Telescopic suspended working platform for window cleaning machine
By designing a retractable gondola combination structure, the problems of traditional gondola expansion and safe operation in special places such as special buildings and hydropower stations are solved, and the retractability, locking and leveling of gondolas in any operating position is achieved, improving operational safety.
Patent Information
- Application Number
- CN202420992745.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-09
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-05-09
AI Technical Summary
It is difficult for traditional gondolas to achieve space expansion and safe operation in special places such as special buildings and hydropower stations, especially in locations such as concave, layered and cantilevered structures.
A retractable gondola for window cleaning machine is designed, adopting a combined structure of the main basket and the secondary basket. The retracting mechanism realizes the telescopic and locking of the gondola, and is equipped with a leveling mechanism and anti-collision protection device to ensure the stability and safety of the gondola in different operating positions.
The expansion, locking and leveling of the gondola at any operating position has been achieved, the working space of the gondola has been expanded, the operation safety has been improved, and the cantilever structure and concave facade operations in special places such as special buildings and hydropower stations are effectively completed.
Smart Images
Figure CN222622844U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of gondolas, in particular to a retractable gondola for a window cleaning machine. Background Art
[0002] In recent years, with the continuous development of architectural design and construction level, various types of special-shaped building construction have been increasing. As a permanent special equipment for cleaning and maintenance of high-rise building exterior facades and lighting roofs, the demand for window cleaning machines is growing. As one of the main components of the window cleaning machine, the gondola is suspended in the air by steel wire ropes, surrounded by enclosures or mesh panels, and is used to carry operators, tools and materials. It can reach different working positions through the hoisting mechanism and the movement and rotation of the trolley.
[0003] The external dimensions of traditional gondolas are fixed. For some special-shaped building facades, such as concave building facades, layered eaves, building exterior wall decorative strips and other special building facades, as well as areas such as hydropower station gate shafts and air vents that are inconvenient to maintain and have high safety risks, it is difficult for the window cleaning machine to cover all working positions only with the cooperation of a trolley when working. These difficult-to-access special locations have strict restrictions on the passing dimensions of the gondola, but it is necessary to expand the space on both sides of the gondola after reaching the working position so that the operator can approach the working facade.
[0004] In order to solve the problems of space expansion and work safety of traditional gondolas, it is necessary to develop a retractable gondola for window cleaning machines, so that the operator can operate directly in the gondola, and the gondola can be retracted, locked and leveled at any working position, which greatly improves the working safety of the gondola. Utility Model Content
[0005] The utility model aims to provide a retractable gondola for a window cleaning machine, which solves the problems of space expansion and work safety of traditional gondolas.
[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0007] A retractable gondola for a window cleaning machine comprises a main basket, an auxiliary basket, a lifting frame, a wire rope pulley block, a retractable mechanism, a leveling mechanism, an anti-collision protection device and an electric control system, and both sides of the main basket have no side panels;
[0008] Two lifting frames are installed outside the main basket, and a set of wire rope pulley blocks are installed on the opposite sides of the two lifting frames. A leveling mechanism is installed on the side of the main basket. The ends of the two wire ropes pass through the inner cavity of one lifting frame respectively, pass around the wire rope pulley block and the leveling mechanism in turn, and are fixedly connected to the leveling mechanism.
[0009] An auxiliary basket is telescopically mounted at both ends of the main basket through a telescopic mechanism, an anti-collision protection device is mounted on one side of the auxiliary basket, and the other side has no side plate;
[0010] An electric control system is installed inside the main basket, and the electric control system is electrically connected to the leveling mechanism and the telescopic mechanism.
[0011] Preferably, the lifting frame includes an L-shaped beam and a transfer rod, both of which are provided with an inner cavity, a through hole is opened on the side of the L-shaped beam, the L-shaped beam is fixedly installed on the outside of the main basket by fasteners, and the transfer rod is detachably installed on the top of the L-shaped beam.
[0012] Preferably, the wire rope pulley block includes a guide wheel and a balance wheel, the guide wheel is installed at the outlet hole, and a balance wheel is installed below the guide wheel and on the L-shaped suspension beam.
[0013] Preferably, the leveling mechanism comprises a translation assembly and an adjustment pulley assembly, the translation assembly is mounted on the side of the main basket, and the adjustment pulley assembly is hinged to the translation end of the translation assembly.
[0014] Preferably, the telescopic mechanism includes a gear, a rack, a reduction gear box, a worm gear reducer, a handwheel handle and a bearing; the rack is mounted on the top of the main basket side through fasteners; the reduction gear box is mounted on the top of the auxiliary basket side through fasteners; a worm gear reducer is mounted in the reduction gear box through fasteners; a handwheel handle is mounted at the input end of the worm gear reducer; a gear is mounted at the output end of the worm gear reducer; and the end of the output end is rotatably mounted on the reduction gear box through a bearing.
[0015] Preferably, slide grooves are provided on both sides above the bottom surface of the main basket or on the inside of the side surfaces, and protrusions are provided on both sides below the bottom surface of the auxiliary basket or on the outside of the side surfaces, and the protrusions cooperate with the slide grooves.
[0016] Preferably, the auxiliary basket is built into one end of the main basket, the protrusion is installed in the slide groove and can slide in the slide groove, and the gear is meshed with the rack.
[0017] Preferably, casters are installed at the bottom of the L-shaped hanging beam, and a lower limit rod is connected between the bottoms of the two L-shaped hanging beams.
[0018] Preferably, the anti-collision protection device includes a lower limit detection device, an ultrasonic rangefinder and an anti-collision wheel, the anti-collision wheel is installed on the side of the main basket, the ultrasonic rangefinder and the lower limit detection device are both installed below the bottom surface of the main basket and are electrically connected to the electronic control system, and the lower limit detection device includes a lower limit rod.
[0019] In the utility model, the auxiliary basket is sleeved on both sides of the main basket, and the telescopic mechanism can extend and retract the auxiliary basket from the main basket through the gear rack drive. The operator can extend and retract the gondola at any working position by operating in the gondola, thereby expanding the working space of the gondola, so that the gondola can pass through a narrow space to reach the designated working position, or complete special building facade operations such as cantilever structures and concave facades.
[0020] The telescopic mechanism can extend and retract the auxiliary basket from the main basket through the gear rack meshing transmission, thereby expanding the working space of the crane. The telescopic mechanism adopts a self-locking worm gear reducer, so that the auxiliary basket can be braked and locked smoothly after reaching the position.
[0021] After the gondola is extended or retracted, the uneven load distribution may cause the gondola to tilt or one side of the lifting wire rope to become loose. The leveling mechanism can automatically level the gondola and tension the lifting wire ropes on both sides.
[0022] The anti-collision protection device can greatly improve the working safety of the gondola. In order to prevent the gondola from colliding with obstacles in the blind spot of the bottom field of view, causing dangers such as the gondola capsizing, an ultrasonic rangefinder is installed at the bottom of the gondola. When the distance between the gondola and the obstacle is less than the system setting value, the gondola will slow down in advance to prevent a collision. At the same time, a lower limit detection device is installed at the bottom of the gondola. If an obstacle is encountered, the lower limit rod will contact it before the gondola, realizing limit braking to prevent the gondola from touching the bottom. In addition, when the gondola is working, an anti-collision wheel is installed on the side of the building, which can play a buffering and protective role when the gondola is close to the exterior wall facade and during operation, reducing the risk of damaging the building facade. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 This is a schematic diagram of the overall structure of the utility model when the auxiliary basket is in a retracted state;
[0024] Figure 2 This is a schematic diagram of the overall structure of the auxiliary basket of the utility model when it is in an expanded state;
[0025] Figure 3 This is a schematic diagram of the telescopic mechanism structure of the utility model;
[0026] In the figure: 1. main basket; 2. auxiliary basket; 3. lifting frame; 4. wire rope pulley block; 5. telescopic mechanism; 6. leveling mechanism; 7. anti-collision protection device; 8. electronic control system; 9. wire rope; 51. gear; 30. L-shaped hanging beam; 31. adapter rod; 40. guide wheel; 41. balance wheel; 52. rack; 53. reducer box; 54. worm gear reducer; 55. handwheel handle; 56. bearing; 60. translation assembly; 61. adjustment pulley assembly; 70. lower limit detection device; 73. anti-collision wheel. DETAILED DESCRIPTION
[0027] The utility model is further described below in conjunction with the accompanying drawings:
[0028] like Figure 1 , Figure 2 and Figure 3 The telescopic gondola for a window cleaning machine shown in the figure comprises a main basket 1, an auxiliary basket 2, a lifting frame 3, a wire rope pulley block 4, a telescopic mechanism 5, a leveling mechanism 6, an anti-collision protection device 7 and an electric control system 8, and there are no side panels on both sides of the main basket 1.
[0029] Two lifting frames 3 are installed outside the main basket 1. The lifting frames 3 include an L-shaped hanging beam 30 and a transfer rod 31. Both the L-shaped hanging beam 30 and the transfer rod 31 are provided with an inner cavity. A through hole is opened on the side of the L-shaped hanging beam 30. The L-shaped hanging beam 30 is fixedly installed on the outside of the main basket 1 by fasteners. The transfer rod 31 is detachably installed on the top of the L-shaped hanging beam 30. Casters are installed at the bottom of the L-shaped hanging beam 30, and a lower limit rod is connected between the bottoms of the two L-shaped hanging beams 30.
[0030] A set of wire rope pulley blocks 4 are installed on opposite sides of the two lifting frames 3. The wire rope pulley blocks 4 include a guide wheel 40 and a balance wheel 41. The guide wheel 40 is installed at the through hole, and the balance wheel 41 is installed below the guide wheel 40 and on the L-shaped hanging beam 30.
[0031] A leveling mechanism 6 is installed on the side of the main basket 1. The leveling mechanism 6 includes a translation assembly 60 and an adjustment pulley assembly 61. The translation assembly 60 is installed on the side of the main basket 1, and the adjustment pulley assembly 61 is hinged at the translation end of the translation assembly 60. The adjustment pulley block includes a pulley box and two pulleys, and the two pulleys are installed at both ends of the pulley box. In one embodiment, the translation assembly 60 is an electric push rod and a guide rail. The guide rail is fixedly installed on the side of the main basket 1 by bolts, and the electric push rod is transversely installed on the side of the main basket 1. Specifically, the bottom end of the electric push rod is fixedly installed on the side of the main basket 1 by bolts, and the pulley box is installed on the top of the electric push rod through a pin shaft. When the gondola tilts due to uneven load distribution or one side of the lifting wire rope is loose, the pulley block is adjusted to move to the side where the wire rope is tensioned under the action of the electric push rod until the gondola reaches a balanced state again.
[0032] The ends of the two steel wire ropes 9 respectively pass through the inner cavity of a lifting frame 3, pass around the guide wheel 40, the pulley of the adjustment pulley block and the balance wheel 41 in sequence, and are finally fixedly connected to the pulley box of the adjustment pulley block.
[0033] A secondary basket 2 is telescopically mounted at both ends of the main basket 1 through a telescopic mechanism 5, and the telescopic mechanism 5 can also lock the secondary basket 2 in situ. An electric control system 8 is installed inside the main basket 1 to facilitate the operator to operate the gondola in the gondola. Slide grooves are provided on both sides or inside the sides above the bottom of the main basket 1, and protrusions are provided on both sides or outside the sides below the bottom of the secondary basket 2, and the protrusions match the slide grooves. The secondary basket 2 is built into one end of the main basket 1, and the protrusion is installed in the slide groove and can slide in the slide groove.
[0034] The electric control system 8 is electrically connected to the leveling mechanism 6 and the telescopic mechanism 5. The leveling mechanism 6 is used to solve the problem of the crane tilting and the loosening of the lifting wire rope caused by uneven load distribution. Specifically, when the crane is overloaded and the wire rope on one side is loose, the wire rope is re-tensioned through the leveling mechanism 6, and the crane recovers to a balanced state; the telescopic mechanism 5 is used to expand the working space of the crane so that it can reach the designated working position through a narrow space, or complete special building facade operations such as cantilever structures and concave facades. Specifically, the auxiliary basket 2 is extended out of the main basket 1 under the drive of the telescopic mechanism 5 to expand the working space of the crane in the length direction, and cooperates with the rotation of the window cleaning machine arm head to enable the auxiliary basket 2 to pass over the cantilever structure to reach the concave facade for window cleaning machine operations; the auxiliary basket 2 is retracted into the main basket 1 under the drive of the telescopic mechanism 5, and the crane maintains a minimum volume state so that it can reach the designated working position through a narrow space.
[0035] The telescopic mechanism 5 includes a gear 51, a rack 52, a reduction box 53, a worm gear reducer 54, a handwheel handle 55 and a bearing 56. The rack 52 is installed on the top of the side of the main basket 1 by bolts, and the reduction box 53 is installed on the top of the side of the auxiliary basket 2 by bolts. The worm gear reducer 54 is installed in the reduction box 53 by bolts, and the handwheel handle 55 is installed at the input end of the worm gear reducer 54. The gear 51 is installed at the output end of the worm gear reducer 54, and the end of the output end is rotatably installed on the reduction box 53 through a bearing 56. The operator stands in the gondola and rotates the handwheel handle 55, and the worm gear reducer 55 drives the gear 51 to rotate. The gear 51 and the rack 52 are meshed and driven to drive the auxiliary baskets 2 on both sides to extend smoothly to the required position; the self-locking worm gear reducer 55 is adopted, so that the auxiliary basket 2 can be braked and locked smoothly after reaching the position, which is easy to operate and greatly increases the safety of the operator.
[0036] An anti-collision protection device 7 is installed on one side of the auxiliary basket 2 by bolts, and there is no side plate on the other side. The anti-collision protection device 7 includes a lower limit detection device 70, an ultrasonic rangefinder and an anti-collision wheel 73. The anti-collision wheel 73 is installed on the side of the main basket 1 to prevent the gondola from colliding with obstacles in the bottom visual blind area, causing the gondola to overturn or damage the facade of the building. The ultrasonic rangefinder is used to detect the distance between the gondola and the obstacle. When the distance between the gondola and the obstacle is less than the system setting value during the descent of the gondola, the gondola will slow down in advance to prevent a collision. The lower limit detection device 70 includes a lower limit rod. The function of the lower limit detection device 70 is that if the gondola encounters an obstacle during the lifting process, the lower limit rod will contact it before the gondola, realize limit braking, and prevent the gondola from touching the bottom. The lower limit detection device 70 and the ultrasonic rangefinder are both installed below the bottom surface of the main basket 1 and are electrically connected to the electronic control system 8.
[0037] The above embodiments are only some descriptions of the concept and implementation of the utility model, and are not intended to limit the concept and implementation of the utility model. Under the concept of the utility model, technical solutions that have not been substantially changed are still within the scope of protection.
Claims
1. A retractable gondola for a window cleaning machine, characterized in that: It comprises a main basket (1), an auxiliary basket (2), a lifting frame (3), a wire rope pulley block (4), a telescopic mechanism (5), a leveling mechanism (6), an anti-collision protection device (7) and an electric control system (8), wherein both sides of the main basket (1) have no side panels; Two lifting frames (3) are installed outside the main basket (1), and a set of wire rope pulley blocks (4) are installed on opposite sides of the two lifting frames (3). A leveling mechanism (6) is installed on the side of the main basket (1), and the ends of two steel wire ropes (9) respectively pass through the inner cavity of one lifting frame (3), pass around the wire rope pulley block (4) and the leveling mechanism (6) in turn, and are fixedly connected to the leveling mechanism (6); An auxiliary basket (2) is telescopically mounted on both ends of the main basket (1) via a telescopic mechanism (5); an anti-collision protection device (7) is mounted on one side of the auxiliary basket (2), and the other side has no side panel; An electric control system (8) is installed inside the main basket (1), and the electric control system (8) is electrically connected to the leveling mechanism (6) and the telescopic mechanism (5).
2. The retractable gondola for a window cleaning machine according to claim 1, characterized in that: The lifting frame (3) comprises an L-shaped hanging beam (30) and a transfer rod (31), the L-shaped hanging beam (30) and the transfer rod (31) are both provided with an inner cavity, a through hole is provided on the side of the L-shaped hanging beam (30), the L-shaped hanging beam (30) is fixedly mounted on the outside of the main basket (1) by means of a fastener, and the transfer rod (31) is detachably mounted on the top end of the L-shaped hanging beam (30).
3. The retractable gondola for a window cleaning machine according to claim 2, characterized in that: The wire rope pulley block (4) comprises a guide wheel (40) and a balance wheel (41), wherein the guide wheel (40) is installed at the through hole, and the balance wheel (41) is installed below the guide wheel (40) and on the L-shaped suspension beam (30).
4. The retractable gondola for a window cleaning machine according to claim 1, characterized in that: The leveling mechanism (6) comprises a translation assembly (60) and an adjustment pulley assembly (61); the translation assembly (60) is mounted on a side surface of the main basket (1); and the adjustment pulley assembly (61) is hinged to a translation end of the translation assembly (60).
5. The retractable gondola for a window cleaning machine according to claim 1, characterized in that: The telescopic mechanism (5) comprises a gear (51), a rack (52), a reduction gear box (53), a worm gear reducer (54), a handwheel handle (55) and a bearing (56); the rack (52) is mounted on the top of the side of the main basket (1) via a fastener; the reduction gear box (53) is mounted on the top of the side of the auxiliary basket (2) via a fastener; the worm gear reducer (54) is mounted in the reduction gear box (53) via a fastener; the handwheel handle (55) is mounted at the input end of the worm gear reducer (54); the gear (51) is mounted at the output end of the worm gear reducer (54); and the end of the output end is rotatably mounted on the reduction gear box (53) via a bearing (56).
6. The retractable gondola for a window cleaning machine according to claim 5, characterized in that: Slide grooves are provided on both sides above the bottom surface of the main basket (1) or on the inside of the side surfaces, and protrusions are provided on both sides below the bottom surface of the auxiliary basket (2) or on the outside of the side surfaces, the protrusions matching the slide grooves.
7. The retractable gondola for a window cleaning machine according to claim 6, characterized in that: The auxiliary basket (2) is built into one end of the main basket (1), the protrusion is installed in the slide groove and can slide in the slide groove, and the gear (51) is meshed with the rack (52).
8. The retractable gondola for a window cleaning machine according to claim 2, characterized in that: A castor is installed at the bottom of the L-shaped hanging beam (30), and a lower limit rod is connected between the bottoms of the two L-shaped hanging beams (30).
9. The retractable gondola for a window cleaning machine according to claim 8, characterized in that: The anti-collision protection device (7) comprises a lower limit detection device (70), an ultrasonic rangefinder and an anti-collision wheel (73); the anti-collision wheel (73) is mounted on a side of the main basket (1); the ultrasonic rangefinder and the lower limit detection device (70) are both mounted below the bottom surface of the main basket (1) and are electrically connected to the electric control system (8); and the lower limit detection device (70) comprises a lower limit rod.