CN213505471U

CN213505471U - Progressive elevator safety tongs with excellent buffering capacity

Info

Publication number: CN213505471U
Application number: CN202022093622.7U
Authority: CN
Inventors: 朱朝平
Original assignee: Zhenjiang Chaoyang Electromechanical Technology Co ltd
Current assignee: Zhenjiang Chaoyang Electromechanical Technology Co ltd
Priority date: 2020-09-22
Filing date: 2020-09-22
Publication date: 2021-06-22
Anticipated expiration: 2030-09-22

Abstract

The utility model discloses a progressive elevator safety tongs with excellent buffering capacity, which comprises a fixing seat and a fixing plate fixedly arranged at the upper end of the fixing seat, wherein a pull rod is arranged in the middle of the fixing seat and the fixing plate in a penetrating manner; the utility model discloses a buffer function in advance when atress board and voussoir collide prevents that the atress board from leading to it to take place unnecessary wearing and tearing when the live time is longer to lead to its security performance to receive adverse effect.

Description

Progressive elevator safety tongs with excellent buffering capacity

Technical Field

The utility model relates to an elevator safety tongs technical field especially relates to a progressive elevator safety tongs that buffer capacity is good.

Background

Safety tongs are the safety arrangement of elevator. The elevator safety gear device is a safety device which emergently stops a car and clamps the car on a guide rail under the operation of a speed limiter when the speed of an elevator exceeds the set limit speed of the speed limiter of the elevator or in the case of breakage and looseness of a suspension rope. The elevator safety protection device provides effective protection effect for the safe operation of the elevator, and is generally arranged on a car frame or a counterweight frame;

the existing elevator safety tongs are used, the stress plate of the elevator safety tongs often directly impacts the wedge block, the wedge block is pushed to move, and the stress plate is limited by the guide rail, the elevator is enabled to stop slowly, but the stress plate impacts the wedge block, the force is very large, no buffer exists, a worker is required to overhaul the stress plate after each use, the process is very complicated, the service life of the stress plate is prolonged, the stress plate is damaged locally even when the force is too large, safety accidents are caused, and accordingly the progressive elevator safety tongs with excellent buffer capacity are provided.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a progressive elevator safety tongs that buffer capacity is good has realized the buffer function in advance when atress board and voussoir collide, prevents that the atress board from leading to it to take place unnecessary wearing and tearing when the live time is longer to lead to its security performance to receive adverse effect.

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

the utility model provides a progressive elevator safety tongs that buffer capacity is good, includes fixing base and the fixed plate of fixed setting in the fixing base upper end, fixing base and fixed plate mid portion run through and are equipped with the pull rod, the fixed two dead levers that are equipped with of lower extreme of fixed plate, two the dead lever is the slope setting, and two the dead lever sets up back to the back mutually, two the fixed guide rail that is equipped with on the adjacent lateral wall of one side of dead lever, the back lateral wall department of guide rail is equipped with buffer spring, two be equipped with two voussoirs, two in the middle of the guide rail the upper end of voussoir all is fixed and is equipped with the trip lever, the upper end of trip lever runs through the fixed plate setting, the fixed atress board that is equipped with in lower extreme department of pull rod, the atress board is close.

The utility model discloses the technical scheme who further injects is:

preferably, the clamping buffer mechanism comprises a cavity arranged at the lower ends of the two wedge blocks, a transverse plate is arranged in the cavity in a sliding manner, a connecting rod is fixedly arranged at the lower end of the transverse plate and extends out of the cavity, and the lower end of the connecting rod is fixedly provided with a resisting plate which is arranged close to the stress plate, and the joint of the resisting plate and the stress plate is fixedly provided with a strong magnet, a limit ring is fixedly arranged on the side wall of the connecting rod, a matched limit block is fixedly arranged on the side wall of the cavity, the spacing ring sets up in the top of stopper, the upper wall symmetry of diaphragm is equipped with two spouts, two equal slip is equipped with two sliders, two in the spout all fixed powerful spring that is equipped with, two between the lateral wall of slider and spout all fixed arc kelly that is equipped with on the slider, the cavity internal fixation be equipped with arc kelly assorted joint pole.

Preferably, the connecting rod, the abutting plate and the limiting ring are all integrally formed.

Preferably, the arc-shaped clamping rod is fixedly provided with a spherical sliding block at one end far away from the transverse plate, and the spherical sliding block and the clamping rod are correspondingly arranged.

Preferably, the stress plate and the pull rod are integrally formed, and protective paint is coated on the surfaces of the stress plate and the pull rod.

The utility model has the advantages that:

the utility model discloses a mutually supporting of joint buffer gear and atress board for safety tongs during operation, the atress board promotes the board at first, thereby makes two arc kellies and joint pole joint each other, and stimulates strong spring in the process, through the extension of strong spring, the effectual process of striking the voussoir to the atress board cushions, prevents that both from directly taking place the brute force collision, leads to the life of atress board and voussoir to subtract short, and many times strong striking makes its emergence damage easily, thereby causes great incident; through powerful magnet, mutually supporting of spacing ring and stopper, make the device when reseing, the atress board moves down, make to remove thereupon the board under powerful magnet's effect, thereby make arc kelly and joint pole break away from, when the spacing ring card was located at the stopper, the atress board continues to move, strong magnet on support board and the atress board drops, thereby prepare next buffering, make the device can be timely reset, and mechanical loss can not take place for the in-process, the service life of device has been increased.

Drawings

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

FIG. 2 is a schematic view of the structure at A in FIG. 1;

in the figure: the device comprises a fixed seat 1, a fixed plate 2, a pull rod 3, a fixed rod 4, a guide rail 5, a buffer spring 6, a stress plate 7, a wedge block 8, a trip rod 9, a cavity 10, a transverse plate 11, a connecting rod 12, a resisting plate 13, a limiting ring 14, a limiting block 15, a strong magnet 16, a sliding groove 17, a sliding block 18, a strong spring 19, an arc clamping rod 20, a spherical sliding block 21 and a clamping rod 22.

Detailed Description

The progressive elevator safety gear with excellent buffering capacity provided by the embodiment has a structure shown in fig. 1-2, and comprises a fixing seat 1 and a fixing plate 2 fixedly arranged at the upper end of the fixing seat 1, wherein a pull rod 3 penetrates through the middle part of the fixing seat 1 and the fixing plate 2, two fixing rods 4 are fixedly arranged at the lower end of the fixing plate 2, both the two fixing rods 4 are obliquely arranged, the two fixing rods 4 are arranged in a reverse manner, a guide rail 5 is fixedly arranged on the side wall of one side adjacent to the two fixing rods 4, a buffer spring 6 is arranged at the rear side wall of the guide rail 5, two wedge blocks 8 are arranged between the two guide rails 5, a trip rod 9 is fixedly arranged at the upper end of each wedge block 8, the upper end of the trip rod 9 penetrates through the fixing plate 2, a stress plate 7 is fixedly arranged at the lower end of the pull rod 3, the stress plate 7 and the pull rod 3 are integrally formed, and, the stability of the structure of the wedge-shaped steel plate is improved, the surface of the wedge-shaped steel plate is prevented from being oxidized and rusted, the stress plate 7 is arranged close to the two wedge blocks 8, a clamping buffer mechanism is arranged between the stress plate 7 and the two wedge blocks 8 and comprises a cavity 10 arranged at the lower ends of the two wedge blocks 8, a transverse plate 11 is arranged in the cavity 10 in a sliding manner, a connecting rod 12 is fixedly arranged at the lower end of the transverse plate 11, the connecting rod 12 extends out of the cavity 10, a resisting plate 13 is fixedly arranged at the lower end of the connecting rod 12, the resisting plate 13 is arranged close to the stress plate 7, strong magnets 16 are fixedly arranged at the joint of the resisting plate 13 and the stress plate 7, a limiting ring 14 is fixedly arranged on the side wall of the connecting rod 12, the resisting plate 13 and the limiting ring 14 are all integrally formed, so that the stability of the structure is improved, a matched limiting block 15 is fixedly arranged on the side wall, through the mutual matching of the strong magnet 16, the limiting ring 14 and the limiting block 15, when the device is reset, the stress plate 7 moves downwards, the resisting plate 13 moves along with the strong magnet 16, so that the arc-shaped clamping rod 20 and the clamping rod 22 are separated, until the limiting block 14 is clamped at the limiting block 15, the stress plate 7 continues to move, the strong magnet 16 on the resisting plate 13 and the stress plate 7 falls off, so that the next buffering is prepared, the device can be reset in time, mechanical loss does not occur in the process, the service life of the device is prolonged, the upper wall of the transverse plate 11 is symmetrically provided with two sliding grooves 17, two sliding blocks 18 are arranged in the two sliding grooves 17 in a sliding manner, a strong spring 19 is fixedly arranged between the two sliding blocks 18 and the side wall of the sliding groove 17, the two sliding blocks 18 are respectively fixedly provided with the arc-shaped clamping rod 20, the clamping rod 22 matched with the arc-shaped clamping rod 21 is fixedly arranged in the cavity 10, the fixed spherical slider 21 that is equipped with of one end that keeps away from diaphragm 11 of arc kelly 21, spherical slider 21 and joint pole 22 set up correspondingly, make the joint that arc kelly 21 can be in the same direction as smooth on joint pole 22, and the frictional force that the slip process received is less, mechanical friction has been reduced, mutually support through joint buffer gear and atress board 7, make safety tongs at the during operation, atress board 7 at first promotes to support board 13, thereby make two arc kellies 20 and joint pole 22 joint each other, and stimulate powerful spring 19 in the process, through the elongation of powerful spring 19, effectual process to atress board 7 striking voussoir 8 cushions, prevent that both directly from taking place the brute force collision, lead to the life of atress board 7 and voussoir 8 to subtract the weak point, and strong multiple striking makes its emergence damage easily, thereby cause great incident.

When the buffer device is used, the pull rod 3 moves upwards, so that the stress plate 7 impacts the abutting plate 13, the strong magnets 16 on the stress plate 7 and the abutting plate 13 are adsorbed together, the transverse plate 11 is pushed to move towards the cavity 10, the arc-shaped clamping rod 20 moves upwards, when the clamping rod 22 passes through, the sliding block 18 slides in the sliding groove 17, the strong spring 19 stretches until the arc-shaped clamping rod 20 is clamped on the clamping rod 22, when the buffer device is reset, the stress plate 7 and the abutting plate 13 move downwards together under the action of the strong magnets 16, the arc-shaped clamping rod 20 is separated from the clamping rod 22 under the action of the strong spring 19, when the limiting ring 14 on the connecting rod 12 reaches the limiting block 15, the stress plate 7 continues to move downwards, so that the stress plate 7 and the strong magnets 16 on the abutting plate 13 are separated, and the next buffer process is prepared.

In addition to the above embodiments, the present invention may have other embodiments; all the technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope claimed by the present invention.

Claims

1. A progressive elevator safety gear with excellent buffering capacity comprises a fixing seat (1) and a fixing plate (2) fixedly arranged at the upper end of the fixing seat (1), wherein a pull rod (3) penetrates through the middle parts of the fixing seat (1) and the fixing plate (2), and is characterized in that two fixing rods (4) are fixedly arranged at the lower end of the fixing plate (2), the two fixing rods (4) are obliquely arranged, the two fixing rods (4) are arranged in a reverse manner, a guide rail (5) is fixedly arranged on the side wall of one side adjacent to the two fixing rods (4), a buffer spring (6) is arranged at the rear side wall of the guide rail (5), two wedge blocks (8) are arranged in the middle of the two guide rails (5), an unbuckling rod (9) is fixedly arranged at the upper ends of the two wedge blocks (8), and the upper end of the unbuckling rod (9) penetrates through the fixing plate, the lower extreme department of pull rod (3) is fixed and is equipped with atress board (7), atress board (7) are close to two voussoirs (8) and set up, just all be equipped with joint buffer gear between atress board (7) and two voussoirs (8).

2. The progressive elevator safety tongs with excellent buffering capacity according to claim 1, wherein the clamping buffering mechanism comprises a cavity (10) arranged at the lower end of two wedge blocks (8), a transverse plate (11) is slidably arranged in the cavity (10), a connecting rod (12) is fixedly arranged at the lower end of the transverse plate (11), the connecting rod (12) extends out of the cavity (10), a resisting plate (13) is fixedly arranged at the lower end of the connecting rod (12), the resisting plate (13) is arranged close to the stress plate (7), strong magnets (16) are fixedly arranged at the joint of the resisting plate (13) and the stress plate (7), a limiting ring (14) is fixedly arranged on the side wall of the connecting rod (12), a matched limiting block (15) is fixedly arranged on the side wall of the cavity (10), and the limiting ring (14) is arranged above the limiting block (15), the upper wall symmetry of diaphragm (11) is equipped with two spout (17), two equal slip is equipped with two slider (18) in spout (17), two all fixed powerful spring (19) that are equipped with between the lateral wall of slider (18) and spout (17), two all fixed arc kelly (20) that are equipped with on slider (18), cavity (10) internal fixation is equipped with arc kelly (20) assorted joint pole (22).

3. The progressive elevator safety gear with excellent buffering capacity according to claim 2, wherein the connecting rod (12), the abutting plate (13) and the limiting ring (14) are integrally formed.

4. The progressive elevator safety gear with excellent buffering capacity as claimed in claim 2, wherein a spherical sliding block (21) is fixedly arranged at one end of the arc-shaped clamping rod (20) far away from the transverse plate (11), and the spherical sliding block (21) and the clamping rod (22) are arranged correspondingly.

5. The progressive elevator safety gear with excellent buffering capacity according to claim 1, wherein the stress plate (7) and the pull rod (3) are integrally formed, and protective paint is coated on the surfaces of the stress plate (7) and the pull rod (3).