A mobile lifting platform for wall plastering

Abstract

This invention provides a mobile lifting platform for wall painting, comprising a support frame, an operating platform, and a main hydraulic push rod. Symmetrical guide rails are provided on the inner sides of the columns on both sides of the support frame, and a support beam is fitted inside each pair of guide rails. The top telescopic end of the main hydraulic push rod is fixedly installed to the corresponding support beam. A load-bearing plate is fixed or connected between the two support beams. The operating platform is located at the rear of the support frame. The first ends of the steel wire ropes on both sides are fixedly connected to the load-bearing plate, and the second ends are fixedly connected to the operating platform. This invention has a simple structure and is easy to use. It can lift bricks stacked on the load-bearing plate to behind the operator, reducing labor intensity and effectively improving construction efficiency. Furthermore, the device is easy to move and has a lifting function, enabling the operating platform to be raised and lowered, facilitating construction workers to stand and work on walls of different heights. It can meet the needs of wall painting at various heights and is highly practical.

Description

Technical Field

[0001] This invention belongs to the field of building equipment technology, and specifically relates to a mobile lifting platform for wall painting. Background Technology

[0002] During building construction, the construction and plastering of infill walls require manual scaffolding erection, and workers must move to another infill wall construction site after completion. However, with the increasing height of infill wall construction and plastering, especially in factories and basements, the work is not only high but also extensive. If conventional scaffolding or mobile ground-mounted scaffolding is used, workers' positions must increase with the height of the infill wall during single-sided infill wall construction. The manually erected operating platforms must be constantly adjusted as the wall height increases, requiring multiple disassemblies and reconstructions, which is time-consuming, affects construction efficiency, and poses safety hazards.

[0003] The prior art, disclosed in patent CN212836584U, describes a lifting platform for interior decoration, including a work platform for construction workers to stand on, a loading platform on one side of the work platform, and lifting columns at the lower ends of both the work platform and the loading platform. The lifting columns have hydraulic push rods, and a motor is connected to the lower end of the lifting columns. Both the lifting columns and the motor are fixedly connected to the base. This solution, unlike many existing lifting platforms that use fixed or movable base supports and lifting supports, relies on hydraulic push rods to drive the lifting supports upwards. However, this type of lifting support is not a fixed, integrated frame with the base support during lifting or lowering, resulting in significant swaying of the top support and poor safety. Furthermore, this type of platform requires a wider or heavier support structure at the bottom. Another type of lifting platform, disclosed in CN106144979A, includes an outer frame, an inner frame, a working platform, a wire rope pulley system, and a hydraulic cylinder. The inner frame is vertically movable within the outer frame. The working platform is installed on top of the inner frame, and the wire rope pulley system and hydraulic cylinder are located at the bottom of the outer frame. Multiple frames are sequentially nested, and multiple wire ropes synchronously drive the multiple frames to extend upward or retract downward through multiple guide wheels. In existing lifting platforms of this type, the operator must be located in the central area of ​​the entire support frame, which greatly restricts their range of movement and freedom of construction.

[0004] Therefore, the key to solving the above-mentioned technical problems lies in developing a mobile lifting platform device with high practicality, safety and reliability to meet the construction height requirements of the infill wall. Summary of the Invention

[0005] To overcome the shortcomings of the prior art, the present invention provides a mobile lifting platform device for bricklaying. This device allows bricks to be placed centrally on the platform and lifted to any height using hydraulic rods. Simultaneously, it raises the operating platform where workers are stationed to a designated height, avoiding the need for the operating platform to be constantly adjusted as the wall height increases. This improves construction efficiency, eliminates safety hazards, and effectively solves the problems mentioned above.

[0006] The solution adopted by this invention to solve its technical problem is: a mobile lifting platform for wall painting, comprising a support frame, an operating platform, and a main hydraulic push rod. The support frame includes two pairs of columns on both sides, with symmetrical guide rails arranged on the inner side of each pair of columns. A support beam is fitted inside each pair of guide rails. A main hydraulic push rod is installed at the bottom of each side of the support frame. The top telescopic end of each main hydraulic push rod is fixedly installed to the corresponding support beam, so that the main hydraulic push rod can drive the corresponding support beam to move up and down during the lifting movement. A load-bearing plate is fixed or connected between the two support beams. An operating platform is arranged on the rear side of the support frame. Two pulley wire ropes located on both sides of the support frame are respectively wound around the upper pulley and lower pulley on the corresponding side. The first end of each pulley wire rope is fixedly connected to the load-bearing plate, and the tail end of each pulley wire rope is fixedly connected to the operating platform.

[0007] Based on the aforementioned structure and coordination, when the main hydraulic push rods on both sides extend, they drive the supporting beams on both sides to move upward along the corresponding guide rails, which in turn drives the load-bearing plate upward via the traction steel wire ropes on both sides. During the upward movement of the load-bearing plate, the head end of the pulley steel wire rope is pulled upward, causing the tail end of the pulley steel wire rope to also move upward, thus moving the operating platform upward as well. Therefore, when the main hydraulic push rods are working, they can drive the load-bearing plate and the operating platform to rise or fall simultaneously. The load-bearing plate is used to support building materials, equipment, and tools, while the operating platform is used to support construction personnel.

[0008] A vertical track is provided on the rear side wall of the support frame, and corresponding track wheels are installed on the inner side of the operating platform. Each track wheel is matched and fitted into the corresponding track so that the operating platform moves in close contact with the support frame when it is raised and lowered, thus ensuring the stability of its raising and lowering movement.

[0009] The lower pulley is fixed to the bottom of the support frame, or an auxiliary lifting mechanism is installed on the front side of the support frame to drive the lower pulley to move up and down.

[0010] A guide component is installed on the outside of the column to maintain the stability of the auxiliary lifting mechanism and improve the stability of the auxiliary lifting mechanism.

[0011] The support frame is designed as a telescopic assembly, allowing the bottom and top supports to be assembled and then unfolded or locked by a drive mechanism.

[0012] A walking mechanism and a locking mechanism are installed at the bottom of the support frame.

[0013] The support frame includes two pairs of columns on both sides. The top of each pair of columns on each side is fixed together by a top connecting longitudinal beam, and the bottom is fixed together by a channel steel bottom support. The columns or corresponding connecting parts on both sides are fixed together as a whole by a crossbeam.

[0014] Guide mechanisms are installed on the inner side of the weighing plate and each column of the support frame.

[0015] The beneficial effects of the present invention are as follows: The lifting platform device of the present invention has a simple structure and is easy to use. It can lift the bricks stacked on the load-bearing plate to the back of the operator, avoiding the process of construction workers carrying bricks back and forth, reducing the labor intensity of construction, and effectively improving construction efficiency. At the same time, the device is easy to move and has a lifting function, which can drive the operating platform to rise and fall, making it convenient for construction workers to stand and carry out construction on walls of different heights. It can meet the needs of masonry and plastering of walls of different heights and has strong practicality.

[0016] This invention ensures the structural stability and safety of the main frame while preventing the main support frame from extending or contracting during lifting. Positioning the load-bearing plate, the main load-bearing component, inside the support frame and driving its lifting and lowering via a hydraulic cylinder ensures the stability of the main structure's center. Arranging the construction operating platform on the side of the main support frame allows for a larger platform span and greater freedom of movement for construction personnel. Attached Figure Description

[0017] Figure 1 This is one of the three-dimensional structural diagrams of the lifting platform of the present invention; Figure 2 This is the second three-dimensional structural diagram of the lifting platform of the present invention; Figure 3 This is a structural diagram of the operating platform; Figure 4 This is a structural diagram of the auxiliary lifting mechanism; Figure 5 This is a diagram showing the relationship between the operating platform and the column track; Figure 6 yes Figure 5 Assembly diagram of the inner support structure of the middle track.

[0018] The following are the labeling elements in the diagram: 1. Support frame; 3. Load-bearing plate; 4. Top connecting longitudinal beam; 5. Upper pulley; 6. Pulley wire rope; 7. Traction wire rope; 8. Pad plate; 9. Bottom connecting crossbeam; 10. Guide rail; 11. Column; 12. Support beam; 13. Main hydraulic push rod; 14. Channel steel bottom support; 15. Guardrail; 16. Operating platform; 17. Support; 18. Auxiliary hydraulic push rod; 19. Push rod; 20. Guide sleeve; 21. Lower pulley; 22. Track groove; 23. Track wheel; 24. Channel steel or C-shaped steel track; 25. Inner support; 26. Sliding wheel; 27. Connecting seat; 28. Connecting rod. Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Example 1: A kind of Figure 1 The mobile lifting platform shown is an improvement on the existing operating platform, which requires multiple disassemblies and reconstructions, resulting in long construction time, reduced efficiency, and safety hazards. The mobile lifting platform mainly includes a support frame 1, an operating platform, a main hydraulic push rod 13, and a load-bearing plate.

[0021] Specifically, from Figure 1 As can be seen, the support frame 1 includes two pairs of uprights 11 on both sides, totaling four uprights (the number of uprights can be increased on this basis). The tops of the pairs of uprights 11 on each side are fixed together by top connecting longitudinal beams 4, and the bottoms are fixed together by channel steel bottom supports 14. The uprights or corresponding connecting parts on both sides are fixed together as a whole by crossbeams, for example... Figure 1 The two sides are fixed together by the bottom connecting beam 9 between the bottom support 14 of the channel steel on both sides.

[0022] Figure 2 As can be seen, symmetrical guide rails 10 are provided on the inner side of a pair of uprights 11 (channel steel columns or I-beam columns) on each side. A support beam 12 is installed inside each pair of guide rails, that is, the two ends of the support beam 12 are matched and installed with the guide rails 10 on both sides.

[0023] Figure 2 It can also be seen that a pad 8 is fixed on the upper side of the bottom support 14 of the channel steel on both sides. A main hydraulic push rod 13 is vertically fixed in the middle of the bottom support of the channel steel or the pad. The top telescopic end of each main hydraulic push rod 13 is fixedly installed with the corresponding support beam 12, so that the main hydraulic push rod 13 can drive the corresponding support beam 12 to move up and down when it moves up and down.

[0024] like Figure 1As shown, a load-bearing plate 3 is connected between the two side support beams 12. Specifically, the ends of each side support beam 12 and load-bearing plate 3 are connected by a traction steel wire rope 7 (or a connecting rod). An operating platform 16 is provided on the rear side of the support frame 1.

[0025] Two pulley wire ropes located on both sides of the support frame 1 are respectively wound around the upper pulley 5 and the lower pulley 21 on the corresponding side. The first end of each pulley wire rope is fixedly connected to the load-bearing plate 3, and the tail end of each pulley wire rope is fixedly connected to the operating platform 16.

[0026] Based on the above structure and coordination, when the main hydraulic push rods 13 on both sides extend, they can drive the support beams 12 on both sides to move upward along the corresponding guide rails 10, and then drive the load-bearing plate 3 upward through the traction steel wire ropes 7 on both sides. During the upward movement of the load-bearing plate 3, the first end of the pulley steel wire rope 6 can be pulled upward, thereby causing the tail end of the pulley steel wire rope 6 to also move upward, and thus causing the operating platform 16 to move upward as well. A vertical track is provided on the rear side wall of the support frame 1, and a corresponding vertical guide rod is installed on the inner side of the operating platform, and the vertical guide rod is fitted into the corresponding track. This ensures that the operating platform moves in close contact with the support frame when it is raised or lowered, thus ensuring the stability of its raising and lowering movement. Therefore, when the main hydraulic push rods 13 are working, they can drive the load-bearing plate 3 and the operating platform 16 to rise or fall simultaneously. Among them, the load-bearing plate 3 is used to support building materials, equipment and tools, etc., and the operating platform is used to support construction personnel.

[0027] The aforementioned lifting platform, with its load-bearing plate 3 supporting heavy building materials, is located in the central area of ​​the support frame 1, ensuring stable operation at all times. The bottom of the support frame 1 does not require widening or reinforcement. Meanwhile, the operators are positioned on the outside of the support frame 1, and their freedom of movement is not restricted by it. Therefore, this embodiment provides the support frame 1 with a high and stable structure. Since the support frame 1 itself does not require lifting movement, overall stability during operation is ensured.

[0028] Compared with traditional construction methods, the device described in this embodiment can effectively improve construction efficiency. This project (Zhongyuan Digital Printing Industrial Park) is being used as a trial for an ongoing factory building project. The wall height is 7.75m. Using this device, approximately 45 yuan can be saved per meter of wall construction. The wall construction in this project is 1700 meters long and has now been completed, resulting in a total cost saving of 76,500 yuan, demonstrating significant economic benefits.

[0029] Example 2: Based on Example 1, an auxiliary lifting mechanism is further installed on the front side of the support frame 1. One implementation is as follows: Figure 4As shown, a support 17 is fixed to the outer wall of the column 11, and an auxiliary hydraulic push rod 18 is installed below the support 17. A push rod 19 is fixed to the telescopic end of the auxiliary hydraulic push rod 18. A guide sleeve 20 is also fixed to the outer side of the column 11, and the push rod 19 is fitted together with the guide sleeve 20. The wheel frame of the lower pulley 21 is fixedly installed at the lower end of the push rod 19. Thus, when the extension and retraction of the auxiliary hydraulic push rod 18 is controlled, the height position of the lower pulley 21 can be changed.

[0030] Based on Example 1, the load-bearing plate 3 is typically used to load stacked building materials such as brick piles. When both the load-bearing plate 3 and the operating platform 16 are at a high position, bricks are continuously used. As the height of the brick pile decreases, ideally, the height of the load-bearing plate 3 should be higher than the height of the operating platform 16. This allows for easier access to building materials and tools, reduces the frequency of bending over, and improves work efficiency. In this example, after the auxiliary hydraulic push rod 18 drives the lowering wheel 21 upward, the position of the load-bearing plate 3 remains relatively unchanged, while the operating platform 16 moves downward, thus adjusting the height difference between the load-bearing plate 3 and the operating platform 16. Continuing to control the lifting and lowering of the main hydraulic push rod 13 controls the simultaneous rise or fall of the entire load-bearing plate 3 and the operating platform 16. This ensures that the operating platform 16 is always below the load-bearing plate 3.

[0031] Furthermore, a track groove 22 can be provided on the outer side of the column 11, and a track wheel 23 can be installed on the inner side of the push rod 19, so that the track wheel 23 and the track groove 22 are fitted together to improve the stability of the push rod extension and retraction.

[0032] Example 3: Based on Example 1, the support frame 1 can be further configured as a telescopic assembly, where the bottom support and top support are fitted together, and then unfolded or locked by a drive mechanism. In the non-working state, both are retracted to facilitate movement. However, in the working state, both are unfolded and fixed, so that the entire assembled support frame is still considered as a whole when in operation.

[0033] Example 4: Based on Example 1, a walking mechanism and a locking mechanism are installed at the bottom of the support frame 1. One implementation method is to use a channel steel bottom support to form a fitting gap in the middle. A fixed crossbeam is fixed at the top within the fitting gap, and a movable crossbeam is fitted at the bottom. Multiple connecting rods are hinged between the movable and fixed crossbeams to ensure that the fixed and movable crossbeams are parallel, and that all connecting rods are parallel, thus forming a parallelogram. At the same time, a series of pulleys are installed at the bottom of each movable crossbeam. A vertical plate is set at the front or rear end of the channel steel bottom support, and a push-pull mechanism, such as a jack or threaded rod, is installed between the vertical plate and the movable crossbeam. Thus, when the movable crossbeam is driven to swing downward, a series of pulleys can be supported on the ground, and when the movable crossbeam swings upward, a series of movable pulleys can be retracted into the fitting gap.

[0034] like Figure 3 As shown, the operating platform 16 includes a platform base and surrounding railings 15.

[0035] Example 5: Based on Example 1, the two side support beams 12 are fixedly connected to both ends of the load-bearing plate 3.

[0036] Example 6: Based on Example 1 or 6, a guide mechanism is provided on the inner side of each column 11 of the load-bearing plate 3 and the support frame 1.

[0037] Example 7: Based on Example 1, a vertical track is further provided on the rear side wall of the support frame 1, such as... Figure 5 As shown, corresponding track wheels are installed on the inner side of the operating platform, and each track wheel is fitted into its corresponding track. This ensures that the operating platform moves in close contact with the support frame during lifting and lowering, guaranteeing the stability of its lifting and lowering motion.

[0038] Specifically, adopting such as Figure 6 The assembly relationship shown is as follows: the channel steel or C-shaped steel rail 24 is fixed to the rear wall of the column 1; the upper and lower ends of the inner support 25 are respectively provided with shaft holes and equipped with shafts; the ends of the upper and lower shafts are respectively installed with sliding wheels 26; a connecting rod 28 is vertically fixed to one side of the inner support 25; a connecting seat 27 is fixed to the end of the connecting rod 28; the connecting seat 27 is fixed to the front edge of the operating platform 16. Figure 6 As can be seen, the inner groove width of the C-shaped steel is greater than the groove opening width. The design ensures that the width of the connecting rod is the same as the groove opening width, and the width of the sliding wheels on both sides is the same as the inner groove width of the C-shaped steel. The diameter of the sliding wheels is slightly smaller than the groove depth of the C-shaped steel. The design aims to ensure a large distance between the upper and lower pairs of sliding wheels, utilizing the support relationship between the upper and lower pairs of sliding wheels and the inner wall of the C-shaped steel groove to ensure the stability of the operating platform's lifting and lowering, and to ensure that the operating platform remains level at all times.

[0039] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of the present invention and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of the present invention should be included within the protection scope of the present invention.

Claims

1. A mobile lifting platform for bricklaying and plastering, comprising a support frame (1), an operating platform, and a main hydraulic push rod (13), characterized in that, The support frame (1) includes two pairs of columns (11) on both sides. Each pair of columns (11) has symmetrical guide rails (10) on its inner side. A support beam (12) is fitted inside each pair of guide rails (10). A main hydraulic push rod (13) is installed at the bottom of each side of the support frame. The top telescopic end of each main hydraulic push rod (13) is fixedly installed with the corresponding support beam (12), so that the main hydraulic push rod (13) can drive the corresponding support beam (12) to move up and down during the lifting and lowering motion. A load-bearing plate (3) is connected between the two support beams (12). An operating platform (16) is provided on the rear side of the support frame (1). Two pulley wire ropes located on both sides of the support frame (1) are respectively wound around the upper pulley (5) and lower pulley (21) on the corresponding side. The first end of each pulley wire rope is fixed with the load-bearing plate (3). The ends of the steel wire ropes of each pulley are fixedly connected to the operating platform (16); the lower pulley is fixed to the bottom of the support frame (1), and an auxiliary lifting mechanism is installed on the front side of the support frame (1) to drive the lower pulley (21) to move up and down; a support (17) is fixed on the outer wall of the column (11), and an auxiliary hydraulic push rod (18) is installed below the support (17), and a push rod (19) is fixed at the telescopic end of the auxiliary hydraulic push rod (18); a guide sleeve (20) is also fixed on the outside of the column (11), and the push rod (19) and the guide sleeve (20) are fitted together; the wheel frame of the lower pulley (21) is fixedly installed at the lower end of the push rod (19); thus, when the extension and retraction of the auxiliary hydraulic push rod (18) is controlled, the height position of the lower pulley (21) can be changed.

2. The mobile lifting platform for wall plastering according to claim 1, characterized in that, A vertical track is provided on the rear side wall of the support frame (1), and corresponding track wheels are installed on the inner side of the operating platform. Each track wheel is matched and fitted into the corresponding track so that the operating platform moves in close contact with the support frame when it is raised and lowered, thus ensuring the stability of its raising and lowering movement.

3. The mobile lifting platform for wall plastering according to claim 1, characterized in that, The support frame (1) is configured as a telescopic assembly, so that the bottom support and the top support are assembled and then the drive mechanism unfolds or locks them.

4. The mobile lifting platform for wall plastering according to claim 1, characterized in that, A walking mechanism and a locking mechanism are installed at the bottom of the support frame (1).

5. The mobile lifting platform for wall plastering according to claim 1, characterized in that, The support frame (1) includes two pairs of columns (11) on both sides. The top of each pair of columns (11) is fixed together by a top connecting longitudinal beam (4), and the bottom is fixed together by a channel steel bottom support (14). The columns or corresponding connecting parts on both sides are fixed together as a whole by a crossbeam.

6. The mobile lifting platform for wall plastering according to claim 1, characterized in that, A guide mechanism is provided on the inner side of each column (11) of the load-bearing plate (3) and the support frame (1).

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