CN112378598A - Detection device and detection method for detecting air tightness of building external window - Google Patents

Abstract

The utility model relates to a detect detection device and detection method of building exterior window gas tightness, it includes framework and mounting, the framework is provided with two, two frameworks stack and can dismantle the connection setting, two frameworks all include a plurality of frame strip end to end setting, the frame strip includes first half frame and second half frame, second half frame is close to first half frame one end rigid coupling and has inserted the strip, first half frame is just having seted up the slot to inserting strip department, it inserts and locates the joint setting in the slot to insert the strip, the mounting is provided with a plurality ofly, a plurality of mountings can be dismantled and connect in the inner wall of one of them framework, it has seted up the holding tank to insert one side that the strip is close to the mounting, be provided with a plurality of extensible members in the holding tank, a plurality of extensible members. The application has the effect of improving the use convenience.

Description

Detection device and detection method for detecting air tightness of building external window

Technical Field

The application relates to the field of airtightness detection devices, in particular to a detection device and a detection method for detecting airtightness of an external window of a building.

Background

The building external window is an important component of a building envelope structure, plays roles in lighting, sun screening, sun shading, ventilation, water resistance, sound insulation and the like, and has air tightness which is an important index in various performances of the building external window.

The existing Chinese patent with reference to the publication No. CN111089683A discloses a sealing device for building exterior window air tightness field detection and a using method thereof, the sealing device comprises a first corner plate, a second corner plate and a support frame, sliding grooves are respectively arranged at two ends of the first corner plate and the second corner plate, extension plates are placed in the sliding grooves, a sliding mechanism connected with the extension plates is arranged at the inner top of each sliding groove, butt joints are fixed at the tail ends of the extension plates, insertion blocks are respectively fixed on the side walls of the butt joints at the two ends of the second corner plate, locking mechanisms are arranged in the insertion blocks, slots corresponding to the insertion blocks are respectively arranged on the side walls of the butt joints at the two ends of the first corner plate, backing plates are respectively fixed at the upper ends of the first corner plate and the second corner plate, grooves are arranged at the upper ends of the backing plates, and insertion mechanisms are arranged in the grooves. The invention has reasonable structure, can adapt to the sealing of different external window sizes, has good sealing effect and can detect the specific position of gas escape.

In view of the above-mentioned related art, the inventor believes that the sealing device needs to be installed and adjusted in multiple places, and has the defect of poor convenience in use.

Disclosure of Invention

In order to improve the convenience of use, the application provides a detection device and a detection method for detecting the air tightness of an external window of a building.

In a first aspect, the present application provides a detection apparatus and a detection method for detecting building exterior window air tightness, which adopt the following technical solutions:

the utility model provides a detect detection apparatus of building exterior window gas tightness, including framework and mounting, the framework is provided with two, two frameworks stack and to dismantle the connection setting, two frameworks all include a plurality of frame strip end to end setting, the frame strip includes first half frame and second half frame, the second half frame is close to first half frame one end rigid coupling has the cutting, first half frame is just having seted up the slot to cutting department, the cutting is inserted and is located the interior joint setting of slot, the mounting is provided with a plurality ofly, a plurality of mountings can be dismantled and connect in the inner wall of one of them framework, the holding tank has been seted up to one side that the cutting is close to the mounting, be provided with a plurality of extensible members in the holding tank, a plurality of extensible members arrange in.

Through adopting above-mentioned technical scheme, detection device arranges indoorly in, according to the size of exterior window, make first half frame and second half frame stretch towards the direction of keeping away from each other or being close to, the cutting is taken out from the slot, the extensible member pops out from the holding tank one by one simultaneously, extensible member and wall body butt, be fixed in the mounting on the wall body around the exterior window, can dismantle framework and wall body butt of being connected with the mounting, place the plastic film in can dismantle the framework of being connected with the mounting, adjust another framework afterwards and install in the framework with the wall body butt, the extensible member of the framework of keeping away from the mounting is with the framework butt that is close to the mounting, two frameworks press from both sides the plastic film and tightly and totally butt seal, the framework that is close to the mounting simultaneously is sealed with the wall body, the convenience of using has been.

Preferably, the telescopic part comprises a first spring and a sealing element, the first spring is fixedly connected in the accommodating groove, and the sealing element is fixedly connected at one end, far away from the inserting strip, of the first spring.

Through adopting above-mentioned technical scheme, when the size according to the exterior window is adjusted the framework, when first half frame and second half frame move towards the direction of keeping away from each other, the cutting is taken out from the slot, and the extensible member breaks away from the slot one by one simultaneously, and first spring extends, and first spring promotes the sealing member and moves towards the direction of keeping away from the cutting, sealing member and wall body butt, and the sealing member is sealed with first half frame and second half frame butt, has improved holistic leakproofness and the convenience that the framework was adjusted.

Preferably, the side wall of the sealing element is abutted to the inner wall of the accommodating groove, and the first spring is arranged in the accommodating groove and the sealing element.

By adopting the technical scheme, the first spring is arranged in the accommodating groove and the sealing element, so that the corrosion degree of the first spring is reduced, and the service life of the first spring is prolonged; meanwhile, the sealing element and the inner wall of the accommodating groove are abutted to form sealing, the sealing performance of the telescopic piece is guaranteed, the gas is reduced to pass through the sealing element, and the overall sealing performance is improved.

Preferably, a groove is formed in one side, close to the fixing part, of each of the first half frame and the second half frame, a gas strip is fixedly arranged in each groove, the gas strips at the positions of the adjacent first half frame and the second half frame are communicated, an air bag is communicated with each gas strip, and an air valve is arranged on each air bag.

Through adopting above-mentioned technical scheme, be close to half first frame and half second frame and the wall body contact of mounting, open the pneumatic valve, the extrusion gasbag, aerify in to the air strip, close the pneumatic valve, be full of gas in the air strip, when the wall body unevenness, the air strip is filled unevenness department, make air strip and wall body butt completely, the leakproofness between framework and the wall body has further been improved, and simultaneously, the air strip of the framework of keeping away from the mounting seals with the complete butt of another framework, the leakproofness between two frameworks has been improved, holistic leakproofness has been improved.

Preferably, the one side rigid coupling that the frame strip that is close to the mounting deviates from the mounting has the grafting strip, and the framework of keeping away from the mounting is just to having seted up the inserting groove to grafting strip department, is provided with the reinforcement in the inserting groove, and the grafting strip is inserted and is located the inserting groove, and the reinforcement sets up with the joint of inserting strip.

Through adopting above-mentioned technical scheme, when installing another framework in the framework that is close to the mounting, the grafting strip is inserted and is located the inserting groove of principle mounting framework, and the grafting strip is inserted and is located the inserting groove, and the mounting becomes the joint with the grafting strip simultaneously, and it is convenient fast to install, has improved the convenience of two framework installations, reaches better result of use.

Preferably, the reinforcement includes second spring and locating part, has seted up the standing groove in the inserting groove, and second spring rigid coupling is in the standing groove, and the locating part rigid coupling is kept away from the one end of grafting strip in the second spring, and grafting strip just runs through in locating part department and has seted up the spacing groove, and the locating part is inserted and is located the setting of spacing inslot joint.

Through adopting above-mentioned technical scheme, when the grafting strip is inserted and is located the inserting groove, locating part and the lateral wall butt of grafting strip, locating part and second spring are arranged in the standing groove, and when locating part and spacing groove just to the time, the second spring extends, and the second spring promotes the locating part towards the direction that is close to the spacing groove, and the locating part is inserted and is located the spacing inslot and form the joint, and the locating part carries on spacingly to the framework that is close to the mounting, has improved the stability of two framework connections.

Preferably, the mounting includes connecting rod and screw rod, and the connecting rod can be dismantled and connect in the inner wall of framework, and screw rod threaded connection keeps away from the one end of framework in the connecting rod.

Through adopting above-mentioned technical scheme, when being fixed in the mounting on the wall body around the exterior window, wall body department is arranged in to the connecting rod, and rotatory screw rod, screw rod remove towards the direction that is close to the wall body, and the screw rod joint of a plurality of mountings is on the wall body around the exterior window to it is fixed with the mounting, has improved the fixed convenience of mounting.

Preferably, the jack has been seted up to the framework that is close to the mounting, and the connecting rod is inserted and is located the setting of jack internal joint, and the connecting rod is close to the inboard department of framework and has seted up and accomodate the groove, accomodates the inslot rigid coupling and has the third spring, and the one end rigid coupling that the connecting rod was kept away from to the third spring has the fastener, and the framework that is close to the mounting just sets up the draw-in groove that runs through to fastener department, and the fastener is inserted.

Through adopting above-mentioned technical scheme, when installing the mounting in the framework, the connecting rod is inserted and is located in the jack, fastener and jack inner wall butt on the connecting rod, and the fastener is arranged in and is accomodate the inslot, and when the fastener just to the draw-in groove, the third spring extends, and the third spring promotes the fastener towards the direction that is close to the draw-in groove, and the fastener is inserted and is located the draw-in groove and form the joint, and the fastener is spacing to the connecting rod, has improved the convenience of connecting rod installation.

Preferably, be provided with the guide between connecting rod and the fastener, the guide is including fixed pipe and telescopic link, and fixed pipe rigid coupling is in accomodating the inslot, and the telescopic link is inserted and is located in the fixed pipe and slide and connect the setting, and the telescopic link is kept away from fixed pipe one end rigid coupling and is close to connecting rod one side in the fastener.

Through adopting above-mentioned technical scheme, when the third spring is flexible, the telescopic link is inserted and is located the fixed tube and slide along the inner wall of fixed tube, and the direction that the guide is on a parallel with the guide is led the third spring, has reduced the degree that rocks when the third spring uses, and the fastener is inserted and is located the draw-in groove and form the joint when fixed with the connecting rod simultaneously, and the guide has reduced the crooked degree of third spring, has improved the fixed stability of connecting rod.

In a second aspect, the present application provides a method for detecting a device for detecting the air tightness of an external window of a building, which adopts the following technical scheme:

a detection method of a detection device for detecting the air tightness of an external window of a building comprises the following steps:

s1, cleaning the wall: cleaning the wall around the outer window, and wiping off dust adsorbed on the wall;

s2, mounting a fixing piece: inserting the connecting rod into the jack of the frame body, inserting the clamping piece into the clamping groove, and fixing the connecting rod;

s3, adjusting frame body: according to the size of the external window, the first half frame and the second half frame move towards the direction close to or away from each other, the telescopic pieces sequentially extend out of the accommodating grooves, and the frame strips and the telescopic pieces are abutted and sealed with the wall body;

s4, fixing a plastic film: placing a plastic film on the frame body close to the fixing part, adjusting the other frame body and placing the other frame body on the frame body close to the fixing part, inserting the inserting strips into the inserting grooves and clamping the inserting strips, and fixing the plastic film between the two frame bodies and sealing the plastic film;

s5, detecting airtightness: and plugging an air outlet of the air blower and the differential pressure sensor into the film, and observing the reading of the differential pressure sensor after standing to detect the air tightness of the outer window.

By adopting the technical scheme, the fixing piece is fixed on the frame body, so that the fixing piece is convenient to disassemble, assemble and replace, and the convenience of disassembling and assembling the fixing piece is improved; the frame body is adjusted according to the size of the outer window, so that the outer window frame is suitable for outer windows with different sizes, and the application range and the use convenience are improved; the fixing piece is fixed on the wall body around the outer window, so that the fixing is convenient and quick, and the convenience of fixing is improved; the plastic film is placed on the frame body, then the other frame body is fixed on the frame body close to the fixing part, and the plastic film is clamped between the two frame bodies, so that the convenience of fixing the plastic film is improved; two frameworks and plastic film butt and sealed setting have further improved the leakproofness between framework and the plastic film, have improved the convenience and the leakproofness of whole use.

In summary, the present application includes at least one of the following beneficial technical effects:

1. by arranging the frame body, the effect of improving the convenience of adjustment and use of the frame body is achieved;

2. by arranging the reinforcing member, the effect of improving the installation stability and convenience of the two frame bodies is achieved;

3. through setting up the mounting, produced the effect that improves fixed convenience.

Drawings

FIG. 1 is a schematic overall structure of the present application;

FIG. 2 is a cross-sectional view highlighting the guide;

FIG. 3 is a cross-sectional view highlighting the telescoping member;

figure 4 is a cross-sectional view highlighting the reinforcement member.

Description of reference numerals: 1. a frame body; 11. frame strips; 111. a first half frame; 1111. a slot; 112. a second half frame; 1121. cutting; 11211. accommodating grooves; 2. a fixing member; 21. a connecting rod; 211. a receiving groove; 2111. a third spring; 2112. a fastener; 22. a screw; 3. a telescoping member; 31. a first spring; 32. a seal member; 4. a groove; 41. air stripping; 411. an air bag; 4111. an air valve; 5. inserting strips; 51. inserting grooves; 511. a reinforcement; 5111. a second spring; 5112. a limiting member; 5113. a limiting groove; 512. a placement groove; 6. a jack; 7. a card slot; 8. a guide member; 81. a fixed tube; 82. a telescopic rod.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses a detection device for detecting air tightness of an external window of a building. Referring to fig. 1, a detection device for detecting air tightness of an external window of a building comprises frame bodies 1 and fixing pieces 2, the frame bodies 1 are provided with two, the two frame bodies 1 are stacked, detachably connected and arranged, the fixing pieces 2 are provided with a plurality of fixing pieces 2, the fixing pieces 2 are detachably connected to the inner wall of one of the frame bodies 1, the fixing pieces 2 are fixed on a wall body around the external window, the frame bodies 1 detachably connected with the fixing pieces 2 are abutted to and sealed with the wall body, a plastic film is placed on the frame bodies 1, then the other frame body 1 is installed on the frame body 1 close to the fixing piece 2, and the plastic film is clamped and fixed.

Referring to fig. 2, mounting 2 includes connecting rod 21 and screw rod 22, mounting 2 is provided with four, jack 6 has been seted up to framework 1 that is close to mounting 2, connecting rod 21 inserts and locates in jack 6, connecting rod 21 has been close to framework 1 inboard department and has been seted up and has been accomodate groove 211, it has third spring 2111 to accomodate the interior rigid coupling of groove 211, the one end rigid coupling that connecting rod 21 was kept away from to third spring 2111 has fastener 2112, framework 1 that is close to mounting 2 just offers the draw-in groove 7 that runs through to fastener 2112 department, fastener 2112 inserts and locates the joint setting in draw-in groove 7, screw rod 22 threaded connection is in the one end that framework 1. When the fixing piece 2 is installed on the frame body 1, the clamping piece 2112 on the connecting rod 21 abuts against the inner wall of the insertion hole 6 when the connecting rod 21 is inserted into the insertion hole 6, the inner wall of the insertion hole 6 presses the clamping piece 2112 to be placed in the accommodating groove 211, the connecting rod 21 is gradually inserted into the insertion hole 6, when the clamping piece 2112 is over against the clamping groove 7, the third spring 2111 extends, the third spring 2111 pushes the clamping piece 2112 towards the direction close to the clamping groove 7, the clamping piece 2112 is inserted into the clamping groove 7 to form clamping, and the clamping piece 2112 limits the connecting rod 21, so that the connecting rod 21 is; when the fixing piece 2 is disassembled, the clamping piece 2112 is pushed in the direction close to the connecting rod 21, the clamping key is contracted into the accommodating groove 211, the connecting rod 21 is pulled out, and the convenience of disassembling and assembling the connecting rod 21 is improved; the frame body 1 is placed on a wall body, the screw rods 22 are rotated, the screw rods 22 move towards the direction close to the wall body, the screw rods 22 of the fixing pieces 2 are clamped on the wall body around the outer window, and therefore the fixing pieces 2 are fixed on the wall body around the outer window.

In order to further improve the stability of fixing the connecting rod 21, referring to fig. 2, a guide 8 is arranged between the connecting rod 21 and the clamping piece 2112, the guide 8 includes a fixing tube 81 and a telescopic rod 82, the fixing tube 81 is fixedly connected in the accommodating groove 211, the telescopic rod 82 is inserted in the fixing tube 81 and slidably connected, one end of the telescopic rod 82 far away from the fixing tube 81 is fixedly connected to one side of the clamping piece 2112 close to the connecting rod 21, and the guide 8 is arranged in the third spring 2111. When the third spring 2111 stretches, the telescopic rod 82 is inserted into the fixed pipe 81 and slides along the inner wall of the fixed pipe 81, the guide piece 8 guides the third spring 2111 from the direction parallel to the guide piece 8, the shaking degree and the bending degree of the third spring 2111 during use are reduced, and the fixing stability of the connecting rod 21 is improved.

Referring to fig. 1 and fig. 3, the two frame bodies 1 each include a plurality of frame strips 11 disposed end to end, each frame strip 11 includes a first half frame 111 and a second half frame 112, the second half frame 112 is fixed to an end of the first half frame 111 near the insertion strip 1121, the first half frame 111 is opposite to the insertion strip 1121 and is provided with an insertion slot 1111, the insertion strip 1121 is inserted into the insertion slot 1111 and is clamped, one side of the insertion strip 1121 near the fixing member 2 is provided with a receiving slot 11211, the receiving slot 11211 is provided with a plurality of expansion members 3 inside, the expansion members 3 include a first spring 31 and a sealing member 32, the first spring 31 is fixed to the receiving slot 11211, the sealing member 32 is fixed to an end of the first spring 31 far away from the insertion strip 1121, the side wall of the sealing member 32 is abutted to the inner wall of the receiving slot 11211, the plurality of sealing members 32 are sequentially arranged and abutted to each other.

When the frame body 1 close to the fixing part 2 is placed on a wall body around an external window, the first half frame 111 and the second half frame 112 are stretched towards the directions away from or close to each other according to the size of the external window, the insertion strip 1121 is drawn out from the insertion slot 1111, meanwhile, the telescopic parts 3 are separated from the insertion slot 1111 one by one, the first spring 31 is stretched, the first spring 31 pushes the sealing part 32 to move towards the direction away from the insertion strip 1121, the sealing part 32 is abutted against the wall body, the sealing part 32 is abutted against and sealed with the first half frame 111 and the second half frame 112, the frame body 1 is abutted against and sealed with the wall body around the external window, and the whole sealing performance and the convenience of adjusting the frame body 1 are improved.

In order to further improve the sealing performance between the frame body 1 close to the fixing member 2 and the wall body, referring to fig. 2, the first half frame 111 and the second half frame 112 are both provided with a groove 4 on one side close to the fixing member 2, a gas strip 41 is fixedly arranged in the groove 4, the gas strips 41 at the adjacent first half frame 111 and second half frame 112 are communicated and arranged, the gas strips 41 are all communicated and arranged with an air bag 411, and the air bag 411 is provided with an air valve 4111. Open pneumatic valve 4111, extrude gasbag 411, inflate in the gas strip 41, close pneumatic valve 4111, be full of gas in the gas strip 41, when the wall body is not flat, gas strip 41 fills unevenness, makes gas strip 41 and wall body complete butt, and first spring 31 promotes sealing member 32 and removes towards the direction that is close to the wall body simultaneously, and sealing member 32 and wall body butt and sealing member 32 and gas strip 41 butt are sealed, have further improved the leakproofness between framework 1 and the wall body.

Referring to fig. 4, one side of the frame strip 11 close to the fixing member 2 and deviating from the fixing member 2 is fixedly connected with eight insertion strips 5, the frame body 1 far away from the fixing member 2 is provided with an insertion groove 51 opposite to the insertion strips 5, the insertion strips 5 are inserted into the insertion groove 51, a reinforcing member 511 is provided in the insertion groove 51, the reinforcing member 511 comprises a second spring 5111 and a limiting member 5112, a placement groove 512 is provided in the insertion groove 51, the second spring 5111 is fixedly connected into the placement groove 512, the limiting member 5112 is fixedly connected into one end of the second spring 5111 far away from the insertion strips 5, the insertion strips 5 are provided with a limiting groove 5113 opposite to the limiting member 5112 in a penetrating manner, and the limiting member 5112 is inserted into.

The other frame body 1 is installed on the frame body 1 close to the fixing part 2, the size of the frame body 1 is adjusted according to the frame body 1 close to the fixing part 2, when the inserting bar 5 is inserted into the inserting groove 51, the limiting part 5112 is abutted against the side wall of the inserting bar 5, the limiting part 5112 and the second spring 5111 are placed in the placing groove 512, when the limiting part 5112 is aligned with the limiting groove 5113, the second spring 5111 extends, the second spring 5111 pushes the limiting part 5112 towards the direction close to the limiting groove 5113, the limiting part 5112 is inserted into the limiting groove 5113 to form clamping, the frame body 1 is installed on the frame body 1 close to the fixing part 2, the sealing part 32 and the air bar 41 far away from the fixing part 2 are abutted against and form sealing between the two frame bodies 1, the plastic film is arranged between the two frame bodies 1, and the sealing performance between the two frame bodies 1 and the; the limiting member 5112 limits the frame body 1 close to the fixing member 2, and fixes the two frame bodies 1, thereby improving the convenience of installation and the stability of connection of the two frame bodies 1.

The implementation principle of the detection device for detecting the air tightness of the building external window in the embodiment of the application is as follows: inserting a connecting rod 21 into the jack 6, pushing a clamping piece 2112 into the clamping groove 7 by a third spring 2111 to fix the connecting rod 21 on the frame body 1, adjusting the size of the frame body 1 according to the size of an external window, enabling the first half frame 111 and the second half frame 112 to move towards the direction close to or away from each other, enabling the telescopic pieces 3 to be separated from the accommodating grooves 11211 one by one, placing the fixing piece 2 on a wall body around the external window, rotating the screw rod 22, enabling the screw rod 22 to move towards the direction close to the wall body, enabling the screw rod 22 to be clamped with the wall body to fix the fixing piece 2 and the frame body 1 on the wall body around the external window, enabling the frame body 1 and the telescopic pieces 3 close to the fixing piece 2 to be abutted against and sealed with the wall body, placing a plastic film on the frame body 1, then placing the other frame body 1 on the frame body 1 close to the fixing piece 2, and after the air blower blows air into the plastic film and stands still, observing the reading of the differential pressure sensor to obtain the air tightness of the outer window.

The embodiment of the application also discloses a detection method of the detection device for detecting the air tightness of the building external window.

A detection method of a detection device for detecting the air tightness of an external window of a building comprises the following steps:

s1, cleaning the wall:

the wall body around the exterior window is cleaned at first, and dust adsorbed on the wall surface is wiped off, so that the installation is facilitated and the sealing performance is ensured.

S2, mounting the fixing piece 2:

insert the connecting rod 21 establish with the jack 6 of framework 1 in, when fastener 2112 just is to draw-in groove 7, third spring 2111 extends and promotes fastener 2112 and removes towards the direction that is close to draw-in groove 7, and fastener 2112 inserts and establishes and form the joint in draw-in groove 7, and fastener 2112 carries on spacingly to connecting rod 21 to fix connecting rod 21.

S3, adjustment frame 1:

according to the size of the external window, the first half frame 111 and the second half frame 112 move towards the direction of approaching to or separating from each other, the telescopic pieces 3 sequentially extend out from the accommodating grooves 11211, the frame strips 11 approaching to the fixing pieces 2 and the telescopic pieces 3 are abutted and sealed with the wall, and the sealing performance of the detection device is guaranteed.

S4, fixing a plastic film:

place the plastic film with be close to on the framework 1 of mounting 2, adjust another framework 1 and place in the framework 1 that is close to mounting 2, the grafting strip 5 is inserted and is located inserting groove 51 and the joint setting, the frame strip 11 and the extensible member 3 of keeping away from mounting 2 and the framework 1 butt that is close to mounting 2, the plastic film is fixed in between two frameworks 1 and sealed the setting.

S5, detecting airtightness:

and plugging an air outlet of the air blower and the differential pressure sensor into the film, and observing the reading of the differential pressure sensor after standing to detect the air tightness of the outer window.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. The detection device for detecting the air tightness of the building exterior window is characterized by comprising frame bodies (1) and fixing pieces (2), wherein the frame bodies (1) are arranged in two numbers, the two frame bodies (1) are stacked, detachably connected and arranged, the two frame bodies (1) respectively comprise a plurality of frame strips (11) which are connected end to end, the frame strips (11) comprise a first half frame (111) and a second half frame (112), the second half frame (112) is fixedly connected with inserting strips (1121) at the end close to the first half frame (111), the first half frame (111) is provided with inserting slots (1111) at the positions opposite to the inserting strips (1121), the inserting strips (1121) are inserted into the inserting slots (1111) and clamped and arranged, the fixing pieces (2) are arranged in a plurality, the fixing pieces (2) are detachably connected to the inner wall of one of the frame bodies (1), one side, close to the fixing pieces (2), of each inserting strip (1121) is provided with an accommodating groove (11), and a plurality of telescopic pieces (, the plurality of expansion pieces (3) are arranged in sequence and are mutually abutted.

2. The device for detecting the airtightness of the exterior window of the building according to claim 1, wherein the telescopic member (3) includes a first spring (31) and a sealing member (32), the first spring (31) is fixed in the receiving groove (11211), and the sealing member (32) is fixed at an end of the first spring (31) away from the insertion strip (1121).

3. The device for detecting the airtightness of the exterior window of the building according to claim 2, wherein the side wall of the sealing member (32) is disposed in abutment with the inner wall of the receiving groove (11211), and the first spring (31) is disposed in the receiving groove (11211) and the sealing member (32).

4. The device for detecting the air tightness of the exterior window of the building according to claim 1, wherein a groove (4) is formed in one side, close to the fixing member (2), of each of the first half frame (111) and the second half frame (112), an air strip (41) is fixedly arranged in each groove (4), the air strips (41) at the positions, adjacent to the first half frame (111) and the second half frame (112), are communicated, air bags (411) are communicated and arranged in the air strips (41), and air valves (4111) are arranged in the air bags (411).

5. The device for detecting the air tightness of the exterior window of the building as claimed in claim 1, wherein an insertion strip (5) is fixedly connected to one side of the frame strip (11) close to the fixing member (2) away from the fixing member (2), an insertion groove (51) is formed in a position of the frame body (1) far away from the fixing member (2) and opposite to the insertion strip (5), a reinforcing member (511) is arranged in the insertion groove (51), the insertion strip (5) is inserted into the insertion groove (51), and the reinforcing member (511) and the insertion strip (1121) are clamped.

6. The device for detecting the air tightness of the external window of the building according to claim 5, wherein the reinforcing member (511) comprises a second spring (5111) and a limiting member (5112), a placing groove (512) is formed in the inserting groove (51), the second spring (5111) is fixedly connected in the placing groove (512), the limiting member (5112) is fixedly connected to one end of the second spring (5111) far away from the inserting bar (5), a limiting groove (5113) is formed in the position of the inserting bar (5) opposite to the limiting member (5112) in a penetrating manner, and the limiting member (5112) is inserted in the limiting groove (5113) and is clamped and arranged.

7. The device for detecting the airtightness of the exterior window of the building according to claim 1, wherein the fixing member (2) comprises a connecting rod (21) and a screw rod (22), the connecting rod (21) is detachably connected to the inner wall of the frame body (1), and the screw rod (22) is in threaded connection with one end of the connecting rod (21) far away from the frame body (1).

8. The device for detecting the air tightness of the external window of the building according to claim 7, wherein a jack (6) is formed in the frame body (1) close to the fixing member (2), the connecting rod (21) is inserted in the jack (6) and clamped, a containing groove (211) is formed in the position, close to the inner side of the frame body (1), of the connecting rod (21), a third spring (2111) is fixedly connected in the containing groove (211), a clamping piece (2112) is fixedly connected to one end, far away from the connecting rod (21), of the third spring (2111), a through clamping groove (7) is formed in the position, opposite to the clamping piece (2112), of the frame body (1) close to the fixing member (2), and the clamping piece (2112) is inserted in the clamping groove (7) and clamped.

9. The device for detecting the airtightness of the exterior window of the building according to claim 8, wherein a guide member (8) is disposed between the connecting rod (21) and the clip member (2112), the guide member (8) comprises a fixed tube (81) and a telescopic rod (82), the fixed tube (81) is fixedly connected to the accommodating groove (211), the telescopic rod (82) is inserted into the fixed tube (81) and slidably connected to the fixed tube, and one end of the telescopic rod (82) away from the fixed tube (81) is fixedly connected to one side of the clip member (2112) close to the connecting rod (21).

10. The method for testing a test device according to any one of claims 1 to 9, comprising the steps of:

s1, cleaning the wall: cleaning the wall around the outer window, and wiping off dust adsorbed on the wall;

s2, mounting fixture (2): the connecting rod (21) is inserted into the jack (6) of the frame body (1), the clamping piece (2112) is inserted into the clamping groove (7), and the connecting rod (21) is fixed;

s3, adjustment frame (1): according to the size of the external window, the first half frame (111) and the second half frame (112) move towards the direction of approaching to or separating from each other, the telescopic pieces (3) sequentially extend out of the accommodating groove (11211), and the frame strips (11) and the telescopic pieces (3) are abutted against and sealed with the wall body;

s4, fixing a plastic film: placing a plastic film on the frame body (1) close to the fixing piece (2), adjusting the other frame body (1) and placing the other frame body on the frame body (1) close to the fixing piece (2), inserting and connecting the inserting strips (5) in the inserting and connecting grooves (51) in a clamping manner, and fixing the plastic film between the two frame bodies (1) in a sealing manner;

s5, detecting airtightness: and plugging an air outlet of the air blower and the differential pressure sensor into the film, and observing the reading of the differential pressure sensor after standing to detect the air tightness of the outer window.

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