T-shaped connector for breathing pipeline

Abstract

The utility model discloses a breathing pipeline T-shaped connector and belongs to the technical field of medical equipment parts. Comprising a connector body, the left end and the right end of the connector body are provided with a first connector and a second connector respectively, the bottom end and the top end of the connector body are provided with a third connector and a fourth connector respectively, a branch pipe connector is inserted into the fourth connector, and a sealing structure is arranged between the branch pipe connector and the fourth connector. The sealing structure comprises a first clamping groove, a second clamping groove, a third clamping groove, a first boss, a second boss and a third boss, the first clamping groove, the second clamping groove and the third clamping groove are formed in the inner wall of the fourth connector, and the first boss, the second boss and the third boss are arranged on the outer wall of the branch pipe connector. A limiting boss is arranged at the position adjacent to the glue groove. According to the T-shaped connector, sealing of the fourth connector and the branch pipe connector is achieved through the sealing structure, installation of the breathing hose and the connector body is facilitated through the guide inclined face, and the sealing effect and sealing efficiency between the breathing hose and the connector body can be improved through the limiting boss.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment parts, and in particular relates to a T-shaped joint for a breathing tube. Background Art

[0002] Respiratory systems are important medical devices that provide patients with oxygen or anesthetic gases. They typically consist of a respiratory mask, a ventilator (such as an oxygen supply or an anesthesia machine), and a central branch pipe connecting the mask and ventilator. In the prior art, the central branch pipe is connected to the respiratory mask and ventilator using connectors, which come in two types: straight connectors and T-type connectors. However, existing T-type connectors have the following drawbacks:

[0003] 1. When the T-type connector is connected to the hose connector for sampling the patient's exhaled gas, a sealing ring is used to seal the connection between the two. The sealing ring increases the difficulty of installation when connecting the hose connector and the T-type connector, and the sealing ring is prone to aging, increasing the risk of air leakage at the connection.

[0004] 2. When connecting the T-type connector to the breathing hose, one end of the T-type connector needs to be plugged into one end of the breathing hose. In order to reduce the risk of air leakage, the outer diameter of the connecting end of the T-type connector and the breathing hose is the same as the inner diameter of the breathing hose, so the installation is time-consuming and labor-intensive.

[0005] To this end, the applicant has conducted useful explorations and attempts and found a solution to the above-mentioned problem. The technical solution to be introduced below was produced in this context. Utility Model Content

[0006] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a T-shaped connector for a breathing tube.

[0007] The above-mentioned technical problems of the present invention are mainly solved by the following technical solutions: a T-shaped joint for a breathing tube, comprising a joint body, a first interface and a second interface respectively provided at both ends of the joint body, a third interface provided at the lower end of the joint body, a fourth interface provided at the top of the joint body, a separator provided near the first interface in the joint body, the separator divides the interior of the joint body into a gas channel 1 located above and a gas channel 2 located below, the first interface and the second interface being connected at both ends of the gas channel 1, the first interface and the third interface being connected at both ends of the gas channel 2, a branch pipe joint being plugged into the fourth interface, a sealing structure being provided between the branch pipe joint and the fourth interface, and the branch pipe joint being connected to the gas channel 2 through the fourth interface.

[0008] Preferably, the sealing structure includes a first card groove, a second card groove and a third card groove which are all annular and are opened on the inner wall of the fourth interface, and a first boss, a second boss and a third boss which are all annular and are arranged on the outer wall of the branch pipe joint. The third card groove is close to the fourth interface, the first card groove is close to the center of the joint body, the second card groove is located between the first card groove and the third card groove, the first boss is clamped in the first card groove, the second boss is clamped in the second card groove, and the third boss is clamped in the third card groove.

[0009] Preferably, a guiding slope for facilitating the installation of the breathing hose is provided on the outer side wall of the connector body at the first interface.

[0010] Preferably, glue grooves are provided on the outer wall of the connector body close to the first interface and the outer wall close to the third interface.

[0011] Preferably, a limiting boss for limiting the position of the breathing hose is provided on the outer wall of the connector body close to the first interface and the outer wall close to the third interface.

[0012] Preferably, a limiting step is provided on the inner wall of the connector body near the second interface.

[0013] The utility model has the beneficial effects:

[0014] Compared with the prior art, the present invention provides a first groove, a second groove and a third groove on the inner wall of the fourth interface, and arranges a first boss, a second boss and a third boss on the outer wall of the branch pipe joint. The branch pipe joint and the fourth interface are installed by engaging the first boss and the first groove, the second groove and the second boss, and the third boss and the third groove. At the same time, the branch pipe joint and the fourth interface are sealed by engaging the first groove, the second groove and the third groove with the first boss, the second boss and the third boss respectively. The sealing effect can be achieved without adding an additional sealing ring, avoiding the risk of air leakage due to aging of the sealing ring due to the aging of its material; the installation of the breathing hose and the connector body is facilitated by providing a guide inclined surface on one end of the connector body located at the first interface. The setting of the limiting boss can limit the breathing hose when the breathing hose is installed, and can block the glue applied on the inner wall of the breathing hose in the glue groove after cooperating with the glue groove, avoiding glue overflow and contamination of the accessories. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0017] Figure 3 yes Figure 2A magnified schematic diagram of point A in the middle;

[0018] Figure 4 It is a schematic diagram of the exploded structure of the joint body and branch pipe joint.

[0019] In the figure: 1. Connector body; 2. First interface; 3. Second interface; 4. Third interface; 5. Fourth interface; 6. Separator; 7. Gas channel 2; 8. Gas channel 1; 9. Branch pipe connector; 10. First slot; 11. Second slot; 12. Third slot; 13. First boss; 14. Second boss; 15. Third boss; 16. Guide slope; 17. Glue groove; 18. Limit boss; 19. Limit step. DETAILED DESCRIPTION

[0020] Below by embodiment, and in conjunction with the accompanying Figures 1-4 The structure is shown in the figure, and the technical solution of the utility model is further described in detail.

[0021] Example: A breathing tube T-joint, with a first interface 2 and a second interface 3 respectively provided at both ends of the joint body 1, a third interface 4 provided at the lower end of the joint body 1, and a fourth interface 5 provided at the top of the joint body 1. A separator 6 is provided near the first interface 2 inside the joint body 1. The separator 6 separates the interior of the joint body 1 into a gas channel 1 8 located at the top and a gas channel 2 7 located at the bottom. The two ends of the gas channel 1 8 are connected to the first interface 2 and the second interface 3, and the two ends of the gas channel 2 7 are connected to the first interface 2 and the third interface 4. A branch pipe joint is plugged into the fourth interface 5 9. A sealing structure is provided between the branch pipe joint 9 and the fourth interface 5, and the branch pipe joint 9 is connected to the gas channel 1 8 through the fourth interface 5; a guide slope 16 is provided on the outer wall of the joint body 1 located at the first interface 2, and a glue groove 17 is provided on the outer wall of the joint body 1 near the first interface 2 and the outer wall near the third interface 4. A limiting boss 18 for limiting the breathing hose is provided on the outer wall of the joint body 1 near the first interface 2 and the outer wall near the third interface 4, and a limiting step 19 is provided on the inner wall of the joint body 1 near the third interface.

[0022] Specifically, the connector body 1 is a hollow T-shaped tube, and the first interface 2 is divided into an upper interface and a lower interface. A gap is left between the upper interface and the lower interface for the separation membrane inside the breathing hose to be inserted into the gap when the breathing hose is plugged into the connector body 1. The two ends of the gas channel 1 8 are respectively connected to the upper interface of the first interface 2 and the second interface 3, and the two ends of the gas channel 2 7 are respectively connected to the lower interface of the first interface 2 and the third interface 4; Figure 4As shown, the fourth interface 5 at the top of the connector body 1 forms a certain inclined angle with the connector body 1, the outer diameter of the branch pipe connector 9 is slightly smaller than the inner diameter of the fourth interface 5, and the fourth interface 5 and the branch pipe connector 9 are connected by plugging when in use; the sealing structure between the branch pipe connector 9 and the fourth interface 5 includes a first boss 13, a second boss 14 and a third boss 15 provided on the outer wall of the branch pipe connector 9 and a first card groove 10, a second card groove 11 and a third card groove 12 provided on the inner wall of the fourth interface 5, the size of the first boss 13 is the same as the first card groove 10, the size of the second boss 14 is the same as the second card groove 11, the size of the third boss 15 is the same as the third card groove 12, and the size relationship of the three card grooves is: first card groove 10 < second card groove 11 < third card groove 12, combined with Figure 3 As shown, when the branch pipe joint 9 is inserted into the fourth interface 5, the first boss 13 can pass through the third card groove 12 and the second card groove 11 in sequence and then engage in the first card groove 10, the second boss 14 passes through the third card groove 12 and then engages in the second card groove 11, and the third boss 15 engages in the third card groove 12, thereby completing the installation of the branch pipe joint 9 in the fourth interface 5. At the same time, the sealing at the interface is achieved by relying on the engagement of the first card groove 10, the second card groove 11 and the third card groove 12 with the first boss 13, the second boss 14 and the third boss 15, and the sealing effect can be achieved without the use of an additional sealing ring, thereby avoiding the problem of reduced sealing performance due to aging of the sealing ring due to the aging of its material.

[0023] A guide bevel 16 is provided on one end of the connector body 1 located at the first interface 2. The guide bevel 16 is inclined from low to high along the first interface 2 toward the center of the connector body 1, so that the diameter of the end of the connector body located at one end of the first interface 2 is smaller than the inner diameter of the breathing hose, making it easier for the breathing hose to be plugged into the connector body 1 during installation.

[0024] Annular glue grooves 17 are provided on the outer wall of the connector body 1 on one side close to the first interface 2 and on the side close to the third interface 4. A limiting boss 18 is provided on one side of the two glue grooves 17 on the outer wall of the connector body 1, and the diameter of the limiting boss 18 is larger than the tube diameter of the connector body 1. The provision of the limiting boss 18 has the following advantages: first, the sealing mode of the connection between the connector body 1 and the breathing hose is changed from surface sealing to line sealing (specifically, after the connector body 1 is plugged into the breathing hose, the end of the breathing hose rests on the limiting boss 18, and a sealing sleeve with high elasticity is sleeved at the abutment point of the limiting boss 18 of the connector body 1 and the breathing hose. After the sealing sleeve is installed, the limiting boss 18 of the connector body 1 and the abutment point of the breathing hose are tightly sealed by its own high elastic force), which can improve the sealing efficiency. Second, the diameter of the limiting boss 18 is larger than the diameter of the connector body 1, thereby ensuring the sealing effect. Third, the limiting boss 18 limits the breathing hose when it is plugged in, and then combined with Figure 2As shown, the limiting boss 18 can block the glue coated on the inner wall of the breathing hose in the glue groove 17 to prevent the glue from overflowing and contaminating the connector body 1 and the breathing hose.

[0025] A limiting step 19 is provided on one side of the inner wall of the connector body 1 close to the second interface 3 , which serves as a limiting step when the connector body 1 is mounted on the ventilator during use.

[0026] Finally, it should be noted that the above embodiments are merely representative examples of the present invention. Obviously, the present invention is not limited to the above embodiments and is susceptible to numerous variations. Any simple modifications, equivalent variations, and modifications to the above embodiments based on the technical essence of the present invention shall be deemed to fall within the scope of protection of the present invention.

Claims

1. A breathing tube T-connector, characterized by: The invention comprises a joint body (1), wherein the two ends of the joint body (1) are respectively provided with a first interface (2) and a second interface (3), the lower end of the joint body (1) is provided with a third interface (4), the top of the joint body (1) is provided with a fourth interface (5), a separator (6) is provided in the joint body (1) near the first interface (2), the separator (6) separates the interior of the joint body (1) into a gas channel 1 (7) located above and a gas channel 2 (8) located below, the two ends of the gas channel 1 (7) are connected to the first interface (2) and the second interface (3), the two ends of the gas channel 2 (8) are connected to the first interface (2) and the third interface (4), a branch pipe joint (9) is plugged into the fourth interface (5), a sealing structure is provided between the branch pipe joint (9) and the fourth interface (5), and the branch pipe joint (9) is connected to the gas channel 2 (8) through the fourth interface (5).

2. A breathing tube T-connector according to claim 1, characterized in that: The sealing structure comprises a first card groove (10), a second card groove (11) and a third card groove (12) which are all annular and are opened on the inner wall of the fourth interface (5), and a first boss (13), a second boss (14) and a third boss (15) which are all annular and are opened on the outer wall of the branch pipe joint (9), wherein the third card groove (12) is close to the fourth interface (5), the first card groove (10) is close to the center of the joint body (1), the second card groove (11) is located between the first card groove (10) and the third card groove (12), the first boss (13) is clamped in the first card groove (10), the second boss (14) is clamped in the second card groove (11), and the third boss (15) is clamped in the third card groove (12).

3. The breathing tube T-connector according to claim 1, characterized in that: A guiding slope (16) for facilitating the installation of a medical hose is provided on the outer side wall of the connector body (1) at the first interface (2).

4. A breathing tube T-connector according to claim 1, characterized in that: Glue grooves (17) are provided on the outer wall of the joint body (1) close to the first interface (2) and the outer wall close to the third interface (4).

5. A breathing tube T-connector according to claim 4, characterized in that: A limiting boss (18) for limiting the position of the breathing hose is provided on the outer wall of the connector body (1) close to the first interface (2) and the outer wall close to the third interface (4).

6. The breathing tube T-connector according to claim 1, characterized in that: A limiting step (19) is provided on the inner wall of the joint body (1) near the second interface (3).

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