Loosening device special for pile foundation construction guide pipe

Abstract

The utility model discloses a special loosening device for a pile foundation construction guide pipe, which comprises a cross beam used for hoisting, a bottom plate arranged at the lower part of the cross beam, vibration buffering seats connected between the cross beam and the bottom plate, a centrifugal vibration motor arranged between the vibration buffering seats, and a plurality of arc-shaped plates which can be attached to the inner wall of the guide pipe and are connected with the bottom plate in a sliding manner, adjusting assemblies for moving the arc-shaped plates are correspondingly arranged on the inner sides of the arc-shaped plates. According to the utility model, a clamp in the loosening device is changed into the adjustable arc-shaped plate, so that a series of problems caused by falling of the pulled guide pipe during pulling of the guide pipe are fundamentally solved, the integrity of the guide pipe is greatly protected, the guide pipe can be easily pulled out of concrete, and the construction efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of engineering construction, in particular to a special loosening device for pile foundation construction conduits. Background Art

[0002] During the process of pouring pile foundation concrete, the embedment depth of the conduit should be controlled within a certain range, generally 4 - 6 meters, to ensure the normal pouring of concrete. However, due to reasons such as concrete transportation, high temperature, and batching plant failure, the pouring of concrete may be interrupted. If the interruption time is too long, the concrete will settle, harden, and solidify, making it very difficult or even impossible to pull out the conduit, and the conduit will be left in the concrete, which not only affects the construction progress and quality but also causes significant economic losses. When pulling out the conduit, a loosening device is usually used to soften the concrete by vibration before pulling out the conduit.

[0003] However, in the existing loosening device, when the crane pulls out the conduit after the clamp holds the conduit, the clamp is extremely prone to slipping and can also damage the conduit, resulting in difficulties in the construction of pulling out the conduit. Content of the Utility Model

[0004] In order to solve the above problems, the utility model provides a special loosening device for pile foundation construction conduits.

[0005] The utility model is realized through the following technical solutions:

[0006] A special loosening device for pile foundation construction conduits includes a crossbeam for hoisting. A bottom plate is arranged below the crossbeam, and a shock-absorbing seat is connected between the crossbeam and the bottom plate. A centrifugal vibration motor is arranged between the shock-absorbing seats. Multiple arc-shaped plates that can fit the inner wall of the conduit are slidably connected to the lower part of the bottom plate, and a regulating component for moving the arc-shaped plates is arranged on the inner side corresponding to the arc-shaped plates.

[0007] Further optionally, multiple slide rails are arranged at the lower part of the bottom plate, sliders are slidably connected to the corresponding slide rails, and the corresponding sliders are fixedly connected to the inner walls of the corresponding arc-shaped plates.

[0008] Further optionally, the combined cross-section of multiple arc-shaped plates is cylindrical.

[0009] Further optionally, the regulating component includes an electric push rod fixed on the bottom plate. A first connecting plate corresponding to the number of arc-shaped plates is annularly arranged on the outer wall of the telescopic rod of the electric push rod. A second connecting plate is fixedly connected to the inner wall of the corresponding arc-shaped plate, and a regulating rod is hingedly fixed between the first connecting plate and the second connecting plate.

[0010] Further optionally, a rubber anti-slip ring is arranged on the outer side of the arc-shaped plate.

[0011] Compared with the existing technology, the beneficial effects of the present utility model are as follows: By changing the fixture in the loosener to an adjustable arc-shaped plate, a series of problems caused by the detachment of the catheter during extraction are fundamentally solved, greatly protecting the integrity of the catheter and enabling the catheter to be easily pulled out from the concrete, thus improving the construction efficiency. Brief Description of the Drawings

[0012] Figure 1 Figure 6 is a diagram of the state when the present utility model is in use;

[0013] Figure 2 Figure 10 is a partially enlarged schematic diagram of the present utility model;

[0014] Figure 3 Figure 14 is a partial cross-sectional schematic diagram;

[0015] In the figures: cross beam 1, bottom plate 2, shock absorption seat 3, centrifugal vibration motor 4, arc-shaped plate 5, rubber anti-slip ring 6, slide rail 7, slider 8, second connecting plate 9, electric push rod 10, first connecting plate 11, adjusting rod 12, catheter 13. Detailed Description of the Preferred Embodiments

[0016] The present utility model will be further described in detail below in conjunction with the drawings and the specific embodiments:

[0017] As shown in Figure 1 , 2 , and 3, a special loosener for a pile foundation construction catheter 13 includes a cross beam 1 for hoisting. A bottom plate 2 is provided below the cross beam 1. A shock absorption seat 3 is connected between the cross beam 1 and the bottom plate 2. A centrifugal vibration motor 4 is arranged between the shock absorption seats 3. A plurality of arc-shaped plates 5 that can be attached to the inner wall of the catheter 13 are slidably connected to the lower part of the bottom plate 4. A regulating assembly for moving the arc-shaped plates 5 is provided on the inner side corresponding to the arc-shaped plates 5.

[0018] As shown in Figure 3 , a plurality of slide rails 7 are provided on the lower part of the bottom plate 2. Corresponding sliders 8 are slidably connected to the slide rails 7. The corresponding sliders 8 are fixedly connected to the inner walls of the corresponding arc-shaped plates 5.

[0019] As shown in Figure 1 , 2 , and 3, the combined cross-section of the plurality of arc-shaped plates 5 is cylindrical.

[0020] As shown in Figure 2 , the regulating assembly includes an electric push rod 10 fixed on the bottom plate 2. A plurality of first connecting plates 11 corresponding to the arc-shaped plates 5 are annularly arranged on the outer wall of the telescopic rod of the electric push rod 10. A second connecting plate 9 is fixedly connected to the inner wall of the corresponding arc-shaped plate 5. An adjusting rod 12 is hinged and fixed between the first connecting plate 11 and the second connecting plate 9.

[0021] As shown in Figure 2 ,3 As shown in the figure, a rubber anti-slip ring 6 is provided on the outer side of the arc-shaped plate 5.

[0022] The implementation principle of a special loosener for a pile foundation construction conduit in an embodiment of the present application is as follows:

[0023] When it is necessary to vibrate and pull out the conduit 13, first hoist the loosener to the upper part of the conduit 13. After hoisting it to the upper part of the conduit 13, insert the cylinder composed of a plurality of arc-shaped plates 5 into the conduit 13. There will be a certain gap between the arc-shaped plates 5 inserted into the conduit 13 and the conduit 13. At the same time, start the electric push rod 10. The telescopic rod of the electric push rod 10 retracts. While the telescopic rod retracts, it will drive the adjusting rod 12 connected to the telescopic rod to move upward. While the adjusting rod 12 moves upward, all the arc-shaped plates 5 will be translated and expanded. At the same time, the slider 8 will slide outward along the slide rail 7. When the arc-shaped plates 5 are translated and expanded, all the arc-shaped plates 5 will be closely attached to the inner wall of the conduit 13. After being closely attached, stop the electric push rod 10 from working, so as to realize the connection and fixation of the loosener and the conduit 13. At the same time, the rubber anti-slip ring 6 will be squeezed, thereby increasing the friction between the arc-shaped plates 5 and the inner wall of the conduit 13;

[0024] After the loosener is connected and fixed to the conduit 13, start the centrifugal vibration motor 4. The centrifugal vibration motor 4 will drive all the arc-shaped plates 5 inserted and fixed at the pipe orifice of the conduit 13 to vibrate at a high frequency. When the arc-shaped plates 5 vibrate at a high frequency, they will drive the conduit 13 to vibrate synchronously. The generated vibration force is transmitted to the concrete in the hole through the conduit 13, and the concrete becomes soft under vibration, so that the conduit 13 can be easily pulled out from the concrete;

[0025] After pulling out, start the electric push rod 10 to make the telescopic rod of the electric push rod 10 extend. While the telescopic rod extends, all the arc-shaped plates 5 will retract. After retraction, the loosener and the conduit 13 are separated, thus completing the work of pulling out one conduit 13, avoiding the risk of the conduit 13 falling off when pulling out the conduit 13, greatly protecting the integrity of the conduit 13, and also enabling the conduit 13 to be easily pulled out from the concrete, improving the construction efficiency.

[0026] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A special loosening device for pile foundation construction conduits, comprising a crossbeam (1) for hoisting. A bottom plate (2) is arranged below the crossbeam (1). A shock-absorbing seat (3) is connected between the crossbeam (1) and the bottom plate (2). A centrifugal vibration motor (4) is arranged between the shock-absorbing seats (3). Its characteristics are: A plurality of arc-shaped plates (5) that can be attached to the inner wall of the conduit (13) are slidably connected below the bottom plate (2). A corresponding adjusting assembly is arranged inside the corresponding arc-shaped plates (5) for moving them.

2. The special loosening device for pile foundation construction conduits according to claim 1, characterized in that: A plurality of slide rails (7) are arranged below the bottom plate (2). Sliders (8) are slidably connected to the corresponding slide rails (7). The corresponding sliders (8) are fixedly connected to the inner walls of the corresponding arc-shaped plates (5).

3. The special loosening device for pile foundation construction conduits according to claim 1, characterized in that: The combined cross-section of the plurality of arc-shaped plates (5) is cylindrical.

4. The special loosening device for pile foundation construction conduits according to claim 1, characterized in that: The adjusting assembly includes an electric push rod (10) fixed on the bottom plate (2). A plurality of first connecting plates (11) corresponding to the number of arc-shaped plates (5) are annularly arranged on the outer wall of the telescopic rod of the electric push rod (10). A second connecting plate (9) is fixedly connected to the inner wall of the corresponding arc-shaped plate (5). An adjusting rod (12) is hingedly fixed between the first connecting plate (11) and the second connecting plate (9).

5. The special loosening device for pile foundation construction conduits according to claim 1, characterized in that: A rubber anti-slip ring (6) is arranged on the outer side of the arc-shaped plate (5).

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