CN210597320U - Deep foundation pit plugging device - Google Patents
Deep foundation pit plugging device Download PDFInfo
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- CN210597320U CN210597320U CN201921229794.3U CN201921229794U CN210597320U CN 210597320 U CN210597320 U CN 210597320U CN 201921229794 U CN201921229794 U CN 201921229794U CN 210597320 U CN210597320 U CN 210597320U
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Abstract
The utility model relates to the technical field of deep foundation pit construction, and discloses a deep foundation pit plugging device, which comprises a limiting pipe and a plugging pipe, wherein the bottom of the limiting pipe is sealed by a fixed part; the outer side wall of the limiting pipe close to the fixing part is provided with a water permeable hole; a sealing part is arranged in the limiting pipe; the sealing part is provided with a first lifting assembly; the top of the plugging pipe is provided with a second lifting assembly; when the fixing part is clamped with the sealing part, the periphery of the fixing part is attached to the water permeable hole; the plugging pipe is arranged on the outer side wall of the limiting pipe in a sliding mode, and a water drainage hole corresponding to the water permeable hole is formed in the outer side wall of the plugging pipe; the inner side wall and the top of the plugging pipe close to the limiting pipe are both of fixed plate structures, and the outer side wall and the bottom of the plugging pipe are both made of rubber materials; a filter screen which is flush with the inner wall of the limiting pipe is arranged at the position of the water permeable hole; the top of the plugging pipe is provided with a water through hole; the water through opening is sealed by a sealing cover. The utility model has the advantages of it is following and effect: the plugging effect on the deep foundation pit is better.
Description
Technical Field
The utility model relates to a deep basal pit construction technical field, in particular to deep basal pit plugging device.
Background
The leakage of the foundation pit can greatly affect the construction of the foundation pit and the surrounding environment, so that the leakage position needs to be stopped in time after the foundation pit is excavated. At present, the foundation pit plugging is generally performed by directly plugging a water leakage part by using a plugging material or plugging by a method of introducing holes from the ground for grouting, and in the actual operation process of the hole introduction grouting method, because the actual height of the water leakage part from the ground is unknown, if the water leakage condition occurs in a deep foundation pit, the hole introduction time is longer, the pipe plugging phenomenon can also occur to the plugging material during grouting, and the plugging cannot be smoothly realized. The leaking stoppage of the water leakage part is directly carried out by using the leaking stoppage material, firstly, the leaking hole with the leaking water is found, then, the grouting pipe is inserted for leaking stoppage, if the water flow is large, the leaking stoppage material can be washed out, therefore, a part of the water gushing is firstly discharged, then, the leaking stoppage is carried out, in addition, a filtering material or a filtering screen needs to be installed in the process of outwards gushing the water, otherwise, sandy soil can gush out along with the gushing water, and the damage of a foundation pit is caused.
At present, a Chinese utility model patent with publication number CN208618418 discloses a deep foundation pit plugging device, which comprises an air bag pipe, wherein the air bag pipe is a double-layer pipe, a hollow cavity is arranged between an inner wall and an outer wall, the other end of the air bag pipe is connected with an annular filter plate and a filtering elastic sheet, an air bag is arranged on the outer wall of the air bag pipe, and a plurality of second holes are arranged on the inner wall of the air bag pipe; the limiting pipe is internally provided with a rotating plate, and the radius of the rotating plate is larger than the distance between the filtering elastic sheet and the rotating shaft; the slip casting pipe, its outer wall circumference round cover that is close to one end is equipped with the block structure, and it can block in a plurality of corresponding second holes and third hole just.
Above-mentioned technical scheme make full use of gush out water carries out the sealing of pipe outer wall and pipeline passageway, can also realize in time slip casting shutoff, nevertheless has following defect: through rotating spacing pipe, make the baffle block sealed filter, make the filter no longer strain water, second hole and third hole one-to-one this moment and for the axis coincidence of second hole and third hole, make water can not get into in the gasbag pipe, owing to rotate the structure that is in deep basal pit bottom, its board coincidence that can not guarantee completely not to have the filtration pore is in the position of the board that has the filtration pore, hardly realize being in the sealed of the tip of deep basal pit to spacing pipe, lead to the leaking stoppage effect not good.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims at providing a deep basal pit plugging device, its leaking stoppage effect to deep basal pit is better.
The above technical purpose of the present invention can be achieved by the following technical solutions:
a deep foundation pit leakage stopping device comprises a limiting pipe and a blocking pipe sleeved outside the limiting pipe, wherein the bottom of the limiting pipe is sealed through a fixing part; the outer side wall of the limiting pipe close to the fixing part is provided with water permeable holes along the two ends of the limiting pipe in the radial direction; a sealing part attached to the inner wall of the limiting pipe is arranged in the limiting pipe; the sealing part is provided with a first lifting assembly; the top of the plugging pipe is provided with a second lifting assembly; when the fixing part is clamped with the sealing part, the periphery of the fixing part is attached to the water permeable hole; the plugging pipe is arranged on the outer side wall of the limiting pipe in a sliding mode, and a water drainage hole corresponding to the water permeable hole is formed in the outer side wall of the plugging pipe; the inner side wall and the top of the plugging pipe close to the limiting pipe are both of fixed plate structures, and the outer side wall and the bottom of the plugging pipe are both made of rubber materials; the inner side wall of the plugging pipe is tightly attached to the outer side wall of the limiting pipe; a filter screen which is flush with the inner wall of the limiting pipe is arranged at the position of the water permeable hole; the top of the plugging pipe is provided with a water through hole; the water through opening is sealed by a sealing cover.
Through adopting above-mentioned technical scheme, place into deep basal pit with the plugging device in, fixed part and sealing part joint, the bottom of shutoff pipe and the bottom parallel and level of spacing pipe, the hole of permeating water is stopped up by the sealing part with the wash port. Promote the shutoff pipe through the second hoisting assembly for the hole of permeating water staggers with the wash port, and the first hoisting assembly of rethread promotes the sealing, breaks away from the joint with the fixed part, makes to permeate water and communicates in hole and the deep basal pit. Meanwhile, negative pressure is formed in the cavity below the sealing part in the limiting pipe, so that accumulated water in the deep foundation pit can easily flow into the limiting pipe. After the sealing part is lifted to the set height, the plugging pipe is placed at the bottom of the pit through the second lifting assembly, so that the bottom of the plugging pipe is flush with the bottom of the limiting pipe, the drain hole is aligned with the permeable hole, the sealing part is moved downwards, accumulated water in the limiting pipe is extruded, the accumulated water enters the plugging pipe, the plugging pipe expands outwards when the accumulated water in the plugging pipe is full of, and the effect of sealing the plugging channel is achieved. The filter screen is arranged, so that impurities at the bottom of the pit are reduced from entering the limiting pipe to cause blockage. When the accumulated water entering the limiting pipe is not much, the operation can be repeated, if the accumulated water in the blocking pipe is not enough, water is artificially introduced through the water through opening to enable the expansion effect of the blocking pipe to be better, and finally the water through opening is sealed through the sealing cover.
The utility model is further arranged that the upper end surface of the fixed part is provided with a mounting groove; the groove wall of the mounting groove is back to the direction of the axis of the limiting pipe, and the two ends of the mounting groove in the radial direction of the limiting pipe are provided with first clamping grooves; the sealing part comprises a first sealing block attached to the inner wall of the limiting pipe and a second sealing block arranged on the lower end face of the first sealing block and matched with the mounting groove; a groove is formed in the second sealing block corresponding to the first clamping groove in the axial direction of the limiting pipe; a clamping block is arranged in the groove in a sliding manner; the end part of the clamping block, which is far away from the first clamping groove, is connected with the groove through a first spring; the end part of the clamping block close to the first clamping groove is obliquely arranged from bottom to top towards the upper end surface and the lower end surface of the clamping block.
Through adopting above-mentioned technical scheme, remove first sealed piece to the direction that is close to the fixed part through first lifting unit spare, make the fixture block remove the position that corresponds with first draw-in groove, the fixture block lose with the cell wall between the cell wall of mounting groove between the elasticity of first spring, make the fixture block stretch into in the draw-in groove, form the joint, the week side of second sealed piece will permeate water the hole and plug up, make the difficult spacing pipe that flows in of ponding that gets into in the shutoff pipe, the inflation realization shutoff effect that the ponding that the assurance was gushed into in the spacing pipe is used for the shutoff pipe. The end part of the clamping block is arranged to be an arc-shaped surface, so that when external force is used, the clamping block can be fixed with the clamping groove and can also be separated from the clamping groove.
The utility model is further arranged that the upper end surface of the first sealing block is provided with a thread groove; the lifting assembly comprises a pull rod in threaded fit with the threaded groove and a pull ring fixed at the upper end of the pull rod; the end part of the pull ring, which is far away from the pull rod, extends out of the top of the limiting pipe.
By adopting the technical scheme, the threaded groove is formed, so that the pull rod is inserted into the threaded groove and fixed with the threaded groove to lift the sealing part; set up the pull ring, make things convenient for operating personnel to operate, when need not using, the reverse knob of accessible is received the pull rod, does not influence other constructions in the deep basal pit.
The utility model is further arranged that a fixed groove is arranged on the inner side wall of the blocking pipe and the position close to the upper part of the drain hole; a snap ring is arranged in the fixing groove in a sliding manner; the end part of the snap ring, which is far away from the limiting pipe, is fixed in the fixing groove through a second spring; the end part of the clamping ring, which is close to the limiting pipe, is obliquely arranged from bottom to top in the direction of the upper end surface and the lower end surface of the clamping ring; a second clamping groove matched with the clamping ring is formed in the position, close to the upper part of the water permeable hole, of the outer side wall of the limiting pipe; and a third clamping groove which is arranged at an interval with the second clamping groove is formed in the outer side wall of the limiting pipe and above the second clamping groove.
Through adopting above-mentioned technical scheme, set up the snap ring for the area of contact increase of shutoff pipe and spacing pipe makes both contacts more inseparabler. When the clamping ring moves to the second clamping groove through the second lifting assembly, the water permeable hole is aligned with the water drainage hole, so that a channel between the limiting pipe and the plugging pipe is opened; when upwards promoting the snap ring to the position of third draw-in groove, the snap ring pops out from the fixed slot and fixes between the third draw-in groove, and the hole of permeating water staggers with the wash port for the bottom of shutoff pipe is located the top in the hole of permeating water, and ponding can follow the hole of permeating water and get into in spacing pipe.
The utility model is further arranged that a drain pipe is arranged at the drain hole; the water discharge pipe comprises a first pipeline and a second pipeline sleeved outside the first pipeline; the first pipeline is connected with the second pipeline through a third spring; the end part of the second pipeline is obliquely arranged from bottom to top in the direction close to the axis of the second pipeline; the lateral wall of second pipeline and the inside wall laminating in hole of permeating water.
Through adopting above-mentioned technical scheme, when the wash port with permeate water the hole unalignment, the second pipeline compression is between shutoff pipe and spacing pipe, when the wash port with permeate water the hole alignment, because the effect of third spring for the second pipeline stretches out to permeating water downthehole to the direction of permeating water the hole, guarantees that ponding can get into in the shutoff pipe along the drain pipe, avoids ponding to run off in the deep basal pit. The end part of the second pipeline is arranged in an inclined state, so that the plugging pipe can be conveniently separated from the limiting pipe when moving relative to the limiting pipe.
The utility model is further arranged that the upper end of the plugging pipe is provided with a water pumping port; the water pumping port is connected with a one-way valve; the one-way valve is connected with a water storage tank through an overflow pipe.
By adopting the technical scheme, the one-way valve is arranged, and the opening pressure of the one-way valve is the maximum pressure which can be borne by the plugging pipe. When the pressure generated by the accumulated water in the plugging pipe exceeds the opening pressure of the one-way valve, the one-way valve is opened, so that part of the accumulated water overflows into the water storage tank, and when the pressure in the plugging pipe is less than or equal to the opening pressure of the one-way valve, the one-way valve is closed, so that the plugging pipe is kept in a proper expansion state, and the damage of the plugging pipe is avoided.
The utility model discloses further set up to, the second promotes the subassembly including locating the shutoff pipe top and be close to the shutoff pipe and keep away from the first mounting at the edge of spacing pipe, locate the second mounting that the shutoff pipe top just set up with first mounting interval.
Through adopting above-mentioned technical scheme, set up first mounting and second mounting, conveniently promote the shutoff pipe to set up first mounting and second mounting in shutoff pipe top and be close to the shutoff pipe and keep away from the edge of spacing pipe, the constructor of being convenient for operates, and does not influence other constructions.
The utility model discloses further set up to, be equipped with the limiting plate with the laminating of spacing inside pipe wall on the pull rod.
Through adopting above-mentioned technical scheme, set up the limiting plate, help the pull rod to prepare to insert in the thread groove and carry out the rotation fixed.
To sum up, the utility model discloses a beneficial technological effect does:
1. through the arrangement of the limiting pipe and the water-through expandable plugging pipe, water which is gushed out by utilizing can be utilized, and the plugging pipe can expand to realize the plugging effect on the inner wall of the deep foundation pit;
2. when the drainage hole is not aligned with the permeable hole, the second pipeline is compressed between the plugging pipe and the limiting pipe, and when the drainage hole is aligned with the permeable hole, the second pipeline extends into the permeable hole towards the permeable hole under the action of the third spring, so that accumulated water can enter the plugging pipe along the drainage pipe, and the accumulated water is prevented from flowing into the deep foundation pit;
3. and a one-way valve is arranged, and the opening pressure of the one-way valve is the maximum pressure which can be borne by the blocking pipe. When the pressure generated by the accumulated water in the plugging pipe exceeds the opening pressure of the one-way valve, the one-way valve is opened, so that part of the accumulated water overflows into the water storage tank, and when the pressure in the plugging pipe is less than or equal to the opening pressure of the one-way valve, the one-way valve is closed, so that the plugging pipe is kept in a proper expansion state, and the damage of the plugging pipe is avoided.
Drawings
FIG. 1 is a schematic view of the overall structure of the embodiment;
FIG. 2 is an enlarged schematic view of A of FIG. 1;
FIG. 3 is an enlarged schematic view of B of FIG. 1;
FIG. 4 is an enlarged schematic view of C of FIG. 1;
fig. 5 is a schematic structural diagram of the top of the plugging tube of the embodiment.
Reference numerals: 1. a limiting pipe; 11. a fixed part; 111. mounting grooves; 112. a first card slot; 12. water permeable holes; 121. a filter screen; 13. a sealing part; 131. a first seal block; 132. a second seal block; 133. a groove; 134. a clamping block; 135. a first spring; 136. a thread groove; 14. a second card slot; 15. a third card slot; 2. plugging the pipe; 21. a water inlet; 211. a sealing cover; 22. a water pumping port; 221. a one-way valve; 222. an overflow pipe; 223. a water storage tank; 23. a second lifting assembly; 231. a first fixing member; 232. a second fixing member; 24. a drain hole; 25. fixing grooves; 26. a snap ring; 27. a second spring; 28. a drain pipe; 281. a first conduit; 282. a second conduit; 283. a third spring; 3. a first lifting assembly; 31. a pull rod; 311. a limiting plate; 32. and (4) a pull ring.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, the deep foundation pit plugging device comprises a limiting pipe 1 and a plugging pipe 2 sleeved outside the limiting pipe 1.
The bottom of the limiting pipe 1 is sealed by a fixing part 11. Mounting groove 111 has been seted up to the up end of fixed part 11, and first draw-in groove 112 has been seted up to the cell wall of mounting groove 111 to the direction that deviates from spacing 1 axis of pipe and be located the radial both ends of spacing pipe 1. The stopper tube 1 is provided with a sealing part 13 which is attached to the inner wall of the stopper tube 1, and when the fixing part 11 is engaged with the sealing part 13, the periphery of the fixing part 11 is attached to the water permeable hole 12 (as shown in fig. 4). The sealing portion 13 includes a first sealing block 131 attached to the inner wall of the limiting tube 1, and a second sealing block 132 mounted on the lower end surface of the first sealing block 131 and adapted to the mounting groove 111. The second sealing block 132 is provided with a groove 133 in the axial direction of the limiting tube 1 at a position corresponding to the first locking groove 112, a clamping block 134 is slidably arranged in the groove 133, and the end of the clamping block 134 departing from the first locking groove 112 is fixedly connected with the groove 133 through a first spring 135. The end of the clamping block 134 close to the first clamping groove 112 is an inclined surface in which the upper and lower end surfaces of the clamping block 134 are inclined from bottom to top to the middle. The sealing portion 13 is mounted with the first lifting assembly 3. The upper end surface of the first sealing block 131 is provided with a thread groove 136, the first lifting assembly 3 comprises a pull rod 31 in thread fit with the thread groove 136, and a pull ring 32 fixedly welded on the upper end of the pull rod 31, and the end of the pull ring 32 departing from the pull rod 31 extends out of the top of the limiting pipe 1. The pull rod 31 is sleeved with a limiting plate 311 attached to the inner wall of the limiting pipe 1.
The inside wall and the top that shutoff pipe 2 is close to spacing pipe 1 are fixed plate structure, and the lateral wall and the bottom of shutoff pipe 2 are the rubber material. The inside wall of shutoff pipe 2 closely laminates with the lateral wall of spacing pipe 1.
As shown in fig. 2 and 3, a fixing groove 25 is formed in the inner side wall of the blocking pipe 2 and at a position above the drain hole 24, a snap ring 26 is slidably disposed in the fixing groove 25, an end portion of the snap ring 26 away from the limiting pipe 1 is fixed in the fixing groove 25 through a second spring 27, and an end portion of the snap ring 26 near the limiting pipe 1 is an inclined surface formed by inclining the upper end surface and the lower end surface of the snap ring 26 from bottom to top to a middle position. The position of the outer side wall of the limiting pipe 1 and the position close to the upper part of the permeable hole 12 is provided with a second clamping groove 14 matched with the clamping ring 26, and the position of the outer side wall of the limiting pipe 1 and the position above the second clamping groove 14 is provided with a third clamping groove 15 arranged at an interval with the second clamping groove 14.
As shown in fig. 4, the outer side wall of the limiting pipe 1 close to the fixing part 11 is provided with water permeable holes 12 along the two radial ends of the limiting pipe 1, and the water permeable holes 12 are fixedly provided with filter screens 121 which are flush with the inner wall of the limiting pipe 1. The plugging pipe 2 is slidably arranged on the outer side wall of the limiting pipe 1, and a drain hole 24 corresponding to the water permeable hole 12 is formed in the outer side wall of the plugging pipe 2. A drain pipe 28 is installed at the drain hole 24. The drainage pipe 28 includes a first pipe 281, and a second pipe 282 sleeved outside the first pipe 281, and the first pipe 281 and the second pipe 282 are fixedly connected by a third spring 283. The end of the second pipe 282 is inclined from bottom to top in the direction close to the axis of the second pipe 282, and the outer wall of the second pipe 282 is fitted to the inner wall of the water permeable hole 12.
As shown in fig. 5, a water passage port 21 is opened at the top of the block pipe 2, and the water passage port 21 is sealed by screwing a seal cap 211. The upper end of the blocking pipe 2 is provided with a water pumping port 22 at a position deviating from the water through port 21, the water pumping port 22 is connected with a one-way valve 221, and the one-way valve 221 is connected with a water storage tank 223 through an overflow pipe 222. A second lifting assembly 23 is mounted on top of the blanking pipe 2. The second lifting assembly 23 comprises a first fixing member 231 welded to the top of the plugging pipe 2 and close to the edge of the plugging pipe 2 departing from the limiting pipe 1, and a second fixing member 232 welded to the top of the plugging pipe 2 and symmetrically arranged with the first fixing member 231.
When the plugging device is used, the plugging device is placed into a deep foundation pit, the fixing part 11 is clamped with the sealing part 13, the bottom of the plugging pipe 2 is flush with the bottom of the limiting pipe 1, and the water permeable hole 12 and the water drainage hole 24 are plugged by the sealing part 13. Promote shutoff pipe 2 through second hoisting assembly 23 for hole 12 and wash port 24 stagger of permeating water, the first hoisting assembly 3 of rethread promotes sealing portion 13, breaks away from the joint with fixed part 11, makes intercommunication in hole 12 and the deep basal pit of permeating water. Meanwhile, negative pressure is formed in the cavity below the sealing part 13 in the limiting pipe 1, so that accumulated water in the deep foundation pit can easily flow into the limiting pipe 1. After the sealing part 13 promotes to the settlement height, put the hole bottom with shutoff pipe 2 through second hoisting assembly 23, make the bottom of shutoff pipe 2 and the bottom parallel and level of spacing pipe 1, thereby make wash port 24 align with the hole 12 of permeating water, remove sealing part 13 below again, extrude the ponding in the spacing pipe 1, make ponding get into in the shutoff pipe 2, make the outside inflation of shutoff pipe 2 when the ponding in the shutoff pipe 2 is full of, thereby play the effect of sealed leaking stoppage passageway.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. The utility model provides a deep basal pit plugging device, locates the outside shutoff pipe (2) of spacing pipe (1) including spacing pipe (1), cover, characterized by: the bottom of the limiting pipe (1) is sealed through a fixing part (11); the outer side wall of the limiting pipe (1) close to the fixing part (11) is provided with water permeable holes (12) along the two ends of the limiting pipe (1) in the radial direction; a sealing part (13) attached to the inner wall of the limiting pipe (1) is arranged in the limiting pipe (1); a first lifting component (3) is arranged on the sealing part (13); the top of the plugging pipe (2) is provided with a second lifting assembly (23); when the fixing part (11) is clamped with the sealing part (13), the peripheral side of the fixing part (11) is attached to the water permeable hole (12); the plugging pipe (2) is arranged on the outer side wall of the limiting pipe (1) in a sliding mode, and a drain hole (24) corresponding to the water permeable hole (12) is formed in the outer side wall of the plugging pipe (2); the inner side wall and the top of the plugging pipe (2) close to the limiting pipe (1) are both of fixed plate structures, and the outer side wall and the bottom of the plugging pipe (2) are both made of rubber materials; the inner side wall of the plugging pipe (2) is tightly attached to the outer side wall of the limiting pipe (1); a filter screen (121) which is flush with the inner wall of the limiting pipe (1) is arranged at the water permeable hole (12); the top of the plugging pipe (2) is provided with a water through opening (21); the water passage opening (21) is sealed by a sealing cover (211).
2. The deep foundation pit plugging device according to claim 1, wherein: the upper end surface of the fixing part (11) is provided with a mounting groove (111); the wall of the mounting groove (111) is provided with a first clamping groove (112) towards the direction departing from the axis of the limiting pipe (1) and at two ends of the limiting pipe (1) in the radial direction; the sealing part (13) comprises a first sealing block (131) attached to the inner wall of the limiting pipe (1) and a second sealing block (132) arranged on the lower end face of the first sealing block (131) and matched with the mounting groove (111); a groove (133) is formed in the position, corresponding to the first clamping groove (112), of the second sealing block (132) in the axial direction of the limiting pipe (1); a clamping block (134) is arranged in the groove (133) in a sliding manner; the end part of the clamping block (134) departing from the first clamping groove (112) is connected with the groove (133) through a first spring (135); the end part of the clamping block (134) close to the first clamping groove (112) is obliquely arranged from bottom to top towards the upper end surface and the lower end surface of the clamping block (134).
3. The deep foundation pit plugging device according to claim 2, wherein: a thread groove (136) is formed in the upper end face of the first sealing block (131); the lifting assembly comprises a pull rod (31) in threaded fit with the threaded groove (136) and a pull ring (32) fixed at the upper end of the pull rod (31); the end part of the pull ring (32) departing from the pull rod (31) extends out of the top of the limiting pipe (1).
4. The deep foundation pit plugging device according to claim 1, wherein: a fixing groove (25) is formed in the inner side wall of the blocking pipe (2) and is close to the position above the drain hole (24); a snap ring (26) is arranged in the fixing groove (25) in a sliding manner; the end part of the snap ring (26) departing from the limiting pipe (1) is fixed in the fixing groove (25) through a second spring (27); the end part of the snap ring (26) close to the limiting pipe (1) is obliquely arranged from bottom to top towards the upper end surface and the lower end surface of the snap ring (26); a second clamping groove (14) matched with the clamping ring (26) is formed in the position, close to the upper part of the water permeable hole (12), on the outer side wall of the limiting pipe (1); and a third clamping groove (15) which is arranged at an interval with the second clamping groove (14) is formed in the outer side wall of the limiting pipe (1) and above the second clamping groove (14).
5. The deep foundation pit plugging device according to claim 1, wherein: a drain pipe (28) is arranged at the drain hole (24); the drain pipe (28) comprises a first pipeline (281) and a second pipeline (282) sleeved outside the first pipeline (281); the first pipeline (281) is connected with the second pipeline (282) through a third spring (283); the end part of the second pipeline (282) is obliquely arranged from bottom to top in the direction close to the axis of the second pipeline (282); the outer side wall of the second pipeline (282) is attached to the inner side wall of the water permeable hole (12).
6. The deep foundation pit plugging device according to claim 1, wherein: the upper end of the plugging pipe (2) is provided with a water pumping port (22); the water pumping port (22) is connected with a one-way valve (221); the one-way valve (221) is connected with a water storage tank (223) through an overflow pipe (222).
7. The deep foundation pit plugging device according to claim 1, wherein: the second lifting assembly (23) comprises a first fixing piece (231) which is arranged at the top of the blocking pipe (2) and close to the edge of the blocking pipe (2) departing from the limiting pipe (1), and a second fixing piece (232) which is arranged at the top of the blocking pipe (2) and is spaced from the first fixing piece (231).
8. The deep foundation pit plugging device according to claim 3, wherein: and a limiting plate (311) attached to the inner wall of the limiting pipe (1) is arranged on the pull rod (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921229794.3U CN210597320U (en) | 2019-07-30 | 2019-07-30 | Deep foundation pit plugging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921229794.3U CN210597320U (en) | 2019-07-30 | 2019-07-30 | Deep foundation pit plugging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210597320U true CN210597320U (en) | 2020-05-22 |
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ID=70715794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921229794.3U Active CN210597320U (en) | 2019-07-30 | 2019-07-30 | Deep foundation pit plugging device |
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| Country | Link |
|---|---|
| CN (1) | CN210597320U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113236181A (en) * | 2021-06-09 | 2021-08-10 | 中煤地质集团有限公司 | Water stopping device for water pumping test of exploration well |
-
2019
- 2019-07-30 CN CN201921229794.3U patent/CN210597320U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113236181A (en) * | 2021-06-09 | 2021-08-10 | 中煤地质集团有限公司 | Water stopping device for water pumping test of exploration well |
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