A special vehicle rear cargo box locking mechanism

Abstract

This utility model relates to the field of fixed lock technology, and in particular to a special vehicle rear cargo box locking mechanism, including a fixed seat and a limiting seat, which are connected to different rear cargo box doors. A first rotating shaft is fixedly connected to the fixed seat, and a locking plate is rotatably connected to the first rotating shaft. The locking plate cooperates with the limiting seat. The limiting seat has a through hole, and the locking plate has a limiting groove that communicates with the through hole. A limiting mechanism for fixing the locking plate is connected to the limiting seat. This utility model allows the limiting mechanism to separate from the limiting groove by pulling it. Then, by pulling the locking plate with a handle, the locking plate rotates to a certain angle and inserts into the limiting seat, cooperating with it. Releasing the limiting mechanism allows one end of it to pass through the through hole and insert into the limiting groove, thus limiting and fixing the locking plate and preventing relative sliding between the locking plate and the limiting seat due to vibration, thereby improving the locking effect.

Description

Technical Field

[0001] This utility model relates to the field of fixed lock technology, and in particular to a special vehicle rear box locking mechanism. Background Technology

[0002] Special-purpose vehicles refer to vehicles with special uses, functions, or structures, typically used in specific industries or fields, and do not fall under the category of ordinary civilian vehicles. Engineering special-purpose vehicles are used in construction projects, disaster relief, mining operations, etc. Crane transport vehicles are a common type of special-purpose vehicle. Due to their special operating environments and functional requirements, special-purpose vehicles have extremely high requirements for the safety, sealing, and reliability of their cargo box. The cargo box locking mechanism is a key component for ensuring the safety of onboard equipment, materials, or personnel; its performance directly affects the vehicle's overall protective capabilities and mission execution efficiency.

[0003] Common locking mechanisms are mostly high-strength metal buckles and pins, which are locked manually or by lever mechanism. During vehicle operation, the vibration generated is transmitted to the locking mechanism, which can easily cause the locking mechanism to loosen, thereby reducing the locking effect. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies where vibrations are transmitted to the locking mechanism, easily causing the locking mechanism to loosen and thus reducing the locking effect. Therefore, a special vehicle rear box locking mechanism is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A special vehicle rear cargo box locking mechanism is designed, including a fixed seat and a limiting seat. The fixed seat and the limiting seat are connected to different rear cargo box doors. A first rotating shaft is fixedly connected to the fixed seat, and a locking plate is rotatably connected to the first rotating shaft. The locking plate cooperates with the limiting seat. A through hole is opened on the limiting seat, and a limiting groove is opened on the locking plate, which communicates with the through hole. A limiting mechanism for fixing the locking plate is connected to the limiting seat.

[0006] Preferably, a handle is fixedly connected to the locking plate.

[0007] Preferably, the handle is fitted with an anti-slip sleeve.

[0008] Preferably, the limiting mechanism includes two symmetrically arranged mounting blocks, which are fixedly connected to the limiting seat. A second rotating shaft is fixedly connected between the two mounting blocks. An insert plate is rotatably connected to the second rotating shaft. One end of the insert plate passes through a through hole and extends into the limiting groove. A spring is fixedly connected to the bottom end of the insert plate, and one end of the spring is fixedly connected to the bottom end of the limiting seat.

[0009] Preferably, a pressure plate is fixedly connected to the insert plate, and the pressure plate has a strip-shaped hole.

[0010] Preferably, the pressure plate is inclined downwards away from the insertion plate.

[0011] The special vehicle rear cargo box locking mechanism proposed in this utility model has the following advantages: By pulling the limiting mechanism, the limiting mechanism is separated from the limiting groove. Then, by pulling the handle, the locking plate is rotated. After the locking plate rotates to a certain angle, it is inserted into the limiting seat and cooperates with the limiting seat. Then, the limiting mechanism is released. One end of the limiting mechanism passes through the through hole and is inserted into the limiting groove to limit and fix the locking plate, so as to avoid relative sliding between the locking plate and the limiting seat due to vibration and improve the locking effect. Attached Figure Description

[0012] Figure 1 This utility model provides a structural schematic diagram of a locking mechanism for the rear cargo box of a special vehicle. Figure 1 ; Figure 2 This utility model provides a structural schematic diagram of a locking mechanism for the rear cargo box of a special vehicle. Figure 2 ; Figure 3 This is a schematic diagram of the connection between the limiting seat and the limiting mechanism in a special vehicle rear box locking mechanism proposed in this utility model. Figure 4 This is a cross-sectional structural diagram showing the connection between the limiting seat and the limiting mechanism in a special vehicle rear box locking mechanism proposed in this utility model.

[0013] In the diagram: 1. Rear door; 2. Fixed seat; 3. Limiting seat; 4. First rotating shaft; 5. Locking plate; 6. Handle; 7. Anti-slip sleeve; 8. Through hole; 9. Limiting groove; 10. Limiting mechanism; 101. Mounting block; 102. Second rotating shaft; 103. Insert plate; 104. Spring; 105. Pressure plate; 106. Strip hole. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0015] Example 1: Refer to Figure 1-3A special vehicle rear cargo box locking mechanism includes a fixed seat 2 and a limiting seat 3, which are connected to different rear cargo box doors 1. A first rotating shaft 4 is fixedly connected to the fixed seat 2, and a locking plate 5 is rotatably connected to the first rotating shaft 4. The locking plate 5 cooperates with the limiting seat 3. A handle 6 is fixedly connected to the locking plate 5, and an anti-slip sleeve 7 is sleeved on the handle 6. The anti-slip sleeve 7 is a rubber sleeve. A through hole 8 is opened on the limiting seat 3, and a limiting groove 9 is opened on the locking plate 5, which communicates with the through hole 8. A limiting mechanism 10 for fixing the locking plate 5 is connected to the limiting seat 3.

[0016] Work process: When locking the rear compartment, pull the limiting mechanism 10 to separate it from the limiting groove 9. Then, pull the locking plate 5 to rotate via the handle 6. The anti-slip sleeve 7 increases the friction between the hand and the handle 6, making it less likely to slip when pulling. After the locking plate 5 rotates to a certain angle, it is inserted into the limiting seat 3 and cooperates with it. Then, release the limiting mechanism 10. One end of the limiting mechanism 10 passes through the through hole 8 and is inserted into the limiting groove 9 to limit and fix the locking plate 5, preventing relative sliding between the locking plate 5 and the limiting seat 3 due to vibration, thus improving the locking effect.

[0017] Example 2: When the locking plate 5 is limited and fixed by the limiting mechanism 10, it is inconvenient to fix it quickly. Refer to... Figure 3-4 As another preferred embodiment of this utility model, the difference from embodiment 1 is that the limiting mechanism 10 includes two symmetrically arranged mounting blocks 101, which are fixedly connected to the limiting seat 3. A second rotating shaft 102 is fixedly connected between the two mounting blocks 101. An insert plate 103 is rotatably connected to the second rotating shaft 102. One end of the insert plate 103 passes through the through hole 8 and extends into the limiting groove 9. A spring 104 is fixedly connected to the bottom end of the insert plate 103. One end of the spring 104 is fixedly connected to the bottom end of the limiting seat 3. A pressure plate 105 is fixedly connected to the insert plate 103. The pressure plate 105 is inclined downward in the direction away from the insert plate 103. A strip hole 106 is opened on the pressure plate 105. When the locking plate 5 is inserted into the limiting seat 3, the pressure plate 105 is pressed down. The pressure plate 105 drives the insert plate 103 to rotate around the second rotating shaft 102. After the insert plate 103 rotates at a certain angle, it separates from the through hole 8. At the same time, the insert plate 103 rotates and squeezes the spring 104. The spring 104 generates elastic force after being compressed. After the locking plate 5 is inserted into the limiting seat 3, the insert plate 103 is released. Under the action of the elastic force of the spring 104, the insert plate 103 rotates and resets. After the insert plate 103 resets, it limits and fixes the locking plate 5, which facilitates the quick fixation of the locking plate 5.

[0018] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A locking mechanism for the rear cargo box of a special vehicle, comprising a fixed seat (2) and a limiting seat (3), wherein the fixed seat (2) and the limiting seat (3) are connected to different rear cargo box doors (1), characterized in that, in: A first rotating shaft (4) is fixedly connected to the fixed base (2), and a locking plate (5) is rotatably connected to the first rotating shaft (4). The locking plate (5) cooperates with the limiting base (3). A through hole (8) is opened on the limiting base (3), and a limiting groove (9) is opened on the locking plate (5). The limiting groove (9) communicates with the through hole (8). A limiting mechanism (10) for fixing the locking plate (5) is connected to the limiting base (3).

2. The special vehicle rear cargo box locking mechanism according to claim 1, characterized in that, A handle (6) is fixedly connected to the locking plate (5).

3. The special vehicle rear cargo box locking mechanism according to claim 2, characterized in that, The handle (6) is fitted with an anti-slip sleeve (7).

4. The special vehicle rear cargo box locking mechanism according to claim 1, characterized in that, The limiting mechanism (10) includes two symmetrically arranged mounting blocks (101), which are fixedly connected to the limiting seat (3). A second rotating shaft (102) is fixedly connected between the two mounting blocks (101). A plug plate (103) is rotatably connected to the second rotating shaft (102). One end of the plug plate (103) passes through the through hole (8) and extends into the limiting groove (9). A spring (104) is fixedly connected to the bottom end of the plug plate (103). One end of the spring (104) is fixedly connected to the bottom end of the limiting seat (3).

5. The special vehicle rear cargo box locking mechanism according to claim 4, characterized in that, A pressure plate (105) is fixedly connected to the insert plate (103), and a strip hole (106) is provided on the pressure plate (105).

6. The special vehicle rear cargo box locking mechanism according to claim 5, characterized in that, The pressure plate (105) is inclined downward in the direction away from the insert plate (103).

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