CN2550725Y - Liquid flow detector - Google Patents
Liquid flow detector Download PDFInfo
- Publication number
- CN2550725Y CN2550725Y CN 02268227 CN02268227U CN2550725Y CN 2550725 Y CN2550725 Y CN 2550725Y CN 02268227 CN02268227 CN 02268227 CN 02268227 U CN02268227 U CN 02268227U CN 2550725 Y CN2550725 Y CN 2550725Y
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- flow
- sensing
- casing
- piston rod
- inlet
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Abstract
The utility model relates to a liquid flow detection device, belonging to flow detection technology field, which comprises a casing, an inlet and outlet pipeline of detected liquid, a flow sensor and a circuit which transforms the sensing signals to flow and displays the flow. The inlet and outlet pipeline is composed of a cylinder, a piston of the cylinder, a cylinder rod, an oil inlet pipe and an oil outlet pipe. The flow sensor is composed of a bearing support, a sensing axis which can be rotated by the friction of the lateral face of the cylinder rod, a sensing pan with a tooth space, a photoemission joint and a receiving joint which are arranged at the two sides of the sensing pan. A polyurethane friction sleeve is arranged at the central section of the sensing axis, the central section of the friction sleeve is concavely matched with the cylinder rod. A stroke switch is arranged at the lateral face of the end of the cylinder rod. The utility model has the advantages of not only detecting flow, but also detecting whether leakage or not, and whether the oil way is normal or not and other projects, and convenient and flexible usage. The utility model is widely used in the industries of automobile maintenance.
Description
Technical field
The utility model belongs to the flow detection technical field, more particularly relates to the improvement of fluid flow pick-up unit.
Background technology
Existing fluid flow pick-up unit, although it detects principle and measuring accuracy has nothing in common with each other, the detection that it generally can only be used for fluid flow there is no other function.As Roots type flowmeter, suspended body flowmeter or the like all are.But, in industries such as motor vehicle repair, often require the fluid flow pick-up unit both can detect flow, also can detect the situations such as whether normal leakage, oil circuit of having or not.Existing fluid flow pick-up unit can not satisfy this requirement.
The purpose of this utility model just is to overcome above-mentioned shortcoming and defect, provides a kind of and both can detect flow, also can detect to have or not projects such as whether normal leakage, oil circuit, can be used for industries such as automobile inspection, the pick-up unit of fluid flow flexibly easy to use.
Summary of the invention
In order to achieve the above object, the utility model by casing, be installed on the casing inlet and outlet piping crossed for flow of liquid to be checked, be installed in the flow sensor on the inlet and outlet piping and be connected and its transducing signal is converted to the circuit that flow also shown is constituted with flow sensor.Inlet and outlet piping is made up of oil cylinder and piston and piston rod, the oil inlet pipe that is connected to the oil cylinder two ends and flowline.Flow sensor is by being installed in bearing seat on the casing, being installed in the sensing shaft of borrowing the rotation of piston rod side friction-driven in the bearing seat, being installed in the sensing dish that has teeth groove on the sensing shaft, being installed in the photoemission head that is positioned at sensing dish both sides on the casing and receiving head institute and formed.Also available piston rod side is worn the drives structure of band gear on tooth bar, the sensing shaft.
During work, flow of liquid to be checked enters the oil cylinder left side from oil inlet pipe, promotes piston and piston rod and moves to right.Piston rod rubs again and drives sensing shaft together with the sensing disc spins, and the teeth groove on the sensing dish is passed through between photoemission head and the reception head one by one.So the photoelectricity of flow sensor receives head and receives the light pulse that gone out by the photoemission hair one by one successively, and is converted into electric impulse signal.Be flow with this conversion of signals and shown through circuit again.So just can predict the flow of liquid.
The sensing shaft middle part can have the polyurethane friction sleeve, and the middle part of friction sleeve is recessed to coincide with piston rod.This structure can the oversize piston bar and the friction force of sensing shaft, avoids sliding, and makes transmission more reliable, accurate, further improves measuring accuracy.
The side that is positioned at the piston rod end on the casing also is installed with a travel switch.By the automatic back of electrical control, can be used for detecting oil circuit when this structure can make piston rod movement arrive certain one stroke, enlarged its range of application.
Task of the present utility model comes to this and finishes.
The utility model provides a kind of both can detect flow, also can detect the fluid flow pick-up unit that has or not projects such as whether normal leakage, oil circuit.It can be widely used in the automobile inspection industry, also can be applicable in the occasions such as other flow detection.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
System's connection layout when Fig. 2 is used to detect flow for the utility model.
Fig. 3 is the connection layout when being used to detect oil circuit.
Fig. 4 is the connection layout when being used to detect leakage of oil.
Shown in Figure 1, the utility model is converted to flow by casing 6, liquid inlet and outlet piping to be checked, flow sensor and with transducing signal and the circuit that shown constitutes.Inlet and outlet piping is made up of oil cylinder 1 and piston 4 thereof and piston rod 5, oil inlet pipe 2 and flowline 3.Flow sensor by bearing seat 12, can borrow sensing shaft 13, the sensing dish 8 that has teeth groove that piston rod 5 side frictions rotate, be positioned at the photoemission head 9 of sensing dish 8 both sides and receive 10 and form.Sensing shaft 13 middle parts have polyurethane friction sleeve 7, and the middle part of friction sleeve 7 is recessed to coincide with piston rod 5.Piston rod 5 end sides also are installed with travel switch 11.
Shown in Figure 2, when detecting flow or fuel delivery, oil pump 15 goes out the oil pump in the fuel tank 14, and through the relevant parts 16 of automatic gearbox (as valve body and template etc.) input oil cylinder 1 left side that desire detects, piston rod 5 moves to right.So just can predict the flow or the fuel delivery of liquid according to demonstration.
Shown in Figure 3, when detecting oil circuit, on the oil circuit 18 that desire detects, connect a two-position four-way solenoid valve 17, two-position four-way solenoid valve 17 triggers commutation by travel switch 11, and the oil-feed of oil circuit 18 is commutation between the oil inlet pipe 2 of oil cylinder 1 and flowline 3 just.Just normally whether oil circuit as can be known through flow detection.
Shown in Figure 4, when detecting leakage of oil, oil pump 15 is gone into the pressure that regulation is kept in oil cylinder 1 left side with the oil pump in the fuel tank 14.Oil cylinder 1 right side links to each other with the oil circuit of the relevant parts 16 of automatic gearbox that desire detects.As the oil circuit leakage of oil of relevant parts 16, just the piston 4 of oil cylinder 1 and piston rod 5 can move to right, its leakage rate (flow) just can be detected.
Embodiment
1. 1 kinds of fluid flow pick-up units of embodiment.It is converted to flow by casing, liquid inlet and outlet piping to be checked, flow sensor and with transducing signal and the circuit that shown constitutes.Inlet and outlet piping is made up of oil cylinder and piston thereof and piston rod, oil inlet pipe and flowline.Flow sensor is made up of bearing seat, the sensing shaft that can borrow the piston rod side frictional rotation, the sensing dish that has teeth groove, the photoemission head that is positioned at sensing dish both sides and reception head.The sensing shaft middle part can have the polyurethane friction sleeve, and the middle part of friction sleeve is recessed to coincide with piston rod.This is a kind of situation when detecting flow or fuel delivery, as shown in Figure 2.
This is a kind of situation when detecting oil circuit for embodiment 2., as shown in Figure 3.The side of piston rod end also is installed with a travel switch.Except connect outside, all the other structures are with embodiment 1.
This is a kind of situation when detecting leakage of oil for embodiment 3., as shown in Figure 4.Except connect outside, all the other structures are with embodiment 1.
Embodiment 1～3 both can detect flow, also can detect to have or not projects such as leakage, oil circuit be whether normal, easy to use flexibly.Can be widely used in automobile inspection and other need detect in the industry of flow.
Claims (6)
1. fluid flow pick-up unit, it by casing, be installed on the casing inlet and outlet piping crossed for flow of liquid to be checked, be installed in the flow sensor on the inlet and outlet piping and be connected and its transducing signal is converted to the circuit that flow also shown is constituted with flow sensor, it is characterized in that said inlet and outlet piping is made up of oil cylinder and piston and piston rod, the oil inlet pipe that is connected to the oil cylinder two ends and flowline.
2. according to the described fluid flow pick-up unit of claim 1, it is characterized in that said flow sensor is by being installed in bearing seat on the casing, being installed in the sensing shaft of borrowing the rotation of piston rod side friction-driven in the bearing seat, being installed in the sensing dish that has teeth groove on the sensing shaft, being installed in the photoemission head that is positioned at sensing dish both sides on the casing and receiving head institute and formed.
3. according to claim 1 or 2 described fluid flow pick-up units, it is characterized in that said piston rod side has tooth bar, flow sensor is by being installed in bearing seat on the casing, being installed in and having gear in the bearing seat and borrow the sensing shaft of piston rod side rack drives rotation, be installed in the sensing dish that has teeth groove on the sensing shaft, be installed in the photoemission head that is positioned at sensing dish both sides on the casing and receive head institute and formed.
4. according to the described fluid flow pick-up unit of claim 2, it is characterized in that said sensing shaft middle part has the polyurethane friction sleeve, the middle part of friction sleeve is recessed to coincide with piston rod.
5. according to claim 1 or 2 or 4 described fluid flow pick-up units, it is characterized in that the side that is positioned at the piston rod end on the said casing also is installed with a travel switch.
6. according to the described fluid flow pick-up unit of claim 3, it is characterized in that the side that is positioned at the piston rod end on the said casing also is installed with a travel switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02268227 CN2550725Y (en) | 2002-07-03 | 2002-07-03 | Liquid flow detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02268227 CN2550725Y (en) | 2002-07-03 | 2002-07-03 | Liquid flow detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2550725Y true CN2550725Y (en) | 2003-05-14 |
Family
ID=33733688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02268227 Expired - Fee Related CN2550725Y (en) | 2002-07-03 | 2002-07-03 | Liquid flow detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2550725Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106560684A (en) * | 2015-10-06 | 2017-04-12 | 刘闳腾 | Toilet cistern sluicing detection device |
| CN107449470A (en) * | 2017-09-18 | 2017-12-08 | 尤立荣 | The micrometeor sensing device of view-based access control model detection |
| CN107560674A (en) * | 2017-10-19 | 2018-01-09 | 江苏瑞合硕电子科技有限公司 | Apparatus for metering fluids |
| CN108645458A (en) * | 2018-05-14 | 2018-10-12 | 四川职业技术学院 | A kind of high-precision hydraulic oil stream amount detector and its measurement method |
| CN112577554A (en) * | 2020-12-28 | 2021-03-30 | 安徽银汉机电科技有限公司 | High-sensitivity flow detector for liquid or gas |
| CN115077432A (en) * | 2022-05-20 | 2022-09-20 | 浙江大学高端装备研究院 | Oil cylinder stroke detection system, oil leakage detection system and stroke detection method |
| CN116046093A (en) * | 2023-03-06 | 2023-05-02 | 四川职业技术学院 | High-precision hydraulic oil flow detection device and detection method thereof |
-
2002
- 2002-07-03 CN CN 02268227 patent/CN2550725Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106560684A (en) * | 2015-10-06 | 2017-04-12 | 刘闳腾 | Toilet cistern sluicing detection device |
| CN107449470A (en) * | 2017-09-18 | 2017-12-08 | 尤立荣 | The micrometeor sensing device of view-based access control model detection |
| CN107560674A (en) * | 2017-10-19 | 2018-01-09 | 江苏瑞合硕电子科技有限公司 | Apparatus for metering fluids |
| CN108645458A (en) * | 2018-05-14 | 2018-10-12 | 四川职业技术学院 | A kind of high-precision hydraulic oil stream amount detector and its measurement method |
| CN108645458B (en) * | 2018-05-14 | 2021-05-28 | 四川职业技术学院 | High-precision hydraulic oil flow detector and measuring method thereof |
| CN112577554A (en) * | 2020-12-28 | 2021-03-30 | 安徽银汉机电科技有限公司 | High-sensitivity flow detector for liquid or gas |
| CN115077432A (en) * | 2022-05-20 | 2022-09-20 | 浙江大学高端装备研究院 | Oil cylinder stroke detection system, oil leakage detection system and stroke detection method |
| CN116046093A (en) * | 2023-03-06 | 2023-05-02 | 四川职业技术学院 | High-precision hydraulic oil flow detection device and detection method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |