CN219279186U

CN219279186U - Safety lock for lifting mechanism and lifter

Info

Publication number: CN219279186U
Application number: CN202320566557.6U
Authority: CN
Inventors: 林敬萱; 李立群
Original assignee: Anometal Aluminum Co ltd
Current assignee: Anometal Aluminum Co ltd
Priority date: 2023-03-21
Filing date: 2023-03-21
Publication date: 2023-06-30
Anticipated expiration: 2033-03-21

Abstract

The utility model provides a safety lock and a lifter for a lifting mechanism, which comprise lifting lugs, a travel switch, a lifting seat and a driving device, wherein the lifting seat is arranged on an external chain and can lift along the chain; the lifting lug is fixedly arranged on the external steel structure girder near the travel switch and is positioned at one side of the chain, a first clamping structure is arranged at one side of the lifting lug near the chain and is used for being mutually clamped and fixed with a second clamping structure arranged at one side of the lifting seat, and the driving device is connected with the lifting lug and is used for driving the lifting lug to rotate around an axis arranged at the top of the lifting lug; when the lifting seat touches the travel switch, the first clamping structure is clamped with the second clamping structure, and the lifting seat is fixed on the lifting lug. The utility model has simple structure and convenient operation, can be clamped on the lifting lug when the lifter contacts with the travel switch, ensures the safe and reliable operation of the mechanism, does not generate safety accidents, and has wide application range and low cost.

Description

Safety lock for lifting mechanism and lifter

Technical Field

The utility model relates to the technical field of elevators, in particular to a safety lock for an elevating mechanism and an elevator.

Background

Lifting mechanisms are widely used in modern equipment, for example construction lifts are vertical hoisting transport equipment widely used in construction. The construction elevator generally comprises a main column, a suspension cage and a transmission mechanism, wherein the main column comprises a plurality of standard section steel frames, and when the transmission mechanism works, the suspension cage is driven to move up and down along the standard section, so that vertical transportation operation is realized. The prior lifting mechanism is commonly provided with a safety lock;

however, the existing safety lock for the lifter has the problems of inconvenient use, small application range, time and labor waste.

Disclosure of Invention

In view of the drawbacks of the prior art, an object of the present utility model is to provide a safety lock and an elevator for an elevator mechanism.

The safety lock for the lifting mechanism comprises a lifting lug, a travel switch, a lifting seat and a driving device, wherein the lifting seat is arranged on an external chain and can lift along the chain, and the travel switch is arranged above the lifting seat;

the lifting lug is fixedly arranged on the external steel structure girder and is positioned at one side of the chain, a first clamping structure is arranged at one side of the lifting lug, which is close to the chain, and is used for being mutually clamped and fixed with a second clamping structure arranged at one side of the lifting seat, and the driving device is connected with the lifting lug and is used for driving the lifting lug to rotate around a shaft arranged at the top of the lifting lug;

when the lifting seat touches the travel switch, the first clamping structure is clamped with the second clamping structure, and the lifting seat is fixed on the lifting lug.

Preferably, the first clamping structure and the second clamping structure are respectively a protruding structure and a groove structure, and are meshed with each other to form a mortise and tenon structure.

Preferably, the first clamping structures and the second clamping structures are multiple, and the first clamping structures and the second clamping structures are sequentially arranged from top to bottom, and the first clamping structures and the second clamping structures are arranged in one-to-one correspondence.

Preferably, when the protruding structure is clamped with the groove structure, the top of the protruding structure is attached to the top of the groove structure to form an attaching surface, and the angle of the attaching surface and the straight line where the motion track of the lifting seat is located is an acute angle.

Preferably, the driving device comprises a motor, and an output shaft of the motor is coaxially connected with a shaft arranged at the top of the lifting lug.

Preferably, the driving means comprises a cylinder, the top of the lifting lug extending towards the side remote from the chain, forming a contact plate, the cylinder being in contact with the bottom of the contact plate for pushing the contact plate to drive the lifting lug to rotate about an axis which it has at its top.

Preferably, the travel switch is fixedly arranged on an external steel structure main beam, and the positions of the travel switch and the lifting lug are matched with the size of the lifting seat.

Preferably, the distance between the shaft and the chain is smaller than the distance between the first engagement structure and the chain.

According to the elevator provided by the utility model, the safety lock for the lifting mechanism is adopted.

Compared with the prior art, the utility model has the following beneficial effects:

the utility model has simple structure and convenient operation, and by the technical means of arranging the lifting lug and the travel switch on the top of the lifter, the lifting lug can be clamped when the lifter contacts the travel switch, thereby ensuring the safe and reliable operation of the mechanism, avoiding safety accidents, and the safety lock has wide application range and low cost.

Drawings

Other features, objects and advantages of the present utility model will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:

fig. 1 is a schematic diagram of the overall structure of the present utility model.

The figure shows:

travel switch 4 of cylinder 1

Lifting lug 2 lifting seat 5

Shaft 3 chain 6

Detailed Description

The present utility model will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present utility model, but are not intended to limit the utility model in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present utility model.

The utility model discloses a safety lock for a lifting mechanism and a lifting machine, which are simple in structure and convenient to operate, and can be clamped on lifting lugs when the lifting machine contacts a travel switch, so that the safe and reliable operation of the mechanism is ensured, no safety accident occurs, and the safety lock is wide in application range and low in cost.

According to the safety lock for the lifting mechanism, as shown in fig. 1, the safety lock comprises a lifting lug 2, a travel switch 4, a lifting seat 5 and a driving device, wherein the lifting seat 5 is arranged on an external chain 6 and can lift along the chain 6, and the travel switch 4 is arranged above the lifting seat 5; the lifting lug 2 is fixedly arranged on an external steel structure main beam, close to the travel switch 4, and is positioned on one side of the chain 6, a first clamping structure is arranged on one side of the lifting lug 2, close to the chain 6, and is used for being mutually clamped and fixed with a second clamping structure arranged on one side of the lifting seat 5, and the driving device is connected with the lifting lug 2 and is used for driving the lifting lug 2 to rotate around a shaft 3 arranged at the top of the lifting lug 2;

the travel switch 4 is fixedly installed on an external steel structure main beam, the positions of the travel switch 4 and the lifting lug 2 are matched with the size of the lifting seat 5, and when the lifting seat 5 touches the travel switch 4, the first clamping structure is clamped with the second clamping structure, so that the lifting seat 5 is fixed on the lifting lug 2.

The first clamping structure and the second clamping structure are respectively in a protruding structure and a groove structure and are meshed with each other to form a mortise and tenon structure. The first clamping structures and the second clamping structures are multiple, the first clamping structures and the second clamping structures are sequentially arranged from top to bottom, and the first clamping structures and the second clamping structures are arranged in one-to-one correspondence. When the protruding structure is clamped with the groove structure, the top of the protruding structure is jointed with the top of the groove structure to form a jointing surface, and the angle of the straight line where the jointing surface and the movement track of the lifting seat 5 are located is an acute angle.

The driving device comprises a motor, and an output shaft of the motor is coaxially connected with a shaft 3 arranged at the top of the lifting lug 2. Or the driving means comprises a cylinder 1, the top of the lifting lug 2 extending towards the side remote from the chain 6, forming a contact plate, the cylinder 1 being in contact with the bottom of the contact plate for pushing the contact plate to drive the lifting lug 2 in rotation about an axis 3 provided at the top thereof. The distance between the shaft 3 and the chain 6 is smaller than the distance between the first clamping structure and the chain 6.

Example 1

The embodiment discloses application of above-mentioned safety lock at actual production, and lug 2 and lifting seat 5 respectively process have three recesses and three archs, and recess and arch of both form a mortise and tenon fourth of twelve earthly branches structure each other, and lug 2 is fixed on the steel structure girder, and lifting seat 5 is driven by chain 6 and goes up and down, and travel switch 4 installs at spacing height. In production, the lifting seat 5 is dragged by the chain 6 to rise, the grooves and the protrusions of the lifting seat can be meshed with the protrusions of the grooves of the lifting lug 2, when the position of the travel switch 4 is reached, the motor is reversed, the lifting seat 5 descends, the grooves and the protrusions of the lifting seat 5 are tightly meshed together, and the lifting seat 5 is fixed at a fixed position. When the lifting seat 5 needs to descend, the chain 6 pulls the lifting seat 5 upwards, and the air cylinder 1 pushes the contact plate of the lifting lug 2, so that the lifting lug 2 rotates around the shaft 3 to open the safety lock, and the lifting seat 5 descends.

In the description of the present application, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements being referred to must have a specific orientation, be configured and operated in a specific orientation, and are not to be construed as limiting the present application.

The foregoing describes specific embodiments of the present utility model. It is to be understood that the utility model is not limited to the particular embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without affecting the spirit of the utility model. The embodiments of the present application and features in the embodiments may be combined with each other arbitrarily without conflict.

Claims

1. The safety lock for the lifting mechanism is characterized by comprising a lifting lug (2), a travel switch (4), a lifting seat (5) and a driving device, wherein the lifting seat (5) is arranged on an external chain (6) and can lift along the chain (6), and the travel switch (4) is arranged above the lifting seat (5);

the lifting lug (2) is fixedly arranged on an external steel structure main beam and is positioned on one side of the chain (6), a first clamping structure is arranged on one side, close to the chain (6), of the lifting lug (2) and is used for being mutually clamped and fixed with a second clamping structure arranged on one side of the lifting seat (5), and the driving device is connected with the lifting lug (2) and is used for driving the lifting lug (2) to rotate around a shaft (3) arranged at the top of the lifting lug;

when the lifting seat (5) touches the travel switch (4), the first clamping structure is clamped with the second clamping structure, and the lifting seat (5) is fixed on the lifting lug (2).

2. The safety lock for a lifting mechanism according to claim 1, wherein the first engaging structure and the second engaging structure are respectively a protruding structure and a groove structure, and are engaged with each other to form a mortise and tenon structure.

3. The safety lock for a lifting mechanism according to claim 2, wherein the first clamping structures and the second clamping structures are multiple, the first clamping structures and the second clamping structures are sequentially arranged from top to bottom, and the first clamping structures and the second clamping structures are arranged in one-to-one correspondence.

4. The safety lock for the lifting mechanism according to claim 2, wherein when the protruding structure is clamped with the groove structure, the top of the protruding structure is attached to the top of the groove structure to form an attaching surface, and the angle of the attaching surface to the straight line of the movement track of the lifting seat (5) is an acute angle.

5. Safety lock for lifting mechanisms according to claim 1, characterized in that the driving means comprise a motor, the output shaft of which is coaxially connected to the shaft (3) provided at the top of the lifting lug (2).

6. Safety lock for a lifting mechanism according to claim 1, characterized in that the driving means comprise a cylinder (1), the top of the lifting lug (2) extending towards the side remote from the chain (6) forming a contact plate, the cylinder (1) being in contact with the bottom of the contact plate for pushing the contact plate to drive the lifting lug (2) in rotation about an axis (3) which it has at its top.

7. Safety lock for lifting mechanisms according to claim 1, characterized in that the travel switch (4) is fixedly mounted on an external steel girder, the positions of the travel switch (4) and lifting lugs (2) being matched to the dimensions of the lifting seat (5).

8. Safety lock for a lifting mechanism according to claim 1, characterized in that the distance between the shaft (3) and the chain (6) is smaller than the distance between the first snap-in structure and the chain (6).

9. An elevator employing the safety lock for an elevator mechanism as claimed in any one of claims 1 to 8.