Protective device for elevator shaft opening

Abstract

The protective device comprises fixing plates arranged on the two sides of the elevator shaft opening, mounting plates are fixed to the side faces of the fixing plates, mounting holes corresponding to embedded sleeves in the wall faces on the two sides of the elevator shaft opening are formed in the mounting plates, and internal threads are arranged on the inner walls of the embedded sleeves. Bolts penetrate through the mounting holes and are in threaded connection with the embedded sleeves to fix the fixing plates to the wall faces of the two sides of the elevator shaft opening, a flexible latticed protection part is detachably connected between the two fixing plates, and the two sides of the protection part extend into the fixing plates and are in locking connection with the fixing plates. A worker can conveniently and quickly carry the device to an elevator shaft opening, the labor intensity of the worker is small, time and labor are saved, large space does not need to be occupied, and storage is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction safety, in particular to a protective device for an elevator shaft opening. Background Art

[0002] Elevator shafts are very common in modern construction projects. During the construction of high-rise and super-high-rise elevator door openings, the safety protection of the elevator shaft opening is a safety work that must be carried out on the construction site. However, how to efficiently protect the elevator shaft door opening, reduce construction difficulty, and reduce construction costs has become a practical problem that must be solved.

[0003] The width of an elevator shaft is usually 800mm to 1100mm and the height is 2100mm. If the safety protection door is made into an integral structure, it must be larger than this size. Therefore, the protection door is more difficult to move, which is time-consuming and labor-intensive, and the labor intensity of workers is also higher. At the same time, the protection door has a large area, requires more space, and is not easy to store. Utility Model Content

[0004] The purpose of the utility model is to provide a protective device for an elevator shaft opening, which can be conveniently and quickly carried to the elevator shaft opening by workers, with low labor intensity for workers, saving time and effort, and does not need to occupy a large space, so it is easy to store.

[0005] In order to solve the above technical problems, the utility model adopts the following solutions:

[0006] A protective device for an elevator shaft opening, comprising a fixing plate arranged on both sides of the elevator shaft opening, a mounting plate fixed to the side of the fixing plate, mounting holes corresponding to embedded sleeves in the walls on both sides of the elevator shaft opening are provided on the mounting plate, the inner wall of the embedded sleeve has an internal thread, bolts pass through the mounting holes and are threadedly connected with the embedded sleeve to fix the fixing plate to the walls on both sides of the elevator shaft opening, a flexible grid-shaped protective part is detachably connected between the two fixing plates, both sides of the protective part extend into the interior of the fixing plates and form a positive locking connection with the fixing plates.

[0007] Due to the adoption of the above technical scheme, the two fixing plates are respectively arranged on both sides of the elevator shaft opening, which are the basic parts of the entire protective device. Their main function is to provide a stable support so that other components can be installed later. The embedded sleeves are pre-installed inside the walls on both sides of the elevator shaft opening and have internal threads. When the bolts pass through the mounting holes and are connected with the embedded sleeves, the fixing plates can be firmly fixed on the walls on both sides of the elevator shaft opening due to the effect of the threads. The mounting plates are fixed on the sides of the fixing plates. The mounting plates are provided with mounting holes, which correspond to the embedded sleeves in the walls on both sides of the elevator shaft opening, ensuring that the bolts can pass through and be fixed accurately. The bolts pass through the mounting holes on the mounting plates and are connected with the embedded sleeves, so that the fixing plates are firmly fixed on both sides of the elevator shaft opening, and then The flexible protective part is installed between two fixed plates. The grid-like design can prevent people or objects from falling into the elevator shaft and ensure a certain degree of visual transparency. The two sides of the protective part extend into the interior of the fixed plate and form a positive locking connection with the fixed plate. This connection method can ensure that the protective part will not fall off the fixed plate when subjected to external force, thereby enhancing the safety performance of the entire protective device. The fixed plate and the protective part are detachable, and the protective part is flexible and can be curled to reduce its volume. Therefore, compared with the existing large-area protective doors, after the protective device of this scheme is disassembled, it is more convenient for workers to carry it, the labor intensity is also reduced, time and effort are saved, and the volume occupied by the dispersed protective device is reduced, which is convenient for storage in a smaller space.

[0008] Optionally, the protective portion is composed of a plurality of strip-shaped flexible members that are interlaced with each other in the horizontal and vertical directions to form a grid shape, and both ends of the horizontal flexible members are respectively connected to the corresponding fixed plates in a form-locking relationship.

[0009] Optionally, the flexible member is a steel wire rope, and the transverse flexible member and the vertical flexible member are connected to each other at the intersection.

[0010] Optionally, the fixing plate is composed of an inner plate and an outer plate, which are connected to each other by snapping, and a plurality of placement grooves are provided on the outer wall of the inner plate at intervals along its length direction, and a U-shaped groove for installing a flexible member is provided on one side of the placement groove, and the U-shaped groove opens outward, and the U-shaped groove passes through the inner plate toward the side away from the placement groove, and locking blocks adapted to the placement grooves are fixed at both ends of the transversely arranged flexible member. After the outer plate is connected to the inner plate, the inner side surface of the outer plate contacts the outer surface of the locking block, and the outer plate closes the locking block in the placement groove.

[0011] Optionally, the inner wall of the placement groove is provided with a rubber layer for preventing the locking block from loosening.

[0012] Optionally, the outer side wall of the inner plate is provided with card slots located on both sides of the placement groove, and the inner side wall of the outer plate is provided with card blocks adapted to the card slots, and both the card slots and the card blocks are dovetail structures.

[0013] Optionally, the width of the protective part is greater than the width of the elevator shaft opening, and the height of the protective part is not less than 1.8m.

[0014] Optionally, the gap between the lower end of the protective part and the ground is less than 10 cm.

[0015] Optionally, the protective part and the fixing plate are in a tensioned state after installation.

[0016] The utility model has the beneficial effects:

[0017] 1. In the utility model, the fixed plate and the protective part are detachable, and the protective part is flexible and can be curled to reduce its volume. Therefore, compared with the existing large-area protective door, after the protective device of this scheme is disassembled, it is more convenient for workers to carry it, the labor intensity is also reduced, time and labor are saved, and the volume occupied by the dispersed protective device is reduced, which is convenient for storage in a smaller space. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the top view structure of the outer plate and the inner plate;

[0020] Figure 3 It is a schematic diagram of the distribution structure of the placement slots on the inner plate;

[0021] Figure 4 A three-dimensional diagram of the distribution of the slots on the inner plate for placement;

[0022] Figure 5 This is a structural diagram after the locking block and inner plate are assembled.

[0023] Figure numerals: 1-elevator shaft opening, 2-wall, 3-fixed plate, 301-inner plate, 302-outer plate, 303-slot, 304-block, 305-placement slot, 306-U-shaped slot, 4-mounting plate, 5-protective part, 6-flexible part, 7-rubber layer, 8-locking block, 9-bolt. DETAILED DESCRIPTION

[0024] The present invention will be further described in detail below in conjunction with the embodiments and drawings, but the implementation manner of the present invention is not limited thereto.

[0025] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inside", "outside", "front", "back", "top", "bottom", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. 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 direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.

[0026] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "open", "installed", "connected", and "connected" 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] Example

[0028] A protective device for an elevator shaft opening comprises a fixing plate 3 arranged on both sides of the elevator shaft opening 1, a mounting plate 4 is fixed to the side of the fixing plate 3, the mounting plate 4 is provided with mounting holes corresponding to the embedded sleeves in the walls 2 on both sides of the elevator shaft opening 1, the inner wall of the embedded sleeve has an internal thread, bolts 9 pass through the mounting holes and are threadedly connected with the embedded sleeve to fix the fixing plate 3 to the walls 2 on both sides of the elevator shaft opening 1, a flexible grid-shaped protective part 5 is detachably connected between the two fixing plates 3, and both sides of the protective part 5 extend into the interior of the fixing plate 3 and form a positive locking connection with the fixing plate 3.

[0029] In this embodiment, Figure 1As shown, two fixing plates 3 are respectively arranged on both sides of the elevator shaft opening 1, which are the basic parts of the entire protective device. Their main function is to provide a stable support so that other components can be installed later. The embedded sleeves are pre-installed inside the walls 2 on both sides of the elevator shaft opening 1 and have internal threads. When the bolts 9 pass through the mounting holes and are connected with the embedded sleeves, the fixing plates 3 can be firmly fixed on the walls 2 on both sides of the elevator shaft opening 1 due to the effect of the threads. The mounting plates 4 are fixed on the sides of the fixing plates 3. The mounting plates 4 are provided with mounting holes, which correspond to the embedded sleeves in the walls 2 on both sides of the elevator shaft opening 1, ensuring that the bolts 9 can accurately pass through and be fixed. After the bolts 9 pass through the mounting holes on the mounting plates 4 (not marked in the figure), they are connected with the embedded sleeves (not marked in the figure), so that the fixing plates 3 are firmly fixed in the elevator On both sides of the wellhead 1, a flexible protective part 5 is installed between two fixed plates 3. The grid-like design can prevent people or objects from falling into the elevator well and ensure a certain degree of visual transparency. The protective part 5 extends to the inside of the fixed plate 3 on both sides and forms a positive locking connection with the fixed plate 3. This connection method can ensure that the protective part 5 will not fall off the fixed plate 3 when subjected to external force, thereby enhancing the safety performance of the entire protective device. The fixed plate 3 and the protective part 5 are detachable, and the protective part 5 is flexible and can be curled to reduce its volume. Therefore, compared with the existing large-area protective doors, after the protective device of this scheme is disassembled, it is more convenient for workers to carry it, and the labor intensity is also reduced, which saves time and effort. The volume occupied by the dispersed protective device is reduced, which is convenient for storage in a smaller space.

[0030] Furthermore, the protection portion 5 is composed of a plurality of strip-shaped flexible members 6 that are interlaced with each other in the horizontal and vertical directions to form a grid shape, and both ends of the horizontal flexible members 6 are respectively connected to the corresponding fixing plates 3 in a form-locking relationship.

[0031] Specifically, the two ends of the transverse flexible member 6 respectively form a form-locked connection relationship with the corresponding fixed plate 3. The form-locked connection method ensures that the connection between the flexible member 6 and the fixed plate 3 is firm and reliable, and it is not easy to loosen or fall off even when subjected to external force. This design not only enhances the safety of the entire protective device, but also improves its stability and durability. In general, this grid-shaped protective part 5 composed of a plurality of strip-shaped flexible members 6 is tightly combined with the fixed plate 3 through a form-locked connection method to form a safe, stable and practical elevator shaft 1 protective device. Such a design not only improves the safety of the elevator shaft 1, but also facilitates installation and use.

[0032] Furthermore, the flexible member 6 is a steel wire rope, and the transverse flexible member 6 and the vertical flexible member 6 are connected to each other at the intersection.

[0033] Specifically, the steel wire rope serves as the flexible member 6, has excellent tensile strength and wear resistance, can withstand certain external forces and is not easy to break. At the intersection, the horizontal and vertical steel wire ropes are interconnected to form a stable grid structure. This connection method not only enhances the overall stability of the protective part 5, but also can effectively prevent people or objects from passing through the grid gaps. In addition, since the weight of the steel wire rope is relatively light, it is more convenient to carry and install. The staff can fix the steel wire rope on the fixed plate 3 as needed, and realize the interconnection of the horizontal and vertical steel wire ropes through a simple connection method, or they can be woven together as a whole. In summary, the design of using steel wire rope as the flexible member 6 and interconnecting them at the intersection makes the elevator shaft mouth 1 protective device have both excellent strength and stability, and good adaptability and installation convenience. Such a design can effectively improve the safety of the elevator shaft mouth 1 and reduce the occurrence of accidents.

[0034] Furthermore, the fixing plate 3 is composed of an inner plate 301 and an outer plate 302, and the inner plate 301 and the outer plate 302 are connected by a snap-fitting manner, such as Figure 3 As shown, a plurality of placement grooves 305 are arranged at intervals along the length direction on the outer wall of the inner plate 301, and a U-shaped groove 306 for installing the flexible member 6 is arranged on one side of the placement groove 305, the U-shaped groove 306 opens outward, and the U-shaped groove 306 passes through the inner plate 301 toward the side away from the placement groove 305, and locking blocks 8 adapted to the placement groove 305 are fixed at both ends of the transversely arranged flexible member 6. After the outer plate 302 is connected to the inner plate 301, the inner side surface of the outer plate 302 contacts the outer surface of the locking block 8, and the outer plate 302 closes the locking block 8 in the placement groove 305.

[0035] Specifically, Figure 2 As shown, the design of the inner plate 301 specifically considers the installation requirements of the flexible member 6. The placement grooves 305 arranged at intervals along the length direction thereof provide stable support and positioning for the laterally arranged flexible member 6. Figure 5 As shown, at the same time, the U-shaped groove 306 design on one side of the placement groove 305 not only facilitates the installation of the flexible member 6, but also ensures that the flexible member 6 can maintain a stable position when subjected to force, such as Figure 4As shown, locking blocks 8 adapted to the placement groove 305 are fixed at both ends of the transversely arranged flexible member 6. This design enables the flexible member 6 to be firmly fixed in the placement groove 305 and is not easy to fall off. After the outer plate 302 is connected to the inner plate 301, the inner side surface of the outer plate 302 contacts the outer surface of the locking block 8, and the outer plate 302 seals the locking block 8 in the placement groove 305, further enhancing the connection stability between the flexible member 6 and the fixed plate 3. The design of the entire fixed plate 3 not only takes into account the convenience of installation and use, but also fully considers safety and stability. Through the snap-on connection between the inner plate 301 and the outer plate 302, and the cooperation of the flexible member 6 with the placement groove 305 and the U-shaped groove 306, it is ensured that the protective part 5 can be firmly fixed on the elevator shaft opening 1, effectively preventing people or objects from falling into the elevator shaft.

[0036] Furthermore, a rubber layer 7 is provided on the inner wall of the placement groove 305 to prevent the locking block 8 from loosening.

[0037] Specifically, Figure 3 As shown, the rubber material has a high friction coefficient. When the locking block 8 is placed in the placement groove 305, the rubber layer 7 can increase the friction between the locking block 8 and the placement groove 305 to prevent the locking block 8 from loosening due to external force or vibration. The rubber layer 7 has a certain elasticity and buffering capacity. When the flexible part 6 is subjected to external force, it can absorb part of the impact force and reduce the direct impact on the fixing plate 3, thereby extending the service life of the device. The presence of the rubber layer 7 will not affect the installation and disassembly operations of the locking block 8 in the placement groove 305. The staff can easily fix the locking block 8 in the placement groove 305 by snapping or other means, and the rubber layer 7 will naturally fit between the locking block 8 and the placement groove 305.

[0038] Furthermore, the outer wall of the inner plate 301 is provided with slots 303 located on both sides of the placement slot 305, and the inner wall of the outer plate 302 is provided with blocks 304 adapted to the slots 303, and both the slots 303 and the blocks 304 are dovetail structures.

[0039] Specifically, Figure 2As shown, the dovetail-shaped slot 303 and block 304 have unique shape characteristics, which enable them to form a tight fit when connected and are not easy to loosen. This structure provides a strong connecting force to ensure that the fixed plate 3 can remain stable when subjected to external force. In addition, the dovetail-shaped slot 303 and block 304 are also easy to install and disassemble. Due to their reasonable shape design, the staff can easily insert the block 304 into the slot 303 to achieve a quick connection between the inner plate 301 and the outer plate 302. Similarly, when disassembly is required, the block 304 can be removed from the slot 303 through simple operation. This design not only improves the connection strength and stability of the fixed plate 3, but also facilitates daily maintenance and replacement. At the same time, since the dovetail-shaped slot 303 and block 304 have high strength and durability, it can ensure that the fixed plate 3 maintains good performance during long-term use. In general, by setting a slot 303 on the outer wall of the inner plate 301 and setting a dovetail-shaped block 304 adapted to the slot 303 on the inner wall of the outer plate 302, a stable connection between the inner plate 301 and the outer plate 302 of the fixed plate 3 is achieved, providing a strong guarantee for the safety and stability of the elevator shaft mouth 1 protection device.

[0040] Furthermore, the width of the protective part 5 is greater than the width of the elevator shaft opening 1, and the height of the protective part 5 is not less than 1.8 m.

[0041] Specifically, firstly, the design that the width of the protective part 5 is greater than the width of the elevator shaft opening 1 ensures that the area around the elevator shaft opening 1 can be fully protected. In actual use, even if there are people or objects close to the elevator shaft opening 1, the existence of the protective part 5 can effectively prevent them from falling into the elevator shaft. This design improves the safety around the elevator shaft opening 1 and reduces the probability of accidents. Secondly, the design that the height of the protective part 5 is not less than 1.8 meters is also based on safety considerations. This height also meets the requirements of most building safety regulations and ensures the compliance of the protective device. In summary, the design that the width of the protective part 5 is greater than the width of the elevator shaft opening 1 and the height is not less than 1.8 meters not only improves the safety of the elevator shaft opening 1, but also facilitates actual use. Such a design meets the requirements of safety regulations, can effectively prevent people or objects from falling into the elevator shaft, and provides a strong guarantee for the safety protection of the elevator shaft opening 1.

[0042] Furthermore, the gap between the lower end of the protection part 5 and the ground is less than 10 cm.

[0043] Specifically, firstly, a gap less than 10 cm can effectively prevent most small objects from passing through, reducing the risk of these objects falling into the elevator shaft and causing potential dangers; secondly, such a design also meets the requirements of safety regulations, further improving the overall safety performance of the elevator shaft opening 1 protection device. By reducing the gap, we can minimize safety accidents caused by human negligence or unexpected situations. We can also directly install a footboard at the lower end of the protective part 5, and both ends of the footboard are connected to the fixed plate 3. The footboard is used to close the gap between the lower end of the protective cloth and the ground.

[0044] Furthermore, the protection portion 5 and the fixing plate 3 are in a tensioned state after being installed.

[0045] Specifically, when the protective part 5 and the fixing plate 3 are installed, they are in a taut state, which further improves the safety and stability of the entire protective device. The taut protective part 5 can better resist external pressure and impact force, thereby effectively preventing deformation or displacement caused by external force. In addition, the taut protective part 5 can also reduce the shaking caused by wind or other natural factors, ensuring that the protective device always remains in a stable state. This is very important for the safety protection of the elevator shaft 1, especially in high-rise buildings or areas with strong winds.

[0046] In order to achieve the tensioned state of the protective part 5, appropriate adjustments can be made during the installation process. For example, the tightness of the locking block 8 on the fixing plate 3 can be adjusted so that the protective part 5 is subjected to a certain pulling force in the horizontal and vertical directions, thereby achieving a tensioning effect. At the same time, according to actual needs, support or fixing measures can be added to the key parts of the protective part 5 to further enhance its stability and tension. In short, the design that the protective part 5 and the fixing plate 3 are in a tensioned state after installation can further improve the safety and stability of the elevator shaft mouth 1 protective device and provide more reliable safety protection for people's daily lives.

[0047] The above is only a preferred embodiment of the utility model and does not limit the utility model in any form. According to the technical essence of the utility model, within the spirit and principles of the utility model, any simple modification, equivalent replacement and improvement made to the above embodiment still falls within the protection scope of the technical solution of the utility model.

Claims

1. A protective device for an elevator shaft opening, characterized in that: The invention comprises a fixing plate (3) arranged on both sides of an elevator shaft opening (1), a mounting plate (4) being fixed on the side of the fixing plate (3), a mounting hole corresponding to a pre-embedded sleeve in the wall surface (2) on both sides of the elevator shaft opening (1) being provided on the mounting plate (4), the inner wall of the pre-embedded sleeve having an internal thread, a bolt (9) passing through the mounting hole and being threadedly connected with the pre-embedded sleeve to fix the fixing plate (3) to the wall surface (2) on both sides of the elevator shaft opening (1), a flexible grid-shaped protective part (5) being detachably connected between the two fixing plates (3), the two sides of the protective part (5) extending into the interior of the fixing plate (3) and forming a positive locking connection with the fixing plate (3).

2. The protective device for an elevator shaft opening according to claim 1, characterized in that: The protection part (5) is composed of a plurality of strip-shaped flexible members (6) which are interlaced in the horizontal and vertical directions to form a grid shape, and the two ends of the horizontal flexible members (6) are respectively connected to the corresponding fixed plates (3) in a form-locking relationship.

3. The protective device for an elevator shaft opening according to claim 2, characterized in that: The flexible member (6) is a steel wire rope, and the transverse flexible member (6) and the vertical flexible member (6) are connected to each other at the intersection.

4. The protective device for an elevator shaft opening according to claim 2, characterized in that: The fixing plate (3) is composed of an inner plate (301) and an outer plate (302). The inner plate (301) and the outer plate (302) are connected by a snap-fitting manner. A plurality of placement grooves (305) are arranged at intervals along the length direction of the outer wall of the inner plate (301). A U-shaped groove (306) for installing a flexible member (6) is arranged on one side of the placement groove (305). The U-shaped groove (306) opens outward and passes through the inner plate (301) toward a side away from the placement groove (305). Locking blocks (8) adapted to the placement groove (305) are fixed at both ends of the transversely arranged flexible member (6). After the outer plate (302) and the inner plate (301) are connected, the inner side surface of the outer plate (302) contacts the outer surface of the locking block (8), and the outer plate (302) seals the locking block (8) in the placement groove (305).

5. The protective device for an elevator shaft opening according to claim 4, characterized in that: The inner wall of the placement groove (305) is provided with a rubber layer (7) for preventing the locking block (8) from loosening.

6. The protective device for an elevator shaft opening according to claim 4, characterized in that: The outer side wall of the inner plate (301) is provided with a clamping groove (303) located on both sides of the placement groove (305), and the inner side wall of the outer plate (302) is provided with a clamping block (304) adapted to the clamping groove (303), and both the clamping groove (303) and the clamping block (304) are dovetail structures.

7. The protective device for an elevator shaft opening according to claim 1, characterized in that: The width of the protection part (5) is greater than the width of the elevator shaft opening (1), and the height of the protection part (5) is not less than 1.8 m.

8. The protective device for an elevator shaft opening according to claim 7, characterized in that: The gap between the lower end of the protection part (5) and the ground is less than 10 cm.

9. The protective device for an elevator shaft opening according to claim 1, characterized in that: The protection part (5) and the fixing plate (3) are in a tensioned state after installation.

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