A pressure relief explosion-proof wall structure

Abstract

The present invention relates to the technical field of building walls, and discloses a pressure relief explosion-proof wall structure, including an embedded box embedded in the wall, an outer sealing plate is rotatably provided on the left side plate of the embedded box, and a slide plate is slidably provided on the right side plate, an inner sealing plate corresponding to the outer sealing plate is rotatably provided on the slide plate, and a connecting rod is rotatably connected between the outer sealing plate and the inner sealing plate; an extension plate is integrally provided at the end of the slide plate, and a limit plate is elastically slidably inserted on the embedded box. The present invention can achieve a pressure relief effect to reduce the probability of damage to the wall and the effect of personal injury, and can also keep the outer sealing plate and the inner sealing plate in an open state when there is no explosion risk and ventilation is required, so as to achieve indoor ventilation and play the role of a ventilation window, thereby eliminating the setting of the ventilation window in the prior art, reducing the number of reserved installation openings in the wall, and enhancing the strength of the wall.

Description

Technical Field

[0001] The invention relates to the technical field of building walls, and in particular to a pressure relief explosion-proof wall structure. Background Art

[0002] The function of explosion-proof walls is to resist the impact of explosions. They are generally made of materials that are resistant to high temperatures and high pressures. Explosion-proof walls are often used in factories that produce products with explosion risks, or in warehouses that store items with explosion risks. Since an explosion will cause a sharp increase in air pressure inside the building, the large impact force can easily cause damage to the wall and injury to personnel. Therefore, in the prior art, explosion-proof walls with a pressure relief function are often used to reduce the probability of wall damage and injury to personnel.

[0003] For example, the Chinese invention patent with application number CN201810632984.3 and titled “An explosion-proof exterior wall with pressure relief function” discloses “a ventilation pipe located inside the explosion-proof wall a, a pressure relief pipe is arranged inside the ventilation pipe, a cavity for high-pressure air waves to pass through is left between the outer side of the pressure relief pipe and the inner wall of the ventilation pipe, the end of the pressure relief pipe is vertically welded to the baffle, a positioning plate is welded and fixed to the end of the pressure relief pipe opposite to the baffle, the baffle as a whole is a plate-like structure with a pressure relief hole b opened in the middle, and the pressure relief hole b is A pressure relief plate is arranged inside to match the clearance with it, and a collapse bracket is arranged between the pressure relief plate and the positioning plate. When an explosion occurs, the high-pressure air wave generated will first compress the pressure relief plate to move toward the positioning plate. During the movement of the pressure relief plate, the collapse bracket will produce corresponding deformation. The bottom feet on both sides of the collapse bracket will first extend outward under the limiting action of the waist-shaped groove until the pressure relief plate is completely fitted with the positioning plate. Then the high-pressure air wave will further enter the ventilation pipe and the pressure relief pipe through the groove and overflow, thereby achieving the purpose of anti-explosion pressure relief.

[0004] Although the explosion-proof exterior wall with pressure relief function provided by the above invention patent can achieve pressure relief during an explosion, its disadvantage is that since the pressure relief mechanism is set on the wall, in order to ventilate the house when needed, a plurality of ventilation windows are usually set on the wall. Whether it is the setting of the ventilation windows or the setting of the pressure relief mechanism, it is necessary to reserve installation openings on the wall. The simultaneous setting of the ventilation windows and the pressure relief mechanism will inevitably increase the number of reserved installation openings on the wall. The increase in the number of reserved installation openings further destroys the overall solidity of the wall, resulting in an insufficiently strong wall structure. The period when the ventilation windows are open is usually a period without explosion risk, otherwise it is easy to cause harm to people outside the house during an explosion, that is, the ventilation windows and the pressure relief mechanism are basically staggered. Based on this, how to reduce the number of reserved installation openings on the wall on the basis that the house wall has both the ventilation function of the ventilation windows and the pressure relief function of the pressure relief mechanism is a technical problem that needs to be solved urgently. Summary of the invention

[0005] The object of the present invention is to provide a pressure relief explosion-proof wall structure to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: a pressure relief explosion-proof wall structure, comprising an embedded box embedded in the wall, an outer sealing plate is rotatably provided on the left plate of the embedded box, and a slide plate is slidably provided on the right plate, an inner sealing plate corresponding to the outer sealing plate is rotatably provided on the slide plate, and a connecting rod is rotatably connected between the outer sealing plate and the inner sealing plate;

[0007] An extension plate is integrally provided at the end of the slide plate, and a limit plate is elastically slidably inserted on the embedded box. In an initial state, the limit plate abuts against the side edge of the extension plate to limit the slide plate;

[0008] The embedded box is provided with a transmission member for pushing the slide plate so that the slide plate presses the limit plate, and the slide plate is linked with the outer sealing plate through the transmission member;

[0009] When an external force acts on the slide plate, the slide plate is driven toward the inner side of the embedded box to push the transmission member to rotate elastically so as to rotate and open the outer sealing plate. The rotation of the outer sealing plate drives the inner sealing plate to rotate and open through the connecting rod. At the same time, the limit plate is separated from the extension plate and elastically extends to abut against the side of the slide plate to achieve locking of the outer sealing plate and the inner sealing plate.

[0010] In the above-mentioned pressure relief explosion-proof wall structure, the transmission member is rotatably connected to the embedded box through a shaft, and the transmission member includes two arc plates arranged opposite to each other and a horizontal plate that fixes the ends of the two arc plates together. An arc rod that is slidably connected to the horizontal plate is fixedly installed on the embedded box, and a tension spring with one end fixedly connected to the transmission member and the other end fixedly connected to the embedded box is sleeved on the arc rod. Based on the elastic force of the tension spring, the free ends of the two arc plates are driven to elastically push the side of the slide plate.

[0011] In the above-mentioned pressure relief explosion-proof wall structure, the free ends of the two arc plates are rotatably plugged with a rotating shaft, both ends of the rotating shaft extend to the outside of the arc plates and are rotatably installed with rollers, and the rollers abut against the sides of the skateboard so that the rollers are driven to rotate when the skateboard slides.

[0012] In the above-mentioned pressure relief explosion-proof wall structure, a linkage plate corresponding to the two arc plates is fixedly installed on the outer sealing plate, and the linkage plate includes two semi-cylinders arranged relatively to each other. The arc plate slides through between the two semi-cylinders, and when the slide plate slides toward the inside of the embedded box, it pushes the roller to drive the transmission member to rotate around the shaft. Based on the relationship between the arc plate and the semi-cylinders, when the transmission member rotates, the linkage plate pushes the outer sealing plate to rotate and open.

[0013] In the above-mentioned pressure relief explosion-proof wall structure, the connecting rod is located below the rotation center of the outer sealing plate and below the rotation center of the inner sealing plate, and the linkage plate is located above the connecting rod so that when the slide plate pushes the outer sealing plate to rotate and open through the linkage plate, it can drive the connecting rod to pull the inner sealing plate to rotate and open.

[0014] The above-mentioned pressure relief explosion-proof wall structure has an open opening on the right side plate of the embedded box, the slide plate is slidably located in the open opening and blocks the open opening, the top and bottom of the open opening are elastically slidably connected to a limit plate, and the number of the extension plates is two and they are in one-to-one abutment with the two limit plates.

[0015] In the above-mentioned pressure relief explosion-proof wall structure, the ends of the two extension plates are rollingly embedded with multiple balls that abut against the inner wall of the open mouth to reduce the sliding friction of the slide plate. In the initial state, the opposite ends of the two limit plates are elastically abutted against the upper and lower end surfaces of the slide plate in a one-to-one correspondence to enable the slide plate to slide smoothly.

[0016] In the above-mentioned pressure relief explosion-proof wall structure, one end of the connecting rod is rotatably connected to the outer sealing plate through a pin, and the other end is rotatably connected to the inner sealing plate through a pin so that when the limit plate and the extension plate are offset in the vertical direction, the transmission member elastically pops out the slide plate and the slide plate can be disassembled by pulling out the pin.

[0017] In the above-mentioned pressure relief explosion-proof wall structure, the outer side surface of the limiting plate located inside the open opening is a wedge-shaped surface, and the inner side surface is a vertical surface.

[0018] In the above-mentioned pressure relief explosion-proof wall structure, when the slide plate slides to a specific position inside the embedded box, the end of the horizontal plate abuts against the inner side surface of the extension plate to achieve the limitation of the slide plate by the horizontal plate.

[0019] Beneficial effects: In the above technical solution, the present invention provides a pressure relief explosion-proof wall structure. When an explosion occurs, the explosive force pushes the slide plate to slide, and the sliding of the slide plate drives the transmission member to rotate elastically to achieve initial pressure relief. After that, the rotation of the transmission member drives the outer sealing plate and the inner sealing plate to open, thereby achieving the pressure relief effect again, so as to achieve the effect of reducing the probability of wall damage and personal injury;

[0020] At the same time, when there is no explosion risk and ventilation is required, the outer sealing plate and the inner sealing plate can be kept in an open state by pushing the slide plate to slide until the slide plate is limited again by the limit plate, so as to achieve indoor ventilation and play the role of ventilation windows, thereby eliminating the need for the setting of ventilation windows in the prior art, so that ventilation and pressure relief are achieved by the same mechanism, reducing the number of reserved installation openings in the wall, and enhancing the strength of the wall, thereby effectively solving the shortcomings of the prior art;

[0021] Furthermore, since the sliding plate can be limited by the limiting plate again, the outer sealing plate and the inner sealing plate are kept in an open state, so that the pollutants in the house can be continuously released when an explosion occurs in the house, so as to prevent the sliding plate from automatically resetting after the explosion and sealing the wall again, making it difficult for the pollutants in the house to be released;

[0022] Furthermore, in the present application, the inner sealing plate is rotated toward the outside of the house, and the rotation center of the inner sealing plate is located at the top thereof, so that when the inner sealing plate is locked in the open state, the inner sealing plate is tilted from top to bottom toward the outside of the house, and when the explosives generated by the explosion hit the inner sealing plate and rebound, they will rebound downwards instead of horizontally. Direct horizontal rebound is very likely to cause secondary injuries to personnel, so the probability of secondary injuries to personnel caused by explosives can be effectively reduced by rebounding downwards. It can be seen that the way the embedded box is opened in this embodiment also has an unexpected technical effect of reducing the probability of secondary injuries to personnel caused by explosives;

[0023] Furthermore, since the side surface of the limit plate will abut against the outer side surface of the slide plate instead of the outer side surface of the extension plate during the reset stroke of the slide plate, the reset stroke of the slide plate is greatly shortened, and the impact force on the limit plate is greatly reduced, making it less likely for the limit plate to deform, thereby increasing its service life. In addition, the smaller impact force can also prevent the embedded box from loosening from the wall. It can be seen that this embodiment has produced another unexpected beneficial effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0025] Figure 1 A structural schematic diagram of a pressure relief explosion-proof wall structure from a first perspective in an initial state provided by an embodiment of the present invention;

[0026] Figure 2 A schematic structural diagram of a pressure relief explosion-proof wall structure when the outer sealing plate is disassembled according to an embodiment of the present invention;

[0027] Figure 3 The embodiment of the present invention provides Figure 2 A schematic diagram of the enlarged structure of part A;

[0028] Figure 4 A structural schematic diagram of a pressure relief explosion-proof wall structure from a second viewing angle in an initial state provided by an embodiment of the present invention;

[0029] Figure 5A schematic diagram of the disassembled structure of the slide plate and the inner sealing plate provided in an embodiment of the present invention;

[0030] Figure 6 A schematic diagram of the internal structure of the embedded box in the initial state provided by an embodiment of the present invention;

[0031] Figure 7 The embodiment of the present invention provides Figure 6 A schematic diagram of the enlarged structure of part B in FIG.

[0032] Figure 8 A schematic diagram of the structure between the slide plate, the inner sealing plate, the transmission member and the linkage plate when the inner sealing plate seals the slide plate in the initial state provided by an embodiment of the present invention;

[0033] Fig. 9 The embodiment of the present invention provides Figure 8 Schematic diagram of the enlarged structure of part C;

[0034] Fig.10 The embodiment of the present invention provides Figure 8 A schematic diagram of the structure when the middle transmission part is separated from the slide plate;

[0035] Fig.11 The embodiment of the present invention provides Fig.10 Schematic diagram of the enlarged structure of the D part;

[0036] Fig.12 A schematic diagram of the inner cavity structure of the embedded box when the outer sealing plate seals the left side plate of the embedded box in the initial state provided by the embodiment of the present invention;

[0037] Fig.13 A schematic cross-sectional view of a pressure relief explosion-proof wall structure in an initial state provided by an embodiment of the present invention;

[0038] Fig.14 The embodiment of the present invention provides Fig.13 Schematic diagram of the enlarged structure of part E in FIG.

[0039] Fig.15 A schematic structural diagram of an outer sealing plate and an inner sealing plate provided in an embodiment of the present invention in an open state.

[0040] Description of reference numerals:

[0041] 1. Embedded box; 101. External window; 1011. First upper inclined surface; 102. First groove; 103. Open mouth; 104. Sliding groove; 2. External sealing plate; 201. First rotating shaft; 202. Second upper inclined surface; 3. Slide plate; 301. Extension plate; 302. Second groove; 303. Wall groove; 3031. Upper groove; 3032. Lower groove; 304. Internal window; 3041. Third upper inclined surface; 305. Accommodating groove; 4. Internal Closing plate; 401, second rotating shaft; 402, fourth upper inclined surface; 5, ball bearing; 6, connecting rod; 7, linkage plate; 701, semi-cylinder; 8, transmission member; 801, arc plate; 802, horizontal plate; 803, guide hole; 9, arc rod; 10, tension spring; 11, limit plate; 1101, wedge surface; 12, rotating shaft; 13, connecting block; 14, roller; 15, buffer compression spring; 16, insert block; 17, force compression spring; 18, shaft. DETAILED DESCRIPTION

[0042] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0043] like Figure 1-15 As shown, a pressure relief explosion-proof wall structure provided by an embodiment of the present invention comprises an embedded box 1 embedded in the wall, an outer sealing plate 2 is rotatably provided on the left plate of the embedded box 1, a slide plate 3 is slidably provided on the right plate, an inner sealing plate 4 corresponding to the outer sealing plate 2 is rotatably provided on the slide plate 3, and a connecting rod 6 is rotatably connected between the outer sealing plate 2 and the inner sealing plate 4;

[0044] An extension plate 301 is integrally provided at the end of the slide plate 3, and a limit plate 11 is elastically slidably inserted on the embedded box 1. In the initial state, the limit plate 11 abuts against the side edge of the extension plate 301 to limit the slide plate 3;

[0045] The embedded box 1 is provided with a transmission member 8 for pushing the slide plate 3 so that the slide plate 3 presses the limit plate 11, and the slide plate 3 is linked with the outer sealing plate 2 through the transmission member 8;

[0046] When external force acts on the slide plate 3, the slide plate 3 is driven to push the transmission member 8 toward the inner side of the embedded box 1 to rotate elastically so as to rotate and open the outer sealing plate 2. The rotation of the outer sealing plate 2 drives the inner sealing plate 4 to rotate and open through the connecting rod 6. At the same time, the limit plate 11 is separated from the extension plate 301 and elastically extends to abut against the side of the slide plate 3 to achieve locking of the outer sealing plate 2 and the inner sealing plate 4.

[0047] The pressure relief explosion-proof wall structure provided in this embodiment is used to achieve the effect of pressure relief when an explosion occurs in the house, thereby protecting the wall from being destroyed, and can achieve the effect of ventilation windows to achieve ventilation. The words related to direction and position designed in this embodiment are relative to the accompanying drawings, and the "inside" and "outside" involved are relative to the inside and outside of the embedded box 1. Specifically, the embedded box 1 is embedded in a reserved installation opening (not shown in the figure) of the wall, and the embedded box 1 is a rectangular structure with a hollow interior. The left side plate and the right side plate of the embedded box 1 are arranged relatively to each other. When the embedded box 1 is embedded in the wall, the left side plate of the embedded box 1 is located outside the house, and the right side plate is located inside the house. An outer window 101 is provided on the left side plate of the embedded box 1, and a first rotating shaft 201 is fixedly provided on the top of the outer sealing plate 2. A first groove 102 adapted to the first rotating shaft 201 is provided on the left side of the top of the outer window 101, and the first rotating shaft 201 is rotatably arranged in the first groove 102, wherein the bottom of the outer window 101 is a first upper inclined surface 1011, and the bottom of the outer sealing plate 2 is a second upper inclined surface 202. In the initial state, the first upper inclined surface 1011 is in contact with the second upper inclined surface 202, and the front and rear inner walls of the outer window 101 are in contact with the front and rear side surfaces of the outer sealing plate 2 so that the outer sealing plate 2 can seal the left side plate of the embedded box 1. An open opening 103 is provided on the right side plate of the embedded box 1, and the slide plate 3 is slidably arranged in the open opening 103. In the initial state, the slide plate 3 blocks the open opening 103. An inner window 304 is provided on the slide plate 3, and a second groove 302 is provided on the left side of the top of the inner window 304. A second rotating shaft 401 adapted to the second groove 302 is fixedly provided on the top of the inner sealing plate 4, and the second rotating shaft 401 is rotatably arranged in the second groove 302. The bottom of the inner window 304 is a third upper inclined surface 3041, and the bottom of the inner sealing plate 4 is a fourth upper inclined surface 402. In the initial state, the inner window 304 is in contact with the fourth upper inclined surface 402, and the front and rear side surfaces of the inner window 304 are in contact with the front and rear side surfaces of the inner sealing plate 4 so that the inner sealing plate 4 seals the inner window 304. The outer sealing plate 2 corresponds to the inner sealing plate 4 on the left and right, and is connected to the inner sealing plate 4 by a connecting rod 6. When the outer sealing plate 2 rotates, the inner sealing plate 4 can be driven to rotate by the connecting rod 6 so that the outer sealing plate 2 and the inner sealing plate 4 are opened and closed synchronously.

[0048] Among them, the extension plate 301 is located on the inner side of the slide plate 3, and the end of the extension plate 301 extends to the outer side of the slide plate 3. The extension plate 301 is used to abut and cooperate with the limit plate 11 elastically plugged on the embedded box 1 to limit the slide plate 3 and prevent the slide plate 3 from escaping from the open mouth 103. The embedded box 1 is elastically rotatably provided with a transmission member 8 for pushing the slide plate 3. Under the action of the elastic rotation force of the transmission member 8, the slide plate 3 can press the limit plate 11 outward, so that the side of the extension plate 301 fits with the side of the limit plate 11. At this time, the limit plate 11 can play a role in limiting the slide plate 3. Furthermore, the slide plate 3 is linked with the outer sealing plate 2 through the transmission member 8. When the slide plate 3 slides, the outer sealing plate 2 can be driven to rotate through the transmission member 8.

[0049] When the cam 11 is in the open position, the cam 11 is in the open position, and the cam 11 is in the open position, so that ...

[0050] More specifically, when an external force such as an explosion or an external driving force acts on the slide plate 3, the slide plate 3 can slide toward the inside of the embedded box 1, and the sliding force of the slide plate 3 pushes the transmission member 8 to rotate elastically. The elastic rotation force of the transmission member 8 can consume part of the impact force generated during the explosion to achieve initial pressure relief, and then the rotation force of the transmission member 8 pushes the outer sealing plate 2 to rotate and open. At this time, the outer window 101 is open, and the rotation force of the outer sealing plate 2 drives the inner sealing plate 4 to rotate and open through the connecting rod 6. At this time, the inner window 304 is open. At the same time, during this process, the limit plate 11 separates from the extension plate 301 and elastically stretches to abut against the side of the slide plate 3 to achieve locking of the outer sealing plate 2 and the inner sealing plate 4. At this time, the slide plate 3 cannot be reset, and the outer window 101 and the inner window 304 can remain in an open state, so that the ventilation of the room can be continuously achieved, playing the role of a ventilation window. The above structural design produces at least the following three technical effects:

[0051] First, when an explosion occurs, the explosive force pushes the slide plate 3 to slide, and the sliding of the slide plate 3 drives the transmission member 8 to rotate elastically to achieve initial pressure relief, and then the rotation of the transmission member 8 drives the outer sealing plate 2 and the inner sealing plate 4 to open, thereby achieving pressure relief again, so as to reduce the probability of wall damage and personal injury;

[0052] Second, when there is no explosion risk and ventilation is required, the outer sealing plate 2 and the inner sealing plate 4 can be kept in an open state by pushing the sliding plate 3 to slide until the sliding plate 3 is limited again by the limiting plate 11, so as to achieve indoor ventilation and play the role of a ventilation window, thereby eliminating the need for the setting of the ventilation window in the prior art, so that ventilation and pressure relief are achieved by the same mechanism, reducing the number of reserved installation openings in the wall, and enhancing the strength of the wall, thereby effectively solving the shortcomings of the prior art;

[0053] Thirdly, since the slide plate 3 can be limited again by the limit plate 11, the outer sealing plate 2 and the inner sealing plate 4 can be kept in the open state, so that the pollutants in the house can be continuously released when an explosion occurs in the house, thereby preventing the slide plate 3 from automatically resetting after the explosion and sealing the wall again, making it difficult for the pollutants in the house to be released.

[0054] Furthermore, in the present embodiment, the inner sealing plate 4 is rotated toward the outside of the house, and the rotation center of the inner sealing plate 4 is located at the top thereof, so that when the inner sealing plate 4 is locked in the open state, the inner sealing plate 4 is inclined from top to bottom toward the outside of the house. When the explosives produced by the explosion hit the inner sealing plate 4 and rebound, they will rebound downward instead of horizontally. Horizontal rebound can easily cause secondary injuries to personnel, so the probability of secondary injuries to personnel caused by the explosives can be effectively reduced by rebounding downward. It can be seen that the way the embedded box 1 is opened in the present embodiment also has the unexpected technical effect of reducing the probability of secondary injuries to personnel caused by the explosives.

[0055] Moreover, in the present embodiment, since the side surface of the limit plate 11 will abut against the outer side surface of the slide plate 3 instead of the outer side surface of the extension plate 301 during the reset stroke of the slide plate 3, the reset stroke of the slide plate 3 is greatly shortened, and the impact force on the limit plate 11 is greatly reduced, so that the limit plate 11 is not easy to deform, and the service life is improved. The smaller impact force can also make the embedded box 1 less likely to loosen from the wall. It can be seen that the present embodiment has produced another unexpected beneficial effect.

[0056] In this embodiment, the transmission member 8 is rotatably connected to the embedded box 1 through the shaft body 18. The transmission member 8 includes two arc plates 801 arranged opposite to each other and a horizontal plate 802 that fixes the ends of the two arc plates 801. The embedded box 1 is fixedly installed with an arc rod 9 that is slidably plugged with the horizontal plate 802. The arc rod 9 is sleeved with a tension spring 10 that is fixedly connected to the transmission member 8 at one end and fixedly connected to the embedded box 1 at the other end. Based on the elastic force of the tension spring 10, the free ends of the two arc plates 801 are driven to elastically push the side of the slide plate 3, so that the outer side of the slide plate 3 and the outer side of the extension plate 301 can squeeze the inner side of the limit plate 11. Specifically, a guide hole 803 corresponding to the arc rod 9 is opened on the horizontal plate 802. The arc rod 9 is slidably plugged with the guide hole 803. The number of the arc rod 9 and the guide hole 803 is one or more. The arc center of the arc rod 9 falls on the axis line of the shaft body 18.

[0057] In this embodiment, the free ends of the two arc plates 801 are rotatably plugged with a rotating shaft 12, and both ends of the rotating shaft 12 extend to the outside of the arc plates 801 and are rotatably installed with rollers 14. The rollers 14 abut against the sides of the skateboard 3 so that the rollers 14 are driven to rotate when the skateboard 3 slides. The rotation of the rollers 14 can effectively reduce the friction between the transmission member 8 and the skateboard 3 to reduce wear and improve smoothness.

[0058] Among them, the outer sealing plate 2 is fixedly installed with a linkage plate 7 corresponding to the two arc plates 801. The linkage plate 7 includes two semi-cylinders 701 arranged oppositely. The arc surfaces of the two semi-cylinders 701 are arranged oppositely. The arc plate 801 slides through the two semi-cylinders 701. When the slide plate 3 slides toward the inner side of the embedded box 1, it pushes the roller 14 to drive the transmission member 8 to rotate around the shaft 18. Based on the relationship between the arc plate 801 and the semi-cylinder 701, the transmission member 8 is driven to rotate and open through the linkage plate 7 when the outer sealing plate 2 is rotated. Specifically, when the slide plate 3 slides toward the inner side of the embedded box 1, it pushes the roller 14 to rotate while driving the transmission member 8 to rotate around the shaft 18. During the rotation of the transmission member 8, it slides relative to the arc surface of the semi-cylinder 701 while pushing the linkage plate 7 and the outer sealing plate 2 to rotate outward around the first rotating shaft 201 through the semi-cylinder 701, thereby realizing the opening of the outer sealing plate 2.

[0059] In this embodiment, the connecting rod 6 is located below the rotation center of the outer sealing plate 2 and below the rotation center of the inner sealing plate 4, and the linkage plate 7 is located above the connecting rod 6 so that when the slide plate 3 pushes the outer sealing plate 2 to rotate and open through the linkage plate 7, the connecting rod 6 can be driven to pull the inner sealing plate 4 to rotate and open. Specifically, according to the principle that the farther the distance from the rotation center is, the greater the arc of rotation is, the inner sealing plate 4 can be driven to rotate through the connecting rod 6 when the outer sealing plate 2 rotates during the process of the slide plate 3 sliding toward the outer sealing plate 2, thereby realizing the opening of the outer sealing plate 2 and the inner sealing plate 4.

[0060] In this embodiment, an open opening 103 is provided on the right side plate of the embedded box 1, the slide plate 3 is slidably located in the open opening 103 and blocks the open opening 103, the top and bottom of the open opening 103 are elastically slidably connected to a limit plate 11, and the number of the extension plates 301 is two and they are in one-to-one abutment with the two limit plates 11. Specifically, the two extension plates 301 are located one-to-one at the top and bottom of the inner side of the slide plate 3, and a sliding groove 104 for the limit plate 11 to slide into is provided in the embedded box 1, and a force-applying compression spring 17 is installed in the sliding groove 104, one end of the force-applying compression spring 17 is fixedly connected to the inner wall of the sliding groove 104, and the other end is fixedly connected to the limit plate 11, and the elastic force of the force-applying compression spring 17 is used to realize the elastic sliding of the limit plate 11.

[0061] Furthermore, multiple balls 5 are rollingly embedded in the ends of the two extension plates 301 and abut against the inner wall of the open mouth 103 to reduce the sliding friction of the slide plate 3. In the initial state, the opposite ends of the two limit plates 11 elastically abut against the upper and lower end surfaces of the slide plate 3 in a one-to-one correspondence to make the slide plate 3 slide smoothly. Specifically, in order to reduce the sliding friction of the slide plate 3 and thus reduce wear, multiple balls 5 are rollingly embedded in the extension plates 301 in this embodiment. However, it is precisely because the multiple balls 5 abut against the inner wall of the open mouth 103 that the contact surface between the slide plate 3 and the inner wall of the open mouth 103 is reduced, so that the slide plate 3 is prone to tilting during the sliding process. In the present invention, the two limit plates 11 are cleverly used to elastically squeeze the two end surfaces of the slide plate 3 to achieve the function of limiting the slide plate 3, so that the slide plate 3 is not easy to tilt during the sliding process. Moreover, the elastic design of the limit plate 11 has another function of elastically stretching when the limit plate 11 is offset from the slide plate 3, thereby abutting against the outer side surface of the slide plate 3 to achieve secondary limitation of the slide plate 3, preventing the slide plate 3 from resetting, and thereby achieving the purpose of keeping the outer sealing plate 2 and the inner sealing plate 4 in the open state.

[0062] In this embodiment, one end of the connecting rod 6 is rotatably connected to the outer sealing plate 2 through a latch, and the other end is rotatably connected to the inner sealing plate 4 through a latch, so that when the limit plate 11 and the extension plate 301 are offset in the vertical direction, the transmission member 8 elastically ejects the slide plate 3 and realizes the disassembly of the slide plate 3 by pulling out the latch. Specifically, the structural design of the present invention can more easily realize the disassembly of the slide plate 3. In the initial state, the tension spring 10 is in a stretched state. Under the tension of the tension spring 10, the free end of the arc plate 801 has a thrust to push the slide plate 3 outward. When the slide plate 3 is damaged and needs to be disassembled, it is only necessary to push the limit plate 11 toward the inner side of the sliding groove 104 to rotate the slide plate 3 around the latch to a tilted state under the push of the transmission member 8. Then, the latch on the connecting rod 6 is pulled out to disassemble the slide plate 3.

[0063] The outer side surface of the limiting plate 11 located inside the open mouth 103 is a wedge-shaped surface 1101, and the inner side surface is a vertical surface. With the inclined design of the wedge-shaped surface 1101, when installing the slide plate 3, it is only necessary to first insert the latch into the connecting rod 6 to connect the slide plate 3 with the connecting rod 6, and then rotate the slide plate 3 to a vertical state and push the slide plate 3 toward the inside of the embedded box 1. Under the action of the driving force, the side edge of the extension plate 301 of the slide plate 3 abuts against the wedge-shaped surface 1101 and squeezes the limiting plate 11 to slide elastically into the inside of the sliding groove 104 until the extension plate 301 enters the inner side of the limiting plate 11, and the installation of the slide plate 3 is completed.

[0064] In this embodiment, when the slide plate 3 slides to a specific position inside the embedded box 1, the end of the cross plate 802 abuts against the inner side of the extension plate 301 to achieve the limit of the slide plate 3 by the cross plate 802. Specifically, in the process of the slide plate 3 sliding to the inner side of the embedded box 1, the end of the cross plate 802 rotates toward the extension plate 301 until it abuts against the inner side of the extension plate 301. At this time, the slide plate 3 slides to the limit position, and the limit plate 11 is staggered with the slide plate 3. Under the elastic force of the force compression spring 17, the limit plate 11 is elastically extended, and the inner side of the extended limit plate 11 abuts against the outer side of the slide plate 3, so as to achieve the secondary limit of the slide plate 3. It can be seen that in the present invention, the transmission member 8 also plays a role in limiting the slide plate 3, preventing the slide plate 3 from colliding with the arc rod 9 and causing the arc rod 9 to deform in the process of sliding to the inner side of the embedded box 1.

[0065] In this embodiment, the skateboard 3 is provided with wall grooves 303 corresponding to the free ends of the two arc plates 801, and the wall grooves 303 include an upper groove 3031 and a lower groove 3032 which are connected up and down. The upper groove 3031 is used to hold the arc plates 801 to prevent the arc plates 801 from colliding with the skateboard 3 during rotation. The lower groove 3032 is used to provide movement space for the roller 14. The roller 14 is located in the lower groove 3032. Two relatively arranged connecting blocks 13 are rotatably installed on the rotating shaft 12. The arc plate 801 is located between the two connecting blocks 13. A buffer compression spring 15 is fixedly installed at the bottom of each connecting block 13. An insert block 16 is fixedly installed at the bottom of the buffer compression spring 15. A receiving groove 305 corresponding to the insert block 16 is provided at the bottom of the lower groove 3032. The insert block 16 is slidably plugged into the receiving groove 305. When the slide plate 3 slides toward the inside of the embedded box 1 to drive the transmission member 8 to rotate, the connection block 13 compresses the buffer spring 15 to generate deformation, thereby further consuming the impact force generated during the explosion.

[0066] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A pressure relief explosion-proof wall structure, comprising an embedded box (1) embedded in the wall, characterized in that: An outer sealing plate (2) is rotatably provided on the left side plate of the embedded box (1), and a slide plate (3) is slidably provided on the right side plate. An inner sealing plate (4) corresponding to the outer sealing plate (2) is rotatably provided on the slide plate (3). A connecting rod (6) is rotatably connected between the outer sealing plate (2) and the inner sealing plate (4). An extension plate (301) is integrally provided at the end of the slide plate (3); a limit plate (11) is elastically slidably inserted on the embedded box (1); in an initial state, the limit plate (11) abuts against the side of the extension plate (301) to limit the slide plate (3); The embedded box (1) is provided with a transmission member (8) for pushing the slide plate (3) so that the slide plate (3) presses the limit plate (11), and the slide plate (3) is linked to the outer sealing plate (2) through the transmission member (8); When an external force acts on the slide plate (3), the slide plate (3) is driven to push the transmission member (8) toward the inner side of the embedded box (1) to rotate elastically, thereby causing the outer sealing plate (2) to rotate and open. The rotation of the outer sealing plate (2) drives the inner sealing plate (4) to rotate and open through the connecting rod (6). At the same time, the limiting plate (11) separates from the extension plate (301) and elastically stretches to abut against the side of the slide plate (3) to achieve locking of the outer sealing plate (2) and the inner sealing plate (4). The transmission member (8) is rotatably connected to the embedded box (1) via a shaft (18). The transmission member (8) comprises two arc plates (801) arranged opposite to each other and a transverse plate (802) fixedly connecting the ends of the two arc plates (801). An arc rod (9) is fixedly mounted on the embedded box (1) and is slidably connected to the transverse plate (802). A tension spring (10) is sleeved on the arc rod (9), one end of which is fixedly connected to the transmission member (8) and the other end of which is fixedly connected to the embedded box (1). Based on the elastic force of the tension spring (10), the free ends of the two arc plates (801) are driven to elastically push the side of the slide plate (3). The free ends of the two arc plates (801) are both rotatably connected to a rotating shaft (12), both ends of the rotating shaft (12) extend to the outside of the arc plates (801) and are both rotatably mounted with rollers (14), the rollers (14) abut against the side surfaces of the slide plate (3) so that the rollers (14) are driven to rotate when the slide plate (3) slides; A linkage plate (7) corresponding to the two arc plates (801) is fixedly mounted on the outer sealing plate (2). The linkage plate (7) comprises two semi-cylinders (701) arranged opposite to each other. The arc plate (801) slides through between the two semi-cylinders (701). When the slide plate (3) slides toward the inside of the embedded box (1), it pushes the roller (14) to drive the transmission member (8) to rotate around the shaft (18). Based on the relationship between the arc plate (801) and the semi-cylinders (701), when the transmission member (8) rotates, it pushes the outer sealing plate (2) to rotate and open through the linkage plate (7).

2. The pressure relief explosion-proof wall structure according to claim 1, characterized in that: The connecting rod (6) is located below the rotation center of the outer sealing plate (2) and below the rotation center of the inner sealing plate (4), and the linkage plate (7) is located above the connecting rod (6) so that when the slide plate (3) pushes the outer sealing plate (2) to rotate and open through the linkage plate (7), it can drive the connecting rod (6) to pull the inner sealing plate (4) to rotate and open.

3. The pressure relief explosion-proof wall structure according to claim 1, characterized in that: An open opening (103) is provided on the right side plate of the embedded box (1), the slide plate (3) is slidably located in the open opening (103) and blocks the open opening (103), the top and bottom of the open opening (103) are elastically slidably connected to a limit plate (11), and the number of the extension plates (301) is two and they are in one-to-one contact with the two limit plates (11).

4. The pressure relief explosion-proof wall structure according to claim 3, characterized in that: The ends of the two extension plates (301) are both rollingly embedded with a plurality of balls (5) that abut against the inner wall of the open opening (103) to reduce the sliding friction of the slide plate (3). In the initial state, the opposite ends of the two limit plates (11) are elastically abutted against the upper and lower end surfaces of the slide plate (3) in a one-to-one correspondence to enable the slide plate (3) to slide smoothly.

5. The pressure relief explosion-proof wall structure according to claim 1, characterized in that: One end of the connecting rod (6) is rotatably connected to the outer sealing plate (2) via a latch, and the other end is rotatably connected to the inner sealing plate (4) via a latch, so that when the limiting plate (11) and the extension plate (301) are offset in the vertical direction, the transmission member (8) elastically ejects the slide plate (3) and the slide plate (3) is disassembled by pulling out the latch.

6. The pressure relief explosion-proof wall structure according to claim 3, characterized in that: The outer side surface of the limiting plate (11) located inside the open opening (103) is a wedge-shaped surface (1101), and the inner side surface is a vertical surface.

7. The pressure relief explosion-proof wall structure according to claim 1, characterized in that: When the slide plate (3) slides to a specific position inside the embedded box (1), the end of the transverse plate (802) abuts against the inner side surface of the extension plate (301) to achieve the position limiting of the slide plate (3) by the transverse plate (802).

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