Wire harness floor via hole sealing and fixing device

Abstract

The utility model belongs to the technical field of automobile manufacturing, and particularly relates to a wire harness floor via hole sealing and fixing device. Comprising a cover body, the cover body comprises a sealing upper cover and a sealing lower cover, a first wire passing hole and a second wire passing hole are defined by the sealing upper cover and the sealing lower cover in a relatively close lap joint mode, and the sealing upper cover extends along the opposite faces of the sealing lower cover to form two upper lap joint parts and an upper separation part. The sealing lower cover extends along the opposite surfaces of the sealing upper cover to form two lower lap joint parts and a lower separation part, the upper lap joint parts and the lower lap joint parts are arranged in an up-down butt joint mode, and the upper separation part and the lower separation part are arranged in an up-down butt joint mode to form a first wire passing hole and a second wire passing hole; an upper through hole is formed in the upper lap joint part, a lower through hole matched with the upper through hole is formed in the lower lap joint part, and the upper through hole and the lower through hole form a first mounting hole for connecting the upper lap joint part and the lower lap joint part. And the upper and lower lap joint parts are tightly combined, so that the structural stability and the anti-seismic property of the whole device are enhanced.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile manufacturing, and particularly relates to a wire harness floor through-hole sealing and fixing device. Background Art

[0002] In the existing automobile manufacturing technology, the fixing and sealing of vehicle floor wire harnesses and pipelines are crucial links, which are related to the functional performance of the whole vehicle and the riding comfort. The wire harnesses and pipelines are usually arranged through specific through-holes in the vehicle floor, and these through-holes require special equipment to achieve sealing and fixing to prevent the intrusion of water vapor, dust and other external impurities.

[0003] However, according to market feedback and technical analysis, many existing through-hole sealing and fixing devices cannot withstand the frequent bumps and vibrations encountered by the automobile during operation, mainly due to the insufficient structural stability of these devices. This lack of stability often leads to loosening or falling off of the sealing device after long-term use, resulting in a decline in the sealing performance, affecting the normal function of the wire harness, and increasing the risk of damage to the wire harness due to friction or impact.

[0004] In addition, the existing sealing and fixing technologies often fail to fully consider the actual application requirements under various complex environments, such as the special needs when driving under extreme climate conditions or on unconventional road surfaces. The bumps and vibrations under these conditions require the sealing and fixing device to have higher mechanical strength and better adaptability. Summary of the Utility Model

[0005] The utility model provides a wire harness floor through-hole sealing and fixing device, the purpose of which is to solve the problem that the floor wire harness sealing and fixing device in the prior art cannot effectively withstand the bumps and vibrations during the operation of the automobile, resulting in insufficient sealing performance and structural stability.

[0006] To achieve the above object, the present utility model provides a wire harness floor through-hole sealing and fixing device, including a cover body. The middle part of the cover body has a first wire passing hole and a second wire passing hole. Among them, the cover body includes a sealing upper cover and a sealing lower cover. The first wire passing hole and the second wire passing hole are formed by the relative close lapping of the sealing upper cover and the sealing lower cover. The sealing upper cover extends two upper lapping parts and an upper separating part located between the two upper lapping parts along the relative surface of the sealing lower cover. The sealing lower cover extends two lower lapping parts and a lower separating part located between the two lower lapping parts along the relative surface of the sealing upper cover. The two upper lapping parts and the two lower lapping parts are respectively arranged in upper and lower butt joints, and the upper separating part and the lower separating part are arranged in upper and lower butt joints to form the first wire passing hole and the second wire passing hole; an upper through hole is provided in the upper lapping part, and a lower through hole adapted to the upper through hole is provided in the lower lapping part. The upper through hole and the lower through hole form a first mounting hole connecting the upper lapping part and the lower lapping part.

[0007] Further, the sealing upper cover and the sealing lower cover are respectively provided with second mounting holes.

[0008] Further, a protruding annular sealing edge extends from the first wire passing hole, and the sealing edge is made of an elastic material.

[0009] Further, there are multiple sealing edges. Among them, elastic connecting pieces are provided between the sealing edges and between the sealing edge and the cover body.

[0010] Further, the upper separating part is provided with a positioning groove, and the lower separating part is provided with a positioning post, and the positioning post is adapted to the positioning groove.

[0011] Further, both the first wire passing hole and the second wire passing hole are circular.

[0012] Further, the cover body is made of PA66 material.

[0013] Further, both the first mounting hole and the second mounting hole are counterbore holes.

[0014] Further, the device further includes a plug cover adapted to the inner diameter of the first wire passing hole.

[0015] Further, the inner diameter of the first wire passing hole is greater than the inner diameter of the second wire passing hole.

[0016] Beneficial effects

[0017] Compared with the prior art, the utility model provides a wire harness floor through-hole sealing and fixing device, which includes a sealing upper cover and a sealing lower cover. These two parts are relatively close to each other and are tightly combined through the upper and lower overlapping parts, thus significantly enhancing the structural stability and seismic performance of the whole device. Through the butt joint setting between the upper overlapping part and the lower overlapping part, as well as the upper and lower butt joint structure of the upper separation part and the lower separation part, the contact area is increased, and the mechanical strength of the device is improved, ensuring that the device can remain stable during the driving of the vehicle when it is subjected to bumps and vibrations, and preventing loosening or falling off caused by vibration. In addition, the setting of the upper through-hole and the lower through-hole forms a first installation hole, making it easier for the device to be firmly connected to the vehicle floor, thus ensuring long-term use stability and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments.

[0019] Figure 1 FIG. is an overall structure diagram of a wire harness floor through-hole sealing and fixing device disclosed in an embodiment of the present utility model.

[0020] Figure 2 FIG. is a split structure diagram of a sealing upper cover and a sealing lower cover disclosed in an embodiment of the present utility model.

[0021] Figure 3 FIG. is a structural schematic diagram of a sealing lower cover disclosed in an embodiment of the present utility model.

[0022] Figure 4 FIG. is a structural schematic diagram of a sealing upper cover disclosed in an embodiment of the present utility model.

[0023] Figure 5 FIG. is a three-dimensional structural schematic diagram of a plug cover disclosed in an embodiment of the present utility model.

[0024] Reference numerals: 1, cover body; 2, plug cover; 10, sealing upper cover; 11, upper overlapping part; 12, upper separation part; 13, upper through-hole; 14, positioning groove; 20, sealing lower cover; 21, lower overlapping part; 22, lower separation part; 23, lower through-hole; 24, positioning post; 30, sealing edge; 31, elastic connecting piece; 32, gap; 101, first wire passing hole; 102, second wire passing hole; 103, first installation hole; 104, second installation hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] As Figures 1 - 5 shown, the present utility model provides a wire harness floor through-hole sealing and fixing device, which includes a cover body 1, composed of a sealing upper cover 10 and a sealing lower cover 20, and is designed to optimize the sealing and fixing process.

[0026] The sealing upper cover 10 and the sealing lower cover 20 are close to and overlap with each other, forming two main wire passing holes - the first wire passing hole 101 and the second wire passing hole 102. Figure 1 It is an assembly structure diagram. Figure 2 It is a structure diagram after disassembly. As can be seen from the figure, the inner diameter of the first wire passing hole 101 is larger than that of the second wire passing hole 102. The first wire passing hole 101 is used to pass the gravity sensing wire harness in the driver area through the floor and fix it on the first wire passing hole 101, and the second wire passing hole 102 is used to pass the pneumatic seat tube through the floor and fix it on the second wire passing hole 102. This overlapping method ensures the overall stability of the structure.

[0027] Specifically, the sealing upper cover 10 extends two upper overlapping parts 11 on the surface opposite to the sealing lower cover 20. There is an upper separating part 12 between these two parts, which not only enhances the structural support of the device but also separates the first wire passing hole 101 and the second wire passing hole 102. Correspondingly, the sealing lower cover 20 also extends two lower overlapping parts 21 and a middle lower separating part 22 on the corresponding surface opposite to the sealing upper cover 10, so as to achieve precise docking between the sealing upper cover 10 and the sealing lower cover 20.

[0028] Such as Figure 3 、 4 shown, in order to make the installation of the device more convenient, an upper through hole 13 is provided in the upper overlapping part 11, and a lower through hole 23 corresponding to the upper through hole 13 is opened in the lower overlapping part 21. The upper through hole 13 and the lower through hole 23 together form a first installation hole 103 connecting the two overlapping parts (see Figure 1 ). After the overlapping is completed, the device can be firmly fixed on the vehicle floor by passing bolts through the first installation hole 103, providing a lasting and reliable protection effect.

[0029] This design not only makes the installation process simpler and faster, but also ensures the stability of the device when the vehicle encounters bumps and vibrations during driving, effectively extending the service life of the wire harness and pipeline.

[0030] In the wire harness floor through hole sealing and fixing device of this embodiment, both the sealing upper cover 10 and the sealing lower cover 20 are provided with second installation holes 104. During the specific use process:

[0031] By first covering the sealed lower cover 20 over the wire passing hole on the driver's area floor, pre-fixing the sealed lower cover 20 to the floor by passing a countersunk self-tapping bolt through the second mounting hole 104, then passing the gravity sensing wire harness in the driver's area and the pneumatic seat tube through the corresponding first wire passing hole 101 and second wire passing hole 102 of the floor and the sealed lower cover 20, and then aligning and overlapping the sealed upper cover 10 and the sealed lower cover 20 vertically and horizontally, firmly fixing the wire harness and the air tube, and then fixing the sealed upper cover 10 to the floor by passing a countersunk self-tapping bolt through the second mounting hole 104. After checking that the wire harness and the air tube are fixed correctly, fix the other two first mounting holes 103 to the floor by countersunk self-tapping bolts, which improves the installation convenience and the balanced stability of the structure.

[0032] As Figure 2 、 Figure 3 shown, the first wire passing hole 101 is equipped with a protruding annular sealing edge 30, which is made of elastic material and can make the first wire passing hole 101 tighter when the wire harness passes through, thereby improving the sealing effect and the protection ability. In the split structure, both the sealed upper cover 10 and the sealed lower cover 20 have a sealing edge 30 with a semi-circular structure.

[0033] In addition, in another embodiment, the device includes a plurality of such sealing edges 30. Elastic connectors 31 are installed between the sealing edges 30 and between the sealing edges 30 and the cover body 1. In practical applications, users can remove one or more sealing edges 30 by cutting the elastic connectors 31 according to needs to adapt to wire harnesses of different sizes. This flexible design not only allows the aperture to be adjusted to match a smaller number of wire harnesses, but also utilizes the elastic material of the sealing edge 30 to ensure excellent sealing even without adjustment (by squeezing to fill the gap 32 between the sealing edges 30).

[0034] In this embodiment, as Figure 3 、 Figure 4 shown, a positioning groove 14 of the upper partition 12 and a positioning post 24 of the lower partition 22 are designed. When installing the sealed upper cover 10 and the sealed lower cover 20, the positioning post 24 will accurately insert into the positioning groove 14 to ensure the stable position of the sealed upper cover 10 during installation.

[0035] Preferably, both the first wire passing hole 101 and the second wire passing hole 102 are designed to be circular. The cover body 1 is made of PA66 (nylon-66) material, with a temperature resistance reaching -40°C - 60°C and a flame retardant rating of UL V-0.

[0036] For the convenience of installation, both the first mounting hole 103 and the second mounting hole 104 are designed with countersunk holes, which enhances the overall aesthetics. In addition, as Figure 5As shown, the device further includes a plug cover 2 that matches the inner diameter of the first wire passing hole 101. In the case of a low-equipped vehicle without a gravity sensor harness or other wire harnesses, the plug cover 2 can be used to block the first wire passing hole 101 to improve its sealing effect. Since the first wire passing hole 101 has a sealing edge 30, all the sealing edges 30 and the elastic connecting member 31 can be cut off and then the plug cover 2 can be assembled for sealing.

[0037] In addition, in this embodiment, the first wire passing hole 101 and the second wire passing hole 102 are provided to classify and fix the pipelines such as the driver's seat gravity sensor harness and the pneumatic seat tube, thereby optimizing the wiring layout of the seat system.

[0038] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A wire harness floor through-hole sealing and fixing device, characterized in that It includes a cover body (1). There are a first wire passing hole (101) and a second wire passing hole (102) in the middle of the cover body (1). Among them, the cover body (1) includes a sealing upper cover (10) and a sealing lower cover (20). The first wire passing hole (101) and the second wire passing hole (102) are formed by the relatively close lap joint of the sealing upper cover (10) and the sealing lower cover (20). The sealing upper cover (10) extends two upper lap joints (11) and an upper separating part (12) located between the two upper lap joints (11) along the opposite surface of the sealing lower cover (20). The sealing lower cover (20) extends two lower lap joints (21) and a lower separating part (22) located between the two lower lap joints (21) along the opposite surface of the sealing upper cover (10). The two upper lap joints (11) and the two lower lap joints (21) are respectively arranged in an up-and-down docking manner, and the upper separating part (12) and the lower separating part (22) are arranged in an up-and-down docking manner to form the first wire passing hole (101) and the second wire passing hole (102). An upper through hole (13) is opened in the upper lap joint (11), and a lower through hole (23) adapted to the upper through hole (13) is opened in the lower lap joint (21). The upper through hole (13) and the lower through hole (23) constitute a first mounting hole (103) connecting the upper lap joint (11) and the lower lap joint (21).

2. The wire harness floor through-hole sealing and fixing device according to claim 1, wherein, The sealing upper cover (10) and the sealing lower cover (20) are respectively provided with second mounting holes (104).

3. The wire harness floor through-hole sealing and fixing device according to claim 1, characterized in that, A protruding annular sealing edge (30) extends on the first wire passing hole (101). The sealing edge (30) is made of an elastic material.

4. The wire harness floor through-hole sealing and fixing device according to claim 3, characterized in that, There are multiple sealing edges (30). Among them, elastic connectors (31) are arranged between the sealing edges (30) and between the sealing edges (30) and the cover body (1).

5. The wire harness floor through-hole sealing and fixing device according to claim 1, characterized in that The upper separating part (12) is provided with a positioning groove (14), and the lower separating part (22) is provided with a positioning post (24). The positioning post (24) is adapted to the positioning groove (14).

6. The wire harness floor through-hole sealing and fixing device according to claim 1, characterized in that Both the first wire passing hole (101) and the second wire passing hole (102) are circular.

7. The wire harness floor through-hole sealing and fixing device according to claim 1, wherein, The cover body (1) is made of PA66 material.

8. The wire harness floor through-hole sealing and fixing device according to claim 2, characterized in that, Both the first mounting hole (103) and the second mounting hole (104) are countersunk holes.

9. The wire harness floor through-hole sealing and fixing device according to claim 1, characterized in that, The device further includes a plug cover (2) adapted to the inner diameter of the first wire passing hole (101).

10. The wire harness floor through-hole sealing and fixing device according to claim 1, characterized in that, The inner diameter of the first wire passing hole (101) is larger than the inner diameter of the second wire passing hole (102).

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