CN109323809B - Water leakage detection device of cleaning machine and control method thereof - Google Patents
Water leakage detection device of cleaning machine and control method thereof Download PDFInfo
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- CN109323809B CN109323809B CN201811285261.7A CN201811285261A CN109323809B CN 109323809 B CN109323809 B CN 109323809B CN 201811285261 A CN201811285261 A CN 201811285261A CN 109323809 B CN109323809 B CN 109323809B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/16—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means
Abstract
The application discloses cleaning machine detection device that leaks and control method thereof, cleaning machine detection device that leaks includes base, water storage container, sensing component, ball float subassembly and control unit, and water storage container sets up in the mounting hole of base, and sensing component sets up on water storage container, and the ball float subassembly is fixed on sensing component, and sensing component is connected with the control unit. The application the cleaning machine detection device that leaks has solved the detection problem that leaks of cleaning machine, can feed back to cleaning machine control unit according to the hourglass water condition of cleaning machine in real time, the operation of control cleaning machine can prevent that the cleaning machine from leaking and causing other harm.
Description
Technical Field
The application relates to the field of automatic detection, in particular to a water leakage detection device of a cleaning machine and a control method thereof.
Background
In the AOI mobile phone screen detection industry, a cleaning machine is often used for cleaning the surface of a screen, and foreign matters such as dust on the surface of the screen can be effectively removed through cleaning, so that the success rate of screen surface detection is greatly improved, and therefore, the cleaning machine is one of core devices for mobile phone screen detection.
In the actual use process, water seepage, water leakage and the like sometimes occur due to aging, damage and the like of the sealing component of the cleaning machine. There are also many wires in the production plant, which can cause safety accidents if the bare wires meet water.
If the water leakage is serious, equipment can be shut down, even other related equipment is damaged by water inflow, and the like, so that the water leakage online detection device for the cleaning machine is urgently needed, the water leakage condition of the cleaning machine can be detected online in real time, and the operations of shutting down, water cut-off, alarming and the like of the cleaning machine can be controlled.
Disclosure of Invention
The application provides a cleaning machine detection device that leaks and control method thereof to solve the detection problem that leaks of cleaning machine, can feed back to cleaning machine control unit according to the condition of leaking of cleaning machine in real time, the operation of control cleaning machine can prevent that the cleaning machine from leaking and causing other harm.
In a first aspect, to achieve the above object, the present application provides a water leakage detection device for a cleaning machine, including a base, a water storage container, a sensing assembly and a floating ball assembly;
the first end of the base is open and is matched with the cleaning machine; a base plate is arranged at the second end of the base, a mounting hole is formed in the center of the base plate, and the mounting hole is used for fixing the water storage container;
the first end of the water storage container is open, and the second end of the water storage container is a sealed end; a water inlet is formed in the side surface of the water storage container and is close to the first end of the water storage container; a water outlet is also formed in the side face of the water storage container, the water outlet is arranged on the opposite side of the water inlet, and the water outlet is close to the second end of the water storage container; the area of the water inlet is larger than that of the water outlet;
the sensing assembly is fixed at the first end of the water storage container, is arranged at the same side of the water inlet, and is used for fixing the floating ball assembly and detecting whether the floating ball assembly swings;
the floating ball assembly is fixed on the sensing assembly.
Preferably, the sensor device further comprises a control unit connected with the sensing assembly, the control unit being configured to execute the following program steps:
acquiring level signals sent by a photoelectric correlation induction sensor in a preset sampling time period, wherein the level signals comprise high level signals and low level signals;
calculating the occupation ratio of the high-level signal;
and judging whether to alarm or not according to the ratio of the high-level signal.
Preferably, the first end of the base to the second end of the base are of a gradually contracting slope structure.
Preferably, the sensing assembly comprises a fixing frame and a photoelectric correlation sensing sensor, the fixing frame is fixed at the first end of the water storage container, and the photoelectric correlation sensing sensor is arranged at two ends of the fixing frame.
Preferably, the fixing frame comprises a first bottom plate, a second bottom plate, a first vertical plate, a second vertical plate and a cross beam;
the first bottom plate is connected with the second bottom plate through the cross beam, the first vertical plate is connected with the first bottom plate, the second vertical plate is connected with the second bottom plate, the transmitting end of the photoelectric correlation induction sensor is fixed on the first vertical plate, and the receiving end of the photoelectric correlation induction sensor is fixed on the second bottom plate.
Preferably, the floating ball assembly comprises a floating ball, a connecting rod, a limiting block and a baffle;
the floating ball is connected with one end of the connecting rod, the other end of the connecting rod is connected with the limiting block, the limiting block is fixed on the cross beam, and the other end of the limiting block is connected with the baffle; and the baffle is vertical to a connecting line between the transmitting end and the receiving end of the photoelectric correlation induction sensor.
Preferably, the floating ball is made of a material with density lower than that of water.
Preferably, the swing angle of the floating ball is 60-90 degrees.
In a second aspect, to achieve the above object, the present application provides a method for controlling a water leakage detection device of a cleaning machine, the method including:
acquiring level signals sent by a photoelectric correlation induction sensor in a preset sampling time period, wherein the level signals comprise high level signals and low level signals;
calculating the occupation ratio of the high-level signal;
and judging whether to alarm or not according to the ratio of the high-level signal.
Preferably, the judging whether to alarm according to the duty ratio of the high-level signal includes:
if the occupation ratio of the high-level signal is lower than a first preset occupation ratio, no alarm is given;
if the occupation ratio of the high-level signal is in the range from a first preset occupation ratio to a second preset occupation ratio, alarming;
and if the occupation ratio of the high-level signal is greater than a second preset signal, alarming and stopping the machine.
According to the technical scheme, when the cleaning machine does not leak water or leaks water in a small amount, the floating ball is located at the droop position, the baffle blocks the correlation signal of the photoelectric correlation induction sensor, the photoelectric correlation induction sensor sends a low-level signal, the control unit judges that the cleaning machine is in a water-leakage-free state, and the equipment continues to operate. When the cleaning machine leaks water, the water flows into the water storage container after being gathered by the base, when the water leakage amount is larger than a set value, namely the water inflow amount is larger than or equal to the water outflow amount, the floating ball floats upwards to drive the baffle plate on the floating ball to move, namely no obstacle is blocked, the photoelectric correlation induction sensor sends a high level signal, the control unit sends an alarm signal and controls the water inlet valve of the cleaning machine to be closed, the water inlet of the cleaning machine is stopped, and a maintenance person is informed to maintain. Through the high and low level signals, the control unit can judge the water leakage condition of the equipment, and the aim of online detection is fulfilled.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
In order to more clearly describe the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic perspective view illustrating a water leakage detection device of a cleaning machine according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a base according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a water storage container provided in an embodiment of the present application;
FIG. 4 is a schematic partial enlarged perspective view of a water leakage detection device of a cleaning machine according to an embodiment of the present application
Fig. 5 is a flowchart of a control method of the machine cleaning water leakage detection device according to the embodiment of the present application.
Description of reference numerals:
base 100: a first end 101 of the base, a second end 102 of the base, a substrate 103, and a mounting hole 104;
the water storage container 200: a first end 201 of the water storage container, a second end 202 of the water storage container, a water inlet 203 and a water outlet 204;
the sensing assembly 300 comprises a fixed frame 301, a photoelectric correlation induction sensor 302, a first bottom plate 3011, a second bottom plate 3012, a first vertical plate 3013, a second vertical plate 3014, a cross beam 3015 and a lining plate 3016;
the float ball assembly 400: floating ball 401, connecting rod 402, stopper 403, baffle 404.
Detailed Description
The features and advantages of the present application will become more apparent and appreciated from the following detailed description of the application.
The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "left" and "right" and the like indicate orientations or positional relationships based on operational states of the present application, and are only used 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," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.
Fig. 1 is a schematic perspective view illustrating a water leakage detecting device of a washing machine according to a preferred embodiment, and fig. 2 is a schematic partially enlarged perspective view illustrating the water leakage detecting device of the washing machine according to the preferred embodiment. As shown in fig. 1 and 2, the water leakage detection device of the washing machine includes a base 100, a water storage container 200, a sensing assembly 300, a floating ball assembly 400, and a control unit (not shown);
the first end 101 of the base 100 is open and is adapted to a cleaning machine; a base plate 103 is arranged at the second end 102 of the base 100, a mounting hole 104 is arranged at the center of the base plate 103, and the mounting hole 104 is used for fixing the water storage container 200; the first end 101 of the base to the second end 102 of the base are of a gradually contracting slope structure, the base is installed at the bottom of the cleaning machine, the size of the base covers the water leakage area of the cleaning machine, and the base plays roles in collecting, detecting and protecting.
A first end 201 of the water storage container 200 is open and fixed at the mounting hole of the base plate 103, and a second end 202 of the water storage container 200 is a sealed end; a water inlet 203 is formed in the side surface of the water storage container 200, and the water inlet 203 is close to the first end 201 of the water storage container; the side surface of the water storage container 200 is further provided with a water outlet 204, the water outlet 204 is arranged at the opposite side of the water inlet 203, and the water outlet 204 is close to the second end 202 of the water storage container; the area of the water inlet 203 is larger than that of the water outlet 204.
The water storage container 200 is of a cylindrical cup-shaped structure, a water inlet 203 is formed in the top of the water storage container 200, a water outlet 204 is formed in the bottom of the water storage container 200, and the water inlet 203 and the water outlet 204 are arranged in size through flow calculation.
The sensing assembly 300 is fixed at the first end 201 of the water storage container, is on the same side as the water inlet 203, and is used for fixing the floating ball assembly 400 and detecting whether the floating ball assembly 400 swings.
Specifically, the sensing assembly 300 includes a fixing frame 301 and a photoelectric correlation induction sensor 302. The fixing frame 301 is fixed at the first end 201 of the water storage container, and the photoelectric correlation induction sensor 302 is arranged at two ends of the fixing frame 301.
The fixing frame 301 comprises a first bottom plate 3011, a second bottom plate 3012, a first vertical plate 3013, a second vertical plate 3014 and a cross beam 3015; the first bottom plate 3011 and the second bottom plate 3012 are connected through the cross beam 3015, the first vertical plate 3013 is connected to the first bottom plate 3011, the second vertical plate 3014 is connected to the second bottom plate 3012, an emitting end of the photoelectric correlation induction sensor 302 is fixed on the first vertical plate 3013, and a receiving end of the photoelectric correlation induction sensor 302 is fixed on the second bottom plate 3012. Further, the water storage device can further comprise a lining plate 3016, the lining plate 3016 is fixed to the first end 201 of the water storage container, and the first bottom plate 3011 and the second bottom plate 3012 are fixed to two ends of the lining plate 3016.
One end of the photoelectric correlation induction sensor 302 emits light, the other end receives light, when an obstacle blocks the light, the light signal cannot be transmitted to the opposite surface, and the photoelectric correlation induction sensor 302 judges that the obstacle exists and emits a low-level signal; when no obstacle is blocked, the light signal can be transmitted to the opposite side, and the photoelectric correlation sensor 302 judges that no obstacle exists and sends out a high-level signal. The photoelectric correlation inductive sensor 302 is electrically or wirelessly connected with the control unit, and the photoelectric correlation inductive sensor 302 needs to be waterproof.
The float ball assembly 400 is fixed to the sensing assembly 300. The floating ball assembly 400 comprises a floating ball 401, a connecting rod 402, a limiting block 403 and a baffle 404; the floating ball 401 is connected with one end of the connecting rod 402, the other end of the connecting rod 402 is connected with the limiting block 403, the limiting block 403 is fixed on the cross beam 3015, and the other end of the limiting block 403 is connected with the baffle 404; the baffle 404 is perpendicular to a line between the transmitting end and the receiving end of the photoelectric correlation sensor 302.
The density of the material for manufacturing the floating ball 401 is less than that of water; the swing angle of the floating ball 401 is 60-90 degrees. The floating ball 401 is a hollow sphere structure made of polyethylene or other materials with density less than that of water, so that the floating ball can float on the surface of water.
In addition, the volume of the water storage container 200, the volume of the floating ball 401, and the areas of the water inlet 203 and the water outlet 204 need to be calculated according to the acceptable maximum water leakage amount.
The control unit is connected to the sensor assembly 300 and is configured to perform the following program steps:
acquiring level signals sent by a photoelectric correlation induction sensor in a preset sampling time period, wherein the level signals comprise high level signals and low level signals;
calculating the occupation ratio of the high-level signal;
and judging whether to alarm or not according to the ratio of the high-level signal.
The application the cleaning machine detection device that leaks, when the cleaning machine is water-tight or leak a small amount of water, floater 401 is in flagging position, baffle 404 blocks the correlation signal of photoelectricity correlation inductive sensor 302, and photoelectricity correlation inductive sensor 302 sends low level signal, and the control unit judges that the cleaning machine is the no state that leaks, and equipment continues the operation. When the cleaning machine leaks water, the water flows into the water storage container 200 after being gathered by the base 100, when the water leakage is larger than a set value, namely the water inflow is larger than or equal to the water outflow, the floating ball 401 floats upwards to drive the baffle 404 on the floating ball to move, namely no obstacle is blocked, the photoelectric correlation induction sensor 302 sends a high level signal, the control unit sends an alarm signal, controls the water inlet valve of the cleaning machine to be closed, stops feeding water into the cleaning machine, and informs maintenance personnel. Through the high and low level signals, the control unit can judge the water leakage condition of the equipment, and the aim of online detection is fulfilled.
The application also provides a control method of the water leakage detection device of the cleaning machine, and fig. 5 is a flow diagram of the control method of the water leakage detection device of the cleaning machine according to a preferred embodiment. The method comprises the following steps:
s100: acquiring continuous or discontinuous level signals sent by a photoelectric correlation induction sensor in a preset sampling time period, wherein the level signals comprise high level signals and low level signals;
s200: calculating the occupation ratio of the high-level signal;
s300: and judging whether to alarm or not according to the ratio of the high-level signal.
Preferably, the judging whether to alarm according to the duty ratio of the high-level signal includes:
s310: if the occupation ratio of the high-level signal is lower than a first preset occupation ratio, no alarm is given;
s320: if the occupation ratio of the high-level signal is in the range from a first preset occupation ratio to a second preset occupation ratio, alarming;
s330: and if the occupation ratio of the high-level signal is greater than a second preset occupation ratio, alarming and stopping the machine.
For example, the first preset ratio is 70%, the second preset ratio is 80%, the preset sampling time period is 3 seconds, and the sampling may be continuous sampling or intermittent sampling.
And if the sampling is continuous sampling, acquiring an optical signal every 0.1s by the photoelectric correlation induction sensor, converting the optical signal into a level signal value, sending the level signal value to the control unit, counting the number of high-level signals, the number of low-level signals and the total level signal number acquired in a sampling time period by the control unit, calculating the ratio of the high-level signals, and if the ratio of the high-level signals is lower than 70%, determining that the cleaning machine has no water leakage, and continuously operating the cleaning machine. If the high level signal accounts for 70% -80%, it is determined that although the washing machine leaks water, the water leakage amount is not large, and only an alarm is given. And if the high-level signal accounts for more than 80%, determining that the water leakage of the cleaning machine occurs, alarming, controlling the water inlet valve of the cleaning machine to be closed, stopping water inlet to the cleaning machine, and informing a maintainer of maintenance.
And if the sampling is interrupted, the photoelectric correlation induction sensor collects optical signals every 1s, then converts the optical signals into level signal values and sends the level signal values to the control unit, the control unit counts the number of high-level signals, the number of low-level signals and the total level signal number which are acquired in a sampling time period, the duty ratio of the high-level signals is obtained through calculation, and whether the cleaning machine leaks water is judged.
The application provides a cleaning machine detection device that leaks and control method thereof has solved the detection problem that leaks of cleaning machine, can feed back to cleaning machine control unit in real time according to the condition of leaking of cleaning machine, and the operation of control cleaning machine can prevent that the cleaning machine from leaking and causing other harm.
The invention has been described in detail with reference to specific embodiments and illustrative examples, but the description is not intended to be construed in a limiting sense. Those skilled in the art will appreciate that various equivalent substitutions, modifications or improvements may be made to the technical solution of the present invention and its embodiments without departing from the spirit and scope of the present invention, which fall within the scope of the present invention. The scope of the invention is defined by the appended claims.
Claims (7)
1. The water leakage detection device of the cleaning machine is characterized by comprising a base (100), a water storage container (200), a sensing assembly (300) and a floating ball assembly (400);
the first end (101) of the base (100) is open and is matched with a cleaning machine; a base plate (103) is arranged at the second end (102) of the base (100), a mounting hole (104) is formed in the center of the base plate (103), and the mounting hole (104) is used for fixing the water storage container (200);
a first end (201) of the water storage container (200) is open, and a second end (202) of the water storage container (200) is a sealed end; a water inlet (203) is formed in the side surface of the water storage container (200), and the water inlet (203) is close to the first end (201) of the water storage container; a water outlet (204) is further formed in the side face of the water storage container (200), the water outlet (204) is formed in the opposite side of the water inlet (203), and the water outlet (204) is close to the second end (202) of the water storage container; the area of the water inlet (203) is larger than that of the water outlet (204);
the sensing assembly (300) is fixed at the first end (201) of the water storage container, is arranged at the same side as the water inlet (203), and is used for fixing the floating ball assembly (400) and detecting whether the floating ball assembly (400) swings;
the floating ball assembly (400) is fixed on the sensing assembly (300);
the sensing assembly (300) comprises a fixed frame (301) and photoelectric correlation sensing sensors (302), the fixed frame (301) is fixed at the first end (201) of the water storage container, and the photoelectric correlation sensing sensors (302) are arranged at two ends of the fixed frame (301);
the floating ball assembly (400) comprises a floating ball (401), a connecting rod (402), a limiting block (403) and a baffle (404);
the floating ball (401) is connected with one end of the connecting rod (402), the other end of the connecting rod (402) is connected with the limiting block (403), the limiting block (403) is fixed on the cross beam (3015), and the other end of the limiting block (403) is connected with the baffle (404); the baffle (404) is vertical to a connecting line between the transmitting end and the receiving end of the photoelectric correlation induction sensor (302);
the water leakage detection device of the cleaning machine further comprises a control unit, wherein the control unit is connected with the sensing assembly (300), and is configured to execute the following program steps:
acquiring level signal values in a preset sampling time period, wherein the level signal values comprise a high level value and a low level value;
calculating the ratio of the high level value;
and judging whether to alarm or not according to the ratio of the high level value.
2. The water leakage detection device for washing machine as claimed in claim 1, wherein the first end (101) of said base to the second end (102) of said base is a gradually contracting slope structure.
3. The water leakage detection device of the cleaning machine according to claim 1, wherein the fixing frame (301) comprises a first bottom plate (3011), a second bottom plate (3012), a first vertical plate (3013), a second vertical plate (3014) and a cross beam (3015);
the first bottom plate (3011) is connected with the second bottom plate (3012) through the cross beam (3015), the first vertical plate (3013) is connected with the first bottom plate (3011), the second vertical plate (3014) is connected with the second bottom plate (3012), the emitting end of the photoelectric correlation induction sensor (302) is fixed on the first vertical plate (3013), and the receiving end of the photoelectric correlation induction sensor (302) is fixed on the second bottom plate (3012).
4. The water leakage detection device of the cleaning machine as claimed in claim 1, wherein the floating ball (401) is made of a material having a density lower than that of water.
5. The water leakage detection device of the cleaning machine as claimed in claim 1, wherein the swing angle of the floating ball (401) is 60-90 degrees.
6. A control method of a water leakage detection device of a cleaning machine is characterized by comprising the following steps:
acquiring level signals sent by a photoelectric correlation induction sensor in a preset sampling time period, wherein the level signals comprise high level signals and low level signals;
calculating the occupation ratio of the high-level signal;
and judging whether to alarm or not according to the ratio of the high-level signal.
7. The control method of the water leakage detection device of the cleaning machine according to claim 6, wherein the judging whether to alarm or not according to the percentage of the high level signal comprises:
if the occupation ratio of the high-level signal is lower than a first preset occupation ratio, no alarm is given;
if the occupation ratio of the high-level signal is in the range from a first preset occupation ratio to a second preset occupation ratio, alarming;
and if the occupation ratio of the high-level signal is greater than a second preset occupation ratio, alarming and stopping the machine.
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| CN201811285261.7A CN109323809B (en) | 2018-10-31 | 2018-10-31 | Water leakage detection device of cleaning machine and control method thereof |
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| CN201811285261.7A CN109323809B (en) | 2018-10-31 | 2018-10-31 | Water leakage detection device of cleaning machine and control method thereof |
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| CN109323809B true CN109323809B (en) | 2020-07-31 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5623810A (en) * | 1996-03-29 | 1997-04-29 | Ethicon, Inc. | Method for making sterile suture packages |
| CN2549401Y (en) * | 2002-05-31 | 2003-05-07 | 张斌 | Water tank leakage alarm of solar water heater |
| CN202024091U (en) * | 2011-02-25 | 2011-11-02 | 陈辉 | Novel intelligent control gas leakage preventing device |
| CN102182936A (en) * | 2011-02-25 | 2011-09-14 | 陈辉 | Novel intelligent control coal gas leakproof device |
| CN102525272A (en) * | 2011-12-21 | 2012-07-04 | 莆田市清华园电器发展有限公司 | Water-leakage prevention drinking water dispenser |
| CN202953903U (en) * | 2012-10-29 | 2013-05-29 | 深圳市汇清科技有限公司 | Water leakage protection device of water purifier |
| CN203965101U (en) * | 2014-07-11 | 2014-11-26 | 江苏海鼎电气科技有限公司 | For the leak detection apparatus of profit heat-exchange apparatus |
| CN104570898A (en) * | 2015-01-12 | 2015-04-29 | 云南大红山管道有限公司 | Alarm device for ore pulp leakage |
| CN107159670A (en) * | 2017-07-18 | 2017-09-15 | 无锡市白马机械设备有限公司 | Possesses the bearing cleaning machine of water leakage detecting function |
| CN107727666A (en) * | 2018-01-02 | 2018-02-23 | 奥士康精密电路（惠州）有限公司 | A kind of effectively management and control wiring board AOI misses and repaired bad method |
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