Engineering air tightness detection device

Abstract

The utility model relates to the technical field of air tightness detection, in particular to an engineering air tightness detection device. The device comprises a body; a lifting assembly is arranged in the machine body and penetrates through the top of the machine body. A sealing assembly for sealing the window is arranged on the lifting assembly; the sealing assembly comprises a driving part, a positioning part for positioning the appearance of the window, a sealing part for sealing the window through the driving part and the positioning part, and a ventilation part for inflating the sealing part to form an air pressure difference. The square sealing structure covers the window frame, then the air cylinder is started, the telescopic end of the air cylinder and the connecting plate jointly push the square sealing structure to press the window frame, and the window frame is sealed. And then the air blower is started to inflate the sealing structure. And finally, the numerical value change of the pressure sensor is observed, so that the air tightness condition of the window is judged, automatic sealing of the window is achieved, manual sealing is avoided, the working content of workers is simplified, and the labor intensity is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of air tightness detection, in particular to an engineering air tightness detection device. Background Art

[0002] Engineering air tightness testing device is a device used to test the air tightness performance of building structures, containers, pipelines or other equipment. This test is usually used to ensure that the building or engineering structure has the required air tightness during use to prevent the leakage of air or gas.

[0003] A Chinese patent document with authorization announcement number CN219178839U proposes an on-site detection device for air tightness of building doors and windows, including a base and a frame structure, wherein the base is connected to the frame structure through a lifting and extrusion structure, a film is fixedly connected to the side of the frame structure away from the lifting and extrusion structure, an inflation tube is fixedly connected to the middle of the film, and a pressure detector is fixedly connected to the other end of the film.

[0004] However, in the above application, although manual sealing of the window can be avoided, the film itself is made of relatively fragile material, is fixedly connected to the frame structure, and is not stored. The film is easily damaged when exposed to the external environment for a long time, which affects the airtightness test results. On the other hand, only a single cylinder is used to lift the frame structure, which easily leads to unstable movement, thereby failing to properly seal the window frame. Utility Model Content

[0005] In view of the problems existing in the background technology, an engineering air tightness detection device is proposed.

[0006] The utility model proposes an engineering air tightness detection device, comprising a body; a lifting assembly is arranged inside the body and runs through the top thereof; a sealing assembly for sealing the window is arranged on the lifting assembly. The sealing assembly comprises a driving member, a positioning member for positioning the window shape, a sealing member for sealing the window through the driving member and the positioning member, and a venting member for inflating air into the sealing member to form an air pressure difference. The driving member comprises a cylinder; the cylinder is located on the lifting end of the lifting assembly, and a telescopic frame is connected to its telescopic end. The positioning member comprises pressure plates which are symmetrically arranged and respectively connected to the two ends of the telescopic frame; a slide groove is arranged on the opposite side of the two pressure plates; two telescopic rods are slidably connected in the two slide grooves to form a square sealing structure with adjustable size. The sealing member includes a winding drum arranged on the upper pressure plate; a through slot is arranged on one side of the winding drum, and a winding rod is arranged inside for rotation; a spring is arranged inside the winding rod, and a film is wound around the outside; the outer end of the spring is connected to the inner wall of the winding rod, and the inner end is connected to the winding drum; the film covers the square sealing structure by extending through the through slot, and a tube insertion port is also arranged on the film, and multiple pressure sensors are evenly distributed. The ventilation member includes a blower; the blower is located on the lifting end of the lifting assembly, and a ventilation pipe matching the tube insertion port is arranged on one side; a solenoid valve is arranged on the ventilation pipe.

[0007] Preferably, a connecting plate is connected to the middle of the telescopic end of the cylinder; the connecting plate is connected to the telescopic frame.

[0008] Preferably, the telescopic frame includes a sleeve and a slide rod slidably connected to the sleeve; the sleeve is connected to the upper pressure plate; the slide rod is connected to the lower pressure plate; a slot is provided on one side of the sleeve; a plug-in column is movably provided in the slot; a plurality of plug-in holes are evenly provided on the same side of the slide rod and the slot; the plug-in column, the plug-in hole and the slot all match each other.

[0009] Preferably, telescopic rod one includes sleeve two and sliding rod two slidably connected to sleeve two; sleeve two is slidably connected to the upper pressure plate and has an opening on the side facing the film; sliding rod two is slidably connected to the lower pressure plate; and the side of the square sealing structure facing the film is on the same vertical plane.

[0010] Preferably, a magnetic suction groove 1 is provided at the lower end of the lower slide groove; an insert block is provided at the lower end of the film; the insert block is made of metal; and the magnetic suction groove 1 and the insert block match each other.

[0011] Preferably, the cross-section of the insert block is slightly larger than the through slot, and a pull rope is provided on the insert block.

[0012] Preferably, a second magnetic suction groove is provided at one end of the tube insertion port facing the telescopic frame; a ventilation pipe interface is provided at the end of the ventilation pipe opposite to the blower; the ventilation pipe interface is made of metal; and the second magnetic suction groove and the ventilation pipe interface match each other.

[0013] Preferably, the lifting assembly includes a motor arranged on the inner wall of the machine body; the driving end of the motor is connected to a connecting rod 1; the other end of the connecting rod 1 is rotatably connected to the inner wall of the machine body, and two bevel gears 1 are provided on it; the same sides of the two bevel gears 1 are respectively meshed and connected to bevel gears 2; the lower ends of the two bevel gears 2 are connected to a support rod, and a threaded rod passes through and is threadedly connected to the bevel gears 2; the upper end of the support rod is open and the lower end is connected to the machine body; the lower end of the threaded rod is slidably arranged inside the support rod, and telescopic rods 2 are arranged on both sides; the fixed end of the telescopic rod 2 faces downward and is connected to the machine body, and the telescopic end faces upward, slides through the machine body through a through hole, and is connected to a support plate, and a connecting rod 2 is also provided at the telescopic end; the connecting rod 2 is connected to the upper end of the threaded rod.

[0014] Compared with the prior art, the utility model has the following beneficial technical effects:

[0015] , by aligning the square sealing structure with the window frame and making the square sealing structure cover the window frame, and then starting the cylinder, the telescopic end of the cylinder and the connecting plate jointly push the square sealing structure to press the window frame and seal the window frame. After the sealing is completed, start the blower to inflate the sealing structure. Finally, observe the value change of the pressure sensor to judge the airtightness of the window, realize the automatic sealing of the window, avoid manual sealing, simplify the work content of the staff, and reduce the labor intensity.

[0016] , through the cooperation of the winding rod, the spring and the film, the film can be stored in the winding drum to avoid the film being exposed to the external environment for a long time, causing the film to be damaged, thereby affecting the results of the air tightness test. At the same time, the film can be reused, reducing the frequency of film replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the utility model from an overall perspective;

[0018] Figure 2 This is a schematic diagram of the overall structure of the utility model from angle 2;

[0019] Figure 3 This is a cross-sectional view of the positioning member and the sealing member of the utility model;

[0020] Figure 4 This is a cross-sectional view of the lifting assembly of the utility model;

[0021] Figure 5 This is a structural schematic diagram of a magnetic suction slot and an insert block of the utility model;

[0022] Figure 6 It is a structural schematic diagram of the second magnetic suction groove and the ventilation pipe interface of the utility model.

[0023] 1. Body; 101. Through hole; 2. Motor; 3. Connecting rod 1; 4. Bevel gear 1; 5. Bevel gear 2; 6. Support rod; 7. Threaded rod; 8. Connecting rod 2; 9. Telescopic rod 2; 10. Support plate; 11. Cylinder; 12. Connecting plate; 13. Telescopic frame; 1301. Sleeve 1; 1302. Slide bar 1; 14. Press plate; 15. Slide groove; 16. Magnetic groove 1; 17. Telescopic rod 1; 1701. Sleeve 2; 1702. Slide bar 2; 18. Winding drum; 19. Winding rod; 20. Film; 21. Insertion port; 22. Magnetic groove 2; 23. Pressure sensor; 24. Insert block; 25. Pull rope; 26. Blower; 27. Ventilation pipe; 28. Solenoid valve; 29. ​​Ventilation pipe interface; 30. Socket; 31. Plug column. DETAILED DESCRIPTION Example

[0024] like Figure 1-3 As shown, the utility model proposes an engineering air tightness detection device, which includes a body 1; a lifting assembly is arranged inside the body 1 and penetrates through the top thereof; a sealing assembly for sealing the window is arranged on the lifting assembly.

[0025] The sealing component includes a driving member, a positioning member for positioning the window shape, a sealing member for sealing the window through the driving member and the positioning member, and a venting member for inflating air into the sealing member to form an air pressure difference.

[0026] The driving member comprises a cylinder 11 ; the cylinder 11 is located on the lifting end of the lifting assembly, and a telescopic frame 13 is connected to the telescopic end of the cylinder 11 .

[0027] The positioning member includes symmetrically arranged pressing plates 14 respectively connected to the two ends of the telescopic frame 13; a slide groove 15 is provided on the opposite side of the two pressing plates 14; two telescopic rods 17 are slidably connected in the two slide grooves 15 to form a square sealing structure with adjustable size.

[0028] The sealing member includes a winding drum 18 arranged on the upper pressure plate 14; a through groove is provided on one side of the winding drum 18, and a winding rod 19 is rotatably provided inside; a spring is provided inside the winding rod 19, and a film 20 is wound around the outside; the outer end of the spring is connected to the inner wall of the winding rod 19, and the inner end is connected to the winding drum 18; the film 20 covers the square sealing structure by extending out of the through groove, and a pipe insertion port 21 is also provided on the film 20, and a plurality of pressure sensors 23 are evenly distributed.

[0029] The ventilation member includes a blower 26 ; the blower 26 is located on the lifting end of the lifting assembly, and a ventilation pipe 27 cooperating with the insertion port 21 is provided on one side; a solenoid valve 28 is provided on the ventilation pipe 27 .

[0030] By aligning the square sealing structure with the window frame and making the square sealing structure cover the window frame, and then starting the cylinder 11, the telescopic end of the cylinder 11 and the connecting plate 12 jointly push the square sealing structure to press the window frame, thereby sealing the window frame. After the sealing is completed, the blower 26 is started to inflate the sealing structure. Finally, the value change of the pressure sensor 23 is observed to judge the airtightness of the window, thereby realizing automatic sealing of the window, avoiding manual sealing, simplifying the work content of the staff, and reducing the labor intensity. Example

[0031] like Figure 1-6 As shown, the engineering air tightness detection device proposed by the utility model, compared with the first embodiment, this embodiment also includes: a connecting plate 12 is connected to the middle of the telescopic end of the cylinder 11; the connecting plate 12 is connected to the telescopic frame 13; the positioning member can be pushed more stably. The telescopic frame 13 includes a sleeve 1301 and a slide bar 1302 slidably connected to the sleeve 1301; the sleeve 1301 is connected to the upper pressure plate 14; the slide bar 1302 is connected to the lower pressure plate 14; a slot is provided on one side of the sleeve 1301; a plug-in column 31 is movably provided in the slot; a plurality of plug-in holes 30 are evenly provided on the same side of the slide bar 1302 and the slot; the plug-in column 31 matches the plug-in hole 30 and the slot; the shape of the square sealing structure can be fixed. The telescopic rod 17 includes a sleeve 1701 and a slide bar 1702 slidably connected to the sleeve 1701; the sleeve 1701 is slidably connected to the upper pressure plate 14, and the side facing the film 20 is open; the slide bar 1702 is slidably connected to the lower pressure plate 14; the side of the square sealing structure facing the film 20 is on the same vertical plane; the film 20 can be completely sealed to prevent gas from overflowing during detection and thus affecting the detection result. A magnetic suction groove 16 is provided at the lower end of the slide 15 located below; an insert block 24 is provided at the lower end of the film 20; the insert block 24 is made of metal; the magnetic suction groove 16 and the insert block 24 match each other; the insert block 24 can be fixed to prevent the film 20 from rolling back. The cross-section of the insert block 24 is slightly larger than the through groove, and a pull rope 25 is also provided on it to prevent the film 20 from being unable to be reached when the window frame is too high. A second magnetic groove 22 is provided at one end of the insertion port 21 facing the telescopic frame 13; a ventilation pipe interface 29 is provided at the end of the ventilation pipe 27 opposite to the blower 26; the ventilation pipe interface 29 is made of metal; the second magnetic groove 22 and the ventilation pipe interface 29 match each other; the ventilation pipe 27 and the film 20 can form a closed structure to prevent gas from overflowing during inflation.

[0032] like Figure 4As shown, the lifting assembly includes a motor 2 arranged at the inner wall of the body 1; the driving end of the motor 2 is connected to a connecting rod 3; the other end of the connecting rod 3 is rotatably connected to the inner wall of the body 1, and two bevel gears 4 are arranged on it; the same sides of the two bevel gears 4 are respectively meshed and connected to bevel gears 5; the lower ends of the two bevel gears 5 are connected to a support rod 6, and a threaded rod 7 passes through and is threadedly connected to the bevel gears 5; the upper end of the support rod 6 is open and the lower end is connected to the body 1; the lower end of the threaded rod 7 is slidably arranged inside the support rod 6, and telescopic rods 2 9 are arranged on both sides; the fixed end of the telescopic rod 2 9 faces downward and is connected to the body 1, and the telescopic end faces upward, slides through the body 1 through the through hole 101, and is connected to a support plate 10, and a connecting rod 2 8 is also arranged at the telescopic end; the connecting rod 2 8 is connected to the upper end of the threaded rod 7, so that the sealing assembly can be lifted and lowered, and the window shape can be better positioned.

[0033] The working principle of the utility model is as follows: when working, first align the square sealing structure with the window frame, then start the motor 2, drive the connecting rod 13 and the bevel gear 14 to rotate, thereby driving the bevel gear 25 to rotate, so that the threaded rod 7 moves up and down, and then the telescopic rod 29 is telescoped and drives the support plate 10 to rise and fall. When the support plate 10 rises and falls until the upper pressure plate 14 is higher than the upper edge of the window frame, turn off the motor 2, pull the lower pressure plate 14 downward along the telescopic rod 17, and when the lower pressure plate 14 moves to below the lower edge of the window frame, insert the plug column 31 into the corresponding socket 30 to fix the position of the lower pressure plate 14. Then pull the telescopic rod 17 to both sides along the slide 15 until the telescopic rod 17 exceeds both sides of the window frame, so that the square sealing structure covers the window frame. Then pull the pull rope 25 to pull out the film 20 downward, insert the plug block 24 into the magnetic suction groove 16, and fix the film 20. Finally, insert the vent pipe interface 29 on the vent pipe 27 into the magnetic suction groove 22 on the insertion port 21, and start the cylinder 11. The telescopic end of the cylinder 11 and the connecting plate 12 jointly push the square sealing structure to press the window frame to seal the window frame. After the sealing is completed, start the blower 26 to inflate the sealing structure. After a period of time, turn off the blower 26 and open the solenoid valve 28 to prevent air backflow. At the same time, observe the value change of the pressure sensor 23 to judge the air tightness of the window. The distribution of multiple pressure sensors 23 can also help determine the leakage point.

[0034] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. An engineering air tightness detection device, characterized in that: The machine body (1) comprises a machine body (1); a lifting assembly is arranged inside the machine body (1) and through the top thereof; a sealing assembly for sealing the window is arranged on the lifting assembly; The sealing assembly includes a driving member, a positioning member for positioning the window shape, a sealing member for sealing the window through the driving member and the positioning member, and a venting member for inflating air into the sealing member to form an air pressure difference; The driving member comprises a cylinder (11); the cylinder (11) is located on the lifting end of the lifting assembly, and the telescopic end of the cylinder (11) is connected to a telescopic frame (13); The positioning member comprises symmetrically arranged pressing plates (14) respectively connected to the two ends of the telescopic frame (13); a slide groove (15) is provided on the opposite side of the two pressing plates (14); two telescopic rods (17) are slidably connected in the two slide grooves (15) to form a square sealing structure with adjustable size; The sealing member comprises a winding drum (18) arranged on an upper pressure plate (14); a through slot is arranged on one side of the winding drum (18), and a winding rod (19) is rotatably arranged inside the winding rod (19); a clockwork spring is arranged inside the winding rod (19), and a film (20) is wound around the outside; the outer end of the clockwork spring is connected to the inner wall of the winding rod (19), and the inner end is connected to the winding drum (18); the film (20) covers the square sealing structure by extending out of the through slot, and a tube insertion port (21) is also arranged on the film (20), and a plurality of pressure sensors (23) are evenly distributed; The ventilation component comprises a blower (26); the blower (26) is located on the lifting end of the lifting assembly, and is provided with a ventilation pipe (27) that cooperates with the insertion port (21) on one side; and a solenoid valve (28) is provided on the ventilation pipe (27).

2. The engineering air tightness detection device according to claim 1, characterized in that: A connecting plate (12) is connected to the middle of the telescopic end of the cylinder (11); the connecting plate (12) is connected to the telescopic frame (13).

3. The engineering air tightness detection device according to claim 1, characterized in that: The telescopic frame (13) comprises a sleeve (1301) and a slide bar (1302) slidably connected to the sleeve (1301); the sleeve (1301) is connected to the upper pressure plate (14); the slide bar (1302) is connected to the lower pressure plate (14); a slot is provided on one side of the sleeve (1301); a plug-in column (31) is movably provided in the slot; a plurality of plug-in holes (30) are evenly provided on the same side of the slide bar (1302) and the slot; the plug-in column (31) matches the plug-in hole (30) and the slot.

4. The engineering air tightness detection device according to claim 1, characterized in that: The telescopic rod 1 (17) includes a sleeve 2 (1701) and a slide rod 2 (1702) slidably connected to the sleeve 2 (1701); the sleeve 2 (1701) is slidably connected to the upper pressure plate (14) and has an opening on the side facing the film (20); the slide rod 2 (1702) is slidably connected to the lower pressure plate (14); and the side of the square sealing structure facing the film (20) is on the same vertical plane.

5. The engineering air tightness detection device according to claim 1, characterized in that: A magnetic suction groove (16) is provided at the lower end of the slide groove (15) located below; an insert block (24) is provided at the lower end of the film (20); the insert block (24) is made of metal; the magnetic suction groove (16) and the insert block (24) match each other.

6. The engineering air tightness detection device according to claim 5, characterized in that: The cross section of the insert block (24) is slightly larger than the through slot, and a draw cord (25) is also provided on the insert block.

7. The engineering air tightness detection device according to claim 1, characterized in that: A second magnetic suction groove (22) is provided at one end of the tube insertion opening (21) facing the telescopic frame (13); a ventilation pipe interface (29) is provided at one end of the ventilation pipe (27) opposite to the blower (26); the ventilation pipe interface (29) is made of metal; the second magnetic suction groove (22) and the ventilation pipe interface (29) match each other.

8. The engineering air tightness detection device according to claim 1, characterized in that: The lifting assembly comprises a motor (2) arranged at the inner wall of a machine body (1); the driving end of the motor (2) is connected to a connecting rod (3); the other end of the connecting rod (3) is rotatably connected to the inner wall of the machine body (1), and two bevel gears (4) are arranged on the connecting rod; the same side of the two bevel gears (4) are respectively meshed and connected to bevel gears (5); the lower ends of the two bevel gears (5) are connected to a support rod (6), and a threaded rod (7) passes through and is threadedly connected to the bevel gears (5); the upper end of the support rod (6) is open and the lower end is connected to the machine body (1); the lower end of the threaded rod (7) is slidably arranged inside the support rod (6), and telescopic rods (9) are arranged on both sides; the fixed end of the telescopic rod (9) faces downward and is connected to the machine body (1), and the telescopic end faces upward and slides through the machine body (1) through a through hole (101), and is connected to a support plate (10), and a connecting rod (8) is also arranged at the telescopic end; the connecting rod (8) is connected to the upper end of the threaded rod (7).

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