Pressure monitoring alarm device with touch function
By introducing an isolation module and a power transmission component into the pressure monitoring and alarm device, and utilizing the interaction between the electromagnetic coil and the permanent magnet, the sliding switching of the moving block is achieved, solving the problem of air supply interruption during maintenance and improving the safety and convenience of the device.
Patent Information
- Application Number
- CN202511110252.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-08
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2045-08-08
AI Technical Summary
Existing pressure monitoring and alarm devices require shutting down the main pipeline when maintaining the gas pressure sensor, which leads to gas supply interruption, affects normal gas supply, and poses inconvenience and safety hazards.
A pressure monitoring and alarm device with touch function was designed. It adopts an isolation module and a power transmission component. Through the interaction of an electromagnetic coil and a permanent magnet, the moving block can slide precisely between the connected position and the isolated position. This ensures continuous oxygen supply while monitoring pressure. During maintenance, the monitoring chamber is isolated from the main air intake chamber to prevent leakage interference.
This allows for maintenance of pressure sensors without affecting the continuity of air supply, improving the safety and convenience of maintenance operations and reducing system downtime risks and maintenance costs.
Smart Images

Figure CN120740845B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of pressure monitoring and alarm, and specifically to a pressure monitoring and alarm device with touch functionality. Background Technology
[0002] In daily use, it is often necessary to monitor the pressure and flow rate of medical gases to provide timely alarms when gas pressure is abnormal, thus preventing greater harm caused by gas pressure issues. The existing gas pressure detection method generally uses a gas pressure sensor to detect in real time. Once the detected value exceeds the threshold, an audible and visual alarm is immediately issued. The detected pressure, flow rate, and alarm status are then output through communication to improve the timeliness and effectiveness of the alarm.
[0003] However, existing pressure monitoring and alarm devices still have some shortcomings. For example, gas pressure sensors generally require regular maintenance after prolonged use to ensure they are in normal working order and to prevent gas pressure detection errors due to sensor failure, which could lead to even bigger problems. However, due to the structural limitations of existing monitoring devices, each time the gas pressure sensor is maintained, the main pipeline must be shut off before the sensor can be disassembled for inspection and maintenance, which inevitably affects the normal gas supply. The duration of the gas supply interruption depends entirely on the maintenance time of the gas pressure sensor, which is quite inconvenient. Summary of the Invention
[0004] The purpose of this invention is to provide a pressure monitoring and alarm device with touch function to solve the above-mentioned technical problems.
[0005] The objective of this invention can be achieved through the following technical solutions:
[0006] A pressure monitoring and alarm device with touch function includes: a housing, a T-shaped monitoring body disposed inside the housing, the T-shaped monitoring body having a main pipe interface and a pressure relief interface along the X-axis, and a monitoring interface along the Y-axis;
[0007] The main pipeline interface is fixed to the gas supply pipeline by a threaded connection. The monitoring interface is located on the top of the T-shaped monitoring body and is sealed with a pressure sensor module. The pressure relief interface is located on the side of the T-shaped monitoring body and is detachably fixed with a pressure relief pipe. An isolation module is also installed inside the T-shaped monitoring body. The isolation module is used to isolate the cavity where the monitoring interface is located and maintain the gas supply from the main pipeline when maintaining the pressure sensor module.
[0008] A touch screen control terminal is installed on the side of the casing.
[0009] Further, the isolation module comprises a column, the column is arranged at the intersection protrusion of the X-axis and the Y-axis inside the T-shaped monitoring body, a movable block is slidably arranged on the column, a supporting spring is arranged between the movable block and the intersection protrusion, the movable block is arranged in a parallelogram structure, the T-shaped monitoring body is internally divided into a main air inlet cavity, a monitoring cavity and a pressure relief cavity, a sealing ring is embedded on the outer circle of the movable block, the column is arranged in a T-shaped structure, the T-shaped end of the column is provided with an electromagnetic coil, a permanent magnet is embedded and fixed on the movable block at the position corresponding to the electromagnetic coil, and the bottom of the main air inlet cavity is threadedly connected and fixed with the downstream air supply pipe.
[0010] Further, when the electromagnetic coil is powered on, the movable block is in a communication position; when the electromagnetic coil is powered off, the movable block is in an isolation position.
[0011] When the movable block is in the communication position, the movable block is at the top of the column, and the main air inlet cavity is in communication with the monitoring cavity and the downstream air supply pipe at the same time; when the movable block is in the isolation position, the movable block is at the bottom of the column, and the monitoring cavity is only in communication with the pressure relief cavity.
[0012] Further, an anti-icing module is arranged in the T-shaped monitoring body, comprising: a heating ring, the heating ring is embedded on the bottom of the movable block and close to one side of the pressure relief cavity; a bypass hole is formed through the inlet of the pressure relief cavity, the bottom of the column is provided with a power supply contact, and the bottom of the movable block is provided with a power receiving contact.
[0013] When the movable block is in the isolation position, the power receiving contact of the movable block is in contact and conduction with the power supply contact at the bottom of the column, and the heating ring is powered on.
[0014] The movable block moves downward to drive the spring valve core in the bypass hole to move through the power transmission assembly, the bypass hole is opened, and a continuous pressure relief gas flow is formed.
[0015] The heat of the heating ring cooperates with the pressure relief gas flow to realize ice melting and active anti-blocking.
[0016] Further, the power transmission assembly comprises a conical push rod and a lever, the fulcrum of the lever is arranged on the inlet side wall of the pressure relief cavity, one end of the lever is located on the moving path of the conical push rod, and the other end is connected with the spring valve core.
[0017] When the movable block moves downward to the isolation position, the conical push rod presses the lever to amplify the pushing force, so that the spring valve core moves to open the bypass hole to establish a pressure relief path; when the movable block rises to the communication position, the push rod is separated from the lever, the spring valve core is reset, and the bypass hole is completely closed.
[0018] Further, the T-shaped monitoring body is also provided with a freeze-proof module, comprising: a micro air cavity, the micro air cavity is arranged through along the column axis, and the air inlet end of the micro air cavity is connected with an external dry gas source through a pipeline; the top of the column is also provided with a directional nozzle, and the directional nozzle is opposite to the monitoring interface.
[0019] When the movable block is in the isolation position, the external dry gas is continuously sprayed from the directional nozzle through the micro air cavity, forming a positive pressure dry gas curtain covering the monitoring interface.
[0020] Further, the end of the pressure relief pipe is also provided with a sound attenuation module for sound attenuation when the monitoring cavity is relieved of pressure, and a pressure relief valve is arranged on the pressure relief pipe.
[0021] The sound attenuation module comprises sound attenuation cotton and a perforated plate, and a sound attenuation cylinder is detachably and fixedly installed at the end of the pressure relief pipe, a layer of perforated plate is arranged in the sound attenuation cylinder, a plurality of small holes are uniformly distributed on the perforated plate, and sound attenuation cotton is tightly filled behind the perforated plate.
[0022] The beneficial effects of the present application are:
[0023] Through the movable block in the isolation module, the movable block can precisely slide between the communication position and the isolation position under the interaction of the electromagnetic coil and the permanent magnet, and cooperates with the supporting spring, in the communication position, the movable block skillfully connects the main air inlet cavity with the downstream air supply pipe and the monitoring cavity at the same time, ensures that the pressure sensor can monitor the air pressure in real time and accurately while ensuring continuous oxygen supply, and the movable block isolates the pressure relief cavity at the same time, prevents leakage from interfering with the monitoring accuracy; when the sensor needs to be maintained, i.e., switched to the isolation position, the electromagnetic coil is energized to drive the movable block to move downward against the spring force, at this time, the movable block physically isolates the monitoring cavity from the main air inlet cavity and the downstream air supply pipe, ensuring that the main pipeline gas supply is not affected at all; at the same time, the movable block synchronously opens the channel between the monitoring cavity and the pressure relief cavity, thereby ensuring the continuity of the oxygen supply system operation, improving the safety and convenience of the maintenance operation, and reducing the maintenance cost and system downtime risk. BRIEF DESCRIPTION OF DRAWINGS
[0024] The present application will be further described below with reference to the accompanying drawings.
[0025] Figure 1 It is a schematic view of the shell of the present application;
[0026] Figure 2 It is a structural schematic view of the T-shaped monitoring body in the present application;
[0027] Figure 3 It is a structural schematic view of the T-shaped monitoring body in the present application; Figure 2
[0028] Figure 4 It is a structural schematic view of the T-shaped monitoring body in the present application; Figure 3
[0029] Figure 5 It is a structural schematic view of the T-shaped monitoring body in the present application;
[0030] Figure 6 It is a structural schematic view of the power transmission assembly.
[0031] BRIEF DESCRIPTION OF DRAWINGS: 1, T-shaped monitoring body; 101, main air inlet cavity; 102, monitoring cavity; 103, pressure relief cavity; 2, main pipeline interface; 3, pressure relief interface; 4, monitoring interface; 5, pressure sensor module; 6, pressure relief pipe; 7, isolation module; 71, stand; 72, movable block; 73, supporting spring; 74, electromagnetic coil; 75, permanent magnet; 8, downstream gas supply pipe; 9, anti-icing module; 91, heating ring; 92, bypass hole; 93, power supply contact; 94, power receiving contact; 95, spring valve core; 96, power transmission assembly; 961, conical push rod; 962, lever; 11, anti-freezing module; 111, micro air cavity; 112, pipeline; 113, directional nozzle; 12, sound attenuation module; 121, sound attenuation cotton; 122, perforated plate; 123, sound attenuation cylinder; 13, touch screen control terminal. DETAILED DESCRIPTION
[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0033] Please refer to Figures 1-6 As shown in the drawings, the present application is a pressure monitoring and alarming device with touch function, comprising: a shell, a T-shaped monitoring body 1 is arranged inside the shell, the T-shaped monitoring body 1 is provided with a main pipeline interface 2 and a pressure relief interface 3 along the X-axis, and is provided with a monitoring interface 4 along the Y-axis;
[0034] The main pipeline interface 2 is fixedly connected with the gas supply pipeline through screw connection, the monitoring interface 4 is located at the top of the T-shaped monitoring body 1 and is sealingly connected with a pressure sensor module 5, the pressure relief interface 3 is located at the side of the T-shaped monitoring body 1 and is detachably fixedly connected with a pressure relief pipe 6, and the T-shaped monitoring body 1 is further provided with an isolation module 7 inside, which is used to isolate the cavity where the monitoring interface 4 is located and maintain the main pipeline gas supply when the pressure sensor module 5 is maintained;
[0035] A touch screen control terminal 13 is arranged on the side of the shell, which is used to display real-time pressure value and alarm state and receive touch instruction to configure alarm threshold.
[0036] Further, the isolation module 7 comprises a column 71 arranged at the intersection protrusion of the X-axis and the Y-axis inside the T-shaped monitoring body 1, a movable block 72 is slidably sleeved on the column 71, a supporting spring 73 is arranged between the movable block 72 and the intersection protrusion, the movable block 72 is arranged in a parallelogram structure, the inside of the T-shaped monitoring body 1 is divided into a main air inlet cavity 101, a monitoring cavity 102 and a pressure relief cavity 103, a sealing ring is embedded on the outer circle of the movable block 72, the column 71 is arranged in a T-shaped structure, the T-shaped end of the column 71 is provided with an electromagnetic coil 74, a permanent magnet 75 is embedded and fixed on the movable block 72 corresponding to the position of the electromagnetic coil 74, and the bottom of the main air inlet cavity 101 is threadedly connected and fixed with the downstream air supply pipe 8.
[0037] Further, when the electromagnetic coil 74 is powered on, the movable block 72 is in a communication position; when the electromagnetic coil 74 is powered off, the movable block 72 is in an isolation position.
[0038] When the movable block 72 is in the communication position, the movable block 72 is at the top of the column 71, and the main air inlet cavity 101 is in communication with the monitoring cavity 102 and the downstream air supply pipe 8 at the same time; when the movable block 72 is in the isolation position, the movable block 72 is at the bottom of the column 71, and the monitoring cavity 102 is only in a communication state with the pressure relief cavity 103.
[0039] In the present application, in order to solve the problem that the maintenance of the detection sensor needs to close the main pipeline 112, which affects the normal oxygen supply behavior in the prior art, the isolation module 7 is arranged, the monitoring cavity 102 where the pressure sensor module 5 to be maintained is closed by the isolation module 7, the normal oxygen supply pipeline 112 is temporarily separated from the monitoring cavity 102, and a relatively opposite state is formed, so as to achieve the purpose of considering the maintenance requirement and continuous oxygen supply requirement of the pressure sensor module 5; specifically, the oxygen supply pipeline, the main pipeline interface 2 enters the main air inlet cavity 101, since the movable block 72 is in the communication position at this time, the movable block 72 is at the top of the column 71, the movable block 72 is separated from the side wall of the main air inlet cavity 101 on the left side, so as to expose a gap as a flow passage, oxygen enters the monitoring cavity 102, and the other side of the movable block 72 is in abutting connection with the side wall of the pressure relief cavity, so as to form a sealing state, therefore, the monitoring cavity 102, the main air inlet cavity 101 and the pressure relief cavity 103 are not in communication, so as to reduce unnecessary leakage hazards, improve monitoring accuracy, and it should be noted that the main air inlet cavity 101 is in communication with the monitoring cavity 102 and the downstream air supply pipe 8 at the same time, and a main passage is formed; the oxygen entering the monitoring cavity 102 is detected by the pressure sensor module 5, so as to achieve the purpose of real-time monitoring of oxygen pressure; the pressure sensor module 5 can be a piezoresistive pressure sensor or a ceramic piezoresistive sensor.
[0040] When the pressure sensor module 5 needs to be maintained or replaced, at this time the electromagnetic coil 74 at the top of the stand column 71 is energized, the electromagnetic coil 74 is energized to push the magnetic pair permanent magnet 75, so that the permanent magnet 75 and the movable block 72 overcome the elastic force of the supporting spring 73 and move downward, when the movable block 72 moves to the bottom of the stand column 71, the switching from the communication position to the isolation position is realized, at this time the left side of the movable block 72 is in close contact with the side wall of the main air inlet chamber 101, realizing the isolation between the monitoring chamber 102 and the main air inlet chamber 101, and the right side of the movable block 72 is just exposed to the channel between the monitoring chamber 102 and the pressure relief chamber 103 downward, realizing the communication between the two, at this time the gas in the monitoring chamber 102 is released through the pressure relief valve to reach the normal pressure state, at this time the normal operation of the pressure sensor module 5 is carried out, so as to avoid the safety hidden danger caused by the operation under pressure, through the above-mentioned isolation module 7, the isolation and communication state can be freely switched, the dual needs of monitoring air pressure and convenient maintenance are considered, and the strong practicability is realized.
[0041] Further, the T-shaped monitoring body 1 is provided with an anti-icing module 9, which comprises: a heating ring 91, the heating ring 91 is embedded at the bottom of the movable block 72 and close to one side of the pressure relief chamber 103; a bypass hole 92 is provided at the inlet of the pressure relief chamber 103, a power supply contact 93 is provided at the bottom of the stand column 71, and a power receiving contact 94 is provided at the bottom of the movable block 72;
[0042] When the movable block 72 is in the isolation position, the power receiving contact 94 of the movable block 72 is in contact with the power supply contact 93 at the bottom of the stand column 71, and the heating ring 91 is powered;
[0043] The movable block 72 moves downward to drive the spring valve core 95 in the bypass hole 92 to move through the power transmission assembly 96, so as to realize the opening of the bypass hole 92 and form a continuous pressure relief gas flow;
[0044] The heat of the heating ring 91 cooperates with the pressure relief gas flow to realize ice melting and active anti-blocking.
[0045] In the present application, due to the inevitable doping of moisture in oxygen and the narrowness of the inlet of the pressure relief cavity 103, there is a possibility of ice blockage at the inlet of the existing pressure relief cavity 103. Therefore, the anti-ice blockage module 9 is provided. When the monitoring cavity 102 and the main air inlet cavity 101 are isolated by the isolation module 7, the anti-ice blockage module of the pressure relief cavity 103 only acts on the ice blockage at the inlet of the pressure relief cavity 103. On the one hand, it avoids the danger caused by heating the main air inlet cavity 101, and on the other hand, it can also avoid the damage of heating to the pressure sensor module 5, so as to achieve the effect of killing two birds with one stone. Specifically, when the movable block 72 moves downward to the isolation position, the power supply contact 94 of the movable block 72 is in contact with the power supply contact 93 at the bottom of the column 71, the heating ring 91 is powered, and the inlet of the pressure relief cavity 103 is heated, thereby achieving the purpose of active ice melting. At the same time, the mechanical force generated by the downward movement of the movable block 72 drives the spring valve core 95 in the bypass hole 92 to move through the power transmission assembly 96, and the bypass hole 92 is opened, thereby forming a continuous pressure relief gas flow. Then, the heat of the heating ring 91 cooperates with the pressure relief gas flow to realize ice melting and active anti-blocking, achieve double effect, and improve the final effect.
[0046] Further, the power transmission assembly 96 includes a conical push rod 961 and a lever 962, the fulcrum of the lever 962 is arranged on the inlet side wall of the pressure relief cavity 103, one end of the lever 962 is located on the movement path of the conical push rod 961, and the other end is connected with the spring valve core 95;
[0047] When the movable block 72 moves downward to the isolation position, the conical push rod 961 pushes down the lever 962 to amplify the pushing force. The lever 962 and the spring valve core 95 are provided with an active connection member, which can be a connecting rod or a steel wire rope. After converting the pushing force into pulling force, the spring valve core 95 can be pulled to move to the inlet of the pressure relief cavity 103, so that the spring valve core 95 overcomes the spring force to open the bypass hole 92, thereby establishing a pressure relief path. When the movable block 72 rises to the communication position, the push rod is separated from the lever 962, the spring valve core 95 is reset, and the bypass hole 92 is completely closed.
[0048] In the present application, since the fulcrum of the lever 962 is arranged on the inlet side wall of the pressure relief cavity 103, and one end of the lever 962 is located on the moving path of the conical push rod 961, when the push rod presses down the lever 962, according to the principle of the lever 962, an amplified thrust will be generated at the position where the other end of the lever 962 is connected with the spring valve core 95; originally, the spring valve core 95 is in the state of closing the bypass hole 92 under the action of the spring force, under the action of the amplified thrust, the spring valve core 95 starts to move against the spring force, thereby opening the bypass hole 92, so that the gas in the pressure relief cavity 103 can be discharged through the bypass hole 92, and the pressure relief passage is established; when the movable block 72 rises to the communication position, the push rod moves upward with the movable block 72, and is separated from the lever 962, at this time, the lever 962 loses the action force of the push rod, under the action of the spring force, the spring valve core 95 quickly resets, and tightly closes the bypass hole 92 again, preventing the gas from continuing to discharge from the channel, and maintaining the normal state of the gas flow in the device. Through the design of the power transmission assembly 96, the effective linkage between the position change of the movable block 72 and the opening and closing of the bypass hole 92 is realized, and the demand for pressure relief function in different working states is met.
[0049] Further, the T-shaped monitoring body 1 is further provided with an anti-freezing module 11, which comprises: a micro air cavity 111, the micro air cavity 111 is arranged through along the vertical column 71, and the air inlet end of the micro air cavity 111 is connected with an external dry gas source through a pipeline 112; the top of the vertical column 71 is further provided with a directional nozzle 113, the directional nozzle 113 is opposite to the monitoring interface 4; a one-way valve is arranged at the air inlet end to prevent backflow of the gas; the directional nozzle 113 is designed in a flat shape, and the direction of the nozzle forms an angle with the plane where the monitoring interface 4 is located, so that the dry gas sprayed can uniformly cover the monitoring interface 4 in a fan shape, and form a positive pressure dry gas curtain around the monitoring interface 4; the positive pressure value of the gas curtain is maintained in a suitable range by the gas supply pressure of the external dry gas source, for example, a gas supply pump.
[0050] When the movable block 72 is in the isolation position, the external dry gas is continuously sprayed from the directional nozzle 113 through the micro air cavity 111, and a positive pressure dry gas curtain covers the monitoring interface 4.
[0051] In the present application, the activation of the anti-freezing module 11 strictly depends on the state of the isolation module 7, and only when the movable block 72 moves to the isolation position, the external dry gas source is allowed to pass through the micro air cavity 111 and spray dry gas to the area of the monitoring interface 4 through the directional nozzle 113; the implementation of the above process is that the movable block 72 is in sliding sealing connection with the column in the communication position, so as to block the top opening of the directional nozzle 113; only when the movable block is in the isolation position, the movable block 72 is away from the area of the directional nozzle 113, and at this time, the directional nozzle 113 is exposed, so that the gas can be sprayed; the dry gas at the ambient temperature can obviously heat the area to achieve the purpose of anti-freezing, and can also take away the moisture from the pressure relief cavity 103; the anti-freezing module 11 can be actively performed in the non-maintenance state, and only needs to be intermittently started by the isolation module 7, so as to ensure that the pressure sensor module 5 is in an effective state; through the above technical scheme, on the one hand, it is ensured that the anti-freezing measure is started only when it is needed, and unnecessary energy consumption and interference to the sensor are avoided; on the other hand, the dry gas curtain only acts on the outside of the monitoring interface 4 and does not contact the sensor diaphragm, the gas temperature is controllable, such as close to the ambient temperature, the sensor zero drift caused by heat conduction is avoided, and the accuracy of the pressure sensor module 5 is improved.
[0052] Further, the end of the pressure relief pipe 6 is also provided with a sound attenuation module 12 for attenuating the sound when the pressure is relieved in the monitoring cavity 102.
[0053] The sound attenuation module 12 comprises sound attenuation cotton 121 and a perforated plate 122, and a sound attenuation cylinder 123 is detachably and fixedly installed at the end of the pressure relief pipe 6, a layer of the perforated plate 122 is arranged in the sound attenuation cylinder 123, a plurality of small holes are uniformly distributed on the perforated plate 122, and the sound attenuation cotton 121 is tightly filled behind the perforated plate 122.
[0054] The sound attenuation cotton 121 in the present application is selected from materials with good sound absorption effect, such as glass wool or polyurethane foam; when the gas in the monitoring cavity 102 is discharged through the pressure relief pipe 6, the gas first passes through the perforated plate 122, the airflow is dispersed into a plurality of thin streams, and then enters the sound attenuation cotton 121; the sound attenuation cotton 121 absorbs and attenuates the noise generated by the gas flow through the sound absorption effect, so as to realize the sound attenuation function when the pressure is relieved in the monitoring cavity 102.
[0055] The above has described one embodiment of the present application in detail, but the content described is only the preferred embodiment of the present application, and cannot be considered as limiting the implementation range of the present application. Any equivalent changes and improvements made according to the scope of the present application should still belong to the patent coverage range of the present application.
Claims
1. A pressure monitoring and alarm device with touch function, characterized in that, include: The casing contains a T-shaped monitoring body. The T-shaped monitoring body has a main pipe interface and a pressure relief interface along the X-axis, and a monitoring interface along the Y-axis. The main pipeline interface is fixed to the gas supply pipeline by a threaded connection. The monitoring interface is located on the top of the T-shaped monitoring body and is sealed with a pressure sensor module. The pressure relief interface is located on the side of the T-shaped monitoring body and is detachably fixed with a pressure relief pipe. An isolation module is also installed inside the T-shaped monitoring body. The isolation module is used to isolate the cavity where the monitoring interface is located and maintain the gas supply from the main pipeline when maintaining the pressure sensor module. A touchscreen control terminal is located on the side of the housing; the isolation module includes a column, which is located at the intersection of the X-axis and Y-axis inside the T-shaped monitoring body. A movable block is slidably mounted on the column, and a support spring is provided between the movable block and the intersection protrusion. The movable block is configured as a parallelogram structure. The T-shaped monitoring body is divided into a main air intake chamber, a monitoring chamber, and a pressure relief chamber. A sealing ring is embedded in the outer ring of the movable block. The column is configured as a T-shaped structure, and an electromagnetic coil is located at the T-shaped end of the column. A permanent magnet is embedded and fixed on the movable block at the position corresponding to the electromagnetic coil, and the bottom of the main air intake chamber is threaded and fixed to the downstream air supply pipe. When the electromagnetic coil is energized, the movable block is in the connected position; when the electromagnetic coil is de-energized, the movable block is in the isolated position. When the movable block is in the connected position, it is located at the top of the column, and the main air intake chamber is simultaneously connected to the monitoring chamber and the downstream air supply pipe; when the movable block is in the isolated position, it is located at the bottom of the column, and the monitoring chamber is only connected to the pressure relief chamber.
2. The pressure monitoring and alarm device with touch function according to claim 1, characterized in that, The T-shaped monitoring body is equipped with an anti-icing module, including: a heating ring, which is embedded in the bottom of the movable block and close to the pressure relief chamber; a bypass hole is opened through the inlet of the pressure relief chamber; a power supply contact is provided at the bottom of the column; and a power receiving contact is provided at the bottom of the movable block. When the movable block is in the isolated position, the power receiving contact of the movable block makes contact with the power supply contact at the bottom of the column and conducts electricity, thus powering the heating ring; The downward movement of the movable block drives the spring valve core in the bypass hole to move through the power transmission component, thereby opening the bypass hole and forming a continuous pressure relief airflow; The heat from the heating ring, combined with the pressure relief airflow, achieves ice melting and flushing, as well as active anti-clogging.
3. The pressure monitoring and alarm device with touch function according to claim 2, characterized in that, The power transmission assembly includes a tapered push rod and a lever. The fulcrum of the lever is located on the inlet side wall of the pressure relief chamber. One end of the lever is located on the moving path of the tapered push rod, and the other end is connected to the spring valve core. When the movable block moves down to the isolation position, the tapered push rod presses down on the lever and amplifies the thrust, causing the spring valve core to overcome the spring force and move to open the bypass hole, thereby establishing a pressure relief passage; when the movable block rises to the connection position, the push rod disengages from the lever, the spring valve core resets, and the bypass hole is completely closed.
4. The pressure monitoring and alarm device with touch function according to claim 2, characterized in that, The T-shaped monitoring body is also equipped with an anti-freeze module, including: a micro air chamber, which is arranged through the column axis, and the air inlet of the micro air chamber is connected to an external dry air source through a pipeline; a directional nozzle is also provided at the top of the column, which is directly facing the monitoring interface. When the active block is in the isolated position, external drying gas is continuously ejected from the directional nozzle through the micro air chamber, forming a positive pressure drying air curtain covering the monitoring interface.
5. The pressure monitoring and alarm device with touch function according to claim 1, characterized in that, The end of the pressure relief pipe is also equipped with a silencing module to silence the sound when the monitoring chamber is depressurized, and a pressure relief valve is installed on the pressure relief pipe.
6. The pressure monitoring and alarm device with touch function according to claim 5, characterized in that, The noise reduction module includes noise reduction cotton and a perforated plate. A noise reduction cylinder is detachably and fixedly installed at the end of the pressure relief pipe. A perforated plate is installed inside the noise reduction cylinder. Several small holes are evenly distributed on the perforated plate. Noise reduction cotton is tightly filled behind the perforated plate.
Citation Information
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