Lifting frame for precast concrete component

Abstract

The utility model discloses a hoisting frame for a precast concrete component, and relates to the technical field of precast concrete components. The lifting device comprises a lifting plate, two lifting rings are fixedly connected to the outer surface of the upper end of the lifting plate, and electric push rods are arranged at the positions, close to the two ends, of the outer surface of the lower end of the lifting plate; according to the utility model, the fixing piece is matched with the positioning assembly, so that the fixing plate can be used for fixing the prefabricated plates with different lengths, and the worm gear can drive the worm to rotate on the basis that the limiting plate moves downwards to fix the prefabricated plates, thereby adjusting the position relationship between the positioning plate and the prefabricated plates, and improving the positioning accuracy of the prefabricated plates. The prefabricated slabs of different specifications are fixed in multiple directions at the same time, the pressing plates limit the prefabricated slabs under the action of the damping springs and adapt to the positioning plates to fix the prefabricated members of different widths, and the hoisting range of equipment is widened.

Description

Technical Field

[0001] This utility model relates to the field of precast concrete technology, and in particular to a hoisting frame for precast concrete components. Background Technology

[0002] Precast concrete components are the foundation for the precasting of the main structure. Lifting refers to the installation and positioning of equipment by cranes or lifting mechanisms. During inspection or maintenance, various lifting tools are used to lift equipment, workpieces, tools, materials, etc., so as to change their position. Lifting frames are fixed tools for lifting precast concrete components.

[0003] Traditional hoisting frames typically use hooks to align and fix precast components from both ends. This single fixing direction results in poor stability of the precast components during hoisting. Furthermore, the hooks are fixed and cannot be adjusted to accommodate different sizes of the precast concrete components, thus limiting their application. Utility Model Content

[0004] The purpose of this utility model is to solve the problems in the prior art by proposing a hoisting frame for precast concrete components.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a hoisting frame for precast concrete components, including a hoisting plate, two sets of lifting rings are fixedly connected to the upper outer surface of the hoisting plate, and electric push rods are provided on the lower outer surface of the hoisting plate near both ends. A limit plate is provided between the two sets of electric push rods. One end of the electric push rod is fixedly connected to the hoisting plate, and the other end is fixedly connected to the limit plate. A positioning component is provided on the outer surface of the limit plate.

[0006] The lower outer surface of the suspended plate has two sets of symmetrical sliding grooves. A rotating rod is rotatably connected between the two sets of sliding grooves. A motor is installed on one side of the outer surface of the suspended plate at a position corresponding to the rotating rod. The output end of the motor passes through the interior of one set of sliding grooves and is fixedly connected to the rotating rod. The outer surface of the rotating rod is provided with two sets of threads with opposite directions at positions inside the two sets of sliding grooves. A slider is threadedly connected to the outer surface of the rotating rod at a position corresponding to the two sets of sliding grooves. A fixing member is provided on the lower outer surface of the slider.

[0007] Furthermore, the fixing component includes a connecting plate, a fixing plate, and a rectangular hole. The connecting plate is fixedly connected to the lower outer surface of the slider, and the fixing plate is fixedly connected to the lower outer surface of the connecting plate. A rectangular hole is opened on the outer surface of the fixing plate at the position corresponding to the limiting plate, and the limiting plate passes through the two sets of rectangular holes. The fixing plate is L-shaped.

[0008] Furthermore, the positioning component includes a helical rod, a helical sleeve, and a movable groove; the helical sleeve is fixedly connected to the lower outer surface of the hanging plate near the middle, with the open end of the helical sleeve facing downwards; the helical rod is helically connected inside the helical sleeve; a movable groove is opened on the upper outer surface of the limiting plate at a position corresponding to the helical rod; the bottom end of the helical rod penetrates into the interior of the movable groove and is rotatably connected to it; and a worm gear is fixedly connected to the outer surface of the helical rod at a position inside the movable groove.

[0009] Furthermore, the upper outer surface of the limiting plate is provided with mounting grooves on both sides of the movable groove, and threaded rods are rotatably connected to the inner surface of the mounting grooves near the front and rear ends. A worm gear is fixedly connected between the two sets of threaded rods located in the same set of mounting grooves. A slot hole is provided on the inner surface of the mounting groove near the movable groove, and the worm gear passes through the slot hole and meshes with the worm gear. A mounting block is threadedly connected to the outer surface of the threaded rod, and a positioning plate is fixedly connected to the upper outer surface of the mounting block. The positioning plate is L-shaped.

[0010] Furthermore, a pressure plate is provided below the limiting plate, and a guide post is fixedly connected to the upper outer surface of the pressure plate near both ends. One end of the guide post extends through to the top of the limiting plate and is movably connected thereto. A limiting block is fixedly connected to the upper outer surface of the guide post. A shock-absorbing spring is provided on the outer surface of the guide post at the position between the limiting block and the limiting plate, and one end of the shock-absorbing spring is fixedly connected to the limiting block, while the other end is fixedly connected to the limiting plate.

[0011] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0012] In this invention, by setting a fixing component and a positioning component in conjunction, it is possible to fix precast slabs of different lengths using a fixing plate, and also to fix the precast slabs by moving the limiting plate downwards. At the same time, the worm gear drives the worm to rotate, thereby adjusting the positional relationship between the positioning plate and the precast slab. This allows for the simultaneous fixing of precast slabs of different specifications from multiple directions. The pressure plate limits the precast slabs under the action of the shock-absorbing springs and adapts to the positioning plate fixing precast components of different widths, thereby increasing the lifting range of the equipment. Furthermore, the shock-absorbing springs can absorb the vibrations generated during the lifting process, improving the stability of the precast slabs during the lifting process. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a combined view of the mounting block and positioning plate of this utility model;

[0015] Figure 3This is a combined view of the positioning component and the fixing component of this utility model;

[0016] Figure 4 For the present utility model Figure 3 Enlarged view of region A;

[0017] Figure 5 This is a combined view of the threaded rod and worm gear of this utility model.

[0018] Reference numerals: 1. Hanging plate; 2. Hanging ring; 3. Electric push rod; 4. Limiting plate; 5. Positioning assembly; 501. Helical rod; 502. Helical sleeve; 503. Movable groove; 504. Worm gear; 505. Mounting groove; 506. Threaded rod; 507. Worm; 508. Slot; 509. Mounting block; 510. Positioning plate; 6. Slide; 7. Fixing component; 701. Connecting plate; 702. Fixing plate; 703. Rectangular hole; 8. Rotating rod; 9. Motor; 10. Sliding block; 11. Pressure plate; 12. Guide column; 13. Limiting block; 14. Shock-absorbing spring. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0020] Example 1:

[0021] like Figure 1-3 As shown, the present invention proposes a hoisting frame for precast concrete components, including a hoisting plate 1. Two sets of lifting rings 2 are fixedly connected to the upper outer surface of the hoisting plate 1, and electric push rods 3 are provided on the lower outer surface of the hoisting plate 1 near both ends. A limit plate 4 is provided between the two sets of electric push rods 3. One end of the electric push rod 3 is fixedly connected to the hoisting plate 1, and the other end is fixedly connected to the limit plate 4. A positioning component 5 is provided on the outer surface of the limit plate 4. During hoisting, the hoisting equipment is hoisted directly above the precast slab.

[0022] Two sets of sliding grooves 6 are symmetrically opened on the lower outer surface of the hanging plate 1. A rotating rod 8 is rotatably connected between the two sets of sliding grooves 6. A motor 9 is installed on one side of the outer surface of the hanging plate 1 at the position corresponding to the rotating rod 8. The output end of the motor 9 passes through the interior of one set of sliding grooves 6 and is fixedly connected to the rotating rod 8. Two sets of threads with opposite directions are respectively provided on the outer surface of the rotating rod 8 at the position inside the two sets of sliding grooves 6. The output end of the motor 9 drives the rotating rod 8 to rotate in the forward direction. A slider 10 is threadedly connected to the outer surface of the rotating rod 8 at the position corresponding to the two sets of sliding grooves 6. A fixing part 7 is provided on the lower outer surface of the slider 10.

[0023] The fixing component 7 includes a connecting plate 701, a fixing plate 702, and a rectangular hole 703. The connecting plate 701 is fixedly connected to the lower outer surface of the slider 10, and the fixing plate 702 is fixedly connected to the lower outer surface of the connecting plate 701. Under the drive of the rotating rod 8, the two sets of sliders 10 drive the fixing plate 702 to move towards the precast slab until its outer surface is completely in contact with the precast slab. The outer surface of the fixing plate 702 is provided with a rectangular hole 703 at the position corresponding to the limiting plate 4, and the limiting plate 4 passes through the two sets of rectangular holes 703. The fixing plate 702 is L-shaped, so the fixing plate 702 is used to clamp and limit the precast slab.

[0024] Example 2:

[0025] like Figure 2-5 As shown, the difference between this embodiment and embodiment 1 is that the electric push rod 3 is activated, and the electric push rod 3 pushes the limiting plate 4 to move closer to the precast plate. The positioning component 5 includes a spiral rod 501, a spiral sleeve 502, and a movable groove 503. The spiral sleeve 502 is fixedly connected to the lower outer surface of the hanging plate 1 near the middle, and the open end of the spiral sleeve 502 faces downward. The spiral rod 501 is spirally connected inside the spiral sleeve 502. The movable groove 503 is opened at the position corresponding to the spiral rod 501 on the upper outer surface of the limiting plate 4. The bottom end of the spiral rod 501 penetrates into the interior of the movable groove 503 and is rotatably connected to it. A worm gear 504 is fixedly connected to the outer surface of the spiral rod 501 at the position inside the movable groove 503. During the relative movement of the spiral rod 501 and the spiral sleeve 502, the spiral rod 501 drives the worm gear 504 to rotate under the drive of the spiral sleeve 502.

[0026] The upper outer surface of the limiting plate 4 is provided with mounting grooves 505 on both sides of the movable groove 503. Threaded rods 506 are rotatably connected to the inner surface of the mounting grooves 505 near both ends. A worm gear 507 is fixedly connected between the two sets of threaded rods 506 located within the same set of mounting grooves 505. A slot 508 is provided on the inner surface of the mounting groove 505 near the movable groove 503. A worm wheel 504 passes through the slot 508 and meshes with the worm gear 507. Driven by the worm wheel 504, the worm gear 507 drives the corresponding threaded rod 506 to rotate forward. A mounting block 509 is threadedly connected to the outer surface of the threaded rod 506. A positioning plate 510 is fixedly connected to the upper outer surface of the mounting block 509. The positioning plate 510 is L-shaped. The mounting block 509 located within the same set of mounting grooves 505 drives the positioning plate 510 to move closer to the precast slab. The pressure plate 11 limits the precast slab under the action of the shock-absorbing spring 14.

[0027] Example 3:

[0028] like Figure 3 As shown, the difference between this embodiment and Embodiments 1 and 2 is that a pressure plate 11 is provided below the limiting plate 4, and a guide post 12 is fixedly connected to the upper outer surface of the pressure plate 11 near both ends. One end of the guide post 12 extends through to the upper part of the limiting plate 4 and is movably connected thereto. A limiting block 13 is fixedly connected to the upper outer surface of the guide post 12. A shock-absorbing spring 14 is provided on the outer surface of the guide post 12 at the position between the limiting block 13 and the limiting plate 4. One end of the shock-absorbing spring 14 is fixedly connected to the limiting block 13, and the other end is fixedly connected to the limiting plate 4. The pressure plate 11 limits the precast plate under the action of the shock-absorbing spring 14, thereby adapting the positioning plate 510 to fix precast parts of different widths.

[0029] The working process and principle of this utility model are as follows:

[0030] Step 1: During hoisting, hoist the hoisting equipment directly above the precast slab, then turn on the motor 9. The output end of the motor 9 drives the rotating rod 8 to rotate in the forward direction. Under the drive of the rotating rod 8, the two sets of sliders 10 drive the fixed plate 702 to move closer to the precast slab until its outer surface is completely in contact with the precast slab. The fixed plate 702 clamps and limits the precast slab.

[0031] Step 2: Then turn on the electric push rod 3. The electric push rod 3 pushes the limiting plate 4 to move closer to the precast plate. During this process, the spiral rod 501 drives the worm wheel 504 to rotate under the drive of the spiral sleeve 502. The worm 507 drives the corresponding threaded rod 506 to rotate in the forward direction under the drive of the worm wheel 504.

[0032] Step 3: The mounting block 509 located inside the same set of mounting slots 505 drives the positioning plate 510 to move closer to the precast slab. The pressure plate 11 limits the precast slab under the action of the shock-absorbing spring 14, thereby adapting the positioning plate 510 to fix precast parts of different widths, improving the hoisting range of the equipment, and also using the shock-absorbing spring 14 to absorb the vibration generated during the hoisting process, improving the stability of the precast slab during the hoisting process.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A hoisting frame for precast concrete components, comprising a hoisting plate (1), characterized in that, Two sets of lifting rings (2) are fixedly connected to the upper outer surface of the hanging plate (1), and electric push rods (3) are provided on the lower outer surface of the hanging plate (1) near both ends. A limit plate (4) is provided between the two sets of electric push rods (3). One end of the electric push rod (3) is fixedly connected to the hanging plate (1), and the other end is fixedly connected to the limit plate (4). A positioning component (5) is provided on the outer surface of the limit plate (4). The lower outer surface of the hanging plate (1) is symmetrically provided with two sets of sliding grooves (6). A rotating rod (8) is rotatably connected between the two sets of sliding grooves (6). A motor (9) is provided on one side of the outer surface of the hanging plate (1) at the position corresponding to the rotating rod (8). The output end of the motor (9) passes through the interior of one set of sliding grooves (6) and is fixedly connected to the rotating rod (8). Two sets of threads with opposite directions are provided on the outer surface of the rotating rod (8) at the positions inside the two sets of sliding grooves (6). A slider (10) is threadedly connected to the outer surface of the rotating rod (8) at the position corresponding to the two sets of sliding grooves (6). A fixing member (7) is provided on the lower outer surface of the slider (10).

2. The hoisting frame for precast concrete components according to claim 1, characterized in that, The fixing member (7) includes a connecting plate (701), a fixing plate (702) and a rectangular hole (703). The lower outer surface of the slider (10) is fixedly connected to the connecting plate (701), and the lower outer surface of the connecting plate (701) is fixedly connected to the fixing plate (702). The outer surface of the fixing plate (702) is provided with a rectangular hole (703) at the position corresponding to the limiting plate (4), and the limiting plate (4) passes through the two sets of rectangular holes (703). The fixing plate (702) is L-shaped.

3. The hoisting frame for precast concrete components according to claim 2, characterized in that, The positioning component (5) includes a spiral rod (501), a spiral sleeve (502), and a movable groove (503); the spiral sleeve (502) is fixedly connected to the lower outer surface of the hanging plate (1) near the middle, and the open end of the spiral sleeve (502) faces downward. The spiral rod (501) is spirally connected inside the spiral sleeve (502). The movable groove (503) is opened at the position corresponding to the spiral rod (501) on the upper outer surface of the limiting plate (4). The bottom end of the spiral rod (501) penetrates into the interior of the movable groove (503) and is rotatably connected to it. A worm gear (504) is fixedly connected to the outer surface of the spiral rod (501) at the position inside the movable groove (503).

4. The hoisting frame for precast concrete components according to claim 3, characterized in that, The upper outer surface of the limiting plate (4) is provided with mounting grooves (505) on both sides of the movable groove (503), and the inner surface of the mounting groove (505) is rotatably connected with threaded rods (506) near the front and rear ends. A worm gear (507) is fixedly connected between the two sets of threaded rods (506) located in the same set of mounting grooves (505). A slot hole (508) is provided on the inner surface of the mounting groove (505) near the movable groove (503). The worm wheel (504) passes through the slot hole (508) and meshes with the worm gear (507). The outer surface of the threaded rod (506) is threadedly connected with a mounting block (509), and the upper outer surface of the mounting block (509) is fixedly connected with a positioning plate (510). The positioning plate (510) is L-shaped.

5. The hoisting frame for precast concrete components according to claim 1, characterized in that, A pressure plate (11) is provided below the limiting plate (4), and a guide post (12) is fixedly connected to the upper outer surface of the pressure plate (11) near both ends. One end of the guide post (12) extends through to the upper part of the limiting plate (4) and is movably connected thereto. A limiting block (13) is fixedly connected to the upper outer surface of the guide post (12). A shock-absorbing spring (14) is provided on the outer surface of the guide post (12) at the position between the limiting block (13) and the limiting plate (4). One end of the shock-absorbing spring (14) is fixedly connected to the limiting block (13), and the other end is fixedly connected to the limiting plate (4).

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