Gondola lifting and end limit stop device

Abstract

The utility model discloses a hanging basket hoisting and terminal extreme limit stop device, including hanging basket, the both ends top side wall of hanging basket middle fixedly connected with control box, is connected with the cable in control box, and one end of cable is wound and is connected with the winding roller, and both ends of winding roller are rotatably connected with the side board, and the top side wall middle fixedly connected with the link frame of side board, and the middle detachable type connection of link frame has fixed column, and the telescopic swing joint of fixed column bottom end has movable column, and the bottom end of movable column is tapered structure and is combined with the cable that winds on winding roller, the utility model has the following advantages: the telescopic rod of setting up can drive the adjustment of card column, so can the one end of card column is inserted between the gear teeth of gear, thereby realizes the gear limit fixed function, when the winding roller naturally cannot rotate when gear is not rotating, so the cable will not continue to stretch, thereby realizes extreme limit, avoids the safety problem caused by the excessive stretching of cable.

Description

Technical Field

[0001] This utility model relates to the technical field of a suspended basket rope limiting device, specifically to a suspended basket lifting and terminal limit limiting device. Background Technology

[0002] A suspended platform is a suspended support device that can transport workers to different heights to facilitate high-altitude work. It is one of the most commonly used support devices for high-altitude operations. It is often used in fields such as cleaning or construction of building exterior walls. To ensure safety, many suspended platforms are equipped with limit devices to ensure the stability of the suspended platform.

[0003] The suspended platform is connected to the load-bearing body via a drive device and cables. The limiting device is basically installed on the drive device, which can position the cables in time to fix the suspended platform at a specified height and prevent the cables from breaking due to overstretching. However, a suspended platform that relies on only one limiting device has poor safety, and if it is damaged, the platform will fall directly without additional positioning devices. Therefore, lifting and terminal limit devices for the suspended platform are set up. Utility Model Content

[0004] The technical solution adopted by this utility model to solve the technical problem is: a suspended platform lifting and terminal limit device, including a suspended platform, a control box fixedly connected to the middle of the top side walls at both ends of the suspended platform, a cable connected inside the control box, a winding roller wound around one end of the cable, side plates rotatably connected to both ends of the winding roller, a connecting frame fixedly connected to the middle of the top side wall of the side plate, a fixed column detachably connected to the middle of the connecting frame, a movable column telescopically connected to the bottom end of the fixed column, the bottom end of the movable column having a conical structure and fitting against the cable wound on the winding roller.

[0005] As a preferred embodiment of this utility model, a gear is rotatably connected to the inner sidewall of the side plate, and a connecting block is fixedly connected to the sidewall of the side plate near the gear. The connecting block has an inclined structure and a telescopic rod is rotatably connected to one sidewall. A locking pin is rotatably connected to the output end of the telescopic rod. The locking pin is rotatably connected to the sidewall of the side plate through its end away from the gear. One end of the locking pin is engaged between the teeth of the gear. Both ends of the take-up roller extend into the side plate and are detachably connected to one sidewall of the gear.

[0006] As a preferred embodiment of this utility model, the connecting frame is an L-shaped structure, the fixed column is located in the middle of the two connecting frames, a spring is fixedly connected to the top side wall inside the fixed column, one end of the movable column is telescopically connected inside the fixed column and fixedly connected to the bottom end of the spring, extension plates are fixedly connected to both sides of the movable column located inside the fixed column, the extension plates are L-shaped, and support plates are fixedly connected to both sides of the fixed column located below the extension plates, a switch is embedded in the top side wall of the support plate, and the switch is electrically connected to the telescopic rod through an electrical wire.

[0007] As a preferred technical solution of this utility model, the control box has an inner groove, and a follower plate is rotatably connected to the middle side wall of the inner groove. Both ends of the follower plate and the opposite side walls are fixedly connected to protrusions. The protrusions are semi-circular structures with grooves in the middle side walls. The follower plate has a through hole in the middle. One end of the cable passes through the through hole, passes through the bottom of the control box, and is connected to the pulley group on the basket.

[0008] As a preferred embodiment of this utility model, two storage blocks are fixedly connected to the inner side wall of the control box. The two storage blocks are inclined relative to each other. The storage blocks correspond to the protrusions, and the side walls of the storage blocks and protrusions are open structures. An extrusion plate is fixedly connected to the middle of the inner wall of the storage blocks. The extrusion plate corresponds to the groove on the protrusion, and the groove corresponds to the cable. The protrusion is inserted into the storage block. A motor is detachably connected to the middle of one side wall of the control box. The output end of the motor extends into the control box and is detachably connected to the center point of the follower plate.

[0009] The present invention has the following advantages: the telescopic rod can drive and adjust the locking pin, so that one end of the locking pin can be inserted between the teeth of the gear, thereby realizing the function of limiting and fixing the gear. When the gear is not rotating, the winding roller naturally cannot rotate, so the cable will not continue to extend, thereby realizing the limit limit and avoiding the safety problem caused by the excessive extension of the cable.

[0010] When needed, the motor is started to drive the follower plate to rotate, thereby pushing both ends of the cable into the compression plate, so that the cable stops running and is in a relatively fixed state. This allows the basket to stop and prevent it from falling further. It can also play an auxiliary positioning function when positioning and hovering. When it is necessary to lift, the follower plate can be rotated back to its original position. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural schematic diagram of a preferred embodiment of the present invention;

[0012] Figure 2This is a schematic diagram of the limit limiting structure of a preferred embodiment of the present invention;

[0013] Figure 3 This is a schematic diagram of the disassembled lifting limit structure of a preferred embodiment of the present invention.

[0014] Explanation of reference numerals in the attached drawings: 1. Suspended basket; 2. Control box; 3. Motor; 4. Cable; 5. Rewind roller; 6. Side plate; 7. Connecting frame; 8. Fixed column; 9. Movable column; 10. Gear; 11. Connecting block; 12. Telescopic rod; 13. Locking column; 14. Spring; 15. Extension plate; 16. Support plate; 17. Follower plate; 18. Protrusion; 19. Storage block; 20. Extrusion plate. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] Please refer to the following: Figure 1-3 The present invention relates to a hoisting and terminal limit device for a suspended platform, comprising a suspended platform 1, a control box 2 fixedly connected to the middle of the top side walls at both ends of the suspended platform 1, a cable 4 connected inside the control box 2, a winding roller 5 wound around one end of the cable 4, side plates 6 rotatably connected to both ends of the winding roller 5, a connecting frame 7 fixedly connected to the middle of the top side wall of the side plate 6, a fixed column 8 detachably connected to the middle of the connecting frame 7, a movable column 9 telescopically connected to the bottom end of the fixed column 8, the bottom end of the movable column 9 having a conical structure and fitting against the cable 4 wound on the winding roller 5;

[0017] A gear 10 is rotatably connected to the inner side wall of the side plate 6. A connecting block 11 is fixedly connected to the side wall of the side plate 6 near the gear 10. The connecting block 11 has an inclined structure, and a telescopic rod 12 is rotatably connected to one side wall. A locking pin 13 is rotatably connected to the output end of the telescopic rod 12. The locking pin 13 is rotatably connected to the inner side wall of the side plate 6 through its end away from the gear 10. One end of the locking pin 13 is engaged between the teeth of the gear 10. Both ends of the take-up roller 5 extend into the side plate 6 and are detachably connected to one side wall of the gear 10. The connecting frame 7 is L-shaped. The structure is L-shaped. The fixed column 8 is located in the middle of the two connecting frames 7. The top side wall of the fixed column 8 is fixedly connected to a spring 14. One end of the movable column 9 is telescopically connected inside the fixed column 8 and fixedly connected to the bottom end of the spring 14. Both sides of the movable column 9 located inside the fixed column 8 are fixedly connected to extension plates 15. The extension plates 15 are L-shaped. Both sides of the fixed column 8 located below the extension plates 15 are fixedly connected to support plates 16. The top side wall of the support plate 16 is inlaid with a switch, and the switch is electrically connected to the telescopic rod 12 through an electric wire.

[0018] The technical effect of this solution is as follows: Since the take-up roller 5 is connected to the gear 10, the gear 10 will also rotate when the take-up roller 5 rotates. Therefore, when needed, the telescopic rod 12 is activated to drive the locking pin 13 to lock one end of it between the teeth of the gear 10, so that the gear 10 can be fixed. With the gear 10 fixed, the take-up roller 5 will also be synchronously limited to stop rotating. Since the cable 4 is wound on the take-up roller 5, when the take-up roller 5 stops rotating, the cable 4 will naturally not continue to extend, thus avoiding safety problems caused by the excessive extension of the cable 4.

[0019] To ensure that the cable 4 is limited before its maximum length, a movable column 9 is set up. As the cable 4 extends and is wound around the take-up roller 5, the diameter of the cable 4 will gradually decrease. Therefore, when it shrinks to the maximum length, the extension plate 15 will press against the switch on the support plate 16, thereby activating the telescopic rod 12 to position the gear 10, thus achieving the function of limit positioning.

[0020] The control box 2 has an inner groove, and a follower plate 17 is rotatably connected to the middle side wall of the inner groove. Both ends of the follower plate 17 and its opposite side walls are fixedly connected to protrusions 18. The protrusions 18 are semi-circular in structure and have a groove in their middle side wall. A through hole is formed in the middle of the follower plate 17. One end of the cable 4 passes through the through hole, through the bottom of the control box 2, and connects to the pulley system on the basket 1. Two storage blocks 19 are fixedly connected to the inner side wall of the control box 2, and the two storage blocks 19 are inclined relative to each other. The structure includes a storage block 19 corresponding to a protrusion 18, with the sidewalls of the storage block 19 and protrusion 18 being open structures. An extrusion plate 20 is fixedly connected to the middle of the inner wall of the storage block 19. The extrusion plate 20 corresponds to the groove on the protrusion 18, and the groove corresponds to the cable 4. The protrusion 18 is inserted into the storage block 19. A motor 3 is detachably connected to the middle of one sidewall of the control box 2. The output end of the motor 3 extends into the control box 2 and is detachably connected to the center point of the follower plate 17.

[0021] The technical effect of this solution is as follows: When the cable is moved to the designated height, the starter motor 3 drives the follower plate 17 to rotate. The rotation of the follower plate 17 causes the cable 4 to change from a vertical state to a partially tilted state, increasing the friction of the cable 4. The cable 4 is pushed into the storage block 19 by the protrusion 18, and the compression plate 20 achieves the function of completely positioning the cable 4. When the cable 4 is no longer moving, the basket 1 will naturally not rise or fall. This is because the operation of the basket 1 is not only achieved by the rotation of the winding roller 5, but also by the pulley group on the basket 1. Therefore, when the cable 4 and the basket 1 form a fixed effect, the pulley group is no longer running, so that the basket 1 is stably suspended at the required height. When the limit switch fails, the above function can also achieve short-term limiting, improving safety performance.

[0022] Specifically, in use, as the take-up roller 5 rotates, the cable 4 on it gradually decreases in diameter, causing the movable column 9 to descend synchronously. As the movable column 9 descends, the extension plate 15 is driven by the spring 14 to fall synchronously. Finally, the extension plate 15 presses against the support plate 16, triggering a switch and activating the telescopic rod 12. The telescopic rod 12 then engages one end of the locking pin 13 with the teeth of the gear 10, thus positioning the take-up roller 5 and preventing the cable 4 from extending further. The extreme length could lead to a safety accident. At the same time, the motor 3 can be started to drive the follower plate 17 to rotate. As the follower plate 17 rotates, the cable 4 can be retracted into the groove of the protrusion 18. In this way, the cable 4 can be pushed into the storage block 19 by the protrusion 18. After the fixed protrusion 18 is inserted into the storage block 19, the extrusion plate 20 will also be inserted into the groove to achieve clamping and limiting of the cable 4, ensuring that the suspended basket 1 is stably at the specified height. It can also add an extra layer of protection on the basis of the side plate 6 and its components, improving the overall safety of the suspended basket 1.

[0023] The above are merely preferred embodiments of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

[0024] All other parts of this utility model that are not described in detail belong to the prior art, and therefore will not be described in detail here.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A hoisting and terminal limit device for a suspended platform, comprising a suspended platform (1), characterized in that, A control box (2) is fixedly connected to the middle of the top side wall at both ends of the suspended basket (1). A cable (4) is connected inside the control box (2). A take-up roller (5) is wound around one end of the cable (4). Side plates (6) are rotatably connected to both ends of the take-up roller (5). A connecting frame (7) is fixedly connected to the middle of the top side wall of the side plate (6). A fixed column (8) is detachably connected to the middle of the connecting frame (7). A movable column (9) is telescopically connected to the bottom end of the fixed column (8). The bottom end of the movable column (9) is a conical structure and fits against the cable (4) wound on the take-up roller (5).

2. The hoisting and terminal limit device for the suspended platform as described in claim 1, characterized in that, The side plate (6) has a gear (10) rotatably connected to its inner side wall. A connecting block (11) is fixedly connected to the side wall of the side plate (6) near the gear (10). The connecting block (11) has an inclined structure and a telescopic rod (12) is rotatably connected to one side wall. A locking pin (13) is rotatably connected to the output end of the telescopic rod (12). The locking pin (13) is rotatably connected to the side wall of the side plate (6) through its end away from the gear (10). One end of the locking pin (13) is engaged between the teeth of the gear (10). The two ends of the take-up roller (5) extend into the side plate (6) and are detachably connected to one side wall of the gear (10).

3. The hoisting and terminal limit device for the suspended platform as described in claim 1, characterized in that, The connecting frame (7) is an L-shaped structure. The fixed column (8) is located in the middle of the two connecting frames (7). A spring (14) is fixedly connected to the top side wall inside the fixed column (8). One end of the movable column (9) is telescopically connected inside the fixed column (8) and fixedly connected to the bottom end of the spring (14). Extension plates (15) are fixedly connected to both sides of the movable column (9) inside the fixed column (8). The extension plates (15) are L-shaped structures. Support plates (16) are fixedly connected to both sides of the fixed column (8) and below the extension plates (15). A switch is embedded in the top side wall of the support plate (16), and the switch is electrically connected to the telescopic rod (12) through an electric wire.

4. The hoisting and terminal limit device for the suspended platform as described in claim 1, characterized in that, The control box (2) has an inner groove, and a follower plate (17) is rotatably connected to the middle side wall of the inner groove. Both ends of the follower plate (17) and the opposite side walls are fixedly connected to protrusions (18). The protrusions (18) are semi-circular structures and have grooves in the middle side walls. The follower plate (17) has a through hole in the middle. One end of the cable (4) passes through the through hole, passes through the bottom of the control box (2), and is connected to the pulley group on the basket (1).

5. The hoisting and terminal limit device for the suspended platform as described in claim 1, characterized in that, The inner wall of the control box (2) is fixedly connected to two storage blocks (19). The two storage blocks (19) are inclined relative to each other. The storage blocks (19) correspond to the protrusions (18), and the side walls of the storage blocks (19) and protrusions (18) are open. The middle of the inner wall of the storage blocks (19) is fixedly connected to an extrusion plate (20). The extrusion plate (20) corresponds to the groove on the protrusion (18), and the groove corresponds to the cable (4). The protrusion (18) is inserted into the storage block (19). A motor (3) is detachably connected to the middle of one side wall of the control box (2). The output end of the motor (3) extends into the control box (2) and is detachably connected to the center point of the follower plate (17).

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