Safety protection device for hoisting machinery

Abstract

The utility model discloses a hoisting machinery safety protection device which comprises a protection net body, a limiting groove is formed in the right surface of the protection net body, a sliding rod is fixedly connected to the inner surface of the limiting groove, a first spring is arranged on the outer surface of the sliding rod, a first L-shaped buckle is slidably connected to the outer surface of the sliding rod, and a second spring is arranged on the outer surface of the first L-shaped buckle. The upper surface of the first L-shaped buckle is fixedly connected with a first toothed plate, and the upper end of the first toothed plate is fixedly connected with a first limiting block. Through the arrangement of structures such as a first L-shaped buckle, a first toothed plate, a second L-shaped buckle, a second toothed plate and a gear, a plurality of protective nets can be assembled or disassembled under the condition that no tool is used for assisting, so that the portability during assembly and disassembly is effectively improved, and the working efficiency is improved; and in cooperation with the arrangement of a foldable telescopic supporting device, the whole protective net can be supported, meanwhile, the overall size can be reduced when the protective net is not used, the transportation cost can be conveniently controlled, and practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of safety protection devices, in particular to a safety protection device for lifting machinery. Background Art

[0002] Cranes play a vital role in industries such as construction, cargo handling, and port loading and unloading. However, the high risk associated with lifting operations also poses potential safety hazards to operators and the surrounding environment. During lifting operations, improper operation, equipment failure, and environmental influences can cause accidents such as falling loads, dislodged lifting gear, and collisions, resulting in casualties and property damage. Therefore, protective nets are often installed around cranes to prevent people from approaching.

[0003] However, the existing protective nets still have certain defects. For example, the protective nets are usually connected by bolts, which means that tools are needed to install and dismantle the protective nets, which is inconvenient. Secondly, the bottom of the protective net is usually set as a tripod structure. Although this setting can improve the stability of the protective net, the tripod takes up a lot of space, which will greatly increase transportation costs and lack practicality. Utility Model Content

[0004] The purpose of the present utility model is to solve at least one of the technical problems existing in the prior art and to provide a lifting machinery safety protection device. Through the arrangement of a first L-shaped buckle, a first tooth plate, a second L-shaped buckle, a second tooth plate, a gear and other structures, multiple protection nets can be assembled or disassembled without the assistance of tools, thereby effectively improving the portability during installation and disassembly, and improving work efficiency. In addition, the arrangement of a foldable and telescopic support device can support the entire protection net while reducing the overall volume when not in use, so as to control transportation costs and improve practicality.

[0005] The utility model also provides a lifting machinery safety protection device having the above-mentioned structure, comprising:

[0006] The outer surface of the first L-shaped clip is fixedly connected to the first gear plate, and the upper end of the first gear plate is fixedly connected to the first limit block. The outer surface of the slide bar is slidably connected to the first L-shaped clip, and the lower end of the first gear plate is fixedly connected to the first limit block. The outer surface of the slide bar is slidably connected to the second L-shaped clip, and the lower surface of the second L-shaped clip is fixedly connected to the second gear plate. The lower end of the second gear plate is fixedly connected to the second limit block. The inner surface of the protective net body is fixedly connected to the fixing box, and the inner surface of the fixing box is rotatably connected to the rotating shaft, the outer surface of the rotating shaft is fixedly connected to the gear, and the front end of the rotating shaft is fixedly connected to the turntable, and the left surface of the protective net body is provided with a slot.

[0007] The supporting device includes a fixed seat, a fixed column, a support rod, a limiting plate, a connecting column, a flip seat, a support plate, a fixed frame, a pin column, a limiting ring, a pull ball, a second spring and a sleeve. The inner surface of the fixed seat is fixedly connected to the fixed column, the outer surface of the support rod is slidably connected to the sleeve, the outer surface of the limiting plate is fixedly connected to the support rod, the outer surface of the connecting column is rotatably connected to the flip seat, the lower surface of the flip seat is fixedly connected to the support plate, the inner surface of the fixed frame is slidably connected to the pin column, the outer surface of the limiting ring is fixedly connected to the second spring, and the outer surface of the pin column is fixedly connected to the pull ball.

[0008] According to the lifting machinery safety protection device, the inner surface of the limit groove is adapted to the first L-shaped buckle, and the inner surface of the limit groove is adapted to the second L-shaped buckle, for guiding the two when they move.

[0009] According to the lifting machinery safety protection device, the outer surface of the first tooth plate is slidably connected to the second L-shaped buckle, and the outer surface of the second tooth plate is slidably connected to the first L-shaped buckle.

[0010] According to the lifting machinery safety protection device, the first tooth plate is engaged with the gear, and the second tooth plate is engaged with the gear.

[0011] According to the lifting machinery safety protection device, the inner surface of the slot is matched with the first L-shaped buckle, and the inner surface of the slot is matched with the second L-shaped buckle, which facilitates the installation and removal of the protection net.

[0012] According to the safety protection device for lifting machinery, the front surface of the fixing seat is fixedly connected to the protection net body, and the outer surface of the fixing column is rotatably connected to the support rod.

[0013] According to the lifting machinery safety protection device, the outer surface of the connecting column is fixedly connected to the sleeve.

[0014] According to the lifting machinery safety protection device, the outer surface of the support rod is provided with a socket, and the inner surface of the socket is adapted to the latch column, so as to facilitate adjustment of the overall length of the support rod and the sleeve.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0017] Figure 1 This is a schematic diagram of the overall structure of a lifting machinery safety protection device of the utility model;

[0018] Figure 2 This is a schematic diagram of the overall structure of a lifting machinery safety protection device of the utility model;

[0019] Figure 3 for Figure 2 A schematic diagram of the structure at point A in the middle;

[0020] Figure 4 This is a cross-sectional view of the support structure of a lifting machinery safety protection device of the utility model;

[0021] Figure 5 for Figure 4 A magnified schematic diagram of the structure at point B.

[0022] Legend:

[0023] 1. Protective net body; 2. Limiting groove; 3. Sliding rod; 4. First spring; 5. First L-shaped buckle; 6. First tooth plate; 7. First limiting block; 8. Second L-shaped buckle; 9. Second tooth plate; 10. Second limiting block; 11. Fixing box; 12. Rotating shaft; 13. Gear; 14. Turntable; 15. Slot; 16. Support device; 17. Fixed seat; 18. Fixed column; 19. Support rod; 20. Limiting plate; 21. Connecting column; 22. Flip seat; 23. Support plate; 24. Fixing frame; 25. Pin column; 26. Limiting ring; 27. Pull ball; 28. Second spring; 29. ​​Sleeve; 30. Socket. DETAILED DESCRIPTION

[0024] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0025] Reference Figure 1-5 , the utility model embodiment of a lifting machinery safety protection device includes: a protective net body 1, a limiting groove 2 is provided on the right surface of the protective net body 1, the inner surface of the limiting groove 2 is fixedly connected to a sliding rod 3, the outer surface of the sliding rod 3 is provided with a first spring 4, the outer surface of the sliding rod 3 is slidably connected to a first L-shaped buckle 5, the upper surface of the first L-shaped buckle 5 is fixedly connected to a first tooth plate 6, the upper end of the first tooth plate 6 is fixedly connected to a first limiting block 7, the outer surface of the sliding rod 3 is slidably connected to a second L-shaped buckle 8, the lower surface of the second L-shaped buckle 8 is fixedly connected to a second tooth plate 9, the lower end of the second tooth plate 9 is fixedly connected to a second limiting block 10, and the inner surface of the protective net body 1 is fixedly connected to a fixing box 11. The inner surface of the fixed box 11 is rotatably connected to the rotating shaft 12, the outer surface of the rotating shaft 12 is fixedly connected to the gear 13, and the front end of the rotating shaft 12 is fixedly connected to the turntable 14. A card slot 15 is provided on the left surface of the protective net body 1, the inner surface of the limiting groove 2 is adapted to the first L-shaped buckle 5, the inner surface of the limiting groove 2 is adapted to the second L-shaped buckle 8, the outer surface of the first tooth plate 6 is slidably connected to the second L-shaped buckle 8, the outer surface of the second tooth plate 9 is slidably connected to the first L-shaped buckle 5, the first tooth plate 6 is meshed with the gear 13, the second tooth plate 9 is meshed with the gear 13, the inner surface of the card slot 15 is adapted to the first L-shaped buckle 5, and the inner surface of the card slot 15 is adapted to the second L-shaped buckle 8.

[0026] The supporting device 16 includes a fixed seat 17, a fixed column 18, a support rod 19, a limit plate 20, a connecting column 21, a flip seat 22, a support plate 23, a fixing frame 24, a latch column 25, a limit ring 26, a pull ball 27, a second spring 28 and a sleeve 29. The inner surface of the fixed seat 17 is fixedly connected to the fixed column 18, the outer surface of the support rod 19 is slidably connected to the sleeve 29, the outer surface of the limit plate 20 is fixedly connected to the support rod 19, the outer surface of the connecting column 21 is rotatably connected to the flip seat 22, and the flip The lower surface of the seat 22 is fixedly connected to the support plate 23, the inner surface of the fixing frame 24 is slidingly connected to the pin column 25, the outer surface of the limiting ring 26 is fixedly connected to the second spring 28, the outer surface of the pin column 25 is fixedly connected to the pull ball 27, the front surface of the fixed seat 17 is fixedly connected to the protective net body 1, the outer surface of the fixing column 18 is rotatably connected to the support rod 19, the outer surface of the connecting column 21 is fixedly connected to the sleeve 29, and the outer surface of the support rod 19 is provided with a socket 30, and the inner surface of the socket 30 is adapted to the pin column 25.

[0027] When the two are fully engaged, the rotary disk 14 is released, and under the action of the restoring force of the first spring 4, the first L-shaped buckle 5 and the second L-shaped buckle 8 will expand outward and reset, thereby realizing the assembly of the two protective nets. It is simple and convenient. When disassembly is required, only the rotary disk 14 is needed to drive the first L-shaped buckle 5 and the second L-shaped buckle 8 to move toward each other, and then one of the protective nets is pulled out to complete the disassembly. It is simple and convenient. At the same time, when the protective net is protecting the lifting machinery, it can be disassembled by pulling the pull ball outward. 27, drives the pin column 25 out of one of the sockets 30, and compresses the second spring 28, and then pulls the entire sleeve 29 to extend the overall length of the support rod 19 and the sleeve 29. When the required length is reached, release the pull ball 27, and under the action of the restoring force of the second spring 28, the pin column 25 is stuck in the corresponding socket 30, and then the support rod 19 and the sleeve 29 are flipped around the fixing column 18 as a whole, and the support plate 23 is flipped around the connecting column 21 through the flip seat 22, so that the support plate 23 contacts the ground, and then the fixing anchor is inserted into the hole on the surface of the support plate 23 and the soil around the machine, so that the protective net can be supported to avoid tipping over. When transporting the protective net, only need to pull the pull ball 27 again to compress the support rod 19 and the sleeve 29 as a whole, and fold the support device 16 as a whole around the fixing column 18, so as to reduce the space occupied by the protective net during transportation and improve practicality.

[0028] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A lifting machinery safety protection device, characterized in that: include: A protective net body (1), a limiting groove (2) is provided on the right surface of the protective net body (1), a slide bar (3) is fixedly connected to the inner surface of the limiting groove (2), a first spring (4) is provided on the outer surface of the slide bar (3), a first L-shaped buckle (5) is slidably connected to the outer surface of the slide bar (3), a first tooth plate (6) is fixedly connected to the upper surface of the first L-shaped buckle (5), a first limiting block (7) is fixedly connected to the upper end of the first tooth plate (6), and a second L-shaped buckle ( 8), the lower surface of the second L-shaped buckle (8) is fixedly connected to a second tooth plate (9), the lower end of the second tooth plate (9) is fixedly connected to a second limit block (10), the inner surface of the protective net body (1) is fixedly connected to a fixing box (11), the inner surface of the fixing box (11) is rotatably connected to a rotating shaft (12), the outer surface of the rotating shaft (12) is fixedly connected to a gear (13), the front end of the rotating shaft (12) is fixedly connected to a turntable (14), and a card slot (15) is provided on the left surface of the protective net body (1); The supporting device (16) comprises a fixing seat (17), a fixing column (18), a supporting rod (19), a limiting plate (20), a connecting column (21), a flip seat (22), a supporting plate (23), a fixing frame (24), a latch column (25), a limiting ring (26), a pulling ball (27), a second spring (28) and a sleeve (29). The inner surface of the fixing seat (17) is fixedly connected to the fixing column (18), and the outer surface of the supporting rod (19) is fixedly connected to the sleeve. The cylinder (29) is slidably connected, the outer surface of the limit plate (20) is fixedly connected to the support rod (19), the outer surface of the connecting column (21) is rotatably connected to the flip seat (22), the lower surface of the flip seat (22) is fixedly connected to the support plate (23), the inner surface of the fixing frame (24) is slidably connected to the latch column (25), the outer surface of the limit ring (26) is fixedly connected to the second spring (28), and the outer surface of the latch column (25) is fixedly connected to the pull ball (27).

2. A lifting machinery safety protection device according to claim 1, characterized in that: The inner surface of the limiting groove (2) is adapted to the first L-shaped buckle (5), and the inner surface of the limiting groove (2) is adapted to the second L-shaped buckle (8).

3. A lifting machinery safety protection device according to claim 1, characterized in that: The outer surface of the first tooth plate (6) is slidably connected to the second L-shaped buckle (8), and the outer surface of the second tooth plate (9) is slidably connected to the first L-shaped buckle (5).

4. A lifting machinery safety protection device according to claim 1, characterized in that: The first tooth plate (6) is meshed with the gear (13), and the second tooth plate (9) is meshed with the gear (13).

5. A lifting machinery safety protection device according to claim 1, characterized in that: The inner surface of the clamping slot (15) is adapted to the first L-shaped clamping buckle (5), and the inner surface of the clamping slot (15) is adapted to the second L-shaped clamping buckle (8).

6. A lifting machinery safety protection device according to claim 1, characterized in that: The front surface of the fixing seat (17) is fixedly connected to the protective net body (1), and the outer surface of the fixing column (18) is rotatably connected to the support rod (19).

7. A lifting machinery safety protection device according to claim 1, characterized in that: The outer surface of the connecting column (21) is fixedly connected to the sleeve (29).

8. A lifting machinery safety protection device according to claim 1, characterized in that: The outer surface of the support rod (19) is provided with a socket (30), and the inner surface of the socket (30) is adapted to the latch column (25).

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