CN112705520A - Equipment for cleaning dust adhered to surface of rotating shaft of fan and keeping rotating speed - Google Patents
Equipment for cleaning dust adhered to surface of rotating shaft of fan and keeping rotating speed Download PDFInfo
- Publication number
- CN112705520A CN112705520A CN202011449580.4A CN202011449580A CN112705520A CN 112705520 A CN112705520 A CN 112705520A CN 202011449580 A CN202011449580 A CN 202011449580A CN 112705520 A CN112705520 A CN 112705520A
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- CN
- China
- Prior art keywords
- disc
- rotating
- fan
- rotating shaft
- dust adhered
- 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.)
- Withdrawn
Links
- 239000000428 dust Substances 0.000 title claims abstract description 46
- 238000004140 cleaning Methods 0.000 title claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 238000005096 rolling process Methods 0.000 claims abstract description 17
- 239000000314 lubricant Substances 0.000 claims description 17
- 230000001788 irregular Effects 0.000 claims description 6
- 230000002209 hydrophobic effect Effects 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 3
- 239000007864 aqueous solution Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 11
- 239000003974 emollient agent Substances 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 230000001965 increasing effect Effects 0.000 description 5
- 238000005461 lubrication Methods 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/28—Plant or installations without electricity supply, e.g. using electrets
- B03C3/30—Plant or installations without electricity supply, e.g. using electrets in which electrostatic charge is generated by passage of the gases, i.e. tribo-electricity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N11/00—Arrangements for supplying grease from a stationary reservoir or the equivalent in or on the machine or member to be lubricated; Grease cups
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N23/00—Special adaptations of check valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning In General (AREA)
Abstract
The invention relates to the technical field of fan maintenance, and discloses equipment for cleaning dust adhered to the surface of a rotating shaft of a fan and keeping the rotating speed. Stretch into inside the circuit connector through the conducting rod, rolling disc pivoted in-process, electromagnetic relay on the rotor plate attracts the magnet of water tank valve piece front end, because the valve piece is in the inside part of telescopic link and has the through-hole, will make the water tank switch on, spout emollient towards the rolling disc, along with the rolling disc continues to rotate, the effect with the help of the dog will make emollient by even scribbling on rolling disc and fixed disc, reached automatically for both evenly scribble emollient, reinforcing lubricated effect between the two.
Description
Technical Field
The invention relates to the technical field of fan maintenance, in particular to equipment for cleaning dust adhered to the surface of a rotating shaft of a fan and keeping the rotating speed.
Background
The fan refers to a tool for cooling by generating wind in hot days. The electric fan uses electric power to drive a device for generating air flow, and the fan arranged in the electric fan rotates after being electrified, so that the electric fan turns into natural wind to achieve a cool effect. The operating principle of the fan is to convert electrical energy into mechanical energy.
The pivot of fan is in semi-closed state, when the dust enters into the pivot, will slow down the rotational speed of fan, has strengthened the frictional force between fan axle and the pivot simultaneously to lead to the inside temperature of pivot to rise, probably lead to the fan impaired, so we have proposed a equipment that clearance fan axis of rotation surface adhesion dust keeps the rotational speed and have solved above problem.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides equipment for cleaning dust adhered to the surface of a rotating shaft of a fan and keeping the rotating speed, which has the advantages that the dust adhered to the rotating shaft is automatically removed after the temperature in the rotating shaft rises, meanwhile, the rotating shaft is coated with a lubricant, and the lubricant is uniformly coated on the rotating shaft, so that the problems that the rotating speed of the fan is reduced when the dust enters the rotating shaft, the friction force between the fan shaft and the rotating shaft is enhanced, the temperature in the rotating shaft rises, and the fan is possibly damaged are solved.
(II) technical scheme
In order to achieve the purposes that dust adhered to the rotating shaft is automatically removed after the temperature in the rotating shaft rises, and meanwhile, the rotating shaft is coated with a lubricant and the lubricant is uniformly coated on the rotating shaft, the invention provides the following technical scheme: an equipment for cleaning dust adhered on the surface of a rotating shaft of a fan and keeping the rotating speed comprises a fixed disc, a water tank is fixedly arranged on the inner wall of the fixed disc, a valve groove is formed in the bottom of the water tank, a telescopic rod is fixedly arranged in the valve groove, a valve block is slidably connected in the telescopic rod, a magnet is fixedly arranged on the right side of the valve block, a stop block is fixedly arranged in the fixed disc, a rotating disc is movably arranged in the fixed disc, a rotating plate is movably arranged on the outer wall of the rotating disc, an electromagnetic relay is fixedly arranged in the rotating plate, an elastic rope is fixedly connected at the bottom of the rotating plate, a heat conducting groove is fixedly arranged on the inner wall of the rotating disc, a hydrophobic film is fixedly arranged in the heat conducting groove, a through hole is formed in the top of the heat conducting groove, and a, spheroidal outer wall fixedly connected with inlet channel, inlet channel's inner wall movable mounting has the carousel, the front movable mounting of carousel has the drive pole, the left side sliding connection of carousel has the ejector pin, the left side fixed mounting of ejector pin has the conducting rod, the inner wall fixed mounting of rolling disc has the circuit connector, the inside fixed mounting of rolling disc has the friction disc, spheroidal bottom fixed mounting has the motor, the bottom fixed mounting of motor has the brush.
Preferably, the inside of the water tank is provided with a lubricant, and the lubricant is in a flowing solid state.
Preferably, the part of the valve block, which is initially positioned in the telescopic rod, is provided with a through hole.
Preferably, the stop block is a smooth plate, and the stop block and the rotating plate are not located on the same plane, so that the stop block is prevented from influencing the rotation of the rotating disc.
Preferably, the water solution is placed in the heat conduction groove, so that the rotating plate is pushed to rotate, and the circuit is connected.
Preferably, the turntable is an irregular disk, the left side is a concave disk, and the right side is a convex disk.
Preferably, the outer wall of the rotating disc is provided with holes, so that dust can enter the rotating disc, and the dust can be discharged from the rotating disc.
(III) advantageous effects
Compared with the prior art, the invention provides equipment for cleaning dust adhered to the surface of a rotating shaft of a fan and keeping the rotating speed, which has the following beneficial effects:
1. the equipment for cleaning dust adhered to the surface of the rotating shaft of the fan to keep the rotating speed can increase the friction between the rotating disc and the fixed disc after the dust is adhered to the fixed disc, so that the water solution in the heat conducting groove in the rotating disc is evaporated into water vapor, the rotating disc is pushed to rotate clockwise along with the continuous increase of the water vapor, the rotating disc is opened, the water vapor is discharged from the rotating disc and blows against the inner wall of the fixed disc, so that the dust adhered to the fixed disc is blown up, meanwhile, the rotating disc rotates clockwise, the rotating disc is driven to deflect by the driving rod, the rotating disc is an irregular disc, the ejector rod is pushed out after the rotating disc deflects, the conductive rod is driven to enter the circuit connector, so that the motor at the bottom of the sphere obtains power supply, and the motor drives the brush to rotate, make the brush constantly with the friction plate friction production electric charge, attract the dust that the vapor blown, because the tiny hole has been seted up to the rolling disc outer wall to make the dust on the fixed disc sucked inside the rolling disc, discharge from the rolling disc is inside afterwards, reached when fixed disc and the inside dust volume of rolling disc increase, the automatic dust of getting rid of between the two reduces the effect of the kinetic friction between the two.
2. This equipment of rotational axis surface adhesion dust of clearance fan keeps rotational speed, stretch into inside the circuit joint through the conducting rod, thereby make the inside electromagnetic relay of rotor plate get electric, thereby at rotor plate pivoted in-process, the electromagnetic relay on the rotor plate attracts the magnet of water tank valve piece front end, thereby make the valve piece move inside the telescopic link, because the part that the valve piece is in the telescopic link has the through-hole, after the valve piece is pulled out from the telescopic link, will make the water tank switch on, spout emollient towards on the rotor plate, continue to rotate along with the rotor plate, will make the emollient by even paining on rotor plate and fixed disc with the help of the effect of dog, thereby increase lubrication between the two, reached automatically for evenly paining the emollient between fixed disc and the rotor plate, strengthen lubricated effect between the two.
Drawings
FIG. 1 is a schematic structural diagram of a cleaning and lubricating device for a rotating shaft;
FIG. 2 is a schematic view of a lubricant enclosure;
FIG. 3 is a schematic diagram of a lubricant valve spool conduction control device;
FIG. 4 is an enlarged view of the check valve;
fig. 5 is a schematic structural diagram of the conduction control device.
In the figure: 1. fixing the disc; 2. a water tank; 3. a valve spool; 4. a telescopic rod; 5. a valve block; 6. a magnet; 7. a stopper; 8. rotating the disc; 9. a rotating plate; 10. an electromagnetic relay; 11. an elastic cord; 12. a heat conducting groove; 13. a hydrophobic membrane; 14. a through hole; 15. a sphere; 16. a water inlet pipe; 17. a turntable; 18. driving the rod; 19. a top rod; 20. a conductive rod; 21. a circuit connector; 22. a friction plate; 23. a motor; 24. and a brush.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, an apparatus for cleaning dust adhered on the surface of a rotating shaft of a fan to maintain the rotating speed comprises a fixed disc 1, a water tank 2 is fixedly installed on the inner wall of the fixed disc 1, a lubricant is placed in the water tank 2 and is in a flowing solid state, a valve slot 3 is formed in the bottom of the water tank 2, an expansion link 4 is fixedly installed in the valve slot 3, a valve block 5 is slidably connected in the expansion link 4, a through hole 14 is formed in the part of the valve block 5, which is initially located in the expansion link 4, a magnet 6 is fixedly installed on the right side of the valve block 5, a stopper 7 is fixedly installed in the fixed disc 1, the stopper 7 is a smooth plate, the stopper 7 and a rotating plate 9 are not in the same plane, the influence of the stopper 7 on the rotation of the rotating disc 8 is avoided, a rotating disc 8 is movably installed in the, the dust can enter the rotating disc 8 conveniently, so that the dust can be discharged from the rotating disc 8, the rotating disc 9 is movably arranged on the outer wall of the rotating disc 8, the electromagnetic relay 10 is fixedly arranged in the rotating disc 9, the elastic rope 11 is fixedly connected to the bottom of the rotating disc 9, the heat conducting groove 12 is fixedly arranged on the inner wall of the rotating disc 8, the aqueous solution is placed in the heat conducting groove 12, the rotating disc 9 can be pushed to rotate conveniently, so that a circuit is connected, the hydrophobic film 13 is fixedly arranged in the heat conducting groove 12, the through hole 14 is formed in the top of the heat conducting groove 12, the sphere 15 is fixedly arranged in the rotating disc 8, the water inlet pipeline 16 is fixedly connected to the outer wall of the sphere 15, the rotating disc 17 is movably arranged on the inner wall of the water inlet pipeline 16, the rotating disc 17 is an irregular disc, the left side is a, an ejector rod 19 is connected to the left side of the rotary disc 17 in a sliding mode, a conducting rod 20 is fixedly mounted on the left side of the ejector rod 19, a circuit connector 21 is fixedly mounted on the inner wall of the rotary disc 8, a friction plate 22 is fixedly mounted inside the rotary disc 8, a motor 23 is fixedly mounted at the bottom of the ball 15, and a brush 24 is fixedly mounted at the bottom of the motor 23.
The working principle is that after dust is adhered to the fixed disc 1, the friction between the rotating disc 8 and the fixed disc 1 is increased, so that the water solution in the heat conducting groove 12 in the rotating disc 8 is evaporated into water vapor, the rotating disc 9 is pushed to rotate clockwise along with the increase of the water vapor, so that the rotating disc 9 is opened, the water vapor is discharged from the rotating disc 9 and blows against the inner wall of the fixed disc 1, so that the dust adhered to the fixed disc 1 is blown up, meanwhile, the rotating disc 9 rotates clockwise, the rotating disc 17 is driven to deflect by the driving rod 18, because the rotating disc 17 is an irregular disc, after the rotating disc 17 deflects, the ejector rod 19 is pushed out, so that the conductive rod 20 is driven to enter the circuit connector 21, so that the motor 23 at the bottom of the sphere 15 obtains power supply, and the motor 23 drives the brush 24 to rotate, the brush 24 continuously rubs with the friction plate 22 to generate electric charges to attract dust blown by water vapor, the outer wall of the rotating disc 8 is provided with tiny holes, so that the dust on the fixed disc 1 is sucked into the rotating disc 8 and then is discharged from the rotating disc 8, the dust between the fixed disc 1 and the rotating disc 8 is automatically removed when the dust amount in the fixed disc 1 and the rotating disc 8 is increased, the effect of reducing the movement friction force between the fixed disc 1 and the rotating disc 8 is achieved, the conductive rod 20 extends into the circuit connector 21, so that the electromagnetic relay 10 in the rotating plate 9 is electrified, and in the rotating process of the rotating disc 8, the electromagnetic relay 10 on the rotating plate 8 attracts the magnet 6 at the front end of the valve block 5 in the water tank 2, so that the valve block 5 moves in the telescopic rod 4, and the through hole 14 exists in the part of the valve block 5 in the telescopic rod 4, after the valve block 5 is pulled out from the telescopic rod 4, the water tank 2 is conducted, the lubricant is sprayed out towards the rotating disc 8, the lubricant is uniformly coated on the rotating disc 8 and the fixed disc 1 under the action of the stop block 7 along with the continuous rotation of the rotating disc 8, so that the lubrication between the rotating disc 8 and the fixed disc 1 is increased, the lubricant is automatically and uniformly coated between the fixed disc 1 and the rotating disc 8, and the lubrication effect between the fixed disc 1 and the rotating disc 8 is enhanced.
In summary, the device for cleaning dust adhered on the surface of the rotating shaft of the fan to maintain the rotating speed will increase the friction between the rotating disc 8 and the fixed disc 1 after the dust is adhered on the fixed disc 1, so that the water solution in the heat conducting groove 12 inside the rotating disc 8 is evaporated into water vapor, the rotating disc 9 will be pushed to rotate clockwise with the increasing of the water vapor, so that the rotating disc 9 is opened, the water vapor will be discharged from the rotating disc 9, the inner wall of the fixed disc 1 is blown, so that the dust adhered on the fixed disc 1 is blown up, at the same time, the rotating disc 9 rotates clockwise, the rotating disc 17 is driven to deflect by the driving rod 18, the top rod 19 will be pushed out after the rotating disc 17 deflects due to the irregular disc 17, so as to drive the conducting rod 20 into the circuit connector 21, so that the motor 23 at the bottom of the sphere 15 obtains the power supply, thereby motor 23 drives brush 24 and rotates, make brush 24 constantly with friction plate 22 friction production electric charge, attract the dust that the vapor blown gets up, because the tiny hole has been seted up to rolling disc 8 outer wall, thereby make the dust on the fixed disc 1 sucked inside the rolling disc 8, discharge from rolling disc 8 inside afterwards, reached when fixed disc 1 and the inside dust volume of rolling disc 8 increase, the automatic dust of getting rid of between the two, reduce the effect of the motion frictional force between the two.
Moreover, the device for cleaning dust adhered on the surface of the rotating shaft of the fan and keeping the rotating speed extends into the circuit connector 21 through the conducting rod 20, so that the electromagnetic relay 10 in the rotating plate 9 is electrified, in the rotating process of the rotating plate 8, the electromagnetic relay 10 on the rotating plate 8 attracts the magnet 6 at the front end of the valve block 5 in the water tank 2, so that the valve block 5 moves in the telescopic rod 4, because the through hole 14 exists in the part of the valve block 5 in the telescopic rod 4, when the valve block 5 is pulled out from the telescopic rod 4, the water tank 2 is conducted, the lubricant is sprayed towards the rotating plate 8, the rotating plate 8 continues to rotate, the lubricant is uniformly coated on the rotating plate 8 and the fixed disc 1 under the action of the stop 7, the lubrication between the rotating plate 8 and the fixed disc 1 is increased, and the purpose of automatically and uniformly coating the lubricant between the fixed disc 1 and the rotating disc 8 is achieved, enhancing the lubrication effect between the two.
Having shown and described embodiments of the present invention, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. An equipment for cleaning dust adhered on the surface of a rotating shaft of a fan to keep the rotating speed comprises a fixed disc (1), and is characterized in that: the water tank is characterized in that a water tank (2) is fixedly mounted on the inner wall of the fixed disc (1), a valve groove (3) is formed in the bottom of the water tank (2), a telescopic rod (4) is fixedly mounted inside the valve groove (3), a valve block (5) is slidably connected inside the telescopic rod (4), a magnet (6) is fixedly mounted on the right side of the valve block (5), a stop block (7) is fixedly mounted inside the fixed disc (1), a rotating disc (8) is movably mounted inside the fixed disc (1), a rotating plate (9) is movably mounted on the outer wall of the rotating disc (8), an electromagnetic relay (10) is fixedly mounted inside the rotating plate (9), an elastic rope (11) is fixedly connected to the bottom of the rotating plate (9), a heat conducting groove (12) is fixedly mounted on the inner wall of the rotating disc (8), and a hydrophobic film (13) is fixedly mounted inside the heat conducting groove (12, through-hole (14) have been seted up at the top of heat conduction slot (12), the inside fixed mounting of rolling disc (8) has spheroid (15), the outer wall fixedly connected with inlet channel (16) of spheroid (15), the inner wall movable mounting of inlet channel (16) has carousel (17), the front movable mounting of carousel (17) has drive pole (18), the left side sliding connection of carousel (17) has ejector pin (19), the left side fixed mounting of ejector pin (19) has conducting rod (20), the inner wall fixed mounting of rolling disc (8) has circuit connector (21), the inside fixed mounting of rolling disc (8) has friction disc (22), the bottom fixed mounting of spheroid (15) has motor (23), the bottom fixed mounting of motor (23) has brush (24).
2. The apparatus for cleaning dust adhered to the surface of the rotating shaft of the fan to maintain the rotating speed according to claim 1, wherein: and a lubricant is placed in the water tank (2), and the lubricant is in a flowing solid state.
3. The apparatus for cleaning dust adhered to the surface of the rotating shaft of the fan to maintain the rotating speed according to claim 1, wherein: the part, which is located inside the telescopic rod (4), of the valve block (5) at the beginning is provided with a through hole (14).
4. The apparatus for cleaning dust adhered to the surface of the rotating shaft of the fan to maintain the rotating speed according to claim 1, wherein: the stop block (7) is a smooth plate, and the stop block (7) and the rotating plate (9) are not in the same plane.
5. The apparatus for cleaning dust adhered to the surface of the rotating shaft of the fan to maintain the rotating speed according to claim 1, wherein: the heat conduction groove (12) is internally provided with an aqueous solution.
6. The apparatus for cleaning dust adhered to the surface of the rotating shaft of the fan to maintain the rotating speed according to claim 1, wherein: the rotary table (17) is an irregular disc, the left side of the rotary table is a concave disc, and the right side of the rotary table is a convex disc.
7. The apparatus for cleaning dust adhered to the surface of the rotating shaft of the fan to maintain the rotating speed according to claim 1, wherein: the outer wall of the rotating disc (8) is provided with a hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011449580.4A CN112705520A (en) | 2020-12-09 | 2020-12-09 | Equipment for cleaning dust adhered to surface of rotating shaft of fan and keeping rotating speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011449580.4A CN112705520A (en) | 2020-12-09 | 2020-12-09 | Equipment for cleaning dust adhered to surface of rotating shaft of fan and keeping rotating speed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112705520A true CN112705520A (en) | 2021-04-27 |
Family
ID=75543101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011449580.4A Withdrawn CN112705520A (en) | 2020-12-09 | 2020-12-09 | Equipment for cleaning dust adhered to surface of rotating shaft of fan and keeping rotating speed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112705520A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113386171A (en) * | 2021-05-24 | 2021-09-14 | 朱俊丽 | Prevent that axis of rotation from being blocked unable rotatory lock screw arm device by piece |
-
2020
- 2020-12-09 CN CN202011449580.4A patent/CN112705520A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113386171A (en) * | 2021-05-24 | 2021-09-14 | 朱俊丽 | Prevent that axis of rotation from being blocked unable rotatory lock screw arm device by piece |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210427 |