Sealing and fixing device for drain board

Abstract

The drainage plate sealing and fixing device comprises a shell, a clamping device, a sealing device and a baffle device, an opening used for installing the clamping device is formed in the upper end of the shell, and the clamping device is used for clamping a drainage plate; the baffle device is arranged on the lower portion of the shell, and the upper end of the sealing device is connected with the clamping device. When the lower end of the sealing device abuts against the baffle device, the baffle device is in a closed state. When the drainage plate is pulled, the drainage plate drives the clamping device to move upwards, and meanwhile the clamping device drives the sealing device to move upwards, so that the lower end of the sealing device is separated from the baffle device, and the baffle device is in an open state. The drainage plate drives the clamping device to move upwards, so that the clamping device drives the sealing device to move upwards, the lower end of the sealing device is separated from the baffle device, the baffle device is opened, the drainage plate is fixed in a soil body through the device, and the device has the advantages of being convenient to install, high in construction efficiency, safe and reliable.

Description

Technical Field

[0001] The invention relates to the technical field of drainage board laying, and in particular to a drainage board sealing and fixing device. Background Art

[0002] With the acceleration of urbanization, infrastructure construction plays a vital role in promoting social and economic development, especially in coastal and river-dense areas, where the treatment of soft foundations has become a key factor affecting project quality. Soft foundations pose great challenges to the bearing capacity and stability of the foundation due to their low strength, high compressibility and high water content.

[0003] In order to effectively improve the strength of the foundation, the current main methods used to treat weak foundations are preloading, electroosmosis reinforcement and vacuum preloading. Among them, the mechanism of the vacuum preloading method is to bury drainage boards in the soil, lay sand cushions and sealing membranes on the ground, and use vacuum devices to evacuate air, so that a pressure difference is formed inside and outside the drainage board membrane, the pore water pressure is continuously dissipated, and the effective stress increases accordingly, thereby achieving the effect of strengthening the soil. Vacuum preloading technology is widely used in engineering fields such as ports, docks, roads, bridges, etc. due to its advantages of short construction period, high safety, environmental protection and relatively low cost.

[0004] However, during the construction process, the problem of fixing the drain board has become one of the key factors restricting the effect of vacuum preloading technology. The sleeve of the existing drain board plug-in device is generally a circular sleeve. The holes formed when the board is plugged in are relatively large. When the sleeve is withdrawn, the surrounding soft soil layer cannot quickly fill these spaces, and thus cannot effectively cover the bottom of the drain board. On the other hand, the frictional resistance between the drain board and the soft soil is small, which will cause the drain board to deviate from the predetermined position under the action of the recovery sleeve, and ultimately weaken the expected drainage effect. In addition, the fragility of the drain board material makes it extremely easy to be damaged during the process of the sleeve penetrating into the soil, especially its critical end part. In order to prevent the drain board from accidentally detaching from the soil layer, its end is usually buried deep in the sand layer under the soft soil layer. During construction, the outer membrane of the drain board buried in the sand layer needs to be torn off, and sealing measures are implemented on the bottom of the drain board to prevent the sand layer from acting as an additional drainage path. The existing sealing technology is generally to manually stick waterproof tape on the exposed surface of the drain board. Although this method aims to enhance the effectiveness of the drainage system, the cumbersomeness of membrane tearing and sealing operations has become a limiting factor. In addition, membrane tearing may cause the sand layer to penetrate the drainage system and affect the safety performance of surrounding buildings. This has significantly slowed down the construction progress and safety of the drainage board, thereby affecting the overall work efficiency.

[0005] Therefore, it is necessary to design a drainage board fixing device with quick and safe sealing operation, so as to speed up the construction efficiency and improve the quality and safety of the project. Summary of the invention

[0006] The purpose of the present invention is to provide a drainage board sealing and fixing device that is easy to install, has high construction efficiency, and is stable and safe in order to solve the above problems. The device can quickly fix the drainage board and has the advantages of easy installation, high construction efficiency, and safety and reliability.

[0007] The purpose of the present invention can be achieved by adopting the following technical solutions:

[0008] A drainage board sealing and fixing device comprises an outer shell, a clamping device, a sealing device and a baffle device, wherein the upper end of the outer shell is provided with an opening for installing the clamping device, and the clamping device is used to clamp the drain board; the baffle device is arranged at the lower part of the outer shell, and the upper end of the sealing device is connected to the clamping device; when the lower end of the sealing device abuts against the baffle device, the baffle device is in a closed state; when the drain board is pulled upward, the drain board drives the clamping device to move upward, and at the same time, the clamping device drives the lower end of the sealing device to move upward, so that the lower end of the sealing device and the baffle device are separated from each other and the baffle device is in an open state.

[0009] As a preferred solution, the baffle device includes a baffle hinged to the lower part of the shell, and an elastic member for popping the baffle open.

[0010] As a preferred solution, a groove is formed at the lower portion of the housing, and when the baffle device is in a closed state, the baffle is disposed in the groove.

[0011] As a preferred solution, the baffle is provided in two pieces and is respectively provided on two sides of the lower part of the housing, and the two ends of the elastic member respectively press against the two baffles.

[0012] As a preferred solution, the clamping device includes a fixing rod and a clamp with an oblique guide block or an oblique guide groove arranged in the opening; the clamp is provided on two opposite inner walls of the opening, the oblique guide block and the oblique guide groove are arranged correspondingly, and the guide block can be slidably mounted in the guide groove; the clamp in the opening is used to clamp the drain board, and the drain board is pre-clamped on the clamp, and when the drain board is subjected to an upward pulling force, the oblique guide block slides obliquely upward along the oblique guide groove, so that the clamp gradually clamps the drain board.

[0013] As a preferred solution, the sealing device includes a clamping rod, a second elastic member and a sealing gasket, the upper end of the clamping rod is connected to the clamping device, and the lower end of the clamping rod extends into the lower part of the outer shell; the sealing gasket is sleeved on the clamping rod, and the second elastic member presses the lower end of the clamping rod and the sealing gasket, the second elastic member presses the sealing gasket against the upper end of the clamping rod to seal the gap between the clamping rod and the outer shell, and the second elastic member presses the lower end of the clamping rod against the baffle device.

[0014] As a preferred solution, the baffle is hinged to the lower part of the shell through a pin; and the elastic member is a torsion spring.

[0015] As a preferred solution, the second elastic member is a spring.

[0016] As a preferred solution, the upper end of the clamping rod is connected to the clamping device via a connecting rope.

[0017] As a preferred solution, a sleeve clamping plate for connecting to a plate inserting machine is provided on the outer side wall of the shell, and the sleeve of the plate inserting machine is clamped on the sleeve clamping plate.

[0018] The implementation of the present invention has the following beneficial effects:

[0019] 1. During construction, the device is fixed to the end of the drain board and inserted into the soil together with the drain board. When the plate inserting machine sleeve is retracted, it drives the drain board to move upward, so that the drain board drives the clamping device to move upward, and then the clamping device drives the sealing device to move upward and the lower end of the sealing device moves upward, so that the lower end of the sealing device is separated from the baffle device, and the baffle device is opened under the action of its own elastic force. Finally, the drain board is fixed in the soil through this device, which has the advantages of simple construction, convenience and speed, and greatly improves the construction efficiency.

[0020] 2. The present invention adopts a guiding structure in which an oblique guide groove and an oblique guide block cooperate. When the drain board drives the two clamps to move upward, the two clamps move obliquely upward under the limiting action of the oblique guide groove and the oblique guide block, that is, the two clamps move upward and move toward each other at the same time, so that the two clamps continuously clamp the drain board until the clamps can no longer move, at which time the drain board is stably fixed on the housing.

[0021] 3. When the drain plate is not subjected to upward pulling force, under the action of the second elastic member, the lower end of the clamping rod clamps the upper end of the baffle plate, so that the baffle plate is confined in the groove and cannot be opened. The sealing gasket is used to prevent the sand layer from forming an additional drainage channel and prevent the water in the sand layer from flowing to the drain plate through the small gap between the clamping rod and the shell. When the clamp pulls the clamping rod to move upward, the sealing gasket is pressed tightly against the slideway of the clamping rod, so that the water in the sand layer cannot flow to the drain plate through the small gap between the clamping rod and the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a structural schematic diagram of the sealing and fixing device of the drainage board of the present invention.

[0024] Figure 2 yes Figure 1 Schematic diagram of the structure when clamping the drain board.

[0025] Figure 3 yes Figure 2 Schematic diagram of the structure after the shell is removed.

[0026] Figure 4 It is a structural schematic diagram of the contrasting states of the closed and opened states of the baffle of the drainage board sealing and fixing device of the present invention.

[0027] Figure 5 It is a structural schematic diagram of the sealing device of the drainage board sealing and fixing device of the present invention.

[0028] Figure 6 yes Figure 1 Schematic diagram of the structure after the clamp is removed.

[0029] Figure 7 It is a structural schematic diagram of the connection state of the clamp and the fixing rod of the drainage board sealing fixing device of the present invention. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Example

[0032] Reference Figures 1 to 4 The present embodiment relates to a drain board fixing device, comprising a shell 1, a clamping device 2, a sealing device 3 and a baffle device 4. The upper end of the shell 1 is provided with an opening 11 for installing the clamping device 2, and the clamping device 2 is used to clamp the drain board 5; the baffle device 4 is arranged at the lower part of the shell 1, and the upper end of the sealing device 3 is connected to the clamping device 2; when the lower end of the sealing device 3 abuts against the baffle device 4, the baffle device 4 is in a closed state; when the drain board 5 is pulled, the drain board 5 drives the clamping device 2 to move upward, and at the same time, the clamping device 2 drives the lower end of the sealing device 3 to move upward, so that the lower end of the sealing device 3 is separated from the baffle device 4 and the baffle device 4 is in an open state.

[0033] One end of the vacuum preloaded drain plate 5 is inserted into the clamping device 2, so that the clamping device 2 pre-clamps the drain plate 5. During construction, the device is fixed to the end of the drain plate, and inserted into the soil together with the drain plate 5. When the plate inserting machine sleeve is withdrawn, it drives the drain plate 5 to move upward, so that the drain plate 5 drives the clamping device 2 to move upward, and then the clamping device 2 drives the sealing device 3 to move upward and the lower end of the sealing device 3 moves upward, so that the lower end of the sealing device 3 is separated from the baffle device 4, and the baffle device 4 is opened under the action of elastic force. Finally, the drain plate 5 is fixed in the soil through the device, which has the advantages of easy installation, safety and reliability, and greatly improves the efficiency of construction.

[0034] The baffle device 4 includes a baffle 41 hinged to the lower part of the shell 1, and an elastic member 42 for popping the baffle 41 open. When the baffle 41 is opened, the baffle 41 is clamped in the soil, so that the drain plate 5 is fixed in the soil. When the lower end of the sealing device 3 and the baffle 41 device 4 are separated from each other, the baffle 41 is popped open under the elastic force of the elastic member 42, so that the baffle 41 is stuck in the soil. More preferably, the baffle 41 is provided in two pieces, and is respectively provided on both sides of the lower part of the shell 1, and the two ends of the elastic member 42 press the two baffles 41 respectively. When the lower end of the sealing device 3 and the baffle 41 device 4 are separated from each other, the two baffles 41 are simultaneously popped open by the elastic member 42, so that the purpose of the two baffles 41 being stuck in the soil at the same time is achieved, and the connection tightness between the drain plate 5 and the soil is improved.

[0035] The baffle 41 is hinged to the lower part of the housing 1 through a pin 40; the elastic member 42 is a torsion spring. The torsion spring provides elastic force for the baffle 41, so that the baffle 41 is bounced open. The torsion spring can be arranged on the pin; Figure 2 and Figure 3 As shown, a fixed shaft (not shown) can be provided on the housing 1 between the two baffles 41, and a torsion spring can be installed on the fixed shaft, and the two ends of the torsion spring can respectively press the two baffles 41. When the lower end of the sealing device 3 and the baffle device 4 are separated from each other, the torsion spring pushes the two baffles 41 apart at the same time.

[0036] The lower part of the housing 1 is provided with a groove 12. When the device is just inserted into the soil, the baffle 41 and the device 4 are in a closed state, and the baffle 41 is arranged in the groove 12. When the lower end of the sealing device 3 and the baffle 41 and the device 4 are separated from each other, the baffle 41 is ejected from the groove 12 by the elastic member 42.

[0037] like Figure 1 , Figure 6 and Figure 7As shown, the clamping device 2 includes a fixed rod 6 disposed in the opening 11, and a clamp 23 with an oblique guide block 22 or an oblique guide groove 21; the fixed rod 6 is provided with the oblique guide groove 21 or the oblique guide block 22, so that the oblique guide groove 21 or the oblique guide block 22 on the fixed rod 6 corresponds to the oblique guide block 22 or the oblique guide groove 21 on the clamp 23 and can be slidably mounted together to form a motion mechanism of a sliding guide rail. The clamps 23 are provided on the two opposite inner side walls of the opening 11; the clamp 23 in the opening 11 is used to clamp the drain board 5, and the drain board 5 is pre-clamped on the clamp 23. When the drain board 5 is pulled upward, the oblique guide block 22 slides obliquely upward along the oblique guide groove 21, so that the clamp 23 gradually clamps the drain board 5. This structure adopts a guiding structure that cooperates with an oblique guide groove 21 and an oblique guide block 22. When the drain board 5 drives the two clamps 23 to move upward, under the limiting action of the oblique guide groove 21 and the oblique guide block 22, the two clamps 23 move obliquely upward, that is, the two clamps move upward and move toward each other at the same time, so that the two clamps 23 continuously clamp the drain board 5 until the clamps 23 can no longer move. At this time, the drain board 5 is stably fixed on the shell 1.

[0038] like Figure 4 and Figure 5 As shown, the sealing device 3 includes a clamping rod 31, a second elastic member 32 and a sealing pad 33. The upper end of the clamping rod 31 is connected to the clamping device 2, and the lower end of the clamping rod 31 extends into the lower part of the housing 1; the sealing pad 33 is sleeved on the clamping rod 31, and the second elastic member 32 presses the lower end of the clamping rod 31 and the sealing pad 33; the second elastic member 32 presses the sealing pad 33 toward the housing 1 to seal the gap between the clamping rod 31 and the housing 1, and the second elastic member 32 presses the lower end of the clamping rod 31 toward the baffle device 4. When the drain plate 5 is not pulled upward, due to the elastic force of the second elastic member 32, the second elastic member presses the lower end of the clamping rod toward the baffle 41, so that the lower end of the clamping rod 31 is clamped (resisted) to the upper end of the baffle 41, and the baffle 41 is restricted in the groove and cannot be opened; at the same time, the second elastic member presses the sealing pad upward onto the housing to seal the gap between the clamping rod and the housing. The sealing pad 33 is used to prevent the sand layer from forming an additional drainage channel, and to prevent the water in the sand layer from flowing to the drainage board 5 through the small gap between the clamp 31 and the housing 1. When the clamp 23 drives the clamp 31 to move upward, the sealing pad 33 is always pressed against the mounting hole of the clamp 31, so that the water in the sand layer cannot flow to the drainage board 5 through the small gap between the clamp 31 and the housing 1. At the same time, the clamp overcomes the elastic force of the second elastic member and moves upward, so that the lower end of the clamp is separated from the stopper. The sealing pad 33 is made of rubber material.

[0039] The second elastic member 32 is a spring. Of course, other materials with good elasticity are also suitable for the present invention.

[0040] The upper end of the clamping rod 31 is connected to the clamping device 2 via a connecting rope 34. One end of the connecting rope 34 is connected to the lower end of the clamp 23, and the other end of the connecting rope 34 is connected to the upper end of the clamping rod 31. When the drain plate 5 drives the clamp 23 to move upward, the clamp 23 pulls the clamping rod 31 and the sealing gasket 33 upward through the connecting rope 34, so that the lower end of the clamping rod 31 is separated from the upper end of the baffle 41, and the sealing gasket 33 seals the mounting hole of the clamping rod 31.

[0041] The outer wall of the housing 1 is provided with a sleeve clamping plate 13 for connecting with the plate inserting machine, and the sleeve of the plate inserting machine is clamped on the sleeve clamping plate 13. The sleeve of the plate inserting machine is clamped on the sleeve clamping plate 13. The plate inserting machine gently pulls the drain plate 5 so that the device can pre-clamp the drain plate 5, and the sleeve drives the device and the drain plate 5 to be inserted into the soil until the designed depth; then, under the action of the sleeve retraction, the drain plate 5 is subjected to an upward pulling force, driving the clamping device 2 to move upward, so that the clamping rod 31 and the baffle 41 are separated from each other and the baffle 41 is bounced open. The baffle 41 is bounced open under the elastic force of the spring, so that the drain plate 5 is tightly fixed in the soil under the action of the device.

[0042] The above disclosure is only a preferred embodiment of the present invention, which certainly cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope of the present invention.

Claims

1. A drainage board sealing and fixing device, characterized in that: It includes an outer shell, a clamping device, a sealing device and a baffle device. The upper end of the outer shell is provided with an opening for installing the clamping device, and the clamping device is used to clamp the drain plate; the baffle device is arranged at the lower part of the outer shell, and the upper end of the sealing device is connected to the clamping device; when the lower end of the sealing device abuts against the baffle device, the baffle device is in a closed state; when the drain plate is pulled upward, the drain plate drives the clamping device to move upward, and at the same time the clamping device drives the lower end of the sealing device to move upward, so that the lower end of the sealing device and the baffle device are separated from each other and the baffle device is in an open state.

2. A drainage board sealing and fixing device according to claim 1, characterized in that: The baffle device comprises a baffle hinged to the lower part of the shell, and an elastic member used for springing the baffle open.

3. A drainage board sealing and fixing device according to claim 2, characterized in that: A groove is formed at the lower part of the shell, and when the baffle device is in a closed state, the baffle is arranged in the groove.

4. A drainage board sealing and fixing device according to claim 2, characterized in that: The baffle is provided in two pieces and is respectively arranged at two sides of the lower part of the shell, and the two ends of the elastic member respectively press the two baffles.

5. A drainage board sealing and fixing device according to claim 1, characterized in that: The clamping device includes a fixing rod and a clamp with an oblique guide block or an oblique guide groove arranged in the opening; the clamp is provided on two opposite inner side walls of the opening, the oblique guide block and the oblique guide groove are arranged correspondingly, and the guide block can be slidably sleeved in the guide groove; the clamp in the opening is used to clamp the drain board, and the drain board is pre-clamped on the clamp, and when the drain board is subjected to an upward pulling force, the oblique guide block slides obliquely upward along the oblique guide groove, so that the clamp gradually clamps the drain board.

6. A drainage board sealing and fixing device according to claim 1, characterized in that: The sealing device includes a clamping rod, a second elastic member and a sealing gasket, the upper end of the clamping rod is connected to the clamping device, and the lower end of the clamping rod extends into the lower part of the shell; the sealing gasket is sleeved on the clamping rod, and the second elastic member presses the lower end of the clamping rod and the sealing gasket, the second elastic member presses the sealing gasket against the upper end of the clamping rod to seal the gap between the clamping rod and the shell, and the second elastic member presses the lower end of the clamping rod against the baffle device.

7. A drainage board sealing and fixing device according to claim 2 or 4, characterized in that: The baffle is hinged to the lower part of the shell through a pin shaft; and the elastic member is a torsion spring.

8. A drainage board sealing and fixing device according to claim 6, characterized in that: The second elastic member is a spring.

9. A drainage board sealing and fixing device according to claim 6, characterized in that: The upper end of the clamping rod is connected to the clamping device through a connecting rope.

10. A drainage board sealing and fixing device according to claim 1, characterized in that: The outer side wall of the shell is provided with a sleeve clamping plate for connecting with the plate inserting machine, and the sleeve of the plate inserting machine is clamped on the sleeve clamping plate.

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