Suspension guide arm

Abstract

The utility model relates to a suspension guide arm, which comprises an arm body, an axle mounting hole is arranged in the middle of the arm body, the axle mounting hole is used for mounting an axle, a pore plate is arranged at the axle mounting hole, the pore plate extends towards at least one side of two sides to form an extension plate, and the pore plate and the extension plate are attached to the axle. According to the suspension guide arm, the extension plates are arranged on the two sides of the pore plate and extend out of the guide arm body, and then the length of the axle mounting hole is increased; the connecting strength of the axle and the axle mounting hole is improved, and when the axle deviates laterally, the extension plate can provide supporting force.

Description

Technical Field

[0001] The utility model relates to the field of vehicles, in particular to a guide arm in a vehicle. Background Art

[0002] The suspension device is one of the conventional accessories of transport vehicles such as trailers and semi-trailers. The existing suspension device includes a guide arm, one end of the guide arm is used to connect to the bracket on the frame, the other end is connected to the airbag, and the middle part of the guide arm is installed with the axle.

[0003] The existing suspension guide arm can be connected to the axle through a U-shaped screw or a preset axle mounting hole. When connected through the axle mounting hole, the connection strength between the axle mounting hole and the axle is limited, and the axle is prone to moving or offset on the axle mounting hole. At the same time, the axle mounting hole is subjected to excessive force and is easily damaged due to the excessive force. Utility Model Content

[0004] The main purpose of the utility model is to provide a guide arm, which aims to solve the problem that when the existing suspension guide arm is installed with an axle through the axle mounting hole, the connection strength between the axle and the axle mounting hole is limited.

[0005] The utility model provides a suspension guide arm, which includes an arm body, an axle mounting hole is provided in the middle of the arm body, the axle mounting hole is used to install the axle, the axle mounting hole is a perforated plate, and the perforated plate extends to at least one of the left and right sides to form an extension plate, the left and right sides refer to the left and right sides of the suspension guide arm, and the perforated plate and the extension plate are in contact with the axle.

[0006] Preferably, the axle is a square axle, the orifice plate includes vertical plates located at the front and rear sides of the square axle, and the extension plate extends from the vertical plates to at least one of the left and right sides.

[0007] More preferably, the arm body includes a front arm body located at the front and a rear arm body located at the rear, and the rear of the front arm body and the front of the rear arm body are respectively provided with a front clamp and a rear clamp, and the front clamp and the rear clamp form the axle mounting hole, and the orifice plate is a front clamp and a rear clamp that are buckled together.

[0008] More preferably, the front and rear clamps each include an L-plate, which is fastened to form the axle mounting hole. Both ends of the L-plate are provided with outwardly extending folding plates, each of which is provided with a mounting hole. The folding plates of the front and rear clamps are symmetrically arranged and connected by bolts passing through the mounting holes.

[0009] More preferably, the L-plate includes a transverse plate and a vertical plate, and at least one of the vertical plates of the front clamp and the vertical plate of the rear clamp is provided with an extension plate extending along the axle direction, that is, extending in the left and right directions, and the extension plate is in contact with the axle.

[0010] More preferably, reinforcing plates are provided at the bending positions of the folding plate and the L-plate, and the reinforcing plates are respectively connected to the folding plate and the L-plate.

[0011] More preferably, the reinforcing plate is arranged in a triangular shape, and two reinforcing edges of the reinforcing plate are respectively attached to and fixed to the folding plate and the L-plate.

[0012] More preferably, the side of the extension plate in the extension direction of the axle is a transverse side, and the transverse side is connected to the axle by welding.

[0013] More preferably, the lateral edge of the extension plate is longitudinally welded to the side of the axle. It should be noted that the side of the axle refers to the front side or rear side of the axle, and the upper and lower sides of the axle are the upper end face and the lower end face, that is, the welding is concentrated on the side of the axle and is arranged longitudinally.

[0014] Compared with the prior art, the suspension guide arm provided by the present invention has the following beneficial effects:

[0015] The above-mentioned suspension guide arm is provided with extension plates on both sides of the hole plate, so that the extension plates extend out of the guide arm body, thereby increasing the length of the axle mounting hole; improving the connection strength between the axle and the axle mounting hole, and when the axle deviates to the side, the above-mentioned extension plates can provide support force to prevent the axle from deviating to the side; furthermore, the provision of the extension plates also facilitates further fixed connection between the axle and the suspension guide arm by welding, clamps, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art.

[0017] Obviously, the drawings described below are only some specific embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without any creative work.

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the suspension guide arm in Example 1 of the present utility model.

[0019] Figure 2 This is a top view of the suspension guide arm in Example 1 of the present utility model.

[0020] Figure 3This is a side view of the suspension guide arm in Example 1 of the present utility model.

[0021] Figure 4 This is a schematic diagram of the three-dimensional structure of the suspension guide arm when a reinforcement plate is installed in Example 1 of the present invention.

[0022] Figure 5 This is a schematic diagram of the three-dimensional structure of the suspension guide arm at another angle when a reinforcement plate is installed in Example 1 of the present invention.

[0023] 1. Forearm body; 2. Rear arm body; 3. Folding plate; 4. Bolt; 5. Vertical plate; 6. Horizontal plate; 7. Extension plate; 8. Reinforcement plate. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0025] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

[0026] It should be noted that all directional indications in the embodiments of the present invention (such as front, back, inside, outside, up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0027] In addition, the terms "first," "second," and so on, used in this utility model are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0028] In this utility model, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0029] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0030] Example 1

[0031] This embodiment provides a suspension guide arm, which includes an arm body, an axle mounting hole is provided in the middle of the arm body, the axle mounting hole is used to install the axle, the axle mounting hole is a perforated plate, and the perforated plate extends to at least one side of both sides to form an extension plate, and the perforated plate and the extension plate are in contact with the axle.

[0032] When the suspension guide arm is in use, the axle is inserted into the axle mounting hole. Since extension plates are provided on both sides of the orifice plate and extend along the longitudinal direction of the axle, the extension plates fit onto the axle. This fit can be tight, but of course, some clearance can also be left. An extension plate is provided on at least one of the left and right sides of the orifice plate, so that the extension plate extends beyond the arm body of the guide arm, thereby increasing the length of the axle mounting hole. This improves the connection strength between the axle and the axle mounting hole. When the axle deviates to the side, the extension plate can provide support and prevent the axle from deviating to the side. Furthermore, when the axle and the arm body need to be fixed, the extension plate and the axle can be connected by welding, clamping, or other methods, thereby improving the convenience of fixing the axle.

[0033] Specifically, in this embodiment, the axle is a square axle. During use, a lateral force will be generated between the axle and the axle mounting hole. For this purpose, the hole plate includes vertical plates located on the front and rear sides of the square axle, and the extension plate extends from the vertical plates to at least one side of the left or right side.

[0034] More specifically, in this embodiment, the arm body can be an integrated arm body or a split arm body. When the arm body is in a split structure: the arm body includes a front arm body located at the front and a rear arm body located at the rear, and the rear of the front arm body and the front of the rear arm body are respectively provided with a front clamp and a rear clamp, and the front clamp and the rear clamp form the axle mounting hole, and the orifice plate is a front clamp and a rear clamp that are buckled together.

[0035] More specifically, when the arm body is formed by combining a front arm body and a rear arm body, the front and rear clamps each include an L-plate, which interlocks to form the axle mounting hole. To connect the front and rear arm bodies, the front and rear clamps can be connected in the following manner: each end of the L-plate is provided with an outwardly extending folding plate, each of which is provided with a mounting hole; the folding plates of the front and rear clamps are symmetrically arranged and connected by bolts passing through the mounting holes.

[0036] More specifically, in this embodiment, the L-plate includes a transverse plate and a vertical plate, and at least one of the vertical plates of the front clamp and the vertical plate of the rear clamp is provided with an extension plate extending along the axle direction, and the extension plate is in contact with the axle.

[0037] More specifically, in this embodiment, the folding plate serves as the bending plate at both ends of the L-plate and plays a major connecting role. In order to improve the connection strength between the folding plate and the L-plate, reinforcing plates 8 are provided at the bending parts of the folding plate and the L-plate, and the reinforcing plates 8 respectively connect the folding plate and the L-plate.

[0038] More specifically, since an angle is formed between the folding plate and the L-plate, a reinforcing plate 8 is provided at the angle. The reinforcing plate 8 is provided in a triangular shape, and two reinforcing edges of the reinforcing plate 8 respectively adhere to and fix the folding plate and the L-plate.

[0039] More specifically, in this embodiment, during the axle welding process, welding should be carried out along the axial direction of the axle, that is, the transverse direction of the guide arm, so as not to affect the mechanical strength of the axle. To this end: the edge of the extension plate in the extension direction of the axle is a transverse edge, and the transverse edge should be basically consistent with the longitudinal direction of the axle. The transverse edge is connected to the axle by welding.

[0040] More specifically, the forces acting on the axle include lateral forces or pressure from top to bottom. In order to avoid the weld affecting the strength of the axle, the transverse edges of the extension plate are longitudinally welded to the side faces of the axle. In order to achieve the above-mentioned welding method, the height of the extension plate can be set as follows: the height of the extension plate is lower than the height of the axle, and the transverse edges, i.e., the upper and lower edges, of the extension plate are both located inside the side faces of the axle. At this time, the transverse edges of the extension plate are adjacent to the front end face or the rear end face of the axle, and the front end face or the rear end face is the side face of the axle, and the transverse edges are connected to the upper and lower end faces of the axle, thereby welding the transverse edges to the front end face or the rear end face. Of course, it is also possible to set a strip hole along the extension direction on the extension plate, and weld the extension plate and the axle together directly in the strip hole. It should be noted that the above-mentioned welding seam should be distributed along the longitudinal direction of the axle, and its direction can be set at an angle.

[0041] Of course, the above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the utility model concept, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention and should be protected by the present invention.

Claims

1. A suspension guide arm, characterized in that: It includes an arm body, wherein the middle part of the arm body is provided with an axle mounting hole, wherein the axle mounting hole is used to mount the axle, and the axle mounting hole is a perforated plate. The orifice plate extends to at least one of the left side and the right side to form an extension plate, and the orifice plate and the extension plate are attached to the axle.

2. The suspension guide arm according to claim 1, wherein: The axle is a square axle, the orifice plate includes vertical plates located at the front and rear sides of the square axle, and the extension plate extends from the vertical plates to at least one of the left and right sides.

3. The suspension guide arm according to claim 2, wherein: The arm body includes a front arm body located at the front and a rear arm body located at the rear. The rear of the front arm body and the front of the rear arm body are respectively provided with a front clamp and a rear clamp. The front clamp and the rear clamp form the axle mounting hole, and the orifice plate is the front clamp and the rear clamp that are buckled together.

4. The suspension guide arm according to claim 3, wherein: The front hoop and the rear hoop both include L-plates, and the two L-plates are buckled together to form the axle mounting hole; Both ends of the L-plate are provided with outwardly extending folding plates, and mounting holes are provided on the folding plates; the folding plates of the front hoop and the rear hoop are symmetrically arranged and connected by bolts passing through the mounting holes.

5. The suspension guide arm according to claim 4, characterized in that: The L-plate includes a transverse plate and a vertical plate. At least one of the vertical plates of the front hoop and the vertical plates of the rear hoop is provided with an extension plate extending along the axle direction, and the extension plate is in contact with the axle.

6. The suspension guide arm according to claim 4, wherein: Reinforcing plates are provided at the bending positions of the folding plate and the L-plate, and the reinforcing plates are respectively connected to the folding plate and the L-plate.

7. The suspension guide arm according to claim 6, wherein: The reinforcing plate is arranged in a triangular shape, and two reinforcing edges of the reinforcing plate are respectively attached to and fixed to the folding plate and the L-plate.

8. The suspension guide arm according to claim 5, wherein: The side of the extension plate in the extending direction of the axle is a transverse side, and the transverse side is connected to the axle by welding.

9. The suspension guide arm according to claim 2, wherein: The transverse sides of the extension plate are longitudinally welded to the side surfaces of the axle.

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