A semi-trailer side guard

Abstract

The utility model discloses a semi -hopper car technical field's a semi -hopper car side guardrail, including fixed plate, be equipped with support rod between the fixed plate, the fixed plate between fixedly connected with the limiting board, one side of support rod is equipped with first protective frame, one side of support rod is equipped with second protective frame, one side of second protective frame is equipped with fixed block, one side of fixed block is equipped with mounting block, one side fixed connection of first protective frame is equipped with mounting structure, be equipped with support rod between the fixed plate, be equipped with limiting board in fixed plate, constitute frame, then protect its water tank through first protective frame and second protective frame, and fixed block drives mounting block to close and open in mounting structure inside, has realized semi -hopper car side guardrail to its side guardrail open and close's function, has improved semi -hopper car side guardrail open maintenance water tank's convenience.

Description

Technical Field

[0001] This utility model belongs to the field of semi-trailer technology, specifically relating to a semi-trailer side guardrail. Background Technology

[0002] A semi-trailer is a trailer whose axle is located behind the vehicle's center of gravity (when the vehicle is evenly loaded) and equipped with a coupling device that transmits horizontal and vertical forces to the tractor. Semi-trailers are generally three-axle trailers, and they come in many types, including 11-meter stake semi-trailers, 13-meter stake semi-trailers, and low-flatbed semi-trailers. They are heavy-duty transport vehicles connected to the tractor unit via a towing pin.

[0003] The existing side guardrails for semi-trailers still have some defects. In most semi-trailers, the side guardrails are fixedly installed on one side of the frame. Most of the existing side guardrails are welded in one piece. When the water tank needs to be inspected, it needs to be repaired within the gap of the guardrail, which is very inconvenient. Therefore, we propose a new type of side guardrail for semi-trailers. Utility Model Content

[0004] The purpose of this utility model is to provide a side guardrail for a semi-trailer to solve the problem mentioned in the background art that the integrated welded side guardrail is inconvenient for water tank maintenance.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a semi-trailer side guardrail, including a fixing plate, a support rod between the fixing plates, a limit plate fixedly connected between the fixing plates, a first protective frame on one side of the support rod, a second protective frame on one side of the support rod, a fixing block on one side of the second protective frame, an installation block on one side of the fixing block, and an installation structure fixedly connected to one side of the first protective frame.

[0006] Preferably, the mounting structure has a limiting block inside, and a limiting rod is fixedly connected to the bottom of the limiting block.

[0007] Preferably, a connecting rod is fixedly connected to the top of the limiting block, and a limiting spring is provided on the surface of the connecting rod.

[0008] Preferably, a handle is fixedly connected to the top of the connecting rod, and a connecting block is provided on the surface of the connecting rod.

[0009] Preferably, the bottom of the mounting structure is provided with a support block, and the interior of the first protective frame and the second protective frame is provided with a first reinforcing rod.

[0010] Preferably, a mounting plate is provided on one side of the fixing plate, and a second reinforcing rod is fixedly connected to the bottom of the mounting plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. A frame is formed by supporting rods between the fixed plates and limiting plates inside the fixed plates. The water tank is then protected by the first and second protective frames. The fixed block drives the mounting block to close and open inside the installation structure, realizing the function of opening and closing the semi-trailer side guardrail and improving the convenience of opening the semi-trailer side guardrail to maintain the water tank.

[0012] 2. The limiting block drives the limiting rod, which fixes the mounting block. The limiting block is driven by the connecting rod, which in turn is driven by the handle. As the limiting block moves, the limiting spring is compressed. After the handle is released, the limiting spring causes the limiting block to spring back to its original position. This makes it convenient to open and close the semi-trailer side guardrail installation structure and to operate the semi-trailer side guardrail. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the semi-trailer side guardrail of this utility model; Figure 2 This is a schematic diagram of the overall side structure of the semi-trailer side guardrail of this utility model; Figure 3 This is a schematic diagram of the overall frame structure of the semi-trailer side guardrail of this utility model; Figure 4 This is a schematic diagram of the first and second protective frames of the semi-trailer side guardrail of this utility model. Figure 5 This is a schematic diagram of the installation structure of the side guardrail of the semi-trailer according to this utility model.

[0014] In the diagram: 1. Fixing plate; 2. Support rod; 3. Limiting plate; 4. First protective frame; 5. Second protective frame; 6. Fixing block; 7. Mounting block; 8. Mounting structure; 9. Limiting block; 10. Limiting rod; 11. Connecting rod; 12. Limiting spring; 13. Handle; 14. Connecting block; 15. Supporting block; 16. First reinforcing rod; 17. Mounting plate; 18. Second reinforcing rod. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-5This utility model provides a technical solution: a semi-trailer side guardrail, including a fixed plate 1, a support rod 2 between the fixed plates 1, a limiting plate 3 fixedly connected between the fixed plates 1, a first protective frame 4 on one side of the support rod 2, a second protective frame 5 on one side of the support rod 2, a fixing block 6 on one side of the second protective frame 5, an mounting block 7 on one side of the fixing block 6, and an installation structure 8 fixedly connected to one side of the first protective frame 4. The first protective frame 4 and the second protective frame 5 are closed and fixed by the installation structure 8. The first protective frame 4 and the second protective frame 5 are rotatably connected on the surface of the support rod 2 by a hinge. The installation structure 8 limits the mounting block 7 and the fixing block 6, so that the first protective frame 4 and the second protective frame 5 can be fixedly closed and opened.

[0017] Specifically, the mounting structure 8 has a limiting block 9 inside, and a limiting rod 10 is fixedly connected to the bottom of the limiting block 9. The mounting block 7 is limited and fixed by the limiting block 9 and the limiting rod 10.

[0018] Specifically, a connecting rod 11 is fixedly connected to the top of the limiting block 9, and a limiting spring 12 is provided on the surface of the connecting rod 11. The limiting block 9 is moved and restored to its original position by the connecting rod 11 and the limiting spring 12.

[0019] Specifically, a handle 13 is fixedly connected to the top of the connecting rod 11, and a connecting block 14 is provided on the surface of the connecting rod 11. The connecting rod 11 is driven to rise by the handle 13.

[0020] Specifically, the bottom of the mounting structure 8 is provided with a support block 15, and the interior of the first protective frame 4 and the second protective frame 5 is provided with a first reinforcing rod 16, which protects the interior of the first protective frame 4 and the second protective frame 5.

[0021] Specifically, a mounting plate 17 is provided on one side of the fixing plate 1, and a second reinforcing rod 18 is fixedly connected to the bottom of the mounting plate 17. The whole is installed and fixed by the mounting plate 17 and the second reinforcing rod 18.

[0022] In this embodiment, during use, the entire unit is fixed by the mounting plate 17 and the second reinforcing rod 18. The water tank of the semi-trailer is protected by the first protective frame 4, the second protective frame 5, and the first reinforcing rod 16. When the water tank needs to be inspected, the handle 13 is pulled. The handle 13 drives the connecting rod 11, the connecting rod 11 drives the limiting block 9, the limiting block 9 drives the limiting rod 10 to rise, and the limiting rod 10 disengages from the inside of the mounting block 7. The mounting block 7 drives the fixing block 6, and the fixing block 6 drives the second protective frame 5 to rotate on the hinge, so that the second protective frame 5 opens. During the rise of the limiting block 9, the limiting spring 12 is squeezed. After the handle 13 is released, the limiting spring 12 rebounds the limiting block 9 and the limiting rod 10 back to their original positions, and then the first protective frame 4 is opened.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A side guardrail for a semi-trailer, comprising a fixing plate (1), characterized in that: Support rods (2) are provided between the fixed plates (1), and limit plates (3) are fixedly connected between the fixed plates (1). A first protective frame (4) is provided on one side of the support rod (2), a second protective frame (5) is provided on one side of the support rod (2), a fixing block (6) is provided on one side of the second protective frame (5), an installation block (7) is provided on one side of the fixing block (6), and an installation structure (8) is fixedly connected to one side of the first protective frame (4).

2. The side guardrail for a semi-trailer according to claim 1, characterized in that: The mounting structure (8) is provided with a limiting block (9) inside, and a limiting rod (10) is fixedly connected to the bottom of the limiting block (9).

3. A side guardrail for a semi-trailer according to claim 2, characterized in that: The top of the limiting block (9) is fixedly connected to a connecting rod (11), and the surface of the connecting rod (11) is provided with a limiting spring (12).

4. A side guardrail for a semi-trailer according to claim 3, characterized in that: A handle (13) is fixedly connected to the top of the connecting rod (11), and a connecting block (14) is provided on the surface of the connecting rod (11).

5. A side guardrail for a semi-trailer according to claim 1, characterized in that: The bottom of the mounting structure (8) is provided with a support block (15), and the first protective frame (4) and the second protective frame (5) are provided with a first reinforcing rod (16).

6. A side guardrail for a semi-trailer according to claim 1, characterized in that: The fixing plate (1) has a mounting plate (17) on one side, and a second reinforcing rod (18) is fixedly connected to the bottom of the mounting plate (17).

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