Injection pen grabbing and releasing mechanism

Abstract

The utility model discloses a grabbing and releasing mechanism for an injection pen. The grabbing and releasing mechanism comprises a clamping cylinder, a chuck and a limiting top head, the clamping cylinder is provided with a plurality of output ends, and the two output ends have a synchronous closing or synchronous separating motion state; the clamping head is fixedly mounted at the output end, and the clamping head is closed under the driving of the clamping air cylinder and is used for clamping and fixing a to-be-clamped piece; the limiting top head is arranged on the clamping air cylinder, and the end of the limiting top head abuts against the upper surface of a to-be-clamped piece. The injection pen parts are transversely fixed through the chuck, the injection pen parts are prevented from inclining due to shaking in the vertical direction in the grabbing and releasing process, meanwhile, the injection pen parts are longitudinally positioned in cooperation with the limiting ejector head, and accurate butt joint between the injection pen parts can be achieved; and therefore, the injection pen assembling procedure can be smoothly carried out.

Description

Technical Field

[0001] The utility model relates to the field of injection pen assembly, in particular to a grasping and releasing mechanism of the injection pen. Background Art

[0002] An injection pen is a product that combines drugs and syringes into one. It looks like a fountain pen and is mainly composed of a pen cap, a refill, a syringe barrel and a needle. The drug is stored in the refill and is generally used with a specific injection pen. When using it, remove the pen cap, install the injection needle to exhaust air, adjust the required dose and drive the injection button to achieve and complete drug delivery.

[0003] During the assembly process of the injection pen, a grasping and placing mechanism is required to grasp and place the components of the injection pen. Since the components of the injection pen need to be precisely docked, the grasping and placing of the components of the injection pen need to be performed precisely during the grasping and placing process. At present, the grasping and placing mechanism of the injection pen has the problem of components tilting when grasping and placing the components of the injection pen, resulting in the inability to precisely dock the components of the injection pen, which in turn causes the failure of the assembly of the injection pen, and there are certain defects. Utility Model Content

[0004] The utility model aims to provide a grasping and placing mechanism for an injection pen, so as to realize accurate grasping and placing of injection pen components and ensure smooth assembly of the injection pen.

[0005] In order to solve the above technical problems, the utility model provides a gripping and releasing mechanism for an injection pen, comprising a clamping cylinder, a clamping head and a limiting top head;

[0006] The clamping cylinder has a plurality of output ends, and two of the output ends have a synchronous closing or synchronous separation movement state;

[0007] The clamp is fixedly mounted on the output end, and the clamp is closed and clamps the object to be clamped under the drive of the clamping cylinder;

[0008] The limiting plug is arranged on the clamping cylinder, and the end of the limiting plug abuts against the upper surface of the part to be clamped.

[0009] Furthermore, a mounting plate is fixedly provided on the clamping cylinder, and a mounting hole is provided on the mounting plate.

[0010] Furthermore, a plurality of the chucks are provided, and the plurality of the chucks are circumferentially distributed at the end of the output end.

[0011] Furthermore, the clamping head is provided with a fixing cavity matching with the part to be clamped, and when the two clamping heads are closed, the part to be clamped is clamped in the fixing cavity.

[0012] Furthermore, an observation slot is provided on the inner side of the clamp, and the observation slot is used to observe the clamping state of the part to be clamped.

[0013] Furthermore, the limiting head is fixedly mounted on the clamping cylinder via a bracket, and the limiting head is located between the two clamps.

[0014] Furthermore, the limiting head is an elastic piece.

[0015] Furthermore, the elastic member is one of a rubber column and a silicone column.

[0016] Compared with the prior art, the utility model has at least the following beneficial effects:

[0017] The utility model fixes the injection pen components horizontally by means of the clamping head, thereby preventing the injection pen components from tilting due to vertical shaking during the grasping and releasing process, and at the same time cooperates with the limiting head to longitudinally position the injection pen components, so as to achieve accurate docking between the injection pen components, thereby ensuring the smooth progress of the injection pen assembly process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the gripping and releasing mechanism of the injection pen of the utility model;

[0019] Figure 2 It is a schematic diagram of the chuck structure of the gripping and releasing mechanism of the injection pen of the utility model;

[0020] Figure 3 It is a schematic diagram of the structure of the clamping state of the grasping and releasing mechanism of the injection pen of the utility model. DETAILED DESCRIPTION

[0021] The following will be described in more detail with reference to the schematic diagram of the gripping and releasing mechanism of the injection pen of the present invention, wherein the preferred embodiment of the present invention is shown, and it should be understood that the present invention described herein can be modified by a person skilled in the art, while still achieving the advantageous effects of the present invention. Therefore, the following description should be understood as being widely known to a person skilled in the art, and not as a limitation to the present invention.

[0022] The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more apparent from the following description and claims. It should be noted that the accompanying drawings are in very simplified form and in non-precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0023] like Figure 1 and Figure 2As shown, the embodiment of the utility model provides a gripping and releasing mechanism for an injection pen, comprising a clamping cylinder 1 , a clamping head 2 and a limiting head 3 .

[0024] Specifically, the clamping cylinder 1 has a plurality of output ends 4, and two of the output ends 4 have a synchronous closing or synchronous separating movement state.

[0025] The chuck 2 is fixedly mounted on the output end 4 , and the chuck 2 is closed and clamps the object to be clamped under the drive of the clamping cylinder 1 .

[0026] The limiting plug 3 is arranged on the clamping cylinder 1, and the end of the limiting plug 3 abuts against the upper surface of the part to be clamped.

[0027] In this embodiment, when the injection pen component needs to be clamped and fixed, the output end 4 of the clamping cylinder 1 is in a separated state. At this time, there is a certain gap between the two chucks 2. When the grasping and releasing mechanism is moved to the clamping position, the output end 4 of the clamping cylinder 1 drives the chucks 2 to close, and the chucks 2 complete the clamping and fixing of the injection pen component. At the same time, the limiting head 3 abuts against the upper surface of the injection pen component. The combination of the two realizes the full-dimensional clamping and fixing of the injection pen component, facilitates the subsequent precise docking between the injection pen components, and thus ensures the smooth progress of the injection pen assembly process.

[0028] In a specific embodiment, a mounting plate 5 is fixedly provided on the clamping cylinder 1, and a mounting hole 6 is provided on the mounting plate 5. The provision of the mounting plate 5 and the mounting hole 6 facilitates the installation and fixation of the gripping and releasing mechanism.

[0029] Furthermore, a plurality of the chucks 2 are provided, and the plurality of the chucks 2 are circumferentially distributed at the end of the output end 4 .

[0030] Specifically, the clamping head 2 is provided with a fixing cavity 7 matching with the part to be clamped, and when the two clamping heads 2 are closed, the part to be clamped is clamped in the fixing cavity 7 .

[0031] In this embodiment, if Figure 3 As shown, the injection pen component 10 (pen core) is cylindrical and has a protrusion at the end. When the injection pen component is clamped and fixed, the protrusion of the injection pen component enters into the fixing cavity 7 and is locked, and is not easy to fall off in the vertical direction. At the same time, the clamp 2 clamps and fixes the side wall of the injection pen component to prevent the injection pen component from shaking in the horizontal direction.

[0032] In a specific embodiment, in order to facilitate intuitive observation of the clamping state of the clamp 2 on the injection pen component, an observation groove 8 is provided on the inner side of the clamp 2 .

[0033] Furthermore, the limiting plug 3 is fixedly mounted on the clamping cylinder 1 via a bracket 9 , and the limiting plug 3 is located between the two clamps 2 .

[0034] Specifically, the limiting head 3 is an elastic member, and the elastic member is one of a rubber column and a silicone column.

[0035] When clamping and fixing the injection pen component, the clamp head 2 is in a separated state, and the gripping and releasing mechanism moves downward until the raised portion of the injection pen component is flush with the fixing cavity 7. At this time, the limiting pin 3 is compressed and in close contact with the upper surface of the injection pen component. When the clamp head 2 clamps and fixes the top of the injection pen component, the elastic limiting of the limiting pin 3 effectively prevents the shaking of the injection pen component, thereby achieving accurate docking during the assembly of the injection pen component.

[0036] Compared with the prior art, the utility model has at least the following beneficial effects:

[0037] The utility model fixes the injection pen components horizontally by means of the clamping head, thereby preventing the injection pen components from tilting due to vertical shaking during the grasping and releasing process, and at the same time cooperates with the limiting head to longitudinally position the injection pen components, so as to achieve accurate docking between the injection pen components, thereby ensuring the smooth progress of the injection pen assembly process.

[0038] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A gripping and releasing mechanism for an injection pen, characterized in that: It includes a clamping cylinder, a chuck and a limit head; The clamping cylinder has a plurality of output ends, and two of the output ends have a synchronous closing or synchronous separation movement state; The clamp is fixedly mounted on the output end, and the clamp is closed and clamps the object to be clamped under the drive of the clamping cylinder; The limiting plug is arranged on the clamping cylinder, and the end of the limiting plug abuts against the upper surface of the part to be clamped.

2. The gripping and releasing mechanism of the injection pen according to claim 1, characterized in that: A mounting plate is fixedly arranged on the clamping cylinder, and a mounting hole is opened on the mounting plate.

3. The gripping and releasing mechanism of the injection pen according to claim 1, characterized in that: A plurality of the clamps are provided, and the plurality of the clamps are circumferentially distributed at the end of the output end.

4. The gripping and releasing mechanism of the injection pen according to claim 1, characterized in that: The clamping head is provided with a fixing cavity matching with the piece to be clamped, and when the two clamping heads are closed, the piece to be clamped is clamped in the fixing cavity.

5. The gripping and releasing mechanism of the injection pen according to claim 1, characterized in that: An observation slot is provided on the inner side of the clamp, and the observation slot is used to observe the clamping state of the part to be clamped.

6. The gripping and releasing mechanism of the injection pen according to claim 1, characterized in that: The limiting head is fixedly mounted on the clamping cylinder via a bracket, and the limiting head is located between the two clamps.

7. The gripping and releasing mechanism of the injection pen according to claim 6, characterized in that: The limiting top head adopts an elastic piece.

8. The gripping and releasing mechanism of the injection pen according to claim 7, characterized in that: The elastic member is one of a rubber column and a silicone column.

Images