A cooling section air grid structure for tempered glass production and application thereof

Abstract

This invention discloses a cooling section air grate structure for tempered glass production and its application, relating to the field of tempered glass production technology. The cooling section air grate structure for tempered glass production includes a fixing component, an exhaust mechanism, and a triggering mechanism. The fixing component includes an air collection chamber, configured as a trapezoidal box structure with an open bottom. The rear end of the air collection chamber is connected to an external fan via a duct. The exhaust mechanism includes a base plate one fixed to the inner wall of the bottom of the air collection chamber. A plurality of air holes one are evenly distributed on the base plate one. A base plate two is slidably disposed on the inner wall of the air collection chamber below the base plate one. A plurality of air holes two are evenly distributed on the base plate two. The air holes one and air holes two are staggered vertically. The triggering mechanism includes a magnetic block one fixed to the base plate one and a magnetic block two fixed to the base plate two. The magnetic blocks one and two are vertically facing each other, with opposite magnetic poles on one side of each other.

Description

Technical Field

[0001] This invention relates to the field of tempered glass production technology, specifically to a cooling section air grid structure for tempered glass production and its application. Background Technology

[0002] During the tempering process, a compressive stress layer is formed on the glass surface through physical or chemical methods, thereby improving its mechanical strength and thermal stability. In the physical tempering process, the glass, heated to near its softening point, is rapidly fed into a cooling section where it is drastically cooled by a high-speed stream of cold air ejected through a fan grille.

[0003] In actual production, glass cracking frequently occurs in the cooling section due to factors such as defects in the raw glass sheet, uneven heating, or excessively rapid cooling. At the moment of shattering, glass fragments fly at high speed under the influence of airflow and impact, easily causing unstable air pressure within the air vents and clogging of the vents, thus affecting normal cooling operation. Therefore, it is necessary for staff to periodically stop the machine to clean the inside of the air vents and the vents, which leads to a reduction in production efficiency.

[0004] Therefore, the present invention provides a cooling section air grid structure for tempered glass production and its application to solve the above problems. Summary of the Invention

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A cooling section air grate structure for tempered glass production includes a fixing component, an exhaust mechanism, and a triggering mechanism. The fixing component includes an air collection chamber configured as a trapezoidal box structure with an open bottom, and the rear end of the air collection chamber is connected to an external fan via a duct. The exhaust mechanism includes a base plate one fixed to the inner wall of the bottom of the air collection chamber, with a plurality of air holes one evenly distributed on the base plate one. A base plate two is slidably disposed on the inner wall of the air collection chamber below the base plate one, with a plurality of air holes two evenly distributed on the base plate two. The air holes one and air holes two are staggered vertically. The triggering mechanism includes a magnetic block one fixed to the base plate one and a magnetic block two fixed to the base plate two. The magnetic blocks one and two are vertically facing each other, with opposite magnetic poles on one side of each other. When an external impact energy strikes the bottom wall of the second base plate, the second base plate moves upward, and the magnetic attraction force F between the first and second magnetic blocks surges, causing the second base plate and the first base plate to stick together, and both the first and second air holes are blocked.

[0007] Furthermore, preferably, the bottom surface shape of magnetic block one is the same as the bottom surface shape of base plate one, and the bottom surface of magnetic block one is coplanar with the bottom surface of base plate one. The top surface shape of magnetic block two is adapted to the bottom surface shape of magnetic block one, and the top surface shape of base plate two is adapted to the bottom surface shape of base plate one, and the top surface of magnetic block two is coplanar with the top surface of base plate two.

[0008] Furthermore, preferably, two magnetic blocks are configured, with the two magnetic blocks one being distributed one-to-one at both ends of the base plate one. Two magnetic blocks are configured, with the two magnetic blocks two being distributed one-to-one at both ends of the base plate two.

[0009] Furthermore, preferably, both large walls of the air collection chamber are composed of a first wall and a second wall, with the second wall integrally connected to the lower part of the first wall and extending into the air collection chamber. The second wall and the first wall are perpendicularly distributed. The second base plate includes an arc-shaped portion and two overlapping portions, which are connected one-to-one to the two straight edges of the arc-shaped portion. When not subjected to impact energy, the bottom surfaces of the two overlapping portions abut against the two second walls.

[0010] Furthermore, as a preferred embodiment, the overlapping portion is provided with an arc-shaped groove, and a rotating shaft is rotatably provided in each of the two arc-shaped grooves, with the rotating shaft making rolling contact with the first wall.

[0011] Furthermore, as a preferred embodiment, in the axial direction of the rotating shaft, the size of the rotating shaft is equal to the sum of the size of the base plate two and the size of the magnet two.

[0012] Furthermore, as a preferred embodiment, the upper part of the air collection chamber is provided with multiple slides, each slide having a connecting hole at its upper end that communicates with the outside, each slide having a damping block at its lower part, and a damping spring being arranged between each connecting hole and each damping block.

[0013] Furthermore, preferably, the shape of the outer wall of the damping block is adapted to the shape of the inner wall of the slide, and a sealing ring is provided on the outer wall of the damping block.

[0014] A specific application of a cooling section air grate structure for tempered glass production includes the following steps:

[0015] S1: When the base plate 2 is impacted by the shattered glass fragments, the base plate 2 moves upward, the magnetic attraction F between the magnetic block 1 and the magnetic block 2 increases sharply and is greater than the cooling air force in the air collection chamber. The increased magnetic attraction F causes the base plate 2 to fit with the base plate 1 with a certain kinetic energy, and the air hole 1 and the air hole 2 are in a non-conductive state.

[0016] S2: When air hole one and air hole two are in a non-conductive state, the cooling air exhaust channel in the air collection chamber is closed, the wind force continues to increase, the damping spring will continue to contract until the damping block adheres to the upper wall of the slide and blocks the connecting hole.

[0017] S3: When the connecting hole is blocked, the cooling air in the air collection chamber cannot be discharged, and the air pressure in the air collection chamber increases further. When the air pressure is greater than the magnetic attraction force F between magnetic block one and magnetic block two, the base plate two will separate from the base plate one under the action of air pressure and move down to the lower limit position.

[0018] Compared with the prior art, the present invention provides a cooling section air grid structure for tempered glass production, which has the following beneficial effects:

[0019] 1. When the tempered glass shatters, the flying shards impact the second base plate. Utilizing the dynamic balance between magnetic attraction and wind pressure, the air outlet is instantly blocked, effectively preventing shards from entering the air collection chamber. Simultaneously, when the second base plate collides and adheres to the first base plate, the vibration generated by the impact dislodges the shards stuck in the second air vent, achieving self-cleaning of the air vents. Since shattered glass cannot enter the air grille and the system automatically cleans up any shards stuck in the air vents, there is no need for regular manual cleaning of the air grille, reducing labor intensity.

[0020] 2. The entire explosion-proof sealing and reset process is completed automatically based on physical principles (magnetic force, wind pressure, gravity). It is a passive action that does not rely on any electronic sensors or active control circuits, which greatly reduces the production cost, maintenance difficulty and electrical fault risk of the equipment.

[0021] 3. By setting up a pressure-sharing mechanism, wind pressure energy is absorbed at the moment of sealing, which slows down the rate of pressure accumulation in the air collection chamber. This ensures that the air outlet can maintain a sealed state for a longer period of time during the dangerous period of glass breakage. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram showing the positional distribution of the exhaust mechanism in its separated state according to the present invention;

[0024] Figure 3 For the present invention Figure 2 Enlarged structural diagram at point A in the middle;

[0025] Figure 4 This is a schematic diagram showing the location distribution of air vent one and air vent two in this invention;

[0026] Figure 5 This is a schematic diagram showing the positional distribution of the exhaust mechanism in its fitted state according to the present invention;

[0027] Figure 6 For the present invention Figure 5 Enlarged structural diagram at point B;

[0028] Figure 7 This is a schematic diagram of a half-section of the air collection chamber of the present invention;

[0029] Figure 8 This is a front view structural diagram of the air collection chamber part of the present invention.

[0030] In the diagram: 11. Air collection chamber; 21. Base plate one; 22. Base plate two; 31. Magnetic block one; 32. Magnetic block two; 23. Air hole one; 24. Air hole two; 111. First wall; 112. Second wall; 25. Rotating shaft; 41. Damping block; 42. Damping spring; 51. Slide rail; 52. Connecting hole; 1. Mounting plate one; 2. Mounting plate two. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims and drawings of this application are intended to cover non-exclusive inclusion.

[0033] The directional terms appearing in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of this application. For example, in the description of this application, the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0034] Furthermore, the terms "first," "second," etc., in the specification and claims of this application or in the aforementioned drawings are used to distinguish different objects rather than to describe a specific order, and may explicitly or implicitly include one or more of the features.

[0035] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, "connection" or "joining" in mechanical structures can refer to a physical connection, such as a fixed connection, for example, a connection fixed by fasteners, such as a connection fixed by screws, bolts, or other fasteners; a physical connection can also be a detachable connection, such as a snap-fit ​​or interlocking connection; a physical connection can also be an integral connection, such as a connection formed by welding, bonding, or integral molding. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0036] Reference Figures 1-8 The present invention provides a technical solution:

[0037] A cooling section air grate structure for tempered glass production includes a fixing component, an exhaust mechanism, and a triggering mechanism. The fixing component includes an air collection chamber 11, configured as a trapezoidal box structure with an open bottom, and the rear end of the air collection chamber 11 is connected to an external fan via a duct. The exhaust mechanism includes a base plate 21 fixed to the inner wall of the bottom of the air collection chamber 11, with a plurality of air holes 23 evenly distributed on the base plate 21. A second base plate 22 is slidably disposed on the inner wall of the air collection chamber 11 below the base plate 21, with a plurality of air holes 24 evenly distributed on the second base plate 22. The air holes 23 and 24 are staggered vertically. The triggering mechanism includes a magnetic block 31 fixed to the base plate 21 and a magnetic block 32 fixed to the base plate 22. The magnetic blocks 31 and 32 are vertically aligned, with opposite magnetic poles on one side of each other.

[0038] When the external fan is working normally, cooling air with a certain pressure is continuously injected into the air collection chamber 11. The air pressure in the air collection chamber 11 overcomes the weight of the base plate 22 and the weak magnetic attraction F, so that the base plate 22 is in the lower limit position in the air collection chamber 11. At this time, the air hole 1 23 and the air hole 24 are connected, and the cooling air passes through the two sets of air holes and blows onto the glass surface for tempering.

[0039] Based on the above scheme, if the tempered glass shatters, the flying shards will impact the bottom wall of base plate 22, causing it to shift upwards. As the distance between magnetic block 31 and magnetic block 32 rapidly decreases, according to the formula F∝1 / r², if the distance r between magnetic block 31 and magnetic block 32 decreases, the magnetic attraction F between them will increase dramatically. When this magnetic attraction F is greater than the sum of the thrust of the airflow in the air collection chamber 11 on base plate 22 and the weight of base plate 22, the magnetic attraction F will cause base plate 22 to adhere to base plate 21. At this time, air vent 23 and air vent 24 are completely misaligned, and the air outlet is blocked.

[0040] As can be seen, when the glass shatters, the kinetic energy of the flying glass fragments first pushes the second base plate 22 upward, and then triggers the attraction between the second magnetic block 32 and the first magnetic block 31, so that the second base plate 22 completely blocks the first air hole 23. Therefore, the glass fragments cannot enter the air collection chamber 11, and the glass fragments at the moment of the glass shattering cannot enter the air grid, so there is no need to clean the inner wall of the air grid regularly.

[0041] It should also be emphasized that as the second base plate 22 moves upward, the magnetic attraction F will increase rapidly. The resultant force of the magnetic attraction F, wind force and gravity on the second base plate 22 is upward and gradually increases. Therefore, when the second base plate 22 contacts the first base plate 21, there will be a certain kinetic energy impact. This impact will shatter the broken glass that is stuck in the second air hole 24 when the glass breaks, achieving the effect of cleaning the air hole. Therefore, there is no need to clean the air hole manually on a regular basis.

[0042] In summary, the combined use of the exhaust mechanism and the triggering mechanism can prevent shards of glass from entering the air grille or getting stuck in the air vents during an explosion. Therefore, there is no need for regular manual cleaning of the air grille, reducing labor intensity.

[0043] In addition, when broken glass impacts the bottom wall of the second base plate 22, the second base plate 22 will move upward. This upward movement can weaken the impact energy of the broken glass on the second base plate 22. That is, the upward movement of the second base plate 22 plays a certain buffering role, avoiding damage to local areas of the second base plate 22 by the broken glass and ensuring the service life of the second base plate 22.

[0044] When the external fan is not in operation, the base plate 22 remains separated from the base plate 21 because the weight of the base plate 22 is greater than the magnetic attraction force F when the base plate 22 is separated from the base plate 21.

[0045] After a brief period of magnetic attraction, the cooling air volume in the air collection chamber 11 will gradually accumulate due to the formation of a closed space inside the air collection chamber 11. When the force generated by the cooling air pressure in the air collection chamber 11 is greater than the magnetic attraction force F between magnetic block 1 31 and magnetic block 2 32, the base plate 22 will be pushed open by the strong wind, overcome the magnetic attraction force F, move downward, and return to the initial position.

[0046] As can be seen, after the glass breaks, the air vents 1 23 and 24 are reconnected, and the base plate 2 22 will return to the lower limit position in the air collection chamber 11. The entire air grid returns to normal cooling operation. In summary, from the beginning to the end of the glass breakage, the base plate 2 22 is always in passive motion, requiring no human intervention or any active power control. This saves production costs while reducing labor.

[0047] Further explanation is needed regarding the movement of base plate 22 during its downward movement; please refer to [link / reference needed]. Figure 6The moment the magnetic attraction F is broken, the pressure difference between the inside and outside of the air collection chamber 11 is extremely large. The second base plate 22 will be subjected to a huge downward acceleration. After the second base plate 22 gains downward velocity, the air vents are connected, causing the air collection chamber 11 to depressurize. However, inertia will carry the second base plate 22 to continue to rush downward. Moreover, the greater the distance between the second base plate 22 and the first base plate 21, the smaller the magnetic attraction F becomes. Therefore, the second base plate 22 is sufficient to overcome the small magnetic attraction F, detach from the first base plate 21, continue to move downward, and return to the lower limit position inside the air collection chamber 11. The motion here can be compared to the motion of the cork after champagne is shaken.

[0048] In some alternative embodiments, the bottom surface shape of magnetic block 31 is the same as that of base plate 21, and the bottom surface of magnetic block 31 is coplanar with the bottom surface of base plate 21. The top surface shape of magnetic block 32 is adapted to the bottom surface shape of magnetic block 31, and the top surface shape of base plate 22 is adapted to the bottom surface shape of base plate 21, and the top surface of magnetic block 32 is coplanar with the top surface of base plate 22.

[0049] Based on the above scheme, magnetic block 31 and magnetic block 32 do not occupy the space between base plate 21 and base plate 22. Base plate 21 and base plate 22 can be completely fitted together without any gaps. This ensures that the air collection chamber 11 will not leak pressure when base plate 21 and base plate 22 are fitted together.

[0050] In some alternative embodiments, two magnetic blocks 31 are configured, with the two magnetic blocks 31 distributed one-to-one at both ends of the base plate 21. Two magnetic blocks 32 are configured, with the two magnetic blocks 32 distributed one-to-one at both ends of the base plate 22.

[0051] The magnetic blocks are distributed at both ends in a one-to-one correspondence to ensure that the resultant force direction of the base plate 22 is always upward during the upward movement or downward during the downward movement, thus preventing the base plate 22 from getting stuck during the movement.

[0052] In some alternative embodiments, both large walls of the air collection chamber 11 are composed of a first wall 111 and a second wall 112. The second wall 112 is integrally connected to the lower part of the first wall 111 and extends into the air collection chamber 11; the second wall 112 and the first wall 111 are perpendicularly distributed. The bottom plate 22 includes an arc-shaped portion and two overlapping portions, which are connected one-to-one to the two straight edges of the arc-shaped portion. When not subjected to impact energy, the bottom surfaces of the two overlapping portions abut against the two second walls 112.

[0053] Based on the above scheme, the two first walls 111 are used to guide the vertical movement of the second base plate 22, while the second wall 112 is used to support the second base plate 22 and limit the lower limit position of the second base plate 22 in the air collection chamber 11.

[0054] In some alternative embodiments, the overlapping portion is provided with an arc-shaped groove, and a rotating shaft 25 is rotatably disposed in both arc-shaped grooves, and the rotating shaft 25 makes rolling contact with the first wall 111.

[0055] During the up-and-down movement of the base plate 22, the rotating shaft 25 will roll relative to the first wall 111 of the air collection chamber 11, which can reduce mutual friction and prevent excessive wear on the inner wall of the air collection chamber 11 during use.

[0056] In some alternative embodiments, the dimension of the rotating shaft 25 is equal to the sum of the dimensions of the base plate 22 and the magnetic block 32 in the axial direction of the rotating shaft 25.

[0057] When the external fan is working normally, the rotating shaft 25 can ensure that the bottom plate 22 and the inner wall of the air collection chamber 11 are completely sealed, thereby ensuring that the airflow in the air collection chamber 11 can only be discharged from the air hole 24, thus avoiding pressure loss.

[0058] In some optional embodiments, the upper part of the air collection chamber 11 is provided with multiple slides 51, each slide 51 is provided with a connecting hole 52 at the upper end to communicate with the outside, each slide 51 is provided with a damping block 41 at the lower part, and a damping spring 42 is provided between each connecting hole 52 and each damping block 41.

[0059] Among them, the elastic force of the damping spring 42 is less than the magnetic attraction force F when the magnetic block 1 31 and the magnetic block 2 32 are in contact.

[0060] Based on the above solution, please refer to Figure 7 After the base plate 1 21 and the base plate 2 22 are attached, a sealed space is formed inside the air collection chamber 11. The accumulation of air volume causes the air pressure to increase continuously. At this time, the increased air pressure acts on the damping block 41, compressing the damping spring 42, causing the damping block 41 to slide upward in the slide rail 51. The contraction of the damping spring 42 absorbs part of the impact energy. Until the damping block 41 is attached to the upper wall of the slide rail 51, the air pressure in the air collection chamber 11 begins to rise rapidly, and then breaks through the base plate 2 22 and moves downward.

[0061] It is evident that the combination of damping block 41 and damping spring 42 can slow down the rapid rise of wind pressure in the air collection chamber 11, thereby increasing the bonding time of base plate 1 21 and base plate 2 22, and slowing down the rate of pressure increase in the air collection chamber 11. This ensures that during the dangerous period of glass shattering, flying glass fragments can never enter the air collection chamber 11.

[0062] As the base plate 22 moves downward, the air pressure inside the air collection chamber 11 decreases, the damping spring 42 releases elastic potential energy, and the damping block 41 moves downward. Thus, the damping block 41 can replenish the air pressure inside the air collection chamber 11. The replenished air pressure is superimposed on the original air pressure in the air collection chamber 11, allowing the base plate 22 to impact the two second walls 112 of the air collection chamber 11 with a certain kinetic energy. The base plate 22 will collide with the second walls 112, thereby shaking away the broken glass stuck in the air hole 24 during the explosion.

[0063] It can be seen that the use of damping block 41 and damping spring 42 can complete the pressure distribution delay during the bonding of base plate 22 and base plate 1 21, and at the same time can provide additional wind pressure to help the broken glass in the wind hole 24 of base plate 22 be shaken off during the process of base plate 22 leaving base plate 1 21.

[0064] In addition, the overall thickness formed when the base plate 1 21 and the base plate 22 are bonded together is greater than the thickness of the base plate 22. When any flying shards of glass impact the base plate 22 during the explosion danger period, the base plate 1 21 can distribute the pressure on the base plate 22, thereby ensuring that the base plate 22 will not be damaged.

[0065] In the above scheme, multiple slides 51 can increase the pressure distribution time when the second base plate 22 and the first base plate 21 are in contact, ensuring that broken glass cannot enter the air collection chamber 11 during the dangerous period of glass breakage.

[0066] In some alternative embodiments, the outer wall shape of the damping block 41 is adapted to the inner wall shape of the slide 51, and a sealing ring is provided on the outer wall of the damping block 41.

[0067] The sealing ring ensures that the damping block 41 remains sealed with the slide rail 51 during movement, preventing pressure leakage.

[0068] Preferably, during the production process, multiple air grates are typically integrated together and connected to the same fan to form a cooling section with the same air pressure. When tempering the glass, multiple cooling sections with different air pressure values ​​are set up to perform gradient cooling of the glass. Furthermore, the front ends of the multiple air collection chambers 11 constituting the air grates are jointly fixed with a mounting plate 1, and the rear ends of the multiple air collection chambers 11 constituting the air grates are jointly fixed with a mounting plate 2. The mounting plate 2 has through holes that connect the multiple air collection chambers 11 to the external fan.

[0069] Specifically, the application of the cooling section air grid structure in tempered glass production includes the following steps: S1: When the base plate 22 is impacted by the shattered glass fragments, the base plate 22 moves upward, and the magnetic attraction F between the magnetic block 31 and the magnetic block 32 increases dramatically and exceeds the cooling air force in the air collection chamber 11. The increased magnetic attraction F causes the base plate 22 to adhere to the base plate 21 with a certain kinetic energy, and the air hole 23 and the air hole 24 are in a non-conductive state. S2: When the air hole 23 and the air hole 24 are in a non-conductive state, the cooling air exhaust channel in the air collection chamber 11 is closed, the air force continues to increase, and the damping spring 42 continues to contract until the damping block 41 adheres to the upper wall of the slide 51, blocking the connecting hole 52. S3: When the connecting hole 52 is blocked, the cooling air in the air collecting chamber 11 cannot be discharged, and the air pressure in the air collecting chamber 11 increases further. When the air pressure is greater than the magnetic attraction force F between the magnetic block 1 31 and the magnetic block 2 32, the base plate 2 22 will separate from the base plate 1 21 and move down to the lower limit position under the action of the air pressure.

[0070] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A cooling section air grate structure for tempered glass production, characterized in that: include: The fixed component includes an air collection chamber (11), which is configured as a trapezoidal box structure with an open bottom, and the rear end of the air collection chamber (11) is connected to an external fan through a duct. The ventilation mechanism includes a base plate 1 (21) fixed on the inner wall of the bottom of the air collection chamber (11), a plurality of air holes 1 (23) are evenly opened on the base plate 1 (21), a base plate 2 (22) is slidably provided on the inner wall of the air collection chamber (11) below the base plate 1 (21), a plurality of air holes 2 (24) are evenly opened on the base plate 2 (22), and the plurality of air holes 1 (23) and the plurality of air holes 2 (24) are staggered in the vertical direction; The triggering mechanism includes a magnetic block 1 (31) fixed on the base plate 1 (21) and a magnetic block 2 (32) fixed on the base plate 2 (22). The magnetic block 1 (31) and the magnetic block 2 (32) are arranged facing each other in the vertical direction. The magnetic block 1 (31) and the magnetic block 2 (32) are close to each other on one side and are opposite magnetic poles. When an external impact energy hits the bottom wall of the second base plate (22), the second base plate (22) moves upward, and the magnetic attraction F between the first magnetic block (31) and the second magnetic block (32) increases sharply, causing the second base plate (22) and the first base plate (21) to stick together, and the first air hole (23) and the second air hole (24) are both blocked.

2. The cooling section air grate structure for tempered glass production according to claim 1, characterized in that: The bottom surface shape of the magnetic block 1 (31) is the same as the bottom surface shape of the base plate 1 (21), and the bottom surface of the magnetic block 1 (31) is coplanar with the bottom surface of the base plate 1 (21). The top surface shape of the second magnetic block (32) is adapted to the bottom surface shape of the first magnetic block (31), the top surface shape of the second base plate (22) is adapted to the bottom surface shape of the first base plate (21), and the top surface of the second magnetic block (32) is coplanar with the top surface of the second base plate (22).

3. The cooling section air grate structure for tempered glass production according to claim 1, characterized in that: Two magnetic blocks (31) are configured, and the two magnetic blocks (31) are distributed at both ends of the base plate (21) in a one-to-one correspondence; Two magnetic blocks (32) are configured, and the two magnetic blocks (32) are distributed at both ends of the base plate (22) in a one-to-one correspondence.

4. The cooling section air grate structure for tempered glass production according to claim 1, characterized in that: The two large walls of the air collection chamber (11) are each composed of a first wall (111) and a second wall (112). The second wall (112) is integrally connected to the lower part of the first wall (111) and extends into the air collection chamber (11). The second wall (112) and the first wall (111) are vertically distributed. The second base plate (22) includes an arc-shaped portion and two overlapping portions, the two overlapping portions being connected one-to-one to the two straight edges of the arc-shaped portion; When not subjected to impact energy, the bottom surfaces of the two overlapping portions abut against the two second walls (112) one by one.

5. The cooling section air grate structure for tempered glass production according to claim 4, characterized in that: The overlapping part is provided with an arc-shaped groove, and a rotating shaft (25) is rotatably arranged in both arc-shaped grooves. The rotating shaft (25) is in rolling contact with the first wall (111).

6. The cooling section air grate structure for tempered glass production according to claim 5, characterized in that: In the axial direction of the rotating shaft (25), the size of the rotating shaft (25) is equal to the sum of the size of the base plate (22) and the size of the magnetic block (32).

7. A cooling section air grate structure for tempered glass production according to any one of claims 1-5, characterized in that: The upper part of the air collection chamber (11) is provided with multiple slides (51), each slide (51) is provided with a connecting hole (52) at the upper end to communicate with the outside, each slide (51) is provided with a damping block (41) at the lower part, and a damping spring (42) is provided between each connecting hole (52) and each damping block (41).

8. The cooling section air grate structure for tempered glass production according to claim 7, characterized in that: The outer wall shape of the damping block (41) is adapted to the inner wall shape of the slide (51), and a sealing ring is provided on the outer wall of the damping block (41).

9. The application of the cooling section air grate structure for tempered glass production according to any one of claims 7-8 includes the following steps: S1: When the second base plate (22) is impacted by the broken glass from the glass plate shattering, the second base plate (22) moves upward, and the magnetic attraction F between the first magnetic block (31) and the second magnetic block (32) increases dramatically and is greater than the cooling air force in the air collection chamber (11). The increased magnetic attraction F causes the second base plate (22) to adhere to the first base plate (21) with a certain kinetic energy, and the first air hole (23) and the second air hole (24) are in a non-conductive state. S2: When the first air hole (23) and the second air hole (24) are in a non-conductive state, the cooling air exhaust channel in the air collection chamber (11) is closed, the wind force continues to increase, the damping spring (42) will continue to contract until the damping block (41) adheres to the upper wall of the slide (51) and blocks the connecting hole (52); S3: When the connecting hole (52) is blocked, the cooling air in the air collecting chamber (11) cannot be discharged, and the air pressure in the air collecting chamber (11) further increases. When the air pressure is greater than the magnetic attraction force F between the first magnetic block (31) and the second magnetic block (32), the second base plate (22) will separate from the first base plate (21) under the action of the air pressure and move down to the lower limit position.

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