Bathroom product testing device

Abstract

The utility model belongs to the technical field of sanitary product testing devices, and provides a sanitary product testing device which comprises a liquid supply assembly, a liquid inlet pipe and a liquid outlet pipe. The liquid inlet pipe and the liquid outlet pipe are connected with the liquid supply assembly, and liquid supplied to the liquid inlet pipe by the liquid supply assembly can flow back to the liquid supply assembly through the liquid outlet pipe. The liquid inlet pipe and the liquid outlet pipe are connected through an adjusting pipe; a first valve is arranged at the end, close to the liquid outlet pipe, of the adjusting pipe, a station valve is arranged on the portion, between the first valve and the liquid inlet pipe, of the adjusting pipe, and the first valve is a stop valve. According to the technical scheme of replacing an overflow valve with pipeline backflow in the stage of replacing a tested piece, hydraulic pressure can be kept more stable in the initial stage of testing, and the technical problem that an existing bathroom testing device is unstable in the testing process can be effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to bathroom product detection device technical field, especially, relate to a bathroom product testing device. BACKGROUND

[0002] Bathroom products refer to the total name of appliances, furniture and accessories used in places such as toilets and bathrooms to meet the needs of health and life such as urination, washing, bathing and storage.

[0003] The performance test of bathroom products is a core quality control link to protect user health and safety, improve product durability and reliability, comply with regulations and standards, maintain consumer rights and interests, and promote the upgrading and standardization of the industry. The existing test equipment quantifies the performance indicators of bathroom products by simulating real use scenarios. For example, in order to solve the problems of single product detection, high equipment repeatability, waste of social resources and high cost existing in bathroom product detection devices, a bathroom product comprehensive detection device is disclosed in the Chinese utility model patent with the authorization publication number CN204903137U, which adopts a test scheme of directly installing the tested piece on the work station valve, and the high-pressure water flows into the water tank after flowing out of the tested piece. After the test is completed, the water in the water tank is put back into the water tank through the water outlet collector for reuse. The technical scheme can be used to detect four experiments of bathroom products, and the structure of the test part is that multiple work station valves are arranged above the same water tank. Although the tested water can be put back into the water tank through the water outlet collector for reuse, in actual application process, according to relevant test standards (such as GB / T23448-2019, EN13618 and ISO4437 etc.), several hundred cycle tests are required for part of the test items of one test piece, such as the cold and hot cycle test of the hose. Obviously, when batch testing of the tested piece is carried out according to the above technical scheme, the mechanical adjustment hysteresis of the overflow regulating valve in the above scheme will cause instability in the initial stage of each test, thus limiting the use of the bathroom product testing device.

[0004] Therefore, the present application provides a bathroom product testing device to solve the above problems. UTILITY MODEL CONTENTS

[0005] Therefore, the present application provides a bathroom product testing device to solve the above problems.

[0006] The utility model adopts the technical scheme of:

[0007] The utility model provides a kind of bathroom product testing device comprising: liquid supply component, liquid inlet pipe and liquid outlet pipe;The liquid inlet pipe and liquid outlet pipe are connected with liquid supply component respectively, the liquid supplied by liquid supply component to liquid inlet pipe can be backflowed to liquid supply component by liquid outlet pipe;The adjusting pipe between liquid inlet pipe and liquid outlet pipe is connected;The first valve is provided at the end of adjusting pipe close to liquid outlet pipe, and the adjusting pipe between the first valve and liquid inlet pipe is provided with station valve, wherein the first valve is stop valve.

[0008] Preferably, the adjusting pipe between the liquid inlet pipe and the liquid outlet pipe is provided with at least two, and a second valve is provided on the adjusting pipe between each station valve and the liquid inlet pipe.

[0009] Preferably, the adjusting pipe includes a first adjusting pipe and a second adjusting pipe, the horizontal section of the first adjusting pipe is higher than that of the second adjusting pipe, and the first adjusting pipe, the second adjusting pipe and the station valve are connected by a tee pipe.

[0010] Preferably, the device further comprises a liquid tank, and the liquid tank is arranged below the station valve.

[0011] Preferably, a support is mounted on the liquid tank, the support is provided with a fixing piece, the same side of the fixing piece is provided with a fixing groove matched with the station valve, and the station valve is connected with the fixing piece through the fixing groove.

[0012] Preferably, the liquid supply component comprises a liquid tank and a fluid power source, the liquid inlet pipe is connected with the liquid tank through the fluid power source, the liquid outlet pipe is communicated with the liquid tank, and the liquid in the liquid tank can flow between the liquid inlet pipe and the liquid outlet pipe under the driving of the fluid power source.

[0013] Preferably, the liquid inlet pipe is further provided with a flow transmitter and a pressure transmitter.

[0014] Preferably, the device further comprises a backflow pipe, one end of the backflow pipe is connected with the liquid inlet pipe, the other end is communicated with the liquid tank, and the liquid in the liquid tank can backflow to the liquid tank under the driving of the fluid power source.

[0015] Preferably, the liquid supply component further comprises a control box, a controller is arranged in the control box, and the controller is electrically connected with the fluid power source.

[0016] Preferably, the device further comprises a constant-temperature box, the liquid inlet pipe and the liquid outlet pipe pass through the constant-temperature box to arrange the station valve in the constant-temperature box.

[0017] In summary, the beneficial effects of the present application are as follows:

[0018] Compared with the prior art, the bathroom product testing device provided by the embodiment of the application comprises a liquid supply assembly, a liquid inlet pipe and a liquid outlet pipe; the liquid inlet pipe and the liquid outlet pipe are connected with the liquid supply assembly respectively, liquid supplied by the liquid supply assembly to the liquid inlet pipe can flow back to the liquid supply assembly through the liquid outlet pipe; the liquid inlet pipe and the liquid outlet pipe are connected through an adjusting pipe; one end of the adjusting pipe close to the liquid outlet pipe is provided with a first valve, and a station valve is arranged on the adjusting pipe between the first valve and the liquid inlet pipe, wherein the first valve is a stop valve. The liquid supply assembly can supply liquid to the liquid inlet pipe, the performance of the tested piece can be tested by closing the first valve and opening the station valve at the same time; by opening the first valve and closing the station valve, liquid can flow back to the liquid supply assembly through the liquid outlet pipe under the driving of the liquid supply assembly, the hydraulic pressure in the pipeline is relatively more stable during the replacement of the tested piece, after the tested piece is replaced, the first valve is closed again and the station valve is opened at the same time to test the next tested piece, and the initial stage of the test is more stable compared with the mechanical adjustment mode depending on the overflow regulating valve. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the application, the drawings needed to be used in the embodiments of the application will be briefly introduced below, and other drawings can be obtained by those skilled in the art without creative labor on the premise that these drawings are within the protection scope of the application.

[0020] Figure 1 It is a three-dimensional structural schematic view of the bathroom product testing device in an embodiment of the application.

[0021] Figure 2 It is a three-dimensional structural schematic view of the bathroom product testing device in another embodiment of the application.

[0022] Figure 3 It is a three-dimensional structural schematic view of the bathroom product testing device in another embodiment of the application.

[0023] Figure 4 It is a three-dimensional structural schematic view of the bathroom product testing device in another embodiment of the application.

[0024] Figure 5 It is a three-dimensional structural schematic view of the bathroom product testing device in another embodiment of the application.

[0025] Parts and their numbers in the figure:

[0026] 1, bathroom product testing device; 10, liquid supply assembly; 100, liquid tank; 101, fluid power source; 102, flow transmitter; 103, pressure transmitter; 104, return pipe; 105, control box; 11, liquid inlet pipe; 12, liquid outlet pipe; 13, adjusting pipe; 132, second adjusting pipe; 1320, second valve; 131, first adjusting pipe; 1310, first valve; 14, station valve; 15, constant temperature box; 16, liquid tank; 160, support; 161, fixed piece; 162, moving frame. DETAILED DESCRIPTION

[0027] 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 below in combination with the drawings in the embodiments of the present application. It should be noted that, in this article, relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or sequence between the entities or operations. In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientations or positional relationships 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. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the processes, methods, articles or devices including a series of elements not only include those elements, but also include other elements not explicitly listed or inherent to such processes, methods, articles or devices. Without more limitations, the elements defined by the statement "include" do not exclude the presence of other identical elements in the processes, methods, articles or devices including the elements. If there is no conflict, the embodiments of the present application and the various features in the embodiments can be combined with each other, and are all within the protection scope of the present application.

[0028] It should be noted that the bathroom product testing device 1 provided by the present application refers to a professional device specially used for simulating real use environment, and performing quantitative detection on the performance, reliability and safety of various bathroom products such as water nozzle, connecting pipe, shower, shower system and intelligent toilet.

[0029] The inventor finds that the existing bathroom product testing device can perform various performance tests, such as freeze-thaw test, sealing test, shower test and the like, but in actual use, the existing testing device has low test efficiency and relatively large test deviation of the same batch of different test pieces. Therefore, the inventor studies the testing device and finds that the existing bathroom product testing device usually uses an overflow regulating valve to control the stability of the water pressure in the pipeline, which has many problems. For example, the Chinese utility model patent with the publication number CN204903137U discloses a bathroom product comprehensive testing device, which needs to close the station valve 14 after each test of a test piece, and then replace the test piece to enter the next test. In this process, the pressure regulating principle in the pipeline is that the high-pressure water output by the centrifugal pump enters the overflow tee joint, and is divided into two paths, one path flows to the test station, and the other path flows back to the water tank through the overflow regulating valve. When the pressure in the pipeline rises, such as closing the station valve 14, the overflow regulating valve automatically opens to increase the backflow to guide the excess high-pressure water back to the water tank to rapidly reduce the pressure to the set value; when the system pressure decreases, such as opening the station valve 14, the overflow regulating valve automatically closes to reduce the backflow to maintain the pressure stable. However, the overflow regulating valve itself is a mechanical regulating component, and the valve core action and flow adjustment have inherent corresponding delay. When the station valve 14 is closed, the water pump is still working, and the entire flow in the main pipeline needs to flow back through the overflow regulating valve, so the system pressure will rise in a short time; when the station valve 14 is opened, the main pipeline flow suddenly increases, and the pressure will temporarily decrease, and the overflow regulating valve needs to quickly close the backflow to supplement the flow of the main pipeline, but the hysteresis of mechanical regulation will cause unstable flow in the initial stage, thereby affecting the test. Further, the cost of using the overflow regulating valve and the like to control the equipment is relatively high; and the efficiency of the single detection and the water weighing method is relatively low.

[0030] Therefore, the bathroom product testing device 1 provided by the utility model embodiment replaces the overflow valve with the pipeline backflow in the test piece replacement stage, can keep the hydraulic pressure more stable in the initial stage of the test, and can effectively solve the technical problem of unstable test process of the existing bathroom testing device. The following will be described with reference to the drawings; the following liquid is taken as water for illustration.

[0031] Please refer to Figures 1 to 5The utility model embodiment provides a kind of bathroom product testing device 1, comprising: liquid supply component 10, liquid inlet pipe 11 and liquid outlet pipe 12;Liquid inlet pipe 11 and liquid outlet pipe 12 are connected with liquid supply component 10 respectively, the liquid that liquid supply component 10 supplies to liquid inlet pipe 11 can be backflowed to liquid supply component 10 by liquid outlet pipe 12;Liquid inlet pipe 11 and liquid outlet pipe 12 are connected by adjusting pipe 13;The first valve 1310 is arranged in the end of adjusting pipe 13 close to liquid outlet pipe 12, and work station valve 14 is arranged on adjusting pipe 13 between the first valve 1310 and liquid inlet pipe 11, wherein, the first valve 1310 is stop valve.

[0032] In the embodiment, liquid supply component 10 is the power and liquid supply component of entire testing device, for continuously delivering stable pressure and flow liquid to liquid inlet pipe 11, and can receive the liquid backflowed by liquid outlet pipe 12, forms stable supply pressure system.Liquid outlet pipe 12 connects liquid supply component 10 and adjusting pipe 13, and is the main passage of liquid from liquid supply component 10 to test station.Liquid outlet pipe 12 connects liquid supply component 10 and adjusting pipe 13, can backflow liquid from adjusting pipe 13 to liquid supply component 10 in the process of replacing test piece, to maintain the stability of liquid.Adjusting pipe 13 connects liquid inlet pipe 11 and liquid outlet pipe 12, is the node for realizing that test piece can be smoothly tested and the stability of liquid when replacing test piece, simultaneously provides installation carrier for work station valve 14 and first valve 1310.The adjusting pipe 13 can guarantee the stability of liquid by only two valve switches combination, relatively simple structure, need not be equipped with relatively expensive regulating flow valve, can reduce the cost of testing equipment.The first valve 1310 is arranged in the end of adjusting valve close to liquid outlet pipe 12, for controlling the on-off of passage between adjusting pipe 13 and liquid outlet pipe 12.Work station valve 14 is arranged on adjusting pipe 13 between the first valve 1310 and liquid inlet pipe 11, controls the on-off of passage between liquid inlet pipe 11 and test station.

[0033] Take the freeze-thaw test of the connecting pipeline of bathroom products as an example. It should be pointed out that the freeze-thaw test refers to the detection project for evaluating the ability of the pipeline to maintain physical and mechanical properties, sealing performance and structural integrity under the action of repeated freezing and thawing by simulating the cycle test environment of low temperature freezing and normal temperature thawing for metal, plastic or composite pipelines used in bathroom scenes. For example, the liquid inlet pipe 11, the liquid outlet pipe 12, the adjusting pipe 13 and the station valve 14 are placed in a simulated low temperature environment, the tested piece is connected to the station valve 14, the first valve 1310 is closed and the station valve 14 is opened at the same time, the water flow is driven by the liquid supply assembly 10, enters through the liquid inlet pipe 11, and then enters the tested pipeline through the adjusting pipe 13 and the station valve 14. After a predetermined time, the first valve 1310 is opened and the station valve 14 is closed at the same time, the tested pipeline is taken off and another tested pipeline is replaced, and finally the frozen test pipeline is placed in a normal temperature environment to thaw for a predetermined time, and the above process is repeated for several times to complete the test.

[0034] In the above embodiment, by opening the first valve 1310 and closing the station valve 14, the liquid can flow back to the liquid supply assembly 10 through the liquid outlet pipe 12 under the drive of the liquid supply assembly 10. During the replacement of the tested piece, the hydraulic pressure in the pipeline is relatively more stable. After the replacement of the tested piece, the first valve 1310 is closed again and the station valve 14 is opened to test the next tested piece. The initial stage of the test is more stable than the mechanical adjustment mode relying on the overflow regulating valve. It can be understood that the stop valve is a forced sealing type cutoff valve, which controls the on-off and flow of the medium by changing the gap between the valve disc and the valve seat. Under the same use scene, under the conditions of the same specification, the same material and the same application level, due to the relatively complex structure and function of the overflow regulating valve compared with the stop valve, the cost is higher than that of the stop valve.

[0035] Please refer to Figures 1 to 5 , the adjusting pipe 13 between the liquid inlet pipe 11 and the liquid outlet pipe 12 is provided with at least two, and the second valve 1320 is arranged on the adjusting pipe 13 between each station valve 14 and the liquid inlet pipe 11.

[0036] In this embodiment, a plurality of independent liquid passages are arranged between the liquid inlet pipe 11 and the liquid outlet pipe 12, each passage can correspond to an independent test station, and parallel testing of multiple bathroom products is realized. The second valve 1320 is used to independently control the on-off of the passage between each adjusting pipe 13 and the liquid inlet pipe 11, so as to realize the control of a single test station.

[0037] It should be noted that although the existing detection device can also be provided with multiple station valves 14 to improve the detection efficiency, but it cannot realize the stability of the water flow through the cooperative work of the two station valves 14. For example, the technical solution adopted in the Chinese utility model patent with the authorization announcement number CN204903137U realizes multi-station detection through the mode of multiple stations sharing a water tank. When multiple stations are used simultaneously to improve the detection efficiency, the weighing mechanism cannot distinguish the weight of each station, and the collected water flow cannot be stably recovered due to contact with the external environment.

[0038] In the above embodiment, different station valves 14 can work cooperatively to maintain the stability of the water pressure in the return pipe 104. For example, taking the cold and hot cycle resistance test of the pipeline connected to the bathroom product as an example. It should be noted that the cold and hot cycle resistance test is a detection project for metal, plastic or composite pipelines used in bathroom scenes. Through simulating the actual working conditions such as alternating supply of cold and hot water and seasonal temperature difference, the ability of the pipeline to maintain physical and mechanical properties, sealing performance and structural integrity under the action of repeated temperature alternation is evaluated. For typical scenarios, please refer to shower hoses and water nozzle connecting pipes that frequently contact cold and hot water. In the actual test process, the two ends of the connecting pipeline can be connected to two adjacent station valves 14 respectively. By opening the second valve 1320 of one station valve 14 and closing the first valve 1310, the water flow can enter the connecting pipeline from the liquid inlet pipe 11. The second valve 1320 of the other station is closed, and the first valve 1310 is opened, so that the water flow can enter the liquid outlet pipe 12 from the connecting pipeline, and then return to the liquid supply assembly 10.

[0039] Please refer to Figures 1 to 5 In an embodiment, the adjusting pipe 13 includes a first adjusting pipe 131 and a second adjusting pipe 132, and the horizontal section of the first adjusting pipe 131 is higher than that of the second adjusting pipe 132; the first adjusting pipe 131, the second adjusting pipe 132 and the station valve 14 are connected through a three-way pipe.

[0040] In this embodiment, when the second valve 1320 and the first valve 1310 are opened and the station valve 14 is closed, the water flow in the liquid inlet pipe 11 can enter the liquid outlet pipe 12 through the second adjusting pipe 132 and the first adjusting pipe 131 in turn; when the second valve 1320 and the station valve 14 are opened and the first valve 1310 is closed, the water flow in the liquid inlet pipe 11 can flow out through the second adjusting pipe 132 and the station valve 14 in turn.

[0041] Please refer to Figures 1 to 5 In an embodiment, the device further includes a liquid tank 16, which is arranged below the station valve 14.

[0042] In this embodiment, the liquid tank 16 is used to collect the liquid flowed out by the station valve 14. For example, Figure 2As shown, the liquid tank 16 can be supported by a moving frame 162, which can be moved by setting universal wheels.

[0043] It should be noted that the height of the liquid tank 16 can be higher than the container for containing liquid in the liquid supply assembly 10, and the liquid collected in the liquid tank 16 can also be returned to the liquid supply assembly 10 through a pipeline in communication with the liquid tank 16. Specifically, a hole can be formed in the side or bottom of the liquid tank 16, and the pipeline can be in communication with the liquid tank 16 through the hole.

[0044] Please refer to Figures 1 to 5 In an embodiment, a bracket 160 is mounted on the liquid tank 16, and a fixing sheet 161 is arranged on the bracket 160. The same side of the fixing sheet 161 is provided with a fixing groove matched with the station valve 14, and the station valve 14 is connected with the fixing sheet 161 through the fixing groove.

[0045] In the embodiment, the bracket 160 is used to mount and fix the station valve 14. Specifically, the bracket 160 can be a gantry frame spanning the liquid tank 16, and the fixing sheet 161 is arranged along the length direction of the gantry frame. Correspondingly, the station valve 14 is arranged side by side along the length direction, and the station valve 14 is clamped in the fixing groove. The position of the station valve 14 matched with the fixing groove is provided with external threads, and a fastening sheet is sleeved on the station valve 14. The station valve 14 is arranged on the fixing sheet 161 through the cooperation of the fastening sheet and the fixing sheet 161. Figure 3 As shown, the fixing sheet 161 has a rectangular structure, and a plurality of inwardly recessed fixing grooves are formed on one side along the length direction. The fastening sheet has a ring-shaped gasket structure, and the inner circle can be provided with threads matched with the external threads on the station valve 14 to fasten the station valve 14 in the perpendicular direction of the fixing sheet 161.

[0046] Further, as shown, Figure 3 The fixing sheet 161 is further provided with a fixing hole, which is used to cooperate with a fixing jig to fix the fixing jig on the fixing sheet 161, and then mount the to-be-detected piece on the fixing sheet 161. The fixing sheet 161 can be an integral structure, i.e., the fixing sheet 161 is a whole piece of structure, and a plurality of corresponding fixing holes are arranged on the whole piece of structure. The fixing sheet 161 can be a single piece of structure, i.e., one or more fixing holes are arranged on a single fixing sheet 161. Meanwhile, the fixing sheet 161 is further provided with a fastening hole, and the fixing sheet 161 is fixed on the bracket 160 through the bolt and the fastening hole.

[0047] It should be noted that the specific shape of the fixing hole is not limited in the embodiment, and the fixing hole can be a hole of any shape, which can be determined according to the connection structure of the fixing jig, as long as the cooperation of the fixing hole and the fixing jig can be realized. Exemplarily, Figure 3As shown, the fixing hole can be a waist-round hole, i.e. the middle part of the hole is rectangular, and the two sides are semicircular or the two sides are elliptical.

[0048] Please refer to Figures 1 to 5 In an embodiment, the liquid supply assembly 10 comprises a liquid tank 100 and a fluid power source 101, the liquid inlet pipe 11 is connected with the liquid tank 100 through the fluid power source 101; the liquid outlet pipe 12 communicates with the liquid tank 100, and the liquid in the liquid tank 100 can flow between the liquid inlet pipe 11 and the liquid outlet pipe 12 under the driving of the fluid power source 101.

[0049] In the embodiment, the liquid supply tank 100 is used to contain liquid. For example, the liquid supply tank 100 can be a water tank, and the water tank is internally filled with water. The fluid power source 101 is used to drive the water in the liquid supply tank 100 into the liquid inlet pipe 11 to provide power for the liquid flow. Specifically, the fluid power source 101 can be a three-dimensional water pump. For example, Figure 5 As shown, the bottom of the water tank is connected with the water inlet of the bottom of the three-dimensional water pump through a pipeline, the liquid inlet pipe 11 is connected with the water outlet of the three-dimensional water pump, and the three-dimensional water pump can pump the water in the water tank into the liquid inlet pipe 11.

[0050] Please refer to Figures 1 to 5 In an embodiment, the liquid inlet pipe 11 is further provided with a flow transmitter 102 and a pressure transmitter 103.

[0051] In the embodiment, the flow transmitter 102 can provide stable flow supply for the test station and feed back flow data to the control system to adjust the rotation speed of the three-dimensional water pump and / or the valve opening degree according to the preset parameters to maintain the liquid inlet flow stable at the set value. At the same time, the flow change curve in the liquid outlet pipe 12 can be recorded during the test. The pressure transmitter 103 can ensure that the water pressure of the test station is stable at the set value. For example, when the pressure exceeds the threshold value, the three-dimensional water pump can adjust the rotation speed and / or the valve opening degree under the control of the control system, and the control system will issue an alarm.

[0052] In the above embodiment, the flow transmitter 102 monitors the flow, and the pressure transmitter 103 monitors the pressure, and the data of the two are cooperatively fed back to the control system to automatically adjust the rotation speed of the liquid supply pump and the valve opening degree to ensure the accurate stability of the test condition. It can be understood that the pressure transmitter 103 can dynamically simulate and automatically respond to the test system based on the regional difference of the water supply pressure, simulate the durability test and automatic control under the condition of water pressure change of the water supply system of different regions, and the output pressure range is 0.1MPa to 1.0MPa, and the control accuracy is positive and negative 0.02MPa, which can simulate static or dynamic pressure maintaining and pulsating pressure increasing and other working conditions. When the measured sample leaks, breaks or has abnormal flow, the failure event is determined and the emergency pressure relief is triggered, and the time, pressure and temperature and other key parameters are recorded.

[0053] In the above embodiment, multiple data collectors and matching control systems are arranged to realize multi-scene data collection and testing for bathroom products. During testing, environmental parameters such as temperature and humidity, and fluid parameters such as water pressure and water temperature of the liquid inlet pipe are synchronously collected. It should be noted that the work station valve 14 can be a replaceable standard part, such as a faucet with a one-way valve. By establishing a testing sample installation interface standard, various product types such as kitchen water nozzle, basin water nozzle, connecting hose and intelligent toilet flushing valve can be adapted.

[0054] Further, the liquid inlet pipe 11 is further provided with a pressure pulsation generating device. The pressure pulsation generating device is used to actively create periodic or random water pressure fluctuations in the fluid pipeline system to simulate the dynamic water pressure environment encountered by bathroom products in real use scenarios.

[0055] In the above embodiment, by arranging the pressure pulsation generating device on the liquid inlet pipe 11, the defect that the existing bathroom product testing device can only test stable water pressure conditions can be effectively solved. Specifically, when the pressure pulsation generating device is arranged on the liquid inlet pipe 11, the pressure pulsation generating device can be installed between the fluid power source 101 and the liquid inlet pipe 11 to directly modulate the output water pressure of the liquid supply system, so that the water flow entering the test station carries the pressure fluctuation; or a pulsation generating unit can be connected in parallel on the liquid inlet pipe 11, and the electromagnetic valve controls the on-off of the side to introduce the pressure fluctuation signal as needed. For example, the pressure pulsation generating device can include a piston type pulse generator, which drives the piston to reciprocate to extrude the liquid in the pipeline to generate periodic pressure changes; or an electromagnetic pulsation valve, which uses an electromagnet to quickly open and close a micro valve to create high-frequency small-amplitude pressure pulses in the pipeline; or a high-precision servo valve is used to adjust the flow, and a pressure feedback closed-loop control is used to realize the simulation of pressure pulsation of any waveform.

[0056] Please refer to Figures 1 to 5 In an embodiment, the liquid supply assembly 10 further includes a control box 105, and a controller is arranged in the control box 105 and electrically connected with the fluid power source 101.

[0057] In this embodiment, as Figure 5As shown, the control box 105 includes a control component part and a containing part. The control component part can receive the detection signals of the flow transmitter 102 and the pressure transmitter 103 in real time, convert them into data for analysis, and control the start-stop and speed adjustment of the three-dimensional water pump according to the parameter settings. For example, the PID (PID: Proportional Integral Derivative Controller) control algorithm can be used to compare the actual detection with the set value, and then adjust the speed of the three-dimensional water pump and the valve opening to maintain the stability of the pressure and flow of the liquid in the liquid inlet pipe 11. The containing part is arranged below the control part and is formed by the bracket 160 and the surrounding plate of the control box 105, and is used to contain the water tank, the three-dimensional water pump, the connected pipeline, and part of the control system circuit.

[0058] Please refer to Figures 1 to 5 In an embodiment, the device further comprises a thermostat 15, and the liquid inlet pipe 11 and the liquid outlet pipe 12 pass through the thermostat 15 to arrange the station valve 14 in the thermostat 15. A humidity sensor is arranged in the thermostat 15. The volume of the thermostat 15 is greater than or equal to 6 cubic meters.

[0059] In the embodiment, the thermostat 15 can simulate different regional and seasonal working conditions to test the performance of the bathroom product under typical working conditions and verify the environmental suitability of the product.

[0060] Specifically, in the above embodiment, the thermostat 15 can be internally provided with an electric heating pipe and a semiconductor refrigeration sheet or a compression refrigeration system, and the heating pipe and the semiconductor refrigeration sheet or the compression refrigeration system are electrically connected with the control box 105 and controlled by the control box 105. The thermostat 15 can be controlled by the control box 105 to stably switch the working mode according to the setting. It can be understood that the thermostat 15 is provided with a high-precision sensor to detect the temperature of the fluid and / or air inside the thermostat 15 in real time.

[0061] In the above embodiment, the temperature, humidity, and water pressure can be coupled and simulated in the thermostat environment test device, and the volume of the thermostat 15 is greater than or equal to 6 cubic meters, which can construct an environment simulation space meeting the layout requirements of typical residential bathroom products. It should be noted that the thermostat 15 can control the temperature at -60 degrees Celsius to 120 degrees Celsius, and the relative humidity can be controlled in the range of 30% to 95% RH, so as to realize the stable linkage control of temperature and humidity in a long time period, and support a continuous temperature change rate greater than or equal to 1℃ / min.

[0062] Please refer to Figures 1 to 5 In an embodiment, the device further comprises a backflow pipe 104, one end of which is connected with the liquid inlet pipe 11 and the other end of which is communicated with the liquid supply tank 100.

[0063] Specifically, as shown in Figure 5 It can be understood that the overflow regulating valve or a common ball valve can be arranged on the return pipe 104; when the overflow regulating valve is arranged, the working principle and function of the whole bathroom product testing device 1 are consistent with those disclosed in the prior art, and thus will not be described here.

[0064] In an embodiment, the liquid tank 100 is externally provided with a transparent liquid level pipe for observing the liquid position in the liquid tank 100 from the outside.

[0065] In an embodiment, the liquid tank 100 is further provided with an overflow pipe, one end of the overflow pipe is led out of the liquid tank 100, and the other end is arranged in the liquid tank 100. When the liquid in the liquid tank 100 is higher than the overflow pipe, the liquid that is too high can be led out of the liquid tank 100 through the overflow pipe.

[0066] In an embodiment, the device further comprises a water supply pipe for supplying water to the liquid tank 100 and a drain pipe for draining the liquid in the liquid tank 100.

[0067] In summary, the bathroom product testing device 1 provided by the embodiment of the present application comprises a liquid supply assembly 10, a liquid inlet pipe 11 and a liquid outlet pipe 12; the liquid inlet pipe 11 and the liquid outlet pipe 12 are respectively connected with the liquid supply assembly 10, the liquid supplied by the liquid supply assembly 10 to the liquid inlet pipe 11 can be returned to the liquid supply assembly 10 through the liquid outlet pipe 12; the liquid inlet pipe 11 and the liquid outlet pipe 12 are connected through an adjusting pipe 13; one end of the adjusting pipe 13 close to the liquid outlet pipe 12 is provided with a first valve 1310, and a station valve 14 is arranged on the adjusting pipe 13 between the first valve 1310 and the liquid inlet pipe 11, wherein the first valve 1310 is a stop valve. The liquid supply assembly 10 can supply liquid to the liquid inlet pipe 11, the performance test of the tested piece can be performed by closing the first valve 1310 and opening the station valve 14 at the same time; by opening the first valve 1310 and closing the station valve 14, the liquid can be returned to the liquid supply assembly 10 through the liquid outlet pipe 12 under the driving of the liquid supply assembly 10, the liquid pressure in the pipeline is relatively more stable during the replacement of the tested piece, after the replacement of the tested piece, the first valve 1310 is closed again and the station valve 14 is opened at the same time to test the next tested piece, and the initial stage of the test is more stable than the mechanical adjusting mode relying on the overflow regulating valve. The technical scheme of the present application can keep the liquid pressure more stable at the initial stage of the test by replacing the overflow valve with the pipeline return during the replacement of the tested piece, and can effectively solve the technical problem of unstable test process of the existing bathroom testing device.

[0068] The above merely describes a specific implementation of the present application. Those skilled in the art can clearly understand the specific working processes of the system, modules and units described above for the convenience and brevity of description, and the corresponding processes in the foregoing method embodiments can be referred to, which will not be described herein again. It should be understood that the protection scope of the present application is not limited in this way, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical range disclosed in the present application, and these modifications or replacements should be covered within the protection scope of the present application.

Claims

1. A bathroom product testing apparatus characterised in that, The device comprises: a liquid supply assembly, a liquid inlet pipe and a liquid outlet pipe; the liquid inlet pipe and the liquid outlet pipe are connected with the liquid supply assembly respectively, and the liquid supplied by the liquid supply assembly to the liquid inlet pipe can flow back to the liquid supply assembly through the liquid outlet pipe; the liquid inlet pipe and the liquid outlet pipe are connected through an adjusting pipe; one end of the adjusting pipe close to the liquid outlet pipe is provided with a first valve, and a work station valve is arranged on the adjusting pipe between the first valve and the liquid inlet pipe; wherein the first valve is a stop valve.

2. A bathroom product testing apparatus according to claim 1, characterised in that, The adjusting pipe between the liquid inlet pipe and the liquid outlet pipe is provided with at least two, and a second valve is arranged on the adjusting pipe between each work station valve and the liquid inlet pipe.

3. The bathroom product testing device of claim 1, wherein, The adjusting pipe comprises a first adjusting pipe and a second adjusting pipe, and the horizontal section of the first adjusting pipe is higher than that of the second adjusting pipe; the first adjusting pipe, the second adjusting pipe and the work station valve are connected through a tee pipe.

4. The bathroom product testing device of claim 1, wherein, The device further comprises a liquid tank, which is arranged below the work station valve.

5. A bathroom product testing apparatus according to claim 4, wherein, A support is mounted on the liquid tank, and a fixing sheet is arranged on the support; a fixing groove matched with the work station valve is arranged on the same side of the fixing sheet, and the work station valve is connected with the fixing sheet through the fixing groove.

6. The bathroom product testing device of claim 1, wherein, The liquid supply assembly comprises a liquid tank and a fluid power source, and the liquid inlet pipe is connected with the liquid tank through the fluid power source; the liquid outlet pipe is communicated with the liquid tank, and the liquid in the liquid tank can flow between the liquid inlet pipe and the liquid outlet pipe under the driving of the fluid power source.

7. A bathroom product testing apparatus according to claim 6, wherein, A flow transmitter and a pressure transmitter are further arranged on the liquid inlet pipe.

8. A bathroom product testing apparatus according to claim 7, characterised in that, The device further comprises a backflow pipe, one end of which is connected with the liquid inlet pipe and the other end of which is communicated with the liquid tank; the liquid in the liquid tank can flow back to the liquid tank under the driving of the fluid power source.

9. The bathroom product testing device of claim 6, wherein, The liquid supply assembly further comprises a control box, and a controller is arranged in the control box, which is electrically connected with the fluid power source.

10. A bathroom product testing apparatus according to any one of claims 1 to 9, wherein, The device further comprises a constant temperature box, and the liquid inlet pipe and the liquid outlet pipe pass through the constant temperature box to arrange the work station valve in the constant temperature box.

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