A rear lower spring arm

Abstract

The invention belongs to the technical field of vehicle accessories, specifically a rear lower spring arm, comprising a left arm, a right arm and a back plate, the back plate being welded to the bottom of the left arm, the right arm being welded to the top of the back plate, the top of the left arm being integrally formed with a left arm inclined plate, the left side wall of the left arm inclined plate being provided with a left arm hole, and the top of the right arm being integrally formed with a right arm inclined plate. This novel rear lower spring arm can effectively reduce the number of parts and the overall weight, and reduce the process of pressing bushings through the combined use of accessories. After the steps are reduced, the cost can be effectively reduced. On the basis of fixing the left arm and the right arm with the back plate, a main inclined frame and a secondary inclined frame are additionally provided, and after the main shaft block and the secondary shaft block are installed with the main inclined frame and the secondary inclined frame, the main shaft block and the secondary shaft block are elastically connected by a spring, which can effectively improve the pressure relief and buffering capacity, improve the self-strain of the rear lower spring arm, and improve the stability.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle accessories, in particular to a rear lower spring arm. Background Art

[0002] A car is a power-driven, non-rail-borne vehicle with four or more wheels, mainly used for: carrying people and goods; towing vehicles carrying people and goods; and for special purposes.

[0003] In the current field of automobile suspension, chassis structural components play a key role in the performance of the vehicle. Among the rear suspension structural components, the rear lower spring arm is the most important structural component except the rear subframe. At present, the rear lower spring arm and the rear subframe are mostly assembled using a bushing assembly method. The commonly used structure is that the bushing is assembled at one end of the rear lower spring arm and then assembled to the rear subframe.

[0004] Currently, the traditional rear lower spring arm structure has many parts and is heavy overall. The assembly of the bushing requires a press-fit process, which is cumbersome and has high labor costs. In addition, the rear lower spring arm itself lacks effective internal support, lacks the ability to respond to external forces, and is easily deformed, resulting in reduced stability. Summary of the Invention

[0005] The object of the present invention is to provide a rear lower spring arm to solve the problems raised in the above-mentioned background art, namely, that the conventional rear lower spring arm structure has a large number of parts, is heavy overall, requires a press-fitting process for assembling the bushing, which is cumbersome and has high labor costs, and lacks effective internal support during use of the rear lower spring arm itself, resulting in a lack of resilience to external forces, easy deformation, and reduced stability.

[0006] The top of the left arm is connected to the secondary oblique frame through a pin, and the right side wall of the secondary oblique frame is connected to the secondary mounting buckle through a pin.

[0007] Preferably, the number of the hole ring, the main mounting buckle, the main oblique frame, the auxiliary oblique frame and the auxiliary mounting buckle is two.

[0008] Preferably, the outer diameter of the hole ring is the same as the inner diameter of the left arm hole and the right arm hole.

[0009] Preferably, the opening curvature of the left arm inclined plate and the right arm inclined plate are the same.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows: this type of rear lower spring arm can effectively reduce the number of parts through the combined use of accessories, adopt a different structure, eliminate the installation sleeve, and install the bushing on the rear subframe, thereby reducing the overall weight and reducing the press-fit bushing process. After the steps are reduced, the cost can be effectively reduced. On the basis of fixing the left arm and the right arm with a back plate, a main oblique frame and a secondary oblique frame are added, and after the main shaft block and the secondary shaft block are installed with the main oblique frame and the secondary oblique frame, the main shaft block and the secondary shaft block are elastically connected with the spring, which can effectively improve the pressure relief and buffering capacity, improve the self-strain of the rear lower spring arm, and improve stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the present invention;

[0012] Figure 2 It is a schematic diagram of the back side of the present invention;

[0013] Figure 3 It is an internal schematic diagram of the present invention.

[0014] In the figure: 100 left arm, 110 left arm inclined plate, 120 left arm hole, 130 hole ring, 200 right arm, 210 right arm inclined plate, 220 right arm hole, 300 back plate, 310 main mounting buckle, 320 main oblique frame, 330 main shaft block, 340 spring, 350 secondary shaft block, 360 secondary oblique frame, 370 secondary mounting buckle. DETAILED DESCRIPTION

[0015] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0016] The present invention provides a rear lower spring arm, which reduces the processing steps and increases the resistance through the combination of accessories. Figure 1-3 , comprising a left arm 100, a right arm 200 and a back plate 300;

[0017] Please refer again Figure 1 The top of the left arm 100 has a left arm inclined plate 110. Specifically, the top of the left arm 100 is integrally connected to the left arm inclined plate 110. The left side wall of the left arm inclined plate 110 is provided with a left arm hole 120. The opening curvature of the left arm inclined plate 110 and the right arm inclined plate 210 are the same. The left arm inclined plate 110 and the right arm inclined plate 210 are made of stainless steel.

[0018] Please refer again Figure 1 The bottom of the right arm 200 is fixedly installed with the top of the back plate 300. Specifically, the bottom of the left arm 100 is welded to the back plate 300, and the top of the back plate 300 is welded to the right arm 200. The top of the right arm 200 is integrally connected with the right arm inclined plate 210. The right side wall of the right arm inclined plate 210 is provided with a right arm hole 220. The inner walls of the left arm hole 120 and the right arm hole 220 are bonded with an annular ring 130. The inner diameters of the left arm hole 120 and the right arm hole 220 are the same, and the material of the annular ring 130 is a wear-resistant rubber ring.

[0019] Please refer again Figure 2-3 The inner side of the back plate 300 has a main mounting buckle 310. Specifically, the left side wall of the back plate 300 is fixedly connected to the main mounting buckle 310 by screws, and the right side wall of the main mounting buckle 310 is connected to the main oblique frame 320 by a pin. The bottom of the main oblique frame 320 is connected to the main shaft block 330 by a pin. The right side wall of the main shaft block 330 is welded with a spring 340, and the right side wall of the spring 340 is welded with a secondary shaft block 350. The top of the secondary shaft block 350 is connected to the secondary oblique frame 360 ​​by a pin. The right side wall of the secondary oblique frame 360 ​​is connected to the secondary mounting buckle 370 by a pin. The right side wall of the secondary mounting buckle 370 is fixedly connected to the left side wall of the left arm 100 by screws.

[0020] In specific use, first connect the left arm 100 carrying the left arm inclined plate 110 and the right arm 200 carrying the right arm inclined plate 210 together through the back plate 300, and open the left arm hole 120 and the right arm hole 220 on the surface of the left arm 100 and the right arm 200 respectively for external connection. It is necessary to glue the hole ring 130 inside the left arm hole 120 and the right arm hole 220. Then, install two main mounting buckles 310 on the inner side of the left arm 100 and cooperate with the two main inclined frames 320 for installation. The ends of the main inclined frames 320 are fixed to the sides of the left arm 100 and the right arm holes 120 and 220, respectively. The end is connected to the main shaft block 330, and two auxiliary mounting buckles 370 are installed on the inner side of the right arm 200, and are installed in conjunction with two auxiliary bevel frames 360. The ends of the auxiliary bevel frames 360 are connected to the secondary shaft block 350. Finally, the springs 340 are used to connect the two ends of the main shaft block 330 and the secondary shaft block 350. After being subjected to force, the bevel frames move their positions through the movable shaft blocks. When the position of the shaft blocks changes, they will be pulled by the connected springs 340. The springs 340 have a buffering effect, thereby improving stability.

[0021] Please refer again Figure 2-3In order to ensure the stability of force transmission and facilitate interaction, specifically, the number of the hole ring 130, the main mounting buckle 310, the main oblique frame 320, the auxiliary oblique frame 360 ​​and the auxiliary mounting buckle 370 is two.

[0022] Please refer again Figure 1 In order to facilitate the internalization of the hole ring 130 , specifically, the outer diameter of the hole ring 130 is the same as the inner diameter of the left arm hole 120 and the right arm hole 220 .

[0023] Although the present invention has been described above with reference to exemplary embodiments, various modifications may be made thereto and equivalent components may be substituted without departing from the scope of the present invention. In particular, the various features of the embodiments disclosed herein may be combined with one another in any manner, provided no structural conflicts exist. The omission of an exhaustive description of these combinations in this specification is solely for the sake of space and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. A rear lower spring arm, characterized in that: The invention comprises a left arm (100), a right arm (200) and a back plate (300), wherein the back plate (300) is welded to the bottom of the left arm (100), the right arm (200) is welded to the top of the back plate (300), the top of the left arm (100) is integrally connected with a left arm inclined plate (110), the left side wall of the left arm inclined plate (110) is provided with a left arm hole (120), and the top of the right arm (200) is provided with a left arm hole (120). The right arm inclined plate (210) is integrally formed and connected, the right side wall of the right arm inclined plate (210) is provided with a right arm hole (220), the left arm hole (120) and the inner circumference of the right arm hole (220) are bonded with a hole ring (130), the left side wall of the back plate (300) is fixedly connected with a main mounting buckle (310) by screws, and the right side wall of the main mounting buckle (310) is connected with a main inclined frame (320) by a pin shaft The bottom of the main inclined frame (320) is connected to the main shaft block (330) through a pin shaft, the right side wall of the main shaft block (330) is welded with a spring (340), the right side wall of the spring (340) is welded with a secondary shaft block (350), the top of the secondary shaft block (350) is connected to the secondary inclined frame (360) through a pin shaft, the right side wall of the secondary inclined frame (360) is connected to the secondary mounting buckle (370) through a pin shaft, and the right side wall of the secondary mounting buckle (370) is fixedly connected to the left side wall of the left arm (100) through a screw; the number of the hole ring (130), the main mounting buckle (310), the main inclined frame (320), the secondary inclined frame (360) and the secondary mounting buckle (370) is two; the outer diameter of the hole ring (130) is the same as the inner diameter of the left arm hole (120) and the right arm hole (220).

2. A rear lower spring arm according to claim 1, characterized in that: The opening curvatures of the left arm inclined plate (110) and the right arm inclined plate (210) are the same.

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