CN219045614U

CN219045614U - Medical connector

Info

Publication number: CN219045614U
Application number: CN202223448515.7U
Authority: CN
Inventors: 程乾伟; 钱燕枫; 张利民
Original assignee: Relief Jiuzheng Packaging Materials Shanghai Co ltd
Current assignee: Relief Jiuzheng Packaging Materials Shanghai Co ltd
Priority date: 2022-12-22
Filing date: 2022-12-22
Publication date: 2023-05-19
Anticipated expiration: 2032-12-22

Abstract

The present application relates to the field of medical instrument apparatus, and more particularly to a medical connector including a first tube assembly, a second tube assembly, and a locking assembly. This application has the effect of the convenience when promoting plug hose.

Description

Medical connector

Technical Field

The present application relates to the field of medical equipment, and in particular, to a medical connector.

Background

In the use process of medical equipment, a conveying pipe is often used for conveying gas and liquid.

The conveying pipe is divided into a hose and a hard pipe. In the connection process of the hose, a plastic joint is often adopted for connection, wedge-shaped clamping rings are integrally formed on the outer walls of the two ends of the plastic joint, when the hose is sleeved on the plastic joint, the hose is in interference fit with the wedge-shaped clamping rings on the plastic joint, and the wedge-shaped clamping rings can limit the hose, so that the inner wall of the hose is clamped on the wedge-shaped clamping rings.

However, in the actual connection process of the hose, the hose is often required to be plugged and unplugged, and the hose is made of soft materials and is difficult to bear force, so that the hose is difficult to plug and unplug.

Disclosure of Invention

In order to improve the convenience when inserting and pulling out the hose, the application provides a medical connector.

The application provides a medical connector adopts following technical scheme:

a medical connector comprising a first tube assembly, a second tube assembly, and a locking assembly; the first pipe assembly comprises a first outer pipe fitting and a first inner pipe fitting which is arranged in the first outer pipe fitting in a sliding way, the first inner pipe fitting extends out from one end of the first outer pipe fitting, and the other end of the first outer pipe fitting can be connected with a hose; the second pipe assembly comprises a second outer pipe fitting and a second inner pipe fitting which is arranged in the second outer pipe fitting in a sliding way, and the second inner pipe fitting extends out from one end of the second outer pipe fitting; the other end of the second outer pipe fitting can be connected with another hose;

one end of the first outer pipe fitting can be inserted into and clamped on the second outer pipe fitting, and the locking assembly is arranged on the second outer pipe fitting and used for controlling the locking of the first outer pipe fitting; the first inner pipe fitting can be abutted with the second inner pipe fitting, and the first outer pipe fitting and the second outer pipe fitting are communicated when the first inner pipe fitting and the second inner pipe fitting are abutted;

the locking assembly comprises a pressing spring, a pressing piece and a locking ring, wherein one end of the pressing spring is arranged on the second outer pipe fitting, the pressing piece is arranged at the other end of the pressing spring, and the locking ring is connected to the pressing piece; the locking ring penetrates through the second outer pipe fitting and can slide back and forth on the pressing of the pressing piece, and the first outer pipe fitting is clamped on the second outer pipe fitting through the locking ring.

Through adopting above-mentioned technical scheme, a hose connection is on first outer pipe fitting, and another hose connection will go up in the second outer pipe, then inserts first outer pipe fitting in locating the second outer pipe fitting, supports the pressure spring and carries out spacingly to pressing the piece this moment, and the lock ring is spacing equally, and the lock ring is with first outer pipe fitting joint on the second outer pipe fitting to fix first outer pipe fitting and second outer pipe fitting. Simultaneously, first interior pipe fitting and the mutual butt of second interior pipe fitting to make whole first outer pipe fitting and second outer pipe fitting be the intercommunication state, and then accomplish the connection to two hoses.

When the connection of two hoses needs to be released, only the pressing piece is required to be pressed, the pressing spring is pressed to shrink, the limiting state of the locking ring is released, the locking ring moves and releases the locking of the first outer pipe fitting, so that the first inner pipe fitting and the second inner pipe fitting are released from being in contact, the first inner pipe fitting slides outwards of the first outer pipe fitting, the second inner pipe fitting slides outwards of the second outer pipe fitting, the communication of the second outer pipe fitting and the first outer pipe fitting is blocked, and gas and liquid in the two hoses are prevented from leaking.

Therefore, a plastic joint is not needed when two hoses are plugged and unplugged, and the hoses are not needed to be plugged and unplugged directly, so that convenience in plugging and unplugging the hoses is improved.

Optionally, the first outer pipe comprises an inserted clamping pipe inserted and clamped in the second outer pipe and a first connecting pipe communicated with the inserted clamping pipe;

the first inner pipe is connected in the inserted clamping pipe in a sliding mode, and the first connecting pipe can be connected with the hose.

Through adopting above-mentioned technical scheme, first connecting pipe can be connected with one of them hose, and insert and set up the joint pipe and then be used for inserting and establish and joint in the outer pipe fitting of second.

Optionally, a locking protrusion is disposed on one side of the inner wall of the locking ring, a clamping groove is disposed on the outer wall of the inserted clamping pipe, and the locking protrusion is clamped in the clamping groove.

Through adopting above-mentioned technical scheme, when not pressing the piece to pressing, support the piece to pressing by the spring to make the lock ring of connecting on the piece of pressing not move, lock protruding joint in the joint recess on the lock ring, thereby make the substitution of speaking will insert and set up the joint pipe and fix. When the pressing piece is pressed, the locking protrusion moves, so that the clamping connection is released, and the inserted clamping connection pipe can be taken out from the second outer pipe fitting.

Optionally, a first wedge-shaped clamping ring is integrally formed on the outer wall of the first connecting pipe.

Through adopting above-mentioned technical scheme, through set up first wedge joint ring at the outer wall of first connecting pipe, can make hose interference fit and cover locate on the first connecting pipe when the hose of initial installation.

Optionally, the first inner pipe comprises a first abutting shaft which is slidably arranged at one end of the inserted clamping pipe, a first sliding shaft which is coaxially arranged on the first abutting shaft, a first sliding pipe which is coaxially arranged on the first sliding shaft, and a first telescopic spring of which one end is arranged on the first sliding pipe, and the other end of the first telescopic spring is abutted on the inner wall of one end of the inserted clamping pipe;

the extending part of the first abutting shaft is communicated with the second inner pipe fitting when abutting;

the extending part of the first abutting shaft is in sealing arrangement when the extending part of the first abutting shaft is not abutted with the second inner pipe fitting.

Through adopting above-mentioned technical scheme, when first butt axle is pressed, first expansion spring shrink, first butt axle, first slip axle and first slip intraductal to make and insert and set up the bayonet joint pipe and be the intercommunication state. When the first abutting shaft is not pressed, the first abutting shaft seals the inserted clamping pipe.

Optionally, a first sealing ring is disposed on the first abutting shaft.

Through adopting above-mentioned technical scheme, when first butt axle is not pressed, first sealing washer will slide the department and seal to promote sealed effect.

Optionally, a second sealing ring is arranged on the outer wall of the inserted clamping pipe.

Through adopting above-mentioned technical scheme, when inserting and establishing the bayonet joint pipe and inserting and establishing and the joint in second outer pipe fitting, the second sealing washer can be sealed with inserting the department to promote the leakproofness of inserting the department.

Optionally, the second outer pipe fitting comprises a sleeve sleeved and clamped on the inserted clamping pipe and a second connecting pipe connected to the sleeve; the second inner pipe is connected in the sleeve in a sliding mode, the second connecting pipe can be connected with the hose, the pressing spring is arranged on the sleeve, and the locking ring penetrates through the sleeve.

By adopting the technical scheme, the inserted clamping pipe is inserted and clamped in the sleeve, the second connecting pipe is connected with the other hose, and the locking ring is arranged on the sleeve, so that the insertion and the extraction of the inserted clamping pipe on the sleeve are controlled by the locking ring, and the connection and the disconnection of the two hoses are realized.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when two hoses are connected, the inserted clamping pipe is inserted and clamped in the sleeve through the locking ring, and the whole first pipe assembly is communicated with the second pipe assembly. When the two hoses are disconnected, the pressing piece is pressed to enable the locking ring to release the locking joint of the inserted clamping pipe. Therefore, the hose can be directly plugged and unplugged without being connected with a plastic connector, and convenience in plugging and unplugging the hose is improved.

Drawings

Fig. 1 is a schematic overall structure of an embodiment of the present application.

Fig. 2 is a schematic overall sectional structure of an embodiment of the present application.

Fig. 3 is a schematic cross-sectional view of a first tube assembly in an embodiment of the present application.

Fig. 4 is a schematic cross-sectional view of a second tube assembly in an embodiment of the present application.

Reference numerals: 1. a first tube assembly; 11. a first outer tube member; 111. a first connection pipe; 1111. the first wedge-shaped clamping ring; 112. a butt joint pipe; 113. inserting a clamping pipe; 1131. a second seal ring; 1132. a clamping groove; 12. a first inner tube; 121. a first abutment shaft; 1211. a first seal ring; 122. a first slip shaft; 123. a first slip tube; 124. a first extension spring; 2. a second tube assembly; 21. a second outer tube; 211. a second connection pipe; 2111. a second wedge-shaped clamping ring; 212. a sleeve; 2121. a slip cavity; 2122. a clamping cavity is inserted; 2124. a casing; 22. a second inner tube; 221. a second abutment shaft; 2211. a third seal ring; 222. a second slip shaft; 223. a second slip tube; 224. a second extension spring; 3. a locking assembly; 31. pressing the sheet; 32. pressing the spring; 33. a locking ring; 331. and a locking protrusion.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-4.

The embodiment of the application discloses a medical connector.

Referring to fig. 1 and 2, a medical connector includes a first tube assembly 1, a second tube assembly 2, and a locking assembly 3. The hose can be connected in the one end of first tube subassembly 1, and the other end of first tube subassembly 1 can insert and the joint in the one end of second tube subassembly 2, and the other end of second tube subassembly 2 can be connected with another hose. The locking assembly 3 is disposed on the second pipe assembly 2, and the locking assembly 3 can control locking and unlocking of the first pipe assembly 1 on the second pipe assembly 2. And is in a communication state when the first pipe assembly 1 and the second pipe assembly 2 are connected, and is in a closed state when the first pipe assembly 1 and the second pipe assembly 2 are not connected.

Referring to fig. 1 and 3, the first pipe assembly 1 includes a first outer pipe member 11 and a first inner pipe member 12. One end of the first outer pipe fitting 11 can be connected with a hose, and the other end can be inserted and clamped in the second pipe assembly 2. The first inner pipe fitting 12 slides through the other end of the first outer pipe fitting 11, and the first inner pipe fitting 12 extends from one end of the first outer pipe fitting 11 away from the hose, and the extending part can be abutted with the second pipe assembly 2.

When the first tube assembly 1 is not connected to the second tube assembly 2, the first inner tube member 12 is not in abutment with the second tube assembly 2, thereby extending and rendering the entire first tube assembly 1 incapable of passing gas and liquid. When the first pipe assembly 1 is connected with the second pipe assembly 2, the first inner pipe member 12 abuts against the second pipe assembly 2 and slides into the first outer pipe member 11, thereby enabling the entire first pipe assembly 1 to pass gas and liquid.

Referring to fig. 1 and 2, the first outer tube 11 includes a first connection tube 111, an abutment tube 112, and an interposed bayonet tube 113. One end of the first connecting tube 111 and one end of the abutting tube 112 are fixedly connected coaxially, and the other end can be connected with a hose. The diameter of the first connecting pipe 111 is smaller than that of the abutting pipe 112 and is integrally formed, and the first connecting pipe 111 and the abutting pipe 112 are communicated. And a first wedge-shaped clamping ring 1111 is integrally formed on the outer wall of the first connecting pipe 111, so that the hose is connected in an interference fit manner.

The end of the abutting pipe 112 far away from the first connecting pipe 111 is fixedly connected with the end of the inserted clamping pipe 113 in a coaxial mode, and the other end of the inserted clamping pipe 113 can be inserted and clamped at one end of the second pipe assembly 2. And the diameter of the inserted bayonet tube 113 is between the first connecting tube 111 and the abutment tube 112.

The first inner pipe fitting 12 is slidably disposed in the inserted joint pipe 113 and extends out from the inserted joint pipe 113. When the inserted joint pipe 113 is inserted and clamped in the second pipe assembly 2, the abutting pipe 112 abuts against the second pipe assembly 2, and the portion of the first inner pipe fitting 12 extending out moves into the inserted joint pipe 113.

Referring to fig. 1 and 3, the first inner tube 12 includes a first abutment shaft 121, a first slip shaft 122, a first slip pipe 123, and a first extension spring 124. The first abutting shaft 121 is coaxially and slidably arranged at one end of the inserted clamping tube 113 away from the abutting tube 112, and the first abutting shaft 121 extends out from one end of the inserted clamping tube 113 away from the abutting tube 112. The first sliding shaft 122 and the first sliding pipe 123 are sequentially and coaxially fixedly connected to one end, close to the abutting pipe 112, of the first abutting shaft 121, the diameters of the first abutting shaft 121, the first sliding shaft 122 and the first sliding pipe 123 are sequentially increased, and the first sliding shaft 122 and the first sliding pipe 123 are integrally formed, and the outer walls of the first sliding shaft 122 and the first sliding pipe 123 can be abutted against the inner wall of the inserted clamping pipe 113. One end of the first extension spring 124 is clamped in the first sliding tube 123, and the other end is abutted against one end of the inserted clamping tube 113, which is close to the abutting tube 112.

When the first abutting shaft 121 is pressed, the first expansion spring 124 contracts, and the first abutting shaft 121, the first sliding shaft 122, and the first sliding pipe 123 move inward, so that the inserted joint pipe 113 is in a communication state. When the first abutment shaft 121 is not pressed, the first abutment shaft 121 closes the inserted joint pipe 113.

Meanwhile, the first sliding shaft 122 is hollow, and a plurality of communication grooves are formed in the side wall of the first sliding shaft 122 at equal intervals along the central axis, and the first sliding shaft 122 is communicated with the first sliding pipe 123. The first sealing ring 1211 is clamped at one end of the first abutting shaft 121, which is close to the first sliding shaft 122, so that the tightness of the first abutting shaft 121 when the first abutting shaft extends out is improved. The second sealing ring 1131 is clamped at one end, close to the second pipe assembly 2, of the inserted clamping pipe 113, so that the tightness of the inserted clamping pipe when the inserted clamping pipe is connected with the second pipe assembly 2 is improved.

Referring to fig. 1, 3 and 4, the second pipe assembly 2 includes a second outer pipe member 21 and a second inner pipe member 22. One end of the second outer pipe member 21 can be connected with another hose, and the other end can be inserted and clamped by the inserted and clamped pipe 113. The second inner tube 22 is identical to the first inner tube 12. The second inner pipe fitting 22 is slidably disposed through the other end of the second outer pipe fitting 21, and the first inner pipe fitting 12 extends from the end of the second outer pipe fitting 21 away from the hose, and the extending portion can be abutted with the first abutment shaft 121 on the first inner pipe fitting 12.

Referring to fig. 3 and 4, the second outer pipe 21 includes a second connection pipe 211 and a sleeve 212. One end of the second connection tube 211 is fixedly connected coaxially with one end of the sleeve 212, and the other end can be connected with another hose. And the diameter of the second connection pipe 211 is the same as that of the first connection pipe 111 and smaller than that of the sleeve 212. The second connection pipe 211 and the sleeve 212 are provided in communication. And a second wedge-shaped clamping ring 2111 is integrally formed on the outer wall of the second connecting pipe 211, so that the hose is connected in an interference fit manner

The second connecting tube 211 is coaxially connected to one end of the sleeve 212, and a sliding cavity 2121 and an inserting and clamping cavity 2122 are integrally formed in the sleeve 212. Both ends of the sliding cavity 2121 are respectively communicated with the second connecting pipe 211 and the inserting and clamping cavity 2122. The second inner tube 22 is slidably connected to the sliding cavity 2121 and extends into the insert clamping cavity 2122. The outer wall of the inserted clamping pipe 113 is provided with a clamping groove 1132 in an encircling and integrated mode, and the locking assembly 3 can be clamped on the clamping groove 1132.

The second inner tube 22 includes a second abutment shaft 221, a second slip shaft 222, a second slip tube 223, and a second extension spring 224. The entire second inner tube 22 is identical to the first inner tube 12. Meanwhile, a third sealing ring 2211 is clamped on the peripheral wall of the second abutting shaft 221.

One end of the second extension spring 224, which is far away from the second sliding tube 223, is abutted against one end of the sleeve 212, which is close to the second connecting tube 211, and the second abutting shaft 221 extends into the inserted clamping cavity 2122 from the sliding cavity 2121. When the first pipe assembly 1 and the second pipe assembly 2 are connected, the first abutting shaft 121 and the second abutting shaft 221 abut against each other, thereby communicating the first pipe assembly 1 and the second pipe assembly 2.

Referring to fig. 3 and 4, the locking assembly 3 includes a pressing piece 31, a pressing spring 32, and a locking ring 33. The two sides of the sleeve 212 far away from one end of the second connecting pipe 211 are respectively provided with penetrating grooves, and the locking ring 33 penetrates through the sleeve 212 through the two penetrating grooves. One end of the pressing spring 32 is fixedly connected to the outer wall of the sleeve 212 near one of the penetrating grooves, and the other end is fixedly connected with one side of the pressing piece 31. And sleeve 212 is also fixedly connected with a sleeve 2124, sleeve 2124 is wrapped around the edge of pressing piece 31.

The pressing piece 31 is fixedly connected with one side of the locking ring 33, the locking protrusion 331 is integrally formed on the inner wall of the other side of the locking ring 33, and the locking protrusion 331 can be clamped on the clamping groove 1132 of the inserted clamping pipe 113, so that the inserted clamping pipe 113 is clamped. When the pressing piece 31 is pressed, the lock ring 33 moves in the width direction of the sleeve 212, and the lock protrusion 331 and the lock groove 1132 are released from the lock, thereby releasing the lock of the plug-in bayonet joint 113.

The implementation principle of the medical connector in the embodiment of the application is as follows: when two hoses need to be connected, only the inserted clamping pipe 113 is inserted and clamped in the sleeve 212 through the locking ring 33, the first abutting shaft 121 and the second abutting shaft 221 are abutted with each other, and the whole first pipe assembly 1 and the second pipe assembly 2 are communicated. When disconnecting the two hoses, only the pressing piece 31 is pressed, the locking ring 33 releases the locking engagement with the inserted joint pipe 113, and the first abutting shaft 121 closes the inserted joint pipe 113, and the second abutting shaft 221 closes the sleeve 212. Therefore, the hose can be directly plugged and unplugged without being connected with a plastic connector, and convenience in plugging and unplugging the hose is improved.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. A medical connector, characterized in that: comprises a first pipe assembly (1), a second pipe assembly (2) and a locking assembly (3); the first pipe assembly (1) comprises a first outer pipe fitting (11) and a first inner pipe fitting (12) which is slidably arranged in the first outer pipe fitting (11), the first inner pipe fitting (12) extends out from one end of the first outer pipe fitting (11), and the other end of the first inner pipe fitting (12) can be connected with a hose; the second pipe assembly (2) comprises a second outer pipe fitting (21) and a second inner pipe fitting (22) which is slidably arranged in the second outer pipe fitting (21), and the second inner pipe fitting (22) extends out from one end of the second outer pipe fitting (21); the other end of the second outer pipe fitting (21) can be connected with another hose;

one end of the first outer pipe fitting (11) can be inserted into and clamped on the second outer pipe fitting (21), and the locking assembly (3) is arranged on the second outer pipe fitting (21) and used for controlling the locking of the first outer pipe fitting (11); the first inner pipe fitting (12) can be abutted with the second inner pipe fitting (22), and the first outer pipe fitting (11) and the second outer pipe fitting (21) are communicated when the first inner pipe fitting (12) and the second inner pipe fitting (22) are abutted;

the locking assembly (3) comprises a pressing spring (32) with one end arranged on the second outer pipe fitting (21), a pressing piece (31) arranged at the other end of the pressing spring (32) and a locking ring (33) connected to the pressing piece (31); the locking ring (33) is arranged on the second outer pipe fitting (21) in a penetrating mode and can slide back and forth on the pressing of the pressing piece (31), and the first outer pipe fitting (11) is clamped on the second outer pipe fitting (21) through the locking ring (33).

2. A medical connector according to claim 1, wherein: the first outer pipe fitting (11) comprises an inserted clamping pipe (113) which is inserted and clamped in the second outer pipe fitting (21) and a first connecting pipe (111) which is communicated with the inserted clamping pipe (113);

the first inner pipe fitting (12) is connected in a sliding manner in the inserted clamping connection pipe (113), and the first connection pipe (111) can be connected with a hose.

3. A medical connector according to claim 2, wherein: one side of the inner wall of the locking ring (33) is provided with a locking protrusion (331), the outer wall of the inserted clamping pipe (113) is provided with a clamping groove (1132), and the locking protrusion (331) is clamped in the clamping groove (1132).

4. A medical connector according to claim 2, wherein: a first wedge-shaped clamping ring (1111) is integrally formed on the outer wall of the first connecting pipe (111).

5. A medical connector according to claim 2, wherein: the first inner pipe fitting (12) comprises a first abutting shaft (121) which is arranged at one end of the inserted clamping pipe (113) in a sliding manner, a first sliding shaft (122) which is coaxially arranged on the first abutting shaft (121), a first sliding pipe (123) which is coaxially arranged on the first sliding shaft (122) and a first telescopic spring (124) which is arranged at one end of the first sliding pipe (123), wherein the other end of the first telescopic spring (124) is abutted on the inner wall at one end of the inserted clamping pipe (113);

the extending part of the first abutting shaft (121) is communicated with the second inner pipe fitting (22) when abutting;

the part of the first abutting shaft (121) extending out is closed when the second inner pipe fitting (22) is not abutted.

6. A medical connector according to claim 5, wherein: a first sealing ring (1211) is arranged on the first abutting shaft (121).

7. A medical connector according to claim 6, wherein: the outer wall of the inserted clamping pipe (113) is provided with a second sealing ring (1131).

8. A medical connector according to claim 5, wherein: the second outer pipe fitting (21) comprises a sleeve (212) sleeved and clamped on the inserted clamping pipe (113) and a second connecting pipe (211) connected to the sleeve (212); the second inner pipe fitting (22) is connected in the sleeve (212) in a sliding way, and the second connecting pipe (211) can be connected with a hose; the pressing spring (32) is arranged on the sleeve (212), and the locking ring (33) penetrates through the sleeve (212).