A hoistway guard net

By improving the structural design of the shaft protection net, convenient installation and stable connection were achieved, the secondary protection capability was enhanced, construction safety was ensured, and the problems of unstable installation and lack of secondary protection of the existing shaft protection net were solved.

CN224495885UActive Publication Date: 2026-07-14

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Filing Date
2025-08-11
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

The existing shaft protection netting is not securely installed and is cumbersome to operate, lacks secondary protection measures, and poses a safety hazard.

Method used

The woven mesh is connected to the hanging frame via hanging rings and grooves, and is equipped with hooks for easy installation. The metal support mesh provides secondary protection, and the limit bolts ensure a secure connection. It is also equipped with an ultrasonic ranging module and a flashing light for safety warnings.

Benefits of technology

The installation process has been simplified, construction efficiency has been improved, and the stability and safety of the protective net have been enhanced. The metal support net can effectively intercept falling objects, and the ultrasonic ranging module and flashlight provide timely warnings.

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Abstract

The utility model relates to the technical field of protective net, and disclose a hoistway protective net, include: woven net and hang frame, the upper end fixed setting of woven net has six even distribution along the annular ring, the inside of hang frame is provided with the hanging groove, and the ring is adapted with the hanging groove, the hook is fixedly set in the upper end of hang frame, the metal net support is fixedly set in the lower end of hang frame, the limit bolt is installed in the inside upper end of hang frame, the utility model discloses through ring and hanging groove adaptation, the hook collocation realizes convenient assembly and disassembly, promotes construction efficiency, and the metal net support is protected secondly, and the safety reliability is strengthened, and the limit bolt guarantees the connection stability, prevents the ring from coming out, and improves the overall stability of protective net.
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Description

Technical Field

[0001] This utility model relates to the field of protective net technology, specifically a well shaft protective net. Background Technology

[0002] Shaft safety nets are safety protection facilities installed inside shafts (such as elevator shafts, building shafts, etc.) to prevent people and objects from falling and to ensure the safety of personnel during construction or use. They are typically made of materials with a certain strength and toughness, forming a mesh structure of a certain area to intercept falling objects.

[0003] However, existing shaft protection nets have many shortcomings:

[0004] On the one hand, its installation structure is not stable enough and the operation is cumbersome. For example, the common method of tying with ropes is not only not strong enough, but also very troublesome during installation and disassembly, which consumes a lot of time and manpower.

[0005] On the other hand, the overall structure of the protective net lacks effective secondary protection measures. Once the main protective net is damaged or the connection fails, it cannot effectively prevent people or objects from falling in time, which poses a great safety hazard. Therefore, a shaft protective net is proposed. Utility Model Content

[0006] In view of the shortcomings of the existing technology, this utility model provides a well shaft protection net to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a well shaft protection net, comprising:

[0008] The woven mesh and the hanging frame are provided with six hanging rings evenly distributed in a ring at the upper end of the woven mesh, and the hanging frame has a hanging groove inside, and the hanging rings are adapted to the hanging groove.

[0009] Hooks are fixedly installed at the upper end of the hanger;

[0010] Metal mesh support, fixedly installed at the lower end of the hanging frame;

[0011] The limit bolt is installed on the upper part of the inside of the bracket.

[0012] Preferably, the hook and the hanger are fixed together by screws, and the metal mesh is fixed together with the hanger by screws, with the metal mesh serving as secondary protection.

[0013] Preferably, a limiting strip is provided on one side of the hook, and the limiting strip is connected to the hook by a spring. The limiting strip limits the hook when it is hooked on the fixing ring inside the wellhead, preventing the hook from falling off.

[0014] Preferably, the upper end of the hook is provided with a top shell, and the top shell is fixed to the hook by screws. A button battery is installed inside the top shell to power the flash and the ultrasonic ranging module.

[0015] Preferably, a flash lamp is provided on one side of the upper end face of the top shell, and the flash lamp is fixedly connected to the top shell. The flash lamp is used to emit a flashing prompt.

[0016] Preferably, an ultrasonic ranging module is provided on the other side of the upper end face of the top shell, and the ultrasonic ranging module is fixedly connected to the top shell.

[0017] Preferably, one end of the limiting bolt passes through the hanger and extends to the upper end of the hanging groove. The limiting bolt is connected to the hanger by a threaded engagement. The limiting bolt is screwed into the hanging groove to limit the hanging ring and prevent it from falling off.

[0018] Compared with the prior art, this utility model provides a well shaft protection net, which has the following beneficial effects:

[0019] This utility model features a woven mesh and a hanging frame connected via hanging rings and grooves, with hooks for convenient installation. This eliminates the cumbersome traditional method of securing the mesh with ropes, making installation and disassembly simpler and faster, thus improving construction efficiency. The metal support net serves as a secondary auxiliary protective structure, effectively intercepting falling objects in case of accidental damage or connection problems with the woven mesh, enhancing the safety and reliability of the protection. The limiting bolts further ensure the stability of the connection between the hanging rings and grooves, preventing the rings from coming loose and improving the overall stability of the protective net. Attached Figure Description

[0020] Figure 1 This is a three-dimensional view of the overall structure of this utility model;

[0021] Figure 2 This is a perspective view of the hook and hanger structure of this utility model;

[0022] Figure 3 This is a three-dimensional view of the woven mesh structure of this utility model;

[0023] Figure 4 This is a three-dimensional view of the metal mesh support structure of this utility model.

[0024] In the diagram: 1. Woven mesh; 2. Metal support mesh; 3. Hanging ring; 4. Hanging rack; 5. Hook; 6. Hanging groove; 7. Limiting bolt; 8. Limiting strip; 9. Top shell; 10. Ultrasonic ranging module; 11. Flash light. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] This utility model provides a technical solution: a well shaft protection net. Please refer to [link / reference]. Figure 1 , Figure 2 , Figure 3 and Figure 4 ,include:

[0027] The woven net 1 and the hanging frame 4 are provided. The upper end of the woven net 1 is fixed with six hanging rings 3 evenly distributed in a ring. The hanging frame 4 has a hanging groove 6 inside, and the hanging rings 3 are adapted to the hanging groove 6.

[0028] Hook 5 is fixedly installed at the upper end of bracket 4;

[0029] Metal mesh support 2 is fixedly installed at the lower end of the bracket 4;

[0030] Limit bolt 7 is installed on the upper part of the inside of bracket 4.

[0031] Please see Figure 1 , Figure 3 and Figure 4 Hook 5 is fixed to bracket 4 with screws, and metal mesh 2 is fixed to bracket 4 with screws. Metal mesh 2 is used for secondary protection.

[0032] Please see Figure 2 A limiting strip 8 is provided on one side of the inside of the hook 5, and the limiting strip 8 is connected to the hook 5 by a spring. The limiting strip 8 limits the hook 5 when it is hung on the fixing ring inside the wellhead, preventing the hook 5 from falling off.

[0033] Please see Figure 1 and Figure 2 The top end of the hook 5 is provided with a top shell 9, and the top shell 9 is fixed to the hook 5 by screws. A button battery is installed inside the top shell 9 to power the flash lamp 11 and the ultrasonic ranging module 10.

[0034] Please see Figure 1 and Figure 2 A flash lamp 11 is provided on one side of the upper end face of the top shell 9, and the flash lamp 11 is fixedly connected to the top shell 9. The flash lamp 11 is used to emit a flash warning.

[0035] Please see Figure 1 and Figure 2An ultrasonic ranging module 10 is provided on the other side of the upper end face of the top shell 9, and the ultrasonic ranging module 10 is fixedly connected to the top shell 9.

[0036] Please see Figure 1 , Figure 2 and Figure 3 One end of the limiting bolt 7 passes through the bracket 4 and extends to the upper end of the hanging groove 6. The limiting bolt 7 is connected to the bracket 4 by thread. The limiting bolt 7 is screwed into the hanging groove 6, thereby limiting the hanging ring 3 and preventing the hanging ring 3 from falling off.

[0037] This solution involves attaching hook 5 to the fixing ring inside the wellhead. During the suspension process, the limiting strip 8 collides with the fixing ring, causing the limiting strip 8 to rotate. When hook 5 is fully engaged, the coil spring drives the limiting strip 8 to reset, thus fixing hook 5 to the outside of the fixing ring and improving the anti-detachment performance of hook 5.

[0038] Connect the hanging ring 3 at the upper end of the woven mesh 1 to the hanging frame 4. When the hanging ring 3 enters the hanging groove 6, rotate the limiting bolt 7. The limiting bolt 7 and the hanging frame 4, under the threaded engagement, convert the rotational motion of the limiting bolt 7 into linear motion, thereby closing the hanging groove 6 and preventing the hanging ring 3 from detaching.

[0039] When the manhole cover is under construction or accidentally lifted, the distance between the manhole cover and the ultrasonic ranging module 10 will change. When the distance exceeds the set threshold (e.g., the distance between the manhole cover and the ultrasonic ranging module 10 when the manhole cover is normally closed), the ultrasonic ranging module 10 outputs a signal to trigger the flashlight 11 to flash, thereby providing a warning and preventing people from falling into the manhole. The ultrasonic ranging module 10 is a low-power module and is powered by a button battery.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A well shaft protection net, characterized in that, include: The woven net (1) and the hanging rack (4) are provided with six hanging rings (3) evenly distributed along the ring at the upper end of the woven net (1). The hanging rack (4) has a hanging groove (6) inside, and the hanging rings (3) are adapted to the hanging groove (6). Hook (5) is fixedly installed at the upper end of the bracket (4); Metal mesh (2) is fixedly installed at the lower end of the bracket (4); The limiting bolt (7) is installed on the upper part of the inside of the bracket (4).

2. The well shaft protection net according to claim 1, characterized in that: The hook (5) is fixed to the bracket (4) by screws, and the metal mesh (2) is fixed to the bracket (4) by screws.

3. The well shaft protection net according to claim 1, characterized in that: A limiting strip (8) is provided on one side of the inside of the hook (5), and the limiting strip (8) and the hook (5) are connected by a spring.

4. The well shaft protection net according to claim 1, characterized in that: The upper end of the hook (5) is provided with a top shell (9), and the top shell (9) and the hook (5) are fixed by screws.

5. A well shaft protection net according to claim 4, characterized in that: A flash lamp (11) is provided on one side of the upper end face of the top shell (9), and the flash lamp (11) is fixedly connected to the top shell (9).

6. A well shaft protection net according to claim 5, characterized in that: An ultrasonic ranging module (10) is provided on the other side of the upper end face of the top shell (9), and the ultrasonic ranging module (10) is fixedly connected to the top shell (9).

7. A well shaft protection net according to claim 1, characterized in that: One end of the limiting bolt (7) passes through the bracket (4) and extends to the upper end of the hanging groove (6). The limiting bolt (7) and the bracket (4) are connected by a threaded connection.