Precast concrete component lifting structure

Abstract

The present invention relates to the technical field of engineering hoisting, and in particular to a precast concrete component hoisting structure, comprising a base plate, wherein the lower end surface of the base plate is connected with a clamping mechanism for clamping the concrete component, the lower end surface of the base plate is connected with a triggering mechanism, constituting a structure in which the clamping mechanism is deployed and the concrete component is clamped and fixed by triggering the triggering mechanism, the upper end of the base plate is connected with a middle plate through a left and right moving component, constituting a structure in which the middle plate and the base plate can be relatively moved left and right through the left and right moving mechanism, the middle plate is connected with an upper plate through a front and back moving mechanism, constituting a structure in which the middle plate and the upper plate can be relatively moved front and back through the front and back moving mechanism, the upper end of the upper plate is connected with a plurality of connecting rings, the connecting rings are connected with steel wire ropes, the clamping mechanism, the triggering mechanism, the left and right moving mechanism and the front and back moving mechanism are electrically connected with a control module assembly, and the present invention has broad application prospects in the technical field of engineering hoisting.

Description

Technical Field

[0001] The invention relates to the technical field of engineering hoisting, in particular to a prefabricated concrete component hoisting structure. Background Art

[0002] During the construction of engineering projects, in order to speed up the construction progress, whether it is a water conservancy project, a bridge project, a municipal project, or a construction project, precast concrete components that have been cast in advance are usually used, such as precast concrete slabs, precast concrete pipes, precast concrete beams, etc. The precast concrete components are heavy and large in size after solidification, and a crane is often required to lift the precast concrete components to the required installation position. However, the existing crane lifting device has a simple structure and requires manual auxiliary hooks during the lifting process. It is cumbersome to connect the precast concrete components with the lifting device of the crane hook, and the workers are within the operating range of the crane, which also poses a safety risk. In addition, after the precast concrete components are lifted to the installation position, it is difficult for the lifting mechanism to drive the precast concrete components to move a small distance, making it difficult for the precast concrete components to reach a suitable predetermined position, affecting the construction progress. Therefore, a lifting structure that solves the above problems is needed. Summary of the invention

[0003] In order to solve the problem that the existing crane lifting device has a simple structure and requires manual auxiliary hooks during the lifting process, connecting the precast concrete component with the lifting device of the crane hook is relatively cumbersome, and the workers are in the operating range of the crane, which also poses a safety risk. In addition, after the precast concrete component is hoisted to the installation position, it is difficult for the lifting mechanism to drive the precast concrete component to move a small distance, making it difficult for the precast concrete component to reach a suitable predetermined position, affecting the construction progress, a precast concrete component lifting structure is invented.

[0004] The technical solution of the present invention is to include a base plate, wherein the lower end surface of the base plate is connected with a clamping mechanism for clamping a concrete member, the lower end surface of the base plate is connected with a triggering mechanism, constituting a structure in which the clamping mechanism is deployed and the concrete member is clamped and fixed by triggering the triggering mechanism, the upper end of the base plate is connected with a middle plate through a left and right moving assembly, constituting a structure in which the middle plate and the base plate are relatively moved left and right by the left and right moving mechanism, the middle plate is connected with an upper plate through a front and back moving mechanism, constituting a structure in which the middle plate and the upper plate are relatively moved front and back by the front and back moving mechanism, the upper end of the upper plate is connected with a plurality of connecting rings, the connecting rings are connected with steel wire ropes, the clamping mechanism, the triggering mechanism, the left and right moving mechanism and the front and back moving mechanism are electrically connected with a control module assembly, constituting a structure in which the movement of the clamping mechanism, the triggering mechanism, the left and right moving mechanism and the front and back moving mechanism are controlled by the control module assembly.

[0005] Preferably, the trigger mechanism includes a trigger ball, a trigger plate, a first spring and a second spring. A placement hole is opened on the lower end surface of the base plate. The trigger plate is connected to the placement hole through the first spring. The trigger ball is connected to the placement hole through the second spring, and the trigger ball partially protrudes from the placement hole. The diameter of the second spring is larger than the diameter of the first spring. A limiting plate is connected to the base plate at the placement hole, and the trigger ball partially passes through the limiting plate.

[0006] Preferably, the clamping mechanism includes a clamping slider, a clamping cylinder, a first connecting rod, a positioning rod and a clamping head, the lower end surface of the base plate is provided with a plurality of clamping grooves with trapezoidal vertical cross-sections, the clamping slider is slidably connected in the clamping groove, the clamping cylinder is connected to one end in the clamping groove, a clamping piston is slidably connected in the clamping cylinder, the two ends of the first connecting rod are respectively connected to the clamping piston and the clamping slider, the outer end surface of the clamping piston is provided with a plurality of first clamping grooves, the first clamping groove is clamped and connected with a first sealing ring, the first connecting rod passes through the second sealing ring, the two ends of the clamping cylinder are connected with a first air inlet hole and a second air inlet hole, the positioning rod is connected to one end of the clamping slider away from the clamping cylinder, and the clamping head is rotatably connected to the positioning rod and the end away from the clamping slider by a rotating motor.

[0007] Preferably, the side end surface of the clamping slide groove is provided with a plurality of rolling grooves, balls are arranged in the rolling grooves, and the ball parts extend out of the rolling grooves, and the side end surface of the clamping slider is provided with a clamping guide groove, and the ball is slidably connected in the clamping guide groove.

[0008] Preferably, the positioning rod is L-shaped, and a rotation groove is provided at one end of the positioning rod away from the clamping slider, one end of the clamping head is arranged in the rotation groove, the rotating motor is connected to the positioning rod above the rotation groove, the output shaft of the rotating motor passes through the positioning rod and is connected to the clamping head in the rotation groove, and a protective cover is connected to the outside of the rotating motor.

[0009] Preferably, the two end surfaces of the middle plate close to the bottom plate and the upper plate are respectively provided with left and right sliding grooves and front and rear sliding grooves arranged in vertical directions, the bottom plate is provided with a lower sliding groove corresponding to the left and right sliding grooves, the left and right moving mechanism is arranged in the left and right sliding grooves and the lower sliding groove, the upper plate is provided with an upper sliding groove corresponding to the front and rear sliding grooves, and the front and rear moving mechanism is arranged in the front and rear sliding grooves and the upper sliding grooves.

[0010] Preferably, the left-right moving mechanism or the front-back moving mechanism includes a second connecting rod and a moving cylinder arranged in pairs, the two moving cylinders of the left-right moving mechanism are respectively connected to the left-right sliding grooves and the lower sliding groove, the two moving cylinders of the front-back moving mechanism are respectively connected to the front-back sliding grooves and the upper sliding groove, a moving piston is slidably connected in the moving cylinder, the two ends of the second connecting rod are connected to the moving pistons in the two moving cylinders, a plurality of third clamping grooves are provided on the outer end surface of the moving piston, a third sealing ring is clamped in the third clamping groove, a plurality of fourth clamping grooves are provided on the mobile cylinder where the second connecting rod passes through the mobile cylinder, a fourth sealing ring is clamped in the fourth clamping groove, the second connecting rod passes through the fourth sealing ring, and the two ends of the mobile cylinder are respectively connected to the third air inlet hole and the fourth air inlet hole.

[0011] Preferably, a plurality of first movable guide strips extend from the side walls of the left and right sliding grooves and the front and rear sliding grooves, a plurality of second movable guide strips extend from the side walls of the upper sliding groove and the lower sliding groove, a plurality of movable guide strips are opened on the side walls of the movable cylinder, and a plurality of the first movable guide strips and the second movable guide strips are slidably connected in the movable guide strips.

[0012] Preferably, the middle plate is provided with a plurality of first connecting grooves and second connecting grooves parallel to the left and right sliding grooves and the front and rear sliding grooves, the bottom plate and the upper plate are provided with a third connecting groove and a fourth connecting groove respectively corresponding to the first connecting groove and the second connecting groove, the first connecting groove and the third connecting groove are connected to the lower connecting slide block, the second connecting groove and the fourth connecting groove are connected to the upper connecting slide block, the inner walls of the first connecting groove and the second connecting groove are respectively extended with a plurality of first connecting guide strips and a second connecting guide strip, the inner walls of the third connecting groove and the fourth connecting groove are respectively extended with a plurality of third connecting guide strips and a fourth connecting guide strip, the side walls of the upper connecting slide block and the lower connecting slide block are respectively provided with a plurality of first connecting guide grooves and a second connecting guide groove, the first connecting guide strip and the third connecting guide strip are slidably connected in the first connecting guide groove, and the second connecting guide strip and the fourth connecting guide strip are slidably connected in the second connecting guide groove.

[0013] Preferably, an air pump is connected to the upper plate, and the air pump is connected to a solenoid valve group through an air pipe. The clamping mechanism, the left and right moving mechanism and the front and back moving mechanism are connected to the solenoid valve group, and the air pump and the solenoid valve group are electrically connected to the control module assembly.

[0014] The following beneficial effects can be achieved by adopting the technical solution of the present invention: (1) through the trigger mechanism and the clamping mechanism, the entire lifting device is triggered after being placed on the precast concrete component, and then the clamping mechanism is controlled to clamp and fix the precast concrete component, thereby realizing automatic clamping, reducing manual participation, and thereby reducing safety risks; (2) through the left-right moving mechanism and the front-back moving mechanism, the front-back and left-right distances of the precast concrete component can be fine-tuned after being lifted, so that the precast concrete component can be accurately placed in the appropriate position, thereby improving the installation efficiency of the precast concrete component; (3) through the control module, the air pump, and the solenoid valve group, it is convenient to receive the trigger signal of the trigger mechanism, and then control the operation of the air pump and the solenoid valve group, thereby realizing the control of the clamping mechanism, the left-right moving mechanism, and the front-back moving mechanism; the technical solution of the present invention has broad application prospects in the field of engineering lifting technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view of the precast concrete component lifting structure of the present invention.

[0016] Figure 2 for Figure 1 A magnified image of area A.

[0017] Figure 3 It is a schematic diagram of the partial structure of the bottom plate and the clamping mechanism of the precast concrete component lifting structure of the present invention.

[0018] Figure 4 for Figure 3 Enlarged view of area B.

[0019] Figure 5 It is a partial structural schematic diagram of the middle plate and the front-rear moving mechanism of the precast concrete component lifting structure of the present invention.

[0020] Figure 6 for Figure 5 Enlarged view of area C.

[0021] Among them, 1. upper plate, 2. middle plate, 3. bottom plate, 4. clamping slide groove, 5. clamping slider, 6. rolling groove, 7. clamping guide groove, 8. ball bearing, 9. clamping cylinder, 10. clamping piston, 11. first clamping groove, 12. first sealing ring, 13. first connecting rod, 14. second clamping groove, 15. second sealing ring, 16. first air inlet hole, 17. second air inlet hole, 18. positioning rod, 19. rotating groove, 20. clamping head, 21. rotating motor, 22. protective cover, 23. placement hole, 24. first spring, 25. trigger plate, 26. second spring, 27. trigger ball, 28. limit plate, 29. left and right sliding grooves, 30. lower sliding groove, 31. moving cylinder , 32. Second connecting rod, 33. Mobile piston, 34. Third clamping groove, 35. Third sealing ring, 36. Fourth clamping groove, 37. Fourth sealing ring, 39. Third air inlet hole, 40. First movable guide bar, 41. Second movable guide bar, 42. Mobile guide groove, 43. Front and rear sliding grooves, 44. Upper sliding groove, 45. First connecting groove, 46. Lower connecting slider, 47. Second connecting groove, 48. Fourth connecting groove, 49. Upper connecting slider, 50. First connecting guide bar, 51. Second connecting guide bar, 52. Second connecting guide groove, 53. Air pump, 54. Air pipe, 55. Solenoid valve group, 56. Control module assembly, 57. Connecting ring, 58. Wire rope. DETAILED DESCRIPTION

[0022] The technical solutions of various embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention. In the description of the present invention, it should be noted that the orientation or position relationship indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is 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.

[0023] In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] like Figure 1-6The precast concrete component lifting structure shown includes a base plate 3, and a clamping mechanism for clamping concrete components is connected to the lower end surface of the base plate 3, so that the clamping mechanism can clamp and fix the precast concrete components. The clamping mechanism includes a clamping slider 5, a clamping cylinder 9, a first connecting rod 13, a positioning rod 18 and a clamping head 20. The lower end surface of the base plate 3 is provided with a plurality of clamping slots 4 with a trapezoidal vertical section. The clamping slider 5 has a trapezoidal vertical section and is slidably connected in the clamping slot 4, so that the clamping slider 5 can only slide in the clamping slot 4, and the clamping slider 5 is prevented from being separated from the lower end surface of the clamping slot 4 located on the base plate 3. The clamping cylinder 9 is detachably fixed to one end of the clamping slot 4 by bolts, so that the clamping cylinder 9 is connected to the base plate 3 in the clamping slot 4. A clamping piston 10 is slidably connected in the clamping cylinder 9, and the two ends of the first connecting rod 13 are respectively welded to the clamping piston 10 and the clamping slider 5 or detachably fixedly connected by bolts, so that the clamping piston 10 slides in the clamping cylinder 9, and the clamping slider 5 is driven to slide in the clamping slide groove 4 by the first connecting rod 13. A plurality of first clamping grooves 11 are provided on the outer end surface of the clamping piston 10, and a first sealing ring 12 is clamped and connected in the first clamping groove 11, so that the first sealing ring 12 is clamped and limited by the first clamping groove 11 to prevent the first sealing ring 12 from detaching from the outer end surface of the clamping piston 10, and then the first sealing ring 12 is used to block the gap between the clamping piston 10 and the clamping cylinder 9. One end of the clamping cylinder 9 close to the clamping slider 5 is detachably fixedly connected to the cylinder head through a bolt seal, and the first connecting rod 13 passes through the cylinder head, and a plurality of second clamping grooves 14 are opened on the cylinder head where the first connecting rod 13 passes through the cylinder head, and the second clamping grooves 14 are clamped and connected with a second sealing ring 15. The first connecting rod 13 passes through the second sealing ring 15, so that the second sealing ring 15 is clamped and limited by the second clamping grooves 14 to prevent the second sealing ring 15 from detaching from the cylinder head, and then the second sealing ring 15 is used to block the gap between the cylinder head and the first connecting rod 13, and then cooperate with the first sealing ring 12 to form two relatively independent sealed chambers inside the clamping cylinder 9 at both ends of the clamping piston 10. The first air inlet hole 16 and the second air inlet hole 17 are connected at both ends of the clamping cylinder 9, so that air can be ventilated into the clamping cylinder 9 through the first air inlet hole 16 and the second air inlet hole 17, respectively, so that the clamping piston 10 can slide in the clamping cylinder 9, and then the clamping slider 5 can be driven to slide in the clamping slot 4 through the first connecting rod 13. The clamping sliders 5 and the clamping cylinders 9 in adjacent clamping slots 4 are arranged in opposite directions, and the first air inlet holes 16 and the second air inlet holes 17 on the clamping sliders 5 on the same side of the bottom plate 3 are connected respectively, so that the staggered clamping sliders 5 can drive the positioning rods 18 and the clamping heads 20 to stably clamp and fix the precast concrete components, and at the same time, the clamping sliders 5 on the same side can drive the positioning rods 18 and the clamping heads 20 to move simultaneously.The first air inlet 16 and the second air inlet 17 are connected to the electromagnetic valve group 55, so that the electromagnetic valve group 55 can control the air supply to the first air inlet 16 and the second air inlet 17. During operation, when air is supplied to the first air inlet 16, the clamping piston 10 moves away from the first air inlet 16, thereby driving the positioning rods 18 and the clamping head 20 on both sides to move away from each other, thereby opening the clamping mechanism; when air is supplied to the second air inlet 17, the clamping piston 10 moves away from the second air inlet 17, thereby driving the positioning rods 18 and the clamping head 20 on both sides to move toward each other, thereby closing the clamping mechanism and clamping the precast concrete component.

[0025] like Figure 1-6 In the lifting structure of the precast concrete component shown, the positioning rod 18 is welded to the end of the clamping slide block 5 away from the clamping cylinder 9 or is detachably fixedly connected by bolts, so that the positioning rod 18 and the clamping slide block 5 are connected together to achieve simultaneous movement. The clamping head 20 is connected to the positioning rod 18 and the end away from the clamping slide block 5 by rotating the motor 21, so that the clamping head 20 is connected to the positioning rod 18 together, and the clamping head 20 is controlled to rotate by the rotating motor 21, so as to facilitate the folding and releasing of the clamping head 20 and facilitate the lifting of the precast concrete component. Specifically, the positioning rod 18 is L-shaped, and a rotation groove 19 is provided at one end of the positioning rod 18 away from the clamping slide block 5, and the rotation grooves 19 openings on the positioning rods 18 on both sides are arranged oppositely, and one end of the clamping head 20 is arranged in the rotation groove 19, and the rotating motor 21 is detachably fixedly connected to the positioning rod 18 above the rotation groove 19 by bolts, and the output shaft of the rotating motor 21 passes through the positioning rod 18 and is detachably fixedly connected to the clamping head 20 in the rotation groove 19 by bolts, so that when the rotating motor 21 is powered on and rotated, its output shaft drives the clamping head 20 to rotate 90°, and can penetrate into the bottom of the precast concrete component, thereby facilitating the lifting of the precast concrete component. The rotating motor 21 is a common electric motor capable of forward and reverse bidirectional rotation on the market, which is convenient for realizing the folding and releasing of the clamping head 20 through the forward and reverse rotation of the rotating motor 21, and avoiding clamping and detaching from the precast concrete component. A protective cover 22 is detachably fixedly connected to the outer side of the rotating motor 21 by bolts, so that the rotating motor 21 can be isolated and protected by the protective cover 22 to avoid damage to the rotating motor 21 when clamping the precast concrete component.

[0026] like Figure 1-6The precast concrete component lifting structure shown in the figure has a plurality of rolling grooves 6 on the side end face of the clamping slide 4, in which balls 8 are arranged, and part of the balls 8 extend out of the rolling groove 6, and a clamping guide groove 7 is provided on the side end face of the clamping slide 5, in which the balls 8 are slidably connected, so that the balls 8 are limited by the rolling grooves 6 to prevent the balls 8 from escaping from the rolling grooves 6, and then the clamping slide 5 is limited by the clamping guide grooves 7, so that the clamping slide 5 can only move along the length direction of the clamping slide 4, and at the same time, the balls 8 are used to reduce the direct friction between the clamping slide 5 and the clamping slide 4, so that the clamping piston 10 drives the clamping slide 5 to move in the clamping slide 4 through the first connecting rod 13, and then drives the positioning rod 18 and the clamping head 20 to move.

[0027] like Figure 1-6 In the precast concrete component lifting structure shown, the lower end surface of the base plate 3 is connected to a trigger mechanism, which constitutes a structure that realizes the expansion of the clamping mechanism and clamps and fixes the concrete component by triggering the trigger mechanism, so that when the entire base plate 3 is placed on the precast concrete component, the trigger mechanism is triggered by the self-gravity of the entire lifting structure, and then the clamping mechanism is controlled by the control module assembly 56 to clamp the precast concrete component. At the same time, the rotating motor 21 is controlled to be energized to drive the clamping head 20 to rotate to the bottom of the precast concrete component to lift the precast concrete component from the bottom. The trigger mechanism includes a trigger ball 27, a trigger plate 25, a first spring 24 and a second spring 26. A placement hole 23 is provided on the lower end surface of the bottom plate 3. The trigger plate 25 is connected to the placement hole 23 through the first spring 24. The trigger ball 27 is connected to the placement hole 23 through the second spring 26. The diameter of the second spring 26 is larger than the diameter of the first spring 24, so that the trigger plate 25 and the trigger ball 27 are both arranged in the placement hole 23. The first spring 24 and the second spring 26 with different diameters prevent the trigger ball 27 from contacting the trigger plate 25 to generate a trigger signal in advance without external force. The trigger ball 27 and the trigger plate 25 are conductive metals, and the trigger ball 27 and the trigger plate 25 are electrically connected to the signal light and the control module assembly 56, so that the trigger ball 27 and the trigger plate 25 form a circuit switch. When in contact, the circuit is energized, the signal light is on, and the trigger signal is transmitted to the control module assembly 56 for processing. The trigger ball 27 partially protrudes from the placement hole 23, and a limiting plate 28 is detachably connected to the bottom plate 3 at the placement hole 23 by bolts. The trigger ball 27 partially penetrates the limiting plate 28, so that the trigger ball 27 is limited by the limiting plate 28 to prevent the trigger ball 27 from escaping from the placement hole 23. At the same time, the trigger ball 27 partially protrudes from the placement hole 23, so that when the bottom plate 3 contacts the precast concrete component, the trigger ball 27 is first compressed back into the placement hole 23.

[0028] like Figure 1-6In the precast concrete component lifting structure shown in the figure, the upper end of the bottom plate 3 is connected to the middle plate 2 through a left-right moving component, forming a structure that realizes relative left-right movement of the middle plate 2 and the bottom plate 3 through the left-right moving mechanism, and the middle plate 2 is connected to the upper plate 1 through a front-back moving mechanism, forming a structure that realizes relative front-back movement of the middle plate 2 and the upper plate 1 through the front-back moving mechanism, so that after the precast concrete component is lifted, it can be moved short distances in four directions of left, right, front and back through the left-right moving mechanism and the front-back moving mechanism, thereby facilitating the precast concrete component to accurately reach the designated installation position. Specifically, left and right sliding grooves 29 and front and rear sliding grooves 43 which are arranged vertically are respectively provided on the two end surfaces of the middle plate 2 close to the bottom plate 3 and the upper plate 1; a lower sliding groove 30 corresponding to the left and right sliding grooves 29 is provided on the bottom plate 3; a left and right moving mechanism is arranged in the left and right sliding grooves 29 and the lower sliding grooves 30; an upper sliding groove 44 corresponding to the front and rear sliding grooves 43 is provided on the upper plate 1; and a front and rear moving mechanism is arranged in the front and rear sliding grooves 43 and the upper sliding grooves 44. It is convenient to limit the moving direction and distance of the left and right moving mechanism and the front and rear moving mechanism through the left and right sliding grooves 29, the front and rear sliding grooves 43, the upper sliding grooves 44 and the lower sliding grooves 30, and at the same time, the upper plate 1, the middle plate 2 and the bottom plate 3 can be fitted together.

[0029] like Figure 1-6The precast concrete component lifting structure shown, the left-right moving mechanism or the front-back moving mechanism includes a second connecting rod 32 and a pair of moving cylinders 31, the two moving cylinders 31 of the left-right moving mechanism are respectively detachably fixedly connected in the left-right sliding grooves 29 and the lower sliding grooves 30 by bolts, and the two moving cylinders 31 of the front-back moving mechanism are respectively detachably fixedly connected in the front-back sliding grooves 43 and the upper sliding grooves 44 by bolts, so that the upper plate 1, the middle plate 2 and the bottom plate 3 of the multiple moving cylinders 31 are connected together. A moving piston 33 is slidably connected in the moving cylinder 31, and the two ends of the second connecting rod 32 are detachably fixedly connected to the moving pistons 33 in the two moving cylinders 31 by bolts, so that the second connecting rod 32 is driven to move by the sliding of the moving piston 33 in the moving cylinder 31, thereby realizing the movement of the middle plate 2 relative to the bottom plate 3 or the upper plate 1. A plurality of third clamping grooves 34 are provided on the outer end surface of the movable piston 33, and a third sealing ring 35 is clamped and connected in the third clamping groove 34, so that the third sealing ring 35 is clamped and limited by the third clamping groove 34 to prevent the third sealing ring 35 from detaching from the outer end surface of the movable piston 33, and then the third sealing ring 35 is used to seal the gap between the movable piston 33 and the movable cylinder 31. The ends of the two mobile cylinders 31 that are close to each other are detachably fixedly connected with the cylinder sealing cover by bolt sealing, the second connecting rod 32 passes through the cylinder sealing cover, and a plurality of fourth clamping grooves 36 are opened on the cylinder sealing cover where the second connecting rod 32 passes through the cylinder sealing cover, the fourth clamping grooves 36 are clamped and connected with the fourth sealing ring 37, the second connecting rod 32 passes through the fourth sealing ring 37, so that the fourth sealing ring 37 is clamped and limited by the fourth clamping grooves 36 to prevent the fourth sealing ring 37 from detaching from the cylinder sealing cover, and then the fourth sealing ring 37 is used to block the gap between the cylinder sealing cover and the second connecting rod 32, and then cooperate with the third sealing ring 35 to form two relatively independent sealed chambers inside the mobile cylinder 31 at both ends of the mobile piston 33. The two ends of the moving cylinder 31 are connected with the third air inlet hole 39 and the fourth air inlet hole, respectively, so that air can be supplied to the moving cylinder 31 through the third air inlet hole 39 and the fourth air inlet hole, respectively, so that the moving piston 33 can move in the moving cylinder 31, and then the middle plate 2 can move relative to the bottom plate 3 or the upper plate 1. The third air inlet hole 39 on one of the moving cylinders 31 in the left-right moving mechanism or the front-back moving mechanism is connected with the fourth air inlet hole on the other moving cylinder 31, so that air can be supplied to the two moving cylinders 31 through the third air inlet hole 39 and the fourth air inlet hole, so that the two pistons in the two cylinders can move in the same direction, and then the middle plate 2 can move relative to the bottom plate 3 or the upper plate 1. The third air inlet hole 39 and the fourth air inlet hole are connected with the electromagnetic valve group 55, so that the electromagnetic valve group 55 can control the supply of air to the third air inlet hole 39 and the fourth air inlet hole.

[0030] like Figure 1-6In the precast concrete component lifting structure shown in the figure, the side walls of the left and right sliding grooves 29 and the front and rear sliding grooves 43 are extended with a plurality of first movable guide strips 40, the side walls of the upper sliding groove 44 and the lower sliding groove 30 are extended with a plurality of second movable guide strips 41, and the side walls of the movable cylinder 31 are provided with a plurality of movable guide strips 42, and the plurality of first movable guide strips 40 and second movable guide strips 41 are slidably connected in the movable guide strips 42, so that the middle plate 2 is connected with the upper plate 1 and the bottom plate 3 through the first movable guide strips 40, the second movable guide strips 41 and the movable guide strips 42, and can move relative to each other along the first movable guide strips 40 and the second movable guide strips 41 respectively.

[0031] like Figure 1-6 In the precast concrete component lifting structure shown in the figure, a plurality of first connecting grooves 45 and second connecting grooves 47 which are parallel to the left and right sliding grooves 29 and the front and rear sliding grooves 43 and are on the same end face are provided on the middle plate 2, and a third connecting groove and a fourth connecting groove 48 which correspond to the first connecting grooves 45 and the second connecting grooves 47 respectively are provided on the bottom plate 3 and the upper plate 1, a lower connecting slider 46 is connected in the first connecting groove 45 and the third connecting groove, and the lower connecting slider 46 is detachably fixedly connected to the bottom plate 3 by bolts, an upper connecting slider 49 is connected in the second connecting groove 47 and the fourth connecting groove 48, and the upper connecting slider 49 is detachably fixedly connected to the upper plate 1 by bolts, so that the lower connecting slider 46 and the upper connecting slider 49 are respectively arranged and connected through the first connecting groove 45 and the third connecting groove, the second connecting groove 47 and the fourth connecting groove 48. The inner walls of the first connection groove 45 and the second connection groove 47 are respectively extended with a plurality of first connection guide strips 50 and a second connection guide strip 51, the inner walls of the third connection groove and the fourth connection groove 48 are respectively extended with a plurality of third connection guide strips and a fourth connection guide strip, and the side walls of the upper connection slider 49 and the lower connection slider 46 are respectively provided with a plurality of first connection guide strips and a second connection guide strip 52, the first connection guide strip 50 and the third connection guide strip are slidably connected in the first connection guide strip, so that the middle plate 2 and the bottom plate 3 are connected together through the first connection guide strip 50, the third connection guide strip and the first connection guide strip, and can move along the first connection guide strip 50 and the third connection guide strip. The second connection guide strip 51 and the fourth connection guide strip are slidably connected in the second connection guide strip 52, so that the middle plate 2 and the upper plate 1 are connected together through the second connection guide strip 51, the fourth connection guide strip and the second connection guide strip, and can move along the second connection guide strip 51 and the fourth connection guide strip.

[0032] like Figure 1-6In the precast concrete component lifting structure shown, the upper end of the upper plate 1 is welded or detachably fixedly connected with a plurality of connecting rings 57 by bolts, so that the connecting rings 57 are connected to the upper plate 1. A steel wire rope 58 is tied and fixedly connected to the connecting ring 57, so that the connecting ring 57 is connected to the crane through the steel wire rope 58, thereby facilitating the lifting of the entire lifting device, and realizing the lifting of the precast concrete component by the lifting device.

[0033] like Figure 1-6 In the precast concrete component lifting structure shown, the clamping mechanism, the triggering mechanism, the left-right moving mechanism and the front-back moving mechanism are electrically connected to the control module assembly 56, and the movement of the clamping mechanism, the triggering mechanism, the left-right moving mechanism and the front-back moving mechanism is controlled by the control module assembly 56. The control module assembly 56 is a common single-chip microcomputer control circuit board electronic component on the market, which is used to receive and process the trigger signal generated by the triggering mechanism, and then control the clamping of the precast concrete component by the clamping mechanism. At the same time, the ventilation work of the clamping mechanism, the left-right moving mechanism and the front-back moving mechanism can be manually remotely controlled to control the placement of the precast concrete component, or to achieve short-distance movement and position adjustment of the precast concrete component after being lifted.

[0034] like Figure 1-6 In the precast concrete component lifting structure shown, an air pump 53 is detachably fixedly connected to the upper plate 1 by bolts, so that the air pump 53 is the source of the clamping mechanism, the left-right moving mechanism and the front-back moving mechanism. The air pump 53 is connected to the electromagnetic valve group 55 through the air pipe 54, and the clamping mechanism, the left-right moving mechanism and the front-back moving mechanism are connected to the electromagnetic valve group 55, that is, each of the first air inlet hole 16, the second air inlet hole 17, the third air inlet hole 39 and the fourth air inlet hole is connected to a electromagnetic valve, so that the opening and closing of each of the first air inlet hole 16, the second air inlet hole 17, the third air inlet hole 39 and the fourth air inlet hole is controlled by the electromagnetic valve. The air pump 53 and the electromagnetic valve group 55 are electrically connected to the control module assembly 56, so that the air pump 53 and the electromagnetic valve group 55 are controlled to work by the control module assembly 56.

[0035] like Figure 1-6 In the precast concrete component lifting structure shown, the clamping cylinder 9 and the moving cylinder 31 can be hydraulic cylinders or electric telescopic rods, which can be controlled to move and retract to drive the clamping slider 5 and the moving slider to move.

[0036] Unless otherwise specified, the device elements involved in the above embodiments are all conventional device elements, and the structural settings, working modes or control modes involved are all conventional settings, working modes or control modes in the art unless otherwise specified.

[0037] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. Precast concrete component lifting structure, including base plate (3), It is characterized in that The lower end surface of the bottom plate (3) is connected to a clamping mechanism for clamping a concrete member, the lower end surface of the bottom plate (3) is connected to a triggering mechanism, forming a structure in which the clamping mechanism is deployed and the concrete member is clamped and fixed by triggering the triggering mechanism, the upper end of the bottom plate (3) is connected to a middle plate (2) through a left-right moving assembly, forming a structure in which the middle plate (2) and the bottom plate (3) can move left-right relative to each other through the left-right moving mechanism, the middle plate (2) is connected to an upper plate (1) through a front-back moving mechanism, forming a structure in which the middle plate (2) and the upper plate (1) can move back-and-forth relative to each other through the front-and-back moving mechanism, the upper end of the upper plate (1) is connected to a plurality of connecting rings (57), the connecting rings (57) are connected to steel wire ropes (58), the clamping mechanism, the triggering mechanism, the left-right moving mechanism and the front-and-back moving mechanism are electrically connected to a control module assembly (56), forming a structure in which the movement of the clamping mechanism, the triggering mechanism, the left-right moving mechanism and the front-and-back moving mechanism is controlled by the control module assembly (56); The trigger mechanism comprises a trigger ball (27), a trigger plate (25), a first spring (24) and a second spring (26); a placement hole (23) is formed on the lower end surface of the bottom plate (3); the trigger plate (25) is connected to the placement hole (23) via the first spring (24); the trigger ball (27) is connected to the placement hole (23) via the second spring (26); and a portion of the trigger ball (27) protrudes from the placement hole (23); the diameter of the second spring (26) is greater than the diameter of the first spring (24); a limit plate (28) is connected to the bottom plate (3) at the placement hole (23); and a portion of the trigger ball (27) passes through the limit plate (28); The clamping mechanism comprises a clamping slider (5), a clamping cylinder (9), a first connecting rod (13), a positioning rod (18) and a clamping head (20); a plurality of clamping grooves (4) with a trapezoidal vertical section are provided on the lower end surface of the base plate (3); the clamping slider (5) is slidably connected in the clamping groove (4); the clamping cylinder (9) is connected to one end in the clamping groove (4); a clamping piston (10) is slidably connected in the clamping cylinder (9); the two ends of the first connecting rod (13) are respectively connected to the clamping piston (10) and the clamping slider (5); a plurality of first clamping grooves (11) are provided on the outer end surface of the clamping piston (10); and the first clamping grooves (11) are provided on the outer end surface of the clamping piston (10). (11) is internally clamped and connected with a first sealing ring (12); the first connecting rod (13) passes through the clamping cylinder (9); a plurality of second clamping grooves (14) are provided on the clamping cylinder (9); the second clamping grooves (14) are clamped and connected with a second sealing ring (15); the first connecting rod (13) passes through the second sealing ring (15); the two ends of the clamping cylinder (9) are connected with a first air inlet hole (16) and a second air inlet hole (17); the positioning rod (18) is connected to an end of the clamping slide block (5) away from the clamping cylinder (9); and the clamping head (20) is connected to the positioning rod (18) and the end away from the clamping slide block (5) by rotating the motor (21); The side end surface of the clamping slide groove (4) is provided with a plurality of rolling grooves (6), the rolling grooves (6) are provided with balls (8), and the balls (8) partially extend outside the rolling grooves (6); the side end surface of the clamping slide block (5) is provided with a clamping guide groove (7), and the balls (8) are slidably connected in the clamping guide groove (7); The positioning rod (18) is L-shaped, and a rotation groove (19) is formed at one end of the positioning rod (18) away from the clamping slide block (5). One end of the clamping head (20) is arranged in the rotation groove (19). The rotation motor (21) is connected to the positioning rod (18) above the rotation groove (19). The output shaft of the rotation motor (21) passes through the positioning rod (18) and is connected to the clamping head (20) in the rotation groove (19). A protective cover (22) is connected to the outside of the rotation motor (21).

2. The precast concrete component lifting structure according to claim 1, It is characterized in that The middle plate (2) is provided with left and right sliding grooves (29) and front and rear sliding grooves (43) arranged in a vertical direction at the two end surfaces close to the bottom plate (3) and the upper plate (1), respectively; the bottom plate (3) is provided with a lower sliding groove (30) corresponding to the left and right sliding grooves (29); the left and right moving mechanism is arranged in the left and right sliding grooves (29) and the lower sliding groove (30); the upper plate (1) is provided with an upper sliding groove (44) corresponding to the front and rear sliding grooves (43); the front and rear moving mechanism is arranged in the front and rear sliding grooves (43) and the upper sliding groove (44).

3. The precast concrete component lifting structure according to claim 2, It is characterized in that The left-right moving mechanism or the front-back moving mechanism comprises a second connecting rod (32) and a pair of moving cylinders (31); the two moving cylinders (31) of the left-right moving mechanism are respectively connected to the left-right sliding grooves (29) and the lower sliding groove (30); the two moving cylinders (31) of the front-back moving mechanism are respectively connected to the front-back sliding grooves (43) and the upper sliding groove (44); a moving piston (33) is slidably connected in the moving cylinder (31); two ends of the second connecting rod (32) are in contact with the moving pistons (33) in the two moving cylinders (31); The outer end surface of the movable piston (33) is provided with a plurality of third clamping grooves (34), a third sealing ring (35) is clamped and connected in the third clamping groove (34), a plurality of fourth clamping grooves (36) are provided on the movable cylinder (31) at the location where the second connecting rod (32) passes through the movable cylinder (31), a fourth sealing ring (37) is clamped and connected in the fourth clamping groove (36), the second connecting rod (32) passes through the fourth sealing ring (37), and the two ends of the movable cylinder (31) are respectively connected with a third air inlet hole (39) and a fourth air inlet hole.

4. The precast concrete component lifting structure according to claim 3, It is characterized in that A plurality of first movable guide strips (40) are extended from the side walls of the left and right sliding grooves (29) and the front and rear sliding grooves (43); a plurality of second movable guide strips (41) are extended from the side walls of the upper sliding groove (44) and the lower sliding groove (30); a plurality of movable guide strips (42) are formed on the side walls of the movable cylinder (31); and a plurality of the first movable guide strips (40) and the second movable guide strips (41) are slidably connected in the movable guide strips (42).

5. The precast concrete component lifting structure according to claim 3, It is characterized in that The middle plate (2) is provided with a plurality of first connecting grooves (45) and second connecting grooves (47) which are parallel to the left and right sliding grooves (29) and the front and rear sliding grooves (43); the bottom plate (3) and the upper plate (1) are provided with third connecting grooves and fourth connecting grooves (48) which correspond to the first connecting grooves (45) and the second connecting grooves (47), respectively; the first connecting grooves (45) and the third connecting grooves are connected to lower connecting sliding blocks (46); the second connecting grooves (47) and the fourth connecting grooves (48) are connected to upper connecting sliding blocks (49); the first connecting grooves (45) and the second connecting grooves (47) are connected to the upper connecting sliding blocks (49); ) are respectively extended with a plurality of first connecting guide strips (50) and a second connecting guide strip (51) from the inner walls thereof, a plurality of third connecting guide strips and a fourth connecting guide strip are respectively extended with the inner walls of the third connecting groove and the fourth connecting groove (48), a plurality of first connecting guide strips and a second connecting guide strip are respectively opened with the side walls of the upper connecting slider (49) and the lower connecting slider (46), the first connecting guide strip (50) and the third connecting guide strip are slidably connected in the first connecting guide strip, and the second connecting guide strip (51) and the fourth connecting guide strip are slidably connected in the second connecting guide strip (52).

6. The precast concrete component lifting structure according to claim 1, It is characterized in that An air pump (53) is connected to the upper plate (1); the air pump (53) is connected to a solenoid valve group (55) via an air supply pipe (54); the clamping mechanism, the left-right moving mechanism and the front-back moving mechanism are connected to the solenoid valve group (55); and the air pump (53) and the solenoid valve group (55) are electrically connected to a control module assembly (56).

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