Dust-free drag chain structure

Abstract

The utility model provides a dust-free drag chain structure which comprises a corrugated pipe set and fixing pieces, the fixing pieces are fixedly installed at the two ends of the corrugated pipe set, the corrugated pipe set comprises a first combining piece and a second combining piece, the first combining piece is provided with a plurality of first half pipes, the second combining piece is provided with a plurality of second half pipes, and the number of the first half pipes is equal to that of the second half pipes. The first half pipe and the second half pipe are covered to form a pipeline, the first half pipe and the second half pipe are provided with corrugations in the length direction, the corrugated pipe group comprises a plurality of pipelines, the plurality of pipelines are overlaid and fixed through the fixing pieces, the pipelines are used for accommodating cables, and the cables are separated through the plurality of pipeline pieces, so that the cables are separated from each other. And the risk of abrasion of the cable insulating layer is effectively reduced.

Description

Technical Field

[0001] This utility model belongs to the field of cable guiding technology, specifically relating to a dust-free drag chain structure. Background Technology

[0002] Cleanroom cable chains are typically used in cleanrooms to provide traction and protection for cables or conduits that require reciprocating motion. Due to the special environment of cleanrooms, high sealing performance is required for cleanroom cable chains. Existing cleanroom cable chains often use a corrugated pipe to hold multiple cables. During repeated movement of the chain, friction can easily occur between the cables, leading to wear of the cable insulation and posing a risk of short circuits. Utility Model Content

[0003] The purpose of this invention is to provide a dust-free cable chain structure to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a dust-free cable chain structure, comprising a corrugated pipe assembly and fixing components. Fixing components are fixedly installed at both ends of the corrugated pipe assembly. The corrugated pipe assembly includes a first assembly and a second assembly. The first assembly is provided with multiple first half-pipes, and the second assembly is provided with multiple second half-pipes. The number of first half-pipes and second half-pipes is equal. The first half-pipes and second half-pipes are joined together to form a pipe. Both the first half-pipes and the second half-pipes are corrugated in the extension direction.

[0005] Preferably, the corrugations between the plurality of first half-pipes overlap spatially, and the corrugations between the plurality of second half-pipes overlap spatially.

[0006] Preferably, the corrugations of the first half-tube and the corrugations of the second half-tube overlap spatially.

[0007] Preferably, the heights of the multiple first half-tubes are the same, and the heights of the multiple second half-tubes are the same.

[0008] Preferably, the fastener is provided with an assembly hole, and multiple fasteners are fixed together through the assembly hole.

[0009] Preferably, the shape of the crest or trough of the ripple includes any one of the following: arc, square, square-cornered, and oblique.

[0010] Preferably, the length of the trough section of the ripple is 0.5 to 5 times the length of the crest section.

[0011] Preferably, the pipe combination of the corrugated pipe assembly includes any one of type A pipe-type B pipe-type A pipe, type B pipe-type A pipe-type B pipe, type B pipe-type B pipe, and type A pipe-type A pipe.

[0012] Preferably, the type A tube and the type B tube are any one of a circular tube, an elliptical tube, a type D tube, and a square tube.

[0013] Preferably, the number of pipes is 2-8.

[0014] Preferably, the wall thickness of the corrugations is 0.2mm-2mm.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] The corrugated pipe assembly of this utility model includes multiple pipes, which are then stacked and fixed together by fasteners. The pipes are used to accommodate cables, and the cables are separated by multiple pipe components, which effectively reduces the risk of wear on the cable insulation layer.

[0017] This invention uses a symmetrical arrangement of corrugated pipes to balance the weight distribution of the cable chain, reducing swaying and offset during cable chain movement caused by uneven weight distribution, improving the dynamic balance of the cable chain, and preventing the cable chain from tipping over during movement. Attached Figure Description

[0018] Figure 1 This is a structural view of a single layer of this utility model.

[0019] Figure 2 This is a multi-layered structural view of the present invention.

[0020] Figure 3 This is a view of the first set of tubular arrangement structures of this utility model.

[0021] Figure 4 This is a view of the second set of tubular arrangement structure of this utility model.

[0022] Figure 5 This is a view of the third group of tubular arrangement structure of this utility model.

[0023] Figure 6 This is a view of the fourth group of tubular arrangement structure of this utility model.

[0024] Figure 7 This is a view of the fifth group of tubular arrangement structure of this utility model.

[0025] Figure 8 This is a view of the sixth group of tubular arrangement structure of this utility model.

[0026] Figure 9 This is a view of the seventh group of tubular arrangement structure of this utility model.

[0027] Figure 10 This is a view of the eighth group of tubular arrangement structure of this utility model.

[0028] Figure 11 This is a view of the waveform combination structure of the ripple of this utility model.

[0029] The diagram is labeled as follows: 1. Corrugated pipe assembly; 2. Fastener; 3. First assembly; 4. Second assembly; 5. First half-pipe; 6. Second half-pipe; 7. Pipe; 8. Corrugated; 9. Assembly hole. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Example 1:

[0032] like Figures 1-11 As shown, the present invention provides a dust-free cable chain structure, including a corrugated pipe assembly 1 and fixing members 2. Fixing members 2 are fixedly installed at both ends of the corrugated pipe assembly 1. The corrugated pipe assembly 1 includes a first assembly 3 and a second assembly 4. The first assembly 3 has multiple first half-pipes 5, and the second assembly 4 has multiple second half-pipes 6. The number of first half-pipes 5 and second half-pipes 6 is equal. The first half-pipes 5 and second half-pipes 6 are joined to form a pipe 7. Both the first half-pipes 5 and second half-pipes 6 have corrugations 8 in their extension direction. The corrugations 8 between the multiple first half-pipes 5 and the multiple second half-pipes 6 spatially overlap. The corrugations 8 of the first half-pipes 5 and the second half-pipes 6 spatially overlap. The heights of the multiple first half-pipes 5 and the multiple second half-pipes 6 are the same. The fixing members 2 have mounting holes 9, and the multiple fixing members 2 are fixed together through the mounting holes 9. The shape of the crest or trough section of corrugation 8 can be any of the following: arc, square, square-cornered, or oblique. The length of the trough section of corrugation 8 is 0.5 to 5 times the length of the crest section. The pipe 7 combination of corrugated pipe group 1 includes any of the following: type A pipe-type B pipe-type A pipe, type B pipe-type A pipe-type B pipe, type B pipe-type B pipe, and type A pipe-type A pipe. Type A and type B pipes can be any of the following: circular pipe, elliptical pipe, type D pipe, and square pipe. The number of pipes 7 is 2 to 8. The wall thickness of corrugation 8 is 0.2 mm to 2 mm.

[0033] Through the above technical solution, the corrugated pipe assembly 1 of this utility model includes multiple pipes 7, which are then stacked and fixed by fasteners 2. The pipes 7 are used to accommodate cables, and the cables are separated by the multiple pipes 7, which effectively reduces the risk of wear on the cable insulation layer.

[0034] This invention uses a symmetrical arrangement of the pipes 7 in the corrugated pipe assembly 1. The symmetrical arrangement of the pipes 7 helps to balance the weight distribution of the cable chain, reduce the swaying and offset of the cable chain during movement caused by uneven weight, improve the dynamic balance of the cable chain, and prevent the cable chain from tipping over during movement.

[0035] Example 2:

[0036] like Figures 1-11 As shown, this embodiment provides a dust-free cable chain structure, including a corrugated tube assembly 1 and fixing members 2. Fixing members 2 are fixedly installed at both ends of the corrugated tube assembly 1. The corrugated tube assembly 1 consists of a first assembly 3 and a second assembly 4. The first assembly 3 has multiple first half-tubes 5, and the second assembly 4 has multiple second half-tubes 6. The number of first half-tubes 5 and second half-tubes 6 is equal, and the first half-tubes 5 and their corresponding second half-tubes 6 are covered to form a pipe 7, which is used to accommodate and protect cables or other wires. By correspondingly covering and fixing multiple first half-tubes 5 and multiple second half-tubes 6, a multi-pipe corrugated tube assembly 1 is formed, facilitating the storage and classification of cables. Both the first half-tubes 5 and the second half-tubes 6 have corrugations 8 in their extension direction. The corrugation 8 structure gives the first half-tubes 5 and the second half-tubes 6 the ability to be coiled, which is used in machinery with travel capacity, improving the neatness of the cables while protecting them. Multiple corrugated tube assemblies 1 are stacked and fixed by the fixing members 2 to form a multi-layer pipe 7 cable chain structure, increasing the number of cables that can be stored.

[0037] Both the first assembly 3 and the second assembly 4 are provided with the same number of corrugated pipe halves (first half pipe 5 and second half pipe 6). The first assembly 3 and the second assembly 4 are closed and fixed to form a corrugated pipe group 1, which is convenient for installation and maintenance. The design of multiple pipes 7 allows cables of different types or functions to be placed separately, avoiding mutual interference and wear between cables.

[0038] When multiple corrugated pipe assemblies 1 need to be stacked, the fastener 2 is designed to be flat, with one side fitting against the corrugated pipe assembly 1 and the other side used to connect to adjacent corrugated pipe assemblies 1. The fastener 2 has multiple mounting holes 9 for fixing the corrugated pipe assembly 1 and connecting adjacent fasteners 2. For a single corrugated pipe assembly 1, the fastener 2 is designed with an upper and lower cover structure to press and fix the corrugated pipe assembly 1. The fastener 2 facilitates the installation of the cable chain on the equipment in use.

[0039] During assembly, cables or other wires are placed into the corrugated half-tube of the first assembly 3. The second assembly 4 is then placed over the first assembly 3, with the first and second snap-fit ​​parts engaging to form a single corrugated tube assembly 1. Fixing members 2 are installed at both ends of the corrugated tube assembly 1. Depending on application requirements, multiple corrugated tube assemblies 1 can be stacked and fixed using the fixing members 2 to increase the number of cables that can be accommodated by the cable chain.

[0040] In use, an appropriate number of corrugated pipe assemblies 1 can be stacked according to actual needs. The cable chain structure is connected to the equipment through a fixed end, and the free end reciprocates with the moving parts of the equipment, providing protection and guidance for the cable. The flexible design of the corrugated pipe assembly 1 allows the cable chain to bend and deform during movement, adapting to different movement trajectories.

[0041] The design with multiple conduits 7 not only improves cable protection but also facilitates cable classification and management. For example, power cables, signal cables, and air hoses can be placed in different conduits 7 to avoid mutual interference. Furthermore, the multiple conduit 7 design increases the load-bearing capacity of the cable chain, allowing it to accommodate more cables.

[0042] The fastener 2 not only facilitates the fixing of the cable chain to the equipment, but also ensures a stable connection between multiple bellows assemblies 1. By adjusting the number of stacked bellows assemblies 1, the number of layers in the cable chain can be flexibly changed to adapt to different application scenarios. The strength design of the fastener 2 ensures the stability and durability of the entire cable chain structure during reciprocating motion.

[0043] This invention is applicable to various automated equipment requiring reciprocating motion, and is particularly suitable for use in cleanroom environments. For example, in semiconductor manufacturing equipment, precision instrument production lines, and medical device manufacturing, this cable chain structure can provide a reliable cable protection and guidance solution for moving parts.

[0044] The molding process of this utility model includes:

[0045] 1. The first assembly 3 or the second assembly 4 is formed in sections and then welded to the required length.

[0046] 2. The first assembly 3 or the second assembly 4 is formed in sections to the required length in a second molding process.

[0047] 3. The first assembly 3 or the second assembly 4 is integrally formed to the required length. This process is simple, but the cost is high and the process is difficult.

[0048] Example 3:

[0049] The corrugations 8 between the multiple first half tubes 5 of this utility model overlap with each other in space, that is, the corrugations 8 between the multiple first half tubes 5 on the same first assembly 3 overlap with each other in space along the length direction of the first half tube 5.

[0050] Similarly, the corrugations 8 between multiple second half tubes 6 overlap in space, that is, the corrugations 8 between multiple second half tubes 6 on the same second assembly 4 overlap in space along the length direction of the second half tube 6.

[0051] The corrugations 8 of the first half-pipe 5 and the second half-pipe 6 overlap spatially, that is, the corrugations 8 of the first half-pipe 5 and the second half-pipe 6 of the layered corrugated pipe group overlap spatially along the length direction of the corrugated pipe group 1.

[0052] This design ensures that during the winding of the bellows assembly 1, which consists of the first assembly 3 and the second assembly 4, the corrugations 8 remain aligned laterally, making the winding process smooth and improving the flexibility of the bellows assembly 1. When the bellows assembly 1 is being wound, the precise alignment of the corrugations 8 in the lateral direction makes the entire winding process smoother, avoiding jamming or deformation problems caused by misalignment or irregular arrangement of the corrugations 8. This smooth winding performance not only improves the flexibility of the bellows assembly 1 but also enhances its reliability and durability in practical applications.

[0053] Example 4:

[0054] The height of the multiple first half-tubes 5 and the height of the multiple second half-tubes 6 of this utility model are the same. This design ensures that the corrugated height of each corrugated tube in the corrugated tube assembly 1, which has first assembly 3 and second assembly 4 layers, is consistent. When the corrugated tube assembly is rolled up, the rolling position of each corrugated tube is synchronized, preventing the corrugated tube assembly from getting stuck during rolling, making the rolling process of the corrugated tube assembly smooth and improving the flexibility of the corrugated tube assembly.

[0055] In practical applications, this design greatly improves the flexibility of the bellows assembly 1 during the winding process. Because the winding positions of each bellows are synchronized, the entire bellows assembly 1 can move smoothly as a whole during winding without localized jamming or deformation. This smooth winding performance not only reduces the risk of potential malfunctions during use but also extends its service life.

[0056] Secondly, this design also enhances the overall performance of the bellows assembly 1. Due to the high consistency of the corrugations 8, the bellows assembly 1 can better maintain its shape and structural stability during coiling. This stability is crucial for the reliability of the bellows assembly 1 in various applications, especially in dynamic environments requiring frequent coiling and uncoiling. For example, in mechanical transmission, pipe 7 connections, or flexible conduits, the high consistency and coiling synchronization of the bellows assembly 1 ensures stable operation even under complex working conditions.

[0057] Example 5:

[0058] like Figures 1-2 As shown, the present invention further optimizes the structure of the fastener 2 by providing multiple mounting holes 9 on the fastener 2. These mounting holes 9, together with bolts, are used to stack and fix multiple corrugated pipe groups 1, thereby enhancing the stability and reliability of the cable chain structure after stacking.

[0059] The mounting holes 9 are arranged in a matrix on the fastener 2. The diameter of each mounting hole 9 is - mm. The number and distribution of the mounting holes 9 are designed according to the size of the bellows assembly 1 and the expected maximum number of stacked layers.

[0060] During assembly, first align both ends of a single bellows assembly 1 with the fastener 2. Then, use bolts to secure it by passing them through the mounting holes 9 of the fastener 2 and the connecting holes of the bellows assembly 1. Repeat this process to stack and secure multiple bellows assemblies 1 sequentially.

[0061] The mounting hole 9 is designed not only to secure the bellows assembly 1, but also to connect adjacent fasteners 2. By using connectors between adjacent fasteners 2, the length of the cable chain can be increased. The connector can be a simple metal strip or a component with a hinge structure, the latter increasing the flexibility of the cable chain.

[0062] The mounting holes 9 on the fastener 2 can also be used to install additional components. For example, protective covers can be installed to enhance cable protection, or sensors can be installed to monitor the movement of the cable chain. This design increases the scalability and adaptability of the cable chain structure.

[0063] The design of mounting hole 9 also facilitates the maintenance and replacement of the cable chain. When a bellows assembly 1 needs repair or replacement, it can be removed simply by unscrewing the corresponding bolts without affecting other parts. This greatly improves the maintainability of the cable chain.

[0064] Another advantage of this design is that the stacking order of the corrugated tube assembly 1 can be adjusted as needed. For example, the corrugated tube assembly 1 carrying heavier cables can be placed on the lower layer, and the corrugated tube assembly 1 carrying lighter cables can be placed on the upper layer to optimize weight distribution.

[0065] Example 6:

[0066] like Figure 11 As shown, the shape of the crest or trough section of the corrugation 8 of this utility model includes any one of the following: arc shape, square shape, square-corner shape, and oblique shape. For example, arc-arc combination, arc-square combination, oblique-oblique combination, etc. The specific selection depends on the actual application environment. In some applications where the corrugated pipe requires more flexibility, such as machinery with low tensile force and high precision, oblique-oblique combination corrugations can be used to produce corrugated pipe assemblies. Because the turning angles of the crest or trough section are all bends, the corrugated pipe assembly is more flexible. Conversely, arc-arc combination, arc-square combination, etc., can be used.

[0067] The length of the trough section of the corrugated pipe is 0.5 to 5 times that of the crest section, which improves the flexibility and adaptability of the corrugated pipe.

[0068] Example 7:

[0069] like Figures 1-10 As shown, this utility model further optimizes the pipe 7 combination method of the corrugated pipe assembly 1. Specifically, the pipe 7 combination of the corrugated pipe assembly 1 includes any one of the following: A-type pipe-B-type pipe-A-type pipe, B-type pipe-A-type pipe-B-type pipe, B-type pipe-B-type pipe, and A-type pipe-A-type pipe. In this design, A-type pipe and B-type pipe represent two different specifications or functions of pipe 7. Through different combination methods, various cable layout requirements can be met.

[0070] The combination of A-type conduit-B-type conduit-A-type conduit is suitable for scenarios that need to accommodate a large number of cables of varying thicknesses simultaneously. In this combination, the A-type conduits on both sides can be used to place thicker power lines or multiple signal lines, while the B-type conduit in the middle can be used to place thinner control lines or optical fibers. This arrangement not only balances the weight distribution but also facilitates the classification and management of cables.

[0071] The combination of Type B-Type A-Type B conduit is suitable for situations where a large number of thin cables need to be placed in one location, while there are also a few thicker cables. The middle Type A conduit can be used to accommodate thicker cables or multiple medium-thickness cables, while the Type B conduits on both sides are used to place different types of thin cables, such as control cables and data cables.

[0072] The combination of B-type tubes is suitable for applications that primarily use thin cables, such as in precision instruments or small automated equipment. This combination provides more independent channels, which helps reduce mutual interference between different signal lines.

[0073] The combination of A-type conduits is suitable for applications requiring the accommodation of large amounts of thick cables or where ample space is needed. This combination offers maximum cable capacity and is suitable for large equipment or complex systems.

[0074] In practical applications, the most suitable conduit combination can be selected according to specific needs. For example, a semiconductor manufacturing device may need to accommodate multiple types of cables, such as power lines, control lines, data lines, and air tubes. In this case, a combination of type A tube - type B tube - type A tube can be selected, placing the power lines and air tubes in the type A tubes on both sides, and placing the control lines and data lines in the middle type B tube.

[0075] This flexible 7-pipe combination design also allows for different combinations to be used within the same cable chain structure. For example, a combination of type A pipe - type B pipe - type A pipe can be used in one part of the cable chain, while a combination of type B pipe - type A pipe - type B pipe can be used in another part to accommodate the cable layout requirements of different sections.

[0076] During installation, workers need to select the appropriate conduit combination method according to the pre-designed cable layout plan. This diverse conduit combination design not only improves the adaptability and flexibility of the cable chain structure but also enhances the efficiency and safety of cable management. A reasonable cable distribution can reduce friction and interference between cables, extend cable lifespan, and lower the risk of interference in signal transmission.

[0077] This flexible 7-combination design of the cable chain structure offers greater application possibilities, enabling it to better adapt to various complex industrial environments and application requirements. Whether in semiconductor manufacturing, medical device production, or precision instrument manufacturing, this design can provide customized cable protection and management solutions.

[0078] Example 8:

[0079] like Figures 1-10 As shown, this embodiment, based on Embodiment 7, further illustrates the specific shapes of Type A and Type B tubes. Type A and Type B tubes can be any of the following: circular, elliptical, Type D, or square. This diverse tube shape design greatly increases the applicability and flexibility of the cleanroom cable chain structure.

[0080] Circular conduits are the most common conduit shape, characterized by their simple structure and uniform stress distribution. They are suitable for accommodating single, thick cables or multiple thin cables. In practical applications, circular conduits are often used to house power lines, thick signal lines, or air conduits. Due to their regular shape, circular conduits maintain good stability when the cable chain bends, minimizing stress concentration.

[0081] The elliptical tube design provides greater lateral space, making it suitable for accommodating flat cables or multiple parallel thin cables. The advantage of the elliptical tube lies in its ability to hold more cables within limited vertical space. This design is particularly suitable for scenarios requiring a large number of thin cables but with limited vertical space, such as the cable arrangement inside precision instruments.

[0082] The D-shaped tube combines the advantages of both round and square shapes, with one side being flat and the other curved. This design retains some of the advantages of a round tube while providing a flat surface for cable fixing and support.

[0083] The square conduit offers maximum space utilization and is suitable for accommodating cable bundles with rectangular cross-sections or multiple cables requiring strict separation. The square conduit design allows for neater cable arrangement within the conduit, facilitating management and identification.

[0084] In practical applications, different shapes of pipes 7 can be selected according to specific needs. For example, in a complex industrial automation system, it may be necessary to use multiple shapes of pipes 7 simultaneously. Power lines and thick signal lines can be placed in round pipes, flat data lines can be placed in oval pipes, control lines that need to be fixed to one side can be placed in D-shaped pipes, and multiple thin signal lines that need to be strictly separated can be placed in square pipes.

[0085] This diverse pipe shape design also allows for the mixing of different pipe shapes within the same cable chain structure. For example, circular pipes can be used as Type A pipes, and elliptical pipes as Type B pipes, forming a combination of Type A-Type B-Type A pipes. This flexible combination method can maximize the satisfaction of various complex cable layout requirements.

[0086] Example 9:

[0087] The number of pipes 7 in this utility model is 2-8. In practical applications, 2, 3, or 4 pipes 7 are optimal, as this number ensures the balance of the corrugated pipe assembly 1 and prevents it from tipping over during movement. With the assistance of some reinforcing ribs, or when the size of the pipes 7 is small, the number of pipes 7 in the corrugated pipe assembly 1 can be increased to 5-8, increasing the number of cables that the corrugated pipe assembly 1 can accommodate. Under certain conditions, the reinforcing ribs can prevent the corrugated pipe assembly 1 from tipping over during movement.

[0088] The wall thickness of the corrugated 8 in this invention is 0.2mm-2mm. This thickness design gives the corrugated 8 the flexibility to move, while preventing the corrugated pipe assembly 1 from having a reduced service life due to the wall thickness of the corrugated 8 being too thin.

[0089] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0090] The above description is only used to illustrate the technical solution of this utility model and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A dust-free cable chain structure, comprising a corrugated pipe assembly and fixing members, wherein fixing members are fixedly installed at both ends of the corrugated pipe assembly, and the corrugated pipe assembly includes a first assembly and a second assembly, characterized in that, The first assembly has multiple first half-pipes, and the second assembly has multiple second half-pipes. The number of first half-pipes and second half-pipes is equal. The first half-pipes and second half-pipes are joined together to form a pipe. Both the first half-pipes and the second half-pipes have corrugations in the extension direction.

2. The dust-free cable chain structure according to claim 1, characterized in that, The corrugations between the multiple first half-pipes overlap spatially, and the corrugations between the multiple second half-pipes overlap spatially.

3. The dust-free cable chain structure according to claim 1, characterized in that, The corrugations of the first half-tube and the corrugations of the second half-tube overlap spatially.

4. The dust-free cable chain structure according to claim 1, characterized in that, The height of multiple first half-pipes is the same, and the height of multiple second half-pipes is the same.

5. The dust-free cable chain structure according to claim 1, characterized in that, The fastener is provided with an assembly hole, and multiple fasteners are fixed together through the assembly hole.

6. The dust-free cable chain structure according to claim 1, characterized in that, The shape of the crest or trough of the ripple includes any one of the following: arc, square, square-cornered, and oblique.

7. The dust-free cable chain structure according to claim 6, characterized in that, The length of the trough segment of the ripple is 0.5 to 5 times the length of the crest segment.

8. The dust-free cable chain structure according to claim 1, characterized in that, The corrugated pipe assembly includes any one of the following: A-type pipe-B-type pipe-A-type pipe, B-type pipe-A-type pipe-B-type pipe, B-type pipe-B-type pipe, and A-type pipe-A-type pipe.

9. A dust-free cable chain structure according to claim 8, characterized in that, The type A tube and the type B tube are any one of the following: circular tube, elliptical tube, type D tube, and square tube.

10. The dust-free cable chain structure according to claim 1, characterized in that, The number of pipelines is 2-8.

11. The dust-free cable chain structure according to claim 1, characterized in that, The wall thickness of the corrugations is 0.2mm-2mm.

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