CN118275054A - A non-destructive airtightness detection device for doors and windows - Google Patents

Abstract

The present invention relates to a non-destructive airtightness detection device for doors and windows after the installation and commissioning of engineering doors and windows is completed, and belongs to the technical field of airtightness detection of doors and windows. It includes a support component with a transverse load end and a longitudinal load end; a first covering and pressing component with a first connection end and a first covering and pressing end; a second covering and pressing component with a second connection end and a second covering and pressing end; a sealing film; a gas transmission port, which is arranged on the sealing film; the first connection end is connected to the transverse load end and the longitudinal load end; the second connection end is connected to the first covering and pressing component; the first covering and pressing end presses the edge of the sealing film to the inner horizontal wall and vertical wall of the door frame or window frame; the second covering and pressing end presses the edge of the sealing film to the inner corner wall of the door frame or window frame; the support component is located inside the space M enclosed by the door frame or window frame. Through the design of the built-in support component and the two covering and pressing components, any damage to the wall is avoided, and the integrity of the door and window system during the detection process is achieved.

Description

A non-destructive airtightness detection device for doors and windows

Technical Field

The invention belongs to the technical field of door and window air tightness detection, relates to a technology for realizing non-destructive air tightness detection of door and window systems, and specifically relates to a door and window non-destructive air tightness detection device.

Background technique

In the construction of civil air defense projects, the air tightness of protective doors and windows is related to the life safety of personnel when war comes, and protective doors and windows have high requirements for air tightness. In the residential construction industry, the air tightness of doors and windows is crucial to ensure energy efficiency and indoor environmental comfort. Poor air tightness may lead to energy waste, increase heating and cooling costs, and may affect indoor air quality. Therefore, accurately detecting and evaluating the air tightness of doors and windows has become an important task. More seriously, when the air tightness of doors and windows does not meet the relevant standards, there are serious safety hazards in the event of a fire.

At present, the air tightness test of doors and windows mainly relies on methods such as pressure difference test, smoke test and infrared thermal imaging. Although these methods can provide air tightness assessment to a certain extent, they have their own limitations. For example, the pressure difference test requires the sealing of the building and the use of large equipment, which is complicated and time-consuming; the smoke test may have a temporary impact on the indoor air quality; and infrared thermal imaging requires expensive equipment and is affected by external temperature changes.

These methods also usually involve a certain degree of intrusion or destruction of the building structure, such as drilling holes to install test equipment. In addition, existing detection methods often cannot achieve fast, portable and non-destructive detection, which limits their application in certain scenarios, especially in environments that require frequent or rapid on-site detection.

Summary of the invention

In order to solve the above-mentioned problems in the prior art, the present invention provides a non-destructive airtightness detection device for doors and windows.

In order to achieve the above object, the technical solution adopted by the present invention is:

Provided is a non-destructive airtightness detection device for doors and windows, comprising:

a support assembly having a transverse load-bearing end and a longitudinal load-bearing end;

A first pressing assembly having a first connecting end and a first pressing end;

A second pressing assembly having a second connecting end and a second pressing end;

Sealing membrane;

A gas delivery port, provided on the sealing film, for connecting to a gas delivery system;

Wherein, the first connection end is connected to the transverse load end and the longitudinal load end;

Wherein, the second connecting end is connected to the first covering and pressing component;

Wherein, the first pressing end presses the edge of the sealing film to the inner horizontal wall and vertical wall of the door frame or window frame;

Wherein, the second pressing end presses the edge of the sealing film to the inner corner wall of the door frame or window frame;

Furthermore, the supporting assembly is located inside a space M formed by the door frame or the window frame.

Preferably, the first pressing assembly has a stroke L1;

The second pressing component has a stroke L2;

Moreover, the stroke L1 and the stroke L2 are adjustable;

Among them, L2>L1.

Preferably, the stroke L1 includes a sub-stroke L11 and a sub-stroke L12;

Wherein, the adjustment accuracy of the sub-stroke L11 is n11, and the adjustment accuracy of the sub-stroke L12 is n12;

And, n11>n12;

The stroke L2 includes a sub-stroke L21 and a sub-stroke L22;

Wherein, the adjustment accuracy of the sub-stroke L21 is n21, and the adjustment accuracy of the sub-stroke L22 is n22;

And, n21>n22;

Wherein, the sub-stroke L11 and the sub-stroke L12 are in opposite directions;

The sub-stroke L21 and the sub-stroke L22 are in opposite directions.

Preferably, the axis of the second connecting end and the axis of the first pressing assembly connected thereto form an angle a1;

The axis of the second pressing end forms an angle a2 with the horizontal wall or the vertical wall;

Furthermore, the angle a1 and the angle a2 are adjustable.

Preferably, the axis of the first connecting end and the end surface of the lateral load end or the longitudinal load end connected thereto form an angle b1;

The axis of the first pressing end forms an angle b2 with the horizontal wall or the vertical wall;

Furthermore, the angle b1 and the angle b2 are adjustable.

Preferably, the second pressing assembly has a second driving member;

Wherein, the second driving member is connected to the second pressing end;

Wherein, the second driving member rotates in the first direction to have a driving state;

And, the second driving member rotates in the second direction to have an unlocked state;

Furthermore, the driving state is configured to drive the second pressing end to complete the adjustment of the stroke L2;

The unlocking state is configured to release the driving state of the second pressing end;

The first direction and the second direction are circumferential directions of the second covering and pressing component, and the directions are opposite to each other.

Preferably, the second overlay component has a conversion member;

Wherein, the conversion member is configured to switch the direction of the driving state to a second direction;

And, the direction of the unlocked state is switched to a first direction.

Preferably, the first pressing assembly has a first driving member;

The first driving member is connected to the first connecting end and the first pressing end;

Wherein, the first driving member is configured to rotate along the third direction to increase the value of the stroke L1;

Wherein, the first driving member is configured to rotate along a fourth direction to reduce the value of the stroke L1;

Furthermore, the third direction and the fourth direction are circumferential directions of the first covering and pressing component, and are in opposite directions to each other.

Preferably, it also includes:

Seal one and seal two;

Wherein, the sealing member 1 and the sealing member 2 are elastic;

Wherein, the sealing member 1 is pressed between the edge of the sealing film and the wall surface;

The second sealing member is pressed between the edge of the sealing film and each pressing end.

Preferably, the gas delivery system comprises:

Air intake device and detection device;

Furthermore, the air intake device and the detection device are in communication with the air delivery port;

Wherein, the air intake device is configured to deliver gas to the detection space enclosed by the sealing film and the door body or window body;

Wherein, the detection device is configured to detect the gas pressure in the detection space.

The present invention provides a non-destructive airtightness detection device for doors and windows, and the beneficial effects of the present invention are embodied in:

One of the most significant benefits of the present invention is its non-destructive installation feature. Traditional air tightness detection methods often require the installation of fixing devices, such as screws, on the wall, and repair work is required after the detection is completed, which not only increases additional maintenance costs, but may also affect the aesthetics and structural integrity of the building. In contrast, this embodiment avoids any damage to the wall through the design of built-in support components and two covering components, and achieves the maintenance of integrity and aesthetics during the detection process.

In urban environments and modern buildings, space is often limited, and traditional large-scale detection equipment is difficult to adapt to such environments. The present invention has a compact design, and all components can be configured in the internal space M of the door and window frame, which greatly facilitates installation and operation in space-constrained environments without occupying additional outdoor or indoor space.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a perspective view of a nondestructive airtightness detection device for doors and windows proposed by the present invention (the first connecting end is in the form of a first hinged member);

FIG2 is a schematic diagram showing the connection between the support assembly and the first pressing assembly in the non-destructive airtightness detection device for doors and windows proposed by the present invention;

FIG3 is a schematic diagram of the structure of the first pressing component in the non-destructive airtightness detection device for doors and windows proposed by the present invention (the first driving member is two adjusting nuts);

FIG4 is a schematic structural diagram of a second pressing component in the non-destructive airtightness detection device for doors and windows proposed by the present invention;

FIG5 is a second perspective view of the non-destructive airtightness detection device for doors and windows proposed by the present invention (the first connection end is in a fixed connection form);

FIG6 is a partial enlarged schematic diagram of the structure shown in FIG5 at position A;

7 is a perspective view of the second pressing assembly assembly conversion member in the non-destructive airtightness detection device for doors and windows proposed by the present invention;

FIG8 is a front view of the second pressing assembly assembly conversion member in the non-destructive airtightness detection device for doors and windows proposed by the present invention;

9 is a bottom view of the assembly conversion member of the second pressing component in the non-destructive airtightness detection device for doors and windows proposed by the present invention.

Description of reference numerals:

1. Support assembly; 101. lateral load end; 102. longitudinal load end; 2. first covering pressure assembly; 201. first connection end; 202. first covering pressure end; 203. first sleeve; 204. first covering pressure rod; 205. first covering pressure plate; 3. second covering pressure assembly; 301. second connection end; 302. second covering pressure end; 303. second sleeve; 304. second covering pressure rod; 305. second covering pressure plate; 306. second driving member; 307. conversion member; 4. sealing membrane; 5. gas delivery port; 6. air intake device; 7. detection device.

Detailed ways

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

Please refer to Figures 1 to 9, the specific embodiments provided by the present invention are as follows:

As shown in FIG1 , the first embodiment of the present invention provides a non-destructive airtightness detection device for doors and windows, comprising:

A support assembly 1 having a transverse load-bearing end 101 and a longitudinal load-bearing end 102;

A first pressing component 2 having a first connecting end 201 and a first pressing end 202;

A second pressing component 3 having a second connecting end 301 and a second pressing end 302;

Sealing film 4;

A gas delivery port 5, provided on the sealing film 4, for connecting to a gas delivery system;

Wherein, the first connection end 201 is connected to the transverse load end 101 and the longitudinal load end 102;

Wherein, the second connection end 301 is connected to the first covering component 2;

The first pressing end 202 presses the edge of the sealing film 4 to the inner horizontal wall and vertical wall of the door frame or window frame;

The second pressing end 302 presses the edge of the sealing film 4 to the inner corner wall of the door frame or window frame;

Furthermore, the support assembly 1 is located inside a space M formed by the door frame or the window frame.

In this embodiment, when performing air tightness testing on doors and windows, especially when using a differential pressure testing method, in order to ensure that the sealing film 4 is pressed tightly against the wall of the door frame or window frame, a pressing frame (a frame for pressing the sealing film 4 against the wall) is usually assembled to the wall with screws. This destructive method requires the wall to be repaired after the test is completed.

Moreover, the compression frame of the airtightness detection device is usually located outside the door frame or window frame (not inside the space M defined in this embodiment). When the space is very cramped, it is difficult to assemble a larger compression frame in the correct position, thereby failing to implement airtightness detection of doors and windows.

Based on this, the present embodiment hopes to provide a non-destructive airtightness detection device that can be used without damaging walls or doors and windows under space-constrained conditions.

Thus, the support assembly 1 can be disposed inside the space M. That is, the support assembly 1 does not need to occupy any space other than the door frame or the window frame, thereby achieving support for airtightness detection of the door and window system in a small space.

On the basis of the above, in consideration of non-destructive installation, a first pressing component 2 is provided on the transverse load end 101 surface and the longitudinal load end 102 surface of the support component 1. The transverse load end 101 surface refers to the end surface of the support component 1 along its width direction, and the longitudinal load end 102 surface refers to the end surface of the support component 1 along its length direction. The first pressing end 202 of the first pressing component 2 is used to press the sealing film 4 onto the wall surface of the door frame or window frame which is horizontal or vertical. Specifically, the first pressing end 202 applies a force toward the wall surface to the edge of the sealing film 4 so that the sealing film 4 is tightly attached to the wall surface.

Furthermore, considering that there is a corner wall surface in a door frame or a window frame, that is, a wall surface at 90 degrees, if the edge of the sealing film 4 is not tightly pressed at this position, it is very easy to cause gas to escape. Therefore, a second pressing component 3 is added, and the second pressing component 3 is used to apply a force to the edge of the sealing film 4 at this position so that it fits tightly on the corner wall surface.

As shown in Figures 1 and 2, in a specific embodiment, the support assembly 1 includes a plurality of horizontal rods arranged horizontally and a plurality of vertical rods arranged vertically. The horizontal rods and the vertical rods form a rectangular frame structure.

As shown in FIG3 , in a specific embodiment, the first covering pressure assembly 2 includes a first hinge, i.e., a first connecting end 201, and the first hinges of the plurality of first covering pressure assemblies 2 are respectively hinged to the transverse load end 101 and the longitudinal load end 102. The first covering pressure assembly 2 also includes a first sleeve 203 and a first covering pressure rod 204, the first sleeve 203 and the first covering pressure rod 204 are threadedly connected, and a first covering pressure plate 205 of a straight plate structure, i.e., the first covering pressure end 202, is connected to the end of the first covering pressure rod 204. By rotating the first sleeve 203, the first covering pressure rod 204 is driven to rotate out or rotate back, so as to push or pull back the first covering pressure plate 205 to press or not press the edge of the sealing film 4 on the wall.

As shown in FIG4 , in a specific embodiment, the second covering component 3 has the same structure as the first covering component 2, except that the second covering plate 305 is in a right-angle structure to fit the shape of the corner wall. In addition, the second connection end 301 is connected to the first covering component 2. The reason is that in this form, by adjusting the installation angle of the second connection end 301 on the first covering component 2, the second covering component 3, i.e., the second covering plate 305 in a right-angle structure, can apply a relatively greater covering pressure to the horizontal wall or the vertical wall, so that the edge of the sealing film 4 has a relatively better sealing performance on one of the horizontal walls or the vertical walls.

As shown in Figures 1 to 4, in a specific embodiment, the method of performing non-destructive airtightness testing of doors and windows is to install the support assembly 1 and the first covering assembly 2 and the second covering assembly 3. The device is placed in the door frame or window frame to be tested, and the first covering assembly 2 and the second covering assembly 3 are adjusted so that the edge of the sealing film 4 is pressed against the wall. The gas supply system is connected through the gas supply port 5, and the gas supply system includes an air intake device 6 and a detection device 7; and the air intake device 6 and the detection device 7 are connected to the gas supply port 5; wherein the air intake device 6 is configured to deliver gas to the detection space formed by the sealing film 4 and the door body or window body; wherein the detection device 7 is configured to detect the gas pressure in the detection space. The air intake device 6, such as an air pump, delivers gas to the detection space, and the detection device 7, such as an air pressure detection machine, detects the air pressure in the detection space. When the air pressure in the detection space reaches the set pressure, the air intake is stopped and the pressure is maintained for a period of time, and the gas pressure change in the detection space is monitored within this time range. If the gas pressure drop rate is significantly lower than the set value, it means that the air tightness of the door or window to be tested is poor, otherwise it is good.

In summary, the non-destructive airtightness detection device for doors and windows provided in this embodiment at least has the following features:

One of the most significant beneficial effects of the present invention is its non-destructive installation feature. Traditional air tightness detection methods often require the installation of fixing devices, such as screws, on the wall, and repair work is required after the detection is completed, which not only increases additional maintenance costs, but may also affect the aesthetics and structural integrity of the building. In contrast, this embodiment avoids any damage to the wall through the design of the built-in support component 1 and the two covering components, and achieves the maintenance of integrity and aesthetics during the detection process.

In urban environments and modern buildings, space is often limited, and traditional large-scale detection equipment is difficult to adapt to such environments. The present invention has a compact design, and all components can be configured in the internal space M of the door and window frame, which greatly facilitates installation and operation in space-constrained environments without occupying additional outdoor or indoor space.

The design of the device ensures that the sealing film 4 can be more closely and evenly attached to all edges of the door frame or window frame, including the inner corner wall surface which is difficult to operate. By optimizing the sealing effect, the change of gas pressure can be more accurately measured and analyzed, thereby improving the efficiency and accuracy of detection, effectively preventing gas leakage, and ensuring the reliability of the detection results.

Since no changes are required to the inspection environment, users can save the cost of repair and redecoration. In addition, the design of the device allows for quick installation and disassembly, reducing labor and time costs, especially for commercial buildings and residences that require frequent inspections, which can significantly reduce maintenance costs in the long run.

This non-destructive airtightness detection device is not only suitable for new buildings, but also for the maintenance of historical buildings, especially when changes to the building's appearance or structure are not allowed, providing an efficient and economical solution for building protection.

The second embodiment of the present invention provides a non-destructive airtightness detection device for doors and windows, and based on the first embodiment, the first covering and pressing component 2 has a stroke L1;

The second pressing component 3 has a stroke L2;

Moreover, the stroke L1 and the stroke L2 are adjustable;

Among them, L2>L1.

In this embodiment, the stroke adjustment function of the first pressing component 2 and the second pressing component 3 allows the user to accurately adjust the pressing position and force of each pressing end according to the specific size and shape of the door and window frame. This stroke adjustability is particularly suitable for dealing with a variety of doors and windows of different standard or non-standard sizes, making the airtightness detection device more widely applicable and flexible.

When testing the air tightness of doors and windows, especially in diverse building environments, L1 and L2 can be adjusted to optimize the pressure and position to ensure that the sealing film 4 can fit more perfectly on the joints of doors and windows of different widths and angles. This design significantly improves the accuracy and reliability of the test, while reducing the problem of damage to the sealing film 4 or insufficient air tightness caused by improper pressing.

In summary, this embodiment not only inherits all the advantages of the first embodiment, such as non-destructive installation and suitability for space-constrained environments, but also increases the adaptability of the equipment by introducing adjustable strokes L1 and L2, enabling it to better serve various complex and changeable application scenarios, further enhancing the practicability and market competitiveness of the product.

In a specific embodiment, the stroke L1 of the first pressure assembly 2 and the stroke L2 of the second pressure assembly 3 are realized by respective sleeves. By rotating the sleeves, the screwing in or screwing out amount of the corresponding pressure rods is adjusted, thereby realizing the adjustment of the strokes L1 and L2.

The third embodiment of the present invention provides a non-destructive airtightness detection device for doors and windows, and based on the previous embodiment, the stroke L1 includes a sub-stroke L11 and a sub-stroke L12;

Wherein, the adjustment accuracy of the sub-stroke L11 is n11, and the adjustment accuracy of the sub-stroke L12 is n12;

And, n11>n12;

The stroke L2 includes a sub-stroke L21 and a sub-stroke L22;

Wherein, the adjustment accuracy of the sub-stroke L21 is n21, and the adjustment accuracy of the sub-stroke L22 is n22;

And, n21>n22;

Wherein, the sub-stroke L11 and the sub-stroke L12 are in opposite directions;

The sub-stroke L21 and the sub-stroke L22 are in opposite directions.

In this embodiment, it is further found that there is a one-way regulation mechanism in the prior art, but this mechanism has the following problems:

One-way adjustment with fixed precision cannot adapt to the diversity and complexity of door and window structures. When dealing with doors and windows of different thicknesses or irregular shapes, a single adjustment step may be too large or too small to achieve the ideal sealing effect. Moreover, when the overlapping position needs to be adjusted very precisely to achieve a perfect seal, the fixed adjustment amount may make it impossible to make detailed adjustments, and multiple iterative adjustments are required to approach the ideal state, which is time-consuming and inefficient.

Therefore, in the actual operation of door and window airtightness detection, the limitations of one-way fixed precision adjustment may lead to the following technical problems:

For doors and windows with different thicknesses or multi-layer frames, a fixed adjustment amount may not achieve uniform pressure at all contact points, resulting in incomplete sealing and affecting the accuracy and reliability of detection. When trying to achieve the ideal sealing state, the operator may need to make repeated adjustments many times, resulting in low overall work efficiency.

Based on this, the bidirectional adjustment mechanism provided in this embodiment, as well as the forms with different adjustment precisions, can combine coarse adjustment (i.e., the adjustment precision corresponding to sub-stroke L12 and sub-stroke L22) and fine adjustment (i.e., the adjustment precision corresponding to sub-stroke L11 and sub-stroke L21) to allow the operator to quickly approach the ideal pressing position, and then make fine adjustments to achieve the best sealing effect. This not only improves the accuracy of the adjustment, but also optimizes the efficiency of the adjustment process. Moreover, different adjustment precisions can better adapt to different types of door and window structures, especially for complex or special-shaped door and window frames, to ensure that good sealing can be achieved at all necessary contact points. In addition, by reducing the number of adjustments required and improving the accuracy of the adjustments, the overall quality and speed of the detection can be significantly improved, and the complexity of the operation and the potential error rate can be reduced.

As shown in Fig. 3, in a specific embodiment, the first pressure rod 204 of the first pressure assembly 2 is divided into two sections, and is respectively connected to the two ends of the first sleeve 203 through two adjusting nuts. The pitch of one section is smaller than the pitch of the other section, so that the adjustment accuracy n11 of the sub-stroke L11 is greater than the adjustment accuracy n12 of the sub-stroke L12.

As shown in FIG4 , in a specific embodiment, the second pressure rod 304 of the second pressure assembly 3 is divided into two ends, and is respectively connected to the two ends of the second sleeve 303 through two adjusting nuts. The pitch of one end is smaller than the pitch of the other end, so that the adjustment accuracy n21 of the sub-stroke L21 is greater than the adjustment accuracy n22 of the sub-stroke L22.

The larger pitch design allows the operator to quickly cover a larger adjustment range, which is very useful when initially setting up the equipment or accommodating large size changes. The smaller pitch design allows the operator to make minor adjustments, which is critical to ensuring a good seal, especially when dealing with small or sensitive door and window joints.

As shown in FIG. 1 and FIG. 4 , the fourth embodiment of the present invention provides a non-destructive airtightness detection device for doors and windows, and based on the previous embodiment, the axis of the second connecting end 301 and the axis of the first covering component 2 connected thereto have an angle a1;

The axis of the second pressing end 302 forms an angle a2 with the horizontal wall or the vertical wall;

Furthermore, the angle a1 and the angle a2 are adjustable;

And, the axis of the first connecting end 201 and the end surface of the lateral load end 101 or the longitudinal load end 102 connected thereto form an angle b1;

The axis of the first pressing end 202 forms an angle b2 with the horizontal wall or the vertical wall;

Furthermore, the angle b1 and the angle b2 are adjustable.

In this embodiment, by adjusting the angles a1, a2, b1 and b2, the detection device can adapt to various installation conditions and specific requirements of door and window frames, especially in installation scenarios with complex angles or unconventional installations. The adjustable angle enables the covering and pressing components to better contact the door and window frames and the wall surface, and can achieve a more uniform and tight seal on both flat and angled surfaces, thereby improving the accuracy of air tightness detection. The operator can adjust the angle according to the specific installation environment and detection requirements to improve the flexibility of the device and the detection efficiency.

In a specific embodiment, the second connection end 301 is a second hinged member, which is hinged to the first covering pressure rod 204 of the first covering pressure assembly 2, and the second covering pressure end 302 is formed by a second covering pressure plate 305 hinged to the second covering pressure rod 304. The first connection end 201 is a first hinged member, which is hinged to the transverse load end 101 and the longitudinal load end 102, and the first covering pressure end 202 is formed by a first covering pressure plate 205 hinged to the first covering pressure rod 204.

As shown in FIG. 7 to FIG. 9 , the fifth embodiment of the present invention provides a non-destructive airtightness detection device for doors and windows, and based on the previous embodiment, the second covering and pressing assembly 3 has a second driving member 306;

Wherein, the second driving member 306 is connected to the second pressing end 302;

Wherein, the second driving member 306 rotates in the first direction to have a driving state;

And, the second driving member 306 rotates in the second direction to have an unlocked state;

Furthermore, the driving state is configured to drive the second pressing end 302 to complete the adjustment of the stroke L2;

The unlocking state is configured to release the driving state of the second pressing end 302;

The first direction and the second direction are circumferential directions of the second covering and pressing component 3 , and the directions are opposite to each other.

In this embodiment, it is further found that since the second covering component 3 is located close to the edge of the window frame or door frame, when the second sleeve 303 is rotated, the wrench will interfere with the edge of the door frame or window frame, so that the operator can only remove the wrench each time, then reinstall it and rotate the second sleeve 303 slightly.

Based on this, a second driving member 306 is added. When the second sleeve 303 needs to be rotated, the second driving member 306 is driven to rotate the second sleeve 303 (i.e., the driving state) along the first direction, thereby driving the second pressure rod 304 to rotate in or out. When the wrench interferes with the door frame or window frame, the operator does not need to remove the wrench, but only needs to rotate it along the second direction. At this time, the second driving member 306 will not drive the second sleeve 303 to rotate (i.e., the unlocked state), thereby allowing the wrench to reach a position that does not interfere with the door frame or window frame and continue to rotate along the first direction. Therefore, by adding the second driving member 306, the space limitation problem often encountered in the operation of the non-destructive airtightness detection device for doors and windows is solved, especially the difficulty in adjusting the equipment in a narrow space. This improvement significantly improves the user-friendliness and operating efficiency of the equipment.

In a specific embodiment, the second driving member 306 and the second sleeve 303 form a ratchet structure. In addition, the second driving member 306 is a polygonal nut adapted to a wrench.

As shown in FIG. 7 to FIG. 9 , the sixth embodiment of the present invention provides a non-destructive airtightness detection device for doors and windows, and based on the previous embodiment, the second covering and pressing component 3 has a conversion member 307;

Wherein, the conversion member 307 is configured to switch the direction of the driving state to a second direction;

And, the direction of the unlocked state is switched to a first direction.

In this embodiment, it is further found that the stroke L1 of the first covering and pressing assembly 2 and the stroke L2 of the second covering and pressing assembly 3 need to be increased as well as reduced (to facilitate removal of the device).

Based on this, it is necessary to ensure that when the stroke is increased, it can be achieved through the driving state in the first direction and the unlocking state in the second direction. When it is necessary to ensure that the stroke is reduced, it can be achieved through the driving state in the second direction and the unlocking state in the first direction. The conversion member 307 added in this embodiment is used to switch the direction of the driving state and the unlocking state to achieve the function of increasing or reducing the stroke.

As shown in FIGS. 7 to 9 , in a specific embodiment, the second driving member 306 has two pawls (the circumferential wall of the second sleeve 303 is provided with a meshing ratchet), and the two pawls are arranged opposite to each other, and the two pawls are abutted against the ratchet through a spring. The conversion member 307 is a conversion handle connected to the second driving member 306, and by turning the conversion handle, one of the pawls is meshed with the ratchet to form a driving state in the first direction, or vice versa to form a driving state in the second direction.

The seventh embodiment of the present invention provides a non-destructive airtightness detection device for doors and windows, and based on the previous embodiment, the first covering and pressing component 2 has a first driving member;

The first driving member is connected to the first connecting end 201 and the first pressing end 202;

Wherein, the first driving member is configured to rotate along the third direction to increase the value of the stroke L1;

Wherein, the first driving member is configured to rotate along a fourth direction to reduce the value of the stroke L1;

Furthermore, the third direction and the fourth direction are circumferential directions of the first covering and pressing component 2 , and are in opposite directions to each other.

In this embodiment, the first driving member is the first sleeve 203. The first sleeve 203 has two sections of threads with opposite rotation directions inside, and is threadedly connected with the first pressure rod 204 divided into two sections. In this way, the first sleeve 203 is rotated in the third direction, so that the two sections of the first pressure rod 204 are screwed out to increase the stroke L1. Or the first sleeve 203 is rotated in the fourth direction, so that the two sections of the first pressure rod 204 are screwed in to reduce the stroke L1.

In another specific embodiment, the first driving member is the two adjusting nuts mentioned above. By rotating the adjusting nuts in the third direction, the two sections of the first pressure rods 204 are screwed out to increase the stroke L1. Or by rotating the adjusting nuts in the fourth direction, the two sections of the first pressure rods 204 are screwed in to reduce the stroke L1.

The eighth embodiment of the present invention provides a non-destructive airtightness detection device for doors and windows, and based on the previous embodiment, further includes:

Seal one and seal two;

Wherein, the sealing member 1 and the sealing member 2 are elastic;

Wherein, the sealing member 1 is pressed between the edge of the sealing film 4 and the wall surface;

The second sealing member is pressed between the edge of the sealing film 4 and each pressing end.

In this embodiment, the sealing member 1 and the sealing member 2 are rubber plates or rubber pads.

In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", and "assemble" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

In the description of the embodiments of the present invention, specific features, structures, materials or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

In the description of the embodiments of the present invention, the term "and/or" herein is merely a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and/or B may represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character "/" herein generally indicates that the associated objects before and after are in an "or" relationship.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims (10)

1. A nondestructive airtight detection device for doors and windows, comprising:

a support assembly having a lateral load end and a longitudinal load end;

A first lamination assembly having a first connection end and a first lamination end;

A second lamination assembly having a second connection end and a second lamination end;

A sealing film;

the gas transmission port is arranged on the sealing film and is used for connecting a gas transmission system;

Wherein the first connection end is connected to the lateral load end and the longitudinal load end;

wherein the second connecting end is connected to the first laminating component;

The first laminating end presses the edge of the sealing film to the inner side horizontal wall surface and the vertical wall surface of the door frame or the window frame;

the second pressing end presses the edge of the sealing film to the inner corner wall surface of the door frame or the window frame;

and, the supporting component is positioned in the space M formed by the enclosing of the door frame or the window frame.

2. The nondestructive airtight detection apparatus for door and window according to claim 1, wherein,

The first covering component has a stroke L1;

the second lamination component has a stroke L2;

The stroke L1 and the stroke L2 are adjustable;

Wherein L2> L1.

3. The nondestructive airtight detection apparatus for door and window according to claim 2, wherein,

The stroke L1 comprises a sub-stroke L11 and a sub-stroke L12;

the adjusting precision of the sub-stroke L11 is n11, and the adjusting precision of the sub-stroke L12 is n12;

and n11> n12;

the stroke L2 comprises a sub-stroke L21 and a sub-stroke L22;

The adjustment precision of the sub-stroke L21 is n21, and the adjustment precision of the sub-stroke L22 is n22;

And n21> n22;

Wherein the directions of the sub-stroke L11 and the sub-stroke L12 are opposite;

wherein, the direction of the sub-stroke L21 is opposite to that of the sub-stroke L22.

4. The nondestructive airtight detection apparatus for door and window according to claim 3, wherein,

The axis of the second connecting end is provided with an included angle a1 with the axis of the first covering and pressing assembly connected with the axis of the second connecting end;

The axis of the second pressing end forms an included angle a2 with the horizontal wall surface or the vertical wall surface;

and the included angle a1 and the included angle a2 are adjustable.

5. The nondestructive airtight detection apparatus for door and window according to claim 3, wherein,

The axis of the first connecting end is provided with an included angle b1 with the end face of the transverse load end or the longitudinal load end connected with the axis of the first connecting end;

An included angle b2 is formed between the axis of the first pressing end and the horizontal wall surface or the vertical wall surface;

And the included angle b1 and the included angle b2 are adjustable.

6. The nondestructive airtight detection apparatus for door and window according to claim 2, wherein,

The second covering component is provided with a second driving piece;

The second driving piece is connected with the second covering end;

wherein the second driving piece rotates along the first direction to have a driving state;

and, the second driving member rotates in a second direction to have an unlocked state;

the driving state is configured to drive the second pressing end to finish the adjustment of the stroke L2;

The unlocking state is configured to release the driving state of the second pressing end;

the first direction and the second direction are the circumferential direction of the second covering component, and the directions are opposite to each other.

7. The nondestructive airtight detection apparatus for door and window according to claim 6, wherein,

The second lamination assembly is provided with a conversion piece;

Wherein the switching member is configured to switch the direction of the driving state to a second direction;

And switching the direction of the unlocking state to a first direction.

8. The nondestructive airtight detection apparatus for door and window according to claim 2, wherein,

The first covering component is provided with a first driving piece;

the first driving piece is connected with the first connecting end and the first covering end;

Wherein the first driver is configured to rotate in a third direction to increase the value of the travel L1;

wherein the first driver is configured to rotate in a fourth direction to decrease the magnitude of the stroke L1;

And the third direction and the fourth direction are the circumferential direction of the first covering component, and the directions are opposite to each other.

9. The door and window nondestructive airtight detection apparatus of any one of claims 1 to 8, wherein,

Further comprises:

A first sealing element and a second sealing element;

wherein the first sealing element and the second sealing element are elastic;

wherein, the first sealing element is pressed between the edge of the sealing film and the wall surface;

wherein, second seal member is pressed to the edge of sealing film and each cover between the pressing end.

10. The door and window nondestructive airtight detection apparatus of any one of claims 1 to 8, wherein,

The gas delivery system includes:

an air inlet device and a detection device;

the air inlet device and the detection device are communicated with the air transmission port;

the gas inlet device is configured to convey gas into a detection space formed by enclosing the sealing film and the door body or the window body;

wherein the detection device is configured to detect a gas pressure in the detection space.