Multi-dimensional pressure detection motor valve
By installing a sensor housing in the motor valve and sealing it with the valve body, the pressure of the inlet and outlet chambers can be detected simultaneously. The built-in multi-dimensional detection unit solves the problem that existing motor valves cannot detect the pressure and flow of the inlet chamber, thus improving the service life of the sensor and the safety of the valve.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN SHIELD TECH CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-05-12
AI Technical Summary
Existing motor valves can only detect the pressure in the air chamber, but cannot detect the pressure and flow rate in the inlet air chamber. Furthermore, the sensors are easily contaminated by impurities in the pipeline, resulting in a short service life and potential safety hazards.
Design a multi-dimensional pressure detection motor valve, which includes a sensor housing and a valve body sealed together, an inlet chamber and an outlet chamber with through holes, a built-in pressure, flow and temperature detection unit, and a motor shaft controlled by a handle to open and close the valve, protecting the sensor from contamination.
It enables simultaneous detection of pressure in both the inlet and outlet chambers, preventing safety accidents, extending the lifespan of the sensors, and improving the safety and reliability of valve control.
Smart Images
Figure CN224229317U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of valve technology, and in particular to a multi-dimensional pressure detection motor valve. Background Technology
[0002] An electric motor valve is a type of valve installed and used on natural gas pipelines. It mainly consists of a valve body, motor, seals, and sensors. Currently, conventional electric motor valves only have a detection unit located in the outlet chamber, and only one pressure detection unit (i.e., only one pressure sensor). Therefore, they can only detect the outlet chamber pressure and cannot detect the inlet chamber pressure. Furthermore, because there is no flow detection unit, flow rate cannot be detected. This means that when there are abnormal flow rates in the pipeline (such as pipe detachment, pipeline damage, or leaks at pipe joints), it cannot be monitored, potentially leading to safety accidents.
[0003] In addition, the pressure detection unit of conventional motor valves is directly exposed inside the pipeline, and impurities and oil stains in the pipeline will directly adhere to the sensor surface, resulting in a short service life. Summary of the Invention
[0004] The purpose of this invention is to provide a multi-dimensional pressure detection motor valve to solve the above-mentioned problems.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a multi-dimensional pressure detection motor valve includes a valve body, a motor, a sensor, and a seal. The valve body includes an inlet chamber and an outlet chamber, and also includes a sensor housing. The sensor is disposed below the valve body. The sensor housing has through holes at corresponding positions in the inlet and outlet chambers, and the inlet and outlet chambers are respectively connected to the through holes. A diaphragm and a valve disc are disposed above the valve body. A main shaft is connected to the valve disc. A circuit board is disposed above the main shaft. A handle is connected to the upper end of the main shaft. The motor is located on one side of the main shaft. The valve body also includes an upper housing. The motor, circuit board, and valve disc are all located inside the upper housing. The main shaft extends out from the upper housing, and the handle is located on the outer side of the upper end of the upper housing.
[0006] This utility model features a sensor housing that is sealed to the valve body via, for example, an O-ring. Preferably, the sensor housing has a cover plate at its lower end, which is connected to the valve body with screws to press the sensor housing into place. The sensor circuit board is placed below the housing and secured with a sealing ring and threads. Preferably, the encapsulation is an integral structure for fixation. This structure offers good sealing performance, high stability, and long service life.
[0007] In addition, the sensor housing has two through holes that connect to the inlet and outlet chambers of the valve body, respectively, allowing for simultaneous detection of pressure in both chambers. A manually controlled handle is also included. When the circuit board receives a valve-closing signal, it controls the motor to rotate, which in turn drives the main shaft via gears. The rotating main shaft moves the valve disc up or down, thus controlling the valve's opening and closing. The handle rotates simultaneously with the main shaft, allowing observation of the motor's operation. Rotating the handle also controls the main shaft's rotation, which in turn moves the valve disc to control the valve's opening and closing.
[0008] As a preferred technical solution, the sensor integrates a pressure detection unit, a flow detection unit, and a temperature detection unit. It can simultaneously detect multiple parameters such as pressure, flow rate, and temperature, thereby ensuring pipeline safety and effectively preventing accidents. For example, when abnormal flow occurs in the pipeline (such as pipe detachment, pipeline damage, or leaks at pipe joints), a motor can be used to close the valve, cutting off the gas supply and effectively preventing accidents.
[0009] As a preferred technical solution, the valve disc is connected to the main shaft via a threaded screw.
[0010] As a preferred technical solution, a limiting groove is provided at the upper end of the valve disc. This can fix the valve disc and prevent it from rotating during vertical displacement, resulting in higher precision and better sealing performance.
[0011] Compared with the prior art, the advantages of this utility model are that it can simultaneously detect the pressure and flow rate of the air inlet and outlet chambers, and can close the valve and cut off the air source by setting a handle, thereby effectively avoiding safety accidents. In addition, the sensor housing effectively protects the sensor and extends its service life. Attached Figure Description
[0012] Figure 1 This is a structural diagram of the multi-dimensional pressure detection motor valve of this utility model;
[0013] In the diagram: 1. Valve body; 2. Motor; 3. Sensor; 4. Inlet chamber; 5. Outlet chamber; 6. Sensor housing; 7. Diaphragm; 8. Valve disc; 9. Spindle; 10. Circuit board; 11. Handle; 12. Upper housing; 13. Limiting groove; 14. Cover plate. Detailed Implementation
[0014] The present invention will be further described below with reference to the embodiments.
[0015] Example 1:
[0016] See Figure 1A multi-dimensional pressure detection motor valve includes a valve body 1, a motor 2, a sensor 3, and a seal. The valve body includes an air inlet chamber 4 and an air outlet chamber 5, and also includes a sensor housing 6. The sensor 3 is disposed below the valve body 1. The sensor housing 6 has through holes at corresponding positions of the air inlet chamber 4 and the air outlet chamber 5, and the air inlet chamber 4 and the air outlet chamber 5 are respectively connected to the through holes. A diaphragm 7 and a valve disc 8 are disposed above the valve body 1. A main shaft 9 is connected to the valve disc 8 by a threaded screw. A circuit board 10 is disposed above the main shaft 9. A handle 11 is connected to the upper end of the main shaft 9. The motor 2 is located on one side of the main shaft 9. The valve body also includes an upper housing 12. The motor 2, the circuit board 10, and the valve disc 8 are all located inside the upper housing 12. The main shaft 9 extends out from the upper housing 12. The handle 11 is located on the outer side of the upper end of the upper housing 12.
[0017] In this embodiment, the sensor 3 has a built-in pressure detection unit, flow detection unit and temperature detection unit; the upper end of the valve disc 8 is provided with a limit groove 13; the lower end of the sensor housing 6 has a cover plate 14, which is screwed to the valve body 1 to press the sensor housing 6 to achieve fixation.
[0018] In this embodiment, the circuit board has a signal transmission function, which can detect the pipeline pressure and flow status in real time through external devices or mobile APP, and control the valve opening and closing. This is prior art known to those skilled in the art. When the product detects abnormal pressure or flow in the pipeline, it can start the motor 2 to control the main shaft 9 to drive the valve disc 8 to automatically close the valve; in addition, the valve can also be manually opened and closed by rotating the handle 11.
[0019] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A multi-dimensional pressure detection motor valve, comprising a valve body, a motor, a sensor, and a seal, wherein the valve body includes an inlet chamber and an outlet chamber, characterized in that, It also includes a sensor housing, the sensor being disposed below the valve body, the sensor housing having through holes at corresponding positions of the air inlet and air outlet chambers, the air inlet and air outlet chambers being connected to the through holes respectively; a diaphragm and valve disc are disposed above the valve body, a main shaft is connected to the valve disc, a circuit board is disposed above the main shaft, a handle is connected to the upper end of the main shaft, and the motor is located on one side of the main shaft; it also includes an upper housing, the motor, circuit board, and valve disc are all located inside the upper housing, the main shaft extends out from the upper housing, and the handle is located on the outer side of the upper end of the upper housing.
2. The multidimensional pressure detection motor valve according to claim 1, characterized in that, The sensor has a built-in pressure detection unit, flow detection unit, and temperature detection unit.
3. The multidimensional pressure detection motor valve according to claim 1, characterized in that, The valve disc is connected to the main shaft via a threaded screw.
4. The multidimensional pressure detection motor valve according to claim 1, characterized in that, A limit groove is provided at the upper end of the valve disc.