CN115025575A - Dust device that civil construction used - Google Patents
Dust device that civil construction used Download PDFInfo
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- CN115025575A CN115025575A CN202210551228.4A CN202210551228A CN115025575A CN 115025575 A CN115025575 A CN 115025575A CN 202210551228 A CN202210551228 A CN 202210551228A CN 115025575 A CN115025575 A CN 115025575A
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- fixedly connected
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/02—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath
- B01D47/028—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath by directing the gas through a wetted wire mesh or a perforated plate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
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- Chemical Kinetics & Catalysis (AREA)
- Separation Of Particles Using Liquids (AREA)
Abstract
The invention discloses a dust falling device for civil construction, which comprises a trolley body, wherein the front side and the rear side of the upper part of the left end of the trolley body are fixedly connected with supporting rods, the left side of the upper end of each supporting rod is fixedly connected with a handle, the lower part of the left end of the trolley body is fixedly connected with a storage mechanism, the upper end of the storage mechanism is movably provided with an air draft mechanism, the upper end of the trolley body is fixedly connected with a water storage shell, the left side of the upper end of the water storage shell is fixedly connected with a filtering mechanism through bolts, and the right side of the upper end of the water storage shell is fixedly connected with a gun fog machine mechanism. Through the integral structure of the equipment, gas accelerated by the fan can be more fully utilized, the dust settling effect of the integral structure can be greatly improved, liquid can be sprayed for dust settling, and external dust air can be extracted for water filtration dust settling; through the structure that is equipped with filtering mechanism, the dust in the filtration air that can be more abundant.
Description
Technical Field
The invention relates to the technical field of civil construction, in particular to a dust falling device for civil construction.
Background
Civil engineering is a general term for the science and technology of building various land engineering facilities, and refers to both the materials and equipment used and the technical activities of surveying, designing, constructing, maintaining, repairing, etc. performed, and the objects of engineering construction. I.e. various engineering facilities such as houses, roads, railways, pipelines, tunnels, bridges, canals, dams, ports, power stations, airports, ocean platforms, water supply and drainage and protection projects, which are built on or under the ground, on land and directly or indirectly serve human life, production, military affairs and scientific research. Civil engineering refers to engineering entities for surveying, planning, designing, constructing, installing, maintaining and other technical works and completion of the engineering entities, such as buildings, structures, related supporting facilities and the like of various new-built, reconstructed or expanded engineering, in the civil construction process, a large amount of dust is generated, air is seriously polluted, a dust settling device is required to be used for settling dust, but the common dust settling device cannot fully utilize the wind of a fan, so that the dust settling effect of the dust settling device is not strong enough, and therefore the dust settling device for civil construction is provided.
Disclosure of Invention
The invention aims to provide a dust-settling device for civil engineering, which can more fully utilize gas accelerated by a fan, can greatly increase the dust-settling effect of the whole structure, can spray liquid for settling dust, and can extract external dust air for water filtration for settling dust.
The invention discloses a dust-settling device for civil construction, which adopts the technical scheme that the dust-settling device for civil construction comprises a trolley body, wherein the front side and the rear side of the upper part of the left end of the trolley body are fixedly connected with supporting rods, the left side of the upper end of each supporting rod is fixedly connected with a handle, the lower part of the left end of the trolley body is fixedly connected with a storage mechanism, the upper end of the storage mechanism is movably provided with an air draft mechanism, and the upper end of the trolley body is fixedly connected with a water storage shell;
the novel water storage device is characterized in that the left side of the upper end of the water storage shell is fixedly connected with a filtering mechanism through a bolt, the right side of the upper end of the water storage shell is fixedly connected with a fog gun mechanism, the fog gun mechanism is connected with a liquid pump through a pipeline, and a liquid pumping pipe at the lower end of the liquid pump is inserted into an inner cavity of the water storage shell.
As a preferred scheme, the inner cavity of the storage mechanism is provided with a storage cavity, the middle part of the left end of the storage mechanism is provided with a rectangular opening, the middle part of the inner cavity of the storage cavity is connected with a winding shaft through a rotating shaft, the middle part of the winding shaft penetrates through the insertion opening, and the outer side of the upper end of the winding shaft is connected with a rotating handle.
As the preferred scheme, the upper portion of the inner cavity of the air draft mechanism is connected with a fan, the lower portion of the front end and the lower portion of the rear end of the air draft mechanism are fixedly connected with supporting rods, the supporting rods are placed at the upper ends of the supporting rods in a lap joint mode, a connecting air outlet pipe is fixedly connected to the lower portion of the front end of the air draft mechanism in a plug-in mode, the rear end of the connecting air outlet pipe is fixedly sleeved on an air outlet of the air draft mechanism, and a handle groove is formed in the upper portion of the left end of the air draft mechanism.
As the preferred scheme, the fixed grafting in upper end of filtering mechanism has first feed liquor pipe, be equipped with the ooff valve on the first feed liquor pipe, the left end of filtering mechanism is fixed to be pegged graft and is had the breather pipe, the breather pipe outside is equipped with the check valve, filtering mechanism's inner chamber lower part fixedly connected with air guide plate, air guide plate's lower extreme fixedly connected with branch gas strip, air guide plate and horizontal plane have the contained angle of degree, filtering mechanism's inner chamber upper end fixedly connected with backup pad, the upper end fixedly connected with filter layer of backup pad, filtering mechanism's right-hand member upper portion is fixed to be pegged graft and is had the blast pipe, filtering mechanism's right-hand member lower part is fixed to be pegged graft and is had the blow off pipe, be equipped with the ooff valve on the blow off pipe, the lower extreme of breather pipe is located air guide plate's lower extreme left side.
As preferred scheme, big gun fog machine mechanism includes first chamber with higher speed, the post with higher speed, jet head, liquid supply ring, go-between, the chamber is with higher speed to the second and the chamber is with higher speed to the third, open on big gun fog machine mechanism's inner chamber left side has the first chamber with higher speed, the first inner chamber right side outside in chamber with higher speed is through fixed block fixedly connected with go-between, the inner chamber middle part of go-between is connected with the post with higher speed through the fixed block, the chamber is with higher speed to the second that forms between the lateral wall of go-between and the first right side lateral wall in chamber with higher speed, form the chamber with higher speed of third between the lateral wall of the post with higher speed and the inside wall of go-between the ring.
Preferably, the right side of the inner cavity of the connecting ring is fixedly connected with a liquid supply ring, the right end of the liquid supply ring is fixedly connected with air nozzles in an annular array, and the liquid supply ring is connected with a water outlet pipe of the liquid pump.
Preferably, the exhaust pipe is a hose and is communicated with the inner cavity of the first acceleration cavity.
As a preferred scheme, a plurality of round holes are uniformly formed in the upper portion and the lower portion of the supporting plate, a plurality of air distribution strips are arranged, and the air distribution strips are uniformly arranged at the lower end of the air entraining plate.
As the preferred scheme, the winding shaft is wound with a connecting air pipe, and the connecting air pipe is connected with an air outlet pipe and an air pipe.
As the preferred scheme, the water storage shell's upper end right side front side is fixed to be pegged graft and is had the filling opening, the upper end of filling opening and first feed liquor pipe all is pegged graft and is had the sealing plug.
The dust falling device for the civil construction disclosed by the invention has the beneficial effects that:
through the overall structure of equipment, the gas that the utilization fan that can be more abundant accelerates to the dust fall effect of increase overall structure that can also be great not only can spray liquid and carry out the dust fall, but also can extract outside dust air and carry out the water filtration dust fall.
Through the structure that is equipped with filtering mechanism, gaseous from the breather pipe lower extreme blowout, the lower extreme of air guide plate can be followed to the gas that blows out to right side displacement to divide the gas strip to cut apart into a plurality of bubbles to can make the abundant liquid with the filtering mechanism inside of the gaseous abundant contact that blows out, thereby the dust among the filtered air that can be more abundant.
Through the structure that is equipped with big gun fog machine mechanism, blow off the inside that gas after filtering insufflates first acceleration chamber through the blast pipe, gaseous right-hand member that can accelerate chamber and second through the second blows off with higher speed the chamber like this, and the jet-propelled head is located the second and accelerates between chamber and the third with higher speed the chamber, and start the drawing liquid pump, inside liquid injection confession liquid ring that the drawing liquid pump can extract water storage shell, thereby can be to each jet-propelled head blowout liquid, spun liquid is accelerating chamber and third through the second and accelerates chamber spun gas once more when accelerating, thereby can make spun liquid spray the distance farther.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an overall view of the draft mechanism of the present invention;
FIG. 3 is a cross-sectional view of the filter mechanism of the present invention;
FIG. 4 is a cross-sectional view of the storage mechanism of the present invention;
fig. 5 is a cross-sectional view of the mist sprayer mechanism of the invention.
In the figure: the multifunctional trolley comprises a trolley body 1, a supporting rod 2, a handle 3, a storage mechanism 4, a storage cavity 41, a rectangular opening 42, a winding shaft 43, a plug-in port 44, a rotating handle 45, an air draft mechanism 5, a fan 51, an air outlet pipe 52, a supporting rod 6, a filtering mechanism 7, a vent pipe 71, an air guide plate 72, an air distribution strip 73, a supporting plate 74, a filtering layer 75, a first liquid inlet pipe 76, a water storage shell 8, a liquid adding opening 9, a mist blasting machine mechanism 10, a first accelerating cavity 101, an accelerating column 102, a connecting ring 103, a second accelerating cavity 104, a second accelerating cavity 105, a sewage discharge pipe 11, a 12 exhaust pipe, a 13 air jet head, a 14 liquid pump and a 15 liquid supply ring.
Detailed Description
The invention will be further elucidated and described with reference to the embodiments and drawings of the specification:
referring to fig. 1-5, the present invention: a dust fall device for civil construction comprises a trolley body 1, wherein the front side and the rear side of the upper part of the left end of the trolley body 1 are fixedly connected with supporting rods 2, the left side of the upper end of each supporting rod 2 is fixedly connected with a handle 3, the lower part of the left end of the trolley body 1 is fixedly connected with a storage mechanism 4, the upper end of each storage mechanism 4 is movably provided with an air draft mechanism 5, and the upper end of the trolley body 1 is fixedly connected with a water storage shell 8;
the water storage device is characterized in that the left side of the upper end of the water storage shell 8 is fixedly connected with a filtering mechanism 7 through a bolt, the right side of the upper end of the water storage shell 8 is fixedly connected with a mist gun mechanism 10, the mist gun mechanism 10 is connected with a liquid pumping pump 14 through a pipeline, and a liquid pumping pipe at the lower end of the liquid pumping pump 14 is inserted into an inner cavity of the water storage shell 8.
As shown in fig. 4: the inner cavity of the storage mechanism 4 is provided with a storage cavity 41, the middle part of the left end of the storage mechanism 4 is provided with a rectangular opening 42, the middle part of the inner cavity of the storage cavity 41 is connected with a winding shaft 43 through a rotating shaft, the middle part of the winding shaft 43 is provided with an insertion port 44 in a penetrating manner, and the outer side of the upper end of the winding shaft 43 is connected with a rotating handle 45.
As shown in fig. 2: the utility model discloses an air exhaust mechanism 5, including the inner chamber upper portion of air exhaust mechanism 5, fan 51 adopts the current fan in the market, the equal fixedly connected with bracing piece 6 in front and back end lower part of air exhaust mechanism 5, the overlap joint is placed in the upper end of branch 2 to bracing piece 6, the fixed grafting in front end lower part of air exhaust mechanism 5 is connected out tuber pipe 52, connect out the tuber pipe 52 rear end and fixedly cup joint on air outlet of air exhaust mechanism 5, open the left end upper portion of air exhaust mechanism 5 has hand (hold) groove.
As shown in fig. 3: the fixed grafting in upper end of filter mechanism 7 has first feed liquor pipe 76, be equipped with the ooff valve on the first feed liquor pipe 76, the left end of filter mechanism 7 is fixed to be pegged graft and is had breather pipe 71, the breather pipe 71 outside is equipped with the check valve, the inner chamber lower part fixedly connected with air guide plate 72 of filter mechanism 7, the lower extreme fixedly connected with of air guide plate 72 divides gas strip 73, there is 30 degrees contained angles in air guide plate 72 and horizontal plane, the inner chamber upper end fixedly connected with backup pad 74 of filter mechanism 7, the upper end fixedly connected with filter layer 75 of backup pad 74, the fixed grafting in right-hand member upper portion of filter mechanism 7 has blast pipe 12, the fixed grafting in right-hand member lower part of filter mechanism 7 has blow off pipe 11, be equipped with the ooff valve on the blow off pipe 11, the lower extreme of breather pipe 71 is located the lower extreme left side of air guide plate 72.
As shown in fig. 5: the fog gun mechanism 10 comprises a first accelerating cavity 101, an accelerating column 102, a jet head 13, a liquid supply ring 15, a connecting ring 103, a second accelerating cavity 104 and a third accelerating cavity 105, wherein the first accelerating cavity 101 is formed on the left side of an inner cavity of the fog gun mechanism 10, the connecting ring 103 is fixedly connected to the outer side of the right side of the inner cavity of the first accelerating cavity 101 through a fixing block, the accelerating column 102 is connected to the middle of the inner cavity of the connecting ring 103 through the fixing block, the second accelerating cavity 104 is formed between the outer side wall of the connecting ring 103 and the right side wall of the first accelerating cavity 101, the third accelerating cavity 105 is formed between the outer side wall of the accelerating column 102 and the inner side wall of the connecting ring 103, the jet head 13 is positioned between the second accelerating cavity 104 and the third accelerating cavity 105, and a liquid pump 14 is started, the liquid pump 14 can pump liquid in the water storage shell 8 to be injected into the liquid supply ring 15, so that liquid can be sprayed out of each jet head 13, the liquid thus ejected is accelerated again by the gas ejected through the second acceleration chamber 104 and the third acceleration chamber 105, thereby enabling the ejected liquid to be sprayed farther.
As shown in fig. 5: the inner cavity right side fixedly connected with liquid supply ring 15 of go-between 103, the right-hand member of liquid supply ring 15 is annular array fixedly connected with jet head 13, liquid supply ring 15 connects the outlet pipe of drawing liquid pump 14, and jet head 13 can spout liquid, and drawing liquid pump 14 adopts the current pump in the market.
As shown in fig. 1 and 5: the exhaust pipe 12 is a hose, and the exhaust pipe 12 is communicated with an inner cavity of the first acceleration cavity 101.
As shown in fig. 3: the supporting plate 74 is uniformly provided with a plurality of round holes, the air distribution strips 73 are uniformly arranged at the lower end of the air guide plate 72, and the round holes divide air into a plurality of bubbles through the air distribution strips 73 for ventilation, so that blown air can be fully contacted with liquid inside the filtering mechanism 7, and dust in the filtered air can be more fully filtered.
As shown in fig. 1, 2 and 3: the winding shaft 43 is wound with a connecting air pipe, the connecting air pipe is connected with the air outlet pipe 52 and the air pipe 71, and the winding shaft 43 is connected with the air pipe for accommodating and winding.
As shown in fig. 1: a liquid adding port 9 is fixedly inserted in the front side of the right side of the upper end of the water storage shell 8, sealing plugs are inserted in the upper ends of the liquid adding port 9 and the first liquid inlet pipe 76, the liquid adding port 9 injects water into the water storage shell 8, and the first liquid inlet pipe 76 injects water into the filtering mechanism 7.
The principle is as follows: when the dust and air extraction device is used, the air extraction mechanism 5 is lifted manually, the connecting air pipe wound on the outer side of the winding shaft 43 is pulled manually, the connecting air pipe is connected to the air outlet pipe 52 and the air pipe 71, and then the air extraction mechanism 5 is placed in a place where dust is greatly raised, so that dust and air can be extracted;
the extracted dust and air can enter the inside of the filtering mechanism 7, water is injected into the inside of the filtering mechanism 7 through the first liquid inlet pipe 76, the injected water overflows the upper end of the air guide plate 72, the air is blown out from the lower end of the air vent pipe 71, the blown air can move towards the right side along the lower end of the air guide plate 72, and the air is divided into a plurality of bubbles by the air dividing strip 73, so that the blown air can be fully contacted with the liquid in the filtering mechanism 7, the dust in the air can be more fully filtered, and the dirt filtered in the filtering mechanism 7 can be discharged by opening the switch valve on the sewage discharge pipe 11 after filtering for a period of time;
the filtered gas is blown into the first acceleration cavity 101 through the exhaust pipe 12, so that the gas can be blown out through the right ends of the second acceleration cavity 104 and the second acceleration cavity 105, the gas nozzles 13 are positioned between the second acceleration cavity 104 and the third acceleration cavity 105, and the liquid pump 14 is started, the liquid pump 14 can pump the liquid in the water storage shell 8 and inject the liquid into the liquid supply ring 15, so that the liquid can be sprayed out of each gas nozzle 13, and when the gas sprayed out of the gas nozzles passing through the second acceleration cavity 104 and the third acceleration cavity 105 is accelerated again, the spraying distance of the sprayed liquid can be further increased;
and the integrated mechanism uses the back, can dismantle the connecting pipe between play tuber pipe 52 and breather pipe 71, then pegs graft inside interface 44 connecting pipe, then manual transmission winding axle 43 to the connecting pipe is accomodate in the winding, accomodates the back that finishes, then manually places exhaust mechanism 5 in the upper end of depositing mechanism 4, and bracing piece 6 can support and place in branch 2 upper end, thereby makes things convenient for integrated structure's displacement.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. The utility model provides a dust device that civil construction used, includes dolly body (1), its characterized in that: the trolley is characterized in that supporting rods (2) are fixedly connected to the front side and the rear side of the upper portion of the left end of the trolley body (1), a handle (3) is fixedly connected to the left side of the upper end of each supporting rod (2), a storage mechanism (4) is fixedly connected to the lower portion of the left end of the trolley body (1), an air draft mechanism (5) is movably arranged at the upper end of each storage mechanism (4), and a water storage shell (8) is fixedly connected to the upper end of the trolley body (1);
the water storage device is characterized in that a filtering mechanism (7) is fixedly connected to the left side of the upper end of the water storage shell (8) through a bolt, a mist spraying machine mechanism (10) is fixedly connected to the right side of the upper end of the water storage shell (8), a liquid pumping pump (14) is connected to the mist spraying machine mechanism (10) through a pipeline, and a liquid pumping pipe at the lower end of the liquid pumping pump (14) is inserted into an inner cavity of the water storage shell (8).
2. The dust falling device for civil engineering according to claim 1, characterized in that: the utility model discloses a storage mechanism, including storage mechanism (4), the inner chamber of depositing mechanism (4) is opened there is storage chamber (41), the left end middle part of depositing mechanism (4) is opened rectangle mouth (42), the inner chamber middle part of depositing chamber (41) is connected with winding axle (43) through the pivot, the middle part of winding axle (43) is run through and is opened interface (44), the upper end outside of winding axle (43) is connected with rotation hand (45).
3. The dust falling device for civil engineering according to claim 1, characterized in that: the utility model discloses a fan exhaust mechanism, including exhaust mechanism (5), inner chamber upper portion of exhaust mechanism (5) is connected with fan (51), the equal fixedly connected with bracing piece (6) in front and back end lower part of exhaust mechanism (5), the overlap joint is placed in the upper end of branch (2) in bracing piece (6), the fixed grafting in front end lower part of exhaust mechanism (5) is connected out tuber pipe (52), it cup joints on exhaust mechanism (5) air outlet to connect out tuber pipe (52) rear end, open the left end upper portion of exhaust mechanism (5) has hand (hold) groove.
4. The dust falling device for civil engineering according to claim 1, characterized in that: the upper end of the filtering mechanism (7) is fixedly spliced with a first liquid inlet pipe (76), a switch valve is arranged on the first liquid inlet pipe (76), a vent pipe (71) is fixedly spliced at the left end of the filtering mechanism (7), a check valve is arranged on the outer side of the vent pipe (71), an air guide plate (72) is fixedly connected at the lower part of an inner cavity of the filtering mechanism (7), an air distribution strip (73) is fixedly connected at the lower end of the air guide plate (72), an included angle of 30 degrees is formed between the air guide plate (72) and the horizontal plane, a supporting plate (74) is fixedly connected at the upper end of the inner cavity of the filtering mechanism (7), a filtering layer (75) is fixedly connected at the upper end of the supporting plate (74), an exhaust pipe (12) is fixedly spliced at the upper part of the right end of the filtering mechanism (7), a sewage discharge pipe (11) is fixedly spliced at the lower part of the right end of the filtering mechanism (7), and a switch valve is arranged on the sewage discharge pipe (11), the lower end of the vent pipe (71) is positioned on the left side of the lower end of the air guide plate (72).
5. The dust falling device for civil engineering according to claim 1, characterized in that: the fog gun mechanism (10) comprises a first accelerating cavity (101), an accelerating column (102), a gas nozzle (13), a liquid supply ring (15), a connecting ring (103), a second accelerating cavity (104) and a third accelerating cavity (105), wherein the first accelerating cavity (101) is formed in the left side of the inner cavity of the fog gun mechanism (10), the right side of the inner cavity of the first accelerating cavity (101) is connected with the connecting ring (103) through a fixed block, the middle part of the inner cavity of the connecting ring (103) is connected with the accelerating column (102) through the fixed block, the second accelerating cavity (104) is formed between the outer side wall of the connecting ring (103) and the right side wall of the first accelerating cavity (101), and the third accelerating cavity (105) is formed between the outer side wall of the accelerating column (102) and the inner side wall of the connecting ring (103).
6. The dust device of claim 5, characterized in that: the right side of the inner cavity of the connecting ring (103) is fixedly connected with a liquid supply ring (15), the right end of the liquid supply ring (15) is fixedly connected with air nozzles (13) in an annular array, and the liquid supply ring (15) is connected with a water outlet pipe of the liquid pump (14).
7. The dust device of claim 4, characterized in that: the exhaust pipe (12) is a hose, and the exhaust pipe (12) is communicated with the inner cavity of the first acceleration cavity (101).
8. The dust device of claim 4, characterized in that: the air guide plate is characterized in that a plurality of round holes are uniformly formed in the upper portion and the lower portion of the supporting plate (74), a plurality of air distribution strips (73) are arranged, and the air distribution strips (73) are uniformly arranged at the lower end of the air guide plate (72).
9. The dust device of claim 2, characterized in that: the winding shaft (43) is wound with a connecting air pipe, and the connecting air pipe is connected with an air outlet pipe (52) and a vent pipe (71).
10. The dust device of claim 2, characterized in that: a liquid adding opening (9) is fixedly inserted in the front side of the right side of the upper end of the water storage shell (8), and sealing plugs are inserted in the upper ends of the liquid adding opening (9) and the first liquid inlet pipe (76).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210551228.4A CN115025575A (en) | 2022-05-18 | 2022-05-18 | Dust device that civil construction used |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210551228.4A CN115025575A (en) | 2022-05-18 | 2022-05-18 | Dust device that civil construction used |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115025575A true CN115025575A (en) | 2022-09-09 |
Family
ID=83120691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210551228.4A Pending CN115025575A (en) | 2022-05-18 | 2022-05-18 | Dust device that civil construction used |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115025575A (en) |
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2022
- 2022-05-18 CN CN202210551228.4A patent/CN115025575A/en active Pending
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