Dust filtering screen window capable of rapidly replacing window screen

Abstract

Screen windows used in daily living are generally used for preventing mosquitoes and flies from entering, window screen holes are large and cannot filter flying catkins and dust, and when a new window screen needs to be replaced, professionals are usually needed for replacing the new window screen. The invention relates to a dust-filtering screen window capable of quickly replacing a window screen, and aims to solve the problems of dust filtering and replacement. The dust filtering screen window adopts a gauze kerchief material as a window screen, so that mosquitoes and flies are prevented, impurities in air can be filtered, and indoor cleanness is kept. The window screen can be provided with patterns, such as butterflies, flowers and plants, and is just like a picture scroll. According to the structure of the product, the screen window is composed of an upper screen box, a side cover, a lower fixing box, a side cover, a left fixing box, a right fixing box and a window screen. A roll of window screen which can be repeatedly replaced and used is placed in the upper screen box, and the window screen can be automatically replaced at any time according to the sanitary condition of the window screen: only the fixing device needs to be opened, the window screen is downwards pulled to be brand new, and then the old window screen is cut off after the window screen is locked; when a roll of window screen is used up, the screen box front cover is opened, the roll core is taken out, a roll of new window screen is put in, and operation is simple.

Description

Technical Field

[0001] This invention relates to the field of construction, and more particularly to a dust-filtering window screen that allows for quick replacement of the screen. Background Technology

[0002] Currently, the screens commonly used in daily life are generally designed to prevent mosquitoes and flies from entering. However, the relatively large mesh size of these screens makes them unable to filter out flying lint and dust. When it is necessary to replace the screens, it is usually necessary to find a professional to do so, which is very inconvenient.

[0003] Chinese invention patent application publication number CN109183276A, published on January 11, 2019, discloses a high-transmittance, high-breathability micro-nano anti-smog window screen: comprising a substrate layer and a fiber filter layer covering the substrate layer, wherein the fiber filter layer is a micro-nano fiber hybrid layer, or comprises at least one layer of nanofibers and micron-sized adhesive fibers stacked together; the micro-nano fiber hybrid layer comprises nanofibers and micron-sized adhesive fibers. This invention's high-transmittance, high-breathability micro-nano anti-smog window screen does not require an additional protective layer and has an appearance almost identical to ordinary window screens; it possesses excellent light transmittance, ventilation, and waterproofing, as well as dustproof, pollen-proof, and smog-proof functions; and its use and installation are exactly the same as ordinary window screens, making it convenient and quick to use.

[0004] This type of screen has the following problems: ① The usage and installation method is exactly the same as ordinary screens, which cannot achieve the problem of convenient and quick screen replacement; ② The micro-nano fiber hybrid filter layer covering the base material uses special materials, which solves the dust prevention problem, but the cost is relatively high, and it is not suitable for replacing the screen at any time according to the cleanliness of the screen. Summary of the Invention

[0005] In order to overcome the shortcomings of existing technologies that cannot simultaneously solve the problems of dust filtration and quick screen replacement, this invention provides a dust-filtering screen that allows for quick screen replacement, with the aim of solving both the dust filtration and quick screen replacement problems.

[0006] The technical solution adopted by the present invention to solve its technical problem is as follows: the dust filter screen is composed of an upper screen box, a screen box side cover, a lower fixing box, a lower box side cover, a side fixing box, and a window screen; the lower end of the screen box side cover is inserted into the upper port of the side fixing box, and the upper end of the lower box side cover is inserted into the lower port of the side fixing box; the upper screen box has a screen box front cover, the lower fixing box has a lower box upper cover, and the side fixing box contains a window screen pressure plate.

[0007] The top gauze box has small and large insertion holes on both sides of the top, a C-shaped shaft slot on the front edge of the top, a mounting hole in the center of the rear facade, and screw holes at both ends inside.

[0008] The above-mentioned gauze box contains a double-layered interlocking window screen core tube, which is divided into an inner tube and an outer tube. There is a slender hole in the middle of both the inner and outer tubes, and a circular baffle at one end of both the inner and outer tubes. There are four square protrusions evenly distributed around the root of the inner tube, four square grooves evenly distributed around the head of the outer tube, and four triangular slots evenly distributed around the round holes at both ends of the inner tube.

[0009] The front cover of the yarn box has an upper shaft on its upper edge, which is inserted into the C-shaped shaft slot of the yarn box. At the lower inner ends of the front cover of the yarn box, there are self-locking press-type spring lock male heads that are connected as one piece.

[0010] The side cover of the gauze box has an elongated slot inside, a round hole with four corners above the elongated slot, and an elongated hole below the elongated slot; the side cover of the gauze box has a small plug and a large plug on the upper two sides, and the large plug has a screw hole; the side cover of the gauze box has a slot on the middle side and screw holes on the lower two sides.

[0011] The long slot inside the side cover of the screen box houses a pressing base; the bottom of the pressing base has a circular spring slot; the upper part of the pressing base has a circular pedestal, around which four triangular protrusions are evenly distributed; the circular pedestal and triangular protrusions of the pressing base protrude from the four-cornered circular holes on the front upper part of the long slot and are inserted into the circular hole of the screen core tube; the lower part of the pressing base has a shallow flat groove, within which is a pressing slider; the protruding part of the pressing slider protrudes from the long hole on the front lower part of the long slot.

[0012] The slot has a self-locking push-button spring latch head inserted into it.

[0013] The lower fixing box and the side fixing box are profiles with identical structures; the lower fixing box and the side fixing box have T-shaped track grooves, small C-shaped slots and large C-shaped shaft slots on the inner sides respectively, and smooth side edges and wide V-shaped grooves on the two side edges respectively.

[0014] The lower fixing box has mounting holes at both ends of one facade and mounting holes at both ends of the two side edges. one There are rectangular holes at both ends of the edge and drainage holes at both ends of the bottom.

[0015] The lower fixing box has a fixing base with ridged grooves inserted into the large C-shaped shaft slots on both sides; the fixing base is equipped with a bottom pressure shaft for the window screen with ridges around the middle and annular grooves at both ends; the lower fixing box has a window screen turning shaft on its outer upper part.

[0016] The lower fixing box has a fixing base inserted at each end on its inner side; each fixing base has a thin shaft inserted into a small C-shaped slot in the middle, a thick shaft inserted into a large C-shaped shaft slot at one end, and a threaded hole at the other end; the lower fixing box, in one A lower box connector can be installed on the rectangular hole on the edge; the lower box connector has a mounting hole, an L-shaped hook and a threaded hole; the end of the lower box connector with the mounting hole is inserted into the rectangular hole and connected to the threaded hole on the fixing base by bolts.

[0017] The lower box cover has a wrench on it, a C-shaped groove on the rear edge, a C-shaped groove on the front edge, and a narrow V-shaped window screen cutting strip.

[0018] The lower box side cover has an upward-opening semi-circular groove at the bottom inner side and an upward-opening semi-annular groove at one inner end of the semi-circular groove; the lower box side cover has a partition in the middle, a circular groove on each side of the lower surface of the partition, a conical protrusion in the center of the circular groove, a circular hole in the center of the partition, a circular slot on each side of the upper rear surface of the partition, and an arc-shaped notched corner groove on the inner two sides of the front side of the partition; the lower box side cover has screw holes on both sides and a screw hole on the lower outer side.

[0019] The semi-annular groove contains a metal ring, which fits onto the annular groove at the bottom of the window screen.

[0020] Between the semi-circular groove and the partition, a bottom shaft spring pressure block is installed; the bottom shaft spring pressure block has a downward-opening semi-circular groove directly below, a circular spring slot on each of its two sides, and a circular hole in the center of its top.

[0021] One of the circular slots on the upper rear facade of the partition has one end of the window screen steering shaft inserted into it.

[0022] The arc-shaped notched grooves on the inner sides of the front of the partition have upper cover locking pins inserted inside; the upper cover locking pins have elastic buckles in the lower middle part.

[0023] The side mounting box has mounting holes at both ends of one facade and mounting holes at both ends of the two side edges. one There are threaded holes at both ends of the edge, and there is a rounded notch at the same end of the inner two edges.

[0024] The side fixing box has a window screen track installed in the T-shaped track groove, and a window screen guide wheel assembly installed on the window screen track.

[0025] The window screen pressure plate inside the side fixing box has a rotating shaft on one side and a side retaining groove on the other side. The rotating shaft is inserted into the large C-shaped shaft slot on one side of the side fixing box, and the side retaining groove is engaged with the side fixing box. oneOn the smooth side of the edge.

[0026] The side fixing box, one Side box connectors can be installed on the threaded holes on the edge; the side box connectors have oblong mounting holes, mounting holes, L-shaped hooks and threaded holes; the oblong mounting holes are connected to the threaded holes on the fixing base that are inserted into the small C-shaped slots and the large C-shaped shaft slots by bolts.

[0027] The window screen is long and thin, with one end inserted into the long and thin hole in the middle of the window screen roll core, and wrapped around the outer edge of the circular baffle to form a whole roll of window screen; the window screen can be made of gauze material or other high-density breathable material; the surface of the window screen can have patterns.

[0028] The beneficial effects of this invention are that the screen not only prevents mosquitoes and flies but also filters airborne pollen and dust. Because the screen uses a commonly used gauze material, it can be made with traditional materials and techniques, resulting in abundant raw materials, simple processes, and low costs. Its convenient and easy-to-use design allows for quick and easy replacement of the screen as needed, maintaining cleanliness of both the screen and the room. Furthermore, the screen can be woven or printed with various patterns, such as butterflies, dragonflies, swallows, landscapes, and flowers, transforming the finished screen into a decorative piece resembling a painting. Attached Figure Description

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0030] Figure 1 This is a three-dimensional assembly diagram of the present invention from an outdoor perspective.

[0031] Figure 2 This is a three-dimensional assembly diagram of the present invention from an indoor perspective.

[0032] Figure 3 This is a schematic diagram of the combination of the inner and outer tubes of the screen box, the front cover of the screen box, and the screen roll core.

[0033] Figure 4 This is a schematic diagram of the inner and outer tubes of a window screen roller.

[0034] Figure 5 This is a top-down view of the side cover of the gauze box.

[0035] Figure 6 This is a schematic diagram of the combination of the side cover of the gauze box, the pressing base, the pressing slider, and the self-locking pressing spring lock head.

[0036] Figure 7 This is a schematic diagram of the front side of the combination of the pressing base and the pressing slider.

[0037] Figure 8This is a side view of the combined pressing base and pressing slider.

[0038] Figure 9 This is a schematic diagram of the combination of the fixing box, fixing base, bottom pressure shaft of the window screen, upper cover of the lower box, and window screen turning shaft.

[0039] Figure 10 This is a top-side view of the fixed base.

[0040] Figure 11 This is a schematic diagram of the combination of the bottom pressure shaft and metal ring of the window screen.

[0041] Figure 12 This is a schematic diagram of the combination of the fixing box, fixing base, fixing base, and lower box connector.

[0042] Figure 13 This is a top-side view of the fixed base.

[0043] Figure 14 This is a side-view of the fixed base.

[0044] Figure 15 This is a schematic diagram of the following components: the lower fixing box, the fixing base, the bottom pressure shaft of the window screen, the upper cover of the lower box, the locking pin of the upper cover, the window screen steering shaft, the side cover of the lower box, the bottom shaft spring pressure block, and the metal ring assembly.

[0045] Figure 16 This is a bottom view of the front side of the lower box cover.

[0046] Figure 17 This is a top view of the rear side cover of the lower box.

[0047] Figure 18 This is a top-side view of the bottom shaft spring pressure block.

[0048] Figure 19 This is a side-view view of the bottom shaft spring pressure block.

[0049] Figure 20 This is a top-down view of the top cover locking pin.

[0050] Figure 21 This is a side-view view of the top cover locking pin.

[0051] Figure 22 This is a schematic diagram of the combination of the side fixing box, window screen track, window screen guide wheel assembly, and window screen pressure plate.

[0052] Figure 23 This is a schematic diagram of the combination of window screen track and window screen guide wheel assembly.

[0053] Figure 24 This is a top-side view of the window screen pressure plate.

[0054] Figure 25This is a schematic diagram of the combination of the side fixing box, window screen track, window screen guide wheel assembly, window screen pressure plate, fixing base, and side box connector.

[0055] Figure 26 This is a schematic diagram of the following components: bottom fixing box, fixing base, bottom pressure shaft of the window screen, window screen turning shaft, window screen, side fixing box, window screen guide wheel assembly, bottom box side cover, bottom shaft spring pressure block, and metal ring assembly.

[0056] In the diagram: 1. Top gauze box; 2. Side cover of gauze box; 3. Bottom fixing box; 4. Side cover of lower box; 5. Side fixing box; 6. Window screen; 7. Top port; 8. Bottom port; 9. Front cover of gauze box; 10. Top cover of lower box; 11. Window screen pressure plate; 12. Small insertion hole; 13. Large insertion hole; 14. C-shaped shaft slot; 15. Mounting hole; 16. Screw hole; 17. Window screen roller core; 18. Inner cylinder; 19. Outer cylinder; 20. Slender hole; 21. Circular baffle; 22. Square protrusion; 23. Square groove; 24. Round hole; 25. Triangular slot; 26. Top shaft; 27. Self-... 28. Male push-button spring lock head, 29. Long slot, 30. Round hole with four corners, 31. Long hole, 32. Small plug, 33. Large plug, 34. Screw hole, 35. Groove, 36. Screw hole, 37. Press-button base, 38. Circular spring slot, 39. Circular column, 40. Triangular protrusion, 41. Shallow flat groove, 42. Press-button slider, 43. Female push-button spring lock head, 44. T-shaped track groove, 45. Small C-shaped slot, 46. Large C-shaped shaft slot, 47. Rounded side, 48. Wide V-shaped groove, 49. Mounting hole, 50. Mounting hole. 51. Rectangular hole; 52. Drain hole; 53. Ribbed groove; 54. Fixed base; 55. Ribbon; 56. Annular groove; 57. Window screen bottom pressure shaft; 58. Window screen turning shaft; 59. Fixed base; 60. Thin shaft; 61. Thick shaft; 62. Threaded hole; 63. Lower box connector; 64. Mounting hole; 65. L-shaped hook; 66. Threaded hole; 67. C-shaped slot; 68. C-shaped slot; 69. Narrow V-shaped window screen cutting strip; 70. Semi-circular groove; 71. Semi-annular groove; 72. Partition; 73. Circular groove; 74. Conical protrusion; 75. Round hole. 76. Circular slot; 77. Arc-shaped notched slot; 78. Screw hole; 79. Screw hole; 80. Metal ring; 81. Bottom shaft spring block; 82. Semi-circular slot; 83. Circular spring slot; 84. Circular slot; 85. Top cover locking pin; 86. Elastic buckle; 87. Mounting hole; 88. Mounting hole; 89. Threaded hole; 90. Arc-shaped notched corner; 91. Window screen track; 92. Window screen guide wheel assembly; 93. Rotating shaft; 94. Side slot; 95. Side box connector; 96. Oblong mounting hole; 97. Mounting hole; 98. L-shaped hook; 99. Threaded hole.

[0057] Among them: 2. Side cover of the screen box, 85. Locking pin of the top cover, 91. Screen track, there is one on each side of the screen window, which is a symmetrical structure. Detailed Implementation

[0058] Reference Figure 1 , Figure 2 The dust filter screen consists of an upper screen box (1), screen box side covers (2) inserted into the two sides of the upper screen box, a lower fixing box (3), a lower box side cover (4) inserted into the two sides of the lower fixing box, a side fixing box (5) on each side, and a window screen (6); the lower ends of the upper two screen box side covers (2) are respectively inserted into the upper ports (7) of the corresponding side fixing boxes (5), and the upper ends of the lower two lower box side covers (4) are respectively inserted into the lower ports (8) of the corresponding side fixing boxes (5); the upper screen box (1) has a screen box front cover (9) that is easy to open and close for replacing the window screen, the lower fixing box (3) has a removable lower box top cover (10), and the side fixing box (5) contains a window screen pressure plate (11) that can be opened and closed.

[0059] Reference Figure 3 The upper gauze box (1) has small insertion holes (12) and large insertion holes (13) on both sides of the upper part for inserting the gauze box side cover (2). There is a C-shaped shaft slot (14) on the upper front edge for installing the gauze box front cover (9). There is an installation hole (15) for installing the screen window body in the center of the rear facade. There are screw holes (16) at both ends of the interior for installing the gauze box side cover (2).

[0060] Reference Figure 3 , Figure 4 The above-mentioned gauze box (1) contains a roll of window screen that can be replaced multiple times. The center of the window screen has a double-layered interlocking window screen core tube (17), which is divided into an inner tube (18) and an outer tube (19). There is a slender hole (20) in the middle of the inner and outer tubes. There is a circular baffle (21) at one end of the inner and outer tubes. There are four square protrusions (22) evenly distributed around the root of the inner tube (18). There are four square grooves (23) evenly distributed around the head of the outer tube (19). There are four triangular slots (25) evenly distributed around the round holes (24) at both ends of the inner tube.

[0061] Reference Figure 3 The front cover (9) of the yarn box has an upper shaft (26) on its upper edge. The upper shaft is inserted into the C-shaped shaft slot (14) on the upper front edge of the yarn box (1). The lower inner ends of the front cover (9) of the yarn box have self-locking press-type spring lock male heads (27) connected as one piece.

[0062] Reference Figure 3 , Figure 5The side cover (2) of the gauze box has a long slot (28) with an opening at the top inside, a round hole (29) with four corners at the top in front of the long slot, and a long hole (30) at the bottom in front of the long slot; the side cover (2) of the gauze box has a small plug (31) and a large plug (32) on both sides at the top, and the large plug has a screw hole (33). The small plug (31) is inserted into the small socket (12) of the upper gauze box (1), and the large plug (32) is inserted into the large socket (13) of the upper gauze box (1). The mounting screw passes through the screw hole (16) inside the upper gauze box (1) and is installed in the screw hole (33) on the large plug (32); the side cover (2) of the gauze box has a groove (34) on the middle side and screw holes (35) on both sides at the bottom for installing the side fixing box (5).

[0063] Reference Figure 3 , Figure 5 , Figure 6 , Figure 7 , Figure 8 The long slot (28) inside the side cover (2) of the screen box contains a pressing base (36); the bottom of the pressing base has a circular spring slot (37) for inserting a spring; the upper part of the pressing base has a circular pillar (38), and four triangular protrusions (39) are evenly distributed around the base of the circular pillar; the circular pillar (38) and the triangular protrusions (39) of the pressing base protrude from the round holes (29) with four corners on the front of the long slot (28), and are inserted into the round hole (24) of the screen core tube (17). When fully inserted, the triangular protrusions (39) overlap and lock with the triangular slot (25); The lower part of the pressing base (36) has a shallow flat groove (40), and there is a pressing slider (41) in the shallow flat groove. The pressing slider can slide up and down in the shallow flat groove. The protruding part of the pressing slider (41) is exposed from the long hole (30) at the front of the long slot (28). By pressing and pushing the pressing slider (41) to move up and down in the shallow flat groove (40) to different positions, the window screen core (17) can be controlled to be non-rotatable, rotatable, or removable. The pressing slider (41), the pressing base (36), and the spring in the bottom annular spring slot (37) are inserted into the long slot (28) together from the opening above the side cover (2) of the screen box.

[0064] Reference Figure 6 The slot (34) has a self-locking push-type spring lock head (42) inserted therein.

[0065] Reference Figure 1 , Figure 9The lower fixing box (3) and the left and right side fixing boxes (5) are profiles with the same structure. The lower fixing box (3) and the left and right side fixing boxes (5) have T-shaped track grooves (43), small C-shaped slots (44) and large C-shaped shaft slots (45) on the inner sides respectively, and smooth side edges (46) and wide V-shaped grooves (47) on the two sides respectively.

[0066] Reference Figure 9 The lower fixing box (3) has mounting holes (48) for installing the screen window frame at both ends of one facade, and mounting holes (49) at both ends of the two edges. one There are rectangular holes (50) at both ends of the edge and drainage holes (51) at both ends of the bottom.

[0067] Reference Figure 9 , Figure 10 , Figure 11 The lower fixing box (3) has a fixing base (53) with a ridge groove (52) inserted in the large C-shaped shaft slots (45) on both sides; the fixing base is equipped with a window screen bottom pressure shaft (56) with a ridge (54) around the middle and annular grooves (55) at both ends; the lower fixing box (3) has a window screen turning shaft (57) on its outside upper part.

[0068] Reference Figure 12 , Figure 13 , Figure 14 The lower fixing box (3) has a fixing base (58) inserted at each end on its inner side; the fixing base has a thin shaft (59) in the middle that is inserted into a small C-shaped slot (44), a thick shaft (60) at one end that is inserted into a large C-shaped shaft slot (45), and a threaded hole (61) at the other end; the lower fixing box (3) has a fixing base (58) inserted at each end on its inner side. one A lower box connector (62) can be installed on the rectangular hole (50) on the edge; the lower box connector has a mounting hole (63), an outer L-shaped hook (64) and a threaded hole (65); the end of the lower box connector with the mounting hole (63) is inserted into the rectangular hole (50) and connected to the threaded hole (61) on the fixed base (58) by a bolt. The mounting bolt passes through the threaded hole (61) on the fixed base (58) and is installed in the mounting hole (63) on the lower box connector, and the head of the bolt applies pressure to the fixed base (58); the outer L-shaped hook (64) of the lower box connector (62) can be inserted into and hooked onto the outer frame of the building window frame and fastened by the bolt on the threaded hole (65).

[0069] Reference Figure 9The lower box cover (10) has a wrench (66) on it, a C-shaped groove (67) on the rear edge, a C-shaped groove (68) on the front edge and a narrow V-shaped window screen cutting strip (69). The lower box cover (10) can be removed by pulling the wrench (66) backward and upward. When installing the lower box cover, align the C-shaped groove (67) on the rear edge with the smooth side (46) behind the lower fixing box (3) and clamp the window screen. Press the front of the lower box cover so that the C-shaped groove (68) is locked on the smooth side (46) in front of the lower fixing box (3) and clamps the window screen. At this time, the narrow V-shaped window screen cutting strip (69) is pressed into the wide V-shaped groove (47) of the lower fixing box (3) for cutting off the old window screen.

[0070] Reference Figure 15 , Figure 16 , Figure 17 The lower box side cover (4) has an upward-opening semi-circular groove (70) at its inner bottom for inserting the end of the bottom pressure shaft (56) of the window screen, and an upward-opening semi-annular groove (71) at one inner end of the semi-circular groove; the lower box side cover (4) has a partition (72) in the middle, a circular groove (73) on each side of the lower surface of the partition, a conical protrusion (74) in the center of the circular groove, a circular hole (75) in the center of the partition, and a circular slot (76) on each side of the upper rear facade of the partition. The inner edges of the partition have rounded notch grooves (77) for opening and closing the lower box cover (10) and inserting the cover locking pin (85); the lower box side cover (4) has screw holes (78) on both sides, and the mounting screws pass through the mounting holes (49) of the lower fixing box (3) and are installed in the screw holes (78) on both sides of the lower box side cover (4); the lower box side cover (4) has screw holes (79) on the lower outer side, and the mounting screws pass through these screw holes and are installed in the small C-shaped slots (44) in the lower fixing box (3).

[0071] Reference Figure 11 , Figure 15 The semi-annular groove (71) contains a metal ring (80), which is fitted onto the annular groove (55) of the bottom pressure shaft (56) of the window screen. The metal rings (80) at both ends of the bottom pressure shaft of the window screen are connected by a loose metal chain, which is used to pull the metal ring upward to lift the bottom pressure shaft (56) of the window screen.

[0072] Reference Figure 15 , Figure 16 , Figure 18 , Figure 19Between the semi-circular groove (70) and the partition (72), a bottom shaft spring pressure block (81) is installed; the bottom shaft spring pressure block has a downward-opening semi-circular groove (82) at the bottom for pressing the end of the bottom pressure shaft (56) of the window screen; the bottom shaft spring pressure block has a circular spring slot (83) on each side for inserting a spring, which cooperates with the circular groove (73) and conical protrusion (74) on the lower surface of the partition (72) in the middle of the lower box side cover (4) for placing and fixing the spring; the bottom shaft spring pressure block has a circular hole groove (84) in the center, which cooperates with the circular hole (75) in the center of the partition of the lower box side cover (4) for inserting a rivet to position the bottom shaft spring pressure block and make it only move up and down. When there is no external force pulling the window screen or metal ring, due to the action of the bottom shaft spring pressure block (81), the bottom pressure shaft (56) of the window screen will always be stuck on the fixed base (53) and remain stationary, thereby fixing the window screen.

[0073] Reference Figure 15 , Figure 26 On one side of the upper rear facade of the partition, there is a circular slot (76) with one end of a screen turning shaft (57) inserted there. The screen turning shaft can make the screen close to the screen guide wheel assembly (92) of the screen track.

[0074] Reference Figure 15 , Figure 20 , Figure 21 The arc-shaped notched groove (77) on the inner two sides of the front of the partition has a cover locking pin (85) for the lower box cover (10) inserted inside. The cover locking pin can press the lower box cover so that it is always stuck on the smooth side (46) of the lower fixed box (3). The cover locking pin (85) has an elastic buckle (86) in the middle and lower part. The elastic buckle is stuck in the middle and upper part of the end of the lower box cover (10) to prevent the cover locking pin from sliding out.

[0075] Reference Figure 5 , Figure 15 , Figure 22 , Figure 25 The side fixing box (5) has mounting holes (87) for installing screen window frames at both ends of one vertical surface, and mounting holes (88) for installing screen box side covers (2) and lower box side covers (4) at both ends of the two edges. The mounting screws pass through the mounting holes (88) at the upper end of the side fixing box (5) and are installed in the lower two side screw holes (35) of the screen box side cover (2). The mounting screws pass through the mounting holes (88) at the lower end of the side fixing box (5) and are installed in the upper two side screw holes (78) of the lower box side cover (4). The side fixing box (5) has mounting holes (87) for installing screen window frames at both ends of one vertical surface, and mounting holes (88) for installing screen box side covers (2) and lower box side covers (4) at both ends of the two edges. oneThe two ends of the edge have threaded holes (89) for installing the side box connector (95); the side fixing box (5) has an arc-shaped notch (90) at the same end of the inner two sides for opening and closing the lower box cover (10) and inserting the upper cover locking pin (85).

[0076] Reference Figure 22 , Figure 23 The side fixing box (5) has a window screen track (91) installed in the T-shaped track groove (43), and a window screen guide wheel group (92) is installed on the window screen track. The rotation direction of the guide wheel has an outward tilt angle. When the window screen is pulled down, the guide wheel gives the window screen an outward pulling force, which can stretch the surface of the window screen to make it flatter.

[0077] Reference Figure 22 , Figure 24 The window screen pressure plate (11) installed inside the side fixing box (5) has a rotating shaft (93) on one side and a side slot (94) on the other side. The rotating shaft (93) is inserted into the large C-shaped shaft slot (45) on one side inside the side fixing box (5). The window screen pressure plate (11) can be opened and closed by rotating the outer side of the shaft. The side slot (94) is locked in the side fixing box (5). one The smooth side edge (46) of the edge can press down on the side of the window screen. By cooperating with the window screen guide wheel group (92) on the window screen track, the side of the window screen can be fixed more safely and reliably.

[0078] Reference Figure 13 , Figure 14 , Figure 25 The side fixing box (5) is in one Side box connectors (95) can be installed on the threaded holes (89) on the edge. The side box connector has an elongated mounting hole (96), a mounting hole (97), an outer L-shaped hook (98), and a threaded hole (99). The mounting screw passes through the mounting hole (97) on the side box connector and is installed in the threaded hole (89) on the side fixing box (5). The outer L-shaped hook (98) of the side box connector (95) can be inserted into and hooked onto the outer frame of the building window frame and tightened by the bolt on the threaded hole (99). The L-shaped hook can be inserted to different depths. The position of the screen window frame can be adjusted by micro-adjustment when it is smaller than the window frame of the building; the oblong mounting hole is connected to the threaded hole (61) on the fixing base (58) in the small C-shaped slot (44) and the large C-shaped shaft slot (45) by bolts. The mounting bolt passes through the oblong mounting hole (96) on the side box connector and is installed in the threaded hole (61) on the fixing base (58), and the head of the bolt applies pressure to the side box connector (95). The oblong mounting hole can adjust the position of the screen window frame when it is larger than the window frame of the building.

[0079] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 The window screen (6) is long and thin. When making the window screen roll, the inner tube (18) and outer tube (19) of the window screen roll core (17) are inserted and rotated until the long and thin hole (20) in the middle of the inner and outer tubes overlaps. One end of the window screen is inserted into the long and thin hole (20) in the middle of the window screen roll core (17). The inner tube (18) and outer tube (19) are rotated to wrap the end of the window screen. The inner and outer tubes are rotated until the square protrusion (22) and the square groove (23) are aligned and overlapped. They are then inserted to lock the window screen in place. The entire window screen roll core (17) is rotated until the wrapped window screen is close to the outer edge of the circular baffle (21) and becomes a whole roll of window screen. A simple way to connect the end of the window screen roll is to directly glue the end of the window screen to the window screen roll core. The window screen (6) can be made of gauze or other high-density breathable material; the surface of the window screen (6) can have a pattern.

[0080] Reference Figure 2 , Figure 3 , Figure 6 , Figure 9 , Figure 15 , Figure 22 , Figure 26Installation and replacement of window screen: When installing or replacing a new roll of window screen, pull out the top cover lock pin (85), turn on the upper cover (10) of the opening and fixing device and the window screen pressure plate (11), press and push the two-position pressing slider (41) to the top. At this time, the circular column (38) is not inserted into the circular hole (24) of the window screen core tube (17). Press the two ends of the screen box front cover (9) at the self-locking pressing spring buckle male head (27) to open the screen box front cover. Then pull out the window screen core tube and the remaining The remaining end of the window screen; then put in a new roll of window screen, press down on both ends of the front cover (9) of the screen box again to close the front cover of the screen box, pull down the head of the window screen (6), pass it between the lower window screen turning shaft (57) and the window screen guide wheel group (92), pull the metal ring (80) upward through the metal chain to lift the bottom pressure shaft (56) of the window screen, then pass the head of the window screen (6) between the bottom pressure shaft (56) of the window screen and the fixed base (53), and put the head of the window screen on the lower fixed box ( 3) Outside the wide V-groove (47) at the front edge; pull down and press the slider (41) to the bottommost non-rotatable stop of the screen roller core. At this time, the circular column (38) and the triangular protrusion (39) are deeply inserted into the circular hole (24) and the triangular slot (25) of the screen roller core and are completely locked. Pull the head of the screen again until the screen is taut. When the bottom pressure shaft (56) of the screen is lifted by the screen being pulled up, it can rotate. When the screen is released, the bottom pressure shaft (56) of the screen springs back. Under the action of the spring force, its edge (54) will be locked in contact with the groove (52) of the fixed base (53) and press the window screen. At this time, cover the upper cover (10) of the lower box of the fixing device, so that the narrow V-shaped window screen cutting strip (69) of the upper cover of the lower box presses the window screen in the wide V-shaped groove (47) of the lower fixing box (3). Insert the upper cover locking pin (85), turn the window screen pressure plate (11) of the fixing device to close and press the side of the window screen. Then cut off the exposed end of the window screen of the upper cover of the lower box.

[0081] When changing the window screen, simply pull out the top cover lock pin (85), turn on the top cover (10) of the lower box of the opening and fixing device and the window screen pressure plate (11), press and push the pressing slider (41) one step up to the window screen core cylinder (17) rotatable position, pull the lower end of the window screen to replace the upper window screen with a brand new one, pull down the pressing slider (41) to the lowest window screen core cylinder non-rotatable position, stretch the lower end of the window screen again until the window screen is tight, close the top cover (10) of the lower box, insert the top cover lock pin (85), turn on the window screen pressure plate (11) to close, and then cut off the old window screen to achieve convenient and quick replacement.

[0082] Reference Figure 3 , Figure 9 , Figure 22Regarding the installation of the screen window frame: As mentioned above, the upper screen box (1) has an installation hole (15) for installing the screen window frame in the center of the rear facade, the lower fixing box (3) has installation holes (48) for installing the screen window frame at both ends of one facade, and the left and right side fixing boxes (5) have installation holes (87) for installing the screen window frame at both ends of one facade; after drilling holes in the corresponding positions of the building window frame through the above installation holes, ordinary screws or petal nuts and expansion screws can be used to install it in the conventional way.

[0083] Reference Figure 12 , Figure 13 , Figure 14 , Figure 25 The present invention also provides quick installation accessories, including a fixed base (58), a lower box connector (62) and a side box connector (95), which are inserted into and hooked onto the outer frame of the building window frame by means of the L-shaped hooks (64, 98) on the outer end of the connector, so as to realize the quick installation of the building window frame without drilling.

Claims

1. A dust filter window screen with quick-changeable screen, comprising an upper screen box (1), a screen box side cover (2), a lower fixing box (3), a lower box side cover (4), a side fixing box (5), and a window screen (6); the lower end of the screen box side cover (2) is inserted into the upper port (7) of the side fixing box (5), and the upper end of the lower box side cover (4) is inserted into the lower port (8) of the side fixing box (5), characterized in that: The upper gauze box (1) has a gauze box front cover (9), the lower fixing box (3) has a lower box top cover (10), and the side fixing box (5) contains a window screen pressure plate (11).

2. The screen window according to claim 1, characterized in that: The upper gauze box (1) has small insertion holes (12) and large insertion holes (13) on both sides of the upper part, a C-shaped shaft slot (14) on the front edge of the upper part, a mounting hole (15) in the center of the rear facade, and screw holes (16) at both ends inside.

3. The screen window according to claim 1, characterized in that: The above-mentioned gauze box (1) has a double-layered interlocking window screen core tube (17) inside, which is divided into an inner tube (18) and an outer tube (19). There is a slender hole (20) in the middle of the inner and outer tubes. There is a circular baffle (21) at one end of the inner and outer tubes. There are four square protrusions (22) evenly distributed around the root of the inner tube (18). There are four square grooves (23) evenly distributed around the head of the outer tube (19). There are four triangular slots (25) evenly distributed around the round holes (24) at both ends of the inner tube.

4. The screen window according to claim 1 or 2, characterized in that: The front cover (9) of the yarn box has an upper shaft (26) on its upper edge. The upper shaft is inserted into the C-shaped shaft slot (14) of the upper yarn box (1). The lower inner ends of the front cover (9) of the yarn box have self-locking press-type spring lock male heads (27) connected as one piece.

5. The screen window according to claim 1, characterized in that: The side cover (2) of the gauze box has a long slot (28) inside, a round hole (29) with four corners on the front of the long slot, and a long hole (30) on the front of the long slot; the side cover (2) of the gauze box has a small plug (31) and a large plug (32) on the upper two sides, and a screw hole (33) on the large plug; the side cover (2) of the gauze box has a slot (34) on the middle side, and screw holes (35) on the lower two sides.

6. The screen window according to claim 3 or 5, characterized in that: The long slot (28) inside the side cover (2) of the gauze box contains a pressing base (36); the bottom of the pressing base has a circular spring slot (37); the upper part of the pressing base has a circular pillar (38), and four triangular protrusions (39) are evenly distributed around the base of the circular pillar; the circular pillar (38) and the triangular protrusions (39) of the pressing base protrude from the round holes (29) with four corners on the front upper part of the long slot (28) and are inserted into the round hole (24) of the window screen core tube (17); the lower part of the pressing base (36) has a shallow flat groove (40), and there is a pressing slider (41) in the shallow flat groove; the protruding part of the pressing slider (41) protrudes from the long hole (30) on the front lower part of the long slot (28).

7. The screen window according to claim 5, characterized in that: The slot (34) has a self-locking push-button spring lock head (42) inserted therein.

8. The screen window according to claim 1, characterized in that: The lower fixing box (3) and the side fixing box (5) are profiles with the same structure. The lower fixing box (3) and the side fixing box (5) have T-shaped track grooves (43), small C-shaped slots (44) and large C-shaped shaft slots (45) on their inner sides respectively, and smooth side edges (46) and wide V-shaped grooves (47) on their two side edges respectively.

9. The screen window according to claim 1, characterized in that: The lower fixing box (3) has mounting holes (48) at both ends of one facade and mounting holes (49) at both ends of the two side edges. one There are rectangular holes (50) at both ends of the edge and drainage holes (51) at both ends of the bottom.

10. The screen window according to claim 8, characterized in that: The lower fixing box (3) has a fixing base (53) with a ridge groove (52) inserted in the large C-shaped shaft slots (45) on both sides; the fixing base is equipped with a window screen bottom pressure shaft (56) with a ridge (54) around the middle and annular grooves (55) at both ends; the lower fixing box (3) has a window screen turning shaft (57) on its outside upper part.

11. The screen window according to claim 8 or 9, characterized in that: The lower fixing box (3) has a fixing base (58) inserted at each end on its inner side; the fixing base has a thin shaft (59) in the middle that inserts into a small C-shaped slot (44), a thick shaft (60) at one end that inserts into a large C-shaped shaft slot (45), and a threaded hole (61) at the other end; the lower fixing box (3) has, one A lower box connector (62) can be installed on the rectangular hole (50) on the edge; the lower box connector has a mounting hole (63), an L-shaped hook (64) and a threaded hole (65); the end of the lower box connector with the mounting hole (63) is inserted into the rectangular hole (50) and connected to the threaded hole (61) on the fixed base (58) by bolts.

12. The screen window according to claim 1, characterized in that: The lower box cover (10) has a wrench (66), a C-shaped groove (67) on the rear edge, a C-shaped groove (68) on the front edge, and a narrow V-shaped window screen cutting strip (69).

13. The screen window according to claim 1, characterized in that: The lower box side cover (4) has an upward-opening semi-circular groove (70) at the bottom inside, and an upward-opening semi-annular groove (71) at one end of the semi-circular groove; the lower box side cover (4) has a partition (72) in the middle, a circular groove (73) on each side of the lower surface of the partition, a conical protrusion (74) in the center of the circular groove, a circular hole (75) in the center of the partition, a circular hole groove (76) on each side of the upper rear surface of the partition, and an arc-shaped notched corner groove (77) on the inner two sides of the front of the partition; the lower box side cover (4) has screw holes (78) on both sides and screw holes (79) on the lower outer side.

14. The screen window according to claim 10 or 13, characterized in that: The semi-annular groove (71) contains a metal ring (80), which is fitted onto the annular groove (55) of the bottom pressure shaft (56) of the window screen.

15. The screen window according to claim 13, characterized in that: Between the semi-circular groove (70) and the partition (72), a bottom shaft spring block (81) is installed; the bottom shaft spring block has a downward-opening semi-circular groove (82) directly below, a circular spring slot (83) on each side above, and a circular hole slot (84) in the center above.

16. The screen window according to claim 13, characterized in that: One end of the window screen turning shaft (57) is inserted into the circular slot (76) on one side of the upper rear facade of the partition.

17. The screen window according to claim 13, characterized in that: The arc-shaped notched corner groove (77) on the inner two sides of the front of the partition has a cover locking pin (85) for the lower box cover (10) inserted inside; the cover locking pin has an elastic buckle (86) in the middle and lower part.

18. The screen window according to claim 1, characterized in that: The side fixing box (5) has mounting holes (87) at both ends of one facade and mounting holes (88) at both ends of the two side edges. one The two ends of the edge have threaded holes (89), and the same end of the inner two sides has a rounded notch (90).

19. The screen window according to claim 8, characterized in that: The side fixing box (5) has a window screen track (91) installed in the T-shaped track groove (43), and a window screen guide wheel assembly (92) installed on the window screen track.

20. The screen window according to claim 1 or 8, characterized in that: The window screen pressure plate (11) installed inside the side fixing box (5) has a rotating shaft (93) on one side and a side slot (94) on the other side. The rotating shaft (93) is inserted into the large C-shaped shaft slot (45) on one side of the side fixing box (5), and the side slot (94) is locked in the side fixing box (5). one On the smooth side edge (46) of the edge.

21. The screen window according to claim 8 or 18, characterized in that: The side fixing box (5) is in one A side box connector (95) can be installed on the threaded hole (89) on the edge; the side box connector has an elongated mounting hole (96), a mounting hole (97), an L-shaped hook (98) and a threaded hole (99); the elongated mounting hole is connected by a bolt to the threaded hole (61) on the fixing base (58) inserted into the small C-shaped slot (44) and the large C-shaped shaft slot (45).

22. The screen window according to claim 1 or 3, characterized in that: The window screen (6) is long and thin. One end of the window screen is inserted into the long and thin hole (20) in the middle of the window screen roll core (17) and wrapped around the outer edge of the circular baffle (21) to form a whole roll of window screen. The window screen (6) can be made of gauze or other high-density breathable material. The surface of the window screen (6) can have a pattern.

Images