Dual resilient snap arm connected chemical applicator

Abstract

The utility model discloses a kind of mixed medicine devices of double elastic buckle arm connection, including mixed medicine head and fixed module, the fixed module includes shell, and multiple positioning slots for being used to fix syringe are equipped on the shell, the mixed medicine head and fixed module are connected by double elastic buckle arm structure, the double elastic buckle arm structure includes first elastic buckle arm being equipped on shell, and the front end of the first elastic buckle arm is equipped with fixed column, and the mixed medicine head is equipped with second elastic buckle arm cooperation with first elastic buckle arm, and the second elastic buckle arm is equipped with the clamping hole for fixed column and is inserted, the top of the second elastic buckle arm is equipped with the guide inclined slot of inclined downward;The design of the utility model double elastic buckle arm connection double buckle, can be randomly connected mixed medicine head module, without user to judge whether installation is good, just press to bottom slightly, it can be ensured that mixed medicine head can be installed in place, belong to blind installation design scheme.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically a drug mixer with a double elastic buckle arm connection. Background Technology

[0002] Existing mixing devices use a pull ring design. Since the pull ring is similar to a rope, it adds an extra step for users to carefully check whether it is properly installed in the hole, making it inconvenient to use.

[0003] Due to its structure, pull-ring type mixing heads cannot have a threaded nut connection on the lower end face; they can only rely on a friction-based tight fit. Numerous customer reports indicate that this tight fit can cause the nozzle to fly out uncontrollably after overcoming friction when clogged, leading to medical accidents.

[0004] Most commercially available mixing devices use a zipper or hook mechanism, requiring at least two steps to operate and necessitating basic training before use. First, align the mixing head with the tips of the two syringes, then forcefully insert it until there is no leakage. Next, pull the zipper or hook forward until it aligns with the fixed position in the center of the syringe, then push it in. Utility Model Content

[0005] To address the shortcomings of existing technologies that require time-consuming and labor-intensive installation followed by angle measurement using external measuring devices, this invention provides a mixing device with a double elastic snap-fit ​​arm connection.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0007] This utility model discloses a drug mixer with a double elastic snap-fit ​​arm connection, including a drug mixing head and a fixing module. The fixing module includes a housing, and the housing is provided with multiple positioning grooves for fixing the syringe. The drug mixing head and the fixing module are connected by a double elastic snap-fit ​​arm structure, so that the drug delivery end of the syringe is inserted into the sealing coupling tube in the drug mixing head.

[0008] The dual-elastic latching arm structure includes a first elastic latching arm disposed on the housing, with a fixing post at the front end of the first elastic latching arm, and a second elastic latching arm on the mixing head that cooperates with the first elastic latching arm, with a locking hole on the second elastic latching arm for the fixing post to engage.

[0009] The top of the second elastic buckle arm is provided with a downward-sloping guide groove.

[0010] As a preferred embodiment of the present invention, the first elastic buckle arm includes a first elastic arm disposed on the housing and inclined downward, a second elastic arm disposed vertically downward at the outer end of the first elastic arm, and the fixing post is installed at the front end of the second elastic arm.

[0011] As a preferred embodiment of this utility model, the lower end of the shell is engaged with the mixing head.

[0012] As a preferred technical solution of this utility model, the housing is provided with a groove for inserting the syringe handle.

[0013] As a preferred embodiment of this utility model, it further includes a locking plate, and the locking plate is used to engage the end of the syringe plunger in a locking cavity.

[0014] As a preferred embodiment of this utility model, the end of the sealing connector is provided with a sealing bevel, and the injection end of the syringe is provided with a mating bevel that cooperates with the sealing bevel.

[0015] The beneficial effects of this utility model are:

[0016] This type of double-elastic snap-fit ​​arm connects the mixing head and the fixing module of the mixing device using a double-elastic snap-fit ​​arm structure. The fixing post on the fixing module contacts the guide groove of the mixing head module. Under the action of the upper end face of the fixing post, the guide groove of the second elastic snap-fit ​​arm decomposes the forward force along the angle of the guide groove into a deformation force in the Z direction and a resistance force in the Y direction. At the same time, due to the reaction force of the guide groove on the fixing post of the fixing module, the vertical force in the Z direction at the force boundary causes the first elastic snap-fit ​​arm on the fixing module to deform, and the position of the fixing post moves downward in the Z direction. Since the snap-fit ​​arms of the fixing module and the mixing head deform in opposite directions, they can be easily inserted, allowing space for the mixing head to move forward. The mixing head continues to be inserted and assembled along the Y-axis. The second elastic locking arm of the mixing head continues to deform and tilt upwards, while the mixing head continues to deform and tilt downwards until the fixing post of the fixing module contacts the guide groove. Under the action of the upper end face of the fixing post, the guide groove of the second elastic locking arm slides into the locking hole and locks it in place. This completes the entire assembly deformation process. After assembly, the cylindrical fixing post is inserted into the circular hole of the locking hole. This structure provides an effective locking effect. Unless there is an external force in the Z-direction, the mixing head will not fall off the fixing module. This structural design effectively prevents the mixing head from detaching and falling off under injection pressure, thus preventing the mixing head from failing. This design of double elastic locking arms connecting double locking allows for easy insertion into the mixing head module without the user needing to judge whether it is installed correctly. Simply pressing it down slightly ensures that the mixing head is installed in place, making it a blind-installation design. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the structure of a mixing device with a double elastic snap-fit ​​arm connection according to this utility model;

[0019] Figure 2 This is a partial structural diagram of a mixing device with a double elastic snap-fit ​​arm connection according to this utility model;

[0020] Figure 3 This is a schematic diagram of the mixing head of a mixing device with a double elastic snap-fit ​​arm connection according to this utility model;

[0021] Figure 4 This is a schematic diagram of the sealing and connecting pipe of a mixing device with a double elastic snap-fit ​​arm connection according to this utility model;

[0022] Figure 5 This is a schematic diagram of the fit between the fixing post and the locking hole of a mixing device with a double elastic buckle arm connection according to this utility model.

[0023] In the diagram: 1. Mixing head; 2. Fixing module; 3. Housing; 4. Positioning groove; 5. Sealing connector; 6. First elastic snap-fit ​​arm; 7. Fixing post; 8. Second elastic snap-fit ​​arm; 9. Clip hole; 10. Guide groove; 11. First elastic arm; 12. Second elastic arm; 13. Locking plate; 14. Sealing slope; 15. Syringe. Detailed Implementation

[0024] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0025] Example: Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, this utility model discloses a drug mixer with a double elastic snap-fit ​​arm connection, including a drug mixing head 1 and a fixing module 2. The fixing module 2 includes a housing 3, and the housing is provided with a plurality of positioning grooves 4 for fixing a syringe 15. The drug mixing head 1 and the fixing module 2 are connected by a double elastic snap-fit ​​arm structure, so that the drug delivery end of the syringe 15 is inserted into the sealing connector 5 in the drug mixing head 1.

[0026] The dual elastic latching arm structure includes a first elastic latching arm 6 disposed on the housing 3, and a fixing post 7 provided at the front end of the first elastic latching arm 6. The mixing head 1 is provided with a second elastic latching arm 8 that cooperates with the first elastic latching arm 6, and the second elastic latching arm 8 is provided with a locking hole 9 for the fixing post 7 to be engaged.

[0027] The top of the second elastic latching arm 8 is provided with a downwardly inclined guide groove 10. The mixing head 1 and the fixing module 2 are connected by a double elastic latching arm structure. The fixing post 7 on the fixing module 2 contacts the guide groove 10 of the mixing head 1 module. Under the action of the upper end face of the fixing post 7, the guide groove 10 of the second elastic latching arm 8 decomposes the forward force along the angle of the guide groove 10 into a deformation force in the Z direction and a resistance force in the Y direction. At the same time, due to the reaction force of the guide groove 10 on the fixing post 7 of the fixing module 2, the vertical force in the Z direction at the force boundary causes the first elastic latching arm 6 on the fixing module 2 to deform, and the position of the fixing post 7 moves downward in the Z direction. Since the two latching arms of the fixing module 2 and the mixing head 1 deform in opposite directions, they can be easily inserted to make room for the mixing head 1 to move forward. The mixing head 1 continues to be inserted and assembled along the Y-axis. The second elastic latching arm 8 of the mixing head 1 continues to deform and tilt upwards, and the mixing head 1 continues to deform and tilt downwards until the fixing post 7 of the fixing module 2 contacts the guide groove 10. Under the action of the upper end face of the fixing post 7, the guide groove 10 of the second elastic latching arm 8 slides into the locking hole 9 and locks it. This completes the assembly deformation process. After assembly, the cylindrical fixing post 7 is inserted into the round hole of the locking hole 9. This structure plays an effective locking role. Unless there is an external force in the Z direction, the mixing head 1 will not fall off the fixing module 2. This structural design effectively prevents the mixing head 1 from falling off under injection pressure, which would cause the mixing head 1 to fail. This design of double elastic latching arms connecting double latches allows the mixing head 1 module to be connected at will. The user does not need to judge whether it is installed correctly. Just press it down with a little force to ensure that the mixing head 1 can be installed in place. It is a design scheme that can be blindly installed.

[0028] The first elastic buckle arm 6 includes a first elastic arm 11 disposed on the housing 3 and inclined downward, and a second elastic arm 12 disposed vertically downward at the outer end of the first elastic arm 11. The fixing post 7 is installed at the front end of the second elastic arm 12. This makes the first elastic buckle arm 6 prone to deformation, thus reducing the installation strength.

[0029] The lower end of the housing 3 is snapped into the mixing head 1, which facilitates docking between the lower end of the housing 3 and the mixing head 1.

[0030] The housing 3 is provided with a slot for the syringe 15 to be inserted into, which serves to position the syringe.

[0031] It also includes a locking plate 13, which has a locking cavity into which the end of the syringe plunger 15 is engaged, so that multiple syringes can be advanced synchronously.

[0032] The sealing connector 5 has a sealing bevel 14 at one end, and the syringe 15 has a mating bevel that cooperates with the sealing bevel. Thus, the sealing bevel 14 and the mating bevel together provide a good seal.

[0033] During operation, this type of mixing device with double elastic snap-fit ​​arms connects the mixing head 1 and the fixing module 2 via a double elastic snap-fit ​​arm structure. The fixing post 7 on the fixing module 2 contacts the guide groove 10 of the mixing head 1 module. Under the action of the upper end face of the fixing post 7, the guide groove 10 of the second elastic snap-fit ​​arm 8 decomposes the forward force along the angle of the guide groove 10 into a deformation force in the Z direction and a resistance force in the Y direction. At the same time, due to the reaction force of the guide groove 10 on the fixing post 7 of the fixing module 2, the vertical force in the Z direction at the force boundary causes the first elastic snap-fit ​​arm 6 on the fixing module 2 to deform, and the position of the fixing post 7 moves downward in the Z direction. Since the snap-fit ​​arms of the fixing module 2 and the mixing head 1 deform in opposite directions, they can be easily inserted, allowing space for the mixing head 1 to move forward. The mixing head 1 continues to be inserted and assembled along the Y-axis. The second elastic latching arm 8 of the mixing head 1 continues to deform and tilt upwards, and the mixing head 1 continues to deform and tilt downwards until the fixing post 7 of the fixing module 2 contacts the guide groove 10. Under the action of the upper end face of the fixing post 7, the guide groove 10 of the second elastic latching arm 8 slides into the locking hole 9 and locks it. This completes the assembly deformation process. After assembly, the cylindrical fixing post 7 is inserted into the round hole of the locking hole 9. This structure plays an effective locking role. Unless there is an external force in the Z direction, the mixing head 1 will not fall off the fixing module 2. This structural design effectively prevents the mixing head 1 from falling off under injection pressure, which would cause the mixing head 1 to fail. This design of double elastic latching arms connecting double latches allows the mixing head 1 module to be connected at will. The user does not need to judge whether it is installed correctly. Just press it down with a little force to ensure that the mixing head 1 can be installed in place. It is a design scheme that can be blindly installed.

[0034] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A mixing device with a double elastic snap-fit ​​arm connection, comprising a mixing head (1) and a fixing module (2), wherein the fixing module (2) comprises a housing (3), and the housing is provided with a plurality of positioning grooves (4) for fixing a syringe (15), characterized in that: The mixing head (1) and the fixing module (2) are connected by a double elastic snap-fit ​​arm structure, so that the drug delivery end of the syringe (15) is inserted into the sealing connector (5) in the mixing head (1); The dual elastic snap-fit ​​arm structure includes a first elastic snap-fit ​​arm (6) disposed on the housing (3), and a fixing post (7) is provided at the front end of the first elastic snap-fit ​​arm (6). The mixing head (1) is provided with a second elastic snap-fit ​​arm (8) that cooperates with the first elastic snap-fit ​​arm (6), and the second elastic snap-fit ​​arm (8) is provided with a snap-fit ​​hole (9) for the fixing post (7) to be snapped into. The top of the second elastic buckle arm (8) is provided with a downwardly inclined guide groove (10).

2. A mixing device with a double elastic snap-fit ​​arm connection according to claim 1, characterized in that, The first elastic buckle arm (6) includes a first elastic arm (11) disposed on the housing (3) and inclined downward, and a second elastic arm (12) disposed vertically downward at the outer end of the first elastic arm (11), and the fixing post (7) is installed at the front end of the second elastic arm (12).

3. A mixing device with a double elastic snap-fit ​​arm connection according to claim 1, characterized in that, The lower end of the housing (3) is engaged with the mixing head (1).

4. A mixing device with a double elastic snap-fit ​​arm connection according to claim 1, characterized in that, The housing (3) is provided with a slot for inserting the syringe (15) handle.

5. A mixing device with a double elastic snap-fit ​​arm connection according to claim 1, characterized in that, It also includes a locking plate (13), and the locking plate (13) is a locking cavity into which the end of the syringe (15) plunger is engaged.

6. A mixing device with a double elastic snap-fit ​​arm connection according to claim 1, characterized in that, The sealing connector (5) has a sealing bevel (14) at its end, and the syringe (15) has a mating bevel that cooperates with the sealing bevel at its inlet end.

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