CN220078259U

CN220078259U - Car buffer

Info

Publication number: CN220078259U
Application number: CN202320297265.7U
Authority: CN
Inventors: 肖世兵
Original assignee: Mianyang Xingma Elevator Co ltd
Current assignee: Mianyang Xingma Elevator Co ltd
Priority date: 2023-02-23
Filing date: 2023-02-23
Publication date: 2023-11-24
Anticipated expiration: 2033-02-23

Abstract

The utility model discloses a car buffer, which comprises a buffer base, wherein the buffer base is connected with the bottom surface of an elevator shaft, the upper end of the buffer base is fixedly connected with a sleeve, the upper end of the sleeve is sleeved at the lower end of a buffer rod, and the upper end of the buffer rod is fixedly connected with a buffer pad; the sleeve and the buffer rod are sleeved with a buffer spring, the top surface of the buffer base is provided with a reverse buffer unit, and the reverse buffer unit is arranged in the sleeve; the upper end of the sleeve is provided with threads, the threads are arranged on the outer wall of the sleeve, the threads are connected with an adjusting ring in a threaded mode, the adjusting ring is matched with the sleeve, the sleeve is sleeved on the buffer rod, and the top surface of the sleeve is fixedly connected with the lower end of the buffer spring. The utility model effectively buffers the electric instrument car, improves the stability of protecting the elevator car and personnel, and reduces the potential safety hazard in the running process of the elevator car.

Description

Car buffer

Technical Field

The utility model belongs to the technical field of elevator cabs, and particularly relates to a cab buffer.

Background

The elevator car is an important component of an elevator, is a box-shaped space for carrying and transporting personnel and materials, generally consists of a car frame, a car body and a box device, and the elevator car buffer cavity is a safety device for buffer protection of the elevator car and is generally arranged in a pit of a hoistway of the elevator and is positioned under the elevator car.

The existing elevator car buffer is single in structure, the effect of carrying out safety buffering on an elevator car is poor, when the elevator car derails, the effect of effective protection on the elevator car cannot be achieved, the stability of protecting the elevator car and personnel is reduced, and potential safety hazards in the operation process of the elevator car are large.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art, and provides a car buffer which is used for effectively buffering an electric instrument car, so that the stability of protecting the elevator car and personnel is improved, and the potential safety hazard in the running process of the elevator car is reduced.

The aim of the utility model is realized by the following technical scheme: the car buffer comprises a buffer base, a buffer rod, a buffer cushion, a sleeve and a buffer spring, wherein the buffer base is connected with the bottom surface of an elevator shaft, the upper end of the buffer base is fixedly connected with the sleeve, the upper end of the sleeve is sleeved at the lower end of the buffer rod, and the upper end of the buffer rod is fixedly connected with the buffer cushion; the sleeve and the buffer rod are sleeved with the same buffer spring, the top surface of the buffer base is provided with a reverse buffer unit, the reverse buffer unit is arranged in the sleeve, and the reverse buffer unit is fixedly connected with the top surface of the buffer base; the upper end of the sleeve is provided with threads, the threads are arranged on the outer wall of the sleeve, the threads are connected with an adjusting ring in a threaded mode, the adjusting ring is matched with the sleeve, the sleeve is sleeved on the buffer rod, and the top surface of the sleeve is fixedly connected with the lower end of the buffer spring.

Through the scheme, the compression state of the buffer spring can be adjusted by arranging the adjusting ring, so that the strength of the buffer effect of the buffer spring can be adjusted; the arrangement of the reverse buffer unit reduces the reaction force of the buffer spring, so that the elevator is more stable.

Preferably, the outer wall of the sleeve is fixedly connected with a fixed block, the fixed block is symmetrically arranged relative to a vertical plane where a symmetry line of the sleeve is located, the side walls of the fixed block are fixedly connected with a rotating shaft, the rotating shaft is transversely arranged, a rotating plate is rotationally connected to the rotating shaft, one end of the rotating plate is rotationally connected with a first adjusting rod, the upper end of the first adjusting rod is sleeved with a limiting ring, and the limiting ring is fixedly connected with the side walls of the buffer cushions; the other end of the rotating plate is rotationally connected with a second adjusting rod, the upper end of the second adjusting rod is fixedly connected with a buffer plate, and one end of the buffer plate is rotationally connected with one end of the buffer pad.

Through above-mentioned scheme, the buffer board with the rotor plate the setting of first regulation pole, second regulation pole for elevator and buffer gear's area of stress increase improves buffering efficiency.

Preferably, the reverse buffer unit comprises a connecting column, a plurality of reverse buffer sheets are sleeved on the connecting column, the reverse buffer sheets are of arc structures, the cambered surfaces of the reverse buffer sheets face upwards, a limit ring is arranged above the reverse buffer sheets, and the limit ring is fixedly connected with the top surface of the connecting column.

Through above-mentioned scheme, reverse buffer plate's setting reduces the reaction force that buffer spring brought for the elevator is more steady.

Preferably, the bottom surface of the cushion pad is fixedly connected with a first connecting block, and the first connecting block is symmetrically arranged relative to a vertical plane where a symmetry line of the cushion pad is positioned; the lower extreme of first connecting block all rotates and is connected with the connecting rod, the lower extreme of connecting rod is connected with horizontal buffer gear.

Through the scheme, the arrangement of the constant next buffer mechanism enables the elevator to obtain the buffer function of the multi-stage buffer mechanism, and the safety of the elevator is guaranteed.

Preferably, the horizontal buffer mechanism includes horizontal buffer board, the bottom surface of horizontal buffer board with the bottom surface fixed connection of elevator shaft, the top surface of horizontal buffer board is equipped with the buffer tank, the buffer tank transversely sets up, be equipped with the dead lever in the buffer tank, the dead lever transversely sets up, the cover is equipped with horizontal spring on the dead lever, horizontal spring is close to buffer base's one end butt has the second connecting block, the second connecting block cover is located on the dead lever.

Through above-mentioned scheme, the second connecting block is in under the effect of connecting rod, control the removal, through transverse spring realizes the cushioning effect.

Preferably, the top surface of the elevator shaft is provided with a lifting mechanism, the lifting mechanism comprises a motor, the motor is fixedly connected with the top surface of the elevator shaft, the output end of the motor is fixedly connected with a scroll, the scroll is transversely arranged, and two ends of the scroll are rotatably connected with two side walls of a corresponding mounting seat; the traction rope is wound on the scroll, and one end of the traction rope, which is far away from the scroll, is fixedly connected with the elevator; one side of the lifting mechanism is provided with an emergency braking mechanism, the emergency braking pipe mechanism is arranged at one end of the mounting seat far away from the motor, and the emergency braking mechanism is fixedly connected with the top surface of the elevator shaft.

Through the scheme, the emergency braking mechanism limits the falling speed of the elevator and prevents the falling speed from being too high.

Preferably, the emergency braking mechanism comprises a hydraulic cylinder, one end of the hydraulic cylinder, which is close to the mounting seat, is fixedly connected with a locking block, the locking block is provided with an adaptive lug, the lug is arranged on a braking gear, the braking gear is fixedly connected with the side wall of the mounting seat, the braking gear is meshed with a rotating gear, and the rotating gear is fixedly connected with the scroll.

Through the scheme, the hydraulic cylinder is in the reciprocating motion process, the lug is continuously fixed through the locking piece, so that the rotating gear is continuously fixed, the scroll is continuously fixed, the elevator is continuously decelerated under multiple actions, and the falling speed is prevented from being too fast.

The beneficial effects of the utility model are as follows: according to the utility model, through the arrangement of the buffer plate, the contact area between the buffer mechanism and the elevator can be increased, and meanwhile, the arrangement of the adjusting ring is convenient for adjusting the compression state of the buffer spring, so as to adjust the buffer force of the buffer spring; then, through the arrangement of the second buffer mechanism, the buffer effect on the elevator is further improved, and the safety of the elevator is ensured; finally, the emergency braking mechanism is combined to limit the falling speed of the elevator, so that the impact force of the elevator and the buffer mechanism is reduced, and the buffer effect of the buffer mechanism is ensured. The reverse buffer unit reduces the reaction force of the buffer spring and delays the rising speed of the buffer rod, so that jolt caused by the reaction force is reduced, and the riding comfort of the elevator is improved.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic structural view of a buffer mechanism;

FIG. 3 is a schematic structural view of an emergency brake mechanism;

FIG. 4 is a schematic view of a lateral cushioning mechanism;

FIG. 5 is a side view of the lift mechanism;

in the figure, 1-elevator shaft, 2-elevating mechanism, 3-emergency braking mechanism, 301-hydraulic cylinder, 302-locking piece, 303-braking gear, 304-lug, 4-elevator, 5-haulage rope, 6-buffering base, 7-limit collar, 8-reverse buffering unit, 9-sleeve, 10-adjusting collar, 11-buffer rod, 12-first adjusting lever, 13-second adjusting lever, 14-rotating plate, 15-fixed block, 16-first connecting block, 17-second connecting block, 18-transverse buffer plate, 19-fixed rod, 20-transverse spring, 21-connecting rod.

Detailed Description

The technical solution of the present utility model will be described in further detail with reference to the accompanying drawings, but the scope of the present utility model is not limited to the following description.

Example 1

As shown in fig. 1-5, the car buffer comprises a buffer base 6, a buffer rod 11, a buffer pad, a sleeve 9 and a buffer spring, wherein the buffer base 6 is connected with the bottom surface of an elevator 4 shaft 1, the upper end of the buffer base 6 is fixedly connected with the sleeve 9, the upper end of the sleeve 9 is sleeved at the lower end of the buffer rod 11, and the upper end of the buffer rod 11 is fixedly connected with the buffer pad; the sleeve 9 and the buffer rod 11 are sleeved with the same buffer spring, and the upper end of the buffer spring is fixedly connected with the bottom surface of the buffer pad; the top surface of the buffer base 6 is provided with a reverse buffer unit 8, the reverse buffer unit 8 is arranged in the sleeve 9, and the reverse buffer unit 8 is fixedly connected with the top surface of the buffer base 6; the upper end of sleeve 9 is equipped with the screw thread, the screw thread set up in the outer wall of sleeve 9, the screw thread spiro union has adjusting ring 10, adjusting ring 10's inner wall with the outer wall butt of sleeve 9, sleeve 9 cover is located on the buffer rod 11, the top surface of sleeve 9 with buffer spring's lower extreme fixed connection. The outer wall of the sleeve 9 is fixedly connected with a fixed block, the fixed block is symmetrically arranged relative to a vertical plane where a symmetry line of the sleeve 9 is located, the side walls of the fixed block are fixedly connected with a rotating shaft, the rotating shaft is transversely arranged, a rotating plate 14 is rotationally connected to the rotating shaft, one end of the rotating plate 14 is rotationally connected with a first adjusting rod 12, the upper end of the first adjusting rod 12 is sleeved with a limiting ring, and the limiting ring is fixedly connected with the side walls of the cushion pad; the other end of the rotating plate 14 is rotatably connected with a second adjusting rod 13, the upper end of the second adjusting rod 13 is fixedly connected with a buffer plate, and one end of the buffer plate is rotatably connected with one end of the buffer pad; the upper end of the first adjusting rod 12 is higher than the horizontal plane of the cushion pad, and the position of the cushion plate is lower than the horizontal plane of the cushion pad; when the rotating plate 14 is in a horizontal position, the buffer plate is horizontal and is in the same horizontal plane as the buffer pad, and the top surface of the first adjusting lever 12 is also in the same horizontal plane as the buffer pad. The reverse buffer unit 8 comprises a connecting column, two reverse buffer sheets are sleeved on the connecting column, the reverse buffer sheets are arc-shaped hard metal elastic sheets, the cambered surfaces of the reverse buffer sheets face upwards, a limit ring 7 is arranged above the reverse buffer sheets, the limit ring 7 is fixedly connected with the top surface of the connecting column, and the upper surface of the limit ring 7 is lower than the upper end of the reverse buffer sheets.

In the specific implementation, the state of the buffer spring is regulated by the regulating ring 10, so that the purpose of regulating the buffer capacity of the buffer spring is achieved, and the buffer spring is suitable for different elevators 4. After the elevator 4 falls down, the first adjusting rod 12 is pressed down, the second adjusting rod 13 is lifted up through the action of the rotating plate 14, so that the buffer plate is positioned at a horizontal position, the stress area of the elevator 4 is increased, and the buffer effect is improved. The connecting rod 21 is pressed down to contact the reverse buffer unit 8, so that the rising speed of the buffer rod 11 can be delayed when the buffer spring causes a reaction force, thereby reducing jolt caused by the reaction force and improving the riding comfort of the elevator 4.

Example 2

On the basis of embodiment 1, the bottom surface of the cushion pad is fixedly connected with a first connecting block 16, and the first connecting block 16 is symmetrically arranged relative to a vertical plane where a symmetry line of the cushion pad is located; the lower extreme of first linkage block 16 all rotates and is connected with connecting rod 21, connecting rod 21 set up in first regulation pole 12 with between the second regulation pole 13, the lower extreme of connecting rod 21 is connected with horizontal buffer gear. The horizontal buffer mechanism comprises a horizontal buffer plate 18, the bottom surface of the horizontal buffer plate 18 is fixedly connected with the bottom surface of the elevator 4 shaft 1, buffer grooves are formed in the top surface of the horizontal buffer plate 18, the buffer grooves are formed in two sides of the buffer base 6 and are symmetrically arranged relative to the vertical surface where the symmetry line of the buffer base 6 is located, the buffer grooves are transversely formed, fixing rods 19 are arranged in the buffer grooves, the fixing rods 19 are transversely arranged, a horizontal spring 20 is sleeved on the fixing rods 19, one end of each horizontal spring 20, close to the buffer base 6, is abutted to a second connecting block 17, and the second connecting block 17 is sleeved on the fixing rods 19. The top surface of the elevator 4 shaft 1 is provided with a lifting mechanism 2, the lifting mechanism 2 comprises a motor, the motor is fixedly connected with the top surface of the elevator 4 shaft 1, the output end of the motor is fixedly connected with a scroll, the scroll is transversely arranged, and two ends of the scroll are rotatably connected with two side walls of a corresponding mounting seat; the traction rope 5 is wound on the scroll, and one end, away from the scroll, of the traction rope 5 is fixedly connected with the elevator 4; one side of the lifting mechanism 2 is provided with an emergency braking mechanism 3, the emergency braking pipe mechanism is arranged at one end of the mounting seat far away from the motor, and the emergency braking mechanism 3 is fixedly connected with the top surface of the elevator 4 shaft 1. The emergency braking mechanism 3 comprises a hydraulic cylinder 301, a locking block 302 is fixedly connected to one end, close to the mounting seat, of the hydraulic cylinder 301, an adaptive protruding block 304 is arranged on the locking block 302, the protruding block 304 is arranged on a braking gear 303, the locking block 302 is arranged in a dislocation mode with the protruding block 304, after the hydraulic cylinder 301 stretches, the protruding block 304 is abutted to the locking block 302, the braking gear 303 is fixedly connected with the side wall of the mounting seat, a rotating gear is meshed with the braking gear 303, and the rotating gear is fixedly connected with the scroll.

During specific implementation, in the buffering process of the buffer spring, the connecting rod 21 and the transverse spring 20 perform multi-gradient buffer protection on the elevator 4, so that the effect of performing safety buffer on the elevator 4 car is improved, the potential safety hazard in the operation process of the elevator 4 car is reduced, and the stability of safety buffer of the elevator 4 car for safety protection on the elevator 4 car and personnel is improved. Meanwhile, the hydraulic cylinder 301 continuously brakes the rotating gear, that is, continuously fixes the reel, so that the elevator 4 is continuously braked in the falling process, the speed of the elevator is prevented from being too high, the impact force on the buffer mechanism is too high, and protection is further provided.

The foregoing is merely a preferred embodiment of the utility model, and it is to be understood that the utility model is not limited to the form disclosed herein but is not to be construed as excluding other embodiments, but is capable of numerous other combinations, modifications and environments and is capable of modifications within the scope of the inventive concept, either as taught or as a matter of routine skill or knowledge in the relevant art. And that modifications and variations which do not depart from the spirit and scope of the utility model are intended to be within the scope of the appended claims.

Claims

1. The car buffer comprises a buffer base (6), a buffer rod (11), a buffer pad, a sleeve (9) and a buffer spring, wherein the buffer base (6) is connected with the bottom surface of an elevator shaft (1), the upper end of the buffer base (6) is fixedly connected with the sleeve (9), the upper end of the sleeve (9) is sleeved at the lower end of the buffer rod (11), and the upper end of the buffer rod (11) is fixedly connected with the buffer pad; the sleeve (9) and the buffer rod (11) are sleeved with the same buffer spring, and the buffer rod is characterized in that: the top surface of the buffering base (6) is provided with a reverse buffering unit (8), the reverse buffering unit (8) is arranged in the sleeve (9), and the reverse buffering unit (8) is fixedly connected with the top surface of the buffering base (6); the upper end of sleeve (9) is equipped with the screw thread, the screw thread set up in the outer wall of sleeve (9), the screw thread spiro union has adjusting ring (10), adjusting ring (10) with sleeve (9) adaptation, sleeve (9) cover is located on buffer rod (11), the top surface of sleeve (9) with buffer spring's lower extreme fixed connection.

2. A car buffer as claimed in claim 1, wherein: the outer wall of the sleeve (9) is fixedly connected with a fixed block, the fixed block is symmetrically arranged relative to a vertical plane where a symmetry line of the sleeve (9) is located, the side walls of the fixed block are fixedly connected with rotating shafts, the rotating shafts are transversely arranged, a rotating plate (14) is rotatably connected to the rotating shafts, one end of the rotating plate (14) is rotatably connected with a first adjusting rod (12), the upper end of the first adjusting rod (12) is sleeved with a limiting ring, and the limiting ring is fixedly connected with the side walls of the buffer cushions; the other end of the rotating plate (14) is rotationally connected with a second adjusting rod (13), the upper end of the second adjusting rod (13) is fixedly connected with a buffer plate, and one end of the buffer plate is rotationally connected with one end of the buffer pad.

3. A car buffer as claimed in claim 1, wherein: the reverse buffer unit (8) comprises a connecting column, a plurality of reverse buffer sheets are sleeved on the connecting column, the reverse buffer sheets are of arc structures, the cambered surfaces of the reverse buffer sheets face upwards, a limit ring (7) is arranged above the reverse buffer sheets, and the limit ring (7) is fixedly connected with the top surface of the connecting column.

4. A car buffer as claimed in claim 1, wherein: the bottom surface of the cushion pad is fixedly connected with a first connecting block (16), and the first connecting block (16) is symmetrically arranged relative to a vertical surface where a symmetry line of the cushion pad is positioned; the lower extreme of first connecting block (16) all rotates and is connected with connecting rod (21), the lower extreme of connecting rod (21) is connected with horizontal buffer gear.

5. The car buffer of claim 4, wherein: the horizontal buffer gear includes horizontal buffer board (18), the bottom surface of horizontal buffer board (18) with the bottom surface fixed connection of elevator shaft (1), the top surface of horizontal buffer board (18) is equipped with the dashpot, the dashpot transversely sets up, be equipped with dead lever (19) in the dashpot, dead lever (19) transversely set up, the cover is equipped with transverse spring (20) on dead lever (19), transverse spring (20) are close to one end butt of buffering base (6) has second connecting block (17), second connecting block (17) cover are located on dead lever (19).

6. A car buffer as claimed in claim 1, wherein: the elevator is characterized in that a lifting mechanism (2) is arranged on the top surface of the elevator shaft (1), the lifting mechanism (2) comprises a motor, the motor is fixedly connected with the top surface of the elevator shaft (1), the output end of the motor is fixedly connected with a reel, the reel is transversely arranged, and two ends of the reel are rotatably connected with two side walls of a corresponding mounting seat; the traction rope (5) is wound on the scroll, and one end, far away from the scroll, of the traction rope (5) is fixedly connected with the elevator (4); one side of the lifting mechanism (2) is provided with an emergency braking mechanism (3), the emergency braking mechanism (3) is arranged at one end of the mounting seat away from the motor, and the emergency braking mechanism (3) is fixedly connected with the top surface of the elevator shaft (1).

7. The car buffer of claim 6, wherein: the emergency braking mechanism (3) comprises a hydraulic cylinder (301), one end, close to the mounting seat, of the hydraulic cylinder (301) is fixedly connected with a locking block (302), the locking block (302) is provided with an adaptive protruding block (304), the protruding block (304) is arranged on a braking gear (303), the braking gear (303) is fixedly connected with the side wall of the mounting seat, the braking gear (303) is meshed with a rotating gear, and the rotating gear is fixedly connected with the scroll.