Building door and window air tightness performance on-site detector

Abstract

The utility model belongs to the technical field of detection discloses a kind of building door and window air-tightness field detector, including air-tight shed and sealing plate, the sealing plate is installed in air-tight shed edge, the sealing plate is located the outside of air-tight shed and is provided with outside sealing adsorption pad, the inside of sealing plate is provided with inside sealing adsorption pad, vacuum cavity is arranged between outside sealing adsorption pad and inside sealing adsorption pad, outside sealing adsorption pad and inside sealing adsorption pad are provided with several adsorption pad units, separation groove is opened between adsorption pad unit, the both sides of adsorption pad unit are provided with magnetic suction block, the technical problem that the current building door and window air-tightness detector is difficult to make sealing pad and door and window surface form tight and stable adhering state, gas leakage problem is prone to occur due to not tight enough in detection process.

Description

Technical Field

[0001] This utility model belongs to the field of testing technology, specifically a field testing instrument for the air tightness performance of building doors and windows. Background Technology

[0002] In the quality acceptance process of building doors and windows during production and installation, air tightness performance testing is a key item for evaluating their energy-saving effect and performance. It is necessary to use a special sealing structure to connect the doors and windows with the testing equipment to form a closed space for gas pressure testing, so as to ensure that the test data can accurately reflect the actual air tightness of the doors and windows.

[0003] Existing sealing structures for airtightness testing of doors and windows lack effective adsorption and fixation mechanisms, making it difficult to achieve a tight and stable fit between the sealing gasket and the door / window surface. This can easily lead to gas leakage during testing due to incomplete sealing, thus affecting the accuracy of the airtightness test results. Furthermore, they cannot flexibly adapt to the contours of building doors and windows of different shapes and sizes, resulting in poor adaptability and insufficient fit when dealing with irregularly shaped or non-standard sized doors and windows, leading to sealing gaps. This also reduces testing efficiency, presents problems such as inconvenience in carrying and insufficient flexibility in on-site deployment, and fails to meet the airtightness performance testing needs of building doors and windows in different scenarios. Summary of the Invention

[0004] In order to overcome the shortcomings of existing technical solutions, this utility model provides a field tester for the air tightness performance of building doors and windows, which can effectively solve the technical problem that existing air tightness testers for building doors and windows are unable to form a tight and stable fit between the sealing gasket and the surface of the door and window, and that gas leakage is likely to occur during the test due to inadequate sealing.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a field tester for the airtightness performance of building doors and windows, including an airtight canopy and a sealing plate. The sealing plate is installed on the edge of the airtight canopy. An outer sealing adsorption pad is provided on the outer side of the sealing plate of the airtight canopy. An inner sealing adsorption pad is provided on the inner side of the sealing plate. A vacuum cavity is provided between the outer sealing adsorption pad and the inner sealing adsorption pad. A plurality of adsorption pad units are provided between the outer sealing adsorption pad and the inner sealing adsorption pad. A partition groove is opened between the adsorption pad units. Magnetic blocks are provided on both sides of the adsorption pad units. The sealing adsorption blocks are wrapped on the outside of the magnetic blocks. Adsorption holes are opened in the vacuum cavity. An installation head is provided on the side of the airtight canopy away from the sealing plate. An airtight installation head and a tester installation head are respectively provided on one side of the installation head. The adsorption holes are connected to the airtight installation head.

[0006] Preferably, the mounting head is connected to a support rod via a rotating shaft, and the other end of the support rod is connected to the four corners of the sealing plate. A sealing cloth is provided between the sealing plate and the support rod in the airtight enclosure.

[0007] The angle between the support rod and the mounting head can be flexibly adjusted, allowing for adaptive adjustment of the support angle of the airtight canopy according to the actual installation position and spatial layout of doors and windows at the testing site. This ensures that the sealing cloth can be fully unfolded and conform to the surrounding environment of the testing area. Connecting the support rod to the four corners of the sealing plate provides stable four-point support for the sealing plate, preventing it from tilting or shifting due to uneven force during testing, thus ensuring the sealing effect and facilitating storage. The sealing cloth also prevents external air from entering the airtight canopy, avoiding interference from external airflow on the airtightness test results during the testing process.

[0008] Preferably, the adsorption pad unit is made of silicone material, and the edge of the adsorption pad unit has a sealing lip.

[0009] Silicone material has good elasticity and flexibility, and can deform appropriately when in contact with door and window frames or walls, closely fitting the irregular texture of the contact surface and improving the tightness of the seal and adsorption. The sealing lip design on the edge of the adsorption pad unit can further enhance its fit with the contact surface. On the basis of the main body of the adsorption pad unit, the secondary sealing effect of the sealing lip further reduces the air leakage channels and improves the overall sealing performance.

[0010] Preferably, the depth of the dividing groove extends through the adsorption pad unit, and the dividing groove between two adjacent adsorption pad units is filled with an elastic sealing strip, the height of which is flush with the height of the adsorption pad unit.

[0011] Filling the separator with an elastic sealing strip fills the gap between adjacent adsorption pad units, preventing air leakage from the separator. The height of the elastic sealing strip is flush with the height of the adsorption pad unit, ensuring that the sealing strip and the adsorption pad unit together form a flat sealing contact surface, avoiding gaps caused by height differences. At the same time, it ensures that the sealing strip and the adsorption pad unit can synchronously adhere to the detection contact surface during adsorption, ensuring uniform sealing.

[0012] Preferably, the magnetic block is a permanent magnet block, the shape of the magnetic block is adapted to the side shape of the adsorption pad unit, the material of the sealing adsorption block is the same as that of the adsorption pad unit, and the sealing adsorption block and the adsorption pad unit are integrally formed.

[0013] The permanent magnet block can stably adhere to the metal parts of door and window frames or walls, providing auxiliary fixing force for the adsorption pad unit, enhancing the adhesion stability between the adsorption pad unit and the contact surface, and preventing the adsorption pad unit from shifting due to slight external vibrations or airflow impacts during the testing process; the shape of the magnetic block matches the side shape of the adsorption pad unit, ensuring that the magnetic block can fit tightly against the side of the adsorption pad unit, avoiding gaps between the two that would affect the sealing effect; the sealing adsorption block and the adsorption pad unit are made of the same material and are integrally molded, ensuring consistency in physical properties and sealing effect, while the integral molding structure eliminates the connection gap between the sealing adsorption block and the adsorption pad unit, further improving the sealing performance around the sealing adsorption block and preventing air leakage from the connection point.

[0014] Preferably, the adsorption pores are evenly distributed within the vacuum chamber, and a filter screen is provided at the end of the adsorption pores away from the airtight mounting head.

[0015] The evenly distributed adsorption holes within the vacuum chamber ensure that the negative pressure suction force in each area of ​​the vacuum chamber is uniformly transmitted to the adsorption pad unit. This guarantees that all parts of the adsorption pad unit are evenly stressed and tightly adhere to the detection contact surface, preventing air leakage due to uneven suction causing some areas to not adhere tightly. A filter screen is installed at the end of the adsorption hole away from the airtight mounting head, which can effectively filter dust, impurities, and other particulate matter in the air, preventing these substances from entering the adsorption hole or the subsequent connected air circuit system. This avoids air circuit blockage affecting the negative pressure generation efficiency, while also protecting the internal components of the detection equipment from wear and tear caused by impurities, extending the service life of the equipment.

[0016] Preferably, the support rod is a telescopic support rod, and the telescopic section of the support rod is provided with scale markings on its outer side, and the sealing cloth is fixed to the support rod.

[0017] The telescopic support rods are designed to be flexible in length, allowing the airtight shed to adapt to the testing area size and thus enhance its versatility. The scale markings on the outside of the telescopic section facilitate precise control of the support rods' extension length, ensuring multiple rods can be adjusted to the same length. This guarantees the overall flatness and stability of the airtight shed structure, preventing tilting or uneven stress on the sealing cloth due to inconsistent rod lengths. Fixing the sealing cloth to the support rods prevents displacement during testing due to airflow, ensuring the cloth effectively covers the gaps and maintains a sealed environment inside the airtight shed.

[0018] Compared with existing technologies, the advantages of this invention are as follows: By setting an outer sealing adsorption pad and an inner sealing adsorption pad on the outer and inner sides of the sealing plate respectively, and forming a vacuum cavity between them, combined with the connection design of the adsorption hole and the airtight mounting head, the vacuum adsorption effect can make the sealing pad and the door / window testing surface fit tightly together, effectively enhancing the sealing performance of the sealing structure, avoiding gas leakage during the testing process, and ensuring the accuracy of the airtightness test results. The setting of the adsorption pad unit combined with the design of the dividing groove allows the sealing adsorption structure to adapt to the contours of building doors and windows of different shapes and sizes, improving the adaptability and fit of the sealing structure. At the same time, the combination design of the magnetic block and the sealing adsorption block further strengthens the adsorption and fixing effect between the sealing adsorption pad and the door / window surface, reduces the sealing gap, and improves the sealing reliability. This allows the testing instrument to quickly complete the installation, sealing, and testing operations on-site, simplifying the testing process, improving testing efficiency, and making it easy to carry and deploy on-site. It is suitable for the airtightness testing needs of building doors and windows in different scenarios. Attached Figure Description

[0019] Figure 1 This is a three-dimensional view of the on-site testing instrument for the air tightness performance of building doors and windows according to this utility model;

[0020] Figure 2 This is a schematic diagram of one side of the airtight canopy and sealing plate of the on-site airtightness performance testing instrument for building doors and windows of this utility model;

[0021] Figure 3 This is a schematic diagram of the other side of the airtight canopy and sealing plate of the on-site airtightness performance testing instrument for building doors and windows of this utility model.

[0022] Figure 4 This is a schematic diagram of the sealing adsorption pad structure of the on-site testing instrument for the airtightness performance of building doors and windows according to this utility model.

[0023] The following are the labeling elements in the diagram: 100, airtight enclosure; 101, support rod; 102, mounting head; 103, airtight mounting head; 104, detector mounting head; 105, sealing cloth; 200, sealing plate; 201, outer sealing adsorption pad; 202, inner sealing adsorption pad; 203, vacuum chamber; 204, adsorption pad unit; 205, sealing adsorption block; 206, magnetic block; 207, adsorption hole; 208, partition groove; 300, detector; 301, connecting pipe. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figures 1-4 As shown, a field testing instrument for the airtightness performance of building doors and windows includes an airtight canopy 100, a sealing plate 200, and a testing instrument 300. An installation head 102 is provided on the side of the airtight canopy 100 away from the sealing plate 200. The testing instrument 300 is provided with a connecting pipe 301, and the testing instrument 300 is connected to the installation head 102 through the connecting pipe 301. The sealing plate 200 is installed at the edge of the airtight canopy 100. The instrument is characterized in that: an outer sealing adsorption pad 201 is provided on the outer side of the sealing plate 200 of the airtight canopy 100, and an inner sealing adsorption pad 202 is provided on the inner side of the sealing plate 200. A vacuum chamber 203 is provided between the outer sealing adsorption pad 201 and the inner sealing adsorption pad 202. Several adsorption pad units 204 are provided between the outer sealing adsorption pad 201 and the inner sealing adsorption pad 202. A partition groove 208 is provided between the adsorption pad units 204. Magnetic blocks 206 are provided on both sides of the adsorption pad unit 204. A sealing adsorption block 205 is wrapped around the outside of the magnetic blocks 206. An adsorption hole 207 is provided in the vacuum chamber 203. An airtight mounting head 103 and a detector mounting head 104 are respectively provided on one side of the mounting head 102. The adsorption hole 207 is connected to the airtight mounting head 103.

[0026] The mounting head 102 is connected to a support rod 101 via a pivot. The other end of the support rod 101 is connected to the four corners of the sealing plate 200. The airtight canopy 100 is located between the sealing plate 200 and the support rod 101 and is provided with a sealing cloth 105.

[0027] The angle between the support rod 101 and the mounting head 102 can be flexibly adjusted to adapt the support angle of the airtight canopy 100 according to the actual installation position and spatial layout of the doors and windows at the testing site, ensuring that the sealing cloth 105 can be fully unfolded and fit the surrounding environment of the testing area. Connecting the support rod 101 to the four corners of the sealing plate 200 provides stable four-point support for the sealing plate 200, preventing the sealing plate 200 from tilting or shifting due to uneven force during the testing process, ensuring the sealing effect, and facilitating storage. The setting of the sealing cloth 105 can block the entry of external air into the airtight canopy 100, avoiding interference from external airflow on the airtightness test results during the testing process.

[0028] The adsorption pad unit 204 is made of silicone and has a sealing lip on its edge.

[0029] Silicone material has good elasticity and flexibility, and can deform appropriately when in contact with door and window frames or walls, closely fitting the irregular texture of the contact surface and improving the tightness of the seal and adsorption. The sealing lip design on the edge of the adsorption pad unit 204 can further enhance its fit with the contact surface. On the basis of the main body of the adsorption pad unit 204, the secondary sealing effect of the sealing lip further reduces the air leakage channel and improves the overall sealing performance.

[0030] The depth of the partition groove 208 extends through the adsorption pad unit 204. The partition groove 208 between two adjacent adsorption pad units 204 is filled with an elastic sealing strip. The height of the elastic sealing strip is flush with the height of the adsorption pad unit 204.

[0031] The elastic sealing strip is filled in the partition groove 208 to fill the gap between adjacent adsorption pad units 204 and prevent air from leaking from the partition. The height of the elastic sealing strip is flush with the height of the adsorption pad unit 204, which ensures that the sealing strip and the adsorption pad unit 204 together form a flat sealing contact surface, avoiding gaps on the contact surface due to height difference. At the same time, it ensures that the sealing strip and the adsorption pad unit 204 can synchronously adhere to the detection contact surface during adsorption, ensuring the uniformity of the seal.

[0032] The magnetic block 206 is a permanent magnet block. The shape of the magnetic block 206 is adapted to the side shape of the adsorption pad unit 204. The material of the sealing adsorption block 205 is the same as that of the adsorption pad unit 204, and the sealing adsorption block 205 and the adsorption pad unit 204 are integrally formed.

[0033] The permanent magnet block can stably adhere to the metal parts of door and window frames or walls, providing auxiliary fixing force for the adsorption pad unit 204, enhancing the adhesion stability between the adsorption pad unit 204 and the contact surface, and preventing the adsorption pad unit 204 from shifting due to slight external vibrations or airflow impacts during the testing process; the shape of the magnetic block 206 is adapted to the side shape of the adsorption pad unit 204, ensuring that the magnetic block 206 can fit tightly against the side of the adsorption pad unit 204, avoiding gaps between the two that would affect the sealing effect; the sealing adsorption block 205 is made of the same material as the adsorption pad unit 204 and is integrally molded, ensuring consistency in physical properties and sealing effect between the two, while the integral molding structure can eliminate the connection gap between the sealing adsorption block 205 and the adsorption pad unit 204, further improving the sealing performance around the sealing adsorption block 205 and preventing air leakage from the connection point.

[0034] The adsorption holes 207 are evenly distributed in the vacuum chamber 203, and a filter screen is provided at the end of the adsorption holes 207 away from the airtight mounting head 103.

[0035] The adsorption holes 207 are evenly distributed within the vacuum chamber 203, ensuring that the negative pressure suction force in each area of ​​the vacuum chamber 203 is evenly transmitted to the adsorption pad unit 204. This ensures that each part of the adsorption pad unit 204 is evenly stressed and tightly adheres to the detection contact surface, preventing air leakage due to uneven suction causing some areas to not adhere tightly. A filter screen is installed at the end of the adsorption hole 207 away from the airtight mounting head 103, which can effectively filter dust, impurities, and other particulate matter in the air, preventing these substances from entering the adsorption hole 207 or the subsequent connected air circuit system. This avoids air circuit blockage affecting the negative pressure generation efficiency, while also protecting the internal components of the detection equipment from wear and tear caused by impurities, thus extending the service life of the equipment.

[0036] The support rod 101 is a telescopic support rod. The telescopic section of the support rod 101 has scale markings on its outer side, and the sealing cloth 105 is fixed to the support rod 101.

[0037] The telescopic support rod is designed to allow for flexible adjustment of the length of the support rod 101 according to the size of the inspection area to be covered by the airtight canopy 100. This enables the airtight canopy 100 to adapt to the inspection needs of doors and windows of different sizes, improving the versatility of the equipment. The scale markings on the outside of the telescopic section facilitate precise control of the telescopic length of the support rod 101 by the operator, ensuring that multiple support rods 101 can be adjusted to the same length. This guarantees the flatness and stability of the overall structure of the airtight canopy 100 and avoids tilting of the airtight canopy 100 or uneven stress on the sealing cloth 105 due to inconsistent lengths of the support rods 101. Fixing the sealing cloth 105 to the support rod 101 prevents the sealing cloth 105 from shifting due to airflow during the inspection process, ensuring that the sealing cloth 105 can always effectively cover the gap and maintain the sealed environment inside the airtight canopy 100.

[0038] In this embodiment, the on-site airtightness performance testing instrument for building doors and windows is used as follows: First, the size of the airtight canopy 100 is adjusted using the telescopic support rod 101. Then, the angle between the support rod 101 and the mounting head 102 is adjusted using the rotating shaft, so that the sealing plate 200 fits the door / window testing area. The outer sealing adsorption pad 201 on the outer side of the sealing plate 200 and the inner sealing adsorption pad 202 on the inner side are initially fixed by magnetic blocks 206 adsorbing the metal parts of the door / window frame. Then, the air pump is connected to the airtight mounting head 103 of the mounting head 102 via the connecting pipe 301. The air pump draws air to seal the outer side. The vacuum cavity 203 between the adsorption pad 201 and the inner sealing adsorption pad 202 forms a negative pressure. The negative pressure acts on the silicone adsorption pad unit 204 through the evenly distributed adsorption holes 207, causing it to deform and fit tightly against the surface of the door and window. The elastic sealing strip in the edge sealing lip and the partition groove 208 further blocks leakage. The sealing cloth 105 blocks external airflow interference. Finally, the detector 300 is connected to the detector mounting head 104 to conduct an airtightness test on the doors and windows inside the airtight shed 100. The filter screen prevents impurities from clogging the adsorption holes 207, ensuring efficient and accurate testing.

[0039] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A field testing instrument for the airtightness performance of building doors and windows, comprising an airtight canopy (100), a sealing plate (200), and a testing instrument (300), wherein an installation head (102) is provided on the side of the airtight canopy (100) away from the sealing plate (200), the testing instrument (300) is provided with a connecting pipe (301), the testing instrument (300) is connected to the installation head (102) through the connecting pipe (301), and the sealing plate (200) is installed on the edge of the airtight canopy (100), characterized in that: The sealing plate (200) is located on the outside of the airtight shed (100) and has an outer sealing adsorption pad (201). An inner sealing adsorption pad (202) is located on the inside of the sealing plate (200). A vacuum cavity (203) is provided between the outer sealing adsorption pad (201) and the inner sealing adsorption pad (202). A plurality of adsorption pad units (204) are provided between the outer sealing adsorption pad (201) and the inner sealing adsorption pad (202). A partition groove (208) is provided between the two sides of the adsorption pad unit (204). Magnetic blocks (206) are provided on both sides of the adsorption pad unit (204). A sealing adsorption block (205) is wrapped around the outside of the magnetic blocks (206). An adsorption hole (207) is provided in the vacuum chamber (203). An airtight mounting head (103) and a detector mounting head (104) are respectively provided on one side of the mounting head (102). The adsorption hole (207) is connected to the airtight mounting head (103).

2. The on-site testing instrument for the airtightness performance of building doors and windows according to claim 1, characterized in that: The mounting head (102) is connected to a support rod (101) via a rotating shaft. The other end of the support rod (101) is connected to the four corners of the sealing plate (200). The airtight shed (100) is located between the sealing plate (200) and the support rod (101) and is provided with a sealing cloth (105).

3. The on-site testing instrument for the airtightness performance of building doors and windows according to claim 1, characterized in that: The adsorption pad unit (204) is made of silicone material, and the edge of the adsorption pad unit (204) has a sealing lip.

4. The on-site testing instrument for the airtightness performance of building doors and windows according to claim 1, characterized in that: The depth of the partition groove (208) extends through the adsorption pad unit (204), and the partition groove (208) between two adjacent adsorption pad units (204) is filled with an elastic sealing strip, the height of which is flush with the height of the adsorption pad unit (204).

5. The on-site testing instrument for the airtightness performance of building doors and windows according to claim 1, characterized in that: The magnetic block (206) is a permanent magnet block. The shape of the magnetic block (206) is adapted to the side shape of the adsorption pad unit (204). The material of the sealing adsorption block (205) is the same as that of the adsorption pad unit (204), and the sealing adsorption block (205) and the adsorption pad unit (204) are integrally formed.

6. The on-site testing instrument for the airtightness performance of building doors and windows according to claim 1, characterized in that: The adsorption holes (207) are evenly distributed in the vacuum chamber (203), and a filter screen is provided at the end of the adsorption holes (207) away from the airtight mounting head (103).

7. The on-site testing instrument for the airtightness performance of building doors and windows according to claim 2, characterized in that: The support rod (101) is a telescopic support rod, and the telescopic section of the support rod (101) is provided with scale markings on the outside. The sealing cloth (105) is fixed on the support rod (101).

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