Novel anti-falling mechanism of elevator

Abstract

The utility model relates to the technical field of elevators, and discloses a novel elevator anti-falling mechanism which comprises a front supporting pipe and a rear supporting pipe, a plurality of supporting blocks are fixedly connected between the two supporting pipes from top to bottom, the left side surfaces of the supporting blocks are jointly and fixedly connected with a supporting plate, and the left side surfaces of the supporting pipes are fixedly connected with sliding rails. The exteriors of the front sliding rail and the rear sliding rail are jointly connected with a sliding plate in a sliding mode. A clamping plate is fixedly connected to the surface of the left side of the supporting plate, and an anti-falling piece is arranged at the upper end of the sliding plate. According to the anti-falling device, the anti-falling piece is arranged, the clamping rod in the anti-falling piece is fixed to the driving equipment through the chain or the rope, in the normal operation process, the clamping rod and the clamping plate cannot be clamped, when the chain or the rope is broken, the upper end of the clamping rod is close to the vertical plate, the lower end of the clamping rod is close to and attached to the clamping plate, and the anti-falling function is achieved; when the attraction mechanism breaks the chain or the rope, the upper end of the clamping rod gets close to the rapid vertical plate, and the lower end of the clamping rod gets close to and fits the clamping plate rapidly.

Description

Technical Field

[0001] This utility model relates to the field of elevator technology, specifically a novel elevator anti-fall mechanism. Background Technology

[0002] A lifting platform is a type of lifting machinery that vertically transports people or goods. It also refers to equipment used for vertical transport in logistics systems such as factories and automated warehouses. Lifting platforms are often equipped with various planar conveying devices as connecting devices for conveying lines at different heights. They are generally hydraulically driven, hence the name hydraulic lifting platform. In addition to transporting goods at different heights, they are widely used for high-altitude installation, maintenance, and other operations. When a lifting platform suddenly malfunctions, it is very easy for it to fall, which will threaten the lives of workers and cause serious damage to the machine.

[0003] Chinese patent discloses a fall prevention device for elevators (publication number CN112079279A). The patent technology includes a first locking block, a bearing plate, a first hydraulic cylinder, a first piston rod, a moving block, a second locking block, a hoisting rope, and a tension sensor. After the hoisting rope lifts the bearing plate, the tension sensor starts to work. When the hoisting rope breaks accidentally, the tension value detected by the corresponding tension sensor is zero. At this time, the moving block moves under the extension of the first piston rod, and the second locking block moves accordingly and engages with the first locking block, so as to fix the bearing plate in time and prevent the bearing plate from tilting or falling.

[0004] However, it has certain drawbacks: it relies on electrically driven components such as the first hydraulic cylinder and tension sensor, which requires the system to have a stable power supply. Once the power is interrupted or malfunctions, the entire fall protection mechanism will fail. Secondly, these electrical components are at risk of malfunction or false alarms, which may cause the fall protection mechanism to fail to respond in a timely manner. Therefore, it requires frequent debugging and maintenance by staff, which is time-consuming and labor-intensive. Utility Model Content

[0005] The purpose of this utility model is to provide a new type of elevator anti-fall mechanism to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A novel anti-fall mechanism for a lift includes two support tubes, front and rear, with multiple support blocks fixedly connected from top to bottom between the two support tubes. A support plate is fixedly connected to the left side surface of the multiple support blocks. A slide rail is fixedly connected to the left side surface of the support tubes, and a sliding plate is slidably connected to the outside of the two slide rails.

[0008] A clamping plate is fixed to the left side surface of the support plate. A fall arrestor is provided at the upper end of the slide plate. The fall arrestor includes a vertical plate. A horizontal plate is fixed to the side surface of the vertical plate near the slide plate. A notch is provided at the end of the horizontal plate away from the vertical plate. Fixing blocks are fixed to both sides of the lower surface of the horizontal plate at the notch. A clamping rod is installed between the two fixing blocks. A rotating shaft is fixed to the side surface of the clamping rod near the fixing block. An attraction mechanism is provided on the opposite side surfaces of the vertical plate and the clamping rod.

[0009] As a further embodiment of this utility model: the attraction mechanism includes a first connecting rod and a second connecting rod, wherein a magnetic block is fixedly connected to the end of the first connecting rod away from the vertical plate, and an iron block is fixedly connected to the end of the second connecting rod away from the locking rod.

[0010] As a further embodiment of this utility model: the vertical plate is fixed to the upper part of the left side surface of the skateboard, and the horizontal plate is attached to the upper end of the skateboard.

[0011] As a further embodiment of this utility model: the locking rod is directly opposite the locking plate, the locking rod is located inside the notch, and the rotating shaft is rotatably connected to the fixing block.

[0012] As a further embodiment of this utility model: the first connecting rod is threaded inside the vertical plate and is located above the horizontal plate, and the second connecting rod is threaded inside the upper end of the clamping rod.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This utility model is equipped with a fall prevention component. The locking bar in the fall prevention component is fixed to the drive device by a chain or rope. During normal operation, the chain or rope is in a taut state, and the locking bar and locking plate will not lock together. When the chain or rope breaks, the upper end of the locking bar approaches the vertical plate, and the lower end of the locking bar approaches and fits against the locking plate, so that the locking bar and locking plate lock together, thereby achieving the fall prevention function.

[0015] The attraction mechanism causes the upper end of the lever to approach the rapid vertical plate when the chain or rope breaks, and the lower end of the lever to quickly approach and fit against the plate, improving the fall protection rate with almost no delay. Attached Figure Description

[0016] Figure 1 A schematic diagram of a novel anti-fall mechanism for elevators;

[0017] Figure 2 This is a partial schematic diagram of a novel anti-fall mechanism for elevators;

[0018] Figure 3 This is a structural schematic diagram of a fall protection component in a novel fall protection mechanism for an elevator.

[0019] Figure 4 This is a partial schematic diagram of the anti-fall component in a novel anti-fall mechanism for elevators;

[0020] Figure 5 This is a schematic diagram of the attraction mechanism in a novel anti-fall mechanism for an elevator.

[0021] Figure 6 This is a schematic diagram showing the separation and engagement states of a locking lever in a novel anti-fall mechanism for an elevator.

[0022] Figure 7 This is a schematic diagram showing the actual installation and use of a new type of elevator anti-fall mechanism.

[0023] In the diagram: 1. Support tube; 2. Support block; 3. Support plate; 4. Slide rail; 5. Slide plate; 6. Clamping plate; 7. Fall protection component; 8. Vertical plate; 9. Horizontal plate; 10. Notch; 11. Fixing block; 12. Clamping rod; 13. Rotating shaft; 14. Suction mechanism; 15. First connecting rod; 16. Second connecting rod; 17. Magnetic block; 18. Iron block. Detailed Implementation

[0024] Please see Figures 1-4 , Figure 6 and Figure 7 In this embodiment of the utility model, a novel elevator anti-fall mechanism includes two front and rear support pipes 1, with multiple support blocks 2 fixedly connected from top to bottom between the two support pipes 1, a support plate 3 fixedly connected to the left side surface of the multiple support blocks 2, a slide rail 4 fixedly connected to the left side surface of the support pipe 1, and a sliding plate 5 slidably connected to the outside of the two front and rear slide rails 4.

[0025] A clamping plate 6 is fixed to the left side surface of the support plate 3. A fall protection component 7 is provided at the upper end of the slide plate 5. The fall protection component 7 includes a vertical plate 8, which is fixed to the upper end of the left side surface of the slide plate 5. A horizontal plate 9 is fixed to the side surface of the vertical plate 8 near the slide plate 5. The horizontal plate 9 is attached to the upper end of the slide plate 5. A notch 10 is provided at the end of the horizontal plate 9 away from the vertical plate 8. Fixing blocks 11 are fixed to both sides of the lower surface of the horizontal plate 9 at the notch 10. A clamping rod 12 is installed between the two fixing blocks 11. The clamping rod 12 is directly opposite the clamping plate 6 and is located inside the notch 10. A rotating shaft 13 is fixed to the side surface of the clamping rod 12 near the fixing block 11. The rotating shaft 13 is rotatably connected to the fixing block 11 through the clamping rod 12.

[0026] The upper end of the lever 12 is connected to the drive device via a chain or winch rope, etc., to drive the slide plate 5 to rise and fall;

[0027] The upper part of the lever 12 is heavier than the lower part. When it is tightened, the lever 12 will not engage the plate 6. After the chain or winch rope is broken, the upper part of the lever 12 will tilt towards the inside of the notch 10, and the lower part of the lever 12 will approach and engage the plate 6.

[0028] The card plate 6 includes a plate body and a trapezoidal block fixed to the plate body from top to bottom; the upper and lower surfaces of the trapezoidal block are horizontal, and the upper surface is larger than the lower surface, and the side surface near the fall arrestor 7 is a vertical surface and an inclined surface fixed to the vertical surface.

[0029] exist Figure 4 and Figure 5 In the middle: A suction mechanism 14 is provided on the opposite side surface of the vertical plate 8 and the clamping rod 12. The suction mechanism 14 includes a first connecting rod 15 and a second connecting rod 16. The first connecting rod 15 is threadedly connected to the inside of the vertical plate 8 and is located above the horizontal plate 9. The second connecting rod 16 is threadedly connected to the upper end of the clamping rod 12. A magnetic block 17 is fixedly connected to the end of the first connecting rod 15 away from the vertical plate 8, and an iron block 18 is fixedly connected to the end of the second connecting rod 16 away from the clamping rod 12.

[0030] The magnetic block 17 is attracted to the iron block 18. After the chain or winch rope is broken, the attraction will cause the upper end of the lever 12 to quickly tilt into the notch 10, and the lower end of the lever 12 will quickly approach and lock the plate 6, further improving the fall protection rate.

[0031] The working principle of this utility model is as follows: In use, the locking rod 12 in the anti-fall device 7 is fixed by a chain or rope. The other end of the chain or rope is connected to the drive device for raising and lowering the chain or rope. During normal operation, the chain or rope drives the slide plate 5 to rise and fall normally through the anti-fall device 7. When the chain or rope breaks, the upper end of the locking rod 12 quickly approaches the vertical plate 8, and the lower end of the locking rod 12 quickly approaches and fits against the locking plate 6, so that the locking rod 12 and the locking plate 6 are locked together, preventing the slide plate 5 from falling.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A novel anti-fall mechanism for a lift, comprising two support pipes (1) at the front and rear, a plurality of support blocks (2) fixedly connected from top to bottom between the two support pipes (1), a support plate (3) fixedly connected to the left side surface of the plurality of support blocks (2), a slide rail (4) fixedly connected to the left side surface of the support pipe (1), and a sliding plate (5) slidably connected to the outside of the two slide rails (4). Its features are, A clamping plate (6) is fixed to the left side surface of the support plate (3). A fall arrestor (7) is provided at the upper end of the slide plate (5). The fall arrestor (7) includes a vertical plate (8). A horizontal plate (9) is fixed to the side surface of the vertical plate (8) near the slide plate (5). A notch (10) is provided at the end of the horizontal plate (9) away from the vertical plate (8). Fixing blocks (11) are fixed to both sides of the lower surface of the horizontal plate (9) located at the notch (10). A clamping rod (12) is installed between the two fixing blocks (11). A rotating shaft (13) is fixed to the side surface of the clamping rod (12) near the fixing block (11). An attraction mechanism (14) is provided on the opposite side surfaces of the vertical plate (8) and the clamping rod (12).

2. The novel elevator anti-fall mechanism according to claim 1, characterized in that, The attraction mechanism (14) includes a first connecting rod (15) and a second connecting rod (16). A magnetic block (17) is fixed to one end of the first connecting rod (15) away from the vertical plate (8), and an iron block (18) is fixed to one end of the second connecting rod (16) away from the lever (12).

3. The novel elevator anti-fall mechanism according to claim 1, characterized in that, The vertical plate (8) is fixed to the upper end of the left side surface of the slide plate (5), and the horizontal plate (9) is attached to the upper end of the slide plate (5).

4. The novel elevator anti-fall mechanism according to claim 1, characterized in that, The lever (12) is directly opposite the plate (6), the lever (12) is located inside the notch (10), and the rotating shaft (13) is rotatably connected to the fixed block (11).

5. A novel anti-fall mechanism for elevators according to claim 2, characterized in that, The first connecting rod (15) is threaded inside the vertical plate (8) and is located above the horizontal plate (9). The second connecting rod (16) is threaded inside the upper end of the clamping rod (12).

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