CN114486059A - Be applied to pressure sensor's plug structure of preventing frostbite - Google Patents
Be applied to pressure sensor's plug structure of preventing frostbite Download PDFInfo
- Publication number
- CN114486059A CN114486059A CN202210137636.5A CN202210137636A CN114486059A CN 114486059 A CN114486059 A CN 114486059A CN 202210137636 A CN202210137636 A CN 202210137636A CN 114486059 A CN114486059 A CN 114486059A
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- wall
- plate
- fixedly connected
- heat
- pressure sensor
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- 208000001034 Frostbite Diseases 0.000 title claims description 4
- 238000001125 extrusion Methods 0.000 claims abstract description 16
- 238000001514 detection method Methods 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 47
- 238000002347 injection Methods 0.000 claims description 19
- 239000007924 injection Substances 0.000 claims description 19
- 230000005540 biological transmission Effects 0.000 claims description 18
- 230000002528 anti-freeze Effects 0.000 claims description 8
- 230000000712 assembly Effects 0.000 claims 1
- 238000000429 assembly Methods 0.000 claims 1
- 239000007788 liquid Substances 0.000 abstract description 42
- 238000007710 freezing Methods 0.000 abstract description 18
- 230000008014 freezing Effects 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 11
- 230000002265 prevention Effects 0.000 abstract 2
- 239000008213 purified water Substances 0.000 description 12
- 238000007789 sealing Methods 0.000 description 5
- 230000002035 prolonged effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 206010040007 Sense of oppression Diseases 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 108010053481 Antifreeze Proteins Proteins 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/06—Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
-
- 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
- G01L19/14—Housings
- G01L19/141—Monolithic housings, e.g. molded or one-piece housings
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention relates to the technical field of pressure sensor freezing prevention, in particular to a freezing prevention plug structure applied to a pressure sensor, which comprises a shell, wherein an annular rubber plug is arranged at the top of the arc-shaped inner wall of the shell, the arc-shaped inner wall of the annular rubber plug is fixedly connected with a connecting disc, the outer wall of the top of the connecting disc is provided with a connecting hole, the outer wall of the bottom of the connecting disc is fixedly connected with a connecting pipe close to the connecting hole, the arc-shaped inner wall of the connecting pipe is connected with an extrusion assembly in a sliding manner, and the outer wall of the bottom of the shell is provided with a detection assembly close to the extrusion assembly, continuous pressure on the piston plate is avoided during the freezing process of the liquid to be detected.
Description
Technical Field
The invention relates to the technical field of pressure sensor antifreezing, in particular to an antifreezing plug structure applied to a pressure sensor.
Background
The pressure sensor is a device or a device which can sense pressure signals and can convert the pressure signals into usable output electric signals according to a certain rule, the pressure sensor usually consists of a pressure sensitive element and a signal processing unit, the pressure sensor is the most common sensor in industrial practice, is widely applied to various industrial self-control environments and relates to various industries such as water conservancy and hydropower, railway traffic, intelligent buildings, production self-control, aerospace, war industry, petrifaction, oil wells, electric power, ships, machine tools, pipelines and the like, wherein in the industries such as water conservancy and hydropower and the like, the pressure sensor is usually adopted as a device for detecting water pressure, but in cold weather, the detected liquid in the detection shell of the pressure sensor is frozen, the volume of water after freezing is increased, the pressure sensor is stressed, and the pressure sensor is damaged, in order to avoid the damage of the pressure sensor in cold weather, an anti-freezing plug structure applied to the pressure sensor is needed to provide protection for the pressure sensor.
In the prior art, the following problems exist:
can not realize keeping pressure sensor's sealed in the testing process, pressure sensor often with be detected liquid direct contact, along with the increase of live time, can lead to pressure sensor inside intaking, corrode pressure sensor's electrical components, lead to pressure sensor life lower, in addition when cold weather, wait to detect liquid and freeze the back, can not effectively reduce the oppression that pressure sensor detected and received, can not initiatively provide the oppression buffering simultaneously, lead to being detected liquid and freeze the back, pressure sensor is impaired because by the extrusion, the pressure sensor that has leaded to existing prevents frostbite and fills up the practicality lower.
Disclosure of Invention
The present invention is directed to an anti-freeze plug structure for a pressure sensor, so as to solve the above problems.
The technical scheme of the invention is as follows: an anti-freezing plug structure applied to a pressure sensor comprises a shell, wherein an annular rubber plug is arranged at the top of an arc-shaped inner wall of the shell, the arc-shaped inner wall of the annular rubber plug is fixedly connected with a connecting disc, the outer wall of the top of the connecting disc is provided with a connecting hole, the outer wall of the bottom of the connecting disc is fixedly connected with a connecting pipe close to the connecting hole, the arc-shaped inner wall of the connecting pipe is slidably connected with an extrusion assembly, the outer wall of the bottom of the shell is provided with a detection assembly close to the extrusion assembly, the outer wall of the bottom of the connecting disc is fixedly connected with an annular plate, the outer wall of the top of the annular plate is fixedly connected with a counterweight seat, the counterweight seat and the connecting pipe form a fixed connection, the arc-shaped inner wall of the annular plate is slidably connected with a pneumatic assembly driving the extrusion assembly to move, the outer wall of the top of the connecting disc is provided with a fixed groove, the inner wall of the bottom of the fixed groove is fixedly connected with heat-conducting fins distributed at equal intervals, the connecting plate bottom outer wall fixedly connected with spiral heat-conducting plate, and spiral heat-conducting plate and heat-conducting seat constitute fixed connection, connecting pipe arc inner wall is close to extrusion subassembly department and has seted up the ring channel, ring channel arc inner wall fixedly connected with heat-conducting component.
Preferably, the pitch of the spiral heat-conducting plate increases progressively along the height direction thereof.
Preferably, the annular plate arc outer wall is close to spiral heat-conducting plate department and has seted up the water injection hole, water injection hole arc inner wall fixedly connected with water injection pipe, water injection pipe arc outer wall has sealed lid through threaded connection.
Preferably, the extrusion subassembly includes the piston board of sliding connection at connecting pipe arc inner wall, piston board bottom outer wall fixedly connected with spring, connecting pipe arc inner wall is in piston board below department sliding connection and has the connecting plate, and spring and connecting plate constitute fixed connection.
Preferably, the detection assembly comprises a circular groove formed in the outer wall of the bottom of the shell, two fixing blocks and two fixing blocks are fixedly connected to the inner wall of the top of the circular groove, fixing plates are fixedly connected to the outer wall of the opposite side of the fixing blocks, a pressure sensor body is fixedly connected to the outer wall of the top of the fixing plates, a through hole is formed in the inner wall of the top of the circular groove, the pressure sensor body penetrates through the through hole, and the through hole is communicated with a connecting pipe.
Preferably, the pneumatic assembly comprises an annular piston which is connected to the arc-shaped inner wall of the annular plate in a sliding mode, the annular piston and the arc-shaped outer wall of the connecting pipe form a sliding connection mode, first air transmission holes which are distributed equidistantly are formed in the outer wall of the top of the counterweight seat, second air transmission holes which are distributed equidistantly are formed in the position, between the connecting plate and the piston plate, of the arc-shaped inner wall of the connecting pipe, and the first air transmission holes are communicated with the second air transmission holes nearby respectively.
Preferably, the heat-conducting component includes the second heat-conducting plate of fixed connection at ring channel arc inner wall, the heat exchange component that second heat-conducting plate arc inner wall fixedly connected with distributes about two, the spread groove that the equidistance distributes is seted up to connection pad top outer wall, the first heat-conducting plate of the equal fixedly connected with of connection tank bottom inner wall, and first heat-conducting plate and heat-conducting seat constitution fixed connection, first heat-conducting plate is L type structure, the fixed orifices has all been seted up to connection tank bottom inner wall and has been supplied first heat-conducting plate to pass, first heat-conducting plate and second heat-conducting plate constitute fixed connection.
Preferably, the heat exchange assembly comprises heat exchange plates fixedly connected to the arc-shaped inner wall of the second heat conduction plate and distributed at equal intervals, and a fixed plate is fixedly connected to the outer wall of one side of each heat exchange plate.
The invention provides an anti-freezing plug structure applied to a pressure sensor by improvement, and compared with the prior art, the anti-freezing plug structure has the following improvements and advantages:
one is as follows: according to the invention, by the arrangement of the fixing plate, the shell, the fixing block, the connecting pipe, the connecting disk and the annular rubber plug, when the device is used, the connecting disk, the connecting pipe and the like are fixed inside the shell through the annular rubber plug, at the moment, a gap between the connecting disk and the shell is sealed through the annular rubber plug, a liquid to be detected above the piston plate is prevented from entering the connecting pipe and being positioned in a space below the piston plate through the piston plate, and the shell is sealed through the fixing plate and the fixing block, so that the situation that the detected liquid directly contacts with the pressure sensor body is avoided to a great extent in the use process, the situation that the pressure sensor body is filled with water along with the increase of the use time is avoided, and the service life of the pressure sensor body is further prolonged;
the second step is as follows: the invention can inject purified water into the space formed by the annular plate, the connecting plate and the connecting pipe through the water injection pipe before the device is used, and then the water injection pipe is sealed through the sealing cover, the device ensures that the heat-conducting fin is always positioned above the device in the process of descending in the liquid to be detected through the action of the counterweight seat, when the temperature is low and the liquid to be detected is frozen, the temperature of the part of the liquid to be detected which is directly contacted with air is lower under the evaporation action of water, so that the temperature of the liquid above the liquid to be detected is lower in the liquid to be detected, the heat-conducting seat has lower temperature through the action of the heat-conducting fin, the spiral heat-conducting plate is in a lower temperature state through the conduction of the heat-conducting seat, and the screw pitch of the spiral heat-conducting plate is gradually increased from top to bottom, therefore, the temperature above the purified water is lower, because the freezing point of the purified water is lower than that of the liquid to be detected, the purified water starts to freeze from the upper right to the lower right, after the purified water freezes, the volume is increased, the moving part distance of the annular piston is pushed, in the moving process of the annular piston, gas in a space formed by the annular plate, the annular piston and the connecting pipe is input between the connecting plate and the piston plate through the first gas transmission hole and the second gas transmission hole, the piston plate is far away from the connecting plate, the buffer distance between the piston plate and the connecting plate is increased, meanwhile, the heat conducting seat takes away heat on the heat exchange plates through the first heat conducting plate and the second heat conducting plate, the temperature of the liquid to be detected in the connecting pipe, which is close to the second heat conducting plate, is lower, when freezing occurs, the liquid to be detected between the two heat exchange plates freezes in one step, and the ice cake between the heat exchange plates prevents the liquid to be detected from continuously extruding the piston plate, the pressure sensor has the advantages that the phenomenon that the piston plate is continuously pressurized in the process of detecting the liquid to be frozen is avoided, the pressure sensor body is prevented from being in a compression state for a long time, and the service life of the pressure sensor body is further prolonged.
Drawings
The invention is further explained below with reference to the figures and examples:
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a bottom perspective view of the present invention;
FIG. 3 is a schematic view showing an exploded structure of the heat-conducting fin, the heat-conducting base and the connecting plate according to the present invention;
FIG. 4 is a schematic illustration of an explosive structure of the detection assembly of the present invention;
FIG. 5 is a schematic structural view of the connecting disc, the annular rubber plug, the annular plate and the weight seat of the invention;
FIG. 6 is a cross-sectional view of the interface disc, annular plate and weight seat of the present invention;
FIG. 7 is an enlarged partial view of FIG. 6 at A in accordance with the present invention;
figure 8 is a schematic view of a cross-section of a connecting tube and an exploded configuration of an extrusion assembly of the present invention.
Description of reference numerals:
1. a housing; 2. a heat conductive sheet; 3. a fixing plate; 301. a fixed block; 4. a heat conducting base; 5. a first heat-conducting plate; 6. a connecting disc; 601. connecting holes; 7. fixing grooves; 8. an annular rubber plug; 9. a pressure sensor body; 10. a circular groove; 1001. a through hole; 11. an annular plate; 12. a sealing cover; 13. a counterweight seat; 14. a first gas transmission hole; 15. a second gas transmission hole; 16. an annular piston; 17. a spiral heat conducting plate; 18. a connecting pipe; 19. a water injection pipe; 20. fixing the disc; 21. a fixing hole; 22. connecting grooves; 23. a second heat-conducting plate; 24. a connecting plate; 25. a spring; 26. a piston plate; 27. a heat exchange plate.
Detailed Description
The present invention is described in detail below, and technical solutions in the embodiments of the present invention are clearly and completely described, 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.
The invention provides an anti-freezing plug structure applied to a pressure sensor through improvement, and the technical scheme of the invention is as follows:
as shown in FIGS. 1 to 8, an anti-freezing plug structure applied to a pressure sensor comprises a housing 1, wherein an annular rubber plug 8 is arranged on the top of an arc-shaped inner wall of the housing 1, a connecting disc 6 is fixedly connected to the arc-shaped inner wall of the annular rubber plug 8, a connecting hole 601 is formed in the outer wall of the top of the connecting disc 6, a connecting pipe 18 is fixedly connected to the outer wall of the bottom of the connecting disc 6, a squeezing component is slidably connected to the arc-shaped inner wall of the connecting pipe 18, a detection component is arranged on the outer wall of the bottom of the housing 1, a ring plate 11 is fixedly connected to the outer wall of the bottom of the connecting disc 6, a counterweight seat 13 is fixedly connected to the outer wall of the top of the ring plate 11, the counterweight seat 13 and the connecting pipe 18 form a fixed connection, a pneumatic component for driving the squeezing component to move is slidably connected to the arc-shaped inner wall of the ring plate 11, a fixing groove 7 is formed in the outer wall of the top of the connecting disc 6, and a heat-conducting seat 4 is fixedly connected to the inner wall of the bottom of the fixing groove 7, the outer wall of the top of the heat conducting seat 4 is fixedly connected with heat conducting fins 2 distributed equidistantly, the outer wall of the bottom of the connecting disc 6 is fixedly connected with a spiral heat conducting plate 17, the spiral heat conducting plate 17 and the heat conducting seat 4 are fixedly connected, an annular groove is formed in the arc-shaped inner wall of the connecting pipe 18 close to the extrusion assembly, and a heat conducting assembly is fixedly connected to the arc-shaped inner wall of the annular groove; borrow by above-mentioned structure, can make heat conduction seat 4 possess lower temperature through the effect of conducting strip 2, through the conduction of heat conduction seat 4, make spiral heat-conducting plate 17 be in the lower state of temperature, because the freezing point of pure water is lower than the freezing point of waiting to detect liquid, make the pure water upper right to the lower start freezing, after the pure water freezes, the volume increases, promotes annular piston 16 and removes some distances.
Further, the pitch of the spiral heat-conducting plate 17 is increased progressively along the height direction thereof; by means of the structure, the screw pitch which is gradually increased from top to bottom can be achieved through the spiral heat conduction plate 17, so that the temperature above the purified water is lower, and the annular piston 16 can be pushed to move through the icing process of the purified water.
Further, a water injection hole is formed in the arc-shaped outer wall of the annular plate 11, which is close to the spiral heat conducting plate 17, a water injection pipe 19 is fixedly connected to the arc-shaped inner wall of the water injection hole, and a sealing cover 12 is connected to the arc-shaped outer wall of the water injection pipe 19 through threads; by the above structure, pure water can be injected into the space formed by the annular plate 11, the connecting plate 6 and the connecting pipe 18 through the water injection pipe 19, and then the water injection pipe 19 is sealed by the sealing cover 12, so that the spiral heat conducting plate 17 is immersed in the pure water.
Further, the extrusion assembly comprises a piston plate 26 connected to the arc-shaped inner wall of the connecting pipe 18 in a sliding manner, a spring 25 is fixedly connected to the outer wall of the bottom of the piston plate 26, a connecting plate 24 is connected to the arc-shaped inner wall of the connecting pipe 18 below the piston plate 26 in a sliding manner, and the spring 25 and the connecting plate 24 are fixedly connected; borrow by above-mentioned structure, can detect liquid back at this device entering, liquid passes through the connecting pipe 18 and gets into, extrudees piston plate 26 under the effect of pressure, promotes piston plate 26 and removes along connecting pipe 18, extrudees connecting plate 24 through the effect of spring 25, and then makes pressure sensor body 9 produce the signal, realizes that liquid pressure detects.
Further, the detection assembly comprises a circular groove 10 formed in the outer wall of the bottom of the shell 1, the inner wall of the top of the circular groove 10 is fixedly connected with two fixing blocks 301, the outer wall of the opposite side of the two fixing blocks 301 is fixedly connected with a fixing plate 3, the outer wall of the top of the fixing plate 3 is fixedly connected with a pressure sensor body 9, the inner wall of the top of the circular groove 10 is provided with a through hole 1001 for the pressure sensor body 9 to pass through, and the through hole 1001 is communicated with a connecting pipe 18; borrow by above-mentioned structure, can realize the sealed of casing 1 through fixed plate 3 and fixed block 301, realize in the use, the very big degree has been avoided detecting liquid direct contact pressure sensor body 9, has avoided leading to the condition that pressure sensor body 9 intakes along with the increase of live time, and then has improved the life of pressure sensor body 9.
Further, the pneumatic assembly comprises an annular piston 16 connected to the arc-shaped inner wall of the annular plate 11 in a sliding mode, the annular piston 16 is connected with the arc-shaped outer wall of the connecting pipe 18 in a sliding mode, first air transmission holes 14 distributed at equal intervals are formed in the outer wall of the top of the counterweight seat 13, second air transmission holes 15 distributed at equal intervals are formed in the position, located between the connecting plate 24 and the piston plate 26, of the arc-shaped inner wall of the connecting pipe 18, and the first air transmission holes 14 are communicated with the second air transmission holes 15 nearby respectively; with the above structure, the gas in the space formed by the annular plate 11, the annular piston 16 and the connecting pipe 18 can be introduced between the connecting plate 24 and the piston plate 26 through the first and second gas delivery holes 14 and 15 during the movement of the annular piston 16, so that the piston plate 26 is away from the connecting plate 24, and the buffer distance between the piston plate 26 and the connecting plate 24 is increased.
Further, the heat conducting component comprises a second heat conducting plate 23 fixedly connected to the arc-shaped inner wall of the annular groove, the arc-shaped inner wall of the second heat conducting plate 23 is fixedly connected with two heat exchange components distributed up and down, the outer wall of the top of the connecting plate 6 is provided with connecting grooves 22 distributed equidistantly, the inner walls of the bottoms of the connecting grooves 22 are fixedly connected with a first heat conducting plate 5, the first heat conducting plate 5 and the heat conducting seat 4 form a fixed connection, the first heat conducting plate 5 is of an L-shaped structure, the inner walls of the bottoms of the connecting grooves 22 are provided with fixing holes 21 for the first heat conducting plate 5 to pass through, and the first heat conducting plate 5 and the second heat conducting plate 23 form a fixed connection; by means of the structure, the heat conducting seat 4 can take away heat on the heat exchange plates 27 through the first heat conducting plate 5 and the second heat conducting plate 23, so that the temperature of the liquid to be detected in the connecting pipe 18, which is close to the second heat conducting plate 23, is lower, when freezing occurs, the liquid to be detected between the two heat exchange plates 27 freezes at first, and the ice blocks between the heat exchange plates 27 prevent the liquid to be detected from continuously extruding the piston plate 26.
Further, the heat exchange assembly comprises heat exchange plates 27 fixedly connected to the arc-shaped inner wall of the second heat conduction plate 23 and distributed at equal intervals, and a fixed disc 20 is fixedly connected to the outer wall of one side of each heat exchange plate 27; with the above-described structure, the degree of stability between the plurality of heat exchange plates 27 can be ensured by fixing the tray 20.
The working principle is as follows: when in use, purified water is injected into a space formed by the annular plate 11, the connecting disc 6 and the connecting pipe 18 through the water injection pipe 19, then the water injection pipe 19 is sealed through the sealing cover 12, the connecting disc 6, the connecting pipe 18 and the like are fixed inside the shell 1 through the annular rubber plug 8, at the moment, a gap between the connecting disc 6 and the shell 1 is sealed through the annular rubber plug 8, liquid to be detected above the piston plate 26 is prevented from entering the connecting pipe 18 through the piston plate 26 and being positioned in the space below the piston plate 26, the shell 1 is sealed through the fixing plate 3 and the fixing block 301, the direct contact of the detected liquid with the pressure sensor body 9 is avoided to a great extent in the use process, the condition that the pressure sensor body 9 enters water along with the increase of the service time is avoided, the service life of the pressure sensor body 9 is further prolonged, and after the assembly of all the components is completed, the device is put into liquid to be detected, in the process of descending in the liquid to be detected, the heat conducting fin 2 is always positioned above under the action of the counterweight seat 13, after the device enters the liquid to be detected, the liquid enters through the connecting pipe 18, the piston plate 26 is extruded under the action of pressure, the piston plate 26 is pushed to move along the connecting pipe 18, the connecting plate 24 is extruded under the action of the spring 25, the pressure sensor body 9 is enabled to generate signals, liquid pressure detection is realized, when the temperature is low and the liquid to be detected is frozen, the part of the liquid to be detected, which is directly contacted with air, is lower in temperature under the evaporation action of water, therefore, in the liquid to be detected, the temperature of the liquid above is lower, the heat conducting seat 4 is enabled to have lower temperature under the action of the heat conducting fin 2, and the spiral heat conducting plate 17 is enabled to be in a lower temperature state through the conduction of the heat conducting seat 4, because the screw pitch of the spiral heat conducting plate 17 is gradually increased from top to bottom, the temperature above the purified water is lower, the purified water starts to freeze from top to bottom because the freezing point of the purified water is lower than that of the liquid to be detected, after the purified water is frozen, the volume is increased, the annular piston 16 is pushed to move for a part of distance, the gas in the space formed by the annular plate 11, the annular piston 16 and the connecting pipe 18 is input between the connecting plate 24 and the piston plate 26 through the first gas transmission hole 14 and the second gas transmission hole 15 in the moving process of the annular piston 16, so that the piston plate 26 is far away from the connecting plate 24, the buffer distance between the piston plate 26 and the connecting plate 24 is increased, meanwhile, the heat conducting seat 4 takes away the heat on the heat exchanging plates 27 through the first heat conducting plate 5 and the second heat conducting plate 23, the temperature of the liquid to be detected in the connecting pipe 18 close to the second heat conducting plate 23 is lower, and when the liquid to be detected between the two heat exchanging plates 27 is frozen in a step, the ice blocks between the heat exchange plates 27 prevent the liquid to be detected from continuously extruding the piston plate 26, so that the phenomenon that the liquid to be detected continuously generates pressure on the piston plate 26 in the freezing process is avoided, the pressure sensor body 9 is prevented from being in a compression state for a long time by being matched with the buffering of the spring 25, and the service life of the pressure sensor body 9 is further prolonged.
Claims (8)
1. The utility model provides a be applied to pressure sensor's plug structure that prevents frostbite which characterized in that: comprises a shell (1), the top of the arc inner wall of the shell (1) is provided with an annular rubber plug (8), the arc inner wall of the annular rubber plug (8) is fixedly connected with a connecting disc (6), the top outer wall of the connecting disc (6) is provided with a connecting hole (601), the bottom outer wall of the connecting disc (6) is fixedly connected with a connecting pipe (18) close to the connecting hole (601), the arc inner wall of the connecting pipe (18) is slidably connected with an extrusion component, the bottom outer wall of the shell (1) is provided with a detection component close to the extrusion component, the bottom outer wall of the connecting disc (6) is fixedly connected with an annular plate (11), the top outer wall of the annular plate (11) is fixedly connected with a counterweight seat (13), the counterweight seat (13) and the connecting pipe (18) form a fixed connection, the arc inner wall of the annular plate (11) is slidably connected with a pneumatic component for driving the extrusion component to move, fixed slot (7) have been seted up to connection pad (6) top outer wall, fixed slot (7) bottom inner wall fixedly connected with heat-conducting seat (4), heat-conducting fin (2) that heat-conducting seat (4) top outer wall fixedly connected with equidistance distributes, connection pad (6) bottom outer wall fixedly connected with spiral heat-conducting plate (17), and spiral heat-conducting plate (17) and heat-conducting seat (4) constitute fixed connection, connecting pipe (18) arc inner wall is close to extrusion subassembly department and has seted up the ring channel, ring channel arc inner wall fixedly connected with heat-conducting component.
2. The antifreeze plug structure applied to the pressure sensor as set forth in claim 1, wherein: the thread pitch of the spiral heat conducting plate (17) increases progressively along the height direction thereof.
3. The antifreeze plug structure applied to the pressure sensor as set forth in claim 1, wherein: annular plate (11) arc outer wall is close to spiral heat-conducting plate (17) department and has seted up the water injection hole, water injection hole arc inner wall fixedly connected with water injection pipe (19), water injection pipe (19) arc outer wall has sealed lid (12) through threaded connection.
4. The antifreeze plug structure applied to the pressure sensor as set forth in claim 1, wherein: the extrusion subassembly includes piston plate (26) of sliding connection at connecting pipe (18) arc inner wall, piston plate (26) bottom outer wall fixedly connected with spring (25), connecting pipe (18) arc inner wall is in piston plate (26) below sliding connection and has connecting plate (24), and spring (25) and connecting plate (24) constitute fixed connection.
5. The antifreeze plug structure applied to the pressure sensor as set forth in claim 1, wherein: the detection assembly comprises a circular groove (10) formed in the outer wall of the bottom of the shell (1), two fixing blocks (301) and two fixing blocks (301) are fixedly connected to the inner wall of the top of the circular groove (10), the fixing blocks (301) are fixedly connected to the outer wall of the opposite side, a pressure sensor body (9) is fixedly connected to the outer wall of the top of the fixing plates (3), a through hole (1001) is formed in the inner wall of the top of the circular groove (10), the pressure sensor body (9) penetrates through the through hole (1001), and the through hole (1001) is communicated with a connecting pipe (18).
6. The antifreeze plug structure applied to the pressure sensor as set forth in claim 4, wherein: pneumatic assembly includes annular piston (16) of sliding connection at annular plate (11) arc inner wall, and annular piston (16) and connecting pipe (18) arc outer wall constitute sliding connection, first gas transmission hole (14) that the equidistance distributes are seted up to counter weight seat (13) top outer wall, connecting pipe (18) arc inner wall is in and locates to set up second gas transmission hole (15) that the equidistance distributes between connecting plate (24) and piston plate (26), and first gas transmission hole (14) are linked together with second gas transmission hole (15) nearby respectively.
7. The antifreeze plug structure applied to the pressure sensor as set forth in claim 1, wherein: the heat conduction assembly comprises a second heat conduction plate (23) fixedly connected to the arc-shaped inner wall of the annular groove, the heat exchange assemblies are fixedly connected to the arc-shaped inner wall of the second heat conduction plate (23) and distributed up and down, connecting grooves (22) distributed equidistantly are formed in the outer wall of the top of the connecting plate (6), first heat conduction plates (5) are fixedly connected to the inner wall of the bottoms of the connecting grooves (22), the first heat conduction plates (5) and the heat conduction seats (4) form a fixed connection, the first heat conduction plates (5) are of an L-shaped structure, fixing holes (21) are formed in the inner wall of the bottom of the connecting grooves (22) and used for the first heat conduction plates (5) to pass through, and the first heat conduction plates (5) and the second heat conduction plates (23) form a fixed connection.
8. The antifreeze plug structure applied to the pressure sensor as set forth in claim 7, wherein: the heat exchange component comprises heat exchange plates (27) fixedly connected to the arc-shaped inner wall of the second heat conduction plate (23) in an equidistant distribution mode, and a fixed plate (20) is fixedly connected to the outer wall of one side of each heat exchange plate (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210137636.5A CN114486059A (en) | 2022-02-15 | 2022-02-15 | Be applied to pressure sensor's plug structure of preventing frostbite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210137636.5A CN114486059A (en) | 2022-02-15 | 2022-02-15 | Be applied to pressure sensor's plug structure of preventing frostbite |
Publications (1)
| Publication Number | Publication Date |
|---|---|
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| KR20040073911A (en) * | 2003-02-12 | 2004-08-21 | 서영철 | Method for manufacturing and forming water pipe freeze protection machine |
| CN206299501U (en) * | 2016-08-20 | 2017-07-04 | 立邦（福建）滤清器制造有限公司 | A kind of antifreeze pass blocking type knot diesel fuel filter |
| CN207019834U (en) * | 2017-07-10 | 2018-02-16 | 王泽强 | Antifreezing joint for pressure gauge and its antifreeze detection means of fluid pressure |
| CN207050912U (en) * | 2017-07-21 | 2018-02-27 | 建湖县博伟机械有限公司 | A kind of anti-freeze pressure meter joint |
| CN108362433A (en) * | 2018-04-15 | 2018-08-03 | 无锡盛赛传感科技有限公司 | A kind of encapsulating structure of anti-freeze type ceramic pressure sensor |
| CN211121701U (en) * | 2019-11-12 | 2020-07-28 | 深圳安培龙科技股份有限公司 | Packaging structure of ceramic pressure sensor |
| CN211927138U (en) * | 2020-04-11 | 2020-11-13 | 酒泉富民裕国农业技术推广服务专业合作社 | Low-temperature protection device for pressure gauge |
| CN213068047U (en) * | 2020-10-20 | 2021-04-27 | 黎双丽 | Anti-freezing pressure gauge |
| CN213452156U (en) * | 2020-08-21 | 2021-06-15 | 宁波方太厨具有限公司 | Anti-freezing pipeline |
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2022
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4848389A (en) * | 1988-05-16 | 1989-07-18 | Pirkle Fred L | Freeze protection device |
| KR20040073911A (en) * | 2003-02-12 | 2004-08-21 | 서영철 | Method for manufacturing and forming water pipe freeze protection machine |
| CN206299501U (en) * | 2016-08-20 | 2017-07-04 | 立邦（福建）滤清器制造有限公司 | A kind of antifreeze pass blocking type knot diesel fuel filter |
| CN207019834U (en) * | 2017-07-10 | 2018-02-16 | 王泽强 | Antifreezing joint for pressure gauge and its antifreeze detection means of fluid pressure |
| CN207050912U (en) * | 2017-07-21 | 2018-02-27 | 建湖县博伟机械有限公司 | A kind of anti-freeze pressure meter joint |
| CN108362433A (en) * | 2018-04-15 | 2018-08-03 | 无锡盛赛传感科技有限公司 | A kind of encapsulating structure of anti-freeze type ceramic pressure sensor |
| CN211121701U (en) * | 2019-11-12 | 2020-07-28 | 深圳安培龙科技股份有限公司 | Packaging structure of ceramic pressure sensor |
| CN211927138U (en) * | 2020-04-11 | 2020-11-13 | 酒泉富民裕国农业技术推广服务专业合作社 | Low-temperature protection device for pressure gauge |
| CN213452156U (en) * | 2020-08-21 | 2021-06-15 | 宁波方太厨具有限公司 | Anti-freezing pipeline |
| CN213068047U (en) * | 2020-10-20 | 2021-04-27 | 黎双丽 | Anti-freezing pressure gauge |
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