CN219279441U - Anti-falling mechanism for elevator - Google Patents

Abstract

The utility model provides an anti-falling mechanism for a lifter, which belongs to the technical field of lifting equipment and comprises: a column; the power sub-mechanism is arranged at the top end of the upright post; two chains, after being meshed with the power output end of the power sub-mechanism, one end of each chain hangs down from the outer side surface of the upright post, and the other end of each chain extends into the upright post; the anti-falling strip is provided with a plurality of anti-falling grooves which are arranged side by side from top to bottom, are arranged on the side surfaces of the upright posts and are positioned between the two chains; one end of the anti-falling mechanism is connected with the two chains, and the other end of the anti-falling mechanism is matched with the anti-falling strips. The utility model has the advantages that: the use safety of the elevator is greatly improved.

Description

Anti-falling mechanism for elevator

Technical Field

The utility model relates to the technical field of lifting equipment, in particular to an anti-falling mechanism for a lifting machine.

Background

In the automatic production process, part of production procedures relate to material lifting, such as formation and composition stages in the production process of the battery cells, testing is required after the battery cells are lifted, and some production procedures need to realize various aspects such as material placement at different heights, switching of conveying lines, material lifting and steering, and the like, namely, the lifter has wide application in the automatic production process.

The traditional elevator adopts a structure that a motor drives a chain to rotate and then links related components to lift through the chain, but when the motor fails or the chain breaks, the lifted heavy objects fall off along with the motor due to the fact that no corresponding anti-falling measures are adopted, so that the safety problem is caused.

Through searching, the Chinese patent with the filing date of 2020.09.30 and the filing number of CN202022206225.6 discloses a single chain elevator, a motor and a gear reduction system of the single chain elevator are arranged in a shell, the gear reduction system consists of a primary gear reduction mechanism and a secondary gear reduction mechanism, a single ring chain surrounds a lifting wheel between two mounting plates in the shell, lifting hooks are respectively arranged at two ends of the bottom of the single ring chain, an output shaft of the motor drives a primary planetary gear to rotate along an inner gear disc, the middle part of the inner gear disc is connected with one end of a transmission shaft, the other end of the transmission shaft is connected with a transmission gear disc of the secondary gear reduction mechanism, the transmission gear disc drives a secondary planetary gear to rotate, and the secondary planetary gear is connected with a lifting wheel shaft. The patent does not take corresponding anti-falling measures, so that potential safety hazards exist when a motor fails or a chain breaks.

Therefore, how to provide an anti-falling mechanism for a lifter to improve the use safety of the lifter is a technical problem to be solved.

Disclosure of Invention

The utility model aims to solve the technical problem of providing an anti-falling mechanism for a lifting machine, which is used for improving the use safety of the lifting machine.

The utility model is realized in the following way: an anti-crash mechanism for a hoist, comprising:

a column;

the power sub-mechanism is arranged at the top end of the upright post;

two chains, after being meshed with the power output end of the power sub-mechanism, one end of each chain hangs down from the outer side surface of the upright post, and the other end of each chain extends into the upright post;

the anti-falling strip is provided with a plurality of anti-falling grooves which are arranged side by side from top to bottom, are arranged on the side surfaces of the upright posts and are positioned between the two chains;

one end of the anti-falling mechanism is connected with the two chains, and the other end of the anti-falling mechanism is matched with the anti-falling strips.

Further, the power sub-mechanism is a motor or an air cylinder.

Further, the anti-falling mechanism includes:

a fixing seat;

the middle part of the pawl is rotationally connected with the inside of the fixing seat, and the bottom end of the pawl is matched with the anti-falling groove;

the middle part of the chain connecting block is rotationally connected with the top end of the pawl, and the two ends of the chain connecting block are respectively connected with the tail end of a chain;

and the spring is arranged between the bottom end of the pawl and the fixed seat.

The utility model has the advantages that:

the chain is connected with one end of the power output end of the power sub-mechanism, a pawl of the anti-falling mechanism is matched with a vertically arranged anti-falling strip, and the other end of the chain is used for lifting a heavy object; when the anti-falling mechanism works normally, the chain pulls the pawl compression spring through the link block, when the power sub-mechanism breaks down or one of the chains breaks, the pawl is ejected out by the elasticity of the release spring and is clamped in an anti-falling groove of the anti-falling bar, namely, the lifting structure is locked, the heavy object is prevented from falling, and therefore the use safety of the elevator is greatly improved.

Drawings

The utility model will be further described with reference to examples of embodiments with reference to the accompanying drawings.

Fig. 1 is a schematic view of a fall protection mechanism for a hoist according to the present utility model.

Fig. 2 is a schematic diagram of the power mechanism, chain and anti-falling mechanism of the present utility model.

Fig. 3 is a schematic structural view of the anti-drop mechanism of the present utility model.

Fig. 4 is a schematic view showing a structure of a state of use of the fall prevention mechanism for a hoist according to the present utility model.

Marking:

100-an anti-falling mechanism for a lifter, which comprises a 1-upright post, a 2-power sub-mechanism, a 3-chain, a 4-anti-falling bar, a 5-anti-falling mechanism, a 41-anti-falling groove, a 51-fixing seat, a 52-pawl, a 53-link block and a 54-spring.

Detailed Description

The embodiment of the utility model solves the technical problem that the lifting weight falls along with the failure of the motor or the breakage of the chain when the lifting machine does not take corresponding anti-falling measures in the prior art by providing the anti-falling mechanism 100 for the lifting machine, and achieves the technical effect of greatly improving the use safety of the lifting machine.

The technical scheme in the embodiment of the utility model aims to solve the problems, and the overall thought is as follows: the anti-falling mechanism 5 matched with the anti-falling strip 4 is arranged, when the power sub mechanism 2 fails or one of the chains 3 breaks, the spring 54 of the anti-falling mechanism 5 ejects the pawl 52 and is clamped in the anti-falling groove 41 of the anti-falling strip 4, namely, the lifting structure is locked, and the heavy object is prevented from falling, so that the use safety of the elevator is improved.

In order to better understand the above technical solutions, the following detailed description will refer to the accompanying drawings and specific embodiments.

Referring to fig. 1 to 4, a fall protection mechanism 100 for a hoist according to a preferred embodiment of the present utility model includes:

a column 1 for carrying the anti-falling mechanism 100;

the power sub-mechanism 2 is arranged at the top end of the upright post 1 and is used for linking the chain 3 to drive;

two chains 3, after engaging with the power output end of the power sub-mechanism 2, one end hangs down from the outer side surface of the upright 1, and the other end stretches into the upright 1 for lifting by a linkage lifting component (not shown);

the anti-falling strip 4 is provided with a plurality of anti-falling grooves 41 which are arranged side by side from top to bottom, are arranged on the side surfaces of the upright posts 1, are positioned between the two chains 3 and are used for clamping the anti-falling mechanism 5;

one end of the anti-falling mechanism 5 is connected with the two chains 3, and the other end of the anti-falling mechanism is matched with the anti-falling strips 4 and is used for clamping when the power sub-mechanism 5 or the chains 3 fail.

The power sub-mechanism 2 is a motor or a cylinder.

The anti-falling mechanism 5 includes:

a fixing base 51;

a pawl 52, the middle part of which is rotatably connected with the inside of the fixed seat 51, and the bottom end of which is matched with the anti-falling groove 41;

a link block 53, the middle part of which is rotatably connected with the top end of the pawl 52, and the two ends of which are respectively connected with the tail end of the chain 3;

a spring 54, which is arranged between the bottom end of the pawl 52 and the fixed seat 51; the spring 54 is in a compressed state under the action of the power sub-mechanism 2, the chains 3, the link blocks 53 and the pawls 52, and when the power sub-mechanism 2 fails or one of the chains 3 breaks, the pawls 52 are ejected by the elastic force release of the spring 54.

The working principle of the utility model is as follows:

the chain 3 in the upright 1 is linked with the lifting part to lift the weight under the action of the power sub-mechanism 2, the anti-falling mechanism 5 is in a contracted state (the pawl 52 does not extend) under the normal working state, and when the power sub-mechanism 2 breaks down or one of the chains 3 breaks, the anti-falling mechanism 5 is in a working state (the pawl 52 extends), and the anti-falling groove 41 of the anti-falling strip 4 is used for clamping to prevent the weight from falling.

In summary, the utility model has the advantages that:

the chain is connected with one end of the power output end of the power sub-mechanism, a pawl of the anti-falling mechanism is matched with a vertically arranged anti-falling strip, and the other end of the chain is used for lifting a heavy object; when the anti-falling mechanism works normally, the chain pulls the pawl compression spring through the link block, when the power sub-mechanism breaks down or one of the chains breaks, the pawl is ejected out by the elasticity of the release spring and is clamped in an anti-falling groove of the anti-falling bar, namely, the lifting structure is locked, the heavy object is prevented from falling, and therefore the use safety of the elevator is greatly improved.

While specific embodiments of the utility model have been described above, it will be appreciated by those skilled in the art that the specific embodiments described are illustrative only and not intended to limit the scope of the utility model, and that equivalent modifications and variations of the utility model in light of the spirit of the utility model will be covered by the claims of the present utility model.

Claims (3)

1. A prevent weighing down mechanism for lifting machine, its characterized in that: comprising the following steps:

a column;

the power sub-mechanism is arranged at the top end of the upright post;

two chains, after being meshed with the power output end of the power sub-mechanism, one end of each chain hangs down from the outer side surface of the upright post, and the other end of each chain extends into the upright post;

the anti-falling strip is provided with a plurality of anti-falling grooves which are arranged side by side from top to bottom, are arranged on the side surfaces of the upright posts and are positioned between the two chains;

one end of the anti-falling mechanism is connected with the two chains, and the other end of the anti-falling mechanism is matched with the anti-falling strips.

2. A fall arrest mechanism for a hoist as in claim 1, characterized in that: the power sub-mechanism is a motor or an air cylinder.

3. A fall arrest mechanism for a hoist as in claim 1, characterized in that: the anti-falling mechanism comprises:

a fixing seat;

the middle part of the pawl is rotationally connected with the inside of the fixing seat, and the bottom end of the pawl is matched with the anti-falling groove;

the middle part of the chain connecting block is rotationally connected with the top end of the pawl, and the two ends of the chain connecting block are respectively connected with the tail end of a chain;

and the spring is arranged between the bottom end of the pawl and the fixed seat.

Images