Experimental device for air filter

Abstract

The utility model discloses an experimental device for an air filter, relates to the technical field of air filters, and comprises a box body and a box cover, the left side of the box body is fixedly connected with an air inlet pipe in a penetrating manner, the right side of the box body is fixedly connected with an air outlet pipe in a penetrating manner, and the lower surface of the box cover is in lap joint with the upper surface of the box body. According to the utility model, the air filter filtering assembly, the loading and unloading assembly, the L-shaped block, the sleeve, the guide rod, the jacking spring and the stop block are matched with one another, and impurities in air are filtered and intercepted during an experiment through the arrangement of the air filter filtering assembly; after the box cover is used for a long time, a guide rod is pressed and a jacking spring is driven to extrude, so that a stop block is separated from a clamping groove in a sleeve, and then the guide rod is rotated to drive the stop block to enter a strip-shaped groove in the sleeve, so that the box cover is disassembled; through the arrangement of the structure, it is guaranteed that after long-time use, the air filter filtering assembly can be conveniently and rapidly disassembled to be replaced, and the effects of being easy to disassemble and convenient to operate are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of air filters, in particular to an experimental device for air filters. Background Art

[0002] Air filters are air filtration devices, generally used in clean workshops, clean factories, laboratories, and clean rooms, or for dust prevention in electronic machinery and communication equipment. During the production process of air filters, experimental equipment is required to test the filtration efficiency of the filter components of the air filter to ensure that the exhaust air is clean and thus meet the special requirements of air cleanliness. The existing technology has the following problems:

[0003] When the current experimental device is used to test the filter assembly in the air filter, the air filter assembly has a large amount of impurities after long-term use, making it inconvenient for the experimental device to disassemble it, resulting in troublesome and unsophisticated disassembly, and thus inconvenient for subsequent replacement; at the same time, due to the poor sealing performance of the current experimental device, it is inconvenient to conduct experimental tests on the filter assembly in the air filter. Utility Model Content

[0004] The utility model provides an experimental device for an air filter to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] An experimental device for an air filter comprises a box body and a box cover, wherein an air inlet pipe is fixedly connected to the left side of the box body, an air outlet pipe is fixedly connected to the right side of the box body, and the lower surface of the box cover overlaps the upper surface of the box body.

[0007] The filter screen is fixedly connected to the left side of the vertically opposite surface of the U-shaped plate, and the activated carbon plate is fixedly connected to the middle of the vertically opposite surface of the U-shaped plate. The filter cotton is fixedly connected to the right side of the vertically opposite surface of the U-shaped plate. The two loading and unloading assemblies each include an L-shaped block, and the side of the L-shaped block is fixedly connected to the side away from the box in the vertical direction. A guide rod is slidably connected to the middle of the upper surface of the sleeve, and a tightening spring is sleeved above the outer surface of the guide rod, and a circular stopper is fixedly connected to the tightening spring and the upper end of the guide rod.

[0008] A further improvement of the technical solution of the present utility model is that the outer surface of the guide rod passes through the interior of the box cover and is movably connected to each other, the lower end of the tightening spring overlaps the upper surface of the box cover, and a blocking block is fixedly connected to the lower front side of the outer surface of the guide rod.

[0009] A further improvement of the technical solution of the present utility model is that a strip groove communicating with the inside and outside is opened on the side of the outer surface of the sleeve away from the vertical direction of the L-shaped block, and a clamping groove communicating with the inside and outside is opened on the lower front side of the outer surface of the sleeve, and the inside of the clamping groove overlaps with the outer surface of the blocking block.

[0010] A further improvement of the technical solution of the present utility model is that: an extrusion plate is provided on the lower surface of the box cover, first rubber plates are fixedly connected to the left and right sides of the lower surface of the box cover, and second rubber plates are fixedly connected to the front and back sides of the lower surface of the box cover, the height of the second rubber plate is smaller than that of the first rubber plate, and the outer surfaces of the first and second rubber plates are plugged into the upper inner portion of the box cover.

[0011] A further improvement of the technical solution of the present utility model is that the outer surfaces of the first rubber plates on the left and right sides overlap with the inner side of the sleeve, the upper surface of the extrusion plate is fixedly connected to a trapezoidal plate that shrinks inward, the outer surface diameter of the extrusion plate is larger than the inner diameter of the first rubber plate and the second rubber plate, and a movable component is provided on the upper surface of the box cover.

[0012] A further improvement of the technical solution of the present utility model is that: the movable component includes a vertical plate, and a plurality of right-angled triangle blocks are fixedly connected to the left side of the vertical plate. The outer surfaces of the vertical plate and the plurality of right-angled triangle blocks are slidably connected to the middle part of the upper surface of the box cover, and the lower surface of the vertical plate is fixedly connected to the upper surface of the trapezoidal plate in the extrusion plate.

[0013] A further improvement of the technical solution of the present utility model is that: an L-shaped push plate is overlapped on the lower surface of one of the right-angled triangle blocks, an inclined surface is provided on the right side in the horizontal direction of the L-shaped push plate, and three connecting components are fixedly connected to the left side in the vertical direction of the L-shaped push plate, and the three connecting components are respectively composed of a spring and a telescopic shaft, the inner part of the spring is sleeved with the outer surface of the telescopic shaft, and the left ends of the three connecting components are fixedly connected to a plate.

[0014] A further improvement of the technical solution of the present utility model is that: a square opening communicating with each other from top to bottom is opened on the right side of the upper surface of the plate, a support plate is movably connected inside the square opening, the lower end of the support plate is fixedly connected to the upper surface of the box cover, an L-shaped positioning plate is fixedly connected to the lower front of the support plate, a fixing bolt is threaded through the vertical front of the L-shaped positioning plate, and the outer surface of the fixing bolt passes through the interior of the support plate and overlaps with each other.

[0015] Due to the adoption of the above technical solution, the present invention has achieved the following technical advancements compared to the prior art:

[0016] 1. The utility model provides an experimental device for an air filter, which adopts the mutual cooperation of an air filter filter assembly, a mounting and disassembly assembly, an L-shaped block, a sleeve, a guide rod, a tightening spring, and a blocking block. The arrangement of the air filter filter assembly enables the impurities in the air to be filtered and intercepted during the experiment. After a long period of use, the blocking block is separated from the card slot in the sleeve by pressing the guide rod and driving the tightening spring to squeeze. The blocking block is then driven into the strip groove in the sleeve by rotating the guide rod to complete the removal of the box cover. The arrangement of this structure ensures that the air filter filter assembly can be quickly disassembled and replaced after a long period of use, thereby achieving the effect of simple disassembly and easy operation.

[0017] 2. The utility model provides an experimental device for an air filter, which adopts the mutual cooperation of an extrusion plate, a first rubber plate, a second rubber plate, a movable component, a vertical plate, a right-angled triangle block, an L-shaped push plate, a connecting component, a plate, and a support plate. The plate is placed in an inclined state by moving the plate up and down. Due to the arrangement of the L-shaped push plate and the connecting component, it is convenient to move the vertical plate and the extrusion plate upward, and to squeeze the first rubber block and the second rubber block, so that the outer surfaces of the first rubber block and the second rubber block are tightly fitted with the upper inner wall of the box, thereby achieving a sealing effect. The arrangement of this structure improves the sealing performance of the air filter during experimental testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the exploded structure of the box cover and box body of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of the air filter filter assembly of the utility model;

[0021] Figure 4 This is a schematic diagram of the assembly and disassembly structure of the utility model;

[0022] Figure 5 This is a schematic diagram of the box cover and extruded plate structure of the utility model;

[0023] Figure 6 This is a schematic diagram of the structure of the active components of the utility model.

[0024] In the figure: 1. Box body; 11. Air filter filter assembly; 111. U-shaped plate; 112. Positioning column; 113. Filter screen; 114. Activated carbon plate; 115. Filter cotton; 12. Loading and unloading assembly; 121. L-shaped block; 122. Sleeve; 123. Guide rod; 124. Tightening spring; 125. Block block; 2. Air inlet pipe; 3. Air outlet pipe; 4. Box cover; 41. Extrusion plate; 42. First rubber plate; 43. Second rubber plate; 44. Movable assembly; 441. Vertical plate; 442. Right-angled triangle block; 443. L-shaped push plate; 444. Connecting assembly; 445. Plate; 446. Support plate. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] like Figure 1 As shown, the utility model provides an experimental device for an air filter, comprising a box body 1 and a box cover 4. An air inlet pipe 2 is fixedly connected to the left side of the box body 1, and an air outlet pipe 3 is fixedly connected to the right side of the box body 1. The lower surface of the box cover 4 overlaps the upper surface of the box body 1.

[0027] When the air filter assembly 11 needs to be tested, the air filter assembly 11 is first weighed and the total weight is recorded. After weighing, it is placed inside the box 1, and then the inside of the air inlet pipe 2 is blown for 24 hours by starting the fan, so that the external wind enters the interior of the box 1 and contacts the air filter assembly 11 to intercept air impurities, and the filtered air is discharged. After use, the air filter assembly 11 with the impurities bonded is taken out and weighed, and the total weight of the bonded air filter assembly 11 is recorded. The difference between the two weighing values ​​is the impurity value filtered and intercepted by the air filter experiment, thereby obtaining the experimental data to ensure the air cleanliness requirements.

[0028] like Figure 2 - Figure 4As shown, an air filter filter assembly 11 is overlapped on the lower surface of the inner wall of the box body 1, and two loading and unloading assemblies 12 are fixedly connected to the upper left and right sides of the inner wall of the box body 1 in a mirror-image manner. The air filter filter assembly 11 includes a U-shaped plate 111, and a rectangular array on the horizontal upper surface of the U-shaped plate 111 is slidably connected with four positioning columns 112. The lower ends of the four positioning columns 112 are fixedly connected to the lower surface of the inner wall of the box body 1, and a filter screen 113 is fixedly connected to the left side of the vertically opposite surface of the U-shaped plate 111. An activated carbon plate 114 is fixedly connected to the middle part of the vertically opposite surface of the U-shaped plate 111. A filter cotton 115 is fixedly connected to the right side of the vertically opposite surface of the U-shaped plate 111. The two loading and unloading assemblies 12 both include an L-shaped block 121. The vertical A sleeve 122 is fixedly connected to the side away from the box body 1, and a guide rod 123 is slidably connected to the middle of the upper surface of the sleeve 122. A tightening spring 124 is sleeved above the outer surface of the guide rod 123. The upper ends of the tightening spring 124 and the guide rod 123 are fixedly connected to a circular stopper. The outer surface of the guide rod 123 passes through the interior of the box cover 4 and are movably connected to each other. The lower end of the tightening spring 124 overlaps the upper surface of the box cover 4, and a stopper 125 is fixedly connected to the lower front side of the outer surface of the guide rod 123. A strip groove communicating with the inside and outside is provided on the outer surface of the sleeve 122 away from the vertical direction of the L-shaped block 121. A card slot communicating with the inside and outside is provided on the lower front side of the outer surface of the sleeve 122, and the interior of the card slot overlaps the outer surface of the stopper 125.

[0029] When the box cover 4 is opened and the U-shaped plate 111 is moved upward and separated from the positioning post 112, it is convenient to remove the air filter assembly 11 and replace it.

[0030] like Figure 5As shown, an extrusion plate 41 is provided on the lower surface of the box cover 4, and a first rubber plate 42 is fixedly connected to the left and right sides of the lower surface of the box cover 4, and a second rubber plate 43 is fixedly connected to the front and rear sides of the lower surface of the box cover 4. The height of the second rubber plate 43 is less than the height of the first rubber plate 42. The outer surfaces of the first rubber plate 42 and the second rubber plate 43 are plugged into the upper inner part of the box cover 4, and the outer surfaces of the left and right first rubber plates 42 overlap the inner side of the sleeve 122. The upper surface of the extrusion plate 41 is fixedly connected to an inwardly contracted trapezoidal plate. The outer surface diameter of the extrusion plate 41 is greater than the inner diameter of the first rubber plate 42 and the second rubber plate 43. A movable component 44 is provided on the upper surface of the box cover 4.

[0031] The provision of the first rubber sheet 42 and the second rubber sheet 43 facilitates sealing performance when the box cover 4 is installed. The provision of the movable component 44 facilitates the upward movement of the extrusion plate 41 to extrude the first rubber sheet 42 and the second rubber sheet 43 so that the outer surfaces are closely fitted to the inner wall of the box body 1. At the same time, the inner sides of the first rubber sheet 42 and the second rubber sheet 43 are closely fitted to the outer surface of the extrusion plate 41, thereby achieving sealing.

[0032] like Figure 6 As shown, the movable component 44 includes a vertical plate 441, and a plurality of right-angled triangular blocks 442 are fixedly connected to the left side of the vertical plate 441. The outer surfaces of the vertical plate 441 and the plurality of right-angled triangular blocks 442 are slidably connected to the middle part of the upper surface of the box cover 4. The lower surface of the vertical plate 441 is fixedly connected to the upper surface of the trapezoidal plate in the extrusion plate 41. The lower surface of one of the right-angled triangular blocks 442 is overlapped with an L-shaped push plate 443. The right side of the L-shaped push plate 443 is provided with an inclined surface in the horizontal direction. The left side of the L-shaped push plate 443 is fixedly connected to three connecting components 444 in the vertical direction. The three connecting components Components 444 are composed of a spring and a telescopic shaft, the interior of the spring is sleeved with the outer surface of the telescopic shaft, the left end of the three connecting components 444 is fixedly connected to a plate 445, the upper surface of the plate 445 is provided with a square opening communicating with each other on the right side, a support plate 446 is movably connected inside the square opening, the lower end of the support plate 446 is fixedly connected to the upper surface of the box cover 4, an L-shaped positioning plate is fixedly connected to the lower front of the support plate 446, a fixing bolt is threadedly connected to the vertical front of the L-shaped positioning plate, the outer surface of the fixing bolt passes through the interior of the support plate 446 and overlaps with each other;

[0033] When it is needed, the plate 445 is moved upward so that the plate 445 is in an inclined state and drives the L-shaped push plate 443 and the connecting component 444. Due to the setting of the inclined surface in the L-shaped push plate 443, the inclined surface of one of the right-angled triangle blocks 442 contacts and squeezes, causing the connecting component 444 to be in a retracted state and move to the lower surface of the next right-angled triangle block 442. At this time, the elastic action of the connecting component 444 in the retracted state clamps the lower surface of one of the right-angled triangle blocks 442, and then presses the plate 445 to drive the vertical plate 441 to move upward and drive the extrusion plate 41. By repeating the above The operation is to move or press the plate 445 upward back and forth. When the extrusion plate 41 moves upward to the appropriate position, it contacts and fits tightly with the first rubber plate 42 and the second rubber plate 43. At the same time, the first rubber plate 42 and the second rubber plate 43 are tightly fitted with the extrusion plate 41 to achieve sealing, and the position of the plate 445 is limited by rotating the fixing bolt. Conversely, the connecting assembly 444 is squeezed and contracted by directly pulling the L-shaped push plate 443. At the same time, the L-shaped push plate 443 is separated from one of the right-angled triangle blocks 442, and the vertical plate 441 is pressed downward to separate the extrusion plate 41 from the first rubber plate 42 and the second rubber plate 43.

[0034] The following is a detailed description of the working principle of the experimental device for air filter.

[0035] When the outside wind enters the interior of the box body 1 and filters the impurities in the air through the filter screen 113, and further processing of the air is enhanced by the setting of the activated carbon plate 114 and the filter cotton 115, the guide rod 123 is pressed and the pressing spring 124 is driven to squeeze and shrink so that the blocking block 125 is separated from the slot in the sleeve 122, and the rotation of the guide rod 123 drives the blocking block 125, and then the guide rod 123 is loosened, and the blocking block 125 enters the strip groove in the sleeve 122 under the elastic action of the tightening spring 124 after shrinkage, completing the operation. The air filter filter assembly 11 is removed and replaced. When it is needed, the plate 445 is moved upward so that the plate 445 is in an inclined state and drives the L-shaped push plate 443 and the connecting assembly 444 to facilitate contact and extrusion of the inclined surface in one of the right-angled triangle blocks 442. Since the connecting assembly 444 contacts the lower surface of one of the right-angled triangle blocks 442 under the elastic action, the plate 445 is pressed to drive the vertical plate 441 to move upward and drive the extrusion plate 41, so as to facilitate the close fit between the first rubber plate 42, the second rubber plate 43, the box body 1, and the extrusion plate 41 to achieve sealing.

[0036] The above generally describes the present invention in detail. However, it is obvious to those skilled in the art that modifications or improvements may be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. An experimental device for an air filter, comprising a box body (1) and a box cover (4), characterized in that: An air inlet pipe (2) is fixedly connected to the left side of the box body (1), an air outlet pipe (3) is fixedly connected to the right side of the box body (1), and the lower surface of the box cover (4) overlaps the upper surface of the box body (1); An air filter filter assembly (11) is overlapped on the lower surface of the inner wall of the box (1), and two mounting and disassembly assemblies (12) are fixedly connected in a mirror-image manner on the upper left and right sides of the inner wall of the box (1). The air filter filter assembly (11) includes a U-shaped plate (111), and four positioning columns (112) are slidably connected through a rectangular array on the upper surface of the horizontal direction of the U-shaped plate (111). The lower ends of the four positioning columns (112) are fixedly connected to the lower surface of the inner wall of the box (1), and a filter screen (113) is fixedly connected to the left side of the vertically opposite surface of the U-shaped plate (111). The vertical direction of the U-shaped plate (111) is fixedly connected to the left side of the U-shaped plate (111). An activated carbon plate (114) is fixedly connected to the middle of the opposite surface, and a filter cotton (115) is fixedly connected to the right side of the opposite surface in the vertical direction of the U-shaped plate (111). The two loading and unloading components (12) each include an L-shaped block (121), and a sleeve (122) is fixedly connected to the side of the L-shaped block (121) away from the box body (1) in the vertical direction. A guide rod (123) is slidably connected through the middle of the upper surface of the sleeve (122), and a tightening spring (124) is sleeved above the outer surface of the guide rod (123). The upper ends of the tightening spring (124) and the guide rod (123) are fixedly connected to a circular stopper.

2. The air filter experimental device according to claim 1, characterized in that: The outer surface of the guide rod (123) passes through the interior of the box cover (4) and is movably connected to each other. The lower end of the tensioning spring (124) overlaps the upper surface of the box cover (4). A blocking block (125) is fixedly connected to the lower front side of the outer surface of the guide rod (123).

3. The air filter experimental device according to claim 1, characterized in that: A strip groove communicating with each other is provided on the side of the outer surface of the sleeve (122) away from the L-shaped block (121) in the vertical direction, and a clamping groove communicating with each other is provided on the lower front side of the outer surface of the sleeve (122), and the interior of the clamping groove overlaps with the outer surface of the blocking block (125).

4. The air filter experimental device according to claim 1, characterized in that: The lower surface of the box cover (4) is provided with an extrusion plate (41), the left and right sides of the lower surface of the box cover (4) are fixedly connected with first rubber plates (42), the front and rear sides of the lower surface of the box cover (4) are fixedly connected with second rubber plates (43), the height of the second rubber plate (43) is smaller than the height of the first rubber plate (42), and the outer surfaces of the first rubber plate (42) and the second rubber plate (43) are plugged into the upper part of the inner portion of the box cover (4).

5. The air filter experimental device according to claim 4, characterized in that: The outer surfaces of the first rubber plates (42) on the left and right sides overlap the inner side of the sleeve (122); the upper surface of the extrusion plate (41) is fixedly connected to a trapezoidal plate that shrinks inward; the outer surface diameter of the extrusion plate (41) is larger than the inner diameter of the first rubber plate (42) and the second rubber plate (43); and the upper surface of the box cover (4) is provided with a movable component (44).

6. The air filter experimental device according to claim 5, characterized in that: The movable assembly (44) includes a vertical plate (441), and a plurality of right-angled triangular blocks (442) are fixedly connected to the left side of the vertical plate (441). The outer surfaces of the vertical plate (441) and the plurality of right-angled triangular blocks (442) are slidably connected to the middle of the upper surface of the box cover (4), and the lower surface of the vertical plate (441) is fixedly connected to the upper surface of the trapezoidal plate in the extrusion plate (41).

7. The air filter experimental device according to claim 6, characterized in that: An L-shaped push plate (443) is overlapped on the lower surface of one of the right-angled triangle blocks (442), and an inclined surface is provided on the right side in the horizontal direction of the L-shaped push plate (443). Three connecting components (444) are fixedly connected to the left side in the vertical direction of the L-shaped push plate (443). The three connecting components (444) are respectively composed of a spring and a telescopic shaft. The inner part of the spring is sleeved with the outer surface of the telescopic shaft. The left ends of the three connecting components (444) are fixedly connected to a plate (445).

8. The air filter experimental device according to claim 7, characterized in that: A square opening communicating with each other from top to bottom is provided on the right side of the upper surface of the plate (445), and a support plate (446) is movably connected inside the square opening. The lower end of the support plate (446) is fixedly connected to the upper surface of the box cover (4), and an L-shaped positioning plate is fixedly connected below the front of the support plate (446). A fixing bolt is threadedly connected through the vertical front of the L-shaped positioning plate, and the outer surface of the fixing bolt passes through the interior of the support plate (446) and overlaps with each other.

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