Sealing wire harness structure for vehicle

Abstract

The utility model discloses a sealing wire harness structure for a vehicle, and particularly relates to the field of vehicles, the sealing wire harness structure comprises a sheath and a wire harness body, the wire harness body is inserted into the sheath, the sheath is connected with a connecting cylinder, a sealing assembly is installed in the connecting cylinder, the outer side of the sealing assembly is sleeved with a pressing sleeve, one end of the pressing sleeve abuts against a clamping ring, and the other end of the pressing sleeve abuts against the clamping ring. One end of the connecting cylinder is sleeved with a locking cap, the wire harness body penetrates through the locking cap and the sealing assembly and extends into the sheath, a mounting cavity is formed in the connecting cylinder, a wire harness hole is formed in the connecting position of the mounting cavity and the sheath, two sealing grooves are coaxially formed in the outer side of the wire harness hole, and the pressing sleeve is in sliding connection with the inner wall of the mounting cavity. And the pressing sleeve is sleeved on the rubber sealing pipe. According to the utility model, multiple sealing can be carried out on the wire harness, and the wire harness at the sealing part can be fixed, so that the waterproof effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, and more specifically, to a sealed wire harness structure for vehicles. Background Art

[0002] With the development trend of automotive intelligence and networking, more and more electronic products are installed in vehicles, and the usage amount of wire harnesses is also increasing continuously. When driving in rainy, snowy or dusty weather, rainwater and dust are likely to enter the circuits and electrical appliances through the wire harness channels, causing short circuits or poor contacts, etc., affecting the driving experience and even threatening the safety of users. In order to avoid the above situations and ensure the stable operation of electronic products, the waterproof and sealing of vehicle wire harnesses are essential.

[0003] The utility model patent with the patent publication number CN215528050U discloses a wire harness protection structure and a vehicle, including a flexible sheath for passing through an installation hole on the side of a circular tube. The flexible sheath has an inlet and an outlet. A sealing ring is arranged extending outward at the inlet of the flexible sheath, and a limiting boss is arranged on the outer side wall of the flexible sheath. A limiting groove is formed between the limiting boss and the sealing ring; the sealing ring has a contact surface for contacting the inner wall of the circular tube, and the shape of the contact surface matches the shape of the outer peripheral area of the inner wall of the circular tube located at the installation hole. Installing the wire harness protection structure provided by the application at the installation hole of the circular tube in the vehicle, the wire harness protection structure plays a protective role for the wire harness and has an excellent sealing effect on the installation hole, and has high installation stability on the circular tube.

[0004] However, when this structure is actually used, only a single sealing ring is used for sealing, and there is a risk of water seepage. It can be seen that the sealing performance of this structure needs to be improved. Therefore, a sealed wire harness structure for vehicles is now proposed. Summary of the Utility Model

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a sealed wire harness structure for vehicles to solve the problems raised in the above background art.

[0006] To achieve the above object, the utility model provides the following technical solution: A sealed wire harness structure for vehicles, including a sheath and a wire harness body. The wire harness body is inserted into the sheath. The sheath is connected with a connecting cylinder. A sealing component is installed in the connecting cylinder. A pressure sleeve is sleeved outside the sealing component. One end of the pressure sleeve abuts against a snap ring. One end of the connecting cylinder is sleeved with a locking cap. The wire harness body passes through the locking cap and the sealing component and extends into the sheath.

[0007] Preferably, an installation cavity is arranged in the connecting cylinder. A wire harness hole is opened at the connection between the installation cavity and the sheath. Two sealing grooves are coaxially opened outside the wire harness hole.

[0008] Preferably, the sealing assembly includes a rubber sealing tube disposed in the installation cavity, and the outer portion of the rubber sealing tube has a trapezoidal frustum structure;

[0009] Two first sealing rings, the two first sealing rings are coaxially disposed at one end of the rubber sealing tube, and the two first sealing rings are respectively connected and fitted with the corresponding sealing grooves;

[0010] A plurality of second sealing rings, each of the second sealing rings is uniformly arranged on the inner wall of the rubber sealing tube;

[0011] A sealing piece, the sealing piece is disposed at the other end of the rubber sealing tube, and the diameter dimension of the sealing piece is larger than the inner diameter dimension of the installation cavity.

[0012] Preferably, the pressing sleeve is slidably connected to the inner wall of the installation cavity, and the pressing sleeve is sleeved on the rubber sealing tube.

[0013] Preferably, there are two snap rings, the two snap rings have a semi-circular ring structure, and the inner diameter dimension of the ring formed by the two snap rings is the same as the inner diameter dimension of the end connected to the pressing sleeve.

[0014] Preferably, an extrusion groove and a thread groove are formed in the locking cap, the thread groove is disposed outside the extrusion groove, and the groove depth dimension of the extrusion groove is smaller than the thickness dimension of the sealing piece.

[0015] The technical effects and advantages of the present utility model:

[0016] 1. Through the rubber sealing tube, the first sealing ring, the second sealing ring, the sealing piece, the pressing sleeve, and the locking cap, the pressing sleeve enters the installation cavity, and the inner wall of the pressing sleeve generates a thrust force on the rubber sealing tube in the direction of the sheath, so that the two first sealing rings are squeezed in the corresponding sealing grooves to form a primary seal. The pressing sleeve generates a downward pressure on the rubber sealing tube, so that each second sealing ring squeezes the wire harness body to form a secondary seal, and the locking cap squeezes the sealing piece to form a tertiary seal, thereby ensuring that the position of the wire harness body from the sheath to the end of the connecting cylinder is in a sealed state, realizing multiple seals, and having simple installation, convenient operation, and strong waterproofness;

[0017] 2. Through the setting of the two snap rings, compared with the prior art, the setting of the snap rings can abut against the installation of the pressing sleeve, so that the pressing sleeve can receive a squeezing force into the installation cavity, thereby improving the squeezing strength of the pressing sleeve on the rubber sealing tube, thereby improving the sealing performance, and the installation is convenient and fast. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0019] Figure 2This is a schematic diagram of the overall sectional structure of the present utility model.

[0020] Figure 3 This is a schematic diagram of the internal structure of the installation cavity of the present utility model.

[0021] Figure 4 This is a schematic diagram of the sectional structure of the sealing assembly of the present utility model.

[0022] Figure 5 This is a schematic diagram of the sectional structure of the compression sleeve of the present utility model.

[0023] Figure 6 This is a schematic diagram of the sectional structure of the locking cap of the present utility model.

[0024] The reference numerals are: 1, sheath; 2, connecting cylinder; 3, locking cap; 4, wire harness body; 5, sealing assembly; 501, rubber sealing tube; 502, first sealing ring; 503, second sealing ring; 504, sealing sheet; 6, compression sleeve; 7, snap ring; 9, installation cavity; 10, wire harness hole; 11, sealing groove; 12, extrusion groove; 13, thread groove. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] As shown in the attached Figure 1-6 A vehicle sealing wire harness structure shown in the figure includes a sheath 1 and a wire harness body 4. The wire harness body 4 is inserted into the sheath 1. The sheath 1 is connected with a connecting cylinder 2. A sealing assembly 5 is installed in the connecting cylinder 2. A compression sleeve 6 is sleeved outside the sealing assembly 5. A snap ring 7 abuts against one end of the compression sleeve 6. A locking cap 3 is sleeved on one end of the connecting cylinder 2. The wire harness body 4 passes through the locking cap 3 and the sealing assembly 5 and extends into the sheath 1. An installation cavity 9 is provided in the connecting cylinder 2. A wire harness hole 10 is opened at the connection between the installation cavity 9 and the sheath 1. Two sealing grooves 11 are coaxially opened outside the wire harness hole 10.

[0027] During specific implementation, the compression sleeve 6 is sleeved on the sealing component 5 in advance. The compression sleeve 6 can have a moving space on the sealing component 5. Then, the wire harness body 4 is inserted into the sealing component 5, and then the wire harness body 4 enters the sheath 1 through the wire harness hole 10 and leaves an appropriate length. Then, one end of the sealing component 5 is inserted into the installation cavity 9 opened in the connecting cylinder 2. Then, two snap rings 7 are installed and clamped at the tail of the compression sleeve 6. Finally, the compression sleeve 6 is completely pushed into the installation cavity 9, and the locking cap 3 is connected to the connecting cylinder 2 to press and fix the sealing component 5.

[0028] When installing and fixing waterproofing, due to the extrusion of the sealing component 5 by the compression sleeve 6 and the snap rings 7, one end of the sealing component 5 is pressed in the sealing groove 11. The sealing component 5 is compressed to squeeze the wire harness body 4, and the locking cap 3 squeezes the tail end of the sealing component 5, forming deformable seals at multiple positions to achieve multiple seals, thereby improving the sealing performance and facilitating the improvement of the waterproof effect.

[0029] As shown in the appendix Figure 4 and Figure 5 shown, the sealing component 5 includes a rubber sealing tube 501. The rubber sealing tube 501 is arranged in the installation cavity 9, and the outer part of the rubber sealing tube 501 is in a trapezoidal frustum structure.

[0030] Two first sealing rings 502. The two first sealing rings 502 are coaxially arranged at one end of the rubber sealing tube 501, and the two first sealing rings 502 are respectively connected and matched with the corresponding sealing grooves 11.

[0031] Multiple second sealing rings 503. Each of the second sealing rings 503 is evenly arranged on the inner wall of the rubber sealing tube 501.

[0032] A sealing piece 504. The sealing piece 504 is arranged at the other end of the rubber sealing tube 501, and the diameter size of the sealing piece 504 is larger than the inner diameter size of the installation cavity 9.

[0033] The compression sleeve 6 is slidably connected to the inner wall of the installation cavity 9, and the compression sleeve 6 is sleeved on the rubber sealing tube 501.

[0034] During specific implementation, when the compression sleeve 6 enters the installation cavity 9, the inner wall of the compression sleeve 6 generates a thrust force on the rubber sealing tube 501 towards the sheath 1 direction, causing the two first sealing rings 502 to be squeezed in the corresponding sealing grooves 11 to form a primary seal. The compression sleeve 6 generates a downward pressure on the rubber sealing tube 501, causing each of the second sealing rings 503 to squeeze the wire harness body 4 to form a secondary seal, and the locking cap 3 squeezes the sealing piece 504 to form a tertiary seal. Thus, it is ensured that the position of the wire harness body 4 from the sheath 1 to the end of the connecting cylinder 2 is in a sealed state, achieving multiple seals, and the installation is simple, the operation is convenient, and the waterproof performance is strong.

[0035] As shown in the appendixFigure 2 As shown, there are two snap rings 7. The two snap rings 7 are in a semi-circular ring structure. The inner diameter dimension of the ring formed by the two snap rings 7 is the same as the inner diameter dimension of the end connected to the compression sleeve 6. The arrangement of the snap rings 7 can abut against the installation of the compression sleeve 6, so that the compression sleeve 6 can be subjected to a squeezing force into the installation cavity 9, thereby improving the squeezing strength of the compression sleeve 6 on the rubber sealing tube 501 and thus improving the sealing performance.

[0036] As shown in the appendix Figure 2 and Figure 6 As shown, an extrusion groove 12 and a thread groove 13 are formed in the locking cap 3. The thread groove 13 is arranged outside the extrusion groove 12. The groove depth dimension of the extrusion groove 12 is smaller than the thickness dimension of the sealing piece 504, so as to facilitate the deformation of the sealing piece 504 and improve the sealing performance at the installation position of the locking cap 3.

[0037] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A sealed wiring harness structure for a vehicle, comprising a sheath (1) and a wiring harness body (4), wherein the wiring harness body (4) is inserted into the sheath (1), characterized in that: The sheath (1) is connected to a connecting tube (2), a sealing assembly (5) is installed in the connecting tube (2), a pressing sleeve (6) is sleeved on the outer side of the sealing assembly (5), one end of the pressing sleeve (6) is abutted against a clamping ring (7), one end of the connecting tube (2) is sleeved with a locking cap (3), and the wiring harness body (4) passes through the locking cap (3) and the sealing assembly (5) and extends into the sheath (1); The sealing assembly (5) comprises a rubber sealing tube (501), the rubber sealing tube (501) is arranged in the installation cavity (9), and the exterior of the rubber sealing tube (501) is a trapezoidal frustum structure; Two first sealing rings (502), the two first sealing rings (502) are coaxially arranged at one end of the rubber sealing tube (501), and the two first sealing rings (502) are respectively connected and matched with corresponding sealing grooves (11); A plurality of second sealing rings (503), each of the second sealing rings (503) being evenly arranged on the inner wall of the rubber sealing tube (501); A sealing sheet (504) is arranged at the other end of the rubber sealing tube (501), and the diameter of the sealing sheet (504) is larger than the inner diameter of the installation cavity (9).

2. A sealed wiring harness structure for a vehicle according to claim 1, characterized in that: An installation cavity (9) is provided in the connecting tube (2), a wiring harness hole (10) is provided at the connection between the installation cavity (9) and the sheath (1), and two sealing grooves (11) are coaxially provided on the outer side of the wiring harness hole (10).

3. A sealed wiring harness structure for a vehicle according to claim 2, characterized in that: The pressing sleeve (6) is slidably connected to the inner wall of the installation cavity (9), and the pressing sleeve (6) is sleeved on the rubber sealing tube (501).

4. A sealed wiring harness structure for a vehicle according to claim 3, characterized in that: Two clamping rings (7) are provided, and the two clamping rings (7) are in a semicircular ring structure. The inner diameter of the ring formed by the two clamping rings (7) is the same as the inner diameter of one end connected to the pressing sleeve (6).

5. A sealed wiring harness structure for a vehicle according to claim 4, characterized in that: An extrusion groove (12) and a screw groove (13) are provided in the locking cap (3); the screw groove (13) is arranged outside the extrusion groove (12); and the groove depth of the extrusion groove (12) is smaller than the thickness of the sealing sheet (504).

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