Self-locking connector device for medical combined pipeline

Abstract

The utility model discloses a self-locking connector device for a medical combined pipeline, which comprises a shell and a connector, a base is arranged in the shell, the connector can extend into the shell to be fixedly inserted into the base, and a locking structure is arranged in the shell; the locking structure comprises a locking ring and an elastic piece, the locking ring is in sliding limiting connection with the shell, a guide hole is formed in the locking ring, the connector penetrates through the guide hole and then is connected with the base in an inserted mode, an operation rod is arranged on the locking ring, one end of the operation rod extends out of the shell, the elastic piece is used for pushing the locking ring to slide in the shell in the radial direction, and a wedge-shaped guide block is arranged on the outer side wall of the connector. The wedge-shaped guide block can penetrate through the guide hole and push the locking ring to extrude the elastic piece, and the wedge-shaped guide block can abut against the end face of the locking ring. Self-locking can be achieved by inserting the connector, unlocking can be achieved through the operating rod, the structure is simple, connection is stable and not prone to loosening, and the safety of medical operation can be improved; and the operation is simple and convenient, and can be completed by a single person.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field, concretely relates to a self locking joint device for medical combined pipeline. BACKGROUND

[0002] Some connecting pieces are often used in medical equipment to connect waterway, gas path or electrical device etc. In the installation process, the joint and the base are connected with the pipeline respectively, and then the base and the joint are installed together to realize the communication of the pipeline.

[0003] The traditional locking mode is to connect and fix by dripping glue after the base and the joint are installed, but the dripping glue mode cannot be disassembled and is inconvenient for repeated use. Based on this, some locking structures using buckle lock and blocking piece lock appear on the market to realize that the joint and the base can be disassembled and meet the demand of repeated use. However, the installation process of this structure mode is relatively troublesome, and sometimes two people need to cooperate to complete the installation. Moreover, the locking structure of the existing buckle lock and blocking piece lock is not stable enough and is prone to looseness, which has the risk of falling off and affects the safety of medical operation. SUMMARY

[0004] In order to solve the problems in the prior art, the utility model provides a self locking joint device for medical combined pipeline, which comprises a shell and a joint, a base is arranged in the shell, the base is limit connected with the shell, the joint can be inserted into the shell and fixed with the base, a locking structure is arranged in the shell, and the locking structure is detachably limit connected with the joint. The locking structure comprises a locking ring and an elastic piece, the locking ring is limit connected with the shell in sliding mode, a guide hole is arranged in the locking ring, the joint is inserted into the base through the guide hole, an operating rod is arranged on the locking ring, one end of the operating rod extends out of the shell, the elastic piece is connected with the locking ring, the elastic piece is used for pushing the locking ring to slide radially in the shell, a wedge-shaped guide block is arranged on the outer side wall of the joint, the wedge-shaped guide block can pass through the guide hole and push the locking ring to extrude the elastic piece, and the wedge-shaped guide block can abut against the end face of the locking ring.

[0005] As a further improvement of the utility model, a guide block is arranged on the inner side wall of the shell, a guide groove is arranged on the outer side wall of the locking ring at a position corresponding to the guide block, and the guide block is limit connected with the guide groove in sliding mode.

[0006] As a further improvement of the utility model, the number of guide blocks is two, and the two guide blocks are symmetrically distributed along the central axis of the shell, and the guide grooves are arranged one by one corresponding to the guide blocks.

[0007] As a further improvement of the utility model, the side wall of the guide hole is provided with a guide groove matched with the wedge-shaped guide block, and the wedge-shaped guide block can pass through the guide groove.

[0008] As a further improvement of the utility model, the number of the wedge-shaped guide blocks is two, and the two wedge-shaped guide blocks are symmetrically distributed along the central axis of the joint, and the guide grooves are arranged one by one corresponding to the wedge-shaped guide blocks.

[0009] As a further improvement of the utility model, the elastic member is connected to the side of the locking ring away from the operating rod.

[0010] As a further improvement of the utility model, the elastic member is a spiral spring.

[0011] As a further improvement of the utility model, the inner side wall of the shell is provided with a first mounting column, the side of the locking ring away from the operating rod is provided with a second mounting column, the two ends of the elastic member are connected to the first mounting column and the second mounting column respectively, and the second mounting column can abut against the first mounting column.

[0012] Compared with the prior art, the utility model has the advantages of:

[0013] The utility model discloses a joint locking base, which comprises a shell, a locking ring, an operating rod, an elastic member and a plurality of wedge-shaped guide blocks.

[0014] During installation, only the joint needs to be inserted into the shell until the joint is inserted and fixed with the base.

[0015] When disassembling, the operating rod is pressed or pulled to make the locking ring move radially in the shell and compress the elastic member. BRIEF DESCRIPTION OF DRAWINGS

[0016] To more clearly illustrate the solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0018] Figure 2 This is a top view of an embodiment of the present invention.

[0019] Figure 3 yes Figure 2 Schematic diagram of the cross-sectional structure of AA;

[0020] Figure 4 yes Figure 2 Schematic diagram of the cross-sectional structure of BB;

[0021] Figure 5 This is a schematic diagram of the locking ring in an embodiment of this utility model. Detailed Implementation

[0022] Unless otherwise defined, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used in the specification is for the purpose of describing particular embodiments only and is not intended to limit the invention; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this invention are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or accompanying drawings of this invention are used to distinguish different objects, not to describe a particular order.

[0023] In this invention, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this invention. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment to other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this invention can be combined with other embodiments.

[0024] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0025] like Figures 1-5As shown, a self-locking joint device for medical combination pipeline, including shell 1 and joint 2, the shell 1 is provided with base 3, base 3 and shell 1 detachable limit connection, one end of joint 2 can be inserted into the shell 1 and base 3 plug-in fixed, the shell 1 is provided with locking structure, locking mechanism and joint 2 detachable limit connection;Through the locking structure can be locked in the shell 1 and base 3 joint 2 plug-in fixed, so that the joint 2 and base 3 plug-in fixed, ensure that the fluid can flow between the joint 2 and base 3.

[0026] Specifically, the locking structure includes locking ring 4 and elastic element 5, locking ring 4 and shell 1 sliding limit connection, locking ring 4 is provided with guide hole 41;When installing joint 2, joint 2 passes through guide hole 41 and base 3 plug-in, locking ring 4 is provided with operating rod 42, one end of operating rod 42 extends out of the shell 1. One end of elastic element 5 is connected with locking ring 4, elastic element 5 is used for pushing locking ring 4 to slide radially in the shell 1, the outer side wall of joint 2 is provided with wedge-shaped guide block 21, wedge-shaped guide block 21 can pass through guide hole 41, and wedge-shaped guide block 21 can push locking ring 4 to slide radially in the shell 1 and extrude elastic element 5, wedge-shaped guide block 21 can abut with the end face of locking ring 4.

[0027] In the process of assembling joint 2 and base 3, first, base 3 is installed into the shell 1 and is limited and fixed, then one end of joint 2 extends into the shell 1 until joint 2 and base 3 are plug-in fixed. In this process, joint 2 will pass through guide hole 41, and wedge-shaped guide block 21 will push locking ring 4 to move radially in the shell 1 when passing through guide hole 41, and then compress elastic element 5, so that elastic element 5 is elastically deformed. When joint 2 and base 3 are plug-in completed, wedge-shaped guide block 21 just passes over locking ring 4, and at this time, elastic element 5 releases elastic potential energy and pushes locking ring 4 to move reversely in the shell 1, so that the end face of locking ring 4 abuts with wedge-shaped guide block 21. After the installation of joint 2 is completed, the end of joint 2 is plug-in fixed with base 3, and wedge-shaped guide block 21 abuts with locking ring 4 to limit, so that joint 2 is limited and fixed in the shell 1 as a whole, realizing that joint 2 is locked and stable with base 3.

[0028] When joint 2 and base 3 need to be disassembled, the user can press or pull operating rod 42, so that locking ring 4 moves radially in the shell 1 and compresses elastic element 5;When guide hole 41 and wedge-shaped guide block 21 are aligned, joint 2 can be pulled, so that wedge-shaped guide block 21 passes through guide hole 41, thereby pulling out joint 2 from base 3, realizing disassembly.

[0029] The self-locking joint device is self-locked by inserting the joint 2 into the base 3, and is unlocked by operating the lever 42, so that the structure is simple, the connection is stable and not easy to loosen, the risk of the joint 2 falling off is reduced, and the safety of medical operation is improved; and the operation is simple and convenient, and can be completed by one person, so that the practicality is improved.

[0030] The inner side wall of the guide hole 41 is provided with a guide groove 43, and the wedge-shaped guide block 21 can pass through the guide groove 43. In the process of installing the joint 2, the wedge-shaped guide block 21 will extend into the guide groove 43, and the inclined surface on the wedge-shaped guide block 21 will press the side wall of the guide groove 43, thereby pushing the locking ring 4 to compress the elastic element 5; after the joint 2 is inserted into the base 3, the wedge-shaped guide block 21 passes through the guide groove 43, and under the action of the elastic force of the elastic element 5, the locking ring 4 is pushed to move reversely, so that the wedge-shaped guide block 21 abuts against the end surface of the locking ring 4, and the locking task of the joint 2 is completed. When the joint 2 is disassembled, the locking ring 4 is radially slid in the shell 1 by pulling or pressing the operating lever 42, and when the wedge-shaped guide block 21 is aligned with the guide groove 43, the joint 2 can be pulled outwards, the wedge-shaped guide block 21 passes through the guide groove 43, so that the joint 2 is separated from the base 3, and the disassembly task is completed. The cooperation of the guide groove 43 and the wedge-shaped guide block 21 can guide the installation direction of the joint 2, so that the joint 2 and the base 3 always maintain an installation direction, and the convenience of installation and the stability of the structure are improved.

[0031] In the embodiment, the number of wedge-shaped guide blocks 21 is two, and the two wedge-shaped guide blocks 21 are symmetrically distributed along the central axis of the joint 2, and the guide groove 43 is correspondingly arranged with the wedge-shaped guide block 21. In other embodiments, the number of wedge-shaped guide blocks 21 and guide grooves 43 can also be any other number, as long as they are one-to-one correspondence.

[0032] In the embodiment, the elastic element 5 is connected to the side of the locking ring 4 away from the operating lever 42. Thus, in the process of installing the joint 2, the wedge-shaped guide block 21 will push the locking ring 4 to extend into the shell 1 and compress the elastic element 5 during the process of passing through the guide hole 41; when the joint 2 is disassembled, the elastic element 5 can be compressed by pressing the operating lever 42, so that the guide hole 41 is aligned with the wedge-shaped guide block 21.

[0033] In other embodiments, the elastic element 5 can be sleeved on the periphery of the operating lever 42, and the movement direction of the locking ring 4 during the installation and disassembly of the joint 2 is just opposite to that of the embodiment, and the operating lever 42 is pulled during the disassembly of the joint 2.

[0034] The inner side wall of the shell 1 is provided with a first mounting column 11, the side of the locking ring 4 away from the operating rod 42 is provided with a second mounting column 44, the two ends of the elastic member 5 are connected with the first mounting column 11 and the second mounting column 44 respectively, and the second mounting column 44 can be connected with the first mounting column 11. The first mounting column 11 and the second mounting column 44 can limit and fix the elastic member 5 in the shell 1, which improves the stability of the structure. On the other hand, through the cooperation of the first mounting column 11 and the second mounting column 44, the guide groove 43 and the wedge-shaped guide block 21 can be quickly aligned during the disassembly of the connector 2, which improves the convenience of operation. When disassembling, the user presses the operating rod 42, so that the locking ring 4 slides radially in the shell 1 and compresses the elastic member 5; with the movement of the locking ring 4, the second mounting column 44 will abut against the first mounting column 11; when the second mounting column 44 abuts against the first mounting column 11, the movement of the locking ring 4 stops, at this time the guide groove 43 on the locking ring 4 is just aligned with the wedge-shaped guide block 21, at this time the user can pull the connector 2, so that the wedge-shaped guide block 21 passes through the guide groove 43, so that the connector 2 is separated from the base 3, and the disassembly process is completed.

[0035] In the embodiment, the elastic member 5 is a spiral metal spring; in other embodiments, the elastic member 5 can also adopt other elastic structures, for example, a spring sheet and the like.

[0036] In order to limit and guide the movement direction of the locking ring 4, a guide block 12 is arranged on the inner side wall of the shell 1, a guide groove 45 is arranged on the outer side wall of the locking ring 4 at a position corresponding to the guide block 12, and the guide block 12 and the guide groove 45 are in sliding connection. During the installation or disassembly of the connector 2, the locking ring 4 will slide in the direction of the guide block 12, and the movement direction of the locking ring 4 is limited and guided through the cooperation of the guide block 12 and the guide groove 45, so that the locking ring 4 can smoothly lock or unlock the connector 2, and the stability of the transmission is improved.

[0037] In the embodiment, the number of guide blocks 12 is two, and the two guide blocks 12 are symmetrically distributed along the central axis of the shell 1, and the guide grooves 45 are arranged one by one corresponding to the guide blocks 12. Moreover, in the embodiment, the shapes and sizes of the two guide blocks 12 are not the same, and the shapes and sizes of the guide grooves 45 corresponding to the guide blocks 12 are matched, which can position the installation direction of the locking ring 4 and avoid the situation that the locking ring 4 is installed in reverse. In other embodiments, the number of guide blocks 12 can also be any other number, and the shapes and sizes of the plurality of guide blocks 12 can also be completely the same, and the user can position the installation direction of the locking ring 4 through the direction of the operating rod 42.

[0038] The above specific embodiments are the preferred embodiments of the utility model, and do not limit the specific implementation range of the utility model, the range of the utility model includes but is not limited to the specific embodiments, and equivalent changes made according to the utility model are within the protection range of the utility model.

Claims

1. A self-locking connector device for medical combination tubing, characterized in that: The device includes a housing and a connector. The housing contains a base, which is connected to the housing in a limiting manner. The connector can extend into the housing and be inserted and fixed to the base. The housing contains a locking structure, which is detachably connected to the connector in a limiting manner. The locking structure includes a locking ring and an elastic element. The locking ring is slidably limited to the outer shell. The locking ring has a guide hole inside. The connector passes through the guide hole and is inserted into the base. The locking ring has an operating rod, one end of which extends out of the outer shell. The elastic element is connected to the locking ring and is used to push the locking ring to slide radially within the outer shell. The outer wall of the connector has a wedge-shaped guide block. The wedge-shaped guide block can pass through the guide hole and can push the locking ring to squeeze the elastic element. The wedge-shaped guide block can abut against the end face of the locking ring.

2. The self-locking connector device for medical combination tubing according to claim 1, characterized in that: The inner wall of the housing is provided with a guide block, and the outer wall of the locking ring is provided with a guide groove at a position corresponding to the guide block. The guide block and the guide groove are slidably connected.

3. The self-locking connector device for medical combination tubing according to claim 2, characterized in that: There are two guide blocks, and the two guide blocks are symmetrically distributed along the central axis of the outer shell. The guide groove is provided in a one-to-one correspondence with the guide block.

4. The self-locking connector device for medical combined tubing according to claim 1, characterized in that: The guide hole has a guide groove on its side wall that is adapted to the wedge-shaped guide block, and the wedge-shaped guide block can pass through the guide groove.

5. The self-locking connector device for medical combination tubing according to claim 4, characterized in that: There are two wedge-shaped guide blocks, and the two wedge-shaped guide blocks are symmetrically distributed along the central axis of the joint. The guide groove is provided in a one-to-one correspondence with the wedge-shaped guide block.

6. The self-locking connector device for medical combination tubing according to claim 1, characterized in that: The elastic element is connected to the side of the locking ring away from the operating lever.

7. The self-locking connector device for medical combination tubing according to claim 6, characterized in that: The elastic element is a helical spring.

8. The self-locking connector device for medical combination tubing according to claim 6, characterized in that: The inner wall of the housing is provided with a first mounting post, and the locking ring is provided with a second mounting post on the side away from the operating rod. The two ends of the elastic member are respectively connected to the first mounting post and the second mounting post, and the second mounting post can abut against the first mounting post.

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