Plate spring seat structure of trailer suspension

Abstract

The utility model provides a plate spring seat structure of a trailer suspension, which belongs to the technical field of plate spring accessories, and comprises a middle connecting seat and side connecting seats, the middle connecting seat clamps the middle part of a plate spring, the side connecting seats clamp the two sides of the plate spring, the middle connecting seat comprises a first connecting plate, a second connecting plate and a U-shaped bolt, the first connecting plate and the second connecting plate clamp the plate spring in the middle, mounting holes are formed in the four corners of the first connecting plate and the four corners of the second connecting plate, the U-shaped bolts penetrate through the mounting holes to fix the first connecting plate and the second connecting plate, the axle connecting seat is arranged on the face, away from the plate spring, of the first connecting plate, and the side face connecting seat comprises the U-shaped connecting plate and a third connecting plate. According to the plate spring fixing device, the center position of the plate spring is clamped through the middle connecting base, and then the two sides of the plate spring are clamped and fixed through the side face connecting bases, so that the plate spring can be fixed in all directions, and the plate spring pieces are prevented from sliding relatively in the using process of the plate spring.

Description

Technical Field

[0001] The utility model relates to the technical field of leaf spring accessories, in particular to a leaf spring seat structure of a trailer suspension. Background Art

[0002] Patent publication number CN209813655U discloses a leaf spring seat structure for a trailer suspension, which has the function of fixing a limiting spring and a lap plate through the outer side of a receiving plate, thereby tightening the plug rod to avoid the problem that when one of the plates of the leaf spring seat is damaged, it cannot be disassembled and replaced, resulting in the need to replace a new component of the trailer suspension leaf spring seat. However, in actual use, due to the heavy weight and long length of the trailer leaf spring, it is only fixed by the upper and lower fixed brackets in the middle position during use. During the shock absorption process, the longer leaf spring leaf is prone to relative sliding between the two ends of the leaf spring leaf during vibration, affecting the fixation of the leaf spring seat, and ultimately affecting the buffering and shock absorption effect of the leaf spring. Therefore, there is a need for a leaf spring seat structure that can be suitable for the long length of the trailer, which can firmly fix the leaf spring leaves while being suitable for the longer leaf spring of the trailer. Utility Model Content

[0003] The purpose of the utility model is to provide a leaf spring seat structure of a trailer suspension in view of the defects of the prior art. The leaf spring seat structure is divided into a middle connecting seat and two side connecting seats, so that the center position of the leaf spring is clamped by the middle connecting seat, and the two sides of the leaf spring are clamped and fixed by the side connecting seats, so that the leaf spring can be fixed in all directions to prevent relative sliding between the leaf spring leaves during use of the leaf spring.

[0004] In order to achieve the above purpose, the following technical solutions are adopted:

[0005] A leaf spring seat structure of a trailer suspension, comprising: an intermediate connecting seat and a side connecting seat, the intermediate connecting seat clamping the middle part of the leaf spring, the side connecting seat clamping the two sides of the leaf spring, the intermediate connecting seat comprising a first connecting plate, a second connecting plate and a U-shaped bolt, the first connecting plate and the second connecting plate clamp the leaf spring in the middle, the four corners of the first connecting plate and the second connecting plate are provided with mounting holes, the U-shaped bolt passes through the mounting holes to fix the first connecting plate and the second connecting plate, an axle connecting seat is provided on the side of the first connecting plate away from the leaf spring, the side connecting seat comprises a U-shaped connecting plate and a third connecting plate, the U-shaped connecting plate and the third connecting plate clamp the two ends of the leaf spring.

[0006] As a further preferred embodiment, connecting rods are provided at both ends of the U-shaped connecting plate, the connecting rods are provided with threads, mounting holes are provided at both ends of the third connecting plate, the connecting rods pass through the mounting holes of the third connecting plate, and locking nuts are provided on the connecting rods.

[0007] As a further preference, the height of the U-shaped connecting plate is less than or equal to the thickness of the leaf spring, and the length of the third connecting plate is greater than the width of the leaf spring.

[0008] As a further preferred embodiment, a non-slip pad is provided on the side of the U-shaped connecting plate facing the leaf spring, and a side of the non-slip pad facing the leaf spring is arc-shaped.

[0009] As further preferred, a buffer pad is further provided on a side of the second connecting plate facing the leaf spring, and a side of the buffer pad facing the leaf spring is arc-shaped.

[0010] As a further preference, the axle connecting seat is provided with a through hole, and the through hole and the first connecting plate are parallel to each other.

[0011] As a further preference, a reinforcing rib is provided on the side surface of the axle connecting seat, and a surface of the reinforcing rib adjacent to the axle connecting seat is fixedly connected to the first connecting plate.

[0012] As further preferred, the first connecting plate and the second connecting plate have the same length, the length of the first connecting plate is greater than the width of the leaf spring, and there are two U-shaped bolts, which are located on both sides of the leaf spring.

[0013] As a further preference, there are two side connecting seats, and the two side connecting seats are axially symmetrical with the middle connecting seat as the center line.

[0014] Compared with the prior art, the utility model has the following advantages and positive effects:

[0015] (1) The present application splits the leaf spring seat structure into a middle connecting seat and two side connecting seats, so that the center position of the leaf spring is clamped by the middle connecting seat, and the two sides of the leaf spring are clamped and fixed by the side connecting seats. In this way, the leaf spring can be fixed in all directions to prevent relative sliding between the leaf spring leaves during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0017] Figure 1 It is a stereogram of this application.

[0018] Figure 2 It is a three-dimensional diagram of the first connecting plate of the present application.

[0019] Figure 3 It is a three-dimensional diagram of the U-shaped connecting plate of the present application.

[0020] In the figure, 1. first connecting plate, 2. second connecting plate, 3. axle connecting seat, 4. U-shaped bolt, 5. U-shaped connecting plate, 6. third connecting plate, 7. connecting rod, 8. locking nut, 9. reinforcing rib, 10. leaf spring, 11. mounting hole, 12. through hole, 13. anti-slip pad. DETAILED DESCRIPTION

[0021] Example 1

[0022] In a typical implementation of the present invention, Figure 1-Figure 3 As shown, a leaf spring seat structure of a trailer suspension is proposed.

[0023] It includes: an intermediate connecting seat and a side connecting seat, the intermediate connecting seat clamps the middle part of the leaf spring 10, and the side connecting seat clamps the two sides of the leaf spring 10. The intermediate connecting seat includes a first connecting plate 1, a second connecting plate 2 and a U-shaped bolt 4. The first connecting plate 1 and the second connecting plate 2 clamp the leaf spring 10 in the middle to prevent the leaf spring 10 from moving. The four corners of the first connecting plate 1 and the second connecting plate 2 are provided with mounting holes 11. The U-shaped bolt 4 passes through the mounting holes 11 to fix the first connecting plate 1 and the second connecting plate 2. The first connecting plate 1 is provided with an axle connecting seat 3 on the side away from the leaf spring 10, which can facilitate the connection between the axle and the leaf spring 10. The side connecting seat includes a U-shaped connecting plate 5 and a third connecting plate 6. The U-shaped connecting plate 5 and the third connecting plate 6 clamp the two ends of the leaf spring 10.

[0024] like Figure 3 As shown, connecting rods 7 are provided at both ends of the U-shaped connecting plate 5, and threads are provided on the connecting rods 7. Mounting holes 11 are provided at both ends of the third connecting plate 6. The connecting rods 7 pass through the mounting holes 11 of the third connecting plate 6. Locking nuts 8 are provided on the connecting rods 7. The third connecting plate 6 is fixed to the U-shaped connecting plate 5 by the locking nuts 8. In this way, the two ends of the leaf spring 10 can be clamped and fixed by the U-shaped connecting plate 5 and the third connecting plate 6.

[0025] like Figure 1 As shown, the height of the U-shaped connecting plate 5 is less than or equal to the thickness of the leaf spring 10, and the length of the third connecting plate 6 is greater than the width of the leaf spring 10, so that the U-shaped connecting plate 5 and the third connecting plate 6 can clamp the two ends of the leaf spring 10 to prevent the leaf spring 10 from sliding between the leaf springs 10.

[0026] like Figure 3 As shown, an anti-skid pad 13 is provided on the side of the U-shaped connecting plate 5 facing the leaf spring 10. The side of the anti-skid pad 13 facing the leaf spring 10 is arc-shaped, which can better fit the arc-shaped surface of the leaf spring 10 and prevent relative sliding between the U-shaped connecting plate 5 and the leaf spring 10, making installation simple and convenient.

[0027] A buffer pad is also provided on the side of the second connecting plate 2 facing the leaf spring 10. The side of the buffer pad facing the leaf spring 10 is arc-shaped, which facilitates the second connecting plate 2 to be in close contact with the arc-shaped surface of the leaf spring 10, so as to better install and improve the shock absorption and buffering effects.

[0028] like Figure 2 As shown, the axle connecting seat 3 is provided with a through hole 12, and the through hole 12 is parallel to the first connecting plate 1, so that the through hole 3 is convenient for connection with the axle.

[0029] like Figure 1 As shown, a reinforcing rib 9 is provided on the side of the axle connecting seat 3, and a side of the reinforcing rib 9 adjacent to the axle connecting seat 3 is fixedly connected to the first connecting plate 1, thereby strengthening the connection between the axle connecting seat 3 and the first connecting plate 1 and preventing the axle connecting seat 3 from detaching from the first connecting plate 1.

[0030] like Figure 1 As shown, the first connecting plate 1 and the second connecting plate 2 have the same length, the length of the first connecting plate 1 is greater than the width of the leaf spring 10, there are two U-shaped bolts 4, and the two U-shaped bolts 4 are located on both sides of the leaf spring 10. In this way, the leaf spring 10 is clamped in the up and down directions by using the first connecting plate 1 and the second connecting plate 2, and the U-shaped bolts 4 on both sides can also clamp the front and back sides of the leaf spring 10.

[0031] like Figure 1 As shown, there are two side connection seats, and the two side connection seats are axially symmetrical with the middle connection seat as the center line.

[0032] In the technical solution of the present application, the seat structure of the leaf spring 10 is divided into an intermediate connecting seat and two side connecting seats, so that the center position of the leaf spring 10 is clamped by using the first connecting plate 1 and the second connecting plate 2 of the intermediate connecting seat, and then the first connecting plate 1 and the second connecting plate 2 are fixed by using the U-shaped bolts 4 and the locking nuts 8. The two U-shaped bolts 4 can also clamp the front and rear ends of the leaf spring 10 in the middle position, and finally the U-shaped connecting plate 5 and the third connecting plate 6 of the side connecting seat are used to clamp and fix the two sides of the leaf spring 10. In this way, the leaf spring 10 can be prevented from being fixed in all directions without penetrating and punching the leaf spring 10, and relative sliding between the leaf spring 10 leaves during use can be prevented, thereby affecting the shock-absorbing effect of the leaf spring 10.

[0033] Furthermore, if the leaf springs 10 of the entire leaf spring 10 are damaged during use, the damaged leaf springs 10 can be replaced by removing the locking nut 8 and the second connecting plate 2 and the third connecting plate 6, and the disassembly is simple and convenient.

[0034] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A leaf spring seat structure for a trailer suspension, It is characterized in that include: An intermediate connecting seat and a side connecting seat, the intermediate connecting seat clamps the middle part of the leaf spring, the side connecting seat clamps the two sides of the leaf spring, the intermediate connecting seat includes a first connecting plate, a second connecting plate and a U-shaped bolt, the first connecting plate and the second connecting plate clamp the leaf spring in the middle, the four corners of the first connecting plate and the second connecting plate are provided with mounting holes, the U-shaped bolt passes through the mounting holes to fix the first connecting plate and the second connecting plate, the first connecting plate is provided with an axle connecting seat on the side away from the leaf spring, the side connecting seat includes a U-shaped connecting plate and a third connecting plate, the U-shaped connecting plate and the third connecting plate clamp the two ends of the leaf spring.

2. A leaf spring seat structure for a trailer suspension as claimed in claim 1, It is characterized in that Connecting rods are provided at both ends of the U-shaped connecting plate, and threads are provided on the connecting rods. Mounting holes are provided at both ends of the third connecting plate, and the connecting rods pass through the mounting holes of the third connecting plate, and locking nuts are provided on the connecting rods.

3. A leaf spring seat structure of a trailer suspension as claimed in claim 1, It is characterized in that The height of the U-shaped connecting plate is less than or equal to the thickness of the leaf spring, and the length of the third connecting plate is greater than the width of the leaf spring.

4. A leaf spring seat structure for a trailer suspension as claimed in claim 1, It is characterized in that An anti-skid pad is provided on one side of the U-shaped connecting plate facing the leaf spring, and a side of the anti-skid pad facing the leaf spring is arc-shaped.

5. The leaf spring seat structure of a trailer suspension according to claim 1, It is characterized in that A buffer pad is further provided on one side of the second connecting plate facing the leaf spring, and the side of the buffer pad facing the leaf spring is arc-shaped.

6. A leaf spring seat structure of a trailer suspension as claimed in claim 1, It is characterized in that The axle connecting seat is provided with a through hole, and the through hole and the first connecting plate are parallel to each other.

7. A leaf spring seat structure for a trailer suspension as claimed in claim 1, It is characterized in that A reinforcing rib is provided on the side of the axle connecting seat, and a side of the reinforcing rib adjacent to the axle connecting seat is fixedly connected to the first connecting plate.

8. The leaf spring seat structure of a trailer suspension as claimed in claim 1, It is characterized in that The first connecting plate and the second connecting plate have the same length, the length of the first connecting plate is greater than the width of the leaf spring, and there are two U-shaped bolts, which are located on both sides of the leaf spring.

9. The leaf spring seat structure of a trailer suspension according to claim 1, It is characterized in that There are two side connection seats, and the two side connection seats are axially symmetrical with the middle connection seat as the center line.

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