CN112763127A - Novel pneumatic pressure transmitter - Google Patents
Novel pneumatic pressure transmitter Download PDFInfo
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- CN112763127A CN112763127A CN202011582000.9A CN202011582000A CN112763127A CN 112763127 A CN112763127 A CN 112763127A CN 202011582000 A CN202011582000 A CN 202011582000A CN 112763127 A CN112763127 A CN 112763127A
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- valve body
- needle valve
- diaphragm
- valve seat
- pressure transmitter
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L7/00—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements
- G01L7/02—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges
- G01L7/08—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges of the flexible-diaphragm type
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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
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- General Physics & Mathematics (AREA)
- Control Of Fluid Pressure (AREA)
- Fluid-Driven Valves (AREA)
Abstract
The invention discloses a novel pneumatic pressure transmitter, which adopts the technical scheme that: the automatic adjusting valve comprises a lower valve body and an upper valve body, wherein a fluid input port is formed in the lower valve body, a pushing device is arranged in the lower valve body, a needle valve seat body is arranged at the upper end of the upper valve body, a needle valve assembly is arranged in the needle valve seat body, a protecting cover is arranged at the upper end of the needle valve seat body, an air source input port and an air source output port are respectively formed in two sides of the needle valve seat body, a first mounting groove is formed in the upper valve body, a reset spring is fixedly arranged at the upper end in the first mounting groove, a lower pressing rod is fixedly arranged at the lower end of the reset spring, a hinge is arranged at one end of the first mounting groove, a rotating plate is movably arranged on the hinge, a second; the invention can separate the diaphragm quickly and completely, and when the needle valve seat body is installed, the needle valve body can automatically align to the central hole in the diaphragm fixing plate.
Description
Technical Field
The invention relates to the technical field of pressure transmitters, in particular to a novel pneumatic pressure transmitter.
Background
The pressure transmitter is a device for converting pressure into pneumatic signal or electric signal to control and remotely transmit, and can convert the physical pressure parameters of gas, liquid and the like sensed by the load cell sensor into standard electric signals to be supplied to secondary instruments such as indication alarm instruments, recording instruments, regulators and the like for measurement, indication and process regulation. To high-pressure liquid detection pressure, if high-pressure liquid pressure surpassed manometer detection range, can't directly detect with the manometer. For high-viscosity fluid materials such as oil, high-molecular polymers and the like, the detection accuracy of the pressure gauge is influenced because the detection pipeline is easy to deposit and hang materials due to high material viscosity.
To the above-mentioned problem, chinese patent that grant publication number is CN209354723U discloses a pneumatic pressure transmitter for detecting high-pressure liquid, its technical essential is that the valve body bottom is equipped with high-pressure hydraulic oil inlet pipe way down, it is equipped with the air inlet pipeline to go up the valve body top, detect gaseous pipeline, high-pressure hydraulic oil inlet pipe way top is equipped with the plug cap, plug cap top is equipped with the ejector pin, the ejector pin top is equipped with the diaphragm, the diaphragm top is equipped with the needle, the needle top is equipped with compression spring, the inside first air cavity that forms of spring housing, the diaphragm top is the second air cavity, the diaphragm middle part is equipped with the exhaust hole, the exhaust hole is plugged up to the needle lower part, the exhaust hole passes through the.
The pneumatic pressure transmitter for detecting the high-pressure liquid can be used for detecting the high-pressure liquid, the upper limit of detection is improved, the reliability is good, and the detection result is accurate.
However, when the lower valve body and the upper valve body are disassembled and maintained, and the lower valve body is separated from the upper valve body, because the diaphragm is in a squeezed state for a long time, the metal contact surface of the diaphragm and the lower end of the upper valve body is easy to adhere, so that the diaphragm is easy to tear during separation, and at the moment, an operator needs to separate the diaphragm by using a metal sheet, which wastes time and labor, and the diaphragm is easy to damage during separation; when the needle valve seat body is installed, if an operator does not align the needle valve body with the central hole in the diaphragm fixing plate, the lower end part of the needle valve body is abraded, and the lower end of the needle valve body cannot completely plug the air hole in the lower end of the central hole, so that the problem of poor sealing is caused.
Disclosure of Invention
In view of the problems noted in the background of the invention, it is an object of the present invention to provide a novel pneumatic pressure transmitter that quickly and completely separates the diaphragm and allows the needle valve body to automatically align with the center hole in the diaphragm retaining plate when the needle valve seat body is installed.
The technical purpose of the invention is realized by the following technical scheme:
a novel pneumatic pressure transmitter comprises a lower valve body and an upper valve body, wherein a fluid input port is formed in the lower valve body, a pushing device is arranged in the lower valve body at a position corresponding to the upper end of the fluid input port, a needle valve seat body is arranged at the upper end of the upper valve body, a needle valve component is arranged in the needle valve seat body, a protecting cover is arranged at the upper end of the needle valve seat body, an air source input port and an air source output port are respectively formed in two sides of the needle valve seat body, a diaphragm fixing plate is arranged at the upper end of the pushing device, a diaphragm component is arranged on the diaphragm fixing plate, a diaphragm spring is fixedly arranged between the diaphragm fixing plate and the upper valve body, the outer end of the diaphragm component is arranged between the lower valve body and the upper valve body through a plurality of inner hexagonal screws, a first mounting groove is formed in the upper valve body, the fixed depression bar that is provided with of reset spring's lower extreme, the one end of first mounting groove is provided with the hinge, the activity is provided with the rotor plate on the hinge, the depression bar is seted up flutedly in the position department that corresponds to the rotor plate down, the one end of rotor plate stretches into the inside to the recess, go up the up end of valve body and seted up the second mounting groove, the lower extreme of the needle valve seat body is fixed to be provided with the telescopic link in the position department that corresponds to the second mounting groove, the fixed first magnet that is provided with of lower extreme of telescopic link, the inside bottom mounting of second mounting groove is provided with second magnet, first magnet is opposite with the magnetism of second magnet.
Further, the pushing device comprises a rubber diaphragm, a push rod sleeve is arranged at the upper end of the rubber diaphragm, a push rod is arranged inside the push rod sleeve, an elastic rubber sleeve is arranged between the upper end of the push rod sleeve and the upper end of the push rod, and the upper end face of the push rod is abutted to the lower end face of the diaphragm fixing plate.
By adopting the technical scheme, when fluid passes through the fluid input port, the fluid can push the rubber diaphragm in the pushing device to rise, and drive the push rod to rise, so that the diaphragm fixing plate is pushed up.
Furthermore, a diaphragm pressing plate is arranged on the diaphragm assembly, and a compression screw is arranged between the diaphragm pressing plate and the diaphragm fixing plate.
Through adopting above-mentioned technical scheme, be favorable to fixed diaphragm subassembly.
Further, the lower end of the lower pressure rod is fixedly provided with a rubber plate.
Through adopting above-mentioned technical scheme, push down the diaphragm subassembly after the depression bar descends, set up the rubber slab and push down the diaphragm, can guarantee that the diaphragm can not destroyed by the depression bar when the separation.
Further, the middle part of the diaphragm fixing plate is provided with a center hole, the needle valve assembly comprises a needle valve body, the lower end of the needle valve body is arranged in the center hole, the upper end of the needle valve body is arranged in the needle valve seat body, a needle valve rubber is arranged between the needle valve seat body and the needle valve body, a needle valve spring is fixedly arranged at the upper end of the needle valve body, and a top plate is fixedly arranged at the upper end of the needle valve spring.
Through adopting above-mentioned technical scheme, the diaphragm fixed plate is with needle valve body jack-up back, and the gas that produces in air supply input port department can discharge through the air supply delivery outlet to detect the size of atmospheric pressure, and judge fluidic pressure according to this.
Furthermore, the distance between the lower end surface of the telescopic rod after being extended and the upper valve body is smaller than the distance between the lower end surface of the needle valve body and the upper valve body.
Through adopting above-mentioned technical scheme, when the installation needle valve body, can guarantee that the telescopic link stretches into the inside to the second mounting groove earlier, be favorable to centering the lower extreme and the centre bore of needle valve body fast.
Furthermore, an adjusting screw is fixedly arranged at the upper end of the top plate, and a locking nut is arranged on the outer side of the adjusting screw.
By adopting the technical scheme, the size of the output pressure signal can be changed by controlling the adjusting screw rod.
Further, a sealing ring is arranged between the lower valve body and the push rod sleeve.
Through adopting above-mentioned technical scheme, can guarantee the whole leakproofness of changer.
In summary, the invention mainly has the following beneficial effects:
1. according to the invention, the lower pressure rod, the rotating plate and other devices are arranged at the position, close to the inner hexagon screw, of the upper valve body, when the inner hexagon screw is taken out and the upper valve body and the lower valve body are prepared to be separated, the rotating plate rotates to drive the lower pressure rod to descend, so that the diaphragm assembly between the upper valve body and the lower valve body is separated, the effect of automatically separating the diaphragm assembly from the upper valve body after the upper valve body and the lower valve body are separated is achieved, manual separation of the diaphragm assembly is not needed, and time and labor are saved.
2. According to the invention, by arranging the telescopic rod and other devices, when the needle valve body is installed, the telescopic rod is firstly stretched into the second installation groove, at the moment, the lower end of the needle valve body is aligned with the central hole, then the needle valve body is vertically moved downwards to complete the installation of the needle valve body, and in the installation process, the lower end of the needle valve body can be always aligned with the central hole, so that the problem of poor sealing caused by abrasion of the lower end part of the needle valve body is avoided.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
FIG. 3 is an enlarged view of a portion B of FIG. 1;
FIG. 4 is an enlarged view of a portion C of FIG. 1;
FIG. 5 is a schematic structural view of the needle valve seat body and the socket head cap screw after being removed;
FIG. 6 is an enlarged view of a portion D of FIG. 5;
fig. 7 is a partially enlarged view of a portion E in fig. 5.
In the figure: 1. a lower valve body; 2. a fluid input port; 3. a rubber diaphragm; 4. a push rod sleeve; 5. a push rod; 6. an elastic rubber sleeve; 7. a membrane fixing plate; 701. a central bore; 8. a diaphragm assembly; 9. an upper valve body; 901. a first mounting groove; 902. a second mounting groove; 10. a diaphragm spring; 11. a needle valve seat body; 1101. an air source input port; 1102. an air source output port; 12. a protective cover; 13. a socket head cap screw; 14. a diaphragm pressing plate; 15. a compression screw; 16. a return spring; 17. a lower pressure lever; 1701. a groove; 1702. a rubber plate; 18. a hinge; 19. a rotating plate; 20. a telescopic rod; 2001. a first magnet; 21. a second magnet; 22. a needle valve body; 23. needle valve rubber; 24. a needle valve spring; 25. a top plate; 26. adjusting the screw rod; 27. locking the nut; 28. and (5) sealing rings.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clear and fully described, embodiments of the present invention are further described in detail below with reference to the accompanying drawings.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
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.
Example 1
Referring to fig. 1-7, a novel pneumatic pressure transmitter comprises a lower valve body 1 and an upper valve body 9, a fluid input port 2 is provided in the lower valve body 1, a pushing device is provided in the lower valve body 1 at a position corresponding to the upper end of the fluid input port 2, a needle valve seat body 11 is provided at the upper end of the upper valve body 9, a needle valve assembly is provided in the needle valve seat body 11, a protective cover 12 is provided at the upper end of the needle valve seat body 11, an air source input port 1101 and an air source output port 1102 are respectively provided at two sides of the needle valve seat body 11, a diaphragm fixing plate 7 is provided at the upper end of the pushing device, a diaphragm assembly 8 is provided on the diaphragm fixing plate 7, a diaphragm spring 10 is fixedly provided between the diaphragm fixing plate 7 and the upper valve body 9, the outer end of the diaphragm assembly 8 is provided between the lower valve body 1 and the upper valve body 9 through a plurality of hexagon socket head screws 13, a first mounting, a return spring 16 is fixedly arranged at the upper end inside the first mounting groove 901, a lower pressing rod 17 is fixedly arranged at the lower end of the return spring 16, a hinge 18 is arranged at one end of the first mounting groove 901, a rotating plate 19 is movably arranged on the hinge 18, the length of the rotating plate 19 positioned on the inner side of the hinge 18 is greater than that positioned on the outer side of the hinge 18, so that, in a natural state, the inner side of the rotating plate 19 is positioned at the lower end, a groove 1701 is formed at the position, corresponding to the rotating plate 19, of the lower pressing rod 17, one end of the rotating plate 19 extends into the groove 1701, a second mounting groove 902 is formed in the upper end face of the upper valve body 9, a telescopic rod 20 is fixedly arranged at the position, corresponding to the second mounting groove 902, at the lower end of the needle valve seat body 11, a first magnet 2001 is fixedly arranged at the lower end of the telescopic rod 20, a second magnet 21 is fixedly arranged at the bottom, the provision of the first magnet 2001 and the second magnet 21 ensures the stability of the connection between the needle valve seat body 11 and the upper valve body 9 after the needle valve seat body 11 is attached.
Referring to fig. 1 and 5, the pushing device includes a rubber diaphragm 3, a 4 push rod sleeve is disposed at an upper end of the rubber diaphragm 3, a push rod 5 is disposed inside the push rod sleeve 4, an elastic rubber sleeve 6 is disposed between an upper end of the push rod sleeve 4 and an upper end of the push rod 5, and an upper end surface of the push rod 5 abuts against a lower end surface of a diaphragm fixing plate 7.
Referring to fig. 1 and 5, a diaphragm pressing plate 14 is disposed on the diaphragm assembly 8, and a compression screw 15 is disposed between the diaphragm pressing plate 14 and the diaphragm fixing plate 7.
Referring to fig. 1 and 2, a rubber plate 1702 is fixedly disposed at the lower end of the lower pressing rod 17, which may be made of other elastic plate materials.
Referring to fig. 1 and 4, a central hole 701 is formed in the middle of the diaphragm fixing plate 7, the needle valve assembly includes a needle valve body 22, the lower end of the needle valve body 22 is disposed inside the central hole 701, the upper end of the needle valve body 22 is disposed inside the needle valve seat body 11, a needle valve rubber 23 is disposed between the needle valve seat body 11 and the needle valve body 22, a needle valve spring 24 is fixedly disposed at the upper end of the needle valve body 22, and a top plate 25 is fixedly disposed at the upper end of the needle valve spring 24.
Referring to fig. 5 and 7, the height of the lower end surface of the telescopic rod 20 from the upper valve body 9 after being extended is smaller than the height of the lower end surface of the needle valve body 22 from the upper valve body 9.
Referring to fig. 1 and 5, an adjusting screw 26 is fixedly provided at an upper end of the top plate 25, and a lock nut 27 is provided at an outer side of the adjusting screw 26.
Referring to fig. 1 and 5, a sealing ring 28 is disposed between the lower valve body 1 and the push rod sleeve 4.
When the invention is used, when hydraulic pressure change delta P is input from the fluid input port 2 of the lower valve body 1, the delta P acts on the rubber diaphragm 3, the rubber diaphragm 3 deforms upwards by a distance, the push rod 5 is jacked upwards by the same distance, the diaphragm fixing plate 7 is always tightly attached to the upper end part of the push rod 5 under the action of the diaphragm spring 10, so the push rod 5 also jacks the diaphragm fixing plate 7 upwards by a distance, when the diaphragm fixing plate 7 moves upwards, the upper end of the central hole 701 is contacted with the lower end part of the needle valve body 22, the e hole is closed, the needle valve body 22 moves upwards to be separated from the needle valve seat body 11, the air source input port 1101 is opened, air pressure of an air source enters the b cavity along the a hole and enters the d cavity through the c hole, the volume of the d cavity is increased under the action of pressure, the diaphragm assembly 8 moves downwards, and the needle valve seat body 11 moves downwards along with the diaphragm assembly, the channel between the air source input port 1101 and the d cavity is reduced, the flow of the compressed air entering the d cavity is reduced, the pressure of the d cavity generates pressure drop, the pressure acting on the diaphragm assembly 8 is reduced, the diaphragm assembly 8 moves upwards again under the action of the hydraulic pressure signal delta P, the process is carried out until the force of the air pressure of the d cavity acting on the diaphragm assembly 8 is balanced with the force of the hydraulic signal acting on the rubber diaphragm 3, the pressure change of the d cavity changes along with the change of the hydraulic input signal delta P, because the pressure-bearing area of the rubber diaphragm 3 and the pressure-bearing area of the diaphragm assembly 8 are fixed values, a fixed proportional relation exists between the pressure change of the d cavity and the hydraulic input signal delta P, the air pressure change value output by the d cavity is converted into the hydraulic input signal value, the hydraulic input signal value is displayed on a display instrument of a control console, the hydraulic pressure can be read on the control console, when the input pressure signal delta P of, the rubber diaphragm 3 is reset after the stress disappears, the diaphragm assembly 8 moves downwards under the action of the diaphragm spring 10, the lower end part of the needle valve seat body 11 leaves the upper end face of the central hole 701 of the diaphragm fixing plate 7, the passage is opened, the air pressure of the d cavity is exhausted into the atmosphere through the holes e, f, g and h, the output pressure signal is 0, meanwhile, the needle valve seat body 11 moves downwards, the air source input port 1101 and the passage of the d cavity are closed, and the air pressure is not input into the d cavity any more.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a novel pneumatic pressure transmitter, includes lower valve body (1) and last valve body (9), fluid input port (2) have been seted up to the inside of lower valve body (1), the inside of lower valve body (1) is corresponding to position department of fluid input port (2) upper end is provided with thrustor, the upper end of going up valve body (9) is provided with the needle valve seat body (11), the inside of needle valve seat body (11) is provided with needle valve assembly, the upper end of needle valve seat body (11) is provided with protecting cover (12), air supply input port (1101) and air supply delivery outlet (1102), its characterized in that have been seted up respectively to the both sides of needle valve seat body (11): a membrane fixing plate (7) is arranged at the upper end of the pushing device, a membrane assembly (8) is arranged on the membrane fixing plate (7), a membrane spring (10) is fixedly arranged between the membrane fixing plate (7) and the upper valve body (9), the outer end of the membrane assembly (8) is arranged between the lower valve body (1) and the upper valve body (9) through a plurality of inner hexagon screws (13), a first mounting groove (901) is formed in the position, corresponding to the inner hexagon screws (13), of the upper valve body (9), a return spring (16) is fixedly arranged at the upper end inside the first mounting groove (901), a lower pressing rod (17) is fixedly arranged at the lower end of the return spring (16), a hinge (18) is arranged at one end of the first mounting groove (901), a rotating plate (19) is movably arranged on the hinge (18), a groove (1701) is formed in the position, corresponding to the rotating plate (19), of the lower pressing rod (17), one end of the rotating plate (19) extends into the groove (1701), a second mounting groove (902) is formed in the upper end face of the upper valve body (9), an expansion rod (20) is fixedly arranged at the position, corresponding to the second mounting groove (902), of the lower end of the needle valve seat body (11), a first magnet (2001) is fixedly arranged at the lower end of the expansion rod (20), a second magnet (21) is fixedly arranged at the bottom end of the inner portion of the second mounting groove (902), and the first magnet (2001) and the second magnet (21) are opposite in magnetism.
2. The novel pneumatic pressure transmitter of claim 1, wherein: the pushing device comprises a rubber diaphragm (3), a push rod sleeve (4) is arranged at the upper end of the rubber diaphragm (3), a push rod (5) is arranged inside the push rod sleeve (4), an elastic rubber sleeve (6) is arranged between the upper end of the push rod sleeve (4) and the upper end of the push rod (5), and the upper end face of the push rod (5) is abutted to the lower end face of a diaphragm fixing plate (7).
3. The novel pneumatic pressure transmitter of claim 1, wherein: a diaphragm pressing plate (14) is arranged on the diaphragm assembly (8), and a compression screw (15) is arranged between the diaphragm pressing plate (14) and the diaphragm fixing plate (7).
4. The novel pneumatic pressure transmitter of claim 1, wherein: the lower end of the lower pressure lever (17) is fixedly provided with a rubber plate (1702).
5. The novel pneumatic pressure transmitter of claim 1, wherein: centre bore (701) have been seted up at the middle part of diaphragm fixed plate (7), needle valve subassembly includes needle valve body (22), the lower extreme setting of needle valve body (22) is in the inside of centre bore (701), the upper end setting of needle valve body (22) is in the inside of needle valve seat body (11), needle valve seat body (11) with be provided with needle valve rubber (23) between needle valve body (22), the upper end of needle valve body (22) is fixed and is provided with needle valve spring (24), the fixed roof (25) that is provided with in upper end of needle valve spring (24).
6. The novel pneumatic pressure transmitter of claim 5, wherein: the telescopic rod (20) extends to form a distance between the lower end face and the upper valve body (9), the height of the upper valve body (9) is smaller than that of the lower end face of the needle valve body (22), and the height of the upper valve body (9) is larger than that of the lower end face of the needle valve body.
7. The novel pneumatic pressure transmitter of claim 6, wherein: the upper end of the top plate (25) is fixedly provided with an adjusting screw rod (26), and the outer side of the adjusting screw rod (26) is provided with a locking nut (27).
8. The novel pneumatic pressure transmitter of claim 2, wherein: and a sealing ring (28) is arranged between the lower valve body (1) and the push rod sleeve (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011582000.9A CN112763127B (en) | 2020-12-28 | 2020-12-28 | Pneumatic pressure transmitter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011582000.9A CN112763127B (en) | 2020-12-28 | 2020-12-28 | Pneumatic pressure transmitter |
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| CN112763127A true CN112763127A (en) | 2021-05-07 |
| CN112763127B CN112763127B (en) | 2022-09-06 |
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| CN202011582000.9A Active CN112763127B (en) | 2020-12-28 | 2020-12-28 | Pneumatic pressure transmitter |
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Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2277013Y (en) * | 1996-05-14 | 1998-03-25 | 宋秀峰 | Automatic close valve of gas pipeline |
| CN200982473Y (en) * | 2006-11-30 | 2007-11-28 | 新疆天业（集团）有限公司 | Automatic backwash control valve |
| CN101121054A (en) * | 2006-08-11 | 2008-02-13 | 深圳迈瑞生物医疗电子股份有限公司 | Expiratory valve |
| CN201302500Y (en) * | 2008-11-28 | 2009-09-02 | 孔志能 | Miniature manometer for membrane type plastic clamp plate movement |
| CN201837495U (en) * | 2010-03-17 | 2011-05-18 | 杭州吉星仪表机械有限公司 | Diaphragm type plastic case pressure gauge |
| CN202210010U (en) * | 2011-09-28 | 2012-05-02 | 杭州吉星仪表机械有限公司 | Diaphragm type compression gauge having nonmetal and metal combined type watchcase |
| CN203274648U (en) * | 2013-05-16 | 2013-11-06 | 曲阜天博汽车零部件制造有限公司 | Automatic alignment measuring device of thermal bimetal sheet type temperature switch |
| CN204164455U (en) * | 2014-10-13 | 2015-02-18 | 杭州科技职业技术学院 | A kind of needle valve reduction valve |
| CN209354723U (en) * | 2018-12-29 | 2019-09-06 | 沈阳鑫榆林石油机械有限公司 | For detecting the pneumatic pressure transmitter of highly pressurised liquid |
| CN209387191U (en) * | 2019-04-02 | 2019-09-13 | 山东福瑞德测控系统有限公司 | A kind of sensor assembling structure of novel pressure differential pressure one |
| CN209430634U (en) * | 2018-12-19 | 2019-09-24 | 重庆西查奇科技有限公司 | A kind of automobile diaphragm spring clutch cap assembly |
| CN210089921U (en) * | 2019-08-16 | 2020-02-18 | 江苏三蜂机器人有限公司 | Diaphragm type pressure transmitter |
| CN210426859U (en) * | 2019-10-15 | 2020-04-28 | 广州西森自动化控制设备有限公司 | Pressure transmitter |
| CN210953218U (en) * | 2019-11-07 | 2020-07-07 | 山东中自仪测控技术有限公司 | Pressure transmitter base |
-
2020
- 2020-12-28 CN CN202011582000.9A patent/CN112763127B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2277013Y (en) * | 1996-05-14 | 1998-03-25 | 宋秀峰 | Automatic close valve of gas pipeline |
| CN101121054A (en) * | 2006-08-11 | 2008-02-13 | 深圳迈瑞生物医疗电子股份有限公司 | Expiratory valve |
| CN200982473Y (en) * | 2006-11-30 | 2007-11-28 | 新疆天业（集团）有限公司 | Automatic backwash control valve |
| CN201302500Y (en) * | 2008-11-28 | 2009-09-02 | 孔志能 | Miniature manometer for membrane type plastic clamp plate movement |
| CN201837495U (en) * | 2010-03-17 | 2011-05-18 | 杭州吉星仪表机械有限公司 | Diaphragm type plastic case pressure gauge |
| CN202210010U (en) * | 2011-09-28 | 2012-05-02 | 杭州吉星仪表机械有限公司 | Diaphragm type compression gauge having nonmetal and metal combined type watchcase |
| CN203274648U (en) * | 2013-05-16 | 2013-11-06 | 曲阜天博汽车零部件制造有限公司 | Automatic alignment measuring device of thermal bimetal sheet type temperature switch |
| CN204164455U (en) * | 2014-10-13 | 2015-02-18 | 杭州科技职业技术学院 | A kind of needle valve reduction valve |
| CN209430634U (en) * | 2018-12-19 | 2019-09-24 | 重庆西查奇科技有限公司 | A kind of automobile diaphragm spring clutch cap assembly |
| CN209354723U (en) * | 2018-12-29 | 2019-09-06 | 沈阳鑫榆林石油机械有限公司 | For detecting the pneumatic pressure transmitter of highly pressurised liquid |
| CN209387191U (en) * | 2019-04-02 | 2019-09-13 | 山东福瑞德测控系统有限公司 | A kind of sensor assembling structure of novel pressure differential pressure one |
| CN210089921U (en) * | 2019-08-16 | 2020-02-18 | 江苏三蜂机器人有限公司 | Diaphragm type pressure transmitter |
| CN210426859U (en) * | 2019-10-15 | 2020-04-28 | 广州西森自动化控制设备有限公司 | Pressure transmitter |
| CN210953218U (en) * | 2019-11-07 | 2020-07-07 | 山东中自仪测控技术有限公司 | Pressure transmitter base |
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| CN112763127B (en) | 2022-09-06 |
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