CN211447870U - Wall crack repairing device - Google Patents
Wall crack repairing device Download PDFInfo
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- CN211447870U CN211447870U CN201921474314.XU CN201921474314U CN211447870U CN 211447870 U CN211447870 U CN 211447870U CN 201921474314 U CN201921474314 U CN 201921474314U CN 211447870 U CN211447870 U CN 211447870U
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- wall
- repairing
- repairing agent
- nozzle
- pipe
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Abstract
The utility model discloses a wall crack repairing device, which comprises a fixed disk, wherein two sides of the fixed disk are respectively provided with a wall climbing mechanism, the fixed disk is internally connected with a rotary cylinder through a tapered roller bearing, a repairing agent cavity is arranged in the rotary cylinder, the bottom of the repairing agent cavity is provided with a repairing agent output tube, and a repairing agent input tube for supplementing the repairing agent is arranged on the top plate of the repairing agent cavity; an air blowing pipe penetrates through the top of the rotary cylinder and is arranged in the rotary cylinder, and an air blowing pipe nozzle is arranged on the air blowing pipe; the utility model discloses a climbing mechanism makes the utility model discloses can realize advancing on the wall, retreat, turn left and turn right, be convenient for the utility model discloses a crack repair work does not need the artifical scaffold of putting up to carry out crack repair work to the crack of wall eminence, has not only saved the emergence that the labour has still reduced the incident.
Description
Technical Field
The invention belongs to the field of intelligent control, and particularly relates to a wall crack repairing device.
Background
With the economic progress and the development of science and technology, high-rise buildings in cities are more and more, and due to the influence of construction materials and building bearing structures, the walls, basements, house doors, kitchens, toilets, pools and the like of civil buildings can crack to a certain degree, so that the buildings are in a dangerous state; the method is generally required to make up for the crack, wherein one method for repairing the crack of the building wall is adopted, and the grouting process injects slurry into the crack by using a pressure feeding means to improve the water physical property and the mechanical property of the crack; in addition, a chiseling method is adopted, vibration generated by chiseling can cause loosening of the building structure part, and the grouting technology has the advantages of small construction influence range and good reinforcing effect, and achieves better effect in prevention and control of civil construction diseases.
For example, chinese patent with publication number CN203701634U discloses a device for repairing cracks in a building wall, wherein one end of a grouting pipe core is connected with a high-pressure grouting hose; the high-pressure grouting hose is connected with a high-speed motor: the grouting pipe core is inserted into the wall to be repaired through a grouting pre-buried hole arranged on the supporting wall; the upper part of the wall to be repaired is provided with an exhaust hole, the lower part of the wall to be repaired is provided with a wall strut, and the inner end of the wall strut is connected with a casting bracket; the slurry can be injected into the cracks by using the pressure feeding of a high-speed motor, the water physical property and the mechanical property of the cracks are improved, the construction influence range is small, the reinforcing effect is good, a casting support is arranged for supporting and accelerating solidification, and exhaust holes are arranged for exhausting; however, the patent requires manual assistance when dealing with cracks at high positions of the wall body, and is not suitable for automatic treatment of building cracks in various occasions.
In order to solve the above technical problems, the present invention provides a wall crack repairing apparatus, which can automatically climb to a position to be repaired, and can rapidly repair a crack and accelerate the solidification of a repairing agent.
Disclosure of Invention
In view of the above-mentioned deficiencies of the prior art, it is an object of the present invention to provide a wall crack repairing apparatus.
The invention is realized by the following technical scheme.
A wall crack repairing device comprises a fixed disc, wherein wall climbing mechanisms are respectively arranged on two sides of the fixed disc, a rotary drum is connected to the fixed disc in an inscribed mode through a tapered roller bearing, a repairing agent chamber is arranged in the rotary drum, a repairing agent output pipe is arranged at the bottom of the repairing agent chamber, and a repairing agent input pipe for supplementing a repairing agent is arranged on a top plate of the repairing agent chamber; and an air blowing pipe penetrates through the top of the rotary cylinder and is arranged in the rotary cylinder, and an air blowing pipe nozzle is arranged on the air blowing pipe.
The method mainly aims at the repair work of the dominant cracks; specifically, the repairing device reaches the position where the crack needs to be repaired through the wall climbing mechanism, then the crack needing to be repaired is cleaned through the blowing pipe, the repairing agent in the repairing agent cavity is filled into the crack through the repairing agent output pipe after the crack is cleaned, and finally the repairing agent filled into the crack is rapidly cooled through the blowing pipe again to complete repairing work.
Furthermore, the wall climbing mechanism comprises a centrifugal fan, a negative pressure cavity, a chassis and a driving component; the bottom of the negative pressure cavity is provided with an air suction hole which penetrates through the chassis, and the negative pressure cavity and the chassis are integrally formed, so that the sealing effect of the negative pressure cavity is better; the driving part comprises two driving motors, a driving wheel and a driven wheel, the two driving motors are respectively arranged on two side plates of the chassis, the driving motors are connected with the driving wheel through transmission gears and can drive the driving wheel to rotate, and the two driving wheels and the two driven wheels are respectively distributed on the two side plates of the chassis in a crossed manner, so that the forward movement, the backward movement, the left rotation and the right rotation of the wall climbing mechanism can be realized by controlling the rotating direction of the driving motors, the operation is convenient, and the walking is free and flexible; the centrifugal fan at the top of the negative pressure cavity can suck the air in the negative pressure cavity outwards, so that negative pressure is formed in the negative pressure cavity; a sealing skirt surrounding the chassis for one circle is arranged at the edge of the chassis; the centrifugal fan, the negative pressure cavity and the sealing skirt are matched to generate pressure for pressing the wall climbing mechanism on the wall surface; when the pressure is large enough, the wall climbing mechanism can be tightly attached to the wall surface; at the moment, the crack repairing device can be driven to walk on the wall surface by controlling the driving wheel.
Furthermore, a U-shaped support is movably mounted on the support, a screw rod seat is arranged on a bottom plate of the U-shaped support, a screw rod is mounted on the screw rod seat, a screw rod motor is mounted on a top plate of the U-shaped support, and an output shaft of the screw rod motor is connected with the screw rod through a coupling; the screw rod is also provided with a bracket, and the bracket is connected with the fixed disc; the distance between the fixed disc and the rotating cylinder and the wall can be adjusted by driving the screw rod through the screw rod motor.
Furthermore, a motor support used for installing a rotating motor is arranged on the fixed disc, and an output shaft of the rotating motor is connected with the rotating cylinder through a connecting seat; the main function of the rotating motor is to provide the rotating drum with rotating power.
Furthermore, the fixed disc is provided with a hole for penetrating through the air blowing pipe; and a pipe joint used for connecting an air source is arranged at an air inlet of the air blowing pipe, and an air outlet of the air blowing pipe is connected with an air blowing pipe nozzle.
Furthermore, the blow pipe nozzle comprises a joint for connecting the blow pipe and a horn-shaped nozzle; the connector is provided with an external thread, and the air blow pipe is provided with an internal thread matched with the external thread; the spray head is welded with a cover plate, the cover plate is provided with air holes, and the outer side of the cover plate is also provided with an elastic tissue; when the air blowing pipe blows air outwards, the elastic tissue bulges outwards under the action of air pressure, and when the repairing agent is cooled by the air blowing pipe after being filled, the bulged elastic tissue also has the function of secondary floating of the repairing agent filled in the crack.
Furthermore, the bottom plate and the side plate of the mending agent chamber form an acute angle, the angle ranges from 87 degrees to 60 degrees, and the acute angle is convenient for the mending agent to smoothly pass through.
Furthermore, a mending agent output pipe is arranged at the lowest position of the bottom plate, a hose is connected to the mending agent output pipe, a mending agent spray head is installed on the hose, the mending agent spray head is connected to a piston rod of an air cylinder through a connecting support, and the air cylinder is installed on the inner wall of the rotary cylinder; when the mending agent needs to be filled into the crack, the piston rod of the air cylinder is pushed out to push the mending agent spray head arranged on the piston rod to the crack, and the mending agent is filled into the crack.
The acute angle is convenient for the healant to be smoothly output through the healant output pipe.
Furthermore, the mending agent spray head comprises a spray nozzle and a scraper; the nozzle is arranged in the mending agent spray head and is conical; the scraping plate is positioned on the outer side of the mending agent spray head and is flush with the spray nozzle; when the mending agent is filled in the crack, the mending agent is firstly smoothed by the arranged scraping plate along with the movement of the mending device when the mending agent is filled, and the part of the scraping plate, which is in contact with the mending agent, is coated with Teflon so as to prevent the mending agent from being adhered to the scraping plate to influence the later use.
Furthermore, the outer wall of the bottom of the rotating cylinder is provided with a universal wheel; the main function of the universal wheel is supporting.
The repair agent filling device comprises a control system and a crack detection device, when the crack detection device detects a crack, the control system controls the rotary cylinder to align the air blowing pipe with the crack for cleaning, and after the cleaning is completed, the control system controls the rotary motor to rotate the rotary cylinder, aligns the repair agent spray head with the crack and controls the air cylinder to drive the repair agent spray head to the crack for repair agent filling.
Compared with the prior art, the invention has the beneficial effects that:
1. the wall climbing mechanism enables the wall repairing machine to realize forward movement, backward movement, left turning and right turning on the wall, so that crack repairing work is facilitated, a scaffold does not need to be manually built for crack repairing work of cracks at a high position of the wall, labor force is saved, and safety accidents are reduced;
2. the automatic adjustment of the distance between the rotary cylinder and the wall is realized through the arranged U-shaped bracket;
3. the horn-shaped blowing pipe nozzle and the air holes enable the gas in the blowing pipe to be sprayed on the repairing agent filled in the crack in a divergent mode, so that the cooling speed is increased, and the forming of the repairing agent in the crack cannot be damaged;
4. the arranged elastic tissue can carry out secondary floating on the repairing agent filled in the crack;
5. the repairing agent spray nozzle can automatically repair cracks, the repairing agent filled in the cracks is scraped by the scraper on the repairing agent spray nozzle, and the repairing agent is cooled by the air blowing pipe.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is an enlarged view of A in FIG. 1;
FIG. 4 is a schematic structural view of a healant nozzle according to the present invention;
fig. 5 is a side view of fig. 4.
In the figure: 1. fixing the disc; 101. a rotating electric machine; 102. a motor support; 103. a connecting seat; 104. an output shaft of the motor; 2. a wall climbing mechanism; 201. a centrifugal fan; 202. a negative pressure chamber; 203. a chassis; 21. a drive member; 211. a driving wheel; 212. a driven wheel; 3. a tapered roller bearing; 4. a rotary drum; 401. a healant chamber; 402. a healant output pipe; 403. a top plate; 404. a healant input tube; 405. a base plate; 406. a side plate; 407. a hose; 408. connecting a bracket; 409. a cylinder; 5. an air blowing pipe; 501. a pipe joint; 51. a blow pipe nozzle; 511. a joint; 512. a spray head; 513. a cover plate; 514. air holes; 515. an elastic tissue; 6. a U-shaped bracket; 601. a screw base; 602. a screw rod; 603. a screw motor; 604. a coupling; 605. a support; 7. a healant spray head; 701. a nozzle; 702. a squeegee; 8. a universal wheel.
Detailed Description
The technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood 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 of the present invention without any inventive step, are within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance,
in the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other; the specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The present invention will be described in further detail below with reference to specific embodiments and with reference to the attached drawings.
Example 1
As shown in fig. 1-2, a wall crack repairing device includes a fixed disk 1, two sides of the fixed disk 1 are respectively provided with a wall climbing mechanism 2, a rotating cylinder 4 is connected to the fixed disk 1 through a tapered roller bearing 3, a repairing agent chamber 401 is arranged in the rotating cylinder 4, the bottom of the repairing agent chamber 401 is provided with a repairing agent output tube 402, and a repairing agent input tube 404 for supplementing a repairing agent is arranged on a top plate 403 of the repairing agent chamber 401; an air blowing pipe 5 penetrates through the top of the rotary cylinder 4 and is arranged in the rotary cylinder 4, an air blowing pipe nozzle 51 is installed on the air blowing pipe 5, and the cross section of the rotary cylinder 4 is in a convex shape.
The method mainly aims at the repair work of the dominant cracks; the repairing device reaches the position where the crack needs to be repaired through the wall climbing mechanism 2, then the crack needing to be repaired is cleaned through the air blowing pipe 5, the repairing agent in the repairing agent cavity 401 is filled into the crack through the repairing agent output pipe 402 after the crack is cleaned, and finally the repairing agent filled into the crack is rapidly cooled through the air blowing pipe 5 again to complete repairing work.
The wall climbing mechanism 2 comprises a centrifugal fan 201, a negative pressure cavity 202, a chassis 203 and a driving part 21; the bottom of the negative pressure cavity 202 is provided with an air suction hole, the air suction hole penetrates through the chassis 203, and the negative pressure cavity 202 and the chassis 203 are integrally formed, so that the sealing effect of the negative pressure cavity 202 is better; the driving part 21 comprises two driving motors, a driving wheel 211 and a driven wheel 212, the two driving motors are respectively installed on two side plates of the chassis 203, the driving motors are connected with the driving wheel 211 through transmission gears and can drive the driving wheel 211 to rotate, the two driving wheels 211 and the driven wheel 212 are respectively distributed on the two side plates of the chassis 203 in a crossed manner, and therefore advancing, retreating, left turning and right turning of the wall climbing mechanism 2 can be achieved by controlling the rotating direction of the driving motors; the centrifugal fan 201 at the top of the negative pressure chamber 202 can draw the air in the negative pressure chamber 202 outwards, thereby forming negative pressure in the negative pressure chamber 202; the edge of the chassis 203 is provided with a sealing skirt surrounding the chassis for a circle; through the cooperation of the centrifugal fan 201, the negative pressure cavity 202 and the sealing skirt, the pressure of the wall climbing mechanism 2 on the wall surface is generated; when the pressure is large enough, the wall climbing mechanism 2 can be tightly attached to the wall surface; at this time, the crack repairing device can be driven to move on the wall surface by controlling the driving wheel 211.
The chassis 203 is movably provided with a U-shaped support 6, a bottom plate of the U-shaped support 6 is provided with a screw rod seat 601, the screw rod seat 601 is provided with a screw rod 602, a top plate of the U-shaped support 6 is provided with a screw rod motor 603, and an output shaft of the screw rod motor 603 is connected with the screw rod 602 through a coupling 604; the screw rod 602 is further provided with a support 605, and the support 605 is connected with the fixed disk 1; the support 605 is provided with an internal thread matched with the screw rod, the fixed disk 1 is clamped between the two plates of the support 605 and fixed through bolts, the screw rod is driven to rotate through the screw rod motor 603, the support 605 slides up and down and drives the fixed disk 1 and the rotary cylinder 4 to move up and down, and the distance between the rotary cylinder 4 and the wall surface is adjusted.
The fixed disk 1 is provided with a motor support 102 for mounting a rotating motor 101, and a motor output shaft 104 of the rotating motor 101 is connected with the rotating cylinder 4 through a connecting seat 103.
A hole for penetrating through the air blowing pipe 5 is formed in the fixed disc 1; and a pipe joint 501 for connecting an air source is arranged at an air inlet of the air blowing pipe 5, and an air outlet of the air blowing pipe 5 is connected with an air blowing pipe nozzle 51.
As shown in fig. 3, the blow pipe head 51 includes a joint 511 for connecting the blow pipe 5 and a trumpet-shaped head 512; the connector 511 is provided with an external thread, and the air blow pipe 5 is provided with an internal thread matched with the external thread; a cover plate 513 is welded on the spray head 512, an air hole 514 is formed in the cover plate 513, an elastic tissue 515 is further arranged on the outer side of the cover plate 513, and the joint 511 is arranged; when the air blowing pipe 5 blows air outwards, the elastic tissue 515 bulges outwards due to the action of air pressure, and when the repairing agent is cooled by the air blowing pipe 5 after being filled, the bulged elastic tissue 515 has a secondary leveling function on the repairing agent filled in the crack, and has a certain protection function on the spray head 512.
The bottom panel 405 of the healing agent chamber 401 is at an acute angle with the side panel 406, which is in the range of 87 °.
A mending agent output pipe 402 is arranged at the lowest position of the bottom plate 405, a hose 407 is connected to the mending agent output pipe 402, a mending agent nozzle 7 is installed on the hose 407, and the hose 407 and the mending agent nozzle 7 can be connected in a clamping manner; the mending agent spray head 7 is connected to a piston rod of an air cylinder 409 through a connecting bracket 408, and the air cylinder 409 is installed on the inner wall of the rotary cylinder 4; when the mending agent needs to be filled in the crack, the piston rod of the air cylinder 409 is pushed out to push the mending agent nozzle 7 arranged on the piston rod to the crack, and the mending agent is filled in the crack, and the mending agent nozzle 7 moves along with the movement of the piston rod of the air cylinder 409 because the mending agent nozzle 7 is arranged on the hose 407.
As shown in fig. 4 to 5, the mending agent spray head 7 comprises a spray nozzle 701 and a scraper 702; the nozzle 701 is arranged in the mending agent spray head 7, and the nozzle 701 is conical; the scraping plate 702 is positioned on the outer side of the mending agent spray head 7 and is flush with the spray nozzle 701; when the mending agent is filled in the crack, the mending agent is firstly smoothed by the arranged scraping plate 702 along with the movement of the mending device when the mending agent is filled, and the part of the scraping plate 702, which is contacted with the mending agent, is coated with Teflon so as to prevent the mending agent from being adhered to the scraping plate 702 to influence the later use.
Be equipped with universal wheel 8 on the outer wall of rotatory section of thick bamboo 4 bottom, when rotating electrical machines 101 drove rotatory section of thick bamboo 4 and rotate, universal wheel 8 has certain supporting role, makes rotatory section of thick bamboo 4 is more steady.
The repairing agent filling device also comprises a control system and a crack detection device, when the crack detection device detects a crack, the control system controls the rotary cylinder to align the air blowing pipe 5 with the crack for cleaning, after the cleaning is completed, the control system controls the rotary motor 101 to rotate the rotary cylinder 4, the repairing agent spray head 7 is aligned with the crack, and the air cylinder 409 is controlled to drive the repairing agent spray head 7 to the crack for repairing agent filling.
The invention can realize forward movement, backward movement, left turning and right turning on the wall through the wall climbing mechanism, is convenient for crack repair work, does not need to manually build a scaffold to carry out crack repair work on cracks at high positions of the wall, not only saves labor force, but also reduces safety accidents.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present invention.
Claims (10)
1. The wall crack repairing device is characterized by comprising a fixed disc (1), wherein wall climbing mechanisms (2) are respectively arranged on two sides of the fixed disc (1), a rotary drum (4) is connected to the fixed disc (1) through a tapered roller bearing (3) in an internal connection mode, a repairing agent chamber (401) is arranged in the rotary drum (4), a repairing agent output pipe (402) is arranged at the bottom of the repairing agent chamber (401), and a repairing agent input pipe (404) for supplementing a repairing agent is arranged on a top plate (403) of the repairing agent chamber (401); and a blowing pipe (5) penetrates through the top of the rotary cylinder (4) and is arranged in the rotary cylinder (4), and a blowing pipe nozzle (51) is arranged on the blowing pipe (5).
2. A wall crack repairing device according to claim 1, characterized in that said wall climbing mechanism (2) comprises a centrifugal fan (201), a negative pressure chamber (202), a chassis (203) and a driving part (21); the bottom of the negative pressure cavity (202) is provided with an air suction hole, the air suction hole penetrates through the chassis (203), and the negative pressure cavity (202) and the chassis (203) are integrally formed; the driving part (21) comprises a driving motor, a driving wheel (211) and a driven wheel (212), and the driving motor is installed on a side plate of the chassis (203).
3. The wall crack repairing device according to claim 2, characterized in that a U-shaped bracket (6) is movably mounted on the chassis (203), a screw rod seat (601) is arranged on a bottom plate of the U-shaped bracket (6), a screw rod (602) is mounted on the screw rod seat (601), a screw rod motor (603) is mounted on a top plate of the U-shaped bracket (6), and an output shaft of the screw rod motor (603) is connected with the screw rod (602) through a coupling (604); the screw rod (602) is further provided with a support (605), and the support (605) is connected with the fixed disc (1).
4. The wall crack repairing device of claim 1, wherein the fixed disc (1) is provided with a motor support (102) for mounting a rotating motor (101), and an output shaft of the rotating motor (101) is connected with the rotating drum (4) through a connecting seat (103).
5. The wall crack repairing device according to claim 4, wherein the fixing plate (1) is provided with a hole for passing through the blowing pipe (5); and a pipe joint (501) used for connecting an air source is arranged at an air inlet of the air blowing pipe (5), and an air outlet of the air blowing pipe (5) is connected with an air blowing pipe nozzle (51).
6. The wall crack repairing apparatus as claimed in claim 5, wherein said blow pipe nozzle (51) comprises a joint (511) for connecting said blow pipe (5) and a horn-shaped nozzle (512); the connector (511) is provided with an external thread, and the gas blow pipe (5) is provided with an internal thread matched with the external thread; the welding has apron (513) on shower nozzle (512), be equipped with gas pocket (514) on apron (513), the outside of apron (513) still is equipped with elastic tissue (515).
7. The wall crack repairing device of claim 1, wherein the bottom plate (405) of the repairing agent chamber (401) is at an acute angle with the side plate (406) in the range of 87 ° to 60 °.
8. The wall crack repairing device according to claim 7, characterized in that a repairing agent output pipe (402) is arranged at the lowest position of the bottom plate (405), a hose (407) is connected to the repairing agent output pipe (402), a repairing agent spray head (7) is installed on the hose (407), the repairing agent spray head (7) is connected to a piston rod of an air cylinder (409) through a connecting bracket (408), and the air cylinder (409) is installed on the inner wall of the rotary cylinder (4).
9. The wall crack repairing apparatus according to claim 8, wherein the repairing agent spray head (7) comprises a spray nozzle (701), a scraper (702); the nozzle (701) is arranged in the mending agent spray head (7), and the nozzle (701) is conical; the scraper (702) is positioned at the outer side of the mending agent spray head (7) and is flush with the spray nozzle (701).
10. A wall crack repairing device according to claim 1, characterized in that the outer wall of the bottom of said rotary drum (4) is provided with universal wheels (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921474314.XU CN211447870U (en) | 2019-09-06 | 2019-09-06 | Wall crack repairing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921474314.XU CN211447870U (en) | 2019-09-06 | 2019-09-06 | Wall crack repairing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211447870U true CN211447870U (en) | 2020-09-08 |
Family
ID=72317397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921474314.XU Expired - Fee Related CN211447870U (en) | 2019-09-06 | 2019-09-06 | Wall crack repairing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211447870U (en) |
-
2019
- 2019-09-06 CN CN201921474314.XU patent/CN211447870U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200908 Termination date: 20210906 |
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| CF01 | Termination of patent right due to non-payment of annual fee |