Combined hoisting tool for precast concrete cover plate

Abstract

The utility model relates to a combined hoisting tool for a precast concrete cover plate. The combined hoisting tool comprises a movable frame, a hoisting machine and a hoisting assembly, wherein the hoisting assembly comprises a hoisting ring, a cross beam, a hoisting rod, a clamping seat, a spring and an adjusting seat; a hoisting machine is arranged in the middle of the movable frame, a hoisting ring connected with the hoisting machine is arranged in the middle of the beam, hoisting rods are arranged on the two sides of the beam, and clamping bases are arranged on the lower portions of the hoisting rods. The clamping seat is in a U shape with an opening towards one side, a threaded section is arranged on the hanging rod, an adjusting nut is arranged on the threaded section, the adjusting seat is arranged on the hanging rod in a sleeving mode and can slide up and down along the hanging rod, the spring is arranged on the hanging rod in a sleeving mode and located between the adjusting seat and the adjusting nut, and pressing plates are arranged on the two sides of the adjusting seat. The cover plate hoisting device can adapt to cover plate structures with different thicknesses, the clamping seat can be conveniently clamped on the cover plate during installation, single-side clamping is adopted, the adjustable adjusting seat is additionally arranged in the middle area, the cover plate is limited from the upper portion, the structure is stable, and a convenient tool is provided for hoisting construction of the cover plate.

Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering, in particular to a prefabricated concrete cover plate combined lifting tool. Background Art

[0002] Precast concrete components are mechanized concrete products. The production equipment technology of precast concrete components is one of the current trends in the construction industrialization. The corresponding traditional cast-in-place concrete has more advantages. It is widely used in construction, transportation, water conservancy, high-speed rail, road construction and other fields, and plays an important role in the national economy. The small precast component production line is a special equipment for producing concrete parts. Compared with traditional construction production, it improves the quality of construction products while saving labor and increasing production. Concrete components are mainly completed by concrete mixing stations, concrete component production lines, transport vehicles and other machinery.

[0003] Prefabricated concrete components of pipe trenches are used as the boundaries of isolated and enclosed spaces in exhibition halls, ensuring the safety of pedestrians and vehicles and the neatness and beauty of road edges. Prefabricated cover plates have become indispensable construction materials for pipe trenches, culverts, and bridges. Prefabricated cover plates used in public construction projects are generally prefabricated concrete or tempered steel plates, with relatively large sizes and specifications. Each prefabricated cover plate weighs more than 150Kg, and is a heavy prefabricated cover plate component.

[0004] The existing moving method is generally manual lifting and placing operations, which reduces work efficiency. For the mechanical lifting structure, since the cover plates are arranged in parallel, they can only be lifted from one side. There is no corresponding lifting workpiece in the prior art. Based on this, it is necessary to study a precast concrete cover plate combined lifting tool. Utility Model Content

[0005] In view of this, the purpose of the utility model is to provide a prefabricated concrete cover plate combined lifting tool, which effectively solves the problem that the existing heavy cover plate manual lifting and placing is too labor-intensive and has low work efficiency.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a precast concrete cover plate combined lifting tool, including a movable frame, a lifting machine and a lifting assembly, the lifting assembly including a lifting ring, a cross beam, a hanging rod, a clamping seat, a spring and an adjusting seat; a lifting machine is arranged in the middle of the movable frame, a lifting ring connected to the lifting machine is arranged in the middle of the cross beam, hanging rods are arranged on both sides of the cross beam, and a clamping seat is arranged at the lower part of the hanging rod; the clamping seat is U-shaped opening to one side, a threaded section is arranged on the hanging rod, an adjusting nut is arranged on the threaded section, the adjusting seat is mounted on the hanging rod and can slide up and down along the hanging rod, the spring is mounted on the hanging rod and is located between the adjusting seat and the adjusting nut, and pressure plates are arranged on both sides of the adjusting seat.

[0007] Furthermore, the movable frame is a door-type frame, and movable wheels are arranged on both sides of the door-type frame.

[0008] Furthermore, the hoisting machine is an electric hoist, and a mounting seat is provided in the middle of the portal frame, and the electric hoist is fixed on the mounting seat.

[0009] Furthermore, the adjustment seat includes an upper adjustment plate, a lower adjustment plate and an oblique support. The upper adjustment plate and the lower adjustment plate are arranged at intervals and connected by the oblique support to form a trapezoidal structure with a larger bottom and a smaller top.

[0010] Furthermore, a connecting sleeve is provided on the upper portion of the suspension rod, and the crossbeam is fixedly sleeved in the connecting sleeve.

[0011] Furthermore, a pressing sleeve is fixedly provided at the lower part of the adjusting nut, and the pressing sleeve is sleeved on the suspension rod with a gap and pressed against the upper part of the adjusting seat.

[0012] Furthermore, an operating rod is provided on the adjusting nut.

[0013] The beneficial effect of the above technical solution is: in response to the problem of difficulty in transporting and moving heavy cover plates in parallel in the prior art, the utility model provides a movable lifting structure, which can facilitate the lifting of the cover plates through a mobile frame, and perform lifting, lifting and translation, thereby realizing the lifting and transportation of the cover plates, and the process does not require manual lifting, thereby reducing labor intensity.

[0014] Structurally, the utility model uses a crossbeam as a force-bearing structure, and hangers are provided on both sides of the crossbeam. A clamping seat is provided at the lower part of the hanger, and the clamping seat can be inserted into the cover plate from one side. In the preferred embodiment, the cover plate can be adaptively clamped according to different thicknesses. However, this structure is difficult to implement. For this reason, the utility model adopts an adjustable clamping structure. In a specific implementation method, the hanger is used as the basis, and a threaded section is arranged on the upper part of the hanger, and an adjusting nut is arranged on the threaded section to provide a structure for applying force downward. Spring reset is used for upward reset, and the adjusting seat is arranged between the adjusting nut and the spring, thereby realizing the lifting and lowering adjustment of the adjusting seat. The pressure plate at the lower part of the adjusting seat forms a relative relationship with the lower edge of the clamping seat, and the cover plate is clamped to ensure that it is firmly fixed. At the same time, it has a certain adaptability to the thickness of the cover plate, and it is convenient to clamp the clamping seat on the cover plate, which is convenient for construction and improves construction efficiency.

[0015] At the same time, the adjustment seat serves as the upper force-bearing structure, which is mainly used to stabilize the state of the cover plate. The lower edge of the holder serves as the main force-bearing structure. The structural configuration of the adjustment seat is a trapezoidal structure, which has good load resistance capacity.

[0016] Therefore, the utility model can adapt to cover plate structures of different thicknesses, and is convenient for installing the holder on the cover plate during installation. It is easy to install, improves construction efficiency, and reduces construction difficulty. It adopts single-sided clamping and adds an adjustable adjustment seat in the middle area to provide a limit for the cover plate from the top. The structure is stable and provides a convenient tool for the cover plate lifting construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a diagram of the use state of the utility model;

[0018] Figure 2 It is a schematic diagram of the implementation structure of the hoisting assembly;

[0019] Figure 3 for Figure 2 Another perspective structural diagram of;

[0020] Figure 4 It is a schematic diagram of the main structure of the hoisting assembly;

[0021] Figure 5 for Figure 4 AA section view;

[0022] Figure 6 It is a side view structural diagram of the lifting assembly.

[0023] Figure markings: 1-movable frame, 2-moving wheel, 3-mounting seat, 4-electric hoist, 5-crossbeam, 6-suspender rod, 7-connecting sleeve, 8-adjusting nut, 9-operating lever, 10-pressing sleeve, 11-adjusting seat, 111-lower adjusting plate, 112-inclined plate, 113-upper adjusting plate, 12-pressing plate, 13-spring, 14-holder, 15-cover plate. DETAILED DESCRIPTION

[0024] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods:

[0025] Embodiment 1, this embodiment aims to provide a precast concrete cover plate combined lifting tool, which is mainly used for lifting and transporting precast concrete cover plates of trench concrete. Such cover plates need to be placed one by one during lifting, or lifted from one side during removal. This embodiment aims to solve the problem that the existing heavy cover plates are too labor-intensive and inefficient to lift and place manually. This embodiment provides a precast concrete cover plate combined lifting tool.

[0026] like Figure 1As shown in the figure, a precast concrete cover plate combined lifting tool includes a mobile frame 1, a lifting machine and a lifting assembly. In this embodiment, the mobile frame 1 serves as an installation body. The mobile frame 1 is a portal frame. Moving wheels 2 are arranged on both sides of the portal frame. The moving wheels 2 are universal wheels, so that the mobile frame 1 can be moved across the trench and along both sides of the trench.

[0027] like Figure 1 As shown in the figure, the hoisting machine is an electric hoist 4, and a mounting seat 3 is arranged in the middle of the portal frame. The electric hoist 4 is fixed on the mounting seat 3, and the electric hoist 4 is used to apply the lifting power. The structure can be fixed in the middle area of ​​the portal frame, and a control handle and a hook are extended downward. According to the weight of the cover plate, a 1T+ electric chain hoist can be used.

[0028] like Figure 2 As shown in the figure, the lifting assembly includes a lifting ring, a crossbeam 5, a suspension rod 6, a holder 14, a spring 13 and an adjustment seat 11; a lifting ring connected to the lifting machine is arranged in the middle of the crossbeam 5, the lifting ring is hung with a hook, and is lifted and lowered under the action of the electric hoist 4, suspension rods 6 are arranged on both sides of the crossbeam 5, the suspension rods 6 extend downward, and a connecting sleeve is arranged on the upper part of the suspension rod 6, and the crossbeam 5 is fixedly sleeved in the connecting sleeve to realize the assembly structure of the crossbeam 5 and the suspension rod 6.

[0029] A clamping seat 14 is provided at the lower part of the suspension rod 6; the clamping seat 14 is in a U-shape opening to one side, and the structure can be clamped into the side of the cover plate from one side. Specifically, two clamping seats 14 are provided, and rubber gaskets are provided on the inner walls of the clamping seats 14 to avoid damage to the standard of the cover plate. The lifting ring of the beam 5 is aligned with the middle part of the cover plate, and the clamping seat 14 is arranged on both sides. The clamping is applied from the two side areas of the cover plate, and the driving force is applied from the middle to lift the cover plate.

[0030] like Figure 5 As shown in the figure, in order to ensure the directional lifting, a threaded section is provided on the lifting rod 6 in this embodiment, and an adjusting nut 8 is provided on the threaded section. The adjusting seat 11 is mounted on the lifting rod 6 and can slide up and down along the lifting rod 6. Pressure plates 12 are provided on both sides of the adjusting seat 11. The pressure plate 12 can be an enlarged structure during implementation, and a gasket is arranged at the bottom. The gasket is such as a rubber sheet structure to avoid damage to the upper surface of the cover plate. By adjusting the adjusting seat 11, the adjusting seat 11 is moved up and down to achieve the adjustment of the corresponding thickness of the cover plate. The adjustment here is not only adapted to different cover plate thicknesses, but also simplifies the difficulty of inserting the clamping seat 14. The cover plate is inserted with a larger opening, and the cover plate is firmly clamped after adjustment to ensure the stability of the lifting.

[0031] In order to facilitate the return, in this embodiment, the spring 13 is mounted on the suspension rod 6 and is located between the adjustment seat 11 and the adjustment nut 8. The spring 13 structure can automatically reset the adjustment seat 11 after the adjustment nut 8 moves back, and open the bayonet of the slot to facilitate the clamping operation.

[0032] During the on-site construction of this embodiment, the adjustable nut 8 is first retracted, and the spring 13 is used to expand the gap between the pressure plate 12 and the lower edge of the socket 14, and the cover plate is inserted into the gap and adjusted according to the size of the cover plate. After adjustment is in place, the adjusting nut 8 is tightened to make the pressure plate 12 press the cover plate. The lifting personnel can lift the cover plate through the electric hoist 4, push or move the electric drive moving wheel, transport the cover plate to the installation position, slowly operate the lifting device, and smoothly lower the lifting device. After the cover plate is installed, the elevation and flatness can be re-measured. The structure can adapt to cover plate structures of different thicknesses, which is convenient for the bracket 14 to be clamped on the cover plate during installation. It adopts single-sided clamping and adds an adjustable adjustment seat 11 in the middle area to provide limit for the cover plate from the top. The structure is stable, which provides convenient tools for the cover plate lifting construction, greatly improves the cover plate installation efficiency, effectively guarantees the quality of engineering construction, provides necessary working conditions for subsequent construction, greatly reduces the resource consumption and engineering cost of the cover plate and subsequent processes, and creates good economic benefits.

[0033] Embodiment 2: This embodiment is basically the same as Embodiment 1, except that this embodiment further describes the structure of the adjustment seat 11.

[0034] In this embodiment, Figure 6 As shown in , the adjustment seat 11 includes an upper adjustment plate 113, a lower adjustment plate 111 and an oblique support 112. The upper adjustment plate 113 and the lower adjustment plate 111 are arranged at intervals and connected by the oblique support 112 to form a trapezoidal structure with a larger bottom and a smaller top.

[0035] In this embodiment, the adjustment seat 11 serves as an upper force-bearing structure, mainly used to stabilize the state of the cover plate, and the lower edge of the clamping seat 14 serves as the main force-bearing structure. The structure of the adjustment seat 11 is a trapezoidal structure, which has a good load resistance capacity.

[0036] Embodiment 3: This embodiment is basically the same as Embodiment 1, except that this embodiment further describes the structure of the adjusting nut 8.

[0037] In this embodiment, a pressing sleeve 10 is fixedly arranged at the lower part of the adjusting nut 8, and the pressing sleeve 10 is sleeved on the suspension rod 6 with a gap and pressed against the upper part of the adjusting seat 11. An operating rod 9 is arranged on the adjusting nut 8.

[0038] This embodiment provides a pressing sleeve at the lower part of the adjusting nut 8 to increase the length of the threaded section, avoid the adjusting seat 11 being sleeved on the threaded section, ensure the smooth lifting and lowering of the adjusting seat 11, and facilitate the rotation of the adjusting nut 8 through the operating lever, making the operation easier.

[0039] The above-described implementation methods of the utility model do not constitute a limitation on the protection scope of the utility model. The basic concept of the utility model is to use a suspension rod as a basis, to configure a threaded section at the upper part of the suspension rod, to configure an adjustment nut at the threaded section, to provide a downward force structure, to use a spring to reset upward, to configure the adjustment seat between the adjustment nut and the spring, thereby achieving the lifting and lowering adjustment of the adjustment seat. Any modification, equivalent substitution and improvement made within the spirit and principle of the utility model shall be included in the protection scope of the claims of the utility model.

Claims

1. A prefabricated concrete cover plate combined lifting tool, characterized in that: It includes a movable frame, a hoisting machine and a hoisting component, and the hoisting component includes a lifting ring, a cross beam, a hanging rod, a clamping seat, a spring and an adjusting seat; a hoisting machine is arranged in the middle of the movable frame, a lifting ring connected to the hoisting machine is arranged in the middle of the cross beam, hanging rods are arranged on both sides of the cross beam, and a clamping seat is arranged at the lower part of the hanging rod; the clamping seat is U-shaped with an opening to one side, a threaded section is arranged on the hanging rod, an adjusting nut is arranged on the threaded section, the adjusting seat is mounted on the hanging rod and can slide up and down along the hanging rod, the spring is mounted on the hanging rod and is located between the adjusting seat and the adjusting nut, and pressure plates are arranged on both sides of the adjusting seat.

2. The precast concrete cover plate combined lifting tool according to claim 1 is characterized in that: The movable frame is a door-type frame, and movable wheels are arranged on both sides of the door-type frame.

3. The precast concrete cover plate combined lifting tool according to claim 2 is characterized in that: The hoisting machine is an electric hoist, and a mounting seat is arranged in the middle of the portal frame, and the electric hoist is fixed on the mounting seat.

4. The precast concrete cover plate combined lifting tool according to claim 1 is characterized in that: The adjustment seat comprises an upper adjustment plate, a lower adjustment plate and an oblique support. The upper adjustment plate and the lower adjustment plate are arranged at intervals and connected by the oblique support to form a trapezoidal structure with a larger bottom and a smaller top.

5. The precast concrete cover plate combined lifting tool according to claim 1 is characterized in that: A connecting sleeve is arranged on the upper part of the suspension rod, and the crossbeam is fixedly sleeved in the connecting sleeve.

6. The precast concrete cover plate combined lifting tool according to claim 1 is characterized in that: A pressing sleeve is fixedly arranged at the lower part of the adjusting nut, and the pressing sleeve is sleeved on the suspension rod with a gap and pressed against the upper part of the adjusting seat.

7. The precast concrete cover plate combined lifting tool according to any one of claims 1 to 6, characterized in that: An operating rod is arranged on the adjusting nut.

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