Pendulum type explosion-proof wave electromagnetic shielding valve

Abstract

The utility model provides a dangling type anti-explosion wave electromagnetic shielding valve which comprises a door leaf connected with a door frame in an opening and closing mode, and an outer metal net and an inner metal net are installed on the outer side and the inner side of a ventilation opening of the door leaf respectively. Conductive rubber groove plates are welded to the two sides of the door frame in an electromagnetic sealing mode, and a conductive rubber strip is arranged in each conductive rubber groove plate. And when the door leaf is closed, the door leaf, the conductive rubber and the door frame form electric contact. According to the embodiment, the layout of the double-layer hollow metal net can be formed at the ventilation opening, so that electromagnetic waves are reflected and absorbed for multiple times in the hollow cavity, and the impact of electromagnetic pulses can be effectively resisted. And the double-layer metal net is hollow, so that a certain static pressure cabin function can be achieved, air resistance can be effectively reduced, and the ventilation efficiency is improved. In addition, when the valve is closed, the inner door plate compresses the conductive rubber strip, so that the inner door plate is tightly jointed with the conductive rubber strip to form electric contact with the door frame, and the overall conductive continuity of the valve is ensured.

Description

Technical Field

[0001] This utility model relates to the field of civil defense equipment technology, and in particular to a pendulum-type explosion-proof electromagnetic shielding door. Background Technology

[0002] Blast wave ventilators are protective ventilation devices used in civil defense projects to ensure uninterrupted ventilation within the project in the event of an air raid.

[0003] These blast-proof valves typically have ventilation openings. While these openings solve the ventilation problem, they prevent the valve from effectively shielding electromagnetic waves. Furthermore, any gaps between the door frame and the blast-proof valve when closed will significantly reduce the airtightness of the environment.

[0004] Accordingly, there is a need for an explosion-proof valve that can shield electromagnetic waves while achieving ventilation, and also improve the sealing performance between the door frame and the explosion-proof valve. Utility Model Content

[0005] The summary section of this utility model is intended to briefly introduce the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solution, nor is it intended to limit the scope of the claimed technical solution.

[0006] This utility model provides a pendulum-type explosion-proof electromagnetic shielded door to solve the technical problems mentioned in the background section above.

[0007] This utility model discloses a pendulum-type explosion-proof electromagnetic shielded door, comprising a door leaf that can be opened and closed connected to a door frame, wherein...

[0008] The outer and inner sides of the ventilation opening of the door leaf are respectively equipped with an outer metal mesh and an inner metal mesh;

[0009] The electromagnetic seals on both sides of the door frame are welded with conductive rubber groove plates, and each conductive rubber groove plate is provided with a conductive rubber strip.

[0010] When the door is closed, the door, conductive rubber, and door frame form an electrical contact.

[0011] Optionally, both the conductive rubber groove plate and the inner door panel of the door leaf are galvanized.

[0012] Optionally, the groove of the conductive rubber groove plate is oriented towards the door leaf.

[0013] Optionally, the conductive rubber is a hollow O-ring conductive rubber ring.

[0014] Optionally, in the assembled state, the conductive rubber protrudes from the conductive rubber groove plate.

[0015] Optionally, a sealed rubber plate is connected to the outer side of the two conductive rubber groove plates.

[0016] Optionally, the outer door panel of the door leaf is provided with an outer pressure plate for pressing the outer metal mesh to the outer door panel of the door leaf.

[0017] Optionally, the inner door panel of the door leaf is provided with an inner pressure plate for pressing the inner metal mesh to the inner door panel of the door leaf.

[0018] Optionally, the outer door panel and the inner door panel are provided with a plurality of blind holes, and the outer pressure plate and the inner pressure plate are tightly joined to the outer metal mesh and the inner metal mesh respectively by countersunk screws.

[0019] Optionally, the outer metal mesh and the inner metal mesh are copper mesh or Monel mesh; the mesh count of the outer metal mesh and the inner metal mesh is greater than 80 mesh.

[0020] The above embodiments of this utility model have the following beneficial effects: In some embodiments of this utility model, the suspended, explosion-proof electromagnetic shielding door, by setting an inner and outer metal mesh at the ventilation opening, can form a double-layer hollow metal mesh layout. This allows for multiple reflections and absorption of electromagnetic waves within the hollow cavity, effectively resisting the impact of electromagnetic pulses. Furthermore, the hollow interior of the double-layer metal mesh provides a certain static pressure chamber function, effectively reducing air resistance and improving ventilation efficiency.

[0021] In addition, when the door is closed, the inner door panel compresses the conductive rubber strip, and the conductive rubber strip can also provide an outward reaction force, so that the inner door panel and the conductive rubber strip are tightly joined and form electrical contact with the door frame, ensuring the overall conductivity continuity of the door. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a cross-sectional view of one embodiment of the pendulum-type explosion-proof electromagnetic shielded door of this utility model;

[0024] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1: Door frame; 2: Conductive rubber groove plate; 3: Conductive rubber strip; 4: Sealed rubber plate; 5: Inner door panel; 6: Inner pressure plate; 7: Countersunk screw; 8: Inner metal mesh; 9: Outer door panel; 10: Outer pressure plate; 11: Countersunk screw; 12: Outer metal mesh. Detailed Implementation

[0027] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] Please see Figure 1 and Figure 2 , Figure 1 This is a cross-sectional view of one embodiment of the pendulum-type explosion-proof electromagnetic shielded door of this utility model; Figure 2 for Figure 1 A magnified view of point A in the middle. (See image below.) Figure 1 and Figure 2 As shown, the suspended explosion-proof electromagnetic shielded door includes a door leaf that can be opened and closed connected to the door frame 1. The door leaf includes an outer door panel 9 and an inner door panel 5, and multiple ventilation openings are provided on the door leaf from top to bottom.

[0032] An outer metal mesh 12 and an inner metal mesh 8 are respectively installed on the outer door panel 9 and the inner door panel 5, so that the two sides of the ventilation opening are blocked by the two layers of metal mesh 12 and 8. Specifically, an outer pressure plate 10 is provided on the outside of the outer metal mesh 12 to press the outer metal mesh 12 tightly to the outer door panel 9. A plurality of blind holes are provided on the outer door panel 9, and countersunk screws 11, the number of which matches the number of blind holes, pass through the outer pressure plate 10 and the outer metal mesh 12 and engage with the blind holes, thereby making the outer pressure plate 10, the outer metal mesh 12 and the outer door panel 9 tightly joined together.

[0033] An inner pressure plate 6 is provided on the outside of the inner metal mesh 8 to press the inner metal mesh 8 tightly to the inner door panel 5. Multiple blind holes are provided on the inner door panel 5, and countersunk screws 7, the number of which matches the number of blind holes, pass through the inner pressure plate 6 and the inner metal mesh 8 and engage with the blind holes, so that the inner pressure plate 6, the inner metal mesh 8 and the inner door panel 5 are tightly joined together.

[0034] The blind holes and countersunk screws 7 and 11 facilitate the replacement and maintenance of the inner metal mesh 8 and outer metal mesh 12.

[0035] The outer metal mesh 12 and inner metal mesh 8 can be made of copper or Monel mesh to ensure good shielding and corrosion resistance. The mesh count of the outer metal mesh 12 and inner metal mesh 8 is greater than 80 meshes, effectively preventing dust contamination and creating a safe environment. Those skilled in the art can adjust the material and mesh count of the outer metal mesh 12 and inner metal mesh 8 through repeated experiments.

[0036] By setting up an outer metal mesh 12 and an inner metal mesh 8, a double-layer hollow metal mesh layout can be formed, allowing electromagnetic waves to be reflected and absorbed multiple times within the hollow cavity, effectively resisting the impact of electromagnetic pulses. Compared to using a single-layer metal mesh, this significantly improves the overall shielding performance of the valve. Furthermore, the hollow interior of the double-layer metal mesh provides a certain degree of static pressure chamber function, effectively reducing air resistance and improving ventilation efficiency.

[0037] Continue reading Figure 1 and Figure 2 Conductive rubber groove plates 2 are welded to the electromagnetic seals on both sides of the door frame 1, and a conductive rubber strip 3 is installed in each conductive rubber groove plate 2. When the door is closed, the inner door panel 5, the conductive rubber strip 3, and the door frame 1 can form electrical contact, ensuring the overall conductivity continuity of the door.

[0038] Specifically, both the conductive rubber groove plate 2 and the inner door panel 5 are galvanized. The groove of the conductive rubber groove plate 2 faces the door leaf, and the conductive rubber strip 3 protrudes from the conductive rubber groove plate 2 after installation, facilitating its connection with the inner door panel 5. The conductive rubber strip 3 can be a hollow O-ring conductive rubber ring, ensuring good conductivity while maintaining a certain degree of elasticity to meet the needs of repeated door opening and closing.

[0039] Furthermore, a sealed rubber plate 4 is connected to the outer side of the two conductive rubber groove plates 2, and the sealed rubber plate 4 can also be electromagnetically sealed to the door frame 1.

[0040] By incorporating a conductive rubber strip 3, the inner door panel 5 compresses the conductive rubber strip 3 when the door is closed. The conductive rubber strip 3 also provides an outward reaction force, ensuring a tight fit between the inner door panel 5 and the conductive rubber strip 3, forming electrical contact with the door frame 1. Compared to using only electromagnetic sealing, this invention's pendulum-type explosion-proof electromagnetic shielded door, by adding a conductive rubber strip 3 and a sealing rubber plate 4 to the electromagnetic sealing, significantly improves the sealing performance between the door and the door frame 1.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A pendulum-type explosion-proof electromagnetic shielded valve, characterized in that, Includes door panels that can be opened and closed to the door frame, wherein, The outer and inner sides of the ventilation opening of the door leaf are respectively equipped with an outer metal mesh and an inner metal mesh; The electromagnetic seals on both sides of the door frame are welded with conductive rubber groove plates, and each conductive rubber groove plate is provided with a conductive rubber strip. When the door is closed, the door, conductive rubber, and door frame form an electrical contact.

2. The suspended swing-type explosion-proof electromagnetic shielded door according to claim 1, characterized in that, Both the conductive rubber groove plate and the inner door panel of the door leaf are galvanized.

3. The suspended swing-type explosion-proof electromagnetic shielded door according to claim 1, characterized in that, The groove of the conductive rubber groove plate is oriented towards the door leaf.

4. The suspended swing-type explosion-proof electromagnetic shielded door according to claim 1, characterized in that, The conductive rubber is a hollow O-ring conductive rubber ring.

5. The suspended swing-type explosion-proof electromagnetic shielded door according to claim 1, characterized in that, In the assembled state, the conductive rubber protrudes from the conductive rubber groove plate.

6. The suspended swing-type explosion-proof electromagnetic shielded door according to claim 1, characterized in that, The outer sides of the two conductive rubber groove plates are connected to a sealed rubber plate.

7. The suspended swing-type explosion-proof electromagnetic shielded door according to claim 1, characterized in that, The outer door panel of the door leaf is provided with an outer pressure plate for pressing the outer metal mesh to the outer door panel of the door leaf.

8. The suspended swing-type explosion-proof electromagnetic shielded door according to claim 7, characterized in that, The inner door panel of the door leaf is provided with an inner pressure plate for pressing the inner metal mesh to the inner door panel of the door leaf.

9. The suspended swing-type explosion-proof electromagnetic shielded door according to claim 8, characterized in that, The outer door panel and the inner door panel are provided with multiple blind holes, and the outer pressure plate and the inner pressure plate are tightly connected to the outer metal mesh and the inner metal mesh respectively by countersunk screws.

10. The suspended swing-type explosion-proof electromagnetic shielded door according to any one of claims 1-9, characterized in that, The outer metal mesh and the inner metal mesh are copper mesh or Monel metal mesh; the mesh count of the outer metal mesh and the inner metal mesh is greater than 80 mesh.

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