Dual-purpose pressure reducing valve

Abstract

The utility model belongs to the field of pressure reducing valves, and particularly relates to a dual-purpose pressure reducing valve which comprises a valve body, an air inlet connector is fixedly connected to the right end of the valve body, a pressure gauge is arranged on the front section of the valve body, a national standard connector is arranged on the front section of the valve body, and an air outlet end is arranged on the rear section of the valve body. A sealing ring is fixedly connected to the middle of the inner side of the valve body, a plug is slidably connected to the inner side of the sealing ring, and a neck bush is fixedly connected to the left portion of the inner side of the valve body. The air inlet connector is arranged at the end of the valve body and used for being connected with the oxygen steel cylinder, and then the pressure gauge, the national standard connector and the air outlet end are arranged on the valve body, so that the whole valve not only can be connected with the oxygen steel cylinder for autonomous oxygen inhalation, but also can be used on a breathing machine, and is dual-purpose. The use efficiency and convenience of the pressure reducing valve are improved, the operation steps and time of medical staff are reduced, the equipment cost is reduced, and the purchase and maintenance cost of hospitals is reduced.

Description

Technical Field

[0001] This utility model relates to the field of pressure reducing valves, specifically a dual-purpose pressure reducing valve. Background Technology

[0002] An oxygen cylinder connection valve is a valve used to connect an oxygen cylinder to a user's equipment. For example, the utility model patent with authorization announcement number CN217153009U proposes an oxygen cylinder valve body, including a valve body, an integrally formed outlet pipe on the outer wall of the right side of the valve body, an inlet pipe detachably installed on the lower side of the valve body, a first limiting ring fixedly sleeved on the outer wall of the valve body, a second limiting ring fixedly sleeved on the outer wall of the inlet pipe, multiple annular and equally spaced first screws fixedly connected to the bottom wall of the first limiting ring, an arc-shaped groove adapted to the first screws on the second limiting ring, and a nut threadedly connected to the outer wall of the first screws to abut against the outer wall of the second limiting ring.

[0003] In medical treatment, oxygen supply and the use of ventilators are common and crucial aspects. However, existing oxygen depressors and ventilator depressors are usually designed and used separately, which not only increases the complexity and cost of the equipment but also causes inconvenience for medical staff. Therefore, improvements are needed. Utility Model Content

[0004] The purpose of this invention is to provide a dual-purpose pressure reducing valve that solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a dual-purpose pressure reducing valve, comprising a valve body, an air inlet fixedly connected to the right end of the valve body, a pressure gauge and a national standard interface provided at the front section of the valve body, an air outlet provided at the rear section of the valve body, a sealing ring fixedly connected to the middle of the inner side of the valve body, a plug slidably connected to the inner side of the sealing ring, an inner bushing fixedly connected to the left side of the inner side of the valve body, an installation ring mounted on the inner side of the inner bushing via a sealing bearing, an adjusting handwheel fixedly connected to the left side of the installation ring, a threaded shaft fixedly connected to the right side of the adjusting handwheel, an internal threaded sleeve threadedly connected to the outer side of the threaded shaft, a connecting disc fixedly connected to the end of the internal threaded sleeve away from the threaded shaft, and a spring fixedly connected between the connecting disc and the plug.

[0006] Preferably, a locking bolt is slidably fitted onto the outer side of the air inlet port. The locking bolt facilitates the installation of the air inlet port onto the oxygen cylinder.

[0007] Preferably, the mounting ring is circular and is an integral part of the adjusting handwheel. The mounting ring facilitates the installation of the adjusting handwheel.

[0008] Preferably, the adjusting handwheel contacts the valve body, and the adjusting handwheel is a circular block shape. The adjustment handwheel facilitates the rotation of the threaded shaft.

[0009] Preferably, the plug is frustum-shaped and made of rubber. The plug, in conjunction with the sealing ring, serves to prevent backflow.

[0010] Preferably, a protective sleeve, made of rubber, is fixedly connected between the connecting disc and the plug, located outside the spring. This protective sleeve provides protection for the spring.

[0011] Preferably, a guide pin is fixedly connected to the outer side of the internal threaded sleeve, and a guide groove is fixedly connected to the inner wall of the valve body. The guide pin and the guide groove are slidably connected. The guide pin and the guide groove provide guidance for the movement of the internal threaded sleeve.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model provides an air inlet at the end of the valve body for connecting to an oxygen cylinder. A pressure gauge, a national standard interface, and an air outlet are also provided on the valve body. This allows the entire unit to be used for independent oxygen inhalation after connecting to an oxygen cylinder, and it can also be used on a ventilator. This dual-purpose valve not only improves the efficiency and convenience of the pressure reducing valve and reduces the operation steps and time for medical staff, but also reduces equipment costs and hospital procurement and maintenance expenses.

[0014] 2. This utility model constructs a pressure regulating mechanism by setting a sealing ring, plug, inner liner, mounting ring, adjusting handwheel, threaded shaft, inner threaded sleeve, connecting plate and spring in the valve body. The relative threaded movement between the inner threaded sleeve and the threaded shaft can control the stroke and compression ratio of the spring. This allows different patients to adjust the pressure according to their own breathing strength, further increasing the applicability. Attached Figure Description

[0015] Figure 1 This is a three-dimensional view of the overall structure of this utility model;

[0016] Figure 2 For the present utility model Figure 1 A partial structural front sectional view;

[0017] Figure 3 For the present utility model Figure 2 A partial three-dimensional structural diagram;

[0018] Figure 4 For the present utility model Figure 2 Left view of the sealing ring.

[0019] In the diagram: 1. Valve body; 2. Inlet port; 3. Locking bolt; 4. Pressure gauge; 5. National standard interface; 6. Outlet end; 7. Sealing ring; 8. Plug; 9. Inner bushing; 10. Mounting ring; 11. Adjusting handwheel; 12. Threaded shaft; 13. Internal threaded sleeve; 14. Connecting disc; 15. Spring; 16. Guide pin; 17. Guide groove; 18. Protective sleeve. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-2 A dual-purpose pressure reducing valve includes a valve body 1. An air inlet 2 is fixedly connected to the right end of the valve body 1. A locking bolt 3 is slidably fitted onto the outer side of the air inlet 2. The locking bolt 3 facilitates the installation of the air inlet 2 on an oxygen cylinder. A pressure gauge 4 and a national standard interface 5 are located at the front of the valve body 1. A dedicated DISS interface is located at the left side of the national standard interface 5 at the front of the valve body 1. An air outlet 6 is located at the rear of the valve body 1.

[0022] Please see Figure 2-4 A sealing ring 7 is fixedly connected to the center of the inner side of the valve body 1. A plug 8 is slidably connected to the inner side of the sealing ring 7. The plug 8 is frustoconical and made of rubber. The plug 8, in conjunction with the sealing ring 7, has an anti-backflow function. An inner bushing 9 is fixedly connected to the left side of the inner side of the valve body 1. An installation ring 10 is mounted on the inner side of the inner bushing 9 via a sealing bearing. The installation ring 10 is annular and is an integral structure with the adjusting handwheel 11. The installation ring 10 facilitates the installation of the adjusting handwheel 11. The adjusting handwheel 11 is fixedly connected to the left side of the installation ring 10. The adjusting handwheel 11 contacts the valve body 1 and is a circular block shape. By adjusting the setting of the handwheel 11, it is easy to rotate the threaded shaft 12. The right side of the handwheel 11 is fixedly connected to the threaded shaft 12. The outer side of the threaded shaft 12 is connected to the inner threaded sleeve 13 by thread. The end of the inner threaded sleeve 13 away from the threaded shaft 12 is fixedly connected to the connecting plate 14. The connecting plate 14 and the plug 8 are both fixedly connected to the spring 15.

[0023] Please see Figure 2A protective sleeve 18, made of rubber, is fixedly connected between the connecting disc 14 and the plug 8, located outside the spring 15. The protective sleeve 18 provides protection for the spring 15. A guide pin 16 is fixedly connected to the outer side of the internal threaded sleeve 13, and a guide groove 17 is fixedly connected to the inner wall of the valve body 1. The guide pin 16 and the guide groove 17 are slidably connected. The guide pin 16 and the guide groove 17 guide the movement of the internal threaded sleeve 13.

[0024] The specific implementation process of this utility model is as follows: In use, first connect the air inlet 2 to the oxygen cylinder and lock it with the locking bolt 3. Then connect the ventilator's connecting tube to the national standard interface 5, and connect the air outlet 6 to the breathing mask through the hose. In this way, the whole unit can not only be used for independent oxygen inhalation after connecting to the oxygen cylinder, but also can be used on the ventilator. It is a dual-purpose valve with good applicability. In addition, by adjusting the handwheel 11 to rotate the threaded shaft 12, the inner threaded sleeve 13 moves axially on the threaded shaft 12 under the guidance of the guide pin 16 and the guide groove 17. During the movement of the inner threaded sleeve 13, the spring 15 will be compressed, thereby controlling the stroke and compression ratio of the spring 15. In this way, different patients can adjust it according to their own breathing strength, further increasing the applicability.

[0025] 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 dual-purpose pressure reducing valve, comprising a valve body (1), characterized in that: An air inlet (2) is fixedly connected to the right end of the valve body (1). A pressure gauge (4) is installed at the front of the valve body (1). A national standard interface (5) is installed at the front of the valve body (1). An air outlet (6) is installed at the rear of the valve body (1). A sealing ring (7) is fixedly connected to the middle of the inner side of the valve body (1). A plug (8) is slidably connected to the inner side of the sealing ring (7). An inner bushing (9) is fixedly connected to the left side of the inner side of the valve body (1). The inner side of the inner bushing (9) An installation ring (10) is installed through a sealed bearing. An adjusting handwheel (11) is fixedly connected to the left side of the installation ring (10). A threaded shaft (12) is fixedly connected to the right side of the adjusting handwheel (11). An internal threaded sleeve (13) is threadedly connected to the outer side of the shaft of the threaded shaft (12). A connecting disc (14) is fixedly connected to the end of the internal threaded sleeve (13) away from the threaded shaft (12). A spring (15) is fixedly connected between the connecting disc (14) and the plug (8).

2. The dual-purpose pressure reducing valve according to claim 1, characterized in that: The air intake port (2) is slidably fitted with a locking bolt (3) on the outside of the pipe body.

3. The dual-purpose pressure reducing valve according to claim 1, characterized in that: The mounting ring (10) is circular and located on the adjusting handwheel (11), which is an integral structure.

4. A dual-purpose pressure reducing valve according to claim 1, characterized in that: The adjusting handwheel (11) is in contact with the valve body (1), and the adjusting handwheel (11) is a circular block.

5. A dual-purpose pressure reducing valve according to claim 1, characterized in that: The plug (8) is frustum-shaped and made of rubber.

6. A dual-purpose pressure reducing valve according to claim 1, characterized in that: The connecting disc (14) and the plug (8) are fixedly connected together by a protective sleeve (18) located outside the spring (15), and the protective sleeve (18) is made of rubber.

7. A dual-purpose pressure reducing valve according to claim 1, characterized in that: The outer side of the internal threaded sleeve (13) is fixedly connected to a guide pin (16), and the inner wall of the valve body (1) is fixedly connected to a guide groove (17). The guide pin (16) and the guide groove (17) are slidably connected.

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