Tail independent counting device and method

Abstract

The application relates to the technical field of respiratory administration auxiliary equipment, in particular to a tail independent counting device and a method thereof. The device comprises a lower cover, one end of the lower cover is fixedly connected with a transparent observation plate, one end of the lower cover is provided with an upper cover, a fixing mechanism for fixation is arranged between the lower cover and the upper cover, a limiting mechanism for guidance is arranged between the lower cover and the upper cover, the inner wall of one end of the lower cover is fixedly connected with first side plates in a symmetrical mode, a driving mechanism is arranged between the first side plates, one side of the lower cover is fixedly connected with second side plates in a symmetrical mode, and a counting mechanism for counting is arranged between the second side plates. The device adopts a modular design and an independent counting module, can meet various demands of users, can realize counting modes of positive addition and countdown reduction, can clearly and intuitively judge the number of times of user administration and the residual number of times of liquid medicine, and provides great convenience for the record of user administration.

Description

Technical Field

[0001] This invention relates to the field of respiratory drug delivery assistance devices, specifically to an independent tail counting device and method thereof. Background Technology

[0002] Nebulized respiratory drug delivery is a core treatment method for respiratory diseases. It uses a drug delivery device to atomize liquid respiratory drugs into tiny particles, which are then inhaled through the mouth and nose and act directly on the airways and lung lesions. It has the advantages of rapid onset of action, high local drug concentration and few systemic side effects, and is widely used in clinical treatment and home care.

[0003] Some existing drug delivery devices lack a counting function, especially large-dose liquid bottles. This makes it impossible for users to clearly and intuitively determine the number of doses or the remaining doses, causing great inconvenience to users. Summary of the Invention

[0004] The purpose of this invention is to provide an independent counting device and method at the tail end, to solve the problem mentioned in the background art that some existing drug delivery devices lack counting functions, especially large-dose liquid bottles, making it impossible for users to clearly and intuitively determine the number of doses or the remaining doses, causing great inconvenience to users. This device adopts a modular design and an independent counting module, and through a three-digit counting method, it can meet various user needs. Whether it is large-dose or small-dose drug delivery, this device is applicable, improving the applicability of the device. At the same time, the number recording method can be customized on the surface of the first, second, and third counting discs according to needs. It can not only realize positive increment and reverse decrement counting methods, but also clearly and intuitively determine the number of doses and the remaining doses, providing great convenience for users to record drug delivery.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an independent tail counting device and method, the device comprising a lower cover, a transparent observation plate fixedly connected to one end of the lower cover, an upper cover disposed at one end of the lower cover, a fixing mechanism for fixing between the lower cover and the upper cover, a pressure cover slidably connected to the middle of the upper cover, a guiding limiting mechanism disposed between the pressure cover and the lower cover, first side plates symmetrically fixedly connected to the inner wall of one end of the lower cover, a driving mechanism disposed between the first side plates, second side plates symmetrically fixedly connected to one side of the lower cover, the second side plates being located at both ends of the transparent observation plate, and a counting mechanism for counting disposed between the second side plates.

[0006] Preferably, the transparent observation plate is made of transparent material, which makes it easy for users to observe the number of uses. One end of the lower cover is grooved, which facilitates the connection between this device and the drug delivery device. One end of the pressure cap is evenly provided with anti-slip protrusions, which makes it easy for users to press and prevent slippage.

[0007] Preferably, the fixing mechanism includes mounting holes, and four sets of mounting holes are fixedly connected to the edge of the lower cover. A mounting rod that is fixedly connected to the upper cover is slidably connected inside the mounting holes, and one end of the mounting rod is frustum-shaped. The connection between the mounting hole and the mounting rod is a boss, and one end of the mounting hole is wide-mouthed to facilitate the user to connect the lower cover and the upper cover.

[0008] Preferably, the limiting mechanism includes a sliding sleeve, and the middle of the pressure cover is fixedly connected to the sliding sleeve located inside the lower cover. The sliding sleeve is slidably connected to the sliding rod fixedly connected to the lower cover. The middle of the pressure cover is provided with a spring that fits against the inner wall of the lower cover. One side of the sliding rod is slidably connected to a slider fixedly connected to the inner wall of the sliding sleeve. The sliding sleeve is located inside the spring, which facilitates the pressure cover to stably drive the drive mechanism.

[0009] Preferably, the driving mechanism includes a toothed plate, a first gear is disposed between the first side plates, a connecting turntable is fixedly connected to one side of the first gear, a first fixing rod is fixedly connected to the center line of the first gear and the connecting turntable, and both ends of the first fixing rod are rotatably connected to the first side plates. One end of the pressure cover is fixedly connected to a toothed plate that meshes with the first gear. A U-shaped clamp is disposed between the first side plates, and the opening of the U-shaped clamp is fixedly connected to the connecting turntable, providing a power source for the counting mechanism of this device and facilitating counting operations.

[0010] Preferably, the counting mechanism includes a U-shaped shaft, with a U-shaped shaft fixedly connected between the second side plates, and the U-shaped shaft is in an inclined state. One end of the U-shaped shaft is rotatably connected to a first counting disc, and one end of the first counting disc is provided with a transmission mechanism. A second actuating wheel is fixedly connected to one side of the first counting disc, and a second counting disc rotatably connected to the U-shaped shaft is provided on one side of the first counting disc. A second gear rotatably connected to the U-shaped shaft is fixedly connected to the side of the second counting disc near the first counting disc, and a first actuating wheel rotatably connected to the U-shaped shaft is fixedly connected to the other side of the second counting disc. A third counting disc rotatably connected to the U-shaped shaft is provided on one side of the second counting disc, and the third counting disc is located near... A third gear, which is rotatably connected to a U-shaped shaft, is fixedly connected to one side of the second counting disc. A rotating groove is provided on the other side of the third counting disc. Limiting plates are symmetrically fixedly connected to the inner wall of the bottom end of the lower cover, and the limiting plates are respectively on one side of the first counting disc and the third counting disc. One end of the U-shaped shaft is rotatably connected to symmetrical actuating rods, and the middle part of the actuating rods is located inside the limiting plates. One end of the actuating rods is respectively in contact with the limiting plates. Actuating plates are uniformly fixedly connected to the surface of the actuating rods, and the actuating plates are stepped. The second actuating wheel and the second gear mesh with the actuating plates on the surface of a set of actuating rods. The first actuating wheel and the third gear mesh with the actuating plates on the surface of another set of actuating rods, which facilitates counting by this device.

[0011] Preferably, the transmission mechanism includes a ratchet. A ratchet that is rotatably connected to a U-shaped shaft is fixedly connected to one side of the first counting disc. A moving tooth that meshes with the ratchet is provided on one side of the first counting disc. The moving tooth is arc-shaped and one end of the moving tooth is a bevel. The edge of the ratchet has alternating bevels and vertical surfaces. The bevel of the moving tooth is in contact with the bevel of the limiting plate. A movable column is fixedly connected to one end of the moving tooth, and the movable column is located inside the U-shaped clamp closure. An anti-reverse rod is fixedly connected to one end of the lower cover, and the top of the anti-reverse rod is in contact with the vertical surface of the ratchet. A limit buckle is fixedly connected to one end of the moving tooth, and the limit buckle is rotatably connected to one end of the ratchet, which facilitates the transmission of power from the drive mechanism to the counting mechanism.

[0012] Preferably, the actuating teeth and anti-reverse lever are elastic, capable of deformation and reset, facilitating the operation of the device. The actuating teeth, movable column, and anti-reverse lever are integrated into one piece. The first counting disc, ratchet, and second actuating wheel are integrated into one piece. The second counting disc, second gear, and first actuating wheel are integrated into one piece. The third counting disc and third gear are integrated into one piece. This integrated design improves connection strength. The surfaces of the first, second, and third counting discs are all provided with numbers, which can be customized according to user needs, enabling counting methods of positive increment and reverse decrement, facilitating counting work for the user.

[0013] How to use this device:

[0014] Step 1: Press down. Press the cover once. The moving cover moves the toothed plate, which in turn drives the first gear to rotate. The first gear then drives the connecting turntable to rotate.

[0015] Step 2: Transmission. The first gear and the connecting turntable drive one end of the U-shaped clamp to rotate. At this time, the other end of the U-shaped clamp makes a circular motion. One end of the U-shaped clamp drives the movable column to move. The U-shaped clamp makes the movable column and the actuating tooth make a circular motion. The inclined surface of one end of the actuating tooth abuts against the inclined surface of the ratchet until a click is heard. At this time, one end of the actuating tooth is engaged with the edge of the ratchet.

[0016] Step 3: Drive. After the user releases the pressure cap, the pressure cap, toothed plate, first gear, connecting turntable, U-shaped clamp and movable column are reset under the action of the spring. The movable column drives the actuating tooth to reverse and reset, and pulls the ratchet to rotate through one end of the actuating tooth.

[0017] Step 4: Counting. The ratchet drives the first counting plate and the second actuating wheel to rotate, thereby controlling the rotation of the numbers on the surface of the first counting plate. When the first counting plate and the second actuating wheel rotate ten times, the second actuating wheel, the actuating lever, and the actuating plate drive the second gear, the second counting plate, and the first actuating wheel to rotate once. At this time, the numbers on the surface of the second counting plate rotate. When the second counting plate rotates ten times, the second counting plate drives the third gear and the third counting plate to rotate via the actuating lever and the actuating plate. At this time, the numbers on the surface of the third counting plate rotate. Through the slider, the numbers on the surfaces of the second and third counting plates, the number of times the user administers the medication or the remaining doses of the medication are recorded.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] In use, the user connects this device to the drug delivery device. To administer a single dose, the user presses the cap, causing the toothed plate to rotate the first gear. The rotation is limited by the sliding sleeve and sliding rod. The movable column moves via the connecting turntable and U-shaped clamp. Since the anti-reverse lever is rotatably connected to the ratchet, the movable column causes the actuating tooth to rotate. At this point, one end of the actuating tooth contacts and deforms against the ratchet until it engages the edge of the ratchet. Simultaneously, the anti-reverse lever prevents the ratchet from rotating due to the actuating tooth. The user then releases the cap. Then, the pressure cap and toothed plate are reset under the action of the spring. The movable column is reset through the first gear, the connecting turntable, and the U-shaped clamp. At this time, the movable column drives the actuating tooth to reverse and reset. The actuating tooth drives the ratchet and the first counting plate to rotate, thereby controlling the rotation of the numbers on the surface of the first counting plate. The first counting plate simultaneously drives the second actuating wheel to rotate. When the first counting plate and the second actuating wheel rotate one revolution, the second actuating wheel drives a set of actuating rods and actuating plates to rotate. The actuating plates drive the second gear and the second counting plate to rotate. In one cycle, the numbers on the surface of the second counting disc rotate, causing the first actuating wheel to rotate. When the second counting disc completes one revolution, it drives another set of actuating levers and actuating plates to rotate via the first actuating wheel. These actuating plates then drive the third gear and the third counting disc to rotate, causing the numbers on the surface of the third counting disc to rotate. This rotation of the numbers on the surfaces of the slider, the second counting disc, and the third counting disc records the number of times the user administers the medication or the remaining doses, greatly facilitating medication administration. This device employs a modular design and independent counting modules, using a three-digit counting method to meet various user needs. It is suitable for both large and small dose administration, improving its applicability. Furthermore, the recording method of the numbers on the surfaces of the first, second, and third counting discs can be customized according to requirements. It can not only achieve positive increment and reverse decrement counting but also clearly and intuitively determine the number of times the user administers the medication and the remaining doses, providing great convenience for medication administration recording. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of the present invention; Figure 2 This is a cross-sectional perspective view of the present invention; Figure 3 This is a three-dimensional cross-sectional view of the fixing mechanism in this invention; Figure 4 This is a three-dimensional schematic diagram of the driving mechanism in this invention; Figure 5 This is a three-dimensional cross-sectional view of the limiting mechanism in this invention; Figure 6 This is a three-dimensional schematic diagram of the counting mechanism in this invention; Figure 7 This is a three-dimensional schematic diagram of the ratchet, actuating teeth, and actuating plate in this invention; Figure 8 This is an exploded three-dimensional schematic diagram of the counting mechanism in this invention; Figure 9 This is a three-dimensional cross-sectional view of the counting mechanism in this invention; Figure 10 This is an exploded three-dimensional schematic diagram of the present invention.

[0021] In the diagram: 1. Lower cover; 2. Transparent observation plate; 3. Upper cover; 4. Pressure cover; 5. Sliding sleeve; 6. Spring; 7. Mounting hole; 8. Mounting rod; 9. Sliding rod; 10. Sliding block; 11. Toothed plate; 12. First side plate; 13. First gear; 14. Connecting turntable; 15. First fixing rod; 16. U-shaped clamp; 17. Second side plate; 18. U-shaped shaft; 19. First counting disc; 20. Ratchet; 21. Actuating tooth; 22. Movable column; 23. Anti-reverse rod; 24. Second counting disc; 25. Second gear; 26. First actuating wheel; 27. Third counting disc; 28. Third gear; 29. ​​Rotating groove; 30. Limiting plate; 31. Actuating rod; 32. Actuating plate; 33. Limiting buckle; 34. Second actuating wheel. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see Figures 1-10 One embodiment provided by the present invention:

[0024] A tail-end independent counting device and method thereof, the device includes a lower cover 1, a transparent observation plate 2 fixedly connected to one end of the lower cover 1, an upper cover 3 provided at one end of the lower cover 1, a fixing mechanism for fixing between the lower cover 1 and the upper cover 3, a pressure cover 4 slidably connected to the middle of the upper cover 3, a limiting mechanism for guiding between the pressure cover 4 and the lower cover 1, a first side plate 12 symmetrically fixedly connected to the inner wall of one end of the lower cover 1, a driving mechanism provided between the first side plates 12, a second side plate 17 symmetrically fixedly connected to one side of the lower cover 1, and the second side plates 17 are located at both ends of the transparent observation plate 2, a counting mechanism for counting is provided between the second side plates 17;

[0025] Please see Figures 1-6In this embodiment, the fixing mechanism includes mounting holes 7. Four sets of mounting holes 7 are fixedly connected to the edge of the lower cover 1. A mounting rod 8, which is fixedly connected to the upper cover 3, is slidably connected inside the mounting holes 7. One end of the mounting rod 8 is frustoconical, and the connection between the mounting hole 7 and the mounting rod 8 is a boss. One end of the mounting hole 7 is wide-mouthed to facilitate the user connecting the lower cover 1 and the upper cover 3. The limiting mechanism includes a sliding sleeve 5. A sliding sleeve 5 located inside the lower cover 1 is fixedly connected to the middle of the pressure cover 4. A sliding rod 9, which is fixedly connected to the lower cover 1, is slidably connected inside the sliding sleeve 5. A spring 6 is provided in the middle of the cover 4, which fits against the inner wall of the lower cover 1. A slider 10 is slidably connected to one side of the slide rod 9 and fixedly connected to the inner wall of the slide sleeve 5. The slide sleeve 5 is located inside the spring 6, which facilitates the stable driving of the cover 4 to the drive mechanism. The drive mechanism includes a toothed plate 11 and a first gear 13 is provided between the first side plates 12. A connecting turntable 14 is fixedly connected to one side of the first gear 13. A first fixing rod 15 is fixedly connected to the center line of the first gear 13 and the connecting turntable 14, and the two ends of the first fixing rod 15 rotate with the first side plate 12. The connection is as follows: one end of the pressure cover 4 is fixedly connected to a toothed plate 11 that meshes with the first gear 13; a U-shaped clamp 16 is provided between the first side plates 12, and the opening of the U-shaped clamp 16 is fixedly connected to the connecting turntable 14; when the user presses the pressure cover 4, the pressure cover 4 drives the toothed plate 11 to move; the moving toothed plate 11 drives the first gear 13 to rotate; the first gear 13 drives the connecting turntable 14 to rotate; at the same time, the slide rod 9 slides inside the slide sleeve 5, and the slider 10 slides inside the slide rod 9. Through the slide sleeve 5, slide rod 9, and slider 10, the connection can be adjusted. The movement of the pressure cover 4 is limited. The moving pressure cover 4 can compress the spring 6. The rotating first gear 13 and the connecting turntable 14 drive one end of the U-shaped clamp 16 to rotate. At this time, the end of the U-shaped clamp 16 connected to the movable column 22 performs a circular motion. After the user releases the pressure cover 4, the pressure cover 4 and the toothed plate 11 are reset under the action of the pressure cover 4's own rebound force. At this time, the movable column 22 can be reset through the first gear 13, the connecting turntable 14, and the U-shaped clamp 16, providing a power source for the counting mechanism of this device and facilitating the counting work.

[0026] Please see Figure 2 and Figures 5-9In this embodiment, the counting mechanism includes a U-shaped shaft 18. A U-shaped shaft 18 is fixedly connected between the second side plates 17, and the U-shaped shaft 18 is in an inclined state. One end of the U-shaped shaft 18 is rotatably connected to a first counting disc 19. A transmission mechanism is provided at one end of the first counting disc 19. A second actuating wheel 34 is fixedly connected to one side of the first counting disc 19. A second counting disc 24, rotatably connected to the U-shaped shaft 18, is provided on one side of the first counting disc 19. A second gear 25, rotatably connected to the U-shaped shaft 18, is fixedly connected to the side of the second counting disc 24 closest to the first counting disc 19. A first actuating wheel 26, rotatably connected to the U-shaped shaft 18, is fixedly connected to the other side of the second counting disc 24. A transmission mechanism is provided on one side of the second counting disc 24. A third counting disc 27 is rotatably connected to shaft 18. A third gear 28, rotatably connected to shaft 18, is fixedly connected to the side of the third counting disc 27 closest to the second counting disc 24. A rotating groove 29 is provided on the other side of the third counting disc 27. Limiting plates 30 are symmetrically fixedly connected to the inner wall of the bottom end of the lower cover 1, with the limiting plates 30 being on the sides of the first counting disc 19 and the third counting disc 27 respectively. One end of the U-shaped shaft 18 is rotatably connected to symmetrical actuating rods 31, with the middle portions of the actuating rods 31 located inside the limiting plates 30. One end of the actuating rods 31 is in contact with the limiting plates 30. Actuating plates 32, which are stepped, are uniformly fixedly connected to the surface of the actuating rods 31. A second actuating wheel 34 and a second gear 25 are connected to a set of... The actuating plate 32 on the surface of the actuating lever 31 meshes with the first actuating wheel 26 and the third gear 28 mesh with the actuating plate 32 on the surface of another set of actuating levers 31, which facilitates counting in this device. The transmission mechanism includes a ratchet 20. A ratchet 20 that is rotatably connected to the U-shaped shaft 18 is fixedly connected to one side of the first counting circular plate 19. An actuating tooth 21 that meshes with the ratchet 20 is provided on one side of the first counting circular plate 19. The actuating tooth 21 is arc-shaped and one end of the actuating tooth 21 is inclined. The edge of the ratchet 20 has alternating inclined and vertical surfaces. The inclined surface of the actuating tooth 21 fits against the inclined surface of the limiting plate 30. A movable column 22 is fixedly connected to one end of the actuating tooth 21, and the movable column 22 is located inside the closed part of the U-shaped clamp 16. One end of the lower cover 1 is fixedly connected to An anti-reverse lever 23 is provided, with its top end abutting against the vertical surface of the ratchet 20. One end of the actuating tooth 21 is fixedly connected to a limit buckle 33, which is rotatably connected to one end of the ratchet 20. One end of the U-shaped clamp 16 drives the movable column 22 to move. Simultaneously, because the anti-reverse lever 23 is rotatably connected to the ratchet 20, the U-shaped clamp 16 enables the movable column 22 and the actuating tooth 21 to perform circular motion. The inclined surface of one end of the actuating tooth 21 contacts the inclined surface of the ratchet 20 and deforms until a click is heard. At this point, one end of the actuating tooth 21 is engaged at the edge of the ratchet 20. Since the top end of the anti-reverse lever 23 contacts the ratchet 20, the anti-reverse lever 23 prevents the ratchet 20 from rotating due to the rotation of the actuating tooth 21.After the user releases the pressure cap 4, the pressure cap 4, toothed plate 11, first gear 13, connecting turntable 14, U-shaped clamp 16, and movable column 22 are reset by the rebound force of the pressure cap 4 itself. The movable column 22 drives the actuating tooth 21 to reverse and reset. One end of the actuating tooth 21 pulls the ratchet 20 to rotate, and the ratchet 20 drives the first counting disc 19 to rotate, thereby controlling the rotation of the numbers on the surface of the first counting disc 19, which facilitates the user to record the number of doses. The first counting disc 19 simultaneously drives the second actuating wheel 34 to rotate. When the first counting disc 19 and the second actuating wheel 34 rotate one revolution, that is, the first counting disc 19 rotates ten times, the second actuating wheel 34 can drive a set of actuating rods 31 and actuating plate 32 at its bottom end to rotate. The actuating plate 32 can drive the second gear 25 and the first gear 26 to rotate. The second counting disc 24 rotates once, causing the numbers on its surface to rotate. This rotation drives the first actuating wheel 26 to rotate. When the second counting disc 24 completes one revolution (ten rotations), it drives the third gear 28 via a set of actuating rods 31 and actuating plates 32 at the bottom of the first actuating wheel 26. The third gear 28 then drives the third counting disc 27 to rotate, causing the numbers on its surface to rotate. This rotation, along with the rotation of the numbers on the slider 10, the second counting disc 24, and the third counting disc 27, records the number of times the user has administered medication or the remaining dose, greatly facilitating medication administration and ensuring efficient power transmission from the drive mechanism to the counting mechanism.

[0027] It should be noted that the transparent observation plate 2 is made of transparent material, making it easy for users to observe the number of uses. One end of the lower cover 1 is grooved, which facilitates the connection between this device and the drug delivery device. One end of the pressure cap 4 is evenly provided with anti-slip protrusions, which makes it easy for users to press and prevent slippage. The actuating teeth 21 and the anti-reverse lever 23 are elastic, can deform, and can also be reset, which facilitates the operation of this device. The actuating teeth 21, the movable column 22, and the anti-reverse lever 23 are integrated into one piece. The first counting disc 19, the ratchet 20, and the second actuating wheel 34 are integrated into one piece. The second counting disc 24, the second gear 25, and the first actuating wheel 26 are integrated into one piece. The third counting disc 27 and the third gear 28 are integrated into one piece. The integrated design can improve the connection strength. The surfaces of the first counting disc 19, the second counting disc 24, and the third counting disc 27 are all provided with numbers. The numbers can be customized according to the user's needs and can realize positive increment and reverse decrement counting methods, which is convenient for users to count.

[0028] How to use this device:

[0029] Step 1: Press down. Press down the cover 4 once. The moving cover 4 drives the toothed plate 11 to move. The moving toothed plate 11 drives the first gear 13 to rotate. The first gear 13 drives the connecting turntable 14 to rotate.

[0030] Step 2: Transmission. The first gear 13 and the connecting turntable 14 drive one end of the U-shaped clamp 16 to rotate. At this time, the other end of the U-shaped clamp 16 performs a circular motion. One end of the U-shaped clamp 16 drives the movable column 22 to move. Through the U-shaped clamp 16, the movable column 22 and the actuating tooth 21 perform a circular motion. The inclined surface of one end of the actuating tooth 21 abuts against the inclined surface of the ratchet 20 until a click is heard. At this time, one end of the actuating tooth 21 is engaged at the edge of the ratchet 20.

[0031] Step 3: Drive. After the user releases the pressure cover 4, the pressure cover 4, toothed plate 11, first gear 13, connecting turntable 14, U-shaped clamp 16 and movable column 22 are reset under the action of spring 6. Movable column 22 drives the actuating tooth 21 to reverse and reset. The ratchet 20 is rotated by pulling one end of the actuating tooth 21.

[0032] Step 4: Counting. The ratchet 20 drives the first counting disc 19 and the second actuating wheel 34 to rotate, thereby controlling the rotation of the numbers on the surface of the first counting disc 19. When the first counting disc 19 and the second actuating wheel 34 rotate ten times, the second gear 25, the second counting disc 24, and the first actuating wheel 26 are driven to rotate once through the second actuating wheel 34, the actuating lever 31, and the actuating plate 32. At this time, the numbers on the surface of the second counting disc 24 rotate. When the second counting disc 24 rotates ten times, the second counting disc 24 drives the third gear 28 and the third counting disc 27 to rotate through the actuating lever 31 and the actuating plate 32. At this time, the numbers on the surface of the third counting disc 27 rotate. Through the slider 10, the numbers on the surfaces of the second counting disc 24 and the third counting disc 27, the number of times the user administers the medication or the remaining number of doses of the medication are recorded.

[0033] Working Principle: During use, the user connects this device to the drug delivery device. When administering the drug, the user simultaneously presses the pressure cap 4. The moving pressure cap 4 moves the toothed plate 11, which in turn rotates the first gear 13. The first gear 13 then rotates the connecting turntable 14. Simultaneously, the slide rod 9 slides inside the sliding sleeve 5, and the slider 10 slides inside the slide rod 9. The sliding sleeve 5, slide rod 9, and slider 10 limit the movement of the pressure cap 4. The moving pressure cap 4 compresses the spring 6. The rotating first gear 13 and connecting turntable 14 rotate one end of the U-shaped clamp 16. At this time, the end of the U-shaped clamp 16 connected to the movable column 22 performs a circular motion, causing the movable column 22 to move. Simultaneously, since the anti-reverse lever 23 is rotatably connected to the ratchet 20, the U-shaped clamp 16 enables the movable column 22 and the actuating tooth 21 to perform circular motion. The inclined surface of one end of the actuating tooth 21 abuts against the inclined surface of the ratchet 20 and deforms until a click is heard. At this time, one end of the actuating tooth 21 is engaged with the edge of the ratchet 20. At the same time, since the top of the anti-reverse lever 23 abuts against the ratchet 20, the anti-reverse lever 23 can prevent the ratchet 20 from rotating due to the rotation of the actuating tooth 21. After the user releases the pressure cover 4, the pressure cover 4 and the toothed plate 11 are reset under the action of the spring 6's own rebound force. At this time, the movable column 22 can be reset through the first gear 13, the connecting turntable 14, and the U-shaped clamp 16. The movable column 22 drives the actuating tooth 21 to reverse. The ratchet 20 is rotated by one end of the actuating tooth 21, which in turn drives the first counting disc 19 to rotate, thereby controlling the rotation of the numbers on the surface of the first counting disc 19. This facilitates the user's recording of the number of doses. Simultaneously, the first counting disc 19 drives the second actuating wheel 34 to rotate. When the first counting disc 19 and the second actuating wheel 34 rotate one revolution (i.e., the first counting disc 19 rotates ten times), the second actuating wheel 34 drives a set of actuating rods 31 and actuating plates 32 at its bottom to rotate. The actuating plates 32 then drive the second gear 25 and the second counting disc 24 to rotate once. At this time, the numbers on the surface of the second counting disc 24 rotate. The rotating second counting disc 24 drives the first actuating wheel 26 to rotate. When the second counting disc 24 rotates, the numbers on the surface of the second counting disc 24 rotate. When the second counting plate 24 rotates one revolution, that is, when the second counting plate 24 rotates ten times, the second counting plate 24 drives the third gear 28 to rotate via a set of actuating rods 31 and actuating plates 32 at the bottom of the first actuating wheel 26. The third gear 28 then drives the third counting plate 27 to rotate, causing the numbers on the surface of the third counting plate 27 to rotate. This rotation of the numbers on the surfaces of the slider 10, the second counting plate 24, and the third counting plate 27 records the number of times the user administers the medication or the remaining doses, thus providing great convenience for the user. This device adopts a modular design and an independent counting module. Through a three-digit counting method, it can meet various user needs, whether for large or small dose administration.This device improves its applicability and allows for customized digit recording methods on the surfaces of the first counting disc 19, the second counting disc 24, and the third counting disc 27. It not only enables both positive increment and reverse decrement counting but also clearly and intuitively determines the number of times the user has administered medication and the remaining dosage, greatly simplifying medication recording for the user.

[0034] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A tail independent counting device, characterized by, Includes a lower cover (1), one end of which is fixedly connected to a transparent observation plate (2), one end of which is provided with an upper cover (3), a fixing mechanism for fixing is provided between the lower cover (1) and the upper cover (3), a pressure cover (4) is slidably connected to the middle of the upper cover (3), a limiting mechanism for guiding is provided between the pressure cover (4) and the lower cover (1), a first side plate (12) is symmetrically fixedly connected to the inner wall of one end of the lower cover (1), a driving mechanism is provided between the first side plates (12), a second side plate (17) is symmetrically fixedly connected to one side of the lower cover (1), and the second side plate (17) is located at both ends of the transparent observation plate (2), a counting mechanism for counting is provided between the second side plates (17).

2. The tail independent counting device of claim 1, wherein: The transparent observation plate (2) is made of transparent material, one end of the lower cover (1) is grooved, and one end of the pressure cover (4) is uniformly provided with anti-slip protrusions.

3. The tail independent counting device of claim 1, wherein: The fixing mechanism includes mounting holes (7). Four sets of mounting holes (7) are fixedly connected to the edge of the lower cover (1). The mounting holes (7) are slidably connected to the mounting rod (8) which is fixedly connected to the upper cover (3). One end of the mounting rod (8) is frustum-shaped. The connection between the mounting hole (7) and the mounting rod (8) is a boss. One end of the mounting hole (7) is wide-mouth-shaped.

4. The tail independent counting device of claim 1, wherein: The limiting mechanism includes a sliding sleeve (5). The middle part of the pressure cover (4) is fixedly connected to the sliding sleeve (5) located inside the lower cover (1). The sliding sleeve (5) is slidably connected to the sliding rod (9) fixedly connected to the lower cover (1). The middle part of the pressure cover (4) is provided with a spring (6) that fits against the inner wall of the lower cover (1). The side of the sliding rod (9) is slidably connected to a slider (10) fixedly connected to the inner wall of the sliding sleeve (5). The sliding sleeve (5) is located inside the spring (6).

5. The tail independent counting device of claim 1, wherein: The driving mechanism includes a toothed plate (11), a first gear (13) is provided between the first side plates (12), a connecting turntable (14) is fixedly connected to one side of the first gear (13), a first fixing rod (15) is fixedly connected to the center line of the first gear (13) and the connecting turntable (14), and both ends of the first fixing rod (15) are rotatably connected to the first side plate (12). One end of the pressure cover (4) is fixedly connected to the toothed plate (11) that meshes with the first gear (13), and a U-shaped U-clamp (16) is provided between the first side plates (12), and the opening of the U-clamp (16) is fixedly connected to the connecting turntable (14).

6. The tail independent counting device of claim 5, wherein: The counting mechanism includes a U-shaped shaft (18), and a U-shaped shaft (18) is fixedly connected between the second side plates (17). The U-shaped shaft (18) is in an inclined state. One end of the U-shaped shaft (18) is rotatably connected to a first counting disc (19). A transmission mechanism is provided at one end of the first counting disc (19). A second actuating wheel (34) is fixedly connected to one side of the first counting disc (19). A second counting disc (24) is rotatably connected to the U-shaped shaft (18) on one side of the first counting disc (19). A second gear (25) is fixedly connected to the U-shaped shaft (18) on the side of the second counting disc (24) close to the first counting disc (19). A first actuating wheel (26) is fixedly connected to the U-shaped shaft (18) on the other side of the second counting disc (24). A third counting disc (27) is rotatably connected to the U-shaped shaft (18) on one side of the second counting disc (24). The third counting disc (27) is close to the second counting disc. A third gear (28) is fixedly connected to one side of the plate (24) and rotatably connected to the U-shaped shaft (18). A rotating groove (29) is provided on the other side of the third counting circular plate (27). Limiting plates (30) are symmetrically fixedly connected to the inner wall of the bottom end of the lower cover (1), and the limiting plates (30) are respectively on one side of the first counting circular plate (19) and the third counting circular plate (27). One end of the U-shaped shaft (18) is rotatably connected to a symmetrical actuating rod (31), and the middle part of the actuating rod (31) is located at the center of the plate (24). Inside the limiting plate (30), one end of the actuating rod (31) is in contact with the limiting plate (30). Actuating plates (32) are uniformly fixedly connected to the surface of the actuating rod (31), and the actuating plates (32) are stepped. The second actuating wheel (34) and the second gear (25) mesh with the actuating plates (32) on the surface of a set of actuating rods (31). The first actuating wheel (26) and the third gear (28) mesh with the actuating plates (32) on the surface of another set of actuating rods (31).

7. The tail-end independent counting device according to claim 6, characterized in that: The transmission mechanism includes a ratchet (20). A ratchet (20) is fixedly connected to one side of the first counting disc (19) and rotatably connected to the U-shaped shaft (18). A moving tooth (21) that meshes with the ratchet (20) is provided on one side of the first counting disc (19). The moving tooth (21) is arc-shaped, and one end of the moving tooth (21) is a bevel. The edge of the ratchet (20) has alternating bevels and vertical surfaces. The bevel of the moving tooth (21) is perpendicular to the limit. The inclined surfaces of the plate (30) are in contact with each other. One end of the actuating tooth (21) is fixedly connected to a movable column (22), and the movable column (22) is located inside the closed part of the U-shaped clamp (16). One end of the lower cover (1) is fixedly connected to an anti-reverse rod (23), and the top of the anti-reverse rod (23) is in contact with the vertical surface of the ratchet (20). One end of the actuating tooth (21) is fixedly connected to a limit buckle (33), and the limit buckle (33) is rotatably connected to one end of the ratchet (20).

8. The tail-end independent counting device according to claim 7, characterized in that: The actuating tooth (21) and the anti-reverse lever (23) are elastic. The actuating tooth (21), the movable column (22), and the anti-reverse lever (23) are integrated. The first counting disc (19), the ratchet (20), and the second actuating wheel (34) are integrated. The second counting disc (24), the second gear (25), and the first actuating wheel (26) are integrated. The third counting disc (27) and the third gear (28) are integrated. The surfaces of the first counting disc (19), the second counting disc (24), and the third counting disc (27) are all provided with numbers.

9. A method of using the tail-end independent counting device according to any one of claims 1-8, characterized in that: Step 1: Press down, press the cover (4) once, the moving cover (4) drives the toothed plate (11) to move, the moving toothed plate (11) drives the first gear (13) to rotate, the first gear (13) drives the connecting turntable (14) to rotate; Step 2: Transmission. The first gear (13) and the connecting turntable (14) drive one end of the U-shaped clamp (16) to rotate. At this time, the other end of the U-shaped clamp (16) makes a circular motion. One end of the U-shaped clamp (16) drives the movable column (22) to move. Through the U-shaped clamp (16), the movable column (22) and the actuating tooth (21) make a circular motion. The inclined surface of one end of the actuating tooth (21) abuts against the inclined surface of the ratchet (20) until a click is heard. At this time, one end of the actuating tooth (21) is engaged at the edge of the ratchet (20). Step 3: Drive. After the user releases the pressure cap (4), the pressure cap (4), toothed plate (11), first gear (13), connecting turntable (14), U-shaped clamp (16) and movable column (22) are reset under the action of spring (6). Movable column (22) drives the actuating tooth (21) to reverse and reset. The ratchet (20) is rotated by pulling one end of the actuating tooth (21). Step 4: Counting. The ratchet (20) drives the first counting disc (19) and the second actuating wheel (34) to rotate, thereby controlling the numbers on the surface of the first counting disc (19) to rotate. When the first counting disc (19) and the second actuating wheel (34) rotate ten times, the second gear (25), the second counting disc (24) and the first actuating wheel (26) are driven to rotate once through the second actuating wheel (34), the actuating lever (31) and the actuating plate (32). At this time, the numbers on the surface of the second counting disc (24) rotate. When the second counting disc (24) rotates ten times, the second counting disc (24) drives the third gear (28) and the third counting disc (27) to rotate through the actuating lever (31) and the actuating plate (32). At this time, the numbers on the surface of the third counting disc (27) rotate. Through the slider (10), the numbers on the surface of the second counting disc (24) and the third counting disc (27), the number of times the user administers the medication or the remaining number of times the medication is used is recorded.

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