CN115077786A - Magnetic force exhaust formula pressure-measuring pipe - Google Patents
Magnetic force exhaust formula pressure-measuring pipe Download PDFInfo
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- CN115077786A CN115077786A CN202210758721.3A CN202210758721A CN115077786A CN 115077786 A CN115077786 A CN 115077786A CN 202210758721 A CN202210758721 A CN 202210758721A CN 115077786 A CN115077786 A CN 115077786A
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- 238000009434 installation Methods 0.000 claims abstract description 86
- 238000007789 sealing Methods 0.000 claims abstract description 9
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract description 41
- 238000001514 detection method Methods 0.000 abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000003204 osmotic effect Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 102000002067 Protein Subunits Human genes 0.000 description 1
- 108010001267 Protein Subunits Proteins 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/0007—Fluidic connecting means
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention relates to a magnetic exhaust type pressure measuring pipe, which belongs to the technical field of pressure measuring equipment and comprises a pressure measuring pipe and an installation barrel, wherein the installation barrel is horizontally arranged right below the pressure measuring pipe, and the pressure measuring pipe is communicated with the interior of the installation barrel; the exhaust hole is formed in the lower side of the installation barrel and communicated with the inside of the installation barrel; the spherical magnetic block is arranged in the installation barrel and is in sliding sealing connection with the inner wall of the installation barrel, and the magnetic driving mechanism is arranged on the installation barrel and used for driving the spherical magnetic block to move through magnetic force; according to the invention, the exhaust holes in the mounting barrel are matched with the spherical magnetic block for use, so that the position of the spherical magnetic block can be quickly adjusted through the magnetic driving mechanism, the bubble column and liquid in the pressure measuring pipe can be quickly discharged through the exhaust holes, and the exhaust holes can be sealed by the spherical magnetic block when the pressure measuring pipe normally monitors pressure, so that the detection accuracy of the pressure measuring pipe is improved; the pressure measuring pipe is convenient to use, high in measuring precision and strong in practicability, and is worthy of popularization.
Description
Technical Field
The invention belongs to the technical field of pressure measuring equipment, and particularly relates to a magnetic exhaust type pressure measuring pipe.
Background
The piezometer tube is a thin tubular instrument for measuring the relative pressure of liquid, and the height of water column in the tube is used to express the magnitude of osmotic pressure. The method is widely applied to the industries of water conservancy, petroleum, chemical engineering, engineering machinery manufacturing, coal mines, shipbuilding, aviation, automobiles, medical appliances and the like. The pressure measuring pipe is generally a vertically arranged glass pipe, an opening at the upper end of the pressure measuring pipe is communicated with the atmosphere, the lower end of the pressure measuring pipe is connected to the side wall of the container through a pipeline and is communicated with the liquid to be measured, the liquid in the container enters the glass pipe through the pipeline, and the height h of the liquid level in the pressure measuring pipe and the liquid level in the container are the same under the action of atmospheric pressure. Accordingly, the relative pressure P of the liquid in the container is gamma h, wherein gamma is the volume weight of the liquid. In the field of hydraulic engineering, the pressure measuring pipe mainly reflects the magnitude of osmotic pressure by the liquid level height in the pipe, and is usually used for monitoring underground water level, dam infiltration line, pore water pressure, gate (station) winding dam seepage, dam foundation seepage pressure, concrete gate dam uplift pressure, tunnel culvert external water pressure and the like in hydraulic building protomer monitoring. However, when using a pressure pipe to monitor the pressure of a dam, air is often present inside the pressure pipe, since the gas in the liquid enters the pressure pipe along with the pipe. With the continuous accumulation of air in the pressure measuring pipe, a bubble column with a certain thickness can be formed in the pressure measuring pipe as shown in fig. 1, and at the moment, when the pressure of liquid is measured, the liquid level of a water column in the pressure measuring pipe is falsely high due to the bubble column, so that the measured value h of the pressure measuring pipe is enabled to be measured 1 The liquid pressure measurement deviation is larger than the actual liquid level height value h of the liquid, and the liquid pressure data cannot be accurately obtained. At present, in order to avoid the influence of bubble columns in the pressure measuring pipe on the pressure monitoring accuracy, operators generally adopt a rod body to stir a water column in the pressure measuring pipe and discharge the bubble columns in the water column. However, the rod body stirs the water column for exhausting, so that not only can the gas in the pressure measuring pipe not be exhausted completely and quickly, but also part of air can enter the water column in the pressure measuring pipe,the pressure in the liquid can not be accurately detected, and the pressure detection efficiency of the piezometric tube is influenced.
Disclosure of Invention
In view of the above, the present invention provides a magnetic exhaust pressure measuring tube to solve the deficiencies in the prior art.
The technical scheme of the invention is as follows: a magnetic exhaust type pressure measuring pipe comprises a pressure measuring pipe, an installation barrel, an exhaust hole, a spherical magnetic block and a magnetic driving mechanism; the installation barrel is horizontally arranged right below the pressure measuring pipe, the upper side of the installation barrel is vertically connected with the bottom of the pressure measuring pipe, and the pressure measuring pipe is communicated with the interior of the installation barrel; the exhaust hole is formed in the lower side of the installation barrel, is positioned between the pressure measuring pipe and the bottom of the installation barrel and is communicated with the inside of the installation barrel; the spherical magnetic block is arranged inside the installation barrel and is in sliding sealing connection with the inner wall of the installation barrel, when the spherical magnetic block displaces between an input port of the installation barrel and the pressure measuring pipe, the pressure measuring pipe is communicated with the exhaust hole, and when the sphere displaces between the exhaust hole and the pressure measuring pipe, the pressure measuring pipe is communicated with the input port of the installation barrel; the magnetic driving mechanism is arranged on the mounting barrel and used for driving the spherical magnetic block to move through magnetic force.
Preferably, magnetic drive mechanism is including inlaying the circular magnetic path of establishing in the installation bucket bottom outside and rather than coaxial, circular magnetic path and installation bucket sliding connection, and circular magnetic path is opposite with spherical magnetic path magnetic pole, and the connecting rod is worn to be equipped with in the bottom of installation bucket, and the perpendicular fixed connection in one side of spherical magnetic path is kept away from to connecting rod one end and circular magnetic path, and the installation bucket is stretched out to the other end, and the inside annular magnetic path that is equipped with of input port of installation bucket, the inner wall fixed connection of annular magnetic path and installation bucket, annular magnetic path are the same with circular magnetic path magnetic pole.
Preferably, a sliding cavity is formed in the bottom of the installation barrel, the circular magnetic block is embedded into the sliding cavity and is in sliding connection with the sliding cavity, one end, far away from the circular magnetic block, of the connecting rod penetrates through the bottom of the installation barrel and is in sliding connection with the bottom of the installation barrel, and a handle is fixedly sleeved at one end, far away from the installation barrel, of the connecting rod.
Preferably, an annular sliding groove is formed in the installation barrel and located between the exhaust hole and the annular magnetic block, and the spherical magnetic block is connected with the annular sliding groove in a sliding and sealing mode.
Preferably, a first connecting pipe penetrates through one side, close to the pressure measuring pipe, of the mounting barrel, the first connecting pipe is fixedly connected with the mounting barrel, one end of the first connecting pipe penetrates through the inner wall of the mounting barrel and is communicated with the annular sliding groove, and the other end of the first connecting pipe is in threaded fit connection with the bottom of the pressure measuring pipe.
Preferably, a second connecting pipe is arranged on the input port of the mounting barrel in a penetrating manner and is coaxial with the input port, and one end of the second connecting pipe is fixedly connected with the mounting barrel.
Preferably, a valve is fixed to one end, far away from the input port of the installation barrel, of the second connecting pipe in a sleeved mode.
Compared with the prior art, the magnetic exhaust type pressure measuring pipe provided by the invention has the advantages that the exhaust holes in the installation barrel are matched with the spherical magnetic block for use, so that the position of the spherical magnetic block can be quickly adjusted through the magnetic driving mechanism, bubble columns and liquid in the pressure measuring pipe can be quickly exhausted through the exhaust holes, the exhaust holes can be sealed by the spherical magnetic block when the pressure measuring pipe normally monitors pressure, external gas is prevented from entering the pressure measuring pipe, and the detection accuracy of the pressure measuring pipe is improved; the circular magnetic block, the magnetic ring and the connecting rod of the magnetic driving mechanism are matched for use, so that an operator can conveniently and manually drive the circular magnetic block to move when exhausting the pressure measuring tube, the spherical magnetic block is rapidly driven to move through the magnetic poles opposite to the circular magnetic block, the exhaust pipe is opened and closed, the convenience of operation is improved, in addition, the spherical magnetic block and the circular magnetic block are opposite in polarity, the spherical magnetic block and the magnetic ring are opposite in polarity, the spherical magnetic block can be always attached to and hermetically connected with the arc-shaped surfaces at the two ends of the annular sliding groove, liquid is prevented from leaking from the exhaust hole, and the convenience of use of the pressure measuring tube is further improved; through the sliding cavity at the bottom of the mounting barrel, the circular magnetic block slides and is separated from the inside of the mounting barrel, so that external gas is prevented from entering the pressure measuring pipe, and the detection accuracy of the pressure measuring pipe is further improved; the annular sliding groove in the installation barrel is matched with the spherical magnetic block for use, so that the two ends of the annular sliding groove can be sealed by the spherical magnetic block, external gas is prevented from entering the pressure measuring pipe through the annular sliding groove, liquid in a pipeline communicated with a container to be measured is prevented from entering the annular sliding groove and flowing out of an exhaust hole when gas columns and liquid are exhausted through the exhaust hole, and the convenience of detection of the pressure measuring pipe is further improved; the first connecting pipe on the mounting barrel can be quickly detached and mounted with the pressure measuring pipe, and an operator can flexibly mount the pressure measuring pipe with obstructed precision according to the detection requirement, so that the detection flexibility is improved; the pressure measuring pipe is convenient to use, high in measuring precision and strong in practicability, and is worthy of popularization.
Drawings
FIG. 1 is a graph showing the effect of measuring the height difference of a piezometer tube caused by bubbles;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic view of the vent opening of the present invention;
FIG. 4 is a schematic view of the vent closure of the present invention;
FIG. 5 is a schematic view showing the polarity direction of the magnet according to the present invention.
Detailed Description
The invention provides a magnetic exhaust type piezometer tube, which is described in the following with reference to the structural schematic diagrams of figures 1 to 5.
Example 1
As shown in fig. 2, the magnetic exhaust type pressure measuring pipe comprises a pressure measuring pipe 1, an installation barrel 2, an exhaust hole 3, a spherical magnetic block 4 and a magnetic driving mechanism; the installation barrel 2 is horizontally arranged right below the pressure measuring pipe 1, the upper side of the installation barrel 2 is vertically connected with the bottom of the pressure measuring pipe 1, and the pressure measuring pipe 1 is communicated with the interior of the installation barrel 2; the exhaust hole 3 is formed in the lower side of the installation barrel 2, the exhaust hole 3 is located between the pressure measuring pipe 1 and the bottom of the installation barrel 2, and the exhaust hole 3 is communicated with the inside of the installation barrel 2; the spherical magnetic block 4 is arranged inside the installation barrel 2, the spherical magnetic block 4 is connected with the inner wall of the installation barrel 2 in a sliding and sealing mode, when the spherical magnetic block 4 moves to a position between an input port of the installation barrel 2 and the pressure measuring pipe 1, the pressure measuring pipe 1 is communicated with the exhaust hole 3, and when the sphere moves to a position between the exhaust hole 3 and the pressure measuring pipe 1, the pressure measuring pipe 1 is communicated with the input port of the installation barrel 2; magnetic drive mechanism sets up on installing bucket 2, be used for realizing through 4 displacements of the spherical magnetic path of magnetic drive, exhaust hole and the cooperation of spherical magnetic path through on the installing bucket use, not only can be through the position of the spherical magnetic path of magnetic drive mechanism quick adjustment, make bubble post and liquid in the pressure-measuring pipe discharge through the exhaust hole, and can also seal the exhaust hole by spherical magnetic path when the pressure-measuring pipe normally monitors pressure, avoid during external gas gets into the pressure-measuring pipe, improve the accuracy nature that the pressure-measuring pipe detected.
Preferably, first connecting pipe 51 is worn to be equipped with by one side that installation bucket 2 is close to pressure-measuring pipe 1, first connecting pipe 51 and installation bucket 2 fixed connection, and the inner wall and the annular sliding tray 41 intercommunication of installation bucket 2 are passed to first connecting pipe 51's one end, and the other end is connected with the bottom screw-thread fit of pressure-measuring pipe 1, and through the first connecting pipe on the installation bucket, can carry out quick dismantlement, installation with the pressure-measuring pipe, and operating personnel can install the pressure-measuring pipe of obstructed precision in a flexible way as required by the detection, improves the flexibility that detects.
Preferably, wear to be equipped with the second connecting pipe on the input port of installation bucket 2 and rather than coaxial, the one end and the installation bucket 2 fixed connection of second connecting pipe, through the second connecting pipe conveniently with wait to detect the pipeline intercommunication of container.
Preferably, the valve is fixedly sleeved on one end, far away from the input port of the installation barrel 2, of the second connecting pipe, the pressure of liquid can be prevented from blocking the spherical magnetic block 4 to move quickly when the valve exhausts, and the use convenience is further improved.
Example 2
In order to further improve the convenience that the pressure-measuring tube used, circular magnetic path through magnetic drive mechanism, magnetic ring and connecting rod cooperation are used, make things convenient for operating personnel when exhausting to the pressure-measuring tube, can the displacement of manual drive circular magnetic path, through circular magnetic path and the opposite magnetic pole of spherical magnetic path, the spherical magnetic path of quick drive carries out the displacement, open and seal the blast pipe, improve the convenience of operation, spherical magnetic path is opposite with circular magnetic path polarity in addition, spherical magnetic path is opposite with the magnetic ring polarity, can make spherical magnetic path laminate sealing connection with the arcwall face at annular sliding groove both ends all the time, avoid liquid to leak from the exhaust hole.
As shown in fig. 5, preferably, the magnetic driving mechanism includes a circular magnetic block 21 embedded in the outer side of the bottom of the mounting barrel 2 and coaxial therewith, the circular magnetic block 21 is slidably connected with the mounting barrel 2, the circular magnetic block 21 and the spherical magnetic block 4 have opposite magnetic poles, a connecting rod 22 is inserted in the bottom of the mounting barrel 2, one end of the connecting rod 22 is vertically and fixedly connected with one side of the circular magnetic block 21 away from the spherical magnetic block 4, the other end of the connecting rod extends out of the mounting barrel 2, an annular magnetic block 23 is arranged inside an input port of the mounting barrel 2, the annular magnetic block 23 is fixedly connected with the inner wall of the mounting barrel 2, the magnetic poles of the annular magnetic block 23 and the circular magnetic block 21 are the same, and the repulsive force between the circular magnetic block 21 and the spherical magnetic block 4 is greater than the repulsive force between the annular magnetic block 23 and the spherical magnetic block 4 and the pressure of liquid on the side of the spherical magnetic block 4 away from the circular magnetic block 21.
Preferably, sliding cavity 31 has been seted up to the bottom of installation bucket 2, and circular magnetic block 21 imbeds in sliding cavity 31 and rather than sliding connection, and connecting rod 22 keeps away from the one end of circular magnetic block 21 and passes the bottom of installation bucket 2 and rather than sliding connection, and the one end suit that installation bucket 2 was kept away from to connecting rod 22 is fixed with the handle, through the sliding cavity of installation bucket bottom for circular magnetic block slides and separates with the installation bucket is inside, avoids during the outside gas gets into the pressure-measuring pipe, further improves the accuracy nature that the pressure-measuring pipe detected.
Example 3
In order to further improve the convenience that the pressure-measuring pipe detected, use with the cooperation of spherical magnetic path through the inside annular sliding tray of installation bucket, can realize sealing the both ends of annular sliding tray by spherical magnetic path, not only avoid outside gas to get into the pressure-measuring pipe through the annular sliding tray, moreover when discharging gas post and liquid through the exhaust hole, prevent and wait to measure the convenience that liquid among the container communicating pipe got into the annular sliding tray and flowed from the exhaust hole, further pressure-measuring pipe detected.
Preferably, the inside of the installation barrel 2 is located between the exhaust hole 3 and the annular magnetic block 23 and is provided with an annular sliding groove 41, the spherical magnetic block 4 is connected with the annular sliding groove 41 in a sliding and sealing manner, an arc-shaped surface is arranged between two ends of the annular sliding groove 41 and the inner wall of the installation barrel 2, and the spherical magnetic block 4 is connected with the arc-shaped surface in a fitting manner.
When the pressure of the water body in the container or the pressure of the liquid in the pipeline needs to be measured, as shown in fig. 4, after one end of the installation barrel of the device, which is far away from the handle, is connected with the pipeline communicated with the container or the infusion pipeline, the liquid in the container or the pipeline enters a pressure measuring pipe, and the pressure of the liquid in the container is obtained through P ═ γ h and γ as the volume weight of the liquid according to the height value of the liquid level in the pressure measuring pipe; as shown in fig. 1, when air bubbles appear in the pressure measuring tube, an operator pushes the handle, as shown in fig. 3, the spherical magnetic block is driven by the circular magnetic block to move from the right end to the left end of the annular sliding groove (the repulsive force between the circular magnetic block and the circular magnetic block is greater than the repulsive force between the annular magnetic block and the spherical magnetic block and the pressure of external liquid, when a valve is arranged on the second connecting tube, the situation that the pressure of the external liquid blocks the spherical magnetic block 4 from blocking the rapid movement can be avoided), after the liquid and air in the pressure measuring tube are discharged through the exhaust hole, the operator releases the handle, as shown in fig. 4, the spherical magnetic block automatically and rapidly moves to the right end of the annular sliding groove under the action of the annular magnetic block and the liquid, the liquid in the container to be measured or the pipeline after the exhaust hole is sealed enters the pressure measuring tube again, and the operator performs pressure calculation according to normal steps.
According to the magnetic exhaust type pressure measuring pipe, the exhaust hole in the installation barrel is matched with the spherical magnetic block for use, so that the position of the spherical magnetic block can be quickly adjusted through the magnetic driving mechanism, a bubble column and liquid in the pressure measuring pipe can be exhausted through the exhaust hole, the exhaust hole can be sealed by the spherical magnetic block when the pressure measuring pipe normally monitors pressure, external gas is prevented from entering the pressure measuring pipe, and the detection accuracy of the pressure measuring pipe is improved; the circular magnetic block, the magnetic ring and the connecting rod of the magnetic driving mechanism are matched for use, so that an operator can conveniently and manually drive the circular magnetic block to move when exhausting the pressure measuring tube, the spherical magnetic block is rapidly driven to move through the magnetic poles opposite to the circular magnetic block, the exhaust pipe is opened and closed, the convenience of operation is improved, in addition, the spherical magnetic block and the circular magnetic block are opposite in polarity, the spherical magnetic block and the magnetic ring are opposite in polarity, the spherical magnetic block can be always attached to and hermetically connected with the arc-shaped surfaces at the two ends of the annular sliding groove, liquid is prevented from leaking from the exhaust hole, and the convenience of use of the pressure measuring tube is further improved; through the sliding cavity at the bottom of the mounting barrel, the circular magnetic block slides and is separated from the inside of the mounting barrel, so that external gas is prevented from entering the pressure measuring pipe, and the detection accuracy of the pressure measuring pipe is further improved; the annular sliding groove in the installation barrel is matched with the spherical magnetic block for use, so that the two ends of the annular sliding groove can be sealed by the spherical magnetic block, external gas is prevented from entering the pressure measuring pipe through the annular sliding groove, liquid in a pipeline communicated with a container to be measured is prevented from entering the annular sliding groove and flowing out of an exhaust hole when gas columns and liquid are exhausted through the exhaust hole, and the convenience of detection of the pressure measuring pipe is further improved; the first connecting pipe on the mounting barrel can be quickly detached and mounted with the pressure measuring pipe, and an operator can flexibly mount the pressure measuring pipe with obstructed precision according to the detection requirement, so that the detection flexibility is improved; the pressure measuring pipe is convenient to use, high in measuring precision and strong in practicability, and is worthy of popularization.
The above disclosure is only for the preferred embodiments of the present invention, but the embodiments of the present invention are not limited thereto, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.
Claims (7)
1. The utility model provides a magnetic force exhaust formula pressure-measuring pipe, includes pressure-measuring pipe (1), its characterized in that still includes:
the installation barrel (2) is horizontally arranged right below the pressure measuring pipe (1), the upper side of the installation barrel (2) is vertically connected with the bottom of the pressure measuring pipe (1), and the pressure measuring pipe (1) is communicated with the interior of the installation barrel (2);
the exhaust hole (3) is formed in the lower side of the installation barrel (2), the exhaust hole (3) is located between the pressure measuring pipe (1) and the bottom of the installation barrel (2), and the exhaust hole (3) is communicated with the interior of the installation barrel (2);
the spherical magnetic block (4) is arranged inside the mounting barrel (2), the spherical magnetic block (4) is connected with the inner wall of the mounting barrel (2) in a sliding and sealing mode, when the spherical magnetic block (4) displaces between an input port of the mounting barrel (2) and the pressure measuring pipe (1), the pressure measuring pipe (1) is communicated with the exhaust hole (3), and when the sphere displaces between the exhaust hole (3) and the pressure measuring pipe (1), the pressure measuring pipe (1) is communicated with the input port of the mounting barrel (2);
and the magnetic driving mechanism is arranged on the mounting barrel (2) and is used for driving the spherical magnetic block (4) to displace through magnetic force.
2. The magnetic force exhaust type piezometer tube according to claim 1, characterized in that the magnetic force driving mechanism comprises a circular magnetic block (21) embedded at the outer side of the bottom of the installation barrel (2) and coaxial therewith, the circular magnetic block (21) is in sliding connection with the installation barrel (2), the magnetic poles of the circular magnetic block (21) and the spherical magnetic block (4) are opposite, a connecting rod (22) penetrates through the bottom of the installation barrel (2), one end of the connecting rod (22) is vertically and fixedly connected with one side, away from the spherical magnetic block (4), of the circular magnetic block (21), the other end of the connecting rod extends out of the installation barrel (2), an annular magnetic block (23) is arranged inside an input port of the installation barrel (2), the annular magnetic block (23) is fixedly connected with the inner wall of the installation barrel (2), and the magnetic poles of the annular magnetic block (23) are the same as those of the circular magnetic block (21).
3. The magnetic exhaust type piezometer tube according to claim 2, wherein a sliding cavity (31) is formed in the bottom of the installation barrel (2), the circular magnet (21) is embedded in the sliding cavity (31) and is in sliding connection with the sliding cavity, one end of the connecting rod (22), which is far away from the circular magnet (21), penetrates through the bottom of the installation barrel (2) and is in sliding connection with the installation barrel, and a handle is fixed to one end of the connecting rod (22), which is far away from the installation barrel (2), in a sleeved manner.
4. The magnetic exhaust type piezometer tube according to claim 2, wherein an annular sliding groove (41) is formed in the installation barrel (2) between the exhaust hole (3) and the annular magnet (23), and the spherical magnet (4) is connected with the annular sliding groove (41) in a sliding and sealing manner.
5. The bulb type exhaust and pressure measuring pipe according to claim 1, wherein a first connecting pipe (51) is arranged on one side of the installation barrel (2) close to the pressure measuring pipe (1) in a penetrating mode, the first connecting pipe (51) is fixedly connected with the installation barrel (2), one end of the first connecting pipe (51) penetrates through the inner wall of the installation barrel (2) to be communicated with the annular sliding groove (41), and the other end of the first connecting pipe is in threaded fit connection with the bottom of the pressure measuring pipe (1).
6. The bulb type exhaust and pressure measuring pipe according to claim 1, wherein a second connecting pipe is arranged on the input port of the installation barrel (2) in a penetrating manner and is coaxial with the input port, and one end of the second connecting pipe is fixedly connected with the installation barrel (2).
7. The bulb type exhaust and pressure measuring pipe according to claim 6, wherein a valve is fixed on one end of the second connecting pipe, which is far away from the input port of the installation barrel (2), in a sleeving manner.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210758721.3A CN115077786A (en) | 2022-06-30 | 2022-06-30 | Magnetic force exhaust formula pressure-measuring pipe |
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| CN202210758721.3A CN115077786A (en) | 2022-06-30 | 2022-06-30 | Magnetic force exhaust formula pressure-measuring pipe |
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