Door and window on-site air tightness detection device and detection method thereof

Abstract

The invention discloses a door and window on-site air tightness detection device and a detection method thereof, and relates to the technical field of door and window air tightness detection, the door and window on-site air tightness detection device comprises a fixed base, a mounting plate, a detection plate, a front hole and a rear hole; a transparent plate is arranged on the mounting plate in a sliding manner, and a driving assembly for driving the transparent plate to move is mounted on the mounting plate; the transparent plate abuts against one side of the detection plate, the side, away from the transparent plate, of the detection plate abuts against a cover plate, and the cover plate is connected to the bottom of the transparent plate in a bolted mode. And a turnover mechanism for driving the detection plate to turn over is mounted on the mounting plate. According to the application, powder in the rear hole can be conveniently cleaned.

Description

Technical Field

[0001] The present application relates to the technical field of air tightness detection of doors and windows, and in particular to an on-site air tightness detection device and a detection method for doors and windows. Background Art

[0002] At present, the air tightness of doors and windows refers to the air permeability per unit opening length or unit area of ​​doors and windows. It assesses the ability of doors and windows to prevent air permeation when they are closed.

[0003] Related technology can refer to the Chinese utility model patent with authorization announcement number CN211954556U, which discloses an on-site airtightness performance detection device for building doors and windows, including a fixed base, a horizontal adjustment mechanism is fixedly installed on the upper surface of the fixed base, a vertical adjustment mechanism is arranged on the top of the horizontal adjustment mechanism, a mounting plate is arranged on the outer side wall of the vertical adjustment mechanism, a fixing mechanism is arranged on the upper surface of the mounting plate, a detection component is arranged on the side of the mounting plate away from the vertical adjustment mechanism, a fixed block is arranged on one side of the detection component, the fixed block is connected to the mounting plate through the fixing mechanism, a front cover component is arranged on the other side of the detection component, the detection component includes a detection plate, a front hole and a slot are opened on one side of the detection plate, the number of the front holes is multiple, and the multiple front holes are arranged in a rectangular array at the edge of the detection plate, the slot is located at the center of the detection plate, and a rear hole is opened on the other side of the detection plate, the rear hole is connected with the corresponding front hole, and a transparent block is embedded in the rear hole.

[0004] However, after the powder is blown from the front hole into the above-mentioned rear hole, it is inconvenient to clean the powder in the rear hole, thereby making it inconvenient for the detection device to perform the next detection. Summary of the invention

[0005] The present application provides an on-site air tightness detection device for doors and windows, which is convenient for cleaning the powder in the rear hole, and adopts the following technical solution:

[0006] A door and window on-site air tightness detection device comprises a fixed base, a mounting plate, a detection plate, a front hole and a rear hole; a transparent plate is slidably arranged on the mounting plate, and a driving component for driving the transparent plate to move is installed on the mounting plate; the transparent plate abuts against one side of the detection plate, and a cover plate abuts against the side of the detection plate away from the transparent plate, and the cover plate is bolted to the bottom of the transparent plate; a flipping mechanism for driving the detection plate to flip is installed on the mounting plate.

[0007] First, move the detection device to the specified position, then remove the cover plate, put powder into the front hole, and then start the detection; when the detection is completed, if powder enters the rear hole, the transparent plate is driven to separate from the detection plate by the driving component, and then the detection plate is flipped by the flipping mechanism, so that the powder in the rear hole can be cleaned; in summary, by adopting the above scheme, it is convenient to clean the powder in the rear hole.

[0008] Preferably, the driving assembly includes a lead screw rotatably connected to the mounting plate and a first guide rod fixedly connected to the mounting plate; the transparent plate is threadedly connected to the lead screw and slidably connected to the first guide rod; a driving motor is installed on the top of the mounting plate, the output shaft of the driving motor is fixedly connected to the first bevel gear, a second bevel gear is fixedly mounted on the lead screw, and the first bevel gear is meshed with the second bevel gear.

[0009] By adopting the above scheme, when it is necessary to drive the transparent plate to move, the driving motor is started first. At this time, the output shaft of the driving motor drives the first bevel gear to rotate, the rotation of the first bevel gear drives the second bevel gear to rotate, the rotation of the second bevel gear drives the lead screw to rotate, and the rotation of the lead screw can drive the transparent plate to move; the set driving component is convenient for driving the transparent plate to move.

[0010] Preferably, the flipping mechanism includes a rotating plate rotatably connected to the mounting plate, a connecting rod hinged at one end of the rotating plate, and a moving rod hinged at one end of the connecting rod away from the rotating plate; a through hole is opened on the transparent plate for allowing the moving rod to pass through, a first vertical block is fixedly connected to the bottom of the moving rod, a second guide rod is fixedly connected to one side of the first vertical block, a sliding sleeve is installed on the mounting plate, and the second guide rod is slidably connected to the sliding sleeve; a first spring is arranged between the sliding sleeve and the first vertical block; a rack is installed on the top of the moving rod away from the connecting rod end, a rotating shaft is fixedly connected to the top of the detection plate, the rotating shaft is rotatably connected to the mounting plate, a spur gear is fixed on the rotating shaft, and the spur gear is meshed with the rack; a push rod is fixedly connected to the side of the transparent plate away from the detection plate, and the push rod can abut against one side of the rotating plate.

[0011] By adopting the above scheme, the movement of the transparent plate drives the push rod to move. When the push rod moves to contact with the rotating plate, it continues to drive the transparent plate to move. Then the rotating plate rotates. The rotation of the rotating plate drives the connecting rod to move. The movement of the connecting rod drives the moving rod to move. The movement of the moving rod drives the rack to move. The movement of the rack drives the spur gear to rotate. The rotation of the spur gear drives the rotating shaft to rotate. The rotation of the rotating shaft drives the detection plate to flip. In summary, the set flipping mechanism is convenient for driving the detection plate to flip.

[0012] Preferably, a powder collecting mechanism for collecting dust is installed on the mounting plate.

[0013] By adopting the above scheme, the powder receiving mechanism is provided, which facilitates the receiving of the powder flowing out of the rear hole.

[0014] Preferably, the powder collecting mechanism includes a dovetail groove opened at the bottom of the mounting plate, a dovetail plate slidably connected to the dovetail groove, a vertical plate fixed to the bottom of the dovetail plate, a ash collecting box bolted to the bottom of the vertical plate, a second vertical block installed at the bottom of the mounting plate, and a plurality of second springs arranged between the vertical plate and the second vertical block; when the transparent plate abuts the detection plate, the second spring is in a compressed state, a guide wheel is installed on the mounting plate, a rope body is arranged on the guide wheel, and both ends of the rope body are respectively fixed to the transparent plate and the vertical plate.

[0015] By adopting the above solution, when the detection plate is turned over, the ash receiving box moves to the bottom of the detection plate under the action of the second spring, so as to facilitate the collection of the powder flowing out of the detection plate.

[0016] Preferably, a vibration mechanism for vibrating the detection plate is installed on the mounting plate.

[0017] By adopting the above solution, the vibration mechanism is provided, which facilitates the vibration of the detection plate, thereby preventing powder from remaining on the detection plate.

[0018] Preferably, the vibration mechanism includes a horizontal axis rotatably connected to the mounting plate, a cam eccentrically connected to one end of the horizontal axis, and an abutment plate abutting against the circumferential surface of the cam; a horizontal block is fixedly connected to the side wall of the mounting plate, a third guide rod is slidably connected to the horizontal block, the top of the third guide rod is fixedly connected to the bottom of the abutment plate, and a third spring is arranged between the abutment plate and the horizontal block; an abutment rod is fixedly connected to the bottom of the abutment plate, and one end of the abutment rod away from the abutment plate can abut against the detection plate; a driving assembly for driving the horizontal axis to rotate is installed on the mounting plate.

[0019] By adopting the above scheme, the horizontal shaft is first driven to rotate by the driving assembly, and the rotation of the horizontal shaft drives the cam to rotate. The cam rotates and drives the abutment plate to reciprocate under the action of the third spring. The reciprocating movement of the abutment plate can vibrate the detection plate. In summary, the vibration mechanism is set up to facilitate the vibration of the detection plate.

[0020] Preferably, the driving assembly includes a vertical tube rotatably connected to the side wall of the mounting plate, a vertical rod arranged in the vertical tube, a spherical block fixedly connected to the bottom of the vertical rod and a fixing plate fixedly connected to the side wall of the mounting plate; one end of the vertical rod passes through and is slidably connected to the fixing plate, and one end of the vertical rod away from the spherical block is threadedly connected to a limiting ring; the side wall of the vertical rod is fixedly connected to a connecting block, and a fourth spring is arranged between the connecting block and the fixing plate; the side wall of the vertical rod is fixedly connected to a plurality of spiral blocks in sequence along its circumference, and the inner wall of the vertical tube is sequentially provided with a plurality of spiral grooves along its circumference, and the plurality of spiral blocks correspond to and match the plurality of spiral grooves in a one-to-one manner; a third bevel gear is sleeved and fixed on the outer wall of the vertical tube, and a fourth bevel gear is fixedly connected to one end of the horizontal axis close to the vertical tube, and the third bevel gear is meshed with the fourth bevel gear; the spherical block can abut the side wall of the detection plate.

[0021] By adopting the above scheme, the detection plate drives the spherical block to move when it is flipped, and the movement of the spherical block drives the vertical rod to move. At this time, the vertical rod drives the vertical tube to rotate under the action of the spiral block and the spiral groove, and the rotation of the vertical tube drives the third bevel gear to rotate, and the rotation of the third bevel gear drives the fourth bevel gear to rotate, and the rotation of the fourth bevel gear can drive the horizontal axis to rotate; the driving rotation component is provided to facilitate driving the horizontal axis to rotate.

[0022] The present application provides a detection method for an on-site air tightness detection device for doors and windows, which adopts the following technical solution:

[0023] A detection method of a door and window on-site air tightness detection device comprises the following steps:

[0024] First move the detection device to the designated position, then remove the cover plate, put powder into the front hole, and then start the detection; when the detection is completed, if powder enters the rear hole, the transparent plate is driven to separate from the detection plate through the driving component, and then the detection plate is flipped through the flipping mechanism, so that the powder in the rear hole can be cleaned.

[0025] In summary, this application has the following beneficial effects:

[0026] 1. First move the detection device to the designated position, then remove the cover plate, put powder into the front hole, and then start the detection; when the detection is completed, if powder enters the rear hole, the transparent plate is driven to separate from the detection plate by the driving component, and then the detection plate is flipped by the flipping mechanism, so that the powder in the rear hole can be cleaned; In summary, by adopting the above scheme, it is convenient to clean the powder in the rear hole;

[0027] 2. The movement of the transparent plate drives the push rod to move. When the push rod moves to contact with the rotating plate, the transparent plate continues to move. Then the rotating plate rotates. The rotation of the rotating plate drives the connecting rod to move. The movement of the connecting rod drives the moving rod to move. The movement of the moving rod drives the rack to move. The movement of the rack drives the spur gear to rotate. The rotation of the spur gear drives the rotating shaft to rotate. The rotation of the rotating shaft drives the detection plate to flip. In summary, the flipping mechanism is set to facilitate driving the detection plate to flip.

[0028] 3. First, the horizontal axis is driven to rotate by the driving assembly. The rotation of the horizontal axis drives the cam to rotate. The cam rotates and drives the abutment plate to move back and forth under the action of the third spring. The reciprocating movement of the abutment plate can vibrate the detection plate. In summary, the vibration mechanism is set up to facilitate the vibration of the detection plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0030] Figure 2 This is a structural diagram highlighting the driving assembly in the embodiment of the present application;

[0031] Figure 3 This is a structural schematic diagram highlighting the flipping mechanism in the embodiment of the present application;

[0032] Figure 4 This is a structural schematic diagram highlighting the powder receiving mechanism in the embodiment of the present application;

[0033] Figure 5 This is a structural schematic diagram highlighting the vibration mechanism in the embodiment of the present application;

[0034] Figure 6 This is a structural schematic diagram highlighting the spiral block and the spiral groove in the embodiment of the present application.

[0035] Explanation of the reference numerals: 1. fixed base; 2. mounting plate; 3. detection plate; 31. front hole; 32. rear hole; 33. cover plate; 4. transparent plate; 41. through hole; 5. drive assembly; 51. lead screw; 52. first guide rod; 53. drive motor; 54. first bevel gear; 55. second bevel gear; 6. flip mechanism; 61. rotating plate; 62. connecting rod; 63. moving rod; 631. first vertical block; 632. second guide rod; 64. sliding sleeve; 65. first spring; 66. rack; 67. rotating shaft; 68. spur gear; 69. push rod; 7. powder receiving mechanism; 71. swallow Tail groove; 72, dovetail plate; 73, vertical plate; 74, ash box; 75, second vertical block; 76, second spring; 77, guide wheel; 78, rope body; 8, vibration mechanism; 81, horizontal axis; 82, cam; 83, abutment plate; 84, horizontal block; 85, third guide rod; 86, third spring; 87, abutment rod; 9, driving assembly; 91, vertical pipe; 911, spiral groove; 92, vertical rod; 921, spiral block; 93, spherical block; 94, fixing plate; 95, limit ring; 96, connecting block; 97, fourth spring; 98, third bevel gear; 99, fourth bevel gear. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-6 This application is described in further detail.

[0037] The same parts are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper", "lower", "bottom" and "top" used in the following description refer to directions in the drawings, and the words "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0038] The present application discloses a door and window on-site air tightness detection device, comprising a fixed base 1, a mounting plate 2, a detection plate 3, a front hole 31 and a rear hole 32; a transparent plate 4 is slidably arranged on the mounting plate 2 along its length direction, and a driving assembly 5 for driving the transparent plate 4 to move is installed on the mounting plate 2; the transparent plate 4 abuts against one side of the detection plate 3, and a cover plate 33 abuts against the side of the detection plate 3 away from the transparent plate 4, and the cover plate 33 is bolted to the bottom of the transparent plate 4 by a countersunk bolt; a flipping mechanism 6 for driving the detection plate 3 to flip is installed on the mounting plate 2. First, the detection device is moved to a designated position, and then the cover plate 33 is removed, and powder is put into the front hole 31, and then the detection can be started; after the detection is completed, if powder enters the rear hole 32, at this time, the transparent plate 4 is driven to separate from the detection plate 3 by the driving assembly 5, and then the detection plate 3 is flipped by the flipping mechanism 6, so that the powder in the rear hole 32 can be cleaned; in summary, by adopting the above scheme, it is convenient to clean the powder in the rear hole 32.

[0039] The driving assembly 5 includes a lead screw 51 horizontally rotatably connected to the mounting plate 2 through a bearing and a first guide rod 52 horizontally fixed to the mounting plate 2; the transparent plate 4 is threadedly connected to the lead screw 51 and slidably connected to the first guide rod 52 along the length direction of the mounting plate 2; a driving motor 53 is installed on the top of the mounting plate 2, and the output shaft of the driving motor 53 is fixedly connected to the first bevel gear 54, and the lead screw 51 is sleeved and fixed with a second bevel gear 55, and the first bevel gear 54 is meshed with the second bevel gear 55. When it is necessary to drive the transparent plate 4 to move, the driving motor 53 is started first, and at this time, the output shaft of the driving motor 53 drives the first bevel gear 54 to rotate, the first bevel gear 54 rotates to drive the second bevel gear 55 to rotate, and the second bevel gear 55 rotates to drive the lead screw 51 to rotate, and the lead screw 51 rotates to drive the transparent plate 4 to move; the driving assembly 5 is provided to facilitate driving the transparent plate 4 to move.

[0040] The flip mechanism 6 includes a rotating plate 61 rotatably connected to the mounting plate 2 through a bearing, a connecting rod 62 hinged to one end of the rotating plate 61, and a moving rod 63 hinged to the end of the connecting rod 62 away from the rotating plate 61; a through hole 41 for the moving rod 63 to pass through in the horizontal direction is opened on the transparent plate 4, a first vertical block 631 is fixedly connected to the bottom of the moving rod 63, a second guide rod 632 is fixedly connected to one side of the first vertical block 631, a sliding sleeve 64 is installed on the mounting plate 2, and the second guide rod 63 2 is slidably connected to the sliding sleeve 64; a first spring 65 is arranged between the sliding sleeve 64 and the first vertical block 631; a rack 66 is installed on the top of the end of the moving rod 63 away from the connecting rod 62, a rotating shaft 67 is fixed on the top of the detection plate 3, the rotating shaft 67 is rotatably connected to the mounting plate 2, a spur gear 68 is sleeved and fixed on the rotating shaft 67, and the spur gear 68 is meshed with the rack 66; a push rod 69 is fixed on the side of the transparent plate 4 away from the detection plate 3, and the push rod 69 can abut against one side of the rotating plate 61. The movement of the transparent plate 4 drives the push rod 69 to move. When the push rod 69 moves to contact with the rotating plate 61, it continues to drive the transparent plate 4 to move. Then the rotating plate 61 rotates. The rotation of the rotating plate 61 drives the connecting rod 62 to move. The movement of the connecting rod 62 drives the moving rod 63 to move. The movement of the moving rod 63 drives the rack 66 to move. The movement of the rack 66 drives the spur gear 68 to rotate. The rotation of the spur gear 68 drives the rotating shaft 67 to rotate. The rotation of the rotating shaft 67 drives the detection plate 3 to flip. In summary, the set flipping mechanism 6 is convenient for driving the detection plate 3 to flip.

[0041] A powder receiving mechanism 7 for receiving dust is installed on the mounting plate 2 ; the powder receiving mechanism 7 is provided to facilitate receiving the powder flowing out of the rear hole 32 .

[0042] The powder receiving mechanism 7 includes a dovetail groove 71 provided at the bottom of the mounting plate 2, a dovetail plate 72 slidably connected to the dovetail groove 71 along the length direction of the mounting plate 2, a vertical plate 73 fixed to the bottom of the dovetail plate 72, an ash receiving box 74 horizontally bolted to the bottom of the vertical plate 73, a second vertical block 75 installed at the bottom of the mounting plate 2, and a plurality of second springs 76 arranged between the vertical plate 73 and the second vertical block 75; when the transparent plate 4 abuts against the detection plate 3, the second spring 76 is in a compressed state, a guide wheel 77 is installed on the mounting plate 2, a rope body 78 is arranged on the guide wheel 77, and the two ends of the rope body 78 are respectively fixed to the transparent plate 4 and the vertical plate 73. When the detection plate 3 flips, the ash receiving box 74 moves to the bottom of the detection plate 3 under the action of the second spring 76, so as to facilitate the collection of the powder flowing out of the detection plate 3.

[0043] A vibration mechanism 8 for vibrating the detection plate 3 is installed on the mounting plate 2 ; the vibration mechanism 8 is provided to facilitate the vibration of the detection plate 3 , so as to avoid residual powder on the detection plate 3 .

[0044] The vibration mechanism 8 includes a horizontal shaft 81 rotatably connected to the mounting plate 2 through a bearing, a cam 82 eccentrically connected to one end of the horizontal shaft 81, and an abutment plate 83 abutting against the circumferential surface of the cam 82; a horizontal block 84 is fixedly connected to the side wall of the mounting plate 2, a third guide rod 85 is slidably connected to the horizontal block 84, the top of the third guide rod 85 is fixedly connected to the bottom of the abutment plate 83, and a third spring 86 is arranged between the abutment plate 83 and the horizontal block 84; an abutment rod 87 is fixedly connected to the bottom of the abutment plate 83, and one end of the abutment rod 87 away from the abutment plate 83 can abut against the detection plate 3; a driving component 9 for driving the horizontal shaft 81 to rotate is installed on the mounting plate 2. First, the horizontal shaft 81 is driven to rotate through the driving assembly 9, and the rotation of the horizontal shaft 81 drives the cam 82 to rotate. The cam 82 rotates and drives the abutment plate 83 to move back and forth under the action of the third spring 86. The reciprocating movement of the abutment plate 83 can vibrate the detection plate 3; in summary, the vibration mechanism 8 is set to facilitate the vibration of the detection plate 3.

[0045] The driving assembly 9 includes a vertical tube 91 connected to the side wall of the mounting plate 2 by a bearing, a vertical rod 92 vertically arranged in the vertical tube 91, a spherical block 93 fixed to the bottom of the vertical rod 92, and a fixed plate 94 fixed to the side wall of the mounting plate 2; one end of the vertical rod 92 penetrates and is slidably connected to the fixed plate 94, and one end of the vertical rod 92 away from the spherical block 93 is threadedly connected to a limit ring 95; a connecting block 96 is fixed to the side wall of the vertical rod 92, and a fourth spring is arranged between the connecting block 96 and the fixed plate 94 97; the side wall of the vertical rod 92 is fixedly connected with a plurality of spiral blocks 921 in sequence along its circumference, and the inner wall of the vertical tube 91 is provided with a plurality of spiral grooves 911 in sequence along its circumference, and the plurality of spiral blocks 921 are matched with the plurality of spiral grooves 911 in one-to-one correspondence; the outer wall of the vertical tube 91 is sleeved with a third bevel gear 98, and the end of the horizontal shaft 81 close to the vertical tube 91 is fixedly connected with a fourth bevel gear 99, and the third bevel gear 98 is meshed with the fourth bevel gear 99; the spherical block 93 can abut against the side wall of the detection plate 3. When the detection plate 3 is turned over, the spherical block 93 is driven to move, and the movement of the spherical block 93 drives the vertical rod 92 to move. At this time, the vertical rod 92 drives the vertical tube 91 to rotate under the action of the spiral blocks 921 and the spiral grooves 911, and the vertical tube 91 rotates to drive the third bevel gear 98 to rotate, and the third bevel gear 98 rotates to drive the fourth bevel gear 99 to rotate, and the fourth bevel gear 99 rotates to drive the horizontal shaft 81 to rotate; the driving assembly 9 is provided to facilitate driving the horizontal shaft 81 to rotate.

[0046] The present application discloses a detection method of a door and window on-site air tightness detection device, comprising the following steps:

[0047] First, move the detection device to the specified position, then remove the cover plate 33, put powder into the front hole 31, and then start the detection; when the detection is completed, if powder enters the rear hole 32, the transparent plate 4 is driven to separate from the detection plate 3 by the driving component 5, and then the detection plate 3 is flipped by the flipping mechanism 6, so that the powder in the rear hole 32 can be cleaned.

[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A door and window on-site air tightness detection device, characterized in that: The invention comprises a fixed base (1), a mounting plate (2), a detection plate (3), a front hole (31) and a rear hole (32); a transparent plate (4) is slidably arranged on the mounting plate (2), and a driving component (5) for driving the transparent plate (4) to move is installed on the mounting plate (2); the transparent plate (4) abuts against one side of the detection plate (3), and a cover plate (33) abuts against the side of the detection plate (3) away from the transparent plate (4), and the cover plate (33) is bolted to the bottom of the transparent plate (4); and a flipping mechanism (6) for driving the detection plate (3) to flip is installed on the mounting plate (2).

2. The on-site air tightness detection device for doors and windows according to claim 1, characterized in that: The driving assembly (5) comprises a lead screw (51) rotatably connected to the mounting plate (2) and a first guide rod (52) fixedly connected to the mounting plate (2); the transparent plate (4) is threadedly connected to the lead screw (51) and slidably connected to the first guide rod (52); a driving motor (53) is mounted on the top of the mounting plate (2); an output shaft of the driving motor (53) is fixedly connected to a first bevel gear (54); a second bevel gear (55) is sleeved and fixedly mounted on the lead screw (51); the first bevel gear (54) is meshed with the second bevel gear (55).

3. The on-site air tightness detection device for doors and windows according to claim 1, characterized in that: The flip mechanism (6) comprises a rotating plate (61) rotatably connected to the mounting plate (2), a connecting rod (62) hinged to one end of the rotating plate (61), and a moving rod (63) hinged to one end of the connecting rod (62) away from the rotating plate (61); the transparent plate (4) is provided with a through hole (41) for the moving rod (63) to pass through, the bottom of the moving rod (63) is fixedly connected to a first vertical block (631), one side of the first vertical block (631) is fixedly connected to a second guide rod (632), a sliding sleeve (64) is installed on the mounting plate (2), and the second guide rod (632) is slidably connected to the sliding sleeve ( 64); a first spring (65) is arranged between the sliding sleeve (64) and the first vertical block (631); a rack (66) is installed on the top of the moving rod (63) away from the connecting rod (62), a rotating shaft (67) is fixed on the top of the detection plate (3), the rotating shaft (67) is rotatably connected to the mounting plate (2), a spur gear (68) is fixed on the rotating shaft (67), and the spur gear (68) is meshed with the rack (66); a push rod (69) is fixed on the side of the transparent plate (4) away from the detection plate (3), and the push rod (69) can abut against one side of the rotating plate (61).

4. The on-site air tightness detection device for doors and windows according to claim 1, characterized in that: A powder receiving mechanism (7) for receiving dust is installed on the installation plate (2).

5. The on-site air tightness detection device for doors and windows according to claim 4, characterized in that: The powder receiving mechanism (7) comprises a dovetail groove (71) provided at the bottom of the mounting plate (2), a dovetail plate (72) slidably connected to the dovetail groove (71), a vertical plate (73) fixedly connected to the bottom of the dovetail plate (72), an ash receiving box (74) bolted to the bottom of the vertical plate (73), a second vertical block (75) installed at the bottom of the mounting plate (2), and a plurality of second springs (76) arranged between the vertical plate (73) and the second vertical block (75); when the transparent plate (4) abuts against the detection plate (3), the second springs (76) are in a compressed state, a guide wheel (77) is installed on the mounting plate (2), a rope body (78) is arranged on the guide wheel (77), and two ends of the rope body (78) are respectively fixedly connected to the transparent plate (4) and the vertical plate (73).

6. The on-site air tightness detection device for doors and windows according to claim 3, characterized in that: A vibration mechanism (8) for vibrating the detection plate (3) is installed on the installation plate (2).

7. The on-site air tightness detection device for doors and windows according to claim 6, characterized in that: The vibration mechanism (8) comprises a horizontal shaft (81) rotatably connected to the mounting plate (2), a cam (82) eccentrically connected to one end of the horizontal shaft (81), and an abutment plate (83) abutting against the circumferential surface of the cam (82); a horizontal block (84) is fixedly connected to the side wall of the mounting plate (2); a third guide rod (85) is slidably connected to the horizontal block (84); the top of the third guide rod (85) is fixedly connected to the bottom of the abutment plate (83); a third spring (86) is arranged between the abutment plate (83) and the horizontal block (84); an abutment rod (87) is fixedly connected to the bottom of the abutment plate (83); an end of the abutment rod (87) away from the abutment plate (83) can abut against the detection plate (3); and a driving assembly (9) for driving the horizontal shaft (81) to rotate is installed on the mounting plate (2).

8. The on-site air tightness detection device for doors and windows according to claim 7, characterized in that: The driving assembly (9) comprises a vertical tube (91) rotatably connected to the side wall of the mounting plate (2), a vertical rod (92) arranged in the vertical tube (91), a spherical block (93) fixed to the bottom of the vertical rod (92), and a fixed plate (94) fixed to the side wall of the mounting plate (2); one end of the vertical rod (92) penetrates and is slidably connected to the fixed plate (94), and one end of the vertical rod (92) away from the spherical block (93) is threadedly connected to a limit ring (95); a connecting block (96) is fixed to the side wall of the vertical rod (92), and a fourth spring (97) is arranged between the connecting block (96) and the fixed plate (94). The side wall of the vertical rod (92) is fixedly connected with a plurality of spiral blocks (921) in sequence along its circumference, and the inner wall of the vertical tube (91) is opened with a plurality of spiral grooves (911) in sequence along its circumference, and the plurality of spiral blocks (921) are matched with the plurality of spiral grooves (911) in a one-to-one correspondence; the outer side wall of the vertical tube (91) is sleeved with a third bevel gear (98) fixed thereto, and one end of the horizontal shaft (81) close to the vertical tube (91) is fixedly connected with a fourth bevel gear (99), and the third bevel gear (98) is meshed with the fourth bevel gear (99); the spherical block (93) can abut against the side wall of the detection plate (3).

9. A detection method for an on-site air tightness detection device for doors and windows, based on the on-site air tightness detection device for doors and windows according to any one of claims 1 to 8, characterized in that: The following steps are involved: First, the detection device is moved to a designated position, and then the cover plate (33) is removed, and powder is placed into the front hole (31), and then the detection can be started; when the detection is completed, if powder enters the rear hole (32), the transparent plate (4) is driven to separate from the detection plate (3) by the driving component (5), and then the detection plate (3) is flipped by the flipping mechanism (6), so that the powder in the rear hole (32) can be cleaned.

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