CN212335984U

CN212335984U - Multifunctional drain hole orifice device adaptive to irregular hole wall structure

Info

Publication number: CN212335984U
Application number: CN202020877741.9U
Authority: CN
Inventors: 施华堂; 陈文夫; 蒋红建; 翁永红; 徐年丰; 丁刚; 王克祥; 柏龙君; 肖碧
Original assignee: Wuhan Langwei Geotechnical Engineering Materials Co ltd; Changjiang Institute of Survey Planning Design and Research Co Ltd; China Three Gorges Projects Development Co Ltd CTG
Current assignee: Wuhan Langwei Geotechnical Engineering Materials Co ltd; Changjiang Institute of Survey Planning Design and Research Co Ltd; China Three Gorges Projects Development Co Ltd CTG
Priority date: 2020-05-22
Filing date: 2020-05-22
Publication date: 2021-01-12
Anticipated expiration: 2030-05-22

Abstract

The utility model relates to a multi-functional wash port drill way device of irregular pore wall structure of self-adaptation, this drill way device, including being responsible for, end cover, clamping ring and gland, be responsible for one end tip and be equipped with the end cover, the other end is equipped with the gland, is responsible for and goes up the cover and is equipped with a plurality of clamping rings, and a plurality of clamping rings all set up between end cover and gland, are equipped with the rubber circle and meet water inflation seal ring in turn between the adjacent clamping ring. The utility model discloses solved current drill way device unadaptable irregular pore wall structure, usage single, adaptability weak, the installation inconvenient, the anchor power is not enough, flow area is little, overhaul a series of problems such as inconvenient betterly. Compare with current wash port drill way device, the utility model discloses adapt to various irregular pore wall structures, the stagnant water is effectual, adopts the multichannel to meet water inflation stagnant water ring to replace the elastic glue ring, when meeting the wash port and having water, meets water inflation stagnant water ring and can further fully expand, initiatively packs irregular clearance, guarantees with irregular pore wall in close contact with, the good stagnant water effect of performance.

Description

Multifunctional drain hole orifice device adaptive to irregular hole wall structure

Technical Field

The utility model relates to a hydraulic structure foundation treatment field, concretely relates to multi-functional wash port drill way device of irregular pore wall structure of self-adaptation.

Background

The drain hole is widely applied to dam foundation, side slope and underground cavern engineering of a dam in hydraulic and hydroelectric engineering, and is used for reducing the uplift pressure of the dam foundation, the underground water level of the side slope and the surrounding rock permeability pressure of the underground cavern so as to improve the safety of a building. To collect the seepage water and to guide the drainage centrally, the drainage holes are generally provided with orifice means.

Existing drain hole orifice devices include: the main pipe is provided with an end cover and a hexagonal nut gland in a sleeved mode at two ends of the main pipe respectively, and the end cover and the hexagonal nut gland are provided with a pressing ring and an elastic rubber ring. The existing drain hole orifice devices suffer from the following problems:

1. not suitable for irregular hole wall structure

The construction of the drain hole generally adopts a drill pipe impact type drilling machine (such as a down-the-hole drill) to drill the hole so as to improve the working efficiency. The drill rod impact type drilling machine is composed of a drill rod, a ball tooth drill bit and an impactor, holes are formed by utilizing an impact principle, and compared with a rotary drilling machine, the drill rod impact type drilling machine is high in efficiency, but the hole wall of a drilled hole is not smooth and irregular. The conventional orifice device extrudes the elastic rubber ring through the gland, so that the orifice device is firmly fixed, but because the hole wall is irregular and the deformation capacity of the elastic rubber ring is extremely limited, the phenomenon of water leakage from the contact surface of the orifice device and the hole wall often exists after the orifice device is installed, and the orifice device is forced to adopt measures such as orifice mortar plugging and the like to stop the leakage.

2. Single use and weak adaptability

The orifice device of the drain hole mainly plays the roles of collecting seepage water and intensively leading and draining. Conventional orifice devices are not suitable for use in some projects where the need to measure the osmotic pressure or control the amount of water displaced is present. In addition, the orifice protection length of the conventional orifice device is fixed, and if the orifice device length needs to be changed, the mold needs to be adjusted and reworked.

3. Inconvenient installation and insufficient anchoring force

Conventional drill way device is screwed gland hexagonal screw through the spanner and is exerted compressive stress, and thick tooth screw locking effect is poor, leads to anchoring force not enough easily.

4. Small flow aperture and inconvenient maintenance

The hexagonal nut type locking gland is adopted, so that the circulation diameter of the drainage tube body is limited, silting is easy to occur, and observation and treatment are not convenient. In addition, after the water leakage condition of the contact surface of the conventional orifice device adopts measures such as mortar plugging and the like to stop the leakage, the orifice device loses the functions of disassembly, inspection and the like.

SUMMERY OF THE UTILITY MODEL

For solving the above problem, the utility model provides a multi-functional wash port drill way device of irregular pore wall structure of self-adaptation is applicable to dam foundation, side slope and underground cavern wash port construction, can irregular pore wall structure of self-adaptation, and the function is comprehensive, and the installation is simple and convenient with the maintenance.

The utility model adopts the technical proposal that: the utility model provides a multi-functional wash port drill way device of irregular pore wall structure of self-adaptation, includes and is responsible for, end cover, clamping ring and gland, be responsible for one end tip and be equipped with the end cover, the other end is equipped with gland, its characterized in that: be responsible for and go up the cover and be equipped with a plurality of clamping rings, it is a plurality of the clamping ring all sets up between end cover and gland, and is adjacent be equipped with rubber circle and water-swelling seal ring in turn between the clamping ring.

Preferably, a pipe joint is sleeved outside the end part of the main pipe close to one end of the pressing cover, and the pressing cover and the pipe joint are both connected with the main pipe through threads.

Furthermore, the main pipe is connected with a reducing elbow through a pipe joint, and the rear part of the reducing elbow is connected with a straight pipe; the middle part of the straight pipe is sequentially connected with a pressure gauge and a flow control valve, and the tail end of the straight pipe is connected with a hose or an elbow.

Preferably, the gland is provided with a threaded hole for clamping a wrench.

Preferably, the end cover and the main pipe are in an integral molding structure.

Preferably, the hole diameter of the drain hole is 91 mm.

Furthermore, one end of the main pipe close to the gland is provided with fine threads, and the length of the fine threads is 500 mm; the outer diameter of the main pipe is 63mm, and the inner diameter of the main pipe is 48 mm.

Furthermore, the outer diameter of the gland is 130mm, and the inner diameter is 63 mm; the external diameter of the threaded pipe joint is 90mm, and the internal diameter is 63 mm.

Furthermore, the outer diameter of the rubber ring is 91mm, and the inner diameter of the rubber ring is 63 mm; the outer diameter of the pressing ring is 90mm, and the inner diameter of the pressing ring is 63 mm.

Furthermore, the cross section of the water-swelling water stop ring is rectangular or O-shaped, and the inner diameter of the water-swelling water stop ring is 63 mm.

The utility model discloses the beneficial effect who gains is: the utility model discloses solved current drill way device unadaptable irregular pore wall structure, usage single, adaptability weak, the installation inconvenient, the anchor power is not enough, flow area is little, overhaul a series of problems such as inconvenient betterly. Compared with the prior drain hole orifice device, the device has the following outstanding advantages:

(1) is suitable for various irregular hole wall structures and has good water stopping effect

The elastic rubber ring belongs to vulcanized rubber, has limited compression deformation capacity and cannot meet the water stop requirement of an irregular hole wall structure. A plurality of water swelling water stop rings are adopted to replace elastic rubber rings, force is applied through a gland during installation, and the effect is basically consistent with that of the elastic rubber rings; when water is in the drain hole, the water-swelling stop ring can further fully swell when meeting water, and an irregular gap is actively filled, so that the water-swelling stop ring is ensured to be in close contact with an irregular hole wall, and a good water-stopping effect is achieved.

(2) Simplify drilling machines and tools, improve the efficiency of construction

The device has low requirement on the wall of the drain hole, does not need to adopt a rotary drilling machine (such as a geological drill) to form the hole, adopts an impact drilling machine to form the hole, and greatly improves the construction efficiency.

(3) Strong adaptability and more comprehensive functions

The device is assembled on site by parts, the length of a main pipe can be properly adjusted according to different requirements, the number of the rubber rings, the compression rings and the water swelling water stop rings can be flexibly used according to the protection depth of each project, and the length of the exposed section does not influence the use function of a product, so that the device can meet the requirements of different protection depths and change the problem of limited length of an original mold forming mode. Compared with the conventional orifice device, the flow control valve and the pressure gauge are additionally arranged, so that the device can meet the requirements of osmotic pressure observation and flow control.

(4) Simple installation, firmness and reliability

The main pipe adopts the design of fine thread, adds the screw hole on the gland to exert torsion through "L" type hook spanner to the gland, the installation is laborsaving and more firm. In addition, when the drain hole has water, the water swelling seal ring fully swells when meeting water, and higher anchoring force can be provided.

(5) Convenient maintenance

Because the restriction of the hexagonal nut gland of the traditional orifice device on the flow aperture is changed, the flow area is greatly improved, the silting phenomenon can be effectively relieved, and the silting problem is easier to observe and treat.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a gland structure;

FIG. 3 is a schematic view of the wrench;

FIG. 4 is a schematic view of an orifice device installation;

reference numerals: 1. a main pipe; 2. an end cap; 3. a gland; 31. a threaded hole; 4. pressing a ring; 5. a rubber ring; 6. a water stop ring expanding when encountering water; 7. a pipe joint; 8. a reducing elbow; 9. clamping; 10. a straight pipe; 11. a pressure gauge; 12. a flow control valve; 13. buckling; 14. a hose; 15. a water filter pipe; 100. lining concrete; 200. a drainage ditch; 300. and (5) bottom plate concrete.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1-3, the utility model discloses a multi-functional wash port drill way device of irregular pore wall structure of self-adaptation, including being responsible for 1, end cover 2, clamping ring 4, gland 3, rubber circle 5 and meeting water inflation seal ring 6, end cover 2 adopts whole shaping with being responsible for 1, and end cover 2 sets up at being responsible for 1 one end tip, and the other end of being responsible for 1 is equipped with thin thread, and 3 inner circles of gland are equipped with the internal thread, and gland 3 screw in is responsible for 1 one end that has thin thread, is connected with being responsible for 1 through the screw thread. Be equipped with a plurality of clamping rings 4 (totally be equipped with 6 clamping rings in fig. 1) between end cover 2 and gland 3, a plurality of clamping rings 4 are all established on being responsible for 1, are equipped with rubber circle 5 and meet water inflation seal ring 5 between the adjacent clamping ring 4 in turn. The compression ring 4, the rubber ring 5 and the water swelling water stop ring 5 are combined into an integral sealing structure, one end of the integral sealing structure is tightly attached to the end cover 2, and the other end of the integral sealing structure is tightly attached to the gland 3; will the utility model discloses a wash port drill way device integral erection is after the wash port drill way goes out, and when meeting the wash port and having water, meet water inflation seal ring 5 and can further fully expand, and irregular clearance is clogged in the initiative, guarantees with irregular pore wall in close contact with, the good stagnant water effect of performance.

In this embodiment, a pipe joint 7 is sleeved outside an end portion of the main pipe 1 close to the end of the pressing cover 3, and the pipe joint 7 is connected with the main pipe 1 through a thread. Referring to fig. 4, a main pipe 1 is connected with a plastic reducing elbow 8 through a pipe joint 7, and the reducing elbow 8 is connected with a plastic straight pipe 10 after passing through a plastic clamp 9; the middle part of the plastic straight pipe 10 is sequentially connected with a pressure gauge 11 and a flow control valve 12, and the tail end of the plastic straight pipe is connected with a hose 14 or an elbow to guide and discharge the seepage water into the drainage ditch 200. The pipe can bear 2.0 times of the maximum water seepage pressure, and the measuring range of the pressure gauge 11 is not less than 2.0 times of the maximum water seepage pressure. Compared with the conventional orifice device, the flow control valve 12 and the pressure gauge 11 are additionally arranged, so that the requirements of osmotic pressure observation and flow control can be met. The main pipe 1 is provided with a MY system plastic water filter pipe at one end close to the end cover 2, so that the main pipe 1 is prevented from being blocked.

In this embodiment, the pressing cover 3 is provided with a threaded hole 31 for clamping a wrench. With reference to fig. 2 and 3, the L-shaped hook wrench applies torque to the gland, so that the installation is labor-saving and firmer.

In the embodiment, the aperture of the drain hole is 91mm, the main pipe 1, the end cover 2 and the pressure ring 3 are all made of hard UPVC, and the main pipe 1 is 500mm in length, 63mm in outer diameter and 48mm in inner diameter; the outer diameter of the gland 2 is 130mm, and the inner diameter is 63 mm; the outer diameter of the pipe joint 7 is 90mm, and the inner diameter is 63 mm; the outer diameter of the rubber ring 5 is 91mm, and the inner diameter is 63 mm; the outer diameter of the compression ring 4 is 90mm, and the inner diameter is 63 mm; the cross section of the water swelling water stop ring 6 is rectangular or O-shaped, and the inner diameter is 63 mm.

The utility model discloses an installation and work progress of drill way device do:

1. drilling a drain hole: before the drain hole is constructed, the position, the direction, the aperture and the hole depth of the drilled hole of the drain hole are confirmed according to the requirements of construction drawings. And drilling the whole hole of the drain hole by adopting an impact drill (such as a down-the-hole drill), and flushing the drilled hole by using large-flow water flow after the drilling is finished.

2. Assembling an orifice device: the rubber ring 5, the compression ring 4 and the water-swelling water stop ring 6 are sequentially assembled on the main pipe 1, and the number of the rubber ring 5, the compression ring 4 and the water-swelling water stop ring 6 can be adjusted according to the actual requirement of the orifice protection length. After the last group of rubber rings 5, the compression ring 4 and the water-swelling water stop ring 6 are installed, the pressing cover 3 and the threaded pipe joint 7 are continuously installed on the main pipe 1.

3. Installing an orifice device: force is applied to the threaded hole 31 in the gland 3 by an "L" shaped hook wrench until the orifice device is installed securely.

4. The flow control valve 11 and the pressure gauge 12 are installed: the top of the orifice device main pipe 1 is provided with a plastic reducing elbow 8 (can also be a common elbow, the model of the elbow is selected according to the pipe diameter of a pipeline), the reducing elbow 8 is connected with a plastic straight pipe 10, the middle part of the straight pipe 10 is sequentially connected with a pressure gauge 11 and a flow control valve 12, and the tail end of the straight pipe 10 is connected with a plastic hose 14 or an elbow to guide and discharge seepage water into the drainage ditch 200.

The foregoing shows and describes the general principles and principal structural features of the invention. The present invention is not limited by the above-mentioned examples, and the present invention can be modified in various ways without departing from the spirit and scope of the present invention, and these modifications and improvements fall within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a multi-functional wash port drill way device of irregular pore wall structure of self-adaptation, includes and is responsible for, end cover, clamping ring and gland, be responsible for one end tip and be equipped with the end cover, the other end is equipped with gland, its characterized in that: be responsible for and go up the cover and be equipped with a plurality of clamping rings, it is a plurality of the clamping ring all sets up between end cover and gland, and is adjacent be equipped with rubber circle and water-swelling seal ring in turn between the clamping ring.

2. The adaptive irregular pore wall structure multifunctional drain orifice device of claim 1, wherein: the end part of the main pipe close to one end of the gland is sleeved with a pipe joint, and the gland and the pipe joint are connected with the main pipe through threads.

3. The adaptive irregular pore wall structure multifunctional drain orifice device of claim 2, wherein: the main pipe is connected with a reducing elbow through a pipe joint, and the rear part of the reducing elbow is connected with a straight pipe; the middle part of the straight pipe is sequentially connected with a pressure gauge and a flow control valve, and the tail end of the straight pipe is connected with a hose or an elbow.

4. The adaptive irregular pore wall structure multifunctional drain orifice device of claim 1, wherein: and the gland is provided with a threaded hole for clamping a wrench.

5. The adaptive irregular pore wall structure multifunctional drain orifice device of claim 1, wherein: the end cover and the main pipe are of an integrally formed structure.

6. The adaptive irregular pore wall structure multifunctional drain orifice device of claim 1, wherein: the hole diameter of the drain hole is 91 mm.

7. The adaptive irregular pore wall structure multifunctional drain orifice device of claim 6, wherein: one end of the main pipe close to the gland is provided with fine threads, and the length of the main pipe is 500 mm; the outer diameter of the main pipe is 63mm, and the inner diameter of the main pipe is 48 mm.

8. The adaptive irregular aperture wall structured multi-functional drain hole orifice device of claim 7, wherein: the outer diameter of the gland is 130mm, and the inner diameter is 63 mm; the external diameter of the threaded pipe joint is 90mm, and the internal diameter is 63 mm.

9. The adaptive irregular aperture wall structured multi-functional drain hole orifice device of claim 7, wherein: the outer diameter of the rubber ring is 91mm, and the inner diameter of the rubber ring is 63 mm; the outer diameter of the pressing ring is 90mm, and the inner diameter of the pressing ring is 63 mm.

10. The adaptive irregular aperture wall structured multi-functional drain hole orifice device of claim 7, wherein: the cross section of the water swelling water stop ring is rectangular or O-shaped, and the inner diameter is 63 mm.