Telescopic structure of telescopic arm pipeline

Abstract

The utility model discloses a telescopic arm pipeline telescopic structure which comprises a first pipe groove, a second pipe groove and a pipeline, a first assembling groove is formed in one side of the first pipe groove, a second assembling groove is formed in the side, facing the first pipe groove, of the second pipe groove, and a groove opening of the first assembling groove and a groove opening of the second assembling groove face the same direction. The pipeline comprises a first pipeline, a second pipeline and a third pipeline, the first pipeline, the second pipeline and the third pipeline are sequentially connected, the second pipeline is a hose, the first pipeline is fixedly assembled in the first assembling groove, the second pipeline is laid in the second assembling groove, and the third pipeline is fixedly assembled on the side, opposite to the second assembling groove, of the second pipeline groove; the first pipeline, the second pipeline and the third pipeline are arranged in an S shape, during installation, the telescopic structure is installed on one side of the telescopic arm, due to the design of the external pipeline, the pipeline can be easily contacted when needing to be checked or maintained, and the maintenance difficulty is lowered.

Description

Technical Field

[0001] The utility model relates to the technical field of aerial work equipment, in particular to a telescopic arm pipeline telescopic structure. Background Art

[0002] When installing hydraulic actuators on moving parts that experience telescopic motion, it's important to consider how to transfer the power transmission medium, such as hydraulic oil, to the moving parts. Fluid hoses and pipelines must adapt to the movement of the moving parts. Currently, the most commonly used installation method is internal, with other options including side-mounted and overhead.

[0003] Built-in telescopic systems are primarily implemented in two ways: one using a pulley system and the other using a chain. Both methods employ similar transmission mechanisms, extending the hose line so that it bends when the moving part reaches its minimum distance and relatively unwinds at its maximum distance, ensuring optimal operation. The pulley or chain provides guidance, but the built-in system's piping system is located within the telescopic boom. Assembly and maintenance require disassembly of the boom, making repairs more difficult. Utility Model Content

[0004] In order to overcome at least one of the defects of the prior art described above, the present invention provides a telescopic arm pipeline telescopic structure, which can solve the problem of difficult assembly and maintenance of built-in pipelines.

[0005] The technical solution adopted by the present invention to solve the problem is:

[0006] A telescopic arm pipeline telescopic structure, comprising:

[0007] A first pipe groove, wherein a first assembly groove is provided on one side of the first pipe groove;

[0008] A second pipe groove, wherein the second pipe groove is provided with a second assembly groove on a side facing the first pipe groove, and the notch of the first assembly groove and the notch of the second assembly groove face the same direction;

[0009] The pipeline includes a first pipeline, a second pipeline and a third pipeline, the first pipeline, the second pipeline and the third pipeline are connected in sequence, the second pipeline is a hose, the first pipeline is fixedly assembled in the first assembly groove, the second pipeline is laid in the second assembly groove, and the third pipeline is fixedly assembled on the side of the second pipe groove facing away from the second assembly groove, and the first pipeline, the second pipeline and the third pipeline are arranged in an S shape.

[0010] By adopting this solution, the external piping design allows for easy access when inspection or maintenance is required, reducing maintenance complexity. Furthermore, the first pipe groove can be connected to the boom of the telescopic arm, while the second pipe groove can be connected to the base arm of the telescopic arm. When the boom moves, the first pipe groove moves with it, pulling the second pipe in the second assembly groove forward, allowing the pipe to automatically adapt to changes in the telescopic arm's movement. Furthermore, when the first pipe groove is not moving relative to the second pipe groove, the second pipe, acting as a flexible hose, is contained within the second assembly groove, avoiding collision or interference with other components and ensuring normal operation of the system.

[0011] Furthermore, the first pipe groove is provided with a first connecting plate, and the first connecting plate is fixedly connected to the first pipe groove; the second pipe groove is provided with a second connecting plate, and the second connecting plate is fixedly connected to the second pipe groove.

[0012] By adopting the above solution, the first connecting plate provided in the first pipe groove is conveniently connected to the movable arm, and the second connecting plate in the second pipe groove is conveniently connected to the base arm.

[0013] Furthermore, it also includes a first-level telescopic guide arm, the first-level telescopic guide arm is provided with a first guide groove, the first tube groove is slidably connected to the first guide groove, so that the first tube groove slides relative to the first guide groove.

[0014] By adopting the above solution, through the connection between the first-level telescopic guide arm and the base arm, and the sliding arrangement between the first tube groove and the first-level telescopic guide arm, it is ensured that during the telescopic arm extension and retraction process, the first tube groove can stably move with the movable arm, and the position of the tube groove will not be offset or shaken due to the extension and retraction of the movable arm.

[0015] Furthermore, it also includes a secondary telescopic guide arm, the first tube groove is slidingly connected to the first telescopic guide arm through the secondary telescopic guide arm, the secondary telescopic guide arm is provided with a first slider, the first slider is slidably arranged in the first guide groove, and the first tube groove is slidingly connected to the secondary telescopic guide arm.

[0016] Furthermore, the secondary telescopic guide arm is provided with a second guide groove, the first tube groove is provided with a second slider, and the second slider is slidably arranged in the second guide groove.

[0017] By adopting the above solution, through the cooperation between the second slider and the second guide groove, the first tube groove can slide smoothly relative to the secondary telescopic guide arm when the tertiary arm is telescoped, so that the first tube groove has a stable track when sliding, reducing the shaking during the sliding process and improving the positioning accuracy of the first tube groove relative to the secondary telescopic guide arm during movement.

[0018] Furthermore, the secondary telescopic guide arm is provided with a third connecting plate, and the third connecting plate is fixedly connected to the secondary telescopic guide arm.

[0019] By adopting the above solution, the third connecting plate facilitates the connection between the secondary telescopic guide arm and the secondary arm.

[0020] Furthermore, a limiting member is provided in the second assembly groove, and the limiting member is provided at one end where the second pipe is connected to the third pipe. The second assembly groove and the limiting member surround a limiting through hole, and the second pipe is located in the limiting through hole.

[0021] By adopting the above solution and providing a stopper, a certain length of the second pipe is always reserved within the second assembly groove, ensuring that the second pipe can be recovered in the direction of the reserved length during the recovery process of the first pipe groove. This ensures that the second pipe will not extend to a position at a right angle or a position close to a right angle with the third pipe, thereby avoiding the problem of inconsistent orientation of the second pipe during recovery. This ensures that the second pipe can be smoothly stored in the second assembly groove during recovery, improving storage efficiency and reliability.

[0022] Furthermore, a pipe assembly rack is provided on a side of the second pipe groove facing away from the second assembly groove, and the third pipe is fixedly mounted on the pipe assembly rack.

[0023] By adopting the above solution, the design of the pipe assembly rack makes the installation of the third pipe very simple. The third pipe can be directly fixed on the assembly rack without complicated positioning or additional fixing measures, simplifying the installation process.

[0024] Furthermore, a plurality of the pipe assembly racks are provided along the length direction of the second pipe groove, and the third pipe is fixedly provided along all the pipe assembly racks.

[0025] By adopting the above solution, multiple pipe assembly frames are set along the length direction of the second pipe groove, ensuring that the third pipe has evenly distributed fixing points throughout the entire length, so that the third pipe can be effectively supported at different positions of the telescopic arm, thereby improving the overall stability of the third pipe.

[0026] Furthermore, a wiring board is provided in the first assembly groove, and the wiring board is provided with two rows of pipe holes, the two rows of pipe holes are staggered, a plurality of first pipes are provided, and each of the first pipes passes through one of the pipe holes, and all the first pipes are connected to the second pipe.

[0027] By adopting this solution, since the pipe holes are mostly circular, the staggered arrangement effectively reduces the longitudinal height, reducing the vertical height occupied by multiple first pipes within a limited space, thereby optimizing space utilization. Furthermore, the staggered arrangement of the pipe holes ensures the orderly arrangement of the first pipes, preventing entanglement or interlacing of the multiple pipes and improving the neatness of the pipe layout.

[0028] In summary, the telescopic arm pipeline telescopic structure provided by the utility model has the following technical effects:

[0029] 1. The external pipe design allows easy access to the pipes when they need to be inspected or maintained, reducing the difficulty of maintenance. The first pipe groove can be connected to the boom of the telescopic arm, and the second pipe groove can be connected to the base arm of the telescopic arm.

[0030] 2. When the boom moves, the first pipe groove moves accordingly, thereby pulling the second pipe in the second assembly groove forward, so that the pipeline automatically adapts to the changes in the telescopic arm movement.

[0031] 3. When the first pipe groove does not move relative to the second pipe groove, the second pipe as a hose is accommodated in the second assembly groove, avoiding collision or interference with other components and ensuring the normal operation of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0033] Figure 2 It is a side view of the utility model;

[0034] Figure 3 It is a schematic diagram of the connection state of the telescopic structure and the telescopic arm of the utility model.

[0035] Among them, the meanings of the figure marks are as follows: 1. first pipe groove; 11. first assembly groove; 12. first connecting plate; 13. second slider; 14. wiring board; 2. second pipe groove; 21. second assembly groove; 22. second connecting plate; 23. limiter; 24. pipe assembly frame; 31. first pipe; 32. second pipe; 33. third pipe; 41. first-level telescopic guide arm; 411. first guide groove; 42. second-level telescopic guide arm; 421. second guide groove; 422. first slider; 423. third connecting plate; 5. telescopic arm; 51. tertiary arm; 52. secondary arm; 53. basic arm. DETAILED DESCRIPTION

[0036] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described and discussed below in conjunction with the drawings of the present invention. Obviously, what is described here is only a part of the examples of the present invention, not all the examples. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0037] In order to facilitate the understanding of the embodiments of the present invention, the following will be further explained with reference to specific embodiments as examples in conjunction with the drawings, and each embodiment does not constitute a limitation on the embodiments of the present invention.

[0038] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0040] See Figure 1-Figure 3 As shown, the utility model discloses a telescopic arm pipeline telescopic structure, including a first pipe groove 1, a second pipe groove 2 and a pipe, one side of the first pipe groove 1 is provided with a first assembly groove 11, and the second pipe groove 2 is provided with a second assembly groove 21 on the side facing the first pipe groove 1, the notch of the first assembly groove 11 and the notch of the second assembly groove 21 face the same direction, the pipe includes a first pipe 31, a second pipe 32 and a third pipe 33, the first pipe 31, the second pipe 32 and the third pipe 33 are connected in sequence, the second pipe 32 is a hose, the first pipe 31 is fixedly assembled in the first assembly groove 11, the second pipe 32 is laid in the second assembly groove 21, and the third pipe 33 is fixedly assembled on the side of the second pipe groove 2 facing away from the second assembly groove 21, and the first pipe 31, the second pipe 32 and the third pipe 33 are arranged in an S shape.

[0041] Specifically, a first assembly groove 11 is provided on one side of the first pipe groove 1, and a second assembly groove 21 is provided on the side of the second pipe groove 2 facing the first pipe groove 1. It is best to set the first pipe groove 1 and the second pipe groove 2 in parallel. The notch of the first assembly groove 11 and the notch of the second assembly groove 21 face the same direction. The pipeline includes a first pipeline 31, a second pipeline 32 and a third pipeline 33, wherein the first pipeline 31, the second pipeline 32 and the third pipeline 33 are connected in sequence, the second pipeline 32 is a hose, the first pipeline 31 is fixedly assembled in the first assembly groove 11, the second pipeline 32 is laid in the second assembly groove 21, and the third pipeline 33 is fixedly assembled on the side of the second pipe groove 2 facing away from the second assembly groove 21. The first pipeline 31, the second pipeline 32 and the third pipeline 33 are arranged in an S shape.

[0042] The working principle of the above structure is:

[0043] During use, the first pipe groove 1 can be assembled on the boom of the telescopic arm 5, and the second pipe groove 2 can be assembled on the base arm 53 (not the boom) of the telescopic arm 5. When the boom is extended outward relative to the base arm 53, the first pipe groove 1 moves relative to the second pipe groove 2 along with the movement of the boom. When the first pipe groove 1 moves, the first pipe 31 in the first pipe groove 1 will drive the second pipe 32 in the second pipe groove 2 to move in the direction of movement of the first pipe groove 1, thereby completing the adaptive extension of the pipes in the extended state of the telescopic arm 5. When the boom is retracted relative to the base arm 53, similarly, the first pipe groove 1 moves relative to the second pipe groove 2 along with the mobility of the boom. When the first pipe groove 1 moves, the first pipe 31 in the first pipe groove 1 will drive the second pipe 32 in the second pipe groove 2 back to the second assembly groove 21, thereby completing the retraction of the pipes in the retracted state of the telescopic arm 5.

[0044] The above structure allows for easy access to the piping for inspection or maintenance, reducing maintenance complexity. Furthermore, the first pipe trough 1 can be connected to the boom of the telescopic arm 5, while the second pipe trough 2 can be connected to the base arm 53 of the telescopic arm 5. When the boom moves, the first pipe trough 1 moves with it, pulling the second pipe 32 in the second assembly trough 21 forward, allowing the piping to automatically adapt to the changes in the movement of the telescopic arm 5. Furthermore, when the first pipe trough 1 is not moving relative to the second pipe trough 2, the second pipe 32, acting as a flexible hose, is contained within the second assembly trough 21, preventing collision or interference with other components and ensuring proper system operation.

[0045] In some embodiments, the first tube trough 1 is provided with a first connecting plate 12 , which is fixedly connected to the first tube trough 1 , and the second tube trough 2 is provided with a second connecting plate 22 , which is fixedly connected to the second tube trough 2 .

[0046] Specifically, the first connecting plate 12 provided on the first pipe groove 1 is used to connect the first pipe groove 1 to the boom, and the second connecting plate 22 of the second pipe groove 2 is used to connect to the base arm 53. When the telescopic arm 5 has multiple sections, the first connecting plate 12 can be connected to the boom at the endmost position away from the base arm 53. With this arrangement, when the other booms other than the endmost boom move, the endmost boom will move with the other booms. Therefore, the coordination between the first pipe groove 1 and the second pipe groove 2 can achieve corresponding adjustment of the pipe position during the multi-stage boom movement.

[0047] In some embodiments, the telescopic arm pipeline telescopic structure also includes a first-level telescopic guide arm 41, which is provided with a first guide groove 411. The first tube groove 1 is slidably connected to the first guide groove 411 so that the first tube groove 1 slides relative to the first guide groove 411.

[0048] Specifically, since the exposed area of ​​the telescopic arm 5 is small when the boom is in the retracted state, if it is connected only by the first connecting plate 12, the strength of the first connecting plate 12 will be required to be higher. In order to control the strength of the first connecting plate 12 and improve the stability of the first tube groove 1 during movement, a first-level telescopic guide arm 41 is added to the telescopic structure. Through the connection between the first-level telescopic guide arm 41 and the base arm 53, and the sliding setting between the first tube groove 1 and the first-level telescopic guide arm 41, it is ensured that during the telescopic arm 5 extension and contraction process, the first tube groove 1 can stably move with the boom, and the extension and contraction of the boom will not cause the position of the tube groove to be offset or shaken.

[0049] In some embodiments, the telescopic arm pipeline telescopic structure also includes a secondary telescopic guide arm 42, the first tube groove 1 is slidingly connected to the primary telescopic guide arm 41 through the secondary telescopic guide arm 42, the secondary telescopic guide arm 42 is provided with a first slider 422, the first slider 422 is slidably arranged in the first guide groove 411, and the first tube groove 1 is slidingly connected to the secondary telescopic guide arm 42.

[0050] Specifically, this design can adapt to the common three-stage telescopic arm 5 structure on the market. Specifically, the secondary telescopic guide arm 42 is fixedly connected to the secondary arm 52 of the telescopic arm 5, and the first pipe groove 1 is fixedly connected to the tertiary arm 51 of the telescopic arm 5. To facilitate understanding of the structure of the three-stage telescopic arm 5, the three-stage telescopic arm 5 is now divided into three sections: the tertiary arm 51, the secondary arm 52, and the base arm 53. The non-movable arm is the base arm 53, and the movable arms are the tertiary arm 51 and the secondary arm 52. The tertiary arm 51 is the movable arm facing away from the base arm 53, and the secondary arm 52 is located between the tertiary arm 51 and the base arm 53. That is, the tertiary arm 51, the secondary arm 52, and the base arm 53 are arranged in sequence. This structure can adapt to the different telescopic states of the multi-stage telescopic arm 5, ensuring that the pipeline can smoothly follow the movement of the telescopic arm 5 at any stage of extension and retraction.

[0051] When the secondary arm 52 extends and retracts, it drives the internally mounted tertiary arm 51 to move along with it, simultaneously moving the first tube trough 1 on the tertiary arm 51. As the tertiary arm 51 moves, the first conduit 31 on the first tube trough 1 drives the second conduit 32 (hose) to extend and retract accordingly. During this process, the secondary telescopic guide arm 42 slides relative to the primary telescopic guide arm 41. This multi-stage sliding structure enhances the stability of the sliding motion and ensures the smooth movement of the first tube trough 1.

[0052] When the secondary arm 52 is extended to its limit, the second pipe 32 (hose) still has a certain remaining length. Correspondingly, when the tertiary arm 51 is further extended relative to the secondary arm 52, the tertiary arm 51 can drive the first pipe groove 1 to slide relative to the secondary telescopic guide arm 42, thereby driving the first pipe 31 and the second pipe 32 to move, ensuring that the remaining length of the second pipe 32 can be smoothly extended into place.

[0053] The multi-stage guiding structure ensures that during the telescopic process, the first pipe groove 1 and other parts of the telescopic arm 5 will not interfere with each other, thereby ensuring the smooth movement of the pipeline.

[0054] In some embodiments, the secondary telescopic guide arm 42 is provided with a second guide groove 421 , the first tube groove 1 is provided with a second slider 13 , and the second slider 13 is slidably disposed in the second guide groove 421 .

[0055] Specifically, through the cooperation between the second slider 13 and the second guide groove 421, the first tube groove 1 can slide smoothly relative to the secondary telescopic guide arm 42 when the tertiary arm 51 is extended or retracted, so that the first tube groove 1 has a stable track when sliding, reducing the shaking during the sliding process and improving the positioning accuracy of the first tube groove 1 relative to the secondary telescopic guide arm 42 during movement.

[0056] In some embodiments, in order to facilitate the connection between the secondary telescopic guide arm 42 and the secondary arm 52, the secondary telescopic guide arm 42 is provided with a third connecting plate 423, and the third connecting plate 423 is fixedly connected to the secondary telescopic guide arm 42. When the telescopic structure is applied to the three-stage telescopic arm 5 structure, the third connecting plate 423 can facilitate the transmission connection between the secondary telescopic guide arm 42 and the secondary arm 52, thereby realizing the synchronous movement of the secondary arm 52 and the secondary telescopic guide arm 42.

[0057] It should be noted that when the secondary telescopic guide arm 42 is not connected to the secondary arm 52, since the first tube slot 1 is connected to the tertiary arm 51 and the first tube slot 1 is slidably connected to the secondary telescopic guide arm 42, the secondary telescopic guide arm 42 is slidably connected to the primary telescopic guide arm 41. When the first tube slot 1 and the tertiary arm 51 move synchronously, as the first tube slot 1 moves to the extension limit of the secondary arm 52 and the tertiary arm 51, the secondary telescopic guide arm 42 and the primary telescopic guide arm 41 are still deployed sequentially or synchronously. The provision of the third connecting plate 423 ensures that the secondary telescopic guide arm 42 can move synchronously with the secondary arm 52, and provides a connection point for the secondary telescopic guide arm 42, thereby ensuring the stability of the secondary telescopic guide arm 42 during movement.

[0058] In some embodiments, a limiting member 23 is provided in the second assembly groove 21, and the limiting member 23 is provided at one end where the second pipe 32 and the third pipe 33 are connected. The second assembly groove 21 and the limiting member 23 are surrounded to form a limiting through hole, and the second pipe 32 is located in the limiting through hole.

[0059] Specifically, by providing the stopper 23, a certain length of the second pipe 32 is always reserved within the second assembly groove 21, ensuring that the second pipe 32 can be recovered in the direction of the reserved length during the recovery process of the first pipe groove 1. This ensures that the second pipe 32 does not extend to form a right angle or a near right angle with the third pipe 33, thereby avoiding the problem of inconsistent orientation of the second pipe 32 during recovery. This ensures that the second pipe 32 can be smoothly stored in the second assembly groove 21 during recovery, improving storage efficiency and reliability.

[0060] In some embodiments, a pipe assembly rack 24 is provided on a side of the second pipe groove 2 facing away from the second assembly groove 21 , and the third pipe 33 is fixedly mounted on the pipe assembly rack 24 .

[0061] Specifically, the design of the pipe assembly bracket 24 greatly simplifies the installation of the third pipe 33. The third pipe 33 can be directly secured to the bracket, eliminating the need for complex positioning or additional securing measures, thus simplifying the installation process. Based on the structure of the third connecting plate 423, the third connecting plate 423 can be integrated with the pipe assembly bracket 24 to facilitate subsequent assembly.

[0062] In some embodiments, a plurality of pipe assembly racks 24 are provided along the length direction of the second pipe groove 2 , and the third pipe 33 is fixedly provided along all the pipe assembly racks 24 .

[0063] Specifically, multiple pipe assembly frames 24 are arranged along the length direction of the second pipe groove 2, ensuring that the third pipe 33 has evenly distributed fixing points throughout the entire length, so that the third pipe 33 can be effectively supported at different positions of the telescopic arm 5, thereby improving the overall stability of the third pipe 33.

[0064] In some embodiments, a wiring board 14 is provided in the first assembly groove 11 , and the wiring board 14 is provided with two rows of pipe holes, which are staggered. There are multiple first pipes 31 , and each first pipe 31 passes through one of the pipe holes, and all first pipes 31 are connected to the second pipe 32 .

[0065] Specifically, since the pipe holes are mostly circular, staggering them effectively reduces the longitudinal height, reducing the vertical height occupied by multiple first pipes 31 within a limited space, thereby optimizing space utilization. Furthermore, the staggered arrangement of the pipe holes ensures the orderly arrangement of the first pipes 31, preventing entanglement or interlacing between the multiple pipes and improving the neatness of the pipe layout. Furthermore, the number of second pipes 32 and third pipes 33 can also be set to match the number of first pipes 31, facilitating precise adjustment of the oil pressure in each pipe.

[0066] The technical means disclosed in the present invention are not limited to those disclosed in the above-mentioned embodiments, but also include technical solutions composed of any combination of the above-mentioned technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A telescopic arm pipeline telescopic structure, characterized in that: include: A first pipe groove (1), wherein a first assembly groove (11) is provided on one side of the first pipe groove (1); A second pipe groove (2), wherein the second pipe groove (2) is provided with a second assembly groove (21) on a side facing the first pipe groove (1), and the notch of the first assembly groove (11) and the notch of the second assembly groove (21) face the same direction; A pipeline, comprising a first pipeline (31), a second pipeline (32) and a third pipeline (33); the first pipeline (31), the second pipeline (32) and the third pipeline (33) are connected in sequence; the second pipeline (32) is a hose; the first pipeline (31) is fixedly assembled in the first assembly groove (11); the second pipeline (32) is laid in the second assembly groove (21); the third pipeline (33) is fixedly assembled in the second pipe groove (2) on the side facing away from the second assembly groove (21); the first pipeline (31), the second pipeline (32) and the third pipeline (33) are arranged in an S shape.

2. The telescopic arm pipeline telescopic structure according to claim 1, characterized in that: The first tube trough (1) is provided with a first connecting plate (12), the first connecting plate (12) being fixedly connected to the first tube trough (1), and the second tube trough (2) is provided with a second connecting plate (22), the second connecting plate (22) being fixedly connected to the second tube trough (2).

3. The telescopic arm pipeline telescopic structure according to claim 1, characterized in that: The invention also includes a first-stage telescopic guide arm (41), wherein a first guide groove (411) is provided on the first-stage telescopic guide arm (41), and the first tube groove (1) is slidably connected to the first guide groove (411), so that the first tube groove (1) slides relative to the first guide groove (411).

4. The telescopic arm pipeline telescopic structure according to claim 3, characterized in that: The invention also includes a secondary telescopic guide arm (42), wherein the first tube groove (1) is slidably connected to the first telescopic guide arm (41) through the secondary telescopic guide arm (42), and the secondary telescopic guide arm (42) is provided with a first slider (422), and the first slider (422) is slidably arranged in the first guide groove (411), and the first tube groove (1) is slidably connected to the secondary telescopic guide arm (42).

5. The telescopic arm pipeline telescopic structure according to claim 4, characterized in that: The secondary telescopic guide arm (42) is provided with a second guide groove (421), the first tube groove (1) is provided with a second slider (13), and the second slider (13) is slidably arranged in the second guide groove (421).

6. The telescopic arm pipeline telescopic structure according to claim 5, characterized in that: The secondary telescopic guide arm (42) is provided with a third connecting plate (423), and the third connecting plate (423) is fixedly connected to the secondary telescopic guide arm (42).

7. The telescopic arm pipeline telescopic structure according to claim 1, characterized in that: A limiting member (23) is provided in the second assembly groove (21), and the limiting member (23) is provided at one end where the second pipe (32) is connected to the third pipe (33). The second assembly groove (21) and the limiting member (23) are surrounded to form a limiting through hole, and the second pipe (32) is located in the limiting through hole.

8. The telescopic arm pipeline telescopic structure according to claim 1, characterized in that: A pipe assembly rack (24) is provided on the side of the second pipe groove (2) facing away from the second assembly groove (21), and the third pipe (33) is fixedly mounted on the pipe assembly rack (24).

9. The telescopic arm pipeline telescopic structure according to claim 8, characterized in that: A plurality of the pipe assembly racks (24) are arranged along the length direction of the second pipe groove (2), and the third pipe (33) is fixedly arranged along all the pipe assembly racks (24).

10. The telescopic arm pipeline telescopic structure according to claim 8 or 9, characterized in that: A wiring board (14) is provided in the first assembly groove (11), and the wiring board (14) is provided with two rows of pipe holes, the two rows of pipe holes are staggered, a plurality of first pipes (31) are provided, and each first pipe (31) passes through one of the pipe holes, and all the first pipes (31) are connected to the second pipe (32).

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