Elevator with protection function
By using a motor-driven lead screw to drive the lifting frame, and through the engagement of locking blocks and gears, as well as the engagement of locked blocks with the motor drive, the problem of sudden descent caused by equipment aging or excessive load in traditional lifting elevators is solved, thus improving the safety and stability of the equipment.
Patent Information
- Application Number
- CN202423138678.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2034-12-19
AI Technical Summary
Traditional elevators are prone to transmission failure due to equipment aging or excessive load after long-term use, leading to sudden drops and threatening the safety of workers.
The lifting frame is driven by a motor-driven lead screw. The locking mechanism of the locking block and gears ensures that the equipment is fixed at the specified height and prevents sudden descent.
It improves the safety of the elevator, ensures stability and safety during the lifting process, and prevents sudden drops caused by equipment failure from endangering the personal safety of staff.
Smart Images

Figure CN223766038U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of lifting protection, in particular to a lifting elevator with protection function. BACKGROUND
[0002] With the development of city construction, in the construction process, workers need to work at high places, such as carrying out outer wall construction, erecting scaffold and the like, in order to protect the life safety of workers and prevent them from falling from high places, it is necessary to use lifting protection equipment, like the safety protection device of construction elevator, its background is that the risk of working at high places increases with the increase of building height, and effective lifting protection measures must be relied on to reduce the accident rate.
[0003] When using the lifting elevator, the conventional equipment is generally prone to sudden drop due to transmission equipment failure caused by equipment aging or overloading during lifting after long-term use, which threatens the personal safety of workers and reduces the safety of the equipment. UTILITY MODEL CONTENTS
[0004] The utility model aims at providing a lifting elevator with protection function to solve the problem of conventional equipment being generally prone to sudden drop due to transmission equipment failure caused by equipment aging or overloading during lifting after long-term use, which threatens the personal safety of workers and reduces the safety of the equipment.
[0005] To achieve the above object, the utility model provides following technical scheme: A lift with protection function, fixedly connected with first fixed block on the edge of the top of main body fixed plate near one side, the output shaft of motor extends the other side surface of first fixed block, the outer surface of screw rod is fixedly connected with lead screw through output shaft on the other side surface, the outer surface of screw rod is fixedly connected with lower sliding block, the outer surface of lower sliding block is rotatably provided with first lifting frame through fixed short pole on both sides, the opposite side surface of two first lifting frames is fixedly connected with fixed rod near the edge of top, the outer surface of fixed rod is sleeved with fixed frame near the edge of both sides, the outer surface of fixed rod is fixedly connected with gear near the center, the top of two fixed frames is fixedly connected with fixed top plate, the other side surface of fixed top plate is provided with two ring buckles near the center, the opposite side surface of two ring buckles is rotatably connected with second fixed block through fixed short pole, the bottom of second fixed block is fixedly connected with clamping block, the outer surface of clamping block is sleeved with handle near the edge of top, one end of handle is fixedly connected with limiting block, the other side surface of fixed top plate is provided with clamping groove near the center, and clamping groove is connected with limiting block slidingly.
[0006] As a preferred implementation, the top of the main body fixed plate is fixedly provided with a slide rail near the edge of both sides, and the slide rail is slidingly connected with the lower sliding block.
[0007] As a preferred implementation, the top of the main body fixed plate is fixedly provided with a third fixed block near the edge of the other side, and the third fixed block is rotatably connected with the screw rod.
[0008] As a preferred implementation, the front and rear outer surfaces of the third fixed block are rotatably connected with second lifting frames through fixed short poles.
[0009] As a preferred implementation, the opposite side surfaces of two second lifting frames are rotatably connected with upper sliding blocks through fixed short poles near the edge of the top.
[0010] As a preferred implementation, the bottom of the fixed top plate is provided with a sliding groove, and the upper sliding block is slidingly connected with the sliding groove.
[0011] As a preferred implementation, two first lifting frames are rotatably connected with two second lifting frames through fixed short poles.
[0012] Compared with the prior art, the utility model has the beneficial effects that:
[0013] In this invention, the operator first stands on top of the fixed top plate and moves the handle upwards to disengage the locking block from the gear. Then, by starting the motor, the output shaft rotates the lead screw, causing the lower sliding block to slide to the other side on the slide rail, raising the first and second lifting frames. The sliding groove at the bottom of the fixed top plate and the upper sliding block ensure smooth lifting and provide excellent stability. When the equipment reaches the designated height, to ensure safety, the operator moves the handle downwards to engage the locking block with the gear's tooth groove. Pushing the handle inwards, the limiting block slides into the engagement groove, locking the locking block against the fixed rod and preventing sudden descent due to equipment malfunction. This ensures the safety of the operator and improves the overall safety of the equipment. Attached Figure Description
[0014] Figure 1 This utility model provides a front-view three-dimensional structural diagram of a lifting ladder with protective functions;
[0015] Figure 2 This utility model provides a rear-view three-dimensional structural diagram of an elevator with protective functions;
[0016] Figure 3 This utility model provides a bottom-view three-dimensional structural diagram of an elevator with protective functions;
[0017] Figure 4 This utility model presents a three-dimensional structural diagram of the locking block of a lifting ladder with protective function.
[0018] Figure 5 This utility model proposes a lifting ladder with protective functions. Figure 3 Schematic diagram of the three-dimensional structure at point A
[0019] In the diagram: 1. Main fixing plate; 2. First fixing block; 3. Motor; 4. Lead screw; 5. Lower sliding block; 6. First lifting frame; 7. Fixing rod; 8. Fixing frame; 9. Gear; 10. Fixed top plate; 11. Ring buckle; 12. Second fixing block; 13. Locking block; 14. Handle; 15. Third fixing block; 16. Limiting block; 17. Engaging groove; 18. Slide rail; 19. Third fixing block; 20. Second lifting frame; 21. Upper sliding block. Detailed Implementation
[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0022] Please see Figures 1-5This utility model provides a technical solution: a lifting ladder with protective function, including a main fixing plate 1. A first fixing block 2 is fixedly connected to the top edge of the main fixing plate 1 near one side. The first fixing block 2 can fix a motor 3, improving the stability of the motor 3 during operation. The motor 3 is fixedly mounted on one outer surface of the first fixing block 2, and the output shaft of the motor 3 extends out of the other outer surface of the first fixing block 2. A lead screw 4 is fixedly connected to the other outer surface of the motor 3 through the output shaft. The motor 3 can drive the lead screw 4 to rotate, controlling the sliding of the lower sliding block 5. The lower sliding block is threaded on the outer surface of the lead screw 4 near the center. 5. The front and rear outer surfaces of the lower sliding block 5 are each rotatably equipped with a first lifting frame 6 via a fixed short rod. Sliding the lower sliding block 5 controls the upward lifting of one end of the first lifting frame 6. A fixed rod 7 is fixedly connected between the outer surfaces of the two first lifting frames 6 near the top edge. Fixed frames 8 are fitted onto the outer surfaces of the fixed rod 7 near the front and rear edges. With the fixed frames 8 and fixed rod 7 movably fitted together, the first lifting frame 6 drives the fixed rod 7 to rise and fall, simultaneously driving the fixed top plate 10 to rise and fall. A gear 9 is fixedly connected near the center of the outer surface of the fixed rod 7. A fixed... The top plate 10 has two ring buckles 11 near the center on the other outer surface. These ring buckles 11 allow the second fixing block 12 and the locking block 13 to move. The two ring buckles 11 are rotatably connected to the opposite outer surfaces via a fixing short rod. The bottom of the second fixing block 12 is fixedly connected to the locking block 13. The locking block 13 and the gear 9 can engage, stopping the fixing rod 7 from rotating inside the fixing frame 8, achieving a locking effect. A handle 14 is slidably fitted onto the outer surface of one side of the locking block 13 near the top edge. One end of the handle 14 is fixedly connected to a limit block 15. The handle 14... The limiting block 15 allows the operator to easily control the movement of the locking block 13. The outer surface of the other side of the fixed top plate 10 is provided with a locking groove 16 near the center, and the locking groove 16 is slidably connected to the limiting block 15. When the equipment is raised to the specified height, it is stopped by the motor 3. Under the action of the sliding groove on the outer surface of the handle 14, the unfolding does not affect the rotation of the second fixed block 12 and the locking block 13. When the locking block 13 engages with the tooth groove of the gear 9, the control push handle 14 pushes the limiting block 15 to the locking groove 16 for engagement, so that the locking block 13 and the gear 9 are locked together, ensuring the stability of the engagement of the locking block 13 and the gear 9 and improving the safety of the equipment.
[0023] The top of the main body fixing plate 1 is fixedly provided with slide rails 17 near the front and rear edges, and slide rails 17 are slidably connected to the lower sliding block 5. The slide rails 17 make it easier for the lower sliding block 5 to slide. A limit plate is fixedly provided between the outer surfaces of the other side of the two slide rails 17. The limit plate can prevent the lower sliding block 5 from overstepping and demolding from the slide rails 17.
[0024] A third fixing block 18 is fixedly installed at the top edge of the main fixing plate 1 near the other side, and the third fixing block 18 is rotatably connected to the lead screw 4. The outer surfaces of the front and rear sides of the third fixing block 18 are rotatably connected to the second lifting frame 19 through the fixing short rod. The third fixing block 18 and the second lifting frame 19 can cause the lower sliding block 5 to slide and rise when it moves closer. The outer surfaces of the two second lifting frames 19 on opposite sides are rotatably connected to the upper sliding block 20 near the top edge through the fixing short rod. The bottom of the fixed top plate 10 is provided with a sliding groove, and is slidably connected to the upper sliding block 20 through the sliding groove. The two first lifting frames 6 are rotatably connected to the two second lifting frames 19 through the fixing short rod. Under the action of the upper sliding block 20 and the sliding groove at the bottom of the fixed top plate 10, the equipment is more stable during the lifting process.
[0025] Working Principle: When the lifting platform with safety features is in use, the worker first stands on top of the fixed top plate 10. By pushing the handle 14 upwards, the locking block 13 disengages from the gear 9. By starting the motor 3, the output shaft of the motor 3 drives the lower sliding block 5 to slide to the other side on the slide rail 17 through the rotation of the lead screw 4, causing the first lifting frame 6 and the second lifting frame 19 to rise. Through the sliding groove at the bottom of the fixed top plate 10 and the upper sliding block 20, the equipment is very stable during the lifting process. When the equipment rises to the designated height, in order to ensure the safety of the equipment, by pushing the handle 14 downwards, the locking block 13 engages with the tooth groove of the gear 9. The handle 14 is then pushed inwards to slide the limiting block 15 into the engagement groove 16, so that the locking block 13 locks the fixed rod 7, preventing sudden descent due to equipment failure. This ensures the personal safety of the worker and improves the safety of the equipment.
[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. An elevator with a protection function comprising a main body fixing plate (1), characterized in that: The top of the main fixed plate (1) is fixedly connected with a first fixed block (2) near the edge of one side, the outer surface of one side of the first fixed block (2) is fixedly provided with a motor (3), and the output shaft of the motor (3) extends out of the other outer surface of the first fixed block (2), the other outer surface of the motor (3) is fixedly connected with a lead screw (4) through the output shaft, the outer surface of the lead screw (4) is threadedly sleeved with a lower sliding block (5) near the center, the front and rear outer surfaces of the lower sliding block (5) are rotatably provided with a first lifting frame (6) through a fixed short rod, the opposite outer surfaces of the two first lifting frames (6) are fixedly connected with a fixed rod (7) near the edge of the top end, the outer surface of the fixed rod (7) is sleeved with a fixed frame (8) near the edges of the front and rear sides, the outer surface of the fixed rod (7) is fixedly connected with a gear (9) near the center, the top of the two fixed frames (8) is fixedly connected with a fixed top plate (10), the other outer surface of the fixed top plate (10) is provided with two ring buckles (11) near the center, the opposite outer surfaces of the two ring buckles (11) are rotatably connected with a second fixed block (12) through a fixed short rod, the bottom of the second fixed block (12) is fixedly connected with a clamping block (13), the outer surface of one side of the clamping block (13) is sleeved with a handle (14) near the edge of the top, one end of the handle (14) is fixedly connected with a limiting block (15), the other outer surface of the fixed top plate (10) is provided with a clamping groove (16) near the center, and the clamping groove (16) is slidably connected with the limiting block (15).
2. An elevator with a protection function according to claim 1, characterized in that The top of the main fixed plate (1) is fixedly provided with a sliding rail (17) near the edges of the front and rear sides, and the sliding rail (17) is slidably connected with the lower sliding block (5), and the other outer surfaces of the two sliding rails (17) are fixedly provided with a limiting plate.
3. The elevator with protection function according to claim 1, characterized in that: The top of the main fixed plate (1) is fixedly provided with a third fixed block (18) near the edge of the other side, and the third fixed block (18) is rotatably connected with the lead screw (4).
4. An elevator with a protection function according to claim 3, characterized in that: The front and rear outer surfaces of the third fixed block (18) are rotatably connected with a second lifting frame (19) through a fixed short rod.
5. An elevator with a protection function according to claim 4, characterized in that: The opposite outer surfaces of the two second lifting frames (19) are rotatably connected with an upper sliding block (20) through a fixed short rod near the edge of the top end.
6. The elevator with protection function according to claim 1, characterized in that: The bottom of the fixed top plate (10) is provided with a sliding groove, and is slidably connected with the upper sliding block (20) through the sliding groove.
7. The elevator with protection function according to claim 1, characterized in that: The two first lifting frames (6) are rotatably connected with the two second lifting frames (19) through a fixed short rod.