CN113294080A - Device for automatically detecting air tightness of freezing door and preventing sealing ring from low-temperature aging - Google Patents
Device for automatically detecting air tightness of freezing door and preventing sealing ring from low-temperature aging Download PDFInfo
- Publication number
- CN113294080A CN113294080A CN202110551449.7A CN202110551449A CN113294080A CN 113294080 A CN113294080 A CN 113294080A CN 202110551449 A CN202110551449 A CN 202110551449A CN 113294080 A CN113294080 A CN 113294080A
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- Prior art keywords
- rod
- door
- sealing ring
- low
- automatically detecting
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- 238000007789 sealing Methods 0.000 title claims abstract description 57
- 230000008014 freezing Effects 0.000 title claims abstract description 18
- 238000007710 freezing Methods 0.000 title claims abstract description 18
- 230000032683 aging Effects 0.000 title claims abstract description 16
- 238000001514 detection method Methods 0.000 claims abstract description 21
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims description 13
- 230000015556 catabolic process Effects 0.000 claims 5
- 238000006731 degradation reaction Methods 0.000 claims 5
- 230000000694 effects Effects 0.000 abstract description 4
- 210000003437 trachea Anatomy 0.000 abstract description 3
- 230000005574 cross-species transmission Effects 0.000 abstract 1
- 244000309464 bull Species 0.000 description 11
- 238000005057 refrigeration Methods 0.000 description 4
- 238000004378 air conditioning Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000011550 stock solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B7/00—Special arrangements or measures in connection with doors or windows
- E06B7/16—Sealing arrangements on wings or parts co-operating with the wings
- E06B7/22—Sealing arrangements on wings or parts co-operating with the wings by means of elastic edgings, e.g. elastic rubber tubes; by means of resilient edgings, e.g. felt or plush strips, resilient metal strips
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B7/00—Special arrangements or measures in connection with doors or windows
- E06B7/16—Sealing arrangements on wings or parts co-operating with the wings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/02—Doors; Covers
- F25D23/028—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/005—Sealing rings
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/16—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention relates to the technical field of air tightness detection of a freezing door, and discloses a device for automatically detecting air tightness of the freezing door and preventing a sealing ring from being aged at low temperature. This automatic detect device that freezing door gas tightness and prevent sealing washer low temperature are ageing moves down the time through the bracing piece and extrudees the gas in the air chamber to the sealing washer in, if the sealing washer gas tightness is good then gas can't spill over to gaseous overcoming the holding power of stabilizing the spring in the trachea of right side in the air chamber, making the slurcam and detecting switch contact, the pilot lamp lights the green light, otherwise explains the gas tightness bad, automatic effect that carries out the gas tightness and detect when having realized the door plant and closing.
Description
Technical Field
The invention relates to the technical field of refrigeration door airtightness detection, in particular to a device for automatically detecting the airtightness of a refrigeration door and preventing a sealing ring from being aged at a low temperature.
Background
Freezing door mainly used is in some large-scale cold-stored cellars, in order to prevent that the air conditioning in the cold-stored cellars from revealing, must guarantee that the gas tightness of freezing door is good, just can avoid the air conditioning in the cold-stored cellars to leak, current sealing equipment mainly seals through the sealing washer, but the leakproofness of door plant can't be carried out automatically when the door plant is closed detects, when leading to the door plant to seal badly, the staff can't in time discover to cause the product to damage, current equipment lacks the measure of maintaining the sealing washer simultaneously, lead to the sealing washer to use under low temperature environment for a long time, the ageing condition appears very easily, thereby the sealing washer has increased use cost to need to be changed once in several months.
Therefore, those skilled in the art have provided a device for automatically detecting the airtightness of the refrigeration door and preventing the low-temperature aging of the gasket, so as to solve the above-mentioned problems in the background art.
Summary of the invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a device for automatically detecting the air tightness of a freezing door and preventing the low-temperature aging of a sealing ring, which has the advantages of automatically detecting the air tightness when a door plate is closed and automatically maintaining the sealing ring to prevent the low-temperature aging from being too fast, and solves the problems that the existing equipment cannot automatically detect the air tightness when the door plate is closed and cannot maintain the sealing ring, so that the service life of the sealing ring is low, and the like.
(II) technical scheme
In order to realize the purposes of automatically detecting air tightness and automatically maintaining a sealing ring to prevent the low-temperature aging speed from being too fast when the door plate is closed, the invention provides the following technical scheme:
a device for automatically detecting the air tightness of a freezing door and preventing the low-temperature aging of a sealing ring comprises a machine body, a door plate is movably arranged above the machine body, the sealing ring is fixedly arranged below the door plate, a supporting rod is movably arranged on the inner side of the sealing ring, two sides of the middle part of the supporting rod are rotatably connected with a swinging rod, the outer end of the swinging rod is movably connected with a clamping rod, an air chamber is arranged below the supporting rod, a supporting spring is fixedly connected with the lower end of the supporting rod, first rotating rods are rotatably arranged on two sides below the supporting rod, a second rotating rod is rotatably connected with the left end of the first rotating rod on the left side, a fixed valve is movably connected with the lower end of the second rotating rod, air pipes are fixedly connected with the upper side and the lower side of the fixed valve, a sliding rod is movably arranged inside the air pipe on the right side of the air chamber, a stabilizing spring is fixedly connected with the inner side of the sliding rod, a pushing plate is movably arranged on the right side of the stabilizing spring, a detection switch is fixedly arranged below the pushing plate, the right end swing joint of the first bull stick in bracing piece right side has the actuating lever, and the right side movable mounting of actuating lever has the driven lever, and the top movable mounting of driven lever has the fly leaf, and the top of fly leaf is provided with the stock solution room.
Preferably, an indicator lamp is fixedly mounted on the outer side of the upper portion of the machine body, the detection switch is electrically connected with the indicator lamp, and the indicator lamp is green after the detection switch is turned on.
Preferably, the diameter in bracing piece middle section is greater than the diameter of upper and lower two sections, and the below in bracing piece middle section is trapezoidal, and trapezoidal can make things convenient for when the bracing piece removes to promote first bull stick and rotate.
Preferably, first bull stick is the L type, and first bull stick rotates with the organism to be connected for when the bracing piece removed, can drive first bull stick and rotate and drive the rotation of second bull stick.
Preferably, the return pipe is fixedly installed on two sides of the detection switch, the one-way valve is fixedly installed on the outer side of the return pipe, and the one-way valve is in a conducting state from the detection switch to the air chamber.
Preferably, a connecting rod is rotatably connected between the inner side of the driven rod and the lower end of the movable plate, so that when the driven rod moves towards the inner side, the movable plate can be driven to move upwards through the connecting rod.
(III) advantageous effects
Compared with the prior art, the invention provides a device for automatically detecting the air tightness of a freezing door and preventing the low-temperature aging of a sealing ring, which has the following beneficial effects:
1. the device for automatically detecting the air tightness of the freezing door and preventing the low-temperature aging of the sealing ring drives the supporting rod to move downwards to drive the first rotating rod on the left side to rotate when the door plate is closed, so that the first rotating rod drives the second rotating rod to rotate to open the fixed valve, and the gas in the gas chamber is extruded into the sealing ring through the gas pipe when the supporting rod moves downwards, if the air tightness of the sealing ring is good, the gas cannot overflow through the gas pipe on the left side, so that the gas in the gas chamber overcomes the supporting force of the stabilizing spring in the gas pipe on the right side, enters the upper part of the push plate and extrudes the push plate to move downwards and contact with the detection switch, the green light is turned on by the indicator light on the outer side of the machine body, the air tightness of the door plate is good, otherwise, the detection switch cannot be turned on, and the red light is turned on all the indicator light to remind a worker of the poor air tightness of the door plate, the effect that the air tightness detected can be carried out automatically when having realized the door plant and closing, cold air leakage has been avoided appearing in the cold-stored cellar and has been caused the product to damage.
2. The device for automatically detecting the air tightness of the freezing door and preventing the low-temperature aging of the sealing ring can simultaneously push the first rotating rod on the right side to rotate when the first rotating rod on the left side is pushed to rotate by the downward movement of the supporting rod, so that the first rotating rod on the right side drives the driving rod to move upwards and pushes the driven rod to move inwards, the driven rod drives the movable plate to move upwards through the connecting rod, the protection liquid in the liquid storage chamber is extruded to the outer side of the sealing ring, the surface of the sealing ring is filled with the protection liquid, a layer of oil film can be formed between the sealing ring and the door plate by utilizing the protection liquid, the sealing property of the sealing ring is enhanced, meanwhile, the protection liquid covers the surface of the sealing ring, the sealing ring is prevented from being aged in advance in a low-temperature environment such as a cold cellar for a long time, the effect of automatically maintaining the sealing ring and preventing the low-temperature aging is realized, and the sealing ring is prevented from being frequently replaced, the use cost is increased.
Drawings
FIG. 1 is a schematic view of the interior of the structure of the present invention;
FIG. 2 is a partial view of the interior of the structure of the present invention;
FIG. 3 is a schematic view of the inside of the support rod structure according to the present invention;
FIG. 4 is an enlarged view of the structure shown in FIG. 2 at A according to the present invention;
FIG. 5 is an enlarged view of the structure shown at B in FIG. 2 according to the present invention.
In the figure: 1. a body; 2. a door panel; 3. a seal ring; 4. a support bar; 5. a swing lever; 6. a clamping lever; 7. an air chamber; 8. a support spring; 9. a first rotating lever; 10. a second rotating rod; 11. a fixed valve; 12. an air tube; 13. a slide bar; 14. a stabilizing spring; 15. a push plate; 16. a detection switch; 17. a one-way valve; 18. a drive rod; 19. a driven lever; 20. a movable plate; 21. a liquid storage chamber.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, a device for automatically detecting the air tightness of a refrigeration door and preventing the low-temperature aging of a sealing ring comprises a machine body 1, a door plate 2 is movably arranged above the machine body 1, an indicator lamp is fixedly arranged on the outer side above the machine body 1, a detection switch 16 is electrically connected with the indicator lamp, the indicator lamp is green after the detection switch 16 is turned on, a sealing ring 3 is fixedly arranged below the door plate 2, a support rod 4 is movably arranged on the inner side of the sealing ring 3, the diameter of the middle section of the support rod 4 is larger than that of the upper section and the lower section, the lower section of the support rod 4 is trapezoidal, the trapezoidal shape can facilitate the support rod 4 to push a first rotating rod 9 to rotate when moving, swing rods 5 are rotatably connected to the two sides of the middle part of the support rod 4, clamping rods 6 are movably connected to the outer ends of the swing rods 5, an air chamber 7 is arranged below the support rod 4, and a support spring 8 is fixedly connected to the lower end of the support rod 4, first bull stick 9 is installed in the below both sides rotation of bracing piece 4, and first bull stick 9 is the L type, and first bull stick 9 rotates with organism 1 to be connected for when bracing piece 4 removed, can drive first bull stick 9 and rotate and drive second bull stick 10 and rotate.
The left end of a first rotating rod 9 on the left side is rotatably connected with a second rotating rod 10, the lower end of the second rotating rod 10 is movably connected with a fixed valve 11, the upper side and the lower side of the fixed valve 11 are fixedly connected with air pipes 12, the inside of the air pipe 12 on the right side of an air chamber 7 is movably provided with a sliding rod 13, the inner side of the sliding rod 13 is fixedly connected with a stabilizing spring 14, the right side of the stabilizing spring 14 is movably provided with a pushing plate 15, the lower side of the pushing plate 15 is fixedly provided with a detection switch 16, the two sides of the detection switch 16 are fixedly provided with a return pipe, the outer side of the return pipe is fixedly provided with a one-way valve 17, the direction from the detection switch 16 to the air chamber 7 of the one-way valve 17 is in a conduction state, the right end of the first rotating rod 9 on the right side of a support rod 4 is movably connected with a drive rod 18, the right side of the drive rod 18 is movably provided with a driven rod 19, a connecting rod is rotatably connected between the inner side of the driven rod 19 and the lower end of the movable plate 20, when the driven rod 19 moves inwards, the movable plate 20 can be driven by the connecting rod to move upwards, the movable plate 20 is movably mounted above the driven rod 19, and the liquid storage chamber 21 is arranged above the movable plate 20.
The working principle is as follows: when the door sealing device works, when the door panel 2 is closed, the door panel 2 pushes the supporting rod 4 to move downwards, then the door panel 2 is attached to the sealing ring 3, when the supporting rod 4 moves downwards, the supporting rod 4 can drive the swinging rods 5 on two sides above to rotate, so that the clamping rod 6 at the outer end of the swinging rod 5 moves upwards, because the sealing ring 3 has a certain deformation amount, the clamping rod 6 can extrude and deform the sealing ring 3, so that the sealing ring 3 is closely attached to the door panel 2, meanwhile, the supporting rod 4 utilizes the trapezoid below the middle section to drive the first rotating rod 9 on the left side to rotate, so that the first rotating rod 9 drives the second rotating rod 10 to rotate, the fixed valve 11 at the lower end of the second rotating rod 10 is opened, and when the supporting rod 4 moves downwards, gas in the gas chamber 7 is extruded into the sealing ring 3 at the upper end of the gas pipe 12 through the gas pipe 12, if the sealing ring 3 has good gas tightness, the gas can not overflow through the gas pipe 12 on the left side, so that the gas in the gas chamber 7 enters the right gas pipe 12 and overcomes the supporting force of the stabilizing spring 14, enter into the top of slurcam 15, make gaseous extrusion slurcam 15 move down and with the contact of detection switch 16, thereby to detect switch 16 and open, make the pilot lamp in the organism 1 outside light green light, it is good to explain the gas tightness of door plant, otherwise the gas in the trachea 12 of left side overflows through sealing washer 3, make the gaseous slide bar that can't promote in the trachea 12 of right side, thereby can't open detection switch 16, then the pilot lamp lights red light all the time and reminds staff's door plant 2 gas tightness bad, can carry out the gas tightness automatically and detect when having realized door plant 2 and closing, cold air leakage appears in having avoided cold-stored cellar, cause the product to damage.
Meanwhile, when the supporting rod 4 moves downwards to push the first rotating rod 9 on the left to rotate, the first rotating rod 9 on the right can be pushed to rotate at the same time, the first rotating rod 9 on the right drives the driving rod 18 to move upwards, the driven rod 19 is pushed to move inwards, the driven rod 19 drives the movable plate 20 to move upwards through the connecting rod, the protection liquid in the liquid storage chamber 21 is extruded to the outer side of the sealing ring 3, the surface of the sealing ring 3 is filled with the protection liquid, the protection liquid is utilized, a layer of oil film can be formed between the sealing ring 3 and the door plate 2, the sealing performance of the sealing ring 3 is enhanced, meanwhile, the protection liquid covers the surface of the sealing ring 3, the sealing ring 3 is prevented from being aged in advance in a low-temperature environment such as a cold storage cellar for a long time, automatic maintenance on the sealing ring 3 is realized, low-temperature aging is prevented, frequent replacement of the sealing ring 3 is avoided, and the use cost is increased.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides an automatic detect freezing door gas tightness and prevent the ageing device of sealing washer low temperature, includes organism (1), its characterized in that: a door plate (2) is movably mounted above the machine body (1), a sealing ring (3) is fixedly mounted below the door plate (2), a supporting rod (4) is movably mounted on the inner side of the sealing ring (3), swing rods (5) are rotatably connected to two sides of the middle of the supporting rod (4), a clamping rod (6) is movably connected to the outer end of each swing rod (5), an air chamber (7) is arranged below the supporting rod (4), a supporting spring (8) is fixedly connected to the lower end of the supporting rod (4), first rotating rods (9) are rotatably mounted on two sides of the lower portion of the supporting rod (4), a second rotating rod (10) is rotatably connected to the left end of each first rotating rod (9), a fixed valve (11) is movably connected to the lower end of each second rotating rod (10), air pipes (12) are fixedly connected to the upper side and the lower side of the fixed valve (11), and a sliding rod (13) is movably mounted inside the air pipe (12) on the right side of the air chamber (7), the inner side of the sliding rod (13) is fixedly connected with a stabilizing spring (14), the right side of the stabilizing spring (14) is movably provided with a pushing plate (15), a detection switch (16) is fixedly arranged below the pushing plate (15), the right end of a first rotating rod (9) on the right side of the supporting rod (4) is movably connected with a driving rod (18), the right side of the driving rod (18) is movably provided with a driven rod (19), a movable plate (20) is movably arranged above the driven rod (19), and a liquid storage chamber (21) is arranged above the movable plate (20).
2. The apparatus of claim 1, wherein the apparatus for automatically detecting the airtightness of the freezing door and preventing the low-temperature degradation of the gasket comprises: an indicator lamp is fixedly mounted on the outer side of the upper portion of the machine body (1), and the detection switch (16) is electrically connected with the indicator lamp.
3. The apparatus of claim 1, wherein the apparatus for automatically detecting the airtightness of the freezing door and preventing the low-temperature degradation of the gasket comprises: the diameter of the middle section of the supporting rod (4) is larger than the diameters of the upper section and the lower section, and the lower part of the middle section of the supporting rod (4) is trapezoidal.
4. The apparatus of claim 1, wherein the apparatus for automatically detecting the airtightness of the freezing door and preventing the low-temperature degradation of the gasket comprises: the first rotating rod (9) is L-shaped, and the first rotating rod (9) is rotatably connected with the machine body (1).
5. The apparatus of claim 1, wherein the apparatus for automatically detecting the airtightness of the freezing door and preventing the low-temperature degradation of the gasket comprises: the return pipe is fixedly installed on two sides of the detection switch (16), the one-way valve (17) is fixedly installed on the outer side of the return pipe, and the direction from the detection switch (16) to the air chamber (7) of the one-way valve (17) is in a conduction state.
6. The apparatus of claim 1, wherein the apparatus for automatically detecting the airtightness of the freezing door and preventing the low-temperature degradation of the gasket comprises: a connecting rod is rotatably connected between the inner side of the driven rod (19) and the lower end of the movable plate (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110551449.7A CN113294080A (en) | 2021-05-20 | 2021-05-20 | Device for automatically detecting air tightness of freezing door and preventing sealing ring from low-temperature aging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110551449.7A CN113294080A (en) | 2021-05-20 | 2021-05-20 | Device for automatically detecting air tightness of freezing door and preventing sealing ring from low-temperature aging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113294080A true CN113294080A (en) | 2021-08-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110551449.7A Pending CN113294080A (en) | 2021-05-20 | 2021-05-20 | Device for automatically detecting air tightness of freezing door and preventing sealing ring from low-temperature aging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113294080A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115638931A (en) * | 2022-11-04 | 2023-01-24 | 南通昆仑空调有限公司 | Nuclear-grade air valve sealing performance detection device and detection method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1097138A (en) * | 1976-08-03 | 1981-03-10 | Andrew P. Johnson | Gas-fluid-sound isolation door assembly with integral testing means |
| US5581019A (en) * | 1992-07-16 | 1996-12-03 | W. L. Gore & Associates, Inc. | Gasket/insertable member and method for making and using same |
| CN106133414A (en) * | 2014-03-27 | 2016-11-16 | 世利可株式会社 | There is the sealing system of leakage inducing function |
| CN109653647A (en) * | 2019-03-06 | 2019-04-19 | 王本勋 | A kind of armored concrete protection safety sealed door |
| CN212458852U (en) * | 2020-07-07 | 2021-02-02 | 安徽省星年华电器有限公司 | Detection tool for refrigerator door seal |
-
2021
- 2021-05-20 CN CN202110551449.7A patent/CN113294080A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1097138A (en) * | 1976-08-03 | 1981-03-10 | Andrew P. Johnson | Gas-fluid-sound isolation door assembly with integral testing means |
| US5581019A (en) * | 1992-07-16 | 1996-12-03 | W. L. Gore & Associates, Inc. | Gasket/insertable member and method for making and using same |
| CN106133414A (en) * | 2014-03-27 | 2016-11-16 | 世利可株式会社 | There is the sealing system of leakage inducing function |
| CN109653647A (en) * | 2019-03-06 | 2019-04-19 | 王本勋 | A kind of armored concrete protection safety sealed door |
| CN212458852U (en) * | 2020-07-07 | 2021-02-02 | 安徽省星年华电器有限公司 | Detection tool for refrigerator door seal |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115638931A (en) * | 2022-11-04 | 2023-01-24 | 南通昆仑空调有限公司 | Nuclear-grade air valve sealing performance detection device and detection method |
| CN115638931B (en) * | 2022-11-04 | 2023-09-29 | 南通昆仑空调有限公司 | Nuclear grade air valve tightness detection device and detection method |
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Application publication date: 20210824 |