Ventilation and explosion venting device for closed space
By using a drive mechanism and a venting plate in the ventilation and explosion relief device in the enclosed space, the explosion risk and pressure relief problem caused by ventilation window failure is solved, achieving effective pressure relief and sealing effect during an explosion and reducing equipment damage.
Patent Information
- Application Number
- CN202520472607.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-18
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2035-03-18
AI Technical Summary
When ventilation windows in an enclosed space malfunction and cannot be opened normally, the risk of explosion increases, and the inability to release pressure in time after an explosion can lead to damage to equipment and exterior walls.
A ventilation and explosion relief device for enclosed spaces was designed, including a frame, a cover plate, a control device, and an explosion relief plate. The drive mechanism moves the slide, which opens or closes the cover plate to ensure sealing. When the cover plate cannot be opened, the explosion relief plate is torn to release pressure.
In the event of an explosion, pressure is released through the explosion relief plate, reducing damage to equipment and exterior walls, improving the stability and sealing effect of the closed cover, and reducing the risk of accidental loosening.
Smart Images
Figure CN223975067U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of explosion venting devices, and more particularly to a ventilation explosion venting device for enclosed spaces. Background Technology
[0002] In industrial production and storage sectors, especially in enclosed workspaces involving flammable, explosive, or potentially hazardous gases, safe depressurization and ventilation are crucial. To ensure safety in these locations, ventilation windows are typically installed to facilitate depressurization and ventilation.
[0003] Ventilation windows not only promote air circulation in enclosed spaces and effectively reduce the concentration of flammable materials, but also effectively prevent the risk of explosion caused by gas accumulation.
[0004] However, under certain circumstances, such as equipment failure, operational errors, or sudden external factors, ventilation windows may fail to open properly, which may prevent the concentration of flammable substances in the enclosed workspace from being reduced in time, potentially leading to an explosion. In the event of an explosion, the gas pressure will expand rapidly, and if the pressure inside the enclosed workspace cannot be released in time, it may cause damage to the outer walls or shell of the enclosed workspace and its internal equipment. Utility Model Content
[0005] In order to depressurize the high-pressure gas generated by an explosion in a closed space when the cover cannot be opened normally, so as to alleviate the problem of damage to the outer wall or shell of the closed work space and its internal equipment due to the explosion, this application provides a ventilation and explosion relief device for closed spaces.
[0006] The ventilation and explosion relief device for enclosed spaces provided in this application adopts the following technical solution:
[0007] A ventilation and explosion relief device for enclosed spaces includes a frame for mounting on the shell of the enclosed space, an opening provided in the frame, a cover plate hinged to the frame, a control device provided on the frame for controlling the opening and closing of the cover plate, the cover plate being flipped to control the opening and closing of the opening, an installation port being provided through the cover plate, and an explosion relief plate being fixedly connected to the cover plate in the installation port.
[0008] By adopting the above technical solution, the opening and closing of the opening is controlled by the flipping of the cover plate. When the cover plate is closed, the working space is sealed. When the gas pressure, temperature, or flammable gas concentration in the sealed working space is too high, or other factors that may lead to an explosion are detected, the sliding block is moved by the drive mechanism, and the cover plate is gradually opened under the linkage of the push rod, achieving the effect of gas exchange and pressure relief. However, if the drive mechanism fails, it will affect the normal opening of the cover plate. By setting an explosion relief plate on the cover plate, if an explosion occurs in the working space when the cover plate cannot be opened normally, the explosion relief plate will be torn apart to relieve pressure and reduce the damage to the internal equipment and the outer wall or shell of the working space caused by the explosion.
[0009] Optionally, the control device includes a slide block slidably disposed on the frame, a push rod disposed between the cover plate and the slide block, the two ends of the push rod being connected to the cover plate and the slide block respectively via connecting seats, a drive mechanism for pushing the slide block to move is disposed on the frame, in the moving state of the slide block, the push rod drives the cover plate to flip, one end of the push rod is hinged to the corresponding connecting seat, the other end of the push rod is movably disposed on the corresponding connecting seat via an elastic telescopic mechanism, and the cover plate and the slide block can achieve a snap-fit engagement;
[0010] When the cover is open, the drive mechanism moves the slide, and the cover flips over through the linkage of the elastic telescopic mechanism and the push rod.
[0011] When the cover is closed, the driving mechanism can overcome the elastic force of the elastic telescopic mechanism and drive the slide to move, so that the cover remains closed while the cover and the slide are engaged.
[0012] By adopting the above technical solution, the opening and closing of the opening is controlled by the flipping of the cover plate. When the cover plate is closed, the working space is sealed. When the gas pressure, temperature, or flammable gas concentration in the sealed working space is too high, or other factors that may cause an explosion are detected, the slide is moved by the drive mechanism, and the cover plate is gradually opened under the linkage rotation of the push rod, so as to achieve the effect of gas exchange and pressure relief.
[0013] When the cover is closed, the drive mechanism overcomes the elastic force of the elastic telescopic mechanism and continues to push the slide to maintain its original direction, so as to achieve mutual engagement between the cover and the slide, further improving the stability of the cover in the closed state, improving the sealing effect of the cover, and reducing the possibility of the cover loosening unexpectedly.
[0014] Optionally, the drive mechanism includes an electric cylinder mounted on the frame, the movable part of which is connected to the slide.
[0015] By adopting the above technical solution, the electric cylinder serves as the driving mechanism, enabling precise movement of the slide and automated opening and closing of the cover, thus improving the convenience and efficiency of operation.
[0016] Optionally, the elastic telescopic mechanism includes a first movable seat hinged to the end of the push rod. The first movable seat is slidably disposed on the corresponding connecting seat. A first elastic element is disposed between the connecting seat and the first movable seat. When the cover is closed, the driving mechanism can overcome the elastic force of the first elastic element and continue to drive the slide to move, so as to realize that the cover and the slide can be engaged.
[0017] By adopting the above technical solution, the first elastic element drives the first moving seat and the corresponding connecting seat to tend to be fixed in relative position. The driving mechanism drives the slide to move. During the process of the cover plate being flipped by the push rod, when the cover plate gradually flips to close, the operator continues to push the slide to overcome the elastic force of the first elastic element, so that the slide slides along the previous moving direction. During this process, the cover plate and the slide get closer to each other and gradually engage, which strengthens the closed cover plate and improves the sealing effect of the cover plate.
[0018] Optionally, the elastic telescopic mechanism includes a second movable seat slidably disposed on the push rod, the second movable seat being hinged to the corresponding connecting seat, and a second elastic element connecting the push rod and the second movable seat. When the cover is closed, the driving mechanism can overcome the elastic force of the second elastic element and continue to drive the slide to move, so as to achieve a locking fit between the cover and the slide.
[0019] By adopting the above technical solution, the first elastic element drives the second movable seat and the push rod to tend to retract and be in a fixed relative position. The drive mechanism drives the slide to move. During the process of the cover plate being flipped by the push rod and the second movable seat, when the cover plate gradually flips to close, the operator continues to push the slide to overcome the elastic force of the second elastic element, so that the second movable seat and the push rod move away from each other and extend. The slide continues to slide along the previous moving direction. During this process, the cover plate and the slide plate approach each other and gradually engage, which strengthens the closed cover plate and improves the sealing effect of the cover plate.
[0020] Optionally, a limiting rod is fixedly connected to the cover plate, and a socket is fixedly connected to the slide block. The socket is provided with a snap-fit groove for inserting the limiting rod, and a guide slope is provided on the socket to guide the limiting rod into the snap-fit groove.
[0021] By adopting the above technical solution, after the cover plate gradually flips to close, the slide overcomes the elastic force of the elastic telescopic mechanism and continues to move, so that the socket on the slide moves toward the limiting rod. The limiting rod gradually inserts into the locking groove, thereby achieving the locking effect on the closed cover plate and improving the sealing effect of the cover plate.
[0022] Optionally, a sleeve is rotatably connected to the limiting rod.
[0023] By adopting the above technical solution, the sleeve is installed on the limit rod, and the sleeve abuts against the guide slope and the groove wall of the locking groove, which transforms sliding friction into rolling friction and reduces mutual wear between the limit rod and the socket during the locking process.
[0024] In summary, this application includes at least one of the following beneficial technical effects:
[0025] 1. An explosion relief plate is installed on the cover. If an explosion occurs in the workspace when the cover cannot be opened normally, the explosion relief plate will be torn to release pressure and reduce the damage to the internal equipment and the outer wall or shell of the workspace caused by the explosion.
[0026] 2. When the cover is closed, the drive mechanism overcomes the elastic force of the elastic telescopic mechanism and continues to push the slide to move in the original direction, so as to realize the mutual locking and engagement between the cover and the slide, further improving the stability of the cover in the closed state, improving the sealing effect of the cover, and reducing the possibility of the cover loosening unexpectedly. Attached Figure Description
[0027] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application.
[0028] Figure 2 This is a structural schematic diagram of Embodiment 1 of this application, illustrating the closed state of the cover plate.
[0029] Figure 3 yes Figure 1 An enlarged schematic diagram of part A in the middle.
[0030] Figure 4 This is a schematic diagram of the structure of the elastic telescopic mechanism used in Embodiment 1 of this application.
[0031] Figure 5 This is a schematic diagram of the overall structure of Embodiment 2 of this application.
[0032] Figure 6 yes Figure 5 Enlarged schematic diagram of part B.
[0033] Figure 7 yes Figure 5 An enlarged schematic diagram of section C.
[0034] Explanation of reference numerals in the attached drawings: 1. Frame; 11. Opening; 12. Cover plate; 2. Control device; 21. Slide; 22. Connecting seat; 23. Push rod; 3. Drive mechanism; 31. Electric cylinder; 4. Elastic telescopic mechanism; 41. Limiting groove; 42. First moving seat; 43. First elastic element; 44. First tension spring; 51. Limiting rod; 52. Sleeve; 53. Socket; 54. Guide slope; 55. Snap-fit groove; 6. Second moving seat; 61. Slide groove; 62. Slider; 63. Second elastic element; 64. Second tension spring; 7. Explosion relief plate. Detailed Implementation
[0035] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail. Example 1
[0036] This application discloses a ventilation and explosion relief device for enclosed spaces. For example... Figure 1 and Figure 2 The ventilation and explosion venting device for enclosed spaces includes a frame 1 for installation on the outer shell or outer wall of the enclosed space. The frame 1 has openings 11 for ventilation and explosion venting. Enclosed spaces can be used in equipment in fields such as new energy, industry, chemicals, and food processing, especially equipment that easily generates dust or flammable gases, such as energy storage containers, electrical control cabinets, and dust collectors.
[0037] A cover plate 12 is hinged to the frame 1, and the cover plate 12 is used to cover the opening 11. A control device 2 is also provided on the frame 1 to control the opening and closing of the cover plate 12, thereby controlling the opening and closing of the opening 11, so as to achieve the effect of sealing or depressurization.
[0038] In other embodiments, an explosion relief plate 7 can be installed on the cover plate 12. Specifically, the cover plate 12 has an installation opening, and the explosion relief plate 7 is fixedly connected to the installation opening of the cover plate 12 and the installation opening is closed. If an explosion occurs in the workspace when the cover plate 12 cannot be opened normally, the explosion relief plate 7 will be broken through to relieve pressure and reduce the damage to the internal equipment and the outer wall or shell of the workspace caused by the explosion.
[0039] like Figure 2 and Figure 3 The control device 2 includes a slide block 21 slidably mounted on the frame 1. The slide block 21 can move along a predetermined trajectory on the frame 1. The direction of movement of the slide block 21 is perpendicular to the rotation axis of the cover plate 12 on the frame 1. A drive mechanism 3 for pushing the slide block 21 is provided on the frame 1. Both the cover plate 12 and the slide block 21 are provided with connecting seats 22, and a push rod 23 is connected between the two connecting seats 22. One end of the push rod 23 is hinged to the corresponding connecting seat 22, and the other end is movably mounted to the corresponding connecting seat 22 through an elastic telescopic mechanism 4.
[0040] In this embodiment, one end of the push rod 23 is hinged to the connecting seat 22 on the cover plate 12, and the other end is movably disposed on the connecting seat 22 on the slide block 21 through the elastic telescopic mechanism 4. The cover plate 12 and the slide block 21 can be engaged or disengaged. When the cover plate 12 is closed, and the cover plate 12 and the slide block 21 are engaged with each other, it can be used to improve the sealing effect of the cover plate 12 on the slide block 21.
[0041] The drive mechanism 3 can be a cylinder, a lead screw and nut drive mechanism 3, or a belt drive mechanism mounted on the frame 1. In this embodiment, the drive mechanism 3 includes an electric cylinder 31 mounted inside the frame 1, and the moving part of the electric cylinder 31 is connected to the slide 21. The extension and retraction of the moving part of the electric cylinder 31 drives the slide 21 to move, thereby driving the push rod 23 to flip, thus controlling the cover plate 12 to flip.
[0042] The elastic telescopic mechanism 4 includes a first movable seat 42 fixedly connected to the end of the push rod 23 and hinged to it. The first movable seat 42 is slidably disposed on a corresponding connecting seat 22. In this embodiment, the first movable seat 42 is slidably disposed on the connecting seat 22 corresponding to the frame 1. The connecting seat 22 is provided with a limiting groove 41 for limiting the movement distance of the first movable seat 42. A first elastic element 43 is provided between the frame 1 and the first movable seat 42. The first elastic element 43 can be an elastic plate, a tension spring, or a spring. In this embodiment, the first elastic element 43 is a first tension spring 44 connected between the first movable seat 42 and the corresponding first movable seat 42. Under the elastic force of the first tension spring 44, the first movable seat 42 abuts against the groove wall at one end of the limiting groove 41.
[0043] When the cover plate 12 is in the open state, the first movable seat 42 abuts against the groove wall at one end of the limiting groove 41 under the elastic force of the first tension spring 44. The electric cylinder 31 pushes the slide 21 to move, causing the push rod 23 to flip. Under the linkage action of the push rod 23, the cover plate 12 is then flipped and tends to close. During this process, under the elastic force of the first tension spring 44, the first movable seat 42 and the corresponding first movable seat 42 remain relatively stationary.
[0044] When the cover plate 12 is flipped to the closed state, the electric cylinder 31 continues to push the slide 21 to move in the original direction. During this process, the cover plate 12 remains closed, the slide 21 moves relative to the first moving seat 42, and the first tension spring 44 undergoes elastic deformation. As the slide 21 moves, the slide 21 and the cover plate 12 are engaged with each other, thereby achieving the locking effect of the closed cover plate 12.
[0045] like Figure 2 and Figure 4A limiting rod 51 is fixedly connected to the cover plate 12, and a sleeve 52 is rotatably fitted onto the limiting rod 51. A socket 53 is fixedly connected to the slide 21, and the socket 53 is provided with a snap-fit groove 55 for the limiting rod 51 to be inserted into. The orientation of the snap-fit groove 55 is parallel to the moving direction of the slide 21. A guide slope 54 is provided on the socket 53 to guide the sleeve 52 so that the sleeve 52 is inserted into the snap-fit groove 55. When the cover plate 12 is flipped to the closed state, the snap-fit groove 55 and the guide slope 54 are facing the sleeve 52. The electric cylinder 31 continues to push the slide 21 to move in the original direction, so that the snap-fit groove 55 and the guide slope 54 move toward the sleeve 52. As the slide block 21 moves, the guide slope 54 guides the sleeve 52 into the snap-fit groove 55. The groove wall of the snap-fit groove 55 limits the sleeve 52, thereby achieving the limiting effect on the cover plate 12, which helps to improve the stability of the cover plate 12 when it is closed.
[0046] The implementation principle of this application's embodiments is as follows:
[0047] When the cover plate 12 is flipped to the closed state, the push rod 23 supports the cover plate 12 to remain open, and the first tension spring 44 remains in the contracted state.
[0048] When it is necessary to close the opening 11, the control device 2 controls the electric push rod 23 to drive the slide 21 to move in the opposite direction on the frame 1. Through the transmission action of the push rod 23 and the elastic telescopic mechanism 4, the cover plate 12 is flipped and closed. During this process, the first moving seat 42 and the corresponding first moving seat 42 remain relatively stationary under the elastic force of the first tension spring 44.
[0049] When the cover plate 12 is flipped to the closed state, the electric cylinder 31 continues to push the slide 21 to move in the original direction. During this process, the slide 21 moves relative to the first moving seat 42, and the first tension spring 44 is stretched and undergoes elastic deformation. As the slide 21 moves, the guide slope 54 and the snap-fit groove 55 gradually move toward the sleeve 52, so that the guide slope 54 guides the sleeve 52 into the snap-fit groove 55. The groove wall of the snap-fit groove 55 limits the sleeve 52, thereby achieving the limiting effect on the cover plate 12, which helps to improve the stability of the cover plate 12 when it is closed. Example 2
[0050] like Figures 5 to 7The difference between this embodiment and Embodiment 1 is that the elastic telescopic mechanism 4 includes a second movable seat 6 disposed on the push rod 23, and the second movable seat 6 is slidably disposed along the axial direction of the push rod 23. Specifically, a slider 62 is fixedly connected to the push rod 23. The slider 62 can be a bolt, pin, or roller, etc. The second movable seat 6 is provided with a groove 61 for the slider 62 to slide. The groove 61 is used to limit the movement distance of the slider 62, thereby limiting the movement distance of the push rod 23 relative to the second movable seat 6. A second elastic element 63 is connected between the push rod 23 and the second movable seat 6. The elastic force of the second elastic element 63 causes the push rod 23 and the second movable seat 6 to tend to a contracted state. The second elastic element 63 can be a tension spring, a spring, or other elastic components. In this embodiment, the second elastic element 63 is a second tension spring 64 fixedly connected between the push rod 23 and the second movable seat 6.
[0051] When the cover plate 12 is in the open state, the push rod 23 and the second movable seat 6 are in the retracted state under the elastic force of the second tension spring 64. The electric cylinder 31 pushes the slide 21 to move, causing the push rod 23 to flip. Under the linkage of the push rod 23 and the second movable seat 6, the cover plate 12 is further flipped and tends to close. When the cover plate 12 is flipped to the closed state, the electric cylinder 31 continues to push the slide 21 to move in the original direction. During this process, the push rod 23 and the second movable seat 6 overcome the elastic force of the second tension spring 64 and extend towards each other. As the push rod 23 and the second movable seat 6 extend towards each other, the slide 21 causes the guide slope 54 and the locking groove 55 to move towards the sleeve 52. The guide slope 54 gradually guides the sleeve 52 into the locking groove 55. The groove wall of the locking groove 55 limits the sleeve 52, thereby achieving the limiting effect on the cover plate 12, which helps to improve the stability of the cover plate 12 when it is closed.
[0052] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A ventilation and explosion venting device for an enclosed space, characterized in that: The application relates to a frame (1) for mounting on a closed space shell, an opening (11) is arranged in the frame (1), a cover plate (12) is hinged on the frame (1), a control device (2) for controlling the opening and closing of the cover plate (12) is arranged on the frame (1), the cover plate (12) is turned to control the opening and closing of the opening (11), a mounting hole is arranged through the cover plate (12), and a blast relief plate (7) is fixedly connected in the mounting hole.
2. A ventilation and explosion venting device for an enclosed space according to claim 1, characterized in that: The control device (2) comprises a sliding seat (21) slidingly arranged on the frame (1), a push rod (23) is arranged between the cover plate (12) and the sliding seat (21), the two ends of the push rod (23) are connected to the cover plate (12) and the sliding seat (21) through connecting seats (22) respectively, a driving mechanism (3) for driving the sliding seat (21) to move is arranged on the frame (1), the cover plate (12) is turned by the push rod (23) under the moving state of the sliding seat (21), one end of the push rod (23) is hinged on the corresponding connecting seat (22), the other end of the push rod (23) is movably arranged on the corresponding connecting seat (22) through an elastic extension mechanism (4), and the cover plate (12) and the sliding seat (21) can be clamped and matched; Under the open state of the cover plate (12), the driving mechanism (3) drives the sliding seat (21) to move, and the cover plate (12) is turned by the linkage of the elastic extension mechanism (4) and the push rod (23); Under the closed state of the cover plate (12), the driving mechanism (3) can overcome the elastic force of the elastic extension mechanism (4), drive the sliding seat (21) to move, and make the cover plate (12) keep the closed state while realizing the clamping and matching of the cover plate (12) and the sliding seat (21).
3. A ventilation and explosion venting device for an enclosed space according to claim 2, characterized in that: The driving mechanism (3) comprises an electric cylinder (31) mounted on the frame (1), and a moving part of the electric cylinder (31) is connected to the sliding seat (21).
4. The ventilation and explosion venting device for an enclosed space according to claim 2, characterized in that: The elastic extension mechanism (4) comprises a first moving seat (42) hinged on the end of the push rod (23), the first moving seat (42) is slidingly arranged on the corresponding connecting seat (22), a first elastic member (43) is arranged between the connecting seat (22) and the first moving seat (42), under the closed state of the cover plate (12), the driving mechanism (3) can overcome the elastic force of the first elastic member (43) and continuously drive the sliding seat (21) to move, so that the cover plate (12) and the sliding seat (21) can be clamped and matched.
5. The ventilation and explosion venting device for an enclosed space according to claim 2, characterized in that: The elastic expansion mechanism (4) comprises a second moving base (6) slidably arranged at the end of the push rod (23), the second moving base (6) is hinged to the corresponding connecting base (22), and the push rod (23) is connected with the second moving base (6) through a second elastic member (63); in the closed state of the cover plate (12), the driving mechanism (3) can overcome the elastic force of the second elastic member (63) and continuously drive the sliding base (21) to move, so that the cover plate (12) and the sliding base (21) can be clamped and matched.
6. The ventilation and explosion venting device for an enclosed space according to claim 2, characterized in that: The cover plate (12) is fixedly connected with a limiting rod (51), the sliding base (21) is fixedly connected with a socket (53), the socket (53) is provided with a clamping groove (55) for inserting the limiting rod (51), and the socket (53) is provided with a guide inclined surface (54), and the guide inclined surface (54) is used for guiding the limiting rod (51) into the clamping groove (55).
7. A ventilation and explosion venting device for an enclosed space according to claim 6, characterized in that: The limiting rod (51) is rotationally connected with a sleeve (52).