Automatic testing device for water making performance of cold and hot water dispenser

Abstract

The utility model discloses an automatic testing device for the water production performance of a cold and hot water dispenser, which belongs to the technical field of water dispensers and comprises a control cabinet, a controller and a controller, the water receiving unit comprises a mounting frame, a thermocouple, a test water receiving tray, a waste water receiving tray, a water receiving container and driving equipment; the height of the mounting rack is adjustable; the thermocouple is positioned on the mounting rack, connected with the control cabinet and used for testing the water outlet temperature of the water outlet of the cold and hot water dispenser; the waste water receiving disc is rotationally positioned below the thermocouple and is used for receiving water which does not participate in the test; the test water pan is positioned on the mounting frame below the waste water pan and is used for receiving water for testing; the driving equipment is positioned on the mounting frame, is respectively connected with the waste water receiving tray and the control cabinet, and is used for driving the waste water receiving tray to rotate to enable the two water receiving trays to alternately receive water; and the water receiving container is communicated with the test water receiving disc and is used for measuring the volume of water. Automatic temperature measurement, water taking and timing during water dispenser water making performance testing are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of water dispensers and relates to an automatic testing device for the water-drinking performance of a hot or cold water dispenser. Background Art

[0002] Hot / cold water production capacity is a key parameter for evaluating the performance of hot and cold water dispensers. According to the test method requirements in GB / T 22090-2008, testers must constantly monitor the water outlet temperature when testing hot and cold water dispensers. When the temperature reaches the required level, water must be quickly added; if it falls below the required level, water addition must be stopped. The entire test process must also be timed. This process is labor-intensive, inefficient, and can also affect test results due to human factors.

[0003] Therefore, it is necessary to propose a device for automatically testing the water performance of a hot and cold drinking water machine. Utility Model Content

[0004] In order to at least solve the above-mentioned problems in the prior art of low efficiency and high labor intensity in testing the performance of hot and cold drinking water machines, and large fluctuations in the accuracy of test results due to manual operation, the present invention provides the following technical solution: an automatic testing device for the performance of hot and cold drinking water machines, the automatic testing device comprising:

[0005] A control cabinet for setting the test type and controlling the operation of the entire device; and

[0006] A water receiving unit, comprising: a mounting frame, a thermocouple, a test water receiving tray, a waste water receiving tray, a water receiving container, and a driving device;

[0007] The mounting frame can be adjusted in height;

[0008] The thermocouple is located on the mounting frame and is connected to the control cabinet signal for testing the water temperature at the outlet of the hot and cold water dispenser;

[0009] The waste water receiving tray is rotatably located below the thermocouple and is used to receive water that is not used in the test;

[0010] The test water receiving tray is located on the mounting frame below the waste water receiving tray and is used to receive water for testing;

[0011] The driving device is located on the mounting frame, connected to the wastewater receiving tray, and connected to the control cabinet signal, and is used to rotate the wastewater receiving tray so that the wastewater receiving tray and the test receiving tray receive water alternately;

[0012] The water receiving container is communicated with the test water receiving tray and is used to measure the volume of water.

[0013] Optionally, in the above automatic test device for the water production performance of the hot and cold water dispenser, the distance between the thermocouple and the hot water outlet and the cold water outlet of the water dispenser is 9 to 11 mm.

[0014] Optionally, in the above automatic test device for the water production performance of the hot and cold water dispenser, the mounting bracket includes: a cross beam, a column, and a base;

[0015] The column is a telescopic rod, and the spaced columns are connected by the cross beam;

[0016] The base is located at the bottom of the column;

[0017] The drive device is mounted on the cross beam;

[0018] The thermocouple is connected to the column through a displacement cross bar;

[0019] The test water receiving tray is located on the column below the thermocouple.

[0020] Optionally, in the above automatic test device for the water production performance of the hot and cold water dispenser, the drive device includes: a stepper motor and a shaft rod;

[0021] The stepper motor is connected to the waste water receiving tray through the shaft rod.

[0022] Optionally, in the above automatic test device for the water production performance of the hot and cold water dispenser, the control cabinet includes: a DC power supply, a touch screen, a controller, a temperature acquisition module, a stepper driver, an ammeter, and a buzzer;

[0023] The DC power supply is electrically connected to the touch screen, the controller, the temperature acquisition module, the stepper driver, and the drive device respectively for power supply;

[0024] The controller is used to receive input information and output control signals;

[0025] The touch screen is connected to the controller for man-machine interaction to set control information;

[0026] The temperature acquisition module is respectively connected to the controller and the thermocouple for transmitting the temperature data of the water outlet of the water dispenser collected by the thermocouple to the controller;

[0027] The stepper driver is connected to the controller and the drive device for controlling the rotation of the drive device;

[0028] The ammeter is connected to the controller for detecting the working current of the water dispenser;

[0029] The buzzer is connected to the controller and is used for prompting operations and alarming for device failures.

[0030] Optionally, in the above-mentioned automatic water production performance testing device for hot and cold water dispensers, the control cabinet further includes: an indicator light and an emergency stop switch;

[0031] The indicator light is connected to the DC power supply and is used for displaying the operating state of the device;

[0032] The emergency stop switch is connected to the DC power supply and is used for urgently shutting down the device.

[0033] Optionally, in the above-mentioned automatic water production performance testing device for hot and cold water dispensers, the touch screen is used for setting the test type, and the test type includes: hot water outlet temperature test, hot water production capacity test, cold water outlet temperature test, and cold water production capacity test.

[0034] Optionally, in the above-mentioned automatic water production performance testing device for hot and cold water dispensers, the thermocouple is located on the displacement cross bar;

[0035] One end of the displacement cross bar is detachably connected to the column through a hoop; or

[0036] A plurality of grooves are formed in the column in the circumferential direction, and one end of the displacement cross bar is inserted into the grooves.

[0037] Optionally, in the above-mentioned automatic water production performance testing device for hot and cold water dispensers, the waste water receiving tray is communicated with the waste water recycling container through a diversion pipe.

[0038] Optionally, in the above-mentioned automatic water production performance testing device for hot and cold water dispensers, the control cabinet is connected to the software of the upper computer, and test information is set through the upper computer and the test results are displayed.

[0039] The beneficial effects brought by the technical solution provided by the embodiment of the present utility model are:

[0040] In this application, specific test types are selected through the control cabinet and the operation control of the entire device is realized. The thermocouple is used to test the outlet water temperature of the hot and cold water dispenser. By driving the device to rotate the waste water receiving tray, the waste water receiving tray and the test receiving tray are alternately used to receive water, realizing automatic temperature testing, automatic water intake, and automatic timing during the water production performance test of the hot and cold water dispenser, solving the problems of low efficiency and high labor intensity in the water production performance test of the existing hot and cold water dispenser, and large fluctuations in the accuracy of the test results with manual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a schematic structural diagram of the control cabinet in an automatic water production performance testing device for a hot and cold water dispenser provided by an embodiment of the present utility model;

[0042] Figure 2 This is a schematic structural diagram of the water receiving unit in an automatic water production performance testing device for a hot and cold water dispenser provided by an embodiment of the present utility model;

[0043] In the figure: 1. Control cabinet; 11. Indicator light; 12. Buzzer; 13. Emergency stop switch; 14. Touch screen; 15. DC power supply; 16. Controller; 17. Temperature acquisition module; 18. Stepper driver; 19. Ammeter; 2. Water receiving unit; 21. Thermocouple; 22. Waste water receiving tray; 23. Test water receiving tray; 24. Stepper motor; 25. Shaft rod; 26. Mounting bracket; 27. Water receiving container; 28. First diversion pipe; 29. Second diversion pipe; 30. Shifting cross bar. Specific embodiments

[0044] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the following will further describe in detail the embodiments of the present utility model with reference to the accompanying drawings.

[0045] In the description of the present utility model, the orientation or positional relationships indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model rather than requiring the present utility model to be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. The terms "connected", "connected to", and "arranged" used in the present utility model should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be directly connected or indirectly connected through an intermediate component; it can be a wired connection, a radio connection, or a wireless communication signal connection. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0046] Please refer to Figure 1-2 , the present utility model provides the following technical solutions: An automatic water production performance testing device for a hot and cold water dispenser, the automatic testing device includes: a control cabinet 1 and a water receiving unit 2. The control cabinet 1 is used to set the test types (specifically including hot water outlet temperature test, hot water production capacity test, cold water outlet temperature test, and cold water production capacity test) and the operation control of the entire device. The number of water receiving units 2 is not less than one, that is, a single water receiving unit 2 can be used, or multiple water receiving units 2 can be tested simultaneously. Refer to Figure 2As shown in the figure, the water receiving unit 2 includes: a mounting bracket 26, a thermocouple 21, a waste water receiving tray 22, a test water receiving tray 23, a water receiving container 27 and a driving device. The height of the mounting bracket 26 can be adjusted. Specifically, the mounting bracket includes: a cross beam, a column and a base. Among them, the column is a telescopic rod, and a telescopic rod commonly used in the art can be adopted. The spaced columns are connected together by a cross beam, and the base is fixedly located at the bottom of the column. By adjusting the height of any one column, the column drives other columns to rise / fall through the cross beam, so as to realize the overall height adjustment of the mounting bracket 26. The thermocouple 21 is located on the mounting bracket 26. Preferably, the thermocouple 21 is connected to the column on the mounting bracket 26 through a displacement cross bar 30. For a relatively high water dispenser (such as a vertical water dispenser), the position of the thermocouple 21 and the water outlet (referring to the height) can be roughly adjusted by adjusting the height of the column first, and then in the horizontal direction, by changing the position of the displacement cross bar 30 on the side wall (circumference) of the column, the position of the thermocouple 21 also changes with the position of the displacement cross bar 30, and finally the thermocouple 21 is located at a certain distance directly below the water outlet of the water dispenser, so that the distance between the thermocouple 21 and the water outlet of the water dispenser is adjusted. The thermocouple 21 is signal-connected to the control cabinet 1, and the thermocouple 21 is used to measure the water outlet temperature of the cold and hot water dispenser (abbreviated as water dispenser). It should be noted that the cold and hot water dispenser has a cold water outlet and a hot water outlet. The waste water receiving tray 22 is rotatably located below the thermocouple 21, and the waste water receiving tray 22 is used to receive the water that does not participate in the test (referring to the water whose instant temperature of the water outlet does not reach the set temperature). The test water receiving tray 23 is located below the waste water receiving tray 22, and at the same time the test water receiving tray 23 is connected to the column in the mounting bracket 26 through a cross bar. The test water receiving tray 23 is used to receive the water that participates in the test (referring to the water whose instant temperature of the water outlet reaches the set temperature). The driving device is located on the cross beam in the mounting bracket 26. The driving device is connected to the waste water receiving tray 22 and is signal-connected to the control cabinet 1. The driving device is used to receive and execute the control instructions issued by the control cabinet 1, and drives the waste water receiving tray 22 to rotate so that the waste water receiving tray 22 and the test water receiving tray 23 alternately receive water. The water receiving container 27 (such as a glass container) is communicated with the test water receiving tray 23 through a second diversion pipe 29. At the same time, scale lines are provided on the water receiving container 27, and the volume of the water outlet can be measured by reading the scale. Debugging work is carried out before the formal test, and the rotation angle of the driving device is set.During the test, select a specific test type through the control cabinet 1. At the same time, place the water dispenser filled with water (referring to the hot and cold water dispenser) on the test bench, and place the water receiving unit 2 on the test bench so that the waste water receiving tray 22 is positioned below the hot (or cold) water outlet of the water dispenser. Connect the water dispenser to the power supply and let it stand for 2 hours. Start the heating or cooling function of the chiller. When the heating or cooling operation stops, open the hot water valve or cold water valve of the water dispenser. Real-time collect the water outlet temperature of the hot water outlet or cold water outlet of the hot and cold water dispenser through the thermocouple 21. At the same time, the water not participating in the test flows into the waste water receiving tray 22 and flows along the first diversion pipe 28 into the waste water recovery container (at this time, the thermocouple 21, the waste water receiving tray 22, and the test water receiving tray 23 are on the same straight line). The thermocouple 21 transmits the collected water temperature data to the control cabinet 1. After internal data processing by the control cabinet 1, when the control cabinet 1 determines that the instantaneous water temperature reaches the set temperature (such as 90°C for hot water production, 10°C or 15°C for cold water production), the control cabinet 1 generates a control instruction. The driving device receives and executes the control instruction issued by the control cabinet 1, and the driving device drives the waste water receiving tray 22 to rotate. After reaching the set angle, the driving device stops rotating. The hot water or cold water flows into the test water receiving tray 23 and flows along the second diversion pipe 29 into the water receiving container 27 (at this time, the thermocouple 21 and the test water receiving tray 23 are on the same straight line); when the control cabinet 1 determines that the instantaneous water temperature is lower than the set temperature (such as 90°C for hot water production, 10°C or 15°C for cold water production), the control cabinet 1 generates a control instruction. The driving device receives and executes the control instruction issued by the control cabinet 1, and the driving device drives the waste water receiving tray 22 to rotate in the reverse direction. After reaching the set angle, the driving device stops rotating. At this time, the waste water receiving tray 22 rotates back to its original position, and the hot water or cold water flows into the waste water receiving tray 22 and flows along the first diversion pipe 28 into the waste water recovery container (not shown in the figure). This application realizes automatic temperature testing, automatic water intake, and automatic timing during the water production performance test of the hot and cold water dispenser, solving the problems in the prior art that the water production performance test of the hot and cold water dispenser has low efficiency, high labor intensity, and the accuracy of the test results fluctuates greatly with manual operation. It should be noted that the first diversion pipe and the second diversion pipe are both ordinary diversion pipes, and the words "first" and "second" are only added to distinguish their positions.

[0047] In order to change the position of the shift cross bar 30 on the side wall (circumference) of the upright column in the mounting bracket 26 in the horizontal direction, the thermocouple 21 is located on the shift cross bar. One end of the shift cross bar 30 is fixedly connected (such as welded) to a hoop (not shown in the figure), and the hoop is detachably connected to the upright column. A commonly used hoop in the art can be used for the hoop. During use, after adjusting the overall height of the mounting bracket 26 (which can also be understood as the height of the upright column) according to the height of the water dispenser, rotate the shift cross bar 30 in the horizontal direction to make the thermocouple 21 directly below the water outlet of the water dispenser, and then tighten the bolts on the hoop connected to the shift cross bar 30. Preferably, a limit post (not shown in the figure) is provided on the upright column, and the limit post is located below the hoop to prevent the hoop from falling along the upright column. Or a plurality of grooves are provided on the upright column in the circumferential direction. According to needs, one end of the shift cross bar is inserted into the groove at an appropriate position to make the thermocouple 21 directly below the water outlet of the water dispenser.

[0048] As a preference of the above embodiment, in this embodiment, the distances between the thermocouple 21 and the hot water outlet and the cold water outlet of the water dispenser are both 9-11 mm. For example, it can be 9 mm, 9.5 mm, 10 mm, 10.5 mm, 11 mm. Generally, the measurement effect is the best when the two are 10 mm apart. It can also be any intermediate value between any two of the above endpoint values. It should be noted that by adjusting the overall height of the mounting bracket 26, the distances between the thermocouple 21 and the hot water outlet and the cold water outlet of the water dispenser can be adjusted.

[0049] As an embodiment of the specific structure of the above driving device, in this embodiment, the driving device includes: a stepping motor 24 and a shaft rod 25. The stepping motor 24 is connected to the waste water receiving tray 22 through the shaft rod 25. The stepping motor 24 receives and executes the control instructions issued by the control cabinet 1, and drives the waste water receiving tray 22 to rotate through the shaft rod 25 to change the position of the waste water receiving tray 22.

[0050] Refer to Figure 1As shown in the figure, the control cabinet 1 includes: a DC power supply 15, a touch screen 14, a controller 16, a temperature acquisition module 17, a stepper driver 18, an ammeter 19, and a buzzer 12. The DC power supply 15 (also known as the main power supply) is electrically connected to the touch screen 14, the controller 16, the temperature acquisition module 17, the stepper driver 18, and a drive device (referring to the stepper motor 24) respectively for power supply. The controller 16 is used to receive input information and output control signals. The touch screen 14 is connected to the controller 16. The touch screen 14 is used for human-machine interaction to set control information. For example, the test type can be set through the touch screen 14, specifically including: hot water outlet temperature test, hot water production capacity test, cold water outlet temperature test, and cold water production capacity test. The temperature acquisition module 17 is connected to the controller 16 and the thermocouple 21 respectively. The temperature acquisition module 17 detects the (hot or cold) outlet temperature of the hot and cold water dispenser in real time through the thermocouple 21 and transmits the water temperature data to the controller 16. The stepper driver 18 is connected to the controller 16 and the drive device (referring to the stepper motor 24). The controller 16 can be a programmable logic controller or a single-chip microcomputer. The stepper driver 18 receives and executes the control instructions issued by the control cabinet 1 to control the rotation (including the rotation angle and direction) of the drive device (referring to the stepper motor 24). The ammeter 19 is connected to the controller 16. The ammeter 19 is used to detect the working current of the water dispenser to judge the working state of the water dispenser (such as the stop of the heating operation). It should be noted that the working current is different when the water dispenser is in different working states. The buzzer 12 is connected to the controller 16. The buzzer 12 is used to prompt operations and alarm for equipment failures. When the heating or cooling function of the water dispenser stops, the controller 16 judges that the heating or cooling function of the water dispenser has stopped through the change data of the working current of the water dispenser collected by the ammeter 19. The controller 16 issues a control instruction, and the buzzer 12 receives and executes this control instruction to prompt the operator to open the hot water valve or cold water valve of the water dispenser by making a sound.

[0051] Preferably, the control cabinet 1 further includes: an indicator light 11 and an emergency stop switch 13. The indicator light 11 is connected to the DC power supply 15. The indicator light 11 is used to display the operating state of the device. The emergency stop switch 13 is connected to the DC power supply 15. The emergency stop switch 13 is used to urgently shut down the device.

[0052] As a preference of the above embodiment, in this embodiment, the device can also be connected to the upper computer software. Specifically, the control cabinet 1 is connected to the software of the upper computer. The test information is set through the upper computer, and the test results are displayed.

[0053] The following specifically introduces four specific functions (or test types) that the device can achieve: hot water outlet temperature test, hot water production capacity test, cold water outlet temperature test, and cold water production capacity test.

[0054] I. Hot water outlet temperature test

[0055] This function is used for testing the hot water outlet temperature of a hot and cold water dispenser. The specific operations are as follows:

[0056] 1) Select the hot water outlet temperature test option through the touch screen 14;

[0057] 2) Place the water dispenser filled with water on the test bench, connect the power supply and let it stand for 2 hours;

[0058] 3) Place the water receiving unit 2 of the device on the test bench, make the crossbeam of the mounting frame 26 parallel to the water dispenser, and place the waste water receiving tray 22 below the hot water outlet of the water dispenser;

[0059] 4) Lead the second diversion pipe 29 of the test water receiving tray 23 to the graduated water receiving container 27;

[0060] 5) Adjust the position of the thermocouple 21 on the mounting frame 26 to a position 10 mm away from the hot water outlet of the water dispenser;

[0061] 5) Start the heating function of the water dispenser. When the first heating operation stops, the buzzer 12 gives a prompt, and open the hot water valve of the water dispenser;

[0062] 6) At this time, the temperature acquisition module 17 detects the temperature of the hot water outlet of the water dispenser in real time through the thermocouple 21;

[0063] 7) When the instant temperature of the water reaches above 90 °C, the controller 16 controls the stepping motor 24 to rotate by a set angle through the stepping driver 18. The stepping motor 24 rotates the waste water receiving tray 22 through the shaft rod 25, so that the test water receiving tray 23 is located below the hot water outlet, and the hot water flows into the test water receiving tray 23 and flows to the water receiving container 27 through the second diversion pipe 29;

[0064] 8) When the instant temperature of the water is below 90 °C, the controller 16 controls the stepping motor 24 to rotate reversely by a set angle through the stepping driver 18. The stepping motor 24 rotates the waste water receiving tray 22 back to the original position through the shaft rod 25. At this time, the waste water receiving tray 22 is above the test water receiving tray 23, and the hot water flows into the waste water receiving tray 22 and flows into the waste water recovery container through the first diversion pipe 28;

[0065] 9) Calculate the volume of the water in the water receiving container 27, retain 2 decimal places, and the unit is L.

[0066] II. Hot water production capacity test

[0067] This function is used for testing the hot water production capacity of a hot and cold water dispenser. The specific operations are as follows:

[0068] 1) Select the hot water production capacity test option through the touch screen 14;

[0069] 2) Place the water dispenser filled with water on the test bench, turn on the power supply and let it stand for 2 hours;

[0070] 3) Place the water receiving unit 2 of the device on the test bench, make the cross beam of the mounting frame 26 parallel to the water dispenser, and place the waste water receiving tray 22 under the hot water outlet of the water dispenser;

[0071] 4) Lead the second diversion pipe 29 of the test water receiving tray 23 to the graduated water receiving container 27;

[0072] 5) Adjust the position of the thermocouple 21 on the mounting frame 26 to a position 10 mm away from the hot water outlet of the water dispenser;

[0073] 5) Start the heating function of the water dispenser. When the first heating operation stops, the buzzer 12 gives a prompt, and open the hot water valve of the water dispenser;

[0074] 6) At this time, the temperature acquisition module 17 detects the temperature of the hot water outlet of the water dispenser in real time through the thermocouple 21;

[0075] 7) When the instant temperature of the water reaches below 90 °C, the buzzer 12 gives a prompt to close the hot water valve of the water dispenser, and at the same time the controller 16 starts the timing function;

[0076] 8) The water dispenser starts heating again. When the heating operation stops, the buzzer 12 gives a prompt, and open the hot water valve of the water dispenser;

[0077] 9) When the instant temperature of the water reaches above 90 °C, the controller 16 controls the stepping motor 24 to rotate a set angle through the stepping driver 18. The stepping motor 24 rotates the waste water receiving tray 22 through the shaft rod 25, so that the test water receiving tray 23 is located under the hot water outlet. Hot water flows into the test water receiving tray 23 and flows through the second diversion pipe 29 to the water receiving container 27;

[0078] 10) When the instant temperature of the water is below 90 °C, the buzzer 12 gives a prompt to close the hot water valve of the water dispenser. At the same time, the controller 16 controls the stepping motor 24 to rotate reversely by a set angle through the stepping driver 18. The stepping motor 24 rotates the waste water receiving tray 22 back to the original position through the shaft rod 25. At this time, the waste water receiving tray 22 is located under the hot water outlet, and hot water flows into the waste water receiving tray 22 and flows into the waste water recovery container through the first diversion pipe 28;

[0079] 11) After repeating steps 8)-10) for four cycles, the controller 16 stops timing and reads the volume of water in the water receiving container 27;

[0080] 12) Calculate the hot water production capacity, liters per hour (L / h), and retain the result to 1 decimal place after the decimal point.

[0081] III. Measurement of cold water outlet temperature

[0082] This function is used for testing the cold water outlet temperature of a hot and cold water dispenser. The specific operation is as follows:

[0083] 1) Select the cold water outlet temperature test option and the refrigeration mode through the touch screen 14;

[0084] 2) Place the water dispenser filled with water on the test bench. After connecting the power supply and leaving it for 2 hours;

[0085] 3) Place the water receiving unit 2 of the device on the test bench so that the cross beam of the mounting bracket 26 is parallel to the water dispenser, and place the waste water receiving tray 22 below the cold water outlet of the water dispenser;

[0086] 4) Lead the second diversion pipe 29 of the test water receiving tray 23 to the graduated water receiving container 27;

[0087] 5) Adjust the position of the thermocouple 21 on the mounting bracket 26 to a position 10 mm away from the cold water outlet of the water dispenser;

[0088] 5) Start the refrigeration function of the water dispenser. When the first refrigeration operation stops, the buzzer 12 gives a prompt, and open the cold water valve of the water dispenser;

[0089] 6) At this time, the temperature acquisition module 17 detects the cold water outlet temperature of the water dispenser in real time through the thermocouple 21;

[0090] 7) When the instant temperature of the water reaches below the specified temperature (10 °C for compression refrigeration type, 15 °C for electronic refrigeration type), the controller 16 controls the stepping motor 24 to rotate a set angle through the stepping driver 18. The stepping motor 24 rotates the waste water receiving tray 22 through the shaft rod 25 so that the test water receiving tray 23 is positioned below the cold water outlet, and the cold water flows into the test water receiving tray 23 and flows through the second diversion pipe 29 to the graduated water receiving container 27;

[0091] 8) When the instant temperature of the water is higher than the specified temperature (10 °C for compression refrigeration type, 15 °C for electronic refrigeration type), the controller 16 controls the stepping motor 24 to rotate reversely by a set angle through the stepping driver 18. The stepping motor 24 rotates the waste water receiving tray 22 back to its original position through the shaft rod 25. At this time, the waste water receiving tray 22 is positioned below the cold water outlet, and the cold water flows into the waste water receiving tray 22 and flows through the first diversion pipe 28 into the waste water recovery container;

[0092] 9) Calculate the volume of the water in the water receiving container 27, retain 2 decimal places, and the unit is L.

[0093] IV. Refrigerated water capacity test

[0094] This function is used for testing the refrigerated water capacity of a hot and cold water dispenser. The specific operation is as follows:

[0095] 1) Select the chilled water capacity test option and the refrigeration method through the touch screen 14;

[0096] 2) Place the water dispenser filled with water on the test bench, connect the power supply and let it stand for 2 hours;

[0097] 3) Place the water receiving unit 2 of the device on the test bench so that the cross beam of the mounting bracket 26 is parallel to the water dispenser, and place the waste water receiving tray 22 below the cold water outlet of the water dispenser;

[0098] 4) Lead the second guide pipe 29 of the test water receiving tray 23 to the graduated water receiving container 27;

[0099] 5) Adjust the position of the thermocouple 21 on the mounting bracket 26 to a position 10 mm away from the cold water outlet of the water dispenser;

[0100] 5) Start the heating function of the water dispenser. When the first refrigeration operation stops, the buzzer 12 gives a prompt, and open the cold water valve of the water dispenser;

[0101] 6) At this time, the temperature acquisition module 17 detects the temperature of the cold water outlet of the water dispenser in real time through the thermocouple 21;

[0102] 7) When the instant temperature of the water reaches above the specified temperature (10 °C for compression refrigeration type, 15 °C for electronic refrigeration type), the buzzer 12 gives a prompt to close the cold water valve of the water dispenser, and at the same time the controller 16 starts the timing function;

[0103] 8) The water dispenser starts refrigeration again. When the refrigeration operation stops, the buzzer 12 gives a prompt, and open the cold water valve of the water dispenser;

[0104] 9) When the instant temperature of the water reaches below the specified temperature (10 °C for compression refrigeration type, 15 °C for electronic refrigeration type), the controller 16 controls the stepping motor 24 to rotate a set angle through the stepping driver 18. The stepping motor 24 makes the waste water receiving tray 22 rotate through the shaft rod 25, so that the test water receiving tray 23 is positioned below the cold water outlet. Cold water flows into the test water receiving tray 23 and flows through the second guide pipe 29 to the graduated water receiving container 27;

[0105] 10) When the instant temperature of the water reaches above the specified temperature (10 °C for compression refrigeration type, 15 °C for electronic refrigeration type), the buzzer 12 gives a prompt to close the cold water valve of the water dispenser. At the same time, the controller 16 controls the stepping motor 24 to rotate reversely by a set angle through the stepping driver 18. The stepping motor 24 makes the waste water receiving tray 22 rotate back to the original position through the shaft rod 25. At this time, the waste water receiving tray 22 is positioned below the cold water outlet, and cold water flows into the waste water receiving tray 22 and flows through the first guide pipe 28 into the waste water recovery container;

[0106] 11) After repeating steps 8) - 10) for four cycles, the controller 16 stops timing and reads the volume of water in the water receiving container 27;

[0107] 12) Calculate the cooling water capacity, in liters per hour (L / h), and round the result to one decimal place.

[0108] As is known by technical common sense, the present utility model can be implemented by other embodiments that do not depart from its spiritual essence or essential features. Therefore, the above - disclosed embodiments are illustrative in all aspects and not exclusive. All changes within the scope of the present utility model or within the scope equivalent to the present utility model are encompassed by the present utility model.

Claims

1. An automatic test device for the water production performance of a cold and hot drinking water machine, characterized in that The automatic test device includes: a control cabinet for setting the test type and controlling the operation of the entire device; and a water receiving unit including a mounting rack, a thermocouple, a test water receiving tray, a waste water receiving tray, a water receiving container, and a driving device; the height of the mounting rack can be adjusted; the thermocouple is located on the mounting rack, and the thermocouple is signal-connected to the control cabinet for testing the water outlet temperature of the hot and cold water dispenser; the waste water receiving tray rotates and is located below the thermocouple for receiving water not participating in the test; the test water receiving tray is located on the mounting rack below the waste water receiving tray for receiving water participating in the test; the driving device is located on the mounting rack, the driving device is connected to the waste water receiving tray, the driving device is signal-connected to the control cabinet, and the driving device is used to drive the waste water receiving tray to rotate so that the waste water receiving tray and the test water receiving tray alternately receive water; the water receiving container is communicated with the test water receiving tray for measuring the volume of water.

2. The automatic water production performance testing device for the hot and cold drinking water machine according to claim 1, characterized in that The distances between the thermocouple and the hot water outlet and the cold water outlet of the water dispenser are both 9-11 mm.

3. The automatic water production performance testing device for the hot and cold drinking water machine according to claim 1, wherein The mounting rack includes a cross beam, a column, and a base; the column is a telescopic rod, and the spaced columns are connected by the cross beam; the base is located at the bottom of the column; the driving device is installed on the cross beam; the thermocouple is connected to the column through a displacement cross bar; the test water receiving tray is located on the column below the thermocouple.

4. The automatic water production performance testing device for the hot and cold drinking water machine according to claim 1, characterized in that, The driving device includes a stepper motor and a shaft rod; the stepper motor is connected to the waste water receiving tray through the shaft rod.

5. The automatic testing device for the water production performance of the hot and cold drinking water machine according to claim 1, wherein The control cabinet includes a DC power supply, a touch screen, a controller, a temperature acquisition module, a stepper driver, an ammeter, and a buzzer; the DC power supply is electrically connected to the touch screen, the controller, the temperature acquisition module, the stepper driver, and the driving device respectively for power supply; the controller is used to receive input information and output control signals; the touch screen is connected to the controller for man-machine interaction to set control information; the temperature acquisition module is connected to the controller and the thermocouple respectively for transmitting the water outlet temperature data collected by the thermocouple of the water dispenser to the controller; the stepper driver is connected to the controller and the driving device for controlling the rotation of the driving device; the ammeter is connected to the controller for detecting the working current of the water dispenser; the buzzer is connected to the controller for prompting operations and alarming device failures.

6. The automatic water production performance testing device for a hot and cold drinking water machine according to claim 5, characterized in that, The control cabinet further includes an indicator light and an emergency stop switch; the indicator light is connected to the DC power supply for indicating the operation status of the device; the emergency stop switch is connected to the DC power supply for urgently shutting down the device.

7. The automatic water production performance testing device for the hot and cold drinking water machine according to claim 5, wherein The touch screen is used to set the test type, and the test type includes: hot water outlet temperature test, hot water production capacity test, cold water outlet temperature test, cold water production capacity test.

8. The automatic water production performance testing device for the hot and cold drinking water machine according to claim 3, wherein The thermocouple is located on the displacement cross bar; one end of the displacement cross bar is detachably connected to the column through a hoop; or The column is provided with a plurality of grooves along the circumferential direction, and one end of the displacement cross bar is inserted into the groove.

9. The automatic water production performance testing device for the hot and cold drinking water machine according to claim 1, characterized in that The waste water receiving tray is communicated with the waste water recovery container through a diversion pipe.

10. The automatic water production performance testing device for the hot and cold drinking water machine according to claim 1, characterized in that The control cabinet is software-connected to the upper computer, and test information is set through the upper computer and the test results are displayed.

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