Quick replacement structure for filter screen of high-efficiency filter

Abstract

The utility model relates to the field of high-efficiency filters, in particular to a quick replacement structure for a filter screen of a high-efficiency filter. The technical problems that in the process of replacing the filter screen of the high-efficiency filter, due to the fact that a frame of the filter and the filter screen are generally a non-detachable whole, the whole high-efficiency filter is replaced in a conventional replacement mode, the frame of the high-efficiency filter is wasted, and then resource waste and extra capital consumption are caused are solved. According to the technical scheme, the quick filter screen replacing structure of the high-efficiency filter comprises a replacing assembly. According to the utility model, by arranging the quick mounting mechanism and the quick removing mechanism, the outer frame and the filter screen of the high-efficiency filter are divided into two completely independent parts, so that a user can only replace the filter screen on the premise of not discarding the outer frame after the filtering performance of the high-efficiency filter is reduced; and the process of installing the filter screen into the outer frame is simplified, so that the use experience of a user is guaranteed while resources and funds are saved.

Description

Technical Field

[0001] The utility model relates to the field of high-efficiency filters, in particular to a high-efficiency filter screen quick replacement structure. Background Art

[0002] A high-efficiency filter, or HEPA, is an air purification device that can filter out at least 99.97% of particles with a diameter of 0.3 microns. This filter is widely used in medical, laboratory, industrial and household environments to provide clean air quality. Although the HEPA filter has a high filtration efficiency, its filtration capacity will gradually decrease with the passage of time and the accumulation of particulate matter in the air, so in order to maintain the filtration effect, the filter needs to be replaced regularly. Since the frame and filter of the HEPA filter are usually integrated, and the conventional replacement method is to replace the entire HEPA filter, regular replacement of the filter of the HEPA filter will inevitably waste a large amount of the filter outer frame, resulting in a waste of resources. Utility Model Content

[0003] In order to overcome the problem of replacing the filter screen of the high-efficiency filter, since the filter frame and the filter screen are usually an inseparable whole, the conventional replacement method is to replace the entire high-efficiency filter, which will cause waste of the high-efficiency filter frame, and further cause waste of resources and additional capital consumption.

[0004] The technical solution of the utility model is: a high-efficiency filter screen quick replacement structure, including a replacement component, a positioning component, and a supporting component; the outer side of the replacement component is provided with a positioning component for installing internal components and limiting the rotation angle of the internal components, and one side of the positioning component is fixedly connected to a supporting component for supporting the filter screen.

[0005] Preferably, the replacement assembly is used to quickly replace the filter, the positioning assembly is used to install internal components and limit the rotation angle of the internal components, and the supporting assembly is used to support the filter to prevent the parts between the filter from collapsing.

[0006] Preferably, the replacement assembly includes a first roller, an annular groove, a first synchronous belt, a slot groove, a pressing strip, a sharp block, a second roller, a second synchronous belt, a fixed block, a blunt needle, a connecting shaft, a knob, and a gear; the first roller is provided with two groups, and each group is provided with a plurality of rollers; an annular groove is provided on each of the first rollers; the first synchronous belt is rotatably connected to each of the first rollers; the slot groove is provided on the upper end and the front end of the first synchronous belt. The annular groove and the slot groove are both used for the fixed block and the blunt needle to pass through.

[0007] Preferably, a plurality of pressing strips are fixedly connected to both sides of the slot; a sharp corner block is fixedly connected to the pressing strips; a second roller is arranged at the lower end of the first roller; and a second synchronous belt is rotatably connected to the second roller.

[0008] Preferably, the front end of the second synchronous belt is fixedly connected to a fixed block; a blunt-tipped needle is fixedly connected to the fixed block; a connecting shaft is fixedly connected between the two groups of first rollers and second rollers at the front and rear ends; a knob is fixedly connected to one side of the first roller at the front end; and a gear is fixedly connected to one side of the first roller and the second roller at the rear end. After piercing the two corners of the filter screen onto the blunt-tipped needle, simultaneously turn the knobs on both sides forward to make the first synchronous belt and the second synchronous belt rotate from outside to inside and from front to back at the same time through the gears, the first roller and the second roller, so that the filter screen is dragged into the middle of the first synchronous belt and the second synchronous belt under the drag of the blunt-tipped needle, and the filter screen is pressed between the first synchronous belt and the second synchronous belt by the pressing bar, and at the same time the sharp-angled blocks will pierce into the fiber holes on both sides of the filter screen, and when the knobs are reversed, the first synchronous belt and the second synchronous belt will rotate from inside to outside and from back to front at the same time, and the filter screen will be pushed out by the sharp-angled blocks and the pressing bar that are pierced into the fiber holes on both sides of the filter screen. In the process of pushing out the filter screen, the sharp-angled blocks will simultaneously apply even thrust to both sides of the filter screen to prevent the filter screen from being blocked in the second feed trough.

[0009] Preferably, the positioning assembly includes a mounting cover, a penetration hole, a first feed trough, a first limit block, and a second limit block; a mounting cover connected to rotate together with the first roller and the second roller is provided on one side of each group of gears; a penetration hole is provided at the front end of one side of the mounting cover, and the penetration hole is used for the knob to penetrate the mounting cover.

[0010] Preferably, the front end of the mounting cover is provided with a first feed trough; the front end of the mounting cover is fixedly connected with a first limit block; the rear end of the mounting cover is fixedly connected with a second limit block. When the fixed block fixed on the second synchronous belt hits the first limit block or the second limit block, the first synchronous belt and the second synchronous belt will not be able to continue to rotate, so as to limit the displacement range of the filter in the second feed trough, and the fixed block is used as the force-bearing part between the first limit block and the second limit block to prevent the blunt needle from bending due to collision.

[0011] Preferably, the support assembly includes a support frame, a second feed trough, a perforated support plate, a slot, and a sealing strip; a support frame is fixedly connected to one side of the mounting cover; a second feed trough is provided on the support frame; the upper and lower ends of the second feed trough are fixedly connected to the perforated support plate; two slots are provided inside the front and rear ends of the support frame, and a connecting shaft is rotatably connected in the slot; the upper and lower ends of the support frame are fixedly connected to the sealing strip. After the filter is dragged into the second feed trough by the first synchronous belt and the second synchronous belt, the perforated support plate will support the upper and lower ends of the filter to prevent the filter from collapsing and falling while ensuring air permeability.

[0012] Beneficial effects of the utility model:

[0013] 1. By setting up a quick installation mechanism and a quick removal mechanism, the outer frame and the filter of the high-efficiency filter are divided into two completely independent parts, so that when the filtering performance of the high-efficiency filter decreases, the user can replace only the filter without discarding the outer frame, and simplify the process of installing the filter into the outer frame, thereby saving resources and funds while ensuring the user experience;

[0014] 2. After the two corners of the filter are pierced on the blunt needle, the knobs on both sides are turned forward at the same time to make the first synchronous belt and the second synchronous belt rotate from outside to inside and from front to back at the same time through the gear, the first roller and the second roller, so that the filter is dragged into the middle of the first synchronous belt and the second synchronous belt under the drag of the blunt needle, and the filter is pressed into the middle of the first synchronous belt and the second synchronous belt by the pressing bar. At the same time, the sharp corner block will be inserted into the fiber holes on both sides of the filter, and in this process, the fixed block and the blunt needle will be displaced from the annular groove and the slot groove. After the fixed block fixed on the second synchronous belt hits the second limit block, the first synchronous belt and the second synchronous belt will not be able to continue to rotate, so as to limit the displacement range of the filter in the second feed trough. After the filter is dragged into the second feed trough by the first synchronous belt and the second synchronous belt, the perforated support plate will support the upper and lower ends of the filter to prevent the filter from collapsing and falling while ensuring air permeability, so that the filter can be quickly installed into the outer frame, and the flatness of the installed filter is guaranteed, thereby ensuring the user's experience;

[0015] 3. By twisting the knob in reverse, the first synchronous belt and the second synchronous belt rotate from the inside to the outside and from the back to the front at the same time, and the filter is pushed out by the sharp-angled blocks and pressing strips that are inserted into the fiber holes on both sides of the filter. In the process of pushing out the filter, the sharp-angled blocks will simultaneously apply thrust to both sides of the filter evenly to prevent the filter from being blocked in the second feed trough. After the fixed block fixed on the second synchronous belt hits the first limit block, the first synchronous belt and the second synchronous belt will not be able to continue to rotate. Using the fixed block as the force-bearing part between the first limit block and the second limit block can prevent the blunt-headed needle from bending due to collision, so that the equipment can quickly remove the filter installed in the frame, and the filter and outer frame of the high-efficiency filter are no longer an inseparable whole, so that the user does not need to throw away the entire high-efficiency filter when replacing the filter, thereby saving resources and funds. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 What is shown is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 What is shown is a schematic diagram of the structure of the driving component of the utility model;

[0018] Figure 3 What is shown is a schematic diagram of the first roller structure of the utility model;

[0019] Figure 4 What is shown is a schematic diagram of the structure of the sharp corner block of the utility model;

[0020] Figure 5 Shown is a schematic diagram of the blunt-tip needle structure of the utility model;

[0021] Figure 6 Shown is a schematic diagram of the structure of the second limit block of the utility model;

[0022] Figure 7 Shown is a schematic diagram of the support frame structure of the utility model;

[0023] Figure 8 What is shown is a schematic diagram of the slot structure of the utility model.

[0024] Explanation of the reference numerals: 1. replacement component; 2. positioning component; 3. supporting component; 101. first roller; 102. annular groove; 103. first synchronous belt; 104. slot; 105. pressing strip; 106. pointed block; 107. second roller; 108. second synchronous belt; 109. fixing block; 110. blunt-tip needle; 111. connecting shaft; 112. knob; 113. gear; 201. mounting cover; 202. penetration hole; 203. first feed trough; 204. first limit block; 205. second limit block; 301. supporting bracket; 302. second feed trough; 303. perforated support plate; 304. slot; 305. sealing strip. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0026] See also Figure 1-5The utility model provides an embodiment: a high-efficiency filter screen quick replacement structure, including a replacement component 1, a positioning component 2, and a supporting component 3; the outer side of the replacement component 1 is provided with a positioning component 2 for installing internal components and limiting the rotation angle of the internal components, and one side of the positioning component 2 is fixedly connected with a supporting component 3 for supporting the filter screen. The replacement component 1 is used for quickly replacing the filter screen, the positioning component 2 is used for installing internal components and limiting the rotation angle of the internal components, and the supporting component 3 is used for supporting the filter screen to prevent the parts between the filter screens from collapsing. The replacement assembly 1 includes a first roller 101, an annular groove 102, a first synchronous belt 103, a slot 104, a pressing strip 105, a sharp block 106, a second roller 107, a second synchronous belt 108, a fixing block 109, a blunt needle 110, a connecting shaft 111, a knob 112, and a gear 113; the first roller 101 is provided with two groups, and each group is provided with a plurality of rollers; the first roller 101 is provided with an annular groove 102; the first roller 101 is rotatably connected with the first synchronous belt 103; the upper end and the front end of the first synchronous belt 103 are provided with a slot 104. The annular groove 102 and the slot 104 are used for the fixing block 109 and the blunt needle 110 to pass through. A plurality of pressing strips 105 are fixedly connected to both sides of the slot 104; a sharp corner block 106 is fixedly connected to the pressing strips 105; a second roller 107 is provided at the lower end of the first roller 101; a second synchronous belt 108 is rotatably connected to the second roller 107. A fixing block 109 is fixedly connected to the front end of the second synchronous belt 108; a blunt-tip needle 110 is fixedly connected to the fixing block 109; a connecting shaft 111 is fixedly connected between the two groups of first rollers 101 and second rollers 107 at the front and rear ends; a knob 112 is fixedly connected to one side of the first roller 101 at the front end; a gear 113 is fixedly connected to one side of the first roller 101 and the second roller 107 at the rear end. After the two corners of the filter are pierced on the blunt needle 110, the knobs 112 on both sides are turned forward at the same time, so that the first synchronous belt 103 and the second synchronous belt 108 are rotated from outside to inside and from front to back through the gear 113, the first roller 101 and the second roller 107, so that the filter is dragged into the middle of the first synchronous belt 103 and the second synchronous belt 108 under the drag of the blunt needle 110, and the filter is pressed between the first synchronous belt 103 and the second synchronous belt 108 by the pressing bar 105. 08, and the pointed block 106 will penetrate into the fiber holes on both sides of the filter screen. When the knob 112 is reversed, the first synchronous belt 103 and the second synchronous belt 108 rotate from the inside to the outside and from the back to the front at the same time, and the filter screen is pushed out by the pointed block 106 and the pressing strip 105 that penetrate into the fiber holes on both sides of the filter screen. In the process of pushing the filter screen out, the pointed block 106 will simultaneously apply a uniform thrust to both sides of the filter screen to prevent the filter screen from being blocked in the second feed trough 302.

[0027] See also Figure 6-8In this embodiment, the positioning assembly 2 includes a mounting cover 201, a through hole 202, a first feed slot 203, a first stopper 204, and a second stopper 205; a mounting cover 201 is provided on one side of each gear 113 and is connected to rotate with the first roller 101 and the second roller 107; a through hole 202 is provided at the front end of one side of the mounting cover 201, and the through hole 202 is used for the knob 112 to penetrate the mounting cover 201. A first feed slot 203 is provided at the front end of the mounting cover 201; a first stopper 204 is fixedly connected to the front end of the mounting cover 201; and a second stopper 205 is fixedly connected to the rear end of the mounting cover 201. After the fixed block 109 fixed on the second synchronous belt 108 hits the first limit block 204 or the second limit block 205, the first synchronous belt 103 and the second synchronous belt 108 will not be able to continue to rotate to limit the displacement range of the filter in the second feed trough 302. In addition, using the fixed block 109 as the force-bearing part between the first limit block 204 and the second limit block 205 can prevent the blunt-tipped needle 110 from bending due to collision. The supporting assembly 3 includes a supporting frame 301, a second feed trough 302, a perforated support plate 303, a slot 304, and a sealing strip 305; the supporting frame 301 is fixedly connected to one side of the mounting cover 201; the second feed trough 302 is provided on the supporting frame 301; the upper and lower ends of the second feed trough 302 are both fixedly connected to the perforated support plate 303; the front and rear ends of the supporting frame 301 are both provided with two slots 304, and the slots 304 are rotatably connected with the connecting shaft 111; the upper and lower ends of the supporting frame 301 are both fixedly connected to the sealing strip 305. After the filter is dragged into the second feed trough 302 by the first synchronous belt 103 and the second synchronous belt 108, the perforated support plate 303 will support the upper and lower ends of the filter to prevent the filter from collapsing and falling while ensuring air permeability.

[0028] When installing the filter, after the two corners of the filter are pierced on the blunt needle 110, the knobs 112 on both sides are turned forward at the same time, so that the first synchronous belt 103 and the second synchronous belt 108 are rotated from the outside to the inside and from the front to the back at the same time through the gear 113, the first roller 101 and the second roller 107, so that the filter is dragged into the middle of the first synchronous belt 103 and the second synchronous belt 108 under the drag of the blunt needle 110, and the filter is pressed between the first synchronous belt 103 and the second synchronous belt 108 by the pressing bar 105, and the sharp corner block 106 will be inserted into the fiber holes on both sides of the filter, and in this process, the fixing block 109 and the blunt needle 110 are pulled out from the annular groove. 102 and the slot 104 are displaced. After the fixing block 109 fixed on the second synchronous belt 108 hits the second limit block 205, the first synchronous belt 103 and the second synchronous belt 108 will not be able to continue to rotate, so as to limit the displacement range of the filter in the second feed trough 302. After the filter is dragged into the second feed trough 302 by the first synchronous belt 103 and the second synchronous belt 108, the perforated support plate 303 will support the upper and lower ends of the filter to prevent the filter from collapsing and falling under the premise of ensuring air permeability, so that the filter can be quickly installed into the outer frame, and the flatness of the installed filter is guaranteed, thereby ensuring the user's use experience;

[0029] When removing the old filter, the first synchronous belt 103 and the second synchronous belt 108 are rotated from the inside to the outside and from the back to the front by twisting the knob 112 in reverse, and the filter is pushed out by the sharp corner block 106 and the pressing strip 105 inserted into the fiber holes on both sides of the filter. In the process of pushing out the filter, the sharp corner block 106 will simultaneously apply a thrust evenly to both sides of the filter to prevent the filter from being blocked in the second feed trough 302. After the fixed block 109 fixed on the second synchronous belt 108 hits the first limit block 204, the first synchronous belt 103 and the second synchronous belt 108 will not be able to continue to rotate. The fixed block 109 is used as the force-bearing part between the first limit block 204 and the second limit block 205 to prevent the blunt needle 110 from bending due to collision, so that the device can quickly remove the filter installed in the frame, and the filter and the outer frame of the high-efficiency filter are no longer an inseparable whole, so that the user does not need to throw away the entire high-efficiency filter when replacing the filter, thereby saving resources and funds.

[0030] Through the above steps, a quick installation mechanism and a quick removal mechanism are set up, so that the outer frame and the filter of the high-efficiency filter are divided into two completely independent components. This allows the user to replace only the filter without discarding the outer frame after the filtering performance of the high-efficiency filter decreases, and simplifies the process of installing the filter into the outer frame, thereby saving resources and funds while ensuring the user experience.

[0031] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A high-efficiency filter screen quick replacement structure, comprising a replacement component (1); characterized in that: It also comprises a positioning component (2) and a supporting component (3); the outer side of the replacement component (1) is provided with a positioning component (2) for mounting internal components and limiting the rotation angle of the internal components; one side of the positioning component (2) is fixedly connected with a supporting component (3) for supporting the filter screen.

2. A high efficiency filter screen quick replacement structure according to claim 1, characterized in that: The replacement component (1) comprises a first roller (101), an annular groove (102), a first synchronous belt (103), a slot groove (104), a pressing strip (105), a pointed block (106), a second roller (107), a second synchronous belt (108), a fixing block (109), a blunt-tip needle (110), a connecting shaft (111), a knob (112), and a gear (113); the first roller (101) is provided with two groups, and each group is provided with a plurality of gears; the first roller (101) is provided with an annular groove (102); the first roller (101) is rotatably connected with the first synchronous belt (103); the upper end and the front end of the first synchronous belt (103) are provided with the slot groove (104).

3. A high efficiency filter screen quick replacement structure according to claim 2, characterized in that: A plurality of pressing strips (105) are fixedly connected to both sides of the insertion slot (104); a sharp corner block (106) is fixedly connected to the pressing strips (105); a second roller (107) is disposed at the lower end of the first roller (101); and a second synchronous belt (108) is rotatably connected to the second roller (107).

4. A high efficiency filter screen quick replacement structure according to claim 2, characterized in that: The front end of the second synchronous belt (108) is fixedly connected to a fixed block (109); a blunt-tipped needle (110) is fixedly connected to the fixed block (109); a connecting shaft (111) is fixedly connected between the two groups of first rollers (101) and the second rollers (107) at the front and rear ends; a knob (112) is fixedly connected to one side of the first rollers (101) at the front end; and a gear (113) is fixedly connected to one side of the first rollers (101) and the second rollers (107) at the rear ends.

5. A high efficiency filter screen quick replacement structure according to claim 4, characterized in that: The positioning assembly (2) comprises a mounting cover (201), a penetration hole (202), a first feed slot (203), a first stop block (204), and a second stop block (205); one side of each set of gears (113) is provided with a mounting cover (201) that is rotatably connected to the first roller (101) and the second roller (107); a penetration hole (202) is provided at the front end of one side of the mounting cover (201), and the penetration hole (202) is used for the knob (112) to penetrate the mounting cover (201).

6. A high efficiency filter screen quick replacement structure according to claim 5, characterized in that: The front end of the installation cover (201) is provided with a first feed slot (203); the front end inside the installation cover (201) is fixedly connected to a first limit block (204); and the rear end inside the installation cover (201) is fixedly connected to a second limit block (205).

7. A high efficiency filter screen quick replacement structure according to claim 5, characterized in that: The supporting assembly (3) comprises a supporting frame (301), a second material feed trough (302), a perforated support plate (303), a slot (304), and a sealing strip (305); the supporting frame (301) is fixedly connected to one side of the mounting cover (201); the supporting frame (301) is provided with a second material feed trough (302); the perforated support plate (303) is fixedly connected to the upper and lower ends of the second material feed trough (302); two slots (304) are provided inside the front and rear ends of the supporting frame (301), and a connecting shaft (111) is rotatably connected inside the slot (304); and the sealing strip (305) is fixedly connected to the upper and lower ends of the supporting frame (301).

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