CN220897563U - Numbering ring for experimental animals - Google Patents
Numbering ring for experimental animals Download PDFInfo
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- CN220897563U CN220897563U CN202323025174.7U CN202323025174U CN220897563U CN 220897563 U CN220897563 U CN 220897563U CN 202323025174 U CN202323025174 U CN 202323025174U CN 220897563 U CN220897563 U CN 220897563U
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- 238000010171 animal model Methods 0.000 title claims abstract description 23
- 241001465754 Metazoa Species 0.000 claims abstract description 34
- 230000007306 turnover Effects 0.000 claims description 7
- 239000003550 marker Substances 0.000 claims description 6
- 125000006850 spacer group Chemical group 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 15
- 230000001680 brushing effect Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000003086 colorant Substances 0.000 description 2
- 238000001727 in vivo Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000699670 Mus sp. Species 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000000249 desinfective effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229920002457 flexible plastic Polymers 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000000451 tissue damage Effects 0.000 description 1
- 231100000827 tissue damage Toxicity 0.000 description 1
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Abstract
The application discloses a numbering ring for experimental animals, which comprises an arc-shaped limiting structure, a locking and fixing structure and a large marking structure; the arc limiting structure comprises a first ring body, a second ring body, a positioning clamping groove and a small marking block; the two ends of the first ring body are respectively and fixedly connected with a second ring body and a locking and fixing structure, and a positioning clamping groove is formed in the second ring body; the small marking block penetrates through the locking and fixing structure to be connected and fixed with the second ring body through the positioning clamping groove on the second ring body. This experimental animal numbering ring, including second ring body, location joint groove, locking fixed knot construct and little mark piece, through with ring body parcel animal body surface, adjust elasticity, put the second ring body on locking fixed knot constructs to with location joint groove joint, realize preliminary fixed, later with little mark piece card in locking fixed knot construct, realize the secondary is fixed, the mark number on its little mark piece realizes distinguishing mark effect.
Description
Technical Field
The utility model relates to the technical field of experimental devices, in particular to a numbering ring for experimental animals.
Background
The current numbering and marking methods of experimental animals comprise pigment brushing and brushing method, branding numbering method, in-vivo buried number numbering method, earhole numbering method, and tag hanging numbering method.
However, the following defects and defects exist in the using process, and the pigment brushing method needs repeated marking along with the update and falling of the hair of animals; branding numbers, earhole numbers and in-vivo embedding numbers belong to invasive operations, damage to animals is caused, and risks such as local infection are caused; the numbering method for the tag is suitable for large animals and small animals, is not easy to operate, and cannot be used for animals of different sizes, so that the utility model provides a numbering ring for experimental animals.
Disclosure of utility model
Aiming at the defects of the prior art, the utility model provides a numbering ring for experimental animals, which is used for solving the problems that the marking is unclear and the numbering ring cannot be suitable for animals with different sizes.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the numbering ring for the experimental animal comprises an arc-shaped limiting structure, a locking and fixing structure and a large marking structure;
The arc limiting structure comprises a first ring body 1, a second ring body 2, a positioning clamping groove 304 and a small marking block 302;
The two ends of the first ring body 1 are respectively and fixedly connected with a second ring body 2 and a locking and fixing structure, and a positioning clamping groove 304 is formed in the second ring body 2;
The small marking block 302 passes through the locking and fixing structure to be clamped with the positioning clamping groove 304 on the second ring body 2, the locking and fixing structure is connected and fixed with the second ring body 2, and the locking and fixing structure is used for tensioning and adjusting the tightness of the second ring body 2 ;
The large marking structure is clamped on the first ring body 1 and is used for increasing the marking area.
Preferably, the locking and fixing structure comprises a spacing grid 201 and a turnover block 301;
The spacing grid 201 is arranged on the upper surface of the second ring body 2; the spacer grid 201 is provided with an assembly groove 202;
the small mark block 302 is provided with a special-shaped positioning block 303 which is correspondingly clamped with the assembly groove 202;
The number of the overturning blocks 301 is two, and the overturning blocks 301 are respectively fixed on two sides of the width direction of the first ring body 1, wherein locking rods 305 are arranged on the overturning blocks 301, and the locking rods 305 are used for being clamped with positioning clamping grooves 304 to clamp and fix the second ring body 2;
the small marking block 302 is clamped in the assembly groove 202 on the spacing grid 201 through a special-shaped positioning block 303, and is used for fastening the overturning block 301.
Preferably, the locking and securing structure includes a rectangular center block 306;
The rectangular center block 306 is arranged at one end of the first ring body 1 far away from the second ring body 2, and a fixing hole 307 is formed in the rectangular center block 306;
A limiting rod 308 which is correspondingly clamped with the fixing hole 307 is arranged on the small mark block 302;
The limiting rod 308 on the small marking block 302 passes through the fixing hole 307 on the rectangular center block 306 and is clamped with the positioning clamping groove 304 for limiting the clamping of the second ring body 2;
A cylinder limiting groove 105 is formed in the first ring body 1, and a limiting post 309 which is correspondingly clamped with the limiting groove 105 is fixedly connected to the lower surface of the second ring body 2;
the limiting post 309 is engaged with the limiting slot 105, so as to fix the first ring body 1 and the second ring body 2 in a clamping manner.
Preferably, the large marker structure includes a large marker block 102;
a clamping rod 103 is fixedly connected to the large marking block 102;
A label clamping groove 101 which is correspondingly clamped with the clamping rod 103 is formed in the first ring body 1;
The large marking block 102 is clamped with the mark clamping groove 101 on the first ring body 1 through the clamping rod 103, so that the large marking block 102 is connected and fixed with the first ring body 1.
Preferably, the first ring body 1 is provided with an expansion contact piece 104, and the expansion contact piece 104 is composed of two flexible boards with the same size;
When the expansion contact piece 104 is not used, two flexible plates are folded on the first ring body 1;
When the expansion contact piece 104 is used, two flexible plates are spread on two sides of the first ring body 1.
Preferably, the rectangular central block 306 is hollow, the second ring 2 passes through the rectangular central block 306, and the limiting post 309 on the second ring 2 is clamped with the post limiting slot 105, so as to fix the second ring 2 with the first ring 1.
Preferably, the spacer bars 201 are provided with the assembly grooves 202 at equal intervals, the bottom of the assembly groove 202 on the turning block 301 is provided with the positioning and clamping groove 304, and the special-shaped positioning block 303 is clamped with the clamping groove 304.
Preferably, the marking block is provided with a digital marking area; the colors of the first ring 1, the second ring 2, the small marker block 302 and the large marker block 102 may be red, orange, yellow, green, cyan, blue and violet.
Preferably, the number of the fixing holes 307 is four, and the fixing holes are uniformly distributed on the rectangular center block 306; the position of the limiting rod 308 on the small mark block 302 is matched with the position distribution of the fixing hole 307; the end of the stop lever 308 is provided with buffer rubber, and the stop lever 308 is clamped in the fixing hole 307 through the buffer rubber.
Preferably, the width of the first ring body 1 and the second ring body 2 is between 2 cm and 4 cm.
Compared with the prior art, the technical scheme provided by the application has the following beneficial effects:
The experimental animal numbering ring comprises a first ring body, a second ring body, a positioning clamping groove, a locking fixing structure, a small marking block and a large marking block, wherein the ring body wraps the animal body surface, the length of the second ring body is adjusted, the second ring body is placed on the locking fixing structure, and the locking fixing structure is clamped with the positioning clamping groove to realize preliminary fixing; then the small marking block is clamped in the locking and fixing structure to realize the fixation again, and the marking numbers on the small marking block realize the distinguishing marking function; the large marking block is clamped on the first ring body, so that the marking area is increased, and the operator can observe conveniently.
Drawings
FIG. 1 is a schematic perspective view of embodiment 1 of the present utility model;
FIG. 2 is an operation diagram of embodiment 1 of the present utility model;
FIG. 3 is a perspective view of embodiment 2 of the present utility model;
Fig. 4 is a schematic view of a fixing structure of embodiment 2 of the present utility model.
In the figure: 1a first ring body, a 101 mark clamping groove, a 102 large mark block, a 103 clamping rod, a 104 enlarged contact piece, a 105 cylinder limit groove, 2 a second ring body, a 201 spacer grid, a 202 assembly groove, a 301 overturning block, a 302 small mark block, a 303 special-shaped positioning block, a 304 positioning clamping groove, a 305 locking rod, a 306 rectangular center block, a 307 fixing hole, a 308 limit rod and a 309 limit column.
Detailed Description
In order to make the present application better understood by those skilled in the art, the following description will make clear and complete descriptions of the technical solutions of the embodiments of the present application with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Referring to fig. 1-2, embodiment 1 of the present application provides a numbering ring for experimental animals, which comprises an arc-shaped limiting structure, a locking and fixing structure and a large marking structure;
The arc limiting structure comprises a first ring body 1, a second ring body 2, a positioning clamping groove 304 and a small marking block 302;
The two ends of the first ring body 1 are respectively and fixedly connected with a second ring body 2 and a locking and fixing structure, and a positioning clamping groove 304 is formed in the second ring body 2;
The small marking block 302 passes through the locking and fixing structure to be clamped with the positioning clamping groove 304 on the second ring body 2, the locking and fixing structure is fixedly connected with the second ring body 2, and the locking and fixing structure is used for clamping and fixing the second ring body 2 ,, and the small marking block 302 is used for distinguishing marks;
The large marking structure is clamped on the first ring body 1 and is used for increasing the marking area.
The locking and fixing structure comprises a spacing grid 201, a turnover block 301, a special-shaped positioning block 303, a locking rod 305 and an assembly groove 202;
The second ring body 2 is provided with a spacing grid 201, one end of the first ring body 1 far away from the second ring body 2 is connected with two overturning blocks 301, and locking rods 305 are arranged on the two overturning blocks 301;
The small marking block 302 is fixedly connected with a special-shaped positioning block 303, and the spacing grid 201 and the overturning block 301 are provided with assembly grooves 202;
The special-shaped positioning block 303 is used for being fixedly clamped with the small marking block 302 and the overturning block 301.
Wherein, the interval is evenly equidistant to leave on the interval bars 201 and is equipped with assembly groove 202, assembly groove 202 bottom on the upset piece 301, the location joint groove 304 of seting up, special-shaped locating piece 303 comprises cuboid block and both ends fixed connection's body of rod, the width and the degree of depth of assembly groove 202 all with the rectangle piece looks adaptation on the special-shaped locating piece 303, the body of rod is with the location joint groove 304 joint on the upset piece 301, the outside of body of rod and locking lever 305 all fixedly connected with protruding rubber piece, prevent unexpected whereabouts after the joint is fixed, two upset pieces 301 are all fixed in the both sides of first ring body 1, the width of first ring body 1 and second ring body 2 is between 2 ~ 4 centimetres, the colour of first ring body 1 and second ring body 2 can be red, orange, yellow, green, blue and purple.
In addition, before use, selecting a ring body with a corresponding size according to the size of the animal body, after the selection is finished, covering the first ring body 1 and the second ring body 2 with the part to be marked, placing the second ring body 2 on the overturning block 301, tightly covering and attaching, and clamping the locking rod 305 in the positioning clamping groove 304 on the second ring body 2 to realize preliminary fixing of the ring bodies; the small pressing mark block 302 is clamped in the assembly groove 202 after primary fixing is completed through the special-shaped positioning block 303, and the turnover block 301 is subjected to secondary limiting, so that accidental falling of animals caused by movement is prevented; the assembly grooves 202 are formed in the spacer grid 201 and the overturning blocks 301, so that friction force is increased in the installation process, and the installation stability between the components is improved.
Referring to fig. 3-4, embodiment 2 of the present application provides a numbering ring for experimental animals, and the locking and fixing structure comprises a rectangular central block 306, a fixing hole 307, a cylinder limiting groove 105, a limiting post 309 and a limiting rod 308;
a rectangular center block 306 is arranged at one end, far away from the second ring body 2, of the first ring body 1, and a fixing hole 307 is formed in the rectangular center block 306;
The first ring body 1 is provided with a cylinder limiting groove 105, the second ring body 2 is provided with a limiting column 309 clamped with the cylinder limiting groove 105, the limiting rod 308 is fixed on the small mark block 302, and the limiting rod 308 is used for being clamped with the fixing hole 307.
The first ring body 1 and the second ring body 2 are made of flexible rubber and have certain elasticity, the rectangular center block 306 is hollow, the second ring body 2 passes through the rectangular center block 306, the limiting column 309 is clamped with the column limiting groove 105, the limiting rod 308 is clamped with the positioning clamping groove 304 on the second ring body 2 through the fixing hole 307, the end part of the limiting rod 308 is provided with buffer rubber, the number of the fixing holes 307 and the limiting rod 308 is four, the arrangement interval of the fixing holes 307 is identical to the interval of the positioning clamping groove 304, and the column limiting groove 105 and the positioning clamping groove 304 are both positioned at the center of the ring body.
In addition, the ring body is wrapped on the animal body surface, the second ring body 2 is inserted into the rectangular central block 306, the relative length is adjusted, and the second ring body 2 which is prolonged out of the rectangular central block 306 is clamped in the cylinder limiting groove 105 through the limiting column 309, so that preliminary fixing is realized; the limiting rod 308 passes through the fixing hole 307 to be clamped with the positioning clamping groove 304, so that secondary fixing is completed and accidental detachment is prevented;
When the device is used, after the suitable ring bodies are selected and adapted, the second ring body 2 passes through the rectangular center block 306, the length is adjusted, and the first ring body 1 and the second ring body 2 are initially limited through the clamping connection of the limiting columns 309 and the column limiting grooves 105; then, the small marking block 302 is pressed, the limiting rod 308 passes through the fixing hole 307 and is inserted into the positioning clamping groove 304, so that the second ring body 2 is secondarily fixed, and the marking number on the outer side of the second ring body is convenient for operators to observe.
The large marking structure comprises a mark clamping groove 101 arranged on the first ring body 1, a clamping rod 103 clamped with the mark clamping groove 101 is arranged on the inner side of the mark clamping groove 101, a large marking block 102 is fixedly arranged on the outer side of the clamping rod 103, an expansion contact piece 104 is arranged on the first ring body 1, the expansion contact piece 104 consists of two flexible plates with the same size, and when the expansion contact piece 104 is not used, the two flexible plates are folded on the first ring body 1;
When the expansion contact piece 104 is used, two flexible plates are spread on two sides of the first ring body 1.
The marking block is provided with a digital marking area; the colors of the first ring body 1 and the second ring body 2 can be red, orange, yellow, green, cyan, blue and purple, and the large marking block 102 is made of flexible plastic materials.
When the animal body is large, and the ring body is easy to fall off, the enlarged contact piece 104 is opened, the contact area between the first ring body 1 and the animal is enlarged, the friction force is increased, accidental falling is prevented, when the animal body is large and the small marking block 302 cannot be visually observed, the large marking block 102 is pressed, the clamping rod 103 of the large marking block is clamped in the mark clamping groove 101, and further, the long-distance observation by operators is facilitated; the color of the outer part of the ring body can be approximately distinguished from the animal types, and then the secondary confirmation is carried out according to the marking blocks, so that the marking requirements of different types and different purposes can be realized; the marking points in two forms are confirmed, so that the actual requirements of diversity can be met;
the marking number is waterproof, if a functional experiment, such as a water maze experiment, is carried out, the mice need to swim in the water, and the marking effect is not affected;
The marking material is soft, does not influence animal activities, and has no influence on the imaging examination related to experiments; the cost performance is high, and the recycling is realized;
The noninvasive mark does not hurt animals, does not cause pain to the animals, and avoids the injury of experimenters caused by excessive struggling of experimental animals.
The working principle of the embodiment is as follows:
(1) The ring body is wrapped on the animal body surface, the tightness is adjusted, the second ring body 2 is placed on the locking and fixing structure and is clamped with the positioning clamping groove 304, primary fixing is achieved, then the small marking block is clamped on the locking and fixing structure, secondary fixing is achieved, and the marking number on the small marking block 302 achieves the distinguishing marking effect; when the ring body is suitable for large-scale animal marking, the large marking block 102 is clamped in the mark clamping groove 101 through the clamping rod 103, so that operators can conveniently and rapidly identify the animal body through the large marking block 102.
(2) The device is not affected by hair renewal and falling, does not harm animals, can be used for disinfecting and recycling, can be used for animals with different sizes, does not affect animal activities, and does not generate obvious pressure on local tissues to cause tissue damage.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application 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 scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims (10)
1. A numbering ring for laboratory animals, characterized in that: comprises an arc-shaped limiting structure, a locking and fixing structure and a large marking structure;
The arc limiting structure comprises a first ring body (1), a second ring body (2), a positioning clamping groove (304) and a small marking block (302);
Two ends of the first ring body (1) are fixedly connected with a second ring body (2) and a locking and fixing structure respectively, and a positioning clamping groove (304) is formed in the second ring body (2);
The small marking block (302) passes through the locking and fixing structure to be clamped with the positioning clamping groove (304) on the second ring body (2), the locking and fixing structure is fixedly connected with the second ring body (2), and the locking and fixing structure is used for clamping and fixing the second ring body (2) ,, and the small marking block (302) is used for distinguishing marks;
The large marking structure is clamped on the first ring body (1) and is used for increasing the marking area.
2. A numbering ring for laboratory animals as claimed in claim 1, wherein: the locking and fixing structure comprises a spacing grid (201) and a turnover block (301);
The spacing grid (201) is arranged on the upper surface of the second ring body (2); the spacer grid (201) is provided with an assembly groove (202);
The small marking block (302) is provided with a special-shaped positioning block (303) which is correspondingly clamped with the assembly groove (202);
The number of the turnover blocks (301) is two, the turnover blocks are respectively fixed on two sides of the width direction of the first ring body (1), locking rods (305) are arranged on the turnover blocks (301), and the locking rods (305) are used for being clamped with the positioning clamping grooves (304) to clamp and fix the second ring body (2);
The small marking blocks (302) are clamped in the assembly grooves (202) on the spacing grid (201) through special-shaped positioning blocks (303) and are used for fastening the overturning blocks (301).
3. A numbering ring for laboratory animals as claimed in claim 1, wherein: the locking fixation structure comprises a rectangular center block (306);
Two ends of the first ring body (1) are fixedly connected with a rectangular center block (306) and the second ring body (2) respectively, and a fixing hole (307) is formed in the rectangular center block (306);
A limiting rod (308) which is correspondingly clamped with the fixing hole (307) is arranged on the small marking block (302);
A limiting rod (308) on the small marking block (302) penetrates through a fixing hole (307) on the rectangular center block (306) to be clamped with the positioning clamping groove (304) for limiting the clamping of the second ring body (2);
A cylinder limiting groove (105) is formed in the first ring body (1), and a clamping limiting column (309) corresponding to the limiting groove (105) is fixedly connected to the lower surface of the second ring body (2);
The limiting column (309) is clamped with the limiting groove (105) to fix the second ring body (2).
4. A numbering ring for laboratory animals as claimed in claim 1, wherein: the large marker structure comprises a large marker block (102);
A clamping rod (103) is fixedly connected to the large marking block (102);
a label clamping groove (101) which is correspondingly clamped with the clamping rod (103) is formed in the first ring body (1);
The large marking block (102) is clamped with the mark clamping groove (101) on the first ring body (1) through the clamping rod (103), so that the large marking block (102) is connected and fixed with the first ring body (1).
5. A numbering ring for laboratory animals as claimed in claim 1, wherein: an expansion contact piece (104) is arranged on the first ring body (1), and the expansion contact piece (104) consists of two flexible plates with the same size;
when the expansion contact piece (104) is not used, the two flexible plates are folded on the first ring body (1);
When the expansion contact piece (104) is used, two flexible plates are flatly arranged on two sides of the first ring body (1).
6. A numbering ring for laboratory animals as claimed in claim 3, wherein: the rectangular center block (306) is hollow, the second ring body (2) passes through the rectangular center block (306), and a limiting column (309) on the second ring body (2) is clamped with the column limiting groove (105) for fixing the second ring body (2).
7. A numbering ring for laboratory animals as claimed in claim 2, wherein: the assembly grooves (202) are formed in the interval grating (201) at equal intervals, the positioning clamping grooves (304) are formed in the bottoms of the assembly grooves (202) in the overturning blocks (301), and the special-shaped positioning blocks (303) are clamped with the clamping grooves (304).
8. The numbering ring for laboratory animals according to claim 4, wherein: the marking block is provided with a digital marking area; the first ring body (1), the second ring body (2), the small marking block (302) and the large marking block (102) can be red, orange, yellow, green, cyan, blue and purple.
9. A numbering ring for laboratory animals as claimed in claim 3, wherein: the number of the fixing holes (307) is four, and the fixing holes are uniformly distributed on the rectangular center block (306); the limiting rods (308) on the small marking blocks (302) are matched with the position distribution of the fixing holes (307); the end part of the limiting rod (308) is provided with buffer rubber, and the limiting rod (308) is clamped in the fixing hole (307) through the buffer rubber.
10. A numbering ring for laboratory animals as claimed in claim 1, wherein: the widths of the first ring body (1) and the second ring body (2) are 2-4 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323025174.7U CN220897563U (en) | 2023-11-09 | 2023-11-09 | Numbering ring for experimental animals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323025174.7U CN220897563U (en) | 2023-11-09 | 2023-11-09 | Numbering ring for experimental animals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220897563U true CN220897563U (en) | 2024-05-07 |
Family
ID=90907042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323025174.7U Active CN220897563U (en) | 2023-11-09 | 2023-11-09 | Numbering ring for experimental animals |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220897563U (en) |
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2023
- 2023-11-09 CN CN202323025174.7U patent/CN220897563U/en active Active
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