1. The utility model provides a production of precast concrete pipeline of variable pipe diameter is with preparation mould, includes outer wall mould (1), its characterized in that: the inner wall die replacing mechanism (2) is arranged on the inner side of the outer wall die (1), the inner wall die replacing mechanism (2) comprises a fixing rod (201), an inner wall die (202), a first motor (203), a first screw rod (204), a thread sliding block (205), a tooth space rotating block (206), a transmission rod (207) and a sliding roller (208), the fixing rod (201) is fixedly connected to the inner side of the outer wall die (1), the inner wall die (202) is arranged on the outer side of the fixing rod (201), the first motor (203) is fixedly connected to the inner side of the rear end of the fixing rod (201), the first screw rod (204) is fixedly connected to the tail end of a main shaft of the first motor (203), the thread sliding block (205) is connected to the outer end face of the first screw rod (204) in a threaded manner, and the tooth space rotating block (206) is rotatably connected to the inner side of the outer end face of the fixing rod (201), the outer end face of the tooth socket rotating block (206) is fixedly connected with a transmission rod (207), the inner side of the other end of the transmission rod (207) is rotatably connected with a sliding roller (208), the rear end of the outer wall mold (1) is provided with an inner wall mold edge positioning mechanism (3), the inner wall mold edge positioning mechanism (3) comprises a fixed frame (301), a second screw rod (302), a sliding block (303), a positioning sliding rod (304), a connecting rod (305), a first bevel gear (306), a second bevel gear (307) and a second motor (308), the fixed frame (301) is fixedly connected to the rear end of the outer wall mold (1), the positioning sliding rod (304) penetrates through the inner side of the rear end face of the outer wall mold (1), the inner side of the positioning sliding rod (304) is provided with an inner wall mold anti-sliding mechanism (4), and the inner wall mold anti-sliding mechanism (4) comprises a ratchet wheel (401), The device comprises a rubber ratchet (402), a pawl (403), an expansion rod (404), a first spring (405), a sliding plate (406), a magnetic block (407), a guide rod frame (408), a second spring (409) and an electromagnet (410).

2. The preparation mould for producing the concrete precast pipeline with the variable pipe diameter according to claim 1 is characterized in that: the thread sliding block (205) is connected to the inner side of the fixing rod (201) in a sliding mode, a tooth groove is formed in one end face of the thread sliding block (205), and the thread sliding block (205) is meshed with the tooth groove rotating block (206) through the tooth groove.

3. The preparation mould for producing the concrete precast pipeline with the variable pipe diameter according to claim 1 is characterized in that: the sliding roller (208) is rotatably connected to the inner wall surface of the inner wall mold (202), and the transmission rod (207) is slidably connected to the inner side of the outer end surface of the fixing rod (201).

4. The preparation mould for producing the concrete precast pipeline with the variable pipe diameter according to claim 1 is characterized in that: the inner side of the fixed frame (301) is rotatably connected with a second screw (302), the outer end face of the second screw (302) is connected with a sliding block (303) in a threaded screwing mode, the sliding block (303) is connected to the rear end face of the outer wall mold (1) in a sliding mode, and the front end of the sliding block (303) is fixedly connected with a positioning sliding rod (304).

5. The preparation mould for producing the concrete precast pipeline with the variable pipe diameter according to claim 4 is characterized in that: one end of the second screw (302) is fixedly connected with a connecting rod (305), the other end of the connecting rod (305) is fixedly connected with a first bevel gear (306), the rear end face of the outer wall mold (1) is fixedly connected with a second motor (308), the tail end of a main shaft of the second motor (308) is fixedly connected with a second bevel gear (307), and the second bevel gear (307) is meshed with the first bevel gear (306).

6. The preparation mould for producing the concrete precast pipeline with the variable pipe diameter according to claim 1 is characterized in that: the ratchet wheel (401) is rotatably connected to the inner side of the positioning slide rod (304), the outer end face of the ratchet wheel (401) is fixedly connected with a rubber ratchet (402), the inner side of the positioning slide rod (304) is slidably connected with a sliding plate (406), and the left end of the sliding plate (406) is rotatably connected with a pawl (403) and a telescopic rod (404).

7. The preparation mould for producing the concrete precast pipeline with the variable pipe diameter according to claim 6 is characterized in that: the pawl (403) is rotatably connected with the telescopic rod (404), a first spring (405) is arranged on the outer side of the telescopic rod (404), and two ends of the first spring (405) are fixedly connected with the pawl (403) and the sliding plate (406) respectively.

8. The preparation mould for producing the concrete precast pipeline with the variable pipe diameter according to claim 6 is characterized in that: the inner side of the positioning slide rod (304) is fixedly connected with a guide rod frame (408), the sliding plate (406) is connected to the outer side of the guide rod frame (408) in a sliding mode, a second spring (409) is arranged on the outer side of the guide rod frame (408), the inner side of the right end of the sliding plate (406) is fixedly connected with a magnetic block (407), the right side of the magnetic block (407) is provided with an electromagnet (410), and the ratchet wheel (401) is fixedly connected to the inner side of the positioning slide rod (304).

Background

The concrete pipe is made of concrete or reinforced concrete in batches, is used for conveying fluids such as water, oil, gas and the like, can be divided into four types, namely plain concrete pipe, common reinforced concrete pipe, self-stress reinforced concrete pipe and prestressed concrete pipe, can save a large amount of steel and prolong the service life compared with steel pipes, has low factory building investment and convenient laying and installation, and is widely applied to factories, mines, oil fields, ports, urban construction and farmland hydraulic engineering.

The existing concrete pipeline can not change the pipe diameter conveniently in the using process, so that a single mould can only produce the same type of concrete prefabricated pipeline, and when the inner wall mould is replaced, the inner wall mould slides to cause that one end of the pipe wall mould can not be well attached to the outer wall mould in the using process to correspond to the outer wall mould, so that the concrete pipeline is not uniform after being formed easily.

Disclosure of Invention

The invention aims to provide a preparation mold for producing a concrete prefabricated pipeline with a variable pipe diameter, which aims to solve the problems in the background art.

In order to achieve the purpose, the invention provides the following technical scheme:

a preparation mold for producing a concrete prefabricated pipeline with variable pipe diameter comprises an outer wall mold, wherein an inner wall mold replacing mechanism is arranged on the inner side of the outer wall mold, the inner wall mold replacing mechanism comprises a fixed rod, an inner wall mold, a first motor, a first screw rod, a thread sliding block, a tooth groove rotating block, a transmission rod and a sliding roller, the fixed rod is fixedly connected to the inner side of the outer wall mold, the inner wall mold is arranged on the outer side of the fixed rod, the first motor is fixedly connected to the inner side of the rear end of the fixed rod, the tail end of a main shaft of the first motor is fixedly connected with the first screw rod, the thread sliding block is connected to the outer end face of the first screw rod in a threaded screwing mode, the tooth groove rotating block is rotatably connected to the inner side of the outer end face of the fixed rod, the transmission rod is fixedly connected to the outer end face of the tooth groove rotating block, and the sliding roller is rotatably connected to the inner side of the other end of the transmission rod, the rear end of outer wall mould is provided with inner wall mould limit end positioning mechanism, inner wall mould limit end positioning mechanism includes mount, second screw rod, sliding block, location slide bar, connecting rod, first bevel gear, second bevel gear and second motor, mount fixed connection is in the rear end of outer wall mould, the rear end face inboard of establishing at the outer wall mould is worn to the location slide bar, the inboard of location slide bar is provided with inner wall mould anti-skidding mechanism, inner wall mould anti-skidding mechanism includes ratchet, rubber ratchet, pawl, telescopic link, first spring, sliding plate, magnetic block, guide bar frame, second spring and electro-magnet.

Preferably, the threaded sliding block is connected to the inner side of the fixing rod in a sliding mode, a tooth socket is formed in one end face of the threaded sliding block, and the threaded sliding block is meshed with the tooth socket rotating block through the tooth socket.

Preferably, the sliding roller is rotatably connected to the inner wall surface of the inner wall mold, and the transmission rod is slidably connected to the inner side of the outer end surface of the fixed rod.

Preferably, the inner side of the fixing frame is rotatably connected with a second screw, the outer end face of the second screw is connected with a sliding block in a threaded manner, the sliding block is connected to the rear end face of the outer wall mold in a sliding manner, and the front end of the sliding block is fixedly connected with a positioning sliding rod.

Preferably, one end of the second screw is fixedly connected with a connecting rod, the other end of the connecting rod is fixedly connected with a first bevel gear, the rear end face of the outer wall mold is fixedly connected with a second motor, the tail end of a spindle of the second motor is fixedly connected with a second bevel gear, and the second bevel gear is meshed with the first bevel gear.

Preferably, the ratchet wheel is rotatably connected to the inner side of the positioning slide rod, the outer end face of the ratchet wheel is fixedly connected with the rubber ratchet, the inner side of the positioning slide rod is slidably connected with the sliding plate, and the left end of the sliding plate is rotatably connected with the pawl and the telescopic rod.

Preferably, the pawl is rotatably connected with the telescopic rod, a first spring is arranged on the outer side of the telescopic rod, and two ends of the first spring are fixedly connected with the pawl and the sliding plate respectively.

Preferably, the inner side of the positioning slide rod is fixedly connected with a guide rod frame, the sliding plate is connected to the outer side of the guide rod frame in a sliding mode, a second spring is arranged on the outer side of the guide rod frame, the inner side of the right end of the sliding plate is fixedly connected with a magnetic block, an electromagnet is arranged on the right side of the magnetic block, and the ratchet wheel is fixedly connected to the inner side of the positioning slide rod.

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

1. according to the invention, the inner wall mold can be positioned through the arranged inner wall mold replacing mechanism, the inner wall mold is ensured to be positioned at the central position of the outer wall mold, and the distance between the inner wall mold and the outer wall mold is changed through replacing the inner wall mold and placing the inner wall molds with different sizes, so that the pipe diameter can be adjusted;

2. according to the invention, the rear end of the inner wall mould is positioned through the arranged inner wall mould side end positioning mechanism, so that the rear end of the inner wall mould with a small size can be positioned at the central position of the rear end of the outer wall mould, thereby ensuring the fixation of the whole position of the inner wall mould, avoiding the possibility of the inner wall mould deflecting, and avoiding the production quality problem of the concrete pipeline caused by the deflection of the inner wall mould;

3. according to the invention, through the arranged anti-skidding mechanism of the inner wall mold, the ratchet can be limited by the pawl to enable the ratchet to rotate in a single direction, so that the inner wall mold can only slide towards the rear end and cannot slide towards the front end after the inner wall mold is replaced and installed, the positioning of the inner wall mold is realized, and the influence of the sliding of the inner wall mold on the production of a concrete pipeline is avoided.

Drawings

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

FIG. 2 is a schematic view of the structure of FIG. 1 at point A according to the present invention;

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

FIG. 4 is a schematic view of the installation structure of the tooth socket rotary block of the present invention;

FIG. 5 is a schematic view of the internal structure of the positioning slide bar of the present invention;

FIG. 6 is a schematic view of the structure at A of FIG. 5 according to the present invention.

In the figure: 1-outer wall mold, 2-inner wall mold replacing mechanism, 201-fixed rod, 202-inner wall mold, 203-first motor, 204-first screw rod, 205-thread slider, 206-tooth space rotating block, 207-transmission rod, 208-sliding roller, 3-inner wall mold edge end positioning mechanism, 301-fixed frame, 302-second screw rod, 303-sliding block, 304-positioning sliding rod, 305-connecting rod, 306-first bevel gear, 307-second bevel gear, 308-second motor, 4-inner wall mold anti-sliding mechanism, 401-ratchet, 402-rubber ratchet, 403-pawl, 404-telescopic rod, 405-first spring, 406-sliding plate, 407-magnetic block, 408-guide rod frame, 409-second spring, 410-an electromagnet.

Detailed Description

Referring to fig. 1-6, the present invention provides a technical solution:

a preparation mold for producing a concrete prefabricated pipeline with variable pipe diameter comprises an outer wall mold 1, wherein an inner wall mold replacing mechanism 2 is arranged on the inner side of the outer wall mold 1, the inner wall mold replacing mechanism 2 comprises a fixing rod 201, an inner wall mold 202, a first motor 203, a first screw 204, a threaded slider 205, a tooth socket rotating block 206, a transmission rod 207 and a sliding roller 208, the fixing rod 201 is fixedly connected to the inner side of the outer wall mold 1, the inner wall mold 202 is arranged on the outer side of the fixing rod 201, the pipe diameter of a concrete pipeline during production is determined through the inner wall mold 202, the first motor 203 is fixedly connected to the inner side of the rear end of the fixing rod 201, the first screw 204 is fixedly connected to the tail end of a main shaft of the first motor 203, the threaded slider 205 is connected to the outer end face of the first screw 204 in a threaded manner, the threaded slider 205 can be driven to slide on the inner side of the fixing rod 201 through the rotation of the first screw 204, the inner side of the outer end face of the fixed rod 201 is rotatably connected with a tooth socket rotating block 206, the outer end face of the tooth socket rotating block 206 is fixedly connected with a transmission rod 207, the inner side of the other end of the transmission rod 207 is rotatably connected with a sliding roller 208, the rear end of the outer wall mold 1 is provided with an inner wall mold edge positioning mechanism 3, the inner wall mold edge positioning mechanism 3 comprises a fixed frame 301, a second screw 302, a sliding block 303, a positioning sliding rod 304, a connecting rod 305, a first bevel gear 306, a second bevel gear 307 and a second motor 308, the fixed frame 301 is fixedly connected to the rear end of the outer wall mold 1, the positioning sliding rod 304 is arranged on the inner side of the rear end face of the outer wall mold 1 in a penetrating manner, the positioning sliding rod 304 is used for positioning the rear end position of the inner wall mold 202, the inner side of the positioning sliding rod 304 is provided with an inner wall mold anti-skid mechanism 4, the inner wall mold anti-skid mechanism 4 comprises a ratchet 401, a rubber ratchet 402, a pawl 403, a telescopic rod 404 and a telescopic rod 404, A first spring 405, a sliding plate 406, a magnetic block 407, a guide bar bracket 408, a second spring 409 and an electromagnet 410.

The threaded sliding block 205 is connected to the inner side of the fixed rod 201 in a sliding manner, a tooth socket is formed in one end face of the threaded sliding block 205, the threaded sliding block 205 is meshed with the tooth socket rotating block 206 through the tooth socket, and the arrangement enables the threaded sliding block 205 to drive the tooth socket rotating block 206 to rotate after sliding; the sliding roller 208 is rotatably connected to the inner wall surface of the inner wall mold 202, the transmission rod 207 is slidably connected to the inner side of the outer end surface of the fixing rod 201, the sliding of the inner wall mold 202 is facilitated through the sliding roller 208, and the transmission rod 207 supports the inner wall mold 202; the inner side of the fixed frame 301 is rotatably connected with a second screw 302, the outer end face of the second screw 302 is connected with a sliding block 303 in a threaded manner, the sliding block 303 is connected with the rear end face of the outer wall mold 1 in a sliding manner, the front end of the sliding block 303 is fixedly connected with a positioning sliding rod 304, and the sliding block 303 and the positioning sliding rod 304 can be driven to slide by the rotation of the second screw 302; one end of the second screw 302 is fixedly connected with a connecting rod 305, the other end of the connecting rod 305 is fixedly connected with a first bevel gear 306, the rear end face of the outer wall mold 1 is fixedly connected with a second motor 308, the tail end of a main shaft of the second motor 308 is fixedly connected with a second bevel gear 307, and the second bevel gear 307 is meshed with the first bevel gear 306; the ratchet wheel 401 is rotatably connected to the inner side of the positioning slide bar 304, the outer end face of the ratchet wheel 401 is fixedly connected with the rubber ratchet 402, the inner side of the positioning slide bar 304 is slidably connected with the sliding plate 406, the left end of the sliding plate 406 is rotatably connected with the pawl 403 and the telescopic rod 404, and the pawl 403 and the telescopic rod 404 can be driven to move through the sliding plate 406; the pawl 403 is rotatably connected with the telescopic rod 404, a first spring 405 is arranged on the outer side of the telescopic rod 404, two ends of the first spring 405 are respectively and fixedly connected with the pawl 403 and the sliding plate 406, the pawl 403 is supported by the telescopic rod 404, and the pawl 403 can be reset after rotating through the elastic force of the first spring 405; the inner side of the positioning slide bar 304 is fixedly connected with a guide bar frame 408, the sliding plate 406 is slidably connected with the outer side of the guide bar frame 408, the outer side of the guide bar frame 408 is provided with a second spring 409, the inner side of the right end of the sliding plate 406 is fixedly connected with a magnetic block 407, the right side of the magnetic block 407 is provided with an electromagnet 410, the ratchet wheel 401 is fixedly connected with the inner side of the positioning slide bar 304, the sliding plate 406 can be driven to slide rightwards through the attraction of the electromagnet 410 to the magnetic block 407, and the resetting of the sliding plate 406 can be realized through the elastic force of the second spring 409.

The working process is as follows: before the device is used, an external power supply is used for supplying power, the device is controlled by a device internal control system, concrete is injected into a gap between an outer wall die 1 and an inner wall die 202, so that the production of a concrete prefabricated pipeline can be realized, when the pipe diameter of the produced concrete prefabricated pipeline needs to be changed, an electromagnet 410 can be started firstly, the electromagnet 410 generates magnetic force after running and attracts a magnetic block 407, then a sliding plate 406 moves rightwards along a guide rod frame 408 until the sliding plate 406 drives a pawl 403 to slide rightwards, so that the pawl 403 does not limit the rubber ratchet 402 any more, at the moment, a ratchet 401 can drive the rubber 402 to slide freely, then the inner wall die 202 is taken out from the inner side of the outer wall die 1 and is used for replacing the inner wall die 202, and the pipe diameter can be changed by placing inner wall dies 202 with different sizes, after the inner wall mold 202 is replaced, the first motor 203 may be first started, so that the first motor 203 drives the first screw 204 to rotate, the first screw 204 rotates and then drives the threaded slider 205 to slide through screwing with the thread of the threaded slider 205, the threaded slider 205 slides and then drives the tooth-space rotating block 206 to rotate through meshing with the tooth-space rotating block 206, the tooth-space rotating block 206 supports the inner wall mold 202 through the transmission rod 207 after rotating, so as to ensure that the inner wall mold 202 is located outside the fixed rod 201, and the fixed rod 201 fits with the center of the inner wall mold 202, then the second motor 308 is started, so that the second motor 308 drives the second bevel gear 307 to rotate, the second bevel gear 307 rotates and then drives the first bevel gear 306 to rotate through meshing with the first bevel gear 306, the second screw 302 driven under the connection of the connection rod 305 rotates, and the second screw 302 rotates and then screws with the sliding block 303, the sliding block 303 is driven to slide, so that the sliding block 303 drives the positioning sliding rod 304 to slide on the inner side of the rear end surface of the outer wall mold 1, at this time, the positioning sliding rod 304 guides the rear end of the inner wall mold 202, so that the rear end of the inner wall mold 202 is located at the center position of the rear end of the outer wall mold 1, and the electromagnet 410 is powered off, so that the electromagnet 410 does not attract the magnetic block 407 any more, then the sliding plate 406 slides leftwards and resets under the elastic force of the second spring 409, then the sliding plate 406 drives the pawl 403 to reset, so that the pawl 403 limits the rubber ratchet 402, at this time, the rubber ratchet 402 and the ratchet wheel 401 can only rotate in one direction, when the rear end of the inner wall mold 202 contacts the outer wall mold 1, the inner wall mold 202 will drive the rubber ratchet 402 to rotate, and the reverse rotation of the rubber ratchet 402 is avoided under the limit of the pawl 403, so that the positioning of the inner wall mold 202 is realized.

The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts of the present invention. The foregoing is only a preferred embodiment of the present invention, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes may be made without departing from the principle of the present invention, and the technical features described above may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention using its spirit and scope, as defined by the claims, may be directed to other uses and embodiments.