Elevator car structure

Abstract

The utility model discloses an elevator car structure which comprises a car, a fan is installed at the top of the car, a fan is installed at the top of the fan, upper air inlets are formed in the four corners of the top of the car, the bottoms of the upper air inlets are connected with an upper ventilation cavity, and upper air outlets are formed in the positions, close to the inner side, of the upper ventilation cavity. Lower air inlets are formed in the four corners of the bottom of the lift car, the tops of the lower air inlets are connected with lower ventilation cavities, and lower air outlets are formed in the positions, close to the inner side, of the lower ventilation cavities. According to the elevator car structure, external air and air in the car can be better matched for circulation exchange through assistance of vertical movement of the car, when the car is not used for a long time, the draught fan is started to drive the fan to circulate the air in the car, peculiar smell is prevented from being generated, the starting time of the fan is greatly shortened, and electric energy is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of elevators, in particular to an elevator car structure. Background Art

[0002] An elevator is a vertical lift powered by an electric motor, also known as a vertical elevator, used for carrying people or goods in multi-story buildings. The car is a box-shaped space used by the elevator to carry and transport people and materials. It is generally composed of main components such as a car bottom, a car wall, a car top, and a car door, and its internal net height should be at least 2m. In the prior art, a corresponding elevator car structure is mentioned, such as the prior art: CN213265272U, an elevator car, the suspension assembly includes a connecting block arranged on a handrail, a connecting rod arranged at the bottom end of the connecting block, and a hook fixed at the bottom end of the connecting rod.

[0003] There are other existing technologies:

[0004] CN207551662U, an elevator car;

[0005] CN206486153U, an elevator car.

[0006] The elevator car structure mentioned in the above-mentioned prior art is closed most of the time due to the safety requirements of the elevator car, resulting in poor air circulation in the car. Most elevator cars do not have special ventilation devices, and some use fans to blow and exhaust for a long time to prevent odor. Long-term use of fans can easily cause a waste of electricity. At the same time, general elevators do not have a buffer structure. When the elevator moves quickly, the passengers inside will be affected to a certain extent. Utility Model Content

[0007] The purpose of the utility model is to provide an elevator car structure to solve the problems raised in the above background technology.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an elevator car structure, including a car, characterized in that: a fan is installed on the top of the car, a blower is installed on the top of the fan, upper air inlets are opened at the four corners of the top of the car, the bottom of the upper air inlet is connected to an upper ventilation cavity, the upper ventilation cavity is opened near the inner side of the upper air outlet, a guardrail is provided at the connection between the upper air outlet and the car, lower air inlets are opened at the four corners of the bottom of the car, the top of the lower air inlet is connected to the lower ventilation cavity, and the lower air outlet is opened near the inner side of the lower ventilation cavity.

[0009] Preferably, a pedal is provided near the bottom of the car, a damper is provided at the center position of the bottom of the pedal, a damping chamber 1 is provided near the top of the damper, a damping chamber 2 is provided below the damping chamber 1, a connecting hole is provided between the damping chamber 1 and the damping chamber 2, a bottom push block is provided at the bottom of the damping chamber 2, the top outer ring of the bottom push block is fixedly connected to the limiting hole, and a stop block is fixedly connected to the bottom of the inner side of the damper.

[0010] Preferably, spring columns are arranged near the center of the bottom of the pedal and around the periphery, and springs are sleeved on the surfaces of the spring columns.

[0011] Preferably, the damper is provided at five locations in total, and the spring column is provided at four locations in total.

[0012] Preferably, a baffle is provided below the fan, and the baffle is connected to the top of the car via a connecting rod.

[0013] Preferably, the lower air outlet is located above the pedal.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The elevator car structure is that when the car is ascending, the air in the elevator shaft enters the car through the upper air inlet, the upper ventilation cavity and the upper air outlet. Similarly, when the car is descending, the outside air enters the car from the lower air inlet. The vertical movement of the car can better coordinate the circulation exchange of the outside air and the air in the car. When the car is not used for a long time, the fan is started to drive the fan to circulate the air in the car to prevent the generation of odor, which greatly reduces the time of fan startup and saves electricity.

[0016] 2. In the elevator car structure, before the car accelerates to a uniform speed after starting, the bottom push block squeezes the damping fluid in the damping chamber 1, and the damping fluid slowly flows into the damping chamber 2 through the connecting hole, which makes the damper drive the pedal to reduce the instantaneous movement speed of the pedal following the car. The passengers on the pedal feel that the instantaneous speed of the car is reduced, the movement inside the car becomes smooth, and the passengers will feel more comfortable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0019] Figure 3 This is a cross-sectional view of the structure of the utility model;

[0020] Figure 4 for Figure 3 The enlarged view of point A is shown;

[0021] Figure 5 This is a schematic diagram of the fan structure of the utility model.

[0022] In the figure: 1. car; 2. fan; 3. blower; 4. upper air inlet; 5. upper ventilation chamber; 6. upper air outlet; 7. connecting rod; 8. baffle; 9. lower air inlet; 10. lower ventilation chamber; 11. lower air outlet; 12. damper; 13. damping chamber 1; 14. damping chamber 2; 15. connecting hole; 16. block; 17. bottom push block; 18. limit block; 19. spring column; 20. spring; 21. pedal. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example: See Figure 1 , the utility model provides a technical solution: an elevator car structure.

[0025] Among them, a fan 2 is installed on the top of the car 1, and a fan 3 is installed on the top of the fan 2. Upper air inlets 4 are opened at the four corners of the top of the car 1. The bottom of the upper air inlet 4 is connected to an upper ventilation cavity 5. An upper air outlet 6 is opened near the inner side of the upper ventilation cavity 5. A guardrail is provided at the connection between the upper air outlet 6 and the car 1. Lower air inlets 9 are opened at the four corners of the bottom of the car 1. The top of the lower air inlet 9 is connected to a lower ventilation cavity 10. A lower air outlet 11 is opened near the inner side of the lower ventilation cavity 10.

[0026] In this embodiment, when the car 1 moves upward, the outside air will enter the upper ventilation cavity 5 through the upper air inlet 4, and then enter the car 1 through the upper ventilation cavity 5 through the upper air outlet 6, and the air in the car 1 flows downward due to inertia, flows out from the lower air outlet 1 into the lower ventilation cavity 10, and is finally discharged through the lower air inlet 9, so that air circulation can be carried out inside the entire car 1. Similarly, when the car 1 moves downward, the air will enter the car 1 from the lower air inlet 9, and finally be discharged from the upper air inlet 4, so that the car 1 can exchange internal air without the need for electric power to drive the fan 2. The guardrail can prevent external debris from entering the interior of the car 1. When the car 1 does not move for a long time, the fan 2 is started by the fan 3, and the outside air is exchanged with the air inside the car 1 through the opening at the top of the car 1. When the car 1 is working, it only needs to pass through the upper air inlet 4 and the lower air inlet 9, and there is no need to start the fan 2, so that the entire car 1 is more energy-saving.

[0027] Among them, a pedal 21 is arranged near the bottom inside the car 1, a damper 12 is arranged at the center position of the bottom of the pedal 21, a damping chamber 13 is opened near the top inside the damper 12, a damping chamber 2 14 is arranged below the damping chamber 13, a connecting hole 15 is opened between the damping chamber 13 and the damping chamber 2 14, a bottom push block 17 is arranged at the bottom of the damping chamber 2 14, the top outer ring of the bottom push block 17 is fixedly connected to the limiting hole 18, and a stopper 16 is fixedly connected to the bottom of the inner side of the damper 12.

[0028] In this embodiment, the passenger enters the car 1 and steps on the pedal 21 with both feet. The pedal 21 is squeezed and moves downward. At the same time, the pedal 21 drives the damper 12 to move downward, and the bottom push block 17 does not move. Then, the space of the damping chamber 2 14 between the damper 12 and the bottom push block 17 becomes smaller, and the damping fluid in the damping chamber 2 14 enters the damping chamber 1 13 through the connecting hole 15 connected between the damping chamber 2 14 and the damping chamber 1 13. Due to the characteristics of the damping fluid and the relatively small diameter of the connecting hole 15, the damping fluid enters relatively slowly, so that the pedal 2 1 moves relatively slowly. Similarly, when the car 1 rises or descends, the space of the damping chamber 2 14 becomes larger or smaller accordingly. The damping fluid flows between the damping chamber 1 13 and the damping chamber 2 14 through the connecting hole 15 to slow down the movement speed of the pedal 21. The instantaneous speed of the car felt by the passengers on the pedal is reduced, the movement inside the car becomes smoother, and the passengers feel more comfortable. The bottom push block 17 moves between the upper and lower blocks 16 at the bottom of the damper 12 through the limit block 18 to prevent the resistor 12 from falling off the bottom push block 17.

[0029] A spring column 19 is disposed near the center of the bottom of the pedal 21 , and a spring 20 is sleeved on the surface of the spring column 19 .

[0030] In this embodiment, a section of the spring column 19 is disconnected in the middle to allow the pedal 21 to move up and down. The spring 20 cooperates with the damper 12 to also achieve a certain shock-absorbing effect. The spring 20 pushes the pedal 21 upward so that the pedal 21 will not be at the lowest position when there is a passenger on the pedal 21, and the damper 12 still has a certain deceleration capability.

[0031] There are five dampers 12 and four spring columns 19 .

[0032] In this embodiment, a damper 12 is provided at the center of the pedal 21, one is provided at each of the four corners of the pedal 21, and a spring column 19 is provided at each of the upper, lower, left and right positions of the resistor 12 at the center position. This distribution ensures that there is not too much gap area in the pedal 21, and the force is evenly applied to each place, and the pedal 21 is not easy to tilt.

[0033] A baffle plate 8 is provided below the fan 2 , and the baffle plate 8 is connected to the top of the car 1 via a connecting rod 7 .

[0034] In this embodiment, the fan 2 is started by the blower 3 to blow outside air into the interior of the car 1. When the car 1 is not started for a long time, the fan 2 can be turned on to exchange gas to avoid the long-term deterioration of the enclosed air and the generation of odor.

[0035] The lower air outlet 11 is located above the pedal 21 .

[0036] In this embodiment, the pedal 21 cannot exceed the bottom of the lower air outlet 11 when moving to affect the normal operation of the lower air outlet 11 .

[0037] Working principle: When the car 1 is ascending, the air in the elevator shaft passes through the upper air inlet 4, the upper ventilation cavity 5 and the upper air outlet 6 into the interior of the car, and the air in the car 1 flows downward with inertia, flows out from the lower air outlet 11 into the lower ventilation cavity 10, and is finally discharged through the lower air inlet 9. Similarly, when the car 1 is descending, the outside air enters the car 1 from the lower air inlet 9, the lower ventilation cavity 10 and the lower air outlet 11, and the air in the car 1 flows upward with inertia, flows out from the upper air outlet 6 into the upper ventilation cavity 5, and is finally discharged through the upper air inlet 4. The vertical movement of the car 1 can better coordinate the outside air and the car The air in the car 1 is circulated and exchanged. When the car 1 is not used for a long time, the blower 3 is started to drive the fan 2 to circulate the air in the car 1 to prevent the generation of odor, which greatly reduces the time for starting the fan and saves electric energy. Before the car 1 accelerates to a uniform speed after starting, the bottom push block 17 squeezes the damping liquid in the damping chamber 13, and the damping liquid slowly flows into the damping chamber 2 14 through the connecting hole 15, which makes the damper 12 drive the pedal 21 to reduce the instantaneous movement speed of the pedal 21 following the car 1. The passengers on the pedal 21 feel that the instantaneous speed of the car 1 is reduced, the movement inside the car 1 becomes smooth, and the passengers will feel more comfortable.

[0038] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An elevator car structure, comprising a car (1), characterized in that: A fan (2) is installed on the top of the car (1), a blower (3) is installed on the top of the fan (2), upper air inlets (4) are provided at the four corners of the top of the car (1), the bottom of the upper air inlet (4) is connected to an upper ventilation cavity (5), an upper air outlet (6) is provided near the inner side of the upper ventilation cavity (5), a guardrail is provided at the connection between the upper air outlet (6) and the car (1), lower air inlets (9) are provided at the four corners of the bottom of the car (1), the top of the lower air inlet (9) is connected to a lower ventilation cavity (10), and a lower air outlet (11) is provided near the inner side of the lower ventilation cavity (10).

2. An elevator car structure according to claim 1, characterized in that: A pedal (21) is arranged near the bottom of the car (1), a damper (12) is arranged at the center of the bottom of the pedal (21), a damping chamber (13) is arranged near the top of the damper (12), a damping chamber (14) is arranged below the damping chamber (13), a connecting hole (15) is arranged between the damping chamber (13) and the damping chamber (14), a bottom push block (17) is arranged at the bottom of the damping chamber (14), the top outer ring of the bottom push block (17) is fixedly connected to the limiting hole (18), and a stopper (16) is fixedly connected to the inner bottom of the damper (12).

3. An elevator car structure according to claim 2, characterized in that: Spring columns (19) are arranged near the central position of the bottom of the pedal (21) and around the periphery, and springs (20) are sleeved on the surface of the spring columns (19). The spring columns (19) are arranged at four locations in total.

4. An elevator car structure according to claim 2, characterized in that: The damper (12) is provided at five locations in total.

5. An elevator car structure according to claim 1, characterized in that: A baffle (8) is provided below the fan (2), and the baffle (8) and the top of the car (1) are connected via a connecting rod (7).

6. An elevator car structure according to claim 1, characterized in that: The lower air outlet (11) is located above the pedal (21).

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