Wire harness fixing piece

Abstract

The utility model relates to the technical field of automobile parts, in particular to a wire harness fixing piece which comprises a buckle, a supporting plate and a strap hole, the buckle is fixed on one side of the supporting plate, and the strap hole is fixed on one side, far away from the buckle, of the supporting plate. According to the utility model, the wiring harness can be fixed on the supporting plate through the binding belt and is fixed on the vehicle body through the buckle, and a gap between the wiring harness and a peripheral pipeline or metal plate is ensured, so that abrasion caused by interference between the wiring harness and peripheral parts is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts fixing, and more specifically to a wire harness fixing buckle. Background Art

[0002] There are a large number of electronic components in the car, and different electronic components are connected by wires. A large number of wires in the same direction are gathered to form a wiring harness, which is fixed on the car body. Due to the rapid development of vehicle electrification, the more wires the wiring harness gathers, the thicker the outer diameter of the wiring harness. In the case of a small wiring harness space, the wiring harness will interfere with the surrounding parts below, such as sheet metal support plates, water pipes, brake pipes, etc., due to assembly distortion and manufacturing process consistency. The problem. Eventually lead to problems such as wire harness damage and pipe wear. Buckles are the most used in wire harness fixing and protection materials, and most of the fixing in the wire harness is done with buckles. The function of the buckle is to tighten the wire harness and fix it firmly and reliably in the body sheet metal holes, bolts, steel plates and other parts to prevent the wire harness from vibrating, shifting or interfering with other components and damaging the wire harness. However, the wire harness is a manual workpiece and the current vehicle wiring harness has many electrical functions, so it is difficult to ensure the consistency of the outer diameter of the wire harness. Wires are easily twisted during assembly, and existing clips cannot effectively constrain the wires to be straight, causing interference between the wires and the pipes or sheet metal below, affecting the safe use and reliability of the in-vehicle electrical appliances.

[0003] There is a Chinese utility model, application number CN202120676337.X, which discloses a car harness fixture, including a fixed plate with a long strip structure design, and a fixed buckle is connected and fixed in the middle of the surface of one side of the fixed plate; the two sides of the fixed buckle on the fixed plate each form a harness fixing part, and one or more harness arrangement stations are formed on the harness fixing part and used to arrange the harness, and the harness on the harness arrangement station is fixed to the harness arrangement station by a cable tie. Stop bosses are arranged in pairs on both sides of the outer end of the harness fixing part, and the inner side surface of the stop boss forms a stop surface and can abut on the cable tie to limit the cable tie from coming off the outer end of the harness fixing part; a reinforcing rib is arranged on a surface on the fixed plate and corresponding to the fixed buckle, and the reinforcing rib is correspondingly located in the middle of the surface of the fixed plate and arranged along the length direction of the fixed plate.

[0004] However, in the present technical solution, there is a lack of a fixing structure for the position of the cable tie, which can only ensure that the cable tie will not detach to the outer end, but cannot limit the movement of the cable tie in the fixing plate, so that the position of the cable tie fixing the wiring harness changes. The change in the position of the cable tie makes it impossible to ensure that the wiring harness remains in close contact with the fixing plate. Utility Model Content

[0005] In order to solve the above problems, the utility model provides a wiring harness fixing device, which is provided with a support plate, and the wiring harness is fixed on the support plate by a cable tie and fixes the wiring harness. A cable tie hole is opened on the support plate, and the cable tie is installed through the cable tie hole, so that the position of the cable tie is limited by the cable tie hole and will not be offset.

[0006] To solve the above technical problems, the technical solution adopted by the utility model is: a wire harness fixing part, including a buckle, a support plate and a tie hole, the buckle is fixed to one side of the support plate, and the tie hole is opened on the side of the support plate away from the buckle.

[0007] In this technical solution, a mounting hole is provided on the body of the automobile, and the buckle in the wiring harness fixing part is inserted into the mounting hole, and the buckle can fix the wiring harness fixing part as a whole in a determined position. The buckle is fixed on one side of the support plate, and the function of the support plate is to support the wiring harness. The support plate is a long plate-like structure, and the shape of the wiring harness is also long. The length direction of the support plate is in the same direction as the arrangement direction of the wiring harness, and the long support plate can support the wiring harness as long as possible. After placing the wiring harness on the support plate, use a cable tie to pass through the side of the support plate away from the wiring harness and the side of the wiring harness away from the support plate in turn, and then connect the cable tie end to end, and tighten the cable tie, and the wiring harness is firmly constrained on the support plate. A tie hole is provided on the support plate. When the cable tie passes through the side of the support plate away from the wiring harness, it first passes through the tie hole, and then continues to pass through the side of the wiring harness away from the support plate. This arrangement allows the cable tie to be constrained in the tie hole and cannot move. When the cable tie moves, if the displacement is small, it only moves within the hole of the cable tie, which has little effect on the fixation of the harness and does not require special treatment. When the cable tie moves significantly, it will interfere with the hole wall of the cable tie, inhibiting the movement of the cable tie and playing a role in fixing the position of the cable tie. At the same time, when the harness needs to be replaced, it is only necessary to cut the cable tie to remove the harness, which is very convenient.

[0008] Preferably, there are at least two strap holes, and each of the strap holes is respectively opened at two ends of a side of the support plate away from the buckle.

[0009] Preferably, a restraining groove is further provided on the support plate and located on the opposite side of the strap hole. The restraining groove is formed on the bottom surface of the support plate and extends from one side of the support plate located on the opposite side of the strap hole to below the strap hole.

[0010] Preferably, the support plate is a plate-shaped structure, and one end of the support plate close to the buckle is provided with a bent portion bent in a direction away from the bottom surface of the support plate.

[0011] Preferably, a plurality of reinforcing ribs are provided on the bottom surface of the support plate, and the length direction of the reinforcing ribs is perpendicular to the length direction of the support plate.

[0012] Preferably, a protrusion is provided in the middle of the side of the support plate away from the strap hole, and the buckle is fixed to the side of the protrusion away from the wiring harness.

[0013] Preferably, the buckle is an elastic structure.

[0014] Preferably, the buckle includes a support member, a first fastener and a second fastener, one end of the support member is connected to the protrusion, the first fastener and the second fastener are respectively fixed on opposite sides of an end of the support member away from the protrusion, and the first fastener and the second fastener extend in a direction close to the protrusion and away from the support member.

[0015] Preferably, a pressure plate is further provided at the connection between the support member and the protrusion.

[0016] Preferably, the four sides are bent toward the buckle, the buckle is fixed to the middle of the pressure plate, and a side of the pressure plate away from the buckle is connected to the protrusion.

[0017] Compared with the prior art, the beneficial effects of the utility model are as follows: a tie hole is provided to fix the position of the tie so as not to shift. There are more than two tie holes, which are arranged at both ends of the support plate respectively, to ensure that both ends of the support plate can abut against the wire harness and to ensure that the longest wire harness can be supported. A constraint groove is provided below the tie hole to limit the tilting of the tie. The support plate is provided with a curved portion so that the surface of the support plate can better fit the outer peripheral surface of the wire harness. Reinforcing ribs are provided on the support plate so that the support plate can better maintain its shape and support a heavier wire harness. A pressure plate is provided on the buckle to ensure that the buckle and the vehicle body are in a taut state, thereby avoiding vibration of the wire harness fixing caused by a gap between the buckle and the vehicle body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a stereoscopic diagram of the wiring harness fixing member of the utility model.

[0019] In the accompanying drawings: 1. buckle; 2. support plate; 3. strap hole; 4. constraint groove; 5. bending part; 6. reinforcing rib; 7. protrusion; 8. pressure plate; 11. support member; 12. first fastener; 13. second fastener. DETAILED DESCRIPTION

[0020] The drawings are only for illustrative purposes and cannot be construed as limiting the present invention. To better illustrate the present embodiment, some parts of the drawings may be omitted, enlarged, or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are only for illustrative purposes and cannot be construed as limiting the present invention.

[0021] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "long", "short" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0022] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0023] Example 1

[0024] like Figure 1 As shown, a wire harness fixing part is characterized in that it includes a buckle 1, a support plate 2 and a tie hole 3, the buckle 1 is fixed to one side of the support plate 2, and the tie hole 3 is opened on the side of the support plate 2 away from the buckle 1. A mounting hole is opened on the body of the automobile, and the buckle 1 in the wire harness fixing part is inserted into the mounting hole, and the buckle 1 can fix the wire harness fixing part as a whole at a determined position. The buckle 1 is fixed to one side of the support plate 2, and the function of the support plate 2 is to support the wire harness. The support plate 2 is a long plate-like structure, and the shape of the wire harness is also a long strip. The length direction of the support plate 2 is in the same direction as the arrangement direction of the wire harness, and the long support plate 2 can support the wire harness as long as possible. After placing the wire harness on the support plate 2, use a cable tie to pass through the side of the support plate 2 away from the wire harness and the side of the wire harness away from the support plate in turn, and then connect the cable tie end to end, and tighten the cable tie, so that the wire harness is firmly constrained on the support plate 2. The support plate 2 is provided with a tie hole 3. After the tie passes through the side of the support plate 2 away from the wiring harness, it first passes through the tie hole 3 and then continues to pass through the side of the wiring harness away from the support plate 2. This arrangement constrains the tie in the tie hole 3 and prevents it from moving. When the tie is displaced, if the displacement amplitude is small, it only displaces in the tie hole 3, which has little effect on the fixation of the wiring harness and does not require special treatment. When the tie is displaced to a large extent, the tie will interfere with the hole wall of the tie hole 3, inhibiting the movement of the tie and playing a role in fixing the position of the tie. At the same time, when the wiring harness needs to be replaced, it is only necessary to cut the tie to take out the wiring harness, which is extremely convenient. By fixing the wiring harness to the support plate 2 with a tie, it can be ensured that there is a gap between the wiring harness and other wiring harnesses, pipelines or sheet metal in the vehicle, thereby avoiding interference between the wiring harness and surrounding parts and causing wear.

[0025] like Figure 1As shown, there are at least two tie holes 3, and each tie hole 3 is respectively opened at the two ends of the side of the support plate 2 away from the buckle 1. If the support plate 2 needs to play the greatest supporting and fixing role on the wire harness, it is necessary to ensure that the support plate 3 is in contact with the wire harness as a whole in the horizontal direction. Therefore, it is not enough to use a single cable tie to fix the wire harness. The wire harness may be bent at the position where the single cable tie is fixed, causing the wire harness to be separated from the support plate 3, and the support plate 3 of the separated part loses its supporting effect on the wire harness. There are more than two tie holes 3, which are respectively arranged at the two ends of the side of the support plate 2 away from the buckle 1. There are multiple tie ties, which pass through each tie hole 3 respectively, and fix the two ends of the part of the wire harness on the support plate 2, thereby realizing multi-point fixation of the wire harness, ensuring that the part of the wire harness on the support plate 2 is in close contact with the support plate 2, and avoiding the situation where the wire harness is bent at the tie fixing position due to a single tie.

[0026] like Figure 1 As shown, a constraint groove 4 is also provided on the support plate 2 and located on the opposite side of the tie hole 3. The constraint groove 4 is formed on the bottom surface of the support plate 2, and the constraint groove 4 extends from the side of the support plate 2 located on the opposite side of the tie hole 3 to the bottom of the tie hole 3. The constraint of the cable tie on the wire harness is to suppress the wire harness from moving in the direction away from the support plate, and cannot constrain the wire harness from sliding along the length direction of the support plate. When subjected to external force, the wire harness may slide along the length direction of the support plate. The support plate 2 fixes the buckle 1 to the vehicle body and keeps it stationary, but the cable tie is in close contact with the surface of the wire harness. When the wire harness moves, it will be driven to move together under the action of friction. The cable tie is restricted by the tie hole 3 at the tie hole 3 and cannot move, but the other parts of the cable tie will move with the wire harness under the action of friction, causing the cable tie to tilt. After the cable tie is connected end to end, a loop is formed. After the cable tie is tightened, the area inside the loop cannot be expanded. When the cable tie is tilted, the projection of the inner area of ​​the cable tie loop in the cross-sectional direction of the wiring harness becomes smaller, causing the cable tie to dig into the surface of the wiring harness, causing damage to the surface of the wiring harness and affecting the normal operation of the wires inside the wiring harness. Therefore, it is necessary to limit the tilt of the cable tie. A constraint groove 4 is provided on the support plate 2 and located on the opposite side of the tie hole 3. The constraint groove 4 extends from one side of the support plate 2 located on the opposite side of the tie hole 3 to the bottom of the tie hole 3. When the cable tie is fixed, the cable tie is placed in the constraint groove 4. The constraint groove 4 has a fixing effect on the position of the cable tie placed in the groove. When the cable tie is tilted, the cable tie located in the groove of the constraint groove 4 conflicts with the groove wall of the constraint groove 4, so that this part of the cable tie cannot move, thereby suppressing the tilt of the cable tie.

[0027] like Figure 1As shown, the support plate 2 is a plate-like structure, and one end of the support plate 2 close to the buckle 1 is provided with a bent portion 5 that bends in a direction away from the bottom surface of the support plate 2. The cross-section of the wiring harness in the car is generally made into a circle, and the circle has only one point of contact with the plane. If the support plate 2 is set to a flat plate type, it can only have a linear contact with the wiring harness, and can only provide support force to the wiring harness from a single direction, so that the wiring harness is prone to deviation. The end of the support plate 2 close to the buckle 1 is provided with a bent portion 5 that bends in the direction of the wiring harness, so that the surface of the support plate 2 in contact with the wiring harness is a curved surface, and the curved surface can better fit the circular outer peripheral surface of the wiring harness, thereby increasing the contact area with the wiring harness. At the same time, it can also provide support force to the wiring harness from different directions, so that the wiring harness is not easily deviated.

[0028] like Figure 1 As shown, a plurality of reinforcing ribs 6 are provided on the side of the support plate 3 away from the wire harness, and the length direction of the reinforcing ribs 6 is perpendicular to the length direction of the support plate 2. The cable tie applies a force to the bending portion 5 in the direction of the wire harness, and the bending portion 5 is easily deformed under the action of the force. A plurality of reinforcing ribs 6 are provided on the side of the support plate 3 away from the wire harness, and the length direction of the reinforcing ribs 6 is perpendicular to the length direction of the support plate 2. The reinforcing ribs 6 support the bending degree of the bending portion 5 and prevent the bending portion 5 from deforming.

[0029] like Figure 1 As shown, a protrusion 7 is provided in the middle of the side of the support plate 2 away from the strap hole 3, and the buckle 1 is fixed to the side of the protrusion 7 away from the wiring harness. The part where the support plate 2 and the buckle 1 are connected should be a plane to avoid a gap between the vehicle body and the support plate 2 in a certain direction after the buckle 1 is inserted into the mounting hole of the vehicle body due to the curved surface where the support plate 2 contacts the vehicle body, so that the support plate 2 can rotate in the direction of the gap. The curved portion 5 of the support plate 2 is provided at one end close to the buckle. Therefore, a protrusion 7 is provided in the middle of the side of the support plate 2 away from the strap hole 3, and the buckle 1 is fixed to the side of the protrusion 7 away from the wiring harness, ensuring that the part where the support plate 2 and the buckle 1 are connected is a plane.

[0030] Example 2

[0031] This embodiment is similar to the above-mentioned embodiment 1, except that: Figure 1 As shown, the buckle 1 is an elastic structure. When not affected by external forces, the space occupied by the buckle 1 should be larger than the mounting hole of the vehicle body. When passing through the mounting hole, the space occupied by the buckle 1 should be smaller than the mounting hole. After the buckle 1 is inserted into the mounting hole, the buckle 1 returns to a state where it is not affected by external forces, and the space occupied by the buckle 1 becomes larger than the mounting hole of the vehicle body again. This makes it impossible for the buckle 1 to be removed from the mounting hole, thereby achieving a fixing effect. In this process, the space occupied by the buckle 1 changes. The buckle 1 with an elastic structure can realize the above-mentioned change process without the need to specially set up a mechanical structure to achieve this effect.

[0032] like Figure 1 As shown, the buckle 1 includes a support member 11, a first fastener 12 and a second fastener 13. One end of the support member 11 is connected to the protrusion 7. The first fastener 12 and the second fastener 13 are fixed to opposite sides of the end of the support member 11 away from the protrusion 7, respectively. The first fastener 12 and the second fastener 13 extend in a direction close to the protrusion 7 and away from the support member 11. The support member 11 is used to fix the first fastener 12 and the second fastener 13. The first fastener 12 and the second fastener 13 are installed on both sides of the end of the support member 11 away from the support plate 2, and extend in a direction close to the support plate 2 and away from the support member 11. When passing through the mounting hole of the vehicle body, the end of the first fastener 12 close to the support plate 2 and the end of the second fastener 13 close to the support plate 2 collide with the hole wall of the mounting hole. Under the pressure of the hole wall of the mounting hole, the end of the first fastener 12 close to the support plate 2 and the end of the second fastener 13 close to the support plate 2 are deformed and approach each other, and finally pass through the mounting hole. After entering the mounting hole, the first fastener 12 and the second fastener 1 return to their original state due to their own elasticity, so that the buckle 1 can no longer be pulled out of the mounting hole.

[0033] Example 3

[0034] This embodiment is similar to the above-mentioned embodiment 1, except that: Figure 1 As shown, a pressure plate 8 is also provided at the connection between the support member 11 and the protrusion 7. After the buckle 1 is inserted into the mounting hole, it can only ensure that the buckle 1 cannot be pulled out of the mounting hole. However, the thickness of the sheet metal of the vehicle body is different at different positions. At the thinner sheet metal, the length of the support member 11 is too long, resulting in a gap between the vehicle body and the support plate 2 after the buckle 1 is fixed, making it easy for the support plate 2 to vibrate relative to the vehicle body. A pressure plate 8 is provided at the connection between the support member 11 and the support plate 2. The pressure plate 8 provides a force to pull the buckle 1 outward, making the buckle 1 tight, ensuring that the support plate 2 does not vibrate relative to the vehicle body.

[0035] like Figure 1 As shown, the pressure plate 8 is bent around the buckle 1, the buckle 1 is fixed to the middle of the pressure plate 8, and the side of the pressure plate 8 away from the buckle 1 is connected to the protrusion 7. The pressure plate 8 is bent around the buckle 1 to form a tortoise shell structure buckled on the mounting hole, which plays a shielding role on the mounting hole. And it can evenly apply pressure around the mounting hole.

[0036] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A wire harness fixing, characterized in that: It comprises a buckle (1), a support plate (2) and a strap hole (3), wherein the buckle (1) is fixed to one side of the support plate (2), and the strap hole (3) is opened on a side of the support plate (2) away from the buckle (1).

2. A wire harness fixing according to claim 1, characterized in that: There are at least two strap holes (3), and each strap hole (3) is respectively opened at two ends of a side of the support plate (2) away from the buckle (1).

3. A wire harness fixing according to claim 2, characterized in that: A restraining groove (4) is also provided on the support plate (2) and located on the opposite side of the restraining hole (3); the restraining groove (4) is formed on the bottom surface of the support plate (2); the restraining groove (4) extends from one side of the support plate (2) located on the opposite side of the restraining hole (3) to below the restraining hole (3).

4. A wire harness fixing according to claim 1, characterized in that: The support plate (2) is a plate-shaped structure, and one end of the support plate (2) close to the buckle (1) is provided with a bent portion (5) bent in a direction away from the bottom surface of the support plate (2).

5. A wire harness fixing according to claim 4, characterized in that: The bottom surface of the support plate (2) is provided with a plurality of reinforcing ribs (6), and the length direction of the reinforcing ribs (6) is perpendicular to the length direction of the support plate (2).

6. The wire harness fixing according to claim 1, characterized in that: A protrusion (7) is provided in the middle of the side of the support plate (2) away from the harness hole (3), and the buckle (1) is fixed to the side of the protrusion (7) away from the harness.

7. A wire harness fixing according to claim 6, characterized in that: The buckle (1) is an elastic structure.

8. A wire harness fixing according to claim 7, characterized in that: The buckle (1) comprises a support member (11), a first fastener (12) and a second fastener (13); one end of the support member (11) is connected to the protruding portion (7); the first fastener (12) and the second fastener (13) are respectively fixed on opposite sides of an end of the support member (11) away from the protruding portion (7); the first fastener (12) and the second fastener (13) extend in a direction close to the protruding portion (7) and away from the support member (11).

9. A wire harness fixing according to claim 8, characterized in that: A pressure plate (8) is also provided at the connection between the support member (11) and the protruding portion (7).

10. A wire harness fixing according to claim 9, characterized in that: The pressure plate (8) is bent around toward the buckle (1), the buckle (1) is fixed to the middle of the pressure plate (8), and the side of the pressure plate (8) away from the buckle (1) is connected to the protrusion (7).

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