CN218177287U - Coal seam roof pressure measuring device - Google Patents
Coal seam roof pressure measuring device Download PDFInfo
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- CN218177287U CN218177287U CN202220581680.0U CN202220581680U CN218177287U CN 218177287 U CN218177287 U CN 218177287U CN 202220581680 U CN202220581680 U CN 202220581680U CN 218177287 U CN218177287 U CN 218177287U
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Abstract
The utility model provides a coal seam roof pressure measuring device, which comprises a testing tube, wherein a pressure gauge is fixed at the bottom end of the testing tube, and a hole is formed in the side surface of the top of the testing tube; the water blocking piece is of a boss type structure and is arranged in the test tube, the water blocking piece is hollow, a through hole is formed in the top surface of the water blocking piece, the through hole is communicated with the inside of the water blocking piece, the bottom edge of the water blocking piece is fixed with the inner wall of the test tube, a water accumulating groove is formed by the side wall of the water blocking piece, the bottom edge of the water blocking piece and the inner wall of the test tube, the top of the water blocking piece extends upwards, and the top of the water blocking piece is higher than the inlet hole; the drain pipe is fixedly penetrated through the surface of the test pipe, and the inlet end of the drain pipe is communicated with the water accumulating tank; through setting up the manger plate piece in the test tube, the manger plate piece lateral wall, manger plate piece end along and test tube inner wall constitute the ponding groove, and the infiltration water that gets into in the test tube collects in the ponding groove, discharges through the drain pipe, has avoided in solution type chemical slurry solidifies the waiting period, in the infiltration water gets into the manometer.
Description
Technical Field
The utility model relates to a ressure measurement technical field especially relates to coal seam roof pressure measurement device.
Background
The coal mine underground gas pressure measurement work is particularly important for the gas control work, and the coal seam gas pressure must be accurately measured to provide technical support for the gas control work. However, under the condition of water enrichment of the coal seam roof, roof water often enters the pressure measurement drill hole through surrounding rock cracks, and the pressure measurement drill hole is filled with seepage water.
When the existing pressure measuring device is placed in a measuring hole and the measuring hole is sealed by the solidification of the solution type chemical slurry, the seepage water also enters the measuring pipe and enters the pressure gauge, and the gas pressure in the hole cannot be accurately measured.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to prior art's not enough, provide coal seam roof pressure measurement device.
The utility model discloses a following technical means realizes solving above-mentioned technical problem: the coal seam roof pressure measuring device comprises a test tube, a pressure gauge is fixed at the bottom end of the test tube,
the inlet hole is formed in the side face of the top of the test tube;
the water blocking piece is of a boss type structure and is arranged in the test tube, the water blocking piece is hollow, a through hole is formed in the top surface of the water blocking piece, the through hole is communicated with the inside of the water blocking piece, the bottom edge of the water blocking piece is fixed with the inner wall of the test tube, a water accumulating groove is formed by the side wall of the water blocking piece, the bottom edge of the water blocking piece and the inner wall of the test tube, the top of the water blocking piece extends upwards, and the top of the water blocking piece is higher than the inlet hole;
and the drain pipe is fixedly arranged on the surface of the test pipe in a penetrating way, and the inlet end of the drain pipe is communicated with the water accumulating tank.
Furthermore, an arc-shaped water retaining cover is arranged at the inlet of the inlet hole in a broken mode and fixed on the outer surface of the test tube.
Furthermore, the water blocking piece comprises inside cavity and both ends open-ended adapter sleeve, top ring of connection at adapter sleeve top opening department and the end ring of fixing edge at the bottom of the adapter sleeve surface, the end ring is outer along fixed with the test tube inner wall, end ring, adapter sleeve and test tube inner wall constitute ponding groove, the through-hole rather than having a perfect understanding is seted up at the adapter sleeve top.
Furthermore, the outer surface of the connecting sleeve is inclined, and the opening at the top of the connecting sleeve is smaller than the opening at the bottom of the connecting sleeve.
Furthermore, a valve is arranged at the outlet end of the drain pipe.
Further, the ball valve is fixedly arranged at one end, close to the pressure gauge, of the testing pipe in a penetrating mode, and the baffle ring is fixedly arranged at the top, close to the testing pipe in a penetrating mode.
The utility model has the advantages that:
through setting up the manger plate piece in the test tube, the manger plate piece lateral wall, manger plate piece end are followed and test tube inner wall constitute the ponding groove, and the infiltration water that gets into in the test tube collects in the ponding groove, discharges through the drain pipe, and the downthehole gas of survey continues to move down to the test tube bottom through the through-hole, tests its pressure by the manometer, has avoided in solution type chemical grout solidifies the latency period, and the infiltration water gets into in the manometer.
Drawings
FIG. 1 is a schematic structural view of a pressure measuring device according to the present invention;
FIG. 2 is a schematic view of a part of the internal structure of the pressure measuring device of the present invention;
fig. 3 is a schematic view of the water blocking member of the present invention.
In the figure: 1. a test tube; 2. a baffle ring; 3. a ball valve; 4. a pressure gauge; 5. a drain pipe; 6. a valve; 7. a water retaining cover; 8. an access hole; 9. a water blocking member; 91. connecting sleeves; 92. a top ring; 93. a bottom ring; 10. a through hole; 11. a water accumulation tank.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Examples
Referring to fig. 1, the coal seam roof pressure measuring device of the embodiment includes a circular testing tube 1, a pressure gauge 4 is fixed at the bottom end of the testing tube 1, a ball valve 3 is fixedly arranged at one end of the testing tube 1 close to the pressure gauge 4, and a baffle ring 2 is fixedly arranged at the top end of the testing tube 1 close to the ball valve.
When the test tube is used, the test tube 1 is placed in a measuring hole drilled in advance, then the test tube is matched with grouting equipment, solution type chemical slurry is injected on the surface of the baffle ring 2, and the joint of the baffle ring 2 and the measuring hole is sealed.
For when solution type chemical grout solidifies, the infiltration water gets into test tube 1 in, set up the manhole 8 in test tube 1 top side, as shown in fig. 2, in order to reduce the infiltration water and get into manhole 8, set up arc manger plate cover 7 in 8 import departments top absolutely of manhole, manger plate cover 7 is fixed at test tube 1 surface, manger plate cover 7 can reduce the infiltration water and get into when manhole 8, when stretching into the survey hole with test tube 1 again, still can obstruct survey downthehole debris and get into in the manhole 8.
In order to collect the seepage water entering the test tube 1 and prevent the seepage water from flowing into the pressure gauge 4, a boss type structure water retaining piece 9 is arranged on the test tube 1, as shown in fig. 3, the water retaining piece 9 is hollow inside, a through hole 10 is formed in the top surface of the water retaining piece, the through hole 10 is communicated with the inside of the water retaining piece, the bottom edge of the water retaining piece 9 is fixed to the inner wall of the test tube 1, the side wall of the water retaining piece 9, the bottom edge of the water retaining piece 9 and the inner wall of the test tube 1 form a water accumulating groove 11, the water accumulating groove 11 collects the seepage water entering the test tube 1, a drain pipe 5 is fixedly arranged on the surface of the test tube 1 in a penetrating mode, the inlet end of the drain pipe 5 is communicated with the water accumulating groove 11, and the seepage water in the water accumulating groove 11 is discharged through the drain pipe 5.
And prevents the water reservoir 11 from being filled with permeate water and continuing into the test tube 1 from its top, the water stop 9 extending upwardly from its top, above the inlet opening 8, as shown in figure 2.
As shown in fig. 3, specifically, the water blocking member 9 is composed of a hollow connecting sleeve 91 with two open ends, a top ring 92 connected to the open end of the top of the connecting sleeve 91, and a bottom ring 93 fixed to the bottom edge of the outer surface of the connecting sleeve 91, the outer edge of the bottom ring 93 is fixed to the inner wall of the test tube 1, the bottom ring 93, the connecting sleeve 91 and the inner wall of the test tube 1 form a water collecting tank 11, and the top of the connecting sleeve 91 is provided with a through hole 10 communicated with the connecting sleeve 91.
During the use, the infiltration water that gets into in the test tube 1 collects in ponding groove 11, discharges through drain pipe 5, and the gas in the survey hole continues to move down to the bottom in the test tube 1 through-hole 10, tests its pressure by manometer 4, has avoided during solution type chemical grout solidification latency period, infiltration water gets into in manometer 4.
Referring to fig. 2, the outer surface of the connection sleeve 91 is inclined, and the top opening of the connection sleeve 91 is smaller than the bottom opening thereof, so that the inclined arrangement maximizes the volume of the water collecting tank 11.
Referring to fig. 1, a valve 6 is arranged at the outlet end of the drain pipe 5, and when the drain is not needed, the valve 6 is closed, so that the sealing performance of the measuring hole can be guaranteed.
It is noted that, in this document, relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (6)
1. Coal seam roof pressure measurement device, including test tube (1), test tube (1) bottom mounting has manometer (4), its characterized in that:
the inlet hole (8) is formed in the side face of the top of the test tube (1);
the water blocking piece (9) is of a boss type structure and is arranged in the test tube (1), the interior of the water blocking piece (9) is hollow, a through hole (10) is formed in the top surface of the water blocking piece, the through hole (10) is communicated with the interior of the water blocking piece, the bottom edge of the water blocking piece (9) is fixed with the inner wall of the test tube (1), the side wall of the water blocking piece (9), the bottom edge of the water blocking piece (9) and the inner wall of the test tube (1) form a water accumulating groove (11), the top of the water blocking piece (9) extends upwards, and the top of the water blocking piece (9) is higher than the inlet hole (8);
the drain pipe (5) is fixedly arranged on the surface of the test pipe (1) in a penetrating mode, and the inlet end of the drain pipe (5) is communicated with the water accumulating tank (11).
2. The coal seam roof pressure measuring apparatus according to claim 1, wherein: an arc-shaped water retaining cover (7) is arranged at the top end of the inlet hole (8), and the water retaining cover (7) is fixed on the outer surface of the test tube (1).
3. The coal seam roof pressure measuring apparatus according to claim 1, wherein: keep off water spare (9) by inside cavity and both ends open-ended adapter sleeve (91), connect top ring (92) at adapter sleeve (91) top opening part and fix and constitute at end ring (93) of edge at the bottom of adapter sleeve (91) surface, end ring (93) are outer along with test pipe (1) inner wall fixed, end ring (93), adapter sleeve (91) and test pipe (1) inner wall constitute ponding groove (11), through-hole (10) rather than having a perfect understanding are seted up at adapter sleeve (91) top.
4. The coal seam roof pressure measuring apparatus according to claim 3, wherein: the outer surface of the connecting sleeve (91) is inclined, and the opening at the top of the connecting sleeve (91) is smaller than the opening at the bottom of the connecting sleeve.
5. The coal seam roof pressure measuring apparatus according to claim 1, wherein: and a valve (6) is arranged at the outlet end of the water drainage pipe (5).
6. The coal seam roof pressure measuring apparatus according to claim 1, wherein: the ball valve (3) is fixedly arranged at one end, close to the pressure gauge (4), of the testing pipe (1), and the blocking ring (2) is fixedly arranged at the top, close to the testing pipe (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220581680.0U CN218177287U (en) | 2022-03-16 | 2022-03-16 | Coal seam roof pressure measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220581680.0U CN218177287U (en) | 2022-03-16 | 2022-03-16 | Coal seam roof pressure measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218177287U true CN218177287U (en) | 2022-12-30 |
Family
ID=84605745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220581680.0U Active CN218177287U (en) | 2022-03-16 | 2022-03-16 | Coal seam roof pressure measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218177287U (en) |
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2022
- 2022-03-16 CN CN202220581680.0U patent/CN218177287U/en active Active
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