CN214298789U

CN214298789U - Anti-falling device of elevator

Info

Publication number: CN214298789U
Application number: CN202120237909.4U
Authority: CN
Inventors: 吴玉平; 胡佩涛; 吴洪亚; 胡俸豪
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-28
Filing date: 2021-01-28
Publication date: 2021-09-28
Anticipated expiration: 2031-01-28

Abstract

The utility model belongs to the technical field of lift auxiliary assembly technique and specifically relates to a lift anti-falling device, include along lift vertical arrangement's card strip, the draw-in groove has been seted up along its direction of height to the card strip, and one side of card strip is equipped with the kelly of slope, and the kelly passes through the round pin hub connection on the lift mobile station, and in the lower extreme of kelly inserted the draw-in groove along the rotation of round pin pivot point, the one end of the spring of joint support kelly upper end on the lift mobile station, the other end and the kelly of spring were connected. The use of the device can not only ensure that the elevator moving platform has the anti-falling function through the cooperation of the clamping rod and the clamping groove, but also has simple structure, thereby realizing the purpose of reducing the cost and further reducing the maintenance difficulty and the maintenance cost.

Description

Anti-falling device of elevator

Technical Field

The utility model belongs to the technical field of lift auxiliary assembly, specifically speaking is a lift anti-falling device.

Background

In the use process of the lifting equipment, if the steel wire rope is broken or the connecting structure is fatigued, the lifting equipment falls rapidly, which is very dangerous, not only can harm the life safety of users, but also can bring huge economic loss.

In order to prevent the sudden falling of the lifting device, a falling prevention device is often added on the lifting device to ensure the stable use of the lifting device. The existing anti-falling equipment is complex in structure, so that the manufacturing cost is increased, and the maintenance difficulty and the maintenance cost are increased.

SUMMERY OF THE UTILITY MODEL

The utility model provides a lift anti-falling device for solve the defect among the prior art.

The utility model discloses a following technical scheme realizes:

the utility model provides a lift anti-falling device, includes along lift vertical arrangement's card strip, and the draw-in groove has been seted up along its direction of height to the card strip, and one side of card strip is equipped with the kelly of slope, and the kelly passes through the round pin hub connection on the lift mobile station, and in the lower extreme of kelly inserted the draw-in groove along the rotation of round pin axle point, the one end of the spring of joint support kelly upper end on the lift mobile station, the other end and the kelly of spring were connected.

In this device, because the slope of kelly upper end is upwards, the lower extreme slope of kelly is down and insert in the draw-in groove, because the kelly passes through round pin hub connection on the lift mobile station, consequently, kelly lower extreme and kelly upper end are rotatory and the direction of rotation is same hour hand direction along the round pin axle. When the device is used, when the elevator moving platform moves upwards, the clamping rod moves upwards along with the elevator moving platform, and the clamping rod is an inclined rod from the lower end to the upper end, so that the lower end of the clamping rod can slide out of the clamping groove below and pass through the clamping groove above when ascending. The lower end of the clamping rod moves upwards along with the elevator moving platform, the lower end of the clamping rod can rotate anticlockwise when being separated from the clamping groove under the action of the clamping groove, the upper end of the clamping rod also rotates anticlockwise, so that the upper end of the clamping rod is far away from the middle plate, further, the spring generates tension, the lower end and the upper end of the clamping rod both rotate clockwise and return under the action of the spring tension when the lower end of the clamping rod enters the upper clamping groove, and the like, so that the clamping rod can be always clamped into the clamping groove with the corresponding height when ascending along with the elevator moving platform, when the elevator moving platform descends due to the fact that a steel wire is broken or other factors are not manually operated, the lower end of the clamping rod is inserted into the clamping groove and supports the upper end of the clamping rod by the spring, therefore, the elevator moving platform can be effectively prevented from sliding downwards under the common supporting action of the clamping rod and the spring, and when the elevator moving platform slides downwards manually, the lower end of the clamping rod is reversely pulled, so that the lower end of the clamping rod rotates out of the clamping groove and then the elevator moving platform is started reversely.

Preferably, the elevator moving platform further comprises an intermediate plate fixedly connected between the two connecting plates, one side surface of the intermediate plate, which is opposite to the outer end of the spring, is fixedly connected with the spring, and the inner end of the spring is fixedly connected with the upper end of the clamping rod. The two connecting plates can conveniently and fixedly connect the two ends of the pin shaft, so that the pin shaft can be ensured to drive the clamping rod to synchronously move along with the elevator moving platform.

Preferably, an intermediate plate far away from the outer end of the spring is vertically connected between the connecting plates, the inner end of the spring is fixedly connected with the upper end of the clamping rod, and the outer end of the spring is fixedly connected with the intermediate plate. The outer end of the spring is fixedly connected with the middle plate far away from the outer end of the spring, so that the spring can support the upper end of the clamping rod.

Preferably, the lower end of the clamping rod and the middle plate are both provided with jacks, and hooks at the corresponding ends of the springs are respectively hung in the corresponding jacks. The spring is connected between the clamping rod and the middle plate in a hook mode, so that the spring can be conveniently replaced, and the long-term use of the device is further ensured.

Preferably, the two sides of the pin shaft are sleeved with pipe sleeves, the pipe sleeves are fixedly connected with the clamping rods, and the back faces of the pipe sleeves are in clearance fit with the opposite faces of the connecting plate. The pipe sleeve can limit the movement of the clamping rod and ensure that the clamping rod rotates at the fixed position of the pin shaft.

Preferably, the pipe sleeve is close to a side fixedly connected with limiting block of the clamping strip, the limiting block faces towards one side of the clamping strip and is an arc-shaped surface protruding towards the clamping strip, a limiting plate is fixedly connected between the two connecting plates, and the clamping strip is located between the limiting plate and the limiting block. The combined action of the limiting blocks and the limiting plates can ensure that the clamping strip is in a stretched state, and further the perfect use of the clamping strip is ensured.

Preferably, the clamping grooves are uniformly distributed on the clamping strips.

Preferably, the lower end of the clamping rod is fixedly connected with a pull wire. When the pull wire can be pulled by a worker, acting force can be generated on the lower end of the clamping rod, and the lower end of the clamping rod is pulled out of the corresponding clamping groove.

The utility model has the advantages that: the use of the device can not only ensure that the elevator moving platform has the anti-falling function through the cooperation of the clamping rod and the clamping groove, but also has simple structure, thereby realizing the purpose of reducing the cost and further reducing the maintenance difficulty and the maintenance cost.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

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

FIG. 2 is a view in the direction A of FIG. 1;

FIG. 3 is a view showing the arrangement of the clip strip and the clip lever.

Shown in the figure:

1. the device comprises a clamping strip, 2, a clamping groove, 3, a clamping rod, 4, an elevator moving platform, 5, a spring, 6, a jack, 7, a pipe sleeve, 8, a limiting block, 9, a limiting plate, 10, a stay wire, 41, a connecting plate, 42 and a middle plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

An elevator fall arrest device, as shown in figures 1-3. Comprises a clamping strip 1 which is vertically arranged along an elevator, the clamping strip 1 is evenly provided with clamping grooves 2 along the height direction, one side of the clamping strip 1 is provided with a clamping rod 3 the lower end of which inclines towards the clamping grooves 2, an elevator moving platform 4 comprises connecting plates 41 which are arranged front and back, the two connecting plates 41 are fixedly connected through a middle plate 42, the clamping rod 3 is positioned between the two connecting plates 41 and is rotationally connected on the connecting plates 41 through a pin shaft, the lower end of the clamping rod 3 is rotationally inserted into or moved out of the clamping grooves 2 along the pin shaft point, the upper end of the clamping rod 3 and the upper part of the middle plate 42 are provided with jacks 6, a spring 5 is arranged between the clamping rod 3 and the middle plate 42, hooks at two ends of the spring 5 are all hung in the jacks 6 at the corresponding side, wherein the spring 5 is transversely arranged between the clamping rod 3 and the middle plate 42, the lower end of the clamping rod 3 is fixedly connected with one end of the stay wire 10, and the other end of the stay wire 10 extends downwards to a place which can be grasped by a worker standing on the ground.

In this device, because 3 upper ends slopes of kelly are upwards, the lower extreme slope of kelly 3 is down and insert in draw-in groove 2, because kelly 3 through the round pin hub connection on lift mobile station 4, consequently, 3 lower extremes of kelly and 3 upper ends of kelly are rotatory and the direction of rotation is same hour hand direction along the round pin axle.

When the device is used, when the elevator mobile station 4 moves upwards, the clamping rod 3 moves upwards along with the elevator mobile station 4, and the clamping rod 3 is an inclined rod from the lower end to the upper end, so that the lower end of the clamping rod 3 can slide out of the clamping groove 2 below and pass through the clamping groove 2 above when ascending. The lower extreme of kelly 3 is following 4 rebound of lift mobile station, and 3 lower extremes of kelly can produce anticlockwise rotation when breaking away from draw-in groove 2 under the draw-in groove 2 effect, and 3 upper ends of kelly produce anticlockwise rotation equally to intermediate lamella 42 is kept away from to 3 upper ends of kelly, and then spring 5 produces the pulling force, and 3 lower extremes of kelly and the equal clockwise rotation of upper end and the return of kelly under the spring 5 pulling force effect when 3 lower extremes of kelly get into top draw-in groove 2. And the rest is done in sequence, so that the clamping rod 3 can be clamped into the clamping groove 2 with the corresponding height all the time when rising along with the lifting machine moving platform 4.

And when lift mobile station 4 descends because steel wire fracture or other factors lead to the non-manual operation of lift, because 3 lower extremes of kelly insert in draw-in groove 2, spring 5 supports 3 upper ends of kelly, consequently can effectually prevent lift mobile station 4 gliding under the common supporting action of kelly 3 and spring 5, and when the artificial needs with lift mobile station 4 gliding, the pulling is acted as go-between 10, the 10 reverse rotation that acts as go-between drives kelly 3, make 3 lower extremes of kelly rotate out behind draw-in groove 2 reverse start lift mobile station 4 can.

Jacks 6 are respectively arranged at the lower end of the clamping rod 3 and the middle plate 42, and hooks at the corresponding ends of the springs 5 are respectively hung in the corresponding jacks 6. The spring 5 is connected between the clamping rod 3 and the middle plate 42 in a hook mode, so that the spring 5 can be conveniently replaced, and the long-term use of the device is further ensured.

The two sides of the pin shaft are sleeved with the pipe sleeves 7, the pipe sleeves 7 are fixedly connected with the clamping rods 3, and the back faces of the pipe sleeves 7 are in clearance fit with the opposite faces of the connecting plate 41. The pipe sleeve 7 can limit the movement of the clamping rod 3 and ensure that the clamping rod 3 rotates at the fixed position of the pin shaft.

A side fixedly connected with stopper 8 that pipe box 7 is close to card strip 1, stopper 8 is the convex arcwall face to card strip 1 direction towards a side of card strip 1, and fixedly connected with limiting plate 9 still between two connecting plates 41, card strip 1 is located between limiting plate 9 and stopper 8. The combined action of the limiting block 8 and the limiting plate 9 can ensure that the clamping strip 1 is in a stretched state, and further the perfect use of the clamping strip 1 is ensured.

The use of this device can not only make lift mobile station 4 have the function of preventing falling through the cooperation of kelly 3 and draw-in groove 2, simple structure simultaneously to can realize reduce cost's purpose, and then reduce the maintenance degree of difficulty and cost of maintenance.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides an elevator anti-falling device which characterized in that: including the card strip along lift vertical arrangement, the draw-in groove has been seted up along its direction of height to the card strip, and one side of card strip is equipped with the kelly of slope, and the kelly passes through the round pin hub connection on the lift mobile station, and in the lower extreme of kelly inserted the draw-in groove along the rotation of round pin axle point, the one end of the spring of joint support kelly upper end on the lift mobile station, the other end and the kelly of spring were connected.

2. The elevator fall arrest device according to claim 1, wherein: the elevator moving platform comprises connecting plates which are fixedly connected together and distributed in the front and back direction, and the clamping rod is positioned between the two connecting plates and is movably connected with the two connecting plates through a pin shaft.

3. The elevator fall arrest device according to claim 2, wherein: the elevator moving platform also comprises an intermediate plate fixedly connected between the two connecting plates, one side surface of the intermediate plate opposite to the outer end of the spring is fixedly connected with the spring, and the inner end of the spring is fixedly connected with the upper end of the clamping rod.

4. The elevator fall arrest device according to claim 3, wherein: jacks are formed in the lower end of the clamping rod and the middle plate, and hooks at the corresponding ends of the springs are hung in the corresponding jacks respectively.

5. The elevator fall arrest device according to claim 2, wherein: the two sides of the pin shaft are sleeved with pipe sleeves, the pipe sleeves are fixedly connected with the clamping rods, and the back faces of the pipe sleeves are in clearance fit with the opposite faces of the connecting plates.

6. The elevator fall arrest device according to claim 5, wherein: a side fixedly connected with stopper that the pipe box is close to the card strip, the stopper is towards the protruding arcwall face of a side of card strip for blocking the strip direction, and fixedly connected with limiting plate still between two connecting plates, the card strip is located between limiting plate and the stopper.

7. The elevator fall arrest device according to claim 1, wherein: the clamping grooves are uniformly distributed on the clamping strips.

8. The elevator fall arrest device according to claim 1, wherein: the lower end of the clamping rod is fixedly connected with a pull wire.