Semi-automatic variable flow gas supply control module
Through the semi-automatic variable flow gas supply control module, the combined design of the knob and gear slot is used to solve the problem of unstable oxygen supply, and the precise control and stable supply of oxygen flow are achieved, which improves user comfort and experimental accuracy.
Patent Information
- Application Number
- CN202422721810.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-08
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2034-11-08
AI Technical Summary
The existing oxygen supply control module cannot provide a stable fixed flow rate, resulting in unstable oxygen supply, affecting user comfort and accuracy of experimental results.
The semi-automatic variable flow gas supply control module is adopted, and the combination of the knob and the gear slot is designed, combined with the conical table-shaped structure of the plug rod and the socket, the oxygen flow is accurately controlled, and different fixed gas flow gears can be set according to needs.
It realizes accurate control of oxygen flow, ensures the stability of oxygen supply, improves user comfort, and improves the accuracy of experimental results.
Smart Images
Figure CN223282589U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of oxygen supply control modules, in particular to a semi-automatic variable flow gas supply control module. Background Art
[0002] As we all know, in the oxygen supply system, a gas supply control module is generally set up between the oxygen cylinder and the oxygen mask, which is mainly used to control the introduction and shutdown of oxygen. In actual use, the user can manually adjust the working status of the oxygen supply system through the gas supply control module.
[0003] Currently, existing oxygen supply control modules typically incorporate a control valve to control the flow of oxygen, and a regulating valve in the pipeline to adjust the flow rate. However, these regulating valves often adjust the flow rate randomly, failing to provide a more reasonable fixed flow rate. This results in unstable oxygen supply and, consequently, discomfort for the recipient. Furthermore, when used in laboratory research, the randomness of the adjusted flow rate, if not adjusted to a fixed flow rate, directly impacts the accuracy of experimental results.
[0004] Therefore, it is necessary to improve the existing technology. Utility Model Content
[0005] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a semi-automatic variable flow air supply control module.
[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0007] A semi-automatic variable flow gas supply control module comprises a box body, wherein an oxygen supply chamber, a regulating chamber, an air inlet and an air outlet are arranged inside the box body, wherein the air inlet is used to be connected to an external oxygen cylinder, wherein the air inlet is communicated with the oxygen supply chamber, wherein a base is fixedly installed inside the regulating chamber, wherein a first sealing ring is arranged between the side wall of the base and the cavity wall of the regulating chamber, and a conducting chamber is formed in the regulating chamber through the first sealing ring, wherein the conducting chamber is communicated with the air outlet, wherein the base is provided with a counter-mounting chamber, wherein the base is provided with a guide hole at the conduction chamber, wherein the guide hole is connected to the counter-mounting chamber The loading cavity is connected, and an adjusting rod is installed in the loading cavity through a thread. A second sealing ring is provided on the side of one end of the adjusting rod and a plug rod is provided at the end head. The plug rod is conical, and the inner end of the base is provided with a plug hole corresponding to the shape of the plug rod. The plug hole is connected to the oxygen supply cavity, and the outer end surface of the base is provided with gear grooves arranged in a ring array. The other end of the adjusting rod is provided with a knob located outside the box body, and the inner end surface of the knob is provided with at least one spring top ball, and the spring top ball is selectively inserted into a single gear groove.
[0008] Preferably, a first sleeve is fixedly installed inside the oxygen supply chamber, and third sealing rings are respectively provided at both ends of the first sleeve, so that the oxygen supply chamber is divided into an inner cavity, a middle cavity and an outer cavity. The inner cavity of the oxygen supply chamber is connected to the air outlet, and the middle cavity of the oxygen supply chamber is connected to the regulating chamber. The first sleeve is provided with a first annular groove at the middle cavity of the oxygen supply chamber, and a first air inlet hole communicating with the interior of the first sleeve is provided on the first annular groove. A first valve core is provided inside the first sleeve, and one end of the first valve core is limited to the bottom of the first sleeve, and the other end of the first valve core is placed at the outer cavity of the oxygen supply chamber and is provided with a first pressing cap. A first spring is provided between the first pressing cap and the first sleeve, and under the action of the first spring, the first pressing cap has a tendency to pop outward all the time. The bottom and middle part of the first valve core are both in contact with the inner wall of the first sleeve via fourth sealing rings. A second annular groove for communicating with the first air inlet hole is formed between the part of the first valve core located between the two fourth sealing rings and the inner wall of the first sleeve.
[0009] Preferably, the box body is further provided with a dilution gas addition chamber and a dilution gas supply inlet, a second sleeve is fixedly installed inside the dilution gas addition chamber, and fifth sealing rings are respectively provided at both ends of the second sleeve to divide the dilution gas addition chamber into an inner chamber, a middle chamber and an outer chamber opening, the inner chamber of the dilution gas addition chamber is communicated with the guide chamber in the regulating chamber, the middle chamber of the dilution gas addition chamber is communicated with the dilution gas supply inlet, the second sleeve is provided with a third annular groove at the middle chamber of the dilution gas addition chamber, and the third annular groove is provided with a second air inlet hole communicated with the interior of the second sleeve, and the second sleeve A second valve core is provided inside the tube, one end of the second valve core is limited to the bottom of the second sleeve, the other end of the second valve core is placed at the outer cavity opening of the dilution gas adding chamber and is provided with a second pressing cap, a second spring is provided between the second pressing cap and the second sleeve, and under the action of the second spring, the first pressing cap always has a tendency to pop outward, the bottom and middle of the second valve core are both fitted with the inner wall of the second sleeve through the sixth sealing ring, and a fourth annular groove for communicating with the second air inlet hole is formed between the part of the second valve core located between the two sixth sealing rings and the inner wall of the second sleeve.
[0010] Preferably, the air inlet and the dilution gas supply port are both provided with a gas circuit one-way valve that only allows gas to be introduced into the interior of the box body.
[0011] Preferably, an air filter block is provided at the valve port of the air circuit one-way valve.
[0012] Preferably, the surface of the knob is provided with an anti-slip surface.
[0013] Preferably, the first pressing cap is placed inside the outer cavity opening of the oxygen supply cavity, and the second pressing cap is placed outside the outer cavity opening of the dilution gas adding cavity.
[0014] Due to the adoption of the above-mentioned solution, the utility model allows the depth of the rotational insertion of the adjustment rod to be adjusted in the form of fixed gears through the combination of the spring top ball and the gear slot on the knob. At the same time, combined with the conical table-shaped design between the insertion rod and the insertion hole, the fixed emission of oxygen can be controlled at a specific gear, so that the oxygen emission can be controlled more accurately, thereby ensuring a stable supply of breathing gas, and different fixed gas flow gears can be set according to different diving depths. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a structural schematic diagram of an embodiment of the present utility model.
[0016] Figure 2 It is a cross-sectional view of the entire embodiment of the present utility model.
[0017] Figure 3 It is a cross-sectional view of the adjustment cavity of an embodiment of the present utility model.
[0018] Figure 4 It is a cross-sectional view of the oxygen supply chamber according to an embodiment of the present invention.
[0019] Figure 5 It is a cross-sectional view of the dilution gas adding chamber according to an embodiment of the present utility model. DETAILED DESCRIPTION
[0020] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.
[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.
[0022] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, removable connections, or integral connections. They may refer to mechanical connections or electrical connections. They may refer to direct connections or indirect connections through an intermediary, and they may refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.
[0023] like Figures 1 to 5As shown, a semi-automatic variable flow gas supply control module provided in this embodiment includes a box body 1, wherein an oxygen supply chamber 2, a regulating chamber 3, an air inlet 4 and an air outlet 5 are provided inside the box body 1, wherein the air inlet 4 is used to be connected to an external oxygen cylinder, and the air inlet 4 is communicated with the oxygen supply chamber 2, a base 31 is fixedly installed inside the regulating chamber 3, a first sealing ring 32 is provided between the side wall of the base 31 and the cavity wall of the regulating chamber 3, and a conducting cavity 33 is formed in the regulating chamber 3 through the first sealing ring 32, and the conducting cavity 33 is communicated with the air outlet 5, the base 31 is provided with a mounting cavity 34, and a guide hole 35 is provided on the base 31 at the guide cavity 33, and the guide hole 35 is connected to the mounting cavity 34. The loading cavity 34 is connected, and an adjusting rod 36 is installed in the loading cavity 34 through a thread. A second sealing ring 37 is provided on the side of one end of the adjusting rod 36 and a plug rod 38 is provided at the end. The plug rod 38 is conical. The inner end of the base 31 is provided with a plug hole 39 corresponding to the shape of the plug rod 38. The plug hole 39 is connected to the oxygen supply chamber 2. The outer end surface of the base 31 is provided with gear grooves 301 arranged in a ring array. The other end of the adjusting rod 36 is provided with a knob 302 placed outside the box body 1. The inner end surface of the knob 302 is provided with at least one spring top ball 303, and the spring top ball 303 is selectively inserted into a single gear groove 301.
[0024] In use, the oxygen cylinder is connected to the air inlet 4, allowing oxygen to enter the regulating chamber 3 from the oxygen supply chamber 2. However, due to the presence of the first sealing ring 32, oxygen entering the regulating chamber 3 is only allowed to enter through the opposite insertion hole 39. The tapered shape between the opposite insertion rod 38 and the opposite insertion hole 39 allows the opposite insertion rod 38 to control the size of the opening, thereby controlling the oxygen flow rate. The regulating rod 36 is assembled using a threaded structure. The forward or reverse rotation of the knob 302 controls the back-and-forth movement of the regulating rod 36, thereby controlling the insertion depth of the opposite insertion rod 38. The spring-loaded ball 303 and the gear slot 301 on the knob 302 provide gears during rotation, creating a detent position after each rotation of a certain angle. This achieves stable control of the oxygen flow rate. Rotating the knob inwards shuts off oxygen discharge, while rotating it outwards maximizes oxygen discharge. The oxygen that enters the base 31 will enter the guide cavity 33 through the guide hole 35 and finally be discharged from the air outlet 5 for use by the user.
[0025] Furthermore, in order to be able to supply oxygen at the maximum flow rate at once when necessary, a first sleeve 21 is fixedly installed inside the oxygen supply chamber 2 of this embodiment. A third sealing ring 22 is provided at each end of the first sleeve 21, so that the oxygen supply chamber 2 is divided into an inner cavity, a middle cavity and an outer cavity. The inner cavity of the oxygen supply chamber 2 is connected to the air outlet 5, and the middle cavity of the oxygen supply chamber 2 is connected to the regulating chamber 3. The first sleeve 21 is provided with a first annular groove 23 in the middle cavity of the oxygen supply chamber 2. The first annular groove 23 is provided with a first air inlet 24 that is connected to the interior of the first sleeve 21. A first valve core is provided inside the first sleeve 21. 25, one end of the first valve core 25 is limited to the bottom of the first sleeve 21, and the other end of the first valve core 25 is placed at the outer cavity opening of the oxygen supply chamber 2 and is provided with a first pressing cap 26, and a first spring 27 is provided between the first pressing cap 26 and the first sleeve 21. Under the action of the first spring 27, the first pressing cap 26 always has a tendency to pop outward, and the bottom and middle of the first valve core 25 are both fitted with the inner wall of the first sleeve 21 through a fourth sealing ring 28. A second annular groove 29 for communicating with the first air inlet hole 24 is formed between the part of the first valve core 25 located between the two fourth sealing rings 28 and the inner wall of the first sleeve 21. In the default state, under the action of the first spring 27, the fourth sealing ring 28 at the bottom of the first valve core 25 forms a fit with the inner wall of the first sleeve 21. As a result, after oxygen enters from the air inlet 4, it is guided by the first annular groove 23 and enters the regulating chamber 3. When the user presses the first pressing cap 26, the first spring 27 is compressed, allowing the fourth sealing ring 28 at the bottom of the first valve core 25 to break away from the interference with the first sleeve 21. As a result, the inner cavity of the first sleeve 21 and the inner cavity of the oxygen supply chamber 2 are instantly connected. A large amount of oxygen can enter the first sleeve 21 through the first air inlet 24 and then be discharged into the inner cavity of the oxygen supply chamber 2. The inner cavity of the oxygen supply chamber 2 is then connected to the air outlet 5, thereby instantly supplying oxygen at the maximum displacement. This mode is suitable for use when a large amount of oxygen is needed instantly. When the finger releases the pressure, the first spring 27 resets the mechanism, returning to the default state.
[0026] Furthermore, in order to add low-concentration or high-concentration oxygen, or other gases when necessary, the box body 1 of this embodiment is further provided with a dilution gas addition chamber 6 and a dilution gas replenishment inlet 7. The dilution gas replenishment inlet 7 is connected to the gas cylinder that needs auxiliary replenishment. A second sleeve 61 is fixedly installed inside the dilution gas addition chamber 6, and a fifth sealing ring 62 is provided at both ends of the second sleeve 61, so that the dilution gas addition chamber 6 is divided into an inner cavity, a middle cavity and an outer cavity. The inner cavity of the dilution gas addition chamber 6 is connected to the guide cavity 35 in the regulating cavity 3, and the middle cavity of the dilution gas addition chamber 6 is connected to the dilution gas replenishment inlet 7. The second sleeve 61 is located in the middle cavity of the dilution gas addition chamber 6 and is provided with a third annular groove 63. The third annular groove 63 is provided with a sealing ring that is connected to the second sleeve 6 1, a second air inlet hole 60 is connected to the interior of the second sleeve 61, a second valve core 64 is provided inside the second sleeve 61, one end of the second valve core 64 is limited to the bottom of the second sleeve 61, the other end of the second valve core 64 is placed at the outer cavity opening of the dilution gas adding chamber 6 and is provided with a second pressing cap 65, a second spring 66 is provided between the second pressing cap 65 and the second sleeve 61, and under the action of the second spring 66, the second pressing cap 66 always has a tendency to pop outward, the bottom and middle of the second valve core 64 are both fitted with the inner wall of the second sleeve 61 through the sixth sealing ring 67, and a fourth annular groove 68 for communicating with the second air inlet hole 60 is formed between the part of the second valve core 64 located between the two sixth sealing rings 67 and the inner wall of the second sleeve 61 The principle of diluent gas replenishment is similar to that of oxygen replenishment. In the default state, the sixth sealing ring 67 at the bottom of the second valve core 64 forms a fit with the inner wall of the second sleeve 61 under the action of the second spring 66, and the presence of the fifth sealing ring 62 cuts off the diluent gas replenishment. When the user presses the second pressing cap 65, the second spring 66 compresses, allowing the sixth sealing ring 67 at the bottom of the second valve core 64 to break free from the interference with the second sleeve 61, thereby connecting the inner cavity of the second sleeve 61 with the inner cavity of the diluent gas addition chamber 6. The diluent gas can enter the second sleeve 61 through the second air inlet 60 and then be discharged into the inner cavity of the diluent gas addition chamber 6. The inner cavity of the diluent gas addition chamber 6 is connected to the regulating chamber 3, thereby mixing the diluent gas with oxygen to provide oxygen. When the finger releases the pressure, the second spring 66 resets the switch to the default state again.
[0027] Furthermore, to prevent gas backflow, the air inlet 4 and the dilution gas supply port 7 of this embodiment are both provided with a gas circuit one-way valve 8 that only allows gas to be introduced into the box body.
[0028] Furthermore, in order to ensure the quality of the incoming gas, an air filter block 9 is provided at the valve port of the gas path one-way valve 8 in this embodiment, and the air filter block 9 is used to filter the incoming gas.
[0029] Furthermore, to prevent fingers from slipping, the surface of the knob 302 of this embodiment is provided with an anti-slip surface.
[0030] Furthermore, in order to better distinguish the two pressing caps, the first pressing cap 26 of this embodiment is placed inside the outer cavity opening of the oxygen supply chamber 2 , and the second pressing cap 65 is placed outside the outer cavity opening of the dilution gas addition chamber 6 .
[0031] The above are only preferred embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A semi-automatic variable flow air supply control module, characterized by: The invention comprises a box body, wherein an oxygen supply chamber, a regulating chamber, an air inlet and an air outlet are arranged inside the box body, the air inlet is used to be connected to an external oxygen cylinder, the air inlet is communicated with the oxygen supply chamber, a base is fixedly installed inside the regulating chamber, a first sealing ring is arranged between the side wall of the base and the cavity wall of the regulating chamber, and a conducting chamber is formed in the regulating chamber through the first sealing ring, the conducting chamber is communicated with the air outlet, the base is provided with a matching chamber, the base is provided with a guide hole at the guide cavity, the guide hole is communicated with the matching chamber, the matching chamber An adjusting rod is installed in the cavity through a thread, a second sealing ring is provided on the side of one end of the adjusting rod and a plug rod is provided at the end head, the plug rod is in the shape of a cone, and a plug hole corresponding to the shape of the plug rod is provided at the inner end of the base, the plug hole is connected with the oxygen supply cavity, the outer end surface of the base is provided with gear slots arranged in a ring array, the other end of the adjusting rod is provided with a knob placed outside the box body, the inner end surface of the knob is provided with at least one spring top ball, and the spring top ball is selectively inserted into a single gear slot.
2. A semi-automatic variable flow air supply control module according to claim 1, characterized in that: A first sleeve is fixedly installed inside the oxygen supply chamber, and third sealing rings are respectively provided at both ends of the first sleeve, so as to divide the oxygen supply chamber into an inner cavity, a middle cavity and an outer cavity. The inner cavity of the oxygen supply chamber is connected to the air outlet, and the middle cavity of the oxygen supply chamber is connected to the regulating chamber. The first sleeve is provided with a first annular groove at the middle cavity of the oxygen supply chamber, and a first air inlet hole communicating with the interior of the first sleeve is provided on the first annular groove. A first valve core is provided inside the first sleeve, and one end of the first valve core is limited to the bottom of the first sleeve, and the other end of the first valve core is placed at the outer cavity of the oxygen supply chamber and is provided with a first pressing cap. A first spring is provided between the first pressing cap and the first sleeve, and under the action of the first spring, the first pressing cap has a tendency to pop outward all the time. The bottom and middle part of the first valve core are both in contact with the inner wall of the first sleeve via fourth sealing rings. A second annular groove for communicating with the first air inlet hole is formed between the part of the first valve core located between the two fourth sealing rings and the inner wall of the first sleeve.
3. A semi-automatic variable flow air supply control module according to claim 2, characterized in that: The box body is also provided with a dilution gas addition chamber and a dilution gas supply inlet, a second sleeve is fixedly installed inside the dilution gas addition chamber, and fifth sealing rings are respectively provided at both ends of the second sleeve to divide the dilution gas addition chamber into an inner chamber, a middle chamber and an outer chamber opening, the inner chamber of the dilution gas addition chamber is communicated with the guide chamber in the regulating chamber, the middle chamber of the dilution gas addition chamber is communicated with the dilution gas supply inlet, the second sleeve is provided with a third annular groove at the middle chamber of the dilution gas addition chamber, the third annular groove is provided with a second air inlet hole communicated with the interior of the second sleeve, and the second sleeve A second valve core is provided inside, one end of the second valve core is limited to the bottom of the second sleeve, the other end of the second valve core is placed at the outer cavity opening of the dilution gas adding chamber and is provided with a second pressing cap, a second spring is provided between the second pressing cap and the second sleeve, and under the action of the second spring, the first pressing cap always has a tendency to pop outward, the bottom and middle of the second valve core are both fitted with the inner wall of the second sleeve through the sixth sealing ring, and a fourth annular groove for communicating with the second air inlet hole is formed between the part of the second valve core located between the two sixth sealing rings and the inner wall of the second sleeve.
4. A semi-automatic variable flow air supply control module according to claim 3, characterized in that: The air inlet and the dilution gas supply port are both provided with a gas circuit one-way valve that only allows gas to be introduced into the box body.
5. The semi-automatic variable flow air supply control module according to claim 4, characterized in that: An air filter block is provided at the valve port of the air path one-way valve.
6. A semi-automatic variable flow air supply control module according to claim 5, characterized in that: The surface of the knob is provided with an anti-slip surface.
7. The semi-automatic variable flow air supply control module according to claim 6, characterized in that: The first pressing cap is placed inside the outer cavity opening of the oxygen supply cavity, and the second pressing cap is placed outside the outer cavity opening of the dilution gas adding cavity.