CN115582801A - Sleeve mounting tool and mounting method - Google Patents

Abstract

The application relates to the technical field of assembly type construction tools, specifically discloses a sleeve mounting tool, includes: the automatic pressurizing device comprises a fixed seat, an adjusting mechanism, two limiting seats, a transmission gear shaft, two push-pull plates and an automatic pressurizing mechanism; the motor is fixedly connected inside the fixed seat, and the adjusting mechanism is rotatably connected on the fixed seat; two limiting seats are fixedly arranged on the adjusting mechanism; the limit seats are provided with push-pull plates in a sliding fit manner; the transmission gear shaft is rotationally connected with the fixed seat and drives the two push-pull plates to reciprocate to mount the sleeve; the push-pull plate is rotatably connected with an automatic pressurizing mechanism to realize the transformation of pressure. The invention adopts the technical means of the transmission gear shaft and the push-pull plate, effectively solves the technical problems in the prior art, and further realizes the purpose of continuously rotating the sleeve by using machinery, thereby realizing the installation of the sleeve, greatly improving the installation efficiency of the sleeve and simultaneously lightening the labor force.

Description

A sleeve installation tool and installation method

technical field

The present application relates to the technical field of prefabricated construction tools, and more specifically, relates to a socket installation tool and an installation method.

Background technique

The use of steel bar connecting sleeves in the construction industry can greatly reduce the use of materials, and it is easy to operate and is not limited by the type of steel bar composition. It can be prefabricated in advance, does not occupy the construction period, and has high processing efficiency. Installation tools are required for the installation of the steel connection sleeve.

The prior art publication No. CN114888754A provides a sleeve installation tool. The device directly applies force to the sleeve through the force-applying structure of the inner edge of the fixed lip and the movable lip. Since the force-applying structure is movable, it can be moved back and forth. Rotate the tool so that the force-applying structure collides with the appropriate force-applying point to install the sleeve. During the construction process, the installation tool can not be removed to improve the installation efficiency; the reaction force component adopts the form of guide nails and springs. After the barrel, the spring compression can control the pressing depth of the guide nail on the lip of the fixed lever and the lip of the movable lever, so that it can automatically adapt to the installation of sockets of different specifications; it is suitable for the installation of butt sockets, and can also be used for sockets with narrow spaces The installation solves the problem of difficult installation of the existing wrench when the installation space is limited.

Although the above-mentioned existing technical solutions can achieve relevant beneficial effects through the structure of the prior art, there are still the following defects; when the device is in use, it needs to be manually rotated back and forth to achieve the installation of the sleeve. The method is not only inefficient, but also increases the labor force and causes human fatigue.

In view of this, we propose a socket installation tool.

Contents of the invention

1. Technical problems to be solved

The purpose of the present application is to provide a socket installation tool, which solves the technical problems raised in the above-mentioned background technology, and realizes the technical effect of mechanized installation of the socket.

2. Technical solution

The embodiment of the present application provides a sleeve installation tool, including: a fixed seat, an adjustment mechanism, two limit seats, a transmission gear shaft, two push-pull plates and an automatic pressurization mechanism, and the fixed seat is internally connected and fixed with a a motor, and an adjustment mechanism is arranged on the fixed seat for rotation connection;

There are two limit seats fixed on the adjustment mechanism; push-pull plates are installed on the limit seats for sliding fit;

The transmission gear shaft is rotationally connected and arranged on the fixed seat, and the motor can drive the transmission gear shaft to rotate, and the transmission gear shaft drives two push-pull plates to realize reciprocating movement to install the sleeve;

An automatic pressurization mechanism is installed on the push-pull plate and connected by rotation; the automatic pressurization mechanism realizes the transformation of the pressure.

As an alternative to the technical solution of the present application, the adjustment mechanism includes a two-way screw rod and an adjustment block, the two-way screw rod and the inner wall of the fixing seat are connected and rotated through, and both ends of the two-way screw rod are threadedly connected. There are two adjustment blocks, and the adjustment blocks are fixedly connected with corresponding limit seats.

By adopting the above technical solution, the two-way screw rod is rotated so that the two-way screw rod drives the two adjustment blocks to move, so that the position of the sliding push-pull plate on the limit seat can be adjusted.

As an alternative to the technical solution of the present application, the middle part of the transmission gear shaft is connected and fixed with two bevel gears in a symmetrical structure; the output end of the motor is connected and fixed with an incomplete bevel gear, and the incomplete bevel The gear meshes with the bevel gear to set the transmission.

By adopting the above technical solution, the motor drives the connected incomplete bevel gear to rotate. At this time, the incomplete bevel gear will mesh with the two bevel gears for transmission, thereby driving the transmission gear shaft connected with the two bevel gears to reciprocate forward and backward. .

As an alternative to the technical solution of the present application, a slider is connected and fixed at one end of the push-pull plate; a limiting groove is provided on the limiting seat, and the inner wall of the limiting groove is slidingly fitted with the outer wall of the slider.

As an alternative to the technical solution of the present application, a transmission rack is connected and fixed to the inner wall at one end of the push-pull plate, and the transmission rack is engaged with the transmission gear shaft for transmission.

As an alternative to the technical solution of the present application, a pressurized friction plate is provided for sliding fit on the inner wall at the other end of the push-pull plate, and a plurality of springs are connected and fixed at one end of the pressurized friction plate located in the push-pull plate. The other end of the spring is fixedly connected to the inner wall of the push-pull plate.

As an alternative to the technical solution of this application document, the automatic pressurization mechanism includes a raised block, a worm wheel and a worm screw, the raised block is rotatably connected to the inner wall of the push-pull plate, and the outer wall of the raised block is connected to the pressurized The inner side of the friction plate is arranged in sliding contact, and one end of the protruding block is fixedly connected with a worm wheel, and the worm wheel is meshed with a worm, and the worm is rotatably connected with the inner wall of the push-pull plate.

By adopting the above-mentioned technical solution, when the push-pull plate drives the sleeve to rotate, the raised block is pressed against the pressurized friction plate at this time, so that the pressurized friction plate can be in contact with the sleeve, so that the push-pull plate can drive The sleeve is rotated.

As an alternative to the technical solution of the present application, one end of the worm is fixedly connected with an adjustment gear, and the adjustment gear is meshed with a sector gear, and the sector gear is rotatably connected to the inner wall of the push-pull plate through a pin shaft.

As an alternative to the technical solution of the present application, one end of the sector gear extends to the outside through the inner wall of the push-pull plate and is connected and fixed with a contact rod;

By adopting the above technical solution, the contact rod rotates, thereby driving the connected sector gear to rotate, thereby driving the meshed adjusting gear to rotate.

As an alternative to the technical solution of the present application, one end of the limit seat is connected and fixed with a U-shaped reversing rod, and the U-shaped reversing rod is arranged in movable contact with the contact rod.

A method for using a sleeve installation tool, comprising the following steps:

S1. When it is necessary to connect the steel bar with a sleeve during construction, the distance between the two push-pull plates can be adjusted according to the size of the sleeve. By rotating the two-way screw, the two-way screw drives the two adjustment blocks. Move, so that the distance between the two push-pull plates sliding on the limit seat can be adjusted;

S2. Then use two push-pull plates to clamp the sleeve, and then use the motor to drive the connected incomplete bevel gear to rotate. The transmission gear shaft of the bevel gear reciprocates forward and backward, thereby driving the push-pull plate connected to the meshing transmission rack to reciprocate, so that the two push-pull plates move in opposite directions respectively, so that the sleeve can be driven to rotate in one direction ;

S3. When the push-pull plate drives the sleeve to rotate, the raised block is against the pressurized friction plate at this time, so that the pressurized friction plate can be in contact with the sleeve, so that the sleeve can be driven when the push-pull plate moves. rotate;

S4. Then when the push-pull plate moves to a certain position to reset, the contact rod will touch one end of the U-shaped reversing rod at this time, so that the contact rod will rotate, thereby driving the connected sector gear to rotate, thereby driving the meshing The adjusting gear rotates, and then the adjusting gear will drive the connected worm to rotate, and then the worm will drive the meshing worm wheel to rotate, thereby driving the raised block connected to the worm wheel to rotate, so that the raised block does not contact the pressurized friction plate, at this time The pressurized friction plate will move to the inner side of the push-pull plate under the action of the spring, so that the pressurized friction plate will not be in contact with the sleeve. At this time, the sleeve will not be driven to rotate when the push-pull plate is reset;

S5. Then when the push-pull plate is reset in place, at this time, under the action of the U-shaped reversing rod, the contact rod is rotated in the opposite direction, so that the raised block is driven by the transmission to be against the pressurized friction plate, so that the pressurized The friction plate can abut against the sleeve, and then under the action of the push-pull plate, the sleeve can be continuously rotated and installed.

3. Beneficial effect

One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

1. This application has effectively solved the technical problems in the prior art due to the adoption of the technical means of the transmission gear shaft and the push-pull plate, and then realized the use of machinery to continuously rotate the sleeve, thereby realizing the installation of the sleeve, which can be greatly improved. Improve the installation efficiency of the sleeve, while reducing the effect of labor.

2. In this application, by setting an automatic pressurization mechanism on the push-pull plate, when the push-pull plate reciprocates, the automatic pressurization mechanism can realize the one-way force of the pressurized friction plate, thereby driving the sleeve to perform one-way Installation is achieved by turning, no manual adjustment is required, and it is easy to use.

3. In this application, an adjustment mechanism is provided on the fixing seat, so that the distance between the two push-pull plates can be adjusted, so that the device can be adapted to install sleeves of different thicknesses, thereby improving the practicability of the device.

Description of drawings

FIG. 1 is a schematic diagram of the overall structure of a sleeve installation tool disclosed in a preferred embodiment of the present application;

Fig. 2 is a partial cross-sectional schematic diagram of the overall structure of the sleeve installation tool disclosed in a preferred embodiment of the present application;

Fig. 3 is a partial cross-sectional schematic diagram of the structure of the fixing seat and the adjusting mechanism of the socket installation tool disclosed in a preferred embodiment of the present application;

Fig. 4 is a schematic structural diagram of a limit seat of a sleeve installation tool disclosed in a preferred embodiment of the present application;

Fig. 5 is a schematic structural diagram of the transmission gear shaft of the sleeve installation tool disclosed in a preferred embodiment of the present application;

Fig. 6 is a partial cross-sectional schematic diagram of the structure of the push-pull plate and the automatic pressurizing mechanism of the socket installation tool disclosed in a preferred embodiment of the present application;

Explanation of symbols in the figure: 1, fixed seat; 2, adjustment mechanism; 3, limit seat; 4, transmission gear shaft; 5, push-pull plate; 6, automatic pressurization mechanism; 7, motor; 201, two-way screw rod; , adjusting block; 401, bevel gear; 402, incomplete bevel gear; 501, slider; 502, transmission rack; 503, pressure friction plate; 504, spring; 301, limit groove; 302, U-shaped reversing Rod; 601, protruding block; 602, worm gear; 603, worm screw; 604, adjusting gear; 605, sector gear; 606, contact rod.

detailed description

The present application will be described in further detail below in conjunction with the accompanying drawings of the description.

Referring to Figures 1 and 2, a sleeve installation tool includes a fixed seat 1, an adjustment mechanism 2, a limit seat 3, a transmission gear shaft 4, a push-pull plate 5, an automatic pressurization mechanism 6 and a motor 7;

The fixed seat 1 is internally connected and fixed with a motor 7, and the fixed seat 1 is rotatably connected with an adjustment mechanism 2;

Two limit seats 3 are fixedly arranged on the adjustment mechanism 2;

A push-pull plate 5 is provided on the limit seat 3 for sliding fit;

The transmission gear shaft 4 is rotatably connected and arranged on the fixed seat 1, the motor 7 can drive the transmission gear shaft 4 to rotate, and the transmission gear shaft 4 drives two push-pull plates 5 to realize reciprocating movement to install the sleeve;

The push-pull plates 5 are all rotatably connected to be provided with an automatic pressurizing mechanism 6, and the automatic pressurizing mechanism 6 realizes the transformation effect on the pressure. The fixed base 1 is connected and fixedly provided with a handle.

Referring to Fig. 3, the adjustment mechanism 2 includes a two-way screw rod 201 and an adjustment block 202, the two-way screw rod 201 and the inner wall of the fixed seat 1 are connected and rotated, and the two ends of the two-way screw rod 201 are screwed to be provided with an adjustment block 202, and the adjustment block 202 is arranged It is connected and fixedly arranged with the corresponding limit seat 3. The two-way screw rod 201 realizes the adjustment of the distance between the two push-pull plates 5 .

Referring to Fig. 5, the middle part of the transmission gear shaft 4 is symmetrically connected and fixedly provided with two bevel gears 401; The incomplete bevel gear 402 realizes driving the transmission gear shaft 4 to carry out positive and negative rotation.

Referring to Fig. 4 and Fig. 6, one end of the push-pull plate 5 is connected and fixedly provided with a slider 501; The limit groove 301 makes the movement of the push-pull plate 5 more stable.

Push-pull plate 5 one end inner walls are connected and fixedly provided with drive rack 502, and the underside of a push-pull plate 5 is connected with drive rack 502, and the upper side of another push-pull plate 5 is connected with drive rack 502; The gear shaft 4 meshes with the transmission setting.

Referring to Fig. 4 and Fig. 6, the inner wall of the other end of the push-pull plate 5 is slidably provided with a pressurized friction plate 503, and one end of the pressurized friction plate 503 located in the push-pull plate 5 is connected and fixedly provided with a plurality of springs 504, and the other end of the spring 504 is connected to the push-pull plate. The inner wall of the plate 5 is connected and fixedly arranged. The spring 504 realizes the automatic reset function of the pressurized friction plate 503 .

The automatic pressurization mechanism 6 includes a protruding block 601, a worm wheel 602 and a worm screw 603. The protruding block 601 is rotatably connected to the inner wall of the push-pull plate 5. One end is fixedly connected with a worm wheel 602 , and the worm wheel 602 is meshed with a worm 603 , and the worm 603 is rotatably connected with the inner wall of the push-pull plate 5 . The protruding block 601 has the effect of pushing the pressurized friction plate 503 .

One end of the worm 603 is fixedly connected with an adjustment gear 604, and the adjustment gear 604 is engaged with a sector gear 605, and the sector gear 605 is rotatably connected with the inner wall of the push-pull plate 5 through a pin shaft.

One end of the sector gear 605 extends to the outside through the inner wall of the push-pull plate 5 and is connected and fixed with a contact rod 606; one end of the limit seat 3 is connected and fixed with a U-shaped reversing rod 302, and the U-shaped reversing rod 302 and the contact rod 606 are movable contact settings. The U-shaped reversing rod 302 realizes the function of adjusting the raised block 601 .

Referring to Fig. 1-Fig. 6, a method for using a sleeve installation tool includes the following steps:

S1. When it is necessary to connect the steel bars with sleeves during construction, the distance between the two push-pull plates 5 can be adjusted according to the size of the sleeves. By rotating the two-way screw 201, the two-way screw 201 can drive the two The adjustment block 202 moves, so that the distance between the two sliding push-pull plates 5 on the limit seat 3 can be adjusted;

S2. Then use two push-pull plates 5 to clamp the sleeve, and then use the motor 7 to drive the connected incomplete bevel gear 402 to rotate. At this time, the incomplete bevel gear 402 will be meshed with the two bevel gears 401 for transmission, thereby Drive the transmission gear shaft 4 connected with two bevel gears 401 to reciprocate forward and reverse, thereby driving the push-pull plate 5 connected to the meshed transmission rack 502 to reciprocate, so that the two push-pull plates 5 move in opposite directions respectively, thereby It can drive the sleeve to rotate in one direction;

S3. When the push-pull plate 5 drives the sleeve to rotate, the protruding block 601 abuts against the pressurized friction plate 503 at this time, so that the pressurized friction plate 503 can abut against the sleeve, so that when the push-pull plate 5 moves Can drive the sleeve to rotate;

S4, then when the push-pull plate 5 moves to a certain position to reset, the contact rod 606 will touch one end of the U-shaped reversing rod 302 at this time, so that the contact rod 606 rotates, thereby driving the connected sector gear 605 to rotate , so that it can drive the meshed adjusting gear 604 to rotate, and then the adjusting gear 604 will drive the connected worm 603 to rotate, and then the worm 603 will drive the meshed worm wheel 602 to rotate, thereby driving the protrusion 601 connected to the worm wheel 602 to rotate, so that the protrusion The block 601 is not in contact with the pressure friction plate 503. At this time, the pressure friction plate 503 will move to the inner side of the push-pull plate 5 under the action of the spring 504, so that the pressure friction plate 503 is not in contact with the sleeve. When the plate 5 is reset, the sleeve will not be driven to rotate;

S5, then when the push-pull plate 5 is reset to its place, at this time, under the action of the U-shaped reversing rod 302, the contact rod 606 is reversely rotated, so that the raised block 601 is driven against the pressurized friction plate 503 through transmission , so that the pressure friction plate 503 can abut against the sleeve, and then under the action of the push-pull plate 5, the sleeve can be continuously rotated and installed.

The implementation principle of a sleeve installation tool in the embodiment of the present application is as follows: when the steel bar needs to be connected with the sleeve during construction, the distance between the two push-pull plates 5 can be adjusted according to the size of the sleeve, and the The two-way screw rod 201 makes the two-way screw rod 201 drive the two adjustment blocks 202 to move, so that the position of the distance between the two push-pull plates 5 sliding on the limit seat 3 can be adjusted;

Then use two push-pull plates 5 to clamp the sleeve, and then use the motor 7 to drive the connected incomplete bevel gear 402 to rotate. At this time, the incomplete bevel gear 402 will mesh with the two bevel gears 401 to drive the connection. The transmission gear shaft 4 with two bevel gears 401 reciprocates forward and reverse, thereby driving the push-pull plate 5 connected to the meshed transmission rack 502 to reciprocate, so that the two push-pull plates 5 move in opposite directions respectively, thereby realizing Drive the sleeve to rotate in one direction; when the push-pull plate 5 drives the sleeve to rotate, the raised block 601 is abutted against the pressurized friction plate 503, so that the pressurized friction plate 503 can abut against the sleeve, Thereby, the sleeve can be driven to rotate when the push-pull plate 5 moves;

Then when the push-pull plate 5 moves to a certain position to reset, the contact rod 606 will touch one end of the U-shaped reversing rod 302 at this time, so that the contact rod 606 rotates, thereby driving the connected sector gear 605 to rotate, thereby It can drive the meshed adjusting gear 604 to rotate, and then the adjusting gear 604 will drive the connected worm 603 to rotate, and then the worm 603 will drive the meshed worm wheel 602 to rotate, thereby driving the raised block 601 connected to the worm wheel 602 to rotate, so that the raised block 601 is not in contact with the pressure friction plate 503. At this time, the pressure friction plate 503 will move to the inner side of the push-pull plate 5 under the action of the spring 504, so that the pressure friction plate 503 is not in contact with the sleeve. At this time, the push-pull plate 5 When resetting, the sleeve will not be driven to rotate;

Then, when the push-pull plate 5 is reset to the right position, the contact rod 606 is reversely rotated under the action of the U-shaped reversing rod 302, so that the protruding block 601 is driven against the pressure friction plate 503 by transmission, thereby This allows the pressure friction plate 503 to be in contact with the sleeve, and then under the action of the push-pull plate 5, the sleeve can be continuously rotated and installed.

The invention adopts the transmission gear shaft and the push-pull plate to realize the continuous rotation of the sleeve by machinery, thereby realizing the installation of the sleeve, which can greatly improve the installation efficiency of the sleeve and reduce the labor force at the same time. By setting an automatic pressure mechanism on the push-pull plate, when the push-pull plate reciprocates, the automatic pressure mechanism can realize the one-way force of the pressure friction plate, so that the sleeve can be driven to rotate in one direction to realize installation. No need for manual adjustment, easy to use. By providing an adjustment mechanism on the fixing seat, the distance between the two push-pull plates can be adjusted, so that the device can be suitable for installing sleeves of different thicknesses, thereby improving the practicability of the device.

The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments, and those described in the above-mentioned embodiments and description are only preferred examples of the present invention, and are not intended to limit the present invention, without departing from the spirit and scope of the present invention. Under the premise, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the claimed invention. The protection scope of the present invention is defined by the appended claims and their equivalents.

Claims (10)

1. A sleeve installation tool, including: fixed seat (1), adjustment mechanism (2), two limit seats (3), transmission gear shaft (4), two push-pull plates (5) and automatic pressurization The mechanism (6) is characterized in that: the fixed seat (1) is internally connected and fixed with a motor (7), and the fixed seat (1) is rotatably connected with an adjustment mechanism (2); Two limit seats (3) are fixedly arranged on the adjustment mechanism (2); A push-pull plate (5) is provided on the limit seat (3) for sliding fit; The transmission gear shaft (4) is rotationally connected and arranged on the fixed seat (1), the motor (7) can drive the transmission gear shaft (4) to rotate, and the transmission gear shaft (4) drives two push-pull plates (5) to realize reciprocating movement Perform the function of installing the sleeve; The push-pull plates (5) are all rotatably connected to be provided with an automatic pressurization mechanism (6), and the automatic pressurization mechanism (6) realizes the transformation effect on pressure. 2. The socket installation tool according to claim 1, characterized in that: the adjustment mechanism (2) includes a two-way screw rod (201) and an adjustment block (202), and the two-way screw rod (201) is connected with the fixing seat (1) The inner wall is connected through the rotation, and the two ends of the two-way screw rod (201) are threadedly connected with two adjustment blocks (202), and the adjustment blocks (202) are connected with the corresponding limit seats (3) Fixed setting. 3. The sleeve installation tool according to claim 1, characterized in that: two bevel gears (401) are fixedly arranged in the middle of the transmission gear shaft (4) in a symmetrical structure; The output end of the motor (7) is fixedly provided with an incomplete bevel gear (402), and the two bevel gears (401) are both engaged with the incomplete bevel gear (402) for transmission. 4. The sleeve installation tool according to claim 1, characterized in that: one end of the push-pull plate (5) is connected and fixedly provided with a slider (501); A limiting groove (301) is provided on the limiting seat (3), and the inner wall of the limiting groove (301) is arranged in sliding cooperation with the outer wall of the slider (501). 5. The sleeve installation tool according to claim 1, characterized in that: the inner wall of one end of the push-pull plate (5) is fixedly provided with a transmission rack (502), and the transmission rack (502) is connected to the transmission gear shaft (4) Mesh transmission settings. 6. The sleeve installation tool according to claim 1, characterized in that: the inner wall of the other end of the push-pull plate (5) is slidingly fitted with a pressurized friction plate (503), and the pressurized friction plate (503) is located at One end of the push-pull plate (5) is fixedly provided with a plurality of springs (504), and the other end of the springs (504) is fixedly connected with the inner wall of the push-pull plate (5). 7. The socket installation tool according to claim 6, characterized in that: the automatic pressurization mechanism (6) comprises a protruding block (601), a worm wheel (602) and a worm (603), and the protruding block (601) is arranged in rotation connection with the inner wall of the push-pull plate (5), the outer wall of the raised block (601) is set in sliding contact with the inner side of the pressurized friction plate (503), and one end of the raised block (601) is fixedly provided with a worm gear ( 602), the worm wheel (602) is meshed with a worm (603), and the worm (603) is rotatably connected to the inner wall of the push-pull plate (5). 8. The sleeve installation tool according to claim 7, characterized in that: one end of the worm (603) is fixedly connected with an adjustment gear (604), and the adjustment gear (604) is meshed with a sector gear (605) , the sector gear (605) is arranged in rotational connection with the inner wall of the push-pull plate (5) through a pin shaft. 9. The sleeve installation tool according to claim 8, characterized in that: one end of the sector gear (605) extends to the outside through the inner wall of the push-pull plate (5) and is connected and fixed with a contact rod (606); One end of the limit seat (3) is connected and fixed with a U-shaped reversing rod (302), and the U-shaped reversing rod (302) is arranged in movable contact with the contact rod (606). 10. A method for using a sleeve installation tool, characterized in that it comprises the following steps: S1. When it is necessary to connect the steel bar with a sleeve during construction, adjust the distance between the two push-pull plates (5) according to the size of the sleeve, and rotate the two-way screw rod (201) to make the two-way screw rod (201 ) drives the two adjustment blocks (202) to move, so that the distance between the two push-pull plates (5) sliding on the limit seat (3) can be adjusted; S2. Use two push-pull plates (5) to clamp the sleeve, and start the motor (7) to drive the incomplete bevel gear (402) to rotate. At this time, the incomplete bevel gear (402) is intermittently connected with the two bevel gears (401) meshing transmission, thereby driving the transmission gear shaft (4) connected with two bevel gears (401) to reciprocate forward and reverse, thereby driving the push-pull plate (5) connected to the meshing transmission rack (502) to reciprocate , so that the two push-pull plates (5) move in opposite directions, so that the sleeve can be driven to rotate in one direction; S3. When the push-pull plate (5) drives the sleeve to rotate, at this time the raised block (601) is against the pressure friction plate (503), so that the pressure friction plate (503) can abut against the sleeve , so that the sleeve can be driven to rotate when the push-pull plate (5) moves; S4, then when the push-pull plate (5) moves to a certain position to reset, the contact rod (606) will touch one end of the U-shaped reversing rod (302) at this time, so that the contact rod (606) rotates, thereby Drive the connected sector gear (605) to rotate, so as to drive the meshed adjustment gear (604) to rotate, then the adjustment gear (604) will drive the connected worm (603) to rotate, and then the worm (603) will drive the meshed worm gear (602) rotates, thereby can drive the protruding block (601) that worm gear (602) connects to rotate, make protruding block (601) not contact with pressure friction plate (503), this moment pressurization friction plate (503) will Move to the inside of the push-pull plate (5) under the action of the spring (504), so that the pressurized friction plate (503) does not contact the sleeve. At this time, the sleeve will not be driven to rotate when the push-pull plate (5) is reset. ; S5. Then when the push-pull plate (5) is reset in place, at this time, under the action of the U-shaped reversing rod (302), the contact rod (606) is reversely rotated, thereby driving the raised block (601) through transmission. Butting against the pressurized friction plate (503), so that the pressurized friction plate (503) can abut against the sleeve, and then under the action of the push-pull plate (5), the sleeve can be continuously rotated and installed.

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