CN116642620B - Pressure gauge sealing structure - Google Patents
Pressure gauge sealing structure Download PDFInfo
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- CN116642620B CN116642620B CN202310911454.3A CN202310911454A CN116642620B CN 116642620 B CN116642620 B CN 116642620B CN 202310911454 A CN202310911454 A CN 202310911454A CN 116642620 B CN116642620 B CN 116642620B
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- sealing
- assembly
- watchcase
- tube
- fluid
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- 238000007789 sealing Methods 0.000 title claims abstract description 102
- 239000012530 fluid Substances 0.000 claims abstract description 51
- 230000005540 biological transmission Effects 0.000 claims abstract description 20
- 230000008878 coupling Effects 0.000 claims abstract description 16
- 238000010168 coupling process Methods 0.000 claims abstract description 16
- 238000005859 coupling reaction Methods 0.000 claims abstract description 16
- 230000007246 mechanism Effects 0.000 claims abstract description 9
- 238000012544 monitoring process Methods 0.000 claims abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 11
- 230000009471 action Effects 0.000 description 8
- 239000011521 glass Substances 0.000 description 7
- 230000003139 buffering effect Effects 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 230000035485 pulse pressure Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L7/00—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements
- G01L7/02—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges
- G01L7/022—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges constructional details, e.g. mounting of elastically-deformable gauges
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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
- 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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L7/00—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements
- G01L7/02—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges
- G01L7/04—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges in the form of flexible, deformable tubes, e.g. Bourdon gauges
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention relates to the technical field of pressure gauges, in particular to a pressure gauge sealing structure, which comprises a watchcase, wherein the bottom of the watchcase is provided with a sealing component, one side of the watchcase is provided with a leakage buffer component, a meter component is arranged in an inner cavity of the watchcase, the meter component comprises a Bowden tube communicated with an inner channel of the sealing component, a fluid to be measured enters the Bowden tube from the sealing component to perform pressure monitoring, when the Bowden tube breaks, the leaked fluid is buffered in the leakage buffer component from the watchcase, and more fluid flowing into the Bowden tube through the sealing component triggers a sealing mechanism in the sealing component to realize the purpose of sealing the inner channel of the Bowden tube. The invention has the advantages that the space is used for changing time, the flow is used for energy conversion, the double sealing mechanism of the magnetic coupling transmission is combined with the other sealing mechanism, the phenomenon that fluid rushes out of the watchcase due to the break of the Bowden tube is avoided, and the dangerous condition of large leakage is formed.
Description
Technical Field
The invention relates to the technical field of pressure gauges, in particular to a pressure gauge sealing structure.
Background
The mechanical pressure gauge is an instrument which takes an elastic element as a sensitive element and measures and indicates pressure higher than the environment, is very popular in the fields of heating power pipe networks, oil and gas transmission, water and gas supply systems and the like, and is more and more widely applied due to the characteristics of high mechanical strength, convenient production and the like of the elastic sensitive element of the mechanical pressure gauge.
The existing Bowden tube type or called spring tube type mechanical pressure gauge is characterized in that a reading disc with scales and a gear set connected with the Bowden tube are arranged in a meter shell, a transmission shaft of a driven gear penetrates through a central round hole of the reading disc and is provided with a reading pointer, meanwhile, in order to seal the interior of the meter shell, rust of the internal gear set is avoided, a transparent wafer such as a glass sheet is also embedded in the outer side of the meter shell, so that reading is facilitated, when the Bowden tube is used, the tube wall is thinner, and the measured fluid is subjected to overlarge pressure, pressure pulse and other reasons, so that the Bowden tube is broken, and then the leaked high-pressure fluid also breaks the reading disc and the glass sheet easily, so that the dangerous situation of massive leakage to the outside of the meter shell is caused.
Disclosure of Invention
In order to solve the problem that when the existing partial pressure gauge is broken, the leaked high-pressure fluid can easily break through the reading disc and the glass sheet, so that a large amount of leakage is caused outside the meter shell.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the utility model provides a manometer seal structure, includes the watchcase, the bottom of watchcase is provided with seal assembly, one side of watchcase is provided with and leaks the buffering subassembly, be provided with the table subassembly in the inner chamber of watchcase, the table subassembly includes the bourdon tube that communicates with seal assembly internal passage, and the measured fluid gets into from seal assembly and carries out pressure monitoring in the bourdon tube, when the bourdon tube breaks, the fluid that leaks will gush into from the watchcase and reveal buffering in the buffering subassembly, and more simultaneously will trigger the inside sealing mechanism of seal assembly through seal assembly fluid that gushes into the bourdon tube, realizes the purpose of sealed its internal passage;
the sealing component comprises a main pipe arranged at the bottom of the watchcase, a connector is arranged at the top end opening of the main pipe, the side face of the connector is connected with one end of a Bowden tube, the center of the connector is rotationally connected with a main shaft, a plurality of drift blades are uniformly arranged on the periphery of the middle part of the main shaft, a threaded column is arranged at the bottom end of the main shaft, external threads of the threaded column are connected to the lower side of a sealing plug central column cavity, the upper side of the sealing plug central column cavity is matched with the outside of the main shaft, guide rods are slidably connected to the two sides of the interior of the sealing plug, an expansion tube is arranged at the bottom end opening of the main pipe, and the upper end and the lower end of the guide rods are correspondingly arranged at the inner wall of the upper side and the lower side of the expansion tube respectively.
As a preferred embodiment of the present invention, the diameter of the main shaft is smaller than the diameter of the threaded post.
As a preferred aspect of the present invention, the sealing assembly further comprises a branch pipe installed at a side of the main pipe, the height of the branch pipe is aligned with the height of the drift vane, and a first sealing cover is installed at one end of the branch pipe.
As a preferred scheme of the invention, the leakage buffer assembly comprises a folding corrugated pipe arranged on one side of the watchcase, and a second sealing cover is arranged at one end of the folding corrugated pipe.
As a preferred scheme of the invention, the watch assembly comprises a transparent reading cover, the transparent reading cover is arranged on the other side of the watch case, scales are arranged on the other side of the watch case, and a pointer is rotatably connected to the central inner wall of the transparent reading cover.
As a preferable scheme of the invention, a first magnetic coupling transmission structure is arranged at one end of the rotating shaft of the pointer, which is close to the watchcase.
As a preferable scheme of the invention, the watch assembly further comprises an assembling bracket arranged at the top end of the connector, wherein the top of the assembling bracket is positioned at the center of the watch case and is rotationally connected with a shaft lever, and one end of the shaft lever is provided with a second magnetic coupling transmission structure matched with the first magnetic coupling transmission structure.
As a preferable scheme of the invention, the other end of the shaft lever is provided with a circular gear, one side of the circular gear is connected with a special-shaped gear in a meshed manner, the axle center of the special-shaped gear is rotationally connected to one side of the top of the assembly bracket, and one end of the special-shaped gear is connected to the other end of the Bowden tube through a connecting rod.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, when the flow speed and flow rate of fluid in the sealing assembly are suddenly increased, the fluid drives the bias flow blade to rotate rapidly, so that the threaded column at the bottom end is driven to rotate, the sealing plug moves upwards along the threaded column under the action of threaded connection, and when the sealing plug is completely separated from the threaded column, the sealing plug is pushed to completely seal the top port of the inner cavity of the dilatation tube under the continuous impact of the fluid, so that the self-sealing purpose of the pressure gauge during leakage is realized, and the dangerous condition of continuous leakage is avoided.
2. In the invention, when the Bowden tube is broken, the leaked fluid firstly flows into the inner cavity of the watchcase, and then when the fluid continuously flows into the watchcase through the sealing assembly, the leaked fluid is flushed to the leakage buffer assembly and the folding corrugated tube is opened under the internal huge pressure, and the leaked fluid is sealed in the folding corrugated tube under the plugging action of the second sealing cover, so that the leakage to the outside is avoided.
3. According to the invention, by adopting a double sealing mechanism of space time and flow energy conversion and adopting magnetic coupling transmission in combination with the sealing mechanism, the transparent reading cover is not communicated with the inner cavity of the watchcase, and under the triple sealing effect, the situation that fluid caused by the break of the Bowden tube breaks through the conventional transparent reading cover to form large leakage is avoided.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is another schematic view of the structure of FIG. 1;
FIG. 3 is an exploded view of the structure of the present invention;
FIG. 4 is a schematic view of the internal structure of the seal assembly of the present invention;
FIG. 5 is a schematic view showing the expansion state of the folded bellows of the present invention;
FIG. 6 is a schematic view of the internal structure of the transparent reading cover of the present invention;
FIG. 7 is a schematic view of a partial watch assembly of the present invention;
fig. 8 is another schematic view of the structure of fig. 7.
Wherein, 1, watchcase; 2. a seal assembly; 201. a main pipe; 202. a connector; 203. a main shaft; 204. bias blades; 205. a threaded column; 206. a diversion cone; 207. a sealing plug; 208. a guide rod; 209. a capacity expansion pipe; 210. a branch pipe; 211. a first sealing cover; 3. a leak cache assembly; 301. folding the corrugated pipe; 302. a second sealing cover; 4. a watch assembly; 401. a transparent reading cover; 402. a pointer; 403. a first magnetically coupled transmission structure; 404. assembling a bracket; 405. a shaft lever; 406. a second magnetic coupling transmission structure; 407. a circular gear; 408. a bourdon tube; 409. a special-shaped gear.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Examples:
referring to fig. 1-2, an embodiment of the present invention provides a pressure gauge sealing structure, including a case 1, a sealing component 2 is disposed at the bottom of the case 1, a leakage buffer component 3 is disposed at one side of the case 1, a meter component 4 is disposed in an inner cavity of the case 1, the meter component 4 includes a bourdon tube 408 that is communicated with an internal channel of the sealing component 2, a fluid to be measured enters the bourdon tube 408 from the sealing component 2 for pressure monitoring, when the bourdon tube 408 breaks, the leaked fluid will rush into the leakage buffer component 3 from the case 1 and be buffered, and at the same time, more fluid that has leaked into the bourdon tube 408 via the sealing component 2 will trigger a sealing mechanism inside the sealing component 2, so as to achieve the purpose of sealing the internal channel thereof.
In the prior art, a reading disc with scales is placed in the watch case 1, a gear set connected with the Bowden tube 408 is arranged, a transmission shaft of a driven gear of the gear set penetrates through the center of the reading disc and is provided with a pointer 402, meanwhile, in order to seal the inside of the watch case 1, rust of the internal gear set is avoided, glass sheets are generally embedded in the outer side of the reading disc so as to facilitate reading, however, when the Bowden tube 408 is used, the situation that the Bowden tube 408 breaks due to overlarge pressure of a measured fluid and the like can occur, and then high-pressure fluid breaks through the reading disc and the glass sheets, so that the dangerous situation of large leakage is caused.
According to the scheme, the problems are solved in a mode of 'space time change' and 'flow energy conversion', on one hand, by arranging the leakage buffer assembly 3 communicated with the inner cavity of the watchcase 1, the characteristic that the inner space of the leakage buffer assembly 3 is variable is utilized, when leakage is unavoidable, drainage and receiving buffering of leakage fluid are realized, and the dangerous condition that large leakage is caused by the fact that a reading disc and a glass sheet are broken in the prior art is avoided; on the other hand, due to the sudden drop of the pressure inside the bourdon tube 408, the flow rate and flow rate of the fluid instantaneously gushed into the inside of the meter case 1 will be suddenly increased, so that the sealing purpose of the pressure meter during leakage is finally achieved by converting the potential energy of the fluid suddenly increased flow rate into the energy required for triggering the sealing mechanism.
In this embodiment, referring to fig. 3-4, the sealing assembly 2 includes a main tube 201 installed at the bottom of the case 1, a connector 202 is installed at the top end port of the main tube 201, the side surface of the connector 202 is connected to one end of a bourdon tube 408, the center of the connector 202 is rotatably connected with a main shaft 203, a plurality of bias blades 204 are uniformly installed on the periphery of the middle part of the main shaft 203, a threaded column 205 is installed at the bottom end of the main shaft 203, the external thread of the threaded column 205 is connected to the lower side of the central column cavity of the sealing plug 207, the upper side of the central column cavity of the sealing plug 207 is matched with the external of the main shaft 203, the diameter of the main shaft 203 is smaller than the diameter of the threaded column 205, guide rods 208 are slidably connected to both sides of the interior of the sealing plug 207, a dilatation tube 209 is installed at the bottom end port of the main tube 201, and the upper and lower ends of the guide rods 208 are correspondingly installed at the upper and lower inner walls of the dilatation tube 209, respectively.
When the bourdon tube 408 breaks, the flow velocity and flow rate of the fluid passing through the sealing assembly 2 will suddenly increase, at this time, the fluid flowing through the flow deflecting vane 204 will drive the flow deflecting vane 204 to rotate rapidly, and then drive the threaded column 205 at the bottom end to rotate, under the limit guiding action of the guiding rods 208 at both sides, the sealing plug 207 will move upwards along the threaded column 205 at this time under the action of the threaded connection, when the sealing plug 207 is completely separated from the threaded column 205, because the sealing plug 207 and the main shaft 203 are in a sliding fit state, under the continuous impact action of the fluid on the bottom of the sealing plug 207, the sealing plug 207 will be pushed to move upwards rapidly along the main shaft 203 until the top port of the cavity of the dilatation tube 209 is completely sealed, thereby realizing the self-sealing purpose of the pressure gauge during leakage, and under the action of the bottom pressure, the sealing of the sealing plug 207 will be very stable.
Further, the sealing assembly 2 further includes a branch pipe 210 installed at a side of the main pipe 201, the height of the branch pipe 210 being aligned with the height of the flow deflecting vane 204, and a first sealing cover 211 being installed at one end of the branch pipe 210.
The structure can be used for overhauling the drift vane 204, and simultaneously clamps the sealing plug 207 downwards from the bottom end opening of the dilatation tube 209, and the sealing plug 207 can be reset for reuse by reversely rotating the drift vane 204 through the branch tube 210.
In this embodiment, referring again to fig. 3 together with fig. 5, the leakage buffer assembly 3 includes a folding bellows 301 mounted on one side of the case 1, and a second sealing cover 302 is mounted on one end of the folding bellows 301, and the folding bellows 301 has a capacity expansion function with a variable space because of a telescopic folding form.
In this embodiment, referring to fig. 6, the watch assembly 4 includes a transparent reading cover 401, the transparent reading cover 401 is mounted on the other side of the case 1, the other side of the case 1 is provided with scales, a pointer 402 is rotatably connected to the central inner wall of the transparent reading cover 401, and a first magnetic coupling transmission structure 403 is mounted on one end of the rotation shaft of the pointer 402, which is close to the case 1.
Further, referring to fig. 7, the watch assembly 4 further includes a mounting bracket 404 mounted on the top end of the connection head 202, a shaft 405 is rotatably connected to the top of the mounting bracket 404 at the center of the case 1, and a second magnetic coupling transmission structure 406 engaged with the first magnetic coupling transmission structure 403 is mounted on one end of the shaft 405.
In this embodiment, the first magnetic coupling transmission structure 403 and the second magnetic coupling transmission structure 406 are matched with each other, so that when the second magnetic coupling transmission structure 406 rotates, the pointer 402 connected with the first magnetic coupling transmission structure 403 can be driven to deflect at intervals and synchronously, thereby realizing that when the watchcase 1 is completely sealed, the reading effect is still achieved, avoiding the dangerous situation that the leaked fluid breaks through the reading disc and the glass sheet in the structural design of the prior art, thereby causing large leakage.
Further, referring to fig. 8, the other end of the shaft 405 is provided with a circular gear 407, one side of the circular gear 407 is engaged with a shaped gear 409, the axis of the shaped gear 409 is rotatably connected to the top side of the mounting bracket 404, and one end of the shaped gear 409 is connected to the other end of the bourdon tube 408 through a connecting rod.
The pressure gauge formed by the structure is the most commonly used mechanical pointer type pressure gauge at present, specifically, the Bowden tube 408 type or the spring tube type pressure gauge, the technology of the pressure gauge is mature, the operation is stable, the specific state of the pressure test operation is as follows, the three-way plug valve and the buffer tube are sequentially connected to the bottom end opening of the capacity expansion tube 209, the buffer tube can not be connected according to the situation, then the buffer tube is connected with the measured pipeline or the tank body, the three-way plug valve is operated to discharge the air in the pressure gauge, and the measured fluid slowly flows into the Bowden tube 408, when the inside of the Bowden tube 408 is completely filled, the communication channel between the measured pipeline or the tank body and the Bowden tube 408 is thoroughly opened, during the connection, the fluid can also rotate the main shaft 203 through the bias blades 204, after the Bowden tube 408 is filled with the fluid, the sealing plug 207 is still in the state of being connected with the screw column 205, the elastic deformation occurs under the action of the internal fluid pressure, and the magnetic force is further driven by the connecting rod and the special-shaped gear 409, the magnetic force 407 is further driven, the magnetic force is further driven by the first magnetic force is driven to rotate, the magnetic force is not to drive the magnetic force is driven to rotate, and the magnetic force is not normally driven to rotate the magnetic force is driven to rotate the sealing plug 408, and the magnetic force is not normally rotates the magnetic force drive the magnetic force piston 408, and rotates.
Further, as shown above, the manometer generally needs to be connected with a buffer tube in series to reduce the damage of the fluid pressure, especially the pulse pressure, to the bourdon tube 408 inside the manometer, in this embodiment, when the fluid flows through the dilatant tube 209, the fluid needs to bypass the sealing plug 207 to enter the bourdon tube 408 under the guiding action of the guiding cone 206 and the sealing plug 207, so that the blocking of the guiding cone 206 and the sealing plug 207 can also play a part of buffering action, which is beneficial to improving the service life of the manometer.
The sealing structure of the pressure gauge is suitable for fluids with lower viscosity, such as gas, tap water and other mediums, and the specific states of the sealing structure in operation are as follows, when the Bowden tube 408 breaks, leaked fluids will firstly flow into the inner cavity of the watchcase 1, and then when the fluids continuously flow into the watchcase 1 through the sealing assembly 2, under the internal huge pressure, the leaked fluids will flow towards the leakage buffer assembly 3 and prop up the folding bellows 301, and under the plugging effect of the second sealing cover 302, the leaked fluids are sealed in the folding bellows 301, so that leakage is avoided, and the effect of changing time with space is realized.
Meanwhile, when the leakage buffer assembly 3 receives more fluid for buffer storage due to capacity expansion, the flow speed and flow rate of the fluid in the sealing assembly 2 are suddenly increased, at the moment, the fluid flowing through the bias flow blade 204 drives the bias flow blade 204 to rotate rapidly, and then drives the threaded column 205 at the bottom end to rotate, under the limit guiding effect of the guide rods 208 at the two sides, the sealing plug 207 moves upwards along the threaded column 205 under the limit guiding effect of the guide rods 208, and when the sealing plug 207 is completely separated from the threaded column 205, the sealing plug 207 moves upwards rapidly along the main shaft 203 until the top port of the inner cavity of the expansion tube 209 is completely sealed under the continuous impact effect of the fluid on the bottom of the sealing plug 207 due to the sliding fit state between the sealing plug 207 and the main shaft 203, so that the self-sealing purpose of the pressure gauge during leakage is realized, and the sealing of the sealing plug 207 is more stable under the effect of the fluid pressure at the bottom, the dangerous condition of continuous leakage is avoided, and the effect of 'flow energy conversion' is realized.
Further, in this scheme, because transparent reading cover 401 is compared with the prior art, it does not communicate with the inner cavity of watchcase 1, therefore under the triple sealing effect described above, avoided the fluid that bourdon tube 408 breaks and leads to breaks through conventional transparent reading cover 401 and forms the condition of revealing greatly, this scheme simple structure, the effect is good.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a manometer seal structure, includes watchcase (1), its characterized in that: the sealing assembly (2) is arranged at the bottom of the watchcase (1), the leakage buffer assembly (3) is arranged at one side of the watchcase (1), the meter assembly (4) is arranged in the inner cavity of the watchcase (1), the meter assembly (4) comprises a Bowden tube (408) communicated with the inner channel of the sealing assembly (2), a measured fluid enters the Bowden tube (408) from the sealing assembly (2) to perform pressure monitoring, when the Bowden tube (408) breaks, the leaked fluid is buffered in the leakage buffer assembly (3) from the watchcase (1), and more fluid which is buffered in the Bowden tube (408) through the sealing assembly (2) triggers a sealing mechanism in the sealing assembly (2) so as to realize the purpose of sealing the inner channel of the sealing assembly;
the sealing assembly (2) comprises a main pipe (201) arranged at the bottom of a watchcase (1), a connector (202) is arranged at the top end opening of the main pipe (201), the side surface of the connector (202) is connected with one end of a Bowden tube (408), the center of the connector (202) is rotationally connected with a main shaft (203), a plurality of bias blades (204) are uniformly arranged on the middle part of the main shaft (203) in a circle, a threaded column (205) is arranged at the bottom end of the main shaft (203), the external threads of the threaded column (205) are connected to the lower side of a central column cavity of a sealing plug (207), the upper side of the central column cavity of the sealing plug (207) is matched to the outside of the main shaft (203), guide rods (208) are connected to the two sides of the inside of the sealing plug (207) in a sliding mode, a capacity expanding tube (209) is arranged at the bottom end opening of the main pipe (201), and the upper end and the lower end of the guide rods (208) are correspondingly arranged on the inner walls of the upper side and the lower side of the capacity expanding tube (209) respectively;
the leakage buffer assembly (3) comprises a folding corrugated pipe (301) arranged on one side of the watchcase (1), and a second sealing cover (302) is arranged at one end of the folding corrugated pipe (301).
2. A pressure gauge sealing structure according to claim 1, wherein: the diameter of the main shaft (203) is smaller than the diameter of the threaded column (205).
3. A pressure gauge sealing structure according to claim 1, wherein: the sealing assembly (2) further comprises a branch pipe (210) arranged on the side face of the main pipe (201), the height of the branch pipe (210) is aligned with the height of the bias flow blades (204), and a first sealing cover (211) is arranged at one end of the branch pipe (210).
4. A pressure gauge sealing structure according to claim 1, wherein: the watch assembly (4) comprises a transparent reading cover (401), the transparent reading cover (401) is arranged on the other side of the watch case (1), scales are arranged on the other side of the watch case (1), and a pointer (402) is rotatably connected to the inner wall of the center of the transparent reading cover (401).
5. The pressure gauge sealing structure of claim 4, wherein: a first magnetic coupling transmission structure (403) is arranged at one end, close to the watchcase (1), of the rotating shaft of the pointer (402).
6. The pressure gauge sealing structure of claim 4, wherein: the watch assembly (4) further comprises an assembly bracket (404) arranged at the top end of the connector (202), a shaft lever (405) is rotatably connected to the top of the assembly bracket (404) at the center of the watch case (1), and a second magnetic coupling transmission structure (406) matched with the first magnetic coupling transmission structure (403) is arranged at one end of the shaft lever (405).
7. The pressure gauge sealing structure of claim 6, wherein: the circular gear (407) is installed to the other end of axostylus axostyle (405), one side meshing of circular gear (407) is connected with special-shaped gear (409), the axle center department of special-shaped gear (409) rotates and connects in the top one side of assembly support (404), the other end at Bowden tube (408) is passed through to the one end of special-shaped gear (409).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310911454.3A CN116642620B (en) | 2023-07-25 | 2023-07-25 | Pressure gauge sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310911454.3A CN116642620B (en) | 2023-07-25 | 2023-07-25 | Pressure gauge sealing structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116642620A CN116642620A (en) | 2023-08-25 |
| CN116642620B true CN116642620B (en) | 2023-10-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310911454.3A Active CN116642620B (en) | 2023-07-25 | 2023-07-25 | Pressure gauge sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116642620B (en) |
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| CN207280668U (en) * | 2017-09-21 | 2018-04-27 | 天津市泰菲特仪器仪表技术有限公司 | A kind of Leakproof safety manometer |
| CN208155514U (en) * | 2018-06-01 | 2018-11-27 | 钟耿 | Water injection well anti-freeze pressure meter |
| CN209043513U (en) * | 2018-11-06 | 2019-06-28 | 上海赛途仪器仪表有限公司 | A kind of hyperpressure table sealing installing and connecting apparatus |
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2023
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| CN116642620A (en) | 2023-08-25 |
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Denomination of invention: A pressure gauge sealing structure Granted publication date: 20231010 Pledgee: Jiangsu Taicang Rural Commercial Bank Co.,Ltd. Guizhuang Branch Pledgor: Suzhou Xinyida Instrument Technology Co.,Ltd. Registration number: Y2024980002424 |