Elevator for indoor building construction
By introducing a servo motor-driven gear and threaded rod system into the indoor construction hoist, the automatic deployment and retraction of the netting and the stable lifting and lowering of the support platform are achieved, solving the problems of tool drops and construction instability, and improving safety and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 宋国刚
- Filing Date
- 2025-05-22
- Publication Date
- 2026-05-01
AI Technical Summary
Existing indoor construction hoists are prone to injuring people on the ground when tools fall, and the construction process is unstable, affecting safety and efficiency.
A second servo motor drives a gear to move a rack, allowing the mesh to slide out and preventing the tool from falling. At the same time, a first servo motor drives a threaded rod to raise and lower the support plate and lift the casters off the ground, increasing stability.
It effectively prevents tools from falling and injuring personnel on the ground, improves construction safety and work efficiency, and ensures the continuity and stability of the construction process.
Smart Images

Figure CN224187135U_ABST
Abstract
Description
An indoor construction hoist Technical Field
[0001] This utility model relates to the field of indoor building construction technology, and in particular to an elevator for indoor building construction. Background Technology
[0002] In modern interior construction, to effectively improve work efficiency, ensure construction safety, and reduce the labor intensity of workers, construction companies urgently need to use indoor elevators to assist workers in their work. This specialized vertical transportation equipment can safely and quickly transport workers, tools, and materials to different construction heights, greatly expanding the workers' working range and enabling them to easily reach previously inaccessible areas, thus efficiently completing various construction tasks such as ceiling installation, wall decoration, and pipe laying. The application of indoor elevators not only solves the problems of limited indoor space and the inconvenience of traditional scaffolding, but also further promotes the mechanization and intelligentization of interior construction, making it an indispensable piece of equipment in modern interior construction.
[0003] CN210419151U discloses an indoor building construction hoist, including a base, with wheels fixedly connected to the four corners of the bottom end of the base, and two mounting plates fixedly connected to the two sides of the top end of the base. The mounting plates have a movable groove at the center of the top end, which is a through groove, and a movable rod is provided in the movable groove.
[0004] This device slides out to the left via a sliding plate, allowing operators to stand on it to repair the roof or walls above. This solves the problems of traditional workbenches being unable to extend and having limited use. Furthermore, the counterweight on the right side is suspended, balancing the forces on both sides and improving the stability of the sliding plate. This helps workers complete their work and prevents the device from tipping over. The sliding plates on both sides allow for collaborative repairs by multiple workers, making it more adaptable to different work environments and indirectly increasing work efficiency while reducing the difficulty of operation. However, a drawback of this device is that if tools are accidentally dropped while workers are working on top, they could injure people on the ground, reducing work safety.
[0005] Therefore, those skilled in the art have provided an indoor construction hoist to solve the problems mentioned in the background art. Summary of the Invention
[0006] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an indoor construction hoist. This hoist uses a second servo motor to drive a gear and rack to move, allowing the net to slide out and preventing tools from falling and injuring personnel on the ground. It also reduces work interruptions caused by falling tools, thereby improving safety and work efficiency.
[0007] To achieve the above objectives, the present invention provides the following technical solution:
[0008] An indoor construction hoist includes a base and a support platform. Multiple first servo motors are disposed at the middle of the upper outer side of the base. The output ends of each first servo motor extend into the interior of the base and are fixedly connected to a first threaded rod. A first threaded cylinder is threaded onto the upper outer end of each of the multiple first threaded rods. A support plate is fixedly connected to one side of each of the multiple first threaded cylinders. A second servo motor is disposed on one end face of the support platform. The output end of the second servo motor extends into the interior of the support platform and is fixedly connected to a drive shaft. Gears are sleeved on both outer sides of the drive shaft. A mesh is disposed inside the support platform. Racks are fixedly connected to both lower ends of the mesh, and both racks mesh with gears.
[0009] Through the above technical solution, the elevator uses a second servo motor to drive the gear and move the rack, causing the net to slide out, preventing tools from falling and injuring personnel on the ground. At the same time, it reduces work interruptions caused by falling tools, improving safety and work efficiency.
[0010] Furthermore, a bidirectional motor is provided at the lower center of the base, and a second threaded rod is fixedly connected to both ends of the bidirectional motor. A second threaded cylinder is threaded on the outer side of each of the two second threaded rods. A folding rod is rotatably connected to the upper end of each of the two second threaded cylinders. Sliding rings are rotatably connected to both sides of the upper end of the folding rod. A sliding rod is fixedly connected inside the groove opened at the lower center of the support platform, and the two sliding rings are located outside the sliding rod and are slidably connected to it.
[0011] Through the above technical solution, the bidirectional motor drives the second threaded rod to rotate, enabling the second threaded cylinder to drive the folding rod to fold and unfold, thereby achieving the smooth lifting and lowering of the support platform and providing workers with working platforms at different heights.
[0012] Furthermore, a protective railing is fixedly connected to the upper outer side of the support platform, and two protective rings are fixedly connected to one side of the upper end of the protective railing;
[0013] Through the above technical solution, the guardrail surrounding the support platform provides a safe working area for workers, preventing them from falling accidentally. At the same time, the guardrail provides a stable support and positioning point for the locking hook, allowing workers to lock the hook more conveniently and quickly, effectively preventing safety accidents caused by the locking hook not being locked correctly.
[0014] Furthermore, auxiliary telescopic rods are fixedly connected to the four internal corners of the base, and the upper ends of the multiple auxiliary telescopic rods are fixedly connected to the support platform.
[0015] The above technical solution connects the base and support platform with the auxiliary telescopic rod to form a stable support structure, effectively preventing the support platform from shaking or tilting during lifting or operation, thus ensuring the safety of the staff.
[0016] Furthermore, guide rods are fixedly connected to the grooves on both sides of the multiple end faces of the base, and guide rings are fixedly connected to both sides of one end face of the multiple support plates. The multiple guide rings are located outside the guide rods and are slidably connected to them.
[0017] Through the above technical solution, the cooperation of the guide rod and the guide ring guides the support plate to rise and fall smoothly along the predetermined track, avoiding jamming or deviation, and ensuring the reliability and service life of the support plate.
[0018] Furthermore, guide bars are fixedly connected to both ends of the mesh, and both guide bars are located inside the support platform and are slidably connected to it;
[0019] Through the above technical solution, the guide bar slides inside the support platform, allowing the netting to slide out and retract smoothly, ensuring the normal use of the netting function and avoiding damage caused by friction or jamming.
[0020] Furthermore, a control panel is provided at one corner of one end face of the guardrail, and a storage battery is provided on one side of the inside of the base;
[0021] Through the above technical solution, the control panel makes it convenient for staff to operate the elevator, control its lifting, net sliding and other actions. The battery as the power source frees the elevator from the constraints of cables, allowing it to be used flexibly in different locations and improving work efficiency.
[0022] Furthermore, omnidirectional wheels are provided at the four corners of the lower end of the base;
[0023] Through the above technical solutions, the casters enable the lift to move and turn easily on the ground, facilitating its transport to different work locations, adapting to different work needs, and improving the utilization rate of the equipment.
[0024] This utility model has the following beneficial effects:
[0025] 1. This utility model proposes an indoor construction hoist. When in use, the hoist uses a second servo motor to drive a gear and move a rack, causing the net to slide out from inside the support platform. This allows the net to catch any tools that accidentally fall while workers are working at the top, preventing injury to people on the ground and improving work safety. At the same time, workers do not need to fall to the ground to pick up tools; they can directly retrieve them from the net and continue using them, reducing work interruptions caused by falling tools, maintaining the continuity of the work rhythm, and allowing workers to focus more on the task at hand, thereby improving overall work efficiency.
[0026] 2. The present invention proposes an indoor construction hoist. When in use, the hoist is driven by a first servo motor to rotate the threaded rod, causing multiple inclined support plates to descend, lifting the base and lifting the casters off the ground. This effectively increases the contact area between the hoist and the ground, significantly improves stability, avoids the risks caused by the casters rolling or being unstable, and thus greatly enhances the stability of the equipment, ensuring safety and operational accuracy during construction. Attached Figure Description
[0027] Figure 1 is an isometric view of an indoor building construction hoist proposed in this utility model;
[0028] Figure 2 is a schematic diagram of the base and support plate of an indoor building construction hoist proposed in this utility model.
[0029] Figure 3 is a network connection isometric view of an indoor building construction hoist proposed in this utility model;
[0030] Figure 4 is a front sectional view of an indoor building construction hoist proposed in this utility model;
[0031] Figure 5 is a side sectional view of an indoor building construction hoist proposed in this utility model.
[0032] Legend:
[0033] 1. Base; 2. First servo motor; 3. First threaded rod; 4. First threaded cylinder; 5. Support plate; 6. Bidirectional motor; 7. Second threaded rod; 8. Second threaded cylinder; 9. Folding rod; 10. Sliding ring; 11. Support platform; 12. Sliding rod; 13. Guardrail; 14. Second servo motor; 15. Drive shaft; 16. Gear; 17. Connecting net; 18. Rack; 19. Guide bar; 20. Auxiliary telescopic rod; 21. Guide rod; 22. Guide ring; 23. Control panel; 24. Protective ring; 25. Battery; 26. Casters. Detailed Implementation
[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0035] Referring to Figures 1-5, a specific embodiment of this utility model is provided: an indoor building construction hoist includes a base 1 and a support platform 11. A plurality of first servo motors 2 are arranged in the middle of the outer side of the upper end of the base 1. The output ends of the first servo motors 2 all extend into the interior of the base 1 and are fixedly connected to first threaded rods 3. The upper outer ends of the plurality of first threaded rods 3 are threaded with first threaded cylinders 4. A support plate 5 is fixedly connected to one side of the plurality of first threaded cylinders 4. A second servo motor 14 is arranged on one side of the end face of the support platform 11. The output end of the second servo motor 14 extends into the interior of the support platform 11 and is fixedly connected to a transmission shaft 15. Gears 16 are sleeved on both sides of the outer side of the transmission shaft 15. A mesh 17 is arranged inside the support platform 11. Racks 18 are fixedly connected to both sides of the lower end of the mesh 17. Both racks 18 are meshed with gears 16.
[0036] The lift is driven by a second servo motor 14, which drives the gear 16 to move the rack 18, causing the net 17 to slide out. This prevents tools from falling and injuring people on the ground, while also reducing work interruptions caused by falling tools, thus improving safety and work efficiency.
[0037] A bidirectional motor 6 is installed at the lower center of the base 1. Two second threaded rods 7 are fixedly connected to both ends of the bidirectional motor 6. Two second threaded cylinders 8 are threaded onto the outer side of each of the two second threaded rods 7. Folding rods 9 are rotatably connected to the upper ends of the two second threaded cylinders 8. Sliding rings 10 are rotatably connected to both sides of the upper end of the folding rods 9. A sliding rod 12 is fixedly connected inside a groove in the lower center of the support platform 11. Two sliding rings 10 are located outside and slidably connected to the sliding rod 12. The bidirectional motor 6 drives the second threaded rods 7 to rotate, enabling the second threaded cylinders 8 to fold and unfold the folding rods 9, thus achieving smooth lifting and lowering of the support platform 11. This provides workers with work platforms at different heights. A guardrail 13 is fixedly connected to the upper outer side of the support platform 11. Two protective rings 24 are fixedly connected to one side of the upper end of the guardrail 13. The guardrail 13 surrounds the support platform 11, providing a safe working area for the workers and preventing them from falling accidentally. At the same time, the protective rings 24 provide a stable support and positioning point for the locking hook, allowing the workers to lock the hook more conveniently and quickly, effectively preventing safety accidents caused by the locking hook not being properly locked. Auxiliary telescopic rods 20 are fixedly connected to the four corners inside the base 1. The upper ends of the multiple auxiliary telescopic rods 20 are fixedly connected to the support platform 11. The auxiliary telescopic rods 20 connect the base 1 and the support platform 11, forming a stable support structure, effectively preventing the support platform 11 from falling during lifting. In case of shaking or tilting during operation, ensuring the safety of the staff, guide rods 21 are fixedly connected to the grooves on both sides of the multiple end faces of the base 1. Guide rings 22 are fixedly connected to both sides of one end face of the multiple support plates 5. The multiple guide rings 22 are located outside the guide rods 21 and are slidably connected to them. The cooperation of the guide rods 21 and guide rings 22 guides the support plates 5 to rise and fall smoothly along the predetermined track, avoiding jamming or deviation, and ensuring the reliability and service life of the support plates 5. Guide strips 19 are fixedly connected to both end faces of the mesh 17. The two guide strips 19 are located inside the support platform 11 and are slidably connected to it. The guide strips 19 slide inside the support platform 11, so that the mesh 17 can be leveled. The smooth sliding out and retraction ensures the normal operation of the netting 17 function and avoids damage caused by friction or jamming. A control panel 23 is set at one corner of one end face of the guardrail 13, and a battery 25 is set inside one side of the base 1. The control panel 23 makes it convenient for workers to operate the elevator and control its lifting, lowering, netting 17 sliding out and other actions. The battery 25 serves as the power source, freeing the elevator from the constraints of cables and allowing it to be used flexibly in different locations, thus improving work efficiency. Universal wheels 26 are set at the four corners of the lower end of the base 1. The universal wheels 26 allow the elevator to move and turn easily on the ground, making it convenient to transport to different work locations, adapt to different work needs, and improve the utilization rate of the equipment.
[0038] Working Principle: When using this lifting platform, the operator first moves it to the designated work location. Then, using the control panel 23, the first servo motor 2 is activated, driving the threaded rod to rotate. This causes multiple inclined support plates 5 to slowly descend, lifting the base 1 and lifting the casters 26 off the ground, effectively increasing the contact area between the lifting platform and the ground and significantly improving stability. Next, the operator stands on the stable support platform 11 and operates the bidirectional motor 6 via the control panel 23, driving the second threaded rod 7 to rotate. This causes the second threaded cylinder 8 to unfold the folding rod 9, allowing the support platform 11 to smoothly rise to the required working height. Once the working height is reached, the operator then... The second servo motor 14 is activated via control panel 23, driving gear 16 to move rack 18, causing netting 17 to slide out from inside support platform 11. This ensures that if tools are accidentally dropped during construction at the upper level, they can be safely caught by netting 17, effectively preventing potential injury to personnel on the ground and significantly improving work safety. At the same time, this design eliminates the hassle of workers falling to the ground to retrieve tools; they can directly retrieve tools from netting 17 to continue working, greatly reducing work interruptions caused by dropped tools, maintaining the continuity of the work rhythm, and allowing workers to focus more on the task at hand, thereby significantly improving overall work efficiency.
[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An indoor construction hoist comprising a base (1) and a support platform (11), characterized in that: Multiple first servo motors (2) are provided on the upper outer middle part of the base (1). The output ends of the first servo motors (2) extend into the interior of the base (1) and are fixedly connected to the first threaded rods (3). The upper outer ends of the multiple first threaded rods (3) are threaded with first threaded cylinders (4). The side of the multiple first threaded cylinders (4) is fixedly connected to the support plate (5). A second servo motor (14) is provided on one side of the support platform (11). The output end of the second servo motor (14) extends into the interior of the support platform (11) and is fixedly connected to the transmission shaft (15). Gears (16) are sleeved on both sides of the transmission shaft (15). A mesh (17) is provided inside the support platform (11). Racks (18) are fixedly connected on both sides of the lower end of the mesh (17). The two racks (18) are meshed with the gears (16).
2. A construction elevator according to claim 1, characterized in that: A bidirectional motor (6) is provided at the lower middle part of the base (1). A second threaded rod (7) is fixedly connected to both ends of the bidirectional motor (6). A second threaded cylinder (8) is threaded on the outer side of each of the two second threaded rods (7). A folding rod (9) is rotatably connected to the upper end of each of the two second threaded cylinders (8). A sliding ring (10) is rotatably connected to both sides of the upper end of the folding rod (9). A sliding rod (12) is fixedly connected inside the groove opened at the lower middle part of the support platform (11). The two sliding rings (10) are located outside the sliding rod (12) and are slidably connected to it.
3. A construction elevator as defined in claim 1 wherein: A guardrail (13) is fixedly connected to the upper outer side of the support platform (11), and two guard rings (24) are fixedly connected to one side of the upper end of the guardrail (13).
4. The indoor construction hoist according to claim 1, characterized in that: Auxiliary telescopic rods (20) are fixedly connected to the four corners inside the base (1), and the upper ends of the multiple auxiliary telescopic rods (20) are fixedly connected to the support platform (11).
5. The indoor construction hoist according to claim 1, characterized in that: Guide rods (21) are fixedly connected to the grooves on both sides of the multiple end faces of the base (1), and guide rings (22) are fixedly connected to both sides of one end face of the multiple support plates (5). The multiple guide rings (22) are located outside the guide rods (21) and are slidably connected to them.
6. The indoor construction hoist according to claim 1, characterized in that: Guide bars (19) are fixedly connected to both ends of the mesh (17), and both guide bars (19) are inside the support platform (11) and are slidably connected to it.
7. A construction elevator according to claim 3 wherein: A control panel (23) is provided at one corner of one side end of the guardrail (13), and a storage battery (25) is provided on one side of the inside of the base (1).
8. The indoor construction hoist according to claim 1, characterized in that: The base (1) is equipped with casters (26) at the four corners of its lower end.
Citation Information
Patent Citations
Elevator for indoor building construction
CN210419151U