A replaceable pressure reducing valve structure for medical oxygen cylinders

Abstract

This utility model discloses a replaceable pressure reducing valve structure for medical oxygen cylinders, including a pressure reducing valve body. A high-pressure gauge is installed on one side of the top of the pressure reducing valve body, and a low-pressure gauge is installed in the middle of the top of the pressure reducing valve body. Protective mechanisms are provided on both sides of the outer wall of the pressure reducing valve body. Arc-shaped connectors are fixedly connected to both ends of the pressure reducing valve body, and a locking nut is inserted through the outer wall of each arc-shaped connector. The protective mechanism includes a movable ring, and a U-shaped seat is fixedly provided at the top and bottom of the movable ring. This utility model, by providing a protective mechanism on the pressure reducing valve body, and rotatably connecting a movable block inside the U-shaped seat on the movable ring, and connecting a protective cover to the movable block, can protect the pressure reducing valve end when it is not in use or after the pressure reducing valve end is connected, preventing the accumulation of dust and other impurities, ensuring its hygiene standards, and meeting medical needs.

Description

Technical Field

[0001] This utility model relates to the field of pressure reducing valve technology, specifically a pressure reducing valve structure for a medical oxygen cylinder that is easy to replace. Background Technology

[0002] Oxygen cylinders are frequently used in medical care. They are devices that store oxygen by filling it under high pressure. Because the pressure of the oxygen stored inside the cylinder is many times higher than the external atmospheric pressure, it can store a large amount of oxygen at a time. When people need to use oxygen, a pressure reducing valve installed at the cylinder opening is used to convert the high-pressure oxygen to normal atmospheric pressure before it can be used.

[0003] In response to this, utility model patent CN203948726U discloses an oxygen cylinder pressure reducing valve, which includes a valve body with an inlet and an outlet. A high-pressure gas gauge is installed at the inlet, and a low-pressure gas gauge is installed at the outlet. An adjusting bolt is installed at the bottom of the valve body, with a return spring connected to the upper part of the adjusting bolt. The upper end of the return spring is fixed to a spring pad, and a transmission partition is installed on the spring pad, dividing the inner cavity of the valve body into upper and lower chambers. A push rod is fixed to the upper end of the transmission partition, with its upper end connected to a piston. A compression spring is connected to the upper end of the piston, and the other end of the compression spring is fixed to the top of the valve body. A piston chamber is also provided in the valve body, separating the inlet and outlet channels. The side of the piston chamber communicates with the inlet, and a vent is provided at the bottom of the piston chamber, facing the transmission partition. The outlet communicates with the upper chamber. This utility model has good control accuracy, good safety performance, and is easy to operate.

[0004] However, the pressure reducing valve in the aforementioned patent application still has some problems: the existing pressure reducing valve structure is difficult to protect its end. If the pressure reducing valve end is exposed for a long time, it will cause dust and other impurities to accumulate at its end, making it difficult to meet medical requirements. At the same time, when the pressure reducing valve is used in the medical field, when the oxygen cylinder is used up, the personnel need to quickly replace the pressure reducing valve. Utility Model Content

[0005] To address the aforementioned problems, the purpose of this invention is to provide a replaceable pressure reducing valve structure for medical oxygen cylinders, thereby resolving the issues raised in the background section.

[0006] To achieve the above objectives, this utility model proposes a pressure reducing valve structure for easy replacement of medical oxygen cylinders, including a pressure reducing valve body, a high pressure gauge installed on one side of the top of the pressure reducing valve body, a low pressure gauge installed in the middle of the top of the pressure reducing valve body, and protective mechanisms provided on both sides of the outer wall of the pressure reducing valve body.

[0007] Both ends of the pressure reducing valve body are fixedly connected to arc-shaped connectors. Each arc-shaped connector has a locking nut inserted through its outer wall, and a retaining ring is fixedly provided on one side of the outer wall of each arc-shaped connector. A sealing ring is fixedly provided on the inner wall of the locking nut. The protective mechanism includes a movable ring. A U-shaped seat is fixedly provided at the top and bottom of the movable ring. A movable block is rotatably connected inside each U-shaped seat. A protective cover is fixedly provided at one end of each movable block.

[0008] As a preferred technical solution of this utility model, a safety valve is installed in the middle of the bottom end of the pressure reducing valve body, and both ends of one side of the pressure reducing valve body are fixedly provided with directional markings.

[0009] As a preferred embodiment of this utility model, the valve stem of the pressure reducing valve body is provided with a connecting screw hole, and an adjusting rod is internally threaded into the connecting screw hole.

[0010] As a preferred embodiment of this utility model, one of the protective covers is fixedly provided with an L-shaped elastic element on one side, and the other protective cover is fixedly provided with a connecting block on one side.

[0011] As a preferred embodiment of this utility model, the top of the connecting block is provided with a mating groove, the inner wall of the mating groove is inserted and connected to the outer wall of the L-shaped elastic element, and a diagonal strip is fixedly provided on one side of the L-shaped elastic element.

[0012] As a preferred embodiment of this utility model, a movable channel communicating with the docking groove is provided on one side of the connecting block, and a limit rod is rotatably connected to the inner wall of the movable channel.

[0013] As a preferred embodiment of this utility model, a support spring is fixedly provided at the bottom of the inner wall of the movable channel, and the top end of the support spring is fixedly connected to one side of the bottom end of the limiting rod.

[0014] Compared with the prior art, this utility model provides a medical oxygen cylinder pressure reducing valve structure that is easy to replace, and has the following beneficial effects:

[0015] 1. The easily replaceable medical oxygen cylinder pressure reducing valve structure features a protective mechanism on the valve body. A movable block is rotatably connected to the U-shaped seat on the movable ring, and a protective cover is connected to the movable block. When the pressure reducing valve is not in use or after the valve end is connected, the valve end can be protected to prevent the accumulation of dust and other impurities, ensuring hygiene standards are met and medical needs are met.

[0016] 2. The easily replaceable medical oxygen cylinder pressure reducing valve structure has an arc-shaped connector connected to the valve body. The arc-shaped connector is equipped with a locking nut, which makes it easier for personnel to disassemble and replace the pressure reducing valve. The valve body is marked with directional markings to prevent personnel from installing the pressure reducing valve incorrectly, making it more convenient to use. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the connection structure of the pressure reducing valve body of this utility model;

[0020] Figure 3 This is a schematic diagram of the protective mechanism of this utility model;

[0021] Figure 4 This is a schematic diagram of the connection structure between the L-shaped elastic element and the connecting block of this utility model.

[0022] In the diagram: 1. Pressure reducing valve body; 2. High pressure gauge; 3. Low pressure gauge; 4. Protective mechanism; 401. Moving ring; 402. U-shaped seat; 403. Moving block; 404. Protective cover; 405. L-shaped elastic element; 406. Connecting block; 407. Docking groove; 408. Diagonal bar; 409. Moving channel; 410. Limiting rod; 411. Support spring; 5. Safety valve; 6. Adjusting rod; 7. Arc-shaped connector; 8. Locking nut; 9. Direction indicator. Detailed Implementation

[0023] The technology of the present invention will now be described with reference to the accompanying drawings of the embodiments thereof.

[0024] The solution is described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] like Figures 1-4 As shown, the present invention provides a medical oxygen cylinder pressure reducing valve structure that is easy to replace, including a pressure reducing valve body 1, a high pressure gauge 2 installed on one side of the top of the pressure reducing valve body 1, a low pressure gauge 3 installed in the middle of the top of the pressure reducing valve body 1, and protective mechanisms 4 provided on both sides of the outer wall of the pressure reducing valve body 1.

[0026] Both ends of the pressure reducing valve body 1 are fixedly connected to arc-shaped connectors 7. Each arc-shaped connector 7 has a locking nut 8 inserted through its outer wall. Each arc-shaped connector 7 has a retaining ring fixed on one side of its outer wall. The inner wall of the locking nut 8 has a sealing ring fixed. A safety valve 5 is installed in the middle of the bottom end of the pressure reducing valve body 1. Both ends of one side of the pressure reducing valve body 1 have a direction indicator 9 fixed. The valve stem of the pressure reducing valve body 1 has a connecting screw hole. An adjusting rod 6 is connected to the internal thread of the connecting screw hole.

[0027] The protective mechanism 4 includes a movable ring 401. A U-shaped seat 402 is fixedly provided at both the top and bottom of the movable ring 401. A movable block 403 is rotatably connected within each U-shaped seat 402. A protective cover 404 is fixedly provided at one end of each movable block 403. An L-shaped elastic element 405 is fixedly provided on one side of one of the protective covers 404, and a connecting block 406 is fixedly provided on one side of the other protective cover 404. A mating groove 407 is provided at the top of the connecting block 406. The inner wall of the mating groove 407 is interlocked with the outer wall of the L-shaped elastic element 405. A diagonal strip 408 is fixedly provided on one side of the L-shaped elastic element 405. A movable channel 409 communicating with the mating groove 407 is provided on one side of the connecting block 406. A limit rod 410 is rotatably connected to the inner wall of the movable channel 409. A support spring 411 is fixedly provided at the bottom of the inner wall of the movable channel 409. The top of the support spring 411 is fixedly connected to one side of the bottom end of the limit rod 410.

[0028] Working principle: When using and installing this pressure reducing valve, the operator opens the protective mechanism 4, aligns the arc-shaped connector 7 with the interface of the oxygen cylinder, and then tightens the locking nut 8 to complete the installation. After installation, the operator can move the movable ring 401, then rotate the protective cover 404. The movable block 403 rotates within the U-shaped seat 402, pressing the limit rod 410. The limit rod 410 rotates, and the L-shaped elastic element 405 inserts into the docking groove 407. After releasing the limit rod 410, the limit rod 410 acts on the inclined bar 408 to limit its position. The two protective covers 404 can protect the pressure reducing valve connector and prevent dust accumulation.

[0029] It should be noted that, in this document, terms such as "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pressure reducing valve structure for a medical oxygen cylinder that is easy to replace, comprising a pressure reducing valve body (1), wherein a high pressure gauge (2) is installed on one side of the top of the pressure reducing valve body (1), and a low pressure gauge (3) is installed in the middle of the top of the pressure reducing valve body (1), and protective mechanisms (4) are provided on both sides of the outer wall of the pressure reducing valve body (1), characterized in that: Both ends of the pressure reducing valve body (1) are fixedly connected to arc-shaped connectors (7). Each arc-shaped connector (7) has a locking nut (8) inserted through its outer wall. Each arc-shaped connector (7) has a retaining ring fixed on one side of its outer wall. The inner wall of the locking nut (8) has a sealing ring fixed. The protective mechanism (4) includes a movable ring (401). The top and bottom ends of the movable ring (401) are fixedly provided with U-shaped seats (402). Each U-shaped seat (402) is rotatably connected to a movable block (403). One end of each movable block (403) is fixedly provided with a protective cover (404).

2. The replaceable pressure reducing valve structure for medical oxygen cylinder according to claim 1, characterized in that: A safety valve (5) is installed in the middle of the bottom end of the pressure reducing valve body (1), and both ends of one side of the pressure reducing valve body (1) are fixed with directional markings (9).

3. The replaceable pressure reducing valve structure for medical oxygen cylinder according to claim 1, characterized in that: The valve stem of the pressure reducing valve body (1) has a connecting screw hole, and an adjusting rod (6) is threaded into the connecting screw hole.

4. The easily replaceable pressure reducing valve structure for a medical oxygen cylinder according to claim 1, characterized in that: One of the protective covers (404) is fixedly provided with an L-shaped elastic element (405) on one side, and the other protective cover (404) is fixedly provided with a connecting block (406) on one side.

5. The easily replaceable pressure reducing valve structure for a medical oxygen cylinder according to claim 4, characterized in that: The top of the connecting block (406) is provided with a mating groove (407), the inner wall of the mating groove (407) is inserted and connected to the outer wall of the L-shaped elastic member (405), and a diagonal strip (408) is fixedly provided on one side of the L-shaped elastic member (405).

6. The easily replaceable pressure reducing valve structure for a medical oxygen cylinder according to claim 5, characterized in that: The connecting block (406) has an active channel (409) on one side that communicates with the docking groove (407), and the inner wall of the active channel (409) is rotatably connected to a limit rod (410).

7. The easily replaceable pressure reducing valve structure for a medical oxygen cylinder according to claim 6, characterized in that: A support spring (411) is fixedly provided at the bottom of the inner wall of the active channel (409), and the top end of the support spring (411) is fixedly connected to one side of the bottom end of the limiting rod (410).

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