Tie rod ball head with adjustable ball wrist

Abstract

The utility model relates to the technical field of ball heads, and discloses a tie rod ball head with an adjustable ball wrist, which comprises a dust cover, the inner wall of the dust cover is rotatably connected with a ball wrist body, the middle part of the ball wrist body is fixedly connected with a telescopic rod, and the outer wall of the telescopic rod movably penetrates through the outer wall of the dust cover. Through the arrangement of the anti-falling plates and the arc plates, after the position of the telescopic rod is adjusted, the two-way screw is rotated, the arc plates drive the anti-falling plates to move in the direction close to each other, when the anti-falling plates are attached to the outer wall of the telescopic rod, the anti-falling plates and the arc plates extrude each other, and therefore the anti-falling plates can be fixed to the outer wall of the telescopic rod. The self-adaptive positioning function is achieved, locking and limiting of the telescopic rod are completed by tightening the two-way screw rod, the situation that the adjusting length of the pull rod body is changed when an automobile runs is effectively prevented, and it is ensured that the function of the pull rod ball head is normal.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of ball head, concretely is a pull rod ball head of adjustable ball wrist. BACKGROUND

[0002] In the prior art, the pull rod ball head has both fixed type and adjustable type, the structure and position of the fixed type pull rod ball head are relatively fixed and cannot be adjusted, while the adjustable type pull rod ball head allows adjustment within a certain range to adapt to different driving requirements and road conditions.

[0003] In the prior art, the installation and adjustment process of the adjustable type pull rod ball head is relatively complex and requires certain professional knowledge and skills, and if installed improperly, the performance may be affected, and even the driving safety is endangered, and accurate measurement and calculation are also required to adjust the length and angle of the pull rod ball head to ensure that the parameters meet the vehicle requirements, and in addition, the adjustable ball wrist pull rod ball head mainly adjusts the pressure of the spring on the ball wrist by rotating the end cover, thereby adjusting the matching force of the ball wrist and the pull rod ball head, which allows the pull rod ball head to adapt to different working conditions, maintain stable connection and transmit power, but cannot guarantee that the end cover can remain unchanged after being rotated to any position during vehicle operation, so invalid adjustment is prone to occur.

[0004] Therefore, the utility model provides a pull rod ball head with adjustable ball wrist. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a pull rod ball head with adjustable ball wrist to solve the problems in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical scheme: a pull rod ball head with adjustable ball wrist, including a dust cover, the inner wall of the dust cover is rotatably connected with a ball wrist body, the middle part of the ball wrist body is fixedly connected with a telescopic rod, the outer wall of the telescopic rod is movably penetrated through the outer wall of the dust cover, the outer wall of the telescopic rod is threadedly connected with a second nut, the side, away from the ball wrist body, of the second nut is rotatably connected with a pull rod body, the outer wall of the telescopic rod is movably sleeved on the inner wall of the pull rod body, the side, away from the pull rod body, of the second nut is slidably connected with a pair of arc plates, the side, mutually close, of a pair of the arc plates is slidably connected with a self-adapting limiting anti-drop plate, the inner wall of a pair of the anti-drop plates is all provided with a thread groove matched with the telescopic rod, and the anti-drop plates all are half-arc-shaped and abut on the outer wall of the telescopic rod.

[0007] Preferably, the second nut bottom is fixedly connected with a pair of fixed plates, the inner walls of the pair of fixed plates are jointly and rotatably connected with a bidirectional screw rod, and the bottom of the circular arc plate is symmetrically and threadedly connected to the outer walls of the two sides of the bidirectional screw rod.

[0008] Preferably, the outer wall of the dust cover is slidably connected with a U-shaped bottom plate, the inner surface of the bottom of the U-shaped bottom plate is fixedly connected with a magic tape fastener, the top of the magic tape fastener is attached with a nylon sheet, the top of the nylon sheet is fixedly connected with an end cap, the outer wall of the end cap is threadedly connected to the inner wall of the bottom of the dust cover, the top of the end cap is fixedly connected with an adjusting spring, and the end, away from the end cap, of the adjusting spring abuts against the outer wall of the ball wrist body.

[0009] Preferably, the bottom of the end cap and the nylon sheet is jointly and formed with a pair of rotating grooves, the top of the U-shaped bottom plate is vertically formed with long waist hole grooves on the two sides, the outer walls of the two sides of the dust cover are fixedly connected with bolts, and the outer walls of the bolts movably penetrate through the long waist hole grooves and abut against the outer wall of the U-shaped bottom plate.

[0010] Preferably, the distance between the pair of rotating grooves is greater than the width of the telescopic rod.

[0011] Preferably, the top of the dust cover is fixedly connected with a ball head seat, the top of the ball head seat is fixedly connected with a threaded rod, and the outer wall of the threaded rod is threadedly connected with a first nut.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] 1. By setting the anti-doffing plate and the circular arc plate, the position of the telescopic rod is adjusted, the bidirectional screw rod is rotated, the pair of circular arc plates drive the anti-doffing plate to move towards each other, when the anti-doffing plate abuts against the outer wall of the telescopic rod, the anti-doffing plate slides on the inner wall of the circular arc plate through mutual extrusion, until the hole groove in the anti-doffing plate is engaged with the telescopic rod, the self-adaptive positioning function is achieved, the telescopic rod is locked and positioned by tightening the bidirectional screw rod, the length of the telescopic rod body is prevented from changing when the automobile runs, and the function of the pull rod ball head is ensured to be normal.

[0014] 2. By setting the U-shaped bottom plate, the magic tape fastener and the nylon sheet, when the U-shaped bottom plate is buckled, the magic tape interacts to form a large resistance, the transverse torsional force of the end cap and the nylon sheet is effectively prevented, the relative position of the end cap and the U-shaped bottom plate is ensured to be unchanged, finally, the stability of the end cap is completed by the screw bolt reinforcement, in the process of normal driving of the automobile, the position of the end cap in any rotating position is ensured to be unchanged after rotation, and the stability of the connection is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure schematic view of the utility model;

[0016] Figure 2 Figure is a structure diagram of the connection of the nylon sheet of the utility model;

[0017] Figure 3 Figure is a structure diagram of the connection of the anti-drop plate of the utility model;

[0018] Figure 4 Figure is a structure diagram of the connection of the telescopic rod of the utility model;

[0019] Figure 5 Figure is a structure diagram of the connection of the U-shaped bottom plate of the utility model.

[0020] In the figure:

[0021] 1, dust cover; 2, ball head seat; 3, first nut; 4, threaded rod; 5, pull rod body; 6, second nut; 7, arc plate; 8, U-shaped bottom plate; 9, fixed plate; 10, bidirectional screw; 11, rotating groove; 12, nylon sheet; 13, end cap; 14, bolt; 15, anti-drop plate; 16, ball wrist body; 17, adjusting spring; 18, telescopic rod; 19, long waist hole groove; 20, magic tape buckle. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0023] Please refer to Figures 1 to 5 An embodiment provided by the utility model is as follows: a pull rod ball head with adjustable ball wrist, which comprises a dust cover 1, the inner wall of the dust cover 1 is rotationally connected with a ball wrist body 16, the middle part of the ball wrist body 16 is fixedly connected with a telescopic rod 18, the outer wall of the telescopic rod 18 is movably penetrated through the outer wall of the dust cover 1, the outer wall of the telescopic rod 18 is threadedly connected with a second nut 6, the side, away from the ball wrist body 16, of the second nut 6 is rotationally connected with a pull rod body 5, the outer wall of the telescopic rod 18 is movably sleeved on the inner wall of the pull rod body 5, the side, away from the pull rod body 5, of the second nut 6 is slidably connected with a pair of arc plates 7, the side, close to each other, of the pair of arc plates 7 is slidably connected with an anti-drop plate 15 for self-adapting limiting, the inner wall of the pair of anti-drop plates 15 is provided with a threaded groove matched with the telescopic rod 18, and the anti-drop plate 15 is in half-arc abutment with the outer wall of the telescopic rod 18;

[0024] The bottom of the second nut 6 is fixedly connected with a pair of fixed plates 9, the inner walls of the pair of fixed plates 9 are jointly and rotatably connected with a bidirectional screw rod 10, and the bottom of the circular-arc plate 7 is symmetrically and threadedly connected to the outer walls of the two sides of the bidirectional screw rod 10.

[0025] Wherein: the pair of circular-arc plates 7 drive the anti-escape plates 15 to move towards each other, when the anti-escape plates 15 are attached to the outer wall of the telescopic rod 18, the anti-escape plates 15 are slid on the inner wall of the circular-arc plate 7 through mutual extrusion, until the hole groove in the anti-escape plate 15 is engaged with the telescopic rod 18, having a self-adaptive positioning function, and the locking and positioning of the telescopic rod 18 are completed by tightening the bidirectional screw rod 10.

[0026] The outer wall of the dust cover 1 is slidably connected with a U-shaped bottom plate 8, the inner surface of the bottom of the U-shaped bottom plate 8 is fixedly connected with a magic tape buckle 20, the top of the magic tape buckle 20 is attached with a nylon sheet 12, the top of the nylon sheet 12 is fixedly connected with an end cap 13, the outer wall of the end cap 13 is threadedly connected to the inner wall of the bottom of the dust cover 1, the top of the end cap 13 is fixedly connected with an adjusting spring 17, and the end of the adjusting spring 17 away from the end cap 13 abuts against the outer wall of the ball wrist body 16.

[0027] The bottom of the end cap 13 and the nylon sheet 12 is jointly provided with a pair of rotating grooves 11, the top of the U-shaped bottom plate 8 is vertically provided with a long waist hole groove 19 on both sides, the outer walls of the two sides of the dust cover 1 are fixedly connected with bolts 14, and the outer walls of the bolts 14 movably penetrate through the long waist hole groove 19 and abut against the outer wall of the U-shaped bottom plate 8.

[0028] The distance between the pair of rotating grooves 11 is greater than the width of the telescopic rod 18.

[0029] The top of the dust cover 1 is fixedly connected with a ball head seat 2, the top of the ball head seat 2 is fixedly connected with a threaded rod 4, and the outer wall of the threaded rod 4 is threadedly connected with a first nut 3.

[0030] Wherein: the device connected to the end of the pull rod body 5 is provided in two groups, and is symmetrically located at the two ends of the pull rod body 5, a relatively large resistance is formed by the magic tape interaction, the transverse torsional force of the end cap 13 and the nylon sheet 12 can be effectively prevented, the relative position of the end cap 13 and the U-shaped bottom plate 8 is ensured to be unchanged, and finally the stability and positioning of the end cap 13 are completed by cooperating with the bolts 14.

[0031] The working principle of the above embodiment is as follows: according to the demand of the type of the automobile, the staff first rotates the bidirectional screw rod 10 to move the two circular arc plates 7 and the anti-off plates 15 away from each other, then rotates the second nut 6 to make the telescopic rod 18 extend out of the inner wall of the pull rod body 5, adjust to any length, then reversely rotate the bidirectional screw rod 10 to make the pair of circular arc plates 7 drive the anti-off plates 15 to move towards each other, when the anti-off plates 15 are attached to the outer wall of the telescopic rod 18, the anti-off plates 15 slide on the inner wall of the circular arc plate 7 through mutual extrusion, until the hole groove in the anti-off plate 15 is engaged with the telescopic rod 18, having a self-adaptive positioning function, and tightening the bidirectional screw rod 10 completes the locking and positioning of the telescopic rod 18, in addition, when the staff rotates the end cap 13 to adjust the adjusting spring 17 and the ball wrist body 16 to a suitable position, in order to keep the position after adjustment locked, the U-shaped bottom plate 8 can be moved upwards first to drive the magic tape buckle 20 and the nylon sheet 12 to be attached to each other, a larger resistance is formed through the mutual action of the magic tape, which can effectively prevent the transverse torsional force of the end cap 13 and the nylon sheet 12, and ensure that the relative position of the end cap 13 and the U-shaped bottom plate 8 does not change, then the bolt 14 at the top of the U-shaped bottom plate 8 is tightened to fix the U-shaped bottom plate 8 and the dust cover 1, thereby completing the stable positioning of the end cap 13, and ensuring that the end cap at any rotating position can keep the position unchanged after rotation, so that the vibration of the automobile during driving makes it difficult for the end cap 13 to be loosened.

[0032] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations 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 can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises... " does not, without more limitations, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the recited element.

[0033] Although the embodiments of the present application have been shown and described, it should be understood by those ordinary skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An adjustable ball joint head, comprising a dust cover (1), characterized in that, The inner wall of the dust cover (1) is rotatably connected to a ball joint body (16). A telescopic rod (18) is fixedly connected to the middle of the ball joint body (16). The outer wall of the telescopic rod (18) movably passes through the outer wall of the dust cover (1). A second nut (6) is threadedly connected to the outer wall of the telescopic rod (18). A pull rod body (5) is rotatably connected to the side of the second nut (6) away from the ball joint body (16). The outer wall of the telescopic rod (18) is movably sleeved on the inner wall of the pull rod body (5). A pair of arc plates (7) are slidably connected to the side of the second nut (6) away from the pull rod body (5). Anti-detachment plates (15) for adaptive limiting are slidably connected to the side of the pair of arc plates (7) that are close to each other. The inner walls of the pair of anti-detachment plates (15) are provided with threaded grooves that are adapted to the telescopic rod (18). The anti-detachment plates (15) are all in a semi-arc shape and abut against the outer wall of the telescopic rod (18).

2. The adjustable ball joint of the cue according to claim 1, characterized in that: The bottom of the second nut (6) is fixedly connected to a pair of fixing plates (9), and the inner walls of the pair of fixing plates (9) are rotatably connected to a bidirectional screw (10). The bottom of the arc plate (7) is symmetrically threaded to the outer walls of both sides of the bidirectional screw (10).

3. The adjustable ball joint of claim 1, characterized in that: The outer wall of the dust cover (1) is slidably connected to a U-shaped base plate (8). The bottom inner surface of the U-shaped base plate (8) is fixedly connected to a Velcro fastener (20). The top of the Velcro fastener (20) is attached to a nylon sheet (12). The top of the nylon sheet (12) is fixedly connected to an end cap (13). The outer wall of the end cap (13) is threadedly connected to the bottom inner wall of the dust cover (1). The top of the end cap (13) is fixedly connected to an adjusting spring (17). The end of the adjusting spring (17) away from the end cap (13) abuts against the outer wall of the ball-handling body (16).

4. The adjustable ball joint of claim 3, characterized in that: The end cap (13) and the bottom of the nylon sheet (12) are provided with a pair of rotating grooves (11). The top two sides of the U-shaped base plate (8) are provided with elongated slots (19). The outer walls of the dust cover (1) are fixedly connected with bolts (14). The outer walls of the bolts (14) can move through the elongated slots (19) and abut against the outer walls of the U-shaped base plate (8).

5. The adjustable ball joint of claim 4, characterized in that: The distance between the pair of rotating grooves (11) is greater than the width of the telescopic rod (18).

6. The adjustable ball joint of claim 5, characterized in that: The dust cover (1) is fixedly connected to a ball head seat (2) at the top, and a threaded rod (4) is fixedly connected to the top of the ball head seat (2). The outer wall of the threaded rod (4) is threadedly connected to a first nut (3).

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