Waterproof and dustproof structure for automobile wire harness

Abstract

The utility model discloses a waterproof and dustproof structure for an automobile wire harness. The waterproof and dustproof structure comprises a protective sleeve, a wire hole and a connecting structure, the protective sleeve is placed in the clamping groove, then the connecting rod is rotated, the connecting rod is rotated into the first connecting block, at the moment, the limiting block is inserted into the first connecting block, the screw rod is rotated, due to the fact that the screw rod is in threaded connection with the first connecting block, when the screw rod is rotated, the screw rod can push the limiting rod to move downwards and then penetrate through the limiting block, and at the same time, the limiting block is inserted into the limiting block. The pressing blocks are pressed downwards into the pressing grooves at the same time to tightly press the limiting blocks, so that the first connecting blocks and the second connecting blocks are connected and fixed, the protective sleeves in the clamping grooves are fixed through the clamping plates, the multiple protective sleeves are connected, and the phenomenon that the binding belt is likely to be broken after being used for a long time is avoided; and meanwhile, the deformation of the protective sleeve caused by the fastening of the ribbon is avoided.

Description

Technical Field

[0001] This utility model relates to the field of automotive wiring harness technology, specifically a waterproof and dustproof structure for automotive wiring harnesses. Background Technology

[0002] Automotive wiring harnesses are the main network of automotive circuits. Without wiring harnesses, there would be no automotive circuits. A wiring harness is a component that connects circuits by crimping copper contact terminals (connectors) with wires and cables, and then molding an insulator or adding an outer metal shell. The wiring harness is bundled together to form a circuit connection. The wiring harness needs to be equipped with a waterproof and dustproof structure to protect, organize and fix the wires.

[0003] Existing patent CN208939224U discloses a waterproof and dustproof device for wire harnesses. The device includes an inverted "L"-shaped connector and a "U"-shaped sealing cap. The inverted "L"-shaped connector includes a vertically placed wire harness connection input part and a horizontally placed wire harness connection output part. A sealing gasket is fixedly provided on the outer wall of the wire harness connection input part, and a sealing plug that fits into the end of the output part and the inner rubber suction cup is also provided at the end of the wire harness connection output part.

[0004] The aforementioned patents or existing waterproof and dustproof structures have the following problems:

[0005] To prevent loosening and displacement, existing waterproof and dustproof structures require cable ties to connect and fix the protective sleeves. However, cable ties may age and break after long-term use, and they can also cause the protective sleeves to deform and break. Utility Model Content

[0006] The purpose of this invention is to provide a waterproof and dustproof structure for automotive wiring harnesses to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a waterproof and dustproof structure for automotive wiring harnesses, comprising a protective sleeve, wherein a wire hole is provided in the protective sleeve, and a connecting structure is provided on the protective sleeve, wherein the connecting structure comprises a first connecting block, a second connecting block is provided on the first connecting block, a clamping plate is provided on the surface of both the first and second connecting blocks, a clamping groove is formed in the clamping plate, the protective sleeve is located in the clamping groove, a connecting rod is provided in the second connecting block, a limit block is provided on the connecting rod, a screw is connected to the first connecting block, a limit rod is provided at the end of the screw, and a fixing rod is provided on the surface of the second connecting block, the fixing rod being connected to the first connecting block.

[0008] Preferably, the limiting rod is inserted through the limiting block and then inserted into the first connecting block.

[0009] Preferably, there are two fixing rods, which are symmetrically arranged on the surface of the second connecting block.

[0010] Preferably, a limiting plate is fixed to the end of the fixing rod, and the direct length of the limiting plate is greater than that of the fixing rod.

[0011] Preferably, the connecting rod is provided with a vertical rod, a slider is connected to the vertical rod, the limiting block is fixed to the surface of the slider, a spring is provided on the vertical rod, a pressure groove is provided on the limiting block, and a pressure block is provided on the surface of the limiting rod.

[0012] Preferably, when the connecting rod is inserted into the first connecting block, the top end of the connecting rod protrudes beyond the top end of the first connecting block.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] Place the protective sleeve into the clamping groove, then rotate the connecting rod to insert it into the first connecting block. At this time, the limiting block is inserted into the first connecting block. Rotate the screw. Because the screw is threadedly connected to the first connecting block, the screw will push the limiting rod downwards and then pass through the limiting block. At the same time, the pressure block is pressed down into the pressure groove to tighten the limiting block, thereby connecting and fixing the first and second connecting blocks. This allows the clamping plate to fix the protective sleeve in the clamping groove, thus connecting multiple protective sleeves. This avoids the possibility of breakage of the cable tie connection after long-term use, and also prevents the protective sleeve from deforming due to the tightening of the cable tie. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a front view structural diagram of the present utility model;

[0017] Figure 3 This is a side cross-sectional view of the first connecting block of this utility model;

[0018] Figure 4 This is a side view sectional diagram of the fixing rod of this utility model.

[0019] In the diagram: Protective sleeve-1, wire hole-2, connecting structure-3, first connecting block-31, second connecting block-32, clamping plate-33, clamping groove-34, connecting rod-35, limiting block-36, screw-37, limiting rod-38, fixing rod-39, limiting plate-310, vertical rod-311, slider-312, spring-313, pressure groove-314, pressure block-315. Detailed Implementation

[0020] To further explain the technical solution of this utility model, a detailed description is provided below through specific embodiments.

[0021] Please see Figure 1 and Figure 2 This utility model provides a waterproof and dustproof structure for automotive wiring harnesses, including a protective sleeve 1, a wire hole 2 in the protective sleeve 1, through which an automotive wiring harness is inserted, the protective sleeve 1 can provide dustproof and waterproof protection for the wiring harness in the wire hole 2, and a connecting structure 3 is provided on the protective sleeve 1.

[0022] Please see Figure 3 and Figure 4 This utility model provides a waterproof and dustproof structure for automotive wiring harnesses. The connection structure 3 includes a first connecting block 31 and a second connecting block 32. A fixing rod 39 is fixed on the surface of the second connecting block 32. Two fixing rods 39 are provided and are symmetrically arranged on the surface of the second connecting block 32. The fixing rods 39 are inserted into the first connecting block 31 to realize the connection between the second connecting block 32 and the first connecting block 31. A limiting plate 310 is fixed on the surface of the fixing rod 39. The diameter of the limiting plate 310 is larger than the diameter of the fixing rod 39 to prevent the fixing rod 39 from separating from the first connecting block 31.

[0023] Both the first connecting block 31 and the second connecting block 32 have a clamping plate 33 integrally formed on their surfaces. A clamping groove 34 is formed in the clamping plate 33, and the protective sleeve 1 is located in the clamping groove 34.

[0024] The second connecting block 32 is rotatably connected to a connecting rod 35, and a limit block 36 is provided on the connecting rod 35. The first connecting block 31 is threadedly connected to a screw 37, and a limit rod 38 is provided at the end of the screw 37. A fixing rod 39 is provided on the surface of the second connecting block 32. The fixing rod 39 is connected to the first connecting block 31. The limit rod 38 is inserted into the limit block 36 in a through-hole manner, and after passing through, it is inserted into the first connecting block 31, so that the limit block 36 is fixed more firmly.

[0025] In this utility model, a vertical rod 311 is provided in the connecting rod 35, a slider 312 is connected to the vertical rod 311, a limiting block 36 is fixed on the surface of the slider 312, a spring 313 is provided on the vertical rod 311, a pressure groove 314 is provided on the limiting block 36, and a pressure block 315 is provided on the surface of the limiting rod 38, so that after the limiting rod 38 limits the limiting block 36, it can press the limiting block 36, making the limiting block 36 more stable after being limited.

[0026] When the connecting rod 35 is inserted into the first connecting block 31, the top end of the connecting rod 35 protrudes from the top end of the first connecting block 31 to facilitate the rotation of the connecting rod 35.

[0027] Specifically, the protective sleeve 1 is placed in the clamping groove 34, and then the connecting rod 35 is rotated to enter the first connecting block 31. At this time, the limiting block 36 is inserted into the first connecting block 31. The screw 37 is rotated. Since the screw 37 is threadedly connected to the first connecting block 31, when the screw 37 is rotated, the screw 37 will push the limiting rod 38 downward and then pass through the limiting block 36. At the same time, the pressure block 315 is pressed down into the pressure groove 314 to press the limiting block 36 tightly, so as to realize the connection and fixation of the first connecting block 31 and the second connecting block 32, so that the clamping plate 33 fixes the protective sleeve 1 in the clamping groove 34, thereby connecting multiple protective sleeves 1, avoiding the phenomenon that the cable tie connection may break after long-term use, and at the same time, the protective sleeve 1 will not be deformed due to the tightening of the cable tie.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A waterproof and dustproof structure for automotive wiring harnesses, comprising a protective sleeve (1), wherein the protective sleeve (1) has a wire hole (2), characterized in that: It also includes a connecting structure (3), on which the protective sleeve (1) is provided a connecting structure (3), the connecting structure (3) includes a first connecting block (31), on which a second connecting block (32) is provided, on which both the first connecting block (31) and the second connecting block (32) are provided with clamping plates (33), and clamping grooves (34) are formed in the clamping plates (33). The protective sleeve (1) is located in the clamping grooves (34). A connecting rod (35) is provided in the second connecting block (32), and a limit block (36) is provided on the connecting rod (35). A screw (37) is connected to the first connecting block (31), and a limit rod (38) is provided at the end of the screw (37). A fixing rod (39) is provided on the surface of the second connecting block (32), and the fixing rod (39) is connected to the first connecting block (31).

2. The waterproof and dustproof structure for automotive wiring harnesses according to claim 1, characterized in that: The limiting rod (38) is inserted through the limiting block (36) and then inserted into the first connecting block (31).

3. The waterproof and dustproof structure for automotive wiring harnesses according to claim 1, characterized in that: Two fixing rods (39) are provided and are symmetrically arranged on the surface of the second connecting block (32).

4. The waterproof and dustproof structure for automotive wiring harnesses according to claim 3, characterized in that: A limiting plate (310) is fixed to the end of the fixing rod (39), and the direct length of the limiting plate (310) is greater than that of the fixing rod (39).

5. The waterproof and dustproof structure for automotive wiring harnesses according to claim 1, characterized in that: The connecting rod (35) is provided with a vertical rod (311), and a slider (312) is connected to the vertical rod (311). The limiting block (36) is fixed on the surface of the slider (312). A spring (313) is provided on the vertical rod (311). A pressure groove (314) is opened on the limiting block (36). A pressure block (315) is provided on the surface of the limiting rod (38).

6. The waterproof and dustproof structure for automotive wiring harnesses according to claim 1, characterized in that: When the connecting rod (35) is inserted into the first connecting block (31), the top end of the connecting rod (35) protrudes from the top end of the first connecting block (31).

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