Pipe piece hoisting clamp device

Abstract

The utility model relates to a pipe piece hoisting clamp device. The clamping ends of the lifting claw assemblies are located at the two ends of the cross beam correspondingly, and the lifting claw assemblies are used for clamping the two sides of a segment pile and dragging the bottom of the segment pile; the pressing rods are arranged at the bottom of the cross beam, and the telescopic ends of the pressing rods penetrate through the cross beam to the top face to be used for abutting against the top face of the segment pile to prevent tilting; the rubber pads are arranged at the ends, located at the bottom of the cross beam, of the pressing rods correspondingly, and the pulling plate assembly is arranged on the top face of the cross beam in a telescopic mode and used for pulling the cross beam and driving the pressing rods to move towards the bottom of the cross beam according to the lever principle. The lever principle of the movable pulling plate assembly is matched with an external lifting hook to drive the pressing rod to ascend and descend, a pipe piece pile on the lifting claw assembly can be pressed downwards, placed and tilted, the pipe piece pile lifting device can also adapt to pipe piece piles of different heights, and applicability is improved.

Description

Technical Field

[0001] This utility model relates to the field of segment stacking hoisting clamps, and specifically to a segment hoisting clamping device. Background Technology

[0002] In tunnel shield engineering, the tunnel segments, as the outermost barrier of the tunnel, can resist the pressure of the surrounding water and soil. It can be said that the quality of the tunnel segment stacking directly affects the construction safety of the entire tunnel.

[0003] Currently, the traditional method for transporting tunnel segments is to fix the segments to slings and then use lifting equipment to lift the slings to move the segments.

[0004] However, in practice, this method has the following drawbacks:

[0005] 1. During the process of bundling the tunnel segments, mechanical equipment is needed to lift the tunnel segments, and manual positioning and bundling are required, which is time-consuming, labor-intensive, and inefficient.

[0006] 2. During hoisting, the tunnel segments are prone to swaying due to inertia, which can lead to collisions or even detachment, causing production accidents and threatening the personal safety of workers.

[0007] Existing technology 202322566938.7 discloses a shield tunnel segment hoisting device. Although it solves the above problems, its inner support foot is fixed and cannot be extended or retracted. Since there are certain differences in the height of each segment and the height between the pads placed at the bottom of the segments, the height between each stack of segments also varies. Existing patents can only be applied to stacks of segments with a fixed height and cannot adapt to stacks of segments with different heights. Utility Model Content

[0008] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a segment hoisting clamp device.

[0009] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a segment hoisting clamping device, comprising a crossbeam, a claw assembly disposed on the crossbeam with clamping ends located at both ends of the crossbeam for clamping the sides of the segment stack and dragging the bottom of the segment stack, multiple pressure rods disposed at the bottom of the crossbeam with telescopic ends penetrating through the crossbeam to the top surface for abutting the top surface of the segment stack to prevent it from tilting, multiple rubber pads disposed on the multiple pressure rods at one end of the bottom of the crossbeam, and a pull plate assembly telescopically disposed on the top surface of the crossbeam for pulling the crossbeam and driving the multiple pressure rods to move towards the bottom of the crossbeam through the lever principle.

[0010] Preferably, the pull plate assembly includes an n-shaped drive pull plate located at the center of the top surface of the crossbeam along the width direction of the crossbeam and extending through the bottom of both ends of the crossbeam to the bottom; four limiting grooves respectively located on both sides of the extension ends of the drive pull plate; four limiting blocks corresponding to the contact surfaces of the crossbeam and the extension ends of the drive pull plate extending into the four limiting grooves; multiple connecting plates with one end hinged to one end of multiple pressure rods located on the top surface of the crossbeam and the other end hinged to both sides of the drive pull plate; two support blocks located on the top surface of the crossbeam and between the multiple pressure rods and the drive pull plate, respectively hinged to the center of the multiple connecting plates; and a lifting ring located on the top surface of the drive pull plate.

[0011] Preferably, the lifting claw assembly includes two elongated sliding holes at both ends of the crossbeam, two threaded rods rotatably disposed within the two elongated sliding holes and placed along the length of the crossbeam, two drive plates slidably disposed within the elongated sliding holes and threadedly connected to the two threaded rods, two support lifting claws disposed at the lower ends of the opposite sides of the two drive plates for supporting the stack of tube segments, four limiting support drive wheels rotatably disposed on the contact surfaces between the two drive plates and the inner walls of the two elongated sliding holes, four limiting slide tracks corresponding to the inner walls of the two elongated sliding holes, and a dual drive motor disposed in the middle of the crossbeam with its drive end connected to the two threaded rods respectively; the threads of the two threaded rods are opposite.

[0012] Preferably, the top surfaces of both support claws are provided with contoured grooves that fit into the bottom of the segment stack.

[0013] Preferably, both drive plates are provided with pulleys at their bottom.

[0014] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0015] This invention utilizes the lever principle of the movable pull plate assembly in conjunction with an external hook to drive the lifting and lowering of the pressure rod. This not only presses the segment stacks on the lifting claw assembly to prevent loosening and tilting, but also adapts to segment stacks of different heights, improving applicability. Attached Figure Description

[0016] The technical solution of this utility model will be further described below with reference to the accompanying drawings:

[0017] Appendix Figure 1 This is a frontal cross-sectional structural diagram of the segment hoisting clamp device of this utility model;

[0018] Appendix Figure 2 This is a cross-sectional structural diagram of the end face of the segment hoisting clamp device described in this utility model;

[0019] Appendix Figure 3 This is a top view of the segment hoisting clamp device described in this utility model.

[0020] The components include: 1. Crossbeam; 2. Lifting claw assembly; 21. Long strip sliding hole; 22. Threaded rod; 23. Drive plate; 24. Supporting lifting claw; 25. Supporting drive wheel; 26. Dual drive motor; 27. Limiting slide; 3. Pressure rod; 4. Rubber pad; 5. Pull plate assembly; 51. Drive pull plate; 52. Limiting slide groove; 53. Limiting block; 54. Connecting plate; 55. Supporting block; 56. Lifting ring; 6. Contouring groove; 7. Pulley. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0022] Appendix Figure 1-3 The segment lifting clamping device of this utility model includes a crossbeam 1; lifting claw assemblies 2, which are mounted on the crossbeam 1 with clamping ends located at both ends of the crossbeam 1 to clamp the sides and bottom of the segment stack; multiple pressure rods 3, which are mounted at the bottom of the crossbeam 1 and extend through the crossbeam 1 to the top surface to abut against the top surface of the segment stack to prevent it from tilting; multiple rubber pads 4, which are telescopically mounted on the top surface of the crossbeam 1 to pull the crossbeam 1 and drive the multiple pressure rods 3 toward the crossbeam via a lever principle. 1. A pull plate assembly 5 that moves in the bottom direction; the pull plate assembly 5 includes a drive pull plate 51 arranged in the middle of the top surface of the crossbeam 1 along the width direction of the crossbeam 1, with its two bottom extension ends respectively penetrating the crossbeam 1 to the bottom in an n-shape; four limiting grooves 52 respectively arranged on both sides of the two end extension ends of the drive pull plate 51; four limiting blocks 53 correspondingly arranged at the contact surfaces of the crossbeam 1 and the two end extension ends of the drive pull plate 51 extending into the four limiting grooves 52; and one end of each block is hinged to multiple pressure rods 3 located at one end of the top surface of the crossbeam 1 and the other end of the rods 3. The beam 1 is equipped with multiple connecting plates 54 hinged to both sides of the drive plate 51; two support blocks 55 located on the top surface of the beam 1 and between the multiple pressure rods 3 and the drive plate 51, and hinged to the middle of the multiple connecting plates 54; and a lifting ring 56 located on the top surface of the drive plate 51. The lifting claw assembly 2 includes two elongated sliding holes 21 located at both ends of the beam 1; two threaded rods 22 rotatably disposed within the two elongated sliding holes 21 and placed along the length of the beam 1; and two threaded rods 22 slidably disposed within the elongated sliding holes 21 and connected to the two threaded rods 22. The system includes two drive plates 23 threadedly connected to the threaded rod 22; two support claws 24 respectively located at the lower end of the opposite side of the two drive plates 23 for supporting the stack of tube segments; four limiting support drive wheels 25 respectively rotatably mounted on the contact surfaces of the two drive plates 23 and the inner walls of the two long sliding holes 21; four limiting slides 27 respectively corresponding to the inner walls of the two long sliding holes 21; and a dual drive motor 26 located in the middle of the crossbeam 1 with its drive end connected to both threaded rods 22; the threads of the two threaded rods 22 are opposite.

[0023] Furthermore, the top surfaces of both support claws 24 are provided with contoured grooves 6 that fit against the bottom of the segment stack, increasing the contact surface with the bottom surface of the segment stack.

[0024] Furthermore, both drive plates 23 are equipped with pulleys 7 at their bottoms for easy translation.

[0025] In use: The collection is driven by an external hook device to move the crossbeam 1, which in turn drives the claw assembly 2 and the pull plate assembly 5 to move. When it moves directly above the segment stack, it drives the crossbeam 1 to descend towards the segment stack. At this time, the distance between the two drive plates 23 at both ends of the crossbeam 1 is the largest. The descent stops when the bottom pulley 7 of the drive plate 23 contacts the bottom surface of the track. At this point, the segment stack is positioned between the two drive plates 23. Then, the dual drive motors 26 drive the two threaded rods 22 to rotate. Since the threads of the two threaded rods 22 are opposite, they drive the two drive plates 23 to move closer to both sides of the segment stack within the elongated sliding holes 21. Then, the limiting support drive wheels 25 on the drive plates 23 roll within the limiting slide tracks 27 in the elongated sliding holes 21. The two drive plates 23 then drive the support claws 24 to move towards the bottom of the segment stack. When one side of the two drive plates 23 is in contact with both sides of the segment stack, and the support claws 24 are inserted into the bottom of both sides of the segment stack, the hook device pulls the lifting ring 56 upwards. The lifting ring 56 then drives the drive pull plate 51 upwards, and the drive pull plate 51 then drives the connecting... One end of plate 54 moves upward, and since the middle of connecting plate 54 is hinged to support block 55, the other end moves downward. Then, the other end of connecting plate 54 drives pressure rod 3 to move towards the top surface of segment stack. When the end of pressure rod 3 with rubber pad 4 presses against the top surface of segment stack, the drive pull plate 51 is immediately limited and cannot move upward. The drive pull plate 51 and pressure rod 3 are mutually limited and locked. At this time, the hook cup continues to rise. Then, the crossbeam 1 is pulled up by drive pull plate 51, connecting plate 54 and support block 55. The crossbeam 1 drives drive plate 23 to rise. Drive plate 23 drives support claw 24 to rise. Support claw 24 drives segment stack to move upward. When it rises to a certain height, it drives segment stack to move to the next target location.

[0026] The above are merely specific application examples of this utility model and do not constitute any limitation on the scope of protection of this utility model. All technical solutions formed by equivalent transformations or equivalent substitutions fall within the scope of protection of this utility model.

Claims

1. A segment hoisting clamp device, characterized in that: It includes a crossbeam, a claw assembly mounted on the crossbeam with clamping ends located at both ends of the crossbeam to clamp the sides of the segment stack and drag the bottom of the segment stack, multiple pressure rods mounted at the bottom of the crossbeam with telescopic ends extending through the crossbeam to the top surface to abut against the top surface of the segment stack to prevent it from tilting, multiple rubber pads mounted on the bottom end of the multiple pressure rods, and a pull plate assembly telescopically mounted on the top surface of the crossbeam to pull the crossbeam and drive the multiple pressure rods to move towards the bottom of the crossbeam through the lever principle.

2. The segment hoisting clamp device according to claim 1, characterized in that: The pull plate assembly includes an n-shaped drive pull plate located in the middle of the top surface of the crossbeam along the width direction of the crossbeam, with its two bottom extensions penetrating the crossbeam to the bottom; four limiting grooves located on both sides of the extensions at both ends of the drive pull plate; four limiting blocks located at the contact surfaces of the crossbeam and the extensions at both ends of the drive pull plate, extending into the four limiting grooves; multiple connecting plates, one end of which is hinged to multiple pressure rods located at one end of the top surface of the crossbeam, and the other end of which is hinged to both sides of the drive pull plate; two support blocks located on the top surface of the crossbeam, between the multiple pressure rods and the drive pull plate, and hinged to the middle of the multiple connecting plates; and a lifting ring located on the top surface of the drive pull plate.

3. The segment hoisting clamp device according to claim 1, characterized in that: The lifting claw assembly includes two elongated sliding holes at both ends of the crossbeam, two threaded rods rotatably disposed within the two elongated sliding holes and placed along the length of the crossbeam, two drive plates slidably disposed within the elongated sliding holes and threadedly connected to the two threaded rods, two support lifting claws disposed at the lower ends of the opposite sides of the two drive plates for supporting the stack of tube segments, four limiting support drive wheels rotatably disposed on the contact surfaces between the two drive plates and the inner walls of the two elongated sliding holes, four limiting slide tracks corresponding to the inner walls of the two elongated sliding holes, and a dual drive motor disposed in the middle of the crossbeam with its drive end connected to the two threaded rods respectively; the threads of the two threaded rods are opposite.

4. The segment hoisting clamp device according to claim 3, characterized in that: Both of the aforementioned support claws have contoured grooves on their top surfaces that fit into the bottom of the segment stack.

5. The segment hoisting clamp device according to claim 3, characterized in that: Both drive boards are equipped with pulleys at their bottom.

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