CN116499637B - Pressure transmitter capable of preventing pressure impact - Google Patents
Pressure transmitter capable of preventing pressure impact Download PDFInfo
- Publication number
- CN116499637B CN116499637B CN202310713808.3A CN202310713808A CN116499637B CN 116499637 B CN116499637 B CN 116499637B CN 202310713808 A CN202310713808 A CN 202310713808A CN 116499637 B CN116499637 B CN 116499637B
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- CN
- China
- Prior art keywords
- pressure transmitter
- fixedly connected
- air inlet
- connecting seat
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000001914 filtration Methods 0.000 claims description 15
- 230000035939 shock Effects 0.000 claims description 2
- 238000009530 blood pressure measurement Methods 0.000 abstract description 2
- 230000035945 sensitivity Effects 0.000 description 4
- 230000000703 anti-shock Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- 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
- G01L19/06—Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
- G01L19/0609—Pressure pulsation damping arrangements
-
- 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
- G01L19/06—Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
- G01L19/0618—Overload protection
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Abstract
The invention belongs to the technical field of pressure measurement equipment, in particular to a pressure transmitter capable of preventing pressure impact; the invention comprises a pressure transmitter body, wherein a wiring pipe is fixedly connected to the pressure transmitter body; the pressure transmitter body is fixedly connected with an interface tube; the interface pipe is fixedly connected with an anti-impact assembly; the anti-impact assembly comprises a shell, and an air inlet and an air outlet are respectively arranged at two ends of the shell; the shell is internally connected with a liftable connecting seat, the connecting seat is connected with a liftable valve block matched with the air inlet, the connecting seat is rotationally connected with a pair of flow dividing plates, and the two flow dividing plates are respectively arranged at two sides of the air inlet; the anti-impact assembly drives the rotating rod to rotate through the rotation of the flow dividing plate, and the rotating rod drives the valve block to descend, so that the air flow of the air inlet is reduced, the impact of the air flow on the diaphragm inside the pressure transmitter is reduced, and the pressure transmitter is protected.
Description
Technical Field
The invention relates to the technical field of pressure measurement equipment, in particular to a pressure transmitter capable of preventing pressure impact.
Background
The pressure transmitter is a device for converting pressure into pneumatic signals or electric signals for control and remote transmission, and can convert physical pressure parameters of gas, liquid and the like sensed by the load cell sensor into standard electric signals so as to supply secondary instruments such as an indication alarm instrument, a recorder, a regulator and the like for measurement, indication and process adjustment, so that the gas transmission effect is better.
In typical walking machinery and industrial hydraulic pressure, if extreme conditions such as instantaneous impact and high-frequency impact are not considered in design, any conventional pressure sensor can be damaged by instantaneous strong airflow impact, so that an impact-resistant pressure sensor is needed. The pressure sensor of the strain gauge chip has 1.5 times full scale impact resistance, but in practical application, the pressure equipment is easy to break down and damage the sensor at the starting moment.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a pressure transmitter capable of preventing pressure impact, which can prevent larger pressure impact by connecting an impact prevention assembly on a transformer body so as to solve the problems in the background art.
In order to achieve the technical aim, the specific technical scheme of the invention is that the pressure transmitter for preventing pressure impact comprises a pressure transmitter body, wherein a wiring tube is fixedly connected to the pressure transmitter body; the pressure transmitter body is fixedly connected with an interface tube; the interface pipe is fixedly connected with an anti-impact assembly; the anti-impact assembly comprises a shell, and an air inlet and an air outlet are respectively arranged at two ends of the shell; the shell is connected with a liftable connecting seat, the connecting seat is connected with a valve block which can be lifted and matched with the air inlet, the connecting seat is rotationally connected with a pair of flow dividing plates, and the two flow dividing plates are respectively arranged on two sides of the air inlet; the air flow blows to the flow dividing plate after passing through the air inlet to drive the flow dividing plate to rotate.
As a preferable technical scheme of the invention, the air inlet and the valve block are both in mutually matched conical structures, when the valve block ascends, the opening degree of the air inlet is increased, and when the valve block descends, the opening degree of the air inlet is reduced.
As a preferable technical scheme of the invention, a pair of rotating rods which are arranged in a crossed manner are rotationally connected in the connecting seat, a lifting seat is connected in the connecting seat, a pair of sliding blocks are slidingly connected on the lifting seat, and one end of each rotating rod is rotationally connected with each sliding block.
As a preferable technical scheme of the invention, a first gear is connected at the rotation point of the flow dividing plate, a second gear meshed with the first gear is rotatably connected in the connecting seat, and a tooth block meshed with the second gear is connected at the other end of the rotating rod; can upwards rotate when receiving strong air current impact through the flow distribution plate, first gear drives the tooth piece through the second gear and rotates, and the tooth piece drives the dwang and rotates, drives two sliders and moves to the centre, and then drives the valve piece and descend, reduces the degree of opening of air inlet, reduces the air input of air current, avoids strong air current to cause the damage to the inside diaphragm of pressure transmitter body, protects pressure transmitter body 1.
As a preferable technical scheme of the invention, the splitter plate is fixedly connected with the stay bars, the inner wall of the shell is symmetrically and fixedly connected with a pair of limiting plates which are matched with the stay bars and are arranged obliquely downwards, and springs are fixedly connected between the limiting plates and the inner wall of the shell and apply elasticity to the stay bars, so that one end of the stay bars is stably connected with the limiting plates.
As a preferable technical scheme of the invention, a sliding rail is arranged on the limiting plate, and a pulley which is in sliding connection with the sliding rail is fixedly connected on the supporting rod; the flow distribution plate rotates and drives the pulley to slide downwards along the sliding rail to drive the connecting seat and the valve block to descend simultaneously, so that the opening degree of the air inlet is further reduced, and the descending sensitivity of the valve block is improved.
As a preferable technical scheme of the invention, the inner wall of the shell is fixedly connected with a connecting frame, and a telescopic rod is connected between the connecting frame and the connecting seat.
As a preferable technical scheme of the invention, the air inlet is connected with the air filtering mechanism, the air filtering mechanism comprises a filter cylinder, a first filter screen is connected in the filter cylinder, a groove which is matched and connected with the first filter screen is formed in the filter cylinder, and a second filter screen which is perpendicular to the first filter screen is connected in the filter cylinder.
As a preferable technical scheme of the invention, the pressure transmitter body is fixedly connected with a mounting seat, the mounting seat is connected with a mounting frame, the mounting frame comprises a pair of hinged clamps, the clamps are fixedly connected with connecting plates, and a U-shaped frame used for being fixed on a pipeline is fixedly connected between the two connecting plates.
The beneficial effects of the invention are as follows:
1. according to the anti-impact assembly, the air inlet and the valve block are provided with the conical structure, after strong air flows through the air inlet, the air flows are blown to the flow dividing plate, the flow dividing plate plays a role in slowing down the strong air flows, the strong air flows drive the flow dividing plate to rotate, the flow dividing plate rotates to drive the rotating rod to rotate, the rotating rod drives the valve block to descend, and therefore air flow of the air inlet is reduced, impact of the air flows on a diaphragm inside the pressure transmitter is reduced, and the pressure transmitter is protected.
2. According to the invention, the stay bars are fixedly connected to the flow dividing plate, the limiting plate which is obliquely downwards arranged in a sliding fit with the stay bars is fixedly connected to the inner wall of the shell, when the air flow drives the flow dividing plate to rotate, the stay bars slide downwards along the limiting plate, so that the connecting seat and the valve block are driven to descend, the opening degree of the air inlet is further reduced, the air flow enters the pressure transmitter, and the descending sensitivity of the valve block is improved.
3. According to the invention, the gas filtering mechanism is fixedly connected to the anti-impact assembly, so that the gas is filtered by the gas filtering mechanism, impurities in the gas are prevented from being blocked in the pressure transmitter, the pressure transmitter is damaged, and the pressure transmitter is protected.
Drawings
Fig. 1 is a schematic diagram of a pressure transmitter with pressure shock protection according to the present invention.
Fig. 2 is a schematic front view of fig. 1.
FIG. 3 is a schematic view of the impact protection assembly of the present invention.
Fig. 4 is a schematic view of the internal structure of the connecting seat according to the present invention.
FIG. 5 is a schematic view of a gas filtering mechanism according to the present invention.
Fig. 6 is a schematic structural view of the mounting frame of the present invention.
In the figure: 1. a pressure transmitter body; 11. a wire connection tube; 12. a mounting base; 13. an interface tube; 2. a mounting frame; 21. a clamp; 22. a connecting plate; 23. a U-shaped frame; 3. an impact assembly; 31. a housing; 32. an air outlet; 33. a connecting seat; 331. a rotating lever; 332. a slide block; 333. tooth blocks; 334. a first gear; 335. a second gear; 336. a lifting seat; 34. a valve block; 35. a limiting plate; 36. a slide rail; 37. a diverter plate; 38. a brace rod; 39. a spring; 310. a pulley; 311. an air inlet; 312. a telescopic rod; 313. a connecting frame; 4. a gas filtering mechanism; 41. a filter cartridge; 42. a first filter screen; 43. a groove; 44. and a second filter screen.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Examples: as shown in fig. 1-6, the invention relates to a pressure transmitter for preventing pressure impact, which comprises a pressure transmitter body 1, wherein a wiring pipe 11 is fixedly connected to the pressure transmitter body 1, and the wiring pipe 11 is connected with an external cable; fixedly connected with interface pipe 13 on the pressure transmitter body 1, interface pipe 13 and pipeline threaded connection, fixedly connected with anti-shock subassembly 3 on the interface pipe 13, anti-shock subassembly 3 are used for placing the impact damage of stronger air current to the pressure transmitter body 1.
As shown in fig. 3 to 4, the anti-impact assembly 3 comprises a housing 31, wherein an air inlet 311 and an air outlet 32 are respectively arranged at two ends of the housing 31, a liftable connecting seat 33 is connected in the housing 31, a connecting frame 313 is fixedly connected to the inner wall of the housing 31, a telescopic rod 312 is connected between the connecting frame 313 and the connecting seat 33, a valve block 34 which can be lifted and matched with the air inlet 311 is connected to the connecting seat 33, the air inlet 311 and the valve block 34 are both in a mutually matched conical structure, when the valve block 34 is lifted, the opening degree of the air inlet 311 is increased, and when the valve block 34 is lowered, the opening degree of the air inlet 311 is reduced; the connecting seat 33 is rotationally connected with a pair of flow dividing plates 37, the two flow dividing plates 37 are respectively arranged at two sides of the air inlet 311, when air is directly blown to the flow dividing plates 37 through the air inlet 311, the flow dividing plates 37 rotate under the impact of stronger air flow, and the flow dividing plates 37 can play a role in reducing energy of strong air flow; the connecting seat 33 is rotationally connected with a pair of rotating rods 331 which are arranged in a crossed manner, the middle of the rotating rods 331 is rotationally connected, the connecting seat 33 is internally connected with a lifting seat 336, the lifting seat 336 is slidingly connected with a pair of sliding blocks 332, one end of the rotating rods 331 is rotationally connected with the sliding blocks 332, the rotating point of the flow dividing plate 37 is connected with a first gear 334, the connecting seat 33 is rotationally connected with a second gear 335 which is meshed with the first gear 334, the other end of the rotating rods 331 is connected with a tooth block 333 which is meshed with the second gear 335, and the tooth block 333 is always meshed with the second gear 335; when the splitter plate 37 is impacted by strong air flow, the first gear 334 drives the tooth block 333 to rotate through the second gear 335, the tooth block 333 drives the rotating rod 331 to rotate, the two sliding blocks 332 are driven to move towards the middle, the valve block 34 is driven to descend, the opening degree of the air inlet 311 is reduced, the air inflow of the air flow is reduced, the damage to the membrane inside the pressure transmitter body 1 caused by the strong air flow is avoided, and the pressure transmitter body 1 is protected.
The splitter plate 37 is fixedly connected with a supporting rod 38, a pair of limiting plates 35 which are matched with the supporting rod 38 and are arranged obliquely downwards are symmetrically and fixedly connected with the inner wall of the shell 31, a spring 39 is fixedly connected between the limiting plates 35 and the inner wall of the shell 31, a sliding rail 36 is arranged on the limiting plates 35, a pulley 310 which is in sliding connection with the sliding rail 36 is fixedly connected with the supporting rod 38, and the spring 39 applies elasticity to the supporting rod 38, so that the pulley 310 is always in contact with the sliding rail 36; when the strong air flow drives the flow dividing plate 37 to rotate upwards, the flow dividing plate 37 drives the pulley 310 to slide downwards along the sliding rail 36, so that the connecting seat 33 and the valve block 34 are driven to descend, the descending sensitivity of the valve block 34 is increased, the valve block 34 can rapidly reduce the opening degree of the air inlet 311, and the aim of timely keeping the pressure transmitter body 1 is fulfilled; when the flow dividing plate 37 is not acted upon by the air flow, the flow dividing plate 37 contacts the bottom of the housing 31 by gravity, and the air inlet 311 is in an incompletely opened state.
As shown in fig. 5, the gas filtering mechanism 4 is connected to the gas inlet 311, the gas filtering mechanism 4 is in threaded sealing connection with the housing 31, the gas filtering mechanism 4 is used for filtering particles in gas, blocking of the pressure transmitter body 1 is avoided, the gas filtering mechanism 4 comprises a filter cartridge 41, a first filter screen 42 is connected to the filter cartridge 41, a groove 43 matched and connected with the first filter screen 42 is formed in the filter cartridge 41, a second filter screen 44 perpendicular to the first filter screen 42 is connected to the filter cartridge 41, the second filter screen 44 is in a cylindrical structure, and a better filtering effect is achieved through double filtering of the first filter screen 42 and the second filter screen 44.
As shown in fig. 1 and 6, the pressure transmitter body 1 is fixedly connected with a mounting seat 12, the mounting seat 12 is connected with a mounting frame 2, the mounting frame 2 comprises a pair of hinged clamps 21, the clamps 21 are fixedly connected with connecting plates 22, a U-shaped frame 23 used for being fixed on a pipeline is fixedly connected between the two connecting plates 22, and the U-shaped frame 23 is fixedly connected with the connecting plates 22 through nuts, so that the pressure transmitter is fixed on the pipeline.
Working principle: when strong air current blows to the splitter plate 37 through the air inlet 311, the splitter plate 37 is driven to rotate, the splitter plate 37 rotates to drive the first gear 334 to rotate, the first gear 334 drives the tooth block 333 to rotate through the second gear 335, the tooth block 333 drives the rotating rod 331 to rotate, the two sliding blocks 332 are driven to move towards the middle, the valve block 34 is driven to descend, the opening degree of the air inlet 311 is reduced, the splitter plate 37 rotates and simultaneously drives the pulley 310 to slide downwards along the sliding rail 36, the connecting seat 33 and the valve block 34 are driven to descend, the opening degree of the air inlet 311 is further reduced, the descending sensitivity of the valve block 34 is improved, the strong air current is prevented from damaging the membrane inside the pressure transmitter body 1, and the pressure transmitter body 1 can be protected in time.
Finally, it should be noted that: in the description of the present invention, it should be noted that the azimuth or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention.
The foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The pressure transmitter for preventing pressure impact comprises a pressure transmitter body (1), wherein a wiring pipe (11) is fixedly connected to the pressure transmitter body (1); the pressure transmitter body (1) is fixedly connected with an interface tube (13), which is characterized in that,
the interface tube (13) is fixedly connected with an anti-impact assembly (3);
the anti-impact assembly (3) comprises a shell (31), and an air inlet (311) and an air outlet (32) are respectively arranged at two ends of the shell (31);
the shell (31) is internally connected with a liftable connecting seat (33), the connecting seat (33) is connected with a valve block (34) which can be lifted and matched with the air inlet (311), the connecting seat (33) is rotationally connected with a pair of flow dividing plates (37), and the two flow dividing plates (37) are respectively arranged at two sides of the air inlet (311);
the air inlet (311) and the valve block (34) are both in a mutually matched conical structure;
a pair of rotating rods (331) which are arranged in a crossed manner are rotationally connected to the connecting seat (33), a lifting seat (336) is connected to the connecting seat (33), a pair of sliding blocks (332) are connected to the lifting seat (336) in a sliding manner, and one end of each rotating rod (331) is rotationally connected with each sliding block (332); a first gear (334) is connected at the rotating point of the flow dividing plate (37), a second gear (335) meshed with the first gear (334) is rotationally connected to the connecting seat (33), and a tooth block (333) meshed with the second gear (335) is connected to the other end of the rotating rod (331);
the splitter plate (37) is fixedly connected with a stay bar (38), the inner wall of the shell (31) is symmetrically and fixedly connected with a pair of limiting plates (35) which are matched with the stay bar (38) and are arranged obliquely downwards, and a spring (39) is fixedly connected between the limiting plates (35) and the inner wall of the shell (31); the limiting plate (35) is provided with a sliding rail (36), and the supporting rod (38) is fixedly connected with a pulley (310) which is in sliding connection with the sliding rail (36).
2. The pressure transmitter of claim 1 wherein a connecting frame (313) is fixedly connected to the inner wall of the housing (31), and a telescopic rod (312) is connected between the connecting frame (313) and the connecting seat (33).
3. The pressure transmitter of claim 2, wherein the gas inlet (311) is connected with a gas filtering mechanism (4), the gas filtering mechanism (4) comprises a filter cartridge (41), a first filter screen (42) is connected in the filter cartridge (41), a groove (43) matched and connected with the first filter screen (42) is arranged on the filter cartridge (41), and a second filter screen (44) perpendicular to the first filter screen (42) is connected in the filter cartridge (41).
4. A pressure transmitter for preventing pressure shock according to claim 3, wherein the pressure transmitter body (1) is fixedly connected with a mounting seat (12), the mounting seat (12) is connected with a mounting frame (2), the mounting frame (2) comprises a pair of hinged clamps (21), the clamps (21) are fixedly connected with connecting plates (22), and a U-shaped frame (23) for being fixed on a pipeline is fixedly connected between the two connecting plates (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310713808.3A CN116499637B (en) | 2023-06-16 | 2023-06-16 | Pressure transmitter capable of preventing pressure impact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310713808.3A CN116499637B (en) | 2023-06-16 | 2023-06-16 | Pressure transmitter capable of preventing pressure impact |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116499637A CN116499637A (en) | 2023-07-28 |
| CN116499637B true CN116499637B (en) | 2023-08-29 |
Family
ID=87320452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310713808.3A Active CN116499637B (en) | 2023-06-16 | 2023-06-16 | Pressure transmitter capable of preventing pressure impact |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116499637B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205719371U (en) * | 2016-05-09 | 2016-11-23 | 中国电器科学研究院有限公司 | A kind of hydraulic sensing device with simple exhaust structure |
| CN208476454U (en) * | 2018-06-13 | 2019-02-05 | 慈溪市普莱斯仪表有限公司 | A kind of pressure gauge buffer unit |
| CN111562049A (en) * | 2020-06-03 | 2020-08-21 | 合肥左心科技有限公司 | Pressure transmitter suitable for high-strength impact |
| CN111811730A (en) * | 2020-09-14 | 2020-10-23 | 南京沃天科技有限公司 | Pressure transmitter capable of remotely correcting, regulating and controlling |
| CN212275143U (en) * | 2020-07-20 | 2021-01-01 | 山东长城自动化设备有限公司 | Overpressure protection device for bellows pressure gauge |
| CN212275141U (en) * | 2020-05-23 | 2021-01-01 | 福建诚博自动化科技有限公司 | Shock-resistant pressure transmitter |
| CN112378571A (en) * | 2020-11-10 | 2021-02-19 | 西安丰汇测控工程有限公司 | Shock-resistant pressure transmitter |
-
2023
- 2023-06-16 CN CN202310713808.3A patent/CN116499637B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205719371U (en) * | 2016-05-09 | 2016-11-23 | 中国电器科学研究院有限公司 | A kind of hydraulic sensing device with simple exhaust structure |
| CN208476454U (en) * | 2018-06-13 | 2019-02-05 | 慈溪市普莱斯仪表有限公司 | A kind of pressure gauge buffer unit |
| CN212275141U (en) * | 2020-05-23 | 2021-01-01 | 福建诚博自动化科技有限公司 | Shock-resistant pressure transmitter |
| CN111562049A (en) * | 2020-06-03 | 2020-08-21 | 合肥左心科技有限公司 | Pressure transmitter suitable for high-strength impact |
| CN212275143U (en) * | 2020-07-20 | 2021-01-01 | 山东长城自动化设备有限公司 | Overpressure protection device for bellows pressure gauge |
| CN111811730A (en) * | 2020-09-14 | 2020-10-23 | 南京沃天科技有限公司 | Pressure transmitter capable of remotely correcting, regulating and controlling |
| CN112378571A (en) * | 2020-11-10 | 2021-02-19 | 西安丰汇测控工程有限公司 | Shock-resistant pressure transmitter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116499637A (en) | 2023-07-28 |
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