Fresh air testing device

Abstract

The utility model discloses a fresh air testing device, and belongs to the technical field of environment detection and cleaning. The fresh air testing device comprises a support, the support comprises a base and a lifting rod installed on the base, and the lifting rod comprises a plurality of telescopic pipes which are sequentially connected in the vertical direction; an air inlet of the cleanliness detector is used for facing an air outlet of the fresh air system; wherein the cleanliness detector is installed on the telescopic pipe located on the uppermost layer, and the multiple sections of telescopic pipes are configured to be capable of relatively sliding so as to adjust the height of the cleanliness detector. Through simple telescopic adjustment of the lifting rod, the efficiency of testing work is improved, the falling risk caused by ascending and descending is reduced, and the safety of the testing process is remarkably improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of environmental detection and cleaning technology, and particularly relates to a fresh air testing device. BACKGROUND

[0002] In some places with extremely high requirements for air cleanliness, such as clean workshops, laboratories, operating rooms, etc., high-efficiency fresh air systems and precise filtering devices, such as high-efficiency filters, are usually used to effectively remove dust and microorganisms in the air. In these clean rooms, the air outlet of the fresh air system is usually set high to facilitate better distribution and mixing of fresh air, however, this design brings challenges to the mass testing of dust particles in fresh air.

[0003] In the related art, the operator needs to use a ladder or other climbing tools to climb to the top to approach the air outlet of the fresh air system for sampling and detection. However, using this method not only has low work efficiency, but also has the risk of falling from climbing, which seriously threatens the personal safety of the operator. CONTENT OF THE UTILITY MODEL

[0004] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application provides a fresh air testing device, which improves the efficiency of testing work, reduces the risk of falling due to climbing and lowering, and improves the safety of the testing process.

[0005] In a first aspect, the present application provides a fresh air testing device, comprising:

[0006] a support, the support comprising a base and a lifting rod mounted on the base, the lifting rod comprising a plurality of telescopic tubes connected in sequence along the vertical direction;

[0007] a cleanliness detector, the air inlet of the cleanliness detector being used to face the air outlet of the fresh air system; wherein the cleanliness detector is mounted on the telescopic tube at the uppermost layer, and the plurality of telescopic tubes are configured to be relatively slidable to adjust the height of the cleanliness detector.

[0008] According to the fresh air testing device of the present application, the required testing height can be quickly reached by simply adjusting the telescopic lifting rod, avoiding the cumbersome process of using a ladder or other climbing tools, significantly improving the efficiency of testing work, and at the same time, the operator does not need to climb and lower, reducing the risk of falling due to climbing and lowering, significantly improving the safety of the testing process, and since the air inlet of the cleanliness detector is close to the air outlet of the fresh air system, the testing data is more accurate and reliable, close to the true value, in addition, through the relative sliding of the plurality of telescopic tubes, the user can easily adjust the height of the cleanliness detector to adapt to the air outlet of the fresh air system at different heights, thereby increasing the flexibility and applicability of the fresh air testing device.

[0009] According to one embodiment of the present application, the lifting rod further comprises:

[0010] A self-locking mechanism is installed at the sleeving position between two adjacent sections of the telescopic tube, configured to allow the upper telescopic tube to slide relative to the lower telescopic tube in the corresponding two sections of the telescopic tube in the unlocked state, and lock the upper telescopic tube in the current position in the locked state.

[0011] According to one embodiment of the present application, in the two adjacent sections of the telescopic tube, the lower telescopic tube is sleeved outside the upper telescopic tube, and the diameter of the telescopic tube gradually decreases from bottom to top.

[0012] According to one embodiment of the present application, the fresh air testing device further comprises:

[0013] A driving mechanism is installed in the base, and the output end of the driving mechanism is connected with the lifting rod.

[0014] According to one embodiment of the present application, the fresh air testing device further comprises:

[0015] A triggering mechanism is electrically connected with the driving mechanism.

[0016] According to one embodiment of the present application, the fresh air testing device further comprises:

[0017] A remote control device, and the triggering mechanism is integrated in the remote control device.

[0018] According to one embodiment of the present application, the triggering mechanism is integrated in the support.

[0019] According to one embodiment of the present application, the base comprises:

[0020] A supporting leg, and the lifting rod is supported on the supporting leg.

[0021] A universal wheel is installed at the bottom of the supporting leg.

[0022] According to one embodiment of the present application, the support further comprises:

[0023] An installation platform is horizontally arranged at the top of the lifting rod, and the upper surface of the installation platform is provided with a first connecting structure, and the lower surface of the cleanliness detector is provided with a second connecting structure for detachably connecting with the first connecting structure.

[0024] According to one embodiment of the present application, the cleanliness detector comprises:

[0025] a timer and a processor, the timer and the processor are electrically connected, the processor is configured to send a first instruction for indicating starting timing to the timer when the cleanliness detector starts collecting fresh air, and the timer is configured to send a second instruction for indicating stopping collection to the processor when the timing reaches a target time length.

[0026] According to an embodiment of the present application, the cleanliness detector comprises:

[0027] a display screen, which is electrically connected with the processor.

[0028] Additional aspects and advantages of the present application will be in part apparent and in part explicit herein below in the description. BRIEF DESCRIPTION OF DRAWINGS

[0029] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description, taken in conjunction with the accompanying drawings, in which:

[0030] Figure 1 is a structural schematic diagram of a fresh air testing device provided by an embodiment of the present application;

[0031] Figure 2 is a structural schematic diagram of a lifting rod provided by an embodiment of the present application;

[0032] Figure 3 is a structural schematic diagram of a cleanliness detector provided by an embodiment of the present application.

[0033] Reference Signs:

[0034] a fresh air testing device 10;

[0035] a support 11, a base 111, a supporting leg 1111, a universal wheel 1112, a lifting rod 112, an extension tube 1121, a self-locking mechanism 1122, and a mounting platform 113;

[0036] a cleanliness detector 12, an air inlet 121, and a display screen 122;

[0037] a remote control device 13. DETAILED DESCRIPTION

[0038] The embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary only, and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0039] The present application provides a fresh air testing device 10.

[0040] The fresh air testing device 10 can be applied to places with extremely high requirements for air cleanliness, specifically but not limited to clean workshops, laboratories, operating rooms, etc., which are not limited here.

[0041] The following refers to Figures 1-3 The fresh air testing device 10 according to the embodiments of the present application is described.

[0042] In some embodiments, as Figure 1 shown, the fresh air testing device 10 comprises a bracket 11 and a cleanliness detector 12.

[0043] As Figure 1 and Figure 2 shown, the bracket 11 comprises a base 111 and a lifting rod 112 mounted on the base 111, the lifting rod 112 comprising multiple sections of telescopic tubes 1121 connected in sequence along the vertical direction; the air inlet 121 of the cleanliness detector 12 is used to face the air outlet of the fresh air system; wherein the cleanliness detector 12 is mounted on the telescopic tube 1121 at the uppermost layer, and the multiple sections of telescopic tubes 1121 are configured to be relatively slidable to adjust the height of the cleanliness detector 12.

[0044] The base 111 serves as the base part of the bracket 11, providing stability and support. The base 111 is usually designed as a structure that is solid and heavy enough to maintain the stability of the entire testing device during operation.

[0045] The lifting rod 112 is composed of multiple sections of telescopic tubes 1121, and multiple sections means two or more sections, for example, in some embodiments, as Figure 1 and Figure 2 shown, the lifting rod 112 comprises three sections of telescopic tubes 1121 connected in sequence along the vertical direction.

[0046] The multiple sections of telescopic tubes 1121 are connected in sequence through a specific connection mechanism, forming a continuous telescopic structure that allows the entire cleanliness detector 12 to be lifted and lowered in the vertical direction.

[0047] The telescopic tube 1121 can be a round tube, a square tube, or other shaped tubes, which are not limited here.

[0048] For example, in some embodiments, the telescopic tube 1121 is designed as a round tube.

[0049] Wherein, the adjustment mode of the lifting rod 112 can be manual, electric or pneumatic, etc., which are not limited here.

[0050] As Figure 3As shown, the cleanliness detector 12 is a device for measuring the number and size of dust particles in the air. The air inlet 121 of the cleanliness detector 12 is usually designed to be small and precise, so it can accurately capture the air quality output by the fresh air system.

[0051] It can be understood that the uppermost telescopic pipe 1121 can be provided with a mounting rack or fixing device for securely mounting the cleanliness detector 12 at the top end of the lifting rod 112. In this way, when the height of the uppermost telescopic pipe 1121 changes, the cleanliness detector 12 can move accordingly, thereby achieving air cleanliness detection at different heights of the fresh air system outlet. This design allows the support 11 to be flexibly adjusted according to the different heights of the fresh air system outlet, meeting the needs of different test scenarios. Specifically, taking the application of the fresh air test device 10 in a clean workshop as an example, when the fresh air system in the clean workshop has multiple outlets at different heights, the operator can adjust the telescopic pipe 1121 to the corresponding height at the first outlet, move the fresh air test device 10 to the second outlet after testing, and then adjust the telescopic pipe 1121 again to match the second outlet. In this way, the operator does not need to repeatedly climb up and down, saving the operation time required for the entire clean workshop test and avoiding the safety risks brought by climbing up and down.

[0052] It should be noted that the telescopic length range of the lifting rod 112 can be adaptively designed according to the actual use scenario, and the present application does not limit this.

[0053] The fresh air test device 10 provided by the embodiment of the present application can quickly reach the required test height by simply adjusting the telescopic length of the lifting rod 112, avoiding the cumbersome process of using a ladder or other climbing tools, significantly improving the efficiency of the test work, and at the same time, the operator does not need to climb up and down, reducing the risk of falling caused by climbing up and down, significantly improving the safety of the test process. In addition, since the air inlet of the cleanliness detector 12 is close to the outlet of the fresh air system, the test data is more accurate and reliable, close to the true value. Furthermore, by relative sliding of the multiple telescopic pipes 1121, the user can easily adjust the height of the cleanliness detector 12 to adapt to the outlets of fresh air systems at different heights, thereby increasing the flexibility and applicability of the fresh air test device 10.

[0054] In some embodiments, as shown in Figure 1 and Figure 2 The lifting rod 112 further comprises a self-locking mechanism 1122.

[0055] As shown in Figure 1 and Figure 2As shown, the self-locking mechanism 1122 is installed at the sleeving position between two adjacent telescopic tubes 1121, and is configured to allow the upper telescopic tube 1121 to slide relative to the lower telescopic tube 1121 in the unlocked state, and lock the upper telescopic tube 1121 in the current position in the locked state.

[0056] In this embodiment, as shown in Figure 1 and Figure 2 , each telescopic tube 1121 except the uppermost telescopic tube 1121 is provided with a self-locking mechanism 1122 at the upper end thereof for locking or unlocking operation with the previous telescopic tube 1121. The self-locking mechanism 1122 has two states of unlocking and locking. In the unlocked state, the self-locking mechanism 1122 allows the upper telescopic tube 1121 to slide relative to the lower telescopic tube 1121, thereby achieving height adjustment. In the locked state, the self-locking mechanism 1122 can lock the upper telescopic tube 1121 in the current position, so that the adjacent two telescopic tubes 1121 cannot slide relative to each other.

[0057] The self-locking mechanism 1122 can be, but is not limited to, a rotary bidirectional self-locking mechanism, a pressing type elastic self-locking mechanism, a handrail gravity self-locking mechanism, or a vertical numerical control machine tool Z-axis anti-falling self-locking mechanism, etc., which is not limited here.

[0058] The new air testing device 10 provided by the embodiment has the self-locking mechanism 1122, so that the lifting rod 112 can be quickly locked after being adjusted to the required height, reducing the shaking or falling of the telescopic tube 1121 due to wind force, accidental touch, etc. The stability of the new air testing device 10 is improved, the safety and accuracy during the test are maintained, the wear of the telescopic tube 1121 is reduced, and the service life of the telescopic tube 1121 is prolonged since the telescopic tube 1121 does not need to be frequently adjusted and slid.

[0059] In some embodiments, as shown in Figure 1 and Figure 2 , the lower telescopic tube 1121 of the two adjacent telescopic tubes 1121 is sleeved outside the upper telescopic tube 1121, and the diameters of the telescopic tubes 1121 decrease from bottom to top.

[0060] As shown in Figure 1 and Figure 2 , Figure 1 the lifting rod 112 is elongated to the maximum height, Figure 2The plurality of telescopic tubes 1121 form a nested structure in the vertical direction, so that the entire lifting rod 112 is more compact, and when the fresh air testing device 10 is idle without testing task, it can be retracted for convenient storage, occupies small space, and is easy to carry. During manufacturing, the diameter of each telescopic tube 1121 gradually decreases from bottom to top, so that the telescopic tube 1121 on the upper layer gradually lightens in weight while maintaining the stability of the entire lifting rod 112, and the design of decreasing diameter also helps to reduce the use of materials and reduce costs.

[0061] The fresh air testing device 10 provided by the embodiment of the application has the following advantages. The telescopic tube 1121 on the lower layer is sleeved with the telescopic tube 1121 on the upper layer, the entire lifting rod 112 is compact in overall shape when not unfolded, the space utilization of the fresh air testing device 10 is improved, storage and transportation are facilitated, the design of decreasing diameter helps to maintain the stability of the lifting rod 112, the telescopic tube 1121 on the lower layer has a larger diameter and can provide better support, the weight of the telescopic tube 1121 on the upper layer decreases with the decrease of the diameter, the stability of the entire lifting rod 112 is maintained, the use of materials is reduced, and the manufacturing cost is reduced.

[0062] In some embodiments, the fresh air testing device 10 further comprises a driving mechanism.

[0063] The driving mechanism is installed in the base 111, and an output end of the driving mechanism is connected with the lifting rod 112.

[0064] The driving mechanism can adopt various forms, such as a motor, a servo motor or an air cylinder, and a suitable driving mode is selected according to specific requirements to realize accurate control of the lifting rod 112.

[0065] In actual implementation, the output end of the driving mechanism can be connected with the lifting rod 112 through a mechanical coupling, so that the power of the driving mechanism can be effectively transmitted to the lifting rod 112, and then the lifting function of the lifting rod 112 is realized. The driving mechanism can be equipped with a control system, such as a programmable logic controller, for controlling the start, stop and speed adjustment of the driving mechanism, so as to realize accurate control of the lifting rod 112 and improve the flexibility and reliability of operation.

[0066] The fresh air testing device 10 provided by the embodiment of the application has the following advantages. The telescopic tube 1121 on the lower layer is sleeved with the telescopic tube 1121 on the upper layer, the entire lifting rod 112 is compact in overall shape when not unfolded, the space utilization of the fresh air testing device 10 is improved, storage and transportation are facilitated, the design of decreasing diameter helps to maintain the stability of the lifting rod 112, the telescopic tube 1121 on the lower layer has a larger diameter and can provide better support, the weight of the telescopic tube 1121 on the upper layer decreases with the decrease of the diameter, the stability of the entire lifting rod 112 is maintained, the use of materials is reduced, and the manufacturing cost is reduced.

[0067] In some embodiments, the fresh air testing device 10 further comprises a trigger mechanism.

[0068] The trigger mechanism is electrically connected with the driving mechanism.

[0069] The trigger mechanism can be a manual button, a foot switch, an infrared sensor, or a wireless remote control, etc., and the appropriate trigger mode is selected according to the actual application scenario and the operation convenience.

[0070] In actual implementation, the trigger mechanism and the driving mechanism can be connected through an electrical line, which can be a direct hard-wired connection or a wireless signal transmission. In wired connection, the output end of the trigger mechanism is connected to the input end of the driving mechanism through a cable, forming a closed control loop. After receiving the start signal, the trigger mechanism sends a control signal to the driving mechanism through electrical connection, and the driving mechanism starts after receiving the signal, realizing the lifting action of the lifting rod 112.

[0071] The fresh air testing device 10 provided by the embodiments of the present application introduces the trigger mechanism, which can easily start the driving mechanism for the operator, increasing the operation convenience, and the electrical connection between the trigger mechanism and the driving mechanism makes the testing process more automated, reducing the need for manual intervention and improving the testing efficiency and accuracy.

[0072] The embodiments of the present application will be described in detail from two different implementation angles respectively.

[0073] I. In some embodiments, as shown in FIG. 1, the fresh air testing device 10 further comprises a remote control device 13, and the trigger mechanism is integrated in the remote control device 13. Figure 1

[0074] In this implementation, the trigger mechanism is integrated in the remote control device 13, and the remote control device 13 not only sends control signals, but also is responsible for receiving the instructions of the operator and converting them into electrical signals to control the start and stop of the driving mechanism. Specifically, the remote control device 13 can be connected with the control system of the driving mechanism through wireless signal or wired connection. In wireless connection, the signal sent by the remote control device 13 can be captured by the receiver of the driving mechanism, and then converted into an electrical signal to control the driving mechanism. The remote control device 13 can be equipped with an operation interface, such as a button, a knob, or a touch screen, etc., so that the operator can conveniently perform remote control.

[0075] ​The fresh air testing device 10 provided by the embodiment of the present application, through the use of the remote control device 13, on the one hand, the operator can control from a place far away from the fresh air testing device 10, improving the convenience of operation, on the other hand, through remote control, the operator does not need to approach the test area which may have risks, improving the safety of operation, and on the other hand, the remote control device 13 can be placed at different positions as needed, providing greater operation flexibility.

[0076] II. In some embodiments, the trigger mechanism is integrated into the support 11.

[0077] In this embodiment, the trigger mechanism can be a button, a sensor or other electronic control element, and the trigger mechanism can be directly installed or embedded in a suitable position of the support 11, such as the base 111 or the lifting rod 112. Such design makes the trigger mechanism form an integral whole with the support 11, facilitating integrated control and operation, without affecting the supporting function of the support 11 or occupying additional space.

[0078] The fresh air testing device 10 provided by the embodiment of the present application, through the design of the trigger mechanism integrated into the support 11, on the one hand, the whole fresh air testing device 10 is more compact and integrated, reducing additional control lines and components, thereby reducing production cost, on the other hand, reducing the interference of external environment to the control signal, improving the stability and reliability of control, and on the other hand, the operator does not need to disassemble too many parts when maintaining and maintaining, reducing the complexity and cost of maintenance.

[0079] In some embodiments, as shown in Figure 1 The base 111 includes a support leg 1111 and a universal wheel 1112.

[0080] The lifting rod 112 is supported on the support leg 1111, and the universal wheel 1112 is installed at the bottom of the support leg 1111.

[0081] The support leg 1111 can be made of a sturdy material such as metal or plastic, and in actual design, the support leg 1111 can be designed into a shape with high stability, such as a triangle or a quadrilateral.

[0082] The connection between the lifting rod 112 and the support leg 1111 can include but is not limited to bolt connection, clamping or welding, etc., which is not limited here.

[0083] The universal wheel 1112 is a wheel that can rotate in all directions, usually including hub, bearing, tire and brake device, etc. The universal wheel 1112 can easily move on various ground and adapt to different directions and angles.

[0084] The universal wheels 1112 can be installed at the bottom of the supporting legs 1111 and directly contact the ground. By operating the universal wheels 1112, a user can easily move the fresh air testing device 10 from one testing site to another until all tests are completed, lower the lifting rod 112 and the cleanliness tester, and record the test data of the cleanliness tester. The rotation and braking functions of the universal wheels 1112 enable an operator to adjust the direction and speed of the fresh air testing device 10 as needed and stop the fresh air testing device 10 at any time to avoid accidental collisions.

[0085] The universal wheels 1112 can be provided in multiple numbers, and the multiple universal wheels 1112 are installed separately at the bottom of the supporting legs 1111. The multiple numbers refer to two or more.

[0086] For example, in some embodiments, as shown in Figure 1 The base 111 includes two universal wheels 1112.

[0087] The fresh air testing device 10 provided by the embodiments of the present application can be easily moved on various ground surfaces through the design of the universal wheels 1112 introduced above, improving the flexibility and adaptability of the fresh air testing device 10. An operator can move the fresh air testing device 10 to different testing sites at any time as needed without manually carrying the entire device, reducing labor intensity and improving work efficiency. In combination with the design of the supporting legs 1111, stable support is provided for the lifting rod 112, maintaining the stability and safety of the lifting rod 112 during the testing process and reducing the risk of tilting or toppling of the lifting rod 112 during use.

[0088] In some embodiments, as shown in Figure 1 The bracket 11 further includes an installation platform 113.

[0089] As shown in Figure 1 The installation platform 113 is horizontally arranged at the top of the lifting rod 112. The upper surface of the installation platform 113 is provided with a first connecting structure, and the lower surface of the cleanliness tester 12 is provided with a second connecting structure for detachable connection with the first connecting structure.

[0090] The installation platform 113 is a structure horizontally arranged at the top of the lifting rod 112 for carrying and fixing the cleanliness tester 12.

[0091] As shown in Figure 1 The installation platform 113 provides a stable support surface, enabling the cleanliness tester 12 to be stably installed thereon, so that the cleanliness tester 12 will not affect the test results due to shaking or tilting during the testing process.

[0092] The connection between the first connection structure and the second connection structure can include, but is not limited to, threaded connection, clamping, or pin shaft connection, and the like, which is not limited herein.

[0093] Exemplarily, the connection between the first connection structure and the second connection structure can be threaded connection.

[0094] In this embodiment, the first connection structure can be a stud with external threads, and the second connection structure can be a threaded hole. Specifically, the upper surface of the mounting platform 113 can be provided with a stud with external threads protruding upward, and the lower surface of the cleanliness detector 12 can be provided with an internally threaded hole.

[0095] In other embodiments, the first connection structure can be a threaded hole, and the second connection structure can be a stud with external threads. Specifically, the upper surface of the mounting platform 113 can be provided with an internally threaded hole, and the lower surface of the cleanliness detector 12 can be provided with a stud with external threads protruding downward.

[0096] The fresh air testing device 10 provided by the embodiment of the present application can keep the cleanliness detector 12 stable during testing by the horizontal arrangement of the mounting platform 113, thereby improving the accuracy of the test, and the first connection structure and the second connection structure can reduce the probability of falling off or displacement due to vibration or external force during testing, and also realize the detachability of the cleanliness detector 12.

[0097] In some embodiments, the cleanliness detector 12 includes a timer and a processor.

[0098] The timer and the processor are electrically connected, and the processor is configured to send a first instruction indicating the start of timing to the timer when the cleanliness detector 12 starts collecting fresh air, and the timer is configured to send a second instruction indicating the stop of collection to the processor when the timing reaches a target duration.

[0099] The timer can be a functional module built in the processor, or an independent electronic device. The timer is responsible for receiving the start timing instruction sent by the processor, and sending the stop collection instruction when the target duration is reached.

[0100] The target duration can be a duration value preset in advance by the operator according to experience or experiment, which is not limited in the present application.

[0101] For example, in some embodiments, the timer can be configured to send a second instruction indicating the stop of collection to the processor when the timing reaches 10 min.

[0102] The processor is the control center of the cleanliness detector 12, which can be a microcontroller or a computer system. The processor is responsible for receiving the instructions of the operator, controlling the start and end of data collection, and processing the collected data.

[0103] The electrical connection between the timer and the processor can be a hard-wired connection or a wireless connection. In a hard-wired connection, a cable is used to connect the timer and the processor; in a wireless connection, a wireless communication module is used for data transmission.

[0104] In actual execution, the processor sends a first instruction to the timer when the cleanliness detector 12 starts collecting fresh air. After receiving the first instruction, the timer starts timing synchronously. When the timer reaches the target time, the timer sends a second instruction to the processor to stop collecting fresh air. After receiving the second instruction, the processor controls the air chamber of the cleanliness detector 12 to stop collecting fresh air.

[0105] The fresh air testing device 10 provided by the embodiment of the present application, through the cooperation of the above-mentioned timer and processor, on the one hand, accurately controls the time of fresh air collection, so that each test is carried out under the same conditions, thereby improving the accuracy and comparability of the test results, on the other hand, the entire test process is completed by the processor and the timer, without manual intervention, improving the automation degree and efficiency of the test, and on the other hand, the operator only needs to set the target time in advance and start the fresh air testing device 10, which can automatically complete the fresh air collection and detection process, and the operation is simple and easy to operate.

[0106] In some embodiments, as shown in Figure 3 The cleanliness detector 12 includes a display screen 122.

[0107] The display screen 122 is electrically connected to the processor.

[0108] The display screen 122 is an important part of the cleanliness detector 12. The display screen 122 is responsible for presenting the data processed by the processor in a visual manner. Specifically, the display screen 122 can be used to display the test results and prompt information. The display screen 122 usually has high definition, good color performance and brightness adjustment function, and can clearly display information under various light conditions.

[0109] In actual execution, the display screen 122 can display the detection results, including the cleanliness level of the fresh air system, the concentration of pollutants and other key data. At the same time, the display screen 122 can also display prompt information, such as device status, operation guide, alarm information, etc., to help the operator better understand the working condition of the device and perform necessary operations. Specifically, when the timer sends a second instruction to the processor to indicate stopping collection after the target time is reached, the processor controls the air chamber of the cleanliness detector 12 to stop collecting fresh air, and synchronously sends a signal to the display screen 122 to prompt the end of collection. After receiving the signal, the display screen 122 can present the prompt information of the end of collection in a visual way to prompt the operator to lower the lifting rod 112 and the cleanliness tester, and prepare for the next test operation at the test site.

[0110] It should be noted that the display screen 122 can also be configured with data recording and export functions, specifically, the detection results are saved and transmitted in electronic form, which is convenient for subsequent data analysis and recording.

[0111] The fresh air testing device 10 provided by the embodiment of the present application can display the detection results in real time through the functional configuration design of the display screen 122, so that the operator can immediately understand the state of the fresh air system, improving the real-time operation and response speed. At the same time, the display screen 122 can provide operation guidance and error prompt information to help the operator orderly promote the test process and correctly use the equipment, reducing operation errors. In addition, through the visual interface of the display screen 122, the operator can more easily understand and operate the cleanliness detector 12, improving the experience.

[0112] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally of a kind and do not limit the number of objects, for example, the first object can be one or more. In addition, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / ", generally indicates that the objects before and after are in a "or" relationship.

[0113] In the description of the application, it should be understood that the terms "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown by the drawings, and are only used to facilitate the description of the application and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application.

[0114] In the description of the application, "first feature", "second feature" can include one or more of the features.

[0115] In the description of the application, "a plurality of" means two or more.

[0116] In the description of the application, the first feature "above" or "below" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them.

[0117] In the description of the application, the first feature "above", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height.

[0118] Other configurations of … according to embodiments of the application, such as … and …, and operations are known to those skilled in the art, and are not described in detail here.

[0119] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0120] Although embodiments of the application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and purposes of the application, and the scope of the application is defined by the claims and their equivalents.

Claims

1. A fresh air testing device, characterized in that, The device comprises: a bracket, which comprises a base and a lifting rod mounted on the base, the lifting rod comprising multiple telescopic tubes connected in vertical sequence; a cleanliness detector, an air inlet of which is used to face an air outlet of a fresh air system; wherein the cleanliness detector is mounted on the telescopic tube at the uppermost layer, and the multiple telescopic tubes are configured to be relatively slidable to adjust the height of the cleanliness detector.

2. The fresh air testing device of claim 1, wherein, The lifting rod further comprises: a self-locking mechanism, which is mounted at a sleeving position between two adjacent telescopic tubes, and is configured to allow the telescopic tube at the upper layer to slide relative to the telescopic tube at the lower layer in the corresponding two telescopic tubes in an unlocked state, and lock the telescopic tube at the upper layer in the corresponding two telescopic tubes at the current position in a locked state.

3. The fresh air testing device of claim 1, wherein, In the two adjacent telescopic tubes, the telescopic tube at the lower layer is sleeved outside the telescopic tube at the upper layer, and the diameters of the multiple telescopic tubes decrease in sequence from bottom to top.

4. The fresh air testing device of claim 1, wherein, Further comprising: a driving mechanism, which is mounted in the base, and an output end of which is used to be connected with the lifting rod.

5. The fresh air testing device of claim 4, wherein, Further comprising: a triggering mechanism, which is electrically connected with the driving mechanism.

6. The fresh air testing device according to claim 5, characterized in that, the fresh air testing device further comprises a remote control device, and the triggering mechanism is integrated in the remote control device; or, the triggering mechanism is integrated in the bracket.

7. The fresh air testing device according to any one of claims 1-6, wherein, The base comprises: a supporting leg, and the lifting rod is supported on the supporting leg; a universal wheel, which is mounted at the bottom of the supporting leg.

8. The fresh air testing device according to any one of claims 1-6, wherein, The bracket further comprises: a mounting platform, which is horizontally arranged at the top of the lifting rod, and an upper surface of the mounting platform is provided with a first connecting structure, and a lower surface of the cleanliness detector is provided with a second connecting structure used to be detachably connected with the first connecting structure.

9. The fresh air testing device according to any one of claims 1-6, wherein, The cleanliness detector comprises: a timer and a processor, which are electrically connected, and the processor is configured to send a first instruction indicating starting timing to the timer when the cleanliness detector starts collecting fresh air, and the timer is configured to send a second instruction indicating stopping collection to the processor when the timing reaches a target duration.

10. The fresh air testing device of claim 9, wherein, The cleanliness detector further comprises: a display screen, which is electrically connected with the processor.

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