Novel automobile transmission steering column

Abstract

The utility model provides a novel automobile transmission steering column, and belongs to the technical field of automobile accessories. The novel automobile transmission steering column solves the problem that sealing performance between an existing novel automobile transmission steering column and an automobile frame transmission shaft is poor. The novel automobile transmission steering pipe column comprises a pipe column body, the outer end of the pipe column body is connected with a transmission shaft, a sealing structure is arranged between the pipe column body and the transmission shaft, and the outer end of the pipe column body is provided with a positioning protrusion protruding outwards in the radial direction and used for the sealing structure to be arranged in a sleeved mode. The sealing structure comprises a body part, a sealing part formed on the outer ring of the body part and a hanging part formed on the inner ring of the body part, the body part is arranged on the outer ring of the positioning protrusion in a sleeving mode, the sealing part is attached between the positioning protrusion and the transmission shaft, the hanging part is clamped between the positioning protrusion and the tubular column body in a sealing mode, and a sealing lip extending outwards is arranged at the outer end of the sealing part. The utility model has the advantage of high-efficiency sealing.

Description

Technical Field

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

[0002] When the automotive steering column is connected to the frame drive shaft, a sealing structure needs to be provided between the two, which mainly plays the role of dust and water sealing. However, the existing sealing structure between the two is simple in structure and poor in effect, affecting the sealing performance. Summary of the Invention

[0003] The purpose of the utility model is to provide a new type of automotive transmission steering column 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 transmission steering column, including a column body, the outer end of the column body is connected to a drive shaft, and it is characterized in that a sealing structure is provided between the column body and the drive shaft. The outer end of the column body has a radially outward convex positioning projection for the sealing structure to be sleeved. The sealing structure includes a body part, a sealing part formed on the outer circle of the body part, and a hanging part formed on the inner circle of the body part. The body part is sleeved on the outer circle of the positioning projection, the sealing part is attached between the positioning projection and the drive shaft, the hanging part is hermetically clamped between the positioning projection and the column body, and the outer end of the sealing part has a sealing lip extending outward.

[0005] In the above-mentioned new type of automotive transmission steering column, the outer wall of the sealing part has several outward convex sealing rings.

[0006] In the above-mentioned new type of automotive transmission steering column, the longitudinal section of the positioning projection is in a trapezoidal structure.

[0007] Compared with the prior art, the new type of automotive transmission steering column of the utility model has the advantage of high-efficiency sealing. Brief Description of the Drawings

[0008] Figure 1 It is the structural diagram of the new type of automotive transmission steering column.

[0009] Figure 2 It is Figure 1 The enlarged view of part A of

[0010] In the figure, 1. Column body; 2. Drive shaft; 3. Positioning projection; 4. Body part; 5. Sealing part; 6. Hanging part; 7. Sealing lip; 8. Sealing ring. Detailed Description of the Invention

[0011] 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, but the present utility model is not limited to these embodiments.

[0012] As Figure 1 , Figure 2 shown, the novel automotive transmission steering column includes a column body 1. The outer end of the column body 1 is connected to a transmission shaft 2. A sealing structure is provided between the column body 1 and the transmission shaft 2. The outer end of the column body 1 has a radially outwardly protruding positioning projection 3 for the sealing structure to be sleeved thereon. The sealing structure includes a body portion 4, a sealing portion 5 formed on the outer ring of the body portion 4, and a hanging portion 6 formed on the inner ring of the body portion 4. The body portion 4 is sleeved on the outer ring of the positioning projection 3. The sealing portion 5 is attached between the positioning projection 3 and the transmission shaft 2. The hanging portion 6 is hermetically clamped between the positioning projection 3 and the column body 1. The outer end of the sealing portion 5 has a sealing lip 7 extending outward. Through this sealing structure, a good sealing and positioning effect and a high sealing fitting degree are achieved.

[0013] In further detail, the outer wall of the sealing portion 5 has a number of outwardly protruding sealing rings 8, which are directly attached to the end of the transmission shaft 2 to achieve efficient sealing and fitting of point and surface.

[0014] Preferably, the longitudinal section of the positioning projection 3 is in a trapezoidal structure.

[0015] 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 methods for substitution, but will not deviate from the spirit of the present utility model or exceed the scope defined by the appended claims.

[0016] Although terms such as column body 1, transmission shaft 2, positioning projection 3, body portion 4, sealing portion 5, hanging portion 6, sealing lip 7, and sealing ring 8 are used more in this article, the possibility of using other terms is not excluded. Using these terms is only for more convenient description and explanation of 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 transmission steering column, comprising a column body (1), the outer end of the column body (1) being connected to a transmission shaft (2), characterized in that: A sealing structure is provided between the column body (1) and the transmission shaft (2); the outer end of the column body (1) has a radially outwardly protruding positioning protrusion (3) for the sealing structure to be sleeved; the sealing structure comprises a body part (4), a sealing part (5) formed on the outer ring of the body part (4), and a hanging part (6) formed on the inner ring of the body part (4); the body part (4) is sleeved on the outer ring of the positioning protrusion (3); the sealing part (5) is fitted between the positioning protrusion (3) and the transmission shaft (2); the hanging part (6) is sealingly inserted between the positioning protrusion (3) and the column body (1); and the outer end of the sealing part (5) has a sealing lip (7) extending outward.

2. A novel automobile transmission steering column according to claim 1, characterized in that: The outer wall of the sealing portion (5) has a plurality of sealing convex rings (8) protruding outwards.

3. A novel automobile transmission steering column according to claim 1, characterized in that: The positioning protrusion (3) has a trapezoidal structure in its longitudinal section.

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