CN220529496U - Anti-loosening rotary liquid pen - Google Patents
Anti-loosening rotary liquid pen Download PDFInfo
- Publication number
- CN220529496U CN220529496U CN202322073213.4U CN202322073213U CN220529496U CN 220529496 U CN220529496 U CN 220529496U CN 202322073213 U CN202322073213 U CN 202322073213U CN 220529496 U CN220529496 U CN 220529496U
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- pen
- rotating
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- 239000007788 liquid Substances 0.000 title claims abstract description 43
- 238000009434 installation Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000002537 cosmetic Substances 0.000 abstract description 24
- 230000008023 solidification Effects 0.000 abstract 1
- 238000007711 solidification Methods 0.000 abstract 1
- 230000009471 action Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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- Pens And Brushes (AREA)
Abstract
The utility model is applicable to the technical field of cosmetic pens, and provides an anti-loosening rotary liquid pen which comprises a pen tube, wherein one end of the pen tube is provided with a pen cap, the other end of the pen tube is connected with a tail cap seat, the tail cap seat is arranged in the tail cap, the tail cap is provided with an annular cylindrical structure with an opening at the top, the tail cap comprises a mounting seat, the mounting seat is arranged in the tail cap, the diameter of the mounting seat is smaller than that of the tail cap, and the mounting seat is provided with a cylindrical ring with the bottom connected with the bottom of the tail cap; wherein, the inner wall of mount pad position on is encircled and is provided with two sets of spacing rings. The device has solved the cosmetic liquid in the liquid pen and has deposited the solidification back for a long time, uses great dynamics to rotate, leads to the liquid pen to appear not hard up, and inside cosmetic liquid also probably consequently oozes the problem, carries out multiple fixing through setting up fixing base and axial mounting groove, guarantees that the liquid pen is connected closely, can not take place not hard up condition when rotatory hard up.
Description
Technical Field
The utility model relates to the technical field of cosmetic pens, in particular to a locking rotary liquid pen.
Background
With the development of society and the demands of job sites, liquid cosmetic pens become more attractive products for women because of the characteristics of portability and easiness in making up. The production line of liquid cosmetic pens is also becoming mature. With the continuous development of the production of liquid cosmetic pens, the traditional liquid cosmetic pens with liquid pushing and discharging functions are abandoned gradually, and instead, a rotary liquid cosmetic pen with more uniform liquid discharging and less leakage of cosmetic liquid is adopted.
At present, the existing rotary liquid cosmetic pencil can control the liquid outlet amount of the cosmetic liquid through rotation. However, in the actual operation, the cosmetic liquid is decomposed into a semisolid state at the outlet due to the fact that the cosmetic liquid is stored in the cosmetic pen for a long time. When the cosmetic liquid is used, the cosmetic liquid can be extruded again by using larger force, and in the rotating process, the larger force can cause the connection between the rear cover part of the cosmetic pen and the pen tube to be loose, and the larger force is needed to be used after the connection is loose, so that the experience is definitely reduced for female users; on the other hand, the back cover and the pen tube are loosened, so that the cosmetic liquid in the pen tube can be leaked. It is therefore desirable to provide a tamper-resistant rotary fluid pen.
Disclosure of Invention
Aiming at the defects existing in the prior art, the utility model aims to provide an anti-loosening rotary liquid pen.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
an anti-loosening rotary liquid pen comprises a pen tube, wherein one end of the pen tube is provided with a pen cap, the other end of the pen tube is connected with a tail cap seat, the tail cap seat is arranged in the tail cap, the tail cap is of an annular cylindrical structure with an opening at the top, the tail cap comprises,
the mounting seat is arranged in the tail cover, the diameter of the mounting seat is smaller than that of the tail cover, and the mounting seat is a cylindrical ring with the bottom connected with the bottom of the tail cover;
wherein, the inner wall of mount pad position on is encircled and is provided with two sets of spacing rings.
The utility model is further provided with: the bottom of the tail cover seat is rotationally connected with the top of the tail cover, a rotating component is arranged in the tail cover seat, the tail cover seat comprises,
the axial mounting grooves are arranged at the bottom of the tail cover seat, a plurality of groups of axial mounting grooves are arranged around the outer side wall of the tail cover seat, and two groups of fixing seats are arranged at one side, far away from the bottom of the tail cover seat, of the axial mounting grooves;
the fixing seats are arranged around the outer side wall of the tail cover seat, and the two groups of fixing seats are arranged at equal intervals.
The utility model is further provided with: two groups of positioning hole slots are symmetrically formed in the top of one side, far away from the tail cover, of the tail cover seat, and the positioning hole slots penetrate through the side wall of the tail cover seat; the tail cover seat is provided with an axial groove near the bottom of the positioning hole, and a plurality of groups of axial grooves are arranged around the axis of the inner wall of the tail cover seat.
The utility model is further provided with: the rotating assembly may comprise a rotating assembly that includes,
the rotating rod is arranged in the tail cover seat and is of a cylindrical structure with a big top and a small bottom, a waist-shaped mounting through hole is formed in the rotating rod, and a ratchet wheel is arranged on the top of one side, far away from the tail cover, in a surrounding manner; the method comprises the steps of,
the threaded rod is arranged inside the rotating rod, the length of the threaded rod is larger than that of the rotating rod, and the threaded rod is round in waist and is provided with a limit ring at the top of one side far away from the tail cover.
The utility model is further provided with: a positioning ring and a rotating ring are arranged between the rotating rod and the threaded rod, the positioning ring is arranged on one side close to the rotating rod, a pawl is arranged on one side of the positioning ring close to the rotating rod, and a plurality of groups of axial ribs are axially and circumferentially arranged on the outer side wall of the positioning ring;
wherein, be provided with the elastic component between locating ring and the swivel becket.
The utility model is further provided with: two groups of positioning grooves are symmetrically arranged on the outer side wall of the top of one side of the rotating ring, which is close to the threaded rod, two groups of clamping parts are symmetrically arranged on the outer side wall of one side of the rotating ring, which is far away from the threaded rod,
the clamping part is located under the positioning groove, a waist round matching hole is formed in the rotating ring in a penetrating mode, and matching threads are arranged on the inner wall of the matching hole in a surrounding mode.
The utility model has the advantages that:
1. the outer side wall of the tail cap seat is provided with an axial mounting groove which can be matched with the pen tube, the tail cap seat is inserted into the pen tube, and the tail cap seat is kept locked. Two groups of fixing seats are symmetrically arranged on the outer side wall of the tail cover seat, connection between the pen tube and the tail cover seat is further enhanced, and the pen tube and the tail cover seat are guaranteed not to be loose under the action of large force.
2. Two groups of cutting parts are symmetrically arranged on the outer side wall of the lower part of the rotating rod, so that the rotating rod can be ensured to be completely inserted into the installation seat. After the rotating rod is completely inserted into the mounting seat, a circle of groove is further formed in the lower portion of the rotating rod to be matched with the limiting ring in the mounting seat, and further tightness of connection of the mascara pen is guaranteed.
3. The dwang sets up to big-end-up's cylinder structure, and dwang upper portion diameter is greater than tail-hood seat bottom opening, lower part diameter is less than tail-hood seat bottom opening for the dwang lower part can pass the tail-hood seat and insert inside the mount pad, realizes the rotation connection of tail-hood seat and tail-hood.
4. Two groups of locating holes are symmetrically arranged at the top of the tail cover seat, and two groups of clamping parts are symmetrically arranged on the outer side wall of the rotating ring. The positioning Kong Caoka joint is consistent in shape and is arranged into an inverted triangle. The locating hole groove can be matched with the clamping part, the rotating ring is inserted into the tail cover seat 4 and is arranged into an inverted triangle shape, so that the rotating ring cannot be separated after being inserted into the tail cover seat, and the connection reliability of the rotating ring and the tail cover seat is ensured.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of the structure of the tail cap;
FIG. 3 is a schematic view of the structure of the tail cap seat;
FIG. 4 is a schematic structural view of a rotating assembly;
FIG. 5 is a schematic view of the positioning ring and the rotating ring;
FIG. 6 is a schematic diagram of an explosive structure of the present utility model;
in the figure: 1. a pen tube; 2. a pen cap; 3. a tail cover; 31. a mounting base; 32. a limiting ring; 4. a tail cap seat; 41. a fixing seat; 42. an axial groove; 43. positioning hole slots; 44. an axial mounting groove; 5. a rotating assembly; 51. a rotating lever; 511. mounting through holes; 512. a ratchet wheel; 52. a threaded rod; 521. a limit ring; 53. a positioning ring; 531. a pawl; 532. an axial rib; 54. a rotating ring; 541. an engagement portion; 542. a positioning groove; 543. a mating hole; 544. matching with threads; 55. an elastic member.
Detailed Description
It should be noted that, without conflict, the embodiments and features of the embodiments in the present application may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.
It is noted that all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs unless otherwise indicated.
In the present utility model, unless otherwise indicated, the terms "upper" and "lower" are used generally with respect to the directions shown in the drawings, or with respect to the vertical, vertical or gravitational directions; also, for ease of understanding and description, "left, right" is generally directed to the left, right as shown in the drawings; "inner and outer" refer to inner and outer relative to the outline of the components themselves, but the above-described orientation terms are not intended to limit the present utility model.
Example 1
Referring to fig. 1-6, the present utility model provides the following technical solutions:
in particular to an anti-loosening rotary liquid pen, which comprises a pen tube 1, a pen cap 2, a tail cap 3, a tail cap seat 4 and a rotary assembly 5.
One end of the pen tube 1 is provided with a pen cap 2, the other end is connected with a tail cap seat 4, the pen cap 2 can seal a liquid outlet of the pen tube 1, and cosmetic liquid at the outlet of the pen tube 1 is prevented from being weathered into a semisolid shape to a certain extent. The tail cap seat 4 is arranged inside the tail cap 3 and is rotationally connected with the pen tube 1 and the tail cap 3.
The tail cover 3 comprises a mounting seat 31 and a limiting ring 32, the tail cover 3 is of an annular cylindrical structure with an open top, and the top of the tail cover 3 can be rotationally connected with the tail cover seat 4. The mount pad 31 sets up inside tail-hood 3, the diameter is less than tail-hood 3, and mount pad 31 sets up to the cylinder ring that the bottom is connected with tail-hood 3 bottom, but the inside dwang 51 of inserting of mount pad 31. Two groups of limiting rings 32 are arranged on the inner wall of the upper position of the mounting seat 31 in a surrounding mode. The two groups of limiting rings 32 are symmetrically arranged, so that the rotating rod 51 can be limited after the rotating rod 51 is inserted into the rotating rod, and the connection tightness of the rotating rod 51 and the tail cover 3 is ensured.
The bottom of the tail cap seat 4 is rotationally connected with the top of the tail cap 3, a rotating assembly 5 is installed inside the tail cap seat, and the tail cap seat 4 comprises a fixed seat 41, an axial groove 42, a positioning hole groove 43 and an axial installation groove 44. The axial mounting grooves 44 are arranged at the bottom of the tail cap seat 4, a plurality of groups of axial mounting grooves 44 are arranged around the outer side wall of the tail cap seat 4, the axial mounting grooves 44 can be matched with the pen tube 1, the tail cap seat 4 is inserted into the pen tube 1, and the tail cap seat 4 is kept locked.
Two groups of fixing seats 41 are arranged on one side, far away from the bottom of the tail cover seat 4, of the axial mounting groove 44, the fixing seats 41 are arranged around the outer side wall of the tail cover seat 4, and the two groups of fixing seats 41 are equidistantly arranged. The two groups of fixing seats 41 can further strengthen the connection between the pen tube 1 and the tail cover seat 4, and ensure that the pen tube 1 and the tail cover seat 4 cannot be loosened under the action of large force.
Two groups of locating hole grooves 43 are symmetrically formed in the top of one side, away from the tail cover 3, of the tail cover seat 4, and the locating hole grooves 43 penetrate through the side wall of the tail cover seat 4. The positioning hole groove 43 is identical in shape to the engagement portion 541 on the rotating ring 54, and both are provided in an inverted triangle shape. The positioning hole groove 43 can be matched with the clamping part 541, and the rotating ring 54 is inserted into the tail cover seat 4, so that the connection reliability of the rotating ring and the tail cover seat is ensured.
The tail cap seat 4 is provided with axial grooves 42 near the bottom of the locating hole groove 43, and the axial grooves 42 are provided with a plurality of groups around the axis of the inner wall of the tail cap seat 4. The axial groove 42 is capable of rotating in cooperation with an axial rib 532 on the outer side wall of the retaining ring 53.
The rotation assembly 5 includes a rotation lever 51, a mounting through hole 511, a ratchet 512, a threaded rod 52, a stop collar 521, a positioning ring 53, a pawl 531, an axial rib 532, a rotation ring 54, an engagement portion 541, a positioning groove 542, an engagement hole 543, engagement threads 544, and an elastic member 55.
The rotating rod 51 is installed inside the tail cover seat 4 and is of a cylindrical structure with a large upper part and a small lower part, the diameter of the upper part of the rotating rod 51 is larger than that of the bottom opening of the tail cover seat 4, and the diameter of the lower part of the rotating rod 51 is smaller than that of the bottom opening of the tail cover seat 4, so that the rotating connection between the tail cover seat 4 and the tail cover 3 is realized while the lower part of the rotating rod 51 can penetrate through the tail cover seat 4 to be inserted into the installation seat 31. Two groups of cutting parts are symmetrically arranged on the outer side wall of the lower part of the rotating rod 51, so that the rotating rod 51 can be ensured to be completely inserted into the mounting seat 31. After the rotating rod 51 is completely inserted into the mounting seat 31, a circle of groove is further arranged at the lower part of the rotating rod 51 to be matched with a limiting ring in the mounting seat 31, so that the connection tightness is further ensured.
The rotary rod 51 is internally provided with a waist-round mounting through hole 511, and a ratchet wheel 512 is circumferentially arranged at the top of one side far away from the tail cover 3. The mounting through hole 511 has a oval shape corresponding to the threaded rod 52 in size, and the threaded rod 52 is inserted therein. Ratchet 512 is engageable with pawl 531 inside retaining ring 53.
The threaded rod 52 is installed inside the rotating rod 51 and has a length greater than that of the rotating rod 51 to ensure that the threaded rod 52 can be inserted into the pen tube 1 by rotating, thereby fully squeezing and releasing the cosmetic liquid inside the pen tube 1. The threaded rod 52 is arranged in a waist shape, and a limit ring 521 is arranged at the top of one side far away from the tail cover 3. The limit ring 521 can be used for extruding the cosmetic liquid in the pen tube 1 on one hand, and can be used for limiting the threaded rod 52 after the threaded rod 52 is fully extended so as to prevent the threaded rod 52 from falling out of the rotary rod 51 on the other hand.
A positioning ring 53 and a rotating ring 54 are arranged between the rotating rod 51 and the threaded rod 52, and an elastic piece 55 is arranged between the positioning ring 53 and the rotating ring 54.
The positioning ring 53 is provided on a side close to the rotating lever 51, and a pawl 531 is provided on a side of the positioning ring 53 close to the rotating lever 51, the pawl 531 being engaged with the ratchet 512. The outer sidewall of the retaining ring 53 is axially circumferentially provided with a plurality of sets of axial ribs 532, the axial ribs 532 engaging the axial grooves 42.
Two groups of positioning grooves 542 are symmetrically arranged on the outer side wall of the top of the side, close to the threaded rod 52, of the rotating ring 54, two groups of clamping portions 541 are symmetrically arranged on the outer side wall of the side, far away from the threaded rod 52, of the rotating ring 54, and the clamping portions 541 are located under the positioning grooves 542. The engaging portion 541 can be inserted into the positioning recess of the tail cap seat 4 with the positioning groove 542 engaged, thereby fixing the rotary ring 54 to the tail cap seat 4.
The rotary ring 54 is internally provided with a waist-round matching hole 543 in a penetrating way, and matching threads 544 are arranged on the inner wall of the matching hole 543 in a surrounding way. The waist circle of the matching hole 543 is consistent with the threaded rod 52, the threaded rod 52 can be inserted into the matching hole 543, and the matching thread 544 is meshed with the thread outside the threaded rod 52.
The working principle of the anti-loosening rotary liquid pen provided by the utility model is as follows:
before the liquid pen is used, each component is installed, the rotating ring 54 is inserted into the threaded rod 52 in a rotating mode through the matching of threads, and then the elastic piece 55 and the positioning ring 53 are installed below the rotating ring 54 in sequence. After the installation, the threaded rod 52 is inserted into the rotating rod 51, the rotating rod 51 is inserted into the tail cap seat 4, and the locking portion 541 is inserted into the positioning hole groove 43 by positioning the positioning groove 542, so that the connection between the rotating assembly 5 and the tail cap seat 4 is completed. Finally, the lower half part of the rotating rod 51 is completely inserted into the mounting seat 31, so that the tail cover seat 4 and the tail cover 3 are connected in a rotating way. After the tail cap 3 is connected with the tail cap seat 4, the tail cap seat 4 is tightly connected inside the pen tube 1 through the dual functions of the axial installation groove 44 on the outer side wall of the tail cap seat and the fixing seat 41.
When a liquid pen is required to be used, the tail cover 3 is slowly rotated, the rotary rod 51 rotates synchronously, and the rotary rod 51 can only rotate unidirectionally under the action of the ratchet wheel 512 and the pawl 531. The rotating rod 51 rotates to drive the rotating ring 54 to move towards the side close to the limit ring 521, the axial groove 42 on the inner wall of the tail cover seat 4 limits the positioning ring 53 to return to the original position, and at the moment, the force generated by the rotation of the positioning ring 53 is transmitted to the rotating ring 54 through the elastic piece 55, and the rotating ring 54 rotates. Since the rotary ring 54 is fixedly mounted in the tail cap seat 4 by the engagement portion 541, the rotary ring 54 does not move toward the stopper 521, but moves the threaded rod 52 relatively toward the inside of the pen container 1 by engagement of the threaded rod 52 with the thread 544, thereby completing squeezing of the cosmetic liquid in the pen container 1 and allowing the cosmetic liquid to ooze out for makeup.
It will be apparent that the embodiments described above are merely some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be implemented in sequences other than those illustrated or described herein.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (6)
1. An anti-loosening rotary liquid pen, which is characterized in that: comprises a pen tube (1), wherein one end of the pen tube (1) is provided with a pen cap (2), the other end of the pen tube is connected with a tail cap seat (4), the tail cap seat (4) is arranged inside a tail cap (3), the tail cap (3) is of an annular cylindrical structure with an opening at the top, the tail cap (3) comprises,
the mounting seat (31), the mounting seat (31) is arranged in the tail cover (3) and is smaller than the tail cover (3) in diameter, and the mounting seat (31) is arranged as a cylindrical ring with the bottom connected with the bottom of the tail cover (3);
wherein, the inner wall of the upper position of the mounting seat (31) is provided with two groups of limiting rings (32) in a surrounding way.
2. The anti-loosening rotary liquid pen as claimed in claim 1, wherein: the bottom of the tail cover seat (4) is rotationally connected with the top of the tail cover (3), a rotating component (5) is arranged in the tail cover seat, the tail cover seat (4) comprises,
the axial mounting grooves (44) are formed in the bottom of the tail cover seat (4), a plurality of groups of axial mounting grooves (44) are formed in the outer side wall of the tail cover seat (4) in a surrounding mode, and two groups of fixing seats (41) are formed in one side, away from the bottom of the tail cover seat (4), of the axial mounting grooves (44);
the fixing seats (41) are arranged around the outer side wall of the tail cover seat (4), and the two groups of the fixing seats (41) are arranged at equal intervals.
3. The anti-loosening rotary liquid pen as claimed in claim 2, wherein: two groups of positioning hole grooves (43) are symmetrically formed in the top of one side, far away from the tail cover (3), of the tail cover seat (4), and the positioning hole grooves (43) penetrate through the side wall of the tail cover seat (4); the tail cover seat (4) is provided with an axial groove (42) near the bottom of the positioning hole groove (43), and the axial groove (42) is provided with a plurality of groups around the axis of the inner wall of the tail cover seat (4).
4. The anti-loosening rotary liquid pen as claimed in claim 2, wherein: the rotating assembly (5) comprises a rotating shaft,
the rotary rod (51) is arranged in the tail cover seat (4) and is of a cylindrical structure with a large upper part and a small lower part, a waist circular installation through hole (511) is formed in the rotary rod (51), and a ratchet wheel (512) is arranged at the top of one side far away from the tail cover (3) in a surrounding mode; the method comprises the steps of,
the threaded rod (52), threaded rod (52) is installed inside dwang (51), length are greater than dwang (51), threaded rod (52) set up to the waist circular, keep away from tail cap (3) one side top and be provided with spacing collar (521).
5. The anti-loosening rotary liquid pen as claimed in claim 4, wherein: a positioning ring (53) and a rotating ring (54) are arranged between the rotating rod (51) and the threaded rod (52), the positioning ring (53) is arranged on one side close to the rotating rod (51), a pawl (531) is arranged on one side of the positioning ring (53) close to the rotating rod (51), and a plurality of groups of axial ribs (532) are axially and circumferentially arranged on the outer side wall of the positioning ring (53);
wherein an elastic piece (55) is arranged between the positioning ring (53) and the rotating ring (54).
6. The anti-loosening rotary liquid pen as claimed in claim 5, wherein: two groups of positioning grooves (542) are symmetrically arranged on the outer side wall of the side of the rotating ring (54) close to the threaded rod (52), two groups of clamping parts (541) are symmetrically arranged on the outer side wall of the side of the rotating ring (54) far away from the threaded rod (52),
the clamping portion (541) is located under the positioning groove (542), a kidney-shaped matching hole (543) is formed in the rotating ring (54) in a penetrating mode, and matching threads (544) are formed in the inner wall of the matching hole (543) in a surrounding mode.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202322073213.4U CN220529496U (en) | 2023-08-03 | 2023-08-03 | Anti-loosening rotary liquid pen |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202322073213.4U CN220529496U (en) | 2023-08-03 | 2023-08-03 | Anti-loosening rotary liquid pen |
Publications (1)
Publication Number | Publication Date |
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CN220529496U true CN220529496U (en) | 2024-02-27 |
Family
ID=89970134
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202322073213.4U Active CN220529496U (en) | 2023-08-03 | 2023-08-03 | Anti-loosening rotary liquid pen |
Country Status (1)
Country | Link |
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CN (1) | CN220529496U (en) |
-
2023
- 2023-08-03 CN CN202322073213.4U patent/CN220529496U/en active Active
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