Ventilation and explosion venting device for closed space
By employing a locking design for the cover plate and frame in the ventilation window and an electric push rod control, combined with the design of the explosion relief plate, the problem of traditional ventilation windows being easily opened accidentally is solved, achieving high sealing and safety of the enclosed space, and effectively protecting equipment, especially in the event of an explosion.
Patent Information
- Application Number
- CN202520466617.6
- 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
Traditional ventilation windows are prone to accidental opening due to external wind pressure fluctuations or mechanical vibrations when the flap is closed, affecting the sealing performance and safety of the enclosed space.
The cover plate and frame are locked together by a latch design, which is combined with an electric push rod and an electronic lock to achieve automatic control and stable locking of the cover plate. A pressure relief plate is also installed on the cover plate to release pressure by rupturing under specific pressure.
It improves the sealing effect and stability of the ventilation window when it is closed, prevents accidental opening, enhances the safety and reliability of the enclosed space, and can mitigate equipment damage in the event of an explosion.
Smart Images
Figure CN223975066U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of ventilation devices, and more particularly to a ventilation and explosion relief device for enclosed spaces. Background Technology
[0002] In industrial production and storage, especially in enclosed spaces involving flammable, explosive, or hazardous gases, safe pressure relief and ventilation are crucial. To ensure the safe use of these enclosed spaces, ventilation windows are typically installed to achieve the effect of pressure relief.
[0003] Ventilation windows not only help maintain air circulation in enclosed spaces and reduce the concentration of harmful substances, but also effectively prevent the risk of explosion caused by gas accumulation. Traditional ventilation windows for explosion relief generally use electric or pneumatic actuators to precisely control the opening and closing of their flaps. However, when the flaps are closed, traditional ventilation windows are often at risk of accidental opening or loosening due to external factors such as external wind pressure fluctuations and mechanical vibrations. This not only impairs the sealing performance of the enclosed space, but also poses a potential threat to the safety of the site. Utility Model Content
[0004] To improve the sealing effect and stability of the ventilation window when it is closed, this application provides a ventilation and explosion relief device for enclosed spaces.
[0005] The ventilation and explosion relief device for enclosed spaces provided in this application adopts the following technical solution:
[0006] A ventilation and explosion relief device for enclosed spaces includes a frame for mounting on a target device, an opening provided in the frame, a cover plate hinged to the frame, and a drive assembly provided on the frame for controlling the opening and closing of the cover plate. The cover plate is flipped to control the opening and closing of the opening.
[0007] A latch is provided between the cover plate and the frame. When the cover plate is closed, the cover plate and the frame are reinforced by the latch.
[0008] By adopting the above technical solution, the opening and closing of the opening on the frame is controlled by the flipping of the cover plate, thus realizing the ventilation control of the enclosed space. The locking design between the cover plate and the frame ensures the stability of the cover plate in the closed state, prevents accidental opening, and enhances the reliability of the enclosed space.
[0009] Optionally, the cover plate has a through-hole for installation, and a vent plate is fixedly connected to the cover plate within the installation hole.
[0010] By adopting the above technical solution, the explosion relief plate fixedly connected to the cover plate can rupture under specific pressure, effectively releasing the internal pressure. When the cover plate cannot be opened, the explosion relief plate releases the high-pressure gas generated by the explosion, mitigating the damage to equipment in the enclosed space caused by the explosion, and thus improving the safety of the enclosed space.
[0011] Optionally, the drive assembly includes an electric push rod disposed between the cover plate and the frame, the electric push rod extending and retracting to drive the cover plate to flip.
[0012] By adopting the above technical solution and using an electric actuator as the control component, automated control of the cover opening and closing is achieved, which is simple to operate and improves work efficiency. The telescopic movement of the electric actuator can stably and accurately drive the cover to flip, ensuring the normal operation of the ventilation and explosion relief device.
[0013] Optionally, the latch includes an electronic lock fixedly connected to the frame, and the cover plate is provided with a limiting buckle for cooperating with the electronic lock.
[0014] By adopting the above technical solutions, the combined use of electronic locks and latches makes the operation of the latches more intelligent. The electronic locks can remotely lock and unlock the cover, improving the operational flexibility and security of enclosed spaces.
[0015] Optionally, the frame has a raised ridge around the opening, and a sealing gasket is provided on the raised ridge. When the cover is closed, it presses against the sealing gasket to seal the opening.
[0016] By adopting the above technical solution, the ridges and sealing gasket design on the frame effectively improve the sealing performance of the enclosed space. When the cover is closed, it can tightly press against the sealing gasket to prevent external gas or liquid from entering the enclosed space, ensuring the stability and safety of the internal environment.
[0017] Optionally, a rim is provided on the peripheral wall of the cover plate, the rim bends toward the frame, and when the cover plate is closed, the rim is located outside the protruding ridge.
[0018] By adopting the above technical solution, the edge design on the perimeter wall of the cover plate further enhances the sealing effect of the enclosed space. The edge bends towards the frame, which allows for better fit between the ridge and the sealing gasket when the cover plate is closed, effectively preventing gas or liquid leakage and improving the sealing performance of the enclosed space.
[0019] Optionally, the latch includes a snap fastener movably disposed between the electric push rod and the cover plate, a limiting shaft is provided on the frame for engaging with the snap fastener, and a control component is provided on the cover plate for controlling the movement of the snap fastener.
[0020] By adopting the above technical solution, the design of the latch and the limiting shaft in the locking mechanism achieves a stable lock on the cover plate. Through the coordinated action of the electric push rod and control components, the latch and the limiting shaft can be automatically engaged and unlocked, improving the ease of operation and stability of the enclosed space.
[0021] Optionally, the control component includes a sleeve hinged to the cover plate, an inner rod slidably disposed within the sleeve, a buckle fixedly connected to the inner rod, and the inner rod fixedly connected to the moving part of the electric push rod. The sleeve and the inner rod are connected by an elastic unit. When the cover plate is in a closed state, the electric push rod continues to move and overcomes the elastic effect of the elastic unit, so as to drive the inner rod to slide within the sleeve and drive the buckle to engage with the limiting shaft.
[0022] By employing the above technical solution, the combined use of the sleeve, inner rod, and elastic unit in the control assembly achieves precise control over the movement of the latch. As the electric push rod continues to move, it drives the inner rod to slide, thereby engaging the latch with the limiting shaft, ensuring the stability of the cover plate in the closed state. Simultaneously, the design of the elastic unit provides appropriate restoring force to the latch, improving the operational flexibility of the enclosed space.
[0023] Optionally, the cover plate is further provided with a limiting shaft, and the buckle can be moved to engage with the limiting shaft corresponding to the cover plate.
[0024] By adopting the above technical solution, the design of the latches on the limiting shaft and inner rod further enhances the stability of the cover in the closed state. The cooperation between the latches and the limiting shaft prevents the cover from opening unexpectedly, improving the safety and reliability of the enclosed space.
[0025] Optionally, the buckle is provided with a slot for embedding the limiting shaft, and the buckle is provided with a guide slope for guiding the limiting shaft so that the limiting shaft enters the slot.
[0026] By adopting the above technical solution, the design of the slot and guide ramp on the buckle allows the limiting shaft to easily enter the slot, achieving a quick and stable engagement between the buckle and the limiting shaft. The guide ramp design also reduces friction and resistance during the engagement process, improving the ease of operation and service life of the enclosed space. Simultaneously, the combined use of the slot and guide ramp ensures a tight fit between the buckle and the limiting shaft, preventing gas or liquid leakage and improving the sealing performance of the enclosed space.
[0027] In summary, this application includes at least one of the following beneficial technical effects:
[0028] 1. The control cover flips to control the opening and closing of the opening on the frame, realizing ventilation control of the enclosed space. The locking design between the cover and the frame ensures the stability of the cover in the closed state, prevents accidental opening, and helps to improve the sealing effect and stability of the ventilation window in the closed state.
[0029] 2. The control cover flips to control the opening and closing of the opening on the frame, realizing ventilation control of the enclosed space. The explosion relief plate fixedly connected to the cover can break under specific pressure, effectively releasing the internal pressure. When the cover cannot be opened, the explosion relief plate releases the high-pressure gas generated by the explosion, which can alleviate the damage to the equipment in the enclosed space during the explosion and help improve the safety of the enclosed space.
[0030] 3. A raised ridge is provided around the opening of the frame, and a sealing gasket is provided on the raised ridge. The sealing gasket can press against the cover plate when it is closed. When the cover plate is closed, the outer edge of the cover plate covers the outer side of the raised ridge, which further improves the sealing effect of the cover plate on the opening. Attached Figure Description
[0031] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application.
[0032] Figure 2 This is a schematic diagram of the structure of the driving component used in Embodiment 1 of this application.
[0033] Figure 3 This is a schematic diagram of the overall structure of Embodiment 2 of this application.
[0034] Figure 4 yes Figure 3 An enlarged schematic diagram of part A in the middle.
[0035] Figure 5 This is a schematic diagram of the overall structure of Embodiment 3 of this application.
[0036] Figure 6 yes Figure 5 Enlarged schematic diagram of part B.
[0037] Explanation of reference numerals in the attached drawings: 1. Frame; 11. Opening; 12. Raised ridge; 13. Sealing gasket; 14. Cover plate; 15. Edge; 16. Mounting port; 17. Explosion relief plate; 2. Drive assembly; 21. Electric push rod; 3. Lock; 31. Electronic lock; 32. Limiting buckle; 4. Snap-fit; 41. Slot; 42. Guide slope; 43. Limiting shaft; 5. Control assembly; 51. Sleeve; 52. Inner rod; 53. Elastic unit. Detailed Implementation
[0038] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail. Example 1
[0039] This application discloses a ventilation and explosion relief device for enclosed spaces. For example... Figure 1 and Figure 2 The ventilation and explosion relief device for enclosed spaces includes a frame 1, which is fixed to the outer shell of the enclosed space. An opening 11 is provided inside the frame 1, which connects the inside and outside of the enclosed space for gas exchange with the outside space. On one side of the frame 1, a cover plate 14 is hinged to it by a hinge or other connecting mechanism. The cover plate 14 can be flipped relative to the frame 1 to control the opening and closing state of the opening 11.
[0040] A raised rib 12 is provided around the opening 11 in the frame 1, and a sealing gasket 13 is attached or fixed to the raised rib 12. When the cover plate 14 is closed, the cover plate 14 can press against the sealing gasket 13, thereby sealing the opening 11. This sealing method can effectively prevent external gas or liquid from entering the enclosed space and improve the safety of the enclosed space.
[0041] Meanwhile, this embodiment also provides a rim 15 on the peripheral wall of the cover plate 14, which bends toward the frame 1. When the cover plate 14 is closed, the rim 15 can be located outside the protruding ridge 12, which can play a water-blocking role and help improve the sealing performance.
[0042] A control component 2 is also provided on the frame 1 to drive the cover plate 14 to flip. The control component 2 may include, but is not limited to, a manual knob, a cylinder, a hydraulic cylinder, etc. When the control component 2 is activated, it can drive the cover plate 14 to flip around the hinge, thereby opening or closing the opening 11.
[0043] In this embodiment, the control component 2 includes an electric push rod 21, one end of which is hinged to the frame 1, and the moving part of the electric push rod 21 is hinged to the cover plate 14. When the electric push rod 21 extends or retracts, it can drive the cover plate 14 to flip, thereby controlling the opening and closing state of the opening 11.
[0044] An installation port 16 is also provided on the cover plate 14, which is used to fix the explosion relief plate 17. The explosion relief plate 17 is a plate material that can break under specific pressure. When the internal pressure of the enclosed space exceeds a set value, the explosion relief plate 17 will break, thereby releasing the internal pressure. In the event of an explosion, it can mitigate the damage caused by high-pressure gas to the outer shell of the enclosed space and the internal equipment.
[0045] To ensure the stability of the cover plate 14 in the closed state, this application also provides a latch 3 between the cover plate 14 and the frame 1. When the cover plate 14 is in the closed state, the latch 3 can firmly connect the cover plate 14 and the frame 1 together, improving the sealing effect and structural strength of the cover plate 14 in the closed state.
[0046] Furthermore, this embodiment also optimizes the latch 3. The latch 3 comprises two parts: an electronic lock 31 and a limiting latch 32. The electronic lock 31 is fixedly connected to the frame 1, while the latch 4 is disposed on the cover plate 14. When the cover plate 14 is closed, the limiting latch 32 can cooperate with the electronic lock 31 to lock the cover plate 14. This cooperation method between the electronic lock 31 and the limiting latch 32 is not only easy to operate but also has high security. The design of the latch 3 helps to improve the stability of the cover plate 14 in the closed state, thereby improving the sealing effect of the enclosed space. Example 2
[0047] like Figure 3 and Figure 4 Based on Embodiment 1, Embodiment 2 improves the structure of the latch 3. Specifically, the latch 3 includes a snap fastener 4 movably disposed between the electric push rod 21 and the cover plate 14, and a limiting shaft 43 disposed on the frame 1. When the electric push rod 21 drives the cover plate 14 to flip to the closed state, the snap fastener 4 can cooperate with the limiting shaft 43 to lock the cover plate 14.
[0048] To achieve automatic engagement and unlocking of the latch 4, this embodiment also includes a control component 5 on the cover plate 14. The control component 5 includes a sleeve 51 hinged to the cover plate 14, with an inner rod 52 slidably disposed within the sleeve 51. The sleeve 51 and the inner rod 52 are connected via an elastic unit 53, and the latch 4 is fixedly connected to the inner rod 52. The elastic unit 53 can be a spring, tension spring, or other similar component. The other end of the inner rod 52 is fixedly connected to the moving part of the electric push rod 21, and the moving part of the electric push rod 21 is connected to the cover plate 14 via the inner rod 52 and the sleeve 51. When the electric push rod 21 continues to move, it can drive the inner rod 52 to slide within the sleeve 51, thereby causing the latch 4 to engage or unlock with the limiting shaft 43.
[0049] The buckle 4 is provided with a slot 41 and a guide slope 42. The guide slope 42 facilitates the entry of the limiting shaft 43 into the slot 41, enabling the buckle 4 to be quickly engaged.
[0050] In this embodiment, the elastic unit 53 includes a tension spring connected between the sleeve 51 and the inner rod 52. The tension spring drives the inner rod 52 to remain retracted into the sleeve 51, and the inner rod 52 abuts against the inner top wall of the sleeve 51 near the cover plate 14.
[0051] When the cover plate 14 is open, the moving part of the electric push rod 21 remains extended to support the cover plate 14. In this state, the tension spring drives the inner rod 52 to remain retracted into the sleeve 51.
[0052] When the cover plate 14 is closed, the moving part of the electric push rod 21 retracts, causing the cover plate 14 to flip and gradually close. During this process, the inner rod 52 remains retracted into the sleeve 51 under the elastic force of the tension spring.
[0053] When the cover plate 14 is flipped to be fully closed, the moving part of the electric push rod 21 can be further retracted, driving the inner rod 52 to overcome the elastic force of the tension spring and gradually extend out of the sleeve 51. During the process of the inner rod 52 extending out of the sleeve 51, the buckle 4 on the inner rod 52 gradually moves towards the limiting shaft 43, so that the groove 41 on the buckle 4 gradually engages with the limiting shaft 43, thereby achieving the limiting between the cover plate 14 and the frame 1. Example 3
[0054] like Figure 5 and Figure 6 Based on Embodiment 2, Embodiment 3 improves the structure of the latch 3. This embodiment also provides a limiting shaft 43 on the cover plate 14, and a corresponding latch 4 for engaging the limiting shaft 43 is provided on the inner rod 52. This arrangement further increases the stability of the cover plate 14 in the closed state, preventing the cover plate 14 from accidentally opening due to external factors. The limiting shaft 43 corresponding to the cover plate 14 and the limiting shaft 43 corresponding to the frame 1 can be engaged with the same latch 4, or they can be respectively inserted into different latches 4 on the same inner rod 52. In this embodiment, the limiting shaft 43 corresponding to the cover plate 14 and the limiting shaft 43 corresponding to the frame 1 can be engaged with different latches 4.
[0055] During the retraction of the moving part of the electric push rod 21, it drives the cover plate 14 to flip and close. The moving part of the electric push rod 21 further retracts, driving the inner rod 52 to overcome the elastic force of the tension spring and gradually extend out of the sleeve 51. During the process of the inner rod 52 extending out of the sleeve 51, the buckle 4 on the inner rod 52 engages with the limiting shaft 43 of the frame 1 and the cover plate 14, which helps to improve the connection stability between the frame 1 and the cover plate 14 when the cover plate 14 is closed.
[0056] 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 target device, an opening (11) is arranged in the frame (1), a cover plate (14) is hinged on the frame (1), a driving assembly (2) is arranged on the frame (1) for controlling the opening and closing of the cover plate (14), and the cover plate (14) is turned to control the opening and closing of the opening (11). A lock catch (3) is arranged between the cover plate (14) and the frame (1), and the cover plate (14) is reinforced with the frame (1) through the lock catch (3) in the closed state.
2. A ventilation and explosion venting device for an enclosed space according to claim 1, characterized in that: A mounting hole (16) is arranged through the cover plate (14), and a blast relief plate (17) is fixedly connected in the mounting hole (16).
3. The ventilation and explosion venting device for an enclosed space according to claim 1, characterized in that: The driving assembly (2) comprises an electric push rod (21) arranged between the cover plate (14) and the frame (1), and the electric push rod (21) is used for driving the cover plate (14) to turn.
4. The ventilation and explosion venting device for an enclosed space according to claim 1, characterized in that: The lock catch (3) comprises an electronic lock (31) fixedly connected to the frame (1), and a limiting buckle (32) is arranged on the cover plate (14) and matched with the electronic lock (31).
5. The ventilation and explosion venting device for an enclosed space according to claim 1, characterized in that: The frame (1) is provided with a row of convex edges (12) around the opening (11), the convex edges (12) are provided with sealing gaskets (13), and the sealing gaskets (13) are abutted by the cover plate (14) in the closed state, so that the opening (11) is sealed.
6. A ventilation and explosion venting device for an enclosed space according to claim 5, characterized in that: A row of edges (15) are arranged on the peripheral wall of the cover plate (14), the edges (15) are bent towards the frame (1), and the edges (15) are located outside the convex edges (12) in the closed state of the cover plate (14).
7. The ventilation and explosion venting device for an enclosed space according to claim 3, characterized in that: The lock catch (3) comprises a buckle (4) movably arranged between the electric push rod (21) and the cover plate (14), the frame (1) is provided with a limiting shaft (43) matched with the buckle (4), and the cover plate (14) is provided with a control assembly (5) for controlling the movement of the buckle (4).
8. A ventilation and explosion venting device for an enclosed space according to claim 7, characterized in that: The control assembly (5) comprises a sleeve (51) hinged to the cover plate (14), an inner rod (52) is slidably arranged in the sleeve (51), the buckle (4) is fixedly connected to the inner rod (52), the inner rod (52) is fixedly connected to the moving part of the electric push rod (21), and the sleeve (51) and the inner rod (52) are connected through an elastic unit (53). When the cover plate (14) is turned to the closed state, the electric push rod (21) continues to move and overcomes the elastic action of the elastic unit (53), so that the inner rod (52) can slide in the sleeve (51), and the buckle (4) can be clamped with the limiting shaft (43).
9. A ventilation and explosion venting device for an enclosed space according to claim 8, characterized in that: Another limiting shaft (43) is arranged on the cover plate (14), and the buckle (4) can be clamped on the corresponding limiting shaft (43) of the cover plate (14).
10. A ventilation and explosion venting device for an enclosed space according to any one of claims 8 or 9, characterized in that: The buckle (4) is provided with a clamping groove (41) for embedding the limiting shaft (43), and the buckle (4) is provided with a guide inclined surface (42) for guiding the limiting shaft (43) to enter the clamping groove (41).