Lift car fresh air device for elevator

Abstract

The utility model discloses a lift car fresh air device for an elevator, and the lift car fresh air device comprises a power generation unit fixedly arranged at the top of a lift car, an energy storage device connected with the power generation unit, and a ventilation system connected with the energy storage device and used for ventilation of air inside and outside the lift car. When the elevator runs normally, the idler wheels make contact with the guide rails, energy is generated through rotation of the idler wheels, and therefore kinetic energy recovery of the elevator is achieved, an additional power source is not needed, energy conservation and environmental protection are achieved, and carbon emission is reduced; therefore, air circulation inside and outside the lift car is achieved, and people trapped in the lift car are prevented from breathing difficulty, faint, faint or other sudden physical conditions caused by unsmooth air circulation in the lift car.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator emergency, in particular to a car air freshener for an elevator. Background Art

[0002] An elevator is a vertical lift powered by an electric motor and equipped with a box-shaped cabin, used for carrying people or goods in multi-story buildings. It has a car that runs between at least two rows of vertical or rigid guide rails with an inclination angle of less than 15°.

[0003] Home elevators are generally smaller in area than regular passenger elevators. When the elevator loses power and people are trapped for a long time, the air flow is poor due to the small space in the cabin, which can easily cause people to have difficulty breathing, faint, or even other sudden physical conditions. Summary of the invention

[0004] In view of the deficiencies in the prior art, the utility model provides a car air freshener for an elevator which improves elevator safety and has stable operation.

[0005] In order to achieve the above objectives, the utility model is implemented through the following technical solutions.

[0006] The present application provides a car air-cleaning device for an elevator, comprising a power generation unit fixedly arranged on the top of the car, an energy storage device connected to the power generation unit, and a ventilation system connected to the energy storage device and used for air circulation inside and outside the car;

[0007] The power generation unit includes a generator connected to the energy storage device, a mounting frame fixedly arranged on the top of the car, and a roller rotatably arranged on the mounting frame and capable of abutting against the guide rail;

[0008] The generator is coupled to the roller and can convert the rotational potential energy of the roller into electrical energy, and the energy storage device can store the electrical energy output by the generator and provide energy for the ventilation system.

[0009] The utility model has at least the following beneficial effects:

[0010] When the elevator is operating normally, the rollers contact the guide rails and generate energy through the rotation of the rollers, thereby realizing the kinetic energy recovery of the elevator. No additional power supply is required, which is energy-saving and environmentally friendly, and reduces carbon emissions. The energy is stored in the energy storage device. When the elevator power outage occurs and people are trapped, the air freshener is started and the energy storage device supplies energy to the ventilation system, thereby achieving air circulation inside and outside the car, preventing the trapped people in the car from suffering from breathing difficulties, fainting, fainting or other sudden physical conditions due to poor air circulation in the car. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1This is a schematic diagram of the structure of an elevator car air freshener according to an embodiment of the present application;

[0012] Figure 2 This is a structural cross-sectional view of a "power generation unit 400" in an elevator car air freshener according to an embodiment of the present application;

[0013] Figure 3 This is a structural cross-sectional view of the "slide rail 472" portion of the elevator car air freshener used in the embodiment of the present application;

[0014] Figure 4 It is a partial cross-sectional view of the "fixing block 470" part of the elevator car air freshener used in the embodiment of the present application;

[0015] Figure 5 This is a structural cross-sectional view of the "tensioning device 460" in the "air freshener for an elevator car" of the embodiment of the present application.

[0016] Reference numerals

[0017] Car 100, exhaust fan 210, inlet fan 220, energy storage device 300, power generation unit 400, mounting frame 410, accommodating chamber 411, roller 420, first transmission shaft 421, first synchronous wheel 422, slide seat 423, synchronous belt 424, second synchronous wheel 425, second transmission shaft 426, guide groove 427, guide rod 428, coupling 430, reduction device 440, generator 4 50. Tensioning device 460, base 461, telescopic hole 462, sliding shaft 463, tensioning elastic member 464, connecting frame 465, rotating shaft 466, tensioning wheel 467, fixing block 470, positioning plate 471, sliding rail 472, guide hole 473, reset elastic member 474, first electromagnet 481, second electromagnet 482, shaft plate 490, guide rail 500, base plate 510, guide plate 520. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0019] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0020] The following is a detailed description of the elevator car air freshener provided by the embodiment of the present application through specific embodiments and application scenarios in conjunction with the accompanying drawings.

[0021] like Figures 1 to 5 As shown, an embodiment of the present application provides a car air purification device for an elevator, comprising a power generation unit 400 fixedly arranged on the top of a car 100, an energy storage device 300 connected to the power generation unit 400, and a ventilation system connected to the energy storage device 300 and used for air circulation inside and outside the car 100.

[0022] The power generation unit 400 includes a mounting frame 410 fixedly mounted on the top of the car 100 , on which a roller 420 capable of abutting against the guide rail 500 is rotatably mounted, and on which a generator 450 coupled to the roller 420 and connected to the energy storage device 300 is fixedly mounted.

[0023] When the car 100 is raised or lowered on the guide rail 500, the roller 420 can contact the guide rail 500 and rotate synchronously, the generator 450 can convert the rotational potential energy of the roller 420 into electrical energy and transmit it to the energy storage device 300, and the energy storage device 300 can provide energy for the ventilation system when the elevator fails.

[0024] In an embodiment of the present application, the above-mentioned air ventilation device for an elevator car is adopted. When the elevator is operating normally, the roller 420 contacts the guide rail 500 and generates energy through the rotation of the roller 420, thereby realizing kinetic energy recovery of the elevator. No additional power supply is required, energy saving and environmental protection are achieved, and carbon emissions are reduced. The energy is stored by the energy storage device 300. When the elevator power outage causes people to be trapped, the air ventilation device is started, and the energy storage device 300 supplies energy to the ventilation system, thereby realizing air circulation inside and outside the car 100, preventing the trapped people in the car 100 from suffering from breathing difficulties, fainting, syncope or other sudden physical conditions due to poor air circulation in the car 100.

[0025] In a preferred embodiment, Figure 1As shown, the ventilation system includes an exhaust fan 210 and an inlet fan 220 which are fixedly arranged on the top of the car 100 and are respectively connected to the energy storage device 300.

[0026] Among them, the exhaust fan 210 can discharge the air inside the car 100 to the outside of the car 100, and the inlet fan 220 can transport the air outside the car 100 to the inside of the car 100. Through the air convection inside the car 100, the air circulation speed inside the car 100 can be increased, thereby ensuring smooth breathing of the trapped people.

[0027] In a preferred embodiment, an air filter is provided on the exhaust fan 210 and / or the inlet fan 220. When the exhaust fan 210 and the inlet fan 220 are started to realize air circulation inside and outside the car 100, dust or particles in the circulating air can be filtered through the air filter, thereby ensuring the air quality inside the car 100.

[0028] In a preferred embodiment, the exhaust fan 210 and / or the inlet fan 220 uses low voltage DC12V, and the energy storage device 300 can be used for at least 2 hours after being fully stored.

[0029] In a preferred embodiment, Figure 1 , Figure 2 As shown, the guide rail 500 includes a base plate 510 and a guide plate 520 fixedly disposed on an end surface of the base plate 510 close to the car 100 and capable of abutting against the roller 420 .

[0030] In a preferred embodiment, Figure 2 , Figure 3 As shown, a receiving cavity 411 opening toward a side close to the guide rail 500 is provided in the mounting frame 410, and the power generation unit 400 also includes a slide 423 arranged on the inner wall of the receiving cavity 411, a first transmission shaft 421 is rotatably provided on the slide 423, and a roller 420 is fixedly arranged on one end of the first transmission shaft 421 close to the guide rail 500.

[0031] The power generation unit 400 further includes a reduction gear 440 fixedly disposed on the inner wall of the accommodating chamber 411 , wherein a power input end of the reduction gear 440 is coupled to the first transmission shaft 421 , and the power input end is connected to a power output end of the generator 450 .

[0032] It can be understood that when the elevator is running, the roller 420 abuts against the guide plate 520 and rotates as the elevator rises and falls. The rotation of the roller 420 drives the first transmission shaft 421 to rotate. The first transmission shaft 421 transmits kinetic energy to the generator 450 through the reduction device 440. The generator 450 converts the kinetic energy into electrical energy and transmits it to the energy storage device 300 for storage.

[0033] In a preferred embodiment, Figure 2 , Figure 3 As shown, a fixing block 470 and a positioning plate 471 are fixed on the inner wall of the accommodating cavity 411, a slide rail 472 parallel to the base plate 510 is fixed between the fixing block 470 and the positioning plate 471, the slide seat 423 is elastically slidably set on the slide rail 472, and an electromagnetic component is provided between the fixing block 470 or the positioning plate 471 and the slide seat 423.

[0034] A first synchronous wheel 422 is fixedly provided on the end of the first transmission shaft 421 away from the roller 420, and an axis plate 490 is also fixedly provided on the inner wall of the accommodating chamber 411. A second transmission shaft 426 parallel to the first transmission shaft 421 is rotatably provided on the axis plate 490. A second synchronous wheel 425 is fixedly provided on the end of the second transmission shaft 426 away from the guide rail 500, and the end close to 200 is connected to the power input end of the reduction device 440 through a coupling 430, and a synchronous belt 424 is wound around the second synchronous wheel 425 and the first synchronous wheel 422.

[0035] A tensioning device 460 for adjusting the tension of the synchronous belt 424 is fixedly provided on the inner wall of the accommodating cavity 411 .

[0036] When the energy storage device 300 is not fully charged, the electromagnetic component is not started, and the slide 423 is located on the side of the slide rail 472 closer to the guide plate 520 under the action of its own elastic potential energy, and the roller 420 is in contact with the guide plate 520. At this time, the kinetic energy can be recovered by the rotation of the roller 420 during the operation of the elevator; when the energy storage device 300 is fully charged, the electromagnetic component is started, and the slide 423 overcomes its own elastic potential energy and moves away from the guide plate 520 under the action of the magnetic force of the electromagnetic component, and the roller 420 is separated from the guide plate 520. At this time, the roller 420 rotates asynchronously during the operation of the elevator.

[0037] It is understandable that by driving the roller 420 to separate from the guide rail 500 through the electromagnetic component, on the one hand, overcharging of the energy storage device 300 can be avoided, and on the other hand, wear between the roller 420 and the guide rail 500 can be reduced, thereby increasing the overall service life of the device.

[0038] It is understandable that when the roller 420 adjusts its relative position with the guide rail 500 , the tensioning device 460 can adjust the tension of the synchronous belt 424 , thereby preventing the synchronous belt 424 from being too loose or too tight, thereby ensuring transmission stability.

[0039] It is understandable that when the rotation speed of the roller 420 is too fast, the synchronous belt 424 may slip on the first synchronous wheel 422 and the second synchronous wheel 425, thereby preventing the generator 450 from malfunctioning due to excessively fast kinetic energy input.

[0040] In a preferred embodiment, Figures 2 to 4As shown, the slide rail 472 is fixedly disposed on the bottom wall of the accommodating cavity 411 , and a guide groove 427 slidably connected to the slide rail 472 is fixedly disposed on an end surface of the slide seat 423 close to the bottom wall of the accommodating cavity 411 .

[0041] In a preferred embodiment, Figures 2 to 4 As shown, the electromagnetic assembly includes a first electromagnet 481 fixedly disposed on an end surface of the fixed block 470 close to the slide 423 , and a second electromagnet 482 fixedly disposed on an end surface of the slide 423 close to the fixed block 470 and capable of being attracted to the first electromagnet 481 .

[0042] The electromagnetic assembly is powered by the energy storage device 300 . When the energy storage device 300 is fully charged, the first electromagnet 481 and the second electromagnet 482 are controlled to be attracted, thereby driving the roller 420 to separate from the guide plate 520 .

[0043] It can be understood that the closing threshold of the electromagnetic component is when the power reserve of the energy storage device 300 is reduced to 80% (or other preset values, such as 60%, 70%, as long as it can ensure that the margin of the energy storage device 300 can support the emergency work of the ventilation system, which will not be elaborated here), that is, when the power reserve of the energy storage device 300 is reduced to 80%, the first electromagnet 481 and the second electromagnet 482 are released from attraction, the roller 420 abuts against the guide rail 500 and recharges the energy storage device 300.

[0044] In a preferred embodiment, Figure 4 As shown, a guide rod 428 is fixedly provided on the end surface of the sliding seat 423 close to the fixed block 470, and a guide hole 473 slidably connected to the guide rod 428 is provided at a position corresponding to the guide rod 428 on the end surface of the fixed block 470 close to the sliding seat 423, and a reset elastic member 474 is provided between the end of the guide rod 428 away from the sliding seat 423 and the bottom wall of the guide hole 473 at the corresponding position.

[0045] It can be understood that when the electromagnetic component drives the slide 423 to move toward the side close to the fixed block 470, the guide rod 428 and the guide hole 473 cooperate to guide the slide 423 to move further, and at the same time the reset elastic member 474 compresses and accumulates elastic potential energy. When the electromagnetic component is closed, the slide 423 can be reset under the action of the elastic potential energy of the reset elastic member 474, thereby realizing the abutment between the roller 420 and the guide rail 500.

[0046] In a preferred embodiment, Figure 2 , Figure 4 As shown, two guide rods 428 are symmetrically and fixedly provided on the slide seat 423 with respect to the slide rail 472 , and two guide holes 473 are provided on the fixing block 470 corresponding to the two guide rods 428 .

[0047] It can be understood that, through the sliding cooperation between the two groups of guide rods 428 and the guide holes 473 , the force on the slide seat 423 can be evenly distributed, thereby improving the movement reliability of the slide seat 423 .

[0048] In a preferred embodiment, Figure 5 As shown, the tensioning device includes a connecting frame 465 which is arranged on the bottom wall of the accommodating cavity 411 and can be elastically extended and retracted in the length direction of the guide rail 500. A tensioning wheel 467 which can abut against the outer annular surface of the synchronous belt 424 is rotatably provided on the connecting frame 465.

[0049] It can be understood that when the roller 420 adjusts its relative position with the guide rail 500, the synchronous belt 424 is relaxed or tightened as the relative distance between the first synchronous wheel 422 and the second synchronous wheel 425 changes. When the synchronous belt 424 is relaxed, the tensioning wheel 467 can rise and contact the outer ring surface of the synchronous belt 424, thereby increasing the tension of the synchronous belt 424; when the synchronous belt 424 is tight, the tensioning wheel 467 descends under the action of the tensioning force of the synchronous belt 424, thereby reducing the tension of the synchronous belt 424.

[0050] In the embodiment of the present application, the above-mentioned elevator car air freshener is adopted, and the tensioning device can ensure that the synchronous belt 424 is always in a state of appropriate tension, thereby ensuring the reliability of transmission between the first synchronous wheel 422 and the second synchronous wheel 425.

[0051] In a preferred embodiment, Figure 5 As shown, a rotating shaft 466 parallel to the first transmission shaft 421 is rotatably provided on the connecting frame 465 , and a tensioning wheel 467 is fixedly arranged on the rotating shaft 466 .

[0052] In a preferred embodiment, Figure 5 As shown, the tensioning device also includes a base 461 fixedly arranged on the bottom wall of the accommodating chamber 411, and a telescopic hole 462 is provided on the end surface of the base 461 away from the bottom wall of the accommodating chamber 411, and a sliding shaft 463 is slidably provided in the telescopic hole 462. The sliding shaft 463 is fixedly connected to the connecting frame 465 at one end away from the bottom wall of the accommodating chamber 411, and a tensioning elastic member 464 is provided between the end close to the accommodating chamber 411 and the bottom wall of the telescopic hole 462.

[0053] It is understandable that the tensioning elastic member 464 can realize elastic lifting and lowering of the tensioning wheel 467 , thereby realizing the resistance of the tensioning wheel 467 to the synchronous belt 424 and the adjustment of the tension.

[0054] In a preferred embodiment, the reset elastic member 474 and / or the tension elastic member 464 are specifically configured as springs.

[0055] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0056] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A car air-cleaning device for an elevator, characterized in that: It includes a power generation unit fixedly arranged on the top of the car, an energy storage device connected to the power generation unit, and a ventilation system connected to the energy storage device and used for air circulation inside and outside the car; The power generation unit includes a generator connected to the energy storage device, a mounting frame fixedly arranged on the top of the car, and a roller rotatably arranged on the mounting frame and capable of abutting against the guide rail; The generator is coupled to the roller and can convert the rotational potential energy of the roller into electrical energy, and the energy storage device can store the electrical energy output by the generator and provide energy for the ventilation system.

2. The elevator car air freshener according to claim 1, characterized in that: The ventilation system comprises an exhaust fan and an inlet fan which are fixedly arranged on the top of the car and are respectively connected to the energy storage device.

3. The elevator car air freshener according to claim 2, characterized in that: The exhaust fan and / or the inlet fan are provided with an air filter.

4. The elevator car air freshener according to claim 1, characterized in that: The mounting frame is provided with a receiving cavity opened toward a side close to the guide rail, the power generation unit further comprises a slide seat arranged on the inner wall of the receiving cavity, a first transmission shaft rotatably arranged on the slide seat, and the roller is fixedly arranged at one end of the first transmission shaft close to the guide rail; A reduction device is fixedly provided on the inner wall of the accommodating cavity, a power input end of the reduction device is coupled to the first transmission shaft, and the power input end is connected to the power output end of the generator.

5. The elevator car air freshener according to claim 4, characterized in that: A fixing block and a positioning plate are fixedly provided on the inner wall of the accommodating cavity, a slide rail parallel to the base plate is fixedly provided between the fixing block and the positioning plate, the slide seat is elastically slidably provided on the slide rail, and an electromagnetic component is provided between the fixing block or the positioning plate and the slide seat; A first synchronous wheel is fixedly provided at one end of the first transmission shaft away from the roller, an axis plate is also fixedly provided on the inner wall of the accommodating cavity, a second transmission shaft parallel to the first transmission shaft is rotatably provided on the axis plate, a second synchronous wheel is fixedly provided at one end of the second transmission shaft away from the guide rail, and an end close to the guide rail is connected to the power input end of the reduction device through a coupling, a synchronous belt is wound between the second synchronous wheel and the first synchronous wheel, and the power generation unit further includes a tensioning device for adjusting the tension of the synchronous belt; Wherein, when the electromagnetic component is not started, the roller abuts against the guide rail, and when the electromagnetic component is started, the roller is separated from the guide rail.

6. The elevator car air freshener according to claim 5, characterized in that: The electromagnetic assembly comprises a first electromagnet fixedly arranged on an end surface of a fixed block close to a sliding seat, and a second electromagnet fixedly arranged on an end surface of a sliding seat close to a fixed block and capable of being attracted to the first electromagnet.

7. An elevator car air freshener according to claim 5 or 6, characterized in that: A guide rod is fixedly arranged on the end surface of the sliding seat close to the fixed block, and a guide hole slidably connected to the guide rod is arranged on the end surface of the fixed block close to the sliding seat at a position corresponding to the guide rod; Wherein, a reset elastic member is provided between one end of the guide rod away from the slide seat and the bottom wall of the guide hole at a corresponding position.

8. The elevator car air freshener according to claim 7, characterized in that: Two guide rods are symmetrically and fixedly provided on the slide seat with respect to the slide rail, and two guide holes are correspondingly provided on the fixed block with respect to the two guide rods.

9. An elevator car air freshener according to claim 5 or 6, characterized in that: The tensioning device comprises a connecting frame which is arranged on the bottom wall of the accommodating cavity and can be elastically extended and retracted in the length direction of the guide rail, and a tensioning wheel which can abut against the outer annular surface of the synchronous belt is rotatably provided on the connecting frame.

10. The elevator car air freshener according to claim 9, characterized in that: The tensioning device also includes a base fixedly arranged on the bottom wall of the accommodating cavity, and a telescopic hole is provided on an end surface of the base away from the bottom wall of the accommodating cavity, and a sliding shaft is slidably arranged in the telescopic hole; The sliding shaft is fixedly connected to the connecting frame at one end away from the bottom wall of the accommodating cavity, and a tensioning elastic member is arranged between the one end close to the accommodating cavity and the bottom wall of the telescopic hole.

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