A pressure sensor and flow zero point correction device thereof

Abstract

The present invention relates to the field of flow monitoring technology, and specifically to a pressure sensor and a flow zero point correction device thereof, comprising a valve body, a pipeline, a ball valve, a shell, a connecting shaft, a rotating unit, a limit plate, an electric push rod, a block, a controller and a detection unit, the valve body is connected with the pipeline, the ball valve is installed inside the valve body and is fixedly connected with the ball valve, the other end of the connecting shaft is connected with the rotating unit, the limit plate is fixedly connected with the connecting shaft and is sleeved on the outer wall of the connecting shaft, the limit plate has a plurality of slots, and is connected with an upper device through a controller, the rotating unit is started, drives the connecting shaft to rotate, drives the ball valve to rotate in the valve body, and then controls the flow of water, and at the same time the electric push rod is started, drives the block to enter the slot, limits the limit plate, makes the connecting shaft unable to rotate, and the water flow is detected by the detection unit, thereby when the user owes fees, the ball valve is remotely controlled to be switched on and off, and the customer's requirements for leakage rate control and anti-disassembly are met.

Description

Technical Field

[0001] The present invention relates to the technical field of flow monitoring, and in particular to a pressure sensor and a flow zero point correction device thereof. Background Art

[0002] At present, in order to detect the water flow rate and water flow pressure, a water pressure sensor body and a water flow sensor are arranged on the valve body at the same time to detect the water flow condition in the valve pipeline.

[0003] However, in the aforementioned prior art, the valve body cannot be remotely controlled, and when the user is in arrears, remote on / off control cannot be performed. Summary of the invention

[0004] The purpose of the present invention is to provide a pressure sensor and a flow zero point correction device thereof, which solves the problem in the prior art that the valve body cannot be remotely controlled and the remote switch control cannot be performed when the user is in arrears.

[0005] To achieve the above-mentioned purpose, the present invention provides a pressure sensor, including a valve body, a pipeline, a ball valve, a shell, a connecting shaft, a rotating unit, a limit plate, an electric push rod, a block, a controller and a detection unit, wherein the valve body is communicated with the pipeline, the ball valve is installed inside the valve body, the shell is fixedly connected to the valve body and is located above the valve body, one end of the connecting shaft passes through the valve body and is fixedly connected to the ball valve, the other end of the connecting shaft is connected to the rotating unit, the limit plate is fixedly connected to the connecting shaft and is sleeved on the outer wall of the connecting shaft, the electric push rod is fixedly connected to the shell and is located on the inner top wall of the shell, the output end of the electric push rod is fixedly connected to the block, the limit plate has a plurality of slots, and the blocks are mutually adapted to any of the slots, the detection unit is arranged on the pipeline, the controller is installed on the inner side wall of the shell, and the controller is electrically connected to the rotating unit, the electric push rod and the detection unit respectively.

[0006] Wherein, the rotating unit includes a motor and a rotating shaft, the motor is fixedly connected to the outer shell and is located on the inner top wall of the outer shell, the output end of the motor is fixedly connected to one end of the rotating shaft, the other end of the rotating shaft is fixedly connected to the other end of the connecting shaft, and the controller is electrically connected to the motor.

[0007] Among them, the detection unit includes a support block, a threaded barrel, a threaded rod, a protective shell and a pressure sensor body, the threaded rod and the threaded barrel are adapted to each other, the support block is fixedly connected to the threaded rod and is located above the threaded rod, the protective shell is fixedly connected to the threaded rod and is located below the threaded rod, the pressure sensor body is fixedly connected to the protective shell, and the protective shell is sleeved on the outer wall of the pressure sensor body.

[0008] Wherein, the detection unit further includes an instrument, which is fixedly connected to the support block and located above the support block, the instrument is electrically connected to the pressure sensor body, and the controller is electrically connected to the pressure sensor body.

[0009] Wherein, the pressure sensor further comprises a maintenance component, and the maintenance component is arranged on the housing.

[0010] Wherein, the maintenance assembly includes multiple fixing blocks, a plate body and multiple bolts, the multiple fixing blocks are fixedly connected to the outer shell and are distributed in sequence on the inner wall of the outer shell, and the plate body is connected to the multiple fixing blocks through the multiple bolts.

[0011] The present invention also provides a flow zero point correction device, including a pressure sensor, an ultrasonic flow sensor and a circuit module, wherein the ultrasonic flow sensor is fixedly connected to the protective shell and is located on one side of the protective shell, the circuit module is fixedly connected to the support block and is located on one side of the support block, and the controller is electrically connected to the ultrasonic flow sensor and the circuit module respectively.

[0012] A pressure sensor and a flow zero point correction device thereof of the present invention are connected to a host device through the controller. The rotating unit is started to drive the connecting shaft to rotate, and drive the ball valve to rotate in the valve body, thereby controlling the flow of water. At the same time, the electric push rod is started to drive the block to enter the slot, limit the limit plate, and make the connecting shaft unable to rotate. The water flow is detected by the detection unit. Through the above-mentioned structural setting, when the user is in arrears, the ball valve is remotely controlled to be switched on and off, thereby meeting the customer's requirements for leakage rate control and anti-disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0014] Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the present invention.

[0015] Figure 2It is an overall cross-sectional view of the first embodiment of the present invention.

[0016] Figure 3 The present invention Figure 2 Enlarged view of the local structure at point B.

[0017] Figure 4 The present invention Figure 2 AA line section view.

[0018] Figure 5 The present invention Figure 4 Enlarged view of the local structure at location C.

[0019] Figure 6 It is a schematic diagram of the overall structure of the second embodiment of the present invention.

[0020] Figure 7 It is an overall cross-sectional view of a second embodiment of the present invention.

[0021] Figure 8 The present invention Figure 7 DD line cross-sectional view.

[0022] Fig. 9 The present invention Figure 8 Enlarged view of the local structure at E.

[0023] Fig.10 It is a schematic diagram of the overall structure of the third embodiment of the present invention.

[0024] Fig.11 It is a schematic diagram of the overall structure of the third embodiment of the present invention.

[0025] 101-valve body, 102-pipeline, 103-ball valve, 104-housing, 105-connecting shaft, 106-limiting plate, 107-electric push rod, 108-block, 109-controller, 110-slot, 111-motor, 112-rotating shaft, 113-support block, 114-threaded barrel, 115-threaded rod, 116-protective shell, 117-pressure sensor body, 118-instrument, 119-ultrasonic flow sensor, 120-circuit module, 201-fixing block, 202-plate, 203-bolt, 301-power compartment, 302-battery pack. DETAILED DESCRIPTION

[0026] Embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be construed as limiting the present invention.

[0027] First embodiment:

[0028] See also Figures 1 to 5 ,in Figure 1 is a schematic diagram of the overall structure of the first embodiment of the present invention, Figure 2 is a cross-sectional view of the entire first embodiment of the present invention, Figure 3 The present invention Figure 2 The enlarged view of the local structure at B, Figure 4 The present invention Figure 2 AA line section view, Figure 5 The present invention Figure 4 The present invention provides a pressure sensor, including a valve body 101, a pipeline 102, a ball valve 103, a housing 104, a connecting shaft 105, a rotating unit, a limit plate 106, an electric push rod 107, a clamping block 108, a controller 109 and a detection unit, wherein the limit plate 106 has a plurality of clamping slots 110, the rotating unit includes a motor 111 and a rotating shaft 112, and the detection unit includes a supporting block 113, a threaded barrel 114, a threaded rod 115, a protective shell 116, a pressure sensor body 117 and a meter 118.

[0029] According to this specific embodiment, the controller 109 is connected to the upper device, and the motor 111 drives the rotating shaft 112 to rotate, drives the connecting shaft 105 to rotate, drives the connecting shaft 105 to rotate, drives the ball valve 103 to rotate in the valve body 101, and then controls the flow of water. At the same time, the electric push rod 107 is started, driving the block 108 to enter the slot 110, limits the limit plate 106, and makes the connecting shaft 105 unable to rotate. The water flow passes through the pressure sensor body 117 for detection, and the support block 113 supports the threaded rod 115. The threaded rod 115 is adapted to the threaded barrel 114, and the protective shell 116 and the pressure sensor body 117 are installed in the pipeline 102. The protective shell 116 protects the pressure sensor body 117 to increase its service life. The instrument 118 can display the data of the pressure sensor body 117.

[0030] The valve body 101 is connected to the pipeline 102, the ball valve 103 is installed inside the valve body 101, the housing 104 is fixedly connected to the valve body 101 and is located above the valve body 101, one end of the connecting shaft 105 passes through the valve body 101 and is fixedly connected to the ball valve 103, the other end of the connecting shaft 105 is connected to the rotating unit, the limit plate 106 is fixedly connected to the connecting shaft 105 and is sleeved on the outer wall of the connecting shaft 105, and the electric push The rod 107 is fixedly connected to the shell 104 and is located on the inner top wall of the shell 104. The output end of the electric push rod 107 is fixedly connected to the block 108. The limit plate 106 has a plurality of slots 110. The blocks 108 are mutually adapted with any of the slots 110. The detection unit is arranged on the pipe 102. The controller 109 is installed on the inner side wall of the shell 104. The controller 109 is electrically connected to the rotating unit, the electric push rod 107 and the detection unit respectively. The controller 109 is connected to the upper device, and the rotating unit is started to drive the connecting shaft 105 to rotate, and drive the ball valve 103 to rotate in the valve body 101, thereby controlling the flow of water. At the same time, the electric push rod 107 is started to drive the block 108 to enter the slot 110, limit the limit plate 106, and make the connecting shaft 105 unable to rotate. The water flow is detected by the detection unit. Therefore, when the user is in arrears, the ball valve 103 is remotely controlled to be switched on and off, thereby meeting the customer's requirements for leakage rate control and anti-disassembly.

[0031] Secondly, the motor 111 is fixedly connected to the housing 104 and is located on the inner top wall of the housing 104. The output end of the motor 111 is fixedly connected to one end of the rotating shaft 112, and the other end of the rotating shaft 112 is fixedly connected to the other end of the connecting shaft 105. The controller 109 is electrically connected to the motor 111. The motor 111 drives the rotating shaft 112 to rotate, and drives the connecting shaft 105 to rotate.

[0032] At the same time, the threaded rod 115 and the threaded barrel 114 are adapted to each other, the support block 113 is fixedly connected to the threaded rod 115 and is located above the threaded rod 115, the protective shell 116 is fixedly connected to the threaded rod 115 and is located below the threaded rod 115, the pressure sensor body 117 is fixedly connected to the protective shell 116, and the protective shell 116 is sleeved on the outer wall of the pressure sensor body 117. The support block 113 supports the threaded rod 115, the threaded rod 115 is adapted to the threaded barrel 114, the protective shell 116 and the pressure sensor body 117 are installed in the pipeline 102, and the protective shell 116 protects the pressure sensor body 117 to improve the service life.

[0033] In addition, the meter 118 is fixedly connected to the support block 113 and is located above the support block 113. The meter 118 is electrically connected to the pressure sensor body 117. The controller 109 is electrically connected to the pressure sensor body 117. The meter 118 can display the data of the pressure sensor body 117.

[0034] When a pressure sensor of this embodiment is used, it is connected to the upper device through the controller 109, and the motor 111 drives the rotating shaft 112 to rotate, drives the connecting shaft 105 to rotate, drives the connecting shaft 105 to rotate, drives the ball valve 103 to rotate in the valve body 101, and then controls the flow of water. At the same time, the electric push rod 107 is started, drives the block 108 to enter the slot 110, limits the limit plate 106, and makes the connecting shaft 105 unable to rotate. The water flows through the pressure sensor body 117 for detection. The support block 113 supports the threaded rod 115, and the threaded rod 115 is matched with the threaded barrel 114. The protective shell 116 and the pressure sensor body 117 are installed in the pipeline 102. The protective shell 116 protects the pressure sensor body 117 to increase its service life. The instrument 118 can display the data of the pressure sensor body 117. Through the above-mentioned structural arrangement, when the user is in arrears, the ball valve 103 can be remotely controlled to be switched on and off, thereby meeting the customer's requirements for leakage rate control and anti-disassembly.

[0035] Second embodiment:

[0036] Based on the first embodiment, please refer to Figures 6 to 9 ,in Figure 6 is a schematic diagram of the overall structure of the second embodiment of the present invention, Figure 7 is a cross-sectional view of the entire second embodiment of the present invention, Figure 8 The present invention Figure 7 DD line cross-sectional view, Fig. 9 The present invention Figure 8 The present invention provides a pressure sensor, which also includes a maintenance component, wherein the maintenance component includes a plurality of fixing blocks 201 , a plate body 202 and a plurality of bolts 203 .

[0037] According to this specific embodiment, the plate body 202 and the fixing block 201 are screwed into the bolt 203 to fix the plate body 202 on the fixing block 201, and the housing 104 is closed. The housing 104 can be opened by unscrewing the bolt 203, thereby facilitating maintenance and replacement of equipment parts in the housing 104.

[0038] The maintenance component is disposed on the housing 104. The maintenance component facilitates maintenance and replacement of equipment parts in the housing 104.

[0039] Secondly, the plurality of fixing blocks 201 are fixedly connected to the housing 104 and are sequentially distributed on the inner side wall of the housing 104. The plate body 202 is connected to the plurality of fixing blocks 201 by means of the plurality of bolts 203. The bolts 203 are screwed into the plate body 202 and the fixing blocks 201 to fix the plate body 202 on the fixing blocks 201, thereby closing the housing 104. The housing 104 can be opened by unscrewing the bolts 203.

[0040] When using a pressure sensor of this embodiment, the bolt 203 is screwed into the plate body 202 and the fixing block 201 to fix the plate body 202 on the fixing block 201, and the outer shell 104 is closed. The outer shell 104 can be opened by unscrewing the bolt 203, thereby facilitating maintenance and replacement of equipment parts in the outer shell 104.

[0041] Third embodiment:

[0042] The pressure sensor further includes a power supply assembly, which is disposed on the housing 104. The power supply assembly includes a power supply compartment 301 and a battery pack 302, wherein the power supply compartment 301 is fixedly connected to the housing 104 and is located above the housing 104, and the battery pack 302 is installed inside the power supply compartment 301.

[0043] Based on the second embodiment, please refer to Fig.10 and Fig.11 ,in Fig.10 is a schematic diagram of the overall structure of the third embodiment of the present invention, Fig.11 The present invention provides a pressure sensor, which also includes a power supply assembly, wherein the power supply assembly includes a power supply compartment 301 and a battery pack 302 .

[0044] In this specific embodiment, the power supply compartment 301 carries the battery pack 302. After the battery pack 302 is installed, it provides power to the components of the pressure sensor body 117, thereby providing power to the components without the need for additional power supply.

[0045] The power supply assembly is disposed on the housing 104. The power supply assembly can provide power to the user without the need for an additional power supply.

[0046] Secondly, the power compartment 301 is fixedly connected to the housing 104 and is located above the housing 104, and the battery pack 302 is installed inside the power compartment 301. The power compartment 301 carries the battery pack 302, and after the battery pack 302 is installed, it provides power to the components of the pressure sensor body 117.

[0047] When a pressure sensor of this embodiment is used, the power supply compartment 301 carries the battery pack 302. After the battery pack 302 is installed, it provides power to the components of the pressure sensor body 117, thereby providing power without the need for additional power supply.

[0048] The present invention also provides a flow zero point correction device, including a pressure sensor, an ultrasonic flow sensor 119 and a circuit module 120, wherein the ultrasonic flow sensor 119 is fixedly connected to the protective shell 116 and is located on one side of the protective shell 116, the circuit module 120 is fixedly connected to the support block 113 and is located on one side of the support block 113, and the controller 109 is electrically connected to the ultrasonic flow sensor 119 and the circuit module 120, respectively.

[0049] Among them, the circuit module 120 using ultrasonic technology and embedded software, mastering the technical application of the mother-and-child type / fin type ultrasonic flow sensor 119, can increase the number of reflections of the measured ultrasonic wave, increase the measuring cross-sectional area, improve the measurement accuracy, reduce errors, and adopt a proprietary flow test algorithm in conjunction with the circuit design. When transmitting and receiving signals, the transducer piezoelectric element is in a vibration-free static state, which solves the problem of zero drift in traditional ultrasonic measurement.

[0050] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A pressure sensor, characterized in that: It includes a valve body, a pipeline, a ball valve, a shell, a connecting shaft, a rotating unit, a limit plate, an electric push rod, a block, a controller and a detection unit, the valve body is communicated with the pipeline, the ball valve is installed inside the valve body, the shell is fixedly connected to the valve body and is located above the valve body, one end of the connecting shaft passes through the valve body and is fixedly connected to the ball valve, the other end of the connecting shaft is connected to the rotating unit, the limit plate is fixedly connected to the connecting shaft and is sleeved on the outer wall of the connecting shaft, the electric push rod is fixedly connected to the shell and is located on the inner top wall of the shell, the output end of the electric push rod is fixedly connected to the block, the limit plate has a plurality of slots, and the blocks are mutually adapted to any of the slots, the detection unit is arranged on the pipeline, the controller is installed on the inner side wall of the shell, and the controller is electrically connected to the rotating unit, the electric push rod and the detection unit respectively; The pressure sensor further comprises a maintenance component, wherein the maintenance component is disposed on the housing; The maintenance assembly includes a plurality of fixing blocks, a plate body and a plurality of bolts. The plurality of fixing blocks are fixedly connected to the outer shell and are sequentially distributed on the inner side wall of the outer shell. The plate body is connected to the plurality of fixing blocks through the plurality of bolts.

2. The pressure sensor according to claim 1, characterized in that The rotating unit includes a motor and a rotating shaft. The motor is fixedly connected to the shell and is located on the inner top wall of the shell. The output end of the motor is fixedly connected to one end of the rotating shaft, and the other end of the rotating shaft is fixedly connected to the other end of the connecting shaft. The controller is electrically connected to the motor.

3. The pressure sensor according to claim 2, characterized in that The detection unit includes a support block, a threaded barrel, a threaded rod, a protective shell and a pressure sensor body. The threaded rod and the threaded barrel are adapted to each other. The support block is fixedly connected to the threaded rod and is located above the threaded rod. The protective shell is fixedly connected to the threaded rod and is located below the threaded rod. The pressure sensor body is fixedly connected to the protective shell, and the protective shell is sleeved on the outer wall of the pressure sensor body.

4. The pressure sensor according to claim 3, characterized in that The detection unit further comprises an instrument, which is fixedly connected to the support block and is located above the support block, the instrument is electrically connected to the pressure sensor body, and the controller is electrically connected to the pressure sensor body.

5. A flow zero point correction device, comprising the pressure sensor according to claim 4, characterized in that: It also includes an ultrasonic flow sensor and a circuit module. The ultrasonic flow sensor is fixedly connected to the protective shell and is located on one side of the protective shell. The circuit module is fixedly connected to the support block and is located on one side of the support block. The controller is electrically connected to the ultrasonic flow sensor and the circuit module respectively.

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