Carbon dioxide absorption tank and anesthesia machine

Abstract

The embodiment of the utility model provides a carbon dioxide absorption tank and an anaesthesia machine, which can optimize the drainage operation of the carbon dioxide absorption tank and prevent an operator from being wetted by water discharged from the carbon dioxide absorption tank. The carbon dioxide absorption tank comprises a tank body, the tank body is provided with a water storage cavity, a drainage hole and a mounting hole are formed in the inner wall of the water storage cavity, and a drainage mechanism is arranged in the water storage cavity; the water drainage mechanism comprises a water drainage button and a blocking piece, the water drainage button is movably connected into the mounting hole, the blocking piece is movably arranged in the water storage cavity and connected to the water drainage button, a plug is arranged on the blocking piece, the plug is configured to block the water drainage hole, and the water drainage button is movably connected into the mounting hole. The drainage button is configured to push and abut against the plugging piece so that the plug can release the drainage hole.

Description

Technical Field

[0001] The present application relates to the technical field of medical equipment, and in particular to a carbon dioxide absorption tank and an anesthesia machine. Background Art

[0002] In existing anesthesia machines, a carbon dioxide absorption tank is usually configured to absorb the carbon dioxide exhaled by the patient and prevent the exhaled carbon dioxide from being re-inhaled by the patient. The carbon dioxide exhaled by the patient will carry water vapor. When the substances in the carbon dioxide absorption tank absorb the carbon dioxide, the water vapor will condense in the carbon dioxide absorption tank and gather at the bottom of the carbon dioxide absorption tank. However, the drainage hole at the bottom of the existing carbon dioxide absorption tank is usually blocked with a plug. When the carbon dioxide absorption tank is drained, the plug needs to be pulled out manually, which makes it very easy for the operator to get wet by the discharged water. Utility Model Content

[0003] The embodiments of the present application provide a carbon dioxide absorption tank and anesthesia machine, which can optimize the drainage operation of the carbon dioxide absorption tank and prevent operators from getting wet by water discharged from the carbon dioxide absorption tank.

[0004] In a first aspect, the present application provides a carbon dioxide absorption tank. The carbon dioxide absorption tank comprises a tank body, the tank body has a water storage cavity, the inner wall of the water storage cavity is provided with a drainage hole and a mounting hole, the water storage cavity is provided with a drainage mechanism; the drainage mechanism comprises a drainage button and a plugging member, the drainage button is movably connected in the mounting hole, the plugging member is movably arranged in the water storage cavity, and the plugging member is connected to the drainage button, a plugging head is provided on the plugging member, the plugging head is configured to block the drainage hole, and the drainage button is configured to push against the plugging member so that the plugging head releases the drainage hole.

[0005] In a possible implementation manner, one side of the blocking member is rotatably connected to the inner wall of the water storage chamber, and the other side of the blocking member is connected to the drainage button.

[0006] In a possible implementation manner, a fixing piece is provided on the inner wall of the water storage chamber, and the blocking piece is rotatably connected to the fixing piece; and the plug is located between the fixing piece and the drainage button.

[0007] In a possible implementation manner, the drainage hole is located on the bottom wall of the tank body; and the mounting hole is located on the bottom wall or the side wall of the tank body.

[0008] In a possible implementation, the drainage mechanism further includes a first seal and a second seal, wherein the first seal is located between the drainage button and the mounting hole, and the second seal is configured to seal a gap between the plug and the drainage hole when the plug blocks the drainage hole.

[0009] In a possible implementation, the drainage hole includes a first sub-hole and a second sub-hole that are connected, the second sub-hole is located on a side of the first sub-hole away from the water storage chamber, and the aperture of the first sub-hole gradually increases from the second sub-hole to the first sub-hole.

[0010] In a possible implementation, the drain button includes a main body portion and a push portion that are connected, the main body portion is inserted through the mounting hole, the push portion is located in the water storage cavity, and the blocking member is connected to the push portion.

[0011] In a possible implementation manner, the pushing portion is a limiting groove, and one side of the blocking member is connected to the limiting groove.

[0012] In a possible embodiment, the drainage mechanism also includes an elastic member, and the main body is provided with a receiving groove at one end of the water storage cavity, one end of the elastic member is installed in the receiving groove, and the other end of the elastic member extends out from the receiving groove and abuts against an inner wall of the water storage cavity that is arranged opposite to the mounting hole.

[0013] In a possible implementation, the inner wall of the water storage cavity is further provided with a guide groove, the guide groove and the mounting hole are respectively located on two opposite inner walls of the water storage cavity, and the main body is slidably connected in the guide groove and the mounting hole.

[0014] In a possible embodiment, the tank body includes a tank body and a base that are detachably connected, the tank body and the base enclose the water storage cavity, the tank body is provided with a receiving cavity, the bottom wall of the receiving cavity is provided with a plurality of through holes, and the through holes are configured to connect the receiving cavity and the water storage cavity.

[0015] In a second aspect, the present application also provides an anesthesia machine, comprising a main unit and a carbon dioxide absorption tank as described in any one of the above items, wherein the carbon dioxide absorption tank is installed on the main unit.

[0016] In the carbon dioxide absorption tank provided by the present application, a drainage mechanism is arranged in the water storage cavity of the tank body, and the drainage mechanism includes a drainage button and a plugging member. When the operator presses the drainage button, the plugging member can move under the drive of the drainage button, so that the plug arranged on the plugging member releases the drainage hole on the inner wall of the water storage cavity, so that the water in the water storage cavity flows out from the drainage hole. Under this arrangement, the operator can directly realize the drainage operation of the carbon dioxide absorption tank by pressing the drainage button, without having to pull out the plug blocking the drainage hole by hand, thereby optimizing the drainage operation of the carbon dioxide absorption tank and preventing the operator from being wetted by the water discharged from the carbon dioxide absorption tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be described below.

[0018] Figure 1 It is a structural schematic diagram of a carbon dioxide absorption tank of an anesthesia machine provided in an embodiment of the present application;

[0019] Figure 2 yes Figure 1 The cross-sectional structure diagram of the carbon dioxide drainage tank after being cut along AA;

[0020] Figure 3 yes Figure 2 A magnified schematic diagram of the middle B area;

[0021] Figure 4 yes Figure 1 The structural schematic diagram of the base in the carbon dioxide absorption tank shown;

[0022] Figure 5 yes Figure 4 The schematic diagram of the structure of the base after being cut open along CC;

[0023] Figure 6 yes Figure 1 The schematic diagram of the structure of the drainage mechanism and the fixing parts in the carbon dioxide absorption tank shown;

[0024] Figure 7 yes Figure 2 A magnified schematic diagram of region D in the middle. DETAILED DESCRIPTION

[0025] The specific implementation of the present application will be clearly described below in conjunction with the accompanying drawings.

[0026] Please refer to Figure 1 and Figure 2 , Figure 1 1 is a schematic structural diagram of a carbon dioxide absorption tank 100 of an anesthesia machine provided in an embodiment of the present application. Figure 2 yes Figure 1 The cross-sectional structure diagram of the carbon dioxide absorption tank 100 is shown after it is cut along AA. Herein, "cut along AA" means cutting along the plane where the AA line is located, and similar descriptions in the following text can be understood in the same way.

[0027] The embodiment of the present application provides an anesthesia machine (not shown). An anesthesia machine is a medical device specifically used for general anesthesia. The anesthesia machine can deliver anesthetics into the patient's alveoli through a mechanical circuit to form an anesthetic gas partial pressure. After the anesthetic diffuses into the blood, it directly inhibits the central nervous system, thereby producing the effect of general anesthesia.

[0028] In this embodiment, the anesthesia machine includes a main unit (not shown) and a carbon dioxide absorption tank 100, and the carbon dioxide absorption tank 100 is installed on the main unit. The carbon dioxide absorption tank 100 can absorb carbon dioxide gas to prevent the patient from repeatedly inhaling exhaled carbon dioxide, thereby preventing excessive accumulation of carbon dioxide from affecting the patient's breathing and blood circulation. The specific structure of the carbon dioxide absorption tank 100 will be described below.

[0029] In this embodiment, the carbon dioxide absorption tank 100 includes a tank body 110, a drainage mechanism 120 and a fixing member 130. The fixing member 130 is fixedly connected to the tank body 110. The drainage mechanism 120 is rotatably connected to the fixing member 130 to be assembled with the tank body 110. The tank body 110 has a water storage chamber 110a. The tank body 110 also includes a detachably connected tank body 10 and a base 20. The tank body 10 and the base 20 enclose a water storage chamber 110a.

[0030] Specifically, the tank body 10 is installed on the top of the base 20. The tank body 10 is provided with a receiving chamber 11. The opening of the receiving chamber 11 is located on the surface of the tank body 10 away from the base 20. The receiving chamber 11 is recessed from the surface of the tank body 10 away from the base 20 toward the base 20. The bottom wall of the receiving chamber 11 is provided with a plurality of through holes 12. The plurality of through holes 12 all penetrate the bottom wall of the receiving chamber 11 along the thickness direction of the bottom wall of the receiving chamber 11, and are arranged at intervals from each other. The through holes 12 are configured to connect the receiving chamber 11 and the water storage chamber 110a, so that the water vapor carried by the carbon dioxide exhaled by the patient can enter the water storage chamber 110a from the receiving chamber 11 to condense and converge, thereby facilitating the subsequent drainage operation of the carbon dioxide absorption tank 100.

[0031] Please refer to Figure 3 , Figure 4 and Figure 5 , Figure 3 yes Figure 2 The enlarged schematic diagram of area B in the middle. Figure 4 yes Figure 1 The structural schematic diagram of the base 20 in the carbon dioxide absorption tank 100 is shown. Figure 5 yes Figure 4 The shown structure is a schematic diagram of the base 20 after being cut open along CC.

[0032] In this embodiment, the tank body 110 is further provided with a drainage hole 111, a mounting hole 112 and a guide groove 113. Specifically, the inner wall of the water storage chamber 110a is provided with a drainage hole 111, a mounting hole 112 and a guide groove 113. Wherein, the drainage hole 111 and the mounting hole 112 are both located on the bottom wall of the tank body 110. Specifically, the mounting hole 112 and the drainage hole 111 are both provided on the base 20 of the tank body 110. The mounting hole 112 and the drainage hole 111 both penetrate the base 20 along the thickness direction of the base 20 and are arranged at intervals from each other. Wherein, the drainage hole 111 includes a first sub-hole 111a and a second sub-hole that are connected. Wherein, the second sub-hole 111b is located on the side of the first sub-hole 111a away from the water storage chamber 110a. In the direction from the second sub-hole 111b to the first sub-hole 111a, the aperture of the first sub-hole 111a gradually increases. The guide groove 113 and the mounting hole 112 are respectively located on two oppositely disposed inner walls of the water storage cavity 110a. Exemplarily, the opening of the guide groove 113 is located on the surface of the tank body 10 facing the base 20. The guide groove 113 is recessed from the surface of the tank body 10 facing the base 20 in a direction away from the base 20. In some other embodiments, the mounting hole 112 may also be located on the side wall of the tank body 110. In this case, the opening of the guide groove 113 is located on the side wall of the tank body 110 opposite to the mounting hole 112.

[0033] Please refer to Figure 2 , Figure 3 and Figure 6 , Figure 6 yes Figure 1 The structure diagram of the drainage mechanism 120 and the fixing member 130 in the carbon dioxide absorption tank 100 is shown.

[0034] In this embodiment, the fixing member 130 and the drainage mechanism 120 are both located in the water storage chamber 110a. The fixing member 130 is fixedly connected to the inner wall of the water storage chamber 110a. Specifically, the fixing member 130 is located on the side of the drainage hole 111 away from the mounting hole 112, and is connected to the bottom wall of the water storage chamber 110a.

[0035] The drainage mechanism 120 includes a drainage button 30, an elastic member 40, a first sealing member 50, a blocking member 60 and a second sealing member 70. The drainage button 30 is movably connected in the mounting hole 112 of the base 20. The drainage button 30 is configured to push the blocking member 60 so that the blocking member 60 releases the drainage hole 111. The blocking member 60 is movably arranged in the water storage chamber 110a, connected to the drainage button 30, and rotatably connected to the fixing member 130. The blocking member 60 can block the drainage hole 111, and can also release the drainage hole 111 under the pushing action of the drainage button 30. The first sealing member 50 is located between the drainage button 30 and the hole wall surface of the mounting hole 112. When the blocking member 60 blocks the drainage hole 111, the second sealing member 70 is clamped between the blocking member 60 and the hole wall surface of the drainage hole 111.

[0036] In this embodiment, the drain button 30 can move between a first position and a second position relative to the base 20 along the thickness direction of the base 20. The first position and the second position are different. The drain button 30 includes a main body 31 and a push portion 32 connected to each other. The main body 31 is inserted into the mounting hole 112, and the main body 31 is slidably connected in the guide groove 113 and the mounting hole 112. It can be understood that by sliding the main body 31 in the guide groove 113 and the mounting hole 112, it can be ensured that the drain button 30 always moves relative to the base 20 along the thickness direction of the base 20, avoiding the displacement of the drain button 30 during the movement, thereby helping to ensure the reliability of the use of the drain button 30.

[0037] A receiving groove 31a is provided at one end of the main body 31 located in the water storage chamber 110a. The opening of the receiving groove 31a is located on the surface of the main body 31 away from the bottom wall of the water storage chamber 110a. The receiving groove 31a is recessed from the surface of the main body 31 away from the bottom wall of the water storage chamber 110a toward the base 20. The main body 31 also includes a snap-on portion 311 and a pressing portion 312, and the pressing portion 312 is fixedly connected to the snap-on portion 311. The pressing portion 312 is penetrated through the mounting hole 112. The snap-on portion 311 is located in the water storage chamber 110a. When the drain button 30 is in the second position, the snap-on portion 311 can abut against the bottom wall of the water storage chamber 110a to prevent the drain button 30 from being in the relative position.

[0038] The push portion 32 is located in the water storage chamber 110a. Exemplarily, the push portion 32 is a limiting groove 32a. Specifically, the limiting groove 32a is provided in the clamping portion 311 of the main body 31. The opening of the limiting groove 32a is located on the outer peripheral surface of the clamping portion 311. The limiting groove 32a is recessed from the outer peripheral surface of the clamping portion 311 toward the inner peripheral surface. In this embodiment, the push portion 32 may include two skirts 321. Both skirts 321 are fixedly connected to the main body 31, and are both arranged around the circumference of the main body 31, and are both located in the water storage chamber 110a. Along the height direction of the carbon dioxide absorption tank 100, the two skirts 321 are spaced apart. Among them, the two skirts 321 are arranged to form the limiting groove 32a.

[0039] Please continue reading Figure 3 The elastic member 40 is installed in the receiving groove 31a of the drain button 30 and the guide groove 113 of the tank body 110. Specifically, one end of the elastic member 40 is installed in the receiving groove 31a. The other end of the elastic member 40 extends from the receiving groove 31a and abuts against the inner wall of the water storage cavity 110a that is arranged opposite to the mounting hole 112. Among them, the end of the elastic member 40 extending from the receiving groove 31a abuts against the bottom wall of the guide groove 113.

[0040] It is understandable that when the drain button 30 moves between the first position and the second position relative to the base 20 along the thickness direction of the base 20, the elastic member 40 can be compressed and generate elastic force, and the elastic feedback force generated by the elastic member 40 can provide a force for resetting the drain button 30. This setting can limit the elastic member 40 to prevent the elastic member 40 from tilting during compression and extension, thereby helping to ensure that the drain button 30 has better reliability in use.

[0041] In this embodiment, the first sealing member 50 is a sealing ring. The first sealing member 50 is sleeved on the drain button 30 and clamped between the drain button 30 and the hole wall of the mounting hole 112. Specifically, the first sealing member 50 is sleeved on the pressing portion 312 of the main body 31 and clamped between the pressing portion 312 and the hole wall of the mounting hole 112. It can be understood that when the drain button 30 moves between the first position and the second position relative to the base 20 along the thickness direction of the base 20, a gap is likely to appear between the drain button 30 and the hole wall of the mounting hole 112. By sleeved on the pressing portion 312 of the drain button 30, the gap between the pressing portion 312 of the drain button 30 and the hole wall of the mounting hole 112 can be filled, and the water in the water storage chamber 110a is prevented from flowing out through the gap between the pressing portion 312 of the drain button 30 and the hole wall of the mounting hole 112, thereby preventing the operator from getting his hands wet by the water in the water storage chamber 110a when pressing the drain button 30.

[0042] Please refer to Figure 2 , Figure 6 and Figure 7 , Figure 7 yes Figure 2 A magnified schematic diagram of region D in the middle.

[0043] In this embodiment, one side of the blocking member 60 is rotatably connected to the inner wall of the water storage chamber 110a, and the other side of the blocking member 60 is connected to the drain button 30. Specifically, one side of the blocking member 60 is rotatably connected to the fixing member 130 provided in the water storage chamber 110a, and the other side of the blocking member 60 is connected to the push portion 32 of the drain button 30. Exemplarily, the other side of the blocking member 60 is connected to the limiting groove 32a. In this embodiment, the blocking member 60 includes a free end 61 and a fixed end 62 that are arranged opposite to each other. Among them, the fixed end 62 is connected to the fixing member 130, and can rotate relative to the fixing member 130 around the thickness direction of the fixing member 130. The free end 61 is connected to the limiting groove 32a of the drain button 30, and moves relative to the bottom wall of the water storage chamber 110a along the thickness direction of the bottom wall of the water storage chamber 110a driven by the drain button 30.

[0044] The plugging member 60 is also provided with a plug 63, which is located between the fixing member 130 and the drain button 30. Specifically, the plug 63 is located between the fixed end 62 and the free end 61. The plug 63 is configured to block the drain hole 111. The plug 63 can also release the drain hole 111 under the push of the drain button 30, so that the carbon dioxide absorption tank 100 can realize the drainage function.

[0045] Specifically, when the drain button 30 is in the first position, the distance between the free end 61 and the bottom wall of the water storage chamber 110a along the height direction of the carbon dioxide absorption tank 100 is the first distance. At this time, the drain hole 111 connects the water storage chamber 110a and the external environment, so that the carbon dioxide absorption tank 100 can be drained. When the drain button 30 is in the second position, the distance between the free end 61 and the bottom wall of the water storage chamber 110a along the height direction of the carbon dioxide absorption tank 100 is the second distance. At this time, the plug 63 blocks the drain hole 111, and the carbon dioxide absorption tank 100 stops draining water into the external environment. Among them, the second distance is smaller than the first distance.

[0046] In this embodiment, when the operator presses the pressing portion 312 of the main body 31 of the drainage button 30, the drainage button 30 moves from the second position to the first position. At this time, the blocking member 60 rotates clockwise around the thickness direction of the fixing member 130 driven by the drainage button 30, and the plug 63 of the blocking member 60 releases the drainage hole 111, so that the water in the water storage chamber 110a of the carbon dioxide absorption tank 100 flows out, and the carbon dioxide absorption tank 100 achieves drainage. In this process, the elastic member 40 is compressed and generates elastic force. The elastic feedback force of the elastic member 40 acts on the main body 31 of the drainage button 30, so that the drainage button 30 returns from the first position to the second position. At this time, the blocking member 60 rotates counterclockwise around the thickness direction of the fixing member 130 driven by the drainage button 30, and the plug 63 of the blocking member 60 blocks the drainage hole 111, so that the carbon dioxide absorption tank 100 stops draining.

[0047] It can be understood that, during the movement of the drain button 30 from the second position to the first position, since the aperture of the first sub-hole 111a gradually increases, it is possible to prevent the plug 63 of the sealing member 60 from interfering with the hole wall of the first sub-hole 111a during the movement of releasing the drain hole 111, thereby allowing the water in the water storage chamber 110a to be smoothly discharged through the drain hole 111, thereby ensuring that the drainage mechanism 120 of the carbon dioxide absorption tank 100 has good reliability.

[0048] In some other embodiments, when the mounting hole 112 is located on the side wall of the tank body 110, the surface of the drain button 30 facing the blocking member 60 is a wedge-shaped surface. When the operator presses the drain button 30, the wedge-shaped surface of the drain button 30 abuts against the free end 61 of the blocking member 60. At this time, the free end 61 of the blocking member 60 moves along the wedge-shaped surface in a direction away from the bottom wall of the water storage chamber 110a, so that the plug 63 of the blocking member 60 releases the drain hole 111, thereby enabling the carbon dioxide absorption tank 100 to achieve drainage.

[0049] Please refer again Figure 3 and Figure 7 . In this embodiment, the second sealing member 70 is a sealing ring. The second sealing member 70 is configured to seal the gap between the plug 63 and the drainage hole 111 when the plug 63 blocks the drainage hole 111. In other words, the second sealing member 70 is sleeved on the plug 63. When the plug 63 blocks the drainage hole 111, the second sealing member 70 is clamped between the plug 63 and the hole wall of the first sub-hole 111a of the drainage hole 111. It can be understood that by sleeved on the plug 63 of the sealing member 60, the gap between the plug 63 and the hole wall of the first sub-hole 111a of the drainage hole 111 can be filled, and the water in the water storage chamber 110a is prevented from flowing out through the gap between the plug 63 and the hole wall of the first sub-hole 111a, so that the drainage hole 111 can be sealed and the carbon dioxide absorption tank 100 can be prevented from leaking.

[0050] In the carbon dioxide absorption tank 100 provided in the present application, a drainage mechanism 120 is provided in the water storage chamber 110a of the tank body 110, and the drainage mechanism 120 includes a drainage button 30 and a plugging member 60. When the operator presses the drainage button 30, the plugging member 60 can move under the drive of the drainage button 30, so that the plug 63 provided on the plugging member 60 releases the drainage hole 111 on the inner wall of the water storage chamber 110a, so that the water in the water storage chamber 110a flows out from the drainage hole 111. Under this setting, the operator can directly realize the drainage operation of the carbon dioxide absorption tank 100 by pressing the drainage button 30, without having to pull out the plug blocking the drainage hole 111 by hand, thereby preventing the operator from being wetted by the water discharged from the carbon dioxide absorption tank 100. In addition, by sleeved the first sealing member 50 on the pressing portion 312 of the drain button 30 and clamping the first sealing member 50 between the pressing portion 312 and the hole wall of the mounting hole 112, when the drain button 30 moves up and down in the mounting hole 112, the water in the water storage chamber 110a can be prevented from flowing out through the gap between the drain button 30 and the hole wall of the mounting hole 112, thereby preventing the operator's hands from getting wet by the water flowing out of the water storage chamber 110a when pressing the drain button 30.

[0051] The embodiments of the present application are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. At the same time, for general technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A carbon dioxide absorption tank, comprising a tank body, wherein the tank body has a water storage cavity, characterized in that: The inner wall of the water storage cavity is provided with a drainage hole and a mounting hole, and a drainage mechanism is provided in the water storage cavity; The drainage mechanism includes a drainage button and a sealing member, the drainage button is movably connected in the mounting hole, the sealing member is movably arranged in the water storage cavity, and the sealing member is connected to the drainage button, a plug is provided on the sealing member, and the plug is configured to plug the drainage hole, and the drainage button is configured to push the sealing member so that the plug releases the drainage hole.

2. The carbon dioxide absorption tank according to claim 1, characterized in that: One side of the blocking member is rotatably connected to the inner wall of the water storage chamber, and the other side of the blocking member is connected to the drainage button.

3. The carbon dioxide absorption tank according to claim 2, characterized in that: A fixing piece is arranged on the inner wall of the water storage cavity, and the blocking piece is rotatably connected to the fixing piece; the plug is located between the fixing piece and the drainage button.

4. The carbon dioxide absorption tank according to claim 1, characterized in that: The drainage hole is located on the bottom wall of the tank body; the mounting hole is located on the bottom wall or the side wall of the tank body.

5. The carbon dioxide absorption tank according to claim 1, characterized in that: The drainage mechanism also includes a first seal and a second seal. The first seal is located between the drainage button and the mounting hole. The second seal is configured to seal the gap between the plug and the drainage hole when the plug blocks the drainage hole.

6. The carbon dioxide absorption tank according to claim 1, characterized in that: The drainage hole includes a first sub-hole and a second sub-hole that are connected. The second sub-hole is located on a side of the first sub-hole away from the water storage chamber. The aperture of the first sub-hole gradually increases from the second sub-hole to the first sub-hole.

7. The carbon dioxide absorption tank according to claim 1, characterized in that: The drainage button comprises a main body and a push portion which are connected to each other. The main body is passed through the mounting hole. The push portion is located in the water storage cavity. The blocking member is connected to the push portion.

8. The carbon dioxide absorption tank according to claim 7, characterized in that: The pushing portion is a limiting groove, and one side of the blocking member is connected to the limiting groove.

9. The carbon dioxide absorption tank according to claim 7, characterized in that: The drainage mechanism also includes an elastic member, and the main body is provided with a receiving groove at one end of the water storage cavity. One end of the elastic member is installed in the receiving groove, and the other end of the elastic member extends out from the receiving groove and abuts against the inner wall of the water storage cavity arranged opposite to the mounting hole.

10. The carbon dioxide absorption tank according to claim 7, characterized in that: The inner wall of the water storage cavity is also provided with a guide groove, and the guide groove and the mounting hole are respectively located on two opposite inner walls of the water storage cavity, and the main body is slidably connected in the guide groove and the mounting hole.

11. The carbon dioxide absorption tank according to claim 9, characterized in that: The tank body includes a detachably connected tank body and a base, wherein the tank body and the base enclose the water storage cavity, the tank body is provided with a receiving cavity, and the cavity bottom wall of the receiving cavity is provided with a plurality of through holes, and the through holes are configured to connect the receiving cavity and the water storage cavity.

12. An anesthesia machine, characterized in that: The invention comprises a main unit and a carbon dioxide absorption tank as claimed in any one of claims 1 to 11, wherein the carbon dioxide absorption tank is installed on the main unit.

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