Air purification filter screen fixed in clamping mode and fixing method

Abstract

The invention relates to the technical field of filter screen fixing, in particular to an air purification filter screen fixed in a clamping mode and a fixing method. The air purifier comprises a bottom frame, a filter element arranged at the air inlet end of the bottom frame and a control assembly arranged at the air exhaust end of the bottom frame. Clamping assemblies are arranged on the two sides of the bottom frame in a telescopic mode. A sliding channel is further formed in the bottom frame, and the two ends of the sliding channel penetrate through the air inlet end and the air exhaust end of the bottom frame correspondingly; a wedge-shaped sliding block is arranged in the sliding channel in a sliding mode. In a normal state, the air exhaust end of the bottom frame is blocked by the control assembly, and in the air purification filter screen fixed in the clamping mode and the fixing method, one end of the bottom frame is blocked before installation, so that the bottom frame is sucked to a position where the bottom frame needs to be installed by utilizing suction force in an air pipe, and then the bottom frame is clamped in the air pipe through the clamping assembly; therefore, the bottom frame can be quickly mounted in the air pipe, and the mounting efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of filter screen fixing, and in particular to a snap-fit ​​fixed air purification filter screen and a fixing method. Background Art

[0002] With the rapid development of industrial production, the urban environment is increasingly polluted from all aspects. The health of residents living in the city is therefore harmed by air pollution. The decline in outdoor air quality also affects the quality level of urban air. The development of a filtration system that is efficient and fast in filtering dust in the air and reducing and killing pathogenic microorganisms in the air will play a positive role in human health.

[0003] Air filters are divided into four types: coarse efficiency, medium efficiency, sub-high efficiency, and high efficiency. Different numbers of air filters are installed in a pipe according to the air volume. The filter section is installed in the central air conditioning system to filter out dust particles in the indoor air, so as to achieve high quality of indoor air.

[0004] In order to achieve multiple filtration of the air, people will set up multiple filters of different specifications in the pipe. Among the multiple filters of different specifications, the coarse filter is usually set at the end of the pipe, and the fine filter is set inside the pipe.

[0005] After using for a period of time, the filter needs to be removed for cleaning or replacement, but because the fine filter is inside the pipe and far away from the end of the pipe, it is difficult for people to fix or remove the fine filter inside the pipe. Summary of the invention

[0006] The object of the present invention is to provide a snap-fit ​​fixed air purification filter and a fixing method to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned object, one of the objects of the present invention is to provide a snap-fit ​​fixed air purification filter, comprising a bottom frame, a filter element arranged at the air inlet end of the bottom frame, and a control component arranged at the air outlet end of the bottom frame; snap-fit ​​components are arranged on both sides of the bottom frame in a telescopic manner; A sliding channel is also provided in the bottom frame, and the two ends of the sliding channel respectively penetrate the air inlet end and the air outlet end of the bottom frame; a wedge-shaped sliding block is slidably provided in the sliding channel; Under normal conditions, the control component blocks the exhaust end of the bottom frame, so that when the air duct is drawing air, the air pressure at the exhaust end of the control component is forced to be lower than the air pressure at the air inlet end of the bottom frame, thereby attracting the bottom frame and the wedge-shaped slider into the inside of the air duct; When the bottom frame is sucked to the desired installation position, the wedge-shaped slider drives the control component and the clamping component to operate, so that the clamping component extends to clamp the bottom frame in the air duct, and the control component opens the exhaust end of the control component in a rotating manner; A magnet block is fixedly arranged at one end of the sliding channel, and the magnet block is attracted to the wedge-shaped slider, so as to adsorb the wedge-shaped slider when the wedge-shaped slider moves to the magnet block.

[0008] As a further improvement of the present technical solution, the control component includes a plurality of baffles arranged longitudinally, and convex shafts are fixedly provided at opposite ends of the baffles. A groove is provided at the exhaust end of the control component, and the convex shaft at the end of the baffle penetrates into the groove from the inner wall of the bottom frame.

[0009] As a further improvement of the present technical solution, the end of the convex shaft is coaxially fixedly connected with a gear, and a rack is longitudinally slidably arranged inside the groove, and the rack is meshed with multiple gears at the same time; the bottom end of the rack slides into the sliding channel.

[0010] As a further improvement of the present technical solution, the snap-fit ​​assembly includes a sliding cavity opened inside the bottom frame, the bottom end of the sliding cavity is connected to the top of the sliding channel, and one side of the top end of the sliding cavity passes through the side wall of the bottom frame; a snap-fit ​​block is provided at the top end of the sliding cavity for transverse sliding, and a wedge-shaped driving rod is provided inside the sliding cavity for longitudinal sliding, and the wedge-shaped driving rod is used to drive the snap-fit ​​block to move toward the outside of the bottom frame during the movement of the wedge-shaped slider.

[0011] As a further improvement of the technical solution, a reset spring is provided between the clamping block and the sliding cavity to elastically connect the two, so that when disassembly is required, the clamping block can be reset to the sliding cavity by the elastic pulling of the reset spring.

[0012] As a further improvement of the technical solution, the top and bottom ends of the wedge-shaped driving rod are both provided with inclined surfaces, the inclined surface of the top of the wedge-shaped driving rod faces the gear, and the inclined surface of the bottom faces the wedge-shaped sliding block.

[0013] As a further improvement of the present technical solution, the wedge-shaped drive rod includes a first push rod located at the top and a second push rod located at the bottom, a connecting spring is arranged between the first push rod and the second push rod to elastically connect the two, the inclined surface of the top of the first push rod faces the clamping block, and the inclined surface of the bottom of the second push rod faces the wedge-shaped slider.

[0014] As a further improvement of the technical solution, a rotating shaft is rotatably arranged on the outer side of the bottom frame, and sealing blocks are arranged at the four corners of the bottom frame. The sealing blocks are made of flexible material, and the thickness of the sealing blocks is consistent with the height of the rotating shaft protruding from the side wall of the bottom frame.

[0015] The second object of the present invention is to provide a method for fixing an air purification filter screen for clamping fixation, comprising the following method steps: S1. When the air is drawn from the air duct, the bottom frame located inside the air duct blocks the inside of the air duct, thereby increasing the suction force inside the air duct, thereby sucking the bottom frame originally at the end position inward; S2. The suction force inside the air duct sucks the wedge-shaped slider, so that the wedge-shaped slider moves toward the rack; during the movement of the wedge-shaped slider, the wedge-shaped slider first pushes the wedge-shaped driving rod upward through its own inclined surface, and the wedge-shaped driving rod moves upward to push the clamping block outward, and at this time, the clamping block moving outward is clamped in the clamping groove on the inner wall of the air duct; S3. The wedge-shaped slider continues to move, pushing the rack upward through its own inclined surface. The upward movement of the rack drives the gear to rotate. The rotation of the gear drives the baffle to rotate 90 degrees through the convex shaft, so that the baffle is in a horizontal state; when the baffle is in the horizontal state, the exhaust end of the bottom frame is opened.

[0016] Compared with the prior art, the present invention has the following beneficial effects: In the snap-fit ​​fixed air purification filter and fixing method, one end of the bottom frame is blocked before installation, so that the suction force inside the air duct is used to suck the bottom frame to the position where it needs to be installed, and then the bottom frame is clamped inside the air duct through the snap-fit ​​assembly, so that the bottom frame can be quickly installed inside the air duct, thereby improving the installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ; Figure 2 The overall structure of the present invention is shown in FIG. Figure 1 ; Figure 3 It is a structural schematic diagram of the control component of the present invention; Figure 4 It is a schematic diagram of the cross-sectional structure of the bottom frame of the present invention; Figure 5 The structure of the clamping assembly of the present invention is schematically shown in FIG. Figure 1 ; Figure 6 The structure of the clamping assembly of the present invention is schematically shown in FIG. Figure 2 .

[0018] The meaning of each number in the figure is: 100, bottom frame; 101, filter element; 110, control assembly; 111, baffle; 112, gear; 113, groove; 114, rack; 120, snap-fit ​​assembly; 121, sliding cavity; 122, snap-fit ​​block; 123, first push rod; 124, connecting spring; 125, second push rod; 126, return spring; 130, sliding channel; 131, wedge-shaped slider; 132, magnet block; 140, rotating shaft; 141, sealing block; 200. Air duct; 201. Block. DETAILED DESCRIPTION

[0019] The following will be combined with the accompanying drawings in the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0021] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0022] See also Figure 1-Figure 4As shown, one of the purposes of the present invention is to provide a snap-fit ​​fixed air purification filter, comprising a bottom frame 100, a filter element 101 arranged at the air inlet end of the bottom frame 100, and a control component 110 arranged at the air outlet end of the bottom frame 100; snap-fit ​​components 120 are arranged on both sides of the bottom frame 100 in a telescopic manner; a sliding channel 130 is also opened in the bottom frame 100, and the two ends of the sliding channel 130 respectively penetrate the air inlet end and the air outlet end of the bottom frame 100; a wedge-shaped slider 131 is slidably arranged in the sliding channel 130; under normal conditions, the control component 1 10 blocks the exhaust end of the bottom frame 100 so that when the air duct 200 is exhausting air, the air pressure at the exhaust end of the control component 110 is forced to be lower than the air pressure at the air inlet end of the bottom frame 100, thereby attracting the bottom frame 100 and the wedge-shaped slider 131 into the air duct 200; when the bottom frame 100 is sucked to the desired installation position, the wedge-shaped slider 131 drives the control component 110 and the clamping component 120 to operate, so that the clamping component 120 extends to clamp the bottom frame 100 in the air duct 200, and the control component 110 opens the exhaust end of the control component 110 in a rotating manner.

[0023] That is to say, before installation, one end of the bottom frame 100 is blocked, so that the suction force inside the air duct 200 is used to suck the bottom frame 100 to the position where it needs to be installed, and then the bottom frame 100 is clamped inside the air duct 200 through the clamping assembly 120, so as to achieve rapid installation of the bottom frame 100 inside the air duct 200 and improve installation efficiency.

[0024] like Figure 3 As shown, the control component 110 includes a plurality of baffles 111 arranged longitudinally, and convex shafts are fixedly provided at opposite ends of the baffles 111. A groove 113 is provided at the exhaust end of the control component 110, and the convex shaft at the end of the baffle 111 penetrates into the groove 113 from the inner wall of the bottom frame 100.

[0025] like Figure 4 As shown, the end of the convex shaft is coaxially fixedly connected with a gear 112, and a rack 114 is longitudinally slidably arranged inside the groove 113, and the rack 114 is meshed with multiple gears 112 at the same time; the bottom end of the rack 114 slides into the sliding channel 130.

[0026] like Figure 4-Figure 6 As shown, the snap-on assembly 120 includes a sliding cavity 121 opened inside the bottom frame 100, the bottom end of the sliding cavity 121 is connected to the top of the sliding channel 130, and one side of the top of the sliding cavity 121 passes through the side wall of the bottom frame 100; a snap-on block 122 is provided at the top of the sliding cavity 121 for transverse sliding, and a wedge-shaped driving rod is provided inside the sliding cavity 121 for longitudinal sliding, and the wedge-shaped driving rod is used to drive the snap-on block 122 to move toward the outside of the bottom frame 100 during the movement of the wedge-shaped slider 131.

[0027] A return spring 126 is provided between the clamping block 122 and the sliding cavity 121 to elastically connect the two, so that when disassembly is required, the clamping block 122 can be returned to the sliding cavity 121 by the elastic pull of the return spring 126 .

[0028] Specifically, the top and bottom ends of the wedge-shaped driving rod are both provided with inclined surfaces, the inclined surface of the top of the wedge-shaped driving rod faces the gear 112 , and the inclined surface of the bottom faces the wedge-shaped sliding block 131 .

[0029] exist Figure 4 In the figure, a magnet block 132 is fixedly provided at one end of the sliding channel 130, and the magnet block 132 is attracted to the wedge-shaped slider 131, so as to adsorb the wedge-shaped slider 131 when the wedge-shaped slider 131 moves to the magnet block 132, so as to avoid the resetting of the wedge-shaped slider 131.

[0030] Working principle: First, the baffle 111 is placed in a vertical position so that the baffle 111 blocks the exhaust end of the bottom frame 100; then the bottom frame 100 is placed at the end of the air duct 200. When the air duct 200 starts to draw air, the suction force inside the air duct 200 increases, thereby sucking the bottom frame 100 originally at the end position inward. Figure 4 As shown, a stopper 201 is provided inside the air duct 200 for limiting the bottom frame 100. When the bottom frame 100 moves to the stopper 201, the stopper 201 blocks the bottom frame 100, and the stopper 201 cannot move further. At this time, the suction force inside the air duct 200 has not disappeared, so the suction force will suck the wedge-shaped slider 131, so that the wedge-shaped slider 131 moves toward the rack 114. During the movement of the wedge-shaped slider 131, the wedge-shaped slider 131 first pushes the wedge-shaped driving rod upward through its own inclined surface, and the wedge-shaped driving rod moves upward to push the clamping block 122 outward, and the clamping block 122 moving outward is stuck in the clamping groove of the inner wall of the air duct 200, so as to fix the bottom frame 100. Then, the wedge-shaped slider 131 continues to move, and the top of the wedge-shaped slider 131 blocks the wedge-shaped driving rod to prevent the wedge-shaped driving rod from moving downward. Then, the wedge-shaped slider 131 that continues to move pushes the rack 114 upward through its own inclined surface, and the rack 114 moves upward to drive the gear 112 to rotate. The gear 112 rotates and drives the baffle 111 to rotate 90 degrees through the convex shaft, so that the baffle 111 is in a horizontal state. When the baffle 111 is in a horizontal state, the exhaust end of the bottom frame 100 is opened, and the filter element 101 can filter the air.

[0031] When the bottom frame 100 needs to be removed from the air duct 200, a magnet can be used to attract the wedge-shaped slider 131, and then the wedge-shaped slider 131 can be pulled to reset the wedge-shaped slider 131. After the wedge-shaped slider 131 is reset, it is separated from the wedge-shaped driving rod, and then the clamping block 122 is reset to the sliding cavity 121 by the elasticity of the reset spring 126. At this time, the bottom frame 100 can be removed from the air duct 200.

[0032] Moreover, in order to further improve the installation efficiency of the bottom frame 100, the wedge-shaped driving rod includes a first top rod 123 located at the top and a second top rod 125 located at the bottom, and a connecting spring 124 is arranged between the first top rod 123 and the second top rod 125 to elastically connect the two, and the inclined surface of the top of the first top rod 123 faces the clamping block 122, and the inclined surface of the bottom of the second top rod 125 faces the wedge-shaped slider 131.

[0033] In this way, when the bottom frame 100 is sucked, the wedge-shaped slider 131 will also move toward the rack 114. At this time, the movement of the wedge-shaped slider 131 first pushes the second push rod 125 upward. Since the clamping block 122 has not moved to the slot in the air duct 200 at this time, the clamping block 122 cannot move. At this time, the connecting spring 124 begins to compress. When the clamping block 122 moves to the slot in the air duct 200, the connecting spring 124 pushes the first push rod 123 upward through its own elasticity. The first push rod 123 pushes the clamping block 122 toward the outside of the bottom frame 100, so that the clamping block 122 is clamped into the slot. The advantage of this is that it avoids setting a stopper 201 inside the air duct 200.

[0034] Moreover, in order to improve the sliding efficiency of the bottom frame 100 and reduce the friction between the bottom frame 100 and the air duct 200, a rotating shaft 140 is rotatably provided on the outer side of the bottom frame 100, and sealing blocks 141 are provided at the four corners of the bottom frame 100. The sealing blocks 141 are made of a flexible material, and the thickness of the sealing blocks 141 is consistent with the height of the rotating shaft 140 protruding from the side wall of the bottom frame 100. In this way, the friction between the bottom frame 100 and the air duct 200 is reduced by the rotating shaft 140, so that the bottom frame 100 can use the rotating shaft 140 to move quickly inside the air duct 200, and the sealing blocks 141 are also provided to block the gaps between the multiple rotating shafts 140 to prevent unfiltered gas from flowing into the air duct 200 through the gaps.

[0035] The second object of the present invention is to provide a method for fixing an air purification filter screen for clamping fixation, comprising the following method steps: S1. When the air is drawn from the air duct 200, the bottom frame 100 located inside the air duct 200 blocks the inside of the air duct 200, thereby increasing the suction force inside the air duct 200, thereby sucking the bottom frame 100 originally at the end position inward; S2. The suction force inside the air duct 200 sucks the wedge-shaped slider 131, so that the wedge-shaped slider 131 moves toward the rack 114. During the movement of the wedge-shaped slider 131, the wedge-shaped slider 131 first pushes the wedge-shaped driving rod upward through its own inclined surface, and the wedge-shaped driving rod moves upward to push the clamping block 122 outward. At this time, the clamping block 122 moving outward is clamped in the clamping groove on the inner wall of the air duct 200. S3. The wedge-shaped slider 131 continues to move and pushes the rack 114 upward through its own inclined surface. The upward movement of the rack 114 drives the gear 112 to rotate. The rotation of the gear 112 drives the baffle 111 to rotate 90 degrees through the convex shaft, so that the baffle 111 is in a horizontal state; when the baffle 111 is in the horizontal state, the exhaust end of the bottom frame 100 is opened.

[0036] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A snap-fit ​​fixed air purification filter, comprising a bottom frame (100), a filter element (101) arranged at an air inlet end of the bottom frame (100), and a control component (110) arranged at an air outlet end of the bottom frame (100); snap-fit ​​components (120) are arranged on both sides of the bottom frame (100) in a telescopic manner; the characteristics are: A sliding channel (130) is also provided in the bottom frame (100), and two ends of the sliding channel (130) respectively penetrate the air inlet end and the air outlet end of the bottom frame (100); a wedge-shaped sliding block (131) is slidably provided in the sliding channel (130); Under normal conditions, the control component (110) blocks the exhaust end of the bottom frame (100) so that when the air duct (200) is drawing air, the air pressure at the exhaust end of the control component (110) is forced to be lower than the air pressure at the air inlet end of the bottom frame (100), thereby attracting the bottom frame (100) and the wedge-shaped slider (131) into the interior of the air duct (200); When the bottom frame (100) is sucked to a desired installation position, the wedge-shaped slider (131) drives the control component (110) and the clamping component (120) to operate, so that the clamping component (120) extends to clamp the bottom frame (100) in the air duct (200), and the control component (110) rotates to open the exhaust end of the control component (110); A magnet block (132) is fixedly provided at one end of the sliding channel (130), and the magnet block (132) attracts the wedge-shaped slider (131) and is used to absorb the wedge-shaped slider (131) when the wedge-shaped slider (131) moves to the magnet block (132).

2. The clip-on fixed air purification filter according to claim 1, characterized in that: The control component (110) comprises a plurality of baffles (111) arranged in a longitudinal arrangement, and convex shafts are fixedly arranged at opposite ends of the baffles (111). A groove (113) is provided at the exhaust end of the control component (110), and the convex shafts at the ends of the baffles (111) penetrate into the groove (113) from the inner wall of the bottom frame (100).

3. The clip-on fixed air purification filter according to claim 2, characterized in that: The end of the convex shaft is coaxially fixedly connected with a gear (112); a rack (114) is longitudinally slidably arranged inside the groove (113); the rack (114) is meshed with a plurality of gears (112) at the same time; and the bottom end of the rack (114) slides into the sliding channel (130).

4. The clip-on fixed air purification filter according to claim 1, characterized in that: The clamping assembly (120) comprises a sliding cavity (121) opened inside the bottom frame (100); the bottom end of the sliding cavity (121) is communicated with the top of the sliding channel (130); one side of the top end of the sliding cavity (121) penetrates the side wall of the bottom frame (100); a clamping block (122) is arranged at the top end of the sliding cavity (121) for transverse sliding movement; a wedge-shaped driving rod is arranged inside the sliding cavity (121) for longitudinal sliding movement; the wedge-shaped driving rod is used to drive the clamping block (122) to move toward the outside of the bottom frame (100) during the movement of the wedge-shaped sliding block (131).

5. The clip-on fixed air purification filter according to claim 4, characterized in that: A return spring (126) is provided between the clamping block (122) and the sliding cavity (121) to elastically connect the two, so that when disassembly is required, the clamping block (122) can be returned to the sliding cavity (121) by elastically pulling the return spring (126).

6. The clip-on fixed air purification filter according to claim 4, characterized in that: The top and bottom ends of the wedge-shaped driving rod are both provided with inclined surfaces, the inclined surface at the top of the wedge-shaped driving rod faces the gear (112), and the inclined surface at the bottom faces the wedge-shaped sliding block (131).

7. The clip-on fixed air purification filter according to claim 4, characterized in that: The wedge-shaped driving rod comprises a first push rod (123) located at the top and a second push rod (125) located at the bottom, a connecting spring (124) is provided between the first push rod (123) and the second push rod (125) for elastically connecting the two, the inclined surface at the top of the first push rod (123) faces the clamping block (122), and the inclined surface at the bottom of the second push rod (125) faces the wedge-shaped sliding block (131).

8. The clip-on fixed air purification filter according to claim 1, characterized in that: A rotating shaft (140) is rotatably arranged on the outer side of the bottom frame (100), and sealing blocks (141) are arranged at the four corners of the bottom frame (100). The sealing blocks (141) are made of a flexible material, and the thickness of the sealing blocks (141) is consistent with the height of the rotating shaft (140) protruding from the side wall of the bottom frame (100).

9. A method for fixing a snap-fit ​​air purification filter as claimed in any one of claims 4 to 8, characterized in that: The method comprises the following steps: S1. When air is drawn from the air duct (200), the bottom frame (100) located inside the air duct (200) blocks the inside of the air duct (200), thereby increasing the suction force inside the air duct (200), thereby sucking the bottom frame (100) originally at the end position inward; S2, the suction force inside the air duct (200) sucks the wedge-shaped slider (131), thereby causing the wedge-shaped slider (131) to move toward the rack (114); during the movement of the wedge-shaped slider (131), the wedge-shaped slider (131) first pushes the wedge-shaped driving rod upward through its own inclined surface, and the wedge-shaped driving rod moves upward to push the clamping block (122) outward, and at this time, the clamping block (122) moving outward is clamped in the clamping groove on the inner wall of the air duct (200); S3. The wedge-shaped slider (131) continues to move and pushes the rack (114) upwards through its own inclined surface. The rack (114) moves upwards and drives the gear (112) to rotate. The gear (112) rotates and drives the baffle (111) to rotate 90 degrees through the convex shaft, so that the baffle (111) is in a horizontal state. When the baffle (111) is in the horizontal state, the exhaust end of the bottom frame (100) is opened.

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