Tank chain device for automobile seat wire harness

Abstract

The utility model discloses a tank chain device for an automobile seat wire harness, and belongs to the technical field of tank chains. The tank chain device is composed of a plurality of unit chain sections, and each unit chain section is provided with a left chain plate and a right chain plate. Each unit chain section further comprises a first connecting plate and a second connecting plate, and a wire harness cavity is further formed in each unit chain section. A left chain plate protruding part is formed on the left chain plate, and a left chain plate assembling hole is formed in the left chain plate protruding part. A right chain plate matching cavity is formed in the right chain plate, a right chain plate protruding block is formed on the right chain plate matching cavity, and a right chain plate assembling hole is further formed in the right chain plate. And chain section positioning sleeves which are fixedly matched with external positioning pieces are formed on the unit chain sections. The utility model has the advantages that the structure is compact, the assembly connection among a plurality of unit chain sections is conveniently and reliably realized, and the installation and maintenance of wire harnesses are facilitated; the clamping assembly of the unit chain sections and the external positioning pieces is effectively realized, and the moving tracks of the tank chain device and the wire harness are effectively and accurately limited.

Description

Technical Field

[0001] The utility model belongs to the technical field of tank chains, and particularly relates to a tank chain device for an automotive seat wire harness. Background Art

[0002] The tank chain, also known as a drag chain, is widely used in the fields of automated equipment such as vehicles, CNC machine tools, robotic arms, lifting and transportation equipment, and automated warehouses. The tank chain can play a good role in traction and protection for the wire harnesses, cables, oil pipes, gas pipes, and water pipes arranged therein. The vehicle wire harness protection tank chain is widely used in fields such as vehicle sliding doors, long-slide rail seats, and central control sliding screens. Since components such as vehicle sliding doors and long-slide rail seats need to move, the wire harness needs to move along with them during the movement. This requires the tank chain device to maintain a certain flexibility and flexibility to efficiently protect the wire harness and be able to maintain a certain rigidity to ensure the accuracy of movement.

[0003] Relevant technical information about rear folding seats in vehicles can be found in publicly available patent documents; the utility model document with the publication authorization number CN218456312U discloses a semi-open drag chain for protecting vehicle wiring harnesses, which includes a number of drag chain bodies connected end to end. A wiring harness is inserted inside the drag chain body. The drag chain body includes a first side plate and a second side plate. A connecting plate is connected between the first side plate and the second side plate. A fitting groove is provided on the outer wall of one side of the first side plate and the second side plate. A limiting plate is provided on the inner wall of the fitting groove, and a limiting block is provided on the surface of the limiting plate. Embedded grooves are provided on the inner walls of the other sides of the first side plate and the second side plate. A limiting groove is provided on the inner wall of the embedded groove, and a limiting hole is provided on the inner wall of the limiting groove. The limiting hole is adapted to the limiting block. Although it has the advantages of simple and easy installation, strong flexibility, and higher reliability in the cooperation of the drag chain, and the drag chain is designed as a semi-open structure, so that different installation methods can be selected according to needs during the installation process of the wiring harness to meet the installation requirements of different types of environments of the device; however, it still has the problems of complex structure and a large number of components, which not only results in higher assembly and production costs, but also has poor load-bearing capacity and structural stability. Moreover, when positioning it, a special connection and fixing component is required, which is inconvenient to install and cannot efficiently and accurately limit the movement of the vehicle wiring harness; while the Chinese patent document with the publication number CN215752246U introduces a drag chain for protecting vehicle wiring harnesses. The first side plate is arranged on one side of the two sides of the drag chain for protecting vehicle wiring harnesses, the second side plate is arranged on the opposite side of the first side plate, the connecting plate is arranged on the top of the drag chain for protecting vehicle wiring harnesses, and the connecting plate connects and fixes the centers of the tops of the first side plate and the second side plate. The second side plate and the first side plate are symmetrically arranged along the center axis of the drag chain for protecting vehicle wiring harnesses. The bottom plate is arranged at the bottom of the drag chain for protecting vehicle wiring harnesses, and the hook is arranged on the outer side of the first side plate. The hook structure of the drag chain for protecting vehicle wiring harnesses enables effective cooperation with the guide rail during assembly. The guiding structure at the end of the hook runs along the straightness of the guide rail. The fixing structure on the first side plate and the second side plate provides a fixing force to prevent the deflection during operation to ensure the wiring harness, and can effectively improve the installation efficiency. However, it still has the problem of a large number of components. Although the setting of the hook can ensure the cooperation between the drag chain and the guide rail, it still requires a special sliding groove to be opened on the guide rail, and there are still problems of inconvenient production and cumbersome assembly operations.

[0004] In view of the above situation, it is necessary to reasonably improve the existing structure of the tank chain for vehicle seat wiring harnesses. For this reason, the applicant has made a beneficial design, and the technical solution to be introduced below is generated under this background. Utility Model Content

[0005] The task of the present utility model is to provide a tank chain device for an automotive seat harness, which has high strength, good durability, a simple and compact structure, and stable operation. It helps to achieve convenient assembly through structural optimization, effectively improve the installation efficiency, and ensure the stability and reliability of the operation of the tank chain device. It is beneficial to achieve convenient and efficient positioning of the tank chain device by adding a chain link positioning sleeve, thereby effectively and accurately limiting the movement trajectories of the tank chain device and the harness, effectively reducing problems such as entanglement and jamming of the harness when the automotive seat moves, and improving the safety and reliability of use.

[0006] The task of the present utility model is completed as follows. A tank chain device for an automotive seat harness is composed of a plurality of unit chain links that are detachably and hingedly connected. On the left and right sides of each unit chain link, a left chain plate and a right chain plate are respectively provided, and the left chain plate and the right chain plate are arranged parallel to each other at intervals. The feature is that the unit chain link further includes a first connecting plate Ⅰ and a second connecting plate Ⅱ respectively connected to the two ends of the left chain plate and the right chain plate in the height direction. And inside the unit chain link and corresponding to the space between the left chain plate and the right chain plate, a wire harness cavity is formed that runs through its length direction. At one end of the left chain plate in the length direction, a left chain plate protrusion is convexly formed. The left chain plate protrusion is arranged opposite to the wire harness cavity, and a left chain plate assembly hole that runs through its thickness direction is opened on the left chain plate protrusion. And on the surface of the left chain plate opposite to the wire harness cavity and at a position away from the left chain plate protrusion in the length direction, a left chain plate assembly block is convexly formed. The shape and size of the left chain plate assembly block are adapted to the left chain plate assembly hole. And on the surface of the right chain plate opposite to the wire harness cavity and at the end position corresponding to the left chain plate assembly block, a right chain plate mating cavity is opened, and a right chain plate protrusion block is convexly formed on the right chain plate mating cavity. And on the right chain plate and at a position away from the right chain plate mating cavity in the length direction, a right chain plate assembly hole that runs through its thickness direction is opened. The shape of the right chain plate protrusion block is adapted to the shape of the right chain plate assembly hole. When two adjacent unit chain links are connected, the left chain plate assembly block of one unit chain link is rotationally mated with the left chain plate assembly hole of another unit chain link, and the right chain plate protrusion block of one unit chain link can be rotationally mated with the right chain plate assembly hole of another unit chain link. And on the unit chain link, a chain link positioning sleeve is convexly formed on the left chain plate, and the unit chain link is fixedly mated with an external positioning member through the chain link positioning sleeve.

[0007] In a specific embodiment of the present utility model, the chain condition positioning sleeve protrusion is formed on the surface of the left chain plate protrusion portion opposite to the wire harness cavity; a pair of positioning holes are provided on the chain condition positioning sleeve, and the two positioning holes penetrate through the front surface of the chain condition positioning sleeve, and the positioning holes are used for fixed cooperation with an external positioning member.

[0008] In another specific embodiment of the present utility model, the left chain plate and the right chain plate are symmetrically arranged with respect to the center line in the length direction of the first connecting plate Ⅰ.

[0009] In yet another specific embodiment of the present utility model, the left chain plate assembly block has a cylindrical shape structure, and the left chain plate assembly hole has a circular hole shape structure; and an obliquely inwardly provided left chain plate assembly block inclined portion is further formed on the left chain plate assembly block, and the left chain plate assembly block inclined portion is arranged from high to low from the end of the left chain plate assembly block axially away from the left chain plate body to the left chain plate body, and the setting of the left chain plate assembly block inclined portion facilitates the snap-fitting and fixing of the left chain plate assembly block and the left chain plate assembly hole.

[0010] In still another specific embodiment of the present utility model, the right chain plate protrusion block also has a cylindrical shape structure, and the right chain plate assembly hole also has a circular hole shape structure; and an obliquely inwardly provided right chain plate protrusion block inclined portion is also formed on the right chain plate protrusion block, and the setting of the right chain plate protrusion block inclined portion facilitates the snap-fitting and fixing of the right chain plate protrusion block and the right chain plate assembly hole.

[0011] In still another specific embodiment of the present utility model, the left chain plate assembly hole is provided on the center line in the length direction of the left chain plate body.

[0012] In a further specific embodiment of the present utility model, the right chain plate assembly hole is provided on the center line in the length direction of the right chain plate body.

[0013] In an even further specific embodiment of the present utility model, the left chain plate, the right chain plate, the first connecting plate Ⅰ and the second connecting plate Ⅱ are of an integrally formed structure.

[0014] The beneficial effects of the present utility model are as follows: First, adjacent two unit chain links can be hinged through the left chain plate and the right chain plate, which can greatly simplify the assembly structure of the tank chain device. The assembly method at the bottom of the vehicle seat can greatly simplify the assembly structure, effectively improve the installation efficiency. At the same time, the rotation between multiple unit chain links is smooth, so as to ensure the smoothness and reliability of the operation of the tank chain device during the movement of the vehicle seat, ensure its long towing cycle, fast and accurate operation, and improve the comfort of vehicle seat adjustment; In addition, by setting a chain link positioning sleeve on the unit chain link that can be snap-fitted with an external positioning part, the important nodes on the tank chain device can be conveniently snap-fitted with the positioning components on the vehicle. The wire harness can be incorporated into the tank chain device, and the wire harness can move together with the tank chain device, and the movement path of the tank chain device can be limited by multiple groups of limiting components, effectively reducing problems such as winding and jamming of the wire harness when the vehicle seat moves, and improving the safety and reliability of use, which has significant promotional significance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0016] Figure 2 is a structural schematic diagram of the unit chain link described in the present utility model;

[0017] Figure 3 is the unit chain link described in the present utility model;

[0018] In the figure: 1. Unit chain link; 2. Left chain plate, 21. Left chain plate protrusion, 211. Left chain plate assembly hole, 22. Left chain plate assembly block, 221. Oblique part of the left chain plate assembly block; 3. Right chain plate, 31. Right chain plate mating cavity, 311. Right chain plate protrusion block, 3111. Oblique part of the right chain plate protrusion block, 32. Right chain plate assembly hole; 4. First connecting plate I; 5. Second connecting plate II; 6. Wire harness cavity; 7. Chain link positioning sleeve, 71. Positioning hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] A detailed description will be given below in the form of embodiments, but the descriptions of the embodiments are not limitations on the solutions of the present utility model. Any formal but non-substantive equivalent transformation made based on the concept of the present utility model should be regarded as within the scope of the technical solutions of the present utility model.

[0020] In the following description, all concepts related to directions or orientations such as up, down, left, right, front, and back are with respect to the current Figure 1 position and state, and thus cannot be understood as special limitations on the technical solutions provided by the present utility model.

[0021] Please refer toFigures 1 to 3 , shows a tank chain device for a car seat wiring harness, the tank chain device is composed of a plurality of unit chain links 1 that realize detachable hinged connection, a left chain plate 2 and a right chain plate 3 are respectively arranged on the left and right sides of the unit chain link 1, and the left chain plate 2 and the right chain plate 3 are arranged in parallel with each other.

[0022] As the technical key points of the technical solution provided by the utility model: the aforementioned unit chain link 1 also includes a first connecting plate Ⅰ4 and a second connecting plate Ⅱ‌5 respectively connected to the ends of the left chain plate 2 and the right chain plate 3 in the height direction, and a wiring harness cavity 6 is formed inside the unit chain link 1 and corresponding to the left chain plate 2 and the right chain plate 3 to penetrate the length direction thereof, and a wiring harness is passed through the wiring harness cavity 6, one end of the wiring harness is connected to the seat button, and the other end is connected to the seat controller; at one end of the length direction of the left chain plate 2 A left chain plate protrusion 21 is also formed at the end position, and the left chain plate protrusion 21 is arranged opposite to the aforementioned wiring harness cavity 6, and a left chain plate assembly hole 211 is also opened on the left chain plate protrusion 21 and penetrates the thickness direction thereof, and a left chain plate assembly block 22 is also formed on the side surface of the left chain plate 2 opposite to the aforementioned wiring harness cavity 6 and at a position away from the aforementioned left chain plate protrusion 21 in its length direction, and the shape and size of the left chain plate assembly block 22 are adapted to the aforementioned left chain plate assembly hole 211; Figure 2 As shown in the figure, the left link plate protrusion 21 is protruding from the right end of the left link plate 2 body and is arranged in a circular plate structure, while the left end of the left link plate 2 is in a semicircular plate shape, and a circular assembly cavity is correspondingly formed on the rear portion of the left link plate protrusion 21 facing the wiring harness cavity 6. When two adjacent unit chain links 1 are hingedly connected, the left end portion of the left link plate 2 on the previous unit chain link 1 is cooperatively installed in the assembly cavity at the rear of the left link plate protrusion 21, and the left link plate assembly block 22 is rotatably connected in the left link plate assembly hole 211.

[0023] Please continue to see Figure 3 A right chain plate matching cavity 31 is provided on the surface of the right chain plate 3 on the side opposite to the harness cavity 6 and at the end position corresponding to the left chain plate assembly block 22, and a right chain plate protrusion block 311 is also formed on the right chain plate matching cavity 31, and a right chain plate assembly hole 32 is also provided on the right chain plate 3 and at a side position away from the right chain plate matching cavity 31 in the length direction thereof, which runs through the right chain plate assembly hole 32 in the thickness direction thereof, and the shape of the right chain plate protrusion block 311 is adapted to the shape of the right chain plate assembly hole 32; Figure 3As shown, the foregoing right link plate mating cavity 31 is formed at the right end of the foregoing right link plate 3 and has a circular groove structure, while the left end of the right link plate 3 has a semi-circular plate shape; when two adjacent unit chain links 1 are connected, the left link plate assembly block 22 of one foregoing unit chain link 1 is rotationally mated with the left link plate assembly hole 211 of another unit chain link 1, and the right link plate projection block 311 of one foregoing unit chain link 1 can be rotationally mated with the right link plate assembly hole 32 of another unit chain link 1, thereby realizing the articulated connection between the front and rear unit chain links 1, achieving the goal of facilitating the quick installation and disassembly of the tank chain device, and at the same time solving the problem that the installation and maintenance processes of cables or hoses in the prior art are cumbersome and time-consuming; and a chain link positioning sleeve 7 is formed and protrudes on the foregoing left link plate 2 of the foregoing unit chain link 1, and the unit chain link 1 can be fixedly mated with an external positioning member through the foregoing chain link positioning sleeve 7.

[0024] In this embodiment, the foregoing chain link positioning sleeve 7 protrudes on the surface of the foregoing left link plate protrusion 21 opposite to the foregoing wire harness cavity 6; a pair of positioning holes 71 are formed in the foregoing chain link positioning sleeve 7, and the two foregoing positioning holes 71 penetrate through the front surface of the foregoing chain link positioning sleeve 7, and the foregoing positioning holes 71 are used for fixed mating with an external positioning member; the setting of the foregoing chain link positioning sleeve 7 facilitates the positioning and fixing of the unit chain link 1 body. Through multiple groups of limit positioning components, the movement path of the tank chain device can be accurately limited, ensuring the assembly stability and movement reliability of the tank chain device as a whole with the vehicle seat. And the vehicle seat can stably and reliably drive the tank chain device to move during the movement process. And because the multiple unit chain links 1 on the tank chain device are reliably rotationally connected, the bending and shrinkage properties of its own whole can be effectively guaranteed, thereby greatly improving the free retraction and release of the wire harness during the movement process, effectively avoiding entanglement, and improving the safety of use.

[0025] Please refer to Figure 1 and Figure 2 , the foregoing left link plate 2 and the foregoing right link plate 3 are symmetrically arranged with respect to the central axis of the length direction of the foregoing first connecting plate Ⅰ4.

[0026] In this embodiment, the aforementioned left chain plate assembly block 22 is constructed in a cylindrical shape, and the aforementioned left chain plate assembly hole 211 is constructed in a circular hole shape; and an obliquely inwardly disposed left chain plate assembly block inclined portion 221 is further formed on the aforementioned left chain plate assembly block 22. The left chain plate assembly block inclined portion 221 is arranged from high to low from the end of the left chain plate assembly block 22 axially away from the left chain plate 2 body to the left chain plate 2 body. The highest point of the left chain plate assembly block inclined portion 221 and the end surface of the left chain plate assembly block 22 axially away from the left chain plate 2 body are on the same plane, and the lowest point of the left chain plate assembly block inclined portion 221 constitutes that the arrangement of the left chain plate assembly block inclined portion 221 facilitates the snap - fit fixation of the aforementioned left chain plate assembly block 22 and the aforementioned left chain plate assembly hole 211.

[0027] Furthermore, the aforementioned right chain plate protrusion block 311 is also constructed in a cylindrical shape, and the aforementioned right chain plate assembly hole 32 is also constructed in a circular hole shape; and an obliquely inwardly disposed right chain plate protrusion block inclined portion 3111 is also formed on the aforementioned right chain plate protrusion block 311. The arrangement of the right chain plate protrusion block inclined portion 3111 facilitates the snap - fit fixation of the aforementioned right chain plate protrusion block 311 and the aforementioned right chain plate assembly hole 32.

[0028] Please continue to refer to Figure 2 , the left chain plate assembly hole 211 is provided on the center line in the length direction of the left chain plate 2 body.

[0029] Please refer to Figure 3 , the aforementioned right chain plate assembly hole 32 is provided on the center line in the length direction of the aforementioned right chain plate 3 body.

[0030] Preferably, the aforementioned left chain plate 2, right chain plate 3, first connecting plate Ⅰ 4 and second connecting plate Ⅱ 5 are of an integrally formed structure; in this way, the overall structural strength of the unit chain link 1 can be greatly improved, and the unit chain link 1 can be made by plastic injection molding or metal liquid cooling molding methods, both of which are within the protection scope of this patent and are not specifically limited herein.

[0031] The implementation principle of the technical solution provided by the present utility model is as follows: during actual use, when the vehicle seat is adjusted and moved, since the unit chain link 1 on the tank chain device can be inserted and connected with components such as sliders on the vehicle seat, during the movement of the vehicle seat, it can drive multiple unit chain links 1 to move, causing the overall movement of the aforementioned tank chain device. The movement of the tank chain device will drive the wire harness passing through it. The wire harness stored in the tank chain device can effectively reduce problems such as wire harness entanglement and jamming during the movement of the vehicle seat.

Claims

1. A tank chain device for a car seat harness, the tank chain device comprising a plurality of unit chain links (1) that are detachably hingedly connected, a left chain plate (2) and a right chain plate (3) being respectively arranged on the left and right sides of the unit chain link (1), and the left chain plate (2) and the right chain plate (3) being arranged in parallel with each other at intervals; characterized in that: The unit chain link (1) further comprises a first connecting plate I (4) and a second connecting plate II (5) respectively connected to the end portions of the left chain plate (2) and the right chain plate (3) in the height direction, and a harness cavity (6) penetrating the length direction thereof is formed inside the unit chain link (1) and corresponding to between the left chain plate (2) and the right chain plate (3); a left chain plate protrusion (21) is convexly formed at one end portion of the left chain plate (2) in the length direction, and the left chain plate protrusion (21) is arranged opposite to the harness cavity (6), and A left chain plate assembly hole (211) is also provided on the left chain plate protrusion (21) and runs through the thickness direction thereof, and a left chain plate assembly block (22) is also convexly provided on a side surface of the left chain plate (2) opposite to the wiring harness cavity (6) and at a position away from the left chain plate protrusion (21) in the length direction thereof, wherein the shape and size of the left chain plate assembly block (22) are adapted to the left chain plate assembly hole (211), and a left chain plate assembly block (22) is provided on a side surface of the right chain plate (3) opposite to the wiring harness cavity (6) and at a position away from the left chain plate assembly block (2 2) A right chain plate matching cavity (31) is provided at the corresponding end position, and a right chain plate protrusion block (311) is also formed on the right chain plate matching cavity (31), and a right chain plate assembly hole (32) is also provided on the right chain plate (3) and at a position on the side away from the right chain plate matching cavity (31) in the length direction, which runs through the thickness direction of the right chain plate. The shape of the right chain plate protrusion block (311) is matched with the shape of the right chain plate assembly hole (32). When two adjacent unit chain links (1) are connected, one of the unit chain links ( The left chain plate assembly block (22) of the unit chain link (1) is rotatably matched with the left chain plate assembly hole (211) of another unit chain link (1), and the right chain plate protrusion block (311) of the unit chain link (1) is rotatably matched with the right chain plate assembly hole (32) of another unit chain link (1); and a chain link positioning sleeve (7) convexly arranged on the left chain plate (2) is formed on the unit chain link (1), and the unit chain link (1) can achieve fixed matching between itself and an external positioning member through the chain link positioning sleeve (7).

2. A tank chain device for a car seat harness according to claim 1, characterized in that: The protrusion of the chain link positioning sleeve (7) is formed on the surface of the left chain plate protrusion (21) on the side opposite to the wiring harness cavity (6); a pair of positioning holes (71) are opened on the chain link positioning sleeve (7), and the two positioning holes (71) are opened through the front side of the chain link positioning sleeve (7), and the positioning holes (71) are used to achieve fixed cooperation with an external positioning piece.

3. A tank chain device for a car seat harness according to claim 1, characterized in that: The left link plate (2) and the right link plate (3) are symmetrically arranged with the center line of the length direction of the first connecting plate I (4) as the symmetry axis.

4. A tank chain device for a car seat harness according to claim 1, characterized in that: The left chain plate assembly block (22) is cylindrical in shape, while the left chain plate assembly hole (211) is circular in shape; and a left chain plate assembly block oblique portion (221) arranged obliquely inward is also formed on the left chain plate assembly block (22), and the left chain plate assembly block oblique portion (221) is arranged from high to low from one end of the left chain plate assembly block (22) axially away from the left chain plate (2) body to the left chain plate (2) body, and the arrangement of the left chain plate assembly block oblique portion (221) facilitates the left chain plate assembly block (22) to be engaged and fixed with the left chain plate assembly hole (211).

5. A tank chain device for a car seat harness according to claim 1, characterized in that: The right chain plate protrusion block (311) is also cylindrical in shape, and the right chain plate assembly hole (32) is also circular in shape; and a right chain plate protrusion block oblique portion (3111) inclined inwardly arranged is also formed on the right chain plate protrusion block (3111), and the arrangement of the right chain plate protrusion block oblique portion (3111) facilitates the right chain plate protrusion block (311) to be engaged and fixed with the right chain plate assembly hole (32).

6. A tank chain device for a car seat harness according to claim 4, characterized in that: The left chain plate assembly hole (211) is arranged on the center line of the left chain plate (2) in the length direction of the body.

7. A tank chain device for a car seat harness according to claim 5, characterized in that: The right chain plate assembly hole (32) is arranged on the center line of the right chain plate (3) in the length direction of the body.

8. The tank chain device for a car seat harness according to claim 1, characterized in that: The left chain plate (2), the right chain plate (3), the first connecting plate I (4) and the second connecting plate II (5) are an integrally formed structure.

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