Cover closing mechanism for plastic needle venting plug of infusion apparatus
By designing a vent plug capping mechanism for infusion set plastic needles, a cylinder-driven structure is used to rotate and align the vent plug vertically, solving the problem of inaccurate vent plug capping and achieving a highly efficient capping effect.
Patent Information
- Application Number
- CN202423220063.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2034-12-26
AI Technical Summary
In the prior art, the vent plug is connected to one side of the plastic needle, and it cannot be pressed vertically downwards to align with the notch of the plastic needle, resulting in inaccurate vent plug fitting.
An infusion set plastic needle vent plug closing mechanism is adopted. The mechanism uses a cylinder to drive a lifting plate and a protruding plate to rotate the vent plug around the plastic needle and align it with the notch. Then, it moves vertically downward to close the vent plug on the plastic needle.
This achieves efficient sealing of the vent plug, ensuring it accurately covers the plastic needle and improving sealing efficiency.
Smart Images

Figure CN223801932U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to infusion apparatus technical field especially relates to a kind of infusion apparatus plastic needle exhaust plug combined cover mechanism. BACKGROUND
[0002] Disposable infusion apparatus is generally connected by intravenous needle or injection needle, needle cap, infusion hose, liquid medicine filter, flow rate regulator, drip bottle, bottle plug puncture device, plastic needle, air filter and other components, plastic needle is installed before infusion hose, and it needs to be covered by combined cover mechanism.
[0003] However, the combined cover mechanism in the prior art cannot vertically press the exhaust plug to cover it on the plastic needle, because the exhaust plug is connected to one side of the plastic needle, and the exhaust plug cannot be aligned with the gap of the plastic needle. Therefore, it is necessary to provide a combined cover mechanism for the exhaust plug of the plastic needle of the infusion apparatus. SUMMARY
[0004] The utility model discloses a kind of combined cover mechanisms for the exhaust plug of the plastic needle of the infusion apparatus, to solve the problem that the exhaust plug is connected to one side of the plastic needle in the prior art, and the exhaust plug cannot be aligned with the gap of the plastic needle. Therefore, it is necessary to provide a combined cover mechanism for the exhaust plug of the plastic needle of the infusion apparatus.
[0005] To achieve the above object, the utility model adopts the following technical scheme: a kind of combined cover mechanism for the exhaust plug of the plastic needle of the infusion apparatus, including horizontal plate and its surface fixed two vertical plates, the top of two vertical plates is fixed with top plate, two linear bearings are fixed in top plate, the middle of linear bearing is movably penetrated with lifting rod, the top of two lifting rods is fixed with horizontal rod, the bottom of two lifting rods is fixed with lifting plate, second cylinder is fixed in lifting plate, second cylinder is fixed in lifting plate, two vertical bearings are fixed in lifting plate, the middle of vertical bearing is movably penetrated with sliding rod, the top of two sliding rods is fixed with sleeve joint rod, the bottom of two vertical bearings is fixed with mounting plate, the surface of mounting plate is fixed with side shift cylinder, the bottom of side shift cylinder is slidably provided with sliding block, the bottom of sliding block is fixed with side shift plate, the bottom of side shift plate is fixed with convex plate, the side of horizontal plate is fixed with extension plate, the top of extension plate is fixed with third cylinder, and the top of third cylinder is fixed with positioning frame.
[0006] Further preferably, the bottom of the side shift cylinder is fixed with a sliding rod, and the bottom of the sliding rod is slidably provided with a sliding block. The extension plate is located below the vertical bearing.
[0007] Further preferably, the top opening of the positioning frame is provided with a plurality of notches, the notches of the top of the positioning frame are matched with the plastic needle, and the side of the convex plate is integrally formed with a plurality of protrusions for pressing the exhaust plug.
[0008] Further preferably, the sliding rod and the vertical bearing are kept parallel, the linear bearing and the lifting rod are kept parallel, and the linear bearing and the vertical bearing are kept parallel.
[0009] The beneficial effects of the utility model are that the first cylinder drives the lifting plate and the convex plate and the like structure to move downwards, the convex plate moves downwards and approaches the exhaust plug in a large range, the side shift cylinder drives the sliding block and the convex plate and the like structure to move rightwards, the exhaust plug rotates around the plastic needle as the center, the exhaust plug is aligned with the notch of the plastic needle, then the second cylinder drives the mounting plate and the convex plate to move vertically downwards, the exhaust plug is completely covered on the plastic needle, the exhaust plug can be accurately covered on the plastic needle, and the utility model has the advantages of high exhaust plug covering efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0010] Figure 1 It is the whole structure schematic view of the utility model;
[0011] Figure 2 It is the structure schematic view of the lifting plate of the utility model;
[0012] Figure 3 It is the structure schematic view of the side shift plate of the utility model;
[0013] Figure 4 It is the structure schematic view of the plastic needle of the utility model.
[0014] In the drawing: vertical plate 1, horizontal plate 2, top plate 3, linear bearing 4, lifting rod 5, transverse rod 6, first cylinder 7, lifting plate 8, vertical bearing 9, second cylinder 10, mounting plate 11, sleeve joint rod 12, side shift cylinder 13, sliding block 14, side shift plate 15, convex plate 16, extension plate 17, third cylinder 18, positioning frame 19, sliding rod 20. DETAILED DESCRIPTION
[0015] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.
[0016] REFERENCE Figures 1 to 4The utility model discloses a kind of infusion apparatus plastic needle exhaust plug cover mechanisms, including horizontal plate 2 and its surface fixed two vertical plates 1, the top of two vertical plates 1 is fixed with top plate 3, two linear bearings 4 are fixed in top plate 3, lifting rod 5 is movably penetrated in the middle of linear bearing 4, the top of two lifting rods 5 is fixed with transverse rod 6, the bottom of two lifting rods 5 is fixed with lifting plate 8, second cylinder 10 is fixed in lifting plate 8, second cylinder 10 is fixed in lifting plate 8, two vertical bearings 9 are fixed in lifting plate 8, sliding rod 20 is movably penetrated in the middle of vertical bearing 9, two sliding rods 20 are fixed with sleeve joint rod 12 in the top, the bottom of vertical bearing 9 is fixed with mounting plate 11, the surface of mounting plate 11 is fixed with side shift cylinder 13, sliding block 14 is slidably arranged in the bottom of side shift cylinder 13, side shift plate 15 is fixed in the bottom of sliding block 14, protruding plate 16 is fixed in the bottom of side shift plate 15, extension plate 17 is fixed in the side of horizontal plate 2, third cylinder 18 is fixed in the top of extension plate 17, positioning frame 19 is fixed in the top of third cylinder 18.
[0017] Preferably, the bottom of side shift cylinder 13 is fixed with sliding rod, the bottom of sliding rod is slidably provided with sliding block 14, extension plate 17 is located below vertical bearing 9, a plurality of notches are provided in the top opening of positioning frame 19, the notch in the top of positioning frame 19 is matched with plastic needle A, a plurality of protrusions are integrally formed on the side of protruding plate 16 for pressing exhaust plug, sliding rod 20 and vertical bearing 9 are parallel, linear bearing 4 and lifting rod 5 are parallel, linear bearing 4 and vertical bearing 9 are parallel.
[0018] Specific implementation, first cylinder 7 drives lifting plate 8 and protruding plate 16 and other structures to move downwards, so that protruding plate 16 moves downwards to close to exhaust plug, side shift cylinder 13 drives sliding block 14 and protruding plate 16 and other structures to move rightwards, so that exhaust plug rotates around plastic needle A, and then second cylinder 10 drives mounting plate 11 and protruding plate 16 to move vertically downwards, so that exhaust plug is completely covered on plastic needle A, and exhaust plug can be accurately covered on plastic needle A.
[0019] In the utility model, in use, first, infusion apparatus production line installs plastic needle A in the notch of positioning frame 19, and then first cylinder 7 drives lifting plate 8 and protruding plate 16 and other structures to move downwards, so that protruding plate 16 moves downwards to close to exhaust plug, side shift cylinder 13 drives sliding block 14 and protruding plate 16 and other structures to move rightwards, so that exhaust plug rotates around plastic needle A, and then second cylinder 10 drives mounting plate 11 and protruding plate 16 to move vertically downwards, so that exhaust plug is completely covered on plastic needle A, and exhaust plug can be accurately covered on plastic needle A.
[0020] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.
Claims
1. A plastic needle vent plug cover mechanism for infusion set, comprising a horizontal plate (2) and two vertical plates (1) fixed on the surface of the horizontal plate, characterized in that: The top of two vertical plates (1) is fixed with a top plate (3), two linear bearings (4) are fixed in the top plate (3), the middle of the linear bearings (4) movably penetrates a lifting rod (5), the top of two lifting rods (5) is fixed with a transverse rod (6), the bottom of two lifting rods (5) is fixed with a lifting plate (8), a second air cylinder (10) is fixed in the lifting plate (8), two vertical bearings (9) are fixed in the lifting plate (8), the middle of the vertical bearings (9) movably penetrates a sliding rod (20), the top of two sliding rods (20) is fixed with a sleeving rod (12), the bottom of two vertical bearings (9) is fixed with a mounting plate (11), a side moving air cylinder (13) is fixed on the surface of the mounting plate (11), the bottom of the side moving air cylinder (13) is slidably provided with a sliding block (14), the bottom of the sliding block (14) is fixed with a side moving plate (15), the bottom of the side moving plate (15) is fixed with a convex plate (16), the side of a horizontal plate (2) is fixed with an extension plate (17), the top of the extension plate (17) is fixed with a third air cylinder (18), the top of the third air cylinder (18) is fixed with a positioning frame (19).
2. The plastic spike vent cap assembly of claim 1, wherein: The bottom of the side moving air cylinder (13) is fixed with a sliding rod, the bottom of the sliding rod is slidably provided with a sliding block (14), and the extension plate (17) is located below the vertical bearing (9).
3. The plastic spike vent cap assembly of claim 1, wherein: A plurality of notches are arranged in the top opening of the positioning frame (19), the notches in the top of the positioning frame (19) are matched with plastic needles, and a plurality of protrusions are integrally formed on the side of the convex plate (16) and used for pressing the exhaust plug.
4. The plastic spike vent cap assembly of claim 1, wherein: The sliding rod (20) and the vertical bearing (9) are parallel, the linear bearing (4) and the lifting rod (5) are parallel, and the linear bearing (4) and the vertical bearing (9) are parallel.