CN111846545A - Cooling protection device of anti-freezing solution for hydraulic support - Google Patents
Cooling protection device of anti-freezing solution for hydraulic support Download PDFInfo
- Publication number
- CN111846545A CN111846545A CN202010726100.8A CN202010726100A CN111846545A CN 111846545 A CN111846545 A CN 111846545A CN 202010726100 A CN202010726100 A CN 202010726100A CN 111846545 A CN111846545 A CN 111846545A
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- Prior art keywords
- hydraulic support
- protection device
- box body
- fixedly connected
- sides
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
- B65D25/02—Internal fittings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
- B65D25/02—Internal fittings
- B65D25/04—Partitions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
- B65D25/02—Internal fittings
- B65D25/10—Devices to locate articles in containers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D43/00—Lids or covers for rigid or semi-rigid containers
- B65D43/14—Non-removable lids or covers
- B65D43/22—Devices for holding in closed position, e.g. clips
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/02—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage
- B65D81/05—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents
- B65D81/07—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents using resilient suspension means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Abstract
The invention discloses a cooling protection device for an anti-freezing solution for a hydraulic support, which relates to the technical field of anti-freezing solution protection and aims at solving the problems that the existing anti-freezing solution is difficult to dissipate heat during storage and is unstable to cause leakage during transportation and the cover of a packaged box body is not tight. The device is simple in design, convenient to operate and beneficial to heat dissipation of the anti-freezing solution, the arrangement of the plurality of springs, the moving plate and the transmission rope enables the device to be stable in the transportation process, and the double-sealing arrangement is beneficial to preservation of the anti-freezing solution.
Description
Technical Field
The invention relates to the technical field of antifreeze liquid protection, in particular to a cooling protection device for an antifreeze liquid for a hydraulic support.
Background
The antifreezing fluid is a cooling fluid containing a special additive, is mainly used for a liquid-cooled engine cooling system, has excellent performances of antifreezing in winter, anti-boiling in summer, scale prevention all the year round, corrosion prevention and the like, has various antifreezing agents, such as calcium chloride in inorganic matters, methanol, ethanol (common name of alcohol), ethylene glycol, common name of sweet alcohol), glycerol (common name of glycerol), lubricating oil, granulated sugar, honey and the like which are common in daily life, can be used as mother liquor of the antifreezing fluid, and can become the antifreezing fluid in general meaning after a proper amount of pure soft water (water containing no or a small amount of calcium and magnesium ions, such as distilled water, uncontaminated rainwater, snow water and the like, and the total hardness component concentration of the water quality is 0-30 ppm).
The anti-freezing solution on the existing market is various in types, and most of the anti-freezing solution cooling protection devices are complex in structure, difficult to operate, difficult to dissipate heat and unstable in the transportation process, so that the liquid is shaken too strongly.
Disclosure of Invention
The invention provides a cooling protection device for an antifreeze solution for a hydraulic support, which solves the problems that the existing antifreeze solution is difficult to dissipate heat during storage and is unstable in the transportation process to cause leakage, and the packed box body is not tight in cover and difficult to operate.
In order to achieve the purpose, the invention adopts the following technical scheme:
a cooling protection device of anti-freezing solution for a hydraulic support comprises a first box body, wherein two transversely arranged trapezoidal grooves are formed in the inner wall of the bottom of the first box body, trapezoidal blocks are connected to the insides of the two trapezoidal grooves in a sliding mode, a moving plate is welded to the top of each trapezoidal block, a plurality of heat conducting blocks are fixedly connected to one side, close to each other, of the two moving plates, square through holes are formed in the side faces of the moving plates, two rotating shafts are connected to the inner wall of each square through hole in a rotating mode, second pulleys are fixedly sleeved on the outer portions of the rotating shafts, a first groove is formed in the inner wall of the bottom of the first box body, a third spring is movably sleeved in the first groove, transmission ropes are fixedly connected to the two ends of the third spring, the transmission ropes are rotatably connected to the outer portions of the four second pulleys, and two first pulleys are rotatably, the front of first pulley runs through the movable sleeve and is equipped with the fixed axle, the outside fixedly connected with fixed block, two of fixed axle the top fixedly connected with second box, two of fixed block one side two second springs of fixed connection, two that the movable plate kept away from each other the second spring is close to one side welding of first box both sides inner wall and has the buffer board, is located the left side the second recess has been seted up at the top of movable plate, the first spring of bottom fixedly connected with of second recess, the top fixedly connected with dead lever of first spring, the top of dead lever articulates there is the clamp plate, the top of first box articulates there is the case lid, the top of clamp plate and the bottom of case lid articulate there is the telescopic link.
Preferably, a plurality of circular through holes are formed in two sides of the first box body, and heat dissipation fans are mounted inside the circular through holes.
Preferably, the right side fixedly connected with couple of case lid, the right side outer wall of first box rotates and is connected with the buckle, and couple and buckle phase-match.
Preferably, the vertical section of the moving plate is of a U-shaped structure, and the cross section of the heat conduction block is of a trapezoidal structure.
Preferably, the inner walls of the two sides of the second box body are hinged with partition plates, and the two partition plates are matched.
Preferably, the two second springs are located on two sides of the square through hole, and the plurality of heat conduction blocks are distributed on two sides of the square through hole.
Preferably, the first groove is located between the two trapezoidal grooves, and the second pulley extends into the first groove.
1. The double-seal box is characterized in that the box cover is provided with a first spring and a second spring, the first spring is arranged between the first spring and the second spring, the second spring is arranged between the first spring and the second spring, and the second spring is arranged between the first spring and the second spring.
2. According to the invention, by installing the structures such as the moving plate, the heat conducting block, the first pulley, the second pulley movable rope, the third spring, the second box body, the second spring, the buffer plate, the heat radiating fan and the like, after bottled anti-freezing solution is put into the second box body, the second box body falls down, so that the transmission rope is pressed downwards, the third spring is pulled, the heat conducting block on the moving plate extrudes the second box body, and the fixing effect is achieved, wherein the second spring plays a buffering role, and the heat radiating fan discharges heat in the first box body.
To sum up, the device structural design is simple, the operation of being convenient for, and the setting of driving rope and movable plate is favorable to fixed second box to make the antifreeze in the box remain stable, and avoided liquid too to rock and spill over, the telescopic link makes the clamp plate move along with the case lid, and then the double sealing second box, thereby effectual save liquid.
Drawings
FIG. 1 is a schematic front view of a cooling protection device for an antifreeze solution for a hydraulic support according to the present invention;
FIG. 2 is a schematic sectional view of a damping mechanism of the antifreeze cooling protection device for a hydraulic bracket according to the present invention;
FIG. 3 is a schematic side view of a movable plate of the cooling protection device for antifreeze solution for a hydraulic support according to the present invention;
FIG. 4 is a schematic side view of a first casing of the antifreeze cooling protection device for a hydraulic support according to the present invention;
fig. 5 is a schematic sectional structural view of a moving plate top spring device of the cooling protection device for the antifreeze solution for the hydraulic bracket according to the present invention.
In the figure: the heat dissipation fan comprises a box cover 1, hooks 2, telescopic rods 3, a pressing plate 4, a fixing rod 5, a first spring 6, a buckle 7, a second box 8, a heat conduction block 9, a partition plate 10, a first box 11, a transmission rope 12, a movable plate 13, a fixed block 14, a fixed shaft 15, a first pulley 16, a buffer plate 17, a second spring 18, a second pulley 19, a rotating shaft 20, a trapezoid block 21, a first groove 22, a trapezoid groove 23, a third spring 24 and a heat dissipation fan 25.
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.
Referring to fig. 1-5, a cooling protection device for an antifreeze solution for a hydraulic bracket comprises a first box body 11, two trapezoidal grooves 23 transversely arranged are formed on the inner wall of the bottom of the first box body 11, trapezoidal blocks 21 are slidably connected inside the two trapezoidal grooves 23, a moving plate 13 is welded on the top of each trapezoidal block 21, a plurality of heat conducting blocks 9 are fixedly connected to one side of the two moving plates 13 close to each other, a square through hole is formed in the side surface of each moving plate 13, two rotating shafts 20 are rotatably connected to the inner wall of each square through hole, second pulleys 19 are fixedly sleeved outside the rotating shafts 20, a first groove 22 is formed in the inner wall of the bottom of the first box body 11, a third spring 24 is movably sleeved inside the first groove 22, transmission ropes 12 are fixedly connected to the two ends of the third spring 24, the transmission ropes 12 are rotatably connected to the outsides of the four second pulleys 19, and two first pulleys 16 are rotatably connected to the transmission, the front of first pulley 16 runs through movable sleeve and is equipped with fixed axle 15, the outside fixedly connected with fixed axle 15 fixed block 14, the top fixedly connected with second box 8 of two fixed blocks 14, two second springs 18 of one side fixedly connected with that two movable plates 13 kept away from each other, one side welding that two second springs 18 are close to first box 11 both sides inner wall has buffer board 17, the second recess has been seted up at the top that is located left side movable plate 13, the first spring 6 of bottom fixedly connected with of second recess, the top fixedly connected with dead lever 5 of first spring 6, the top of dead lever 5 articulates there is clamp plate 4, the top of first box 11 articulates there is case lid 1, the top of clamp plate 4 and the bottom of case lid 1 articulate there is telescopic link 3.
In this embodiment, a plurality of circular through holes are formed at both sides of the first casing 11, and the heat dissipation fan 25 is installed inside the circular through holes.
In this embodiment, the right side fixedly connected with couple 2 of case lid 1, the right side outer wall of first box 11 rotates and is connected with buckle 7, and couple 2 and buckle 7 phase-match.
In this embodiment, the vertical section of the moving plate 13 is a U-shaped structure, and the cross section of the heat-conducting block 9 is a trapezoidal structure.
In this embodiment, the inner walls of the two sides of the second box 8 are hinged with partition boards 10, and the two partition boards 10 are identical.
In this embodiment, the two second springs 18 are located at two sides of the square through hole, and the plurality of heat conduction blocks 9 are distributed at two sides of the square through hole.
In this embodiment, the first groove 22 is located between the two trapezoidal grooves 23, and the second pulley 19 extends into the first groove 22.
Firstly, putting the bottled antifreeze into a second box body 8, putting a partition plate 10 down, putting the second box body 8 into four bottles of antifreeze, moving the second box body 8 downwards after putting, further pressing a transmission rope 12 through a first pulley 16, pulling the transmission rope 12 downwards to enable two moving plates 13 to approach each other, enabling a plurality of heat-conducting blocks 9 to extrude the second box body 8, wherein trapezoidal blocks 21 below the moving plates 13 move close to each other when the moving plates 13 are pulled, wherein a third spring 24 arranged in the middle of the transmission rope 12 is pulled towards two sides by the transmission rope 12 when the moving plates 13 move, after the second box body 8 is fixed, when the transportation amplitude is large, the second spring 18 and a buffer plate 17 move leftwards and rightwards to play a buffer role, after the antifreeze is placed, covering a box cover 1, and further extruding a pressure plate 4 through a telescopic rod 3, the articulated dead lever 5 in left side of clamp plate 4 compresses first spring 6, at last through couple 2 and buckle 7 locking case lid 1, in the transportation, second spring 18 plays the effect of buffering, this device structural design is simple, the operation of being convenient for, be favorable to the heat dissipation of antifreeze, the setting of clamp plate, make the second box obtain dual fixed, the movable plate extrudees the second box, make under buffer gear's effect, let antifreeze remain stable, it spills over to have reduced because of jolting too big antifreeze that leads to, effectual save antifreeze.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. The cooling protection device for the anti-freezing solution for the hydraulic support comprises a first box body (11) and is characterized in that two transversely-arranged trapezoidal grooves (23) are formed in the inner wall of the bottom of the first box body (11), trapezoidal blocks (21) are connected to the two trapezoidal grooves (23) in a sliding mode, a moving plate (13) is welded to the top of each trapezoidal block (21), a plurality of heat conducting blocks (9) are fixedly connected to one side, close to each other, of the two moving plates (13), a square through hole is formed in the side face of each moving plate (13), two rotating shafts (20) are rotatably connected to the inner wall of each square through hole, a second pulley (19) is fixedly sleeved on the outer portion of each rotating shaft (20), a first groove (22) is formed in the inner wall of the bottom of the first box body (11), and a third spring (24) is movably sleeved in the first groove (, the two ends of the third spring (24) are fixedly connected with transmission ropes (12), the transmission ropes (12) are rotatably connected to the outer portions of the four second pulleys (19), the transmission ropes (12) between the two movable plates (13) are rotatably connected with the two first pulleys (16), the front surface of each first pulley (16) is movably sleeved with a fixed shaft (15) in a penetrating mode, the outer portions of the fixed shafts (15) are fixedly connected with fixed blocks (14), the tops of the two fixed blocks (14) are fixedly connected with a second box body (8), one sides of the two movable plates (13) far away from each other are fixedly connected with two second springs (18), one sides of the two second springs (18) close to the inner walls of the two sides of the first box body (11) are welded with buffer plates (17), the tops of the two movable plates (13) are located on the left side, second grooves are formed in the tops of the two movable plates (13), and the bottoms of, the top fixedly connected with dead lever (5) of first spring (6), the top of dead lever (5) articulates there is clamp plate (4), the top of first box (11) articulates there is case lid (1), the top of clamp plate (4) and the bottom of case lid (1) articulate there is telescopic link (3).
2. The cooling protection device of the antifreeze solution for the hydraulic support according to claim 1, wherein a plurality of circular through holes are formed at both sides of the first tank (11), and a heat dissipation fan (25) is installed inside the circular through holes.
3. The cooling protection device of the antifreeze solution for the hydraulic support according to claim 1, wherein a hook (2) is fixedly connected to the right side of the tank cover (1), a buckle (7) is rotatably connected to the outer wall of the right side of the first tank body (11), and the hook (2) is matched with the buckle (7).
4. The cooling protection device of antifreeze solution for hydraulic support according to claim 1, characterized in that the vertical section of said moving plate (13) is U-shaped structure, and the cross section of said heat-conducting block (9) is trapezoid structure.
5. The device for cooling and protecting the antifreeze solution for the hydraulic support according to claim 1, wherein the inner walls of the two sides of the second box body (8) are hinged with partition plates (10), and the two partition plates (10) are matched.
6. The cooling protection device of antifreeze solution for hydraulic support according to claim 1, characterized in that said two second springs (18) are located on both sides of the square through hole, and said plurality of heat conduction blocks (9) are distributed on both sides of the square through hole.
7. The cooling protection device for antifreeze solution for hydraulic support according to claim 1, characterized in that said first groove (22) is located in the middle of two trapezoidal grooves (23), said second pulley (19) extending into the first groove (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010726100.8A CN111846545A (en) | 2020-07-25 | 2020-07-25 | Cooling protection device of anti-freezing solution for hydraulic support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010726100.8A CN111846545A (en) | 2020-07-25 | 2020-07-25 | Cooling protection device of anti-freezing solution for hydraulic support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111846545A true CN111846545A (en) | 2020-10-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010726100.8A Pending CN111846545A (en) | 2020-07-25 | 2020-07-25 | Cooling protection device of anti-freezing solution for hydraulic support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111846545A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112875023A (en) * | 2021-02-25 | 2021-06-01 | 郑州升达经贸管理学院 | Ash barrel rack convenient for feeding |
| CN114655545A (en) * | 2022-04-26 | 2022-06-24 | 海东市万牧农牧业发展有限公司 | Beef disinfection and bacteriostasis device in transportation process and use method thereof |
| CN114771396A (en) * | 2022-05-09 | 2022-07-22 | 安徽银汉机电科技有限公司 | Safety device for electric appliance and circuit element |
| CN114772014A (en) * | 2022-04-14 | 2022-07-22 | 吴春宝 | High-strength moisture-return-proof corrugated carton |
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| CN2541370Y (en) * | 2002-05-06 | 2003-03-26 | 赵丽 | Liquid freezing pot |
| CN206590258U (en) * | 2017-03-03 | 2017-10-27 | 湖南格林朗环保科技有限公司 | A kind of separating antifreezing liquid storage tank |
| KR101801365B1 (en) * | 2016-04-07 | 2017-11-27 | 구본열 | Automatic warm tissue dispenser |
| CN207450618U (en) * | 2017-11-08 | 2018-06-05 | 天津中驰石化制品有限公司 | A kind of anti-icing fluid pail pack |
| CN208007698U (en) * | 2018-01-23 | 2018-10-26 | 鹰潭市天元仙斛生物科技有限公司 | A kind of anti-freezing and heat-insulating device of dendrobium candidum |
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2020
- 2020-07-25 CN CN202010726100.8A patent/CN111846545A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2541370Y (en) * | 2002-05-06 | 2003-03-26 | 赵丽 | Liquid freezing pot |
| KR101801365B1 (en) * | 2016-04-07 | 2017-11-27 | 구본열 | Automatic warm tissue dispenser |
| CN206590258U (en) * | 2017-03-03 | 2017-10-27 | 湖南格林朗环保科技有限公司 | A kind of separating antifreezing liquid storage tank |
| CN207450618U (en) * | 2017-11-08 | 2018-06-05 | 天津中驰石化制品有限公司 | A kind of anti-icing fluid pail pack |
| CN208007698U (en) * | 2018-01-23 | 2018-10-26 | 鹰潭市天元仙斛生物科技有限公司 | A kind of anti-freezing and heat-insulating device of dendrobium candidum |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112875023A (en) * | 2021-02-25 | 2021-06-01 | 郑州升达经贸管理学院 | Ash barrel rack convenient for feeding |
| CN114772014A (en) * | 2022-04-14 | 2022-07-22 | 吴春宝 | High-strength moisture-return-proof corrugated carton |
| CN114772014B (en) * | 2022-04-14 | 2023-06-09 | 贵州鹏昇(集团)纸业有限责任公司 | High-strength anti-reversion corrugated carton |
| CN114655545A (en) * | 2022-04-26 | 2022-06-24 | 海东市万牧农牧业发展有限公司 | Beef disinfection and bacteriostasis device in transportation process and use method thereof |
| CN114655545B (en) * | 2022-04-26 | 2024-05-14 | 海东市万牧农牧业发展有限公司 | Beef sterilizing and bacteriostasis device in transportation process and use method thereof |
| CN114771396A (en) * | 2022-05-09 | 2022-07-22 | 安徽银汉机电科技有限公司 | Safety device for electric appliance and circuit element |
| CN114771396B (en) * | 2022-05-09 | 2023-06-09 | 安徽银汉机电科技有限公司 | Safety device for electric appliance and circuit element |
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Application publication date: 20201030 |
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