Puncture lock catch connector and glue-free and chemical-solvent-free infusion assembly

Abstract

The utility model relates to the technical field of medical instruments, in particular to a puncture lock catch connector and a glue-free and chemical-solvent-free infusion assembly, the puncture lock catch connector is provided with conical puncture heads which are integrally formed from top to bottom and sequentially arranged, and the conical puncture heads are provided with inclined puncture holes; the limiting plate is provided with a puncture end and a holding end which are oppositely arranged, and the conical puncture head is vertically arranged on the puncture end; the limiting plate is used for limiting the displacement of the conical puncture head; the holding part is provided with a square main body, and one end of the square main body is perpendicular to the limiting plate; one end of the connecting pipe is fixedly arranged with the other end of the square main body; the other end of the connecting pipe is provided with a liquid outlet hole, and the liquid outlet hole is communicated with the inclined puncture hole, so that compared with an existing cylindrical holding structure, the holding friction force is increased, the sliding problem caused by hand sweating or improper hand posture of medical staff is avoided, and it is ensured that the operation process is more stable and safer.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a puncture lock connector and an infusion assembly without glue or chemical solvents. Background Art

[0002] Currently, the main body of a puncture device in an infusion line assembly is usually equipped with a puncture head and a gripping portion.

[0003] However, the handle of existing trocars is mostly cylindrical, which makes it difficult for medical staff to hold the trocar in an unstable position and prone to slipping. Once the grip is unstable, the puncture tip may accidentally pierce the skin, posing a safety hazard to medical staff when using the trocar.

[0004] Therefore, the existing technology has defects and deficiencies and needs further improvement and development. Utility Model Content

[0005] In view of the above-mentioned deficiencies in the prior art, the purpose of this application is to provide a puncture lock connector and an infusion assembly without glue or chemical solvents, aiming to solve the problem that the puncture device in the prior art is easy to hold unstable, posing a safety hazard to medical staff.

[0006] A technical solution adopted by the present application to solve the technical problem is as follows: a puncture lock connector for patient infusion, the puncture lock connector having the following components integrally formed from top to bottom and arranged in sequence:

[0007] A conical puncture head, wherein the conical puncture head has an oblique puncture hole;

[0008] A limit plate, the limit plate having a puncture end and a gripping end that are arranged opposite to each other, the conical puncture head being vertically arranged on the puncture end; the limit plate is used to limit the displacement of the conical puncture head;

[0009] A gripping portion, the gripping portion having a square body, one end of which is perpendicularly disposed to the limiting plate;

[0010] A connecting tube, one end of which is fixedly arranged with the other end of the square main body; the other end of the connecting tube is provided with a liquid outlet, and the liquid outlet is communicated with the oblique puncture hole.

[0011] Optionally, the square body has a first end face and a second end face that are opposite to each other, the first end face is provided with a first gripping wing plate and a second gripping wing plate at a corner thereof, and the second end face is provided with a third gripping wing plate and a fourth gripping wing plate at a corner thereof;

[0012] Wherein, the first holding wing plate, the second holding wing plate, the third holding wing plate and the fourth holding wing plate are all arranged perpendicular to the limiting plate.

[0013] Optionally, a first U-shaped groove is formed between the first holding wing plate and the second holding wing plate, a second U-shaped groove is formed between the third holding wing plate and the fourth holding wing plate, a third U-shaped groove is formed between the first holding wing plate and the third holding wing plate, and a fourth U-shaped groove is formed between the second holding wing plate and the fourth holding wing plate.

[0014] Optionally, an air inlet pipe is provided in the third U-shaped groove, and the air inlet pipe is communicatively connected to the liquid outlet hole and the oblique puncture hole.

[0015] Optionally, a plurality of reinforcing members are provided in both the third U-shaped groove and the fourth U-shaped groove.

[0016] Optionally, the plurality of reinforcing members can be configured as cylinders, rib plates or spacer plates.

[0017] Another technical solution adopted by the present application to solve the technical problem is as follows: An infusion assembly without glue and chemical solvents, comprising:

[0018] The puncture locking joint as described above, the connecting pipe includes a connecting pipe body, a buckle plate and an inverted fastener, the buckle plate is annularly arranged on one side of the connecting pipe body close to the holding portion, and the inverted fastener is annularly arranged at the end of the connecting pipe body facing away from the holding portion;

[0019] An infusion tube, the infusion tube is detachably connected to the puncture locking joint;

[0020] A locking fastener, the locking fastener is provided with a passing hole, the passing hole is arranged at one end of the locking fastener facing away from the connecting pipe, and the passing hole is used for the infusion tube to pass through;

[0021] The locking fastener is used to fix the infusion tube on the puncture locking joint.

[0022] Optionally, the locking fastener is configured as a screw-on joint, and a plurality of screw-on protrusions are arranged on the inner wall of the screw-on joint facing the connecting pipe;

[0023] A plurality of locking protrusions corresponding to the plurality of screw-on protrusions one by one are arranged on the buckle plate, a screw-on opening is provided in each of the plurality of locking protrusions, and the size of the screw-on opening is adapted to the screw-on protrusion; a loosening prevention protrusion is provided at the entrance of the screw-on opening, and the loosening prevention protrusion is used to prevent the screw-on protrusion stuck in the screw-on opening from loosening;

[0024] Wherein, the infusion tube passes through the passing hole, the infusion tube is sleeved on the connecting pipe body, the screw-on protrusions abut against the buckle plate, and the screw-on joint is rotated to screw all the screw-on protrusions into the screw-on openings.

[0025] Optionally, the locking member is configured as an inverted joint, and the inverted joint includes a plurality of extrusion members, and the plurality of extrusion members are fixedly arranged on one end of the inverted joint away from the through hole; the extrusion members each include a deformation portion and a snap portion.

[0026] Optionally, the buckle portion is integrally formed with an abutting section, a side support section and a locking section;

[0027] The infusion tube passes through the outlet hole, and the infusion tube is sleeved in the connecting tube body, so that the inverted joint is displaced toward the puncture lock joint, the abutting section abuts against the buckle plate, and the deformable portion is stretched outward, driving the deformable portion to bend, and the side supporting section abuts against the side wall of the buckle plate, thereby locking the locking section in the buckle plate.

[0028] Compared with the prior art, the present application provides a puncture locking connector and an infusion assembly without glue or chemical solvents. The puncture locking connector has a square main body through the gripping part, and one end of the square main body is arranged perpendicular to the limiting plate; one end of the connecting tube is fixed to the other end of the square main body, thereby increasing the friction during gripping compared with the existing cylindrical gripping structure, avoiding slipping problems caused by sweating hands or improper hand posture of medical staff, and ensuring more stability and safety during operation; the other end of the connecting tube is provided with a liquid outlet, and the liquid outlet is connected to the oblique puncture hole, thereby making the liquid flow smoother, improving the infusion efficiency, reducing gas retention and blockage problems, and further ensuring smooth infusion. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the three-dimensional structure of the puncture lock connector provided in this application;

[0030] Figure 2 This is another schematic diagram of the three-dimensional structure of the puncture lock connector provided in this application;

[0031] Figure 3 This is another schematic diagram of the three-dimensional structure of the puncture lock connector provided in this application;

[0032] Figure 4 This is another schematic diagram of the three-dimensional structure of the puncture lock connector provided in this application;

[0033] Figure 5 This is another schematic diagram of the three-dimensional structure of the puncture lock connector provided in this application;

[0034] Figure 6 This is a schematic diagram of a three-dimensional exploded structure of the infusion component without glue or chemical solvents in this application;

[0035] Figure 7It is another three-dimensional exploded structural schematic diagram of the infusion assembly without glue and without chemical solvent in the present application;

[0036] Figure 8 It is another three-dimensional exploded structural schematic diagram of the infusion assembly without glue and without chemical solvent in the present application;

[0037] Figure 9 It is another three-dimensional exploded structural schematic diagram of the infusion assembly without glue and without chemical solvent in the present application.

[0038] Description of reference numerals:

[0039] 10. Puncture lock joint; 11. Conical puncture head; 111. Oblique puncture hole; 12. Holding part; 121. Square main body; 1211. First end face; 1212. Second end face; 1213. First holding wing plate; 1214. Second holding wing plate; 1215. Third holding wing plate; 1216. Fourth holding wing plate; 1217. First C-shaped groove; 1218. Second C-shaped groove; 1219. Third C-shaped groove; 1220. Fourth C-shaped groove; 1221. Air inlet pipe; 1222. Reinforcing member; 13. Connecting pipe; 131. Liquid outlet hole; 132. Connecting pipe body; 133. Buckling plate; 1331. Locking protrusion; 1332. Screw-on opening; 1333. Anti-loosening protrusion; 134. Reverse buckle; 14. Limiting plate; 141. Puncture end; 142. Holding end; 20. Infusion assembly without glue and without chemical solvent; 21. Infusion tube; 22. Locking member; 221. Screw-on joint; 2211. Screw-on protrusion; 222.穿出孔; 23. Reverse buckle joint; 2321. Squeezing member; 2322. Deformation part; 2323. Buckling part; 2324. Abutting section; 2326. Side support section; 2327. Locking section. Detailed implementation manners

[0040] The embodiments of the present application are described in detail below. Examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application and should not be construed as a limitation to the present application.

[0041] It should be noted that there is an unclear "穿出孔" in the original text which may need further clarification in the source language. I translated it as "穿出孔" for the sake of integrity. If there is a more accurate term, it can be adjusted accordingly.In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, "multiple" means two or more.

[0042] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0043] Please refer to Figure 1 The first embodiment of the present application provides a puncture lock connector 10 for patient infusion. First, the tapered shape of the puncture tip enables it to be inserted into a drug bag or medicine bottle, forming a stable infusion channel. The oblique puncture hole 111 provided on the puncture tip ensures that liquid can flow quickly into the infusion line, reducing the possibility of blockage. Second, the grip portion 12 adopts a square body 121 structure, providing a better grip. Medical personnel use the grip portion 12 to control the angle and depth of the puncture lock connector, ensuring stability during the puncture process and reducing the operational risks caused by unstable grip. Finally, one end of the connecting tube 13 is connected to the puncture tip, and the other end is connected to the infusion tube 21 through the liquid outlet 131. Once the tapered puncture tip 11 is inserted into the drug bag, liquid can flow smoothly into the infusion tube 21, ensuring the continuity and efficiency of the infusion process. In addition, the provision of the locking member 22 ensures the secure connection of the infusion tube 21 during operation, effectively preventing liquid leakage, and improving the overall safety and reliability of use.

[0044] Please refer to Figures 2 to 5In some embodiments, the puncture lock connector 10 has a conical puncture head 11, a limiting plate 14, a gripping portion 12, and a connecting tube 13 integrally formed from top to bottom and arranged in sequence; the conical puncture head 11 has an oblique puncture hole 111, thereby making the liquid flow path smoother and reducing the possibility of blockage or liquid reflux; the limiting plate 14 has a puncture end 141 and a gripping end 142 arranged opposite to each other, and the conical puncture head 11 is vertically arranged on the puncture end 141; the limiting plate 14 is used to limit the displacement of the conical puncture head 11, thereby effectively limiting the excessive displacement of the conical puncture head 11, preventing the puncture from being too deep or falling out, thereby improving the safety and accuracy of the operation; The gripping portion 12 has a square main body 121, one end of which is perpendicular to the limiting plate 14; one end of the connecting tube 13 is fixed to the other end of the square main body 121, thereby increasing the friction during gripping compared to the existing cylindrical gripping structure, avoiding slipping problems caused by sweating hands or improper hand posture of medical staff, and ensuring more stability and safety during operation; the other end of the connecting tube 13 is provided with a liquid outlet 131, and the liquid outlet 131 is connected to the oblique puncture hole 111, thereby making the liquid flow smoother, improving the infusion efficiency, reducing the problems of gas retention and blockage, and further ensuring the smooth progress of infusion.

[0045] Please refer to Figures 2 to 5 In some embodiments, the square body 121 has a first end face 1211 and a second end face 1212 arranged opposite to each other, and the corners of the first end face 1211 are provided with a first gripping wing plate 1213 and a second gripping wing plate 1214, and the corners of the second end face 1212 are provided with a third gripping wing plate 1215 and a fourth gripping wing plate 1216, thereby providing additional support points for the fingers, making the grip more comfortable and stable, and reducing fatigue during long-term operation; wherein, the first gripping wing plate 1213, the second gripping wing plate 1214, the third gripping wing plate 1215 and the fourth gripping wing plate 1216 are all arranged perpendicular to the limit plate 14, thereby making the force more uniform during gripping, avoiding the risk of loss of control or local sliding of grip due to single-point force, and helping medical staff to better control the use of the puncture head.

[0046] Please refer to Figures 2 to 5, in some embodiments, a first C-shaped groove 1217 is formed between the first gripping wing plate 1213 and the second gripping wing plate 1214, a second C-shaped groove 1218 is formed between the third gripping wing plate 1215 and the fourth gripping wing plate 1216, a third C-shaped groove 1219 is formed between the first gripping wing plate 1213 and the third gripping wing plate 1215, and a fourth C-shaped groove 1220 is formed between the second gripping wing plate 1214 and the fourth gripping wing plate 1216. This not only optimizes the design of the gripping portion 12, making the gripping structure lighter, increasing the contact surface of the fingers, and improving the friction force, but also significantly reduces the possibility of slipping during operation.

[0047] Please refer to Figure 1 and Figure 2 , in some embodiments, an air inlet pipe 1221 is provided in the third C-shaped groove 1219. The air inlet pipe 1221 is connected to the liquid outlet hole 131 and the beveled puncture hole 111, so as to effectively discharge the gas in the pipeline, prevent air bubbles from appearing during the infusion process, ensure the continuity and stability of the liquid flow, and avoid problems such as unsmooth or delayed infusion caused by gas obstruction.

[0048] In some embodiments, a waterproof and breathable membrane is provided in the air inlet pipe 1221, so that the air in the air inlet pipe 1221 can flow through the air inlet holes in the air inlet pipe 1221 and the waterproof and breathable membrane, preventing the liquid from flowing out of the air inlet pipe 1221. Furthermore, it maintains the air pressure balance during the liquid extraction or infusion process, ensures the continuity and stability of the liquid flow, and avoids problems such as unsmooth or delayed infusion caused by gas obstruction.

[0049] Please refer to Figures 2 to 5 , in some embodiments, a number of reinforcing members 1222 are provided in both the third C-shaped groove 1219 and the fourth C-shaped groove 1220, providing a strengthened support structure, making the C-shaped groove show better stability when承受压力, preventing the groove opening from cracking or deforming due to excessive force, and ensuring the reliability of the puncture operation.

[0050] Please refer to Figure 4 , in some embodiments, a number of the reinforcing members 1222 can be set as cylindrical shapes, rib plates or spacer plates, so that the structure of the reinforcing members 1222 can be adjusted according to requirements, further optimizing the structural strength and compressive performance of the puncture locking joint 10, and ensuring the reliability of the puncture operation of the puncture locking joint 10.

[0051] Please refer to Figure 4 and Figure 6, the second embodiment of the present application provides an infusion assembly 20 without glue and chemical solvents, the infusion assembly 20 without glue and chemical solvents includes the puncture lock connector 10, the infusion tube 21 and the locking piece 22 as described above, the connecting tube 13 includes a connecting tube body 132, a buckle plate 133 and a buckle 134, the buckle plate 133 is arranged on the side of the connecting tube body 132 close to the gripping portion 12, and the buckle 134 is arranged on the end of the connecting tube body 132 away from the gripping portion 12; the infusion tube 21 is detachably connected to the puncture lock connector 10; the locking piece 22 is provided with a through hole 222, and the through hole 222 is arranged on the The locking piece 22 is away from one end of the connecting tube 13, and the outlet hole 222 is used for the infusion tube 21 to pass through; the locking piece 22 is used to fix the infusion tube 21 on the puncture locking connector 10, thereby greatly improving the airtightness and connection quality between the puncture locking connector 10 and the infusion tube 21, avoiding the loosening problem that may be caused by traditional glue connection, abandoning the process of using glue for curing, eliminating the safety risks caused by the volatilization of volatile organic substances, ensuring the safety of patients, and requiring no air drying and curing time, shortening the manufacturing time and cost of the glue-free and chemical solvent-free infusion component, and improving the production capacity of the glue-free and chemical solvent-free infusion component.

[0052] Please refer to Figure 7 In some embodiments, the locking member 22 is configured as a screw-on joint 221, and the screw-on joint 221 is provided with a plurality of screw-on protrusions 2211 on the inner wall facing the connecting tube 13; the buckle plate 133 is provided with a plurality of locking protrusions 1331 corresponding to the plurality of screw-on protrusions 2211, and the plurality of locking protrusions 1331 are all provided with screw-on openings 1332, and the size of the screw-on openings 1332 is adapted to the screw-on protrusions 2211, thereby achieving a firm connection between the screw-on protrusions 2211 and the screw-on openings 1332 on the buckle plate 133, thereby avoiding leakage or falling off caused by loose connection of the infusion tube 21 during infusion, and ensuring the continuity and stability of infusion. The entrance of the screw opening 1332 is provided with an anti-loosening protrusion 1333, and the anti-loosening protrusion 1333 is used to prevent the screw protrusion 2211 stuck in the screw opening 1332 from loosening; wherein, the infusion tube 21 passes through the through-hole 222, and the infusion tube 21 is sleeved in the connecting tube body 132, and the screw protrusion 2211 abuts against the buckle plate 133, and the screw joint 221 is rotated to screw several of the screw protrusions 2211 into the screw opening 1332, thereby preventing the screw protrusion 2211 from loosening due to twisting or pulling of the infusion tube 21 during a long time of infusion, thereby improving the overall safety of use.

[0053] Please refer to Figure 8 In some embodiments, the locking member 22 is configured as an inverted joint 23, and the inverted joint 23 includes a plurality of extrusion members 2321, and the plurality of extrusion members 2321 are fixedly arranged on one end of the inverted joint 23 away from the through hole 222; the extrusion members 2321 each include a deformation portion 2322 and a snap portion 2323, so that the inverted joint 23 can be quickly assembled during the assembly process, while greatly improving the firmness and reliability of the connection.

[0054] Please refer to Figure 8 The locking section 2327 is locked in the buckle plate 133 by the side supporting section 2326 and the locking section 2327. The locking section 2327 is locked in the buckle plate 133 by the side supporting section 2326 and the locking section 2327. The locking section 2324, the side supporting section 2326 and the locking section 2327 can ensure that the connection between the infusion tube 21 and the puncture lock connector 10 is stable and not loose, thereby further avoiding the risk of liquid leakage or device falling off during the infusion process.

[0055] Please refer to Figure 9 In some embodiments, the infusion tube 21 can be directly inserted into the buckle 134, and then the infusion tube 21 can be sleeved into the connecting tube body 132 to achieve an interference fit between the infusion tube 21 and the connecting tube 13 body, thereby ensuring that the connection between the infusion tube 21 and the puncture lock connector 10 is firm and not loose, further avoiding the risk of liquid leakage or equipment falling off during the infusion process.

[0056] In summary, the present application provides a puncture lock connector and an infusion assembly without glue and chemical solvents, wherein the puncture lock connector has a conical puncture head integrally formed and arranged in sequence from top to bottom, and the conical puncture head has an oblique puncture hole; a limiting plate, the limiting plate has a puncture end and a gripping end relatively arranged, and the conical puncture head is vertically arranged on the puncture end; the limiting plate is used to limit the displacement of the conical puncture head; the gripping part, the gripping part has a square main body, one end of the square main body is perpendicularly arranged to the limiting plate; a connecting tube, one end of the connecting tube is connected to the square The other end of the cylindrical main body is fixedly arranged; the other end of the connecting tube is provided with a liquid outlet hole, and the liquid outlet hole is connected to the oblique puncture hole, thereby increasing the friction during gripping compared with the existing cylindrical gripping structure, avoiding the medical staff from slipping due to sweating hands or improper hand posture, and ensuring more stable and safer operation; the other end of the connecting tube is provided with a liquid outlet hole, and the liquid outlet hole is connected to the oblique puncture hole, thereby making the liquid flow smoother, improving the infusion efficiency, reducing the problems of gas retention and infusion tube blockage, and further ensuring the smooth progress of infusion.

[0057] It should be understood that the application of this application is not limited to the above examples. For ordinary technicians in this field, they can make improvements or changes based on the above description. All these improvements and changes should fall within the scope of protection of the claims attached to this application.

Claims

1. A puncture lock connector for patient infusion, characterized in that: The puncture locking joint has the following components integrally formed from top to bottom in sequence: A conical puncture head, which has an inclined puncture hole; A limiting plate, which has a puncture end and a holding end arranged oppositely, and the conical puncture head is vertically arranged on the puncture end; the limiting plate is used to limit the displacement of the conical puncture head; A holding part, which has a square main body, and one end of the square main body is vertically arranged with the limiting plate; A connecting pipe, one end of which is fixedly arranged with the other end of the square main body; the other end of the connecting pipe is provided with a liquid outlet hole, and the liquid outlet hole is communicated with the inclined puncture hole; 2. The puncture lock connector according to claim 1, characterized in that: The square main body has a first end face and a second end face arranged oppositely, and a first holding wing plate and a second holding wing plate are arranged at the corners of the first end face, and a third holding wing plate and a fourth holding wing plate are arranged at the corners of the second end face; Among them, the first holding wing plate, the second holding wing plate, the third holding wing plate and the fourth holding wing plate are all vertically arranged with the limiting plate; 3. The puncture lock connector according to claim 2, characterized in that: A first U-shaped groove is formed between the first holding wing plate and the second holding wing plate, a second U-shaped groove is formed between the third holding wing plate and the fourth holding wing plate, a third U-shaped groove is formed between the first holding wing plate and the third holding wing plate, and a fourth U-shaped groove is formed between the second holding wing plate and the fourth holding wing plate; 4. The puncture lock connector according to claim 3, characterized in that: An air inlet pipe is arranged in the third U-shaped groove, and the air inlet pipe is communicated with the liquid outlet hole and the inclined puncture hole; 5. The puncture lock connector according to claim 3, characterized in that: A number of reinforcing members are arranged in both the third U-shaped groove and the fourth U-shaped groove; 6. The puncture lock connector according to claim 5, characterized in that: The number of the reinforcing members can be set as a cylinder, a rib plate or a spacer plate; 7. A glue-free and chemical solvent-free infusion assembly, characterized in that: The glue-free and chemical-solvent-free infusion assembly includes: The puncture locking joint according to any one of claims 1-6, the connecting pipe includes a connecting pipe body, a buckling plate and an inverted fastener, the buckling plate is arranged around one side of the connecting pipe body close to the holding part in a ring shape, and the inverted fastener is arranged around the end of the connecting pipe body away from the holding part in a ring shape; An infusion tube, which is detachably connected with the puncture locking joint; A locking fastener, which is provided with a passing hole, and the passing hole is arranged at one end of the locking fastener away from the connecting pipe, and the passing hole is used for the infusion tube to pass through; The locking fastener is used to fix the infusion tube on the puncture locking joint; 8. The glue-free and chemical solvent-free infusion assembly according to claim 7, characterized in that: The locking fastener is set as a screw-on joint, and a number of screw-on protrusions are arranged on the inner wall of the screw-on joint facing the connecting pipe; A number of locking protrusions corresponding to the number of the screw-on protrusions one by one are arranged on the buckling plate, and a screw-on opening is formed in each of the number of locking protrusions, and the size of the screw-on opening is adapted to the screw-on protrusion; a loosening prevention protrusion is arranged at the entrance of the screw-on opening, and the loosening prevention protrusion is used to prevent the screw-on protrusion stuck in the screw-on opening from loosening; Among them, the infusion tube passes through the passing hole, the infusion tube is sleeved in the connecting pipe body, the screw-on protrusion abuts against the buckling plate, and the screw-on joint is rotated to screw all the screw-on protrusions into the screw-on openings.

9. The glue-free and chemical solvent-free infusion assembly according to claim 7, characterized in that: The locking member is configured as an inverted joint, and the inverted joint includes a plurality of extrusion members, which are all fixedly arranged on one end of the inverted joint away from the through hole; the extrusion members each include a deformation portion and a snap portion.

10. The glue-free and chemical solvent-free infusion assembly according to claim 9, characterized in that: The buckle portion is integrally formed with an abutment section, a side support section and a locking section; The infusion tube passes through the outlet hole, and the infusion tube is sleeved in the connecting tube body, so that the inverted joint is displaced toward the puncture lock joint, the abutting section abuts against the buckle plate, and the deformable portion is stretched outward, driving the deformable portion to bend, and the side supporting section abuts against the side wall of the buckle plate, thereby locking the locking section in the buckle plate.

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