Elevator car buffer device

Abstract

The utility model discloses an elevator car buffer device, including hoistway, the both sides of hoistway are fixedly installed with a plurality of guide rails, and the guide rail is slidably connected with a plurality of slide seat respectively, and the slide seat fixedly connects the top and bottom two end outer wall of car two sides respectively, and the bottom end fixed connection damper one end in hoistway, and the other end of damper slides through the rear end part fixed connection driven plate of mounting seat, and the both ends of driven plate are respectively fixedly connected hinged axle, and the hinged axle is respectively hinged the middle part of two cross links, and one end of two cross links is respectively hinged one end of lower link, and the other end of lower link is respectively hinged the both sides of mounting seat two ends, and mounting seat fixedly connects damper, and the other end of two cross links is respectively hinged one end of upper link, and the other end of upper link is respectively hinged the both sides of buffer plate two ends, and buffer plate is movably arranged at the top of driven plate, and the bottom both ends of buffer plate are respectively fixedly connected one end of buffer piece no.

Description

Technical Field

[0001] This utility model relates to the field of elevator car technology, specifically to an elevator car buffer device. Background Technology

[0002] Modern elevators typically use steel wire rope friction drive. The steel wire rope passes around the traction sheave, with each end connected to the car and the counterweight, respectively. The motor drives the traction sheave to raise and lower the car. Elevators are required to be safe and reliable, have high transport efficiency, accurate leveling, and comfortable ride. With the development of real estate, elevators have seen explosive growth. However, elevator falls and bottoming-out accidents still occur from time to time. Once a bottoming-out accident occurs, it can cause great harm to passengers and even endanger their lives.

[0003] Existing elevator fall prevention devices include speed governors, safety brakes, and buffer devices. Generally, the buffer device is mainly installed at the bottom of the elevator shaft, and multiple buffers work together to achieve the buffering function. However, the force-bearing area of ​​the existing buffers is relatively narrow, and when buffering the elevator car, a large impact force is still generated, resulting in poor buffering effect. Therefore, we propose an elevator car buffer device to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide an elevator car buffer device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an elevator car buffer device, comprising a shaft, wherein several guide rails are fixedly installed on both sides of the shaft, and several sliding blocks are slidably connected to the guide rails. The sliding blocks are fixedly connected to the top and bottom outer walls on both sides of the car. One end of a damper is fixedly connected to the bottom end of the shaft, and the other end of the damper slides through the rear end of a mounting base and is fixedly connected to a driven plate. Hinges are fixedly connected to the middle portions of both ends of the driven plate, and the hinges are respectively hinged to the middle portions of two cross links. One end of each of the two cross links is respectively hinged to one end of a lower link. The other end of the lower connecting rod is hinged to both sides of the mounting base, and the mounting base is fixedly connected to the damper. The other ends of the two cross connecting rods are hinged to one end of the upper connecting rod, and the other end of the upper connecting rod is hinged to both sides of the buffer plate. The buffer plate is movably mounted on the top of the driven plate. The bottom ends of the buffer plate are fixedly connected to one end of buffer component one, and the other end of buffer component one is fixedly connected to the bottom of the shaft. One side of the bottom of buffer component one is fixedly connected to one end of the connecting pipe, and the other end of the connecting pipe is fixedly connected to the bottom of buffer component two. The bottom end of buffer component two is fixedly connected to the bottom of the shaft.

[0006] Preferably, a spring is provided between the driven plate and the mounting base, and the spring is movably sleeved outside the damper.

[0007] Preferably, the cross links are arranged in an X-shape.

[0008] Preferably, the upper connecting rods on the same side are arranged symmetrically.

[0009] Preferably, the lower connecting rods on the same side are arranged symmetrically.

[0010] Preferably, the buffer component includes a movable rod, a piston, and a support cylinder. One end of the support cylinder is fixedly connected to the bottom wall inside the shaft, and the other end of the support cylinder is slidably sleeved with the movable rod. One end of the movable rod slides through the sliding holes opened on both sides of the driven plate, and the end of the movable rod is fixedly connected to the buffer plate. The other end of the movable rod is fixedly connected to the piston. The piston is slidably disposed inside the support cylinder, and the end of the connecting pipe is fixedly connected to one side of the bottom of the support cylinder.

[0011] Preferably, the second buffer component includes a second movable rod, a second piston, and a second support cylinder. One end of the second support cylinder is fixedly connected to the bottom wall inside the shaft, and the other end of the second support cylinder is slidably sleeved with the second movable rod. One end of the second movable rod is fixedly connected to the second piston, and the second piston is slidably disposed inside the second support cylinder. The second movable rod is located directly below the slide block, and the height of the second movable rod is higher than the height of the buffer plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are: by setting the buffer plate, the contact area with the bottom of the car is increased, thereby improving the buffering area of ​​the car. The buffer component one, buffer component two, and connecting pipe cooperate with each other to further improve the overall buffering performance, reduce the impact force of the car falling, and improve the buffering effect of the car. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of the well shaft of this utility model;

[0015] Figure 3 This is a cross-sectional structural diagram of the present invention.

[0016] In the diagram: 1. Hoistway; 2. Guide rail; 3. Slide seat; 4. Car; 5. Buffer plate; 6. Upper connecting rod; 7. Cross connecting rod; 8. Driven plate; 9. Hinge shaft; 10. Lower connecting rod; 11. Mounting seat; 12. Damper; 13. Buffer component one; 131. Movable rod one; 132. Piston one; 133. Support cylinder one; 14. Buffer component two; 141. Movable rod two; 142. Piston two; 143. Support cylinder two; 15. Connecting pipe; 16. Spring. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Example 1

[0019] Reference Figure 1 , 2 This is the first embodiment of the present invention, which provides an elevator car buffer device, including a shaft 1. Several guide rails 2 are fixedly installed on both sides of the shaft 1. Several sliding blocks 3 are slidably connected to the guide rails 2. The sliding blocks 3 are fixedly connected to the top and bottom outer walls of both sides of the car 4. One end of a damper 12 is fixedly connected to the bottom end of the shaft 1. The other end of the damper 12 slides through the rear end of the mounting base 11 and is fixedly connected to a driven plate 8. Hinges 9 are fixedly connected to the middle portions of both ends of the driven plate 8. The hinges 9 are hinged to the middle portions of two cross links 7. One end of each cross link 7 is hinged to one end of a lower link 10. The lower link 10... The other end is hinged to both sides of the mounting base 11. The mounting base 11 is fixedly connected to the damper 12. The other end of the two cross links 7 is hinged to one end of the upper link 6. The other end of the upper link 6 is hinged to both sides of the buffer plate 5. The buffer plate 5 is movably mounted on the top of the driven plate 8. The bottom ends of the buffer plate 5 are fixedly connected to one end of the buffer component 13. The other end of the buffer component 13 is fixedly connected to the bottom of the shaft 1. One side of the bottom of the buffer component 13 is fixedly connected to one end of the connecting pipe 15. The other end of the connecting pipe 15 is fixedly connected to the bottom of the buffer component 2 14. The bottom end of the buffer component 2 14 is fixedly connected to the bottom of the shaft 1.

[0020] When the car 4 falls, the slide block 3 first contacts the movable rod 141 of the buffer component 2. The impact force of the fall causes the movable rod 141 to move downward. The movable rod 141 drives the fixed piston 142 to move downward. The piston 142 compresses the gas or oil in the support cylinder 143, and then enters the support cylinder 133 of the buffer component 13 through the connecting pipe 15. The pressure in the support cylinder 133 increases, which in turn causes the piston 132 in the buffer component 13 to move upward. The piston 132 drives the fixed piston 142 to move downward. The movable rod 131 is raised, which in turn raises the buffer plate 5 fixed at the end. The buffer plate 5 then supports and buffers the falling car 4. The surface area of ​​the buffer plate 5 is the same as the bottom surface area of ​​the car 4, which increases the contact area and improves the force-bearing area of ​​the buffering effect. The buffer plate 5, together with the hinged upper connecting rod 6, as well as the cross connecting rod 7, driven plate 8, lower connecting rod 10 and other components, and with the action of the damper 12 and spring 16, further reduces the impact force of the falling car 4.

[0021] Example 2

[0022] Reference Figure 1-3 This is the second embodiment of the present invention, which is based on the previous embodiment. Specifically, a spring 16 is provided between the driven plate 8 and the mounting base 11, and the spring 16 is movably sleeved outside the damper 12. The surface area of ​​the buffer plate 5 is the same as the surface area of ​​the bottom of the car 4, thereby increasing the contact area and improving the force-bearing area of ​​the buffering effect.

[0023] Specifically, the cross links are arranged in an X-shape.

[0024] Specifically, the upper connecting rod 6 on the same side is symmetrically arranged.

[0025] Specifically, the lower connecting rods 10 on the same side are symmetrically arranged.

[0026] The buffer plate 5, together with the hinged upper connecting rod 6, as well as the cross connecting rod 7, driven plate 8, lower connecting rod 10 and other components, forms a linkage lifting mechanism. When the buffer component 14 is subjected to a downward impact, the buffer plate 5 is raised to support and buffer the car 4.

[0027] Specifically, the buffer component 13 includes a movable rod 131, a piston 132, and a support cylinder 133. One end of the support cylinder 133 is fixedly connected to the bottom wall inside the shaft 1, and the other end of the support cylinder 133 is slidably sleeved on the movable rod 131. One end of the movable rod 131 slides through the sliding holes opened on both sides of the driven plate 8, and the end of the movable rod 131 is fixedly connected to the buffer plate 5. The other end of the movable rod 131 is fixedly connected to the piston 132. The piston 132 is slidably disposed inside the support cylinder 133, and the bottom side of the support cylinder 133 is fixedly connected to the end of the connecting pipe 15.

[0028] Specifically, the second buffer component 14 includes a movable rod 141, a piston 142, and a support cylinder 143. One end of the support cylinder 143 is fixedly connected to the bottom wall inside the shaft 1, and the other end of the support cylinder 143 is slidably sleeved with the movable rod 141. One end of the movable rod 141 is fixedly connected to the piston 142, and the piston 142 is slidably disposed inside the support cylinder 143. The movable rod 141 is located directly below the slide block 3 and its height is higher than that of the buffer plate 5. The bottom side of the support cylinder 143 is fixedly connected to the end of the connecting pipe 15.

[0029] The second support cylinder 143 of the second buffer component 14 is filled with gas or oil, and similarly, the first support cylinder 133 of the first buffer component 13 is also filled with gas or oil. With the connection pipe 15, the first support cylinder 133 and the second support cylinder 143 are interconnected, achieving internal balance. Therefore, when the car 4 falls, the slide block 3 first contacts the movable rod 141 of the second buffer component 14. The impact of the fall causes the movable rod 141 to move downwards, and the movable rod 141 drives the fixed piston 2. 142 moves downward, piston 142 compresses the gas or oil in support cylinder 143, and then enters the support cylinder 133 of buffer component 13 through connecting pipe 15. The pressure in support cylinder 133 increases, which causes piston 132 in buffer component 13 to move upward. Piston 132 drives the fixed movable rod 131 to rise, and movable rod 131 drives the buffer plate 5 fixed at the end to rise. Buffer plate 5 then supports and buffers the falling car 4.

[0030] Example 3

[0031] Reference Figure 1-3This is the third embodiment of the present invention. Based on the above two embodiments, the second support cylinder 143 of the second buffer 14 is filled with gas or oil. Similarly, the first support cylinder 133 of the first buffer 13 is also filled with gas or oil. With the help of the connecting pipe 15, the first support cylinder 133 and the second support cylinder 143 are interconnected to achieve internal balance. When the car 4 falls, the slide 3 first contacts the movable rod 141 of the second buffer 14. The impact force of the fall causes the movable rod 141 to move downward. The movable rod 141 drives the fixed piston 142 to move downward. The piston 142 compresses the gas or oil in the second support cylinder 143, and then enters through the connecting pipe 15. The pressure inside the support cylinder 133 of the buffer component 13 increases, causing the piston 132 inside the buffer component 13 to move upward. The piston 132 drives the fixed movable rod 131 to rise, and the movable rod 131 drives the buffer plate 5 fixed at the end to rise. The buffer plate 5 then supports and buffers the falling car 4. The surface area of ​​the buffer plate 5 is the same as the bottom surface area of ​​the car 4, which increases the contact area and improves the force-bearing area of ​​the buffering effect. The buffer plate 5, together with the hinged upper connecting rod 6, as well as the cross connecting rod 7, driven plate 8, lower connecting rod 10 and other components, and with the action of the damper 12 and spring 16, further reduces the impact force of the falling car 4.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An elevator car buffer device, comprising a shaft (1), wherein a plurality of guide rails (2) are fixedly installed on both sides of the shaft (1), and a plurality of slide blocks (3) are slidably connected to the guide rails (2), wherein the slide blocks (3) are fixedly connected to the top and bottom outer walls of both sides of the car (4), characterized in that: One end of the damper (12) is fixedly connected to the bottom of the well (1). The other end of the damper (12) slides through the rear end of the mounting base (11) and is fixedly connected to the driven plate (8). The middle parts of both ends of the driven plate (8) are respectively fixedly connected to the hinge shafts (9). The hinge shafts (9) are respectively hinged to the middle parts of two cross links (7). One end of the two cross links (7) is respectively hinged to one end of the lower link (10). The other end of the lower link (10) is respectively hinged to both sides of the mounting base (11). The mounting base (11) is fixedly connected to the damper (12). The other ends of the two cross links (7) One end of the upper connecting rod (6) is hinged to the other end of the upper connecting rod (6), and the other end of the upper connecting rod (6) is hinged to both sides of the buffer plate (5). The buffer plate (5) is movably mounted on the top of the driven plate (8). The bottom ends of the buffer plate (5) are fixedly connected to one end of the first buffer component (13). The other end of the first buffer component (13) is fixedly connected to the bottom of the well (1). One side of the bottom of the first buffer component (13) is fixedly connected to one end of the connecting pipe (15). The other end of the connecting pipe (15) is fixedly connected to the bottom of the second buffer component (14). The bottom end of the second buffer component (14) is fixedly connected to the bottom of the well (1).

2. The elevator car buffer device according to claim 1, characterized in that: A spring (16) is provided between the driven plate (8) and the mounting base (11), and the spring (16) is movably sleeved outside the damper (12).

3. The elevator car buffer device according to claim 1, characterized in that: The cross links (7) are arranged in an X-shape.

4. The elevator car buffer device according to claim 1, characterized in that: The upper connecting rod (6) on the same side is symmetrically arranged.

5. The elevator car buffer device according to claim 1, characterized in that: The lower connecting rod (10) on the same side is symmetrically arranged.

6. The elevator car buffer device according to claim 1, characterized in that: The buffer component 1 (13) includes a movable rod 1 (131), a piston 1 (132), and a support cylinder 1 (133). One end of the support cylinder 1 (133) is fixedly connected to the bottom wall inside the well (1), and the other end of the support cylinder 1 (133) is slidably sleeved on the movable rod 1 (131). One end of the movable rod 1 (131) slides through the sliding holes opened on both sides of the driven plate (8), and the end of the movable rod 1 (131) is fixedly connected to the buffer plate (5). The other end of the movable rod 1 (131) is fixedly connected to the piston 1 (132). The piston 1 (132) is slidably disposed inside the support cylinder 1 (133), and the bottom side of the support cylinder 1 (133) is fixedly connected to the end of the connecting pipe (15).

7. The elevator car buffer device according to claim 1, characterized in that: The second buffer component (14) includes a second movable rod (141), a second piston (142), and a second support cylinder (143). One end of the second support cylinder (143) is fixedly connected to the bottom wall inside the well (1), and the other end of the second support cylinder (143) is slidably sleeved with the second movable rod (141). One end of the second movable rod (141) is fixedly connected to the second piston (142). The second piston (142) is slidably disposed inside the second support cylinder (143). The second movable rod (141) is located directly below the slide block (3), and the height of the second movable rod (141) is higher than the height of the buffer plate (5).

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