Intelligent valve alarm box for monitoring medical gas pressure

Abstract

An intelligent valve alarm box for monitoring medical gas pressure disclosed by the present invention comprises a box body, a gas pressure tank is fixedly arranged in the box body, a gas inlet pipe is arranged on one side of the gas pressure tank, a gas outlet pipe is arranged on the other side of the gas pressure tank, an opening and closing valve is arranged on the gas outlet pipe, and a monitoring mechanism is arranged at a joint between the gas outlet pipe and the gas pressure tank. The monitoring mechanism comprises a monitoring valve body, a first-stage air pressure monitoring assembly and a second-stage air pressure monitoring assembly, the monitoring valve body is further provided with an audible and visual alarm, and an air inlet is formed in the air outlet pipe. Through the dual protection mechanism of the first-stage air pressure monitoring assembly and the second-stage air pressure monitoring assembly, the safety and reliability of air supply are improved; wherein the first-stage air pressure monitoring assembly is responsible for monitoring and adjusting the air pressure in the air outlet pipe in real time, and when the air pressure exceeds a controllable range, the second-stage air pressure monitoring assembly triggers the audible and visual alarm and closes the opening and closing valve, so that further risks are prevented.

Description

Technical Field

[0001] The invention relates to the technical field of air pressure monitoring alarm devices, and in particular to an intelligent valve alarm box for monitoring medical gas pressure. Background Art

[0002] The operating room medical gas terminal box is usually installed in the hospital operating room to provide medical gas for use during surgery in the operating room. The medical gas terminal box is equipped with several gas terminals for quick plug-in connection between the medical gas supply source and the gas source equipment or device. The traditional operating room medical gas terminal box does not have a gas source monitoring and alarm function, which is inconvenient for the staff to pay attention to the gas pressure status of each medical gas source in real time during surgery, which is easy to cause surgical safety accidents.

[0003] In the prior art, for example, a Chinese utility model patent (publication number CN218765756U) discloses a medical gas terminal box for an operating room with a gas source monitoring and alarm function, which includes a gas terminal box body, the gas terminal box body including a bottom shell, a gas terminal box body cover is provided at the front end of the bottom shell, a baffle is provided inside the bottom shell and the baffle divides the inner cavity of the bottom shell into a circuit system cavity and a gas terminal cavity, a gas terminal group is provided in the gas terminal cavity, and the front end of the gas terminal group is exposed on the surface of the gas terminal box body cover, a switching power supply panel, a digital display module and a liquid crystal display are provided in the circuit system cavity, the switching power supply panel, the digital display module and the liquid crystal display are electrically connected, the front end of the liquid crystal display is exposed on the surface of the gas terminal box body cover and the liquid crystal display can realize an audible and visual alarm function for abnormal gas source pressure of the gas terminal group.

[0004] The above-mentioned prior art adds a gas source monitoring and alarm function, which is convenient for the staff to pay attention to the gas pressure status of each medical gas source in real time during surgery, and can detect and identify gas source pressure abnormalities at the first time. However, if the gas pressure monitoring fails, the gas pressure situation cannot be monitored and alarmed, which creates risks. Therefore, there is a need for an intelligent valve alarm box that provides higher reliability and gas pressure monitoring capabilities through dual monitoring. Summary of the invention

[0005] In view of the problems existing in the existing technology, an intelligent valve alarm box for monitoring the pressure of medical gas is provided. The present invention improves the safety and reliability of gas supply through the dual protection mechanism of the primary air pressure monitoring component and the secondary air pressure monitoring component. The primary air pressure monitoring component is responsible for real-time monitoring and adjusting the air pressure in the air outlet pipe. When the air pressure exceeds the controllable range, the secondary air pressure monitoring component triggers the sound and light alarm and closes the opening and closing valve to prevent further risks.

[0006] To solve the problems of the prior art, the present invention provides an intelligent valve alarm box for monitoring the pressure of medical gas, comprising a box body, wherein an air pressure tank is fixedly arranged in the box body, an air inlet pipe is arranged on one side of the air pressure tank, and an air outlet pipe is arranged on the other side, an opening and closing valve is arranged on the air outlet pipe, and a monitoring mechanism for monitoring the output gas pressure is arranged at the interface between the air outlet pipe and the air pressure tank, the monitoring mechanism comprises a monitoring valve body, a primary air pressure monitoring component for normally detecting the pressure value of the medical gas, and a secondary air pressure monitoring component for monitoring excessive pressure exceeding the controllable range of the primary air pressure monitoring component, the monitoring valve body is fixedly arranged between the air pressure tank and the air outlet pipe, the primary air pressure monitoring component and the secondary air pressure monitoring component are both arranged in the monitoring valve body, the monitoring valve body is also provided with an audible and visual alarm electrically connected to the secondary air pressure monitoring component, a pressure space is formed between the monitoring valve body and the air outlet pipe, and an air inlet hole connected to the air pressure space and allowing the gas pressure to directly act on the primary air pressure monitoring component is opened on the air outlet pipe.

[0007] Preferably, an air outlet hole connected to the air pressure space is also provided on the air outlet pipe, and a partition is fixedly provided between the monitoring valve body and the air outlet pipe, and the partition divides the air pressure space into a pressure charging chamber connected to the air inlet hole and a pressure relief chamber connected to the air outlet hole, and an opening and closing component for automatically opening and closing the air outlet hole is provided in the pressure relief chamber.

[0008] Preferably, both the first-level air pressure monitoring component and the second-level air pressure monitoring component are airbag-type pressure monitoring structures, the first-level air pressure monitoring component includes a first airbag fixedly arranged on the air outlet pipe and covering the air inlet hole, and the second-level air pressure monitoring component includes a second airbag fixedly arranged between the monitoring valve body and the air outlet pipe. When the gas pressure in the inflation chamber rises sharply, causing the inflation speed of the first airbag to continue to expand exceeding the pressure relief speed, the second airbag is in a state of being squeezed by the first airbag and gradually expanding, and the sound and light alarm is in a simultaneous alarm state.

[0009] Preferably, the first-level air pressure monitoring component also includes a first pressure sensing component arranged between the first airbag and the monitoring valve body, and the second-level air pressure monitoring component also includes a second pressure sensing component arranged between the second airbag and the monitoring valve body. When the first pressure sensing component detects that the pressure level of the first airbag is within the detection range, the first airbag and the second airbag are in a non-contact state, so that the second pressure sensing component is in an inactive state.

[0010] Preferably, the first pressure sensing component includes a pressure rod slidably arranged on the monitoring valve body along a direction perpendicular to the axis of the air outlet pipe, and a torque sensor fixedly arranged on the monitoring valve body for sensing the pressure intensity of the pressure rod. The air outlet pipe is provided with a sliding opening for the pressure rod to slide. The torque sensor has a rotating shaft connected to it and a pressure plate fixedly connected to the rotating shaft. The surface of the pressure plate contacts the end of the pressure rod extending outward, and the end of the pressure rod extending inward contacts the surface of the first airbag.

[0011] Preferably, both ends of the pressure rod are round head structures.

[0012] Preferably, the pressure rod is provided with a first limiting portion and a second limiting portion, which are located inside and outside the monitoring valve body, respectively. When the second limiting portion contacts the monitoring valve body, the gas pressure in the outlet pipe is in a low-pressure state, and when the first limiting portion contacts the monitoring valve body, the gas pressure in the outlet pipe is in a high-pressure state.

[0013] Preferably, the second pressure sensing component includes a pressure sensor fixedly mounted on the monitoring valve body and a compression spring sleeved on the air outlet pipe and located between the pressure sensor and the second airbag. When the second airbag is not inflated, the compression spring is in a state of not being acted upon by external force.

[0014] Preferably, a ring sleeve is slidably provided in the monitoring valve body and sleeved on the air outlet pipe, and the ring sleeve is located between the second air bag and the compression spring.

[0015] Preferably, the opening and closing assembly includes a sleeve slidably mounted on the air outlet pipe and a linear driver for driving the sleeve to move, and a return spring mounted on the air outlet pipe is fixedly connected between the sleeve and the monitoring valve body.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention realizes multi-point gas supply and independent control of medical gas by arranging multiple gas outlet pipes connected to the air pressure tank in the box body and equipping each gas outlet pipe with an independent monitoring mechanism, which not only ensures that different areas or equipment can obtain the required gas independently and stably, but also improves the safety and reliability of gas supply through the dual protection mechanism of the primary air pressure monitoring component and the secondary air pressure monitoring component. That is, the primary air pressure monitoring component is responsible for pressure regulation within a controllable range, and the secondary air pressure monitoring component triggers the sound and light alarm and takes emergency measures when the pressure abnormally exceeds the controllable range of the primary air pressure monitoring component, and closes the opening and closing valve to prevent further risks. It not only optimizes the allocation and utilization efficiency of gas resources, but also greatly enhances the air pressure monitoring capability.

[0018] 2. The present invention can learn the pressure condition in the outlet pipe through real-time monitoring of the gas pressure in the outlet pipe by the first-level air pressure monitoring component, thereby automatically adjusting the air pressure in the outlet pipe. At this time, there is no need to activate the sound and light alarm, which means that the air pressure is within a controllable range, reducing unnecessary alarms. That is, when the air pressure is lower than the preset value, the air inlet pipe is automatically pressurized, and when the air pressure is higher than the preset value, the opening and closing component opens the air outlet to release the pressure, ensuring that the air pressure is always within the normal range, so that the gas pressure can be quickly and accurately adjusted to the required level, improving the response speed and control accuracy of air pressure regulation, and through timely pressurization and pressure relief, it can effectively prevent safety risks caused by excessive air pressure, thereby ensuring the safety of equipment and personnel.

[0019] 3. The present invention can detect abnormal gas pressure at different stages through the dual monitoring structure of the first airbag and the second airbag. When the gas pressure rises sharply, the rapid expansion of the first airbag can immediately trigger the response of the first-level air pressure monitoring component. If the first-level air pressure monitoring component cannot handle it in time, the expansion of the second airbag will further trigger the second-level air pressure monitoring component, thereby activating the sound and light alarm, ensuring that medical staff can quickly detect abnormal conditions and take corresponding measures. When the gas pressure exceeds the preset value and is continuously pressurized, the second-level air pressure monitoring component will not only trigger the sound and light alarm, but also transmit the signal to the controller that controls the opening and closing of the valve, close the valve, and stop the gas from continuing to flow out, thereby preventing further risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The present invention is a three-dimensional structural diagram of an intelligent valve alarm box for monitoring medical gas pressure.

[0021] Figure 2 It is a left view of an intelligent valve alarm box for monitoring medical gas pressure.

[0022] Figure 3 A plan cross-sectional view of an intelligent valve alarm box for monitoring medical gas pressure.

[0023] Figure 4 yes Figure 2 Local plane section view at AA.

[0024] Figure 5 yes Figure 2 A cross-sectional view of the local three-dimensional structure at AA.

[0025] Figure 6 The present invention is a three-dimensional structural diagram of an outlet pipe and a monitoring mechanism of an intelligent valve alarm box for monitoring medical gas pressure.

[0026] Figure 7 The present invention is a plan cross-sectional view of an outlet pipe and a monitoring mechanism of an intelligent valve alarm box for monitoring medical gas pressure.

[0027] Figure 8 The invention discloses a three-dimensional structural cross-sectional view of an outlet pipe and a monitoring mechanism of an intelligent valve alarm box for monitoring medical gas pressure.

[0028] Fig. 9 yes Figure 7 A cross-sectional view of the three-dimensional structure at BB.

[0029] Fig.10 yes Figure 8 Enlarged schematic diagram of point C.

[0030] The numbers in the figure are: 1, box body; 2, air pressure tank; 21, air inlet pipe; 22, air outlet pipe; 221, opening and closing valve; 222, air inlet hole; 223, air outlet hole; 3, monitoring mechanism; 4, monitoring valve body; 41, partition; 411, pressure charging chamber; 412, pressure relief chamber; 4121, pressure relief pipeline; 42, opening and closing assembly; 421, sleeve; 422, linear drive; 423, reset spring; 5, first-level air pressure monitoring Measuring component; 51, first airbag; 52, first pressure sensing element; 521, pressure rod; 5211, first limiting part; 5212, second limiting part; 522, torque sensor; 5221, rotating shaft; 5222, pressure plate; 6, secondary air pressure monitoring component; 61, second airbag; 62, second pressure sensing element; 621, pressure sensor; 622, compression spring; 6221, ring sleeve; 7, sound and light alarm. DETAILED DESCRIPTION

[0031] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0032] See also Figure 1-Figure 5As shown, an intelligent valve alarm box for monitoring medical gas pressure includes a box body 1, a gas pressure tank 2 is fixedly arranged in the box body 1, an air inlet pipe 21 is arranged on one side of the gas pressure tank 2, and an air outlet pipe 22 is arranged on the other side, an opening and closing valve 221 is arranged on the air outlet pipe 22, and a monitoring mechanism 3 for monitoring the output gas pressure is arranged at the interface between the air outlet pipe 22 and the gas pressure tank 2, and the monitoring mechanism 3 includes a monitoring valve body 4, a first-level air pressure monitoring component 5 for normally detecting the pressure value of the medical gas, and a pressure monitoring component 5 for monitoring the pressure exceeding the first level. The air pressure monitoring component 5 has a controllable range of a secondary air pressure monitoring component 6, and the monitoring valve body 4 is fixedly arranged between the air pressure tank 2 and the air outlet pipe 22. The primary air pressure monitoring component 5 and the secondary air pressure monitoring component 6 are both arranged in the monitoring valve body 4. The monitoring valve body 4 is also provided with an audible and visual alarm 7 electrically connected to the secondary air pressure monitoring component 6. A pressure space is formed between the monitoring valve body 4 and the air outlet pipe 22, and the air outlet pipe 22 is provided with an air inlet 222 which is connected to the air pressure space and allows the gas pressure to directly act on the primary air pressure monitoring component 5.

[0033] The housing 1 is provided with a plurality of gas outlet pipes 22 connected to the air pressure tank 2, and each gas outlet pipe 22 is provided with a monitoring mechanism 3. When the medical gas enters the air pressure tank 2 through the air inlet pipe 21, a certain amount of gas is stored in the air pressure tank 2 to ensure the stability and continuity of the gas supply. The gas in the air pressure tank 2 is initially stabilized to ensure that the gas pressure entering the gas outlet pipe 22 is relatively stable. The gas is output from the air pressure tank 2 through the gas outlet pipe 22, and the primary air pressure monitoring component 5 directly detects the gas pressure in the gas outlet pipe 22 through the air inlet hole 222. If the gas pressure is detected to be lower than the preset value, the gas inlet pipe 21 will automatically increase the charging amount to restore the gas pressure to the normal range. If the gas pressure is detected to be higher than the preset value, the charging amount is automatically reduced through the gas inlet pipe 21 to return the gas pressure to the normal range. Within the normal controllable range, the primary air pressure monitoring component 5 will not trigger the sound and light alarm 7. If the primary air pressure monitoring component 5 cannot be processed in time, resulting in the gas pressure exceeding the preset value and being in a continuous pressurization state, the secondary air pressure monitoring component 6 will detect this situation. Once a continuous overpressure situation is detected, the secondary air pressure monitoring component 6 will immediately trigger the sound and light alarm 7 to notify the medical staff to take emergency measures. At the same time, the secondary air pressure monitoring component 6 will also transmit a signal to the controller that controls the opening and closing valve 221, so that the opening and closing valve 221 is closed, preventing the gas from continuing to flow out and preventing further risks. If the primary air pressure monitoring component 5 is damaged under high pressure and causes gas leakage, the secondary air pressure monitoring component 6 replaces the primary air pressure monitoring component 5 to measure the pressure, which has a preventive effect and monitors the gas pressure in the outlet pipe 22 in real time. A plurality of outlet pipes 22 connected to the pressure tank 2 are provided in the box body 1, so that different outlet pipes 22 can be connected to different terminal devices or areas. Ensure that different areas or equipment can independently obtain the required medical gas. The monitoring mechanism 3 on each outlet pipe 22 can independently detect and control the gas pressure in the outlet pipe 22, and more accurately control the gas pressure of each terminal device or area. Each monitoring mechanism 3 can independently trigger an alarm and take protective measures. If an outlet pipe 22 has overpressure or other abnormal conditions, a quick response can be made without affecting the normal operation of other outlet pipes 22.

[0034] See also Figure 3-Figure 8 As shown, the outlet pipe 22 is also provided with an outlet hole 223 connected to the air pressure space, and a partition 41 is fixedly provided between the monitoring valve body 4 and the outlet pipe 22. The partition 41 divides the air pressure space into a charging chamber 411 connected to the air inlet hole 222 and a pressure relief chamber 412 connected to the outlet hole 223. The pressure relief chamber 412 is provided with an opening and closing component 42 for automatically opening and closing the outlet hole 223.

[0035] A pressure relief pipe 4121 connected to the pressure relief chamber 412 is fixedly provided on the monitoring valve body 4, and the pressure relief pipe 4121 is connected to an external pressure relief pump. When the first-level air pressure monitoring component 5 detects that the air pressure is lower than the preset value, the air inlet pipe 21 is in an automatic pressurization state, so that the air pressure in the air outlet pipe 22 returns to a normal range. When the first-level air pressure monitoring component 5 detects that the air pressure is higher than the preset value, the opening and closing component 42 is in a pressure relief state of opening the air outlet 223 to discharge excess gas, so that the air pressure in the air outlet pipe 22 returns to a normal range.

[0036] See also Figure 3-Figure 10 As shown, both the first-level air pressure monitoring component 5 and the second-level air pressure monitoring component 6 are airbag-type pressure monitoring structures, wherein the first-level air pressure monitoring component 5 includes a first airbag 51 fixedly arranged on the air outlet pipe 22 and shielding the air inlet hole 222, and the second-level air pressure monitoring component 6 includes a second airbag 61 fixedly arranged between the monitoring valve body 4 and the air outlet pipe 22. When the gas pressure in the charging chamber 411 rises sharply, causing the charging speed of the first airbag 51 to continuously expand exceeding the pressure relief speed, the second airbag 61 is in a state of being squeezed by the first airbag 51 and gradually expanding, and the sound and light alarm 7 is in a simultaneous alarm state.

[0037] When the gas pressure in the pressure chamber 411 rises sharply, the first airbag 51 begins to expand. Due to the sharp increase in gas pressure, the expansion speed of the first airbag 51 exceeds the pressure relief speed of the air outlet 223. As the gas pressure continues to increase, the first airbag 51 continues to expand and begins to squeeze the second airbag 61. The second airbag 61 is squeezed by the first airbag 51 and also begins to expand gradually. The expansion of the second airbag 61 triggers the response mechanism of the secondary air pressure monitoring component 6, and the sound and light alarm 7 is activated, which emits sound and light alarms at the same time, notifying medical staff to take emergency measures.

[0038] See also Figure 3-Figure 10 As shown, the first-level air pressure monitoring component 5 also includes a first pressure sensing component 52 arranged between the first airbag 51 and the monitoring valve body 4, and the second-level air pressure monitoring component 6 also includes a second pressure sensing component 62 arranged between the second airbag 61 and the monitoring valve body 4. When the first pressure sensing component 52 detects that the pressure level of the first airbag 51 is within the detection range, the first airbag 51 and the second airbag 61 are in a non-contact state, so that the second pressure sensing component 62 is in an inactive state.

[0039] When the first pressure sensing element 52 detects that the pressure of the first airbag 51 is within the controllable range, the first airbag 51 and the second airbag 61 remain in a non-contact state, so that the second pressure sensing element 62 will not be activated. At this time, the real-time monitoring and adjustment of the air pressure can be achieved only through the first-level air pressure monitoring component 5, avoiding the situation where the second-level alarm is triggered due to slight fluctuations in air pressure, reducing the possibility of false alarms, and improving the accuracy and reliability of the alarm. By avoiding unnecessary activation of the second-level alarm mechanism, the accuracy of air pressure monitoring within the normal range is improved.

[0040] See also Figure 4-Figure 10 As shown, the first pressure sensing component 52 includes a pressure rod 521 slidably arranged on the monitoring valve body 4 along a direction perpendicular to the axis of the air outlet pipe 22, and a torque sensor 522 fixedly arranged on the monitoring valve body 4 for sensing the pressure degree of the pressure rod 521. The air outlet pipe 22 is provided with a sliding opening for the pressure rod 521 to slide. The torque sensor 522 has a rotating shaft 5221 connected thereto and a pressure plate 5222 fixedly connected to the rotating shaft 5221. The surface of the pressure plate 5222 contacts the end of the pressure rod 521 extending outward, and the end of the pressure rod 521 extending inward contacts the surface of the first airbag 51.

[0041] There are multiple pressure rods 521 evenly distributed around the circumference of the air outlet pipe 22, and each pressure rod 521 is provided with an air outlet hole 223 on the air outlet pipe 22. The first air bag 51 is an annular structure, and all the air outlet holes 223 are shielded by a first air bag 51. When the first air bag 51 is compressed, the pressure rod 521 will be pushed outward by the expanded first air bag 51. At this time, the pressure rod 521 pushes the pressure plate 5222 to rotate around the rotating shaft 5221, thereby transmitting pressure to the torque sensor 522. The torque sensor 522 measures the pressure of the first air bag 51 by detecting the force of the pressure plate 5222, thereby monitoring the gas pressure in the air outlet pipe 22, and balancing the gas pressure by pressurization and pressure relief, so that the gas pressure reaches a preset value. By evenly distributing multiple pressure rods 521 around the air outlet pipe 22, multi-point monitoring of the pressure of the first air bag 51 can be achieved, thereby improving the accuracy and reliability of monitoring.

[0042] See also Fig.10 As shown, both ends of the pressing rod 521 are round head structures.

[0043] The rounded head structure at the end of the pressing rod 521 can reduce the friction and wear between the pressing rod 521 and the pressure plate 5222 and the surface of the first airbag 51, which helps to extend the service life of the pressure plate 5222 and the first airbag 51 and reduce the maintenance frequency. It ensures the real-time response of the torque sensor 522 when the first airbag 51 is expanded, and improves the reliability and accuracy of air pressure monitoring.

[0044] See also Fig.10 As shown, the pressure rod 521 is provided with a first limiting portion 5211 and a second limiting portion 5212 located inside the monitoring valve body 4 and outside the monitoring valve body 4, respectively. When the second limiting portion 5212 contacts the monitoring valve body 4, the gas pressure in the outlet pipe 22 is in a low-pressure state, and when the first limiting portion 5211 contacts the monitoring valve body 4, the gas pressure in the outlet pipe 22 is in a high-pressure state.

[0045] When the gas pressure in the outlet pipe 22 is low, the first airbag 51 is in a state where no external force is applied, and the second limit portion 5212 of the pressure rod 521 contacts the monitoring valve body 4, thereby indicating a low-pressure state. When the gas pressure is high, the expansion of the first airbag 51 will push the pressure rod 521 to move outward, causing the first limit portion 5211 to contact the monitoring valve body 4, thereby indicating a high-pressure state. The gas pressure state in the outlet pipe 22 can be accurately determined by the contact between the first limit portion 5211, the second limit portion 5212 and the monitoring valve body 4, thereby realizing reliable monitoring and control of the gas pressure. The gas pressure state can be effectively controlled by pressurization and pressure relief.

[0046] See also Figure 4-Figure 8 As shown, the second pressure sensing component 62 includes a pressure sensor 621 fixedly mounted on the monitoring valve body 4 and a compression spring 622 mounted on the outlet pipe 22 and located between the pressure sensor 621 and the second airbag 61. When the second airbag 61 is not inflated, the compression spring 622 is in a state of not being acted upon by external force.

[0047] When the second airbag 61 is not inflated, the compression spring 622 is in a natural state, that is, a state without external force. As the first airbag 51 expands, the gas rises sharply and is in a continuously pressurized state, and the pressure relief speed cannot keep up with the gas pressurization speed. At this time, the first airbag 51 will squeeze the second airbag 61 to expand it, thereby applying pressure to the compression spring 622, causing the compression spring 622 to compress and apply force to the pressure sensor 621. The pressure sensor 621 measures the pressure of the second airbag 61 by detecting the pressure change of the compression spring 622. It is thus sensed that the pressure in the air outlet pipe 22 is abnormal and cannot be adjusted by pressure relief. At this time, the signal is transmitted to the sound and light alarm 7, and the sound and light alarm 7 is activated to remind medical staff to take emergency measures.

[0048] See also Figure 4-Figure 8 and Fig.10 As shown, a ring sleeve 6221 is slidably provided in the monitoring valve body 4 and sleeved on the air outlet pipe 22 , and the ring sleeve 6221 is located between the second air bag 61 and the compression spring 622 .

[0049] When the gas pressure in the air outlet pipe 22 rises sharply, the first airbag 51 begins to expand, thereby squeezing the second airbag 61. The second airbag 61 begins to expand after being squeezed, and as the second airbag 61 expands, an outward pressure is applied to the ring sleeve 6221. The ring sleeve 6221 slides along the air outlet pipe 22 in the monitoring valve body 4. Since the ring sleeve 6221 is located between the second airbag 61 and the compression spring 622, its sliding will push the compression spring 622 and apply pressure to the pressure sensor 621. The ring sleeve 6221 enables the pressure of the second airbag 61 to be transmitted to the compression spring 622, and then transmitted to the pressure sensor 621 by the compression spring 622, thereby ensuring the accuracy of pressure transmission.

[0050] See also Figure 4-Figure 8 As shown, the opening and closing assembly 42 includes a sleeve 421 slidably mounted on the air outlet pipe 22 and a linear driver 422 for driving the sleeve 421 to move. A return spring 423 mounted on the air outlet pipe 22 is fixedly connected between the sleeve 421 and the monitoring valve body 4.

[0051] The linear drive 422 is an electromagnetic structure that cooperates with the sleeve 421. When the end of the sleeve 421 contacts the partition 41, the air outlet 223 is in a state of being covered by the sleeve 421, and the return spring 423 is in a state of not being acted upon by external forces. When the air outlet 223 needs to be opened to relieve pressure, the linear drive 422 is started, and an electromagnetic force is generated to push the sleeve 421 to move away from the partition 41. As the sleeve 421 moves, the air outlet 223 begins to be exposed, and the return spring 423 is compressed. When the sleeve 421 moves to a certain position, the air outlet 223 is completely exposed, and the gas can be discharged through the air outlet 223. Once the linear drive 422 is closed, the electromagnetic force disappears, and the sleeve 421 quickly returns to the initial position under the elastic force of the return spring 423, and the air outlet 223 is covered again. Thereby, the opening and closing control of the air outlet 223 is realized, which is conducive to ensuring that the gas pressure in the air outlet pipe 22 returns to the normal range under high pressure conditions through pressure relief.

[0052] The present invention realizes multi-point gas supply and independent control of medical gas by arranging multiple gas outlet pipes 22 connected to the air pressure tank 2 in the box body 1 and equipping each gas outlet pipe 22 with an independent monitoring mechanism 3. The monitoring mechanism 3 not only ensures that different areas or equipment can stably obtain the required gas through the dual protection mechanism of the first-level air pressure monitoring component 5 and the second-level air pressure monitoring component 6, but also improves the safety and reliability of gas supply. The first-level air pressure monitoring component 5 is responsible for real-time monitoring and adjusting the air pressure in the gas outlet pipe 22. When the air pressure exceeds the controllable range, the second-level air pressure monitoring component 6 triggers the sound and light alarm 7 and closes the opening and closing valve 221 to prevent further risks, thereby enhancing the air pressure monitoring capability, effectively preventing the safety risks caused by excessive air pressure, and ensuring the safety of equipment and personnel.

[0053] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the protection scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. An intelligent valve alarm box for monitoring medical gas pressure, comprising a box body (1), wherein a pressure tank (2) is fixedly arranged in the box body (1), an air inlet pipe (21) is arranged on one side of the pressure tank (2), and an air outlet pipe (22) is arranged on the other side, and an opening and closing valve (221) is arranged on the air outlet pipe (22); It is characterized in that A monitoring mechanism (3) for monitoring the output gas pressure is provided at the interface between the gas outlet pipe (22) and the gas pressure tank (2), the monitoring mechanism (3) comprising a monitoring valve body (4), a primary gas pressure monitoring component (5) for normally detecting the pressure value of the medical gas, and a secondary gas pressure monitoring component (6) for monitoring excessive pressure beyond the controllable range of the primary gas pressure monitoring component (5), the monitoring valve body (4) is fixedly arranged between the gas pressure tank (2) and the gas outlet pipe (22), and the primary gas pressure monitoring component (5) and the secondary gas pressure monitoring component (6) are both arranged in the monitoring valve body (4); The monitoring valve body (4) is also provided with an audible and visual alarm (7) electrically connected to the secondary air pressure monitoring component (6); a pressure space is formed between the monitoring valve body (4) and the air outlet pipe (22); and the air outlet pipe (22) is provided with an air inlet hole (222) which is connected to the air pressure space and allows the gas pressure to directly act on the primary air pressure monitoring component (5).

2. The intelligent valve alarm box for monitoring medical gas pressure according to claim 1, characterized in that: The air outlet pipe (22) is also provided with an air outlet hole (223) connected to the air pressure space. A partition plate (41) is fixedly provided between the monitoring valve body (4) and the air outlet pipe (22). The partition plate (41) divides the air pressure space into a pressure charging chamber (411) connected to the air inlet hole (222) and a pressure relief chamber (412) connected to the air outlet hole (223). An opening and closing component (42) for automatically opening and closing the air outlet hole (223) is provided in the pressure relief chamber (412).

3. The intelligent valve alarm box for monitoring medical gas pressure according to claim 2 is characterized in that: The first-level air pressure monitoring component (5) and the second-level air pressure monitoring component (6) are both airbag-type pressure monitoring structures. The first-level air pressure monitoring component (5) includes a first airbag (51) fixedly arranged on the air outlet pipe (22) and shielding the air inlet hole (222), and the second-level air pressure monitoring component (6) includes a second airbag (61) fixedly arranged between the monitoring valve body (4) and the air outlet pipe (22). When the gas pressure in the charging chamber (411) rises sharply, causing the charging speed of the first airbag (51) to continuously expand to exceed the pressure relief speed, the second airbag (61) is in a state of being squeezed by the first airbag (51) and gradually expanding, and the sound and light alarm (7) is in a simultaneous alarm state.

4. The intelligent valve alarm box for monitoring medical gas pressure according to claim 3 is characterized in that: The first-stage air pressure monitoring assembly (5) further includes a first pressure sensing element (52) disposed between the first airbag (51) and the monitoring valve body (4), and the second-stage air pressure monitoring assembly (6) further includes a second pressure sensing element (62) disposed between the second airbag (61) and the monitoring valve body (4). When the first pressure sensing element (52) detects that the pressure level of the first airbag (51) is within a detection range, the first airbag (51) and the second airbag (61) are in a non-contact state, so that the second pressure sensing element (62) is in an inactive state.

5. The intelligent valve alarm box for monitoring medical gas pressure according to claim 4, characterized in that: The first pressure sensing element (52) includes a pressure rod (521) slidably arranged on the monitoring valve body (4) along a direction perpendicular to the axis of the air outlet pipe (22), and a torque sensor (522) fixedly arranged on the monitoring valve body (4) for sensing the pressure applied to the pressure rod (521). The air outlet pipe (22) is provided with a sliding opening for the pressure rod (521) to slide. The torque sensor (522) has a rotating shaft (5221) connected thereto and a pressure plate (5222) fixedly connected to the rotating shaft (5221). The surface of the pressure plate (5222) contacts the end of the pressure rod (521) extending outward, and the end of the pressure rod (521) extending inward contacts the surface of the first airbag (51).

6. The intelligent valve alarm box for monitoring medical gas pressure according to claim 5, characterized in that: Both ends of the pressing rod (521) are round head structures.

7. The intelligent valve alarm box for monitoring medical gas pressure according to claim 6, characterized in that: The pressure rod (521) is provided with a first limiting portion (5211) and a second limiting portion (5212) located inside the monitoring valve body (4) and outside the monitoring valve body (4), respectively. When the second limiting portion (5212) contacts the monitoring valve body (4), the gas pressure in the gas outlet pipe (22) is in a low-pressure state, and when the first limiting portion (5211) contacts the monitoring valve body (4), the gas pressure in the gas outlet pipe (22) is in a high-pressure state.

8. The intelligent valve alarm box for monitoring medical gas pressure according to claim 4, characterized in that: The second pressure sensing element (62) comprises: a pressure sensor (621) fixedly mounted on the monitoring valve body (4); and A compression spring (622) sleeved on the air outlet pipe (22) and located between the pressure sensor (621) and the second air bag (61); When the second airbag (61) is not inflated, the compression spring (622) is in a state of not being acted upon by external force.

9. The intelligent valve alarm box for monitoring medical gas pressure according to claim 8, characterized in that: A ring sleeve (6221) is slidably provided in the monitoring valve body (4) and sleeved on the air outlet pipe (22), and the ring sleeve (6221) is located between the second air bag (61) and the compression spring (622).

10. The intelligent valve alarm box for monitoring medical gas pressure according to claim 2, characterized in that: The opening and closing assembly (42) comprises: a sleeve (421) slidably mounted on the air outlet pipe (22); and A linear driver (422) is used to drive the sleeve (421) to move; a return spring (423) sleeved on the air outlet pipe (22) is fixedly connected between the sleeve (421) and the monitoring valve body (4).

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