Anti-falling net structure

Abstract

The utility model relates to municipal engineering, and discloses an anti-falling net structure which comprises an anti-falling net, a plurality of embedded hooks and a first reinforcing ring. The anti-falling net is designed into two layers of a base body part and a net body part, the two layers are connected with hooks of embedded hooks at the same time, and meanwhile a linear section of the base body part is connected to a first reinforcing ring fixed to the multiple embedded hooks. The anti-falling net has the beneficial effect that the impact resistance and the bearing capacity of the anti-falling net are improved through the design of the connecting structure.

Description

Technical Field

[0001] The utility model relates to municipal engineering, in particular to an anti-falling net structure. Background Art

[0002] Anti-fall nets are generally used in concrete wells or manholes. Through multiple pre-buried hooks, the anti-fall nets are connected to the inner wall near the wellhead. When pedestrians pass through the manhole cover, in case there is a problem with the manhole cover, the anti-fall net is used to prevent pedestrians from falling. Therefore, the anti-fall net generally needs to meet the corresponding impact resistance and load-bearing capacity. At present, the required impact resistance and load-bearing capacity are generally achieved by selecting the material of the anti-fall net and the thickness of the single rope in the anti-fall net. Utility Model Content

[0003] The present application provides a fall prevention net structure, which can solve the problem that the existing fall prevention net lacks the design of the connection structure to improve the impact resistance and load-bearing capacity of the fall prevention net.

[0004] In the present application, a fall prevention net structure is provided, comprising:

[0005] The anti-fall net is circular in shape and comprises a base part and a net part covering the base part; the base part comprises a plurality of concentric circular segments with different diameters and a plurality of straight line segments arranged in a circular array;

[0006] A plurality of pre-buried hooks, each of which is a hook near the first end of the anti-fall net and connects the outermost circular segment and the net body;

[0007] The first reinforcement ring is fixedly connected to the protruding portion of the inner side of the plurality of embedded hooks; the first ends of the plurality of straight line segments on the outer side extend beyond the outermost circular segment and are connected to the first reinforcement ring.

[0008] Furthermore, it also includes at least one second reinforcement ring connected to the embedded parts of the plurality of embedded hooks.

[0009] Furthermore, the bottom of the first reinforcement ring is provided with a U-shaped clamp for connection at a position corresponding to each of the embedded hooks.

[0010] Furthermore, the number of the second reinforcement rings is two, and each of the second reinforcement rings is provided with the same number of bending notches as the embedded hooks; for any embedded hook, the corresponding two bending notches are one facing upward and the other facing downward.

[0011] Furthermore, the number of the pre-embedded hooks is six or eight.

[0012] In summary, in the present application, a fall prevention net structure includes a fall prevention net, a plurality of pre-embedded hooks and a first reinforcement ring. The fall prevention net is designed to be two layers, a base part and a net body part, both layers are connected to the hooks of the pre-embedded hooks at the same time, and the straight section of the base part is connected to the first reinforcement ring fixed to the plurality of pre-embedded hooks. Beneficial effect: The impact resistance and load-bearing capacity of the fall prevention net are improved by designing the connection structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the background technology, the drawings required for use in the embodiments of the present application or the background technology will be described below.

[0014] Figure 1 This is a top view of the anti-fall net structure in the concrete well;

[0015] Figure 2 It is a schematic diagram of the arrangement of the embedded hook, the first reinforcement ring and the second reinforcement ring;

[0016] Figure 3 for Figure 2 Enlarged schematic diagram of part A.

[0017] In the figure,

[0018] 1. Anti-fall net; 1a. Base part; 1a1. Circular segment; 1a2. Straight segment; 1b. Net body part;

[0019] 2. Pre-buried hook;

[0020] 3. First reinforcement ring; 3a. U-shaped clamp;

[0021] 4. Second reinforcement ring; 4a. Bending notch. DETAILED DESCRIPTION

[0022] The following is further explained in conjunction with the accompanying drawings. Unless otherwise defined, the technical terms or scientific terms used in the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. The "first", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0023] See also Figure 1 A fall prevention net structure includes a fall prevention net 1, a plurality of pre-embedded hooks 2 and a first reinforcement ring 3.

[0024] The anti-fall net 1 is circular, and includes a base portion 1a and a net portion 1b, wherein the net portion 1b covers the base portion 1a. The base portion 1a includes a plurality of concentric circular segments 1a1 with different diameters and a plurality of straight segments 1a2 arranged in a circular array. Specifically, the circular segments 1a1 and the straight segments 1a2 can be made of polyethylene, and the circular segments 1a1 and the straight segments 1a2 can be connected by tying a knot.

[0025] The plurality of pre-embedded hooks 2 are pre-set on the inner wall near the wellhead when the concrete well is constructed. After the concrete is poured, the plurality of pre-embedded hooks 2 are fixed on the inner wall of the concrete well. The first ends of the plurality of pre-embedded hooks 2 near the anti-fall net 1 are all hooks, which connect the outermost circular segment 1a1 and the net body 1b, that is, the diameter of the outermost circular segment 1a1 is the same as the outer diameter of the net body 1b.

[0026] Optionally, the number of the embedded hooks 2 is six or eight. Specifically, the embedded hooks 2 are evenly arranged in a circular array on the inner wall of the concrete well, with twos facing each other, and the force is balanced and stable.

[0027] The first reinforcing ring 3 is fixedly connected to the protruding part of the inner side of the plurality of pre-embedded hooks 2, that is, the part between the inner wall of the concrete well and the hook of the pre-embedded hook 2. Accordingly, when the concrete well is constructed, the first reinforcing ring 3 and the plurality of pre-embedded hooks 2 are first fixedly connected, then arranged on the inner wall near the wellhead, and finally the concrete is poured.

[0028] See also Figure 2 and Figure 3 The first reinforcement ring 3 and the multiple embedded hooks 2 can be welded or the bottom of the first reinforcement ring 3 is provided with a U-shaped clamp 3a for connection at the position corresponding to each embedded hook 2. In this way, after the first reinforcement ring 3 and the multiple embedded hooks 2 are fixedly connected, when they are set on the inner wall near the wellhead, the two nuts on the U-shaped clamp 3a are loosened to release the pressure block, and the position of the corresponding embedded hook 2 can be adjusted.

[0029] See also Figure 1 The first ends of the plurality of straight segments 1a2 on the outside extend beyond the outermost circular segment 1a1 and are connected to the first reinforcement ring 3. Specifically, the straight segment 1a2 and the first reinforcement ring 3 can be connected by tying a knot. In addition, the number of straight segments 1a2 can be the same as the number of pre-embedded hooks 2, and the two are staggered, that is, one straight segment 1a2 is between two adjacent pre-embedded hooks 2.

[0030] See also Figure 2 and Figure 3 Optionally, the anti-fall net structure also includes at least one second reinforcement ring 4. The second reinforcement ring 4 is connected to the embedded parts of multiple embedded hooks 2. Furthermore, the number of second reinforcement rings 4 is two, one has a larger diameter, and the other has a smaller diameter, and each second reinforcement ring 4 is provided with the same number of curved notches 4a as the embedded hooks 2. For any embedded hook 2, the corresponding two curved notches 4a are one facing upward and the other facing downward. Specifically, one of the reinforcement rings is below the embedded hook 2, and the notches are all facing upward, and the other reinforcement ring is above the embedded hook 2, and the notches are all facing downward. In this way, the embedded parts of multiple embedded hooks 2 are connected by the second reinforcement ring 4, and after the concrete is poured, the embedded hook 2 and the inner wall of the concrete well are more stable.

Claims

1. A fall prevention net structure, characterized in that: include The anti-fall net (1) is circular and comprises a base part (1a) and a net part (1b) covering the base part (1a); the base part (1a) comprises a plurality of concentric circular segments (1a1) with different diameters and a plurality of straight line segments (1a2) arranged in a circular array; A plurality of pre-buried hooks (2), each of which is a hook at the first end close to the anti-fall net (1) and connects the outermost circular segment (1a1) and the net body (1b); The first reinforcing ring (3) is fixedly connected to the protruding portions on the inner sides of the plurality of embedded hooks (2); the first ends of the plurality of straight line segments (1a2) on the outer sides protrude from the outermost circular segments (1a1) and are connected to the first reinforcing ring (3).

2. The anti-falling net structure according to claim 1, characterized in that: It also comprises at least one second reinforcement ring (4) connected to the embedded parts of the plurality of embedded hooks (2).

3. The anti-falling net structure according to claim 1, characterized in that: The bottom of the first reinforcement ring (3) is provided with a U-shaped clamp (3a) for connection at a position corresponding to each of the embedded hooks (2).

4. The anti-falling net structure according to claim 2, characterized in that: The number of the second reinforcement rings (4) is two, and each of the second reinforcement rings (4) is provided with the same number of curved notches (4a) as the number of pre-embedded hooks (2); for any pre-embedded hook (2), the corresponding two curved notches (4a) are one facing upwards and the other facing downwards.

5. The anti-falling net structure according to claim 1, characterized in that: The number of the pre-buried hooks (2) is six or eight.

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