Prefabricated component lifting equipment

Abstract

The present invention discloses a prefabricated component hoisting device, which relates to the field of prefabricated component hoisting, including a center seat, the left and right sides of the center seat are connected with a transverse clamping mechanism, the front and rear sides of the center seat are connected with a longitudinal clamping mechanism, a hinge is connected between the top of the longitudinal clamping mechanism and the center seat, and two sides of the two longitudinal clamping mechanisms away from each other are installed with a fixed seat, the number of the fixed seats is two, and they are arranged symmetrically relative to the longitudinal clamping mechanism, and a movable block is arranged between the two fixed seats. By arranging a support frame and a support plate, the present invention can achieve the effect of forming a stable triangular area on both sides of the concrete slab when the concrete slab is hoisted to the top of the embedded steel bars, so as to achieve the effect of supporting the concrete slab to keep the concrete slab stable when falling, and avoid the concrete slab from shaking and colliding with the workers on both sides during hoisting; by arranging a positioning plate, the effect of auxiliary docking of the concrete slab and the steel bars can be achieved.

Description

Technical Field

[0001] The invention relates to the technical field of prefabricated component hoisting, in particular to prefabricated component hoisting equipment. Background Art

[0002] Prefabricated components refer to steel, wood or concrete components that are prefabricated in a factory or on-site according to design specifications. In the current construction process, in order to speed up the construction progress and increase the convenience of engineering construction, prefabricated concrete components are usually used for construction, including concrete columns, concrete slabs and concrete beams. The bottom of the concrete slab is usually opened with a hole, and it is lifted to a high place by a crane. The holes at the bottom of the concrete slab are connected to the pre-buried steel bars on the top of the building to ensure the installation position of the slab, and then cast-in-place is carried out.

[0003] During the process of hoisting and connecting the concrete slab to the steel bars, it is easily shaken by inertia when suspended in the air. The existing hoisting equipment lacks stable support points to keep the concrete slab falling steadily, and can only rely on manual support on both sides. There are problems such as left and right shaking that can easily injure workers and difficulty in accurately connecting with the steel bars. Summary of the invention

[0004] The purpose of the present invention is to provide a prefabricated component lifting device to solve the problem that the lifting device has poor stability and is difficult to accurately dock due to shaking during lifting.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a prefabricated component hoisting equipment, comprising a center seat, the left and right sides of the center seat are connected to a transverse clamping mechanism, the front and rear sides of the center seat are connected to a longitudinal clamping mechanism, a hinge is connected between the top of the longitudinal clamping mechanism and the center seat, a fixed seat is installed on one side of the longitudinal clamping mechanism, a movable block is arranged between the two fixed seats, a turning frame is connected to the middle of the movable block, a supporting frame is connected to the bottom of the turning frame, a positioning plate is also connected to the bottom of the turning frame, a supporting plate is connected between the supporting frame and the turning frame, and a locking mechanism is installed between the top of the longitudinal clamping mechanism and the center seat;

[0006] The transverse clamping mechanism and the longitudinal clamping mechanism include a connecting plate, a clamping plate is arranged on the side of the connecting plate away from the center seat, a fixing plate is connected to the side wall of the connecting plate close to the clamping plate, a telescopic groove is opened in the middle of the clamping plate, and there are two transverse clamping mechanisms and two longitudinal clamping mechanisms, which are arranged symmetrically left and right and front and back relative to the center seat.

[0007] Preferably, the fixing plate is movably connected to the clamping plate via a telescopic groove, the side of the clamping plate away from the connecting plate is bent at a right angle, the connecting plate of the transverse clamping mechanism is welded and fixed to the left and right side walls of the center seat, the connecting plate of the longitudinal clamping mechanism is hinged to the front and rear side walls of the center seat via hinges, and a lifting ring is installed on the upper surface of the connecting plate of the transverse clamping mechanism.

[0008] Preferably, the front side wall of the clamping plate is connected to a first rectangular block, the front side wall of the connecting plate is connected to a second rectangular block, a screw hole is opened through the middle of the second rectangular block, a screw rod is arranged through the screw hole, a bearing is installed between the screw rod and the first rectangular block, a knob is connected to the end of the screw rod away from the bearing, the screw rod is rotatably connected to the first rectangular block via the bearing, and the screw rod passes through the screw hole to form a threaded connection with the second rectangular block.

[0009] Preferably, a sliding groove is provided on the side where the two fixed seats are close to each other, and sliding blocks are integrally connected to the left and right sides of the movable block. A groove is provided on the front side of the movable block, and a first pin shaft is provided in the middle of the groove. The fixed seat is welded and fixed to the front surface of the clamping plate of the longitudinal clamping mechanism, and the sliding block is inserted into the sliding groove to form a sliding connection with the fixed seat, and the left and right sides of the movable block slide up and down relative to the fixed seat.

[0010] Preferably, the top of the flip frame is integrally connected with a first hinge block, the front side of the flip frame is connected with a connecting block, the flip frame is provided with a first rectangular groove, a second pin is provided at the bottom of the first rectangular groove, a movable groove is provided at the bottom of the connecting block, a third pin is provided inside the movable groove, the first pin passes through the first hinge block, and the top of the flip frame is rotatably connected with the movable block via the first hinge block and the first pin.

[0011] Preferably, the rear side wall of the support frame is integrally connected with a second hinge block, a second rectangular groove is opened through the middle of the support frame, and the upper surfaces of the left and right side walls of the support frame are opened with card slots. The support frame is rotatably connected with the flip frame via the second hinge block and the second pin shaft, and the support frame is movably connected with the first rectangular groove after being flipped.

[0012] Preferably, the front side wall of the positioning plate is integrally connected with the third hinge block, the rear side wall of the positioning plate is connected with a magnetic block, a clamping edge is provided on the side of the magnetic block away from the positioning plate, a positioning groove is penetrated through the magnetic block, one side of the positioning groove extends to the rear side wall of the magnetic block and an opening is provided, the second pin shaft penetrates the second hinge block and the third hinge block in sequence, the support frame and the positioning plate are rotatably connected to the flip frame through the second pin shaft, and the positioning plate is movably connected to the second rectangular groove after flipping.

[0013] Preferably, the top of the support plate is integrally connected with a fourth hinge block, the third pin shaft passes through the fourth hinge block, the top of the support plate is rotatably connected to the connecting block via the fourth hinge block and the third pin shaft, and the bottom of the support plate is movably connected to the slot.

[0014] Preferably, rubber blocks are provided on the inner walls on the left and right sides of the first rectangular groove and the second rectangular groove and on the sides of the two fixing seats close to each other, and the rubber blocks are in the shape of a truncated cone made of rubber material.

[0015] Preferably, the locking mechanism includes a fixing ring, a through hole is formed through the bottom of the fixing ring, an arc groove is formed on the top of the connecting plate of the longitudinal clamping mechanism, a threaded groove is formed on the front side of the arc groove, a slot is formed on the rear side of the arc groove, a top screw is formed through the threaded groove, the fixing ring is fixedly connected to the front and rear side walls of the center seat, the bottom of the fixing ring is movably connected to the connecting plate via the arc groove, the top screw is threadedly connected to the threaded groove, and the top screw passes through the fixing ring through the through hole and is inserted into the slot.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. When the present application is used, the left and right sides of the concrete slab are clamped at the top of the concrete slab by a transverse clamping mechanism, and the bottom of the concrete slab is clamped at the front and rear sides of the concrete slab by a longitudinal clamping mechanism. When the crane hoist is hoisted, the hoist is connected to the lifting ring on the connecting plate, so that the clamping plate can stably clamp the concrete slab for transfer during the crane hoisting, avoiding the problem of loose steel bars caused by the traditional concrete slab using a hoist to connect the steel bars on both sides of the concrete slab for hoisting.

[0018] 2. The present application is provided with a screw, a clamping plate and a telescopic groove. The screw is driven to rotate by a knob. The screw rotates in the screw hole to drive the first rectangular block and the second rectangular block to move toward each other. The first rectangular block and the second rectangular block drive the connecting plate and the clamping plate to move closer to or away from each other, so that the fixed plate can be extended and retracted in the telescopic groove, and the length of the horizontal clamping mechanism and the longitudinal clamping mechanism can be adjusted. It can be used for clamping and lifting concrete slabs of different sizes.

[0019] 3. In the present application, when the concrete slab is hoisted to the top of the embedded steel bars, the flip frame is turned from between the two fixed seats to below the fixed seats by rotating it around the first pin shaft, and then the support frame and the positioning plate are turned around the second pin shaft to turn the support frame out of the first rectangular groove and placed on the ground, and then the support plate is turned around the third pin shaft to insert the bottom of the support plate into the slot. At this time, the support plate, the support frame and the flip frame form a stable triangular area on both sides of the concrete slab, thereby supporting the concrete slab and keeping the concrete slab stable when falling, and preventing the concrete slab from shaking and colliding with the workers on both sides during hoisting.

[0020] 4. In the present application, when the positioning plate and the support plate support the concrete slab, the positioning plate is flipped from the second rectangular groove and placed under the concrete slab, the two positioning plates on the front and rear sides of the concrete slab are engaged through the clamping edges, and the steel bars on the ground are inserted into the positioning grooves from the openings. The two positioning plates are connected by magnetic blocks so that the positioning plates and the embedded steel bars remain relatively still. As the crane wire rope is extended, the concrete slab gradually moves downward, and the clamping plate drives the fixed seat to move downward relative to the movable block, causing the concrete slab to fall vertically until the embedded steel bars are inserted into the holes at the bottom of the concrete slab, thereby achieving the effect of auxiliary docking of the concrete slab and the steel bars.

[0021] 5. The present application provides a flip frame, and the second pin shaft is passed through the second hinge block and the third hinge block in sequence, so that the support frame and the positioning plate are rotatably connected to the flip frame through the second pin shaft, and the positioning plate can be inserted into the inner side of the support frame around the second pin shaft, and the support frame can carry the positioning plate and rotate around the second pin shaft to be inserted into the flip frame, and the flip frame can be flipped upward around the first pin shaft and inserted between the two fixed seats, thereby realizing the folding and storage function of the flip frame, the support frame, the positioning plate and the support plate.

[0022] 6. The present application is provided with a locking mechanism, and the top of the connecting plate of the longitudinal clamping mechanism is hinged to the center seat through a hinge, so that the connecting plate can be rotated forward and backward relative to the center seat. After the steel bar and the concrete slab are connected, the top screw is rotated out of the threaded groove to cancel the plug-in effect of the top screw and the through hole. At this time, the connecting plate and the clamping plate can be pulled around the hinge to rotate relative to the concrete slab toward the front and rear sides, and the clamping plate drives the two positioning plates to separate, so that the concrete slab falls on the top of the building and is completely connected with the embedded steel bar, thereby achieving the effect of quick disassembly of the clamping plate and the positioning plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the side cutaway structure of the present invention;

[0025] Figure 3 It is a schematic diagram of the structure of the flip rack of the present invention in the storage state;

[0026] Figure 4 It is a schematic diagram of the structure of the longitudinal clamping mechanism of the present invention;

[0027] Figure 5 It is a schematic diagram of the connection structure of the turnover frame of the present invention;

[0028] Figure 6 It is an exploded view of the turning frame connection structure of the present invention;

[0029] Figure 7 For the present invention Figure 2 Enlarged schematic diagram of the structure of part A in the middle.

[0030] In the figure: 1, center seat; 2, horizontal clamping mechanism; 3, longitudinal clamping mechanism; 31, connecting plate; 32, fixing plate; 33, clamping plate; 34, telescopic slot; 35, first rectangular block; 36, bearing; 37, second rectangular block; 38, screw hole; 39, screw rod; 310, knob; 4, hinge; 5, fixing seat; 51, slide slot; 6, movable block; 61, slider; 62, groove; 63, first pin shaft; 7, flip frame; 71, first hinge block; 72, connecting block; 73, first rectangular slot; 74 , second pin shaft; 75, movable groove; 76, third pin shaft; 8, support frame; 81, second hinge block; 82, clamping groove; 83, second rectangular groove; 9, positioning plate; 91, third hinge block; 92, magnetic block; 93, clamping edge; 94, positioning groove; 95, opening; 10, support plate; 101, fourth hinge block; 11, rubber block; 12, locking mechanism; 121, fixing ring; 122, arc groove; 123, through hole; 124, threaded groove; 125, slot; 126, top screw; 13, lifting ring. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] like Figures 1 to 7 As shown, the prefabricated component lifting equipment of this embodiment includes a center seat 1, which is in the shape of a rectangular plate. The left and right sides of the center seat 1 are connected with horizontal clamping mechanisms 2 for clamping the two sides of the concrete slab. The front and rear sides of the center seat 1 are connected with longitudinal clamping mechanisms 3 for clamping the bottom of the concrete slab. A hinge 4 is connected between the top of the longitudinal clamping mechanism 3 and the center seat 1. Two fixed seats 5 are installed on one side of the longitudinal clamping mechanism 3. The fixed seats 5 are arranged symmetrically with respect to the longitudinal clamping mechanism 3. A rectangular movable block 6 is arranged between the two fixed seats 5. The middle of the movable block 6 is connected to the A turning frame 7 is connected, and a support frame 8 is connected to the bottom of the turning frame 7, which is used to tilt the support plate 10. A positioning plate 9 is also connected to the bottom of the turning frame 7 to assist the butt joint between the concrete slab and the embedded steel bars. A support plate 10 is connected between the support frame 8 and the turning frame 7 to support the concrete slab. A locking mechanism 12 is installed between the top of the longitudinal clamping mechanism 3 and the center seat 1 to lock the longitudinal clamping mechanism 3. In the locked state, the longitudinal clamping mechanism 3 is perpendicular to the center seat 1. In the unlocked state, the longitudinal clamping mechanism 3 can rotate relative to the center seat 1;

[0033] Both the transverse clamping mechanism 2 and the longitudinal clamping mechanism 3 include a connecting plate 31. A clamping plate 33 is provided on the side of the connecting plate 31 away from the center seat 1. The clamping plate 33 has the same width as the connecting plate 31. A fixing plate 32 is connected to the side wall of the connecting plate 31 close to the clamping plate 33. A telescopic groove 34 is provided in the middle of the clamping plate 33. The width of the fixing plate 32 matches the width of the inner wall of the telescopic groove 34. There are two transverse clamping mechanisms 2 and two longitudinal clamping mechanisms 3, which are arranged symmetrically left and right and front and back relative to the center seat 1.

[0034] Specifically, the fixed plate 32 is movably connected to the clamping plate 33 via the telescopic groove 34. The fixed plate 32 is extended and retracted in the telescopic groove 34 to adjust the distance between the connecting plate 31 and the clamping plate 33, thereby adjusting the length of the transverse clamping mechanism 2 and the longitudinal clamping mechanism 3. The side of the clamping plate 33 away from the connecting plate 31 is bent at a right angle. The connecting plate 31 of the transverse clamping mechanism 2 is welded and fixed to the left and right side walls of the center seat 1. The connecting plate 31 of the longitudinal clamping mechanism 3 is hinged to the front and rear side walls of the center seat 1 via the hinge 4. A lifting ring 13 is installed on the upper surface of the connecting plate 31 of the transverse clamping mechanism 2. When the crane hoist is hoisted, the hoist is connected to the lifting ring 13 on the connecting plate 31.

[0035] Furthermore, the front side wall of the clamping plate 33 is connected to the first rectangular block 35, and the front side wall of the connecting plate 31 is connected to the second rectangular block 37. A screw hole 38 is opened in the middle of the second rectangular block 37, and a screw rod 39 is arranged inside the screw hole 38. The outer diameter of the screw rod 39 is adapted to the inner diameter of the screw hole 38. A bearing 36 is installed between the screw rod 39 and the first rectangular block 35. The end of the screw rod 39 away from the bearing 36 is connected to a knob 310. The screw rod 39 is rotatably connected to the first rectangular block 35 through the bearing 36. The screw rod 39 passes through the screw hole 38 and forms a threaded connection with the second rectangular block 37. 310 drives the screw 39 to rotate, and the screw 39 rotates in the screw hole 38 to drive the first rectangular block 35 and the second rectangular block 37 to move toward each other, and the first rectangular block 35 and the second rectangular block 37 drive the connecting plate 31 and the clamping plate 33 to move closer to or away from each other, so that the fixed plate 32 can be expanded and contracted in the expansion groove 34, and the length of the horizontal clamping mechanism 2 and the longitudinal clamping mechanism 3 can be adjusted. It can be used for clamping and lifting concrete slabs of different sizes, wherein the screw hole 38 in the horizontal clamping mechanism 2 is opened in the middle of the first rectangular block 35, and the bearing 36 is installed in the middle of the second rectangular block 37 to avoid obstruction between the screw 39 and the lifting ring 13.

[0036] Further, sliding grooves 51 are formed on one side of the two fixed seats 5 close to each other. Sliders 61 are integrally connected to the left and right sides of the movable block 6. The cross-sections of the sliders 61 and the sliding grooves 51 are both rectangular. The sliders 61 are inserted into the interior of the sliding grooves 51. A groove 62 is formed on the front side of the movable block 6. A first pin shaft 63 is arranged in the middle of the groove 62. The fixed seats 5 are welded and fixed on the surface of the clamping plate 33 of the longitudinal clamping mechanism 3. The sliders 61 are inserted into the interior of the sliding grooves 51 to form a sliding connection with the fixed seats 5. The left and right sides of the movable block 6 slide up and down relative to the fixed seats 5. When the turning frame 7 is stored inside the fixed seats 5 and when it is turned downward, the sliders 61 are both in the lowest position inside the sliding grooves 51. When the support frame 8 and the support plate 10 are extended to support the concrete slab, during the process of the concrete slab moving downward relative to the support plate 10, the fixed seats 5 are driven to move downward relative to the movable block 6. At this time, the sliders 61 gradually move to the upper position inside the sliding grooves 51.

[0037] Further, a first hinge block 71 is integrally connected to the top of the turning frame 7. A connecting block 72 is connected to the front side of the turning frame 7. A first rectangular groove 73 is formed through the turning frame 7. The middle part of the turning frame 7 is provided with the first rectangular groove 73 to form a rectangular frame shape. A second pin shaft 74 is arranged at the lowest position inside the first rectangular groove 73. A movable groove 75 is formed at the bottom of the connecting block 72. A third pin shaft 76 is arranged inside the movable groove 75. The first pin shaft 63 penetrates through the first hinge block 71. The width dimension of the turning frame 7 is adapted to the width dimension of the inner wall of the groove 62 and the distance between the two fixed seats 5. The top of the turning frame 7 is rotationally connected to the movable block 6 through the first hinge block 71 and the first pin shaft 63. When the support function and the positioning auxiliary function are not used, the turning frame 7 carrying the support plate 10, the support frame 8 and the positioning plate 9 is stored between the two fixed seats 5, so as to avoid excessive space occupation after expansion and affect hoisting.

[0038] Further, a second hinge block 81 is integrally connected to the rear side of the support frame 8. A second rectangular groove 83 is formed through the middle part of the support frame 8. The middle part of the support frame 8 is provided with the second rectangular groove 83 to form a U shape. Clamping grooves 82 are formed on the upper surfaces of the left and right side walls of the support frame 8. The support frame 8 is rotationally connected to the turning frame 7 through the second hinge block 81 and the second pin shaft 74. The width dimension of the support frame 8 is adapted to the width dimension of the inner wall of the first rectangular groove 73. After the support frame 8 is turned over, it is movably inserted into the first rectangular groove 73. By upwardly拨动 the support frame 8, the support frame 8 is rotated around the second pin shaft 74, so that the support frame 8 is turned out of the first rectangular groove 73 and placed on the ground.

[0039] Furthermore, a third hinge block 91 is integrally connected to the front side wall of the positioning plate 9, and a magnetic block 92 is connected to the rear side wall of the positioning plate 9. The magnetic block 92 is a strong magnet, and a clamping edge 93 is provided on the side of the magnetic block 92 away from the positioning plate 9. The directions of the clamping edges 93 on the two magnetic blocks 92 are opposite, so that the two magnetic blocks 92 are engaged through the clamping edge 93 when they are in contact, and the magnetic attraction of the contact surfaces of the two magnetic blocks 92 is realized, so that the magnetic adsorption effect between the two positioning plates 9 is realized, and a positioning groove 94 is provided through the magnetic block 92, and the positioning groove 94 is U-shaped, and the inner diameter size of the positioning groove 94 is adapted to the outer diameter size of the embedded steel bar, and one side of the positioning groove 94 extends to the rear side wall of the magnetic block 92. Opening 95, opening 95 is V-shaped and connected with positioning groove 94, which is convenient for inserting embedded steel bars into positioning groove 94 through opening 95. The design of opening 95 can make the insertion of embedded steel bars into positioning groove 94 smoother. The second pin shaft 74 passes through the second hinge block 81 and the third hinge block 91 in sequence. The support frame 8 and the positioning plate 9 are both rotatably connected with the flip frame 7 through the second pin shaft 74. The width dimension of the positioning plate 9 is adapted to the width dimension of the inner wall of the second rectangular groove 83. After the positioning plate 9 is flipped, it is movably plugged into the second rectangular groove 83. The positioning plate 9 is turned to rotate around the second pin shaft 74, and the positioning plate 9 is flipped from the second rectangular groove 83 and placed under the concrete slab.

[0040] Furthermore, a fourth hinge block 101 is integrally connected to the top of the support plate 10, and the third pin shaft 76 passes through the fourth hinge block 101. The top of the support plate 10 is rotatably connected to the connecting block 72 via the fourth hinge block 101 and the third pin shaft 76. The bottom of the support plate 10 is movably connected to the slot 82. The support plate 10 is rotated around the third pin shaft 76 to insert the bottom of the support plate 10 into the slot 82. At this time, the support plate 10 and the support frame 8 and the flip frame 7 form stable triangular areas on both sides of the concrete slab, thereby achieving the effect of supporting the concrete slab and keeping the concrete slab stable when falling.

[0041] Furthermore, rubber blocks 11 are provided on the inner walls on the left and right sides of the first rectangular groove 73 and the second rectangular groove 83 and on the side where the two fixing seats 5 are close to each other. The rubber blocks 11 are truncated cone-shaped and made of rubber material. During the process of the positioning plate 9 being flipped and stored and inserted into the second rectangular groove 83, the support frame 8 being flipped and stored and inserted into the first rectangular groove 73, and the flip frame 7 being flipped and stored and inserted between the two fixing seats 5, the two side walls of the positioning plate 9, the support frame 8 and the flip frame 7 squeeze the rubber blocks 11, so that the rubber blocks 11 are compressed to generate a rebound force, and the friction force of the rubber blocks 11 is used to maintain the stable storage performance of the positioning plate 9, the support frame 8 and the flip frame 7.

[0042] Furthermore, the locking mechanism 12 includes a fixing ring 121, a through hole 123 is formed through the bottom of the fixing ring 121, an arc groove 122 is formed on the top of the connecting plate 31 of the longitudinal clamping mechanism 3, the centers of the fixing ring 121 and the arc groove 122 are coaxially arranged with the center of the hinge 4, a thread groove 124 is formed on the front side of the arc groove 122, a slot 125 is formed on the rear side of the arc groove 122, a top screw 126 is formed through the inside of the thread groove 124, and the outer diameter of the top screw 126 is adapted to the inner diameter of the thread groove 124, the through hole 123 and the slot 125, the fixing ring 121 is fan-shaped, and the fixing ring 12 1 is fixedly connected to the front and rear side walls of the center seat 1, the bottom of the fixing ring 121 is movably plugged with the connecting plate 31 through the arc groove 122, the top screw 126 is threadedly connected with the thread groove 124, and the top screw 126 passes through the fixing ring 121 through the through hole 123 and is inserted into the slot 125. By rotating the top screw 126, the top screw 126 is screwed into the thread groove 124 until the top screw 126 passes through the through hole 123 and is inserted into the slot 125. The fixing ring 121 is restricted from moving in the arc groove 122 by the top screw 126, and the longitudinal clamping mechanism 3 is limited, so that the longitudinal clamping mechanism 3 and the center seat 1 are kept perpendicular to each other during the hoisting process.

[0043] The method of using this embodiment is as follows: when the user actually uses the lifting equipment to lift and transport the precast concrete slab, first connect the lifting device of the crane to the lifting ring 13, place the center seat 1 in the middle position of the upper surface of the concrete slab, adjust the length of the horizontal clamping mechanism 2 according to the length of the concrete slab, drive the screw 39 to rotate through the knob 310, and the screw 39 rotates in the screw hole 38 to drive the first rectangular block 35 and the second rectangular block 37 to move toward each other, and the first rectangular block 35 and the second rectangular block 37 drive the connecting plate 31 and the clamping plate 33 to move closer to or away from each other, so that the fixing plate 32 is retracted in the telescopic groove 34 until the clamping plate 33 is clamped on both sides of the concrete slab, and then repeat the above operation to adjust the length of the longitudinal clamping mechanism 3 according to the height of the concrete slab. The length of the concrete slab is adjusted until the clamping plate 33 clamps the bottom of the concrete slab, and then the top screw 126 is rotated to screw the top screw 126 into the threaded groove 124 until the top screw 126 passes through the through hole 123 and is inserted into the slot 125. The top screw 126 limits the movement of the fixing ring 121 in the arc groove 122, limits the longitudinal clamping mechanism 3, keeps the longitudinal clamping mechanism 3 and the center seat 1 perpendicular to each other, and then uses a crane to pull the transverse clamping mechanism 2 upward through the sling, and the clamping plate 33 stably clamps the concrete slab for transfer. When the concrete slab moves to above the embedded steel bars, the staff moves the flip frame 7 around the first pin shaft 63 on both sides of the concrete slab to rotate, so that the flip frame 7 is flipped from between the two fixing seats 5 to below the fixing seat 5, and then the support frame 8 is moved around the second pin shaft 74 The first and second positioning plates 9 are rotated to make the support frame 8 turn out from the first rectangular groove 73 and place it on the ground, and then the positioning plate 9 is toggled to rotate around the second pin shaft 74, so that the positioning plate 9 is turned over from the second rectangular groove 83 and placed under the concrete slab, and the concrete slab is pushed to adjust the position of the positioning plate 9, so that the embedded steel bars are inserted into the positioning groove 94 from the opening 95, and the two positioning plates 9 on the front and rear sides of the concrete slab are meshed through the clamping edges 93, and the two positioning plates 9 are adsorbed and connected by the magnetic block 92. At the same time, the magnetic block 92 adsorbs the embedded steel bars to keep the positioning plate 9 and the embedded steel bars relatively still, and then the support plate 10 is toggled to rotate around the third pin shaft 76, so that the bottom of the support plate 10 is inserted into the clamping groove 82. At this time, the support plate 10, the support frame 8 and the flip frame 7 form a stable triangular area on both sides of the concrete slab. The concrete slab is supported. As the crane wire rope is extended, the concrete slab gradually moves downward, and the clamping plate 33 drives the fixed seat 5 to move downward relative to the movable block 6. The sliding groove 51 on one side of the fixed seat 5 guides the downward movement of the concrete slab. The concrete slab falls vertically until the embedded steel bars are inserted into the holes at the bottom of the concrete slab, completing the preliminary docking of the concrete slab and the embedded steel bars. Then, the top screw 126 is rotated to make it unscrewed from the thread groove 124, and the plug-in effect of the top screw 126 and the through hole 123 is cancelled. Then, the positioning plate 9, the support frame 8 and the support plate 10 are dialed to rotate and reset. Then, the clamping plates 33 are pulled on both sides of the concrete slab, so that the clamping plates 33 drive the connecting plates 31 to rotate relative to the center seat 1 through the fixed plate 32 through the hinge 4, so that the clamping plates 33 are taken out from the bottom of the concrete slab.Then the concrete slab continues to fall and completely connects with the embedded steel bars.

[0044] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A prefabricated component lifting device, comprising a center seat (1), characterized in that: The left and right sides of the center seat (1) are connected to transverse clamping mechanisms (2), the front and rear sides of the center seat (1) are connected to longitudinal clamping mechanisms (3), a hinge (4) is connected between the top of the longitudinal clamping mechanism (3) and the center seat (1), a fixed seat (5) is installed on one side of the longitudinal clamping mechanism (3), a movable block (6) is arranged between the two fixed seats (5), a turning frame (7) is connected to the middle of the movable block (6), a supporting frame (8) is connected to the bottom of the turning frame (7), a positioning plate (9) is also connected to the bottom of the turning frame (7), a supporting plate (10) is connected between the supporting frame (8) and the turning frame (7), the top of the longitudinal clamping mechanism (3) and the center seat (1) are connected to each other, and the movable block (6) is connected to the turning frame (7) at the middle of the turning frame (6). A locking mechanism (12) is installed between the center seat (1); the transverse clamping mechanism (2) and the longitudinal clamping mechanism (3) include a connecting plate (31); a clamping plate (33) is arranged on the side of the connecting plate (31) away from the center seat (1); a fixing plate (32) is connected to the side wall of the connecting plate (31) close to the clamping plate (33); a telescopic groove (34) is provided in the middle of the clamping plate (33); the transverse clamping mechanism (2) and the longitudinal clamping mechanism (3) are both two in number, and are respectively arranged symmetrically left and right and front and back relative to the center seat (1); a sliding groove (51) is provided on the side close to each other of the fixing seat (5); and sliding blocks (61) are integrally connected to the left and right sides of the movable block (6). The movable block (6) is provided with a groove (62) on the front side, and a first pin shaft (63) is provided in the middle of the groove (62). The fixed seat (5) is welded and fixed to the front side surface of the clamping plate (33) of the longitudinal clamping mechanism (3). The sliding block (61) is inserted into the sliding groove (51) to form a sliding connection with the fixed seat (5). The movable block (6) slides up and down relative to the fixed seat (5) on the left and right sides. The top of the flip frame (7) is integrally connected with a first hinge block (71), and the front side of the flip frame (7) is connected with a connecting block (72). A first rectangular groove (73) is provided through the flip frame (7), and a second pin shaft (74) is provided at the bottom of the first rectangular groove (73). The bottom of the connecting block (72) is provided with a second pin shaft (74). A movable groove (75) is provided, a third pin shaft (76) is provided inside the movable groove (75), the first pin shaft (63) passes through the first hinge block (71), and the top of the flip frame (7) is rotatably connected to the movable block (6) via the first hinge block (71) and the first pin shaft (63); the rear side wall of the support frame (8) is integrally connected to the second hinge block (81), a second rectangular groove (83) is penetrated through the middle of the support frame (8), and the upper surfaces of the left and right side walls of the support frame (8) are provided with clamping grooves (82), the support frame (8) is rotatably connected to the flip frame (7) via the second hinge block (81) and the second pin shaft (74), and the support frame (8) is movably plugged into the first rectangular groove (73) after flipping;The front side wall of the positioning plate (9) is integrally connected with a third hinge block (91), the rear side wall of the positioning plate (9) is connected with a magnetic block (92), a clamping edge (93) is provided on a side of the magnetic block (92) away from the positioning plate (9), a positioning groove (94) is provided through the magnetic block (92), one side of the positioning groove (94) extends to the rear side wall of the magnetic block (92) to provide an opening (95), the second pin shaft (74) passes through the second hinge block (81) and the third hinge block (91) in sequence, the support frame (8) and the positioning plate (9) are both rotatably connected to the flip frame (7) through the second pin shaft (74), and the positioning plate (9) is movably plugged into the second rectangular groove (83) after flipping. ; 2. The prefabricated component hoisting equipment according to claim 1, characterized in that: The fixing plate (32) is movably connected to the clamping plate (33) via the telescopic groove (34); the side of the clamping plate (33) away from the connecting plate (31) is bent at a right angle; the connecting plate (31) of the transverse clamping mechanism (2) is fixedly connected to the left and right sides of the center seat (1); the connecting plate (31) of the longitudinal clamping mechanism (3) is hinged to the front and rear side walls of the center seat (1) via hinges (4); and a lifting ring (13) is installed on the upper surface of the connecting plate (31) of the transverse clamping mechanism (2).

3. The prefabricated component hoisting equipment according to claim 1, characterized in that: The front side wall of the clamping plate (33) is connected to a first rectangular block (35), and the front side wall of the connecting plate (31) is connected to a second rectangular block (37). A screw hole (38) is provided through the middle of the second rectangular block (37), and a screw rod (39) is provided through the inside of the screw hole (38). A bearing (36) is installed between the screw rod (39) and the first rectangular block (35), and a knob (310) is connected to one end of the screw rod (39) away from the bearing (36). The screw rod (39) is rotatably connected to the first rectangular block (35) via the bearing (36), and the screw rod (39) passes through the screw hole (38) to form a threaded connection with the second rectangular block (37).

4. The prefabricated component hoisting equipment according to claim 1, characterized in that: The top of the support plate (10) is integrally connected with a fourth hinge block (101), the third pin shaft (76) passes through the fourth hinge block (101), the top of the support plate (10) is rotatably connected to the connection block (72) via the fourth hinge block (101) and the third pin shaft (76), and the bottom of the support plate (10) is movably plugged into the slot (82).

5. The prefabricated component hoisting equipment according to claim 1, characterized in that: Rubber blocks (11) are provided on the inner walls on the left and right sides of the first rectangular groove (73) and the second rectangular groove (83) and on the side where the two fixing seats (5) are close to each other. The rubber blocks (11) are in the shape of a truncated cone made of rubber material.

6. The prefabricated component hoisting equipment according to claim 1, characterized in that: The locking mechanism (12) comprises a fixing ring (121), a through hole (123) is formed through the bottom of the fixing ring (121), an arc groove (122) is formed on the top of the connecting plate (31) of the longitudinal clamping mechanism (3), a thread groove (124) is formed on the front side of the arc groove (122), a slot (125) is formed on the rear side of the arc groove (122), a top screw (126) is formed through the inside of the thread groove (124), the fixing ring (121) is fixedly connected to the front and rear side walls of the center seat (1), the bottom of the fixing ring (121) is movably plugged with the connecting plate (31) via the arc groove (122), the top screw (126) is threadedly connected to the thread groove (124), and the top screw (126) passes through the fixing ring (121) via the through hole (123) and is inserted into the slot (125).

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