Adjustable unloading device for installation of prefabricated steel structure frame and construction method thereof

Abstract

The application discloses an adjustable unloading device for prefabricated steel structure frame installation and a construction method thereof, which comprises a supporting trapezoidal block mechanism, two sides of the supporting trapezoidal block mechanism are fixedly connected with one side of an adjusting limiting mechanism, the top of the supporting trapezoidal block mechanism is movably connected with the bottom of an adjusting trapezoidal block mechanism, and the outer wall of the adjusting trapezoidal block mechanism is screwedly connected with the inner wall of an adjusting mechanism. The adjustable unloading device for prefabricated steel structure frame installation and the construction method thereof can provide a space for the rotation of a rotating rod between clamping blocks, so that a handle is turned over to the inside of a storage groove, and then the handle is stored. When the handle needs to be unfolded, the handle is turned over from the inner wall of the storage groove, and then the outer wall of the rotating rod extrudes the inclined surface of the clamping block, so that the rotating rod enters the inside of a clamping groove, and the clamping block clamps the rotating rod through the reset of a reset spring, so that the handle is stable.

Description

Technical Field

[0001] This invention relates to the field of steel structure prefabricated frame installation technology, specifically to an adjustable unloading device and its construction method for installing steel structure prefabricated frames. Background Technology

[0002] In modular steel structure construction, to ensure smooth hoisting of the frame structure, the steel frame is divided into two frames. These frame-type unit modules are assembled, welded, and bolted together in the prefabrication plant to control welding deformation. The steel beams and their associated secondary beams and supports are then connected as a whole and lifted in one go to the frame column node installation position for horizontal pre-assembly. After the personnel working platform of the hoist is in place, installation and connection are carried out to complete the overall installation of the structural frame.

[0003] The current unloading device mainly consists of four sets of trapezoidal blocks arranged in four directions, connected by a limiting screw and an adjusting screw. The unloading device adjusts the position of the threaded block above the adjusting screw, thereby moving the upper threaded block. Since the threaded block is mostly rotated manually, and its surface has a wide stress area, this increases the fatigue for workers. Furthermore, because the adjusting screw is exposed to the outside, dust easily accumulates on its outer wall, and rust can occur. When disassembling the device after use, the dust and rust on the screw's outer wall can affect the normal movement of the threaded block. Additionally, when the adjusting screw is inserted into the device and the threaded block is fitted onto its outer wall for adjustment, the adjusting screw slides back and forth inside the device, requiring workers to constantly adjust its position, increasing the complexity of the installation process. Summary of the Invention

[0004] The present invention aims to overcome the shortcomings of the existing technology and provides an adjustable unloading device for the installation of prefabricated steel frame and its construction method.

[0005] To solve the above-mentioned technical problems, according to one aspect of the present invention, an adjustable unloading device for the installation of prefabricated steel structure frames is provided, comprising a supporting trapezoidal block mechanism, an adjusting trapezoidal block mechanism, and an adjusting limiting mechanism. The supporting trapezoidal block mechanism is fixed at both ends of the adjusting limiting mechanism, and both sides of the supporting trapezoidal block mechanism are fixedly connected to one side of the adjusting limiting mechanism. The adjusting trapezoidal block mechanism includes a left trapezoidal block, a left insertion hole, a right trapezoidal block, a right insertion hole, an adjusting threaded rod, and a washer. Adjusting mechanisms are respectively provided on the adjusting threaded rod outside the left and right trapezoidal blocks. The adjusting mechanisms are threadedly connected to the adjusting threaded rod. A stabilizing mechanism is fixedly connected to the adjusting mechanism. One outer end of the adjusting mechanism is fixedly connected to a cleaning mechanism. A sealing mechanism is fixed to the inner wall of the cleaning mechanism. The supporting trapezoidal block mechanism includes a bottom trapezoidal block and a top trapezoidal block arranged symmetrically. The top end of the bottom trapezoidal block is fixedly connected to the bottom end of the anti-slip mechanism.

[0006] The bottom trapezoidal block is fixed with a first limiting plate on each side, and the top trapezoidal block is fixed with a second limiting plate on each side.

[0007] The adjusting limiting mechanism includes a first limiting sleeve, a second limiting sleeve, a limiting threaded rod, and a limiting threaded sleeve. One side of the first limiting sleeve is fixedly connected to both sides of the first limiting plate, and one side of the second limiting sleeve is fixedly connected to both sides of the second limiting plate. Both the first and second limiting sleeves are movably connected to the outer wall of the limiting threaded rod, and the outer wall of the limiting threaded rod is threadedly connected to the inner wall of the limiting threaded sleeve.

[0008] The left trapezoidal block has a left insertion hole in its center, and the right trapezoidal block has a right insertion hole in its center. The bottom inclined surfaces of the left and right trapezoidal blocks are in movable contact with the top inclined surface of the bottom trapezoidal block, and the top inclined surfaces of the left and right trapezoidal blocks are in movable contact with the bottom inclined surface of the top trapezoidal block. The inner walls of the left and right insertion holes are movably connected to the outer wall of the adjusting threaded rod. Gaskets are provided on the outer sides of the left and right trapezoidal blocks, and an inclined groove is provided at the bottom of the outer wall of the adjusting threaded rod.

[0009] The adjustment mechanism includes an adjusting threaded sleeve, an adjusting threaded groove, a receiving groove, a fixing plate, a rotating rod, and a handle. The adjusting threaded sleeve has an adjusting threaded groove on its inner wall, and the adjusting threaded groove is threadedly connected to the adjusting threaded rod. The adjusting threaded sleeve has multiple receiving grooves on its outer wall, and the inner wall of the receiving groove is fixedly connected to one end of the fixing plate. The fixing plate has a rotating shaft on both sides, and one end of the rotating rod has a rotating opening. Both sides of the fixing plate are rotatably connected to the inner wall of the rotating opening through the rotating shaft. The other end of the rotating rod is fixedly connected to the handle. The receiving groove can accommodate the rotating rod and the handle.

[0010] The stabilizing mechanism includes a fixed block, a spring groove, a return spring, a clamping block, and a clamping groove. The stabilizing mechanism is fixed in the receiving groove. One side of the fixed block is fixedly connected to the inner wall of the receiving groove. The other side of the fixed block has a spring groove. The bottom of the spring groove is fixedly connected to one end of the return spring. The other end of the return spring is fixedly connected to one side of the clamping block. The other side of the clamping block has a clamping groove. The inner wall of the clamping groove is movably abutting against the outer wall of the rotating rod. The side of the clamping block away from the return spring is set as an inclined surface.

[0011] The cleaning mechanism includes a movable frame, a hollow groove, a circular cleaning brush, a fixed groove, a lubricating oil rack, an oil reservoir, an oil inlet, a sealing block, an inclined block, and an oil outlet. One end of the movable frame is fixedly connected to one end of the adjusting threaded sleeve, and a hollow groove is provided inside the movable frame. The inner wall of the hollow groove is fixedly connected to the outer wall of the circular cleaning brush, and a fixed groove is provided at the top of the hollow groove. A lubricating oil rack is fixed inside the fixed groove, and an oil reservoir is provided inside the lubricating oil rack. An oil inlet is provided at the top of the oil reservoir, and an oil outlet is provided at the bottom. The inner wall of the oil inlet is movably connected to the outer wall of the sealing block. An inclined block is horizontally fixed inside the oil reservoir, and the cleaning surface of the hollow groove is in contact with the outer wall of the adjusting threaded rod.

[0012] The sealing mechanism includes a support block, a movable groove, a connecting spring, a receiving rod, and a semi-circular block. The sealing mechanism is fixed inside the oil storage tank. One end of the support block has the movable groove. One end of the connecting spring is fixedly connected to the bottom of the movable groove, and the other end is fixedly connected to one end of the receiving rod. The other end of the receiving rod is fixedly connected to the top of the semi-circular block. The outer wall of the semi-circular block is movably connected to the inner wall of the oil drain port. The bottom end of the semi-circular block is movably abutting against the protruding thread on the outer wall of the adjusting threaded rod.

[0013] The anti-slip mechanism includes an anti-slip frame, a connecting groove, a compression spring, and a trapezoidal limiting block. The bottom end of the anti-slip frame is fixedly connected to the top end of the bottom trapezoidal block. A connecting groove is provided on one side of the anti-slip frame. One end of the compression spring is fixedly connected to the bottom of the connecting groove, and the other end of the compression spring is fixedly connected to the bottom end of the trapezoidal limiting block. The top end of the trapezoidal limiting block cooperates with the inclined groove, and the outer wall of the top of the trapezoidal limiting block is movably connected to the inner wall of the inclined groove.

[0014] According to another aspect of the present invention, a construction method for an adjustable unloading device for installing a prefabricated steel structure frame includes the following steps:

[0015] S1: Place the left and right trapezoidal blocks above the bottom trapezoidal block, and the top trapezoidal block above the left and right trapezoidal blocks. First, insert the limiting threaded rod into the first and second limiting sleeves. Then, fit the limiting threaded sleeve onto the outer wall of the limiting threaded rod to limit its movement. Insert the adjusting threaded rod into the left and right insertion holes. Fit the adjusting threaded sleeve onto the outer wall of the adjusting threaded rod through the adjusting thread groove. Rotate the handle; this rotation causes the adjusting threaded sleeve to rotate, moving it along the outer wall of the adjusting threaded rod through the adjusting thread groove. This, in turn, pushes the left and right trapezoidal blocks to move via the shims, thus adjusting the position of the left and right trapezoidal blocks. After the position of the block is adjusted, flipping the handle causes the rotating rod to rotate through the fixed plate. When the rotating rod rotates, the outer wall of the rotating rod presses against the inner wall of the clamping groove, which in turn presses the clamping block. The clamping block is pressed against the return spring, which allows the clamping blocks to unfold and provide space for the rotating rod to rotate. The handle is then flipped into the storage groove along with the rotating rod and stored. When the handle needs to be unfolded, it is flipped out from the inner wall of the storage groove, and the outer wall of the rotating rod presses against the inclined surface of the clamping block, causing the rotating rod to enter the clamping groove. The return spring then resets the clamping block to clamp the rotating rod, thus stabilizing the handle.

[0016] S2: While the adjusting threaded sleeve rotates and moves, the circular cleaning brush moves along the outer wall of the adjusting threaded rod, thus cleaning the outer wall of the adjusting threaded rod. Lubricating oil is injected into the lubricating oil holder through the oil inlet. While the moving frame rotates and moves, the lubricating oil holder moves accordingly, thus causing the arc-shaped surface of the semicircular block to contact the protruding thread on the outer wall of the adjusting threaded rod. The semicircular block is squeezed away from the inside of the oil outlet by the thread, and at the same time, the receiving rod squeezes the connecting spring, so that the lubricating oil in the oil reservoir flows to the outer wall of the adjusting threaded rod. When the non-contact surface of the semicircular block is no longer in contact with the thread, the reset of the connecting spring causes the semicircular block to block the inner wall of the oil outlet again.

[0017] S3: While the adjusting threaded rod is inserted into the left and right insertion holes, one end of the adjusting threaded rod presses against the inclined surface of the trapezoidal limit block. The trapezoidal limit block is pressed against the compression spring, causing the trapezoidal limit block to enter the anti-slip frame. As the adjusting threaded rod moves, it drives the inclined groove to move above the trapezoidal limit block. The reset of the compression spring drives the trapezoidal limit block to move upward, so that the top of the trapezoidal limit block is stuck inside the inclined groove, thereby stabilizing the adjusting threaded rod.

[0018] The present invention has the following advantages compared with the prior art.

[0019] 1. Place the left and right trapezoidal blocks above the bottom trapezoidal block, and the top trapezoidal block above the left and right trapezoidal blocks. First, insert the limiting threaded rod into the first and second limiting sleeves, and then fit the limiting threaded sleeve onto the outer wall of the limiting threaded rod to limit its position. Insert the adjusting threaded rod into the left and right insertion holes, and fit the adjusting threaded sleeve onto the outer wall of the adjusting threaded rod through the adjusting thread groove. Rotate the handle by hand; this rotation causes the adjusting threaded sleeve to rotate, moving it along the outer wall of the adjusting threaded rod through the adjusting thread groove. This, in turn, pushes the left and right trapezoidal blocks to move through the shims, thus adjusting their positions. After adjustment, flip the handle to rotate the rod. The rotating rod rotates via a fixed plate. As it rotates, the outer wall of the rotating rod presses against the inner wall of the clamping groove, thus compressing the clamping blocks. This compression of the clamping blocks then compresses the return spring, allowing the clamping blocks to unfold and providing space for the rotating rod to rotate. The handle then flips into the storage groove along with the rotating rod, thus retracting the handle. When the handle needs to be unfolded, it is flipped out from the inner wall of the storage groove. The outer wall of the rotating rod then presses against the inclined surface of the clamping blocks, causing the rotating rod to enter the clamping groove. The return spring then resets, causing the clamping blocks to clamp the rotating rod, stabilizing the handle. Unfolding the handle facilitates the operator's rotation of the adjusting threaded sleeve, while retracting the handle reduces the impact of unfolding the handle on the use of the device.

[0020] 2. As the adjusting threaded sleeve rotates and moves, the circular cleaning brush moves along the outer wall of the adjusting threaded rod, cleaning the outer wall of the adjusting threaded rod. Lubricating oil is injected into the lubrication oil holder through the oil inlet. As the moving frame rotates and moves, the lubrication oil holder moves accordingly, causing the arc-shaped surface of the semicircular block to contact the protruding threads on the outer wall of the adjusting threaded rod. The semicircular block is squeezed away from the inside of the oil drain port by the threads, and at the same time, the receiving rod squeezes the connecting spring, causing the lubricating oil in the oil reservoir to flow to the outer wall of the adjusting threaded rod. When the flat surface of the semicircular block is no longer in contact with the threads, the reset of the connecting spring causes the semicircular block to block the inner wall of the oil drain port again. The circular cleaning brush cleans the dust and rust on the outer wall of the adjusting threaded rod, and the flowing lubricating oil increases the lubrication of the adjusting threaded sleeve.

[0021] 3. While adjusting the threaded rod is inserted into the left and right insertion holes, one end of the threaded rod presses against the inclined surface of the trapezoidal limiting block. The trapezoidal limiting block is pressed against the compression spring, causing it to enter the anti-slip frame. As the threaded rod moves, the inclined groove moves above the trapezoidal limiting block. The compression spring then resets, causing the trapezoidal limiting block to move upward, so that the top of the trapezoidal limiting block is locked inside the inclined groove, thus stabilizing the threaded rod. The lifting of the trapezoidal limiting block increases the stability of the threaded rod after insertion, preventing it from sliding during device installation. Attached Figure Description

[0022] The present invention will now be further described with reference to the accompanying drawings.

[0023] Figure 1 This is a schematic diagram of the structure of the present invention.

[0024] Figure 2 This is a cross-sectional view of the overall structure of the present invention;

[0025] Figure 3 This is an exploded view of the overall structure of the present invention;

[0026] Figure 4 This is an exploded view of the adjusting limit mechanism of the present invention;

[0027] Figure 5 This is an exploded cross-sectional view of the adjustable trapezoidal block mechanism of the present invention;

[0028] Figure 6 This is an exploded cross-sectional view of the adjustment mechanism of the present invention;

[0029] Figure 7 This is an exploded view of the stabilizing mechanism of the present invention;

[0030] Figure 8 This is an exploded cross-sectional view of the cleaning mechanism of the present invention;

[0031] Figure 9 This is an exploded view of the sealing mechanism of the present invention;

[0032] Figure 10 This is an exploded view of the anti-slip mechanism of the present invention.

[0033] In the diagram: 1. Supporting trapezoidal block mechanism; 101. Bottom trapezoidal block; 102. First limiting plate; 103. Top trapezoidal block; 104. Second limiting plate; 2. Adjusting limiting mechanism; 201. First limiting sleeve; 202. Second limiting sleeve; 203. Limiting threaded rod; 204. Limiting threaded sleeve; 3. Adjusting trapezoidal block mechanism; 301. Left trapezoidal block; 302. Left insertion hole; 303. Right trapezoidal block; 304. Right insertion hole; 305. Adjusting threaded rod; 306. Shim; 307. Inclined groove; 4. Adjusting mechanism; 401. Adjusting threaded sleeve; 402. Adjusting threaded groove; 403. Receiving groove; 404. Fixing plate; 405. Rotating rod; 406. Handle 5. Stabilizing Mechanism; 501. Fixing Block; 502. Spring Groove; 503. Return Spring; 504. Clamping Block; 505. Clamping Groove; 6. Cleaning Mechanism; 601. Moving Frame; 602. Hollow Groove; 603. Circular Cleaning Brush; 604. Fixing Groove; 605. Lubricating Oil Rack; 606. Oil Storage Tank; 607. Oil Inlet; 608. Sealing Block; 609. Inclined Block; 610. Oil Drain; 7. Sealing Mechanism; 701. Support Block; 702. Moving Groove; 703. Connecting Spring; 704. Storage Rod; 705. Semicircular Block; 8. Anti-slip Mechanism; 801. Anti-slip Frame; 802. Connecting Groove; 803. Compression Spring; 804. Trapezoidal Limiting Block. Detailed Implementation

[0034] The present invention will be further described below with reference to specific embodiments and accompanying drawings.

[0035] An adjustable unloading device for installing prefabricated steel structure frames, provided by a typical embodiment of the present invention, includes a supporting trapezoidal block mechanism 1, an adjusting trapezoidal block mechanism 3, and an adjusting limiting mechanism 2. The supporting trapezoidal block mechanism 1 is fixed to the upper and lower ends of the adjusting limiting mechanism 2. Both sides of the supporting trapezoidal block mechanism 1 are fixedly connected to one side of the adjusting limiting mechanism 2. The adjusting trapezoidal block mechanism 3 includes a left trapezoidal block 301, a left insertion hole 302, a right trapezoidal block 303, a right insertion hole 304, an adjusting threaded rod 305, and a washer 306. An adjustment mechanism 4 is respectively provided on the outer side of the left trapezoidal block 301 and the right trapezoidal block 303 on the threaded rod 305. The adjustment mechanism 4 is threadedly connected to the adjustment threaded rod 305. A stabilizing mechanism 5 is fixedly connected to the adjustment mechanism 4. One outer end of the adjustment mechanism 4 is fixedly connected to the cleaning mechanism 6. A sealing mechanism 7 is fixedly fixed to the inner wall of the cleaning mechanism 6. The supporting trapezoidal block mechanism 1 includes: a bottom trapezoidal block 101 and a top trapezoidal block 103 arranged symmetrically. The top end of the bottom trapezoidal block 101 is fixedly connected to the bottom end of the anti-slip mechanism 8.

[0036] The bottom trapezoidal block 101 is fixed with a first limiting plate 102 on both sides, and the top trapezoidal block 103 is fixed with a second limiting plate 104 on both sides.

[0037] In a relatively specific embodiment, the adjusting limiting mechanism 2 includes a first limiting sleeve 201, a second limiting sleeve 202, a limiting threaded rod 203, and a limiting threaded sleeve 204. One side of the first limiting sleeve 201 is fixedly connected to both sides of the first limiting plate 102, and one side of the second limiting sleeve 202 is fixedly connected to both sides of the second limiting plate 104. Both the first limiting sleeve 201 and the second limiting sleeve 202 are movably connected to the outer wall of the limiting threaded rod 203, and the outer wall of the limiting threaded rod 203 is threadedly connected to the inner wall of the limiting threaded sleeve 204.

[0038] The left trapezoidal block 301 has a left insertion hole 302 in its center, and the right trapezoidal block 303 has a right insertion hole 304 in its center. The bottom inclined surfaces of the left trapezoidal block 301 and the right trapezoidal block 303 are in movable contact with the top inclined surface of the bottom trapezoidal block 101. The top inclined surfaces of the left trapezoidal block 301 and the right trapezoidal block 303 are in movable contact with the bottom inclined surface of the top trapezoidal block 103. The inner walls of the left insertion hole 302 and the right insertion hole 304 are movably connected to the outer wall of the adjusting threaded rod 305. A gasket 306 is provided on the outer side of the left trapezoidal block 301 and the right trapezoidal block 303. An inclined groove 307 is provided at the bottom of the outer wall of the adjusting threaded rod 305.

[0039] In a relatively specific embodiment, the adjustment mechanism 4 includes an adjustment threaded sleeve 401, an adjustment threaded groove 402, a receiving groove 403, a fixing plate 404, a rotating rod 405, and a handle 406. The inner wall of the adjustment threaded sleeve 401 is provided with an adjustment threaded groove 402, and the adjustment threaded groove 402 is threadedly connected to the adjustment threaded rod 305. The outer wall of the adjustment threaded sleeve 401 is provided with multiple receiving grooves 403, and the inner wall of the receiving grooves 403 is fixedly connected to one end of the fixing plate 404. Both sides of the fixing plate 404 are provided with rotating shafts, and one end of the rotating rod 405 is provided with a rotating opening. Both sides of the fixing plate 404 are rotatably connected to the inner wall of the rotating opening through rotating shafts. The other end of the rotating rod 405 is fixedly connected to the handle 406. The receiving groove 403 can accommodate the rotating rod 405 and the handle 406.

[0040] In a preferred embodiment, the stabilizing mechanism 5 includes a fixing block 501, a spring groove 502, a return spring 503, a clamping block 504, and a clamping groove 505. The stabilizing mechanism 5 is fixed within the receiving groove 403. One side of the fixing block 501 is fixedly connected to the inner wall of the receiving groove 403. The other side of the fixing block 501 has a spring groove 502. The bottom of the spring groove 502 is fixedly connected to one end of the return spring 503. The other end of the return spring 503 is fixedly connected to one side of the clamping block 504. The other side of the clamping block 504 has a clamping groove 505. The inner wall of the clamping groove 505 movably abuts against the outer wall of the rotating rod 405. The side of the clamping block 504 away from the return spring 503 is set as an inclined surface.

[0041] In a preferred embodiment, the cleaning mechanism 6 includes a movable frame 601, a hollow groove 602, a circular cleaning brush 603, a fixed groove 604, a lubricating oil rack 605, an oil reservoir 606, an oil inlet 607, a sealing block 608, an inclined block 609, and an oil outlet 610. One end of the movable frame 601 is fixedly connected to one end of the adjusting threaded sleeve 401, and the movable frame 601 has a hollow groove 602 inside. The inner wall of the hollow groove 602 is fixedly connected to the outer wall of the circular cleaning brush 603. The top of the hollow groove 602 is provided with a fixing groove 604, and a lubricating oil rack 605 is fixed in the fixing groove 604. The lubricating oil rack 605 is provided with an oil storage tank 606. The top of the oil storage tank 606 is provided with an oil inlet 607 and the bottom is provided with an oil outlet 610. The inner wall of the oil inlet 607 is movably connected to the outer wall of the sealing block 608. An inclined block 609 is horizontally fixed in the oil storage tank 606. The cleaning surface of the hollow groove 602 is in contact with the outer wall of the adjusting threaded rod 305.

[0042] In a preferred embodiment, the sealing mechanism 7 includes a support block 701, a moving groove 702, a connecting spring 703, a receiving rod 704, and a semi-circular block 705. The sealing mechanism 7 is fixed inside the oil storage tank 606. One end of the support block 701 has the moving groove 702. One end of the connecting spring 703 is fixedly connected to the bottom of the moving groove 702, and the other end is fixedly connected to one end of the receiving rod 704. The other end of the receiving rod 704 is fixedly connected to the top of the semi-circular block 705. The outer wall of the semi-circular block 705 is movably connected to the inner wall of the oil drain port 610. The bottom end of the semi-circular block 705 is movably abutting against the protruding thread on the outer wall of the adjusting threaded rod 305.

[0043] In a preferred embodiment, the anti-slip mechanism 8 includes an anti-slip frame 801, a connecting groove 802, a compression spring 803, and a trapezoidal limiting block 804. The bottom end of the anti-slip frame 801 is fixedly connected to the top end of the bottom trapezoidal block 101. A connecting groove 802 is provided on one side of the anti-slip frame 801. One end of the compression spring 803 is fixedly connected to the bottom of the connecting groove 802, and the other end of the compression spring 803 is fixedly connected to the bottom end of the trapezoidal limiting block 804. The top end of the trapezoidal limiting block 804 cooperates with the inclined groove 307, and the top outer wall of the trapezoidal limiting block 804 is movably connected to the inner wall of the inclined groove 307.

[0044] Another typical embodiment of the present invention provides a construction method for an adjustable unloading device for the installation of prefabricated steel structure frames, comprising the following steps:

[0045] S1: Place the left trapezoidal block 301 and the right trapezoidal block 303 above the bottom trapezoidal block 101, and place the top trapezoidal block 103 above the left trapezoidal block 301 and the right trapezoidal block 303. First, insert the limiting threaded rod 203 into the inside of the first limiting sleeve 201 and the second limiting sleeve 202. Then, put the limiting threaded sleeve 204 on the outer wall of the limiting threaded rod 203 to limit the limiting threaded rod 203. Finally, insert the adjusting threaded rod 305 into the left insertion hole 302. Inside the right insertion hole 304, the adjusting threaded sleeve 401 is fitted onto the outer wall of the adjusting threaded rod 305 through the adjusting threaded groove 402. The handle 406 is rotated by hand, causing the adjusting threaded sleeve 401 to rotate. This, in turn, moves the adjusting threaded sleeve 401 along the outer wall of the adjusting threaded rod 305 through the adjusting threaded groove 402. This, in turn, pushes the left trapezoidal block 301 and the right trapezoidal block 303 to move via the shim 306, thereby adjusting the position of the left trapezoidal block 301 and the right trapezoidal block 303. After the position of the block 303 is adjusted, the handle 406 is flipped to drive the rotating rod 405 to rotate through the fixed plate 404. When the rotating rod 405 rotates, the outer wall of the rotating rod 405 presses against the inner wall of the clamping groove 505, thereby pressing the clamping block 504. The clamping block 504 is pressed against the return spring 503, thereby allowing the clamping blocks 504 to expand and provide space for the rotating rod 405 to rotate. Thus, the handle 406 is flipped into the storage groove 403 along with the rotating rod 405, and then the handle 406 is stored. When it is necessary to unfold the handle 406, the handle 406 is flipped out from the inner wall of the storage groove 403, and then the outer wall of the rotating rod 405 presses against the inclined surface of the clamping block 504, so that the rotating rod 405 enters the inside of the clamping groove 505. The return spring 503 resets and drives the clamping block 504 to clamp the rotating rod 405, thereby stabilizing the handle 406.

[0046] S2: While the adjusting threaded sleeve 401 rotates and moves, the circular cleaning brush 603 moves along the outer wall of the adjusting threaded rod 305, thereby cleaning the outer wall of the adjusting threaded rod 305. The lubricating oil rack 605 is filled with lubricating oil through the oil inlet 607. While the moving frame 601 rotates and moves, the lubricating oil rack 605 moves accordingly, thereby causing the arc surface of the semicircular block 705 to contact the protruding thread on the outer wall of the adjusting threaded rod 305. The semicircular block 705 is squeezed away from the inside of the oil outlet 610 by the thread, and at the same time, the receiving rod 704 squeezes the connecting spring 703, so that the lubricating oil in the oil storage tank 606 flows to the outer wall of the adjusting threaded rod 305. When the non-contact surface of the semicircular block 705 is no longer in contact with the thread, the reset of the connecting spring 703 causes the semicircular block 705 to block the inner wall of the oil outlet 610 again.

[0047] S3: While the adjusting threaded rod 305 is inserted into the left insertion hole 302 and the right insertion hole 304, one end of the adjusting threaded rod 305 presses against the inclined surface of the trapezoidal limiting block 804. The trapezoidal limiting block 804 is pressed against the compression spring 803, causing the trapezoidal limiting block 804 to enter the interior of the anti-slip frame 801. As the adjusting threaded rod 305 moves, the inclined groove 307 moves to above the trapezoidal limiting block 804. The reset of the compression spring 803 causes the trapezoidal limiting block 804 to move upward, so that the top of the trapezoidal limiting block 804 is stuck inside the inclined groove 307, thereby stabilizing the adjusting threaded rod 305.

[0048] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Those skilled in the art can modify or improve the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. An adjustable unloading device for installing prefabricated steel structure frames, characterized in that: The device includes a supporting trapezoidal block mechanism (1), an adjusting trapezoidal block mechanism (3), and an adjusting limiting mechanism (2). The adjusting limiting mechanism (2) is fixed to the supporting trapezoidal block mechanism (1) at both ends. The two sides of the supporting trapezoidal block mechanism (1) are respectively fixedly connected to one side of the adjusting limiting mechanism (2). The adjusting trapezoidal block mechanism (3) includes a left trapezoidal block (301), a left insertion hole (302), a right trapezoidal block (303), a right insertion hole (304), an adjusting threaded rod (305), and a washer (306). The adjusting threaded rod (305) is located on the left trapezoidal block (301). An adjustment mechanism (4) is provided on the outer side of the right trapezoidal block (303). The adjustment mechanism (4) is threadedly connected to the adjustment threaded rod (305). A stabilizing mechanism (5) is fixedly connected to the adjustment mechanism (4). One end of the outer side of the adjustment mechanism (4) is fixedly connected to the cleaning mechanism (6). A sealing mechanism (7) is fixedly connected to the inner wall of the cleaning mechanism (6). The supporting trapezoidal block mechanism (1) includes: a bottom trapezoidal block (101) and a top trapezoidal block (103) arranged symmetrically. The top end of the bottom trapezoidal block (101) is fixedly connected to the bottom end of the anti-slip mechanism (8). The adjustment mechanism (4) includes an adjustment threaded sleeve (401), an adjustment threaded groove (402), a storage groove (403), a fixing plate (404), a rotating rod (405), and a handle (406). The inner wall of the adjustment threaded sleeve (401) is provided with an adjustment threaded groove (402), and the adjustment threaded groove (402) is threadedly connected to the adjustment threaded rod (305). The outer wall of the adjustment threaded sleeve (401) is provided with multiple storage grooves (403), and the inner wall of the storage groove (403) is fixedly connected to one end of the fixing plate (404). Both sides of the fixing plate (404) are provided with rotating shafts, and one end of the rotating rod (405) is provided with a rotating opening. Both sides of the fixing plate (404) are rotatably connected to the inner wall of the rotating opening through the rotating shafts. The other end of the rotating rod (405) is fixedly connected to the handle (406). The interior of the storage groove (403) can accommodate the rotating rod (405) and the handle (406).

2. The adjustable unloading device for installing prefabricated steel structure frames according to claim 1, characterized in that: The bottom trapezoidal block (101) is fixed with a first limiting plate (102) on both sides, and the top trapezoidal block (103) is fixed with a second limiting plate (104) on both sides.

3. An adjustable unloading device for installing prefabricated steel structure frames according to claim 2, characterized in that: The adjusting limiting mechanism (2) includes a first limiting sleeve (201), a second limiting sleeve (202), a limiting threaded rod (203), and a limiting threaded sleeve (204). One side of the first limiting sleeve (201) is fixedly connected to both sides of the first limiting plate (102), and one side of the second limiting sleeve (202) is fixedly connected to both sides of the second limiting plate (104). Both the first limiting sleeve (201) and the second limiting sleeve (202) are movably connected to the outer wall of the limiting threaded rod (203). The outer wall of the limiting threaded rod (203) is threadedly connected to the inner wall of the limiting threaded sleeve (204).

4. An adjustable unloading device for installing prefabricated steel structure frames according to claim 3, characterized in that: The left trapezoidal block (301) has a left insertion hole (302) in the center, and the right trapezoidal block (303) has a right insertion hole (304) in the center. The bottom inclined surfaces of the left trapezoidal block (301) and the right trapezoidal block (303) are in movable contact with the top inclined surface of the bottom trapezoidal block (101). The top inclined surfaces of the left trapezoidal block (301) and the right trapezoidal block (303) are in movable contact with the bottom inclined surface of the top trapezoidal block (103). The inner walls of the left insertion hole (302) and the right insertion hole (304) are movably connected to the outer wall of the adjusting threaded rod (305). A gasket (306) is provided on the outer side of the left trapezoidal block (301) and the right trapezoidal block (303). An inclined groove (307) is provided at the bottom of the outer wall of the adjusting threaded rod (305).

5. An adjustable unloading device for installing prefabricated steel structure frames according to claim 4, characterized in that: The stabilizing mechanism (5) includes a fixing block (501), a spring groove (502), a reset spring (503), a clamping block (504), and a clamping groove (505). The stabilizing mechanism (5) is fixed in the receiving groove (403). One side of the fixing block (501) is fixedly connected to the inner wall of the receiving groove (403). The other side of the fixing block (501) has a spring groove (502). The bottom of the spring groove (502) is fixedly connected to one end of the reset spring (503). The other end of the reset spring (503) is fixedly connected to one side of the clamping block (504). The other side of the clamping block (504) has a clamping groove (505). The inner wall of the clamping groove (505) is in contact with the outer wall of the rotating rod (405). The side of the clamping block (504) away from the reset spring (503) is set as an inclined surface.

6. An adjustable unloading device for installing prefabricated steel structure frames according to claim 5, characterized in that: The cleaning mechanism (6) includes a movable frame (601), a hollow groove (602), a circular cleaning brush (603), a fixed groove (604), a lubricating oil rack (605), an oil reservoir (606), an oil inlet (607), a sealing block (608), an inclined block (609), and an oil outlet (610). One end of the movable frame (601) is fixedly connected to one end of the adjusting threaded sleeve (401), and a hollow groove (602) is provided inside the movable frame (601). The inner wall of the hollow groove (602) is fixedly connected to the outer wall of the circular cleaning brush (603), and the hollow groove... A fixing groove (604) is provided at the top of (602), a lubricating oil rack (605) is fixed in the fixing groove (604), and an oil storage tank (606) is provided inside the lubricating oil rack (605). An oil inlet (607) is provided at the top of the oil storage tank (606), and an oil outlet (610) is provided at the bottom. The inner wall of the oil inlet (607) is movably connected to the outer wall of the sealing block (608). An inclined block (609) is horizontally fixed in the oil storage tank (606). The cleaning surface of the hollow groove (602) is in contact with the outer wall of the adjusting threaded rod (305).

7. An adjustable unloading device for installing prefabricated steel structure frames according to claim 6, characterized in that: The sealing mechanism (7) includes a support block (701), a moving groove (702), a connecting spring (703), a receiving rod (704), and a semi-circular block (705). The sealing mechanism (7) is fixed inside the oil storage tank (606). One end of the support block (701) has the moving groove (702). One end of the connecting spring (703) is fixedly connected to the bottom of the moving groove (702), and the other end is fixedly connected to one end of the receiving rod (704). The other end of the receiving rod (704) is fixedly connected to the top of the semi-circular block (705). The outer wall of the semi-circular block (705) is movably connected to the inner wall of the oil drain port (610). The bottom end of the semi-circular block (705) is movably abutted against the protruding thread on the outer wall of the adjusting threaded rod (305).

8. An adjustable unloading device for installing prefabricated steel structure frames according to claim 7, characterized in that: The anti-slip mechanism (8) includes an anti-slip frame (801), a connecting groove (802), a compression spring (803), and a trapezoidal limiting block (804). The bottom end of the anti-slip frame (801) is fixedly connected to the top end of the bottom trapezoidal block (101). A connecting groove (802) is provided on one side of the anti-slip frame (801). One end of the compression spring (803) is fixedly connected to the bottom of the connecting groove (802). The other end of the compression spring (803) is fixedly connected to the bottom end of the trapezoidal limiting block (804). The top end of the trapezoidal limiting block (804) cooperates with the inclined groove (307). The top outer wall of the trapezoidal limiting block (804) is movably connected to the inner wall of the inclined groove (307).

9. A construction method for an adjustable unloading device for installing a prefabricated steel structure frame according to claim 8, comprising the following steps: S1: Place the left trapezoidal block (301) and the right trapezoidal block (303) above the bottom trapezoidal block (101), and place the top trapezoidal block (103) above the left trapezoidal block (301) and the right trapezoidal block (303). First, place the limiting threaded rod (203) inside the first limiting sleeve (201) and the second limiting sleeve (202). Then, put the limiting threaded sleeve (204) on the outer wall of the limiting threaded rod (203) to limit the limiting threaded rod (203). Finally, insert the adjusting threaded rod (305) into the left insertion hole (302). Inside the right insertion hole (304), the adjusting threaded sleeve (401) is fitted onto the outer wall of the adjusting threaded rod (305) through the adjusting threaded groove (402). The handle (406) is rotated by hand. The rotation of the handle (406) causes the adjusting threaded sleeve (401) to rotate, and then moves along the outer wall of the adjusting threaded rod (305) through the adjusting threaded groove (402). This moves the left trapezoidal block (301) and the right trapezoidal block (303) respectively through the shim (306), thereby adjusting the left trapezoidal block (301) and the right trapezoidal block (303). After the position adjustment of the block (303) is completed, the handle (406) is flipped to drive the rotating rod (405) to rotate through the fixed plate (404). When the rotating rod (405) rotates, the outer wall of the rotating rod (405) presses against the inner wall of the clamping groove (505), thereby pressing the clamping block (504). The clamping block (504) is pressed, which in turn presses against the return spring (503), thereby allowing the clamping blocks (504) to expand and provide space for the rotating rod (405) to rotate. As a result, the handle (406) rotates. The rod (405) is flipped into the storage groove (403) to store the handle (406). When the handle (406) needs to be unfolded, the handle (406) is flipped out from the inner wall of the storage groove (403), and the outer wall of the rotating rod (405) is pressed against the inclined surface of the clamping block (504) so ​​that the rotating rod (405) enters the clamping groove (505). The reset of the return spring (503) drives the clamping block (504) to clamp the rotating rod (405), thereby stabilizing the handle (406). S2: While the adjusting threaded sleeve (401) rotates and moves, the circular cleaning brush (603) moves along the outer wall of the adjusting threaded rod (305), thereby cleaning the outer wall of the adjusting threaded rod (305). Lubricating oil is injected into the lubricating oil holder (605) through the oil inlet (607). As the moving frame (601) rotates and moves, the lubricating oil holder (605) moves accordingly, thereby causing the arc-shaped surface of the semicircular block (705) to contact the adjusting threaded rod (305). 05) The protruding thread on the outer wall makes the semicircular block (705) squeezed away from the inside of the oil drain (610) by the thread, and at the same time, it drives the receiving rod (704) to squeeze the connecting spring (703), so that the lubricating oil inside the oil reservoir (606) flows to the outer wall of the adjusting thread rod (305). When the non-contact surface of the semicircular block (705) is not in contact with the thread, the reset of the connecting spring (703) drives the semicircular block (705) to block the inner wall of the oil drain (610) again. S3: While the adjusting threaded rod (305) is inserted into the left insertion hole (302) and the right insertion hole (304), one end of the adjusting threaded rod (305) presses against the inclined surface of the trapezoidal limit block (804). The trapezoidal limit block (804) is pressed against the compression spring (803), causing the trapezoidal limit block (804) to enter the interior of the anti-slip frame (801). As the adjusting threaded rod (305) moves, the inclined groove (307) moves to the top of the trapezoidal limit block (804). The reset of the compression spring (803) causes the trapezoidal limit block (804) to move upward, so that the top of the trapezoidal limit block (804) is stuck inside the inclined groove (307), thereby stabilizing the adjusting threaded rod (305).

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