CN219635305U

CN219635305U - Steering vertical arm, steering mechanism and vehicle

Info

Publication number: CN219635305U
Application number: CN202320261399.3U
Authority: CN
Inventors: 陈立; 陈军; 袁永盛; 宁宇
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2023-02-14
Filing date: 2023-02-14
Publication date: 2023-09-05
Anticipated expiration: 2033-02-14

Abstract

The utility model discloses a steering vertical arm, a steering mechanism and a vehicle. The steering vertical arm comprises a first arm body, a second arm body, a first adjusting piece and a first connector, wherein a first connecting hole is formed in the first end of the first arm body; the first end of the second arm body is used for connecting a straight pull rod of the steering mechanism; the end face of the second end of the first arm body is opposite to the end face of the second end of the second arm body; one of the first arm body and the second arm body is fixedly connected with the first adjusting piece, and the other one of the first arm body and the second arm body is movably connected with the first adjusting piece and can move relative to the first adjusting piece so as to enable the end face of the second end of the first arm body to be close to or far from the end face of the second end of the second arm body; the first connector is used for connecting a steering gear of the steering mechanism; the first connector is arranged in the first connecting hole and can rotate relative to the first arm body.

Description

Steering vertical arm, steering mechanism and vehicle

Technical Field

The utility model relates to the technical field of vehicle components, in particular to a steering vertical arm, a steering mechanism and a vehicle.

Background

The steering vertical arm is a connecting piece applied to a vehicle steering mechanism, is a main stressed component of an automobile steering transmission mechanism, and is used for transmitting the force and the motion output by a steering device to a steering tie rod so as to push steering wheels to deflect.

When the engineering test vehicle is used for testing the related performance of a steering system, the steering drop arm serving as an automobile safety part plays an important role. However, in the prior art, the steering drop arm is mostly of an integral structure, and the adjustment of the length and the angle cannot be performed. Therefore, when the performance influence of different hard point positions is required to be verified, various steering suspension arm samples are required to be manufactured for verification; this not only results in a longer verification period, but also results in higher verification costs.

In view of the foregoing, a new solution is needed to solve the above-mentioned problems.

Disclosure of Invention

An object of the present utility model is to provide a new solution for a steering drop arm, steering mechanism and vehicle.

According to a first aspect of the present utility model there is provided a drop arm comprising:

the first arm body is provided with a first connecting hole at the first end;

the first end of the second arm body is used for being connected with a straight pull rod of the steering mechanism;

the end face of the second end of the first arm body is opposite to the end face of the second end of the second arm body;

the first adjusting piece is fixedly connected with one of the first arm body and the second arm body, and the other of the first arm body and the second arm body is movably connected with the first adjusting piece and can move relative to the first adjusting piece so as to enable the end face of the second end of the first arm body to be close to or far from the end face of the second end of the second arm body;

a first connector for connecting a steering gear of a steering mechanism; the first connector is arranged in the first connecting hole and can rotate relative to the first arm body.

Optionally, the first adjusting piece comprises an adjusting bolt and two adjusting nuts, the first arm body is provided with a connecting part, and the connecting part is provided with a connecting perforation; one end of the adjusting bolt is fixedly connected with the second arm body, the other end of the adjusting bolt penetrates through the connecting through hole, the two adjusting nuts are connected with the adjusting bolt, and the connecting portion is clamped between the two adjusting nuts.

Optionally, a window is formed in the first arm body at a position close to the end face of the second end of the first arm body, and the connection part is formed by a structure between the end face of the second end of the first arm body and the window; the other end of the adjusting bolt passes through the connecting through hole and is exposed to the window part.

Optionally, a positioning hole is formed in the end face of the second end of the second arm body, and one end of the adjusting bolt is fixedly connected with the second arm body at the positioning hole.

Optionally, one of the first arm body and the second arm body is provided with an inserting block at the end face of the second end of the first arm body, the other one of the first arm body and the second arm body is provided with an inserting groove at the end face of the second end of the second arm body, and the inserting block is in matched insertion connection with the inserting groove.

Optionally, the first end of the second arm body is provided with a second connecting hole, and the steering vertical arm further comprises a second connector, wherein the second connector is used for connecting a straight pull rod of the steering mechanism; the second connector is arranged in the second connecting hole and is fixedly connected with the second arm body.

Optionally, the second arm body is provided with a first connecting groove at the inner wall corresponding to the second connecting hole, the side part of the second connector is provided with a second connecting groove, and the steering vertical arm further comprises a locking block;

under the condition that the second connector is arranged in the second connecting hole, the second connecting groove is correspondingly communicated with the first connecting groove, and the locking block is inserted into the first connecting groove and the second connecting groove.

Optionally, the first arm body is provided with an arc groove at the inner wall corresponding to the first connecting hole, and a part of the first connector is rotatably connected in the arc groove.

Optionally, the first connector includes a body portion and a limiting block, a slot is formed in a side wall of the body portion, an inner side wall of the limiting block is attached to a position of the body portion corresponding to the slot, and an outer side wall of the limiting block is rotatably connected in the arc-shaped slot;

a first connecting table and a second connecting table are arranged in the arc-shaped groove, and the first connecting table and the second connecting table are respectively positioned at two sides of the center of the first connecting hole along the radial direction;

the steering vertical arm further comprises a second adjusting piece and a third adjusting piece, the second adjusting piece is movably connected with the first connecting table, and the third adjusting piece is movably connected with the second connecting table;

the first end of the limiting block is abutted with the second adjusting piece, and the second end of the limiting block is abutted with the third adjusting piece.

Optionally, a first mating surface and a second mating surface are formed at two ends of the body portion corresponding to the notch respectively;

the first end of the limiting block comprises a first joint surface and a first limiting surface, and the second end of the limiting block comprises a second joint surface and a second limiting surface;

the first fitting surface is in fitting connection with the first fitting surface, and the first limiting surface is abutted against the second adjusting piece; the second fitting surface is in fitting connection with the second fitting surface, and the second limiting surface is in abutting connection with the third adjusting piece.

Optionally, the second adjusting piece and the third adjusting piece are adjusting screws, the first connecting table and the second connecting table are respectively provided with threaded holes, the second adjusting piece is connected to the threaded holes of the first connecting table, and the third adjusting piece is connected to the threaded holes of the second connecting table.

According to a second aspect of the present utility model there is provided a steering mechanism comprising a drop arm as described in the first aspect.

According to a third aspect of the present utility model there is provided a vehicle comprising a steering mechanism as described in the second aspect.

The technical scheme adopted by the utility model can achieve the following beneficial effects:

the steering vertical arm provided by the embodiment of the utility model has the advantages of simple structure and convenience in use; which can be adjusted in length and angle. Therefore, only one steering vertical arm is needed to verify the performance influence of different hard point positions, and a plurality of steering vertical arms are not needed to be manufactured, so that the verification cost and time are greatly saved.

Other features of the present utility model and its advantages will become apparent from the following detailed description of exemplary embodiments of the utility model, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description, serve to explain the principles of the utility model.

FIG. 1 is a schematic view of the overall construction of a drop arm according to one embodiment of the present utility model;

FIG. 2 is a schematic exploded view of a drop arm according to one embodiment of the present utility model;

FIG. 3 is a schematic view of the structure of the first arm body in the drop arm according to one embodiment of the present utility model;

FIG. 4 is a schematic view of the structure of the second arm body in the drop arm according to one embodiment of the present utility model;

FIG. 5 is a schematic structural view of the body portion of the first connector in the drop arm according to one embodiment of the present utility model;

FIG. 6 is a schematic view of the stopper of the first connector in the drop arm according to one embodiment of the present utility model;

fig. 7 is a schematic structural view of a second connector in a drop arm according to one embodiment of the present utility model.

Reference numerals illustrate:

1. a steering drop arm; 11. a first arm body; 110. a first connection hole; 111. a connection part; 1110. connecting the through holes; 112. a window portion; 113. an arc-shaped groove; 114. a first connection station; 115. a second connection station; 12. a second arm body; 100. a plug block; 120. a second connection hole; 121. positioning holes; 122. a first connection groove; 13. a first adjustment member; 131. an adjusting bolt; 132. an adjusting nut; 14. a first connector; 140. a body portion; 1400. a spline hole; 1401. a first mating surface; 1402. a second mating surface; 141. a limiting block; 1411. a first bonding surface; 1412. a first limiting surface; 1413. a second bonding surface; 1414. the second limiting surface; 15. a second connector; 151. a second connecting groove; 16. a locking block; 17. a second adjusting member; 18. and a third adjusting member.

Detailed Description

Various exemplary embodiments of the present utility model will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise.

The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses.

Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

Referring to fig. 1-7, a drop arm 1 is provided according to one embodiment of the present utility model. The steering vertical arm 1 comprises a first arm body 11, a second arm body 12, a first adjusting piece 13 and a first connector 14, wherein a first connecting hole 110 is formed at a first end of the first arm body 11; the first end of the second arm body 12 is used for connecting a straight pull rod of a steering mechanism; an end surface of the second end of the first arm 11 is opposite to an end surface of the second end of the second arm 12; one of the first arm 11 and the second arm 12 is fixedly connected with the first adjusting member 13, and the other of the first arm 11 and the second arm 12 is movably connected with the first adjusting member 13 and can move relative to the first adjusting member 13, so that the end face of the second end of the first arm 11 is close to or far from the end face of the second end of the second arm 12; the first connector 14 is used for connecting a steering gear of a steering mechanism; the first connector 14 is disposed in the first connecting hole 110, and the first connector 14 can rotate relative to the first arm 11.

The length and angle of the steering drop arm 1 provided by the embodiment of the utility model can be adjusted. When the length of the drop arm 1 needs to be adjusted, for example, the end face of the second end of the first arm body 11 and the end face of the second end of the second arm body 12 are moved close to each other, so that the length of the drop arm 1 can be adjusted to be short; the length of the drop arm 1 can be adjusted by moving the end face of the second end of the first arm 11 and the end face of the second end of the second arm 12 away from each other.

The length adjustment of the above-mentioned drop arm 1 is effected by means of the first adjustment member 13. The first adjusting member 13 is fixedly connected to one of the first arm 11 and the second arm 12, and is movably connected to the other. For example, the second arm 12 is fixedly connected to the first adjusting member 13, and the first arm 11 is movable relative to the first adjusting member 13. When the first arm 11 moves relative to the first adjustment member 13, the first arm 11 moves closer to or farther from the second arm 12, thereby changing the overall length of the entire drop arm 1. Of course, the first arm 11 may be fixedly connected to the first adjusting member 13, and the second arm 12 may be movable relative to the first adjusting member 13.

When the angle adjustment needs to be performed on the steering drop arm 1, the angle adjustment can be realized by relatively rotating the first connector 14 and the first arm body 11.

In the prior art, as the steering vertical arm is of an integral structure, the length and the angle of the steering vertical arm are fixed and cannot be adjusted; therefore, when the angle or the length needs to be adjusted to verify the influence of different hard spot positions on the performance, namely, each time the angle or the length needs to be adjusted for verification, the sample piece of the steering vertical arm needs to be manufactured again; this is time consuming and laborious and costly.

When the steering vertical arm 1 provided by the embodiment of the utility model is used for verifying the related performance of a steering system, the length and the angle of the steering vertical arm 1 can be adjusted according to the verification requirement, so that the performance influence of different hard point positions can be verified by only using one steering vertical arm, and a plurality of steering vertical arms are not required to be manufactured, thereby greatly saving the verification cost and time. After verification is completed, the steering vertical arm with a fixed structure can be manufactured according to the verification result for trial assembly.

Referring to fig. 1 and 2, in one embodiment, the first adjusting member 13 includes an adjusting bolt 131 and two adjusting nuts 132, the first arm 11 has a connecting portion 111, and the connecting portion 111 is provided with a connecting through hole 1110; one end of the adjusting bolt 131 is fixedly connected with the second arm body 12, the other end of the adjusting bolt 131 passes through the connecting hole 1110, two adjusting nuts 132 are connected with the adjusting bolt 131, and the connecting portion 111 is clamped between the two adjusting nuts 132.

In this specific example, the adjusting bolt 131 in the first adjusting member 13 is responsible for connection with the first arm 11 and the second arm 12. For example, one end of the adjusting bolt 131 is fixedly connected to the second arm 12, i.e., the relative position between the adjusting bolt 131 and the second arm 12 is not adjustable after the two are connected. And the first arm 11 is movably connected with the adjusting bolt 131; specifically, a connection through hole 1110 is formed in the connection portion 111 of the first arm 11, and the other end of the adjustment bolt 131 passes through the connection through hole 1110; the distance between the first arm 11 and the second arm 12, that is, the length of the drop arm 1, can be adjusted by moving the first arm 11 along the adjusting bolt 131. It is understood that the axial direction of the adjusting bolt 131 is the opposite direction between the first arm 11 and the second arm 12.

When the first arm 11 is moved to a desired position along the adjustment bolt 131, the position of the first arm 11 is fixed by the adjustment nut 132. Specifically, according to the direction shown in fig. 1, one adjusting nut 132 is located below the connecting portion 111 of the first arm 11, the other adjusting nut 132 is located above the connecting portion 111, and the two adjusting nuts 132 sandwich the connecting portion 111 of the first arm 11, so that the position of the first arm 11 can be fixed.

Referring to fig. 1 and 3, in one embodiment, the first arm 11 is provided with a window 112 near the end face of the second end, and the connection portion 111 is formed by a structure between the end face of the second end of the first arm 11 and the window 112; the other end of the adjustment bolt 131 passes through the connection hole 1110 and is exposed to the window portion 112.

In this specific example, the window 112 formed in the first arm 11 can be easily attached. Specifically, in the process of installation, the lower adjusting nut 132 is connected to the adjusting bolt 131, then the end of the adjusting bolt 131 far from the second arm 12 passes through the connecting hole 1110, the first arm 11 is moved to a desired proper position, and then the upper adjusting nut 132 is screwed to the adjusting bolt 131 through the window 112, so that the position of the first arm 11 can be fixed.

Referring to fig. 2 and 4, in one embodiment, the second arm 12 is provided with a positioning hole 121 at an end surface of the second end, and one end of the adjusting bolt 131 is fixedly connected with the second arm 12 at the positioning hole 121.

In this specific example, the adjustment bolt 131 and the second arm 12 may be connected at the positioning hole 121, for example, one end of the adjustment bolt 131 is sunk into the positioning hole 121 and the adjustment bolt 131 is welded at the positioning hole 121. The positioning holes 121 can enable the mounting position of the adjusting bolt 131 on the second arm body 12 to be accurate and the mounting operation to be convenient.

Referring to fig. 2-4, in one embodiment, one of the first arm 11 and the second arm 12 is provided with a plug block 100 at an end face of the second end thereof, and the other is provided with a plug groove at an end face of the second end thereof, and the plug block 100 is plugged with the plug groove in a matching manner.

In this specific example, the first arm 11 and the second arm 12 are configured to be similar to a mortise-tenon connection through the mating engagement of the engagement block 100 and the engagement groove. For example, the first arm 11 may be provided with the insertion block 100, while the second arm 12 may be provided with the insertion groove; of course, the first arm 11 may be provided with a socket, and the second arm 12 may be provided with a socket block 100. The mortise-tenon connection structure not only can improve the connection reliability of the first arm body 11 and the second arm body 12, but also is beneficial to the transmission of the output torque of the steering gear. And the relative position adjustment of the first arm 11 and the second arm 12 by the first adjusting member 13 is not affected.

Referring to fig. 1 and 4, in one embodiment, the first end of the second arm body 12 is provided with a second connection hole 120, and the vertical steering arm further includes a second connector 15, where the second connector 15 is used to connect with a straight pull rod of the steering mechanism; the second connector 15 is disposed in the second connection hole 120, and the second connector 15 is fixedly connected to the second arm 12.

In this specific example, the second connector 15 is fixedly mounted in the second connection hole 120 of the second arm body 12, so that the connection between the drop arm 1 and the straight rod of the steering mechanism is achieved. Further, the second connector 15 has a cylindrical structure, and the inner hole of the second connector 15 can be made into taper holes with different sizes so as to be connected with straight pull rod ball heads with different sizes.

The above-mentioned different hard point positions are different arrangement points of the center of the second connecting hole 120 in the whole vehicle space. For example, different distances between the center of the second connecting hole 120 and the center of the first connecting hole 110 are different hard points; the different angles of the center of the second connecting hole 120 with respect to the center of the first connecting hole 110 are also different hard points.

Referring to fig. 1, 2, 4 and 7, in one embodiment, the second arm body 12 is provided with a first connection groove 122 at an inner wall corresponding to the second connection hole 120, a second connection groove 151 is provided at a side portion of the second connector 15, and the steering vertical arm further includes a locking block 16; when the second connector 15 is disposed in the second connection hole 120, the second connection groove 151 communicates with the first connection groove 122, and the locking block 16 is inserted into the first connection groove 122 and the second connection groove 151.

In this specific example, the second connector 15 and the second arm 12 are connected specifically by a lock block 16; the second connecting groove 151 of the second connector 15 is butted with the first connecting groove 122 of the second arm body 12 to form a closed connecting hole, the connecting hole is matched with the locking block 16, and the locking block 16 is inserted into the connecting hole to realize the fixed connection between the second connector 15 and the second arm body 12. It should be understood that the fixed connection between the second connector 15 and the second arm 12 means that no relative movement occurs between the second connector 15 and the second arm 12 after the second connector 15 is connected, and not that the second connector 15 is not detachable after the second connector is connected to the second arm 12.

Referring to fig. 3, in one embodiment, the first arm 11 is provided with an arc groove 113 at an inner wall corresponding to the first connection hole 110, and a portion of the first connector 14 is rotatably connected to the arc groove 113.

In this specific example, a part of the structure of the first connector 14 is fitted into the arc groove 113, and the first connector 14 and the first arm body 11 can be relatively rotated, thereby achieving the angle adjustment of the drop arm 1.

Referring to fig. 1, 2, 5 and 6, in one embodiment, the first connector 14 includes a body 140 and a stopper 141, a slot is formed on a side wall of the body 140, an inner side wall of the stopper 141 is attached to a position of the body 140 corresponding to the slot, and an outer side wall of the stopper 141 is rotatably connected in the arc-shaped slot 113;

a first connection table 114 and a second connection table 115 are disposed in the arc-shaped groove 113, and the first connection table 114 and the second connection table 115 are respectively located at two sides of the center of the first connection hole 110 along the radial direction;

the steering vertical arm further comprises a second adjusting piece 17 and a third adjusting piece 18, wherein the second adjusting piece 17 is movably connected with the first connecting table 114, and the third adjusting piece 18 is movably connected with the second connecting table 115; the first end of the limiting block 141 abuts against the second adjusting member 17, and the second end of the limiting block 141 abuts against the third adjusting member 18. For example, the second adjusting member 17 and the third adjusting member 18 are adjusting screws, the first connecting table 114 and the second connecting table 115 are respectively provided with threaded holes, the second adjusting member 17 is connected to the threaded hole of the first connecting table 114, and the third adjusting member 18 is connected to the threaded hole of the second connecting table 115.

In this specific example, the first connector 14 is rotated and positioned relative to the first arm 11 by the abutment between the second and third adjusting members 17 and 18 and the stopper 141. Specifically, referring to the direction shown in fig. 1 (in fig. 1, gaps are formed between the second adjusting member 17 and the third adjusting member 18 and the stopper 141; in actual use, the second adjusting member 17 and the third adjusting member 18 are simultaneously abutted against the stopper 141), when the stopper 141 needs to be rotated clockwise, the left second adjusting member 17 is screwed up, and the right third adjusting member 18 is screwed down; that is, the length of the left second regulating member 17 extending out of the first connecting stage 114 is increased, while the length of the right third regulating member 18 extending out of the second connecting stage 115 is decreased. When the limiting block 141 needs to be rotated anticlockwise, the third adjusting piece 18 on the right is screwed upwards, and the second adjusting piece 17 on the left is screwed downwards; that is, the length of the third adjusting member 18 on the right extending from the second connecting table 115 is increased, while the length of the second adjusting member 17 on the left extending from the first connecting table 114 is decreased. The adjustment mode similar to the teeterboard is stable and reliable, and the adjustment operation is very convenient.

Referring to fig. 1, 5, and 6, in one embodiment, a first mating surface 1401 and a second mating surface 1402 are formed at two ends of the body 140 corresponding to the notch, respectively; the first end of the limiting block 141 includes a first bonding surface 1411 and a first limiting surface 1412, and the second end of the limiting block 141 includes a second bonding surface 1413 and a second limiting surface 1414; the first fitting surface 1411 is in fitting connection with the first fitting surface 1401, and the first limiting surface 1412 is abutted against the second adjusting member 17; the second fitting surface 1413 is fitted to the second fitting surface 1402, and the second limiting surface 1414 abuts against the third adjusting member 18.

In this specific example, when the stopper 141 is connected to the body 140, not only the inner wall of the stopper 141 is bonded to the body 140; and both ends of the stopper 141 are abutted against the body portion 140. Specifically, the first fitting surface 1411 in the first end of the stopper 141 is fitted to the first fitting surface 1401 of the body portion 140, and the second fitting surface 1413 in the second end of the stopper 141 is fitted to the second fitting surface 1402 of the body portion 140; when the stopper 141 rotates, the stopper 141 drives the body 140 to rotate together, so as to realize the relative rotation between the first connector 14 and the first arm 11.

Further, referring to fig. 5, the body 140 has a hollow structure having a spline hole 1400. And, the outer shape of the body part 140 has a stepped structure, that is, the body part includes a first cylinder having a smaller diameter and a second cylinder having a larger diameter, and the first cylinder and the second cylinder are connected to each other in an axial direction. The first cylinder with smaller diameter is provided with the notch and is connected with the limiting block 141 in a matched manner; the stepped structure serves to axially locate the first arm 11.

In summary, the steering vertical arm provided by the embodiment of the utility model has wide applicability, almost all vehicle types arranged by the vertical steering device can be used, the initial angle of the steering vertical arm on the whole vehicle and the length of the steering vertical arm can be flexibly changed under the condition that the arrangement position of the steering device is not changed, and the steering vertical arm is suitable for straight pull rods with different lengths. The steering vertical arm provided by the embodiment of the utility model can be used for adjusting and obtaining the hard point position required by design at any time, and adjusting the arrangement scheme in time, so as to verify the relevant performance of the steering system. The test and verification method has the advantages that the test and verification method does not need to manufacture steering vertical arm samples in various states for verification, the design period and verification period of products are greatly shortened, and the test and verification cost is saved.

According to another embodiment of the present utility model, there is provided a steering mechanism including the steering drop arm 1, the steering gear and the straight pull rod as described above; wherein the steering gear is connected with a first connector 14 of the drop arm 1 and the straight pull rod is connected with a second connector 15 of the drop arm 1.

According to yet another embodiment of the present utility model, there is provided a vehicle including the steering mechanism as described above.

The foregoing embodiments mainly describe differences between the embodiments, and as long as there is no contradiction between different optimization features of the embodiments, the embodiments may be combined to form a better embodiment, and in consideration of brevity of line text, no further description is given here.

While certain specific embodiments of the utility model have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the utility model. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the utility model. The scope of the utility model is defined by the appended claims.

Claims

1. A drop arm, the drop arm comprising:

a first arm body (11), wherein a first connecting hole (110) is formed at a first end of the first arm body (11);

the first end of the second arm body (12) is used for being connected with a straight pull rod of the steering mechanism;

an end face of the second end of the first arm body (11) is opposite to an end face of the second end of the second arm body (12);

the first adjusting piece (13), one of the first arm body (11) and the second arm body (12) is fixedly connected with the first adjusting piece (13), the other of the first arm body (11) and the second arm body (12) is movably connected with the first adjusting piece (13) and can move relative to the first adjusting piece (13), so that the end face of the second end of the first arm body (11) is close to or far away from the end face of the second end of the second arm body (12);

a first connector (14), the first connector (14) being for connecting a steering gear of a steering mechanism; the first connector (14) is arranged in the first connecting hole (110), and the first connector (14) can rotate relative to the first arm body (11).

2. The steering drop arm according to claim 1, characterized in that the first adjusting member (13) comprises an adjusting bolt (131) and two adjusting nuts (132), the first arm body (11) has a connecting portion (111), the connecting portion (111) is provided with a connecting through hole (1110); one end of each adjusting bolt (131) is fixedly connected with the corresponding second arm body (12), the other end of each adjusting bolt (131) penetrates through the corresponding connecting through hole (1110), two adjusting nuts (132) are connected with the corresponding adjusting bolts (131), and the connecting portion (111) is clamped between the two adjusting nuts (132).

3. The steering drop arm according to claim 2, characterized in that the first arm body (11) is provided with a window portion (112) at a position near an end face of the second end thereof, and a structure between the end face of the second end of the first arm body (11) and the window portion (112) forms the connecting portion (111); the other end of the adjusting bolt (131) passes through the connecting through hole (1110) and is exposed to the window portion (112).

4. The steering drop arm according to claim 2, characterized in that the second arm body (12) is provided with a positioning hole (121) at the end face of the second end thereof, and one end of the adjusting bolt (131) is fixedly connected with the second arm body (12) at the positioning hole (121).

5. The drop arm according to any one of claims 1-4, characterized in that one of the first arm body (11) and the second arm body (12) is provided with a plug-in block (100) at the end face of its second end, the other is provided with a plug-in groove at the end face of its second end, the plug-in block (100) being matingly plugged with the plug-in groove.

6. The drop arm according to any one of claims 1-4, characterized in that the first end of the second arm body (12) is provided with a second connection hole (120), the drop arm further comprising a second connector (15), the second connector (15) being for connecting a straight pull rod of a steering mechanism; the second connector (15) is arranged in the second connecting hole (120), and the second connector (15) is fixedly connected with the second arm body (12).

7. The steering drop arm according to claim 6, wherein the second arm body (12) is provided with a first connecting groove (122) at an inner wall corresponding to the second connecting hole (120), a second connecting groove (151) is provided at a side portion of the second connector (15), and the steering drop arm further comprises a locking block (16);

when the second connector (15) is disposed in the second connection hole (120), the second connection groove (151) is correspondingly communicated with the first connection groove (122), and the locking block (16) is inserted into the first connection groove (122) and the second connection groove (151).

8. The steering drop arm according to claim 1, characterized in that the first arm body (11) is provided with an arc-shaped groove (113) at an inner wall corresponding to the first connecting hole (110), and a portion of the first connector (14) is rotatably connected in the arc-shaped groove (113).

9. The steering drop arm according to claim 8, wherein the first connector (14) comprises a body portion (140) and a limiting block (141), a notch is formed in a side wall of the body portion (140), an inner side wall of the limiting block (141) is arranged at a position corresponding to the notch in a fitting manner on the body portion (140), and an outer side wall of the limiting block (141) is rotatably connected in the arc-shaped groove (113);

a first connecting table (114) and a second connecting table (115) are arranged in the arc-shaped groove (113), and the first connecting table (114) and the second connecting table (115) are respectively positioned at two sides of the center of the first connecting hole (110) along the radial direction;

the steering vertical arm further comprises a second adjusting piece (17) and a third adjusting piece (18), the second adjusting piece (17) is movably connected with the first connecting table (114), and the third adjusting piece (18) is movably connected with the second connecting table (115);

the first end of the limiting block (141) is abutted with the second adjusting piece (17), and the second end of the limiting block (141) is abutted with the third adjusting piece (18).

10. The drop arm of claim 9, wherein the body portion (140) is formed with a first mating surface (1401) and a second mating surface (1402) at respective ends corresponding to the notch;

the first end of the limiting block (141) comprises a first bonding surface (1411) and a first limiting surface (1412), and the second end of the limiting block (141) comprises a second bonding surface (1413) and a second limiting surface (1414);

the first fitting surface (1411) is in fitting connection with the first fitting surface (1401), and the first limiting surface (1412) is abutted against the second adjusting piece (17); the second fitting surface (1413) is fitted to the second fitting surface (1402), and the second limiting surface (1414) is abutted to the third adjusting member (18).

11. The steering drop arm according to claim 9, wherein the second adjusting member (17) and the third adjusting member (18) are adjusting screws, the first connecting table (114) and the second connecting table (115) are respectively provided with threaded holes, the second adjusting member (17) is connected to the threaded holes of the first connecting table (114), and the third adjusting member (18) is connected to the threaded holes of the second connecting table (115).

12. Steering mechanism, characterized in that it comprises a drop arm (1) according to any one of claims 1-11.

13. A vehicle comprising the steering mechanism of claim 12.