CN219461167U - Negative pressure blood sampling pen - Google Patents
Negative pressure blood sampling pen Download PDFInfo
- Publication number
- CN219461167U CN219461167U CN202320519422.4U CN202320519422U CN219461167U CN 219461167 U CN219461167 U CN 219461167U CN 202320519422 U CN202320519422 U CN 202320519422U CN 219461167 U CN219461167 U CN 219461167U
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- Prior art keywords
- sleeve
- cover
- column
- limiting
- fixed cover
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- 238000010241 blood sampling Methods 0.000 title claims abstract description 31
- 239000008280 blood Substances 0.000 claims abstract description 19
- 210000004369 blood Anatomy 0.000 claims abstract description 19
- 230000007246 mechanism Effects 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims description 10
- 230000000903 blocking effect Effects 0.000 claims description 3
- 230000007423 decrease Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 230000009471 action Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
Landscapes
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The utility model discloses a negative pressure blood sampling pen, which comprises a sleeve, a pressing part, a detachable impact part and a needle outlet part, wherein the sleeve is provided with a needle outlet part; the pressing part comprises a mounting sleeve which is connected with the upper part of the sleeve in a threaded manner, a moving column which is connected in the sleeve in a sliding manner, and a pressing cap which is connected with the upper end of the moving column in a threaded manner; the movable column is provided with a piston disc; the upper part of the mounting sleeve is provided with an annular flange; the lower edge of the pressing cap is provided with a clamping ring, when the pressing cap is connected to the moving column, the clamping ring is positioned below the annular flange, and the piston disc is positioned in the sleeve; an annular supporting table is arranged on the inner wall of the sleeve, a pressure spring is arranged outside the moving column, and the pressure spring is arranged between the piston disc and the annular supporting table; a limiting mechanism is arranged at the part of the sleeve, which is positioned below the annular supporting table; the lower end of the impact part is inserted with a blood taking needle, and the needle outlet part is covered outside the blood taking needle and is detachably connected with the lower end of the impact part; the bottom of the needle outlet part is provided with a needle outlet hole, and when the moving column moves upwards from the lower position, the impact part is used for pushing the blood taking needle to extend out and retract back into the needle outlet hole.
Description
Technical Field
The utility model relates to the technical field of blood sampling equipment, in particular to a negative pressure blood sampling pen.
Background
The blood sampling pen is a pen-shaped small blood sampling device which is matched with a disposable blood sampling needle for collecting blood samples of human body peripheral. When the existing blood sampling pen is used, the piston moves downwards by the aid of the push rod, then a needle outlet hole of the blood sampling pen is plugged at a blood sampling position, when the piston is reset and moves upwards, micro negative pressure is generated inside the blood sampling pen, skin at the blood sampling position is sucked upwards, and when the blood sampling needle is ejected out, the blood sampling needle can be rapidly pierced. The existing negative pressure blood sampling pen is manufactured by adopting a 3d printing technology, so that the shell of the blood sampling pen is not detachable except the needle outlet part, and the shell is integrated into one piece, therefore, when the blood sampling pen is used for a long time, when the parts inside the blood sampling pen are damaged, the whole blood sampling pen can not be maintained, and only scrapped.
Disclosure of Invention
In order to solve the technical problems, the utility model adopts the following technical scheme:
a negative pressure blood sampling pen comprises a sleeve, a pressing part positioned at the upper part of the sleeve, an impact part detachably connected at the lower part of the sleeve, and a needle outlet part positioned at the lower end of the impact part; the pressing part comprises a mounting sleeve connected with the upper part of the sleeve in a threaded manner, a moving column connected in the sleeve in a sliding manner, and a pressing cap connected with the upper end of the moving column in a threaded manner; a piston disc matched with the sleeve is arranged at the middle part of the movable column; the inner diameter of the mounting sleeve is smaller than that of the sleeve, and an annular flange extending inwards is arranged at the upper part of the mounting sleeve; a clamping ring is arranged at the lower edge of the pressing cap, and is positioned below the annular flange and the piston disc is positioned in the sleeve when the pressing cap is connected to the moving column through threads; an annular supporting table is arranged on the inner wall of the sleeve, a compression spring is sleeved outside the movable column, and the compression spring is clamped between the piston disc and the annular supporting table; a limiting mechanism for limiting the moving column to be located at the uppermost position or the lowermost position is arranged at the part, located below the annular supporting table, of the sleeve; the lower end of the impact part is inserted with a blood taking needle, and the needle outlet part is covered outside the blood taking needle and is detachably connected with the lower end of the impact part; the bottom of needle-out portion is provided with out the pinhole, when the movable column is upwards moved by the below position, impact portion is used for promoting the blood taking needle and stretches out and withdraw out the pinhole.
Further, the impact part comprises a connecting cover positioned at the lower part, an impact piece inserted in the connecting cover and a fixed cover sleeved outside the connecting cover and the impact piece; the connecting cover is connected with the fixed cover; the outer wall of the fixed cover is provided with external threads, and the fixed cover is in threaded connection with the lower part of the sleeve; the impact piece comprises an inserting sleeve which is in sliding connection with the inner wall of the connecting cover, a limiting cover which is sleeved at the upper end of the inner side of the inserting sleeve and has a downward opening, a mounting cover which is sleeved at the lower end of the inner side of the inserting sleeve and has a downward opening, and a magnetic attraction column which is positioned in the limiting cover; the plug bush is plugged in a chute formed in the inner wall of the connecting cover; the side wall of the limiting cover is in clearance fit with the side wall of the fixed cover; the magnetic attraction column sequentially penetrates through the tops of the limiting cover and the fixed cover and is in sliding connection with the limiting cover and the fixed cover; a limiting block for limiting the magnetic suction column in the limiting cover is arranged at the bottom of the magnetic suction column; a small spring sleeved outside the magnetic suction column is arranged in the limiting cover; a large spring sleeved outside the installation cover is arranged in the connection cover, and the large spring is positioned between the plug bush and the connection cover; the mounting cover penetrates through the fixed cover and is connected with the fixed cover in a sliding manner; the blood taking needle is inserted into the mounting cover; a through hole matched with the magnetic attraction column is formed in the movable column, and a magnet is arranged in the through hole; when the movable column is positioned at the lowest position, the magnet and the upper end of the magnetic attraction column are attracted together, and the small spring is in a compressed state at the moment; when the moving column moves upwards, the magnet is separated from the magnetic attraction column.
Further, the limiting mechanism comprises a limiting ring positioned in the sleeve, a connecting block positioned on the side wall of the limiting ring, and a clamping block positioned at the upper edge of the inner side of the limiting ring; the limiting ring is respectively abutted with the lower surface of the annular flange and the upper surface of the fixed cover; an annular groove is formed in the outer wall of the lower part of the movable column, and the outer diameter of the movable column gradually decreases from the annular groove to the bottom of the movable column; the clamping block is an arc-shaped strip matched with the annular groove; the side wall of the sleeve is provided with a pressing hole corresponding to the connecting block; the connecting block extends into the pressing hole, a rebound rubber button is arranged on the connecting block and used for blocking the pressing hole, and part of the rubber button is positioned outside the sleeve; when the pressing cap is pressed downwards, the moving column moves downwards until the clamping block is clamped into the annular groove, so that the moving column is fixed; when the rubber button is pressed, the clamping block moves in the direction away from the moving column until the clamping block is separated from the annular groove, and the moving column is reset.
Further, on the side wall of the piston disc contacted with the sleeve, on the side wall of the fixed cover contacted with the sleeve, and on the side wall of the fixed cover contacted with the needle outlet part, sealing rings for sealing are arranged.
The utility model has the beneficial effects that: according to the negative pressure blood sampling pen, the sleeve and the mounting sleeve can be detached, and the pressing cap and the moving column can be detached, so that the negative pressure blood sampling pen can be detached from the upper part of the sleeve, the moving column can be pulled out, and the spring and the sealing ring in the negative pressure blood sampling pen can be replaced. In addition, the impact part of the utility model can be detached from the sleeve as well, and the connecting cover and the fixed cover can be detached, so that the spring and the impact part in the connecting cover can be replaced; the limiting mechanism can be replaced, and when the limiting ring and the clamping block are damaged, the impact part can be detached firstly, and then the limiting mechanism is replaced from the lower part of the sleeve; therefore, all the components of the utility model can be detached and replaced, and compared with the integrally formed blood sampling pen, the utility model has lower maintenance cost and can be independently replaced for one component.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a cross-sectional view of the utility model;
FIG. 3 is a schematic view of the A-A direction of the present utility model;
reference numerals: 1. a sleeve; 2. a mounting sleeve; 3. pressing the cap; 4. a needle outlet part; 5. a blood taking needle; 6. a moving column; 7. a piston disc; 8. a seal ring; 9. an annular flange; 10. a clasp; 11. a magnet; 12. a through hole; 13. a pressure spring; 14. an annular support table; 15. a limiting ring; 16. a clamping block; 17. an annular groove; 18. a connecting block; 19. a rubber button; 20. a connection cover; 21. a large spring; 22. a fixed cover; 23. a plug bush; 24. a chute; 25. a mounting cover; 26. a limiting cover; 27. a small spring; 28. a limiting block; 29. and a magnetic attraction column.
Detailed Description
The technical solution of the present utility model will be further described with reference to fig. 1 to 3 and examples, so that those skilled in the art can more clearly understand the content of the technical solution.
A negative pressure blood sampling pen comprises a sleeve 1, a pressing part positioned at the upper part of the sleeve 1, an impact part detachably connected at the lower part of the sleeve 1, and a needle outlet part 4 positioned at the lower end of the impact part.
The pressing part comprises a mounting sleeve 2 which is connected with the upper part of the sleeve 1 in a threaded manner, a movable column 6 which is connected in the sleeve 1 in a sliding manner, and a pressing cap 3 which is connected with the upper end of the movable column 6 in a threaded manner; a piston disc 7 matched with the sleeve 1 is arranged in the middle of the movable column 6; and a sealing ring is arranged on the side wall of the piston disc and used for forming a seal with the inner wall of the sleeve. The inner diameter of the mounting sleeve 2 is smaller than the inner diameter of the sleeve 1, so that a step is formed at the connecting part of the mounting sleeve and the sleeve 1. The upper part of the mounting sleeve is provided with an annular flange 9 extending inwards; a clamping ring 10 is arranged at the lower edge of the pressing cap 3, when the pressing cap 3 is connected to the moving column 6 in a threaded manner, the clamping ring 10 is positioned below the annular flange 9, the piston disc 7 is positioned in the sleeve 1 and is positioned below the step; an annular supporting table 14 is arranged on the inner wall of the sleeve 1, a pressure spring 13 is sleeved outside the movable column 6, and the pressure spring 13 is clamped between the piston disc 7 and the annular supporting table 14.
The pressing part is required to be pressed when in use, after long-term pressing, the sealing ring, the pressure spring and the like of the piston disc are possibly damaged, and the blood sampling pen in the embodiment can be pulled out of the movable column from the upper part of the sleeve, so that the sealing ring, the pressure spring and the like are replaced.
The impact part comprises a connecting cover 20 positioned at the lower part, an impact piece inserted in the connecting cover 20 and a fixed cover 22 sleeved outside the connecting cover 20 and the impact piece; the connecting cover 20 is connected with the fixed cover 22; an external thread is arranged on the outer wall of the fixed cover 22, and the fixed cover 22 is in threaded connection with the lower part of the sleeve 1; the impact piece comprises a plug bush 23 which is in sliding connection with the inner wall of the connecting cover 20, a limiting cover 26 which is sleeved at the upper end of the inner side of the plug bush 23 and has a downward opening, a mounting cover 25 which is sleeved at the lower end of the inner side of the plug bush 23 and has a downward opening, and a magnetic attraction column 29 which is positioned in the limiting cover 26;
the plug bush 23 is plugged in a chute 24 formed on the inner wall of the connecting cover 20; the side wall of the limiting cover 26 is in clearance fit with the side wall of the fixed cover 22; the magnetic attraction column 29 sequentially penetrates through the tops of the limiting cover 26 and the fixed cover 22 and is in sliding connection with the limiting cover 26 and the fixed cover 22; a limiting block 28 for limiting the magnetic attraction column 29 in the limiting cover 26 is arranged at the bottom of the magnetic attraction column; a small spring 27 sleeved outside the magnetic suction column 29 is arranged in the limiting cover 26; a large spring 21 sleeved outside the mounting cover 25 is arranged in the connecting cover 20, and the large spring 21 is positioned between the plug bush 23 and the connecting cover 20; the mounting cover 25 penetrates through the fixed cover 22 and is connected with the fixed cover 22 in a sliding manner; the blood taking needle 5 is inserted into the mounting cover 25; the needle outlet part 4 is covered outside the blood taking needle 5 and is detachably connected with the lower end of the impact part; the bottom of the needle outlet part 4 is provided with a needle outlet hole, and when the movable column 6 moves upwards from the lowest position, the impact part is used for pushing the blood taking needle 5 to extend and retract into the needle outlet hole.
The side wall of the fixed cover 22, which is contacted with the sleeve 1, and the side wall of the fixed cover 22, which is contacted with the needle outlet part 4, are respectively provided with a sealing ring 8 for sealing.
A through hole 12 matched with the magnetic attraction column 29 is arranged in the movable column 6, and a magnet 11 is arranged in the through hole 12; when the movable column 6 is positioned at the lowest position, the magnet 11 and the upper end of the magnetic attraction column 29 are attracted together, and the small spring 27 is in a compressed state at the moment; when the moving column 6 moves upward, the magnet 11 and the magnetic attraction column 29 are separated.
A limiting mechanism for limiting the position of the moving column 6 at the uppermost or lowermost part is arranged on the sleeve 1 at the position below the annular supporting table 14; the limiting mechanism comprises a limiting ring 15 positioned in the sleeve 1, a connecting block 18 positioned on the side wall of the limiting ring 15, and a clamping block 16 positioned at the upper edge of the inner side of the limiting ring 15; the limiting ring 15 is respectively abutted with the lower surface of the annular flange 9 and the upper surface of the fixed cover 22; an annular groove 17 is formed in the outer wall of the lower part of the movable column 6, and the outer diameter of the movable column 6 gradually decreases from the annular groove 17 to the bottom of the movable column; the clamping block 16 is a circular arc-shaped strip matched with the annular groove 17; the side wall of the sleeve 1 is provided with a pressing hole corresponding to the connecting block 18; the connecting block 18 extends into the pressing hole, and a resilient rubber button 19 is arranged on the connecting block 18, the rubber button 19 is used for blocking the pressing hole, and part of the rubber button 19 is located outside the sleeve 1.
Working principle: when the pressing cap 3 is pressed downwards, the moving column 6 moves downwards, the piston disc moves downwards along with the moving column, the pressure spring is gradually compressed by the piston disc, when the moving column moves to the position of the limiting ring, the moving column pushes the clamping block on the limiting ring, and as the inclined surface is arranged on the side wall of the bottom of the moving column, the clamping block is gradually pushed to move to one side until the clamping block 16 is clamped into the annular groove 17, so that the moving column 6 is fixed, and at the moment, the magnet 11 contacts with the top of the magnetic attraction column, so that the magnet 11 and the magnetic attraction column are adsorbed together; then the blood sampling part is plugged at the needle outlet hole of the needle outlet part, then the rubber button 19 is pressed, the clamping block 16 moves in the direction away from the moving column 6 until the clamping block is separated from the annular groove 17, the pressure spring pushes the moving column 6 to reset upwards, at the moment, micro negative pressure is formed in the blood sampling pen, and the skin of the blood sampling part is lifted upwards; when the movable column moves upwards, the magnetic attraction column is pulled upwards by the magnet, the small spring is compressed, then when the movable column moves upwards continuously, the magnetic attraction column is separated from the magnet, the magnetic attraction column moves downwards under the action of the small spring, meanwhile, the impact part is pushed to move downwards, the large spring is compressed, the blood taking needle extends out of the needle hole to puncture the skin, and finally, the blood taking needle retracts into the needle outlet part under the action of the large spring, so that the blood taking process is completed.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.
Claims (4)
1. A negative pressure blood sampling pen comprises a sleeve (1), a pressing part positioned at the upper part of the sleeve (1), an impact part detachably connected at the lower part of the sleeve (1), and a needle outlet part (4) positioned at the lower end of the impact part; the method is characterized in that: the pressing part comprises a mounting sleeve (2) which is connected with the upper part of the sleeve (1) in a threaded manner, a movable column (6) which is connected in the sleeve (1) in a sliding manner, and a pressing cap (3) which is connected with the upper end of the movable column (6) in a threaded manner; a piston disc (7) matched with the sleeve (1) is arranged at the middle part of the movable column (6); the inner diameter of the mounting sleeve (2) is smaller than that of the sleeve (1), and an annular flange (9) extending inwards is arranged at the upper part of the mounting sleeve; a clamping ring (10) is arranged at the lower edge of the pressing cap (3), when the pressing cap (3) is connected to the moving column (6) in a threaded mode, the clamping ring (10) is located below the annular flange (9), and the piston disc (7) is located in the sleeve (1); an annular supporting table (14) is arranged on the inner wall of the sleeve (1), a pressure spring (13) is sleeved outside the movable column (6), and the pressure spring (13) is clamped between the piston disc (7) and the annular supporting table (14);
a limiting mechanism for limiting the moving column (6) to be positioned at the uppermost part or the lowermost part is arranged on the sleeve (1) at the part below the annular supporting table (14);
the lower end of the impact part is inserted with a blood taking needle (5), and the needle outlet part (4) is covered outside the blood taking needle (5) and is detachably connected with the lower end of the impact part; the bottom of the needle outlet part (4) is provided with a needle outlet hole, and when the movable column (6) moves upwards from the lowest position, the impact part is used for pushing the blood taking needle (5) to extend and retract the needle outlet hole.
2. The negative pressure lancet of claim 1, wherein: the impact part comprises a connecting cover (20) positioned at the lower part, an impact piece inserted in the connecting cover (20) and a fixed cover (22) sleeved outside the connecting cover (20) and the impact piece; the connecting cover (20) is connected with the fixed cover (22); an external thread is arranged on the outer wall of the fixed cover (22), and the fixed cover (22) is in threaded connection with the lower part of the sleeve (1);
the impact piece comprises a plug bush (23) which is in sliding connection with the inner wall of the connecting cover (20), a limiting cover (26) which is sleeved at the upper end of the inner side of the plug bush (23) and has a downward opening, a mounting cover (25) which is sleeved at the lower end of the inner side of the plug bush (23) and has a downward opening, and a magnetic attraction column (29) which is positioned in the limiting cover (26);
the plug bush (23) is plugged in a chute (24) formed in the inner wall of the connecting cover (20); the side wall of the limiting cover (26) is in clearance fit with the side wall of the fixed cover (22); the magnetic attraction column (29) sequentially penetrates through the tops of the limiting cover (26) and the fixed cover (22) and is in sliding connection with the limiting cover (26) and the fixed cover (22); a limiting block (28) for limiting the magnetic attraction column (29) in the limiting cover (26) is arranged at the bottom of the magnetic attraction column; a small spring (27) sleeved outside the magnetic suction column (29) is arranged in the limiting cover (26); a large spring (21) sleeved outside the mounting cover (25) is arranged in the connecting cover (20), and the large spring (21) is positioned between the plug bush (23) and the connecting cover (20); the mounting cover (25) penetrates through the fixed cover (22) and is connected with the fixed cover (22) in a sliding manner; the blood taking needle (5) is inserted into the mounting cover (25);
a through hole (12) matched with the magnetic attraction column (29) is formed in the movable column (6), and a magnet (11) is arranged in the through hole (12); when the movable column (6) is positioned at the lowest position, the magnet (11) and the upper end of the magnetic attraction column (29) are adsorbed together, and the small spring (27) is in a compressed state at the moment; when the moving column (6) moves upward, the magnet (11) and the magnetic attraction column (29) are separated.
3. A negative pressure lancet according to claim 2, wherein: the limiting mechanism comprises a limiting ring (15) positioned in the sleeve (1), a connecting block (18) positioned on the side wall of the limiting ring (15), and a clamping block (16) positioned at the upper edge of the inner side of the limiting ring (15); the limiting ring (15) is respectively abutted with the lower surface of the annular flange (9) and the upper surface of the fixed cover (22); an annular groove (17) is formed in the outer wall of the lower part of the movable column (6), and the outer diameter of the movable column (6) gradually decreases from the annular groove (17) to the bottom of the movable column; the clamping block (16) is a circular arc-shaped strip matched with the annular groove (17); the side wall of the sleeve (1) is provided with a pressing hole corresponding to the connecting block (18); the connecting block (18) extends into the pressing hole, a rebound rubber button (19) is arranged on the connecting block (18), the rubber button (19) is used for blocking the pressing hole, and part of the rubber button is positioned outside the sleeve (1); when the pressing cap (3) is pressed downwards, the moving column (6) moves downwards until the clamping block (16) is clamped into the annular groove (17), so that the moving column (6) is fixed; when the rubber button (19) is pressed, the clamping block (16) moves in a direction away from the moving column (6) until the clamping block is separated from the annular groove (17), and the moving column (6) is reset.
4. A negative pressure lancet according to claim 3, wherein: the piston disc (7) is arranged on the side wall contacted with the sleeve (1), the fixed cover (22) is arranged on the side wall contacted with the sleeve (1), and the fixed cover (22) is arranged on the side wall contacted with the needle outlet part (4) and is provided with a sealing ring (8) for sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320519422.4U CN219461167U (en) | 2023-03-17 | 2023-03-17 | Negative pressure blood sampling pen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320519422.4U CN219461167U (en) | 2023-03-17 | 2023-03-17 | Negative pressure blood sampling pen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219461167U true CN219461167U (en) | 2023-08-04 |
Family
ID=87435957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320519422.4U Active CN219461167U (en) | 2023-03-17 | 2023-03-17 | Negative pressure blood sampling pen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219461167U (en) |
-
2023
- 2023-03-17 CN CN202320519422.4U patent/CN219461167U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 701-3, Floor 7, Unit E3, No. 6, Dingsheng Street, Jindai Industrial Park, Guancheng Hui District, Zhengzhou City, Henan Province, 450000 Patentee after: Henan Jiayu Zhichuang Technology Co.,Ltd. Country or region after: China Address before: 701-3, Floor 7, Unit E3, No. 6, Dingsheng Street, Jindai Industrial Park, Guancheng Hui District, Zhengzhou City, Henan Province, 450000 Patentee before: Henan Maishitong Technology Co.,Ltd. Country or region before: China |
|
| CP03 | Change of name, title or address |