CN207181365U - A kind of new apparatus for testing weeping - Google Patents
A kind of new apparatus for testing weeping Download PDFInfo
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- CN207181365U CN207181365U CN201721218093.0U CN201721218093U CN207181365U CN 207181365 U CN207181365 U CN 207181365U CN 201721218093 U CN201721218093 U CN 201721218093U CN 207181365 U CN207181365 U CN 207181365U
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- box body
- new apparatus
- leakage pipe
- testing weeping
- piezoelectric ceramic
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Abstract
The utility model discloses a kind of new apparatus for testing weeping, including box body and bottom, the box body is fixedly connected with the bottom by screw, the box body is internally provided with leakage pipe, the upper end of the leakage pipe is connected with the inlet of the cartridge upper surface, the lower end of the leakage pipe seals through the through hole blend rubber plug on the bottom, steam vent is offered on the rubber stopper, the inside upper surface of the box body is fixed with control circuit, the leakage pipe is respectively fixed with emitter stage piezoelectric ceramic piece and receiving pole piezoelectric ceramic piece on relative two sides, the emitter stage piezoelectric ceramic piece is connected with the receiving pole piezoelectric ceramic piece with the control circuit.The utility model uses a kind of new apparatus for testing weeping of said structure, the problem of can solve the problem that narrow traditional fluidic leak detector investigative range, low precision, has the advantages of simple in construction, easy to operate.
Description
Technical field
The utility model belongs to apparatus for testing weeping technical field, more particularly to it is a kind of be used to detecting peristaltic pump whether leakage
A kind of new apparatus for testing weeping.
Background technology
Peristaltic pump includes driver, pump head and flexible pipe, and fluid is isolated in pump line, has fast changeable pump line, stream
Body can drive in the wrong direction, can do the features such as operating.Corresponding leakage is set to detect on peristaltic pump using needs during peristaltic pump pump liquid
Device, traditional apparatus for testing weeping are typically more using the detection of conducting method or optical detector technology.Conducting method Detection Techniques refer to
Two electrodes in device be present, when conducting liquid submerges two electrodes, electrical circuit is formed, so as to detect leakage.But lead
Logical method Detection Techniques are not suitable for the non-electrolytic solutions such as pure water, alcohol, therefore, turn on the detection ranges of method Detection Techniques compared with
It is narrow.Chemical detection technique is usually to set two optics, a transmitting terminal, a receiving terminal, when there is liquid in detector
When flowing through, the light quantity that receiving device is incided caused by liquid is to the refraction of light changes, so as to detect depositing for liquid
.But when liquid is suspension, liquid has precipitation when flowing through inside detector, light path can be stopped when precipitating more,
The signal for causing liquid to detect can not release, and cause leakage state can not release or cause to judge by accident.
Utility model content
The purpose of this utility model is to provide a kind of new apparatus for testing weeping, solves traditional fluidic leak detector investigative range
The problem of narrow, low precision.
To achieve the above object, the utility model provides a kind of new apparatus for testing weeping, including box body and bottom, institute
State box body to be fixedly connected by screw with the bottom, the box body is internally provided with leakage pipe, the upper end of the leakage pipe
It is connected with the inlet of the cartridge upper surface, the lower end of the leakage pipe is close through the through hole blend rubber plug on the bottom
Seal, offer steam vent on the rubber stopper, the inside upper surface of the box body is fixed with control circuit, and the leakage pipe is relative
Two sides on be respectively fixed with emitter stage piezoelectric ceramic piece and receiving pole piezoelectric ceramic piece, the emitter stage piezoelectric ceramic piece with
The receiving pole piezoelectric ceramic piece is connected with the control circuit.
Preferably, the diameter of the steam vent is not more than 1mm.
Preferably, the rubber stopper is arranged on handle, and one end of the handle is connected to the card of the bottom lower surface
In groove, the upper surface of the other end of the handle is provided with skid resistant course.
Preferably, the material of the handle is rubber, and in the lower surface of the handle, setting is fluted, and support chip is by setting
The alignment pin in the handle lower surface is put to be fixed in the groove, the support chip close to one end of the neck with it is described
Handle and the bottom are fixedly connected by screw.
Preferably, the support chip is the aluminium flake that thickness is 0.2-0.5mm.
Preferably, the side bottom of the box body is provided with the opening that can pass through connecting line, is arranged with the opening
Sealing shroud, annular groove is provided with the side of the sealing shroud, the box body and the bottom are fastened in the annular groove.
Preferably, the upper surface both sides of the box body are provided with otic placode, be provided with the otic placode with by detection means phase
The connecting hole of connection.
Preferably, the box body is internally provided with warning device, and the warning device electrically connects with the control circuit
Connect.
Preferably, the tray interior has been filled with retaining element and circuit and the epoxy resin with waterproof action.
Preferably, the leakage pipe is structure as a whole with the inlet, and the shape of cross section of the leakage pipe is oval
Shape, the width of the cross section of the leakage pipe is 2-5mm, length 8-15mm.
The utility model uses the apparatus for testing weeping of said structure, and emitter stage piezoelectricity pottery is set on the side of leakage pipe
Ceramics and receiving pole piezoelectric ceramic piece, emitter stage piezoelectric ceramic piece sends ultrasonic wave in the presence of control circuit, according to liquid
Different voltage signals can be produced from the impedance difference receiving pole piezoelectric ceramic piece of air, for detecting whether there is leakage production
It is raw.Impedance difference is larger when the utility model is propagated using ultrasonic wave in liquids and gases has detected whether the phenomenon of leakage,
The species of liquid is not limited, has widened the scope of application of apparatus for testing weeping.And leakage inspection described in the utility model
Survey device and the bottom of leakage pipe is provided with rubber stopper, pull out the liquid can emptying in rubber stopper leakage pipe, suspension sinks
The probability in shallow lake is low；And if result of detection would not be influenceed with the presence of air gap between suspension, improve the accurate of detection
Rate.
Below by drawings and examples, the technical solution of the utility model is described in further detail.
Brief description of the drawings
Fig. 1 is a kind of cross section structure schematic diagram of new apparatus for testing weeping embodiment of the utility model；
Fig. 2 is a kind of structural representation of new apparatus for testing weeping embodiment of the utility model；
Fig. 3 is a kind of top view of new apparatus for testing weeping embodiment of the utility model；
Fig. 4 is a kind of fundamental diagram of new apparatus for testing weeping embodiment of the utility model；
Fig. 5 is a kind of circuit theory diagrams of new apparatus for testing weeping embodiment of the utility model；
Reference
1st, box body；11st, inlet；12nd, otic placode；13rd, connecting hole；2nd, bottom；21st, through hole；22nd, neck；3rd, handle；31、
Rubber stopper；32nd, steam vent；33rd, skid resistant course；34th, alignment pin；4th, support chip；5th, leakage pipe；6th, emitter stage piezoelectric ceramic piece；7、
Receiving pole piezoelectric ceramic piece；8th, control circuit；9th, sealing shroud；10th, screw.
Embodiment
Embodiment
Below with reference to accompanying drawing, the utility model will be further described, it is necessary to which explanation, the present embodiment is with this skill
Premised on art scheme, detailed embodiment and specific operating process are given, but the scope of protection of the utility model is not
It is limited to the present embodiment.
Fig. 1 is a kind of cross section structure schematic diagram of new apparatus for testing weeping embodiment of the utility model, and Fig. 2 is this practicality
A kind of structural representation of new new apparatus for testing weeping embodiment, Fig. 3 are a kind of new leakage detection dress of the utility model
Put the top view of embodiment.As Figure 1-3, a kind of new apparatus for testing weeping, including box body 1 and bottom 2, box body 1 and bottom
Lid 2 is fixedly connected by screw 10.Box body 1 is internally provided with leakage pipe 5, and the upper surface of box body 1 is provided with inlet 11, leakage
The upper end of liquid pipe 5 is connected with inlet 11, and leakage pipe 5 and box body 1 are formed in one structure.The shape of cross section of leakage pipe 5 is
Long Circle, the width of the cross section of leakage pipe 5 is 2-5mm, length 8-15mm, and the volume of leakage pipe 5 is fewer, a small amount of when having
Fluid seepage when entering leakage pipe 5, it is possible to the liquid level of certain altitude is formed in leakage pipe 5, so as to timely detect
Going out peristaltic pump, there occurs leakage.Inlet 11 is shaped as the infundibulate that upper end open is big, lower ending opening is small, facilitates liquid to enter
Into leakage pipe 5.Size of the size of the lower ending opening of inlet 11 no more than the cross section of the cavity volume of leakage pipe 5.Box body 1 it is interior
Leakage pipe 5 in portion's is respectively fixed with emitter stage piezoelectric ceramic piece 6 and receiving pole piezoelectric ceramic piece on two relative smooth sides
7, emitter stage piezoelectric ceramic piece 6 is connected with receiving pole piezoelectric ceramic piece 7 with being fixed on the control circuit 8 of the inside upper surface of box body 1.
Warning device is additionally provided with inside box body 1, warning device selects leakage indicator lamp, and leakage indicator lamp electrically connects with control circuit 8
Connect, when having liquid in leakage pipe 5, leakage indicator lamp can be lit and alarm.The side lower of box body 1 is provided with one and opened
Mouthful, sealing shroud 9 is arranged with opening, annular groove is provided with the side of sealing shroud 9, box body 1 and bottom 2 are stuck in annular groove,
The play of sealing shroud 9 can effectively be prevented and come off.The inside of sealing shroud 9 is hollow structure, and connecting line can be by sealing shroud 9
Between penetrate in apparatus for testing weeping and be connected with control circuit 8.
Neck 22 is provided with the lower surface of bottom 2, one end of handle 3 is fixed in neck 22, and the other end of handle 3 is set
Skid resistant course 33 is equipped with, skid resistant course 33 is made up of the non-slipping block of the roundlet cylindricality of projection.Leakage pipe 5 is corresponded on the bottom surface of bottom 2
Position be provided with through hole 21, the position that through hole 21 is corresponded on handle 3 is provided with rubber stopper 31, and the lower end of leakage pipe 5 is from through hole
Passed at 21, the opening of lower end is sealed by rubber stopper 31.The lower ending opening of leakage pipe 5 is closed using rubber stopper 31, can be to prevent
Detection caused by only entering the instant outflow of the liquid in leakage pipe 5 is inaccurate.Connection leakage pipe 5 is offered on rubber stopper 31
With the steam vent 32 of air, steam vent 32 timely can discharge the gas in leakage pipe 5, leakage is smoothly entered leakage
In liquid pipe 5.The size of steam vent 32 is very small, and its diameter is not more than 1mm, effect of the liquid in leakage pipe 5 in surface tension
Under will not be spilt at steam vent 32.
The material of handle 3 is preferably quality of rubber materials, and quality of rubber materials is softer, and foot can be brought it about in the presence of external force
Enough buckling deformations, rubber stopper 31 is set to be extracted at the lower ending opening of leakage pipe 5, so that the liquid outflow in leakage pipe 5, solution
Except leakage state.Because quality of rubber materials is softer, opened up to improve the support force of handle 3 in the lower surface of handle 3 one it is recessed
Groove, flake aluminum of the thickness for 0.2-0.5mm is placed in groove as support chip 4.Alignment pin is provided with the groove of handle 3
34, alignment pin 34 is inserted on support chip 4 in the mounting hole opened up and fixes support chip 4, the rubber stopper 31 on handle 3 is also to support
Piece 4 also functions to certain fixation.Support chip 4 is fixed close to one end of neck 22 by screw 10 and handle 3 and bottom 2 to be connected
It is connected together.
The upper surface both sides of box body 1 are provided with otic placode 12, and connecting hole 13 is provided with otic placode 12.Connecting hole 13 can be passed through
Apparatus for testing weeping is fixed on the place that leakage easily occurs for peristaltic pump.Epoxy resin, ring are filled in the inside of box body 1
Oxygen tree fat can not only play a part of the fixed internal wiring of fixed bin body 1 and element, but also the effect with waterproof.
Fig. 4 is a kind of fundamental diagram of new apparatus for testing weeping embodiment of the utility model.Ultrasonic wave is in different Jie
The impedance propagated in matter is different, and has larger difference, for example propagates in atmosphere and in water transmission, its impedance ratio is
3400:1.Although impedance also has difference between different liquid, one is at least differed compared with the impedance propagated in atmosphere
The individual order of magnitude.As shown in figure 4, ultrasonic wave can occur in the presence of control circuit 8 for emitter stage piezoelectric ceramic piece 6, ultrasonic wave leads to
Cross leakage pipe 5 to be transmitted on the receiving pole piezoelectric ceramic piece 7 on opposite, receiving pole piezoelectric ceramic piece 7 can produce the voltage of same frequency
Signal.When it is air that leakage pipe 5 is interior, because the aerial impedance of ultrasonic wave increases, vibration decay is serious, receiving pole piezoelectricity
Potsherd 7 produces a basic voltage signal.When being filled with a certain amount of liquid in leakage pipe 5, because ultrasonic wave is in liquid
The impedance of middle propagation is smaller, and the vibration signal that receiving pole piezoelectric ceramic piece 7 receives can strengthen, corresponding caused voltage signal
It can strengthen.When voltage signal reaches the certain multiple of basic voltage signal, control circuit 8 will detect leakage generation, and
Leakage signal is exported, leakage indicator lamp is lit.After liquid in leakage pipe 5 is discharged, sky is filled with again in leakage pipe 5
Gas, voltage caused by receiving pole piezoelectric ceramic piece 7 reduce, and the output of control circuit 8 is normal condition, leakage signal relief.
Fig. 5 is a kind of circuit theory diagrams of new apparatus for testing weeping embodiment of the utility model.As shown in figure 5, control
Circuit 8 includes central processing unit, logic processing module and zoom comparison module, the pin TIM1_CH4/CLI_ of central processing unit
CCO/AIN2/TIM1_CH2N/PC4 is connected with logic processing module, and logic processing module is used for the leakage to central processing unit transmitting
Liquid detection signal carries out logical process, and the output end of logic processing module is connected with sensor interface J1, will pass through logical process
The signal crossed is transferred to emitter stage piezoelectric ceramic piece 6, and emitter stage piezoelectric ceramic piece 6 produces ultrasonic activation and passes through leakage pipe 5
The receiving pole piezoelectric ceramic piece 7 on opposite is transmitted to, ultrasonic vibration is changed into electric signal and passes through biography by receiving pole piezoelectric ceramic piece 7
Sensor interface J2 is transferred to zoom comparison module, will be detected by zoom comparison module anti-after output signal is amplified and compared
Feed central processing unit, zoom comparison module is connected with the pin I2C_SDA/TIM1_BKIN/PB5 of central processing unit.Centre
The pin AIN4/TIM2_CH2/ADC_ETR/PD3 and AIN3/TIM2_CH3/PD2 of reason device is connected with leakage indicator lamp, centre
Reason device controls the opening and closing of leakage indicator lamp according to the leakage feedback signal received.The pin I2C_SDA/ of central processing unit
TIM1_BKIN/PB5 is connected with Peripheral Interface J3, and central processing unit connects leakage feedback signal by Peripheral Interface J3 and peripheral hardware
Connect, by feedback signal transmission to external equipment to observe and to store.Central processing unit selects STM8S103F3P6 chips.
A kind of course of work of new apparatus for testing weeping of the utility model is：External power supply passes through connecting line and control electricity
Road 8 is connected, and the central processing unit in control circuit 8 launches a leakage detection signal, and leakage detection signal passes through logical process
Detection signal is transferred to the sensor interface J1 of emitter stage piezoelectric ceramic piece 6, emitter stage piezoelectricity after module progress logical process
Potsherd 6 produces ultrasonic activation in the presence of electric signal, and ultrasonic activation is transmitted to the receiving pole on opposite through leakage pipe 5
Ultrasonic vibration is changed into electric signal and will detected by sensor interface J2 defeated by piezoelectric ceramic piece 7, receiving pole piezoelectric ceramic piece 7
Go out signal and be transferred to zoom comparison module, amplification of the detection output signal by zoom comparison module and relatively after leakage is fed back
Signal is transferred to central processing unit, and central processing unit controls the opening and closing of leakage indicator lamp according to the signal of feedback, and leakage is anti-
Feedback signal is transferred to external equipment to observe and to store through Peripheral Interface J3.
Therefore, the utility model uses a kind of new apparatus for testing weeping of said structure, can solve the problem that traditional leakage inspection
The problem of surveying narrow device investigative range, low precision, there is the advantages of simple in construction, easy to operate.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, can make to be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or electrical connection；Can be directly connected to or indirect by intermediary
Connection, can be the connection of two element internals.For the ordinary skill in the art, on being understood with concrete condition
State concrete meaning of the term in the utility model.
Finally it should be noted that：Above example is only illustrating the technical solution of the utility model rather than it is limited
System, although the utility model is described in detail with reference to preferred embodiment, one of ordinary skill in the art should manage
Solution：Still the technical solution of the utility model can be modified for it or equivalent substitution, and these are changed or equally replaced
Change the spirit and scope that can not also make amended technical scheme depart from technical solutions of the utility model.
Claims (10)
- A kind of 1. new apparatus for testing weeping, it is characterised in that：Including box body (1) and bottom (2), the box body (1) with it is described Bottom (2) is fixedly connected by screw (10), and the box body (1) is internally provided with leakage pipe (5), the leakage pipe (5) Upper end is connected with the inlet (11) of the box body (1) upper surface, and the lower end of the leakage pipe (5) is passed through on the bottom (2) Through hole (21) blend rubber plug (31) sealing, offer steam vent (32) on the rubber stopper (31), the box body (1) it is interior Portion upper surface is fixed with control circuit (8), and the leakage pipe (5) is respectively fixed with emitter stage piezoelectric ceramics on relative two sides Piece (6) and receiving pole piezoelectric ceramic piece (7), the emitter stage piezoelectric ceramic piece (6) and the receiving pole piezoelectric ceramic piece (7) with The control circuit (8) is connected.
- A kind of 2. new apparatus for testing weeping according to claim 1, it is characterised in that：The diameter of the steam vent (32) No more than 1mm.
- A kind of 3. new apparatus for testing weeping according to claim 2, it is characterised in that：The rubber stopper (31) is arranged on On handle (3), one end of the handle (3) is connected in the neck (22) of the bottom (2) lower surface, the handle (3) The upper surface of the other end is provided with skid resistant course (33).
- A kind of 4. new apparatus for testing weeping according to claim 3, it is characterised in that：The material of the handle (3) is Rubber, the lower surface of the handle (3) set fluted, and support chip (4) is by being arranged on the positioning of the handle (3) lower surface Pin (34) is fixed in the groove, and the support chip (4) is close to one end and the handle (3) of the neck (22) and described Bottom (2) is fixedly connected by screw (10).
- A kind of 5. new apparatus for testing weeping according to claim 4, it is characterised in that：The support chip (4) is thickness For 0.2-0.5mm aluminium flake.
- A kind of 6. new apparatus for testing weeping according to claim 1, it is characterised in that：The side bottom of the box body (1) Portion is provided with the opening that can pass through connecting line, is arranged with sealing shroud (9) in the opening, on the side of the sealing shroud (9) Annular groove is provided with, the box body (1) and the bottom (2) are fastened in the annular groove.
- A kind of 7. new apparatus for testing weeping according to claim 1, it is characterised in that：The upper surface of the box body (1) Both sides are provided with otic placode (12), and the connecting hole (13) being connected with by detection means is provided with the otic placode (12).
- A kind of 8. new apparatus for testing weeping according to claim 1, it is characterised in that：The inside of the box body (1) is set Warning device is equipped with, the warning device is electrically connected with the control circuit (8).
- A kind of 9. new apparatus for testing weeping according to claim 1, it is characterised in that：Filled inside the box body (1) There are retaining element and circuit and the epoxy resin with waterproof action.
- A kind of 10. new apparatus for testing weeping according to claim 1, it is characterised in that：The leakage pipe (5) with it is described Inlet (11) is structure as a whole, and the shape of cross section of the leakage pipe (5) is Long Circle, the cross section of the leakage pipe (5) Width be 2-5mm, length 8-15mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721218093.0U CN207181365U (en) | 2017-09-21 | 2017-09-21 | A kind of new apparatus for testing weeping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721218093.0U CN207181365U (en) | 2017-09-21 | 2017-09-21 | A kind of new apparatus for testing weeping |
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| Publication Number | Publication Date |
|---|---|
| CN207181365U true CN207181365U (en) | 2018-04-03 |
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| CN201721218093.0U Active CN207181365U (en) | 2017-09-21 | 2017-09-21 | A kind of new apparatus for testing weeping |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107490622A (en) * | 2017-09-21 | 2017-12-19 | 保定芯之恒流泵有限公司 | A kind of new apparatus for testing weeping |
-
2017
- 2017-09-21 CN CN201721218093.0U patent/CN207181365U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107490622A (en) * | 2017-09-21 | 2017-12-19 | 保定芯之恒流泵有限公司 | A kind of new apparatus for testing weeping |
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