Safe anti-falling facility for open cut tunnel construction

Abstract

The utility model relates to the technical field of high-altitude operation safety protection, in particular to a tunnel open cut tunnel construction safety anti-falling facility which comprises a plurality of frame structures and anti-falling structures fixed in the frame structures, the heights of the two sides of the tops of the frame structures are different, and elastic ropes are connected to the peripheries of the tops of the frame structures. The anti-falling structure comprises an anti-falling net, and the periphery of the anti-falling net is fixed to an elastic rope and is fixed to be an inclined plane. When the anti-falling device is used, the frame structure is arranged on the outer side of the open cut tunnel, the anti-falling structure is arranged in the frame structure, and the anti-falling net in the anti-falling structure is used for blocking personnel falling from the high altitude, so that the personnel falling from the high altitude are prevented from directly falling to the ground, and the safety risk is avoided; the elastic ropes are arranged on the periphery of the top of the frame structure, the periphery of the anti-falling net is fixed to the elastic ropes, the probability that the falling position of a high-altitude falling person coincides with the frame structure is reduced, and the possibility that the high-altitude falling person is accidentally injured by the frame structure when falling into the anti-falling net is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of safety protection for high-altitude operations, and more specifically, to a safety anti-falling facility for tunnel open cut construction. Background Technique

[0002] In tunnel engineering, in order to provide ventilation, lighting, and an escape exit in case of an emergency, some open cuts are regularly established in the tunnel. An open cut is usually a small opening cut out through the tunnel wall or the top, and usually provided with a fire door or other safety facilities to ensure that personnel can safely leave the tunnel through the open cut when needed.

[0003] During the construction of most tunnel open cuts, workers need to install external formwork. Due to the large height and width of the tunnel itself, workers need to move frequently during high-altitude operations. However, the external working environment of the tunnel is complex, and there are often pre-buried vertical steel bars on both sides of the outside of the tunnel. Once a worker falls, there is a great safety risk.

[0004] In view of this, we propose a safety anti-falling facility for tunnel open cut construction. Content of the Utility Model

[0005] The purpose of the utility model is to provide a safety anti-falling facility for tunnel open cut construction that can block people falling from high altitude, so as to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A safety anti-falling facility for tunnel open cut construction includes a number of frame structures arranged along the length direction of the outside of the tunnel open cut and an anti-falling structure fixed within the frame structure. The heights of both sides at the top of the frame structure are different, and elastic ropes are connected to the periphery of the top of the frame structure. The anti-falling structure includes an anti-falling net, and the periphery of the anti-falling net is fixed to the elastic ropes, so that the anti-falling net is fixed as an inclined plane.

[0008] As a further scheme of the utility model: The frame structure includes a number of first vertical rods, second vertical rods, and cross bars. The cross bars are arranged between the first vertical rod and the second vertical rod, between two first vertical rods, and between two second vertical rods through steel pipe buckles.

[0009] As a further scheme of the utility model: The first vertical rod is higher than the second vertical rod, and the height difference L between the first vertical rod and the second vertical rod ranges from 0.5m ≤ L ≤ 1.2m.

[0010] As a further solution of the utility model: the length of the frame structure is A, and the range of A is 5m ≤ A ≤ 7m; the width of the frame structure is B, and the range of B is 2m ≤ B ≤ 3m, and the overall height of the frame structure is C, and the range of C is 1.5m ≤ C ≤ 2.5m.

[0011] As a further solution of the utility model: one end of the cross bar is horizontally inserted and fixed on the tunnel surface, and one end of the first vertical rod and the second vertical rod are vertically inserted and fixed on the ground.

[0012] As a further solution of the utility model: several fixing ropes are arranged around the anti-falling net, and the fixing ropes are fixed on the elastic ropes by buckling.

[0013] As a further solution of the utility model: the elasticity of the elastic rope is lower than that of the anti-falling net

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. In the construction safety anti-falling facility for the open cut tunnel of this utility model, by setting a frame structure on the outside of the open cut tunnel of the tunnel and setting an anti-falling structure inside the frame structure, the anti-falling net in the anti-falling structure is used to block the personnel falling from a height, avoiding the personnel falling from a height directly falling to the ground and posing a safety risk.

[0016] 2. In the construction safety anti-falling facility for the open cut tunnel of this utility model, by setting elastic ropes around the top of the frame structure and fixing the four sides of the anti-falling net on the elastic ropes, the probability that the falling position of the personnel falling from a height coincides with the frame structure is reduced, and the possibility that the personnel falling from a height is accidentally injured by the frame structure when falling into the anti-falling net is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the overall structural schematic diagram of this solution;

[0018] Figure 2 is the overall structural top view schematic diagram of this solution.

[0019] The meanings of each label in the figure are:

[0020] 100, anti-falling structure; 101, anti-falling net; 102, fixing rope; 103, elastic rope;

[0021] 200, frame structure; 201, first vertical rod; 202, second vertical rod; 203, cross bar. DETAILED DESCRIPTION OF THE INVENTION

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Embodiment

[0024] As Figure 1 shown, this embodiment provides a safety anti-falling facility for tunnel open cut construction, including a number of frame structures 200. Considering that workers operate outside the tunnel, therefore, the frame structures 200 are arranged along the length direction of the outer side of the tunnel open cut. Considering the personal protection of personnel falling from a height, therefore, an anti-falling structure 100 is fixed inside the frame structures 200. Since the position of a person falling from a height is uncertain when falling, in order to reduce the possibility of a person falling from a height hitting the frame structure 200, therefore, the two sides at the top of the frame structure 200 are set at different heights. Elastic ropes 103 are connected to the periphery of the top of the frame structure 200. Using the elastic ropes 103 instead of steel pipes reduces the probability that the falling position of a person falling from a height coincides with the frame structure 200. The anti-falling structure 100 includes an anti-falling net 101. The four sides of the anti-falling net 101 are fixed on the elastic ropes 103, making the anti-falling net 101 fixed as an inclined plane, enabling a person falling from a height to slide on the anti-falling net 101, reducing the reaction force on the person falling from a height itself, and at the same time, facilitating the person falling from a height to come down from the lower side of the anti-falling net 101.

[0025] The improvement of this embodiment lies in: by setting a frame structure 200 on the outer side of the tunnel open cut and setting an anti-falling structure 100 inside the frame structure 200, using the anti-falling net 101 in the anti-falling structure 100 to block a person falling from a height, preventing the person falling from a height from directly falling to the ground and presenting a safety risk; by setting elastic ropes 103 around the top of the frame structure 200 and fixing the four sides of the anti-falling net 101 on the elastic ropes 103, the probability that the falling position of a person falling from a height coincides with the frame structure 200 is reduced, and the possibility of a person falling from a height being accidentally injured by the frame structure 200 when falling into the anti-falling net 101 is reduced.

[0026] A further specific introduction to the setting of the frame structure 200 is as follows. The frame structure 200 includes a number of first vertical rods 201, second vertical rods 202 and cross bars 203. The cross bars 203 are arranged between the first vertical rod 201 and the second vertical rod 202, between two first vertical rods 201 and between two second vertical rods 202 through steel pipe fasteners. Based on the height of the second vertical rod 202, fixing points for fixing the cross bars 203 are respectively set at the upper and lower parts of the second vertical rod 202, and a fixed surface enclosed by connecting the cross bars 203 is formed by these fixing points, so as to enhance the stability of the entire frame structure 200.

[0027] Considering further enhancing the stability of the frame structure 200, therefore, one end of the cross bar 203 is horizontally inserted and fixed on the tunnel surface, and one end of the first vertical rod 201 and the second vertical rod 202 is vertically inserted and fixed on the ground, thus forming fixed points on the outer side of the tunnel and the ground, providing support points for the entire frame structure 200.

[0028] Considering that the inclination angle of the inclined plane formed by the anti-falling net 101 needs to be appropriate. Otherwise, when a person falling from a height falls into the anti-falling net 101, if the inclination angle of the inclined plane is too small, the person falling from a height can only rely on the anti-falling net 101 for buffering. If the inclination angle is too large, the person falling from a height will roll out of the anti-falling net 101 along with inertia. Therefore, the first vertical rod 201 is higher than the second vertical rod 202, and the height difference L between the first vertical rod 201 and the second vertical rod 202 ranges from 0.5 m ≤ L ≤ 1.2 m. The length of the frame structure 200 is A, and the range of A is 5 m ≤ A ≤ 7 m; the width of the frame structure 200 is B, and the range of B is 2 m ≤ B ≤ 3 m. Within this range, the inclination angle of the inclined plane formed by the anti-falling net 101 can further buffer the person falling from a height, and at the same time, it will not let the person falling from a height roll out of the anti-falling net 101, so that the body of the person falling from a height touches the embedded vertical steel bars.

[0029] Considering that a person falling from a height falls onto the elastic rope 103, using the characteristic that the elasticity of the elastic rope 103 is lower than that of the anti-falling net 101, the center of gravity of the person falling from a height is biased towards the anti-falling net 101, which is convenient for the person falling from a height to adjust their posture and get off the anti-falling net 101.

[0030] At the same time, the overall height of the frame structure 200 should not be too low or too high. If it is too low, when a person falling from a height falls onto the anti-falling net 101, the reaction force received is large, and at the same time, the anti-falling net 101 is also easy to touch the ground, posing a risk of secondary injury to the person falling from a height. If it is too high, on the original basis, the stability of the entire frame structure 200 is insufficient, and additional cross bars 203 are required to reinforce the frame structure 200, which instead increases the cost. Therefore, the overall height of the frame structure 200 is C, and the range of C is 1.5 m ≤ C ≤ 2.5 m.

[0031] Such as Figure 2As shown in the figure, in order to facilitate the fixing of the anti-falling net 101 on the elastic rope 103, several fixing ropes 102 are provided around the anti-falling net 101. The fixing ropes 102 are fixed to the elastic rope 103 by buckling, and the fixing method is simple and fast.

[0032] In summary, the working principle of this solution is as follows:

[0033] Take the first vertical rod 201, the second vertical rod 202 and the cross bar 203. Insert one end of the cross bar 203 into the insertion hole opened outside the open cut of the tunnel. Vertically insert the first vertical rod 201 and the second vertical rod 202 into the ground on one side against the cross bar 203. Take several steel pipe buckles to fix the joints of the cross bar 203 and the first vertical rod 201 and the joints of the cross bar 203 and the second vertical rod 202 to complete the erection of the entire frame structure 200. Take several elastic ropes 103, and the elastic ropes 103 are fixedly connected to the top of the frame structure 200. Then take the anti-falling net 101, and fix the fixing ropes 102 of the anti-falling net 101 to the elastic ropes 103 by buckling, so that the anti-falling net 101 is fixed in an inclined manner on the top of the frame structure 200. When a person falling from a height falls onto the inclined anti-falling net 101, the anti-falling net 101 buffers the person falling from a height. And under the action of gravity, the person falling from a height slowly slides on the anti-falling net 101 to the lower side, which is convenient for the person falling from a height to adjust their posture until they get off the anti-falling net 101. When a person falling from a height falls onto the elastic rope 103, the elasticity of the elastic rope 103 is lower than that of the anti-falling net 101, which makes the center of gravity of the person falling from a height shift towards the anti-falling net 101 side, facilitating the person falling from a height to adjust their posture and get off the anti-falling net 101.

[0034] Although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0035] Therefore, the above description is only a preferred embodiment of the present application and is not used to limit the scope of implementation of the present application; that is, all equivalent transformations made according to the scope of the claims of the present application are within the protection scope of the claims of the present application.

Claims

1. A safety anti-falling facility for tunnel open hole construction, comprising a plurality of frame structures (200) arranged along the length direction of the outer side of the tunnel open hole and an anti-falling structure (100) fixed in the frame structure (200), characterized in that: The heights of the two sides of the top of the frame structure (200) are different. The top of the frame structure (200) is connected to elastic ropes (103) on all sides. The anti-falling structure (100) comprises an anti-falling net (101). The anti-falling net (101) is fixed on the elastic ropes (103) on all sides, so that the anti-falling net (101) is fixed to an inclined surface.

2. The tunnel open hole construction safety anti-falling facility according to claim 1 is characterized by: The frame structure (200) comprises a plurality of first vertical poles (201), second vertical poles (202) and cross poles (203); the cross poles (203) are arranged between the first vertical poles (201) and the second vertical poles (202), two first vertical poles (201) and two second vertical poles (202) through steel pipe buckles.

3. The tunnel open hole construction safety anti-falling facility according to claim 2 is characterized by: The first vertical pole (201) is higher than the second vertical pole (202), and the height difference L between the first vertical pole (201) and the second vertical pole (202) is in the range of 0.5m≤L≤1.2m.

4. The tunnel open hole construction safety anti-falling facility according to claim 1 is characterized by: The length of the frame structure (200) is A, and the range of A is 5m≤A≤7m; the width of the frame structure (200) is B, and the range of B is 2m≤B≤3m; the overall height of the frame structure (200) is C, and the range of C is 1.5m≤C≤2.5m.

5. The tunnel open hole construction safety anti-falling facility according to claim 2 is characterized by: One end of the crossbar (203) is horizontally inserted into the tunnel surface for fixing, and one end of the first vertical bar (201) and the second vertical bar (202) is vertically inserted into the ground for fixing.

6. The tunnel open hole construction safety anti-falling facility according to claim 1 is characterized by: A plurality of fixing ropes (102) are arranged around the anti-falling net (101), and the fixing ropes (102) are fixed to the elastic ropes (103) by buckling.

7. The tunnel open hole construction safety anti-falling facility according to claim 1 is characterized by: The elasticity of the elastic rope (103) is lower than the elasticity of the anti-falling net (101).

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