CN221038211U - Emulsified asphalt test device - Google Patents
Emulsified asphalt test device Download PDFInfo
- Publication number
- CN221038211U CN221038211U CN202323022310.7U CN202323022310U CN221038211U CN 221038211 U CN221038211 U CN 221038211U CN 202323022310 U CN202323022310 U CN 202323022310U CN 221038211 U CN221038211 U CN 221038211U
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- mixing
- emulsified asphalt
- joint
- heat preservation
- transparent
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- 239000010426 asphalt Substances 0.000 title claims abstract description 63
- 238000012360 testing method Methods 0.000 title claims abstract description 16
- 238000002156 mixing Methods 0.000 claims abstract description 76
- 238000003756 stirring Methods 0.000 claims abstract description 34
- 238000009413 insulation Methods 0.000 claims abstract description 22
- 239000007788 liquid Substances 0.000 claims abstract description 21
- 230000002093 peripheral effect Effects 0.000 claims abstract description 11
- 238000004321 preservation Methods 0.000 claims description 20
- 238000010438 heat treatment Methods 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 6
- 238000010030 laminating Methods 0.000 claims 1
- 238000003466 welding Methods 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 4
- 239000002994 raw material Substances 0.000 description 50
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 238000002474 experimental method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 238000005303 weighing Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000010907 mechanical stirring Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Road Paving Machines (AREA)
Abstract
The utility model discloses an emulsified asphalt test device, and relates to the technical field of emulsified asphalt. The utility model comprises a heat-insulating barrel, a control component and a mixing component, wherein the upper part of the inner side of the heat-insulating barrel is inserted with the mixing component, the bottom of the mixing component is penetrated and clamped with a transparent mixing pipe, the center of the bottom of the transparent mixing pipe is penetrated and clamped with a liquid passing pipe, one end of the peripheral surface of the transparent mixing pipe is clamped with a capacity graduated scale, the upper side of the mixing component is clamped with the control component, the center of the top of the control component is penetrated and clamped with a rotating rod, one side of the top of the control component is penetrated and clamped with an air pump, and the air pump is positioned at the top of the transparent mixing pipe. According to the utility model, the insulation barrel, the control assembly and the mixing assembly are arranged, so that the problems that the structure of the emulsified asphalt test device is complex, the cost and the maintenance cost are high, the operation of taking the emulsified asphalt for many times is inconvenient, and the stirring structure is required to be started again for stirring before taking the emulsified asphalt are solved.
Description
Technical Field
The utility model belongs to the technical field of emulsified asphalt, and particularly relates to an emulsified asphalt test device.
Background
The emulsified asphalt is an oil-in-water asphalt emulsion formed by dispersing viscous asphalt in water containing an emulsifier-stabilizer in a droplet state through hot melting and mechanical action, and is a road building material which is prepared by dispersing road asphalt which is usually used at high temperature into water through a mechanical stirring and chemical stabilization method and has very low viscosity and very good fluidity at normal temperature, the defects of easy flowing and oil-flushing of asphalt at high temperature, hard and brittle cracking at low temperature and the like can be better solved, the production of the emulsified asphalt is usually simulated through an experimental device before the emulsified asphalt is put into large-scale production, and the performance of a small amount of processed asphalt is detected to ensure that the performance of the emulsified asphalt can reach the standard, so that the waste of a large amount of raw materials is avoided, but the following defects still exist in the practical use:
The utility model discloses an automatic experimental device for emulsified asphalt, which is disclosed in the publication No. CN218637158U, wherein the heating device is fixedly arranged in the installation groove; the mixing tank is fixedly arranged at the top of the heating device; the tank cover is fixedly arranged at the top of the mixing tank; the mounting plate is fixedly arranged on one side of the mixing tank; the control device is fixedly arranged at the top of the mounting plate, the emulsified asphalt automatic experimental device improves the using convenience, but has a complex structure, and because the amount of raw materials required to be taken in the experiment is small, a more precise weighing instrument is required to measure the taking amounts of various raw materials, so that the large difference between the raw materials and the actual ratio of the raw materials to be put into production is avoided, and the cost and the maintenance expenditure are greatly increased due to the precise feeding structure or the weighing instrument;
When the emulsified asphalt test device is used, the emulsified asphalt used for experiments often needs to be subjected to multi-dimensional detection, the emulsified asphalt is inconvenient to take, and the phenomenon such as precipitation is avoided when taking each time, so that the reliability of an experiment result is ensured, and the stirring structure in the device needs to be started again before taking, so that the electric charge expense is increased.
Disclosure of utility model
The utility model aims to provide an emulsified asphalt test device, which solves the problems that the structure of the emulsified asphalt test device is complex, the cost and the maintenance cost are high, the emulsified asphalt for experiments usually needs multi-dimensional detection, the operation of taking for many times is inconvenient, and the stirring structure needs to be started again for stirring before taking so as to avoid precipitation.
In order to solve the technical problems, the utility model is realized by the following technical scheme:
The utility model relates to an emulsified asphalt test device, which comprises a heat insulation barrel, a control component and a mixing component, wherein the upper part of the inner side of the heat insulation barrel is inserted with the mixing component, the bottom of the mixing component is penetrated and clamped with a transparent mixing pipe, the center of the bottom of the transparent mixing pipe is penetrated and clamped with a liquid passing pipe, one end of the outer peripheral surface of the transparent mixing pipe is clamped with a capacity graduated scale, the taking amount of each raw material can be monitored through the capacity graduated scale when the raw material is taken, the taking amount of the emulsified asphalt is detected when the emulsified asphalt is used, the structure is simple, the operation is convenient, the feeding of the raw material and the discharging of the emulsified asphalt are both carried out through the liquid passing pipe, the structure is further simplified, the cleaning is convenient, the upper side of the mixing component is clamped with the control component, the center of the top of the control component is penetrated and clamped with a rotating rod, the rotating rod is driven by a stirring motor when the raw material is stirred, the raw material in the transparent mixing pipe can be further stirred, the emulsified asphalt can be prevented from precipitating when the raw material is required to be taken, the air pump is used, the top side of the control component penetrates through the transparent mixing pipe, the air pump is positioned in the transparent mixing pipe, the position can be pumped into the transparent mixing pipe through the transparent mixing pipe, the air pump is required to be heated, and the air is convenient to be pumped to be used, and mixed in the transparent mixing pipe, and the position is convenient to be used, and mixed in the air mixing pipe and heated.
Further, a second support frame is fixedly clamped at the center of the bottom of the inner side of the heat-insulating barrel, a first support frame is fixedly clamped at the edge of the top of the inner side of the heat-insulating barrel, a heat-insulating pad is fixedly clamped at the edge of the upper part of the first support frame, a heating pipe is fixedly clamped at the inner side of the heat-insulating barrel, and a drain pipe penetrates through and is welded at the bottom of the peripheral surface of the heat-insulating barrel;
Can avoid a large amount of heat to scatter and disappear in the environment when heating through heat preservation bucket and heat preservation pad, improve thermal utilization ratio, can heat the water in the heat preservation bucket through the heating pipe, further carry out water bath heating to the raw materials in the transparent hybrid tube, the heat preservation bucket inboard is provided with temperature sensor, can monitor the temperature, guarantees that the temperature is in suitable scope.
Further, a connecting frame is fixedly clamped at one end of the outer peripheral surface of the heat preservation barrel, a telescopic frame is slidably clamped at the upper end of the connecting frame, a stirring motor is clamped at one end of the top of the telescopic frame, a driving rod is rotatably clamped at the bottom of the stirring motor, the driving rod penetrates and is inserted into the upper side of the telescopic frame, and the driving rod is suspended at the center of the upper part of the heat preservation barrel;
Can drive the actuating lever through the agitator motor and rotate, further drive the dwang and rotate the raw materials in the transparent mixing tube and stir, improve experimental apparatus's degree of automation.
Further, a driving groove is formed in the center of the top of the rotating rod, the driving rod is inserted into the inner side of the driving groove, a rotating handle and stirring blades are fixedly welded on the peripheral surface of the rotating rod, the stirring blades are positioned at the lower part of the control assembly, the rotating handle is positioned at the upper part of the control assembly, and the rotating rod is inserted into the inner side of the transparent mixing pipe at the lower part of the control assembly;
After taking control assembly and mixed subassembly to the position that needs to detect, when needs take emulsified asphalt, can drive dwang and stirring leaf through rotatory rotation handle and rotate, stir emulsified asphalt, easy operation is convenient, reduces the charges of electricity expense, and makes and separates between mixed subassembly, control assembly and the heat preservation bucket, is convenient for remove the emulsified asphalt for experiments to the position that needs to use.
Further, a movable handle is welded and fixed on the upper edge of the mixing assembly, a sealing plug is inserted into the bottom of the liquid passing pipe, the transparent mixing pipe is inserted into the inner side of the heat insulation barrel, the liquid passing pipe is inserted into the inner side of the second support frame, the edge of the mixing assembly is attached to the upper part of the first support frame, and the movable handle is inserted into the bottom of the control assembly in a penetrating manner;
When the material loading of raw materials is carried out, insert the liquid pipe in the raw materials and bleed through the air pump in to transparent hybrid tube, make the raw materials can flow to transparent hybrid tube under the atmospheric pressure effect in to the volume of taking of raw materials through capacity scale monitoring, guarantee the accuracy of raw materials ratio, and when needing to take emulsified asphalt, pump into gaseous in to transparent hybrid tube through the air pump, take a certain amount of emulsified asphalt fast, the feeding of raw materials and the ejection of compact of emulsified asphalt all pass through the liquid pipe, further simplified the structure, be convenient for wash.
The utility model has the following beneficial effects:
According to the utility model, although the convenience of use is improved by arranging the control component and the mixing component, the structure is complicated, and the taking amount of various raw materials is required to be measured by using a more precise weighing instrument due to less raw material amount required for experiments, so that great difference between the raw materials and the actual proportion of the raw materials in production is avoided, the cost and the maintenance cost are greatly increased due to the precise feeding structure or the weighing instrument, when the raw materials are taken, the bottom end of the liquid passing pipe is inserted into the raw materials and the transparent liquid passing pipe is pumped by the air pump, the raw materials can be rapidly pumped to the inner side of the transparent liquid passing pipe, the taking amount of each raw material can be monitored by the capacity graduated scale when the raw materials are taken, the accuracy of the proportion is ensured, the operation is simple and convenient, the device structure is simplified, and the taking efficiency of the raw materials is improved.
According to the utility model, the problems that the emulsified asphalt test device is required to be subjected to multi-dimensional detection when in use, the emulsified asphalt for experiments is inconvenient to take, precipitation and the like are avoided when the emulsified asphalt is taken out each time, the reliability of an experiment result is ensured, the stirring structure in the device is required to be started again before taking out, and the cost of electricity is increased are solved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a structural effect diagram of the present utility model;
FIG. 3 is a block diagram of the thermal insulation barrel of the present utility model;
FIG. 4 is a cross-sectional view of the insulating bucket of the present utility model;
FIG. 5 is a block diagram of a control assembly of the present utility model;
fig. 6 is a block diagram of a hybrid module of the present utility model.
Reference numerals:
1. A heat-preserving barrel; 101. a stirring motor; 102. a connecting frame; 103. a telescopic frame; 104. a driving rod; 105. a thermal insulation pad; 106. a drain pipe; 107. a first support frame; 108. heating pipes; 109. a second support frame; 2. a control assembly; 201. an air pump; 202. a rotating lever; 203. stirring the leaves; 204. a driving groove; 205. rotating the handle; 3. a mixing assembly; 301. a transparent mixing tube; 302. a capacity graduated scale; 303. a liquid pipe; 304. a sealing plug; 305. the handle is moved.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.
Referring to fig. 1-6, the utility model relates to an emulsified asphalt testing device, which comprises a heat insulation barrel 1, a control component 2 and a mixing component 3, wherein the upper part of the inner side of the heat insulation barrel 1 is inserted with the mixing component 3, the bottom of the mixing component 3 is penetrated and clamped with a transparent mixing pipe 301, the center of the bottom of the transparent mixing pipe 301 is penetrated and clamped with a liquid passing pipe 303, one end of the peripheral surface of the transparent mixing pipe 301 is clamped with a capacity graduated scale 302, when feeding and emulsified asphalt are taken, the addition amount of various raw materials or the taking amount of emulsified asphalt are detected in the feeding or discharging process through the capacity graduated scale 302, the feeding and the discharging of the raw materials are both facilitated to be cleaned through the liquid passing pipe 303, the upper side of the mixing component 3 is clamped with the control component 2, the center of the top of the control component 2 is penetrated and clamped with a rotating rod 202, when stirring of raw materials, drive the rotation of dwang 202 through agitator motor 101, further stir the raw materials in the transparent mixing tube 301, and when taking the raw materials, stir the emulsified asphalt through manual rotatory dwang 202 and avoid depositing, control module 2 top one side runs through the joint has air pump 201, air pump 201 is located transparent mixing tube 301 top, when carrying out the material loading of raw materials, pump down in to transparent mixing tube 301 through air pump 201, further pump down the raw materials to transparent mixing tube 301 inboard through the atmospheric pressure, when taking the emulsified asphalt, take down mixing module 3 and control module 2 from heat preservation bucket 1 upside and remove the position that needs to use, pump into gas in to transparent mixing tube 301 through air pump 201, pump out a certain amount of emulsified asphalt through logical liquid pipe 303.
As shown in fig. 1-4, a second support frame 109 is fixedly clamped at the center of the bottom of the inner side of the heat insulation barrel 1, a first support frame 107 is fixedly clamped at the edge of the top of the inner side of the heat insulation barrel 1, a heat insulation pad 105 is clamped at the edge of the upper part of the first support frame 107, a heating pipe 108 is fixedly clamped at the inner side of the heat insulation barrel 1, a drain pipe 106 penetrates through and is welded at the bottom of the outer circumferential surface of the heat insulation barrel 1, a connecting frame 102 is fixedly clamped at one end of the outer circumferential surface of the heat insulation barrel 1, a telescopic frame 103 is fixedly clamped at the upper end of the connecting frame 102 in a sliding manner, a stirring motor 101 is clamped at one end of the top of the telescopic frame 103, a driving rod 104 is rotatably clamped at the bottom of the stirring motor 101, the driving rod 104 penetrates through and is inserted at the upper side of the telescopic frame 103, and the driving rod 104 is suspended at the center of the upper part of the heat insulation barrel 1;
Before stirring the raw materials, pouring certain water into the heat-preserving container 1, pulling the expansion bracket 103 upwards, inserting the mixing component 3 and the control component 2 into the heat-preserving container 1, inserting the driving rod 104 into the driving groove 204, heating the water in the heat-preserving container 1 through the heating pipe 108, further heating the raw materials in the transparent mixing pipe 301 in a water bath, driving the driving rod 104 to rotate through the stirring motor 101, and further driving the rotating rod 202 to rotate to stir the raw materials in the transparent mixing pipe 301.
As shown in fig. 1, 2 and 5, a driving groove 204 is formed in the center of the top of the rotating rod 202, the driving rod 104 is inserted into the inner side of the driving groove 204, a rotating handle 205 and a stirring blade 203 are welded and fixed on the peripheral surface of the rotating rod 202, the stirring blade 203 is positioned at the lower part of the control assembly 2, the rotating handle 205 is positioned at the upper part of the control assembly 2, and the rotating rod 202 is inserted into the inner side of the transparent mixing tube 301 at the lower part of the control assembly 2;
After taking control assembly 2 and mixing assembly 3 to the position that needs to detect, when needs take emulsified asphalt, drive dwang 202 and stirring leaf 203 through rotatory rotation handle 205 and rotate, stir emulsified asphalt, avoid the sediment to lead to experimental result and actual use to appear the deviation.
As shown in fig. 1, 2 and 6, a movable handle 305 is welded and fixed on the upper edge of the mixing assembly 3, a sealing plug 304 is inserted at the bottom of the liquid-passing pipe 303, the transparent mixing pipe 301 is inserted inside the heat-preserving container 1, the liquid-passing pipe 303 is inserted inside the second supporting frame 109, the edge of the mixing assembly 3 is attached to the upper portion of the first supporting frame 107, and the movable handle 305 is inserted at the bottom of the control assembly 2 in a penetrating manner;
When raw material feeding is performed, the liquid passing pipe 303 is inserted into raw materials, the transparent mixing pipe 301 is pumped by the air pump 201, the raw materials flow into the transparent mixing pipe 301 under the action of air pressure, the taking amount of the raw materials is monitored by the capacity graduated scale 302, when emulsified asphalt needs to be taken, the sealing plug 304 is pulled out, air is pumped into the transparent mixing pipe 301 by the air pump 201, the emulsified asphalt is rapidly discharged by the liquid passing pipe 303 through the air pressure, and after the use is finished, the separation control assembly 2 and the mixing assembly 3 are used for cleaning the emulsified asphalt respectively.
The specific working principle of the utility model is as follows: when the raw materials are fed, the sealing plug 304 is pulled out, the liquid passing pipe 303 is inserted into the raw materials, the transparent mixing pipe 301 is pumped by the air pump 201, the raw materials flow into the transparent mixing pipe 301 under the action of air pressure, the taking amount of the raw materials is monitored by the capacity graduated scale 302, certain water is poured into the heat insulation barrel 1 after the raw materials are fed, the telescopic frame 103 is pulled upwards, the mixing assembly 3 and the control assembly 2 are inserted into the heat insulation barrel 1, the driving rod 104 is inserted into the driving groove 204, the heating pipe 108 is used for heating the water in the heat insulation barrel 1, the raw materials in the transparent mixing pipe 301 are further heated in a water bath, the driving rod 104 is driven by the stirring motor 101 to rotate, the rotating rod 202 is further driven to stir the raw materials in the transparent mixing pipe 301, after a certain period of stirring, the telescopic frame 103 is pulled upwards, the moving handle 305 is used for taking out the control assembly 2 and the mixing assembly 3, when emulsified asphalt is required to be taken, the emulsified asphalt is driven by the rotating handle 205 to rotate the rotating rod 202 and the stirring blade 203, the emulsified asphalt is stirred, the air pump 201 is pulled down, the emulsified asphalt is cooled by the air pump 2 and the air pump is pulled out of the air pump 106, the emulsified asphalt is respectively, the air pump is opened by the air pump 2, the emulsified asphalt is discharged by the air pump 2, the air pump is cleaned by the air pump 106, and the air pump is cleaned by the air pump 201, and the emulsified asphalt is discharged by the air pump 1, and the transparent mixing pipe is completely and the heated by the air.
The foregoing is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, and any modification, equivalent replacement, and improvement of some of the technical features described in the foregoing embodiments are all within the scope of the present utility model.
Claims (5)
1. The utility model provides an emulsified asphalt test device, includes heat preservation bucket (1), control assembly (2) and mixing element (3), its characterized in that: the utility model discloses a heat preservation bucket, including heat preservation bucket (1), heat preservation bucket, including heat preservation bucket, mixing component (1), mixing component (3) bottom runs through the joint and has transparent hybrid tube (301), transparent hybrid tube (301) bottom central authorities run through the joint and have logical liquid pipe (303), transparent hybrid tube (301) outer peripheral face one end joint has capacity scale (302), mixing component (3) upside joint has control assembly (2), control assembly (2) top central authorities run through the joint and have dwang (202), control assembly (2) top one side runs through the joint and has air pump (201), air pump (201) are located transparent hybrid tube (301) top.
2. An emulsified asphalt testing apparatus as set forth in claim 1, wherein: the utility model discloses a thermal insulation barrel, including heat preservation barrel (1), first support frame (107), heat preservation barrel (1) inboard bottom central authorities joint is fixed with second support frame (109), heat preservation barrel (1) inboard top border joint is fixed with first support frame (107), first support frame (107) upper portion border joint has heat preservation pad (105), heat preservation barrel (1) inboard joint is fixed with heating pipe (108), heat preservation barrel (1) outer peripheral face bottom runs through the welding and has drain pipe (106).
3. An emulsified asphalt testing apparatus as set forth in claim 1, wherein: the utility model discloses a thermal insulation barrel, including thermal insulation barrel (1), link (102) are fixed with in outer peripheral face one end joint, link (102) upper end slip joint has expansion bracket (103), expansion bracket (103) top one end joint has agitator motor (101), agitator motor (101) bottom rotation joint has actuating lever (104), actuating lever (104) run through grafting in expansion bracket (103) upside, actuating lever (104) hang in thermal insulation barrel (1) upper portion central authorities.
4. An emulsified asphalt testing apparatus as set forth in claim 3, wherein: the utility model discloses a transparent mixing tube (301) is formed in a rotary rod (202), drive groove (204) has been seted up at rotary rod (202) top central authorities, actuating lever (104) are pegged graft in drive groove (204) inboard, rotary rod (202) outer peripheral face welded fastening has rotation handle (205) and stirring leaf (203), stirring leaf (203) are located control assembly (2) lower part, rotation handle (205) are located control assembly (2) upper portion, rotary rod (202) are located control assembly (2) lower part and peg graft in transparent mixing tube (301) inboard.
5. An emulsified asphalt testing apparatus as set forth in claim 2, wherein: the utility model discloses a liquid mixing device, including mixing subassembly (3), sealing plug (304) is pegged graft in liquid pipe (303), transparent mixing pipe (301) are pegged graft in heat preservation bucket (1) inboard, liquid pipe (303) are pegged graft in second support frame (109) inboard, mixing subassembly (3) border laminating is in first support frame (107) upper portion, remove handle (305) run through and peg graft in control assembly (2) bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323022310.7U CN221038211U (en) | 2023-11-09 | 2023-11-09 | Emulsified asphalt test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323022310.7U CN221038211U (en) | 2023-11-09 | 2023-11-09 | Emulsified asphalt test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221038211U true CN221038211U (en) | 2024-05-28 |
Family
ID=91187557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323022310.7U Active CN221038211U (en) | 2023-11-09 | 2023-11-09 | Emulsified asphalt test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221038211U (en) |
-
2023
- 2023-11-09 CN CN202323022310.7U patent/CN221038211U/en active Active
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