Heavy pressure over descending buffer elevator

Abstract

The present invention discloses a heavy-pressure descending buffer elevator, which includes a car arranged in an elevator shaft. A sliding rod, a slider and a buffer rod are arranged at the bottom of the car. A wedge block is installed on the side of the sliding rod. The slider is located on the side of the sliding rod and adjacent to the wedge block. The sliding direction of the slider is perpendicular to the sliding rod. Two buffer rods are coaxially hinged at the bottom of the car. One ends of the two buffer rods are respectively located on both sides of the slider, and buffer wheels are arranged at the other ends. Buffer blocks are arranged on the inner wall of the elevator shaft, and the buffer blocks gradually widen from top to bottom. The two buffer wheels are respectively located on both sides of the buffer blocks. Through reasonable structural design, the present invention can make the greater the gravity received by the elevator, the greater the buffering force, thereby reducing the descending height of the elevator, reducing the load of the system, and improving the use convenience and service life of the elevator.

Description

Technical Field

[0001] The present invention relates to an elevator, and more particularly to a heavy-pressure over-descending buffer elevator. Background Art

[0002] An elevator is an essential special equipment in production and life. The elevator realizes the lifting or lowering of personnel or goods by a motor pulling a suspension cable to lift and lower a car in an elevator shaft. Generally, when people enter or exit the elevator or load and unload goods, the elevator is only stabilized by the suspension cable. However, because the suspension cable is usually very long, a large elastic range will be accumulated at this length. When the elevator is heavily loaded, the elevator will descend too much distance, which will cause a height difference between the car and the floor. If you want to transport heavy objects out of the elevator, you need to overcome this high "threshold", which is time-consuming and laborious, and there are safety hazards. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a heavy-pressure over-descending buffer elevator. Through a reasonable structural design, the greater the gravity received by the elevator, the greater the buffering force, thereby reducing the descending height of the elevator, reducing the load of the system, and improving the use convenience and service life of the elevator.

[0004] To solve the above technical problem, the present invention provides a heavy-pressure over-descending buffer elevator, including a car arranged in an elevator shaft. A sliding rod, a slider and a buffer rod are arranged at the bottom of the car. A wedge block is installed on the side of the sliding rod. The slider is located on the side of the sliding rod and adjacent to the wedge block. The sliding direction of the slider is perpendicular to the sliding rod. Two of the buffer rods are coaxially hinged at the bottom of the car. One ends of the two buffer rods are respectively located on both sides of the slider, and the other ends are both provided with buffer wheels. A buffer block is arranged on the inner wall of the elevator shaft. The buffer block gradually widens from top to bottom. The two buffer wheels are respectively located on both sides of the buffer block.

[0005] In a preferred embodiment of the present invention, the buffer block further includes at least two widening amplitudes, and the widening amplitude at the top is smaller than that at the bottom.

[0006] In a preferred embodiment of the present invention, the buffer block further includes a first buffer portion and a second buffer portion. The included angle between the two side surfaces of the first buffer portion is 20-45°. The second buffer portion is continuously arranged at the end of the first buffer portion. The included angle between the two side surfaces of the second buffer portion is 90-135°.

[0007] In a preferred embodiment of the present invention, it further includes that the buffer rod includes a turntable, a front buffer rod I, a front buffer rod II, and a rear buffer rod. The turntables of the two buffer rods are coaxially hinged to the bottom of the car. The front buffer rod I is arranged on one side of the turntable, and the front buffer rod Is on the two turntables gradually move away from each other. The front buffer rod II is arranged at the end of the front buffer rod I, and the front buffer rod IIs on the two front buffer rods I gradually approach each other. The rear buffer rod is arranged on the other side of the turntable, and the rear buffer rods on the two turntables gradually move away from each other. The buffer wheel is arranged at the end of the rear buffer rod.

[0008] In a preferred embodiment of the present invention, it further includes that an elastic member is arranged on the outer side of the front buffer rod II.

[0009] In a preferred embodiment of the present invention, it further includes that a triangular head is arranged on the slider, and the tip of the triangular head is located between the two front buffer rods II.

[0010] In a preferred embodiment of the present invention, it further includes that a guiding surface is provided at the end of the slider opposite to the triangular head, and the guiding surface is located on the incoming side of the wedge block.

[0011] In a preferred embodiment of the present invention, it further includes that a holding surface parallel to its moving direction is provided on the wedge surface of the wedge block, and the holding surface abuts against the rear end of the slider.

[0012] In a preferred embodiment of the present invention, it further includes that a mounting plate and a rotating shaft are provided at the bottom of the car. The mounting plate covers the bottom of the buffer rod. The rotating shaft is located inside the mounting plate, and the buffer rod is hinged to the car through the rotating shaft.

[0013] In a preferred embodiment of the present invention, it further includes that a connecting plate is provided at the bottom of the car door of the car. A connecting rod is hinged to the connecting plate. The other end of the connecting rod is hinged to the end of the sliding rod. A chute is provided at the bottom of the car, and the sliding rod is slidably arranged in the chute.

[0014] Advantages of the present invention:

[0015] For the heavy-pressure over-drop buffer elevator of the present invention, after the car of the elevator reaches the corresponding floor, the sliding rod is moved to make the wedge block abut against the slider; the slider then inserts between the two buffer rods. The two buffer rods move away from each other at this end and approach each other at the other end, so that the buffer wheel clamps on the buffer block; within the elastic range of the buffer rod, the lower the height of the car, the tighter the buffer wheel clamps, and the better the buffering effect. Within the load-bearing range of the elevator, it can extremely well avoid the over-drop of the elevator, reduce the load on the suspension rope and the drive source, and improve the service life of the elevator; at the same time, using the buffer wheel and the buffer block can avoid hard contact and has a long service life. Description of the drawings

[0016] Figure 1 It is a front view schematic diagram of a heavy-pressure over-descending buffer elevator in a preferred embodiment of the present invention;

[0017] Figure 2 It is a bottom view schematic diagram of a heavy-pressure over-descending buffer elevator;

[0018] Figure 3 It is a sectional view schematic diagram in the direction of A-A;

[0019] Figure 4 It is a sectional view schematic diagram in the direction of B-B.

[0020] Description of reference numerals in the figure:

[0021] 10 - elevator shaft, 11 - slide rail, 20 - car, 21 - car door, 30 - connecting plate, 31 - connecting rod, 32 - sliding rod, 33 - chute, 34 - wedge block, 35 - holding surface, 40 - slider, 41 - triangular head, 42 - guiding surface, 50 - mounting plate, 51 - rotating shaft, 52 - turntable, 53 - front buffer rod 1, 54 - front buffer rod 2, 55 - rear buffer rod, 56 - buffer wheel, 57 - elastic member, 60 - buffer block, 61 - first buffer portion, 62 - second buffer portion. Specific implementation manners

[0022] The following further describes the present invention in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and be able to implement it, but the exemplified embodiments are not intended to limit the present invention.

[0023] Embodiment

[0024] The present invention discloses a heavy-pressure over-descending buffer elevator. Refer to Figures 1 to 4As shown in the figure, it includes a car 20 arranged in an elevator shaft 10. A sliding rod 32, a slider 40 and a buffer rod are arranged at the bottom of the car 20. A wedge block 34 is installed on the side of the sliding rod 32. The slider 40 is located on the side of the sliding rod 32 and adjacent to the wedge block 34. The sliding direction of the slider 40 is perpendicular to the sliding rod 32. Two buffer rods are coaxially hinged at the bottom of the car 20. One ends of the two buffer rods are respectively located on both sides of the slider 40, and buffer wheels 56 are arranged at the other ends. Buffer blocks 60 are arranged on the inner wall of the elevator shaft 10. The buffer blocks 60 gradually widen from top to bottom. The two buffer wheels 56 are respectively located on both sides of the buffer block 60. With the above optimized design, after the car 20 of the elevator reaches the corresponding floor, the sliding rod 32 is moved to make the wedge block 34 push against the slider 40; the slider 40 is then inserted between the two buffer rods, the two buffer rods move away from each other at this end and approach each other at the other end, so that the buffer wheels 56 clamp on the buffer block 60; within the elastic range of the buffer rods, the lower the height of the car 20, the tighter the buffer wheels 56 clamp, and the better the buffering effect. Within the load-bearing range of the elevator, it can effectively prevent the elevator from descending too much, reduce the load on the suspension ropes and the drive source, and improve the service life of the elevator; at the same time, the use of the buffer wheels 56 and the buffer blocks 60 can avoid hard contact and has a long service life.

[0025] The above buffer block 60 includes at least two widening amplitudes. The widening amplitude at the top is smaller than that at the bottom. The smaller widening amplitude at the top can be suitable for small loads; once the load exceeds a certain level, the larger widening amplitude at the bottom can increase the buffering force. The graded buffering can further improve the service life of the components.

[0026] Among them, the above buffer block 60 includes a first buffer part 61 and a second buffer part 62. The included angle between the two side faces of the first buffer part 61 is 20 - 45°. The second buffer part 62 is continuously arranged at the end of the first buffer part 61. The included angle between the two side faces of the second buffer part 62 is 90 - 135°.

[0027] The above-mentioned buffer rod includes a turntable 52, a front buffer rod 53, a front buffer rod 54, and a rear buffer rod 55. The turntables 52 of the two buffer rods are coaxially hinged to the bottom of the car 20. The front buffer rod 53 is arranged on one side of the turntable 52, and the front buffer rods 53 on the two turntables 52 gradually move away from each other. The front buffer rod 54 is arranged at the end of the front buffer rod 53, and the front buffer rods 54 on the two front buffer rods 53 gradually approach each other. The rear buffer rod 55 is arranged on the other side of the turntable 52, and the rear buffer rods 55 on the two turntables 52 gradually move away from each other. A buffer wheel 56 is arranged at the end of the rear buffer rod 55. When moving the sliding rod 32, the slider 40 will be inserted between the two front buffer rods 54, and the front buffer rods 54 will be clamped on the slider 40, improving the reliability; at the same time, when the slider 40 moves out, the two buffer wheels 56 will be separated by the buffer block 60 under the remaining gravity of the car 20, so that the car 20 can fall normally.

[0028] An elastic member 57 is arranged on the outer side of the above-mentioned front buffer rod 54. The elastic member 57 can make the two front buffer rods 54 tend to approach each other, improving the rebound speed and ensuring the stable operation of the elevator.

[0029] A triangular head 41 is arranged on the above-mentioned slider 40. The tip of the triangular head 41 is located between the two front buffer rods 54. The triangular head 41 can make it easier for the slider 40 to be inserted between the two front buffer rods 54, and when sliding out, it can make the distance between the two front buffer rods 54 as small as possible, thus saving space.

[0030] A guiding surface 42 is provided at the end of the above-mentioned slider 40 opposite to the triangular head 41. The guiding surface 42 is located on the incoming side of the wedge block 34. The guiding surface 42 can make the wedge block 34 better push against the rear end of the slider 40.

[0031] A holding surface 35 parallel to its moving direction is provided on the wedge surface of the above-mentioned wedge block 34. The holding surface 35 pushes against the rear end of the slider 40. The holding surface 35 can convert the force given by the car 20 into the force acting on the component itself, reducing the system burden of the moving parts.

[0032] A mounting plate 50 and a rotating shaft 51 are provided at the bottom of the above-mentioned car 20. The mounting plate 50 covers the bottom of the buffer rod. The rotating shaft 51 is located inside the mounting plate 50. The buffer rod is hinged to the car 20 through the rotating shaft 51. The mounting plate 50 can offset the vertical force received by the buffer rod, thus reducing the burden on the rotating shaft 51.

[0033] A connecting plate 30 is provided at the bottom of the car door 21 of the above-mentioned car 20. A connecting rod 31 is hinged on the connecting plate 30. The other end of the connecting rod 31 is hinged to the end of the sliding rod 32. A sliding groove 33 is provided at the bottom of the car 20. The sliding rod 32 is slidably arranged in the sliding groove 33. When the car door 21 is opened, the sliding rod 32 can be pulled to endow the elevator with a buffering function; when the car door 21 is closed, the sliding rod 32 can be pushed to unlock the elevator.

[0034] The above-described embodiments are only preferred embodiments given to fully illustrate the present invention, and the protection scope of the present invention is not limited thereto. Equivalent substitutions or transformations made by those skilled in the art on the basis of the present invention are all within the protection scope of the present invention. The protection scope of the present invention shall be subject to the claims.

Claims

1. A heavy-pressure descending buffer elevator, characterized in that: it includes a car arranged in an elevator shaft. A sliding rod, a slider and a buffer rod are arranged at the bottom of the car. A wedge block is installed on the side of the sliding rod. The slider is located on the side of the sliding rod and adjacent to the wedge block. The sliding direction of the slider is perpendicular to the sliding rod. Two of the buffer rods are coaxially hinged at the bottom of the car. One ends of the two buffer rods are respectively located on both sides of the slider, and buffer wheels are arranged at the other ends. A buffer block is arranged on the inner wall of the elevator shaft. The buffer block gradually widens from top to bottom. The two buffer wheels are respectively located on both sides of the buffer block; the buffer block includes at least two widening amplitudes, and the widening amplitude at the top is smaller than that at the bottom; a mounting plate and a rotating shaft are arranged at the bottom of the car. The mounting plate covers the bottom of the buffer rod. The rotating shaft is located in the mounting plate. The buffer rod is hinged to the car through the rotating shaft.

2. The heavy-pressure descending buffer elevator according to claim 1, characterized in that: the buffer block includes a first buffer part and a second buffer part. The included angle between the two side surfaces of the first buffer part is 20 - 45°. The second buffer part is continuously arranged at the end of the first buffer part. The included angle between the two side surfaces of the second buffer part is 90 - 135°.

3. The heavy-pressure descending buffer elevator according to claim 1, characterized in that: the buffer rod includes a turntable, a front buffer rod one, a front buffer rod two and a rear buffer rod. The turntables of the two buffer rods are coaxially hinged at the bottom of the car. The front buffer rod one is arranged on one side of the turntable, and the front buffer rods one on the two turntables gradually move away from each other. The front buffer rod two is arranged at the end of the front buffer rod one, and the front buffer rods two on the two front buffer rods one gradually approach each other. The rear buffer rod is arranged on the other side of the turntable, and the rear buffer rods on the two turntables gradually move away from each other. The buffer wheel is arranged at the end of the rear buffer rod.

4. The heavy-pressure descending buffer elevator according to claim 3, characterized in that: an elastic member is arranged on the outer side of the front buffer rod two.

5. The heavy-pressure descending buffer elevator according to claim 3, characterized in that: a triangular head is arranged on the slider, and the tip of the triangular head is located between the two front buffer rods two.

6. The heavy-pressure descending buffer elevator according to claim 5, characterized in that: a guiding surface is opened at the end of the slider opposite to the triangular head, and the guiding surface is located on the approaching side of the wedge block.

7. The heavy-pressure descending buffer elevator according to claim 6, characterized in that: a holding surface parallel to its moving direction is arranged on the wedge surface of the wedge block, and the holding surface abuts against the rear end of the slider.

8. The heavy-pressure descending buffer elevator according to claim 1, characterized in that: a connecting plate is arranged at the bottom of the car door of the car. A connecting rod is hinged to the connecting plate. The other end of the connecting rod is hinged to the end of the sliding rod. A sliding groove is arranged at the bottom of the car. The sliding rod is slidably arranged in the sliding groove.

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