阅读说明：本技术 一种电磁屏蔽双开门 (Electromagnetic shielding double door ) 是由 蔡东宝 朱伟龙 王海军 于 2020-05-29 设计创作，主要内容包括：本发明公开了一种电磁屏蔽双开门,包括门框、左门板、右门板、屏蔽簧片和金属屏蔽密封条,在门框顶部和底部偏中心位置开缺口,增设门框补偿块,并在门框补偿块表面安装屏蔽簧片用以压住金属屏蔽密封条,左门板顶部与底部增设与门框补偿块相适配的门板补偿块,当双开门处于闭合状态下,门板补偿块嵌入门框补偿块内进行啮合且二者将屏蔽簧片和金属屏蔽密封条夹紧,实现双开门的电磁屏蔽。本发明提供的电磁屏蔽双开门,在门框、门板处分别增添门框补偿块和门板补偿块,为解决补偿块处的高度差问题,优化了屏蔽密封条结构及安装方式,实现了双开门的电气连续性,提高了屏蔽性能,为具有40dB双开门方舱提供了技术上支持。(The invention discloses an electromagnetic shielding double door which comprises a door frame, a left door plate, a right door plate, a shielding reed and a metal shielding sealing strip, wherein notches are formed in the eccentric positions of the top and the bottom of the door frame, a door frame compensation block is additionally arranged, the surface of the door frame compensation block is provided with the shielding reed for pressing the metal shielding sealing strip, the top and the bottom of the left door plate are additionally provided with the door plate compensation block matched with the door frame compensation block, when the double door is in a closed state, the door plate compensation block is embedded into the door frame compensation block for meshing, and the shielding reed and the metal shielding sealing strip are clamped tightly, so that the electromagnetic shielding of the double door is. According to the electromagnetic shielding double-door, the door frame compensation block and the door panel compensation block are respectively added at the door frame and the door panel, so that the problem of height difference at the compensation blocks is solved, the structure and the installation mode of the shielding sealing strip are optimized, the electrical continuity of the double-door is realized, the shielding performance is improved, and the technical support is provided for the 40dB double-door shelter.)

1. An electromagnetic shielding double door comprises a door frame and a double door panel arranged on the door frame, wherein the double door panel is opened or closed relative to the door frame and comprises a left door panel and a right door panel, it is characterized by also comprising a shielding reed and a metal shielding sealing strip, wherein the top and the bottom of the door frame are respectively provided with a notch at the center part, a door frame compensation block is additionally arranged at the notch, the top and the bottom of the left door plate are respectively provided with a door plate compensation block matched with the door frame compensation block, the contact part of the door frame and the double-open door plate is provided with the metal shielding sealing strip, the door frame compensation block is provided with the shielding reed and the metal shielding sealing strip, when the double-open door is in a closed state, the door plate compensation block is embedded into the door frame compensation block for meshing, the shielding reed and the metal shielding sealing strip are clamped tightly by the door plate compensation block and the door frame compensation block, the metal shielding sealing strip is pressed by the shielding reed, and the size of the metal shielding sealing strip is adjustable.

2. The electromagnetically shielding double door as claimed in claim 1, wherein the door frame compensation block is a U-like stop having the same shape as the door frame and a groove formed in the middle thereof, and the door panel compensation block is an L-shaped block inserted into the groove to be engaged with the door frame compensation block.

3. The electromagnetically shielding double door as claimed in claim 1, wherein a pressing plate is further disposed at the door frame compensation block, the metal shielding sealing strip at the door frame compensation block is disposed below the pressing plate and the shielding reed, the pressing plate and the metal shielding sealing strip are fixed to the door frame compensation block by screws.

4. The electromagnetically shielded double door as claimed in claim 1, wherein four layers of metal shielding sealing strips with adjustable size are respectively clamped at the contact position of the door frame and the double door panel and at the contact position of the left door panel and the right door panel, the metal shielding sealing strips comprise inner cores and wire nets wrapping the inner cores, and the size of the metal shielding sealing strips is adjusted by cutting a part of the wire nets and removing the inner cores.

5. The electromagnetically shielding double door as claimed in claim 4, wherein the inner core is a resilient sponge sealing strip made of EPDM virgin rubber through vulcanization and high-temperature foaming.

Technical Field

The invention belongs to the technical field of shielding double doors, and particularly relates to an electromagnetic shielding double door.

Background

In recent years, with the increasing progress of informatization, electromagnetic countermeasure has become one of the key factors for determining the victory or defeat of war. The shelter is used as a carrier for common military equipment and personnel working and living, and the electromagnetic shielding performance of the shelter becomes one of important indexes for detecting the performance of the shelter. The door is used as the largest hole of the shelter, and the electromagnetic shielding performance of the door directly influences the overall shielding performance of the shelter. Meanwhile, with the diversification of modern equipment, the requirement of the opposite side cabin door of large-scale equipment such as cabinets, transportation equipment and the like on the passing size is also continuously improved, and the development of shielding double doors is urgent.

However, the difficulty of developing and popularizing the shielding double door is mainly attributed to the following problems: 1. a large gap exists between the contact part of the door seam of the double door and the door frame; 2. a large gap exists between the contact positions of the upper corner and the lower corner of the two doors and the contact position of the door frame; 3. the shield seal between the two door panels is broken and is difficult to make full contact.

Disclosure of Invention

In order to solve the technical problems in the prior art, the invention aims to provide an electromagnetic shielding double door, which is improved and innovated in structure, and a novel double door structure is designed to realize 40dB electromagnetic shielding effect of the double door.

In order to achieve the purpose and achieve the technical effect, the invention adopts the technical scheme that:

an electromagnetic shielding double door comprises a door frame, a double door plate arranged on the door frame, a shielding reed and a metal shielding sealing strip, wherein the double door plate is opened or closed relative to the door frame and comprises a left door plate and a right door plate, notches are respectively arranged at the eccentric positions of the top and the bottom of the door frame, door frame compensation blocks are additionally arranged at the notches, door plate compensation blocks matched with the door frame compensation blocks are respectively arranged at the top and the bottom of the left door plate, the metal shielding sealing strip is arranged at the contact position of the door frame and the double door plate and the mutual contact position of the left door plate and the right door plate, the shielding reed and the metal shielding sealing strip are arranged at the door frame compensation blocks, when the double door is in a closed or closed state, the door plate compensation blocks are embedded into the door frame compensation blocks to be meshed, the shielding reed and the metal shielding sealing strip are clamped tightly, the metal shielding sealing, and electromagnetic shielding continuity of the double doors is realized.

Furthermore, the door frame compensation block is a U-like stop block, the shape of the U-like stop block is the same as that of the door frame, a groove is formed in the middle of the U-like stop block, the door plate compensation block is an L-shaped block, and the door plate compensation block is embedded into the groove to be meshed with the door frame compensation block.

Furthermore, a pressing plate is further arranged at the position of the door frame compensation block, the metal shielding sealing strip at the position of the door frame compensation block is positioned below the pressing plate and the shielding reed, the pressing plate and the metal shielding sealing strip are fixed on the door frame compensation block through screws.

Furthermore, four layers of metal shielding sealing strips with adjustable sizes are clamped at the contact position of the door frame and the double-opening door plate and the mutual contact position of the left door plate and the right door plate respectively, each metal shielding sealing strip comprises an inner core and a metal wire mesh wrapping the inner core, and the size of each metal shielding sealing strip is adjusted by cutting part of the metal wire mesh and removing the inner core.

Furthermore, the inner core is an elastic sponge sealing strip which is made of EPDM virgin rubber through vulcanization high-temperature foaming molding.

Compared with the prior art, the invention has the beneficial effects that:

1. the left door plate and the door frame of the double-opening door plate are meshed and innovated: notches are formed in the positions, deviated from the center, of the top and the bottom of the door frame, door plate compensation blocks matched with the door frame compensation blocks in position, size, shape and the like are added at the corners of the top and the bottom of the left door plate and are used for being meshed with the door frame compensation blocks on the door frame, and the sealing effect is better;

2. the innovation of shielding and sealing is as follows: compared with the conventional shielding sealing strip adopted in the prior art, the inner core of the metal shielding sealing strip has better elasticity and better conductive effect, and the height or the size of the metal shielding sealing strip can be adjusted by directly cutting part of a wire mesh wrapping the inner core to remove the inner core, so that the problem of height difference at a compensation position is avoided;

3. the sealing strip mounting mode is innovated: compared with the prior art that the sealing strip is directly installed at the notch of the door frame profile and is spliced in a breaking mode when meeting interference and height difference, the installation mode of the metal shielding sealing strip is optimized, the sealing strip is not broken when meeting interference and height difference, the size of the metal shielding sealing strip is adjusted by changing an inner core, the complete continuity of a metal wire mesh on the sealing strip is ensured, and the electrical continuity is realized;

4. the installation mode of the upper door seam and the lower door seam is innovative: the shielding reed is added at the position of the door frame compensation block, so that the door frame and the door panel are completely matched, the electrical continuity is realized, and the shielding performance of double doors is ensured.

Drawings

FIG. 1 is a schematic front view of a door frame and a double door panel according to the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1 in accordance with the present invention;

FIG. 3 is a cross-sectional view B-B of FIG. 1 in accordance with the present invention;

FIG. 4 is a schematic view of the back structures of the doorframe and the double door panel of the present invention;

FIG. 5 is a cross-sectional view C-C of FIG. 4 of the present invention;

FIG. 6 is a schematic structural diagram of a door frame compensation block according to the present invention;

FIG. 7 is an enlarged view of the structure of the door frame compensation block of FIG. 6 according to the present invention;

fig. 8-9 are schematic perspective views of the door frame compensation block of the present invention;

FIG. 10 is a schematic structural diagram of a door panel compensation block according to the present invention;

FIG. 11 is an enlarged view of the door panel compensation block of the present invention;

FIG. 12 is a schematic perspective view of a door panel compensation block according to the present invention;

fig. 13 is a schematic view of the connection between the door frame compensation block and the door panel compensation block according to the present invention.

Detailed Description

The embodiments of the present invention will be described in detail with reference to the accompanying drawings so that the advantages and features of the invention can be more easily understood by those skilled in the art, and the scope of the invention will be clearly and clearly defined.

As shown in figures 1-13, an electromagnetic shielding double door comprises a door frame 1 and a double door panel installed on the door frame 1, wherein the double door panel comprises a left door panel 5 and a right door panel 5-1 which are opposite in surface, the shapes and the sizes of the left door panel 5 and the right door panel 5-1 are the same, the difference is that the part of the door panel, close to the right door panel 5-1, of the left door panel 5 is the same as that of the door frame 1, the other parts are the same, the left door panel 5 and the right door panel 5-1 can be opened or closed relative to the door frame 1, the top and the bottom of the door frame 1 are respectively provided with a notch 2, the notch 2 is additionally provided with a door frame compensation block 3, the top and the bottom of the corner of the left door panel 5 of the double door panel are respectively provided with a door compensation block 6 matched with the door frame compensation block 3, the door frame compensation block 3 is provided with a shielding reed 4 and a shielding sealing, realize waterproof, rain-proof purpose, contact department and left door plant 5 and right door plant 5-1 of two door plants at door frame 1 and two door plants contact each other department and be close to inboard metal shielding sealing strip 7 that sets up adjustable size, two door plants are in when closed or closing, door plant compensation block 6 is embedded into and is meshed in door frame compensation block 3 and the two with shielding reed 4 with shielding sealing strip 7 presss from both sides tightly, realize the size control through metal shielding sealing strip 7, it is inseparabler to ensure two door contacts, improve electrical continuity, shielding performance heightens.

The door frame compensation block 3 is a U-shaped stop block, the shape of the U-shaped stop block is the same as that of the door frame 1, a groove is formed in the middle of the U-shaped stop block and used for being meshed with the door plate compensation block, the door plate compensation block 6 is an L-shaped block matched with the door frame compensation block 3, and the surface shape and the size of the L-shaped block are matched with the left door plate 5 and the door frame compensation block 3.

Door frame compensation block 3 sets up in the baffle 9 of horizontal connecting portion 8 both sides including placing horizontal connecting portion 8 and the symmetry in breach 2, set up on baffle 9 with 1 appearance looks isophase adaptation's of door frame class U-shaped arch 10 and square groove 11, set up on door plant compensation block 6 with the class U-shaped arch 10 on the door frame compensation block 3 and square groove 11 looks adaptation's recess 12, set up clamp plate 13 on the horizontal connecting portion 8 of door frame compensation block 3, shielding reed 4 and shielding sealing strip 7, metal shielding sealing strip 7 is located between clamp plate 13 and door frame compensation block 3, be located clamp plate 13, shielding reed 4 below, will shield reed 4 through the screw, clamp plate 13 and metal shielding sealing strip 7 are fixed in on door frame compensation block 3, door frame compensation block 3 presss from both sides tight shielding reed 4 and shielding sealing strip 7 after meshing with door frame compensation block 6, form good electrical sealing.

Door frame 1 is the same with two door plant circles, it is direct with four layers of adjustable size's metallic shield sealing strip 7 clamp in door frame 1 and two door plant's door gap or contact department and two door plant each other inside the department of contact, metallic shield sealing strip 7 includes the wire net of inner core and parcel inner core, the inner core is for having elastic sponge sealing strip by EPDM virgin rubber through the shaping of vulcanizing high temperature foaming, the outside parcel wire net of sponge sealing strip, at door frame compensating block 3, 6 positions of door plant compensating block are located because of there being the difference in height, so through using the cutter to cut the wire net of one side on metallic shield sealing strip 7, get rid of the inner core of mid portion and adjust the difference in height, realize the tight seal of compensating block department, decide the volume of getting rid of according to door frame compensating block 3's size.

The invention can be applied to products such as a shelter, the double door is a 40dB shielding double door, and is applied to a 40dB electromagnetic shielding cabin, the door frame 1 is arranged on the cabin body, the top of the door frame 1 and the outer wall 14 of the cabin body are provided with rain-proof eaves 15, in order to improve the sealing performance of the double door after the double door is closed, the invention can arrange locks 16 on the left door panel 5 and the right door panel 5-1, the locks 16 adopt various existing lock products, the locks 16 can also be arranged into three-point roller shaft locks, and the like, and only the left door panel 5 and the right door panel 5-1 can be completely pressed and tightly closed with the door frame 1.

The double door plate opening device can also be provided with door limiting devices 18 for buffering the double door plates or realizing limiting when the double door plates are opened, the door limiting devices 18 are provided with two fixing seats which are symmetrically arranged on the left door plate 5 and the right door plate 5-1, the door limiting devices 18 on the left door plate 5 and the right door plate 5-1 comprise a fixing seat arranged on the door frame 1 and positioned on the inner wall 17 of the cabin body, a movable plate arranged on the left door plate 5 and the right door plate 5-1 and a connecting rod connected with the fixing seat and the movable plate, the connecting rod rotates around the contact point of the connecting rod and the fixing seat, when the double door plates are opened, the movable plates on the left door plate 5 and the right door plate 5-1 drive the connecting rod to move to a certain angle, when the double door plates are closed, the movable plates on the left door.

The parts of the invention not described in detail can be realized by adopting the prior art, and are not described herein.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.