Concrete slab hoisting positioning mechanism and positioning method

Abstract

The present invention provides a concrete slab lifting and positioning mechanism and a positioning method, wherein the positioning mechanism includes a horizontal plate, two groups of support arms and a group of telescopic devices, and the side wall is suspended by the lifting mechanism. At the same time, the two groups of support arms on the bottom plate are supported on the surface of the side wall, so that the side wall forms a three-point support structure, and the angle between the side wall and the bottom plate is not greater than 90 degrees, and the support point of the support arm to the side wall is located directly above the installation position on the bottom plate; at the same time, the lower end of the side wall is pulled by the telescopic device to move the lower end of the side wall toward the middle side of the bottom plate, and finally the two groups of support arms serve as the support points of the side wall, and the pulling forces of the lifting mechanism and the telescopic device act on the upper and lower ends of the side wall respectively, and finally the side wall is vertically aligned with the installation position on the bottom plate, and is gradually lowered for installation; the above-mentioned concrete slab lifting and positioning mechanism and positioning method adopt a mechanical structure to replace manpower to perform side wall installation and positioning, reduce the difficulty of installation and positioning, and are convenient and reliable to operate and save manpower.

Description

Technical Field

[0001] The present invention relates to an auxiliary tool for hoisting a building plate, and in particular to a concrete plate hoisting positioning mechanism and a positioning method. Background Art

[0002] Prefabricated house construction refers to prefabricated structures such as the base plate, side walls and stairs required for building a house, which are prefabricated by the manufacturer in advance. When the house is to be built, the above prefabricated structures are transported to the construction site for assembly. It has the characteristics of simple construction and fast and efficient house construction. During the installation of the side walls of prefabricated house buildings, the lifting belts in the lifting mechanism are connected to the steel bars on the side walls, and the side walls are lifted, aligned and lowered to the installation position of the base plate before grouting and reinforcement.

[0003] At present, during the installation and positioning process between the side wall and the installation position on the base plate, manual positioning and adjustment are mostly adopted. That is, multiple construction workers hold the side wall by hand and direct the lifting mechanism operator to lower the side wall. During this process, due to the large weight and inertia of the side wall, the shaking generated during the lowering process is difficult to control, making the positioning and installation of the side wall more difficult. At the same time, the method of construction workers manually controlling the side wall also poses a great safety hazard. Summary of the Invention

[0004] The purpose of the present invention is to overcome the shortcomings of the background technology and provide a concrete slab hoisting and positioning mechanism, and a positioning method using the above concrete slab hoisting and positioning mechanism.

[0005] The embodiments of the present invention are achieved through the following technical solutions:

[0006] In a first aspect, the present invention provides a concrete slab hoisting and positioning mechanism for hoisting and positioning a side wall hoisted by the hoisting mechanism to an installation position on a base plate, comprising:

[0007] a transverse plate, which is supported on the base plate by two sets of bases;

[0008] Two sets of support arms are oppositely arranged at both ends of the horizontal plate, and the upper ends of the two sets of support arms are inclined toward the outside of the bottom plate. The side walls are obliquely supported above the bottom plate by the hoisting mechanism and the two sets of support arms, and the angle between the side walls and the bottom plate is not greater than 90°;

[0009] The telescopic device is arranged in the middle of the horizontal plate. The telescopic device has a group of telescopic arms facing the side wall. The telescopic arms are connected to a group of drawstrings sleeved on the lower outer wall of the side wall.

[0010] In addition, the upper end of each group of support arms is provided with at least one group of rotating wheels that are in rolling contact with the surface of the side wall.

[0011] In addition, as one of the preferred methods, each group of the bases is also provided with a group of sleeves facing the same direction as the telescopic arms, and each group of the sleeves is internally threaded with a group of adjusting screws that can be screwed in / out, and a connecting ring is also provided on the end of the adjusting screw facing the side wall, and the pull belt is passed through the two groups of connecting rings.

[0012] In addition, as one of the preferred embodiments, two groups of positioning piles are provided in the base, and the distance between the two groups of positioning piles is equal to the distance between any two adjacent groups of positioning holes on the bottom plate;

[0013] A group of positioning pins is inserted into each group of positioning piles, and the lower ends of the positioning pins are inserted into the positioning holes.

[0014] In addition, as one of the preferred embodiments, in each group of the bases, the connecting line between the two groups of the positioning piles is perpendicular to the longitudinal extension direction of the transverse plate.

[0015] Preferably, in some embodiments, a group of connectors are further provided at the end of the telescopic arm, and a group of plug rods are respectively provided at both ends of the pull belt, and both groups of plug rods are vertically inserted into the connector in a pluggable manner.

[0016] Preferably, a plurality of fixing positions are evenly spaced apart on the transverse plate, and the lower ends of each group of support arms are detachably mounted in the fixing positions by bolts.

[0017] Preferably, the adjusting screw has a first end and a second end opposite to each other, wherein the first end of the adjusting screw is provided with the connecting ring, and the second end is provided with a group of force holes, and the force holes are used to pass a force rod for screwing the adjusting screw.

[0018] In a second aspect, the present invention provides a positioning method using the aforementioned concrete slab hoisting and positioning mechanism, defining the side of the base plate on which the side wall is mounted as the installation side of the base plate, and the positioning method comprises the following steps:

[0019] S1. Install the horizontal plate onto the base plate through the two sets of bases, so that the horizontal plate is parallel to the installation side of the base plate, and the contact surfaces of the upper ends of the two sets of support arms with the side walls are directly above the several positioning holes on the installation side;

[0020] S2. Adjust the lifting mechanism so that the side wall rests on the two sets of support arms, and the angle between the side wall and the bottom plate is no greater than 90°;

[0021] S3. Use the telescopic device to drive the pull belt to pull the lower end of the side wall into the base plate, so that the side wall is adjusted to a vertical state and the orthographic projection of the side wall in the base plate coincides with the installation position;

[0022] S4. Lower the side wall to the installation position of the base plate.

[0023] In addition, further, the step S3 includes the following sub-steps:

[0024] S3.0. Use the telescopic device to drive the pull belt to pull the lower end of the side wall into the bottom plate to keep the side wall vertical;

[0025] S3.1. Determine whether the orthographic projection of the side wall within the base plate coincides with the installation position;

[0026] S3.2: If yes, proceed to step S4; if not, adjust the adjusting screw in the sleeve on at least one side to move the side wall corner on the same side toward the inside of the bottom plate, and repeat step S3.1.

[0027] The technical solutions of the embodiments of the present invention have at least the following advantages and beneficial effects:

[0028] The concrete slab lifting and positioning mechanism and positioning method of the present invention suspend the side wall through the lifting mechanism, and at the same time, the two groups of support arms on the base plate are supported on the surface of the side wall, so that the side wall forms a three-point support structure, and the angle between the side wall and the base plate is not greater than 90°, and the support point of the support arm to the side wall is located directly above the installation position on the base plate; at the same time, the lower end of the side wall is pulled by the telescopic device to move the lower end of the side wall toward the middle side of the base plate, and finally the two groups of support arms serve as the support points of the side wall, and the pulling forces of the lifting mechanism and the telescopic device act on the upper and lower ends of the side wall respectively, and finally the side wall is vertically aligned with the installation position on the base plate, and the side wall can be positioned and installed by gradually lowering the side wall.

[0029] The above-mentioned concrete slab hoisting and positioning mechanism and positioning method adopt a mechanical structure to replace manpower for side wall installation and positioning, thereby reducing the difficulty of installation and positioning, and making the operation convenient and reliable while saving manpower. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 The three-dimensional structure of the concrete plate hoisting and positioning mechanism of the present invention Figure 1 ;

[0031] Figure 2 The three-dimensional structure of the concrete plate hoisting and positioning mechanism of the present invention Figure 2 ;

[0032] Figure 3 for Figure 1 An enlarged view of part A;

[0033] Figure 4 for Figure 1 An enlarged view of part B;

[0034] Figure 5 It is a side view of the concrete slab hoisting and positioning mechanism of the present invention;

[0035] Icons: 10-base plate, 100-positioning hole, 101-anchor bolt, 11-side wall, 110-rebar, 12-hoisting mechanism, 20-base, 200-positioning pile, 201-positioning pin, 21-cross plate, 210-fixing position, 22-support arm, 220-turnwheel, 221-bolt, 23-sleeve, 230-adjusting screw, 231-connecting ring, 232-force hole, 24-pull strap, 240-insertion rod, 25-telescopic device, 250-telescopic arm, 251-connecting head, 252-hanging bracket. DETAILED DESCRIPTION

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of 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. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0037] The invention discloses a concrete slab hoisting and positioning mechanism and a positioning method.

[0038] Example 1:

[0039] Reference Figures 1 to 4 This embodiment provides a concrete slab hoisting and positioning mechanism, which is used to hoist and position the side wall 11 hoisted by the hoisting mechanism 12 to the installation position on the base plate 10.

[0040] Reference Figure 1 The hoisting mechanism 12 is any existing type of hoisting equipment, and its lower end is connected to the steel bar 110 on the side wall 11 through a sling.

[0041] The base plate 10 has four sets of side edges. According to the actual needs of house construction, the four sets of side edges are all installation sides for installing the side walls 11. The upper surface of each set of installation sides is an installation position, and positioning holes 100 are evenly spaced on the installation position. The positioning holes 100 are prefabricated when the base plate 10 is produced.

[0042] The hoisting and positioning mechanism includes the following structure:

[0043] A set of transverse plates 21 , two sets of support arms 22 and a set of telescopic devices 25 .

[0044] The horizontal plate 21 is supported on the bottom plate 10 by two sets of bases 20. When a side of the bottom plate 10 is determined to be the installation side where the side wall 11 is currently to be installed, the horizontal plate 21 must be built parallel to the installation side. Figure 1When the upper left side of the bottom plate 10 is the installation side, the horizontal plate 21 needs to be parallel to the installation side after it is built. The horizontal plate 21 is supported by the base 20 so that a certain height space is left between the horizontal plate 21 and the bottom plate 10.

[0045] The two groups of support arms 22 are relatively arranged at the two ends of the horizontal plate 21. In this embodiment, the upper surface of the horizontal plate 21 is evenly spaced with multiple fixing positions 210 in its own length direction. The two groups of support arms 22 are detachably mounted on the fixing positions 210 at both ends of the horizontal plate 21 by bolts 221.

[0046] It is easy to understand that in other embodiments, the distance between the two groups of support arms 22 can be flexibly set according to the width of the side wall 11 , and the support arms 22 can be installed in a suitable fixing position 210 .

[0047] In this embodiment, the lower ends of the two groups of support arms 22 are fixed on the horizontal plate 21, and the upper ends are inclined toward the outside of the base plate 10. The upper ends of the support arms 22 are used to contact the side walls 11. The contact surface on the support arms 22 is located directly above the positioning holes 100 on the installation position. In other words, the contact surface of the side wall 11 is just above a row of positioning holes 100.

[0048] The three-point support structure of the side wall 11 is formed by the suspension of the hoisting mechanism 12 and the support of the two sets of support arms 22. Due to the support relationship of the three-point support structure, the angle between the inner side surface of the side wall 11 and the upper surface of the bottom plate 10 is not greater than 90 degrees. At this time, referring to Figure 5 Since an anchor bolt 101 is inserted into the positioning hole 100 on the installation side, the lower end of the side wall 11 is located on the upper left side of the anchor bolt 101, that is, the lower end of the side wall 11 is located outside the installation position.

[0049] Reference Figure 2 and Figure 4 The telescopic device 25 is arranged in the middle of the horizontal plate 21. The telescopic device 25 can adopt common pneumatic / hydraulic piston cylinders, screw rods that can be rotated forward / backward, and linear motion modules. In this embodiment, it adopts a small-stroke hydraulic cylinder controlled by a PLC control system. It is installed below the mounting position 21 in the middle of the horizontal plate 21 through a bracket 252, and the extension and retraction of its telescopic arm 250 can be controlled by a PLC controller.

[0050] In this embodiment, the telescopic arm 250 faces the side wall 11. Figure 1 and Figure 3 The telescopic arm 250 is connected to a set of pull straps 24 which are sleeved on the lower outer wall of the side wall 11. Figure 5 The pull belt 24 is pulled to the right by the telescopic arm 250, so that the lower end of the side wall 11 moves slightly to the right, and the side wall 11 remains vertical.

[0051] During the process of lowering the hoisting mechanism 12 , the telescopic arm 250 is continuously fine-tuned so that the pull belt 24 pulls the lower end of the side wall 11 , so that the side wall 11 is always kept vertical during the lowering process.

[0052] In some embodiments, the upper end of each group of the support arms 22 is provided with at least one group of rotating wheels 220 that are in rolling contact with the surface of the side wall 11. During the lowering process of the side wall 11, the sliding friction between the side wall 11 and the support arm 22 is converted into rolling friction, thereby reducing the wear on the side wall 11 and the support arm 22, wherein the rotating wheels 220 are rubber wheels.

[0053] In addition, in some embodiments, in order to ensure that both sides of the lower end of the side wall 11 can be aligned with the installation position during the lowering process, Figure 1 and Figure 3 Each group of the bases 20 is also provided with a group of sleeves 23 facing the same direction as the telescopic arms 250, and each group of the sleeves 23 is internally threadedly connected to a group of adjusting screws 230 that can be screwed in / out, wherein the adjusting screws 230 have a first end and a second end that are opposite, and the first end of the adjusting screws 230 faces the side wall 11, wherein the first end of the adjusting screws 230 is provided with a connecting ring 231, and the pull belt 24 is passed through the connecting ring 231, and the second end of the adjusting screws 230 is provided with a group of force holes 232, and the force holes 232 are used to pass a force rod for screwing the adjusting screws 230, and the adjusting screws 230 are screwed by the force rod to make the connecting ring 231 move toward the second end of the adjusting screws 230, thereby driving the lower end corners of the side walls 11 to move toward the inner side of the bottom plate 10, thereby prompting the corners of the side walls 11 to be aligned with the mounting positions up and down.

[0054] In this embodiment, since the four sides of the bottom plate 10 are all provided with positioning holes 100, referring to Figure 3 Two groups of positioning piles 200 are provided in the base 20, and the distance between the two groups of positioning piles 200 is equal to the distance between any two adjacent groups of positioning holes 100 on the base plate 10; each group of the positioning piles 200 is penetrated by a group of positioning pins 201, and the lower ends of the positioning pins 201 are inserted into the positioning holes 100, so that the base 20 can be conveniently installed on the base plate 10.

[0055] In addition, refer to Figure 3 In each group of the base 20, the connecting line between the two groups of positioning piles 200 is perpendicular to the length extension direction of the horizontal plate 21, that is, the two groups of positioning piles 200 are arranged front and back. When the support arm 22 supports the side wall 11, the front and back arrangement of the positioning piles 200 can provide more stable support.

[0056] Reference Figure 4In order to facilitate the disassembly and assembly of the pull strap 24, a group of plug rods 240 are provided at each end of the pull strap 24, and a group of connecting heads 251 are also provided at the end of the telescopic arm 250. The two groups of plug rods 240 can be vertically inserted into the connecting heads 251. After the side wall 11 is installed, the plug rods 240 can be pulled out.

[0057] Example 2:

[0058] This embodiment provides a positioning method using the concrete slab hoisting and positioning mechanism of the first embodiment, which includes the following steps:

[0059] S1. Install the horizontal plate 21 on the bottom plate 10 through the two sets of bases 20 using the installation method described in Example 1, so that the horizontal plate 21 is parallel to the current installation side of the bottom plate 10, and the contact surfaces of the upper ends of the two sets of support arms 22 with the side walls 11 are directly above the plurality of positioning holes 100 on the installation side;

[0060] S2. Adjust the hoisting mechanism 12 so that the side wall 11 rests on the two sets of support arms 22, and the height difference between the bottom end of the side wall 11 and the surface of the bottom plate 10 is between 10 cm and 20 cm. Figure 5 The lifting point of the lifting mechanism 12 is located at the upper right side of the two sets of support arms 22. The lifting mechanism 12 and the two sets of support arms 22 form a three-point support structure for the side wall 11. At the same time, the angle between the side wall 11 and the bottom plate 10 is not greater than 90°.

[0061] An anchor bolt 101 is inserted into the positioning hole 100 on the current installation position of the base plate 10 , and a prefabricated hole opposite to the positioning hole 100 is provided at the bottom end of the side wall 11 .

[0062] S3. Use the telescopic device 25 to drive the pull belt 24 to pull the lower end of the side wall 11 toward the right side of the base plate 10, so that the side wall 11 is adjusted to a vertical state, and the orthographic projection of the side wall 11 in the base plate 10 coincides with the installation position;

[0063] S4. Lower the side wall 11 to the installation position of the bottom plate 10, insert the anchor bolt 101 into the prefabricated hole, and then perform grouting and reinforcement support. After the reinforcement support is completed and the grouting material strength meets the standard, remove the positioning mechanism.

[0064] In addition, in this embodiment, step S3 further includes the following sub-steps:

[0065] S3.0. Use the telescopic device 25 to drive the pull belt 24 to pull the lower end of the side wall 11 into the bottom plate 10 to keep the side wall 11 vertical;

[0066] S3.1. Sometimes, due to certain installation and use errors in the inclination of the upper ends of the two sets of support arms 250, the above errors will be magnified at the corners of the bottom end of the side wall 11, that is, the deviation between the anchor bolt 101 in the installation position and the prefabricated hole at the bottom of the side wall 11 will gradually increase from the middle of the installation position to the outside of the installation position. At this time, it is necessary to fine-tune the bottom corners of the side wall 11.

[0067] S3.2. When it is determined that the orthographic projection of the side wall 11 in the base plate 10 coincides with the installation position, proceed directly to step S4;

[0068] When the orthographic projection of a corner of the lower end of the side wall 11 in the base plate 10 does not coincide with the installation position, adjust the adjusting screw 230 in the tube 23 on the same side to move the corner of the side wall 11 on the same side toward the inside of the base plate 10 until they coincide.

[0069] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A concrete slab hoisting and positioning mechanism, used for hoisting and positioning a side wall (11) hoisted by a hoisting mechanism (12) to a mounting position on a base plate (10), characterized in that: include: A transverse plate (21) supported on the bottom plate (10) by two sets of bases (20); Two groups of support arms (22) are relatively arranged at the two ends of the transverse plate (21), and the upper ends of the two groups of support arms (22) are inclined toward the outside of the base plate (10). The side wall (11) is supported above the base plate (10) by the hoisting mechanism (12) and the two groups of support arms (22), and the angle between the side wall (11) and the base plate (10) is not greater than 90°. A telescopic device (25) is arranged in the middle of the transverse plate (21), wherein the telescopic device (25) has a group of telescopic arms (250) facing the side wall (11), and the telescopic arms (250) are connected to a group of drawstrings (24) sleeved on the lower outer wall of the side wall (11).

2. The concrete slab hoisting and positioning mechanism according to claim 1, characterized in that: The upper end of each group of support arms (22) is provided with at least one group of rotating wheels (220) that are in rolling contact with the surface of the side wall (11).

3. The concrete slab hoisting and positioning mechanism according to claim 1, characterized in that: Each group of the bases (20) is further provided with a group of sleeves (23) facing the same direction as the telescopic arms (250), and each group of the sleeves (23) is internally threadedly connected to a group of adjusting screws (230) that can be rotated forward / backward, and a connecting ring (231) is further provided on the end of the adjusting screw (230) facing the side wall (11), and the pull belt (24) is passed through the two groups of connecting rings (231).

4. The concrete slab hoisting and positioning mechanism according to claim 3, characterized in that: Two groups of positioning piles (200) are provided in the base (20), and the distance between the two groups of positioning piles (200) is equal to the distance between any two adjacent groups of positioning holes (100) on the bottom plate (10); A group of positioning pins (201) is inserted into each group of positioning piles (200), and the lower ends of the positioning pins (201) are inserted into the positioning holes (100).

5. The concrete slab hoisting and positioning mechanism according to claim 4, characterized in that: In each group of the bases (20), the connecting line between the two groups of the positioning piles (200) is perpendicular to the length extension direction of the transverse plate (21).

6. The concrete slab hoisting and positioning mechanism according to claim 1, 2 or 3, characterized in that: The end of the telescopic arm (250) is also provided with a group of connectors (251), and both ends of the pull belt (24) are respectively provided with a group of insertion rods (240), and both groups of the insertion rods (240) can be vertically inserted into the connector (251) in a pluggable manner.

7. The concrete slab hoisting and positioning mechanism according to claim 1 or 2, characterized in that: A plurality of fixing positions (210) are evenly spaced on the transverse plate (21), and the lower end of each group of the support arms (22) is detachably mounted in the fixing positions (210) via bolts (221).

8. The concrete slab hoisting and positioning mechanism according to claim 3, characterized in that: The adjusting screw (230) has a first end and a second end opposite to each other, wherein the first end of the adjusting screw (230) is provided with the connecting ring (231), and the second end is provided with a group of force application holes (232), and the force application holes (232) are used to pass through a force rod for screwing the adjusting screw (230).

9. The positioning method of a concrete slab hoisting and positioning mechanism according to any one of claims 3 to 8, wherein the side of the bottom plate (10) on which the side wall (11) is installed is defined as the installation side of the bottom plate (10), characterized in that: The positioning method comprises the following steps: S1. Install the horizontal plate (21) on the bottom plate (10) through the two sets of bases (20), so that the horizontal plate (21) is parallel to the installation side of the bottom plate (10), and the contact surfaces of the upper ends of the two sets of support arms (22) and the side walls (11) are located directly above the plurality of positioning holes (100) on the installation side; S2. Adjust the hoisting mechanism (12) so that the side wall (11) rests on the two sets of support arms (22), and the angle between the side wall (11) and the bottom plate (10) is no greater than 90°; S3, driving the pull belt (24) through the telescopic device (25) to pull the lower end of the side wall (11) into the bottom plate (10), so that the side wall (11) is adjusted to a vertical state, and the orthographic projection of the side wall (11) in the bottom plate (10) coincides with the installation position; S4, lowering the side wall (11) to the installation position of the base plate (10).

10. The positioning method of the concrete slab hoisting and positioning mechanism according to claim 9, characterized in that: The step S3 includes the following sub-steps: S3.0, driving the pull belt (24) through the telescopic device (25) to pull the lower end of the side wall (11) into the bottom plate (10), so that the side wall (11) remains vertical; S3.

1. Determine whether the orthographic projection of the side wall (11) in the base plate (10) coincides with the installation position; S3.2: If yes, proceed to step S4; if not, adjust the adjusting screw (230) in the sleeve (23) on at least one side to move the corner of the side wall (11) on the same side toward the inside of the bottom plate (10), and repeat step S3.1.

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