CN216103689U - Plastic press rotary bottle cap and plastic packaging bottle - Google Patents
Plastic press rotary bottle cap and plastic packaging bottle Download PDFInfo
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- CN216103689U CN216103689U CN202122310653.8U CN202122310653U CN216103689U CN 216103689 U CN216103689 U CN 216103689U CN 202122310653 U CN202122310653 U CN 202122310653U CN 216103689 U CN216103689 U CN 216103689U
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Abstract
The utility model relates to a field of packing especially relates to a plastics are pressed and are revolved bottle lid and plastic packaging bottle, and plastics are pressed and are revolved bottle lid and locate the inner cup in the enclosing cover including enclosing cover and cover, and the enclosing cover inner wall is provided with the card and blocks the piece, and the inner cup outer wall is provided with the firmware of inserting that can match the joint with the card and blocks the piece, is provided with a plurality of locating parts in inserting solid below on the inner cup outer wall. When the free end of the limiting part is raised from the outer wall of the inner cover, the bottom end of the outer cover can be abutted against the limiting part, a distance is reserved between the clamping piece and the inserting piece, the outer cover is not connected with the inner cover, the inner cover cannot be driven to rotate by rotating the outer cover, and the bottle cap of the packaging bottle cannot be opened; when pressing the locating part and making it paste at the inner cup outer wall, press the enclosing cover downwards, the relative inner cup of enclosing cover is along axial slip and entangle the locating part, and the card is fixed and is inserted solid matching joint, makes enclosing cover and inner cup fixed connection, and rotatory enclosing cover can drive the inner cup and rotate together this moment, can open or screw up the plastics packing bottle.
Description
Technical Field
The application relates to the field of packaging, in particular to a plastic press rotary bottle cap and a plastic packaging bottle.
Background
Most of the existing plastic packaging bottles comprise a bottle body and a bottle cap in threaded connection with the bottle body, and the packaging bottles can be easily opened or closed by rotating the bottle cap.
In view of the above-mentioned related technologies, the inventor found that when a package bottle contains medicines, bleaches, disinfectants, and other articles which are not suitable for children to contact, in the absence of supervision, children may open the bottle cap by themselves, eat by mistake, or contact the articles therein, which threatens the physical and life safety of children.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that the bottle cap is easily unscrewed, the application provides a plastic pressure rotary bottle cap and a plastic packaging bottle.
In a first aspect, the application provides a plastic press-spinning bottle cap, which adopts the following technical scheme:
a plastic press-rotating bottle cap comprises an outer cap and an inner cap sleeved in the outer cap, wherein a clamping piece is arranged on the inner wall of the outer cap, an inserting piece capable of being matched and clamped with the clamping piece is arranged on the outer wall of the inner cap, a plurality of limiting pieces are arranged on the outer wall of the inner cap below the inserting piece, one end of each limiting piece is fixedly connected to the outer wall of the inner cap, the other end of each limiting piece is a free end, and the free ends of the limiting pieces can be rolled and attached to the outer wall of the inner cap or tilted from the outer wall of the inner cap; the outer cover can axially slide to the upper part of the limiting part relative to the inner cover, so that the limiting part limits the outer cover; when the free end of the limiting piece is tilted from the outer wall of the inner cover, the bottom end of the outer cover can be abutted against the limiting piece, and a distance is reserved between the clamping piece and the inserting piece; when the free end of the limiting piece is coiled and attached to the outer wall of the inner cover, the outer cover can slide relative to the inner cover along the axial direction to sleeve the limiting piece, and the clamping and fixing piece is clamped and connected with the inserting and fixing piece in a matching mode, so that the outer cover is fixedly connected with the inner cover; the inner wall of the inner cover is provided with threads.
Through adopting above-mentioned technical scheme, plastics pressure revolves bottle lid and includes enclosing cover and inner cup, is provided with the locating part on the inner cup outer wall, and locating part one end fixed connection is on the inner cup outer wall, the other end is the free end, and the locating part free end can be rolled up and paste on the inner cup outer wall or from the inner cup outer wall perk. When the free end of the limiting part is tilted, the bottom end of the outer cover is abutted against the limiting part, the clamping piece of the inner wall of the outer cover is not connected with the inserting piece of the outer wall of the inner cover, at the moment, the rotating outer cover cannot drive the inner cover to rotate, the rotating outer cover is in an idle state, and the plastic packaging bottle cannot be unscrewed. When pressing the locating part and making it paste at the inner cup outer wall, press the enclosing cover downwards, the relative inner cup of enclosing cover is along axial slip and entangle the locating part, and the card is fixed and is inserted solid matching joint, makes enclosing cover and inner cup fixed connection, and rotatory enclosing cover can drive the inner cup and rotate together this moment, can open or screw up the plastics packing bottle.
Preferably, the clamping piece comprises a clamping ring arranged in the outer cover, and a plurality of clamping blocks are arranged at the bottom of the clamping ring; the inserting and fixing piece comprises an inserting and fixing ring arranged outside the inner cover, the inserting and fixing ring is positioned below the clamping ring, and the top of the inserting and fixing ring is provided with a clamping groove capable of being matched and clamped with the clamping block.
Through adopting above-mentioned technical scheme, press the enclosing cover downwards, the fixture block inserts in the draw-in groove, makes enclosing cover and inner cup fixed connection, and rotatory enclosing cover can drive the inner cup rotatory, opens the packing bottle lid.
Preferably, a first mark for marking the position of the clamping block is arranged on the outer wall of the outer cover, and a second mark for marking the position of the clamping block is arranged on the inner cover.
Through adopting above-mentioned technical scheme, only when fixture block and draw-in groove correspond from top to bottom, press the enclosing cover and just can realize the joint of fixture block and draw-in groove. Be provided with the first sign of mark fixture block position on the enclosing cover outer wall, be provided with the second sign of mark fixture block position on the inner cup, through aliging first sign and second sign, press the joint of the realization fixture block that the enclosing cover can convenient and fast and draw-in groove.
Preferably, the clamping piece comprises a clamping ring arranged in the outer cover, and the bottom of the clamping ring is provided with continuous clamping teeth; the inserting and fixing piece comprises an inserting and fixing ring arranged outside the inner cover, the inserting and fixing ring is positioned below the clamping ring, and the top of the inserting and fixing ring is provided with a tooth groove capable of being matched and clamped with the clamping teeth.
Through adopting above-mentioned technical scheme, be continuous between the latch, need not additionally align latch and draw-in groove, when pressing the enclosing cover, latch and draw-in groove can be in the same place with easier joint.
Preferably, the limiting member is a plastic sheet structure with uniform thickness.
By adopting the technical scheme, when the free end of the limiting part tilts up, the bottom end of the outer cover can abut against the limiting part, and at the moment, the pressing outer cover cannot slide downwards along the axial direction; when the free end of the pressing limiting part is coiled and attached to the outer wall of the inner cover, the outer cover can slide relative to the inner cover to sleeve the limiting part when pressed, the clamping part and the inserting fixing part are clamped in a matched mode, the outer cover and the inner cover are fixedly connected, and the outer cover can be rotated to drive the inner cover to rotate together to open the plastic packaging bottle.
Preferably, the limiting part is a structure with a thin fixed end and a thick free end, and a groove capable of accommodating the free end of the limiting part is arranged on the outer wall of the inner cover in a matched manner.
By adopting the technical scheme, the stability of the limit part in abutting joint with the outer cover can be improved due to the thick free end of the limit part, when the free end of the limit part is tilted, the thick end of the limit part abuts against the bottom end of the outer cover, at the moment, the outer cover and the inner cover are not connected, the inner cover cannot be driven to rotate together by rotating the outer cover, and the bottle cap of the plastic packaging bottle cannot be opened; when pressing the free end of locating part and pressing it into the recess, the locating part no longer blocks the enclosing cover, presses the enclosing cover downwards, makes enclosing cover and inner cup fixed connection, and rotatory enclosing cover can drive the inner cup and rotate together, opens the plastics packing bottle.
Preferably, a limiting ring is arranged on the outer wall of the inner cover, the outer diameter of the limiting ring is larger than the inner diameter of the clamping piece, and a distance for the clamping piece to move up and down is reserved between the limiting ring and the inserting piece.
By adopting the technical scheme, the outer diameter of the limiting ring is larger than the inner diameter of the clamping piece, and when the outer cover is pulled upwards, the limiting ring can block the clamping piece, so that the outer cover cannot be separated from the inner cover completely; and a distance for the vertical movement of the clamping piece is reserved between the limiting ring and the inserting piece, so that the outer cover and the inner cover are connected or not connected.
In a second aspect, the present application provides a plastic packaging bottle, which adopts the following technical scheme:
a plastic packaging bottle comprises a plastic press-rotating bottle cap and a bottle body, wherein an external thread matched with an internal thread of an inner cover is arranged on the neck of the bottle body.
By adopting the technical scheme, the inner cover is in threaded connection with the neck of the bottle body, and only when the outer cover of the plastic press-spinning bottle cap is connected with the inner cover, the outer cover is rotated to drive the inner cover to rotate and unscrew the bottle cap of the packaging bottle; when the outer cover is not connected with the inner cover, the rotating outer cover cannot drive the inner cover to rotate, and the bottle cap of the packaging bottle cannot be opened.
In summary, the present application includes at least one of the following beneficial technical effects:
the plastic bottle cap comprises an outer cap and an inner cap, wherein a limiting piece is arranged on the outer wall of the inner cap, one end of the limiting piece is fixedly connected to the outer wall of the inner cap, the other end of the limiting piece is a free end, and the free end of the limiting piece can be rolled and attached to the outer wall of the inner cap or tilted from the outer wall of the inner cap; when the free end of the limiting part is tilted, the bottom end of the outer cover abuts against the limiting part, the clamping piece on the inner wall of the outer cover is not connected with the inserting piece on the outer wall of the inner cover, and at the moment, the rotating outer cover cannot drive the inner cover to rotate, and the rotating outer cover is in an idle state and cannot unscrew the plastic packaging bottle; when the limiting part is pressed to be attached to the outer wall of the inner cover, the outer cover is pressed downwards, the outer cover slides relative to the inner cover along the axial direction and sleeves the limiting part, the clamping and fixing part and the inserting and fixing part are clamped and connected in a matching mode, the outer cover and the inner cover are fixedly connected, the outer cover is rotated again at the moment, the inner cover can be driven to rotate together, and the plastic packaging bottle can be opened or screwed down;
when the clamping block corresponds to the clamping groove up and down, the clamping connection of the clamping block and the clamping groove can be realized only by pressing the outer cover, and the clamping connection of the clamping block and the clamping groove can be realized conveniently and quickly by aligning the first mark on the outer cover and the second mark on the inner cover;
be provided with the spacing ring on the inner cup outer wall in this application, the external diameter of spacing ring is greater than the internal diameter of card fastener, and when upwards pulling the enclosing cover, the spacing ring can block card fastener, makes the enclosing cover can not break away from the inner cup completely and separate.
Drawings
FIG. 1 is an exploded view of a plastic screw cap according to example 1 of the present application;
FIG. 2 is an exploded view of another angle of the plastic cap of example 1 of the present application;
FIG. 3 is an exploded view of a plastic screw cap according to example 2 of the present application;
FIG. 4 is an exploded view of a plastic screw cap according to example 3 of the present application;
FIG. 5 is an enlarged schematic view of portion A of FIG. 4;
fig. 6 is an overall schematic view of a plastic packaging bottle according to embodiment 4 of the present application.
Description of reference numerals: 1. an outer cover; 11. a clamping ring; 111. a clamping block; 112. clamping teeth; 2. an inner cover; 21. a limiting member; 22. inserting and fixing the ring; 221. a card slot; 222. a tooth socket; 23. a groove; 24. a limiting ring; 3. a first identifier; 4. a second identifier; 5. a bottle body.
Detailed Description
The present application is described in further detail below with reference to figures 1-6.
The embodiment of the application discloses a plastic pressure rotary bottle cap.
Example 1:
referring to fig. 1 and 2, a plastics pressure revolves bottle lid, including enclosing cover 1 and the inner cup 2 of cover locating in enclosing cover 1, enclosing cover 1 inner wall is provided with the card firmware, inner cup 2 outer wall is provided with the firmware of inserting that can match the joint with the card firmware, be provided with a plurality of locating parts 21 in inserting the firmware below on the inner cup 2 outer wall, locating part 21 one end fixed connection is on inner cup 2 outer wall, the other end is the free end, and locating part 21 free end can roll up and paste on inner cup 2 outer wall or from inner cup 2 outer wall perk. When the free end of the limiting part 21 is tilted from the outer wall of the inner cap 2, the bottom end of the outer cap 1 is abutted against the limiting part 21, and a distance is reserved between the clamping part and the inserting part, at the moment, the outer cap 1 and the inner cap 2 are not connected, the inner cap 2 cannot be driven to rotate by rotating the outer cap 1, and the rotating outer cap 1 is in an idle state and cannot be unscrewed from a plastic packaging bottle. When pressing locating part 21 and making it paste in inner cup 2 outer wall, press down enclosing cover 1, enclosing cover 1 is relative inner cup 2 along axial slip and entangle locating part 21, and the card is fixed a piece and is inserted the solid matching joint, makes enclosing cover 1 and inner cup 2 fixed connection, rotates enclosing cover 1 this moment and can drive inner cup 2 and rotate together, can open or screw up the plastic packaging bottle.
After the bottle cap of the plastic packaging bottle is screwed down, the outer cap 1 is pulled upwards, the limiting part 21 is exposed at the moment, the bottom end of the outer cap 1 is abutted against the upper part of the limiting part 21, the outer cap 1 and the inner cap 2 are not connected, and the bottle cap is not easy to open. The inner wall of the inner cover 2 is provided with threads for connecting with a plastic packaging bottle. The outer side wall of the outer cover 1 in the embodiment 1 is provided with anti-skid grains, so that the outer cover 1 can be rotated conveniently.
Referring to fig. 1 and 2, the clamping member includes a clamping ring 11 disposed in the outer cover 1, and a plurality of clamping blocks 111 are disposed at the bottom of the clamping ring 11; the inserting and fixing piece comprises an inserting and fixing ring 22 arranged outside the inner cover 2, the inserting and fixing ring 22 is arranged below the clamping ring 11, and the top of the inserting and fixing ring 22 is provided with a clamping groove 221 which can be matched and clamped with the clamping block 111. In the embodiment 1, four latch blocks 111 and four latch grooves 221 are provided, the outer cover 1 is pressed downward, and the latch blocks 111 are inserted into the latch grooves 221, so that the outer cover 1 and the inner cover 2 are fixedly connected. Only when the latch 111 corresponds to the latch groove 221 up and down, the latch 111 can be engaged with the latch groove 221 by pressing the outer cover 1. In order to facilitate the clamping of the clamping block 111 and the clamping groove 221, the outer wall of the outer cover 1 is provided with a first mark 3 for marking the clamping block position 111, the visible position of the inner cover 2 is provided with a second mark 4 for marking the clamping groove position 221, the first mark 3 and the second mark 4 are aligned, and the clamping of the clamping block 111 and the clamping groove 221 can be conveniently and rapidly realized by pressing the outer cover 1.
Referring to fig. 1 and 2, a limiting ring 24 is arranged on the outer wall of the inner cover 2, the outer diameter of the limiting ring 24 is larger than the inner diameter of the clamping ring 11, and when the outer cover 1 is pulled upwards, the limiting ring 24 can block the clamping ring 11, so that the outer cover 1 cannot be separated from the inner cover 2 completely; meanwhile, a distance for the clamping piece to move up and down is reserved between the limiting ring 24 and the inserting piece, so that the situation that the inner cover 2 can be directly screwed due to the fact that more parts of the inner cover 2 are exposed when the outer cover 1 is pulled upwards is avoided, the distance between the limiting ring 24 and the inserting piece on which the fixing ring 22 is inserted cannot be too large, and the functional requirements can be met. The axial length of the inner cap 2 that can be exposed by pulling up the outer cap 1 in this embodiment 1 is not more than six millimeters.
Referring to fig. 1 and 2, the limiting member 21 is a plastic sheet structure with uniform thickness, and when the free end of the limiting member 21 is tilted, the bottom end of the outer cap 1 can abut against the limiting member 21, and at this time, the pressing outer cap 1 cannot slide downward along the axial direction. In this embodiment 1, two limiting members 21 are disposed, and are respectively symmetrically disposed on the outer wall of the inner lid 2. Align first sign 3 and second sign 4, press the free end of locating part 21 to the direction that is close to inner cup 2, make locating part 21 roll up and paste on inner cup 2 outer wall, press down enclosing cover 1, make enclosing cover 1 and inner cup 2 connect, rotatory enclosing cover 1 can drive inner cup 2 and rotate together and open the plastic packaging bottle. The bottle lid of direct rotation, children see the easy simulation in back, need align first sign 3 and second sign 4 among this embodiment 1, need press two locating parts 21 to roll up and paste behind 2 outer walls of inner cup simultaneously, and enclosing cover 1 just can push down, increases the degree of difficulty that the simulation was implemented, avoids the easy bottle lid that opens of children.
The implementation principle of embodiment 1 of the present application is specifically as follows:
Example 2:
referring to fig. 3, the present embodiment 2 is different from the embodiment 1 in that the fastening member includes a fastening ring 11 disposed in the outer cover 1, and the bottom of the fastening ring 11 is provided with continuous latches 112; the inserting and fixing piece comprises an inserting and fixing ring 22 arranged outside the inner cover 2, the inserting and fixing ring 22 is positioned below the clamping ring 11, and the top of the inserting and fixing ring 22 is provided with a tooth groove 222 capable of being matched and clamped with the clamping teeth 112. When the outer cap 1 is pressed, the latch teeth 112 are continuous with each other, so that the latch teeth 112 and the catch grooves 222 can be easily inserted together. Compared with embodiment 1, embodiment 2 reduces the steps of alignment before pressing, and can be applied to different scenes, for example, people with poor eyesight can use the plastic press-and-turn bottle cap of embodiment 2.
Example 3:
referring to fig. 4 and 5, the present embodiment 3 is different from the embodiment 1 in that the stopper 21 has a thin fixed end and a thick free end. In this embodiment 3, the thickness of the limiting member 21 gradually changes from the fixed end to the free end, and the thickness of the free end of the limiting member 21 can increase the stability of the abutting outer cover 1; meanwhile, the outer wall of the inner cover 2 is provided with a groove 23 capable of accommodating the free end of the limiting member 21 in a matching manner. When the free end of the limiting part 21 is tilted, the thick free end of the limiting part 21 is abutted against the bottom end of the outer cover 2, at the moment, the outer cover 1 is not connected with the inner cover 2, the outer cover 1 cannot be rotated to drive the inner cover 2 to rotate together, and the bottle cap of the plastic packaging bottle cannot be opened; when the free end of the limiting part 21 is pressed and pressed into the groove 23, the limiting part 21 does not block the outer cover 1 any more, the outer cover 1 is pressed downwards, the outer cover 1 and the inner cover 2 are fixedly connected, and the outer cover 1 can be rotated to drive the inner cover 2 to rotate together to open the plastic packaging bottle.
The embodiment of the application also discloses a plastic packaging bottle.
Example 4:
referring to fig. 6, a plastic packing bottle comprises a plastic press-screwing bottle cap and a bottle body 5, wherein the neck of the bottle body 5 is provided with an external thread matched with the internal thread of the inner cap 2. The inner cap 2 is in threaded connection with the neck of the bottle body 5, and only when the outer cap 1 of the plastic press-spinning bottle cap is connected with the inner cap 2, the inner cap 2 can be driven to rotate to unscrew the bottle cap on the packaging bottle by rotating the outer cap 1; when the outer cover 1 is not connected with the inner cover 2, the rotating outer cover 1 cannot drive the inner cover 2 to rotate, and the bottle cap of the packaging bottle cannot be opened.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a plastics pressure bottle lid which characterized in that: the clamping device comprises an outer cover (1) and an inner cover (2) sleeved in the outer cover (1), wherein a clamping piece is arranged on the inner wall of the outer cover (1), an inserting piece capable of being matched and clamped with the clamping piece is arranged on the outer wall of the inner cover (2), a plurality of limiting pieces (21) are arranged below the inserting piece on the outer wall of the inner cover (2), one end of each limiting piece (21) is fixedly connected to the outer wall of the inner cover (2), the other end of each limiting piece (21) is a free end, and the free ends of the limiting pieces (21) can be rolled and attached to the outer wall of the inner cover (2) or tilted from the outer wall of the inner cover (2); the outer cover (1) can axially slide to the upper part of the limiting piece (21) relative to the inner cover (2) so that the limiting piece (21) limits the outer cover (1); when the free end of the limiting piece (21) is tilted from the outer wall of the inner cover (2), the bottom end of the outer cover (1) can be abutted against the limiting piece (21), and a distance is reserved between the clamping piece and the inserting piece; when the free end of the limiting piece (21) is coiled and pasted on the outer wall of the inner cover (2), the outer cover (1) can slide relative to the inner cover (2) along the axial direction to sleeve the limiting piece (21), and the clamping piece and the inserting piece are clamped in a matching mode, so that the outer cover (1) is fixedly connected with the inner cover (2); the inner wall of the inner cover (2) is provided with threads.
2. The plastic flip top closure of claim 1, wherein: the clamping piece comprises a clamping ring (11) arranged in the outer cover (1), and a plurality of clamping blocks (111) are arranged at the bottom of the clamping ring (11); the inserting and fixing piece comprises an inserting and fixing ring (22) arranged outside the inner cover (2), the inserting and fixing ring (22) is located below the clamping ring (11), and the top of the inserting and fixing ring (22) is provided with a clamping groove (221) capable of being matched and clamped with the clamping block (111).
3. The plastic flip top closure of claim 2, wherein: be provided with the mark on enclosing cover (1) outer wall first sign (3) of fixture block (111) position, enclosing cover (2) is provided with the mark second sign (4) of draw-in groove (221) position.
4. The plastic flip top closure of claim 1, wherein: the clamping piece comprises a clamping ring (11) arranged in the outer cover (1), and continuous clamping teeth (112) are arranged at the bottom of the clamping ring (11); the inserting and fixing piece comprises an inserting and fixing ring (22) arranged outside the inner cover (2), the inserting and fixing ring (22) is located below the clamping ring (11), and a tooth groove (222) capable of being matched and clamped with the clamping teeth (112) is formed in the top of the inserting and fixing ring (22).
5. The plastic flip top closure of claim 1, wherein: the limiting piece (21) is of a plastic sheet structure with uniform thickness.
6. The plastic flip top closure of claim 1, wherein: the locating part (21) is of a structure with a thin fixed end and a thick free end, and a groove (23) capable of accommodating the free end of the locating part (21) is arranged on the outer wall of the inner cover (2) in a matched mode.
7. The plastic flip top closure of claim 1, wherein: a limiting ring (24) is arranged on the outer wall of the inner cover (2), the outer diameter of the limiting ring (24) is larger than the inner diameter of the clamping piece, and a distance for the clamping piece to move up and down is reserved between the limiting ring (24) and the inserting piece.
8. A plastic packaging bottle characterized by: comprising the plastic press-on cap and the body (5) according to any one of claims 1 to 7, the neck of the body (5) being provided with an external thread matching the internal thread of the inner cap (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122310653.8U CN216103689U (en) | 2021-09-24 | 2021-09-24 | Plastic press rotary bottle cap and plastic packaging bottle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122310653.8U CN216103689U (en) | 2021-09-24 | 2021-09-24 | Plastic press rotary bottle cap and plastic packaging bottle |
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| Publication Number | Publication Date |
|---|---|
| CN216103689U true CN216103689U (en) | 2022-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122310653.8U Active CN216103689U (en) | 2021-09-24 | 2021-09-24 | Plastic press rotary bottle cap and plastic packaging bottle |
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| Country | Link |
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| CN (1) | CN216103689U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115500262A (en) * | 2022-10-09 | 2022-12-23 | 信阳农林学院 | Thermostatic type tea-oil camellia tissue culture seedling breeds and uses culture apparatus |
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2021
- 2021-09-24 CN CN202122310653.8U patent/CN216103689U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115500262A (en) * | 2022-10-09 | 2022-12-23 | 信阳农林学院 | Thermostatic type tea-oil camellia tissue culture seedling breeds and uses culture apparatus |
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