Combination device for shrinking length of corrugated pipe

Abstract

The utility model discloses a combined device for shrinking the length of a corrugated pipe, and belongs to the technical field of railway vehicle electrical component installation and maintenance auxiliary tools. The device is provided with a base; the clamp is arranged on the base and used for clamping the corrugated pipe, and the clamp comprises a fixed clamping ring fixed in position and a movable clamping ring connected with the base in a sliding mode; the transmission mechanism is provided with a transmission rod which is connected with the movable clamping ring and the fixed clamping ring and drives the movable clamping ring to move relative to the fixed clamping ring to contract the corrugated pipe, and the end of the transmission rod is connected with a driver used for providing a power source with the transmission rod; the device effectively solves the problem of damage to a wire harness or a pipeline caused by fixing forms such as friction between a medium such as the internal wire harness and a pipe wall by using an adhesive tape auxiliary material, can effectively, accurately and stably shrink the corrugated pipe, simultaneously ensures the integrity and functionality of the corrugated pipe, and has the advantages of simple structure, convenience in use, low cost and the like. The labor intensity of an operator and the material loss are reduced, and the product quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of installation and maintenance auxiliary tooling for rail vehicle electrical components, in particular to a combined device for shrinking the length of a bellows. Background Art

[0002] As a common pipe connection element, bellows are widely used in transmission systems such as cable routing and various fluids. During use, the length of the bellows may change due to various reasons, such as temperature changes and pressure changes. When installing, repairing or troubleshooting the wiring harness of vehicle equipment, it is necessary to disassemble the connector and the internal connection of the bellows. Most of the original wiring harnesses have a small margin inside the pipe diameter. If related operations are performed, the short wiring harness inside the wire pipe will affect the process operation space, and the wiring harness inside the equipment needs to be moved, which brings great difficulties to the operator. The existing operation method is: by disassembling the end connector of the corrugated pipe, pushing one end of the corrugated pipe forward and shrinking it, and fixing the internal wiring harness and pipe with tape auxiliary materials to form a shorter distance operation space. This operation not only causes certain stress on the wiring harness and easily damages the wiring harness insulation outer sheath, but also has the problem of cracks at the end of the corrugated pipe due to uneven force. If the corrugated pipe is damaged, the connector and the wiring harness need to be separated before the pipe can be pulled out, which brings great difficulties to the operation and is time-consuming and labor-intensive.

[0003] Therefore, how to provide a combined device for shrinking the length of the bellows is of great significance for solving the above problems. Utility Model Content

[0004] The purpose of the utility model is to overcome the defects of the prior art and provide a combined device for shrinking the length of a corrugated tube, which is used to solve the problem in the prior art that adhesive tape auxiliary materials are used to fix internal wire harnesses and other media, causing friction between the wire harnesses and the tube wall, which easily damages the insulating outer skin of the wire harness and the end of the corrugated tube.

[0005] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0006] The utility model discloses a combined device for shrinking the length of a bellows, comprising:

[0007] base;

[0008] a clamp mounted on the base for clamping the corrugated pipe, the clamp comprising a fixed clamp ring with a fixed position and a movable clamp ring slidably connected to the base; and

[0009] The transmission mechanism has a transmission rod that connects the movable clamp ring and the fixed clamp ring and drives the movable clamp ring to move relative to the fixed clamp ring to contract the bellows. The end of the transmission rod is connected to a driver for providing a power source to the transmission rod.

[0010] Furthermore, an upper baffle is connected to the top of the base, and a slide groove is formed on the upper baffle. The slide groove is arranged parallel to the slide opened on the base. The clamp also includes a fixed seat connected to one end of the slide and a movable seat slidably connected to the slide. The fixed seat passes through the slide groove and is connected to the fixed clamp ring, and the movable seat passes through the slide groove and is connected to the movable clamp ring.

[0011] Furthermore, a groove is provided inside the base at the end of the slide, and the groove is connected to the positioning block provided at the lower part of the fixed seat. A connecting seat is formed at one end of the outside of the base, and the connecting seat is connected to the limit block. A positioning hole is provided on the side wall of the base that passes through the positioning block and the limit block, and the positioning hole is connected to a connecting pin rod by plugging and unplugging.

[0012] Furthermore, the base also includes a protective cover plate that can be covered on the outside of the clamp. One side of the protective cover plate is rotationally connected to the upper baffle through a hinge pin, and the other end can be locked with or disengaged from the upper baffle through a lock.

[0013] Furthermore, the transmission rod is a lead screw, one end of the transmission rod is rotatably connected to the fixed seat with a mounting hole, the transmission rod is equipped with a limit spring for preventing the transmission rod from detaching from the fixed seat, and the movable seat is provided with a screw hole for spiral transmission with the transmission rod.

[0014] Furthermore, the fixed clamp ring and the movable clamp ring both include a lower ring body and an upper ring body, one side of the upper ring body is connected to the lower ring body through a pin, and the other side is connected to the lower ring body through a locking pin.

[0015] Furthermore, the driver is a manual rotating arm, and a socket is provided at one end of the transmission rod, and the socket is plug-in connected to the manual rotating arm.

[0016] Furthermore, the driver is a motor connected to the base, and the power output shaft of the motor is selectively connected to the protrusion at the end of the transmission rod through a transmission shaft.

[0017] Furthermore, it also includes a base split, one end of the base split is connected to a connecting seat formed at one end of the outside of the base, and a connecting pin rod passes through the base split and the connecting seat.

[0018] Furthermore, the base split is formed with the connecting seat away from the base end, and the adjacent base splits are connected through the connecting seat.

[0019] In the above technical solution, the utility model provides a combined device for shrinking the length of a bellows, which has the following beneficial effects:

[0020] The combined device for shrinking the length of a corrugated pipe designed in the utility model is different from the prior art which uses adhesive tape as an auxiliary material to fix the internal wiring harness or other media to the pipe wall to form friction, thereby eliminating the damage caused to the wiring harness or pipe. It changes the phenomenon of cumbersome operation, time-consuming and labor-intensive operation.

[0021] The device uses a clamp and a transmission mechanism to mechanically shrink the bellows, effectively, accurately, and stably shrinking the length of the bellows while ensuring the integrity and functionality of the bellows. The use of this device significantly improves the quality and efficiency of processes requiring bellows shrinkage, increasing work efficiency by over 60% and saving material loss by over 5%. This reduces operator labor intensity, reduces material loss, and improves product quality.

[0022] In addition, when a longer distance of retraction is required, the device can extend the use length of the base by connecting multiple bases at the ends, which can solve the purpose of long-distance wire tube retraction and expand the scope of use of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0024] Figure 1 This is an axonometric view of the combined device for shrinking the length of a bellows disclosed in the utility model;

[0025] Figure 2 This is an axonometric drawing of the combined device for shrinking the length of a bellows disclosed in the present utility model from another perspective;

[0026] Figure 3 This is an axonometric view of the combined device for shrinking the length of a bellows disclosed in the present utility model after removing the protective cover plate;

[0027] Figure 4 This is a schematic diagram of the clamp structure of the combined device for shrinking the length of the bellows disclosed in the utility model;

[0028] Figure 5 This is a schematic diagram of the base structure of the combined device for shrinking the length of the bellows disclosed in the utility model;

[0029] Figure 6 This is a schematic diagram of the limit baffle structure of the combined device for shrinking the length of the bellows disclosed in the utility model;

[0030] Figure 7 This is a schematic diagram of the structure of the fixing seat of the combined device for shrinking the length of the bellows disclosed in the utility model;

[0031] Figure 8 This is a schematic diagram of the structure of the movable seat of the combined device for shrinking the length of the bellows disclosed in the utility model;

[0032] Figure 9 This is a schematic diagram of the transmission rod structure of the combined device for shrinking the length of the bellows disclosed in the utility model;

[0033] Figure 10 This is a schematic diagram of the manual rotating arm structure of the combined device for shrinking the length of the bellows disclosed in the utility model;

[0034] Figure 11 This is a schematic diagram of the transmission shaft structure of the combined device for shrinking the length of the bellows disclosed in the utility model;

[0035] Figure 12 The utility model is a schematic diagram of the split state of the combined device for shrinking the length of the bellows and the hanging base.

[0036] Description of reference numerals:

[0037] Base 10; base split 10a; upper baffle 11; groove 12; limit block 13; protective cover plate 14; butterfly nut 15; hinge pin 16; connecting pin rod 17; connecting seat 18;

[0038] Clamp 20; fixed clamp ring 21; fixed seat 22; movable clamp ring 23; movable seat 24; upper ring body 25; pin 26; locking pin 27;

[0039] Transmission mechanism 30; transmission rod 31; limiting spring 32;

[0040] Manual rotating arm 40;

[0041] Motor 50; Transmission shaft 51. DETAILED DESCRIPTION

[0042] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0043] See also Figure 1-4 As shown;

[0044] The utility model discloses a combined device for shrinking the length of a corrugated pipe, comprising:

[0045] A base 10, a clamp 20 mounted on the base 10 for clamping the corrugated pipe, the clamp 20 comprising a fixed clamp ring 21 and a movable clamp ring 23 slidably connected to the base 10; and

[0046] The transmission mechanism 30 includes a transmission rod 31 that connects the movable clamping ring 23 and the fixed clamping ring 21 and drives the movable clamping ring 23 to move relative to the fixed clamping ring 21 to contract the bellows. The end of the transmission rod 31 is connected to a driver for providing a power source to the transmission rod 31. This structure cooperates with the clamp 20 and the transmission mechanism 30 to effectively and accurately contract the length of the bellows while ensuring the integrity and functionality of the bellows.

[0047] See also Figure 3 As shown:

[0048] Preferably, an upper baffle 11 is connected to the top of the base 10, and the upper baffle 11 is formed with a slide groove, which is arranged parallel to the slide opened by the base 10. The clamp 20 also includes a fixed seat 22 connected to one end of the slide and a movable seat 24 slidably connected to the slide. The fixed seat 22 passes through the slide groove and is connected to the fixed clamp ring 21, and the movable seat 24 passes through the slide groove and is connected to the movable clamp ring 23. In this structure, the base 10 isolates the fixed clamp ring 21 and the movable clamp ring 23 of the clamp 20 from the outside of the base 10 through the upper baffle 11, and isolates the transmission part of the clamp 20 from the inside of the base 10, so as to avoid accidental damage to the bellows caused by contact between the transmission part of the clamp 20 and the bellows when the bellows contracts;

[0049] Lieutenant General Figure 4 、 5 As shown:

[0050] Preferably, a groove 12 is provided inside the base 10 at the end of the slide, and the groove 12 is connected to the positioning block provided at the lower part of the fixed seat 22. When assembled, the positioning block can be inserted into the groove 12. A connecting seat 18 is formed at one end of the outside of the base 10, and the connecting seat 18 is connected to the limited stopper 13. The limited stopper 13 prevents the moving seat 24 from leaving the base 10. A positioning hole is provided on the side wall of the base 10 that passes through the positioning block and the limited stopper 13. The positioning hole is plugged and connected with a connecting pin rod 17 (such as Figure 3 When in use, the positioning block and the limit stopper 13 can be quickly disassembled by disassembling the connecting pin 17.

[0051] See also Figure 1 、 2 As shown:

[0052] Preferably, the base 10 also includes a protective cover plate 14 that can be arranged on the outside of the clamp 20. One side of the protective cover plate 14 is rotatably connected to the upper baffle 11 by a hinge pin 16, and the other end can be locked or disengaged with the upper baffle 11 by a lock buckle. The lock buckle includes a screw connected to the protective cover plate 14 and a butterfly nut 15 threadedly connected to the screw. The side of the upper baffle 11 is provided with a lock groove that is locked with the screw. Of course, the lock buckle can also be other locking mechanisms in the prior art that can be locked with the lock groove. In this structure, the bellows on the clamp 20 can be effectively limited by the protective cover plate 14 to prevent the bellows pipeline from deforming when shrinking. The upper baffle 11 and the protective cover plate 14 can be made of transparent plastic material. A dimension line can be set at the edge of the upper baffle 11 or the protective cover plate 14 to facilitate observation of the contraction length of the bellows.

[0053] join Figure 3 、 4 , as shown in 9:

[0054] Preferably, the transmission rod 31 is a lead screw, and one end of the transmission rod 31 is rotatably connected to the fixed seat 22 with a mounting hole. The transmission rod 31 is equipped with a limit spring 32 for preventing the transmission rod 31 from detaching from the fixed seat 22. The movable seat 24 is provided with a screw hole for spiral transmission with the transmission rod 31. When in use, the transmission rod 31 rotates clockwise and counterclockwise to drive the movable seat 24 to drive the movable clamp ring 23 to move back and forth.

[0055] See also Figure 4 As shown:

[0056] Preferably, the fixed clamp ring 21 and the movable clamp ring 23 both include a lower ring body and an upper ring body 25. One side of the upper ring body 25 is connected to the lower ring body through a pin shaft 26, and the other side is connected to the lower ring body through a locking pin 27. The locking pin 27 is provided with an external thread and can be threadedly connected to the connecting hole on the lower ring body. In this structure, the fixed clamp ring 21 and the movable clamp ring 23 of the clamp 20 are surrounded by the upper ring body 25 and the lower ring body to form a closed annular structure to clamp the bellows, and the movable clamp ring 23 is driven to move relative to the fixed clamp ring 21 to shrink the bellows. When in use, the locking pin 27 is taken out, and the upper ring body 25 is moved to rotate around the pin shaft 26. The fixed clamp ring 21 and the movable clamp ring 23 are in an open state. After the bellows is put in, the upper ring body 25 is buckled and connected to the lower ring body through the locking pin 27, thereby clamping the bellows.

[0057] See also Figure 9 、 10 As shown:

[0058] Preferably, the driver is a manual rotating arm 40, and a socket is provided at one end of the transmission rod 31, and the socket is plugged and connected to the manual rotating arm 40. When in use, the manual rotating arm 40 is manually driven to drive the transmission rod 31 to rotate. The structure is simple and easy to assemble.

[0059] See also Figure 1 、 2 As shown:

[0060] Preferably, the driver is a motor 50 connected to the base 10, and the power output shaft of the motor 50 is selectively connected to the protrusion at the end of the transmission rod 31 through the transmission shaft 51. When in use, the motor 50 provides driving force to drive the transmission rod 31 to rotate, which saves time and effort and is conducive to improving work efficiency. The transmission shaft 51 and the transmission rod 31 are fixedly connected and can be detachably assembled. According to usage requirements, the motor 50 and the transmission rod 31 can be selectively connected or disconnected through the transmission shaft 51, thereby realizing manual and electric switching, which is convenient to use.

[0061] See also Figure 12 As shown:

[0062] The combined device also includes a base split 10a, which has a structure basically the same as the base 10, except that a slot is provided at one end of the base split 10a, which is connected to a connecting seat 18 formed at one end of the outside of the base 10, and a connecting pin 17 passes through the base split 10a and the connecting seat 18, so that the base 10 is connected to the base split 10a, thereby extending the usable length of the base 10.

[0063] A connecting seat 18 is formed at the end of the base split 10a away from the base 10. The adjacent base splits 10a are connected through the connecting seat 18 on the base split 10a, so that the usable length of the base 10 can be further extended. At the same time, there can be multiple transmission rods 31, which are connected in series in sequence to lengthen the transmission structure as a whole. Of course, the transmission rod 31 can also be an integrated mechanism. When assembling multiple base splits 10a, transmission rods of different lengths can be replaced to match the base splits 10a.

[0064] In the above technical solution, the utility model provides a combined device for shrinking the length of a bellows, and the method of use is as follows:

[0065] When the bellows needs to be contracted, open the two butterfly nuts 15, flip the protective cover plate 14 upward, then open the upper ring body 25 of the clamp 20, put the part of the bellows that needs to be contracted into the device, buckle the upper ring body 25 back, tighten the locking pins 27, and tighten the protective cover plate 14 with the butterfly nuts 15;

[0066] When the bellows needs to be manually retracted, the manual arm 40 is rotated. At this time, the movable clamp ring 23 is moved to retract the bellows. The bellows is accurately retracted according to the retraction requirements. After the corresponding work is completed, the device is disassembled in the reverse order of the installation to release the bellows. It should be noted that if manual operation is used, the motor 50 and the transmission rod 31 do not need to be connected via the transmission shaft 51, or the motor 50 can also be removed from the base 10.

[0067] When the bellows needs to be electrically retracted, the motor 50 is installed on the base 10 and cooperated with the transmission shaft 51 to connect the motor 50 to the transmission rod 31. The motor 50 is started to realize the electrically retracted bellows. Note that when using the motor 50 to drive the transmission rod 31, the manual arm 40 can be disconnected from the transmission rod 31.

[0068] When the bellows needs to be retracted over a long distance, multiple base segments 10a are sequentially connected using the connecting pins 17, which can extend the length of the device and expand its scope of use.

[0069] Compared with the existing technology that uses tape auxiliary materials to cause damage to the wire harness or pipeline by fixing in a fixed form such as friction between the internal wire harness and the pipe wall, this combined device for shrinking the length of the corrugated pipe changes the phenomenon of cumbersome, time-consuming and labor-intensive operation. The device has a simple structure, easy operation and good shrinking effect. Secondly, the device can effectively and accurately shrink the length of the corrugated pipe while ensuring the integrity and functionality of the corrugated pipe through the cooperation of the clamp and the transmission mechanism. In addition, when a longer distance is required to shrink, the device can extend the use length of the base by connecting multiple bases at the end, which can solve the purpose of shrinking long-distance wire pipes.

[0070] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A combined device for shrinking the length of a bellows, characterized in that: include: base (10); A clamp (20) mounted on the base (10) for clamping the corrugated pipe, the clamp (20) comprising a fixed clamp ring (21) with a fixed position and a movable clamp ring (23) slidably connected to the base (10); and The transmission mechanism (30) comprises a transmission rod (31) which connects the movable clamping ring (23) and the fixed clamping ring (21) and drives the movable clamping ring (23) to move relative to the fixed clamping ring (21) to contract the bellows. The end of the transmission rod (31) is connected to a driver for providing a power source to the transmission rod (31).

2. A combined device for shrinking the length of a corrugated pipe according to claim 1, It is characterized by: The top of the base (10) is connected to an upper baffle (11), and the upper baffle (11) is formed with a slide groove, and the slide groove is arranged parallel to the slideway opened by the base (10). The clamp (20) also includes a fixed seat (22) connected to one end of the slideway and a movable seat (24) slidably connected to the slideway, the fixed seat (22) passes through the slide groove and is connected to the fixed clamp ring (21), and the movable seat (24) passes through the slide groove and is connected to the movable clamp ring (23).

3. A combined device for shrinking the length of a corrugated pipe according to claim 2, It is characterized by: A groove (12) is provided inside the base (10) at the end of the slide, and the groove (12) is connected to a positioning block provided at the lower part of the fixing seat (22). A connecting seat (18) is formed at one end of the outside of the base (10), and the connecting seat (18) is connected to a limit block (13). A positioning hole is provided on the side wall of the base (10) and passes through the positioning block and the limit block (13). The positioning hole is pluggably connected to a connecting pin rod (17).

4. A combined device for shrinking the length of a bellows according to claim 2, characterized in that; The base (10) further comprises a protective cover plate (14) capable of covering the outside of the clamp (20); one end of the protective cover plate (14) is rotatably connected to the upper baffle (11) via a hinge pin (16), and the other end can be locked with or disengaged from the upper baffle (11) via a lock.

5. A combined device for shrinking the length of a bellows according to claim 2, characterized in that; The transmission rod (31) is a lead screw. One end of the transmission rod (31) is provided with a mounting hole for rotationally connecting with the fixed seat (22). The transmission rod (31) is provided with a limit spring (32) for preventing the transmission rod (31) from separating from the fixed seat (22). The movable seat (24) is provided with a screw hole for spiral transmission with the transmission rod (31).

6. A combined device for shrinking the length of a corrugated pipe according to claim 2, It is characterized by: The fixed clamp ring (21) and the movable clamp ring (23) both comprise a lower ring body and an upper ring body (25); one side of the upper ring body (25) is connected to the lower ring body via a pin (26), and the other side is connected to the lower ring body via a locking pin (27).

7. A combined device for shrinking the length of a corrugated pipe according to any one of claims 1 to 6, It is characterized by: The driver is a manual rotating arm (40), and a socket is provided at one end of the transmission rod (31), and the socket is connected to the manual rotating arm (40) by plugging and unplugging.

8. A combined device for shrinking the length of a corrugated pipe according to any one of claims 1 to 6, It is characterized by: The driver is a motor (50) connected to the base (10), and the power output shaft of the motor (50) is selectively connected to the protrusion at the end of the transmission rod (31) through a transmission shaft (51).

9. A combined device for shrinking the length of a corrugated pipe according to any one of claims 1 to 6, characterized in that ； It also includes a base split (10a), one end of the base split (10a) is connected to a connecting seat (18) formed at one end outside the base (10), and a connecting pin rod (17) passes through the base split (10a) and the connecting seat (18).

10. A combined device for shrinking the length of a corrugated pipe according to claim 9, characterized in that ； The base split (10a) is formed with the connecting seat (18) at the end away from the base (10), and the adjacent base splits (10a) are connected through the connecting seat (18).

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