Dustproof device and connecting rod assembly

Abstract

The present application discloses a dustproof device and a connecting rod assembly, which includes a first clamping part, a second clamping part, a ball pin, a dust cover and a ball shell, wherein the ball pin includes a sphere and a pin rod, wherein the sphere is fixed on one end of the pin rod, wherein the sphere is installed in the ball shell, wherein the dust cover has a first end and a second end, wherein the first end is sleeved on the pin rod and fixed by the first clamping part, wherein the second end is sleeved on the ball shell and fixed by the second clamping part, wherein the pin rod blocks the first end. The present application can not only realize multi-layer sealing of the dust cover, improve the sealing effect, prevent muddy water from entering the dust cover to produce abnormal noise and oil leakage caused by poor sealing of the dust cover, and improve the riding experience of users, but also does not need to add additional parts, and can be realized by simply changing the local structure, thereby saving costs and simplifying the process, while having a simple structure and convenient assembly.

Description

Technical Field

[0001] The present application relates to the field of automobile technology, and in particular to a dustproof device and a connecting rod assembly. Background Art

[0002] The connecting rod dust cover is a sub-part of the connecting rod assembly, which is mainly used to prevent mud, dust, mud and water from entering the connecting rod ball shell, avoiding the resulting failure or abnormal noise of the connecting rod assembly.

[0003] At present, the connecting rod dust cover is directly mounted on the connecting rod assembly. After a period of use, the holding force of the connecting rod dust cover decreases, causing the connecting rod dust cover to loosen, the sealing effect to decrease, the dustproof effect to weaken, mud and water to invade the dust cover, and abnormal noises to occur easily. The riding experience needs to be further improved. Summary of the invention

[0004] In view of this, the present application proposes a dustproof device and a connecting rod assembly to solve the above technical problems.

[0005] The present application proposes a dustproof device, which includes: a first clamping part, a second clamping part, a ball pin, a dust cover and a ball shell, the ball pin includes a sphere and a pin rod, the sphere is fixed on one end of the pin rod, the sphere is installed in the ball shell, the dust cover has a first end and a second end, the first end is sleeved on the pin rod and fixed by the first clamping part, the second end is sleeved on the ball shell and fixed by the second clamping part, the pin rod blocks the first end, which can not only realize multi-layer sealing of the dust cover and improve the sealing effect, avoid mud and water from entering the dust cover to produce abnormal noise and oil leakage caused by poor sealing of the dust cover, improve the user's riding experience, but also do not need to add components, only need to change the local structure to achieve cost saving and simplify the process, at the same time, the structure is simple and easy to assemble.

[0006] Optionally, a first protrusion is provided on the circumferential side wall of the pin rod, and a first groove is provided on the circumferential inner wall of the first end. The first protrusion is plugged into the first groove, which can not only increase the installation firmness of the dust cover, but also further improve the sealing performance.

[0007] Optionally, the groove wall of the first groove close to the second end is interference fit with the pin rod, so that the pin rod can better seal the first end of the dust cover and better improve the sealing effect.

[0008] Optionally, the circumferential inner wall of the first end of the dust cover extends in a direction away from the second end to form a first sleeve, the inner diameter of the first sleeve is equal to the inner diameter of the first end, and a second groove is provided on the circumferential side wall of the pin rod, the first sleeve is plugged into the second groove, and the first clamping portion is sleeved on the first sleeve and located in the second groove, which can further avoid relative displacement between the dust cover and the ball pin, thereby ensuring the installation firmness and sealing of the first end of the dust cover.

[0009] Optionally, the circumferential edge of the first sleeve away from the second end is folded outward to form a first flange, and the first flange and the end face of the first sleeve and the first end form a third groove, and the third groove is inserted into the second groove. The first clamping part is located in the third groove, which can limit the dust cover and the first clamping part to avoid relative movement between the dust cover, the first clamping part and the ball pin, thereby ensuring the installation firmness and sealing of the first end of the dust cover.

[0010] Optionally, the circumferential inner wall of the second end of the dust cover extends in a direction away from the first end to form a second sleeve, the outer diameter of the second sleeve is equal to the inner diameter of the second end, a fourth groove is provided on the circumferential outer wall of the spherical shell, the second sleeve is inserted into the fourth groove, and the second clamping portion is sleeved on the second sleeve and located in the fourth groove, which can prevent the dust cover and the spherical shell from relative movement and ensure the sealing of the dust cover.

[0011] Optionally, the circumferential edge of the second sleeve away from the first end is folded outward to form a second flange, and the second flange, the end surface of the second end, and the second sleeve form a fifth groove, the fifth groove is inserted into the fourth groove, and the second clamping portion is located in the fifth groove. By providing the fifth groove, the dust cover and the first clamping portion can be limited to avoid relative movement between the dust cover, the first clamping portion and the ball pin, thereby ensuring the installation firmness and sealing of the second end of the dust cover.

[0012] Optionally, both the first clamping portion and the second clamping portion are clamping springs, which are not only easy to install but also low in cost.

[0013] Optionally, it also includes a spherical cover and a cover plate, the cover plate includes a main body, the main body is provided with a second protrusion, the spherical shell is provided with a first mounting port and a second mounting port, the first mounting port and the second mounting port are arranged opposite to each other, the ball of the ball pin is pressed into the spherical cover, the spherical cover is installed in the spherical shell through the first mounting port, a sixth groove is provided on the inner wall of the second mounting port, the main body is plugged into the sixth groove, and the second protrusion blocks the second mounting port, which can not only protect the ball of the ball pin, but also further ensure the sealing of the spherical shell.

[0014] The present application also provides a connecting rod assembly, which includes a connecting rod and the dustproof device as described above. The connecting rod is fixed on the ball shell, which can not only realize multi-layer sealing of the dust cover and improve the sealing effect, but also prevent mud and water from entering the dust cover to produce abnormal noise and oil leakage caused by poor sealing of the dust cover, thereby improving the user's riding experience, but also does not require additional parts. It can be achieved by simply changing the local structure, which can save costs and simplify the process. At the same time, the structure is simple and easy to assemble.

[0015] The dustproof device and connecting rod assembly provided by the present application are provided with a ball pin, a dust cover, a ball shell, a first clamping part and a second clamping part. The first end of the dust cover is blocked by the pin rod of the ball pin and fixed by the first clamping part, and the second end of the dust cover is sleeved on the ball shell and fixed by the second clamping part. This can not only achieve multi-layer sealing of the dust cover and improve the sealing effect, but also prevent mud and water from entering the dust cover to produce abnormal noise and oil leakage caused by poor sealing of the dust cover, thereby improving the user's riding experience, but also does not require additional parts, and can be achieved by simply changing the local structure, which can save costs and simplify the process. At the same time, the structure is simple and easy to assemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view of the dustproof device of the present application.

[0017] Figure 2 It is a cross-sectional view of the dustproof device of the present application.

[0018] Figure 3 This application Figure 2 A is an enlarged view of the middle image.

[0019] Figure 4 This application Figure 3 Enlarged view of B. DETAILED DESCRIPTION

[0020] The technical solution of the present application is described in detail below in conjunction with the accompanying drawings and specific embodiments. The same components are represented by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0021] Figure 1 The front view of the dustproof device of the present application is shown. Figure 2 2 shows a cross-sectional view of the dustproof device of the present application. Figure 1-2 As shown, the dustproof device provided in the present application includes: a first clamping portion 6, a second clamping portion 7, a ball pin 1, a dust cover 3 and a ball shell 5.

[0022] The ball pin 1 comprises a sphere and a pin rod. The sphere is fixed on one end of the pin rod, and the axis of the pin rod passes through the center of the sphere.

[0023] The sphere is installed in the spherical shell 5, and the dust cover 3 has a first end and a second end, and the second end and the first end can be arranged opposite to each other.

[0024] The first end is sleeved on the pin rod and fixed by the first clamping portion 6. The pin rod blocks the first end. The second end is sleeved on the ball shell 5 and fixed by the second clamping portion.

[0025] When installing the dustproof device, first install the ball of the ball pin 1 into the ball shell 5, and then the second end and the first end of the dust cover 3 pass through the ball pin 1 in sequence. The first end is sleeved on the pin rod of the ball pin 1, and the second end is sleeved on the ball shell 5. Then, grease is injected into the dust cover 3.

[0026] Finally, the first end is fixed to the pin rod by the first clamping portion 6 , and the second end is fixed to the ball shell 5 by the second clamping portion 7 .

[0027] The dustproof device provided by the present application is provided with a ball pin, a dust cover, a ball shell, a first clamping part and a second clamping part. The first end of the dust cover is blocked by the pin rod of the ball pin and fixed by the first clamping part, and the second end of the dust cover is sleeved on the ball shell and fixed by the second clamping part. This not only can realize multi-layer sealing of the dust cover and improve the sealing effect, but also prevent mud and water from entering the dust cover to produce abnormal noise and oil leakage caused by poor sealing of the dust cover, thereby improving the user's riding experience, but also does not require additional parts, and can be achieved by simply changing the local structure, which can save costs and simplify the process. At the same time, the structure is simple and easy to assemble.

[0028] Furthermore, if Figure 2-3 As shown, a first protrusion is provided on the circumferential side wall of the pin rod, and a first groove 31 is provided on the inner wall of the first end. The first protrusion is plugged into the first groove 31, which can not only increase the installation firmness of the dust cover 3, but also further improve the sealing performance.

[0029] Preferably, if Figure 4 As shown, the groove wall 36 of the first groove 31 close to the second end is interference fit with the pin rod, so that the pin rod can better block the first end of the dust cover 3 and better improve the sealing effect.

[0030] Preferably, the circumferential inner wall of the first end extends in a direction away from the second end to form a first sleeve 33, and the inner diameter of the first sleeve 33 is equal to the inner diameter of the first end.

[0031] A second groove is provided on the circumferential side wall of the pin rod, and the first sleeve 33 is inserted into the second groove.

[0032] The first clamping portion 6 is sleeved on the first sleeve 33 and is located in the third groove, which can further avoid relative displacement between the dust cover 3 and the ball pin 1 and ensure the installation firmness and sealing of the first end of the dust cover 3.

[0033] Furthermore, the circumferential edge of the first sleeve 33 away from the second end is folded outward to form a first flange, and the first flange and the end surface of the first sleeve and the first end form a third groove, and the third groove is inserted into the second groove, and the first clamping portion 6 is located in the third groove.

[0034] By setting a third groove, the third groove is inserted into the second groove, and the first clamping part 6 is clamped in the third groove, the dust cover 3 and the first clamping part 6 can be limited to avoid relative movement between the dust cover 3, the first clamping part 6 and the ball pin 1, thereby ensuring the installation firmness and sealing of the first end of the dust cover 3.

[0035] Alternatively, if Figure 3 As shown, the circumferential inner wall of the second end extends in a direction away from the first end to form a second sleeve 34, and the outer diameter of the second sleeve 34 is equal to the inner diameter of the second end.

[0036] A fourth groove is provided on the circumferential outer side wall of the ball shell 5. The second sleeve 34 is inserted into the fourth groove, and the second clamping portion 7 is sleeved on the second sleeve and located in the fourth groove.

[0037] By arranging the second sleeve 34 on the second end of the dust cover 3 and inserting the second sleeve 34 into the fourth groove, the dust cover 3 and the ball shell 5 can be prevented from relative movement, thereby ensuring the sealing of the dust cover 3.

[0038] Furthermore, the circumferential edge of the second sleeve 34 away from the first end is folded outward to form a second flange, and the second flange and the end surface of the second sleeve and the second end form a fifth groove 35, the fifth groove 35 is inserted into the fourth groove, and the second clamping portion 7 is located in the fifth groove 35.

[0039] By providing the fifth groove 35 , the dust cover 3 and the first clamping portion 6 can be limited to avoid relative movement among the dust cover 3 , the first clamping portion 6 and the ball pin 1 , thereby ensuring the installation firmness and sealing of the second end of the dust cover 3 .

[0040] In a specific example, the first clamping portion 6 and the second clamping portion 7 are both clamping springs, which are not only easy to install but also low in cost.

[0041] In a specific embodiment, the dustproof device further comprises a spherical cover 8 , the ball of the ball pin 1 is press-fitted into the spherical cover 8 , and the spherical cover 8 is installed in the spherical shell 5 to protect the ball of the ball pin 1 .

[0042] Furthermore, the dustproof device further comprises a cover plate 9, wherein the cover plate 9 comprises a body, and a second protrusion is arranged on the body, such as Figure 3 As shown, the second protrusion is in the shape of a cylinder.

[0043] The first mounting opening and the second mounting opening are respectively provided on two opposite side walls of the spherical shell 5. The spherical cover 8 is installed in the spherical shell 5 through the first mounting opening. A sixth groove is provided on the inner wall of the second mounting opening. The main body is plugged into the sixth groove. The second protrusion blocks the second mounting opening to further ensure the sealing inside the spherical shell 5.

[0044] In this embodiment, the cover plate 9 is installed in the second installation opening by using a riveting process to ensure that the cover plate 9 is installed firmly.

[0045] The present application also provides a connecting rod assembly, which includes a connecting rod 4 and the dustproof device as described above, wherein the connecting rod 4 is fixed on the ball shell 5.

[0046] In this embodiment, the connecting rod 4 is welded to the spherical shell 5. After the dustproof device is assembled, the connecting rod 4 is welded to the spherical shell 5.

[0047] The connecting rod assembly provided by the present application is provided with a ball pin, a dust cover, a ball shell, a first clamping part and a second clamping part. The first end of the dust cover is blocked by the pin rod of the ball pin and fixed by the first clamping part, and the second end of the dust cover is sleeved on the ball shell and fixed by the second clamping part. This can not only achieve multi-layer sealing of the dust cover and improve the sealing effect, but also prevent mud and water from entering the dust cover to produce abnormal noise and oil leakage caused by poor sealing of the dust cover, thereby improving the user's riding experience, but also does not require additional parts, and can be achieved by simply changing the local structure, which can save costs and simplify the process. At the same time, the structure is simple and easy to assemble.

[0048] The technical solution of the present application is described in detail above in combination with specific embodiments, and the described specific embodiments are used to help understand the concept of the present application. Derivations and modifications made by those skilled in the art based on the specific embodiments of the present application also fall within the scope of protection of the present application.

Claims

1. A dustproof device, characterized in that: include: A first clamping portion, a second clamping portion, a ball pin, a dust cover and a ball shell, wherein the ball pin comprises a sphere and a pin rod, wherein the sphere is fixed to one end of the pin rod, and the sphere is installed in the ball shell, wherein the dust cover has a first end and a second end, wherein the first end is sleeved on the pin rod and fixed by the first clamping portion, and the second end is sleeved on the ball shell and fixed by the second clamping portion, and the pin rod blocks the first end; The circumferential inner wall of the first end of the dust cover extends in a direction away from the second end to form a first sleeve, the inner diameter of the first sleeve is equal to the inner diameter of the first end, the circumferential side wall of the pin rod is provided with a second groove, the first sleeve is plugged into the second groove, and the first clamping portion is sleeved on the first sleeve and located in the second groove; The circumferential edge of the first sleeve away from the second end is folded outward to form a first flange, the first flange and the end surface of the first sleeve and the first end form a third groove, the third groove is inserted into the second groove, and the first clamping portion is located in the third groove; The dustproof device also includes a spherical cover and a cover plate, the cover plate includes a main body, the main body is provided with a second protrusion, the spherical shell is provided with a first mounting port and a second mounting port, the first mounting port and the second mounting port are arranged opposite to each other, the ball of the ball pin is pressed into the spherical cover, the spherical cover is installed in the spherical shell through the first mounting port, a sixth groove is provided on the inner wall of the second mounting port, the main body is plugged into the sixth groove, the second protrusion blocks the second mounting port, and the second protrusion is in the shape of a cylinder.

2. The dustproof device according to claim 1, characterized in that: A first protrusion is arranged on the circumferential side wall of the pin rod, and a first groove is arranged on the circumferential inner wall of the first end, and the first protrusion is plugged into the first groove.

3. The dustproof device according to claim 2, characterized in that: The groove wall of the first groove close to the second end is interference fit with the pin rod.

4. The dustproof device according to claim 1, characterized in that The circumferential inner wall of the second end of the dust cover extends in a direction away from the first end to form a second sleeve, the outer diameter of the second sleeve is equal to the inner diameter of the second end, a fourth groove is provided on the circumferential outer wall of the spherical shell, the second sleeve is inserted into the fourth groove, and the second clamping portion is sleeved on the second sleeve and is located in the fourth groove.

5. The dustproof device according to claim 4, characterized in that The circumferential edge of the second sleeve away from the first end is folded outward to form a second flange, and the second flange and the end surface of the second end and the second sleeve form a fifth groove, the fifth groove is inserted into the fourth groove, and the second clamping portion is located in the fifth groove.

6. The dustproof device according to any one of claims 1 to 5, characterized in that , the first clamping portion and the second clamping portion are both clamping springs.

7. A connecting rod assembly, characterized in that: It comprises a connecting rod and a dustproof device as described in any one of claims 1 to 6, wherein the connecting rod is fixed on the spherical shell.

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