A heat-insulating fireproof door and window sealing structure

Abstract

This invention relates to the field of insulated doors and windows, and particularly to a heat-insulating and fire-resistant door and window sealing structure. The structure includes a main frame, with a door hinged inside the main frame. A closure device is provided at the hinge point between the door and the main frame. A rectangular groove is provided on the door, and a rotating shaft is rotatably inserted into the upper and lower inner walls of the rectangular groove. A rotating unit is provided between the rotating shafts, and glass is mounted on the rotating unit to drive the glass to rotate. This invention, through the cooperation of the snap-fit ​​block, sliding plate, push rod, and sealing strip of the external sealing component, seals the gap between the main frame and the door when the door is closed, effectively preventing the leakage of cold or hot air, significantly improving heat insulation performance. Furthermore, considering the wear and tear of long-term use, high-strength materials are used to ensure stable operation.

Description

Technical Field

[0001] This invention relates to the field of insulated doors and windows, and particularly to a heat-insulating and fire-resistant door and window sealing structure. Background Technology

[0002] With the booming development of the construction industry, different buildings have increasingly diverse requirements for the performance of doors and windows. In ordinary building scenarios, such as residential buildings and conventional commercial buildings, cost is a key factor in the design and selection of doors and windows. On the basis of meeting the basic functions of wind and rain protection, lighting and ventilation, as well as fire prevention and heat insulation, controlling costs can improve the cost performance of products and meet the economic expectations of the general public. Therefore, affordable door and window products are more popular.

[0003] However, in special settings, the situation is quite different, and cost is not the primary consideration.

[0004] Fireproof doors and windows of vaults bear a heavy responsibility. They must not only be burglarproof and vandalproof, protecting valuables inside from theft and external damage, but also provide a solid safety barrier for the items in the event of a fire, ensuring their integrity.

[0005] To meet these special needs, the glass of fire-resistant doors and windows in these locations is installed very securely; however, this also presents significant challenges for subsequent maintenance. Conventional disassembly methods and equipment are insufficient for quickly removing the glass from these doors and windows. In practice, maintenance personnel often spend a considerable amount of time studying disassembly solutions and may even need to rely on specialized large equipment, which reduces maintenance efficiency, increases costs, and presents a significant challenge in emergency situations. Once the glass of a fire-resistant door or window breaks suddenly, its fire protection and safety functions fail, and in the event of a fire, the fire will spread rapidly, posing a serious threat to the lives, assets, and information security of people and property within the premises.

[0006] In these special scenarios, fire doors and windows, such as glass, need to be replaced as soon as possible when they are damaged. However, existing technologies are clearly insufficient in dealing with the maintenance of fire doors and windows in special locations. This invention focuses on these problems and strives to develop a solution that can quickly disassemble and install fire doors and windows while ensuring that the sealing performance of the doors and windows meets the standards, thereby improving the maintenance efficiency of fire doors and windows in special locations and ensuring the stable operation of these locations. Summary of the Invention

[0007] To address the aforementioned problems, this invention provides a heat-insulating and fireproof door and window sealing structure, comprising a main frame, a door hinged inside the main frame, and a closure device provided at the hinge joint between the door and the main frame. A rectangular groove is provided on the door, and a rotating shaft is rotatably inserted into the upper and lower inner walls of the rectangular groove. A rotating unit is provided between the rotating shafts, and glass is installed on the rotating unit for driving the glass to rotate.

[0008] The rotating unit includes rectangular frame plates, and two symmetrically distributed rectangular frame plates are located in rectangular grooves. Rectangular blocks are symmetrically arranged at the four corners and the middle of the two rectangular frame plates, and the rectangular block in the middle is connected to the corresponding rotating shaft.

[0009] Preferably, the three corresponding rectangular blocks are symmetrically provided with insertion slots, and glass is inserted between the upper and lower corresponding insertion slots. Furthermore, an L-shaped sealing block is provided on the inner side wall of the rectangular frame plate, with one side of the sealing block in contact with the glass surface.

[0010] Preferably, the door is provided with sliding grooves extending through its outer wall and into the rectangular groove. The sliding grooves are provided with inner sealing components for sealing the gaps between the glass panes. The inner sealing components include strip plates that are slidably disposed in the sliding grooves.

[0011] Preferably, the side of the strip facing the glass is provided with a sealing strip with an "E" shaped cross section, and the three extended sections of the sealing strip contact the outer side and the middle of the two glass panes respectively.

[0012] Preferably, the upper and lower corresponding strip plates are provided with circular grooves, the rotating shaft is located in the circular grooves, and the upper and lower sealing strips are provided with clearance grooves in the middle, and the corresponding sealing strips are divided into two sections by the clearance grooves.

[0013] Preferably, the sliding groove is further provided with an external sealing component for sealing the gap between the door and the main frame. The external sealing component includes a snap-fit ​​groove opened on the inner side wall of the main frame, and there is no snap-fit ​​groove at the hinge of the main frame and the door. The snap-fit ​​groove corresponds to the sliding groove, and a sliding plate is provided in the sliding groove.

[0014] Preferably, a snap-fit ​​block is provided on one side of the sliding plate and located in the corresponding snap-fit ​​groove, and a sealing strip is provided on the outside of the snap-fit ​​block, and a push rod is provided between the sliding plate and the inner wall of the corresponding sliding groove.

[0015] In summary, this application includes at least one of the following beneficial technical effects:

[0016] I. This invention uses the combination of the snap-fit ​​block, sliding plate, push rod and sealing strip of the external sealing component to seal the gap between the main frame and the door when the door is closed, effectively preventing the leakage of cold or hot air, significantly improving the heat preservation performance. In addition, considering the wear and tear of long-term use, high-strength materials are used to ensure its stable working condition.

[0017] Second, the present invention, through the strip plate and sealing strip of the internal sealing component, can not only seal the gap between the glass and improve the overall sealing performance, but also the sealing strip is made of flexible material, which can play a buffering role when the glass is impacted, protecting the glass from damage.

[0018] Fourth, the design of the drive unit and locking components in this invention makes the glass replacement operation more convenient. At the same time, it can prevent the door from being opened accidentally when replacing the glass. In daily use, the door can be fixed, and in emergency situations such as fire, the limit can be easily released to open the door, thus taking into account both safety and practicality. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a schematic diagram of the main structure of the present invention.

[0021] Figure 2 This is a schematic diagram of the structure of the rotating shaft of the present invention.

[0022] Figure 3 This is the present invention. Figure 2 Enlarged view of part of the structure at point A in the middle.

[0023] Figure 4 This is a schematic diagram of the rotating unit of the present invention.

[0024] Figure 5 This is a schematic diagram of the rectangular block and insertion slot of the present invention.

[0025] Figure 6 This is a schematic diagram of the rectangular block structure from another perspective.

[0026] Figure 7 This is a cross-sectional view of the internal sealing component of the present invention.

[0027] Figure 8 This is a cross-sectional view of the internal sealing component of the present invention from another perspective.

[0028] Figure 9 This is a schematic diagram of the main frame and the snap-fit ​​groove of the present invention.

[0029] Figure 10 This is a schematic diagram of the external sealing component of the present invention.

[0030] Figure 11 This is the present invention. Figure 10 Enlarged view of part of the structure at point B.

[0031] Figure 12 This is the present invention. Figure 10 Enlarged view of part of the structure at point C.

[0032] Figure 13 This is a schematic diagram of the air replenishment component of the present invention.

[0033] Figure 14 This is the present invention. Figure 13 Enlarged view of part of the structure at point D.

[0034] Figure 15 This is a schematic diagram of the structure of the driving unit of the present invention.

[0035] Figure 16 This is the present invention. Figure 15 Enlarged view of part of the structure at point E in the middle.

[0036] Figure 17 This is the present invention. Figure 15 Enlarged view of part of the structure at point F.

[0037] Figure 18 This is the present invention. Figure 15 Enlarged view of part of the structure at point G.

[0038] Figure 19 This is a cross-sectional view of the rotating cylinder and the transmission cylinder of the present invention.

[0039] Figure 20 This is a cross-sectional view of the locking component of the present invention.

[0040] In the diagram, 1. Main frame; 10. Door; 11. Rotating shaft; 12. Glass; 2. Rotating unit; 20. Rectangular frame plate; 21. Rectangular block; 22. Insertion slot; 23. Sealing block; 3. Inner sealing assembly; 30. Sliding groove; 31. Strip plate; 32. Sealing strip; 33. Circular groove; 34. Clearance groove; 4. Outer sealing assembly; 40. Snap-fit ​​groove; 41. Sliding plate; 42. Snap-fit ​​block; 43. Push rod; 5. Air supply. Components; 50. Bending groove; 51. One-way valve; 6. Drive unit; 60. Drive rack; 61. Drive shaft; 62. Drive gear; 63. Rotating cylinder; 64. Drive cylinder; 65. Worm gear; 66. Worm; 67. Construction groove; 68. Extension shaft; 69. Drive belt; 610. Drive groove; 611. Screw; 612. Drive key; 613. Hexagonal groove; 7. Locking assembly; 70. Fixing rod; 71. Handle. Detailed Implementation

[0041] The following combination Figures 1 to 20 The embodiments of the present invention will be described in detail below.

[0042] This application discloses a heat-insulating and fireproof door and window sealing structure. This application mainly achieves indoor heat insulation and fireproofing through the door and window sealing structure. It can improve the heat insulation and fireproofing capabilities of the glass by installing double-layer fireproof glass and sealing the double-layer glass with the sealing structure, and then injecting inert gas between the glass panes. Especially when the glass needs to be replaced, the glass can be directly rotated on the door frame, so that one end of the glass directly faces the operator. The operator can move the glass out of the mounting groove without forcibly disassembling it and then replace it with new glass. During the glass replacement process, the door will automatically lock on the door frame and cannot be pushed, preventing the operator from forgetting to lock the door and causing accidental opening and safety hazards during glass replacement.

[0043] Example 1: Refer to Figure 1 , Figure 2 and Figure 3 As shown, the structure includes a main frame 1, a door 10, a pivot 11, a rotating unit 2, and glass 12. The door 10 is hinged inside the main frame 1, and a closing device (not shown, known technology) is provided at the hinge point between the door 10 and the main frame 1. The door 10 can be opened within the main frame 1. When the door 10 is no longer under force, the closing device drives the door 10 to close. A rectangular groove is provided on the door 10, and pivots 11 are rotatably inserted into the upper and lower inner walls of the rectangular groove. A rotating unit 2 is provided between the pivots 11, meaning that the rotating unit 2 can rotate within the rectangular groove via the pivots 11. Glass 12 is mounted on the rotating unit 2 and used to drive the glass 12 to rotate. The glass 12 is made of fire-resistant material and has the characteristic of resisting flame exposure without cracking in a fire. Furthermore, both the main frame 1 and the door 10 are made of fire-resistant materials, such as aluminum alloy, to enhance the overall fire resistance of the structure.

[0044] Reference Figure 4 , Figure 5 and Figure 6 As shown, the rotating unit 2 is used to drive the glass 12 to rotate. Specifically, the rotating unit 2 includes a rectangular frame plate 20, a rectangular block 21, an insertion slot 22, and a sealing block 23. Two symmetrically distributed rectangular frame plates 20 are located in the rectangular slot. Rectangular blocks 21 are symmetrically arranged at the four corners and the middle of the two rectangular frame plates 20. The rectangular block 21 in the middle is connected to the corresponding rotating shaft 11. That is, the two rectangular frame plates 20 are connected to each other through the rectangular blocks 21. The rotating shaft 11 can also limit the rectangular frame plate 20 through the corresponding rectangular blocks 21, so that the rectangular frame plate 20 can move in the rectangular slot through the rotating shaft 11.

[0045] Three corresponding rectangular blocks 21 are symmetrically provided with insertion slots 22. Glass 12 is inserted between the upper and lower corresponding insertion slots 22. The inner side wall of the rectangular frame plate 20 is also provided with an L-shaped sealing block 23. One side of the sealing block 23 is in contact with the surface of the glass 12. The glass 12 can be inserted into the rectangular blocks 21 through the upper and lower corresponding insertion slots 22. There are a total of two sets of upper and lower corresponding insertion slots 22, which means that two pieces of glass 12 can be inserted, further increasing the fire resistance. The sealing block 23 is used to seal the gap between the glass 12 and the rectangular frame plate 20 to prevent foreign objects from entering the two pieces of glass 12 from the corners of the rectangular frame plate 20 and the sides of the glass 12.

[0046] When installing glass 12, firstly, the rectangular frame plate 20 is rotated 90 degrees within the rectangular groove by external force through the limiting of the pivot 11, so that the insertion slot 22 corresponds to the installer. Then, glass 12 is inserted into the insertion slot 22 on one side of the rectangular block 21 to complete the installation of glass 12. After both glass 12 are installed, the rectangular frame plate 20 is rotated back to the initial position by external force again.

[0047] It should be noted that the insertion slots 22 on the two vertically corresponding rectangular blocks 21 on one side extend through the outer walls on both sides, while the two rectangular blocks 21 on the other side have insertion slots 22 on one side and are blocked on the other side. This ensures that after the glass 12 enters the rectangular block 21 through the insertion slot 22 on one side, its side will contact the inner wall of the insertion slot 22 on the rectangular block 21 on the other side. This prevents the glass 12 from being inserted too deeply, extending too far from the slot on the other side, or falling out, which would damage the glass 12.

[0048] Continue to refer to Figure 3 , Figure 7 and Figure 8 As shown, a sliding groove 30 is provided around the door 10, extending to its outer wall and the rectangular groove. An inner sealing component 3 is provided in the sliding groove 30 to seal the gap between the glass 12. Specifically, the inner sealing component 3 includes the sliding groove 30, a strip plate 31, a sealing strip 32, a circular groove 33, and a clearance groove 34. The strip plate 31 is slidably disposed inside the sliding groove 30. A sealing strip 32 with an "E" shaped cross section is provided on the side of the strip plate 31 facing the glass 12. That is, when the strip plate 31 is driven by an external force, it can drive the corresponding sealing strip 32 to move towards the two glass 12. Finally, the three extensions of the sealing strip 32 will contact the opposite and opposite sides of the two glass 12 and seal the gap between the two glass 12. Since the sealing strip 32 is made of flexible material, it can also play a certain buffering role after the glass 12 is impacted.

[0049] The upper and lower corresponding strip plates 31 are provided with circular grooves 33, the rotating shaft 11 is located in the circular grooves 33, and the upper and lower sealing strips 32 are provided with clearance grooves 34 in the middle, and the corresponding sealing strips 32 are divided into two sections by the clearance grooves 34, such as Figure 3 As shown, the main frame 1 has a strip-shaped section extending into the corresponding sliding groove 30 at both the upper and lower ends, and the rotating shaft 11 is rotatably inserted into the strip-shaped section. The upper rotating shaft 11 is located in the circular groove 33. The circular groove 33 is used to avoid the rotating shaft 11 when the strip plate 31 moves, so as to prevent the strip plate 31 from colliding with the rotating shaft 11.

[0050] Since the rectangular frame plate 20 has a rectangular block 21, a rotating shaft 11, and an extension of the main frame 1 in the sliding groove 30, the clearance groove 34 is used to avoid them. This allows the sealing strip 32 to be inserted between the glass 12, and its outer side can contact the corresponding rectangular block 21. It works with the rectangular block 21 to seal the gap between the glass 12. The two extensions of the sealing strip 32 cover the outer surface of the glass 12. The sealing effect of the glass 12 is further improved by the sealing block 23.

[0051] If glass 12 needs to be replaced, the strip plate 31 is moved to the initial position by external force so that the sealing strip 32 is no longer inserted between the glass 12. That is, at this time the rectangular frame plate 20 is no longer limited by the sealing strip 32. Then, the rectangular frame plate 20 can be rotated to remove the glass 12 from the corresponding insertion slot 22.

[0052] Reference Figure 9 , Figure 10 , Figure 11 and Figure 12 As shown, the sliding groove 30 is also provided with an external sealing component 4 for sealing the gap between the door 10 and the main frame 1; specifically, the external sealing component 4 includes a snap-fit ​​groove 40, a sliding plate 41, a snap-fit ​​block 42 and a push rod 43. The snap-fit ​​groove 40 is opened on the inner side wall of the main frame 1, and there is no snap-fit ​​groove 40 at the hinge of the main frame 1 and the door 10. The snap-fit ​​groove 40 corresponds to the sliding groove 30, and the sliding plate 41 is provided in the sliding groove 30.

[0053] That is, the sliding plate 41 can reciprocate within the corresponding sliding groove 30.

[0054] A snap-fit ​​block 42 is provided on one side of the sliding plate 41, located in the corresponding snap-fit ​​groove 40, and a sealing strip (not shown in the figure) is provided on the outside of the snap-fit ​​block 42. A push rod 43 is provided between the sliding plate 41 and the inner wall of the corresponding sliding groove 30. In the initial state, the push rod 43 drives the snap-fit ​​block 42 to press against the corresponding snap-fit ​​groove 40 through the sliding plate 41, and seals the gap between the main frame 1 and the door 10 through the sealing strip, thereby improving the heat preservation performance and preventing the leakage of cold or hot air. In addition, the design of the push rod 43 and the sliding plate 41 also takes into account the wear problem of long-term use, and adopts high-strength materials and precision manufacturing process to ensure that it can still maintain a good working condition under frequent use. At the same time, the sealing strip is made of special materials that are resistant to high temperature, low temperature and aging, further extending the service life.

[0055] When a person pushes the door 10, the pushing force will cause the locking block 42 to move out of the corresponding locking slot 40, so that the door 10 is no longer limited by the locking block 42 and can be opened. Similarly, when the door 10 is closed, the locking block 42 can also move back into the locking slot 40 under the indirect push of the corresponding push rod 43, and continue to limit the door 10 within the main frame 1.

[0056] Reference Figure 13 and Figure 14 As shown, any rectangular block 21 is equipped with a gas-filling component 5 for filling inert gas between the glass 12. Specifically, the gas-filling component 5 includes a bending groove 50 and a one-way valve 51. The bending groove 50 is opened inside the rectangular block 21, and both sides of the bending groove 50 extend to the space between the glass 12 and the outer wall of the rectangular block 21, respectively. The one-way valve 51 is inserted into one side of the bending groove 50 on the outer wall of the rectangular block 21. The opening direction of the one-way valve 51 is from the outside to the inside. After the glass 12 is installed and the inner sealing component 3 seals the side of the glass 12, an external gas-filling device (a known technology, which will not be described in detail) is connected to the air inlet of the one-way valve 51, and inert gas, such as argon or krypton, is supplied into the bending groove 50 through the one-way valve 51. The purpose of this step is to further enhance the heat insulation, thermal insulation and sound insulation performance of the glass 12.

[0057] Specifically, after the inert gas enters the bending groove 50 through the one-way valve 51, it will enter between the glass 12, and the air pressure will drive the glass 12 to move towards the front and back sides, so that the glass 12 is in close contact with the sealing strip 32, improving the airtightness. Since the opening direction of the one-way valve 51 is from the outside to the inside, it ensures that the gas can only enter and cannot easily flow out. The inert gas has low thermal conductivity and good sound insulation performance, which can effectively reduce heat transfer and sound transmission.

[0058] A pressure sensor is also installed on the rectangular block 21 between the glass 12. The pressure sensor will monitor whether the pressure between the glass 12 is sufficient in real time. If the inert gas leaks during use, the pressure sensor is equipped with a display screen to remind the personnel to replenish the gas in time. The operator can also see the current pressure intensity more intuitively through the glass 12 and adjust the amount of gas replenishment.

[0059] Example 2: Refer to Figure 15 , Figure 16 , Figure 17 , Figure 18 and Figure 19 As shown, based on Embodiment 1, in order to drive the rotating frame to flip, a drive unit 6 is provided on the sliding groove 30. Specifically, the drive unit 6 includes a drive rack 60, a transmission shaft 61, a transmission gear 62, a rotating cylinder 63, a transmission cylinder 64, a worm gear 65, a worm 66, a structural groove 67, an extension shaft 68, a transmission belt 69, a drive groove 610, a screw 611, a drive key 612, and a hexagonal groove 613. The drive rack 60 is located on one side of the strip plate 31, and the transmission shaft 61 is rotatably mounted on the inner wall of the sliding groove 30 via a torsion spring. A transmission gear 62 that meshes with the corresponding drive rack 60 is located on the outer side of the transmission shaft 61. In the initial state, the corresponding torsion spring drives the transmission gear 62 through the transmission shaft 61 to move the drive rack 60 and the strip plate 31 toward the glass 12, so that the sealing strip 32 is inserted between the glass 12 to seal it.

[0060] A rotating cylinder 63 and a transmission cylinder 64 are rotatably mounted on the upper and lower inner walls of the sliding groove 30 on one side. A worm wheel 65 is sleeved on the outer side of the rotating shaft 11, and a worm 66 meshing with the worm wheel 65 is sleeved on the outer side of the rotating cylinder 63. When the rotating cylinder 63 is driven by an external force, it will drive the worm 66 to rotate, so that the worm 66 can drive the rotating shaft 11 to rotate through the worm wheel 65, and then drive the rotating unit 2 to rotate.

[0061] The four corners of the door 10 are provided with structural grooves 67, and an extension shaft 68 is rotatably installed in the structural grooves 67. A transmission belt 69 is sleeved between the transmission cylinder 64, the transmission shaft 61, and the extension shaft 68. When the transmission cylinder 64 is driven by an external force, it can drive several transmission shafts 61 to rotate through the transmission belt 69 and the extension shaft 68, so that the transmission shaft 61 can indirectly drive the strip plate 31 to move away from the glass 12, so that the glass 12 is no longer sealed, and the rectangular frame plate 20 is no longer limited by the sealing strip 32. At this time, driving the corresponding rotating shaft 11 to rotate can drive the rotating unit 2 to rotate, so as to disassemble or install the glass 12.

[0062] After installation, first rotate the rectangular frame plate 20 to the initial position, then drive the transmission cylinder 64 to rotate in the opposite direction, so that the corresponding torsion spring can indirectly drive the sealing strip 32 to be inserted between the glass 12, and limit the rectangular frame plate 20 to prevent it from rotating.

[0063] The inner walls of the rotating cylinder 63 and the transmission cylinder 64 are also provided with drive grooves 610, and a screw 611 is provided on one side of the door 10 by means of threaded insertion. One side of the screw 611 passes through the interior of the rotating cylinder 63 and the transmission cylinder 64. A drive key 612 is provided on the outer side of the screw 611, which is located in the corresponding drive groove 610. A hexagonal groove 613 is provided on the side of the screw 611 facing outward from the door 10. That is, a hexagonal rod is inserted into the hexagonal groove 613 to drive the screw 611 to rotate. Furthermore, during the rotation of the screw 611, it will move downwards, so that the drive key 612 on its outer side can drive the transmission cylinder 64 to rotate through the drive groove 610, causing the sealing strip 32 to move and no longer be inserted between the glass 12. Then the drive key 612 will move to the drive key 612 inside the rotating cylinder 63. At this time, the screw 611 can drive the transmission cylinder 64 and the rotating cylinder 63 to rotate synchronously through the drive key 612, so that the rectangular frame plate 20 rotates.

[0064] Although the sealing strip 32 is no longer inserted between the rectangular frame plates 20, it will continue to move until the rectangular frame plate 20 rotates 90 degrees. Then, the hexagonal rod remains stationary, the glass 12 is replaced, and the screw 611 is rotated in the opposite direction by the hexagonal rod, so that the rectangular frame plate 20 rotates to the initial position. When the rectangular frame plate 20 moves to the initial position, the drive key 612 drives the screw 611 to rotate, so that the sealing strip 32 can be inserted into the rectangular frame plate 20 and limited.

[0065] Furthermore, after the sealing strip 32 moves out of the glass 12, the end of the drive rack 60 will correspond to the inner side of the sliding plate 41. That is, when the door is subjected to external force, the sliding plate 41 will contact the end of the drive rack 60 and cannot move, so that the locking block 42 cannot move out of the locking groove 40, thus keeping the door 10 always on the main frame 1 and preventing the door 10 from being accidentally opened when the operator replaces the glass 12.

[0066] Example 3: Refer to Figure 20As shown, based on Embodiment 2, in order to fix the door 10 in the main frame 1 and prevent it from being opened during daily use, a locking component 7 is provided on the door 10. Specifically, the locking component 7 includes a fixing rod 70 and a handle 71. A threaded groove is opened on one side of the door 10 and extends into the corresponding sliding groove 30. The fixing rod 70 is threaded into the threaded groove. One side of the fixing rod 70 corresponds to the inner side of the corresponding sliding plate 41. The handle 71 is sleeved on the side of the fixing rod 70 outside the door 10.

[0067] The handle 71 can move the fixed rod 70 toward the sliding groove 30, so that the fixed rod 70 corresponds to the inner side of the sliding plate 41. When the door 10 is driven by external force, the sliding plate 41 is blocked by the fixed rod 70, so the door 10 cannot be opened. The fixed rod 70 is made of plastic. That is, in the event of a fire, if the door 10 is limited by the fixed rod 70, the fixed rod 70 will melt in the high temperature environment and will no longer limit the door 10, so that the door 10 can be opened directly. Or, in an emergency, people can kick the door 10 directly to break the fixed rod 70 and open the door 10, thus saving the time of releasing the door 10 from the limitation by the handle 71.

[0068] During operation: First, the door 10 is in the closed state. The snap-fit ​​block 42 of the outer sealing component 4 is pressed against the snap-fit ​​groove 40 on the inner side wall of the main frame 1 by the push rod 43. The gap between the main frame 1 and the door 10 is sealed by the sealing strip 32 to prevent cold or hot air from leaking out, while improving the heat preservation performance.

[0069] In the second step, the strip plate 31 of the inner sealing component 3, under the action of the torsion spring and the transmission gear 62, drives the sealing strip 32 to contact the glass 12, sealing the gap between the glass 12, and the sealing strip 32 can play a buffering role when the glass 12 is impacted.

[0070] The third step involves the gas replenishment component 5 injecting inert gas (such as argon or krypton) between the glass 12 via an external gas replenishment device and a one-way valve 51 to enhance the heat insulation, thermal insulation and sound insulation performance of the glass 12. The air pressure sensor monitors the air pressure between the glass 12 in real time and reminds personnel to replenish it when it is insufficient.

[0071] Fourth step: When it is necessary to open the door 10, the person pushes the door 10, and the pushing force drives the locking block 42 to move out of the locking groove 40, and the door 10 is no longer restricted and can be opened; after the door 10 is closed, the locking block 42 returns to the locking groove 40 under the action of the pushing rod 43, and continues to limit the door 10 within the main frame 1.

[0072] Fifth step: If glass 12 needs to be replaced, rotate screw 611 by hexagonal rod. Drive key 612 first drives transmission cylinder 64 to rotate, causing strip plate 31 to move. Sealing strip 32 is no longer inserted between glass 12. At this time, when door 10 is subjected to external force, sliding plate 41 is in contact with the end of drive rack 60 and cannot move. Snap block 42 cannot be moved out of snap groove 40, and door 10 is limited. Then drive key 612 drives rotating cylinder 63 to rotate, causing rotating shaft 11 to rotate, which drives rotating unit 2 to rotate, and glass 12 can be taken out from insertion groove 22.

[0073] Step 6: When installing glass 12, first insert glass 12 into the insertion slot 22 of rectangular block 21, then rotate screw 611 in the opposite direction through hexagonal rod to rotate rectangular frame plate 20 to the initial position, and re-insert sealing strip 32 between glass 12 to limit rectangular frame plate 20 and prevent it from rotating.

[0074] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and not restrictive.

[0075] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A heat-insulating and fireproof door and window sealing structure, comprising a main frame, a door hinged inside the main frame, and a closure device provided at the hinge joint between the door and the main frame, and a rectangular groove provided on the door, characterized in that: The upper and lower inner walls of the rectangular groove are rotatably inserted with rotating shafts, and rotating units are set between the rotating shafts. Glass is installed on the rotating units and used to drive the glass to rotate. The rotating unit includes a rectangular frame plate, and two symmetrically distributed rectangular frame plates are located in a rectangular groove. Rectangular blocks are symmetrically arranged at the four corners and the middle of the two rectangular frame plates, and the rectangular block in the middle is connected to the corresponding rotating shaft. The door is also provided with sliding grooves that extend to its outer wall and into the rectangular groove. The sliding grooves are provided with inner sealing components for sealing the gaps between the glass panes. The inner sealing components include strip plates that are slidably disposed in the sliding grooves. The sliding groove is also provided with an external sealing component for sealing the gap between the door and the main frame. The external sealing component includes a snap-fit ​​groove opened on the inner side wall of the main frame. There is no snap-fit ​​groove at the hinge of the main frame and the door. The snap-fit ​​groove corresponds to the sliding groove. A sliding plate is provided in the sliding groove. A snap-fit ​​block is provided on one side of the sliding plate, located in the corresponding snap-fit ​​groove; The sliding groove is equipped with a drive unit for driving the rotating unit to rotate; specifically, the drive unit includes a drive rack on one side of the strip plate, and a transmission shaft is rotatably mounted on the inner wall of the sliding groove via a torsion spring. A transmission gear that meshes with the corresponding drive rack is mounted on the outer side of the transmission shaft. A rotating cylinder and a transmission cylinder are also rotatably mounted on the upper and lower inner walls of the sliding groove on one side. A worm gear is sleeved on the outer side of the rotating shaft, and a worm that meshes with the worm gear is sleeved on the outer side of the rotating cylinder. The four corners of the door are also provided with structural grooves, and an extension shaft is rotatably installed in the structural groove. A transmission belt is fitted between the transmission cylinder, the transmission shaft and the extension shaft. When the transmission cylinder is driven by an external force, it drives several transmission shafts to rotate through the transmission belt and the extension shaft. The inner walls of the rotating cylinder and the transmission cylinder are also provided with drive grooves, and a screw is provided on one side of the door by means of threaded insertion. One side of the screw passes through the interior of the rotating cylinder and the transmission cylinder. A drive key is provided on the outside of the screw in the corresponding drive groove. A hexagonal groove is provided on the side of the screw facing outwards from the door. When replacing the glass, the sliding plate cannot move because it is in contact with the end of the drive rack, and the locking block cannot be removed from the locking groove.

2. The heat-insulating and fireproof door and window sealing structure according to claim 1, characterized in that: The three corresponding rectangular blocks are symmetrically provided with insertion slots, and glass is inserted between the upper and lower corresponding insertion slots. Furthermore, an L-shaped sealing block is provided on the inner side wall of the rectangular frame plate, with one side of the sealing block in contact with the glass surface.

3. The heat-insulating and fireproof door and window sealing structure according to claim 1, characterized in that: The strip plate has an "E"-shaped sealing strip on the side facing the glass, and the three extended sections of the sealing strip contact the outer side and the middle of the two glass panes respectively.

4. The heat-insulating and fireproof door and window sealing structure according to claim 1, characterized in that: The upper and lower strip plates are provided with circular grooves, the rotating shaft is located in the circular grooves, and the upper and lower sealing strips are provided with clearance grooves in the middle, and the corresponding sealing strips are divided into two sections by the clearance grooves.

5. The heat-insulating and fireproof door and window sealing structure according to claim 1, characterized in that: A sealing strip is provided on the outside of the snap-fit ​​block, and a push rod is provided between the sliding plate and the inner wall of the corresponding sliding groove.

Images