Plastic drainage body and matching plug-in device

Abstract

The present invention discloses a plastic drainage body and a matching insertion device for soft foundation treatment in the field of soft foundation treatment technology. The plastic drainage body includes a tubular plate core and a filter membrane wrapped around the outside of the plate core. The outer surface of the plate core is evenly distributed with groove teeth, and filter holes are arranged between adjacent groove teeth. The inner surface of the plate core is provided with an annular clamping strip; the insertion device includes an inner tube and an outer tube that are mutually sleeved, and the tail ends of the inner tube and the outer tube are provided with a vibration device, the front end of the inner tube is provided with a cone head, and the inner tube is provided with a clamping device. The tubular structure of the plastic drainage body of the present invention provides a larger space for air extraction and drainage, which can improve the working efficiency; the plastic drainage body with a tubular structure greatly enhances its bending resistance, greatly avoiding the bending, twisting and folding of traditional plastic drainage boards; the insertion device utilizes a structural form combining an inner tube and an outer tube, which can not only protect the drainage body during insertion, avoiding the smearing effect of filter membrane blockage during the insertion process of the traditional drainage board, but also can stably detach from the drainage body during the withdrawal process, avoiding the back-carrying phenomenon of the traditional bayonet structure.

Description

Technical Field

[0001] The invention relates to the technical field of soft foundation treatment, and in particular to a plastic drainage body used for soft foundation treatment and a matching insertion device. Background Art

[0002] At present, drainage boards are commonly used for drainage operations in soft foundation treatment. The commonly used SPB-A (B) (C) series plastic drainage boards have a flat rectangular cross-section. Traditional drainage boards are composed of two parts: a board core and a filter membrane. The board core serves as the supporting structure of the overall drainage board and mainly plays the role of exhaust and drainage. The filter membrane is coated on the outside of the board core and plays the role of reverse filtration to prevent soil particles from entering the board core and causing blockage. However, it was found in actual projects that the head of the traditional board plugging machine pipe boot is a flat pipe mouth with a bayonet rod next to the pipe mouth. When the board is plugged in, the bayonet rod temporarily blocks the main drainage board. When the drainage board is inserted into the foundation and the pipe is withdrawn, the bayonet rod is detached. This bayonet structure sometimes fails and a back-carrying phenomenon occurs (the bayonet rod fails to successfully detach from the drainage board and brings the drainage board out), affecting the construction quality. During the insertion process of the traditional plastic drainage board, the filter membrane directly rubs against the silt soil, which will produce a smearing effect of filter membrane blockage, reducing the drainage effect of the filter membrane. In addition, the flat drainage board has low bending stiffness. As the foundation settles, the plastic drainage board will undergo lateral bending deformation, and even twisting and folding during the settlement period, which will greatly weaken the effectiveness of the drainage board. Summary of the invention

[0003] In order to overcome the above-mentioned shortcomings of the existing drain boards, the technical problem to be solved by the present invention is: to provide a new type of plastic drainage body and a matching insertion device that can promote vacuum drainage, reduce the back-carrying phenomenon of the drain boards, reduce the smearing effect when the drain boards are inserted, and improve the bending stiffness of the drain boards.

[0004] The technical solution adopted by the present invention to solve its technical problem is:

[0005] The plastic drainage body includes a tubular plate core and a filter membrane wrapped around the outside of the plate core. The outer surface of the plate core is evenly distributed with groove teeth, and filter holes are arranged between adjacent groove teeth. The inner surface of the plate core is provided with an annular clip, which is coaxial with the plate core and is evenly spaced along the axis of the plate core.

[0006] Furthermore, the groove teeth are evenly spaced and axially symmetrically arranged along the outer surface of the board core, the number of the groove teeth is not less than 30, and the height of the groove teeth is 0.5cm-1cm.

[0007] Furthermore, the filter holes are evenly spaced in layers on the plate core, the number of each layer is equivalent to the number of groove teeth, and the aperture of the filter holes is 0.5cm-1cm.

[0008] Furthermore, the height of the annular clip strip is 0.2-0.3 cm, and the interval between adjacent annular clip strips is 1 cm-2 cm.

[0009] An insertion device for a plastic drainage body comprises an inner tube and an outer tube which are sleeved with each other, the plate core can be placed in the annular cavity formed by the inner tube and the outer tube, the tail ends of the inner tube and the outer tube are provided with a vibration device, the front end of the inner tube is provided with a cone head, and an opening is provided on the tube wall near the cone head, a clamping device is provided in the inner tube, the clamping device comprises a clamping plate which can pass through and retract into the inner tube from the opening, and when the clamping plate passes through the opening, it can be clamped on the annular clamping strip in the plate core.

[0010] Furthermore, the inner tube and the outer tube are both connected to the vibration device through a threaded structure, and the inner tube and the outer tube can be connected through a multi-section structure thread to increase the length of the tube body.

[0011] Furthermore, the openings include two and are symmetrically arranged on both sides of the inner tube, and the clamping device also includes two clamping plates corresponding to the two openings.

[0012] Furthermore, the clamping device also includes a slide groove and a micro electric cylinder, the slide groove is arranged on both sides of the opening, the micro electric cylinder is vertically arranged in the inner cylinder, the clamping plate is slidably installed in the slide groove, a pulley is provided in the middle of the slide groove, the clamping plate is connected to the push rod of the micro electric cylinder after passing through the pulley through a pull rope, and a spring is sleeved on the pull rope between the clamping plate and the pulley.

[0013] Furthermore, it also includes a pipe boot, which is a conical sleeve structure. When the drainage body is inserted, the pipe boot is sleeved on the heads of the inner tube and the outer tube, so that the gap between the two can be wrapped inside.

[0014] Furthermore, an external wire is provided at the tail end of the inner cylinder, and the external wire is connected to the micro electric cylinder. An energizing clamp is provided at one end of the vibration device connected to the inner cylinder. When the vibration device is installed on the inner cylinder, the energizing clamp contacts the external wire.

[0015] The beneficial effects of the present invention are:

[0016] 1. The cylindrical plate core tubular structure of the drainage body provides a large space for air extraction and drainage, which can improve work efficiency and shorten the soft foundation reinforcement time;

[0017] 2. The insertion device matched with the drainage body utilizes the structural form of the combination of inner and outer cylinders, which can not only protect the drainage body during insertion, but also stably detach from the drainage body during the withdrawal process, thus avoiding the back-carrying phenomenon of the traditional bayonet structure;

[0018] 3. The insertion device matched with the drainage body uses a structural form that combines an inner tube and an outer tube. The plastic drainage body does not come into direct contact with the silt soil during the insertion process, thus avoiding the smearing effect of the filter membrane clogging during the insertion process of the traditional drainage body and improving the drainage effect of the filter membrane;

[0019] 4. The tubular structure of the plastic drainage body greatly enhances its bending resistance, greatly avoiding the bending, twisting and folding of traditional plastic drainage boards, and enhancing the exhaust and drainage effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a top view of the plastic drainage body.

[0021] Figure 2 This is the front view of the plastic drainage body.

[0022] Figure 3 It is a schematic diagram of the structure of the insertion device.

[0023] Figure 4 It is a schematic diagram of the structure of the clamping device.

[0024] Figure 5 It is a schematic diagram of the pipe shoe structure.

[0025] Marked in the figure are, 1-plate core, 2-filter membrane, 3-inner cylinder, 4-outer cylinder, 5-vibration device, 6-cone head, 7-clamping device, 8-tube shoe, 11-groove tooth, 12-filter hole, 13-annular clamping strip, 31-opening, 32-external wire, 51-power clamping rod, 71-clamping plate, 72-slideway, 73-micro electric cylinder, 74-pulley, 75-pull rope, 76-spring. DETAILED DESCRIPTION

[0026] The present invention is further described below in conjunction with the accompanying drawings.

[0027] like Figure 1 , Figure 2 As shown, the plastic drainage body of the present invention includes a tubular core 1 and a filter membrane 2 wrapped around the outside of the core 1, the outer surface of the core 1 is evenly distributed with groove teeth 11, filter holes 12 are arranged between adjacent groove teeth 11, and the inner surface of the core 1 is provided with an annular clip 13, the annular clip 13 is coaxial with the core 1, and is evenly spaced along the axis of the core 1.

[0028] Compared with traditional flat rectangular drainage boards, the tubular structure of the present application can provide a larger space for vacuum drainage, which can improve work efficiency, shorten the soft foundation reinforcement time, and the bending resistance of the tubular structure of the plastic drainage body is greatly enhanced, which greatly avoids the bending, twisting and folding of traditional plastic drainage boards and enhances the exhaust and drainage effect.

[0029] The function of the groove teeth 11 on the outer surface of the board core 1 is to support the filter membrane and provide a drainage channel. In order to improve its effect, the groove teeth 11 are evenly arranged on the surface of the board core 1 in an axially symmetrical manner. The number of groove teeth 11 should be no less than 30, and the height of the groove teeth is generally 0.5cm-1cm.

[0030] The filter holes 12 are arranged between adjacent groove teeth 11 to form a gap between the filter holes 12 and the soil, so as to form a vacuum during the drainage process and improve the drainage effect. The filter holes 12 are evenly spaced in layers on the plate core 1, and the number of each layer is equal to the number of groove teeth 11. The aperture of the filter holes 12 is generally 0.5 cm-1 cm.

[0031] The annular clip 13 inside the board core 1 is mainly used to match the insertion device. During the insertion process, the insertion device drives the entire plastic drainage body downward through the annular clip 13, and during the withdrawal process, it is separated from the annular clip 13, thereby completing the insertion of the plastic drainage body. To ensure the stability of the clamping, the height of the annular clip 13 is 0.2-0.3cm, and the distance between adjacent annular clips 13 is 1cm-2cm.

[0032] Insertion device for plastic drainage bodies, such as Figure 3 As shown, it comprises an inner tube 3 and an outer tube 4 which are sleeved with each other, the outer diameter of the inner tube 3 is smaller than the inner diameter of the core 1, and the inner diameter of the outer tube 4 is larger than the outer diameter of the core 1, so that the core 1 can be just placed in the annular cavity formed by the inner tube 3 and the outer tube 4. A vibration device 5 is provided at the tail end of the inner tube 3 and the outer tube 4, a cone head 6 is provided at the front end of the inner tube 3, and an opening 31 is provided on the tube wall near the cone head 6, a clamping device 7 is provided in the inner tube 3, and the clamping device 7 comprises a clamping plate 71 which can pass through and retract into the inner tube 3 from the opening 31, and when the clamping plate 71 passes through the opening 31, it can be clamped on the annular clamping strip 13 in the core 1.

[0033] The use process of the plug-in device includes the following stages:

[0034] Installation stage: first, put the plastic drain body on the tail end of the inner cylinder 3. After it is completely put on, use the clamping device 7 to extend the clamping plate 71 and clamp it on the annular clamping strip 13 of the plastic drain body. Then put the outer cylinder 4 on the outside of the plastic drain, install the cone head 6 on the front end of the inner cylinder 3, and finally install the vibration device 5 on the tail ends of the inner cylinder 3 and the outer cylinder 4. The vibration device 5 is connected with other external devices and can fix or limit the inner cylinder 3, the outer cylinder 4 and the plastic drain body at the same time;

[0035] Insertion stage: the entire device is moved to a predetermined position by an external device, with the cone head facing downward and the vibration device 5 on top. After the vibration device 5 is started, the entire insertion device is driven by the external device to slowly move into the soil. Under the action of the cone head 6 and the vibration device 5, it can be easily inserted into the soft foundation. After reaching the predetermined depth, it stops moving forward and turns off the vibration device 5, completing the insertion of the plastic drainage body;

[0036] Withdrawal stage: The purpose of the withdrawal stage is to extract the insertion device from the soft foundation and avoid taking out the plastic drainage body. First, remove the vibration device 5 and the outer tube 4 in turn, and then control the clamping device 7 to retract the clamping plate 71 into the inner tube 3, and then take out the inner tube 3. The plastic drainage body is left in the soil, and finally return to the installation stage to insert the next plastic drainage body.

[0037] In order to facilitate the loading and unloading of the vibration device 5 and the inner tube 3 and the outer tube 4, the inner tube 3 and the outer tube 4 are connected to the vibration device 5 by threaded connection. Due to the different geological conditions of each soft base, the length of the plastic drainage body is required to be different. Therefore, in order to adapt to the plastic drainage body, the inner tube 3 and the outer tube 4 are set to a structure that can increase or decrease the length by splicing multiple sections of the tube body, and each section of the tube body is connected by threads.

[0038] Since there is always a gap between the inner tube 3 and the outer tube 4, during the insertion process, soil will enter the outer tube 4 from the gap between the inner tube 3 and the outer tube 4 heads. Therefore, a clamping device 7 is required to overcome the resistance of the soil and drive the plastic drainage body to move downward. In order to make the force more balanced, the opening 31 includes two, which are symmetrically arranged on both sides of the inner tube 3. The clamping device 7 also includes two clamping plates 71 corresponding to the two openings 31. In actual use, the filter membrane at the head of the plastic drainage body can be slightly wrapped around the plate core 1 and folded into the gap between the circular plate core 1 and the inner tube 3 to prevent the plastic drainage body from being stuck in the soil between the end groove teeth 11 during the insertion process.

[0039] The clamping device 7 can be set in various forms, as long as it is a connecting rod mechanism or a hydraulic or electric push rod that can realize the extension and retraction of the clamping plate 71. The clamping device 7 used in the present application also includes a slide groove 72 and a micro electric cylinder 73. Figure 4 As shown, the slide groove 72 is arranged on both sides of the opening 31, the micro electric cylinder 73 is vertically arranged in the inner tube 3, the card plate 71 is slidably installed in the slide groove 72, and a pulley 74 is provided in the middle of the slide groove 72. The card plate 71 is connected to the push rod of the micro electric cylinder 73 after passing through the pulley 74 through a pull rope 75, and a spring 76 is sleeved on the pull rope 75 between the card plate 71 and the pulley 74.

[0040] The working process of the clamping device is: when it is necessary to insert the plastic drainage body, first start the micro-electric cylinder 73 to pull the pull rope 75, and the clamping plate 71 will move to the middle of the slide groove 72 under the left and right of the pulley 74 until the clamping plate 71 is completely retracted into the inner tube 3; when the plastic drainage body is put into place, the micro-electric cylinder 73 moves in the opposite direction, and the clamping plate 71 will move away from the middle of the slide groove 72 under the action of the spring 76, until it extends out of the inner tube 3 and contacts the inner wall of the board core 1, and is clamped between two adjacent annular clamping strips 13, thereby clamping the plastic drainage body; when it is necessary to withdraw the insertion device, just pull the pull rope again to retract the clamping plate 71 into the inner tube 3, and the inner tube 3 can be withdrawn smoothly.

[0041] In order to further improve the working stability of the insertion device, it is better to add a pipe shoe 8, such as Figure 5 As shown, the pipe boot 8 is a conical sleeve structure. When inserting the drainage body, the pipe boot 8 is put on the head of the inner tube 3 and the outer tube 4, and the gap between the two can be wrapped inside, so as to prevent mud from entering during the insertion process and blocking the gap between the plastic drainage body and the inner tube 3 and the outer tube 4, so that the inner tube 3 and the outer tube 4 will not be blocked when withdrawing. Since the pipe boot 8 is disposable, it can be made of degradable plastic.

[0042] In order to facilitate the power supply to the micro electric cylinder 73, an external wire 32 is provided at the tail end of the inner cylinder 3, and the external wire 32 is connected to the micro electric cylinder 73. An electric clamp 51 is provided at one end of the vibration device 5 connected to the inner cylinder 3. When the vibration device 5 is installed on the inner cylinder 3, the electric clamp 51 contacts the external wire 32, and the electric clamp 51 can be directly connected to the wire of the vibration device 5.

[0043] The tubular structure of the plastic drainage body of the present application provides a larger space for vacuum drainage, which can improve work efficiency and shorten the time for soft foundation reinforcement. The bending resistance of the plastic drainage body with a tubular structure is greatly enhanced, which greatly avoids the bending, twisting and folding of traditional plastic drainage boards and enhances the exhaust and drainage effect. The insertion device matched with the drainage body utilizes a structural form that combines an inner tube and an outer tube, which can not only protect the drainage body during insertion and avoid the smearing effect of filter membrane clogging during the insertion process of traditional drainage boards, but also can stably detach from the drainage body during the withdrawal process and avoid the back-carrying phenomenon of the traditional bayonet structure. It has good practicality and application prospects.

Claims

1. A plastic drainage body insertion device, comprising a plastic drainage body matched therewith, the plastic drainage body comprising a tubular plate core (1) and a filter membrane (2) wrapped around the outside of the plate core (1), the outer surface of the plate core (1) is evenly distributed with groove teeth (11), and filter holes (12) are provided between adjacent groove teeth (11), the inner surface of the plate core (1) is provided with an annular clamping strip (13), the annular clamping strip (13) is coaxial with the plate core (1), and is evenly spaced along the axis of the plate core (1), and is characterized in that: The invention comprises an inner tube (3) and an outer tube (4) which are sleeved together, wherein the plate core (1) can be placed in an annular cavity formed by the inner tube (3) and the outer tube (4), the tail ends of the inner tube (3) and the outer tube (4) are provided with a vibration device (5), the front end of the inner tube (3) is provided with a cone head (6), and an opening (31) is provided on the tube wall near the cone head (6), and the inner tube (3) is provided with a clamping device (7), wherein the clamping device (7) comprises a clamping plate (7) which can pass through the opening (31) and be retracted into the inner tube (3). 71), when the clamping plate (71) passes through the opening (31), it can be clamped on the annular clamping strip (13) in the plate core (1), the inner tube (3) and the outer tube (4) are connected to the vibration device (5) through a threaded structure, and the inner tube (3) and the outer tube (4) can be connected through a multi-stage threaded connection to increase the length of the tube body, the opening (31) includes two, and is symmetrically arranged on both sides of the inner tube (3), and the clamping device (7) also includes two clamping plates (71) corresponding to the two openings (31).

2. The plastic drainage body insertion device according to claim 1, characterized in that: The groove teeth (11) are evenly spaced and arranged along the outer surface of the board core (1) in an axisymmetric manner, the number of the groove teeth (11) is not less than 30, and the height of the groove teeth (11) is 0.5 cm-1 cm.

3. The plastic drainage body insertion device according to claim 1, characterized in that: The filter holes (12) are evenly spaced in layers on the plate core (1), the number of each layer is equal to the number of groove teeth (11), and the diameter of the filter holes (12) is 0.5 cm-1 cm.

4. The plastic drainage body insertion device according to claim 1, characterized in that: The height of the annular clip strip (13) is 0.2-0.3 cm, and the spacing between adjacent annular clip strips (13) is 1 cm-2 cm.

5. The plastic drainage body insertion device according to claim 1, characterized in that: The clamping device (7) further comprises a slide groove (72) and a micro electric cylinder (73), wherein the slide groove (72) is arranged on both sides of the opening (31), the micro electric cylinder (73) is vertically arranged in the inner tube (3), the clamping plate (71) is slidably installed in the slide groove (72), a pulley (74) is arranged in the middle of the slide groove (72), the clamping plate (71) is connected to the push rod of the micro electric cylinder (73) after passing through the pulley (74) via a pull rope (75), and a spring (76) is sleeved on the pull rope (75) between the clamping plate (71) and the pulley (74).

6. The plastic drainage body insertion device according to claim 5, characterized in that: It also comprises a pipe boot (8) which is a conical sleeve structure. When the drainage body is inserted, the pipe boot (8) is sleeved on the heads of the inner tube (3) and the outer tube (4), so that the gap between the two can be wrapped inside.

7. The plastic drainage body insertion device according to claim 5, characterized in that: The tail end of the inner cylinder (3) is provided with an external wire (32), which is connected to the micro electric cylinder (73). The end of the vibration device (5) connected to the inner cylinder (3) is provided with an energizing clamp (51), and when the vibration device (5) is installed on the inner cylinder (3), the energizing clamp (51) is in contact with the external wire (32).

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