CN110155847A - Energy consumption buffer device for elevator falling - Google Patents

Abstract

The invention relates to an elevator falling energy consumption buffer device, which belongs to the technical field of elevators. The device includes rubber at the bottom of the elevator, a buffer plate, a high-strength spring, and a buffer sheet. The bottom of the elevator is provided with rubber at the bottom of the elevator, and the high-strength spring is arranged at the bottom of the elevator shaft. A buffer sheet is provided on the buffer plate, and the buffer sheet is a double semi-elliptical sheet structure, which deforms after being compressed. In the present invention, components such as buffer plates, high-strength springs, and buffer plates arranged in the elevator shaft are provided with high-strength springs at the bottom of the elevator shaft, and the upper part relies on the buffer plate. The inner high-strength spring is connected, and on the buffer sheet, a buffer sheet made of memory alloy is arranged, and friction rubber is arranged around the elevator shaft. Realize the purpose of elevator falling energy consumption buffer.

Description

Energy consumption buffer device for elevator falling

technical field

The invention belongs to the technical field of elevators, in particular to an energy-consuming buffer device for elevator falling.

Background technique

Elevator refers to the permanent transportation equipment that serves several specific floors in the building, and its car runs on at least two rigid rails that are perpendicular to the horizontal plane or at an inclination angle of less than 15° from the plumb line. Its working principle is: the two ends of the traction rope are respectively connected to the car and the counterweight, and are wound on the traction wheel and the guide wheel. The traction force generated by the friction of the pulley realizes the lifting movement of the car and the counterweight to achieve the purpose of transportation.

In recent years, with the continuous occurrence of elevator accidents, people pay more and more attention to the safety protection devices of elevators.

Especially for high-rise elevators, when the car runs to a higher floor, if the steel rope pulling the car breaks, the protective device during the car's fall is generally a safety gear, but there may be cases where the car guide rail breaks or the safety gear fails. If the situation occurs, the car will continue to accelerate and fall to the bottom pit. Even if the bottom pit is equipped with a buffer as the last protection measure, it will cause serious damage to the people and objects in the car. The protection device is improved.

When new elevators are produced, they generally have many deficiencies, such as braking performance, dynamic performance, etc., which are dangerous to test in the elevator test tower. Therefore, in the shaft of the elevator test tower, it is generally necessary to set up a fall buffer device, to avoid the secondary injury that may be caused by the elevator falling. At present, the cushioning effect of the elevator test tower fall buffer device on the market is poor, which cannot guarantee people's safety, and the buffer structure is single, and it is not possible to use multiple methods to buffer the falling elevator. Therefore, it is necessary to study a multi-mode, buffer Effective elevator fall buffer device.

Contents of the invention

In order to solve the above-mentioned existing problems, the present invention provides an energy-consuming buffer device for elevator falling. In the present invention, components such as a buffer plate, a high-strength spring, and a buffer sheet are arranged in the elevator shaft, and a high-strength spring is arranged at the bottom of the elevator shaft. Relying on the buffer plate, the buffer plate is connected with the high-strength spring arranged in the additional space through the connecting rod and the buffer plate slider. On the buffer plate, a buffer plate made of memory alloy is arranged, and friction rubber is arranged around the elevator shaft. Realize the purpose of elevator falling energy consumption buffer. The technical scheme that the present invention adopts is as follows:

An elevator falling energy consumption buffer device, the device includes elevator bottom rubber, buffer plates, high-strength springs, buffer sheets, the bottom of the elevator is provided with elevator bottom rubber, and the high-strength spring is arranged at the bottom of the elevator shaft. The upper part of the spring is provided with a buffer plate, and the buffer plate is provided with a buffer sheet, and the buffer sheet is a double semi-elliptical sheet structure, which deforms after being pressed.

Further, the rubber at the bottom of the elevator is semi-elliptical and attached to the bottom of the elevator.

Further, the main body of the buffer plate is a square steel plate, the four sides are respectively provided with connecting rods, the outside of the connecting rods is provided with buffer plate sliders, the width of the buffer plate sliders is greater than the width of the connecting rods, on the left and right sides of the front of the buffer plate There are buffer plate guide rails on both sides.

Further, the buffer sheet includes a double oval sheet, a buffer sheet connecting rod, and a buffer sheet slider. The double ellipse sheet is made of a high-strength memory alloy. The rod is hingedly connected with the buffer plate slide block, and the buffer plate slide block is placed in the buffer plate guide rail, and the quantity, position and shape of the two are matched.

Further, an additional space is provided on the lower end of the main body of the elevator shaft, and a high-strength spring is provided in it. The upper end of the high-strength spring is connected to the upper end of the additional space, and the lower end is connected to the buffer plate slider of the buffer plate. The additional space The shape and position of the connecting rod and the combination of the buffer plate slider are matched, and the buffer plate slider is placed in the additional space and can move up and down.

Further, the lower part of the elevator is provided with rubber around the elevator, and the rubber around the elevator is hemispherical and attached to the lower part of the elevator.

Further, friction rubber is provided around the lower part of the elevator shaft.

Further, the thickness of the friction rubber and the rubber around the elevator is just enough to dissipate energy by friction after they are in contact.

Advantage and effect of the present invention:

The present invention has multiple energy-consuming components, can consume relatively large elevator falling kinetic energy, requires less space for the device, has simple structure, high safety, better economic effect, and less harm to people in the elevator.

Description of drawings

Fig. 1 is the structural representation of elevator shaft of the present invention;

Fig. 2 is a structural representation of the present invention;

Fig. 3 is the structural representation of buffer plate of the present invention;

Fig. 4 is a structural schematic diagram of the buffer sheet of the present invention;

Fig. 5 is the structural representation of elevator shaft side wall of the present invention;

Fig. 6 is a schematic diagram of the relationship between the sliding block of the buffer plate and the additional space of the present invention.

In the figure: 1 is the elevator, 2 is the rubber at the bottom of the elevator, 3 is the rubber around the elevator, 4 is the buffer plate, 4-1 is the guide rail of the buffer plate, 4-2 is the connecting rod, 4-3 is the slider of the buffer plate, 5 is High-strength spring, 6 is a buffer plate, 6-1 is a double semi-elliptical plate, 6-2 is a buffer plate connecting rod, 6-3 is a buffer plate slide block, 7 is an additional space, 8 is a friction rubber, and 9 is an elevator shaft.

Detailed ways

The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

As shown in Figure 2, the present invention mainly is made up of elevator 1, buffer plate 4, high-strength spring 5, buffer sheet 6, additional space 7, elevator shaft 9.

As shown in Figure 2, the bottom of the elevator 1 is provided with an elevator bottom rubber 2, the cross section of the elevator bottom rubber 2 is semi-elliptical, attached to the bottom of the elevator 1, and the rubber 3 around the elevator is hemispherical, attached to the elevator 6-8 are evenly arranged on the lowermost part and each side of 1.

As shown in FIGS. 1 to 2 , several high-strength springs 5 are arranged at the bottom of the elevator shaft 9 , and a buffer plate 4 is supported on the top of the high-strength springs 5 .

As shown in Figure 3, the main body of the buffer plate 4 is a square steel plate, two connecting rods 4-2 are evenly arranged on the four sides, and a buffer plate slider 4-3 is arranged on the outside of each connecting rod 4-2. The width of the buffer plate slider 4-3 is greater than the width of the connecting rod 4-2, four buffer plate guide rails 4-1 are respectively arranged on the left and right sides of the front of the buffer plate 4, and buffer plates are arranged on the buffer plate 4 6.

As shown in Figure 4, the buffer sheet 6 is composed of a double semi-elliptical sheet 6-1, a buffer sheet connecting rod 6-2, and a buffer sheet slider 6-3. The double semi-elliptical sheet 6-1 is a high-strength memory alloy, double The semi-elliptical sheet 6-1 and the buffer sheet connecting rod 6-2 are hinged, the buffer sheet connecting rod 6-2 and the buffer sheet slider 6-3 are hinged, and the additional space 7 is based on the main body of the elevator shaft 9. A space opened in the concrete body, the top of the additional space 7 is provided with a high-strength spring 5, the bottom of the high-strength spring 5 is connected to the buffer plate slider 4, the shape of the additional space 7, and the connecting rod 4-2, buffer The shape of the combined body that plate slide block 4-3 forms is identical, and buffer plate slide block 4-3 is placed in the inside and left space.

The energy consumption buffer mode of the device is: when the elevator 1 falls due to a mechanical failure, the rubber 2 at the bottom of the elevator contacts the buffer sheet 6, and the double semi-elliptical sheet 6-1 is deformed by moving the buffer sheet slider 6-3 to both sides, Energy consumption buffering; the rubber 3 around the elevator is in contact with the friction rubber 8 for energy consumption buffering; the buffer plate 4 moves downward and passes through the lower high-strength spring 5 for energy consumption buffering; the buffer plate 4 drives the high-strength spring 5 in the additional space 7 downward Sports, energy consumption cushioning.

The thickness of the rubber 2 at the bottom of the elevator and the rubber 3 around the elevator should be just enough for frictional energy consumption after the two contact.

Example 1

An elevator falling energy consumption buffer device, said device includes elevator 1, elevator bottom rubber 2, elevator surrounding rubber 3, buffer plate 4, buffer plate guide rail 4-1, connecting rod 4-2, buffer plate slider 4-3 , high-strength spring 5, buffer sheet 6, double semi-elliptical sheet 6-1, buffer sheet connecting rod 6-2, buffer sheet slider 6-3, additional space 7, friction rubber 8, elevator shaft 9.

The bottom of the elevator 1 is provided with an elevator bottom rubber 2, which is semi-elliptical and pasted on the bottom of the elevator 1.

The bottom of the elevator shaft 9 is provided with multiple groups of high-strength springs 5, and a buffer plate 4 is welded on the top of the high-strength spring 5. The main body of the buffer plate 4 is a square steel plate, and two connecting rods 4-2 are respectively formed on the four sides. The outside of connecting rod 4-2 is shaped on a buffer plate slide block 4-3, and the width of buffer plate slide block 4-3 is greater than the width of connecting rod 4-2, is shaped on four buffer plates on the front left and right sides of buffer plate 4 Plate guide 4-1. The buffer plate 4 is provided with a buffer sheet 6, and the buffer sheet 6 includes a double oval sheet 6-1, a buffer sheet connecting rod 6-2, and a buffer sheet slider 6-3, and the double ellipse sheet 6-1 is High-strength memory alloy, four cushioning plate connecting rods 6-2 are respectively arranged on both sides of the double elliptical plate 6-1, and are hingedly connected with the double elliptical plate 6-1, and the other end of the buffering plate connecting rod 6-2 is hinged with a buffering plate The slider 6-3, the buffer plate slider 6-3 is placed in the buffer plate guide rail 4-1, the number, position and shape of the two match.

On the basis of the lower end of the main body of the elevator shaft 9, an additional space 7 is provided, in which a high-strength spring 5 is arranged. 3 are connected by welding, and the shape and position of the additional space 7 matches the combination formed by the connecting rod 4-2 and the buffer plate slider 4-3, and the buffer plate slider 4-3 is placed in the additional space 7 and can move up and down.

Seven rubbers 3 around the elevator are bonded to each side around the lower part of the elevator 1, and the rubbers 3 around the elevator are hemispherical.

The lower part of the elevator shaft 9 is bonded with a friction rubber 8 for one week. It is advisable that the thickness of the friction rubber 8 and the rubber 3 around the elevator is just enough to consume energy by friction after the two contact.

When the elevator falls due to mechanical failure, the rubber at the bottom of the elevator is in contact with the buffer plate for energy consumption and buffering; the spherical rubber is in contact with the friction rubber for energy consumption and buffering; the buffer plate moves downward, and the lower high-strength spring consumes energy for buffering; the buffer plate drives the additional The high-strength spring in the space moves downward to absorb energy and buffer. The invention has multiple energy-consuming components, which can consume a large amount of kinetic energy of the elevator falling. The space required by the device is small, the safety is high, and the economic effect is good.

Claims (8)

1. An elevator falling energy consumption buffer device, characterized in that: the device includes elevator bottom rubber (2), buffer plate (4), high-strength spring (5), buffer sheet (6), the elevator (1) The bottom of the elevator is provided with rubber (2) at the bottom of the elevator, the high-strength spring (5) is arranged at the bottom of the elevator shaft (9), and a buffer plate (4) is provided on the top of the high-strength spring (5), and the buffer plate (4 ) is provided with a buffer sheet (6), and the buffer sheet (6) is a double semi-elliptical sheet structure, which deforms after being compressed. 2. An elevator fall energy consumption buffer device according to claim 1, characterized in that: the elevator bottom rubber (2) is semi-elliptical and attached to the bottom of the elevator (1). 3. An elevator falling energy consumption buffer device according to claim 1, characterized in that: the main body of the buffer plate (4) is a square steel plate, and the four sides are respectively provided with connecting rods (4-2), and the connecting rods The outer side of (4-2) is provided with a buffer plate slider (4-3), the width of the buffer plate slider (4-3) is greater than the width of the connecting rod (4-2), on the left and right sides of the front of the buffer plate (4) The buffer plate guide rails (4-1) are formed on both sides. 4. An elevator falling energy consumption buffer device according to claim 3, characterized in that: the buffer sheet (6) includes a double oval sheet (6-1), a buffer sheet connecting rod (6-2), a buffer Slider (6-3), the double oval piece (6-1) is a high-strength memory alloy, and the two sides of the double oval piece (6-1) are hingedly connected with the buffer piece connecting rod (6-2). The plate connecting rod (6-2) is hingedly connected with the buffer plate slider (6-3), and the buffer plate slider (6-3) is placed in the buffer plate guide rail (4-1). The shape matches. 5. An elevator falling energy consumption buffer device according to claim 3, characterized in that: an additional space (7) is opened on the lower end of the main body of the elevator shaft (9), and a high-strength spring (5 ), the upper end of the high-strength spring (5) is connected to the upper end of the additional space (7), and the lower end is connected to the buffer plate slider (4-3) of the buffer plate (4), the shape, position and connection of the additional space (7) The combination of the rod (4-2) and the buffer plate slider (4-3) is matched, and the buffer plate slider (4-3) is placed in the additional space (7) and can move up and down. 6. An elevator fall energy consumption buffer device according to claim 1, characterized in that: the lower part of the elevator (1) is provided with rubber (3) around the elevator, and the rubber (3) around the elevator is hemispherical , attached to the lower part around the elevator (1). 7. An elevator fall energy consumption buffer device according to claim 6, characterized in that: friction rubber (8) is provided around the lower part of the elevator shaft (9). 8. An elevator falling energy-dissipating buffer device according to claim 7, characterized in that: the thickness of the friction rubber (8) and the rubber (3) around the elevator is just enough to frictionally dissipate energy after contact.