Single-crest dust cover

Abstract

The utility model discloses a single wave crest dust cover which comprises a first cover body, the top end of the first cover body is fixedly connected with a second cover body, the second cover body is provided with a fixing pipe, a protection mechanism is arranged between the second cover body and the fixing pipe, and the protection mechanism comprises a first wave crest part, a second wave crest part and a third wave crest part. The second wave crest part is located between the first wave crest part and the third wave crest part, the first wave crest part, the second wave crest part and the third wave crest part are arranged in a height progressive mode, and the second wave crest part is connected with the second cover body through the first wave crest part. The first wave crest part, the second wave crest part, the third wave crest part, the first bending groove, the second bending groove and the third bending groove are matched with one another, the first wave crest part, the second wave crest part and the third wave crest part increase the swing angle between the fixing pipe and the second cover body, and the stretching degree of the fixing pipe and the second cover body is increased; limit pulling of the dust cover can be relieved conveniently, and the service life of the dust cover is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of single-peak dust cover, in particular to a single-peak dust cover. Background Art

[0002] As we all know, a car is usually a power-driven vehicle with many parts. Some parts of a car need to be protected from dust at the joints when in use, so dust covers are used. Dust covers can usually prevent external dust, mud, water and debris from entering the joints of some parts, while preventing the leakage of lubricating grease of some parts, reducing the wear rate of some parts, and ensuring the stable operation and service life of the transmission system.

[0003] Application number 202121480711.5 mentions a ball bowl type dust cover for a rear axle, which is used to connect the ball bowl part of the universal joint and the sleeve part for connecting the rear axle. The ball bowl part and the sleeve part are coaxially arranged and are both made of flexible materials. A first clamp mounting groove is formed on the outside of the bowl wall of the ball bowl part, and a second clamp mounting groove is formed on the outer wall of one end of the sleeve part, and the other end is connected to the bottom of the bowl of the ball bowl part as a whole.

[0004] The ball bowl part and the sleeve part are used to cover the shaft body for dust protection, and the ball bowl part is provided with an arc section to support the sleeve part. However, when the sleeve part is used at the connection with the arc section, it is usually necessary to perform an angle swing operation. There may be an extreme pulling situation between the sleeve part and the arc part due to the short stretching length, resulting in excessive bending and premature deformation of the dust cover after multiple uses, which makes it inconvenient to stretch the dust cover for protection, and there are certain limitations. Utility Model Content

[0005] The utility model aims to provide a single-peak dust cover to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a single-peak dust cover, comprising:

[0007] A first cover body, wherein the top end of the first cover body is fixedly connected to a second cover body, and a fixing tube is arranged inside the second cover body;

[0008] A protection mechanism for increasing the swing angle position of the fixed tube is provided between the second cover body and the fixed tube, and the protection mechanism comprises:

[0009] A first wave peak portion, a second wave peak portion and a third wave peak portion, the second wave peak portion is located between the first wave peak portion and the third wave peak portion, and the first wave peak portion, the second wave peak portion and the third wave peak portion are arranged in a highly progressive manner, the second wave peak portion is connected to the second cover body through the first wave peak portion, and the second wave peak portion is connected to the fixed tube through the third wave peak portion, and the first wave peak portion, the second wave peak portion and the third wave peak portion are used to increase the swing angle between the fixed tube and the second cover body to reduce the extreme pulling of the dust cover.

[0010] Preferably, the side portion of the first wave crest portion is fixedly connected to the second cover body, the second wave crest portion is fixedly connected between the first wave crest portion and the third wave crest portion, and the side portion of the third wave crest portion is fixedly connected to the fixing pipe.

[0011] Preferably, a first bending groove is provided between the first wave peak portion and the second wave peak portion, a second bending groove is provided between the second wave peak portion and the third wave peak portion, and a third bending groove is provided between the third wave peak portion and the fixed tube, and the first bending groove, the second bending groove and the third bending groove are used to increase the swinging distance between the fixed tube and the second cover body.

[0012] Preferably, the top end of the fixed tube is fixedly connected to a connecting tube, the top end of the connecting tube is fixedly connected to an assembly ring, a first sealing cavity is provided inside the connecting tube, an assembly cavity is provided inside the assembly ring, and the assembly cavity and the interior of the first sealing cavity are connected to each other.

[0013] Preferably, a connecting cavity is provided inside the fixing tube, a protecting cavity is provided inside the second cover body, and the inside of the connecting cavity is communicated with the inside of the protecting cavity.

[0014] Preferably, a mounting cavity is provided inside the first cover body, and a second sealing cavity is opened inside the mounting cavity.

[0015] Technical effects and advantages of the utility model:

[0016] The utility model utilizes the mutual cooperation of the first wave peak portion, the second wave peak portion, the third wave peak portion, the first bending groove, the second bending groove and the third bending groove, and the first wave peak portion, the second wave peak portion and the third wave peak portion connect the fixed tube and the second cover body. The first wave peak portion, the second wave peak portion and the third wave peak portion increase the swing angle between the fixed tube and the second cover body, increase the stretching degree of the fixed tube and the second cover body, and thus facilitate to reduce the extreme pulling of the dust cover, so as to increase the service life of the dust cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 It is a schematic diagram of the front structure of the utility model.

[0019] Figure 3 It is a front cross-sectional structural schematic diagram of the second wave crest of the utility model.

[0020] In the figure: 1. first cover body; 2. second cover body; 3. fixing tube; 4. connecting tube; 5. protection mechanism; 51. first wave crest; 52. second wave crest; 53. second bending groove; 54. third wave crest; 55. third bending groove; 56. first bending groove; 6. assembly ring; 7. assembly cavity; 8. first sealing cavity; 9. connecting cavity; 10. protection cavity; 11. installation cavity; 12. second sealing cavity. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] The utility model provides Figure 1-3 A single-peak dust cover shown includes a first cover body 1, and the top of the first cover body 1 is fixedly connected to a second cover body 2. The first cover body 1 and the second cover body 2 are conducive to being socketed with automobile parts, thereby providing dust protection for the automobile parts. A fixing tube 3 is arranged inside the second cover body 2, which is conducive to being interlaced with automobile parts, thereby facilitating the positioning and installation of the dust cover.

[0023] Furthermore, a protective mechanism 5 for increasing the swing angle position of the fixed tube 3 is provided between the second cover body 2 and the fixed tube 3, and the protective mechanism 5 includes a first wave peak portion 51, a second wave peak portion 52 and a third wave peak portion 54, and the first wave peak portion 51, the second wave peak portion 52 and the third wave peak portion 54 are conducive to connecting the fixed tube 3 and the second cover body 2, and the first wave peak portion 51, the second wave peak portion 52 and the third wave peak portion 54 are convenient for increasing the swing angle between the fixed tube 3 and the second cover body 2, and increasing the stretching degree between the fixed tube 3 and the second cover body 2, thereby facilitating to slow down the extreme pulling of the dust cover to increase the service life of the dust cover, and the second wave peak portion 52 is located between the first wave peak portion 51 and The first wave peak portion 51, the second wave peak portion 52 and the third wave peak portion 54 are arranged in a highly progressive manner, the second wave peak portion 52 is connected to the second cover body 2 through the first wave peak portion 51, and the second wave peak portion 52 is connected to the fixed tube 3 through the third wave peak portion 54. The first wave peak portion 51, the second wave peak portion 52 and the third wave peak portion 54 are used to increase the swing angle between the fixed tube 3 and the second cover body 2 to reduce the extreme pulling of the dust cover, the side of the first wave peak portion 51 is fixedly connected to the second cover body 2, the second wave peak portion 52 is fixedly connected between the first wave peak portion 51 and the third wave peak portion 54, and the side of the third wave peak portion 54 is fixedly connected to the fixed tube 3.

[0024] Specifically, a first bending groove 56 is provided between the first wave crest portion 51 and the second wave crest portion 52, a second bending groove 53 is provided between the second wave crest portion 52 and the third wave crest portion 54, and a third bending groove 55 is provided between the third wave crest portion 54 and the fixed tube 3. The first bending groove 56, the second bending groove 53 and the third bending groove 55 are used to increase the swing distance between the fixed tube 3 and the second cover body 2, so as to reduce the pulling distance between the fixed tube 3 and the second cover body 2, so as to provide extreme pulling protection for the dust cover. The top end of the fixed tube 3 is fixedly connected with a connecting tube 4, which is conducive to connecting with an external locking member, so as to facilitate installation and fixing of the dust cover. The top end of the connecting tube 4 is fixedly connected with an assembly ring 6, which is conducive to connection with the external locking member. The designated positions are connected to each other for the convenience of installing the dust cover. A first sealing cavity 8 is provided inside the connecting pipe 4. The first sealing cavity 8 and the second sealing cavity 12 are conducive to the installation of the sealing ring, which is conducive to increasing the sealing between the dust cover and the automobile parts, and is convenient for dustproof protection of the automobile parts. An assembly cavity 7 is provided inside the assembly ring 6. The interiors of the assembly cavity 7 and the first sealing cavity 8 are interconnected. A connecting cavity 9 is provided inside the fixing tube 3. A protective cavity 10 is provided inside the second cover body 2, which is conducive to shielding and protecting automobile parts. The interior of the connecting cavity 9 is interconnected with the interior of the protective cavity 10. An installation cavity 11 is provided inside the first cover body 1, and a second sealing cavity 12 is opened inside the installation cavity 11.

[0025] 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 substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A single-peak dust cover, comprising: A first cover body (1), the top end of the first cover body (1) being fixedly connected to a second cover body (2), and a fixing tube (3) being arranged inside the second cover body (2); The invention is characterized in that a protection mechanism (5) for increasing the swing angle position of the fixed tube (3) is provided between the second cover body (2) and the fixed tube (3), and the protection mechanism (5) comprises: A first wave crest portion (51), a second wave crest portion (52) and a third wave crest portion (54), wherein the second wave crest portion (52) is located between the first wave crest portion (51) and the third wave crest portion (54), and the first wave crest portion (51), the second wave crest portion (52) and the third wave crest portion (54) are arranged in a progressively height-advanced manner, the second wave crest portion (52) is connected to the second cover body (2) via the first wave crest portion (51), and the second wave crest portion (52) is connected to the fixed tube (3) via the third wave crest portion (54), and the first wave crest portion (51), the second wave crest portion (52) and the third wave crest portion (54) are used to increase the swing angle between the fixed tube (3) and the second cover body (2) to reduce the extreme pulling of the dust cover.

2. A single-peak dust cover according to claim 1, characterized in that: The side portion of the first wave crest portion (51) is fixedly connected to the second cover body (2), the second wave crest portion (52) is fixedly connected between the first wave crest portion (51) and the third wave crest portion (54), and the side portion of the third wave crest portion (54) is fixedly connected to the fixed tube (3).

3. A single-peak dust cover according to claim 1, characterized in that: A first bending groove (56) is provided between the first wave peak portion (51) and the second wave peak portion (52), a second bending groove (53) is provided between the second wave peak portion (52) and the third wave peak portion (54), and a third bending groove (55) is provided between the third wave peak portion (54) and the fixed tube (3). The first bending groove (56), the second bending groove (53) and the third bending groove (55) are used to increase the swinging distance between the fixed tube (3) and the second cover body (2).

4. The single-peak dust cover according to claim 1, characterized in that: The top end of the fixed tube (3) is fixedly connected to a connecting tube (4), the top end of the connecting tube (4) is fixedly connected to an assembly ring (6), a first sealing cavity (8) is provided inside the connecting tube (4), an assembly cavity (7) is provided inside the assembly ring (6), and the interiors of the assembly cavity (7) and the first sealing cavity (8) are interconnected.

5. The single-peak dust cover according to claim 1, characterized in that: A connecting cavity (9) is provided inside the fixing tube (3), a protecting cavity (10) is provided inside the second cover body (2), and the interior of the connecting cavity (9) and the interior of the protecting cavity (10) are in communication with each other.

6. The single-peak dust cover according to claim 1, characterized in that: An installation cavity (11) is provided inside the first cover body (1), and a second sealing cavity (12) is opened inside the installation cavity (11).

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