Detachable construction elevator shaft anti-falling device

Abstract

This utility model provides a detachable elevator shaft fall arrestor for building construction, belonging to the field of building construction technology. It includes an installation frame with an installation groove at the top. A support plate is slidably installed in the installation groove, and an extension component is provided on the support plate. The extension component includes a first extension plate, with first extension plates on both sides of the support plate. A through groove is provided at one end of each of the two sets of first extension plates, and a second extension plate is provided at the bottom of the first extension plate corresponding to the through groove. A third extension plate is provided between the two sets of second extension plates. Two sets of grooves are provided at the bottom of the support plate corresponding to the installation frame, and a pressure sensor and a buzzer are respectively installed in the two sets of grooves. This device expands the protection range through the extension component and uses the pressure sensor and buzzer to monitor and alarm personnel movement, improving safety protection capabilities and solving the problem that traditional elevator shaft fall arrestors in the prior art have fixed dimensions and lack effective warning functions.

Description

Technical Field

[0001] This utility model belongs to the field of building construction technology, and more specifically, it relates to a detachable anti-fall device for building construction elevator shafts. Background Technology

[0002] In the construction industry, elevator shaft fall arrestors are frequently used for safety protection. During the construction of high-rise buildings, to ensure the safety of construction personnel and equipment, elevator shaft openings often need to be sealed off to prevent people from falling or objects from dropping and causing accidents. Traditional elevator shaft sealing methods mostly rely on fixed-size protective panels or simple support structures. While these protective methods can provide basic shielding to a certain extent, and offer initial protection at elevator shaft openings of standard size and in stable condition, preventing some people from approaching the opening and preventing small materials from slipping, they are still effective.

[0003] However, the dimensions of elevator shafts vary significantly across different building projects due to design differences and functional requirements. This makes it difficult for traditional fixed-size safety devices to fit the various sizes of elevator shaft openings. When faced with larger openings, the safety devices cannot provide full coverage, resulting in protective gaps at the edges of the shaft, through which personnel or materials can easily fall. Furthermore, traditional elevator shaft fall protection devices generally lack effective warning functions. Some construction workers, for convenience, stand on the safety devices for extended periods, becoming overly reliant on them and creating potential hazards. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a detachable elevator shaft fall arrestor for building construction, thereby solving the technical problem that existing elevator shaft fall arrestors have fixed dimensions and lack effective warning functions.

[0005] The purpose and effectiveness of this utility model's detachable anti-fall device for building construction elevator shafts are achieved through the following specific technical means:

[0006] A detachable fall arrestor for a construction elevator shaft includes an installation frame;

[0007] The top of the mounting frame is provided with a mounting groove, and a support plate is slidably disposed in the mounting groove. An extension component is provided on the support plate. The extension component includes a first extension plate. The first extension plates are provided on both sides of the support plate. A through groove is provided at one end of each of the two sets of first extension plates. A second extension plate is provided at the bottom of the first extension plate corresponding to the through groove. A third extension plate is provided between the two sets of second extension plates.

[0008] The mounting frame has two sets of grooves at the bottom of the support plate, and a pressure sensor and a buzzer are respectively installed in the two sets of grooves. The pressure sensor and the buzzer are electrically connected.

[0009] According to a preferred embodiment, a counterweight plate is detachably provided at one end of the mounting frame, and a mounting groove is provided at one end of the counterweight plate. The mounting frame is provided in the mounting groove, and a connecting through groove is provided at the top of the mounting groove corresponding to both the counterweight plate and the mounting frame. A limit block is provided in the connecting through groove.

[0010] According to a preferred embodiment, the mounting frame has a limiting groove on one side corresponding to the connecting groove, and the bottom of the support plate is provided with a limiting plate corresponding to the limiting groove, and the limiting plate is movably installed in the limiting groove.

[0011] The support plate has mounting through holes on both sides, and a connecting shaft passes through the mounting through holes. Both ends of the connecting shaft are provided with sliding wheels. The mounting frame has sliding through grooves on both sides corresponding to the sliding wheels. The bottom of the support plate is provided with a first limiting protrusion, which is slidably disposed in the sliding through groove.

[0012] According to a preferred embodiment, a sliding groove is provided at one end of the support plate, and two sets of connecting rods are provided on one side of the sliding groove. The support plate and one end of the first extension plate are respectively connected by the two sets of connecting rods.

[0013] According to a preferred embodiment, each of the two sets of second extension plates has a through hole on one side, and each of the two sets of first extension plates has a support rod at one end corresponding to the two sets of through holes. The two sets of support rods are respectively inserted into the two sets of through holes. Each of the two sets of support plates has a second limiting protrusion at one end corresponding to the two sets of second extension plates. Each of the two sets of second extension plates has a guide groove at its bottom, and the second limiting protrusion is disposed in the guide groove. Each of the two sets of second extension plates and the two sets of first extension plates has a slot corresponding to the second limiting protrusion.

[0014] According to a preferred embodiment, each of the two sets of second extension plates has a connecting groove on one side, and each of the two sets of second extension plates has a first protrusion at the bottom of the connecting groove. The third extension plate has a guide groove corresponding to the first protrusion, and the protrusion is slidably disposed in the guide groove.

[0015] Both sets of the second extension plates are provided with protective corner pads on one side, and the third extension plate is provided with a triangular support plate on one side.

[0016] According to a preferred embodiment, a connecting plate is rotatably provided at one end of the counterweight plate, a groove is provided on the counterweight plate corresponding to the connecting plate, the connecting plate is installed in the groove, a second protrusion is provided at one end of the connecting plate, and a limiting groove is provided on the support plate and the first extension plate corresponding to the second protrusion, the second protrusion being disposed in the limiting groove;

[0017] Both sides of the counterweight plate are provided with blocks, and one side of each of the two sets of blocks is provided with a rotation limiting groove corresponding to the connecting plate. A limiting clip is detachably provided in the rotation limiting groove.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. This utility model, through the setting of a support plate, a first extension plate, a second extension plate, and a third extension plate, allows users to adjust the protection range according to the size of the elevator shaft, improving the adaptability of the device. After the protection area is built, the user can move the support plate through the cooperation of the connecting shaft and the sliding wheel, allowing the user to quickly adjust the position of the device to adapt to construction needs, thus improving the device's ease of operation. Furthermore, the detachable counterweight plate facilitates the movement and installation of the device, solving the problem of fixed size and poor adaptability of traditional elevator shaft fall prevention devices in the prior art.

[0020] 2. When using this device, the user can use the pressure sensor and buzzer to monitor for overweight or objects and people standing on it for a long time and issue an alarm in time, so that the user can take quick countermeasures and improve the safety protection performance of the device. Then, the setting of counterweight plate and limit block can make the device stably installed at the elevator shaft opening, avoiding tipping over due to uneven force, providing users with a safe and reliable construction environment and improving the structural stability of the device. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the assembled structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the mounting frame and extension components after assembly in this utility model;

[0024] Figure 4 yes Figure 3 A schematic diagram of the disassembled structure.

[0025] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0026] 11. Mounting frame; 12. Support plate; 13. First extension plate; 14. Second extension plate; 16. Pressure sensor; 17. Buzzer; 18. Counterweight plate; 22. Connecting shaft; 23. Sliding wheel; 24. Connecting rod; 25. Support rod; 26. Protective corner pad; 27. Triangular support plate; 28. Connecting plate; 29. ​​Stop block; 31. Limiting clip; 32. Third extension plate. Detailed Implementation

[0027] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the technical solution of this utility model, but should not be used to limit the scope of protection of this utility model. Example

[0028] like Figures 3 to 4 As shown, this utility model provides a detachable fall arrestor for construction elevator shafts, including a mounting frame 11. The top of the mounting frame 11 has a mounting groove, which provides space for a support plate 12 to slide flexibly within the groove, adjusting its position to meet different protection requirements. The support plate 12 is equipped with an extension assembly, including a first extension plate 13. First extension plates 13 are provided on both sides of the support plate 12. The presence of these two sets of first extension plates 13 allows the support plate 12 to extend to both sides, thereby increasing the overall protection area.

[0029] Two sets of first extension plates 13 have through slots at one end, which provide a channel for the installation of second extension plates 14. The bottom of the first extension plate 13 is provided with the second extension plate 14 corresponding to the through slot. The second extension plate 14 can slide along the through slot to further expand the lateral protection range. A third extension plate 32 is provided between the two sets of second extension plates 14. The third extension plate 32 can connect the two sets of second extension plates 14, so that the protection area forms a whole and reduces the protection gap.

[0030] The mounting frame 11 has two sets of grooves at the bottom of the support plate 12. A pressure sensor 16 and a buzzer 17 are respectively installed in the two sets of grooves. The pressure sensor 16 and the buzzer 17 are electrically connected and electrically connected to an external power supply. The pressure sensor 16 can be a PT124G-111 model, and the buzzer 17 can be a TMB12A05 model. When someone stands on the support plate 12 for a long time, the pressure sensor 16 will sense the pressure change and trigger the buzzer 17 to sound, reminding the person to pay attention.

[0031] like Figure 2 and Figure 3As shown, a counterweight plate 18 is detachably mounted on one end of the mounting frame 11. The counterweight plate 18 provides counterweight to the device, preventing it from tilting due to excessive force on one side. A mounting groove is provided at one end of the counterweight plate 18, and the mounting frame 11 is installed within the groove. The mounting groove allows the mounting frame 11 and the counterweight plate 18 to mate. Connecting slots are provided at the top of the mounting grooves of both the counterweight plate 18 and the mounting frame 11. Limiting blocks are installed within these connecting slots. After passing through the connecting slots, the limiting blocks firmly fix the mounting frame 11 and the counterweight plate 18, preventing displacement during use. A limiting groove is provided on one side of the mounting frame 11 corresponding to the connecting groove. A limiting plate is provided at the bottom of the support plate 12 corresponding to the limiting groove. The limiting plate is movably mounted within the limiting groove, limiting its range of motion and preventing the support plate 12 from sliding out of the mounting groove of the mounting frame 11.

[0032] The support plate 12 has mounting through holes on both sides, and a connecting shaft 22 passes through the mounting through holes. Both ends of the connecting shaft 22 are provided with sliding wheels 23. The mounting frame 11 has sliding grooves on both sides corresponding to the sliding wheels 23. The sliding wheels 23 can roll along the sliding grooves to reduce the resistance when the support plate 12 slides. The bottom of the support plate 12 is provided with a first limiting protrusion. The first limiting protrusion is slidably set in the sliding groove. The cooperation between the first limiting protrusion and the sliding groove can limit the sliding direction of the support plate 12 and prevent it from deviating during the sliding process.

[0033] The support plate 12 has a sliding groove at one end, and two sets of connecting rods 24 are provided on one side of the sliding groove. The support plate 12 and the first extension plate 13 are connected at one end by the two sets of connecting rods 24 respectively. The connecting rods 24 connect the support plate 12 and the first extension plate 13 into a whole. When it is necessary to adjust the position of the first extension plate 13, the connecting rods 24 can move in the sliding groove with the movement of the first extension plate 13 to ensure that the first extension plate 13 can be smoothly unfolded or retracted.

[0034] Each of the two sets of second extension plates 14 has a through hole on one side. Each of the two sets of first extension plates 13 has a support rod 25 at one end corresponding to the two sets of through holes. The two sets of support rods 25 are respectively inserted into the two sets of through holes. The support rods 25 provide support for the second extension plates 14 and allow the second extension plates 14 to slide along the direction of the support rods 25, thereby adjusting the extension length of the second extension plates 14.

[0035] The support plate 12 has a second limiting protrusion at one end corresponding to the two sets of second extension plates 14. The bottom of the two sets of second extension plates 14 is provided with a guide groove. The second limiting protrusion is located in the guide groove. The cooperation between the second limiting protrusion and the guide groove can guide the sliding of the second extension plate 14 and prevent it from deviating from the direction when sliding. The two sets of second extension plates 14 and the two sets of first extension plates 13 are provided with slots corresponding to the second limiting protrusions. When the second extension plate 14 slides to the appropriate position, the second limiting protrusion will be locked into the slot to fix the position of the second extension plate 14.

[0036] like Figures 1 to 2 As shown, each of the two sets of second extension plates 14 has a connecting groove on one side, and each of the two sets of second extension plates 14 has a first protrusion at the bottom of the connecting groove. The third extension plate 32 has a guide groove corresponding to the first protrusion. The first protrusion is slidably disposed in the guide groove. The cooperation between the first protrusion and the guide groove allows the third extension plate 32 to slide between the two sets of second extension plates 14, thereby adjusting the position of the third extension plate 32 so that the three sets of extension plates form a continuous protective surface. Each of the two sets of second extension plates 14 has a protective corner pad 26 on one side. The protective corner pad 26 can reduce the wear generated when the second extension plate 14 contacts the elevator shaft wall and increase the friction. A triangular support plate 27 is provided on one side of the third extension plate 32. The triangular support plate 27 can enhance the structural strength of the third extension plate 32.

[0037] A connecting plate 28 is rotatably mounted on one end of the counterweight plate 18. A groove is formed on the counterweight plate 18 corresponding to the connecting plate 28, and the connecting plate 28 is installed in the groove. The groove provides storage space for the connecting plate 28. When not in use, the connecting plate 28 can be rotated into the groove, reducing the space occupied by the device. A second protrusion is provided on one end of the connecting plate 28. A limiting groove is formed on the support plate 12 and the first extension plate 13 corresponding to the second protrusion. The second protrusion is positioned within the limiting groove. When the connecting plate 28 is rotated to the unfolded state, the second protrusion will engage with the limiting groove, fixing the positions of the support plate 12 and the first extension plate 13. Both sides of the counterweight plate 18 are provided with stop blocks 29. When the support plate 12 is under force, the stop blocks 29 are close to the wall at the elevator entrance, forming an L-shape to prevent the device from overturning and falling due to overweight. One side of each set of stop blocks 29 is provided with a rotation limit groove corresponding to the connecting plate 28. The rotation limit groove can limit the rotation angle of the connecting plate 28 and prevent it from rotating. A limit clip 31 is detachably provided in the rotation limit groove. The limit clip 31 can fix the connecting plate 28 in the rotation limit groove to ensure that it will not rotate arbitrarily during use. When disassembling, simply remove the limit clip 31, which is easy to operate.

[0038] The specific usage and function of this embodiment are as follows:

[0039] When using this device, the position of the elevator shaft on the mounting frame 11 can be adjusted by sliding the support plate 12 according to the size of the elevator shaft. At the same time, the first extension plate 13 is pulled to extend to both sides. The connecting rod 24 moves within the sliding groove of the support plate 12 as the first extension plate 13 moves, allowing the first extension plate 13 to extend smoothly and expand the protection range. Simultaneously, the second extension plate 14 slides along the through groove of the first extension plate 13 and the support rod 25. The second limiting protrusion on the support plate 12 moves within the guide groove of the second extension plate 14. When the second extension plate 14 extends to a suitable length, the second limiting protrusion engages with the slot to complete the fixation. Furthermore, the third extension plate 32 connects the two sets of second extension plates 14 through the cooperation of the first protrusion and the guide groove, forming a complete protective surface.

[0040] During use, if construction workers stand on the support plate 12 for an extended period, the pressure sensor 16 will detect continuous pressure changes, triggering the buzzer 17 to sound and alert personnel to leave to avoid safety hazards. The counterweight plate 18 is fixed to the mounting frame 11 via a limit block, providing counterweight to the device. Together with the stop block 29, it rests against the elevator shaft wall, preventing the device from tilting or overturning due to excessive force on one side. When the device needs to be moved, remove the limit clip 31, rotate the connecting plate 28 into the groove of the counterweight plate 18, retract the extension assembly, and disassemble the counterweight plate 18 from the mounting frame 11 for easy transport. Overall, this device can flexibly adjust the protection range to adapt to elevator shafts of different sizes, while enhancing construction safety through pressure sensing and alarm functions, and is easy to move and adjust according to construction needs.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments.

Claims

1. A detachable fall arrestor for construction elevator shafts, characterized in that: Includes an installation frame (11); The mounting frame (11) has a mounting groove at the top, and a support plate (12) is slidably disposed in the mounting groove. An extension component is disposed on the support plate (12), and the extension component includes a first extension plate (13). The first extension plate (13) is disposed on both sides of the support plate (12). A through groove is opened at one end of the two sets of first extension plates (13). A second extension plate (14) is disposed at the bottom of the first extension plate (13) corresponding to the through groove. A third extension plate (32) is disposed between the two sets of second extension plates (14). The mounting frame (11) has two sets of grooves at the bottom of the support plate (12), and a pressure sensor (16) and a buzzer (17) are respectively installed in the two sets of grooves. The pressure sensor (16) and the buzzer (17) are electrically connected.

2. The detachable anti-fall device for construction elevator shafts according to claim 1, characterized in that: One end of the mounting frame (11) is detachably provided with a counterweight plate (18). One end of the counterweight plate (18) is provided with a mounting groove. The mounting frame (11) is provided in the mounting groove. The counterweight plate (18) and the mounting frame (11) are provided with connecting slots at the top of the mounting grooves. Limiting blocks are provided in the connecting slots.

3. A detachable anti-fall device for construction elevator shafts according to claim 2, characterized in that: The mounting frame (11) has a limiting groove on one side corresponding to the connecting groove, and the bottom of the support plate (12) is provided with a limiting plate corresponding to the limiting groove. The limiting plate is movably installed in the limiting groove. The support plate (12) has mounting through holes on both sides, and a connecting shaft (22) passes through the mounting through holes. Both ends of the connecting shaft (22) are provided with sliding wheels (23). The mounting frame (11) has sliding through grooves on both sides corresponding to the sliding wheels (23). The bottom of the support plate (12) is provided with a first limiting protrusion, which is slidably disposed in the sliding through groove.

4. A detachable anti-fall device for construction elevator shafts according to claim 3, characterized in that: The support plate (12) has a sliding groove at one end, and two sets of connecting rods (24) are provided on one side of the sliding groove. The support plate (12) and one end of the first extension plate (13) are respectively connected by the two sets of connecting rods (24).

5. A detachable anti-fall device for construction elevator shafts according to claim 1, characterized in that: Both sets of the second extension plates (14) have through holes on one side, and both sets of the first extension plates (13) have support rods (25) at one end corresponding to the two sets of through holes. The two sets of support rods (25) are respectively inserted into the two sets of through holes. The support plate (12) has a second limiting protrusion at one end corresponding to the two sets of second extension plates (14). The bottom of the two sets of second extension plates (14) is provided with a guide groove. The second limiting protrusion is located in the guide groove. The two sets of second extension plates (14) and the two sets of first extension plates (13) are provided with a slot corresponding to the second limiting protrusion.

6. A detachable anti-fall device for construction elevator shafts according to claim 5, characterized in that: Both sets of the second extension plates (14) have a connecting groove on one side, and both sets of the second extension plates (14) have a first protrusion at the bottom of the connecting groove. The third extension plate (32) has a guide groove at the first protrusion, and the first protrusion is slidably disposed in the guide groove. Both sets of the second extension plates (14) are provided with protective corner pads (26) on one side, and the third extension plate (32) is provided with a triangular support plate (27) on one side.

7. A detachable anti-fall device for construction elevator shafts according to claim 2, characterized in that: The counterweight plate (18) has a connecting plate (28) rotatably mounted on one end. The counterweight plate (18) has a groove corresponding to the connecting plate (28). The connecting plate (28) is installed in the groove. The connecting plate (28) has a second protrusion on one end. The support plate (12) and the first extension plate (13) have a limiting groove corresponding to the second protrusion. The second protrusion is located in the limiting groove. Both sides of the counterweight plate (18) are provided with blocks (29), and one side of each of the two sets of blocks (29) is provided with a rotation limiting groove corresponding to the connecting plate (28). A limiting clip (31) is detachably provided in the rotation limiting groove.

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