CN220664581U

CN220664581U - Elevator buffer device

Info

Publication number: CN220664581U
Application number: CN202321166896.1U
Authority: CN
Inventors: 翁贤贤; 吕少炯; 陈斌; 章明辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-05-16
Filing date: 2023-05-16
Publication date: 2024-03-26
Anticipated expiration: 2033-05-16

Abstract

The utility model discloses an elevator buffer device, which comprises a car arranged in an elevator shaft, wherein a buffer unit is arranged on the bottom surface of the car, the buffer unit comprises a base plate, a piston rod is fixedly connected to the bottom surface of the base plate, a sliding plate is fixedly connected to the bottom end of the piston rod, a piston cylinder is slidingly connected to the side surface of the sliding plate, and the bottom surface of the piston cylinder is fixedly arranged on the bottom surface of an inner cavity of the elevator shaft; the opposite side walls of the elevator shaft are respectively provided with a plurality of sliding grooves, a sliding block is connected in the sliding grooves in a sliding way, a traction component is fixedly connected to one side face of the sliding block, a buffer component is hinged to the other side face of the sliding block, and the buffer component is fixedly arranged on the side wall of the elevator shaft; the traction component is fixedly connected with the outer side wall of the car. The utility model can realize the absorption of the buffer force of the car by a buffer mode of the connection and transition of two sections.

Description

Elevator buffer device

Technical Field

The utility model relates to the technical field of transmission machinery, in particular to an elevator buffer device.

Background

An elevator refers to a permanent transport device serving a number of specific floors within a building with its car running in at least two columns of rigid rails running perpendicular to the horizontal or inclined at an angle of less than 15 ° to the plumb line. Typically elevators include a machine room section, a hoistway section, a car section, and a landing section. When the car slides down to the lowest end of the elevator shaft, the car needs to be decelerated to finish the transportation of personnel or goods in the car. And the adjustment of the running speed of the car is directly related to the comfort and safety of the riding of the person.

The prior art discloses an elevator buffering protector (Chinese patent number: CN 208071053U), can cushion the elevator through buffer spring, buffer cylinder and electromagnetic buffer, and its buffering effect is very obvious, but buffer rate is too violent, can very influence the comfort level of taking.

Disclosure of Invention

In order to solve the technical problems, the utility model provides an elevator buffer device which can absorb the buffer force of a car in a buffer mode of two-section connection transition.

In order to achieve the above object, the present utility model provides the following solutions:

the elevator buffer device comprises a car arranged in an elevator shaft, wherein a buffer unit is arranged on the bottom surface of the car, the buffer unit comprises a base plate, a piston rod is fixedly connected to the bottom surface of the base plate, a sliding plate is fixedly connected to the bottom end of the piston rod, a piston cylinder is slidingly connected to the side surface of the sliding plate, and the bottom surface of the piston cylinder is fixedly arranged on the bottom surface of an inner cavity of the elevator shaft; the elevator comprises an elevator shaft, a plurality of sliding grooves are formed in the opposite side walls of the elevator shaft respectively, a sliding block is connected in the sliding grooves in a sliding mode, a traction assembly is fixedly connected to one side face of the sliding block, a buffer assembly is hinged to the other side face of the sliding block, and the buffer assembly is fixedly installed on the side wall of the elevator shaft; the traction component is fixedly connected with the outer side wall of the car.

Preferably, a spring is fixedly connected to the bottom surface of the inner cavity of the piston cylinder, a limiting rod is arranged in the inner cavity of the spring, and the bottom surface of the limiting rod is fixedly connected with the bottom surface of the inner cavity of the piston cylinder; the top surface of the spring is fixedly connected with the bottom surface of the sliding plate.

Preferably, the top surface of the sliding plate is fixedly connected and communicated with a communicating pipe and a safety tube respectively, an electromagnetic valve is connected in series on the communicating pipe, and the electromagnetic valve is electrically connected with the controller; the safety tube is connected with a safety valve in series.

Preferably, the traction assembly comprises a connecting block, one side surface of the connecting block is fixedly connected with the outer side surface of the car, a pickpocket is fixedly connected with one side surface of the connecting block, which is far away from the car, a pickpocket is detachably connected with a pickpocket, one side surface of the pickpocket is fixedly connected with the sliding block, and the pickpocket is matched with the pickpocket and detachably connected with the same.

Preferably, the buffer assembly comprises a generator, one end of an input shaft of the generator is in transmission connection with a winding wheel, the other end of the input shaft of the generator is in transmission connection with a coil spring, and one end of the coil spring is fixedly connected with the generator shell; the generator is fixedly connected with the side wall of the elevator shaft; the winding wheel is sleeved with a cable, and one end of the cable is hinged with the sliding block.

Preferably, the top surface of the base plate is fixedly connected with a silica gel pad for buffering downward impact force of the lift car.

Compared with the prior art, the utility model has the following advantages and technical effects:

according to the utility model, the absorption and conversion of the downward kinetic energy of the car are realized by utilizing the traction component fixedly connected with the top end of the outer side surface of the car to traction the buffer component, so that the energy consumption is reduced.

According to the utility model, the buffer unit is arranged on the bottom surface of the car, and the buffer of the impact force of the car is completed by utilizing the air in the compressed piston cylinder, so that the buffer deceleration of the car is prevented from being too large, and the comfort level of the car is improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. In the drawings:

FIG. 1 is a schematic side view of a cushioning device;

FIG. 2 is a schematic side view of a piston cylinder, spring and stop lever;

fig. 3 is a schematic side view of an elevator hoistway;

fig. 4 is a schematic side view of a pulling assembly;

1, an elevator shaft; 2. a car; 3. a backing plate; 4. a silica gel pad; 5. a piston rod; 6. a slide plate; 7. a piston cylinder; 8. a chute; 9. a slide block; 10. a spring; 11. a limit rod; 12. a communicating pipe; 13. a protective tube; 14. an electromagnetic valve; 15. a safety valve; 16. a clasp; 17. digging blocks; 18. a connecting block; 19. a generator; 20. a winding wheel; 21. a coil spring; 22. a cable.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

The present utility model will be described in further detail with reference to the drawings and the detailed description below, in order to make the above objects, features and advantages of the present utility model more comprehensible.

The elevator buffer device shown in fig. 1-3 comprises a car 2 arranged in an elevator shaft 1, wherein a buffer unit is arranged on the bottom surface of the car 2 and comprises a base plate 3, a piston rod 5 is fixedly connected to the bottom surface of the base plate 3, a sliding plate 6 is fixedly connected to the bottom end of the piston rod 5, a piston cylinder 7 is slidingly connected to the side surface of the sliding plate 6, and the bottom surface of the piston cylinder 7 is fixedly arranged on the bottom surface of an inner cavity of the elevator shaft 1; the opposite side walls of the elevator shaft 1 are respectively provided with a plurality of sliding grooves 8, a sliding block 9 is connected in a sliding manner in the sliding grooves 8, a traction component is fixedly connected to one side surface of the sliding block 9, a buffer component is hinged to the other side surface of the sliding block 9, and the buffer component is fixedly arranged on the side wall of the elevator shaft 1; the traction component is fixedly connected with the outer side wall of the car 2. The top surface of the backing plate 3 is fixedly connected with a silica gel pad 4 for buffering downward impact force of the lift car 2.

Further, through grooves are formed in opposite side surfaces of the sliding groove 8, the through grooves are arranged in parallel with the sliding groove 8, and the sliding blocks 9 are respectively matched with the sliding groove 8 and the through grooves and are in sliding connection, so that the sliding blocks 9 are prevented from sliding out of the sliding groove 8.

Furthermore, the utility model realizes the absorption and conversion of the downward kinetic energy of the car 2 by utilizing the traction component fixedly connected with the top end of the outer side surface of the car 2 to traction the buffer component, and in order to avoid overlarge buffer deceleration of the car 2, a buffer unit is arranged on the bottom surface of the car 2, and the buffer of the impact force of the car 2 is completed by utilizing the air in the compression piston cylinder 7.

According to a further optimization scheme, a spring 10 is fixedly connected to the bottom surface of the inner cavity of the piston cylinder 7, a limiting rod 11 is arranged in the inner cavity of the spring 10, and the bottom surface of the limiting rod 11 is fixedly connected with the bottom surface of the inner cavity of the piston cylinder 7; the top surface of the spring 10 is fixedly connected with the bottom surface of the sliding plate 6.

Further optimizing scheme, slide 6 top surface rigid coupling respectively has communicating pipe 12, insurance pipe 13, communicating pipe 12 and insurance pipe 13's one end communicates with outside atmosphere respectively, be convenient for adjust the atmospheric pressure in the piston cylinder 7, be connected in series on the communicating pipe 12 has solenoid valve 14, solenoid valve 14 and controller electric connection, controller fixed mounting is in elevator shaft 1 inner wall, and the controller can be after backing plate 3 descends to the bottom, when slide 6 and gag lever post 11 top surface looks butt, control solenoid valve 14 opens piston cylinder 7 and communicates with outside atmosphere through communicating pipe 12, be convenient for slide 6 goes up time piston cylinder 7 can be full of the air, in order to be convenient for the switching opportunity of controller control solenoid valve 14, inlay at gag lever post 11's top surface and be equipped with distance sensor or pressure sensor and controller electric connection, it is prior art for the controller signal of telecommunication, it is not repeated here. The safety tube 13 is connected in series with a safety valve 15, and the air pressure in the piston cylinder 7 is regulated by the safety valve 15 in order to avoid a rigid shock generated when the compressed air reaches a limit.

Further, the relief valve 15 is a pressure valve, and can communicate with external air to release pressure when the pressure reaches a preset value, which is the prior art and will not be described herein.

Further, the controller is a PLC controller, which is a prior art and will not be described herein.

As shown in fig. 4, the traction assembly includes a connection block 18, one side of the connection block 18 is fixedly connected with the outer side of the car 2, a clasp 16 is fixedly connected with one side of the connection block 18 far away from the car 2, the clasp 16 is detachably connected with a clasp block 17, one side of the clasp block 17 is fixedly connected with the sliding block 9, and the clasp block 17 is adapted to and detachably connected with the clasp 16. The buffer component comprises a generator 19, one end of an input shaft of the generator 19 is in transmission connection with a winding wheel 20, the other end of the input shaft is in transmission connection with one end of a coil spring 21, the other end of the coil spring 21 is fixedly connected with a shell of the generator 19, and the coil spring 21 can absorb the traction force of a cable 22 and provide restoring force of the winding wheel 20; the generator 19 is fixedly connected with the side wall of the elevator shaft 1; the winding wheel 20 is sleeved with a cable 22, and one end of the cable 22 is hinged with the sliding block 9.

The working procedure of this embodiment is as follows:

when the lift car 2 descends to the bottom end in the lift shaft 1, firstly, the clasp 16 fixedly connected with the outer side surface of the lift car 2 is in clamping fit with the clasp block 17, at the moment, the lift car 2 descends again to drive the clasp block 17 to descend, then the sliding block 9 pulls the cable 22 to descend along the sliding groove 8, the cable 22 pulls the generator 19 and the coil spring 21, and impact force and kinetic energy of the lift car 2 are fully absorbed in the descending process of the lift car 2. Wherein the electric energy generated by the generator 19 is stored in connection with an external energy storage device. Meanwhile, in the continuous descending process of the car 2, the bottom surface of the car 2 is in contact with the silica gel pad 4, the silica gel pad 4 respectively extrudes the base plate 3, the piston rod 5 and the sliding plate 6, the piston cylinder 7 can move downwards, at the moment, the controller controls the electromagnetic valve 14 to be closed, the base plate 3 can extrude air in the piston cylinder 7 downwards, further impact force of the car 2 is buffered, rigid impact generated when the compressed air reaches a limit is avoided, the safety valve 15 is utilized to jack up the safety valve 15 to carry out deflation and decompression when the sliding plate 6 descends to compress the air to a certain pressure, and air pressure in the piston cylinder 7 is adjusted.

The foregoing is merely a preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions easily conceivable by those skilled in the art within the technical scope of the present application should be covered in the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. The elevator buffer device is characterized by comprising a car (2) arranged in an elevator shaft (1), wherein a buffer unit is arranged on the bottom surface of the car (2), the buffer unit comprises a base plate (3), a piston rod (5) is fixedly connected to the bottom surface of the base plate (3), a sliding plate (6) is fixedly connected to the bottom end of the piston rod (5), a piston cylinder (7) is slidably connected to the side surface of the sliding plate (6), and the bottom surface of the piston cylinder (7) is fixedly arranged on the bottom surface of an inner cavity of the elevator shaft (1); a plurality of sliding grooves (8) are respectively formed in the opposite side walls of the elevator shaft (1), a sliding block (9) is connected in the sliding grooves (8) in a sliding mode, a traction assembly is fixedly connected to one side face of the sliding block (9), a buffer assembly is hinged to the other side face of the sliding block (9), and the buffer assembly is fixedly arranged on the side wall of the elevator shaft (1); the traction component is fixedly connected with the outer side wall of the car (2).

2. An elevator buffer device according to claim 1, characterized in that: a spring (10) is fixedly connected to the bottom surface of the inner cavity of the piston cylinder (7), a limiting rod (11) is arranged in the inner cavity of the spring (10), and the bottom surface of the limiting rod (11) is fixedly connected with the bottom surface of the inner cavity of the piston cylinder (7); the top surface of the spring (10) is fixedly connected with the bottom surface of the sliding plate (6).

3. An elevator buffer device according to claim 1, characterized in that: the top surface of the sliding plate (6) is fixedly connected and communicated with a communicating pipe (12) and a safety tube (13) respectively, an electromagnetic valve (14) is connected in series on the communicating pipe (12), and the electromagnetic valve (14) is electrically connected with a controller; the safety tube (13) is connected with a safety valve (15) in series.

4. An elevator buffer device according to claim 1, characterized in that: the traction assembly comprises a connecting block (18), one side surface of the connecting block (18) is fixedly connected with the outer side surface of the car (2), the connecting block (18) is far away from a side surface of the car (2) and fixedly connected with a pickpocket (16), the pickpocket (16) is detachably connected with a scraping block (17), one side surface of the scraping block (17) is fixedly connected with the sliding block (9), and the scraping block (17) is matched with the pickpocket (16) and detachably connected with the same.

5. An elevator buffer device according to claim 1, characterized in that: the buffer assembly comprises a generator (19), one end of an input shaft of the generator (19) is in transmission connection with a winding wheel (20), the other end of the input shaft is in transmission connection with a coil spring (21), and one end of the coil spring (21) is fixedly connected with a shell of the generator (19); the generator (19) is fixedly connected with the side wall of the elevator shaft (1); the winding wheel (20) is sleeved with a cable (22), and one end of the cable (22) is hinged with the sliding block (9).

6. An elevator buffer device according to claim 1, characterized in that: the top surface of the backing plate (3) is fixedly connected with a silica gel pad (4) for buffering downward impact force of the lift car (2).