Medical gas mixing device
By accelerating gas mixing by using a piston and a motor-driven impeller structure in a medical gas mixing device, and preventing gas backflow by the design of the blocking box and air conduit pipe, the problems of slow mixing speed and gas backflow in the existing device are solved, achieving uniform mixing of gas and efficient operation of the device.
Patent Information
- Application Number
- CN202422017089.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-20
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-08-20
AI Technical Summary
The existing medical gas mixing devices have slow mixing speed, uneven mixing, and multiple sets of gas supply pipes are in communication with the mixer at the same time, which is prone to gas reflux, resulting in contamination of the gas raw material box.
A medical gas mixing device is designed, using a piston and a motor-driven impeller structure to accelerate gas mixing, prevent gas backflow by the design of the blocking box and the air conduit, and achieve uniform gas mixing through the pressure relief gas box and control valve.
The gas mixing speed is improved, the gas mixing is fully mixed, the gas return is prevented, the gas raw material box is contaminated, and the efficiency and reliability of the mixing device are improved.
Smart Images
Figure CN223042533U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical gas mixing devices, in particular to a medical gas mixing device. Background Technique
[0002] A medical gas mixing device mixes different gases evenly in the required proportion to form a mixed gas at the same temperature. Mainly, different gases are injected into the mixer, and after mixing
[0003] Most of the existing medical gas mixing devices have simple structures, slow gas mixing speeds, uneven mixing, and multiple air supply pipes are connected to the mixer at the same time, which easily leads to gas backflow, resulting in pollution of multiple gas raw material tanks.
[0004] Therefore, this application provides a medical gas mixing device to solve the problems raised in the above background technique. Content of the Utility Model
[0005] I. Technical Problems to be Solved
[0006] The technical problem to be solved by the utility model is slow gas mixing speed, uneven mixing, and multiple air supply pipes are connected to the mixer at the same time, which easily leads to gas backflow.
[0007] II. Technical Solution
[0008] To solve the above technical problems, the technical solution provided by the utility model is: a medical gas mixing device, including an operation table, support frames are respectively installed on both sides of the lower side wall of the operation table, a mixing barrel is installed through the center of the operation table, a control valve II is communicated with the upper part of one side wall of the mixing barrel, pressure relief gas boxes are respectively installed on both sides of the upper side wall of the operation table, a connection port is arranged on one side wall of the pressure relief gas box, a blocking box is arranged on the top of the mixing barrel, a connecting pipe is arranged between the mixing barrel and the blocking box in a matching and communicating manner, and guide pipes are respectively communicated between the opposite sides of the blocking box and the top of the mixing barrel;
[0009] A piston slides inside the mixing barrel, a box body is installed on the lower side of the piston, a motor II is installed inside the box body, and the shaft end of the motor II penetrates to the upper side of the piston and is installed with an impeller.
[0010] As an improvement, a threaded shaft is installed on the lower side of the box body, a threaded sleeve is rotatably penetrated through the bottom of the mixing barrel, the threaded shaft is threadedly penetrated through the threaded sleeve in a matching manner, a gear I is sleeved on the lower part of the outer wall of the threaded sleeve, a motor I is installed on the lower side of the operation table, and a gear II engaged with the gear I is installed on the shaft end of the motor I.
[0011] As an improvement, a cross plate is installed at the lower end of the threaded shaft, and a limiting rod is installed on one side above the cross plate. The upper end of the limiting rod slides through the operating table.
[0012] As an improvement, sealing rings are respectively arranged on the inner and outer walls of the piston. The other sides of the two sealing rings are respectively in close contact with the inner wall of the mixing barrel and the second shaft end of the motor.
[0013] As an improvement, a circular pipe communicated with the connecting pipe is connected between the middle parts of the upper and lower walls of the blocking box. One air inlet 1 is respectively arranged on both sides of the circular pipe close to the air guide pipe. A cylinder rotates inside the circular pipe. The lower side of the cylinder is a structure without a plate, and air inlets 2 communicated with the air inlet 1 are respectively arranged on the opposite two side walls. A rotating wheel is installed at the top of the cylinder, and the rotating wheel is located outside the blocking box.
[0014] As an improvement, a control valve 1 is installed on the air guide pipe.
[0015] As an improvement, a control switch is installed on the upper side of the operating table.
[0016] III. Beneficial effects
[0017] The advantages of the present utility model compared with the prior art are as follows:
[0018] 1. A motor 2 and an impeller are installed on the piston inside the mixing barrel. By the rotation of the impeller, the mixing speed of the gas inside the mixing barrel is accelerated, ensuring the full mixing of various gases inside the mixing barrel.
[0019] 2. The gas enters the mixing barrel through multiple air guide pipes after passing through the blocking box. The blocking box can block multiple air guide pipes, preventing the reflux gas from entering the air guide pipes and polluting the gas in the pressure relief air tank. Description of the drawings
[0020] Figure 1 is the overall structural schematic diagram of a medical gas mixing device of the present utility model.
[0021] Figure 2 is the structural schematic diagram of the lower side of the operating table of a medical gas mixing device of the present utility model.
[0022] Figure 3 is the structural schematic diagram of the piston connection of a medical gas mixing device of the present utility model.
[0023] Figure 4 is the sectional structural schematic diagram of the piston of a medical gas mixing device of the present utility model.
[0024] Figure 5 is the structural schematic diagram of the inside of the mixing barrel of a medical gas mixing device of the present utility model.
[0025] Figure 6 This is a schematic diagram of the cylindrical connection structure of a medical gas mixing device of the present utility model.
[0026] As shown in the figure: 1. Operating table; 2. Support frame; 3. Mixing barrel; 301. Threaded sleeve; 302. First gear; 303. First motor; 304. Second gear; 305. Threaded shaft; 306. Box body; 307. Piston; 308. Second motor; 309. Impeller; 310. Sealing ring; 311. Horizontal plate; 312. Limit rod; 4. Pressure relief gas tank; 5. Blocking box; 501. Round tube; 502. First air inlet; 503. Cylinder; 504. Second air inlet; 505. Rotating wheel; 6. Connecting pipe; 7. First control valve; 8. Air duct; 9. Connection port; 10. Second control valve; 11. Control switch. Specific implementation manner
[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments; based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0028] Embodiment 1
[0029] As shown in the attached Figure 1 and attached Figure 3 and attached Figure 4 figures, a medical gas mixing device includes an operating table 1. Support frames 2 are respectively installed on both sides of the lower side wall of the operating table 1. A mixing barrel 3 is installed through the center of the operating table 1. A second control valve 10 is communicated with the upper part of one side wall of the mixing barrel 3. Pressure relief gas tanks 4 are respectively installed on both sides of the upper side wall of the operating table 1. A connection port 9 is provided on one side wall of the pressure relief gas tank 4. A blocking box 5 is provided on the top of the mixing barrel 3. A connecting pipe 6 is cooperatively communicated between the mixing barrel 3 and the blocking box 5. Air ducts 8 are respectively communicated between the opposite sides of the blocking box 5 and the top of the mixing barrel 3. A first control valve 7 is installed on the air duct 8;
[0030] A piston 307 slides inside the mixing barrel 3. A box body 306 is installed below the piston 307. A second motor 308 is installed inside the box body 306. The shaft end of the second motor 308 penetrates to the upper side of the piston 307 and an impeller 309 is installed. A control switch 11 is installed on the upper side of the operating table 1.
[0031] With the above structure, the connecting port 9 is externally connected to a conduit, and the pressure relief gas tank 4 and the mixing barrel 3 are pumped to a vacuum state. The piston 307 is located at the upper inner part of the mixing barrel 3. The blocking box 5 and the control valve 1 7 are closed. The medical gas storage cylinder is connected to the conduit on the connecting port 9, and compressed gas is sent into the pressure relief gas tank 4. When gas mixing is carried out, the control valve 1 7 on the gas guide pipe 8 and the blocking box 5 are opened, so that multiple groups of gas guide pipes 8 are communicated with the mixing barrel 3. The piston 307 moves downward, and the gas in each pressure relief gas tank 4 enters the mixing barrel 3 through the gas guide pipe 8 and the blocking box 5. The motor 2 308 is started through the control switch 11, the impeller 309 is driven to rotate by the motor 2 308, and the air flow is driven by the impeller 309 to accelerate the mixing speed of the medical gas. After sufficient gas is inhaled inside the mixing barrel 3, the control valve 1 7 on the gas guide pipe 8 and the blocking box 5 are closed to prevent the medical gas in the mixing barrel 3 from flowing back into the gas guide pipe 8. When the control valve 1 7 is opened again, it is easy to contaminate the gas in the pressure relief gas tank 4. The specific structure is as follows:
[0032] Combined with the attached Figure 2 and the attached Figure 3 As shown, a threaded shaft 305 is installed on the lower side of the box body 306. A threaded sleeve 301 is rotatably penetrated through the bottom of the mixing barrel 3. The threaded shaft 305 is threadedly fitted through the threaded sleeve 301. A first gear 302 is sleeved on the lower part of the outer wall of the threaded sleeve 301. A first motor 303 is installed on the lower side of the operation table 1. A second gear 304 engaged with the first gear 302 is installed at the shaft end of the first motor 303.
[0033] A cross plate 311 is installed at the lower end of the threaded shaft 305. A limiting rod 312 is installed on one side above the cross plate 311. The upper end of the limiting rod 312 slidably penetrates through the operation table 1.
[0034] Sealing rings 310 are respectively arranged on the inner and outer walls of the piston 307. The other sides of the two sealing rings 310 are respectively in close contact with the inner wall of the mixing barrel 3 and the shaft end of the motor 2 308.
[0035] With the above structure, when the piston 307 moves up and down, the first motor 303 is started through the control switch 11, the second gear 304 is driven to rotate by the first motor 303, and the second gear 304 and the first gear 302 are in an engaged state, thereby driving the threaded sleeve 301 to rotate. The threaded shaft 305 moves up and down in the threaded sleeve 301 in cooperation with the thread, and the box body 306 and the piston 307 are driven to move up and down by the threaded shaft 305.
[0036] The limiting rod 312 is driven to slide through the operation table 1 by the cross plate 311 at the lower end of the threaded shaft 305 to limit the threaded shaft 305 to prevent the threaded shaft 305 from rotating with the threaded sleeve 301.
[0037] The sealing ring 310 is used to prevent the leakage of medical gas to the bottom of the mixing barrel 3 and the inside of the box body 306, which may cause the loss of medical gas and affect the up and down movement of the piston 307.
[0038] Embodiment 2
[0039] On the basis of Embodiment 1, please refer to the attached Figure 1 attachment Figure 5 and attachment Figure 6 . A circular tube 501 communicating with the connecting pipe 6 is connected between the middle parts of the upper and lower walls of the blocking box 5. On both sides of the circular tube 501 close to the air guide pipe 8, there are respectively air inlets 502. A cylinder 503 rotates inside the circular tube 501. The lower side of the cylinder 503 is a plate-free structure, and on the opposite side walls, there are respectively air inlets 504 communicating with the air inlets 502. A rotating wheel 505 is installed on the top of the cylinder 503, and the rotating wheel 505 is located outside the blocking box 5.
[0040] With the above structure of Embodiment 2, when the blocking box 5 is blocking, rotate the rotating wheel 505. The rotating wheel 505 drives the cylinder 503 to rotate inside the circular tube 501. The outer wall of the cylinder 503 is in a sealed contact state with the inner wall of the circular tube 501. After completely misaligning the air inlet 502 and the air inlet 504, the blocking on both sides of the blocking box 5 is realized, and at the same time, the blocking between the connecting pipe 6 and both sides of the blocking box 5 is also realized, and no gas will flow back into the air guide pipe 8. When the blocking box 5 is conducting, the operation is the same as above, and the air inlet 502 and the air inlet 504 are made to communicate with each other.
[0041] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.
[0042] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
[0043] The above describes the present utility model and its implementation manners. Such description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present utility model, and the actual structure is not limited thereto. In general, if those of ordinary skill in the art are inspired by it and, without departing from the gist of the creation of the present utility model, design structurally similar ways and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the present utility model.
Claims
1. A medical gas mixing device, comprising an operating table (1), wherein support frames (2) are respectively installed on both sides of the lower side wall of the operating table (1), characterized in that: A mixing barrel (3) is installed through the center of the operating table (1), and a control valve 2 (10) is connected to the upper part of one side wall of the mixing barrel (3). Pressure relief air boxes (4) are installed on both sides of the upper side wall of the operating table (1), and a connecting port (9) is provided on one side wall of the pressure relief air box (4). A blocking box (5) is provided on the top of the mixing barrel (3). A connecting pipe (6) is provided between the mixing barrel (3) and the blocking box (5), and air guide pipes (8) are connected to the top of the mixing barrel (3) on opposite sides of the blocking box (5). A piston (307) slides inside the mixing barrel (3), a box body (306) is installed at the lower side of the piston (307), a second motor (308) is installed inside the box body (306), and the shaft end of the second motor (308) passes through the upper side of the piston (307) and is installed with an impeller (309).
2. A medical gas mixing device according to claim 1, characterized in that: A threaded shaft (305) is installed on the lower side of the box body (306); a threaded sleeve (301) is rotatably passed through the bottom of the mixing barrel (3); the threaded shaft (305) is threadedly passed through the threaded sleeve (301); a gear 1 (302) is sleeved on the lower part of the outer wall of the threaded sleeve (301); a motor 1 (303) is installed on the lower side of the operating table (1); a gear 2 (304) meshing with the gear 1 (302) is installed on the shaft end of the motor 1 (303).
3. A medical gas mixing device according to claim 2, characterized in that: A transverse plate (311) is installed at the lower end of the threaded shaft (305), a limit rod (312) is installed on one side above the transverse plate (311), and the upper end of the limit rod (312) slides through the operating table (1).
4. A medical gas mixing device according to claim 1, characterized in that: The inner and outer walls of the piston (307) are respectively provided with sealing rings (310), and the other sides of the two sets of sealing rings (310) are respectively in close contact with the inner wall of the mixing barrel (3) and the second shaft end of the motor (308).
5. A medical gas mixing device according to claim 1, characterized in that: A circular tube (501) connected to the connecting tube (6) is connected between the middle of the upper and lower walls of the blocking box (5); air inlet ports (502) are respectively arranged on both sides of the circular tube (501) close to the air guide tube (8); a cylinder (503) is rotated inside the circular tube (501); the lower side of the cylinder (503) is a plateless structure and air inlet ports (504) connected to the air inlet port (502) are respectively arranged on the opposite side walls; a rotating wheel (505) is installed on the top of the cylinder (503); and the rotating wheel (505) is located outside the blocking box (5).
6. A medical gas mixing device according to claim 1, characterized in that: A control valve (7) is installed on the air guide pipe (8).
7. A medical gas mixing device according to claim 1, characterized in that: A control switch (11) is installed on the upper side of the operating table (1).