CN201707219U - Detection device for temperature control water faucet - Google Patents

Abstract

The utility model discloses a temperature-controlled faucet product detection device, which comprises a comprehensive testing platform and a life testing platform. The comprehensive testing platform is provided with a first cold and hot water performance testing unit, a torque testing unit and a pressure testing unit. There is a second cold and hot water performance testing unit, and the above-mentioned unit is also connected with the data processing and control unit. The comprehensive test bench of the utility model can carry out test items such as strength test, sealing test, water outlet temperature test, flow test, safety test, temperature stability test, operating torque test and other test items of temperature-controlled faucets according to domestic and foreign standards. On the test bench, test items such as the life durability test of the adjustment mechanism of the temperature control faucet, the life durability test of the circulating alternating water change, and the sensitivity test can be carried out in accordance with domestic and foreign standards. The utility model has the advantages that the device is widely used, can be applied to various test items, and the test is flexible and convenient.

Description

Temperature control faucet product testing device

technical field

The utility model relates to the field of testing temperature-controlled faucets, in particular to a product detection device for temperature-controlled faucets.

Background technique

The temperature control faucet, also known as the constant temperature mixing faucet or the constant temperature control valve, is a new generation of intelligent terminal bathing water equipment introduced from abroad in recent years. The outlet temperature of the mixed water can be automatically controlled by constant temperature, and it has the feature of safety protection when the cold water is out of supply.

In recent years, temperature-controlled faucets have developed extremely rapidly. Foreign products have entered the domestic market. The production and sales of domestic products have begun to take shape, and some products are exported abroad. QB2806-2006 "Temperature-controlled faucets" was published in May 2007 It started to be implemented on the 1st, filling the gaps in domestic standards, mainly including strength test, sealing performance, flow rate, temperature stability, safety, outlet water temperature, life test, operating torque and other indicators.

It is understood that there are comprehensive temperature-controlled nozzle detection devices that meet the above standards at home and abroad. The research and development of domestic temperature-controlled faucet detection equipment is relatively lagging behind. After the implementation of QB2806-2006 "Temperature-controlled Faucet" in May 2007, equipment manufacturers began to develop temperature-controlled faucet detection devices; foreign detection devices only Designed for a standard or some parameters in EN1111:1998, ASSE1016-2005, ASME A112.18.1-2005/CSA B125.1-05, it has great limitations.

Contents of the invention

The purpose of the utility model is to provide a temperature-controlled faucet product detection device, which is a set of temperature-controlled faucet detection device that can meet the test requirements of relevant domestic and foreign standards.

In order to achieve the above object, the technical scheme of the utility model is as follows: the temperature control faucet product detection device includes a comprehensive test bench and a life test bench, and the comprehensive test bench is provided with a first cold and hot water performance test unit, a torque test unit and a test unit. pressure unit, and a second cold and hot water performance test unit is arranged on the life test bench, and the above-mentioned unit is also connected with the data processing and control unit.

The comprehensive test bench includes a first cold and hot water performance test unit, and the first cold and hot water performance test unit includes a first hot water tank and a first cold water tank, both of which are equipped with temperature control devices, The first hot water tank is connected to the first hot water test port through the first hot water pipeline, the first cold water tank is connected to the first cold water test port through the first cold water pipeline, and the first flow test port is passed through the first mixed water The return water pipes are respectively connected to the first hot water tank and the first cold water tank, the first flow test port is provided with a first pressure sensor, a first flow sensor and a first temperature sensor, and the first pressure sensor is connected to the first pressure display , the first flow sensor is connected to the first flow display instrument, the first temperature sensor is connected to the first temperature display instrument; the first cold water test port is provided with a second temperature sensor and a second pressure sensor, and the second pressure sensor is connected to the second pressure sensor The display is connected, the second temperature sensor is connected with the second temperature display; the front end of the first hot water test port is also provided with a third temperature sensor and a third pressure sensor, the third pressure sensor is connected with the third pressure display, and the third The temperature sensor is connected with the third temperature display instrument.

The life test bench includes a second cold and hot water performance test unit, the second cold and hot water performance test unit includes a second hot water tank and a second cold water tank, the second hot water tank and the second cold water tank are equipped with temperature control devices, The second hot water tank is connected to the second hot water test port through the second hot water pipeline, the second cold water tank is connected to the second cold water test port through the second cold water pipeline, and the second cold water tank is also connected to the cold water auxiliary pipeline They are respectively connected to the second hot water test port and the second cold water test port, and the second flow test port is respectively connected to the second hot water tank and the second cold water tank through the second mixed water return pipe, and the second flow test port is provided with The fourth pressure sensor, the fourth flow sensor and the fourth temperature sensor, the fourth pressure sensor is connected to the fourth pressure display, the fourth flow sensor is connected to the fourth flow display, and the fourth temperature sensor is connected to the fourth temperature display ; The second cold water test port is provided with a fifth temperature sensor and a fifth pressure sensor, the fifth pressure sensor is connected with the fifth pressure display instrument, and the second temperature sensor is connected with the fifth temperature display instrument; the front end of the second hot water test port is also There is a sixth temperature sensor and a sixth pressure sensor, the sixth pressure sensor is connected with the sixth pressure display, the sixth temperature sensor is connected with the sixth temperature display, the torque test flexible shaft is connected with the stepper motor, and the stepper motor and Drive connection.

The comprehensive test bench of the utility model can carry out test items such as strength test, sealing test, water outlet temperature test, flow test, safety test, temperature stability test, operating torque test and other test items of the temperature-controlled faucet according to domestic and foreign standards. On the life test bench, according to domestic and foreign standards, the temperature control faucet adjustment mechanism life durability test, cycle alternating water change life durability test, sensitivity test and other test items can be carried out. The utility model has the advantages that the device is widely used, can be applied to various test items, and the test is flexible and convenient.

Description of drawings

Fig. 1 is a system block diagram of the utility model

Fig. 2 is the system flowchart of the first cold and hot water performance testing unit

Figure 3 is a schematic diagram of the structure of the torque test unit

Figure 4 is a schematic diagram of the structure of the pressure test unit

Fig. 5 is the system flowchart of the second cold and hot water performance testing unit

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is described in detail.

The temperature-controlled faucet product testing device includes a comprehensive test bench 1 and a life test bench 2. The comprehensive test bench 1 is equipped with a first cold and hot water performance test unit 3, a torque test unit 4 and a pressure test unit 5, and a life test bench 2. A second cold and hot water performance testing unit 6 is arranged on the top, and the above-mentioned unit is also connected with a data processing and control unit 7 .

The comprehensive test bench includes a first cold and hot water performance test unit 3, and the first cold and hot water performance test unit 3 includes a first hot water tank 101 and a first cold water tank 102, and both the first hot water tank 101 and the first cold water tank 102 are A temperature control device is provided, the first hot water tank 101 is connected to the first hot water test port 105 through the first hot water pipeline, the first cold water tank 102 is connected to the first cold water test port 104 through the first cold water pipeline, The first flow test port 106 is respectively connected with the first hot water tank 101 and the first cold water tank 102 through the first mixed water return pipe, and the first flow test port 106 is provided with a first pressure sensor 111, a first flow sensor 108 and The first temperature sensor 109, the first pressure sensor 111 is connected with the first pressure display instrument 112, the first flow sensor 108 is connected with the first flow display instrument 107, and the first temperature sensor 109 is connected with the first temperature display instrument 110; The cold water test port 104 is provided with a second temperature sensor 113 and a second pressure sensor 114, the second pressure sensor 114 is connected with the second pressure display instrument 115, and the second temperature sensor 113 is connected with the second temperature display instrument 116; the first hot water The front end of the test port 105 is also provided with a third temperature sensor 117 and a third pressure sensor 118, the third pressure sensor 118 is connected with the third pressure display instrument 119, and the third temperature sensor 117 is connected with the third temperature display instrument 120 for testing Outlet water temperature test and temperature stability test.

The tested faucet 121 is installed as shown in the figure, its hot water inlet is connected with the first hot water test port 105 , its cold water inlet is connected with the first cold water test port 104 , and its outlet is connected with the first flow test port 106 .

The first mixed water return pipeline is connected to the metering outlet through a normally open solenoid valve HS and a normally closed collection solenoid valve CJ, a measuring cup 122 is arranged below the metering outlet, and the measuring cup 122 is placed on an electronic balance 123, which has a computer communication interface RS485, the test data can be sent to the computer. During the test, when the system stops the cold water supply, it closes the normally open solenoid valve HS and opens the normally closed collection solenoid valve CJ, and the system measures and records the water output at this time.

The first mixed water return pipeline is also connected to the flow test mixed water outlet 126 through the second flow sensor 124, and the second flow sensor 124 is connected to the second flow indicator 125 for flow test.

The test cold water temperature control device is mainly composed of PID intelligent temperature controller 103, temperature sensor 127, electric proportional control valve 128, circulating cooling pump 129, water exchange pump 130, heat exchanger 131, chiller 132 and so on. When working, the PID intelligent temperature controller converts the temperature difference between the measured temperature and the set temperature into an analog signal to automatically control the opening of the electric control valve, and the test cold water enters the heat exchanger at a suitable ratio to exchange heat with the low-temperature water provided by the chiller. , Realize the constant temperature control of the test cold water.

The temperature control device of the test hot water is composed of a PID intelligent temperature controller 103, a temperature sensor 127, a heater 133, a thyristor trigger module 134, a heating power adjustment device 136, and a water exchange pump 130. When working, the PID intelligent temperature controller automatically controls the conduction and disconnection of the thyristor trigger module according to the temperature difference between the measured temperature and the set temperature, controls the work of the heater, and realizes the constant temperature control of the test hot water. The liquid level switch 135 is used to control the liquid level of the hot water tank.

For the working conditions that require fast heating in the test, after setting the temperature, the system will automatically turn on the fast heater to heat the hot water in the water tank. If the heating speed cannot meet the requirements, you can adjust the fast heating power adjustment device to meet the requirements. heating time requirements.

Considering that the test project requires hot water cooling and the original cold water temperature is low in winter, the system is equipped with a water exchange pump, which can realize hot water cooling and cold water heating in winter.

A balance pipe 137 is connected between the first hot water tank 101 and the first cold water tank 102, and the first mixed water return pipe is connected to the first hot water tank and the first cold water tank through the balance pipe. The first cold water pipeline (the first hot water pipeline) is provided with a cold water pump 141 (hot water pump 140) and a three-way bypass regulating device. In this embodiment, a solenoid valve 138 and an electric regulating valve 139 are connected in series. The opening of the electric regulating valve makes the pressure of the circuit meet the test requirements. In this way, the three pressure conditions of high, medium and low in the cold and hot water circuits can be pre-adjusted according to the test requirements, and the opening and closing of the solenoid valve can be controlled to meet the relevant test requirements. An electric regulating valve is provided in the mixed water return pipe, and the outlet water flow is controlled by adjusting the opening of the electric regulating valve.

The comprehensive test bench also includes a torque test unit 4, which includes a clamping sleeve 142, the clamping sleeve 142 is connected to the torque output shaft 144 through a flexible connecting shaft 143, and the torque output shaft 144 is connected to the worm gear connecting shaft 146 through a torque sensor 145 Connection, the torque sensor 146 is connected with the torque display 147, the worm gear connecting shaft 146 is connected with the worm gear 148, the worm gear 148 is engaged with the worm screw 149, and the worm screw 149 is connected with the hand wheel 150. The torque loading device adopts a worm gear mechanism, and the rotating worm drives the worm gear to load torque. After loading to the specified torque, it can maintain self-locking. The torque sensor supports forward and reverse rotation, and the range is ±10N.M. The clamping sleeve is connected with the torque output shaft through a flexible transmission shaft, which can be conveniently tested. The control handle of the temperature-controlled faucet is connected with the clamping sleeve 142, and the torque test unit can be used for testing. 151 is a bearing with seat, and 152 is a bearing.

The comprehensive test bench 1 also includes a pressure test unit 5, the pressure test unit 5 includes a water tank 153, the water tank 153 is connected to the input end of the electric pressure test pump 154, the output end of the electric pressure test pump 154 is connected to the pressure test interface 155, and the pressure test The interface 155 is provided with a pressure sensor 156, the pressure sensor 156 is connected to the pressure indicator 157, the output end of the electric pressure test pump 154 is also connected to the water tank through the electric regulating valve 158, and the water return interface 160 is connected to the water tank 153. The faucet to be tested is connected as shown in the figure, and the opening of the electric regulating valve 158 is adjusted to control the pressure of the system during the test for testing. Among the figure, 159 is a water outlet plug, 161 is a tested faucet, 162 is a pressure limiting valve, 163 is a float switch, and 164 is a water filling valve.

The device for comprehensive performance testing of temperature-controlled faucets also includes a life test bench 2, and the life test bench 2 includes a second cold and hot water performance test unit 6, and the second cold and hot water performance test unit 6 includes a second hot water tank 201 and a second hot water tank 201. The second cold water tank 202, the second hot water tank 201 and the second cold water tank 202 are all provided with a temperature control device, the second hot water tank 201 is connected with the second hot water test port 203 through the second hot water pipeline 205, and The second cold water tank 202 is connected to the second cold water test port 204 through the second cold water pipeline 206, and the second cold water tank 201 is also connected to the second hot water test port 203 and the second cold water test port 204 respectively through the cold water auxiliary pipeline 207, The second flow test port 208 is respectively connected to the second hot water tank 201 and the second cold water tank 202 through the second mixed water return pipe 209, and the second flow test port 208 is provided with a fourth pressure sensor 210 and a fourth flow sensor 211 And the fourth temperature sensor 212, the fourth pressure sensor 210 is connected with the fourth pressure display instrument 213, the fourth flow sensor 211 is connected with the fourth flow display instrument 214, and the fourth temperature sensor 212 is connected with the fourth temperature display instrument 215; The second cold water test port 204 is provided with the fifth temperature sensor 216 and the fifth pressure sensor 217, the fifth pressure sensor 217 is connected with the fifth pressure display instrument 218, and the second temperature sensor 216 is connected with the fifth temperature display instrument 219; The front end of the water test port 203 is also provided with a sixth temperature sensor 220 and a sixth pressure sensor 221, the sixth pressure sensor 221 is connected to the sixth pressure display instrument 222, the sixth temperature sensor 220 is connected to the sixth temperature display instrument 223, and the torque test The flexible shaft 224 is connected with a stepping motor 225 , and the stepping motor 225 is connected with a driving device 226 .

A balance pipe 227 is connected between the second hot water tank 201 and the second cold water tank 202 , and the second mixed water return pipe 209 is connected to the second hot water tank 201 and the second cold water tank 202 through the balance pipe 227 . The temperature control devices of the second hot water tank and the second cold water tank are similar to those of the first hot water tank and the first cold water tank, and will not be repeated here.

The second cold water pipeline is provided with a cold water pump 228, a first electromagnetic valve 231 and a first check valve 232 are provided between the cold water pump 228 and the second cold water test port 204, and a hot water pump 229 is provided in the second hot water pipeline. A fourth electromagnetic valve 233 and a fourth one-way valve 234 are arranged between the hot water pump 229 and the second hot water test port 203, and the cold water auxiliary pipeline is provided with a cold water auxiliary pump 230, and the cold water auxiliary pump 230 is connected to the second cold water test port 204. A second solenoid valve 235 and a second one-way valve 236 are provided between them, and a third solenoid valve 237 and a third one-way valve 238 are provided between the cold water auxiliary pipeline 230 and the second hot water test port 203 to adjust the cold water pipe The opening degree of the electric regulating valve 243 in the cold water pipeline and the hot water pipeline makes the pressure of the cold water pipeline and the hot water pipeline meet the test requirements. Adjust the opening of the electric regulating valve 241 in the auxiliary cold water pipeline, and adjust the pressure of the auxiliary cold water pipeline to meet the test requirements. In this way, the inlet pressure of the cold and hot water ends of the two working conditions can be pre-adjusted according to the requirements of the life test of alternating water replacement, and the opening and closing of the solenoid valve can be controlled during the test to meet the relevant test requirements. 242 among the figure is the solenoid valve in the cold water auxiliary pipeline.

The tested faucet 244 is installed as shown in the figure, its hot water inlet is connected with the hot water test port 203, the cold water inlet is connected with the cold water test port 204, the outlet is connected with the flow test port 208, and the faucet control handle is connected with the flexible shaft. 224 connection, using flexible shaft connection, easy to install and use.

The data processing and control unit 7 includes a programmable controller PLC and a computer, which are used for acquisition and processing of measurement data and control of solenoid valves and electric regulating valves. The measurement signal of each sensor (flow rate, pressure, temperature, torque, etc.) These measurement signals are sent to the data processing and control unit, transmitted by the instrument or input into the computer through the PLC acquisition module, and the computer records, stores and prints out the relevant measurement data.

Claims (10)

1. Temperature-controlled faucet product testing device, including a comprehensive test bench and a life test bench, which is characterized in that the first cold and hot water performance test unit, torque test unit and pressure test unit are installed on the comprehensive test bench, and the life test bench is equipped with There is a second cold and hot water performance testing unit, and the above-mentioned unit is also connected with the data processing and control unit. 2. The temperature control faucet product testing device according to claim 1, characterized in that the comprehensive test bench includes a first cold and hot water performance test unit, and the first cold and hot water performance test unit includes a first hot water tank and a first The cold water tank, the first hot water tank and the first cold water tank are all equipped with temperature control devices, the first hot water tank is connected to the first hot water test port through the first hot water pipeline, and the first cold water tank is passed through the first cold water The pipeline is connected to the first cold water test port, and the first flow test port is respectively connected to the first hot water tank and the first cold water tank through the first mixed water return pipe. The first flow test port is provided with a first pressure sensor, a second A flow sensor and a first temperature sensor, the first pressure sensor is connected to the first pressure display, the first flow sensor is connected to the first flow display, the first temperature sensor is connected to the first temperature display; the first cold water test port A second temperature sensor and a second pressure sensor are provided, the second pressure sensor is connected to the second pressure display, and the second temperature sensor is connected to the second temperature display; the front end of the first hot water test port is also provided with a third temperature sensor And the third pressure sensor, the third pressure sensor is connected with the third pressure display instrument, and the third temperature sensor is connected with the third temperature display instrument. 3. The temperature control faucet product detection device according to claim 2, characterized in that a balance pipe is connected between the first hot water tank and the first cold water tank, and the first mixed water return pipe passes through the balance pipe and the first The hot water tank and the first cold water tank are connected. the 4. The temperature control faucet product detection device as claimed in claim 3, characterized in that the first mixed water return pipeline is also connected to the flow test mixed water outlet through the second flow sensor, and the second flow sensor is connected to the second flow indicator connect. 5. The temperature control faucet product detection device as claimed in claim 3, characterized in that the first mixed water return pipe is connected to the metering outlet through a normally open solenoid valve and a normally closed collection solenoid valve, and a measuring cup is arranged below the metering outlet , the measuring cup is placed on the electronic balance. 6. The temperature control faucet product testing device according to claim 2, characterized in that the torque testing unit includes a clamping sleeve, the clamping sleeve is connected to the torque output shaft through a flexible connection shaft, and the torque output shaft is connected to the worm gear through a torque sensor The shaft is connected, the torque sensor is connected with the torque display, the worm gear is connected, the shaft is connected with the worm gear, the worm gear is meshed with the worm, and the worm is connected with the hand wheel. 7. The temperature-controlled faucet product detection device according to claim 1, wherein the pressure test unit includes a water tank, the water tank is connected to the input end of the electric pressure test pump, and the output end of the electric pressure test pump is connected to the pressure test interface, The pressure test interface is provided with a pressure sensor, the pressure sensor is connected to the pressure display, the output end of the electric pressure test pump is also connected to the water tank through the electric regulating valve, and the return water interface is connected to the water tank. 8. The temperature control faucet product testing device as claimed in claim 1, characterized in that the life test bench includes a second cold and hot water performance testing unit, and the second cold and hot water performance testing unit includes a second hot water tank and a second The cold water tank, the second hot water tank and the second cold water tank are all equipped with temperature control devices, the second hot water tank is connected to the second hot water test port through the second hot water pipeline, and the second cold water tank is passed through the second cold water The pipeline is connected to the second cold water test port, and the second cold water tank is also connected to the second hot water test port and the second cold water test port respectively through the cold water auxiliary pipeline, and the second flow test port is respectively connected to the second mixed water return pipe. It is connected with the second hot water tank and the second cold water tank, the second flow test port is provided with a fourth pressure sensor, a fourth flow sensor and a fourth temperature sensor, the fourth pressure sensor is connected with the fourth pressure display, and the fourth The flow sensor is connected to the fourth flow indicator, the fourth temperature sensor is connected to the fourth temperature indicator; the second cold water test port is provided with a fifth temperature sensor and a fifth pressure sensor, and the fifth pressure sensor is connected to the fifth pressure indicator , the second temperature sensor is connected with the fifth temperature display instrument; the front end of the second hot water test port is also provided with a sixth temperature sensor and a sixth pressure sensor, the sixth pressure sensor is connected with the sixth pressure display instrument, and the sixth temperature sensor is connected with the sixth pressure display instrument. The sixth temperature indicator is connected, the torque test flexible shaft is connected with the stepper motor, and the stepper motor is connected with the driving device. 9. The temperature control faucet product detection device as claimed in claim 8, characterized in that a balance pipe is connected between the second hot water tank and the second cold water tank, and the second mixed water return pipe passes through the balance pipe and the first The second hot water tank and the second cold water tank are connected. 10. The temperature-controlled faucet product testing device according to claim 8, characterized in that the second cold water pipeline is provided with a cold water pump, and a first electric regulating valve and a first electric regulating valve are arranged between the cold water pump and the second cold water test port. One-way valve, the second hot water pipeline is equipped with a hot water pump, the fourth electric regulating valve and the fourth one-way valve are installed between the hot water pump and the second hot water test port, the cold water auxiliary pipeline is equipped with a cold water auxiliary pump, A second electric regulating valve and a second one-way valve are set between the cold water auxiliary pump and the second cold water test port, and a third electric regulating valve and a third one-way valve are set between the cold water auxiliary pipeline and the second hot water test port valve. the

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