CN112212938A - Input type liquid level transmitter - Google Patents
Input type liquid level transmitter Download PDFInfo
- Publication number
- CN112212938A CN112212938A CN202010846070.4A CN202010846070A CN112212938A CN 112212938 A CN112212938 A CN 112212938A CN 202010846070 A CN202010846070 A CN 202010846070A CN 112212938 A CN112212938 A CN 112212938A
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- sleeve
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- mounting groove
- connecting plate
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/14—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measurement of pressure
- G01F23/18—Indicating, recording or alarm devices actuated electrically
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
- B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
- B65H75/44—Constructional details
- B65H75/4481—Arrangements or adaptations for driving the reel or the material
- B65H75/4486—Electric motors
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The invention discloses a drop-in type liquid level transmitter, which relates to the field of liquid level transmitters and comprises a liquid level transmitter body and a first connecting plate, wherein the liquid level transmitter body comprises a junction box, a waterproof conducting wire and a liquid level probe, the first connecting plate is provided with a first mounting hole, one end of the junction box is fixedly arranged on the inner side wall of the first mounting hole, a first connecting electrode is arranged in the first mounting hole, the first connecting electrode is fixedly arranged at one end of the junction box, the bottom of the first connecting plate is provided with a third mounting hole which is communicated with the first mounting hole, a second connecting electrode is arranged in the third mounting hole, the bottom of the first connecting electrode is provided with a first mounting groove, one end of the second connecting electrode is penetrated in the first mounting groove, the bottom of the first connecting plate is provided with a winding drum, the waterproof conducting wire is wound on the winding drum, the second mounting hole, this input type liquid level changer, convenient to use, the function is various, has good development prospect.
Description
Technical Field
The invention relates to the field of liquid level transmitters, in particular to a drop-in type liquid level transmitter.
Background
The input liquid level sensor is a pressure sensor for measuring liquid level, based on the principle that the static pressure of the measured liquid is proportional to the height of the liquid, an isolated diffused silicon sensitive element or a ceramic capacitance pressure sensitive sensor is adopted to convert the static pressure into an electric signal, and the electric signal is converted into a standard electric signal through temperature compensation and linear correction. Temperature compensation and linear correction are carried out. And converting into 4-20mADC standard current signal and outputting. The sensor part of the input type liquid level transmitter can be directly put into liquid, the transmitter part can be fixed by a flange or a bracket, the installation and the use are very convenient, and the input type liquid level transmitter can convert the change of various level parameters into standard current signals and remotely transmit the standard current signals to an operation control room for a secondary instrument or a computer to carry out centralized display, alarm or automatic control. Its good structure and mounting means, the liquid level under the special conditions such as applicable high temperature, high pressure, strong corrosion, easy crystallization, prevent blockking up, prevent cold knot and solid powdery, granular material, the continuous detection of material level or material level, but the wide application is in the detection control of various industrial processes, its characteristics are simple structure: no movable or elastic element is arranged, so the reliability is extremely high, the maintenance amount is extremely small, and the installation is convenient: the built-in structure particularly shows this feature, without any special tools, with convenient adjustment: the zero-position potentiometer and the measuring range potentiometer can randomly perform zero-position transfer or measuring range change in an effective liquid level detection range, the two adjustments are not influenced mutually, and the application is wide; the liquid level measuring device is suitable for liquid level measurement of media such as high-temperature and high-pressure media, strong corrosion media and the like, and has main technical indexes and effective detection ranges: 0-0.2-20m, precision: 0.5 level, 1 level, 1.5 level, pressure bearing range: negative pressure, normal pressure, high pressure (below 32 MPa), working temperature: -50 to 240 ℃, ambient temperature: -20 to 75 ℃, suitable media: acid, alkali, salt or any medium which does not corrode polytetrafluoroethylene, and outputs signals: 4-20mA, two-wire system, power supply: load resistance 0-750 Ω DC24V, fixed: screw thread installation M20 is multiplied by 1.5, M27 is multiplied by 2 flange installation DN15, DN25, DN50 and DN80, and the site display: analog display 0-100%, digital display, field depth.
However, input type liquid level transmitter needs the user to dismantle and install it often at the in-process that uses, connecting device on the current input type liquid level transmitter is comparatively complicated during the operation, and then need consume a large amount of times of user and dismantle and install it, great reduction user's work efficiency and the connecting piece model when its installation are all fixed, restriction is great during the installation, simultaneously, current input type liquid level transmitter still needs the manual work to roll waterproof wire when using, great reduction user's work efficiency.
Disclosure of Invention
The invention aims to provide a drop-in liquid level transmitter, which solves the problems that the prior drop-in liquid level transmitter provided in the background technology needs a user to frequently disassemble and assemble the drop-in liquid level transmitter, the operation of a connecting device on the prior drop-in liquid level transmitter is complex, and further the user needs to spend a great deal of time to disassemble and assemble the drop-in liquid level transmitter, the working efficiency of the user is greatly reduced, the types of connecting pieces during installation are fixed, the limitation is large during installation, and meanwhile, the prior drop-in liquid level transmitter needs to manually roll a waterproof wire during use, so that the working efficiency of the user is greatly reduced.
In order to achieve the purpose, the invention provides the following technical scheme: input type liquid level changer, including liquid level changer body and connecting plate one, the liquid level changer body includes terminal box, waterproof wire and liquid level probe, set up mounting hole one on the connecting plate one, the one end fixed mounting of terminal box is in on the inside wall of mounting hole one, be provided with connecting electrode one in the mounting hole one, connecting electrode fixed mounting is in the one end of terminal box, the bottom of connecting plate one is provided with mounting hole three, mounting hole three with mounting hole one intercommunication, be provided with connecting electrode two in the mounting hole three, the bottom of connecting electrode one is provided with mounting groove one, the one end of connecting electrode two is worn to establish in the mounting groove one, the bottom of connecting plate one is provided with the reel, waterproof wire twines on the reel, be provided with mounting hole two on the reel, the one end of waterproof wire is passed mounting hole two fixed mounting is in the other end of connecting electrode two On, the bottom of reel is provided with mounting groove two, fixed mounting has the axis of rotation on the inside wall of mounting groove two, the one end of axis of rotation is rotated and is installed connecting plate two, the top of connecting plate two is provided with mounting groove three, be fixed with the motor case on the inside wall of mounting groove three, be provided with mounting groove four on the inside wall of motor case, fixed mounting has the motor on the inside wall of mounting groove four.
Preferably, a first through hole is formed in the second connecting plate, a third through hole is formed in a connecting area between the motor box and the second connecting plate, the third through hole is communicated with the first through hole, an output shaft of the motor penetrates through the first through hole, a transmission belt is arranged in the first through hole, one end of the transmission belt is sleeved on the output shaft of the motor, and the other end of the transmission belt is sleeved at one end of the rotating shaft.
Preferably, a second through hole is formed in the second connecting plate, the other end of the waterproof wire penetrates through the second through hole, and the liquid level probe is fixedly installed at the other end of the waterproof wire.
Preferably, the top of connecting plate one is provided with mounting groove five, fixed mounting has connecting device on the five inside walls of mounting groove, connecting device includes sleeve one, connecting rod, sealed pad, sleeve two, sleeve three and elasticity clamping piece.
Preferably, the one end fixed mounting of connecting rod is in on the inside wall of mounting groove five, the bottom of sleeve one is provided with through-hole four, sleeve one passes through-hole four sets are established on the connecting rod, sealed pad fixed mounting be in on the other end of connecting rod.
Preferably, the bottom of the sleeve III is provided with a mounting groove VI, the sleeve III is fixedly mounted at the top of the sleeve I through the mounting groove VI, and one end of the sleeve III is provided with a mounting groove VII.
Preferably, one end of the elastic clamping piece is fixedly installed on the inner side wall of the mounting groove seven, an internal thread is arranged on the inner side wall of the sleeve II, and an external thread is arranged on the outer side wall of the sleeve III.
Preferably, the second sleeve is sleeved on the third sleeve through the mutual matching of the internal thread and the external thread.
Preferably, the outer side wall of the second sleeve is provided with anti-skid lines, and the second connecting plate is provided with fixing holes.
The invention has the technical effects and advantages that:
1. the user can rotate the second sleeve firstly to relieve the extrusion of the two pairs of elastic clamping pieces of the second sleeve, then the user can penetrate the connecting column which is used for installing the connecting device outside into the third sleeve, then the user can rotate the second sleeve again, the second sleeve moves on the third sleeve through the mutual matching of the internal thread and the external thread, and the inner side wall of the second sleeve extrudes the elastic clamping pieces, so that the elastic clamping pieces can fix the connecting column, and further the user can change the closing degree of the elastic clamping pieces through rotating the second sleeve, so that the connecting column can be connected with connecting columns of different sizes, and the connecting device can be installed conveniently by the user.
2. The motor is arranged on the second connecting plate, the rotating shaft can be driven to rotate through the driving belt after the motor is electrified to work, the winding drum is fixedly arranged on the rotating shaft, so that when the rotating shaft rotates, the winding drum can rotate along with the rotating shaft simultaneously, and the waterproof conducting wire can be wound or wound out when the winding drum rotates, so that a user can control the winding drum to wind or wind the waterproof conducting wire by controlling the motor to rotate forwards or reversely, the waterproof conducting wire winding or winding-out device can automatically wind or pay off the waterproof conducting wire, and the working efficiency of the user is greatly improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a cross-sectional view of a first web of the present invention;
FIG. 3 is a cross-sectional view of the coupling device of the present invention;
FIG. 4 is a cross-sectional view of a second connecting plate of the present invention;
fig. 5 is a schematic structural view of a sleeve III and an elastic clip of the present invention.
In the figure: 1. a liquid level transmitter body; 2. a junction box; 3. a waterproof wire; 4. connecting the first electrode; 5. a first connecting plate; 6. connecting a second electrode; 7. a reel; 8. a rotating shaft; 9. a second connecting plate; 10. a motor case; 11. an electric motor; 12. a transmission belt; 13. a first sleeve; 14. a connecting rod; 15. a gasket; 16. a second sleeve; 17. a sleeve III; 18. an elastic clip; 19. a liquid level probe.
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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides the following technical solutions: the input type liquid level transmitter comprises a liquid level transmitter body 1 and a connecting plate I5, wherein the liquid level transmitter body 1 comprises a junction box 2, a waterproof wire 3 and a liquid level probe 19, a first mounting hole is formed in the connecting plate I5, one end of the junction box 2 is fixedly mounted on the inner side wall of the first mounting hole, a first connecting electrode 4 is arranged in the first mounting hole, the first connecting electrode 4 is fixedly mounted at one end of the junction box 2, a third mounting hole is formed in the bottom of the first connecting plate 5 and communicated with the first mounting hole, a second connecting electrode 6 is arranged in the third mounting hole, a first mounting groove is formed in the bottom of the first connecting electrode 4, one end of the second connecting electrode 6 penetrates into the first mounting groove, a winding drum 7 is arranged at the bottom of the first connecting plate 5, the waterproof wire 3 is wound on the winding drum 7, a second mounting hole is formed in the winding drum 7, a second through, the liquid level probe 19 is fixedly arranged at the other end of the waterproof wire 3, and a fixing hole is formed in the second connecting plate 9.
As can be seen from fig. 1 and 3, a fifth mounting groove is formed in the top of the first connecting plate 5, a connecting device is fixedly mounted on the inner side wall of the fifth mounting groove, the connecting device includes a first sleeve 13, a connecting rod 14, a sealing gasket 15, a second sleeve 16, a third sleeve 17 and an elastic clamping piece 18, one end of the connecting rod 14 is fixedly mounted on the inner side wall of the fifth mounting groove, a fourth through hole is formed in the bottom of the first sleeve 13, the first sleeve 13 is sleeved on the connecting rod 14 through the fourth through hole, the sealing gasket 15 is fixedly mounted on the other end of the connecting rod 14, a sixth mounting groove is formed in the bottom of the third sleeve 17, the third sleeve 17 is fixedly mounted on the top of the first sleeve 13 through the sixth mounting groove, a seventh mounting groove is formed in one end of the third sleeve 17, an internal thread is formed in the inner side wall of the second sleeve, the outer side wall of the second sleeve 16 is provided with anti-slip threads, so that a user can rotate the second sleeve 16 to release the extrusion of the second sleeve 16 on the elastic clamping piece 18, then the user can penetrate the connecting column used for installing the invention from the outside into the third sleeve 17, and then the user can rotate the second sleeve 16 again to enable the second sleeve 16 to move on the third sleeve 17 through the mutual matching of the internal thread and the external thread, so that the inner side wall of the second sleeve 16 extrudes the elastic clamping piece 18, and the elastic clamping piece 18 can fix the connecting column.
As can be seen from fig. 3 and 5, one end of the third sleeve is provided with a mounting groove seventh, one end of the elastic clamping piece 18 is fixedly mounted on the inner side wall of the mounting groove seventh, the inner side wall of the second sleeve 16 is provided with an internal thread, the outer side wall of the third sleeve 17 is provided with an external thread, the second sleeve 16 is sleeved on the third sleeve 17 through the mutual matching of the internal thread and the external thread, and a user can change the closing degree of the elastic clamping piece 18 by rotating the second sleeve 16, so that the connecting columns with different sizes can be connected, and the user can conveniently mount the invention.
As can be seen from fig. 1, 2 and 4, a winding drum 7 is arranged at the bottom of a first connecting plate 5, a waterproof wire 3 is wound on the winding drum 7, one end of the waterproof wire 3 passes through a second mounting hole and is fixedly mounted at the other end of a second connecting electrode 6, a second mounting groove is arranged at the bottom of the winding drum 7, a rotating shaft 8 is fixedly mounted on the inner side wall of the second mounting groove, one end of the rotating shaft 8 is rotatably mounted with a second connecting plate 9, a third mounting groove is arranged at the top of the second connecting plate 9, a motor box 10 is fixed on the inner side wall of the third mounting groove, a fourth mounting groove is arranged on the inner side wall of the motor box 10, a motor 11 is fixedly mounted on the inner side wall of the fourth mounting groove, a first through hole is arranged in the second connecting plate 9, a third through hole is arranged in a connecting area between the motor, one end cover of drive belt 12 is established on the output shaft of motor 11, the other end cover of drive belt 12 is established in the one end of axis of rotation 8, be provided with motor 11 on connecting plate two 9, motor 11 circular telegram is worked the back and can drive axis of rotation 8 through drive belt 12 and rotate, reel 7 is fixed mounting on axis of rotation 8, thereby when axis of rotation 8 rotates, reel 7 can follow axis of rotation 8 and rotate simultaneously, reel 7 can carry out the rolling or the rollout to waterproof wire 3 when rotating, thereby the user can be through the rolling or the rollout of waterproof wire 3 of control reel 7 of control motor 11 corotation or reversal, thereby can make the invention automatic receive line or unwrapping wire to waterproof wire 3, great improvement user's work efficiency.
The working principle of the invention is as follows: when a user uses the invention, the user can firstly check whether each part of the invention is perfect, one end of the sleeve III is provided with the mounting groove VII, one end of the elastic clamping piece 18 is fixedly arranged on the inner side wall of the mounting groove VII, the inner side wall of the sleeve II 16 is provided with the internal thread, the outer side wall of the sleeve III 17 is provided with the external thread, the sleeve II 16 is sleeved on the sleeve III 17 through the mutual matching of the internal thread and the external thread, the user can firstly rotate the sleeve II 16 to relieve the extrusion of the sleeve II 16 on the elastic clamping piece 18, then the user can lead the connecting column which is externally used for installing the invention to be penetrated in the sleeve III 17, and then the user can rotate the sleeve II 16 again to lead the sleeve II 16 to move on the sleeve III 17 through the mutual matching of the internal thread and the external thread, so that the inner side wall of the, therefore, the connecting column can be fixed by the elastic clamping piece 18, one end of the sleeve III is provided with a mounting groove III, one end of the elastic clamping piece 18 is fixedly arranged on the inner side wall of the mounting groove VII, the inner side wall of the sleeve II 16 is provided with an internal thread, the outer side wall of the sleeve III 17 is provided with an external thread, the sleeve II 16 is sleeved on the sleeve III 17 through the mutual matching of the internal thread and the external thread, and further, a user can change the closing degree of the elastic clamping piece 18 through rotating the sleeve II 16, so that the connecting column can be connected with connecting columns with different sizes, the user can conveniently install the connecting column, the bottom of the connecting plate I5 is provided with a winding drum 7, the waterproof conducting wire 3 is wound on the winding drum 7, one end of the waterproof conducting wire 3 is fixedly arranged on the other end of the connecting electrode II 6 through the mounting hole II, the bottom of, one end of the rotating shaft 8 is rotatably provided with a connecting plate II 9, the top of the connecting plate II 9 is provided with a mounting groove III, the inner side wall of the mounting groove III is fixed with a motor box 10, the inner side wall of the motor box 10 is provided with a mounting groove IV, the inner side wall of the mounting groove IV is fixedly provided with a motor 11, the connecting plate II 9 is internally provided with a through hole I, a connecting area of the motor box 10 and the connecting plate II 9 is internally provided with a through hole III, the through hole III is communicated with the through hole I, an output shaft of the motor 11 is arranged in the through hole I in a penetrating way, the through hole I is internally provided with a driving belt 12, one end of the driving belt 12 is sleeved on an output shaft of the motor 11, the other end of the driving belt 12 is sleeved on one end of the rotating shaft 8, the, the motor 11 can drive the rotating shaft 8 to rotate through the driving belt 12 after being electrified, and the winding drum 7 is fixedly installed on the rotating shaft 8, so that when the rotating shaft 8 rotates, the winding drum 7 can rotate along with the rotating shaft 8 at the same time, and the winding drum 7 can wind or roll out the waterproof conducting wire 3 when rotating, so that a user can control the winding drum 7 to wind or roll out the waterproof conducting wire 3 by controlling the motor 11 to rotate forwards or reversely, the waterproof conducting wire 3 can be automatically wound or unwound, and the working efficiency of the user is greatly improved.
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 modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (9)
1. Input formula level transmitter, including level transmitter body (1) and connecting plate (5), its characterized in that: the liquid level transmitter body (1) comprises a junction box (2), a waterproof wire (3) and a liquid level probe (19), a first mounting hole is formed in a first connecting plate (5), one end of the junction box (2) is fixedly mounted on the inner side wall of the first mounting hole, a first connecting electrode (4) is arranged in the first mounting hole, the first connecting electrode (4) is fixedly mounted at one end of the junction box (2), a third mounting hole is formed in the bottom of the first connecting plate (5), the third mounting hole is communicated with the first mounting hole, a second connecting electrode (6) is arranged in the third mounting hole, a first mounting groove is formed in the bottom of the first connecting electrode (4), one end of the second connecting electrode (6) is arranged in the first mounting groove in a penetrating mode, a winding drum (7) is arranged at the bottom of the first connecting plate (5), and the waterproof wire (3) is wound on the winding drum (7), be provided with mounting hole two on reel (7), the one end of waterproof wire (3) is passed two fixed mounting of mounting hole are in on the other end of connecting electrode two (6), the bottom of reel (7) is provided with mounting groove two, fixed mounting has axis of rotation (8) on the inside wall of mounting groove two, the one end of axis of rotation (8) is rotated and is installed connecting plate two (9), the top of connecting plate two (9) is provided with mounting groove three, be fixed with motor case (10) on the inside wall of mounting groove three, be provided with mounting groove four on the inside wall of motor case (10), fixed mounting has motor (11) on the inside wall of mounting groove four.
2. The drop-in level transmitter of claim 1, wherein: be provided with through-hole one in connecting plate two (9), motor case (10) with be provided with through-hole three in the joining region of connecting plate two (9), through-hole three with through-hole one intercommunication, the output shaft of motor (11) wears to establish in the through-hole one, be provided with drive belt (12) in the through-hole one, the pot head of drive belt (12) is established on the output shaft of motor (11), the other pot head of drive belt (12) is established the one end of axis of rotation (8).
3. The drop-in level transmitter of claim 1, wherein: a second through hole is formed in the second connecting plate (9), the other end of the waterproof wire (3) penetrates through the second through hole, and the liquid level probe (19) is fixedly installed at the other end of the waterproof wire (3).
4. The drop-in level transmitter of claim 1, wherein: the top of connecting plate (5) is provided with mounting groove five, fixed mounting has connecting device on the five inside walls of mounting groove, connecting device includes sleeve one (13), connecting rod (14), sealed pad (15), sleeve two (16), sleeve three (17) and elasticity clamping piece (18).
5. The drop-in level transmitter of claim 4, wherein: one end fixed mounting of connecting rod (14) is in on the inside wall of mounting groove five, the bottom of sleeve (13) is provided with through-hole four, sleeve (13) pass through the through-hole is established for four sets on connecting rod (14), sealed pad (15) fixed mounting be in on the other end of connecting rod (14).
6. The drop-in level transmitter of claim 4, wherein: the bottom of sleeve three (17) is provided with mounting groove six, sleeve three (17) pass through six fixed mounting in the top of sleeve one (13), the one end of sleeve three (17) is provided with mounting groove seven.
7. The drop-in level transmitter of claim 6, wherein: one end of the elastic clamping piece (18) is fixedly installed on the inner side wall of the mounting groove seven, inner threads are arranged on the inner side wall of the sleeve II (16), and outer threads are arranged on the outer side wall of the sleeve III (17).
8. The drop-in level transmitter of claim 7, wherein: the sleeve II (16) is sleeved on the sleeve III (17) through the mutual matching of the internal thread and the external thread.
9. The drop-in level transmitter of claim 4, wherein: the outer side wall of the second sleeve (16) is provided with anti-skid lines, and the second connecting plate (9) is provided with fixing holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010846070.4A CN112212938A (en) | 2020-08-21 | 2020-08-21 | Input type liquid level transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010846070.4A CN112212938A (en) | 2020-08-21 | 2020-08-21 | Input type liquid level transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112212938A true CN112212938A (en) | 2021-01-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010846070.4A Withdrawn CN112212938A (en) | 2020-08-21 | 2020-08-21 | Input type liquid level transmitter |
Country Status (1)
| Country | Link |
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| CN (1) | CN112212938A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114184812A (en) * | 2021-11-23 | 2022-03-15 | 国网福建省电力有限公司清流县供电公司 | Electric test wire arrangement tool |
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