CN218235823U

CN218235823U - Ball head pull rod transmission device

Info

Publication number: CN218235823U
Application number: CN202222103607.5U
Authority: CN
Inventors: 李云召; 李维清; 周跃起
Original assignee: Wuhu Guanlong Auto Parts Co ltd
Current assignee: Wuhu Guanlong Auto Parts Co ltd
Priority date: 2022-08-10
Filing date: 2022-08-10
Publication date: 2023-01-06
Anticipated expiration: 2032-08-10

Abstract

The utility model discloses a bulb pull rod transmission device, including ball round pin, pull rod and the spherical shell of setting in pull rod one end, the inboard of spherical shell is equipped with ball seat and bottom, and the bottom setting is in the bottom of ball seat, and the bottom side fixedly connected with limiting plate of spherical shell inner chamber, and the outside of ball seat and bottom has been seted up respectively and has been run through groove one and run through groove two, and spacing draw-in groove has been seted up to the bottom of bottom, and spacing draw-in groove and limiting plate block, the utility model relates to a bulb pull rod technical field. This bulb pull rod transmission device forms complete ball seat through hemisphere seat one and hemisphere seat two between to rotate the bottom, the spring leaf supports and presses the bottom, makes spacing draw-in groove and limiting plate block, and it is serious to have solved long-time use bulb department wearing and tearing of bulb pull rod, and it is troublesome to change, and difficult dismantlement's problem through setting up the bottom, and utilizes the spring leaf to make spacing draw-in groove and limiting plate block, and then realizes fixed function, and simple process is fixed firm, reduces the cost of bulb pull rod.

Description

Ball head pull rod transmission device

Technical Field

The utility model relates to a bulb pull rod technical field specifically is a bulb pull rod transmission device.

Background

After most bulb pull rods are used for a long time in the market, the bulb is seriously worn, is not easy to detach and is troublesome to replace.

Chinese utility model patent with publication number CN213768706U discloses a transmission device of bulb pull rod, and this patent is through the downside mounting fastener at the bulb shell, and is more firm when making first fixed block merge with the second fixed block to promoted the stability of bulb pull rod, installation face gear in the channel, face gear drive gear makes the motion of first fixed block below to one side with the pinion rack motion, thereby has promoted the suitability of bulb pull rod.

However, since the ball tie bar is a small part in an automobile, and in the above patent, a fastening member is provided in the ball tie bar, the fastening member must be elaborate, and the elaborate fastening member is difficult to process, which further increases the cost of the ball tie bar.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a bulb pull rod transmission device has solved the long-time back of using of most bulb pull rods in the market, and bulb department wearing and tearing are serious, and difficult dismantlement changes troublesome problem.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a ball head pull rod transmission device comprises a ball pin, a pull rod and a ball shell arranged at one end of the pull rod, wherein a ball seat and a bottom cover are arranged on the inner side of the ball shell, and the bottom cover is arranged at the bottom of the ball seat;

a limiting plate is fixedly connected to the bottom side of the inner cavity of the spherical shell;

the outer sides of the ball seat and the bottom cover are respectively provided with a first penetrating groove and a second penetrating groove;

the bottom of bottom has seted up spacing draw-in groove, and spacing draw-in groove and limiting plate block, the upper portion fixedly connected with multiunit spring leaf of bottom.

Preferably, the ball seat comprises a hemisphere seat I and a hemisphere seat II;

a pin hole is formed in one side of the half ball seat I, and a positioning pin bolt matched with the pin hole is fixedly connected to one side of the half ball seat II.

Preferably, the ball pin comprises a pin column and a pin ball, the bottom end of the pin column is of a conical structure, and the pin column and the pin ball are integrally manufactured.

Preferably, the inner side of the ball seat is provided with a ball cavity, and the pin ball is rotatably connected with the ball cavity.

Preferably, the upper part of the spherical shell is provided with a conical hole, and the pin penetrates through the conical hole.

Advantageous effects

The utility model provides a bulb pull rod transmission device. Compared with the prior art, the method has the following beneficial effects:

a complete ball seat is formed between the first half ball seat and the second half ball seat, and the spring piece abuts against the bottom cover by rotating the bottom cover, so that the limiting clamping groove is clamped with the limiting plate, and the problems that the ball head pull rod is seriously abraded, troublesome to replace and difficult to disassemble when the ball head pull rod is used for a long time are solved;

through the arrangement of the bottom cover and the clamping of the limiting clamping groove and the limiting plate by the spring piece, the fixing function is realized, the process is simple, the fixing is firm, and the cost of the ball head pull rod is reduced.

Drawings

FIG. 1 is a sectional view of the structure of the present invention;

fig. 2 is a top view of the bottom cover of the present invention;

figure 3 is the sectional view of the utility model discloses the structure of ball seat overlooks.

In the figure: 1. a ball pin; 11. a pin; 12. a pin ball; 2. a pull rod; 3. a spherical shell; 31. a conical bore; 32. a limiting plate; 4. a ball seat; 41. a half ball seat I; 411. a pin hole; 42. a half ball seat II; 421. positioning a pin bolt; 43. a ball cavity; 44. penetrating through the first groove; 5. a bottom cover; 51. penetrating through the second groove; 52. a limiting clamping groove; 53. a spring plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a ball head and pull rod transmission device comprises a ball pin 1, a pull rod 2 and a ball shell 3 arranged at one end of the pull rod 2, wherein a ball seat 4 and a bottom cover 5 are arranged on the inner side of the ball shell 3, the bottom cover 5 is arranged at the bottom of the ball seat 4, the ball seat 4 comprises a first semispherical seat 41 and a second semispherical seat 42, the ball seat 4 formed by combining the first semispherical seat 41 and the second semispherical seat 42 is of a cylinder structure, the ball seat 4 is in interference fit with the inner side of the ball shell 3, a pin hole 411 is formed in one side of the first semispherical seat 41, a positioning pin 421 matched with the pin hole 411 is fixedly connected to one side of the second semispherical seat 42, the pin hole 411 is matched with the positioning pin 421, the pin hole 411 is in interference fit connection with the positioning pin 421, the ball seat 4 formed by combining the first semispherical seat 41 and the second semispherical seat 42 is stable in structure, the ball pin 1 comprises a pin 11 and a pin 12, the bottom end of the pin 11 is of a cone structure, the pin 11 and the pin 12 are integrally formed, the inner side of the ball seat 4 is provided with a ball cavity 43, the pin ball 12 is rotatably connected with the ball cavity 43, the upper part of the ball shell 3 is provided with a conical hole 31, the pin 11 penetrates through the conical hole 31, the bottom side of the inner cavity of the ball shell 3 is fixedly connected with a limiting plate 32, the outer sides of the ball seat 4 and the bottom cover 5 are respectively provided with a first penetrating groove 44 and a second penetrating groove 51, the bottom of the bottom cover 5 is provided with a limiting clamping groove 52, the limiting clamping groove 52 is clamped with the limiting plate 32, the upper part of the bottom cover 5 is fixedly connected with a plurality of groups of spring pieces 53, a triangular structure is formed between the plurality of groups of spring pieces 53, the bottom cover 5 is arranged, the limiting clamping groove 52 is clamped with the limiting plate 44 by the spring pieces 53, so that the fixing function is realized, the process is simple and firm, the cost of the ball head pull rod is reduced, the complete ball seat 4 is formed between the first hemispherical seat 41 and the second hemispherical seat 42, the bottom cover 5 is rotated, the spring pieces 53 press the bottom cover 5, the limiting clamping groove 52 is clamped with the limiting plate 44, so that the problems that the bulb pull rod is seriously abraded and troublesome to replace and is not easy to detach when the bulb pull rod is used for a long time are solved.

And those not described in detail in this specification are well within the skill of those in the art.

When the ball socket is installed, the first half ball seat 41 and the second half ball seat 42 are firstly combined and placed on the outer side of the pin ball 12, the positioning pin 421 penetrates through the pin hole 411, the complete ball seat 4 is formed between the first half ball seat 41 and the second half ball seat 42, the ball seat 4 penetrates through the inner side of the conical hole 31, the first through groove 44 penetrates through the limiting plate 44 while the ball pin 1 penetrates through the conical hole 31, then the bottom cover 5 is placed on the inner side of the ball shell 3, the limiting plate 44 penetrates through the second through groove 51, the spring piece 53 is pressed against the ball seat 4, then the bottom cover 5 is rotated to enable the position of the position limiting clamping groove 52 to correspond to the position of the limiting plate 44, and after the bottom cover 5 is loosened, the spring piece 53 presses against the bottom cover 5 to enable the position limiting clamping groove 52 to be clamped with the limiting plate 44.

It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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 alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a bulb pull rod transmission device, includes ball round pin, pull rod and sets up the spherical shell in pull rod one end, its characterized in that: the ball seat and the bottom cover are arranged on the inner side of the ball shell, and the bottom cover is arranged at the bottom of the ball seat;

2. The ball-head draw bar transmission device according to claim 1, wherein: the ball seat comprises a hemisphere seat I and a hemisphere seat II;

3. The ball-head draw bar transmission device according to claim 1, wherein: the ball pin comprises a pin column and a pin ball, the bottom end of the pin column is of a conical structure, and the pin column and the pin ball are integrally manufactured.

4. The ball-head draw bar transmission device according to claim 3, wherein: the inner side of the ball seat is provided with a ball cavity, and the pin ball is rotatably connected with the ball cavity.

5. The ball-head draw bar transmission device according to claim 3, wherein: the upper part of the spherical shell is provided with a conical hole, and the pin column penetrates through the conical hole.