High-safety cab

Abstract

The utility model relates to a high-safety cab which comprises a cab body, a horizontal sliding door is connected to the side face of the cab body in a sliding mode, a sliding rail is arranged on a bottom plate of the cab body, a roller assembly is arranged below the horizontal sliding door and comprises a frame body, and a limiting ring body is integrally arranged on the bottom face of the frame body. A center shaft penetrates through the roller body, the two ends of the center shaft are connected with a set of L-shaped rods arranged in a mirror image mode, the upper ends of the vertical sections of the two L-shaped rods are connected with a transverse plate through bolts, a protruding column is arranged on the transverse plate, and a compression spring is connected to the protruding column in a sleeved mode. When the horizontal sliding door moves, the compression amount of the compression spring can be changed along with different stress of the rolling wheel assembly, so that the stability of the horizontal sliding door during moving is improved, the horizontal sliding door and the joint of the horizontal sliding door and the upper end of a cab are prevented from being damaged due to overlarge stress, and the device is suitable for industrial production and has very high practicability.

Description

Technical Field

[0001] This utility model belongs to the technical field of driver's cabs, and particularly relates to a highly safe driver's cab. Background Technology

[0002] A patent titled "A Safe Cockpit" is disclosed in the existing Chinese patent database, with application number CN201720752856.3 and application date of 2017-06-27. The device includes a frame-structured cabin shell. A guide groove is provided on the upper edge of the side of the cabin shell, and a horizontal sliding door is embedded within the guide groove. A sliding rail for opening and closing the horizontal sliding door is laid on the bottom plate of the cabin shell corresponding to the guide groove. The sliding rail is inclined upwards from the front of the cabin shell along the back. Because the sliding rail is inclined upwards from the front of the cabin shell along the back, the horizontal sliding door automatically closes along the rail under the action of gravity, preventing the driver from forgetting to close the door due to carelessness and preventing the driver from falling out of the cockpit during operation, thus ensuring the safety of the driver.

[0003] In the aforementioned prior art, the inclined setting of the sliding rail causes the horizontal sliding door to be subjected to compressive force in the vertical direction during the opening process, which may lead to damage to the horizontal sliding door itself or damage to the guide groove on the upper edge of the cabin side. Therefore, this paper aims to propose a highly safe cab with an adaptively adjustable roller assembly at the bottom of the horizontal sliding door. The roller assembly is balanced by springs to balance the force on the roller assembly as its position changes during movement, thereby avoiding damage to the horizontal sliding door and the connection point with the upper end of the cab due to excessive force. Utility Model Content

[0004] The technical problem this invention aims to solve is how to reduce the relative force between the horizontal sliding door and the top and bottom of the cab body during the opening and closing process, thereby avoiding damage to the horizontal sliding door. To improve its shortcomings, this invention provides a highly safe cab.

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

[0006] A high-safety driver's cab includes a cab body with a frame structure. A horizontal sliding door is slidably connected to the side of the cab body. An upwardly inclined slide rail is provided on the cab body floor plate below the horizontal sliding door. A roller assembly is provided below the horizontal sliding door. The roller assembly includes a frame integrally welded to the bottom of the horizontal sliding door. A limit ring is integrally provided on the bottom surface of the frame. It also includes a roller body. A central shaft runs through the roller body. A set of mirror-arranged L-shaped rods are connected to both ends of the central shaft. A horizontal plate is bolted to the upper end of the vertical section of the two L-shaped rods. A protruding post is provided on the horizontal plate. A compression spring is sleeved on the protruding post. The upper end of the compression spring abuts against the top of the limit ring, and the lower end of the compression spring abuts against the upper surface of the horizontal plate.

[0007] Compared with the prior art, the beneficial effects of this utility model are as follows: Through the adaptive adjustment of the roller assembly, during the opening or closing of the horizontal sliding door along the inclined slide rail, the compression spring will change its compression amount according to the different forces on the roller assembly, thereby improving the stability of the horizontal sliding door during movement, avoiding damage to the horizontal sliding door and the connection with the upper end of the cab due to excessive force, and the horizontal sliding door will automatically close along the slide rail under the action of gravity, preventing the driver from forgetting to close the door due to carelessness, preventing the driver from falling from the cab during operation, and ensuring the safety of the driver's life. This device is suitable for industrial production and has strong practicality.

[0008] As a preferred embodiment, the slide rail is provided with a number of trapezoidal protrusions at intervals, and the right end face of the protrusion at the end of the slide rail is configured as follows.

[0009] As a preferred embodiment, rubber strips are embedded in the left side edge of the horizontal sliding door and the corresponding side edge of the driver's cab body.

[0010] As a preferred embodiment, a limiting block is provided above the surface of the cab body to prevent the horizontal sliding door from sliding out.

[0011] As a preferred embodiment, both ends of the central shaft are threaded sections, and the free ends of the horizontal sections of the L-shaped rod are provided with internal threads. The horizontal sections of the L-shaped rod are screwed to the free ends of the central shaft. 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] In the diagram: 1. Cab body; 2. Horizontal sliding door; 3. Slide rail; 4. Roller assembly; 401. Frame; 402. Limiting ring; 403. Roller body; 404. Central shaft; 405. L-shaped rod; 406. Horizontal plate; 407. Protruding column.

[0015] 408 Compression spring, 5 Protrusion, 6 Limiting block, 7 Rubber strip. 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 1-2 As shown, a high-safety driver's cab includes a cab body 1 with a frame structure. A horizontal sliding door 2 is slidably connected to the side of the cab body 1. The sliding connection between the upper end of the horizontal sliding door 2 and the cab body 1 is achieved through horizontal guide rails and pulleys. An upwardly inclined slide rail 3 is provided on the bottom plate of the cab body 1 below the horizontal sliding door 2. The slide rail 3 is inclined upwards from the front to the rear of the vehicle. A roller assembly 4 is provided below the horizontal sliding door 2. The roller assembly 4 includes a frame integrally welded to the lower part of the horizontal sliding door 2. 401. A limiting ring 402 is integrally provided on the bottom surface of the frame 401. It also includes a roller body 403. A central shaft 404 passes through the roller body 403. A set of mirror-arranged L-shaped rods 405 are connected to both ends of the central shaft 404. A horizontal plate 406 is bolted to the upper end of the vertical section of the two L-shaped rods 405. A protruding post 407 is provided on the horizontal plate 406. A compression spring 408 is sleeved on the protruding post 407. The upper end of the compression spring 408 abuts against the top of the limiting ring 402, and the lower end of the compression spring 408 abuts against the upper surface of the horizontal plate 406.

[0018] Specifically, the slide rail 3 is provided with several trapezoidal protrusions 5 at intervals, and the right end face of the protrusion 5 at the end of the slide rail 3 is set as a vertical surface. The left inclined surface of the protrusion 5 prevents the horizontal sliding door 2 from automatically opening due to inertia during vehicle movement, while the right inclined surface of the protrusion 5 prevents the horizontal sliding door 2 from closing too quickly due to its own weight, thus avoiding a high-speed impact on the cab body 1 and causing damage to the horizontal sliding door 2 and the cab body 1. The right end face of the protrusion 5 at the end of the slide rail 3 is set as a vertical surface, so that when the horizontal sliding door 2 moves to the rightmost end, it will be stationary because the roller assembly 4 is against the vertical surface. When closing, the driver needs to apply a certain force to the horizontal sliding door 2 so that the roller assembly 4 passes over the vertical surface, and the horizontal sliding door 2 closes by its own weight.

[0019] Specifically, rubber strips 7 are embedded in the left edge of the horizontal sliding door 2 and the corresponding edge of the cab body 1. The rubber strips 7 are designed so that when the horizontal sliding door 2 closes due to gravity, the edge of the horizontal sliding door 2 flexibly impacts the corresponding edge of the cab body 1, thereby avoiding a hard impact on the cab body 1. At the same time, the rubber strips 7 serve a sealing function.

[0020] Specifically, a limiting block 6 is provided above the surface of the cab body 1 to prevent the horizontal sliding door 2 from sliding out. The limiting block 6 prevents the horizontal sliding door 2 from sliding out of the slide rail 3, limits the sliding stroke of the horizontal sliding door 2, and improves safety.

[0021] Specifically, both ends of the central shaft 404 are threaded sections, and the free ends of the horizontal sections of the L-shaped rod 405 are provided with internal threads. The horizontal sections of the L-shaped rod 405 are screwed to the free ends of the central shaft 404.

[0022] The working process of this utility model is as follows: The driver moves the horizontal sliding door 2 to the right, so that the horizontal sliding door 2 opens. The roller assembly 4 at the bottom of the horizontal sliding door 2 moves along the inclined direction of the slide rail 3. During the movement, due to the inclined setting of the slide rail 3, the height between the slide rail 3 and the upper guide rail of the cab body 1 is continuously reduced. During this process, the compression amount of the compression spring 408 on the roller assembly 4 continuously increases. When the horizontal sliding door 2 moves to the rightmost end, it will be stationary because the roller assembly 4 is in contact with the vertical surface. When closing, the driver needs to apply a certain force to the horizontal sliding door 2 so that the roller assembly 4 passes over the vertical surface, and thus passes over the protrusion 5 through its own gravity to close the horizontal sliding door 2.

[0023] 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 high-safety cab, comprising a cab body (1) with a frame structure, a horizontal sliding door (2) slidingly connected to the side of the cab body (1), and an upwardly-inclined slide rail (3) provided on the floor of the cab body (1) below the horizontal sliding door (2), characterized in that: The horizontal sliding door (2) is provided with a roller assembly (4) below, the roller assembly (4) comprises a frame body (401) welded integrally below the horizontal sliding door (2), the frame body (401) is integrally provided with a limiting ring body (402) on the bottom surface, further comprising a roller body (403), the roller body (403) is penetrated through with a central shaft (404), the central shaft (404) is connected with a group of mirror image arranged L-shaped rods (405) at both ends, the vertical section of the two L-shaped rods (405) is bolted with a horizontal plate (406) at the upper end, the horizontal plate (406) is provided with a convex column (407), the convex column (407) is sleeved with a compression spring (408), the upper end of the compression spring (408) abuts against the top of the limiting ring body (402), and the lower end of the compression spring (408) abuts against the upper surface of the horizontal plate (406).

2. The high safety cab of claim 1, wherein: The sliding rail (3) is provided with a plurality of trapezoidal protrusions (5) at intervals, and the right side end surface of the protrusion (5) at the end of the sliding rail (3) is provided as a vertical surface.

3. The high security cab of claim 2, wherein: The left side eave of the horizontal sliding door (2) and the corresponding eave of the cab body (1) are both embedded with rubber strips (7).

4. The high security cab of claim 3, wherein: The cab body (1) is provided with a limiting block (6) above the surface to avoid the sliding out of the horizontal sliding door (2).

5. A high safety cab according to any one of claims 1 to 4, characterized in that: Both ends of the central shaft (404) are threaded sections, the free ends of the horizontal sections of the L-shaped rods (405) are all provided with internal threads, and the horizontal sections of the L-shaped rods (405) are screwed with the free ends of the central shaft (404).

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