Rotary extrusion type quantitative medicine applying device

Abstract

The utility model discloses a rotary extrusion type quantitative medicine applying device which comprises an ointment containing pipe, an ointment inlet and outlet pipe is arranged at the upper end of the ointment containing pipe, a lower cover capable of rotating relative to the ointment containing pipe is arranged at the tail end of the ointment containing pipe, and a medicine extruding piston used for extruding ointment out of the ointment inlet and outlet pipe is arranged in the ointment containing pipe. The lower end of the medicine squeezing piston is connected with a screw rod extending into the lower cover, a rotating sleeve capable of being driven by the lower cover to rotate is arranged in the lower cover, the rotating sleeve is in threaded connection with the screw rod, and a medicine squeezing column matched with the ointment inlet and outlet pipe is arranged at the upper end of the medicine squeezing piston. A rotating sleeve in threaded connection with a screw rod is arranged in a lower cover, so that the screw rod can push a medicine squeezing piston to move in an ointment containing pipe by rotating the lower cover, and quantitative application of ointment is achieved; the medicine squeezing column is arranged at the upper end of the medicine squeezing piston, so that the ointment remaining in the ointment inlet and outlet pipe can be squeezed out through the medicine squeezing column, the remaining ointment is reduced, and medicine waste is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and particularly relates to a rotary extrusion type quantitative medicine applicator. Background Art

[0002] The dermatology department belongs to the surgical department and mainly treats various skin diseases. Common skin diseases include psoriasis, herpes, rosacea, impetigo, purulent bacterial infections, scars, tinea, ichthyosis, bromhidrosis, acne, folliculitis, alopecia areata, male inflammation, infant diaper rash, corn, freckles, dyshidrosis, demodex dermatitis, vitiligo, eczema, onychomycosis, scleroderma, skin pruritus, oral diseases, hair removal, chloasma, etc. When treating skin diseases, it is usually necessary to use a medicine applicator to apply the ointment to the affected area. However, the existing applicators cannot effectively measure the medicine quantitatively, and a large amount of medicine will remain in the applicator, which is easy to cause waste of medicine. Content of the Utility Model

[0003] Aiming at the deficiencies of the existing technology, the utility model provides a rotary extrusion type quantitative medicine applicator, which can realize accurate quantitative medicine application and avoid waste of medicine.

[0004] To achieve the above purpose, the utility model adopts the following technical scheme:

[0005] A rotary extrusion type quantitative medicine applicator includes an ointment containing tube. The upper end of the ointment containing tube is provided with an ointment inlet and outlet tube. The tail end of the ointment containing tube is provided with a lower cover that can rotate relative to the ointment containing tube. An extrusion piston for extruding the ointment from the ointment inlet and outlet tube is arranged in the ointment containing tube. The lower end of the extrusion piston is connected with a screw rod extending into the lower cover. A rotary sleeve that can be driven to rotate by the lower cover is arranged in the lower cover. The rotary sleeve is in threaded connection with the screw rod. The upper end of the extrusion piston is provided with an extrusion column adapted to the ointment inlet and outlet tube. By arranging a rotary sleeve in the lower cover that is in threaded connection with the screw rod, the screw rod can be rotated to push the extrusion piston to move in the ointment containing tube through rotating the lower cover, so as to realize the quantitative application of the ointment. By arranging an extrusion column adapted to the ointment inlet and outlet tube at the upper end of the extrusion piston, the ointment remaining in the ointment inlet and outlet tube can be extruded through the extrusion column, reducing the remaining ointment and avoiding waste of medicine.

[0006] As a preferred scheme, a first external thread extending spirally is arranged on the circumferential side of the screw rod, and a first internal thread corresponding to the first external thread is arranged on the inner side of the rotary sleeve. The screw rod is connected with the rotary sleeve through the cooperation of the first external thread and the first internal thread.

[0007] As a preferred solution, a limiting plate extending axially is provided on the circumferential side of the rotating sleeve, a limiting groove corresponding to the limiting plate is provided on the inner side of the lower cover, a baffle protruding radially outward is provided at the lower end of the rotating sleeve, and a protruding portion protruding inward is provided at the lower part of the inner side of the lower cover. During assembly, the limiting plate is embedded in the corresponding limiting groove, and the protruding portion blocks the upper side of the baffle.

[0008] As a preferred solution, a limiting convex ring is provided at the upper end of the rotating sleeve, and a limiting groove corresponding to the limiting convex ring is provided on the inner side of the lower end of the ointment containing tube. During assembly, the limiting convex ring is embedded in the limiting groove and can slide in the limiting groove.

[0009] As a preferred solution, it further includes a medicine outlet nozzle detachably connected to the ointment containing tube. A connecting sleeve is provided at the upper end of the ointment containing tube and located outside the ointment inlet and outlet tube. The inner side wall of the connecting sleeve is provided with a second internal thread, and the lower end of the medicine outlet nozzle is provided with a second external thread. The medicine outlet nozzle is detachably connected to the ointment containing tube by mating the second external thread with the second internal thread.

[0010] As a preferred solution, a storage hole for placing the medicine outlet nozzle is provided at the lower end of the lower cover, and the storage hole has a downward opening.

[0011] As a preferred solution, a relief hole with an opening downward is provided at the lower end of the screw rod, and the relief hole communicates with the storage hole.

[0012] As a preferred solution, it further includes an upper cover. A plug column adapted to the ointment inlet and outlet tube is provided at the top of the inner side of the upper cover. An L-shaped card slot is provided on the circumferential side of the upper end of the lower cover, and a card block corresponding to the L-shaped card slot is provided on the inner side of the lower end of the upper cover. During assembly, the upper cover is provided outside the ointment containing tube, the plug column is inserted into the opening of the ointment inlet and outlet tube, and the card block is rotationally engaged in the L-shaped card slot.

[0013] As a preferred solution, the ointment containing tube is formed of a transparent material, and indicating scales are provided on the ointment containing tube.

[0014] As a preferred solution, a connecting head is provided at the upper end of the screw rod, and a socket hole corresponding to the connecting head is provided at the lower end of the squeezing piston. During assembly, the connecting head is embedded in the socket hole.

[0015] Compared with the prior art, the present utility model has obvious advantages and beneficial effects. Specifically, by providing a rotating sleeve threadedly connected to the screw rod inside the lower cover, the screw rod can be rotated by rotating the lower cover to push the squeezing piston to move inside the ointment containing tube, realizing quantitative application of the ointment; by providing a squeezing column adapted to the ointment inlet and outlet tube at the upper end of the squeezing piston, the ointment remaining in the ointment inlet and outlet tube can be squeezed out through the squeezing column, reducing the remaining ointment and avoiding waste of the medicine.

[0016] In order to more clearly explain the structural features, technical means and specific purposes and functions achieved by the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments: BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an assembly structure diagram of an embodiment of the utility model;

[0018] Figure 2 It is a cross-sectional structural diagram of an embodiment of the utility model;

[0019] Figure 3 It is a preliminary exploded structural diagram of an embodiment of the utility model;

[0020] Figure 4 This is a diagram of the internal structure of the upper cover of an embodiment of the utility model;

[0021] Figure 5 It is a further exploded structural diagram of an embodiment of the utility model;

[0022] Figure 6 It is an exploded structural diagram of a medicine extruding piston and a screw rod according to an embodiment of the utility model.

[0023] Description of the accompanying drawings:

[0024] 10. Ointment storage tube 11. Ointment inlet and outlet tube 12. Connecting sleeve

[0025] 13. second internal thread 14. limiting groove 20. upper cover

[0026] 21, plug 22, block 30, lower cover

[0027] 31. Limiting groove 32. L-shaped slot 33. Storage hole

[0028] 34, protrusion 40, medicine outlet nozzle 41, second external thread

[0029] 42, extension tube 50, medicine extrusion piston 51, medicine extrusion column

[0030] 60, screw 61, first external thread 62, connector

[0031] 63, clearance hole 70, rotating sleeve 71, first internal thread

[0032] 72. Limiting plate 73. Limiting convex ring 74. Baffle. DETAILED DESCRIPTION

[0033] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the indicated position or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0034] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0035] As Figure 1-6 shown, a rotary extrusion type quantitative medicament applicator includes an ointment containing tube 10, an upper cover 20, a lower cover 30, and a medicine outlet nozzle 40. The upper end of the ointment containing tube 10 is provided with an ointment inlet and outlet tube 11. The tail end of the ointment containing tube 10 is provided with a lower cover 30 that can rotate relative to the ointment containing tube 10. An ointment extrusion piston 50 for extruding the ointment from the ointment inlet and outlet tube 11 is arranged inside the ointment containing tube 10. A screw rod 60 extending into the lower cover 30 is connected to the lower end of the ointment extrusion piston 50. A rotary sleeve 70 that can be driven to rotate by the lower cover 30 is arranged inside the lower cover 30. The rotary sleeve 70 is in threaded connection with the screw rod 60. An extrusion column 51 adapted to the ointment inlet and outlet tube 11 is arranged at the upper end of the ointment extrusion piston 50. In the present utility model, the ointment containing tube 10 is formed of a transparent material, and an indication scale (not shown) is provided on the ointment containing tube 10, so that the use condition of the ointment inside the ointment containing tube 10 can be observed in real time, ensuring the quantitative output of the ointment. The ointment can be loaded from the ointment inlet and outlet tube 11 during use.

[0036] In the present utility model, a plug post 21 adapted to the ointment inlet and outlet tube 11 is provided at the top inside the upper cover 20. An L-shaped card slot 32 is provided on the peripheral side of the upper end of the lower cover 30. A card block 22 corresponding to the L-shaped card slot 32 is provided inside the lower end of the upper cover 20. During assembly, the upper cover 20 is arranged outside the ointment containing tube 10. The plug post 21 is inserted into the opening of the ointment inlet and outlet tube 11, and the card block 22 is rotated and snapped into the L-shaped card slot 32. A storage hole 33 for placing the medicine outlet nozzle 40 is provided at the lower end of the lower cover 30. The storage hole 33 has a downward opening. The lower end of the screw rod 60 has a relief hole 63 with a downward opening, and the relief hole 63 communicates with the storage hole 33. When not in use, the medicine outlet nozzle 40 is inserted into the storage hole 33, and the extension tube 42 of the medicine outlet nozzle 40 is inserted into the relief hole 63, which is convenient to use and does not increase the overall volume of the medicine applicator.

[0037] Specifically, a first external thread 61 extending spirally is provided on the peripheral side of the screw rod 60. A first internal thread 71 corresponding to the first external thread 61 is provided inside the rotary sleeve 70. The screw rod 60 is connected to the rotary sleeve 70 through the cooperation of the first external thread 61 and the first internal thread 71. An axially extending limiting plate 72 is provided on the peripheral side of the rotary sleeve 70. A limiting groove 31 corresponding to the limiting plate 72 is provided inside the lower cover 30. A baffle 74 protruding radially outward is provided at the lower end of the rotary sleeve 70. A protruding portion 34 protruding inward is provided at the lower part inside the lower cover 30. During assembly, the limiting plate 72 on the rotary sleeve 70 is aligned with the limiting groove 31, and then the rotary sleeve 70 is pressed downward so that the baffle 74 squeezes through the protruding portion 34, thereby completing the assembly of the rotary sleeve 70 and the lower cover 30. At this time, the limiting plate 72 is inserted into the corresponding limiting groove 31, so that the lower cover 30 can drive the rotary sleeve 70 to rotate together, and the protruding portion 34 blocks the upper side of the baffle 74 to prevent the rotary sleeve 70 from disengaging from the lower cover 30 upward.

[0038] In the present utility model, a limiting convex ring 73 is provided at the upper end of the rotary sleeve 70. A limiting groove 14 corresponding to the limiting convex ring 73 is provided inside the lower end of the ointment containing tube 10. During assembly, the limiting convex ring 73 is inserted into the limiting groove 14 and can slide in the limiting groove 14.

[0039] Specifically, a connecting sleeve 12 is provided at the upper end of the ointment containing tube 10 outside the ointment inlet and outlet tube 11. A second internal thread 13 is provided on the inner side wall of the connecting sleeve 12. A second external thread 41 is provided at the lower end of the medicine outlet nozzle 40. When in use, the medicine outlet nozzle 40 is detachably connected to the ointment containing tube 10 through the cooperation of the second external thread 41 and the second internal thread 13, and the ointment inlet and outlet tube 11 extends into the medicine outlet nozzle 40.

[0040] In the present utility model, a connection head 62 is provided at the upper end of the screw rod 60, and a socket hole corresponding to the connection head 62 is provided at the lower end of the medicine extrusion piston 50. During assembly, the connection head 62 is embedded in the socket hole.

[0041] In summary, in the present utility model, by providing a rotating sleeve 70 threadedly connected to the screw rod 60 within the lower cover 30, the screw rod 60 can be rotated by rotating the lower cover 30 to push the medicine extrusion piston 50 to move within the ointment containing tube 10, thereby achieving quantitative application of the ointment; by providing an extrusion column 51 adapted to the ointment inlet and outlet tube 11 at the upper end of the medicine extrusion piston 50, the ointment remaining in the ointment inlet and outlet tube 11 can be extruded through the extrusion column 51, reducing the remaining ointment and avoiding waste of the medicine.

[0042] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Therefore, any modifications, equivalent replacements, improvements, etc. made to the above embodiments based on the technical reality of the present utility model still fall within the scope of the technical solutions of the present utility model.

Claims

1. A rotary extrusion type quantitative medicine applicator, characterized in that: It comprises an ointment containing tube, the upper end of which is provided with an ointment inlet and outlet tube, the tail end of which is provided with a lower cover which can rotate relative to the ointment containing tube, the ointment containing tube is provided with a medicine squeezing piston which is used to squeeze the ointment from the ointment inlet and outlet tube, the lower end of which is connected with a screw which extends into the lower cover, the lower cover is provided with a rotating sleeve which can be driven to rotate by the lower cover, the rotating sleeve is threadedly connected with the screw, and the upper end of the medicine squeezing piston is provided with a medicine squeezing column which is adapted to the ointment inlet and outlet tube.

2. A rotary extrusion type quantitative medicine applicator according to claim 1, characterized in that: A first external thread extending helically is provided on the circumference of the screw rod, a first internal thread corresponding to the first external thread is provided on the inner side of the rotating sleeve, and the screw rod is connected to the rotating sleeve through the cooperation of the first external thread and the first internal thread.

3. A rotary extrusion type quantitative medicine applicator according to claim 1, characterized in that: An axially extending limit plate is provided on the circumferential side of the rotating sleeve, a limit groove corresponding to the limit plate is provided on the inner side of the lower cover, a baffle protruding radially outward is provided at the lower end of the rotating sleeve, and an inwardly protruding protrusion is provided at the lower part of the inner side of the lower cover. During assembly, the limit plate is embedded in the corresponding limit groove, and the protrusion is blocked on the upper side of the baffle.

4. A rotary extrusion type quantitative medicine applicator according to claim 1, characterized in that: A limiting convex ring is provided at the upper end of the rotating sleeve, and a limiting groove corresponding to the limiting convex ring is provided on the inner side of the lower end of the ointment containing tube. During assembly, the limiting convex ring is embedded in the limiting groove and can slide in the limiting groove.

5. The rotary extrusion type quantitative medicine applicator according to claim 1, characterized in that: It also includes a medicine outlet nozzle separately connected to the ointment containing tube, the upper end of the ointment containing tube is provided with a connecting sleeve located outside the ointment inlet and outlet tube, the inner side wall of the connecting sleeve is provided with a second internal thread, and the lower end of the medicine outlet nozzle is provided with a second external thread. The medicine outlet nozzle is detachably connected to the ointment containing tube through the cooperation of the second external thread and the second internal thread.

6. A rotary extrusion type quantitative medicine applicator according to claim 5, characterized in that: A storage hole for placing the medicine dispensing nozzle is provided at the lower end of the lower cover, and the storage hole has a downward opening.

7. A rotary extrusion type quantitative medicine applicator according to claim 6, characterized in that: The lower end of the screw rod is provided with a clearance hole opening downward, and the clearance hole is communicated with the receiving hole.

8. The rotary extrusion type quantitative medicine applicator according to claim 1, characterized in that: It also includes an upper cover, the top of the inner side of the upper cover is provided with a plug column adapted to the ointment inlet and outlet tube, the circumferential side of the upper end of the lower cover is provided with an L-shaped slot, and the inner side of the lower end of the upper cover is provided with a card block corresponding to the L-shaped slot. During assembly, the upper cover is arranged on the outer side of the ointment containing tube, the plug column is embedded in the opening of the ointment inlet and outlet tube, and the card block is rotated and inserted into the L-shaped slot.

9. The rotary extrusion type quantitative medicine applicator according to claim 8, characterized in that: The ointment containing tube is formed of a transparent material and is provided with an indicating scale.

10. The rotary extrusion type quantitative medicine applicator according to claim 1, characterized in that: The upper end of the screw rod is provided with a connecting head, and the lower end of the medicine extruding piston is provided with a sleeve hole corresponding to the connecting head. During assembly, the connecting head is embedded in the sleeve hole.

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