A test device for testing the performance of a plug with CO alarm function

Abstract

The utility model relates to a kind of test equipment for testing the performance of plug with CO alarm function, including the test chamber for placing test plug and being equipped with test air inlet, further including flow regulator, the flow regulator has respectively adjusting air inlet, adjusting air outlet, large flow valve and small flow valve, wherein, adjusting air inlet is used to connect external CO gas source, adjusting air outlet is used to output adjusted CO airflow and is used to be in fluid communication with the test air inlet, and, during the test process, in the both of large flow valve and small flow valve, alternatively in fluid communication with adjusting air inlet and adjusting air outlet. Compared with prior art, the utility model can realize the test of the performance of plug with CO alarm function, and test efficiency is high, test result is accurate.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment, and in particular to a testing device for testing the performance of a plug with a CO alarm function. Background Technology

[0002] Currently, most home appliances use ordinary power plugs, which cannot provide overload or CO alarm protection. Gas-fired products (such as gas stoves and gas water heaters) produce carbon monoxide (CO) during combustion. Carbon monoxide is colorless, odorless, and non-irritating. Once inhaled, it enters the bloodstream and combines with hemoglobin to form carboxyhemoglobin, causing hemoglobin to lose its oxygen-carrying capacity. This leads to tissue hypoxia and poisoning; without timely treatment, it can cause death from oxygen deprivation.

[0003] For user safety, it is crucial to take precautions against carbon monoxide leaks when using gas-fired products such as gas stoves and gas water heaters. Therefore, it is essential that gas-fired products be equipped with plugs featuring a CO alarm function. When the ambient CO concentration is within acceptable limits (e.g., 200 ppm), the indicator light on the plug will flash green. When the CO concentration reaches 500 ppm, the indicator light will flash red and sound an alarm.

[0004] Currently, there is no equipment available to test the performance of plugs with CO alarm functions, and accurately adjusting the CO concentration to the required test concentration (200ppm, 500ppm) is also a problem that needs to be solved. Furthermore, improper handling of the CO gas required for testing (e.g., leaks, improper emissions, etc.) can pose a danger to the operator. Summary of the Invention

[0005] The first technical problem to be solved by this utility model is to provide a testing device for testing the performance of a plug with CO alarm function, in contrast to the prior art.

[0006] The second technical problem to be solved by this utility model is to provide a testing device with high testing efficiency and accurate test results for testing the performance of plugs with CO alarm function, which is in contrast to the prior art.

[0007] The third technical problem to be solved by this utility model is to provide a safe testing device for testing the performance of plugs with CO alarm function, which is in contrast to the prior art.

[0008] The technical solution adopted by this utility model to solve at least one of the above-mentioned technical problems is as follows: a test device for testing the performance of a plug with a CO alarm function, characterized in that it includes a test chamber for placing the test plug and having a test air inlet, and also includes a flow regulator, which has an adjustment air inlet, an adjustment air outlet, a large flow valve and a small flow valve, wherein the adjustment air inlet is used to connect to an external CO gas source, the adjustment air outlet is used to output the adjusted CO gas flow and is used to fluidly communicate with the test air inlet, and during the test, one of the large flow valve and the small flow valve is selected to fluidly communicate with the adjustment air inlet and the adjustment air outlet.

[0009] Furthermore, in the initial stage of the test, the high-flow valve is fluidly connected to the adjusting inlet and adjusting outlet. When the CO concentration in the test chamber approaches 200 ppm, the low-flow valve is fluidly connected to the adjusting inlet and adjusting outlet until the CO concentration in the test chamber reaches 200 ppm. Then, the high-flow valve is fluidly connected to the adjusting inlet and adjusting outlet. When the CO concentration in the test chamber approaches 500 ppm, the low-flow valve is fluidly connected to the adjusting inlet and adjusting outlet until the CO concentration in the test chamber reaches 500 ppm.

[0010] In the initial stage of the test, the CO concentration in the test chamber is rapidly increased using a high-flow-rate valve. When the CO concentration approaches 200 ppm, a low-flow-rate valve is used to precisely bring the CO concentration to 200 ppm. At this point, observe whether the indicator light on the test plug displays green (setting the test concentration to 200 ppm ensures the test plug can display green correctly when the concentration is below the alarm value). Next, the CO concentration in the test chamber is rapidly increased again using the high-flow-rate valve. When the CO concentration approaches 500 ppm, a low-flow-rate valve is used to precisely bring the CO concentration to 500 ppm. At this point, observe whether the indicator light on the test plug displays red and the buzzer sounds an alarm. It is evident that this setup improves testing efficiency and helps ensure the accuracy of the test results.

[0011] Furthermore, the flow regulator also includes a control switch for manually controlling the opening and closing of the small flow valve. Manually controlling the opening and closing of the small flow valve via the control switch allows the CO concentration in the test chamber to better reach the preset test concentration, thus better ensuring the accuracy of the test results.

[0012] Furthermore, it also includes an exhaust structure, which comprises an exhaust chamber with an inlet and an outlet, wherein the inlet is in fluid communication with the exhaust port of the aforementioned test chamber. It also includes an inlet valve for controlling the opening and closing of the inlet and an outlet valve for controlling the opening and closing of the outlet. After the test, the exhaust structure vents the CO in the test chamber, preventing CO from directly hitting the operator and causing harm when the test plug is directly removed from the test chamber.

[0013] Furthermore, the exhaust structure also includes an exhaust fan, which drives the gas in the exhaust chamber to be discharged through the outlet. The exhaust fan can accelerate the discharge rate of CO entering the exhaust chamber, thereby accelerating the emission rate of CO in the test chamber.

[0014] Furthermore, an exhaust pipe leading to the outside is connected to the air outlet. This allows the CO gas used in the test to be discharged outdoors after the test, better protecting the operator's safety.

[0015] Furthermore, the test chamber is equipped with a CO detector for monitoring the CO concentration inside the chamber. The CO detector allows for real-time monitoring of the CO concentration within the test chamber.

[0016] Furthermore, a circulating fan is installed in the test chamber. The circulating fan promotes the circulation and mixing of gases within the test chamber, thereby ensuring a uniform distribution of CO gas. This helps guarantee the accuracy of CO concentration monitoring within the test chamber, and consequently, the accuracy of the plug performance test results.

[0017] Furthermore, there is a certain distance between the circulating fan and the CO detector. This is to prevent the CO detector from being too close to the circulating fan, which could affect the accuracy of the CO detector's monitoring results.

[0018] Furthermore, the test chamber has a viewing window for observing the test plug during testing, which is sealed with a transparent panel. The viewing window facilitates observation of the color displayed by the indicator light on the test plug during testing, while sealing the window prevents CO leakage from the test chamber during testing. CO leakage not only poses a safety hazard to the operator but also affects the accuracy of the test results.

[0019] Compared with existing technologies, the advantages of this invention are as follows: This invention includes a test chamber. During testing, the test plug is placed in the test chamber, and CO is introduced into the test chamber through the test air inlet. When the CO concentration in the test chamber is lower than the warning value (500ppm), the indicator light on the plug displays green (normal). When the CO concentration in the test chamber is greater than or equal to the warning value, the indicator light on the plug displays red (exceeding the limit), and a buzzer alarm sounds. The above test results show that the plug performs normally, and vice versa. Therefore, this invention can be used to test the performance of plugs with CO alarm functions.

[0020] Furthermore, this invention uses a flow regulator to adjust the concentration of CO entering the test chamber. The flow regulator includes a high-flow valve and a low-flow valve. During the test, the high-flow valve and the low-flow valve can be selectively connected to the inlet and outlet of the test chamber according to the test requirements. In this way, the high-flow valve allows CO gas to enter the test chamber quickly, so that the CO concentration in the test chamber can quickly reach the preset test value, improving the test efficiency. At the same time, the low-flow valve allows the CO concentration in the test chamber to accurately reach the preset test value, improving the accuracy of the test results. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the test equipment in an embodiment of the present invention. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0023] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Since the embodiments disclosed in this utility model can be arranged in different directions, these terms indicating direction are only for illustration and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity. In addition, features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0024] like Figure 1 As shown, a testing device for testing the performance of a plug with a CO alarm function includes a test chamber 3 for placing the test plug 2 and having a test air inlet 31, and a flow regulator 4. The flow regulator 4 has an adjustment air inlet 41, an adjustment air outlet 42, a high-flow valve 43, and a low-flow valve 44. The adjustment air inlet 41 is used to connect to an external CO gas source, and the adjustment air outlet 42 is used to output the adjusted CO gas flow and is used to fluidly communicate with the test air inlet 31. During the test, either the high-flow valve 43 or the low-flow valve 44 is selected to be fluidly communicated with both the adjustment air inlet 41 and the adjustment air outlet 42.

[0025] As can be seen from the above, the testing equipment of this utility model is equipped with a test chamber 3. During testing, the test plug 2 is placed in the test chamber 3, and CO is introduced into the test chamber 3 through the test air inlet 31. When the CO concentration in the test chamber 3 is lower than the warning value (500ppm), the indicator light of the plug 2 shows green (normal). When the CO concentration in the test chamber 3 is greater than or equal to the warning value, the indicator light of the plug 2 shows red (exceeding the standard), and a buzzer alarm sounds. The above test results show that the plug 2 performs normally, and vice versa. It can be seen that this utility model can realize the testing of the performance of plugs with CO alarm function. Furthermore, this utility model uses a flow regulator 4 to adjust the concentration of CO entering the test chamber 3. The flow regulator 4 includes a large flow valve 43 and a small flow valve 44. During the test, either the high-flow valve 43 or the low-flow valve 44 can be fluidly connected to the adjusting inlet 41 and the adjusting outlet 42, depending on the test requirements. Specifically, the high-flow valve 43 is fluidly connected to both the adjusting inlet 41 and the adjusting outlet 42 (specifically, the inlet of the high-flow valve 43 is fluidly connected to the adjusting inlet 41, while the outlet is fluidly connected to the adjusting outlet 42). CO entering through the adjusting inlet 41 passes through the high-flow valve 43 and is output through the adjusting outlet 42. Alternatively, the low-flow valve 44 can be fluidly connected to both the adjusting inlet and the adjusting outlet 42 (specifically, the inlet of the low-flow valve 44 is fluidly connected to the adjusting inlet 41, while the outlet is fluidly connected to the adjusting outlet 42). CO entering through the adjusting inlet 41 passes through the low-flow valve 44 and is output through the adjusting outlet 42. In this way, the high-flow-rate valve 43 allows CO gas to enter the test chamber 3 quickly, enabling the CO concentration in the test chamber 3 to quickly reach the preset test value, thus improving test efficiency. At the same time, the low-flow-rate valve 44 allows the CO concentration in the test chamber 3 to accurately reach the preset test value, thus improving the accuracy of the test results.

[0026] In this invention, the high-flow valve 43 refers to a flow valve with a fixed high flow rate, while the low-flow valve 44 refers to a flow valve with a fixed low flow rate. In this embodiment, the flow rate of the high-flow valve 43 is 500 ml / min, and the flow rate of the low-flow valve 44 is 10 ml / min. In this embodiment, the external gas source is a 300 ppm CO standard gas cylinder.

[0027] Preferably, in the initial stage of the test, the high-flow valve 43 is fluidly connected to the adjusting inlet 41 and the adjusting outlet 42. When the CO concentration in the test chamber 3 approaches 200 ppm, the valve is switched to a low-flow valve 44, which is fluidly connected to the adjusting inlet 41 and the adjusting outlet 42, until the CO concentration in the test chamber 3 reaches 200 ppm (the 200 ppm test concentration is set to test whether the test plug can normally display green when it is below the alarm concentration value). Then, the valve is switched back to the high-flow valve 43, which is fluidly connected to the adjusting inlet 41 and the adjusting outlet 42. When the CO concentration in the test chamber 3 approaches 500 ppm, the valve is switched back to the low-flow valve 44, which is fluidly connected to the adjusting inlet 41 and the adjusting outlet 42, until the CO concentration in the test chamber 3 reaches 500 ppm.

[0028] In the initial stage of this test, the CO concentration in test chamber 3 is rapidly increased using the high-flow valve 43. When the CO concentration approaches 200 ppm, the low-flow valve 44 is used to precisely bring the CO concentration to 200 ppm. At this point, observe whether the indicator light on the test plug 2 is green. Then, the high-flow valve 43 is used again to rapidly increase the CO concentration in test chamber 3. When the CO concentration approaches 500 ppm, the low-flow valve 44 is used to precisely bring the CO concentration to 500 ppm. At this point, observe whether the indicator light on the test plug 2 is red, and the buzzer sounds an alarm. It is evident that this setup improves test efficiency and helps ensure the accuracy of test results. More preferably, the flow regulator 4 also includes a control switch 45 for manually controlling the opening and closing of the low-flow valve 44. Manually controlling the opening and closing of the low-flow valve 44 via the control switch 45 allows the CO concentration in test chamber 3 to better reach the preset test concentration, thereby better ensuring the accuracy of the test results.

[0029] Furthermore, it also includes an exhaust structure 5, which includes an exhaust chamber 51 having an air inlet (not shown) and an air outlet 511 (in this embodiment, the exhaust chamber 51 has a window 512 on its front, which is sealed by a transparent plate). The air inlet is in fluid communication with the exhaust outlet (not shown) of the test chamber 3. It also includes an intake valve 53 for controlling the opening and closing of the air inlet and an exhaust valve 54 for controlling the opening and closing of the exhaust outlet 511. After the test, the CO in the test chamber 3 is discharged through the exhaust structure 5 to prevent the CO in the test chamber 3 from directly hitting the operator and causing harm when the test plug 2 is directly removed from the test chamber 3.

[0030] Preferably, the exhaust structure 5 further includes an exhaust fan 52, which drives the gas in the exhaust chamber 51 to be discharged through the outlet 511. The exhaust fan 52 accelerates the discharge rate of CO entering the exhaust chamber 51, thereby accelerating the emission rate of CO in the test chamber 3. More preferably, the outlet 511 is connected to an exhaust pipe (not shown) leading to the outside, so that the CO gas used in the test can be discharged outdoors after the test, better protecting the operator's safety.

[0031] The testing equipment of this utility model also includes a vertically extending host 1. The aforementioned test chamber 3, flow regulator 4, and exhaust structure 5 are arranged sequentially from top to bottom on the host 1, thereby improving the overall integrity of the testing equipment.

[0032] Furthermore, the aforementioned test chamber 3 is equipped with a CO detector 33 for monitoring the CO concentration inside the test chamber 3. The CO detector 33 enables real-time monitoring of the CO concentration in the test chamber 3. In addition, the aforementioned test chamber 3 is equipped with a circulating fan 32, which promotes the circulation and mixing of gas in the test chamber 3, thereby ensuring a uniform distribution of CO gas within the test chamber 3. This helps to ensure the accuracy of CO concentration monitoring in the test chamber 3, and consequently, the accuracy of the plug 2 performance test results. Preferably, there is a certain distance between the circulating fan 32 and the CO detector 33, thus preventing the CO detector 33 from being too close to the circulating fan 32 and affecting the accuracy of the monitoring results.

[0033] Furthermore, the aforementioned test chamber 3 has a viewing window 30 for observing the test plug 2 during the test, which is sealed with a transparent plate (e.g., glass). The viewing window 30 facilitates observation of the color displayed by the indicator light on the test plug 2 during the test, while sealing the viewing window 30 prevents CO leakage from the test chamber 3 during the test. CO leakage not only poses a safety hazard to the operator but also affects the accuracy of the test results.

[0034] The testing equipment in this invention can be controlled by a voice module, which is equipped with a controller, a voice receiving module, and a voice parsing module. The voice receiving module receives user commands, and the voice parsing module parses the commands. Based on the parsed commands, the controller controls the testing equipment to perform corresponding operations, thereby realizing intelligent control of the testing equipment and improving the operator's operating experience.

[0035] The term "fluid connectivity" as used in this utility model refers to the spatial relationship between two components or parts (hereinafter referred to as the first part and the second part, respectively), that is, a fluid (gas, liquid, or a mixture of both) can flow from the first part along a flow path and / or be transported to the second part. This can be a direct connection between the first part and the second part, or an indirect connection between the first part and the second part through at least one third party. The third party can be a fluid channel such as a pipe, channel, conduit, guide, hole, or groove, or a chamber or combination thereof that allows fluid to flow through.

Claims

1. A test apparatus for testing the performance of a plug with a CO alarm function, characterized in that, The test chamber (3) includes a test plug (2) and a test air inlet (31), and a flow regulator (4) having an adjustment air inlet (41), an adjustment air outlet (42), a large flow valve (43), and a small flow valve (44). The adjustment air inlet (41) is used to connect to an external CO gas source, and the adjustment air outlet (42) is used to output the adjusted CO gas flow and to be fluidly connected to the test air inlet (31). During the test, one of the large flow valve (43) and the small flow valve (44) is selected to be fluidly connected to the adjustment air inlet (41) and the adjustment air outlet (42).

2. The testing equipment for testing the performance of a plug with CO alarm function as described in claim 1, characterized in that, In the initial stage of the test, the high-flow valve (43) is fluidly connected to the adjusting inlet (41) and the adjusting outlet (42); when the CO concentration in the test chamber (3) approaches 200 ppm, the low-flow valve (44) is fluidly connected to the adjusting inlet (41) and the adjusting outlet (42); until the CO concentration in the test chamber (3) reaches 200 ppm, the high-flow valve (43) is fluidly connected to the adjusting inlet (41) and the adjusting outlet (42); when the CO concentration in the test chamber (3) approaches 500 ppm, the low-flow valve (44) is fluidly connected to the adjusting inlet (41) and the adjusting outlet (42) until the CO concentration in the test chamber (3) reaches 500 ppm.

3. The testing equipment for testing the performance of a plug with a CO alarm function as described in claim 2, characterized in that, The flow regulator (4) also has a control switch (45) for manually controlling the opening and closing of the small flow valve (44).

4. The testing equipment for testing the performance of a plug with a CO alarm function as described in claim 1, 2, or 3, characterized in that, It also includes an exhaust structure (5), which includes an exhaust chamber (51) having an air inlet and an air outlet (511), wherein the air inlet is in fluid communication with the exhaust outlet of the test chamber (3), and also includes an air inlet valve (53) for controlling the opening and closing of the air inlet and an air outlet valve (54) for controlling the opening and closing of the air outlet (511).

5. The testing equipment for testing the performance of a plug with a CO alarm function as described in claim 4, characterized in that, The exhaust structure (5) also includes an exhaust fan (52) for driving the gas in the exhaust chamber (51) to be discharged through the outlet (511).

6. The testing equipment for testing the performance of a plug with a CO alarm function as described in claim 4, characterized in that, An exhaust pipe leading to the outside is connected to the air outlet (511).

7. The test apparatus for testing the performance of a plug with a CO alarm function as described in claim 1, 2, or 3, characterized in that, The test chamber (3) is equipped with a CO detector (33) for monitoring the CO concentration inside the test chamber (3).

8. The testing equipment for testing the performance of a plug with a CO alarm function as described in claim 7, characterized in that, The test chamber (3) is equipped with a circulating fan (32).

9. The testing equipment for testing the performance of a plug with a CO alarm function as described in claim 8, characterized in that, There is a certain distance between the circulating fan (32) and the CO detector (33).

10. The test apparatus for testing the performance of a plug with a CO alarm function as described in claim 1, 2, or 3, characterized in that, The test chamber (3) has a viewing window (30) for observing the test plug (2) during the test, the viewing window (30) being sealed with a transparent plate.

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