Hoisting lock for prestressed reinforced concrete slab

Abstract

The utility model discloses a hoisting lockset of prestressed reinforced concrete slab, including: support and fixed link, the fixed link is fixedly connected below the support, the bottom surface of fixed link is provided with first chute, the inside of first chute is slidingly connected with two suspenders, the top surface of the inner wall of first chute is provided with second chute, and the top surface of the inner wall of first chute is provided with second chute. Two first sliding blocks are connected into the second sliding groove in a sliding mode, and the bottom ends of the two first sliding blocks extend into the first sliding groove and are fixed to the top faces of the two hanging rods correspondingly. The driving assembly is located in the fixing rod and used for driving the two first sliding blocks to move; the pre-stressed reinforced concrete slab hoisting device solves the problems easily occurring in the conventional hoisting process, can fix pre-stressed reinforced concrete slabs with any thickness, and is simple and practical in structure, convenient to operate and wide in application range.

Description

Technical Field

[0001] This utility model belongs to the field of hoisting lock technology, specifically relating to a hoisting lock for a prestressed reinforced concrete slab. Background Technology

[0002] Prestressed reinforced concrete slabs are building materials made by prestressing ordinary reinforced concrete slabs. Before the concrete is poured or before it sets, the steel bars inside the slab are tensioned to generate prestress. When the concrete slab is subjected to external loads, this prestress can offset part or all of the tensile stress caused by the load, thereby delaying the generation and propagation of concrete cracks and improving the load-bearing capacity, crack resistance and durability of the concrete slab. When moving prestressed reinforced concrete slabs, they need to be lifted by hoisting equipment.

[0003] Traditional lifting locks typically use nylon or hemp ropes. When users use these locks to lift prestressed reinforced concrete slabs, the slabs are prone to swaying and, in severe cases, tilting. If tilted, the prestressed reinforced concrete slab may detach from the lock, injuring workers below. Therefore, we propose a new lifting lock for prestressed reinforced concrete slabs. Utility Model Content

[0004] To address the aforementioned problems, this utility model discloses a hoisting lock for prestressed reinforced concrete slabs, which can fix prestressed reinforced concrete slabs of any thickness. It has a simple and practical structure, is easy to operate, and has a wide range of applications.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A hoisting lock for a prestressed reinforced concrete slab, comprising:

[0007] The bracket and the fixing rod are fixedly connected to the bottom of the bracket. The bottom surface of the fixing rod is provided with a first sliding groove, and two hanging rods are slidably connected in the first sliding groove. The top surface of the inner wall of the first sliding groove is provided with a second sliding groove, and two first sliders are slidably connected in the second sliding groove. The bottom ends of the two first sliders extend into the first sliding groove and are fixed to the top surfaces of the two hanging rods respectively.

[0008] A drive assembly, located inside a fixed rod, is used to move two first sliders.

[0009] Two third sliding grooves are respectively opened in two hanging rods and connected to the outside. A second slider is slidably connected in the third sliding groove, and a clamping plate is fixedly connected to one end of the second slider.

[0010] Two adjustment components are located inside two booms and are used to move the two clamps respectively.

[0011] Two trays are fixedly connected to two lifting rods and are located below two clamps respectively;

[0012] Multiple rubber pads are respectively fixedly connected to two clamping plates and two supporting plates;

[0013] A storage battery, which is mounted on a fixed rod.

[0014] During operation, the system utilizes a first slide rail, a hanger, a second slide rail, and a third slide rail. The hanger can move two first sliders along the first slide rail, which in turn move them inwards along the second slide rail. A drive assembly allows the user to adjust the distance between the two hanger rails by moving the two sliders closer together or further apart. A third slide rail, a second slider, a clamping plate, and a support plate allow the second slider to move along the third slide rail, adjusting the distance between the clamping plate and the support plate. An adjustment assembly allows the user to move the second slider, securing the prestressed reinforced concrete slab with the clamping plate and support plate. Multiple rubber pads prevent scratches on the prestressed reinforced concrete slab when it is held in place by the clamping plate and support plate.

[0015] Furthermore, the driving component includes:

[0016] Two racks are slidably connected in a second groove, and one end of each rack is fixed to a first slider. Gears mesh between the two racks to ensure that the two hangers can fix a prestressed reinforced concrete slab of any width.

[0017] The first motor is fixedly connected to the top surface of the fixed rod, and the output shaft of the first motor passes through the top surface of the fixed rod and extends into the second slide groove to be fixed with the gear.

[0018] Furthermore, the gear is located in the second slide groove and is rotatably connected to the second slide groove. When the user starts the first motor, the output shaft of the first motor can drive the gear to rotate in the second slide groove.

[0019] Furthermore, the output shaft of the first motor is rotatably connected to the second slide groove, so that when the user starts the first motor, the output shaft of the first motor can rotate normally in the second slide groove.

[0020] Furthermore, the adjustment component includes:

[0021] A threaded rod, which is rotatably connected in the third slide groove and threadedly connected to the second slider;

[0022] The movable groove is formed on the top surface of the inner wall of the third slide groove and is connected to the outside. A first sprocket is rotatably connected in the movable groove, and one end of the first sprocket extends into the third slide groove and is fixed to one end of the threaded rod.

[0023] The second motor is fixedly connected to the boom, and a second sprocket is fixedly connected to the output shaft of the second motor. A chain meshes between the second sprocket and the first sprocket.

[0024] In this technical solution, it is ensured that two clamping plates and two support plates can fix a prestressed reinforced concrete slab of any thickness.

[0025] Furthermore, one end of the first sprocket is rotatably connected to the third groove, so that when the first sprocket rotates, one end of the first sprocket can rotate normally within the third groove.

[0026] Furthermore, the bottom ends of the two first sliders are slidably connected to the first slide groove, so that when the two first sliders slide, the bottom ends of the two first sliders can slide normally within the first slide groove.

[0027] Furthermore, the battery is connected to the wiring of the first motor and the second motor.

[0028] In this technical solution, it is ensured that the battery can provide power support to the first motor and the second motor respectively, so that the first motor and the second motor can be used normally.

[0029] The beneficial effects of this utility model are:

[0030] The prestressed reinforced concrete slab hoisting lock of this utility model, through the setting of a first sliding groove, a lifting rod, a second sliding groove, and a third sliding groove, allows two lifting rods to drive two first sliders to slide inward along the second sliding groove, respectively. A driving component ensures that the user can move the two first sliders closer together or further apart, allowing the user to adjust the distance between the two lifting rods. A third sliding groove, a second slider, a clamping plate, and a support plate ensure that the second slider can move along the third sliding groove, driving the clamping plate to adjust the distance between the clamping plate and the support plate. The adjustable components ensure that users can move the second slider, allowing the two clamps and two support plates to secure the prestressed reinforced concrete slab. The rubber pads prevent scratches when the slab is held in place, thus solving the problem of the prestressed reinforced concrete slab easily swaying on the hoisting fixture, potentially tilting in severe cases. This could cause the slab to detach from the hoisting fixture and injure workers below. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0032] Figure 2 This is one of the internal structural diagrams of the fixing rod of this utility model;

[0033] Figure 3 This is the second schematic diagram of the internal structure of the fixing rod of this utility model;

[0034] Figure 4 This is a cross-sectional structural schematic diagram of the lifting rod of this utility model;

[0035] Figure 5 This is a schematic diagram of the internal structure of the lifting rod of this utility model.

[0036] List of identifiers in attached diagrams:

[0037] 1. Bracket; 2. Fixed rod; 3. First slide rail; 4. Hanging rod; 5. Second slide rail; 6. First slider; 7. Third slide rail; 8. Second slider; 9. Clamping plate; 10. Support plate; 11. Rubber pad; 12. Rack; 13. Gear; 14. First motor; 15. Threaded rod; 16. Movable groove; 17. First sprocket; 18. Second motor; 19. Second sprocket; 20. Chain; 21. Battery. Detailed Implementation

[0038] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. Example

[0039] like Figure 1 - Figure 5 As shown, this embodiment provides a hoisting lock for a prestressed reinforced concrete slab, including:

[0040] The bracket 1 and the fixing rod 2 are fixedly connected to the bottom of the bracket 1. The bottom surface of the fixing rod 2 is provided with a first sliding groove 3. Two hanging rods 4 are slidably connected in the first sliding groove 3. The top surface of the inner wall of the first sliding groove 3 is provided with a second sliding groove 5. Two first sliders 6 are slidably connected in the second sliding groove 5, and the bottom ends of the two first sliders 6 extend into the first sliding groove 3 and are fixed to the top surface of the two hanging rods 4 respectively.

[0041] The drive assembly is located inside the fixed rod 2 and is used to drive the two first sliders 6 to move.

[0042] Two third slide grooves 7 are respectively opened in two hanging rods 4 and connected to the outside. A second slider 8 is slidably connected in the third slide groove 7, and a clamping plate 9 is fixedly connected to one end of the second slider 8.

[0043] Two adjusting components are located inside the two lifting rods 4 respectively, and are used to drive the two clamping plates 9 to move respectively;

[0044] Two support plates 10 are fixedly connected to two hanging rods 4 respectively, and are located below two clamping plates 9 respectively;

[0045] Multiple rubber pads 11 are fixedly connected to two clamping plates 9 and two supporting plates 10 respectively;

[0046] Battery 21 is mounted on fixed rod 2. Example

[0047] This embodiment provides a hoisting lock for prestressed reinforced concrete slabs. In addition to the technical solutions described in the above embodiments, it also has the following technical features: the driving component includes:

[0048] Two racks 12 are slidably connected in the second slide groove 5, and one end of each rack 12 is fixed to the two first sliders 6 respectively. A gear 13 meshes between the two racks 12.

[0049] The first motor 14 is fixedly connected to the top surface of the fixed rod 2, and the output shaft of the first motor 14 passes through the top surface of the fixed rod 2 and extends into the second slide groove 5 to be fixed with the gear 13.

[0050] The user starts the first motor 14, causing the output shaft of the first motor 14 to drive the gear 13 to rotate in the second slide groove 5. The gear 13 drives the two racks 12 to move closer to each other. When the two racks 12 move closer to each other, they will drive the two first sliders 6 to move closer to each other along the second slide groove 5. The two first sliders 6 will drive the two hangers 4 to move closer to each other along the first slide groove 3. When the two hangers 4 move closer to each other to a suitable position, they will fix the prestressed reinforced concrete slab, ensuring that the two hangers 4 can fix the prestressed reinforced concrete slab of any width. Example

[0051] This embodiment provides a hoisting lock for a prestressed reinforced concrete slab. In addition to the technical solution of the above embodiment, it also has the following technical features: the gear 13 is located in the second slide groove 5 and is rotatably connected to the second slide groove 5.

[0052] Specifically, it is ensured that when the user starts the first motor 14, the output shaft of the first motor 14 can drive the gear 13 to rotate in the second slide groove 5. Example

[0053] This embodiment provides a hoisting lock for a prestressed reinforced concrete slab. In addition to the technical solution of the above embodiment, it also has the following technical features: the output shaft of the first motor 14 is rotatably connected to the second slide groove 5.

[0054] Specifically, it is ensured that when the user starts the first motor 14, the output shaft of the first motor 14 can rotate normally within the second slide groove 5. Example

[0055] This embodiment provides a hoisting lock for prestressed reinforced concrete slabs. In addition to the technical solutions described in the above embodiments, it also has the following technical features: the adjustment components include:

[0056] Threaded rod 15 is rotatably connected in the third slide groove 7 and threadedly connected to the second slider 8.

[0057] The movable groove 16 is opened on the top surface of the inner wall of the third slide groove 7 and is connected to the outside. The first sprocket 17 is rotatably connected in the movable groove 16, and one end of the first sprocket 17 extends into the third slide groove 7 and is fixed to one end of the threaded rod 15.

[0058] The second motor 18 is fixedly connected to the boom 4. The output shaft of the second motor 18 is fixedly connected to the second sprocket 19. The chain 20 meshes between the second sprocket 19 and the first sprocket 17.

[0059] The user activates two second motors 18, causing the output shafts of the second motors 18 to drive the second sprocket 19 to rotate. The second sprocket 19 then drives the first sprocket 17 to rotate within the movable groove 16 via the chain 20. The first sprocket 17 then drives the threaded rod 15 to rotate within the third sliding groove 7. When the threaded rod 15 rotates, the second slider 8 is driven by the thread of the threaded rod 15 to move the clamping plate 9 downward. When the two clamping plates 9 move downward to the appropriate position, they will tightly clamp the prestressed reinforced concrete slab onto the two support plates 10, ensuring that the two clamping plates 9 and the two support plates 10 can fix the prestressed reinforced concrete slab of any thickness. Example

[0060] This embodiment provides a hoisting lock for a prestressed reinforced concrete slab. In addition to the technical solution of the above embodiment, it also has the following technical features: one end of the first sprocket 17 is rotatably connected to the third slide groove 7.

[0061] Specifically, it is ensured that when the first sprocket 17 rotates, one end of the first sprocket 17 can rotate normally within the third slide groove 7. Example

[0062] This embodiment provides a hoisting lock for a prestressed reinforced concrete slab. In addition to the technical solution of the above embodiment, it also has the following technical features: the bottom ends of the two first sliders 6 are slidably connected to the first sliding groove 3.

[0063] Specifically, it is ensured that when the two first sliders 6 slide, the bottom ends of the two first sliders 6 can slide normally within the first groove 3. Example

[0064] This embodiment provides a hoisting lock for a prestressed reinforced concrete slab. In addition to the technical solution of the above embodiment, it also has the following technical features: the battery 21 is wired to the first motor 14 and the second motor 18.

[0065] Specifically, it ensures that the storage battery 21 can provide power support to the first motor 14 and the second motor 18 respectively, so that the first motor 14 and the second motor 18 can be used normally.

[0066] In use, the user moves the entire device to a suitable position using a hoist, positioning the prestressed reinforced concrete slab between the two booms 4 and above the two support plates 10. The user then starts the first motor 14, causing its output shaft to drive the gear 13 to rotate within the second slide groove 5. This causes the gear 13 to move the two racks 12 closer together. As the racks 12 approach each other, they respectively drive the two first sliders 6 to move closer together along the second slide groove 5. The two first sliders 6 then drive the two booms 4 to move closer together along the first slide groove 3. When the two booms 4 reach the appropriate position, they will secure the prestressed reinforced concrete slab, ensuring the stability of the device. This system can fix prestressed reinforced concrete slabs of any width. Then, the user starts two second motors 18, causing the output shafts of the second motors 18 to drive the second sprockets 19 to rotate. The second sprockets 19 drive the first sprockets 17 to rotate in the movable groove 16 via the chain 20. The first sprockets 17 drive the threaded rod 15 to rotate in the third sliding groove 7. When the threaded rod 15 rotates, the second slider 8 will be driven by the thread of the threaded rod 15 to move the clamping plate 9 downward. When the two clamping plates 9 move downward to the appropriate position, the two clamping plates 9 will tightly clamp the prestressed reinforced concrete slab onto the two support plates 10, ensuring that the two clamping plates 9 and the two support plates 10 can fix the prestressed reinforced concrete slab of any thickness.

[0067] It should be noted that the above content merely illustrates the technical concept of this utility model and cannot be used to limit the scope of protection of this utility model. For those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and all such improvements and modifications fall within the scope of protection of the claims of this utility model.

Claims

1. A hoisting lock for a prestressed reinforced concrete slab, characterized in that, include: The bracket (1) and the fixing rod (2) are fixedly connected to the bottom of the bracket (1). The bottom surface of the fixing rod (2) is provided with a first sliding groove (3). Two hanging rods (4) are slidably connected in the first sliding groove (3). The top surface of the inner wall of the first sliding groove (3) is provided with a second sliding groove (5). Two first sliders (6) are slidably connected in the second sliding groove (5). The bottom ends of the two first sliders (6) extend into the first sliding groove (3) and are fixed to the top surfaces of the two hanging rods (4) respectively. A drive assembly located inside a fixed rod (2) and used to drive two first sliders (6) to move; Two third slide grooves (7) are respectively opened in two hanging rods (4) and connected to the outside. A second slider (8) is slidably connected in the third slide groove (7). A clamp (9) is fixedly connected to one end of the second slider (8). Two adjustment components are located in two rods (4) respectively and are used to drive the two clamps (9) to move respectively; Two trays (10) are fixedly connected to two rods (4) respectively and are located below two clamps (9); Multiple rubber pads (11) are fixedly connected to two clamping plates (9) and two supporting plates (10), respectively. A storage battery (21) is mounted on a fixed rod (2).

2. The hoisting lock for a prestressed reinforced concrete slab according to claim 1, characterized in that, The driving component includes: Two racks (12) are slidably connected in the second slide groove (5), and one end of each rack (12) is fixed to the two first sliders (6). A gear (13) meshes between the two racks (12). The first motor (14) is fixedly connected to the top surface of the fixed rod (2), and the output shaft of the first motor (14) passes through the top surface of the fixed rod (2) and extends into the second slide groove (5) to be fixed with the gear (13).

3. The hoisting lock for a prestressed reinforced concrete slab according to claim 2, characterized in that, The gear (13) is located in the second slide groove (5) and is rotatably connected to the second slide groove (5).

4. The hoisting lock for a prestressed reinforced concrete slab according to claim 2, characterized in that, The output shaft of the first motor (14) is rotatably connected to the second slide (5).

5. The hoisting lock for a prestressed reinforced concrete slab according to claim 1, characterized in that, The adjustment component includes: A threaded rod (15) is rotatably connected in the third slide groove (7) and threadedly connected to the second slider (8); The movable groove (16) is opened on the top surface of the inner wall of the third slide groove (7) and is connected to the outside. The movable groove (16) is rotatably connected to the first sprocket (17), and one end of the first sprocket (17) extends into the third slide groove (7) and is fixed to one end of the threaded rod (15). The second motor (18) is fixedly connected to the boom (4). The output shaft of the second motor (18) is fixedly connected to the second sprocket (19). A chain (20) meshes between the second sprocket (19) and the first sprocket (17).

6. The hoisting lock for a prestressed reinforced concrete slab according to claim 5, characterized in that, One end of the first sprocket (17) is rotatably connected to the third slide (7).

7. The hoisting lock for a prestressed reinforced concrete slab according to claim 1, characterized in that, The bottom ends of the two first sliders (6) are slidably connected to the first groove (3).

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