Foundation pit confined water gushing plugging device

Abstract

The utility model relates to the technical field of engineering, in particular to a foundation pit confined water gushing plugging device which is characterized in that a clamping groove is formed in the outer surface of a lower pipe, a limiting groove is formed in the inner wall of the lower pipe, and a plurality of connecting plates are arranged on the inner wall of the lower pipe; a screw rod is arranged in the upper pipe, and an upper fixing plate is arranged on the upper pipe; the device has the beneficial effects that the handle on the screw rod is rotated, so that the screw rod rotates along the threads in the upper pipe, along with rotation of the screw rod, the pressing block is pressed downwards to extrude the fixing block, the lower fixing plate rotates along the rotating shaft to press the sealing gasket, the outer diameter of the sealing gasket is larger than that of the lower pipe, and the inner diameter of the sealing gasket is smaller than that of the lower pipe; meanwhile, the gap between the lower pipe and the drill hole can be filled with the expansion water stop pad in the clamping groove, the water tightness of the device is further improved, water overflowing of the drill hole is effectively avoided, and the construction cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering, in particular to a foundation pit pressurized water gushing blocking device. Background Art

[0002] With the increase in deep and large foundation pits, underground pressurized water often seeps out along the drill holes due to poor sealing, which not only brings risks to the project but also causes great economic losses.

[0003] At present, when water is gushing out from a borehole in a deep foundation pit, the following measures are mainly taken: double-liquid grouting, because it is constructed under water pressure, it often causes poor sealing and causes large-scale siltation of surrounding drainage wells that have been constructed. Generally, the cost of double-liquid grouting is at least 50,000 yuan. Severe cases may require several visits to the site to be resolved. When strong precipitation is required during well construction, the cost of well construction and subsequent operation also ranges from hundreds of thousands, which is too expensive; constructing a drainage well next to the water-gushing borehole for strong precipitation, which requires a significant reduction in the groundwater level and will have an impact on the surrounding environment; pumping out the gushing water, but this method makes the pit bottom muddy and difficult to construct, and the gushing water from the pit bottom may cause instability of the support structure and the foundation. For this reason, the utility model proposes a foundation pit pressurized water gushing plugging device to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a foundation pit pressurized water gushing plugging device to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a foundation pit pressurized water gushing plugging device, the foundation pit pressurized water gushing plugging device comprising: a lower pipe, a clamping groove is provided on the outer surface of the lower pipe, a limiting groove is provided on the inner wall of the lower pipe, and a plurality of connecting plates are provided on the inner wall of the lower pipe;

[0006] An upper tube is provided with a screw rod inside the upper tube and an upper fixing plate is provided on the upper tube.

[0007] Preferably, the slot is in the form of an annular plate structure, and the expansion water-stopping pad can be inserted into the slot, and the expansion water-stopping pad is in the form of an annular plate structure.

[0008] Preferably, the limiting groove is an annular plate structure, the sealing gasket can be inserted into the limiting groove, the outer diameter of the sealing gasket is larger than the outer diameter of the lower tube, and the inner diameter of the sealing gasket is smaller than the inner diameter of the lower tube.

[0009] Preferably, the connecting plate is rotatably connected to the rotating shaft, the other end of the rotating shaft is fixedly connected to the fixing block, and the fixing block is fixedly connected to the lower fixing plate.

[0010] Preferably, the screw is threadedly connected to the upper tube, a pressure plate is fixedly connected to the lower surface of the screw, the pressure plate has a circular plate-like structure, the lower surface of the pressure plate is fixedly connected to the sealing plate, the sealing plate has a circular plate-like structure, and a pressure block is fixedly connected to the lower surface of the sealing plate.

[0011] Preferably, the upper fixing plate is threadably connected to the upper tube, the upper fixing plate is a circular plate-shaped structure, and a waterproof ring is fixedly connected to the upper fixing plate.

[0012] Preferably, the lower surface of the upper tube is fixedly connected to the upper surface of the lower tube.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model discloses a foundation pit pressurized water gushing plugging device, fixes the sealing pad in the limit groove of the lower pipe, installs the expansion water stop pad in the clamping groove of the lower pipe, then clamps the device into the drill hole on the ground, rotates the handle on the screw rod, makes the screw rod rotate along the thread inside the upper pipe, and as the screw rod rotates, the pressing plate, the plugging plate and the pressing block are pressed downward to squeeze the fixing block, so that the fixing block and the lower fixing plate rotate along the rotating shaft to press the sealing pad, thereby fixing the sealing pad, and the outer diameter of the sealing pad is larger than the outer diameter of the lower pipe, and the inner diameter of the sealing pad is smaller than the outer diameter of the lower pipe. The inner diameter of the lower tube can improve the water tightness of the joint between the lower tube and the drilled hole. At the same time, the expansion water-stop pad in the slot can fill the gap between the lower tube and the drilled hole, further improving the water tightness of the device, effectively avoiding water from bubbling up through the drilled hole, and reducing construction costs. The upper fixing plate is threaded with the outer surface of the upper tube. By turning the handle on the upper fixing plate, the relative position of the upper fixing plate and the lower fixing plate can be changed so that the device can clamp the drilled hole on the ground, thereby avoiding relative displacement between the device and the drilled hole on the ground and reducing the water tightness of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the structural section of the utility model;

[0017] Figure 3 for Figure 2 The enlarged structural diagram at A in the middle;

[0018] Figure 4 It is a bottom view schematic diagram of the structure of the utility model.

[0019] In the figure: 1. lower tube; 2. upper tube; 3. connecting plate; 4. slot; 5. limit slot; 6. screw; 7. upper fixing plate; 8. waterproof ring; 9. expansion water stop pad; 10. sealing pad; 11. fixing block; 12. lower fixing plate; 13. pressure plate; 14. sealing plate; 15. pressure block; 16. rotating shaft. DETAILED DESCRIPTION

[0020] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the description of the present utility model, it should be noted that the terms "center", "middle", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "one", "first", "second", "third", "fourth", "fifth", "sixth" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] For the purpose of simplicity and illustration, the principles of the embodiments are mainly described by reference to examples. In the following description, many specific details are proposed to provide a thorough understanding of the embodiments. However, it is obvious that for those of ordinary skill in the art, these embodiments may not be limited to these specific details in practice. In some instances, known methods and structures are not described in detail to avoid making these embodiments unnecessarily difficult to understand. In addition, all embodiments can be used in combination with each other.

[0024] Embodiment 1

[0025] See also Figures 1 to 4The utility model provides a technical solution: a foundation pit pressure water gushing plugging device, the foundation pit pressure water gushing plugging device comprises: a lower pipe 1, the outer surface of the lower pipe 1 is provided with a card slot 4, the inner wall of the lower pipe 1 is provided with a limit slot 5, and the inner wall of the lower pipe 1 is provided with a plurality of connecting plates 3; an upper pipe 2, the interior of the upper pipe 2 is provided with a screw 6, and the upper pipe 2 is provided with an upper fixing plate 7;

[0026] During specific use, the sealing gasket 10 is inserted into the limiting groove 5 opened on the lower tube 1 and the expansion water-stop pad 9 is inserted into the slot 4 opened on the lower tube 1. The device screw 6 cooperates with the thread set inside the upper tube 2. The handle set on the screw 6 is turned to make the screw 6 rotate along the thread set inside the upper tube 2, thereby changing the position of the pressure plate 13, the sealing plate 14 and the pressure block 15. The upper fixed plate 7 cooperates with the thread set on the outer surface of the upper tube 2. The handle set on the upper fixed plate 7 is turned to make the upper fixed plate 7 rotate along the thread set on the outer surface of the upper tube 2, thereby changing the relative position of the upper fixed plate 7 and the lower fixed plate 12.

[0027] Embodiment 2

[0028] On the basis of the first embodiment, in order to make the device have good water tightness to prevent water from bubbling out of the drilling hole, a card slot 4 is provided, the card slot 4 is an annular plate structure, the expansion water stop pad 9 can be inserted into the card slot 4, the expansion water stop pad 9 is an annular plate structure, the limit groove 5 is an annular plate structure, the sealing gasket 10 can be inserted into the limit groove 5, the outer diameter of the sealing gasket 10 is larger than the outer diameter of the lower tube 1, the inner diameter of the sealing gasket 10 is smaller than the inner diameter of the lower tube 1, the connecting plate 3 is rotatably connected to the rotating shaft 16, the other end of the rotating shaft 16 is fixedly connected to the fixed block 11, the fixed block 11 is fixedly connected to the lower fixed plate 12, the screw 6 is threadedly connected to the upper tube 2, the lower surface of the screw 6 is fixedly connected to the pressing plate 13, the pressing plate 13 is a circular plate structure, the lower surface of the pressing plate 13 is fixedly connected to the blocking plate 14, the blocking plate 14 is a circular plate structure, and the lower surface of the blocking plate 14 is fixedly connected to the pressing block 15;

[0029] During specific use, the sealing gasket 10 is installed in the limiting groove 5 opened on the lower tube 1, and the expansion water-stopping pad 9 is installed in the slot 4 opened on the lower tube 1. The device is inserted along the drilled hole on the ground, and the handle set on the screw 6 is turned to make the screw 6 rotate along the thread set inside the upper tube 2, so that the pressure plate 13, the sealing plate 14 and the pressure block 15 are pressed down, and the pressure block 15 squeezes the fixed block 11 so that the fixed block 11 and the lower fixed plate 12 are rotated along the rotating shaft 16 until the lower fixed plate 12 and the sealing gasket 10 are squeezed to fix the sealing gasket 10. The outer diameter of the sealing gasket 10 is larger than the outer diameter of the lower tube 1, and the inner diameter of the sealing gasket 10 is smaller than the inner diameter of the lower tube 1. The sealing gasket 10 can ensure the water tightness of the joint between the lower tube 1 and the drilled hole, and the expansion water-stopping pad 9 in the slot 4 can fill the space between the lower tube 1 and the drilled hole to further improve the water tightness of the device, effectively avoid water from gushing out of the drilled hole, and reduce construction costs.

[0030] Embodiment 3

[0031] On the basis of the second embodiment, in order to enable the device to be fixed on the ground drilled hole, an upper fixing plate 7 is provided, the upper fixing plate 7 is threadedly connected to the upper tube 2, the upper fixing plate 7 is a circular plate-shaped structure, the upper fixing plate 7 is fixedly connected with a waterproof ring 8, and the lower surface of the upper tube 2 is fixedly connected to the upper surface of the lower tube 1;

[0032] During specific use, the upper fixing plate 7 cooperates with the threads set on the outer surface of the upper tube 2. The handle set on the upper fixing plate 7 is rotated to make the upper fixing plate 7 rotate along the threads set on the outer surface of the upper tube 2, thereby changing the relative position of the upper fixing plate 7 and the lower fixing plate 12. The equipment can be clamped to the ground drilled hole and the device can be fixed on the ground drilled hole, which can avoid relative displacement between the equipment and the ground drilled hole to reduce the water tightness of the device.

[0033] Working principle: In actual use, the sealing gasket 10 is fixed in the limiting groove 5 of the lower tube 1, and the expansion water-stop pad 9 is installed in the card groove 4 of the lower tube 1, and then the device is inserted into the drilled hole on the ground, and the handle on the screw 6 is turned to make the screw 6 rotate along the thread inside the upper tube 2. As the screw 6 rotates, the pressing plate 13, the blocking plate 14 and the pressing block 15 are pressed down to squeeze the fixing block 11, so that the fixing block 11 and the lower fixing plate 12 rotate along the rotating shaft 16 to press the sealing gasket 10, thereby fixing the sealing gasket 10, and the outer diameter of the sealing gasket 10 is larger than the outer diameter of the lower tube 1, and the sealing gasket The inner diameter of 10 is smaller than that of the lower tube 1, so the water tightness of the joint between the lower tube 1 and the drilled hole can be improved. At the same time, the expansion water-stop pad 9 in the slot 4 can fill the gap between the lower tube 1 and the drilled hole, further improving the water tightness of the device, effectively avoiding water from the drilled hole, and reducing the construction cost. The upper fixing plate 7 is threadedly matched with the outer surface of the upper tube 2. By turning the handle on the upper fixing plate 7, the relative position of the upper fixing plate 7 and the lower fixing plate 12 can be changed so that the device can clamp the drilled hole on the ground, which can avoid relative displacement between the device and the drilled hole on the ground and reduce the water tightness of the device.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A foundation pit pressurized water gushing plugging device, characterized in that: The foundation pit pressurized water gushing plugging device comprises: a lower pipe (1), the outer surface of the lower pipe (1) is provided with a clamping groove (4), the inner wall of the lower pipe (1) is provided with a limiting groove (5), and the inner wall of the lower pipe (1) is provided with a plurality of connecting plates (3); An upper tube (2) is provided with a screw rod (6) inside the upper tube (2), and an upper fixing plate (7) is provided on the upper tube (2).

2. A foundation pit pressurized water gushing plugging device according to claim 1, characterized in that: The clamping groove (4) is in the form of an annular plate structure, and the expansion water-stopping pad (9) can be clamped into the clamping groove (4), and the expansion water-stopping pad (9) is in the form of an annular plate structure.

3. A foundation pit pressurized water gushing plugging device according to claim 1, characterized in that: The limiting groove (5) is an annular plate-shaped structure, and the sealing gasket (10) can be inserted into the limiting groove (5). The outer diameter of the sealing gasket (10) is larger than the outer diameter of the lower tube (1), and the inner diameter of the sealing gasket (10) is smaller than the inner diameter of the lower tube (1).

4. A foundation pit pressurized water gushing plugging device according to claim 1, characterized in that: The connecting plate (3) is rotatably connected to the rotating shaft (16), the other end of the rotating shaft (16) is fixedly connected to the fixing block (11), and the fixing block (11) is fixedly connected to the lower fixing plate (12).

5. The device for plugging water inflow from pressurized water in a foundation pit according to claim 1, characterized in that: The screw rod (6) is threadedly connected to the upper tube (2); a pressure plate (13) is fixedly connected to the lower surface of the screw rod (6); the pressure plate (13) is in a circular plate-like structure; the lower surface of the pressure plate (13) is fixedly connected to a sealing plate (14); the sealing plate (14) is in a circular plate-like structure; a pressure block (15) is fixedly connected to the lower surface of the sealing plate (14).

6. A foundation pit pressurized water gushing plugging device according to claim 1, characterized in that: The upper fixing plate (7) is threadedly connected to the upper tube (2); the upper fixing plate (7) is a circular plate-shaped structure; and the upper fixing plate (7) is fixedly connected with a waterproof ring (8).

7. The device for plugging water inflow from pressurized water in a foundation pit according to claim 1, characterized in that: The lower surface of the upper tube (2) is fixedly connected to the upper surface of the lower tube (1).

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