1. Valve closing plate, including valve body (1), its characterized in that: go out basin (9) have been seted up to one side of valve body (1), the opposite side of valve body (1) is inlayed and is had sleeve pipe (3), the side welding of valve body (1) has outlet pipe (2), the position of outlet pipe (2) is corresponding with the position of going out basin (9), the inner wall threaded connection of sleeve pipe (3) has inlet tube (4), the inside of valve body (1) is provided with connecting piece (14), the inside of connecting piece (14) is provided with valve plate (19), the top fixed mounting of connecting piece (14) has valve rod (6), the top of valve rod (6) run through valve body (1) and with valve body (1) sliding connection, the top welding of valve rod (6) has screw rod (13), the top welding of valve body (1) has support (5), support (5) are run through at the top of screw rod (13).

2. The valve seal plate of claim 1, wherein: the side welding of valve body (1) inner wall has branch (10), the one end fixed mounting that branch (10) kept away from valve body (1) has push away dish (11), and pushes away dish (11) and be the slope form.

3. The valve seal plate of claim 1, wherein: locating slot (15) has been seted up to the inner wall of connecting piece (14), the inside of locating slot (15) is provided with locating lever (16), the surperficial sliding connection of locating lever (16) has locating piece (18), and locating piece (18) welding is on the surface of valve plate (19).

4. The valve seal plate of claim 3, wherein: the surface of the positioning rod (16) is movably sleeved with a pressure spring (17), and two ends of the pressure spring (17) are respectively lapped with the inner wall of the positioning groove (15) and the side surface of the positioning block (18).

5. The valve seal plate of claim 1, wherein: both ends of the valve plate (19) are inclined planes, and the angle of the inclined plane at one end of the valve plate (19) corresponds to the inclination degree of the push disc (11).

6. The valve seal plate of claim 1, wherein: logical groove (22) have been seted up to the side of valve plate (19), guide way (23) have been seted up to the inner wall that leads to groove (22), the inner wall sliding connection of guide way (23) has guide block (24), the top of guide block (24) is provided with baffle (25), the shape of baffle (25) is corresponding with the shape that leads to groove (22).

7. The valve seal plate of claim 6, wherein: the inner wall of the through groove (22) is provided with a groove (20), the inner wall of the groove (20) is inlaid with a rubber mat (21), the rubber mat (21) is located right above the baffle (25), and the shape of the rubber mat (21) corresponds to that of the baffle (25).

8. The valve seal plate of claim 6, wherein: a guide rod (29) is arranged in the guide groove (23), a fixed block (31) is connected to the surface of the guide rod (29) in a sliding mode, and the fixed block (31) is welded to the side face of the guide block (24).

9. The valve seal plate of claim 8, wherein: the surface of the guide rod (29) is movably sleeved with a spring (30), and two ends of the spring (30) are respectively lapped with the inner wall of the guide groove (23) and the surface of the fixing block (31).

10. The valve seal plate of claim 1, wherein: the surface of screw rod (13) has cup jointed protective sheath (8), protective sheath (8) fixed mounting is at the upper surface of valve disc (7).

Background

The valve is a pipeline accessory for controlling the flow of gas or liquid in a pipeline, and can be divided into various different types of valves according to different functions, and the sealing plate is used as a main blocking component in the valve, so that the functions and the material of the sealing plate are particularly important, and the service life of the valve can be usually determined by the good sealing plate.

The closing plate also divide into the multiple according to its shape of the kind difference of valve, wherein mainly divide into the gate valve closing plate, butterfly valve closing plate and ball valve closing plate three kinds, and leakproofness and pressurized degree according to the valve, the trunk of each rivers pipeline mainly just uses the gate valve closing plate to control the velocity of flow, but because the velocity of flow of rivers trunk is too fast, the gate valve closing plate can be along with closing the degree difference and the pressure boost, so that when the gate valve needs thoroughly close, resistance wherein can reach the summit along with the removal of closing plate, lead to staff or fire fighter to rely on individual strength can't thoroughly seal it, and most gate valve closing plates all can the friction extrusion sealing washer when removing, can cause very big wearing and tearing to the sealing washer in the past in the long term, so that influence the leakproofness of sealing washer.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides the valve sealing plate which has the advantages of reducing the resistance when the gate valve is closed and reducing the abrasion of the sealing ring when the sealing plate moves, and solves the problem that a worker or a fireman cannot completely close the gate valve by personal force and the sealing ring is rubbed and extruded when the sealing plate moves to cause great abrasion.

The invention provides the following technical scheme: the valve sealing plate comprises a valve body, a water outlet groove is formed in one side of the valve body, a sleeve is inlaid in the other side of the valve body, a water outlet pipe is welded to the side face of the valve body, the position of the water outlet pipe corresponds to the position of the water outlet groove, the inner wall of the sleeve is in threaded connection with a water inlet pipe, a connecting piece is arranged inside the valve body, a valve plate is arranged inside the connecting piece, a valve rod is fixedly arranged at the top of the connecting piece, the top of the valve rod penetrates through the valve body and is in sliding connection with the valve body, a screw rod is welded at the top of the valve rod, a support is welded at the top of the valve body, and a support is penetrated through the top of the screw rod.

Preferably, a support rod is welded on the side face of the inner wall of the valve body, a push disc is fixedly mounted at one end, far away from the valve body, of the support rod, and the push disc is in a slope shape.

Preferably, the inner wall of connecting piece has seted up the constant head tank, the inside of constant head tank is provided with the locating lever, the surperficial sliding connection of locating lever has the locating piece, and the locating piece welding is on the surface of valve plate.

Preferably, the surface of the positioning rod is movably sleeved with a pressure spring, and two ends of the pressure spring are respectively lapped with the inner wall of the positioning groove and the side face of the positioning block.

Preferably, both ends of the valve plate are inclined planes, and the angle of the inclined plane at one end of the valve plate corresponds to the inclination degree of the push disc.

Preferably, a through groove is formed in the side face of the valve plate, a guide groove is formed in the inner wall of the through groove, a guide block is connected to the inner wall of the guide groove in a sliding mode, a baffle is arranged at the top end of the guide block, and the shape of the baffle corresponds to that of the through groove.

Preferably, the inner wall of the through groove is provided with a groove, the inner wall of the groove is embedded with a rubber pad, the rubber pad is positioned right above the baffle, and the shape of the rubber pad corresponds to that of the baffle.

Preferably, a guide rod is arranged inside the guide groove, a fixed block is connected to the surface of the guide rod in a sliding mode, and the fixed block is welded to the side face of the guide block.

Preferably, the surface of the guide rod is movably sleeved with a spring, and two ends of the spring are respectively lapped with the inner wall of the guide groove and the surface of the fixing block.

Preferably, the surface of the screw rod is sleeved with a protective sleeve, and the protective sleeve is fixedly installed on the upper surface of the valve disc.

Preferably, the surface of the screw is in threaded sleeve connection with a valve disc, the surface of the valve disc is welded with a limiting ring, a limiting groove is formed in the support, and the valve disc is rotatably connected with the inner wall of the limiting groove through the limiting ring.

Preferably, the spout has been seted up to the sheathed tube inner wall, the inner wall sliding connection of spout has the slider, the slider welding is on the surface of backing ring, the both ends of backing ring are provided with sealing washer and sealed pad respectively, the sleeve pipe is run through to the one end that the backing ring was kept away from to the sealing washer, the one end that the backing ring was kept away from to sealed pad is lapped with the one end of inlet tube.

Compared with the prior art, the invention has the following beneficial effects:

1. this valve seal plate, through setting up guide block and baffle, when the gate valve is closed, rivers along with the valve plate downstream and strengthen the pressure when the gate valve is closed gradually, and can effectively reduce the pressure of rivers through seting up logical groove on the valve plate surface, recycle the guide block along with the removal of valve plate and the bottom contact of valve body inner wall to it is sealed to promote the baffle to lead to the groove, the effectual resistance that reduces rivers when the gate valve is closed, and then makes things convenient for staff or fire fighter to close the gate valve.

2. This valve seal plate, through setting up the pressure spring and pushing away the dish, when the gate valve is closed, along with valve plate downstream, one side of valve plate can with pushing away the dish contact, utilize the pushing away dish extrusion valve plate of slope, can make the valve plate become to be the slope form downstream, just reach sealed effect when valve plate and sealing washer contact to alleviate the extrusion friction that the valve plate caused the sealing washer when reciprocating, increased the life of sealing washer.

3. This valve sealing plate through setting up the sleeve pipe, twists and moves the inlet tube and can tear it out from the cover intraductal backing ring and sealing washer of follow, then recycles the instrument and gets the intraductal backing ring of cover and sealing washer, can directly change the sealing washer to increased the life of valve, when the sealing washer wearing and tearing, only need tear out the inlet tube and can change.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic side sectional view of a positioning groove of the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 2 according to the present invention;

FIG. 4 is an enlarged view of the structure at B in FIG. 2 according to the present invention;

FIG. 5 is a schematic side sectional view of the guide groove of the present invention;

FIG. 6 is an enlarged view of the structure of FIG. 5 at C according to the present invention;

fig. 7 is a schematic view of the disassembled structure inside the casing pipe of the present invention.

In the figure: 1. a valve body; 2. a water outlet pipe; 3. a sleeve; 4. a water inlet pipe; 5. a support; 6. a valve stem; 7. a valve disc; 8. a protective sleeve; 9. a water outlet groove; 10. a strut; 11. pushing the disc; 12. a backing ring; 13. a screw; 14. a connecting member; 15. positioning a groove; 16. positioning a rod; 17. a pressure spring; 18. positioning blocks; 19. a valve plate; 20. a groove; 21. a rubber pad; 22. a through groove; 23. a guide groove; 24. a guide block; 25. a baffle plate; 26. a limiting groove; 27. a limiting ring; 28. a seal ring; 29. a guide bar; 30. a spring; 31. a fixed block; 32. a slider; 33. a gasket; 34. a chute.

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. 1-7, a valve sealing plate includes a valve body 1, a supporting rod 10 is welded on a side surface of an inner wall of the valve body 1, a push disc 11 is fixedly installed at one end of the supporting rod 10 away from the valve body 1, the push disc 11 is in a slope shape, the valve plate 19 is pressed by the push disc 11 to seal the sealing ring 28, friction of the valve plate 19 against the sealing ring 28 can be reduced, a water outlet groove 9 is formed in one side of the valve body 1, a sleeve 3 is embedded in the other side of the valve body 1, a sliding groove 34 is formed in an inner wall of the sleeve 3, a sliding block 32 is connected to an inner wall of the sliding groove 34 in a sliding manner, the sliding block 32 is welded on a surface of a backing ring 12, a sealing ring 28 and a sealing gasket 33 are respectively arranged at two ends of the backing ring 12, one end of the sealing ring 28 away from the backing ring 12 penetrates through the sleeve 3, one end of the sealing gasket 33 away from the backing ring 12 is lapped over with one end of a water inlet pipe 4, the sleeve 3 is in threaded connection with the water inlet pipe 4, so that the sealing ring 28 can be conveniently replaced, the side of the valve body 1 is welded with the water outlet pipe 2, the position of the water outlet pipe 2 corresponds to the position of the water outlet groove 9, the inner wall of the sleeve 3 is in threaded connection with the water inlet pipe 4, the inside of the valve body 1 is provided with the connecting piece 14, the inner wall of the connecting piece 14 is provided with the positioning groove 15, the inside of the positioning groove 15 is provided with the positioning rod 16, the surface of the positioning rod 16 is in sliding connection with the positioning block 18, the positioning block 18 is welded on the surface of the valve plate 19, the moving position of the valve plate 19 can be guided by utilizing the sliding connection of the positioning block 18 and the positioning rod 16, the surface of the positioning rod 16 is movably sleeved with the pressure spring 17, two ends of the pressure spring 17 are respectively in lap joint with the inner wall of the positioning groove 15 and the side of the positioning block 18, the positioning block 18 is extruded by arranging the pressure spring 17, the valve plate 19 can automatically slide to one side when being opened, the inside of the connecting piece 14 is provided with the valve plate 19, and two ends of the valve plate 19 are inclined planes, the angle of the inclined plane at one end of the valve plate 19 corresponds to the inclination degree of the push disc 11, the valve plate 19 and the push disc 11 can be conveniently matched to seal the sealing ring 28 by arranging the two ends of the valve plate 19 as inclined planes, the side surface of the valve plate 19 is provided with a through groove 22, the inner wall of the through groove 22 is provided with a guide groove 23, a guide rod 29 is arranged inside the guide groove 23, the surface of the guide rod 29 is slidably connected with a fixed block 31, the fixed block 31 is welded at the side surface of the guide block 24, the guide block 24 is limited by the fixed block 31, meanwhile, the guide block 24 can be prevented from falling off, the surface of the guide rod 29 is movably sleeved with a spring 30, the two ends of the spring 30 are respectively overlapped with the inner wall of the guide groove 23 and the surface of the fixed block 31, the guide block 24 can be always in a stretching state by pushing the fixed block 31 by the spring 30, the inner wall of the guide groove 23 is slidably connected with the guide block 24, the top end of the guide block 24 is provided with a baffle 25, the shape of baffle 25 is corresponding to the shape of through groove 22, when the bottom of valve plate 19 is lapped with the bottom of the inner wall of valve body 1, guide block 24 is extruded by the bottom of the inner wall of valve body 1 to push baffle 25 to seal through groove 22, groove 20 is formed in the inner wall of through groove 22, rubber pad 21 is inlaid in the inner wall of groove 20, rubber pad 21 is located right above baffle 25, the shape of rubber pad 21 is corresponding to the shape of baffle 25, the sealing performance of baffle 25 can be improved by arranging rubber pad 21, water flow is prevented from seeping from through groove 22 after the valve is closed, valve rod 6 is fixedly installed at the top of connecting piece 14, the top of valve rod 6 penetrates through valve body 1 and is in sliding connection with valve body 1, screw rod 13 is welded at the top of valve rod 6, protective sleeve 8 is sleeved on the surface of screw rod 13, protective sleeve 8 is fixedly installed on the upper surface of valve disk 7, protective sleeve 13 is used for protecting screw rod 13 by arranging protective sleeve 8, avoid the dust to adhere to and cause the influence to it on the screw rod 13 surface, screw rod 13 surface thread has cup jointed valve disc 7, the skin weld of valve disc 7 has spacing ring 27, spacing groove 26 has been seted up to support 5's inside, valve disc 7 rotates through the inner wall of spacing ring 27 with spacing groove 26 to be connected, it is spacing to utilize spacing ring 27 to carry out valve disc 7, make the position of valve disc 7 fix on support 5, avoid valve disc 7 to drop, the welding of the top of valve body 1 has support 5, support 5 is run through at the top of screw rod 13.

The working principle is that when the valve is closed, the valve disc 7 is rotated, the screw 13 drives the valve rod 6 to move downwards along with the rotation of the valve disc 7, the connecting piece 14 drives the valve plate 19 to move downwards along with the movement of the valve rod 6, when one side of the valve plate 19 contacts the push disk 11, the valve plate 19 is simultaneously pressed by the push force of the valve rod 6 and the push disk 11, thereby compressing the compression spring 17 through the positioning block 18 until the other side of the valve plate 19 presses and seals the sealing ring 28, at the same time, as the valve plate 19 moves downward, the bottom of the guide block 24 overlaps the bottom of the inner wall of the valve body 1, when the valve plate 19 continues to move, the guide block 24 is retracted into the guide groove 23 along with the movement of the valve plate 19, at the same time, the baffle 25 is pushed to move to seal the through groove 22, when the valve plate 19 seals the sealing ring 28, the guide block 24 simultaneously seals the through slot 22 by means of the shutter 25, and when the valve is opened, the valve plate 19 moves in the opposite step described above.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.