Shielding structure for shielding double door

Abstract

The shielding structure comprises a door frame, a left door plate and a right door plate are hinged to the two sides of the door frame respectively, a door handle is fixedly connected to the left side of the right door plate, a plurality of sets of air cylinder clamping mechanisms are fixedly connected to the upper side and the lower side of the door frame respectively, and each air cylinder clamping mechanism comprises an air cylinder. The air cylinders are fixed to the upper side and the lower side of the door frame, connecting rods are hinged to the output ends of the air cylinders, pressing plates are hinged to the other ends of the connecting rods, auxiliary blocks are hinged to the middles of the connecting rods, and the bottoms of the auxiliary blocks are fixedly connected with the door frame. The push-pull clamping mechanism comprises a push-pull base, the push-pull base is fixed to the middle of the left door plate, and a mounting base is fixedly arranged at the top of the outer surface of the push-pull base. The utility model has the characteristics that the beryllium copper reed abrasion can be solved, and the shielding function is perfected.

Description

Technical Field

[0001] The utility model relates to the field of electromagnetic shielding, in particular to a shielding structure for shielding double doors. Background Art

[0002] With the rapid development of science and technology, many industries such as military, aerospace, communications, and navigation have increasingly higher requirements for the electromagnetic compatibility of equipment. Electromagnetic shielding rooms have become necessary equipment for electromagnetic compatibility testing experiments. As the only movable component in the electromagnetic shielding room, the shielding door is the key and most important link in the comprehensive shielding performance of the shielding room.

[0003] Currently, most shielding doors use beryllium copper springs as a seal for the gap between the two contact surfaces. However, after long-term use, the beryllium copper springs will wear out, and the shielding door will not close completely, resulting in gaps and weakening the shielding effect.

[0004] Therefore, it is necessary to design a shielding structure for a shielded double door that can solve the wear of the beryllium copper reed and improve the shielding function. Utility Model Content

[0005] The purpose of the present invention is to provide a shielding structure for shielding double doors, so as to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a shielding structure for shielding double doors, comprising a door frame, a left door panel and a right door panel are hinged on both sides of the door frame, a door handle is fixedly connected to the left side of the right door panel, and a plurality of groups of cylinder clamping mechanisms are fixedly connected to the upper and lower sides of the door frame, the cylinder clamping mechanism comprises a cylinder, the cylinder is fixed to the upper and lower sides of the door frame, a connecting rod is hinged on the output end of the cylinder, a pressure plate is hinged on the other end of the connecting rod, an auxiliary block is hinged in the middle of the connecting rod, and the bottom of the auxiliary block is fixedly connected to the door frame.

[0007] According to the above technical solution, two sets of push-pull clamping mechanisms are fixedly connected to the middle part of the surface of the left door panel, and the push-pull clamping mechanism includes a push-pull base, which is fixed to the middle part of the left door panel, and a mounting seat is fixedly provided on the top of the outer surface of the push-pull base. A push-pull movable block 2 is hinged on the outer side of the push-pull base, and a push-pull movable block 2 is fixedly connected to a push-pull wrench at the other end. A push-pull movable block 1 is hinged to the middle part of the push-pull movable block 2, and a push-pull output end is hinged at the other end of the push-pull movable block 1, and the push-pull output end is slidably connected to the mounting seat.

[0008] According to the above technical solution, the push-pull output end is fixedly connected to a push rod, the other end of the push rod is fixedly connected to a pin block, and the middle part of the pin block is fixedly connected to a cylindrical pin.

[0009] According to the above technical solution, a locking block is fixedly connected to the bottom of the door frame near the center, a locking buckle is fixedly connected to the middle of the locking block, and a locking groove is opened at the bottom of the other end of the locking buckle.

[0010] According to the above technical solution, beryllium copper springs three are fixedly provided on all four surfaces of the inner side of the door frame, two sets of inserting blades one are respectively provided on the upper and lower ends of the outer side of the left door panel, and inserting blades two are respectively provided on the upper and lower ends of the right side of the left door panel.

[0011] According to the above technical solution, two sets of knife slots are respectively opened at the upper and lower ends of the outer side of the right door panel, and a beryllium copper reed is fixed on the inner wall of the knife slot one. The upper and lower ends of the inner side of the right door panel are respectively opened with a knife slot two, and a beryllium copper reed is fixed on the inner wall of the knife slot two.

[0012] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0013] (1) By providing a cylinder clamping mechanism and a pressure plate, the right door panel can be pressed and the gap can be eliminated so that the beryllium copper spring is squeezed by the inserting knife and the inserting knife slot again, thereby improving the electromagnetic shielding function;

[0014] (2) By providing a push-pull clamping mechanism, the left door panel can be locked;

[0015] (3) By providing multiple sets of knife slots and knives, multiple sealing effects are achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a partial cross-sectional view of the utility model;

[0019] Figure 3 This is a schematic diagram of the push-pull clamping mechanism in the utility model;

[0020] Figure 4 It is a schematic diagram of the cylinder clamping mechanism in the utility model;

[0021] Figure 5 It is a schematic diagram of the locking buckle part in the utility model.

[0022] In the figure: 1. Door frame; 2. Left door panel; 3. Right door panel; 4. Push-pull clamping mechanism; 401. Push rod; 402. Push-pull wrench; 403. Push-pull output terminal; 404. Push-pull base; 405. Push-pull movable block 1; 406. Push-pull movable block 2; 407. Cylindrical pin; 408. Locking buckle; 409. Mounting seat; 410. Locking block; 411. Locking slot; 412. Pin block; 5. Cylinder clamping mechanism; 501. Cylinder; 502. Pressing plate; 503. Connecting rod; 504. Auxiliary block; 6. Blade 1; 7. Door handle; 8. Blade slot 1; 9. Beryllium copper reed 1; 10. Beryllium copper reed 2; 11. Blade 2; 12. Blade slot 2; 13. Beryllium copper reed 3. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1 The utility model provides a technical solution: a shielding structure for shielding double doors, including a door frame 1, with a left door panel 2 and a right door panel 3 hinged on both sides of the door frame 1, a door handle 7 fixedly connected to the left side of the right door panel 3, which is convenient for pulling the right door panel 3 outward, a locking block 410 fixedly connected near the center of the bottom of the door frame 1, a locking buckle 408 fixedly connected to the middle of the locking block 410, and a locking groove 411 is opened at the bottom of the other end of the locking buckle 408.

[0025] See Figure 2 , beryllium copper reed three 13 are fixedly provided on the four sides of the inner surface of the door frame 1, two groups of inserting knives 6 are respectively provided at the upper and lower ends of the outer side of the left door panel 2, and inserting knives 2 11 are respectively provided at the upper and lower ends of the right side of the left door panel 2. Two groups of inserting knife grooves 8 are respectively opened at the upper and lower ends of the outer side of the right door panel 3, and the inner wall of the inserting knife groove 8 is fixed with a beryllium copper reed 9. The upper and lower ends of the inner side of the right door panel 3 are respectively opened with a inserting knife groove 2 12, and the inner wall of the inserting knife groove 2 12 is fixed with a beryllium copper reed 2 10.

[0026] See Figure 1 、 Figure 3 、 Figure 5The middle of the left door panel 2 is fixedly connected with two sets of push-pull clamping mechanisms 4. The push-pull clamping mechanism 4 includes a push-pull base 404. The push-pull base 404 is fixed to the middle of the left door panel 2. A mounting seat 409 is fixed on the top of the outer surface of the push-pull base 404. A push-pull movable block 2 406 is hinged on the outer side of the push-pull base 404. The other end of the push-pull movable block 2 406 is fixedly connected to a push-pull wrench 402. The middle of the push-pull movable block 2 406 is hinged. There is a push-pull movable block 405, the other end of which is hinged with a push-pull output end 403, which is slidingly connected to a mounting seat 409, and the push-pull output end 403 is fixedly connected to a push rod 401, and the other end of the push rod 401 is fixedly connected to a pin block 412, and the middle part of the pin block 412 is fixedly connected to a cylindrical pin 407. By turning the push-pull wrench 402, the cylindrical pin 407 is controlled to be buckled by the locking buckle 408.

[0027] See Figure 1 and Figure 4 , multiple groups of cylinder clamping mechanisms 5 are fixedly connected to the upper and lower sides of the door frame 1. The cylinder clamping mechanism 5 includes a cylinder 501. The cylinder 501 is fixed to the upper and lower sides of the door frame 1. The output end of the cylinder 501 is hinged with a connecting rod 503, and the other end of the connecting rod 503 is hinged with a pressure plate 502. The middle part of the connecting rod 503 is hinged with an auxiliary block 504. The bottom of the auxiliary block 504 is fixedly connected to the door frame 1. By starting the cylinder 501, the pressure plate 502 can be triggered to press the right door panel 3.

[0028] Working principle:

[0029] When the shield door needs to be closed, first push the left door panel 2. After pushing the left door panel 2 to a certain angle, pull the push-pull wrench 402 of the push-pull clamping mechanism 4, and the push-pull output end 403 pushes the push rod 401 to move linearly toward both ends. During the movement, the push rod 401 pushes the pin block 412 and the cylindrical pin 407. After rising to a certain height, the cylindrical pin 407 begins to touch the locking buckle 408 until it completely enters the locking groove 411 and is buckled by the locking buckle 408, thus pressing and closing the left door panel 2.

[0030] After the left door panel 2 is closed, the door handle 7 is pushed until the blade slot 1 8 engages with the blade 1 6 and the blade slot 2 12 engages with the blade 2 11. At this time, the blade 1 6 mutually squeezes the beryllium copper reed 1 9 in the blade slot 1 8; the blade 2 11 mutually squeezes the beryllium copper reed 2 10 in the blade slot 2 12. The blade slots and blades in the left and right door panels 2 and 3 cooperate with each other, and the beryllium copper reed is squeezed by the blade and the blade slot, so that the contact surface is completely sealed to achieve electromagnetic shielding;

[0031] Cylinder 501 of the cylinder clamping mechanism 5 is then activated. As cylinder 501 activates, its output end continuously presses the other end of connecting rod 503 downward, gradually pressing down pressure plate 502 until the right door panel 3 is compressed. The beryllium copper spring wears out after prolonged door opening and closing, creating a gap between the blade and the slot, weakening the shielding effect. The cylinder clamping mechanism 5 eliminates this gap, allowing the beryllium copper spring to be squeezed between the blade and the slot again, improving electromagnetic shielding.

[0032] In the description of the present invention, it should be understood that the terms "middle", "bottom", "inside", "near the center", "both sides", "left side", "right side", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0033] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A shielding structure for shielding double doors, characterized by: The invention comprises a door frame (1), wherein a left door panel (2) and a right door panel (3) are hingedly connected to both sides of the door frame (1), a door handle (7) is fixedly connected to the left side of the right door panel (3), and a plurality of cylinder clamping mechanisms (5) are fixedly connected to the upper and lower sides of the door frame (1), wherein the cylinder clamping mechanisms (5) comprise a cylinder (501), wherein the cylinder (501) is fixed to the upper and lower sides of the door frame (1), an output end of the cylinder (501) is hingedly connected to a connecting rod (503), the other end of the connecting rod (503) is hingedly connected to a pressure plate (502), an auxiliary block (504) is hingedly connected to the middle of the connecting rod (503), and the bottom of the auxiliary block (504) is fixedly connected to the door frame (1).

2. The shielding structure for double doors according to claim 1, characterized in that: Two sets of push-pull clamping mechanisms (4) are fixedly connected to the middle of the surface of the left door panel (2), and the push-pull clamping mechanism (4) includes a push-pull base (404), the push-pull base (404) is fixed to the middle of the left door panel (2), and a mounting seat (409) is fixedly provided on the top of the outer surface of the push-pull base (404), a push-pull movable block 2 (406) is hinged on the outer side of the push-pull base (404), and the other end of the push-pull movable block 2 (406) is fixedly connected to a push-pull wrench (402), and the middle of the push-pull movable block 2 (406) is hinged to a push-pull movable block 1 (405), and the other end of the push-pull movable block 1 (405) is hinged to a push-pull output end (403), and the push-pull output end (403) is slidably connected to the mounting seat (409).

3. The shielding structure for double doors according to claim 2, characterized in that: The push-pull output end (403) is fixedly connected to a push rod (401), the other end of the push rod (401) is fixedly connected to a pin block (412), and the middle of the pin block (412) is fixedly connected to a cylindrical pin (407).

4. The shielding structure for double doors according to claim 1, characterized in that: A locking block (410) is fixedly connected to the bottom of the door frame (1) near the center, a locking buckle (408) is fixedly connected to the middle of the locking block (410), and a locking groove (411) is formed at the bottom of the other end of the locking buckle (408).

5. The shielding structure for double doors according to claim 1, characterized in that: Beryllium copper spring three (13) are fixedly provided on all four surfaces of the inner side of the door frame (1), two sets of inserting blades (6) are provided at the upper and lower ends of the outer side of the left door panel (2), and inserting blades (11) are provided at the upper and lower ends of the right side of the left door panel (2).

6. The shielding structure for double doors according to claim 1, characterized in that: The upper and lower ends of the outer side of the right door panel (3) are respectively provided with two sets of knife slots (8), and the inner wall of the knife slot (8) is fixed with a beryllium copper spring (9). The upper and lower ends of the inner side of the right door panel (3) are respectively provided with knife slots (12), and the inner wall of the knife slot (12) is fixed with a beryllium copper spring (10).

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