CN217401695U

CN217401695U - Steering gear connecting sleeve sealing structure

Info

Publication number: CN217401695U
Application number: CN202220739190.9U
Authority: CN
Inventors: 张吉; 赵向青; 何畅; 王鹏飞; 高尚; 王仕伟
Original assignee: FAW Group Corp
Current assignee: FAW Group Corp
Priority date: 2022-03-31
Filing date: 2022-03-31
Publication date: 2022-09-09
Anticipated expiration: 2032-03-31

Abstract

The utility model provides a steering gear connecting sleeve sealing structure, which comprises a connecting sleeve and a shell, wherein the connecting sleeve is connected with a shell connecting sleeve mounting part of an annular cylindrical structure on the upper part of the shell, the bottom of the connecting sleeve is provided with a plurality of clamping jaws which are evenly distributed along the circumferential direction at intervals, the lower part of the outer wall of the shell connecting sleeve mounting part is provided with a ring-shaped limiting ring which protrudes outwards, an annular sleeve-shaped rubber pad is arranged between the bottom of the connecting sleeve and the top opening of the shell connecting sleeve mounting part, and the rubber pad is clamped between the connecting sleeve and the shell connecting sleeve mounting part after the clamping jaws are clamped with the limiting ring; the utility model discloses simple structure, adapter sleeve and casing pass through the joint of jack catch and spacing ring, have avoided adapter sleeve and casing among the prior art to need through the trouble of external equipment interference fit pressure equipment, and the joint is inseparable, and the rubber pad has increased the compactness of adapter sleeve and casing joint and has provided good sealed effect, and limit structure guarantees the uniqueness of mounted position.

Description

Steering gear connecting sleeve sealing structure

Technical Field

The utility model belongs to the auto steering ware field relates to a steering gear adapter sleeve seal structure.

Background

The good sealing performance of the joint of the steering gear of the passenger car and the front wall of the car body needs to be guaranteed, otherwise, the problem of water leakage of the front wall of the car body can be caused by poor sealing of the joint when the car wades. In addition, the steering gear self-sealing failure can cause the internal parts to rust, so that the steering gear is blocked to cause safety accidents.

The existing diverter product mainly adopts interference fit between a connecting sleeve and a shell in the design structure, but the sealing failure problem at the position cannot be completely avoided due to unreasonable fit size, poor workpieces and other reasons.

At present, similar existing structures, such as chinese patent CN201330548826.8, provide a steering gear housing connecting sleeve, which is a structure similar to the present proposal, the connecting sleeve of the structure is connected with the lower housing through interference fit, and needs special equipment for press fitting, which increases equipment investment and has low production efficiency.

Disclosure of Invention

The utility model discloses an overcome the problem that prior art exists, provide a steering gear adapter sleeve seal structure.

The utility model discloses an adopt following technical scheme to realize:

the utility model provides a steering gear adapter sleeve seal structure, including adapter sleeve and casing, the adapter sleeve is connected with the casing adapter sleeve installation department of the annular cylinder structure on casing upper portion, there are a plurality of jack catchs along circumferencial direction interval evenly distributed in the adapter sleeve bottom, there is the outside bellied annular spacing ring of round in the outer wall lower part of casing adapter sleeve installation department, be provided with the rubber pad of annular cover form between the bottom of adapter sleeve and the open-top of casing adapter sleeve installation department, the jack catch with the spacing ring chucking rubber pad between adapter sleeve and casing adapter sleeve installation department behind the joint.

The further technical scheme comprises the following steps:

the inner wall of the connecting sleeve is provided with a raised strip-shaped inner side limiting structure arranged in the vertical direction, the outer wall of the shell connecting sleeve mounting part is provided with a recessed limiting groove which is matched with the inner side limiting structure and is arranged in the vertical direction, the connecting sleeve is downwards sleeved in the process of the shell connecting sleeve mounting part, and the inner side limiting structure is inserted into the limiting groove, so that the uniqueness of the assembling positions of the connecting sleeve and the shell is ensured.

The top of the rubber pad is provided with an annular outer edge extending outwards, the inner diameter of the upper part of the inner cavity of the connecting sleeve is smaller than that of the lower part of the inner cavity of the connecting sleeve, an annular shoulder is further formed in the inner cavity of the connecting sleeve, the rubber pad is inserted into a cavity of the connecting sleeve mounting part of the shell, and when the clamping jaw is clamped with the limiting ring, the annular outer edge of the rubber pad is tightly pressed between the shoulder and the upper end face of the top opening of the connecting sleeve mounting part of the shell by the shoulder.

The upper surface of the limiting ring is provided with a fillet.

The clamping jaw is in a hook shape with a groove and an inward opening, the hook-shaped part of the clamping jaw is provided with an inclined plane which inclines upwards at the part contacted with the round angle of the limiting ring when the clamping jaw is clamped with the limiting ring downwards, and the inclined plane and the round angle are matched to facilitate the clamping jaw to be connected into the limiting ring in the clamping process of the clamping jaw and the limiting ring.

The lower extreme of inboard limit structure is wedge structure, and the inboard limit structure of being convenient for inserts in the spacing groove.

The bottom of the connecting sleeve is provided with four clamping jaws which are evenly distributed along the circumferential direction at intervals.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model provides a steering gear adapter sleeve seal structure, constitute including adapter sleeve, rubber pad and casing triplex. Wherein, the connecting sleeve matches with the limiting groove on the shell through the limiting structure at the inner side during assembly, and the uniqueness of the assembly positions of the connecting sleeve and the shell is ensured. The rubber pad assembly is between the adapter sleeve of nylon material and the casing of metal material, and adapter sleeve and casing pass through jack catch and spacing ring joint back, and the rubber pad is compressed along the axial, and rubber pad compression deformation has played ascending elastic support effect, guarantees that the adapter sleeve of nylon material and the casing of metal material pass through jack catch and spacing ring joint assembly back fastening relatively and firm, has guaranteed the sealing performance of adapter sleeve and casing simultaneously, prevents that water and foreign matter from entering into in the steering gear.

The clamping structure of the clamping jaw and the limiting ring is characterized in that the clamping structure is used for clamping the connecting sleeve and the shell together through the elastic action of the four clamping jaws on the connecting sleeve, an inclined plane is arranged on one side, matched with the limiting ring, of the clamping jaw, and meanwhile, a fillet structure is arranged on one side, matched with the clamping ring, of the limiting ring, so that the clamping jaw and the limiting ring are convenient to assemble.

The limiting structure on the inner side of the connecting sleeve is matched with the limiting groove on the shell, so that the uniqueness of the assembling positions of the limiting structure and the shell is ensured. The lower end of the limiting structure on the connecting sleeve is provided with a wedge-shaped structure, so that the connecting sleeve and the shell are convenient to assemble.

Drawings

The invention will be further described with reference to the accompanying drawings:

fig. 1 is the utility model provides a decomposition structure schematic diagram of a steering gear adapter sleeve seal structure.

Fig. 2 is the utility model provides a longitudinal section of steering gear adapter sleeve seal structure.

Fig. 3 is a schematic partial sectional view of the clamping jaw and the limiting ring before clamping.

Fig. 4 is a schematic partial sectional view of the clamping jaw and the limiting ring after clamping.

Fig. 5 is a schematic structural view of the inner side limiting structure and the limiting groove of the present invention.

Fig. 6 is a transverse sectional view of the overlooking angle of the inner limiting structure and the limiting groove of the present invention.

Fig. 7 is a schematic structural view of the rubber pad and the annular outer edge thereof.

Fig. 8 is a longitudinal sectional view of the rubber pad and its annular outer edge of the present invention.

In the figure: 1. the connecting sleeve comprises a connecting sleeve body, 2 parts of a rubber pad, 3 parts of a shell body, 4 parts of a shell body connecting sleeve installation part, 11 parts of an inner side limiting structure, 12 parts of a limiting groove, 13 parts of a clamping jaw, 14 parts of a limiting ring, 15 parts of a shoulder, 21 parts of an annular outer edge, 111 parts of a wedge-shaped structure, 131 parts of an inclined surface and 141 parts of a round angle.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings:

the utility model provides a steering gear adapter sleeve seal structure, as shown in figure 1 and figure 2, including adapter sleeve 1 and casing 3, adapter sleeve 1 is connected with casing adapter sleeve installation department 4 of the annular cylinder structure on casing 3 upper portion, there are four jack catchs 13 along circumferencial direction interval evenly distributed adapter sleeve 1 bottom, there is the outside bellied annular spacing ring 14 of round in the outer wall lower part of casing adapter sleeve installation department 4, be provided with annular cover form rubber pad 2 between the bottom of adapter sleeve 1 and the open-top of casing adapter sleeve installation department, jack catchs 13 and spacing ring 14 behind the joint with rubber pad 2 chucking between adapter sleeve 1 and casing adapter sleeve installation department 4.

As shown in fig. 5 and 6, in this embodiment, the inner wall of the connecting sleeve 1 has a raised strip-shaped inner limiting structure 11 arranged along the vertical direction, the outer wall of the casing connecting sleeve mounting portion 4 has a recessed limiting groove 12 arranged along the vertical direction and matched with the inner limiting structure 11, the connecting sleeve 1 is downwards sleeved on the casing connecting sleeve mounting portion 4, and the inner limiting structure 11 is inserted into the limiting groove 12, so as to ensure the uniqueness of the assembling position of the connecting sleeve 1 and the casing 3. Further, in order to facilitate the insertion of the inner limiting structure 11 into the limiting groove 12, the lower end of the inner limiting structure 11 is a wedge-shaped structure 111.

In the embodiment, as shown in fig. 7 and 8, the top of the rubber pad 2 has an annular outer edge 21 extending outward, as shown in fig. 2, the inner diameter of the upper part of the inner cavity of the connecting sleeve 1 is smaller than the inner diameter of the lower part of the inner cavity of the connecting sleeve 1, so that an annular shoulder 15 is formed in the inner cavity of the connecting sleeve 1, the rubber pad 2 is inserted into the cavity of the connecting sleeve mounting part 4 of the housing, and when the claws 13 are engaged with the limit ring 14, the annular outer edge 21 of the rubber pad 2 is pressed between the shoulder 15 and the upper end surface of the top opening of the connecting sleeve mounting part 4 of the housing by the shoulder 15.

As shown in fig. 3 and 4, in this embodiment, the upper surface of the limit ring 14 has a rounded corner 141, the claw 13 is in a hook shape with a groove and an inward opening, the hook-shaped portion of the claw 13 has an inclined surface 131 inclined upward at a portion contacting with the rounded corner 141 of the limit ring 14 when the claw 13 is clamped with the limit ring 14 downward, and in the clamping process of the claw 13 with the limit ring 14, the inclined surface 131 and the rounded corner 141 cooperate to reduce deformation and friction during clamping contact, so that the claw 13 can be conveniently clamped into the limit ring 14.

Claims

1. The utility model provides a steering gear adapter sleeve seal structure, including adapter sleeve (1) and casing (3), adapter sleeve (1) is connected with casing adapter sleeve installation department (4) of the annular cylinder structure on casing (3) upper portion, a serial communication port, adapter sleeve (1) bottom has a plurality of jack catchs (13) along circumferencial direction interval evenly distributed, the outer wall lower part of casing adapter sleeve installation department (4) has outside bellied annular spacing ring of round (14), be provided with annular cover-like rubber pad (2) between the top opening of the bottom of adapter sleeve (1) and casing adapter sleeve installation department (4), jack catch (13) and spacing ring (14) joint back with rubber pad (2) chucking between adapter sleeve (1) and casing adapter sleeve installation department (4).

2. The connecting sleeve sealing structure of the steering gear according to claim 1, wherein the inner wall of the connecting sleeve (1) is provided with a raised strip-shaped inner limiting structure (11) arranged along the vertical direction, the outer wall of the housing connecting sleeve mounting part (4) is provided with a recessed limiting groove (12) which is matched with the inner limiting structure (11) and arranged along the vertical direction, the connecting sleeve (1) is downwards sleeved in the housing connecting sleeve mounting part (4), and the inner limiting structure (11) is inserted into the limiting groove (12), so that the uniqueness of the assembling position of the connecting sleeve (1) and the housing (3) is ensured.

3. The steering gear connecting sleeve sealing structure according to claim 1, wherein the top of the rubber gasket (2) is provided with an annular outer edge (21) extending outwards, the inner diameter of the upper part of the inner cavity of the connecting sleeve (1) is smaller than the inner diameter of the lower part of the inner cavity of the connecting sleeve (1), an annular shoulder (15) is further formed in the inner cavity of the connecting sleeve (1), the rubber gasket (2) is inserted into the cavity of the housing connecting sleeve mounting part (4), and when the clamping jaw (13) is clamped with the limiting ring (14), the annular outer edge (21) of the rubber gasket (2) is pressed between the shoulder (15) and the upper end face of the top opening of the housing connecting sleeve mounting part (4) by the shoulder (15).

4. The steering adapter sleeve seal structure according to claim 1, wherein the upper surface of the retainer ring (14) is provided with a rounded corner (141).

5. The connecting sleeve sealing structure of the steering gear according to claim 4, wherein the jaw (13) is in a hook shape with a groove and an inward opening, the hook-shaped part of the jaw (13) is provided with an inclined surface (131) which inclines upwards at the part which is contacted with the fillet (141) of the limiting ring (14) when the jaw (13) is clamped with the limiting ring (14) downwards, and the inclined surface (131) and the fillet (141) are matched to facilitate the clamping of the jaw (13) into the limiting ring (14) in the clamping process of the jaw (13) and the limiting ring (14).

6. The steering gear connecting sleeve sealing structure according to claim 2, wherein the lower end of the inner side limiting structure (11) is a wedge-shaped structure (111) for facilitating the insertion of the inner side limiting structure (11) into the limiting groove (12).

7. A diverter coupling sleeve sealing structure according to claim 1, characterized in that the coupling sleeve (1) has four jaws (13) at the bottom which are evenly spaced in the circumferential direction.