Wire harness via hole rubber part for door post of automobile door

Abstract

The utility model relates to the technical field of wire harness fixing, and discloses a wire harness via hole rubber part for an automobile door post, which comprises a circular fixing part, an outer rubber ring and an inner rubber ring are fixedly connected to the surface of one side of the circular fixing part, and the outer rubber ring and the inner rubber ring are both concentrically arranged with the circular fixing part. The supporting piece enters the annular groove and then makes contact with the outer spring piece and the inner spring piece, so that the outer spring piece is bent outwards to make contact with the outer rubber ring, the outer rubber ring expands outwards to make contact with the inner wall of the threading hole, pressure is applied, and the whole rubber piece is fixed into the threading hole; the inner spring piece is bent inwards to make contact with the inner rubber ring, the inner rubber ring deforms inwards to make contact with the surface of the wire harness and exert pressure, and therefore the wire harness can be fixed into the inner rubber ring, fixing and sealing of the inner ring and the outer ring can be completed synchronously, existing gaps are reduced, and the sealing effect and the sound insulation effect of a vehicle are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wire harness fixing, in particular to a wire harness through-hole rubber piece used for a door pillar of an automobile. Background Art

[0002] The overall layout of a car is divided into dry areas and wet areas. The passenger compartment and luggage compartment are generally dry areas and are basically unaffected by rain. The wet area refers to the area outside the passenger compartment that directly interacts with the external environment and is often affected by rain and the external environment. The wiring harness layout often moves from the wet area to the dry area. The rubber parts used in the wiring harness are used to separate the wet and dry areas. The development trend of automobiles is towards intelligence and new energy. New technologies such as Ethernet, CANFD, and high-voltage wiring harnesses are constantly being integrated into the design of wiring harnesses. The more functions there are, the more complex the wiring harness, which serves as the "nervous system" of the car, will be. The corresponding wiring harness via diameter has been significantly improved, and the requirements for wiring harness rubber parts are becoming higher and higher. Traditional wiring harness rubber parts are often fixed by the interference fit between the rubber parts and the holes.

[0003] In the prior art, a wiring harness through-hole rubber part with authorization announcement number CN217374391U includes a rubber part body and a metal bracket. The metal bracket is sleeved on the rubber part body and installed together with the rubber part body in the wiring harness through-hole of the vehicle body sheet metal. The rubber part body includes a mounting portion and a wiring harness channel extending from the center hole of the mounting portion to both ends. The ends of the wiring harness channel are a wire outlet and a wire inlet. The mounting portion is flanked by wing-shaped structures with mounting holes for fixing the rubber part body to the vehicle body sheet metal. The utility model adopts a hard skeleton structure of the rubber part. When dealing with larger wire diameters, it avoids the warping and deformation of the fitting edge, thereby preventing problems such as water leakage and reduced sound insulation effect.

[0004] In the above technical solution, the rubber part cannot make the inner and outer rings of the rubber ring expand and deform inward and outward directions synchronously, which will lead to poor connection between the rubber part, the wire hole and the wiring harness, and easily leave gaps, affecting the vehicle's sound insulation and sealing effects. For this reason, we propose a wiring harness through-hole rubber part for automobile door pillars. Utility Model Content

[0005] The utility model provides a wiring harness through-hole rubber part for a door pillar of an automobile, which solves the technical problem that the rubber part cannot make the inner ring and the outer ring of the rubber ring expand and deform inward and outward directions synchronously, which leads to poor connection between the rubber part, the wire through-hole and the wiring harness, and easily leaves gaps, thereby affecting the vehicle's sound insulation and sealing effects.

[0006] In order to solve the above technical problems, the utility model provides a wiring harness through-hole rubber part for a door pillar of an automobile, comprising a circular fixing part, an outer rubber ring and an inner rubber ring being fixedly connected to one side surface of the circular fixing part, the outer rubber ring and the inner rubber ring being concentrically arranged with the circular fixing part, an annular mounting groove being formed between the inner wall of the outer rubber ring and the outer wall of the inner rubber ring, a movable ring being movably mounted inside the annular mounting groove and sleeved on the outside of the inner rubber ring, a plurality of outer spring sheets being annularly distributed along the outer periphery of the side surface of the movable ring away from the circular fixing part and fixedly connected thereto, a plurality of inner spring sheets being annularly distributed along the inner edge of the side surface of the movable ring away from the circular fixing part and fixedly connected thereto, an annular groove being formed between the plurality of annularly distributed inner spring sheets and the plurality of outer spring sheets, a support part being movably mounted inside the annular groove.

[0007] As a further technical solution of the present invention, the support member includes a movable member, and a support ring is fixedly mounted on one side surface of the movable member.

[0008] As a further technical solution of the present invention, the cross-section of the support ring is set to be an isosceles trapezoid, the outer diameter of the support ring gradually decreases from one end close to the movable part to the other end, and the inner diameter of the support ring gradually expands from one end close to the movable part to the other end.

[0009] As a further technical solution of the present invention, the support ring is movably connected inside the annular groove, and the outer peripheral surface of the support ring is provided with an external thread.

[0010] As a further technical solution of the present invention, a plurality of the annularly distributed outer spring sheets are provided with internal threads on one side surface close to the annular groove, and the internal threads are threadedly connected to the external threads.

[0011] As a further technical solution of the present invention, the outer spring leaf and the inner spring leaf are made of elastic material.

[0012] As a further technical solution of the present invention, a threading groove is provided through the center of each of the circular fixed part and the movable part.

[0013] Compared with the related art, the wiring harness through-hole rubber part for automobile door pillars provided by the present invention has the following beneficial effects:

[0014] 1. A wiring harness through-hole rubber part for a door pillar of an automobile. During use, the rubber part enters an annular groove through a support member and contacts an outer spring leaf and an inner spring leaf, thereby causing the outer spring leaf to bend outward and contact the outer rubber ring, causing the outer rubber ring to expand outward and contact the inner wall of the wire threading hole and apply pressure, thereby fixing the rubber part as a whole in the wire threading hole. At the same time, the inner spring leaf is bent inward and contacted with the inner rubber ring, causing the inner rubber ring to deform inward and contact the surface of the wiring harness and apply pressure, thereby fixing the wiring harness inside the inner rubber ring, and simultaneously completing the fixation and sealing of the inner and outer rings, reducing existing gaps, and improving the sealing and sound insulation effects of the vehicle.

[0015] 2. A wiring harness through-hole rubber part used in automobile door pillars. During use, the internal thread and the external thread cooperate to rotate the movable part to rotate the support ring to the inside of the annular groove, thereby completing the fixation and sealing of the wiring harness and improving the convenience of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a wiring harness through-hole rubber part used in a car door pillar;

[0017] Figure 2 This is a schematic diagram of the overall explosion structure of a wiring harness through-hole rubber part used in a car door pillar;

[0018] Figure 3 This is a schematic structural diagram of a circular fixing member for a wiring harness through-hole rubber member of a vehicle door pillar;

[0019] Figure 4 This is a schematic structural diagram of a movable part of a wiring harness through-hole rubber part used in a door pillar of an automobile;

[0020] Figure 5 The present invention is a structural schematic diagram of a support ring for a wiring harness through-hole rubber part used in a car door pillar.

[0021] Numbers in the figure: 1, circular fixing part; 11, wire threading groove; 2, outer rubber ring; 3, inner rubber ring; 4, movable ring; 5, outer spring sheet; 6, inner spring sheet; 7, support part; 71, internal thread; 72, movable part; 73, support ring; 74, external thread. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Example 1, by Figure 1-5 The utility model is given as follows: a wiring harness through-hole rubber part for a door pillar of an automobile comprises a circular fixing part 1, an outer rubber ring 2 and an inner rubber ring 3 are fixedly connected to the surface of one side of the circular fixing part 1, the outer rubber ring 2 and the inner rubber ring 3 are both concentrically arranged with the circular fixing part 1, an annular mounting groove is formed between the inner wall of the outer rubber ring 2 and the outer wall of the inner rubber ring 3, a movable ring 4 is movably installed inside the annular mounting groove and is sleeved on the outside of the inner rubber ring 3, a side surface of the movable ring 4 away from the circular fixing part 1 is annularly distributed along the outer periphery and fixedly connected to a plurality of outer spring sheets 5, a side surface of the movable ring 4 away from the circular fixing part 1 is annularly distributed along the inner edge and fixedly connected to a plurality of inner spring sheets 6, an annular groove is formed between the plurality of annularly distributed inner spring sheets 6 and the plurality of outer spring sheets 5, the outer spring sheets 5, the inner spring sheets 6 and The connection part of the movable ring 4 is a bending part. When the outer spring piece 5 and the inner spring piece 6 are subjected to external force, they will bend with the bending part as the inflection point. A support member 7 is movably installed inside the annular groove. During use, the support member 7 enters the annular groove and contacts the outer spring piece 5 and the inner spring piece 6, so that the outer spring piece 5 bends outward and contacts the outer rubber ring 2, and the outer rubber ring 2 expands outward and contacts the inner wall of the threading hole and applies pressure, thereby fixing the rubber part as a whole in the threading hole. At the same time, the inner spring piece 6 bends inward and contacts the inner rubber ring 3, so that the inner rubber ring 3 deforms inward and contacts the surface of the wiring harness and applies pressure, thereby fixing the wiring harness inside the inner rubber ring 3, and can simultaneously complete the fixing and sealing of the inner and outer rings, reduce the existing gaps, and improve the sealing effect and sound insulation effect of the vehicle.

[0024] In this embodiment, the support member 7 includes a movable member 72, and a support ring 73 is fixedly installed on one side surface of the movable member 72. The cross-section of the support ring 73 is an isosceles trapezoid. The outer diameter of the support ring 73 gradually decreases from one end close to the movable member 72 to the other end, and the inner diameter of the support ring 73 gradually expands from one end close to the movable member 72 to the other end.

[0025] In this embodiment, the support ring 73 is movably connected to the inside of the annular groove, and the outer peripheral surface of the support ring 73 is provided with an external thread 74. Several annularly distributed outer spring sheets 5 are provided with an internal thread 71 on one side surface close to the annular groove. The internal thread 71 is threadedly connected with the external thread 74. During use, the internal thread 71 cooperates with the external thread 74 to rotate the movable part 72 to rotate and install the support ring 73 to the inside of the annular groove, thereby completing the fixation and sealing of the wiring harness and improving the convenience of operation.

[0026] In this embodiment, the outer spring leaf 5 and the inner spring leaf 6 are made of elastic material.

[0027] In this embodiment, a wire threading groove 11 is provided through the center of each of the circular fixing member 1 and the movable member 72 , and the wire harness can pass through the wire threading groove 11 .

[0028] Working principle:

[0029] During use, the support member 7 enters the annular groove and contacts the outer spring sheet 5 and the inner spring sheet 6, so that the outer spring sheet 5 bends outward and contacts the outer rubber ring 2, and the outer rubber ring 2 expands outward and contacts the inner wall of the threading hole and applies pressure, fixing the rubber member as a whole in the threading hole. At the same time, the inner spring sheet 6 bends inward and contacts the inner rubber ring 3, so that the inner rubber ring 3 deforms inward and contacts the surface of the wiring harness and applies pressure, thereby fixing the wiring harness inside the inner rubber ring 3, and can simultaneously complete the fixing and sealing of the inner and outer rings, reduce the existing gaps, and improve the sealing and sound insulation effects of the vehicle.

[0030] During use, the internal thread 71 cooperates with the external thread 74 to rotate the movable part 72 to install the support ring 73 into the annular groove, thereby fixing and sealing the wiring harness and improving the convenience of operation.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A wiring harness through-hole rubber part for a door pillar of an automobile, comprising a circular fixing part (1), characterized in that: An outer rubber ring (2) and an inner rubber ring (3) are fixedly connected to the surface of one side of the circular fixing member (1). The outer rubber ring (2) and the inner rubber ring (3) are both arranged concentrically with the circular fixing member (1). An annular mounting groove is formed between the inner wall of the outer rubber ring (2) and the outer wall of the inner rubber ring (3). A movable ring (4) sleeved on the outside of the inner rubber ring (3) is movably installed inside the annular mounting groove. The surface of the movable ring (4) away from the circular fixing member (1) is annularly distributed along the outer periphery and fixedly connected to a plurality of outer spring sheets (5). The surface of the movable ring (4) away from the circular fixing member (1) is annularly distributed along the inner edge and fixedly connected to a plurality of inner spring sheets (6). An annular groove is formed between the plurality of annularly distributed inner spring sheets (6) and the plurality of outer spring sheets (5). A support member (7) is movably installed inside the annular groove.

2. The wiring harness through-hole rubber component for automobile door pillars according to claim 1, characterized in that: The support member (7) comprises a movable member (72), and a support ring (73) is fixedly mounted on one side surface of the movable member (72).

3. The wiring harness through-hole rubber component for automobile door pillars according to claim 2, characterized in that: The cross section of the support ring (73) is arranged in an isosceles trapezoidal shape, the outer diameter of the support ring (73) gradually decreases from one end close to the movable part (72) to the other end, and the inner diameter of the support ring (73) gradually increases from one end close to the movable part (72) to the other end.

4. The wiring harness through-hole rubber component for automobile door pillars according to claim 3, characterized in that: The support ring (73) is movably connected inside the annular groove, and an external thread (74) is provided on the outer peripheral surface of the support ring (73).

5. The wiring harness through-hole rubber component for automobile door pillars according to claim 4, characterized in that: An internal thread (71) is provided on one side surface of the plurality of annularly distributed outer spring sheets (5) close to the annular groove, and the internal thread (71) is threadedly connected to the external thread (74).

6. The wiring harness through-hole rubber component for automobile door pillars according to claim 5, characterized in that: The outer spring leaf (5) and the inner spring leaf (6) are made of elastic material.

7. A wiring harness through-hole rubber component for a door pillar of an automobile according to any one of claims 1 to 6, characterized in that: A threading groove (11) is provided through the center of each of the circular fixing member (1) and the movable member (72).

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