Safety protection device for top cover and pit lining

Abstract

The utility model relates to a safety protection device for a top cover and a machine pit lining, which aims at solving the problems that a traditional safety net is complex in installation, poor in stability and easy to loosen and damage, and specifically comprises a foot plate and a traction mechanism, one side of the foot plate is fixed on the foundation pit lining through the traction mechanism, and the other side of the foot plate is lapped on an equipment top cover; the traction mechanism is composed of a C-shaped plate, a euphroe, a steel wire rope and a fixing assembly, the C-shaped plate is fixed to a foundation pit lining through a bolt set, the euphroe is connected with the steel wire rope and adjusts the position of a foot plate, and the steel wire rope is doubly locked through a heart-shaped ring and a steel wire rope clamp. The foot plates adopt modular design, clamping grooves are formed in the two ends and spliced to form an annular protection area, and reinforcing ribs and steel wire mesh plates are arranged in the middle to enhance the impact resistance. Through a modular structure, dynamic adjustment and high-stability connection, rapid installation and stable protection are achieved, the device is adaptive to different unit sizes, the edge falling risk is remarkably reduced, and the overhaul efficiency and safety are improved.

Description

Technical Field

[0001] This utility model relates to the field of hydropower station unit maintenance technology, specifically a safety protection device for the top cover and the lining of the pit. Background Technology

[0002] During the maintenance of hydropower station units, the area between the roof and the pit lining poses a significant safety hazard, with workers at risk of falling to the edge. Traditional safety netting methods suffer from poor protective effects, complex installation, and poor stability, making it difficult to eliminate safety hazards and improve work efficiency. Common manual netting methods have the following drawbacks: first, the conditions at the safety netting installation points are often poor, making the netting prone to loosening and damage, failing to effectively protect the safety of maintenance personnel; second, the existing safety netting installation process is inefficient, requiring multiple workers to collaborate. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a safety protection device for the top cover and the lining of the pit, so as to solve the problems of large safety hazards and low installation efficiency of the existing protection methods.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a safety protection device for the top cover and the pit lining, including a foot plate, the foot plate being fixed by a traction mechanism, the upper end of the traction mechanism being fixed to the pit lining, the lower end being fixed to two corners on one side of the foot plate, and the other side of the foot plate resting on the top cover of the equipment.

[0005] The traction mechanism includes a rope tensioner, with a C-shaped plate connected to the upper end of the rope tensioner. The C-shaped plate is fixed to the lining of the pit. A steel wire rope is connected to the lower end of the rope tensioner. The upper end of the steel wire rope is connected to the rope tensioner, and the lower end of the steel wire rope is connected to the foot plate.

[0006] In a preferred embodiment, the upper and lower ends of the wire rope are further provided with heart-shaped loops, and the upper and lower ends of the wire rope pass through the heart-shaped loops and are clamped and fixed by wire rope clamps.

[0007] In a preferred embodiment, the C-shaped plate is provided with bolt holes, and a first bolt and nut assembly is installed in the bolt holes. The C-shaped plate is fixed to the pit lining by the first bolt and nut assembly.

[0008] In a preferred embodiment, a first lifting ring is provided on the bottom surface of the C-shaped plate, and the hook at the upper end of the rope tensioner is attached to the first lifting ring.

[0009] In a preferred embodiment, two second lifting rings are provided at two corners on one side of the foot plate and are fixed by a second bolt and nut assembly, and the heart-shaped ring at the lower end of the wire rope is hooked to the second lifting ring.

[0010] In a preferred embodiment, the foot plate has an opening in the middle, a reinforcing rib is provided in the opening, and a wire mesh plate is laid on top of the reinforcing rib.

[0011] In a preferred embodiment, the foot plates are provided with slots at both ends, and multiple foot plates are arranged in a circumferential manner to form a ring-shaped protective area, with adjacent foot plates engaging with each other through the slots.

[0012] The safety protection device for the top cover and the lining of the machine pit provided by this utility model has the following beneficial effects by adopting the above structure:

[0013] (1) This device significantly simplifies the complex hanging process of traditional safety nets through the modular design of the traction mechanism and foot plate. The C-shaped plate is quickly fixed to the pit lining by bolt and nut group. The combination of the rope tensioner and the lifting ring can realize the flexible adjustment of the wire rope length. Installation can be completed without the cooperation of multiple people, greatly shortening the construction time and improving the maintenance efficiency.

[0014] (2) The footboard adopts a design of reinforcing ribs and steel wire mesh, combined with a slot splicing structure, which can form a ring protection area, significantly improving the overall load-bearing capacity and impact resistance. The steel wire rope is double-fixed by the heart ring and steel wire rope clamp, and with the dynamic adjustment function of the rope tensioner, it effectively prevents the protective device from loosening or falling off due to external force, and completely eliminates the wind of falling from the edge. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the C-shaped plate structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the C-shaped plate structure with nut assembly and lifting ring of this utility model.

[0019] In the diagram: C-shaped plate 1, bolt hole 101, first bolt and nut assembly 2, rope tensioner 3, first lifting eye 4, heart-shaped ring 5, wire rope 6, wire rope clamp 7, second lifting eye 8, foot plate 9, wire mesh plate 10, reinforcing rib 11, second bolt and nut assembly 12. Detailed Implementation

[0020] A safety protection device for the top cover and the pit lining includes a foot plate 9, which is fixed by a traction mechanism. The upper end of the traction mechanism is fixed to the pit lining, and the lower end is fixed to two corners on one side of the foot plate 9. The other side of the foot plate 9 rests on the top cover of the equipment.

[0021] The traction mechanism includes a rope tensioner 3, with a C-shaped plate 1 connected to the upper end of the rope tensioner 3. The C-shaped plate 1 is fixed to the lining of the pit. A steel wire rope 6 is connected to the lower end of the rope tensioner 3. The upper end of the steel wire rope 6 is connected to the rope tensioner 3, and the lower end of the steel wire rope 6 is connected to the foot plate 9.

[0022] In a preferred embodiment, the upper and lower ends of the wire rope 6 are further provided with a heart-shaped ring 5, and the upper and lower ends of the wire rope 6 pass through the heart-shaped ring 5 and are clamped and fixed by the wire rope clamp 7.

[0023] In a preferred embodiment, the C-shaped plate 1 is provided with bolt holes 101, and a first bolt and nut assembly 2 is installed in the bolt holes 101. The C-shaped plate 1 is fixed to the pit lining by the first bolt and nut assembly 2.

[0024] In a preferred embodiment, a first lifting ring 4 is provided on the bottom surface of the C-shaped plate 1, and the hook at the upper end of the rope tensioner 3 is hung on the first lifting ring 4.

[0025] In a preferred embodiment, the foot plate 9 has two corners on one side with a second lifting ring 8 fixed by a second bolt and nut assembly 12, and the lower end of the wire rope 6 has a heart-shaped ring 5 hooked to the second lifting ring 8.

[0026] In a preferred embodiment, the foot plate 9 has an opening in the middle, a reinforcing rib 11 is provided in the opening, and a wire mesh plate 10 is laid on top of the reinforcing rib 11.

[0027] In a preferred embodiment, the foot plate 9 has slots at both ends, and multiple foot plates 9 are arranged in a circumferential manner to form a ring-shaped protective area. Adjacent foot plates 9 are engaged with each other through the slots.

[0028] The safety protection device for the top cover and the lining of the machine pit disclosed in this utility model, during installation:

[0029] First, the C-shaped plate 1 is vertically fixed to the pre-embedded position of the pit lining using the first bolt and nut group 2, ensuring that the bolt holes 101 are aligned.

[0030] Then, hook the rope tensioner 3 into the first ring 4 of the C-shaped plate 1 and adjust the rope tensioner 3 to the initial length.

[0031] Next, the upper end of the wire rope 6 is passed through the heart-shaped ring 5 and fixed to the rope tensioner 3, and the lower end is connected to the side corner of the foot plate 9 through the second lifting ring 8 and locked with the wire rope clamp 7.

[0032] Then, the other side of the foot plate 9 is attached to the edge of the equipment top cover, and the steel wire rope 6 is tightened by the ratchet rope tightener 3 so that the foot plate 9 fits tightly with the top cover.

[0033] Finally, repeat the above steps to install multiple foot plates 9, and splice them together with slots to form a ring-shaped protective structure, ultimately covering the entire work area.

[0034] During maintenance work:

[0035] The steel wire mesh plate 10 of the foot plate 9 provides a fall protection barrier, and the reinforcing ribs 11 enhance the overall resistance to deformation.

[0036] The rope tensioner 3 can dynamically adjust the length of the wire rope 6 according to the gap between the top cover and the lining of the pit, ensuring that the foot plate 9 is always in a stable state.

[0037] The ring-shaped splicing design ensures that there are no blind spots in the protected area, and the slot connection effectively disperses external impacts and prevents local loosening.

[0038] Based on the above structure, the safety protection device can achieve rapid installation. The modular foot plate 9, in conjunction with the traction mechanism, allows a single person to complete the assembly of the ring protection area within 30 minutes, saving 60% of the working time compared to traditional safety nets. At the same time, the rope tensioner 3 can finely adjust the tension of the steel wire rope 6 in real time to adapt to the displacement of the top cover caused by temperature or load, and avoid protection failure. In addition, the slot splicing and reinforcing rib 11 design increases the overall structure's impact resistance to more than 3 times that of traditional safety nets, with a maximum load capacity of 500 kg.

[0039] This utility model effectively solves the defects of traditional safety net protection through modular design, dynamic adjustment and high stability structure, and provides efficient and reliable safety protection for the maintenance of hydropower station units.

Claims

1. A safety shield for a roof and pit liner, characterized in that: Includes footboard (9), which is fixed by a traction mechanism. The upper end of the traction mechanism is fixed to the pit lining, and the lower end is fixed to two corners on one side of the footboard (9). The other side of the footboard (9) rests on the top cover of the equipment. The traction mechanism includes a rope tensioner (3), the upper end of which is connected to a C-shaped plate (1), the C-shaped plate (1) is fixed on the lining of the pit, the lower end of which is connected to a wire rope (6), the upper end of which is connected to the rope tensioner (3), and the lower end of which is connected to a foot plate (9).

2. A safety shield for a roof hatch and pit liner according to claim 1, wherein: The upper and lower ends of the wire rope (6) are also provided with heart-shaped rings (5). The upper and lower ends of the wire rope (6) pass through the heart-shaped rings (5) and are clamped and fixed by the wire rope clamps (7).

3. A safety shield for a roof hatch and pit liner according to claim 1, wherein: The C-shaped plate (1) is provided with bolt holes (101), and a first bolt and nut assembly (2) is installed in the bolt holes (101). The C-shaped plate (1) is fixed to the pit lining by the first bolt and nut assembly (2).

4. A safety shield for a roof hatch and pit liner according to claim 3, wherein: The bottom surface of the C-shaped plate (1) is provided with a first lifting ring (4), and the hook at the upper end of the rope tensioner (3) is hung on the first lifting ring (4).

5. A safety shield for a roof hatch and pit liner according to claim 1, wherein: The foot plate (9) has two corners on one side with a second lifting ring (8) fixed by a second bolt and nut assembly (12). The heart-shaped ring (5) at the lower end of the wire rope (6) is hooked to the second lifting ring (8).

6. A safety shield for a roof hatch and pit liner according to claim 1, wherein: The foot plate (9) has an opening in the middle, and a reinforcing rib (11) is provided in the opening. A wire mesh plate (10) is laid on top of the reinforcing rib (11).

7. The safety protection device for the top cover and the pit lining according to claim 1, characterized in that: The footplate (9) has slots at both ends, and multiple footplates (9) are arranged in a ring to form a ring-shaped protective area. Adjacent footplates (9) are engaged with each other through the slots.

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