Anti-return belt device for applying plastic drainage plate and construction method of anti-return belt device

Abstract

The invention discloses a plastic drainage plate hitting anti-return device and a construction method thereof. The plastic drainage plate hitting anti-return device comprises a drainage plate quick connecting mechanism and an anti-return pile tip. The quick connecting mechanism for the drainage plate comprises two clamping plates. The two clamping plates are hinged to form a scissor-shaped structure, so that a clamping part is formed at the upper end of each clamping plate, and an adjusting part is formed at the lower end of each clamping plate; the two clamping parts are used for clamping and fixing a drainage plate; a groove is formed in the top face of the anti-return pile tip, a limiting assembly is fixedly arranged in the groove and used for limiting the vertical positions of the two adjusting parts in the groove, and the closer the distance between the bottom of the clamping plate and the bottom of the groove is, the smaller the distance between the two clamping parts is. According to the invention, the quick connection of the drainage plate can be realized, the clamping force can be continuously provided, the drainage plate is prevented from being brought back when the insertion pipe of the plate insertion machine is upwards lifted back, and the construction efficiency of the drainage plate is improved.

Description

Technical Field

[0001] The present invention relates to the field of drainage board construction, and more specifically, to a plastic drainage board injection anti-slip device and a construction method thereof. Background Art

[0002] Preloading foundation treatment is one of the common methods for soft soil foundation treatment, which can effectively improve the bearing capacity of the foundation and reduce post-construction settlement. In preloading foundation treatment, plastic drain boards are usually used as vertical drainage channels. The injection quality of the drain boards is the key to determining the quality of foundation treatment. During the construction of drain boards, plug-in machines are usually used for construction. During the process of plugging and pulling back the plug-in machines, there is always a phenomenon of drain boards being brought back, which seriously affects the quality of preloading foundation treatment.

[0003] At present, the main measures to control the back-pulling of plastic drain boards include using high water pressure to eliminate the back-pulling of drain boards and using specific pile shoes to eliminate the back-pulling. The device or equipment structure and operation of the above methods are usually more complicated, and the applicability to soil layers is limited, especially to harder soil layers. Summary of the invention

[0004] An object of the present invention is to solve at least the above problems and to provide at least the advantages which will be described hereinafter.

[0005] In order to achieve these purposes and other advantages according to the present invention, a plastic drain board injection anti-slip device is provided, comprising: a drain board quick connection mechanism and an anti-slip pile tip; The drain board quick connection mechanism comprises two clamping plates; the two clamping plates are hinged into a scissor-shaped structure, so that the upper end of the clamping plate forms a clamping part and the lower end forms an adjusting part; the two clamping parts are used to clamp and fix the drain board; A groove is provided on the top surface of the anti-bring-back pile tip, and a limiting component is fixedly arranged in the groove to limit the vertical positions of the two adjusting parts in the groove, and as the bottom of the clamping plate is closer to the bottom of the groove, the distance between the two clamping parts is smaller.

[0006] Preferably, the anti-bring-back pile tip is in the shape of a triangular prism, with one of the sharp corners facing downward, and the top surface size is 3 to 6 cm larger than the outer diameter of the insertion pipe of the drainage board inserting machine.

[0007] Preferably, the anti-bringback pile tip is in the shape of a cone, with the cone angle facing downward, and the top surface size is 3 to 6 cm larger than the outer diameter of the insertion pipe of the drainage board inserting machine.

[0008] Preferably, a friction pad layer is fixedly provided on one side of the clamping portion of the clamping plate facing the drain board.

[0009] Preferably, the adjusting portion of the clamping plate comprises a plurality of driving strip rods arranged in a comb-teeth shape, and the strip rods of the two clamping plates are staggered.

[0010] Preferably, the limiting assembly includes positioning blocks fixedly arranged on both sides of the groove, and the width of the positioning blocks gradually increases from the top surface to the bottom surface of the groove so that a downward inclined slope is formed on the side toward the center of the groove; a plurality of serrated blocks are arranged on the inclined surface of the positioning block at intervals along the height direction.

[0011] Preferably, the vertical cross-section of the sawtooth block is in a triangular shape, the bottom surface of which is arranged horizontally, and one of the side surfaces is fitted and fixed to the inclined surface of the positioning block.

[0012] Preferably, a stabilizing block is fixedly provided at the bottom of the clamping plate, and the stabilizing block horizontally extends out of the clamping plate on one side close to the limit block so that the stabilizing block is clamped on the bottom of the sawtooth block; the spacing between two adjacent sawtooth blocks above and below and the distance between the lowest sawtooth block and the bottom surface of the groove are not less than the thickness of the stabilizing block.

[0013] Another object of the present invention is to provide a construction method for applying an anti-backlash device to a plastic drainage board, comprising the following steps: S1. After the drain plate passes through the insertion tube of the plate inserting machine, it is inserted between the two clamping parts of the drain plate quick connection mechanism, and the drain plate quick connection mechanism is pressed down so that the two adjustment parts are located in the limit assembly; S2. Lower the intubation pipe and tighten the drainage board to make the anti-backflow pile tip fit closely with the intubation pipe; S3. Continue to lower the pipe until the drainage board reaches the designed depth; S4. Lift the intubation pipe to the ground and cut off the drainage board; S5, the board inserting machine moves to the next pile position, and repeats steps S1 to S4 to install the next drainage board.

[0014] Preferably, in step S1, the bottom of the clamping plate is brought into contact with the bottom of the groove without damaging the drain plate.

[0015] The present invention has at least the following beneficial effects: The anti-backlash device for applying plastic drain boards provided by the present invention can realize the quick connection of drain boards through the drain board quick connection mechanism, and can continuously provide clamping force to prevent the plugging pipe of the plugging machine from pulling the drain board back when it is lifted upward, thereby improving the construction efficiency of the drain board. The drain board quick connection mechanism can be applicable to drain boards of different specifications, and can also provide different clamping forces to the same drain board.

[0016] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of the anti-backlash device for the plastic drainage board of the present invention; Figure 2 It is a schematic diagram of the vertical cross-section structure of the quick connection mechanism of the drainage board of the present invention; Figure 3 This is a schematic structural diagram of the anti-carryback pile tip of the present invention when it is in the shape of a triangular prism; Figure 4 This is a schematic structural diagram of the anti-carryback pile tip of the present invention when it is in a cone shape; Figure 5 It is a side structural schematic diagram of the quick connection mechanism of the drainage board of the present invention; Figure 6 for Figure 2 A partial enlarged view of the middle part; DETAILED DESCRIPTION

[0018] The present invention is further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0019] It should be noted that the experimental methods described in the following embodiments are conventional methods unless otherwise specified, and the reagents and materials are commercially available unless otherwise specified; in the description of the present invention, the terms "lateral", "longitudinal", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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.

[0020] like Figure 1 As shown, the present invention provides a plastic drain board injection anti-slip device, comprising: a drain board quick connection mechanism and an anti-slip pile tip 1; The drain plate quick connection mechanism comprises two clamping plates 4; the two clamping plates 4 are hinged into a scissor-shaped structure, so that the upper end of the clamping plate 4 forms a clamping portion 41, and the lower end forms an adjusting portion 42; the two clamping portions 41 are used to clamp and fix the drain plate 3; A groove 11 is provided on the top surface of the anti-bring-back pile tip 1, and a limiting component is fixedly arranged in the groove 11 to limit the vertical positions of the two adjusting parts 42 in the groove 11, and as the bottom of the clamping plate 4 is closer to the bottom of the groove 11, the distance between the two clamping parts 41 is smaller.

[0021] In this technical solution, the adjustment parts 42 of the two clamping plates 4 are located in the groove and are limited by the limit assembly. As can be seen from the scissor-shaped structure of the two clamping plates 4, when the distance between the two adjustment parts is closer, the distance between the two clamping parts 41 is also closer, so that the drain board 3 can be continuously clamped to prevent the insertion tube of the board inserting machine from pulling the drain board 3 back when it is lifted upward. According to the thickness of the drain board 3, the vertical position of the adjustment part 42 in the groove 11 can be flexibly adjusted, so that drain boards of different specifications can be applied, and different clamping forces can be provided to the same drain board.

[0022] In another technical solution, Figure 3 As shown, the anti-bring-back pile tip 1 is in the shape of a triangular prism, one of the sharp corners is facing downward, and the top surface size is 3 to 6 cm larger than the outer diameter of the insertion pipe of the drainage board inserting machine. Figure 2 (a), (b) and (c) are respectively a front view, a side view and a top view of the anti-bring-back pile tip 1.

[0023] In another technical solution, Figure 4 As shown, the anti-bringback pile tip 1 is in a cone shape, with its cone angle facing downward, and the top surface size is 3 to 6 cm larger than the outer diameter of the insertion pipe of the drainage board inserting machine. Figure 3 (a), (b) and (c) are respectively a front view, a side view and a top view of the anti-bring-back pile tip 1.

[0024] In another technical solution, a friction pad 5 is fixedly provided on one side of the clamping portion 41 of the clamping plate 4 facing the drain plate 3. The friction pad 5 is used to increase the friction between the clamping plate 4 and the drain plate 3, and a conventional rubber friction pad can be selected.

[0025] In another technical solution, Figure 5 As shown, the adjusting portion 42 of the clamping plate 4 includes a plurality of driving strip rods arranged in a comb-tooth shape, and the strip rods of the two clamping plates 4 are arranged alternately. Specifically, each of the strip rods is provided with a transverse through hole at a symmetrical position, and the shaft passes through the through holes on each of the strip rods of the two clamping plates 42 alternately in sequence, and is fixed by nuts at both ends of the shaft, so as to realize the hinge connection of the two clamping plates 4.

[0026] In another technical solution, Figure 2As shown, the limiting assembly includes positioning blocks 6 fixedly arranged on both sides of the groove 11, and the width of the positioning blocks 6 gradually increases from the top surface of the groove to the bottom surface, so that a slope inclined downward is formed on the side facing the center of the groove; a plurality of sawtooth blocks 61 are arranged at intervals on the slope of the positioning block 6 along the height direction. On the one hand, the spacing between the positioning blocks 6 on both sides of the groove 11 gradually decreases from the top surface of the groove to the bottom surface; on the other hand, the bottom of the drain plate quick connection mechanism is limited to different heights between the two positioning blocks 6 by each of the sawtooth blocks 61, so as to adjust the angle between the two adjustment parts 42, and then adjust the spacing between the two clamping parts 41. That is, the closer the bottom of the clamping plate 4 is to the bottom of the groove 11, the smaller the spacing between the two clamping parts 41.

[0027] In another technical solution, Figure 6 As shown, the vertical cross-section of the sawtooth block 61 is triangular, and its bottom surface is horizontally arranged, and one of the side surfaces is fixedly fitted with the inclined surface of the positioning block. The bottom surface of the sawtooth block 61 blocks the corresponding adjustment portion 42 from moving upward, thereby limiting the position of the clamping plate 4. The side of the sawtooth block 61 facing the center of the groove 11 is also a downwardly inclined surface, which can facilitate the downward movement of the clamping plate 4.

[0028] Furthermore, in order to improve the stability of the clamping plate 4, a stabilizing block 43 is fixedly provided at the bottom of the clamping plate 4, and the stabilizing block 43 horizontally extends out of the clamping plate 4 on one side close to the limit block 6, so that the stabilizing block 4 is clamped at the bottom of the sawtooth block 61; the spacing between two adjacent sawtooth blocks 61 and the distance between the lowest sawtooth block 61 and the bottom surface of the groove 11 are not less than the thickness of the stabilizing block 61. Figure 6 As shown, the width of the stabilizing block 43 is greater than the width of the bottom of the clamping plate 4, and then the stabilizing block 3 extends to one side of the limit block 6 to form a platform, which is used to abut against the bottom of the sawtooth block 61. Preferably, the length of the stabilizing block 43 is consistent with the overall length of the clamping plate 4, that is, the top of the stabilizing block 43 is fixedly connected to the bottom of each of the strip rods of the corresponding clamping plate 4, and the sawtooth block 4 is arranged along the length direction of the limit block 6, and the stability of the clamping plate 4 is ensured by increasing the contact area between the stabilizing block 43 and the sawtooth block 61.

[0029] The present invention also provides a construction method for applying the anti-backlash device to the plastic drainage board, comprising the following steps: S1, after the drain plate 3 passes through the insertion tube 2 of the plate inserting machine, it is inserted between the two clamping parts 41 of the drain plate quick connection mechanism, and the drain plate quick connection mechanism is pressed down to make the two adjustment parts 42 located in the limit assembly; S2, lower the insert pipe 2, tighten the drainage board 3, so that the anti-backflow pile tip 1 and the insert pipe 2 are closely fitted; S3, continue to lower the cannula 2 until the drainage board 3 reaches the designed depth; S4, lift the intubation pipe 2 to the ground and cut off the drainage board 3; S5, the board inserting machine moves to the next pile position, and repeats steps S1 to S4 to install the next drainage board 3.

[0030] When lifting the insert pipe 2, if the friction between the insert pipe 2 and the quick connection mechanism of the drain board provides an upward force to the clamping plate 4, the serrated blocks 61 arranged along the height direction of the limit block 6 can continuously provide limit to the clamping plate 4 to prevent the drain board 3 from being brought back.

[0031] Furthermore, in step S1, the bottom of the clamping plate 4 is brought into contact with the bottom of the groove 11 without damaging the drain plate 3. When the clamping plate 4 is at the bottom, it can provide the maximum clamping force to the drain plate 3.

[0032] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation modes, and they can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A plastic drainage board anti-backlash device, characterized in that: include: Drain board quick connection mechanism and anti-bring-back pile tip; The drain board quick connection mechanism comprises two clamping plates; the two clamping plates are hinged into a scissor-shaped structure, so that the upper end of the clamping plate forms a clamping part and the lower end forms an adjusting part; the two clamping parts are used to clamp and fix the drain board; A groove is provided on the top surface of the anti-bring-back pile tip, and a limiting component is fixedly arranged in the groove to limit the vertical positions of the two adjusting parts in the groove, and as the bottom of the clamping plate is closer to the bottom of the groove, the distance between the two clamping parts is smaller.

2. The anti-backlash device for plastic drainage board application as claimed in claim 1, characterized in that: The anti-bring-back pile tip is in the shape of a triangular prism, one of the sharp corners is downward, and the top surface size is 3-6 cm larger than the outer diameter of the insertion pipe of the drainage board inserting machine.

3. The anti-backlash device for plastic drainage board application as claimed in claim 1, characterized in that: The anti-bring-back pile tip is in a cone shape, with the cone angle facing downward, and the top surface size is 3-6 cm larger than the outer diameter of the insertion pipe of the drainage board inserting machine.

4. The anti-backlash device for plastic drainage board application as claimed in claim 1, characterized in that: A friction pad layer is fixedly arranged on one side of the clamping portion of the clamping plate facing the drainage board.

5. The anti-backlash device for plastic drainage board application as claimed in claim 1, characterized in that: The adjusting portion of the clamping plate comprises a plurality of driving strip rods arranged in a comb-teeth shape, and the strip rods of the two clamping plates are arranged in an alternating manner.

6. The anti-backlash device for plastic drainage board application as claimed in claim 1, characterized in that: The limiting assembly includes positioning blocks fixedly arranged on both sides of the groove, and the width of the positioning block gradually increases from the top surface to the bottom surface of the groove, so that a downward inclined slope is formed on the side facing the center of the groove; a plurality of sawtooth blocks are arranged at intervals on the inclined surface of the positioning block along the height direction.

7. The anti-backlash device for plastic drainage board application as claimed in claim 6, characterized in that: The vertical cross-section of the sawtooth block is in a triangular shape, the bottom surface of which is arranged horizontally, and one of the side surfaces is fitted and fixed to the inclined surface of the positioning block.

8. The anti-backlash device for plastic drainage board application as claimed in claim 7, characterized in that: A stabilizing block is fixedly provided at the bottom of the clamping plate, and the stabilizing block horizontally extends out of the clamping plate on one side close to the limit block so that the stabilizing block is clamped on the bottom of the sawtooth block; the spacing between two adjacent sawtooth blocks above and below and the distance between the lowest sawtooth block and the bottom surface of the groove are not less than the thickness of the stabilizing block.

9. A construction method for applying an anti-slip device to a plastic drainage board as claimed in claim 1, characterized in that: The following steps are involved: S1. After the drain plate passes through the insertion tube of the plate inserting machine, it is inserted between the two clamping parts of the drain plate quick connection mechanism, and the drain plate quick connection mechanism is pressed down so that the two adjustment parts are located in the limit assembly; S2. Lower the intubation pipe and tighten the drainage board to make the anti-backflow pile tip fit closely with the intubation pipe; S3. Continue to lower the pipe until the drainage board reaches the designed depth; S4. Lift the intubation pipe to the ground and cut off the drainage board; S5, the board inserting machine moves to the next pile position, and repeats steps S1 to S4 to install the next drainage board.

10. The construction method for applying the anti-backlash device to the plastic drainage board according to claim 9, characterized in that: In step S1, the bottom of the clamping plate is brought into contact with the bottom of the groove without damaging the drain plate.

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