Novel automobile steering engine assembly

Abstract

The utility model provides a novel automobile steering gear assembly, and belongs to the technical field of automobile accessories. The problem that an existing automobile steering machine is poor in sealing performance is solved. The novel automobile steering gear assembly comprises a rack and a shell for installing the rack, the end of the rack is connected with a connecting disc, a connecting shaft matched with the connecting disc is arranged outside the shell, a loose joint sleeve is arranged on the connecting shaft and between the connecting shaft and the connecting disc, the loose joint sleeve is located in the shell, and a sealing sleeve playing a sealing role is arranged between the connecting shaft and the loose joint sleeve. The sealing sleeve is of a rubber structure, a plurality of elastic grooves are evenly distributed in the outer ring of the sealing sleeve, a plurality of sealing protrusions are arranged between the inner wall of the sealing sleeve and the connecting shaft, the sealing protrusions are distributed at intervals and attached to the connecting shaft, a sealing limiting lip is arranged at the end of the sealing sleeve, and a sealing groove for the sealing limiting lip to be clamped in is formed in the loose joint sleeve. The sealing structure has the advantage that the sealing performance is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automotive parts, and relates to an automotive steering gear assembly, in particular to a new type of automotive steering gear assembly. Background Art

[0002] At present, the automotive steering gear assembly includes a rack and pinion meshing steering gear structure. A housing is arranged outside the rack of this structure, and a sealing structure is used to seal between the port of the housing and external parts. However, the existing sealing structure is thin and has a high degree of vulnerability, which affects the sealing performance. Summary of the Invention

[0003] The purpose of the utility model is to provide a new type of automotive steering gear assembly with high sealing performance for the above problems existing in the prior art.

[0004] The purpose of the utility model can be achieved by the following technical solutions: A new type of automotive steering gear assembly includes a rack and a housing for installing the rack. It is characterized in that a connecting disc is connected to the end of the rack, a connecting shaft matching with the connecting disc is arranged outside the housing, a loose joint sleeve is arranged between the connecting shaft and the connecting disc, the loose joint sleeve is located inside the housing, a sealing sleeve for sealing is arranged between the connecting shaft and the loose joint sleeve, the sealing sleeve is of a rubber structure, and a plurality of elastic grooves are evenly distributed on the outer circle of the sealing sleeve. There are a plurality of sealing protrusions between the inner wall of the sealing sleeve and the connecting shaft. The plurality of sealing protrusions are spaced apart and fit on the connecting shaft. The end of the sealing sleeve has a sealing limit lip, and the loose joint sleeve has a sealing groove for the sealing limit lip to be inserted into.

[0005] In the above new type of automotive steering gear assembly, the inner wall of the sealing sleeve has a slotted opening, and the connecting shaft has a stepped portion matching with the slotted opening.

[0006] Compared with the prior art, the new type of automotive steering gear assembly has the advantage of improving the sealing performance. Brief Description of the Drawings

[0007] Figure 1 It is a perspective view of the new type of automotive steering gear assembly.

[0008] Figure 2 It is a partial cross-sectional view of the new type of automotive steering gear assembly.

[0009] In the figure, 1. Rack; 2. Housing; 3. Connecting disc; 4. Connecting shaft; 5. Loose joint sleeve; 6. Sealing sleeve; 7. Elastic groove; 8. Sealing protrusion; 9. Sealing limit lip; 10. Stepped portion. Detailed Description of the Invention

[0010] The following are specific embodiments of the present utility model and, in conjunction with the accompanying drawings, further describe the technical solutions of the present utility model. However, the present utility model is not limited to these embodiments.

[0011] As Figure 1 、 Figure 2 shown, the new type of automotive steering gear assembly includes a rack 1 and a housing 2 for installing the rack 1. A connecting disc 3 is connected to the end of the rack 1. A connecting shaft 4 mating with the connecting disc 3 is provided outside the housing 2. A loose joint sleeve 5 is provided between the connecting shaft 4 and the connecting disc 3. The loose joint sleeve 5 is located inside the housing 2. A sealing sleeve 6 for sealing is provided between the connecting shaft 4 and the loose joint sleeve 5. The sealing sleeve 6 is made of rubber structure, and a number of elastic grooves 7 are evenly distributed on the outer circle of the sealing sleeve 6. Through the number of elastic grooves 7, the sealing sleeve 6 is more attached with telescopic elasticity, and the installation sleeve is more stable. A number of sealing protrusions 8 are provided between the inner wall of the sealing sleeve 6 and the connecting shaft 4. The number of sealing protrusions 8 are spaced apart and fit on the connecting shaft 4, playing a point-to-surface sealing, and the sealing performance is more reliable. The end of the sealing sleeve 6 has a sealing limit lip 9, and the loose joint sleeve 5 has a sealing groove for the sealing limit lip 9 to snap into. By positioning the sealing sleeve 6, the installation of the sealing sleeve 6 is more stable.

[0012] Preferably, the inner wall of the sealing sleeve 6 has a slotted opening, and the connecting shaft 4 has a stepped portion 10 mating with the slotted opening.

[0013] The specific embodiments described herein are merely illustrative of the spirit of the present utility model. Those skilled in the technical field to which the present utility model pertains can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, but will not deviate from the spirit of the present utility model or exceed the scope defined by the appended claims.

[0014] Although terms such as rack 1, housing 2, connecting disc 3, connecting shaft 4, loose joint sleeve 5, sealing sleeve 6, elastic groove 7, sealing protrusion 8, sealing limit lip 9, stepped portion 10, etc. are used more in this article, the possibility of using other terms is not excluded. Using these terms is only for more conveniently describing and explaining the essence of the present utility model; interpreting them as any additional limitation is contrary to the spirit of the present utility model.

Claims

1. A novel automobile steering gear assembly, comprising a rack (1) and a housing (2) for mounting the rack (1), characterized in that: The end of the rack (1) is connected to a connecting disk (3), the housing (2) is provided with a connecting shaft (4) matched with the connecting disk (3), a flexible sleeve (5) is provided on the connecting shaft (4) and between the connecting disk (3), the flexible sleeve (5) is located in the housing (2), a sealing sleeve (6) is provided between the connecting shaft (4) and the flexible sleeve (5) for sealing, the sealing sleeve (6) is a rubber structure, and a plurality of elastic grooves (7) are evenly distributed on the outer ring of the sealing sleeve (6), a plurality of sealing protrusions (8) are provided on the inner wall of the sealing sleeve (6) and between the sealing sleeve (4), the plurality of sealing protrusions (8) are distributed at intervals and fit on the connecting shaft (4), a sealing limit lip (9) is provided at the end of the sealing sleeve (6), and a sealing groove for the sealing limit lip (9) to be inserted is provided on the flexible sleeve (5).

2. A new type of automobile steering gear assembly according to claim 1, characterized in that: The inner wall of the sealing sleeve (6) has a groove, and the connecting shaft (4) has a step portion (10) matching the groove.

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