Micro-pressure signal alarm device
By designing a micro-pressure signal alarm device, using differential pressure, low pressure, medium pressure sensors and normally air-closing control valves, real-time monitoring and feedback of micro-pressure signals are achieved, solving the problem that micro-pressure signals cannot be detected in the pneumatic system.
Patent Information
- Application Number
- CN202323581419.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-27
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2033-12-27
AI Technical Summary
The detection of micro-pressure signals cannot be achieved in existing pneumatic systems.
A micro-pressure signal alarm device is designed, including a differential pressure sensor, a low pressure sensor, a medium pressure sensor, a normally air-closing control valve, an indicator light and an alarm. The normally air-closing control valve is driven to redirect the normally air-closing control valve through the micro-pressure signal to achieve real-time monitoring and feedback.
Real-time monitoring and feedback of micro-voltage signals are realized, and the problem of inability to detect micro-voltage signals in the prior art is solved.
Smart Images
Figure CN222185303U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pneumatic systems, and more specifically to a micro-pressure signal alarm device. Background Art
[0002] In pneumatic systems, valves are the most widely used components in pneumatic circuits. The most commonly used ones are three-position five-way pneumatic control valves, two-position five-way pneumatic control valves, etc., which cannot realize micro-pressure signal detection. Summary of the invention
[0003] In view of the above-mentioned drawbacks existing in the prior art, the utility model provides a micro-pressure signal alarm device to solve the problem that the prior art cannot realize micro-pressure signal detection.
[0004] As a first aspect of the utility model, a micro-pressure signal alarm device is provided, including three micro-pressure sensors, three normally closed air-controlled valves, three indicator lights, three alarms and three signal adjustment ports, the three micro-pressure sensors are respectively a differential pressure sensor, a low pressure sensor and a medium pressure sensor, the three normally closed air-controlled valves are respectively a first normally closed air-controlled valve, a second normally closed air-controlled valve and a third normally closed air-controlled valve, the three indicator lights are respectively a first indicator light, a second indicator light and a third indicator light, the three alarms are respectively a first alarm, a second alarm and a third alarm, the three signal adjustment ports are respectively a first signal adjustment port, a second signal adjustment port and a third signal adjustment port, the two air inlets at the upper end of the differential pressure sensor are respectively introduced into internal pressure gas and external pressure gas to generate differential pressure gas; the pilot port at the bottom end of the differential pressure sensor is respectively connected to the first indicator light and the first alarm through the first normally closed air-controlled valve Alarm; low-pressure gas is introduced into the air inlet at the upper end of the low-pressure sensor, and the pilot port at the bottom end of the low-pressure sensor is connected to the second indicator light and the second alarm respectively through the second normally closed air-controlled valve; medium-pressure gas is introduced into the air inlet at the upper end of the medium-pressure sensor, and the pilot port at the bottom end of the medium-pressure sensor is connected to the third indicator light and the third alarm respectively through the third normally closed air-controlled valve; the first normally closed air-controlled valve, the second normally closed air-controlled valve and the third normally closed air-controlled valve are all arranged on the air-controlled valve base, one end of the first signal regulating port, one end of the second signal regulating port and one end of the third signal regulating port are respectively connected to the pilot port of the differential pressure sensor, the pilot port of the low-pressure sensor and the pilot port of the medium-pressure sensor, and the other end of the first signal regulating port, the other end of the second signal regulating port and the other end of the third signal regulating port are connected and then connected to the three air inlets at the bottom of the air-controlled valve base.
[0005] Furthermore, the three air inlets at the bottom of the air-controlled valve base are respectively the air inlet of the first normally closed air-controlled valve, the air inlet of the second normally closed air-controlled valve and the air inlet of the third normally closed air-controlled valve. Each normally closed air-controlled valve is also provided with an air-controlled port and a working port. The air-controlled port of the first normally closed air-controlled valve is connected to the pilot port of the differential pressure sensor, and the working port of the first normally closed air-controlled valve is respectively the first indicator light and the first alarm; the air-controlled port of the second normally closed air-controlled valve is connected to the pilot port of the low-pressure sensor, and the working port of the second normally closed air-controlled valve is respectively the second indicator light and the second alarm; the air-controlled port of the third normally closed air-controlled valve is connected to the pilot port of the medium-pressure sensor, and the working port of the third normally closed air-controlled valve is respectively the third indicator light and the third alarm.
[0006] Furthermore, the first normally closed air-controlled valve, the second normally closed air-controlled valve and the third normally closed air-controlled valve are all two-position three-way valves.
[0007] The micro-pressure signal alarm device provided by the utility model has the following advantages: according to the change of the micro-pressure signal, the corresponding normally closed air control valve is driven to change direction, thereby realizing real-time monitoring and feedback of the micro-pressure signal through the corresponding indicator light and alarm. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation to the present invention.
[0009] Figure 1 This is a structural schematic diagram of the micro-pressure signal alarm device provided by the utility model.
[0010] Figure 2 This is a structural schematic diagram of the micro-pressure sensor provided by the utility model. DETAILED DESCRIPTION
[0011] In order to further explain the technical means and effects adopted by the utility model to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the micro-pressure signal alarm device proposed according to the utility model are described in detail below in combination with the accompanying drawings and preferred embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of the utility model.
[0012] It should be noted that the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so as to describe the embodiments of the utility model described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.
[0013] In this embodiment, a micro-pressure signal alarm device is provided. Figure 1 As shown, the micro-pressure signal alarm device includes three micro-pressure sensors, three normally closed air-controlled valves, three indicator lights, three alarms and three signal adjustment ports. The three micro-pressure sensors are respectively a differential pressure sensor 1, a low pressure sensor 2 and a medium pressure sensor 3. The three normally closed air-controlled valves are respectively a first normally closed air-controlled valve 4, a second normally closed air-controlled valve 5 and a third normally closed air-controlled valve 6. The three indicator lights are respectively a first indicator light 7, a second indicator light 9 and a third indicator light 11. The three alarms are respectively a first alarm 8, a second alarm 10 and a third alarm 12. The three signal adjustment ports are respectively a first signal adjustment port 14, a second signal adjustment port 15 and a third signal adjustment port 16. The two air inlets at the upper end of the differential pressure sensor 1 are respectively introduced into the internal pressure gas and the external pressure gas to generate a differential pressure gas; the pilot port at the bottom end of the differential pressure sensor 1 is respectively connected to the first indicator light 7 and the first alarm 8 through the first normally closed air-controlled valve 4; the low pressure sensor 2 Low-pressure gas is introduced into the air inlet at the upper end, and the pilot port at the bottom end of the low-pressure sensor 2 is connected to the second indicator light 9 and the second alarm 10 respectively through the second normally closed air-controlled valve 5; medium-pressure gas is introduced into the air inlet at the upper end of the medium-pressure sensor 3, and the pilot port at the bottom end of the medium-pressure sensor 3 is connected to the third indicator light 11 and the third alarm 12 respectively through the third normally closed air-controlled valve 6; the first normally closed air-controlled valve 4, the second normally closed air-controlled valve 5 and the third normally closed air-controlled valve 6 are all arranged on the air-controlled valve base 13, one end of the first signal adjustment port 14, one end of the second signal adjustment port 15 and one end of the third signal adjustment port 16 are respectively connected to the pilot port of the differential pressure sensor 1, the pilot port of the low-pressure sensor 2 and the pilot port of the medium-pressure sensor 3, and the other end of the first signal adjustment port 14, the other end of the second signal adjustment port 15 and the other end of the third signal adjustment port 16 are connected and then connected to the three air inlets at the bottom of the air-controlled valve base 13 respectively.
[0014] In this embodiment, the function of the signal regulating port is to regulate the air inlet flow rate of the air source so that the micro-pressure sensor will not output the air pressure that can control the normally closed air-controlled valve when there is no micro-pressure signal.
[0015] In this embodiment, the three air inlets at the bottom of the air-controlled valve base 13 are respectively the air inlet of the first normally closed air-controlled valve 4, the air inlet of the second normally closed air-controlled valve 5 and the air inlet of the third normally closed air-controlled valve 6. Each normally closed air-controlled valve is also provided with an air-controlled port and a working port. The air-controlled port of the first normally closed air-controlled valve 4 is connected to the pilot port of the differential pressure sensor 1, and the working ports of the first normally closed air-controlled valve 4 are respectively the first indicator light 7 and the first alarm 8; the air-controlled port of the second normally closed air-controlled valve 5 is connected to the pilot port of the low pressure sensor 2, and the working ports of the second normally closed air-controlled valve 5 are respectively the second indicator light 9 and the second alarm 10; the air-controlled port of the third normally closed air-controlled valve 6 is connected to the pilot port of the medium pressure sensor 3, and the working ports of the third normally closed air-controlled valve 6 are respectively the third indicator light 11 and the third alarm 12.
[0016] In this embodiment, the first normally closed air-controlled valve 4 , the second normally closed air-controlled valve 5 and the third normally closed air-controlled valve 6 are all two-position three-way valves.
[0017] The micro-pressure signal alarm device provided by the utility model has the following working principle:
[0018] The positive pressure device outputs pressure gas of a certain pressure value to the micro-pressure sensor, wherein the differential pressure sensor 1 can receive pressure gas between 5.0mbar and 15.0mbar, the low pressure sensor 2 can receive low pressure gas between 0.5mbar and 5.0mbar, and the medium pressure sensor 3 can receive medium pressure gas between 2.0mbar and 10.0mbar. When the micro-pressure sensor receives the pressure gas, the pressure gas drives the valve core in the micro-pressure sensor to move downward and switch, so that the valve core of the micro-pressure sensor opens. At this time, the pilot port of the micro-pressure sensor obtains the pressure gas, and the pressure gas is output to the air control port of the normally closed air control valve through the pilot port of the micro-pressure sensor to drive the valve core inside the normally closed air control valve to switch, so that the working port and the air inlet of the normally closed air control valve are connected, and pressure gas is output to the working port. At this time, the working port outputs a pressure signal to the corresponding indicator light and alarm, and the pressure range of the pressure gas is fed back through the indicator light and alarm.
[0019] For example, Figure 2As shown, when the positive pressure device outputs a pressure gas between 0.5 mbar and 5.0 mbar, the air inlet 17 of the low pressure sensor 2 can receive the pressure gas output by the positive pressure device. After the low pressure sensor 2 receives the pressure gas, the pressure gas drives the valve core in the low pressure sensor 2 to move downward and switch, so that the valve core of the low pressure sensor 2 opens. At this time, the pilot port 18 of the low pressure sensor 2 obtains the pressure gas, and the pressure gas is output to the air control port of the normally closed air control valve 5 through the pilot port 18 of the low pressure sensor 2 to drive the valve core inside the normally closed air control valve 5 to switch, so that the working port and the air inlet of the normally closed air control valve 5 are connected, and pressure gas is output to the working port. At this time, the working port outputs a pressure signal to the corresponding indicator light 9 and alarm 10, and the indicator light 9 and alarm 10 can feedback that the pressure gas currently output by the positive pressure device is low pressure gas.
[0020] The micro-pressure signal alarm device provided by the utility model drives the corresponding normally closed air control valve to change direction according to the change of the micro-pressure signal, thereby realizing the real-time monitoring feedback of the micro-pressure signal through the corresponding indicator light and the alarm.
[0021] The above description is only a preferred embodiment of the present invention, and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of equivalent changes using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.
Claims
1. A micro-pressure signal alarm device, characterized in that: The invention comprises three micro-pressure sensors, three normally closed air-controlled valves, three indicator lights, three alarms and three signal adjustment ports. The three micro-pressure sensors are respectively a differential pressure sensor (1), a low pressure sensor (2) and a medium pressure sensor (3). The three normally closed air-controlled valves are respectively a first normally closed air-controlled valve (4), a second normally closed air-controlled valve (5) and a third normally closed air-controlled valve (6). The three indicator lights are respectively a first indicator light (7), a second indicator light (9) and a third indicator light (11). The three alarms are respectively a first alarm (8), a second alarm (10) and a third alarm (12). The three signal adjustment ports are respectively a first signal adjustment port (14), a second signal adjustment port (15) and a third signal adjustment port (16). Two air inlets at the upper end of the differential pressure sensor (1) are respectively connected to the internal pressure gas and the external pressure gas to generate differential pressure gas. The pilot port at the bottom end of the differential pressure sensor (1) is respectively connected to the first indicator light (7) and the first alarm (8) through the first normally closed air-controlled valve (4). The air inlet at the upper end of the low pressure sensor (2) is connected to the first normally closed air-controlled valve (4). The low-pressure gas is introduced into the pilot port at the bottom of the low-pressure sensor (2) through the second normally closed gas control valve (5) to connect the second indicator light (9) and the second alarm (10) respectively; the medium-pressure gas is introduced into the air inlet at the upper end of the medium-pressure sensor (3), and the pilot port at the bottom end of the medium-pressure sensor (3) is connected to the third indicator light (11) and the third alarm (12) respectively through the third normally closed gas control valve (6); the first normally closed gas control valve (4), the second normally closed gas control valve (5) and the third normally closed gas control valve (6) are all arranged on the gas control valve base. (13), one end of the first signal regulating port (14), one end of the second signal regulating port (15) and one end of the third signal regulating port (16) are respectively connected to the pilot port of the differential pressure sensor (1), the pilot port of the low pressure sensor (2) and the pilot port of the medium pressure sensor (3), and the other end of the first signal regulating port (14), the other end of the second signal regulating port (15) and the other end of the third signal regulating port (16) are connected and then respectively connected to three air inlets at the bottom of the air control valve base (13).
2. A micro-pressure signal alarm device according to claim 1, characterized in that: The three air inlets at the bottom of the air control valve base (13) are respectively the air inlet of the first normally closed air control valve (4), the air inlet of the second normally closed air control valve (5) and the air inlet of the third normally closed air control valve (6). Each normally closed air control valve is also provided with an air control port and a working port. The air control port of the first normally closed air control valve (4) is connected to the pilot port of the differential pressure sensor (1), and the working ports of the first normally closed air control valve (4) are respectively the first indicator light (7) and the first alarm (8); the air control port of the second normally closed air control valve (5) is connected to the pilot port of the low pressure sensor (2), and the working ports of the second normally closed air control valve (5) are respectively the second indicator light (9) and the second alarm (10); the air control port of the third normally closed air control valve (6) is connected to the pilot port of the medium pressure sensor (3), and the working ports of the third normally closed air control valve (6) are respectively the third indicator light (11) and the third alarm (12).
3. A micro-pressure signal alarm device according to claim 1, characterized in that: The first normally closed air-controlled valve (4), the second normally closed air-controlled valve (5) and the third normally closed air-controlled valve (6) are all two-position three-way valves.