CN210710221U - A new type of elevator buffer - Google Patents

Abstract

The utility model provides a novel elevator buffer. It solves the problems that the strength of the existing buffer is not large enough, the safety is not high enough, and the buffer is easy to cause secondary damage to the relatively fragile elevator structure. The utility model uses the support plate and the spring sleeved on the support column to buffer the elevator car for the first time. The support plate moves downward under the pressure of the elevator car and contacts the pressure column to drive the pressure column to move downward. The hydraulic oil in the cavity is compressed, the pressure accumulating sponge in the hydraulic oil absorbs the pressure and shrinks to realize the second buffer, and the pressure is transmitted to the top plate through the hydraulic pressure to push the top plate down and expose the first connection hole on the side wall of the installation groove. The hydraulic oil is transported into the oil storage tank through the first connecting hole to realize the third buffering of the elevator car, and the pressure of the elevator car can be reasonably absorbed through the multi-stage buffering, so as to avoid secondary damage to the relatively fragile elevator structure. Injury, better buffer performance and higher safety.

Description

A new type of elevator buffer

technical field

The utility model belongs to the technical field of elevators, in particular to a novel elevator buffer.

Background technique

With the rapid development of high-rise buildings in my country, elevators, as an effective means of transportation, are becoming more and more widely used. However, in recent years, elevator accidents have often occurred, causing serious injuries to personnel. One of the main reasons is that the elevator buffer device is not designed reasonably enough. When an accident occurs in the elevator car, the car cannot be controlled and quickly falls to the bottom pit of the elevator shaft. If the buffer device is not reasonable enough, it will cause a safety accident.

At present, the buffers used in elevators are generally of two structures: spring and hydraulic. The spring buffer absorbs impact energy poorly, has a large rebound force, and is easy to break. Although the hydraulic buffer has a good absorption effect, it will produce a large amount of shock during the elevator falling process. Impact force, the strength of this type of buffer is not large enough, the safety is not high enough, and the buffer is easy to cause secondary damage to the relatively fragile elevator structure. Both of these two buffering methods have major problems and insufficient safety. There is room for improvement in technology.

Utility model content

The utility model provides a novel elevator buffer with better buffering effect in view of the above deficiencies.

A novel elevator buffer, comprising a base fixedly arranged on the foundation, a support plate arranged at the upper end of the base, and a buffer mechanism arranged in the base, characterized in that the end face of the support plate facing the base is fixedly provided with a plurality of A support column, a plurality of through holes for installing the support column are opened on the upper end surface of the base, a buffer spring is sleeved on the outer circumference of the support column, and one end of the buffer spring is attached to the lower end surface of the support plate, The other end is fitted with the upper end surface of the base, a cavity is opened inside the base, the buffer mechanism is located in the cavity, and a guide hole connected to the cavity is opened on the upper end surface of the base. A pressure column is arranged inside, one end of the pressure column is located in the above-mentioned cavity and is fixedly connected with the buffer mechanism, and the other end of the pressure column is located outside the base through the guide hole, and the buffer mechanism includes a pressure plate arranged in the cavity, The pressure column is fixedly arranged on the upper end surface of the pressure plate, the cavity is filled with hydraulic oil, an installation groove is opened at the bottom of the cavity, and a fixing rod is fixedly arranged at the bottom of the installation groove. A movable column is sleeved on the fixed rod, a top plate is fixedly arranged on the upper end of the movable column, a return spring is sleeved on the outer periphery of the movable column, one end of the return spring is fitted with the lower end surface of the top plate, and the other One end is fitted with the bottom surface of the installation slot.

Preferably, an oil storage tank is opened on the side wall of the base, and a second connection hole connected to the installation groove is opened at the bottom of the oil storage tank. The diameter of the oil storage tank is larger than the diameter of the second connection hole, so A spherical first stopper is arranged in the oil storage tank, the first stopper is located at the outlet where the second connection hole communicates with the oil storage tank, and the diameter of the first stopper is larger than the diameter of the second connection hole and smaller than the diameter of the sump.

Preferably, the connection between the second connection hole and the installation groove is located on the inner wall where the outer wall of the top plate fits with the installation groove.

Preferably, a first connecting hole connected to the cavity is opened on the side wall of the oil storage tank, and a limiting hole with the same axis is opened in the first connecting hole, and the diameter of the limiting hole is larger than The diameter of the first connecting hole, a spherical second block is arranged in the limiting hole, and the diameter of the block is larger than the diameter of the first connecting hole.

Preferably, the second connection hole includes a first horizontal pipe, a second horizontal pipe, a first vertical pipe and a second vertical pipe, one end of the first horizontal pipe is connected to the installation groove, and the other end is connected to the first vertical pipe The upper end of the first vertical pipe is connected with one end of the second horizontal pipe, the other end of the second horizontal pipe is connected with the lower end of the second vertical pipe, and the upper end of the second vertical pipe is connected with the oil storage tank.

Preferably, the cavity is filled with pressure accumulating sponges.

Preferably, the diameter of the movable column is larger than the diameter of the fixed rod, the end of the movable column facing the fixed rod is provided with a guide groove, the diameter of the guide groove is the same as the diameter of the fixed rod, and the diameter of the top plate is the same as that of the installation rod. The diameters of the grooves are the same, and the upper end surface of the top plate and the bottom surface of the cavity are located on the same plane.

Preferably, a ring of rubber is sleeved on the outer periphery of the pressing plate, and the diameter of the rubber is the same as the diameter of the cavity.

Preferably, there are three supporting columns and three through holes respectively, and the supporting columns and the through holes are in one-to-one correspondence.

Preferably, the upper end of the pressure column is located between the base and the support plate, and the upper end surface of the pressure column does not fit with the lower end surface of the support plate.

The utility model can better buffer the elevator car that falls rapidly, and the elevator car is buffered for the first time through the support plate and the spring sleeved on the support column, and the support plate moves downward under the pressure of the elevator car. And contact with the pressure column to drive the pressure column to move down, compress the hydraulic oil in the cavity, the pressure accumulating sponge in the hydraulic oil absorbs the pressure and shrinks to realize the second buffer, and the pressure is transmitted to the top plate through the hydraulic pressure to push the top plate down Move and expose the first connecting hole on the side wall of the installation groove, and the hydraulic oil is transported into the oil storage tank through the first connecting hole to realize the third buffering of the elevator car, and the pressure of the elevator car is adjusted through the multi-stage buffering. Reasonable absorption to avoid secondary damage to the relatively fragile elevator structure, better buffer performance and higher safety.

Description of drawings

Fig. 1 is the overall structure view of the present utility model;

Fig. 2 is the sectional view of the present utility model;

FIG. 3 is an enlarged view of A in FIG. 2 .

In the figure: 1, base; 2, support plate; 3, buffer mechanism; 4, support column; 5, through hole; 6, buffer spring; 7, cavity; 8, guide hole; 9, pressure column; 10, pressure plate ;11, hydraulic oil; 12, installation groove; 13, fixed rod; 14, movable column; 15, return spring; 16, oil storage tank; 17, first connection hole; 18, first stop; 19, second connection hole; 20, limit hole; 21, second stopper; 22, first horizontal pipe; 23, second horizontal pipe; 24, first vertical pipe; 25, second vertical pipe; 26, pressure accumulating sponge; 27 , Guide groove; 28, rubber.

Detailed ways

The following are specific embodiments of the present utility model combined with the accompanying drawings to further describe the technical solutions of the present utility model, but the present utility model is not limited to these embodiments.

As shown in FIG. 1, a novel elevator buffer includes a base 1 fixedly arranged on the foundation, a support plate 2 arranged at the upper end of the base 1 and a buffer mechanism 3 arranged in the base 1, the support plate 2 facing the base A plurality of support columns 4 are fixedly arranged on the end surface of the base 1, and a plurality of through holes 5 for installing the support columns 4 are opened on the upper end surface of the base 1. The outer circumference of the support column 4 is sleeved with a buffer spring 6, One end of the buffer spring 6 is attached to the lower end surface of the support plate 2, and the other end is attached to the upper end surface of the base 1. The support columns 4 and the through holes 5 are respectively provided with three. The holes 5 are in one-to-one correspondence. The elevator car is buffered for the first time by the support plate 2 and the springs sleeved on the support column 4, and then the elevator car is buffered by the buffer mechanism 3 arranged in the base 1 for the subsequent buffering. Evenly absorb the impact force of the elevator car, prevent the relatively fragile buffer from being damaged due to excessive impact force, and ensure the maximum buffer effect of the buffer.

As shown in FIGS. 2 and 3 , a cavity 7 is opened inside the base 1 , the cavity 7 is filled with pressure accumulating sponge 26 , the buffer mechanism 3 is located in the cavity 7 , and the upper end surface of the base 1 is There is a guide hole 8 connected to the cavity 7, and a pressure column 9 is arranged in the guide hole 8. One end of the pressure column 9 is located in the above-mentioned cavity 7 and is fixedly connected with the buffer mechanism 3, and the other side of the pressure column 9 is fixed. One end is located outside the base 1 through the guide hole 8 , the buffer mechanism 3 includes a pressure plate 10 arranged in the cavity 7 , the pressure column 9 is fixedly arranged on the upper end surface of the pressure plate 10 , and the inside of the cavity 7 is clothed When full of hydraulic oil 11, a mounting groove 12 is opened at the bottom of the cavity 7, a fixing rod 13 is fixedly arranged at the bottom of the mounting groove 12, and a movable column 14 is sleeved on the fixing rod 13. The upper end of the movable column 14 is fixedly provided with a top plate, the outer periphery of the movable column 14 is sleeved with a return spring 15, one end of the return spring 15 is attached to the lower end surface of the top plate, and the other end is attached to the bottom surface of the installation slot 12. combined settings.

An oil storage tank 16 is formed on the side wall of the base 1 , and a second connection hole 19 connected to the installation groove 12 is formed at the bottom of the oil storage tank 16 . The diameter of the oil storage tank 16 is larger than that of the second connection hole 19 The oil storage tank 16 is provided with a spherical first stopper 18, the first stopper 18 is located at the outlet where the second connection hole 19 communicates with the oil storage tank 16, and the first stopper 18 The diameter is larger than the diameter of the second connecting hole 19 and smaller than the diameter of the oil storage tank 16 .

The connection between the second connection hole 19 and the installation groove 12 is located on the inner wall where the outer wall of the top plate fits with the installation groove 12 .

A first connecting hole 17 connected to the cavity 7 is opened on the side wall of the oil storage tank 16 , and a limiting hole 20 with the same axis is opened in the first connecting hole 17 . The limiting hole 20 The diameter of the first connecting hole 17 is larger than that of the first connecting hole 17 , a spherical second block 21 is arranged in the limiting hole 20 , and the diameter of the block is larger than the diameter of the first connecting hole 17 .

The elevator car is in contact with the support plate 2 when it falls, and the elevator car is buffered for the first time by the support plate 2 and the spring set on the support column 4. The support plate 2 moves down under the pressure of the elevator car and is After a certain distance, the contact with the pressure column 9 drives the pressure column 9 to move downward, compressing the hydraulic oil 11 in the cavity 7, and the pressure accumulating sponge 26 in the hydraulic oil 11 absorbs the pressure and contracts to realize the second buffer, and the pressure passes through the hydraulic pressure. The first connecting hole 17 on the side wall of the installation groove 12 is exposed, and the hydraulic oil 11 is transported into the oil storage tank 16 through the first connecting hole 17 to realize the third buffering of the elevator car. .

The second connecting hole 19 includes a first horizontal pipe 22, a second horizontal pipe 23, a first vertical pipe 24 and a second vertical pipe 25. One end of the first horizontal pipe 22 is connected to the installation groove 12, and the other end is The upper end of the first vertical pipe 24 is communicated with, the lower end of the first vertical pipe 24 is communicated with one end of the second horizontal pipe 23, and the other end of the second horizontal pipe 23 is communicated with the lower end of the second vertical pipe 25. The upper end of the standpipe 25 communicates with the oil sump 16 . The flow path of the hydraulic oil 11 is greatly extended through the second connection hole 19 formed by multiple sections, and the buffering effect is improved.

The diameter of the movable column 14 is larger than the diameter of the fixed rod 13 , and a guide groove 27 is opened at one end of the movable column 14 toward the fixed rod 13 . The diameter of the guide groove 27 is the same as the diameter of the fixed rod 13 . The diameter is the same as the diameter of the installation groove 12 , and the upper end surface of the top plate and the bottom surface of the cavity 7 are located on the same plane. The moving range of the movable column 14 is restricted by the guide groove 27 formed on the movable column 14 .

A ring of rubber 28 is sleeved on the outer periphery of the pressing plate 10 , and the diameter of the rubber 28 is the same as that of the cavity 7 . This ensures the tightness of the pressing plate 10 during use, and prevents the hydraulic oil 11 in the cavity 7 from leaking, resulting in a significant reduction in the buffering effect.

It should be understood that in the claims and descriptions of the present invention, all "including..." should be understood as an open-ended meaning, that is, its meaning is equivalent to "at least contains...", and should not be understood as a closed-ended meaning , i.e. its meaning should not be read as "contains only...".

The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art of the present invention can make various modifications or supplements to the described specific embodiments or replace them in similar ways, but will not deviate from the spirit of the present invention or go beyond the appended claims the defined range.

Claims (10)

1. A novel elevator buffer comprises a base (1) fixedly arranged on a foundation, a supporting plate (2) arranged at the upper end of the base (1) and a buffer mechanism (3) arranged in the base (1), and is characterized in that a plurality of supporting columns (4) are fixedly arranged on the end surface of the supporting plate (2) facing the base (1), a plurality of through holes (5) used for installing the supporting columns (4) are formed in the upper end surface of the base (1), a buffer spring (6) is sleeved on the periphery of each supporting column (4), one end of each buffer spring (6) is attached to the lower end surface of the supporting plate (2), the other end of each buffer spring is attached to the upper end surface of the base (1), a cavity (7) is formed in the base (1), the buffer mechanism (3) is positioned in the cavity (7), a guide hole (8) communicated with the cavity (7) is formed in the upper end surface of the base (1), a pressure column (9) is arranged in the guide hole (8), one end of the pressure column (9) is positioned in the cavity (7) and fixedly connected with the buffer mechanism (3), the other end of the pressure column (9) penetrates through the guide hole (8) and is positioned outside the base (1), the buffer mechanism (3) comprises a pressing plate (10) arranged in the cavity (7), the pressure column (9) is fixedly arranged on the upper end face of the pressing plate (10), hydraulic oil (11) is fully distributed in the cavity (7), a mounting groove (12) is formed in the bottom of the cavity (7), a fixing rod (13) is fixedly arranged at the bottom of the mounting groove (12), a movable column (14) is sleeved on the fixing rod (13), a top plate is fixedly arranged at the upper end of the movable column (14), and a reset spring (15) is sleeved on the periphery of the movable column (14), one end of the reset spring (15) is attached to the lower end face of the top plate, and the other end of the reset spring is attached to the bottom face of the mounting groove (12).

2. The novel elevator buffer according to claim 1, wherein the sidewall of the base (1) is formed with an oil reservoir (16), the bottom of the oil reservoir (16) is formed with a second connecting hole (19) communicated to the mounting groove (12), the diameter of the oil reservoir (16) is larger than that of the second connecting hole (19), a spherical first stopper (18) is disposed in the oil reservoir (16), the first stopper (18) is disposed at the outlet of the second connecting hole (19) communicated with the oil reservoir (16), and the diameter of the first stopper (18) is larger than that of the second connecting hole (19) and smaller than that of the oil reservoir (16).

3. The novel elevator buffer of claim 2, wherein the connection between the second connection hole (19) and the mounting groove (12) is located on the inner wall of the top plate where the outer wall of the top plate is attached to the mounting groove (12).

4. The novel elevator buffer according to claim 2, wherein the oil sump (16) has a first connecting hole (17) formed in a side wall thereof and connected to the cavity (7), the first connecting hole (17) has a limiting hole (20) formed therein, the limiting hole (20) has a diameter larger than that of the first connecting hole (17), the limiting hole (20) has a spherical second stopper (21) formed therein, and the diameter of the stopper is larger than that of the first connecting hole (17).

5. The novel elevator buffer according to claim 4, wherein the second connecting hole (19) comprises a first horizontal pipe (22), a second horizontal pipe (23), a first vertical pipe (24) and a second vertical pipe (25), one end of the first horizontal pipe (22) is communicated to the mounting groove (12), the other end of the first horizontal pipe is communicated with the upper end of the first vertical pipe (24), the lower end of the first vertical pipe (24) is communicated with one end of the second horizontal pipe (23), the other end of the second horizontal pipe (23) is communicated with the lower end of the second vertical pipe (25), and the upper end of the second vertical pipe (25) is communicated with the oil storage tank (16).

6. A new type of elevator buffer according to claim 1, characterized by the fact that the cavity (7) is filled with pressure-accumulating sponge (26).

7. The novel elevator buffer as claimed in claim 1, wherein the diameter of the movable column (14) is larger than that of the fixed rod (13), a guide groove (27) is formed in one end of the movable column (14) facing the fixed rod (13), the diameter of the guide groove (27) is the same as that of the fixed rod (13), the diameter of the top plate is the same as that of the mounting groove (12), and the upper end surface of the top plate and the bottom surface of the cavity (7) are located on the same plane.

8. The novel elevator buffer according to claim 1, characterized in that the periphery of the pressure plate (10) is sleeved with a ring of rubber (28), and the diameter of the rubber (28) is the same as the diameter of the cavity (7).

9. The novel elevator buffer according to claim 1, wherein there are three support columns (4) and three through holes (5), and the support columns (4) correspond to the through holes (5) one by one.

10. The novel elevator buffer according to claim 1, characterized in that the upper end of the pressure column (9) is located between the base (1) and the support plate (2) and the upper end face of the pressure column (9) does not fit the lower end face of the support plate (2).

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