Ventilation structure of elevator ceiling

Abstract

The utility model relates to the technical field of elevator ventilation systems, and discloses an elevator ceiling ventilation structure which comprises an elevator car, a protection box is installed on the top face of the elevator car, a fan is fixedly installed in the protection box, a first air inlet pipe is fixedly installed on the right side face of the fan, and a second air inlet pipe is fixedly installed on the outer side face of the first air inlet pipe. A first air outlet pipe is fixedly installed on the left side face of the fan, and the end, away from the fan, of the first air outlet pipe is fixedly connected with a filtering purifier. By starting the fan, the fan can feed external air into the filtering purifier through the second air inlet pipe, and meanwhile, air in the elevator car can be conveyed into the filtering purifier through the first air inlet pipe; air can be output into the elevator car from the first connecting pipe, the second connecting pipe, the second air outlet pipe and other components in sequence after being filtered and purified in the air purifier, and therefore air circulation in the elevator car can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator ventilation systems, in particular to a ventilation structure for an elevator ceiling. Background Art

[0002] The elevator ventilation system is an indispensable part of modern elevator design, which involves the comfort of the elevator car environment, air quality and the safety and health of passengers. Traditional elevator ventilation mainly relies on a single fan installed on the car ceiling for ventilation. However, this design has many shortcomings, such as poor air circulation, significant seasonal changes in car temperature, poor air quality, etc. This paper proposes a ventilation structure for the elevator ceiling to solve the above problems.

[0003] According to the search, Chinese patent literature, announcement number: CN215570996U, discloses a ventilation structure for the ceiling of an elevator. The controller starts the refrigerator and turns off the heating tube. The refrigerator will lower the air inside the installation box, and then the air with the lowered temperature will be blown into the elevator through the air outlet, making the wind sent into the elevator more comfortable. While supplying air to the interior of the elevator, it also improves the comfort of passengers. However, the device cannot achieve effective circulation of the air inside the elevator car during the actual cooling or heating process, so it not only wastes a lot of energy, but also increases the operating burden and cost of the elevator; in addition, the refrigerator and heating tube of the device are installed inside the installation box, so after long-term use, it may cause the equipment to have a reduced operating efficiency and shorten its service life, and pose a safety risk to the operator and the surrounding environment, reducing the overall practicality of the device. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a ventilation structure for an elevator ceiling, which has the advantages of improving air quality, automatically heating or cooling according to the surrounding environment, effectively saving energy, and increasing the service life of equipment, thereby solving the above-mentioned technical problems.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a ventilation structure for an elevator ceiling, comprising an elevator car, a protective box fixedly installed on the top surface of the elevator car, a fan fixedly installed inside the protective box, a first air inlet duct fixedly installed on the right side of the fan, a second air inlet duct fixedly installed on the outer side of the first air inlet duct, a first air outlet duct fixedly installed on the left side of the fan, a filter-purifier fixedly connected to an end of the first air outlet duct away from the fan, a first connecting pipe fixedly installed on the front side of the filter-purifier, a refrigerator fixedly connected to an end of the first connecting pipe close to the left side of the elevator car, a heater fixedly connected to an end of the first connecting pipe close to the right side of the elevator car, a second connecting pipe fixedly installed on the front side of the heater, and a second air outlet duct fixedly installed on the outer side of the second connecting pipe.

[0008] Preferably, the end of the first air inlet pipe away from the fan and the bottom end of the second air outlet pipe are both installed inside the elevator car.

[0009] Through the above technical solution, when the fan is started, the fan can deliver external air to the interior of the filter purifier through the second air inlet pipe, and then the air can be output from the second air outlet pipe to the interior of the elevator car through the first connecting pipe and other parts, thereby effectively improving the air circulation in the elevator car; in addition, when the device is in internal circulation, the fan can also deliver the air inside the elevator car to the interior of the filter purifier through the first air inlet pipe, and after filtering and purifying, it can be discharged from the second air outlet pipe, thereby further improving the cleanliness of the air inside the elevator car and the comfort of the passengers.

[0010] Preferably, filter screens are installed inside the first air inlet pipe, the second air inlet pipe and the second air outlet pipe.

[0011] Through the above technical solution, when the fan draws air from the first air inlet duct or the second air inlet duct from the outside or inside the elevator car, the filter inside it can effectively filter out larger impurities such as dust in the air, and the filter inside the second air outlet duct can also prevent impurities from entering the interior of the device in reverse, thereby ensuring the normal operation of the device and increasing its overall service life.

[0012] Preferably, a temperature sensor is fixedly installed inside the elevator car, and a controller is fixedly installed inside the protection box.

[0013] Through the above technical solution, when the temperature sensor detects that the temperature inside the elevator car is high, it sends a signal to the controller, and the controller immediately starts the refrigerator, which can cool the air input in the first connecting pipe, and then transport it to the interior of the elevator car through the second connecting pipe and the second outlet pipe; similarly, when the temperature inside the elevator car is low, the controller can control the start of the heater to heat the air, thereby increasing the temperature inside the elevator car, thereby improving the overall practicality of the device.

[0014] Preferably, one end of the second connecting pipe away from the heater is fixedly connected to the front side of the refrigerator, and the first electric valve and the second electric valve are installed on the outer sides of the first connecting pipe and the second connecting pipe.

[0015] Through the above technical solution, when the controller starts the refrigerator for cooling, the controller simultaneously controls the opening of the first electric valve inside the first connecting pipe and the second connecting pipe, and the closing of the second electric valve inside the first connecting pipe and the second connecting pipe. At this time, when the air is output from the filter purifier, it can only enter the interior of the refrigerator through the position close to the left side of the first connecting pipe, and then the air cannot enter the position on the right side of the second connecting pipe when it is discharged through the left side. Similarly, when the controller starts the heater to heat the air, the controller controls the closing of the two first electric valves and the opening of the two second electric valves. The air can also only be heated and discharged through the right channel. Therefore, the heating component and the refrigeration component can be effectively separated, thereby improving the overall stability and service life of the device.

[0016] Preferably, a third electric valve is installed on the outer side of the second air inlet pipe.

[0017] Through the above technical solution, when the interior of the elevator car needs to be heated or cooled, the third electric valve can be controlled to close. At this time, the fan can completely transport the air inside the elevator car through the first air inlet pipe and heat or cool it. Since the air inside the elevator car has a certain temperature after heating or cooling, it can effectively reduce the energy consumption of the device and improve the overall economy.

[0018] Compared with the prior art, the utility model provides a ventilation structure for an elevator ceiling, which has the following beneficial effects:

[0019] 1. The utility model starts the fan, which can deliver external air to the interior of the filter purifier through the second air inlet pipe, and can also deliver the air inside the elevator car to the interior of the filter purifier through the first air inlet pipe. After the air is filtered and purified inside, it can be output to the interior of the elevator car from the first connecting pipe, the second connecting pipe, the second air outlet pipe and other components in sequence, thereby effectively improving the air circulation in the elevator car, improving the cleanliness of the air inside and the comfort of the passengers; in addition, multiple filters can also prevent impurities such as dust from entering the interior of the device, ensuring the normal operation of the device and improving the overall service life.

[0020] 2. The utility model can detect the temperature inside the elevator car through the temperature sensor. When the temperature is high, the signal is sent to the controller. The controller immediately starts the refrigerator and controls the opening of the first electric valve inside the first connecting pipe and the second connecting pipe, and closes the second electric valve inside the first connecting pipe and the second connecting pipe. At this time, when the air is output from the filter purifier, it can only enter the refrigerator through the position near the left side of the first connecting pipe. The refrigerator immediately cools the air, and then the air can be discharged to the inside of the second outlet pipe through the left side of the second connecting pipe; similarly, when the temperature inside the elevator car is low, the controller can control the start of the heater to heat the air. At the same time, the controller controls the closing of the two first electric valves and the opening of the two second electric valves. The air can also be heated and discharged only through the right channel, so the heating component and the cooling component can be effectively separated, which improves the overall stability and service life of the device; when the air is heated or cooled, the third electric valve can be controlled to be closed. At this time, the fan can completely transport and heat or cool the air inside the elevator car through the first air inlet pipe. Since the air inside the elevator car has a certain temperature after heating or cooling, it can effectively reduce the energy consumption of the device and improve the overall economy. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0022] Figure 2 It is a three-dimensional cross-sectional schematic diagram of the structural protection box and other parts of the utility model;

[0023] Figure 3 It is a three-dimensional cross-sectional schematic diagram of the first connecting pipe and other parts of the utility model structure.

[0024] Among them: 1. Elevator car; 2. Protection box; 3. Fan; 4. First air inlet pipe; 5. Second air inlet pipe; 6. First air outlet pipe; 7. Filter purifier; 8. First connecting pipe; 9. Refrigerator; 10. Heater; 11. Second connecting pipe; 12. Second air outlet pipe; 13. Filter; 14. Temperature sensor; 15. Controller; 16. First electric valve; 17. Second electric valve; 18. Third electric valve. DETAILED DESCRIPTION

[0025] 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.

[0026] See also Figure 1-3 A ventilation structure for an elevator ceiling comprises an elevator car 1, a protective box 2 is fixedly installed on the top surface of the elevator car 1, a fan 3 is fixedly installed inside the protective box 2, a first air inlet pipe 4 is fixedly installed on the right side of the fan 3, a second air inlet pipe 5 is fixedly installed on the outer side of the first air inlet pipe 4, a first air outlet pipe 6 is fixedly installed on the left side of the fan 3, a filter purifier 7 is fixedly connected to the end of the first air outlet pipe 6 away from the fan 3, a first connecting pipe 8 is fixedly installed on the front side of the filter purifier 7, a refrigerator 9 is fixedly connected to the end of the first connecting pipe 8 close to the left side of the elevator car 1, a heater 10 is fixedly connected to the end of the first connecting pipe 8 close to the right side of the elevator car 1, a second connecting pipe 11 is fixedly installed on the front side of the heater 10, and a second air outlet pipe 12 is fixedly installed on the outer side of the second connecting pipe 11.

[0027] Specifically, one end of the first air inlet pipe 4 away from the fan 3 and the bottom end of the second air outlet pipe 12 are both installed inside the elevator car 1. The advantage is that, through this structure, when the fan 3 is started, the fan 3 can send external air into the inside of the filter purifier 7 through the second air inlet pipe 5, and then the air can be output from the second air outlet pipe 12 to the inside of the elevator car 1 through the first connecting pipe 8 and other parts, so that the air circulation in the elevator car 1 can be effectively improved; in addition, when the device is in internal circulation, the fan 3 can also send the air inside the elevator car 1 to the inside of the filter purifier 7 through the first air inlet pipe 4, and it can be discharged from the second air outlet pipe 12 after filtering and purifying, so that the cleanliness of the air inside the elevator car 1 and the comfort of the passengers can be further improved.

[0028] Specifically, the first air inlet pipe 4, the second air inlet pipe 5 and the second air outlet pipe 12 are all equipped with filter screens 13. The advantage is that, through this structure, when the fan 3 draws air from the first air inlet pipe 4 or the second air inlet pipe 5 from the outside or the inside of the elevator car 1, the filter screen 13 inside can effectively filter out dust and other large impurities in the air, and the filter screen 13 inside the second air outlet pipe 12 can also prevent impurities from reversely entering the inside of the device, thereby ensuring the normal operation of the device and improving the overall service life.

[0029] Specifically, a temperature sensor 14 is fixedly installed inside the elevator car 1, and a controller 15 is fixedly installed inside the protective box 2. The advantage is that, through this structure, when the temperature sensor 14 detects that the temperature inside the elevator car 1 is high, it sends a signal to the controller 15, and the controller 15 immediately starts the refrigerator 9, and then the air input in the first connecting pipe 8 can be cooled and then transported to the inside of the elevator car 1 through the second connecting pipe 11 and the second air outlet pipe 12; similarly, when the temperature inside the elevator car 1 is low, the controller 15 can control the heater 10 to heat the air, thereby increasing the temperature inside the elevator car 1, thereby improving the overall practicality of the device.

[0030] Specifically, one end of the second connecting pipe 11 away from the heater 10 is fixedly connected to the front side of the refrigerator 9, and the outer sides of the first connecting pipe 8 and the second connecting pipe 11 are both installed with the first electric valve 16 and the second electric valve 17. The advantage is that, through this structure, when the controller 15 starts the refrigerator 9 for cooling, the controller 15 simultaneously controls to open the first electric valve 16 inside the first connecting pipe 8 and the second connecting pipe 11, and closes the second electric valve 17 inside the first connecting pipe 8 and the second connecting pipe 11. At this time, when the air is output from the filter purifier 7, it can only enter the refrigerator 9 through the position near the left side of the first connecting pipe 8, and then the air cannot enter the position on the right side when it is discharged through the left side of the second connecting pipe 11; similarly, when the controller 15 starts the heater 10 to heat the air, the controller 15 controls to close the two first electric valves 16 and open the two second electric valves 17, and the air can also only be heated and discharged through the right channel, so the heating component and the cooling component can be effectively separated, which improves the overall stability and service life of the device.

[0031] Specifically, a third electric valve 18 is installed on the outer side of the second air inlet duct 5. The advantage is that, through this structure, when the interior of the elevator car 1 needs to be heated or cooled, the third electric valve 18 can be controlled to be closed, and at this time, the fan 3 can completely transport the air inside the elevator car 1 through the first air inlet duct 4 and heat or cool it. Since the air inside the elevator car 1 has a certain temperature after being heated or cooled, the energy consumption of the device can be effectively reduced, and the overall economy can be improved.

[0032] When in use, start the fan 3, which can deliver external air to the inside of the filter purifier 7 through the second air inlet pipe 5, and can also deliver the air inside the elevator car 1 to the inside of the filter purifier 7 through the first air inlet pipe 4. After the air is filtered and purified inside, it can be output to the inside of the elevator car 1 from the first connecting pipe 8, the second connecting pipe 11 and the second air outlet pipe 12 in sequence, thereby effectively improving the air circulation in the elevator car 1, improving the cleanliness of the air inside it and the comfort of the passengers; in addition, the multiple filters 13 can also prevent dust and other impurities from entering the inside of the device, ensuring the normal operation of the device and improving the overall service life; the temperature inside the elevator car 1 can be detected by the temperature sensor 14, and when the temperature is high, a signal is sent to the controller 15, and the controller 15 immediately starts the refrigerator 9, and at the same time controls the opening of the first connecting pipe 8 and the second connecting pipe 11 The first electric valve 16 inside the first connecting pipe 8 and the second connecting pipe 11, and closes the second electric valve 17 inside the first connecting pipe 8 and the second connecting pipe 11. At this time, the air When the air is output from the filter purifier 7, it can only enter the interior of the refrigerator 9 through the first connecting pipe 8 near the left side, and the refrigerator 9 then cools the air, and then the air can be discharged to the interior of the second air outlet pipe 12 through the left side of the second connecting pipe 11; similarly, when the temperature inside the elevator car 1 is low, the controller 15 can control the start of the heater 10 to heat the air, and at the same time, the controller 15 controls the closing of the two first electric valves 16 and the opening of the two second electric valves 17, and the air can also only be heated and discharged through the right channel, so the heating component and the refrigeration component can be effectively separated, thereby improving the overall stability and service life of the device; when the air is heated or cooled, the third electric valve 18 can be controlled to be closed, and at this time, the fan 3 can completely transport and heat or cool the air inside the elevator car 1 through the first air inlet pipe 4. Since the air inside the elevator car 1 has a certain temperature after being heated or cooled, it can effectively reduce the energy consumption of the device and improve the overall economy.

[0033] 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. A ventilation structure for an elevator ceiling, comprising an elevator car (1), characterized in that: A protective box (2) is fixedly installed on the top surface of the elevator car (1), a fan (3) is fixedly installed inside the protective box (2), a first air inlet pipe (4) is fixedly installed on the right side of the fan (3), a second air inlet pipe (5) is fixedly installed on the outer side of the first air inlet pipe (4), a first air outlet pipe (6) is fixedly installed on the left side of the fan (3), an end of the first air outlet pipe (6) away from the fan (3) is fixedly connected to a filter purifier (7), a first connecting pipe (8) is fixedly installed on the front side of the filter purifier (7), an end of the first connecting pipe (8) close to the left side of the elevator car (1) is fixedly connected to a refrigerator (9), an end of the first connecting pipe (8) close to the right side of the elevator car (1) is fixedly connected to a heater (10), a second connecting pipe (11) is fixedly installed on the front side of the heater (10), and a second air outlet pipe (12) is fixedly installed on the outer side of the second connecting pipe (11).

2. The ventilation structure of an elevator ceiling according to claim 1, characterized in that: The end of the first air inlet pipe (4) away from the fan (3) and the bottom end of the second air outlet pipe (12) are both installed inside the elevator car (1).

3. The ventilation structure of an elevator ceiling according to claim 1, characterized in that: Filter screens (13) are installed inside the first air inlet pipe (4), the second air inlet pipe (5) and the second air outlet pipe (12).

4. The ventilation structure of an elevator ceiling according to claim 1, characterized in that: A temperature sensor (14) is fixedly installed inside the elevator car (1), and a controller (15) is fixedly installed inside the protection box (2).

5. The ventilation structure of an elevator ceiling according to claim 1, characterized in that: One end of the second connecting pipe (11) away from the heater (10) is fixedly connected to the front side of the refrigerator (9), and the outer sides of the first connecting pipe (8) and the second connecting pipe (11) are both installed with a first electric valve (16) and a second electric valve (17).

6. The ventilation structure of an elevator ceiling according to claim 1, characterized in that: A third electric valve (18) is installed on the outer side surface of the second air inlet pipe (5).

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