CN113155350B - Direct-mounted single-flange differential pressure transmitter - Google Patents
Direct-mounted single-flange differential pressure transmitter Download PDFInfo
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- CN113155350B CN113155350B CN202110359778.1A CN202110359778A CN113155350B CN 113155350 B CN113155350 B CN 113155350B CN 202110359778 A CN202110359778 A CN 202110359778A CN 113155350 B CN113155350 B CN 113155350B
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- plate
- differential pressure
- pressure transmitter
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L13/00—Devices or apparatus for measuring differences of two or more fluid pressure values
- G01L13/06—Devices or apparatus for measuring differences of two or more fluid pressure values using electric or magnetic pressure-sensitive elements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/06—Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
- G01L19/0672—Leakage or rupture protection or detection
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention relates to a differential pressure transmitter, in particular to a direct-mounted single-flange differential pressure transmitter. The connecting device comprises a differential pressure transmitter body and a connecting device arranged at the bottom of the differential pressure transmitter body and used for installing the differential pressure transmitter body, wherein the bottom of the differential pressure transmitter body is provided with a connecting plate, and the connecting device comprises a connecting seat, a switching plate and a connecting pipe. According to the invention, the connecting plates are rotationally connected, and the friction force generated by the contact of the fixed screw rod and the outer walls of the connecting plates is utilized to fix the connecting plates, so that the angle of the differential pressure transmitter body is adjusted to adapt to pipeline installation of liquid fluid media in various states, and the problem that data displayed on a display screen on the differential pressure transmitter body is inclined due to different pipeline installation angles is solved.
Description
Technical Field
The invention relates to a differential pressure transmitter, in particular to a direct-mounted single-flange differential pressure transmitter.
Background
At present, pressure measurement and field control in the industries of chemical industry, petroleum, steel, electric power, light industry and the like are widely applied to automatic instruments, wherein a differential pressure transmitter is used as a detection transformation part of a control system to convert process parameters such as differential pressure of liquid into DC4 mA-20 mA current standard signals.
The differential pressure transmitter is a typical self-balancing detecting instrument, and overcomes the influence of adverse factors such as element materials, processing technology and the like by using the working principle of negative feedback.
However, a general direct-mounted single-flange differential pressure transmitter is directly fixed with a pipeline for conveying a liquid fluid medium, and when the angle of the pipeline changes, the differential pressure transmitter also changes along with the pipeline and cannot be adjusted, so that data displayed on the differential pressure transmitter is skewed, and the differential pressure transmitter is inconvenient for a worker to observe.
Disclosure of Invention
The invention aims to provide a direct-mounted single-flange differential pressure transmitter, which aims to solve the problem that data displayed on the differential pressure transmitter is skewed and cannot be adjusted in the background technology.
For realizing above-mentioned purpose, provide a direct-mounted formula single flange differential pressure transmitter, include the differential pressure transmitter body and set up the connecting device who carries out the installation to it in differential pressure transmitter body bottom, the bottom of differential pressure transmitter body is equipped with the connecting plate, connecting device includes at least:
the connecting seat is internally of a hollow structure so as to form a cavity for conveying a liquid fluid medium into the connecting plate, the liquid fluid medium is conveyed into the differential pressure transmitter body through the connecting plate, and a single flange plate is arranged at the bottom of the connecting seat;
the adapter plates are arranged at the top of the connecting seat, two adapter plates are arranged, a cavity which is rotatably connected with the connecting plate is formed between the two adapter plates, and the connecting plate is fixed in an extrusion manner through a fixing device arranged on one side of one of the adapter plates;
the connecting pipe is arranged between the connecting plate and the connecting seat and used for connecting the cavity in the connecting seat with the connecting plate, and the connecting pipe is rotatably connected with the connecting plate.
As the further improvement of the technical scheme, the connecting pipe is close to one side of the inner wall of the connecting plate and is provided with the sealing ring, the position of the connecting plate corresponding to the sealing ring is provided with a groove which is spliced with the sealing ring, and the inner wall of the connecting pipe and the connecting plate at the rotary joint is sealed through the splicing of the sealing ring and the groove.
As a further improvement of the technical scheme, a negative pressure plate is fixedly connected to one side end, close to the sealing ring, of the connecting pipe, the negative pressure plate is movably connected with the sealing ring through a sliding rod, and a negative pressure spring is installed at the sliding position.
As a further improvement of the technical scheme, the fixing device comprises a fixing screw rod, the fixing screw rod is in threaded connection with the adapter plate and forms a threaded connection point, the threaded connection point is located at an eccentric position on a semicircular part at the bottom of the connecting plate, a rotating block is fixedly connected to the end part of the outer side of the fixing screw rod, and the radius of the rotating block is larger than that of the fixing screw rod.
As the further improvement of this technical scheme, lead screw's outside is equipped with the reinforcement, and the reinforcement specifically includes the atress board, the atress board sets up the inboard at the turning block to with lead screw swing joint, one side that the atress board is relative is equipped with the driving plate, and the atress board is close to one side fixedly connected with depression bar of driving plate, depression bar and keysets sliding connection, the inboard rotation of driving plate is connected with the switching piece, the switching piece with be close to the keysets fixed connection of driving plate one side, the inside sliding connection of the keysets of this side has the anchor strut, the anchor strut rotates with the driving plate to be connected.
It is worth to say that, the fixed screw rod and the reinforcing rod are all equipped with the clutch blocks near the keysets one end.
As a further improvement of the technical scheme, the end part of the pressure lever adopts a hemispherical structure.
As a further improvement of the technical scheme, a return spring is arranged between the stress plate and the adapter plate close to one side of the stress plate.
As a further improvement of the technical scheme, the positions on two sides between the adapter plates are respectively provided with a protection seat, the protection seat is connected with the pressure rod in a sliding manner, the top of the protection seat is movably connected with a buffer plate through a slide rod, and a buffer spring is arranged between the buffer plate and the protection seat.
As a further improvement of the technical scheme, the bottom of the single flange plate is provided with an anti-leakage cavity for absorbing leakage flow liquid fluid medium, the bottom of one side of the single flange plate is provided with an elastic plate, and the anti-leakage cavity is filled with sponge.
As a further improvement of the technical scheme, the leakage-proof cavity is in a U-shaped annular structure with a downward opening in the cross section.
Compared with the prior art, the invention has the following beneficial effects:
1. in this direct-mounted single-flange differential pressure transmitter, through making the connecting plate rotate to connect to utilize the frictional force that solid lead screw and connecting plate outer wall contact produced to fix it, thereby realize adjusting the angle of differential pressure transmitter body, with the piping erection of the liquid fluid medium under the adaptation various states, solve because of the different data emergence crooked problem that lead to the display screen to show on the differential pressure transmitter body of piping erection angle.
2. In this single flange differential pressure transmitter of direct-mounted formula, can seal the gap department that produces with the recess laminating through the sealing ring, and then solve because of long-time rotation leads to connecting pipe and connecting plate to produce the problem that the gap takes place to leak.
3. In this direct-mounted single-flange differential pressure transmitter, carry out the centre gripping through the anchor strut and the cooperation of solid fixed screw to the connecting plate, form the clamping-force on the basis of frictional force to consolidate the fixed of connecting plate, solid fixed screw all is equipped with the clutch blocks with the anchor strut near keysets one end simultaneously, and the frictional force when increasing the contact through the clutch blocks further improves the stability fixed to the connecting plate.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an exploded view of the overall structure of the present invention;
FIG. 3 is an exploded view of the differential pressure transmitter body structure of the present invention;
FIG. 4 is a schematic view of the connecting device of the present invention;
FIG. 5 is a schematic view of a connecting tube according to the present invention;
FIG. 6 is a schematic view of the fixing device of the present invention;
FIG. 7 is a schematic structural diagram of a stress plate according to the present invention;
FIG. 8 is a schematic view of the structure of the driving plate of the present invention;
FIG. 9 is a schematic view of the protective seat structure of the present invention;
FIG. 10 is a schematic cross-sectional view of a single flange of the present invention;
fig. 11 is a schematic cross-sectional structure of the connecting device of the present invention.
The various reference numbers in the figures mean:
100. a differential pressure transmitter body;
110. a connecting plate;
120. a connecting pipe; 121. a seal ring; 1211. a negative pressure plate; 1212. a negative pressure spring;
200. a connecting device;
210. a connecting seat; 211. an adapter plate; 212. a single flange plate; 2121. a leakage-proof cavity; 2122. an elastic plate; 213. a protective seat; 2131. a buffer plate; 2132. a buffer spring;
220. a fixing device; 221. a stress plate; 2211. a pressure lever; 2212. a return spring; 222. a drive plate; 2221. a transfer block; 2222. a reinforcing rod; 223. fixing the screw rod; 2231. a friction block; 2232. and (6) rotating the block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Example 1
Referring to fig. 1-4, an object of the present embodiment is to provide a direct-mounted single-flange differential pressure transmitter, which includes a differential pressure transmitter body 100 and a connecting device 200 disposed at the bottom of the differential pressure transmitter body 100 for installing the differential pressure transmitter body, wherein the bottom of the differential pressure transmitter body 100 is provided with a connecting plate 110, and the connecting device 200 at least includes:
the connecting base 210 is hollow inside the connecting base 210 to form a cavity for conveying a liquid fluid medium into the connecting plate 110, and the liquid fluid medium is conveyed into the differential pressure transmitter body 100 through the connecting plate 110, and a single flange plate 212 is arranged at the bottom of the connecting base 210;
the adapter plates 211 are arranged on the top of the connecting seat 210, two adapter plates 211 are arranged, a cavity which is rotatably connected with the connecting plate 110 is formed between the two adapter plates 211, and the connecting plate 110 is fixed in an extrusion manner through a fixing device 220 arranged on one side of one adapter plate 211;
connecting pipe 120, connecting pipe 120 is set between connecting plate 110 and connecting seat 210, and is used for connecting the cavity in connecting seat 210 with connecting plate 110, and connecting pipe 120 is connected with connecting plate 110 in a rotating manner, during the use, the liquid fluid medium in the pipeline for transporting liquid fluid medium such as oil tank enters connecting pipe 120 through the cavity for transporting liquid fluid medium in 110, then enters connecting plate 110 through connecting pipe 120, enters differential pressure transmitter body 100 through connecting plate 110, the specific working principle of differential pressure transmitter body 100 is as follows:
the differential pressure transmitter body 100 is internally provided with a pressure sensor and two-side isolation diaphragms, the two-side isolation diaphragms can directly receive the pressure of a liquid fluid medium entering the differential pressure transmitter body 100, then the pressure is transmitted to a measuring element of the pressure sensor through sealing liquid in the diaphragms, measured differential pressure signals are converted into electric signals corresponding to the differential pressure signals, and then the electric signals are transmitted to the converter and then amplified into standard electric signals to be output to a display screen for data display.
The fixing device 220 includes a fixing screw rod 223, the fixing screw rod 223 is in threaded connection with the adapter plate 211 to form a threaded connection point, the threaded connection point is located at an eccentric position on a semicircular part at the bottom of the connecting plate 110, a rotating block 2232 is fixedly connected to an end part of the outer side of the fixing screw rod 223, and the radius of the rotating block 2232 is larger than that of the fixing screw rod 223.
In this embodiment, before the connecting device 200 is used, the single flange 212 is matched with the bolt to directly connect the integrated structure formed by the differential pressure transmitter body 100 and the connecting device 200 with a pipeline for conveying liquid fluid media, such as an oil tank;
after the connection is completed, the following cases are divided:
in the first situation, when a pipeline for conveying a liquid fluid medium is conveyed horizontally, namely in a normal state, the differential pressure transmitter body 100 and the connecting plate 110 are located at a position perpendicular to the single flange 212 and are fixed by friction force generated by contact of the fixing screw 223 and the outer wall of the connecting plate 110, so that data displayed by the differential pressure transmitter body 100 is guaranteed to be in a normal state (the normal state refers to a state which is directly observed when people observe, the data are horizontally arranged at the moment, and the data do not need to be observed by twisting heads), and therefore workers can conveniently observe data displayed on a display screen on the differential pressure transmitter body 100;
and in the second situation, when the pipeline for conveying the liquid fluid medium is conveyed in a non-horizontal manner, the fixing screw rod 223 needs to be unscrewed at the moment, then the differential pressure transmitter body 100 and the connecting plate 110 are rotated, the angle of the display screen on the differential pressure transmitter body 100 is adjusted through rotation, the rotation can be stopped until the data displayed by the display screen is in a normal state, then the fixing screw rod 223 is screwed, and the data is fixed through the friction force generated by the contact of the fixing screw rod 223 and the outer wall of the connecting plate 110, so that the angle of the differential pressure transmitter body 100 is adjusted, the pipeline is suitable for the pipeline installation of the liquid fluid medium in various states, and the problem that the data displayed by the display screen on the differential pressure transmitter body 100 is skewed due to different pipeline installation angles is solved.
Example 2
In order to ensure the sealing performance of the connection portion between the connection tube 120 and the inner wall of the connection plate 110, the embodiment is modified based on embodiment 1, please refer to fig. 5, wherein:
the sealing ring 121 is installed on one side of the connecting pipe 120 close to the inner wall of the connecting plate 110, a groove inserted with the sealing ring 121 is formed in the position, corresponding to the sealing ring 121, of the connecting plate 110, and the inner wall of the rotary joint of the connecting pipe 120 and the connecting plate 110 is sealed through the insertion of the sealing ring 121 and the groove.
Among them, the sealing ring 121 is preferably of a rubber structure.
In addition, a negative pressure plate 1211 is fixedly connected to one side of the connecting pipe 120 close to the sealing ring 121, the negative pressure plate 1211 is movably connected to the sealing ring 121 through a sliding rod, and a negative pressure spring 1212 is installed at the sliding position.
When the sealing ring 121 in this embodiment is used specifically, the sealing ring 121 is tightly attached to the inner wall of the groove all the time under the elastic force of the negative pressure spring 1212, so that when the connecting pipe 120 and the connecting plate 110 rotate, the sealing ring 121 is attached to the groove to seal the generated gap, and further the problem of leakage occurring in the gap generated between the connecting pipe 120 and the connecting plate 110 due to long-time rotation is solved.
Example 3
In order to improve the stability of the fixing screw 223, the present embodiment is improved on the basis of embodiment 1, please refer to fig. 6-9 and fig. 11, wherein:
the outside of fixed lead screw 223 is equipped with the reinforcement, the reinforcement specifically includes atress board 221, atress board 221 sets up the inboard at turning block 2232, and with fixed lead screw 223 swing joint, the one side that atress board 221 is relative is equipped with driving plate 222, and one side fixedly connected with depression bar 2211 that atress board 221 is close to driving plate 222, depression bar 2211 and adapter plate 211 sliding connection, the inboard of driving plate 222 is rotated and is connected with adapter block 2221, adapter block 2221 and the adapter plate 211 fixed connection who is close to driving plate 222 one side, the inside sliding connection of the adapter plate 211 of this side has strengthening link 2222, strengthening link 2222 rotates with driving plate 222 and is connected.
When the reinforcing member of this embodiment is used specifically, first, when the fixing screw rod 223 is screwed, the force-bearing plate 221 is driven to move close to the transmission plate 222, and the transmission plate 222 is pressed by the pressing rod 2211, and in order to adapt to the change of the position of the contact point between the transmission plate 222 and the pressing rod 2211 when the transmission plate 222 rotates, the end portion of the pressing rod 2211 adopts a hemispherical structure, the transmission plate 222 rotates counterclockwise around the transition block 2221 after being pressed, please refer to fig. 11, when the transmission plate 222 rotates counterclockwise, the reinforcing rod 2222 is pressed to move close to the connecting plate 110, so as to cooperate with the fixing screw rod 223 to clamp the connecting plate 110, a clamping force is formed on the basis of a friction force, so as to reinforce the fixing of the connecting plate 110, meanwhile, friction blocks 2231 are arranged at one ends of the fixing screw rod 223 and the reinforcing rod 2222 close to the transition plate 211, the friction force during contact is increased by the friction blocks 2231, and the stability of fixing the connecting plate 110 is further improved.
Further, in order to synchronize the movement of the force-bearing plate 221 and the rotating block 2232, a return spring 2212 is installed between the force-bearing plate 221 and the adapter plate 211 near one side thereof.
Still further, the positions located at both sides between the adapter plates 211 are all provided with the protection seat 213, the protection seat 213 is slidably connected with the pressure rod 2211, the top of the protection seat 213 is movably connected with the buffer plate 2131 through a sliding rod, a buffer spring 2132 is installed between the buffer plate 2131 and the protection seat 213, the pressure rod 2211 is wrapped through the protection seat 213, the protection of the pressure rod 2211 is realized, meanwhile, in the rotating process of the connecting plate 110, when the pressure rod contacts the protection seat 213 soon, the pressure rod contacts the buffer plate 2131 firstly, and the pressure on the buffer plate 2131 is buffered through the buffer spring 2132.
Example 4
In order to protect the liquid fluid medium from leakage, this embodiment is improved on the basis of embodiment 1, and refer to fig. 10, in which:
the bottom of the single flange 212 is provided with a leakage-proof cavity 2121 for absorbing leakage fluid medium, the bottom of one side is provided with an elastic plate 2122, and sponge is filled in the leakage-proof cavity 2121, wherein the leakage-proof cavity 2121 is in a U-shaped ring structure with a downward opening in cross section, when the joint of the single flange 212 leaks, the leaked fluid medium is absorbed by the sponge in the leakage-proof cavity 2121, the sponge expands after being absorbed, and then the elastic plate 2122 is squeezed to expand outwards to fill gaps at the joint, so that a sealing effect is achieved, and the problem that the leakage fluid medium cannot be protected after being leaked is solved.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, which fall within the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The utility model provides a direct-mounted formula single flange differential pressure transmitter, includes differential pressure transmitter body (100) and sets up connecting device (200) of installing it in differential pressure transmitter body (100) bottom, its characterized in that: the bottom of differential pressure transmitter body (100) is equipped with connecting plate (110), connecting device (200) include at least:
the connecting base (210) is hollow, so that a cavity for conveying a liquid fluid medium into the connecting plate (110) is formed, the liquid fluid medium is conveyed into the differential pressure transmitter body (100) through the connecting plate (110), and a single flange plate (212) is arranged at the bottom of the connecting base (210);
the connecting device comprises adapter plates (211), wherein the adapter plates (211) are arranged at the top of the connecting seat (210), two adapter plates (211) are arranged, a cavity which is rotatably connected with the connecting plate (110) is formed between the two adapter plates (211), and the connecting plate (110) is fixed in an extrusion mode through a fixing device (220) arranged on one side of one adapter plate (211);
the connecting pipe (120) is arranged between the connecting plate (110) and the connecting seat (210), and is used for connecting a cavity in the connecting seat (210) with the connecting plate (110), and the connecting pipe (120) is rotatably connected with the connecting plate (110);
the fixing device (220) comprises a fixing screw rod (223), the fixing screw rod (223) is in threaded connection with the adapter plate (211) to form a threaded connection point, the threaded connection point is located at an eccentric position on a semicircular part at the bottom of the connecting plate (110), a rotating block (2232) is fixedly connected to the end part of the outer side of the fixing screw rod (223), and the radius of the rotating block (2232) is larger than that of the fixing screw rod (223);
the outside of fixed lead screw (223) is equipped with the reinforcement, and the reinforcement specifically includes atress board (221), atress board (221) set up the inboard at rotating block (2232) to with fixed lead screw (223) swing joint, the one side that atress board (221) is relative is equipped with driving plate (222), and one side fixedly connected with depression bar (2211) that driving plate (222) are close to in atress board (221), depression bar (2211) and adapter plate (211) sliding connection, the inboard rotation of driving plate (222) is connected with adapter block (2221), adapter block (2221) and adapter plate (211) fixed connection that is close to driving plate 222222 one side, the inside sliding connection of adapter plate (211) of this side has strengthening rod (2222), strengthening rod (2222) and driving plate (222) rotation are connected.
2. The direct mount, single flange differential pressure transmitter of claim 1, wherein: sealing ring (121) are installed to one side that connecting pipe (120) are close to connecting plate (110) inner wall, and the position that connecting plate (110) corresponds sealing ring (121) sets up the recess of pegging graft with sealing ring (121), and the grafting through sealing ring (121) and recess is sealed connecting pipe (120) and connecting plate (110) rotate the inner wall of junction.
3. The direct mount, single flange differential pressure transmitter of claim 2, wherein: one side end of the connecting pipe (120) close to the sealing ring (121) is fixedly connected with a negative pressure plate (1211), the negative pressure plate (1211) is movably connected with the sealing ring (121) through a sliding rod, and a negative pressure spring (1212) is installed at the sliding position.
4. The direct mount, single flange differential pressure transmitter of claim 1, wherein: the end part of the pressure rod (2211) adopts a hemispherical structure.
5. The direct mount, single flange differential pressure transmitter of claim 1, wherein: and a return spring (2212) is arranged between the stress plate (221) and the adapter plate (211) close to one side of the stress plate.
6. The direct mount single flange differential pressure transmitter of claim 1, wherein: the protection seat (213) is arranged at the positions on two sides between the adapter plates (211), the protection seat (213) is connected with the pressure rod (2211) in a sliding mode, the top of the protection seat (213) is movably connected with a buffer plate (2131) through a sliding rod, and a buffer spring (2132) is arranged between the buffer plate (2131) and the protection seat (213).
7. The direct mount, single flange differential pressure transmitter of claim 1, wherein: the bottom of the single flange plate (212) is provided with an anti-leakage cavity (2121) for absorbing leakage fluid medium, the bottom of one side of the single flange plate is provided with an elastic plate (2122), and the anti-leakage cavity (2121) is filled with sponge.
8. The direct mount single flange differential pressure transmitter of claim 7, wherein: the anti-leakage cavity (2121) is of a U-shaped ring-shaped structure with a downward opening in the cross section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110359778.1A CN113155350B (en) | 2021-04-02 | 2021-04-02 | Direct-mounted single-flange differential pressure transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110359778.1A CN113155350B (en) | 2021-04-02 | 2021-04-02 | Direct-mounted single-flange differential pressure transmitter |
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| Publication Number | Publication Date |
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| CN113155350A CN113155350A (en) | 2021-07-23 |
| CN113155350B true CN113155350B (en) | 2022-10-28 |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6248645B2 (en) * | 2014-01-22 | 2017-12-20 | 竹中電子工業株式会社 | Pipe liquid detection sensor |
| CN204286516U (en) * | 2014-12-23 | 2015-04-22 | 上海肯特仪表股份有限公司 | Double-purpose electromagnetic flowmeter |
| EP3712859A1 (en) * | 2018-05-03 | 2020-09-23 | Francotyp-Postalia GmbH | Method for determining the inclination of a pivotable display |
| CN210108592U (en) * | 2019-06-27 | 2020-02-21 | 天津电传富华科技有限公司 | Mounting mechanism of differential pressure transmitter |
| CN211085548U (en) * | 2019-12-24 | 2020-07-24 | 杨开宏 | Digital display type differential pressure transmitter |
| CN111426414B (en) * | 2020-06-10 | 2020-10-20 | 南京沃天科技有限公司 | Pressure transmitter base with gluing boss |
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