An elevator energy recovery device and recovery method

Abstract

The present invention belongs to the technical field of mechanical engineering, and specifically relates to an elevator energy recovery device and a recovery method, which includes an elevator base; four support steel columns are fixedly connected to the top of the elevator base; the top ends of the support steel columns are fixedly connected to a support top plate; a traction machine is installed on the top of the support top plate; an elevator car is arranged between the elevator base and the support top plate; a traction rope is arranged between the traction machine and a pulley on the top of the elevator car; through the structural design that when the elevator car moves downward under the influence of gravitational potential energy, it can drive the positioning block to move downward, and then drive the driven ratchet to rotate through the blocking of the reverse toothed plate, it realizes that during the operation of the elevator, electric energy can be generated by the driven ratchet, and then provide energy for the ventilation fan and lighting system inside the elevator car, effectively solving the problem that traditional elevators do not reasonably utilize gravitational potential energy for energy recovery.

Description

Technical Field

[0001] The present invention belongs to the technical field of mechanical engineering, and specifically relates to an elevator energy recovery device and a recovery method. Background Art

[0002] An elevator is a fixed lifting device that uses a permanent magnet synchronous traction machine as power. Through the friction between the cable and the traction machine, it cooperates with the rollers on the top of the elevator car, and then realizes the lifting and lowering of the elevator car through the rotation of the traction machine. Elevators are usually installed inside buildings to transport people and goods inside the buildings. Since a large amount of energy is easily lost during the driving process of the elevator, it is necessary to recover the energy.

[0003] Currently, in the prior art, various methods for elevator energy recovery have been proposed. For example, a Chinese patent with the publication number CN108869218A discloses an elevator rope energy collection device. This energy collection device uses an energy collection module composed of a main machine, an energy collection terminal, and a contact block to collect the horizontal jitter generated by the elevator traction steel wire rope during high-speed operation of the elevator, as well as the waveform movement after the steel wire rope vibrates. The energy is collected through the energy collection terminal and converted into recoverable electrical energy for storage in the main machine, and then the energy is collected into the battery for storage to supply the operation consumption of the elevator, realizing the function of reducing the energy consumption of the elevator.

[0004] In the above technical solution, the problem of the lack of an energy recovery device on the elevator is solved by using an energy collection module to collect the energy generated by the jitter and waveform movement of the traction rope during elevator operation and converting it into recoverable electrical energy. However, this solution ignores the fact that during the elevator's descent, the gravitational potential energy of the elevator car can also be utilized, resulting in the problem of insufficient energy recovery.

[0005] Therefore, the present invention provides an elevator energy recovery device and a recovery method. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art and solve at least one of the technical problems proposed in the background art.

[0007] The technical solution adopted by the present invention to solve its technical problems is as follows: An elevator energy recovery device described in the present invention includes an elevator base; four support steel columns are fixedly connected to the top of the elevator base; the top ends of the support steel columns are fixedly connected to a support top plate; a traction machine is installed on the top of the support top plate; an elevator car is provided between the elevator base and the support top plate; a traction rope is provided between the traction machine and a pulley on the top of the elevator car; a support side plate is fixedly connected between the elevator base and the support top plate; an energy recovery assembly is provided on the side wall of the elevator car; the energy recovery assembly includes a positioning block; the positioning block is fixedly connected to the side wall of the elevator car; a sliding groove is opened at a position corresponding to the positioning block on the side wall of the support side plate; a hand generator is provided inside the positioning block; a driven ratchet is fixedly connected to the end of the rotating shaft of the hand generator; several reverse tooth plates are provided inside the support side plate at positions corresponding to the driven ratchet; a storage battery is fixedly connected to the top of the positioning block; during operation, when the elevator car descends, the traction machine will rotate, making the cable loose, and then the elevator car can descend by gravitational potential energy. During the descent of the elevator car, the descent of the elevator car can be positioned by the restriction of the sliding groove on the support side plate on the positioning block, so that the descent of the elevator car can be more stable. At the same time, when the positioning block slides downward inside the sliding groove, the reverse tooth plate blocks the driven ratchet, enabling the driven ratchet to rotate, driving the rotor inside the hand generator to rotate inside the stator, forming an electric current. Then, after the electric current is processed by a rectifying device, it is stored inside the storage battery. The stored electric energy can provide energy for the ventilation fan and lighting system inside the elevator car, thus saving energy during the operation of the elevator.

[0008] Preferably, the reverse tooth plate is rotatably connected to the inside of the support side plate through a torsion spring; the reverse tooth plate is provided at a position corresponding to the driven ratchet; during operation, when the elevator car ascends, the driven ratchet will push the reverse tooth plate, causing the reverse tooth plate to retract into the inside of the support side plate, thereby avoiding, to a certain extent, the situation where the reverse tooth plate blocks the driven ratchet and the driven ratchet cannot move.

[0009] Preferably, a sliding seat is fixedly connected to the top of the elevator base; a support block is slidably connected inside the sliding seat; a spring is fixedly connected between the bottom of the support block and the top of the elevator base; during operation, when the elevator car falls to the bottommost position, the spring pushes the sliding seat to buffer the elevator car, avoiding, to a certain extent, the situation where the elevator car impacts the top of the elevator base and causes damage to the elevator car. At the same time, the restriction of the elevator car by the sliding seat and the support block can avoid, to a certain extent, the situation where the driven ratchet and the reverse tooth plate get derailed.

[0010] Preferably, a sliding plate is slidably connected inside the support side plate; the sliding plate is arranged at a position corresponding to the reverse tooth plate; a pulling rope is connected between the side wall of the sliding plate close to the reverse tooth plate and the side wall of the reverse tooth plate; the pulling rope passes through the inside of the support side plate in a straight line; a connecting rope is connected between the side wall of the support side plate far from the reverse tooth plate and the bottom of the sliding seat; a damping spring is fixedly connected between the support side plate and the side wall of the sliding plate; a second magnetic block is fixedly connected to the top of the support block; an anti - detachment block is fixedly connected to the side wall of the support block. During operation, when the elevator car falls to the bottom, the adsorption of the second magnetic block on the bottom beam of the elevator car can make the support block contact the bottom of the elevator car more closely, so that the buffering effect of the support block on the elevator car is better. At the same time, during the upward movement of the elevator car, the elevator car will pull the support block. Then, after the support block moves to the limit position, the elevator car and the support block can be separated by the blocking of the sliding seat on the anti - detachment block. During the upward movement of the support block, the support block will pull the sliding plate through the connecting rope, and then the sliding plate can pull the pulling rope, and then the reverse tooth plate can be deflected towards the inside of the support side plate. Under the action of the damping spring, the sliding plate will slowly return to its original position. Then, during the upward movement of the driven ratchet wheel, the reverse tooth plate can cause less blockage to the driven ratchet wheel.

[0011] Preferably, a buffer block is fixedly connected to the bottom of the positioning block. During operation, by setting a buffer block made of a flexible material, such as rubber, at the bottom of the positioning block, when the elevator car approaches the elevator base, it can buffer the elevator car, increase the buffering effect on the elevator car, and to a certain extent, avoid the situation that the positioning block impacts on the support side plate and damages the hand - operated generator inside the positioning block.

[0012] Preferably, a herringbone groove is opened in the middle of the bottom surface of the buffer block; a liquid storage cavity is opened inside the buffer block; a first magnetic block is fixedly connected to the bottom of the buffer block and is respectively arranged at two positions on both sides where the bottom surface of the buffer block is separated; a conduit is connected between the buffer block and the elevator car. During operation, when the elevator car drops, the elevator car descends too fast, and the air resistance will make the buffer block expand to both sides along the middle position of the herringbone groove opened on the bottom surface of the buffer block. Then, the first magnetic block can be adsorbed on the side wall of the support side plate, which can play a certain buffering role for the elevator car. At the same time, the resistance generated by the adsorption can squeeze the buffer block, and then the liquid such as agarwood liquid placed inside the buffer block, which can calm the nerves, can be squeezed into the inside of the elevator car through the conduit. Then, when the elevator car stops unexpectedly, it can play a role in calming the nerves for the people inside the elevator car, effectively reducing the situation that the people inside the elevator car riot, smash the door panel and wall panel of the elevator car, resulting in secondary injuries.

[0013] Preferably, a limiting groove is formed at the top of the supporting block; the limiting groove is arranged corresponding to the cross beam at the bottom of the elevator car; during operation, when the limiting groove buffers the elevator car, the cross beam at the bottom of the elevator car will be embedded into the interior of the limiting groove, and then through the fixation of the bottom of the elevator car by the limiting groove, when the supporting block buffers the elevator car, the situation of sliding dislocation will occur less frequently, making the buffering effect of the supporting block better.

[0014] Preferably, anti-wear balls are snap-connected inside the sliding plate; the side wall of the anti-wear ball contacts the side wall of the supporting side plate; during operation, when the sliding plate slides inside the supporting side plate, the arrangement of the anti-wear balls can change the sliding friction between the sliding plate and the side wall of the supporting side plate into rolling friction, thereby making the friction between the sliding plate and the supporting side plate smaller, and thus reducing the wear between the sliding plate and the supporting side plate.

[0015] An elevator energy recovery method, which is applicable to any one of the above elevator energy recovery devices, and the specific steps of this method are as follows:

[0016] S1: The elevator control component can be used to control the traction machine, so that the traction machine rotates, and then the traction rope is pulled up or relaxed, and then the up and down movement of the elevator car is controlled;

[0017] S2: The elevator control component can be used to control the elevator car to descend. During the descent of the elevator car, the positioning block in the energy recovery component on the side wall of the elevator car slides inside the sliding groove of the supporting side plate. When the driven ratchet is blocked by the reverse tooth plate, it will rotate, and then the rotor inside the hand generator rotates inside the magnetic field, generating electric energy;

[0018] S3: After the electric energy passes through the rectifying device, it enters the interior of the storage battery to store the electric energy, and the electric energy can be supplied to the lighting device and the ventilation device inside the elevator car through the wire for use.

[0019] Preferably, the working steps of the energy recovery component in S2 are as follows:

[0020] S21: By controlling the traction machine through the elevator control component, during the process of controlling the elevator car to descend, the elevator car will drive the positioning block to descend together. Then, when the driven ratchet is blocked by the reverse tooth plate, it will rotate, and then the hand generator can generate electric energy and store it in the interior of the storage battery;

[0021] S22: When the elevator car descends to the position of the elevator base, the limiting groove will contact the bottom surface of the elevator car, and then buffer the descending force of the elevator car through the spring;

[0022] S23: During the upward movement of the elevator car, the second magnetic block adheres to the bottom of the elevator car. During the subsequent upward movement, the sliding plate can be pulled by the connecting rope, causing the sliding plate to pull the reverse tooth plate into the interior of the support side plate through the pull rope. When the elevator car moves to a certain extent, the second magnetic block will separate from the bottom of the elevator car, and then the damping spring will cause the sliding plate to slowly return to its original position, which can, to a certain extent, prevent the reverse tooth plate from blocking the upward movement of the driven ratchet wheel.

[0023] The beneficial effects of the present invention are as follows:

[0024] 1. For the elevator energy recovery device and recovery method described in the present invention, during the downward movement of the elevator car affected by gravitational potential energy, the positioning block can be driven to move downward. Then, through the blocking of the reverse tooth plate, the structure design that drives the driven ratchet wheel to rotate realizes the function of generating electrical energy through the driven ratchet wheel during the operation of the elevator, and then providing energy for the ventilation fan and lighting system inside the elevator car. This effectively solves the problem that traditional elevators do not reasonably utilize gravitational potential energy for energy recovery.

[0025] 2. For the elevator energy recovery device and recovery method described in the present invention, through the structural design of setting a buffer block at the bottom of the positioning block, the function of buffering the elevator car and protecting the equipment inside the positioning block is realized. At the same time, a refreshing drug is set inside the buffer block. When the elevator descends too fast, the air resistance pushes the buffer block against the support side plate, and it is adsorbed on its side wall through the first magnetic block. Then, the drug inside the buffer block can be introduced into the interior of the elevator car through the conduit to refresh the people inside the elevator car, which can, to a certain extent, avoid the situation where the people inside the elevator are easily coma due to lack of oxygen when the elevator suddenly stops. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described below with reference to the accompanying drawings.

[0027] Figure 1 is the perspective view of the present invention;

[0028] Figure 2 is the structural schematic diagram of the elevator car in the present invention;

[0029] Figure 3 is the side sectional view of the support side plate in the present invention;

[0030] Figure 4 is Figure 2 the partial enlarged view of A in

[0031] Figure 5 is Figure 3 the partial enlarged view of B in

[0032] Figure 6 is the front elevation sectional view of the elevator base in the present invention;

[0033] Figure 7 is Figure 6 the partial enlarged view at position C in

[0034] Figure 8 the partial structural schematic diagram of the sliding plate in the second embodiment;

[0035] Figure 9 is the method flow chart of the recovery method in the present invention;

[0036] Figure 10 is the flow chart of the usage steps of the energy recovery component in the present invention.

[0037] In the figure: 1. Elevator base; 2. Support steel column; 3. Support top plate; 4. Traction machine; 5. Elevator car; 6. Support side plate; 7. Positioning block; 8. Driven ratchet; 9. Battery; 10. Reverse tooth plate; 11. Sliding seat; 12. Support block; 13. Sliding plate; 14. Pulling rope; 15. Buffer block; 16. First magnet; 17. Limit groove; 18. Second magnet; 19. Anti-wear ball. Specific embodiments

[0038] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0039] Embodiment 1

[0040] Such as Figures 1 to 5As shown in the figure, an elevator energy recovery device according to an embodiment of the present invention includes an elevator base 1; four support steel columns 2 are fixedly connected to the top of the elevator base 1; the top ends of the support steel columns 2 are fixedly connected to a support top plate 3; a traction machine 4 is installed on the top of the support top plate 3; an elevator car 5 is arranged between the elevator base 1 and the support top plate 3; a traction rope is arranged between the traction machine 4 and a pulley on the top of the elevator car 5; a support side plate 6 is fixedly connected between the elevator base 1 and the support top plate 3; an energy recovery component is arranged on the side wall of the elevator car 5; the energy recovery component includes a positioning block 7; the positioning block 7 is fixedly connected to the side wall of the elevator car 5; a sliding groove is formed in the side wall of the support side plate 6 at a position corresponding to the positioning block 7; a hand generator is arranged inside the positioning block 7; a driven ratchet 8 is fixedly connected to the end of the rotating shaft of the hand generator; a plurality of reverse toothed plates 10 are arranged inside the support side plate 6 at a position corresponding to the driven ratchet 8; a storage battery 9 is fixedly connected to the top of the positioning block 7; during operation, when the elevator car 5 descends, the traction machine 4 rotates, making the cable loose, and then the elevator car 5 can descend by gravitational potential energy. During the descent of the elevator car 5, the descent of the elevator car 5 can be positioned by the restriction of the positioning block 7 by the sliding groove formed in the support side plate 6, so that the descent of the elevator car 5 can be more stable. At the same time, when the positioning block 7 slides downward inside the sliding groove, the reverse toothed plate 10 blocks the driven ratchet 8, enabling the driven ratchet 8 to rotate, driving the rotor inside the hand generator to rotate inside the stator to form an electric current. Then, after the electric current is processed by a rectifying device, it is stored inside the storage battery 9. The stored electric energy can provide energy for the ventilation fan and lighting system inside the elevator car 5, thereby saving the energy consumption during the operation of the elevator.

[0041] As Figure 5 shown, the reverse toothed plate 10 is rotatably connected to the inside of the support side plate 6 through a torsion spring; the reverse toothed plate 10 is arranged at a position corresponding to the driven ratchet 8; during operation, when the elevator car 5 ascends, the driven ratchet 8 pushes the reverse toothed plate 10, causing the reverse toothed plate 10 to retract into the inside of the support side plate 6, thereby avoiding, to a certain extent, the situation where the reverse toothed plate 10 blocks the driven ratchet 8 and the driven ratchet 8 cannot move.

[0042] As Figures 6 to 7As shown in the figure, a sliding seat 11 is fixedly connected to the top of the elevator base 1; a support block 12 is slidably connected inside the sliding seat 11; a spring is fixedly connected between the bottom of the support block 12 and the top of the elevator base 1. During operation, when the elevator car 5 falls to the bottommost position, the sliding seat 11 is pushed by the spring to buffer the elevator car 5, which can, to a certain extent, prevent the elevator car 5 from hitting the top of the elevator base 1 and causing damage to the elevator car 5. At the same time, through the restriction of the elevator car 5 by the sliding seat 11 and the support block 12, the derailment of the driven ratchet 8 and the reverse tooth plate 10 can be avoided to a certain extent.

[0043] As Figure 5 shown, a sliding plate 13 is slidably connected inside the support side plate 6; the sliding plate 13 is arranged at the position corresponding to the reverse tooth plate 10; a pull rope 14 is connected between the side wall of the sliding plate 13 close to the reverse tooth plate 10 and the side wall of the reverse tooth plate 10; the pull rope 14 passes straight through the inside of the support side plate 6; a connecting rope is connected between the side wall of the support side plate 6 far from the reverse tooth plate 10 and the bottom of the sliding seat 11; a damping spring is fixedly connected between the side walls of the support side plate 6 and the sliding plate 13; a second magnetic block 18 is fixedly connected to the top of the support block 12; an anti - detachment block is fixedly connected to the side wall of the support block 12. During operation, when the elevator car 5 falls to the bottom, the adsorption of the second magnetic block 18 on the bottom cross - beam of the elevator car 5 can make the contact between the support block 12 and the bottom of the elevator car 5 closer, so that the buffering effect of the support block 12 on the elevator car 5 is better. At the same time, during the upward movement of the elevator car 5, the elevator car 5 will pull the support block 12. Then, after the support block 12 moves to the limit position, the elevator car 5 can be separated from the support block 12 by the blocking of the anti - detachment block by the sliding seat 11. During the upward movement of the support block 12, the support block 12 will pull the sliding plate 13 through the connecting rope, and then the sliding plate 13 can pull the pull rope 14, and then the reverse tooth plate 10 can be deflected towards the inside of the support side plate 6. Under the action of the damping spring, the sliding plate 13 will slowly return to its original position. Then, during the upward movement of the driven ratchet 8, the reverse tooth plate 10 can cause less blockage to the driven ratchet 8.

[0044] As Figure 4 shown, a buffer block 15 is fixedly connected to the bottom of the positioning block 7. During operation, by setting a buffer block 15 made of a flexible material, such as rubber, at the bottom of the positioning block 7, the elevator car 5 can be buffered when it approaches the elevator base 1. While increasing the buffering effect on the elevator car 5, it can, to a certain extent, prevent the positioning block 7 from hitting the support side plate 6 and causing damage to the hand - operated generator inside the positioning block 7.

[0045] As Figure 4As shown in the figure, a chevron groove is provided in the middle of the bottom surface of the buffer block 15; a liquid storage cavity is provided inside the buffer block 15; a first magnet 16 is fixedly connected to the bottom of the buffer block 15, and is respectively arranged at both sides of the bottom surface of the buffer block 15 that are separated; a conduit is connected between the buffer block 15 and the elevator car 5. During operation, when the elevator car 5 drops, the descending speed of the elevator car 5 is too fast, and the air resistance will act along the middle position of the chevron groove provided on the bottom surface of the buffer block 15, causing the buffer block 15 to expand to both sides. Furthermore, the first magnet 16 can be adsorbed on the side wall of the support side plate 6, which can play a certain buffering role for the elevator car 5. At the same time, the resistance generated by the adsorption can squeeze the buffer block 15, so that the liquid such as agarwood liquid placed inside the buffer block 15 can be squeezed into the interior of the elevator car 5 through the conduit. Furthermore, when the elevator car 5 stops unexpectedly, it can play a certain role in calming the nerves of the people inside the elevator car 5, effectively reducing the occurrence of riots among the people inside the elevator car 5, smashing the door panel and wall panel of the elevator car 5, and causing secondary injuries.

[0046] As Figure 7 As shown in the figure, a limiting groove 17 is provided at the top of the support block 12; the limiting groove 17 is arranged corresponding to the cross beam at the bottom of the elevator car 5. During operation, when the limiting groove 17 buffers the elevator car 5, the cross beam at the bottom of the elevator car 5 will be embedded into the interior of the limiting groove 17. Furthermore, through the fixation of the bottom of the elevator car 5 by the limiting groove 17, when the support block 12 buffers the elevator car 5, the situation of sliding dislocation will occur less frequently, making the buffering effect of the support block 12 better.

[0047] Embodiment 2

[0048] As Figure 8 As shown in the figure, compared with Embodiment 1, another implementation manner of the present invention is: an anti-wear ball 19 is snap-connected inside the sliding plate 13; the side wall of the anti-wear ball 19 is in contact with the side wall of the support side plate 6. During operation, when the sliding plate 13 slides inside the support side plate 6, the anti-wear ball 19 can change the sliding friction between the sliding plate 13 and the side wall of the support side plate 6 into rolling friction, so that the friction between the sliding plate 13 and the support side plate 6 is smaller, and thus the wear between the sliding plate 13 and the support side plate 6 is less.

[0049] As Figure 9 As shown in the figure, an elevator energy recovery method, which is applicable to any one of the above elevator energy recovery devices, and the specific steps of the method are as follows:

[0050] S1: The elevator control component can be used to control the traction machine 4, so that the traction machine 4 rotates, and then the traction rope is pulled or relaxed, and then the up and down movement of the elevator car 5 is controlled;

[0051] S2: The elevator car 5 can be controlled to descend by the elevator control component. During the descent of the elevator car 5, the positioning block 7 in the energy recovery component on the side wall of the elevator car 5 slides inside the sliding groove of the support side plate 6. When the driven ratchet wheel 8 is blocked by the reverse tooth plate 10, it will rotate, and then the rotor inside the hand generator rotates inside the magnetic field, thereby generating electric energy;

[0052] S3: After the electric energy passes through the rectifying device, it enters the inside of the storage battery 9 for storage, and the electric energy can be supplied to the lighting device and the ventilation device inside the elevator car 5 through wires.

[0053] As Figure 10 shown, the working steps of the energy recovery component in S2 are as follows:

[0054] S21: By controlling the traction machine 4 through the elevator control component, during the process of controlling the elevator car 5 to descend, the elevator car 5 will drive the positioning block 7 to descend together. Then, when the driven ratchet wheel 8 is blocked by the reverse tooth plate 10, it will rotate, and then the hand generator can generate electric energy and store it inside the storage battery 9;

[0055] S22: When the elevator car 5 descends to the position of the elevator base 1, the limit groove 17 will contact the bottom surface of the elevator car 5, and then buffer the descending force of the elevator car 5 through the spring;

[0056] S23: During the ascent of the elevator car 5, the second magnet 18 adsorbs on the bottom of the elevator car 5. Then, during the upward movement, the sliding plate 13 can be pulled through the connecting rope, and then the sliding plate 13 pulls the reverse tooth plate 10 to retract into the inside of the support side plate 6 through the pull rope 14. When the elevator car 5 moves to a certain extent, the second magnet 18 will separate from the bottom of the elevator car 5, and then the damping spring will make the sliding plate 13 slowly return to its original position, which can avoid the reverse tooth plate 10 from blocking the upward movement of the driven ratchet wheel 8 to a certain extent.

[0057] When working, during the descent of the elevator car 5, the traction machine 4 rotates, loosening the cable ropes. Then, due to gravitational potential energy, the elevator car 5 descends. During the descent of the elevator car 5, the positioning of the elevator car 5 is achieved by restricting the positioning block 7 through the sliding groove opened on the support side plate 6, making the descent of the elevator car 5 more stable. At the same time, when the positioning block 7 slides downward inside the sliding groove, the reverse tooth plate 10 blocks the driven ratchet 8, causing the driven ratchet 8 to rotate. This can drive the rotor inside the hand-cranked generator to rotate inside the stator, generating an electric current. Then, after the current is processed by the rectifying device, it is stored inside the storage battery 9. The stored electrical energy can provide energy for the ventilation fan and lighting system inside the elevator car 5, thus saving energy during the operation of the elevator. The working principle of the hand-cranked generator is a device that, under the drive of an external force, the coil makes a cutting magnetic induction line movement inside the magnetic field, generating an induced electromotive force and then forming an electric current. And according to different usage scenarios, hand-cranked generators of different models and driven ratchets 8 of different sizes can be selected.

[0058] During the ascent of the elevator car 5, the driven ratchet 8 pushes the reverse tooth plate 10, causing the reverse tooth plate 10 to retract into the support side plate 6, thus avoiding to a certain extent the situation where the reverse tooth plate 10 blocks the driven ratchet 8 and prevents the driven ratchet 8 from moving.

[0059] When the elevator car 5 falls to the bottommost position, the spring pushes the sliding seat 11 to buffer the elevator car 5, avoiding to a certain extent the situation where the elevator car 5 impacts the top of the elevator base 1 and causes damage to the elevator car 5. At the same time, the restriction of the elevator car 5 by the sliding seat 11 and the support block 12 can avoid to a certain extent the situation where the driven ratchet 8 and the reverse tooth plate 10 get derailed.

[0060] After the elevator car 5 falls to the bottom, the adsorption of the second magnetic block 18 on the bottom crossbeam of the elevator car 5 makes the contact between the support block 12 and the bottom of the elevator car 5 closer, thus making the buffering effect of the support block 12 on the elevator car 5 better. At the same time, during the ascent of the elevator car 5, the elevator car 5 pulls the support block 12. Then, after the support block 12 moves to the limit position, the sliding seat 11 blocks the anti-disengagement block, causing the elevator car 5 to disengage from the support block 12. During the upward movement of the support block 12, the support block 12 pulls the sliding plate 13 through the connecting rope, and the sliding plate 13 pulls the pull rope 14, causing the reverse tooth plate 10 to deflect into the support side plate 6. Under the action of the damping spring, the sliding plate 13 slowly returns to its original position. Then, during the ascent of the driven ratchet 8, the reverse tooth plate 10 causes less blockage to the driven ratchet 8.

[0061] By setting a flexible material, such as a rubber buffer block 15, at the bottom of the positioning block 7, when the elevator car 5 approaches the elevator base 1, the elevator car 5 can be buffered, which can increase the buffering effect on the elevator car 5 and, to a certain extent, avoid the positioning block 7 hitting the support side plate 6 and damaging the hand generator inside the positioning block 7.

[0062] When the elevator car 5 drops, the descending speed of the elevator car 5 is too fast, and the air resistance will act on the middle position of the herringbone groove opened on the bottom surface of the buffer block 15, causing the buffer block 15 to expand to both sides. Furthermore, the first magnetic block 16 can be adsorbed on the side wall of the support side plate 6, which can play a certain buffering role for the elevator car 5. At the same time, the resistance generated by the adsorption can squeeze the buffer block 15, so that the liquid such as agarwood liquid placed inside the buffer block 15 can be squeezed into the interior of the elevator car 5 through the conduit. Then, when the elevator car 5 stops unexpectedly, it can play a certain role in calming the nerves of the people inside the elevator car 5, effectively reducing the situation where the people inside the elevator car 5 become riotous and smash the door panel and wall panel of the elevator car 5, resulting in secondary injuries.

[0063] When the limit groove 17 buffers the elevator car 5, the cross beam at the bottom of the elevator car 5 will be embedded inside the limit groove 17. Then, through the fixation of the elevator car 5 by the limit groove 17, when the support block 12 buffers the elevator car 5, the situation of sliding misalignment will occur less frequently, making the buffering effect of the support block 12 better.

[0064] When the sliding plate 13 slides inside the support side plate 6, the setting of the anti-wear ball 19 can change the sliding friction between the sliding plate 13 and the side wall of the support side plate 6 into rolling friction, so that the friction between the sliding plate 13 and the support side plate 6 is smaller, and the wear between the sliding plate 13 and the support side plate 6 is less.

[0065] The above front, back, left, right, up, and down are all based on the Figure 1 in the attached drawings of the specification. Taking the perspective of the observer as the standard, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0066] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the protection scope of the present invention.

[0067] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. An elevator energy recovery device, characterized in that: It includes an elevator base (1); four support steel columns (2) are fixedly connected to the top of the elevator base (1); a support top plate (3) is fixedly connected to the top ends of the support steel columns (2); a traction machine (4) is installed on the top of the support top plate (3); an elevator car (5) is arranged between the elevator base (1) and the support top plate (3); a traction rope is arranged between the traction machine (4) and the pulley on the top of the elevator car (5); a support side plate (6) is fixedly connected between the elevator base (1) and the support top plate (3); an energy recovery component is arranged on the side wall of the elevator car (5); the energy recovery component includes a positioning block (7); the positioning block (7) is fixedly connected to the side wall of the elevator car (5); a sliding groove is formed in the side wall of the support side plate (6) at the position corresponding to the positioning block (7); a hand-cranked generator is arranged inside the positioning block (7); a driven ratchet wheel (8) is fixedly connected to the end of the rotating shaft of the hand-cranked generator; several reverse toothed plates (10) are arranged inside the support side plate (6) at the position corresponding to the driven ratchet wheel (8); a storage battery (9) is fixedly connected to the top of the positioning block (7); The reverse toothed plate (10) is rotatably connected inside the support side plate (6) through a torsion spring; the reverse toothed plate (10) is arranged at the position corresponding to the driven ratchet wheel (8); A sliding seat (11) is fixedly connected to the top of the elevator base (1); a support block (12) is slidably connected inside the sliding seat (11); a spring is fixedly connected between the bottom of the support block (12) and the top of the elevator base (1); A sliding plate (13) is slidably connected inside the support side plate (6); the sliding plate (13) is arranged at the position corresponding to the reverse toothed plate (10); a pull rope (14) is connected between the side wall of the sliding plate (13) close to the reverse toothed plate (10) and the side wall of the reverse toothed plate (10); the pull rope (14) passes through the inside of the support side plate (6) in a straight line; a connecting rope is connected between the side wall of the support side plate (6) far from the reverse toothed plate (10) and the bottom of the sliding seat (11); a damping spring is fixedly connected between the side wall of the support side plate (6) and the side wall of the sliding plate (13); a second magnetic block (18) is fixedly connected to the top of the support block (12); an anti-disengagement block is fixedly connected to the side wall of the support block (12).

2. An elevator energy recovery device according to claim 1, characterized in that: A buffer block (15) is fixedly connected to the bottom of the positioning block (7).

3. The elevator energy recovery device according to claim 2, wherein: A herringbone groove is formed in the middle of the bottom surface of the buffer block (15); a liquid storage cavity is formed inside the buffer block (15); a first magnetic block (16) is fixedly connected to the bottom of the buffer block (15) and is respectively arranged at both sides of the bottom surface of the buffer block (15) separated; a conduit is connected between the buffer block (15) and the elevator car (5).

4. The elevator energy recovery device according to claim 3, characterized in that: A limit groove (17) is formed in the top of the support block (12); the limit groove (17) corresponds to the cross beam at the bottom of the elevator car (5).

5. The elevator energy recovery device according to claim 4, characterized in that: Anti-friction balls (19) are snap-connected inside the sliding plate (13); the side walls of the anti-friction balls (19) are in contact with the side wall of the support side plate (6).

6. An elevator energy recovery method, characterized in that, The energy recovery method adopts an elevator energy recovery device according to any one of claims 1 to 5, and the specific steps of the method are as follows: S1: The traction machine (4) can be controlled by the elevator control component, thereby causing the traction machine (4) to rotate, thereby pulling up or loosening the traction rope, and thereby controlling the up and down movement of the elevator car (5); S2: The elevator car (5) can be controlled to descend by the elevator control component. During the descent of the elevator car (5), the positioning block (7) in the energy recovery component on the side wall of the elevator car (5) slides inside the sliding groove of the supporting side plate (6). When the driven ratchet (8) is blocked by the reverse tooth plate (10), it rotates, thereby causing the rotor inside the hand-cranked generator to rotate inside the magnetic field, thereby generating electrical energy. S3: After passing through the rectifier, the electric energy enters the battery (9) to store the electric energy, and can be supplied to the lighting device and ventilation device inside the elevator car (5) through the wire.

7. A method for elevator energy recovery according to claim 6, characterized in that, The energy recovery component in S2 works as follows: S21: The traction machine (4) is controlled by the elevator control component, and in the process of controlling the elevator car (5) to descend, the elevator car (5) drives the positioning block (7) to descend together, and then the driven ratchet (8) is blocked by the reverse tooth plate (10) and rotates, thereby enabling the hand-cranked generator to generate electrical energy and store it in the battery (9); S22: When the elevator car (5) descends to the position of the elevator base (1), the limiting groove (17) contacts the bottom surface of the elevator car (5), and the descending force of the elevator car (5) is buffered by the spring; S23: During the process of the elevator car (5) rising, the second magnetic block (18) is adsorbed on the bottom of the elevator car (5), and in the process of moving upward, the sliding plate (13) can be pulled by the connecting rope, so that the sliding plate (13) pulls the reverse tooth plate (10) through the pull rope (14) to retract into the interior of the supporting side plate (6). When the elevator car (5) moves to a certain extent, the second magnetic block (18) will be separated from the bottom of the elevator car (5), and the damping spring will slowly return the sliding plate (13) to its original position, which can avoid the reverse tooth plate (10) from blocking the upward movement of the driven ratchet (8) to a certain extent.

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