Medical oxygen cylinder gas pressure regulating device

Abstract

The utility model discloses a medical oxygen cylinder gas pressure regulating device relates to medical oxygen cylinder technical field, and its technical key points include the gas outlet pipe of installing on the bottle body, be provided with two valve door subassembly on the gas outlet pipe, the valve door subassembly includes the fixed seat of fixed connection on the gas outlet pipe, the valve rod of rotation installation in the fixed seat, the gear of fixed mounting on the valve rod and be used for positioning the positioning piece to gear, the positioning piece includes the locating block of sliding installation in the fixed seat inboard wall, the abutment of first spring has one end of locating block, the one end fixed connection of locating block is close to first spring has pull rod. Technical effect is through setting up the positioning piece, can position gear, prevent gear rotation, and then can prevent valve rod and knob rotation, when knob is accidentally impacted or rubbed, the valve will not rotate, thereby guaranteeing normal use of the device.

Description

Technical Field

[0001] This utility model relates to the field of medical oxygen cylinder technology, specifically a gas pressure regulating device for medical oxygen cylinders. Background Technology

[0002] A portable medical oxygen cylinder is a portable device that can provide oxygen therapy. It is mainly used to treat respiratory diseases or to provide oxygen support in hypoxic environments such as high altitudes.

[0003] Currently, existing portable medical oxygen cylinders are usually equipped with a pressure regulating device, which includes an outlet tube installed on the top of the cylinder, two valves installed on the outlet tube, and a pressure gauge installed on the outlet tube. The two valves are the main valve and the flow valve, respectively, which can be used to regulate the pressure and flow of the gas, and the pressure value can be observed through the pressure gauge.

[0004] In the process of achieving the above, the inventors discovered at least the following problems with this technology: neither valve has a positioning structure. During use, if the valve knob is accidentally bumped or rubbed, the valve can easily rotate, causing changes in gas pressure and flow rate, affecting normal use. Therefore, we propose a gas pressure regulating device for medical oxygen cylinders. Utility Model Content

[0005] (a) Technical problems to be solved:

[0006] To address the shortcomings of existing technologies, this utility model provides a gas pressure regulating device for medical oxygen cylinders, which solves the problem that if the valve knob is accidentally bumped or rubbed during use, the valve may turn, causing changes in gas pressure and flow rate, thus affecting normal use.

[0007] (II) Technical Solution:

[0008] To achieve the above objectives, the present invention provides the following technical solution: a gas pressure regulating device for a medical oxygen cylinder, comprising an outlet pipe installed on the cylinder body, and two valve assemblies provided on the outlet pipe. The valve assembly includes a fixed seat fixedly connected to the outlet pipe, a valve rod rotatably installed in the fixed seat, a gear fixedly installed on the valve rod, and a positioning element for positioning the gear.

[0009] The positioning component includes a positioning block that is slidably mounted on the inner side wall of the fixed base. One end of the positioning block abuts against a first spring, and a pull rod is fixedly connected to the end of the positioning block near the first spring.

[0010] Preferably, a pressure gauge is provided on one side of the air outlet pipe.

[0011] Preferably, a knob is fixedly connected to one end of the valve stem.

[0012] Preferably, one end of the pull rod extends through the outer wall of the fixed base and is rotatably connected to a pull ring.

[0013] Preferably, a locking element is provided inside the fixing base on one side of the positioning element.

[0014] Preferably, the locking component includes an L-shaped locking rod slidably mounted in the fixed base and a second spring abutting against one side of the L-shaped locking rod, and a locking groove adapted to the L-shaped locking rod is provided on one side of the positioning block.

[0015] Preferably, a through hole is provided on the outer wall of the fixing base, and the L-shaped locking rod slides through the through hole.

[0016] (III) Beneficial Effects:

[0017] Compared with the prior art, the present invention provides a method with the following beneficial effects:

[0018] 1. This utility model, by setting a valve assembly, requires that when the pressure or flow of gas needs to be adjusted, the positioning of the gear must first be released by the positioning component. Then, the corresponding knob can be rotated, causing the knob to drive the valve stem to rotate, thereby realizing the valve adjustment. After the adjustment is completed, the gear can be positioned by the positioning component to prevent the gear from rotating, thereby preventing the valve stem and knob from rotating. When the knob is accidentally hit or rubbed, the valve will not rotate, thus ensuring the normal use of the device.

[0019] 2. This utility model incorporates a locking mechanism. When valve adjustment is required, the positioning block needs to be pulled out of the gear's tooth groove using a pull ring. To avoid continuously pulling the pull ring to maintain the positioning block's position, the positioning block moves the locking groove as it is pulled out. When the locking groove aligns with the L-shaped locking rod, the L-shaped locking rod pops out under the force of the second spring, inserting one end into the locking groove to lock the positioning block. At this point, the pull ring can be released to avoid the inconvenience of constantly pulling it. After adjustment, the L-shaped locking rod can be moved towards the second spring to remove one end from the locking groove, releasing the positioning block's lock. The positioning block then pops out under the force of the first spring, automatically inserting into the gear's tooth groove to position the gear, thus increasing ease of use. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the valve assembly of this utility model;

[0022] Figure 3 This is a cross-sectional structural diagram of the valve assembly of this utility model;

[0023] Figure 4 This utility model Figure 3 A schematic diagram of the top-view cross-sectional structure at the center positioning block.

[0024] In the picture:

[0025] 1. Air outlet pipe;

[0026] 2. Valve assembly; 21. Mounting seat; 22. Valve stem; 23. Gear; 24. Positioning element; 241. Positioning block; 242. First spring; 243. Pull rod; 244. Pull ring; 245. Locking groove; 25. Knob; 26. Locking element; 261. L-shaped locking rod; 262. Second spring; 27. Through hole;

[0027] 3. Pressure gauge. Detailed Implementation

[0028] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0029] This utility model provides a technical solution:

[0030] Please see Figures 1-4 A gas pressure regulating device for a medical oxygen cylinder includes an outlet pipe 1 installed on the cylinder body. Two valve assemblies 2 are provided on the outlet pipe 1. The two valve assemblies 2 are used to control the main switch of the gas cylinder and the flow valve, respectively, and can be used to regulate the gas pressure and flow rate. A pressure gauge 3 is provided on one side of the outlet pipe 1, and the gas pressure can be displayed through the pressure gauge 3.

[0031] Reference Figures 2-3The valve assembly 2 includes a fixed base 21 fixedly connected to the gas outlet pipe 1, a valve stem 22 rotatably installed in the fixed base 21, a gear 23 fixedly installed on the valve stem 22, and a positioning element 24 for positioning the gear 23. A knob 25 is fixedly connected to one end of the valve stem 22. By setting the valve assembly 2, when it is necessary to adjust the gas pressure or flow, the positioning element 24 is used to release the positioning of the gear 23. Then, the corresponding knob 25 can be rotated, causing the knob 25 to drive the valve stem 22 to rotate, thereby realizing the adjustment of the valve. After the adjustment is completed, the positioning element 24 can be used to position the gear 23 to prevent the gear 23 from rotating, thereby preventing the valve stem 22 and the knob 25 from rotating. When the knob 25 is accidentally bumped or rubbed, the valve will not rotate, thus ensuring the normal use of the device.

[0032] Specifically, the positioning component 24 includes a positioning block 241 slidably mounted on the inner wall of the fixed base 21. One end of the positioning block 241 abuts against a first spring 242. A pull rod 243 is fixedly connected to the end of the positioning block 241 near the first spring 242. One end of the pull rod 243 passes through the outer wall of the fixed base 21 and is rotatably connected to a pull ring 244. By setting the positioning component 24, under normal conditions, the positioning block 241 is affected by the elastic force of the first spring 242, causing the positioning block 241 to move towards the gear 23, so that the positioning block 241 is inserted into the tooth groove of the gear 23, which can position the gear 23 and prevent the gear 23 from rotating. When it is necessary to adjust the valve, the pull ring 244 can be pulled, causing the pull ring 244 to drive the pull rod 243 to slide. The positioning block 241 is pulled out from the tooth groove of the gear 23 through the pull rod 243, releasing the positioning of the gear 23, and the knob 25 can be rotated.

[0033] Furthermore, a locking element 26 is provided inside the fixed base 21 on one side of the positioning element 24. The locking element 26 includes an L-shaped locking rod 261 slidably installed in the fixed base 21 and a second spring 262 abutting against one side of the L-shaped locking rod 261. A through hole 27 is provided on the outer wall of the fixed base 21, and the L-shaped locking rod 261 slides through the through hole 27. A locking groove 245 adapted to the L-shaped locking rod 261 is provided on one side of the positioning block 241. By setting the locking element 26, when the valve needs to be adjusted, the positioning block 241 needs to be pulled out from the tooth groove of the gear 23 by the pull ring 244. In order to avoid continuously pulling the pull ring 244 to keep the positioning block 241 in position, when the positioning block 241 is pulled out from the tooth groove of the gear 23, the positioning block... 241 will drive the locking groove 245 to move. When the locking groove 245 moves to align with the L-shaped locking rod 261, the L-shaped locking rod 261 will pop out under the elastic force of the second spring 262, so that one end of the L-shaped locking rod 261 is inserted into the locking groove 245, thereby locking the positioning block 241. At this time, the pull ring 244 can be released to avoid the trouble caused by constantly pulling the pull ring 244. After the adjustment is completed, the L-shaped locking rod 261 can be moved in the direction of the second spring 262 to move one end of the L-shaped locking rod 261 out of the locking groove 245, releasing the lock of the positioning block 241. The positioning block 241 will pop out under the elastic force of the first spring 242, so that the positioning block 241 automatically inserts into the tooth groove of the gear 23 to position the gear 23.

[0034] In practical use, the working principle of this utility model is as follows:

[0035] First, under normal conditions, the positioning block 241 is affected by the elastic force of the first spring 242, causing the positioning block 241 to move toward the gear 23, so that the positioning block 241 is inserted into the tooth groove of the gear 23, which can position the gear 23 and prevent the gear 23 from rotating.

[0036] Next, when valve adjustment is required, pull ring 244 can be pulled, causing pull ring 244 to slide along pull rod 243. Pull rod 243 pulls positioning block 241 out of gear 23, releasing gear 23 from positioning. When positioning block 241 is pulled out of gear 23, positioning block 241 will move locking groove 245. When locking groove 245 moves to align with L-shaped locking rod 261, L-shaped locking rod 261 will pop out under the elastic force of second spring 262, so that one end of L-shaped locking rod 261 is inserted into locking groove 245, thus locking positioning block 241. At this time, pull ring 244 can be released, and then corresponding knob 25 can be rotated, causing knob 25 to rotate valve stem 22, thereby realizing valve adjustment.

[0037] After adjustment, the L-shaped locking lever 261 can be moved towards the second spring 262 to remove one end of the L-shaped locking lever 261 from the locking groove 245, thereby releasing the locking of the positioning block 241. The positioning block 241 will then pop out under the elastic force of the first spring 242, causing the positioning block 241 to automatically insert into the tooth groove of the gear 23, positioning the gear 23 and preventing it from rotating. This, in turn, prevents the valve stem 22 and the knob 25 from rotating. If the knob 25 is accidentally bumped or rubbed, the valve will not rotate.

[0038] In summary, the gas pressure regulating device for the medical oxygen cylinder, by setting the positioning element 24, can position the gear 23 and prevent the gear 23 from rotating, thereby preventing the valve stem 22 and the knob 25 from rotating. When the knob 25 is accidentally bumped or rubbed, the valve will not rotate, thus ensuring the normal use of the device.

[0039] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. A gas pressure regulating device for a medical oxygen cylinder, comprising an outlet pipe (1) installed on the cylinder body, characterized in that: Two valve assemblies (2) are provided on the air outlet pipe (1). The valve assembly (2) includes a fixed seat (21) fixedly connected to the air outlet pipe (1), a valve stem (22) rotatably installed in the fixed seat (21), a gear (23) fixedly installed on the valve stem (22), and a positioning element (24) for positioning the gear (23). The positioning component (24) includes a positioning block (241) that is slidably mounted on the inner wall of the fixed base (21). One end of the positioning block (241) abuts against a first spring (242), and a pull rod (243) is fixedly connected to the end of the positioning block (241) near the first spring (242).

2. The gas pressure regulating device for a medical oxygen cylinder according to claim 1, characterized in that: A pressure gauge (3) is installed on one side of the air outlet pipe (1).

3. The gas pressure regulating device for a medical oxygen cylinder according to claim 1, characterized in that: A knob (25) is fixedly connected to one end of the valve stem (22).

4. The gas pressure regulating device for a medical oxygen cylinder according to claim 1, characterized in that: One end of the pull rod (243) passes through the outer wall of the fixed base (21) and is rotatably connected to a pull ring (244).

5. A gas pressure regulating device for a medical oxygen cylinder according to claim 1, characterized in that: The fixing base (21) has a locking element (26) located on one side of the positioning element (24) inside.

6. A gas pressure regulating device for a medical oxygen cylinder according to claim 5, characterized in that: The locking element (26) includes an L-shaped locking rod (261) that is slidably installed in the fixed base (21) and a second spring (262) that abuts against one side of the L-shaped locking rod (261). The positioning block (241) has a locking groove (245) that is adapted to the L-shaped locking rod (261) on one side.

7. A gas pressure regulating device for a medical oxygen cylinder according to claim 6, characterized in that: The outer wall of the fixed base (21) is provided with a through hole (27), and the L-shaped locking rod (261) slides through the through hole (27).

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