CN209006269U - A kind of pure washing spray device - Google Patents

A kind of pure washing spray device Download PDF

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Publication number
CN209006269U
CN209006269U CN201821598399.8U CN201821598399U CN209006269U CN 209006269 U CN209006269 U CN 209006269U CN 201821598399 U CN201821598399 U CN 201821598399U CN 209006269 U CN209006269 U CN 209006269U
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CN
China
Prior art keywords
water
pipe
water pump
water tank
pure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201821598399.8U
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Chinese (zh)
Inventor
朱正坤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianjin Dongfanglong Machinery Equipment Co Ltd
Original Assignee
Tianjin Dongfanglong Machinery Equipment Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tianjin Dongfanglong Machinery Equipment Co Ltd filed Critical Tianjin Dongfanglong Machinery Equipment Co Ltd
Priority to CN201821598399.8U priority Critical patent/CN209006269U/en
Application granted granted Critical
Publication of CN209006269U publication Critical patent/CN209006269U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of pure washing spray devices, including frame, the lower surface of the frame inner sidewall is fixedly installed with the water tank of upper surface opening, the left side of the water tank is connected with pipe sleeve a, the inner wall of the pipe sleeve a is socketed with water inlet pipe a, one end of water inlet pipe a passes through pipe sleeve a and extends to inside water tank, and the other end of water inlet pipe a is connected with the water inlet of water pump a;Workpiece is placed on filter plate by worker, starting water pump a enters water pump a in outlet pipe a by the pure water in water inlet pipe a extraction water tank, spray operation is carried out to workpiece surface via spray head ejection into distributive pipe, the pure water of spray falls into water tank by filter plate and is extracted again by water pump a, filter plate falls the impurity of workpiece surface, the reuse of pure water in water tank is reached, so as to avoid the waste of water resource, the random row for avoiding pure water, which leaves about, causes excess surface water, brings convenience 1 to the work of worker.

Description

A kind of pure washing spray device
Technical field
The utility model belongs to pure water washing and spraying technical field, and in particular to a kind of pure washing spray device.
Background technique
Pure water refers to water free from foreign meter, says from academic angle, and pure water also known as high purity water refer to that chemical purity is high Water, main application is in fields such as biology, chemical, metallurgy, aerospace, electric power, but it is quite high to water quality purity requirement, institute To be normally applied most common or electronics industry, pure water is often used to carry out workpiece during workpiece electrophoretic painting Washing sprays operation to ensure the cleaning of workpiece surface.
Original pure washing spray device pure water after spraying to workpiece is directly discharged to earth's surface, causes water resource Waste, increase cleaning cost, pure water is discharged into ground and causes excess surface water, makes troubles to the work of worker.
Utility model content
It is mentioned above in the background art to solve the purpose of this utility model is to provide a kind of pure washing spray device Original pure washing spray device pure water after spraying to workpiece is directly discharged to earth's surface, causes the waste of water resource, Cleaning cost is increased, pure water is discharged into ground and causes excess surface water, the problem of making troubles to the work of worker.
To achieve the above object, the utility model provides the following technical solutions: a kind of pure washing spray device, including frame Frame, the lower surface of the frame inner sidewall are fixedly installed with the water tank of upper surface opening, the left side clamping of the water tank There is pipe sleeve a, the inner wall of the pipe sleeve a is socketed with water inlet pipe a, and one end of the water inlet pipe a passes through pipe sleeve a and extends in water tank The other end in portion, the water inlet pipe a is connected with the water inlet of water pump a, and the water pump a and external power supply are electrically connected, described Water pump a is fixedly mounted on the left side of water tank by mounting base a, and the water outlet of the water pump a is connected with one end of outlet pipe a Logical, the other end of the outlet pipe a is connected with distributive pipe, and the outer surface of the outlet pipe a is socketed with pipe sleeve b, the pipe sleeve b It is connected to the left side of support plate;
The upper surface of the support plate is fixedly connected with the upper surface of frame inner sidewall, the lower surface setting of the distributive pipe There are several spray heads, the right side of the water tank is connected with pipe sleeve c, and the inner wall of the pipe sleeve c is socketed with devil liquor recovery pipe a, One end of the devil liquor recovery pipe a is connected with the water inlet of water pump b, and the water pump b and external power supply are electrically connected, the water Pump b is fixedly mounted on the right side of water tank, one end phase of the water outlet and devil liquor recovery pipe b of the water pump b by mounting base b Connection, the other end of the devil liquor recovery pipe b are connected with the water inlet of water purification machine ontology, the water purification machine ontology and external electricity Source is electrically connected, and the water purification machine ontology is fixedly mounted on the lower surface of frame inner sidewall, the water outlet of the water purification machine ontology It is connected with one end of water inlet pipe b, the other end of the water inlet pipe b is connected with the water inlet of water pump c, the water pump c and outer Connect power supply electric connection;
The water pump c is fixedly mounted on the right side of frame inner sidewall by mounting base c, the water outlet of the water pump c with One end of outlet pipe b is connected, and the other end of the outlet pipe b passes through the opening that pipe sleeve d extends to water tank upper surface, institute The left side that pipe sleeve d is connected to fixed plate is stated, the lower surface of the fixed plate is fixedly connected with the upper surface of water tank, the storage The front and back of water tank offers channel, and slide assemblies, the one end at the slide assemblies back side are connected in the channel It is fixedly connected with the front of pull ring, described positive one end of slide assemblies is fixedly connected with the back side of trapezoidal fixture block, described trapezoidal The front of fixture block is bonded with the inner sidewall of trapezoidal card slot, and the trapezoidal card slot is provided with the front and back of filter plate rack, Filter plate is provided on the filter plate rack, the upper surface of the filter plate rack and the lower surface of annular weather board are solid Fixed connection.
Preferably, the slide assemblies are mainly made of slide bar, sliding sleeve and spring, and the outer surface of the slide bar is socketed with bullet Spring and sliding sleeve, the sliding sleeve are connected to the inner sidewall in channel, one end of the slide bar front and back respectively with the front of pull ring Be fixedly connected with the back side of trapezoidal fixture block, one end of the front and back of the spring respectively with the front of sliding sleeve and trapezoidal fixture block The back side be fixedly connected.
Preferably, the pure water water surface is located at pipe sleeve a and pipe sleeve c or less in the water tank.
Preferably, the upper surface of the distributive pipe is fixedly connected with the bottom end of two reinforcing rods respectively, and two reinforcing rods Top be fixedly connected with the upper surface of frame inner sidewall.
Preferably, the front and back of the annular weather board offers long stripes through hole.
Preferably, the outlet pipe b is located inside annular weather board far from one end of water pump c.
Compared with prior art, the utility model has the beneficial effects that workpiece is placed on filter plate by worker, start water A is pumped, is entered in outlet pipe a so that water pump a extracts the pure water in water tank by water inlet pipe a, into distributive pipe via spray head It sprays and spray operation is carried out to workpiece surface, the pure water of spray is fallen into water tank by filter plate to be taken out again by water pump a It takes, filter plate falls the impurity of workpiece surface, when repeatedly extracting the decline of pure water quality, stops water pump a job control water pump b Start with water pump c, the waste liquid that water pump a is extracted in water tank enters water purification machine body interior and purified, by after purification Water re-enters into water tank by the extraction of water pump c, to reach the reuse of pure water in water tank, to avoid The waste of water resource, the random row for avoiding pure water, which leaves about, causes excess surface water, brings convenience to the work of worker.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model;
Fig. 2 is the structural schematic diagram of the utility model water tank left view section;
Fig. 3 is the structural schematic diagram of the utility model annular weather board;
Fig. 4 is the structural schematic diagram amplified at A in Fig. 2;
In figure: 1, frame;2, water tank;3, water inlet pipe a;4, water pump a;5, outlet pipe a;6, support plate;7, distributive pipe;8, Spray head;9, devil liquor recovery pipe a;10, water pump b;11, devil liquor recovery pipe b;12, water purification machine ontology;13, water inlet pipe b;14, water pump c; 15, outlet pipe b;16, channel;17, slide assemblies;171, slide bar;172, sliding sleeve;173, spring;18, trapezoidal fixture block;19, trapezoidal Card slot;20, filter plate rack;21, filter plate;22, annular weather board;23, reinforcing rod.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-4 is please referred to, the utility model provides a kind of technical solution: a kind of pure washing spray device, including frame 1, The lower surface of 1 inner sidewall of frame is fixedly installed with the water tank 2 of upper surface opening, and the left side of water tank 2 is connected with pipe sleeve a, The inner wall of pipe sleeve a is socketed with water inlet pipe a3, and one end of water inlet pipe a3 passes through pipe sleeve a and extends to inside water tank 2, water inlet pipe a3's The other end is connected with the water inlet of water pump a4, and water pump a4 and external power supply are electrically connected, and water pump a4 passes through the fixed peace of mounting base a Mounted in the left side of water tank 2, the water outlet of water pump a4 is connected with one end of outlet pipe a5, the other end of outlet pipe a5 with point Water pipe 7 is connected, and the outer surface of outlet pipe a5 is socketed with pipe sleeve b, and pipe sleeve b is connected to the left side of support plate 6;
The upper surface of support plate 6 is fixedly connected with the upper surface of 1 inner sidewall of frame, if the lower surface of distributive pipe 7 is provided with Dry spray head 8, the right side of water tank 2 are connected with pipe sleeve c, and the inner wall of pipe sleeve c is socketed with devil liquor recovery pipe a9, devil liquor recovery pipe One end of a9 is connected with the water inlet of water pump b10, and water pump b10 and external power supply are electrically connected, and water pump b10 passes through mounting base b It is fixedly mounted on the right side of water tank 2, the water outlet of water pump b10 is connected with one end of devil liquor recovery pipe b11, devil liquor recovery The other end of pipe b11 is connected with the water inlet of water purification machine ontology 12, and water purification machine ontology 12 and external power supply are electrically connected, pure water Machine ontology 12 is fixedly mounted on the lower surface of 1 inner sidewall of frame, one end phase of the water outlet and water inlet pipe b13 of water purification machine ontology 12 Connection, the other end of water inlet pipe b13 are connected with the water inlet of water pump c14, and water pump c14 and external power supply are electrically connected;
Water pump c14 is fixedly mounted on the right side of 1 inner sidewall of frame, the water outlet of water pump c14 and water outlet by mounting base c One end of pipe b15 is connected, and the other end of outlet pipe b15 passes through the opening that pipe sleeve d extends to 2 upper surface of water tank, pipe sleeve d Be connected to the left side of fixed plate, the lower surface of fixed plate is fixedly connected with the upper surface of water tank 2, water tank 2 front and The back side offers channel 16, and slide assemblies 17, the one end at 17 back side of slide assemblies and the front of pull ring are connected in channel 16 It is fixedly connected, the positive one end of slide assemblies 17 is fixedly connected with the back side of trapezoidal fixture block 18, front and the ladder of trapezoidal fixture block 18 The inner sidewall of shape card slot 19 is bonded, and trapezoidal card slot 19 is provided with the front and back of filter plate rack 20, filter plate rack Filter plate 21 is provided on 20, the upper surface of filter plate rack 20 is fixedly connected with the lower surface of annular weather board 22.
In the present embodiment, the model of water pump a4, water pump b10 and water pump c14 are JH014, by the way that water pump a4, worker is arranged Can by water pump a4 by water inlet pipe a3 extract water tank 2 in pure water enter in outlet pipe a5, into distributive pipe 7 via The ejection of spray head 8 carries out spray operation to workpiece, by the way that water pump b10 is arranged, when pure water quality declines in water tank 2, and Gong Renke With start water pump b10 by devil liquor recovery pipe a9 by devil liquor recovery pipe b11 enter in water purification machine ontology 12 carry out waste water it is pure It is turned into industry, by the way that water pump c14 is arranged, worker is allowed to extract in water purification machine ontology 12 water after purification again by water pump c14 It is secondary to enter in water tank 2, it ensure that the repetitive cycling of water resource uses.
In the present embodiment, water purification machine ontology 12 is to carry out purified treatment to water quality using multi-stage filter, so as to reduce Strong electrolyte in water quality, the service life of workpiece can be extended by carrying out spray operation using pure water, by the way that water purification machine sheet is arranged Body 12 can carry out the pure water in water tank 2 repeating to purify using, avoid the waste of water resource.
In the present embodiment, by setting slide bar 171, sliding sleeve 172 and spring 173 so that need to filter plate 21 into When row disassembly cleaning, pull two pull rings that two pull rings are located remotely from each other respectively, so that two pull rings drive two respectively A slide bar 171 is located remotely from each other, and then two trapezoidal fixture blocks 18 is driven to be detached from two trapezoidal card slots 19 respectively, and then worker is inserted with hand Annular weather board 22 is lifted into the long stripes through hole on annular weather board 22 and upwards, and then drives filter plate rack 20 upward It moves, facilitates the disassembly cleaning work to filter plate 21, the setting of sliding sleeve 172 is so that slide bar 171 moves more in sliding sleeve 172 Add stabilization, the setting of two reinforcing rods 23 plays the role of a reinforcement support to distributive pipe 7, so that carrying out spray operation When, distributive pipe 7 is more stable when pure water enters ejection in spray head 8 by distributive pipe 7, by the way that long stripes through hole is arranged, so that Hand can be inserted into long stripes through hole by worker, so as to drive filter plate rack 20 to moving up by annular weather board 22 It is dynamic, and then filter plate rack 20 can be taken out and filter plate 21 is cleared up, so that being purified by water purification machine ontology 12 Pure water afterwards can be entered accurately in water tank 2 by filter plate 21, avoid pure water overflow water tank 2 outside cause it is pure The waste of water can carry out the pure water in water tank 2 repeating to purify using, avoid water by the way that water purification machine ontology 12 is arranged The waste of resource.
Further, slide assemblies 17 are mainly made of slide bar 171, sliding sleeve 172 and spring 173, the outer surface of slide bar 171 It is socketed with spring 173 and sliding sleeve 172, sliding sleeve 172 is connected to the inner sidewall in channel 16, one end point of 171 front and back of slide bar Be not fixedly connected with the back side in the front of pull ring and trapezoidal fixture block 18, one end of the front and back of spring 173 respectively with sliding sleeve 172 front is fixedly connected with the back side of trapezoidal fixture block 18.
In the present embodiment, by setting slide bar 171, sliding sleeve 172 and spring 173, so that needing to carry out filter plate 21 When disassembly cleaning, pull two pull rings that two pull rings are located remotely from each other respectively, so that two pull rings drive two respectively Slide bar 171 is located remotely from each other, and then two trapezoidal fixture blocks 18 is driven to be detached from two trapezoidal card slots 19 respectively, and then worker is injected with hand Long stripes through hole on annular weather board 22 simultaneously lifts annular weather board 22 upwards, and then drives filter plate rack 20 to moving up Dynamic, the setting of sliding sleeve 172 is so that the movement in sliding sleeve 172 of slide bar 171 is more stable.
Further, the pure water water surface is located at pipe sleeve a and pipe sleeve c or less in water tank 2.
In the present embodiment, avoid pure water in water tank 2 that pure water is excessively caused to overflow water tank 2 by pipe sleeve a and pipe sleeve c, It ensure that the good of 2 ambient enviroment of water tank.
Further, the upper surface of distributive pipe 7 is fixedly connected with the bottom end of two reinforcing rods 23 respectively, and two reinforcing rods 23 top is fixedly connected with the upper surface of 1 inner sidewall of frame.
In the present embodiment, the setting of two reinforcing rods 23 plays the role of a reinforcement support to distributive pipe 7, so that When carrying out spray operation, it is more stable that pure water enters distributive pipe 7 when spraying in spray head 8 by distributive pipe 7.
Further, the front and back of annular weather board 22 offers long stripes through hole.
In the present embodiment, by setting long stripes through hole, hand is inserted into long stripes through hole by worker, so as to To drive filter plate rack 20 to move up by annular weather board 22, and then filter plate rack 20 can be taken out to mistake Filter plate 21 is cleared up.
Further, outlet pipe b15 is located inside annular weather board 22 far from one end of water pump c14.
In the present embodiment, allow by water purification machine ontology 12 purify after pure water accurately by filter plate 21 into Enter into water tank 2, avoids pure water and overflow the waste for causing pure water outside water tank 2.
The working principle and process for using of the utility model: after the utility model installs, workpiece is placed on filtering On plate 21, start water pump a4, entered in outlet pipe a5 so that water pump a4 extracts the pure water in water tank 2 by water inlet pipe a3, It is sprayed into distributive pipe 7 via spray head 8 and spray operation is carried out to workpiece surface, the pure water of spray is fallen by the filtering of filter plate 21 It is extracted again in water tank 2 by water pump a4, filter plate 21 filters out the impurity of workpiece surface, declines when repeatedly extracting pure water quality When, stop water pump a4 job control water pump b10 and water pump c14 starting, the waste liquid that water pump a4 is extracted in water tank 2 enters pure water It is purified inside machine ontology 12, is re-entered into water tank 2 by water after purification by the extraction of water pump c14, thus The reuse for having reached pure water in water tank 2 pulls two when impurity excessively needs to dismantle cleaning on filter plate 21 respectively Pull ring is located remotely from each other, and then drives two trapezoidal fixture blocks 18 to be detached from trapezoidal card slot 19 respectively by two slide bars 171, is then passed through Long stripes through hole lifts annular weather board 22 upwards, and then filter plate rack 20 is driven to move up, so as to filtering Plate 21 carries out prune job.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (6)

1. a kind of pure washing spray device, including frame (1), it is characterised in that: the lower surface of frame (1) inner sidewall is fixed The water tank (2) of upper surface opening is installed, the left side of the water tank (2) is connected with pipe sleeve a, the inner wall of the pipe sleeve a It is socketed with water inlet pipe a (3), one end of the water inlet pipe a (3) passes through pipe sleeve a and extends to water tank (2) inside, the water inlet pipe a (3) the other end is connected with the water inlet of water pump a (4), and the water pump a (4) and external power supply are electrically connected, the water pump a (4) left side of water tank (2), water outlet and outlet pipe a (5) of the water pump a (4) are fixedly mounted on by mounting base a One end is connected, and the other end of the outlet pipe a (5) is connected with distributive pipe (7), the outer surface socket of the outlet pipe a (5) There are pipe sleeve b, the pipe sleeve b to be connected to the left side of support plate (6);
The upper surface of the support plate (6) is fixedly connected with the upper surface of frame (1) inner sidewall, the following table of the distributive pipe (7) Face is provided with several spray heads (8), and the right side of the water tank (2) is connected with pipe sleeve c, and the inner wall of the pipe sleeve c is socketed with One end of devil liquor recovery pipe a (9), the devil liquor recovery pipe a (9) are connected with the water inlet of water pump b (10), the water pump b (10) it is electrically connected with external power supply, the water pump b (10) is fixedly mounted on the right side of water tank (2), institute by mounting base b The water outlet for stating water pump b (10) is connected with one end of devil liquor recovery pipe b (11), the other end of the devil liquor recovery pipe b (11) It is connected with the water inlet of water purification machine ontology (12), the water purification machine ontology (12) and external power supply are electrically connected, the pure water Machine ontology (12) is fixedly mounted on the lower surface of frame (1) inner sidewall, the water outlet and water inlet pipe b of the water purification machine ontology (12) (13) one end is connected, and the other end of the water inlet pipe b (13) is connected with the water inlet of water pump c (14), the water pump c (14) it is electrically connected with external power supply;
The water pump c (14) is fixedly mounted on the right side of frame (1) inner sidewall by mounting base c, and the water pump c (14) goes out The mouth of a river is connected with the one end of outlet pipe b (15), and the other end of the outlet pipe b (15) passes through pipe sleeve d and extends to water tank (2) The opening of upper surface, the pipe sleeve d are connected to the left side of fixed plate, lower surface and water tank (2) of the fixed plate Upper surface is fixedly connected, and the front and back of the water tank (2) offers channel (16), is connected in the channel (16) One end of slide assemblies (17), slide assemblies (17) back side is fixedly connected with the front of pull ring, the slide assemblies (17) Positive one end is fixedly connected with the back side of trapezoidal fixture block (18), front and trapezoidal card slot (19) of the trapezoidal fixture block (18) Inner sidewall fitting, the trapezoidal card slot (19) are provided with the front and back of filter plate rack (20), and the filter plate is placed It is provided on frame (20) filter plate (21), the lower surface of the upper surface of the filter plate rack (20) and annular weather board (22) It is fixedly connected.
2. a kind of pure washing spray device according to claim 1, it is characterised in that: the slide assemblies (17) mainly by Slide bar (171), sliding sleeve (172) and spring (173) composition, the outer surface of the slide bar (171) is socketed with spring (173) and sliding sleeve (172), the sliding sleeve (172) is connected to the inner sidewall of channel (16), one end of slide bar (171) front and back respectively with Pull ring front be fixedly connected with the back side of trapezoidal fixture block (18), one end of the front and back of the spring (173) respectively with The front of sliding sleeve (172) is fixedly connected with the back side of trapezoidal fixture block (18).
3. a kind of pure washing spray device according to claim 1, it is characterised in that: the interior pure water water of water tank (2) Face is located at pipe sleeve a and pipe sleeve c or less.
4. a kind of pure washing spray device according to claim 1, it is characterised in that: the upper surface of the distributive pipe (7) Be fixedly connected respectively with the bottom end of two reinforcing rods (23), and the top of two reinforcing rods (23) with frame (1) inner sidewall Upper surface is fixedly connected.
5. a kind of pure washing spray device according to claim 1, it is characterised in that: the annular weather board (22) is just Face and the back side offer long stripes through hole.
6. a kind of pure washing spray device according to claim 1, it is characterised in that: the outlet pipe b (15) is far from water The one end for pumping c (14) is located at annular weather board (22) inside.
CN201821598399.8U 2018-09-29 2018-09-29 A kind of pure washing spray device Expired - Fee Related CN209006269U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821598399.8U CN209006269U (en) 2018-09-29 2018-09-29 A kind of pure washing spray device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821598399.8U CN209006269U (en) 2018-09-29 2018-09-29 A kind of pure washing spray device

Publications (1)

Publication Number Publication Date
CN209006269U true CN209006269U (en) 2019-06-21

Family

ID=66833052

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201821598399.8U Expired - Fee Related CN209006269U (en) 2018-09-29 2018-09-29 A kind of pure washing spray device

Country Status (1)

Country Link
CN (1) CN209006269U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110756489A (en) * 2019-11-05 2020-02-07 徐州富沃电动车有限公司 Electric motor car accessory belt cleaning device
CN114405625A (en) * 2022-01-07 2022-04-29 江西富牛生态农业发展有限公司 A extraction element for preparing ampelopsis grossedentata

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110756489A (en) * 2019-11-05 2020-02-07 徐州富沃电动车有限公司 Electric motor car accessory belt cleaning device
CN114405625A (en) * 2022-01-07 2022-04-29 江西富牛生态农业发展有限公司 A extraction element for preparing ampelopsis grossedentata

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20190621

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CF01 Termination of patent right due to non-payment of annual fee