Ventilation device for elevator

Abstract

The utility model provides an elevator ventilation device which comprises a motor and a ventilation mechanism, a fan motor is started to drive a rotary fan to operate, air flow enters from the outside of an elevator through a long-strip hole of an air inlet channel, and the air flow is blown downwards from the upper side of the rotary fan to form continuous air flow. Air flow downwards flows in the air inlet channel, is divided into four groups in the outward direction through the flow dividing channel and enters the trapezoidal air channel, the air flow is dispersed, the air flow in the trapezoidal air channel is changed in direction and flows downwards through the flow guide groove, and finally the air flow flows out through the long-strip-shaped holes of the ventilation plate through the air outlet channel. Airflow is dispersed and blown out downwards from the edge of the car top plate through the four groups of diversion channels, the airflow strength is reduced, the cross section is increased, the comfort of passengers is improved, the airflow at the top of the car can flow out of the elevator through long-strip holes in the car air outlet side plate at the bottom, circulation of inlet and outlet airflow is completed by the elevator, peculiar smell residues in the elevator are avoided, and the elevator safety is improved. The air temperature in the elevator is kept constant, and the good and effective ventilation effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator equipment, in particular to an elevator ventilation device. Background Art

[0002] A ventilation device needs to be installed on the top of an elevator car. The ventilation device inputs air into the elevator car to ensure fresh air inside the elevator car. In the problem of ventilation inside the elevator, in order to ensure the breathing air quality of the internal personnel and prevent the residue of germs caused by the long-term sealing inside the elevator, ventilation is usually carried out through the elevator shaft interface and the opening and closing doors at the top.

[0003] According to the search, a ventilation device for an elevator with the publication number of CN221253533U includes an elevator frame and a welding plate fixedly installed on the top thereof. Square openings are formed in the middle of the welding plate and on both sides of the bottom of the elevator frame. An air intake net is fixed in the middle of the welding plate, and two air outlet nets are fixed to the bottom of the inner wall of the elevator frame. The air intake net and the two air outlet nets respectively cover the three square openings. Multiple partition plates are fixed to the inner wall of the elevator frame. A fixed bearing is fixed in a through hole formed on one side of the partition plate, and a transmission shaft is fixedly penetrated through the middle of the fixed bearing. In the utility model, two fan blades are arranged in the air channels formed by the three partition plates. The spiral directions of the two fan blades are opposite, so that the rotation of the two fan blades forms opposite flow directions of the air flow, and the air flow flows along both sides of the partition plate. Moreover, the rotation speeds of the two fan blades are different, so that the air flow is accelerated twice in the air channel, and the air flow flows at a high speed in the air channel, having the advantage of high ventilation efficiency.

[0004] However, when implementing the above technical solutions, the following problems exist: In the above technical solutions, multiple groups of rotating fan blades are used to accelerate the air flow, and the air flow flows in multiple groups of partition plates. The air flow needs to change the flow direction multiple times inside, which does not conform to the relevant aerodynamic design rules, is easy to generate multiple groups of eddy currents inside, the unidirectional flow effect of the air is not good, and the air flow cannot flow out dispersedly inside the elevator. The air inlet and outlet circulation of the air flow cannot be realized inside the elevator, the odor cannot be effectively discharged and the air cannot be circulated effectively, and the air flow with a sufficient cross-section cannot be effectively generated for the passengers at different positions, and the ventilation effect is limited. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a ventilation device for an elevator to solve the problems in the above background art.

[0006] To achieve the above object, the present utility model provides the following technical solutions: It includes a fan motor and a ventilation mechanism. Motor brackets are provided on both sides of the fan motor. A motor cover plate is provided at the bottom of the fan motor. A ventilation mechanism is provided at the bottom of the fan motor. A rotary fan is provided at the bottom of the fan motor. An air inlet channel is provided at the bottom of the motor cover plate. A flow splitting channel is provided at the bottom of the air inlet channel. A trapezoidal air duct is provided outside the flow splitting channel. A diversion groove is provided outside the trapezoidal air duct. An air outlet channel is provided at the bottom of the diversion groove. A ventilation plate is provided at the bottom of the air outlet channel. A lamp slot is provided in the center of the ventilation plate. Fixed clamping plates are provided outside the ventilation plate. A car top plate is provided outside the fixed clamping plates. An elevator car is provided at the bottom of the car top plate. A car air outlet side plate is provided at the center of the bottom of the elevator car.

[0007] Preferably, the fan motor is fixedly connected to the motor brackets. The fan motor is sleeved with the motor cover plate. The motor brackets are fixedly connected to the motor cover plate.

[0008] Preferably, the fan motor passes through the motor cover plate and is rotationally connected to the rotary fan. The motor cover plate and the air inlet channel are bolted together. Long strip holes are provided on four sides of the air inlet channel.

[0009] Preferably, the air inlet channel is fixedly connected to the flow splitting channel. Four groups of flow splitting channels are provided. The air inlet channel and the flow splitting channel are of matching sizes. The flow splitting channel is fixedly connected to the trapezoidal air duct. The flow splitting channel and the trapezoidal air duct are of matching sizes. The flow splitting channels and the trapezoidal air ducts are in one-to-one correspondence.

[0010] Preferably, the trapezoidal air duct is fixedly connected to the diversion groove. The trapezoidal air duct and the diversion groove are of matching sizes. The diversion groove is fixedly connected to the air outlet channel. The diversion groove and the air outlet channel are of matching sizes. The air outlet channel and the ventilation plate are bolted together. The air outlet channels and the ventilation plates are in one-to-one correspondence. Four groups of ventilation plates are provided.

[0011] Preferably, the air outlet channel and the lamp slot are connected by a card slot. The ventilation plate and the fixed clamping plates are connected by a card slot. The fixed clamping plates and the car top plate are connected by a card slot.

[0012] Preferably, the car top plate and the elevator car are bolted together. The elevator car and the car air outlet side plate are connected by a card slot. Three groups of car air outlet side plates are provided. Multiple long strip holes are provided on the car air outlet side plates.

[0013] Compared with the prior art, the beneficial effects of the present utility model are:

[0014] The fan motor on the motor support starts, driving the rotary fan at the bottom of the motor cover plate to operate. Airflow enters the air inlet channel from the long holes of the air inlet channel through the outside of the elevator. Under the action of the blades, it blows downward from the upper side of the rotary fan to form a continuous airflow. The airflow generated by the rotary fan flows downward in the air inlet channel. The airflow is divided into four groups in the outward direction through the diversion channel and enters the trapezoidal air duct. The four diversion channels and the trapezoidal air duct disperse the airflow generated by the rotary fan, reducing the airflow intensity and improving the comfort of passengers. The diversion groove changes the direction of the airflow in the trapezoidal air duct to flow downward. Finally, the airflow flows out through the long holes of the ventilation plate via the air outlet channel. The airflow is dispersed and blown downward from the four edges of the car roof, reducing the airflow intensity and increasing the airflow cross-section, so that passengers can feel the airflow when there are many people. The ventilation and air exchange of the elevator passenger environment are completed. The downward airflow generated by the ventilation mechanism at the top of the elevator car can flow out of the elevator through the long holes of the side air outlet plate at the bottom of the car. The elevator completes the circulation of the incoming and outgoing airflow, avoiding the remaining odor in the elevator and keeping the temperature inside the elevator constant, achieving a good and effective ventilation and air exchange effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall external structure of the present invention;

[0016] Figure 2 is a schematic diagram of the external structure of the top of the ventilation mechanism of the present invention;

[0017] Figure 3 is a schematic diagram of the external structure of the bottom of the ventilation mechanism of the present invention;

[0018] Figure 4 is a schematic diagram of the top structure of the partial structure of the present invention;

[0019] Figure 5 is a schematic diagram of the external structure of the bottom of the partial structure of the present invention;

[0020] Figure 6 is a schematic diagram of the partial internal structure of the present invention.

[0021] Reference numerals in the figures: 1, fan motor; 2, motor support; 3, motor cover plate; 4, ventilation mechanism; 401, rotary fan; 402, air inlet channel; 403, diversion channel; 404, trapezoidal air duct; 405, diversion groove; 406, air outlet channel; 407, ventilation plate; 5, lamp slot; 6, fixed clamping plate; 7, car roof; 8, elevator car; 9, side air outlet plate of the car. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figure 1-6 , the present utility model provides a technical solution: an elevator ventilation device, including a fan motor 1 and a ventilation mechanism 4. Motor brackets 2 are arranged on both sides of the fan motor 1, a motor cover plate 3 is arranged at the bottom of the fan motor 1, a ventilation mechanism 4 is arranged at the bottom of the fan motor 1, a rotary fan 401 is arranged at the bottom of the fan motor 1, an air inlet channel 402 is arranged at the bottom of the motor cover plate 3, a flow splitting channel 403 is arranged at the bottom of the air inlet channel 402, a trapezoidal air duct 404 is arranged outside the flow splitting channel 403, a diversion groove 405 is arranged outside the trapezoidal air duct 404, an air outlet channel 406 is arranged at the bottom of the diversion groove 405, a ventilation plate 407 is arranged at the bottom of the air outlet channel 406, a lamp slot 5 is arranged in the center of the ventilation plate 407, a fixed clamping plate 6 is arranged outside the ventilation plate 407, a car roof plate 7 is arranged outside the fixed clamping plate 6, an elevator car 8 is arranged at the bottom of the car roof plate 7, and a car air outlet side plate 9 is arranged at the center of the bottom of the elevator car 8.

[0024] Furthermore, the fan motor 1 is fixedly connected to the motor bracket 2, the fan motor 1 is sleeved with the motor cover plate 3, the motor bracket 2 is fixedly connected to the motor cover plate 3. When the fan motor 1 on the motor bracket 2 starts, it drives the rotary fan 401 at the bottom of the motor cover plate 3 to operate, and other elevator structures and accessories can be installed and placed on the top of the motor cover plate 3.

[0025] Furthermore, the fan motor 1 passes through the motor cover plate 3 and is rotationally connected to the rotary fan 401. The motor cover plate 3 is bolted to the air inlet channel 402. Long strip holes are opened on the four sides of the air inlet channel 402. When the rotary fan 401 rotates, air flows into the air inlet channel 402 from the long strip holes of the air inlet channel 402 from the outside of the elevator, and is blown downward from the upper side of the rotary fan 401 under the action of the blades to form a continuous air flow, providing a good ventilation environment for the elevator.

[0026] Further, the air inlet channel 402 and the flow splitting channel 403 are fixedly connected. There are four groups of flow splitting channels 403. The air inlet channel 402 and the flow splitting channel 403 are of matching sizes. The flow splitting channel 403 and the trapezoidal air duct 404 are fixedly connected. The flow splitting channel 403 and the trapezoidal air duct 404 are of matching sizes. The flow splitting channels 403 and the trapezoidal air ducts 404 are in one-to-one correspondence. The air flow generated by the rotary fan 401 flows downward in the air inlet channel 402. The air flow is divided into four groups in the outward direction through the flow splitting channel 403 and enters the trapezoidal air duct 404. The four groups of flow splitting channels 403 and the trapezoidal air ducts 404 disperse the air flow generated by the rotary fan 401, reducing the air flow intensity and improving the comfort of the passengers.

[0027] Further, the trapezoidal air duct 404 and the diversion channel 405 are fixedly connected. The trapezoidal air duct 404 and the diversion channel 405 are of matching sizes. The diversion channel 405 and the air outlet channel 406 are fixedly connected. The diversion channel 405 and the air outlet channel 406 are of matching sizes. The air outlet channel 406 and the ventilation plate 407 are bolted. The air outlet channel 406 and the ventilation plate 407 are in one-to-one correspondence. There are four groups of ventilation plates 407. The diversion channel 405 changes the direction of the air flow in the trapezoidal air duct 404 to flow downward. Finally, the air flow flows out through the long holes of the ventilation plate 407 via the air outlet channel 406. The air flow is dispersed and blown downward from the four edges of the car roof 7, reducing the air flow intensity, increasing the air flow cross-section, enabling more passengers to feel the air flow, and completing the ventilation and air change of the environment for the elevator passengers.

[0028] Further, the air outlet channel 406 and the lamp slot 5 are connected by a card slot. The ventilation plate 407 and the fixed card plate 6 are connected by a card slot. The fixed card plate 6 and the car roof 7 are connected by a card slot. The centrally reserved lamp slot 5 can be used to install elevator lighting equipment in the later stage. The ventilation mechanism 4 is installed on the car roof 7 through the fixed card plate 6.

[0029] Further, the car roof 7 and the elevator car 8 are bolted. The elevator car 8 and the car air outlet side plate 9 are connected by a card slot. There are three groups of car air outlet side plates 9. The car air outlet side plates 9 are provided with multiple long holes. The elevator car 8 carries passengers. The downward air flow generated by the ventilation mechanism 4 at the top of the elevator car 8 can flow out of the elevator through the long holes of the bottom car air outlet side plate 9. The elevator completes the circulation of the incoming and outgoing air flows, avoids the residual odor inside the elevator, keeps the temperature inside the elevator constant, and achieves a good and effective ventilation and air change effect.

[0030] Working principle: First, the fan motor 1 on the motor bracket 2 starts, driving the rotating fan 401 at the bottom of the motor cover plate 3 to operate. Other elevator structures and accessories can be installed and placed on the top of the motor cover plate 3. As the rotating fan 401 rotates, the air flow enters the air inlet channel 402 from the long holes of the air inlet channel 402 outside the elevator. Under the action of the blades, it blows downward from the upper side of the rotating fan 401 to form a continuous air flow, providing a good ventilation and air exchange environment for the elevator. The air flow generated by the rotating fan 401 flows downward in the air inlet channel 402, and then the air flow is divided into four groups in the outward direction through the shunt channel 403 and enters the trapezoidal air duct 404. The four-group shunt channel 403 and the trapezoidal air duct 404 disperse the air flow generated by the rotating fan 401, reducing the air flow intensity and improving the comfort of the passengers. The diversion channel 405 changes the direction of the air flow in the trapezoidal air duct 404 and makes it flow downward. Finally, the air flow flows out through the long holes of the ventilation plate 407 via the air outlet channel 406. Finally, the air flow disperses and blows downward from the four edges of the car roof 7, reducing the air flow intensity, increasing the air flow cross-section, and enabling more passengers to feel the air flow. The ventilation and air exchange of the environment for elevator passengers is completed. The centrally reserved lamp slot 5 can be used to install elevator lighting equipment in the later stage. The ventilation mechanism 4 is installed on the car roof 7 through the fixed clamping plate 6. The elevator car 8 is for passengers to ride in. The downward air flow generated by the ventilation mechanism 4 on the top of the elevator car 8 can flow out of the elevator through the long holes of the bottom car air outlet side plate 9. The elevator completes the circulation of the incoming and outgoing air flows, avoids the residual odor in the elevator, keeps the temperature inside the elevator constant, and achieves a good and effective ventilation and air exchange effect. In this way, the use process of an elevator ventilation and air exchange device is completed.

[0031] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An elevator ventilation device, comprising a fan motor (1) and a ventilation mechanism (4), characterized in that: On both sides of the fan motor (1), there are motor brackets (2). At the bottom of the fan motor (1), there is a motor cover plate (3). At the bottom of the fan motor (1), there is a ventilation mechanism (4). At the bottom of the fan motor (1), there is a rotating fan (401). At the bottom of the motor cover plate (3), there is an air inlet channel (402). At the bottom of the air inlet channel (402), there is a flow dividing channel (403). Outside the flow dividing channel (403), there is a trapezoidal air duct (404). Outside the trapezoidal air duct (404), there is a diversion groove (405). At the bottom of the diversion groove (405), there is an air outlet channel (406). At the bottom of the air outlet channel (406), there is a ventilation plate (407). In the center of the ventilation plate (407), there is a lamp slot (5). Outside the ventilation plate (407), there is a fixed clamping plate (6). Outside the fixed clamping plate (6), there is a car top plate (7). At the bottom of the car top plate (7), there is an elevator car (8). In the center of the bottom of the elevator car (8), there is a car air outlet side plate (9).

2. The elevator ventilation device according to claim 1, characterized in that: Between the fan motor (1) and the motor bracket (2), it is a fixed connection. Between the fan motor (1) and the motor cover plate (3), it is a socket connection. Between the motor bracket (2) and the motor cover plate (3), it is a fixed connection.

3. The elevator ventilation device according to claim 1, characterized in that: The fan motor (1) passes through the motor cover plate (3) and is rotationally connected to the rotating fan (401). Between the motor cover plate (3) and the air inlet channel (402), it is a bolt connection. The four sides of the air inlet channel (402) are provided with long holes.

4. A ventilation device for an elevator according to claim 1, characterized in that: Between the air inlet channel (402) and the flow dividing channel (403), it is a fixed connection. There are four groups of the flow dividing channels (403). The air inlet channel (402) and the flow dividing channel (403) are of matching sizes. Between the flow dividing channel (403) and the trapezoidal air duct (404), it is a fixed connection. The flow dividing channel (403) and the trapezoidal air duct (404) are of matching sizes. The flow dividing channel (403) and the trapezoidal air duct (404) are in one-to-one correspondence.

5. The elevator ventilation device according to claim 1, characterized in that: Between the trapezoidal air duct (404) and the diversion groove (405), it is a fixed connection. The trapezoidal air duct (404) and the diversion groove (405) are of matching sizes. Between the diversion groove (405) and the air outlet channel (406), it is a fixed connection. The diversion groove (405) and the air outlet channel (406) are of matching sizes. Between the air outlet channel (406) and the ventilation plate (407), it is a bolt connection. The air outlet channel (406) and the ventilation plate (407) are in one-to-one correspondence. There are four groups of the ventilation plates (407).

6. The elevator ventilation device according to claim 1, characterized in that: Between the air outlet channel (406) and the lamp slot (5), it is a clamping connection. Between the ventilation plate (407) and the fixed clamping plate (6), it is a clamping connection. Between the fixed clamping plate (6) and the car top plate (7), it is a clamping connection.

7. The elevator ventilation device according to claim 1, wherein: The car top plate (7) is bolted to the elevator car (8), and the elevator car (8) is connected to the car air outlet side plate (9) by a card slot. There are three groups of the car air outlet side plates (9), and the car air outlet side plates (9) are provided with multiple long strip holes.

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