Low-friction ball head dynamic sealing element for automobile

Abstract

The low-friction ball head dynamic sealing element for the automobile comprises a shell, the upper surface of the shell is in bolted connection with a cover plate, a ball body is arranged in the shell in a rotating mode, a connecting rod is fixedly installed on the upper surface of the ball body, a lower connecting rod is fixedly installed on the lower surface of the shell, and meanwhile a through hole is formed in the surface of the shell. The device further comprises a fixing block, the fixing block is fixedly installed on the outer wall of the shell, a connecting shaft is rotationally arranged in the fixing block, a blocking assembly is arranged on the surface of the connecting shaft, and when the blocking assembly works, the through hole can be blocked. According to the low-friction ball head dynamic sealing piece for the automobile, in the using process, a lubricant is added into the shell through the through hole, friction between the ball body and the inner wall of the shell is small when the ball body rotates, abrasion of the ball body is small, the service life of the whole device is long, the plug is located in the through hole at the beginning, the lubricant in the shell cannot flow out, and stability is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of ball head dynamic sealing parts, in particular to a low-friction ball head dynamic sealing part for automobiles. Background Art

[0002] The ball head dynamic seal can effectively prevent the leakage of the medium. It has the advantage of strong load-bearing capacity and is widely used in the fields of automobiles, aerospace, etc., such as a seal with the publication number CN203604659U, especially a steering ball head seal. It includes a rubber body, and the two ends of the steering ball head seal rubber body correspond to the large head part installed in the annular groove of the ball head seat and the small head part sleeved on the ball pin rod body, wherein the seal also includes a fixed support ring, and the fixed support ring is located in the small head part of the seal. The fixed support ring includes an axial support ring and an end face support ring. The axial support ring is arranged along the axial direction of the rod body, and the axial support ring and the end face support ring are vertically connected. It can avoid the separation from the rod body part of the ball pin when the ball pin swings to produce a deformation gap, thereby improving the sealing effect of the seal and extending the service life of the seal;

[0003] During use, the ball head will be gradually worn, and the device in the above application has average wear resistance during use, which makes the device more easily worn, resulting in a short service life of the entire device and poor economic benefits.

[0004] In view of the above problems, it is urgent to carry out innovative design based on the original ball head dynamic seal. Utility Model Content

[0005] The purpose of the utility model is to provide a low-friction ball head dynamic seal for automobiles, so as to solve the problem raised in the above background technology that during use, the wear resistance is average, which makes the device more easily worn, resulting in a short service life of the entire device and poor economic benefits.

[0006] To achieve the above object, the utility model provides the following technical solution: a low-friction ball head dynamic seal for automobiles, comprising a housing, the upper surface of the housing is bolted with a cover plate, a sphere is rotatably arranged inside the housing, a connecting rod is fixedly installed on the upper surface of the sphere, and a lower connecting rod is fixedly installed on the lower surface of the housing, and a through hole is opened on the surface of the housing;

[0007] A low-friction ball joint dynamic seal for an automobile, further comprising:

[0008] A fixed block, the fixed block is fixedly mounted on the outer wall of the housing, a connecting shaft is rotatably arranged inside the fixed block, and a blocking component is arranged on the surface of the connecting shaft, and when the blocking component is in operation, the through hole can be blocked;

[0009] The clamping assembly is arranged on the surface of the shell, and when the clamping assembly is working, the blocking assembly can be clamped and fixed.

[0010] Preferably, the blocking assembly comprises a pipe sleeve fixedly mounted on the surface of the connecting shaft, and a connecting plate is fixedly mounted on the surface of the pipe sleeve, and the connecting plates are symmetrically distributed about the center of the housing.

[0011] Preferably, the connecting plate and the shell are both arc-shaped structures, and a plug is fixedly installed on the surface of the connecting plate, and the plug corresponds to the through hole one by one, and the plug is a rubber structure. During use, lubricant is added to the inside of the shell through the through hole, and then when the ball rotates, the friction with the inner wall of the shell is small, so the ball wears less and the overall service life of the device is long. Initially, the plug is located inside the through hole, so that the lubricant inside the shell will not flow out, thereby ensuring stability.

[0012] Preferably, a card slot is provided on the upper surface of the connecting plate, and the locking assembly includes a card block inserted inside the card slot, and a long pin is fixedly installed at the end of the card block. Initially, the end of the card block is located inside the card slot, and the connecting plate and the shell are in a locked state, so that the connecting plate and the plug stably block the through hole.

[0013] Preferably, a limiting column is fixedly mounted on the inner wall of the shell, and the limiting column passes through the interior of the long pin, and a connecting spring that plays an elastic reset role is fixedly mounted on the upper surface of the long pin.

[0014] Preferably, the other side of the connecting spring is fixedly connected to the inner wall of the shell, and a long rod is fixedly installed on the surface of the fixed block. When the through hole needs to be opened, the long pin can be pulled upward to move the long pin in the direction of squeezing the connecting spring, and finally the end of the card block is moved out of the card slot. At this time, the connecting plate rotates under the action of its own gravity, and the long rod limits the rotation angle of the connecting plate, thereby improving stability.

[0015] Preferably, a ball is rotatably arranged inside the long pin, and the surface of the ball fits with the surface of the limiting column.

[0016] Compared with the prior art, the utility model has the following beneficial effects: the low-friction ball head dynamic seal for automobiles adopts a new structural design, and its specific contents are as follows:

[0017] (1) During use, the low-friction ball head dynamic seal for automobiles adds lubricant to the inside of the housing through the through hole, so that when the ball rotates, the friction with the inner wall of the housing is small, so the ball wears less and the service life of the device as a whole is long. Initially, the plug is located inside the through hole, so that the lubricant inside the housing does not flow out, thereby ensuring stability;

[0018] (2) When the through hole of the low-friction ball head dynamic seal for automobiles needs to be opened, the long pin can be pulled upward to move the long pin in the direction of squeezing the connecting spring, and finally the end of the card block is moved out of the card slot. At this time, the connecting plate rotates under the action of its own gravity, and the through hole is opened. At this time, the staff can add lubricating oil to the inside of the shell to facilitate subsequent use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the front view structure of the housing of the utility model;

[0020] Figure 2 This is a schematic diagram of the front cross-sectional structure of the housing of the utility model;

[0021] Figure 3 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0022] Figure 4 It is a partial front cross-sectional structural schematic diagram of the connection plate of the utility model in working state;

[0023] Figure 5 This is a schematic diagram of the structure of the distribution state of the fixed blocks of the utility model.

[0024] In the figure: 1. outer shell; 2. cover plate; 3. connecting rod; 4. lower connecting rod; 5. sphere; 6. fixing block; 7. connecting shaft; 8. pipe sleeve; 9. connecting plate; 10. limiting column; 11. long pin; 12. ball; 13. clamping block; 14. connecting spring; 15. clamping groove; 16. through hole; 17. plug; 18. long rod. DETAILED DESCRIPTION

[0025] 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.

[0026] See also Figure 1-Figure 5 The utility model provides a technical solution: a low-friction ball head dynamic seal for automobiles, comprising a housing 1, a cover plate 2 is bolted to the upper surface of the housing 1, a sphere 5 is rotatably arranged inside the housing 1, a connecting rod 3 is fixedly installed on the upper surface of the sphere 5, and a lower connecting rod 4 is fixedly installed on the lower surface of the housing 1, and a through hole 16 is opened on the surface of the housing 1;

[0027] A low-friction ball joint dynamic seal for an automobile, further comprising:

[0028] The fixing block 6 is fixedly mounted on the outer wall of the housing 1, and a connecting shaft 7 is rotatably arranged inside the fixing block 6, and a blocking component is arranged on the surface of the connecting shaft 7, and when the blocking component is working, the through hole 16 can be blocked;

[0029] A snap-fit ​​assembly is arranged on the surface of the shell 1. When the snap-fit ​​assembly is working, the blocking assembly can be snap-fitted and fixed. The blocking assembly includes a sleeve 8 fixedly installed on the surface of the connecting shaft 7, and a connecting plate 9 is fixedly installed on the surface of the sleeve 8, and the connecting plate 9 is symmetrically distributed about the center of the shell 1. The connecting plate 9 and the shell 1 are both arc-shaped structures, and a plug 17 is fixedly installed on the surface of the connecting plate 9, and the plug 17 corresponds to the through hole 16 one by one, and the plug 17 is a rubber structure.

[0030] During use, lubricant is added to the inside of the shell 1 through the through hole 16, so that when the ball 5 rotates, the friction with the inner wall of the shell 1 is small, so the ball 5 is less worn and the service life of the device as a whole is long. Initially, the plug 17 is located inside the through hole 16, so that the lubricant inside the shell 1 will not flow out, thereby ensuring stability.

[0031] A card slot 15 is provided on the upper surface of the connecting plate 9, and the card assembly includes a card block 13 inserted in the card slot 15, and a long pin 11 is fixedly installed at the end of the card block 13, a limiting column 10 is fixedly installed on the inner wall of the outer shell 1, and the limiting column 10 passes through the interior of the long pin 11, and a connecting spring 14 that plays an elastic reset role is fixedly installed on the upper surface of the long pin 11.

[0032] The other side of the connecting spring 14 is fixedly connected to the inner wall of the housing 1 , a long rod 18 is fixedly installed on the surface of the fixing block 6 , a ball 12 is rotatably arranged inside the long pin 11 , and the surface of the ball 12 fits with the surface of the limiting column 10 .

[0033] Initially, the block 13 is located inside the slot 15. At this time, the connecting plate 9 and the plug 17 can block the through hole 16 very well. When the through hole 16 needs to be opened, the long pin 11 can be pulled upward (the limit column 10 makes the long pin 11 move only in the vertical direction, and the ball 12 makes the long pin 11 move more smoothly), so that the long pin 11 moves in the direction of squeezing the connecting spring 14, and finally the end of the block 13 moves out of the slot 15. At this time, the connecting plate 9 rotates under the action of its own gravity, and then the through hole 16 is opened. At this time, the staff can add lubricating oil to the inside of the shell 1 for easy use later, and the long rod 18 limits the rotation angle of the connecting plate 9 and stability.

[0034] The above is the working process of the entire device, and the contents not described in detail in this specification belong to the existing technology known to professional and technical personnel in this field.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A low-friction ball head dynamic seal for automobiles, comprising a housing (1), the upper surface of the housing (1) being bolted to a cover plate (2), a sphere (5) being rotatably arranged inside the housing (1), a connecting rod (3) being fixedly mounted on the upper surface of the sphere (5), and a lower connecting rod (4) being fixedly mounted on the lower surface of the housing (1), and a through hole (16) being opened on the surface of the housing (1); It is characterized in that Also includes: A fixed block (6), the fixed block (6) being fixedly mounted on the outer wall of the housing (1), and a connecting shaft (7) being rotatably arranged inside the fixed block (6), and a blocking component being arranged on the surface of the connecting shaft (7), and when the blocking component is in operation, the through hole (16) can be blocked; The snap-fit ​​assembly is arranged on the surface of the housing (1), and when the snap-fit ​​assembly is in operation, the blocking assembly can be snap-fitted and fixed.

2. The low-friction ball head dynamic seal for automobiles according to claim 1, characterized in that: The plugging assembly comprises a pipe sleeve (8) fixedly mounted on the surface of the connecting shaft (7), and a connecting plate (9) is fixedly mounted on the surface of the pipe sleeve (8), and the connecting plates (9) are symmetrically distributed about the center of the housing (1).

3. The low-friction ball head dynamic seal for automobile according to claim 2, characterized in that: The connecting plate (9) and the housing (1) are both arc-shaped structures, and a plug (17) is fixedly mounted on the surface of the connecting plate (9), and the plug (17) corresponds to the through hole (16) one by one, and the plug (17) is a rubber structure.

4. The low-friction ball head dynamic seal for automobiles according to claim 2, characterized in that: The upper surface of the connecting plate (9) is provided with a card slot (15), and the card assembly comprises a card block (13) inserted into the card slot (15), and a long pin (11) is fixedly installed at the end of the card block (13).

5. The low-friction ball head dynamic seal for automobiles according to claim 4, characterized in that: A limiting column (10) is fixedly mounted on the inner wall of the housing (1), and the limiting column (10) passes through the interior of the long pin (11), and a connecting spring (14) having an elastic reset function is fixedly mounted on the upper surface of the long pin (11).

6. The low-friction ball head dynamic seal for automobiles according to claim 5, characterized in that: The other side of the connecting spring (14) is fixedly connected to the inner wall of the housing (1), and a long rod (18) is fixedly mounted on the surface of the fixing block (6).

7. The low-friction ball head dynamic seal for automobiles according to claim 6, characterized in that: A ball (12) is rotatably arranged inside the long pin (11), and the surface of the ball (12) is in contact with the surface of the limiting column (10).

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