Prestressed pipe pile hoisting device in high-cold region

Abstract

The utility model relates to the technical field of engineering construction, concretely to a high cold region prestressed pipe pile hoisting device, including hoist board, the top of hoist board is provided with the lifting ring, both sides of hoist board all are provided with the connecting ring, the steel wire rope is connected on the connecting ring, the one end of steel wire rope is connected with the circular ring away from the connecting ring, the circular ring is installed on the connecting plate, is provided with the inside bracing subassembly on the lateral wall of connecting plate, the inside bracing subassembly includes the support cylinder, a plurality of arc plates are hinged to the side end of support cylinder through first connecting rod, the second electric push rod is arranged in the support cylinder, the output of second electric push rod passes through support cylinder and is connected with the movable block, the second connecting rod is hinged between movable block and arc plate. The utility model has solved the problem that the stability is poor in the hoisting process of the existing pipe pile hoisting mechanism, and the pipe pile is easy to fall at high place, causes certain security hidden danger.

Description

Technical Field

[0001] This utility model relates to the field of engineering construction technology, specifically a prestressed pipe pile hoisting device for high-altitude and cold regions. Background Technology

[0002] When constructing engineering projects in high-altitude and cold regions, the unique climate and presence of permafrost present challenges. To prevent the reduction in foundation stability caused by permafrost thawing due to seasonal changes, prestressed concrete pipe piles are commonly used as supporting foundations in permafrost areas. However, because prestressed concrete pipe piles are prefabricated components, they require specific handling and transportation during construction. Existing pipe pile hoisting mechanisms mostly rely on ropes to secure the piles. Due to the low coefficient of friction between the ropes and the piles, it is difficult to maintain the piles' horizontal position during hoisting, resulting in poor stability and a risk of the piles falling from heights, posing a safety hazard and making them inconvenient to use. Utility Model Content

[0003] To address the aforementioned problems in the prior art, this utility model provides a prestressed pipe pile hoisting device for high-altitude and cold regions, which solves the problem that existing pipe pile hoisting mechanisms have poor stability during the hoisting process, making it easy for pipe piles to fall from heights and causing certain safety hazards.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a prestressed concrete pipe pile hoisting device for high-altitude and cold regions, comprising a hoisting plate, a hoisting ring at the top of the hoisting plate, connecting rings on both sides of the hoisting plate, a steel wire rope connected to the connecting ring, a circular ring connected to the end of the steel wire rope away from the connecting ring, the circular ring being mounted on the connecting plate, and an inner support assembly provided on the side wall of the connecting plate; the inner support assembly includes a support cylinder, several arc-shaped plates are hinged to the side end of the support cylinder via a first connecting rod, a second electric push rod is provided inside the support cylinder, the output end of the second electric push rod passes through the support cylinder and is connected to a movable block, and a second connecting rod is hinged between the movable block and the arc-shaped plates.

[0005] By adopting the above structural design, and by setting up an internal support assembly consisting of a support cylinder, an arc-shaped plate, a second electric push rod, a movable block, and a second connecting rod, the movable block can be moved by the second electric push rod, which in turn drives the arc-shaped plate to open, providing internal support and fixation for the prestressed pipe pile. At the same time, in conjunction with the connecting plate and steel wire rope, this method replaces the traditional method of fixing the pipe pile solely by friction of the hoisting rope. It can effectively improve the horizontal stability of the pipe pile during hoisting, reduce the risk of the pipe pile falling from a height, and is suitable for the hoisting needs of prestressed pipe piles in cold regions.

[0006] Preferably, an electric push rod is provided at the bottom center of the lifting plate, and a pressure block is connected to the output end of the electric push rod.

[0007] With the above structural design, an electric push rod and a pressure block are set at the bottom of the connecting plate. The electric push rod can drive the pressure block to move downward and press against the top of the pipe pile, thereby achieving limiting and fixing from above. In conjunction with the internal support component, a multi-directional fixing structure of "top and bottom + inside" is formed, which further enhances the overall stability of the pipe pile during hoisting and prevents the pipe pile from shaking or shifting during hoisting.

[0008] Preferably, the bottom of the pressure block is provided with an arc-shaped buffer part, which is made of elastic buffer material.

[0009] With the above structural design, the bottom of the pressure block is provided with an arc-shaped buffer part and elastic buffer material. On the one hand, the arc-shaped structure can better match the top shape of the prestressed pipe pile, increase the contact area between the pressure block and the pipe pile, and improve the reliability of the limit. On the other hand, the elastic buffer material can play a buffering role when the pressure block is pressed down, avoiding damage to the pipe pile or device caused by the rigid contact between the pressure block and the pipe pile. At the same time, it can also enhance the friction between the pressure block and the pipe pile, further improving the fixing stability.

[0010] Preferably, the outer wall of the arc-shaped plate is provided with an anti-slip pad, the anti-slip pad is made of rubber material, and the surface of the anti-slip pad is provided with anti-slip texture.

[0011] With the above structural design, the outer wall of the arc plate is equipped with a rubber anti-slip pad with anti-slip texture. The rubber itself has a large coefficient of friction, and the anti-slip texture further increases the roughness of the contact surface, which can significantly improve the friction between the arc plate and the inner wall of the pipe pile. This makes the internal support of the pipe pile more solid and effectively prevents the arc plate from slipping on the inner wall of the pipe pile during hoisting, further ensuring the stability and safety of the pipe pile hoisting.

[0012] Compared with the prior art, the beneficial effects of this utility model are: By incorporating an internal support assembly consisting of a support cylinder, an arc-shaped plate, a second electric push rod, a movable block, a first connecting rod, and a second connecting rod, the second electric push rod drives the movable block to move, which in turn causes the arc-shaped plate to open via the second connecting rod, providing internal support and fixation for the prestressed concrete pipe pile. Simultaneously, in conjunction with connecting plates and wire ropes, this replaces the traditional method of relying solely on rope friction to fix the pipe pile, effectively improving the horizontal stability during pipe pile hoisting, reducing the risk of the pipe pile falling from heights, and meeting the hoisting needs of prestressed concrete pipe piles in cold regions. Furthermore, this device is adaptable to prestressed concrete pipe piles of different specifications, demonstrating strong applicability. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the internal support component of this utility model; Figure 3 This is a side view of the pressure block of this utility model. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-3 This utility model provides a technical solution: a prestressed pipe pile hoisting device for high-altitude and cold regions. The hoisting device includes a hoisting plate 1, and a hoisting ring 9 is fixedly installed on the top of the hoisting plate 1 for connecting with external hoisting equipment such as a crane hook to realize the hoisting function of the entire device.

[0016] Both sides of the lifting plate 1 are fixed with connecting rings 5, and each connecting ring 5 is connected with a wire rope 3. The wire rope 3 can be replaced according to the specifications of the pipe pile and the lifting requirements. The end of the wire rope 3 away from the connecting ring 5 is connected to a ring 7. The ring 7 is installed on the connecting plate 6. An inner support assembly 2 is set between the two connecting plates 6. Through the linkage of the wire rope 3, the inner support assembly 2 and the lifting plate 1 form a structure for coordinated lifting.

[0017] The internal support assembly 2 includes a support cylinder 201, which serves as the main load-bearing structure of the internal support assembly 2. Three arc-shaped plates 202 are hinged to the side end of the support cylinder 201 via a first connecting rod 205. A second electric push rod 203 is installed inside the support cylinder 201. The output end of the second electric push rod 203 passes through the support cylinder 201 and is connected to a movable block 204. A second connecting rod 207 is hinged between the movable block 204 and the arc-shaped plates 202. When it is necessary to support the inside of the prestressed concrete pile, the second electric push rod 203 is activated, its output end extends, and pushes the movable block 204 downward. When the movable block 204 moves, the first connecting rod 205 and the second connecting rod 207, through which the arc-shaped plates 202 are hinged, cause them to open outward around the hinge point with the side end of the support cylinder 201 until the outer wall of the arc-shaped plate 202 is tightly abutted against the inner wall of the concrete pile, thereby achieving support and fixation from inside the concrete pile.

[0018] To enhance the friction between the curved plate and the inner wall of the pipe pile, an anti-slip pad 206 is provided on the outer wall of the curved plate 202. The anti-slip pad is made of rubber and has anti-slip texture on its surface. The high coefficient of friction of rubber combined with the rough surface of the anti-slip texture can effectively prevent the curved plate 202 from slipping on the inner wall of the pipe pile, ensuring the stability of the internal support.

[0019] An electric push rod 4 is fixedly installed at the bottom center of the lifting plate 1, and the output end of the electric push rod 4 is connected to the pressure block 8. After the internal support assembly 2 completes the support and fixation from inside the pipe pile, the electric push rod 4 is activated, and its output end extends downward and pushes the pressure block 8 downward until the bottom of the pressure block 8 is tightly pressed against the top of the pipe pile, thereby achieving limit fixation from above the pipe pile.

[0020] To optimize the contact effect between the pressure block and the top of the pipe pile, the bottom of the pressure block 8 is provided with an arc-shaped buffer part 801, which is made of elastic buffer material such as elastic rubber or elastic resin.

[0021] Working principle: First, the operator moves the hoisting device above the prestressed concrete pile to be hoisted. The hoisting equipment is then connected to the lifting ring 9 located at the top of the hoisting plate 1, suspending the entire device and aligning it with the central axis of the concrete pile.

[0022] Next, the inner support assembly 2 is slowly lowered into the cavities at both ends of the prestressed concrete pipe pile. The second electric push rod 203 inside the support cylinder 201 is activated, causing its output end to push the movable block 204 to move. The movement of the movable block 204 is transmitted to the three arc-shaped plates 202 through the second connecting rod 207 hinged to it, causing the arc-shaped plates 202 to rotate outward and open around their hinge points with the side ends of the support cylinder 201.

[0023] Based on the inner diameter of the pipe pile, the extension of the second electric push rod 203 is precisely controlled, allowing the arc-shaped plate 202 to fully open until the anti-slip pad 206 on its outer wall tightly adheres to the inner wall of the pipe pile. The rubber material and anti-slip texture design of the anti-slip pad 206 effectively increase friction, prevent internal slippage, and ensure firm support.

[0024] Then, the electric push rod 4, installed at the bottom center of the lifting plate 1, is operated so that its output end extends downward, pushing the pressure block 8 downward. The arc-shaped buffer part 801 at the bottom of the pressure block 8 is made of elastic buffer material, which can well adapt to the curved shape of the top of the pipe pile. The pressure block 8 is pressed down until the buffer part 801 is elastically pressed against the top of the pipe pile, achieving stable pressing of the pipe pile from above.

[0025] At this point, the pipe pile is firmly fixed in the device. The connection system consisting of connecting rings 5, wire ropes 3, and circular rings 7 on both sides of the lifting plate 1 and the connecting plate 6 on the other side can adaptively adjust and maintain the force balance of the pipe pile during the lifting process, keeping it in a horizontal state.

[0026] Finally, by slowly lifting the lifting ring 9 using the lifting equipment, the prestressed pipe pile can be safely and stably lifted and transported to the designated location.

[0027] Contents not described in detail in this specification are existing technologies known to those skilled in the art. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A hoisting device for prestressed concrete pipe piles in high-altitude and cold regions, characterized in that: The system includes a lifting plate (1), with a lifting ring (9) on the top of the lifting plate (1) and connecting rings (5) on both sides of the lifting plate (1). A steel wire rope (3) is connected to the connecting ring (5), and a circular ring (7) is connected to the end of the steel wire rope (3) away from the connecting ring (5). The circular ring (7) is installed on a connecting plate (6), and an inner support assembly (2) is provided on the side wall of the connecting plate (6). The inner support assembly (2) includes a support cylinder (201), and several arc plates (202) are hinged to the side end of the support cylinder (201) through a first connecting rod (205). A second electric push rod (203) is provided inside the support cylinder (201), and the output end of the second electric push rod (203) passes through the support cylinder (201) and is connected to a movable block (204). A second connecting rod (207) is hinged between the movable block (204) and the arc plate (202).

2. The prestressed pipe pile hoisting device for high-altitude and cold regions according to claim 1, characterized in that: An electric push rod (4) is provided at the bottom center of the hoisting plate (1), and a pressure block (8) is connected to the output end of the electric push rod (4).

3. The prestressed pipe pile hoisting device for high-altitude and cold regions according to claim 2, characterized in that: The bottom of the pressure block (8) is provided with an arc-shaped buffer part (801), which is made of elastic buffer material.

4. The prestressed pipe pile hoisting device for high-altitude and cold regions according to claim 1, characterized in that: The outer wall of the arc plate (202) is provided with an anti-slip pad (206), which is made of rubber and has anti-slip texture on its surface.

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