CN210917167U - Novel environmental road cleaning device - Google Patents

Novel environmental road cleaning device Download PDF

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Publication number
CN210917167U
CN210917167U CN201921461795.0U CN201921461795U CN210917167U CN 210917167 U CN210917167 U CN 210917167U CN 201921461795 U CN201921461795 U CN 201921461795U CN 210917167 U CN210917167 U CN 210917167U
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CN
China
Prior art keywords
gear pump
shell
vertical
rotating shaft
box body
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Expired - Fee Related
Application number
CN201921461795.0U
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Chinese (zh)
Inventor
陈艳
闫浩
唐文宝
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Shangqiu Institute of Technology
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Shangqiu Institute of Technology
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Filing date
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Priority to CN201921461795.0U priority Critical patent/CN210917167U/en
Application granted granted Critical
Publication of CN210917167U publication Critical patent/CN210917167U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

A novel ring art road cleaning device comprises a shell, wherein a gear pump is fixedly arranged on one side of the middle in the shell, the lower end of an air inlet of the gear pump is fixedly connected with a horizontal internally hollow box body and communicated with the inner part, a vertical first electric telescopic rod with a downward movable end is arranged at the four corners of the bottom surface of the shell, a roller is fixedly arranged at the movable end of the first electric telescopic rod, a controller is fixedly arranged on one side of the top surface of the shell, and the first electric telescopic rod, the gear pump and a power device are respectively connected with a power supply and the controller. The cleaning is carried out while moving, the time and the labor are saved, and the practicability is strong.

Description

Novel environmental road cleaning device
Technical Field
The utility model belongs to the clean field of road, specifically speaking are novel it is clean to encircle art road device.
Background
The environmental art is green art and science, is harmonious and lasting art and science, and belongs to the environmental art category of city planning, city design, building design, indoor design, city sculpture, mural painting, small building and the like; people more and more support green trip now, and the pavement and the bicycle way in city also increase gradually, but now to the cleanness on pavement and bicycle way mostly sanitation workman with the broom clean, work load is big, and can only understand the great rubbish article on road surface, and the gum sediment or some dust, leaf etc. that bond on the road surface are difficult to clean totally, also can't wash the top surface, thereby influence urban road's pleasing to the eye, cause not good influence to the environment in city.
SUMMERY OF THE UTILITY MODEL
The utility model provides a novel ring skill road is clean device for solve the defect among the prior art.
The utility model discloses a following technical scheme realizes:
a novel ring art road cleaning device comprises a shell, a gear pump is fixedly installed on one side of the middle in the shell, an output shaft of the gear pump is horizontal, an air inlet of the gear pump faces downwards, the lower end of an air inlet of the gear pump is fixedly connected with a horizontal hollow box body and communicated with the interior of the box body, the back surface and the front surface of the box body are respectively fixedly connected with inner walls corresponding to the shell, a vertical air inlet is formed in one side, away from the gear pump, of the bottom surface of the box body, a bearing at the outer end of the air inlet is connected with a vertical hollow second rotating shaft, a vertical second through hole is formed in the middle of the bottom surface of the box body, the lower end of the second rotating shaft penetrates through the second through hole and is located below the shell, a power device for driving the second rotating shaft to rotate is arranged in the shell, a plurality of scraping blades are arranged on the periphery of the lower portion of the second rotating, the lower extreme of doctor-bar is sharp-pointed portion, and the bottom surface four corners department of casing installs vertical expansion end first electric telescopic handle down, and first electric telescopic handle's expansion end fixed mounting gyro wheel, the top surface one side fixed mounting controller of casing, first electric telescopic handle, gear pump, power device are connected with power, controller respectively.
The novel ring art road cleaning device comprises a shell, wherein a water tank is fixedly installed at the top in the shell, a vertical first water inlet is formed in the top of the water tank, a vertical first through hole is formed in the top surface of the shell, a sealing cover is arranged at the outer end of the first through hole, a vertical first water outlet is formed in the bottom surface of the water tank, the outer end of the first water outlet is fixedly connected with the upper end of a first water inlet pipe, a horizontal second electric telescopic rod is fixedly installed at the other side of the middle part in the shell, a horizontal barrel is fixedly installed at the movable end of the second electric telescopic rod, a horizontal first rotating shaft is arranged in the middle part in the barrel, the outer end of the first rotating shaft penetrates through one side, close to a gear pump, of the barrel and is connected with the barrel through a sealing bearing, the first rotating shaft is collinear with the central line of an output shaft of the gear pump, the outer end of the first, the outer end of the second water inlet is fixedly connected with the lower end of the first water inlet pipe, the periphery of the first rotating shaft is fixedly provided with a helical blade, the helical blade is positioned in the barrel, the middle part in the shell is fixedly provided with a horizontal slide rail, the slide rail is positioned below the barrel, the upper end of the slide rail is provided with a slide block in sliding fit with the slide rail, the upper end of the slide block is fixedly connected with the bottom surface of the barrel, one side of the bottom surface of the barrel, which is far away from the gear pump, is provided with a vertical second water outlet, the lower end of the second water outlet is fixedly connected with the upper end of the second water inlet pipe, the outer end of the second through hole is fixedly connected with a vertical sleeve pipe, the sleeve pipe is sleeved on the periphery of the middle part of the second rotating shaft, the periphery of the lower part of the sleeve pipe is fixedly provided with an internally hollow annular disc, the lower extreme of second inlet tube runs through the outer end of third through hole fixed connection third inlet tube, and first inlet tube, second inlet tube all adopt the hose, and second electric telescopic handle is connected with power, controller.
As above a novel ring skill road cleaning device, power device include motor, first band pulley, second band pulley, the belt, one side fixed mounting motor in the casing, the output shaft of motor is down, motor and gear pump are located the homonymy, the first band pulley of output shaft fixed mounting of motor, the fixed suit second band pulley of upper portion periphery of second pivot, connect through the belt between first band pulley and the second band pulley, the motor is connected with power, controller.
According to the novel environmental road cleaning device, the garbage collection net is arranged on the inner side of the air inlet of the box body and is positioned in the box body.
According to the novel annular road cleaning device, the handle is fixedly arranged on one side of the shell.
According to the novel environment-friendly road cleaning device, the power supply is a storage battery, and the storage battery is arranged on one side of the bottom surface inside the shell.
According to the novel annular road cleaning device, a mesh screen is arranged at the joint of the air suction port of the gear pump and the box body.
The utility model has the advantages that: when the utility model is used, the water tank is filled with water in advance, as shown in the figure, the sanitation worker pushing device is used on a sidewalk or a bicycle lane which needs to be cleaned, the sanitation worker adjusts the distance between the scraping blade and the ground through the controller, the sanitation worker enables the gear pump to work through the controller, the gear pump sucks air from the lower end of the second rotating shaft, meanwhile, the air brings light garbage such as dust and leaves on the ground into the box body, meanwhile, the power device drives the second rotating shaft to rotate, the rotation of the second rotating shaft drives the scraping blade to rotate along with the second rotating shaft, the rotation of the scraping blade scrapes the bonding garbage on the ground, meanwhile, as the inner end of the scraping blade is fixedly connected with the periphery of the second rotating shaft and the inner end of the scraping blade is tangent to the periphery of the second rotating shaft, the rotation of the scraping blade drives the scraped bonding garbage to be close to the center of the, the bonding garbage is sucked into the box body together under the suction action of the gear pump, and the sucked garbage is sucked into the box body from the air inlet and falls into the box body under the action of the gravity of the garbage and cannot enter the gear pump because the box body is vertical to the air suction port of the gear pump; the distance between the scraping blade and the ground can be adjusted through the electric telescopic rod by a user, and the scraping blade and the disc can be effectively protected when the user passes through a hollow ground; the utility model relates to a rationally, adopt second pivot pivoted mode to drive the doctor-bar and rotate the bonding rubbish of clearance ground, simultaneously with inside the rubbish suction box when the gear pump suction air, effectual stubborn rubbish to the road cleans, the utility model is simple in operation and application scope are wide, can promote whole device by the sanitationman and clean narrow pavement, can also be fixed in the cleanness of this device after cleaning cart to pavement and bicycle lane simultaneously, the limit is removed and is cleaned, labour saving and time saving, the practicality is strong.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic structural diagram of the present invention; fig. 2 is an enlarged view of the view from the direction a of fig. 1.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
A novel ring art road cleaning device comprises a shell 1, a gear pump 8 is fixedly installed on one side of the middle in the shell 1, the output shaft of the gear pump 8 is horizontal, the air inlet of the gear pump 8 faces downwards, the lower end of the air inlet of the gear pump 8 is fixedly connected with a horizontal hollow box body 14 and communicated with the inside, the back surface and the front surface of the box body 14 are respectively fixedly connected with the inner wall corresponding to the shell 1, a vertical air inlet 15 is formed in one side, away from the gear pump 8, of the bottom surface of the box body 14, an outer end bearing of the air inlet 15 is connected with a vertical hollow second rotating shaft 16, a vertical second through hole 17 is formed in the middle of the bottom surface of the box body 14, the lower end of the second rotating shaft 16 penetrates through the second through hole 17 and is located below the shell, a power device for driving the second rotating shaft 16 to rotate is arranged in the shell 1, a plurality of scraping blades 23, the inner of doctor-bar 23 respectively with the periphery fixed connection of second pivot 16 and the inner of doctor-bar 23 respectively with the periphery tangent of second pivot 16, the lower extreme of doctor-bar 23 is sharp-pointed part, vertical expansion end 24 of first electric telescopic handle 24 down is installed to the bottom surface four corners department of casing 1, the expansion end fixed mounting gyro wheel 25 of first electric telescopic handle 24, casing 1's top surface one side fixed mounting controller 26, first electric telescopic handle 24, gear pump 8, power device are connected with power, controller 26 respectively. When the utility model is used, the water tank 2 is filled with water in advance, as shown in fig. 1, the sanitation worker pushing device is used on a sidewalk or a bicycle lane which needs to be cleaned, the sanitation worker adjusts the electric telescopic rod 24 through the controller 26 to adjust the distance between the scraping blade 23 and the ground, the sanitation worker enables the gear pump 8 to work through the controller 26, the gear pump 8 sucks air from the lower end of the second rotating shaft 16, meanwhile, the air brings light garbage such as dust and leaves on the ground into the box body 14, meanwhile, the power device drives the second rotating shaft 16 to rotate, the scraping blade 23 is driven by the rotation of the second rotating shaft 16 to rotate along with the rotation of the scraping blade 23, the bonded garbage on the ground is scraped by the rotation of the scraping blade 23, meanwhile, because the inner end of the scraping blade 23 is fixedly connected with the periphery of the second rotating shaft 16 and the inner end of the scraping blade 23 is tangent with the periphery of the second rotating shaft 16, the rotation of the scraping blade 23 drives the scraped bonded, therefore, the bonding garbage is sucked into the box body 14 under the suction action of the gear pump 8, and the sucked garbage is sucked into the box body 14 from the air inlet 15 and falls into the box body 14 under the action of the gravity of the garbage without entering the gear pump 8 because the box body 14 is vertical to the air suction port of the gear pump 8; the user can adjust the distance between the scraping blade 23 and the ground through the electric telescopic rod 24, and the scraping blade 23 and the disc 19 can be effectively protected when the user passes through a hollow ground; the utility model relates to a rationally, adopt 16 pivoted modes of second pivot to drive doctor-bar 23 and rotate the bonding rubbish on clearance ground, simultaneously with rubbish suction box 14 inside when gear pump 8 inhales the air, effectual stubborn rubbish to the road cleans, the utility model is simple in operation and application scope are wide, can promote whole device by the sanitationman and clean narrow pavement, can also be fixed in the cleanness of people's pavement and bicycle lane behind the cleaning cart with this device simultaneously, and the limit is removed cleanness, labour saving and time saving, and the practicality is strong.
Specifically, in order to wash the cleaned ground with water, in this embodiment, a water tank 2 is fixedly installed at the top of a housing 1, a vertical first water inlet 3 is formed at the top of the water tank 2, a vertical first through hole 4 is formed in the top surface of the housing 1, a sealing cover 5 is arranged at the outer end of the first through hole 4, a vertical first water outlet 6 is formed in the bottom surface of the water tank 2, the outer end of the first water outlet 6 is fixedly connected with the upper end of a first water inlet pipe 7, a horizontal second electric telescopic rod 36 is fixedly installed at the other side of the middle part of the interior of the housing 1, a horizontal barrel 9 is fixedly installed at the movable end of the second electric telescopic rod 36, a horizontal first rotating shaft 10 is arranged at the middle part of the barrel 9, the outer end of the first rotating shaft 10 penetrates through one side of the barrel 9 close to a gear pump 8 and is connected with the barrel through a sealing bearing, the center line of the output shaft of the first rotating, a vertical second water inlet 11 is formed in one side, close to the gear pump 8, of the top surface of the barrel 9, the outer end of the second water inlet 11 is fixedly connected with the lower end of the first water inlet pipe 7, a spiral blade 12 is fixedly installed on the periphery of the first rotating shaft 10, the spiral blade 12 is located in the barrel 9, a horizontal slide rail 37 is fixedly installed in the middle of the shell 1, the slide rail 37 is located below the barrel 9, a slide block 38 in sliding fit with the slide rail 37 is arranged at the upper end of the slide rail 37, the upper end of the slide block 38 is fixedly connected with the bottom surface of the barrel 9, a vertical second water outlet 33 is formed in one side, far away from the gear pump 8, of the bottom surface of the barrel 9, the lower end of the second water outlet 33 is fixedly connected with the upper end of the second water inlet pipe 13, a vertical sleeve 18 is fixedly connected with the outer end of the second through hole 17, the vertical apopore 20 of several evenly distributed is seted up to the bottom surface of disc 19, and vertical third inlet 21 is seted up to top surface one side of disc 19, and vertical third through hole 22 is seted up to bottom surface one side of casing 1, and the outer end of third through hole 22 fixed connection third inlet 21 is run through to the lower extreme of second inlet tube 13, and first inlet tube 7, second inlet tube 13 all adopt the hose, and second electric telescopic handle 36 is connected with power, controller 26. In the using process, as shown in fig. 1, after the scraping blade 23 scrapes the adhered garbage on the ground and the garbage is sucked into the box 14 under the action of the gear pump 8, the controller 26 makes the second electric telescopic rod 36 work to move the cylinder 9 to the gear pump 8, the cylinder 9 drives the second slider 38 to move to the gear pump 8 along the slide rail 37 until the outer end of the first rotating shaft 10 is inserted into the output shaft of the gear pump 8, the second electric telescopic rod 36 stops working, the output shaft of the gear pump 8 rotates to drive the first rotating shaft 10 to rotate along with the first rotating shaft 10, so that the helical blades 12 on the periphery of the first rotating shaft 10 also rotate along with the first rotating shaft, the water in the water tank 2 enters the cylinder 9 from the first water inlet pipe 7, the water is pushed to the second water outlet 33 under the rotation action of the helical blades 12, the water flows into the disc 19 from the second water outlet 33 through the second water inlet pipe 13 and, the ground is washed, the ground is further cleaned, and the cleaning capability of the whole device is stronger.
Specifically, as shown in fig. 1, the power device according to this embodiment includes a motor 27, a first belt wheel 28, a second belt wheel 29, and a belt 30, the motor 27 is fixedly installed on one side in the housing 1, an output shaft of the motor 27 faces downward, the motor 27 and the gear pump 8 are located on the same side, the first belt wheel 28 is fixedly installed on the output shaft of the motor 27, the second belt wheel 29 is fixedly sleeved on the upper outer periphery of the second rotating shaft 16, the first belt wheel 28 and the second belt wheel 29 are connected by the belt 30, and the motor 27 is connected to the power source and the controller 26. In the using process, a user enables the motor 27 to work through the controller, because the first belt wheel 28 and the second belt wheel 29 are connected through the belt 30, the rotation of the output shaft of the motor 27 drives the second belt wheel 29 to rotate, the rotation of the second belt wheel 29 enables the second rotating shaft 16 to rotate along with the second belt wheel, so that the scraper blade 23 is driven to rotate, and the mode of the motor 27 and the belt wheels is adopted to drive the second rotating shaft 16 to rotate to ensure the rotating speed of the second rotating shaft 16, so that the using effect of the scraper blade 23 is ensured.
Further, as shown in fig. 1, a garbage collection net 35 is installed inside the air inlet 15 of the box 14 according to the embodiment, and the garbage collection net 35 is located inside the box 14. The garbage collection net 35 can collect garbage and collect the garbage inside the net 35 when the garbage is sucked into the box 14, and can effectively prevent the garbage from being sucked into the gear pump 8.
Further, as shown in fig. 1, a handle 31 is fixedly installed on one side of the housing 1 according to the present embodiment. The handle 13 facilitates the user to push the entire device during use, facilitating movement of the device.
Furthermore, for the convenience of the user to use the electric power source outdoors, the electric power source is a battery 32, and the battery 32 is mounted on the bottom side of the inside of the housing 1. The battery 32 has long endurance time and light weight, and is beneficial for users to use under the condition that the wires cannot be connected outdoors, so that the whole device is more convenient to use.
Furthermore, in order to further prevent the garbage from being sucked into the gear pump 8, a mesh screen 34 is provided at the connection between the suction port of the gear pump 8 and the housing 14. The mesh screen 34 is effective in preventing garbage from being sucked into the gear pump 8 together with air sucked into the gear pump 8.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (7)

1. The utility model provides a novel ring skill road is clean device which characterized in that: comprises a shell (1), a gear pump (8) is fixedly arranged on one side of the inner middle part of the shell (1), the output shaft of the gear pump (8) is horizontal, the air inlet of the gear pump (8) faces downwards, the lower end of the air inlet of the gear pump (8) is fixedly connected with a horizontal hollow box body (14) and communicated with the inner part of the box body, the back surface and the front surface of the box body (14) are respectively fixedly connected with the corresponding inner walls of the shell (1), a vertical air inlet (15) is formed on one side, far away from the gear pump (8), of the bottom surface of the box body (14), the outer end bearing of the air inlet (15) is connected with a vertical hollow second rotating shaft (16), a vertical second through hole (17) is formed in the middle part of the bottom surface of the box body (14), the lower end of the second rotating shaft (16) penetrates through the second through hole (17) and is positioned below the shell, a power device for driving the second rotating, doctor-bar (23) are located casing (1) below and are located same horizontal plane, the inner of doctor-bar (23) is tangent with the periphery of second pivot (16) respectively with the periphery fixed connection of periphery and doctor-bar (23) the inner respectively with the periphery of second pivot (16), the lower extreme of doctor-bar (23) is sharp-pointed part, vertical expansion end first electric telescopic handle (24) down is installed to the bottom surface four corners department of casing (1), movable end fixed mounting gyro wheel (25) of first electric telescopic handle (24), top surface one side fixed mounting controller (26) of casing (1), first electric telescopic handle (24), gear pump (8), power device respectively with the power, controller (26) are connected.
2. The novel environmental road cleaning device of claim 1, which is characterized in that: the water pump is characterized in that a water tank (2) is fixedly mounted at the top in a shell (1), a vertical first water inlet (3) is formed at the top of the water tank (2), a vertical first through hole (4) is formed in the top surface of the shell (1), a sealing cover (5) is arranged at the outer end of the first through hole (4), a vertical first water outlet (6) is formed in the bottom surface of the water tank (2), the outer end of the first water outlet (6) is fixedly connected with the upper end of a first water inlet pipe (7), a horizontal second electric telescopic rod (36) is fixedly mounted at the other side of the middle in the shell (1), a horizontal barrel (9) is fixedly mounted at the movable end of the second electric telescopic rod (36), a horizontal first rotating shaft (10) is arranged at the middle in the barrel (9), the outer end of the first rotating shaft (10) penetrates through one side, close to the barrel (9), and is connected with the gear pump (8) through a sealing bearing, the first rotating shaft (, the outer end of the first rotating shaft (10) is in plug-in fit with an output shaft of the gear pump (8), one side, close to the gear pump (8), of the top surface of the barrel (9) is provided with a vertical second water inlet (11), the outer end of the second water inlet (11) is fixedly connected with the lower end of the first water inlet pipe (7), the periphery of the first rotating shaft (10) is fixedly provided with a spiral blade (12), the spiral blade (12) is positioned inside the barrel (9), the middle part in the shell (1) is fixedly provided with a horizontal sliding rail (37), the sliding rail (37) is positioned below the barrel (9), the upper end of the sliding rail (37) is provided with a sliding block (38) in sliding fit with the sliding block, the upper end of the sliding block (38) is fixedly connected with the bottom surface of the barrel (9), one side, far away from the gear pump (8), of the bottom surface of the barrel (9) is provided with a vertical second water outlet (33, the outer end fixed connection vertical sleeve pipe (18) of second through-hole (17), the middle part periphery of second pivot (16) is located to sleeve pipe (18) cover, the annular disc (19) of the inside hollow of lower part periphery fixed mounting of sleeve pipe (18), several evenly distributed's vertical apopore (20) are seted up to the bottom surface of disc (19), vertical third inlet port (21) are seted up to top surface one side of disc (19), vertical third through-hole (22) are seted up to bottom surface one side of casing (1), the outer end of third through-hole (22) fixed connection third inlet port (21) is run through to the lower extreme of second inlet tube (13), first inlet tube (7), second inlet tube (13) all adopt the hose, second electric telescopic handle (36) and power, controller (26) are connected.
3. The novel environmental road cleaning device of claim 1, which is characterized in that: the power device comprises a motor (27), a first belt wheel (28), a second belt wheel (29), a belt (30), a motor (27) is fixedly installed on one side in the shell (1), an output shaft of the motor (27) faces downwards, the motor (27) and the gear pump (8) are located on the same side, the first belt wheel (28) is fixedly installed on the output shaft of the motor (27), the second belt wheel (29) is fixedly sleeved on the periphery of the upper portion of the second rotating shaft (16), the first belt wheel (28) is connected with the second belt wheel (29) through the belt (30), and the motor (27) is connected with a power source and the controller (26).
4. The novel environmental road cleaning device of claim 1, which is characterized in that: a garbage collection net (35) is arranged on the inner side of the air inlet (15) of the box body (14), and the garbage collection net (35) is positioned in the box body (14).
5. The novel annular road cleaning device as claimed in claim 1, 2, 3 or 4, wherein: a handle (31) is fixedly arranged on one side of the shell (1).
6. The novel annular road cleaning device as claimed in claim 1, 2, 3 or 4, wherein: the power supply is a storage battery (32), and the storage battery (32) is arranged on one side of the bottom surface inside the shell (1).
7. The novel annular road cleaning device as claimed in claim 1, 2, 3 or 4, wherein: and a mesh screen (34) is arranged at the joint of the air suction port of the gear pump (8) and the box body (14).
CN201921461795.0U 2019-09-04 2019-09-04 Novel environmental road cleaning device Expired - Fee Related CN210917167U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921461795.0U CN210917167U (en) 2019-09-04 2019-09-04 Novel environmental road cleaning device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921461795.0U CN210917167U (en) 2019-09-04 2019-09-04 Novel environmental road cleaning device

Publications (1)

Publication Number Publication Date
CN210917167U true CN210917167U (en) 2020-07-03

Family

ID=71345568

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921461795.0U Expired - Fee Related CN210917167U (en) 2019-09-04 2019-09-04 Novel environmental road cleaning device

Country Status (1)

Country Link
CN (1) CN210917167U (en)

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

Granted publication date: 20200703

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