Cable fixing structure and charging pile

Abstract

The utility model relates to charging pile technical field, concretely relates to a cable fixing structure and charging pile. The utility model provides a cable fixing structure, including the clamp assembly, two locking assemblies and a plurality of fasteners. The clamp assembly includes the first clamp and the second clamp of detachable connection, and the first clamp and the second clamp all include the first connecting portion, the body portion and the second connecting portion that connect in proper order, the body portion is opened with the installation slot for accommodating cable and a plurality of installation through -hole for installing fastener, and the first connecting portion and the second connecting portion all include the threaded connection section and the elastic adjusting section that connect in proper order. Two locking assemblies are respectively set on the first connecting portion and the second connecting portion, and the inner wall of locking assembly is provided with locking thread, and locking thread is connected with threaded connection section, and locking assembly at least partly covers threaded connection section and elastic adjusting section. The utility model solves the technical problem that the existing cable fixing device is difficult to adapt to the cable of different outer diameters.

Description

Technical Field

[0001] This utility model relates to the field of charging pile technology, specifically to a cable fixing structure and a charging pile. Background Technology

[0002] With the rapid development of electric vehicles, charging stations, as supporting infrastructure, have experienced explosive growth. During use, the management and securing of charging cables directly impacts user experience and equipment safety. Currently, common cable securing devices on the market primarily employ a clamp structure combined with a bushing design.

[0003] However, due to the significant differences in the outer diameter of charging cables of different power levels, various sizes of bushings are required for compatibility. This not only increases material costs but also complicates inventory management. Furthermore, the frequent replacement of bushings of different sizes during assembly severely impacts assembly efficiency and easily leads to mismatches. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a cable fixing structure and charging pile, which solves the technical problem that the existing cable fixing device is difficult to adapt to cables with different outer diameters.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: This utility model provides a cable fixing structure, including a clamp assembly, two locking components, and multiple fasteners. The clamp assembly includes a detachably connected first clamp and a second clamp. Both the first and second clamps include a first connecting portion, a body portion, and a second connecting portion connected in sequence. The body portion has an installation groove for accommodating the cable and multiple mounting through holes for installing the fasteners. Both the first and second connecting portions include a threaded connecting section and an elastic adjustment section connected in sequence. The two locking components are respectively sleeved on the first and second connecting portions. The inner wall of each locking component is provided with locking threads, which engage with the threaded connecting sections. The locking components at least partially cover the threaded connecting sections and the elastic adjustment sections.

[0006] In one possible implementation, the locking assembly includes a first locking member and a second locking member. The first locking member and the second locking member are rotatably connected on one side and have a third connecting portion extending from the other side. The first locking member and the second locking member are detachably connected through the third connecting portion. The inner walls of both the first locking member and the second locking member are provided with locking threads.

[0007] In one possible implementation, the third connecting part is provided with a connecting through hole, and the first locking member and the second locking member are connected by the fastener passing through the connecting through hole.

[0008] In one possible implementation, the ends of the first locking member and the second locking member are provided with guide portions, which at least partially abut against the elastic adjustment section.

[0009] In one possible implementation, the cable fixing structure further includes a plurality of bushings disposed on the inner wall of the elastic adjustment section.

[0010] In one possible implementation, the wall of the mounting groove is provided with anti-slip texture.

[0011] In one possible implementation, the mounting slot is arc-shaped.

[0012] This utility model also provides a charging pile, including a charging pile body, a charging cable disposed on the charging pile body, and the aforementioned cable fixing structure, wherein the cable fixing structure is sleeved on the charging cable.

[0013] In one possible implementation, the charging pile body is provided with a connector, and the cable fixing structure is detachably connected to the connector.

[0014] The beneficial effect of this utility model is that, compared with the prior art, this utility model uses a detachable clamp assembly and a locking assembly to cooperate, and utilizes an elastic adjustment section and a locking thread to achieve precise adjustment of cable tightness, while adapting to cables of different outer diameters, thus solving the technical problem that existing cable fixing devices are difficult to adapt to cables of different outer diameters. Attached Figure Description

[0015] Figure 1 This utility model provides a schematic diagram of a cable fixing structure and a charging cable assembly structure.

[0016] Figure 2 This is an exploded view of a cable fixing structure provided by the present invention.

[0017] Figure 3 This is an exploded structural diagram of a clamp assembly provided by this utility model.

[0018] Figure 4 This is a structural schematic diagram of a locking component provided by the present invention.

[0019] Figure 5 This is an exploded structural diagram of a locking component provided by the present invention.

[0020] Figure 6This is a schematic diagram of the assembly structure of a cable fixing structure and a charging cable from a cross-sectional perspective, which is provided by this utility model.

[0021] Figure 7 for Figure 6 A magnified view of a portion of position A in the diagram.

[0022] Attached image labels: 1. Cable fixing structure; 11. Clamp assembly; 111. First clamp; 112. Second clamp; 113. First connecting part; 114. Body part; 1141. Mounting groove; 1142. Mounting through hole; 115. Second connecting part; 116. Threaded connecting section; 117. Elastic adjustment section; 12. Locking assembly; 121. First locking element; 122. Second locking element; 123. Third connecting part; 1231. Connecting through hole; 124. Guide part; 13. Fastener; 14. Locking thread; 15. Bushing; 21. Charging cable. Detailed Implementation

[0023] To solve the above-mentioned technical problems, this utility model provides a cable fixing structure and a charging pile. The technical solution and embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0024] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0025] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation", "connection" and "joining" should be interpreted broadly, for example, they can refer to fixed connection, detachable connection, or integral connection; for those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0026] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0027] In traditional charging pile cable fixing devices, adapting to cables of different outer diameters requires multiple specifications of bushings. Due to the significant differences in the outer diameter of charging cables, a single bushing specification cannot meet the clamping requirements of different cable diameters, resulting in the production line needing to stock a large number of bushings of different sizes. The complexity of material management increases exponentially with the increase in the number of specifications, significantly increasing warehouse space occupancy, and the frequent bushing replacements during assembly directly affect the production line cycle time. More seriously, manual bushing selection carries the risk of misinstallation; incorrect matching can lead to cable fixing failure or localized stress concentration.

[0028] If the above issues are not addressed, the overall efficiency of the production line will continue to be limited by the physical bottleneck of manual operation, and material management costs will continue to rise as the product line expands. Incorrect assembly leading to charging gun cable fixation failure may cause charging gun detachment accidents, directly affecting the safety of charging pile use. Furthermore, the inventory pressure of multi-specification bushings will restrict the feasibility of the company's transformation to a customized, small-batch production model, causing it to lose its competitive advantage in rapidly responding to customer needs.

[0029] Faced with the aforementioned problems, this application first considers how to achieve wire diameter adaptation without relying on multi-specification bushings. Traditional solutions involve replacing bushings to match the wire diameter, but this method suffers from core drawbacks such as complex material management and low assembly efficiency. To address this, this application attempts a breakthrough at the structural design level: by introducing an elastic deformation mechanism into the clamp assembly and applying continuously adjustable radial pressure using the locking assembly, the bushing can undergo adaptive deformation, potentially covering a range of wire diameters. Further analysis reveals that simply adding elastic elements, while improving adaptability, can lead to insufficient locking force or structural instability. Therefore, it is necessary to combine elastic adjustment with rigid locking, achieving precise control of the locking force through threaded engagement. Ultimately, a combination structure of threaded connection sections and elastic adjustment sections at both ends of the clamp is chosen, along with a rotatable locking assembly, forming a composite mechanism that can both generate elastic deformation and maintain stable locking.

[0030] like Figures 1 to 5As shown, this utility model provides a cable fixing structure 1, including a clamp assembly 11, two locking assemblies 12, and multiple fasteners 13. The clamp assembly 11 includes a detachably connected first clamp 111 and a second clamp 112. Both the first clamp 111 and the second clamp 112 include a first connecting portion 113, a body portion 114, and a second connecting portion 115 connected in sequence. The body portion 114 has an installation groove 1141 for accommodating cables and multiple installation through holes 1142 for installing the fasteners 13. Both the first connecting portion 113 and the second connecting portion 115 include a threaded connecting section 116 and an elastic adjustment section 117 connected in sequence. The two locking assemblies 12 are respectively sleeved on the first connecting portion 113 and the second connecting portion 115. The inner wall of the locking assembly 12 is provided with a locking thread 14, which engages with the threaded connecting section 116. The locking assembly 12 at least partially covers the threaded connecting section 116 and the elastic adjustment section 117.

[0031] The core innovation of this application lies in the use of the threaded engagement structure of the split clamp and locking component 12, and the deformation capability of the elastic adjustment section 117, so that a single clamp can be adapted to cables with different outer diameters, reducing the variety of bushing specifications 15, and lowering material costs and assembly complexity.

[0032] When cable securing is required, the cable is first placed into the mounting slot 1141. Then, the first clamp 111 and the second clamp 112 are connected using fasteners 13 to form a complete clamp assembly 11. Next, the locking assembly 12 is rotated to engage with the threaded connection section 116. As the locking assembly 12 rotates, the elastic adjustment section 117 is gradually compressed, thereby applying radial pressure to the cable. Due to the presence of the elastic adjustment section 117, this structure can accommodate cables of different diameters.

[0033] The threaded connection section 116 provides a stable locking force, while the flexible adjustment section 117 provides adaptive deformation capability. This combined design allows the structure to adapt to different cable specifications while ensuring a locking effect. The locking assembly 12, covering both the threaded connection section 116 and the flexible adjustment section 117, further enhances the overall structural stability.

[0034] Through the above-described solution, this application achieves adaptable fixing of cables with different diameters. The structure, through the combined design of the threaded connection section 116 and the elastic adjustment section 117, ensures both stable locking force and adaptable deformation capability. This design reduces reliance on various specifications of bushings 15, simplifies material management, and improves assembly efficiency. Simultaneously, the continuously adjustable locking mechanism avoids the risk of misinstallation that might result from manual selection of bushings 15, improving the reliability and safety of cable fixing. Furthermore, the adaptable design of this structure facilitates customized product production, enhancing the company's ability to quickly respond to market demands.

[0035] See Figure 4 and Figure 5 Furthermore, the locking assembly 12 includes a first locking member 121 and a second locking member 122. The first locking member 121 and the second locking member 122 are rotatably connected on one side, and a third connecting part 123 is provided on the other side. The first locking member 121 and the second locking member 122 are detachably connected through the third connecting part 123. The inner walls of the first locking member 121 and the second locking member 122 are both provided with locking threads 14.

[0036] like Figure 5 As shown, specifically, the third connecting part 123 has a connecting through hole 1231, and the first locking member 121 and the second locking member 122 are connected by fastener 13 passing through the connecting through hole 1231.

[0037] The first locking member 121 and the second locking member 122 are hinged on one side via a pivot, forming an openable semi-enclosed structure. The third connecting part 123 is located on the side away from the pivot, and its surface has a connecting through hole 1231. A fastener 13 passes through the connecting through hole 1231 to achieve a detachable connection. Locking threads 14 are distributed on the inner walls of the first locking member 121 and the second locking member 122, forming a continuous threaded channel.

[0038] Specifically, during assembly, the first locking member 121 and the second locking member 122 are rotated and unfolded around the pivot. After the locking thread 14 and the threaded connection section 116 are initially aligned, the locking assembly 12 is closed. The third connecting part 123 is fixed by the fastener 13 passing through the connecting through hole 1231. At this time, the locking thread 14 and the threaded connection section 116 form a complete thread engagement. When the locking assembly 12 is rotated, the guide part 124 contacts the elastic adjustment section 117, generating radial pressure, which causes the elastic adjustment section 117 to drive the bushing 15 to retract and clamp the cable. The split locking structure enables quick assembly and disassembly, avoiding the overall tightening operation and reducing the risk of thread misalignment.

[0039] The split structure and hinged connection of the locking assembly 12 allow for flexible opening and closing, facilitating its placement on the clamp assembly 11. The locking threads 14 on the inner wall engage with the clamp assembly 11, ensuring a secure connection. The connection strength is guaranteed by using fasteners 13 passing through the connecting through-holes 1231. This connection method also facilitates disassembly and maintenance; when the locking assembly 12 needs replacement or repair, only the fasteners 13 need to be removed. The overall structure is compact and easy to operate, effectively improving the practicality and reliability of the cable fixing structure 1.

[0040] See Figure 5 and Figure 7Furthermore, the ends of the first locking member 121 and the second locking member 122 are provided with guide portions 124, and the guide portions 124 at least partially abut against the elastic adjustment section 117.

[0041] The guide portion 124 is a sloped or arc-shaped structure extending outward from the end of the locking member, and its inner wall forms a surface contact with the outer surface of the elastic adjustment section 117. When the locking member rotates, the contact area between the guide portion 124 and the elastic adjustment section 117 gradually expands along the axial direction, and the contact pressure changes from a point distribution to a linear distribution.

[0042] Specifically, after the left and right halves of the locking cap are closed by rotating the pivot, the inclined or arc-shaped surface of the guide portion 124 contacts the outer surface of the clamp elastic plate. When the locking cap rotates and presses down, the guide portion 124 slides along the surface of the clamp elastic plate, and the contact area expands from the end to the middle. The contact pressure is decomposed into axial clamping force and radial contraction force through the inclined or arc-shaped surface. The axial clamping force pushes the locking cap to screw in along the thread, and the radial contraction force causes the clamp elastic plate to produce uniform bending deformation. The deformation of the clamp elastic plate is converted into a matching pressure on the outer diameter of the cable through the bushing 15. Due to the uniform pressure distribution, the bushing 15 produces a consistent compressive deformation along the circumference, avoiding damage to the bushing 15 or indentations on the cable surface caused by local stress concentration.

[0043] The guide section 124 guides the locking assembly 12 along the correct path, preventing jamming or deviation during locking. This design improves the smoothness and reliability of the locking operation, making the cable more secure. Simultaneously, the contact between the guide section 124 and the elastic adjustment section 117 increases the overall structural stability, reducing potential shaking or loosening during use.

[0044] like Figure 2 and Figure 7 As shown, the cable fixing structure 1 further includes a plurality of bushings 15, which are disposed on the inner wall of the elastic adjustment section 117.

[0045] The bushing 15 is integrally molded from an elastic material, and its outer contour fits perfectly with the inner wall shape of the elastic adjustment section 117. The inner surface of the bushing 15 is designed as a smooth arc surface, and the outer surface is provided with positioning protrusions that form a snap-fit ​​structure with the grooves on the inner wall of the elastic adjustment section 117.

[0046] Specifically, the cable fixing structure 1 requires four bushings 15, which are installed inside the four elastic adjustment sections 117 of the two clamps to form a ring-shaped wrapping structure.

[0047] When the locking assembly 12 moves along the threaded connection section 116, its end guide surface compresses the elastic adjustment section 117, causing radial contraction. The bushing 15 on the inner wall of the elastic adjustment section 117 undergoes elastic deformation after compression, reducing its inner diameter and forming surface contact with the outer surface of the cable. The high coefficient of friction of the bushing 15 material effectively prevents axial slippage of the cable, while the radial pressure generated by the elastic deformation is evenly distributed on the contact surface between the bushing 15 and the cable. By adjusting the screw-in depth of the locking assembly 12, the compression amount of the bushing 15 can be controlled, allowing bushings of the same specification to adapt to cable outer diameter variations within a certain range. The snap-fit ​​structure between the bushing 15 and the elastic adjustment section 117 ensures that it does not undergo axial displacement during compression, and it can be quickly replaced by prying the positioning protrusion with a tool during disassembly.

[0048] See Figure 3 Specifically, the groove wall of the mounting groove 1141 is provided with anti-slip texture.

[0049] The anti-slip texture effectively prevents the cable from sliding or rotating within the mounting groove 1141, ensuring that the cable remains in the intended position. Simultaneously, the anti-slip texture does not damage the cable sheath, guaranteeing the cable's lifespan. Furthermore, the anti-slip texture increases the contact area between the inner wall of the mounting groove 1141 and the cable, promoting heat dissipation and extending the cable's lifespan.

[0050] Specifically, the mounting groove 1141 is arc-shaped.

[0051] When the clamp assembly 11 is closed, the charging gun cable is embedded in the arc-shaped mounting groove 1141, and the wall of the arc-shaped groove forms surface contact with the outer surface of the charging gun cable. When the locking assembly 12 applies pressure, the bushing 15 undergoes uniform elastic deformation due to the constraint of the arc-shaped groove wall, and the pressure generated by the deformation is evenly distributed along the circumference of the charging gun cable. The radius of curvature of the arc-shaped mounting groove 1141 is set to the median value of the standard outer diameter of the charging gun cable. When the locking assembly 12 is adjusted, the elastic adjustment section 117 drives the arc-shaped groove wall to generate radial displacement, so that the radius of curvature of the arc-shaped groove 1141 adapts to the actual outer diameter of the charging gun cable. Thus, during the tightening process, the contact area between the arc-shaped groove wall and the charging gun cable is always kept at its maximum, avoiding indentations on the cable surface and reducing the risk of local wear on the bushing 15.

[0052] The arc-shaped mounting groove 1141 fits more closely to the cylindrical outer surface of the cable, increasing the contact area and improving the stability of the cable fixation. Simultaneously, the arc-shaped structure disperses the fixing force, preventing localized pressure damage to the cable. Furthermore, the arc-shaped mounting groove 1141 facilitates quick cable installation and removal, improving operational convenience. Therefore, the arc-shaped mounting groove 1141 design of this application ensures both reliable cable fixation and ease of use.

[0053] like Figure 1 , Figure 6 and Figure 7 As shown, this utility model also provides a charging pile (not shown in the figure), including a charging pile body (not shown in the figure), a charging cable 21 disposed on the charging pile body and the aforementioned cable fixing structure 1, wherein the cable fixing structure 1 is sleeved on the charging cable 21.

[0054] The quick assembly and disassembly of the cable fixing structure 1 and the charging pile body avoids the need to replace the entire structure due to changes in the cable specifications, reduces the number of parts replacements in the assembly process, and lowers the risk of rework due to specification mismatch. The threaded connection of the locking component 12 and the deformation synergy of the elastic adjustment section 117 allow the cable fixing structure 1 to maintain its original clamping force adjustment function after disassembly, and can adapt to charging cables 21 with different outer diameters without recalibration.

[0055] In one alternative embodiment, a connector (not shown in the figure) is provided on the main body of the charging pile, and the cable fixing structure 1 is detachably connected to the connector.

[0056] The connector can be an installation base independent of the charging pile body. The installation base is pre-installed on the surface of the charging pile body by welding or bolting. The connector has a snap-fit ​​groove for accommodating the cable fixing structure 1. The cable fixing structure 1 is snapped into the snap-fit ​​groove, so that the cable fixing structure 1 and the connector can be detachably connected, so as to facilitate the storage of the charging cable 21 when not charging, thereby improving the user experience of the charging pile.

[0057] The above description is merely a preferred embodiment of the present utility model, and the specific embodiments described above are not intended to limit the present utility model. Various modifications and variations can be made within the scope of the technical concept of the present utility model. All refinements, modifications, or equivalent substitutions made by those skilled in the art based on the above description are within the scope of protection of the present utility model.

Claims

1. A cable fixing structure, characterized in that, Includes clamp assembly, two locking assemblies and multiple fasteners; The clamp assembly includes a detachably connected first clamp and a second clamp. Both the first clamp and the second clamp include a first connecting part, a body part and a second connecting part connected in sequence. The body part has an installation groove for accommodating cables and multiple installation through holes for installing the fasteners. Both the first connecting part and the second connecting part include a threaded connecting section and an elastic adjustment section connected in sequence. The two locking components are respectively sleeved on the first connecting part and the second connecting part. The inner wall of the locking component is provided with a locking thread, which is engaged with the threaded connecting section. The locking component at least partially covers the threaded connecting section and the elastic adjustment section.

2. The cable fixing structure according to claim 1, characterized in that, The locking assembly includes a first locking member and a second locking member. The first locking member and the second locking member are rotatably connected on one side, and a third connecting part is provided on the other side. The first locking member and the second locking member are detachably connected through the third connecting part. The inner walls of the first locking member and the second locking member are provided with the locking threads.

3. The cable fixing structure according to claim 2, characterized in that, The third connecting part is provided with a connecting through hole, and the first locking member and the second locking member are connected by the fastener passing through the connecting through hole.

4. The cable fixing structure according to claim 2, characterized in that, The ends of the first locking member and the second locking member are provided with guide portions, and the guide portions at least partially abut against the elastic adjustment section.

5. The cable fixing structure according to claim 1, characterized in that, The cable fixing structure also includes multiple bushings, which are disposed on the inner wall of the elastic adjustment section.

6. The cable fixing structure according to claim 1, characterized in that, The mounting groove has anti-slip textures on its walls.

7. The cable fixing structure according to claim 1, characterized in that, The mounting groove is arc-shaped.

8. A charging pile, characterized in that, The device includes a charging pile body, a charging cable mounted on the charging pile body, and a cable fixing structure as described in any one of claims 1 to 7, wherein the cable fixing structure is sleeved on the charging cable.

9. The charging pile according to claim 8, characterized in that, The charging pile body is provided with a connector, and the cable fixing structure is detachably connected to the connector.

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