A Precision Lifting Device for Prefabricated Beams

Abstract

The present invention relates to the field of hoisting construction technology, and discloses a prefabricated beam precision hoisting device, comprising a base, a suspension assisting assembly, a suspension frame assembly, and a resistance arm adjustment assembly, wherein a prefabricated beam body is suspended above the base, and the suspension assisting assembly, the suspension frame assembly, and the resistance arm adjustment assembly are all arranged on the prefabricated beam body. The present invention specifically provides a prefabricated beam precision hoisting device capable of adjusting the position of the suspension fulcrum of the prefabricated beam body according to the wind speed difference at different heights.

Description

Technical Field

[0001] The invention relates to the technical field of hoisting construction, in particular to a precise hoisting device for prefabricated beams. Background Art

[0002] An invention patent with application number 202110356659.0 discloses an adaptive adjustment device and method for hoisting wind load resistance, and specifically discloses the technical solution of "real-time monitoring of the inclination angle signal of the hoisting component fed back by the level meter, and operating the water pump through the controller to distribute the water storage in the water tank and adjust the center of gravity position of the balance beam so that the hoisting component reaches the expected inclination angle".

[0003] Although the technical solution of the application can adjust the center of gravity of the balance beam according to the feedback of the level meter, so as to meet the installation inclination angle requirements of the hoisting components under the working condition of wind load, the technical solution of the application does not have the effect of adjusting the suspension fulcrum position according to the wind speed difference at different heights to suppress the swing of the workpiece under the working condition of wind load, and the construction safety has a certain room for improvement. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a prefabricated beam precision lifting device. In order to solve the problem that the prior art lacks the ability to adjust the suspension fulcrum position according to the wind speed difference at different heights to suppress the swing of the workpiece, the present invention proposes a prefabricated beam precision lifting device that can adjust the suspension fulcrum position of the prefabricated beam body according to the wind speed difference at different heights.

[0005] The technical solution adopted by the present invention is as follows: a prefabricated beam precision lifting device, including a base, a suspension assisting assembly, a suspension frame assembly and a resistance arm adjustment assembly, a prefabricated beam body is suspended above the base, and the suspension assisting assembly, the suspension frame assembly and the resistance arm adjustment assembly are all arranged on the prefabricated beam body.

[0006] Furthermore, the suspension assisting components are provided with four groups, two groups of the suspension assisting components are arranged above the prefabricated beam body and are symmetrically arranged front to back, and the other two groups of the suspension assisting components are arranged below the prefabricated beam body and are symmetrically arranged front to back. The suspension assisting components include a head attachment block and a tail attachment block, and the head attachment block and the tail attachment block are both fitted on the prefabricated beam body, and the two head attachment blocks and the two tail attachment blocks fitted below the prefabricated beam body are both fitted on the base.

[0007] Furthermore, the suspension frame assembly includes a side connecting frame, a slider, a U-shaped suspension frame, a windward adjustment electric push rod and a plurality of anemometers. The side connecting frame is located on a prefabricated beam body. The side connecting frame includes a connecting beam and four positioning blocks. The four positioning blocks are respectively detachably arranged on a head attachment block and a tail attachment block. The connecting beam is fixedly arranged between the four positioning blocks. The slider is slidably arranged on the connecting beam. The U-shaped suspension beam is fixedly arranged on the slider. The windward adjustment electric push rod is fixedly arranged between the U-shaped suspension beam and the side connecting frame. A plurality of anemometers are fixedly arranged in a linear array on the connecting beam. The side connecting frame, the slider and the windward adjustment electric push rod are all symmetrically arranged front and back relative to the prefabricated beam body. The plurality of anemometers are symmetrically arranged front and back relative to the prefabricated beam body.

[0008] Furthermore, the resistance arm adjustment assembly includes a center beam, a resistance arm adjustment electric push rod, an extrusion plate and an attachment bag filled with a counterweight fluid. The center beam, the resistance arm adjustment electric push rod and the extrusion plate are each provided with two. The attachment bag filled with the counterweight fluid is fitted and arranged on one side of the prefabricated beam body. The two extrusion plates are fit-connected to the attachment bag filled with the counterweight fluid. The two resistance arm adjustment electric push rods are respectively fixedly connected to the two extrusion plates. The two center beams are respectively fixedly connected to the two resistance arm adjustment electric push rods. One center beam is fixedly connected to the head attachment block, and the other center beam is fixedly connected to the tail attachment block.

[0009] Furthermore, the resistance arm adjustment assembly is provided with two groups symmetrically above and below the prefabricated beam body.

[0010] Furthermore, a negative pressure pump is fixedly provided in the head attachment block and the tail attachment block, and the output end of the negative pressure pump is abutted against the prefabricated beam body.

[0011] Furthermore, the suspension assist component also includes a landing electric push rod, a landing support rod, a damping shock absorber and a support foot, the landing electric push rod is fixedly connected to the head attachment block, the landing support rod is fixedly connected to the landing electric push rod, the landing support rod is slidably penetrated in the tail attachment block, the damping shock absorber is fixedly connected to the landing support rod, and the support foot is fixedly connected to the damping shock absorber.

[0012] Furthermore, a lifting motor is fixed on the base, a lifting seat is fixed on the output end of the lifting motor, a locking electric push rod is fixed in the lifting seat, a locking block is fixed at one end of the locking electric push rod, and the locking block is fitted on the prefabricated beam.

[0013] The beneficial effects achieved by the present invention using the above structure are as follows:

[0014] 1. The effect of the suspension frame assembly is that the natural wind is used as the power source to cause the prefabricated beam to swing, and the height difference between the natural wind action point and the slider is used as the power arm to cause the prefabricated beam to swing. By adjusting the blowing point of the strongest part of the natural wind to the slider, the swing power arm can be shortened to suppress the swing of the prefabricated beam, and the safety can be enhanced during the suspension of the prefabricated beam.

[0015] 2. When the natural wind mainly acts on the upper part of the precast beam, the upper part on the windward side is heavier, while the lower part on the leeward side is heavier, which causes the precast beam to have a certain tendency to tip over and swing, and balances the blowing force of the natural wind on the upper part of the precast beam, thereby suppressing the swing of the precast beam and further enhancing safety during the suspension process of the precast beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of a prefabricated beam precision lifting device of the present invention.

[0017] Figure 2 It is a top view schematic diagram of a prefabricated beam precision lifting device of the present invention.

[0018] Figure 3 It is a three-dimensional schematic diagram of the lifting motor, lifting seat, locking electric push rod and locking block of the present invention.

[0019] Figure 4 It is a three-dimensional schematic diagram of the suspension assist component of the present invention.

[0020] Figure 5 It is a three-dimensional schematic diagram of the suspension frame assembly of the present invention.

[0021] Figure 6 It is a three-dimensional schematic diagram of the side connection frame of the present invention.

[0022] Figure 7 It is a three-dimensional schematic diagram of the resistance arm adjustment assembly of the present invention.

[0023] Among them, 1. base, 2. lifting motor, 3. lifting seat, 4. locking electric push rod, 5. locking block, 6. prefabricated beam, 7. suspension assist assembly, 701. head attachment block, 702. tail attachment block, 703. negative pressure pump, 704. landing electric push rod, 705. landing support rod, 706. damping shock absorber, 707. support foot, 8. suspension frame assembly, 801. side connecting frame, 8011. positioning block, 8012. connecting beam, 802. slider, 803. U-shaped suspension frame, 804. windward adjustment electric push rod, 805. anemometer, 9. resistance arm adjustment assembly, 901. center beam, 902. resistance arm adjustment electric push rod, 903. extrusion plate, 904. attachment bag filled with counterweight fluid.

[0024] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0026] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] like Figure 1 to Figure 7 As shown, a prefabricated beam precision lifting device includes a base 1, a suspension assisting assembly 7, a suspension frame assembly 8 and a resistance arm adjusting assembly 9, a prefabricated beam body 6 is suspended above the base 1, and the suspension assisting assembly 7, the suspension frame assembly 8 and the resistance arm adjusting assembly 9 are all arranged on the prefabricated beam body 6.

[0028] like Figure 1 to Figure 7 As shown, the suspension assisting components 7 are provided with four groups, two groups of the suspension assisting components 7 are arranged above the prefabricated beam body 6 and are symmetrically arranged front to back, and the other two groups of the suspension assisting components 7 are arranged below the prefabricated beam body 6 and are symmetrically arranged front to back, and the suspension assisting components 7 include a head attachment block 701 and a tail attachment block 702, and the head attachment block 701 and the tail attachment block 702 are both fitted on the prefabricated beam body 6, and the two head attachment blocks 701 and the two tail attachment blocks 702 fitted below the prefabricated beam body 6 are both fitted on the base 1.

[0029] like Figure 1 to Figure 7As shown, the suspension frame assembly 8 includes a side connection frame 801, a slider 802, a U-shaped suspension frame 803, a windward adjustment electric push rod 804 and a plurality of anemometers 805. The side connection frame 801 is located on the prefabricated beam body 6. The side connection frame 801 includes a connection beam 8012 and four positioning blocks 8011. The four positioning blocks 8011 are respectively detachably arranged on the head attachment block 701 and the tail attachment block 702. The connection beam 8012 is fixedly arranged between the four positioning blocks 8011. The slider 802 is slidably arranged on the connecting beam 8012, the U-shaped suspension beam is fixedly arranged on the slider 802, the windward adjustment electric push rod 804 is fixedly arranged between the U-shaped suspension beam and the side connecting frame 801, and a plurality of anemometers 805 are fixedly arranged in a linear array on the connecting beam 8012. The side connecting frame 801, the slider 802, and the windward adjustment electric push rod 804 are all symmetrically arranged with two relative to the front and rear of the prefabricated beam body 6, and the plurality of anemometers 805 are symmetrically arranged relative to the front and rear of the prefabricated beam body 6.

[0030] like Figure 1 to Figure 7 As shown, the resistance arm adjustment assembly 9 includes a center beam 901, a resistance arm adjustment electric push rod 902, an extrusion plate 903 and an attachment bag 904 filled with a counterweight fluid. The center beam 901, the resistance arm adjustment electric push rod 902 and the extrusion plate 903 are each provided with two. The attachment bag 904 filled with a counterweight fluid is fitted and arranged on one side of the prefabricated beam body 6. The two extrusion plates 903 are both fitted and connected to the attachment bag 904 filled with a counterweight fluid. The two resistance arm adjustment electric push rods 902 are respectively fixedly connected to the two extrusion plates 903. The two center beams 901 are respectively fixedly connected to the two resistance arm adjustment electric push rods 902. One center beam 901 is fixedly connected to the head attachment block 701, and the other center beam 901 is fixedly connected to the tail attachment block 702.

[0031] like Figure 1 to Figure 7 As shown, the resistance arm adjustment assembly 9 is provided with two groups symmetrically above and below the prefabricated beam body 6.

[0032] like Figure 1 to Figure 7 As shown, a negative pressure pump 703 is fixedly disposed in each of the head attachment block 701 and the tail attachment block 702 , and an output end of the negative pressure pump 703 is abutted against the prefabricated beam body 6 .

[0033] like Figure 1 to Figure 7As shown, the suspension assist component 7 also includes a landing electric push rod 704, a landing support rod 705, a damping shock absorber 706 and a support leg 707. The landing electric push rod 704 is fixedly connected to the head attachment block 701, the landing support rod 705 is fixedly connected to the landing electric push rod 704, the landing support rod 705 is slidably penetrated in the tail attachment block 702, the damping shock absorber 706 is fixedly connected to the landing support rod 705, and the support leg 707 is fixedly connected to the damping shock absorber 706.

[0034] like Figure 1 to Figure 7 As shown, the base 1 is fixed with a lifting motor 2, the output end of the lifting motor 2 is fixed with a lifting seat 3, a locking electric push rod 4 is fixed inside the lifting seat 3, a locking block 5 is fixed at one end of the locking electric push rod 4, and the locking block 5 is fitted on the prefabricated beam 6.

[0035] When in use, the head attachment block 701 and the tail attachment block 702 are arranged on the upper and lower sides of the horizontally placed prefabricated beam body 6 (the head attachment block 701 and the tail attachment block 702 are adsorbed on the prefabricated beam body 6 by the negative pressure generated by the negative pressure pump 703), and the head attachment block 701 and the tail attachment block 702 below the prefabricated beam body 6 are placed on the base 1. The locking electric push rod 4 extends, driving the locking block 5 to press the prefabricated beam body 6. Then the lifting motor 2 rotates, driving the lifting seat 3 and the prefabricated beam body 6 to rise and gradually become vertical.

[0036] After the prefabricated beam body 6 is placed vertically, the crane lifts the U-shaped suspension frame 803, and at the same time the locking electric push rod 4 contracts, so that the locking block 5, the lifting seat 3 and the base 1 are separated from the connection relationship with the prefabricated beam body 6.

[0037] During the process of the crane driving the prefabricated beam 6 to rise, the prefabricated beam 6 raised to a high altitude is affected by the natural wind and has a certain tendency to shake. The multiple anemometers 805 in a linear array on the side connection frame 801 can evaluate the wind speed at different heights during the process of rising in height, and control the windward adjustment electric push rod 804 to perform telescopic movement through electrical signal transmission, so as to drive the slider 802 connected between the U-shaped suspension frame and the side connection frame 801 to move toward the horizontal height with high wind speed. Therefore, when the natural wind blows against the prefabricated beam 6, the natural wind blows against the slider 802 at the part with the largest wind force in any horizontal cross section.

[0038] Because the prefabricated beam body 6 is tightly connected to the head attachment block 701 and the tail attachment block 702 through the negative pressure pump 703, and the side connection frame 801 is assembled on the head attachment block 701 and the tail attachment block 702, the suspension support force provided by the crane and the U-shaped suspension frame 803 to the prefabricated beam body 6 and the side connection frame 801 is all transmitted through the slider 802, that is, the slider 802 can be regarded as the fulcrum for the suspension and elevation of the prefabricated beam body 6. Therefore, by adjusting the telescopic adjustment of the electric push rod 804 against the wind, the slider 802 is subjected to the strongest part of the wind in the natural wind, so that the swinging tendency of the prefabricated beam body 6 under the action of the natural wind can be suppressed. Specifically, the natural wind serves as the power source to cause the prefabricated beam body 6 to swing, and the height difference between the natural wind action point and the slider 802 serves as the power arm to cause the prefabricated beam body 6 to swing. By adjusting the blowing point of the strongest part of the natural wind to the slider 802, the swing power arm can be shortened to suppress the swing of the prefabricated beam 6, and the safety can be enhanced during the suspension process of the prefabricated beam 6.

[0039] The working principle of the resistance arm adjustment component 9 is as follows: the resistance arm adjustment electric push rod 902 is connected to the anemometer 805 signal. In the process of the prefabricated beam body 6 being vertically suspended, there is a certain difference between the natural wind speed measured by the upper anemometer 805 and the lower anemometer 805. Based on the difference in natural wind speed at different heights, one of the upper and lower resistance arm adjustment electric push rods 902 is in an extended state, while the other is in a contracted state, and the resistance arm is adjusted to suppress the swing of the prefabricated beam body 6. For example, when the upper anemometer 805 measures a high wind speed, on the windward side, the upper resistance arm adjustment electric push rod 902 contracts, and the lower resistance arm adjustment electric push rod 902 extends, thereby squeezing the attachment bag 904 filled with the counterweight fluid through the squeezing plate 903, causing the attachment bag 904 filled with the counterweight fluid to be in a state where the upper part is filled and the lower part is deflated. On the leeward side, the upper resistance arm regulating electric push rod 902 is extended, and the lower resistance arm regulating electric push rod 902 is contracted, thereby squeezing the attachment bag 904 filled with the counterweight fluid through the squeezing plate 903, causing the attachment bag 904 filled with the counterweight fluid to be in a state of being shrunk at the upper part and filled at the lower part. When the natural wind mainly acts on the upper part of the prefabricated beam body 6, the upper part of the windward side is heavier, while the lower part of the leeward side is heavier, so that the prefabricated beam body 6 has a certain tendency to tilt and swing, and the tilt and swing tendency caused by the natural wind on the prefabricated beam body 6 is balanced, which has the effect of suppressing the swing of the prefabricated beam body 6, and further enhances the safety during the suspension process of the prefabricated beam body 6.

[0040] After the prefabricated beam 6 is suspended above the designated building / scaffolding, the crane controls the U-shaped suspension frame 803 and the prefabricated beam 6 to fall. The electric push rod 704 is extended, so that the landing support rod 705, the damping shock absorber 706 and the support leg 707 fall first compared with the prefabricated beam 6. The damping shock absorber 706 and the support leg 707 can buffer the impact of the fall, so that the subsequent prefabricated beam 6 can fall more smoothly and safely.

[0041] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A prefabricated beam precision lifting device, characterized in that: It comprises a base (1), a suspension assisting assembly (7), a suspension frame assembly (8) and a resistance arm adjusting assembly (9), wherein a prefabricated beam body (6) is suspended above the base (1), and the suspension assisting assembly (7), the suspension frame assembly (8) and the resistance arm adjusting assembly (9) are all arranged on the prefabricated beam body (6); The suspension assisting components (7) are provided in four groups, two groups of the suspension assisting components (7) are arranged above the prefabricated beam body (6) and are symmetrically arranged front to back, and the other two groups of the suspension assisting components (7) are arranged below the prefabricated beam body (6) and are symmetrically arranged front to back, the suspension assisting components (7) include a head attachment block (701) and a tail attachment block (702), the head attachment block (701) and the tail attachment block (702) are both fitted on the prefabricated beam body (6), and the two head attachment blocks (701) and the two tail attachment blocks (702) fitted below the prefabricated beam body (6) are both fitted on the base (1); The suspension frame assembly (8) comprises a side connection frame (801), a slider (802), a U-shaped suspension frame (803), a windward adjustment electric push rod (804) and a plurality of anemometers (805); the side connection frame (801) is located on the prefabricated beam body (6); the side connection frame (801) comprises a connection beam (8012) and four positioning blocks (8011); the four positioning blocks (8011) are respectively detachably arranged on the head attachment block (701) and the tail attachment block (702); the connection beam (8012) is fixedly arranged on the four positioning blocks (8011) The slider (802) is slidably arranged on the connecting beam (8012), the U-shaped suspension beam is fixedly arranged on the slider (802), the windward adjustment electric push rod (804) is fixedly arranged between the U-shaped suspension beam and the side connecting frame (801), and a plurality of anemometers (805) are fixedly arranged in a linear array on the connecting beam (8012), the side connecting frame (801), the slider (802), and the windward adjustment electric push rod (804) are all symmetrically arranged in front and back relative to the prefabricated beam body (6), and the plurality of anemometers (805) are symmetrically arranged in front and back relative to the prefabricated beam body (6); The resistance arm adjustment component (9) comprises a central beam (901), a resistance arm adjustment electric push rod (902), an extrusion plate (903) and an attachment bag (904) filled with a counterweight fluid. The central beam (901), the resistance arm adjustment electric push rod (902) and the extrusion plate (903) are each provided with two. The attachment bag (904) filled with a counterweight fluid is fitted and arranged on one side of the prefabricated beam body (6). The two extrusion plates (903) are both fitted and connected to the attachment bag (904) filled with a counterweight fluid. The two resistance arm adjustment electric push rods (902) are respectively fixedly connected to the two extrusion plates (903). The two central beams (901) are respectively fixedly connected to the two resistance arm adjustment electric push rods (902). One central beam (901) is fixedly connected to the head attachment block (701), and the other central beam (901) is fixedly connected to the tail attachment block (702).

2. The device for accurately lifting prefabricated beams according to claim 1 is characterized in that: The resistance arm adjustment components (9) are provided in two groups symmetrically above and below the prefabricated beam body (6).

3. The device for accurately lifting prefabricated beams according to claim 2 is characterized in that: A negative pressure pump (703) is fixedly disposed in both the head attachment block (701) and the tail attachment block (702), and an output end of the negative pressure pump (703) is abutted against the prefabricated beam body (6).

4. The device for accurately lifting prefabricated beams according to claim 3 is characterized in that: The suspension assisting assembly (7) further comprises a descending electric push rod (704), a descending support rod (705), a damping shock absorber (706) and a support foot (707); the descending electric push rod (704) is fixedly connected to the head attachment block (701); the descending support rod (705) is fixedly connected to the descending electric push rod (704); the descending support rod (705) is slidably penetrated in the tail attachment block (702); the damping shock absorber (706) is fixedly connected to the descending support rod (705); and the support foot (707) is fixedly connected to the damping shock absorber (706).

5. The device for accurately lifting prefabricated beams according to claim 4 is characterized in that: The base (1) is fixedly mounted on a lifting motor (2), a lifting seat (3) is fixedly mounted on the output end of the lifting motor (2), a locking electric push rod (4) is fixedly mounted inside the lifting seat (3), a locking block (5) is fixedly mounted on one end of the locking electric push rod (4), and the locking block (5) is fitted onto the prefabricated beam body (6).

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