Wiring harness fixture

Abstract

The present application relates to a wire harness fixing device, comprising a first fixing bracket, a second fixing bracket, a transition bracket and a movable pin. The first fixing bracket is used to fix the target wire harness. The second fixing bracket comprises a first main body and a tensioning portion which are elastically connected, and the tensioning portion is used to pass through a connecting hole on a vehicle frame. The transition bracket is connected to the first fixing bracket and the second fixing bracket respectively. The transition bracket comprises a second main body and a limiting portion which are elastically connected. The second main body is connected to the first fixing bracket, and the second main body is provided with a clamping groove for clamping the first main body. The limiting portion is configured to limit the first main body to the clamping groove. The movable pin is passed through the second fixing bracket. The movable pin can prop open the tensioning portion so that the second fixing bracket can be fixed to the connecting hole with the help of the tensioning portion. The movable pin can also release the limiting effect of the limiting portion on the first main body. The above-mentioned wire harness fixing device does not require the aid of special tools for assembly and disassembly when in use, which is convenient for the maintenance of the wire harness system.

Description

Technical Field

[0001] The present application relates to the technical field of automobile wiring harness arrangement, and in particular to a wiring harness fixing device. Background Art

[0002] The wiring harness system is used to transmit energy and signals to various electrical components of the car. When routing the internal circuit of the car, the wiring harnesses are usually fixed relative to the frame with the help of a wiring harness fixture and arranged in order to ensure the reliability of the wiring harness system. At present, the wiring harness fixture needs to be installed and disassembled with the help of special tools, which is not convenient for the maintenance of the wiring harness system. Summary of the invention

[0003] Based on this, it is necessary to provide a wiring harness fixing device that does not require the use of special tools for assembly and disassembly, thereby facilitating the maintenance of the wiring harness system.

[0004] The embodiment of the present application provides a wiring harness fixing device, comprising:

[0005] a first fixing bracket, used for fixing the target wiring harness;

[0006] A second fixing bracket comprises a first main body portion and a tensioning portion which are elastically connected, wherein the tensioning portion is used to pass through a connecting hole provided on the vehicle frame;

[0007] a transition bracket, connected to the first fixing bracket and the second fixing bracket respectively; the transition bracket comprises a second main body portion and a limiting portion which are elastically connected; the second main body portion is connected to the first fixing bracket, and the second main body portion is provided with a clamping groove for clamping the first main body portion; the limiting portion is configured to limit the first main body portion to the clamping groove; and

[0008] A movable pin, passing through the second fixing bracket;

[0009] Wherein, when the movable pin moves in a direction close to the tensioning portion, the movable pin can prop open the tensioning portion, so that the second fixing bracket can be fixed to the connecting hole by means of the tensioning portion;

[0010] When the movable pin moves in a direction away from the tensioning portion, the movable pin can release the limiting effect of the limiting portion on the first main body portion to release the second fixing bracket.

[0011] In one embodiment, the second main body is slidably connected to the first fixing bracket along a first direction.

[0012] In one embodiment, a side of the first fixing bracket facing away from the target wiring harness is provided with a plurality of limiting grooves arranged along the first direction;

[0013] The limiting portion is provided with a limiting protrusion matched with the limiting groove;

[0014] When the first main body is engaged with the engaging groove, the first main body can abut against the limiting portion, so that the limiting protrusion can be engaged with the limiting groove at a corresponding position.

[0015] In one embodiment, the engaging groove is configured as an arc-shaped groove, so that the first main body portion can rotate relative to the second main body portion when the first main body portion is engaged with the engaging groove.

[0016] In one embodiment, the first main body is provided with a mounting hole for passing the movable pin;

[0017] The tensioning portion includes a plurality of tensioning strips arranged circumferentially around the central axis of the mounting hole;

[0018] One end of each of the tension strips is connected to the first main body portion, and the other end extends in a direction away from the first main body portion.

[0019] In one of the embodiments, the inner wall of the mounting hole and the outer wall of the movable pin are provided with mutually cooperating anti-rotation structures to limit the circumferential rotation of the movable pin relative to the mounting hole when the movable pin is inserted into the mounting hole.

[0020] In one of the embodiments, the harness fixing device further comprises a friction reducing pad;

[0021] The friction reducing pad is arranged on a side of the first fixing bracket facing the target wiring harness;

[0022] A plurality of buffer grooves are provided on a side of the friction reducing pad facing away from the first fixing bracket.

[0023] In one of the embodiments, the outer contour of the side of the anti-friction pad facing away from the first fixing bracket is an arc shape that is convex relative to the surface of the first fixing bracket.

[0024] In one of the embodiments, the harness securing device further comprises a tensioning mechanism;

[0025] The tensioning mechanism is arranged on a side of the first fixing bracket away from the target wiring harness;

[0026] When the target wire harness is fixed to one side of the first fixing bracket by means of a cable tie, the tensioning mechanism is located between the cable tie and the first fixing bracket to provide a tensioning force that presses the cable tie onto the target wire harness.

[0027] In one embodiment, the tensioning mechanism includes an elastic member and a contact plate;

[0028] The contact plate is used to contact the cable tie;

[0029] The elastic member is disposed between the contact plate and the first fixing bracket.

[0030] The above-mentioned harness fixing device fixes the target harness through the first fixing bracket, penetrates the connection hole on the frame through the tensioning part of the second fixing bracket, and connects the first fixing bracket with the second fixing bracket through the transition bracket, so as to fix the target harness relative to the frame. Under the limiting action of the limiting part, the first main body is not easy to loosen from the clamping groove of the second main body, which ensures the connection reliability between the transition bracket and the second fixing bracket. When fixing the target harness, the operating movable pin moves in the direction close to the tensioning part, so that the second fixing bracket is fixed to the connection hole with the help of the stretched tensioning part, so as to realize the connection between the second fixing bracket and the frame. When removing the target harness, the operating movable pin moves in the direction away from the tensioning part, which, on the one hand, releases the limiting action of the limiting part on the first main body, which facilitates the separation of the second fixing bracket from the transition bracket, and on the other hand, due to the contraction of the tensioning part, it is convenient for the second fixing bracket to be separated from the frame. The above-mentioned harness fixing device does not need to be assembled and disassembled with the help of special tools when used, which is convenient for the maintenance of the harness system. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the structure of a wire harness fixing device in one embodiment of the present application;

[0032] Figure 2 for Figure 1 An exploded schematic diagram of the wiring harness retaining device shown;

[0033] Figure 3 This is a schematic diagram of the installation of a target wire harness, a vehicle frame, and a wire harness fixing device in one embodiment of the present application;

[0034] Figure 4 for Figure 3 Schematic diagram from another perspective;

[0035] Figure 5 for Figure 1 The schematic diagram of the structure of the wiring harness fixing device shown in another perspective;

[0036] Figure 6 This is a schematic diagram of the structure of a transition bracket in one embodiment of the present application;

[0037] Figure 7 for Figure 6 The schematic diagram of the structure of the transition bracket shown in another perspective;

[0038] Figure 8 Schematic diagram of the structure of the second fixing bracket in one embodiment of the present application.

[0039] Description of reference numerals:

[0040] 100, wiring harness fixing device; 110, first fixing bracket; 111, sliding groove; 112, sliding limiting structure; 113, limiting groove; 114, accommodating portion; 120, second fixing bracket; 121, first main body; 1211, mounting hole; 122, tensioning portion; 1221, tensioning strip; 123, anti-rotation convex ridge; 130, transition bracket; 131, second main body; 1311, clamping groove; 132, limiting portion; 1321, limiting hook; 1322, first connecting arm; 1323, second connecting arm; 133, limiting protrusion; 140, movable pin; 141, anti-rotation slot; 150, anti-friction pad; 160, tensioning mechanism; 161, contact plate; 162, elastic member;

[0041] 10. Target harness;

[0042] 20. Frame; 21. Connection hole;

[0043] 30. Cable tie. DETAILED DESCRIPTION

[0044] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0045] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0046] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0047] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0048] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0049] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0050] Figure 1 A schematic diagram of the structure of a wiring harness fixing device in one embodiment of the present application is shown; Figure 2 Shows Figure 1 An exploded schematic diagram of the wiring harness retaining device shown; Figure 3 A schematic diagram of the installation of a target wire harness, a vehicle frame and a wire harness fixing device in one embodiment of the present application is shown; Figure 4 Shows Figure 3 Schematic diagram from another perspective.

[0051] See also Figures 1 to 4The embodiment of the present application provides a wire harness fixing device 100, which includes a first fixing bracket 110, a second fixing bracket 120, a transition bracket 130 and a movable pin 140. The first fixing bracket 110 is used to fix the target wire harness 10. The second fixing bracket 120 includes a first main body 121 and a tensioning part 122 that are elastically connected, and the tensioning part 122 is used to pass through the connecting hole 21 on the frame 20. The transition bracket 130 is connected to the first fixing bracket 110 and the second fixing bracket 120 respectively. The transition bracket 130 includes a second main body 131 and a limiting part 132 that are elastically connected. The second main body 131 is connected to the first fixing bracket 110, and the second main body 131 is provided with a clamping groove 1311 for clamping the first main body 121. The limiting part 132 is configured to limit the first main body 121 to the clamping groove 1311. The movable pin 140 is passed through the second fixing bracket 120. In the process of the movable pin 140 moving in the direction close to the tensioning portion 122 (direction a1 in the figure), the movable pin 140 can open the tensioning portion 122, so that the second fixing bracket 120 can be fixed to the connecting hole 21 with the help of the tensioning portion 122. In the process of the movable pin 140 moving in the direction away from the tensioning portion 122 (direction a2 in the figure), the movable pin 140 can release the limiting effect of the limiting portion 132 on the first main body 121, so as to release the second fixing bracket 120.

[0052] The target wire harness 10 is fixed to the first fixing bracket 110 by means of fixing parts such as cable ties and buckles. The second fixing bracket 120 and the transition bracket 130 both have two elastically connected parts. Optionally, the second fixing bracket 120 and the transition bracket 130 can be integrally formed of elastic material.

[0053] The operation of fixing the target wire harness 10 to the frame 20 is as follows: insert the tensioning part 122 into the connection hole 21 on the frame 20, insert the movable pin 140 into the second fixed bracket 120, and operate the movable pin 140 to move in the direction close to the tensioning part 122 until the second fixed bracket 120 is fixed in the connection hole 21 with the help of the stretched tensioning part 122, so as to realize the connection between the second fixed bracket 120 and the frame 20. Fix the first fixed bracket 110 to the target wire harness 10, and connect the first fixed bracket 110 to the transition bracket 130. Clamp the first main body 121 into the clamping groove 1311 of the second main body 131, and limit the first main body 121 in the clamping groove 1311 by the limiting part 132, so as to realize the connection between the second fixed bracket 120 and the transition bracket 130. When the target wire harness 10 needs to be removed, the movable pin 140 is operated to move in a direction away from the tensioning portion 122. After the limiting portion 132 releases the limiting effect on the first main body 121, the first main body 121 is removed from the clamping groove 1311 to separate the second fixing bracket 120 from the transition bracket 130. In addition, the tensioning portion 122 gradually contracts as the movable pin 140 is pulled out, so that the second fixing bracket 120 is easily separated from the vehicle frame 20.

[0054] Thus, the above-mentioned harness fixing device 100 fixes the target harness 10 through the first fixing bracket 110, penetrates the connection hole 21 on the frame 20 through the tensioning part 122 of the second fixing bracket 120, and connects the first fixing bracket 110 with the second fixing bracket 120 through the transition bracket 130, thereby fixing the target harness 10 relative to the frame 20. Under the limiting action of the limiting part 132, the first main body 121 is not easy to loosen from the clamping groove 1311 of the second main body 131, thereby ensuring the connection reliability between the transition bracket 130 and the second fixing bracket 120. When fixing the target harness 10, the movable pin 140 is operated to move in the direction close to the tensioning part 122, so that the second fixing bracket 120 is fixed to the connection hole 21 with the help of the stretched tensioning part 122, thereby realizing the connection between the second fixing bracket 120 and the frame 20. When removing the target wire harness 10, the movable pin 140 is operated to move in a direction away from the tensioning portion 122. On the one hand, the limiting effect of the limiting portion 132 on the first main body 121 is released, which facilitates the separation of the second fixing bracket 120 from the transition bracket 130. On the other hand, due to the contraction of the tensioning portion 122, the second fixing bracket 120 is easily separated from the vehicle frame 20. The above-mentioned wire harness fixing device 100 does not require special tools for assembly and disassembly, which facilitates the maintenance of the wire harness system.

[0055] Figure 5 Shows Figure 1 The schematic diagram of the structure of the wiring harness fixing device shown in another perspective.

[0056] See also Figure 1 , Figure 2and Figure 5 In some embodiments, the second main body 131 is slidably connected to the first fixing bracket 110 along the first direction (direction b in the figure). In this way, the operator can adjust the connection position of the first fixing bracket 110 and the transition bracket 130 in the first direction according to the actual situation of the wiring harness arrangement, and then adjust the relative position relationship between the first fixing bracket 110 and the wiring harness fixed thereto and the vehicle frame 20, which is convenient for assembly and helps to ensure the reliability of the wiring harness system.

[0057] Specifically in the illustrated embodiment, the first fixed bracket 110 is provided with a sliding groove 111 extending along the first direction, and the second main body 131 is provided with a protruding structure adapted to the sliding groove 111. Furthermore, a sliding limiting structure 112 is provided on both side edges of the sliding groove 111 along the first direction to prevent the protruding structure from sliding out of the sliding groove 111, thereby preventing the transition bracket 130 from being separated from the first fixed bracket 110 during the installation process.

[0058] Figure 6 A schematic diagram of the structure of a transition bracket in an embodiment of the present application is shown; Figure 7 Shows Figure 6 The transition bracket shown is a schematic structural diagram from another perspective.

[0059] See also Figure 2 , Figure 6 and Figure 7 In some embodiments, a plurality of limiting grooves 113 arranged along the first direction are provided on the side of the first fixing bracket 110 away from the target wiring harness 10. A limiting protrusion 133 adapted to the limiting groove 113 is provided on the limiting portion 132. When the first main body 121 is clamped in the clamping groove 1311, the first main body 121 can abut the limiting portion 132 so that the limiting protrusion 133 can be clamped in the limiting groove 113 corresponding to the position. During the installation process, according to the wiring harness arrangement requirements, the transition bracket 130 is slid along the first direction to the preset position on the first fixing bracket 110, and then the first main body 121 is clamped in the clamping groove 1311, and the first main body 121 lifts the limiting portion 132, so that the limiting protrusion 133 can be clamped in the limiting groove 113 at the preset position, thereby fixing the transition bracket 130 relatively to the first fixing bracket 110, and ensuring the connection reliability between the transition bracket 130 and the first fixing bracket 110.

[0060] Specifically in the illustrated embodiment, the limiting portion 132 includes a limiting hook 1321, two first connecting arms 1322 and a second connecting arm 1323. One end of the two first connecting arms 1322 is connected to the second main body 131, and the other end is connected to the end of the limiting hook 1321. One end of the second connecting arm 1323 is connected to the middle of the limiting hook 1321, and the limiting protrusion 133 is arranged at the other end of the second connecting arm 1323. When the first main body 121 is engaged in the engaging groove 1311, the limiting hook 1321 limits the first main body 121 in the engaging groove 1311, and the first main body 121 lifts the two first connecting arms 1322 to drive the second connecting arm 1323 connected to the limiting hook 1321 to approach the first fixing bracket 110, and the limiting protrusion 133 on the second connecting arm 1323 is engaged in the corresponding position of the limiting groove 113. When the target wire harness 10 needs to be removed, the movable pin 140 lifts up the first connecting arm 1322 to drive the limiting hook 1321 to stagger the engaging groove 1311 , thereby releasing the limiting effect of the limiting hook 1321 on the first main body 121 .

[0061] Continue to see Figure 2 and Figure 6 In some embodiments, the clamping groove 1311 is configured as an arc groove, so that the first main body 121 can rotate relative to the second main body 131 when clamped in the clamping groove 1311. In this way, when the target harness 10 vibrates violently, the rotational freedom of the first main body 121 relative to the second main body 131 can release the stress and strain generated by the local bending during the movement of the harness, and reduce the local wear at the fixing point between the target harness 10 and the first fixing bracket 110. In addition, due to the existence of the rotational freedom, the harness margin can be reduced when the harness is arranged, reducing the risk of wear between the harness and surrounding components.

[0062] Figure 8 A schematic structural diagram of a second fixing bracket in an embodiment of the present application is shown.

[0063] See also Figure 2 and Figure 8 In some embodiments, the first main body 121 is provided with a mounting hole 1211 for inserting the movable pin 140. The tensioning portion 122 includes a plurality of tensioning strips 1221 arranged circumferentially around the central axis of the mounting hole 1211. One end of each tensioning strip 1221 is connected to the first main body 121, and the other end extends in a direction away from the first main body 121. In the process of moving in a direction close to the tensioning portion 122, the movable pin 140 extends between the plurality of tensioning strips 1221, so that one end of each tensioning strip 1221 away from the first main body 121 moves radially outward, thereby fixing the tensioning portion 122 in the connecting hole 21 of the frame 20. Specifically in the illustrated embodiment, the tensioning portion 122 includes four tensioning strips 1221.

[0064] Furthermore, the inner wall of the mounting hole 1211 and the outer wall of the movable pin 140 are provided with mutually cooperating anti-rotation structures to limit the circumferential rotation of the movable pin 140 relative to the mounting hole 1211 when the movable pin 140 is inserted into the mounting hole 1211. In this way, the interference of external vibration on the movable pin 140 is reduced, and the movable pin 140 is prevented from rotating relative to the mounting hole 1211 and moving in a direction away from the tensioning portion 122, causing the tensioning portion 122 to loosen from the connecting hole 21 of the frame 20, thereby ensuring the connection reliability between the second fixing bracket 120 and the frame 20.

[0065] Specifically in the embodiment shown in the figure, an anti-rotation groove 141 is provided on the outer wall of the movable pin 140, and an anti-rotation ridge 123 matching the anti-rotation groove 141 is provided on the inner wall of the mounting hole 1211. In this way, when the movable pin 140 is inserted into the mounting hole 1211, the anti-rotation groove 141 and the anti-rotation ridge 123 are slidably matched, so that the movable pin 140 can only move in the direction close to or away from the tensioning part 122, and cannot rotate relative to the mounting hole 1211.

[0066] See also Figure 2 and Figure 5 In some embodiments, the harness fixture 100 further includes a friction reducing pad 150. The friction reducing pad 150 is disposed on a side of the first fixing bracket 110 facing the target harness 10. A plurality of buffer grooves are disposed on a side of the friction reducing pad 150 facing away from the first fixing bracket 110. In this way, the friction reducing pad can reduce friction and buffer the target harness 10, which helps to improve the reliability of the harness system. For example, the friction reducing pad 150 is configured as a rubber friction reducing pad.

[0067] Furthermore, the outer contour of the side of the anti-friction pad 150 away from the first fixing bracket 110 is an arc shape that is convex relative to the surface of the first fixing bracket 110. Figure 4 The arc-shaped outer contour can increase the contact area between the target wire harness 10 and the cable tie 30 during bundling, thereby improving the bundling effect.

[0068] See also Figure 1 , Figure 3 and Figure 4In some embodiments, the harness fixing device 100 further includes a tensioning mechanism 160. The tensioning mechanism 160 is disposed on a side of the first fixing bracket 110 that is away from the target harness 10. When the target harness 10 is fixed to one side of the first fixing bracket 110 by means of the cable tie 30, the tensioning mechanism 160 is located between the cable tie 30 and the first fixing bracket 110 to provide a tensioning force that presses the cable tie 30 against the target harness 10. In this way, when the cable tie 30 has insufficient tension due to aging, the tensioning mechanism 160 can compensate for the tensioning force, so that the cable tie 30 continues to press against the target harness 10, thereby improving the bundling effect. By way of example, the harness fixing device 100 includes two tensioning mechanisms 160, which are respectively located at both ends of the first fixing bracket 110.

[0069] As an optional implementation, see Figure 2 and Figure 4 The tensioning mechanism 160 includes an elastic member 162 and a contact plate 161. The contact plate 161 is used to contact the cable tie 30, and the elastic member 162 is disposed between the contact plate 161 and the first fixing bracket 110. In this way, the elastic member 162 can continuously apply elastic force to the cable tie 30 through the contact plate 161, so that the cable tie 30 is pressed tightly against the target wire harness 10. Optionally, the elastic member 162 is configured as a spring, and the first fixing bracket 110 is further provided with a receiving portion 114 for receiving the spring to prevent the spring from being bent and damaged during expansion and contraction.

[0070] In summary, the above-mentioned harness fixing device 100 includes a first fixing bracket 110, a second fixing bracket 120, a transition bracket 130, a movable pin 140, a friction-reducing pad 150 and a tensioning mechanism 160. The first fixing bracket 110 is used to fix the target harness 10, the second fixing bracket 120 is used to connect the vehicle frame 20, the transition bracket 130 is used to connect the first fixing bracket 110 with the second fixing bracket 120, the movable pin 140 is used to fix or split the second fixing bracket 120 relative to the vehicle frame 20 and split the second fixing bracket 120 relative to the transition bracket 130, the friction-reducing pad 150 is used to reduce friction and buffer the target harness 10, and the tensioning mechanism 160 is used to compensate for the tensioning force so that the cable tie 30 is continuously pressed against the target harness 10. The above-mentioned harness fixing device 100 does not require the use of special tools for assembly and disassembly when in use, which is convenient for the maintenance of the harness system.

[0071] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0072] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of this patent shall be subject to the attached claims.

Claims

1. A wiring harness fixing device, It is characterized in that include: a first fixing bracket, used for fixing the target wiring harness; A second fixing bracket comprises a first main body portion and a tensioning portion which are elastically connected, wherein the tensioning portion is used to pass through a connecting hole provided on the vehicle frame; A transition bracket is connected to the first fixing bracket and the second fixing bracket respectively; the transition bracket comprises a second main body portion and a limiting portion which are elastically connected; the second main body portion is connected to the first fixing bracket, and the second main body portion is provided with a clamping groove for clamping the first main body portion; the limiting portion is configured to limit the first main body portion to the clamping groove; as well as A movable pin, passing through the second fixing bracket; Wherein, when the movable pin moves in a direction close to the tensioning portion, the movable pin can prop open the tensioning portion, so that the second fixing bracket can be fixed to the connecting hole by means of the tensioning portion; When the movable pin moves in a direction away from the tensioning portion, the movable pin can release the limiting effect of the limiting portion on the first main body portion to release the second fixing bracket.

2. The wire harness fixing device according to claim 1, It is characterized in that The second main body is slidably connected to the first fixing bracket along a first direction.

3. The wire harness fixing device according to claim 2, It is characterized in that A plurality of limiting grooves arranged along the first direction are provided on a side of the first fixing bracket away from the target wiring harness; The limiting portion is provided with a limiting protrusion matched with the limiting groove; When the first main body is engaged with the engaging groove, the first main body can abut against the limiting portion, so that the limiting protrusion can be engaged with the limiting groove at a corresponding position.

4. The wire harness fixing device according to claim 1, It is characterized in that The clamping groove is configured as an arc-shaped groove, so that the first main body part can rotate relative to the second main body part when the first main body part is clamped in the clamping groove.

5. The wire harness fixing device according to claim 1, It is characterized in that The first main body is provided with a mounting hole for passing the movable pin; The tensioning portion includes a plurality of tensioning strips arranged circumferentially around the central axis of the mounting hole; One end of each of the tension strips is connected to the first main body portion, and the other end extends in a direction away from the first main body portion.

6. The wire harness fixing device according to claim 5, It is characterized in that The inner wall of the mounting hole and the outer wall of the movable pin are provided with anti-rotation structures that cooperate with each other to limit the circumferential rotation of the movable pin relative to the mounting hole when the movable pin is inserted into the mounting hole.

7. The wire harness fixing device according to any one of claims 1 to 6, It is characterized in that The harness fixing device also includes a friction reducing pad; The friction reducing pad is arranged on a side of the first fixing bracket facing the target wiring harness; A plurality of buffer grooves are provided on a side of the friction reducing pad facing away from the first fixing bracket.

8. The wire harness fixing device according to claim 7, It is characterized in that The outer contour of the side of the anti-friction pad facing away from the first fixing bracket is an arc shape that is convex relative to the surface of the first fixing bracket.

9. The wire harness fixing device according to any one of claims 1 to 6, It is characterized in that The wire harness fixing device also includes a tensioning mechanism; The tensioning mechanism is arranged on a side of the first fixing bracket away from the target wiring harness; When the target wire harness is fixed to one side of the first fixing bracket by means of a cable tie, the tensioning mechanism is located between the cable tie and the first fixing bracket to provide a tensioning force that presses the cable tie onto the target wire harness.

10. The wire harness fixing device according to claim 9, It is characterized in that The tensioning mechanism comprises an elastic member and a contact plate; The contact plate is used to contact the cable tie; The elastic member is disposed between the contact plate and the first fixing bracket.

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