CN110817663A

CN110817663A - Rescue counterweight device of elevator

Info

Publication number: CN110817663A
Application number: CN201911297757.0A
Authority: CN
Inventors: 贾永平
Original assignee: Tianjin Rongchang Science & Technology Co Ltd
Current assignee: Tianjin Shengchi Precision Industry Co ltd
Priority date: 2019-12-17
Filing date: 2019-12-17
Publication date: 2020-02-21
Anticipated expiration: 2039-12-17
Also published as: CN110817663B

Abstract

The utility model provides a rescue counter weight device of elevator, including first splint and second splint, first splint and second splint respectively have two and front and back distribution, be equipped with a plurality of rope sheave between the first splint, also be equipped with same a plurality of rope sheave between the second splint, both ends are connected with corresponding first splint or second splint respectively around the rope sheave shaft, around there being wire rope on the rope sheave, wire rope connects the rope sheave winding on first splint and the second splint and stretches out from the outside of two first splint, be equipped with connecting device between first splint and the second splint, the outside back of first splint is equipped with compensation chain chucking device, the outside back of second splint is equipped with compensation chain chucking device equally. The invention can be always firmly hung on the compensation chain and can not fall off, thereby ensuring the use safety.

Description

Rescue counterweight device of elevator

Technical Field

The invention belongs to the technical field of elevator rescue, and particularly relates to a rescue counterweight device of an elevator.

Background

When the elevator without the machine room is suddenly powered off or fails to lose power, a professional elevator maintenance worker is required to rescue people trapped in the elevator car, if the total weight of the car and internal load is close to the counterweight of the elevator, even if the safety brake of the elevator is manually released, the elevator car is difficult to move to the nearest floor by manpower alone, at the moment, the rescue workers often need to suspend heavy objects on a compensation chain connected with the car and the counterweight block, the stress balance between the car and the counterweight is broken, and the elevator can move to the nearest floor by itself or by using smaller manpower to rescue the trapped people. The existing method for adding a heavy object to a compensation chain mainly adopts direct binding or a method for tightly pressing a clamping plate by using a bolt, a hook is arranged on the clamping plate to hang a balance weight, the installation is time-consuming and labor-consuming, the fixing strength is general, and the balance weight block has the risk of falling at any time.

Disclosure of Invention

The invention provides a rescue counterweight device of an elevator, which is used for solving the defects in the prior art.

The invention is realized by the following technical scheme:

the utility model provides a rescue counter weight device of elevator, including first splint and second splint, first splint and second splint respectively have two and front and back distribution, be equipped with a plurality of rope sheave between the first splint, also be equipped with same a plurality of rope sheave between the second splint, both ends are connected with corresponding first splint or second splint respectively around the rope sheave shaft, around there being wire rope on the rope sheave, wire rope connects the rope sheave winding on first splint and the second splint and stretches out from the outside of two first splint, be equipped with connecting device between first splint and the second splint, the outside back of first splint is equipped with compensation chain chucking device, the outside back of second splint is equipped with compensation chain chucking device equally.

According to the rescue counterweight device of the elevator, the outer peripheral surface of the rope wheel is in an inwards-concave arc shape.

As above rescue counter weight device of elevator, connecting device include the damping rod, fixed mounting has the several damping rod between the first splint, the expansion end of damping rod stretches to the second splint, the expansion end fixedly connected with rectangular block of damping rod, the front and back two sides of rectangular block respectively with correspond the second splint fixed connection of one side.

The rescue counterweight device of the elevator comprises a plurality of convex blocks, wherein the plurality of convex blocks are fixedly arranged on the back surface of the outer side of the first clamping plate, the plurality of same convex blocks are fixedly arranged on the back surface of the outer side of the second clamping plate, and the convex blocks on the first clamping plate and the convex blocks on the second clamping plate are in arc shapes with concave middles.

According to the rescue counterweight device for the elevator, two rope ends extending out of the steel wire rope are knotted into a whole through weaving, and the tail end of each rope end is fixedly connected with the hanging ring.

According to the rescue counterweight device for the elevator, a plurality of reinforcing ribs are fixedly connected between the first clamping plates, and a plurality of same reinforcing ribs are fixedly connected between the second clamping plates.

The invention has the advantages that: when the elevator is used, a user hangs the elevator compensation chain, the compensation chain is positioned between the compensation chain clamping devices, then the steel wire rope is tensioned, the steel wire rope is tensioned to draw the distance between the rope pulleys on the first clamping plate and the second clamping plate, the damping rod is compressed under the stress, the distance between the convex blocks on the two clamping plates is also drawn to enable the compensation chain clamping devices to preliminarily clamp the compensation chain, then the hanging counterweight is added on the hanging ring, the steel wire rope is further tensioned by the gravity of the counterweight, the compensation chain clamping devices completely clamp the compensation chain, the balance between the elevator car and the counterweight on the elevator car is broken at the moment, the elevator car can be moved by rescue workers to carry out rescue work, and after the rescue work is finished, the user can loosen the compensation chain clamping devices with the assistance of the damping rod to dismount the elevator car; even if a user does not dismount the compensation chain device at the first time after rescue is finished, the steel wire rope can swing due to the soft structure, as long as the counterweight suspended on the hanging ring always gives the steel wire rope a gravity action, the compensation chain clamping device can clamp the compensation chain and cannot loosen no matter the compensation chain device is located at any position of the compensation chain, the compensation chain clamping device can be firmly hung on the compensation chain and cannot fall off, and the use safety is guaranteed.

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 introduced 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 creative efforts.

FIG. 1 is a schematic structural view of the present invention; FIG. 2 is a rear view of the present invention; FIG. 3 is an enlarged view of the view A of FIG. 1; fig. 4 is a schematic view of the state of use of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the 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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

A rescue counterweight device of an elevator comprises a first clamping plate 1 and a second clamping plate 2, wherein the first clamping plate 1 and the second clamping plate 2 are respectively provided with two blocks which are distributed front and back, the first clamping plate 1 is respectively aligned with the corresponding second clamping plate 2, a plurality of rope wheels 3 are arranged between the first clamping plate 1, a plurality of same rope wheels 3 are also arranged between the second clamping plate 2, the front end and the back end of a wheel shaft of each rope wheel 3 are respectively connected with the corresponding first clamping plate 1 or the corresponding second clamping plate 2, the rope wheels 3 can rotate around the wheel shaft, steel wire ropes 4 are wound on the rope wheels 3, the steel wire ropes 4 wind and connect the rope wheels 3 on the first clamping plate 1 and the second clamping plate 2 and extend out of the outer sides of the two first clamping plates 1, the rope wheels 3 on the first clamping plate 1 are vertically divided into two rows, one row of the second clamping plate 2 comprises the

rope wheels

32, 34 and 36, the other row comprises the

rope wheels

31 and 37, the rope wheels 3 on the two, the vertical distance between the rope wheel 31 and the rope wheel 37 is twice the diameter of the steel wire rope 4, and the rope wheel 3 on the second clamping plate 2 comprises a rope wheel 33 and a rope wheel 35; one end of the steel wire rope 4 firstly penetrates into the first clamping plate 1 from the space between the rope wheel 31 and the rope wheel 37, then sequentially bypasses the rope wheel 32, the rope wheel 33, the rope wheel 34, the rope wheel 35 and the rope wheel 36, finally penetrates out from the space between the rope wheel 31 and the rope wheel 37 again and is combined with the other end of the steel wire rope 4, a connecting device is arranged between the first clamping plate 1 and the second clamping plate 2, a compensating chain clamping device is arranged on the back surface of the outer side of the first clamping plate 1, and a compensating chain clamping device is also arranged on the back surface of the outer side of. When the elevator lifting ring is used, a user hangs the elevator lifting ring on an elevator compensation chain, the compensation chain is positioned between compensation chain clamping devices, then a steel wire rope 4 is tensioned, the steel wire rope 4 is tensioned to be close to the distance between rope wheels 3 on a first clamping plate 1 and a second clamping plate 2, a damping rod 5 is compressed, the distance between convex blocks 6 on the two clamping plates is also pulled to be close, the compensation chain is preliminarily clamped by the compensation chain clamping devices, then a hanging counterweight is added on a lifting ring 7, the steel wire rope is further tensioned by the gravity of the counterweight, the compensation chain is completely clamped by the compensation chain clamping devices, the balance between an elevator car and the counterweight on the elevator car is broken at the moment, the elevator car can be moved by a rescuer to unfold the rescue work, and after the rescue work is finished, the user can loosen the compensation chain clamping devices under the assistance of the damping rod 5 to dismount the lifting ring; even if a user does not dismount the compensation chain device at the first time after rescue is finished, the steel wire rope 4 can swing due to the soft structure, as long as the counterweight suspended on the hanging ring 7 always gives the steel wire rope 4 a gravity action, and no matter the compensation chain device is positioned at any position of the compensation chain, the compensation chain clamping device can clamp the compensation chain all the time and cannot loosen, the compensation chain device can be firmly hung on the compensation chain all the time and cannot fall off, and the use safety is ensured.

Specifically, as shown in fig. 2, the outer circumferential surface of the sheave 3 according to the present embodiment is shaped like an inwardly concave arc. This structure can make the outer peripheral face of rope sheave 3 and wire rope 4's periphery mutually support, lets wire rope 4 be located the intermediate position of rope sheave 3 periphery all the time when taut, prevents that wire rope accident from deviating from.

Specifically, as shown in fig. 1, this embodiment connecting device include damping rod 5, fixed mounting has several damping rod 5 between the first splint 1, and damping rod 5 is the high strength anti-shear damping rod, and if damping rod 5 if remove external force after the atress compression, damping rod 5 can slowly resume original length again, and damping rod 5's expansion end stretches to second splint 2, and the expansion end fixedly connected with rectangular block of damping rod 5, the front and back two sides of rectangular block respectively with the second splint 2 fixed connection that corresponds one side. The structure connects the first clamping plate 1 and the second clamping plate 2 into a whole, ensures that the first clamping plate 1 and the second clamping plate 2 can only horizontally move relatively, and adopts the high-strength anti-shearing damping rod to be applicable to the high-load service environment of the hanging counterweight of the invention; when the user finishes using and dismantles, only need to remove the counter weight, can part first splint 1 and second splint 2 with the hand, can take off the invention, convenient and fast.

Further, as shown in fig. 2 or fig. 3, the compensating chain clamping device of this embodiment includes a plurality of protruding blocks 6, a plurality of protruding blocks 6 are fixedly installed on the back of the outer side of the first clamping plate 1, a plurality of same protruding blocks 6 are fixedly installed on the back of the outer side of the second clamping plate 2, the protruding blocks 6 on the first clamping plate 1 and the protruding blocks 6 on the second clamping plate 2 are both in an arc shape with a concave middle, and the arc surface of the protruding blocks 6 can be attached to the periphery of the compensating chain of the elevator. When the elevator compensation chain clamping device is used, the convex blocks 6 on the first clamping plate 1 and the second clamping plate 2 can clamp the elevator compensation chain in the middle, the clamping surfaces of the convex blocks 6 adopt arc design, so that the convex blocks 6 are attached to the periphery of the compensation chain more tightly, and the friction force after clamping is increased.

Furthermore, as shown in fig. 1, two ends of the steel wire rope 4 according to the present embodiment are integrally knotted by weaving, and a hanging ring 7 is fixedly connected to the end of the end. This structure can conveniently hang the balancing weight to 4 upward wire rope.

Furthermore, as shown in fig. 1, a plurality of reinforcing ribs 8 are fixedly connected between the first clamping plates 1, and a plurality of the same reinforcing ribs 8 are fixedly connected between the second clamping plates 2. The structure can increase the connecting strength between two corresponding first clamping plates 1 and between two corresponding second clamping plates 2, and prevent the split-type clamping device from being torn when the stress is large.

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

Claims

1. The utility model provides a rescue counter weight device of elevator which characterized in that: including first splint (1) and second splint (2), first splint (1) and second splint (2) respectively have two and front and back distribution, be equipped with a plurality of rope sheave (3) between first splint (1), also be equipped with same a plurality of rope sheave (3) between second splint (2), both ends are connected with corresponding first splint (1) or second splint (2) respectively around rope sheave (3) shaft, around having around wire rope (4) on rope sheave (3), wire rope (4) are connected rope sheave (3) winding on first splint (1) and second splint (2) and are stretched out from the outside of two first splint (1), be equipped with connecting device between first splint (1) and second splint (2), the outside back of first splint (1) is equipped with compensation chain chucking device, the outside back of second splint (2) is equipped with compensation chain chucking device equally.

2. The rescue counterweight device for an elevator as claimed in claim 1, wherein: the outer circumferential surface of the rope wheel (3) is in an inward-sunken arc shape.

3. The rescue counterweight device for an elevator as claimed in claim 1, wherein: connecting device include damping rod (5), fixed mounting has several damping rod (5) between first splint (1), the expansion end of damping rod (5) stretches to second splint (2), the expansion end fixedly connected with rectangular block of damping rod (5), around the rectangular block two sides respectively with correspond second splint (2) fixed connection of one side.

4. The rescue counterweight device for an elevator as claimed in claim 1, wherein: the compensation chain clamping device comprises a plurality of convex blocks (6), a plurality of convex blocks (6) are fixedly mounted on the outer side of the first clamping plate (1), a plurality of same convex blocks (6) are fixedly mounted on the outer side of the second clamping plate (2), and the opposite surfaces of the convex blocks (6) on the first clamping plate (1) and the convex blocks (6) on the second clamping plate (2) are in an arc shape with a concave middle.

5. The rescue counterweight device for an elevator as claimed in claim 1, wherein: two rope ends extending out of the steel wire rope (4) are integrated through weaving and knotting, and the tail ends of the rope ends are fixedly connected with hanging rings (7).

6. The rescue counterweight device for an elevator as claimed in claim 1, wherein: the first splint (1) between fixedly connected with several strengthening ribs (8), fixedly connected with several the same strengthening rib (8) between the second splint (2).