Lifting appliance for prefabricated part

Abstract

The invention relates to the technical field of lifting appliances, in particular to a prefabricated part lifting appliance which comprises a fixing assembly, lifting assemblies are fixedly mounted on the two sides of the upper end of the fixing assembly, adjusting assemblies are slidably clamped to the two sides of the interior of the fixing assembly, connecting assemblies are clamped to the lower ends of the adjusting assemblies, and the fixing assembly comprises a cross beam; the two ends of the lifting assembly are fixedly installed on the two sides of the upper surface of the cross beam, the adjusting assembly is slidably clamped to the cross beam and comprises a clamping block, an extension rod is fixedly installed at the lower end of the clamping block, a connecting hook is rotationally installed at the lower end of the extension rod, and the connecting assembly is clamped into the connecting hook. By adjusting the positions of the clamping blocks on the cross beam, the stress balance of the two ends of the prefabricated part during hoisting is convenient to balance, the prefabricated parts of different sizes are convenient to hoist, the unhooking phenomenon between the connecting assembly and the adjusting assembly is avoided through a hoisting hook and a screw rod in the adjusting assembly, and the safety during use is improved.

Description

Technical Field

[0001] The invention relates to a hoisting sling for a prefabricated component and belongs to the technical field of slings. Background Art

[0002] Reinforced concrete structures include two categories: cast-in-place monolithic reinforced concrete structures and prefabricated monolithic reinforced concrete structures. Prefabricated monolithic structures are prefabricated components. Prefabricated components are a type of structure in which various reinforced concrete prefabricated components are installed by machinery and assembled according to design requirements. The production process of prefabricated components includes the production and installation of formwork, the production and installation of steel bars, the preparation and transportation of concrete, the pouring, vibration and maintenance of components, demoulding and stacking, etc. Prefabricated components refer to steel, wood or concrete components prefabricated in factories or on-site according to design specifications. They are widely used in modern prefabricated buildings. After the prefabricated components are prefabricated, they are sometimes necessary to use lifting slings to lift the prefabricated components and place them for installation.

[0003] As disclosed in the publication number: CN112919304A, a lifting sling for prefabricated components and a lifting method thereof, which includes a load-bearing steel beam, both ends of the load-bearing steel beam are provided with lifting mechanisms, the lifting mechanisms include a self-locking hook and a lifting wire rope, the self-locking hook is located on one side of the width direction of the load-bearing steel beam, the lifting wire rope is tensioned between the self-locking hook and the load-bearing beam, the load-bearing steel beam is provided with a tower crane connection mechanism between the two lifting mechanisms, the tower crane connection mechanism includes a lifting ring and a tower crane wire rope, the lifting ring is located on the other side of the width direction of the load-bearing steel beam, the tower crane wire rope is tensioned between the lifting ring and the load-bearing steel beam, and the self-locking hook can be clamped and fixed in the lifting ring. The present application has the following effects: the universality of the lifting sling is improved, the use of special lifting slings is reduced, and thus it is not easy to use the wrong special lifting sling when lifting prefabricated components.

[0004] Another example is the publication number: CN212024538U, a lifting sling for prefabricated components of assembled buildings, including a lifting pile, the outer wall of the lifting pile is evenly provided with four rotating rods, each of the rotating rods is rotatably connected to the outer wall of the lifting pile, each of the rotating rods is provided with a fixing assembly at one end away from the lifting pile, and a lifting box is fixedly fixed with the four fixing assemblies, the lifting pile is provided with a mounting groove, a driving motor is fixedly installed in the mounting groove, a screw rod is fixedly connected to the output end of the driving motor, the screw rod passes through the lifting pile and extends between the four rotating rods, and a ball nut matching it is sleeved on the outer wall of the screw rod. This technical solution realizes the rising of the truncated table through the cooperation of the screw rod and the ball nut, drives the stretching rod to pull the rotating rod to contract, and realizes the fastening of the fixed assembly to the hoisting box. Compared with the existing hoisting equipment using a single steel wire rope, it increases the stress points, greatly improves the load-bearing toughness, and reduces safety hazards. However, when connecting the prefabricated component to the hoisting equipment, there is a problem of uneven stress on both ends, and for prefabricated components of different sizes, it is inconvenient to adjust the installation distance during hoisting, which makes it inconvenient to use.

[0005] In view of this, the present invention is specially proposed. When in use, it is convenient to balance the forces at both ends of the prefabricated component, and it is convenient to adjust prefabricated components of different sizes, and it is convenient to operate and use. Summary of the invention

[0006] The purpose of the present invention is to provide a lifting sling for prefabricated components in order to solve the above-mentioned problems. When in use, by adjusting the position of the adjusting component on the fixed component, it is convenient to balance the forces at both ends of the prefabricated components. By adjusting the position of the adjusting component, it is convenient to lift prefabricated components of different sizes, which is convenient to use, avoids the phenomenon of unhooking, and improves safety of use.

[0007] The present invention achieves the above-mentioned purpose through the following technical scheme: a lifting sling for prefabricated components, comprising a fixing assembly, a lifting assembly is fixedly installed on both sides of the upper end of the fixing assembly, and an adjusting assembly is slidably clamped on both sides of the interior of the fixing assembly, and a connecting assembly is clamped on the lower end of the adjusting assembly, the fixing assembly comprises a cross beam, and both ends of the lifting assembly are fixedly installed on both sides of the upper surface of the cross beam, the adjusting assembly is slidably clamped on the cross beam, and the adjusting assembly comprises a clamping block, an extension rod is fixedly installed on the lower end of the clamping block, and a connecting hook is rotatably installed on the lower end of the extension rod, and the connecting assembly is clamped on the inner side of the connecting hook. When in use, the position of the clamping block on the crossbeam is adjusted according to the length of the prefabricated component or the weight of the two ends of the prefabricated component, thereby adjusting the force balance at the two ends of the prefabricated component during lifting, and after the adjustment is completed, it is fixed, and then the lifting assembly is connected to the external lifting equipment, the connecting assembly is clamped on the connecting hook and fixed to avoid unhooking, the connecting assembly is plugged into the lifting hole reserved on the external prefabricated component, and when lifting, the technical solution is lifted by the external lifting equipment, thereby lifting the prefabricated component, which is convenient for operation and lifting.

[0008] Furthermore, a groove is provided in the middle position of the upper surface of the beam, and the clamping block is clamped in the inside of the groove, a through hole is provided in the middle position of the lower surface of the beam, the through hole is connected with the groove, the extension rod extends to the lower end of the beam through the through hole, the lower end of the groove is located on both sides of the through hole and pin holes are evenly provided, and the adjusting component is clamped in the pin holes, connecting rings are fixedly installed on both sides of the upper surface of the beam, and the lifting component is fixedly connected to the connecting rings, when adjusting the position of the adjusting component on the beam, the clamping block is used to slide in the inside of the groove for easy adjustment, and after the adjustment is completed, the adjusting component is inserted into the pin hole at the corresponding position for easy fixation, and through the connecting ring, it is convenient to be fixedly connected to the lifting component for convenient lifting.

[0009] Furthermore, the lifting assembly includes a sling, and one end of the sling is fixedly connected to the connecting ring, and the other end of the sling is fixedly installed with a lifting block, and a first rotating member is fixedly installed on the upper end of the lifting block, and a lifting ring is fixedly installed on the upper end of the first rotating member, and the lifting block is located in the middle position above the beam. Through the sling, it is convenient to connect with the fixed assembly, and through the first rotating member, after lifting, it is convenient to rotate the prefabricated component, and it is convenient to adjust the angle during lifting, and through the lifting ring, it is convenient to connect with external lifting equipment, so as to facilitate lifting.

[0010] The cam is secured to the upper edge of the second support frame, and the cam is secured to the lower edge of the second support frame, wherein the cam is secured to the lower edge of the second support frame. A tensioning ring is fixedly installed at one end. When adjusting, the first spring is compressed by pulling the pull ring, so that the pin rod is disengaged from the pin hole, which is convenient for adjusting the position of the adjusting component. After the adjustment is completed, the first spring is stretched by loosening the pull ring, so that the pin rod is inserted into the inside of the pin hole and the pin rod is prevented from being disengaged from the pin hole, thereby improving the safety during lifting. The second rotating member is convenient for freely adjusting the direction of the connecting hook, and when connecting the connecting component, it is convenient to clamp the inside of the connecting hook through the notch. After the connection, the tensioning ring is loosened to make the second spring contract, so that one end of the screw rod extends into the inside of the threaded tube, and the plane bearing is rotated by rotating the screw rod, and one end of the screw rod is threadedly connected to the threaded tube, which is convenient for limiting the connecting component to avoid unhooking.

[0011] Furthermore, the connecting component includes a mounting ring, and a connecting claw is fixedly installed on the upper end of the mounting ring, and the upper ends of the connecting claws are arc-shaped structures on both sides, the connecting claws are clamped inside the notch, and the connecting claws are clamped with the connecting hooks, a circular ring is sleeved inside the mounting ring, and a connecting steel cable is fixedly installed on the lower end of the circular ring, and a plug-in rod is fixedly installed on the lower end of the connecting steel cable, and the plug-in rod is an L-shaped structure. When connecting, the connecting claw is used to facilitate fixed connection with the adjusting component to avoid unhooking and improve the stability of the connection, and the plug-in rod is used to facilitate plugging into the plug-in hole reserved in the prefabricated component, so as to facilitate connection with external prefabricated components.

[0012] The technical effects and advantages of the present invention are as follows: by adjusting the position of the clamping block on the crossbeam, it is convenient to balance the force balance at both ends of the prefabricated component during lifting, and it is convenient to lift prefabricated components of different sizes. By adjusting the lifting hook and the screw in the component, the decoupling phenomenon between the connecting component and the adjusting component is avoided, thereby improving the safety during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall structure of the present invention from another angle; Figure 3 It is a schematic diagram of the structure of the fixing component in the present invention; Figure 4 It is a structural schematic diagram of the lifting assembly in the present invention; Figure 5 It is a structural schematic diagram of the regulating component in the present invention; Figure 6 It is a structural schematic diagram of another angle of the adjustment component in the present invention; Figure 7 It is a schematic diagram of the structure of a part of the regulating component in the present invention; Figure 8 It is a schematic diagram of the structure of a part of the connection component in the present invention; In the figure: 1, fixing assembly; 101, crossbeam; 102, groove; 103, through hole; 104, pin hole; 105, connecting ring; 2. Lifting assembly; 201. Lifting rope; 202. Lifting block; 203. First rotating member; 204. Lifting ring; 3. Adjustment assembly; 301. Clamping block; 302. Extension rod; 303. Connecting hook; 304. Pin rod; 305. Pull ring; 306. Lifting plate; 307. First spring; 308. Second rotating member; 309. Notch; 3010. Plane bearing; 3011. Threaded tube; 3012. Second spring; 3013. Screw rod; 3014. Tightening ring; 4. Connecting assembly; 401. Mounting ring; 402. Connecting claw; 403. Round ring; 404. Connecting steel cable; 405. Connecting rod. DETAILED DESCRIPTION

[0014] 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.

[0015] See also Figure 1-8 As shown, a lifting device for prefabricated components includes a fixing component 1, a lifting component 2 is fixedly installed on both sides of the upper end of the fixing component 1, and an adjusting component 3 is slidably clamped on both sides of the interior of the fixing component 1, and a connecting component 4 is clamped on the lower end of the adjusting component 3, the fixing component 1 includes a crossbeam 101, and both ends of the lifting component 2 are fixedly installed on both sides of the upper surface of the crossbeam 101, the adjusting component 3 is slidably clamped on the crossbeam 101, and the adjusting component 3 includes a clamping block 301, an extension rod 302 is fixedly installed on the lower end of the clamping block 301, and a connecting hook 303 is rotatably installed on the lower end of the extension rod 302, and the connecting component 4 is clamped inside the connecting hook 303, When in use, the position of the clamping block 301 on the crossbeam 101 is adjusted according to the length of the prefabricated component or the weight of the two ends of the prefabricated component, thereby adjusting the force balance at the two ends of the prefabricated component during lifting. After the adjustment is completed, it is fixed, and then the lifting component 2 is connected to the external lifting equipment, and the connecting component 4 is clamped on the connecting hook 303 and fixed to avoid unhooking. The connecting component 4 is plugged into the lifting hole reserved on the external prefabricated component, and when lifting, the technical solution is lifted by the external lifting equipment, so that the prefabricated component is lifted, which is convenient for operation and lifting.

[0016] A groove 102 is provided in the middle position of the upper surface of the crossbeam 101, and the clamping block 301 is clamped in the inside of the groove 102. A through hole 103 is provided in the middle position of the lower surface of the crossbeam 101, and the through hole 103 is connected with the groove 102. The extension rod 302 extends to the lower end of the crossbeam 101 through the through hole 103. Pin holes 104 are evenly provided on both sides of the lower end of the groove 102 located at the through hole 103, and the adjusting component 3 is clamped with the pin holes 104. Connecting rings 105 are fixedly installed on both sides of the upper surface of the crossbeam 101, and the lifting component 2 is fixedly connected to the connecting ring 105. When adjusting the position of the adjusting component 3 on the crossbeam 101, the clamping block 301 is slid in the inside of the groove 102 to facilitate adjustment. After the adjustment is completed, the adjusting component 3 is inserted into the pin hole 104 at the corresponding position to facilitate fixation, and through the connecting ring 105, it is convenient to be fixedly connected with the lifting component 2, so as to facilitate lifting.

[0017] The lifting component 2 includes a sling 201, and one end of the sling 201 is fixedly connected to the connecting ring 105, and the other end of the sling 201 is fixedly installed with a lifting block 202, and the upper end of the lifting block 202 is fixedly installed with a first rotating member 203, and the upper end of the first rotating member 203 is fixedly installed with a lifting ring 204, and the lifting block 202 is located in the upper middle position of the beam 101. Through the sling 201, it is convenient to connect with the fixed component 1, and through the first rotating member 203, after lifting, it is convenient to rotate the prefabricated component and adjust the angle during lifting. Through the lifting ring 204, it is convenient to connect with external lifting equipment for lifting. When lifting, through the sling 201, it is convenient to apply the force to the two ends of the beam 101, so that the force on the beam 101 is balanced.

[0018] The lower surface of the clamping block 301 is evenly fixed with pin rods 304 on both sides of the extension rod 302, and the pin rods 304 are inserted into the pin hole 104, and the upper surface of the clamping block 301 is fixed with a pull ring 305, and the lower end of the extension rod 302 is fixed with a lifting plate 306, and the upper surface of the lifting plate 306 is fixed with a first spring 307, the upper end of the first spring 307 is pressed against the lower surface of the beam 101, and the lower surface of the lifting plate 306 is fixed with a second rotating member 308, the connecting hook 303 is fixedly installed at the lower end of the second rotating member 308, and the lower end of the connecting hook 303 is provided with a notch 309, and the connecting component 4 is clamped. A plane bearing 3010 is fixedly installed on one side of the connecting hook 303, and a threaded tube 3011 is fixedly installed on the other side of the connecting hook 303. A second spring 3012 is fixedly installed on the other side of the plane bearing 3010, and a screw rod 3013 is fixedly installed on the other end of the second spring 3012. One end of the screw rod 3013 passes through the second spring 3012 and the notch 309, extends to the inside of the threaded tube 3011 and is threadedly connected to the threaded tube 3011, and a tensioning ring 3014 is fixedly installed on one end of the screw rod 3013. When adjusting, the first spring 307 is compressed by pulling the pull ring 305, thereby The pin rod 304 is separated from the pin hole 104, which is convenient for adjusting the position of the adjustment component 3. After the adjustment is completed, the pull ring 305 is loosened to stretch the first spring 307, so that the pin rod 304 is inserted into the inside of the pin hole 104, and the pin rod 304 is prevented from being separated from the pin hole 104, thereby improving the safety during lifting. The second rotating member 308 is convenient for freely adjusting the direction of the connecting hook 303, and when the connecting component 4 is connected, the notch 309 is convenient for clamping inside the connecting hook 303. When connecting, the screw rod 3013 is turned so that one end of the screw rod 3013 is connected to the threaded tube 3 011 is disengaged, and the screw rod 3013 is pulled by the tightening ring 3014, so that the second spring 3012 is stretched, and the screw rod 3013 is moved toward the plane bearing 3010, so as to facilitate the connection component 4 to be clamped inside the notch 309, and after the connection, the tightening ring 3014 is loosened to make the second spring 3012 shrink, so that one end of the screw rod 3013 extends to the inside of the threaded tube 3011, and by rotating the screw rod 3013, the plane bearing 3010 is rotated, and one end of the screw rod 3013 is threadedly connected with the threaded tube 3011, so as to facilitate the connection component 4 to limit the position and avoid the unhooking phenomenon.

[0019] The connecting assembly 4 includes a mounting ring 401, and a connecting claw 402 is fixedly installed on the upper end of the mounting ring 401, and the upper ends of the connecting claws 402 are arc-shaped structures on both sides, the connecting claws 402 are clamped in the inside of the notch 309, and the connecting claws 402 are clamped with the connecting hooks 303, and the inside of the mounting ring 401 is sleeved with a circular ring 403, and the lower end of the circular ring 403 is fixedly installed with a connecting steel cable 404, and the lower end of the connecting steel cable 404 is fixedly installed with a plug-in rod 405, and the plug-in rod 405 is an L-shaped structure. When connected, it is convenient to connect with the adjustment assembly through the connecting claws 402. The parts 3 are fixedly connected, and the two ends of the connecting claw 402 are arc-shaped structures, and then after being clamped in the inside of the notch 309, the arc-shaped end is hung on the connecting hook 303, and the screw 3013 on the connecting hook 303 closes one end of the notch 309, and then through the connecting claw 402 and the mounting ring 401, the connecting component 4 is prevented from being separated from the connecting hook 303, and the decoupling is avoided, thereby improving the stability of the connection, and through the plug-in rod 405, it is easy to be plugged into the plug-in hole reserved in the prefabricated component, so as to facilitate the connection with the external prefabricated component.

[0020] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0021] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A hoisting device for prefabricated components. Features: The invention comprises a fixing component (1), a lifting component (2) is fixedly mounted on both sides of the upper end of the fixing component (1), and an adjusting component (3) is slidably clamped on both sides of the interior of the fixing component (1), and a connecting component (4) is clamped on the lower end of the adjusting component (3), the fixing component (1) comprises a crossbeam (101), and both ends of the lifting component (2) are fixedly mounted on both sides of the upper surface of the crossbeam (101), the adjusting component (3) is slidably clamped on the crossbeam (101), and the adjusting component (3) comprises a clamping block (301), an extension rod (302) is fixedly mounted on the lower end of the clamping block (301), and a connecting hook (303) is rotatably mounted on the lower end of the extension rod (302), and the connecting component (4) is clamped inside the connecting hook (303).

2. A hoisting device for prefabricated components according to claim 1, Features: A groove (102) is provided in the middle of the upper surface of the crossbeam (101), and the clamping block (301) is clamped inside the groove (102). A through hole (103) is provided in the middle of the lower surface of the crossbeam (101), the through hole (103) is connected to the groove (102), and the extension rod (302) passes through the through hole (103) and extends to the lower end of the crossbeam (101).

3. A hoisting device for prefabricated components according to claim 2, Features: The lower end of the groove (102) is evenly provided with pin holes (104) on both sides of the through hole (103), and the adjustment component (3) is snap-fitted with the pin holes (104). Connecting rings (105) are fixedly installed on both sides of the upper surface of the crossbeam (101), and the lifting component (2) is fixedly connected with the connecting rings (105).

4. A hoisting device for prefabricated components according to claim 3, Features: The lifting assembly (2) comprises a sling (201), one end of the sling (201) is fixedly connected to the connecting ring (105), the other end of the sling (201) is fixedly mounted with a lifting block (202), a first rotating member (203) is fixedly mounted on the upper end of the lifting block (202), a lifting ring (204) is fixedly mounted on the upper end of the first rotating member (203), and the lifting block (202) is located in the middle position above the crossbeam (101).

5. A hoisting device for prefabricated components according to claim 3, Features: Pin rods (304) are evenly fixedly mounted on the lower surface of the clamping block (301) on both sides of the extension rod (302), and the pin rods (304) are inserted into the pin hole (104). A pull ring (305) is fixedly mounted on the upper surface of the clamping block (301).

6. A hoisting device for prefabricated components according to claim 1, Features: A lifting plate (306) is fixedly mounted on the lower end of the extension rod (302), and a first spring (307) is fixedly mounted on the upper surface of the lifting plate (306), the upper end of the first spring (307) is pressed against the lower surface of the crossbeam (101), and a second rotating member (308) is fixedly mounted on the lower surface of the lifting plate (306), and the connecting hook (303) is fixedly mounted on the lower end of the second rotating member (308).

7. A hoisting device for prefabricated components according to claim 6, Features: A notch (309) is formed at the lower end of the connecting hook (303), and the connecting assembly (4) is snapped into place inside the notch (309); a plane bearing (3010) is fixedly mounted on one side of the connecting hook (303), and a threaded tube (3011) is fixedly mounted on the other side of the connecting hook (303); a second spring (3012) is fixedly mounted on the other side of the plane bearing (3010), and a screw rod (3013) is fixedly mounted on the other end of the second spring (3012).

8. A hoisting device for prefabricated components according to claim 7, Features: One end of the screw rod (3013) passes through the second spring (3012) and the notch (309), extends to the inside of the threaded tube (3011) and is threadedly connected to the threaded tube (3011), and a tensioning ring (3014) is fixedly mounted on one end of the screw rod (3013).

9. A hoisting device for prefabricated components according to claim 7, Features: The connection assembly (4) comprises a mounting ring (401), and a connecting claw (402) is fixedly mounted on the upper end of the mounting ring (401), and both sides of the upper end of the connecting claw (402) are arc-shaped structures, the connecting claw (402) is clamped inside the notch (309), and the connecting claw (402) is clamped with the connecting hook (303), a circular ring (403) is sleeved inside the mounting ring (401), and a connecting steel cable (404) is fixedly mounted on the lower end of the circular ring (403), and a plug-in rod (405) is fixedly mounted on the lower end of the connecting steel cable (404), and the plug-in rod (405) is an L-shaped structure.

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