CN212334304U

CN212334304U - Buffer for elevator

Info

Publication number: CN212334304U
Application number: CN202020947276.1U
Authority: CN
Inventors: 梁建新
Original assignee: Suzhou Deling Yicheng Seiko Machinery Co ltd
Current assignee: Suzhou Deling Yicheng Seiko Machinery Co ltd
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2021-01-12
Anticipated expiration: 2030-05-29

Abstract

The utility model discloses a buffer for elevator, including the elevator well, the internally mounted of elevator well has the car, and the bottom mounting of car has the lug, and the bottom mounting of lug has first buffer beam, and the bottom mounting of elevator well has the backup pad, and the top of backup pad is fixed with the supporting shoe, and the top pad of supporting shoe has the blotter, and open the inside of supporting shoe has the dashpot, and the internally mounted of dashpot has first spring, and first buffer beam inserts the dashpot. When the elevator weighs down and falls elevator well bottom, inside first buffer beam inserted the buffer slot, inside second spout pole inserted the slot, both played the cushioning effect, fixed a position the car again stably, avoided the car to rock crooked, the inside personnel of protection car. The lug is fixed to the car bottom, thickens the bottom of car, avoids the bottom of car to break because of vibrations.

Description

Buffer for elevator

Technical Field

The utility model belongs to the technical field of the elevator, specifically be a buffer for elevator.

Background

At present, high buildings in cities are increasingly high in maintenance, and an elevator becomes an indispensable vehicle when people go out. However, the elevator brings convenience to people and brings much trouble to people, once power failure occurs or the elevator breaks down, the elevator can be suspended in the air or falls from the air at a high speed, and therefore, the falling speed of the elevator can be effectively reduced by arranging some buffer devices in the elevator, and the safety of passengers is protected.

Chinese patent publication No. CN108147252A in 2018, 6 and 12 discloses a buffer device for an elevator, which comprises a car and a spring buffer structure, the outer cage body is positioned in the elevator shaft, a fixed rod arranged in the outer cage is fixedly connected with an inner cage, a carriage body is arranged in the inner lift car, a lighting lamp group is arranged at the top of the carriage body, a guide slideway is fixedly connected in the middle of the fixed rod, an upper cover plate fixing bracket is arranged at the top of the outer lift car, a dragging rope is fixedly connected with the upper cover plate fixing bracket, the middle parts of the tops of the inner lift car and the outer lift car are provided with upper end spring buffer structures, the middle parts of the outer lift car body and the lift shaft are provided with slideways, a support plate is arranged at the bottom of the inner lift car, a lower end spring assembly is welded at the bottom of the support plate, an anti-collision plate is installed below the lower end spring assembly, and a cushion pad is installed at the bottom of the anti-collision plate. This buffer for elevator through upper end spring buffer structure, direction slide, collaborative work, improves buffer's security.

The existing buffer device for the elevator improves the safety of the buffer device through the cooperative work of an upper end spring buffer structure and a guide slideway. However, when the elevator fell to the elevator well bottom, owing to receive impact and buffering, lead to the car unstable in the elevator well bottom, can appear crooked the rocking, lead to the inside personnel of car to be injured easily. Meanwhile, the bottom end of the car is most strongly vibrated when the car falls, so that the bottom end of the car is easy to break.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a buffer for elevator to when the solution falls elevator well bottom at the elevator, owing to receive impact and buffering, lead to the car unstable in elevator well bottom, can appear crooked rocking, lead to the inside injured person's problem of car easily.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a buffer for elevator, includes the elevator well, the internally mounted of elevator well has the car, the bottom mounting of car has the lug, the bottom mounting of lug has first buffer beam, and the bottom of first buffer beam is the hemisphere, the bottom mounting of elevator well has the backup pad, the top of backup pad is fixed with the supporting shoe, the top pad of supporting shoe has the blotter, open the inside of supporting shoe has the dashpot, the internally mounted of dashpot has first spring, and the top of first spring does not surpass the dashpot, first buffer beam inserts the dashpot.

Preferably, the bottom of car is opened there is the slot, open on the surface of backup pad has the guiding hole, the inside of guiding hole is passed and is had the second buffer beam, the slot is inserted to the second buffer beam, the bottom mounting of second buffer beam has the limiting plate, the bottom of limiting plate is connected with the second spring.

Preferably, the bottom end of the supporting plate is connected with a third spring, and the bottom end of the third spring is connected with a backing plate.

Preferably, the bottom of car and the bottom of elevator well are parallel, the bottom of lug is the arc structure, the bottom of first buffer beam and car is perpendicular.

Preferably, the supporting plate is parallel to the bottom end of the elevator shaft, and the length and width of the supporting block are not greater than those of the supporting plate and are positioned in the middle of the supporting plate; the top end of the supporting block is of an arc-shaped sunken structure and is matched with the arc-shaped surface of the bottom end of the lug, and when the lift car falls, the bottom end of the lug falls on the top end of the supporting block; the depth of the buffer groove is not less than the length of the first buffer rod.

Preferably, the second buffer rod is perpendicular to the support plate, the depth of the slot is smaller, and the slot is located at the edge of the car; and the second buffer rod is connected with the bottom end of the elevator shaft through a second spring.

Preferably, the backing plate is parallel with the backup pad, the backing plate is connected with the backup pad through the third spring, the length and width of backing plate all is not greater than the length and width of backup pad.

Compared with the prior art, the beneficial effects of the utility model are that: 1. when the elevator weighs down and falls elevator well bottom, inside first buffer beam inserted the buffer slot, inside second spout pole inserted the slot, both played the cushioning effect, fixed a position the car again stably, avoided the car to rock crooked, the inside personnel of protection car.

2. The lug is fixed to the car bottom, thickens the bottom of car, avoids the bottom of car to break because of vibrations.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a sectional view taken along the direction a-a of fig. 1 according to the present invention;

fig. 3 is a schematic view of the car falling structure of fig. 1 according to the present invention;

fig. 4 is a bottom view of the car bottom end of fig. 1 according to the present invention.

In the figure: 1. an elevator hoistway; 2. a car; 3. a bump; 4. a first buffer rod; 5. a slot; 6. a second buffer rod; 7. a buffer tank; 8. a first spring; 9. a support block; 10. a cushion pad; 11. a support plate; 12. a guide hole; 13. a limiting plate; 14. a second spring; 15. a third spring; 16. a backing plate.

Detailed Description

Referring to fig. 1, 3 and 4, a buffering device for an elevator includes an elevator shaft 1, a car 2 is installed inside the elevator shaft 1, and a bottom end of the car 2 is parallel to a bottom end of the elevator shaft 1; the bottom mounting of car 2 has lug 3, and the bottom of lug 3 is the arc structure for thickening car 2's bottom.

Referring to fig. 1, 3 and 4, a first buffer rod 4 is fixed at the bottom end of the bump 3, the bottom end of the first buffer rod 4 is a hemisphere, and the first buffer rod 4 is perpendicular to the bottom end of the car 2 and perpendicular to the supporting block 9.

Referring to fig. 1, 2 and 3, a support plate 11 is fixed at the bottom end of the elevator shaft 1, and the support plate 11 is parallel to the bottom end of the elevator shaft 1; the top end of the supporting plate 11 is fixed with a supporting block 9, the length and the width of the supporting block 9 are not larger than those of the supporting plate 11, and the supporting block 9 is positioned in the middle of the supporting plate 11; the top end of the supporting block 9 is of an arc-shaped sunken structure and is matched with the arc-shaped surface of the bottom end of the lug 3, and when the car 2 falls, the bottom end of the lug 3 falls on the top end of the supporting block 9; the top end of the supporting block 9 is padded with a cushion pad 10 for buffering and damping the lug 3.

Please refer to fig. 1, fig. 2 and fig. 3, a buffer slot 7 is opened inside a supporting block 9, the depth of the buffer slot 7 is not less than the length of the first buffer rod 4, a first spring 8 is installed inside the buffer slot 7, the top end of the first spring 8 does not exceed the buffer slot 7, the car 2 falls behind, the first buffer rod 4 is inserted into the buffer slot 7, and the bottom end compresses the first spring 8, the first buffer rod 4 is buffered by the air damping in the buffer slot inside the buffer slot 7 and the spring damping, the buffering and shock absorption effects are good, and the car 2 is positioned stably, so that the car 2 is prevented from shaking and skewing, and the personnel inside the car 2 are protected.

Referring to fig. 1, 2 and 3, the bottom end of the car 2 is provided with a slot 5, the depth of the slot 5 is smaller, and the slot 5 is located at the edge of the car 2; the surface of the supporting plate 11 is provided with a guide hole 12, and the guide hole 12 is aligned with the slot 5 up and down; a second buffer rod 6 penetrates through the guide hole 12, and the second buffer rod 6 is vertical to the support plate 11; when the car 2 falls, the second buffer rod 6 is inserted into the slot 5, and the car 2 presses the second buffer rod 6 to buffer and damp.

Referring to fig. 1, 2 and 3, a limiting plate 13 is fixed to the bottom end of the second buffer rod 6, the limiting plate 13 is located below the supporting plate 11, a second spring 14 is connected to the bottom end of the limiting plate 13, the second buffer rod 6 is connected to the bottom end of the elevator shaft 1 through the second spring 14, and the car 2 presses the second buffer rod 6 to compress the second spring 14 downward.

Referring to fig. 1 and 3, the bottom end of the supporting plate 11 is connected with a third spring 15, the bottom end of the third spring 15 is connected with a backing plate 16, the backing plate 16 is parallel to the supporting plate 11, the backing plate 16 is connected with the supporting plate 11 through the third spring 15, the length and the width of the backing plate 16 are not greater than those of the supporting plate 11, when the car 2 falls, when the whole weight of the car 2 is very large, the connection between the supporting plate 11 and the elevator shaft 1 is broken, and the third spring 15 is used for buffering and damping between the supporting plate 11 and the backing plate 16.

The working principle of the scheme is as follows: the car 2 is installed inside the elevator shaft 1, and the first buffer rod 4 is installed at the bottom end of the car 2 through the bump 3.

The supporting plate 11 is fixed at the bottom end of the elevator hoistway 1, the supporting block 9 is fixed at the top end of the supporting plate 11, and the cushion pad 10 is attached to the supporting block; the second buffer rod 6 passes through the support plate 11, and the bottom end thereof is connected to the bottom end of the elevator shaft 1 through a limit plate 13 and a second spring 14.

When the cage 2 falls, the first buffer rod 4 is inserted into the buffer groove 7, and the second buffer rod 6 is inserted into the slot 5; the first spring 8 of bottom compression of first buffer beam 4, first buffer beam 4 receive the air damping of inslot at buffer slot 7 inside and cushion and spring damping cushions, and buffering shock attenuation is effectual, fixes a position stably to car 2 again moreover.

Meanwhile, the second buffer rod 6 is pressed by the car 2, and the second buffer rod 6 compresses the second spring 14 downwards to buffer and damp and position stably.

When the car 2 falls, when the whole weight of the car 2 is very large, the connection between the support plate 11 and the elevator shaft 1 is broken, and at this time, the third spring 15 is used for buffering and damping between the support plate 11 and the backing plate 16.

Claims

1. A buffer device for an elevator, comprising an elevator shaft (1), characterized in that: the internally mounted of elevator well (1) has car (2), the bottom mounting of car (2) has lug (3), the bottom mounting of lug (3) has first buffer beam (4), the bottom mounting of elevator well (1) has backup pad (11), the top of backup pad (11) is fixed with supporting shoe (9), the top pad of supporting shoe (9) has blotter (10), open the inside of supporting shoe (9) has dashpot (7), the internally mounted of dashpot (7) has first spring (8), first buffer beam (4) insert dashpot (7).

2. A buffer device for an elevator according to claim 1, wherein: open the bottom of car (2) has slot (5), open the surface of backup pad (11) has guiding hole (12), the inside of guiding hole (12) is passed and is had second buffer beam (6), slot (5) are inserted in second buffer beam (6), the bottom mounting of second buffer beam (6) has limiting plate (13), the bottom of limiting plate (13) is connected with second spring (14).

3. A buffer device for an elevator according to claim 1, wherein: the bottom end of the supporting plate (11) is connected with a third spring (15), and the bottom end of the third spring (15) is connected with a backing plate (16).

4. A buffer device for an elevator according to claim 1, wherein: the bottom of car (2) is parallel with the bottom of elevator well (1), the bottom of lug (3) is the arc structure, the bottom of first buffer beam (4) and car (2) is perpendicular.

5. A buffer device for an elevator according to claim 1, wherein: the supporting plate (11) is parallel to the bottom end of the elevator hoistway (1), the top end of the supporting block (9) is of an arc-shaped concave structure, and the depth of the buffer groove (7) is not smaller than the length of the first buffer rod (4).

6. A buffer device for an elevator according to claim 2, wherein: the second buffer rod (6) is perpendicular to the supporting plate (11), and the second buffer rod (6) is connected with the bottom end of the elevator shaft (1) through a second spring (14).

7. A buffer device for an elevator according to claim 3, wherein: the backing plate (16) is parallel to the supporting plate (11), the backing plate (16) is connected with the supporting plate (11) through a third spring (15), and the length and the width of the backing plate (16) are not larger than those of the supporting plate (11).