CN210197837U - Air pressure balancing device for low-temperature storage box - Google Patents
Air pressure balancing device for low-temperature storage box Download PDFInfo
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- CN210197837U CN210197837U CN201920875218.XU CN201920875218U CN210197837U CN 210197837 U CN210197837 U CN 210197837U CN 201920875218 U CN201920875218 U CN 201920875218U CN 210197837 U CN210197837 U CN 210197837U
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- pressure balancing
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Abstract
The utility model discloses a pressure balance device for cryopreservation box, including the intervalve, the side both ends of intervalve are provided with overcoat shell and endotheca shell respectively, and the one end outer wall of overcoat shell is provided with the outer support, and the one end outer wall of endotheca shell is provided with the inner support, the bottom outer wall of outer support is provided with the outer spring, and the top outer wall of inner support is provided with the inner spring, and the one end of outer spring and the one end of inner spring are provided with same sliding block, sliding block sliding connection in the side inner wall of intervalve, open the inside of sliding block has central symmetric distribution's exhaust passage and inlet channel, and exhaust passage and inlet channel's perpendicular cross-section is L shape structure. The utility model discloses make things convenient for the balance of inside and outside atmospheric pressure when equidirectional atmospheric pressure is poor, can prevent ponding among the atmospheric pressure balancing unit to can prevent that atmospheric pressure balancing unit from taking place to freeze stifled, prevent that the dust among the outside air from getting into the low temperature and preserving incasement portion and leading to article to receive the pollution.
Description
Technical Field
The utility model relates to a low temperature preservation box equipment technical field especially relates to an atmospheric pressure balancing unit for low temperature preservation box.
Background
With the advancement of technology, refrigeration has no longer remained at the level of-20 ℃ household refrigerators, but rather at lower temperatures: the low temperature of minus 40 ℃ to minus 60 ℃, the ultra-low temperature of minus 86 ℃ and the ultra-low temperature of minus 150 ℃ are used and developed rapidly at home and abroad, but the technical problem that the door of a large-capacity low-temperature storage box is difficult to open due to the over-low refrigeration temperature is generated. The technical reason for the difficulty in opening the door is that the heat enters the refrigerator due to low temperature in the refrigerator, the cold loss occurs when the door is opened, the temperature of the gas in the refrigerator is reduced when the door is closed again, the gas pressure is reduced, the external gas pressure is greater than the gas pressure in the refrigerator according to the principle of expansion with heat and contraction with cold, and a large pressure difference is generated, so that the door body is difficult to open again, and the articles in the refrigerator can not be obtained in a short time.
Through search, the chinese patent with application number CN201420268705.7 discloses an anti-frosting air pressure balancing structure for low temperature equipment, which includes a door located on a refrigeration box. One of the above patents is a pressure balance structure for preventing frosting on a low temperature device, which has the following disadvantages: when the air pressure in the low-temperature preservation box is larger than the external air pressure, the air pressure balance structure cannot balance the air pressure, so that the box door of the low-temperature preservation box is jacked up by the large air pressure in the low-temperature preservation box, and the sealing performance of the low-temperature preservation box is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a pressure balancing device for a low-temperature preservation box.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the air pressure balancing device for the low-temperature storage box comprises a middle pipe, wherein an outer sleeve shell and an inner sleeve shell are arranged at two ends of the side face of the middle pipe respectively, an outer support is arranged on the outer wall of one end of the outer sleeve shell, an inner support is arranged on the outer wall of one end of the inner sleeve shell, an outer spring is arranged on the outer wall of the bottom of the outer support, an inner spring is arranged on the outer wall of the top of the inner support, one end of the outer spring and one end of the inner spring are provided with the same sliding block, and the sliding blocks are connected to the inner.
Furthermore, the inside of sliding block is opened has exhaust passage and the inlet channel of centrosymmetric distribution, and exhaust passage and inlet channel's vertical cross-section is L shape structure.
Furthermore, the top of the outer wall of the side surface of the outer casing is provided with a connecting ring, and a drying mechanism is arranged inside the connecting ring.
Furthermore, the drying mechanism comprises a drying shell arranged on the inner wall of the side face of the connecting ring, first membranes are bonded to the top and the bottom of the inner wall of the side face of the drying shell, and drying agents are filled between the two first membranes.
Furthermore, the top of the outer wall of the side surface of the drying shell is provided with a thread groove, and a dust removal mechanism is arranged above the drying shell.
Further, dust removal mechanism is including setting up in the dirt-proof housing of thread groove side outer wall, and the side inner wall top and the bottom of dirt-proof housing all bond and have the second diaphragm, and it is cotton to have the dust absorption between the second diaphragm.
Furthermore, the outer wall of the side surface of the middle pipe is sleeved with a sealing ring, and the vertical section of the sealing ring is of an I-shaped structure.
The utility model has the advantages that:
1. the sliding block is connected in the middle pipe in a sliding mode through the sliding block, the outer spring and the inner spring, when the inner air pressure and the outer air pressure are the same, the sliding block is blocked in the middle pipe through the elastic force between the outer spring and the inner spring, interaction of the inner air and the outer air is prevented, when the inner air pressure difference and the outer air pressure difference change, the sliding block can be driven to move through the pressure difference to enable the inner air pressure and the outer air pressure to be communicated, then the inner air pressure and the outer air pressure are balanced, and balance of the.
2. Through setting up dry shell, the one end of housing shell sets up dry shell, fills the drier in dry shell, and in the case was preserved to the hot-air entering low temperature of external world, the moisture in the outside air can be adsorbed to the drier, prevents then that the moisture in the hot-air from taking place the condensation phenomenon in atmospheric pressure balancing unit, prevents ponding in the atmospheric pressure balancing unit then to can prevent that atmospheric pressure balancing unit from taking place to freeze stifled.
3. Through setting up the dust cover, pack the dust absorption cotton in the dust cover, when the outside air gets into the cryoconservation incasement portion, the dust absorption cotton can adsorb the dust in the outside air, prevents then that the dust in the outside air from getting into the cryoconservation incasement portion and leading to article to receive the pollution.
Drawings
Fig. 1 is a schematic view showing the entire structure of a pressure equalizing device for a cryopreservation tank of embodiment 1;
fig. 2 is a schematic external configuration view of a pressure equalizing device for a cryopreservation tank of embodiment 1;
fig. 3 is a schematic view of the entire structure of the air pressure equalizing device for the cryopreservation tank of embodiment 2.
In the figure: 1-outer casing, 2-connecting ring, 3-drying casing, 4-drying agent, 5-first diaphragm, 6-outer support, 7-outer spring, 8-sealing ring, 9-air inlet channel, 10-inner casing, 11-inner support, 12-inner spring, 13-sliding block, 14-air outlet channel, 15-middle tube, 16-dustproof casing, 17-second diaphragm and 18-dust-absorbing cotton.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Example 1:
referring to fig. 1-2, an air pressure balancing device for a low-temperature storage box comprises a middle pipe 15, wherein two ends of the side surface of the middle pipe 15 are respectively connected with an outer casing 1 and an inner casing 10 through threads, the outer wall of one end of the outer casing 1 is connected with an outer support 6 through a screw, the outer wall of one end of the inner casing 10 is connected with an inner support 11 through a screw, the outer wall of the bottom of the outer support 6 is welded with an outer spring 7, the outer wall of the top of the inner support 11 is welded with an inner spring 12, one end of the outer spring 7 and one end of the inner spring 12 are welded with the same sliding block 13, and the sliding block 13 is slidably connected.
The utility model discloses in, sliding block 13's inside is opened exhaust passage 14 and inlet channel 9 that have central symmetric distribution, and exhaust passage 14 and inlet channel 9's perpendicular cross-section is L shape structure.
Wherein the top of the outer wall of the side of the outer casing 1 is welded with a connecting ring 2, and the inside of the connecting ring 2 is provided with a drying mechanism.
Wherein, dry mechanism includes through threaded connection in the dry shell 3 of the 2 side inner walls of connecting ring, and the side inner wall top and the bottom of dry shell 3 all have first diaphragm 5 in the bonding, and it has drier 4 to fill between two first diaphragm 5.
Wherein, the side outer wall of the middle pipe 15 is sleeved with a sealing ring 8, and the vertical section of the sealing ring 8 is of an I-shaped structure.
The working principle is as follows: when the low-temperature storage box is installed, one side of the outer casing 1 is installed on the outer side of the low-temperature storage box, one side of the inner casing 10 is installed on the inner side of the low-temperature storage box, when the temperature in the low-temperature storage box is reduced to cause that the internal pressure is lower than the external pressure, the sliding block 13 can be driven to move towards the direction of the inner casing 10, external air enters the low-temperature storage box through the air inlet channel 9, then the internal and external air pressures are balanced, when the temperature in the low-temperature storage box is increased to cause that the internal pressure is higher than the external pressure, the sliding block 13 can be driven to move towards the direction of the outer casing 1, and the internal air is exhausted.
Example 2:
referring to fig. 3, an air pressure balancing device for a cryopreservation box, compared with embodiment 1, in order to prevent that dust in the outside air enters the interior of the cryopreservation box when the air pressure is balanced, and then causes the pollution of the articles stored in the cryopreservation box, a thread groove is opened at the top of the side outer wall of a drying shell 3, and a dust removing mechanism is arranged above the drying shell 3, the dust removing mechanism comprises a dustproof shell 16 connected to the side outer wall of the thread groove through a thread, and a second diaphragm 17 is bonded at the top and the bottom of the side inner wall of the dustproof shell 16, and dust absorption cotton 18 is filled between the second diaphragms 17.
The working principle is as follows: compared with the embodiment 1, when the outside air enters the low-temperature preservation box for air pressure balance, the dust absorption cotton 18 can absorb the dust in the air, and then the dust in the air is prevented from entering the low-temperature preservation box to pollute the stored articles.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (7)
1. The air pressure balancing device for the low-temperature storage box comprises a middle pipe (15) and is characterized in that an outer sleeve shell (1) and an inner sleeve shell (10) are arranged at two ends of the side face of the middle pipe (15) respectively, an outer support (6) is arranged on the outer wall of one end of the outer sleeve shell (1), an inner support (11) is arranged on the outer wall of one end of the inner sleeve shell (10), an outer spring (7) is arranged on the outer wall of the bottom of the outer support (6), an inner spring (12) is arranged on the outer wall of the top of the inner support (11), a same sliding block (13) is arranged at one end of the outer spring (7) and one end of the inner spring (12), and the sliding block (13) is connected to the inner wall of.
2. The air pressure balancing device for the cryopreservation box of claim 1, wherein the sliding block (13) is internally provided with an exhaust channel (14) and an intake channel (9) which are distributed in a central symmetry manner, and the vertical sections of the exhaust channel (14) and the intake channel (9) are both L-shaped structures.
3. The air pressure equalizing device for a cryopreservation box of claim 1, wherein the top of the outer side wall of the outer casing (1) is provided with a connecting ring (2), and the inside of the connecting ring (2) is provided with a drying mechanism.
4. The air pressure balancing device for the cryopreservation box as claimed in claim 3, wherein the drying mechanism comprises a drying shell (3) arranged on the inner side wall of the connecting ring (2), the top and the bottom of the inner side wall of the drying shell (3) are both bonded with first membranes (5), and the drying agent (4) is filled between the two first membranes (5).
5. The air pressure balancing device for the cryopreservation box as claimed in claim 4, wherein the top of the outer wall of the side surface of the drying shell (3) is provided with a threaded groove, and a dust removing mechanism is arranged above the drying shell (3).
6. The air pressure balancing device for the cryopreservation box as claimed in claim 5, wherein the dust removing mechanism comprises a dust-proof shell (16) arranged on the outer wall of the side surface of the threaded groove, second diaphragms (17) are adhered to the top and the bottom of the inner wall of the side surface of the dust-proof shell (16), and dust-absorbing cotton (18) is filled between the second diaphragms (17).
7. The air pressure balancing device for the cryopreservation box of claim 1, wherein the outer wall of the side surface of the intermediate pipe (15) is sleeved with the sealing ring (8), and the vertical section of the sealing ring (8) is of an I-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920875218.XU CN210197837U (en) | 2019-06-12 | 2019-06-12 | Air pressure balancing device for low-temperature storage box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920875218.XU CN210197837U (en) | 2019-06-12 | 2019-06-12 | Air pressure balancing device for low-temperature storage box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210197837U true CN210197837U (en) | 2020-03-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920875218.XU Expired - Fee Related CN210197837U (en) | 2019-06-12 | 2019-06-12 | Air pressure balancing device for low-temperature storage box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210197837U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112722584A (en) * | 2020-12-18 | 2021-04-30 | 唐艳琼 | Give birth to bright packing carton that transports |
-
2019
- 2019-06-12 CN CN201920875218.XU patent/CN210197837U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112722584A (en) * | 2020-12-18 | 2021-04-30 | 唐艳琼 | Give birth to bright packing carton that transports |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200327 Termination date: 20210612 |