Corrugated pipe auxiliary device

Abstract

The utility model relates to an auxiliary device for a corrugated pipe. The auxiliary device comprises a rack, a driving tooth and two seat bodies, the two seat bodies are connected with the rack in a sliding manner and are arranged at intervals, at least one seat body is provided with a rotatable rotating shaft, and each seat body is provided with a clamping ring; the rotating shaft is sleeved with the driving gear, the driving gear is meshed with the rack, and the driving gear is arranged in a one-way rotating mode and used for driving the two base bodies to be close to each other, and a transmission part is arranged between the driving gear and the rotating shaft, so that when the rotating shaft rotates forwards, the driving gear can be driven by the transmission part to rotate, and when the rotating shaft rotates reversely, the driving gear can rotate relative to the driving gear. The scheme is good in practicability, easy and convenient to operate, small in overall structure occupied space, suitable for small-space operation and good in flexibility.

Description

Technical Field

[0001] The utility model relates to the technical field of bellows disassembly and assembly equipment, in particular to a bellows auxiliary device. Background Art

[0002] Corrugated pipes are widely used in urban drainage projects. When installing the corrugated pipe, the socket and splice tightening requires the cooperation of two people, which is inefficient and laborious. The drainage construction process is multi-step and the construction period is tight. The installation time of the corrugated pipe is limited. If the corrugated pipe is not installed in time, it will affect the construction period.

[0003] In order to improve the installation efficiency of the corrugated pipe, a corrugated pipe tensioning device is generally used. For example, patent CN 210415569U discloses a butt-jointed tensioning device for double-walled corrugated pipes, which can drive two fixed rings to move closer to each other by rotating two T-shaped screws clockwise, and drive the two butt-jointed corrugated pipes to move closer to each other through the fixed rings, making tensioning convenient.

[0004] However, in order to prevent the fixed ring from rotating with the T-screw in this patent, the operator needs to hold the two T-screws with both hands respectively, which is relatively cumbersome to operate, and the corresponding support plate occupies a large space and is not convenient for use in narrow spaces. Utility Model Content

[0005] In view of this, it is necessary to provide a bellows auxiliary device to solve the technical problems that the bellows tensioning device in the prior art is relatively cumbersome to operate, occupies a large space, and is not convenient for use in narrow spaces.

[0006] The utility model provides a bellows auxiliary device, which comprises:

[0007] rack;

[0008] Two seats are slidably connected to the rack and are spaced apart, at least one of the seats is provided with a rotatable shaft, and each of the seats is provided with a snap ring; and,

[0009] The driving tooth is sleeved on the rotating shaft, meshed with the rack, and arranged to rotate in one direction, so as to drive the two seat bodies to approach each other. A transmission member is provided between the driving tooth and the rotating shaft, so that when the rotating shaft rotates forward, the driving tooth can be driven to rotate through the transmission member, and when the rotating shaft rotates reversely, it can rotate relative to the driving tooth.

[0010] Optionally, a pawl groove is provided on the inner wall of the driving tooth, the transmission member is a pawl mounted on the rotating shaft, and the pawl tooth extends along a tangent of the rotating shaft and corresponds to the pawl groove.

[0011] Optionally, the movably arranged seat body is provided with a guide channel and a accommodating cavity, wherein the guide channel is for the rack to pass through and is connected to the accommodating cavity, wherein the rotating shaft is installed on the inner wall of the accommodating cavity, and a stopper is provided in the accommodating cavity, and the stopper cooperates with the outer teeth of the driving tooth to allow the driving tooth to rotate in one direction.

[0012] Optionally, the outer teeth of the driving tooth are ratchet teeth, and the stopping member is a stopping arm, which is installed on the inner wall of the accommodating cavity, and one end of the stopping arm extends into the gap of the outer ratchet teeth of the driving tooth and corresponds to the ratchet teeth, so that the driving tooth can rotate in one direction.

[0013] Optionally, one end of the stopping arm away from the driving tooth is rotatably installed on the inner wall of the accommodating cavity, and a return spring is provided between the inner wall of the accommodating cavity, and the return spring is used to reset the end of the stopping arm close to the driving tooth to extend into the gap of the ratchet tooth, wherein the side wall of the accommodating cavity corresponding to the stopping arm is provided with a connecting port connected to the outside world.

[0014] Optionally, the bellows auxiliary device further comprises a pressing rod, one end of which is connected to the end of the stopping arm away from the driving tooth, and the other end of which extends out of the accommodating cavity from the communicating port.

[0015] Optionally, the accommodating cavity is provided with an escape opening communicating with the outside, and the escape opening corresponds to the rotating shaft;

[0016] The bellows auxiliary device also includes a driving rod, one end of which is fixedly connected to the rotating shaft, and the other end of which extends out of the accommodating cavity from the avoidance opening.

[0017] Optionally, the driving rod is a telescopic rod.

[0018] Optionally, the driving rod comprises an outer tube and an inner rod, one end of the outer tube is fixedly connected to the rotating shaft, and a plurality of through holes are provided at intervals along its own axial direction, one end of the inner rod extends into the outer tube, and a plurality of screw holes are provided at intervals along its own axial direction, and the other end extends out of the accommodating cavity from the avoidance port;

[0019] The bellows auxiliary device also includes an adjusting screw, which can be selectively passed through any of the through holes and screwed to the screw hole, so that the length of the driving rod can be adjusted.

[0020] Optionally, the two seat bodies are both movable along the extension direction of the rack and are respectively provided with a rotating shaft, and the driving teeth are provided with two groups, and the two groups of driving teeth correspond to the two seat bodies one by one.

[0021] Compared with the prior art, in the bellows auxiliary device provided by the utility model, the clamping rings of the two seats are firstly clamped to the outer walls of the two bellows respectively, and then the rotating shaft on one seat is driven to rotate along the direction of the one-way rotation of the driving teeth first, so as to synchronously drive the corresponding driving teeth to rotate in one direction through the transmission member, so as to enable the two seats to approach each other, realize the tightening of the bellows, and improve the efficiency of the bellows socket. In addition, if the distance between the two bellows is slightly longer, under the action of the transmission member, the rotating shaft can be rotated in the opposite direction so that the rotating shaft returns to the initial position without being affected by the driving teeth; and after the rotating shaft returns to the initial position, the rotating shaft is rotated again along the one-way rotation direction of the driving teeth to drive the driving teeth to rotate in one direction, so as to tighten the two bellows again, which has good practicality and is easy to operate. At the same time, the overall structure occupies less space, is suitable for small space operations, and has good flexibility.

[0022] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the preferred embodiment of the utility model is described in detail as follows with the accompanying drawings. The specific implementation method of the utility model is given in detail by the following embodiments and their drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0024] Figure 1 A schematic structural diagram of an embodiment of a bellows auxiliary device provided by the utility model;

[0025] Figure 2 for Figure 1 Schematic diagram of the partial structure of the middle bellows auxiliary device;

[0026] Figure 3 for Figure 2 A partial enlarged schematic diagram of the central shaft and driving gear;

[0027] Figure 4 for Figure 2 A cross-sectional view of the middle seat body;

[0028] Figure 5 for Figure 2 A schematic diagram of the structure of the middle stopper;

[0029] Figure 6 for Figure 1 Partial structural cross-sectional view of the bellows auxiliary device.

[0030] Description of reference numerals:

[0031] 100. Bellows auxiliary device; 1. Rack; 2. Seat; 2a. Guide channel; 2b. Accommodating chamber; 2c. Communication port; 2d. Avoidance port; 21. Rotating shaft; 22. Snap ring; 3. Driving tooth; 3a. Ratchet groove; 31. Transmission member; 311. Ratchet; 32. Ratchet; 4. Stop member; 41. Stop arm; 42. Rotating spring; 5. Pressing rod; 6. Driving rod; 61. Outer cylinder; 61a. Through hole; 62. Inner rod; 62a. Screw hole; 63. Adjusting screw. DETAILED DESCRIPTION

[0032] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0033] See also Figures 1 to 6 The bellows auxiliary device 100 includes a rack 1, a driving tooth 3 and two seats 2; the two seats 2 are slidably connected to the rack 1 and are arranged at intervals, at least one seat 2 is provided with a rotatable shaft 21, and each seat is provided with a snap ring 22; the driving tooth 3 is sleeved on the shaft 21, meshed with the rack 1, and unidirectionally rotated to drive the two seats 2 to approach each other, and a transmission member 31 is provided between the driving tooth 3 and the shaft 21, so that when the shaft 21 rotates forward, the driving tooth 3 can be driven to rotate through the transmission member 31, and when the shaft rotates reversely, it can rotate relative to the driving tooth 3. Specifically, the transmission member 31 enables the shaft 21 to drive the driving tooth 3 to rotate synchronously when it rotates in the direction of unidirectional rotation of the driving tooth 3 (that is, when the shaft 21 rotates forward), and enables the shaft 21 to rotate reversely relative to the driving tooth 3 (that is, when the shaft 21 rotates reversely).

[0034] In the bellows auxiliary device 100 provided by the utility model, the clamping rings 22 of the two seat bodies 2 are firstly clamped to the outer walls of the two bellows respectively, and then the rotating shaft 21 on the seat body 2 is driven to rotate along the direction of the unidirectional rotation of the driving teeth 3 first, so as to synchronously drive the corresponding driving teeth 3 to rotate unidirectionally through the transmission member 31, so that the two seat bodies 2 can be close to each other, so as to realize the tightening of the bellows and improve the efficiency of the bellows socket. In addition, if the distance between the two bellows is slightly longer, under the action of the transmission member 31, the rotating shaft 21 can be rotated in the opposite direction, so that the rotating shaft 21 returns to the initial position without being affected by the driving teeth 3; and after the rotating shaft 21 returns to the initial position, the rotating shaft 21 is rotated again along the unidirectional rotation direction of the driving teeth 3 to drive the driving teeth 3 to rotate unidirectionally, so as to tighten the two bellows again, which has good practicality and is easy to operate. At the same time, the overall structure occupies less space, is suitable for small space operations, and has good flexibility.

[0035] It should be noted that the positive rotation direction of the rotating shaft 21 can be clockwise or counterclockwise, which is set according to the needs. Specifically, in this embodiment, the unidirectional rotation direction of the driving tooth 3 is set to the clockwise direction, and correspondingly, the positive rotation direction of the rotating shaft 21 is the clockwise direction, and the reverse rotation direction of the rotating shaft 21 is the counterclockwise direction. In addition, in one embodiment, the clamping ring 22 is two half rings, and is fastened by a screw connection to achieve the fixation of the corrugated tube. In another embodiment, the clamping ring 22 can also be set as a steel cable to tighten the corrugated tube.

[0036] For further information, see Figure 2 and Figure 3 , the inner wall of the driving tooth 3 is provided with a ratchet 311 groove 3a, the transmission member 31 is a ratchet 311 installed on the rotating shaft 21, and the ratchet 311 tooth extends along the tangent of the rotating shaft 21 and corresponds to the ratchet 311 groove 3a. In this embodiment, the ratchet 311 cooperates with the ratchet 311 groove 3a to realize that the rotating shaft 21 can rotate unidirectionally relative to the driving tooth 3, that is, when the rotating shaft 21 rotates in the direction of the unidirectional rotation of the driving tooth 3, it can drive the driving tooth 3 to rotate synchronously, and when the rotating shaft 21 rotates in the reverse direction of the unidirectional rotation of the driving tooth 3, it can rotate in the opposite direction relative to the driving tooth 3. The structure is simple and reliable.

[0037] For further information, see Figure 2 and Figure 4 The movable seat body 2 is provided with a guide channel 2a and a receiving chamber 2b, wherein the guide channel 2a is for the rack 1 to pass through and is connected to the receiving chamber 2b, wherein the rotating shaft 21 is installed on the inner wall of the receiving chamber 2b, and a stopper 4 is provided in the receiving chamber 2b, and the stopper 4 cooperates with the outer teeth of the driving teeth 3 so that the driving teeth 3 can rotate in one direction. In this embodiment, the driving teeth 3 can rotate in one direction by the stopper 4, and the stopper 4 is arranged in the receiving chamber 2b to avoid interference from foreign objects and improve stability.

[0038] Furthermore, the outer teeth of the driving teeth 3 are ratchet teeth 32, and the stopper 4 is a stopper arm 41. The stopper arm 41 is installed on the inner wall of the accommodating chamber 2b, and one end of the stopper arm 41 extends into the gap of the outer ratchet teeth 32 of the driving teeth 3, and corresponds to the ratchet teeth 32, so that the driving teeth 3 can rotate in one direction. In this embodiment, the transmission member 31 is set as a ratchet tooth 32 to correspond to the ratchet teeth 32 outside the driving teeth 3 to achieve the one-way rotation of the driving teeth 3. At the same time, the driving teeth 3 can also be engaged with the rack 1 to ensure that the driving cylinder can drive the seat body 2 to approach the other seat body 2 when rotating. Specifically, in this embodiment, one side of the ratchet teeth 32 of the driving teeth 3 is an arc surface, and the other side is a plane. The end of the stopper arm 41 extending into the gap of the ratchet teeth 32 is correspondingly provided with an arc surface and a rectangular surface to ensure the one-way rotation of the driving teeth 3.

[0039] Specifically, see Figure 5The end of the stop arm 41 away from the driving tooth 3 is rotatably mounted on the inner wall of the accommodating chamber 2b, and a return spring 42 is provided between the inner wall of the accommodating chamber 2b, and the return spring 42 is used to reset the end of the stop arm 41 close to the driving tooth 3 to the gap extending into the ratchet tooth 32, wherein the side wall of the accommodating chamber 2b corresponding to the stop arm 41 is provided with a connecting port 2d2c connected to the outside. In this embodiment, when it is necessary to move the seat body 2 to the initial position, a certain external force is applied to rotate the stop arm 41 to compress the return spring 42, so that the stop arm 41 is separated from the gap of the ratchet tooth 32, and then the seat body 2 is moved in the reverse direction. After the seat body 2 moves to the initial position, the stop arm 41 is released, and the stop arm 41 is reset to the position extending into the gap of the ratchet tooth 32 under the drive of the return spring 42, so as to ensure the unidirectional rotation of the drive cylinder. It should be noted that the elastic force of the return spring 42 driving the stopping arm 41 to stop the ratchet 32 ​​from rotating in the reverse direction is greater than the friction force of the ratchet pawl 311 on the groove of the ratchet 32 ​​when the rotating shaft 21 rotates in the reverse direction.

[0040] Specifically, the bellows auxiliary device 100 further includes a pressing rod 5, one end of which is connected to the end of the stop arm 41 away from the driving tooth 3, and the other end of which extends out of the accommodating cavity 2b from the connecting opening 2d2c. In this way, the operator can press down the pressing rod 5 to drive the stop arm 41 out of the gap of the ratchet tooth 32, thereby improving convenience.

[0041] Furthermore, the accommodating chamber 2b is provided with an escape opening connected to the outside, and the escape opening corresponds to the rotating shaft 21; the bellows auxiliary device 100 also includes a driving rod 6, one end of which is fixedly connected to the rotating shaft 21, and the other end extends out of the accommodating chamber 2b from the escape opening. In this embodiment, the operator can rotate the driving rod 6 to drive the rotating shaft 21 to rotate synchronously, thereby improving convenience. Specifically, the driving rod 6 is a telescopic rod. In this way, the length of the driving rod 6 can be flexibly adjusted, and the length of the driving rod 6 can be lengthened according to actual conditions, so that the operator can push and pull, saving manpower.

[0042] Specifically, see Figure 6 The driving rod 6 includes an outer tube 61 and an inner rod 62. One end of the outer tube 61 is fixedly connected to the rotating shaft 21, and a plurality of through holes 61a are provided at intervals along its own axial direction. One end of the inner rod 62 extends into the outer tube 61, and a plurality of screw holes 62a are provided at intervals along its own axial direction, and the other end extends out of the accommodating cavity 2b from the avoidance port. The bellows auxiliary device 100 also includes an adjusting screw 63, which can be selectively passed through any through hole 61a and screwed to the screw hole 62a, so that the length of the driving rod 6 can be adjusted. In this embodiment, the overall length of the driving rod 6 can be adjusted according to the position of the adjusting screw 63 on the outer tube 61, the operation is simple and convenient, and the structure is stable and reliable.

[0043] Furthermore, both the two seats 2 can move along the extension direction of the rack 1, and are respectively provided with a rotating shaft 21, and two groups of driving teeth 3 are provided, and the two groups of driving teeth 3 correspond to the two seats 2 one by one. Thus, in this embodiment, when the rotating shaft 21 of the left seat 2 is rotated in the direction corresponding to the unidirectional rotation of the driving teeth 3, the left seat 2 can approach the right seat 2, thereby tightening the two bellows. When the rotating shaft 21 of the right seat 2 is rotated in the direction corresponding to the unidirectional rotation of the driving teeth 3, the right seat 2 can be away from the left seat 2, so that the two bellows are separated, so as to facilitate the disassembly of the docked bellows, which is more practical.

[0044] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A bellows auxiliary device, characterized in that: It includes: rack; Two seats are slidably connected to the rack and are spaced apart, at least one of the seats is provided with a rotatable shaft, and each of the seats is provided with a snap ring; and, The driving tooth is sleeved on the rotating shaft, meshed with the rack, and arranged to rotate in one direction, so as to drive the two seat bodies to approach each other. A transmission member is provided between the driving tooth and the rotating shaft, so that when the rotating shaft rotates forward, the driving tooth can be driven to rotate through the transmission member, and when the rotating shaft rotates reversely, it can rotate relative to the driving tooth.

2. The bellows auxiliary device according to claim 1, characterized in that: The inner wall of the driving tooth is provided with a pawl groove, the transmission member is a pawl installed on the rotating shaft, and the pawl teeth extend along the tangent of the rotating shaft and correspond to the pawl groove.

3. The bellows auxiliary device according to claim 1, characterized in that: The movably arranged seat body is provided with a guide channel and a receiving cavity, wherein the guide channel is for the rack to pass through and is connected to the receiving cavity, wherein the rotating shaft is installed on the inner wall of the receiving cavity, and a stopper is provided in the receiving cavity, and the stopper cooperates with the outer teeth of the driving teeth to enable the driving teeth to rotate in one direction.

4. The bellows auxiliary device according to claim 3, characterized in that: The outer teeth of the driving teeth are ratchet teeth, and the stopping member is a stopping arm, which is installed on the inner wall of the accommodating cavity, and one end of the stopping arm extends into the gap of the ratchet teeth of the driving teeth and corresponds to the ratchet teeth, so that the driving teeth can rotate in one direction.

5. The bellows auxiliary device according to claim 4, characterized in that: One end of the stopping arm away from the driving tooth is rotatably mounted on the inner wall of the accommodating cavity, and a swing spring is provided between the inner wall of the accommodating cavity, and the swing spring is used to reset the end of the stopping arm close to the driving tooth to extend into the gap of the ratchet tooth, wherein the side wall of the accommodating cavity corresponding to the stopping arm is provided with a connecting port connected to the outside world.

6. The bellows auxiliary device according to claim 5, characterized in that: The bellows auxiliary device also includes a pressing rod, one end of which is connected to the end of the blocking arm away from the driving tooth, and the other end of which extends out of the communication port into the accommodating cavity.

7. The bellows auxiliary device according to claim 3, characterized in that: The accommodating cavity is provided with an escape opening communicating with the outside, and the escape opening corresponds to the rotating shaft; The bellows auxiliary device also includes a driving rod, one end of which is fixedly connected to the rotating shaft, and the other end of which extends out of the accommodating cavity from the avoidance opening.

8. The bellows auxiliary device according to claim 7, characterized in that: The driving rod is a telescopic rod.

9. The bellows auxiliary device according to claim 8, characterized in that: The driving rod comprises an outer tube and an inner rod, one end of the outer tube is fixedly connected to the rotating shaft, and a plurality of through holes are provided at intervals along its axial direction, one end of the inner rod extends into the outer tube, and a plurality of screw holes are provided at intervals along its axial direction, and the other end extends out of the accommodating cavity from the avoidance port; The bellows auxiliary device also includes an adjusting screw, which can be selectively passed through any of the through holes and screwed to the screw hole, so that the length of the driving rod can be adjusted.

10. The bellows auxiliary device according to claim 1, characterized in that: The two seat bodies are both movable along the extension direction of the rack and are respectively provided with a rotating shaft. The driving teeth are provided with two groups, and the two groups of driving teeth correspond to the two seat bodies one by one.

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