Elevator ventilation and noise reduction structure

Abstract

The utility model discloses an elevator ventilation noise reduction structure which comprises a lift car, a fan is fixedly connected to the lift car, two ventilation columns are symmetrically and fixedly connected in the lift car, snakelike ventilation pipes are fixedly connected in the ventilation columns, sound absorption cotton is fixedly connected to the inner walls of the snakelike ventilation pipes, the upper end of one snakelike ventilation pipe is fixedly connected with the output end of the fan, and the lower end of the other snakelike ventilation pipe is fixedly connected with the output end of the fan. An exhaust head is fixedly connected to the upper end of the other S-shaped ventilation pipe, an exhaust groove is formed in the front face of the ventilation column, a screen frame is clamped in the exhaust groove, and a filter screen is fixedly connected in the screen frame. The umbrella-shaped baffle covers the exhaust head and the draught fan, air can be broken open in the ascending process of the lift car, so that the air is prevented from being poured into the exhaust head and the draught fan to cause wind whistling, meanwhile, the snakelike ventilation pipe is matched with the sound absorption cotton, noise passing through the snakelike ventilation pipe can be effectively attenuated, silent operation of the lift car is guaranteed, and the service life of the lift car is prolonged. And the use experience of a user is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a ventilation and noise reduction structure, especially an elevator ventilation and noise reduction structure. BACKGROUND

[0002] Due to the narrow space of the elevator car, large passenger flow, poor air circulation and other factors, it can threaten human health and even life, the air circulation in the car is poor, the circulation is poor, so the internal air quality is also poor, so the ventilation device needs to be opened to the elevator.

[0003] Such as the patent publication of China's publication number CN213237844U, a kind of with air filtering function's compartment elevator ventilation device, especially in elevator ventilation device technical field, including ventilation pipe, connecting pipe and filter pipe, ventilation pipe is concave character structure, connecting pipe is fixed on the upper end of ventilation pipe middle. The left and right sides of ventilation pipe are divided into exhaust passage and air inlet passage by sealing plate, so that exhaust and air intake are carried out at the same time, thereby improving the effect of ventilation and ventilation;Air is first passed through filter pipe before being discharged into the elevator interior, so that air is filtered through sachet, primary filter screen, activated carbon filter screen and high efficiency filter screen, not only can filter air, but also make air have fragrance, thereby improving the air quality discharged into the elevator, solve the current compartment elevator ventilation device, air is not discharged from compartment elevator, or air is discharged into compartment elevator, ventilation passage is relatively single, leading to the effect of ventilation is too poor, and does not have the problem of air filtration;

[0004] The above-mentioned one with air filtering function's compartment elevator ventilation device finds some problems when using, first, when the elevator reciprocates in the shaft, the gas is instantaneously compressed sharply, the gas is directly pressed into the car interior rapidly, which causes a certain wind howling sound, resulting in the comfort of elevator car passengers is greatly reduced. INVENTION CONTENTS

[0005] The utility model aims at providing an elevator ventilation and noise reduction structure to solve the problems in the above background.

[0006] To achieve the above object, the utility model provides the following technical scheme: an elevator ventilation and noise reduction structure, comprising a car, a fan is fixedly connected to the top of the car, two ventilation columns are symmetrically fixedly connected in the car, a serpentine ventilation pipe is fixedly connected in the ventilation column, sound-absorbing cotton is fixedly connected to the inner wall of the serpentine ventilation pipe, one end of the serpentine ventilation pipe is fixedly connected to the output end of the fan, the other end of the serpentine ventilation pipe is fixedly connected with an exhaust head, an exhaust groove is formed in the front of the ventilation column, a mesh frame is clamped in the exhaust groove, and a filter screen is fixedly connected in the mesh frame.

[0007] Preferably, the umbrella-shaped baffle is fixed to the top of the car by a support column, and the exhaust head and the fan are located below the umbrella-shaped baffle.

[0008] Preferably, the inlet and outlet are fixed to the serpentine ventilation pipe, and the inlet and outlet are located in the exhaust groove.

[0009] Preferably, the limit slot is arranged on the upper and lower surfaces of the net frame, the limit sliding slot is arranged on the front surface of the ventilation column and above and below the exhaust groove, the limit sliding slot is slidably connected with the limit pin plate, and the limit pin plate is matched with the limit slot.

[0010] Preferably, the return spring is fixed in the limit sliding slot, the other end of the return spring is fixed to the limit pin plate, and the displacement handle is fixed to the limit pin plate.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] 1. The umbrella-shaped baffle is arranged above the exhaust head and the fan, air is broken during the upward movement of the car, air is prevented from flowing into the exhaust head and the fan, and the occurrence of wind howling is avoided; the serpentine ventilation pipe and the sound-absorbing cotton are matched, noise passing through the serpentine ventilation pipe is effectively attenuated, the car is ensured to run quietly, and the use experience of the user is improved.

[0013] 2. The net frame and the filter screen are matched, dust or animals are prevented from entering the device, the limit pin plate is moved out of the limit slot by moving the displacement handle, the fixing of the net frame is released, the filter screen is cleaned in the later period, and the influence of too much dust on the filter screen on the ventilation effect is avoided. DETAILED DESCRIPTION

[0014] Figure 1 It is a whole structure schematic view of the utility model;

[0015] Figure 2 It is an explosion view of the ventilation column of the utility model;

[0016] Figure 3 It is a sectional view of the ventilation column of the utility model;

[0017] Figure 4 It is a whole structure schematic view of the utility model; Figure 3 It is an enlarged view of A in the figure.

[0018] In the figure: 1, car; 101, umbrella-shaped baffle; 2, ventilation column; 201, exhaust groove; 202, net frame; 203, filter screen; 204, limit slot; 3, limit sliding slot; 301, return spring; 302, limit pin plate; 303, displacement handle; 4, serpentine ventilation pipe; 401, sound-absorbing cotton; 402, inlet and outlet; 5, exhaust head; 6, fan. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0020] Please refer to Figures 1-4 The present application provides a technical solution: an elevator ventilation and noise reduction structure, comprising a car 1, a fan 6 is fixedly connected to the top of the car 1, two ventilation columns 2 are symmetrically fixedly connected in the car 1, a serpentine ventilation pipe 4 is fixedly connected in the ventilation column 2, sound-absorbing cotton 401 is fixedly connected to the inner wall of the serpentine ventilation pipe 4, one end of one serpentine ventilation pipe 4 is fixedly connected to the output end of the fan 6, the other end of the other serpentine ventilation pipe 4 is fixedly connected to an exhaust head 5, an exhaust groove 201 is formed on the front face of the ventilation column 2, a mesh frame 202 is clamped in the exhaust groove 201, and a filter screen 203 is fixedly connected in the mesh frame 202.

[0021] In the present embodiment, the air in the elevator shaft can be pumped into the right serpentine ventilation pipe 4 by starting the fan 6. The serpentine ventilation pipe 4 has a serpentine shape. When the noise generated by the fan 6 and the elevator operation passes through the inside of the serpentine ventilation pipe 4, it will be refracted at the bending part of the serpentine ventilation pipe 4, and will be weakened by mutual cancellation. After multiple reflections, the purpose of noise reduction is achieved. At the same time, the serpentine ventilation pipe 4 is provided with sound-absorbing cotton 401 on the inner wall, which can further absorb noise, thereby effectively preventing external noise from being conducted into the car 1 through the serpentine ventilation pipe 4. The fan 6 is used to pump air into the car 1, so that the air flow rate can be controlled, thereby avoiding the situation that air rushes into the serpentine ventilation pipe 4 during the upward movement of the car 1, resulting in wind howling.

[0022] In order to achieve the purpose of avoiding the upward wind of the elevator from flowing into the exhaust head 5 and the fan 6, the present device adopts the following technical solution: an umbrella-shaped baffle 101 is fixedly connected to the top of the car 1 through a support column, the exhaust head 5 and the fan 6 are located below the umbrella-shaped baffle 101, an air inlet and outlet 402 is fixedly connected to the upper part of the serpentine ventilation pipe 4, and the air inlet and outlet 402 is located in the exhaust groove 201.

[0023] The umbrella-shaped baffle 101 is located above the air exhaust head 5 and the fan 6, and during the upward movement of the car 1, air is broken, thereby avoiding the inflow of air into the air exhaust head 5 and the fan 6, and the air entering the serpentine ventilation pipe 4 in the left ventilation column 2 is transported to the serpentine ventilation pipe 4 through the air inlet and outlet 402 and is discharged from the air exhaust head 5, the main body of the air exhaust head 5 is a mesh frame, which can prevent animals, insects and the like from entering the serpentine ventilation pipe 4, and one row of air inlets and outlets is arranged on the left and right sides, so that a stable air duct is formed in the car 1, and better ventilation effect is achieved.

[0024] In order to achieve the purpose of avoiding foreign matters from entering the device, the device adopts the following technical scheme: limit grooves 204 are arranged on the upper and lower surfaces of the mesh frame 202, limit sliding grooves 3 are arranged on the front surface of the ventilation column 2 and above and below the air exhaust groove 201, a limit latch plate 302 is slidably installed in the limit sliding groove 3, the limit latch plate 302 cooperates with the limit groove 204, a return spring 301 is fixedly connected in the limit sliding groove 3, the other end of the return spring 301 is fixedly connected with the limit latch plate 302, and a displacement handle 303 is fixedly connected to the limit latch plate 302.

[0025] The limit latch plate 302 is moved and clamped into the limit groove 204 under the action of the return spring 301, so that the mesh frame 202 is fixed in the air exhaust groove 201, the filter screen 203 can ensure that air can freely enter and exit the air exhaust groove 201, and foreign matters or insects in the car can be prevented from entering the device, the displacement handle 303 can drive the limit latch plate 302 to move out of the limit groove 204, so that the fixing of the mesh frame 202 is released, and the filter screen 203 can be cleaned in the later period, so that the ventilation effect is not affected by too much dust accumulated on the filter screen 203.

[0026] The working principle and use process of the device are as follows: when the elevator is used and moves upward, the umbrella-shaped baffle 101 is located above the air exhaust head 5 and the fan 6, air is broken during the upward movement of the car 1, thereby avoiding the inflow of air into the air exhaust head 5 and the fan 6, and the air entering the serpentine ventilation pipe 4 in the left ventilation column 2 is transported to the serpentine ventilation pipe 4 through the air inlet and outlet 402 and is discharged from the air exhaust head 5, the main body of the air exhaust head 5 is a mesh frame, which can prevent animals, insects and the like from entering the serpentine ventilation pipe 4, and one row of air inlets and outlets is arranged on the left and right sides, so that a stable air duct is formed in the car 1, and better ventilation effect is achieved.

[0027] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An elevator ventilation and noise reduction structure, comprising a car (1), a fan (6) is fixed on the car (1), characterized in that: Two ventilation columns (2) are symmetrically fixed in the car (1), a serpentine ventilation pipe (4) is fixed in the ventilation column (2), sound-absorbing cotton (401) is fixed to the inner wall of the serpentine ventilation pipe (4), one end of one of the serpentine ventilation pipes (4) is fixedly connected with the output end of a fan (6), and the other end of the other serpentine ventilation pipe (4) is fixedly connected with an exhaust head (5), a ventilation groove (201) is formed in the front of the ventilation column (2), a mesh frame (202) is clamped in the ventilation groove (201), and a filter screen (203) is fixed in the mesh frame (202).

2. The elevator ventilation and noise reduction structure of claim 1, wherein: The umbrella-shaped baffle (101) is fixed on the car (1) by a supporting column, and the exhaust head (5) and the fan (6) are located below the umbrella-shaped baffle (101).

3. The elevator ventilation and noise reduction structure of claim 1, wherein: An air inlet and outlet (402) is fixed to the serpentine ventilation pipe (4), and the air inlet and outlet (402) is located in the ventilation groove (201).

4. The elevator ventilation and noise reduction structure of claim 1, wherein: Limiting grooves (204) are formed in the upper and lower surfaces of the mesh frame (202), limiting sliding grooves (3) are formed in the front of the ventilation column (2) and above and below the ventilation groove (201), a limiting bolt plate (302) is slidably installed in the limiting sliding groove (3), and the limiting bolt plate (302) is matched with the limiting groove (204).

5. The elevator ventilation and noise reduction structure of claim 4, wherein: A return spring (301) is fixed in the limiting sliding groove (3), the other end of the return spring (301) is fixedly connected with the limiting bolt plate (302), and a displacement handle (303) is fixed to the limiting bolt plate (302).

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