CN112798177A - Be applied to pressure sensor's plug structure that prevents frostbite - Google Patents
Be applied to pressure sensor's plug structure that prevents frostbite Download PDFInfo
- Publication number
- CN112798177A CN112798177A CN202110124708.8A CN202110124708A CN112798177A CN 112798177 A CN112798177 A CN 112798177A CN 202110124708 A CN202110124708 A CN 202110124708A CN 112798177 A CN112798177 A CN 112798177A
- Authority
- CN
- China
- Prior art keywords
- rubber sleeve
- hole
- plug structure
- ring
- detection module
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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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
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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
- G01L19/14—Housings
- G01L19/142—Multiple part housings
- G01L19/144—Multiple part housings with dismountable parts, e.g. for maintenance purposes or for ensuring sterile conditions
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention relates to an anti-freezing plug structure applied to a pressure sensor, which comprises a shell, wherein a pressure detection module is installed in the shell, a through hole which enables the pressure detection module to be communicated with the outside is formed in the shell, the anti-freezing plug structure penetrates through the through hole and comprises an inner support and a rubber sleeve, the rubber sleeve is sleeved outside the inner support, an air cavity is formed between the outer side of the rubber sleeve and the inner wall of the through hole, a sealing ring is sleeved outside the rubber sleeve, the rubber sleeve is in contact with the pressure detection module, a medium circulation through hole which is communicated with the rubber sleeve and the outside is formed in the inner support, a communication groove hole which is communicated with the medium circulation through hole and the inner side of the periphery of the rubber sleeve is formed in the inner support, the medium is not in direct contact with the pressure detection module, the pressure detection module is not easy to damage and supports the anti-freezing plug structure through, the anti-freezing plug has a stable structure and a good anti-freezing effect.
Description
Technical Field
The invention relates to a sensor, in particular to an anti-freezing plug structure applied to a pressure sensor.
Background
Pressure sensor is the smart machine who detects liquid pressure parameter, generally install in the shell, liquid need get into in the shell, with pressure detection module direct contact, detect medium pressure, but some media have corrosivity, pressure sensor and the long-time contact of medium, damage pressure detection module easily, cause the sensor fragile, and life is short, and in cold and hot weather, the medium becomes solid-state by liquid, and the volume can increase, can oppress pressure detection module, cause pressure detection module damaged, also can shorten sensor's life.
Disclosure of Invention
The applicant has made research and improvement aiming at the above disadvantages and provides an anti-freezing plug structure applied to a pressure sensor.
The technical scheme adopted by the invention is as follows:
the utility model provides a be applied to pressure sensor's anti-freezing stopper structure, the sensor includes the shell, installation pressure detection module in the shell, set up the through-hole that makes pressure detection module and external intercommunication in the shell, anti-freezing stopper structure wears in the through-hole, anti-freezing stopper structure includes inside support and rubber sleeve, the rubber sleeve cover is established in the inside support outside, leave the clearance between the rubber sleeve outside and the through-hole inner wall, form the air chamber, and the rubber sleeve outside cover is established and is used for the sealing ring of sealed shell and anti-freezing stopper structure, the rubber sleeve closely laminates with pressure detection module, set up the intercommunication rubber sleeve on the inside support and be located the inboard and external medium circulation through-hole of pressure detection module laminating one side, the intercommunication slotted hole of intercommunication medium circulation through-hole and the peripheral inboard of rubber sleeve is seted up to the inside support.
As a further improvement of the above technical solution:
the inner support is provided with a supporting base for supporting the rubber sleeve.
The rubber sleeve is located the sealed bulge loop of position body coupling between the support base of sealing ring and inside support, and sealed bulge loop width is greater than the clearance between sealing ring and the support base, compresses the sealed bulge loop upper and lower side through sealing ring and support base, makes the sealed bulge loop seal the clearance before supporting base and sealing ring.
The rubber support ring is sleeved at the position, located in the air cavity, of the outer side of the rubber sleeve, and a plurality of arc grooves are uniformly formed in the periphery of the rubber support ring.
The rubber sleeve outside is located rubber support ring upper end cover and establishes the plug protection ring that prevents frostbite, plug protection ring and rubber sleeve interference fit prevent frostbite.
And a circle of side grooves communicated with the communicating slotted holes are formed in the periphery of the inner support.
The rubber sleeve is provided with an inner groove at the inner side of one side, which is positioned at the joint of the pressure detection module, and is matched with the inner groove, and the inner support is provided with a top groove communicated with the medium circulation through hole.
The invention has the following beneficial effects: be applied to pressure sensor's anti-freezing stopper structure, the medium gets into anti-freezing stopper, medium pressure acts on the rubber sleeve, the rubber sleeve transmits pressure to pressure detection module, can detect out medium pressure, and anti-freezing stopper structure adopts the combination of inside support cooperation rubber sleeve to form, form sealed air chamber between inside support and rubber sleeve, become solid-state by liquid when the medium, the volume grow, play the cushioning effect through sealed air chamber, play the effect of protection sensor, and inside support plays the supporting role, the skew of anti-freezing stopper structure can not appear, make anti-freezing stopper structure more firm, it is effectual to prevent frostbite, in addition, still reducible filling volume that gets into inside medium through inside support, thereby reducible medium becomes the inflation volume when solid-state by liquid.
Drawings
Fig. 1 is a top view of an anti-freeze plug structure applied to a pressure sensor provided by the present invention.
Fig. 2 is a sectional view a-a in fig. 1.
Fig. 3 is a sectional view taken along line B-B in fig. 1.
Fig. 4 is a schematic structural diagram of an internal bracket of an anti-freeze plug structure applied to a pressure sensor provided by the invention.
Fig. 5 is a schematic structural diagram of a rubber sleeve of an anti-freeze plug structure applied to a pressure sensor provided by the invention.
FIG. 6 is a schematic structural diagram of a rubber support ring with an anti-freeze plug structure applied to a pressure sensor according to the present invention.
In the figure: 1. a housing; 11. a through hole; 2. a pressure detection module; 3. an inner support; 31. a medium circulation through hole; 32. the groove hole is communicated; 33. a support base; 34. a side groove; 35. a top groove; 4. a rubber sleeve; 41. a sealing convex ring; 42. an inner groove; 5. an air chamber; 6. a seal ring; 7. a rubber support ring; 71. an arc groove; 8. the anti-freezing plug protection ring.
Detailed Description
The following description of the present embodiment will be made with reference to the accompanying drawings
As shown in fig. 1 to 6, the sensor anti-freezing plug structure of the embodiment includes a housing 1, a pressure detection module 2 is installed in the housing 1, a through hole 11 is formed in the housing 1 to communicate the pressure detection module 2 with the outside, the anti-freezing plug structure penetrates through the through hole 11, the anti-freezing plug structure includes an inner bracket 3 and a rubber sleeve 4, the rubber sleeve 4 is sleeved on the outer side of the inner bracket 3, the inner bracket 3 is provided with a supporting base 33 for supporting the rubber sleeve 4, a gap is formed between the outer side of the rubber sleeve 4 and the inner wall of the through hole 11 to form an air cavity 5, a sealing ring 6 for sealing the housing 1 and the anti-freezing plug structure is sleeved on the outer side of the rubber sleeve 4, the rubber sleeve 4 is positioned between the sealing ring 6 and the supporting base 33 of the inner bracket 3, and is integrally connected with a sealing convex ring 41, the width of the sealing convex ring 41 is greater than the gap between the sealing ring 6 and the supporting base, The downside makes the clearance before sealed bulge loop 41 sealed support base 33 and sealing ring 6, increases sealing area, improves sealing performance, and the up end of rubber sleeve 4 closely laminates with pressure detection module 2 lower extreme, sets up the inboard medium circulation through-hole 31 with the external world of intercommunication rubber sleeve 4 up end on the inside support 3, and inside support 3 sets up the intercommunication medium circulation through-hole 31 and the peripheral inboard intercommunication slotted hole 32 of rubber sleeve 4.
The rubber support ring 7 is sleeved at the position, located in the air cavity 5, on the outer side of the rubber sleeve 4, a plurality of arc grooves 71 are uniformly formed in the periphery of the rubber support ring 7, and the rubber sleeve 4 can expand and contract uniformly through the rubber support ring 7.
An anti-freezing plug protection ring 8 is sleeved on the upper end of the rubber support ring 7 on the outer side of the rubber sleeve 4, the anti-freezing plug protection ring 8 is in interference fit with the rubber sleeve 4, the anti-freezing plug protection ring 8 prevents a medium from being pulled to the upper end face of the anti-freezing plug when expanding, and the rubber sleeve 4 is placed to be separated from the pressure detection module 2.
The periphery of the inner bracket 3 is provided with a circle of side grooves 34 communicated with the communication slot holes 32.
The rubber sleeve 4 is provided with an inner groove 42 at the inner side of the contact side of the pressure detection module 2, and a top groove 35 communicated with the medium circulation through hole 31 is formed in the support 3 inside the inner groove 42.
When the anti-freezing plug structure applied to the pressure sensor is installed, the pressure detection module 2 is firstly installed in the shell 1, then the rubber sleeve 4 is sleeved on the inner support 3, then the sealing ring 6, the rubber support ring 7 and the anti-freezing plug protection ring 8 are sequentially sleeved on the outer side of the rubber sleeve 4, finally the anti-freezing plug structure is plugged into the through hole 11 to complete the installation, when the sensor is detected, the medium flows in from the medium circulation through-hole 31, enters the inner groove 42 and the top groove 35, acts on the inner side of the upper end face of the rubber sleeve 4, transmits the pressure to the pressure detection module 2 through the rubber sleeve 4, namely, the pressure of the medium can be detected, when the medium is changed from liquid state to solid state and the volume is increased, the medium passes through the communication slot hole 32 and outwards compresses the air cavity 5 outside the rubber sleeve 4, the air cavity 5 plays a role in buffering, does not press the sensor and plays a role in protecting the sensor; in addition, the rubber support ring 7 can play a role in assisting the rebound of the rubber sleeve 4 when the medium changes from a solid state to a liquid state.
The foregoing description is illustrative of the present invention and is not to be construed as limiting thereof, the scope of the invention being defined by the appended claims, which may be modified in any manner without departing from the basic structure thereof.
Claims (7)
1. The utility model provides a be applied to pressure sensor's plug structure that prevents frostbite, sensor include shell (1), installation pressure detection module (2) in shell (1), set up through-hole (11) that make pressure detection module (2) and external intercommunication in shell (1), its characterized in that: the anti-freezing plug structure is worn in through-hole (11), the anti-freezing plug structure includes inside support (3) and rubber sleeve (4), the rubber sleeve (4) cover is established in the inside support (3) outside, leave the clearance between the rubber sleeve (4) outside and through-hole (11) inner wall, form air chamber (5), and rubber sleeve (4) outside cover is established and is used for seal housing (1) and sealing ring (6) of anti-freezing plug structure, rubber sleeve (4) closely laminate with pressure detection module (2), set up intercommunication rubber sleeve (4) on inside support (3) and be located pressure detection module (2) laminating one side inboard and external medium circulation through-hole (31), inside support (3) are seted up intercommunication medium circulation through-hole (31) and rubber sleeve (4) peripheral inboard intercommunication slotted hole (32).
2. The antifreeze plug structure applied to a pressure sensor according to claim 1, wherein: the inner support (3) is provided with a supporting base (33) for supporting the rubber sleeve (4).
3. The antifreeze plug structure applied to a pressure sensor according to claim 2, wherein: the rubber sleeve (4) is located at a position between the sealing ring (6) and the supporting base (33) of the inner support (3) and is integrally connected with the sealing convex ring (41), the width of the sealing convex ring (41) is larger than the gap between the sealing ring (6) and the supporting base (33), and the upper side and the lower side of the sealing convex ring (41) are compressed through the sealing ring (6) and the supporting base (33), so that the sealing convex ring (41) seals the gap between the supporting base (33) and the sealing ring (6).
4. The antifreeze plug structure applied to a pressure sensor according to claim 1, wherein: the rubber support ring (7) is sleeved at the position, located on the air cavity (5), on the outer side of the rubber sleeve (4), and a plurality of arc grooves (71) are uniformly formed in the periphery of the rubber support ring (7).
5. The antifreeze plug structure applied to a pressure sensor according to claim 4, wherein: the rubber sleeve (4) outside is located rubber support ring (7) upper end cover and is established freezing plug protection ring (8), freezing plug protection ring (8) and rubber sleeve (4) interference fit.
6. The antifreeze plug structure applied to a pressure sensor according to claim 1, wherein: and a circle of side grooves (34) communicated with the communication slotted holes (32) are formed in the periphery of the inner support (3).
7. The antifreeze plug structure applied to a pressure sensor according to claim 1, wherein: the inner groove (42) is formed in the inner side, located on the attaching side of the pressure detection module (2), of the rubber sleeve (4), and the inner groove (42) is matched with the top groove (35) formed in the inner support (3) and communicated with the medium circulation through hole (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110124708.8A CN112798177A (en) | 2021-01-29 | 2021-01-29 | Be applied to pressure sensor's plug structure that prevents frostbite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110124708.8A CN112798177A (en) | 2021-01-29 | 2021-01-29 | Be applied to pressure sensor's plug structure that prevents frostbite |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112798177A true CN112798177A (en) | 2021-05-14 |
Family
ID=75812783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110124708.8A Pending CN112798177A (en) | 2021-01-29 | 2021-01-29 | Be applied to pressure sensor's plug structure that prevents frostbite |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112798177A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114323415A (en) * | 2021-12-21 | 2022-04-12 | 兰灵才 | Pressure sensor with overpressure alarm function |
-
2021
- 2021-01-29 CN CN202110124708.8A patent/CN112798177A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114323415A (en) * | 2021-12-21 | 2022-04-12 | 兰灵才 | Pressure sensor with overpressure alarm function |
| CN114323415B (en) * | 2021-12-21 | 2024-04-26 | 哈工科讯(沈阳)工业技术研究院有限公司 | Pressure sensor with overpressure alarm function |
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