Automatic rigid frame trolley

Through the design of the lifting frame and dust collection cylinder, combined with the air pump and water pump, the problem of dust diffusion on the trolley is solved, effective dust absorption and dust reduction effects are achieved, and the air quality of the construction environment is improved.

CN120759604APending Publication Date: 2025-10-10CHINA RAILWAY NO 3 GRP CO LTD +2
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Patent Information

Application Number
CN202511093077.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-06
Publication Date
2025-10-10

AI Technical Summary

Technical Problem

During construction, dust on the surface of materials on the trolley is easily spread when they are taken, affecting the air quality and easily inhaled by construction workers.

Method used

An automatic rigid-frame trolley was designed, which was equipped with a lifting frame, a dust collection cylinder and a dust reduction nozzle. The position and height of the dust collection cylinder were adjusted by the lifting frame. Combined with the air pump and water pump, effective dust absorption and dust reduction could be achieved.

Benefits of technology

Significantly reduce dust diffusion, improve the health of construction workers and air quality, and reduce the impact of dust on the air through a combination of dust suction and water spraying.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention belongs to the technical field of building construction equipment, and particularly relates to an automatic rigid frame trolley which comprises a trolley body, winding cloth is wound, the winding cloth pulls a sliding plate to move together, then the position of a dust collection barrel in the horizontal direction is adjusted, and then dust collection treatment can be conducted on different positions. Then the second lifting frame and all mechanisms on the second lifting frame move upwards together, so that the height of the dust collection barrel is adjusted, then the dust collection barrel sucks dust at different height positions conveniently, when the bottom of the second lifting frame is higher than an air blowing groove, the sealing effect of the second lifting frame on the air blowing groove is removed, at the moment, air is moved out of the air blowing groove, and dust is blown; when the dust collection device is used, the amount of the dust entering the air can be greatly reduced, the dust collection speed of the dust collection barrel can be increased, the amount of the dust diffused into the air can be greatly reduced, then the dust is not prone to being sucked by constructors, and the influence of the dust on the air can be reduced.
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Description

Technical Field

[0001] The invention belongs to the technical field of building construction equipment, in particular to an automatic rigid frame trolley. Background Art

[0002] In construction, trolleys are a commonly used piece of construction equipment. Serving as a mobile platform for concrete pouring, they provide precise positioning and support for formwork, ensuring the dimensional accuracy and strength of structures like tunnels and diversion tunnels. They utilize a hydraulic system for automated movement and demolding, reducing manual intervention and improving construction efficiency. A suspended crane precisely positions formwork, and side work baskets enable efficient installation and removal of crash barriers, achieving millimeter-level accuracy. Through its modular structure, intelligent control, and scenario-specific customization, trolleys play a key role in improving construction and operational efficiency, ensuring safety, and reducing labor costs.

[0003] When construction workers are working on a trolley, they will place some materials on the trolley to improve the convenience of taking materials. When dust adheres to the surface of the materials, when the materials are taken and the wind is strong, the dust will be brought up and spread into the air. The diffusion range is large, and it will be easier for construction workers to inhale it and affect the air quality.

[0004] To this end, the present invention provides an automatic rigid frame trolley. Summary of the Invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve the technical problem is as follows: the automatic rigid frame trolley of the present invention comprises a trolley body, the top of the trolley body is provided with a circular groove 1;

[0007] A pair of electric push rods are fixedly connected to the inner bottom wall of the circular groove, and the output ends of the pair of electric push rods are fixedly connected to the same lifting frame, and an air blowing groove is opened on the inner side wall of the lifting frame;

[0008] A circular groove 2 is provided on the top of the lifting frame 1, an air pump is provided on the inner bottom wall of the circular groove 2, and a lifting frame 2 is inserted into the circular groove 2;

[0009] An adjusting slot is provided on the top of the second lifting frame, a slide is movably inserted into the adjusting slot, a spring sheet is fixedly connected between the side of the slide and the inner side wall of the adjusting slot, and one end of the winding cloth is fixedly connected to the other side of the slide;

[0010] A motor is fixedly connected to the inner bottom wall of the adjusting groove, a connecting shaft is fixedly connected to the output end of the motor, and the other end of the winding cloth is fixedly connected to the connecting shaft;

[0011] The top of the slide is fixedly connected with a connecting plate, the top of the connecting plate is fixedly connected with a dust collection cylinder, the side of the dust collection cylinder is fixedly connected with a connecting frame, and the side of the connecting frame is fixedly connected with a plurality of suction heads.

[0012] Preferably, in the initial state, the tops of the lifting frame 1 and the lifting frame 2 are both flush with the top of the trolley body.

[0013] Preferably, the top end of the connecting shaft is fixedly connected to a limiting block, and the outer diameter of the limiting block is larger than the outer diameter of the connecting shaft.

[0014] Preferably, in the initial state, the bottom of the connecting plate is in contact with the top of the trolley body, and the dust collection cylinder is located above the trolley body.

[0015] Preferably, a pair of inner side walls of the adjustment groove are each provided with a sliding groove, and a pair of side surfaces of the slide plate are each fixedly connected with a plug-in block that is slidably connected to the sliding groove.

[0016] Preferably, the bottom of the connecting plate contacts the top of the lifting frame 2, and in the initial state, the spring piece is in the original length state.

[0017] Preferably, the bottom of the connecting plate is fixedly connected to an electric push rod 2, the telescopic end of the electric push rod 2 is fixedly connected to a support plate, the top of the lifting frame 1 is provided with a plug-in slot, and both the electric push rod 2 and the support plate are inserted into the plug-in slot.

[0018] Preferably, a plurality of connecting bottom grooves are provided at the bottom of the support plate, and balls are provided inside the connecting bottom grooves.

[0019] Preferably, a pair of dust reduction water tanks are fixedly connected to the top of the connecting plate, a dust reduction nozzle is fixedly connected to the side of the dust reduction water tank, a water pump, a controller and a water level detector are provided inside the dust reduction water tank, an alarm is fixedly connected to the side of the dust reduction water tank away from the dust reduction nozzle, the alarm and the water level detector are electrically connected to the controller through wires, and the pair of dust reduction nozzles are respectively located on both sides of the dust collection cylinder, and there is a gap between them and the dust collection cylinder.

[0020] The beneficial effects of the present invention are as follows:

[0021] 1. The automatic rigid frame trolley described in the present invention utilizes a lifting frame to block materials and tools on the trolley body, so that they are not easy to fall from the trolley body. When taking materials and dust in the materials flies into the air, the dust collection cylinder can be started to absorb the dust in the air, and then the motor is started to drive the connecting shaft to rotate at its output end to reel in the winding cloth, so that the winding cloth drives the slide plate to move toward the motor together. At the same time, the slide plate will drive the spring sheet to stretch it, thereby adjusting the position of the dust collection cylinder in the horizontal direction, so that dust collection can be performed at different positions. The air pump can be started to The gas pushes the lifting frame 2 and all the mechanisms thereon to move upward together, thereby adjusting the height of the dust collection cylinder, making it easier for the dust collection cylinder to absorb dust at different heights. When the bottom of the lifting frame 2 is higher than the blowing groove, the sealing effect of the lifting frame 2 on the blowing groove will be removed. At this time, the gas will be moved out of the blowing groove and blow the dust to move it toward the dust collection cylinder, thereby reducing the amount of dust entering the air and speeding up the dust collection speed of the dust collection cylinder. When the present invention is in use, it can greatly reduce the amount of dust diffused into the air, making it difficult for construction workers to inhale the dust and reducing the impact of dust on the air.

[0022] 2. The automatic rigid frame trolley described in the present invention can start the water pump while using the dust suction cylinder to absorb dust, and spray the water in the dust reduction water tank to the dust through the dust reduction nozzle, so as to reduce the dust in the air, further reduce the amount of dust diffused into the air, and improve the personal health of construction workers and the air quality. During the process of spraying water to reduce dust, when the amount of water in the dust reduction water tank is insufficient, the controller will start the alarm to send out sound and light signals to remind personnel to add water, so as to ensure the normal operation of water spraying and dust reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below with reference to the accompanying drawings.

[0024] Figure 1 is a perspective view of the present invention;

[0025] Figure 2 It is a schematic diagram of the lifting frame 1 moving upward in the present invention;

[0026] Figure 3 It is a partial schematic diagram of the lifting frame 2 in the present invention;

[0027] Figure 4 is a schematic diagram of a skateboard in the present invention;

[0028] Figure 5 It is a schematic diagram of the lifting frame 2 in the present invention;

[0029] Figure 6 This invention Figure 5 Enlarged view of point A in the middle;

[0030] Figure 7 It is a schematic diagram of the support plate in the present invention.

[0031] In the figure: 1. Trolley body; 2. Round groove one; 3. Electric push rod one; 4. Lifting frame one; 5. Round groove two; 6. Lifting frame two; 7. Adjusting groove; 8. Slide plate; 9. Spring sheet; 10. Winding cloth; 11. Motor; 12. Connecting shaft; 13. Connecting plate; 14. Dust collection cylinder; 15. Connecting frame; 16. Suction head; 17. Limit block; 18. Slide groove; 19. Plug-in block; 20. Electric push rod two; 21. Support plate; 22. Plug-in groove; 23. Ball bearing; 24. Dust suppression water tank; 25. Dust suppression nozzle; 26. Alarm; 27. Blowing groove. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0033] Example 1: Figure 1-6 As shown, an automatic rigid frame trolley according to an embodiment of the present invention comprises a trolley body 1, wherein a circular groove 2 is formed on the top of the trolley body 1;

[0034] A pair of electric push rods 3 are fixedly connected to the inner bottom wall of the circular groove 2, and the output ends of the pair of electric push rods 3 are fixedly connected to the same lifting frame 4, and an air blowing groove 27 is opened on the inner side wall of the lifting frame 4;

[0035] A circular groove 2 5 is provided on the top of the lifting frame 1 4 , an air pump is provided on the inner bottom wall of the circular groove 2 5 , and a lifting frame 2 6 is inserted into the inner portion of the circular groove 2 5 ;

[0036] An adjustment slot 7 is provided on the top of the lifting frame 6, and a slide 8 is movably inserted into the adjusting slot 7. A spring sheet 9 is fixedly connected between the side of the slide 8 and the inner side wall of the adjusting slot 7, and one end of a winding cloth 10 is fixedly connected to the other side of the slide 8.

[0037] A motor 11 is fixedly connected to the inner bottom wall of the adjustment groove 7, and a connecting shaft 12 is fixedly connected to the output end of the motor 11. The other end of the winding cloth 10 is fixedly connected to the connecting shaft 12.

[0038] The top of the slide plate 8 is fixedly connected to a connecting plate 13 , the top of the connecting plate 13 is fixedly connected to a dust collection cylinder 14 , the side of the dust collection cylinder 14 is fixedly connected to a connecting frame 15 , and the side of the connecting frame 15 is fixedly connected to a plurality of suction heads 16 .

[0039] In the prior art, when construction workers are working on a trolley, they place some materials on the trolley to improve the convenience of taking materials. When dust adheres to the surface of the materials, when the materials are taken and the wind is strong, the dust will be brought up and spread into the air. The spread range is large, and then it will be easily inhaled by the construction workers and affect the air quality.

[0040] When the present invention is in use, after placing the material on the top of the trolley body 1, the electric push rod 3 can be started so that its telescopic end pushes the lifting frame 4 upward (combined with Figure 2 As shown), the lifting frame 1 4 can be used to block the materials and tools on the trolley body 1 so that they are not easily dropped from the trolley body 1;

[0041] When taking materials and dust in the materials flies into the air, the dust collection cylinder 14 can be started to absorb the dust in the air;

[0042] Then start the motor 11, so that its output end drives the connecting shaft 12 to rotate, so as to reel in the reeling cloth 10, so that the reeling cloth 10 pulls the slide plate 8 to move toward the motor 11. At the same time, the slide plate 8 drives the spring sheet 9 to stretch it, thereby adjusting the horizontal position of the dust collection cylinder 14, so that dust collection can be carried out at different locations.

[0043] Then the air pump can be started to make the gas push the lifting frame 2 6 and all the mechanisms thereon to move upward, thereby adjusting the height of the dust collection cylinder 14, thereby facilitating the dust collection cylinder 14 to absorb dust at different heights;

[0044] When the bottom of the lifting frame 2 6 is higher than the blowing groove 27, the sealing effect of the lifting frame 2 6 on the blowing groove 27 will be removed. At this time, the air will be discharged from the blowing groove 27 and blow the dust toward the dust collection cylinder 14, thereby reducing the amount of dust entering the air and speeding up the dust collection speed of the dust collection cylinder 14.

[0045] In summary, when the present invention is used, it can significantly reduce the amount of dust diffused into the air, thereby making it difficult for construction workers to inhale the dust and reducing the impact of dust on the air.

[0046] like Figure 1 As shown, in the initial state, the tops of the lifting frame 1 4 and the lifting frame 2 6 are both flush with the top of the trolley body 1;

[0047] In the initial state, the upper end of the trolley body 1 remains flat, so that personnel can move materials to the top of the trolley body 1.

[0048] like Figure 6 As shown, the top end of the connecting shaft 12 is fixedly connected to a limiting block 17, and the outer diameter of the limiting block 17 is larger than the outer diameter of the connecting shaft 12;

[0049] During the process of winding the winding cloth 10 onto the connecting shaft 12 , the limiting block 17 can be used to limit the winding cloth 10 so that it is not easy to move out from the upper end of the connecting shaft 12 .

[0050] like Figure 1 As shown, in the initial state, the bottom of the connecting plate 13 is in contact with the top of the trolley body 1, and the dust collection cylinder 14 is located above the trolley body 1;

[0051] When the bottom of the connecting plate 13 abuts against the top of the trolley body 1 , the trolley body 1 can support the top of the connecting plate 13 and all the mechanisms thereon.

[0052] like Figure 3 As shown, a pair of inner side walls of the adjustment slot 7 are provided with a slide groove 18, and a pair of side surfaces of the slide plate 8 are fixedly connected with a plug-in block 19 that is slidably connected to the slide groove 18;

[0053] When the slide plate 8 moves, it will drive the plug-in block 19 to move in the slide groove 18. The plug-in block 19 can improve the stability of the slide plate 8 and all the mechanisms thereon when they move together.

[0054] like Figure 3 As shown, the bottom of the connecting plate 13 contacts the top of the lifting frame 2 6 , and in the initial state, the spring piece 9 is in the original length state.

[0055] like Figure 3 As shown, the bottom of the connecting plate 13 is fixedly connected to the electric push rod 20, the telescopic end of the electric push rod 20 is fixedly connected to the support plate 21, and the top of the lifting frame 4 is provided with a plug-in slot 22, and both the electric push rod 20 and the support plate 21 are inserted into the plug-in slot 22;

[0056] When in use, the second electric push rod 20 needs to be started so that its telescopic end pushes the support plate 21 to move toward the inner bottom wall of the insertion slot 22. The support plate 21 and the second electric push rod 20 can support the connecting plate 13 and all the mechanisms thereon.

[0057] like Figure 7 As shown, a plurality of connecting bottom grooves are provided at the bottom of the support plate 21, and balls 23 are provided inside the connecting bottom grooves;

[0058] When the support plate 21 moves in the insertion slot 22 , the balls 23 roll between the support plate 21 and the bottom wall of the insertion slot 22 . The balls 23 can reduce the friction force on the support plate 21 when moving in the insertion slot 22 .

[0059] Example 2: Figure 4As shown, comparative example 1, another embodiment of the present invention is: a pair of dust reduction water tanks 24 are fixedly connected to the top of the connecting plate 13, and a dust reduction nozzle 25 is fixedly connected to the side of the dust reduction water tank 24. A water pump, a controller and a water level detector are provided inside the dust reduction water tank 24. An alarm 26 is fixedly connected to the side of the dust reduction water tank 24 away from the dust reduction nozzle 25. The alarm 26 and the water level detector are electrically connected to the controller through wires. The pair of dust reduction nozzles 25 are respectively located on both sides of the dust collection cylinder 14, and there is a gap with the dust collection cylinder 14.

[0060] When the present invention is in use, while the dust is being sucked up by the dust collecting cylinder 14, the water pump can be started to spray the water in the dust reduction water tank 24 toward the dust through the dust reduction nozzle 25, thereby performing dust reduction treatment on the dust in the air, further reducing the amount of dust diffused into the air, and improving the personal health of construction workers and the air quality. During the process of spraying water to reduce dust, when the amount of water in the dust reduction water tank 24 is insufficient, the controller will start the alarm 26 to emit an audible and visual signal to remind personnel to replenish water, thereby ensuring the normal operation of the water spraying and dust reduction.

[0061] The above-mentioned front, back, left, right, up and down are all based on the Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0062] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention.

[0063] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic rigid frame trolley, comprising a trolley body (1), characterized in that: A circular groove (2) is provided on the top of the trolley body (1); A pair of electric push rods (3) are fixedly connected to the inner bottom wall of the circular groove (2), and a same lifting frame (4) is fixedly connected to the output ends of the pair of electric push rods (3), and an air blowing groove (27) is provided on the inner side wall of the lifting frame (4); A circular groove 2 (5) is provided on the top of the lifting frame 1 (4), an air pump is provided on the inner bottom wall of the circular groove 2 (5), and a lifting frame 2 (6) is inserted into the interior of the circular groove 2 (5); An adjusting slot (7) is provided on the top of the lifting frame (6), a slide plate (8) is movably inserted into the adjusting slot (7), a spring sheet (9) is fixedly connected between the side of the slide plate (8) and the inner wall of the adjusting slot (7), and one end of a reeling cloth (10) is fixedly connected to the other side of the slide plate (8); A motor (11) is fixedly connected to the inner bottom wall of the adjustment groove (7), a connecting shaft (12) is fixedly connected to the output end of the motor (11), and the other end of the winding cloth (10) is fixedly connected to the connecting shaft (12); The top of the slide plate (8) is fixedly connected to a connecting plate (13), the top of the connecting plate (13) is fixedly connected to a dust collection cylinder (14), the side of the dust collection cylinder (14) is fixedly connected to a connecting frame (15), and the side of the connecting frame (15) is fixedly connected to a plurality of suction heads (16).

2. The automatic rigid frame trolley according to claim 1, characterized in that: In the initial state, the tops of both the lifting frame 1 (4) and the lifting frame 2 (6) are flush with the top of the trolley body (1).

3. The automatic rigid frame trolley according to claim 1, characterized in that: The top end of the connecting shaft (12) is fixedly connected to a limiting block (17), and the outer diameter of the limiting block (17) is larger than the outer diameter of the connecting shaft (12).

4. The automatic rigid frame trolley according to claim 1, characterized in that: In the initial state, the bottom of the connecting plate (13) contacts the top of the trolley body (1), and the dust collecting cylinder (14) is located above the trolley body (1).

5. The automatic rigid frame trolley according to claim 1, characterized in that: A pair of inner side walls of the adjustment groove (7) are provided with a sliding groove (18), and a pair of side surfaces of the slide plate (8) are fixedly connected with a plug-in block (19) which is slidably connected to the sliding groove (18).

6. The automatic rigid frame trolley according to claim 1, characterized in that: The bottom of the connecting plate (13) contacts the top of the second lifting frame (6), and in the initial state, the spring sheet (9) is in the original length state.

7. The automatic rigid frame trolley according to claim 1, characterized in that: The bottom of the connecting plate (13) is fixedly connected to the second electric push rod (20), the telescopic end of the second electric push rod (20) is fixedly connected to the support plate (21), the top of the lifting frame (4) is provided with a plug-in slot (22), and both the second electric push rod (20) and the support plate (21) are inserted into the inside of the plug-in slot (22).

8. The automatic rigid frame trolley according to claim 7, characterized in that: The bottom of the support plate (21) is provided with a plurality of connecting bottom grooves, and balls (23) are arranged inside the connecting bottom grooves.

9. The automatic rigid frame trolley according to claim 1, characterized in that: A pair of dust reduction water tanks (24) are fixedly connected to the top of the connecting plate (13), a dust reduction nozzle (25) is fixedly connected to the side of the dust reduction water tank (24), a water pump, a controller and a water level detector are arranged inside the dust reduction water tank (24), an alarm (26) is fixedly connected to the side of the dust reduction water tank (24) away from the dust reduction nozzle (25), and the alarm (26) and the water level detector are both electrically connected to the controller through a wire, and the pair of dust reduction nozzles (25) are respectively located on both sides of the dust collection cylinder (14), and there is a gap between them and the dust collection cylinder (14).