Cab with auxiliary automatic locking safety door

Abstract

The utility model relates to a cab with an auxiliary automatic locking safety door, which comprises a cab body, a driving door is arranged on the side surface of the cab body, an auxiliary locking mechanism is arranged between the driving door and the cab body, the auxiliary locking mechanism comprises a first fixing plate, and an L-shaped rod is hinged on the first fixing plate. In the natural state, the free end of the horizontal section of the L-shaped rod abuts against the surface of the first fixing plate, a second fixing plate is fixedly connected to the outer surface of the driving door, a cross rod is welded to the second fixing plate, and the free end of the cross rod extends to the first fixing plate. A driver needs to unlock the auxiliary locking mechanism before opening a driving door, so that the attention of the driver in the door opening process is indirectly improved, the situations that the driver is killed when opening the door and an engineering truck is missed in a high place are effectively avoided, the safety of the driver is improved, and the device is suitable for industrial production and has wide application prospects. And the practicability is very high.

Description

Technical Field

[0001] This utility model belongs to the technical field of driver's cabs, and particularly relates to a driver's cab with an auxiliary automatic locking safety door. Background Technology

[0002] A patent entitled "A Hydraulic Lock for a Car Cab" is disclosed in the existing Chinese patent database. The application number is CN202122289112.1, and the application date is 2021-09-22. This hydraulic lock for a car cab relates to the field of hydraulic lock technology. It includes a housing and a cylinder top protrusion. A locking hook is movably connected to the surface of the housing. A movable shaft is located at the center of the housing surface. A collar is sleeved on the outside of the movable shaft, and the outside of the movable shaft is slidably connected to the locking hook. A hydraulic cylinder is fixedly connected to one side of the housing surface. A cylinder top protrusion is inserted into one side of the top of the housing surface. A locking plate shaft is penetrated through the center of the cylinder top protrusion. A locking spring is sleeved on the outside of the locking plate shaft. One end of the locking spring is fixedly connected to the cylinder top protrusion, and the other end of the locking spring is fixedly connected to the hydraulic cylinder. Movable blocks are penetrated through the top and bottom of the back side of the cylinder top protrusion. Auxiliary springs are fixedly connected to the top and bottom of the surfaces of the movable blocks, and the surfaces of the auxiliary springs are fixedly connected to the cylinder top protrusion. This allows for the installation of the cylinder top protrusion and facilitates its removal for maintenance.

[0003] In existing technologies, drivers often lack concentration when opening car doors, leading to door-opening accidents and accidents such as vehicles falling into gaps at heights, resulting in injuries and fatalities and posing significant safety hazards. Therefore, this paper aims to propose a cab with an auxiliary automatic locking safety door that can prevent drivers from opening the door at will. Before opening the door, the auxiliary locking mechanism needs to be unlocked to complete the door opening operation. This adds an auxiliary operation before opening the door, preventing drivers from opening the door at will when they are not paying attention and reducing the occurrence of door-opening accidents. Utility Model Content

[0004] The technical problem this utility model aims to solve is how to improve the safety of opening vehicle doors and avoid dangerous situations such as door-opening-and-kill. In order to improve its shortcomings, this utility model provides a driver's cab with an auxiliary automatic locking safety door.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0006] A driver's cab with an auxiliary automatic locking safety door includes a driver's cab body, a driver's door on the side of the driver's cab body, and an auxiliary locking mechanism between the driver's door and the driver's cab body. The auxiliary locking mechanism includes a first fixed plate fixed to the side of the driver's cab body, ear plates spaced laterally on the first fixed plate, a pin inserted between the ear plates, and an L-shaped rod hinged to the pin between the ear plates. In its natural state, the free end of the horizontal section of the L-shaped rod abuts against the surface of the first fixed plate. A second fixed plate is fixed to the outer surface of the driver's door, and a crossbar is welded to the second fixed plate. The free end of the crossbar extends to the first fixed plate. When the driver's door is closed, the free end of the crossbar is located inside the vertical section of the L-shaped rod.

[0007] Compared with the prior art, the beneficial effects of this utility model are: due to the setting of the auxiliary locking mechanism, the driver needs to unlock the auxiliary locking mechanism before opening the driver's door, which indirectly improves the driver's attention during the door opening process, thereby effectively avoiding door-opening accidents and the situation of engineering vehicles stepping into the air at high places, thus improving the safety of the driver. This device is suitable for industrial production and has strong practicality.

[0008] As a preferred embodiment, the cab body is equipped with a control component for driving the L-shaped lever to swing. The control component includes a miniature servo cylinder. A cavity for mounting the miniature servo cylinder is integrally formed within the cab body. A top block is fixed to the free end of the piston rod of the miniature servo cylinder, and the top block passes through the cab body and the first fixing plate. Control buttons for controlling the miniature servo cylinder are also provided within the cab body. This control component design allows the driver to swing the L-shaped lever from inside the vehicle, thereby opening the driver's door, avoiding the need to operate the L-shaped lever through the driver's door window, making operation more convenient.

[0009] As a preferred embodiment, a connecting hole is provided in the middle of the vertical section of the L-shaped rod, and the pin passes through the connecting hole and is connected to the L-shaped rod. The pin and the connecting hole are interference-fitted, so that the pin and the L-shaped rod swing synchronously.

[0010] As a preferred embodiment, a welding base plate is integrally formed on the surface of the second fixing plate, and the outer peripheral surface of the left free end of the crossbar is welded to the welding base plate.

[0011] As a preferred embodiment, both the first fixing plate and the second fixing plate are fixed to the cab body with slotted screws. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle.

[0014] Figure 3 This is a side view of the auxiliary locking mechanism in this utility model.

[0015] In the diagram: 1. Cab body, 2. Cab door, 3. First fixing plate, 4. Ear plate, 5. Pin, 6. L-shaped rod, 7. Second fixing plate, 8. Crossbar, 9. Miniature servo electric cylinder, 10. Cavity, 11. Top block, 12. Welded base plate, 13. Slotted screw. Detailed Implementation

[0016] The technical solution of this application will be further described below with reference to the accompanying drawings and embodiments.

[0017] like Figure 1-3 As shown, a cab with an auxiliary automatic locking safety door includes a cab body 1, a driver's door 2 on the side of the cab body 1, and an auxiliary locking mechanism between the driver's door 2 and the cab body 1. The auxiliary locking mechanism includes a first fixing plate 3 fixed to the side of the cab body 1, ear plates 4 horizontally spaced on the first fixing plate 3, and a pin 5 inserted between the ear plates 4. An L-shaped rod 6 is hinged to the pin 5 between the two ear plates 4. In its natural state, the free end of the horizontal section of the L-shaped rod 6 abuts against the surface of the first fixing plate 3. A second fixing plate 7 is fixed to the outer surface of the driver's door 2, and a crossbar 8 is welded to the second fixing plate 7. The free end of the crossbar 8 extends to the first fixing plate 3. When the driver's door 2 is closed, the free end of the crossbar 8 is located inside the vertical section of the L-shaped rod 6. The cab body 1 houses a control component for driving the L-shaped lever 6 to swing. This control component includes a miniature servo cylinder 9. A cavity 10 for mounting the miniature servo cylinder 9 is integrally formed within the cab body 1. A top block 11 is fixed to the free end of the piston rod of the miniature servo cylinder 9, passing through the cab body 1 and the first fixing plate 3. Control buttons for controlling the miniature servo cylinder 9 are located within the cab body 1. This control component allows the driver to swing the L-shaped lever 6 from inside the vehicle, thereby opening the driver's door 2, avoiding the need to operate the L-shaped lever 6 through the window of the driver's door 2, making operation more convenient. A connecting hole is provided in the middle of the vertical section of the L-shaped lever 6. A pin 5 passes through the connecting hole and connects to the L-shaped lever 6. The pin 5 and the connecting hole have an interference fit, allowing the pin 5 and the L-shaped lever 6 to swing synchronously. A welded base plate 12 is integrally formed on the surface of the second fixing plate 7, and the outer circumference of the left free end of the crossbar 8 is welded to the welded base plate 12. Both the first fixing plate 3 and the second fixing plate 7 are fixed to the cab body 1 by slotted screws 13.

[0018] The working process of this utility model is as follows: When the driver's door 2 is closed, the crossbar 8, which is integrally set with the driver's door 2, moves towards the cab body 1. When it moves to the first fixed plate 3, it presses the free end of the vertical section of the L-shaped rod 6, causing the L-shaped rod 6 to swing clockwise. Thus, when the door is closed, the crossbar 8 is located inside the L-shaped rod 6, and the L-shaped rod 6 returns to its initial state, with the upper end of the vertical section of the L-shaped rod 6 slightly protruding from the lower part of the crossbar 8. When the driver's door 2 is opened, due to the positional relationship between the upper end of the vertical section of the L-shaped rod 6 and the crossbar 8, when the crossbar 8 moves outward, it needs to push the L-shaped rod 6 to rotate counterclockwise. However, because the free end of the horizontal section of the L-shaped rod 6 is in contact with the surface of the first fixed plate 3, the L-shaped rod 6 cannot rotate counterclockwise, thus affecting the... The outward movement of the crossbar 8 creates a restriction, preventing the driver's door 2 from opening. At this point, the driver activates the micro servo cylinder 9 via the control buttons inside the vehicle, pushing the top block 11 outward from the cab body 1. This compresses the free end of the horizontal section of the L-shaped rod 6, causing the L-shaped rod 6 to swing clockwise. When the L-shaped rod 6 swings clockwise, its upper end rotates to below the crossbar 8, so that the free end of the vertical section of the L-shaped rod 6 no longer protrudes from the crossbar 8. At this point, the driver's door 2 can be opened. After opening the door, the driver resets the micro servo cylinder 9 via the control buttons, disconnects the power, and then the driver can get out of the vehicle and manually close the driver's door 2. This process effectively improves the driver's attention during the door opening process, thus effectively preventing door-opening accidents and situations where the construction vehicle steps into a hole at a high position.

[0019] This utility model is not limited to the above embodiments. Based on the technical solutions disclosed in this utility model, those skilled in the art can make some substitutions and modifications to some of the technical features without creative labor, and these substitutions and modifications are all within the protection scope of this utility model.

Claims

1. A driver's cab equipped with an auxiliary automatic locking safety door, comprising a driver's cab body (1), wherein a driver's door (2) is provided on the side of the driver's cab body (1), characterized in that: An auxiliary locking mechanism is provided between the driver's door (2) and the cab body (1). The auxiliary locking mechanism includes a first fixed plate (3) fixed to the side of the cab body (1). Ear plates (4) are arranged horizontally at intervals on the first fixed plate (3). A pin (5) is inserted between the ear plates (4). An L-shaped rod (6) is hinged on the pin (5) between the two ear plates (4). In the natural state, the free end of the horizontal section of the L-shaped rod (6) abuts against the surface of the first fixed plate (3). A second fixed plate (7) is fixed to the outer surface of the driver's door (2). A crossbar (8) is welded on the second fixed plate (7). The free end of the crossbar (8) extends to the first fixed plate (3). When the driver's door (2) is closed, the free end of the crossbar (8) is located inside the vertical section of the L-shaped rod (6).

2. The driver's cab with an auxiliary automatic locking safety door according to claim 1, characterized in that: The cab body (1) is equipped with a control component that drives the L-shaped rod (6) to swing. The control component includes a miniature servo cylinder (9). The cab body (1) is integrally equipped with a cavity (10) for mounting the miniature servo cylinder (9). The piston rod of the miniature servo cylinder (9) is fixedly connected to a top block (11). The top block (11) passes through the cab body (1) and the first fixing plate (3). The cab body (1) is equipped with a control button for controlling the miniature servo cylinder (9).

3. The driver's cab with an auxiliary automatic locking safety door according to claim 2, characterized in that: A connecting hole is provided in the middle of the vertical section of the L-shaped rod (6). The pin (5) passes through the connecting hole and is connected to the L-shaped rod (6). The pin (5) and the connecting hole are interference-fitted, so that the pin (5) and the L-shaped rod (6) swing synchronously.

4. A driver's cab with an auxiliary automatic locking safety door as described in claim 3, characterized in that: The second fixing plate (7) is integrally provided with a welding base plate (12), and the outer peripheral surface of the left free end of the crossbar (8) is welded to the welding base plate (12).

5. A driver's cab with an auxiliary automatic locking safety door according to any one of claims 1-4, characterized in that: Both the first fixing plate (3) and the second fixing plate (7) are fixed to the cab body (1) by slotted screws (13).

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