Oxygen supply pipeline for oxygen supply pressure reducer

Abstract

An oxygen supply pipeline for an oxygen pressure regulator, relating to the technical field of pressure reducing devices, includes a connecting cap, a connector, an oxygen supply hose, and an anti-disconnection device. The anti-disconnection device comprises a quick-connect socket, a locking plate, and a locking spring. The locking plate and locking spring cooperate to achieve automatic locking, preventing oxygen supply interruption. The connecting cap communicates with the low-pressure chamber of the oxygen pressure regulator via a safety valve. The safety valve includes an output housing, a valve core, a pressure adjusting screw, and a pressure adjusting spring, ensuring normal oxygen delivery and preventing safety accidents caused by excessive pressure. This utility model's oxygen supply pipeline has a simple structure, is easy to assemble, has low production costs, and can effectively improve the continuity, stability, and safety of oxygen supply, meeting the oxygen supply needs of different scenarios.

Description

Technical Field

[0001] This utility model relates to the field of pressure reducing device technology, and in particular to an oxygen supply pipeline for an oxygen supply pressure reducing device. Background Technology

[0002] In numerous oxygen supply scenarios, such as the medical field, industrial welding, aerospace, and deep-sea diving, oxygen is a critical resource. A stable and reliable supply plays a vital role in ensuring the normal operation of equipment, the health and safety of personnel, and the smooth progress of various operations. Currently, there are some unresolved issues regarding the connection between the oxygen pressure regulator and the oxygen supply pipeline, as well as the connection between the oxygen supply pipeline and the equipment to be supplied with oxygen.

[0003] Traditional oxygen supply lines are often connected simply using threaded connections. However, in practice, when tightening the connecting parts, the oxygen supply hose can easily rotate, leading to twisting and deformation over time. Once the oxygen supply hose is twisted, it significantly affects the smooth delivery of oxygen, reducing oxygen supply efficiency. In situations where timely oxygen supply is critical, such as during emergency medical surgery, it can even threaten the patient's life and cause serious consequences.

[0004] In the connection between the oxygen supply pipeline and the equipment to be supplied with oxygen, most existing connection structures lack effective anti-detachment designs. During use, oxygen supply pipelines may be subject to various external forces, such as frequent movement or vibration of the equipment. These conditions can cause the connection between the oxygen supply hose and the equipment to unexpectedly separate, thus momentarily interrupting the oxygen supply. For precision instruments and life support equipment that require extremely continuous oxygen supply, such an unexpected disconnection would be catastrophic, potentially damaging expensive equipment and causing irreparable personal injury.

[0005] Given the shortcomings of existing oxygen supply pipeline connection technologies, such as twisting caused by rotation and lack of reliable anti-detachment function, there is an urgent need for an oxygen supply pipeline solution that can effectively prevent twisting of the oxygen supply hose during screwing and ensure a stable connection with the oxygen supply equipment during the oxygen supply process, so as to meet the urgent needs for oxygen supply safety, stability and reliability in different oxygen supply scenarios. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art, this utility model discloses an oxygen supply pipeline for an oxygen supply pressure reducer.

[0007] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:

[0008] An oxygen supply pipeline for an oxygen pressure regulator, comprising:

[0009] Connecting cap, for threaded connection to the oxygen supply pressure regulator;

[0010] The connector head is rotatably connected to the connector cap;

[0011] The oxygen supply hose has one end connected to the corresponding connector.

[0012] An anti-detachment device is installed on the end of the oxygen supply hose away from the connector.

[0013] Preferably, the anti-detachment device includes:

[0014] The quick-connect socket has one end connected to the oxygen supply hose and the other end has a socket for plugging in a plug; the plug has a ring groove.

[0015] The locking plate is slidably connected to the socket end of the quick-connect socket, and the surface of the locking plate is provided with an opening that can correspond to and overlap with the socket. When the opening and the socket are misaligned, the locking plate engages with the annular groove on the plug to achieve the anti-disconnection function. One end of the locking plate extends out of the quick-connect socket, and this end of the locking plate is provided with a bent part.

[0016] A locking spring is installed between the bent part of the locking plate and the quick-connect socket to keep the opening of the locking plate and the socket of the quick-connect socket misaligned.

[0017] Preferably, the locking plate has a strip-shaped slot at one end away from its bent portion, and a spring pin and a spring for popping out the spring pin are movably inserted into the quick-connect socket at the position corresponding to the strip-shaped slot; the spring pin rod has a clearance ring groove that corresponds to and matches the strip-shaped slot of the locking plate, and the locking plate can slide freely when the clearance ring groove is aligned with the strip-shaped slot, otherwise the locking plate is locked.

[0018] Preferably, the connecting cap is connected to the low-pressure chamber of the oxygen supply pressure reducer via a safety valve.

[0019] Preferably, the safety valve includes:

[0020] The output housing has a T-shaped air passage inside. The first port of the T-shaped air passage is connected to the oxygen supply regulator, and the second port is connected to the oxygen supply hose. The output housing has a valve chamber at the third port of the T-shaped air passage.

[0021] The valve core is installed inside the valve cavity;

[0022] A pressure adjusting screw is threadedly connected to the output housing; the pressure adjusting screw has a through hole along its axial direction.

[0023] The pressure adjusting spring is located between the pressure adjusting screw and the valve core.

[0024] Preferably, the adjusting screw rod is threaded with a locking nut that can abut against the output housing.

[0025] By adopting the technical solution described above, this utility model has the following beneficial effects:

[0026] This utility model discloses an oxygen supply pipeline for an oxygen pressure regulator, which has a simple structure, is easy to assemble, and has low production costs. The innovative design of the anti-disconnection device effectively avoids the risk of oxygen supply interruption. Through the cooperation of the locking plate and the locking spring, the oxygen supply hose can be securely locked after being connected to the equipment to be supplied with oxygen. As in Embodiment 1, when the plug is inserted and the locking plate is released, it slides automatically under the action of the locking spring, the opening and the insertion hole are misaligned, and the locking plate is locked on the plug ring groove, realizing automatic locking, ensuring the continuity and stability of oxygen supply, and ensuring the safety and reliability of oxygen use in the equipment.

[0027] This invention further optimizes the structure of the locking plate, improving operational convenience and locking stability. A strip-shaped slot is added, which, in conjunction with a spring pin and spring, allows the locking plate to be pressed when the plug is unplugged, aligning the opening with the insertion hole. The spring pin springs up, preventing the locking plate from automatically resetting, facilitating quick plug insertion. After the plug is inserted, it presses against the spring pin, aligning the annular groove with the strip-shaped slot. The locking plate then slides and engages under the action of the locking spring, ensuring stable locking and improving operational efficiency and the device's practicality.

[0028] This invention further optimizes the connection method between the connecting cap and the low-pressure chamber of the oxygen supply regulator, introducing a safety valve to greatly enhance the safety performance of the device. During normal operation, the pressure regulating spring presses against the valve core to seal the gas path port, ensuring normal oxygen delivery. When the oxygen supply hose or equipment becomes blocked, causing excessive pressure, the valve core is opened, releasing excess gas and preventing accidents. Simultaneously, the design of the pressure regulating screw and locking nut allows for flexible adjustment and locking of the pressure relief, ensuring the long-term stability and safety of the device, meeting oxygen supply needs in different scenarios, and providing strong support for the use of oxygen supply equipment. Attached Figure Description

[0029] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0030] Figure 2 This is a cross-sectional view of the connector cap;

[0031] Figure 3 This is a cross-sectional view of the anti-detachment device;

[0032] Figure 4 A schematic diagram of the connection structure between the safety valve and the connecting cap;

[0033] Figure 5 This is a cross-sectional view of a safety valve.

[0034] In the diagram: 1. Connecting cap; 2. Connector head; 3. Oxygen supply hose; 4. Anti-disconnection device; 4-1. Quick-connect socket; 4-2. Locking plate; 4-3. Locking spring; 4-4. Spring pin; 4-5. Spring; 5. Safety valve; 5-1. Output housing; 5-2. Valve core; 5-3. Pressure adjusting screw; 5-4. Pressure adjusting spring; 5-5. Locking nut. Detailed Implementation

[0035] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0036] In the description of this utility model, it should be noted that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. They are only used to facilitate the description of this utility model and to simplify the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0037] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0038] Example 1:

[0039] Combined with appendix Figures 1-3An oxygen supply pipeline for an oxygen supply regulator includes a connecting cap 1, a connector 2, an oxygen supply hose 3, and an anti-detachment device 4. The connecting cap 1 is threadedly connected to the oxygen supply regulator; the connector 2 is rotatably connected to the connecting cap 1, and one end of the oxygen supply hose 3 is correspondingly connected to the connector 2. The connector 2 and the connecting cap 1 can rotate relative to each other, but the oxygen supply hose 3 does not rotate when the connecting cap 1 is tightened, preventing the oxygen supply hose 3 from twisting. The oxygen supply hose 3 is connected to the low-pressure chamber of the oxygen supply regulator, allowing oxygen from the oxygen cylinder to be delivered to the equipment to meet its oxygen requirements. The end of the oxygen supply hose 3 facing away from the connector 2 is equipped with the anti-detachment device 4. This anti-detachment device 4 prevents the oxygen supply hose 3 from accidentally separating from the equipment during oxygen supply, effectively avoiding oxygen supply interruptions caused by accidental detachment of the oxygen supply hose 3.

[0040] Specifically, the anti-disconnection device 4 mainly consists of three parts: a quick-connect socket 4-1, a locking plate 4-2, and a locking spring 4-3. One end of the quick-connect socket 4-1 is connected to the oxygen supply hose 3 to ensure smooth oxygen delivery; the other end has a socket for inserting the plug of the oxygen supply device, which has a ring groove. A sliding groove is provided at the socket end of the quick-connect socket 4-1, and the locking plate 4-2 is slidably installed within the groove. The locking plate 4-2 has an opening on its surface that aligns with the socket. When the opening aligns with the socket, the plug of the oxygen supply device can be smoothly inserted into the socket of the quick-connect socket 4-1; when the opening is misaligned, the locking plate 4-2 engages with the ring groove on the plug, thus preventing accidental disconnection during oxygen supply and ensuring the continuity and stability of the oxygen supply.

[0041] One end of the locking plate 4-2 extends out of the quick-connect socket 4-1 and has a bend at that end, a design that facilitates manual operation. A locking spring 4-3 is installed between the bend of the locking plate 4-2 and the quick-connect socket 4-1. Its function is to keep the opening of the locking plate 4-2 and the socket of the quick-connect socket 4-1 in a misaligned state, thereby achieving automatic locking under normal conditions.

[0042] When the plug of the oxygen supply equipment is inserted into the socket of the quick-connect socket 4-1, the locking plate 4-2 is released. At this time, the locking plate 4-2 slides automatically under the elastic force of the locking spring 4-3, causing the opening and the socket to be misaligned. The locking plate 4-2 then locks onto the annular groove of the plug, thereby locking the plug and preventing it from accidentally falling off, ensuring the safety and reliability of the oxygen supply process.

[0043] Example 2:

[0044] Combined with appendix Figure 3Further improvements and refinements were made to the oxygen supply pipeline for the oxygen pressure regulator. Based on Embodiment 2, the structure of the locking plate 4-2 was optimized. Specifically, a strip-shaped slot was added to the end of the locking plate 4-2 away from its bent portion. Correspondingly, a spring pin 4-4 and a spring 4-5 for popping out the spring pin 4-4 were movably inserted into the quick-connect socket 4-1 at the position corresponding to the strip-shaped slot. At the same time, a clearance ring groove corresponding to and adapted to the strip-shaped slot of the locking plate 4-2 was provided on the rod of the spring pin 4-4. When the clearance ring groove and the strip-shaped slot are aligned, the locking plate 4-2 can slide freely; conversely, if the two are not aligned, the locking plate 4-2 will be locked and cannot slide, thereby ensuring the stability and reliability of the locked state.

[0045] With the plug unplugged, the operator can press the bent part of the locking plate 4-2 to align the opening with the socket. At this time, the spring pin 4-4 automatically springs up under the action of the spring 4-5. Since the diameter of the spring pin 4-4 is larger than the width of the slot in the locking plate 4-2, the locking plate 4-2 cannot automatically reset under the action of the locking spring 4-3, thus keeping the opening and socket aligned. This design allows the operator to quickly insert the plug of the oxygen supply equipment into the socket of the quick-connect socket 4-1, improving the convenience and efficiency of operation.

[0046] When the plug of the oxygen supply device is inserted into the socket of the quick-connect socket 4-1, the plug presses against the spring pin 4-4, aligning the clearance groove of the spring pin 4-4 with the strip slot. At this time, the locking plate 4-2 can slide freely. Under the elastic force of the locking spring 4-3, the locking plate 4-2 slides, causing the opening and socket to misalign. The locking plate 4-2 then locks onto the ring groove of the plug, thereby locking the plug and ensuring the stable operation of the oxygen supply process.

[0047] When it is necessary to unplug the oxygen supply equipment, the operator can first press the bent part of the locking plate 4-2 to align the opening with the socket, at which point the plug can be easily unplugged. After the spring pin 4-4 pops out, the locking plate 4-2 is released, at which point the locking plate 4-2 is locked, thus facilitating the next plugging and unplugging operation, improving the convenience and efficiency of the device.

[0048] Example 3:

[0049] Combined with appendix Figures 4-5 An oxygen supply pipeline for an oxygen supply pressure reducer is proposed. Based on either embodiment 1 or 2, the connection method between the connecting cap 1 and the low-pressure chamber of the oxygen supply pressure reducer is optimized, and a key component, the safety valve 5, is introduced to enhance the safety performance and reliability of the device.

[0050] The safety valve 5 mainly includes an output housing 5-1, a valve core 5-2, a pressure adjusting screw 5-3, and a pressure adjusting spring 5-4. The output housing 5-1 has a T-shaped air passage inside. The first port of the T-shaped air passage is connected to the oxygen supply regulator, and the second port is connected to the connecting cap 1, thus realizing the delivery and flow of oxygen. A valve chamber is provided at the third port of the T-shaped air passage in the output housing 5-1, and the valve core 5-2 is installed in the valve chamber, which can seal the third port of the T-shaped air passage to prevent gas leakage. A pressure adjusting screw 5-3 is threadedly connected to the valve chamber in the output housing 5-1. The pressure adjusting screw 5-3 has a through hole along its axial direction to discharge excess gas when needed. A pressure adjusting spring 5-4 is installed between the pressure adjusting screw 5-3 and the valve core 5-2. The action of the valve core 5-2 is controlled by adjusting the elastic force of the pressure adjusting spring 5-4, thereby realizing the regulation and control of the air passage pressure.

[0051] Under normal operating conditions, the pressure regulating spring 5-4 presses against the valve core 5-2, ensuring it fits tightly within the valve cavity and sealing the third port of the T-shaped gas path. This guarantees the normal delivery of oxygen to the oxygen supply hose 3 and the equipment to be supplied. When the oxygen supply hose 3 or the equipment downstream of it becomes blocked, the pressure within the T-shaped gas path gradually increases. Once the pressure exceeds the set spring force of the pressure regulating spring 5-4, the valve core 5-2 will be opened. Excess gas will then be discharged through the through hole of the pressure regulating screw 5-3, effectively preventing safety accidents caused by excessive pressure and improving the safety and reliability of the device.

[0052] Furthermore, the adjusting screw 5-3 is threaded with a locking nut 5-5, which engages with the output housing 5-1. The operator can precisely adjust the pressure exerted by the adjusting spring 5-4 on the valve core 5-2 by turning the adjusting screw 5-3, thereby achieving flexible adjustment and control of the pressure relief. After adjustment to the appropriate position, the operator can turn the locking nut 5-5 to ensure a tight fit with the output housing 5-1, thus locking the position of the adjusting screw 5-3. This prevents the adjusting screw 5-3 from accidentally loosening due to vibration or other external forces during subsequent use, which could alter the pressure relief and ensure the stability and safety of the device during long-term use.

[0053] Through the above design and optimization, the oxygen supply pipeline for the oxygen pressure reducer in this example is not only more functional and able to meet the oxygen supply needs in different scenarios, but also significantly improved in terms of safety performance, ease of operation and reliability, providing a strong guarantee for the normal use of oxygen supply equipment.

[0054] The parts of this utility model not described in detail are prior art. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that this utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and are intended to include all changes that fall within the meaning and scope of equivalents within this utility model.

Claims

1. An oxygen supply pipeline for an oxygen pressure regulator, characterized in that, include: Connecting cap (1), threaded connection to oxygen supply pressure reducer; Connector (2) is rotatably connected to connector (1); The oxygen supply hose (3) is connected at one end to the connector (2); An anti-detachment device (4) is installed on the end of the oxygen supply hose (3) away from the connector (2).

2. The oxygen supply pipeline for the oxygen supply pressure reducer as described in claim 1, characterized in that, The anti-detachment device (4) includes: A quick-connect socket (4-1) has one end connected to the oxygen supply hose (3) and the other end has a socket for plugging in a plug; the plug has an annular groove. The locking plate (4-2) is slidably connected to the socket end of the quick-connect socket (4-1), and the surface of the locking plate (4-2) is provided with an opening that can correspond to and overlap with the socket. When the opening and the socket are misaligned, the locking plate (4-2) engages with the annular groove on the plug to achieve the anti-disconnection function. One end of the locking plate (4-2) extends out of the quick-connect socket (4-1), and this end of the locking plate (4-2) is provided with a bent part. A locking spring (4-3) is installed between the bent part of the locking plate (4-2) and the quick-connect socket (4-1) to keep the opening of the locking plate (4-2) and the socket of the quick-connect socket (4-1) misaligned.

3. The oxygen supply pipeline for the oxygen supply pressure reducer as described in claim 2, characterized in that: The locking plate (4-2) has a strip-shaped slot at one end away from its bent portion. A spring pin (4-4) and a spring (4-5) for popping out the spring pin (4-4) are movably inserted into the quick-connect socket (4-1) at the position corresponding to the strip-shaped slot. The spring pin (4-4) has a relief ring groove that matches the strip-shaped slot of the locking plate (4-2). When the relief ring groove is aligned with the strip-shaped slot, the locking plate (4-2) can slide freely. Otherwise, the locking plate (4-2) is locked.

4. The oxygen supply pipeline for the oxygen supply pressure reducer as described in claim 1, characterized in that: The connecting cap (1) is connected to the low-pressure chamber of the oxygen supply pressure reducer via a safety valve (5).

5. The oxygen supply pipeline for the oxygen supply regulator as described in claim 4, characterized in that, The safety valve (5) includes: The output housing (5-1) has a T-shaped air passage inside. The first port of the T-shaped air passage is connected to the oxygen supply pressure regulator, and the second port is connected to the oxygen supply hose (3). The output housing (5-1) has a valve chamber at the third port of the T-shaped air passage. Valve core (5-2) is installed inside the valve cavity; The adjusting screw (5-3) is threadedly connected to the output housing (5-1); the adjusting screw (5-3) has a through hole along its axial direction; The pressure adjusting spring (5-4) is located between the pressure adjusting screw (5-3) and the valve core (5-2).

6. The oxygen supply pipeline for the oxygen supply regulator as described in claim 5, characterized in that: The adjusting screw (5-3) has a threaded connection to a locking nut (5-5) that can abut against the output housing (5-1).

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