Bidirectional telescopic locking pull rod assembly

Abstract

The utility model belongs to the technical field of automobile pull rods, and particularly relates to a bidirectional telescopic locking pull rod assembly which comprises a first rod body, a second rod body, a connecting rod, a locking ring and a locking nut. A first threaded hole is formed in one end of the first rod body, and a first clamping part is arranged at the end; a second threaded hole is formed in one end of the second rod body, and a second clamping part is arranged at the end; external threads are arranged on the surfaces of two ends of the connecting rod and are connected with the first threaded hole and the second threaded hole to realize bidirectional telescopic adjustment; the locking nut is rotated, the locking ring is pushed to move in the axial direction, the first clamping part and the second clamping part are promoted to be bent towards the axis side, and connection between the connecting rod and the first rod body and connection between the connecting rod and the second rod body are locked. Operation is convenient, and the adjusting convenience is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automobile pull rod, especially relates to a two -way telescopic locking pull rod assembly. BACKGROUND

[0002] The automobile pull rod is a key component in the automobile chassis system, and plays a crucial role in the driving performance and safety of the vehicle. It is usually composed of a rod body and connecting heads arranged at both ends of the rod body. The rod body is generally made of high-strength metal materials such as alloy steel or aluminum alloy to ensure that it will not deform or be damaged when subjected to various forces during vehicle driving. The connecting heads are used to connect with other components of the vehicle to realize force transmission and joint movement.

[0003] For example, Chinese patent application No. (2021208956057) discloses an automobile pull rod with a locking mechanism, which includes an adjusting rod with a through hole, the inner wall of the through hole is provided with symmetrical reverse threads, and the first and second movable rods are connected respectively, and the first and second connecting barrels are inserted, the first and second connecting barrels are fastened by the locking structure, but the locking structure adopts a through hole opened on the side of the connecting barrel, and the second bolt is locked, the locking is realized by adjusting the second bolt, the convenience is poor, and the second bolt is small in size, which is inconvenient to operate. UTILITY MODEL CONTENTS

[0004] The utility model aims at the above-mentioned technical problem, provides a kind of two -way telescopic locking's pull rod assembly, reached the effect that operation is simple, and adjustment convenience is high.

[0005] Therefore, the utility model provides a two-way telescopic locking pull rod assembly, which comprises:

[0006] The first rod body has a first threaded hole at one end, and a first clamping portion is arranged at the end portion;

[0007] The second rod body has a second threaded hole at one end, and a second clamping portion is arranged at the end portion;

[0008] The connecting rod has an outer thread on the surface, which is adapted to the first threaded hole and the second threaded hole;

[0009] The locking ring is sleeved on the first clamping portion and the second clamping portion, and is used to push the first clamping portion and the second clamping portion to bend towards the axis after moving axially;

[0010] The locking nut is threadedly connected to the connecting rod, and is used to push the locking ring to move axially.

[0011] In the above technical solution, further:

[0012] The first clamping part is provided with a first inclined surface on the surface away from the one end of the first rod body.

[0013] The second clamping part is provided with a second inclined surface on the surface away from the one end of the second rod body.

[0014] The locking ring is provided with a third inclined surface abutting against the first inclined surface and the second inclined surface.

[0015] In the above technical solution, further:

[0016] The connecting rod is provided with a leverage part in the middle section.

[0017] In the above technical solution, further:

[0018] The radial section of the leverage part is a regular hexagon.

[0019] In the above technical solution, further:

[0020] The locking nut is provided with a compensation gap between the first clamping part and the second clamping part.

[0021] In the above technical solution, further:

[0022] The first clamping part and the second clamping part are provided with internal threads adapted to external threads on the side close to the shaft center.

[0023] In the above technical solution, further:

[0024] The first clamping part and the second clamping part are provided with a plurality of internal threads adapted to external threads at equal intervals along the circumference, and the first clamping part and the second clamping part are provided with a plurality of grooves between every two adjacent first clamping parts and every two adjacent second clamping parts.

[0025] In the above technical solution, further:

[0026] The locking ring is provided with a protrusion adapted to the groove on the inner wall in the radial direction.

[0027] The utility model discloses the beneficial effects are:

[0028] 1. By opening the first threaded hole on the first rod body, opening the second threaded hole on the second rod body, and being connected through the connecting rod, the bidirectional telescopic adjustment of the pull rod is facilitated, and the first clamping part and the second clamping part are bent to the side of the shaft center by rotating the locking nut to drive the locking ring, so that the connecting rod, the first rod body and the second rod body are locked, and the operation is simple and the adjustment is convenient.

[0029] 2. The first slope, the second slope and the third slope are opened, which can increase the contact area when the locking ring abuts against the first clamping part and the second clamping part, thereby improving the stability of locking the first clamping part and the second clamping part, and further improving the locking effect between the connecting rod and the first rod body and the second rod body.

[0030] 3. The power-assisted part is arranged, and specifically, a radial section is in a regular hexagonal structure, so that the power-assisted part is convenient to assist by using a wrench, and in the case that the connecting rod is fixed, the locking nut can be rotated, the locking ring can be pushed to abut against the first clamping part and the second clamping part, the force is more convenient to apply, and the adjustment convenience is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is a structural schematic view of the utility model;

[0032] Figure 2 is a side view of the utility model;

[0033] Figure 3 is a sectional view of the utility model Figure 2 at A-A;

[0034] Figure 4 is an enlarged view of B in the utility model Figure 3 ; is an enlarged view of C in the utility model

[0035] Figure 5 is an exploded view of the utility model;

[0036] Figure 6 is an enlarged view of C in the utility model Figure 5 ; is an enlarged view of C in the utility model

[0037] The marks in the figure are as follows: 1, first rod body; 2, first threaded hole; 3, first clamping part; 30, first slope; 4, second rod body; 5, second threaded hole; 6, second clamping part; 60, second slope; 7, connecting rod; 8, locking ring; 9, locking nut; 10, third slope; 11, power-assisted part; 12, compensation gap; 13, groove; 14, protrusion. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art belong to the scope of protection of the present application.

[0039] Embodiment 1:

[0040] The embodiment provides a two-way telescopic locking drawbar assembly, which comprises:

[0041] The first rod body 1 has a first threaded hole 2 at one end and a first clamping portion 3 at the end;

[0042] The second rod body 4 has a second threaded hole 5 at one end and a second clamping portion 6 at the end;

[0043] The connecting rod 7 has external threads that are compatible with the first threaded hole 2 and the second threaded hole 5;

[0044] The locking ring 8 is sleeved on the first clamping portion 3 and the second clamping portion 6 and is used to push the first clamping portion 3 and the second clamping portion 6 to bend towards the axis after moving axially;

[0045] The locking nut 9 is threadedly connected to the connecting rod 7 and is used to push the locking ring 8 to move axially;

[0046] The first clamping portion 3 and the first rod body 1 and the second clamping portion 6 and the second rod body 4 are in an integrated structure.

[0047] As can be seen from the embodiment, the first threaded hole 2 is formed on the first rod body 1, the second threaded hole 5 is formed on the second rod body 4, and the connecting rod 7 is used for threaded connection, so that the pull rod can be adjusted in both directions, and the locking nut 9 is rotated to drive the locking ring 8 to bend the first clamping portion 3 and the second clamping portion 6 towards the axis, thereby locking the connecting rod 7, the first rod body 1 and the second rod body 4, which is simple to operate and convenient to adjust.

[0048] Embodiment 2:

[0049] The embodiment provides a two-way telescopic locking pull rod assembly, in addition to the technical solutions of the above-mentioned embodiments, further comprising the following technical features:

[0050] The first clamping portion 3 has a first inclined surface 30 on the surface away from the first end of the first rod body 1;

[0051] The second clamping portion 6 has a second inclined surface 60 on the surface away from the second end of the second rod body 4;

[0052] The locking ring 8 has a third inclined surface 10 that abuts against the first inclined surface 30 and the second inclined surface 60.

[0053] As can be seen from the embodiment, the first inclined surface 30, the second inclined surface 60 and the third inclined surface 10 are formed, which can increase the contact area when the locking ring 8 abuts against the first clamping portion 3 and the second clamping portion 6, thereby improving the stability of locking the first clamping portion 3 and the second clamping portion 6, and further improving the locking effect between the connecting rod 7, the first rod body 1 and the second rod body 4.

[0054] Embodiment 3:

[0055] The embodiment provides a bidirectional telescopic locking pull rod assembly, in addition to the technical scheme of the above embodiment, further having the following technical features:

[0056] The middle section of the connecting rod 7 is formed with a leverage part 11;

[0057] The leverage part 11 and the connecting rod 7 adopt an integral structure.

[0058] It can be seen that, through the leverage part 11, force is applied to rotate the connecting rod 7, and then the outer thread on the connecting rod 7 is driven to cooperate with the first threaded hole 2 of the first rod body 1 and the second threaded hole 5 of the second rod body 4 to adjust the length of the pull rod, further improving the adjustment convenience.

[0059] After the length is adjusted, the leverage part 11 is temporarily locked by applying force, and then the locking nut 9 is rotated to push the locking ring 8 to abut against the first clamping part 3 and the second clamping part 6, thereby bidirectionally locking the connecting rod 7, the first rod body 1 and the second rod body 4, which is simple to operate and has high convenience.

[0060] Embodiment 4:

[0061] The embodiment provides a bidirectional telescopic locking pull rod assembly, in addition to the technical scheme of the above embodiment, further having the following technical features:

[0062] The radial section of the leverage part 11 is a regular hexagon.

[0063] It can be seen that, by adopting a regular hexagonal structure of the leverage part 11, the leverage part 11 is clamped by a wrench, force is applied to the leverage part 11, the upper limit of the force is improved, and the stability after adjustment is ensured.

[0064] Embodiment 5:

[0065] The embodiment provides a bidirectional telescopic locking pull rod assembly, in addition to the technical scheme of the above embodiment, further having the following technical features:

[0066] The locking nut 9, the first clamping part 3 and the second clamping part 6 are all formed with a compensation gap 12.

[0067] It can be seen that, by arranging the compensation gap 12, when the first inclined surface 30, the second inclined surface 60 and the third inclined surface 10 are slightly worn, the loosening caused by the wear can be eliminated by continuing to tighten the locking nut 9, and the stability of the structure is effectively ensured.

[0068] Embodiment 6:

[0069] The embodiment provides a two-way telescopic locking pull rod assembly.

[0070] The first clamping part 3 and the second clamping part 6 are provided with internal threads matched with external threads on one side close to the shaft center;

[0071] The first clamping part 3 and the second clamping part 6 are formed by first drilling counterbores on end faces of the first rod body 1 and the second rod body 4, tapping the counterbores, and then processing the first clamping part 3 and the second clamping part 6 with internal threads.

[0072] The embodiment can be seen that, by arranging internal threads on the first clamping part 3 and the second clamping part 6, when the first clamping part 3 and the second clamping part 6 are abutted by the locking ring 8 and are bent towards one end of the shaft center, the axial limiting effect can be formed between the internal threads and external threads on the surface of the connecting rod 7, the two-way locking after the two-way telescopic of the pull rod is ensured, and the structural stability is improved.

[0073] Embodiment 7:

[0074] The embodiment provides a two-way telescopic locking pull rod assembly.

[0075] The first clamping part 3 and the second clamping part 6 are provided with multiple internal threads along the circumference at equal intervals, and grooves 13 are formed between every two adjacent first clamping parts 3 and every two adjacent second clamping parts 6.

[0076] Preferably, the first clamping part 3 and the second clamping part 6 are four, the grooves 13 are also four, and the grooves 13 are provided at equal intervals along the circumference.

[0077] The embodiment can be seen that, by arranging multiple first clamping parts 3 and second clamping parts 6, the uniformity of the clamping force of the first clamping part 3 and the second clamping part 6 on the connecting rod 7 in the circumferential direction can be improved, but the number should not be too large, preferably three to six, so that the structural strength of the first clamping part 3 and the second clamping part 6 is not reduced due to arrangement of multiple first clamping parts 3 and second clamping parts 6.

[0078] Embodiment 8:

[0079] The embodiment provides a two-way telescopic locking pull rod assembly.

[0080] The locking ring 8 is provided with a protrusion 14 matched with the groove 13 on the inner wall in the radial direction.

[0081] Preferably, the protrusion 14 is at least one.

[0082] It can be seen from the embodiment that the setting of the protrusion 14 enables the radial rotation of the locking ring 8 to be limited after the protrusion 14 cooperates with the groove 13, the radial rotation due to vibration is avoided, the rotation of the locking nut 9 is further promoted, a better anti-rotation effect is achieved, and the stability of the connection is ensured.

[0083] The embodiments of the application are described above in combination with the drawings, the embodiments in the application and the features in the embodiments can be combined with each other without conflicts, the application is not limited to the above specific embodiments, the above specific embodiments are only illustrative but not restrictive, and those of ordinary skill in the art can make many forms under the inspiration of the application without departing from the purpose of the application and the scope protected by the claims, and all the forms belong to the protection of the application.

Claims

1. A bidirectional telescopic locking tie rod assembly, characterized in that, The utility model relates to a two-way telescopic locking's pull rod assembly, including: First pole body (1), one end is provided with first threaded hole (2), and is provided with first clamping portion (3) in the end portion; Second pole body (4), one end is provided with second threaded hole (5), and is provided with second clamping portion (6) in the end portion; Connecting rod (7), the surface is provided with the outer thread of adaptation with first threaded hole (2) and second threaded hole (5); Locking ring (8), is set on first clamping portion (3) and second clamping portion (6), and is used to push first clamping portion (3) and second clamping portion (6) to the side bending of axis after moving in the axial direction; Locking nut (9), is connected in the threaded connection on connecting rod (7), and is used to push locking ring (8) axial movement.

2. The two-way telescopic locking's pull rod assembly of claim 1, wherein: The surface of the first clamping portion (3) away from the one end of the first pole body (1) is provided with a first inclined surface (30); The surface of the second clamping portion (6) away from the one end of the second pole body (4) is provided with a second inclined surface (60); Wherein, the locking ring (8) is provided with a third inclined surface (10) abutting with the first inclined surface (30) and the second inclined surface (60).

3. The two-way telescopic locking's pull rod assembly of claim 1, wherein: The middle section of the connecting rod (7) is formed with a leverage portion (11).

4. The two-way telescopic locking's pull rod assembly of claim 3, wherein: The radial cross-section of the leverage portion (11) is a regular hexagon.

5. The two-way telescopic locking's pull rod assembly of claim 1, wherein: The locking nut (9) forms a compensation gap (12) with the first clamping portion (3) and the second clamping portion (6).

6. The two-way telescopic locking's pull rod assembly of claim 1, wherein: The first clamping portion (3) and the second clamping portion (6) are provided with internal threads near the axis.

7. The two-way telescopic locking's pull rod assembly of claim 1, wherein: The first clamping portion (3) and the second clamping portion (6) are equally spaced along the circumference, and the first clamping portion (3) and the second clamping portion (6) form a groove (13) between each other.

8. The two-way telescopic locking's pull rod assembly of claim 7, wherein: The locking ring (8) is provided with a protrusion (14) on the inner wall along the radial direction, which is adapted to the groove (13).

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