CN215047817U

CN215047817U - Elevator car with buffer function

Info

Publication number: CN215047817U
Application number: CN202121260931.7U
Authority: CN
Inventors: 林波; 陈云祥; 吴韬; 章茜; 钟振隆
Original assignee: Zhejiang Institute of Mechanical and Electrical Engineering Co Ltd
Current assignee: Chenyu Elevator Technology Co.,Ltd.
Priority date: 2021-06-07
Filing date: 2021-06-07
Publication date: 2021-12-07
Anticipated expiration: 2031-06-07

Abstract

The utility model relates to the technical field of elevator safety, and discloses an elevator car with buffer function, has solved the elevator car shock-absorbing structure on the existing market comparatively single can not effectively carry out the shock attenuation, have very big potential safety hazard, lack elevator speed reduction measure and the problem that the life safety of taking personnel can not be guaranteed, and it includes the base, the top fixedly connected with threaded rod of base, the outside activity of threaded rod has cup jointed the slider, the inner chamber swing joint of slider has the clutch blocks, the inner chamber activity of clutch blocks has cup jointed the inserted bar, the side fixedly connected with box of slider, the top fixedly connected with pulley of box inner chamber; the utility model discloses, have the advantage that takes personnel life safety in the protection elevator, avoid the elevator to fall and cause the injury, effectively carry out the shock attenuation to the elevator, prevent that the box from jolting repeatedly to taking personnel.

Description

Elevator car with buffer function

Technical Field

The utility model belongs to the technical field of elevator safety, specifically be an elevator car with buffer function.

Background

In recent years, cities in China develop rapidly, high buildings in various regions rise over the ground, so that an elevator becomes one of transportation means commonly used in modern buildings, the elevator is a vertical elevator taking a motor as power and provided with a box-shaped nacelle used for carrying people or goods in a multi-storey building and serving fixed lifting equipment of a specified storey, the vertical elevator is provided with a car which runs between at least two rows of vertical rigid guide rails or rigid guide rails with the inclination angle of less than 15 degrees, the size and the structural form of the car are convenient for passengers to enter or unload the goods, and the elevator is used as a general name of vertical transportation means in the building regardless of the driving mode.

But the elevator car structure on the existing market is comparatively single, does not have good protective structure, a damping device for elevator sets up a rubber base in elevator car bottom usually, when the elevator promptly falls, it can not carry out the shock attenuation effectively, there is very big potential safety hazard, in addition when the elevator takes place to fall, do not carry out the measure of slowing down to the elevator, terminal speed is great when elevator car freely falls, it can receive very big injury or even death to take personnel in the elevator, in view of above defect, we have provided an elevator car with buffer function.

Disclosure of Invention

To the above situation, for overcoming prior art's defect, the utility model provides an elevator car with buffer function, the effectual elevator car shock-absorbing structure who has solved on the existing market comparatively single can not carry out the shock attenuation effectively, have very big potential safety hazard, lack elevator speed reduction measure and take personnel's life safety can not obtain the problem of assurance.

In order to achieve the above object, the utility model provides a following technical scheme: an elevator car with a buffering function comprises a base, wherein a threaded rod is fixedly connected to the top of the base, a sliding block is movably sleeved outside the threaded rod, an inner cavity of the sliding block is movably connected with a friction block, an inner cavity of the friction block is movably sleeved with an inserted rod, a box body is fixedly connected to the side face of the sliding block, and a pulley is fixedly connected to the top of the inner cavity of the box body;

the utility model discloses a supporting rod, including base, threaded rod, No. two springs, the top activity that the base is located the threaded rod side has cup jointed the bracing piece, the outside activity of bracing piece has cup jointed No. two springs, the top fixedly connected with backup pad of bracing piece, the movable rod has been cup jointed in the top activity of backup pad, the side fixedly connected with stopper that the box is located the slider bottom, the top fixedly connected with fixed block that the base is located the bracing piece side, the movable block has been cup jointed in the inner chamber activity of fixed block.

Preferably, the side surface of the friction block is fixedly connected with a first spring, and one side of the first spring is fixedly connected with one side of the inner wall of the sliding block.

Preferably, a steel wire rope is movably sleeved outside the pulley, a handle is fixedly connected to the bottom of the steel wire rope, and one end of the steel wire rope is fixedly connected with one side of the inserted rod.

Preferably, the inner cavity of the box body at the bottom of the pulley is fixedly connected with a top plate, and the side face of the steel wire rope penetrates through the top of the top plate.

Preferably, the outer part of the movable rod is movably sleeved with a third spring, and the top of the movable rod is fixedly connected with a bottom plate.

Preferably, the inner cavity of the fixed block is provided with a fourth spring, and the inner wall of the fixed block and the side surface of the movable block are fixedly connected with two sides of the fourth spring.

Compared with the prior art, the beneficial effects of the utility model are that:

1) during work, the handle, the steel wire rope, the pulley, the inserted rod, the friction block, the first spring and the threaded rod are arranged, when the elevator falls, the handle is rapidly pulled downwards, the handle drives the steel wire rope to move downwards, the steel wire rope drives the inserted rod to horizontally move to draw the inserted rod out of an inner cavity of the friction block, one side of the friction block with the saw teeth is pressed on the threaded rod under the action of the slider and the first spring, the saw teeth on the side face of the friction block and the threads on the threaded rod are subjected to severe friction to generate large friction force, and the side face of the slider is fixedly connected with the side face of the box body, so that the elevator car is prevented from falling, the falling speed of the elevator car is greatly reduced, even the elevator can be stopped, the life safety of passengers in the elevator is protected, and the injury to the passengers caused by the falling of the elevator is avoided;

2) by arranging a second spring, a third spring, a movable rod, a supporting rod, a movable block, a limiting block and a fourth spring, when the elevator falls from a higher floor and the falling speed is higher, the speed reducing mechanism loses effect, the bottom of the elevator car collides with a bottom plate, the third spring has lower elastic coefficient relative to the second spring, the third spring is compressed to buffer the box body at the first layer under the limit of the movable rod, the impact on the third spring is acted on the top of the supporting plate, the second spring is compressed to buffer the box body at the second layer under the limit of the supporting rod, the elevator is effectively damped, the impact force between the elevator car and a base when the elevator falls is greatly reduced, the life safety of passengers in the elevator is protected, the box body drives the limiting block to move downwards when the elevator falls, and the limiting block and the movable block in the inner cavity of the fixed block are extruded through an inclined plane, the movable block removes to the fixed block inner chamber, and the stopper moves to the movable block bottom down, and under the effect of No. four springs, the movable block is rebounded, fixes the stopper, prevents box rebound, prevents that the box from upwards kick-backing under the reaction of No. two springs and No. three springs and jolting repeatedly, causes secondary injury to the person of taking.

Drawings

The accompanying drawings are included to provide a further understanding of the 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 invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic front view of the structure of the present invention;

FIG. 2 is a schematic side view of a component of the structure of the present invention;

FIG. 3 is a schematic side view of a friction block component according to the present invention;

FIG. 4 is an enlarged schematic view of the structure of the present invention at the position A;

FIG. 5 is an enlarged schematic view of the structure of the present invention at the position B;

in the figure: 1. a base; 2. a threaded rod; 3. a slider; 4. a friction block; 5. inserting a rod; 6. a first spring; 7. a box body; 8. a wire rope; 9. a top plate; 10. a pulley; 11. a handle; 12. a support bar; 13. a second spring; 14. a support plate; 15. a movable rod; 16. a third spring; 17. a limiting block; 18. a movable block; 19. a fixed block; 20. a fourth spring; 21. a base plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the embodiment, given by fig. 1-5, the utility model discloses a base 1, the top fixedly connected with threaded rod 2 of base 1, the outside activity of threaded rod 2 has cup jointed slider 3, the inner chamber activity of slider 3 has connected with clutch block 4, the inner chamber activity of clutch block 4 has cup jointed inserted bar 5, the sawtooth of the side of clutch block 4 can take place violent friction with the screw thread on threaded rod 2, produce great frictional force, thereby prevented falling of elevator car, the side fixedly connected with box 7 of slider 3, the top fixedly connected with pulley 10 of the inner chamber of box 7, pulley 10 can change the direction of motion of wire rope 8;

the bracing piece 12 has been cup jointed in the top activity that base 1 is located 2 sides of threaded rod, No. two springs 13 have been cup jointed in the outside activity of bracing piece 12, spacing at bracing piece 12, No. two springs 13 are compressed and can carry out the second floor buffering to box 7, the top fixedly connected with backup pad 14 of bracing piece 12, movable rod 15 has been cup jointed in the top activity of backup pad 14, spacing at movable rod 15, No. three springs 16 are compressed and carry out the first floor buffering to box 7, box 7 is located the side fixedly connected with stopper 17 of slider 3 bottom, base 1 is located the top fixedly connected with fixed block 19 of bracing piece 12 side, movable block 18 has been cup jointed in the inner chamber activity of fixed block 19, movable block 18 can remove about the fixed block 19 inner chamber.

Wherein, the side fixedly connected with spring 6 No. one of clutch blocks 4, and one side of spring 6 and one side fixed connection of 3 inner walls of slider, under slider 3 and spring 6's effect, one side that clutch blocks 4 has the sawtooth is compressed tightly on threaded rod 2.

Wherein, the outside activity of pulley 10 has cup jointed wire rope 8, and wire rope 8's bottom fixedly connected with handle 11, and wire rope 8's one end and one side fixed connection of inserted bar 5, handle 11 drive wire rope 8 and remove to take inserted bar 5 out from the inner chamber of clutch blocks 4.

The inner cavity of the box body 7 at the bottom of the pulley 10 is fixedly connected with a top plate 9, the side face of the steel wire rope 8 penetrates through the top of the top plate 9, and the pulley 10 and the steel wire rope 8 are sealed at the top of the inner cavity of the box body 7 by the top plate 9 to keep the attractiveness.

Wherein, the outside activity of movable rod 15 is cup jointed No. three spring 16, and the top fixedly connected with bottom plate 21 of movable rod 15, and the bottom when elevator car falls is at first strikeed mutually with bottom plate 21.

Wherein, the inner cavity of the fixed block 19 is provided with a fourth spring 20, the inner wall of the fixed block 19 and the side surface of the movable block 18 are fixedly connected with the two sides of the fourth spring 20, and the extruded movable block 18 can be rebounded under the action of the fourth spring 20.

The working principle is as follows: when the elevator falls, the handle 11 is rapidly pulled downwards, the handle 11 drives the steel wire rope 8 to move downwards, under the direction change of the pulley 10, the pulley 10 and the steel wire rope 8 are sealed at the top of the inner cavity of the box body 7 by the top plate 9, the attractiveness is kept, the steel wire rope 8 drives the inserted rod 5 to horizontally move to draw out the inserted rod from the inner cavity of the friction block 4, under the action of the sliding block 3 and the first spring 6, one side of the friction block 4 with the saw teeth is pressed on the threaded rod 2, the saw teeth on the side surface of the friction block 4 and the threads on the threaded rod 2 generate violent friction to generate larger friction force, the side surface of the sliding block 3 is fixedly connected with the side surface of the box body 7, therefore, the falling of the elevator car is prevented, the falling speed of the elevator car is greatly reduced, even the elevator can be stopped, the life safety of passengers in the elevator is protected, and the passengers are prevented from being injured by the falling of the elevator;

when the elevator falls from a higher floor and the falling speed is higher, the speed reducing mechanism is disabled, the bottom of the elevator car collides with the bottom plate 21, the third spring 16 has a lower elastic coefficient relative to the second spring 13, the third spring 16 is compressed to buffer the box body 7 at the first layer under the limit of the movable rod 15, the impact on the third spring 16 acts on the top of the supporting plate 14, the second spring 13 is compressed to buffer the box body 7 at the second layer under the limit of the supporting rod 12, the elevator is effectively damped, the impact force between the elevator car and the base 1 when falling is greatly reduced, the life safety of passengers in the elevator is protected, when the elevator falls, the box body 7 drives the limit block 17 to move downwards, the limit block 17 and the movable block 18 in the cavity of the fixed block 19 are extruded through the inclined plane, the movable block 18 moves towards the cavity of the fixed block 19, the limit block 17 moves downwards to the bottom of the movable block 18, under No. four spring 20's effect, movable block 18 is rebounded, fixes stopper 17, prevents box 7 rebound upwards and jolts repeatedly, causes the secondary injury to the person of taking under the reaction of No. two spring 13 and No. three spring 16, box 7.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An elevator car with buffer function, includes base (1), its characterized in that: the top of the base (1) is fixedly connected with a threaded rod (2), the outer part of the threaded rod (2) is movably sleeved with a sliding block (3), the inner cavity of the sliding block (3) is movably connected with a friction block (4), the inner cavity of the friction block (4) is movably sleeved with an inserted link (5), the side surface of the sliding block (3) is fixedly connected with a box body (7), and the top of the inner cavity of the box body (7) is fixedly connected with a pulley (10);

the utility model discloses a support rod, including base (1), bracing piece (12) have been cup jointed in the top activity that base (1) is located threaded rod (2) side, No. two spring (13) have been cup jointed in the outside activity of bracing piece (12), top fixedly connected with backup pad (14) of bracing piece (12), movable rod (15) have been cup jointed in the top activity of backup pad (14), side fixedly connected with stopper (17) that box (7) are located slider (3) bottom, base (1) is located top fixedly connected with fixed block (19) of bracing piece (12) side, movable block (18) have been cup jointed in the inner chamber activity of fixed block (19).

2. An elevator car with a buffer function as claimed in claim 1, characterized in that: the side face of the friction block (4) is fixedly connected with a first spring (6), and one side of the first spring (6) is fixedly connected with one side of the inner wall of the sliding block (3).

3. An elevator car with a buffer function as claimed in claim 1, characterized in that: the outer portion of the pulley (10) is movably sleeved with a steel wire rope (8), the bottom of the steel wire rope (8) is fixedly connected with a handle (11), and one end of the steel wire rope (8) is fixedly connected with one side of the inserted rod (5).

4. An elevator car with a buffer function as claimed in claim 3, characterized in that: the inner cavity of the box body (7) at the bottom of the pulley (10) is fixedly connected with a top plate (9), and the side face of the steel wire rope (8) penetrates through the top of the top plate (9).

5. An elevator car with a buffer function as claimed in claim 1, characterized in that: a third spring (16) is sleeved outside the movable rod (15) in a movable mode, and a bottom plate (21) is fixedly connected to the top of the movable rod (15).

6. An elevator car with a buffer function as claimed in claim 1, characterized in that: a fourth spring (20) is arranged in the inner cavity of the fixed block (19), and the inner wall of the fixed block (19) and the side face of the movable block (18) are fixedly connected with the two sides of the fourth spring (20).