Injection pen cap positioning and rotating mechanism

Abstract

The utility model discloses an injection pen cap positioning and rotating mechanism which comprises a positioning device and a rotating device connected with the positioning device, the rotating device is connected with a motor, the positioning device comprises a base block and a plurality of positioning barrels arranged on the base block, the rotating device comprises a rotating rod and a rack which are connected with the positioning barrels, and the rack is connected with the base block. The rotating rod is provided with a rotating positioning block, the lower portion of the rotating rod is provided with a first gear meshed with the rack, the upper portion of the motor is connected with a second gear meshed with the rack, and the second gear, the first gear and the rack are matched to drive the positioning barrels to rotate and position at the same time. According to the utility model, the pen caps of various injection pens with different specifications can be compatible and simultaneously positioned and assembled, and the replacement mode is rapid and convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection pen equipment field especially, and it relates to a kind of injection pen cap positioning rotating mechanism. BACKGROUND

[0002] In recent years, with the prevalence of diabetes and obesity, GLP-1 drugs as an innovative treatment, more and more attention in the world. At the same time, to meet the growing demand for convenience, also need to provide a number of innovative drug delivery system, further promote the popularity of GLP-1 drugs. Pen injector and automatic injection pen for the representative product, with convenient operation and efficient drug delivery experience, become the ideal choice for patients in family medication and daily management.

[0003] The existing injection pen assembly equipment can only position and assemble one or two caps at a time, and cannot position and assemble caps of different specifications of injection pens, so the work efficiency is very low. UTILITY MODEL CONTENT

[0004] In view of the above-mentioned deficiencies of the existing injection pen assembly equipment, the utility model can position and assemble caps of different specifications of injection pens at the same time, and the replacement is quick and convenient.

[0005] To achieve the above-mentioned purpose, the embodiments of the utility model adopt the following technical solutions:

[0006] An injection pen cap positioning rotating mechanism comprises a positioning device and a rotating device connected with the positioning device, the rotating device is connected with a motor, the positioning device comprises a base block and a plurality of positioning barrels arranged on the base block, the rotating device comprises a rotating rod connected with the positioning barrel and a rack, the rotating rod is provided with a rotating positioning block, the lower part of the rotating rod is provided with a first gear engaged with the rack, the upper part of the motor is connected with a second gear engaged with the rack, and the plurality of positioning barrels are driven to rotate and position at the same time through the cooperation of the second gear, the first gear and the rack.

[0007] According to one aspect of the utility model, the rotating device further comprises a slide rail set connected with the rack.

[0008] According to one aspect of the utility model, the slide rail set comprises a guide rail and a sliding block.

[0009] According to one aspect of the utility model, the sliding block comprises two sliding blocks arranged at intervals.

[0010] According to one aspect of the utility model, one end of the sliding block is connected with the upper end of the rack, and the other end of the sliding block is connected with the lower end of the guide rail.

[0011] According to one aspect of this utility model, the slide rail assembly is a linear slide rail assembly.

[0012] According to one aspect of this utility model, the motor is a servo motor.

[0013] According to one aspect of this utility model, the motor is provided with a motor fixing component.

[0014] According to one aspect of the present invention, the rotating positioning block is provided with a positioning hole.

[0015] According to one aspect of the present invention, the positioning barrel is mortised and tenoned with the rotating positioning block.

[0016] The advantages of this utility model are: precise positioning during structural rotation is ensured by using positioning holes on each rotating positioning block and precise rotation angles of the servo motor; at the same time, the positioning barrel and the rotating positioning block are connected by mortise and tenon joints for quick mold replacement, ensuring equipment compatibility and improving equipment utilization. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 for Figure 1 A cross-sectional view along the AA direction.

[0020] 1. Positioning barrel; 2. Rotary positioning block; 21. Positioning hole; 3. Base block; 4. First gear; 5. Rack; 6. Slide rail assembly; 61. Slider; 62. Guide rail; 7. Second gear; 8. Coupling; 9. Motor; 10. Rotating rod; 11. Placement slot; 12. Pen cap; 13. Motor fixing part. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1:

[0023] As Figure 1 , Figure 2 shown, a kind of injection pen cap positioning rotation mechanism, including positioning device and the rotation device connected with positioning device, rotation device is connected with motor 9, positioning device includes base block 3 and the positioning barrel 1 of detachable connection with base block 3, rotation device includes the rotation rod 10 of connection with positioning barrel 1 and rack 5, rotation rod 10 is equipped with rotation positioning block 2, the lower part of rotation rod 10 is equipped with the first gear 4 engaged with rack 5, motor 9 is connected with shaft coupling 8, the upper part of shaft coupling 8 is equipped with the second gear 7 engaged with rack 5, simultaneously drive several positioning barrels 1 to carry out rotation positioning by the cooperation of second gear 7, first gear 4 and rack 5.When using, the cap 12 of injection pen is placed into positioning barrel 1, then motor 9 is started, drives second gear 7 to rotate by shaft coupling 8, second gear 7 and rack 5 are engaged, to drive first gear 4 to rotate, by rotation rod 10, rotation positioning block 2 conduction rotation, so that positioning barrel 1 rotates.

[0024] Positioning barrel 1 is detachably connected with rotation rod 10, and the positioning barrel 1 of different specifications of injection pen cap 12 can be replaced according to actual needs.

[0025] The upper end of positioning barrel 1 is provided with a placing groove 11 for clamping the cap 12.

[0026] In practical application, motor 9 is a servo motor. The rotation angle can be more accurately controlled by servo motor.

[0027] In practical application, motor 9 is provided with a motor fixing part 13. The operation of motor 9 is more stable.

[0028] In practical application, rotation positioning block 2 is arranged on the upper part of rotation rod 10.

[0029] In practical application, rotation positioning block 2 is provided with a positioning hole 21. The cap 12 after fixed installation is fixed by the positioning hole 21.

[0030] In practical application, motor is provided with shaft coupling 8. The transmission efficiency of second gear is improved by shaft coupling 8.

[0031] In practical application, positioning barrel 1 and rotation positioning block 2 are connected in dovetail joint. The dovetail joint can realize quick replacement of mold and ensure compatibility of equipment.

[0032] The beneficial effects of the utility model are as follows: the positioning hole 21 on each rotation positioning block 2 and the accurate rotation angle of servo motor ensure accurate positioning in structure rotation; meanwhile, the dovetail joint between positioning barrel 1 and rotation positioning block 2 realizes quick replacement of mold and ensures compatibility of equipment, improves the utilization rate of equipment; rack 5 is used to realize rotation positioning of multiple positioning barrels 1.

[0033] Embodiment 2:

[0034] As shown in Figure 1 , Figure 2 , a pen cap positioning and rotating mechanism of injection pen includes a positioning device and a rotating device connected with the positioning device, the rotating device is connected with a motor 9, the positioning device includes a base block 3 and a plurality of positioning barrels 1 detachably connected with the base block 3, the rotating device includes a rotating rod 10 connected with the positioning barrels 1, a rack 5 and a slide rail set 6 connected with the rack 5, the rotating rod 10 is provided with a rotating positioning block 2, the lower part of the rotating rod 10 is provided with a first gear 4 engaged with the rack 5, the motor 9 is connected with a shaft coupling 8, the upper part of the shaft coupling 8 is provided with a second gear 7 engaged with the rack 5, and the plurality of positioning barrels 1 are simultaneously rotated through the cooperation of the second gear 7, the first gear 4 and the rack 5. The transmission of the second gear 7 and the first gear 4 is more stable through the slide rail set 6.

[0035] In use, the pen cap 12 of the injection pen is placed in the positioning barrel 1, and then the motor 9 is started to rotate the second gear 7 through the shaft coupling 8, the rack 5 is guided by the slide rail set 6 to move forward, the second gear 7 and the rack 5 are engaged, thereby driving the first gear 4 to rotate, and the rotating rod 10 and the rotating positioning block 2 are used to conduct rotation, so that the positioning barrel 1 rotates.

[0036] The positioning barrel 1 is detachably connected with the base block 3, and the positioning barrel 1 suitable for the pen cap 12 of the injection pen of different specifications can be replaced according to actual needs.

[0037] The upper end of the positioning barrel 1 is provided with a placing groove 11 used for clamping the pen cap 12.

[0038] In actual application, the slide rail set 6 includes a guide rail 62 and a sliding block 61.

[0039] In actual application, the sliding block 61 includes two sliding blocks 61 arranged at intervals, so that the slide rail set 6 slides more stably.

[0040] In actual application, the slide rail set 6 is a straight line slide rail set.

[0041] In actual application, the motor 9 is a servo motor. The rotation angle can be more accurately controlled through the servo motor.

[0042] In actual application, the motor 9 is provided with a motor fixing piece 13, so that the motor 9 operates more stably.

[0043] In actual application, the motor is provided with the shaft coupling 8. The transmission efficiency of the second gear is improved through the shaft coupling 8.

[0044] In actual application, the rotating positioning block 2 is arranged on the upper part of the rotating rod 10.

[0045] In practical application, the rotating positioning block 2 is provided with a positioning hole 21.

[0046] In practical application, the positioning barrel 1 is connected with the rotating positioning block 2 in a mortise and tenon mode.

[0047] The beneficial effects of the utility model are as follows: the positioning hole 21 on each rotating positioning block 2 and the precise rotation angle of the servo motor ensure the precise positioning in the structure rotation; meanwhile, the mortise and tenon mode is used for the quick connection between the positioning barrel 1 and the rotating positioning block 2, the quick replacement of the mold is realized, the compatibility of the equipment is ensured, the utilization rate of the equipment is improved; the rack 5 is used for realizing the simultaneous rotation positioning of multiple positioning barrels 1.

[0048] The above is only a specific implementation manner of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can easily think of the changes or replacements within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the protection scope of the claims.

Claims

1. A pen cap positioning and rotating mechanism for an injection pen, comprising a positioning device and a rotating device connected to the positioning device, a motor (9) being connected to the rotating device, characterized in that, The positioning device comprises a base block (3) and a plurality of positioning barrels (1) arranged on the base block (3), the rotating device comprises a rotating rod (10) connected with the positioning barrels (1) and a rack (5), the rotating rod (10) is provided with a rotating positioning block (2), the lower part of the rotating rod (10) is provided with a first gear (4) engaged with the rack (5), and the upper part of the motor (9) is connected with a second gear (7) engaged with the rack (5), so that the plurality of positioning barrels (1) are driven to rotate and position simultaneously through the cooperation of the second gear (7), the first gear (4) and the rack (5).

2. The injection pen cap positioning and rotating mechanism of claim 1, wherein, The rotating device further comprises a slide rail group (6) connected with the rack (5).

3. The injection pen cap positioning and rotating mechanism of claim 2, wherein, The slide rail group (6) comprises a guide rail (62) and a sliding block (61).

4. The injection pen cap positioning and rotating mechanism of claim 3, wherein, The sliding block (61) comprises two sliding blocks (61) arranged at intervals.

5. The injection pen cap positioning and rotating mechanism of claim 3, wherein, One end of the sliding block (61) is connected with the upper end of the rack (5), and the other end of the sliding block (61) is connected with the lower end of the guide rail (62).

6. The injection pen cap positioning and rotating mechanism of claim 2, wherein, The slide rail group (6) is a linear slide rail group.

7. The injection pen cap positioning and rotating mechanism of claim 1, wherein, The motor (9) is a servo motor.

8. The injection pen cap positioning and rotating mechanism of claim 1, wherein, The motor (9) is provided with a motor fixing piece (13).

9. The injection pen cap positioning and rotating mechanism of claim 1, wherein, The rotating positioning block (2) is provided with a positioning hole (21).

10. The injection pen cap positioning and rotating mechanism of any of claims 1 to 9, wherein, The positioning barrel (1) is connected with the rotating positioning block (2) in a mortise and tenon joint manner.

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