Device for detecting water outlet effect

Abstract

The utility model discloses a device for detecting a water outlet effect, which comprises a first air pipe and a second air pipe which are arranged in parallel, the air inlet ends of the first air pipe and the second air pipe have the same pressure, the air outlet end of the first air pipe is used for connecting a product to be detected, and the air outlet end of the second air pipe is used for connecting a standard good product; a first air inlet valve and a first switch valve are sequentially arranged on the first air pipe in the airflow direction, and a second air inlet valve and a second switch valve are sequentially arranged on the second air pipe in the airflow direction. One end of the communicating pipe is communicated with a first air pipe located between the first air inlet valve and the first switch valve, and the other end of the communicating pipe is communicated with a second air pipe located between the second air inlet valve and the second switch valve; according to the utility model, the testing precision can be improved, and the water outlet effect of the bathroom product can be well detected.

Description

TECHNICAL FIELD

[0001] The utility model relates to a device for detecting water outlet effect, more specifically, a device for detecting bathroom products through active air release. BACKGROUND

[0002] The existing detection technology for water outlet effect of bathroom products mainly determines whether the water spray has defects or leakage through manual observation or detection of water outlet pressure after water test. SUMMARY

[0003] To solve the above technical problems, the utility model discloses a device for detecting water outlet effect.

[0004] The utility model discloses the following technical scheme to realize:

[0005] A device for detecting water outlet effect, comprising a first gas pipe and a second gas pipe arranged in parallel, the pressure of the gas inlet end of the first gas pipe and the second gas pipe is the same, the gas outlet end of the first gas pipe is used for connecting a product to be tested, and the gas outlet end of the second gas pipe is used for connecting a standard good product; a first inlet valve and a first switch valve are arranged on the first gas pipe in sequence along the direction of air flow, and a second inlet valve and a second switch valve are arranged on the second gas pipe in sequence along the direction of air flow; the device further comprises a communication pipe, one end of the communication pipe is communicated with the first gas pipe between the first inlet valve and the first switch valve, and the other end of the communication pipe is communicated with the second gas pipe between the second inlet valve and the second switch valve; a differential pressure sensor is arranged on the communication pipe.

[0006] In the embodiment of the utility model, the gas inlet pipe is provided with a gas source pressure sensor and an electronic pressure regulating valve, and the length of the first gas pipe and the second gas pipe can be adjusted.

[0007] In the embodiment of the utility model, the gas inlet pipe is provided with a gas source pressure sensor and an electronic pressure regulating valve, and the length of the first gas pipe and the second gas pipe can be adjusted.

[0008] In the embodiment of the utility model, the communication pipe or the first gas pipe and the second gas pipe located at the back side of the communication pipe is provided with a pressure sensor; in the air state, the numerical relationship between the pressure sensor and the gas source pressure sensor can be adjusted by adjusting the length of the first gas pipe and the second gas pipe.

[0009] The device for detecting water outlet effect has the following beneficial effects: 1. Through the active air release and the contrast test mode, the differential pressure (water splash loss) between the product and the standard good product is tested, the small difference of the air release flow of the product and the standard good product is reflected, and then the water outlet effect of the test product is judged. 2. Through the gas storage tank, the large-flow proportional electronic pressure regulating valve and the real-time monitoring of the gas source pressure, it is ensured that there is sufficient air release flow and stability in the air release stability and test stage. 3. The micro-range differential pressure sensor with positive and negative values is adopted, and the test precision is improved. BRIEF DESCRIPTION OF DRAWINGS

[0010] In order to more clearly illustrate the technical scheme of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings described below are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.

[0011] Figure 1 It is a schematic view of the present application. DETAILED DESCRIPTION

[0012] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents the selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application.

[0013] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0014] In addition, the terms "first", "second", "third", "fourth", "fifth", "sixth", "seventh" and "eighth" are used only for descriptive purposes and are not to be construed as indicating or implying relative importance or an indicated number of technical features. Thus, features defined with "first", "second", "third", "fourth", "fifth", "sixth", "seventh" and "eighth" can include one or more of the features explicitly or implicitly. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0015] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0016] In the present application, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include the direct contact of the first and second features, or it can include the contact of the first and second features through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature include the vertical direction of the first feature above and obliquely above the second feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The "lower", "lower" and "lower" of the first feature to the second feature include the vertical direction of the first feature below and obliquely below the second feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0017] Reference drawings Figure 1 A device for detecting the outflow effect, comprising a first air pipe 10 and a second air pipe 20 arranged in parallel, so that the pressure entering the two air pipes is consistent, the first air pipe and the second air pipe are both provided with a same air source for air discharge operation, the air inlet ends of the first air pipe and the second air pipe have the same pressure, the air outlet end of the first air pipe is used for connecting a product A to be detected, and the air outlet end of the second air pipe is used for connecting a standard good product B; the first air pipe is provided with a first air inlet valve 11 and a first on-off valve 12 in sequence along the air flow direction, and the second air pipe is provided with a second air inlet valve 21 and a second on-off valve 22 in sequence along the air flow direction; further comprising a communication pipe 30, one end of the communication pipe is communicated with the first air pipe between the first air inlet valve and the first on-off valve, and the other end of the communication pipe is communicated with the second air pipe between the second air inlet valve and the second on-off valve; the communication pipe is provided with a differential pressure sensor 31, and the differential pressure sensor can detect the pressure difference between the two air pipe ends.

[0018] Preferably, the air inlet pipe 40 is further provided, the air outlet end of the air inlet pipe is connected with the air inlet ends of the first air pipe and the second air pipe, the water inlet end of the air inlet pipe is connected with the air storage tank 50, and the air storage tank is used for storing compressed air.

[0019] Further, the pressure sensor 60 is arranged on the communication pipe or the first air pipe and the second air pipe located at the rear side of the communication pipe; in the air supply state, the numerical relationship between the pressure sensor and the air source pressure sensor can be adjusted by adjusting the lengths of the first air pipe and the second air pipe, so that the pressure loss drop after air release can be known. Meanwhile, an alarm device can be further arranged to remind whether the current state of the device is suitable for detecting the conditions of the to-be-detected product.

[0020] The utility model discloses still another technical feature: a method for detecting water outlet effect, comprising the following steps:

[0021] S10, more standard: by adjusting the lengths of the first air pipe and the second air pipe, then placing standard good products at the air outlet ends of the first air pipe and the second air pipe, simultaneously releasing air to make the differential pressure value ΔP displayed by the differential pressure sensor, the differential pressure value ΔP is used as a differential pressure standard to store for the reference of product detection;

[0022] S20, air charging: the electronic pressure regulating valve is adjusted to set the pressure to P0, the first air inlet valve and the second air inlet valve are opened, and the first switch valve and the second switch valve are closed, so that the electronic pressure regulating valve is kept at the value P0 before detection;

[0023] S30, air release: the standard good products at the air outlet ends of the first air pipe are replaced by to-be-detected products, the first switch valve and the second switch valve are opened, so that the first air pipe and the second air pipe are in the air supply state, then the value P of the differential pressure sensor is read, and the value P is compared with ΔP to judge the water outlet effect of the to-be-detected product.

[0024] Preferably, S21, air release detection, before S30, after S20, the first switch valve and the second switch valve are opened, so that the first air pipe and the second air pipe are in the air supply state, if the pressure (the value displayed by the air source pressure sensor) at the air outlet end of the air storage tank drops below the value P0, at this time, the electronic pressure regulating valve cannot provide normal pressure, the whole device stops working and alarms. In S10, the value of the pressure sensor is P1, by adjusting the lengths of the first air pipe and the second air pipe, the value P1 is one third of the value P0. In S30, the value P is the average value of the values of the differential pressure sensor read for many times.

[0025] The utility model discloses more specifically:

[0026] 1. Adjustment and calibration of the air pipes: Before testing the water spray effect of a product, the length of the two air pipes needs to be adjusted and the good product is calibrated. In the case of simultaneously discharging from the test end and the standard end, the length of the first air pipe and the second air pipe is adjusted so that the pressure measured by the sensor corresponding to the discharging is about 1 / 3 of the set gas pressure, i.e. P1=1 / 3P0. The differential pressure value caused by the slight change of the discharge flow of the test end will reach the maximum value, which is beneficial to improve the testing accuracy. After the length adjustment of the two air pipes is completed, the differential pressure value ΔP of the discharging of the good product of the test end and the good product of the standard end is measured. Note that the two air pipes here are good products. Under normal circumstances, ΔP should be zero, but in fact, due to the zero drift of the differential pressure sensor and the slight difference in structure between the test end and the standard end, the actual value may not be zero. The obtained ΔP is used as the differential pressure standard for calibration and is stored for reference during product testing.

[0027] 2. Inflation: The electronic pressure regulating valve is adjusted to the set inflation pressure P0, the first inlet valve of the test end and the second inlet valve of the standard end are opened, and the first switch valve of the test end and the second switch valve of the standard end are closed, so that the system has a stable set pressure before discharging.

[0028] 3. Discharge stabilization: The electronic pressure regulating valve continues to work at the set inflation pressure, the first inlet valve and the second inlet valve remain open, and the first switch valve and the second switch valve are opened at the same time to discharge the system. The discharge stabilization time is generally within 2-3 seconds, and the two ends of the entire device can enter a stable discharging state. In order to ensure that the system has sufficient stable discharge flow during the pressure stabilization and test discharging stages, a pressure sensor is arranged at the gas source end to monitor the pressure. If the gas source pressure drops below the set inflation and discharge pressure during the discharge stabilization and test discharging stages, the electronic pressure regulating valve cannot provide the set inflation and discharge pressure for the device, and the system will stop the testing process and alarm through the alarm device.

[0029] 4. Discharge test: The electronic voltage method, the first inlet valve and the second inlet valve, and the first switch valve and the second switch valve all maintain the open state during the discharge test stage. The average value P of the differential pressure sensor is read, and the water spray loss pressure drop S of the tested product is obtained by subtracting the differential pressure value stored during the calibration from the average value. When the tested water spray loss pressure drop is positive and greater than the set water spray pressure drop standard, it is judged that the product has weak defects in water discharge effect (such as the following situations: hole blockage, inclined discharge or bifurcation, etc.). When the tested water spray loss pressure drop is negative and less than the water spray leakage standard (which is a negative value), it is judged that the product has leakage defects in water discharge effect (such as the following situations: the water discharge hole is damaged and enlarged or significantly leaks, etc.).

[0030] After the test, the fluctuation range of the differential pressure of the good product test is-50-50Pa, the value of S is in this range, and the product to be tested can be a good product.

[0031] The above description shows and describes the preferred embodiments of the present application, as described above, it should be understood that the present application is not limited to the form disclosed herein, should not be considered as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the application conceived herein by the above teachings or related art or knowledge. The modification and change made by the person skilled in the art without departing from the spirit and scope of the present application shall be within the protection scope of the claims attached to the present application.

Claims

1. A device for detecting the effect of water, characterized in that, The application relates to a gas pressure testing device, which comprises a first gas pipe and a second gas pipe arranged in parallel, the pressure of the air inlet ends of the first gas pipe and the second gas pipe is the same, the air outlet end of the first gas pipe is used for connecting a product to be tested, and the air outlet end of the second gas pipe is used for connecting a standard good product; a first air inlet valve and a first switch valve are arranged on the first gas pipe in sequence along the air flow direction, a second air inlet valve and a second switch valve are arranged on the second gas pipe in sequence along the air flow direction; the device further comprises a communication pipe, one end of the communication pipe is communicated with the first gas pipe between the first air inlet valve and the first switch valve, and the other end of the communication pipe is communicated with the second gas pipe between the second air inlet valve and the second switch valve; a differential pressure sensor is arranged on the communication pipe.

2. A device for detecting the effect of water according to claim 1, characterized in that The device further comprises an air inlet pipe, the air outlet end of the air inlet pipe can be connected with the air inlet ends of the first gas pipe and the second gas pipe, the water inlet end of the air inlet pipe is communicated with a gas storage tank, and the gas storage tank is used for storing compressed air.

3. A device for detecting the effect of water according to claim 2, characterized in that Air source pressure sensors and electronic pressure regulating valves are arranged on the air inlet pipe, and the lengths of the first gas pipe and the second gas pipe can be adjusted.

4. A device for detecting the effect of water according to claim 3, characterized in that Pressure sensors are arranged on the communication pipe or the first gas pipe and the second gas pipe located at the rear side of the communication pipe; in the air supply state, the numerical relation between the pressure sensors and the air source pressure sensors can be adjusted by adjusting the lengths of the first gas pipe and the second gas pipe.

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