Turnover type armrest box framework

Abstract

The utility model discloses a turnover type armrest box framework. The turnover type armrest box framework comprises a fixed support, a movable support is hinged to the top of the fixed support, an air spring is arranged between the movable support and the side wall of one side of the fixed support and used for supporting the movable support, a locking mechanism is arranged between the movable support and the side wall of the other side of the fixed support, and the locking mechanism comprises a driving part and a locking part. The driving part is pivoted to the front side of the movable support through a first rotating shaft, the locking part is pivoted to the middle of the movable support through a second rotating shaft, a stop pin matched with the driving part is arranged on the side wall of one side of the top of the locking part, a universal tension spring is arranged between the side wall of the other side of the top of the locking part and the driving part, and a lock hook is arranged at the bottom of the locking part. The fixed support is provided with a lock pin matched with the lock hook, and the movable support is provided with a brake mechanism limiting free rotation of the driving piece. The utility model solves the problem that the driver is inconvenient to get on and off in the prior art.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering machinery, in particular to a flip-type armrest box frame. Background Art

[0002] In the cab of construction machinery, armrest boxes are usually arranged on both sides of the driver. Due to functional requirements, the armrest boxes are large and fixed, resulting in a small entrance to the cab, which brings inconvenience to the driver when getting on and off the vehicle. Utility Model Content

[0003] In view of the deficiencies of the prior art, the purpose of the utility model is to provide a flip-up armrest box frame which can increase the size of the entrance to the cab and thus facilitate the driver to get on and off the vehicle.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the flip-type armrest box frame of the utility model is:

[0005] A flip-up armrest box frame comprises a fixed bracket, a movable bracket is hinged on the top of the fixed bracket, a gas spring is arranged between the movable bracket and one side wall of the fixed bracket, the gas spring is used to prop up the movable bracket, a locking mechanism is arranged between the movable bracket and the other side wall of the fixed bracket, the locking mechanism comprises a driving member and a locking member, the driving member is pivotally connected to the front side of the movable bracket through a first rotating shaft, the locking member is pivotally connected to the middle part of the movable bracket through a second rotating shaft, a stop pin cooperating with the driving member is arranged on one side wall of the top of the locking member, a universal tension spring is arranged between the other side wall and the driving member, a locking hook is arranged at the bottom of the locking member, the fixed bracket is arranged with a locking pin cooperating with the locking hook, and the movable bracket is arranged with a braking mechanism for limiting the free rotation of the driving member.

[0006] Preferably, the braking mechanism includes a shell fixed to the movable bracket, a movable limit block is arranged at the bottom of the shell, the bottom surface of the movable limit block is arc-shaped, a plurality of guide pillars are arranged on the top of the movable limit block, the shell is provided with guide holes cooperating with the guide pillars, a spring is arranged in the shell and is sleeved on the outside of the guide pillars, and the spring forces the movable limit block to limit the free rotation of the driving member.

[0007] Preferably, the driving member includes an annular body sleeved on the outside of the first rotating shaft, a joystick extending out of the movable bracket is provided on the outer wall of the annular body, an operating handle is provided on the top of the joystick, a driving plate is provided at the end of the annular body, and a cylinder cooperating with the movable limit block is provided on the edge of the driving plate.

[0008] Preferably, a travel switch is provided at the bottom of the movable bracket.

[0009] Preferably, the fixed bracket is provided with a fall-back limit block, and the movable bracket is provided with a protrusion that cooperates with the fall-back limit block.

[0010] Compared with the prior art, the utility model has the following advantages:

[0011] 1. After the driving part rotates, the locking part is driven to rotate through the stop pin, the lock hook is disengaged from the lock pin to achieve unlocking, and the gas spring drives the movable bracket to flip upward, thereby increasing the size of the cab entrance and making it easier for the driver to get on and off the vehicle.

[0012] 2. The driving plate is driven to rotate directly through the operating lever, first forcing the movable limit block to slide upward, and then forcing the locking piece to rotate, which is easy to operate.

[0013] 3. After the movable bracket falls down, the cylinder slides to the lower side of the arc-shaped bottom surface of the movable limit block, and under the action of the spring, limits the rotation of the driving plate. The driving plate limits the rotation of the locking piece through the universal tension spring, thereby limiting the flipping of the movable bracket; after the movable bracket flips upward, the cylinder slides to the upper side of the arc-shaped bottom surface of the movable limit block, and under the action of the spring, limits the rotation of the driving plate and the locking piece, ensuring that the lock hook can be effectively locked on the outer peripheral surface of the lock pin when the movable bracket falls back. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A top view of the working state of the flip-type armrest box frame of the utility model;

[0015] Figure 2 for Figure 1 AA section view;

[0016] Figure 3 for Figure 1 BB cross-sectional view;

[0017] Figure 4 It is a top view of the flip-up armrest box frame of the utility model in the flip-up state;

[0018] Figure 5 for Figure 4 CC section view;

[0019] Figure 6 for Figure 4 DD cross-sectional view;

[0020] Figure 7 is a structural schematic diagram of the locking mechanism;

[0021] Figure 8 is a schematic diagram of the structure of the driving member;

[0022] Fig. 9 It is a structural diagram of the braking mechanism.

[0023] Among them, 1 fixed bracket, 11 fall back limit block, 12 locking pin, 2 movable bracket, 21 protrusion, 22 travel switch, 3 gas spring, 4 locking mechanism, 41 driving member, 411 annular body, 412 joystick, 413 operating handle, 414 driving plate, 415 through hole, 416 cylinder, 42 locking member, 421 stop pin, 422 hanging pin, 423 lock hook, 43 first rotating shaft, 44 second rotating shaft, 45 universal tension spring, 5 braking mechanism, 51 housing, 511 guide hole, 52 movable limit block, 521 guide column, 53 spring. DETAILED DESCRIPTION

[0024] The present invention is further explained below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that these implementation methods are only used to illustrate the present invention and are not used to limit the scope of the present invention. After reading the present invention, various equivalent forms of modifications to the present invention by those skilled in the art all fall within the scope defined by the claims attached to this application.

[0025] like Figure 1-9As shown, a flip-up armrest box frame includes a fixed bracket 1, a movable bracket 2 hinged on the top of the fixed bracket, a fall-back limit block 11 is installed on the right side of the fixed bracket, a protrusion 21 that is bent and formed by the movable bracket and cooperates with the fall-back limit block, and a travel switch 22 is installed on the bottom front side of the movable bracket. After the armrest box is flipped upward, the travel switch is disconnected and triggered, and the pilot oil circuit of the pilot hydraulic system is cut off. After the armrest box is flipped downward and reset, the travel switch is turned on and triggered, and the pilot oil circuit of the pilot hydraulic system is turned on, so that the pilot control operation of the machine can be performed. The movable bracket and the right side of the fixed bracket A gas spring 3 is arranged between the side walls, the pressure cylinder of the gas spring is hinged to the right side wall of the fixed bracket, the piston rod end of the gas spring is hinged to the right side wall of the movable bracket, the gas spring is used to support the movable bracket, and a locking mechanism 4 is arranged between the movable bracket and the left side wall of the fixed bracket. The locking mechanism includes a driving member 41 and a locking member 42. The driving member is pivotally connected to the front side of the left side wall of the movable bracket through a first rotating shaft 43. The driving member includes an annular body 411 sleeved on the outside of the first rotating shaft. The outer wall of the annular body is welded with a joystick 412 extending out of the movable bracket, and the top of the joystick is The operating handle 413 is installed, and the driving plate 414 is welded to the left end of the annular body. The locking piece is pivotally connected to the middle part of the left side wall of the movable bracket through the second rotating shaft 44. The left side wall at the top of the locking piece is arranged with a stop pin 421 cooperating with the driving piece. The stop pin is a bolt threadedly connected to the locking piece. A hanging pin 422 is installed on the right side wall of the locking piece. A through hole 415 is provided on the side of the driving plate extending toward the locking piece. A universal tension spring 45 is installed between the through hole and the hanging pin. The bottom of the locking piece has an integrally formed locking hook 423. A locking pin 12 cooperating with the locking hook is installed on the left side wall of the fixed bracket. The frame is installed with a brake mechanism 5 for limiting the free rotation of the driving member, and the brake mechanism includes a shell 51 fixed to the movable bracket, a movable limit block 52 is inserted into the bottom of the shell, the bottom surface of the movable limit block is arc-shaped, the edge of the driving plate is welded with a cylinder 416 that matches the movable limit block, and two guide columns 521 are fixed to the top of the movable limit block. The shell is provided with a guide hole 511 that matches the guide column, and the guide column passes through the guide hole so that the movable limit block can slide in the shell, and a spring 53 is arranged in the shell and is sleeved on the outside of the guide column. The spring forces the movable limit block to limit the free rotation of the driving member.

[0026] The specific working process and working principle of the utility model are as follows: the joystick is rotated counterclockwise, the operating lever drives the driving plate to rotate, the cylindrical body on the edge of the driving plate squeezes the movable limit block, slides from the lower side of the arc-shaped bottom surface of the movable limit block to the upper side, the universal tension spring contracts, which helps the driving plate to turn to the locking member, the driving plate applies force to the stop pin, drives the locking member to rotate counterclockwise, after the lock hook is disengaged from the lock pin and unlocked, the piston rod of the gas spring extends out, keeps the movable bracket in a flipped state, thereby increasing the size of the cab entrance and facilitating the driver to get on and off the vehicle, at this time the travel switch is disconnected and triggered, The pilot oil circuit of the pilot hydraulic system is cut off, and the engineering vehicle cannot work, ensuring safety; after the driver enters the cab, the movable bracket can be reset by reverse operation, at which time the travel switch is turned on and triggered, the pilot oil circuit of the pilot hydraulic system is turned on, and the pilot control operation of the machine can be performed, the cylinder slides to the lower side of the arc bottom surface of the movable limit block, and under the action of the spring, the rotation of the drive plate is limited, and the drive plate limits the rotation of the locking piece through the universal tension spring, thereby limiting the flipping of the movable bracket, and always keeping the travel switch turned on and triggered, ensuring the normal operation of the machine. The utility model is easy to operate and has high safety.

Claims

1. A flip-up armrest box frame, characterized in that: The invention comprises a fixed bracket, a movable bracket is hinged on the top of the fixed bracket, a gas spring is arranged between the movable bracket and one side wall of the fixed bracket, the gas spring is used to support the movable bracket, a locking mechanism is arranged between the movable bracket and the other side wall of the fixed bracket, the locking mechanism comprises a driving member and a locking member, the driving member is pivotally connected to the front side of the movable bracket through a first rotating shaft, the locking member is pivotally connected to the middle part of the movable bracket through a second rotating shaft, a stop pin cooperating with the driving member is arranged on one side wall of the top of the locking member, a universal tension spring is arranged between the other side wall and the driving member, a locking hook is arranged on the bottom of the locking member, the fixed bracket is arranged with a locking pin cooperating with the locking hook, and the movable bracket is arranged with a braking mechanism for limiting the free rotation of the driving member.

2. The flip-up armrest box frame according to claim 1, characterized in that: The braking mechanism includes a shell fixedly connected to the movable bracket, a movable limit block is arranged at the bottom of the shell, the bottom surface of the movable limit block is arc-shaped, a plurality of guide pillars are arranged on the top of the movable limit block, the shell is provided with guide holes cooperating with the guide pillars, a spring is arranged inside the shell and is sleeved on the outside of the guide pillars, and the spring forces the movable limit block to limit the free rotation of the driving member.

3. The flip-up armrest box frame according to claim 2, characterized in that: The driving member includes an annular body sleeved on the outside of the first rotating shaft, an outer wall of the annular body is provided with a joystick extending out of a movable bracket, an operating handle is provided on the top of the joystick, a driving plate is provided at the end of the annular body, and a cylinder cooperating with a movable limit block is provided at the edge of the driving plate.

4. The flip-up armrest box frame according to claim 1, characterized in that: A travel switch is arranged at the bottom of the movable bracket.

5. The flip-up armrest box frame according to claim 1, characterized in that: The fixed bracket is provided with a fall-back limit block, and the movable bracket is provided with a protrusion matched with the fall-back limit block.

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