CN208625577U - A kind of domestic intelligent sweeper - Google Patents
A kind of domestic intelligent sweeper Download PDFInfo
- Publication number
- CN208625577U CN208625577U CN201820274022.0U CN201820274022U CN208625577U CN 208625577 U CN208625577 U CN 208625577U CN 201820274022 U CN201820274022 U CN 201820274022U CN 208625577 U CN208625577 U CN 208625577U
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- China
- Prior art keywords
- dust
- roller
- chassis
- collecting box
- outer housing
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- 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
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- 241001417527 Pempheridae Species 0.000 title claims abstract description 31
- 230000007246 mechanism Effects 0.000 claims abstract description 73
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 70
- 238000004140 cleaning Methods 0.000 claims abstract description 35
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 238000009423 ventilation Methods 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims 1
- 239000000428 dust Substances 0.000 description 28
- 239000010410 layer Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000010865 sewage Substances 0.000 description 5
- 238000010408 sweeping Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 206010065954 Stubbornness Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Abstract
The utility model discloses a kind of domestic intelligent sweepers, it is related to sweeper technical field, the utility model includes outer housing and the chassis for being connected to outer housing bottom, the bottom on chassis or so end is respectively arranged with universal wheel and rear roller, it has been set gradually from left to right on chassis positioned at the intracorporal watering mechanism of shell, cleaning agency, dust-collecting mechanism moving up and down, with the dust-collecting box of dust-collecting mechanism cooperation, water collection agencies moving up and down, with the collecting box of water collection agencies cooperation, watering mechanism bottom is provided with several sparge pipes through chassis, the port A and port B cooperated respectively with dust-collecting mechanism and water collection agencies is offered on chassis, water collection agencies include roller and the spongy layer for being set in cylinder surface, roller both ends are connected with the electric pushrod that roller can be driven to move up and down in port B by ball bearing, in the utility model Have the advantages that structure is simple, easy to use, multiple functional.
Description
Technical field
The utility model relates to sweeper technical fields, more particularly to a kind of domestic intelligent sweeper.
Background technique
Intelligent sweeping machine, that is, intelligent sweeping robot, it can pass through oneself chip operation, MPU judgement processing
And sensor identification induction, to carry out the new-generation household appliance of automatic cleaning.It is returned comprising automatic cleaning, intelligence
Fill, dust induction identification etc. a series of functions the full person of collection.It is rapidly updating and changing at present, gradually matured,
It slowly enters every household.
Compared with traditional sweeper, intelligent sweeping machine is not need manually to be cleaned during the entire process of cleaning
, it understands oneself identification and judges route, is analyzed by the microprocessor of oneself, so that the area that needs are cleaned all carries out
It cleans, rubbish after cleaning can all put into the dust-collecting box of loom tail portion when sweeping, and the later period manually carries out emptying rubbish can
It is substantially with, existing intelligent sweeping machine to clean based on dust, just for spot more obstinate on ground such as greasy dirt
It is difficult to clean up, it is also necessary to manually increase the amount of labour to family for ground Orly one time using wet mop.
Therefore above-mentioned technical problem how is solved, there is very much realistic meaning to those skilled in the art.
Utility model content
The purpose of this utility model is that: in order to solve the skill that existing sweeper does not clean up the stain on ground
Art problem, the utility model provide a kind of domestic intelligent sweeper.
The utility model specifically uses following technical scheme to achieve the goals above:
A kind of domestic intelligent sweeper, including outer housing and the chassis for being connected to outer housing bottom, the bottom on chassis or so
End is respectively arranged with universal wheel and rear roller, has been set gradually from left to right on chassis positioned at the intracorporal watering mechanism of shell, clearly
Sweep mechanism, dust-collecting mechanism moving up and down, the dust-collecting box cooperated with dust-collecting mechanism, water collection agencies moving up and down and collection
The collecting box of water dispenser structure cooperation, watering mechanism bottom is provided with several sparge pipes through chassis, offered on chassis respectively with
The port A and port B of dust-collecting mechanism and water collection agencies cooperation, water collection agencies include roller and the sponge for being set in cylinder surface
Layer, roller both ends are connected with the electric pushrod that roller can be driven to move up and down in port B by ball bearing.
Further, the watering mechanism includes the water tank being arranged on chassis, is provided on water tank through outer
The water injection pipe of shell, the bottom of storage tank are provided with the solenoid valve with sparge pipe cooperation.
Further, the cleaning agency is one in front and one in back arranged two altogether, and cleaning agency includes driving motor, driving
Motor is connected with the hairbrush below chassis by rotation axis, and the hairbrush of front side is rotated clockwise in overlook direction, rear side
Hairbrush rotates counterclockwise in overlook direction.
Further, the dust-collecting mechanism includes roller A and several bristles that the surface roller A is arranged in, and the two of roller A
End is connected with the electric pushrod A that roller A can be driven to move up and down in port A, one end connection of roller A by ball bearing A
Have driving motor A, be provided on chassis above dust-collecting mechanism every cover, electric pushrod A is both connected to the inner top every cover,
The one side wall of dust-collecting box is provided with hair dryer every cover, offers several ventilation holes every cover and hair dryer contact site.
Further, shedding mechanism is provided on the dust-collecting box, shedding mechanism includes that top is arranged outside dust-collecting box
Stepper motor, stepper motor is connected with screw rod, nut seat is provided on screw rod, nut seat is connected with by connecting rod to be collected
The push plate slided in dirt box, dust-collecting box top offer the guide runner with connecting rod cooperation, and outer housing is located at dust-collecting box discharging
The one side wall of position is provided with switch gate, and the button of control switch door is provided on outer housing.
Further, be provided in the outer housing with watering mechanism, cleaning agency, dust-collecting mechanism, water collection agencies and
The processor that shedding mechanism is electrically connected, processor control chip by built-in PLC and are electrically connected with remote controler.
Further, the chassis periphery is provided with a circle anti-collision rubber layer.
Working principle: when only needing to clear up dust, remote controller to processor issue signal, control dust-collecting mechanism to
Lower movement and with ground face contact, and be contracted in water collection agencies in outer housing, when sweeper works, in two cleaning agencies two
A hairbrush first gathers together dust, then again turns over dust by the bristle on roller A in the dust-collecting mechanism at rear and is swept to
In dust-collecting box.When needing to clear up ground stain, remote controller issues signal to processor, and control dust-collecting mechanism is upward
Move and be contracted in outer housing, at the same control water collection agencies move down and with ground face contact, sweeper work when, open electricity
Magnet valve sprays the water in water tank on the ground by sparge pipe, and for sweeper in moving process, the hairbrush of cleaning agency is continuous
The ground for speckling with water is scrubbed, the roller in the water collection agencies at cleaning agency rear with spongy layer is by the dirt after scrub
Water absorption is fallen, and sewage is thrown in collecting box under the centrifugal action of roller.
The beneficial effects of the utility model are as follows:
1, it is provided with dust-collecting mechanism moving up and down and water collection agencies in sweeper, when only needing to clear up dust, makes
Water collection agencies are contracted in outer housing, and are moved down dust-collecting mechanism and worked as needs with ground face contact, beginning dust cleaning work
Clear up ground stain when, be contracted in dust-collecting mechanism in outer housing, and make water collection agencies move down with ground face contact, sweep
When ground machine moving process, watering mechanism sprays water to ground, and cleaning agency scrubs the ground to get wet, then cleaning agency
Roller in the water collection agencies at rear with spongy layer falls the sewage absorption after scrub, and will under the centrifugal action of roller
Sewage is thrown in collecting box.This sweeper can effectively clear ground more stubbornness by the cooperation of watering mechanism and water collection agencies
Spot, and dust cleaning or spot scrub according to circumstances can be carried out to ground, flexible operation is multiple functional, strong applicability.
2, watering mechanism includes the water tank being arranged on chassis, and the water injection pipe through outer housing is provided on water tank,
The bottom of storage tank is provided with the solenoid valve with sparge pipe cooperation, opens solenoid valve, the water in water tank can be made to pass through sparge pipe
Ground is sprayed to, when not having water in water tank, water directly can be added by water injection pipe, it is easy to operate.
3, cleaning agency is one in front and one in back arranged two altogether, and cleaning agency includes driving motor, and driving motor passes through rotation
Axis connection has the hairbrush below chassis, and the hairbrush of front side is rotated clockwise in overlook direction, and the hairbrush of rear side is in vertical view side
To rotation counterclockwise, when the hairbrush below two cleaning agencies rotates inward, dust can be swept at intermediate rear, facilitate dust
Mechanism is collected processing to dust.
4, dust-collecting mechanism includes roller A and several bristles that the surface roller A is arranged in, and the both ends of roller A pass through ball axis
It holds A and is connected with the electric pushrod A that roller A can be driven to move up and down in port A, one end of roller A is connected with driving motor A,
Be provided on chassis above dust-collecting mechanism every cover, electric pushrod A is both connected to the inner top every cover, every cover far from dust
The one side wall of box is provided with hair dryer, offers several ventilation holes every cover and hair dryer contact site, needs using dust-collecting mechanism
When, control electric pushrod A pushes down on roller A, makes bristle and ground face contact on roller A, and starting driving motor A makes roller
A rotation, while dust being turned under hair dryer effect and is swept in dust-collecting box, easy to control, dust cleaning effect is good.
5, shedding mechanism is provided on dust-collecting box, shedding mechanism includes the stepper motor that top outside dust-collecting box is arranged in, step
It it is connected with screw rod into motor, is provided with nut seat on screw rod, nut seat is connected with by connecting rod and can be slided in dust-collecting box
Push plate, dust-collecting box top offer the guide runner with connecting rod cooperation, and outer housing is located at the one side wall of position at dust-collecting box discharging
It is provided with switch gate, the button of control switch door is provided on outer housing, when the dust sanitary fill in dust-collecting box is excessive, is pressed
Lower button turns on the switch door, and starting stepper motor moves nut seat on screw rod, while nut seat drives push plate to push away dust
It is more intelligent can clear up away the dust of accumulation in the case where removing dust-collecting box to switch gate.
6, it is provided in outer housing and electrically connects with watering mechanism, cleaning agency, dust-collecting mechanism, water collection agencies and shedding mechanism
The processor connect, processor control chip by built-in PLC and are electrically connected with remote controler, sweep the floor by the way that remote controler is i.e. controllable
The operation of each functional entity in machine, use direction, intelligence degree are high.
7, chassis periphery is provided with a circle anti-collision rubber layer, improves the service life to sweeper.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of domestic intelligent sweeper of the utility model；
Fig. 2 is the schematic cross-sectional view in Fig. 1 at A-A；
Fig. 3 is a kind of outer surface structure schematic diagram of domestic intelligent sweeper of the utility model；
Fig. 4 is the structural schematic diagram of water collection agencies；
Fig. 5 is the structural schematic diagram of dust-collecting mechanism.
Appended drawing reference: 1- outer housing, the chassis 2-, 3- universal wheel, 4- rear roller, 5- watering mechanism, 5.1- water tank, 5.2-
Solenoid valve, 5.3- water injection pipe, 6- cleaning agency, 6.1- driving motor, 6.2- hairbrush, 7- dust-collecting mechanism, 7.1- roller A, 7.2-
Bristle, 7.3- ball bearing A, 7.4- electric pushrod A, 8- dust-collecting box, 9- water collection agencies, 9.1- roller, 9.2- spongy layer, 9.3-
Ball bearing, 9.4- electric pushrod, 10- collecting box, 11- sparge pipe, 12- port A, 13- port B, 14- driving motor A, 15-
Every cover, 15.1- ventilation hole, 16- hair dryer, 17- shedding mechanism, 17.1- stepper motor, 17.2- screw rod, 17.3- nut seat,
17.4- push plate, 18- switch gate, 19- button, 20- processor, 21- anti-collision rubber layer.
Specific embodiment
In order to which those skilled in the art better understand the utility model, with reference to the accompanying drawing with following embodiment to this
Utility model is described in further detail.
Embodiment 1
As shown in Fig. 1 to 5, the present embodiment provides a kind of domestic intelligent sweeper, including outer housing 1 and it is connected to outer housing
The chassis 2 of 1 bottom, the bottom on chassis 2 or so, which is held, is respectively arranged with universal wheel 3 and rear roller 4, on chassis 2 from left to right successively
It is provided with the watering mechanism 5 being located in outer housing 1, cleaning agency 6, dust-collecting mechanism moving up and down 7, matches with dust-collecting mechanism 7
The dust-collecting box 8 of conjunction, water collection agencies moving up and down 9, the collecting box 10 cooperated with water collection agencies 9, the setting of 5 bottom of watering mechanism
There are several sparge pipes 11 through chassis 2, the port cooperated respectively with dust-collecting mechanism 7 and water collection agencies 9 is offered on chassis 2
A12 and port B13, water collection agencies 9 include roller 9.1 and the spongy layer 9.2 for being set in 9.1 surface of roller, and 9.1 both ends of roller are logical
It crosses ball bearing 9.3 and is connected with the electric pushrod 9.4 that roller 9.1 can be driven to move up and down in port B13.
Dust-collecting mechanism moving up and down and water collection agencies are provided in the present embodiment, in sweeper, when only needing to clear up
It when dust, is contracted in water collection agencies in outer housing, and moves down dust-collecting mechanism and ground face contact, beginning dust fettler
Make, when needing to clear up ground stain, be contracted in dust-collecting mechanism in outer housing, and moves down water collection agencies and ground
Face contact, when sweeper moving process, watering mechanism sprays water to ground, and cleaning agency scrubs the ground to get wet, so
The roller in the water collection agencies at cleaning agency rear with spongy layer falls the sewage absorption after scrub afterwards, and roller from
Sewage is thrown in collecting box under heart effect.This sweeper can effectively clear ground by the cooperation of watering mechanism and water collection agencies
More obstinate spot, and dust cleaning or spot scrub according to circumstances can be carried out to ground, flexible operation is multiple functional,
Strong applicability.
Embodiment 2
As shown in Figure 1, the present embodiment is to be further optimized on the basis of embodiment 1, and specifically, the watering
Mechanism 5 includes the water tank 5.1 being arranged on chassis 2, and the water injection pipe 5.3 through outer housing 1, storage are provided on water tank 5.1
5.1 bottom of water tank is provided with the solenoid valve 5.2 cooperated with sparge pipe 11.
In the present embodiment, solenoid valve is opened, the water in water tank can be made to spray to ground by sparge pipe, when in water tank
When not having water, water directly can be added by water injection pipe, it is easy to operate.
Embodiment 3
As shown in Figure 1, the present embodiment is to be further optimized on the basis of embodiment 1, and specifically, the cleaning
Mechanism 6 is one in front and one in back arranged two altogether, and cleaning agency 6 includes driving motor 6.1, and driving motor 6.1 passes through rotation axis connection
There is the hairbrush 6.2 for being located at 2 lower section of chassis, the hairbrush 6.2 of front side is rotated clockwise in overlook direction, and the hairbrush 6.2 of rear side is being bowed
Apparent direction rotates counterclockwise.
In the present embodiment, when the hairbrush below two cleaning agencies rotates inward, dust can be gathered and sweep to intermediate rear
Place, facilitates the dust-collecting mechanism at cleaning agency rear to be collected processing to dust.
Embodiment 4
As described in figures 1 and 5, the present embodiment is to be further optimized on the basis of embodiment 1, specifically, described
Dust-collecting mechanism 7 includes roller A7.1 and several bristles 7.2 that the surface roller A7.1 is arranged in, and the both ends of roller A7.1 pass through ball
Bearing A7.3 is connected with the electric pushrod A7.4 that roller A7.1 can be driven to move up and down in port A12, one end of roller A7.1
Be connected with driving motor A14, be provided on chassis 2 above dust-collecting mechanism 7 every cover 15, electric pushrod A7.4 is both connected to
Every the inner top of cover 15, the one side wall of dust-collecting box 8 is provided with hair dryer 16 every cover 15, every cover 15 and 16 contact portion of hair dryer
Position offers several ventilation holes 15.1.
In the present embodiment, when needing using dust-collecting mechanism, control electric pushrod A pushes down on roller A, makes on roller A
Bristle and ground face contact, starting driving motor A rotate roller A, while dust being turned over be swept to dust under hair dryer effect
Easy to control in box, dust cleaning effect is good.
Embodiment 5
As shown in Fig. 1 to 3, the present embodiment is to be further optimized on the basis of embodiment 1, specifically, described
Shedding mechanism 17 is provided on dust-collecting box 8, shedding mechanism 17 includes the stepper motor 17.1 that the outer top of dust-collecting box 8 is arranged in, step
It is connected with screw rod 17.2 into motor 17.1, nut seat 17.3 is provided on screw rod 17.2, nut seat 17.3 is connected by connecting rod
Have the push plate 17.4 that can be slided in dust-collecting box 8, offered at the top of dust-collecting box 8 with connecting rod cooperation guide runner, outer housing 1
The one side wall of position is provided with switch gate 18 at 8 discharging of dust-collecting box, and the button of control switch door 18 is provided on outer housing 1
19。
In the present embodiment, when the dust sanitary fill in dust-collecting box is excessive, door is turned on the switch by lower button, starts stepping
Motor moves nut seat on screw rod, while nut seat drives push plate to push dust to switch gate, is not removing dust-collecting box
In the case of the dust of accumulation can be cleared up away, it is more intelligent.
Embodiment 6
As shown in Figure 1, the present embodiment is to be further optimized on the basis of embodiment 1, and specifically, the shell
The place being electrically connected with watering mechanism 5, cleaning agency 6, dust-collecting mechanism 7, water collection agencies 9 and shedding mechanism 17 is provided in body 1
Device 20 is managed, processor 20 controls chip by built-in PLC and is electrically connected with remote controler.
It is the operation of each functional entity in controllable sweeper, use direction, intelligence by remote controler in the present embodiment
Change degree is high.
Embodiment 7
As illustrated in fig. 1 and 2, the present embodiment is to be further optimized on the basis of embodiment 1, specifically, described
2 periphery of chassis is provided with a circle anti-collision rubber layer 21, improves the service life to sweeper.
The above, the only preferred embodiment of the utility model, are not intended to limit the utility model, the utility model
Scope of patent protection be subject to claims, it is equivalent made by all specifications and accompanying drawing content with the utility model
Structure change similarly should be included in the protection scope of the utility model.
Claims (7)
1. a kind of domestic intelligent sweeper, including outer housing (1) and it is connected to the chassis (2) of outer housing (1) bottom, chassis (2)
Bottom or so end be respectively arranged with universal wheel (3) and rear roller (4), which is characterized in that chassis is from left to right successively set on (2)
It is equipped with watering mechanism (5), cleaning agency (6), dust-collecting mechanism moving up and down (7) and the precipitron being located in outer housing (1)
Dust-collecting box (8), water collection agencies moving up and down (9), the collecting box (10) with water collection agencies (9) cooperation of structure (7) cooperation, spill
Water dispenser structure (5) bottom is provided with several sparge pipes (11) through chassis (2), offered on chassis (2) respectively with dust-collecting mechanism
(7) include roller (9.1) and be set in rolling with the port A (12) and port B (13) of water collection agencies (9) cooperation, water collection agencies (9)
The spongy layer (9.2) on cylinder (9.1) surface, roller (9.1) both ends are connected with by ball bearing (9.3) can drive roller (9.1)
The electric pushrod (9.4) moved up and down in port B (13).
2. domestic intelligent sweeper according to claim 1, which is characterized in that the watering mechanism (5) includes setting
Water tank (5.1) on chassis (2) is provided with the water injection pipe (5.3) through outer housing (1), water tank on water tank (5.1)
(5.1) bottom is provided with the solenoid valve (5.2) with sparge pipe (11) cooperation.
3. domestic intelligent sweeper according to claim 2, which is characterized in that the cleaning agency (6) is one in front and one in back
Two are arranged altogether, cleaning agency (6) includes driving motor (6.1), and driving motor (6.1) is connected with by rotation axis the bottom of positioned at
The hairbrush (6.2) of hairbrush (6.2) below disk (2), front side is rotated clockwise in overlook direction, and the hairbrush (6.2) of rear side is being bowed
Apparent direction rotates counterclockwise.
4. domestic intelligent sweeper according to claim 3, which is characterized in that the dust-collecting mechanism (7) includes roller A
(7.1) and setting is in several bristles (7.2) on roller A (7.1) surface, and the both ends of roller A (7.1) pass through ball bearing A (7.3)
It is connected with the electric pushrod A (7.4) that roller A (7.1) can be driven to move up and down in port A (12), one end of roller A (7.1)
Be connected with driving motor A (14), be provided on chassis (2) above dust-collecting mechanism (7) every cover (15), electric pushrod A
(7.4) it is both connected to the inner top every cover (15), the one side wall of dust-collecting box (8) is provided with hair dryer (16) every cover (15),
Several ventilation holes (15.1) are offered every cover (15) and hair dryer (16) contact site.
5. domestic intelligent sweeper according to claim 4, which is characterized in that be provided with and unload on the dust-collecting box (8)
Expect mechanism (17), shedding mechanism (17) include setting dust-collecting box (8) outside top stepper motor (17.1), stepper motor
(17.1) it is connected with screw rod (17.2), is provided on screw rod (17.2) nut seat (17.3), nut seat (17.3) passes through connecting rod
It is connected with the push plate (17.4) that can be slided in dust-collecting box (8), the slide guide with connecting rod cooperation is offered at the top of dust-collecting box (8)
Slot, the one side wall that outer housing (1) is located at position at dust-collecting box (8) discharging are provided with switch gate (18), and outer housing is provided on (1)
The button (19) of control switch door (18).
6. domestic intelligent sweeper according to claim 5, which is characterized in that be provided in the outer housing (1) with
The processor that watering mechanism (5), cleaning agency (6), dust-collecting mechanism (7), water collection agencies (9) and shedding mechanism (17) are electrically connected
(20), processor (20) controls chip by built-in PLC and is electrically connected with remote controler.
7. according to claim 1 to domestic intelligent sweeper described in any claim in 6, which is characterized in that the bottom
Disk (2) periphery is provided with a circle anti-collision rubber layer (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820274022.0U CN208625577U (en) | 2018-02-27 | 2018-02-27 | A kind of domestic intelligent sweeper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820274022.0U CN208625577U (en) | 2018-02-27 | 2018-02-27 | A kind of domestic intelligent sweeper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208625577U true CN208625577U (en) | 2019-03-22 |
Family
ID=65729863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820274022.0U Expired - Fee Related CN208625577U (en) | 2018-02-27 | 2018-02-27 | A kind of domestic intelligent sweeper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208625577U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111449575A (en) * | 2020-04-22 | 2020-07-28 | 陈志湘 | Gas filtering and dirt absorbing machine for stomatology department |
-
2018
- 2018-02-27 CN CN201820274022.0U patent/CN208625577U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111449575A (en) * | 2020-04-22 | 2020-07-28 | 陈志湘 | Gas filtering and dirt absorbing machine for stomatology department |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20190322 |