Pipe penetrating assembly and pipe penetrating device with same
By designing pipe-through components and convenient splicing structures that can adjust the size of the through hole, the problem that the pipeline layout in CNC machine tools is difficult to adapt to different diameter specifications, and more flexible and convenient pipeline layout and maintenance are achieved.
Patent Information
- Application Number
- CN202411729214.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2025-02-28
AI Technical Summary
The pipeline layout method in existing CNC machine tools is difficult to adapt to pipelines and lines of different diameter specifications, resulting in messy layout and inconvenient maintenance.
A pipe-through assembly is designed, including a main structure, a pipe-through-through structure and a connecting structure. The through holes of the pipe-through-through structure can be adjusted, and the connecting structure part can be deformed to adapt to line bodies of different diameters, and multiple components can be easily spliced and combined through the splicing structure.
It improves the flexibility and adaptability of pipeline layout, simplifies the pipeline adjustment and expansion process, reduces maintenance difficulty, and enhances the aesthetics and integrity of CNC machine tools.
Smart Images

Figure CN119526030A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of pipe penetration, and in particular to a pipe penetration assembly and a pipe penetration device having the same. Background Art
[0002] Since its introduction, CNC machine tools have become one of the core equipment of modern manufacturing industry and are widely used in many fields such as automobile manufacturing, mold processing, aerospace, military production, etc. The high efficiency, precision and automation of CNC machine tools have greatly promoted the development of industrial production. However, with the increasing complexity of machine tool functions, the types and number of pipes and lines that need to be arranged inside and around them have also increased dramatically. These pipes and lines have different diameters and specifications and are used to transmit hydraulic oil, coolant, air pressure or conductive signals, etc.
[0003] During the use and maintenance of CNC machine tools, the rationality of pipeline layout and the neatness of lines directly affect the operating efficiency and safety of machine tools. Traditional pipeline layout methods often lack flexibility and standardization, resulting in a messy layout of pipelines, which not only affects the ventilation and heat dissipation inside the machine tool, but may also cause interference between pipelines, increasing the difficulty of maintenance and replacement. In addition, the fixing method of pipelines and lines mostly adopts hard connection. When it is necessary to adjust or add pipelines, this fixing method is extremely inconvenient and often takes a lot of time to rewire, which seriously slows down the production progress.
[0004] Therefore, how to design a pipe-through structure that can adapt to pipes and lines of different diameters and can be adjusted quickly and flexibly has become an urgent problem to be solved. Especially for CNC machine tools with high requirements for working environment and fast production cycle, a pipe-through structure that can be freely adjusted and modularly designed will greatly improve its layout efficiency and maintenance convenience, and will also enhance the aesthetics and integrity of CNC machine tools. Summary of the invention
[0005] The main purpose of the present invention is to provide a pipe threading assembly and a pipe threading device having the same, so as to solve the problem in the prior art that the pipe layout mode in a CNC machine tool is difficult to adapt to pipes and lines of different diameters.
[0006] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, there is provided a tube threading assembly, comprising: a main structure, on which a splicing structure for splicing with the main structure of another tube threading assembly is provided; a tube threading and wire passing structure, which encloses a through hole for a wire body to pass through, and the size of the through hole can be adjusted to accommodate wire bodies of different diameters; a connecting structure, which is respectively connected to the main structure and the tube threading and wire passing structure to install the tube threading and wire passing structure on the main structure; wherein at least a part of the connecting structure can be deformed to deform with the change of the size of the through hole.
[0007] Furthermore, the tube-through and wire-through structure is a tubular structure, and at least a portion of the tube-through and wire-through structure is made of an elastic material so that the size of the through hole can be adjusted through the deformation of the tube-through and wire-through structure.
[0008] Furthermore, the connecting structure includes a plurality of connecting components, the main structure includes an installation cavity, the tube and wire passing structure is located in the installation cavity, and a plurality of connecting components are arranged around the tube and wire passing structure, one end of each connecting component is connected to the tube and wire passing structure, and the other end of the connecting component is connected to the inner wall of the installation cavity; wherein, at least a portion of each connecting component is deformably arranged so as to deform as the size of the through hole changes.
[0009] Further, at least a portion of the connecting component is made of elastic material so as to be deformed as the size of the through hole changes.
[0010] Further, each connecting component is a spring component.
[0011] Furthermore, the splicing structure includes an inserting protrusion and an inserting groove, and the shapes of the inserting protrusion and the inserting groove match each other so that the inserting protrusion of one tube-penetrating assembly can be inserted into the inserting groove of another tube-penetrating structure.
[0012] Furthermore, the plug-in protrusion includes a connecting block and a limiting plate that are connected to each other, one end of the connecting block is connected to the outer wall of the main structure, and the other end of the connecting block is connected to the limiting plate; along a predetermined direction, the opposite ends of the limiting plate protrude from the opposite side walls of the connecting block; the plug-in groove includes a connecting groove and a limiting groove that are connected to each other, the connecting groove is adapted to the connecting block, and the limiting groove is adapted to the limiting plate.
[0013] Furthermore, the outer wall surface of the main structure includes a first side wall and a second side wall, a third side wall and a fourth side wall, the first side wall is arranged opposite to the second side wall, the third side wall is arranged opposite to the fourth side wall, the first side wall and the second side wall are both provided with plug-in protrusions, and the third side wall and the fourth side wall are both provided with plug-in grooves.
[0014] Furthermore, the main structure is a rectangular structure; and / or a pipeline label is provided on the main structure.
[0015] Furthermore, another aspect of the present invention provides a pipe penetration device, comprising a plurality of the above-mentioned pipe penetration assemblies, wherein two adjacent pipe penetration assemblies are spliced with each other via splicing structures on their respective main structures.
[0016] Applying the technical solution of the present invention, the present invention provides a tube threading assembly, comprising: a main structure, on which a splicing structure for splicing with the main structure of another tube threading assembly is provided; a tube threading and wire passing structure, which encloses a through hole for a wire body to pass through, and the size of the through hole can be adjusted to accommodate wire bodies of different diameters; a connecting structure, which is respectively connected to the main structure and the tube threading and wire passing structure to install the tube threading and wire passing structure on the main structure; wherein at least a part of the connecting structure can be deformed to deform with changes in the size of the through hole. In this way, the present invention can adapt to wires of different diameters by providing a through hole with adjustable size. Whether it is a hydraulic oil pipe, a coolant pipe, a pneumatic pipe or a conductive signal line, it can pass through the pipe-through assembly of the present invention, which greatly improves the flexibility and adaptability of the pipeline layout; and the splicing structure on the main structure of the present invention allows multiple pipe-through assemblies to be conveniently spliced and combined to form a larger or more complex pipe-through wire structure, which meets the needs of diversified layout of pipelines and lines inside and around CNC machine tools, and is convenient for increasing or decreasing the number of modules according to actual conditions to achieve rapid layout adjustment; the connection structure is designed to be at least partially deformable and can be deformed with the change of the size of the through hole, ensuring a stable connection between the pipe-through wire structure and the main structure, and even when the size of the through hole is adjusted, the stability of the entire pipe-through assembly can be maintained. The problem that the pipeline layout method in CNC machine tools in the prior art is difficult to adapt to pipelines and lines of different diameters is effectively solved. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:
[0018] Figure 1 It shows a schematic diagram of the overall structure of a pipe threading assembly according to an embodiment of the pipe threading assembly and a pipe threading device having the same according to the present invention; and
[0019] Figure 2 A schematic diagram of the overall structure of a pipe threading device in one direction according to an embodiment of a pipe threading assembly and a pipe threading device having the same according to the present invention is shown;
[0020] Figure 3 A schematic diagram of the overall structure of a pipe threading device in another direction is shown according to an embodiment of a pipe threading assembly and a pipe threading device having the same according to the present invention.
[0021] The above drawings include the following reference numerals:
[0022] 10. Main structure; 20. Pipe-through wire structure; 30. Through hole; 40. Connection structure; 50. Plug-in protrusion; 60. Plug-in groove;
[0023] 410. Connecting parts;
[0024] 110. Install the cavity;
[0025] 510, connecting block; 520, limiting plate;
[0026] 610, connecting groove; 620, limiting groove;
[0027] 120. First side wall; 130. Second side wall; 140. Third side wall; 150. Fourth side wall; 160. Pipeline label. DETAILED DESCRIPTION
[0028] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.
[0029] like Figures 1 to 3 As shown, the tube threading assembly of the present invention includes: a main structure 10, on which a splicing structure for splicing with the main structure 10 of another tube threading assembly is provided; a tube threading and wire passing structure 20, which encloses a through hole 30 for a wire body to pass through, and the size of the through hole 30 can be adjusted to accommodate wire bodies of different diameters; a connecting structure 40, which is respectively connected to the main structure 10 and the tube threading and wire passing structure 20 to install the tube threading and wire passing structure 20 on the main structure 10; wherein, at least a portion of the connecting structure 40 can be deformably arranged to deform with the change in the size of the through hole 30.
[0030] It can be seen that the present invention can adapt to wires of different diameters by providing a through hole 30 with an adjustable size. Whether it is a hydraulic oil pipe, a coolant pipe, a pneumatic pipe or a conductive signal line, it can pass through the pipe-through assembly of the present invention, which greatly improves the flexibility and adaptability of the pipeline layout; and the splicing structure on the main structure 10 of the present invention allows multiple pipe-through assemblies to be conveniently spliced and combined to form a larger or more complex pipe-through wire structure, which meets the needs of diversified layout of pipelines and lines inside and around CNC machine tools, and is convenient to increase or decrease the number of modules according to actual conditions to achieve rapid layout adjustment; the connection structure 40 is designed to be at least partially deformable and can be deformed with the size of the through hole 30, ensuring a stable connection between the pipe-through wire structure 20 and the main structure 10, and even when the size of the through hole 30 is adjusted, the stability of the entire pipe-through assembly can be maintained. It effectively solves the problem that the pipeline layout method in CNC machine tools in the prior art is difficult to adapt to pipelines and lines of different diameters.
[0031] Preferably, the tube-through wire structure 20 is a tubular structure, and at least a portion of the tube-through wire structure 20 is made of an elastic material, so that the size of the through hole 30 can be adjusted by the deformation of the tube-through wire structure 20. The use of the elastic material makes the size adjustment of the through hole smoother, avoids possible damage to the wire body caused by hard materials during the adjustment process, and improves the protection effect on the wire body.
[0032] like Figure 1 As shown, the connection structure 40 includes a plurality of connection components 410, the main structure 10 includes an installation cavity 110, the pipe-through wire structure 20 is located in the installation cavity 110, and a plurality of connection components 410 are arranged around the pipe-through wire structure 20, one end of each connection component 410 is connected to the pipe-through wire structure 20, and the other end of the connection component 410 is connected to the inner wall of the installation cavity 110; the connection component 410 is arranged around the pipe-through wire structure 20, so that the pipe-through wire structure can be stably installed in the installation cavity 110 of the main structure 10, and at the same time, this design method facilitates the rapid installation and disassembly of a single module, and improves the flexibility and efficiency of modular installation. Among them, at least part of each connection component 410 is deformably arranged to deform with the change of the size of the through hole 30. The deformable design of the connection component 410 can automatically adjust its shape with the change of the size of the through hole 30, ensuring that the structural stability and tightness of the assembly can be maintained even in the process of passing wires of different diameters, thereby enhancing the dynamic adaptability of the overall system.
[0033] Preferably, at least part of the connecting member 410 is made of elastic material so as to deform with the size of the through hole 30. The connecting member 410 made of elastic material can provide a buffering effect when adjusting the size of the through hole, reduce the impact force during the adjustment process, protect the wire body and the tube assembly itself, and reduce the stress on the tube assembly itself.
[0034] Preferably, each connecting member 410 is a spring member. The use of the spring member not only provides elastic support, but also can automatically adjust according to the change of the through hole size, making the adjustment process more convenient, and is suitable for occasions where the through hole size needs to be quickly adjusted.
[0035] like Figure 1 to Figure 2As shown, the splicing structure includes a plug-in protrusion 50 and a plug-in groove 60, and the shapes of the plug-in protrusion 50 and the plug-in groove 60 match each other, so that the plug-in protrusion 50 of one tube-penetrating assembly is inserted into the plug-in groove 60 of another tube-penetrating structure. The matching design of the plug-in protrusion 50 and the plug-in groove 60 makes the splicing between tube-penetrating assemblies simple and quick, without the need for complex tools or additional fixings, and a stable connection can be achieved by simply inserting the protrusion into the groove, which greatly shortens the time for layout adjustment and expansion; and the connection between the tube-penetrating assemblies is stable and reliable, and the layout stability can be maintained even when the CNC machine tool is running at high speed or in a vibration environment, to prevent the pipeline from loosening or dislocation.
[0036] like Figure 1 and Figure 3 As shown, the plug-in protrusion 50 includes a connecting block 510 and a limiting plate 520 that are interconnected, one end of the connecting block 510 is connected to the outer wall of the main structure 10, and the other end of the connecting block 510 is connected to the limiting plate 520; along a predetermined direction, the opposite ends of the limiting plate 520 protrude from the opposite two side walls of the connecting block 510; the plug-in groove 60 includes a connecting groove 610 and a limiting groove 620 that are interconnected, the connecting groove 610 is adapted to the connecting block 510, and the limiting groove 620 is adapted to the limiting plate 520. The precise matching between the connecting block 510 and the connecting groove 610, and the limiting function of the limiting plate 520 and the limiting groove 620 ensure the high-precision positioning of the tube assembly during the splicing process, thereby improving the stability and reliability of the connection, and effectively preventing the loosening or falling off of the pipeline due to improper connection; through the cooperation of the connecting block 510 and the limiting plate 520, the tube assembly can achieve multi-directional splicing while maintaining a stable connection, adapting to the complex and changeable internal structure and production requirements of CNC machine tools; when the limiting plate 520 is inserted into the limiting groove 620, the sealing between the modules is further improved, preventing external dust or impurities from entering the interior of the pipeline, ensuring the cleanliness of the pipeline and extending its service life.
[0037] like Figure 3As shown, the outer wall surface of the main structure 10 includes a first side wall 120, a second side wall 130, a third side wall 140 and a fourth side wall 150. The first side wall 120 is arranged opposite to the second side wall 130, and the third side wall 140 is arranged opposite to the fourth side wall 150. The first side wall 120 and the second side wall 130 are both provided with plug-in protrusions 50, and the third side wall 140 and the fourth side wall 150 are both provided with plug-in grooves 60. The present invention is provided with splicing structures, i.e., plug-in protrusions 50 and plug-in grooves 60, on the four sides of the main structure 10, allowing the pipe-through components to be spliced from multiple directions, greatly improving the flexibility and diversity of the layout design, and being able to adapt to complex spatial layout requirements. In addition, the protrusions and grooves are simultaneously provided on the opposite side walls, so that no matter from which direction the splicing is made, the connection between the pipe-through components can be ensured to be stable, the stability of the entire layout is enhanced, and the vibration or displacement problems caused by improper pipeline layout are reduced.
[0038] In one embodiment of the present invention, the main structure 10 is a rectangular structure, and the main body design of the rectangular structure is convenient for splicing and layout; and / or a pipeline label 160 is provided on the main structure 10, and the setting of the pipeline label 160 facilitates the identification and management of the line body, and is suitable for occasions where the line body needs to be classified and managed.
[0039] The present invention also provides a pipe threading device, comprising a plurality of the above-mentioned pipe threading assemblies, wherein two adjacent pipe threading assemblies are spliced with each other through the splicing structures on their respective main structures. The modular design of the pipe threading device allows the user to freely increase or decrease the number and layout of the pipe threading assemblies according to actual needs, thereby easily coping with various complex pipeline layout requirements. Whether adding new pipelines or adjusting existing layouts, it can be quickly implemented, improving the scalability and adaptability of the system, greatly improving the flexibility and diversity of pipeline layout, and meeting specific needs in different application scenarios.
[0040] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:
[0041] The tube threading assembly of the present invention comprises: a main structure 10, on which a splicing structure for splicing with the main structure 10 of another tube threading assembly is provided; a tube threading and wire passing structure 20, which encloses a through hole 30 for a wire body to pass through, and the size of the through hole 30 can be adjusted to accommodate wire bodies of different diameters; a connecting structure 40, which is respectively connected to the main structure 10 and the tube threading and wire passing structure 20 to install the tube threading and wire passing structure 20 on the main structure 10; wherein, at least a portion of the connecting structure 40 can be deformably arranged to deform as the size of the through hole 30 changes.
[0042] It can be seen that the present invention can adapt to wires of different diameters by providing a through hole 30 with an adjustable size. Whether it is a hydraulic oil pipe, a coolant pipe, a pneumatic pipe or a conductive signal line, it can pass through the pipe-through assembly of the present invention, which greatly improves the flexibility and adaptability of the pipeline layout; and the splicing structure on the main structure 10 of the present invention allows multiple pipe-through assemblies to be conveniently spliced and combined to form a larger or more complex pipe-through wire structure, which meets the needs of diversified layout of pipelines and lines inside and around CNC machine tools, and is convenient to increase or decrease the number of modules according to actual conditions to achieve rapid layout adjustment; the connection structure 40 is designed to be at least partially deformable and can be deformed with the size of the through hole 30, ensuring a stable connection between the pipe-through wire structure 20 and the main structure 10, and even when the size of the through hole 30 is adjusted, the stability of the entire pipe-through assembly can be maintained. It effectively solves the problem that the pipeline layout method in CNC machine tools in the prior art is difficult to adapt to pipelines and lines of different diameters.
[0043] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.
[0044] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.
[0045] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.
[0046] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.
[0047] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.
[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A pipe threading assembly, characterized in that: include: A main structure (10), wherein the main structure (10) is provided with a splicing structure for splicing with a main structure (10) of another tube-threading assembly; A pipe-through wire structure (20), wherein the pipe-through wire structure (20) forms a through hole (30) for a wire to pass through, and the size of the through hole (30) is adjustable to accommodate wires of different diameters; A connecting structure (40), the connecting structure (40) being connected to the main structure (10) and the pipe-through-wire structure (20) respectively, so as to install the pipe-through-wire structure (20) on the main structure (10); Wherein, at least a portion of the connecting structure (40) is configured to be deformable so as to deform as the size of the through hole (30) changes.
2. The tube threading assembly according to claim 1, characterized in that: The tube-through and wire-through structure (20) is a tubular structure, and at least a portion of the tube-through and wire-through structure (20) is made of an elastic material so that the size of the through hole (30) can be adjusted through the deformation of the tube-through and wire-through structure (20).
3. The tube threading assembly according to claim 1, characterized in that: The connection structure (40) includes a plurality of connection components (410), the main structure (10) includes an installation cavity (110), the pipe-through-wire structure (20) is located in the installation cavity (110), and the plurality of connection components (410) are arranged around the pipe-through-wire structure (20), one end of each of the connection components (410) is connected to the pipe-through-wire structure (20), and the other end of the connection component (410) is connected to the inner wall of the installation cavity (110); wherein at least a portion of each of the connection components (410) is deformably arranged so as to deform as the size of the through hole (30) changes.
4. The tube threading assembly according to claim 3, characterized in that: At least a portion of the connecting component (410) is made of an elastic material so as to deform as the size of the through hole (30) changes.
5. The tube threading assembly according to claim 3, characterized in that: Each of the connecting components (410) is a spring component.
6. The tube threading assembly according to any one of claims 1 to 5, characterized in that: The splicing structure comprises an inserting protrusion (50) and an inserting groove (60), and the shapes of the inserting protrusion (50) and the inserting groove (60) match each other so that the inserting protrusion (50) of one pipe threading assembly can be inserted into the inserting groove (60) of another pipe threading structure.
7. The tube threading assembly according to claim 6, characterized in that: The plug-in protrusion (50) comprises a connecting block (510) and a limiting plate (520) which are connected to each other, one end of the connecting block (510) is connected to the outer wall of the main structure (10), and the other end of the connecting block (510) is connected to the limiting plate (520); along a predetermined direction, the opposite ends of the limiting plate (520) protrude from the opposite side walls of the connecting block (510); the plug-in groove (60) comprises a connecting groove (610) and a limiting groove (620) which are connected to each other, the connecting groove (610) is adapted to the connecting block (510), and the limiting groove (620) is adapted to the limiting plate (520).
8. The tube threading assembly according to claim 7, characterized in that: The outer wall surface of the main structure (10) comprises a first side wall (120), a second side wall (130), a third side wall (140) and a fourth side wall (150); the first side wall (120) is arranged opposite to the second side wall (130); the third side wall (140) is arranged opposite to the fourth side wall (150); the first side wall (120) and the second side wall (130) are both provided with the plug-in protrusion (50); and the third side wall (140) and the fourth side wall (150) are both provided with the plug-in groove (60).
9. The tube threading assembly according to any one of claims 1 to 5, characterized in that: The main structure (10) is a rectangular structure; and / or A pipeline label (160) is provided on the main structure (10).
10. A pipe threading device, characterized in that: A pipe threading assembly comprising a plurality of claims 1 to 9, wherein: Two adjacent tube-penetrating assemblies are spliced with each other through splicing structures on their respective main structures.
Citation Information
Patent Citations
Optical fiber and cable taking up and paying off device
CN110498304A
Wire passing structure, air conditioner outdoor unit and air conditioner with air conditioner outdoor unit
CN113285409A
Exempt from wear -resisting cable of poling
CN205211466U
Pre-embedded clamping and supporting device for mounting building electromechanical pipeline
CN215635433U
Splicing limiting jig for wire harness locking
CN215834672U