A double-layer vacuum preloading reinforced soft soil foundation structure

Abstract

The present application discloses a double-layer vacuum preloading reinforced soft soil foundation structure, belonging to the technical field of silt treatment. It includes a first filter plate, a second filter plate and a drain pipe. An installation seat is fixedly arranged on the drain pipe. A plugging hole for plugging the first filter plate is formed in the installation seat. The plugging hole is communicated with the drain pipe, and the first filter plate is plugged into the drain pipe. A connecting plate is fixedly installed on the first filter plate. A slot for plugging the connecting plate is formed in the installation seat. A first limiting component for limiting the connecting plate is arranged in the installation seat. The present application has the effect of facilitating the connection between the filter plate and the bottom drain pipe by the staff, thereby reducing the working intensity of the staff.

Description

Technical Field

[0001] This application relates to the technical field of sludge treatment, and particularly to a double-layer vacuum preloading soft soil foundation reinforcement structure. Background Technique

[0002] The vacuum preloading method is to insert vertical drainage channels into the soft foundation to be reinforced, then lay a layer of sand cushion on the ground, and then cover it with an airtight film. Under the action of a vacuum pump or other vacuum means under the film to create a negative pressure, under the action of the negative pressure, the pore water gradually seeps into the vertical drainage channels to achieve the effect of soil drainage consolidation and strength increase. As a new generation of soft foundation reinforcement method, the vacuum preloading method is widely used in engineering construction such as ports, docks, airports, industrial and civil buildings due to its advantages of short construction period, construction safety, pollution-free environment, and low cost.

[0003] In the related technology, the double-layer vacuum preloading soft soil foundation reinforcement structure includes a yard for stacking sludge, a cofferdam is arranged on the yard, a bottom drainage pipe network system is arranged on the yard inside the cofferdam, a lower filter layer is covered on the bottom drainage pipe network system, a sludge layer is stacked on the lower filter layer, several filter plates are inserted into the sludge layer, the filter plates pass through the lower filter layer and are connected to the bottom drainage pipe network system, the filter plates and the bottom drainage pipes are connected by tie straps, the bottom drainage pipe network system is connected to a lower vacuum pump, the lower vacuum pump is located outside the cofferdam, and an upper sealing film is laid on the sludge layer.

[0004] Regarding the above related technology, the inventor believes that the staff connects the filter plates and the bottom drainage pipes through tie straps, which increases the working intensity of the staff. Summary of the Invention

[0005] In order to facilitate the staff to connect the filter plates and the bottom drainage pipes, thereby reducing the working intensity of the staff, this application provides a double-layer vacuum preloading soft soil foundation reinforcement structure.

[0006] A double-layer vacuum preloading soft soil foundation reinforcement structure provided by this application adopts the following technical solution:

[0007] A double-layer vacuum preloading soft soil foundation reinforcement structure includes a first filter plate, a second filter plate and a drainage pipe. An installation seat is fixedly arranged on the drainage pipe. A plug hole for inserting the first filter plate is opened in the installation seat. The plug hole is communicated with the drainage pipe, and the first filter plate is inserted into the drainage pipe; a connecting plate is fixedly installed on the first filter plate. A slot for inserting the connecting plate is opened on the installation seat, and a first limiting component for limiting the connecting plate is arranged in the installation seat.

[0008] By adopting the above technical solution, when the staff needs to connect the first filter plate to the drain pipe, first move the first filter plate and insert it into the insertion hole on the mounting seat. At the same time, the first filter plate can drive the connecting plate to be inserted into the slot on the mounting seat. Subsequently, the connecting plate can be limited under the action of the first limiting component, so that it is convenient for the staff to connect the first filter plate to the drain pipe, reducing the working intensity of the staff.

[0009] Preferably, the first limiting component includes a limiting plate, a pushing block and a first spring. A first sliding groove is formed in the inner wall of the slot. The limiting plate slides in the first sliding groove. A limiting groove for inserting the limiting plate is formed on the connecting plate. A first inclined surface is provided on the limiting plate. The pushing block is fixedly arranged on the limiting plate. Two ends of the first spring are respectively fixedly connected to the pushing block and the inner wall of the first sliding groove.

[0010] By adopting the above technical solution, during the process that the first filter plate drives the connecting plate to be inserted into the slot on the mounting seat, the connecting plate can push the limiting plate to move against the elastic force of the first spring through the first inclined surface on the limiting plate. Subsequently, when the connecting plate moves to a position corresponding to the limiting plate and the limiting groove, the elastic force of the first spring can push the limiting plate to be inserted into the limiting groove, so as to reduce the possibility of the connecting plate separating from the mounting seat.

[0011] Preferably, a pressing plate and a second spring are arranged in the slot. The pressing plate slides in the slot. The pressing plate can abut against the connecting plate. Two ends of the second spring are respectively fixedly connected to the pressing plate and the inner wall of the slot.

[0012] By adopting the above technical solution, during the process that the first filter plate drives the connecting plate to be inserted into the slot on the mounting seat, the connecting plate can press the pressing plate to move against the elastic force of the second spring. After the connecting plate is limited, the elastic force of the second spring can push the pressing plate to abut tightly against the connecting plate, so as to reduce the shaking intensity of the first filter plate, and further improve the connection tightness between the connecting plate and the mounting seat.

[0013] Preferably, a roller is arranged on the mounting seat. A connecting block is fixedly arranged on the mounting seat. The rotating shaft on the roller is rotatably connected to the connecting block.

[0014] A support rod is fixedly arranged on the roller. One end of the support rod far away from the roller can abut against the first filter plate. A torsion spring is sleeved on the rotating shaft of the roller. Two ends of the torsion spring are respectively fixedly connected to the connecting block and the roller. A gear is slidably arranged on the roller. A second limiting component for limiting the gear is arranged on the mounting seat.

[0015] By adopting the above technical solution, before the connecting plate on the first filter plate is connected to the mounting seat, the support rod is located at a position far from the first filter plate. At this time, the gear is limited by the second limiting component, reducing the possibility of the roller rotating; later, when the connecting plate pushes the limiting plate to move, the limiting plate can release the limitation of the second limiting component on the gear. At this time, the elastic force of the torsion spring can drive the roller to rotate, and the roller can drive the support rod to rotate in the direction close to the first filter plate and finally abut against the first filter plate, so as to support the first filter plate; later, when the limiting plate is inserted into the limiting groove on the connecting plate, the second limiting component can limit the gear again, thereby reducing the possibility of the support rod rotating easily in the direction away from the first filter plate.

[0016] Preferably, the second limiting component includes a plugging rod and an abutting plate. A storage groove is formed in the mounting seat, and the storage groove communicates with the first sliding groove;

[0017] The plugging rod is fixedly arranged on the abutting plate. The abutting plate slides in the storage groove, and the plugging rod penetrates through the inner wall of the storage groove. The plugging rod can be plugged into the tooth groove on the gear; a second inclined surface is arranged on one side of the limiting plate close to the abutting plate, and the limiting plate can be abutted and matched with the abutting plate. A resetting part for resetting the abutting plate is arranged in the storage groove.

[0018] By adopting the above technical solution, when the support rod is located at a position far from the first filter plate, at this time, the plugging rod is plugged into the tooth groove on the gear. Later, when the connecting plate pushes the limiting plate to move in the direction close to the abutting plate, the limiting plate can push the abutting plate to move away from the gear through the second inclined surface. The movement of the abutting plate drives the movement of the plugging rod. Later, when the plugging rod moves to a position away from the gear, the limitation of the plugging rod on the gear can be released, thereby reducing the difficulty of the gear and the roller rotating; subsequently, when the limiting plate is inserted into the limiting groove, at this time, the abutting plate can move in the direction close to the gear under the action of the resetting part, and the abutting plate can drive the plugging rod to be plugged into the tooth groove on the gear again, so as to limit the gear again.

[0019] Preferably, a guiding block is fixedly arranged on the inner wall of the gear, and a guiding groove for the guiding block to slide is formed on the roller.

[0020] By adopting the above technical solution, the arranged guiding block can slide in the guiding groove. At the same time, when the gear is limited, the gear can make the roller limited and unable to rotate through the cooperation between the guiding block and the guiding groove; when the staff needs to disassemble the first filter plate, first move the gear in the direction away from the plugging rod, so as to facilitate the staff to rotate the support rod in the direction away from the first filter plate, and further facilitate the staff to disassemble the first filter plate.

[0021] Preferably, a positioning rod is arranged in the guiding groove. One end of the positioning rod is rotatably arranged on the inner wall of the guiding groove, and the other end of the positioning rod can abut against the guiding block.

[0022] By adopting the above technical solution, the staff first moves the gear in the direction close to the inserting rod. When the gear moves to the position where the inserting rod corresponds to the tooth groove on the gear, the staff can rotate the positioning rod and abut the positioning rod against the gear, so as to reduce the possibility of the gear sliding randomly, and further reduce the possibility of the gear disengaging from the inserting rod.

[0023] Preferably, a fixing plate is fixedly arranged on the first filter plate, and a supporting plate is slidably arranged on the fixing plate. The supporting plate can be abutted and matched with the second filter plate; a pushing component for pushing the supporting plate to move is arranged on the first filter plate.

[0024] By adopting the above technical solution, during the process of the supporting rod rotating towards the first filter plate, the pushing component can drive the supporting plate to move towards the second filter plate. When the supporting rod abuts against the first filter plate, the supporting plate can be abutted and matched with the second filter plate, so as to further increase the friction force between the second filter plate and the first filter plate and reduce the possibility of relative sliding between the second filter plate and the first filter plate.

[0025] Preferably, the pushing component includes a push rod and a connecting rod. The push rod is slidably arranged on the first filter plate, and one end of the push rod close to the supporting rod can be abutted and matched with the supporting rod; two ends of the connecting rod are respectively hinged to the push rod and the supporting plate.

[0026] By adopting the above technical solution, during the process of the supporting rod rotating towards the first filter plate, the supporting rod can push the push rod to move. The movement of the push rod can drive the connecting rod to rotate, and the rotation of the connecting rod drives the supporting plate to move, so as to reduce the difficulty of the supporting plate moving.

[0027] Preferably, a third spring and an abutting block are arranged on one side of the supporting plate close to the second filter plate. Two ends of the third spring are respectively fixedly connected to the abutting block and the supporting plate; the abutting block can abut against the second filter plate.

[0028] By adopting the above technical solution, when the supporting plate moves towards the second filter plate, the abutting block first contacts the second filter plate. Subsequently, when the supporting plate continues to move, the third spring can be compressed. The elastic force of the third spring can push the abutting block to abut tightly against the second filter plate, so as to further increase the friction force between the second filter plate and the first filter plate.

[0029] In summary, the present application includes at least one of the following beneficial technical effects:

[0030] 1. When the staff needs to connect the first filter plate to the drain pipe, first move the first filter plate and insert it into the insertion hole on the mounting seat. At the same time, the first filter plate can drive the connecting plate to be inserted into the slot on the mounting seat. Subsequently, the connecting plate can be limited under the action of the first limiting component, so that it is convenient for the staff to connect the first filter plate to the drain pipe, reducing the working intensity of the staff;

[0031] 2. During the process of the first filter plate driving the connecting plate to be inserted into the slot on the mounting seat, the connecting plate can push the limiting plate to move against the elastic force of the first spring through the first inclined surface on the limiting plate. Subsequently, when the connecting plate moves to the position where the limiting plate corresponds to the limiting groove, the elastic force of the first spring can push the limiting plate to be inserted into the limiting groove, thereby reducing the possibility of the connecting plate separating from the mounting seat;

[0032] 3. During the process of the first filter plate driving the connecting plate to be inserted into the slot on the mounting seat, the connecting plate can press the abutting plate to move against the elastic force of the second spring. After that, when the connecting plate is limited, the elastic force of the second spring can push the abutting plate to abut against the connecting plate, thereby reducing the shaking intensity of the first filter plate and further improving the connection tightness between the connecting plate and the mounting seat. Description of the Drawings

[0033] Figure 1 is the overall structural schematic diagram of a double-layer vacuum preloading reinforced soft soil foundation structure;

[0034] Figure 2 is the structural schematic diagram highlighting the abutting plate in the embodiment of the present application;

[0035] Figure 3 is Figure 2 the enlarged view of part A in

[0036] Figure 4 is the structural schematic diagram highlighting the positioning rod in the embodiment of the present application;

[0037] Figure 5 is the structural schematic diagram highlighting the abutting block in the embodiment of the present application.

[0038] Description of the Reference Numerals:

[0039] 1. First filter plate; 2. Second filter plate; 3. Drain pipe; 4. Mounting seat; 5. Insertion hole; 6. Connecting plate; 7. Slot; 8. First limiting component; 9. Limiting plate; 10. Pushing block; 11. First spring; 12. First chute; 13. Limiting groove; 14. First inclined surface; 15. Tightening plate; 16. Second spring; 17. Roller; 18. Connecting block; 19. Support rod; 20. Torsion spring; 21. Gear; 22. Second limiting component; 23. Insertion rod; 24. Contact plate; 25. Storage groove; 26. Second inclined surface; 27. Guide block; 28. Guide groove; 29. Positioning rod; 30. Fixed plate; 31. Support plate; 32. Pushing component; 33. Push rod; 34. Link rod; 35. Third spring; 36. Contact block. Detailed implementation mode

[0040] The following is a further detailed description of the present application in conjunction with the attached Figures 1-5 drawings.

[0041] An embodiment of the present application discloses a double - layer vacuum pre - pressing reinforced soft soil foundation structure. As Figure 1 shown in Figure 2 figures, it includes a first filter plate 1, a second filter plate 2 and a drain pipe 3. A mounting seat 4 is fixedly connected to the drain pipe 3. An insertion hole 5 for inserting the first filter plate 1 is opened in the mounting seat 4. The insertion hole 5 extends in the vertical direction and is communicated with the drain pipe 3. The first filter plate 1 is inserted into the drain pipe 3. A connecting plate 6 is sleeved and fixed on the first filter plate 1. The connecting plate 6 is a square ring plate. A slot 7 for inserting the connecting plate 6 is opened on the mounting seat 4. The slot 7 is a square ring groove and is communicated with the insertion hole 5. A first limiting component 8 for limiting the connecting plate 6 is arranged in the mounting seat 4.

[0042] As Figure 1 shown in Figure 2 figures, when the staff needs to connect the first filter plate 1 with the drain pipe 3, first move the first filter plate 1 to be inserted into the insertion hole 5 on the mounting seat 4. At the same time, the first filter plate 1 can drive the connecting plate 6 to be inserted into the slot 7 on the mounting seat 4. Subsequently, the connecting plate 6 can be limited under the action of the first limiting component 8, so that it is convenient for the staff to connect the first filter plate 1 with the drain pipe 3, reducing the work intensity of the staff.

[0043] As Figure 2 shown in Figure 3As shown, there are four groups of first limiting components 8. The first limiting component 8 includes a limiting plate 9, a pushing block 10 and a first spring 11. First sliding grooves 12 are formed on the inner walls of the four sides of the slot 7. The first sliding grooves 12 extend in the horizontal direction. The four groups of first limiting components 8 are respectively arranged in the four first sliding grooves 12. The limiting plate 9 is in the shape of a cuboid and slides horizontally in the first sliding groove 12. A limiting groove 13 for inserting the limiting plate 9 is formed on the connecting plate 6. A first inclined surface 14 is provided at one end of the limiting plate 9 close to the connecting plate 6. The pushing block 10 is in the shape of a cuboid and is welded and fixed to the top side wall of the limiting plate 9. The first spring 11 is arranged horizontally. The two ends of the first spring 11 are respectively welded and fixed to the pushing block 10 and the inner wall of the first sliding groove 12 far from the connecting plate 6. A pulling block is welded and fixed to the top side wall of the pushing block 10. The pulling block is in the shape of a cuboid. A through hole is formed on the top side wall of the mounting seat 4. The through hole is communicated with the first sliding groove 12. The pulling block can slide in the through hole.

[0044] As Figure 2 and Figure 3 shown, during the process that the first filter plate 1 drives the connecting plate 6 to be inserted into the slot 7 on the mounting seat 4, the connecting plate 6 can push the limiting plate 9 to move against the elastic force of the first spring 11 through the first inclined surface 14 on the limiting plate 9. Subsequently, when the connecting plate 6 moves to the position corresponding to the limiting plate 9 and the limiting groove 13, the elastic force of the first spring 11 can push the limiting plate 9 to be inserted into the limiting groove 13, so as to reduce the possibility of the separation between the connecting plate 6 and the mounting seat 4. When the staff needs to release the limit of the connecting plate 6, the pulling block can be pulled in the direction away from the connecting plate 6. When the pulling block drives the limiting plate 9 to move to a position far from the connecting plate 6, the limit of the limiting plate 9 on the connecting plate 6 can be released.

[0045] As Figure 2 shown, a pressing plate 15 and a second spring 16 are arranged in the slot 7. The pressing plate 15 is a square ring plate and can slide vertically in the slot 7. The pressing plate 15 can abut against the connecting plate 6. A plurality of second springs 16 are arranged and are all arranged vertically. The upper and lower ends of the second spring 16 are respectively welded and fixed to the pressing plate 15 and the inner bottom wall of the slot 7.

[0046] As Figure 2 shown, during the process that the first filter plate 1 drives the connecting plate 6 to be inserted into the slot 7 on the mounting seat 4, the connecting plate 6 can press the pressing plate 15 to move against the elastic force of the second spring 16. After the connecting plate 6 is limited, the elastic force of the second spring 16 can push the pressing plate 15 to abut tightly against the connecting plate 6, so as to reduce the shaking intensity of the first filter plate 1 and further improve the connection tightness between the connecting plate 6 and the mounting seat 4.

[0047] As Figure 3 and Figure 4 shown, in combination withFigure 2 Around the first filter plate 1 on the mounting base 4, rollers 17 are provided. At both ends of the rotating shaft of the roller 17, connecting blocks 18 are rotatably connected, and the connecting blocks 18 are welded and fixed to the top side wall of the mounting base 4; on the roller 17, a support rod 19 is provided. The bottom end of the support rod 19 is sleeved and fixed on the roller 17, and the top end of the support rod 19 can abut against the first filter plate 1. At both ends of the rotating shaft of the roller 17, torsion springs 20 are sleeved. The two ends of the torsion spring 20 are respectively fixedly connected to the connecting block 18 and the roller 17; on the roller 17, a gear 21 is slidably arranged along its axial direction. On the inner wall of the gear 21, two guide blocks 27 are welded and fixed. On the roller 17, two guide grooves 28 are opened. The guide grooves 28 extend along the axial direction of the roller 17, and the two guide blocks 27 are respectively slid in the two guide grooves 28; on the mounting base 4, a second limiting component 22 for limiting the gear 21 is provided.

[0048] As Figure 3 and Figure 4 shown, in combination with Figure 2 , before the connecting plate 6 on the first filter plate 1 is connected to the mounting base 4, the support rod 19 is located at a position far from the first filter plate 1. At this time, the gear 21 is limited under the action of the second limiting component 22, reducing the possibility of the roller 17 rotating; later, when the connecting plate 6 pushes the limiting plate 9 to move, the limiting plate 9 can release the limitation of the second limiting component 22 on the gear 21. At this time, the elastic force of the torsion spring 20 can drive the roller 17 to rotate. The roller 17 can drive the support rod 19 to rotate in the direction close to the first filter plate 1 and finally abut against the first filter plate 1, so as to support the first filter plate 1; later, when the limiting plate 9 is inserted into the limiting groove 13 on the connecting plate 6, the second limiting component 22 can re-limit the gear 21, thereby reducing the possibility of the support rod 19 rotating easily in the direction away from the first filter plate 1.

[0049] As Figure 3 and Figure 4 shown, the arranged guide blocks 27 can slide in the guide grooves 28. At the same time, when the gear 21 is limited, the gear 21 can make the roller 17 limited and unable to rotate through the cooperation between the guide blocks 27 and the guide grooves 28; when the staff needs to disassemble the first filter plate 1, first move the gear 21 in the direction away from the insertion rod 23, so as to facilitate the staff to rotate the support rod 19 in the direction away from the first filter plate 1, and then facilitate the staff to disassemble the first filter plate 1.

[0050] As Figure 2 and Figure 3As shown, the second limiting component 22 includes a plugging rod 23 and an abutting plate 24. A storage groove 25 is formed in the mounting seat 4, and the storage groove 25 communicates with the first sliding groove 12. The abutting plate 24 is in a cuboid shape. The plugging rod 23 is welded and fixed to the top side wall of the abutting plate 24. The abutting plate 24 can slide vertically in the storage groove 25. The plugging rod 23 passes through the top inner wall of the storage groove 25 and extends to the outside of the mounting seat 4. The plugging rod 23 can be plugged into the tooth groove on the gear 21. A second inclined surface 26 is provided on one side of the limiting plate 9 close to the abutting plate 24. The limiting plate 9 can be in abutting cooperation with the abutting plate 24 through the second inclined surface 26. A resetting member for resetting the abutting plate 24 is provided in the storage groove 25. The resetting member is a resetting spring. A plurality of resetting springs are provided and are all vertically arranged. The upper and lower ends of the resetting spring respectively abut against the abutting plate 24 and the bottom inner wall of the storage groove 25.

[0051] As Figure 2 and Figure 3 shown, when the support rod 19 is located at a position far from the first filter plate 1, at this time the plugging rod 23 is plugged into the tooth groove on the gear 21. After that, when the connecting plate 6 pushes the limiting plate 9 to move towards the direction close to the abutting plate 24, the limiting plate 9 can push the abutting plate 24 to move away from the gear 21 through the second inclined surface 26. At this time, the second spring 16 is compressed. The movement of the abutting plate 24 drives the movement of the plugging rod 23. After that, when the plugging rod 23 moves to a position far from the gear 21, the limitation of the plugging rod 23 on the gear 21 can be released, thereby reducing the difficulty of the rotation of the gear 21 and the roller 17. Subsequently, when the limiting plate 9 is plugged into the limiting groove 13, at this time the elastic force of the second spring 16 can push the abutting plate 24 to move towards the direction close to the gear 21, and the abutting plate 24 can drive the plugging rod 23 to be plugged into the tooth groove on the gear 21 again, so as to be able to limit the gear 21 again.

[0052] As Figure 3 and Figure 4 shown, a positioning rod 29 is arranged in one of the guiding grooves 28. One end of the positioning rod 29 is sleeved and fixed with a rotating shaft. The two ends of the rotating shaft are respectively rotatably connected to the opposite inner walls of the two ends of the guiding groove 28. The other end of the positioning rod 29 can abut against the guiding block 27. First, the staff moves the gear 21 towards the direction close to the plugging rod 23. When the gear 21 moves to a position corresponding to the tooth groove on the plugging rod 23, the staff can rotate the positioning rod 29 and abut the positioning rod 29 on the gear 21, so as to be able to reduce the possibility of the gear 21 sliding randomly, and further reduce the possibility of the gear 21 being separated from the plugging rod 23.

[0053] As Figure 2 and Figure 5As shown, two fixing plates 30 are welded and fixed on the peripheral side walls of the first filter plate 1. The fixing plates 30 are rectangular parallelepipeds. A support plate 31 slides horizontally between the two fixing plates 30. The support plate 31 is a rectangular parallelepiped. Slide bars are welded and fixed at both opposite ends of the support plate 31. Slide grooves are formed on the opposite inner walls of the two fixing plates 30, and the two slide bars slide in the two slide grooves respectively. On the side of the support plate 31 close to the second filter plate 2, there are a plurality of third springs 35 and an abutting block 36. The third springs 35 are arranged in plurality and are all horizontally arranged. The abutting block 36 is a rectangular parallelepiped. The two ends of the third spring 35 are respectively welded and fixed to the abutting block 36 and the opposite inner wall of the support plate 31. The abutting block 36 can abut against the second filter plate 2. A protection rod is sleeved in the third spring 35. One end of the protection rod is welded and fixed to the abutting block 36, and the other end of the protection rod passes through and slides in the support plate 31. Push components 32 for pushing the support plate 31 to move are arranged on the peripheral side walls of the first filter plate 1.

[0054] As Figure 2 and Figure 5 shown, during the process of the support rod 19 rotating towards the first filter plate 1, it can drive the support plate 31 to move towards the second filter plate 2 through the push component 32. When the support plate 31 moves towards the second filter plate 2, the abutting block 36 first comes into contact with the second filter plate 2. Subsequently, when the support plate 31 continues to move, it can compress the third spring 35. The elastic force of the third spring 35 can push the abutting block 36 to tightly abut against the second filter plate 2, thereby further increasing the frictional force between the second filter plate 2 and the first filter plate 1, and further reducing the possibility of relative sliding between the second filter plate 2 and the first filter plate 1.

[0055] As Figure 2 and Figure 5 shown, the push component 32 includes a push rod 33 and a connecting rod 34. The push rod 33 is a rectangular parallelepiped. Two guide plates are welded and fixed on the side wall of the first filter plate 1 in sequence along the vertical direction. The guide plates are rectangular parallelepipeds. The push rod 33 passes through and is slidably connected to the two guide plates along the vertical direction. A retaining plate is sleeved and fixed on the push rod 33. A push spring is sleeved on the push rod 33. The two ends of the push spring respectively abut against the opposite inner walls of the retaining plate and the upper guide plate. The top end of the support rod 19 is provided with an arc surface, and the support rod 19 can be in abutting cooperation with the bottom end of the support rod 19 through the arc surface. The two ends of the connecting rod 34 are respectively hinged to the push rod 33 and the support plate 31. During the process of the support rod 19 rotating towards the first filter plate 1, the support rod 19 can push the push rod 33 to move through the arc surface. The movement of the push rod 33 can drive the connecting rod 34 to rotate, and the rotation of the connecting rod 34 drives the support plate 31 to move, thereby reducing the difficulty of moving the support plate 31.

[0056] The implementation principle of the embodiment of this application is as follows: When the staff needs to connect the first filter plate 1 to the drain pipe 3, first move the first filter plate 1 and insert it into the insertion hole 5 on the mounting seat 4. At the same time, the first filter plate 1 can drive the connecting plate 6 to be inserted into the slot 7 on the mounting seat 4. Subsequently, the connecting plate 6 can be limited under the action of the first limiting component 8, so that it is convenient for the staff to connect the first filter plate 1 to the drain pipe 3, reducing the working intensity of the staff.

[0057] The above are all the preferred embodiments of this application. Without restricting the protection scope of this application accordingly, therefore: All equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A double-layer vacuum preloading reinforced soft soil foundation structure, comprising a first filter plate (1), a second filter plate (2) and a drain pipe (3), characterized in that: An installation seat (4) is fixedly arranged on the drain pipe (3). An insertion hole (5) for inserting the first filter plate (1) is formed in the installation seat (4). The insertion hole (5) communicates with the drain pipe (3). The first filter plate (1) is inserted into the drain pipe (3). A connecting plate (6) is fixedly installed on the first filter plate (1). A slot (7) for inserting the connecting plate (6) is formed in the installation seat (4). A first limiting component (8) for limiting the connecting plate (6) is arranged in the installation seat (4). The first limiting component (8) includes a limiting plate (9), a pushing block (10) and a first spring (11). A first sliding groove (12) is formed in the inner wall of the slot (7). The limiting plate (9) slides in the first sliding groove (12). A limiting groove (13) for inserting the limiting plate (9) is formed in the connecting plate (6). A first inclined surface (14) is arranged on the limiting plate (9). The pushing block (10) is fixedly arranged on the limiting plate (9). Two ends of the first spring (11) are respectively fixedly connected to the pushing block (10) and the inner wall of the first sliding groove (12).

2. A double-layer vacuum preloading reinforced soft soil foundation structure according to claim 1, characterized in that: A pressing plate (15) and a second spring (16) are arranged in the slot (7). The pressing plate (15) slides in the slot (7). The pressing plate (15) can abut against the connecting plate (6). Two ends of the second spring (16) are respectively fixedly connected to the pressing plate (15) and the inner wall of the slot (7).

3. A double-layer vacuum preloading soft soil foundation reinforcement structure according to claim 1, characterized in that: A roller (17) is arranged on the installation seat (4). A connecting block (18) is fixedly arranged on the installation seat (4). A rotating shaft on the roller (17) is rotatably connected to the connecting block (18). A support rod (19) is fixedly arranged on the roller (17). One end of the support rod (19) far away from the roller (17) can abut against the first filter plate (1). A torsion spring (20) is sleeved on the rotating shaft of the roller (17). Two ends of the torsion spring (20) are respectively fixedly connected to the connecting block (18) and the roller (17). A gear (21) slides on the roller (17). A second limiting component (22) for limiting the gear (21) is arranged on the installation seat (4).

4. A double-layer vacuum preloading reinforced soft soil foundation structure according to claim 3, characterized in that: The second limiting component (22) includes a plugging rod (23) and a abutting plate (24). A storage groove (25) is formed in the installation seat (4). The storage groove (25) communicates with the first sliding groove (12). The plugging rod (23) is fixedly arranged on the abutting plate (24). The abutting plate (24) slides in the storage groove (25), and the plugging rod (23) penetrates through the inner wall of the storage groove (25). The plugging rod (23) can be plugged into the tooth groove on the gear (21). A second inclined surface (26) is arranged on one side of the limiting plate (9) close to the abutting plate (24). The limiting plate (9) can be in abutting fit with the abutting plate (24). A reset member for resetting the abutting plate (24) is arranged in the storage groove (25).

5. A double-layer vacuum preloading soft soil foundation reinforcement structure according to claim 3, characterized in that: A guiding block (27) is fixedly arranged on the inner wall of the gear (21). A guiding groove (28) for the guiding block (27) to slide is formed in the roller (17).

6. A double-layer vacuum preloading soft soil foundation reinforcement structure according to claim 5, characterized in that: A positioning rod (29) is arranged in the guiding groove (28). One end of the positioning rod (29) is rotatably arranged on the inner wall of the guiding groove (28), and the other end of the positioning rod (29) can abut against the guiding block (27).

7. A double-layer vacuum preloading soft soil foundation reinforcement structure according to claim 3, characterized in that: A fixing plate (30) is fixedly arranged on the first filter plate (1). A supporting plate (31) slides on the fixing plate (30). The supporting plate (31) can be in abutting fit with the second filter plate (2). A pushing assembly (32) for pushing the supporting plate (31) to move is arranged on the first filter plate (1).

8. A double-layer vacuum preloading reinforced soft soil foundation structure according to claim 7, characterized in that: The pushing assembly (32) includes a push rod (33) and a connecting rod (34). The push rod (33) slides on the first filter plate (1). One end of the push rod (33) close to the support rod (19) can be in abutting fit with the support rod (19). Two ends of the connecting rod (34) are respectively hinged to the push rod (33) and the supporting plate (31).

9. A double-layer vacuum preloading reinforced soft soil foundation structure according to claim 7, characterized in that: A third spring (35) and an abutting block (36) are arranged on one side of the supporting plate (31) close to the second filter plate (2). Two ends of the third spring (35) are respectively fixedly connected to the abutting block (36) and the supporting plate (31). The abutting block (36) can abut against the second filter plate (2).

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