CN216971649U

CN216971649U - Elevator safety clamp assembly

Info

Publication number: CN216971649U
Application number: CN202123239197.9U
Authority: CN
Inventors: 陈林杰
Original assignee: Fujitsu Guangdong Elevator Industry Group Co ltd
Current assignee: Fujitsu Guangdong Elevator Industry Group Co ltd
Priority date: 2021-12-22
Filing date: 2021-12-22
Publication date: 2022-07-15
Anticipated expiration: 2031-12-22

Abstract

The utility model relates to the technical field of elevator safety, and discloses an elevator safety tong assembly which comprises a bracket, wherein a motor is connected above the bracket, one end of the motor is connected with a screw rod, the outer side of the screw rod is connected with a ball nut, the outer side of the ball nut is connected with a lifting plate, and the left side and the right side of the inner part of the lifting plate are respectively connected with a first clamping wedge block and a second clamping wedge block. The upper clamping wedge block is easy to deform and bend, and the normal use is influenced.

Description

Elevator safety clamp assembly

Technical Field

The utility model relates to the technical field of elevator safety, in particular to an elevator safety clamp assembly.

Background

The overspeed governor safety gear system is the essential safety device of elevator, and when the elevator was overspeed, the operation was out of control or the linkage broke, the overspeed governor safety gear device stopped elevator car on the guide rail rapidly to keep quiescent condition, thereby avoid taking place casualties and equipment damage accident.

Chinese patent discloses an elevator safety clamp assembly (No. CN211283319U), in which a lower clamping wedge block is arranged at the bottom of a bracket, one surface of the lower clamping wedge block, which faces upwards to the upper clamping wedge block, is a main inclined surface, an upper clamping wedge block moves up and down under the guidance of the lower clamping wedge block, a guide ball is arranged between the two inclined surfaces, in order to ensure that the upper clamping wedge block moves stably relative to the lower clamping wedge block, namely, the two inclined surfaces are always kept in a parallel state in the moving process of the upper clamping wedge block so as to ensure that the clearance of the safety clamp at the two sides of a guide rail is uniform, the main inclined surface of the lower clamping wedge block is provided with a guide groove, the guide ball is partially accommodated in the guide groove, the guide ball rolls in one direction under the restriction of the guide groove, and a plurality of the guide balls are kept on the same straight line, but when the upper clamping wedge block applies pressure to the lower clamping wedge block, the upper clamping wedge block is lack of a stable structure, the upper clamping wedge block is easy to deform and bend, and normal use is affected.

SUMMERY OF THE UTILITY MODEL

The object of the present invention is to provide an elevator safety tong assembly to solve the problems set forth in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme:

an elevator safety gear assembly comprises a support, wherein a group of grooves are correspondingly formed in the upper end and the lower end of the support, a through hole is formed in the top end of the support, a motor is connected to a position, close to the through hole, above the support, a lead screw is connected to one end of an output shaft inside the motor, a bearing seat is connected to one end of the lead screw, a ball nut is connected to the outer side of the lead screw, a lifting plate is connected to the outer side of the ball nut, a group of second sliding grooves are correspondingly formed in the left side and the right side inside the lifting plate, a first clamping wedge block and a second clamping wedge block are respectively connected to the inside of the group of second sliding grooves, second sliding blocks connected to the inside of the group of second sliding grooves are respectively arranged on the outer sides of the first clamping wedge block and the second clamping wedge block, and first sliding blocks are respectively connected to positions, far away from the second sliding blocks, on the outer sides of the first clamping wedge block and the second clamping wedge block, the outside of first slider is connected with the mount pad, the first spout of connection in the first slider outside is seted up to the inside of mount pad, mount pad and support fixed connection.

As a still further scheme of the utility model: third chutes are formed in the outer sides of the first clamping wedge block and the second clamping wedge block, a third sliding block is connected to the inner portion of each third chute, and a damping layer is connected to the outer side of each third sliding block.

As a still further scheme of the utility model: the motor is electrically connected with an external controller through a circuit.

As a still further scheme of the utility model: the first clamping wedge block, the second clamping wedge block and the mounting seat are connected with each other in a sliding mode through a first sliding block and a first sliding groove, and the first clamping wedge block, the second clamping wedge block and the lifting plate are connected with each other in a sliding mode through a second sliding block and a second sliding groove.

As a still further scheme of the utility model: the position of the groove corresponds to the position of the damping layer.

As a still further scheme of the utility model: and the damping layer is in sliding connection with the first clamping wedge block through a third sliding block and a third sliding groove.

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

1. set up the motor, the lifter plate, first clamp voussoir and second clamp voussoir, open the motor, it is rotatory to drive the lead screw, and then drive ball nut and lifter plate and rise, and then drive a set of second slider and rise, and then drive first clamp voussoir and second clamp voussoir and rise, thereby reduce the interval between first clamp voussoir and the second clamp voussoir, the realization is fixed to the clamp of first clamp voussoir and the inboard elevator guide rail of second clamp voussoir, under the limiting displacement of both sides mount pad, the stability of first clamp voussoir and second clamp voussoir has been improved greatly, solved because last clamp voussoir self lacks stable structure, lead to the clamp voussoir to appear warping easily, influence the problem of normal use.

2. Set up third slider and third spout, under the connection effect of third slider and third spout, be convenient for take off the damping layer from the outside of first tight voussoir of clamp and the tight voussoir of second clamp and change, increased the practicality.

Drawings

Fig. 1 is a schematic structural view of an elevator safety jaw assembly;

fig. 2 is a side cross-sectional view of an elevator safety tong assembly;

fig. 3 is a side cross-sectional view of a third slide and a third runner in an elevator safety jaw assembly.

In the figure: 1. a motor; 2. a support; 3. a groove; 4. a mounting base; 5. a damping layer; 6. a first clamping wedge; 7. a first chute; 8. a second chute; 9. a lifting plate; 10. a second clamping wedge; 11. a first slider; 12. a through hole; 13. a screw rod; 14. a second slider; 15. a ball nut; 16. a bearing seat; 17. a third slider; 18. and a third chute.

Detailed Description

Referring to fig. 1 to 3, in the embodiment of the utility model, an elevator safety gear assembly comprises a bracket 2, a set of grooves 3 are correspondingly formed at the upper end and the lower end of the bracket 2, a through hole 12 is formed at the top end of the bracket 2, a motor 1 is connected above the bracket 2 at a position close to the through hole 12, one end of an output shaft inside the motor 1 is connected with a screw rod 13, one end of the screw rod 13 is connected with a bearing seat 16, a ball nut 15 is connected to the outer side of the screw rod 13, a lifting plate 9 is connected to the outer side of the ball nut 15, a set of second sliding grooves 8 are correspondingly formed at the left side and the right side inside the lifting plate 9, a first clamping wedge 6 and a second clamping wedge 10 are respectively connected inside the set of second sliding grooves 8, second sliding blocks 14 connected inside the set of second sliding grooves 8 are respectively arranged at the outer sides of the first clamping wedge 6 and the second clamping wedge 10, first sliding blocks 11 are respectively connected at positions far away from the second sliding blocks 14, the outside of first slider 11 is connected with mount pad 4, and the first spout 7 of connection in the outside of first slider 11 is seted up to the inside of mount pad 4, mount pad 4 and support 2 fixed connection.

In fig. 1 and 3: third spout 18 has all been seted up in the outside of first tight voussoir 6 of clamp and the tight voussoir 10 of second, and the internal connection of third spout 18 has third slider 17, and the outside of third slider 17 is connected with damping layer 5, under damping layer 5's effect, is favorable to increasing the frictional force between first tight voussoir 6 of clamp, the tight voussoir 10 of second clamp and the elevator guide rail, increases connection stability.

In fig. 1 and 2: motor 1 passes through circuit and external control ware electric connection, start motor 1, it is rotatory to drive lead screw 13, and then drive ball nut 15 and lifter plate 9 and rise, and then drive a set of second slider 14 and rise, and then drive first clamp voussoir 6 and the tight voussoir 10 of second clamp and rise, thereby reduce the interval between first clamp voussoir 6 and the tight voussoir 10 of second clamp, the realization is fixed the clamp of the tight inboard elevator guide rail of first clamp voussoir 6 and the tight voussoir 10 of second clamp, under the limiting displacement of both sides mount pad 4, the stability of the tight voussoir 10 of first clamp voussoir 6 and second clamp has been improved greatly.

In fig. 1 and 2: first tight voussoir 6 of clamp, second clamp tight voussoir 10 and mount pad 4 all through first slider 11 and first spout 7 sliding connection, first tight voussoir 6 of clamp, second clamp tight voussoir 10 and lifter plate 9 all through

second slider

14 and 8 sliding connection of second spout, when first tight voussoir 6 of clamp, second clamp tight voussoir 10 lifting, drive first slider 11 and upwards slide simultaneously along the inside of first spout 7, drive second slider 14 and slide in opposite directions along the inside of second spout 8.

In fig. 1: the position of the groove 3 corresponds to the position of the damping layer 5, so that the damping layer 5 can limit the elevator guide rail on the inner side of the groove 3 in time.

In fig. 1 and 3: damping layer 5 passes through third slider 17 and third spout 18 sliding connection with first clamp voussoir 6, under the connection effect of third slider 17 and third spout 18, is convenient for take off damping layer 5 from the outside of first clamp voussoir 6 and the tight voussoir 10 of second clamp and change, has increased the practicality.

The working principle of the utility model is as follows: the motor 1 is started, the screw rod 13 is driven to rotate, the ball nut 15 and the lifting plate 9 are driven to ascend, the second sliding block 14 is driven to ascend, the first clamping wedge block 6 and the second clamping wedge block 10 are driven to ascend, the distance between the first clamping wedge block 6 and the second clamping wedge block 10 is reduced, the first clamping wedge block 6 and the second clamping wedge block 10 are clamped and fixed through the elevator guide rail inside the first clamping wedge block 6 and the second clamping wedge block 10, the stability of the first clamping wedge block 6 and the second clamping wedge block 10 is greatly improved under the limiting effect of the mounting seats 4 on the two sides, the damping layer 5 can be conveniently taken down from the outer sides of the first clamping wedge block 6 and the second clamping wedge block 10 and replaced under the connecting effect of the third sliding block 17 and the third sliding groove 18, and the practicability is improved.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the scope of the present invention, and the technical solutions and the utility model concepts of the present invention are equivalent to or changed within the scope of the present invention.

Claims

1. The elevator safety tongs assembly comprises a support (2), a set of grooves (3) are correspondingly formed in the upper end and the lower end of the support (2), and is characterized in that a through hole (12) is formed in the top end of the support (2), a motor (1) is connected to the position, close to the through hole (12), of the top of the support (2), a lead screw (13) is connected to one end of an output shaft inside the motor (1), a bearing seat (16) is connected to one end of the lead screw (13), a ball nut (15) is connected to the outer side of the lead screw (13), a lifting plate (9) is connected to the outer side of the ball nut (15), a set of second sliding grooves (8) are correspondingly formed in the left side and the right side of the inside of the lifting plate (9), a set of first clamping wedge block (6) and a second clamping wedge block (10) are connected to the inner side of the second sliding grooves (8), and the first clamping wedge block (6) and the second clamping wedge block (10) are connected to the outer side of the set of the second clamping wedge block (10) The inside second slider (14) of spout (8), the position that second slider (14) were kept away from in the outside of first clamp wedge (6) and second clamp wedge (10) all is connected with first slider (11), the outside of first slider (11) is connected with mount pad (4), first spout (7) of connection in the first slider (11) outside are seted up to the inside of mount pad (4), mount pad (4) and support (2) fixed connection.

2. The elevator safety tong assembly according to claim 1, characterized in that a third sliding groove (18) is formed in each of the outer sides of the first clamping wedge (6) and the second clamping wedge (10), a third sliding block (17) is connected to the inside of the third sliding groove (18), and a damping layer (5) is connected to the outer side of the third sliding block (17).

3. An elevator safety jaw assembly according to claim 1, characterized in that the motor (1) is electrically connected to an external controller via an electric circuit.

4. An elevator safety tong assembly as defined in claim 1, wherein the first clamping wedge (6), the second clamping wedge (10) and the mounting block (4) are slidably connected by a first slide block (11) and a first slide slot (7), and the first clamping wedge (6), the second clamping wedge (10) and the lifting plate (9) are slidably connected by a second slide block (14) and a second slide slot (8).

5. An elevator safety jaw assembly according to claim 1, characterized in that the position of the groove (3) corresponds to the position of the damping layer (5).

6. An elevator safety jaw assembly according to claim 2, characterized in that the damping layer (5) is slidably connected to the first clamping wedge (6) by means of a third slide (17) and a third slide groove (18).