A semi-trailer suspension structure that effectively reduces wear

Abstract

This utility model discloses a semi-trailer suspension structure that effectively reduces wear, including a suspension structure body. A connecting block is welded to the surface of the suspension structure body, and an oil injection hole is formed on the surface of the connecting block. A sealing plug is inserted into the surface of the oil injection hole. A fixing plate is welded to the bottom of the inner cavity of the sealing plug. Telescopic rods are bolted to both sides of the fixing plate. A spring is sleeved on the surface of the telescopic rod. A sliding plate is bolted to one side of the spring, and an insert rod is bolted to the side of the sliding plate. A connecting rod is welded to the surface of the sliding plate, and a lever is bolted to the top of the connecting rod through to the outside of the sealing plug. Applied in the field of semi-trailer technology, this utility model facilitates the injection of lubricating oil into the suspension structure body through the oil injection hole, reducing the wear of the suspension structure body. The sealing plug facilitates the sealing treatment of the oil injection hole, preventing the lubricating oil inside the oil injection hole from leaking.

Description

Technical Field

[0001] This utility model belongs to the field of semi-trailer technology, and specifically relates to a semi-trailer suspension structure that effectively reduces wear. Background Technology

[0002] The suspension system of a semi-trailer is the general term for the complete set of devices that connect the semi-trailer frame to the axle. The vehicle's support force, braking force, driving force, etc. are all transmitted through the suspension system, which can also reduce the impact of rough roads on the vehicle and ensure the vehicle's stability.

[0003] Existing suspension structures are typically connected to the vehicle during use. However, in actual use, the following problems exist: during the connection process, the vehicle's movement can easily cause friction between the suspension structure and the vehicle, leading to wear and tear over time. To address these issues, we propose a semi-trailer suspension structure that effectively reduces wear. Utility Model Content

[0004] The purpose of this utility model is to provide a semi-trailer suspension structure that effectively reduces wear. Its advantages are that it reduces the wear of the suspension structure and improves the service life of the suspension structure.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a semi-trailer suspension structure that effectively reduces wear, comprising a suspension structure body, a connecting block welded to the surface of the suspension structure body, an oil injection hole opened on the surface of the connecting block, and a sealing plug inserted into the surface of the oil injection hole.

[0006] The above technical solution allows for the injection of lubricating oil into the suspension structure body through the oil injection hole, reducing the wear of the suspension structure body. The sealing plug facilitates the sealing of the oil injection hole, preventing the leakage of lubricating oil inside the oil injection hole and also preventing dust from entering.

[0007] The present invention is further configured such that a fixing plate is welded to the bottom of the inner cavity of the sealing plug, and telescopic rods are bolted to both sides of the fixing plate. A spring is sleeved on the surface of the telescopic rod, a sliding plate is bolted to one side of the spring, an insertion rod is bolted to the side of the sliding plate, a connecting rod is welded to the surface of the sliding plate, and a lever is bolted to the top of the connecting rod through to the outside of the sealing plug.

[0008] The above technical solution utilizes springs, telescopic rods, sliding plates, connecting rods, insert rods, and levers to facilitate the limiting and fixing of the sealing plug, preventing it from falling off during use.

[0009] The present invention is further configured such that insertion holes are provided on both sides of the inner cavity of the oil injection hole, and one side of the insertion rod is inserted into the inner cavity of the insertion hole.

[0010] The above technical solution facilitates the insertion of the insertion rod through the insertion hole.

[0011] The present invention is further configured such that a groove is provided at the bottom of the inner cavity of the sealing plug, and the bottom of the sliding plate is slidably connected to the inner cavity of the groove.

[0012] The above technical solution improves the stability of the sliding plate by using the groove.

[0013] The present invention is further configured such that a through groove is formed on the surface of the sealing plug, and the two sides of the connecting rod are fitted and connected to the inner wall of the through groove.

[0014] The above technical solution improves the stability of the connecting rod's sliding by using a through groove.

[0015] In summary, this utility model has the following beneficial effects:

[0016] 1. The oil injection hole facilitates the injection of lubricating oil into the suspension structure body, reducing the wear of the suspension structure body. The sealing plug facilitates the sealing of the oil injection hole, preventing the lubricating oil from leaking inside the oil injection hole and also preventing dust from entering.

[0017] 2. The spring, telescopic rod, sliding plate, connecting rod, insertion rod, and lever plate facilitate the limiting and fixing of the sealing plug, preventing it from falling off during use. The insertion hole facilitates the insertion of the insertion rod, the sliding groove improves the sliding stability of the sliding plate, and the through groove improves the sliding stability of the connecting rod. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the overall structure of the sealing plug of this utility model;

[0020] Figure 3 This is a cross-sectional view of the overall structure of the sealing plug of this utility model.

[0021] Reference numerals in the attached drawings: 1. Suspension structure body; 2. Connecting block; 3. Telescopic rod; 4. Oil injection hole; 5. Insertion hole; 6. Paddle plate; 7. Sealing plug; 8. Fixing plate; 9. Sliding plate; 10. Connecting rod; 11. Insertion rod; 12. Spring. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings.

[0023] Example 1:

[0024] refer to Figure 1-3 A semi-trailer suspension structure that effectively reduces wear includes a suspension structure body 1, a connecting block 2 welded to the surface of the suspension structure body 1, an oil injection hole 4 opened on the surface of the connecting block 2, and a sealing plug 7 inserted into the surface of the oil injection hole 4.

[0025] Example 2:

[0026] refer to Figure 1-3 A semi-trailer suspension structure that effectively reduces wear includes a fixing plate 8 welded to the bottom of the inner cavity of a sealing plug 7. Telescopic rods 3 are bolted to both sides of the fixing plate 8. A spring 12 is sleeved on the surface of the telescopic rod 3. A sliding plate 9 is bolted to one side of the spring 12. An insert rod 11 is bolted to the side of the sliding plate 9. A connecting rod 10 is welded to the surface of the sliding plate 9. A lever 6 is bolted to the top of the connecting rod 10 through to the outside of the sealing plug 7. Through the spring 12, telescopic rod 3, sliding plate 9, connecting rod 10, insert rod 11, and lever 6, the sealing plug 7 is easily limited and fixed, preventing the sealing plug 7 from falling off during use.

[0027] Furthermore, insertion holes 5 are provided on both sides of the inner cavity of the oil filling hole 4. One side of the insertion rod 11 is inserted into the inner cavity of the insertion hole 5, and the insertion hole 5 facilitates the insertion of the insertion rod 11.

[0028] Furthermore, a groove is provided at the bottom of the inner cavity of the sealing plug 7, and the bottom of the sliding plate 9 is slidably connected to the inner cavity of the groove. The groove improves the sliding stability of the sliding plate 9.

[0029] Furthermore, a through groove is provided on the surface of the sealing plug 7, and the two sides of the connecting rod 10 are attached to the inner wall of the through groove. The through groove improves the stability of the sliding of the connecting rod 10.

[0030] Brief description of usage: First, as follows Figure 1-3 As shown, this is the state after the oil filling hole 4 is sealed. When it is necessary to inject lubricating oil into the inner cavity of the oil filling hole 4, the user moves the lever 6. The lever 6 drives the connecting rod 10 to move, and the connecting rod 10 drives the sliding plate 9 to move. The sliding plate 9 drives the insertion rod 11, the spring 12, and the telescopic rod 3 to retract and move. When the insertion rod 11 retracts and moves away from the inner cavity of the insertion hole 5, the limiting pressure of the sealing plug 7 is eliminated. The user can then remove the sealing plug 7 and inject lubricating oil into the inner cavity of the oil filling hole 4.

[0031] It should be noted that parts have a lifespan and can be replaced during regular maintenance when they no longer meet performance requirements. Deterioration in performance due to prolonged use of parts is not a design defect of this application.

[0032] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A semi-trailer suspension structure effective to reduce wear, comprising a suspension structure body (1), characterized in that: The surface of the suspension structure body (1) is welded with a connecting block (2), the surface of the connecting block (2) is provided with an oil injection hole (4), and a sealing plug (7) is inserted into the surface of the oil injection hole (4).

2. A semi-trailer suspension structure effective to reduce wear as claimed in claim 1, characterized in that: A fixing plate (8) is welded to the bottom of the inner cavity of the sealing plug (7), and telescopic rods (3) are bolted to both sides of the fixing plate (8).

3. A semi-trailer suspension structure effective to reduce wear as claimed in claim 2, wherein: A spring (12) is fitted on the surface of the telescopic rod (3), and a sliding plate (9) is bolted to one side of the spring (12).

4. A semi-trailer suspension structure effective to reduce wear as claimed in claim 3, wherein: A plug rod (11) is bolted to the side of the sliding plate (9), and a connecting rod (10) is welded to the surface of the sliding plate (9).

5. A semi-trailer suspension structure effective to reduce wear as claimed in claim 4 wherein: The top of the connecting rod (10) extends through to the outside of the sealing plug (7) and is bolted with a lever (6).

6. A semi-trailer suspension structure for effectively reducing wear according to claim 4, characterized in that: The oil injection hole (4) has insertion holes (5) on both sides of its inner cavity, and one side of the insertion rod (11) is inserted into the inner cavity of the insertion hole (5).

7. A semi-trailer suspension structure for effectively reducing wear according to claim 3, characterized in that: The bottom of the inner cavity of the sealing plug (7) is provided with a sliding groove, and the bottom of the sliding plate (9) is slidably connected to the inner cavity of the sliding groove.

8. A semi-trailer suspension structure for effectively reducing wear according to claim 4, characterized in that: The sealing plug (7) has a through groove on its surface, and the two sides of the connecting rod (10) are attached to the inner wall of the through groove.

Images