Lifting platform for construction site

Abstract

The utility model belongs to the technical field of building construction equipment, and particularly relates to a lifting platform for a construction site, which comprises a supporting unit, a stand column, a lifting platform and a driving unit, the supporting unit comprises a base, a supporting seat, a swing frame and a locking rod, and a fixing column is arranged on the base; the supporting seat is connected with the bottom end of the stand column, and a positioning groove matched with the fixing column is formed in the supporting seat; the first end of the swing frame is rotationally connected with the supporting base, and a clamping groove matched with the fixing column is formed in the side wall, close to one side of the fixing column, of the swing frame. The first end of the locking rod is movably connected with the supporting seat, and when the clamping groove makes contact with the fixing column, the locking rod can lock the swing frame at the current position. Compared with the prior art, the lifting platform is small in potential safety hazard during construction, convenient to disassemble and assemble and stable in structure.

Description

Technical Field

[0001] The utility model belongs to the technical field of construction equipment, and particularly relates to a lifting platform for construction sites. Background Art

[0002] During building construction, when painting and spraying the exterior walls of low bungalows and rural self-built houses, scaffolding is usually erected for exterior wall construction. It is necessary to repeatedly climb to pick up materials or transfer materials through ground personnel. This is not only time-consuming and laborious but also has low transportation efficiency. There are certain safety risks during the climbing process, which is not conducive to building construction.

[0003] In this regard, Chinese Patent No. CN214243696U discloses a lifting platform with an adjusting function for building construction, including a frame. Two support blocks are symmetrically and fixedly arranged at the front end of the frame. A rack is fixedly arranged on the front surface of the support block. A rotating shaft is arranged at the front end of the rack. A fixed pulley is fixedly arranged in the middle of the rotating shaft. Two C-shaped blocks are rotatably connected to the outer wall of the rotating shaft in a left-right symmetrical structure. A gear is arranged inside the C-shaped block. Two sliders are symmetrically and fixedly arranged on the outer wall of the C-shaped block. By adjusting the use of handwheel A, T-shaped rod, spring and block, the connection between the gear and the block is more stable and not easily detached, providing good support conditions for the workbench and effectively reducing safety risks.

[0004] However, it is found in actual use that when using this kind of lifting platform, the frame needs to be hung on the roof edge, and the handwheel B is rotated to fix the whole frame. Since the handwheel B is arranged on the top of the frame, workers need to climb onto the roof to rotate the handwheel B when fixing the frame, and there are still certain safety hazards. Therefore, this kind of lifting platform needs to be improved. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a lifting platform for construction sites aiming at the above existing technical problems. This kind of lifting platform has small safety hazards during erection, is convenient for disassembly and assembly, and has a stable structure.

[0006] In view of this, the utility model provides a lifting platform for construction sites, including a support unit, a column, a lifting platform, and a driving unit. The support unit includes:

[0007] A base, on which a fixed column is provided;

[0008] A support seat, which is connected to the bottom end of the column. A positioning groove adapted to the fixed column is provided on the support seat;

[0009] A swing frame, the first end of which is rotatably connected to the support seat. A clamping groove adapted to the fixed column is provided on the side wall of the swing frame close to the fixed column;

[0010] Locking rod, the first end of the locking rod is movably connected to the support base, and when the engaging groove contacts the fixed column, the locking rod can lock the swing frame in the current position.

[0011] In this technical solution, when using the lifting platform, first place the base in a suitable position, then place the support base on the base so that the positioning groove fits with the fixed column, then drive the swing frame to swing so that the engaging groove fits with the fixed column, and finally drive the locking rod to move to lock the swing frame to complete the construction of the lifting platform. Then, the construction materials can be placed on the lifting platform, and the driving unit is started to drive the lifting platform to move up and down the column, so as to perform the vertical transfer of the construction materials.

[0012] In the above technical solution, further, the first end of the locking rod is rotatably connected to the support base, a clamping groove is formed at the second end of the swing frame, and the second end of the locking rod can enter and exit the clamping groove.

[0013] In the above technical solution, further, a thread is provided on the outer wall of the second end of the locking rod, and a locking nut is threadedly connected to the second end of the locking rod. When the second end of the locking rod enters the clamping groove, the locking nut can lock the swing frame in the current position when tightly pressing against the swing frame.

[0014] In the above technical solution, further, there are two fixed columns, and the two fixed columns are spaced apart on the base; there are two swing frames and two locking rods, which respectively cooperate with the two fixed columns.

[0015] In the above technical solution, further, a guiding through groove is formed on the lifting platform, and the lifting platform is slidably sleeved on the column through the guiding through groove. The driving unit includes a winch and a towing rope. The winch is arranged at the top of the column, the first end of the towing rope is connected to the lifting platform, and the second end of the towing rope can be wound and released by the winch.

[0016] In the above technical solution, further, the base includes a fixed part and an extension part. The ground of the fixed part is flush with that of the extension part, a storage groove is formed on the side wall of the fixed part, and one end of the extension part is slidably connected in the storage groove.

[0017] The beneficial effects of the present utility model are:

[0018] 1. The lifting platform is built and disassembled through the cooperation of the base, fixed column, support base, swing frame and locking rod. Workers can complete the construction of the lifting platform on the ground, with small safety hazards. At the same time, the cooperation of the fixed column, swing frame and locking rod can realize the rapid construction and rapid disassembly of the lifting platform, which is convenient to use.

[0019] 2. By opening a clamping groove at the second end of the swing frame, after the second end of the locking rod enters the clamping groove, the locking rod is locked in the clamping groove through the threaded cooperation of the locking nut sleeve and the locking rod, realizing the locking of the swing frame. Unscrewing the locking nut sleeve can unlock the swing frame. The locking process and the unlocking process are simple to operate, and the difficulty of building and dismantling the lifting platform is low.

[0020] 3. By designing the base into a retractable structure of a fixed part and an extension part, the supporting area of the base can be increased during use to improve the stability of the lifting platform, and the volume of the base can be reduced during transportation to reduce the transportation cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 It is a three-dimensional structure schematic diagram of the first direction of the present invention.

[0023] Figure 2 It is a three-dimensional structure schematic diagram of the second direction of the present invention.

[0024] Figure 3 It is a three-dimensional structure schematic diagram of the support base in the present invention.

[0025] Figure 4 It is a top view structure schematic diagram of the support base in the present invention.

[0026] Figure 5 It is a first structure schematic diagram of the base in the present invention.

[0027] Figure 6 It is a second structure schematic diagram of the base in the present invention.

[0028] The markings in the figures are shown as:

[0029] 1. Column; 2. Lifting platform; 201. Guide through groove; 3. Winch; 301. Traction rope; 4. Base; 401. Fixed part; 402. Extension part; 403. Storage groove; 5. Fixed column; 6. Support base; 601. Positioning groove; 7. Swing frame; 701. Engaging groove; 702. Clamping groove; 8. Locking rod; 9. Locking nut sleeve; DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0031] In the description of the present utility model, it should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. For the convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be interpreted as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0032] Embodiment 1

[0033] As Figure 1 - Figure 2 shown, this embodiment provides a lifting platform for construction sites, including a support unit, a column 1, a lifting platform 2, and a driving unit. The support unit includes: a base 4, a support seat 6, a swing frame 7, a locking rod 8.

[0034] Please refer to Figure 1 , the column 1 is integrally in an inverted U shape, and the bottom end of the column 1 is detachably connected to the support seat 6;

[0035] A guiding through groove 201 is formed on the lifting platform 2, and the guiding through groove 201 penetrates the upper and lower surfaces of the lifting platform 2. The lifting platform 2 is slidably sleeved on the column 1 through the guiding through groove 201. A storage groove is formed on the lifting platform 2, and construction materials can be placed in the storage groove. The driving unit includes a winch 3 and a traction rope 301. The winch 3 is arranged at the top of the column 1, the first end of the traction rope 301 is connected to the lifting platform 2, and the second end of the traction rope 301 can be wound and released by the winch 3;

[0036] Please refer to Figure 5 , two fixing columns 5 are arranged on the base 4, and the two fixing columns 5 are spaced apart on the base 4;

[0037] Please refer to Figure 3 , two positioning grooves 601 adapted to the two fixing columns 5 are arranged on the support seat 6;

[0038] There are two swing frames 7. The first ends of the two swing frames 7 are both rotatably connected to the support base 6. A clamping groove 701 adapted to the fixed column 5 is formed on the side wall of the swing frame 7 close to the fixed column 5. When both the clamping groove 701 and the positioning groove 601 are in contact with the fixed column 5, the centers of the corresponding clamping groove 701 and the positioning groove 601 coincide;

[0039] There are two locking rods 8. The first ends of the two locking rods 8 are both movably connected to the support base 6. When the clamping groove 701 is in contact with the fixed column 5, the locking rod 8 can lock the swing frame 7 in the current position;

[0040] In this embodiment, when the lifting platform needs to be used, first place the base 4 in a suitable position, then place the support base 6 on the base 4 and push the support base 6 so that the two positioning grooves 601 are respectively attached to the outer walls of the two fixed columns 5. Then, drive the second ends of the two swing frames 7 to swing in sequence so that the two clamping grooves 701 are respectively attached to the outer walls of the two fixed columns 5. Next, drive the two locking rods 8 to move to lock the two swing frames 7 respectively. After that, put the lifting platform 2 on the column 1, connect the towing rope 301 to the lifting platform 2, and fix the column 1 on the support base 6 to complete the construction of the lifting platform. Then, when the lifting platform is at the lowest position, the construction materials can be placed on the lifting platform 2. Start the winch 3 to wind up the towing rope 301. The towing rope 301 pulls the lifting platform 2 to rise on the column 1, so as to transfer the construction materials to a high place. After the workers at the high place take down the construction materials, start the winch 3 to release the towing rope 301. The towing rope 301 cooperates with the gravity of the lifting platform 2 to make the lifting platform 2 descend to the lowest position on the column 1 for another vertical transfer of construction materials;

[0041] Through the technical solution of this embodiment, the workers can complete the construction of the lifting platform on the ground, with less potential safety hazards. At the same time, the cooperation of the fixed column 5, the swing frame 7, and the locking rod 8 can realize the rapid construction and rapid demolition of the lifting platform, which is convenient to use.

[0042] Embodiment 2

[0043] This embodiment provides a lifting platform for construction sites. In addition to including the technical solution of the above embodiment, a way to lock the swing frame 7 by the locking rod 8 is also disclosed;

[0044] Please refer to Figure 3 , in this embodiment, the first end of the locking rod 8 is rotatably connected to the support base 6. A clamping groove 702 is formed at the end of the second end of the swing frame 7. The width of the clamping groove 702 is adapted to the second end of the locking rod 8. The second end of the locking rod 8 can enter and exit the clamping groove 702;

[0045] The outer wall of the second end of the locking rod 8 is provided with threads, and a locking nut 9 is threadedly connected to the second end of the locking rod 8. When the second end of the locking rod 8 enters the card slot 702, the locking nut 9 can lock the swing frame 7 in the current position when it abuts against the swing frame 7;

[0046] Specifically, please refer to Figure 4 , the second end of the locking rod 8 can swing left and right on the support base 6. When the locking rod 8 is in Figure 4 In the position shown in, the second end of the swing frame 7 will be blocked by the locking rod 8 and the locking nut 9 during the swinging process and cannot make the engaging groove 701 fit against the outer wall of the fixed column 5. At this time, it is necessary to Figure 4 Swing the second end of the left locking rod 8 to the right or swing the second end of the right locking rod 8 to the left in the figure, then the swing frame 7 can swing freely, so that the engaging groove 701 can fit against the outer wall of the fixed column 5;

[0047] When the engaging groove 701 on the swing frame 7 fits against the outer wall of the fixed column 5, the second end of the locking rod 8 enters the card slot 702 by swinging. Since the movement track of the second end of the locking rod 8 is an arc, when the locking nut 9 is tightened so that the locking nut 9 abuts tightly against the swing frame 7, the second end of the locking rod 8 cannot withdraw from the card slot 702, that is, the locking of the swing frame 7 is completed; when it is necessary to unlock the swing frame 7, after unscrewing the locking nut 9 to leave enough clearance between the locking nut 9 and the swing frame 7, the second end of the locking rod 8 can withdraw from the card slot 702 by swinging, and the swing frame 7 can be unlocked;

[0048] Through the technical solution of this embodiment, the locking process and unlocking process of the locking rod 8 for the swing frame 7 are simple, and the difficulty of building and dismantling the lifting platform is low.

[0049] Embodiment 3

[0050] This embodiment provides a lifting platform for construction sites. In addition to including the technical solution of the above embodiment, the structure of the base 4 is also optimized;

[0051] Please refer to Figure 6 , in this embodiment, the base 4 includes a fixed part 401 and an extension part 402. The fixed part 401 is flush with the ground of the extension part 402. A storage groove 403 is provided on the side wall of the fixed part 401, and one end of the extension part 402 is slidably connected in the storage groove 403;

[0052] Preferably, the storage grooves 403 are staggered and distributed on the four side walls of the fixed part 401, and the four extension parts 402 are respectively connected to the four storage grooves 403, and the extension parts 402 can be hidden in the corresponding storage grooves 403;

[0053] When in use, it can increase the supporting area of the base 4 and improve the stability of the lifting platform. When in transportation, it can reduce the volume of the base 4 and lower the transportation cost.

[0054] The embodiments of the present utility model have been described above in conjunction with the accompanying drawings. Without conflict, the embodiments and features in the embodiments in this application can be combined with each other. This application is not limited to the above specific implementation manners. The above specific implementation manners are merely illustrative rather than restrictive. Under the inspiration of this application, those of ordinary skill in the art can also make many forms without departing from the purpose of this application and the scope protected by the claims, and all of them fall within the protection scope of this application.

Claims

1. A lifting platform for construction sites, comprising a support unit, a column (1), a lifting platform (2), and a driving unit, characterized in that: The support unit comprises: A base (4), wherein a fixing column (5) is provided on the base (4); A support seat (6), the support seat (6) being connected to the bottom end of the column (1), and the support seat (6) being provided with a positioning groove (601) adapted to the fixing column (5); A swing frame (7), wherein a first end of the swing frame (7) is rotatably connected to the support seat (6), and a clamping groove (701) adapted to the fixed column (5) is provided on a side wall of the swing frame (7) close to the fixed column (5); A locking rod (8), wherein the first end of the locking rod (8) is movably connected to the support seat (6), and when the engaging groove (701) contacts the fixing column (5), the locking rod (8) can lock the swing frame (7) at a current position.

2. A lifting platform for construction sites according to claim 1, characterized in that: The first end of the locking rod (8) is rotatably connected to the support seat (6), and the second end of the swing frame (7) is provided with a slot (702), and the second end of the locking rod (8) can enter and exit the slot (702).

3. A lifting platform for construction sites according to claim 2, characterized in that: A thread is provided on the outer wall of the second end of the locking rod (8), and a locking screw sleeve (9) is threadedly connected to the second end of the locking rod (8). When the second end of the locking rod (8) enters the slot (702), the locking screw sleeve (9) is tightly pressed against the swing frame (7) to lock the swing frame (7) in the current position.

4. A lifting platform for construction sites according to claim 1, characterized in that: There are two fixed columns (5), and the two fixed columns (5) are spaced apart on the base (4); there are two swing frames (7) and two locking rods (8), and they are respectively matched with the two fixed columns (5).

5. The lifting platform for construction site according to claim 1, characterized in that: The lifting platform (2) is provided with a guide slot (201), and the lifting platform (2) is slidably mounted on the column (1) through the guide slot (201). The driving unit comprises a winch (3) and a traction rope (301). The winch (3) is arranged on the top of the column (1), and the first end of the traction rope (301) is connected to the lifting platform (2), and the second end of the traction rope (301) can be wound up and released by the winch (3).

6. A lifting platform for construction site according to any one of claims 1 to 5, characterized in that: The base (4) comprises a fixed portion (401) and an extension portion (402); the fixed portion (401) is flush with the ground surface of the extension portion (402); a receiving groove (403) is provided on the side wall of the fixed portion (401); one end of the extension portion (402) is slidably connected to the receiving groove (403).

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