CN213950265U

CN213950265U - Rope loosening protection device for integrated elevator

Info

Publication number: CN213950265U
Application number: CN202022512624.5U
Authority: CN
Inventors: 付永生; 金惠昌; 赵磊磊; 匡浩然; 袁宇超
Original assignee: Wuxi Rigid Machinery Co ltd
Current assignee: Wuxi Rigid Machinery Co ltd
Priority date: 2020-11-03
Filing date: 2020-11-03
Publication date: 2021-08-13
Anticipated expiration: 2030-11-03

Abstract

An integrated rope loosening protection device for a hoist comprises a microswitch, a rotating rod, a trigger rod, a deflector rod and a rotary spring. The microswitch is fixed on the box body of the elevator, the trigger rod and the deflector rod are fixed on the rotating rod, the trigger rod is attached to the swing arm under the action of the return spring, and the deflector rod is attached to the lever of the microswitch. When a steel wire rope of the hoister is stressed, the deflector rod extrudes a lever of the microswitch to trigger the microswitch to act, and the hoister is in a working state; when the steel wire rope of the hoister is loosened, the swing arm rotates reversely, the trigger rod is toggled to rotate reversely, and the micro switch sends out a power-off signal to stop the hoister. The protection device of the utility model is triggered when the hoist looses the rope, and sends a power-off signal, which can prevent the hoist from going down further, thus effectively improving the use safety of the hoist; compact structure is exquisite, and is small, and spare part is few, and the function is realized simply, and system reliability stability is good, and it is convenient to install, but wide application in various types of hanging flower basket, lift platform.

Description

Rope loosening protection device for integrated elevator

Technical Field

The utility model relates to a lifting machine field, concretely relates to integrated form lifting machine slack rope protection device.

Background

The existing climbing type hoister in the market is mainly applied to a hanging basket for high-altitude operation in a building, along with the fact that the hoister is applied more and more in various extension fields such as a tower drum lifter, the requirements on the performance, the function, the safety and the like of the hoister are higher and higher. Therefore, the development of the elevator with complete functions and high safety is particularly important for the elevator industry in China.

At present, the rope loosening protection function is generally applied to the field of elevators, and only the rope loosening protection device of a hanging basket with a hoisting device installed on a suspension mechanism corresponds to the field of high-altitude operation hanging baskets. The rope loosening protection device generally adopts an external structure, has large installation limitation, is only suitable for the type of hanging basket, and is difficult to adapt to other types of hanging baskets, lifting platforms and the like.

SUMMERY OF THE UTILITY MODEL

[ problem ] to

The technical problem of the utility model is that: the conventional rope loosening protection device adopts an external structure, has large installation limitation, is only suitable for hanging baskets of specific types, and is difficult to be applied to other types of hanging baskets, lifting platforms and the like.

[ solution ]

The utility model aims at providing a slack rope protection device with lifting machine is integrated triggers the device when the lifting machine slack rope, sends outage signal, prevents further down of lifting machine, effectively improves the security that the lifting machine used.

In order to realize the purpose of the utility model, the technical scheme of the utility model is specifically as follows:

an integrated type hoister rope loosening protection device comprises a microswitch, a rotary rod, a trigger rod, a shifting rod and a return spring, wherein the microswitch is fixed to a box body of the hoister; when a steel wire rope of the elevator is stressed, the swing arm rotates and is far away from the trigger rod, the trigger rod and the shifting rod rotate under the action of the return spring, the trigger rod is continuously attached to the swing arm, the shifting rod extrudes a lever of the microswitch to trigger the microswitch to act, a normally open contact of the microswitch is closed, and the elevator is in a working state; when the steel wire rope of the hoister is loosened, the swing arm reversely rotates, the trigger rod is toggled to reversely rotate, the trigger rod drives the rotating rod and the shifting rod to synchronously reversely rotate, the shifting rod is far away from a lever of the microswitch, the normally open contact is disconnected, and the microswitch sends a power-off signal to stop the hoister.

Further, still include housing and shrouding, the housing is fixed and is formed the enclosure on the shrouding, and the shrouding is fixed on the box, driving lever, return spring and micro-gap switch are located the enclosure, and the both ends of rotary rod have axle sleeve I and axle sleeve II, and axle sleeve I and axle sleeve II are fixed respectively on housing and shrouding, and return spring is located between axle sleeve I and the axle sleeve II, and return spring's one end card is on the driving lever, and return spring's the other end card is on the housing inner wall, and the enclosure is stretched out to the one end of rotary rod, the trigger lever is fixed on the rotary rod stretches out one end of enclosure.

The movable plate is fixed on the movable plate, a sliding groove is formed in the inner wall of the housing, the movable plate is clamped in the sliding groove, a strip-shaped hole parallel to the sliding groove is formed in the housing, the movable plate is fixed on the strip-shaped hole through an adjusting screw, and the position of the movable plate in the housing is adjusted through adjusting the position of the adjusting screw.

Furthermore, the sliding grooves are two parallel sliding grooves, two sides of the moving plate are clamped in the parallel sliding grooves, an ear plate is further arranged on the moving plate, and the adjusting screws are fixed on the ear plate.

Furthermore, the tail part of the trigger rod is provided with a bending part, and the bending part is attached to the swing arm.

Further, the bending part is perpendicular to the trigger lever body and perpendicular to the swing arm.

Further, the trigger bar body is perpendicular to the rotating bar, and the bending part is parallel to the rotating bar.

[ advantageous effects ]

The rope loosening protection device for the integrated elevator is triggered when the elevator looses the rope, and sends a power-off signal, so that the elevator can be prevented from going down further, and the use safety of the elevator is effectively improved; compact structure is exquisite, and is small, and spare part is few, and the function is realized simply, and system reliability stability is good, and it is convenient to install, but wide application in various types of hanging flower basket, lift platform.

Drawings

Fig. 1 is a schematic structural view of an integrated elevator rope loosening protection device of the present invention;

FIG. 2 is a sectional view taken along line A-A of FIG. 1;

FIG. 3 is a schematic view of the installation of the integrated hoist slack rope protection device;

in FIGS. 1-3: 1-housing, 2-moving plate, 3-microswitch, 4-deflector rod, 5-trigger bar, 6-countersunk screw, 7-locknut, 8-rotating bar, 9-shaft sleeve I, 10-return spring, 11-shaft sleeve II, 12-sealing plate, 13-adjusting screw, 14-swing arm, 15-positioning pin and 16-box.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Example 1

As shown in fig. 1-3, an integrated form lifting machine slack rope protection device comprises a microswitch 3, a rotary rod 8, a trigger rod 5, a shifting rod 4 and a return spring 10, wherein the microswitch 3 is fixed on a box 16 of the lifting machine, the rotary rod 8 is fixed on the box 16 through a shaft, the return spring 10 is clamped on the rotary rod 8, the trigger rod 5 and the shifting rod 4 are fixed on the rotary rod 8, the trigger rod 5 is attached to a swing arm 14 under the action of the return spring 10, and the shifting rod 4 is attached to a lever of the microswitch 3. The swing arm 14 is a swing arm of the existing belt load-limiting hoister, can rotate around the positioning pin 15, and can rotate clockwise when not stressed, so as to drive the trigger rod 5 to rotate anticlockwise; the slack rope protection device is fixed to the hoist case 16.

Still include encloser 1 and shrouding 12, encloser 1 passes through countersunk screw 6 to be fixed on shrouding 12, and encloser 1 and shrouding 12 form the enclosure space, and shrouding 12 is fixed on the box 16, driving lever 4, return spring 10 and micro-gap switch 3 are located the enclosure space, and the both ends of rotary rod 8 have axle sleeve I9 and axle sleeve II 11, and axle sleeve I9 and axle sleeve II 11 are fixed respectively on encloser 1 and shrouding 12, between return spring 10 axle sleeve I9 and the axle sleeve II 11, and return spring 10's one end card is on driving lever 4, and return spring 10's the other end card is on encloser 1 inner wall. One end of the rotating rod 8 extends out of the closed space, and the trigger rod 5 is fixed at one end of the rotating rod 8 extending out of the closed space through the locking nut 7. Still include the movable plate 2, micro-gap switch 3 is fixed on

movable plate

2, 1 inner wall of housing has the spout, and 2 blocks of movable plate are in the spout, still have the bar hole that is on a parallel with the spout on the housing 1, and movable plate 2 passes through adjusting screw 13 to be fixed on the bar hole, through the position control of adjustment adjusting screw 13 the movable plate 2 is in the position in the housing 1.

Preferably, the sliding grooves are two parallel sliding grooves, two sides of the moving plate 2 are clamped in the parallel sliding grooves, the moving plate 2 is further provided with an ear plate, and the adjusting screw 13 is fixed on the ear plate.

Preferably, the tail part of the trigger lever 5 is provided with a bent part, and the bent part is attached to the swing arm 14. The bending part is perpendicular to the body of the trigger lever 5 and perpendicular to the swing arm 14. The body of the trigger rod 5 is perpendicular to the rotating rod 8, and the bent part is parallel to the rotating rod 8.

When the elevator is actually used, the rotating rod 8 extends into the elevator box 16, when the steel wire rope of the elevator is stressed, the swing arm 14 rotates and is far away from the trigger rod 5, the trigger rod 5 and the shifting rod 4 rotate under the action of the return spring 10, the trigger rod 5 is continuously attached to the swing arm 14, the shifting rod 4 extrudes the lever of the microswitch 3 to trigger the microswitch 3 to act, the normally open contact of the microswitch 3 is closed, and the elevator is in a working state; when the steel wire rope of the hoister relaxes, the swing arm 14 reversely rotates, the trigger rod 5 is toggled to reversely rotate, the trigger rod 5 drives the rotating rod 8 and the poking rod 4 to synchronously reversely rotate, the poking rod 4 is far away from the lever of the microswitch 3, the normally open contact is disconnected, and the microswitch 3 sends a power-off signal to stop the hoister.

The protection scope of the present invention is not limited to the above embodiments, and any modifications, equivalent replacements, and improvements that can be made by a person skilled in the art within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The integrated type hoister rope loosening protection device comprises a microswitch (3), and is characterized by further comprising a rotating rod (8), a trigger rod (5), a shifting rod (4) and a return spring (10), wherein the microswitch (3) is fixed to a box body (16) of the hoister, the rotating rod (8) is fixed to the box body (16) through a shaft, the return spring (10) is clamped on the rotating rod (8), the trigger rod (5) and the shifting rod (4) are fixed to the rotating rod (8), the trigger rod (5) is attached to a swing arm (14) under the action of the return spring (10), and the shifting rod (4) is attached to a lever of the microswitch (3); when a steel wire rope of the elevator is stressed, the swing arm (14) rotates and is far away from the trigger rod (5), the trigger rod (5) and the shifting rod (4) rotate under the action of the return spring (10), the trigger rod (5) is continuously attached to the swing arm (14), the shifting rod (4) extrudes a lever of the microswitch (3) to trigger the microswitch (3) to act, a normally open contact of the microswitch (3) is closed, and the elevator is in a working state; when the steel wire rope of the elevator is loosened, the swing arm (14) reversely rotates, the trigger rod (5) is stirred to reversely rotate, the trigger rod (5) drives the rotating rod (8) and the shifting rod (4) to synchronously reversely rotate, the shifting rod (4) is far away from the lever of the microswitch (3), the normally open contact is disconnected, and the microswitch (3) sends a power-off signal to stop the elevator.

2. The integrated elevator rope loosening protection device as claimed in claim 1, further comprising a housing (1) and a sealing plate (12), wherein the housing (1) is fixed on the sealing plate (12) to form a closed space, the sealing plate (12) is fixed on the box body (16), the shift lever (4), the return spring (10) and the micro switch (3) are located in the closed space, the two ends of the rotating rod (8) are provided with a shaft sleeve I (9) and a shaft sleeve II (11), the shaft sleeve I (9) and the shaft sleeve II (11) are respectively fixed on the housing (1) and the sealing plate (12), the return spring (10) is located between the shaft sleeve I (9) and the shaft sleeve II (11), one end of the return spring (10) is clamped on the shift lever (4), the other end of the return spring (10) is clamped on the inner wall of the housing (1), and one end of the rotating rod (8) extends out of the closed space, the trigger rod (5) is fixed on one end of the rotating rod (8) extending out of the closed space.

3. The integrated type hoister rope loosening protection device as claimed in claim 2, further comprising a moving plate (2), wherein the microswitch (3) is fixed on the moving plate (2), the inner wall of the housing (1) is provided with a sliding groove, the moving plate (2) is clamped in the sliding groove, the housing (1) is further provided with a strip-shaped hole parallel to the sliding groove, the moving plate (2) is fixed on the strip-shaped hole through an adjusting screw (13), and the position of the moving plate (2) in the housing (1) is adjusted by adjusting the position of the adjusting screw (13).

4. The integrated type hoister rope loosening protection device as claimed in claim 3, wherein the sliding grooves are two parallel sliding grooves, two sides of the moving plate (2) are clamped in the parallel sliding grooves, the moving plate (2) is further provided with an ear plate, and the adjusting screw (13) is fixed on the ear plate.

5. The integrated elevator rope slack protection device as claimed in claim 1, wherein the tail of the trigger lever (5) has a bent portion, and the bent portion is attached to the swing arm (14).

6. The integrated hoist slack rope protection device of claim 5, characterized in that the bend is perpendicular to the trigger lever (5) body and perpendicular to the swing arm (14).

7. The integrated elevator rope slack protection device as claimed in claim 6, wherein the triggering lever (5) body is perpendicular to the rotating lever (8) and the bending part is parallel to the rotating lever (8).