CN115487884A - Device for preventing ice from attaching to inner wall of water triple point bottle - Google Patents

Device for preventing ice from attaching to inner wall of water triple point bottle Download PDF

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Publication number
CN115487884A
CN115487884A CN202210808982.1A CN202210808982A CN115487884A CN 115487884 A CN115487884 A CN 115487884A CN 202210808982 A CN202210808982 A CN 202210808982A CN 115487884 A CN115487884 A CN 115487884A
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CN
China
Prior art keywords
wall
groove
triple point
point bottle
ice
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Pending
Application number
CN202210808982.1A
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Chinese (zh)
Inventor
尹跃
陈磊
梁兴忠
任亚南
董锐
王耀
于春萌
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Shandong Institute of Metrology
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Shandong Institute of Metrology
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Publication date
Application filed by Shandong Institute of Metrology filed Critical Shandong Institute of Metrology
Priority to CN202210808982.1A priority Critical patent/CN115487884A/en
Publication of CN115487884A publication Critical patent/CN115487884A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L7/00—Heating or cooling apparatus; Heat insulating devices
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/02—Details
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/02—Details
    • H05B3/06—Heater elements structurally combined with coupling elements or holders

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  • Health & Medical Sciences (AREA)
  • Clinical Laboratory Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Devices For Opening Bottles Or Cans (AREA)

Abstract

The invention discloses a device for preventing ice from adhering to the inner wall of a water triple point bottle, which comprises an ice adhesion preventing device, wherein a tank body is arranged on the ice adhesion preventing device, a support foot is arranged at the bottom of the tank body, a miniature clamping oil cylinder is arranged in the center of the side wall of the tank body, a heating cover mechanism is arranged on a push shaft of the miniature clamping oil cylinder, a heating resistor is arranged on the inner wall of the heating cover mechanism, a heat equalizing groove is arranged in the center of the interior of the tank body, a fixing support is arranged at the bottom of the heat equalizing groove, a heat equalizing groove fixing support is arranged on the outer wall above the heat equalizing groove, a port is arranged at the top end of the tank body, an annular support is arranged above the port, a driven gear is arranged on the outer wall of the lower half part of the annular support, a driving gear is arranged on one side of the driven gear, a fixing ring is arranged above the annular support, a screw head is arranged in the fixing ring, a rubber pad is arranged on the inner wall of an arc clamp at the end of the screw head, and the ice adhesion preventing device effectively separates ice from the inner wall of the triple point bottle by rotating the triple point bottle and supplying heat to the outer wall of the triple point bottle.

Description

Device for preventing ice from attaching to inner wall of water triple point bottle
Technical Field
The invention relates to the technical field of triple point bottles, in particular to a device for preventing ice from being attached to the inner wall of a water triple point bottle.
Background
The water triple point is the temperature at which the solid, liquid and vapor phases of water coexist in equilibrium (the value is 273.16K (0.01 ℃), and it is reproduced in a sealed glass container-water triple point bottle containing high-purity water (the isotope component of water is equivalent to seawater).
The water three-phase point bottle is a fixed point device for the zero position of a standard platinum resistance thermometer and a standard mercury thermometer of a calibration base of each stage of metrological calibration mechanism. Therefore, correct reproduction, accurate measurement of the water triple point is critical to the implementation of the 1990 International temperature Standard (ITS-90).
The water three-phase point bottle is mainly used for measuring the resistance value Rtp of the platinum resistance thermometer at the water three-phase point and the zero position of a standard mercury thermometer.
The freezing method of the water three-phase point bottle comprises three methods of ice-salt mixture refrigeration, dry ice refrigeration, liquid nitrogen refrigeration and the like.
The thermodynamic temperature is such that the triple point temperature of water is 273.16k, and every 1k is 1/273.16 of the triple point temperature of water, and the thermodynamic temperature value given according to this specification is called the kelvin (kelvin) temperature scale.
The normal state in the water triple point bottle is ice, water and vacuum, ice is attached to the pipe wall in the water triple point bottle at the beginning, and normal-temperature water needs to be added into the pipe in the water triple point bottle to prevent the ice from being attached to the pipe wall.
Disclosure of Invention
The present invention is directed to a device for preventing ice from adhering to the inner wall of a water triple point bottle, which solves the above problems of the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: a device for preventing ice from adhering to the inner wall of a water triple point bottle comprises an ice adhesion preventing device, wherein a tank body is arranged on the ice adhesion preventing device, a support foot is arranged on the outer wall of the tank body, which is close to the bottom, and is welded with the outer wall of the tank body, miniature clamping oil cylinders are symmetrically arranged in the center of the side wall of the tank body, the pushing shafts of the miniature clamping oil cylinders are mounted in the tank body in the axial direction, a heating cover body mechanism is arranged on the pushing shafts of the miniature clamping oil cylinders, and the pushing shafts of the miniature clamping oil cylinders are welded with the outer wall of the heating cover body mechanism;
the inner center of the tank body is provided with a soaking groove, the heating cover body mechanisms are symmetrically arranged on two sides of the soaking groove, the bottom of the soaking groove is provided with a support frame, the bottom end of the support frame is welded with the bottom of the tank body, the bottom end of the soaking groove is matched with the support frame for installation, the outer side of the soaking groove close to the top end is provided with a soaking groove fixing support, the soaking groove is arranged in the inner center of the soaking groove fixing support, and the end of the soaking groove fixing support is welded with the inner wall of the tank body;
the top central authorities of the jar body are equipped with the port, and port and jar body structure as an organic whole, port and jar body intercommunication, the top of port is equipped with driven gear, retainer plate, driven gear and retainer plate structure as an organic whole, the top of the jar body is close to one side and is equipped with driving motor, and driving motor and the top fixed connection of the jar body, be equipped with drive gear in driving motor's the pivot, drive gear and the mutual interlock of driven gear.
Preferably, the heating cover body mechanism is a semicircular arc cover, heating resistors are uniformly arranged on the side wall of the heating cover body mechanism at equal intervals, and the heating resistors are installed in a matched mode with the heating cover body mechanism.
Preferably, the soaking groove is a cylindrical soaking groove, the bottom end of the soaking groove is provided with a limiting groove, the limiting groove is cylindrical, and the bottom end of the limiting groove is provided with a rolling ball.
Preferably, an external handle is arranged above the outer wall of the tank body, and the external handle is connected with the outer wall of the tank body in a welding mode.
Preferably, the center of the bottom of the driven gear is provided with a threaded joint, the diameter of the threaded joint is the same as the diameter of the inside of the port, the outer wall of the top end of the threaded joint is provided with an anti-falling ring, the anti-falling ring and the threaded joint are of an integral structure, and the anti-falling ring at the top end of the threaded joint is movably connected with a joint groove in the driven gear.
Preferably, the inner wall of the port is provided with threads, and the inlet at the top end of the port is funnel-shaped.
Preferably, be equipped with the ring carrier on the retainer plate, the inside equiangular symmetry of ring carrier is equipped with the thread groove, and the thread groove runs through the ring carrier, be equipped with the thread head in the inside thread groove of ring carrier, thread head and thread groove cooperation installation, the thread head sets up and is equipped with the cross recess in the end outside the ring carrier inside, and the thread head sets up and is equipped with the arc clamp on the inside end of ring carrier, adopts linking ring activity to link up between the outer wall central authorities of arc clamp and the end of thread head, be equipped with the arc support on the arc clamp, the inner wall of arc support is equipped with the rubber pad, and the rubber pad is pasted fixedly with the inner wall of arc support.
Preferably, the rotation angle of the driven gear in the horizontal direction ranges from 0 to 360 °.
Preferably, the use method of the device for preventing ice from adhering to the inner wall of the water triple point bottle comprises the following steps:
step one, mounting a water triple point bottle into the interior of a soaking tank, and placing the bottom end of the water triple point bottle into a limiting groove at the bottom end of the soaking tank;
adjusting a thread head inside the fixing ring by adopting a screwdriver, so that an arc-shaped clamp at the end of the thread head clamps the water triple-point bottle;
thirdly, heating after electrifying a heating resistor in the heating cover body mechanism, then pushing the heating cover body mechanism to the soaking groove by the micro clamping oil cylinder, and taking back the heating cover body mechanism by the micro clamping oil cylinder immediately after the soaking groove is arranged in the center of the heating cover body mechanism for 3-5 s;
and step four, driving the driven gear to rotate by the driving motor, and driving the water triple point bottle to rapidly rotate in a reciprocating manner by the fixing ring until ice in the water triple point bottle is separated from the inner wall of the water triple point bottle.
Compared with the prior art, the invention has the beneficial effects that:
(1) The push shaft of the micro clamping oil cylinder is welded with the outer wall of the heating cover body mechanism, the micro clamping oil cylinder drives the heating cover body mechanism to be combined or separated, the micro clamping oil cylinder can be immediately separated from the water three-phase point bottle while being heated, and excessive heating of the water three-phase point bottle can be avoided;
(2) The heating cover body mechanism is a semicircular arc cover, heating resistors are uniformly arranged on the side wall of the heating cover body mechanism at equal intervals, the heating resistors are installed in a matched mode with the heating cover body mechanism, and the heating resistors are heated after being electrified to enable the heating cover body mechanism to generate heat integrally;
(3) The center in the tank body is provided with a soaking groove, the soaking groove is cylindrical, the bottom end of the soaking groove is provided with a limiting groove, the limiting groove is cylindrical, the bottom end of the limiting groove is provided with a rolling ball, and the friction resistance between the water triple-point bottle and the bottom of the soaking groove is reduced through the rolling ball, so that the water triple-point bottle is driven easily;
(4) A rotating shaft of the driving motor is provided with a driving gear, the driving gear is meshed with the driven gear, and the driving motor drives the water triple point bottle to rotate in a reciprocating manner in the soaking groove, so that ice in the water triple point bottle can be separated from the inner wall of the water triple point bottle under the action of inertia;
(5) This avoid ice adhesion apparatus supplies heat through rotating triple point bottle and to the outer wall of triple point bottle, effectively makes ice and triple point bottle inner wall separation, and the active time is short, and is effectual.
Drawings
FIG. 1 is a schematic view of an ice adhesion preventing device according to the present invention;
FIG. 2 is a cross-sectional view of the interior of the can body of the present invention;
FIG. 3 is a schematic view of the retainer ring of the present invention;
FIG. 4 is a schematic view of the combination of the fixed ring and the driven gear of the present invention.
In the figure: 1. an ice adhesion preventing means; 2. a tank body; 3. a micro clamping cylinder; 4. a support leg; 5. an outer handle; 6. a port; 7. a warming cover body mechanism; 8. a soaking tank; 9. a limiting groove; 10. a soaking tank fixing bracket; 11. a drive motor; 12. a drive gear; 13. a stationary ring; 14. a driven gear; 15. an annular support; 16. a screw head; 17. an arc-shaped clamp; 18. an arc-shaped bracket; 19. a rubber pad; 20. a support frame.
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 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, the present invention provides a technical solution: the utility model provides an avoid ice to adhere to device at water triple point bottle inner wall, is equipped with jar body 2 including avoiding ice adhesive device 1 on avoiding ice adhesive device 1, and jar body 2 outer wall top is equipped with outside handle 5, outside handle 5 and jar body 2's outer wall welded connection.
The outer wall of the jar body 2 is close to the bottom and is equipped with support foot 4, support foot 4 and the outer wall welded connection of the jar body 2, the lateral wall central symmetry of the jar body 2 is equipped with miniature centre gripping hydro-cylinder 3, the interior installation of the axial jar body of pushing away of miniature centre gripping hydro-cylinder 3, miniature centre gripping hydro-cylinder 3 push away epaxial being equipped with cover body mechanism 7 that heats, miniature centre gripping hydro-cylinder 3 push away the axle with cover body mechanism 7's outer wall welded connection that heats, the combination that heats cover body mechanism 7 through miniature centre gripping hydro-cylinder 3 drive perhaps parts, can separate with water triple point bottle immediately in the time after the previous heating, can avoid the too much heating to water triple point bottle again.
The heating cover body mechanism 7 is a semicircular arc cover, heating resistors are evenly arranged on the side wall of the heating cover body mechanism 7 at equal intervals, the heating resistors are installed in a matched mode with the heating cover body mechanism 7, and the heating resistors are heated after being electrified, so that the heating cover body mechanism 7 generates heat integrally.
Jar body 2's inside central authorities are equipped with soaking groove 8, and soaking groove 8 is cylindric soaking groove, and the bottom end of soaking groove 8 is equipped with spacing groove 9, and spacing groove 9 is cylindric, and spacing groove 9's bottom is equipped with the spin, reduces the frictional resistance of water triple point bottle and soaking groove 8 bottom through the spin, makes the drive of water triple point bottle by light.
7 symmetries of heating cover body mechanism set up in the both sides of soaking groove 8, and the bottom of soaking groove 8 is equipped with support frame 20, the bottom end of support frame 20 and the bottom welded connection of the jar body 2, and the bottom and the support frame 20 cooperation installation of soaking groove 8, the outside that soaking groove 8 is close to the top is equipped with soaking groove fixed bolster 10, and soaking groove 8 sets up in the inside central authorities of soaking groove fixed bolster 10, and the end of soaking groove fixed bolster 10 and the inner wall welded connection of the jar body 2.
The top central authorities of the jar body 2 are equipped with port 6, the inner wall of port 6 is equipped with the screw thread, the top entry department of port 6 is for leaking hopper-shaped, port 6 and jar body 2 structure as an organic whole, port 6 and jar body 2 intercommunication, the top of port 6 is equipped with driven gear 14, retainer plate 13, be equipped with ring carrier 15 on the retainer plate 13, the inside equiangular symmetry of ring carrier 15 is equipped with the thread groove, the thread groove runs through ring carrier 15, be equipped with screw head 16 in the inside thread groove of ring carrier 15, screw head 16 and thread groove cooperation installation, screw head 16 sets up the inside cross recess that is equipped with in the end outside ring carrier 15, screw head 16 sets up and is equipped with arc clamp 17 on the inside end of ring carrier 15, adopt linking ring activity to link up between the outer wall central authorities of arc clamp 17 and the end of screw head 16, be equipped with arc clamp 18 on the arc clamp 17, the inner wall of arc support 18 is equipped with rubber pad 19, rubber pad 19 is pasted fixedly with the inner wall of arc support 18.
The center of the bottom of the driven gear 14 is provided with a thread joint 21, the diameter of the thread joint 21 is the same as the inside diameter of the port 6, the outer wall of the top end of the thread joint 21 is provided with an anti-falling ring, the anti-falling ring and the thread joint 21 are of an integrated structure, and the anti-falling ring at the top end of the thread joint 21 is movably connected with a connecting groove inside the driven gear 14.
The range of the rotation angle of the driven gear 14 in the horizontal direction is 0-360 degrees, the driven gear 14 and the fixing ring 13 are of an integrated structure, the driving motor 11 is arranged on one side, close to the top of the tank body 2, of the top of the driving motor 11 and the top of the tank body 2 are fixedly connected, the driving gear 12 is arranged on the rotating shaft of the driving motor 11, the driving gear 12 is meshed with the driven gear 14, the driving motor 11 drives the water triple point bottle to rotate in a reciprocating mode inside the soaking groove 8, and therefore the ice of the water triple point bottle can be separated from the inner wall of the water triple point bottle under the action of inertia.
The use method of the device for preventing ice from adhering to the inner wall of the water triple-point bottle comprises the following steps: the water three-phase point bottle is arranged in the heat equalizing groove 8, the bottom end of the water three-phase point bottle is arranged in the limiting groove 9 at the bottom end of the heat equalizing groove 8, the screw head 16 in the fixing ring is adjusted by the screwdriver, and the arc clamp 17 at the end of the screw head 16 clamps the water three-phase point bottle.
After the heating resistor in the heating cover body mechanism 7 is electrified and then heated, the micro clamping oil cylinder 3 pushes the heating cover body mechanism 7 to the heat equalizing groove 8, so that the heat equalizing groove 8 is arranged in the center of the heating cover body mechanism 7 for 3-5s, and then the micro clamping oil cylinder 3 immediately retracts the heating cover body mechanism 7.
The driving motor 11 drives the driven gear 14 to rotate, and the fixed ring drives the water triple point bottle to rapidly rotate in a reciprocating mode until ice in the water triple point bottle is separated from the inner wall of the water triple point bottle.
This avoid ice adhesion apparatus is through rotating triple point bottle and carrying out the heat supply to the outer wall of triple point bottle, effectively makes ice and triple point bottle inner wall separation, and the action time is short, and is effectual.
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 (9)

1. A device for avoiding ice from adhering to the inner wall of a water triple point bottle, comprising an ice adhesion avoiding device (1), characterized in that: the ice adhesion preventing device (1) is provided with a tank body (2), a support foot (4) is arranged on the outer wall of the tank body (2) close to the bottom, the support foot (4) is welded with the outer wall of the tank body (2), the center of the side wall of the tank body (2) is symmetrically provided with a micro clamping oil cylinder (3), the pushing shaft of the micro clamping oil cylinder (3) is arranged towards the inside of the tank body, the pushing shaft of the micro clamping oil cylinder (3) is provided with a heating cover body mechanism (7), and the pushing shaft of the micro clamping oil cylinder (3) is welded with the outer wall of the heating cover body mechanism (7);
the inner center of the tank body (2) is provided with a soaking groove (8), the heating cover body mechanism (7) is symmetrically arranged on two sides of the soaking groove (8), the bottom of the soaking groove (8) is provided with a support frame (20), the bottom end of the support frame (20) is in welded connection with the bottom of the tank body (2), the bottom end of the soaking groove (8) is matched and mounted with the support frame (20), the outer side, close to the top end, of the soaking groove (8) is provided with a soaking groove fixing support (10), the soaking groove (8) is arranged in the inner center of the soaking groove fixing support (10), and the end of the soaking groove fixing support (10) is in welded connection with the inner wall of the tank body (2);
the top central authorities of the jar body (2) are equipped with port (6), port (6) and jar body (2) structure as an organic whole, port (6) and jar body (2) intercommunication, the top of port (6) is equipped with driven gear (14), retainer plate (13), driven gear (14) and retainer plate (13) structure as an organic whole, the top of the jar body (2) is close to one side and is equipped with driving motor (11), the top fixed connection of driving motor (11) and jar body (2), be equipped with drive gear (12) in the pivot of driving motor (11), drive gear (12) and driven gear (14) interlock each other.
2. The apparatus for preventing ice from adhering to the inner wall of a water triple point bottle as claimed in claim 1, wherein: the heating cover body mechanism (7) is a semicircular arc cover, heating resistors are evenly arranged on the side wall of the heating cover body mechanism (7) at equal intervals, and the heating resistors are installed in a matched mode with the heating cover body mechanism (7).
3. The apparatus as claimed in claim 1, wherein the apparatus for preventing ice from adhering to the inner wall of the water triple point bottle comprises: the soaking groove (8) is a cylindrical soaking groove, the bottom end of the soaking groove (8) is provided with a limiting groove (9), the limiting groove (9) is cylindrical, and the bottom end of the limiting groove (9) is provided with a rolling ball.
4. The apparatus for preventing ice from adhering to the inner wall of a water triple point bottle as claimed in claim 1, wherein: the outer wall top of the tank body (2) is provided with an external handle (5), and the external handle (5) is connected with the outer wall of the tank body (2) in a welding manner.
5. The apparatus for preventing ice from adhering to the inner wall of a water triple point bottle as claimed in claim 1, wherein: the bottom central authorities of driven gear (14) are equipped with thread joint head (21), and the diameter of thread joint head (21) is the same with the inside diameter of port (6), the top outer wall of thread joint head (21) is equipped with the anticreep circle, anticreep circle and thread joint head (21) structure as an organic whole, and the anticreep circle on thread joint head (21) top links up with driven gear (14) inside linking groove activity.
6. The apparatus as claimed in claim 1, wherein the apparatus for preventing ice from adhering to the inner wall of the water triple point bottle comprises: the inner wall of the port (6) is provided with threads, and the inlet at the top end of the port (6) is funnel-shaped.
7. The apparatus as claimed in claim 1, wherein the apparatus for preventing ice from adhering to the inner wall of the water triple point bottle comprises: be equipped with ring carrier (15) on retainer plate (13), the inside equiangular symmetry of ring carrier (15) is equipped with the thread groove, and the thread groove runs through ring carrier (15), be equipped with thread head (16) in the inside thread groove of ring carrier (15), thread head (16) and thread groove cooperation installation, thread head (16) set up and are equipped with the cross recess in the end outside ring carrier (15) inside, and thread head (16) set up and are equipped with arc clamp (17) on the end inside ring carrier (15), adopt linking ring activity to link up between the outer wall central authorities of arc clamp (17) and the end of thread head (16), be equipped with arc carrier (18) on arc clamp (17), the inner wall of arc carrier (18) is equipped with rubber pad (19), and rubber pad (19) are pasted fixedly with the inner wall of arc carrier (18).
8. The apparatus for preventing ice from adhering to the inner wall of a water triple point bottle as claimed in claim 1, wherein: the rotation angle range of the driven gear (14) in the horizontal direction is 0-360 degrees.
9. The use method of the device for avoiding ice from adhering to the inner wall of the water triple-point bottle, which is disclosed by the claim 1, comprises the following steps:
step one, mounting a water three-phase point bottle into a heat equalizing groove (8), and placing the bottom end of the water three-phase point bottle into a limiting groove (9) at the bottom end of the heat equalizing groove (8);
step two, a screw driver is adopted to adjust a screw head (16) in the fixing ring, so that an arc-shaped clamp (17) at the end of the screw head (16) clamps the water triple point bottle;
thirdly, heating after electrifying a heating resistor in the heating cover body mechanism (7), then pushing the heating cover body mechanism (7) to the soaking groove (8) by the micro clamping oil cylinder (3), and immediately withdrawing the heating cover body mechanism (7) by the micro clamping oil cylinder (3) after the soaking groove (8) is arranged in the center of the heating cover body mechanism (7) for 3-5 s;
and fourthly, the driving motor (11) drives the driven gear (14) to rotate, and the fixing ring drives the water triple point bottle to rapidly rotate in a reciprocating mode until ice in the water triple point bottle is separated from the inner wall of the water triple point bottle.
CN202210808982.1A 2022-07-11 2022-07-11 Device for preventing ice from attaching to inner wall of water triple point bottle Pending CN115487884A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210808982.1A CN115487884A (en) 2022-07-11 2022-07-11 Device for preventing ice from attaching to inner wall of water triple point bottle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210808982.1A CN115487884A (en) 2022-07-11 2022-07-11 Device for preventing ice from attaching to inner wall of water triple point bottle

Publications (1)

Publication Number Publication Date
CN115487884A true CN115487884A (en) 2022-12-20

Family

ID=84465874

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210808982.1A Pending CN115487884A (en) 2022-07-11 2022-07-11 Device for preventing ice from attaching to inner wall of water triple point bottle

Country Status (1)

Country Link
CN (1) CN115487884A (en)

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