An air filter performance detection device
Patent Information
- Application Number
- CN202521971493.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-13
- Publication Date
- 2026-08-18
- Estimated Expiration
- 2035-09-13
AI Technical Summary
[0003]在对空气过滤器进行性能检测时,需要将空气过滤器定位安装在导气通道处,在安装过程中由于空气过滤器的规格不易确定,这就造成对其定位安装较为不便,影响检测效果
[0016]Firstly, this invention provides a closed testing space through a testing chamber, a smoke generator produces testing smoke, a one-way connecting pipe maintains stable air pressure inside the testing chamber, and air inlets on the side plates form airflow channels. The blowing component drives the airflow through the air filter to be tested at the air inlet, a support plate supports the bottom of the filter, and a clamping component presses the filter against the filter from both sides. The cooperation of these components allows for the quick positioning and installation of air filters of different specifications, achieving stable testing of the filter's filtration performance and improving the device's adaptability to different filter specifications and testing efficiency.
Smart Images

Figure CN224651152U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air filter performance testing technology, specifically an air filter performance testing device. Background Technology
[0002] Air filters, also known as air filter cartridges, air filter purifiers, and air filters, effectively remove particulate matter, harmful gases, and other pollutants from the air. During the production of air filters, it is necessary to test their performance characteristics, such as filtration efficiency and resistance.
[0003] When performing performance testing on an air filter, it is necessary to position and install the air filter in the air duct. However, the specifications of the air filter are not easy to determine during the installation process, which makes it inconvenient to position and install it, thus affecting the test results. Utility Model Content
[0004] The purpose of this invention is to provide an air filter performance testing device to solve the problems mentioned in the background art.
[0005] The technical solution of this utility model is: an air filter performance testing device, including a testing chamber, a smoke generating platform is provided in the testing chamber, a one-way connecting pipe for air exchange is provided on the top of the testing chamber, a side plate is provided on one side of the testing chamber, an air guide port is provided on the side plate, a blowing component located in the testing chamber is installed on one side of the air guide port, a support plate is provided on the outer side of the bottom end of the side plate, and clamping components for pressing against the air filter to be tested are provided on both sides of the air guide port.
[0006] The aforementioned components achieve the following effects: a closed testing space is provided through the testing chamber; the smoke generator produces testing smoke; the one-way connecting pipe maintains stable air pressure within the testing chamber; the air inlets on the side plates form airflow channels; the blowing component drives airflow through the air filter under test at the air inlets; the support plate supports the bottom of the filter; and the clamping component presses the filter against the filter from both sides. The cooperation of these components allows for the quick positioning and installation of air filters of different specifications, enabling stable testing of filter performance and improving the device's adaptability to different filter specifications and testing efficiency.
[0007] Preferably, the clamping assembly includes an electric telescopic rod installed at the edge of the side plate, the telescopic end of the electric telescopic rod is fixed with a clamping groove plate, a retaining plate is provided on the inner side of the clamping groove plate, and an elastic connector is connected between the retaining plate and the clamping groove plate.
[0008] The effects achieved by the above components are as follows: the electric telescopic rod in the clamping assembly extends and retracts, driving the clamping slot plate to move. The clamping slot plate, through the elastic connector, moves the abutment plate closer to or away from the filter. The electric telescopic rod provides driving force to adjust the clamping distance, and the elastic connector ensures that the abutment plate always elastically presses against the filter, achieving stable clamping of filters of different thicknesses, increasing buffer protection during the clamping process, and preventing the filter from being damaged by rigid clamping.
[0009] Preferably, the top of the abutment plate is provided with a guide end plate that is inclined away from the side plate.
[0010] The effect achieved by the above components is as follows: when placing the filter, the inclined surface of the guide end plate, which is set at the top of the clamping plate, can guide the filter to slide into the clamping position between the clamping plates; this structure, in conjunction with the clamping plate, reduces the difficulty of alignment during filter installation, realizes the quick insertion of the filter, and improves the ease of filter installation.
[0011] Preferably, the elastic connector includes a guide rod connected to the abutment plate, the guide rod passes through the clamping groove plate and is connected to a limit ring, and a spring is sleeved on one end of the guide rod near the abutment plate to abut against the clamping groove plate.
[0012] The effects achieved by the above components are as follows: the guide rod in the elastic connector guides the extension and retraction direction of the spring, the spring provides elastic clamping force, and the limiting ring restricts the guide rod from disengaging from the clamping slot plate; the guide rod and the spring cooperate to ensure that the elastic force acts stably on the clamping plate, and the limiting ring ensures that the structural connection is reliable, thus realizing the stable operation of the elastic connector and increasing the structural durability of the clamping assembly.
[0013] Preferably, an entrance / exit is provided on one side of the testing chamber, and a door is installed at the entrance / exit.
[0014] The aforementioned components achieve the following effects: the entrance / exit on one side of the testing chamber facilitates equipment maintenance, and the entrance / exit can be sealed when the door is closed; the combination of the entrance / exit and the door facilitates operation and ensures the airtightness of the testing chamber, preventing leakage of testing smoke from affecting testing accuracy and improving the stability of the testing environment.
[0015] This utility model provides an improved air filter performance testing device, which has the following improvements and advantages compared with the prior art:
[0016] Firstly, this invention provides a closed testing space through a testing chamber, a smoke generator produces testing smoke, a one-way connecting pipe maintains stable air pressure inside the testing chamber, and air inlets on the side plates form airflow channels. The blowing component drives the airflow through the air filter to be tested at the air inlet, a support plate supports the bottom of the filter, and a clamping component presses the filter against the filter from both sides. The cooperation of these components allows for the quick positioning and installation of air filters of different specifications, achieving stable testing of the filter's filtration performance and improving the device's adaptability to different filter specifications and testing efficiency.
[0017] Secondly, this utility model uses the electric telescopic rod in the clamping assembly to extend and retract, thereby moving the clamping slot plate. The clamping slot plate, through the elastic connector, moves the abutment plate closer to or further away from the filter. The electric telescopic rod provides driving force to adjust the clamping distance, and the elastic connector ensures that the abutment plate always elastically presses against the filter, achieving stable clamping of filters of different thicknesses. This increases the buffer protection during the clamping process and prevents the filter from being damaged by rigid clamping. Attached Figure Description
[0018] The present invention will be further explained below with reference to the accompanying drawings and embodiments:
[0019] Figure 1 This is a first-view three-dimensional structural diagram of the present invention.
[0020] Figure 2 This is a three-dimensional structural diagram of the present invention from a second perspective;
[0021] Figure 3 This is a three-dimensional structural diagram of the clamping component in this utility model.
[0022] Explanation of reference numerals in the attached figures:
[0023] 1. Testing chamber; 2. Door; 3. Smoke generator; 4. One-way connecting pipe; 5. Side plate; 6. Blowing assembly; 7. Support plate; 8. Clamping assembly; 81. Electric telescopic rod; 82. Clamping slot plate; 83. Anchor plate; 84. Guide end plate; 85. Elastic connector; 9. Air inlet. Detailed Implementation
[0024] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.
[0025] This utility model provides an improved air filter performance testing device. The technical solution of this utility model is as follows:
[0026] In embodiments of this utility model, such as Figure 1 - Figure 3 As shown, an air filter performance testing device includes a testing chamber 1. An inlet / outlet is located on one side of the testing chamber 1, and a door 2 is installed at the inlet / outlet. The inlet / outlet facilitates equipment maintenance, and the door 2 seals the inlet / outlet when closed. The inlet / outlet and door 2 work together to facilitate operation and ensure the airtightness of the testing chamber 1, preventing smoke leakage from affecting testing accuracy. A smoke generator 3 is installed inside the testing chamber 1, and a one-way ventilated connecting pipe 4 is installed on the top of the testing chamber 1. The testing chamber 1 provides a closed testing space, and the smoke generator 3 generates... For smoke detection, a one-way connecting pipe 4 maintains stable air pressure inside the detection chamber 1. A side plate 5 is provided on one side of the detection chamber 1, and an air duct 9 is provided on the side plate 5. A blowing assembly 6 located inside the detection chamber 1 is installed on one side of the air duct 9. A support plate 7 is provided on the outer side of the bottom end of the side plate 5. Clamping assemblies 8 for pressing against the air filter to be tested are provided on both sides of the air duct 9. The air duct 9 on the side plate 5 forms an airflow channel. The blowing assembly 6 drives the airflow to flow through the air filter to be tested at the air duct 9. The support plate 7 supports the bottom of the filter, and the clamping assemblies 8 press against the filter from both sides.
[0027] In this embodiment of the present invention, the clamping assembly 8 includes an electric telescopic rod 81 installed at the edge of the side plate 5. A clamping groove plate 82 is fixed to the telescopic end of the electric telescopic rod 81. A pressing plate 83 is provided inside the clamping groove plate 82. An elastic connector 85 connects the pressing plate 83 and the clamping groove plate 82. The electric telescopic rod 81 in the clamping assembly 8 moves the clamping groove plate 82, and the clamping groove plate 82, through the elastic connector 85, moves the pressing plate 83 closer to or further away from the filter. The electric telescopic rod 81 provides driving force to adjust the clamping distance, and the elastic connector 85 ensures that the pressing plate 83 always elastically presses against the filter, achieving stable clamping of filters of different thicknesses. A guide end plate 84 is inclined at the top of the pressing plate 83, moving away from the side plate 5. The guide end plate 84, with its inclined top, guides the filter to slide into the clamping position between the clamping plates 83 when the filter is placed, reducing the difficulty of alignment during filter installation and enabling rapid filter placement. The elastic connector 85 includes a guide rod connected to the clamping plate 83. The guide rod passes through the clamping groove plate 82 and is connected to a limit ring. A spring is fitted on the end of the guide rod near the clamping plate 83, which abuts against the clamping groove plate 82. The guide rod in the elastic connector 85 guides the spring's extension and retraction direction, and the spring provides elastic clamping force. The limit ring prevents the guide rod from disengaging from the clamping groove plate 82. The guide rod and the spring work together to ensure that the elastic force acts stably on the clamping plate 83, and the limit ring ensures reliable structural connection, thus achieving the stable working purpose of the elastic connector 85.
[0028] The working principle of the air filter performance testing device provided by this utility model is as follows:
[0029] Before testing, the air filter to be tested is placed on the tray 7, aligning it with the air inlet 9. At this time, the guide plate 84 at the top of the clamping plate 83 guides the filter to slide into the clamping position through the inclined surface. The electric telescopic rod 81 of the clamping assembly 8 extends, driving the clamping groove plate 82 to move closer to the filter. The elastic force of the spring in the elastic connector 85 (composed of a guide rod, a spring, and a limit ring) pushes the clamping plate 83 to elastically press against both sides of the filter, achieving rapid positioning and stable clamping of the filter.
[0030] Closing the door 2 creates a closed space in the testing chamber 1, and the smoke generator 3 produces testing smoke. The blowing component 6 is activated, driving the airflow in the testing chamber 1 to flow through the air inlet 9 and through the air filter to be tested. During this process, the one-way connecting pipe 4 maintains stable air pressure in the testing chamber 1 through air exchange, preventing abnormal air pressure from affecting the airflow.
[0031] The air filter's filtration performance can be tested by observing or detecting parameters such as the smoke concentration before and after the smoke flows through the filter. After the test is completed, the electric telescopic rod 81 retracts, causing the clamping assembly 8 to release, and the filter can be removed.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An air filter performance testing device, comprising a testing chamber (1), characterized in that: The testing chamber (1) is equipped with a smoke generator (3), and the top of the testing chamber (1) is equipped with a one-way ventilated connecting pipe (4). A side plate (5) is provided on one side of the testing chamber (1), and an air duct (9) is provided on the side plate (5). A blowing assembly (6) located in the testing chamber (1) is installed on one side of the air duct (9). A support plate (7) is provided on the outer side of the bottom end of the side plate (5). Clamping assemblies (8) for pressing against the air filter to be tested are provided on both sides of the air duct (9).
2. The air filter performance testing device according to claim 1, characterized in that: The clamping assembly (8) includes an electric telescopic rod (81) installed at the edge of the side plate (5). The telescopic end of the electric telescopic rod (81) is fixed with a clamping groove plate (82). An abutment plate (83) is provided on the inner side of the clamping groove plate (82). An elastic connector (85) is connected between the abutment plate (83) and the clamping groove plate (82).
3. The air filter performance testing device according to claim 2, characterized in that: The top of the abutment plate (83) is inclinedly provided with a guide end plate (84) in a direction away from the side plate (5).
4. The air filter performance testing device according to claim 2, characterized in that: The elastic connector (85) includes a guide rod connected to the abutment plate (83), the guide rod passes through the clamping groove plate (82) and is connected to a limit ring, and a spring is sleeved on one end of the guide rod near the abutment plate (83) to abut against the clamping groove plate (82).
5. The air filter performance testing device according to claim 1, characterized in that: An entrance / exit is provided on one side of the testing room (1), and a door (2) is installed at the entrance / exit.