CN219271807U - Driving propulsion assembly of injection pen - Google Patents
Driving propulsion assembly of injection pen Download PDFInfo
- Publication number
- CN219271807U CN219271807U CN202223425781.8U CN202223425781U CN219271807U CN 219271807 U CN219271807 U CN 219271807U CN 202223425781 U CN202223425781 U CN 202223425781U CN 219271807 U CN219271807 U CN 219271807U
- Authority
- CN
- China
- Prior art keywords
- sleeve
- push rod
- needle insertion
- injection pen
- rod sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The application discloses drive propulsion subassembly of injection pen includes: the push rod sleeve is provided with a mounting channel extending along the axial direction of the push rod sleeve, and one end of the push rod sleeve is provided with a connecting part extending outwards along the radial direction of the push rod sleeve; the rubber plug is arranged on the other end of the push rod body, and the rubber plug is movably arranged in the push rod sleeve along the axial direction of the installation channel; the needle feeding sleeve is characterized in that one end of the needle feeding sleeve is used for pushing a medicine bottle of a pen core, one end of the needle feeding sleeve is provided with a limiting part, the inner side of the needle feeding sleeve is provided with a stopping part, an elastic piece is arranged between the stopping part and the needle feeding sleeve, the stopping part is movable along the radial direction of the needle feeding sleeve, the needle feeding sleeve is sleeved at one end of the push rod sleeve, and a connecting part is positioned between the limiting part and the stopping part to limit the movement of the needle feeding sleeve. The injection pen's of this application drive propulsion subassembly is convenient for advance needle sleeve and push rod sleeve and assembles labour saving and time saving.
Description
Technical Field
The application belongs to the technical field of medical equipment, and particularly relates to a driving propulsion assembly of an injection pen.
Background
At present, an injection pen on the market can automatically inject medicines, but cannot automatically insert needles and cannot realize full automation, and an injection driving device of the injection pen mainly comprises a push rod sleeve, a push rod and a driving piece; the injection driving device of the injection pen mainly comprises a push rod sleeve, a push rod, a driving piece and an injection sleeve; the injection driving means of both injection pens may share some of the same components, wherein the second type of injection pen requires the addition of a needle hub at the end of the push rod hub.
When the existing needle inserting sleeve and the push rod sleeve are assembled, the needle inserting sleeve and the push rod sleeve are fixed by the screw, and the screw is required to be screwed completely to fix the needle inserting sleeve in the assembly process, so that the assembly is time-consuming and labor-consuming.
Disclosure of Invention
The utility model provides a drive propulsion subassembly's of injection pen new technical scheme can solve the inconvenient assembly of needle insertion sleeve among the prior art at least, the problem of wasting time and energy.
Embodiments of the present application provide a drive propulsion assembly for an injection pen, comprising: the push rod sleeve is provided with an installation channel extending along the axial direction of the push rod sleeve, and one end of the push rod sleeve is provided with a connecting part extending outwards along the radial direction of the push rod sleeve; the rubber plug is arranged at one end of the push rod body and used for pushing the pen core, and the other end of the push rod body is movably arranged in the push rod sleeve along the axial direction of the mounting channel; the needle feeding sleeve is characterized in that one end of the needle feeding sleeve is used for pushing a medicine bottle of a pen core, one end of the needle feeding sleeve is provided with a limiting part, the inner side of the needle feeding sleeve is provided with a stopping part, an elastic piece is arranged between the stopping part and the needle feeding sleeve, the stopping part is movable along the radial direction of the needle feeding sleeve, the needle feeding sleeve is sleeved at one end of the push rod sleeve, and the connecting part is positioned between the limiting part and the stopping part to limit the movement of the needle feeding sleeve.
According to the driving propulsion component of the injection pen, the needle feeding sleeve can be limited at one axial end of the push rod sleeve through the matching of the limiting part and one end of the connecting part, the stopping part and the other end of the connecting part can be matched to limit the needle feeding sleeve at the other axial end of the push rod sleeve, so that the needle feeding sleeve can be fixed on the push rod sleeve, and the stopping part and the needle feeding sleeve are connected through the elastic piece so that the stopping part can move, thereby being convenient for assembling the needle feeding sleeve and the push rod sleeve, and saving time and labor.
According to one embodiment of the present application, the side wall of the push rod sleeve is provided with a mating groove, and the connecting portion is formed between one end of the push rod sleeve and the mating groove.
According to one embodiment of the present application, the stopper is formed as a boss extending toward an inner side thereof in a radial direction of the needle insertion sleeve.
According to one embodiment of the application, the abutment is formed as a raised structure.
According to one embodiment of the present application, an end of the abutment portion remote from the limiting portion extends obliquely with respect to an axial direction of the needle insertion sleeve to an outer side of the needle insertion sleeve.
According to one embodiment of the present application, the elastic component is an elastic arm, the side wall of the needle insertion sleeve is provided with a mounting groove, one end of the elastic arm is fixedly connected with the side wall of the mounting groove, and the limiting part is arranged on the inner side of the elastic arm.
According to one embodiment of the present application, the other end of the elastic arm is fixedly connected with the side wall of the mounting groove.
According to one embodiment of the present application, the mounting groove is a through groove, and the width of the mounting groove is greater than the width of the elastic arm.
According to one embodiment of the present application, one end of the connecting portion is attached to the limiting portion, and the other end of the connecting portion is attached to the abutting portion.
According to one embodiment of the present application, the needle insertion sleeve and the push rod sleeve are all integrally formed injection molded parts.
Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.
Drawings
The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, wherein:
FIG. 1 is a schematic illustration of the internal structure of a drive and propulsion assembly of an injection pen according to an embodiment of the present application;
FIG. 2 is a structural exploded view of a drive and propulsion assembly of an injection pen according to an embodiment of the present application;
FIG. 3 is a schematic view of a portion of the structure of a needle hub of a drive propulsion assembly of an injection pen according to an embodiment of the present application;
FIG. 4 is an assembly view of a drive propulsion assembly and an injection drive assembly of an injection pen according to an embodiment of the present application;
fig. 5 is a structural exploded view of a drive propulsion assembly and an injection drive assembly of an injection pen according to an embodiment of the present application.
Reference numerals:
the drive propulsion assembly 1000 of the injection pen;
a push rod sleeve 100; a connection portion 110; a fitting groove 120;
a push rod body 200; a guide rib 210;
an injection drive assembly 2000; a movable bracket 2100; a connector 2110; a motor 2200; a screw 2300;
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc. indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.
The driving propulsion assembly 1000 of the injection pen according to the embodiment of the present application is described in detail below with reference to the accompanying drawings.
As shown in fig. 1 to 3, a driving propulsion assembly 1000 of an injection pen according to an embodiment of the present application includes a push rod sleeve 100, a push rod body 200, and a needle insertion sleeve 300.
Specifically, the push rod sleeve 100 is provided with a mounting channel extending along the axial direction thereof, and one end of the push rod sleeve 100 is provided with a connecting portion 110 extending radially outwardly thereof; one end of the push rod body 200 is used for pushing a rubber plug of a pen core, the pen core is a clamping bottle filled with a medicament, and the other end of the push rod body 200 is movably arranged in the push rod sleeve 100 along the axial direction of the mounting channel; one end of the needle insertion sleeve 300 is used for pushing a bracket for installing a pen core, so that a medicine bottle of the pen core moves synchronously with the bracket, or one end of the needle insertion sleeve 300 directly pushes a medicine bottle of the pen core, so that the medicine bottle of the pen core moves synchronously with the bracket, one end of the needle insertion sleeve 300 is provided with a limiting part 310, the inner side of the needle insertion sleeve 300 is provided with a stopping part 320, an elastic piece 330 is arranged between the stopping part 320 and the needle insertion sleeve 300, the stopping part 320 is movable along the radial direction of the needle insertion sleeve 300, the needle insertion sleeve 300 is sleeved at one end of the push rod sleeve 100, and the connecting part 110 is positioned between the limiting part 310 and the stopping part 320 to limit the movement of the needle insertion sleeve 300.
In other words, the driving propulsion assembly 1000 of the injection pen according to the embodiment of the application mainly comprises a push rod sleeve 100, a push rod body 200 and a needle feeding sleeve 300, wherein the push rod sleeve 100 is configured into a tubular structure, the inside of the push rod sleeve 100 is used as a mounting channel, the side wall of one end of the push rod sleeve 100 is symmetrically provided with a connecting part 110 protruding outwards, the first end of the push rod body 200 is provided with a push block for pushing a rubber plug of a pen core, the second end of the push rod body 200 is movably arranged in the push rod sleeve 100 along the axial direction of the mounting channel, the second end of the push rod body 200 is connected with the driving end of the injection driving assembly 2000 of the injection pen, the needle feeding sleeve 300 is configured into a tubular structure, the needle feeding sleeve 300 is sleeved at the end of the push rod sleeve 100, one end of the needle feeding sleeve 300 is provided with a limiting part 310 matched with one end of the connecting part 110, the inside of the needle feeding sleeve 300 is connected with a stopping part 320 matched with the other end of the connecting part 110 through an elastic piece 330, and the elastic piece 330 is provided with a resilient thrust towards the inside along the radial direction of the needle feeding sleeve 300, so that the connecting part 110 is positioned between the limiting part 310 and the stopping part 320 to fix the axial position of the needle feeding sleeve 300 in the axial direction of the needle feeding sleeve 100.
Therefore, according to the driving propulsion assembly 1000 of the injection pen of the embodiment of the application, the needle insertion sleeve 300 can be limited at one axial end of the push rod sleeve 100 through the matching of the limiting part 310 and one end of the connecting part 110, the needle insertion sleeve 300 can be limited at the other axial end of the push rod sleeve 100 through the matching of the stopping part 320 and the other end of the connecting part 110, so that the needle insertion sleeve 300 can be fixed on the push rod sleeve 100, and the stopping part 320 is connected with the needle insertion sleeve 300 through the elastic piece 330, so that the stopping part 320 can move, and the needle insertion sleeve 300 and the push rod sleeve 100 can be assembled conveniently, so that time and labor are saved.
As shown in fig. 4 to 5, according to one embodiment of the present application, the injection driving assembly 2000 is mainly composed of a movable bracket 2100, a motor 2200 and a screw rod 2300, wherein an installation cavity is provided in the movable bracket 2100, specifically, the movable bracket 2100 is composed of an upper bracket body and a lower bracket body, the side of the upper bracket body and the lower bracket body, which are close to each other, are respectively provided with a stepped groove, the installation cavity is formed by two grooves, so as to facilitate installation and fixation of the motor 2200 and the push rod sleeve 100, one end of the installation cavity is opened, the motor 2200 is fixed in the installation cavity, one end of the push rod sleeve 100, which is far from the needle inlet sleeve 300, is fixed in the installation cavity, one end of the screw rod 2300 is fixedly connected with the output end of the motor 2200, the other end of the screw rod 2300 is inserted into the second end of the push rod body 200 and is in threaded connection with the second end thereof, the side wall of the push rod body 200 is provided with a guide rib 210, the inner side of the push rod sleeve 100 is provided with a guide groove matched with the guide rib 210, and the guide rib 210 is matched with the guide groove, so that the push rod body 200 can be guided in a limited position by matching the guide rib 210. When in use, the push rod body 200 can be driven to move by controlling the motor 2200 to rotate, so that the first end of the push rod body 200 pushes the rubber plug of the pen core to squeeze the liquid medicine in the medicine bottle for injection.
Further, the side wall of the movable bracket 2100 is provided with a connecting member 2110, and the connecting member 2110 is used for being connected with a needle feeding driving member, and the needle feeding driving member can drive the injection assembly 2000 to integrally move, so that the needle feeding sleeve 300 at the end of the push rod sleeve 100 can push the bracket for installing the pen core to move, and the needle connected with the pen core can move.
According to one embodiment of the present application, the sidewall of the push rod sleeve 100 is provided with a mating groove 120, and a connection portion 110 is formed between one end of the push rod sleeve 100 and the mating groove 120.
As shown in fig. 1 to 3, the push rod sleeve 100 is provided with a coupling groove 120 along an axial direction thereof on a sidewall thereof, and the coupling groove 120 may be coupled with a sidewall of the installation cavity to prevent the coupling groove 120 from rotating relative to the movable bracket, and a protruding coupling portion 110 is formed between an end of the push rod sleeve 100 remote from the movable bracket 2100 and the coupling groove 120.
In some embodiments of the present application, the limiter 310 is formed as a boss extending toward the inside of the needle insertion sleeve 300 in the radial direction thereof.
As shown in fig. 3, the limiting part 310 is configured as two arc-shaped boss structures extending to the inner side of the needle insertion sleeve 300, one side of each boss is attached to one end of the push rod sleeve 100 away from the movable bracket 2100, a space exists between the two bosses, and the space corresponds to the position of the stopping part 320 in the axial direction of the needle insertion sleeve 300, so that the stopping part 320 is movable by a tool from the space between the two bosses to detach the needle insertion sleeve 300, and the structure is simple and convenient to manufacture.
According to one embodiment of the present application, the stopper 320 is formed in a convex structure.
As shown in fig. 1 and 3, the abutment portion 320 is configured as a protrusion structure, and has a simple structure, and the needle insertion sleeve 300 can be limited and fixed by attaching one side of the protrusion to the connection portion 110.
In some embodiments of the present application, an end of the stop portion 320 distal from the stop portion 310 extends obliquely with respect to an outer side of the axial needle insertion sleeve 300 of the needle insertion sleeve 300.
As shown in fig. 1 and 3, the stopping portion 320 is configured as a wedge-shaped protrusion structure, and its inclined surface is located at one end of the stopping portion 320 away from the limiting portion 310, and when in installation, the stopping portion 320 can automatically move towards the outside along the radial direction of the needle insertion sleeve 300 by matching the inclined surface with the outside of the push rod sleeve 100, so that the needle insertion sleeve 300 can be installed without using other tools, and the installation of the needle insertion sleeve 300 can be completed in a sleeving manner, so that the operation is simple, and time and labor are saved.
According to one embodiment of the present application, the elastic member 330 is an elastic arm, the sidewall of the needle insertion sleeve 300 is provided with a mounting groove 340, one end of the elastic arm is fixedly connected with the sidewall of the mounting groove 340, and the limiting portion 310 is disposed on the inner side of the elastic arm.
As shown in fig. 3 and 4, the side wall of the needle insertion sleeve 300 is provided with a mounting groove 340, the elastic member 330 is configured as a long elastic arm structure, one end of the elastic arm is fixed on the inner wall of the mounting groove 340, the limiting portion 310 is located at the inner side of the elastic arm, the elastic arm can be transversely arranged or vertically arranged relative to the needle insertion sleeve 300, in addition, the elastic arm can be replaced by a spring or other elastic object, as long as the elastic force radially inwards can be provided by the abutting portion 320, and the connection relationship between the abutting portion 320 and the elastic member 330 can be adaptively changed along with the structure of the elastic member 330.
In some embodiments of the present application, the other end of the resilient arm is fixedly coupled to a sidewall of the mounting groove 340.
As shown in fig. 3 and 4, both ends of the elastic arm are fixedly connected with the side wall of the mounting groove 340, so that the connection part between the elastic arm and the side wall of the mounting groove 340 can be effectively prevented from being broken, and the movable amount of the middle part of the elastic arm is maximum, so that the abutting part 320 is preferably arranged at the middle part of the elastic arm.
According to one embodiment of the present application, the mounting groove 340 is a through groove, and the width of the mounting groove 340 is greater than the width of the resilient arm.
As shown in fig. 1 and 3, the mounting groove 340 is constructed to penetrate the groove structure so as to observe the engagement of the stopper 320 with the connection portion 110, and the mounting groove 340 has a width greater than that of the elastic arm so as to allow the elastic arm to freely move while allowing the stopper 320 to be controlled from the mounting groove 340 by other means.
In some embodiments of the present application, one end of the connecting portion 110 is attached to the limiting portion 310, and the other end of the connecting portion 110 is attached to the abutting portion 320.
As shown in fig. 1, the distance between the limiting portion 310 and the stopping portion 320 is adapted to the thickness of the connecting portion 110, so that two end surfaces of the connecting portion 110, one of which is attached to the limiting portion 310 and the other of which is attached to the stopping portion 320, are adapted to each other, so that the needle insertion sleeve 300 has no movable virtual position in the axial direction relative to the push rod sleeve 100, and the accuracy of needle insertion can be ensured.
According to an embodiment of the present application, the needle insertion sleeve 300 and the push rod sleeve 100 are all injection molded parts formed integrally, and the injection molding mode can be adopted for mass production, so that the production cost can be effectively reduced.
In summary, according to the driving propulsion assembly 1000 of the injection pen according to the embodiment of the application, the needle insertion sleeve 300 can be limited at one axial end of the push rod sleeve 100 by matching the limiting part 310 with one end of the connecting part 110, and the stopping part 320 can limit the needle insertion sleeve 300 at the other axial end of the push rod sleeve 100 by matching the stopping part 320 with the other end of the connecting part 110, so that the needle insertion sleeve 300 can be fixed on the push rod sleeve 100, and the stopping part 320 is connected with the needle insertion sleeve 300 through the elastic piece 330, so that the stopping part 320 can move, thereby being convenient for assembling the needle insertion sleeve 300 and the push rod sleeve 100, and saving time and labor.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A drive propulsion assembly for an injection pen, comprising:
the push rod sleeve (100), the push rod sleeve (100) is provided with a mounting channel extending along the axial direction of the push rod sleeve, and one end of the push rod sleeve (100) is provided with a connecting part (110) extending outwards along the radial direction of the push rod sleeve;
the pen refill comprises a push rod body (200), wherein one end of the push rod body (200) is used for pushing a rubber plug of a pen refill, and the other end of the push rod body (200) is movably arranged in the push rod sleeve (100) along the axial direction of the mounting channel;
needle insertion sleeve (300), the one end of needle insertion sleeve (300) is used for promoting the medicine bottle of refill, the one end of needle insertion sleeve (300) is equipped with spacing portion (310), the inboard of needle insertion sleeve (300) is equipped with and ends support portion (320), end support portion (320) with be equipped with elastic component (330) between needle insertion sleeve (300), end support portion (320) are along the radial movable of needle insertion sleeve (300), needle insertion sleeve (300) cover is located the one end of push rod sleeve (100), just connecting portion (110) are located spacing portion (310) with end support portion (320) between with the restriction needle insertion sleeve (300) activity.
2. The drive propulsion assembly of an injection pen according to claim 1, characterized in that a side wall of the push rod sleeve (100) is provided with a mating groove (120), the connecting portion (110) being formed between one end of the push rod sleeve (100) and the mating groove (120).
3. The drive propulsion assembly of an injection pen according to claim 1, wherein the limit stop (310) is formed as a boss extending towards the inside of the needle insertion sleeve (300) in the radial direction thereof.
4. The drive propulsion assembly of an injection pen according to claim 1, wherein the abutment (320) is formed as a raised structure.
5. The drive propulsion assembly of an injection pen according to claim 4, wherein an end of the stop portion (320) remote from the limit portion (310) extends obliquely relative to an axial direction of the needle insertion sleeve (300) outside the needle insertion sleeve (300).
6. A driving and pushing assembly of an injection pen according to claim 3, wherein the elastic member (330) is an elastic arm, the side wall of the needle insertion sleeve (300) is provided with a mounting groove (340), one end of the elastic arm is fixedly connected with the side wall of the mounting groove (340), and the limiting part (310) is arranged on the inner side of the elastic arm.
7. The injection pen drive propulsion assembly according to claim 6, wherein the other end of the resilient arm is fixedly connected to a side wall of the mounting groove (340).
8. The drive propulsion assembly of an injection pen according to claim 6, wherein the mounting slot (340) is a through slot and the mounting slot (340) has a width that is greater than the width of the resilient arm.
9. The drive propulsion assembly of an injection pen according to claim 1, wherein one end of the connecting portion (110) is attached to the limiting portion (310), and the other end of the connecting portion (110) is attached to the abutting portion (320).
10. The drive propulsion assembly of an injection pen according to claim 6, wherein the needle insertion sleeve (300) and the push rod sleeve (100) are all integrally formed injection molded pieces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223425781.8U CN219271807U (en) | 2022-12-19 | 2022-12-19 | Driving propulsion assembly of injection pen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223425781.8U CN219271807U (en) | 2022-12-19 | 2022-12-19 | Driving propulsion assembly of injection pen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219271807U true CN219271807U (en) | 2023-06-30 |
Family
ID=86906378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223425781.8U Active CN219271807U (en) | 2022-12-19 | 2022-12-19 | Driving propulsion assembly of injection pen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219271807U (en) |
-
2022
- 2022-12-19 CN CN202223425781.8U patent/CN219271807U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN219271807U (en) | Driving propulsion assembly of injection pen | |
| CN211884821U (en) | Injection device | |
| CN215646550U (en) | Machine shell, stator and carbon brush holder installation integrated machine | |
| CN214118751U (en) | Shaft sleeve for automobile engine | |
| CN219271803U (en) | Electronic injection pen | |
| CN113230492A (en) | Adjustable dosage liquid medicine feeding device | |
| CN219271802U (en) | Electronic injection pen | |
| CN211155079U (en) | Multifunctional sauce gun | |
| CN209751665U (en) | syringe and locking piece thereof | |
| CN219271816U (en) | Needle-inserting limiting assembly for injection pen and injection pen with needle-inserting limiting assembly | |
| CN219148824U (en) | Needle insertion drive assembly for a drug delivery device | |
| CN212631363U (en) | Injection pen | |
| CN211380974U (en) | Coupling assembly and food processor | |
| CN216518461U (en) | Electric push rod piston pump for driving ink box | |
| CN212615197U (en) | Cassette liquid transfer pump assembly | |
| CN212593367U (en) | Medical electric liquid preparation conveyor | |
| CN212775448U (en) | Gear and output shaft assembly structure and speed reduction motor using same | |
| CN219743557U (en) | injection pen | |
| CN213831011U (en) | Ink box ink filling device | |
| CN219896013U (en) | Chicken head clamping assembly for chick beak breakage | |
| CN219090589U (en) | Locking type low-residue syringe | |
| CN220956681U (en) | Rotating shaft of starter | |
| CN219249449U (en) | Cosmetic brush beneficial to furling brush hair | |
| CN217310702U (en) | Syringe | |
| CN219878347U (en) | Bracket assembly of electric toothbrush and electric toothbrush |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |