A sealing sleeve for an automobile wire harness

Abstract

The utility model relates to a kind of sealing sleeve for automobile wire harness, it is related to the technical field of automobile wire harness, it includes fixed plate and sealing plate, the fixed plate is set with abutment seat between sealing plate, the abutment seat is set with several sealing grooves in sealing plate side, the abutment seat is set with several fixed slots in fixed plate side, the fixed slot and sealing groove are interconnected, several fixed holes are set with being passed in the fixed plate, several sealing holes are set with being passed in the sealing plate, relative the coaxial arrangement of fixed hole, sealing hole, sealing groove and fixed slot, first component is set between sealing groove and sealing hole, the first component is used to seal between wire harness body and abutment seat, second component is set between abutment seat and fixed plate, the second component is used to seal between sheet metal member via hole and abutment seat.The present application has the effect that sheet metal member body via hole is sealed between automobile wire harness.

Description

Technical Field

[0001] This utility model relates to the field of automotive wiring harness technology, and in particular to a sealing sleeve for automotive wiring harnesses. Background Technology

[0002] Automotive wiring harnesses form the core of a vehicle's electrical system, undertaking core functions such as current and signal transmission. Their wiring design needs to penetrate multiple critical areas within the vehicle. In modern automotive design, sheet metal panels are commonly used to separate interior areas; therefore, automotive wiring harnesses must pass through vias in these panels to achieve electrical connections between different areas.

[0003] Because different areas have different environmental requirements, sealing sleeves are installed inside the through holes of the sheet metal parts to isolate these areas. When the automotive wiring harness passes through the through hole of the sheet metal part, the sealing sleeve, made of rubber or silicone, wraps around the wiring harness and undergoes elastic deformation, thus sealing the through hole of the sheet metal part and the automotive wiring harness.

[0004] However, when the sealing sleeve wraps multiple automotive wiring harnesses at the same time, gaps may easily exist between the automotive wiring harnesses, which will reduce the sealing performance between the through holes of the sheet metal part and the automotive wiring harnesses. Utility Model Content

[0005] In order to achieve a sealing effect between the through hole of the sheet metal part and the automotive wiring harness, this application provides a sealing sleeve for automotive wiring harnesses.

[0006] The sealing sleeve for automotive wiring harnesses provided in this application adopts the following technical solution:

[0007] A sealing sleeve for automotive wiring harnesses includes a fixing plate and a sealing plate. An abutment is provided between the fixing plate and the sealing plate. The abutment has several sealing grooves on the side facing the sealing plate and several fixing grooves on the side facing the fixing plate. The fixing grooves and sealing grooves are interconnected. Several fixing holes are provided through the fixing plate and several sealing holes are provided through the sealing plate. The fixing holes, sealing holes, sealing grooves, and fixing grooves are coaxially arranged. A first component is provided between the sealing grooves and sealing holes. The first component is used to seal between the wiring harness body and the abutment. A second component is provided between the abutment and the fixing plate. The second component is used to seal between the through holes of sheet metal parts and the abutment.

[0008] By adopting the above technical solution, when multiple automotive wiring harnesses pass through the through-holes in the sheet metal body, the wiring harness bodies are sequentially passed through the coaxially arranged sealing hole, the first component, the sealing groove, and the fixing groove. At this time, only one wiring harness body can be accommodated in the coaxially arranged fixing groove, sealing groove, and sealing hole. After all the wiring harness bodies have passed through the sealing plate, the first component, and the abutment, the first component is used to seal the connection between the wiring harness body and the abutment. After the wiring harness body and the abutment are sealed and connected, the wiring harness body is fixedly installed on the sealing plate and the abutment, and the sealing plate and the abutment are locked and fixed. Then, the second component is installed in the through-hole of the sheet metal body, and the wiring harness body is then... One end protruding from the fixing groove passes through the second component and the fixing hole in sequence. At this time, the fixing hole, fixing groove, sealing groove and sealing hole set coaxially can only accommodate one wire harness body. After all wire harness bodies have passed through the fixing plate, the second component is used to seal between the sheet metal part through hole and the abutment. After the sheet metal part through hole and the abutment are sealed and connected, the fixing plate and the abutment are locked and installed on the sheet metal part body, and the wire harness body is fixedly installed on the fixing plate. By using the method of individually sealing the wire harness body with the abutment, the gap between the wire harness bodies is reduced, and the sealing effect between the sheet metal part body through hole and the automotive wire harness is achieved.

[0009] Preferably, the fixing plate is provided with several fixing through holes, and fixing bolts are inserted into the fixing through holes.

[0010] By adopting the above technical solution, when the fixing plate is locked and installed on the sheet metal body, the fixing bolt is threaded through the fixing through hole and then connected to the sheet metal body.

[0011] Preferably, an mounting ring is fitted onto the abutment seat, the mounting ring is fixedly connected to the abutment seat, and a plurality of mounting through holes are provided on the mounting ring, with mounting bolts installed in the mounting through holes.

[0012] By adopting the above technical solution, when the abutment seat is locked and installed on the sheet metal body, the mounting bolt is threaded through the mounting through hole and then connected to the sheet metal body.

[0013] Preferably, the abutment seat is fixedly provided with a plurality of connecting screws at one end facing the sealing plate, and a set of connecting nuts are threaded onto the connecting screws. The opposite surfaces of the connecting nuts are used to abut against the sealing plate. A plurality of connecting through holes are opened through the sealing plate for the connecting screws to be inserted.

[0014] By adopting the above technical solution, when the sealing plate and the abutment seat are locked and fixed, the connecting screw passes through the connecting through hole, and the opposite surfaces of the connecting nut abut against the sealing plate.

[0015] Preferably, the first component includes a first sleeve and a plurality of sealing rings. One end of the first sleeve is inserted into a sealing hole and is fixedly connected to the sealing hole. The other end of the first sleeve is used to abut against the sealing rings. The sealing rings are disposed in a sealing groove for the first sleeve to be inserted. The first sleeve, the sealing rings, and the sealing groove are all coaxially arranged. The sealing rings are used to be sleeved on the wire harness body and abut against the inner wall of the sealing groove and the outer wall of the wire harness body.

[0016] By adopting the above technical solution, the wire harness body is sequentially passed through the coaxially arranged sealing hole, the first sleeve, the sealing ring, the sealing groove, and the fixing groove. The sealing plate and the abutment seat are brought close to each other, and the first sleeve is inserted into the sealing groove until the first sleeve and the inner wall of the sealing groove clamp the sealing ring. At this time, the sealing ring undergoes elastic deformation, and the inner ring wall of the sealing ring is tightly attached to the outer wall of the wire harness body, while the outer ring wall of the sealing ring is tightly attached to the inner wall of the sealing groove, thus achieving the effect of sealing the wire harness body and the abutment seat. Then, the sealing plate and the abutment seat are fixedly connected to the wire harness body, and the sealing plate and the abutment seat are locked and fixed to achieve the effect of sealing the wire harness body and the abutment seat.

[0017] Preferably, a first rubber sleeve is provided in the sealing groove, and the sealing ring is located on the side of the first rubber sleeve away from the sealing plate. The first rubber sleeve is fixedly connected to the inner wall of the sealing groove, and the outer ring wall of the first rubber sleeve is in contact with the inner wall of the sealing groove. A first abutting slope is provided on the inner ring wall of the first rubber sleeve, and a first extrusion slope is provided on the outer ring wall of the first sleeve. The first extrusion slope is used to abut against the first abutting slope.

[0018] By adopting the above technical solution, during the process of inserting the first sleeve into the sealing groove, the first extrusion inclined surface abuts against the first abutting inclined surface, causing the first sleeve to extrude the first rubber sleeve and undergo elastic deformation, thereby sealing the outer ring wall of the first sleeve with the inner wall of the sealing groove.

[0019] Preferably, the second component includes a second rubber sleeve and a set of second sleeves, wherein one of the second sleeves is fixedly connected to the end of the abutment facing the fixed plate, and the other second sleeve is fixedly connected to the end of the fixed plate facing the abutment. The second sleeves are coaxially arranged, and the second rubber sleeves are used to be sleeved on the second sleeves. The outer ring wall of the second rubber sleeve is used to fit against the inner wall of the through hole of the sheet metal part. The inner ring wall of the second rubber sleeve is symmetrically provided with second abutment slopes, and the outer ring wall of the second sleeve is provided with second extrusion slopes. The second extrusion slopes are used to abut against the second abutment slopes.

[0020] By adopting the above technical solution, after the wire harness body, sealing plate, and abutment are sealed together, the second rubber sleeve is installed in the through hole of the sheet metal part, and the end of the wire harness body that passes through the fixing groove passes through a set of second sleeves and fixing holes in sequence. After all the wire harness bodies have passed through the fixing plate, the abutment and fixing plate move closer to the sheet metal part body. During the process of inserting the second sleeve into the second rubber sleeve, the second extrusion slope abuts against the second abutment slope, causing the second sleeve to compress the second rubber sleeve and undergo elastic deformation, thereby sealing the outer ring wall of the second sleeve with the through hole of the sheet metal part. Then, the fixing plate and abutment are locked and installed on the sheet metal part body, and the wire harness body is fixedly installed on the fixing plate, achieving the effect of sealing connection between the abutment and the sheet metal part body.

[0021] Preferably, the abutment seat and the fixing plate have limiting ring grooves on their opposite sides, and limiting rubber rings are inserted into the limiting ring grooves. The opposite sides of the limiting rubber rings are fixedly connected to the end wall of the second rubber sleeve. The opposite sides of the limiting rubber rings are used to abut against the sheet metal body, and the opposite sides of the limiting rubber rings are used to abut against the inner wall of the limiting ring groove.

[0022] By adopting the above technical solution, when the second rubber sleeve is installed in the through hole of the sheet metal part, the opposite surfaces of the limiting rubber rings abut against the sheet metal part body, reducing the axial movement of the second rubber sleeve along the through hole of the sheet metal part. At the same time, when the fixing plate and the abutment seat are locked on the sheet metal part body, the opposite surfaces of the limiting rubber rings abut against the inner wall of the limiting ring groove, thereby achieving the effect of sealing the gap between the sheet metal part body and the limiting ring groove.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. By setting a fixing plate, sealing plate, fixing hole, sealing hole, abutment seat, sealing groove, fixing groove, first component and second component, the gap between the wire harness body is reduced, and the sealing effect between the sheet metal body through hole and the automotive wire harness is achieved;

[0025] 2. By setting the first sleeve and sealing ring, the wire harness body and the abutment seat are sealed together.

[0026] 3. By setting a second rubber sleeve and a second sleeve, the sealing connection between the abutment seat and the sheet metal body is achieved. Attached Figure Description

[0027] Figure 1 This is a cross-sectional view of a sealing sleeve for an automotive wiring harness according to an embodiment of this application.

[0028] Figure 2 This is a cross-sectional view illustrating the connection relationship between the sealing plate and the fixing plate in the embodiments of this application.

[0029] Figure 3This is a cross-sectional view illustrating the connection relationship between the sealing plate and the abutment seat in the embodiments of this application.

[0030] Figure 4 This is a cross-sectional view illustrating the positional relationship between the first sleeve and the first extrusion slope in the embodiments of this application.

[0031] Figure 5 This is a cross-sectional view illustrating the positional relationship between the first rubber sleeve and the first abutting inclined surface in the embodiments of this application.

[0032] Figure 6 This is a cross-sectional view illustrating the connection relationship between the fixing plate and the abutment in the embodiments of this application.

[0033] Figure 7 This is a cross-sectional view illustrating the positional relationship between the second rubber sleeve and the second abutting inclined surface in the embodiments of this application.

[0034] Figure 8 This is a cross-sectional view illustrating the positional relationship between the second sleeve and the second extrusion slope in the embodiments of this application.

[0035] Explanation of reference numerals in the attached drawings: 1. Fixing plate; 11. Fixing hole; 2. Sealing plate; 21. Sealing hole; 3. Abutment seat; 31. Sealing groove; 32. Fixing groove; 4. First component; 41. First sleeve; 411. First extrusion slope; 42. Sealing ring; 43. First rubber sleeve; 431. First abutment slope; 5. Second component; 51. Second rubber sleeve; 511. Second abutment slope; 52. Second sleeve; 521. Second extrusion slope; 53. Limiting rubber ring; 531. Limiting ring groove; 6. Fixing bolt; 61. Fixing through hole; 7. Mounting bolt; 71. Mounting through hole; 72. Mounting ring seat; 8. Connecting screw; 81. Connecting through hole; 82. Connecting nut; 9. Wire harness body; 91. Sheet metal body; 92. Sheet metal through hole. Detailed Implementation

[0036] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0037] This application discloses a sealing sleeve for automotive wiring harnesses. (Refer to...) Figure 1The sheet metal body 91 includes a fixing plate 1 and a sealing plate 2, which are arranged opposite to each other. An abutment seat 3 is provided between the fixing plate 1 and the sealing plate 2. The sealing plate 2 and the abutment seat 3 are installed on one side of the sheet metal body 91, and the fixing plate 1 is installed on the other side of the sheet metal body 91. Several fixing holes 11 are formed through the fixing plate 1, and several fixing grooves 32 are formed on the side of the abutment seat 3 facing the fixing plate 1. Several sealing holes 21 are formed through the sealing plate 2, and several sealing grooves 31 are formed on the side of the abutment seat 3 facing the sealing plate 2. The oppositely arranged fixing holes 11, sealing holes 21, fixing grooves 32, and sealing grooves 31 are coaxially arranged. The coaxially arranged fixing grooves 32 and sealing grooves 31 are interconnected. A single wire harness body 9 is inserted into all the coaxially arranged fixing holes 11, sealing holes 21, fixing grooves 32, and sealing grooves 31. The number of fixing holes 11, sealing holes 21, fixing grooves 32, and sealing grooves 31 are all equal to the number of wire harness bodies 9. A first component 4 is installed between the sealing groove 31 and the sealing hole 21. The first component 4 is used to seal the connection between the wire harness body 9 and the abutment 3. A second component 5 is installed between the abutment 3 and the fixing plate 1. The second component 5 is used to seal the connection between the sheet metal through hole 92 and the abutment 3. After the wire harness body 9 passes through the coaxially arranged sealing hole 21, the first component 4, the sealing groove 31, and the fixing groove 32 in sequence, the first component 4 seals the connection between the wire harness body 9 and the abutment 3. After the wire harness body 9 and the abutment 3 are sealed and connected, the wire harness body 9 is fixedly installed on the sealing plate 2 and the abutment 3, and the sealing plate 2 and the abutment 3 are locked and fixed. Then, the second component 5 is installed in the sheet metal through hole 92, and the end of the wire harness body 9 that protrudes from the fixing groove 32 passes through the second component 5 and the fixing hole 11 in sequence, and the second component 5 seals the connection between the sheet metal through hole 92 and the abutment 3. After sealing the sheet metal part through hole 92 with the abutment seat 3, both the fixing plate 1 and the abutment seat 3 are locked onto the sheet metal part body 91, and the wire harness body 9 is fixedly mounted on the fixing plate 1. By individually sealing the wire harness body 9 with the abutment seat 3, gaps between the wire harness bodies 9 are reduced, achieving a sealing effect between the through hole of the sheet metal part body 91 and the automotive wire harness.

[0038] Reference Figure 2 A number of fixing through holes 61 are provided on the fixing plate 1, and fixing bolts 6 are inserted into the fixing through holes 61. When the fixing plate 1 is locked and installed on the sheet metal body 91, the fixing bolts 6 are threaded into the sheet metal body 91 after passing through the fixing through holes 61.

[0039] Reference Figure 2An mounting ring 72 is fitted onto the abutment seat 3, and the mounting ring 72 is integrally formed with the abutment seat 3. Several mounting through holes 71 are provided through the mounting ring 72, and mounting bolts 7 are inserted into the mounting through holes 71. When the abutment seat 3 is locked onto the sheet metal body 91, the mounting bolts 7 are threaded through the mounting through holes 71 and connected to the sheet metal body 91.

[0040] Reference Figure 2 A plurality of connecting screws 8 are installed on the end of the abutment seat 3 facing the sealing plate 2. A set of connecting nuts 82 are threaded onto the connecting screws 8, and the opposite faces of the connecting nuts 82 are used to abut against the sealing plate 2. A plurality of connecting through holes 81 are formed through the sealing plate 2 for the connecting screws 8 to be inserted. When the sealing plate 2 and the abutment seat 3 are locked and fixed, the connecting screws 8 pass through the connecting through holes 81, and the opposite faces of the connecting nuts 82 abut against the sealing plate 2.

[0041] To achieve a sealed connection between the wire harness body 9 and the abutment 3, refer to Figures 1 to 3 The first component 4 includes a first sleeve 41 and several rubber sealing rings 42. Both the first sleeve 41 and the sealing rings 42 are fitted onto the wire harness body 9, with the inner ring wall of the sealing ring 42 fitting against the outer wall of the wire harness body 9. One end of the first sleeve 41 is inserted into the sealing hole 21, and the first sleeve 41 is welded to the inner wall of the sealing hole 21; the other end of the first sleeve 41 is inserted into the sealing groove 31, where the first sleeve 41 abuts against the sealing ring 42. After the wire harness body 9 is sequentially passed through the coaxially arranged sealing hole 21, first sleeve 41, sealing ring 42, sealing groove 31, and fixing groove 32, the sealing plate 2 and the abutment seat 3 are brought closer together, causing the first sleeve 41 to be inserted into the sealing groove 31 until the first sleeve 41 and the inner wall of the sealing groove 31 clamp the sealing ring 42 tightly. At this point, the sealing ring 42 undergoes elastic deformation. The inner ring wall of the sealing ring 42 is tightly attached to the outer wall of the wire harness body 9, and the outer ring wall of the sealing ring 42 is tightly attached to the inner wall of the sealing groove 31, thus achieving the effect of sealing the wire harness body 9 and the abutment seat 3. Then, both the sealing plate 2 and the abutment seat 3 are fixedly connected to the wire harness body 9, and then the sealing plate 2 and the abutment seat 3 are locked and fixed, achieving the effect of a sealed connection between the wire harness body 9 and the abutment seat 3.

[0042] Reference Figures 3 to 5A first rubber sleeve 43 is installed inside the sealing groove 31, with a sealing ring 42 located on the side of the first rubber sleeve 43 away from the sealing plate 2. The outer ring wall of the first rubber sleeve 43 is in contact with the inner wall of the sealing groove 31, and a first abutting slope 431 is formed on the inner ring wall of the first rubber sleeve 43. The inner diameter of the end of the first rubber sleeve 43 away from the sealing ring 42 is larger than the inner diameter of the end of the first rubber sleeve 43 near the sealing ring 42. A first extrusion slope 411 is formed on the outer ring wall of the first sleeve 41, which abuts against the first abutting slope 431. The outer diameter of the end of the first sleeve 41 away from the sealing ring 42 is larger than the outer diameter of the end of the first sleeve 41 near the sealing ring 42. During the insertion of the first sleeve 41 into the sealing groove 31, the first extrusion slope 411 abuts against the first abutting slope 431, causing the first sleeve 41 to compress the first rubber sleeve 43 and undergo elastic deformation, thereby sealing the outer ring wall of the first sleeve 41 with the inner wall of the sealing groove 31.

[0043] To achieve a sealed connection between the abutment seat 3 and the sheet metal body 91, refer to... Figures 1 to 8The second component 5 includes a second rubber sleeve 51 and a set of second sleeves 52. One second sleeve 52 is integrally formed with the end of the abutment 3 facing the fixing plate 1, and the other second sleeve 52 is integrally formed with the end of the fixing plate 1 facing the abutment 3. The second sleeves 52 are coaxially arranged, and all wire harness bodies 9 pass through the second sleeves 52. The abutment 3 and the fixing plate 1 have limiting ring grooves 531 on their opposite surfaces, and rubber limiting rings 53 are inserted into the limiting ring grooves 531. The opposite surfaces of the limiting rings 53 are integrally formed with the end walls of the second sleeve 51. The second sleeve 51 is installed in the through hole 92 of the sheet metal part by pressing the second sleeve 51 and the limiting rings 53. After the second rubber sleeve 51 is installed in the through hole 92 of the sheet metal part, the opposite surfaces of the limiting rubber ring 53 abut against the sheet metal part body 91, reducing the axial movement of the second rubber sleeve 51 along the through hole 92 of the sheet metal part, and the outer ring wall of the second rubber sleeve 51 is tightly attached to the inner wall of the through hole 92 of the sheet metal part. The inner ring wall of the second rubber sleeve 51 is symmetrically provided with second abutting inclined surfaces 511, and the outer ring wall of the second sleeve 52 is provided with second extrusion inclined surfaces 521, which are used to abut against the second abutting inclined surfaces 511. The inner diameters at both ends of the second rubber sleeve 51 are larger than the inner diameter at the middle position of the second rubber sleeve 51, and the outer diameters at opposite ends of the second sleeve 52 are larger than the outer diameters at opposite ends of the second sleeve 52. After all the wire harness bodies 9 have passed through the fixing plate 1, the abutting seat 3 and the fixing plate 1 move closer to the sheet metal part body 91. During the insertion of the second sleeve 52 into the second rubber sleeve 51, the second extrusion slope 521 abuts against the second abutment slope 511, causing the second sleeve 52 to compress the second rubber sleeve 51 and undergo elastic deformation, thereby sealing the outer ring wall of the second sleeve 52 with the through hole 92 of the sheet metal part. Then, the fixing plate 1 and the abutment seat 3 are both locked onto the sheet metal part body 91. At this time, the limiting rubber ring 53 abuts against the inner wall of the limiting ring groove 531 between the sheet metal part body 91 and the limiting ring groove 531, achieving the effect of sealing the gap between the sheet metal part body 91 and the limiting ring groove 531. Finally, the wire harness body 9 is fixedly installed on the fixing plate 1, achieving the effect of a sealed connection between the abutment seat 3 and the sheet metal part body 91.

[0044] The implementation principle of a sealing sleeve for automotive wiring harnesses according to an embodiment of this application is as follows: A fixing hole 11, a sealing hole 21, a fixing groove 32, and a sealing groove 31 are coaxially arranged. Only one wiring harness body 9 is inserted into each groove. A sealing connection is achieved between the abutment seat 3 and the wiring harness body 9 via a first sleeve 41 and a sealing ring 42. After all wiring harness bodies 9 are sealed to the abutment seat 3, a sealing connection is achieved between the abutment seat 3 and the sheet metal body 91 via a second sleeve 52 and a second rubber sleeve 51. By using a method where each wiring harness body 9 is individually sealed to the abutment seat 3, gaps between the wiring harness bodies 9 are reduced, achieving a sealing effect between the through-hole of the sheet metal body 91 and the automotive wiring harness.

[0045] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A sealing sleeve for automotive wiring harnesses, comprising a fixing plate and a sealing plate, characterized in that: An abutment is provided between the fixing plate and the sealing plate. The abutment has several sealing grooves on the side facing the sealing plate and several fixing grooves on the side facing the fixing plate. The fixing grooves and sealing grooves are interconnected. Several fixing holes are provided through the fixing plate and several sealing holes are provided through the sealing plate. The fixing holes, sealing holes, sealing grooves and fixing grooves are coaxially arranged. A first component is provided between the sealing grooves and sealing holes. The first component is used to seal between the wire harness body and the abutment. A second component is provided between the abutment and the fixing plate. The second component is used to seal between the sheet metal part through hole and the abutment.

2. The sealing sleeve for automotive wiring harnesses according to claim 1, characterized in that: The fixing plate is provided with several fixing through holes, and fixing bolts are inserted into the fixing through holes.

3. A sealing sleeve for automotive wiring harnesses according to claim 1, characterized in that: An installation ring seat is fitted onto the abutment seat, and the installation ring seat is fixedly connected to the abutment seat. Several installation through holes are provided through the installation ring seat, and installation bolts are installed in the installation through holes.

4. A sealing sleeve for automotive wiring harnesses according to claim 1, characterized in that: Several connecting screws are fixedly installed on the end of the abutment facing the sealing plate. A set of connecting nuts are threaded onto the connecting screws. The opposite surfaces of the connecting nuts are used to abut against the sealing plate. Several connecting through holes are opened through the sealing plate for the connecting screws to be inserted.

5. A sealing sleeve for automotive wiring harnesses according to claim 1, characterized in that: The first component includes a first sleeve and several sealing rings. One end of the first sleeve is inserted into a sealing hole and is fixedly connected to the sealing hole. The other end of the first sleeve is used to abut against the sealing rings. The sealing rings are disposed in a sealing groove for the first sleeve to be inserted. The first sleeve, sealing rings, and sealing grooves are all coaxially arranged. The sealing rings are used to be sleeved on the wire harness body and abut against the inner wall of the sealing groove and the outer wall of the wire harness body.

6. A sealing sleeve for automotive wiring harnesses according to claim 5, characterized in that: A first rubber sleeve is provided in the sealing groove, and the sealing ring is located on the side of the first rubber sleeve away from the sealing plate. The first rubber sleeve is fixedly connected to the inner wall of the sealing groove. The outer ring wall of the first rubber sleeve is in contact with the inner wall of the sealing groove. A first abutting slope is provided on the inner ring wall of the first rubber sleeve, and a first extrusion slope is provided on the outer ring wall of the first sleeve. The first extrusion slope is used to abut against the first abutting slope.

7. A sealing sleeve for automotive wiring harnesses according to claim 1, characterized in that: The second component includes a second rubber sleeve and a set of second sleeves, wherein one second sleeve is fixedly connected to the end of the abutment facing the fixed plate, and the other second sleeve is fixedly connected to the end of the fixed plate facing the abutment. The second sleeves are coaxially arranged, and the second rubber sleeves are used to be sleeved on the second sleeves. The outer ring wall of the second rubber sleeve is used to fit against the inner wall of the through hole of the sheet metal part. The inner ring wall of the second rubber sleeve is symmetrically provided with second abutment slopes, and the outer ring wall of the second sleeve is provided with second extrusion slopes. The second extrusion slopes are used to abut against the second abutment slopes.

8. A sealing sleeve for automotive wiring harnesses according to claim 7, characterized in that: The abutment seat and the fixing plate both have limiting ring grooves on their opposite sides. A limiting rubber ring is inserted into the limiting ring groove. The opposite sides of the limiting rubber ring are fixedly connected to the end wall of the second rubber sleeve. The opposite sides of the limiting rubber ring are used to abut against the sheet metal body. The opposite sides of the limiting rubber ring are used to abut against the inner wall of the limiting ring groove.

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