Durable ball pin

Abstract

The utility model belongs to the technical field of ball pins, and particularly relates to a durable ball pin which comprises a pin body and a shell, a ball head is arranged at one end of the pin body, the shell is connected with the ball head, and an oil injection hole is formed in the shell. The lining is arranged in the shell and located between the shell and the ball head matching surface, and the lining is provided with a through hole corresponding to the oil injection hole; the oil injection part is arranged on the oil injection hole, the oil injection part penetrates through the through hole to inject a lubricant into the matching surface between the outer shell and the lining, the oil injection part is externally connected with a hose, and the hose is always connected with an external oil tank; wherein a storage piece is arranged on the inner side wall surface of the lining, and the storage piece is matched with the ball head.

Description

Technical Field

[0001] This utility model belongs to the field of ball head pin technology, and particularly relates to a durable ball head pin. Background Technology

[0002] Generally, the tightening method of the ball joint is to pass the fastening bolt horizontally through the bolt groove formed on the outside of the ball head bolt, and insert the ball head bolt vertically into one side of the lower part of the ball head bolt. With the ball joint's socket fastened to one end of the control arm at the lower part, it engages with the ball formed at the end of the ball head bolt, connecting the steering knuckle and the lower control arm.

[0003] However, in the past, lubricants such as grease were injected between the ball joint and the socket. If foreign matter such as moisture or dust mixed into the lubricant, the lubrication performance would decrease, causing the ball joint to malfunction. Therefore, we have specially designed a ball head pin. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned technical problems by providing a durable ball joint pin, thereby improving its working performance.

[0005] In view of this, the present invention provides a durable ball head pin, comprising a pin body, one end of which is provided with a ball head, including:

[0006] The outer casing is connected to the ball head, and the outer casing is provided with an oil injection hole;

[0007] The bushing is located inside the housing and between the housing and the ball joint mating surface. The bushing has a through hole corresponding to the oil filling hole.

[0008] The lubrication component is located on the lubrication hole. The lubrication component passes through the through hole to inject lubricant into the mating surface between the outer shell and the bushing. The lubrication component is connected to a hose, which is always connected to an external oil tank.

[0009] The inner wall of the bushing is provided with a storage component, which cooperates with the ball head.

[0010] In the above technical solution, the storage component is an arc-shaped plate, and multiple oil storage tanks are provided on the inner wall of the storage component.

[0011] In the above technical solution, the outer casing further includes:

[0012] The housing has a through hole, one end of the housing is constricted and is set as the output end, and the other end has an internal thread on a section of the wall and is set as the connection end;

[0013] The end cap has a connecting protrusion on one side of its end face, and an external thread on the wall of the connecting protrusion, which connects with the internal thread on the connecting end. The other side of the end cap has a locking platform, which is hexagonal.

[0014] Among them, a circular boss is provided on the end face of the connecting protrusion, the circular boss extends to the inside of the through hole and abuts against the bushing;

[0015] The oil injection hole extends from the end face of the locking platform to the end face of the circular boss.

[0016] In the above technical solution, the bushing further includes:

[0017] The main body is spherical, and a spherical cavity is provided inside the main body. A connecting groove is provided on the inner wall of the spherical cavity.

[0018] The extension edge is located on the outer wall of the body at the ball cavity port, and extends to the outer peripheral surface of the housing at the output end;

[0019] The mating step is set on one end of the body extending into the through hole and fits with the end face of the connecting protrusion.

[0020] The arc-shaped plate is set in the connecting groove and is set on the body through the hole.

[0021] In the above technical solution, the lubrication component further includes:

[0022] A miniature valve is located on the oil injection port of the locking platform and is connected to a hose.

[0023] The sleeve is connected to the miniature valve and extends through the oil injection hole and through the orifice into the ball cavity;

[0024] A sealing sleeve is located on the outside of the sleeve and mates with the oil injection hole.

[0025] The ball head has a notch formed by milling at its front end, and after it fits into the ball cavity, the notch at the ball head forms a cavity inside the ball cavity, and the front end of the sleeve extends into the cavity.

[0026] Furthermore, the above technical solution also includes:

[0027] A sealing gasket is placed on the mating surface between the mating step and the circular boss.

[0028] In the above technical solution, the end face of the circular boss is arc-shaped and fits into the bushing.

[0029] In the above technical solution, the sealing gasket is further made of an elastic material.

[0030] The beneficial effects of this utility model are as follows: by setting a bushing, the wear generated between the pin and the outer shell during operation is reduced, thereby protecting the pin and the outer shell. At the same time, the lubrication component can continuously or intermittently input lubricating oil to the mating surface between the outer shell and the bushing through an external oil tank. In addition, a storage component is set inside the bushing to collect the lubricating oil, thereby reducing the cost of use. Attached Figure Description

[0031] Figure 1 This is a perspective view of the present invention;

[0032] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0033] The markings in the diagram are as follows: 10, pin; 101, ball head; 11, housing; 111, through hole; 112, output end; 113, connecting end; 12, end cap; 121, connecting protrusion; 1211, circular boss; 122, locking platform; 1221, oil injection hole; 21, body; 211, through hole; 212, ball cavity; 213, connecting groove; 22, extension edge; 23, mating step; 31, miniature valve; 32, sleeve; 33, sealing sleeve; 4, storage component; 41, oil reservoir; 5, sealing gasket; 6, arc groove; 7, hose; 8, bushing. Detailed Implementation

[0034] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0035] Example 1:

[0036] This embodiment provides a durable ball joint pin, including a pin body 10, one end of which is provided with a ball joint 101, including:

[0037] The outer casing has a ball head 101 connected to it, and an oil filling hole 1221 is provided on the outer casing.

[0038] Bushing 8 is disposed inside the housing and between the housing and the mating surface of the ball head 101. Bushing 8 is provided with a through hole 211 corresponding to the oil injection hole 1221.

[0039] The lubrication component is located on the lubrication hole 1221. The lubrication component passes through the through hole 211 to inject lubricant into the mating surface between the housing 11 and the bushing 8. The lubrication component is connected to a hose 7, which is always connected to an external oil tank.

[0040] Among them, a storage component 4 is provided on the inner wall of the bushing 8, and the storage component 4 cooperates with the ball head 101.

[0041] As can be seen from this embodiment, a durable ball joint pin includes a pin body 10, a housing, and a bushing 8;

[0042] The pin 10 is connected to the housing, and a bushing 8 is provided on the mating surface between the pin 10 and the housing 11;

[0043] Furthermore, the outer casing is provided with an oil injection hole 1221, and the bushing 8 is provided with a through hole 211 corresponding to the oil injection hole 1221. The oil injection component is connected to the oil injection hole 1221, and lubricating oil is injected into the mating surface between the outer casing 11 and the bushing 8 through the through hole 211. The oil injection component is always connected to an external oil tank, so that lubricating oil can be continuously or intermittently injected into the mating surface between the outer casing 11 and the bushing 8 for a long time, thereby improving the performance of the ball head 101 pin.

[0044] Furthermore, a storage component 4 is provided on the mating surface between the bushing 8 and the ball head 101 on the pin 10. The storage component 4 collects and discharges the lubricating oil injected into the mating surface between the housing 11 and the bushing 8.

[0045] By setting the bushing 8, the wear generated between the pin 10 and the housing 11 during operation is reduced, thereby protecting the pin 10 and the housing 11. At the same time, the lubrication component can continuously or intermittently supply lubricating oil to the mating surface between the housing 11 and the bushing 8 through the external oil tank. The bushing 8 is equipped with a storage component 4 to collect the lubricating oil, thereby reducing the cost of use.

[0046] Example 2:

[0047] This embodiment provides a durable ball joint pin, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0048] Storage component 4 is an arc-shaped plate, and multiple oil storage tanks 41 are provided on the inner wall of storage component 4.

[0049] As can be seen from this embodiment, the storage component 4 is a circumferential arc plate, and multiple oil storage grooves 41 are provided on the inner peripheral wall of the storage component 4 along its circumference.

[0050] After the lubricating oil is injected into the ball cavity 212, the oil storage tank 41 stores the injected lubricating oil in a throttling manner and inputs it into the ball cavity 212 during the operation of the ball head 101, thereby helping to reduce the cost of use.

[0051] Example 3:

[0052] This embodiment provides a durable ball joint pin, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0053] The housing includes:

[0054] The housing 11 has a through hole 111. One end of the housing 11 is constricted and is set as an output end 112. The other end has an internal thread on a section of the wall and is set as a connection end 113.

[0055] End cap 12, with a connecting protrusion 121 on one side end face, external threads on the wall of the connecting protrusion 121, which are connected to the internal threads on the connecting end 113, and a locking table 122 on the other side end face of the end cap 12, the locking table 122 being hexagonal;

[0056] Among them, a circular boss 1211 is provided on the end face of the connecting protrusion 121. The circular boss 1211 extends to the inside of the through hole 111 and abuts against the bushing 8.

[0057] The oil injection hole 1221 extends from the end face of the locking table 122 to the end face of the circular boss 1211.

[0058] As can be seen from this embodiment, the outer casing includes a housing 11 and an end cap 12;

[0059] The housing 11 has a through hole 111 formed inside. One end of the housing 11 is radially narrowed to form an output end 112, and an internal thread is formed on a section of the inner wall of the other end to form a connection end 113.

[0060] A connecting protrusion 121 is formed on one side of the end cap 12. An external thread is formed on the connecting protrusion 121. When the external thread and the internal thread are engaged, the end cap 12 is fixed to the connecting end 113 through the connecting protrusion 121. A hexagonal locking platform 122 is formed on the other side of the end cap 12. The hexagonal locking platform 122 makes it convenient to use a wrench to fix the end cap 12 to the connecting end 113.

[0061] Furthermore, a circular boss 1211 is formed on the end face of the connecting protrusion 121. The circular boss 1211 extends to the inside of the through hole 111 and abuts against the bushing 8, thereby providing a supporting effect.

[0062] In use, after the pin 10 and the bushing 8 are engaged, they are connected to the housing 11 through the connecting end 113 and extend to the outside through the output end 112. At the same time, the closing structure of the output end 112 will form a limit with the ball head 101. After the end cover 12 and the connecting end 113 are fixed, the circular boss 1211 will press the bushing 8 and the ball head 101 tightly against the closing at the output end 112, thereby achieving fixation.

[0063] The outer casing has a split structure, including a housing 11 and an end cap 12, which facilitates the assembly of the pin 10 for use.

[0064] Example 4:

[0065] This embodiment provides a durable ball joint pin, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0066] Bushing 8 includes:

[0067] The main body 21 is spherical and has a spherical cavity 212 inside. A connecting groove 213 is provided on the inner wall of the spherical cavity 212.

[0068] The extension edge 22 is provided on the outer wall of the body 21 at the port of the ball cavity 212, and the extension edge 22 extends to the outer peripheral surface of the housing 11 of the output end 112;

[0069] The mating step 23 is provided on one end of the body 21 extending into the inner side of the through hole 111 and is matched with the end face of the connecting protrusion 121.

[0070] The storage component 4 is disposed in the connecting groove 213 and is disposed on the body 21 through the hole 211.

[0071] As can be seen from this embodiment, the bushing 8 includes a body 21, an extended edge 22, and a mating step 23;

[0072] The body 21 is spherical, and a spherical cavity 212 is formed inside the spherical body 21 for assembling the ball head 101. Furthermore, a connecting groove 213 is provided on the inner wall of the spherical cavity 212 for assembling the lubricating component.

[0073] The extension edge 22 is formed on the outer wall of the body 21 at the port of the ball cavity 212. The outer wall of the extension edge 22 is arc-shaped. After the body 21 and the ball cavity 212 are engaged, the extension edge 22 is stuck to the front end of the port of the ball cavity 212. The arc surface of the extension edge 22 is tangent to the outer peripheral surface of the body 21.

[0074] The mating step 23 is formed on the outer peripheral surface of the body 21 connected to the through hole 111. By setting the mating step 23, a regular mating surface is formed between the circular bosses 1211 of the body 21, which can effectively eliminate the empty gaps and prevent the bushing 8 from swinging in the through hole 111, thus affecting the use effect.

[0075] Example 5:

[0076] This embodiment provides a durable ball joint pin, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0077] Lubrication components include:

[0078] Miniature valve 31 is disposed on the oil injection port 1221 on the locking table 122 and connected to the hose 7;

[0079] Sleeve 32 is connected to miniature valve 31 and extends through oil injection hole 1221 and through hole 211 into ball cavity 212;

[0080] The sealing sleeve 33 is located on the outside of the sleeve 32 and cooperates with the oil injection hole 1221.

[0081] The ball head 101 has a notch formed at its front end by milling, and after it is fitted with the ball cavity 212, the notch of the ball head 101 forms a cavity 9 in the ball cavity 212, and the front end of the sleeve 32 extends into the cavity 9.

[0082] As can be seen from this embodiment, the oil injection component includes a miniature valve 31, a sleeve 32, and a sealing sleeve 33;

[0083] The miniature valve 31 is installed on the port of the oil injection hole 1221. The outer end of the miniature valve 31 is connected to the hose 7, and the inner end of the miniature valve 31 is connected to the sleeve 32. The sleeve 32 extends through the oil injection hole 1221 and through the hole 211 into the ball cavity 212, and inputs lubricating oil between the mating surfaces of the bushing 8 and the ball head 101.

[0084] Furthermore, the ball head 101 has a notch milled at the front end, which fits inside the ball cavity 212 and forms a cavity 9 at the front end of the through hole 211 for placing the sleeve 32.

[0085] The sealing sleeve 33 is installed inside the oil injection hole 1221 and fits on the outer wall of the sleeve 32. By setting the sealing sleeve 33 to seal the mating surface of the sleeve 32 at the oil injection hole 1221, the leakage of lubricating oil can be prevented.

[0086] Example 6:

[0087] This embodiment provides a durable ball joint pin, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0088] Sealing gasket 5 is disposed on the mating surface between mating step 23 and circular boss 1211.

[0089] As can be seen from this embodiment, by providing a sealing gasket 5 on the mating surface between the mating step 23 and the circular boss 1211, leakage of lubricating oil from the mating surface between the end cap 12 and the housing 11 can be avoided.

[0090] Example 7:

[0091] This embodiment provides a durable ball joint pin, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0092] The end face of the circular boss 1211 is provided with an arc groove 6, which fits into the bushing 8.

[0093] As can be seen from this embodiment, by providing an arc groove 6 on the circular boss 1211, the circular boss 1211 can fit with the protruding part of the body 21 at the mating step 23, which helps to expand the mating surface and thus enhance the connection effect.

[0094] Example 8:

[0095] This embodiment provides a durable ball joint pin, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0096] The sealing gasket 5 is made of elastic material.

[0097] As can be seen from this embodiment, the sealing gasket 5 compensates for the gap between the mating part and the circular boss 1211 by deforming during the mating process between the mating step 23 and the circular boss 1211 through its own elasticity, thereby helping to improve the mating effect.

[0098] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A durable ball joint pin, comprising a pin body (10), wherein one end of the pin body (10) is provided with a ball joint (101), characterized in that, include: The outer casing, wherein the ball head (101) is connected to the outer casing, and the outer casing is provided with an oil injection hole (1221); The bushing is disposed inside the housing and between the housing and the mating surface of the ball head (101). The bushing is provided with a through hole (211) corresponding to the oil injection hole (1221). The lubricating component is provided on the lubrication hole (1221). The lubricating component passes through the through hole (211) to inject lubricant into the mating surface between the housing and the bushing. The lubricating component is connected to a hose (7), which is always connected to an external oil tank. The bushing has a storage component (4) on its inner wall surface, which cooperates with the ball head (101).

2. A durable ball joint pin according to claim 1, characterized in that, The storage component (4) is an arc-shaped plate, and multiple oil storage tanks (41) are provided on the inner wall surface of the storage component (4).

3. A durable ball joint pin according to claim 2, characterized in that the outer casing... include: The housing (11) has a through hole (111) and one end of the housing (11) is constricted and is set as an output end (112). The other end has an internal thread on a section of the wall and is set as a connection end (113). End cap (12), one side end face of the end cap (12) is provided with a connecting protrusion (121), the wall surface of the connecting protrusion (121) is provided with an external thread and is connected to the internal thread on the connecting end (113), the other side end face of the end cap (12) is provided with a locking platform (122), the locking platform (122) is hexagonal; The connecting protrusion (121) has a circular boss (1211) on its end face, which extends to the inside of the through hole (111) and abuts against the bushing. The oil injection hole (1221) extends from the end face of the locking platform (122) to the end face of the circular boss (1211).

4. A durable ball joint pin according to claim 3, characterized in that the bushing... include: The body (21) is spherical and has a spherical cavity (212) inside. A connecting groove (213) is provided on the inner wall of the spherical cavity (212). An extension edge (22) is provided on the outer wall of the body (21) at the port of the ball cavity (212), and the extension edge (22) extends to the outer peripheral surface of the housing (11) of the output end (112); The mating step (23) is provided on one end of the body (21) extending to the inside of the through hole (111) and is fitted with the end face of the connecting protrusion (121); The storage component (4) is disposed in the connecting groove (213), and the through hole (211) is disposed on the body (21).

5. A durable ball joint pin according to claim 4, characterized in that, Lubrication components include: A miniature valve (31) is provided on the oil injection port (1221) on the locking platform (122) and connected to the hose (7); Sleeve (32), which is connected to the micro valve (31) and extends through the oil injection hole (1221) and through the hole (211) into the ball cavity (212); A sealing sleeve (33) is provided on the outside of the sleeve (32) and cooperates with the oil injection hole (1221); The ball head (101) has a notch formed at its front end by milling, and after it is fitted with the ball cavity (212), the notch of the ball head (101) forms a cavity (9) in the ball cavity (212), and the front end of the sleeve (32) extends into the cavity (9).

6. A durable ball joint pin according to claim 5, characterized in that, it also... include: A sealing gasket (5) is disposed on the mating surface of the mating step (23) and the circular boss (1211).

7. A durable ball joint pin according to claim 6, characterized in that, The end face of the circular boss (1211) is arc-shaped and fits into the bushing.

8. A durable ball joint pin according to claim 7, characterized in that, The sealing gasket (5) is made of an elastic material.

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