Conveying device with dose positioning function
By introducing a locator and an elastic snap connection structure into the delivery device, the problem of pen core shaking is solved, the functions of firm connection and dosage adjustment are achieved, and the user experience is improved.
Patent Information
- Application Number
- CN202421480324.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-26
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-06-26
AI Technical Summary
In traditional delivery devices, the connection between the pen core and the inner wall of the device is not firm, which causes the pen core to shake during use, affecting the use effect.
The connection structure between the locator and the pen body is combined with an elastic buckle design to ensure a firm connection between the pen core and the device, and the dose adjustment is achieved through the cooperation of the dose drum and the transmission rod.
The connection strength between the refill and the device is improved, ensuring the appearance integrity and structural strength, and realizing the dosage positioning function for easy assembly.
Smart Images
Figure CN223404209U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical tools, in particular to a delivery device with a dosage positioning function. Background Art
[0002] Usually, when treating some patients, the most direct treatment method is to use drugs. Drugs come in various forms, and most drugs are in liquid form. Such exogenous drugs usually need to enter the patient's body to better treat the disease. Usually, exogenous drugs need to be injected into the user's body with the help of an adjustable dosage delivery device;
[0003] Defects of traditional conveying devices: In actual use, most existing conveying devices directly load the pen refill into the device for use. However, since there is a large space between the pen refill and the inner wall of the device, the overall firmness is poor after the pen refill is loaded, and the pen refill is prone to shaking on the inner wall of the device during actual use.
[0004] Therefore, a conveying device that can solve the above problems is urgently needed. Utility Model Content
[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to solve the problem raised in the above background technology that the toxic water vapor generated by most existing drying devices during the drying process will condense and be adsorbed on the inner wall of the device and cannot be cleaned in time.
[0006] To achieve the above-mentioned object, the present invention adopts the following technical solution: a delivery device with a dose positioning function, comprising a delivery device body, a pen cap mounted on the surface of the delivery device body, a refill holder mounted inside the delivery device body, a refill body mounted inside the delivery device body, and a piston mounted inside the delivery device body;
[0007] A screw is installed inside the conveying device body, a positioner is installed inside the conveying device body, a feedback rod is installed inside the conveying device body, and a locking ring is installed inside the conveying device body.
[0008] Preferably, a locking ring is installed inside the conveying device body, a guide sleeve is installed inside the conveying device body, a transmission rod is installed inside the conveying device body, a dose drum is installed inside the conveying device body, a button is installed inside the dose drum, and a spring is installed inside the button.
[0009] Preferably, holes are provided on the surface of the conveying device body, the conveying device body is a cylindrical structure, the diameters at both ends of the conveying device body are slightly smaller than the middle diameter of the conveying device body, and the inner diameter of the pen cap is adapted to the diameters at both ends of the conveying device body.
[0010] Preferably, the inner diameter of the conveying device body is adapted to the surface diameter of the refill rack, a groove is provided on the side of the refill rack, the side of the refill body and the size of the groove provided on the side of the refill rack are adapted to each other, and the refill rack and the refill body are mating components.
[0011] Preferably, an installation groove is provided on the inner wall of the conveying device body, and the size of the locator is compatible with the size of the installation groove provided on the inner wall of the conveying device body. The locator can be snap-fitted and installed in the installation groove provided on the inner wall of the conveying device body. A rectangular hole groove is provided on the surface of the locator, and a buckle is fixedly installed on the surface of the locator.
[0012] Preferably, the outer diameter of the guide sleeve is matched with the inner wall diameter of the delivery device body, the guide sleeve and the delivery device body are mating components, a group of circular holes are opened on the side of the dose drum, the button is matched with the size of the circular holes opened on the side of the dose drum, and the button can slide in the circular holes opened on the side of the dose drum.
[0013] Compared with the prior art, the beneficial effects of the present invention are: by providing a positioner, the connection between the positioner and the pen body tube is more secure, and the connection structure can ensure that the pen body tube has no holes, has a good appearance, and has good structural strength. An elastic snap connection structure with the pen core frame is provided, which has a strong connection strength and is easy to assemble. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 Shows a schematic diagram of the overall structure provided according to an embodiment of the utility model;
[0015] Figure 2 Shows a schematic cross-sectional view of the overall structure provided according to an embodiment of the present utility model;
[0016] Figure 3 A schematic structural diagram of a positioner provided according to an embodiment of the present utility model is shown.
[0017] Legend:
[0018] 1. Conveying device body; 2. Pen cap; 3. Pen refill holder; 4. Pen refill body; 5. Piston; 6. Screw; 7. Positioner; 8. Feedback lever; 9. Locking ring; 10. Guide sleeve; 11. Drive rod; 12. Dosing drum; 13. Button; 14. Spring. DETAILED DESCRIPTION
[0019] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.
[0020] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0021] like Figure 1-3 As shown, in an embodiment of the present invention: a delivery device with a dose positioning function includes a delivery device body 1.
[0022] In specific operation, the surface of the conveying device body 1 is equipped with a pen cap 2, the interior of the conveying device body 1 is equipped with a pen core holder 3, the interior of the conveying device body 1 is equipped with a pen core body 4, and the interior of the conveying device body 1 is equipped with a piston 5;
[0023] A screw 6 is installed inside the conveying device body 1 , a positioner 7 is installed inside the conveying device body 1 , a feedback rod 8 is installed inside the conveying device body 1 , and a locking ring 9 is installed inside the conveying device body 1 .
[0024] A locking ring 9 is installed inside the conveying device body 1, a guide sleeve 10 is installed inside the conveying device body 1, a transmission rod 11 is installed inside the conveying device body 1, a dose drum 12 is installed inside the conveying device body 1, a button 13 is installed inside the dose drum 12, and a spring 14 is installed inside the button 13.
[0025] The surface of the conveying device body 1 is provided with holes and grooves. The conveying device body 1 is a cylindrical structure. The diameters at both ends of the conveying device body 1 are slightly smaller than the middle diameter of the conveying device body 1. The inner diameter of the pen cap 2 is adapted to the diameters at both ends of the conveying device body 1.
[0026] The inner diameter of the conveying device body 1 is adapted to the surface diameter of the refill frame 3. A groove is provided on the side of the refill frame 3. The side of the refill body 4 is adapted to the size of the groove provided on the side of the refill frame 3. The refill frame 3 and the refill body 4 are mating components.
[0027] An installation groove is provided on the inner wall of the conveying device body 1. The size of the locator 7 is compatible with the size of the installation groove provided on the inner wall of the conveying device body 1. The locator 7 can be snap-fitted and installed in the installation groove provided on the inner wall of the conveying device body 1. A rectangular hole is provided on the surface of the locator 7, and a buckle is fixedly installed on the surface of the locator 7.
[0028] The outer diameter of the guide sleeve 10 is adapted to the inner wall diameter of the delivery device body 1. The guide sleeve 10 and the delivery device body 1 are mating components. A group of circular holes are opened on the side of the dose drum 12. The button 13 is adapted to the size of the circular holes opened on the side of the dose drum 12. The button 13 can slide in the circular holes opened on the side of the dose drum 12.
[0029] In summary, the working principle of the present invention is as follows: when it is necessary to limit the metering of the injection of the delivery device body 1, the dose drum 12 is rotated forward and adjusted in the direction of the large dose. The dose drum 12 rotates upward, and the transmission rod 11 is pushed upward by the bottom of the inner circle of the dose drum 12. The transmission rod 11 and the dose drum 12 move upward synchronously. At the same time, the transmission rod 11 is hindered by the feedback rod 8 and does not move in the circumferential direction with the dose drum 12. The transmission rod 11 is pressed downward by the spring 14, and a circle of teeth at the bottom of the inner circle of the dose drum 12 and the bottom teeth of the transmission rod 11 perform a separation / engagement movement. At this time, the bottom teeth of the transmission rod 11 rhythmically hit the circle of teeth at the bottom of the inner circle of the dose drum 12, and a regular adjustment feedback sound is emitted. During this process, Only the locking ring 9 and the dose drum 12 make an upward rotational motion, the transmission rod 11 makes an overall upward movement, and at the same time makes a striking action on the dose drum 12. When adjusting to a large dose, the locking ring 9 follows the dose drum 12 and makes a rotational forward motion along the thread on the outside of the transmission rod 11, and makes a reset rotational backward motion when reversing to adjust to the required dose. When injecting, the dose drum 12, the locking ring 9 and the transmission rod 11 move synchronously. By installing the locator 7 inside the conveying device body 1, since the surface of the locator 7 is equipped with a buckle, the connection between the locator 7 and the conveying device body 1 is more secure, and the connection structure can ensure that the outer shape of the conveying device body 1 has no holes, good appearance, and good structural strength, and provides an elastic buckle connection structure with the refill frame 3, with strong connection strength and easy assembly.
[0030] The above are merely preferred embodiments of the present invention and do not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.
Claims
1. A delivery device with a dose positioning function, comprising a delivery device body (1), characterized in that: A pen cap (2) is installed on the surface of the conveying device body (1), a pen core holder (3) is installed inside the conveying device body (1), a pen core body (4) is installed inside the conveying device body (1), and a piston (5) is installed inside the conveying device body (1); A screw (6) is installed inside the conveying device body (1), a positioner (7) is installed inside the conveying device body (1), a feedback rod (8) is installed inside the conveying device body (1), and a locking ring (9) is installed inside the conveying device body (1).
2. A delivery device with a dose positioning function according to claim 1, characterized in that: A locking ring (9) is installed inside the conveying device body (1), a guide sleeve (10) is installed inside the conveying device body (1), a transmission rod (11) is installed inside the conveying device body (1), a dosage drum (12) is installed inside the conveying device body (1), a button (13) is installed inside the dosage drum (12), and a spring (14) is installed inside the button (13).
3. The delivery device with dosage positioning function according to claim 1, characterized in that: The surface of the conveying device body (1) is provided with holes and grooves. The conveying device body (1) is a cylindrical structure. The diameters at both ends of the conveying device body (1) are slightly smaller than the middle diameter of the conveying device body (1). The inner diameter of the pen cap (2) is adapted to the diameters at both ends of the conveying device body (1).
4. The delivery device with dosage positioning function according to claim 1, characterized in that: The inner diameter of the conveying device body (1) is adapted to the surface diameter of the refill holder (3); a groove is provided on the side of the refill holder (3); the side of the refill body (4) is adapted to the size of the groove provided on the side of the refill holder (3); and the refill holder (3) and the refill body (4) are mutually matched components.
5. The delivery device with dosage positioning function according to claim 1, characterized in that: The inner wall of the conveying device body (1) is provided with a mounting groove, the size of the locator (7) is adapted to the size of the mounting groove provided on the inner wall of the conveying device body (1), and the locator (7) can be snap-fitted and installed in the mounting groove provided on the inner wall of the conveying device body (1). A rectangular hole is provided on the surface of the locator (7), and a buckle is fixedly installed on the surface of the locator (7).
6. The delivery device with dosage positioning function according to claim 2, characterized in that: The outer diameter of the guide sleeve (10) is adapted to the inner wall diameter of the delivery device body (1), and the guide sleeve (10) and the delivery device body (1) are mutually matched components. A group of circular holes are opened on the side of the dose drum (12), and the button (13) is adapted to the size of the circular holes opened on the side of the dose drum (12). The button (13) can slide in the circular holes opened on the side of the dose drum (12).