CN216718133U

CN216718133U - Measuring device for orifice of drain hole

Info

Publication number: CN216718133U
Application number: CN202123105442.7U
Authority: CN
Inventors: 刘玉轩; 彭帅; 王海东; 金霞
Original assignee: Sinohydro Bureau 8 Co Ltd
Current assignee: Sinohydro Bureau 8 Co Ltd
Priority date: 2021-12-06
Filing date: 2021-12-06
Publication date: 2022-06-10
Anticipated expiration: 2031-12-06

Abstract

The utility model discloses a measuring device for a hole opening of a drain hole, which comprises a jack pipe, an extrusion expansion sleeve, an extrusion screwing piece and a pressure gauge, wherein one end of the jack pipe is provided with a stop head, the other end of the jack pipe is provided with a diversion mechanism, the extrusion screwing piece is sleeved on the jack pipe and is in threaded connection with the jack pipe, the extrusion expansion sleeve is sleeved on the jack pipe and is positioned between the extrusion screwing piece and the stop head, and the pressure gauge is arranged on the diversion mechanism. The device for measuring the orifice of the drain hole has the advantages of simple structure, convenient operation and capability of directly measuring the osmotic pressure.

Description

Drain hole orifice measuring device

Technical Field

The utility model relates to the technical field of hydroelectric engineering, in particular to a measuring device for a hole opening of a drain hole.

Background

After the construction of the basic drainage hole of the hydraulic and hydroelectric engineering is finished, in the process of engineering operation, particularly when the water level of a reservoir changes in the processes of water storage, water drainage and the like, the seepage pressure and seepage flow data of the drainage hole need to be collected, the law of the engineering basic seepage field is known, and the law can also be used as the basis for determining the basic seepage control scheme. The traditional orifice device of the drain hole is a rubber plug connected with a water conduit, and can only guide seepage water into a drainage ditch, so that seepage pressure and seepage flow data of the drain hole cannot be directly obtained, and other measures are needed if the seepage pressure and seepage flow data are needed, so that the field operation is inconvenient, and the working efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide a drainage hole orifice measuring device which is simple in structure, convenient to operate and capable of directly measuring the seepage pressure.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a wash port drill way measuring device, includes that jack pipe, extrusion inflation cover, extrusion revolve wrong piece and manometer, the one end of jack pipe is equipped with the fender head, and the other end is equipped with diversion mechanism, the extrusion revolves wrong piece cover locate on the jack pipe and with jack pipe threaded connection, the extrusion inflation cover is located on the jack pipe and is located the extrusion revolve wrong piece and between the fender head, the manometer is located on diversion mechanism.

As a further improvement of the above technical solution:

the water diversion mechanism comprises a tee joint and a water diversion pipe, one connector of the tee joint is connected with the jack pipe, and the other two connectors are respectively connected with the pressure gauge and the water diversion pipe.

And a valve is arranged between the water conduit and the tee joint.

The water diversion pipe is a hose, a threaded pipe is arranged at one end of the water diversion pipe, and the threaded pipe is in threaded connection with the valve.

The tee joint is connected with the jack pipe through a reducer union.

The pipe diameter of the tee joint is smaller than that of the jack pipe.

The pressure gauge is connected with the tee joint through threads.

The jack pipe outer cover is equipped with the extrusion packing ring, the extrusion packing ring is located between extrusion inflation cover and the extrusion piece of screwing.

The blocking head is in threaded connection with the jack pipe.

And the water diversion mechanism is provided with a flowmeter.

Compared with the prior art, the utility model has the advantages that:

when the measuring device for the orifice of the drain hole is used, one end of the jack pipe, which is provided with the resisting head, is inserted into the orifice of the drain hole. And then, screwing the extrusion screwing piece, and under the extrusion action of the extrusion screwing piece and the resisting head, deforming the extrusion expansion sleeve outwards to be tightly propped against the inner wall of the drain hole, so that the fixation of the jack pipe and the sealing of the orifice of the drain hole are realized. Then, the water in the drain hole flows into the water diversion mechanism through the jack pipe, and a pressure gauge on the water diversion mechanism measures the water pressure value in real time so as to realize the measurement of the osmotic pressure of the drain hole. The device for measuring the orifice of the drain hole has the advantages of simple structure, convenient operation and capability of directly measuring the osmotic pressure.

According to the device for measuring the orifice of the drain hole, the extrusion gasket is sleeved outside the jack pipe and is positioned between the extrusion expansion sleeve and the extrusion screwing piece. The extrusion screwing piece presses the extrusion expansion sleeve through the extrusion gasket, so that the pressing area is increased, and a better pressing effect is achieved.

According to the device for measuring the orifice of the drain hole, the resisting head is in threaded connection with the jack pipe. The replacement of the resisting heads with different diameters is convenient, so that the water discharging hole openings with different sizes are adapted, and the extrusion expansion sleeve is convenient to take out and mount from the end of the jack pipe 1.

Drawings

FIG. 1 is a schematic view of the structure of the drainage hole orifice measuring device of the present invention.

FIG. 2 is a view showing the state of use of the drainage hole orifice measuring device of the present invention.

The reference numerals in the figures denote:

1. a jack tube; 2. extruding the expansion sleeve; 3. extruding the screw; 31. extruding the gasket; 4. a pressure gauge; 5. a stop head; 6. a water diversion mechanism; 61. a tee joint; 62. a water conduit; 621. a threaded pipe; 7. a valve; 8. a reducer union; 9. a flow meter.

Detailed Description

The utility model will be described in further detail below with reference to the drawings and specific examples.

Fig. 1 and 2 show an embodiment of a measurement device for an orifice of a drain hole according to the present invention, which includes a jack pipe 1, an extrusion expansion sleeve 2, an extrusion screwing member 3, and a pressure gauge 4, wherein one end of the jack pipe 1 is provided with a stopper 5, the other end is provided with a water diversion mechanism 6, the extrusion screwing member 3 is sleeved on the jack pipe 1 and is in threaded connection with the jack pipe 1, the extrusion expansion sleeve 2 is sleeved on the jack pipe 1 and is located between the extrusion screwing member 3 and the stopper 5, and the pressure gauge 4 is provided on the water diversion mechanism 6.

In use, as shown in fig. 2, the end of the jack pipe 1 provided with the stopper 5 is inserted into the orifice of the drain hole. And then, screwing the extrusion screwing piece 3, and under the extrusion action of the extrusion screwing piece 3 and the resisting head 5, deforming the extrusion expansion sleeve 2 outwards to be tightly propped against the inner wall of the drain hole, so that the fixing of the jack pipe 1 and the sealing of the orifice of the drain hole are realized. Then, the water in the drain hole flows into the water diversion mechanism 6 through the jack pipe 1, and the pressure gauge 4 on the water diversion mechanism 6 measures the water pressure value in real time so as to realize the measurement of the osmotic pressure of the drain hole. The device for measuring the orifice of the drain hole has the advantages of simple structure, convenient operation and capability of directly measuring the osmotic pressure.

In this embodiment, the diversion mechanism 6 includes a tee 61 and a diversion pipe 62, one connector of the tee 61 is connected with the jack pipe 1, and the other two connectors are respectively connected with the pressure gauge 4 and the diversion pipe 62. Specifically, the tee 61 is made of plastic.

In this embodiment, a valve 7 is disposed between the water conduit 62 and the tee 61. The valve 7 is closed, and the seepage pressure can be directly read after the pointer of the pressure gauge 4 is stabilized. Simple structure and convenient operation.

In this embodiment, the water conduit 62 is a hose, and a threaded pipe 621 is disposed at one end of the water conduit 62, and the threaded pipe 621 is in threaded connection with the valve 7. Is convenient to be disassembled and replaced.

In this embodiment, the tee 61 is connected to the socket pipe 1 through a reducer joint 8. The diameter of the tee 61 is smaller than that of the jack pipe 1.

In this embodiment, the pressure gauge 4 is connected to the tee 61 by a screw. Is convenient to be disassembled and replaced.

In this embodiment, the plug pipe 1 is externally sleeved with a compression washer 31, and the compression washer 31 is located between the compression expansion sleeve 2 and the compression screw 3. The extrusion screwing piece 3 is pressed against the extrusion expansion sleeve 2 through the extrusion gasket 31, so that the pressing area is increased, and a better pressing effect is achieved.

In this embodiment, the retaining head 5 is connected to the jack pipe 1 by a screw thread. The replacement of the resisting heads 5 with different diameters is convenient, so that the water discharging hole orifices with different sizes are adapted, and the extrusion expansion sleeve 2 is convenient to take out and mount from the end of the jack pipe 1.

In this embodiment, the diversion mechanism 6 is provided with a flowmeter 9. The valve 7 is opened and the seepage flow through is measured by the flow meter 9. Simple structure and convenient operation.

The jack pipe 1 is a plastic pipe with the diameter of 50mm, and the extrusion expansion sleeve 2 is of a rubber structure.

The extrusion expansion sleeve 2 is extruded by rotating the extrusion screwing piece 3, so that the extrusion expansion sleeve 2 is tightly combined with the hole wall to avoid water seepage, and the jack tube 1 is arranged at the orifice of the drain hole; after the valve 7 is closed, a closed environment is formed in the hole, and after the pointer of the pressure gauge 4 is stabilized, the seepage pressure of the drain hole can be directly obtained. The valve 7 can adjust the seepage rate of the drain holes, and observe the seepage and seepage pressure data changes of other drain holes by controlling and adjusting the seepage rate of one or a part of the drain holes so as to research the relevance of the seepage rate and the seepage pressure among the drain holes.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make numerous possible variations and modifications to the present invention, or modify equivalent embodiments to equivalent variations, without departing from the scope of the utility model, using the teachings disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.

Claims

1. A drain hole orifice measuring device, characterized by: including jack pipe (1), extrusion inflation cover (2), extrusion revolve wrong piece (3) and manometer (4), the one end of jack pipe (1) is equipped with keeps off head (5), and the other end is equipped with diversion mechanism (6), the extrusion revolves wrong piece (3) cover to locate on jack pipe (1) and with jack pipe (1) threaded connection, extrusion inflation cover (2) cover is located on jack pipe (1) and is located the extrusion and revolves wrong piece (3) and keep off between head (5), manometer (4) are located on diversion mechanism (6).

2. A drain hole orifice measuring device according to claim 1, wherein: the water diversion mechanism (6) comprises a tee joint (61) and a water diversion pipe (62), one connector of the tee joint (61) is connected with the jack pipe (1), and the other two connectors are respectively connected with the pressure gauge (4) and the water diversion pipe (62).

3. A drain hole orifice measuring device according to claim 2, wherein: a valve (7) is arranged between the water conduit (62) and the tee joint (61).

4. The drain hole orifice measuring device of claim 3, wherein: the water conduit (62) is a hose, a threaded pipe (621) is arranged at one end of the water conduit (62), and the threaded pipe (621) is in threaded connection with the valve (7).

5. A drain hole orifice measuring device according to claim 2, wherein: the tee joint (61) is connected with the jack pipe (1) through a reducing joint (8).

6. The drain hole orifice measuring device of claim 5, wherein: the pipe diameter of the tee joint (61) is smaller than that of the jack pipe (1).

7. A drain hole orifice measuring device according to claim 2, wherein: the pressure gauge (4) is in threaded connection with the tee joint (61).

8. The drain hole orifice measuring device according to any one of claims 1 to 7, wherein: the jack pipe (1) overcoat is equipped with extrusion packing ring (31), extrusion packing ring (31) are located extrusion expansion cover (2) and extrude to revolve between twisting member (3).

9. The drain hole orifice measuring device according to any one of claims 1 to 7, wherein: the blocking head (5) is in threaded connection with the jack pipe (1).

10. The drain hole orifice measuring device according to any one of claims 1 to 7, wherein: and a flowmeter (9) is arranged on the water diversion mechanism (6).