Anti-falling device for lifting platform
By combining an acceleration sensor and an anti-fall drive motor, the problem of accidental falls of the lifting platform transport vehicle is solved, achieving stability and cushioning of the trolley and improving safety.
Patent Information
- Application Number
- CN202422466301.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-12
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-10-12
AI Technical Summary
Existing lifting platforms do not allow staff to ride on them when transporting goods, which makes it easy for transport vehicles to slip and fall in the event of an accident, endangering the safety of staff.
An accelerometer is used to detect the platform's acceleration, which activates the anti-fall drive motor to move the anti-fall block into the rectangular groove. Friction and buffer components slow down the descent speed, and a fixing mechanism stabilizes the trolley to prevent slippage.
This improves the safety of the lifting platform, prevents transport vehicles from slipping, and protects the safety of workers.
Smart Images
Figure CN223561201U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of lifting platform, concretely to a lifting platform anti -fall device. BACKGROUND
[0002] The lifting platform is a kind of equipment that is widely applied at present, and is developed well to lift goods or workpiece to a certain height, at present, lifting platform is widely used in automobile, container, abrasive tool manufacturing, timber processing and other various industrial enterprises and assembly line, to meet the lifting needs of different operation height.
[0003] The lifting platform for lifting goods in the existing lifting platform needs to be placed in the cart when lifting some scattered parts, then is lifted by the lifting platform, and the lifting platform for conveying goods generally does not allow staff to ride when running, therefore, the transport vehicle for conveying parts is only on the lifting platform, when the transport platform falls accidentally, the transport vehicle on the upper side can slide off the platform, which can cause harm to the staff. UTILITY MODEL CONTENT
[0004] (I) the technical problem solved
[0005] In view of the deficiency of prior art, the utility model provides a lifting platform anti -fall device, solves the problem that the lifting platform for conveying goods generally does not allow staff to ride when running, therefore, the transport vehicle for conveying parts is only on the lifting platform, when the transport platform falls accidentally, the transport vehicle on the upper side can slide off the platform, which can cause harm to the staff.
[0006] (II) technical scheme
[0007] To realize the above-mentioned purpose, the utility model provides the following technical scheme: a lifting platform anti -fall device, including bottom plate, the upper surface of bottom plate is fixedly installed with two mounting plates, the upper surface of two mounting plates is fixedly installed with two U type supports, the inner wall of two U type supports is slidably installed with lifting platform plate, the rear end of the upper surface of lifting platform plate is fixedly installed with installation box, the front surface of installation box is open, the front surface of lifting platform plate is provided with acceleration sensor;
[0008] Fixing mechanism, fixing mechanism sets up on lifting platform plate, and fixing mechanism includes two sliding plates and two L-shaped plates, two sliding plates are slidably installed on the inner wall of installation box, and the front end of two sliding plates is provided with mounting slot, two L-shaped plates are slidably installed on the upper surface of lifting platform plate, and two L-shaped plates are in contact with two sliding plates respectively.
[0009] Preferably, the fixing mechanism further comprises two electric telescopic rods and a rectangular plate, the two electric telescopic rods are fixedly installed in the two installation grooves respectively, the telescopic ends of the two electric telescopic rods are fixedly connected with the corresponding L-shaped plates respectively, and the rectangular plate is fixedly installed on the front surface of the installation box.
[0010] Preferably, a second bidirectional screw rod is rotatably installed on the inner wall of the installation box, the two sliding plates are in threaded connection with the second bidirectional screw rod, a first motor is fixedly installed at the left end of the installation box, the output end of the first motor is rotatably penetrated into the interior of the installation box, and the first motor is in fixed connection with the second bidirectional screw rod.
[0011] Preferably, a plurality of rectangular grooves are formed in the inner walls of the two U-shaped supports, two first installation grooves are formed in the interior of the lifting platform plate, two anti-falling blocks are slidably installed on the inner walls of the two first installation grooves, the anti-falling blocks are each composed of a trapezoidal plate and a circular rod, springs are fixedly installed on the front and rear inner walls of the two first installation grooves, the four springs are respectively sleeved on the outer surfaces of the circular rods of the four anti-falling blocks, the four anti-falling blocks are in fixed connection with the corresponding springs, the circular rods of the four anti-falling blocks are slidably extended to the outer surface of the lifting platform plate, an anti-falling driving motor is fixedly installed on the right surface of the U-shaped support, and the anti-falling driving motor is in electric connection with the acceleration sensor.
[0012] Preferably, a second installation groove is formed in the corresponding inner wall of each of the two first installation grooves, a push plate is slidably installed on the inner wall of each of the two second installation grooves, a first bidirectional screw rod is rotatably installed on the inner wall of the left first installation groove, the right end of the first bidirectional screw rod is rotatably penetrated into the interior of the right first installation groove, the two push plates are in threaded connection with the first bidirectional screw rod, the output end of the anti-falling driving motor is rotatably penetrated into the interior of the right first installation groove, and the anti-falling driving motor is in fixed connection with the first bidirectional screw rod.
[0013] Preferably, hydraulic telescopic rods are fixedly installed on the left and right ends of the upper surface of the bottom plate, the telescopic ends of the two hydraulic telescopic rods are in fixed connection with the lifting platform plate, and four buffer assemblies are fixedly installed on the upper surface of the bottom plate.
[0014] (Three) beneficial effects
[0015] Compared with the prior art, the lifting platform anti-falling device has the following beneficial effects:
[0016] 1. The lifting platform anti-falling device, by rotating the first motor, drives the two sliding plates and cooperates with the two electric telescopic rods to send the two L-shaped plates into the bottom of the cart, stabilizes the cart, can also stabilize other objects with the two L-shaped plates and the sliding plates, and opens the brake on the cart, so that when the lifting platform falls, the cart does not slide off the lifting platform plate, the safety of the staff is ensured, and the safety of the lifting platform is improved.
[0017] 2、The anti-falling device of the lifting platform detects the acceleration of the lifting platform plate through the acceleration sensor, and when the acceleration changes greatly, the anti-falling driving motor is started, so that the four anti-falling blocks enter the inside of the rectangular groove to prevent the falling of the lifting platform plate, when not entering the inside of the rectangular groove, the four anti-falling blocks rub with the U-shaped support to slow down the descending speed of the lifting platform plate, and then the four buffer assemblies buffer the lifting platform plate to prevent the falling and protection of the lifting platform plate, and the safety of the lifting platform is further improved. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is an overall top view structural schematic diagram of the anti-falling device of the lifting platform of the utility model.
[0019] Figure 2 It is an inside cutaway rear view structural schematic diagram of the anti-falling device of the lifting platform of the utility model.
[0020] Figure 3 It is an inside cutaway top view structural schematic diagram of the installation box of the utility model.
[0021] Figure 4 It is an inside cutaway top view structural schematic diagram of the anti-falling device of the lifting platform of the utility model.
[0022] In the drawing: 1, bottom plate; 2, mounting plate; 3, U-shaped support; 4, lifting platform plate; 5, installation box; 6, buffer assembly; 7, sliding plate; 8, L-shaped plate; 9, mounting groove; 10, electric telescopic rod; 11, rectangular plate; 12, rectangular groove; 13, first mounting groove; 14, anti-falling block; 15, spring; 16, second mounting groove; 17, push plate; 18, first bidirectional threaded rod; 19, second bidirectional threaded rod; 20, first motor; 21, anti-falling driving motor; 22, hydraulic telescopic rod; 23, acceleration sensor. DETAILED DESCRIPTION
[0023] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.
[0024] Please refer to Figures 1-4The utility model provides a new technical scheme: a lifting platform anti -falling device, including bottom plate 1, the upper surface fixed mounting of bottom plate 1 has two mounting plates 2, the upper surface fixed mounting of two mounting plates 2 has two U type supports 3, the inner wall of two U type supports 3 is slidably installed with lifting platform plate 4, the upper surface rear end fixed mounting of lifting platform plate 4 has installation box 5, the front surface of installation box 5 is the opening, the front surface of lifting platform plate 4 is provided with acceleration sensor 23, and acceleration sensor 23 is prior art, and the specific model is AS300,
[0025] Fixing mechanism, fixing mechanism sets up on lifting platform plate 4, and fixing mechanism includes two sliding plates 7 and two L-shaped plates 8, two sliding plates 7 are slidably installed on the inner wall of installation box 5, and the front end of two sliding plates 7 is provided with installation slot 9, and two L-shaped plates 8 are slidably installed on the upper surface of lifting platform plate 4, and two L-shaped plates 8 are in contact with two sliding plates 7 respectively.
[0026] Further, the fixing mechanism further includes two electric telescopic rods 10 and a rectangular plate 11, the two electric telescopic rods 10 are fixedly installed in the two installation slots 9 respectively, the telescopic ends of the two electric telescopic rods 10 are fixedly connected with the corresponding L-shaped plates 8 respectively, and the rectangular plate 11 is fixedly installed on the front surface of the installation box 5.
[0027] Further, the second bidirectional screw rod 19 is rotatably installed on the inner wall of the installation box 5, the two sliding plates 7 are threadedly connected with the second bidirectional screw rod 19, the first motor 20 is fixedly installed on the left end of the installation box 5, the output end of the first motor 20 is rotatably penetrated into the inside of the installation box 5, and the first motor 20 is fixedly connected with the second bidirectional screw rod 19.
[0028] Further, by rotating the first motor 20, the two sliding plates 7 are driven and cooperate with the two electric telescopic rods 10 to send the two L-shaped plates 8 under the trolley, stabilize the trolley, and open the brake on the trolley, prevent the trolley from sliding off the lifting platform plate 4 when the lifting platform falls, affect the safety of the staff, and improve the safety of the lifting platform.
[0029] Further, the inner walls of the two U-shaped supports 3 are provided with a plurality of rectangular grooves 12, the inner portion of the lifting platform plate 4 is provided with two first mounting grooves 13, the inner walls of the two first mounting grooves 13 are slidably provided with two anti-falling blocks 14, the anti-falling blocks 14 are each composed of a trapezoidal plate and a circular rod, the front and rear inner walls of the two first mounting grooves 13 are fixedly provided with springs 15, the four springs 15 are respectively sleeved on the outer surfaces of the circular rods of the four anti-falling blocks 14, the four anti-falling blocks 14 are fixedly connected with the corresponding springs 15, the circular rods of the four anti-falling blocks 14 are slidably extended to the outer surface of the lifting platform plate 4, and the right surface of the U-shaped support 3 is fixedly provided with an anti-falling driving motor 21, and the anti-falling driving motor 21 is electrically connected with an acceleration sensor 23.
[0030] Further, the corresponding inner walls of the two first mounting grooves 13 are provided with second mounting grooves 16, the inner walls of the two second mounting grooves 16 are slidably provided with push plates 17, the inner wall of the left first mounting groove 13 is rotatably provided with a first bidirectional threaded rod 18, the right end of the first bidirectional threaded rod 18 rotatably penetrates into the interior of the right first mounting groove 13, the two push plates 17 are threadedly connected with the first bidirectional threaded rod 18, and the output end of the anti-falling driving motor 21 rotatably penetrates into the interior of the right first mounting groove 13, and the anti-falling driving motor 21 is fixedly connected with the first bidirectional threaded rod 18.
[0031] Further, the upper surfaces of the bottom plate 1 are fixedly provided with hydraulic telescopic rods 22 at the left and right ends, the telescopic ends of the two hydraulic telescopic rods 22 are fixedly connected with the lifting platform plate 4, and the upper surface of the bottom plate 1 is fixedly provided with four buffer assemblies 6, and the buffer assembly 6 comprises a damper and a buffer spring.
[0032] Further, the acceleration sensor 23 detects the acceleration of the lifting platform plate 4, when the acceleration changes greatly, the anti-falling driving motor 21 is started, so that the four anti-falling blocks 14 enter the interiors of the rectangular grooves 12 to prevent the falling of the lifting platform plate 4, when the four anti-falling blocks 14 do not enter the interiors of the rectangular grooves 12, the four anti-falling blocks 14 rub against the U-shaped support 3 to slow down the descending speed of the lifting platform plate 4, and the four buffer assemblies 6 further buffer and protect the lifting platform plate 4, thereby further improving the safety of the lifting platform.
[0033] Working principle: when using the device, the trolley containing scattered parts can be pushed to the lifting platform plate 4, then the two electric telescopic rods 10 are started, the two electric telescopic rods 10 drive the two L-shaped plates 8 to move away from the mounting box 5, then the first motor 20 is started, the first motor 20 drives the second bidirectional threaded rod 19 to rotate, so that the two sliding plates 7 drive the two L-shaped plates 8 to approach the wheels of the trolley and enter the bottom of the trolley, then the two electric telescopic rods 10 drive the two L-shaped plates 8 to move backward, the trolley is pulled close to the rectangular plate 11, so that the trolley is close to the rectangular plate 11, the stability of the trolley is improved, when the lifting platform falls accidentally, the acceleration sensor 23 detects the change of acceleration, the anti-falling drive motor 21 is started, the anti-falling drive motor 21 drives the first bidirectional threaded rod 18 to rotate, the first bidirectional threaded rod 18 drives the two push plates 17 to move away from each other, the two push plates 17 push the four anti-falling blocks 14 in the two first mounting grooves 13 outward, the round rods of the four anti-falling blocks 14 are pushed into the rectangular grooves 12 on the U-shaped support 3, if they are not pushed into the corresponding rectangular grooves 12, the four anti-falling blocks 14 rub with the U-shaped support 3 to a certain extent, the speed of the lifting platform plate 4 is reduced, and the four anti-falling blocks 14 are tried to enter the multiple rectangular grooves 12 below again, so as to prevent the lifting platform plate 4 from falling, if the anti-falling blocks 14 do not enter the rectangular grooves 12, when falling on the lifting platform plate 4, the four buffer assemblies 6 buffer the lifting platform plate 4, absorb the impact force when the lifting platform plate 4 falls, and the two L-shaped plates 8 and the rectangular plate 11 stabilize the trolley on the lifting platform plate 4, prevent the trolley from moving randomly and falling down when the lifting platform plate 4 falls, affect the use of the lifting platform, and endanger the safety of the staff.
[0034] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A fall arrestor for a lifting platform, comprising a base plate (1), two mounting plates (2) fixedly installed on the upper surface of the base plate (1), two U-shaped brackets (3) fixedly installed on the upper surface of the two mounting plates (2), and a lifting platform plate (4) slidably installed on the inner wall of the two U-shaped brackets (3), characterized in that: The upper surface of the lifting platform plate (4) is fixedly installed with a mounting box (5) at the rear end. The front surface of the mounting box (5) is open, and an acceleration sensor (23) is provided on the front surface of the lifting platform plate (4). The fixing mechanism is set on the lifting platform plate (4). The fixing mechanism includes two sliding plates (7) and two L-shaped plates (8). The two sliding plates (7) are slidably installed on the inner wall of the mounting box (5). The front end of the two sliding plates (7) is provided with mounting grooves (9). The two L-shaped plates (8) are slidably installed on the upper surface of the lifting platform plate (4). The two L-shaped plates (8) are in contact with the two sliding plates (7) respectively.
2. The anti-fall device for a lifting platform according to claim 1, characterized in that: The fixing mechanism also includes two electric telescopic rods (10) and a rectangular plate (11). The two electric telescopic rods (10) are fixedly installed inside the two mounting slots (9) respectively. The telescopic ends of the two electric telescopic rods (10) are fixedly connected to the corresponding L-shaped plates (8) respectively. The rectangular plate (11) is fixedly installed on the upper front surface of the mounting box (5).
3. The anti-fall device for a lifting platform according to claim 1, characterized in that: The second bidirectional threaded rod (19) is rotatably installed on the inner wall of the mounting box (5). Both sliding plates (7) are threadedly connected to the second bidirectional threaded rod (19). The first motor (20) is fixedly installed on the left end of the mounting box (5). The output end of the first motor (20) rotates through into the interior of the mounting box (5). The first motor (20) is fixedly connected to the second bidirectional threaded rod (19).
4. The anti-fall device for a lifting platform according to claim 1, characterized in that: Multiple rectangular slots (12) are provided on the inner walls of the two U-shaped brackets (3). Two first mounting slots (13) are provided inside the lifting platform plate (4). Two anti-fall blocks (14) are slidably installed on the inner walls of the two first mounting slots (13). The anti-fall blocks (14) are composed of trapezoidal plates and round rods. Springs (15) are fixedly installed on the front and rear inner walls of the two first mounting slots (13). Four springs (15) are respectively sleeved on the outer surface of the round rods on the four anti-fall blocks (14). The four anti-fall blocks (14) are fixedly connected to the corresponding springs (15). The round rods on the four anti-fall blocks (14) slide to the outer surface of the lifting platform plate (4). An anti-fall drive motor (21) is fixedly installed on the right surface of the U-shaped bracket (3). The anti-fall drive motor (21) is electrically connected to the acceleration sensor (23).
5. A fall protection device for a lifting platform according to claim 4, characterized in that: A second mounting groove (16) is provided on the corresponding inner wall of each of the two first mounting grooves (13). A push plate (17) is slidably installed on the inner wall of each of the two second mounting grooves (16). A first bidirectional threaded rod (18) is rotatably installed on the inner wall of the left first mounting groove (13). The right end of the first bidirectional threaded rod (18) rotatably penetrates into the interior of the right first mounting groove (13). Both push plates (17) are threadedly connected to the first bidirectional threaded rod (18). The output end of the anti-fall drive motor (21) rotatably penetrates into the interior of the right first mounting groove (13). The anti-fall drive motor (21) is fixedly connected to the first bidirectional threaded rod (18).
6. The anti-fall device for a lifting platform according to claim 1, characterized in that: Hydraulic telescopic rods (22) are fixedly installed on both the left and right ends of the upper surface of the base plate (1). The telescopic ends of the two hydraulic telescopic rods (22) are fixedly connected to the lifting platform plate (4). Four buffer components (6) are fixedly installed on the upper surface of the base plate (1).