Turnover type operation layer vertical shaft horizontal protection device

Abstract

The utility model relates to the technical field of building construction safety protection equipment, in particular to a turnover type operation layer vertical shaft horizontal protection device which comprises a frame body, a hanging ring assembly and a protective fence. The frame body is composed of a main frame body and a slidable expansion frame body, the main frame body is conical, sliding rods of the expansion frame body are in sliding connection with fixing pipes of the main frame body, telescopic rod pieces are arranged between the adjacent sliding rods, and reflective warning strips are arranged on fixing sleeves. The main frame is provided with a limiting assembly, the lifting ring assembly comprises a rotatable lifting ring body, and supporting feet with wedge nails and a treading part are arranged at the bottom of the extension frame. The size of the device can be adjusted to adapt to different vertical shafts, convenient hoisting is achieved through the hoisting ring assembly, stable placement on the uneven ground is guaranteed through the supporting legs and the wedge nails, construction safety is guaranteed through the reflective warning strips, the protective fences and the buffer structures, all the components are stably connected, turnover use is facilitated, and the problems that a traditional protective device is poor in adaptability, inconvenient to install and the like are effectively solved.

Description

Technical Field

[0001] This application relates to the field of construction safety protection equipment technology, and in particular to a reusable working layer vertical shaft horizontal protection device. Background Technology

[0002] In the construction process, shafts serve as crucial vertical passages, making the safety protection of their horizontal working levels paramount. Traditional horizontal safety devices for shafts mostly employ fixed structures, which present numerous problems during use.

[0003] Fixed protective devices, with their fixed dimensions, are difficult to adapt to the protection needs of shafts of different sizes. When encountering shafts of different specifications, new protective devices need to be fabricated, which not only wastes materials and increases construction costs but also extends the construction period. For example, in some large-scale integrated building projects, there are shafts of various specifications. If traditional fixed protective devices are used, they need to be customized for each type of shaft, which will undoubtedly greatly increase material procurement and manufacturing costs, and will also cause delays in the construction period due to waiting for customized protective devices.

[0004] Meanwhile, the ground conditions at construction sites are complex and varied, often uneven. Traditional vertical shaft horizontal protective devices, lacking effective ground fixation and self-adjusting structures, are difficult to maintain stability when placed on uneven ground, and are prone to swaying. This swaying not only reduces the protective effect of the device but may also cause it to loosen or even tip over, seriously threatening the lives of construction workers. Furthermore, swaying protective devices can also affect the normal operation of construction equipment, increasing safety hazards during construction.

[0005] To address this issue, a reusable working layer vertical shaft horizontal protection device has been invented to solve the problems mentioned in the background art. Utility Model Content

[0006] This utility model aims to design a reusable horizontal protection device for vertical shafts in the working layer. Through innovative structural design, it solves the problem that traditional fixed protection devices cannot adapt to vertical shafts of different sizes, avoiding material waste, increased costs, and construction delays caused by size mismatch. At the same time, it provides effective ground fixing and adjustment functions for uneven ground conditions at construction sites, ensuring that the protection device remains stable in complex ground environments, preventing shaking, loosening, or tipping, eliminating threats to the life safety of construction personnel and the operation of construction equipment, and improving the safety and reliability of horizontal protection for vertical shafts during construction.

[0007] This application provides a reusable working layer vertical shaft horizontal protection device, which adopts the following technical solution: it includes a frame body, wherein the frame body includes a main frame and an extension frame, and the extension frame is slidably installed at the bottom of the main frame; it also includes at least one set of lifting ring assemblies, which are disposed at the top of the frame body for hoisting and fixing; and the side of the frame body is provided with a protective railing.

[0008] Optionally, the main frame has a tapered structure and includes four fixed tubes. The extension frame includes a sliding rod, which is slidably connected to the fixed tube on its corresponding side. Multiple protective rods are provided between two adjacent fixed tubes.

[0009] Optionally, multiple telescopic rods are provided between two adjacent sliding rods. Each telescopic rod includes a fixed sleeve located between two adjacent sliding rods. Sliding rods are slidably connected to both sides of the fixed sleeve. A sliding seat is provided at the other end of each sliding rod. A sliding groove is provided on the sliding rod. The sliding seat is slidably connected to the corresponding side of the sliding groove. The sliding seat and the sliding rod are hinged together.

[0010] Optionally, the fixing sleeve is provided with a reflective warning strip.

[0011] Optionally, the main frame is provided with a limiting component that can limit the position of the sliding rod. The limiting component includes a pin that is detachably connected to the fixed tube. The sliding rod has multiple limiting holes arranged along its length direction, and the pin can be inserted into the limiting holes.

[0012] Optionally, the lifting ring assembly includes a lifting ring base, which is fixed to the top of the frame body, and a rotatable lifting ring body is provided on the lifting ring base.

[0013] Optionally, multiple springs are provided between two adjacent telescopic rods and connected by the springs.

[0014] Optionally, the bottom of the extended frame is provided with a support foot, and the bottom of the support foot is provided with a plurality of wedges.

[0015] Optionally, the support foot is located at the bottom of the sliding rod and has a stepping part.

[0016] Optionally, a hook is provided on the inner side of the support leg.

[0017] In summary, this application includes the following beneficial technical effects:

[0018] 1. Flexible Size Adaptation: The sliding connection design between the main frame and the extension frame allows the protective device to be freely adjusted according to different shaft sizes. Through the sliding of the sliding rod within the fixed pipe, combined with the synergistic effect of telescopic rods, springs, and other structures, the overall size of the protective device can be quickly adjusted, perfectly adapting to various shaft specifications. This greatly improves the device's versatility and reduces repeated manufacturing costs and construction delays.

[0019] 2. Ground Stability and Adaptability: The extended frame's bottom support feet and wedge design effectively insert into uneven ground, enhancing friction and achieving a stable fixation. Simultaneously, the support feet, combined with the frame's adjustable function, adapt to varying ground elevations, ensuring the protective device remains level and stable even in complex terrain, preventing swaying, loosening, or tipping, and providing reliable safety for construction personnel and equipment.

[0020] 3. Highly efficient installation and disassembly: The lifting ring assembly facilitates the overall hoisting and fixing of the protective device using hoisting equipment. Compared with traditional manual disassembly and assembly methods, it greatly improves the efficiency of installation and disassembly, reduces labor costs, minimizes damage to the device caused by frequent disassembly and assembly, and improves the turnover efficiency of the device.

[0021] 4. Enhanced safety protection: The guardrails on the sides of the main frame can effectively prevent construction workers from falling accidentally; the reflective warning strips on the fixed sleeves can provide a clear warning when there is insufficient light; the buffer function provided by the telescopic rods and springs can reduce the impact force when construction workers accidentally collide, thus comprehensively improving the safety protection performance of the protective device.

[0022] 5. Sturdy and durable structure: The tapered structure of the main frame enhances the overall stability of the device. The limiting component can accurately fix the position of the sliding rod through the cooperation of the pin and the limiting hole, ensuring the stability of the extended frame after adjustment, ensuring the long-term stable use of the protective device, and reducing maintenance costs. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the device. Figure I ;

[0024] Figure 2 This is a schematic diagram of the overall structure of the device. Figure II ;

[0025] Figure 3 This is the front view of the device;

[0026] Figure 4 This is a cross-sectional schematic diagram of the overall structure of this device;

[0027] Figure 5 This is a schematic diagram of the sliding rod of this device;

[0028] The components are as follows: 1. Frame body; 2. Main frame; 3. Extension frame; 4. Hanging ring assembly; 5. Guardrail; 6. Fixing tube; 7. Sliding rod; 8. Guardrail; 9. Telescopic rod; 10. Fixing sleeve; 11. Sliding rod; 12. Sliding seat; 13. Sliding groove; 14. Reflective warning strip; 15. Limiting assembly; 16. Pin; 17. Limiting hole; 18. Hanging ring base; 19. Spring; 20. Support foot; 21. Wedge; 22. Step part; 23. Hook; 24. Hanging ring body. Detailed Implementation

[0029] The present application will be further described in detail below with reference to the accompanying drawings. In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present utility model.

[0030] Reference Figure 1 One embodiment shown is a reusable working-level vertical shaft horizontal protection device comprising a frame body 1, a lifting ring assembly 4, and a guardrail 5. The frame body 1 consists of a main frame 2 and an extension frame 3. The extension frame 3 is installed at the bottom of the main frame 2 via a specific sliding structure. Specifically, the extension frame 3 can slide along a pre-set track or groove 13 at the bottom of the main frame 2, achieving relative displacement between the two. This sliding installation method allows the dimensions of the frame body 1 to be flexibly adjusted according to actual needs. The lifting ring assembly 4 is installed on the top of the frame body 1 using welding, bolting, or other fixing methods, providing a connection point for hoisting the protection device and facilitating the overall handling and installation of the protection device using hoisting equipment. The guardrail 5 is fixed to the side of the frame body 1 using welding, bolting, or snap-fit ​​methods, forming a protective barrier to effectively prevent construction personnel from accidentally falling. In this embodiment, the main frame 2 serves as the basic support structure for the entire protective device, providing an installation foundation and sliding guide for the extended frame 3; the sliding installation of the extended frame 3 allows the protective device to adapt to shafts of different sizes, improving the device's versatility; the fixed installation of the lifting ring assembly 4 ensures the stability and safety of the protective device during the hoisting process; the connection between the guardrail 5 and the frame body 1 enhances the protective device's role in protecting construction personnel.

[0031] The implementation principle of the above embodiment is as follows: when protection is required for shafts of different sizes, the size of the frame body 1 is adjusted by sliding the extension frame 3 to fit the size of the shaft; the adjusted protective device is hoisted to the working level of the shaft using the lifting ring assembly 4; the guardrail 5 forms protection on the side of the frame body 1 to ensure the safety of construction personnel. After construction is completed, the protective device is also lifted and dismantled using the lifting ring assembly 4 for reuse.

[0032] Reference Figure 1 , Figure 3 One embodiment shown is as follows: The main frame 2 has a tapered structure and is composed of four fixed tubes 6 as the main supporting components. The extension frame 3 includes sliding rods 7, each of which is inserted into and slidably connected to the interior of the four fixed tubes 6 of the main frame 2. The interior of each fixed tube 6 provides space for the sliding rods 7 to slide. Multiple protective rods 8 are fixedly connected between adjacent fixed tubes 6 by welding, bolting, or other methods, further enhancing the structural strength and stability of the main frame 2, while also providing a certain degree of protection. In this embodiment, the tapered structure of the main frame 2 provides better stability and can withstand greater external forces; the fixed tubes 6 provide sliding tracks and supports for the sliding rods 7, allowing the extension frame 3 to slide flexibly on the main frame 2; the protective rods 8 connect adjacent fixed tubes 6, enhancing the overall rigidity of the main frame 2 and, to a certain extent, preventing objects from falling through the gaps in the frame, thus improving the protective effect.

[0033] The implementation principle of the above embodiment is as follows: during use, according to the size of the shaft, the sliding rod 7 slides within the fixed pipe 6 to adjust the position of the extended frame 3 and adjust the size of the frame body 1; the tapered main frame 2 and the protective rod 8 connecting the fixed pipe 6 ensure the stability of the frame body 1 during adjustment and use, providing reliable support for the entire protective device.

[0034] Reference Figure 1 , Figure 3 , Figure 5One embodiment shown is as follows: two adjacent sliding rods 7 are connected by multiple telescopic rods 9. Each telescopic rod 9 includes a fixed sleeve 10, which is fixed to a suitable position between two adjacent sliding rods 7 by welding, bolting, or other methods, serving as the fixed foundation for the telescopic rod 9. The fixed sleeve 10 has internal spaces or tracks on both sides for sliding rods 11 to slide within, allowing the rods 11 to slide and extend / retract, thus realizing the telescopic function of the telescopic rod 9. The other end of the rod 11 is hinged to a sliding seat 12, allowing the sliding seat 12 to rotate relative to the rod 11 at a certain angle. Simultaneously, a groove 13 is provided on the sliding rod 7, and the sliding seat 12 is embedded in and slides within the groove 13. This double sliding connection method allows the telescopic rod 9 to flexibly adapt to changes in the size of the expansion frame 3. In this embodiment, the fixing sleeve 10 fixes the telescopic rod 9 between adjacent sliding rods 7, ensuring the stability of the installation position of the telescopic rod 9; the sliding connection between the sliding rod 11 and the fixing sleeve 10 allows the telescopic rod 9 to extend and retract according to the size of the extension frame 3; the hinge between the sliding rod 11 and the sliding seat 12 and the sliding connection between the sliding seat 12 and the sliding groove 13 of the sliding rod 7 ensure that the telescopic rod 9 can rotate and move flexibly during the extension and retraction process, adapt to different size changes, and enhance the structural stability and flexibility of the protective device during adjustment.

[0035] The implementation principle of the above embodiment is that when the sliding rod 7 of the extended frame 3 slides in the fixed tube 6 to adjust the frame size, the telescopic rod 9 between adjacent sliding rods 7 slides in the fixed sleeve 10 through the sliding rod 11, the sliding seat 12 slides in the sliding groove 13 of the sliding rod 7, and rotates through hinges, automatically adjusting the length and angle to adapt to the change of frame size, and ensuring the integrity and stability of the protective device structure during the adjustment process.

[0036] Reference Figure 1 , Figure 3 One embodiment shown is as follows: a reflective warning strip 14 is connected to the surface of the fixing sleeve 10 of the telescopic rod 9 by means of adhesive, bolt connection, or snap-fit. The reflective warning strip 14 is tightly attached to the fixing sleeve 10 and can reflect light under illumination, thus providing a clear warning effect. In this embodiment, the fixing sleeve 10 serves as the mounting carrier for the reflective warning strip 14, providing it with a stable installation position; the connection between the reflective warning strip 14 and the fixing sleeve 10 allows the reflective warning strip 14 to be firmly fixed to the protective device. In low-light construction environments, it attracts the attention of construction workers by reflecting light, reminding them to pay attention to safety and effectively reducing the probability of safety accidents.

[0037] The implementation principle of the above embodiment is that when construction is carried out in dim light or at night, the external light shines on the reflective warning strip 14 on the fixed sleeve 10, and the reflective warning strip 14 reflects the light out, so as to remind the construction personnel of the existence of the protective device in a conspicuous manner, so as to avoid the construction personnel from approaching or colliding with the protective device due to negligence, and to ensure construction safety.

[0038] Reference Figure 1 , Figure 5 One embodiment shown is as follows: a limiting component 15 is installed on the main frame 2. The limiting component 15 includes a pin 16, which is connected to the fixing tube 6 via a detachable connection, such as a plug-in connection. The fixing tube 6 has a through hole for the pin 16 to pass through, allowing the pin 16 to be inserted into a limiting hole 17 on the sliding rod 7. Multiple limiting holes 17 are distributed along the length of the sliding rod 7, and the positions of these limiting holes 17 correspond to the through holes on the fixing tube 6, ensuring accurate insertion of the pin 16. In this embodiment, the fixing tube 6 provides the mounting position and insertion channel for the pin 16. The detachable connection between the pin 16 and the fixing tube 6 allows for easy insertion and removal of the pin 16. The limiting holes 17 on the sliding rod 7 cooperate with the pin 16. When the expansion frame 3 is adjusted to a suitable size, inserting the pin 16 into the corresponding limiting hole 17 effectively restricts the sliding of the sliding rod 7, fixes the position of the expansion frame 3, and ensures the stability of the protective device during use.

[0039] The implementation principle of the above embodiment is as follows: when adjusting the size of the extension frame 3, the pin 16 is first pulled out from the limiting hole 17 of the fixed tube 6 and the sliding rod 7, so that the sliding rod 7 can slide freely in the fixed tube 6; after the extension frame 3 is adjusted to the required size, the pin 16 is inserted into the corresponding limiting hole 17 on the sliding rod 7. Through the cooperation of the pin 16 and the limiting hole 17, the sliding rod 7 is fixed in the fixed tube 6, preventing the extension frame 3 from sliding due to external force during use, and ensuring the dimensional stability and structural safety of the protective device.

[0040] Reference Figure 1 , Figure 3One embodiment shown is as follows: the lifting ring assembly 4 consists of a lifting ring base 18 and a lifting ring body 24. The lifting ring base 18 is fixedly installed on the top of the frame body 1 by welding, bolting, or other methods, providing an installation base for the lifting ring body 24. The lifting ring body 24 is rotatably connected to the lifting ring base 18 through connecting parts such as shafts and pins, allowing the lifting ring body 24 to rotate freely around the connecting shaft on the lifting ring base 18. In this embodiment, the fixed connection between the lifting ring base 18 and the frame body 1 ensures the secure installation of the lifting ring assembly 4 on the frame body 1; the rotatable connection between the lifting ring body 24 and the lifting ring base 18 allows the lifting ring body 24 to rotate flexibly according to the position and angle of the hook of the lifting equipment during the lifting process, facilitating the connection between the lifting equipment and the lifting ring assembly 4, and improving the convenience and safety of the lifting.

[0041] The implementation principle of the above embodiment is as follows: When hoisting the protective device, the hook of the hoisting equipment is connected to the lifting ring body 24. Since the lifting ring body 24 can rotate on the lifting ring base 18, it can automatically adapt to the angle and position of the hook, keeping the protective device balanced during hoisting and preventing tilting or swaying due to improper angles, thus ensuring the safe and smooth progress of the hoisting process. When dismantling the protective device, the rotational characteristics of the lifting ring assembly 4 are also utilized to facilitate the hoisting equipment to lift and dismantle the protective device.

[0042] Reference Figure 1 , Figure 4 One embodiment shown involves multiple springs 19 fixedly connected between two adjacent telescopic rods 9 via welding or other methods. The two ends of each spring 19 are connected to a fixing sleeve 10 or other suitable location on the adjacent telescopic rod 9. When the telescopic rod 9 extends or contracts or is subjected to external force, the spring 19 can undergo elastic deformation. In this embodiment, the springs 19 connect adjacent telescopic rods 9, serving a buffering and stabilizing function. When the dimensions of the extension frame 3 change, the telescopic rods 9 extend and contract. The springs 19 absorb and release energy through elastic deformation, reducing the interaction force between the telescopic rods 9 and making the extension and contraction of the telescopic rods 9 smoother. Simultaneously, when the protective device is subjected to external impact, the elastic deformation of the springs 19 can absorb the impact force, reducing damage to the protective device structure and enhancing the stability and impact resistance of the protective device.

[0043] The implementation principle of the above embodiment is as follows: during the adjustment of the size of the extension frame 3, the telescopic rod 9 extends and retracts, causing the spring 19 to stretch or compress. The elastic force generated by the elastic deformation of the spring 19 balances the forces between the telescopic rods 9, enabling the telescopic rods 9 to extend and retract smoothly. When the protective device is subjected to external forces such as collisions, the elastic deformation of the spring 19 absorbs the impact force, converting the external force into the elastic potential energy of the spring 19, reducing the impact of the external force on the structure of the protective device, protecting the integrity of the protective device, and also providing a certain buffer protection for construction personnel.

[0044] Reference Figure 1 , Figure 2 One embodiment shown is as follows: the bottom of the extension frame 3 is fixedly connected to a support foot 20 by welding, bolting, or other methods. The support foot 20 provides support for the protective device, and its bottom has several wedges 21. The wedges 21 can be integrally formed with the support foot 20, or they can be fixed to the bottom of the support foot 20 by welding, threaded connection, or other methods. The wedges 21 are sharp and can be easily inserted into the ground. In this embodiment, the connection between the support foot 20 and the extension frame 3 provides a stable support point for the protective device, allowing the protective device to be placed firmly on the ground; the wedges 21 at the bottom of the support foot 20 can be inserted into the ground, increasing the friction and fixing force between the protective device and the ground, ensuring the stability of the protective device even on uneven ground, and preventing the protective device from shaking, shifting, or tipping over.

[0045] The implementation principle of the above embodiment is as follows: when installing the protective device, the support foot 20 at the bottom of the extended frame 3 is placed on the ground. The wedge 21 at the bottom of the support foot 20 is inserted into the ground under the weight of the protective device itself or the action of external force. Through the tight engagement between the wedge 21 and the ground, the connection strength between the protective device and the ground is enhanced, so that the protective device can remain stable on uneven ground, providing reliable safety protection for construction personnel and construction equipment.

[0046] Reference Figure 1 , Figure 2 One embodiment shown is as follows: a support foot 20 is located at the bottom of the sliding rod 7 of the extension frame 3 and is fixedly connected to the sliding rod 7 by welding, bolting, or other methods. The surface of the support foot 20 has a stepping part 22, which can be a groove, raised texture, or other structure, for the convenience of construction personnel stepping on it. In this embodiment, the connection between the support foot 20 and the sliding rod 7 securely mounts the support foot 20 on the extension frame 3, providing support for the protective device. The stepping part 22 on the support foot 20 not only increases the friction on its surface, making it convenient for construction personnel to step on it during the installation and disassembly of the protective device, but also allows operators to directly step on the stepping part 22 during the use of the protective device. By applying appropriate force, the sliding process of the sliding rod 7 can be adjusted, realizing the extension and retraction of the extension frame 3, thereby flexibly changing the coverage area of ​​the protective device. This design facilitates the operation of the protective device by construction personnel and also improves their safety during operation.

[0047] The implementation principle of the above embodiment is as follows: when installing the protective device, construction workers can step on the footrest 22 of the support foot 20 to fine-tune or fix the protective device; during use, the sliding rod 7 can be adjusted with the help of the footrest 22 to flexibly change the protection range; when removing the protective device, construction workers can also use the footrest 22 to easily disassemble the protective device. The presence of the footrest 22 increases the friction between the construction worker and the support foot 20, preventing the construction worker from slipping during operation and improving the convenience and safety of construction operations.

[0048] Reference Figure 1 , Figure 5 One embodiment shown is that each support leg 20 has a hook 23 welded to its inner side for attaching a hanging net, which can cover the shaft opening and prevent people from falling in.

[0049] The working principle of this device is as follows: During use, first adjust the extension frame 3 according to the shaft dimensions, pull the sliding rod 7 to slide within the fixed pipe 6, the sliding rod 11 of the telescopic rod 9 slides within the fixed sleeve 10, and the sliding seat 12 slides and hinges within the sliding groove 13 of the sliding rod 7. The spring 19 between adjacent telescopic rods 9 provides buffering and stabilization. After the dimensions are properly adjusted, insert the pin 16 of the limiting assembly 15 into the limiting hole 17 of the sliding rod 7 for fixation. Next, use the lifting ring assembly 4 to hoist the protective device to the shaft working level. The lifting ring body 24 rotates to facilitate connection with the hook 23. During placement, the support foot 20 contacts the ground, and the wedge 21 is inserted into uneven ground to enhance stability. Fine adjustments can be made via the stepping part 22. After installation, the guardrail 5 prevents personnel from falling, the reflective warning strip 14 reminds of safety, and the telescopic rod 9 and spring 19 buffer and absorb shock when subjected to external forces. After construction is completed, lift the device using the lifting ring assembly 4, pull out the pin 16 to reduce the frame size, and disassemble for reuse.

[0050] The working principle of this device has been explained through the above embodiments. These embodiments only illustrate several implementation methods of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A turnable work layer shaft horizontal protection device comprising a frame body (1), characterized in that: The frame body (1) includes a main frame (2) and an extension frame (3), the extension frame (3) being slidably installed at the bottom of the main frame (2); it also includes at least one set of lifting ring assemblies (4), which are set at the top of the frame body (1) for hoisting and fixing; the side of the frame body (1) is provided with a guardrail (5).

2. The reusable working layer vertical shaft horizontal protection device according to claim 1, characterized in that: The main frame (2) has a tapered structure and includes four fixed tubes (6). The extension frame (3) includes a sliding rod (7). The sliding rod (7) is slidably connected to the fixed tube (6) on its corresponding side. Multiple protective rods (8) are provided between two adjacent fixed tubes (6).

3. A reusable working layer vertical shaft horizontal protection device according to claim 2, characterized in that: Multiple telescopic rods (9) are provided between two adjacent sliding rods (7). Each telescopic rod (9) includes a fixed sleeve (10). The fixed sleeve (10) is located between two adjacent sliding rods (7). Sliding rods (11) are slidably connected to both sides of the fixed sleeve (10). A sliding seat (12) is provided at the other end of the sliding rod (11). A sliding groove (13) is provided on the sliding rod (7). The sliding seat (12) is slidably connected in the sliding groove (13) on its corresponding side. The sliding seat (12) and the sliding rod (11) are hinged.

4. A reusable working layer vertical shaft horizontal protection device according to claim 3, characterized in that: A reflective warning strip (14) is provided on the fixing sleeve (10).

5. A reusable working layer vertical shaft horizontal protection device according to claim 2, characterized in that: The main frame (2) is provided with a limiting component (15) that can limit the position of the sliding rod (7). The limiting component (15) includes a pin (16) that is detachably connected to the fixed tube (6). The sliding rod (7) is provided with a plurality of limiting holes (17) arranged along its length direction. The pin (16) can be inserted into the limiting hole (17).

6. A reusable working layer vertical shaft horizontal protection device according to claim 1, characterized in that: The lifting ring assembly (4) includes a lifting ring base (18), which is fixed to the top of the frame body (1), and a rotatable lifting ring body (24) is provided on the lifting ring base (18).

7. A reusable working layer vertical shaft horizontal protection device according to claim 3, characterized in that: Multiple springs (19) are provided between two adjacent telescopic rods (9) and are connected by the springs (19).

8. A reusable working layer vertical shaft horizontal protection device according to claim 2, characterized in that: The bottom of the extended frame (3) is provided with a support foot (20), and the bottom of the support foot (20) is provided with a number of wedges (21).

9. A reusable working layer vertical shaft horizontal protection device according to claim 8, characterized in that: The support foot (20) is located at the bottom of the sliding rod (7) and a stepping part (22) is provided on the support foot (20).

10. A reusable working layer vertical shaft horizontal protection device according to claim 8, characterized in that: The inner side of the support foot (20) is provided with a hook (23).

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