CN205500496U - A device for preventing accidental movement of an elevator - Google Patents

Abstract

The utility model discloses a device for preventing unexpected removal of elevator, including being fixed in the car prevent the basic block group that falls and prevent rising the basic block group, prevent the basic block group that falls and prevent rising the basic block group and all include that two symmetries set up in the basic block of elevator guide rail both sides, prevent that two basic block opposite face slopes of basic block group are the splayed, prevent rising two basic block opposite face slopes of basic block group and be the splayed, equal fixed solenoid that is connected with car door detection switch electricity that is provided with on arbitrary basic block opposite face, solenoid's one end has a wedge through spring coupling, the wedge is provided with the slide corresponding to the slider on being provided with slider and basic block with basic block contact surface department, the wedge is provided with the braking piece with elevator guide rail contact surface department, the utility model discloses braking effect is good, and the reliability is high.

Description

A device for preventing accidental movement of an elevator

technical field

The utility model relates to the technical field of elevator safety protection equipment, in particular to a device for preventing accidental movement of an elevator.

Background technique

The traditional elevator is not equipped with a car accidental movement protection device. When the car is leveling in the door opening area of the leveling floor, there may be a non-manipulative car accidental movement. This kind of accidental movement of the car in the leveling area It is easy to cut and hurt passengers, which brings great safety hazards to passengers and also reduces the safety of the elevator.

Considering the safety of the elevator, the elevator car is equipped with a safety braking device, which is mainly to ensure that the elevator can brake safely and stably when it stops, so as to prevent it from accidentally slipping and causing accidents. The braking devices currently used are all For sliding friction braking, such as the brake protection device mentioned in a wire rope protection device to prevent accidental movement of the car (application number 201120365619.4), if it is used for a long time, the brake nylon block will cause brake failure due to wear , The braking effect is not reliable.

Utility model content

(1) Technical problems to be solved

In order to overcome the deficiencies of the prior art, a device for preventing accidental movement of the elevator is proposed, which has good braking effect and high reliability.

(2) Technical solution

The utility model is realized through the following technical scheme: the utility model proposes a device for preventing accidental movement of the elevator, including an anti-fall foundation block group and an anti-lift foundation block group fixed on the car, an anti-fall foundation block group and an anti-lift The lifting foundation block group includes two foundation blocks symmetrically arranged on both sides of the elevator guide rail. The surface is inclined in a figure-eight shape, and an electromagnetic coil electrically connected to the car door detection switch is fixedly installed on the opposite surface of any foundation block. One end of the electromagnetic coil is connected to a wedge block through a spring, and the wedge block is on the contact surface with the foundation block. A slide block is provided at the base block and a slideway is provided on the base block corresponding to the slide block, and a brake pad is provided at the contact surface of the wedge block with the elevator guide rail.

Preferably, the wedge-shaped block is made of a magnetic attracting material capable of magnetically adsorbing the energized electromagnetic coil, and the magnetic attracting material is a magnet or an iron alloy.

(3) Beneficial effects

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

The utility model mentions a device for preventing the accidental movement of the elevator. It controls whether the electromagnetic coil is energized and has magnetism through the car door detection switch. When the car door is opened, the electromagnetic coil is powered off, and the wedge-shaped block is squeezed under the action of the spring. On the guide rail of the elevator, it plays the role of braking. Whenever the car moves slightly and unexpectedly, the closer the wedge block will be squeezed, the better the braking effect and high reliability.

Description of drawings

Fig. 1 is the structural representation of the utility model.

1-Anti-fall foundation block group; 2-Anti-lift foundation block group; 3-Elevator guide rail; 4-Electromagnetic coil; 5-Spring; 6-Wedge block; 7-Slider block; Detection switch; 10-brake pad; 11-basic block.

detailed description

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

A device for preventing accidental movement of an elevator as shown in Figure 1, including an anti-fall foundation block group 1 and an anti-lift foundation block group 2 fixed on the car, an anti-fall foundation block group 1 and an anti-lift foundation block group 2 Each includes two basic blocks 11 symmetrically arranged on both sides of the elevator guide rail 3. The two basic blocks 11 of the anti-fall basic block group 1 are inclined in an inverted figure-eight shape, and the anti-lift basic block group 2 has two basic blocks. The opposite surface of 11 is inclined in a figure-eight shape, and an electromagnetic coil 4 electrically connected to the car door detection switch 9 is fixedly arranged on the opposite surface of any basic block 11, and one end of the electromagnetic coil 4 is connected to a wedge-shaped block 6 through a spring 5. The wedge block 6 is provided with a slide block 7 at the contact surface with the base block 11 and a slideway 8 is provided corresponding to the slide block 7 on the base block 11 , and the wedge block 6 is provided with a brake pad 10 at the contact surface with the elevator guide rail 3 .

Wherein, the wedge-shaped block 6 is made of a magnetic attracting material capable of magnetically attracting the electrified electromagnetic coil 4 , and the magnetic attracting material is a magnet or an iron alloy.

The utility model mentions a device for preventing accidental movement of an elevator. When it is used in practice, when the car door is closed, the car door detection switch 9 detects the closing signal, and controls the electromagnetic coil 4 to be energized. Using the electromagnetic principle, the electromagnetic The coil 4 generates a magnetic field, which can generate a magnetic adsorption force on the wedge block 6. The wedge block 6 on the anti-fall base block group 1 moves upward in the slideway 8 through the slider 7, and the wedge block 6 on the anti-lift base block group 2 passes through. The slide block 7 moves downward in the slideway 8, the wedge block 6 deviates from the elevator guide rail 3, and the elevator runs normally.

When the elevator stops at a certain floor, the elevator car door is opened, and the car door detection switch 9 detects the opening signal, and the control electromagnetic coil 4 is powered off, and the wedge-shaped block 6 is driven by the spring 5 under the force of the spring 5. The slider 7 moves along the slideway 8, and the brake pad 10 on the wedge block 6 can be tightly attached to the elevator guide rail 3 to fix the car and prevent accidental movement. When the car moves upward, it is located on the anti-lift foundation The wedge-shaped block 6 at the block group 2 will be squeezed upwards tighter, and when the car moves downward, the wedge-shaped block 6 at the anti-fall foundation block group 1 will be squeezed tighter downwards, with high safety and reliability .

The above-mentioned embodiments are only descriptions of preferred implementations of the present utility model, and are not intended to limit the concept and scope of the present utility model. Under the premise of not departing from the design concept of the present utility model, various modifications and improvements made by ordinary persons in the art to the technical solution of the present utility model should fall into the protection scope of the present utility model, and the technology claimed by the utility model The contents are all described in the claims.

Claims (2)

1. A device for preventing accidental movement of the elevator, comprising an anti-fall foundation block group (1) and an anti-lift foundation block group (2) fixed on the car, characterized in that: the anti-fall foundation block group (1) and the anti-fall foundation block group (1) The lifting foundation block group (2) includes two foundation blocks (11) symmetrically arranged on both sides of the elevator guide rail (3). The two basic blocks (11) of the anti-lift foundation block group (2) are in a figure-eight shape, and the opposite surfaces of the two basic blocks (11) are in a figure-eight shape, and a car door detection switch (9) is fixedly installed on the opposite surface of any basic block (11). Electrically connected electromagnetic coil (4), one end of the electromagnetic coil (4) is connected to a wedge block (6) through a spring (5), and the wedge block (6) is provided with a slider at the contact surface with the base block (11) (7) and the base block (11) is provided with a slideway (8) corresponding to the slide block (7), and the wedge block (6) is provided with a brake pad (10) at the contact surface with the elevator guide rail (3). 2. A device for preventing accidental movement of an elevator according to claim 1, characterized in that: the wedge (6) is made of a magnetically attracting material capable of magnetically adsorbing to the electrified electromagnetic coil (4) , the magnetic attracting material is a magnet or an iron alloy.