A multipoint lock window sealing device

Abstract

The application relates to a multi-point lock window sealing device, which comprises an inner frame, a window frame and a multi-point lock, the multi-point lock comprises a lock body and a driving rod, the driving rod is coaxially fixedly connected with a first gear, a first gear rack meshing with the first gear is slidably connected to the inner frame, a cylinder is arranged on the inner frame, a piston is slidably connected in the cylinder, a connecting rod is connected between the first gear rack and the piston, the piston and the inner wall of the cylinder body form a pressure cavity, a wing plate is arranged on the outer edge of the inner frame, and the wing plate is provided with a sealing air bag. The driving rod is rotated, the first gear is rotated along with the driving rod, the first gear rack is driven to slide towards the cylinder, the first gear rack drives the piston to slide to the bottom of the cylinder through the connecting rod, the air in the pressure cavity is compressed, the air in the pressure cavity is pressed into the sealing air bag through an air pipe, the sealing air bag is inflated and expanded, and the gap between the wing plate and the window frame is filled and sealed. The application has the effect of enhancing the sealing performance of the multi-point lock window.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of doors and windows, in particular to a multi-point lock window sealing device. BACKGROUND

[0002] A window is composed of a window frame, an inner frame, a glass and a movable component. The window frame is responsible for supporting the main structure of the window body and can be made of wood, metal, ceramic or plastic material. The glass part is attached to the inner frame. The movable component is mainly made of metal material. The inner frame is rotationally connected to the window frame and is used to switch the open and closed states of the window.

[0003] Natural light from the outside can enter the room through the window. The window is also a necessary structure in the construction of a house, which is a channel for ventilation and air exchange. However, the window is also a weak link in the security of the house. In order to enhance the security of the house, a locking mechanism is provided on the window to prevent the window from being opened from the outside. The locking mechanism usually adopts a simple and practical single-point lock. With the improvement of people's awareness of security, more and more multi-point locks with better security performance are selected and applied. The multi-point lock window is designed with multiple locking points distributed at different positions of the inner frame of the window. When the window is locked, different locking points are respectively connected with the corresponding locking slots on the window frame.

[0004] According to the related technology described above, the multi-point lock window is provided with locking points at multiple positions of the inner frame of the window, and corresponding lock holes are provided at multiple positions of the window frame, which affects the sealing performance of the window and reduces the use experience. SUMMARY

[0005] In order to enhance the sealing performance of the multi-point lock window, the present application provides a multi-point lock window sealing device.

[0006] The present application provides a multi-point lock window sealing device, which adopts the following technical scheme:

[0007] A multi-point lock window sealing device, comprising an inner frame for fixing a glass, a window frame for connecting with a wall body and a multi-point lock for locking the window. The inner frame is rotationally connected to the window frame. The multi-point lock comprises a lock body and a driving rod rotationally connected to the lock body. The driving rod is coaxially fixedly connected with a first gear. A first gear rack engaged with the first gear is slidably connected to the inner frame. A pneumatic cylinder is arranged on the inner frame. A piston is slidably connected in the pneumatic cylinder. A connecting rod is connected between the first gear rack and the piston. The piston and the inner wall of the pneumatic cylinder form a pressure chamber. A wing plate for abutting against the window frame is arranged on the outer edge of the inner frame. A sealing air bag made of elastic material is arranged on the side of the wing plate close to the window frame. A gas pipe is connected between the pneumatic cylinder and the sealing air bag.

[0008] When the window needs to be locked, the inner frame is rotated until the inner frame is completely embedded in the window frame, the wing plate abuts against the window frame, and the inner frame and the window frame are locked by rotating the driving rod. In the process of rotating the driving rod, the first gear rotates with the driving rod, the first rack is driven to slide towards the cylinder, the first rack drives the piston to slide towards the bottom of the cylinder through the connecting rod, the air in the pressure chamber is compressed, the air in the pressure chamber is pressed into the sealed air bag through the air pipe, the sealed air bag inflates to fill the gap between the wing plate and the window frame, and the air is prevented from passing through, thereby improving the sealing performance of the multi-point locking window.

[0009] Optionally, the window frame is provided with a sealing groove matched with the sealed air bag, and the sealed air bag is embedded in the sealing groove when the wing plate abuts against the window frame.

[0010] By adopting the above technical scheme, the sealing groove helps to increase the contact area of the sealed air bag and the window frame, and provides space for the expansion ring of the sealed air bag, thereby improving the sealing effect between the wing plate and the window frame and improving the sealing performance of the multi-point locking window.

[0011] Optionally, the sealing groove is provided with a buffer pad made of elastic material, and the buffer pad is unfolded and fixed in the sealing groove, and the sealed air pad abuts against the buffer pad when the sealed air bag is embedded in the sealing groove.

[0012] By adopting the above technical scheme, the buffer pad is made of soft rubber material, which helps to improve the sealing performance between the sealed air bag and the buffer pad.

[0013] Optionally, the inner frame is provided with an air pressure sensor for detecting the air pressure in the pressure chamber.

[0014] By adopting the above technical scheme, the window always has one surface in contact with the outdoor, and is obviously affected by the change of outdoor temperature. When the air temperature is high, the air in the pressure chamber and the sealed air bag is easy to expand, which may cause the sealed air bag to burst and lose the sealing effect. The air pressure sensor can detect the air pressure in the pressure chamber and the sealed air bag, and can be processed in time when the pressure is too high to prevent the sealed air bag from bursting.

[0015] Optionally, the inner frame is provided with a detection control circuit, and the detection control circuit comprises an induction module, a comparison module and a control module.

[0016] The induction module comprises an air pressure sensor, and the air pressure sensor is used to measure the air pressure in the pressure chamber and output an induction signal;

[0017] The comparison module is electrically connected with the induction module, and the comparison module is used to receive the induction signal of the induction module. When the comparison module receives the induction signal, the voltage value corresponding to the induction signal is compared with a preset voltage value. If the voltage value of the induction signal is greater than the preset voltage value, the comparison module outputs a start signal.

[0018] The control module is electrically connected with the comparison module, and is configured to receive a starting signal of the comparison module; and the control module outputs a control signal when receiving the starting signal, and the control signal controls the electromagnetic valve to open.

[0019] By adopting the above technical scheme, the air pressure sensor of the induction module senses and collects the air pressure in the pressure cavity and outputs an induction signal, the comparison module receives the induction signal, the comparison module compares the voltage value of the received induction signal with a preset voltage value, the preset voltage value corresponds to the maximum air pressure that the sealed air bag can withstand during normal use, if the voltage value corresponding to the induction signal is greater than the preset voltage value, a starting signal is output, the control module receives the starting signal and outputs a control signal, the control signal controls the electromagnetic valve to open, the gas in the pressure cavity is discharged, the air pressure in the pressure cavity and the sealed air bag is reduced, and the sealed air bag is prevented from being burst due to excessively high air pressure when the temperature rises.

[0020] Optionally, the lock body comprises a locking rod and a transmission mechanism for controlling and driving the locking rod, the locking rod is slidingly connected to the inner frame, the window frame is provided with a locking groove matched with the locking rod, the locking rod is embedded in the locking groove when the window is in a locked state, the window frame is slidingly provided with a pressing block for pressing the locking rod, the sliding direction of the pressing block is perpendicular to the length direction of the locking groove, and the window frame is rotationally connected with a threaded rod for driving the pressing block to slide.

[0021] By adopting the above technical scheme, in order to enable the locking rod to smoothly enter the locking groove, the cross-sectional size of the locking groove is usually greater than the cross-sectional size of the locking rod, so that the inner frame still shakes after the window is locked, thereby affecting the stability and sealing performance of the window. The pressing block is arranged, the threaded rod is rotated to drive the pressing block to slide and press the locking rod to be fixed in the locking groove after the locking rod enters the locking groove, which helps to reduce the shaking of the inner frame and improve the stability of the window.

[0022] Optionally, the locking groove is slidingly connected with a contact plate, the sliding direction of the contact plate is parallel to the length direction of the locking groove, the contact plate is fixedly connected with a second gear rack on the side away from the locking rod, the window frame is rotationally connected with a transmission rod perpendicular to the second gear rack, the transmission rod is coaxially fixedly connected with a second gear engaged with the second gear rack, the transmission rod is coaxially fixedly connected with a driving pulley, the threaded rod is coaxially fixedly connected with a driven pulley, and a belt for transmission is connected between the driving pulley and the driven pulley.

[0023] By adopting the technical scheme, the contact plate is pushed to slide in the process of the locking rod entering the locking groove, the second rack is driven to move by the contact plate, and the second gear is driven to rotate by the second rack, the transmission rod is driven to rotate by the second gear, the driving pulley is driven to rotate by the transmission rod through the belt, and the threaded rod is driven to rotate by the driving pulley.

[0024] Optionally, the extrusion block comprises an abutting block for abutting with the locking rod and a connecting block for connecting with the threaded rod, and the abutting block is connected with the connecting block through the elastic member.

[0025] By adopting the technical scheme, the elastic member is arranged, so that the movement of the locking rod is limited by preventing the pressure between the extrusion block and the locking rod from being too large.

[0026] In summary, the present application has at least one of the following beneficial technical effects:

[0027] 1. When closing and locking the window, the inner frame is first rotated to be embedded in the window frame, at this time, the wing plate abuts against the window frame, the lock body is driven by rotating the driving rod to lock the inner frame on the window frame, in the process, the first gear is synchronously rotated with the driving rod, the first gear drives the first rack to slide towards the cylinder, the first rack drives the piston to slide to the bottom of the cylinder through the connecting rod, thereby compressing the air in the pressure chamber, increasing the pressure, the air in the pressure chamber is pressed into the sealed air bag through the air pipe, the sealed air bag is inflated and expanded, the gap between the wing plate and the window frame is filled and sealed, air is prevented from passing through, which helps to enhance the sealing performance of the multi-point lock window;

[0028] 2. In order to enable the locking rod to smoothly enter the locking groove, the cross-sectional size of the locking groove is usually larger than that of the locking rod, after the window is locked, the inner frame still shakes, which affects the stability of the window, after the locking rod enters the locking groove, the threaded rod is rotated to drive the extrusion block to slide and extrude the locking rod to be fixed in the locking groove, which helps to reduce the shaking of the inner frame and improve the stability of the window. BRIEF DESCRIPTION OF DRAWINGS

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

[0030] Figure 2 is an exploded schematic diagram of the embodiment of the present application.

[0031] Figure 3 is Figure 2 is an enlarged schematic diagram of part A in

[0032] Figure 4 is a schematic diagram of the internal structure of the embodiment of the present application.

[0033] Figure 5 is Figure 4 is an enlarged schematic view of part B in figure 1.

[0034] Figure 6 is a schematic view for showing the induction module, comparison module and control module in the embodiment of the present application.

[0035] Figure 7 is a schematic view for showing the internal structure of the locking rod in the embodiment of the present application.

[0036] Figure 8 is a schematic view for showing the structure of the extrusion block in the embodiment of the present application.

[0037] Reference signs: 1, inner frame; 11, first rack; 12, air cylinder; 121, piston; 122, connecting rod; 123, pressure cavity; 13, air pressure sensor; 2, window frame; 21, sealing groove; 211, buffer pad; 22, locking groove; 221, contact plate; 222, second rack; 23, extrusion block; 231, abutting block; 232, connecting block; 233, elastic member; 24, threaded rod; 241, driven pulley; 25, transmission rod; 251, second gear; 252, driving pulley; 253, belt; 3, multipoint lock; 31, driving rod; 311, first gear; 32, locking rod; 4, wing plate; 41, sealing air bag; 411, air pipe; 51, induction module; 52, comparison module; 53, control module; 531, electromagnetic valve. DETAILED DESCRIPTION

[0038] The present application is further described in detail below with reference to all the accompanying drawings.

[0039] The embodiment of the present application discloses a multipoint lock window sealing device.

[0040] With reference to Figure 1 and Figure 2 , a multipoint lock window sealing device comprises an inner frame 1, a window frame 2 and a multipoint lock 3, the inner frame 1 is provided with glass for light transmission, and the inner frame 1 is rotationally connected to the window frame 2, the multipoint lock 3 is used for locking and fixing the window in a closed state, the multipoint lock 3 belongs to the prior art, and the present embodiment does not elaborate too much, although the multipoint lock 3 window has excellent anti-theft performance, the window using the multipoint lock 3 is provided with lock points at multiple positions of the window inner frame 1 and corresponding lock holes, which affects the sealing performance of the window and the use experience of the window. The present application enhances the sealing performance of the multipoint lock 3 window by setting a sealing air bag 41 and automatically inflating the sealing air bag 41 when the window is locked.

[0041] With reference to Figure 2 , Figure 3 and Figure 4The multi-point lock 3 comprises a lock body and a driving rod 31, the lock body is used for locking the window, and the driving rod 31 is rotationally connected to the lock body and used for driving the locking and unlocking actions of the lock body. The driving rod 31 is coaxially and fixedly connected with a first gear 311, and the first gear 311 rotates with the driving rod 31 in the process of rotating the driving rod 31. The inner frame 1 is slidably connected with a first rack 11, the first rack 11 is engaged with the first gear 311, the inner frame 1 is provided with a cylinder 12, the cylinder 12 is slidably connected with a piston 121, the piston 121 and the inner wall of the cylinder body form a pressure chamber 123, the rotating first gear 311 drives the first rack 11 to slide towards the cylinder 12, the first rack 11 and the piston 121 are connected with a connecting rod 122, the sliding first rack 11 drives the piston 121 to slide to the bottom of the cylinder 12 through the connecting rod 122, and the air in the pressure chamber 123 is compressed. The outer edge of the inner frame 1 is provided with a wing plate 4, the wing plate 4 is provided with a sealed air bag 41 made of elastic material on the side close to the window frame 2, and the pressure cylinder and the sealed air bag 41 are communicated with an air pipe 411. When the window is closed, the inner frame 1 is completely embedded in the window frame 2, and the wing plate 4 abuts against the window frame 2. The air in the pressure chamber 123 is pressed into the sealed air bag 41 through the air pipe 411, the sealed air bag 41 is inflated and expanded, the gap between the wing plate 4 and the window frame 2 is filled and sealed, air is prevented from passing through, and the sealing performance of the multi-point lock 3 is improved.

[0042] With reference to Figure 2 The window frame 2 is provided with a sealing groove 21, the position and length of the sealing groove 21 are matched with the sealed air bag 41, and when the wing plate 4 abuts against the window frame 2, the sealed air bag 41 is embedded in the sealing groove 21. The sealed air bag 41 is inflated and expanded, the sealed air bag 41 abuts against the inner wall of the sealing groove 21, the contact area between the sealed air bag 41 and the window frame 2 is increased, space is provided for the expansion of the sealed air bag 41, the sealed air bag 41 is more fully expanded, and the sealing effect between the wing plate 4 and the window frame 2 is improved.

[0043] With reference to Figure 2 The sealing groove 21 is provided with a buffer pad 211 made of soft rubber material, the buffer pad 211 is unfolded and fixed in the sealing groove 21, and when the sealed air bag 41 is embedded in the sealing groove 21, the sealed air bag 41 abuts against the buffer pad 211. The buffer pad 211 is expanded with the expansion of the sealed air bag 41, and the sealing performance between the sealed air bag 41 and the buffer pad 211 is improved.

[0044] With reference to Figure 3 and Figure 5The side of the window needs to be in contact with the outdoor, and is obviously affected by the outdoor temperature change. When the temperature is high, the air in the pressure cavity 123 and the sealing air bag 41 expands, which is easy to cause the sealing air bag 41 to burst, thereby losing the sealing effect. The inner frame 1 is provided with an air pressure sensor 13 for detecting the air pressure in the pressure cavity 123. The air pressure in the pressure cavity 123 and the sealing air bag 41 can be detected at any time, which facilitates people to make timely treatment when the pressure is too high to prevent the sealing air bag 41 from bursting.

[0045] With reference to Figure 3 , Figure 5 and Figure 6 , the detection and control circuit includes an induction module 51, a comparison module 52 and a control module 53:

[0046] The induction module 51, the air pressure sensor 13 measures the air pressure in the pressure cavity 123 and outputs an induction signal;

[0047] The comparison module 52 includes:

[0048] The comparator T, the positive input end of the comparator T is electrically connected with the output end of the air pressure sensor 13;

[0049] The triode Q, the base of the triode Q is electrically connected with the output end of the comparator T;

[0050] The resistor R1, one end of the resistor R1 is electrically connected with the collector of the triode Q, and the other end of the resistor R1 is electrically connected with the power supply VCC;

[0051] The electromagnetic coil KA1 of the relay, one end of the electromagnetic coil KA1 of the relay is electrically connected with the emitter of the triode Q;

[0052] The resistor R2, one end of the resistor R2 is electrically connected with the electromagnetic coil KA1 of the relay away from the triode Q, and the other end of the resistor R2 is grounded;

[0053] The control module 53 includes:

[0054] The normally open switch KA1-1 of the relay, one end of the normally open switch KA1-1 of the relay is electrically connected between the electromagnetic coil KA1 of the relay and the resistor R2;

[0055] The electromagnetic valve 531, one end of the electromagnetic valve 531 is electrically connected with the normally open switch KA1-1 of the relay away from the resistor R2;

[0056] The resistor R3, one end of the resistor R3 is electrically connected with the electromagnetic valve 531 away from the normally open switch KA1-1 of the relay, and the other end of the resistor R3 is grounded.

[0057] With reference to Figure 3 , Figure 5 and Figure 6The air pressure sensor 13 measures the air pressure in the pressure cavity 123 and outputs a sensing signal. The comparator T receives the sensing signal, compares the voltage value corresponding to the sensing signal with a preset voltage value corresponding to the maximum air pressure that the sealed air bag 41 can withstand in normal use, and outputs a starting signal when the voltage value corresponding to the sensing signal is greater than the preset voltage value. The control module 53 receives the starting signal and outputs a control signal. The electromagnetic valve 531 is opened to discharge the gas in the pressure cavity 123, thereby reducing the air pressure in the pressure cavity 123 and the sealed air bag 41 and preventing the sealed air bag 41 from exploding due to excessively high air pressure when the temperature rises.

[0058] With reference to Figure 7 and Figure 8 In order to enable the locking rod 32 to smoothly enter the locking groove 22 and prevent jamming, the cross-sectional size of the locking groove 22 is greater than the cross-sectional size of the locking rod 32. After the window is locked, the inner frame 1 still has a space for swinging, which affects the stability and sealing performance of the window. The lock body includes the locking rod 32 and a transmission mechanism for controlling and driving the locking rod 32. The transmission mechanism belongs to the prior art, and thus will not be described in detail in the present embodiment. The locking rod 32 is slidingly connected to the inner frame 1. The window frame 2 is provided with a locking groove 22 that is adapted to the locking rod 32. When the window is in the locked state, the locking rod 32 is embedded in the locking groove 22. The window frame 2 is slidingly provided with an extrusion block 23. The sliding direction of the extrusion block 23 is perpendicular to the length direction of the locking groove 22. The window frame 2 is rotatably provided with a threaded rod 24. The extrusion block 23 is threadedly connected to the threaded rod 24. After the locking rod 32 enters the locking groove 22, the threaded rod 24 is rotated to drive the extrusion block 23 to slide and extrude the locking rod 32 to be fixed in the locking groove 22, which helps to reduce the swinging of the inner frame 1 and improve the stability of the window.

[0059] With reference to Figure 7 and Figure 8The contact plate 221 is slidably connected in the locking groove 22, the sliding direction of the contact plate 221 is parallel to the length direction of the locking groove 22, and the contact plate 221 is pushed to slide in the process that the locking rod 32 enters the locking groove 22. The second rack 222 is fixedly connected to the side of the contact plate 221 away from the locking rod 32, the transmission rod 25 is rotatably connected to the window frame 2 and is perpendicular to the second rack 222, the second gear 251 is coaxially fixedly connected to the transmission rod 25 and is in mesh with the second rack 222, the contact plate 221 drives the second rack 222 to move and in turn drives the second gear 251 to rotate, the rotating second gear 251 drives the transmission rod 25 to rotate, the driving pulley 252 is coaxially fixedly connected to the transmission rod 25, the driven pulley 241 is coaxially fixedly connected to the threaded rod 24, and the belt 253 for transmission is connected between the driving pulley 252 and the driven pulley 241. The transmission rod 25 drives the driving pulley 252 to rotate, the driving pulley 252 drives the driven pulley 241 to rotate through the belt 253, and in turn drives the threaded rod 24 to rotate. In the process that the locking rod 32 enters the locking groove 22, the automatic rotation of the threaded rod 24 can be realized through the contact plate 221 and other components, and the extrusion block 23 is driven to press the locking rod 32 tightly.

[0060] With reference to Figure 8 The extrusion block 23 comprises the abutting block 231 for abutting with the locking rod and the connecting block 232 for connecting with the threaded rod 24, the elastic member 233 is connected between the abutting block 231 and the connecting block 232, the elastic member 233 is made of a spring, and the movement of the locking rod 32 can be limited by preventing the pressure between the extrusion block 23 and the locking rod 32 from being too large.

[0061] The implementation principle of the multi-point lock window sealing device is as follows: when the window is locked, the inner frame 1 is rotated until the inner frame 1 is completely embedded in the window frame 2, the wing plate 4 abuts against the window frame 2, and the rotation of the driving rod 31 drives the locking of the inner frame 1 and the window frame 2. In the process of rotating the driving rod 31, the first gear 311 rotates with the driving rod 31, drives the first rack 11 to slide towards the air cylinder 12, and drives the piston 121 to slide towards the bottom of the air cylinder 12 through the connecting rod 122, so as to compress the air in the pressure chamber 123. The air in the pressure chamber 123 is pressed into the sealing air bag 41 through the air pipe 411, the sealing air bag 41 is inflated and expanded, the gap between the wing plate 4 and the window frame 2 is filled and sealed, air is prevented from passing through, and the sealing performance of the multi-point lock 3 window is improved.

[0062] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: any equivalent changes made on the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A multi-point locking window sealing device comprising an inner frame (1) for fixing a glass, a window frame (2) for connecting with a wall body and a multi-point lock (3) for locking the window, the inner frame (1) being pivotally connected to the window frame (2), characterized in that: The multipoint lock (3) comprises a lock body and a driving rod (31) rotationally connected to the lock body, the driving rod (31) is coaxially fixedly connected with a first gear (311), a first rack (11) meshing with the first gear (311) is slidably connected to the inner frame (1), the inner frame (1) is provided with a cylinder (12), a piston (121) is slidably connected in the cylinder (12), a connecting rod (122) is connected between the first rack (11) and the piston (121), the piston (121) and the inner wall of the cylinder (12) form a pressure chamber (123), the outer edge of the inner frame (1) is provided with a wing plate (4) for abutting against the window frame (2), the side of the wing plate (4) close to the window frame (2) is provided with a sealing air bag (41) made of elastic material, a breather pipe (411) is connected between the pressure chamber (123) and the sealing air bag (41), the lock body comprises a locking rod (32) and a transmission mechanism for controlling and driving the locking rod (32), the locking rod (32) is slidably connected to the inner frame (1), the window frame (2) is provided with a locking groove (22) matched with the locking rod (32), when the window is in a locked state, the locking rod (32) is embedded in the locking groove (22), the window frame (2) is slidably provided with an extrusion block (23) for extruding the locking rod (32), the sliding direction of the extrusion block (23) is perpendicular to the length direction of the locking groove (22), the window frame (2) is rotationally connected with a threaded rod (24) for driving the extrusion block (23) to slide, the locking groove (22) is slidably connected with a contact plate (221), the sliding direction of the contact plate (221) is parallel to the length direction of the locking groove (22), the side of the contact plate (221) away from the locking rod (32) is fixedly connected with a second rack (222), the window frame (2) is rotationally connected with a transmission rod (25) perpendicular to the second rack (222), the transmission rod (25) is coaxially fixedly connected with a second gear (251) meshing with the second rack (222), the transmission rod (25) is coaxially fixedly connected with a driving pulley (252), the threaded rod (24) is coaxially fixedly connected with a driven pulley (241), the driving pulley (252) and the driven pulley (241) are connected with a belt (253) for transmission, the extrusion block (23) comprises an abutting block (231) for abutting against the locking rod (32) and a connecting block (232) for connecting with the threaded rod (24), the abutting block (231) and the connecting block (232) are connected with an elastic member (233).

2. A multipoint locking window sealing device according to claim 1, wherein: The window frame (2) is provided with a sealing groove (21) matched with the sealing air bag (41), when the wing plate (4) abuts against the window frame (2), the sealing air bag (41) is embedded in the sealing groove (21).

3. A multipoint locking window sealing device according to claim 2, wherein: The sealing groove (21) is provided with a buffer pad (211) made of elastic material, the buffer pad (211) is fixedly expanded in the sealing groove (21), when the sealing air bag (41) is embedded in the sealing groove (21), the sealing air bag (41) abuts against the buffer pad (211).

4. A multipoint locking window sealing device according to claim 1, wherein: The inner frame (1) is provided with an air pressure sensor (13) for detecting the air pressure in the pressure chamber (123).

5. A multipoint locking window sealing device according to claim 4, wherein: The inner frame (1) is provided with a detection control circuit, which includes an induction module (51), a comparison module (52) and a control module (53): The induction module (51) includes an air pressure sensor (13) for measuring the air pressure in the pressure chamber (123) and outputting an induction signal; The comparison module (52) is electrically connected with the induction module (51), and is used for receiving the induction signal of the induction module (51); when the comparison module (52) receives the induction signal, the voltage value corresponding to the induction signal is compared with a preset voltage value; if the voltage value of the induction signal is greater than the preset voltage value, the comparison module (52) outputs a start signal; The control module (53) is electrically connected with the comparison module (52), and is used for receiving the start signal of the comparison module (52); when the control module (53) receives the start signal, a control signal is outputted, and the control signal controls the electromagnetic valve (531) to open.

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