CN216815828U

CN216815828U - High-sensitivity piezoelectric sensing device

Info

Publication number: CN216815828U
Application number: CN202123424166.0U
Authority: CN
Inventors: 刘飞; 黄金钊
Original assignee: Shanghai Yinshuo Testing Technology Co ltd
Current assignee: Shanghai Yinshuo Testing Technology Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-06-24
Anticipated expiration: 2031-12-31

Abstract

The utility model discloses a high-sensitivity piezoelectric sensing device, and relates to the technical field of detection equipment. Comprises a connecting pipe, the upper surface of the connecting pipe is fixedly connected with a mounting pipe, the surface of the mounting pipe is provided with a valve, the surface of the mounting pipe and the upper side of the valve are fixedly connected with a buffering and pressure relief mechanism, the upper end of the mounting pipe is connected with a base, the upper surface of the base is provided with a sealing gasket, the upper surface of the sealing gasket is provided with a piezoelectric sensor, a protective shell is arranged on the upper surface of the base and positioned outside the sealing gasket, a controller is arranged on the surface of the protective shell, the valve is arranged on the surface of the mounting pipe, so that the later-stage maintenance is convenient, the detection device can be protected by arranging the buffering and pressure-releasing mechanism, the water supply pipe network is protected, and by arranging the piezoelectric sensor and the controller, therefore, the purposes of measuring the pressure of the pipe network and operating equipment such as a water pump in the pipe network in a linkage manner are achieved.

Description

High-sensitivity piezoelectric sensing device

Technical Field

The utility model relates to the technical field of detection equipment, in particular to a high-sensitivity piezoelectric sensing device.

Background

The detection equipment has a great variety, and the detection equipment that the mill commonly used has a lot of, including measuring equipment slide caliper rule, balance, dotter etc. in addition also has quality testing analytical instrument, and material quality testing, packing check out test set etc. are common check out test set. In the packaging process, a packaging material detector, a metal detection device, a nonmetal detection device, a nondestructive detection device and the like are common.

Most of the existing pressure detection devices for water supply networks adopt a mode that an elastic element deforms after receiving pressure and then a conversion mechanism in the device transmits the pressure deformation to a mechanical pointer or an electronic element to display pressure data, however, the measurement accuracy range of the elastic element is narrow, the measurement accuracy depends on the rigidity of the elastic element, and the rigidity of the elastic element can generate phenomena of elastic hysteresis, elastic aftereffect, looseness and the like in the long-term use process, so that the measurement accuracy of the detection device is reduced, and the practicability is poor.

SUMMERY OF THE UTILITY MODEL

The utility model provides a high-sensitivity piezoelectric sensing device, and aims to solve the problem that in the prior art, a pressure detection device adopts a mode that an elastic element deforms after being subjected to pressure and then a conversion mechanism in the device transmits the pressure deformation to a mechanical pointer or an electronic element to display pressure data, the measurement accuracy range of the elastic element is narrow, the measurement accuracy depends on the rigidity of the elastic element, and the rigidity of the elastic element has the phenomena of elastic hysteresis, elastic aftereffect, relaxation and the like in the long-term use process, so that the measurement accuracy of the detection device is reduced.

In order to achieve the purpose, the utility model is realized by the following technical scheme: a high-sensitivity piezoelectric sensing device, comprising: the connecting pipe, the both ends fixedly connected with flange of connecting pipe, a plurality of mounting holes have been seted up on the surface of flange and the outside that is located the connecting pipe, the last fixed surface of connecting pipe is connected with the installation pipe, the surface mounting of installation pipe has the valve, the surface of installation pipe just is located the upside fixedly connected with buffering pressure relief mechanism of valve, one side bolt of buffering pressure relief mechanism has the wash-out pipe, the upper end of installation pipe is connected with the base, and installation pipe and base are threaded connection, the upper surface of base is provided with sealed the pad, the last surface mounting who fills up has piezoelectric sensor, the protective housing is installed in the upper surface of base and the outside that is located sealed the pad, the surface mounting of protective housing has the controller, piezoelectric sensor is linear connection with the controller.

The high-sensitivity piezoelectric sensing device comprises a tube shell, a limiting block, a baffle, a telescopic rod, a reset spring, a water outlet and a blind plate, wherein one end of the tube shell is fixedly connected with an installation tube, the limiting block is fixedly connected to the inner surface of the tube shell, the baffle is installed on the inner side of the limiting block, the other side of the baffle is fixedly connected with one end of the telescopic rod, the reset spring is sleeved on the outer surface of the telescopic rod, the water outlet is formed in one side of the surface of the tube shell, the other end of the water outlet is bolted with the water outlet tube, the blind plate is bolted to the other end of the tube shell, and the other end of the telescopic rod is fixedly connected with the blind plate.

As the high-sensitivity piezoelectric sensing device, the sealing gasket is made of elastic sealing materials, the sealing gasket is bonded with the base, and the outer surfaces of the flange and the baffle are both provided with the sealing rings.

As the high-sensitivity piezoelectric sensing device, the piezoelectric sensor comprises a piezoelectric sensing element, a charge amplification module, a signal conditioning circuit module and a transformation impedance module, wherein the piezoelectric sensing element, the charge amplification module, the signal conditioning circuit module and the transformation impedance module are matched with each other for use.

As the high-sensitivity piezoelectric sensing device, the controller comprises a display control module, a signal transmission module, a data processing module, a digital-to-analog conversion module and a data storage module.

As the high-sensitivity piezoelectric sensing device, a sealing ring is arranged between the water drain pipe and the water drain opening, and the other end of the water drain pipe is connected with a sewer pipeline in an indirect connection mode.

The utility model provides a high-sensitivity piezoelectric sensing device. The method has the following beneficial effects:

this high sensitivity piezoelectricity sensing device, through mounting flange in this device, set up the mounting hole, be convenient for this device and water supply pipe connection, set up the valve through the surface at the installation pipe, the maintenance in the later stage of being convenient for, both can protect this detection device through setting up buffering pressure release mechanism, also played the guard action to the water supply network, through setting up piezoelectric sensor and controller, both can carry out the pressure measurement to the pipe network, equipment such as water pump in the operation pipe network that also can link simultaneously.

Drawings

FIG. 1 is a perspective view of the structure of the present invention;

FIG. 2 is an exploded view of a partial structure of the present invention;

FIG. 3 is a cross-sectional view of a portion of the structure of the present invention;

FIG. 4 is a block diagram of a partial structure of the present invention;

FIG. 5 is a block diagram of a partial structure of the present invention.

In the figure: 1. a connecting pipe; 2. a flange; 3. mounting holes; 4. installing a pipe; 5. a valve; 6. a buffer pressure relief mechanism; 601. a pipe shell; 602. a limiting block; 603. a baffle plate; 604. a telescopic rod; 605. a return spring; 606. a water discharge opening; 607. a blind plate; 7. a drain pipe; 8. a base; 9. a gasket; 10. a piezoelectric sensor; 11. a protective shell; 12. and a controller.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is to be understood that the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by persons skilled in the art based on the embodiments in the present application without any creative work belong to the protection scope of the present application.

In the description of the present application, it is to be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; the connection can be mechanical connection or electrical connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those skilled in the art.

Referring to fig. 1-5, the present invention provides a technical solution: a high-sensitivity piezoelectric sensing device comprises a connecting pipe 1, flanges 2 are fixedly connected with two ends of the connecting pipe 1, a plurality of mounting holes 3 are formed in the surface of each flange 2 and positioned on the outer side of the connecting pipe 1, a mounting pipe 4 is fixedly connected with the upper surface of the connecting pipe 1, a valve 5 is mounted on the surface of the mounting pipe 4, a buffering pressure relief mechanism 6 is fixedly connected with the surface of the mounting pipe 4 and positioned on the upper side of the valve 5, a drain pipe 7 is bolted on one side of the buffering pressure relief mechanism 6, a base 8 is connected with the upper end of the mounting pipe 4, the mounting tube 4 is in threaded connection with the base 8, a sealing gasket 9 is arranged on the upper surface of the base 8, a piezoelectric sensor 10 is mounted on the upper surface of the sealing gasket 9, a protective shell 11 is mounted on the upper surface of the base 8 and located on the outer side of the sealing gasket 9, a controller 12 is mounted on the surface of the protective shell 11, and the piezoelectric sensor 10 is in linear connection with the controller 12.

In the embodiment of the utility model, the installation of the flange 2 and the installation of the hole 3 is convenient for the connection of the device and a water supply pipeline, the valve 5 is arranged on the surface of the installation pipe 4, the later-stage maintenance is convenient, the detection device can be protected by arranging the buffering and pressure-releasing mechanism 6, the water supply pipeline network is also protected, the pressure of the pipeline network can be measured by arranging the piezoelectric sensor 10 and the controller 12, and meanwhile, equipment such as a water pump in the pipeline network can be operated in a linkage manner.

Specifically, buffering pressure release mechanism 6 includes tube 601, stopper 602, baffle 603, telescopic link 604, reset spring 605, drain opening 606 and blind plate 607, the one end and the installation pipe 4 fixed connection of tube 601, stopper 602 fixed connection is at the internal surface of tube 601, the inboard at stopper 602 is installed to baffle 603, the one end fixed connection of one side and telescopic link 604 in addition of baffle 603, reset spring 605 cover is established at the surface of telescopic link 604, drain opening 606 is seted up in surface one side of tube 601, the other end and the drain pipe 7 bolt of drain opening 606, blind plate 607 bolt is at the other end of tube 601, and the other end and the blind plate 607 fixed connection of telescopic link 604.

In the specific embodiment of the utility model, the buffer pressure relief mechanism 6 is arranged, so that the damage to a device caused by sudden fluctuation of water pressure in a pipe network is prevented, and when the pressure in the pipe network is overlarge, the pipe network can be drained and relieved, and the pipe network is protected.

Specifically, the sealing gasket 9 is an elastic sealing material, the sealing gasket 9 is bonded with the base 8, and sealing rings are arranged on the outer surfaces of the flange 2 and the baffle 603.

In the specific embodiment of the utility model, by arranging the sealing gasket 9, water flow can be prevented from permeating the protection component, and meanwhile, the pressure of a pipe network can be effectively transmitted, so that the measurement precision of the device is ensured.

Specifically, the piezoelectric sensor 10 includes a piezoelectric sensing element, a charge amplifying module, a signal conditioning circuit module, and a transformation impedance module, and the piezoelectric sensing element, the charge amplifying module, the signal conditioning circuit module, and the transformation impedance module are used in cooperation with each other.

In the specific embodiment of the utility model, the pressure of the pipe network is converted into electric quantity to be output through the piezoelectric sensitive element, the charge amplification module, the signal conditioning circuit module and the transformation impedance module.

Specifically, the controller 12 includes a display control module, a signal transmission module, a data processing module, a digital-to-analog conversion module, and a data storage module.

In the specific embodiment of the present invention, the display control module, the signal transmission module, the data processing module, the digital-to-analog conversion module, and the data storage module are used to process and analyze the signals of the piezoelectric sensor 10, and perform linkage operation on other devices in the pipe network.

Specifically, a sealing ring is arranged between the drain pipe 7 and the drain opening 606, and the other end of the drain pipe 7 is connected with a sewer pipe in an indirect connection manner.

In the embodiment of the utility model, the mode of indirect connection is adopted to prevent the reverse water of the sewer pipe network from polluting the water source.

The working principle is as follows: when the device is used, the device is firstly installed in a water supply network through an installation hole 3 on a flange 2, a piezoelectric sensitive element converts the pressure of the pipe network into a charge signal, the charge signal is converted into electric quantity output in direct proportion to the pressure through a charge amplification module, a signal conditioning circuit module and a transformation impedance module, the digital-analog conversion module converts the electric quantity output of a piezoelectric sensor 10 into a digital signal, pressure data is displayed and recorded through a display control module and a data storage module, the data processing module analyzes the pressure data and sends a corresponding control command through an information transmission module to operate other pipe network equipment such as a water pump in a linkage manner to ensure the normal operation of the pipe network, the device can be overhauled and maintained by closing a valve 5, when severe water pressure fluctuation exists in the pipe network, water flow impacts a baffle 603 to drive a telescopic rod 604 and a reset spring 605 to compress, alleviate the impact of water pressure to this device to when lasting pressure boost was too high in the pipe network, telescopic link 604 and reset spring 605 further compress, rivers accessible outlet 606 and outlet conduit 7 discharge pipe network, carry out the step-down to the pipe network.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. A high-sensitivity piezoelectric sensing device, comprising: the connecting pipe (1), both ends fixedly connected with flange (2) of connecting pipe (1), a plurality of mounting holes (3) have been seted up on the surface of flange (2) and the outside that is located connecting pipe (1), the last fixed surface of connecting pipe (1) is connected with installation pipe (4), the surface mounting of installation pipe (4) has valve (5), the surface of installation pipe (4) just is located upside fixedly connected with buffering pressure relief mechanism (6) of valve (5), one side bolt joint of buffering pressure relief mechanism (6) has outlet pipe (7), the upper end of installation pipe (4) is connected with base (8), and installation pipe (4) and base (8) are threaded connection, the upper surface of base (8) is provided with sealed the pad (9), the last surface mounting who seals pad (9) has piezo sensor (10), protective housing (11) are installed to the upper surface of base (8) and the outside that is located sealed pad (9), the surface mounting of protective housing (11) has controller (12), piezoelectric sensor (10) and controller (12) are linear connection.

2. A high-sensitivity piezoelectric sensing apparatus according to claim 1, wherein: the buffering pressure relief mechanism (6) comprises a pipe shell (601), a limiting block (602), a baffle (603), an expansion link (604), a return spring (605), a water discharge opening (606) and a blind plate (607), one end of the pipe shell (601) is fixedly connected with the mounting pipe (4), the limiting block (602) is fixedly connected with the inner surface of the pipe shell (601), the baffle (603) is arranged at the inner side of the limiting block (602), the other side of the baffle (603) is fixedly connected with one end of the telescopic rod (604), the reset spring (605) is sleeved on the outer surface of the telescopic rod (604), the water outlet (606) is arranged on one side of the surface of the pipe shell (601), the other end of the water discharge opening (606) is bolted with the water discharge pipe (7), the blind plate (607) is bolted at the other end of the pipe shell (601), and the other end of the telescopic rod (604) is fixedly connected with the blind plate (607).

3. A high-sensitivity piezoelectric transducer device according to claim 1, wherein: the sealing gasket (9) is elastic sealing material, the sealing gasket (9) is bonded with the base (8), and sealing rings are arranged on the outer surfaces of the flange (2) and the baffle (603).

4. A high-sensitivity piezoelectric transducer device according to claim 1, wherein: the piezoelectric sensor (10) comprises a piezoelectric sensitive element, a charge amplification module, a signal conditioning circuit module and a transformation impedance module, wherein the piezoelectric sensitive element, the charge amplification module, the signal conditioning circuit module and the transformation impedance module are matched with each other for use.

5. A high-sensitivity piezoelectric transducer device according to claim 1, wherein: the controller (12) comprises a display control module, a signal transmission module, a data processing module, a digital-to-analog conversion module and a data storage module.

6. A high-sensitivity piezoelectric transducer device according to claim 1, wherein: a sealing ring is arranged between the drain pipe (7) and the drain opening (606), and the other end of the drain pipe (7) is connected with a sewer pipeline in an indirect connection mode.