CN219721684U - Transmission structure of drug delivery device - Google Patents
Transmission structure of drug delivery device Download PDFInfo
- Publication number
- CN219721684U CN219721684U CN202321166655.7U CN202321166655U CN219721684U CN 219721684 U CN219721684 U CN 219721684U CN 202321166655 U CN202321166655 U CN 202321166655U CN 219721684 U CN219721684 U CN 219721684U
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- China
- Prior art keywords
- groove
- sliding
- sliding block
- delivery device
- push rod
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 24
- 238000012377 drug delivery Methods 0.000 title claims abstract description 13
- 230000033001 locomotion Effects 0.000 claims abstract description 17
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 239000003814 drug Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 210000003491 skin Anatomy 0.000 description 4
- 239000004576 sand Substances 0.000 description 3
- 229940079593 drug Drugs 0.000 description 2
- 241000463219 Epitheca Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000000434 stratum corneum Anatomy 0.000 description 1
- 238000013271 transdermal drug delivery Methods 0.000 description 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to the technical field of drug delivery devices, in particular to a transmission structure of a drug delivery device, which comprises a mounting seat, a sliding block and a push rod, wherein the mounting seat is provided with a sliding groove and a limiting plate, and the limiting plate is provided with a first strip hole; the bottom of the sliding block is positioned in the sliding groove and moves in the sliding groove, the top of the sliding block is provided with a channel, both sides of the channel are provided with inclined holes, the bottom of the push rod is positioned in the channel and is provided with a sliding rod, and both ends of the sliding rod sequentially penetrate through the inclined holes and the strip holes I to be exposed; the mounting seat bottom is provided with the motor, and the motor passes through the eccentric wheel to be connected with the slider, thereby drives the slider through the motor drive eccentric wheel and carries out horizontal reciprocating motion in the spout, and the slide bar is under rectangular hole one's restriction and carry out the reciprocating motion along the inclined hole to drive the push rod and reciprocate. Compared with the prior art, the utility model has the advantages that one transmission and conversion are omitted, the parts are reduced, such as fewer transmission parts, the structure is simplified, and the force loss is reduced.
Description
Technical Field
The utility model relates to the technical field of drug delivery devices, in particular to a transmission structure of a drug delivery device.
Background
Transdermal drug delivery refers to a drug delivery method in which a drug is coated or applied on the surface of the skin, and as the age progresses, a nano-wafer is provided on a drug delivery head to improve the drug permeation capacity. Also, in transdermal administration, the nano-wafer on the administration head needs to reciprocate with the human skin so that the microneedles thereon open the outermost stratum corneum of the skin.
For example, the utility model of patent No. 2019221255687 provides a transmission structure, which can drive the medicine feeding head to reciprocate, but in actual use, the transmission of the motor needs to be changed from rotation to horizontal movement of the sliding block and then to rotation of the transmission member, and finally, the reciprocation of the push rod, that is, the reciprocation of the medicine feeding head, needs three times of transmission and conversion, so that the parts are more and the structure is complex, and the force is lost and becomes smaller after multiple times of transmission, so that the contact to the skin may not be in place or the situation of blocking exists due to insufficient force.
Disclosure of Invention
The utility model aims to provide a transmission structure of a medicine device, and the horizontal movement of a sliding block can be directly converted into the up-and-down movement of a push rod through the arrangement of an inclined hole and a long strip hole, so compared with the prior art, the horizontal movement of the sliding block is not required to be transmitted and converted once, the number of parts is reduced, such as fewer transmission parts, the structure is simplified, the force loss is reduced, and the problems of complex and smaller force of the prior medicine feeding structure are solved.
The purpose of the utility model is realized in the following way:
the transmission structure of the drug delivery device comprises a mounting seat, a sliding block and a push rod, wherein a sliding groove along the horizontal direction is formed in the mounting seat, limiting plates are arranged on two sides of the sliding groove of the mounting seat, and a first strip hole along the vertical direction is formed in the limiting plates;
the bottom of the sliding block is positioned in the sliding groove and moves in the sliding groove, the top of the sliding block is provided with a channel, both sides of the channel are provided with inclined holes, the bottom of the push rod is positioned in the channel and is provided with a sliding rod, and both ends of the sliding rod sequentially penetrate through the inclined holes and the strip holes I to be exposed;
the mounting seat bottom is provided with the motor, and the motor passes through the eccentric wheel to be connected with the slider, thereby drives the slider through the motor drive eccentric wheel and carries out horizontal reciprocating motion in the spout, and the slide bar is under rectangular hole one's restriction and carry out the reciprocating motion along the inclined hole to drive the push rod and reciprocate.
Preferably, an included angle between one side of the inclined hole, which is close to the motor, and the moving track of the sliding block is smaller than 45 degrees, and the horizontal moving distance of the sliding block is larger than the vertical moving distance of the push rod.
Preferably, the sliding block is provided with a strip hole II along the horizontal direction on one side of two ends of the inclined hole, and the strip hole II is communicated with the inclined hole.
Preferably, the mounting seat comprises an upper shell and a bottom shell, the upper shell is provided with the sliding groove, the bottom of the upper shell is provided with limit grooves on two sides of the sliding groove, and the limit grooves are communicated with the sliding groove; the slider bottom both sides are provided with the sand grip, and the sand grip is located between epitheca and drain pan and is located the spacing inslot to the sand grip removes in the spacing inslot.
Preferably, the bottom of the upper shell is provided with a mounting column, and the bottom shell is provided with an assembly groove corresponding to the mounting column.
Preferably, the eccentric wheel top is provided with the boss, and the mounting groove has been seted up at eccentric wheel bottom middle part to the center of boss and the center of mounting groove are not at the same point, motor one end is provided with the drive shaft, and the drive shaft top is located the mounting groove, and the connecting groove has been seted up to slider bottom correspondence boss.
Preferably, the length of the connecting groove is greater than the diameter of the boss, and the connecting lines at the two ends of the length of the connecting groove and the connecting lines at the two ends of the length of the sliding groove are arranged vertically.
Compared with the prior art, the utility model has the following outstanding and beneficial technical effects:
the utility model can realize that the horizontal movement of the sliding block is directly converted into the up-down movement of the push rod through the arrangement of the inclined hole and the strip hole I, so compared with the prior art, the utility model has the advantages that the transmission and conversion are omitted once, the parts are reduced, such as fewer transmission parts, the structure is simplified, the force loss is reduced,
drawings
Fig. 1 is a schematic structural view of the present utility model.
FIG. 2 is a schematic cross-sectional view of the present utility model.
FIG. 3 is a second schematic cross-sectional view of the present utility model.
Fig. 4 is a schematic diagram of the split structure of the present utility model.
Fig. 5 is a schematic view of the structure of the slider and the upper case.
Reference numerals: 1-a mounting base; 11-a chute; 12-limiting plates; 13-strip hole I; 14-an upper shell;
15-bottom shell; 16-limit grooves; 17-mounting posts; 18-an assembly groove; 2-a slider; 21-channel;
22-inclined holes; 23-a strip hole II; 24-convex strips; 25-connecting grooves; 3-pushing rod; 4-a slide bar;
5-a motor; 51-a drive shaft; 6-eccentric wheel; 61-boss; 7-dosing head.
Detailed Description
The following describes the embodiments of the present utility model in further detail with reference to the accompanying drawings.
As shown in fig. 1-5, the transmission structure of the drug delivery device comprises a mounting seat 1, a sliding block 2 and a push rod 3, wherein a sliding groove 11 along the horizontal direction is formed in the mounting seat 1, limiting plates 12 are arranged on two sides of the sliding groove 11 of the mounting seat 1, and a first strip hole 13 along the vertical direction is formed in the limiting plates 12.
Meanwhile, the bottom of the sliding block 2 is positioned in the sliding groove 11 and moves in the sliding groove 11, a channel 21 is formed in the top of the sliding block 2, inclined holes 22 are formed in two sides of the channel 21, the bottom of the push rod 3 is positioned in the channel 21 and provided with a sliding rod 4, and two ends of the sliding rod 4 sequentially penetrate through the inclined holes 22 and the strip holes 13 to be exposed.
And a motor 5 is arranged at the bottom of the mounting seat 1, and the motor 5 is connected with the sliding block 2 through an eccentric wheel 6. Therefore, in the actual use process, the eccentric wheel 6 is driven by the motor 5 so as to drive the sliding block 2 to horizontally reciprocate in the sliding groove 11, and the sliding rod 4 moves up and down under the limitation of the strip hole I13 and along the inclined hole 22 so as to drive the push rod 3 to move up and down.
The top of the push rod 3 is connected with the medicine feeding head 7, so the utility model can realize that the horizontal movement of the slide block 2 is directly converted into the up-down movement of the push rod 3 through the arrangement of the inclined hole 22 and the strip hole 13, compared with the prior art, the utility model has the advantages that one transmission and conversion are omitted, the parts are reduced, such as fewer transmission parts, the structure is simplified, and the force loss is reduced,
meanwhile, in order to make the force larger and proper, the included angle between the side of the inclined hole 22, which is close to the motor 5, and the moving track of the sliding block 2 is set to be smaller than 45 degrees, namely the horizontal moving distance of the sliding block 2 is larger than the up-and-down moving distance of the push rod 3, so that the push rod 3 can obtain more force.
This is because, based on the same power, the present utility model can allow the push rod 3 to obtain more force by setting the horizontal movement distance of the slider 2 to be longer than the vertical movement distance of the push rod 3, i.e., by changing the length, compared with other designs.
As shown in fig. 2 to 5, the slider 2 is provided with a second elongated hole 23 along the horizontal direction on one side of both ends of the inclined hole 22, and the second elongated hole 23 communicates with the inclined hole 22.
Therefore, in the actual use process, if the height is up, the sliding block 2 still moves, and the sliding rod 4 moves in the second long hole 23, namely the height is unchanged, and the time is the administration time at this time, so that the height is not changed and is not quickly lowered at the same time when the administration is ensured.
As shown in fig. 1-5, the mounting seat 1 comprises an upper shell 14 and a bottom shell 15, the upper shell 14 is provided with a chute 11, the bottom of the upper shell 14 is provided with limit grooves 16 at two sides of the chute 11, and the limit grooves 16 are communicated with the chute 11.
Meanwhile, two sides of the bottom of the sliding block 2 are provided with raised strips 24, the raised strips 24 are positioned between the upper shell 14 and the bottom shell 15 and in the limiting groove 16, and the raised strips 24 move in the limiting groove 16.
Therefore, in the actual use process, the bottom of the sliding block 2 moves in the sliding groove 11, the convex strips 24 move in the limiting groove 16, and the sliding block 2 can be limited and the sliding block 2 can be assisted to move by the arrangement of the convex strips 24.
Meanwhile, the upper shell 14 and the bottom shell 15 are connected, firstly, the bottom of the upper shell 14 is provided with a mounting column 17, and the bottom shell 15 is provided with an assembling groove 18 corresponding to the mounting column 17.
Therefore, in the actual use process, the mounting posts 17 are positioned in the assembly grooves 18 so as to connect the upper shell 14 and the bottom shell 15, and in order to fasten connection and connection with the motor 5, screws can sequentially pass through the upper shell 14 and the bottom shell 15 and penetrate into the motor 5, so that connection of the three is realized, and connection between the upper shell 14 and the bottom shell 15 is more stable.
As shown in fig. 2 to 5, the eccentric 6 has the following structure: first, the top of the eccentric wheel 6 is provided with a boss 61, the middle of the bottom of the eccentric wheel 6 is provided with a mounting groove, the center of the boss 61 and the center of the mounting groove are not at the same point, one end of the motor 5 is provided with a driving shaft 51, the top of the driving shaft 51 is positioned in the mounting groove, and the bottom of the sliding block 2 is provided with a connecting groove 25 corresponding to the boss 61.
Therefore, in the actual use process, the center of the boss 61 and the center of the mounting groove are not at the same point, so that eccentric arrangement is realized, the top of the driving shaft 51 is positioned in the mounting groove, the boss 61 is positioned in the connecting groove 25, and therefore, the connection position between the sliding block 2 and the eccentric wheel 6 is eccentric arrangement to the connection position between the motor 5 and the eccentric wheel 6, and the eccentric rotation is changed into horizontal reciprocating movement under the limitation of the sliding groove 11.
And the length of the connecting groove 25 is larger than the diameter of the boss 61, and the connecting lines at the two ends of the length of the connecting groove 25 and the connecting lines at the two ends of the length of the chute 11 are arranged vertically, so that the eccentric wheel 6 can rotate conveniently.
The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. While the utility model is not limited to the above-described embodiments, there are various changes and modifications which fall within the scope of the utility model as hereinafter claimed, without departing from the spirit and scope of the utility model.
Claims (7)
1. The transmission structure of the drug delivery device is characterized by comprising a mounting seat (1), a sliding block (2) and a push rod (3), wherein a sliding groove (11) along the horizontal direction is formed in the mounting seat (1), limiting plates (12) are arranged on two sides of the sliding groove (11) of the mounting seat (1), and a first long hole (13) along the vertical direction is formed in the limiting plates (12);
the bottom of the sliding block (2) is positioned in the sliding groove (11) and moves in the sliding groove (11), a channel (21) is formed in the top of the sliding block (2), inclined holes (22) are formed in two sides of the channel (21), the bottom of the push rod (3) is positioned in the channel (21) and is provided with a sliding rod (4), and two ends of the sliding rod (4) sequentially penetrate through the inclined holes (22) and the strip holes I (13) to be exposed;
the mounting seat (1) bottom is provided with motor (5), and motor (5) are connected with slider (2) through eccentric wheel (6), thereby drive slider (2) through motor (5) drive eccentric wheel (6) and carry out horizontal reciprocating motion in spout (11), and slide bar (4) are under rectangular hole one (13) restriction and carry out the reciprocating motion along inclined hole (22) to drive push rod (3) reciprocates.
2. The delivery device transmission structure of claim 1, wherein: the included angle between one side of the inclined hole (22) close to the motor (5) and the moving track of the sliding block (2) is smaller than 45 degrees, and the horizontal moving distance of the sliding block (2) is larger than the vertical moving distance of the push rod (3).
3. The delivery device transmission structure of claim 1, wherein: the sliding block (2) is provided with a strip hole II (23) along the horizontal direction on one side of two ends of the inclined hole (22), and the strip hole II (23) is communicated with the inclined hole (22).
4. A drive structure of a drug delivery device according to any one of claims 1-3, wherein: the mounting seat (1) comprises an upper shell (14) and a bottom shell (15), the upper shell (14) is provided with the sliding groove (11), the bottom of the upper shell (14) is provided with limit grooves (16) on two sides of the sliding groove (11), and the limit grooves (16) are communicated with the sliding groove (11); the two sides of the bottom of the sliding block (2) are provided with raised strips (24), the raised strips (24) are positioned between the upper shell (14) and the bottom shell (15) and in the limiting groove (16), and the raised strips (24) move in the limiting groove (16).
5. The delivery device transmission structure of claim 4, wherein: the bottom of the upper shell (14) is provided with a mounting column (17), and the bottom shell (15) is provided with an assembling groove (18) corresponding to the mounting column (17).
6. A drive structure of a drug delivery device according to any one of claims 1-3, wherein: the eccentric wheel (6) top is provided with boss (61), and the mounting groove has been seted up at eccentric wheel (6) bottom middle part to the center of boss (61) is not at same point with the center of mounting groove, motor (5) one end is provided with drive shaft (51), and drive shaft (51) top is located the mounting groove, and connecting groove (25) have been seted up corresponding boss (61) in slider (2) bottom.
7. The delivery device transmission structure of claim 6, wherein: the length of the connecting groove (25) is larger than the diameter of the boss (61), and the connecting lines at the two ends of the length of the connecting groove (25) and the connecting lines at the two ends of the length of the sliding groove (11) are arranged vertically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321166655.7U CN219721684U (en) | 2023-05-12 | 2023-05-12 | Transmission structure of drug delivery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321166655.7U CN219721684U (en) | 2023-05-12 | 2023-05-12 | Transmission structure of drug delivery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219721684U true CN219721684U (en) | 2023-09-22 |
Family
ID=88057945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321166655.7U Active CN219721684U (en) | 2023-05-12 | 2023-05-12 | Transmission structure of drug delivery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219721684U (en) |
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2023
- 2023-05-12 CN CN202321166655.7U patent/CN219721684U/en active Active
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| GR01 | Patent grant |