1. A wear-resistant black water angle type regulating valve with an automatic rotation function and silicon nitride ceramic lining;

the valve body can play a role in draining the black water;

the connecting seat is connected to the bottom and the side face of the valve body and can guide the flow of the black water;

the valve seat is connected to the top of the valve body and can adjust the flow of the black water;

the cylinder is arranged at the top of the valve seat and can carry out pneumatic adjustment on the flow;

the rotating disc is connected to the side face of the valve seat and can be used for manually adjusting the flow;

it is characterized by comprising:

the torsion spring is connected inside the connecting seat;

the first positioning block is connected to the side face of the connecting seat and can position and fix the connecting seat;

the motor is arranged on the side surface of the valve body and can be used for basic acting force of the rotation of the valve body;

the protection plate is connected to the side face of the valve seat and can protect the valve rod in the valve seat;

and the threaded ring is connected to the side surface of the valve seat, and can fix the rotating disc.

2. The silicon nitride ceramic wear-resistant black water angle type regulating valve with the automatic rotation function as claimed in claim 1, wherein: the utility model discloses a rotary joint, including connecting seat, extrusion groove, torsional spring and first rotary rod, connecting seat side is connected with the go-between, first rotatory groove has been seted up to the connecting seat side, be close to first rotatory groove extrusion groove has been seted up to the inside of connecting seat, through connection has first rotary rod between first rotatory groove, extrusion groove, torsional spring and the first locating piece, and constitutes reset structure between extrusion groove, torsional spring and the first rotary rod to first locating piece and first rotary rod structure as an organic whole constitute revolution mechanic between first rotary rod and first rotatory groove, the extrusion groove.

3. The silicon nitride ceramic wear-resistant black water angle type regulating valve with the automatic rotation function as claimed in claim 1, wherein: the connecting seat is also provided with a connecting pipe and a positioning groove;

the connecting pipe is arranged on the side surface of the connecting seat;

the locating slot is arranged on the side surface of the connecting pipe, and the locating slot is in sliding connection with the first locating block.

4. The silicon nitride ceramic wear-resistant black water angle type regulating valve with the automatic rotation function as claimed in claim 1, wherein: the upper side and the lower side of the valve body are connected with rotating rings, the side faces of the rotating rings are connected with sealing gaskets, and the side faces of the valve body are fixedly connected with mounting blocks.

5. The silicon nitride ceramic wear-resistant black water angle type regulating valve with the automatic rotation function as claimed in claim 4, wherein: the mounting block is also provided with a second rotating rod and a gear;

the second rotating rod is connected between the mounting block and the motor in a penetrating manner, and a rotating structure is formed among the mounting block, the motor and the second rotating rod;

and the gear is fixedly connected to one end of the second rotating rod.

6. The silicon nitride ceramic wear-resistant black water angle type regulating valve with the automatic rotation function as claimed in claim 1, wherein: the top of connecting seat and the bottom of disk seat all are connected with the connecting block, are close to rotatory ring the second swivelling chute has been seted up to the connecting block side, and constitute revolution mechanic between rotatory ring and the second swivelling chute to the thickness of sealed pad slightly is less than the interval between rotatory ring and the second swivelling chute, is close to the gear the sawtooth groove has been seted up to the connecting block side, and constitutes the meshing structure between sawtooth groove and the gear.

7. The silicon nitride ceramic wear-resistant black water angle type regulating valve with the automatic rotation function as claimed in claim 1, wherein: the valve seat is provided with a hinge, a pressing groove, a pressing plate, a clamping block and a clamping groove;

the hinge is connected between the valve seat and the protection plate, the protection plate can be opened and closed through the hinge, and a turnover structure is formed between the valve seat and the protection plate through the hinge;

the pressing groove is formed in the side face of the protection plate;

the pressing plate is fixedly connected to the side surface of the pressing groove;

the clamping block is fixedly connected to the side surface of the pressing plate and can fix the protection plate;

and the clamping groove is formed in the side surface of the valve seat, and a clamping structure is formed between the clamping groove and the clamping block.

8. The silicon nitride ceramic wear-resistant black water angle type regulating valve with the automatic rotation function as claimed in claim 7, wherein: the pressing plate and the clamping block are both made of hard plastic materials, the thickness of the pressing plate and the thickness of the clamping block are slightly smaller than that of the pressing groove, the clamping block and the clamping groove are both in a trapezoidal shape, and a clamping structure is formed between the clamping block and the clamping groove.

9. The silicon nitride ceramic wear-resistant black water angle type regulating valve with the automatic rotation function as claimed in claim 1, wherein: the valve seat is also provided with a connecting cylinder, a fixing groove and a notch;

the connecting cylinder is connected to the side face of the valve seat, and the connecting cylinder is in threaded connection with the threaded ring;

the fixing groove is formed in the end face of the connecting cylinder;

the notches are distributed on the side surfaces of the fixing groove and the threaded ring.

10. The silicon nitride ceramic wear-resistant black water angle type regulating valve with the automatic rotation function as claimed in claim 1, wherein: the side face of the rotating disc is fixedly connected with a fixing block, the fixing block is in sliding connection with the fixing groove, the side face of the fixing block is fixedly connected with a second positioning block, the width of the second positioning block is the same as the width of the notch, and the second positioning block is in sliding connection with the notch.

Background

The regulating valve is also called a control valve, and in the field of industrial automation process control, the final control element for changing the process parameters of medium flow, pressure, temperature, liquid level and the like by power operation through receiving the control signal output by a regulating control unit. Generally consisting of an actuator and a valve. If according to the stroke characteristic, the regulating valve can be divided into a straight stroke and an angular stroke; the power used by the matched actuating mechanism can be divided into three types, namely a pneumatic regulating valve, an electric regulating valve and a hydraulic regulating valve, and is divided into three types, namely a linear characteristic, an equal percentage characteristic and a parabolic characteristic, according to the functions and the characteristics of the pneumatic regulating valve, the electric regulating valve and the hydraulic regulating valve. The adjusting valve is suitable for media such as air, water, steam, various corrosive media, slurry, oil and the like, and the existing silicon nitride-lined ceramic wear-resistant black water angle type adjusting valve has certain defects when in use, such as the defect;

an angle type governing valve like publication No. CN205298591U, the utility model provides an angle type governing valve, when angle type governing valve horizontal installation, the second plane is on a parallel with the horizontal plane, and the axis of push rod is perpendicular to the horizontal plane, the direction of gravity of push rod and the axis of push rod-actuating, the power that pipeline fluid acted on the case is transmitted to the push rod through valve rod, first straight-bar, second straight-bar and transmission case, make the gravity of push rod, the effort that the push rod receives actuating mechanism and the effort of transmission case to the push rod can reach the equilibrium, simultaneously, when the valve rod is driven by the push rod and moves, valve rod and gland packing can not rub, can not cause and reveal, so, the regulation effect of angle type governing valve has been improved, make things convenient for accomodating of the device to carry;

this prior art solution also exists when in use:

1. the valve body does not have a rotating function;

2. the connecting pipes are inconvenient to connect;

3. the first positioning block is inconvenient to open automatically;

4. the valve rod is easy to damage, and the valve seat does not have a protection function;

5. is inconvenient to disassemble when not in use;

improvements are needed to address the above problems.

Disclosure of Invention

The invention provides the following technical scheme: the invention aims to provide a wear-resistant black water angle type regulating valve with an automatic rotation function and lined with silicon nitride ceramics, and aims to solve the problems that the wear-resistant black water angle type regulating valve with the lined silicon nitride ceramics in the market proposed by the background art has many defects, a valve body does not have the rotation function, a connecting pipe is inconvenient to connect, a first positioning block is inconvenient to automatically open, a valve rod is easy to damage, a valve seat does not have the protection function, and the valve seat is inconvenient to disassemble when not used.

In order to achieve the purpose, the invention provides the following technical scheme: a wear-resistant black water angle type regulating valve with an automatic rotation function and silicon nitride ceramic lining;

the valve body can play a role in draining the black water;

the connecting seat is connected to the bottom and the side face of the valve body and can guide the flow of the black water;

the valve seat is connected to the top of the valve body and can adjust the flow of the black water;

the cylinder is arranged at the top of the valve seat and can carry out pneumatic adjustment on the flow;

the rotating disc is connected to the side face of the valve seat and can be used for manually adjusting the flow;

the method comprises the following steps:

the torsion spring is connected inside the connecting seat;

the first positioning block is connected to the side face of the connecting seat and can position and fix the connecting seat;

the motor is arranged on the side surface of the valve body and can be used for basic acting force of the rotation of the valve body;

the protection plate is connected to the side face of the valve seat and can protect the valve rod in the valve seat;

and the threaded ring is connected to the side surface of the valve seat, and can fix the rotating disc.

Preferably, the connecting seat side is connected with the go-between, first swivelling chute has been seted up to the connecting seat side, is close to first swivelling chute the extrusion groove has been seted up to the inside of connecting seat, run through between first swivelling chute, extrusion groove, torsional spring and the first locating piece and be connected with first rotary rod, and extrude the groove, constitute the revolution mechanic between torsional spring and the first rotary rod, and first locating piece and first rotary rod structure as an organic whole, constitute revolution mechanic between first rotary rod and the first swivelling chute, the first rotary rod can reset through the elasticity of torsional spring self when go-between screw thread slip separates with first locating piece, first rotary rod can drive first locating piece and rotate, can slide separation with the constant head tank when first locating piece rotates.

Preferably, the connecting seat is also provided with a connecting pipe and a positioning groove;

the connecting pipe is arranged on the side surface of the connecting seat;

the constant head tank is seted up the side of connecting pipe, and be sliding connection between constant head tank and the first locating piece, can drive first rotary rod when first locating piece receives the extrusion and rotate, can insert the inside of constant head tank when first locating piece is rotatory.

Preferably, both sides are connected with rotatory ring about the valve body, rotatory ring side is connected with sealed the pad, valve body side fixedly connected with installation piece can drive rotatory ring and rotate when the valve body rotates, can rotate through the second swivelling chute when rotatory ring rotates, can seal through sealed the pad when rotatory ring rotates.

Preferably, the mounting block is further provided with a second rotating rod and a gear;

the second rotating rod is connected between the mounting block and the motor in a penetrating manner, and a rotating structure is formed among the mounting block, the motor and the second rotating rod;

the gear, fixed connection is in the one end of second rotary rod, the motor during operation can drive the second rotary rod and rotate, can drive the gear when the second rotary rod rotates and rotate.

Preferably, the top of connecting seat and the bottom of disk seat all are connected with the connecting block, are close to rotatory ring the second swivelling chute has been seted up to the connecting block side, and constitute revolution mechanic between rotatory ring and the second swivelling chute to the thickness of sealed pad slightly is less than the interval between rotatory ring and the second swivelling chute, is close to the gear the sawtooth groove has been seted up to the connecting block side, and constitutes the meshing structure between sawtooth groove and the gear, can make the valve body rotate through the cockscomb structure of sawtooth groove during gear revolve, can drive rotatory ring when the valve body rotates and rotate.

Preferably, the valve seat is provided with a hinge, a pressing groove, a pressing plate, a clamping block and a clamping groove;

the hinge is connected between the valve seat and the protection plate, the protection plate can be opened and closed through the hinge, a turnover structure is formed between the valve seat and the protection plate through the hinge, the protection plate can be driven to rotate by pulling the hinge, the protection plate and the valve seat can be turned over when the hinge rotates, and the pressing plate can be driven to move when the protection plate is turned over;

the pressing groove is formed in the side face of the protection plate;

the pressing plate is fixedly connected to the side surface of the pressing groove;

the clamping block is fixedly connected to the side surface of the pressing plate and can fix the protection plate;

and the clamping groove is formed in the side surface of the valve seat, and a clamping structure is formed between the clamping groove and the clamping block.

Preferably, press the clamp plate and block piece together for the duroplasts material, and press the thickness of plate thickness and block piece slightly to be less than the thickness of pressing the groove, and block piece and block groove together are trapezoidal form, constitute the block structure between block and the block groove, can drive the block piece and extrude the disk seat when pressing the clamp plate removal, the block piece with press the clamp plate and receive to produce deformation through self duroplasts material when extrudeing, can drive the position that the block piece removed the block groove after pressing the clamp plate deformation, press the clamp plate and block piece and can reset and block the groove and carry out the block and be connected.

Preferably, the valve seat is further provided with a connecting cylinder, a fixing groove and a notch;

the connecting cylinder is connected to the side face of the valve seat, and the connecting cylinder is in threaded connection with the threaded ring;

the fixing groove is formed in the end face of the connecting cylinder;

the breach distributes and sets up the side of fixed slot and screw ring can drive when screw ring screw thread slides and dock between the breach, and pulling rolling disc can drive the fixed block and slide with the fixed slot after the breach docks.

Preferably, carousel side fixedly connected with fixed block, and be sliding connection between fixed block and the fixed slot, fixed block side fixedly connected with second locating piece, and the width of second locating piece is the same with the width size of breach to sliding connection between second locating piece and the breach, the pulling carousel can drive the fixed block and slide with the fixed slot, can drive the second locating piece and slide with the breach when the fixed block slides and separate.

Compared with the prior art, the invention has the beneficial effects that: this wear-resisting black water angle formula governing valve of inside lining silicon nitride pottery with autogiration function, the motor during operation can drive the second rotary rod and rotate, the gear can be driven during the rotation of second rotary rod and rotate, the cockscomb structure that can pass through the sawtooth groove during gear revolve makes the valve body rotate, the inside that can insert the constant head tank when first constant head tank is rotatory, the go-between can fix first constant head tank when the go-between screw thread slides between connecting seat and the connecting pipe, make things convenient for connecting seat and connecting pipe to carry out quick fixation.

1. The motor can drive the second rotating rod to rotate when working, the gear can be driven to rotate when the second rotating rod rotates, the valve body can be rotated through the saw tooth shape of the saw tooth groove when the gear rotates, the rotating ring can be driven to rotate when the valve body rotates, the rotating ring can rotate through the second rotating groove when rotating, the rotating ring can be sealed through the sealing gasket when rotating, and the valve body can be conveniently connected with a pipeline which does not pass through the direction as required;

2. the connecting base can be butted by pulling the connecting pipe, so that the connecting ring can be rotated to perform threaded sliding with the connecting pipe through the connecting base, the first positioning block can be extruded when the connecting ring is in threaded sliding, the first rotating rod can be driven to rotate when the first positioning block is extruded, the first positioning block can be inserted into the positioning groove when rotating, and the connecting ring can fix the first positioning block when the connecting ring is in threaded sliding between the connecting base and the connecting pipe, so that the connecting base and the connecting pipe can be conveniently and quickly fixed;

3. the connecting ring can be rotated to perform threaded sliding with the connecting pipe through the connecting seat, the first rotary rod can reset through the elasticity of the torsion spring when the connecting ring is separated from the first positioning block, the first rotary rod can drive the first positioning block to rotate, the first positioning block can be separated from the positioning groove in a sliding manner when rotating, and the first positioning block can be opened automatically when the connecting seat is separated from the connecting pipe;

4. the hinge is arranged and can rotate by pulling the protection plate, the protection plate and the valve seat can be turned over when the hinge rotates, the protection plate can drive the pressing plate to move when turned over, the clamping block can be driven to extrude the valve seat when the pressing plate moves, the clamping block and the pressing plate can deform through self hard plastic materials when extruded, the clamping block can be driven to move to the position of the clamping groove after the pressing plate deforms, the pressing plate and the clamping block can reset and are clamped and connected with the clamping groove, and the protection of the valve seat through the protection plate can be facilitated when the valve seat is used;

5. the connecting cylinder can be arranged to perform threaded sliding through rotating the threaded ring, the threaded ring can be driven to be in butt joint with the notches during threaded sliding, the rotating disc can be pulled to drive the fixing block to slide with the fixing groove after the notches are in butt joint, the second positioning block can be driven to be in sliding separation with the notches during sliding of the fixing block, and the rotating disc can be detached and stored conveniently when not in use.

Drawings

FIG. 1 is a schematic diagram of the front appearance structure of the present invention;

FIG. 2 is a schematic cross-sectional front view of the present invention;

FIG. 3 is a schematic side sectional view of the present invention.

In the figure: 1. a valve body; 2. a connecting seat; 3. a valve seat; 4. a cylinder; 5. rotating the disc; 6. a connecting ring; 7. a first rotary tank; 8. extruding a groove; 9. a first rotating rod; 10. a torsion spring; 11. a first positioning block; 12. a connecting pipe; 13. positioning a groove; 14. a rotating ring; 15. a gasket; 16. mounting blocks; 17. a motor; 18. a second rotating rod; 19. a gear; 20. connecting blocks; 21. a second rotary tank; 22. a sawtooth groove; 23. a hinge; 24. a protection plate; 25. pressing the groove; 26. a pressing plate; 27. a clamping block; 28. a clamping groove; 29. a connecting cylinder; 30. fixing grooves; 31. a threaded ring; 32. a notch; 33. a fixed block; 34. and a second positioning block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a wear-resistant black water angle type regulating valve with an automatic rotation function and silicon nitride ceramic lining;

the valve body 1 can play a role in draining black water;

the connecting seat 2 is connected to the bottom and the side face of the valve body 1, and the connecting seat 2 can guide the black water;

the valve seat 3 is connected to the top of the valve body 1, and the valve seat 3 can adjust the flow of the black water;

the air cylinder 4 is arranged at the top of the valve seat 3, and the air cylinder 4 can be used for pneumatically adjusting the flow;

the rotating disc 5 is connected to the side face of the valve seat 3, and the rotating disc 5 can be used for manually adjusting the flow;

the method comprises the following steps:

a torsion spring 10 connected to the inside of the connecting socket 2;

the first positioning block 11 is connected to the side surface of the connecting seat 2, and the first positioning block 11 can position and fix the connecting seat 2;

the motor 17 is arranged on the side surface of the valve body 1, and the motor 17 can be used for basic acting force of the rotation of the valve body 1;

the protection plate 24 is connected to the side surface of the valve seat 3, and the protection plate 24 can protect the valve rod in the valve seat 3;

and a screw ring 31 coupled to a side surface of the valve seat 3, and the screw ring 31 may fix the rotary disk 5.

Referring to fig. 2, it can be known that the motor 17 can drive the second rotating rod 18 to rotate when operating, the second rotating rod 18 can drive the gear 19 to rotate when rotating, the gear 19 can rotate the valve body 1 through the saw-toothed shape of the saw-toothed groove 22, the valve body 1 can drive the rotating ring 14 to rotate when rotating, the rotating ring 14 can rotate through the second rotating groove 21 when rotating, and the rotating ring 14 can be sealed through the sealing gasket 15 while rotating.

The upper side and the lower side of the valve body 1 are connected with rotating rings 14, the side surfaces of the rotating rings 14 are connected with sealing gaskets 15, and the side surfaces of the valve body 1 are fixedly connected with mounting blocks 16.

The mounting block 16 is further provided with a second rotary rod 18 and a gear 19;

a second rotating rod 18, which is connected between the mounting block 16 and the motor 17 in a penetrating way, and a rotating structure is formed among the mounting block 16, the motor 17 and the second rotating rod 18;

and a gear 19 fixedly connected to one end of the second rotating rod 18.

The top of connecting seat 2 and the bottom of valve seat 3 all are connected with connecting block 20, have seted up second swivelling chute 21 near the connecting block 20 side of rotatory ring 14, and constitute revolution mechanic between rotatory ring 14 and the second swivelling chute 21 to the thickness of sealed pad 15 slightly is less than the interval between rotatory ring 14 and the second swivelling chute 21, and sawtooth groove 22 has been seted up to the connecting block 20 side near gear 19, and constitutes the meshing structure between sawtooth groove 22 and the gear 19.

Referring to fig. 2, it can be known that the connecting ring 6 can be rotated to perform a threaded sliding motion with the connecting tube 12 through the connecting seat 2, the first rotating rod 9 can be reset by the elasticity of the torsion spring 10 when the connecting ring 6 is separated from the first positioning block 11, the first rotating rod 9 can drive the first positioning block 11 to rotate, and the first positioning block 11 can be separated from the positioning groove 13 by the sliding motion when rotating.

2 sides of connecting seat are connected with go-between 6, first swivelling chute 7 has been seted up to 2 sides of connecting seat, extrusion groove 8 has been seted up to the inside of connecting seat 2 that is close to first swivelling chute 7, extrusion groove 8, through connection has first rotary rod 9 between torsional spring 10 and the first locating piece 11, and extrusion groove 8, constitute reset structure between torsional spring 10 and the first rotary rod 9, and first locating piece 11 and first rotary rod 9 structure as an organic whole, first rotary rod 9 and first swivelling chute 7, constitute revolution mechanic between the extrusion groove 8.

The connecting seat 2 is also provided with a connecting pipe 12 and a positioning groove 13;

a connection pipe 12 provided at a side surface of the connection holder 2;

and the positioning groove 13 is formed in the side surface of the connecting pipe 12, and the positioning groove 13 is in sliding connection with the first positioning block 11.

Referring to fig. 3, it can be known that pulling protection plate 24 can drive hinge 23 and rotate, hinge 23 can make protection plate 24 and valve seat 3 overturn when rotating, protection plate 24 can drive when overturning and press pressing plate 26 and remove, press pressing plate 26 and can drive block 27 and extrude valve seat 3 when removing, block 27 and pressing plate 26 can produce deformation through self hard plastic material when receiving the extrusion, can drive block 27 and remove the position in block groove 28 after pressing plate 26 deforms, press plate 26 and block 27 and can reset and block the connection with block groove 28.

The valve seat 3 is provided with a hinge 23, a pressing groove 25, a pressing plate 26, an engaging block 27 and an engaging groove 28;

the hinge 23 is connected between the valve seat 3 and the protection plate 24, the hinge 23 can enable the protection plate 24 to be opened and closed, and the valve seat 3 and the protection plate 24 form a turnover structure through the hinge 23;

a pressing groove 25 formed in a side surface of the shielding plate 24;

a pressing plate 26 fixedly connected to a side surface of the pressing groove 25;

an engaging block 27 fixedly connected to a side surface of the pressing plate 26, and the engaging block 27 can fix the protection plate 24;

and an engaging groove 28 formed in a side surface of the valve seat 3, wherein an engaging structure is formed between the engaging groove 28 and the engaging block 27.

The pressing plate 26 and the engaging block 27 are made of hard plastic, the thickness of the pressing plate 26 and the thickness of the engaging block 27 are slightly smaller than the thickness of the pressing groove 25, the engaging block 27 and the engaging groove 28 are trapezoidal, and an engaging structure is formed between the engaging block 27 and the engaging groove 28.

Referring to fig. 3, it can be known that the threaded ring 31 can be rotated to perform threaded sliding through the connecting cylinder 29, the threaded ring 31 can drive the notches 32 to be in butt joint when the threaded ring slides in a threaded manner, the rotating disc 5 can be pulled to drive the fixing block 33 and the fixing groove 30 to slide after the notches 32 are in butt joint, and the fixing block 33 can drive the second positioning block 34 and the notches 32 to be separated when the fixing block 33 slides.

The valve seat 3 is also provided with a connecting cylinder 29, a fixing groove 30 and a gap 32;

the connecting cylinder 29 is connected to the side surface of the valve seat 3, and the connecting cylinder 29 is in threaded connection with the threaded ring 31;

a fixing groove 30 opened in an end surface of the connecting cylinder 29;

notches 32 are distributed on the side surfaces of the fixing groove 30 and the threaded ring 31.

The side surface of the rotating disc 5 is fixedly connected with a fixing block 33, the fixing block 33 is in sliding connection with the fixing groove 30, the side surface of the fixing block 33 is fixedly connected with a second positioning block 34, the width of the second positioning block 34 is the same as the width of the notch 32, and the second positioning block 34 is in sliding connection with the notch 32.

The working principle is as follows: when the wear-resistant black water angle type regulating valve with the automatic rotation function is used, firstly, the wear-resistant black water angle type regulating valve with the automatic rotation function needs to be simply known, when in use, the motor 17 can drive the second rotating rod 18 to rotate when working, the second rotating rod 18 can drive the gear 19 to rotate when rotating, the valve body 1 can be rotated through the saw tooth shape of the saw tooth groove 22 when the gear 19 rotates, the rotating ring 14 can be driven to rotate when the valve body 1 rotates, the rotating ring 14 can rotate through the second rotating groove 21 when rotating, the rotating ring 14 can be sealed through the sealing gasket 15 when rotating, when the valve body 1 rotates to a specified position, the connecting pipe 12 can be pulled to be in butt joint with the connecting seat 2, and the rotating connecting ring 6 can be in threaded sliding with the connecting pipe 12 through the connecting seat 2, the connecting ring 6 can extrude the first positioning block 11 when sliding in a thread manner, the first positioning block 11 can drive the first rotating rod 9 to rotate when being extruded, the first positioning block 11 can be inserted into the positioning groove 13 when rotating, the connecting ring 6 can fix the first positioning block 11 when the connecting ring 6 slides in a thread manner between the connecting seat 2 and the connecting pipe 12, and the connecting pipe 12 can be used after being connected.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.