A hoist for construction work

Abstract

The utility model relates to the technical field of building engineering, especially a hoist for building engineering, including mobile carrier, bracket, storage rack, movable plate and drive assembly D, mobile carrier activity sets up U -shaped frame B, and mobile carrier sets up drive U -shaped frame B and rises or falls drive assembly A, U -shaped frame B sets up drive bracket and rises or falls drive assembly B on, storage rack sets up on bracket and with its sliding connection, bracket sets up drive storage rack and retracts on bracket and stretches out drive assembly C, two movable plates are inserted respectively in the cross arm of corresponding side on U -shaped frame B and with its sliding connection, the bottom of movable plate sets up the clamping block in the one end of stretching out U -shaped frame B cross arm B, drive assembly D drives two movable plates and synchronously stretches out or retracts. The device contracts after the small volume, occupies the small space, and the device promotes building material after can still push the material horizontally, and the stability and safety factor are high.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, and in particular to a hoist for building engineering. Background Technology

[0002] During construction, cranes are usually placed at higher points to lift building materials. As the height of the building increases, the cranes need to be moved up frequently, which is time-consuming and labor-intensive.

[0003] Chinese Patent No. CN222961067U discloses a hoist for construction engineering. This device activates a telescopic rod, which moves a connecting block 2. The connecting block 2 moves a corresponding rack 1. The rack 1 meshes with a gear 1 to rotate. The gear 1 meshes with another rack 1 to rotate synchronously. The two racks 1 move corresponding baffles. At this time, the baffles move two corresponding sliders 2 on corresponding slide rails 2. Thus, the device can clamp the material placement box to prevent material spillage caused by shaking by moving the two baffles towards each other.

[0004] However, the device still has shortcomings: the overall frame height is fixed, it occupies a lot of space when not in use, and is inconvenient to transport. In addition, the device lacks auxiliary support structures, resulting in low stability. Furthermore, the device lacks the function of horizontally pushing the lifted material, requiring workers to remove the material between the baffles, which can easily lead to the risk of falling due to instability of the center of gravity. Utility Model Content

[0005] The purpose of this utility model is to address the problems existing in the background technology by proposing a hoist for construction engineering.

[0006] The technical solution of this utility model is: a hoist for construction engineering, including a mobile carrier, a U-shaped frame B movably mounted on the mobile carrier, and a drive component A for driving the U-shaped frame B to rise or fall on the mobile carrier;

[0007] The bracket is movably mounted on the U-shaped frame B, and the U-shaped frame B is equipped with a drive assembly B for driving the bracket to rise or fall.

[0008] A storage rack is mounted on and slidably connected to a bracket, and a drive assembly C is mounted on the bracket to drive the storage rack to extend or retract on the bracket;

[0009] Two movable plates are inserted into the corresponding horizontal arms on the U-shaped frame B and slidably connected thereto. A locking block is set at the bottom of the movable plate at the end that extends out of the horizontal arm B of the U-shaped frame B.

[0010] And drive component D, which is mounted on U-shaped frame B and drives the two movable plates to extend or retract synchronously.

[0011] Preferably, the mobile carrier includes a U-shaped frame A, with several wheels at the bottom of the U-shaped frame A, and several support arms rotatably connected to both sides of the U-shaped frame A. Guide rods that slide along the height direction are provided on the support arms, and positioning plates are connected to the bottom of the guide rods. A lead screw A that is helically connected to the support arm is provided on the support arm, with the lower end of the lead screw A rotatably connected to the positioning plate, and a knob provided at the upper end of the lead screw A.

[0012] Preferably, the drive assembly A includes a hydraulic scissor lift and a hydraulic pump. The number of hydraulic scissor lifts is four, and the four hydraulic scissor lifts are arranged in pairs. The bodies of the two hydraulic scissor lifts in the same pair are respectively mounted on the crossarm A on the corresponding side of the U-shaped frame A, and the output ends of the two hydraulic scissor lifts in the same pair are respectively connected to the crossarm B on the corresponding side of the U-shaped frame B. The body of the hydraulic pump is mounted on the U-shaped frame A, and the output end of the hydraulic pump is connected to the hydraulic cylinder on each hydraulic scissor lift.

[0013] Preferably, the drive assembly B includes a four-rope winch, a bracket is provided on the U-shaped frame B, the body of the four-rope winch is provided on the bracket, and the four wire ropes of the four-rope winch are respectively connected to the corresponding sides of the bracket.

[0014] Preferably, the bracket is provided with a sliding groove, and guide rails are provided on both sides of the sliding groove. The storage rack is located in the sliding groove, and guide grooves are provided on both sides of the storage rack. The guide rails are inserted into the guide grooves and slidably connected with them.

[0015] Preferably, the drive assembly C includes a rack, a gear, and a motor A. The bottom of the storage rack is provided with a groove, the rack is located in the groove and connected to its inner wall, the bottom of the bracket is provided with a rotating shaft connected to it, the gear is coaxially connected to the rotating shaft, and the gear is inserted into the groove and meshes with the rack. The body of the motor A is connected to the bracket, and the output end of the motor A is connected to the rotating shaft through a coupling A.

[0016] Preferably, the drive assembly D includes a lead screw B, a synchronous belt, and a motor B. There are two lead screws B, which are rotatably connected to the cross arm B on the corresponding side of the U-shaped frame B. A sliding shuttle is screwed onto the lead screw B and is helically connected to it. Each sliding shuttle is connected to the movable plate on the corresponding side. A pulley is coaxially arranged on each of the two lead screws B. The two pulleys are connected by a synchronous belt drive. The body of the motor B is connected to the U-shaped frame B. The output end of the motor B is connected to one of the lead screws B through a coupling B.

[0017] Compared with the prior art, the present invention has the following beneficial technical effects:

[0018] The device is easily moved by using a mobile carrier consisting of a U-shaped frame A and wheels. The U-shaped frame A features a foldable support arm with an adjustable positioning plate for easy positioning and improved stability. A hydraulic scissor lift drives the U-shaped plate B to rise and fall, allowing the device to be folded up when not in use, reducing its space requirements and facilitating transport. A retractable movable plate on the U-shaped frame B, with locking blocks at its bottom, allows the plate to be secured to a building, enhancing stability and preventing tipping. A bracket with sliding storage shelves on the U-shaped frame B, along with a four-rope winch that drives the bracket's ascent and descent, allows for the lifting of building materials or tools after the lifting height is fixed, providing high stability and enabling the materials to be moved horizontally onto the building, improving worker safety when retrieving items. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;

[0020] Figure 2 This is a schematic diagram of the connection structure of each component on U-shaped frame A;

[0021] Figure 3 A schematic diagram of the connection structure of each component on U-shaped frame B;

[0022] Figure 4 This is a schematic diagram of the connection structure between the storage shelf and the bracket.

[0023] Figure 5 This is a schematic diagram of the connection structure between the movable plate and the drive component C.

[0024] Reference numerals: 1. U-shaped frame A; 2. Wheel; 3. Support arm; 4. Positioning plate; 5. Lead screw A; 6. Hydraulic scissor lift; 7. U-shaped frame B; 8. Hydraulic pump; 9. Bracket; 10. Support; 11. Four-rope winch; 12. Storage rack; 121. Groove; 13. Rack; 14. Gear; 15. Motor A; 16. Movable plate; 161. Locking block; 17. Drive assembly D; 171. Lead screw B; 172. Pulley; 173. Synchronous belt; 174. Motor B; 18. Ground; 19. Building. Detailed Implementation

[0025] Example 1

[0026] like Figures 1-5As shown, this utility model proposes a hoist for construction engineering, including a mobile carrier, a bracket 9, a storage rack 12, a movable plate 16, and a drive assembly D17. The mobile carrier includes a U-shaped frame A1, with several wheels 2 arranged at the bottom of the U-shaped frame A1. A U-shaped frame B7 is movably mounted on the mobile carrier, with the opening of the U-shaped frame A1 facing opposite directions to the opening of the U-shaped frame B7. A drive assembly A is provided on the mobile carrier to drive the U-shaped frame B7 to rise or fall. The drive assembly A includes a hydraulic scissor lift 6 and a hydraulic pump 8. There are four hydraulic scissor lifts 6, arranged in pairs. The bodies of the two hydraulic scissor lifts 6 in the same pair are respectively mounted on the crossarm A on the corresponding side of the U-shaped frame A1, and the output ends of the two hydraulic scissor lifts 6 in the same pair are respectively connected to the crossarm B on the corresponding side of the U-shaped frame B7. The body of the hydraulic pump 8 is mounted on the U-shaped frame A1, and the output end of the hydraulic pump 8 is connected to the hydraulic cylinder on each hydraulic scissor lift 6. A bracket 9 is movably mounted on a U-shaped frame B7, and a drive assembly B is mounted on the U-shaped frame B7 to drive the bracket 9 to rise or fall. The drive assembly B includes a four-rope winch 11, a support 10 is mounted on the U-shaped frame B7, the body of the four-rope winch 11 is mounted on the support 10, and the four wire ropes of the four-rope winch 11 are respectively connected to the corresponding sides of the bracket 9. A storage rack 12 is mounted on the bracket 9 and slidably connected to it. A drive assembly C is mounted on the bracket 9 to drive the storage rack 12 to extend or retract on the bracket 9. A sliding groove is provided on the bracket 9, with guide rails on both sides of the groove. The storage rack 12 is located within the groove, and guide slots are provided on both sides of the storage rack 12. The guide rails are inserted into the guide slots and slidably connected to them. The drive assembly C includes a rack 13, a gear 14, and a motor A15. A groove 121 is provided at the bottom of the storage rack 12. The rack 13 is located within the groove 121 and connected to its inner wall. A rotating shaft is provided at the bottom of the bracket 9 and is rotatably connected thereto. The gear 14 is coaxially connected to the rotating shaft and is inserted into the groove 121, meshing with the rack 13. The motor A15 is connected to the bracket 9, and its output end is connected to the rotating shaft via a coupling A. Two movable plates 16 are provided, each inserted into the corresponding side of the cross arm on the U-shaped frame B7 and slidably connected thereto. A locking block 161 is provided at the bottom of each movable plate 16 at the end extending out of the cross arm B of the U-shaped frame B7. The drive assembly D17 is mounted on the U-shaped frame B7 and drives the two movable plates 16 to extend or retract synchronously. The drive assembly D includes a lead screw B171, a timing belt 173, and a motor B174. There are two lead screws B171, which are rotatably connected to the cross arm B on the corresponding side of the U-shaped frame B7. A sliding shuttle is screwed onto the lead screw B171 and is connected to it. Each sliding shuttle is connected to the movable plate 16 on the corresponding side. A pulley 172 is coaxially arranged on each of the two lead screws B171. The two pulleys 172 are connected by the timing belt 173. The motor B174 is connected to the U-shaped frame B7. The output end of the motor B174 is connected to one of the lead screws B171 through a coupling B.

[0027] In this embodiment, the device is moved to be close to (or near) the building 19, so that the opening of the U-shaped frame A1 faces away from the building 19. The hydraulic scissor lift 6 is activated to simultaneously lift the U-shaped frame B7 until the movable plate 16 reaches the top of the building. Then, the motor B174 is activated, and the motor B174 drives the lead screw B171 to rotate, thereby extending the movable plate 16 and allowing the locking block 161 to reach the other side of the building wall (or other high-strength structure). The height of the U-shaped frame B7 is lowered until the bottom surface of the movable plate 16 contacts the upper surface of the wall. Pull back the movable plate 16 so that the locking block 161 contacts the side of the wall away from the U-shaped frame A1. Then start the four-outlet rope winch 11. The four-outlet rope winch 11 lowers the bracket 9 to the ground. Place building materials or tools into the storage rack 12. Use the four-outlet rope winch 11 to lift the bracket 9 to the inside of the opening of the U-shaped frame B7. At this time, the bracket 9 will not swing due to the limitation of the U-shaped frame B7. Then start the motor A15. The motor A15 drives the gear 14 to rotate. The gear 14 drives the rack 13 to move, thereby moving the storage rack 12 horizontally onto the building 19.

[0028] Example 2

[0029] like Figure 1 and Figure 2 As shown, the hoist for construction engineering proposed in this utility model, compared with the first embodiment, has several support arms 3 rotatably connected to both sides of the U-shaped frame A1. The support arms 3 are provided with guide rods that slide along their height direction. The bottom of the guide rods is connected to the positioning plate 4. The support arms 3 are provided with screws A5 that are helically connected to them. The lower end of the screws A5 is rotatably connected to the positioning plate 4, and the upper end of the screws A5 is provided with a knob.

[0030] In this embodiment, when the device is pushed to the working position, the support arm 3 is horizontally rotated to unfold it, and then the knob is rotated. The knob drives the lead screw A5 to rotate, thereby causing the positioning plate 4 to gradually lower its height until it contacts the ground 18, thus achieving stable support and anti-slip protection for the entire device.

[0031] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A construction hoist, characterised in that, include: A mobile carrier, on which a U-shaped frame B (7) is movably mounted, and on which a drive component A is mounted to drive the U-shaped frame B (7) to rise or fall; The bracket (9) is movably mounted on the U-shaped frame B (7), and the U-shaped frame B (7) is provided with a drive assembly B for driving the bracket (9) to rise or fall. Storage rack (12), the storage rack (12) is mounted on the bracket (9) and slidably connected thereto, the bracket (9) is provided with a drive assembly C for driving the storage rack (12) to extend or retract on the bracket (9); Movable plate (16), there are two movable plates (16), the two movable plates (16) are inserted into the corresponding side of the cross arm on the U-shaped frame B (7) and slidably connected to it, and the bottom of the movable plate (16) is provided with a locking block (161) at the end of the cross arm B of the U-shaped frame B (7); And drive component D(17), which is set on U-shaped frame B(7) and drives two movable plates (16) to extend or retract synchronously.

2. A construction hoist according to claim 1, characterised in that The mobile carrier includes a U-shaped frame A (1), with several wheels (2) at the bottom of the U-shaped frame A (1), and several support arms (3) rotatably connected to both sides of the U-shaped frame A (1). A guide rod that slides along its height direction is provided on the support arm (3), and a positioning plate (4) is connected to the bottom of the guide rod. A screw A (5) that is helically connected to the support arm (3) is provided on the support arm (3). The lower end of the screw A (5) is rotatably connected to the positioning plate (4), and a knob is provided at the upper end of the screw A (5).

3. A construction hoist according to claim 2, characterised in that, The drive assembly A includes a hydraulic scissor lift (6) and a hydraulic pump (8). There are four hydraulic scissor lifts (6), and the four hydraulic scissor lifts (6) are arranged in pairs. The bodies of the two hydraulic scissor lifts (6) in the same group are respectively mounted on the cross arm A on the corresponding side of the U-shaped frame A (1), and the output ends of the two hydraulic scissor lifts (6) in the same group are respectively connected to the cross arm B on the corresponding side of the U-shaped frame B (7). The body of the hydraulic pump (8) is mounted on the U-shaped frame A (1), and the output end of the hydraulic pump (8) is connected to the hydraulic cylinder on each hydraulic scissor lift (6).

4. A construction hoist according to claim 1, characterised in that, The drive assembly B includes a four-rope winch (11), a bracket (10) is set on the U-shaped frame B (7), the body of the four-rope winch (11) is set on the bracket (10), and the four wire ropes of the four-rope winch (11) are respectively connected to the corresponding side of the bracket (9).

5. A construction hoist according to claim 1, characterised in that The bracket (9) is provided with a sliding groove, and guide rails are provided on both sides of the sliding groove. The storage rack (12) is located in the sliding groove, and guide grooves are provided on both sides of the storage rack (12). The guide rails are inserted into the guide grooves and slidably connected to them.

6. A construction hoist according to claim 1, characterised in that The drive assembly C includes a rack (13), a gear (14), and a motor A (15). The bottom of the storage rack (12) is provided with a groove (121). The rack (13) is located in the groove (121) and connected to its inner wall. The bottom of the bracket (9) is provided with a rotating shaft connected to it. The gear (14) is coaxially connected to the rotating shaft and is inserted into the groove (121) and meshes with the rack (13). The body of the motor A (15) is connected to the bracket (9). The output end of the motor A (15) is connected to the rotating shaft through a coupling A.

7. A construction hoist according to claim 1, characterised in that The drive assembly D includes a lead screw B (171), a timing belt (173), and a motor B (174). There are two lead screws B (171), which are rotatably connected to the cross arm B on the corresponding side of the U-shaped frame B (7). A sliding shuttle is screwed on the lead screw B (171) and connected to it. Each sliding shuttle is connected to the movable plate (16) on the corresponding side. A pulley (172) is coaxially set on each of the two lead screws B (171). The two pulleys (172) are connected by a timing belt (173). The body of the motor B (174) is connected to the U-shaped frame B (7). The output end of the motor B (174) is connected to one of the lead screws B (171) through a coupling B.

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