Extra-large bearing type movable counterweight bracket pulley device
By designing an ultra-large load-bearing mobile counterweight bracket trolley device, the engagement of the front and rear drag chains with the sprockets drives the sliding of the mobile frame and counterweight blocks, solving the problem of unstable center of gravity when the window cleaning machine's boom extends and retracts, achieving stable adjustment of the equipment's center of gravity, and improving operational stability and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- PINGHU POINT HIGH RISE EQUIP
- Filing Date
- 2025-05-16
- Publication Date
- 2026-04-24
AI Technical Summary
In existing technologies, the center of gravity of window cleaning machines for high-rise buildings changes significantly when the boom extends or retracts. Fixed counterweights cannot meet the adjustment of the center of gravity of the entire machine, causing the machine to tilt forward or backward.
Design an ultra-large load-bearing mobile counterweight bracket trolley device. Through the meshing of the front and rear drag chains with the sprockets, the mobile frame and counterweight block are driven to slide in the extension and retraction direction of the window cleaning machine's boom to achieve center of gravity adjustment. The counterweight block is equipped with lifting lugs for easy transportation, and the mobile frame is equipped with upper rollers and side guide wheels to improve the smoothness of movement.
This technology enables stable adjustment of the machine's center of gravity during the extension and retraction of the window cleaning machine's boom, preventing it from tilting forward or backward and improving operational stability and safety.
Smart Images
Figure CN224155590U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of window cleaning machine technology, and in particular to an ultra-large load-bearing mobile counterweight bracket trolley device. Background Technology
[0002] Window cleaning machines are permanent specialized equipment used for cleaning and maintaining the exterior facades and skylights of high-rise buildings. Among related technologies, the most commonly used type of window cleaning machine for high-rise buildings is the horizontal track type.
[0003] In related technologies, when a window cleaning machine with a large telescopic range extends and retracts its boom, the center of gravity of the entire machine will change significantly. The fixed counterweight cannot meet the adjustment of the center of gravity of the entire machine, which may result in the machine tilting forward or backward. Utility Model Content
[0004] The purpose of this application is to address the aforementioned problems in the prior art by proposing an ultra-large load-bearing mobile counterweight trolley device.
[0005] This application can be achieved through the following technical solution: an ultra-large load-bearing mobile counterweight bracket trolley device, including a mobile frame, a counterweight block disposed on the mobile frame, a front drag chain disposed on the mobile frame and the telescopic end of the window cleaning machine arm, and a rear drag chain disposed on the mobile frame. Two front sprockets and two rear sprockets are rotatably mounted on the fixed end of the window cleaning machine arm. The front drag chain meshes with the two front sprockets, and the rear drag chain meshes with the two rear sprockets. The telescopic end of the window cleaning machine arm can drive the mobile frame and the counterweight block to slide through the front drag chain.
[0006] In the above technical solution, when the telescopic end of the window cleaning machine's boom extends, the telescopic end of the boom can drive the moving frame and counterweight to slide in the opposite direction of the boom's extension via the front drag chain; when the telescopic end of the boom retracts, the telescopic end of the boom can drive the moving frame and counterweight to slide in the opposite direction of the boom's retraction via the front drag chain, thereby achieving the adjustment of the overall center of gravity of the equipment.
[0007] Furthermore, the movable frame is rotatably mounted with an upper roller capable of contacting the top of the fixed end of the window cleaning machine's main arm, and the movable frame is also rotatably mounted with a side guide wheel capable of contacting the side wall of the fixed end of the window cleaning machine's main arm.
[0008] In the above technical solution, by setting up upper rollers and side guide rollers, the moving frame can move more smoothly.
[0009] Furthermore, the counterweight is provided with several lifting lugs.
[0010] In the above technical solution, the lifting lugs facilitate the lifting and transportation of the counterweight by the workers.
[0011] Furthermore, both the front and rear drag chains include chains and chain seats mounted on the chains, with the chain seats mounted on the telescopic end of the moving frame or the window cleaning machine boom.
[0012] In the above technical solution, when the telescopic end of the window cleaning machine's boom extends and retracts, the chain can drive the moving frame to move through the chain seat.
[0013] Furthermore, the chain seat includes an E-block that passes through the chain, a sealing block installed at one end of the E-block to prevent the E-block from detaching from the chain, and two connecting ears formed on the E-block. The connecting ears are installed on the telescopic end or movable frame of the window cleaning machine's boom.
[0014] In the above technical solution, when installing the chain seat, the E-block can be first inserted into the chain link, and then the sealing block can be installed at the open end of the E-block to prevent the E-block from detaching from the chain. Then the E-block can be installed on the telescopic end of the window cleaning machine boom or on the moving frame.
[0015] Furthermore, both ends of the movable frame along its length are formed with two limiting ends that limit the movement of the counterweight along the length of the window cleaning machine's boom.
[0016] In the above technical solution, when the counterweight is placed on the moving frame, both ends of the counterweight can abut against the two limiting ends one by one, and the limiting ends can limit the movement of the counterweight along the length of the window cleaning machine's boom.
[0017] Furthermore, the connecting lug is mounted on the telescopic end or movable frame of the window cleaning machine's boom by screws.
[0018] In the above technical solution, the connecting ear is installed on the telescopic end or moving frame of the window cleaning machine's main arm by screws. The movement of the telescopic end of the window cleaning machine's main arm can drive the moving frame to move through the chain seat.
[0019] Furthermore, the upper end of the screw is formed with anti-slip texture.
[0020] In the above technical solution, the anti-slip texture makes it easier for people to tighten the screws by hand.
[0021] In summary, this application has the following technical effects: when the telescopic end of the window cleaning machine's boom extends, the telescopic end of the boom can drive the moving frame and counterweight to slide in the opposite direction of the boom's extension via the front drag chain; when the telescopic end of the boom retracts, the telescopic end of the boom can drive the moving frame and counterweight to slide in the opposite direction of the boom's retraction via the front drag chain, thereby achieving the adjustment of the overall center of gravity of the equipment. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the overall structure of this application;
[0023] Figure 2 This is a schematic diagram of the chain seat structure in this application;
[0024] Figure 3 This is a schematic diagram showing the positions of the upper roller and the side guide roller in this application.
[0025] Explanation of reference numerals in the attached figures:
[0026] 1. Moving frame; 2. Counterweight; 3. Telescopic end; 4. Front drag chain; 5. Rear drag chain; 6. Front sprocket; 7. Rear sprocket; 8. Upper roller; 9. Side guide wheel; 10. Lifting lug; 11. Chain seat; 111. E-block; 112. Sealing block; 113. Connecting lug; 12. Limiting end; 13. Screw; 14. Fixed end; 15. Chain. Detailed Implementation
[0027] Reference Figure 1 One embodiment of this application provides an ultra-large load-bearing mobile counterweight trolley device, including four front sprockets 6 rotatably mounted on the fixed end 14 of the window cleaning machine arm, two of the front sprockets 6 being engaged with the same front drag chain 4, and four rear sprockets 7 rotatably mounted on the fixed end 14 of the window cleaning machine arm, two of the rear sprockets 7 being engaged with the same rear drag chain 5, and two of each of the front drag chains 4 and rear drag chains 5 being provided, with the two front drag chains 4 being close to the telescopic end 3 and the two rear drag chains 5 being away from the telescopic end 3.
[0028] Reference Figure 2 Both the front drag chain 4 and the rear drag chain 5 include a chain 15 and a chain seat 11 mounted on the chain 15. Two chain seats 11 are mounted on the chain 15 meshing with the front sprocket 6, and one chain seat 11 is mounted on the chain 15 meshing with the rear sprocket 7. The chain seat 11 includes an E-block 111 that passes through three links on the chain 15, a sealing block 112 mounted at one end of the E-block 111 to prevent the E-block 111 from detaching from the chain 15, and two connecting ears 113 formed on the E-block 111. The connecting ears 113 are mounted on the telescopic end 3 of the window cleaning machine arm or the moving frame 1. The sealing block 112 is mounted on the E-block 111 by fasteners such as screws.
[0029] Reference Figure 1 , 2Two chain seats 11 on the chain 15 meshing with the two front sprockets 6 are respectively installed on the telescopic end 3 of the window cleaning machine's main arm and on the moving frame 1. One chain seat 11 on the chain 15 meshing with the two rear sprockets 7 is installed on the moving frame 1. The connecting lug 113 is installed on the moving frame 1 or the telescopic end 3 of the window cleaning machine's main arm by screws 13. The upper end of the screw 13 is formed with anti-slip texture, which makes it easy for a person to tighten the screw 13 by hand. When the telescopic end 3 of the window cleaning machine's boom extends, the four chains 15 rotate clockwise, and the telescopic end 3 of the window cleaning machine's boom can drive the moving frame 1 and the counterweight 2 to slide in the opposite direction of the extension direction of the window cleaning machine's boom through the chains 15 and the chain seat 11; when the telescopic end 3 of the window cleaning machine's boom retracts, the four chains 15 rotate counterclockwise, and the telescopic end 3 of the window cleaning machine's boom can drive the moving frame 1 and the counterweight 2 to slide in the opposite direction of the retraction direction of the window cleaning machine's boom through the chains 15 and the chain seat 11, thereby realizing the adjustment of the center of gravity of the entire machine.
[0030] Reference Figure 3 The movable frame 1 is rotatably mounted with twelve upper rollers 8 that can contact the top of the fixed end 14 of the window cleaning machine's main arm. Three side guide wheels 9 are also rotatably mounted on the two opposite inner side walls of the movable frame 1, contacting the side walls of the fixed end 14 of the window cleaning machine's main arm, so that the side guide wheels 9 and upper rollers 8 can roll along the length of the window cleaning machine's main arm when the chain 15 is in cyclic transmission. The top of the counterweight 2 has four lifting lugs 10, which facilitate lifting and transporting the counterweight 2. Both the counterweight 2 and the movable frame 1 are gate-shaped. A limiting end 12 is formed at both ends of the movable frame 1 along the length of the window cleaning machine's main arm. The counterweight 2 can be positioned between the two limiting ends 12, which limit the movement of the counterweight 2 along the length of the window cleaning machine's main arm to prevent the counterweight 2 from detaching from the movable frame 1.
[0031] The working principle of this embodiment is as follows: When the telescopic end 3 of the window cleaning machine's main arm extends, the four chains 15 rotate clockwise, and the telescopic end 3 of the window cleaning machine's main arm can drive the moving frame 1 and the counterweight 2 to slide in the opposite direction of the extension direction of the window cleaning machine's main arm through the chains 15 and the chain seat 11; when the telescopic end 3 of the window cleaning machine's main arm retracts, the four chains 15 rotate counterclockwise, and the telescopic end 3 of the window cleaning machine's main arm can drive the moving frame 1 and the counterweight 2 to slide in the opposite direction of the retraction direction of the window cleaning machine's main arm through the chains 15 and the chain seat 11, thereby realizing the adjustment of the center of gravity of the entire machine.
[0032] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A large-capacity load-bearing mobile counterweight trolley device, characterized in that, The device includes a movable frame (1), a counterweight (2) mounted on the movable frame (1), a front drag chain (4) mounted on the movable frame (1) and the telescopic end (3) of the window cleaning machine arm, and a rear drag chain (5) mounted on the movable frame (1). Two front sprockets (6) and two rear sprockets (7) are rotatably mounted on the fixed end (14) of the window cleaning machine arm. The front drag chain (4) meshes with the two front sprockets (6), and the rear drag chain (5) meshes with the two rear sprockets (7). The telescopic end (3) of the window cleaning machine arm can drive the movable frame (1) and the counterweight (2) to slide through the front drag chain (4).
2. The ultra-large load-bearing mobile counterweight trolley device according to claim 1, characterized in that, The movable frame (1) is rotatably mounted with an upper roller (8) that can contact the top of the fixed end (14) of the window cleaning machine arm, and the movable frame (1) is also rotatably mounted with a side guide wheel (9) that can contact the side wall of the fixed end (14) of the window cleaning machine arm.
3. The ultra-large load-bearing mobile counterweight trolley device according to claim 1, characterized in that, The counterweight (2) is provided with several lugs (10).
4. The ultra-large load-bearing mobile counterweight trolley device according to claim 1, characterized in that, Both the front drag chain (4) and the rear drag chain (5) include a chain (15) and a chain seat (11) mounted on the chain (15). The chain seat (11) is mounted on the telescopic end (3) of the movable frame (1) or the window cleaning machine boom.
5. The ultra-large load-bearing mobile counterweight trolley device according to claim 4, characterized in that, The chain seat (11) includes an E-block (111) that passes through the chain (15), a sealing block (112) installed at one end of the E-block (111) to prevent the E-block (111) from detaching from the chain (15), and two connecting ears (113) formed on the E-block (111). The connecting ears (113) are installed on the telescopic end (3) of the window cleaning machine arm or the movable frame (1).
6. The ultra-large load-bearing mobile counterweight trolley device according to claim 1, characterized in that, The movable frame (1) has two limiting ends (12) formed at both ends in the length direction to limit the movement of the counterweight (2) along the length direction of the window cleaning machine arm.
7. The ultra-large load-bearing mobile counterweight trolley device according to claim 5, characterized in that, The connecting ear (113) is mounted on the telescopic end (3) of the window cleaning machine arm or the movable frame (1) by screws (13).
8. The ultra-large load-bearing mobile counterweight trolley device according to claim 7, characterized in that, The upper end of the screw (13) is formed with anti-slip texture.