Double-layer sealed outer pull rod dust cover opening structure

Abstract

The utility model relates to the technical field of dust covers, in particular to a double-layer sealed outer pull rod dust cover opening structure. The waterproof cover comprises a bowl-shaped cover body and an opening part located at the top of the cover body, a skirt edge, waterproof teeth I and waterproof teeth II are sequentially arranged on the outer edge of the opening part from outside to inside, the skirt edge inclines, extends and tilts outwards from the cover body, and the waterproof teeth I and the waterproof teeth II are arranged between the skirt edge and the inner edge of the opening part at intervals. The waterproof teeth I and the waterproof teeth II are tooth-shaped protrusions with triangular sections. The double-layer waterproof teeth are adopted, the triangular section is formed, a multi-stage sealing structure is formed, and water vapor and dust are effectively prevented from entering the space between the cover body and the outer pull rod.

Description

Technical Field

[0001] This utility model relates to the field of dust cover technology, specifically to a double-layer sealed external pull rod dust cover opening structure. Background Technology

[0002] The primary function of existing dust covers is to enclose the outer tie rod, forming a protective barrier to prevent external impurities from entering the tie rod, thereby reducing wear caused by impurity corrosion and extending its service life. Taking the anti-deformation structure of a dust cover for automotive outer tie rods disclosed in Chinese Patent Publication No. CN222085146U as an example, this patent improves the cover body, optimizing aspects such as shape to enhance its anti-deformation capabilities. However, the design of the opening of this dust cover still has shortcomings. As a critical part that directly contacts the outside environment and is easily invaded by impurities, the existing structure fails to effectively prevent impurities from entering, affecting the overall protective effect of the dust cover. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a double-layer sealed external tie rod dust cover opening structure.

[0004] The technical solution adopted in this utility model is as follows:

[0005] A double-layer sealed external pull rod dust cover opening structure includes a bowl-shaped cover body and an opening located at the top of the cover body. The outer edge of the opening is provided with a skirt, waterproof tooth I and waterproof tooth II in sequence from the outside to the inside. The skirt extends outward from the cover body and curves up. Waterproof tooth I and waterproof tooth II are provided at intervals between the skirt and the inner edge of the opening. Waterproof tooth I and waterproof tooth II are both tooth-shaped protrusions with a triangular cross section.

[0006] This technical solution improves the opening of the dust cover by using a double-layered waterproof tooth seal to prevent moisture and dust from entering between the cover and the outer pull rod. The waterproof tooth uses a triangular cross-section for better dust and water resistance. When subjected to minor impacts or pressure, the skirt has a certain degree of elastic deformation to buffer external forces and prevent damage to the internal waterproof tooth structure. Waterproof tooth I and waterproof tooth II are spaced apart between the skirt and the inner edge of the opening, forming a multi-level sealing structure.

[0007] In addition, the double-layer sealed external tie rod dust cover opening structure proposed above according to this utility model may also have the following additional technical features:

[0008] According to one embodiment of the present invention, the top edge heights of the waterproof teeth I and II are the same, and both are lower than the top edge height of the skirt.

[0009] In this technical solution, there are three dust and water barriers: between waterproof tooth I and the skirt, between waterproof tooth I and waterproof tooth II, and between waterproof tooth II and the opening. Therefore, the height of the skirt must be kept at its highest. Waterproof teeth I and waterproof tooth II are at the same height, and together they form a multi-level sealing barrier to further prevent impurities from entering.

[0010] According to one embodiment of the present invention, the tooth-shaped protrusions of the waterproof tooth I and waterproof tooth II include a vertical surface and an inclined surface, with the vertical surface facing the side of the skirt and the inclined surface facing the side of the opening.

[0011] In this technical solution, the vertical surface acts as a blocking surface, directly blocking impurities and increasing the difficulty for them to enter. The angle of the inclined surface makes it difficult for impurities to remain on its surface.

[0012] According to one embodiment of the present invention, both the waterproof tooth I and the waterproof tooth II are integrally formed with the cover body.

[0013] According to one embodiment of the present invention, the opening is provided with a plurality of threaded contraction openings, which cooperate with the external pull rod.

[0014] Compared with the prior art, this utility model has the following advantages:

[0015] This utility model adopts a double-layer waterproof tooth with a triangular cross section to form a multi-level sealing structure, which effectively prevents water vapor and dust from entering between the cover and the outer tie rod. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present invention.

[0017] Figure 2 This is a cross-sectional view of the present invention.

[0018] In the diagram: 1. Cover body; 11. Frame; 2. Mouth; 21. Skirt; 22. Waterproof tooth I; 23. Waterproof tooth II. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0020] Example 1

[0021] like Figure 1 and Figure 2As shown, this embodiment provides a double-layer sealed external pull rod dust cover opening structure, including a bowl-shaped cover body 1 and an opening 2 located at the top of the cover body 1. The outer edge of the opening 2 is provided with a skirt 21, waterproof teeth I 22 and waterproof teeth II 23 in sequence from the outside to the inside. The skirt 21 extends outward from the cover body 1 and is raised. Waterproof teeth I 22 and waterproof teeth II 23 are provided between the skirt 21 and the inner edge of the opening 2. Waterproof teeth I 22 and waterproof teeth II 23 are both tooth-shaped protrusions with a triangular cross section.

[0022] like Figure 1 and Figure 2 As shown, this technical solution improves the opening 2 of the dust cover by using double-layered waterproof teeth for sealing, preventing moisture and dust from entering between the cover body 1 and the outer pull rod. Furthermore, the water-repellent teeth have a triangular cross-section, resulting in better dust and water resistance. When subjected to slight external impacts or pressure, the skirt 21 has a certain elastic deformation capacity, which can buffer external forces and prevent damage to the internal waterproof tooth structure. Waterproof teeth I 22 and waterproof teeth II 23 are spaced apart between the skirt 21 and the inner edge of the opening 2, forming a multi-level sealing structure.

[0023] In addition, the double-layer sealed external tie rod dust cover opening structure proposed above according to this utility model may also have the following additional technical features:

[0024] According to one embodiment of the present invention, the top edge heights of the waterproof teeth I 22 and II 23 are the same, and both are lower than the top edge height of the skirt 21.

[0025] In this technical solution, three dustproof and waterproof barriers are formed between waterproof tooth I 22 and skirt 21, between waterproof tooth I 22 and waterproof tooth II 23, and between waterproof tooth II 23 and opening 2. Therefore, the height of skirt 21 must be kept at its highest. Waterproof teeth I 22 and waterproof tooth II 23 are at the same height, and waterproof teeth I 22 and waterproof tooth II 23 serve as a multi-level sealing barrier to further prevent impurities from entering.

[0026] According to one embodiment of the present invention, the tooth-shaped protrusions of the waterproof tooth I 22 and the waterproof tooth II 23 include a vertical surface and an inclined surface, with the vertical surface disposed on the side facing the skirt edge 21 and the inclined surface disposed on the side facing the opening 2.

[0027] In this technical solution, the vertical surface acts as a blocking surface, directly blocking impurities and increasing the difficulty for them to enter. The angle of the inclined surface makes it difficult for impurities to remain on its surface.

[0028] According to one embodiment of the present invention, the waterproof teeth I22 and II23 are both integrally formed with the cover body 1.

[0029] According to one embodiment of the present invention, the opening 2 is provided with a plurality of threaded contraction openings, which cooperate with the outer pull rod.

[0030] The usage process of the above embodiments is as follows: Figure 1 and Figure 2 As shown, when the dust cover is installed on the outer tie rod, the threaded contraction end fits tightly with the outer tie rod to achieve initial fixation; during normal use, external dust, moisture and other impurities attempt to enter between the cover 1 and the outer tie rod.

[0031] First, the skirt 21 acts as the first barrier. Its outwardly sloping and raised structure can initially block impurities. If impurities come into contact with it, the skirt 21 elastically deforms to buffer the external force and guide the impurities to slide off. If the impurities break through the skirt 21, they will encounter the waterproof teeth I 22. The vertical surface of the waterproof teeth I 22 faces the skirt 21, directly blocking the impurities and increasing the difficulty of their entry. The sloping surface faces the opening 2, making it difficult for impurities to stay. If impurities still break through, the waterproof teeth II 23, as the second line of defense, plays a role in the same way, further preventing impurities from entering. Since the waterproof teeth I 22 and waterproof teeth II 23 are at the same height and lower than the skirt 21, three dustproof and waterproof barriers are formed. Moreover, the waterproof teeth are integrally formed with the cover 1, resulting in a stable structure and good sealing effect. This utility model effectively prevents external impurities from entering through multiple layers of protection, protecting the normal operation of the outer pull rod.

[0032] Although the present invention has been described in detail with reference to the accompanying drawings and preferred embodiments, it is not limited thereto. Various equivalent modifications or substitutions can be made to the embodiments of the present invention by those skilled in the art without departing from the spirit and essence of the present invention, and such modifications or substitutions should all be within the scope of the present invention. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should also be included within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the scope of the claims.

Claims

1. A double-layer sealed external tie rod dust cover opening structure, characterized in that, It includes a bowl-shaped cover (1) and an opening (2) at the top of the cover (1). The outer edge of the opening (2) is provided with a skirt (21), waterproof tooth I (22) and waterproof tooth II (23) from the outside to the inside. The skirt (21) extends outward from the cover (1) and is raised. Waterproof tooth I (22) and waterproof tooth II (23) are provided between the skirt (21) and the inner edge of the opening (2). Waterproof tooth I (22) and waterproof tooth II (23) are both tooth-shaped protrusions with a triangular cross section.

2. The double-layer sealed external tie rod dust cover opening structure as described in claim 1, characterized in that, The top edge heights of the waterproof teeth I (22) and II (23) are the same, and both are lower than the top edge height of the skirt (21).

3. The double-layer sealed external tie rod dust cover opening structure as described in claim 1 or 2, characterized in that, The tooth-shaped protrusions of the waterproof tooth I (22) and waterproof tooth II (23) include a vertical surface and an inclined surface. The vertical surface is provided on the side facing the skirt (21), and the inclined surface is provided on the side facing the mouth (2).

4. The double-layer sealed external tie rod dust cover opening structure as described in claim 3, characterized in that, Both the waterproof teeth I (22) and the waterproof teeth II (23) are integrally formed with the cover body (1).

5. The double-layer sealed external tie rod dust cover opening structure as described in claim 1, characterized in that, The opening (2) is provided with several threaded contraction openings, which cooperate with the outer pull rod.

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