Turnover type shelter boarding door

Abstract

The utility model relates to a turnover shelter boarding door, which belongs to the field of shelters and comprises a cabin door, a ladder assembly pedal assembly and a cabin door traction assembly. The cabin door is hinged to one side of the square cabin body and matched with a cabin door reserved door hole correspondingly formed in the side wall of the square cabin. Two sides of the bottom of the cabin door are horizontally hinged with two sides of the door hole to realize vertical overturning of the cabin door. The ladder assembly pedal assembly is installed on the inner wall of the cabin door and used as a cabin climbing pedal when the cabin door is unfolded. The cabin door traction assembly comprises multiple pulleys, a cable and a motor, the pulleys are fixedly arranged on the inner wall of the shelter, one end of the cable is connected with the top of the cabin door, the other end of the cable sequentially penetrates through the pulleys to be connected with a winding shaft barrel of the motor, and the motor is used for driving the cable to be wound and unwound so as to pull the cabin door to turn up and down. The cabin door and the ladder assembly are integrally designed, so that the cabin door can close the door hole in the side wall of the shelter when being closed and can be used as the ladder assembly for climbing the shelter when being unfolded, and the problems that the carrying of the shelter exceeds the limit, vibration noise is easily generated and the camouflage performance is poor due to the adoption of an external hanging ladder assembly are solved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of square cabin, and particularly relates to a turnover square cabin cabin door. BACKGROUND

[0002] The square cabin, as a widely used loading platform, plays an important role in various fields such as military defense and medical treatment. As a movable device, the square cabin can be combined with a vehicle to realize high-speed maneuvering. The vehicle-mounted square cabin is placed on the vehicle chassis at a certain height from the ground, and a cabin ladder is needed for personnel to get on and off the cabin during the design of such square cabin.

[0003] The existing vehicle-mounted square cabin generally uses an external ladder rack to realize cabin climbing, which may cause the square cabin shape to exceed the limit during transportation, reduce the overall strength of the square cabin, easily produce vibration and noise, and also make the square cabin design complex, the aesthetic degree decrease, and the total weight increase. In particular, in the square cabin with camouflage requirements, the external ladder rack has poor camouflage performance, which increases the risk of exposure of the square cabin. SUMMARY

[0004] Technical problems to be solved:

[0005] In order to avoid the shortcomings of the prior art, the present application provides a turnover square cabin cabin door, which integrates the cabin door and the ladder rack, and the ladder rack is arranged on the inner wall of the cabin door, thereby solving the problems of square cabin transportation exceeding the limit, easily producing vibration and noise, and poor camouflage performance caused by the external ladder rack.

[0006] The technical scheme of the present application is: a turnover square cabin cabin door, comprising a cabin door, a ladder rack pedal assembly and a cabin door traction assembly;

[0007] The cabin door is hinged to one side of the square cabin body and matched with the cabin door reserved door hole corresponding to the side wall of the square cabin body; the bottom of the cabin door is horizontally hinged to the square cabin side wall on both sides of the reserved door hole, for upward and downward turning of the cabin door;

[0008] The ladder rack pedal assembly is installed on the inner wall of the cabin door and used as a pedal for climbing when the cabin door is turned to an unfolded state;

[0009] The cabin door traction assembly comprises a plurality of pulleys, a cable and a motor, the plurality of pulleys are fixedly arranged on the inner wall of the square cabin, one end of the cable is connected to the top inner wall of the cabin door, the other end of the cable is sequentially connected to the winding shaft cylinder of the motor through the plurality of pulleys, and the cable is slidingly connected with each pulley; the motor is fixed in the square cabin and used to drive the cable to be wound and unwound, so as to pull the cabin door upward to be folded or downward to be unfolded.

[0010] A further technical solution of the present application is that the cabin door has two working states, one is a closed state, at this time the cabin door is a part of the side wall of the side cabin, and seals the reserved door hole of the side wall of the cabin body; the other is an unfolded state, at this time the cabin door together with the ladder rack pedal assembly is used as a ladder rack for boarding.

[0011] A further technical solution of the present application is that the bottom of the cabin door is symmetrically provided with a hinge shaft, which is hingedly connected with the mounting hole provided at the bottom of the door hole of the side wall of the cabin.

[0012] A further technical solution of the present application is that the cabin door is a chamfered square cabin, and the top of the cabin door contains a chamfered part when the cabin door is closed; when the cabin door is unfolded, the chamfered part of the top of the cabin door touches the ground.

[0013] A further technical solution of the present application is that the ladder rack pedal assembly comprises a step support plate and a step pedal, a plurality of step support plates are fixed horizontally along the height direction of the cabin door on the inner wall of the cabin door, and one step pedal is fixedly installed on each step support plate; the step pedal is arranged obliquely relative to the cabin door, and the end close to the cabin door is fixedly connected with the inner wall of the cabin door; the step support plate is used for supporting the step pedal, and the step pedal is used for boarding foot pedal.

[0014] A further technical solution of the present application is that the step pedal is a rectangular plate, and the included angle between the step pedal and the cabin door is 45°±10°.

[0015] A further technical solution of the present application is that the step support plate is a metal plate with inner buckling inclined flanges on two sides, one side flange is fixedly connected with the cabin door, the other side flange is fixedly connected with the step pedal, and the step support plate forms a triangular support for the step pedal.

[0016] A further technical solution of the present application is that the cabin door traction assembly is provided with two groups, which are symmetrically installed in the cabin in the width direction of the cabin door; two cable connecting blocks are symmetrically provided on the inner wall of the cabin door at the top of the cabin door, which are used for fixing the cable of the cabin door traction assembly on the same side.

[0017] A further technical solution of the present application is that the plurality of pulleys, the winding shaft cylinder of the motor and the corresponding side cable connecting block in the cabin door traction assembly are located in the same working plane; the plurality of pulleys are arranged on the top wall of the cabin and the side wall of the cabin opposite to the cabin door; the motor is close to the side wall of the cabin opposite to the cabin door, and is fixedly connected with the bottom plate of the cabin.

[0018] A further technical solution of the present application is that the output shaft of the motor is provided with a winding shaft cylinder for winding the cable; the motor is provided with a built-in programming controller, the programming controller is electrically connected with the control console of the cabin of the cabin, and the control console sends control instructions to the programming controller of the motor to control the action of the motor.

[0019] Advantages

[0020] The application has the advantages that the turn-over square cabin access door integrates the access ladder frame and the door for going up and down the cabin, has the functions of going in and out of the cabin and the ladder frame, is neat and beautiful in the turn-over closed state, has no extra external components, and can be used as the ladder frame for going up and down the cabin in the unfolded state.

[0021] The application cancels the external ladder frame on the square cabin, avoids the external ladder frame causing the square cabin to exceed the limit, and avoids the external ladder frame generating vibration and noise in the movement of the square cabin due to the external connecting components. The integral design of the door and the ladder frame does not affect the overall strength of the square cabin, and compared with the internal recess provided on the cabin wall for installing the external ladder frame, the structure of the application can effectively ensure the strength of the square cabin. Meanwhile, the integral appearance structure is more conducive to the camouflage of the square cabin.

[0022] The door traction assembly of the application drives the cable by the motor, forms traction on the top of the door, makes the door turn over up and down around the bottom hinge according to the required folding and unfolding speed, ensures the stability in the opening and closing process of the door, and can be controlled to be folded and unfolded and turned over to the corresponding unfolded angle according to the requirement. In the turning-over movement of the door, the pulley can guide and support the cable. In the unfolded state of the door, the top of the door touches the ground, and the step pedal with the 45° angle with the door is basically horizontal, which is convenient for going up and down the cabin.

[0023] The application has the advantages of simple structure, easy operation, and strong practicability, and can be used for various vehicle-mounted square cabins. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 Fig. 1 is a perspective view of the turn-over square cabin access door and the square cabin body of the application (symmetrical along the center of the door width);

[0025] Figure 2 Fig. 2 is a sectional view of the turn-over square cabin access door and the square cabin body of the application;

[0026] Figure 3 Fig. 3 is an outside front view of the door;

[0027] Figure 4 Fig. 4 is an inside front view of the door;

[0028] Figure 5 Fig. 5 is a side view of the door;

[0029] Figure 6 Fig. 6 is a top view of the door;

[0030] Figure 7 Fig. 7 is a bottom view of the door.

[0031] Reference signs: 1. cabin door, 11. hinged shaft, 12. cable connecting block, 2. ladder rack pedal assembly, 21. step support plate, 22. step pedal, 3. cabin door traction assembly, 31. pulley, 32. cable, 33. motor, 4. shelter body. DETAILED DESCRIPTION

[0032] The embodiments described below with reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0033] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0034] The present embodiment provides a flip type shelter cabin door. The cabin door 1 is integrated with the ladder rack. When the cabin door 1 is unfolded, it is used as a ladder rack for boarding and alighting the shelter. It is convenient for personnel and equipment to enter and exit. When the cabin door 1 is closed, it is used as part of the side wall of the shelter body 4 to close the shelter body 4. This structure avoids designing and installing an external ladder rack outside the shelter body 4. It has the characteristics of simple structure, neat appearance and does not increase the weight of the shelter. It avoids the problem of shelter shape exceeding the limit due to the external ladder rack of the shelter. It improves the problem of the overall strength of the shelter being affected, large vibration and noise and poor camouflage performance due to the external ladder rack of the shelter.

[0035] Referring to Figure 1 , 2 Taking the shelter body 4 as an example, the flip type shelter cabin door of the present embodiment includes a cabin door 1, a ladder rack pedal assembly 2 and a cabin door traction assembly 3. The cabin door 1 is hinged to one side of the shelter body 4 and matches the cabin door reserved hole provided corresponding to the side wall of the shelter. The cabin door 1 is horizontally hinged to the side wall of the shelter on both sides of the bottom of the cabin door 1, which is used for the up and down flipping of the cabin door 1. Specifically, the hinged shaft 11 is symmetrically installed on both sides of the bottom of the cabin door 1 and is hingedly matched with the mounting hole provided corresponding to both sides of the bottom of the cabin door reserved hole of the side wall of the shelter, so as to realize the up and down flipping of the cabin door 1. The cabin door 1 is flipped upward for closing. When the cabin door 1 is completely closed, it closes the cabin door reserved hole and becomes part of the side wall of the shelter. The cabin door 1 is flipped downward for unfolding. After being completely unfolded, it can be used as a ladder rack for boarding and alighting the shelter.

[0036] Referring to Figures 3-7The overall shape of the hatch 1 is rectangular, and the top of the hatch 1 includes a partially chamfered portion when the hatch 1 is flipped to a closed state, and the chamfered portion of the top of the hatch 1 contacts the ground to form a support when the hatch 1 is unfolded.

[0037] The ladder frame pedal assembly 2 is installed on the inner wall of the hatch 1 and cooperates with the hatch 1 to form a ladder frame for use as a stepping pedal when the hatch 1 is flipped to an unfolded state. The ladder frame pedal assembly 2 includes a step support plate 21 and a step pedal 22, and a plurality of step support plates 21 are fixedly arranged on the inner wall of the hatch 1 along the height direction of the hatch 1 at equal intervals, and one step pedal 22 is fixedly installed on each step support plate 21. The step pedal 22 is arranged obliquely relative to the hatch 1, and the included angle between the step pedal 22 and the upward direction of the hatch 1 is 45°±10°. The end of the step pedal 22 close to the hatch 1 is fixedly connected to the inner wall of the hatch 1. The step support plate 21 is used to support the step pedal 22, and the step pedal 22 is used as a stepping pedal.

[0038] In this embodiment, the end of the step pedal 22 close to the hatch 1 is fixedly connected to the inner wall of the hatch 1 by welding, and the step support plate 21 forms a triangular support for the step pedal 22 to ensure the stability of the stepping pedal. The step support plate 21 is a metal plate with inner buckling and oblique flanging on both sides, and the flanging on one side is fixedly connected to the hatch 1 by welding, and the flanging on the other side is fixedly connected to the step pedal 22 by welding. In other embodiments other than this embodiment, the connection between the step support plate 21, the step pedal 22 and the inner wall of the hatch 1 can also be achieved by screw connection.

[0039] The hatch pulling assembly 3 is used to realize the pulling during the flipping of the hatch 1 and is installed inside the shelter body 4. In order to ensure that the hatch 1 does not deviate during the flipping, the hatch pulling assembly 3 in this embodiment is provided with two groups and symmetrically pulls the top of the hatch 1 on both sides in the width direction.

[0040] The hatch pulling assembly 3 includes four pulleys 31, a cable 32 and a motor 33. The four pulleys 31 are fixedly arranged on the inner wall of the shelter body 4, two of which are fixed on the top wall of the shelter, one is fixed on the chamfered portion above the side wall of the shelter opposite to the hatch 1, and the other is fixed on the middle portion of the side wall of the shelter opposite to the hatch 1. The four pulleys are fixedly connected to the inner wall of the shelter by screws. The motor 33 is installed inside the shelter and fixedly connected to the bottom plate of the shelter by screws, close to the side wall of the shelter opposite to the hatch 1. One end of the cable 32 is connected to the inner wall of the top of the hatch 1, and the other end is sequentially connected to the winding shaft cylinder of the motor 33 through a plurality of pulleys 32, and the cable 32 is slidably connected to each pulley 31.

[0041] Specifically, two cable connecting blocks 11 are symmetrically arranged on the inner wall of the hatch 1 at the top of both sides, and one end of the cable connecting block 11 is fixedly connected with the cable 32 of the hatch pulling assembly 3 on the corresponding side, so as to fix the cable 32 with the hatch 1. The four pulleys 31 play a sliding guide role on the cable 32, and at the same time, the cable 32 is limited to be close to the inner wall of the cabin, so as to avoid interference on the activity space in the cabin. The output shaft of the motor 33 is coaxially fixed with a winding shaft cylinder, which is used for winding the cable 32. In order to ensure the smoothness of the motor 33 winding and unwinding the cable 32, the pulley 31, the winding shaft cylinder of the motor 33 and the corresponding side cable connecting block 11 of the same group of hatch pulling assembly 3 are located on the same working plane.

[0042] The pulley 31 comprises a pin shaft, a rotating pulley and a pulley mounting rack, the pulley mounting rack is fixedly connected with the inner wall of the shelter, and the rotating pulley is rotatably connected with the pulley mounting rack through the pin shaft. The cable 32 is limited between the rotating pulley and the pulley mounting rack and is slidably connected with the rotating pulley.

[0043] The motor 33 is a power driving unit for winding and unwinding the cable 32, and the motor 33 is internally provided with a programmed controller. The programmed controller is electrically connected with the control console of the shelter vehicle cab, and the control console sends a control instruction to the programmed controller of the motor to control the action of the motor 33.

[0044] After the shelter and the vehicle arrive at the specified position and the vehicle is leveled, when the hatch 1 needs to be opened, the cab control console controls the motor 33 to rotate through the programmed controller internally provided in the motor 33, drives the winding shaft cylinder to rotate, releases the cable 32, and cooperates with the personnel outside the cabin to pull the hatch 1 to give an initial force. The hatch 1 can be unfolded under the traction of the cable 32 until the top chamfered portion of the hatch 1 touches the ground, and the motor 33 is turned off. When the hatch 1 needs to be closed, similarly, the cab control console controls the motor 33 to reversely rotate through the programmed controller, drives the winding shaft cylinder to rotate, tightens the cable 32, and cooperates with the personnel outside the cabin to give an initial force to the chamfered portion of the hatch 1. The motor 33 drives the winding shaft cylinder to continuously tighten the cable 32 until the hatch 1 is closed, and the motor 33 is turned off.

[0045] When the shelter is placed on soft ground, the hatch 1 of the embodiment can also provide a floating plate passage for personnel and equipment, which is convenient for personnel and equipment to enter and exit. Since the width of the step pedal 22 is smaller than the width of the hatch 1, a passable passage can be formed on both sides of the step pedal 22.

[0046] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those skilled in the art can make changes, modifications, replacements and variations to the above embodiments without departing from the principles and purposes of the present application within the scope of the present application.

Claims

1. A roll-over shelter entry door, comprising: The cabin door, the ladder rack pedal assembly, and the cabin door traction assembly are included. The cabin door is hinged to one side of the shelter body and matches the door reserved hole arranged on the side wall of the shelter. The ladder rack pedal assembly is installed on the inner wall of the cabin door and serves as the pedal for boarding when the cabin door is turned over to the unfolded state. The cabin door traction assembly includes multiple pulleys, a cable, and a motor.

2. The reverse aerofoil door according to claim 1, wherein, The multiple pulleys are fixedly arranged on the inner wall of the shelter body.

3. The reverse aerofoil door for a shelter according to claim 1, wherein, One end of the cable is connected to the top inner wall of the cabin door, and the other end is sequentially connected to the winding shaft cylinder of the motor through the multiple pulleys.

4. The reverse aerofoil door for a shelter according to claim 1, wherein, The cable is slidably connected to each pulley.

5. The reverse aerofoil door for a shelter according to claim 1, wherein, The motor is fixedly arranged in the shelter and is used to drive the winding and unwinding of the cable.

6. The reverse aerofoil door for a shelter according to claim 5, wherein, The motor is electrically connected to the control console of the shelter vehicle cab.

7. The reverse aerofoil door for a shelter according to claim 5, wherein, The control instructions are sent from the control console to the program controller of the motor to control the action of the motor.

8. The reverse aerofoil door for a shelter according to claim 1, wherein, The cabin door has two working states.

9. The reverse aerofoil door for a shelter according to claim 8, wherein, In the closed state, the cabin door serves as a part of the side wall of the shelter and closes the door reserved hole of the side wall of the shelter body.

10. The reverse aerofoil door for a shelter according to claim 1, wherein, In the unfolded state, the cabin door and the ladder rack pedal assembly serve as the ladder rack for boarding. The hinged shafts are symmetrically installed on the bottom of the cabin door and are hingedly connected to the mounting holes arranged on the bottom of the door reserved hole of the side wall of the shelter. The shelter body is a corner-cut shelter. The top of the cabin door includes a part of the corner-cut portion when the cabin door is closed. The corner-cut portion of the top of the cabin door touches the ground when the cabin door is unfolded. The ladder rack pedal assembly includes the step support plates and the step pedals. Multiple step support plates are fixedly arranged on the inner wall of the cabin door along the height direction of the cabin door. One step pedal is fixedly installed on each step support plate. The step pedals are arranged obliquely relative to the cabin door. One end of the step pedal close to the cabin door is fixedly connected to the inner wall of the cabin door. The step support plates are used to support the step pedals. The step pedals are used as the foot pedals for boarding. The step pedal is a rectangular plate. The included angle between the step pedal and the cabin door is 45°±10°. The step support plate is a metal plate with inner buckling oblique flanges on both sides. One side of the flange is fixedly connected to the cabin door. The other side of the flange is fixedly connected to the step pedal. The step support plate forms a triangular support for the step pedal. The cabin door traction assembly has two groups. The two groups are symmetrically installed on both sides of the cabin door in the width direction of the shelter. Two cable connecting blocks are symmetrically arranged on the top of the inner wall of the cabin door. The multiple pulleys, the winding shaft cylinder of the motor, and the corresponding cable connecting block are located in the same working plane. The multiple pulleys are arranged on the top wall of the shelter and the side wall of the shelter opposite to the cabin door. The motor is close to the side wall of the shelter opposite to the cabin door and is fixedly connected to the bottom plate of the shelter. The output shaft of the motor has the winding shaft cylinder for winding the cable. The motor has a built-in program controller. The program controller is electrically connected to the control console of the shelter vehicle cab. The control instructions are sent from the control console to the program controller of the motor to control the action of the motor.

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