CN216061474U

CN216061474U - Drainage tube connector

Info

Publication number: CN216061474U
Application number: CN202122287292.XU
Authority: CN
Inventors: 王海峰
Original assignee: TIANJIN XIANGYUE MEDICAL EQUIPMENT CO Ltd
Current assignee: TIANJIN XIANGYUE MEDICAL EQUIPMENT CO Ltd
Priority date: 2021-09-22
Filing date: 2021-09-22
Publication date: 2022-03-18
Anticipated expiration: 2031-09-22

Abstract

The utility model relates to a drainage tube connecting joint, which belongs to the technical field of medical instruments and comprises a switching part and a single-pass joint, wherein the switching part is connected with one end of the single-pass joint, the diameter of the other end of the single-pass joint is gradually reduced and is sleeved with the drainage tube joint, the other end of the switching part is sleeved with other external device pipelines needing switching, the single-pass joint is of a tubular pile stepped structure, and the ratio of the length to the diameter of a step is more than 1. The novel connector realizes a different connection mode from a single-way connector by designing the switching part; the device is suitable for connecting common drainage tubes with various diameters; under the action of the holding force formed by elastic contraction of the drainage tube, the inner surface of the drainage tube is ensured to form close airtight fit with the outer surface of the joint, and meanwhile, enough axial static friction force is formed to provide enough pull-off resistance; when trying to pull off, the drainage tube shrinks and becomes thin, the holding force to the joint pipe is further improved, and the pull-off resistance is improved.

Description

Drainage tube connector

Technical Field

The utility model belongs to the technical field of medical instruments, and particularly relates to a drainage tube connecting joint.

Background

At present, several connection structure forms exist between a connection joint (or a connector) carried on a drainage tube and a drainage negative pressure source connection tube:

the most common structural form is a tower-shaped joint with an inverted cone, the injection molding of the joint is limited by the process, and the joint has the defects of low connection strength and easy pull-off caused by rough surface and no sharp factor at the large-diameter position of the inverted cone; meanwhile, the head of the inverted cone tower has a parting line fracture difference, so that the air tightness is poor; in addition, the connection form of the stepped inner hole is only suitable for the rigid PVC drainage tube, and has poor pulling-off resistance and air tightness reliability (seriously influenced by the rigidity of the drainage tube). Surface ladder cylinder form connector among the prior art, every section cylinder draw ratio is < 1, and according to the experiment, this kind of draw ratio, joint strength is not enough.

Meanwhile, the traditional drainage tube connector can only be singly connected with a drainage tube or a drainage bag, the drainage tube connector is not convenient to use, and medical risks are increased by frequently replacing the drainage tube connector.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a drainage tube connecting joint, which aims to solve the technical problems that the drainage tube connecting joint in the prior art is low in connecting strength and cannot be used for simultaneously connecting two drainage tubes.

In order to achieve the purpose, the specific technical scheme of the drainage tube connecting joint is as follows:

the utility model provides a drainage tube attach fitting, includes switching portion, single-pass joint, switching portion is connected with single-pass joint one end, single-pass joint other end diameter reduces gradually and cup joints with the drainage tube joint, and the drainage tube passes through single-pass joint and switching portion and external connection.

Further, the switching portion is three way connection head, three way connection head includes first one-way link, switching pipe link and the single-way link of second, first one-way link and the single-way link of second cup joint with the single-way joint respectively, and switching pipe link cup joints with other external device pipelines that need the switching.

Furthermore, a first single-pass joint sleeving part, a switching pipe sleeving part and a second single-pass joint sleeving part are respectively arranged on the first single-pass connecting end, the switching pipe connecting end and the second single-pass connecting end, the first single-pass joint sleeving part and the second single-pass joint sleeving part are respectively sleeved with the single-pass joint, and the switching pipe sleeving part is sleeved with other external device pipelines needing to be switched.

Further, first single-pass joint cup jointing portion, adapter tube cup jointing portion, the single-pass joint cup jointing portion body of second are outside to be the inclined plane structure, and inclined plane and body outer wall junction all are provided with first arch of group, and it is protruding that the department of extension is provided with the second group, and first arch of group is used for increasing axial static friction when first single-pass joint cup jointing portion (1111), adapter tube cup jointing portion, the single-pass joint cup jointing portion of second cup joint with corresponding joint, and the second is organized the arch and is used for restricting the degree of depth that the single-pass joint cup jointed.

Further, switching portion is single-pass adapter, single-pass adapter includes single-pass joint link (121), single-pass switching pipe link, single-pass joint link and single-pass articulate, and single-pass switching pipe link cup joints with other external device pipelines that need the switching.

Furthermore, the single-pass joint connecting end and the single-pass joint connecting mode comprise a socket joint connecting mode and an integrated forming connecting mode.

Further, the single-pass joint is a tubular pile stepped structure, and the ratio of the length to the diameter of the step is greater than 1.

Further, the single-pass connects including opening single-pass joint, closed single-pass joint, opening single-pass joint cup joints with first single-pass joint cup joint portion, closed single-pass joint cup joints with second single-pass joint cup joint portion.

Further, the opening single-pass joint includes a three-way connection end and an open end, the three-way connection end is connected with the first single-pass joint sleeving part in a sleeving manner, and the open end pipe body is communicated with the outside.

Further, the closed single-pass joint comprises a second three-way connecting end and a closed end, the second three-way connecting end is sleeved with the sleeving part of the second single-pass joint, and the closed end is in a closed state.

The utility model has the advantages that: the novel drainage tube connecting joint realizes a different connecting mode from a single-way joint by designing a switching part, and the switching part is designed for a three-way joint to realize the simultaneous connection of two drainage tubes; the switching part is designed to be a single-way adapter and a single-way adapter which are integrally formed, the cylindrical surface is smooth and continuous, and a stepped cylindrical surface is adopted to realize interference sleeve joint with the drainage tube; the device is suitable for connecting common drainage tubes with various diameters; under the action of the holding force formed by elastic contraction of the drainage tube, the inner surface of the drainage tube is ensured to form close airtight fit with the outer surface of the joint, and meanwhile, enough axial static friction force is formed to provide enough pull-off resistance; when trying to pull off, the drainage tube shrinks and becomes thin, the holding force to the joint pipe is further improved, and the pull-off resistance is improved.

Drawings

FIG. 1 is a schematic view of the whole structure of a three-way connection joint of a drainage tube of the present invention;

FIG. 2 is a schematic side sectional view of a three-way connection joint of a drainage tube according to the present invention;

FIG. 3 is a schematic structural view of a three-way adapter of a drainage tube according to the present invention;

FIG. 4 is a schematic view of a sleeving structure of a single-way connection joint of a drainage tube according to the present invention;

FIG. 5 is a schematic view of an integrally formed structure of the single-pass connector of the drainage tube of the present invention;

FIG. 6 is a schematic view of an integrally formed two-structure of the single-pass connector of the drainage tube of the present invention;

the notation in the figure is: 1. an adapter part, 11, a three-way adapter, 12, a single-way adapter, 111, a first single-way connection end, 112, an adapter tube connection end, 113, a second single-way connection end, 121, a single-way adapter connection end, 122, a single-way adapter connection end, 1111, a first single-way adapter sleeving part, 1121, an adapter tube sleeving part, 1131, a second single-way adapter sleeving part, 1141, a first set of protrusions, 1151, a second set of protrusions, 1221, a single-way adapter sleeving part, 1211, a single-way adapter sleeving part, 2, a single-way adapter, 21, an open single-way adapter, 22, a closed single-way adapter, 23, a tubular pile ladder structure, 211, a first three-way connection end, 212, an open end, 221, a second three-way connection end, 222, a closed end.

Detailed Description

In order to better understand the purpose, structure and function of the present invention, a drainage tube connector according to the present invention will be described in detail with reference to the accompanying drawings.

The first embodiment is as follows:

as shown in figure 1, the drainage tube connecting joint comprises an adapter part 1 and a single-way joint 2, wherein the adapter part 1 is connected with one end of the single-way joint 2, the diameter of the other end of the single-way joint 2 is gradually reduced to be sleeved with the drainage tube joint, the single-way joint 2 is made of a material with certain elasticity and certain hardness, when the single-way joint 2 is sleeved with the adapter part 1, the elastic shrinkage is used for forming holding force, the sleeving firmness is ensured, and the drainage tube is connected with the outside through the adapter part 1 and the single-way joint 2.

Example two:

as shown in fig. 1-3, the switching portion 1 is a three-way adapter 11, the three-way adapter 11 includes a first one-way connection end 111, a switching tube connection end 112 and a second one-way connection end 113, the first one-way connection end 111 and the second one-way connection end 113 are respectively sleeved with the one-way connector 2, the switching tube connection end 112 is sleeved with other external device pipelines to be switched, and the three-way adapter is arranged to simultaneously connect two one-way connectors to a drainage tube; the first single-pass connection end 111, the adapter tube connection end 112 and the second single-pass connection end 113 are respectively provided with a first single-pass joint sleeving part 1111, an adapter tube sleeving part 1121 and a second single-pass joint sleeving part 1131, the first single-pass joint sleeving part 1111 and the second single-pass joint sleeving part 1131 are sleeved with a single-pass joint 2, and the adapter tube sleeving part 1121 is sleeved with other external device pipelines needing to be switched; the first single-pass joint sleeving part 1111, the adapter tube sleeving part 1121 and the second single-pass joint sleeving part 1131 are of an inclined plane structure, the joint of the inclined plane and the outer wall of the pipe body is provided with a first group of protrusions 1141 and a second group of protrusions 1151, the first group of protrusions 1141 are used for increasing the axial static friction force when the first single-pass joint sleeving part 1111, the adapter tube sleeving part 1121 and the second single-pass joint sleeving part 1131 are sleeved with corresponding joints, and the second group of protrusions 1151 are used for limiting the sleeving depth of the single-pass joint 2, so that the pull-off resistance is further improved.

The single-pass joint 2 is of a tubular pile stepped structure 23, the ratio of the length to the diameter of a step is greater than 1, the structural strength of the single-pass joint 2 is improved by controlling the ratio of the length to the diameter, the single-pass joint 2 comprises an open single-pass joint 21 and a closed single-pass joint 22, the open single-pass joint 21 is sleeved with a first single-pass connecting end 111, and the closed single-pass joint 22 is sleeved with a second single-pass connecting end 113; first drainage tube cup joints portion 1111 and the single-way joint 21 of opening and cup joints, the single-way joint portion of second cup joints 1131 and seals single-way joint 22 and cup joints, the single-way joint 21 of opening includes first three-way connection end 211 and open end 212, first three-way connection end 211 cup joints with first single-way joint portion of cup joint 1111, open end 212 body switches on with the outside, directly is connected the use with the drainage tube, when connecting thick drainage tube, cuts off the thin part of joint front end, ensures that drainage channel internal diameter and drainage tube internal diameter match, it includes second three-way connection end 221 and blind end 222 to seal single-way joint 22, second three-way connection end 221 cup joints 1131 with the single-way joint portion of second, blind end 222 is the encapsulated situation, when needs use, cuts off behind the blind end 222.

Example three:

as shown in fig. 4, the adapter portion 1 is a one-way adapter 12, the one-way adapter 12 is sleeved with a one-way connector 2, the one-way adapter 12 includes a one-way connector connection end 121 and a one-way adapter tube connection end 122, a one-way connector sleeving portion 1211 and a one-way adapter tube sleeving portion 1221 are arranged on the one-way connector connection end 121 and the one-way adapter tube connection end 122, the one-way connector sleeving portion 1211 is connected with the one-way connector 2, the one-way connector sleeving portion 1211 is sleeved with other external device pipelines needing to be connected, the one-way connector 2 is directly connected with a drainage tube for use, when a thick drainage tube is connected, a thin portion at the front end of the connector is cut off, the inner diameter of the drainage channel is ensured to be matched with the inner diameter of the drainage tube, and the one-way connector 2 is an open one-way connector 21 or a closed one-way connector 22.

Example four:

as shown in fig. 5-6, the switching part 1 is a single-way joint 12, the single-way joint 12 and the single-way joint 2 are integrally formed to ensure smooth and continuous cylindrical surface and not easy to break, the single-way joint is an open single-way joint 21 or a closed single-way joint 22, the drainage tube is communicated with the outside through the single-way joint 12 and the single-way joint 2, and when the single-way joint is connected with a thick drainage tube, a thin part at the front end of the joint is cut off to ensure that the inner diameter of the drainage channel is matched with the inner diameter of the drainage tube.

The novel drainage tube connecting joint realizes a different connecting mode from a single-way joint by designing a switching part, and the switching part is designed for a three-way joint to realize the simultaneous connection of two drainage tubes; the switching part is designed to be a single-way adapter and a single-way adapter which are integrally formed, the cylindrical surface is smooth and continuous, and a stepped cylindrical surface is adopted to realize interference sleeve joint with the drainage tube; the device is suitable for connecting common drainage tubes with various diameters; under the action of the holding force formed by elastic contraction of the drainage tube, the inner surface of the drainage tube is ensured to form close airtight fit with the outer surface of the joint, and meanwhile, enough axial static friction force is formed to provide enough pull-off resistance; when trying to pull off, the drainage tube shrinks and becomes thin, the holding force to the joint pipe is further improved, and the pull-off resistance is improved.

It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes in the features and embodiments, or equivalent substitutions may be made therein by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims

1. The utility model provides a drainage tube attach fitting, its characterized in that includes switching portion (1), single-pass joint (2), switching portion (1) is connected with single-pass joint (2) one end, single-pass joint (2) other end diameter reduces gradually and cup joints with the drainage tube connection, and the drainage tube passes through single-pass joint (2) and switching portion and external connection.

2. The drainage tube connecting joint according to claim 1, wherein the switching part (1) is a three-way joint (11), the three-way joint (11) comprises a first one-way connecting end (111), a switching tube connecting end (112) and a second one-way connecting end (113), the first one-way connecting end (111) and the second one-way connecting end (113) are respectively sleeved with the one-way joint (2), and the switching tube connecting end (112) is sleeved with other external device pipelines needing switching.

3. The drainage tube connector according to claim 2, wherein the first single-pass connector end (111), the adapter tube connector end (112) and the second single-pass connector end (113) are respectively provided with a first single-pass connector sleeving part (1111), an adapter tube sleeving part (1121) and a second single-pass connector sleeving part (1131), the first single-pass connector sleeving part (1111) and the second single-pass connector sleeving part (1131) are respectively sleeved with the single-pass connector (2), and the adapter tube sleeving part (1121) is sleeved with other external device pipelines to be connected.

4. The drainage tube connector according to claim 3, wherein the first single-pass connector sleeving part (1111), the adapter sleeving part (1121) and the second single-pass connector sleeving part (1131) are of a slope structure outside the tube body, a first set of protrusions (1141) are arranged at the connection positions of the slope and the outer wall of the tube body, a second set of protrusions (1151) are arranged at the extension positions, the first set of protrusions (1141) are used for increasing the axial static friction force when the first single-pass connector sleeving part (1111), the adapter sleeving part (1121) and the second single-pass connector sleeving part (1131) are sleeved with corresponding connectors, and the second set of protrusions (1151) are used for limiting the sleeving depth of the single-pass connector (2).

5. The drainage tube connecting joint according to claim 1, wherein the adapter part (1) is a single-way adapter (12), the single-way adapter (12) comprises a single-way joint connecting end (121) and a single-way adapter tube connecting end (122), the single-way joint connecting end (121) is connected with the single-way joint (2), and the single-way adapter tube connecting end (122) is sleeved with other external device pipelines needing to be switched.

6. The drainage tube connector according to claim 5, wherein the connection manner of the single-pass connector connection end (121) and the single-pass connector (2) comprises a socket connection manner and an integrally formed connection manner.

7. A draft tube connection fitting according to any one of claims 1 to 6 wherein the single pass fitting (2) is a tubular stake step structure (23) having a step length to diameter ratio greater than 1.

8. A drain connection according to claim 7, characterized in that the single-pass connection (2) comprises an open single-pass connection (21) and a closed single-pass connection (22), the open single-pass connection (21) is sleeved with a first single-pass connection sleeved portion (1111), and the closed single-pass connection (22) is sleeved with a second single-pass connection sleeved portion (1131).

9. The drainage tube connector according to claim 8, wherein the open single-way connector (21) comprises a first three-way connector (211) and an open end (212), the first three-way connector (211) is sleeved with the first single-way connector sleeving part (1111), and the body of the open end (212) is communicated with the outside.

10. The connection joint of the drainage tube according to claim 9, wherein the closed single-pass joint (22) comprises a second three-way connection end (221) and a closed end (222), the second three-way connection end (221) is sleeved with a second single-pass joint sleeving part (1131), and the closed end (222) is in a closed state.