Self-locking anti-falling lifting work platform

Abstract

The utility model belongs to the field of elevating operation platform especially, a kind of self-locking anti-falling elevating operation platform, to the falling risk problem caused by adventurous behavior (such as exploring body, leaning) or environmental factors (such as inclination, strong wind) of personnel in complex working conditions of existing traditional platform, present and propose the following scheme, it includes concave seat, platform body, driver and safety mechanism.Safety mechanism adopts the sliding limit design of H type moving block and connecting frame, cooperate high-strength connecting rope (steel wire rope / iron chain), when personnel falls, pull distance, form physical hover;Waistband and leg fixed band pass through female buckle-male buckle quick coupling, construct the three-point fixed structure of waist-thigh-inner side of leg, make falling impact force evenly distribute in pelvic and femur, avoid soft tissue injury.Driver adopts cross shear type lifting structure, ensure that platform body stably lifts through the rolling cooperation of guide wheel and guide slot.Door body sets up the double locking mechanism of T type bolt and insert ring, prevent misopening.

Description

Technical Field

[0001] This utility model relates to the field of work platform technology, and in particular to a self-locking anti-fall lifting work platform. Background Technology

[0002] A lifting work platform is a mechanical device used for vertically lifting personnel or goods, and is widely used in industries such as manufacturing, construction, logistics, warehousing, and municipal maintenance. It achieves its lifting function through mechanical or hydraulic systems, providing a safe and efficient operating platform for high-altitude operations.

[0003] Traditional lifting work platforms typically protect personnel from falls using guardrails. However, if personnel take risks (such as reaching out to retrieve objects or leaning against the guardrails), they are prone to losing balance and falling in complex working environments (such as inclined platforms or strong winds). Utility Model Content

[0004] The purpose of this utility model is to solve the problem that traditional lifting work platforms in the prior art usually protect personnel from falling by guardrails. However, if personnel take risky actions (such as reaching out to retrieve objects or leaning against the guardrails), they are prone to losing balance and falling in complex working environments (such as inclined platforms or strong winds). Therefore, a self-locking anti-fall lifting work platform is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A self-locking anti-fall lifting platform includes a concave base, a platform body, and a drive for lifting the platform body. A guardrail is welded to the top of the platform body, and a door is installed on one side of the guardrail via a hinge. A connecting frame is welded to the top of the guardrail, and a safety mechanism is provided on the connecting frame. The safety mechanism can protect personnel and prevent them from falling from the platform body.

[0007] In one possible design, the safety mechanism includes a movable block, a movable hole, a connecting rope, a circular plate, two leg fixing straps, and an inner leg fixing strap. The movable hole is formed on a connecting frame. The movable block is H-shaped, and its center is slidably connected to the inner wall of the movable hole. The diameter of the center of the movable block is the same as the width of the movable hole, and its top and bottom ends are larger than the width of the movable hole. One end of the connecting rope is fixedly connected to one side of the movable block, and the other end of the connecting rope is fixedly provided with a U-shaped through frame. The top of the circular plate is welded to the top of the through frame, and a waist belt for fixing the waist is inserted through the through frame. One end of each of the two leg fixing straps is fixedly connected to the two sides of the circular plate, and a through frame is welded to the bottom of the circular plate. The inner leg fixing straps are inserted through the through frame, and male buckles are fixedly provided at both ends of the inner leg fixing straps. Female buckles are fixedly provided at the other ends of the two leg fixing straps, and the female buckles and male buckles together form a buckle.

[0008] In one possible design, the safety mechanism further includes a U-shaped frame and a limiting strip. One side of the frame is fixedly connected to one end of the belt. The top and bottom inner walls of the frame are provided with grooves. The inner walls of the two grooves are rotatably connected to the same rotating rod. One end of the limiting strip is welded to one side of the rotating rod. The other end of the belt is provided with multiple insertion holes. One end of the belt passes through the frame, and one end of the limiting strip is inserted into the insertion holes and abuts against one side of the frame.

[0009] In one possible design, the actuator includes a frame I, a frame II, a frame III, a frame IV, and a driving component. Guide wheels I are mounted at both ends of the bottom of frame I. Guide grooves I are formed on the inner walls of both sides of the concave seat, and the guide wheels I roll within the guide grooves I. The bottom of frame II is hinged to one end of the concave seat, and the intersection of frame I and frame II is hinged. The bottom of frame III is hinged to the top of frame II. The bottom of the platform is concave, and the top of frame III is connected to the platform. One end of the frame is hinged to the other end. The bottom end of the frame IV is hinged to the top end of the frame I. Guide wheels II are installed on both sides of the top end of the frame IV. Guide grooves II are opened on both sides of the inner wall of the platform. The guide wheels II roll with the guide grooves II. The intersection of the frame III and the frame IV is hinged. A hinge seat I is welded to one side of the inner wall of the frame IV. The telescopic part of the drive component is hinged to the hinge seat I. A hinge seat II is welded to one side of the inner wall of the frame I. The fixed part of the drive component is hinged to the hinge seat II.

[0010] In one possible design, reinforcing plates are welded to three sides of the connecting frame to enhance its strength, and hooks for hanging items are welded to the inner side of the connecting frame.

[0011] In one possible design, a ring is welded to one side of the guardrail, and two rings are welded to one side of the gate. The inner walls of the two rings are slidably connected to the same pin, which is T-shaped. One end of the pin is inserted into the ring. A T-shaped block is welded to one side of the gate, and one end of the pin has an insertion hole. One end of the T-shaped block is inserted into the insertion hole.

[0012] In this application, during use, the operator opens the guardrail gate, climbs onto the platform, closes the gate, and manually pulls the latch to insert it into the insert ring. Rotating the latch causes one end of the T-shaped block to insert into the latch's insertion hole. Then, the circular plate in the installation mechanism is moved to the back of the waist. One end of the waist belt is passed through the frame, and the insertion hole is selected according to the operator's waist circumference. The limiting strip is rotated to insert into the insertion hole and press against the frame. The two leg-fixing straps are wrapped around the thighs and automatically locked in place by the female buckle and the male buckle of the inner leg-fixing strap. The leg-fixing straps have a double-layer structure and an adjusting buckle. After both legs are secured, work can begin. The operator can manually push the device. The H-shaped moving block slides along the moving hole and moves on the platform. The connecting rope has a certain length and can be made of steel wire rope, iron chain, or nylon rope, etc. The specific size and material specifications can be selected according to actual needs. Then, the driving component is activated (the driving component is a hydraulic cylinder, which needs to be connected to the matching hydraulic pump station, controller and other components for use). The telescopic part of the driving component pushes the frame IV to rotate around the hinge point. Through the cross linkage of frame I and frame IV, the platform rises smoothly. When a person accidentally falls, the composite structure of the waist belt and leg fixing belt will suspend the person above the platform to prevent them from falling to the ground.

[0013] The beneficial effects of this utility model are as follows:

[0014] In this utility model, the self-locking anti-fall lifting work platform achieves sliding guidance and anti-detachment functions through the cooperation of the center diameter and the moving hole. When a person accidentally falls during operation, the length of the connecting rope shortens to form a physical constraint. The connecting rope is made of high-strength materials such as steel wire rope / chain, which can effectively pull the person and prevent them from falling further.

[0015] In this invention, a self-locking fall-prevention lifting platform is constructed by quickly connecting a waist belt and leg anchors via a female-male buckle, forming a three-point fixation structure at the waist, thigh, and inner thigh. During a fall, the body weight is evenly distributed across the pelvis and femur, preventing soft tissue contusions caused by a single anchor point. Attached Figure Description

[0016] Figure 1 This is a front view structural diagram of a self-locking anti-fall lifting platform proposed in this utility model;

[0017] Figure 2 This is a side view of the self-locking anti-fall lifting platform proposed in this utility model.

[0018] Figure 3 This is a schematic diagram of the first part of the structure of a self-locking anti-fall lifting work platform proposed in this utility model;

[0019] Figure 4This is a schematic diagram of the installation mechanism of a self-locking anti-fall lifting platform proposed in this utility model;

[0020] Figure 5 This is a schematic diagram of the belt structure of a self-locking anti-fall lifting work platform proposed in this utility model.

[0021] In the diagram: 1. Concave base; 2. Frame I; 3. Frame II; 4. Drive unit; 5. Frame IV; 6. Frame III; 7. Platform; 8. Guardrail; 9. Connecting frame; 10. Moving block; 11. Moving hole; 12. Insert ring; 13. Hook; 14. Connecting rope; 15. Waist belt; 16. Leg fixing strap; 17. Female buckle; 18. Male buckle; 19. Limiting strip; 20. Frame. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] In one embodiment: Refer to Figure 1-5 A self-locking, fall-prevention lifting platform, used in the field of lifting platforms, includes: a concave base 1, a platform body 7, and a drive unit. A guardrail 8 is welded to the top of the platform body 7, and a door is hinged to one side of the guardrail 8. A connecting frame 9 is welded to the top, and a safety mechanism is installed on the connecting frame 9. The bottom of the platform body 7 has a concave structure, and guide grooves II are formed on the inner walls of both sides, which cooperate with the guide wheels II of the drive unit to achieve smooth lifting.

[0024] Safety mechanism: A rectangular moving hole 11 is opened on the connecting frame 9. The diameter of the central axis of the H-shaped moving block 10 is the same as the width of the moving hole 11, both being 30mm. The top / bottom width is 50mm, forming an anti-detachment structure.

[0025] One side of the movable block 10 is connected by a steel wire rope 14, and the other end of the steel wire rope is welded with a U-shaped frame. A waist belt 15 is threaded through the frame, and the waist belt 15 is made of polyester webbing.

[0026] The top of the circular plate is welded to the frame, and two leg fixing straps 16 are fixed on both sides by rivets. The bottom is fitted with a leg inner fixing strap that passes through the frame. The two ends of the leg inner fixing strap are heat-pressed into male buckles 18, and female buckles 17 are sewn onto the ends of the leg fixing straps 16.

[0027] A frame 20 is sewn to one end of the waist belt 15. The top / bottom of the frame 20 has grooves and a rotating rod is embedded therein. One end of the limiting strip 19 is welded to the rotating rod. Ten equidistant holes with a hole spacing of 20mm are opened at the other end of the waist belt 15. After being inserted into the frame 20, the limiting strip 19 is rotated so that its end is inserted into the hole.

[0028] The drive unit adopts a cross-scissor lifting structure, including frame I2-frame IV5 and drive component 4, i.e., hydraulic cylinder: the bottom end of frame I2 is equipped with guide wheel I, which rolls with the guide groove I of concave seat 1; the bottom end of frame II3 is hinged to concave seat 1 through a pin, and frame I2 and frame II3 are cross-hinged at a distance from the bottom end; the bottom end of frame III6 is hinged to the top end of frame II3, and the top end is hinged to one end of platform 7; the bottom end of frame IV5 is hinged to the top end of frame I2, and the top end is equipped with guide wheel II, which rolls with the guide groove II of platform 7;

[0029] The telescopic part of the drive component 4 is connected to the frame IV 5 via hinge seat I, and the fixed part is connected to the frame I 2 via hinge seat II. All hinge points use oil-impregnated copper bushing bearings.

[0030] In another embodiment: Reference Figure 1-5 The connecting frame 9 has L-shaped reinforcing plates welded on three sides, and three hooks 13 welded on the inner side;

[0031] A locking ring 12 is welded to one side of the guardrail 8, and a T-shaped pin is installed on the gate. After the pin is inserted into the locking ring 12, it is rotated 90° so that the T-shaped block on the side wall of the gate is embedded in the insertion hole at the end of the pin, forming a mechanical interlock.

[0032] However, as is well known to those skilled in the art, the working principle and wiring method of the drive component 4 (hydraulic cylinder) are conventional means or common knowledge, and will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0033] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A self-locking, fall-prevention lifting platform, characterized in that, Includes a concave seat (1), a platform (7) and a drive for driving the platform (7) to rise and fall. A guardrail (8) is welded to the top of the platform (7). A door is installed on one side of the guardrail (8) via a hinge. A connecting frame (9) is welded to the top of the guardrail (8). A safety mechanism is provided on the connecting frame (9). The safety mechanism can protect personnel and prevent them from falling from the platform (7). The safety mechanism includes a movable block (10), a movable hole (11), a connecting rope (14), a circular plate, two leg fixing straps (16), and an inner leg fixing strap. The movable hole (11) is opened on the connecting frame (9). The movable block (10) is H-shaped. The center of the movable block (10) is slidably connected to the inner wall of the movable hole (11). The diameter of the center of the movable block (10) is the same as the width of the movable hole (11), and the top and bottom ends are larger than the width of the movable hole (11). One end of the connecting rope (14) is fixed to one side of the movable block (10). The connecting rope (14) is fixedly connected to the other end of a U-shaped frame. The top of the circular plate is welded to the top of the frame. A waist belt (15) for fixing the waist is inserted through the frame. One end of each of the two leg fixing straps (16) is fixedly connected to the two sides of the circular plate. A frame is welded to the bottom of the circular plate. An inner leg fixing strap is inserted through the frame. Both ends of the inner leg fixing strap are fixedly provided with male buckles (18). The other ends of the two leg fixing straps (16) are fixedly provided with female buckles (17). The female buckle (17) and the male buckle (18) together form a buckle.

2. The self-locking anti-fall lifting work platform according to claim 1, characterized in that, The safety mechanism also includes a U-shaped frame (20) and a limiting strip (19). One side of the frame (20) is fixedly connected to one end of the waist belt (15). The top inner wall and bottom inner wall of the frame (20) are provided with grooves. The inner walls of the two grooves are rotatably provided with the same rotating rod. One end of the limiting strip (19) is welded to one side of the rotating rod. The other end of the waist belt (15) is provided with multiple insertion holes. One end of the waist belt (15) passes through the frame (20). One end of the limiting strip (19) is inserted into the insertion hole and abuts against one side of the frame (20).

3. The self-locking anti-fall lifting work platform according to claim 1, characterized in that, The drive unit includes frame I (2), frame II (3), frame III (6), frame IV (5) and drive component (4). Guide wheels I are installed at both ends of the bottom of frame I (2). Guide grooves I are provided on both sides of the inner wall of the concave seat (1). The guide wheels I roll with the guide grooves I. The bottom end of frame II (3) is hinged to one end of the concave seat (1). Frame I (2) and frame II (3) are hinged at their intersection. The bottom end of frame III (6) is hinged to the top end of frame II (3). The bottom of the platform (7) is concave. The top end of frame III (6) is hinged to the platform. One end of the body (7) is hinged together. The bottom end of the frame IV (5) is hinged together with the top end of the frame I (2). Guide wheels II are installed on both sides of the top end of the frame IV (5). Guide grooves II are opened on both sides of the inner wall of the platform (7). The guide wheels II and the guide grooves II roll together. The intersection of the frame III (6) and the frame IV (5) is hinged together. A hinge seat I is welded to one side of the inner wall of the frame IV (5). The telescopic part of the drive (4) is hinged to the hinge seat I. A hinge seat II is welded to one side of the inner wall of the frame I (2). The fixed part of the drive (4) is hinged to the hinge seat II.

4. The self-locking anti-fall lifting work platform according to claim 1, characterized in that, The connecting frame (9) has reinforcing plates welded on three sides to strengthen its strength, and hooks (13) are welded on the inner side of the connecting frame (9) to facilitate hanging items.

5. The self-locking anti-fall lifting work platform according to claim 1, characterized in that, A ring (12) is welded to one side of the guardrail (8), and two rings are welded to one side of the gate. The inner walls of the two rings are slidably connected to the same pin. The pin is T-shaped, and one end of the pin is inserted into the ring (12). A T-shaped block is welded to one side of the gate. One end of the pin has an insertion hole, and one end of the T-shaped block is inserted into the insertion hole.

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