CN210214461U

CN210214461U - Elevator buffer device

Info

Publication number: CN210214461U
Application number: CN201920924818.0U
Authority: CN
Inventors: Xiaowei Jin; 金晓伟; Shaogao Gu; 顾绍高
Original assignee: Suzhou Zhong Ling Elevator Co Ltd
Current assignee: Suzhou Zhong Ling Elevator Co Ltd
Priority date: 2019-06-19
Filing date: 2019-06-19
Publication date: 2020-03-31
Anticipated expiration: 2029-06-19

Abstract

The utility model provides an elevator buffer, relate to elevator safety equipment technical field, elevator shaft bottom base under elevator car body and the elevator car body that is located elevator shaft bottom, the top surface of elevator shaft bottom base is the opening form, the position of elevator car body and elevator shaft bottom base top surface open position are corresponding from top to bottom, the fixed hemispherical blotter that is provided with on the intraoral bottom surface of elevator shaft bottom base opening, the still symmetry in the intraoral bottom surface both ends of elevator shaft bottom base opening is provided with the fan-shaped buffering angle of cavity form and fills up, the fan-shaped buffering angle of cavity form fills up one end and all sets up on the lateral wall of elevator shaft bottom base through the cylinder pipe is fixed, the fan-shaped buffering angle of cavity form fills up the other end and fixes the setting on the. The utility model has the advantages of reduced the height of elevartor shaft, and reduced the striking of elevator car body lateral wall when falling, be favorable to improving buffering effect.

Description

Elevator buffer device

Technical Field

The utility model relates to an elevator safety equipment technical field, concretely relates to elevator buffer.

Background

The traditional elevator buffer device structurally comprises buffer columns fixed on a floor foundation, wherein buffer cushions are arranged on the buffer columns, in order to ensure the safety of a car, the buffer device needs to bear huge impact on the car caused by abnormal falling of the car, the buffer cushions are inevitably thick, and the elasticity of the buffer cushions needs to be controlled to be moderate and cannot be controlled when the buffer cushions are too soft and too hard, so that the height of the buffer columns in the traditional elevator buffer device is too high after the buffer cushions in the traditional elevator buffer device are too late, the well to be dug is deeper, the construction cost is increased, the elasticity of the buffer cushions is not easy to control, and the buffer effect is poor; and the car also bumps easily at the in-process lateral wall that falls, is unfavorable for the buffering.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide an elevator buffer with height that has reduced the elevartor shaft, and reduced the striking of elevator car body lateral wall when falling, be favorable to improving buffering effect.

In order to solve the technical problem, the utility model provides an elevator buffer device, which comprises an elevator car body and an elevator shaft bottom base which is positioned right below the elevator car body in the bottom part of the elevator shaft, wherein the top surface of the elevator shaft bottom base is in an opening shape, the position of the elevator car body corresponds to the opening position of the top surface of the elevator shaft bottom base up and down, a hemispherical buffer cushion is fixedly arranged on the bottom surface in the opening of the elevator shaft bottom base, hollow fan-shaped buffer corner pads are symmetrically arranged at two ends of the bottom surface in the opening of the elevator shaft bottom base, one end of each hollow fan-shaped buffer corner pad is fixedly arranged on the side wall of the elevator shaft bottom base through a cylindrical pipe, the other end of each hollow fan-shaped buffer corner pad is fixedly arranged on the bottom surface of the elevator shaft bottom base, buffer nets are horizontally arranged between the cylindrical pipes, two side walls in the opening of, still be provided with a plurality of buffers on the intraoral bottom surface of elevartor shaft bottom base opening, be provided with round platform form buffering hole on the bottom surface of elevator car body, and the position of round platform form buffering hole is corresponding from top to bottom with the position of hemispherical blotter, the bottom surface both ends of elevator car body are arc column structure, top-down has still all set gradually a plurality of buffering posts and buffer roller device on the opposition lateral wall of elevator car body, buffering post top-down parallel arrangement in proper order, and the buffering post is cavity form half cylinder column structure, contact between the lateral wall of buffer roller device and elevartor shaft bottom base.

Preferably, the buffer distributes along hemispherical blotter's excircle circumferencial direction equidistance, and the buffer is provided with four at least, the buffer includes the bellows cylinder, the one end of bellows cylinder sets up perpendicularly on the intraoral bottom surface of elevartor shaft bottom base, the level is provided with the buffer disc on the other end of bellows cylinder, the outside of bellows cylinder is still overlapped and is equipped with damping spring, when the elevator car body takes place to fall unusually, the buffer disc is contacted to the bottom of elevator car body, the elevator car body produces the deformation at the in-process bellows cylinder that pushes down, can cushion the power that produces when the elevator car body falls, compression damping spring can play the cushioning effect to the elevator car body simultaneously.

Preferably, the buffer roller device comprises a rotating shaft fixing seat, the rotating shaft fixing seat is fixedly arranged on the side wall of the elevator car body, a rotating shaft is arranged in the rotating shaft fixing seat in an internal activity mode, the two ends of the rotating shaft penetrate through the rotating shaft fixing seat, eccentric discs are further arranged at the two ends of the rotating shaft, the outer circular wall of each eccentric disc is in contact with the side wall of the elevator shaft bottom base, the rotating shaft and the rotating shaft fixing seat are in interference fit, when the elevator car body falls abnormally, friction force is generated due to contact between the eccentric discs and the side wall of the elevator shaft bottom base, therefore, the buffer effect on the elevator car body can be achieved, a rotating shaft is arranged in the rotating shaft fixing seat in an internal activity mode, the elevator car body can be prevented from falling, and the eccentric discs on.

Preferably, be provided with the buffer hole on the buffering net, the shape of buffer hole is the same with the bottom surface shape of elevator car body, and round platform form buffer hole, buffer hole and hemispherical blotter's position are corresponding, and the buffering net can take place to play the cushioning effect when the elevator car body falls unusually.

Preferably, the big diameter end of round platform form cushion hole flushes with the bottom surface of elevator car body, the minor diameter end of round platform form cushion hole is less than hemispherical blotter's diameter, the major diameter end of round platform form cushion hole is greater than hemispherical blotter's diameter, and the highly diameter that is greater than hemispherical blotter of round platform form cushion hole, after elevator car body falls to elevator shaft bottom base, hemispherical blotter enters into the big diameter end of round platform form cushion hole earlier, again gradually to the minor diameter end transition of round platform form cushion hole, make the extrusion frictional force that round platform form cushion hole produced to hemispherical blotter increase gradually, thereby can play the cushioning effect when falling elevator car body.

Preferably, hemispherical blotter, buffer disc, buffering post and eccentric disc are rubber materials and make, can play better bounce-back effect to the in-process that the elevator car body is falling, are favorable to improving the buffering effect to the elevator car body.

The utility model has the advantages that:

(1) the bottom surface of the elevator shaft bottom base is provided with the hemispherical cushion pad and the buffer, when the elevator car body falls into the elevator shaft bottom base, the hemispherical cushion pad firstly enters the large-diameter end of the round platform-shaped cushion hole and then gradually transits to the small-diameter end of the round platform-shaped cushion hole, so that the extrusion friction force generated by the round platform-shaped cushion hole on the hemispherical cushion pad is gradually increased, the elevator car body can be buffered when falling, the bottom of the elevator car body is contacted with the cushion disc, the corrugated pipe cylinder body deforms in the pressing process of the elevator car body, the force generated when the elevator car body falls can be buffered, and meanwhile, the compression damping spring can play a role in buffering the elevator car body;

(2) all be provided with a plurality of buffering posts and buffer roller device on the opposition lateral wall of elevator car body for the elevator car body reduces the striking to elevator car body lateral wall when falling, thereby be favorable to improving the security, the contact produces frictional force between the lateral wall of eccentric disc and elevartor shaft bottom base, thereby can play the cushioning effect to the elevator car body, pivot fixing base internalization is provided with the pivot, can prevent that the elevator car body is when falling, the eccentric disc card of elevator car body one side is on the lateral wall of elevartor shaft bottom base.

Drawings

The accompanying drawings are included to provide a preferred understanding of the present invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of an elevator buffer device of the present invention;

fig. 2 is a schematic diagram of a buffer position of an elevator buffer device according to the present invention;

fig. 3 is a schematic view of the position of a truncated cone-shaped buffer hole of the elevator buffer device of the present invention;

the reference signs are: 1. an elevator car body; 11. a circular truncated cone-shaped buffer hole; 2. an elevator shaft bottom base; 21. a hemispherical cushion; 3. a hollow fan-shaped buffer corner pad; 31. a cylindrical tube; 4. a buffer net; 41. a buffer hole; 5. a buffer; 51. a bellows cylinder; 52. a buffer tray; 53. a damping spring; 6. a buffer column; 7. a buffer roller device; 71. a rotating shaft fixing seat; 72. a rotating shaft; 73. an eccentric disc.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

As shown in fig. 1-3, for an elevator buffer of this embodiment, including elevator car body 1 and the elevartor shaft bottom base 2 that is located under elevator car body 1 in the elevartor shaft bottom, the top surface of elevartor shaft bottom base 2 is the opening form, elevator car body 1's position and elevartor shaft bottom base 2 top surface open position are corresponding from top to bottom, fixedly on the intraoral bottom surface of elevartor shaft bottom base 2 opening be provided with hemispherical blotter 21, the intraoral bottom surface both ends of elevartor shaft bottom base 2 opening still symmetry are provided with the fan-shaped buffering horn pad of cavity 3, the fan-shaped buffering horn pad of cavity 3 one end all sets up on the lateral wall of elevartor shaft bottom base 2 through cylinder pipe 31 is fixed, the fan-shaped buffering horn pad of cavity 3 other end sets up on the bottom surface of elevartor shaft bottom base 2, still the level is provided with buffering net 4 between the cylinder pipe 31, the top of eleva The wall is arc column structure, still be provided with a plurality of buffers 5 on the intraoral bottom surface of 2 openings in elevartor shaft bottom base, be provided with round platform form buffer hole 11 on elevator car body 1's the bottom surface, and round platform form buffer hole 11's position and hemispherical blotter 21's position are corresponding from top to bottom, elevator car body 1's bottom surface both ends are arc column structure, top-down has still all set gradually a plurality of cushion posts 6 and buffer roller device 7 on elevator car body 1's the opposition lateral wall, 6 top-down parallel arrangement in proper order of cushion post, and cushion post 6 is cavity form half cylinder column structure, contact between the lateral wall of buffer roller device 7 and elevartor shaft bottom base 2.

The buffers 5 are equidistantly distributed along the outer circle circumferential direction of the hemispherical buffer 21, at least four buffers 5 are arranged, each buffer 5 comprises a corrugated pipe cylinder 51, one end of each corrugated pipe cylinder 51 is vertically arranged on the bottom surface in the opening of the base 2 at the bottom of the elevator shaft, a buffer disc 52 is horizontally arranged at the other end of each corrugated pipe cylinder 51, a damping spring 53 is further sleeved outside each corrugated pipe cylinder 51, when the elevator car body 1 falls abnormally, the bottom of the elevator car body 1 contacts with the buffer disc 52, the corrugated pipe cylinders 51 deform in the downward pressing process of the elevator car body 1 and can buffer the force generated when the elevator car body 1 falls, meanwhile, the damping spring 53 is compressed to play a buffering role on the elevator car body 1, each buffer roller device 7 comprises a rotating shaft fixing seat 71, and the rotating shaft fixing seats 71 are fixedly arranged on the side walls of the elevator car body 1, the rotating shaft 72 is movably arranged in the rotating shaft fixing seat 71, two ends of the rotating shaft 72 penetrate through the rotating shaft fixing seat 71, the two ends of the rotating shaft 72 are respectively provided with an eccentric disc 73, the outer circular wall of each eccentric disc 73 is in contact with the side wall of the elevator shaft bottom base 2, the rotating shaft 72 is in interference fit with the rotating shaft fixing seat 71, when the elevator car body 1 falls abnormally, friction force is generated by contact between each eccentric disc 73 and the side wall of the elevator shaft bottom base 2, the elevator car body 1 can be buffered, the rotating shaft 72 is movably arranged in the rotating shaft fixing seat 71, the elevator car body 1 can be prevented from falling, the eccentric discs 73 on one side of the elevator car body 1 are clamped on the side wall of the elevator shaft bottom base 2, the buffering net 4 is provided with buffering holes 41, the buffering holes 41 are the same as the bottom surface of the elevator car body 1 in shape, and the truncated cone, The positions of the buffer holes 41 correspond to those of the hemispherical cushions 21, the buffer net 4 can play a role of buffering when the elevator car body 1 falls abnormally, the large diameter end of the round platform-shaped buffer hole 11 is flush with the bottom surface of the elevator car body 1, the small diameter end of the round platform-shaped buffer hole 11 is smaller than the diameter of the hemispherical cushion 21, the large diameter end of the round platform-shaped buffer hole 11 is larger than the diameter of the hemispherical cushion 21, and the height of the round platform-shaped buffer hole 11 is larger than the diameter of the hemispherical cushion 21, after the elevator car body 1 falls into the base 2 at the bottom of the elevator shaft, the hemispherical cushion 21 enters the large diameter end of the round platform-shaped buffer hole 11 first and then gradually transits to the small diameter end of the round platform-shaped buffer hole 11, so that the extrusion friction force generated by the round platform-shaped buffer hole 11 on the hemispherical cushion 21 is gradually increased, and the elevator car body, hemispherical buffer pad 21, buffer disc 52, buffering post 6 and eccentric disc 73 are rubber materials and make, can play better bounce-back effect to elevator car body 1 at the in-process that falls, are favorable to improving the buffering effect to elevator car body 1.

The utility model discloses a theory of operation is: when the elevator car body 1 falls abnormally, the buffer column 6 and the buffer roller device 7 on the opposite side wall of the elevator car body 1 are in contact with the inner wall of the elevator shaft bottom base 2, and the buffer column 6 is of a hollow semi-cylindrical structure, so when the elevator car body 1 falls, when the buffer column 6 is in contact with the inner wall of the elevator shaft bottom base 2, the buffer column 6 is extruded and deformed, impact force generated when the elevator car body 1 falls can be buffered, and the eccentric disc 73 is in contact with the side wall of the elevator shaft bottom base 2 to generate friction force, so that the elevator car body 1 can be buffered, the rotating shaft 72 is movably arranged in the rotating shaft fixing seat 71, and the eccentric disc 73 on one side of the elevator car body 1 can be prevented from being clamped on the side wall of the elevator shaft bottom base 2 when the elevator car body 1 falls; two side walls in the opening of the elevator shaft bottom base 2 between the top of the elevator shaft bottom base 2 and the buffer net 4 are arc-shaped structures, so that the buffer column 6 and the eccentric disc 73 can better generate larger friction force with the two side walls in the opening of the elevator shaft bottom base 2, the speed of the elevator car body 1 when falling can be reduced, and a buffer effect is achieved; when the elevator car body 1 continuously falls, the bottom of the elevator car body 1 falls onto the buffer net 4, after being buffered by the buffer net 4, the bottom of the elevator car body 1 contacts the buffer disc 52, the corrugated pipe column 51 deforms in the downward pressing process of the elevator car body 1, the force generated when the elevator car body 1 falls can be buffered, and meanwhile, the compression damping spring 53 can play a role in buffering the elevator car body 1; after the elevator car body 1 falls into the base 2 at the bottom of the elevator shaft, the hemispherical cushion pad 21 firstly enters the large-diameter end of the circular truncated cone-shaped cushion hole 11 and then gradually transits to the small-diameter end of the circular truncated cone-shaped cushion hole 11, so that the extrusion friction force generated by the circular truncated cone-shaped cushion hole 11 on the hemispherical cushion pad 21 is gradually increased, and the elevator car body 1 can be buffered when falling; all be provided with a plurality of cushion posts 6 and buffer roller device 7 on the opposition lateral wall of elevator car body 1 for elevator car body 1 reduces the striking to elevator car body 1 lateral wall when falling, thereby is favorable to improving the security.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An elevator buffer, characterized in that: comprises an elevator car body (1) and an elevator shaft bottom base (2) positioned right below the elevator car body (1) in the bottom of the elevator shaft, the top surface of the elevator shaft bottom base (2) is in an open shape, the position of the elevator car body (1) corresponds to the top surface open position of the elevator shaft bottom base (2) up and down, a hemispherical buffer cushion (21) is fixedly arranged on the bottom surface in the opening of the elevator shaft bottom base (2), hollow fan-shaped buffer corner pads (3) are symmetrically arranged at two ends of the bottom surface in the opening of the elevator shaft bottom base (2), one ends of the hollow fan-shaped buffer corner pads (3) are fixedly arranged on the side wall of the elevator shaft bottom base (2) through cylindrical pipes (31), the other ends of the hollow fan-shaped buffer corner pads (3) are fixedly arranged on the bottom surface of the elevator shaft bottom base (2), and buffer nets (4) are horizontally arranged between, the two side walls in the opening of the elevator shaft bottom base (2) between the top of the elevator shaft bottom base (2) and the buffer net (4) are both arc-shaped structures, a plurality of buffers (5) are also arranged on the bottom surface in the opening of the elevator shaft bottom base (2), a round platform-shaped buffer hole (11) is arranged on the bottom surface of the elevator car body (1), the positions of the round platform-shaped buffer holes (11) are vertically corresponding to the positions of the hemispherical buffer pads (21), both ends of the bottom surface of the elevator car body (1) are arc-shaped structures, a plurality of buffer columns (6) and buffer roller devices (7) are sequentially arranged on opposite side walls of the elevator car body (1) from top to bottom, the buffer columns (6) are sequentially arranged in parallel from top to bottom, and the buffer column (6) is a hollow semi-cylinder structure, and the buffer roller device (7) is contacted with the side wall of the base (2) at the bottom of the elevator shaft.

2. An elevator buffer as defined in claim 1, wherein: buffer (5) distribute along the excircle circumferencial direction equidistance of hemispherical blotter (21), and buffer (5) are provided with four at least, and buffer (5) are including bellows cylinder (51), and the one end of bellows cylinder (51) sets up perpendicularly on the intraoral bottom surface of elevartor shaft bottom base (2), and the level is provided with buffer disc (52) on the other end of bellows cylinder (51), and the outside of bellows cylinder (51) still overlaps and is equipped with damping spring (53).

3. An elevator buffer as defined in claim 1, wherein: buffer roller device (7) are including pivot fixing base (71), pivot fixing base (71) are fixed to be set up on the lateral wall of elevator car body (1), pivot fixing base (71) internalization is provided with pivot (72), and pivot fixing base (71) are all passed at the both ends of pivot (72), still all be provided with eccentric disc (73) on the both ends of pivot (72), contact between the outer disc wall of eccentric disc (73) and the lateral wall of elevartor shaft bottom base (2), and be interference fit between pivot (72) and pivot fixing base (71).

4. An elevator buffer as defined in claim 1, wherein: the buffer net (4) is provided with buffer holes (41), the shape of the buffer holes (41) is the same as the shape of the bottom surface of the elevator car body (1), and the positions of the circular truncated cone-shaped buffer holes (11), the buffer holes (41) and the hemispherical buffer cushions (21) correspond to each other.

5. An elevator buffer as defined in claim 1, wherein: the large-diameter end of the circular truncated cone-shaped buffer hole (11) is flush with the bottom surface of the elevator car body (1), the small-diameter end of the circular truncated cone-shaped buffer hole (11) is smaller than the diameter of the hemispherical buffer pad (21), the large-diameter end of the circular truncated cone-shaped buffer hole (11) is larger than the diameter of the hemispherical buffer pad (21), and the height of the circular truncated cone-shaped buffer hole (11) is larger than the diameter of the hemispherical buffer pad (21).

6. An elevator buffer as defined in claim 3, wherein: the hemispherical buffer pad (21), the buffer disc (52), the buffer column (6) and the eccentric disc (73) are all made of rubber materials.