CN213923646U

CN213923646U - Elevator car buffer

Info

Publication number: CN213923646U
Application number: CN202021791902.9U
Authority: CN
Inventors: 蔡盛华
Original assignee: Convergence Intelligent Equipment Zhongshan Co ltd
Current assignee: Convergence Intelligent Equipment Zhongshan Co ltd
Priority date: 2020-08-25
Filing date: 2020-08-25
Publication date: 2021-08-10
Anticipated expiration: 2030-08-25

Abstract

The utility model discloses an elevator car buffer relates to buffer technical field. The utility model discloses a structure includes bottom plate, spring, buffer board, No. two springs, fixed axle, folding rod, the bottom plate sets up in the car, be fixed with a plurality of bracing pieces on the lateral wall of car inner bottom, the bottom plate is taken on the bracing piece to with the top spiro union of bracing piece, a spring has a plurality ofly and fixes on the lateral wall of car inner bottom, the buffer board sets up in the elevator shaft bottom, No. two springs have a plurality ofly and fix on the lateral wall at the bottom of the elevartor shaft, the top of No. two springs is fixed on the lateral wall at the bottom of the buffer board, the fixed axle sets up in the buffer board below, the fixed axle cover has two pipe casings, the both ends of folding rod are articulated with the top lateral wall of two pipe casings respectively, the middle articulated shaft of folding rod is articulated with the lateral wall at the bottom of buffer board. The utility model discloses have multiple buffering, and consume the elasticity of spring to prevent that the passenger from receiving striking repeatedly.

Description

Elevator car buffer

Technical Field

The utility model relates to a buffer technical field especially relates to an elevator car buffer.

Background

An elevator is a permanent transport device serving a number of specific floors in a building, the cars of which travel in at least two rigid tracks perpendicular to the horizontal or inclined at an angle of less than 15 ° to the vertical. The elevator adopts the stay cord to pull the removal from top to bottom, in case the stay cord fracture, elevator car can slide down rapidly, makes the passenger injury or even drop out of life. To provide for these hazards, the prior art has designed an elevator car buffer that typically includes a buffer spring at the bottom of the hoistway to dissipate the force of the impact. However, the safety performance of the elevator is still not high because only the buffer spring is arranged in the elevator shaft, and passengers in the elevator cage are still injured by the collision.

Accordingly, one skilled in the art provides an elevator car buffering device to solve the problems set forth in the background above.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that the safety performance of the elevator car buffer device of the prior art is overcome to remain to be improved.

In order to solve the technical problem, the utility model provides an elevator car buffer device, which comprises,

the first buffer mechanism structurally comprises a bottom plate, the bottom plate is of a rectangular plate-shaped structure and is arranged in a lift car, a plurality of support rods are fixed on the side wall of the inner bottom of the lift car, the bottom plate is lapped on the support rods and is in threaded connection with the top ends of the support rods, passengers stand on the bottom plate, and when the lift car impacts the bottom of the lift well, the support rods are broken due to stress, so that the bottom plate moves downwards due to impact force; the first springs are fixed on the side wall of the inner bottom of the lift car, the bottom plate presses the first springs when moving downwards, and the first springs are compressed to buffer passengers on the bottom plate;

the buffer mechanism structure comprises a buffer plate, the buffer plate is of a rectangular plate structure and is arranged at the bottom of the elevator shaft, and when the elevator car impacts the buffer plate, the buffer plate bounces up and down to buffer the elevator car; the second springs are provided with a plurality of springs and fixed on the bottom side wall of the elevator shaft, the top ends of the second springs are fixed on the bottom side wall of the buffer plate, and the second springs have elasticity so that the buffer plate can bounce up and down;

the force eliminating mechanism structurally comprises a fixed shaft, wherein the fixed shaft is of a cylindrical rod-shaped structure, is arranged below the buffer plate, and is fixedly connected with the left side wall and the right side wall of the elevator shaft at the left end and the right end respectively; the folding rod is of a two-hinged-rod-shaped structure, two ends of the folding rod are hinged to the top side walls of the two pipe sleeves respectively, a middle hinged shaft of the folding rod is hinged to the bottom side wall of the buffer plate, the folding rod is bent inwards or outwards in the up-and-down moving process of the buffer plate to push the pipe sleeves to move left and right on the fixed shaft, and friction force generated when the pipe sleeves move relative to the fixed shaft consumes the elastic force of part of the second spring.

As a further aspect of the present invention: a layer of rubber sleeve is arranged on the inner side wall of the pipe hole of the pipe sleeve, and the rubber sleeve increases the friction force between the pipe sleeve and the fixed shaft.

As a further aspect of the present invention: the inner side wall of the hole of the rubber sleeve is provided with a plurality of protruding burrs, the moving direction of the pipe sleeve is inclined when the end between the burrs moves downwards to the buffer plate, the pipe sleeve moves reversely when the buffer plate rises, and the burrs provide resistance for the pipe sleeve to move reversely.

As a further aspect of the present invention: the car buffer structure is characterized in that a layer of rubber plate is fixed on the top side wall of the buffer plate, and the rubber plate plays a role in buffering between the buffer plate and the car.

As a further aspect of the present invention: the bracing piece is dumbbell-shaped structure, the top dish and the chassis of bracing piece are fixed connection at the bottom of bottom plate and the car respectively, prevent that the bottom plate does not have the bracing piece region recessed.

As a further aspect of the present invention: the car and elevator shaft guide rail is provided with a third buffer mechanism, the third buffer mechanism comprises a mounting plate, the mounting plate is of a rectangular plate-shaped structure, the mounting plate is fixed on the outer side wall of the car, a sliding block is fixed on the mounting plate, and the sliding block slides up and down in the guide rail; the motor, the motor has two to fix respectively on the lateral wall around the mounting panel, the rotor bottom mounting of motor has a power shaft, be fixed with splint on the power shaft, when the car tenesmus, motor drive power shaft drives splint and rotates, makes splint and guide rail outer wall hug closely, produces ascending frictional force between splint and guide rail, consumes the power of part orientation.

As a further aspect of the present invention: the surface of the clamping plate, which is in contact with the guide rail, is provided with anti-slip lines, and the anti-slip lines increase the friction force between the clamping plate and the guide rail.

The utility model has the advantages that:

(1) the utility model discloses a buffer gear and No. two buffer gear, when the car fell to the elevator shaft bottom, the car hit the buffer board, and No. two spring presses repeated compression bounce, drive the buffer board and move repeatedly from top to bottom, make the car move repeatedly from top to bottom, buffer the impact of car; when the impact force supporting rod after the first buffering of the second spring cannot support, the supporting rod is broken to enable the bottom plate to downwards impact the first spring, the first spring repeatedly bounces to drive the bottom plate to repeatedly move up and down, and the impact force of passengers on the bottom plate and the bottom plate is buffered. The utility model discloses multiple buffering has.

(2) The utility model discloses set up the power mechanism that disappears, at the in-process that the buffer board reciprocated, the buffer board drives the folding rod and opens or merges, and the folding rod drives the pipe box and relapses horizontal slip on the fixed axle, and the removal produces frictional force between pipe box and fixed axle, the elasticity of the No. two springs of frictional force consumption part. The utility model consumes the elasticity of the spring to prevent the passenger from being impacted repeatedly.

Drawings

Fig. 1 is a front view of the present invention;

FIG. 2 is a top view of a third buffer mechanism;

fig. 3 is a cross-sectional view of a pipe sleeve.

Wherein: the elevator comprises a car 10, an elevator shaft 11, a guide rail 12, a mounting plate 13, a sliding block 14, a motor 15, a clamping plate 16, anti-skid threads 17, a bottom plate 18, a support rod 19, a first spring 20, a buffer plate 21, a rubber plate 22, a second spring 23, a fixed shaft 24, a pipe sleeve 25, a rubber sleeve 26, burrs 27 and a folding rod 28.

Detailed Description

The structure of the elevator car buffer device provided by the embodiment is shown in fig. 1-3, and comprises,

the first buffer mechanism structurally comprises a bottom plate 18, wherein the bottom plate 18 is of a rectangular plate structure, the bottom plate 18 is arranged in a car 10, a plurality of support rods 19 are fixed on the side wall of the inner bottom of the car 10, the bottom plate 18 is lapped on the support rods 19 and is in threaded connection with the top ends of the support rods 19, passengers stand on the bottom plate 18, and when the car 10 impacts the bottom of an elevator shaft, the support rods 19 are crushed by force, so that the bottom plate 18 moves downwards due to impact force; a first spring 20, wherein the first spring 20 is provided with a plurality of springs and is fixed on the inner bottom side wall of the car 10, the bottom plate 18 presses the first spring 20 when moving downwards, and the first spring 20 is compressed to buffer passengers on the bottom plate 18;

the second buffer mechanism structurally comprises a buffer plate 21, wherein the buffer plate 21 is of a rectangular plate-shaped structure, the buffer plate 21 is arranged at the bottom of the elevator shaft 11, and when the elevator car 10 impacts the buffer plate 21, the buffer plate 21 bounces up and down to buffer the elevator car 10; a plurality of second springs 23, wherein the second springs 23 are fixed on the bottom side wall of the elevator shaft 11, the top ends of the second springs 23 are fixed on the bottom side wall of the buffer plate 21, and the second springs 23 have elasticity, so that the buffer plate 21 can bounce up and down;

the force eliminating mechanism structurally comprises a fixing shaft 24, wherein the fixing shaft 24 is of a cylindrical rod-shaped structure, the fixing shaft 24 is arranged below the buffer plate 21, the left end and the right end of the fixing shaft are fixedly connected with the left side wall and the right side wall of the elevator shaft 11 respectively, two pipe sleeves 25 are sleeved on the fixing shaft 24, and the inner pipe walls of the pipe sleeves 25 are attached to the outer walls of the fixing shaft 24; the folding rods 28 are in two hinged rod-shaped structures, two ends of each folding rod 28 are hinged to top side walls of the two pipe sleeves 25, a middle hinge shaft of each folding rod 28 is hinged to a bottom side wall of the buffer plate 21, the folding rods 28 are bent inwards or outwards in the up-and-down moving process of the buffer plate 21 to push the pipe sleeves 25 to move left and right on the fixed shaft 24, and friction force generated when the pipe sleeves 25 move relative to the fixed shaft 24 consumes part of elastic force of the second springs 23.

A layer of rubber sleeve 26 is arranged on the inner side wall of the pipe hole of the pipe sleeve 25, and the rubber sleeve 26 increases the friction force between the pipe sleeve 25 and the fixed shaft 24.

The inner side wall of the hole of the rubber sleeve 26 is provided with a plurality of protruding burrs 27, the moving direction of the pipe sleeve 25 is inclined when the end between the burrs 27 moves downwards towards the buffer plate 21, the pipe sleeve 25 moves reversely when the buffer plate 21 rises, and the burrs 27 provide resistance for the pipe sleeve 25 to move reversely.

A layer of rubber plate 22 is fixed on the top side wall of the buffer plate 21, and the rubber plate 22 plays a role in buffering between the buffer plate 21 and the car 10.

The support rod 19 is of a dumbbell-shaped structure, and the top plate and the bottom plate of the support rod 19 are fixedly connected with the bottom of the bottom plate 18 and the bottom of the car 10 respectively, so that the region of the bottom plate 18 without the support rod 19 is prevented from sinking.

A third buffer mechanism is arranged at guide rails 12 of the car 10 and the elevator shaft 11, and comprises a mounting plate 13, wherein the mounting plate 13 is of a rectangular plate-shaped structure, the mounting plate 13 is fixed on the outer side wall of the car 10, a sliding block 14 is fixed on the mounting plate 13, and the sliding block 14 slides up and down in the guide rails 12; motor 15, motor 15 have two to fix respectively on the front and back lateral wall of mounting panel 13, motor 15's rotor bottom mounting has a power shaft, be fixed with splint 16 on the power shaft, when the car tenesmus, motor 15 drive power shaft drives splint 16 and rotates, makes splint 16 and guide rail 12 outer wall hug closely, produces ascending frictional force between splint 16 and guide rail 12, consumes the power of part orientation.

The surface of the clamping plate 16, which is contacted with the guide rail 12, is provided with anti-slip lines 17, and the anti-slip lines 17 increase the friction force between the clamping plate 16 and the guide rail 12.

The utility model discloses a theory of operation: when the lift car 10 drops to the bottom of the elevator shaft 11, the lift car 10 collides with the buffer plate 21, the second spring 23 is pressed to repeatedly compress and bounce to drive the buffer plate 21 to repeatedly move up and down, so that the lift car 10 repeatedly moves up and down to buffer the impact force of the lift car 10; when the impact force support rod 19 after the first buffering of the second spring 23 cannot support, the support rod 19 is broken to enable the bottom plate 18 to impact the first spring 20 downwards, the first spring 20 repeatedly bounces to drive the bottom plate 18 to repeatedly move up and down, and the impact force of passengers on the bottom plate 18 and the bottom plate 18 is buffered; in the process of moving the buffer plate 21 up and down, the buffer plate 21 drives the folding rods 28 to open or close, the folding rods 28 drive the pipe sleeves 25 to repeatedly slide left and right on the fixed shaft 24, the pipe sleeves 25 move with the fixed shaft 24 to generate friction force, and the friction force consumes part of the elastic force of the second spring 23. The utility model discloses have multiple buffering, and consume the elasticity of spring to prevent that the passenger from receiving striking repeatedly.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. An elevator car buffer, characterized in that it comprises,

the first buffer mechanism structurally comprises a bottom plate (18), wherein the bottom plate (18) is of a rectangular plate-shaped structure, the bottom plate (18) is arranged in a car (10), a plurality of support rods (19) are fixed on the side wall of the inner bottom of the car (10), the bottom plate (18) is lapped on the support rods (19) and is in threaded connection with the top ends of the support rods (19), a passenger stands on the bottom plate (18), and when the car (10) impacts the bottom of an elevator shaft, the support rods (19) are broken due to force, so that the bottom plate (18) moves downwards due to impact force; the first spring (20), the first spring (20) has a plurality of and fixes on the inner bottom lateral wall of the car (10), the bottom plate (18) presses on the first spring (20) when moving downwards, the first spring (20) compresses, play a role in buffering passengers on the bottom plate (18);

the second buffer mechanism structurally comprises a buffer plate (21), wherein the buffer plate (21) is of a rectangular plate-shaped structure, the buffer plate (21) is arranged at the bottom of the elevator shaft (11), and when the elevator car (10) impacts the buffer plate (21), the buffer plate (21) bounces up and down to buffer the elevator car (10); the second springs (23) are provided with a plurality of springs (23) and fixed on the bottom side wall of the elevator shaft (11), the top ends of the second springs (23) are fixed on the bottom side wall of the buffer plate (21), and the second springs (23) have elasticity, so that the buffer plate (21) can bounce up and down;

the force eliminating mechanism structurally comprises a fixing shaft (24), wherein the fixing shaft (24) is of a cylindrical rod-shaped structure, the fixing shaft (24) is arranged below the buffer plate (21), the left end and the right end of the fixing shaft are fixedly connected with the left side wall and the right side wall of the elevator shaft (11) respectively, two pipe sleeves (25) are sleeved on the fixing shaft (24), and the inner pipe walls of the pipe sleeves (25) are attached to the outer wall of the fixing shaft (24); the folding rod (28) is of two hinged rod-shaped structures, two ends of the folding rod (28) are hinged to top side walls of the two pipe sleeves (25) respectively, a middle hinge shaft of the folding rod (28) is hinged to a bottom side wall of the buffer plate (21), the folding rod (28) bends inwards or outwards in the up-and-down moving process of the buffer plate (21), the pipe sleeves (25) are pushed to move left and right on the fixed shaft (24), and friction force generated when the pipe sleeves (25) move relative to the fixed shaft (24) consumes the elastic force of the second spring (23).

2. An elevator car buffering device as defined in claim 1, wherein: a layer of rubber sleeve (26) is arranged on the inner side wall of the pipe hole of the pipe sleeve (25), and the rubber sleeve (26) increases the friction force between the pipe sleeve (25) and the fixed shaft (24).

3. An elevator car buffering device as defined in claim 2, wherein: the rubber sleeve is characterized in that a plurality of protruding burrs (27) are arranged on the inner side wall of the hole of the rubber sleeve (26), the moving direction of the pipe sleeve (25) inclines when the end of each burr (27) moves downwards to the buffer plate (21), the pipe sleeve (25) moves reversely when the buffer plate (21) rises, and the burrs (27) give resistance to the reverse movement of the pipe sleeve (25).

4. An elevator car buffering device as defined in claim 1, wherein: a layer of rubber plate (22) is fixed on the top side wall of the buffer plate (21), and the rubber plate (22) plays a role in buffering between the buffer plate (21) and the car (10).

5. An elevator car buffering device as defined in claim 1, wherein: the support rod (19) is of a dumbbell-shaped structure, a top plate and a bottom plate of the support rod (19) are fixedly connected with the bottom of the bottom plate (18) and the bottom of the car (10) respectively, and the bottom plate (18) is prevented from being recessed in the area without the support rod (19).