Medical air and oxygen mixing instrument with mixing tube convenient to replace

Abstract

The utility model relates to the technical field of medical air-oxygen mixers, in particular to a medical air-oxygen mixer convenient for replacing a mixing tube, which comprises a moving table, a limiting rod, a sliding frame, a fixed rod, an air-oxygen mixer, an air connecting piece and an oxygen connecting piece, two fixed rods are arranged on the sliding frame in a threaded mode, the fixed rods make contact with the limiting rods, an air and oxygen mixer is installed on the sliding frame, an air connecting piece is connected to the air and oxygen mixer, and an oxygen connecting piece is connected to the air and oxygen mixer. The air-oxygen mixing pipe assembly is pinched by hands, then the driving motor is started, an output shaft of the driving motor drives the friction wheel to rotate, the friction wheel makes contact with the sliding ring, the sliding ring rotates to drive the rhombic magnetic cylinder and the nut to rotate and move rightwards, the nut drives the air-oxygen mixing pipe assembly to move rightwards, and therefore the air-oxygen mixing pipe assembly is separated from the air-oxygen mixing connecting piece; therefore, the purpose of conveniently replacing the mixing pipe is achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of medical air-oxygen mixers, and in particular to a medical air-oxygen mixer with an easy-to-replace mixing tube. Background Technology

[0002] A medical air-oxygen mixer is a device specifically designed for use in medical environments. It can precisely mix air and oxygen on demand, providing patients with a specific oxygen concentration.

[0003] The air-oxygen mixers used in hospitals are either fixed to the mixer with nuts and fasteners or directly. However, when the mixing tube needs to be adjusted or replaced, the mixing tube must be manually disassembled or a completely different air-oxygen mixer must be used. This can affect the timeliness of patient treatment. Furthermore, during manual replacement, incorrect connections or improper settings can easily occur during disassembly and reinstallation, thus affecting equipment performance and posing a potential danger to patients.

[0004] Therefore, there is a need for a medical air-oxygen mixer that facilitates the replacement of the mixing tube. Through components such as a sliding ring, a diamond-shaped magnetic cylinder, a drive motor, and a friction wheel, the air-oxygen mixing tube assembly can be automatically disassembled, thus facilitating the replacement of the mixing tube. Utility Model Content

[0005] To overcome the shortcomings of existing technologies where mixers are attached to the air-oxygen mixer using nuts and fasteners or directly fixed, manual replacement can easily lead to incorrect connections or improper settings during disassembly and reinstallation, thus interfering with equipment performance and posing potential dangers to patients. This invention provides a medical air-oxygen mixer that facilitates the replacement of the mixing tube. Through components such as a sliding ring, a diamond-shaped magnetic cylinder, a drive motor, and a friction wheel, the air-oxygen mixing tube assembly is automatically disassembled, making the replacement of the mixing tube convenient.

[0006] To address the aforementioned problems, this utility model adopts the following technical solution: A medical air-oxygen mixer that facilitates the replacement of the mixing tube, comprising a moving platform, a limiting rod, a sliding frame, a fixed rod, an air-oxygen mixer, an air connector, an oxygen connector, an air-oxygen mixing tube assembly, an air-oxygen mixing connector, a nut, a connecting cylinder, a clamping plate, and a tensioning ring. A limiting rod is fixedly mounted on the moving platform. A sliding frame is slidably mounted on the limiting rod. Two fixed rods are threaded onto the sliding frame. The fixed rod contacts the limiting rod. An air-oxygen mixer is mounted on the sliding frame. An air connector is connected to the air-oxygen mixer. An oxygen connector is connected to the air-oxygen mixer. An air-oxygen mixing connector is mounted on the air-oxygen mixer. The component has a nut threaded on it, an air-oxygen mixing pipe assembly threaded on the nut, a connecting cylinder fixed to the air-oxygen mixing pipe assembly, a clamp fixedly connected to the connecting cylinder, a tensioning ring threaded on the clamp, a noise-reducing shell, a limiting ring, a sliding ring, a rhomboid magnetic cylinder, a drive motor, and a friction wheel. The noise-reducing shell is fixed to the air-oxygen mixer, and a limiting ring is fixed to the air-oxygen mixer. The limiting ring is located inside the noise-reducing shell, and a sliding ring is rotatably installed inside the limiting ring. A rhomboid magnetic cylinder is slidably installed inside the sliding ring. The nut is inserted into the rhomboid magnetic cylinder. A drive motor is installed on the air-oxygen mixer, and the drive motor is located inside the noise-reducing shell. A friction wheel is fixed to the output shaft of the drive motor, and the friction wheel is in contact with the sliding ring.

[0007] To further explain, it also includes baffles, connecting rods, flaps, and torsion springs. Both the air connector and the oxygen connector are rotatably equipped with baffles, and connecting rods are fixedly connected to the baffles. Two connecting rods pass through the air connector and the oxygen connector respectively. Flaps are fixedly connected to the ends of the connecting rods, and torsion springs are sleeved on the connecting rods. The two ends of the left torsion spring are connected to the air connector and the flap respectively, and the two ends of the right torsion spring are connected to the oxygen connector and the flap respectively.

[0008] Further explanation: It also includes a connecting shell, an electromagnet, a rack, a connecting plate, a locking block, a sliding block, and a return spring. The connecting shell is fixed to the limiting rod, and the rack is fixed to the limiting rod. The rack is located inside the connecting shell, and the electromagnet is installed inside the connecting shell. The connecting plate is fixed to the sliding frame, and the sliding block is slidably arranged on the connecting plate. The locking block is fixed to the sliding block and meshes with the rack. The return spring is sleeved on the sliding block, and the two ends of the return spring are connected to the connecting plate and the locking block, respectively.

[0009] To further explain, it also includes an oxygen filter membrane. Both the air connector and the oxygen connector are equipped with oxygen filter membranes, which are located below the baffle.

[0010] To further explain, it also includes a protective shell, which is fixedly attached to the flip plate.

[0011] To further explain, it also includes label plates. Two label plates are fixed to the air-oxygen mixer, with the two label plates located in front of the air connector and the oxygen connector, respectively.

[0012] Compared with the prior art, the present invention has the following technical effects: 1. By pinching the air-oxygen mixing tube assembly by hand and then starting the drive motor, the output shaft of the drive motor drives the friction wheel to rotate. The friction wheel contacts the sliding ring, causing the sliding ring to rotate and drive the rhomboid magnetic cylinder and nut to rotate and move to the right. This causes the nut to drive the air-oxygen mixing tube assembly to move to the right, thereby disengaging from the air-oxygen mixing connector and completing automatic disassembly, thus facilitating the replacement of the mixing tube.

[0013] 2. By connecting the hose to the air-oxygen mixing tube assembly and then rotating the tension ring downwards, the clamp deforms to fix the hose and prevent the hose from accidentally falling off during use.

[0014] 3. The gas lost through the trachea cannot fully push the baffle. The torsion spring then drives the flap, baffle and connecting rod to reset, so that the flap is in a horizontal position. This can inform medical staff of the abnormality of the equipment as soon as possible, and avoid more serious consequences due to delayed detection of the problem.

[0015] 4. By activating the electromagnet, the electromagnet attracts the sliding block to move backward, and the return spring is compressed accordingly. The locking block disengages from the rack, and then the fixing rod is rotated to disengage from the limit rod. This allows the position of the sliding frame and the air-oxygen mixer to be adjusted to meet different usage scenarios. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a three-dimensional structural diagram of the air-oxygen mixer, air connector, and oxygen connector of this utility model.

[0018] Figure 3 This is a three-dimensional sectional view of the air-oxygen mixing connector, connecting cylinder, and clamping plate of this utility model.

[0019] Figure 4 This is a three-dimensional sectional view of the connecting shell, electromagnet, and rack of this utility model.

[0020] Figure 5 This is a three-dimensional sectional view of the locking block, sliding block, and return spring of this utility model.

[0021] Figure 6 This is a three-dimensional sectional view of the moving frame, fixed rod, and air-oxygen mixer of this utility model.

[0022] Figure 7This is a three-dimensional sectional view of the air-oxygen mixing pipe assembly, air-oxygen mixing connector, and connecting cylinder of this utility model.

[0023] Figure 8 This is a three-dimensional sectional view of the limiting ring, sliding ring, and rhomboid magnetic cylinder of this utility model.

[0024] The meanings of the labels in the attached diagram are as follows: 1: Moving platform, 2: Limiting rod, 3: Sliding frame, 4: Fixed rod, 5: Air-oxygen mixer, 6: Air connector, 7: Oxygen connector, 8: Air-oxygen mixing pipe assembly, 80: Air-oxygen mixing connector, 81: Nut, 9: Connecting cylinder, 10: Clamping plate, 11: Tensioning ring, 12: Baffle, 13: Connecting rod, 14: Flip plate, 15: Torsion spring, 16: Connecting shell, 17: Electromagnet, 18: Rack, 19: Connecting plate, 20: Locking block, 21: Sliding block, 22: Return spring, 23: Oxygen filter membrane, 24: Protective shell, 25: Label plate, 26: Noise reduction shell, 27: Limiting ring, 28: Sliding ring, 29: Diamond magnetic cylinder, 30: Drive motor, 31: Friction wheel. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1: A medical air-oxygen mixer with an easy-to-replace mixing tube, see reference. Figures 1-8As shown, the assembly includes a moving platform 1, a limiting rod 2, a sliding frame 3, a fixed rod 4, an air-oxygen mixer 5, an air connector 6, an oxygen connector 7, an air-oxygen mixing pipe assembly 8, an air-oxygen mixing connector 80, a nut 81, a connecting cylinder 9, a clamping plate 10, and a tensioning ring 11. The limiting rod 2 is welded to the top of the moving platform 1. A sliding frame 3 is slidably mounted on the limiting rod 2. Fixed rods 4 are threaded onto both sides of the sliding frame 3, and the fixed rods 4 contact the limiting rod 2. The air-oxygen mixer 5 is bolted to the front of the sliding frame 3. An air connector 6 is connected to the bottom left side of the air-oxygen mixer 5, and an oxygen connector 7 is connected to the bottom right side of the air-oxygen mixer 5. An air-oxygen mixing connector 80 is bolted to the lower right side of the air-oxygen mixer 5. A nut 81 is threaded on the right side of the air-oxygen mixing connector 80, and an air-oxygen mixing pipe assembly 8 is threaded on the right side of the nut 81. The air-oxygen mixing pipe assembly 8 consists of a... The air-oxygen mixing tube assembly 8 consists of an air-oxygen mixing tube and a connecting frame. The bottom of the connecting frame of the air-oxygen mixing tube assembly 8 is fixedly connected to a connecting cylinder 9, and the bottom of the connecting cylinder 9 is fixedly connected to a clamping plate 10. The clamping plate 10 is made of plastic and has a threaded groove. A tensioning ring 11 is threadedly set on the clamping plate 10. The assembly also includes a noise reduction shell 26, a limiting ring 27, a sliding ring 28, a rhomboid magnetic cylinder 29, a drive motor 30, and a friction wheel 31. The noise reduction shell 26 is welded to the right side of the air-oxygen mixer 5. The limiting ring 27 is welded to the right side of the air-oxygen mixer 5. The limiting ring 27 is located inside the noise reduction shell 26. The sliding ring 28 is rotatably set inside the limiting ring 27. The rhomboid magnetic cylinder 29 is slidably set inside the sliding ring 28. A nut 81 is inserted into the rhomboid magnetic cylinder 29. The drive motor 30 is bolted to the right side of the air-oxygen mixer 5. The friction wheel 31 is fixedly connected to the output shaft of the drive motor 30. The friction wheel 31 is in contact with the sliding ring 28.

[0027] See Figure 1 As shown, it also includes label plates 25. The air-oxygen mixer 5 has label plates 25 symmetrically welded to the bottom left and right. The two label plates 25 are located in front of the air connector 6 and the oxygen connector 7, respectively.

[0028] When the medical air-oxygen mixer is needed, connect the air tube and oxygen tube to the air connector 6 and oxygen connector 7 respectively, connect the hose to the air-oxygen mixing tube assembly 8, and connect the other end of the hose to the corresponding device. When the air-oxygen mixer 5 is started, air and oxygen enter the air-oxygen mixing tube assembly 8, allowing the assembly to mix the air and oxygen. The mixed gas is then output from the hose. When installing the hose, connect the hose to the air-oxygen mixing tube assembly 8, and then rotate the tension ring 11 downwards to deform the clamp 10 and fix the hose, preventing it from accidentally falling off during use. When the air-oxygen mixing tube needs to be replaced, hold the air-oxygen mixing tube assembly 8 by hand and then start the drive motor 3. 0. The output shaft of the drive motor 30 drives the friction wheel 31 to rotate. The friction wheel 31 contacts the sliding ring 28, causing the sliding ring 28 to rotate and drive the rhomboid magnetic cylinder 29 and the nut 81 to rotate and move to the right. This causes the nut 81 to drive the air-oxygen mixing tube assembly 8 to move to the right, thereby disengaging it from the air-oxygen mixing connector 80 and completing automatic disassembly, which facilitates the replacement of the mixing tube. When a new air-oxygen mixing tube needs to be replaced, the nut 81 on the new air-oxygen mixing tube assembly 8 is inserted into the rhomboid magnetic cylinder 29, and then the friction wheel 31 is driven to reverse, causing the sliding ring 28, the rhomboid magnetic cylinder 29 and the nut 81 to reverse, thereby automatically installing the air-oxygen mixing tube. The label plate 25 makes it easy for medical staff to distinguish between the air connector 6 and the oxygen connector 7.

[0029] Example 2: Based on Example 1, refer to Figure 2 and Figure 3 As shown, it also includes a baffle 12, a connecting rod 13, a flap 14, and a torsion spring 15. Both the air connector 6 and the oxygen connector 7 are rotatably equipped with baffles 12. The outer side of the baffle 12 is equipped with a connecting rod 13 by welding. The two connecting rods 13 pass through the air connector 6 and the oxygen connector 7 respectively. The ends of the connecting rods 13 are equipped with flaps 14 by welding. The connecting rods 13 are fitted with torsion springs 15. The two ends of the left torsion spring 15 are connected to the air connector 6 and the flap 14 respectively, and the two ends of the right torsion spring 15 are connected to the oxygen connector 7 and the flap 14 respectively.

[0030] See Figure 3 As shown, it also includes an oxygen filter membrane 23. Both the air connector 6 and the oxygen connector 7 are provided with oxygen filter membranes 23, and the oxygen filter membrane 23 is located below the baffle 12.

[0031] See Figure 3 As shown, it also includes a protective shell 24, which is fixedly attached to the flap 14. The protective shell 24 is used to protect the torsion spring 15.

[0032] When using the medical air-oxygen mixer, as the oxygen connector 7 within the air connector 6 transmits gas, the oxygen filter membrane 23 filters the air and oxygen. The gas being delivered pushes the baffle 12 within the air connector 6 and the oxygen connector 7, causing the baffle 12 to rotate. The rotation of the baffle 12 drives the flap 14 and the connecting rod 13 to rotate, so that the flap 14 is in a vertical position, and the torsion spring 15 deforms. When the oxygen tube or gas tube is damaged, the gas lost through the tube cannot completely push the baffle 12. The torsion spring 15 then drives the flap 14, the baffle 12, and the connecting rod 13 to reset, so that the flap 14 is in a horizontal position. This allows medical personnel to be notified immediately of an equipment malfunction, avoiding more serious consequences due to delayed problem detection.

[0033] See Figures 4-6 As shown, it also includes a connecting shell 16, an electromagnet 17, a rack 18, a connecting plate 19, a locking block 20, a sliding block 21, and a return spring 22. The connecting shell 16 is fixedly connected to the rear side of the limiting rod 2, and the rack 18 is fixedly connected to the rear side of the limiting rod 2. The rack 18 is located inside the connecting shell 16. The electromagnet 17 is installed on the rear side of the connecting shell 16 by bolt connection. The connecting plate 19 is fixedly connected to the rear side of the sliding frame 3. The sliding block 21 is slidably arranged at the rear of the connecting plate 19. The sliding block 21 is made of metal. The locking block 20 is fixedly connected to the front side of the sliding block 21. The locking block 20 meshes with the rack 18. The return spring 22 is sleeved on the sliding block 21. The two ends of the return spring 22 are connected to the connecting plate 19 and the locking block 20, respectively.

[0034] When the position of the air-oxygen mixer 5 needs to be adjusted, the electromagnet 17 is activated, which attracts the sliding block 21 to move backward. The return spring 22 is compressed accordingly, and the locking block 20 disengages from the rack 18. Then, the fixing rod 4 is rotated to disengage from the limiting rod 2. This allows the position of the sliding frame 3 and the air-oxygen mixer 5 to be adjusted to meet different usage scenarios. When the position is adjusted to a suitable level, the electromagnet 17 is turned off, and the return spring 22 returns to its original state, causing the sliding block 21 to move forward, so that the locking block 20 is locked onto the rack 18. Then, the fixing rod 4 is reversed to fix the sliding frame 3 and the air-oxygen mixer 5.

[0035] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Therefore, all equivalent changes made based on the content described in the claims of the present utility model should be included within the scope of the claims of the present utility model.

Claims

1. A medical air-oxygen mixer with easy-to-replace mixing tube, comprising a moving platform (1), a limiting rod (2), a sliding frame (3), a fixed rod (4), an air-oxygen mixer (5), an air connector (6), an oxygen connector (7), an air-oxygen mixing tube assembly (8), an air-oxygen mixing connector (80), a nut (81), a connecting cylinder (9), a clamp (10), and a tensioning ring (11). The limiting rod (2) is fixedly connected to the moving platform (1). The sliding frame (3) is slidably provided on the limiting rod (2). Two fixed rods (4) are threadedly provided on the sliding frame (3). The fixed rods (4) are connected to the limiting rod (2). An air-oxygen mixer (5) is installed on a sliding frame (3). An air connector (6) is connected to the air-oxygen mixer (5). An oxygen connector (7) is connected to the air-oxygen mixer (5). An air-oxygen mixing connector (80) is installed on the air-oxygen mixer (5). A nut (81) is threaded on the air-oxygen mixing connector (80). An air-oxygen mixing pipe assembly (8) is threaded on the nut (81). A connecting cylinder (9) is fixedly connected to the air-oxygen mixing pipe assembly (8). A clamping plate (10) is fixedly connected to the connecting cylinder (9). A tensioning ring (11) is threaded on the clamping plate (10). The feature is that: It also includes a noise reduction shell (26), a limiting ring (27), a sliding ring (28), a rhomboid magnetic cylinder (29), a drive motor (30), and a friction wheel (31). The noise reduction shell (26) is fixedly connected to the air-oxygen mixer (5). The limiting ring (27) is fixedly connected to the air-oxygen mixer (5). The limiting ring (27) is located inside the noise reduction shell (26). The sliding ring (28) is rotatably arranged inside the limiting ring (27). The rhomboid magnetic cylinder (29) is slidably arranged inside the sliding ring (28). The nut (81) is inserted into the rhomboid magnetic cylinder (29). The drive motor (30) is installed on the air-oxygen mixer (5). The drive motor (30) is located inside the noise reduction shell (26). The friction wheel (31) is fixedly connected to the output shaft of the drive motor (30). The friction wheel (31) is in contact with the sliding ring (28).

2. A medical air-oxygen mixer with an easily replaceable mixing tube as described in claim 1, characterized in that: It also includes a baffle (12), a connecting rod (13), a flap (14) and a torsion spring (15). The air connector (6) and the oxygen connector (7) are both rotatably equipped with baffles (12). A connecting rod (13) is fixedly connected to the baffle (12). The two connecting rods (13) pass through the air connector (6) and the oxygen connector (7) respectively. A flap (14) is fixedly connected to the end of the connecting rod (13). A torsion spring (15) is sleeved on the connecting rod (13). The two ends of the left torsion spring (15) are connected to the air connector (6) and the flap (14) respectively. The two ends of the right torsion spring (15) are connected to the oxygen connector (7) and the flap (14) respectively.

3. A medical air-oxygen mixer with an easily replaceable mixing tube according to claim 2, characterized in that: It also includes a connecting shell (16), an electromagnet (17), a rack (18), a connecting plate (19), a locking block (20), a sliding block (21), and a return spring (22). The connecting shell (16) is fixedly connected to the limiting rod (2), and the rack (18) is fixedly connected to the limiting rod (2). The rack (18) is located inside the connecting shell (16). The electromagnet (17) is installed inside the connecting shell (16). The connecting plate (19) is fixedly connected to the sliding frame (3). The sliding block (21) is slidably arranged on the connecting plate (19). The locking block (20) is fixedly connected to the sliding block (21). The locking block (20) meshes with the rack (18). The return spring (22) is sleeved on the sliding block (21). The two ends of the return spring (22) are connected to the connecting plate (19) and the locking block (20) respectively.

4. A medical air-oxygen mixer with an easily replaceable mixing tube as described in claim 3, characterized in that: It also includes an oxygen filter membrane (23). Both the air connector (6) and the oxygen connector (7) are equipped with oxygen filter membranes (23), and the oxygen filter membrane (23) is located below the baffle (12).

5. A medical air-oxygen mixer with an easily replaceable mixing tube according to claim 4, characterized in that: It also includes a protective shell (24), which is fixed to the flap (14).

6. A medical air-oxygen mixer with an easily replaceable mixing tube according to claim 5, characterized in that: It also includes label plates (25), with two label plates (25) fixed on the air-oxygen mixer (5), and the two label plates (25) are located in front of the air connector (6) and the oxygen connector (7), respectively.

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