Precise positioning and hoisting clamp for fabricated building component

Abstract

The utility model discloses an assembly type building component accurate positioning hoisting clamp which comprises an adjusting frame, the top end of the adjusting frame is fixedly connected with a top frame, the inner top end of the top frame is fixedly connected with two fixing plates, a transverse rod transversely penetrates through the surfaces of the fixing plates, and the transverse rod is rotationally connected with the fixing plates through bearing seats. The cross rod penetrates through the upper end surface of the vertical rod and is fixedly connected with the vertical rod; the bottom end of the vertical rod is connected with a balancing weight; the component is clamped and hoisted by arranging the adjusting frame, the hoisting speed and stability are improved, the vertical rod and the balancing weight which can swing are arranged below the top frame, swing damping is formed by utilizing the inertia principle, when the adjusting frame shakes due to external force, the balancing weight is kept relatively static due to gravity, and the balancing weight is prevented from falling off. And the vertical rod drives the transverse rod to generate reverse torque, so that the attenuation speed of the shaking amplitude is increased, the component deviation in the hoisting process is effectively reduced, and the stability is improved.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically to a precision positioning and hoisting clamp for prefabricated building components. Background Technology

[0002] With the rapid development of industrialized construction, prefabricated buildings have been widely used in the construction field due to their advantages such as high efficiency, environmental protection, and controllable quality. In the construction process of prefabricated buildings, the hoisting of building components is one of the key steps, and hoisting clamps, as important tools for lifting, transporting, and installing components, directly affect the quality, efficiency, and safety of the construction.

[0003] Traditional methods of hoisting building components often involve directly binding and lifting them using simple tools such as wire ropes and shackles. This method is not only cumbersome to operate and difficult to guarantee the stability and safety of the components during hoisting, but traditional clamps also cannot eliminate swaying of the components, increasing construction safety hazards due to shaking during hoisting. Therefore, a new technical solution is proposed to address this issue. Utility Model Content

[0004] The purpose of this utility model is to provide a precise positioning and hoisting fixture for prefabricated building components, which solves the problems mentioned in the background art. Traditional building component hoisting often uses simple tools such as wire ropes and shackles for direct binding and hoisting, which makes it difficult to ensure the stability and safety of the components during the hoisting process. Furthermore, traditional fixtures cannot eliminate the swaying of components, and the shaking during hoisting increases the construction safety hazards.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a precision positioning and hoisting fixture for prefabricated building components, comprising an adjustment frame, a top frame fixedly connected to the top of the adjustment frame, two fixing plates fixedly connected to the inner top of the top frame, a horizontal bar extending through the surface of the fixing plate, the horizontal bar being rotatably connected to the fixing plate via a bearing seat, the horizontal bar extending through the upper surface of a vertical bar and fixedly connected to the vertical bar, and a counterweight connected to the bottom end of the vertical bar.

[0006] In this technical solution, the components are clamped and hoisted by setting an adjustment frame, which improves the speed and stability of hoisting. Furthermore, a swingable vertical rod and a counterweight are set under the top frame. The principle of inertia is used to form swing damping. When the adjustment frame is shaken by an external force, the counterweight remains relatively stationary due to gravity. The vertical rod drives the horizontal rod to generate a reverse torque, which increases the decay rate of the sway amplitude, effectively reduces the component deviation during hoisting, and improves stability.

[0007] Preferably, a suspension rope is fixedly connected to the top of the top frame, a bidirectional lead screw is rotatably connected to the inner side of the adjustment frame, two adjustment blocks pass through the surface of the bidirectional lead screw and are threadedly connected to the adjustment blocks, and a clamping seat is fixedly connected to the bottom of the adjustment block.

[0008] Preferably, a servo motor is fixedly connected to the outer wall of the adjustment frame corresponding to the horizontal height of the bidirectional lead screw. The tail end of the drive shaft of the servo motor is connected to one end of the bidirectional lead screw via a coupling. Cleaning rings are fixedly connected to the left and right side walls of the adjustment block, and the bidirectional lead screw passes laterally through the center of the cleaning ring.

[0009] Preferably, both ends of the crossbar are fixedly connected to a driving bevel gear, and the top of the top frame on both sides of the crossbar is rotatably connected to a rotating rod. A driven bevel gear is fixedly sleeved on the surface of the rotating rod, and the driving bevel gear and the driven bevel gear mesh.

[0010] Preferably, the left and right inner walls of the top frame are fixedly connected to support plates, and the top of the support plates is fixedly connected to an oil cylinder, which is located directly below the rotating rod.

[0011] Preferably, the bottom end of the rotating rod passes through the center of the top of the oil cylinder and is located inside the rotating rod. A plurality of symmetrically distributed telescopic sleeves are fixedly connected to the outer surface of the rotating rod. A telescopic rod is slidably connected to the inner side of the telescopic sleeve. A spring is fixedly connected between the telescopic rod and the inner wall of the telescopic groove. An arc-shaped plate is fixedly connected to one end of the telescopic rod facing the inner wall of the oil cylinder.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model improves the speed and stability of hoisting by setting an adjustment frame to clamp and lift components. Furthermore, a swingable vertical rod and counterweight are set below the top frame. The principle of inertia is used to form swing damping. When the adjustment frame is shaken by external force, the counterweight remains relatively stationary due to gravity. The vertical rod drives the horizontal rod to generate a reverse torque, which increases the attenuation rate of the shaking amplitude, effectively reduces component displacement during hoisting, and improves stability.

[0014] 2. This invention utilizes rotating rods on both sides of the crossbar. When the counterweight swings, the crossbar and the driving bevel gear drive the driven bevel gear and the rotating rods to rotate. During rotation, the lower end of the rotating rod rotates within the oil cylinder. The viscous resistance of the oil creates hydraulic damping, consuming the swaying kinetic energy. When the rotational speed is too high, the telescopic rod inside the telescopic sleeve extends against the spring tension under centrifugal force, and the arc-shaped plate forms mechanical friction with the inner wall of the oil cylinder, further consuming kinetic energy. Under the dual damping effect, the time for the component to transition from the maximum swaying state to a stable state is significantly shortened, improving stability. Attached Figure Description

[0015] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0016] Figure 1 This is an overall view of the present invention;

[0017] Figure 2 This is a schematic diagram of the internal structure of the adjustment frame of this utility model;

[0018] Figure 3 This is a schematic diagram of the top frame structure of this utility model;

[0019] Figure 4 This is a partial enlarged view of point A of this utility model.

[0020] In the diagram: 1. Adjusting frame; 2. Two-way lead screw; 201. Servo motor; 3. Adjusting block; 301. Clamping seat; 302. Cleaning ring; 4. Top frame; 5. Suspension rope; 6. Vertical rod; 601. Counterweight; 602. Fixing plate; 7. Horizontal rod; 8. Driving bevel gear; 9. Rotating rod; 901. Driven bevel gear; 10. Oil cylinder; 11. Support plate; 12. Telescopic sleeve; 13. Telescopic rod; 14. Spring; 15. Arc plate. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description will further elaborate on them in conjunction with specific embodiments.

[0022] A precision positioning and hoisting clamp for prefabricated building components, see [link / reference] Figures 1 to 4 The system includes an adjusting frame 1, a top frame 4 with a lifting rope 5 fixedly connected to its top, a double-acting lead screw 2 rotatably connected to the inner side of the adjusting frame 1, two adjusting blocks 3 passing through the surface of the double-acting lead screw 2 and threadedly connected to the adjusting blocks 3, a clamping seat 301 fixedly connected to the bottom of the adjusting blocks 3, and a servo motor 201 fixedly connected to the outer wall of the adjusting frame 1 corresponding to the horizontal height of the double-acting lead screw 2. The tail end of the drive shaft of the servo motor 201 is connected to one end of the double-acting lead screw 2 via a coupling. During hoisting, the servo motor 201 starts, driving the double-acting lead screw 2 to rotate, so that the two adjusting blocks 3 can drive the clamping seat 301 to reach the component. At both ends, the servo motor 201 then reverses, causing the two adjusting blocks 3 to clamp the component with their respective clamping seats 301, ensuring the stability of the component and thus completing the fixing operation. Then, the entire adjusting frame 1 and the top frame 4 are lifted and transported by the hoisting rope 5. Cleaning rings 302 are fixedly connected to the left and right side walls of the adjusting block 3. The bidirectional lead screw 2 passes through the center of the cleaning ring 302 laterally. The inner wall of the cleaning ring 302 is equipped with a cleaning brush. Therefore, during the movement along the surface of the bidirectional lead screw 2, the bidirectional lead screw 2 that the adjusting block 3 needs to pass through will be cleaned in advance, avoiding the attachment of sand and gravel particles from affecting normal movement.

[0023] Specifically, such as Figure 2As shown, a top frame 4 is fixedly connected to the top of the adjusting frame 1. Two fixing plates 602 are fixedly connected to the inner top of the top frame 4. A horizontal bar 7 runs horizontally through the surface of the fixing plate 602. The horizontal bar 7 is rotatably connected to the fixing plate 602 through a bearing seat. The horizontal bar 7 runs through the upper surface of the vertical bar 6 and is fixedly connected to the vertical bar 6. A counterweight 601 is connected to the bottom of the vertical bar 6. The counterweight 601 is designed to be detachable and assembled. It is connected to the vertical bar 6 by bolts. The total counterweight can be adjusted according to the weight of the hoisted component to achieve the optimal anti-sway range. The counterweight 601 uses the principle of inertia to form swing damping. When the adjusting frame 1 is shaken by an external force, the counterweight 601 remains relatively stationary due to gravity. The vertical bar 6 drives the horizontal bar 7 to generate a reverse torque, which increases the attenuation speed of the sway amplitude, effectively reduces the component deviation during hoisting, and improves stability.

[0024] Furthermore, such as Figure 3 As shown, both ends of the crossbar 7 are fixedly connected to the driving bevel gear 8. The top of the top frame 4 on both sides of the crossbar 7 is rotatably connected to the rotating rod 9. The surface of the rotating rod 9 is fixedly sleeved with the driven bevel gear 901. The driving bevel gear 8 and the driven bevel gear 901 mesh. The left and right inner walls of the top frame 4 are fixedly connected to the support plate 11. The top of the support plate 11 is fixedly connected to the oil cylinder 10. The oil cylinder 10 is located directly below the rotating rod 9. The inside of the oil cylinder 10 is filled with wear-resistant hydraulic oil, which has a certain viscous resistance. When the rotating rod 9 rotates, it plays the role of hydraulic damping, which consumes the swaying kinetic energy and allows the swaying state to recover stability more quickly.

[0025] It is worth noting that, such as Figure 4 As shown, the bottom end of the rotating rod 9 passes through the center of the top of the oil cylinder 10 and is located inside the rotating rod 9. Multiple symmetrically distributed telescopic sleeves 12 are fixedly connected to the outer surface of the rotating rod 9. A telescopic rod 13 is slidably connected to the inner side of the telescopic sleeve 12. A spring 14 is fixedly connected between the telescopic rod 13 and the inner wall of the telescopic groove. An arc-shaped plate 15 is fixedly connected to one end of the telescopic rod 13 facing the inner wall of the oil cylinder 10. When the rotation speed is too high, the telescopic rod 13 inside the telescopic sleeve 12 extends against the tension of the spring 14 under the action of centrifugal force. The arc-shaped plate 15 forms mechanical friction with the inner wall of the oil cylinder 10, consuming additional kinetic energy. Under the action of double damping, the time for the component to go from the maximum swaying state to the stable state is greatly shortened, improving stability. It should be noted that a rubber ring is provided at the position where the rotating rod 9 passes through the oil cylinder 10 for sealing, thus preventing oil spillage. The surface of the telescopic rod 13 is treated with a polytetrafluoroethylene oleophobic coating to reduce the surface adhesion between the oil and the rod. When the oil comes into contact with the coating surface, it forms droplets that detach from the rod under the action of gravity and centrifugal force, reducing the amount of oil remaining in the expansion gap. When used in conjunction with the sealing ring, it further enhances the sealing effect and effectively prevents oil from entering the expansion sleeve 12.

[0026] In addition, all components designed in this utility model are general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. Those skilled in the art can fully implement them, so there is no need to elaborate. The content protected by this utility model does not involve improvements to the internal structure and method.

Claims

1. A precision positioning and hoisting fixture for prefabricated building components, comprising an adjusting frame (1), characterized in that: The top of the adjustment frame (1) is fixedly connected to a top frame (4), and the top inner top of the top frame (4) is fixedly connected to two fixing plates (602). A horizontal bar (7) runs through the surface of the fixing plate (602). The horizontal bar (7) and the fixing plate (602) are rotatably connected through a bearing seat. The horizontal bar (7) runs through the upper surface of the vertical rod (6) and is fixedly connected to the vertical rod (6). A counterweight (601) is connected to the bottom of the vertical rod (6).

2. The precision positioning and hoisting clamp for prefabricated building components according to claim 1, characterized in that: The top of the top frame (4) is fixedly connected to a hanging rope (5), and the inner side of the adjustment frame (1) is rotatably connected to a two-way screw rod (2). Two adjustment blocks (3) pass through the surface of the two-way screw rod (2) and are threadedly connected to the adjustment blocks (3). The bottom of the adjustment block (3) is fixedly connected to a clamping seat (301).

3. The precision positioning and hoisting clamp for prefabricated building components according to claim 2, characterized in that: A servo motor (201) is fixedly connected to the outer wall of the adjustment frame (1) corresponding to the horizontal height of the bidirectional lead screw (2). The tail end of the drive shaft of the servo motor (201) is connected to one end of the bidirectional lead screw (2) through a coupling. Cleaning rings (302) are fixedly connected to the left and right side walls of the adjustment block (3). The bidirectional lead screw (2) passes laterally through the center of the cleaning ring (302).

4. The precision positioning and hoisting fixture for prefabricated building components according to claim 1, characterized in that: Both ends of the crossbar (7) are fixedly connected to the active bevel gear (8), and the top of the top frame (4) on both sides of the crossbar (7) is rotatably connected to the rotating rod (9). The surface of the rotating rod (9) is fixedly sleeved with the driven bevel gear (901), and the active bevel gear (8) and the driven bevel gear (901) mesh.

5. A precision positioning and hoisting clamp for prefabricated building components according to claim 1, characterized in that: The top frame (4) is fixedly connected to the left and right inner walls with support plates (11), and the top of the support plate (11) is fixedly connected to an oil cylinder (10), which is located directly below the rotating rod (9).

6. A precision positioning and hoisting clamp for prefabricated building components according to claim 4, characterized in that: The bottom end of the rotating rod (9) passes through the center of the top of the oil cylinder (10) and is located inside the rotating rod (9). Multiple symmetrically distributed telescopic sleeves (12) are fixedly connected to the outer surface of the rotating rod (9). A telescopic rod (13) is slidably connected to the inner side of the telescopic sleeve (12). A spring (14) is fixedly connected between the telescopic rod (13) and the inner wall of the telescopic groove. An arc plate (15) is fixedly connected to one end of the telescopic rod (13) facing the inner wall of the oil cylinder (10).

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