CN111678643B - Device convenient to disassemble and reliable in sealing and suitable for testing pressure transmitter parts - Google Patents
Device convenient to disassemble and reliable in sealing and suitable for testing pressure transmitter parts Download PDFInfo
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- CN111678643B CN111678643B CN202010581426.6A CN202010581426A CN111678643B CN 111678643 B CN111678643 B CN 111678643B CN 202010581426 A CN202010581426 A CN 202010581426A CN 111678643 B CN111678643 B CN 111678643B
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- 238000012360 testing method Methods 0.000 title claims abstract description 73
- 238000007789 sealing Methods 0.000 title claims abstract description 62
- 238000003825 pressing Methods 0.000 claims abstract description 22
- 230000002093 peripheral effect Effects 0.000 claims abstract description 7
- 230000007704 transition Effects 0.000 claims description 8
- 229920001971 elastomer Polymers 0.000 claims description 5
- 229920001973 fluoroelastomer Polymers 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims 2
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000010963 304 stainless steel Substances 0.000 description 5
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 5
- 230000003068 static effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 229920000915 polyvinyl chloride Polymers 0.000 description 3
- 239000004800 polyvinyl chloride Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- G01L27/00—Testing or calibrating of apparatus for measuring fluid pressure
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- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention discloses a device which is convenient to disassemble, reliable in sealing and suitable for testing pressure transmitter parts, and comprises a testing base, a mounting seat, a push rod, a pressing cap and an insulating sleeve, wherein a sealing hole is formed in the testing base, a first internal thread is arranged at the upper end of the sealing hole, a first external thread is arranged on the outer peripheral surface of the mounting seat, the mounting seat is in threaded connection with the first external thread through the first internal thread, the inner diameter of an inner cavity of the mounting seat is equal to the diameter of the pressure transmitter parts, the lower end of the mounting seat extends into the sealing hole of the testing base, the push rod is arranged in the mounting seat, the lower end of the push rod is in contact with the bottom surface of the sealing hole of the testing base, the pressing cap is in threaded connection with the upper end of the testing base, the insulating sleeve is arranged at the upper end of the pressing cap, and the insulating sleeve is used for fixing a circuit board in the pressure transmitter parts. The problems of slow disassembly speed and unreliable sealing during testing of parts in the manufacturing process of the pressure transmitter are solved.
Description
Technical Field
The invention belongs to the technical field of pressure transmitter part testing, and particularly relates to a device which is convenient to disassemble, reliable in sealing and suitable for pressure transmitter part testing.
Background
With the continuous development of scientific technology, the dependence of a set of emerging industries such as application of the Internet of things on the pressure transmitter leads to the continuous increase of the market demand of the pressure transmitter at home and abroad. This requires that manufacturers of large pressure transmitters continuously increase their production capacity to occupy more market share while ensuring their product quality. Such capacity increases require reliance on more advanced manufacturing techniques that are at the heart of efficient testing of pressure transmitter components.
However, it is a reality that the existing pressure transmitter parts are slow to disassemble for testing. After the pressure transmitter parts are tested, oil stains need to be cleaned one by one, the pressure transmitter parts are connected to the air pressure gauge, and the pressure transmitter parts are knocked out from the test base by controlling the air pressure output by the air pressure gauge. The operation speed is slow, the operation intensity is high, and the time consumption is high. In addition, the single-channel sealing adopted by the existing testing technology is unreliable, and the problem of pressure leakage under a high-low temperature testing state often occurs when batch production is carried out. When the situation occurs, the sealing needs to be checked again, and the high and low temperature tests need to be performed again, so that the time is wasted, and the production efficiency of the product is influenced.
Meanwhile, the corrugated diaphragm is very weak and slightly damaged, so that the performance of transmitter parts is deteriorated, and the transmitter parts are scrapped, and the corrugated diaphragm needs to be protected in the testing process.
Aiming at the defects of the prior art, the book at the end of transaction provides a device which is convenient to disassemble, reliable in sealing and suitable for testing pressure transmitter parts.
Disclosure of Invention
The invention aims to provide a device which is convenient to disassemble, reliable in sealing and suitable for testing pressure transmitter parts, so as to solve the problems of slow disassembling speed and unreliable sealing during part testing in the manufacturing process of a pressure transmitter.
In order to achieve the purpose, the device which is convenient to disassemble, reliable in sealing and suitable for testing pressure transmitter parts comprises a testing base, a mounting seat, an ejector rod, a pressing cap and an insulating sleeve, wherein a threaded hole, a sealing hole and a first mounting hole which are mutually communicated are sequentially formed in the testing base from top to bottom; during testing, the distance between the lower end face of the mounting seat and the bottom face of the first mounting hole is equal to the distance between an O-shaped ring arranged on the outer side of the pressure sensor in the inner cavity and the upper end face of the mounting seat; the testing device is characterized in that a push rod is installed in the mounting seat, the lower end of the push rod is in contact with the bottom surface of the mounting hole of the testing base, a pressing cap is in threaded connection with the upper end of the testing base, an insulating sleeve is installed at the upper end of the pressing cap, and the insulating sleeve is used for fixing a circuit board in pressure transmitter parts.
Furthermore, a first counter bore, a tapered hole and a through hole are sequentially formed in the ejector rod from top to bottom, and the first counter bore and the tapered hole are used for increasing the stress area of a corrugated diaphragm of a pressure sensor in the pressure transmitter parts.
Further, the diameter of the through hole is 2 mm.
Further, the ejector rod comprises a disc-shaped horizontal part and a cylindrical vertical part, and the horizontal part and the vertical part are connected through a connecting part.
Furthermore, the upper end of the pressing cap is provided with a U-shaped through hole for passing through the circuit board.
Further, a tapered transition hole is formed between the sealing hole and the threaded hole.
Furthermore, two sealing rings are arranged at the joint of the mounting seat and the test base.
Furthermore, the sealing ring is a fluororubber sealing ring with Shore hardness.
Furthermore, a second counter bore is formed in the upper end of the pressing cap, and the lower end of the insulating sleeve is matched with the second counter bore.
Furthermore, the outer peripheral surface of the upper end of the mounting seat is provided with a net-shaped knurl.
Compared with the prior art, the invention has at least the following beneficial technical effects:
the disassembly mode of the invention utilizes the basic law of acting force and reacting force, and the ejector rod reversely ejects the parts of the pressure transmitter out of the mounting seat by rotating the mounting seat downwards until the pressure sensor is completely separated from the mounting seat, thus quickly completing the disassembly. The disassembly speed is effectively improved, and the production efficiency of products is improved to a greater extent. Because the corrugated diaphragm is very fragile, slight injury will take place the variation of changer parts performance, cause the changer parts to scrap, be equipped with T shape ejector pin in the device, this ejector pin external diameter is the same with the sensor external diameter, during the use, can form the protection to the corrugated diaphragm, reach the purpose that makes things convenient for changer parts to dismantle moreover.
Furthermore, a first counter bore, a tapered hole and a through hole are sequentially formed in the ejector rod from top to bottom, and the first counter bore and the tapered hole are used for increasing the stress area of a corrugated diaphragm of a pressure sensor in pressure transmitter parts and can protect the corrugated diaphragm to the maximum extent.
Furthermore, the diameter of the through hole is 2mm, the hole diameter is small, and the purpose is to reduce the loss of pressure medium oil output by the pressure gauge in the transmission process when a plurality of devices are cascaded in the later period, so that batch testing is convenient to realize; the through hole 34 is used for transferring pressure medium oil output by the pressure gauge to a tested product.
Furthermore, the ejector rod comprises a disc-shaped horizontal part and a cylindrical vertical part, the horizontal part and the vertical part are connected through a connecting part, and the connecting part is used for increasing the strength of the ejector rod and enabling the ejector rod not to be deformed easily.
Furthermore, the upper end of the pressing cap is provided with a U-shaped through hole for passing through the circuit board, the U-shaped through hole is convenient for the square circuit board to pass through, and meanwhile, the axial limiting of the pressing cap on the transmitter parts can be achieved.
Furthermore, a conical transition hole is formed between the sealing hole and the threaded hole, and the transition hole enables the mounting seat with the sealing ring to be smoothly mounted in the sealing hole.
Furthermore, a radial two-way static sealing structure is adopted, the sealing structure is more reliable relative to one sealing ring, the testing pressure range is wider, and the reliability in high and low temperature testing is improved.
Furthermore, the sealing ring is a fluororubber sealing ring with Shore hardness of 75 degrees, and the purpose of selecting the material hardness sealing ring is to adapt to long-term high-temperature and high-pressure tests, the maximum test pressure can reach 100MPa, the maximum test temperature can reach 125 ℃, and meanwhile, the test requirement of low temperature of-10 ℃ can be met.
Furthermore, a counter bore is formed in the upper end of the pressing cap, and the lower end of the insulating sleeve is matched with the first counter bore. The diameter size of the counter bore is the same as the outer diameter of the insulating sleeve, so that the insulating sleeve can be conveniently installed from the counter bore, and the insulating sleeve can be fixed.
Furthermore, the outer peripheral face of the upper end of the mounting seat is provided with a net-shaped knurl, the purpose of the knurl is skid-proof and decorative, and an operator can screw or loosen the threads of the mounting seat by hands without skidding.
Furthermore, most parts of the device are made of 304 stainless steel, the purpose is to utilize the heat resistance of the stainless steel, and the stainless steel still has excellent physical and mechanical properties at high temperature, which is exactly matched with the use working condition of the device; in addition, the corrosion resistance of the stainless steel enables the device to adapt to a long-term humid environment, and is convenient to maintain.
Furthermore, the insulating sleeve is made of polyvinyl chloride, and the polyvinyl chloride is made of the material with the characteristics of high temperature resistance, no deformation and no softening.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic left side view of the present invention;
FIG. 3 is a schematic top view of the present invention;
FIG. 4 is a first perspective view of a test base;
FIG. 5 is a second perspective view of the test base;
FIG. 6 is a cross-sectional view of a test base;
FIG. 7 is a first perspective view of the mounting base;
FIG. 8 is a second perspective view of the mounting base;
FIG. 9 is a cross-sectional view of the mount;
FIG. 10 is a first perspective view of the T-shaped push rod;
FIG. 11 is a second perspective view of the T-shaped jack;
FIG. 12 is a cross-sectional view of the T-shaped ejector pin;
FIG. 13 is a first perspective view of the press cap;
FIG. 14 is a second perspective view of the press cap;
FIG. 15 is a cross-sectional view of the press cap;
FIG. 16 is a cross-sectional view of the insulating sleeve;
FIG. 17 is an exploded view of the present invention;
wherein: 1-a test base, 2-a mounting base, 3-a T-shaped mandril, 4-a pressure cap, 5-an insulating sleeve, 6-a pressure transmitter spare part, 7-a sealing ring, 11-a sealing hole, 12-a first internal thread, 13-a second external thread, 14-a third external thread, 15-a threaded hole, 16-a first mounting hole, 17-a transition hole, 18-a connecting hole, 21-a first external thread, 22-a pressure groove, 23-a knurl, 24-an inner cavity, 25-a second mounting hole, 31-a horizontal part, 32-a vertical part, 33-a first counter bore, 34-a through hole, 35-a connecting part, 41-a second counter bore, 42-a U-shaped through hole and 43-a second internal thread; 61-pressure sensor, 62-locking ring, 63-circuit board, 64-rubber ring.
Detailed Description
In order to make the objects and technical solutions of the present invention clearer and easier to understand. The present invention will be described in further detail with reference to the following drawings and examples, wherein the specific examples are provided for illustrative purposes only and are not intended to limit the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified. In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The pressure transmitter part 6 comprises a pressure sensor 61, a locking ring 62 and a circuit board 63, wherein the pressure sensor 61 is sheathed with an O-shaped rubber ring 64.
Referring to fig. 1, fig. 2, fig. 3 and fig. 17, a device which is convenient to disassemble, reliable in sealing and suitable for testing pressure transmitter parts comprises a testing base 1, a mounting seat 2, a mandril 3, a pressing cap 4, an insulating sleeve 5 and a sealing ring 7.
Referring to fig. 4 to 6, the test base 1 is made of 304 stainless steel, the test base is sequentially provided with a threaded hole 15, a transition hole 17, a sealing hole 11, a first mounting hole 16 and a connecting hole 18 which are communicated with each other from top to bottom, the inner wall of the threaded hole 15 is provided with a first internal thread 12, the first internal thread 12 is an M16X1.5 internal thread, the outer wall of the upper end of the test base 1 is provided with a second external thread 13, namely an M27X2 external thread, the lower end of the test base 1 is provided with a third external thread 14, and the third external thread 14 is a standard M20X1.5 waterline sealing thread and is used for being connected with a peripheral standard piston pressure gauge interface. The lower part of the first 12 internal threads is a sealing hole 11, and the sealing hole 11 is used for forming radial static seal with the mounting seat 2. A transition hole 17 is formed between the sealing hole 11 and the threaded hole 15, the transition hole 17 is conical, so that the mounting seat 2 with the sealing ring can be conveniently mounted in the sealing hole 11, and the lower end of the ejector rod 3 extends into the first mounting hole 16 and is connected with the bottom surface of the first mounting hole 16.
Referring to fig. 7 to 9, the mounting base 2 is made of 304 stainless steel, the outer peripheral surface of the upper end of the mounting base is provided with a net-shaped knurl 23, the inner cavity is an inner cavity 24 with the diameter equal to that of the pressure transmitter parts, the lower part of the inner cavity 24 is communicated with a second mounting hole 25, and the upper end of the second mounting hole 25 is in a horn shape with a large upper part and a small lower part and is used for realizing radial static sealing with the pressure transmitter parts; two annular indent 22 have been seted up to 2 lower extremes of mount pad, install twice shore hardness in the annular indent 22 and be the fluororubber sealing washer of 75 degrees, 2 middle parts of mount pad are provided with first external screw thread 21, and first external screw thread 21 is standard M16X1.5 external screw thread, and this external screw thread is used for being connected with the first internal thread 12 of test base 1 upper end.
Referring to fig. 10 to 12, the T-shaped jack 3 is made of 304 stainless steel, the T-shaped jack 3 includes a disk-shaped horizontal portion 31 and a cylindrical vertical portion 32, the horizontal portion 31 and the vertical portion 32 are connected by a connecting portion 35, and the connecting portion 35 is conical; the T-shaped ejector rod 3 is sequentially provided with a first counter bore 33, a tapered hole 36 and a through hole 34 which are communicated with each other from top to bottom, and the first counter bore 32 and the tapered hole 36 have the function of increasing the stress area of the corrugated diaphragm in the pressure sensor 61. The diameter of the through hole 34 is phi 2mm, the aperture is small, and the purpose is to reduce the loss of pressure medium oil output by the pressure gauge in the transmission process when a plurality of devices are cascaded in the later period, thereby facilitating the realization of batch test; the through hole 34 is used for transferring pressure medium oil output by the pressure gauge to a tested product.
Referring to fig. 13 to 15, the pressing cap 4 is a shell structure, the pressing cap 4 is made of 304 stainless steel, the outer circumferential surface is a net-shaped knurl, and the upper end surface is provided with a net-shaped knurl
The second counter bore 42, the second counter bore 42 is used for fixing the insulating sleeve; in order to facilitate the circuit board to pass through, the upper end face of the pressing cap 4 is provided with a U-shaped through hole 41, the U-shaped through hole 41 is used for facilitating the square circuit board to pass through, and meanwhile, the pressing cap 4 can also be used for axially limiting the transmitter parts, so that the transmitter parts are axially stressed and cannot fly upwards when being tested and pressurized; the lower end of the press cap 4 is provided with a second internal thread 43, namely an M27X2 internal thread, which is used for connecting and locking with the external thread at the upper end of the test base.
Referring to fig. 16, the insulating sleeve 5 is made of polyvinyl chloride and can be assembled with a counter bore 41 with a diameter phi 22 on the upper end surface of the press cap 4, and the outer diameter phi 22 of the insulating sleeve 5 is the same as the diameter of the counter bore, so that the insulating sleeve 5 can be conveniently installed in the counter bore to form small clearance fit, and the insulating sleeve can be fixed. The inner cavity can form a tight fit with the circuit board, so that the circuit board can be protected and fixed.
The device which is convenient to disassemble, reliable in sealing and suitable for testing pressure transmitter parts comprises the following implementation method:
the device is connected: will test base 1 and be connected with piston oil pressure gauge through third external screw thread 1 of its lower extreme to form reliable seal through 1 water line groove of third external screw thread and pressure gauge. The sealing ring part at the lower end of the mounting seat 2 is pressed into the sealing hole of the test base 1, and the knurling outer surface of the mounting seat 2 is rotated to the first internal thread 12 at the upper end of the test base 1, so that the upper end surface of the first external thread 21 on the mounting seat 2 is flush with the upper end surface of the test base 1, and radial static sealing is formed. The vertical part 32 of the T-shaped ejector rod 3 is downwards arranged in the mounting seat 2, the T-shaped ejector rod 3 sinks into the bottommost end of the mounting seat, and then the corrugated diaphragm of the pressure sensor 61 in the transmitter parts is downwards plugged into the mounting seat 2 to form O-shaped ring seal with the mounting seat 2. The action is only limited to be connected when being used for the first time, and the disassembly and the assembly are not needed at the later stage.
Installing before testing: the corrugated diaphragm end of the pressure sensor 61 for the pressure transmitter parts faces downwards and is assembled in the inner cavity 24 of the mounting seat 2, the upper end face of the pressure sensor 61 is flush with the upper end face of the mounting seat 2, and radial static sealing is formed between the O-shaped sealing ring carried by the excircle of the pressure sensor 61 and the inner wall of the mounting seat. The locking ring carried by the parts of the pressure transmitter is pressed to the mounting base 2 along the silica gel line. The circuit board passes through the U-shaped hole in the pressing cap 4 and penetrates into the insulating sleeve 5, and the circuit board is fixed through the micro-deformation of the insulating sleeve 5. The second internal thread 43 of the lower end of the pressing cap 4 is connected with the second external thread of the test base 1, and the pressing cap 4 is screwed down. And finally, the insulating sleeve 5 is plugged into the second counter bore 42, and the installation before the test is finished, wherein the distance between the lower end surface of the installation seat 2 and the upper end surface of the inner cavity 24 is equal to the distance between the rubber ring 64 arranged outside the pressure sensor 61 in the inner cavity 24.
And (3) disassembling after testing: will press cap 4 to screw out, screw in the first external screw thread on mount pad 2 downwards, with the help of effort and reaction force basic law, ejecting in mount pad 2 through T shape ejector pin 3 with pressure transmitter spare part 6 is reverse, when the lower terminal surface of mount pad 2 and the lower terminal surface contact of sealed hole 11, the O shape circle of pressure transmitter spare part 6 is by ejecting inner chamber 24, makes pressure sensor and mount pad break away from sealedly completely, accomplishes the dismantlement promptly, this kind of dismantlement mode has effectually protected pressure sensor 61's bowen diaphragm.
The above-mentioned contents are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modification made on the basis of the technical idea of the present invention falls within the protection scope of the claims of the present invention.
Claims (8)
1. The device is convenient to disassemble, reliable in sealing and suitable for testing pressure transmitter parts, the pressure transmitter parts comprise a pressure sensor (61) and a circuit board (63), wherein the pressure sensor (61) is externally sleeved with a rubber ring (64) and is characterized by comprising a test base (1), a mounting seat (2), a mandril (3), a pressure cap (4) and an insulating sleeve (5), the test base (1) is sequentially provided with a threaded hole (15), a sealing hole (11) and a first mounting hole (16) which are communicated with each other from top to bottom, a first external thread (21) is arranged on the outer peripheral surface of the mounting seat (2), the first external thread (21) is in threaded connection with the threaded hole (15), an inner cavity (24) is formed in the mounting seat (2), the inner cavity (24) is used for mounting a pressure sensor (61), and the lower end of the mounting seat (2) extends into a sealing hole (11) of the test base (1); during testing, the distance between the lower end face of the mounting seat (2) and the bottom face of the first mounting hole (16) is equal to the distance between a rubber ring (64) arranged on the outer side of a pressure sensor (61) in the inner cavity (24) and the upper end face of the mounting seat (2); an ejector rod (3) is installed in the installation seat (2), the lower end of the ejector rod (3) is in contact with the bottom surface of an installation hole (16) of the test base (1), a pressing cap (4) is connected to the upper end of the test base (1) in a threaded mode, an insulation sleeve (5) is installed at the upper end of the pressing cap (4), and the insulation sleeve (5) is used for fixing a circuit board in parts of the pressure transmitter;
the upper end of the pressing cap (4) is provided with a U-shaped through hole (41) for passing through the circuit board;
and two sealing rings (7) are arranged at the joint of the mounting seat (2) and the test base (1).
2. The device convenient to disassemble and reliable in sealing and suitable for testing the pressure transmitter parts as claimed in claim 1, wherein the ejector rod (3) is sequentially provided with a first counter bore (33), a tapered hole (36) and a through hole (34) from top to bottom, and the first counter bore (33) and the tapered hole (36) are used for increasing the stress area of a corrugated diaphragm of a pressure sensor in the pressure transmitter parts.
3. The device for facilitating the disassembly and reliable sealing suitable for the testing of the pressure transmitter parts as claimed in claim 2, wherein the diameter of the through hole (34) is 2 mm.
4. The device for facilitating disassembly and reliable sealing for testing of pressure transmitter parts as claimed in claim 1, wherein the ram (3) comprises a disk-shaped horizontal portion (31) and a cylindrical vertical portion (32), and the horizontal portion (31) and the vertical portion (32) are connected by a connecting portion (35).
5. The device for facilitating disassembly and reliable sealing suitable for testing of pressure transmitter parts as claimed in claim 1, wherein the sealing hole (11) and the threaded hole (15) have a tapered transition hole (17) therebetween.
6. The device for facilitating the disassembly and reliable sealing suitable for the testing of the parts of the pressure transmitter as claimed in claim 1, wherein the sealing ring (7) is a fluororubber sealing ring with Shore hardness of (75).
7. The device which is convenient to disassemble and reliable in sealing and is suitable for the pressure transmitter part test is characterized in that the upper end of the pressure cap (4) is provided with a second counter bore (42), and the lower end of the insulating sleeve (5) is installed in the second counter bore (42).
8. The device which is convenient to disassemble and reliable in sealing and is suitable for the test of the pressure transmitter parts as claimed in claim 1, is characterized in that the outer peripheral surface of the upper end of the mounting seat (2) is provided with a net-shaped knurl.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010581426.6A CN111678643B (en) | 2020-06-23 | 2020-06-23 | Device convenient to disassemble and reliable in sealing and suitable for testing pressure transmitter parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010581426.6A CN111678643B (en) | 2020-06-23 | 2020-06-23 | Device convenient to disassemble and reliable in sealing and suitable for testing pressure transmitter parts |
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| Publication Number | Publication Date |
|---|---|
| CN111678643A CN111678643A (en) | 2020-09-18 |
| CN111678643B true CN111678643B (en) | 2022-02-01 |
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| CN202010581426.6A Active CN111678643B (en) | 2020-06-23 | 2020-06-23 | Device convenient to disassemble and reliable in sealing and suitable for testing pressure transmitter parts |
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| CN113639833B (en) * | 2021-08-13 | 2024-07-12 | 麦克传感器股份有限公司 | Liquid level transmitter testing device and method based on pneumatic control |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP6116396B2 (en) * | 2013-06-19 | 2017-04-19 | 株式会社ニフコ | Fitting |
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| EP2638374A1 (en) * | 2010-11-11 | 2013-09-18 | Badotherm Proces Instrumentatie B.V. | Diaphragm assembly for a pressure sensor, and a pressure sensor provided with such assembly |
| EP3656333A1 (en) * | 2016-11-08 | 2020-05-27 | Covidien LP | Force sensors for surgical devices to prevent ingress of fluids |
| CN208220855U (en) * | 2018-05-14 | 2018-12-11 | 中国石油天然气集团有限公司 | Hydraulic tappet with safety valve and the engine with the hydraulic tappet |
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