A hoisting device for installing a building steel structure

Abstract

This utility model discloses a hoisting device for installing steel structures in buildings, relating to the field of hoisting devices. It includes a main body with a base. Side supports are fixed to the left and right sides of the base, a front support is fixed to the front end of the base, and a rear support is slidably connected to the rear side of the base. A height adjustment mechanism is provided at the upper end of the front support, including a tilting bracket. A limit component is provided at the lower end of the tilting bracket. A folding wheel mechanism is provided at the bottom of the base, including several wheel supports. A universal wheel is installed at the other end of each wheel support, and a connecting rod is rotatably connected to the middle of each wheel support. A drive component is provided at the bottom of the base, and the other end of the connecting rod is rotatably connected to the drive component. The advantages are: by connecting the main body, the height adjustment structure, and the folding wheel mechanism together and designing them to be foldable, only a small amount of time is needed to unfold them during hoisting operations, and the possibility of structural weakness due to installation errors is reduced.

Description

Technical Field

[0001] This utility model relates to the field of hoisting devices, and in particular to a hoisting device for installing building steel structures. Background Technology

[0002] Steel structures are structures made of steel materials and are one of the main types of building structures. The structure mainly consists of steel beams, steel columns, steel trusses, and other components made of shaped steel and steel plates. Rust removal and prevention processes such as silanization, pure manganese phosphating, water washing and drying, and galvanizing are used. The components are typically connected by welds, bolts, or rivets. Due to its ease of construction, it is widely used in large factories, stadiums, and high-rise buildings.

[0003] During steel structure installation, it is common to encounter situations where work is carried out in enclosed and confined spaces. In such environments, cranes and other lifting equipment are difficult to access and cannot be used. Therefore, a small lifting device is needed to meet the requirements of steel structure installation in these conditions.

[0004] For example, patent document CN222159554U discloses a steel structure hoisting device for building installation, including a movable frame. The bottom of the inner wall of the movable frame has a groove, and a second motor is fixedly installed on the side of the inner wall of the groove. A lead screw is fixedly connected to the output shaft of the second motor, and a movable block is threadedly connected to the surface of the lead screw. A fixed frame is fixedly connected to the bottom of the movable block, and a motor housing is fixedly connected to the side of the fixed frame. A first motor is fixedly installed inside the motor housing. When the second motor works, it drives the lead screw to rotate. Through the threaded connection between the lead screw and the movable block, the fixed frame moves, achieving the purpose of adjusting the position of the hoisting device. When the first motor works, it drives the first rotating shaft to rotate, which in turn drives the rope winding roller to rotate. Through the winding connection between the rope winding roller and the steel wire rope, the ring buckle and hook move, achieving the purpose of hoisting the steel structure for building installation.

[0005] In the existing technology, since the working environment is a narrow and enclosed space, small hoisting devices are mostly designed to be detachable in order to be transported into the narrow space. They are then sent into the working space separately. However, the detachable design not only requires a lot of time to install before hoisting, but also has the risk of improper installation leading to a decrease in structural strength, thus leaving safety hazards during the hoisting process. Utility Model Content

[0006] The purpose of this utility model is to provide a hoisting device for installing steel structures in buildings in order to solve the above-mentioned problems.

[0007] This utility model achieves the above objectives through the following technical solutions:

[0008] A hoisting device for installing steel structures in buildings includes a main body, which includes a base. Symmetrically arranged side supports are fixedly connected to the left and right sides of the base. A front support is fixedly connected to the top front end of the base, and a rear support is slidably connected to the rear side of the base. A height adjustment mechanism is provided at the upper end of the front support, including a tilting support rotatably connected to the front support. A telescopic support is slidably connected to the upper end of the tilting support. A lifting component is installed inside the tilting support, and a limit component is provided at the lower end of the tilting support. A folding wheel mechanism is provided at the bottom of the base, including several symmetrically arranged wheel supports. A universal wheel is installed at the other end of each wheel support, and a connecting rod is rotatably connected to the middle of each wheel support. A drive component is provided at the bottom of the base, and the other end of the connecting rod is rotatably connected to the drive component.

[0009] Preferably, the main body of the device also includes a winch assembly fixedly connected to the rear end of the base. Two sets of symmetrically arranged steel wire ropes are wound on the winch assembly. Two symmetrically arranged positioning wheels are rotatably connected to the front section of the base. Two sets of symmetrically arranged pulleys are rotatably connected to the top of the telescopic bracket. The steel wire ropes pass through the positioning wheels and wrap around the top of the pulleys. The other end of the two sets of steel wire ropes is provided with a lifting device.

[0010] Preferably, the lifting device includes a horizontal plate fixedly connected to the other end of the wire rope, a number of hooks fixedly connected to the bottom of the horizontal plate, and an inclined support rod rotatably connected to the top of the base, with the other end of the inclined support rod hinged to the tilting bracket.

[0011] Preferably, the limiting component includes L-shaped plates symmetrically arranged on the left and right sides and fixedly connected to the bottom of the flip bracket. Several pins are pinned to the L-shaped plates, and several limiting holes are opened at the upper end of the front bracket. The pins on the L-shaped plates can be pinned to the limiting holes.

[0012] Preferably, the lifting assembly includes two lifting screws rotatably connected within the tilting bracket. A driven bevel gear is fixedly connected to the bottom of the lifting screw. A transmission shaft is rotatably connected to the lower end of the tilting bracket. Two driving bevel gears are fixedly connected to the transmission shaft, and the driving bevel gears mesh with the driven bevel gears. A worm gear is fixedly connected to one end of the transmission shaft. A worm is rotatably connected to the tilting bracket, and the worm meshes with the worm gear. An adjusting motor is fixedly connected to one side of the tilting bracket, and the output end of the adjusting motor is fixedly connected to the adjusting motor.

[0013] Preferably, the drive assembly includes a bidirectional screw that is rotatably connected to the side bracket. Two symmetrically arranged sliding linkage blocks are threaded onto the bidirectional screw. The sliding linkage blocks are slidably connected to the bidirectional screw. Both ends of the sliding linkage blocks are hinged to the connecting rod. A rotating handle is fixedly connected to one end of the bidirectional screw.

[0014] The beneficial effects are as follows: by connecting the main body of the device, the height adjustment structure and the folding wheel mechanism together and designing it to be foldable, it only takes a short time to unfold during hoisting work, and it reduces the possibility of structural weakness caused by installation errors. The folded device can be moved quickly by the workers and enter narrow spaces, which can meet the transportation and construction needs of narrow spaces.

[0015] The additional technical features and advantages of this utility model will become more apparent from the following description, or may be learned through specific practice of this utility model. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a three-dimensional view of the hoisting state of the hoisting device for installing a steel structure in a building, as described in this utility model.

[0018] Figure 2 This is a right view of the hoisting state of the hoisting device for installing a steel structure in this utility model;

[0019] Figure 3 This is a folded perspective view of the hoisting device for installing a steel structure in this building, as described in this utility model.

[0020] Figure 4 This is a front view of the folded state of the hoisting device for installing a steel structure in this utility model.

[0021] Figure 5 This is a perspective view of the relative positions of the winch assembly and the base of a hoisting device for installing a steel structure in a building, as described in this utility model.

[0022] Figure 6 This is a three-dimensional view of the folding wheel mechanism of a hoisting device for installing steel structures in buildings, as described in this utility model.

[0023] Figure 7 This is a three-dimensional structural view of the height adjustment mechanism of the hoisting device for installing a building steel structure as described in this utility model;

[0024] Figure 8 This is a rear sectional view of the height adjustment mechanism of a hoisting device for installing a building steel structure, as described in this utility model.

[0025] The annotations in the attached figures are explained as follows:

[0026] 101. Base; 102. Side bracket; 103. Winch assembly; 104. Front bracket; 105. Limiting hole; 106. Positioning wheel; 107. Rear bracket; 108. Wire rope; 109. Horizontal plate; 110. Hook; 111. Diagonal support rod; 201. Tilting bracket; 202. L-shaped plate; 203. Telescopic bracket; 204. Pulley; 205. Adjusting motor; 206. Worm gear; 207. Worm wheel; 208. Transmission shaft; 209. Driving bevel gear; 210. Driven bevel gear; 211. Lifting screw; 301. Double-acting screw; 302. Wheel support rod; 303. Universal wheel; 304. Connecting rod; 305. Sliding linkage block; 306. Rotating handle. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0028] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] The present invention will be further described below with reference to the accompanying drawings:

[0030] like Figures 1-8As shown, a hoisting device for installing a building steel structure includes a main body, which includes a base 101. Symmetrically arranged side supports 102 are fixedly connected to the left and right sides of the base 101. A front support 104 is welded to the top front end of the base 101, and a rear support 107 is slidably connected to the rear side of the base 101. A counterweight can be placed on the rear support 107. A height adjustment mechanism is provided at the upper end of the front support 104, including a tilting support 201 rotatably connected to the front support 104. A telescopic support 203 is slidably connected to the upper end of the tilting support 201. A lifting assembly is provided inside the tilting support 201, and a limit assembly is provided at the lower end of the tilting support 201. A folding wheel mechanism is provided at the bottom of the base 101, including several symmetrically arranged wheel supports 302. A caster wheel 303 is installed at the other end of the wheel support rod 302. A connecting rod 304 is rotatably connected in the middle of the wheel support rod 302. A drive assembly is set at the bottom of the base 101. The other end of the connecting rod 304 is rotatably connected to the drive assembly. After the operator retracts the telescopic bracket 203 into the flip bracket 201, the pin and the limiting hole 105 are removed. The flip bracket 201 is flipped. Then, the pin is used to pin the limiting hole 105 to the other side of the L-shaped plate 202 for limiting. Next, the rear bracket 107 is retracted into the base 101. Next, the drive assembly is activated, pushing the connecting rod 304 to move. The connecting rod 304 drives the wheel support rod 302 to flip to a vertical state, so that the caster wheel 303 contacts the ground. At the same time, the side bracket 102 is no longer in contact with the ground. This completes the change from the hoisting state to the folding state.

[0031] The main body of the device also includes a winch assembly 103 fixedly connected to the rear end of the base 101. Two sets of symmetrically arranged steel wire ropes 108 are wound on the winch assembly 103. Two symmetrically arranged positioning wheels 106 are rotatably connected to the front end of the base 101. Two sets of symmetrically arranged pulleys 204 are rotatably connected to the top of the telescopic bracket 203. The steel wire ropes 108 pass through the positioning wheels 106 and wrap around the top of the pulleys 204. The other end of the two sets of steel wire ropes 108 is equipped with a lifting device. The workers use the lifting device to fix the steel structure. Then the winch assembly 103 winds up the steel wire ropes 108, and the steel wire ropes 108 lift the steel structure. The setting of two sets of steel wire ropes 108 can increase the lifting points, thereby improving the stability during the lifting process and preventing the steel structure from tilting.

[0032] The lifting device includes a horizontal plate 109 fixedly connected to the other end of the wire rope 108. Several hooks 110 are bolted to the bottom of the horizontal plate 109. An inclined support rod 111 is rotatably connected to the top of the base 101. The other end of the inclined support rod 111 is hinged to the tilting bracket 201. The inclined support rod 111 provides support for the tilting bracket 201 to prevent the device from tipping over. By setting two hooks 110 and bolting them to the horizontal plate 109, the position of the hooks 110 can be adjusted according to the shape of the steel structure.

[0033] The limiting component includes L-shaped plates 202 that are symmetrically arranged on the left and right sides and are fixedly connected to the bottom of the flip bracket 201. Several pins are pinned on the L-shaped plates 202. Several limiting holes 105 are opened at the upper end of the front bracket 104. The pins on the L-shaped plates 202 can be pinned to the limiting holes 105. By pinning the L-shaped plates 202 to the limiting holes 105 through the pins, the flip bracket 201 is limited.

[0034] The lifting assembly includes two lifting screws 211 rotatably connected within a tilting bracket 201. A driven bevel gear 210 is fixedly connected to the bottom of each lifting screw 211. A transmission shaft 208 is rotatably connected to the lower end of the tilting bracket 201. Two driving bevel gears 209 are fixedly connected to the transmission shaft 208, meshing with the driven bevel gears 210. A worm gear 207 is fixedly connected to one end of the transmission shaft 208. A worm 206 is rotatably connected to the tilting bracket 201, meshing with the worm gear 207. An adjusting motor is fixedly connected to one side of the tilting bracket 201. 205. The output end of the adjusting motor 205 is fixedly connected to the adjusting motor 205. The adjusting motor 205 drives the worm gear 206 to rotate, the worm gear 206 drives the worm wheel 207 to rotate, the worm wheel 207 drives the transmission shaft 208 to rotate, the driving bevel gear 209 of the transmission shaft 208 rotates, the driving bevel gear 209 drives the driven bevel gear 210 to rotate, the driven bevel gear 210 drives the lifting screw 211 to rotate, and the lifting screw 211 drives the telescopic bracket 203 to rise and fall through the threaded connection, thereby realizing the adjustment of the lifting limit height, which can increase the applicability of the device.

[0035] The drive assembly includes a bidirectional screw 301 rotatably connected to the side support 102. Two symmetrically arranged sliding linkage blocks 305 are threadedly connected to the bidirectional screw 301. The sliding linkage blocks 305 are slidably connected to the bidirectional screw 301. Both ends of the sliding linkage blocks 305 are hinged to the connecting rod 304. A rotating handle 306 is fixedly connected to one end of the bidirectional screw 301. When the operator rotates the rotating handle 306, the rotating handle 306 drives the bidirectional screw 301 to rotate. The bidirectional screw 301 drives the two sliding linkage blocks 305 to move towards or away from each other through the threaded connection. When the two sliding linkage blocks 305 move away from each other, the sliding linkage blocks 305 drive the connecting rod 304 to move. The connecting rod 304 drives the wheel support rod 302 to flip into a vertical state, so that the caster wheel 303 contacts the ground. In this way, the operator can push the folded hoisting device to move.

[0036] Working principle: The steps for changing the device from a suspended state to a folding state are as follows: First, adjust motor 205 to drive worm gear 206 to rotate. Worm gear 206 drives worm wheel 207 to rotate, which in turn drives transmission shaft 208 to rotate. The driving bevel gear 209 of transmission shaft 208 rotates, which in turn drives driven bevel gear 210 to rotate. Driven bevel gear 210 drives lifting screw 211 to rotate. Lifting screw 211 drives telescopic bracket 203 to rise and fall via a threaded connection. After telescopic bracket 203 retracts into tilting bracket 201, the next step is for the operator to remove the limit pin from the limiting hole 105, tilting bracket 201 90 degrees. Then, the pin is used to close the limiting hole 105. Next, the rear bracket 107 is retracted into the base 101 after the pin is engaged with the other side of the L-shaped plate 202. Then, the operator rotates the rotating handle 306, which drives the bidirectional screw 301 to rotate. The bidirectional screw 301 drives two sliding linkage blocks 305 to move towards or away from each other through a threaded connection. When the two sliding linkage blocks 305 move away from each other, they drive the connecting rod 304 to move. The connecting rod 304 drives the wheel support rod 302 to flip into a vertical state, so that the caster wheel 303 contacts the ground. At the same time, the side bracket 102 is no longer in contact with the ground. In this way, the operator can push the folded hoisting device to move, thus completing the change from the hoisting state to the folded state.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A hoisting device for installing steel structures in buildings, comprising a main body of the device, characterized in that: The main body of the device includes a base (101), with symmetrically arranged side supports (102) fixedly connected to the left and right sides of the base (101). A front support (104) is fixedly connected to the top front end of the base (101), and a rear support (107) is slidably connected to the rear side of the base (101). A height adjustment mechanism is provided at the upper end of the front support (104), and the height adjustment mechanism includes a flip support (201) rotatably connected to the front support (104). A telescopic support (207) is slidably connected to the upper end of the flip support (201). 3) The flip bracket (201) is provided with a lifting component, the lower end of the flip bracket (201) is provided with a limit component, the bottom of the base (101) is provided with a folding wheel mechanism, the folding wheel mechanism includes several wheel support rods (302) arranged symmetrically on the left and right, the other end of the wheel support rod (302) is equipped with a universal wheel (303), the middle of the wheel support rod (302) is rotatably connected with a connecting rod (304), the bottom of the base (101) is provided with a driving component, and the other end of the connecting rod (304) is rotatably connected to the driving component.

2. The hoisting device for installing a building steel structure according to claim 1, characterized in that: The main body of the device also includes a winch assembly (103) fixedly connected to the rear end of the base (101). Two sets of symmetrically arranged steel wire ropes (108) are wound on the winch assembly (103). Two symmetrically arranged positioning wheels (106) are rotatably connected to the front end of the base (101). Two sets of symmetrically arranged pulleys (204) are rotatably connected to the top of the telescopic bracket (203). The steel wire ropes (108) pass through the positioning wheels (106) and wrap around the top of the pulleys (204). The other end of the two sets of steel wire ropes (108) is provided with a lifting device.

3. The hoisting device for installing a building steel structure according to claim 2, characterized in that: The lifting device includes a horizontal plate (109) fixedly connected to the other end of the wire rope (108), a number of hooks (110) fixedly connected to the bottom of the horizontal plate (109), and a diagonal support rod (111) rotatably connected to the top of the base (101). The other end of the diagonal support rod (111) is hinged to the flipping bracket (201).

4. The hoisting device for installing a building steel structure according to claim 1, characterized in that: The limiting component includes L-shaped plates (202) that are symmetrically arranged on the left and right sides and are fixedly connected to the bottom of the flip bracket (201). Several pins are pinned on the L-shaped plate (202). Several limiting holes (105) are opened at the upper end of the front bracket (104). The pins on the L-shaped plate (202) can be pinned to the limiting holes (105).

5. A hoisting device for installing steel structures in buildings according to claim 1, characterized in that: The lifting assembly includes two lifting screws (211) rotatably connected within the tilting bracket (201). A driven bevel gear (210) is fixedly connected to the bottom of the lifting screw (211). A transmission shaft (208) is rotatably connected to the lower end of the tilting bracket (201). Two driving bevel gears (209) are fixedly connected to the transmission shaft (208). The driving bevel gears (209) mesh with the driven bevel gears (210). A worm gear (207) is fixedly connected to one end of the transmission shaft (208). A worm (206) is rotatably connected to the tilting bracket (201). The worm (206) meshes with the worm gear (207). An adjusting motor (205) is fixedly connected to one side of the tilting bracket (201). The output end of the adjusting motor (205) is fixedly connected to the adjusting motor (205).

6. The hoisting device for installing steel structures in buildings according to claim 1, characterized in that: The drive assembly includes a bidirectional screw (301) rotatably connected to the side bracket (102). Two symmetrically arranged sliding linkage blocks (305) are threaded onto the bidirectional screw (301). The sliding linkage blocks (305) are slidably connected to the bidirectional screw (301). Both ends of the sliding linkage blocks (305) are hinged to the connecting rod (304). A rotating handle (306) is fixedly connected to one end of the bidirectional screw (301).

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