Hoisting device

Abstract

The utility model discloses a hoisting device which comprises a first motor, a connecting frame fixedly mounted on the outer surface of an output shaft of the first motor, a first connecting arm rotatably mounted at one end of the connecting frame, a second connecting arm rotatably mounted at one end of the first connecting arm, and a necking hoisting mechanism rotatably mounted at one end of the second connecting arm. Through the design of the necking hoisting mechanism, the tightening caliber and tightening force of the tightened lasso can be kept consistent through the function of synchronously reducing the lasso, and uniform distribution of loads can be achieved by tightening the four sets of lasso at the cornices of the four corners of the wooden pavilion top at the same time; the wood pavilion roof is prevented from inclining or deforming due to uneven stress in the hoisting process, it is guaranteed that the hoisting precision is improved in the hoisting process of the wood pavilion roof through even locking, it is guaranteed that the wood pavilion roof is horizontally stable, and the inclination problem caused by inconsistent tightening is avoided.

Description

Technical Field

[0001] This utility model relates to the field of hoisting technology for the roof of ancient wooden pavilions, specifically a hoisting device. Background Technology

[0002] In ancient architecture, the roof of a wooden pavilion is typically composed of eaves boards, rafters, and purlins. During installation, these components require hoisting equipment to lift the entire roof to a suitable height before fixing it to the main structure of the building. Hoisting operations generally occur at the eaves, where the pavilion roof connects to the building walls.

[0003] However, in the existing hoisting equipment, when lifting the wooden pavilion roof of ancient buildings, workers need to put the slings on the outer surface of the wooden pavilion roof and tighten them manually. However, the manual tightening of the slings will result in inconsistent tightening diameters of each set of slings, which will cause the wooden pavilion roof to tilt during the hoisting process and make it impossible to be accurately aligned with the predetermined position. Utility Model Content

[0004] The purpose of this utility model is to provide a hoisting device to solve the problem mentioned in the background art that the tightening process of each set of slings will result in inconsistent tightening diameters, causing the wooden pavilion roof to tilt during hoisting and making it impossible to accurately align with the predetermined position.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A hoisting device includes: a first motor, a connecting frame fixedly mounted on the outer surface of the output shaft of the first motor, a first connecting arm rotatably mounted on one end of the connecting frame, a second connecting arm rotatably mounted on one end of the first connecting arm, and a constricted hoisting mechanism rotatably mounted on one end of the second connecting arm.

[0007] Preferably, a connecting plate is fixedly installed at one end of the connecting frame, a winch is rotatably installed on the upper surface of the connecting plate, a second motor is fixedly installed on the upper surface of the connecting plate, the output shaft of the second motor is fixedly connected to the winch, and the winch is capable of winding and unwinding the constriction hoisting mechanism.

[0008] Preferably, a first hydraulic rod is rotatably mounted on one end of the connecting frame, and the piston rod of the first hydraulic rod is rotatably mounted on one end of the lower surface of the first connecting arm;

[0009] The first connecting arm has a second hydraulic rod rotatably mounted on one end of its lower surface, and the piston rod of the second hydraulic rod is rotatably mounted on one end of the lower surface of the second connecting arm.

[0010] Preferably, the constricted lifting mechanism includes a sling, which is wound inside a winch. The sling extending from the winch is attached to the outer surface of multiple sets of drive wheels and passes through the constricted cylinder.

[0011] The transmission wheel is rotatably installed inside the second connecting arm, and both sides of the outer surface of the constricted cylinder are fixedly installed with mating plates. The constricted cylinder is fixedly installed at one end of the outer surface of the second connecting arm through the mating plates.

[0012] Preferably, four sets of slings are fixedly installed on the slings extending from the constricted tube.

[0013] Preferably, the lasso is in the shape of a closed triangle and can be wound into the constricted tube to reduce the lasso diameter.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The design incorporates a winch, a first connecting arm, a second connecting arm, a first hydraulic rod, a second hydraulic rod, and a constricting hoisting mechanism. When hoisting the roof of an ancient wooden pavilion, the first and second hydraulic rods push the first and second connecting arms to extend them above the top of the pavilion roof. Then, the first motor is activated to align the second connecting arm with the roof below. The second motor then activates the winch to release the internally wound constricting hoisting mechanism from the lower end of the second connecting arm. The released constricting hoisting mechanism then slides down from the four corners of the pavilion roof, allowing workers to easily lift the roof. After the mechanism is installed inside the eaves at the four corners of the pavilion roof, the second motor can be started again to drive the winch to wind up. The rotating winch can simultaneously wind up the four sets of narrow-mouth hoisting mechanisms installed inside the eaves of the wooden pavilion roof, tightening the four sets of narrow-mouth hoisting mechanisms inside the eaves of the wooden pavilion roof. This ensures that the tightened narrow-mouth hoisting mechanisms have a consistent tightening diameter, ensuring that the pavilion roof remains horizontal during the hoisting process. It can avoid tilting and the inconvenience caused by it during assembly. This set-type narrow-mouth hoisting mechanism design can adapt to wooden pavilion roofs of different sizes and shapes. This flexibility allows the equipment to be used on different types of ancient buildings, increasing its versatility.

[0016] 2. Through the design of slings, constricted tubes, and slings, when hoisting the roof of the wooden pavilion of the ancient building, the second motor can be started to drive the winch to release the internally wound slings from the lower end of the second connecting arm. The four sets of slings fixed to the lower surface of the slings released from the lower end of the second connecting arm will slide out of the constricted tube at the lower end of the second connecting arm and fall onto the surface of the wooden pavilion roof to slide and unfold. Then, the workers can put the released slings into the eaves at the four corners of the pavilion roof. The second motor can then be started again to drive the winch to wind up the slings, and the slings can be wound up simultaneously with the four sets of slings sliding in. Inside the constricted tube, the four sets of lassoes in the lower half tighten at the eaves of the four corners of the wooden pavilion roof to achieve a locking function. This synchronous tightening of the lassoes ensures that the tightening diameter and tightening force of the lassoes are consistent. By simultaneously tightening the four sets of lassoes at the eaves of the four corners of the wooden pavilion roof, the load can be evenly distributed. This helps to prevent the wooden pavilion roof from tilting or deforming due to uneven force during hoisting. Furthermore, the even locking ensures that the wooden pavilion roof improves the hoisting accuracy during hoisting, ensures the horizontal stability of the wooden pavilion roof, and avoids tilting problems caused by inconsistent tightening. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the hoisting device of this utility model;

[0018] Figure 2 This is a schematic diagram of the transmission wheel structure in the hoisting device of this utility model;

[0019] Figure 3 This is a schematic diagram of the constricted-mouth lifting mechanism in the hoisting device of this utility model;

[0020] Figure 4 This is a schematic diagram of the sling structure in the hoisting device of this utility model.

[0021] In the diagram: 1. First motor; 101. Connecting frame; 102. Second motor; 103. Connecting plate; 104. Winch; 2. First connecting arm; 201. Second connecting arm; 202. Drive wheel; 203. First hydraulic rod; 204. Second hydraulic rod; 3. Narrowing lifting mechanism; 301. Lifting sling; 302. Connecting plate; 303. Narrowing cylinder; 304. Sling. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-4 This embodiment provides the following technical solution:

[0024] like Figures 1-2 As shown, a hoisting device includes: a first motor 1, a connecting frame 101 fixedly mounted on the outer surface of the output shaft of the first motor 1, a first connecting arm 2 rotatably mounted on one end of the connecting frame 101, a second connecting arm 201 rotatably mounted on one end of the first connecting arm 2, and a narrowing hoisting mechanism 3 rotatably mounted on one end of the second connecting arm 201.

[0025] A connecting plate 103 is fixedly installed at one end of the connecting frame 101. A winch 104 is rotatably installed on the upper surface of the connecting plate 103. A second motor 102 is fixedly installed on the upper surface of the connecting plate 103. The output shaft of the second motor 102 is fixedly connected to the winch 104. The winch 104 can wind up and unwind the constriction hoisting mechanism 3.

[0026] A first hydraulic rod 203 is rotatably mounted on one end of the connecting frame 101, and the piston rod of the first hydraulic rod 203 is rotatably mounted on one end of the lower surface of the first connecting arm 2.

[0027] The first connecting arm 2 has a second hydraulic rod 204 rotatably mounted on one end of its lower surface, and the piston rod of the second hydraulic rod 204 is rotatably mounted on one end of the lower surface of the second connecting arm 201.

[0028] Through the design of the winch 104, the first connecting arm 2, the second connecting arm 201, the first hydraulic rod 203, the second hydraulic rod 204, and the constricting lifting mechanism 3, when lifting the wooden pavilion roof of the ancient building, the first hydraulic rod 203 and the second hydraulic rod 204 can push the first connecting arm 2 and the second connecting arm 201 to unfold above the upper end of the wooden pavilion roof. Then, the first motor 1 can be started to drive the second connecting arm 201 to be flush with the wooden pavilion roof below. Then, the second motor 102 can be started to drive the winch 104 to release the internally wound constricting lifting mechanism 3 from the lower end of the second connecting arm 201. The constricting lifting mechanism 3, released from the lower end of the second connecting arm 201, will slide down and unfold from the four corners of the wooden pavilion roof, and then... After the staff loosens the constriction lifting mechanism 3 and places it into the eaves at the four corners of the pavilion roof, the second motor 102 can be restarted to drive the winch 104 to wind up. The rotating winch 104 can simultaneously wind up the four sets of constriction lifting mechanisms 3 placed into the eaves of the wooden pavilion roof, tightening the four sets of constriction lifting mechanisms 3. This ensures that the tightened constriction lifting mechanisms 3 have a consistent tightening diameter, ensuring that the pavilion roof remains horizontal during the lifting process and avoiding tilting that would cause inconvenience during assembly. This set-type constriction lifting mechanism 3 design can adapt to wooden pavilion roofs of different sizes and shapes. This flexibility allows the equipment to be used on different types of ancient buildings, increasing its versatility.

[0029] like Figures 3-4 As shown, the constricted lifting mechanism 3 includes a sling 301, which is wound inside the winch 104. The sling 301 extending from the winch 104 will adhere to the outer surface of multiple sets of transmission wheels 202 and pass through the constricted cylinder 303.

[0030] The transmission wheel 202 is rotatably installed inside the second connecting arm 201, and the constricting cylinder 303 has a docking plate 302 fixedly installed on both sides of its outer surface. The constricting cylinder 303 is fixedly installed at one end of the outer surface of the second connecting arm 201 through the docking plate 302.

[0031] Four sets of slings 304 are fixedly installed on the slings 301 extending from the constricted tube 303.

[0032] The lasso 304 is a closed triangle and can be wound into the constriction tube 303 to reduce the diameter of the lasso 304.

[0033] Through the design of the sling 301, the constricting cylinder 303, and the lasso 304, when hoisting the wooden pavilion roof of the ancient building, the second motor 102 can be activated to drive the winch 104 to release the internally wound sling 301 from the lower end of the second connecting arm 201. The four sets of lasso 304, fixedly installed on the lower surface of the sling 301 released from the lower end of the second connecting arm 201, will slide out from the constricting cylinder 303 at the lower end of the second connecting arm 201 and fall onto the surface of the wooden pavilion roof, unfolding. Then, workers can fit the released lasso 304 into the eaves at the four corners of the pavilion roof. The second motor 102 can then be activated again to drive the winch 104 to rewind the sling 301. 1. The four sets of lassos 304 can be simultaneously wound up and slid into the constriction cylinder 303. The four sets of lassos 304 in the lower part will be tightened in the eaves at the four corners of the wooden pavilion roof to achieve a locking function. This function of simultaneously reducing the lassos 304 can keep the tightening diameter and tightening force of the lassos 304 consistent. By tightening the four sets of lassos 304 at the four corners of the wooden pavilion roof at the same time, the load can be evenly distributed. This helps to prevent the wooden pavilion roof from tilting or deforming due to uneven force during hoisting. The even locking ensures that the wooden pavilion roof improves the hoisting accuracy during hoisting, ensures the horizontal stability of the wooden pavilion roof, and avoids tilting problems caused by inconsistent tightening.

[0034] Based on the above technical solution, the working steps of this solution are summarized as follows: In use, the first motor 1 can be assembled inside the truck bed of a transport vehicle. When lifting the wooden pavilion roof of an ancient building, the vehicle can be driven to the lifting position, and then the first hydraulic rod 203 and the second hydraulic rod 204 can be activated to push the first connecting arm 2 and the second connecting arm 201 to extend above the upper end of the wooden pavilion roof. Then, the first motor 1 can be activated to drive the second connecting arm 201 to be flush with the wooden pavilion roof below. Subsequently, the second motor 102 can be activated to drive the winch 104 to release the internally wound sling 301 from the lower end of the second connecting arm 201. The four sets of lassos 304 fixedly installed on the lower surface of the sling 301 released from the lower end of the second connecting arm 201 will slide out from the constricted cylinder 303 at the lower end of the second connecting arm 201. It can fall onto the surface of the wooden pavilion roof and slide down to unfold. Then, the workers can put the loosened lasso 304 into the eaves at the four corners of the pavilion roof. Then, the second motor 102 can be started again to drive the winch 104 to wind up the sling 301. The sling 301 can simultaneously wind up the four lassos 304 and slide them into the constriction cylinder 303. The four lassos 304 in the lower half will tighten in the eaves at the four corners of the wooden pavilion roof to achieve a locking function. This synchronous tightening function can ensure the locking and ensure the horizontal stability of the wooden pavilion roof during the hoisting process, improve the hoisting accuracy, and also lift the wooden pavilion roof together during the winding of the sling 301. The wooden pavilion roof can also be lifted by restarting the first hydraulic rod 203 and the second hydraulic rod 204 to push the first connecting arm 2 and the second connecting arm 201.

[0035] In summary, the synchronous reduction function of the lasso 304 ensures that the tightening diameter and tightening force of the lasso 304 are consistent. By simultaneously tightening the four sets of lasso 304 at the four corners of the eaves of the wooden pavilion roof, the load can be evenly distributed. This helps to prevent the wooden pavilion roof from tilting or deforming due to uneven force during hoisting. Furthermore, the uniform locking ensures that the wooden pavilion roof improves the hoisting accuracy during hoisting, ensures the horizontal stability of the wooden pavilion roof, and avoids tilting problems caused by inconsistent tightening.

[0036] All parts not described in this utility model are the same as or can be implemented using existing technology. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hoisting device, characterized in that, include: A first motor (1) is fixedly mounted on the outer surface of the output shaft of the first motor (1). A first connecting arm (2) is rotatably mounted on one end of the connecting arm (101). A second connecting arm (201) is rotatably mounted on one end of the first connecting arm (2). A narrowing lifting mechanism (3) is rotatably mounted on one end of the second connecting arm (201). A connecting plate (103) is fixedly installed at one end of the connecting frame (101). A winch (104) is rotatably installed on the upper surface of the connecting plate (103). A second motor (102) is fixedly installed on the upper surface of the connecting plate (103). The output shaft of the second motor (102) is fixedly connected to the winch (104). The winch (104) can wind up and unwind the constriction hoisting mechanism (3). A first hydraulic rod (203) is rotatably installed at one end of the connecting frame (101). The piston rod of the first hydraulic rod (203) is rotatably installed at one end of the lower surface of the first connecting arm (2). A second hydraulic rod (204) is rotatably installed at one end of the lower surface of the first connecting arm (2). The piston rod of the second hydraulic rod (204) is rotatably installed at one end of the lower surface of the second connecting arm (201). The constriction hoisting mechanism (3) includes a sling (301), which is wound inside a winch (104). The sling (301) extending from the winch (104) will adhere to the outer surface of multiple sets of drive wheels (202) and pass through the constriction cylinder (303). The drive wheels (202) are rotatably installed inside the second connecting arm (201). Both sides of the outer surface of the constriction cylinder (303) are fixedly installed with docking plates (302). The constriction cylinder (303) is fixedly installed at one end of the outer surface of the second connecting arm (201) through the docking plates (302).

2. The hoisting device according to claim 1, characterized in that: Four sets of slings (304) are fixedly installed on the slings (301) extending from the constricted tube (303).

3. A hoisting device according to claim 2, characterized in that: The lasso (304) is a closed triangle and can be wound into the constricting tube (303) to reduce the diameter of the lasso (304).

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