CN105424268A - Pressure detection device for fluid in hose - Google Patents
Pressure detection device for fluid in hose Download PDFInfo
- Publication number
- CN105424268A CN105424268A CN201510939884.1A CN201510939884A CN105424268A CN 105424268 A CN105424268 A CN 105424268A CN 201510939884 A CN201510939884 A CN 201510939884A CN 105424268 A CN105424268 A CN 105424268A
- Authority
- CN
- China
- Prior art keywords
- flexible pipe
- fluid pressure
- unit
- force snesor
- fixed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/06—Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
- G01L19/0627—Protection against aggressive medium in general
- G01L19/0645—Protection against aggressive medium in general using isolation membranes, specially adapted for protection
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/14—Housings
- G01L19/147—Details about the mounting of the sensor to support or covering means
Abstract
The invention discloses a pressure detection device for fluid in a hose. The pressure detection device comprises a force transducer, a support and a probe. The probe is directly fixed on the force transducer, the force transducer is fixed on the support, the support is provided with a supporting surface for supporting a bent portion after the hose is deformed and a guiding port formed on the supporting surface, and the probe is arranged in the guiding port. The probe of the pressure detection device is directly fixed on the force transducer, and the force transducer is directly fixed on the support, so other fixed structure is not needed for fixing, and the whole device is simple in structure and lower than the existing structure in machining and assembling difficulty, reduces the manufacturing cost to a great extent and is favorable for batch production and application.
Description
Technical field
The application relates to a kind of fluid pressure test device, especially flexible pipe inner fluid is carried out to the device of pressure detection.
Background technology
In clinical medicine application, often use elastic hose fluid transfer, such as to human body conveying liquid, nutrient solution or blood etc., or from human body extracting liquid, or from fluid transfer between different device.In above application, needing to detect the fluid pressure in elastic hose, for overpressure being limited to the scope set by equipment, if when exceeding setting range, can warning message be provided.
Existing pressure-detecting device generally includes upper support frame, lower support frame, leads power support, force snesor, spring etc., wherein, upper support frame and lower support frame are used for fixing force snesor and lead power support, the power support of leading normally is propped up by force snesor under the action of the spring from below, and guide power support provides one to the power of flexible pipe movement simultaneously.When detecting, flexible pipe is connected to leads on power support, under the extruding up and down of flexible pipe and force snesor, fixedly lead power support, thus makes to lead power support and contact with flexible pipe, detects.This class pressure-detecting device complex structure, processing and assembly difficulty high, cause production cost higher, be unfavorable for the batch production of pressure-detecting device.
Summary of the invention
The application provides a kind of novel flexible pipe fluid pressure pick-up unit.
The pressure-detecting device that the application provides, comprising:
Force snesor;
Support, described force snesor is fixed on support, and described support has the carrying plane being out of shape rear bending part for supports hoseline and the targeting port arranged on the bearing surface;
And probe, described probe is fixed on force snesor, and it is arranged in targeting port, and described probe has the dynamometry face for abutting flexible pipe distortion back plane part.
As the further distortion of described flexible pipe fluid pressure pick-up unit, described dynamometry face flushes with carrying plane.
As the further distortion of described flexible pipe fluid pressure pick-up unit, the difference in height of described dynamometry face and carrying plane is a, and wherein a span is-1mm≤a≤1mm.
As the further distortion of described flexible pipe fluid pressure pick-up unit, also comprise waterproof membrane, described waterproof membrane sealing covers on carrying plane and dynamometry face.
As the further distortion of described flexible pipe fluid pressure pick-up unit, described force snesor is strip, described support is tabular, described carrying plane and targeting port are positioned at one end of plate-shaped carrier, the other end of described plate-shaped carrier is provided with boss to force snesor one side, described boss has mounting hole, and described force snesor is locked on the mounting hole of boss.
As the further distortion of described flexible pipe fluid pressure pick-up unit, described boss has two fixed legs, and described two fixed legs lay respectively at the both sides of mounting hole, described force snesor has two fixed orifices coordinated with fixed leg.
As the further distortion of described flexible pipe fluid pressure pick-up unit, described probe welds with sensor or is adhesively fixed.
As the further distortion of described flexible pipe fluid pressure pick-up unit, described probe and sensor are fixed by screw element.
As the further distortion of described flexible pipe fluid pressure pick-up unit, the cross section of described probe is rectangle, circle or oval.
As the further distortion of described flexible pipe fluid pressure pick-up unit, described pressing plate is arranged at the top in carrying plane and dynamometry face, and carrying plane and form the extrusion chamber being less than hose diameter between dynamometry face and pressing plate.
The beneficial effect of the application is:
The flexible pipe fluid pressure pick-up unit that the application provides, it comprises force snesor, support and probe.Probe is directly fixed on force snesor, and force snesor is fixed on support, and support has the carrying plane being out of shape rear bending part for supports hoseline and the targeting port arranged on the bearing surface, and probe is arranged in targeting port.This pressure-detecting device probe is directly fixed on force snesor, force snesor is directly fixed on support, be fixed without the need to other fixed sturctures, whole apparatus structure is simple, processing and assemble comparatively that existing structure difficulty is lower, reduce the manufacturing cost of device largely, be conducive to production and the application of batch.
Accompanying drawing explanation
Fig. 1 is the decomposing schematic representation of a kind of embodiment of the application's flexible pipe fluid pressure pick-up unit;
Fig. 2 is partial sectional view after assembling embodiment illustrated in fig. 1.
Embodiment
By reference to the accompanying drawings the present invention is described in further detail below by embodiment.The application can realize with multiple different form, is not limited to the embodiment described by the present embodiment.There is provided the object of following embodiment to be convenient to the clearer understanding thoroughly of the application's disclosure, wherein the words of the indicating position such as upper and lower, left and right is only for shown structure position in respective figure.
But those skilled in the art may recognize that one or more detail describes and can be omitted, or can also adopt other method, assembly or material.In some instances, some embodiments do not describe or are not described later in detail.
In addition, technical characteristic described herein, technical scheme can also combine in one or more embodiments in any suitable manner.For a person skilled in the art, the step of the method that easy to understand is relevant with embodiment provided herein or sequence of operation can also change.Therefore, any order in drawings and Examples, only for illustration of purposes, does not imply requirement in a certain order, requires unless expressly stated according to a certain order.
Embodiment one:
The application provides a kind of flexible pipe fluid pressure pick-up unit.
Please refer to Fig. 1 and 2, this pressure-detecting device comprises force snesor 100, support 200 and probe 300.
Force snesor 100 is any one sensor detected for flexible pipe fluid pressure existing.This force snesor 100 is fixed on support 200, and support 200 has the carrying plane 210 being out of shape rear bending part for supports hoseline 500 and the targeting port 220 be arranged on carrying plane 210.Popping one's head in 300 is directly fixed on force snesor 100, without the need to being fixed by other fixed sturctures again.Probe 300 is arranged in targeting port 220, and probe 300 has the dynamometry face 310 being out of shape back plane part for abutting flexible pipe 500.
After flexible pipe 500 is out of shape, flexible pipe 500 internal pressure is conducted on force snesor 100 by the dynamometry face 310 of probe 300, thus records the pressure of flexible pipe 500 inner fluid.
Wherein, the sweep (comprising the intersection of sweep and planar section) after flexible pipe 500 deformation acts on the carrying plane 210 of support 200, thus by the Stress transmit of flexible pipe 500 self to support 200.And dynamometry face 310 only contacts with the planar section after flexible pipe 500 deformation, therefore flexible pipe 500 can greatly be weakened from the impact of experience temperature and material, thus effectively improves the accuracy of detection of flexible pipe 500 internal pressure.Particularly, please refer to Fig. 1, force snesor 100 is strip, and support 200 is tabular.This carrying plane 210 and targeting port 220 are positioned at one end of plate-shaped carrier 200, and the other end of plate-shaped carrier 200 is provided with boss 230 to force snesor 100 one side, this boss 230 has the mounting hole of threaded hole 240 form, force snesor 100 is locked on the threaded hole 240 of boss 230 by screw element 110, by simple fixed sturcture with regard to force sensor 100 fixing on support 200, comparatively prior art structure more simplifies.
Further, in order to strengthen the effect of fixing, boss 230 can be made to have two fixed legs 250, and these two fixed legs 250 lay respectively at the both sides of mounting hole (i.e. threaded hole 240), force snesor 100 have two fixed orifices 120 coordinated with fixed leg 250.When fixing assembling, these two fixed legs 250 stretch in corresponding fixed orifice 120 respectively, to avoid the relative rotation of support 200 and force snesor 100 and to wave.
In prior art, the power support of leading is propped up from below by force snesor, and guide power support provides one to the power of flexible pipe movement.When detecting, flexible pipe is connected to leads on power support, makes to lead power support and contacts with flexible pipe, detect under the extruding up and down of flexible pipe with force snesor.Make the dynamometry face of leading power support protrude from the upper surface (being similar to carrying plane) of upper support frame in this structure, make the planar section of flexible pipe have a less distortion further.Although but the first distortion of being again out of shape relative flexible pipe itself of flexible pipe is less, but also more or less cause certain distortional stress to act on dynamometry face, testing result is impacted.
For above problem, please refer to Fig. 2, the present embodiment probe 300 is directly fixed on force snesor 100, and dynamometry face 310 therefore can be made to flush with carrying plane 210; Or make the difference in height a of dynamometry face 310 and carrying plane 210 in tolerance interval, wherein a span is-1mm≤a≤1mm.
Because dynamometry face 310 flushes with carrying plane 210, or there is the difference in height in tolerance interval, flexible pipe 500 can not be caused to cross shape changeable excessive interference is carried out to dynamometry face 310, thus promote the accuracy detected.
Further, please refer to Fig. 1 and 2, because fluid itself is easily revealed, once fluid trickle to probe 300 surface or enter on force snesor 100, easily cause the accuracy of detection to reduce.And once probe 300 is contaminated, change also cumbersome.Therefore; the present embodiment also comprises waterproof membrane 400; the sealing of this waterproof membrane 400 covers on carrying plane 210 and dynamometry face 310; by the gap sealing between probe 300 and targeting port 220; whole pressure-detecting device is made to make a modularization entirety; Global Macros is formed to pressure-detecting device, avoids fluid to enter in probe 300 surface and force snesor 100.
Wherein, waterproof membrane 400 can adopt any one material that can be used as seal existing to make.
The present embodiment probe 300 is directly fixed on force snesor 100, and its fixed form can select the modes such as bonding, welding, the fixed form such as screw element also can be selected fixing.
And to pop one's head in 300 be rectangle (comprising approximate rectangular shape) with the cross section of waterproof membrane 400 or flexible pipe 500 contact portion, this rectangular length (the long limit in rectangle) and width (minor face in rectangle) ratio are more than or equal to 2, and width is less than or equal to the half of the diameter of flexible pipe 500.As, when flexible pipe 500 diameter is 4mm, on the xsect of probe 300, the size of minor face is less than or equal to 2mm, and under this structure, flexible pipe 500 is out of shape the stress produced and acts on hardly on probe 300.Flexible pipe 500 is elongated tubular construction before being deformed afterwards, the bearing of trend of distortion rear hose is defined as length direction herein; Planar section after distortion is substantially perpendicular to length direction and extends, and targeting port 220 is being defined as A/F perpendicular to the opening size on length direction.The extension size of planar section should be greater than or at least equal the A/F of targeting port, and so at least from the point of interface place after distortion, sweep is supported on carrying plane 210.
On carrying plane 210, the opening shape of targeting port 220 can match with probe 300.In example shown in Fig. 1 and 2, targeting port 220 is rectangle opening.Wherein, when the sweep (comprising the intersection of sweep and planar section) after flexible pipe 500 deformation acts on the carrying plane 210 of support 200, distance between sweep and two intersections of planar section should be more than or equal to the A/F of rectangle targeting port 220, and namely the extension size of planar section should be more than or equal to the A/F of targeting port 220.Under this structural design, the strong point of flexible pipe 500 rides on support 200 completely, the stress that such flexible pipe 500 self-deformation produces, and will guarantee to be transmitted on support 200, reduces self impact of strain on pressure detection.
Wherein, probe 300 can contact the center that flexible pipe 500 is out of shape back plane part, and the center of probe 300 can be aimed at the center of planar section, improves the accuracy of the flexible pipe fluid pressure detected.
Certainly, the cross section of probe 300 also can be other shapes, as circular, oval etc.
Further, this pressure-detecting device also comprises pressing plate (attached not shown), pressing plate is arranged at the top in carrying plane 210 and dynamometry face 310, and carrying plane 210 and form the extrusion chamber being less than flexible pipe 500 diameter between dynamometry face 310 and pressing plate, thus flexible pipe 500 is made to be in crimp state.
Certainly, pressing plate also as the part of this pressure-detecting device, and can not replace the effect of this pressing plate, squeezing tube 500 by a part for other any parts, flexible pipe 500 is out of shape.
This pressure-detecting device structure that the present embodiment provides is simple, and parts are few, processes and assemble comparatively that existing structure difficulty is lower, reduces the manufacturing cost of device largely, is conducive to production and the application of batch.
Above content is in conjunction with concrete embodiment further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, some simple deduction or replace can also be made.
Claims (10)
1. a flexible pipe fluid pressure pick-up unit, is characterized in that, comprising:
Force snesor;
Support, described force snesor is fixed on support, and described support comprises the carrying plane being out of shape rear bending part for supports hoseline and the targeting port arranged on the bearing surface;
And probe, described probe is fixed on force snesor, and it is arranged in targeting port, and described probe has the dynamometry face for abutting flexible pipe distortion back plane part.
2. flexible pipe fluid pressure pick-up unit as claimed in claim 1, it is characterized in that, described dynamometry face flushes with carrying plane.
3. flexible pipe fluid pressure pick-up unit as claimed in claim 1, it is characterized in that, the difference in height of described dynamometry face and carrying plane is a, and wherein a span is-1mm≤a≤1mm.
4. flexible pipe fluid pressure pick-up unit as claimed in claim 1, is characterized in that, also comprise waterproof membrane, and described waterproof membrane sealing covers on carrying plane and dynamometry face.
5. flexible pipe fluid pressure pick-up unit as claimed in claim 1, it is characterized in that, described force snesor is strip, described support is tabular, described carrying plane and targeting port are positioned at one end of plate-shaped carrier, the other end of described plate-shaped carrier is provided with boss to force snesor one side, and described boss has mounting hole, and described force snesor is locked on the mounting hole of boss.
6. flexible pipe fluid pressure pick-up unit as claimed in claim 5, it is characterized in that, described boss has two fixed legs, and described two fixed legs lay respectively at the both sides of mounting hole, described force snesor has two fixed orifices coordinated with fixed leg.
7. the flexible pipe fluid pressure pick-up unit as described in any one of claim 1-6, is characterized in that, described probe is welded with sensor or is adhesively fixed or fixed by screw element.
8. the flexible pipe fluid pressure pick-up unit as described in any one of claim 1-6, is characterized in that, described targeting port is being less than or equal to flexible pipe distortion back plane part extension size in the perpendicular direction perpendicular to the opening size on the length direction of flexible pipe.
9. the flexible pipe fluid pressure pick-up unit as described in any one of claim 1-6, is characterized in that, the cross section of described probe is rectangle, circle or oval.
10. the flexible pipe fluid pressure pick-up unit as described in any one of claim 1-6, it is characterized in that, also comprise pressing plate, described pressing plate is arranged at the top in carrying plane and dynamometry face, and carrying plane and form the extrusion chamber being less than hose diameter between dynamometry face and pressing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510939884.1A CN105424268A (en) | 2015-12-15 | 2015-12-15 | Pressure detection device for fluid in hose |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510939884.1A CN105424268A (en) | 2015-12-15 | 2015-12-15 | Pressure detection device for fluid in hose |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105424268A true CN105424268A (en) | 2016-03-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510939884.1A Pending CN105424268A (en) | 2015-12-15 | 2015-12-15 | Pressure detection device for fluid in hose |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105424268A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105910748A (en) * | 2016-06-28 | 2016-08-31 | 新疆水利水电科学研究院 | Device for measuring pressure of drip irrigation belt |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2496004Y (en) * | 2001-08-24 | 2002-06-19 | 庞景润 | Liquid piezometer |
| CN1453565A (en) * | 2002-04-24 | 2003-11-05 | B·布朗·梅尔松根有限公司 | Pressure sensor |
| WO2006016122A1 (en) * | 2004-08-12 | 2006-02-16 | Single Use Surgical Ltd | Pressure monitor for peristaltic pumps |
| CN203310565U (en) * | 2013-05-15 | 2013-11-27 | 深圳市深科医疗器械技术开发有限公司 | An apparatus used for detecting the pressure of a fluid in a flexible pipe |
| CN104155049A (en) * | 2013-05-15 | 2014-11-19 | 深圳市深科医疗器械技术开发有限公司 | Apparatus for detecting pressure of fluid in a flexible pipe |
| CN205246274U (en) * | 2015-12-15 | 2016-05-18 | 深圳市深科医疗器械技术开发有限公司 | Fluid pressure detection device in hose |
-
2015
- 2015-12-15 CN CN201510939884.1A patent/CN105424268A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2496004Y (en) * | 2001-08-24 | 2002-06-19 | 庞景润 | Liquid piezometer |
| CN1453565A (en) * | 2002-04-24 | 2003-11-05 | B·布朗·梅尔松根有限公司 | Pressure sensor |
| WO2006016122A1 (en) * | 2004-08-12 | 2006-02-16 | Single Use Surgical Ltd | Pressure monitor for peristaltic pumps |
| CN203310565U (en) * | 2013-05-15 | 2013-11-27 | 深圳市深科医疗器械技术开发有限公司 | An apparatus used for detecting the pressure of a fluid in a flexible pipe |
| CN104155049A (en) * | 2013-05-15 | 2014-11-19 | 深圳市深科医疗器械技术开发有限公司 | Apparatus for detecting pressure of fluid in a flexible pipe |
| CN205246274U (en) * | 2015-12-15 | 2016-05-18 | 深圳市深科医疗器械技术开发有限公司 | Fluid pressure detection device in hose |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105910748A (en) * | 2016-06-28 | 2016-08-31 | 新疆水利水电科学研究院 | Device for measuring pressure of drip irrigation belt |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: MINDRAY No. 1203 518000 light production base in Guangdong province Shenzhen Guangming Street South Yu Tong Road No. 2 building, 5 floor Applicant after: Shenzhen MINDRAY Technology Co., Ltd. Address before: The 1 District 518000 in Guangdong province Shenzhen City Xili Nanshan District Baiwang Industrial Park 1 Building 2 floor letter Applicant before: Shengke Medical Instrument Technology Development Co., Ltd., Shenzhen City |
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| CB02 | Change of applicant information | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160323 |
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| RJ01 | Rejection of invention patent application after publication |