Safety device for temporarily preventing mistaken entering in limited space

Abstract

The utility model discloses a safety device for temporarily preventing straying in a limited space. The circumferential end of the protective net is wound around the contraction rope by multiple circles and then slidably connected to the contraction rope, and the protective net is arranged on the outer wall of the limited space manhole in a sleeving mode. The two ends of the contraction rope penetrate through the multiple adjusting devices, and the multiple adjusting devices are arranged at intervals in the length direction of the contraction rope. The multiple adjusting devices are all configured to lock the contraction rope so as to control the shape of the protective net, and therefore the protective net can be matched with the limited space manholes of different shapes. And when the protective net needs to be adjusted to adapt to manholes with different sizes or shapes, the adjustment can be realized only by finely adjusting the contraction rope through the adjusting device without re-dismounting and re-mounting, so that the use convenience is improved. Therefore, through the characteristics of unique design, high adaptability, rapid deployment and adjustment capability, stability and durability, easy maintenance and storage and the like, an effective solution is provided for safety protection of the limited space, and the safety awareness and the protection effect are improved.

Description

Technical Field

[0001] This application relates to the technical field of safety protection equipment, and particularly to a temporary anti-misentry safety device for confined spaces. Background Art

[0002] During the operation and rescue in confined spaces, due to the narrow space, complex environment, and potential risk factors such as toxic gases and combustible substances, the accidental entry of non-operating personnel undoubtedly poses a huge hidden danger to operation safety.

[0003] However, although the currently widely used temporary anti-misentry safety devices on the market can protect personnel safety to a certain extent, their limitations are also obvious: for manholes of confined spaces with different sizes, different models of safety devices often need to be equipped, which not only increases the cost but also reduces the adaptability and flexibility of the devices. Therefore, it is particularly urgent to explore a more economical, efficient and adaptable anti-misentry solution. Summary of the Utility Model

[0004] By providing a temporary anti-misentry safety device for confined spaces in the embodiments of this application, the technical problem in the prior art that different models of safety devices need to be equipped for manholes of confined spaces with different sizes, resulting in high costs and poor adaptability, is solved.

[0005] The embodiments of this application provide a temporary anti-misentry safety device for confined spaces, including a protective net, a retractable rope, and a plurality of adjusting devices; the end parts of the circumferential direction of the protective net are respectively wound around the retractable rope for multiple turns and then slidably connected to the retractable rope, and the protective net is sleeved on the outer wall of the manhole of the confined space; both ends of the retractable rope pass through the plurality of adjusting devices, and the plurality of adjusting devices are arranged at intervals along the length direction of the retractable rope; the plurality of adjusting devices are all configured to lock the retractable rope to control the shape of the protective net so that the protective net adapts to manholes of different shapes of the confined space.

[0006] In a possible implementation manner, the temporary anti-misentry safety device for confined spaces further includes a warning sign; the warning sign is arranged in the middle of the protective net and on the side of the protective net away from the manhole of the confined space.

[0007] In a possible implementation manner, the protective net is woven with net ropes to form mesh holes.

[0008] In a possible implementation, the adjusting device includes a U-shaped rod, a fixture, and two locking nuts; external threads are provided at both ends of the U-shaped rod; the fixture is provided with two through holes, and both ends of the U-shaped rod respectively pass through the corresponding through holes; the two locking nuts are provided with internal threads corresponding to the external threads and are threadedly connected to both ends of the U-shaped rod; a receiving space is formed at the ends of the U-shaped rod and the fixture away from the locking nuts; both ends of the retractable rope pass through the receiving space; the fixture is configured to clamp the retractable rope.

[0009] In a possible implementation, an anti-slip layer is provided on the outer wall of the U-shaped rod.

[0010] In a possible implementation, the adjusting device further includes a tightening nut; a threaded hole is provided at the top of the U-shaped rod; one end of the tightening nut passes through the threaded hole and extends into the receiving space, and is configured to tighten the retractable rope.

[0011] In a possible implementation, the adjusting device further includes a soft pad; the soft pad is provided on the side of the fixture away from the locking nut.

[0012] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects:

[0013] The temporary anti-misentry safety device for confined spaces provided by the embodiments of the present application includes a protective net, a retractable rope, and a plurality of adjusting devices. In actual operation, the protective net is sleeved on the outer wall of the manhole of the confined space. The circumference of the protective net is connected to the retractable rope. The plurality of adjusting devices are arranged at intervals along the length direction of the retractable rope, and the retractable rope is locked, so that the shape of the protective net can be flexibly adjusted. This design enables the protective net to closely fit and adapt to manholes of various shapes and sizes in confined spaces. Whether it is circular, square or other irregular shapes, it can provide effective protection. The closely fitting protective net effectively prevents unauthorized personnel or objects from entering the confined space, thereby reducing the risk of safety accidents. The protective net is wound around the retractable rope and slidably connected, combined with the locking function of the adjusting device, to achieve a fast and simple installation process. Without complex tools or professional skills, the installation can be completed in a short time, improving work efficiency. When it is necessary to adjust the protective net to adapt to manholes of different sizes or shapes, only need to finely adjust the retractable rope through the adjusting device, without re-dismantling and reinstalling, greatly improving the convenience of use. The plurality of adjusting devices are distributed along the retractable rope, ensuring that the protective net can remain stable when subjected to external forces and is not easily deformed or loosened. This stability not only improves the protection effect but also extends the service life of the safety device. The design of the retractable rope allows the protective net to be rolled up and stored in a small space when not in use, which is convenient for carrying and storing. Therefore, the temporary anti-misentry safety device for confined spaces provided by the embodiments of the present application provides an effective solution for the safety protection of confined spaces through its unique design, high adaptability, fast deployment and adjustment capabilities, stability and durability, ease of maintenance and storage, etc., and significantly improves safety awareness and protection effect. Brief Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments of the present application. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0015] Figure 1 It is a schematic structural diagram of the temporary anti-misentry safety device for confined spaces provided by the embodiments of the present application;

[0016] Figure 2 It is a schematic structural diagram of the adjusting device provided by the embodiments of the present application.

[0017] Reference Signs: 1 - Protective Net; 2 - Retractable Rope; 3 - Adjusting Device; 31 - U-shaped Rod; 32 - Clamp; 33 - Locking Nut; 34 - Tightening Nut; 35 - Soft Pad; 36 - Accommodating Space; 4 - Warning Sign; 5 - Manhole of Confined Space. Detailed Embodiments

[0018] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without making creative efforts shall fall within the protection scope of the present application.

[0019] In the description of the embodiments of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application. The terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. In addition, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0020] The embodiments of the present application provide a temporary anti-misentry safety device for a confined space, as Figures 1 to 2 shown. The temporary anti-misentry safety device for a confined space includes a protective net 1, a contraction rope 2, and a plurality of adjusting devices 3. The end portions of the protective net 1 in the circumferential direction are respectively wound around the contraction rope 2 for multiple turns and then slidably connected to the contraction rope 2. The protective net 1 is sleeved on the outer wall of the manhole 5 of the confined space. Both ends of the contraction rope 2 pass through the plurality of adjusting devices 3, and the plurality of adjusting devices 3 are arranged at intervals along the length direction of the contraction rope 2. The plurality of adjusting devices 3 are all configured to lock the contraction rope 2 to control the shape of the protective net 1 so that the protective net 1 adapts to manholes 5 of different shapes in the confined space.

[0021] Specifically, both the protective net 1 and the contraction rope 2 of the present application are made of high-quality materials, having good corrosion resistance and wear resistance, and can be used for a long time in a harsh environment without being easily damaged.

[0022] It should be noted that in actual operation, the protective net 1 is sleeved on the outer wall of the manhole 5 of the confined space. The circumference of the protective net 1 is connected to the retractable rope 2. By arranging a plurality of adjusting devices 3 at intervals along the length direction of the retractable rope 2 and locking the retractable rope 2, the shape of the protective net 1 can be flexibly adjusted. This design enables the protective net 1 to closely fit and adapt to manholes 5 of various shapes and sizes in confined spaces. Whether it is circular, square or other irregular shapes, it can provide effective protection. The closely fitting protective net 1 effectively prevents unauthorized personnel or objects from accidentally entering the confined space, thereby reducing the risk of safety accidents. The protective net 1 is wound around the retractable rope 2 and slidably connected, combined with the locking function of the adjusting device 3, to achieve a quick and simple installation process. Without complex tools or professional skills, the installation can be completed in a short time, improving work efficiency. When it is necessary to adjust the protective net 1 to adapt to manholes of different sizes or shapes, only by slightly adjusting the retractable rope 2 through the adjusting device 3 can be achieved, without having to disassemble and reinstall, greatly improving the convenience of use. A plurality of adjusting devices 3 are distributed along the retractable rope 2, ensuring that the protective net 1 can remain stable when subjected to external forces and is not easily deformed or loosened. This stability not only enhances the protection effect but also extends the service life of the safety appliance. The design of the retractable rope 2 allows the protective net 1 to be rolled up and stored in a small space when not in use, facilitating carrying and storage. Therefore, the temporary anti-misentry safety appliance for confined spaces provided by the embodiments of the present application, through its unique design, high adaptability, fast deployment and adjustment capabilities, stability and durability, ease of maintenance and storage, etc., provides an effective solution for the safety protection of confined spaces and significantly enhances safety awareness and protection effect.

[0023] In the embodiments of the present application, the temporary anti-misentry safety appliance for confined spaces further includes a warning sign 4. The warning sign 4 is arranged in the middle of the protective net 1 and on the side of the protective net 1 away from the manhole 5 of the confined space.

[0024] It should be noted that the warning sign 4 of the present application exists in the form of eye-catching colors, patterns or words, which can attract people's attention and clearly inform that this area is a confined space with potential dangers and unauthorized entry is prohibited. Arranging the warning sign 4 in the middle of the protective net 1 enables people approaching the confined space from all directions to clearly see it. At the same time, being on the side of the protective net 1 away from the manhole 5 of the confined space avoids the possibility of ignoring the warning information due to line of sight obstruction, further improving the recognition degree of the warning sign 4.

[0025] In the embodiments of the present application, the protective net 1 is woven with net ropes and forms mesh holes.

[0026] It should be noted that the protective net 1 woven with net ropes usually has high compressive and impact resistance capabilities and can withstand a certain amount of external force impact without being easily damaged. The mesh design enables the protective net 1 to ensure the protective effect while not causing obvious visual obstruction.

[0027] In the embodiment of the present application, the adjusting device 3 includes a U-shaped rod 31, a clamp 32, and two locking nuts 33. External threads are provided at both ends of the U-shaped rod 31. The clamp 32 is provided with two through holes, and both ends of the U-shaped rod 31 pass through the corresponding through holes respectively. The two locking nuts 33 are provided with internal threads corresponding to the external threads and are threadedly connected to both ends of the U-shaped rod 31. A receiving space 36 is formed at the ends of the U-shaped rod 31 and the clamp 32 away from the locking nuts 33. Both ends of the retractable rope 2 pass through the receiving space 36. The clamp 32 is configured to clamp the retractable rope 2.

[0028] It should be noted that the two ends of the U-shaped rod 31 are matched with the locking nuts 33 through external threads, enabling the adjusting device 3 to flexibly adjust the clamping force between the U-shaped rod 31 and the clamp 32. This design allows the operator to precisely adjust the tension of the retractable rope 2 according to actual needs, thereby achieving fine control of the shape of the protective net 1. By tightening the locking nuts 33, the positions of the U-shaped rod 31 and the clamp 32 can be firmly fixed, ensuring that the retractable rope 2 will not loosen or shift after adjustment. This stable fixing method enables the protective net 1 to maintain the required shape and tension for a long time, improving the reliability of safety protection. When it is necessary to maintain or replace the retractable rope 2, the operator can also easily disassemble the adjusting device 3, complete the relevant operations and then reassemble it. This design reduces the maintenance cost and time and improves the work efficiency. Since the adjusting device 3 can precisely adjust and fix the retractable rope 2, it can adapt to manholes 5 in confined spaces of different shapes and sizes. Whether it is a circular, square or other irregularly shaped manhole, the protective net 1 can be closely fitted by adjusting the tension of the retractable rope 2 to achieve effective safety protection. By precisely adjusting and fixing the retractable rope 2, it can be ensured that the protective net 1 closely fits the manhole 5 in the confined space, forming a solid barrier, effectively preventing unauthorized personnel or animals from entering the confined space and reducing the risk of safety accidents. Therefore, the adjusting device 3 of the present application brings multiple effects such as precise adjustment and fixation, simple operation, wide application range, and improved safety for the temporary anti-misentry safety device in the confined space.

[0029] In the embodiment of the present application, an anti-slip layer is provided on the outer wall of the U-shaped rod 31.

[0030] It should be noted that the anti-slip layer of the present application enhances the stability of holding. When the operator uses the U-shaped rod 31 for various operations (such as adjustment, fixation, etc.), it can be more smooth and efficient, reducing the number of times and time required for repeated adjustment due to unstable holding.

[0031] In the embodiment of the present application, the adjusting device 3 further includes a fastening nut 34. A threaded hole is provided at the top of the U-shaped rod 31. One end of the fastening nut 34 passes through the threaded hole and extends into the accommodating space 36, and is configured to fasten the retractable rope 2.

[0032] It should be noted that by rotating the fastening nut 34, the fastening degree of the retractable rope 2 can be finely adjusted, so as to further clamp and fix the retractable rope 2.

[0033] In the embodiment of the present application, the adjusting device 3 further includes a soft pad 35. The soft pad 35 is arranged on the side of the fixture 32 away from the locking nut 33.

[0034] It should be noted that the soft pad 35 serves as a buffer layer to prevent scratches, indentations or damages caused by excessive clamping, thereby protecting the integrity of the retractable rope 2.

[0035] The various embodiments in this specification are described in a progressive manner. For the same or similar parts between the various embodiments, reference can be made to each other. The key point of each embodiment is to illustrate the differences from other embodiments.

[0036] The above embodiments are only used to illustrate the technical solutions of the present application, rather than limiting the present application; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the present application.

Claims

1. A temporary safety device for preventing accidental entry into a confined space, characterized in that: It comprises a protective net (1), a retractable rope (2) and a plurality of adjustment devices (3); The circumferential ends of the protective net (1) are respectively wound around the retractable rope (2) for multiple turns and are slidably connected to the retractable rope (2), and the protective net (1) is sleeved on the outer wall of the manhole (5) in the confined space; Both ends of the retractable rope (2) pass through a plurality of the adjusting devices (3), and the plurality of the adjusting devices (3) are arranged at intervals along the length direction of the retractable rope (2); The plurality of adjustment devices (3) are each configured to lock the retractable rope (2) to control the shape of the protection net (1) so that the protection net (1) can adapt to confined space manholes (5) of different shapes.

2. The confined space temporary anti-entry safety device according to claim 1, characterized in that: Also includes warning signs (4); The warning sign (4) is arranged in the middle of the protective net (1) and is located on a side of the protective net (1) away from the confined space manhole (5).

3. The confined space temporary anti-entry safety device according to claim 1, characterized in that: The protective net (1) is woven with net ropes to form mesh holes.

4. The confined space temporary anti-entry safety device according to claim 1, characterized in that: The adjusting device (3) comprises a U-shaped rod (31), a clamp (32) and two locking nuts (33); Both ends of the U-shaped rod (31) are provided with external threads; The fixture (32) is provided with two through holes, and the two ends of the U-shaped rod (31) respectively pass through the corresponding through holes; The two locking nuts (33) are provided with internal threads corresponding to the external threads, and are threadedly connected to the two ends of the U-shaped rod (31); The U-shaped rod (31) and the end of the clamp (32) away from the locking nut (33) form a receiving space; Both ends of the retractable rope (2) pass through the accommodating space (36); The clamp (32) is configured to clamp the retraction cord (2).

5. The confined space temporary anti-intrusion safety device according to claim 4, characterized in that: The outer wall of the U-shaped rod (31) is provided with an anti-slip layer.

6. The confined space temporary anti-entry safety device according to claim 4, characterized in that: The adjusting device (3) further comprises a tightening nut (34); The top of the U-shaped rod (31) is provided with a threaded hole; One end of the tightening nut (34) passes through the threaded hole and extends into the accommodating space (36), and is configured to tighten the retractable rope (2).

7. The confined space temporary anti-entry safety device according to claim 4, characterized in that: The adjustment device (3) further comprises a soft pad (35); The soft pad (35) is arranged on a side of the clamp (32) away from the locking nut (33).

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