Lifting device for building construction

Abstract

The utility model relates to the field of building construction, in particular to a lifting device for building construction. According to the lifting device for building construction, the lifting arm can be folded, space is saved, transportation and storage are convenient, and use is flexible and convenient. A lifting device for building construction comprises a base, a mounting seat, a servo motor, a first lifting arm and the like, the mounting seat is connected to the upper side of the left portion of the base, the servo motor is connected to the upper side of the left rear portion of the base, and the first lifting arm is rotationally connected to the mounting seat. The third cargo boom and the second cargo boom are rotated to be folded and put away, so that the hoisting assembly is rotated and put away, the fixing piece is rotated, the telescopic connecting frame is rotated and stretched, the telescopic rod is stretched, the second cargo boom and the third cargo boom are limited through the telescopic connecting frame, and therefore the cargo booms can be folded and put away; space is saved, transportation and storage are facilitated, and use is flexible and convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of building construction, especially a hoisting device for building construction. BACKGROUND

[0002] Building construction refers to the process of assembling building materials and structural components into a building according to design drawings and relevant specifications. Hoisting operations in building construction are an important link to ensure the smooth transportation and installation of building materials and components. Hoisting equipment is widely used in building construction, including tower cranes, crawler cranes, truck cranes, and gantry cranes.

[0003] The existing building construction hoisting usually uses lifting equipment to lift the required items for building construction, allowing the required items to be moved to the construction area for use. However, the current lifting equipment is large in size and cannot be folded for storage, occupying a large space and being inconvenient for transportation and storage.

[0004] Therefore, it is necessary to design a hoisting device for building construction that can fold the hoisting arm for storage, save space, facilitate transportation and storage, and be flexible and convenient to use. SUMMARY

[0005] To overcome the shortcomings of the current lifting equipment being large in size, unable to be folded for storage, occupying a large space, and being inconvenient for transportation and storage, the utility model provides a hoisting device for building construction that can fold the hoisting arm for storage, save space, facilitate transportation and storage, and be flexible and convenient to use.

[0006] The technical implementation scheme of the utility model is as follows:

[0007] A hoisting device for building construction includes a base, a mounting seat, a servo motor, a first hoisting arm, a second hoisting arm, a third hoisting arm, a hoisting assembly, a locking mechanism, and a limiting mechanism. The left side of the base is connected to the mounting seat, and the left rear of the base is connected to the servo motor. The first hoisting arm is connected to the output shaft of the servo motor. The second hoisting arm is connected to the first hoisting arm, and the third hoisting arm is connected to the second hoisting arm. The left upper part of the third hoisting arm is provided with a hoisting assembly for lifting the required items for construction. The first hoisting arm and the second hoisting arm are provided with a locking mechanism for limiting the hoisting arm. The right part of the base is provided with a limiting mechanism for maintaining the balance of the device.

[0008] More preferably, two mounting holes are formed in the left and right parts of the base.

[0009] More preferably, the hoisting assembly comprises a common motor, a winding wheel and a hoisting cable, the common motor is connected to the front side of the left upper part of the third hoisting arm, the winding wheel is rotatably connected to the left upper part of the third hoisting arm, the winding wheel is connected to the output shaft of the common motor, and the hoisting cable is wound on the winding wheel.

[0010] More preferably, the locking mechanism comprises a fixed seat, a torsional spring, an extension connecting frame, an extension rod, a first spring and a fixed part, the first hoisting arm and the second hoisting arm are connected with the fixed seat on the lower side of the left upper part, the extension connecting frame is rotatably connected to the fixed seat, the extension connecting frame is connected with the adjacent fixed seat through the front and rear torsional springs, the extension connecting frame is connected with the extension rod on the front and rear sides of the extension end, the extension rod is connected with the adjacent extension connecting frame through the extension end, the extension rod is connected with the extension connecting frame through the first spring, and the fixed part is connected to the right lower part of the second hoisting arm and the third hoisting arm.

[0011] More preferably, the extension connecting frame is U-shaped.

[0012] More preferably, the limiting mechanism comprises a fixed plate, a limiting plate and a second spring, the fixed plate is connected to the upper side of the front and rear parts of the base, the limiting plate is slidably connected to the fixed plate, and the limiting plate is connected with the fixed plate on the same side through the second spring.

[0013] The utility model has the advantages that: 1, the utility model discloses through the rotation third hoisting arm and the second hoisting arm folding and storing, makes hoisting assembly rotation and stores, makes fixed part rotation, makes extension connecting frame rotation and lengthens, makes extension rod lengthen, and then through extension connecting frame to the limiting of second hoisting arm and third hoisting arm, thereby can fold and store hoisting arm, save space, convenient transportation and storage, and use flexible and convenient.

[0014] 2, the utility model discloses through the taking of counterweight and placing between limiting plate, makes limiting plate along fixed plate movement, second spring is extruded, and then clamps and fixes counterweight, thereby can install counterweight and keep the balance of the device, prevent the overturning when hoisting heavy objects, improve the stability of use. ACCURACY OF DRAWINGS

[0015] Figure 1 It is a three-dimensional structure schematic view of the utility model.

[0016] Figure 2 It is a part of three-dimensional structure schematic view of the utility model.

[0017] Figure 3 It is a three-dimensional structure schematic view of the locking mechanism of the utility model.

[0018] Figure 4 It is the three-dimensional structure schematic view of the position limiting mechanism.

[0019] The meaning of the reference signs in the drawing: 1: base, 2: mounting seat, 3: servo motor, 4: first lifting arm, 40: second lifting arm, 41: third lifting arm, 5: lifting assembly, 6: locking mechanism, 61: fixed seat, 62: torsional spring, 63: telescopic connecting frame, 64: telescopic rod, 65: first spring, 66: fixing piece, 7: position limiting mechanism, 71: fixed plate, 72: position limiting plate, 73: second spring. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the utility model more clear, the utility model will be described in further detail below in combination with the drawings. Only this declaration, the up, down, left, right, front, back, inside, outside and other orientation words appearing in the text or about to appear of the utility model, only take the drawings of the utility model as the base, it is not the specific limitation to the utility model.

[0021] A lifting device for building construction, as shown in Figures 1-4 The device comprises a base 1, a mounting seat 2, a servo motor 3, a first lifting arm 4, a second lifting arm 40, a third lifting arm 41, a lifting assembly 5, a locking mechanism 6 and a position limiting mechanism 7. The left and right parts of the base 1 are provided with two mounting holes in front and back, facilitating fixing and installation. The left upper side of the base 1 is connected with the mounting seat 2, and the left rear upper side of the base 1 is connected with the servo motor 3. The first lifting arm 4 is rotatably connected to the mounting seat 2, and the first lifting arm 4 is connected with the output shaft of the servo motor 3. The second lifting arm 40 is rotatably connected to the first lifting arm 4, and the third lifting arm 41 is rotatably connected to the second lifting arm 40. The left upper part of the third lifting arm 41 is provided with the lifting assembly 5 for lifting the required items for construction. The lifting assembly 5 comprises a general motor, a winding wheel and a lifting cable. The left upper front side of the third lifting arm 41 is connected with the general motor, and the left upper part of the third lifting arm 41 is rotatably connected with the winding wheel. The winding wheel is connected with the output shaft of the general motor, and the lifting cable is wound on the winding wheel. The locking mechanism 6 for limiting the lifting arm is arranged between the first lifting arm 4 and the second lifting arm 40 and between the second lifting arm 40 and the third lifting arm 41. The right part of the base 1 is provided with the position limiting mechanism 7 for keeping the device balanced.

[0022] As shown in Figure 1 and Figure 3As shown, the locking mechanism 6 comprises a fixed seat 61, a torsion spring 62, an extension connecting frame 63, an extension rod 64, a first spring 65 and a fixed part 66. The first lifting arm 4 and the second lifting arm 40 are connected with the fixed seat 61 on the upper left side. The extension connecting frame 63 is rotatably connected with the fixed seat 61. The extension connecting frame 63 is U-shaped. The torsion spring 62 is connected between the fixed seat 61 and the extension connecting frame 63. The extension rod 64 is connected with the extension connecting frame 63. The first spring 65 is connected between the extension rod 64 and the extension connecting frame 63. The second lifting arm 40 and the third lifting arm 41 are connected with the fixed part 66 on the lower right side. The fixed part 66 is rotatably connected with the extension connecting frame 63.

[0023] As shown in Figure 1 and Figure 4 The limiting mechanism 7 comprises a fixed plate 71, a limiting plate 72 and a second spring 73. The fixed plate 71 is connected with the bottom plate 1 on the upper side. The limiting plate 72 is slidably connected with the fixed plate 71. The second spring 73 is connected between the limiting plate 72 and the fixed plate 71.

[0024] When the construction needs to be lifted, the device can be used to make the base 1 move the car or the ground contact, and then the base 1 is fixed on the moving car or the ground through the bolt passing through the mounting hole. Then the counterweight is picked up and placed between the limiting plates 72, so that the limiting plates 72 move along the fixed plates 71, and the second springs 73 are squeezed, thereby clamping and fixing the counterweight, so that the counterweight can be installed to keep the device balanced, preventing overturning when lifting heavy objects, improving the stability of use, and then rotating the third lifting arm 41 and the second lifting arm 40 to expand, so that the lifting assembly 5 rotates and expands, the torsion spring 62 rotates and restores, the extension connecting frame 63 rotates and resets, the extension connecting frame 63 is U-shaped, the first spring 65 is stretched and rebounds, the extension rod 64 and the extension connecting frame 63 shrink and restore, and then the servo motor 3 is started. The first lifting arm 4 is rotated by the servo motor 3, thereby driving the second lifting arm 40, the third lifting arm 41 and the lifting assembly 5 to rotate, thereby adjusting the lifting height.

[0025] After rotating to the appropriate position, the servo motor 3 is turned off, the ordinary motor is started, the wire reel is rotated by the ordinary motor to pay out the lifting cable, so that the hook moves and contacts the material or other construction required articles that need to be lifted, then the ordinary motor is turned off, then the hook is hooked with the construction required articles, then the wire reel is rewound by the ordinary motor to wind the lifting cable, so that the hook and the construction required articles move and are lifted, so that the construction required articles move to the construction area for use, and then the hook is separated from the construction required articles.

[0026] After the lifting is completed, the first lifting arm 4, the second lifting arm 40, the third lifting arm 41 and the lifting assembly 5 are reset by reversing the operation of the servo motor 3, then the servo motor 3 is turned off, and the third lifting arm 41 and the second lifting arm 40 are folded and stored by rotating, so that the lifting assembly 5 is rotated and stored, the fixing piece 66 is rotated, the telescopic connecting frame 63 is rotated and elongated, the torsional spring 62 is deformed, the telescopic rod 64 is elongated, the first spring 65 is stretched and then rebounds, and then the second lifting arm 40 and the third lifting arm 41 are limited by the telescopic connecting frame 63, so that the lifting arm can be folded and stored, space is saved, transportation and storage are facilitated, use is flexible and convenient, then the lifting block is removed, the second spring 73 rebounds, the limiting plate 72 moves and resets, then the bolt is removed, and then the device can be removed.

[0027] Although the present disclosure has been shown and described with respect to certain exemplary embodiments thereof, it should be understood by the skilled in the art that certain modifications could be made within the scope of the disclosure, without departing from the spirit and scope of the disclosure as defined by the appended claims and equivalents thereof. Therefore, the scope of the present disclosure should not be limited to the above-described embodiments, but should be determined by the appended claims alone, and should be defined by the equivalents of the appended claims.

Claims

1. A hoisting device for construction work, characterised in that The utility model relates to a construction device, including base (1), mounting seat (2), servo motor (3), first hoist arm (4), second hoist arm (40), third hoist arm (41), hoist assembly (5), locking mechanism (6) and limiting mechanism (7), the upper side of base (1) left part is connected with mounting seat (2), the upper side of base (1) left rear part is connected with servo motor (3), mounting seat (2) is rotatably connected with first hoist arm (4), first hoist arm (4) is connected with the output shaft of servo motor (3), first hoist arm (4) is rotatably connected with second hoist arm (40), second hoist arm (40) is rotatably connected with third hoist arm (41), and the upper left part of third hoist arm (41) is equipped with hoist assembly (5) for hoisting the article needed for construction, locking mechanism (6) is equipped between first hoist arm (4) and second hoist arm (40) and between second hoist arm (40) and third hoist arm (41) for limiting hoist arm, and the right part of base (1) is equipped with limiting mechanism (7) for keeping the balance of the device.

2. A hoisting device for use in building construction according to claim 1, characterised in that The left and right two parts of base (1) are opened with two mounting holes in front and back.

3. A hoisting device for use in building construction according to claim 2, characterised in that Hoist assembly (5) includes ordinary motor, winding wheel and hoisting cable, the front side of the upper left part of third hoist arm (41) is connected with ordinary motor, the upper left part of third hoist arm (41) is rotatably connected with winding wheel, winding wheel is connected with the output shaft of ordinary motor, and hoisting cable is wound on winding wheel.

4. A hoisting device for use in building construction according to claim 3, characterised in that Locking mechanism (6) includes fixed seat (61), torsional spring (62), telescopic connecting frame (63), telescopic rod (64), first spring (65) and fixed part (66), the lower side of the upper left part of first hoist arm (4) and second hoist arm (40) is connected with fixed seat (61), fixed seat (61) is rotatably connected with telescopic connecting frame (63), the fixed end of telescopic connecting frame (63) is connected with the adjacent fixed seat (61) between front and back two torsional springs (62), the telescopic end of telescopic connecting frame (63) is connected with telescopic rod (64) between front and back two sides, the telescopic end of telescopic rod (64) is connected with the fixed end of adjacent telescopic connecting frame (63), the fixed end and telescopic end of telescopic rod (64) are connected with first spring (65) between, the lower side of the right part of second hoist arm (40) and third hoist arm (41) is connected with fixed part (66), and fixed part (66) is rotatably connected with the telescopic end of adjacent telescopic connecting frame (63).

5. A hoisting device for use in building construction according to claim 4, characterised in that Telescopic connecting frame (63) is U-shaped.

6. A hoisting device for use in building construction according to claim 5, characterised in that Limiting mechanism (7) includes fixed plate (71), limiting plate (72) and second spring (73), the upper side of the front and back two parts of base (1) is connected with fixed plate (71), and limiting plate (72) is slidably connected on fixed plate (71), and second spring (73) is connected between limiting plate (72) and the fixed plate (71) of same side.

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