CN114275449B - Efficient and energy-saving refrigeration house heat preservation system - Google Patents
Efficient and energy-saving refrigeration house heat preservation system Download PDFInfo
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- CN114275449B CN114275449B CN202111535093.4A CN202111535093A CN114275449B CN 114275449 B CN114275449 B CN 114275449B CN 202111535093 A CN202111535093 A CN 202111535093A CN 114275449 B CN114275449 B CN 114275449B
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Abstract
The invention relates to the field of heat preservation equipment, in particular to a high-efficiency energy-saving refrigeration house heat preservation system which comprises a transportation device, wherein the transportation device comprises a conveyor belt, a plurality of refrigeration sources are arranged in the conveyor belt, side plates for heat preservation of the refrigeration sources are respectively arranged on two sides of the conveyor belt, the side plates are connected with the corresponding refrigeration sources, a plurality of heat preservation plates for heat preservation of the refrigeration sources are respectively arranged on the upper surface and the lower surface of the conveyor belt, a sealing strip with an inner oval hard inner core and a circular sealing rubber coated outside and an installation mechanism for installing the sealing strip are arranged between two adjacent heat preservation plates, and the sealing strip moves along with the conveyor belt in the process of thermal expansion and cold contraction of the heat preservation plates so that the sealing position is not easy to damage and the sealing effect is basically unchanged through the special structure of the sealing strip; meanwhile, the mounting accuracy of the sealing strips is improved through the mounting mechanism, and the sealing effect between the adjacent insulation boards is improved.
Description
Technical Field
The invention relates to the field of heat preservation equipment, in particular to a high-efficiency and energy-saving heat preservation system for a refrigeration house.
Background
When the refrigeration house heat preservation system is used for preserving heat of goods, the goods need to be refrigerated through the pre-refrigeration system and then put into the refrigeration house, so that the quick-freezing equipment in the conventional quick-freezing tunnel mainly comprises a material transportation device, a refrigeration source arranged in the material transportation device and a heat preservation plate arranged on the material transportation device and used for preserving heat of the refrigeration source. Because the refrigeration source is only opened in the use in the refrigeration tunnel, closes the refrigeration source when not using for be in cold and hot alternate state in the conveyer always, through the principle of heat transfer, make the heated board be in cold and hot alternate state always, lead to the reciprocal emergence of heated board expend with heat and contract with cold, sealing strip relative position between heated board and the heated board changes all the time, leads to sealed inefficacy, and then the life of reduction equipment.
Disclosure of Invention
The invention provides an efficient and energy-saving refrigeration house heat insulation system, which aims to solve the problem that the existing heat insulation plate is sealed and fails due to expansion with heat and contraction with cold.
The invention adopts the following technical scheme:
an efficient and energy-saving refrigeration house heat insulation system comprises a conveying device, wherein the conveying device comprises a conveying belt, a plurality of refrigeration sources are arranged in the conveying belt, and a plurality of heat insulation plates for heat insulation of the refrigeration sources are arranged on the upper surface and the lower surface of the conveying belt;
the two adjacent insulation boards are connected through a bar-shaped sealing strip, the sealing strip comprises an oval hard inner core, and round sealing rubber is coated outside the oval hard inner core;
the two adjacent insulation boards are connected through a bar-shaped sealing strip, the sealing strip comprises an oval hard inner core, and round sealing rubber is coated outside the oval hard inner core;
the sealing strip fixing device also comprises a mounting mechanism for mounting the sealing strip; the installation mechanism comprises an installation telescopic rod, two installation fixed components with the same structure are arranged on the inner side of the installation telescopic rod and are connected through a torsion spring, a reference rod is arranged between the two installation fixed components, and two sides of the installation fixed components below the reference rod are respectively connected with the reference rod in a sliding mode through sliding hinge rods; two groups of symmetrical installation rotating assemblies are arranged between the reference rod and the installation telescopic rod, and the two installation rotating assemblies are connected through a phase adjusting wheel;
the mounting mechanism further comprises a mounting column for connecting the sealing strip, wherein the mounting column sequentially penetrates through the central positions of the mounting telescopic rod, the two mounting fixed components, the reference rod, the torsion spring and the phase adjusting wheel; the mounting column is hinged with the mounting telescopic rod and the two cross rods and is fixedly connected with the reference rod;
the mounting mechanism further comprises two symmetrical mounting and fixing assemblies, each mounting and fixing member comprises a clamping and connecting plate for connecting a heat-insulating plate and a hinge joint connected to the top of the clamping and connecting plate, and each hinge joint is hinged with the end part of a corresponding mounting telescopic rod;
the system also comprises a movable clamping block used for connecting the adjacent heat-insulation plates.
Furthermore, the installation telescopic rod comprises a middle rod sleeve, and two ends of the middle rod sleeve are respectively sleeved with a sliding rod and connected through a pressure spring; and two ends of the sliding rod are respectively hinged with the corresponding hinged joints.
Further, each of the mounting assemblies includes a cross bar and sliding shafts connected to both ends of the cross bar;
and the connecting shafts are connected with two connecting shafts fixedly on the cross rods on the lower surface of the reference rod, and each connecting shaft is connected with a sliding groove arranged on the reference rod in a sliding manner through a sliding hinge rod.
Furthermore, two symmetrical limiting columns are fixedly connected to two ends of the reference rod; each mounting rotating assembly comprises a second hinge sleeve hinged on the corresponding limiting column; one end of the second hinge sleeve is connected with a hinge piece through a first fixed rod, and the hinge piece is connected with the phase adjusting wheel through a second telescopic rod; the other end of the second hinge sleeve is connected with a first hinge sleeve through a first telescopic rod, and each first hinge sleeve is hinged to the corresponding hinge joint.
Furthermore, the adjacent heat-insulation plates are connected through a splicing structure, and the splicing structure comprises a first splicing table arranged on one side of one heat-insulation plate and a second splicing table arranged on one side of the other heat-insulation plate and in mirror image with the first splicing table;
the first splicing table comprises an edge horizontal boss, the edge horizontal boss is integrally connected with a right-angled trapezoid groove, the right-angled trapezoid groove is integrally connected with an isosceles trapezoid groove, and the isosceles trapezoid groove is integrally connected with an edge horizontal groove;
the right-angle edge of the right-angle trapezoidal groove is collinear with the vertical surface of the edge horizontal boss, and the upper bottom edge of the isosceles trapezoidal groove is positioned at the center of the heat-insulation board;
the rod-shaped sealing strip is positioned at the geometric center between the upper bottom edge of the isosceles trapezoid groove of the first splicing table and the upper bottom edge of the isosceles trapezoid table of the second splicing table.
Furthermore, each edge horizontal boss is connected with the corresponding edge horizontal groove through an elastic connecting strip.
Furthermore, the middle of each elastic connecting strip is oval, and two ends of each elastic connecting strip are wedge-shaped;
each wedge-shaped groove matched with the two ends of the elastic connecting strip is formed in the inner wall of the edge horizontal boss and the inner wall of the corresponding edge horizontal groove.
Furthermore, the inner wall of the clamping plate is provided with a convex edge, and the heat insulation plate is provided with a clamping groove matched with the clamping plate and the convex edge.
Furthermore, the movable clamping block comprises clamping heads matched with each clamping groove, and the two clamping heads are connected through elastic strips.
The invention has the beneficial effects that: due to the special structure of the sealing strip, the sealing strip moves along with the insulation board in the expansion and contraction process of the insulation board, so that the sealing position is not easy to damage, and the sealing effect is basically unchanged;
meanwhile, in the installation process of the sealing strips, the installation precision of the sealing strips is improved through the installation mechanism, and the sealing effect between the adjacent insulation boards is further improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of the whole heat-insulating equipment system of the present invention;
FIG. 2 is a cross-sectional view of FIG. 1 in accordance with the present invention;
FIG. 3 is a perspective view of the mounting mechanism of the present invention;
FIG. 4 is a schematic view of an installation state of two insulation boards for installing sealing strips through an installation mechanism in the view of FIG. 2;
FIG. 5 isbase:Sub>A cross-sectional view taken along plane A-A of FIG. 4 in accordance with the present invention;
FIG. 6 is a schematic cross-sectional view of the sealing tape of FIG. 5 according to the present invention;
FIG. 7 is a schematic structural view of the mounting mechanism of FIG. 4 with the telescoping rod, stationary component and rotating component removed;
FIG. 8 is a perspective view of the entire mounting mechanism of the present invention;
FIG. 9 is an exploded view of FIG. 8 of the present invention;
FIG. 10 is a schematic view of the mounting mechanism of FIG. 8 with the mounting telescoping rod and mounting stationary member removed in accordance with the present invention;
FIG. 11 is a connection state diagram of the connection of the heat-insulating board of the present invention with the elastic connecting strip through the movable clamping block;
FIG. 12 is a schematic perspective view of the movable clamping block of FIG. 11 according to the present invention;
in the figure: 11. a conveyor belt; 12. a side plate; 13. a thermal insulation board; 131. a card slot; 14. a refrigeration source; 20. an installation mechanism; 21. an elastic connecting strip; 22. installing a fixed component; 221. a hinge joint; 222. a clamping plate; 23; installing a telescopic rod; 24. installing a fixed component; 241. a cross bar; 242. a sliding hinge rod; 243. a sliding wheel; 25. installing a rotating assembly; 251. a first hinge sleeve; 252. a first telescopic rod; 253. a second hinge sleeve; 254. a first fixed rod; 255. an articulation member; 256. a phase adjustment wheel; 257. a second telescopic rod; 26. a reference bar; 261. a chute; 262. a limiting post; 30. a sealing strip; 301. sealing rubber; 302. a hard inner core; 31. a movable clamping block; 311. a clamping head; 312. an elastic strip; 32. and (7) mounting the column.
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 obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
According to the embodiment of the efficient and energy-saving refrigeration house heat insulation system, as shown in the figures 1 and 2, the heat insulation equipment system comprises a conveying device, the conveying device comprises a conveying belt 11, a plurality of refrigeration sources 14 are arranged inside the conveying belt 11, two sides of the conveying belt 14 are fixedly connected with side plates 12 used for heat insulation of the refrigeration sources 14, and the side plates 12 are connected with the corresponding refrigeration sources 14 through bolts; the upper surface and the lower surface of the conveyor belt 14 are provided with a plurality of insulation boards 13 used for insulating the refrigeration source 14.
Referring to fig. 3 and 4, adjacent insulation boards 13 are connected through a splicing structure, and the splicing structure comprises a first splicing table arranged on one side of one insulation board 13 and a second splicing table arranged on one side of another insulation board and mirrored with the first splicing table.
First concatenation platform includes marginal level boss, and marginal level boss an organic whole is connected with the right trapezoid groove, and right trapezoid groove an organic whole is connected with the isosceles trapezoid groove, and isosceles trapezoid groove an organic whole is connected with marginal horizontal groove. The right-angle side of right-angle dovetail groove and the vertical face collineation of marginal horizontal boss, the last base of isosceles dovetail groove is located the central point of heated board 13 and puts.
Referring to fig. 5-7, a rod-shaped sealing strip 30 for sealing the adjacent heat-insulating boards 13 is arranged between the center of the upper bottom edge of the isosceles trapezoid-shaped groove of the first splicing table and the center of the upper bottom edge of the isosceles trapezoid-shaped table of the second splicing table, the sealing strip 30 comprises an oval hard inner core 302, and the oval hard inner core 302 is externally coated with circular sealing rubber 301. The heat insulation plate 13 located on the same vertical straight line with the sealing strip 30 is provided with a clamping groove 131.
Because heated board 13 is at the in-process of concatenation, because the inconstant of room temperature for heated board 13's actual length and width numerical value is not equal with the actual length and width numerical value under the normality of working, consequently the thin thickness face through circular sealing rubber 301 is laminated with isosceles trapezoid groove upper base is accurate mutually, need carry out sealing strip 30's mounted position through special installation mechanism 20.
Referring to fig. 8-10, the mounting mechanism 20 includes a mounting post 32 connected to the sealing strip 30 by a key and a key slot, a reference rod 26 is fixedly connected to the mounting post 32, the center of the reference rod 26 is a fixed point, two symmetrical limiting posts 262 are fixedly connected to two ends of the reference rod 26, and a second hinge sleeve 253 is hinged to each limiting post 262. The mounting post 32 cover that is located benchmark pole 26 top is equipped with phase place adjustment wheel 256, and the last symmetrical connection of phase place adjustment wheel 256 has second telescopic link 257, equal fixedly connected with articulated elements 255 on every second telescopic link 257, and every articulated elements 255 all is through first fixed rod 254 and the second hinge cover 253 fixed connection that corresponds.
The mounting mechanism 20 further comprises two symmetrical mounting and fixing components 22, each mounting and fixing component 22 comprises a clamping plate 222 used for connecting the insulation board 13 and a hinge joint 221 connected to the top of the clamping plate 222, the inner wall of each clamping plate 222 is provided with a convex rib, and each hinge joint 221 is hinged with a first hinge sleeve 251; each first hinge sleeve 251 is connected with a corresponding second hinge sleeve 253 through a first telescopic rod 252. The first hinge sleeve 251, the first telescopic rod 252, the second hinge sleeve 253, the first fixing rod 254 and the hinge 255 are connected to form the mounting and rotating assembly 25.
Be provided with installation telescopic link 23 on the erection column 32 that is located the phase place adjustment wheel 256 top, installation telescopic link 23 includes the intermediate lever cover articulated with erection column 32, and the intermediate lever cover both ends have cup jointed the slide bar respectively and have passed through the pressure spring and connect, and every slide bar all articulates with the articulated joint 221 that corresponds. The upper surface and the lower surface of the reference rod 26 are provided with the mounting fixing components 24 with the same structure, each mounting fixing component 24 comprises a cross rod 241 and a sliding shaft 243 connected to two ends of the cross rod 241, and each cross rod 241 is sleeved on the mounting column 32 and connected through a torsion spring; the torsion spring is used to attach the two cross bars 241 to the insulation board 13. Two connecting shafts are fixedly connected to the cross rod 241 on the lower surface of the reference rod 26, the two connecting shafts are symmetrically arranged by taking the mounting shaft 32 as a center, each connecting shaft is hinged to a sliding hinge rod 242, and the other end of each sliding hinge rod 242 is slidably connected with a sliding groove 261 arranged on the reference rod 26.
The installation process comprises the following steps: firstly, the adjacent insulation boards 13 are respectively sleeved on a rotating shaft and are separated by the length value of the insulation board 13 in the actual working normal state, then the clamping boards 222 are respectively inserted into the clamping grooves 131, meanwhile, the mounting columns 32 are connected with the sealing strips 30, and the mounting telescopic rods 23 are in the original length state under the action of the pressure springs in the mounting telescopic rods 23.
And then, the two adjacent insulation boards 13 are pushed to rotate along the rotating shaft until the two adjacent insulation boards 13 are in the same line, and the two ends of the elastic sealing strips 21 are inserted into the corresponding wedge-shaped grooves. The two adjacent insulation boards 13 are mutually drawn close under the action of the elastic sealing strips 21.
In the rotating process of two adjacent insulation boards 13, the installation telescopic rods 23 are gradually shortened to enable the sealing strip 30 to be still positioned at the geometric center of the upper bottom edge of the isosceles trapezoid, meanwhile, the sliding shaft 243 rolls along the corresponding insulation board 13 to enable the included angle between the two cross rods 241 facing the clamping groove 131 to be gradually increased, one end of the hinge rod 242 rotates on the connecting shaft, and the other end of the hinge rod slides on the sliding groove 261; the reference bar 26 is now always on the bisector of the two cross bars 241 and is perpendicular to the insulation board 13.
Two installation mounting 22 are by inclining to two adjacent heated board 13 department collinear positions when, first hinge sleeve 251 rotates for hinge 221, first telescopic link 252 extension or shorten and for spacing post 262 initiative, drive first fixed pole 254 and second hinge sleeve 253 simultaneously and rotate for spacing 262, and then drive the articulated elements removal, second telescopic link 257 extension or shorten and rotate for phase adjustment wheel 256, make erection column 32 drive sealing strip 30 and rotate, the turned angle of regulation sealing strip 30 through the offset of two installation fixed component 22, make sealing rubber 301 of sealing strip 30 closely laminate with the contact surface of heated board 13, and be in on the adhesive tape thickness position that corresponds.
The installation room temperature is assumed to be higher than the temperature in the actual normal operation. When two adjacent insulation boards 13 are parallel, two mounting and fixing assemblies 22 have a relative left-right position difference, that is, the mounting telescopic rods 23 are inclined, but the reference rods 26 are perpendicular to the insulation boards 13, so that the phase adjusting wheels 256 rotate by a certain angle, which is determined according to the inclination amount and the inclination angle of the mounting telescopic rods 23.
When the installation is suitable to be in the suitable position of the installation of two insulation boards 13 under the condition that the angle bisector between the minor axis and the major axis of the sealing strip 30 is used as the reference temperature, when the length and the thickness of the insulation board 13 are not changed in the suitable length (the suitable length refers to the length and the thickness value in the normal working state) at the beginning of the installation, the sealing strip 30 can rotate at a preset angle (the angle at the position is related to the length and the width of the insulation board 13 during the installation) during the installation. Thereby ensuring the proper sealing effect of the sealing strip 30.
Assuming that the two insulation panels 13 are mounted in a collinear manner, i.e. at too high a temperature and close to each other, it is only necessary that the minor axes of the ellipses are located in contact with the two planes, so that the sealing effect remains substantially unchanged.
For example, when the temperature is high, two adjacent insulation boards 13 become long and thick, and the sealing strip 30 turns to one side of the thick rubber pad to be in contact with the sealing position, so that the whole sealing effect is basically unchanged.
Referring to fig. 11 and 12, after the installation is completed, each edge horizontal boss is connected with the corresponding edge horizontal groove through an elastic connecting strip 21, the middle of each elastic connecting strip 21 is oval, and two ends of each elastic connecting strip 21 are wedge-shaped; all offer on every edge horizontal boss inner wall and the horizontal recess inner wall in edge that corresponds with the both ends assorted wedge groove of elastic connection strip 21, during installation elastic connection strip 21, only need insert the wedge at elastic connection strip 21 both ends and can realize the initial joint of two adjacent heated boards 13 in the wedge inslot that corresponds, take off installation mechanism 20 again. Then fix two adjacent heated boards 13 through the activity joint piece 31 that designs, activity joint piece 31 and every draw-in groove 131 assorted joint 311, connect through elasticity strip 312 between two joint 311. When the two insulation boards 13 are fixed, each clamping connector 311 is inserted into the clamping groove 131.
In conclusion, in the process of expansion with heat and contraction with cold of the heat preservation plate, the sealing strip moves along with the heat preservation plate to enable the sealing position not to be damaged easily, and the sealing effect is basically unchanged. The installation accuracy of heated board sealing strip when the installation time is improved, lead to sealed effect better.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, which is intended to cover any modifications, equivalents, improvements, etc. within the spirit and scope of the present invention.
Claims (9)
1. The utility model provides an energy-efficient freezer heat preservation system which characterized in that: the system comprises a conveying device, wherein the conveying device comprises a conveying belt, a plurality of refrigeration sources are arranged in the conveying belt, and a plurality of insulation boards for insulation of the refrigeration sources are arranged on the upper surface and the lower surface of the conveying belt;
two adjacent insulation boards are connected through a bar-shaped sealing strip, the sealing strip comprises an oval hard inner core, and round sealing rubber is coated outside the oval hard inner core;
the sealing strip fixing device also comprises a mounting mechanism for mounting the sealing strip; the installation mechanism comprises an installation telescopic rod, two installation fixing components with the same structure are arranged on the inner side of the installation telescopic rod, the two installation fixing components are connected through a torsion spring, a reference rod is arranged between the two installation fixing components, and two sides of the installation fixing components below the reference rod are respectively connected with the reference rod in a sliding mode through sliding hinge rods; two groups of symmetrical installation rotating assemblies are arranged between the reference rod and the installation telescopic rod, and the two installation rotating assemblies are connected through a phase adjusting wheel;
the mounting mechanism further comprises a mounting column for connecting the sealing strip, wherein the mounting column sequentially penetrates through the central positions of the mounting telescopic rod, the two mounting fixed components, the reference rod, the torsion spring and the phase adjusting wheel; the mounting column is hinged with the mounting telescopic rod and the two cross rods and is fixedly connected with the reference rod;
the mounting mechanism further comprises two symmetrical mounting and fixing assemblies, each mounting and fixing assembly comprises a clamping and connecting plate for connecting a heat-insulating plate and a hinge joint connected to the top of the clamping and connecting plate, and each hinge joint is hinged with the end part of a corresponding mounting telescopic rod;
the system also comprises a movable clamping block used for connecting the adjacent heat-insulation plates.
2. The efficient and energy-saving cold storage heat preservation system according to claim 1, characterized in that: the installation telescopic rod comprises a middle rod sleeve, and two ends of the middle rod sleeve are respectively sleeved with a sliding rod and connected through a pressure spring; and two ends of the sliding rod are respectively hinged with the corresponding hinged joints.
3. The efficient and energy-saving cold storage heat preservation system according to claim 1, characterized in that: each installation fixing component comprises a cross rod and sliding shafts connected to two ends of the cross rod;
and the connecting shafts are connected with the sliding grooves in a sliding manner through sliding hinged rods and are connected with the sliding grooves formed in the reference rods in a sliding manner.
4. The efficient and energy-saving cold storage heat preservation system according to claim 1, characterized in that: two symmetrical limiting columns are fixedly connected to two ends of the reference rod; each mounting rotating assembly comprises a second hinge sleeve hinged on the corresponding limiting column; one end of the second hinge sleeve is connected with a hinge piece through a first fixed rod, and the hinge piece is connected with the phase adjusting wheel through a second telescopic rod; the other end of the second hinge sleeve is connected with a first hinge sleeve through a first telescopic rod, and each first hinge sleeve is hinged to the corresponding hinge joint.
5. The efficient and energy-saving cold storage heat preservation system according to claim 1, characterized in that: the adjacent insulation boards are connected through a splicing structure, and the splicing structure comprises a first splicing table arranged on one side of one insulation board and a second splicing table arranged on one side of the other insulation board and in mirror image with the first splicing table;
the first splicing table comprises an edge horizontal boss, the edge horizontal boss is integrally connected with a right-angled trapezoid groove, the right-angled trapezoid groove is integrally connected with an isosceles trapezoid groove, and the isosceles trapezoid groove is integrally connected with an edge horizontal groove;
the right-angle edge of the right-angle trapezoidal groove is collinear with the vertical surface of the edge horizontal boss, and the upper bottom edge of the isosceles trapezoidal groove is positioned at the center of the heat-insulation board;
the bar-shaped sealing strip is positioned at the geometric center between the upper bottom edge of the isosceles trapezoid groove of the first splicing table and the upper bottom edge of the isosceles trapezoid table of the second splicing table.
6. The efficient and energy-saving refrigeration house heat preservation system according to claim 5, characterized in that: each edge horizontal boss is connected with the corresponding edge horizontal groove through an elastic connecting strip.
7. The efficient and energy-saving refrigeration storage heat preservation system according to claim 6, characterized in that: the middle of each elastic connecting strip is oval, and the two ends of each elastic connecting strip are wedge-shaped; each edge horizontal boss inner wall and the corresponding edge horizontal groove inner wall are provided with wedge-shaped grooves matched with the two ends of the elastic connecting strip.
8. The efficient and energy-saving cold storage heat preservation system according to claim 1, characterized in that: the inner wall of the clamping plate is provided with a convex edge, and the heat insulation plate is provided with a clamping groove matched with the clamping plate and the convex edge.
9. The efficient and energy-saving refrigeration house heat preservation system according to claim 8, characterized in that: the movable clamping block comprises clamping joints matched with the clamping grooves, and the two clamping joints are connected through elastic strips.
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| CN202111535093.4A CN114275449B (en) | 2021-12-15 | 2021-12-15 | Efficient and energy-saving refrigeration house heat preservation system |
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| CN202111535093.4A CN114275449B (en) | 2021-12-15 | 2021-12-15 | Efficient and energy-saving refrigeration house heat preservation system |
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|---|---|
| CN114275449A (en) | 2022-04-05 |
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