CN213433755U - Mobile phase removes bubble filtration and prevents siphon storage device convenient to transportation - Google Patents
Mobile phase removes bubble filtration and prevents siphon storage device convenient to transportation Download PDFInfo
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- CN213433755U CN213433755U CN202022353472.9U CN202022353472U CN213433755U CN 213433755 U CN213433755 U CN 213433755U CN 202022353472 U CN202022353472 U CN 202022353472U CN 213433755 U CN213433755 U CN 213433755U
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Abstract
The utility model discloses a convenient-to-transport mobile phase bubble removal filtering anti-siphon storage device, in particular to the field of ion chromatography systems, which comprises a liquid storage bottle, wherein leacheate is stored in the liquid storage bottle, a sealing cover is arranged at the bottleneck at the top of the liquid storage bottle, an air inlet pipe and a liquid outlet pipe are arranged in the sealing cover in a penetrating manner, the top end of the air inlet pipe penetrates through the sealing cover and is connected with an air filter, the bottom end of the air inlet pipe extends into the liquid storage bottle and is positioned above the liquid level of the leacheate, the bottom end of the liquid outlet pipe extends into the liquid storage bottle and is connected with the liquid filter, the liquid filter is arranged at the bottom of the cavity of the liquid storage bottle, and the top end of the; the air filter is filled with alkaline filler which can absorb carbon dioxide in the air. The utility model discloses whole device design is simple with low costs, and the function is comprehensive, solves all unstable factors that ion chromatograph system leacheate stored and the diversion system part.
Description
Technical Field
The utility model relates to an ion chromatographic system field, concretely relates to mobile phase removes bubble filtration and prevents siphon storage device convenient to transportation.
Background
In an ion chromatography system, whether the leacheate is stable or not can greatly affect the stability and accuracy of an analysis result, so that how to effectively store the leacheate and ensure that the leacheate is kept isolated from air to prevent deterioration is a non-negligible part in the ion chromatography. In an ion chromatography flow path system, if the sealing of each part is not tight, leacheate can leak under the action of siphonage, so that instruments, table top skin and the like are corroded, and the problem of preventing the leakage of the flow path is also needed to be solved.
And current leacheate storage system mainly has nitrogen protection, and this scheme can play the contact of keeping apart leacheate and air, prevents rotten effect, but nitrogen gas and partial pressure system cost ratio are higher on the one hand, and the nitrogen gas jar uses in the laboratory and has the potential safety hazard, and on the other hand nitrogen gas pressurization itself can aggravate the weeping problem under the not tight condition of flow path seal.
Therefore, the invention provides the special eluent storage and diversion system with the functions of liquid protection, solution filtration and siphon prevention for the ion chromatograph, which has lower cost and is more comprehensive and effective, so as to make up the existing defects in the industry.
SUMMERY OF THE UTILITY MODEL
For this, the utility model provides a flow removes bubble filtration anti-siphon storage device convenient to transportation mutually, when extracting the leacheate, filter the leacheate through liquid filter, and set up the check valve on the liquid exit tube, liquid output is through bubble filter, air filter filters the air and gets rid of carbon dioxide and guarantee stock solution bottle pressure balance in the entire system, the check valve has prevented that the sealed not tight leacheate that leads to of flow path from revealing behind the pump body, bubble filter holds back the bubble in the leacheate, prevent that the bubble from getting into the pump body and analytic system and the system that causes is unstable, with the problem of solving existence among the prior art.
In order to achieve the above object, the present invention provides the following technical solutions: a convenient-to-transport mobile phase bubble removal filtering anti-siphon storage device comprises a liquid storage bottle, wherein leacheate is stored in the liquid storage bottle, a sealing cover is arranged at a bottle mouth at the top of the liquid storage bottle, an air inlet pipe and a liquid outlet pipe penetrate through the sealing cover, the top end of the air inlet pipe penetrates through the sealing cover and is connected with an air filter, the bottom end of the air inlet pipe extends into the liquid storage bottle and is located above the liquid level of the leacheate, the bottom end of the liquid outlet pipe extends into the liquid storage bottle and is connected with a liquid filter, the liquid filter is arranged at the bottom of a bottle cavity of the liquid storage bottle, and the top end of the liquid outlet pipe penetrates through the sealing;
the air filter is filled with alkaline filler capable of absorbing carbon dioxide in air, and the alkaline filler is fixedly wrapped by a microporous filter membrane.
Further, the liquid storage bottle is made of a polyethylene flexible material.
Further, liquid filter includes liquid filter casing and filter core, the filter core sets up inside liquid filter casing, liquid filter casing bottom sets up inlet and liquid storage bottle and is linked together, liquid filter casing top sets up liquid outlet and liquid exit tube threaded connection.
Further, the top of the bubble filter is provided with a water inlet, the bottom of the bubble filter is provided with a water outlet, the bubble filter is connected with a liquid outlet pipe through the water inlet and the water outlet, and the water outlet is arranged below the liquid level in the bubble filter.
Further, the sealing cover is in threaded connection with the opening of the liquid storage bottle, and the air inlet pipe is fixedly connected with the sealing cover.
Further, the liquid exit tube divide into upper segment exit tube and hypomere exit tube, the upper segment exit tube sets up in hypomere exit tube top, the hypomere exit tube sets up in the stock solution bottle and top and sealed lid fixed connection, hypomere exit tube top runs through sealed lid upper surface, the upper segment exit tube is located the stock solution bottle outside and one end and passes through pipeline quick-operation joint and can dismantle with the hypomere exit tube and be connected, the check valve and bubble filter are connected gradually to the upper segment exit tube other end.
Further, air cleaner includes shell, import, upper cover, the otter board that admits air, annular pressure plate, the import has been seted up to the shell upper surface, the upper cover set up in the inlet and with import threaded connection, the fixed handle that is equipped with in upper cover top, the otter board that admits air inlays to be located the upper cover center and runs through the upper cover, annular pressure plate is fixed to be set up in the upper cover lower surface that the otter board outside corresponds that admits air, annular pressure plate and upper cover lower fixed surface are connected, the alkaline filler of millipore filtration membrane and inside splendid attire is placed in the inside cavity of shell, the air advances the pipe top and runs through the shell and is linked.
Further, the shell is set to be drum-shaped, a closed ring is fixedly arranged at the inlet edge of the upper surface of the inner cavity of the shell and is in contact with the microporous filter membrane below the closed ring, the lower surface of the closed ring is set to be an arc-shaped curved surface, and the bottom end face of the annular pressure plate is located below the bottom end face of the closed ring.
Furthermore, the middle part of the air inlet mesh plate is provided with a jack in a penetrating manner, a push rod is arranged in the jack and is arranged in the jack in a sliding manner, the bottom end of the push rod is in contact with the upper surface of the microporous filter membrane, the top end of the push rod extends to the upper part of the air inlet mesh plate and is fixedly connected with a baffle, the diameter of the baffle is larger than that of the jack, the surface of the outer wall below the middle part of the push rod is coated with a reminding coating layer, and the color of.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. when the utility model is used for extracting the leacheate, the leacheate is filtered through the liquid filter, the one-way valve is arranged on the liquid outlet pipe, the liquid is output through the bubble filter, the air filter in the whole system filters the air to remove carbon dioxide and ensure the pressure balance in the liquid storage bottle, the one-way valve prevents the leakage of the leacheate caused by the untight sealing of the flow path behind the pump body, the bubble filter intercepts bubbles in the leacheate, and the instability of the system caused by the bubbles entering the pump body and the analysis system is prevented;
2. the utility model has simple design, low cost and comprehensive functions, and solves all unstable factors of the eluent storage and diversion system part of the ion chromatograph system;
3. the utility model discloses an insert the ejector pin in the otter board that admits air, the outer wall surface below the ejector pin middle part scribbles reminds the dope layer, and after the water inflation is met to basicity packing, can expose red or yellow warning dope layer with the ejector pin jack-up, people just can know to change millipore filtration and basicity and pack, play fine warning effect, guarantee getting rid of carbon dioxide.
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. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.
Fig. 1 is a schematic view of the overall structure provided by the present invention;
FIG. 2 is a schematic structural view of an air filter provided by the present invention;
FIG. 3 is a cross-sectional view of an air filter according to the present invention;
fig. 4 is a schematic structural view of a portion a in fig. 3 according to the present invention;
fig. 5 is a schematic view of the structure of the push rod provided by the present invention;
in the figure: the device comprises a liquid storage bottle 1, a sealing cover 2, an air inlet pipe 3, a liquid outlet pipe 4, an air filter 5, a shell 51, an inlet 52, an upper cover 53, an air inlet mesh plate 54, an annular pressing plate 55, a handle 56, a sealing ring 57, a liquid filter 6, a liquid filter shell 61, a filter element 62, a check valve 7, a bubble filter 8, alkaline filler 9, a microporous filter membrane 10, a pipeline quick joint 11, a jack 12, a push rod 13, a baffle 14 and a reminding coating layer 15.
Detailed Description
The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to the attached drawing 1 of the specification, the anti-siphon storage device with the mobile phase bubble removal filtering function and the convenient transportation function comprises a liquid storage bottle 1, leacheate is stored in the liquid storage bottle 1, a sealing cover 2 is arranged at a bottle mouth at the top of the liquid storage bottle 1, an air inlet pipe 3 and a liquid outlet pipe 4 penetrate through the sealing cover 2, the top end of the air inlet pipe 3 penetrates through the sealing cover 2 and is connected with an air filter 5, the bottom end of the air inlet pipe 3 extends into the liquid storage bottle 1 and is located above the liquid level of the leacheate, the bottom end of the liquid outlet pipe 4 extends into the liquid storage bottle 1 and is connected with a liquid filter 6, the liquid filter 6 is arranged at the bottom of a bottle cavity of the liquid storage bottle 1, and the top end of the liquid outlet pipe 4 penetrates through the sealing cover;
the air filter 5 is filled with alkaline filler 9 capable of absorbing carbon dioxide in the air, and the alkaline filler 9 is fixedly wrapped by a microporous filter membrane 10.
Further, the liquid storage bottle 1 is made of a polyethylene flexible material.
Further, liquid filter 6 includes liquid filter casing 61 and filter core 62, filter core 62 sets up inside liquid filter casing 61, liquid filter casing 61 bottom sets up inlet and stock solution bottle 1 and is linked together, liquid filter casing 61 top sets up outlet and liquid outlet and 4 threaded connection of liquid exit tube.
Further, 8 tops of bubble filters set up the water inlet and the bottom sets up the delivery port, bubble filters 8 pass through the water inlet and the delivery port is connected with liquid exit tube 4, and the delivery port sets up below 8 inside liquid levels of bubble filters.
The implementation scenario is specifically as follows: in the ion chromatography system, when the leacheate needs to be supplied, a pump body in the system is opened, the one-way valve 7 is opened, the pump body is used for extracting the leacheate through the liquid outlet pipe 4, at the moment, the one-way valve 7 is opened to enable the liquid to circulate when only the liquid absorption power is supplied from the outside, otherwise, the liquid cannot flow, and the leacheate caused by the fact that a flow path is not tightly sealed after the pump is prevented from leaking;
the leacheate is firstly filtered by the filter element 62 in the liquid filter 6 and then flows through the bubble filter 8 (the bubble filter 8 needs to be kept vertical when in use), so that the instability of the system caused by the fact that bubbles enter a pump body and an analysis system is prevented;
when the leacheate is extracted, external air sequentially passes through the air filter 5 and the air inlet pipe 3 to enter the liquid storage bottle 1, the air filter 5 filters the air, carbon dioxide is removed, and the pressure balance in the liquid storage bottle 1 is ensured;
the whole device is simple in design, low in cost and comprehensive in function, and all unstable factors of the eluent storage and flow guide system part of the ion chromatograph system are solved.
Referring to the attached figure 1 of the specification, the sealing cover 2 is in threaded connection with the bottle mouth of the liquid storage bottle 1, and the air inlet pipe 3 is fixedly connected with the sealing cover 2.
Further, liquid exit tube 4 divide into upper segment exit tube and hypomere exit tube, the upper segment exit tube sets up in hypomere exit tube top, the hypomere exit tube sets up in stock solution bottle 1 and top and sealed lid 2 fixed connection, sealed lid 2 upper surface is run through on the hypomere exit tube top, the upper segment exit tube is located 1 outside of stock solution bottle and one end and passes through pipeline quick-operation joint 11 and can dismantle with the hypomere exit tube and be connected, the check valve 7 and bubble filter 8 are connected gradually to the upper segment exit tube other end.
The implementation scenario is specifically as follows: when the leacheate needs to be stored in the liquid storage bottle 1, the operation can be carried out by opening the sealing cover 2, the sealing cover 2 is screwed to realize the sealing of the liquid storage bottle 1 after the leacheate is stored, the air inlet pipe 3 is fixedly connected with the sealing cover 2, and the phenomenon that the air inlet pipe 3 is separately connected with the sealing cover 2 to influence the sealing can be avoided;
and when sealed lid 2 need take down, separate hypomere exit tube and upper segment exit tube through pipeline quick-operation joint 11, and hypomere exit tube and sealed lid 2 are fixed as an organic whole, sealed lid 2 convenient rotation operation this moment, sealed lid 2 drives hypomere exit tube and the liquid filter 6 rotation of bottom when rotatory, sealed lid 2 takes down the back, because hypomere exit tube and the liquid outlet of liquid filter 6 are threaded connection, consequently liquid filter 6 can be followed and pulled down from hypomere exit tube, convenient change or maintenance.
Referring to the attached drawings 2-4 of the specification, the air filter 5 includes a housing 51, an inlet 52, an upper cover 53, an air inlet mesh plate 54, and an annular pressure plate 55, the inlet 52 is formed on the upper surface of the housing 51, the upper cover 53 is disposed in the inlet 52 and is in threaded connection with the inlet 52, a handle 56 is fixedly disposed on the top of the upper cover 53, the air inlet mesh plate 54 is embedded in the center of the upper cover 53 and penetrates through the upper cover 53, the annular pressure plate 55 is fixedly disposed on the lower surface of the upper cover 53 corresponding to the outer side of the air inlet mesh plate 54, the annular pressure plate 55 is fixedly connected with the lower surface of the upper cover 53, the microfiltration membrane 10 and the alkaline filler 9 contained in the microfiltration membrane are disposed in an inner cavity of the housing 51, and the.
Further, the shell 51 is drum-shaped, a closed ring 57 is fixedly arranged at the edge of the inlet 52 on the upper surface of the inner cavity of the shell 51, the closed ring 57 is in contact with the microporous filter membrane 10 below the closed ring 57, the lower surface of the closed ring 57 is arc-shaped, and the bottom end face of the annular pressure plate 55 is located below the bottom end face of the closed ring 57.
The implementation scenario is specifically as follows: before the air filter 5 is used, the handle 56 is rotated to open the upper cover 53, then the microfiltration membrane 10 filled with the alkaline filler 9 is placed in the inner cavity of the shell 51, the upper cover 53 is covered after being flattened, the annular pressure plate 55 is driven to move downwards by the upper cover 53 in the rotating and downward moving process, the annular pressure plate 55 can flatten the microfiltration membrane 10 filled with the alkaline filler 9 again and fill the whole inner cavity of the shell 51, and at the moment, the height difference between the sealing ring 57 and the annular pressure plate 55 can enable the upper surface of the corresponding microfiltration membrane 10 to form an upward slope, so that the entering air can be prevented from sliding away from a gap between the microfiltration membrane 10 and the shell 51, the air can be ensured to be fully contacted with the alkaline filler 9 in the microfiltration membrane 10, and carbon dioxide can be removed to the maximum extent;
when the device is used, external air enters the inner cavity of the shell 51 through the air inlet mesh plate 54 and contacts with the microporous filter membrane 10 and the alkaline filler 9 in the inner cavity, the alkaline filler 9 adsorbs carbon dioxide in the air, the alkaline filler 9 can be strong-base ion exchange fiber or alkali metal aluminosilicate, and the air from which the carbon dioxide is removed enters the liquid storage bottle 1 through the air inlet pipe 3.
Referring to the attached drawings 3 and 5 in the specification, the middle of the air inlet screen 54 is provided with a jack 12 in a penetrating manner, a push rod 13 is arranged in the jack 12, the push rod 13 is arranged in the jack 12 in a sliding manner, the bottom end of the push rod 13 is in contact with the upper surface of the microporous filter membrane 10, the top end of the push rod 13 extends to the position above the air inlet screen 54 and is fixedly connected with a baffle 14, the diameter of the baffle 14 is larger than that of the jack 12, the push rod 13 can be prevented from falling off, the outer wall surface below the middle of the push rod 13 is coated with a reminding coating layer.
The implementation scenario is specifically as follows: after the air filter 5 is used for a long time, due to reasons such as high air humidity and the like, the alkaline filler 9 can adsorb moisture in the air or volatile moisture from leacheate, at the moment, the alkaline filler 9 can absorb water and expand, before the air filter 5 is used, after the microporous filter membrane 10 and the alkaline filler 9 are placed, the ejector rod 13 can be inserted into the jack 12, the bottom end of the ejector rod 13 is in contact with the upper surface of the microporous filter membrane 10, the reminding coating layer 15 at the moment can be shielded, after the alkaline filler 9 expands when meeting water, the ejector rod 13 can be jacked up, the reminding coating layer 15 can be gradually seen, when people see the red or yellow reminding coating layer 15, people can know that the microporous filter membrane 10 and the alkaline filler 9 can be replaced, a good reminding effect is achieved, removal of carbon dioxide is guaranteed, and the color of the reminding coating layer 15 is not limited to red or yellow, can be adjusted into other colors which can play a role of obvious prompt according to the requirement.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (9)
1. The utility model provides a mobile phase removes bubble filtration anti-siphon storage device convenient to transportation, includes stock solution bottle (1), the interior leacheate that has stored in stock solution bottle (1), its characterized in that: a sealing cover (2) is arranged at a bottleneck at the top of the liquid storage bottle (1), an air inlet pipe (3) and a liquid outlet pipe (4) penetrate through the sealing cover (2), the top end of the air inlet pipe (3) penetrates through the sealing cover (2) and is connected with an air filter (5), the bottom end of the air inlet pipe (3) extends into the liquid storage bottle (1) and is positioned above the liquid level of leacheate, the bottom end of the liquid outlet pipe (4) extends into the liquid storage bottle (1) and is connected with a liquid filter (6), the liquid filter (6) is arranged at the bottom of a bottle cavity of the liquid storage bottle (1), and the top end of the liquid outlet pipe (4) penetrates through the sealing cover (2) and is sequentially connected with a one-way valve (7); the air filter (5) is filled with alkaline filler (9) capable of absorbing carbon dioxide in the air, and the alkaline filler (9) is fixedly wrapped by a microporous filter membrane (10).
2. The mobile phase debubbling, filtration and anti-siphon storage device for easy transportation according to claim 1, wherein: the liquid storage bottle (1) is made of polyethylene flexible materials.
3. The mobile phase debubbling, filtration and anti-siphon storage device for easy transportation according to claim 1, wherein: liquid filter (6) are including liquid filtration casing (61) and filter core (62), filter core (62) set up inside liquid filtration casing (61), liquid filters casing (61) bottom and sets up inlet and stock solution bottle (1) and be linked together, liquid filters casing (61) top and sets up liquid outlet and liquid exit tube (4) threaded connection.
4. The mobile phase debubbling, filtration and anti-siphon storage device for easy transportation according to claim 1, wherein: the top of the bubble filter (8) is provided with a water inlet, the bottom of the bubble filter is provided with a water outlet, the bubble filter (8) is connected with the liquid outlet pipe (4) through the water inlet and the water outlet, and the water outlet is arranged below the liquid level in the bubble filter (8).
5. The mobile phase debubbling, filtration and anti-siphon storage device for easy transportation according to claim 1, wherein: the sealing cover (2) is in threaded connection with the bottle opening of the liquid storage bottle (1), and the air inlet pipe (3) is fixedly connected with the sealing cover (2).
6. The mobile phase debubbling, filtration and anti-siphon storage device for easy transportation according to claim 1, wherein: liquid exit tube (4) divide into upper segment exit tube and hypomere exit tube, the upper segment exit tube sets up in hypomere exit tube top, the hypomere exit tube sets up in stock solution bottle (1) and top and sealed lid (2) fixed connection, hypomere exit tube top runs through sealed lid (2) upper surface, the upper segment exit tube is located stock solution bottle (1) outside and one end and passes through pipeline quick-operation joint (11) and can dismantle with the hypomere exit tube and be connected, check valve (7) and bubble filter (8) are connected gradually to the upper segment exit tube other end.
7. The mobile phase debubbling, filtration and anti-siphon storage device for easy transportation according to claim 1, wherein: the air filter (5) comprises a shell (51), an inlet (52), an upper cover (53), an air inlet mesh plate (54) and an annular pressure plate (55), the upper surface of the shell (51) is provided with an inlet (52), the upper cover (53) is arranged in the inlet (52) and is in threaded connection with the inlet (52), a handle (56) is fixedly arranged at the top of the upper cover (53), the air inlet mesh plate (54) is embedded in the center of the upper cover (53) and penetrates through the upper cover (53), the annular pressure plate (55) is fixedly arranged on the lower surface of the upper cover (53) corresponding to the outer side of the air inlet screen plate (54), the annular pressure plate (55) is fixedly connected with the lower surface of the upper cover (53), the microporous filter membrane (10) and the alkaline filler (9) contained in the microporous filter membrane are placed in the cavity in the shell (51), the top end of the air inlet pipe (3) penetrates through the shell (51) and is communicated with the inner cavity of the shell.
8. A transportable, mobile phase debubbling, filtration, anti-siphon storage device as claimed in claim 7, wherein: the improved microporous membrane filter is characterized in that the shell (51) is drum-shaped, a closed ring (57) is fixedly arranged at the edge of an inlet (52) on the upper surface of the inner cavity of the shell (51), the closed ring (57) is in contact with a microporous filter membrane (10) below the closed ring (57), the lower surface of the closed ring (57) is arc-shaped curved surface, and the bottom end face of the annular pressing plate (55) is located below the bottom end face of the closed ring (57).
9. A transportable, mobile phase debubbling, filtration, anti-siphon storage device as claimed in claim 7, wherein: the utility model discloses a filter screen plate, including air inlet screen plate (54), jack (12) run through in the middle part of air inlet screen plate (54), be equipped with ejector pin (13) in jack (12), ejector pin (13) slide to set up in jack (12), ejector pin (13) bottom contacts with microfiltration membrane (10) upper surface, ejector pin (13) top extends to air inlet screen plate (54) top and fixed connection baffle (14), baffle (14) diameter is greater than jack (12) diameter, outer wall surface below ejector pin (13) middle part scribbles reminds dope layer (15), it is red or yellow to remind dope layer (15) colour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022353472.9U CN213433755U (en) | 2020-10-21 | 2020-10-21 | Mobile phase removes bubble filtration and prevents siphon storage device convenient to transportation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022353472.9U CN213433755U (en) | 2020-10-21 | 2020-10-21 | Mobile phase removes bubble filtration and prevents siphon storage device convenient to transportation |
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| Publication Number | Publication Date |
|---|---|
| CN213433755U true CN213433755U (en) | 2021-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022353472.9U Active CN213433755U (en) | 2020-10-21 | 2020-10-21 | Mobile phase removes bubble filtration and prevents siphon storage device convenient to transportation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213433755U (en) |
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2020
- 2020-10-21 CN CN202022353472.9U patent/CN213433755U/en active Active
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Effective date of registration: 20221129 Address after: 266000 No. 47, Yuting Road, Zhaogezhuang community building materials Industrial Park, Liuting street, Chengyang District, Qingdao, Shandong Province Patentee after: Qingdao Minghua Environmental Technology Co.,Ltd. Address before: 266000 building b-4-5, Qingdao International Clothing Industry City, No.17 Jiujiang Road, Tongji New Economic Zone, Jimo District, Qingdao City, Shandong Province Patentee before: QINGDAO LUHAI PHOTOELECTRIC TECHNOLOGY CO.,LTD. |
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