A connection structure for medical gas pipeline

Abstract

The present invention relates to the technical field of pipeline connection, and proposes a connection structure of a medical gas pipeline, comprising a main pipeline, a connecting pipeline and a first valve, wherein the first valve is arranged at a node of the gas supply end of the main pipeline, and the first valve is used to control the opening and closing of the main pipeline, and the inner wall size of the input end of the main pipeline is adapted to the outer wall size of the connecting pipeline, and further comprises a plurality of groups of annular sealing pads and a plurality of groups of connecting sealing pads, wherein the interiors of the annular sealing pads and the connecting sealing pads are both cavity structures, and the plurality of groups of annular sealing pads are connected through the connecting sealing pads, and in the present invention, through the fixing method of the inflatable sealing pad, the frame-type sealing pad can be completely filled between the main pipeline and the connecting pipeline, and the connection position of the two is changed to a gap, so that the sealing speed is faster and the effect is better, and the installation method of the device is to directly dock the two groups of pipelines, and the installation process is more convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline connection, and in particular to a connection structure of a medical gas pipeline. Background Art

[0002] Medical gases refer specifically to gases used in medical treatment. Some are used directly for treatment, some are used for anesthesia, some are used to drive medical equipment and tools, and some are used for medical experiments and bacteria and embryo culture, etc. Commonly used gases are oxygen, nitrous oxide, carbon dioxide, argon, helium, nitrogen and compressed air, or their mixtures.

[0003] Existing medical pipeline connections, such as the connection between the gas supply center and external equipment, are connected by threaded fixing. The fixing process requires the two sets of sealing rings of the threaded block to be contacted and squeezed to complete the seal between the pipelines. This connection method requires manual use of a lot of force to complete the fit of the sealing gasket contact. In the process of twisting the threaded block, the sealing gasket may be offset, causing the sealing gasket contact to not be completely fitted, resulting in an insufficient connection. Summary of the invention

[0004] The invention provides a connection structure of a medical gas pipeline.

[0005] The technical solution of the present invention is as follows:

[0006] A connection structure for a medical gas pipeline, comprising a main pipeline, a connecting pipeline and a first valve, wherein the first valve is arranged at a node of a gas supply end of the main pipeline, the first valve is used to control the opening and closing of the main pipeline, the inner wall size of the input end of the main pipeline is adapted to the outer wall size of the connecting pipeline, and the structure further comprises a plurality of groups of annular sealing pads and a plurality of groups of connecting sealing pads, the interiors of the annular sealing pads and the connecting sealing pads are both cavity structures, the plurality of groups of annular sealing pads are connected through the connecting sealing pads, the annular sealing pads and the connecting sealing pads are fixed to the inner wall of the input end of the main pipeline, the output end surface of the connecting pipeline is provided with a plurality of groups of grooves, the annular sealing pads and the connecting sealing pads are inflated to form a frame shape, the shape of the grooves is adapted to the frame shape, and a fitting pad that fits and is fixed to the grooves;

[0007] A connecting block is fixed on the surface of the main pipeline, a connecting cavity is provided on the inner wall of the connecting block, an input pipe is fixedly connected to the annular sealing gasket at one end, the input pipe is connected to one end of the connecting cavity, the other end of the connecting cavity is connected to the air supply of the main pipeline, a cavity opening and closing device is provided inside the connecting cavity, the cavity opening and closing device is used to open and close the connecting cavity, so that the annular sealing gasket and the connecting sealing gasket are inflated, and the cavity opening and closing device is used to discharge the gas inside the annular sealing gasket and the connecting sealing gasket;

[0008] A first connection block is fixed to the outer wall of the main pipeline, and a second connection block is fixed to the outer wall of the connecting pipeline. The first connection block and the second connection block are used to fix the main pipeline and the connecting pipeline.

[0009] Preferably, the cavity opening and closing device includes a first slider and a second slider, the surface of the connecting block is provided with a first sliding groove and a second sliding groove connected with the connecting cavity, a first spring is fixed inside the first sliding groove, the first slider is slidably connected to the inner wall of the first sliding groove through a sliding sealing gasket, the bottom of the first slider is connected to the first spring, and a first through groove adapted to the connecting cavity is penetrated on the surface of the first slider, when the first slider is not subjected to external force, the first slider blocks the connecting groove, when the first slider is subjected to external force, the first through groove is connected with the connecting cavity, a second spring is fixed on the inner wall of the second sliding groove, the inner wall of the second sliding groove is slidably connected with the second slider through a sliding sealing gasket, the second slider is slidably connected to the inner wall of the second sliding groove through a sliding sealing gasket, an external connecting cavity is provided inside the second slider, one end of the external connecting cavity is connected with the outside, when the second slider is not subjected to external force, the second through groove is connected with the connecting cavity, and when the second slider is subjected to external force, the other end of the external connecting cavity is connected with the input pipe.

[0010] Preferably, the number of second connecting blocks is several groups, the number of first connecting blocks is several groups, a cylindrical block and a square block are fixed at one end of the second connecting block, a cylindrical groove matching the cylindrical block is provided on the surface of the second connecting block, a square groove matching the square block is provided on the surface of the second connecting block, a clamping groove is provided on the surfaces of the cylindrical block and the square block, a pull block is slidably connected to the inner wall of the first connecting block, the pull block is connected to the first connecting block by a connecting spring, and a clamping block used in conjunction with the clamping groove is fixed to the bottom of the pull block.

[0011] Preferably, the first connecting block includes a bearing, which is rotatably connected to the outer wall of the main pipe, and a threaded mounting block is rotatably connected to the outer side of the bearing, and a fixed thread is provided on the inner wall of the threaded mounting block. The second connecting block includes a threaded block, and a threaded groove matching the fixed thread is provided on the outer wall of the threaded block.

[0012] Preferably, the first valve is a pin-type valve, the pin of the first valve is arranged on the inner wall of the main pipe, a collision block is fixed to the inner wall of the connecting pipe, and when the first connecting block and the second connecting block are connected, the collision block and the pin contact the pin-type valve port to open.

[0013] Preferably, a wheel block is fixed to the tail end of the ejector pin of the first valve, and the wheel block is rotatably connected to a rotating wheel through a bearing. The bottom of the first slider is arranged on the inner wall of the connecting cavity, and the bottom of the first slider is a triangular block, which contacts the rotating wheel. When the ejector pin moves toward the triangular block, the first connecting block rises and the connecting cavity opens.

[0014] Preferably, the first valve is an on-off valve.

[0015] The working principle and beneficial effects of the present invention are:

[0016] The inflatable sealing gasket is fixed in the present invention so that the frame-type sealing gasket can be completely filled between the main pipe and the connecting pipe, and the connection position between the two is changed to the gap, so that the sealing speed is faster and the effect is better. Compared with the existing traditional sealing gasket extrusion sealing method, the traditional pipe connection method requires manual screwing of the threaded head, and the sealing gasket will not be affected by the rotational friction force during the installation process, and the cushion sealing gasket will not be tilted during the connection process of the sealing gasket. In addition, the installation method of the device is to directly dock the two groups of pipes, so the installation process is more convenient. After the docking is completed, the sealing gasket and the fitting gasket at the groove are completely filled, and the sealing effect is better. The device is plug-and-play, and it is quick and convenient to use and install. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the split structure of the main pipeline and the connecting pipeline of the present invention;

[0020] Figure 3 It is a schematic diagram of the connecting pipeline structure of the present invention;

[0021] Figure 4 It is a schematic diagram of the main pipeline structure of the present invention;

[0022] Figure 5 It is a schematic diagram of the structure of the connected block of the present invention;

[0023] Figure 6 It is a schematic diagram of the structure of the second sliding block of the present invention;

[0024] Figure 7 It is a schematic diagram of the structure of the connecting block, the annular sealing gasket and the connecting sealing gasket of the present invention;

[0025] Figure 8 It is a schematic diagram of the structure of the connecting block and the first valve of the present invention;

[0026] Fig. 9 It is a schematic diagram of the pull block structure of the present invention.

[0027] In the figure: 1. main pipeline; 2. connecting pipeline; 3. first valve; 4. annular sealing gasket; 5. connecting sealing gasket; 6. groove; 7. fitting gasket; 8. connecting block; 9. connecting cavity; 10. input pipe; 11. cavity opening and closing device; 12. first connecting block; 13. second connecting block; 14. first slider; 15. second slider; 16. first sliding groove; 17. second sliding groove; 18. first through groove; 19. second through groove; 20. external connecting cavity; 21. cylindrical block; 22. square block; 23. slot; 24. pull block; 25. clamping block; 26. wheel block; 27. rotating wheel; 28. triangular block. DETAILED DESCRIPTION

[0028] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Example 1: Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 7 As shown, this embodiment proposes a connection structure of a medical gas pipeline, including a main pipeline 1, a connecting pipeline 2 and a first valve 3, the first valve 3 is arranged at the node of the gas supply end of the main pipeline 1, the first valve 3 is used to control the opening and closing of the main pipeline 1, the inner wall size of the input end of the main pipeline 1 is adapted to the outer wall size of the connecting pipeline 2, and also includes a plurality of groups of annular sealing pads 4 and a plurality of groups of connecting sealing pads 5, the interiors of the annular sealing pads 4 and the connecting sealing pads 5 are both cavity structures, the plurality of groups of annular sealing pads 4 are connected through the connecting sealing pads 5, the annular sealing pads 4 and the connecting sealing pads 5 are fixed to the inner wall of the input end of the main pipeline 1, the output end surface of the connecting pipeline 2 is provided with a plurality of groups of grooves 6, the annular sealing pads 4 and the connecting sealing pads 5 are inflated to form a frame shape, the shape of the grooves 6 is adapted to the frame shape, a fitting pad 7 fixed thereto is fixed at the grooves 6, and the sealing pads designed horizontally and vertically increase the stability between the sealing pads;

[0030] like Figure 1 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8As shown, a connecting block 8 is fixed on the surface of the main pipeline 1, and a connecting cavity 9 is opened on the inner wall of the connecting block 8. An input pipe 10 is fixedly connected to the annular sealing gasket 4 at one end, and the input pipe 10 is connected to one end of the connecting cavity 9. The other end of the connecting cavity 9 is connected to the air supply of the main pipeline 1. A cavity opening and closing device 11 is arranged inside the connecting cavity 9. The cavity opening and closing device 11 is used to open and close the connecting cavity 9, so that the annular sealing gasket 4 and the connecting sealing gasket 5 are inflated. The cavity opening and closing device 11 is used to discharge the gas inside the annular sealing gasket 4 and the connecting sealing gasket 5;

[0031] like Figure 1 , Figure 2 , Figure 3 and Fig. 9 As shown, a first connecting block 12 is fixed to the outer wall of the main pipe 1, and a second connecting block 13 is fixed to the outer wall of the connecting pipe 2. The first connecting block 12 and the second connecting block 13 are used to fix the main pipe 1 and the connecting pipe 2. When the input end of the main pipe 1 is connected to the output end of the connecting pipe 2, the first connecting block 12 and the second connecting block 13 are fixed until the connecting end of the second connecting block 13 is connected to the position of the first connecting block 12, that is, the sealing of the main pipe 1 and the connecting pipe 2 is completed. When the connecting end of the second connecting block 13 moves to the position of the first connecting block 12, the annular sealing gasket 4 and the connecting sealing gasket 5 of the main pipe 1 move to the groove 6 of the connecting pipe 2, and by supplying air to the input end of the connecting cavity 9, the inside of the annular sealing gasket 4 and the connecting sealing gasket 5 are inflated, and the annular sealing gasket 4 and the connecting sealing gasket 5 are completely fitted with the groove 6 of the connecting pipe 2, so that the main pipe 1 and the connecting pipe 2 are sealed.

[0032] like Figure 2 , Figure 5 , Figure 6 and Figure 8As shown, the cavity opening and closing device 11 includes a first slider 14 and a second slider 15. The surface of the connecting block 8 is provided with a first sliding groove 16 and a second sliding groove 17 connected to the connecting cavity 9. A first spring is fixed inside the first sliding groove 16. The first slider 14 is slidably connected to the inner wall of the first sliding groove 16 through a sliding sealing gasket. The bottom of the first slider 14 is connected to the first spring. A first through groove 18 adapted to the connecting cavity 9 is penetrated and opened on the surface of the first slider 14. When the first slider 14 is not subjected to external force, the first slider 14 blocks the connecting groove. When the first slider 14 is subjected to external force, the first through groove 18 is connected to the connecting cavity 9. A second spring is fixed to the inner wall of the second sliding groove 17. The inner wall of the second sliding groove 17 is slidably connected to the second slider 15 through a sliding sealing gasket. The second slider 15 is connected to the inner wall of the second sliding groove 17 through a sliding sealing gasket. The wall is connected by sliding, and an external connection cavity 20 is opened inside the second slider 15, and one end of the external connection cavity 20 is connected to the outside. When the second slider 15 is not subjected to external force, the second through groove 19 is connected to the connecting cavity 9. When the second slider 15 is subjected to external force, the other end of the external connection cavity 20 is connected to the input pipe 10. After the first connecting block 12 and the second connecting block 13 are fixed, the first through groove 18 is connected to the connecting cavity 9 by applying external force to the first slider 14, and the connecting cavity 9 inflates the annular sealing gasket 4 and the connecting sealing gasket 5 to expand them to the groove 6 of the connecting pipe, and the main pipeline 1 and the connecting pipeline 2 are sealed. When deflation is required, external force is applied to the second slider 15, and the external connection cavity 20 is connected to the input pipe 10, and the internal gas of the annular sealing gasket 4 and the connecting sealing gasket 5 flows out. At this time, the main pipeline 1 and the connecting pipeline 2 can be separated.

[0033] like Figure 1 , Figure 2 , Figure 3 and Fig. 9 As shown, the number of the second connecting blocks 13 is several groups, the number of the first connecting blocks 12 is several groups, a cylindrical block 21 and a square block 22 are fixed to one end of the second connecting block 13, a cylindrical groove matching the cylindrical block 21 is opened on the surface of the second connecting block 13, a square groove matching the square block 22 is opened on the surface of the second connecting block 13, a clamping groove 23 is opened on the surface of the cylindrical block 21 and the square block 22, and a pull block 24 is slidably connected to the inner wall of the first connecting block 12, and the pull block 24 is connected to the first connecting block 12. The pull block 24 is connected by a connecting spring, and a block 25 used in conjunction with the slot 23 is fixed at the bottom. The first connecting block 12 and the second connecting block 13 are contact-engaged and fixed. When the slot 23 of the cylindrical block 21 and the square block 22 of the second connecting block 13 move to the block 25 of the first connecting block 12, the first connecting block 12 and the second connecting block 13 are engaged and fixed. When the two need to be separated, the pull block 24 is pulled up to disengage the block 25 from the slot 23, thereby completing the separation of the main pipe 1 and the connecting pipe 2.

[0034] like Figure 5~Figure 8 As shown, the first valve 3 is a thimble valve, the thimble of the first valve 3 is arranged on the inner wall of the main pipe 1, and a collision block is fixed on the inner wall of the connecting pipe 2, and the collision block is elastic. When the first connecting block 12 and the second connecting block 13 are connected, the collision block and the thimble contact the valve port of the thimble valve to open. After the switch of the thimble valve is turned on, the collision block holds the thimble, and the double-layer sealing gasket behind the thimble is detached, that is, the thimble valve opening is opened for ventilation.

[0035] like Figure 5~Figure 8 As shown, a wheel block 26 is fixed to the tail end of the ejector pin of the first valve 3, and the wheel block 26 is rotatably connected to a rotating wheel 27 through a bearing. The bottom of the first slider 14 is arranged on the inner wall of the connecting chamber 9, and the bottom of the first slider 14 is a triangular block 28, which contacts the rotating wheel 27. When the ejector pin moves toward the triangular block 28, the first slider 14 rises, and the connecting chamber 9 opens. The opening process of the ejector pin valve is that the triangular block 28 just contacts the rotating wheel 27, and the connecting chamber 9 first opens to supply air to the annular sealing gasket 4 and the connecting sealing gasket 5, until it moves to a stroke and the first connecting block 12 and the second connecting block 13 are fixed, and then the ejector pin valve opens, and the main pipeline 1 and the connecting pipeline 2 are connected.

[0036] In this embodiment, if Figure 1 to Figure 9 As shown, when the main pipeline 1 and the connecting pipeline 2 need to be connected, the square block 22 is directly aligned with the square groove, the circular block is aligned with the circular groove, the position of the connecting pipeline 2 is moved to the position of the main pipeline 1, and the block 25 at the main pipeline 1 is fixed with the groove 23 at the connecting pipeline 2. In the process that the first connecting block 12 and the second connecting block 13 are about to be fixed, the ejector pin of the first valve 3 moves, the rotating wheel 27 moves backward, the first slider 14 rises, the connecting chamber 9 is opened, the main pipeline 1 is connected with the input pipe 10, the annular sealing gasket 4 and the connecting sealing gasket 5 are ventilated, the main pipeline 1 and the connecting pipeline 2 are first sealed, until the block 25 and the groove 23 are fixed, the ejector pin valve is opened, and the main pipeline 1 and the connecting pipeline are sealed. When the connection between pipe 2 is completed and the device needs to be disassembled, press the first slider 14 and pull up the second slider 15 to discharge the gas inside the annular sealing gasket 4 and the connecting sealing gasket 5, and then engage the contact block 25 to complete the disassembly of the connecting pipe 2 and the main pipe 1. The fixing method of the inflatable sealing gasket is different from the existing traditional sealing gasket extrusion sealing method. The traditional pipe connection method requires manual screwing of the threaded head, and the sealing gasket will not be affected by the rotational friction during the installation process. The installation method of the device is to directly dock the two sets of pipes, and the installation process is more convenient. After the docking is completed, the sealing gasket and the fitting pad 7 at the groove 6 are fully filled, and the sealing effect is better. The device is plug-and-play, and it is quick and convenient to use and install.

[0037] Embodiment 2: The first connecting block 12 includes a bearing, which is rotatably connected to the outer wall of the main pipe 1, and a threaded mounting block is rotatably connected to the outer side of the bearing, and a fixed thread is provided on the inner wall of the threaded mounting block. The second connecting block 13 includes a threaded block, and a threaded groove matching the fixed thread is provided on the outer wall of the threaded block. The main pipe 1 and the connecting pipe 2 are connected by means of fixed threads and threaded blocks.

[0038] The first valve 3 is an on-off valve.

[0039] In this embodiment, a threaded fixed installation method is used, and the main pipe 1 and the connecting pipe 2 are connected by thread. After the device is connected, the first slider 14 is manually pulled, the connecting cavity 9 is connected, and the annular sealing gasket 4 and the connecting sealing gasket 5 are filled at the fitting pad 7 of the groove 6, that is, the connection between the pipes is completed.

[0040] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A connection structure for medical gas pipelines, characterized in that: The invention comprises a main pipeline (1), a connecting pipeline (2) and a first valve (3), wherein the first valve (3) is arranged at a node of the gas supply end of the main pipeline (1), and the first valve (3) is used to control the opening and closing of the main pipeline (1). The inner wall size of the input end of the main pipeline (1) is matched with the outer wall size of the connecting pipeline (2). The invention also comprises a plurality of groups of annular sealing pads (4) and a plurality of groups of connecting sealing pads (5), wherein the inside of the annular sealing pads (4) and the connecting sealing pads (5) are both hollow structures, and the plurality of groups of annular sealing pads (4) are connected through the connecting sealing pads (5). The annular sealing pads (4) and the connecting sealing pads (5) are fixed to the inner wall of the input end of the main pipeline (1), and the surface of the output end of the connecting pipeline (2) is provided with a plurality of groups of grooves (6). The annular sealing pads (4) and the connecting sealing pads (5) are formed into a frame shape after being inflated, and the shape of the grooves (6) is matched with the frame shape. A fitting pad (7) is fixed to the grooves (6) and is fitted and fixed thereto. A connecting block (8) is fixed on the surface of the main pipeline (1), a connecting cavity (9) is provided on the inner wall of the connecting block (8), an annular sealing gasket (4) at one end is fixedly connected to an input pipe (10), the input pipe (10) is connected to one end of the connecting cavity (9), the other end of the connecting cavity (9) is connected to the air supply of the main pipeline (1), a cavity opening and closing device (11) is provided inside the connecting cavity (9), the cavity opening and closing device (11) is used to open and close the connecting cavity (9), so that the annular sealing gasket (4) and the connecting sealing gasket (5) are inflated, and the cavity opening and closing device (11) is used to discharge the gas inside the annular sealing gasket (4) and the connecting sealing gasket (5); A first connection block (12) is fixed to the outer wall of the main pipeline (1), and a second connection block (13) is fixed to the outer wall of the connecting pipeline (2), the first connection block (12) and the second connection block (13) being used to fix the main pipeline (1) and the connecting pipeline (2); The cavity opening and closing device (11) comprises a first slider (14) and a second slider (15); a first sliding groove (16) and a second sliding groove (17) communicating with the communicating cavity (9) are provided on the surface of the communicating block (8); a first spring is fixed inside the first sliding groove (16); the first slider (14) is slidably connected to the inner wall of the first sliding groove (16) via a sliding sealing gasket; the bottom of the first slider (14) is connected to the first spring; a first through groove (18) matching the communicating cavity (9) is provided through the surface of the first slider (14); when the first slider (14) is not subjected to external force, the first slider (14) blocks the communicating groove; when the first slider (14) is subjected to external force In this case, the first through groove (18) is connected to the connecting cavity (9), a second spring is fixed to the inner wall of the second sliding groove (17), the inner wall of the second sliding groove (17) is slidably connected to the second slider (15) via a sliding sealing gasket, the second slider (15) is slidably connected to the inner wall of the second sliding groove (17) via a sliding sealing gasket, an external connecting cavity (20) is provided inside the second slider (15), one end of the external connecting cavity (20) is connected to the outside, when the second slider (15) is not subjected to external force, the second through groove (19) is connected to the connecting cavity (9), and when the second slider (15) is subjected to external force, the other end of the external connecting cavity (20) is connected to the input pipe (10).

2. A medical gas pipeline connection structure according to claim 1, characterized in that: The number of the second connection blocks (13) is several groups, the number of the first connection blocks (12) is several groups, a cylindrical block (21) and a square block (22) are fixed to one end of the second connection block (13), a cylindrical groove matching the cylindrical block (21) is provided on the surface of the second connection block (13), a square groove matching the square block (22) is provided on the surface of the second connection block (13), a clamping groove (23) is provided on the surfaces of the cylindrical block (21) and the square block (22), a pulling block (24) is slidably connected to the inner wall of the first connection block (12), the pulling block (24) is connected to the first connection block (12) via a connecting spring, and a clamping block (25) used in conjunction with the clamping groove (23) is fixed to the bottom of the pulling block (24).

3. The connection structure of a medical gas pipeline according to claim 1, characterized in that: The first connection block (12) comprises a bearing, the bearing being rotatably connected to the outer wall of the main pipe (1), a threaded mounting block being rotatably connected to the outer side of the bearing, the inner wall of the threaded mounting block being provided with a fixed thread, and the second connection block (13) comprises a threaded block, the outer wall of the threaded block being provided with a threaded groove matching the fixed thread.

4. The medical gas pipeline connection structure according to claim 1, characterized in that: The first valve (3) is a pin-type valve, the pin of the first valve (3) is arranged on the inner wall of the main pipe (1), a collision block is fixed on the inner wall of the connecting pipe (2), and when the first connecting block (12) and the second connecting block (13) are connected, the collision block and the pin contact the pin-type valve port and the valve port is opened.

5. A medical gas pipeline connection structure according to claim 4, characterized in that: A wheel block (26) is fixed to the tail end of the ejector pin of the first valve (3), and the wheel block (26) is rotatably connected to a rotating wheel (27) via a bearing. The bottom of the first slider (14) is arranged on the inner wall of the connecting chamber (9), and the bottom of the first slider (14) is a triangular block (28). The triangular block (28) is in contact with the rotating wheel (27). When the ejector pin moves toward the triangular block (28), the first slider (14) rises and the connecting chamber (9) opens.

6. The medical gas pipeline connection structure according to claim 1, characterized in that: The first valve (3) is an on-off valve.

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