CN205634536U - Elevator safety device - Google Patents

Abstract

The utility model provides an elevator safety device, reasonable in design, simple structure, the security is high, reforms transform with low costs, easily popularization. It is including setting up the buffer group zoarium in the elevartor shaft bottom, the fit foam buffer body that sets gradually including from the top down of buffer group, buffer spring, foam buffer body and gasbag. Still including a plurality of elevator buffer that set up in elevator bottom of the case portion to and corresponding elevator buffer sets up the supporting platform on the elevator wall of a well, the supporting platform that can open and shut sets up in buffer group zoarium top, and the supporting platform lower part sets up the bracing piece, and the one end of bracing piece is articulated with supporting platform, and the other end slides and sets up on the lateral wall of elevartor shaft. Still including setting up the safety hook in elevator roof portion, be provided with the stay cord device on the safety hook, winding wire rope passes movable pulley and fixed pulley connection stay cord device on the hoist engine.

Description

An elevator safety device

technical field

The utility model relates to the technical field of elevator manufacture and application, in particular to an elevator safety device.

Background technique

Elevator is a kind of vertical elevator powered by electric motor, equipped with box-shaped gondola, which is used for multi-storey buildings to take people or carry goods. There is also a step type, and the tread plate is installed on the crawler belt to run continuously, commonly known as an escalator or a moving walk. Fixed lifting equipment serving specified floors. A vertical elevator has a car running between at least two vertical or inclination angles of less than 15° rigid guide rails. In 1852, E.G. Otis of the United States developed a safety elevator for wire rope lifting. In the 1980s, the driving device was further improved, such as the motor driving the winding reel through the worm drive, and the use of a balance weight. At the end of the 19th century, friction wheel transmission was adopted, which greatly increased the lifting height of the elevator. However, the elevators in the prior art are still difficult to achieve the function of safety guarantee. The elevator buffer directly arranged at the bottom of the elevator shaft cannot meet the requirements, and at the same time, it cannot prevent people from falling. Safety incidents after falling often occur, and it is difficult to meet the requirements. people's living needs.

Utility model content

Aiming at the problems existing in the prior art, the utility model provides an elevator safety device, which is reasonable in design, simple in structure, high in safety, low in reconstruction cost and easy to popularize.

The utility model is realized through the following technical solutions:

An elevator safety device includes a buffer assembly arranged at the bottom of an elevator shaft. The buffer assembly includes a foam buffer, a buffer spring, a foam buffer and an air bag arranged in sequence from top to bottom.

Preferably, both ends of the buffer spring are respectively connected to the foam buffer body through mesh steel wires.

Preferably, it also includes a plurality of elevator buffers arranged at the bottom of the elevator box, and a supporting platform corresponding to the elevator buffer arranged on the wall of the elevator shaft; the openable supporting platform is arranged above the buffer assembly, and the lower part of the supporting platform is provided with a supporting platform. One end of the support rod is hinged with the support platform, and the other end is slidably arranged on the side wall of the elevator shaft.

Further, the side wall of the elevator shaft is provided with an induction switch for controlling the opening and closing of the support platform; when the induction switch is blocked by the elevator box, the support platform is opened, and when the induction switch is not blocked, the support platform is retracted to fit the wall of the elevator shaft .

Preferably, it also includes a fall arrester arranged on the top of the elevator box, the fall arrester is provided with a pull rope device, and the wire rope wound on the hoist passes through the movable pulley and the fixed pulley to connect the pull rope device.

Further, a counterweight is connected to the movable pulley.

Further, the steel wire rope includes a main steel wire rope and an auxiliary steel wire rope respectively wound on the two winches; both the main steel wire rope and the auxiliary steel wire rope are connected to the pull rope device.

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

After the utility model is used, when the elevator accidentally falls or people are hoisted into the shaft, the buffer assembly at the bottom of the elevator shaft can provide sufficient buffer strength through the buffer spring while ensuring soft contact, and finally use the airbag to ensure the impact Uniform distribution of force and protection of the upper layer.

Further, an elevator buffer is installed at the bottom of the elevator, and when the elevator falls, the supporting platform that is close to the wall is automatically lowered under the control of the sensor switch to realize the supporting function. When the elevator goes up, it will be close to the wall; it has high safety and is easy to promote and use.

Further, the safety of the elevator can be better ensured through the cooperative setting of the main steel wire rope and the auxiliary steel wire rope. When the main steel wire rope breaks or fails, the auxiliary steel wire rope plays a role of stretching to replace the main steel wire rope to complete the stretching task.

Description of drawings

Fig. 1 is a schematic diagram of the installation structure of the device described in the example of the utility model.

Fig. 2 is an enlarged view of the installation of the buffer assembly described in the example of the utility model.

In the figure: elevator shaft 1; elevator box 2; fall arrester 3; pull rope device 4; steel wire rope 5; fixed pulley 6; movable pulley 7; counterweight 8; air bag 11; buffer spring 12; ; Support platform b; elevator buffer c; sensor switch d.

detailed description

The utility model will be described in further detail below in conjunction with the accompanying drawings, which is an explanation of the utility model rather than a limitation.

The utility model is an elevator safety device, as shown in Figure 1 and Figure 2, comprising a foam buffer 13 arranged at the bottom of the elevator shaft 1 from top to bottom, a buffer spring 12, a foam buffer 13 and an air bag 11, when the elevator When accidentally falling or people are hoisted into the hoistway, the buffer assembly at the bottom of the elevator shaft 1 can provide sufficient buffer strength through the buffer spring 12 while ensuring soft contact, and finally use the airbag 11 to ensure the uniform dispersion and protection of the impact force Protection of upper layers. More preferably, the two ends of the buffer spring 12 are respectively connected with the foam buffer body 13 through mesh steel wires. The effect of the cushioning assembly can not only slow down people's accidental fall into the elevator shaft, but also play a buffering role when the elevator accidentally falls.

As shown in Figure 1, in order to better meet the elevator use and safety requirements, the bottom of the elevator box 2 is provided with a plurality of elevator buffers c, and the position corresponding to the elevator buffer c is set on the wall of the elevator shaft 1 above the buffer assembly There is a support platform b that can be opened and closed. A support rod a is provided at the bottom of the support platform b. One end of the support rod a is hinged to the support platform b, and the other end is slidingly arranged on the side wall of the elevator shaft 1. The opening and closing of the support platform b is performed by The sensor switch d set on the upper part is controlled. When the sensor switch d is blocked by the elevator box 2, the support platform b is opened. When the sensor switch d is not blocked, the support platform b is retracted and installed in close contact with the wall of the elevator shaft 1. Four hydraulic elevator buffers c are installed at the bottom of the elevator. When the elevator falls, the support platform b that is close to the wall is automatically lowered due to the induction switch d and realizes the supporting function with the cooperation of the support rod a. When the elevator rises, the inductive switch d makes the support platform b close to the side wall of the elevator shaft 1 after it rises.

At the same time, an anti-fall device 3 is installed in the middle of the upper end of the elevator box 2, and the anti-fall device 3 is provided with a pull rope device 4, and the steel wire rope 5 passes through the movable pulley 7 and the fixed pulley 6 to connect the pull rope device 4; the movable pulley 7 is connected with a counterweight 8 . The steel wire rope 5 is divided into two parts, the main steel wire rope and the auxiliary steel wire rope. The main steel wire rope plays the main work role. When the main steel wire rope breaks or fails, the auxiliary steel wire rope plays the main stretching role; During the process, the steel wire rope wound on the right reel plays a major role, and when the main steel wire rope breaks, the left steel wire rope begins to be stressed and plays a major role in stretching.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (6)

1. an elevator car safety, it is characterized in that, including the surge combination body being arranged on elevator (1) bottom, surge combination body includes the foam buffer body (13) set gradually from top to bottom, buffer spring (12), foam buffer body (13) and air bag (11)；

Also include the multiple buffer of elevator (c) being arranged on elevator case (2) bottom, and corresponding buffer of elevator (c) is arranged on the support platform (b) on elevator (1) wall；Can the support platform (b) of folding be arranged on above surge combination body, support platform (b) bottom arranges support bar (a), one end of support bar (a) is hinged with support platform (b), and the other end is slidably arranged on the sidewall of elevator (1).

A kind of elevator car safety the most according to claim 1, it is characterised in that the two ends of buffer spring (12) are connected with foam buffer body (13) by meshy steel wire respectively.

A kind of elevator car safety the most according to claim 1, it is characterised in that be provided with the inductive switch (d) for controlling support platform (b) folding on elevator (1) sidewall；After inductive switch (d) is blocked by elevator case (2), support platform (b) is opened, when inductive switch (d) is unobstructed, support platform (b) is packed up and is arranged with the laminating of elevator (1) wall.

A kind of elevator car safety the most according to claim 1, it is characterized in that, also include the catching device (3) being arranged on elevator case (2) top, being provided with rope hauling device (4) on catching device (3), the steel wire rope (5) that hoist engine is wound around connects rope hauling device (4) through movable pulley (7) and fixed pulley (6).

A kind of elevator car safety the most according to claim 4, it is characterised in that the upper connection of movable pulley (7) has counterweight (8).

A kind of elevator car safety the most according to claim 4, it is characterised in that steel wire rope (5) includes main rope and the pair steel wire rope being respectively wound around on two hoist engines；Main rope and secondary steel wire rope are both connected on rope hauling device (4).