Waveguide window convenient to install

Abstract

The invention belongs to the technical field of waveguide windows, and particularly relates to a waveguide window convenient to install. The antenna comprises: a circular waveguide assembly; the pair of rectangular waveguides are symmetrically and fixedly mounted on the two surfaces of the circular waveguide assembly; the circular waveguide assembly comprises a shell, a circular waveguide medium is mounted in the shell, a waveguide space is formed between the waveguide medium and the inner wall of the shell, a semicircular opening is formed in the shell, and the waveguide medium is mounted in the shell through the opening; a pair of arc-shaped sealing plates is connected to the shell in a sliding mode and used for sealing the opening, and a pressing assembly is fixedly installed on the inner wall of the shell and used for pressing and fixing the waveguide medium; the rectangular waveguide and the circular waveguide assembly are arranged, the circular waveguide assembly comprises the shell and the waveguide medium, when the waveguide window is replaced, only the waveguide medium needs to be replaced, the whole waveguide window does not need to be replaced, and the waveguide medium is convenient to mount and dismount.

Description

Technical Field

[0001] The present invention relates to the technical field of waveguide windows, and particularly to a waveguide window that is convenient for installation. Background Art

[0002] Waveguide sealing windows are mainly applied in high-power microwave systems with inflation requirements, and generally consist of a rectangular waveguide and a microwave dielectric sheet. The cross-section of the inner cavity of the rectangular waveguide is usually a standard rectangular waveguide aperture. The mode transmitted in the inner cavity of the rectangular waveguide is the TE10 mode, and the electric field is the strongest at the center of the wide side of the cross-section of the inner cavity of the rectangular waveguide. The microwave dielectric sheet is usually a cuboid thin sheet, and the size of the cross-section is usually the same as the rectangular waveguide aperture, and it is welded to the inner wall of the rectangular waveguide at the center position in the length direction of the inner cavity of the rectangular waveguide.

[0003] The waveguide window applied to an electromagnetic shielding room is mainly a welded steel corrugated plate, which has good electromagnetic shielding effect, but has a large overall weight, is easy to corrode, has a short working life, needs to replace the entire waveguide window when replacing, has a large cost, and is difficult to install and disassemble. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides a waveguide window that is convenient for installation. When replacing the waveguide window, only the circular waveguide medium in the shell needs to be replaced, aiming to solve the problems in the background art.

[0005] To achieve the above technical purpose, the specific technical solution of the present invention is as follows. A waveguide window that is convenient for installation proposed by the present invention includes: a circular waveguide assembly; a pair of rectangular waveguides symmetrically and fixedly installed on both sides of the circular waveguide assembly; the circular waveguide assembly includes a shell, a circular waveguide medium is installed inside the shell, a waveguide space is provided between the waveguide medium and the inner wall of the shell, and a semi-circular opening is provided on the shell, and the waveguide medium is installed in the shell through the opening; a pair of arc-shaped sealing plates are slidably connected to the shell for closing the opening, and a pressing assembly is fixedly installed on the inner wall of the shell for pressing and fixing the waveguide medium.

[0006] As a preferred technical solution of the present invention, both ends of the opening are provided with notches, a rotating plate is rotatably connected in the notch, the rotating plate is connected to the pressing assembly through a connecting rod, and when the rotating plate rotates towards the notch direction, it drives the pressing assembly to press and fix the waveguide medium.

[0007] As a preferred technical solution of the present invention, the pressing assembly includes: a fixing plate fixedly connected to the inner wall of the shell; a pressing plate for pressing the waveguide medium, a telescopic rod is fixedly connected between the pressing plate and the fixing plate; and a slider is slidably connected to the fixing plate, and the connecting rod is rotatably connected to the slider; a guide rail slidably connected to the slider is fixedly connected to the pressing plate, and the thickness of the guide rail gradually increases from top to bottom.

[0008] As a preferred technical solution of the present invention, a shaft rod is coaxially and fixedly connected to the rotating plate, and a guide rod is fixedly connected to the shaft rod. A pair of sliding seats are connected to both ends of the sealing plate, and the sliding seats are slidably connected to the housing. The sliding seats are fixedly connected with arc-shaped plates, and inclined slots which are slidably matched with the guide rods are arranged on the arc-shaped plates. When the rotating plate rotates, the sliding seats will be driven to slide.

[0009] As a preferred technical solution of the present invention, a sliding rod is fixedly connected to the sliding seat, a spring is connected to the surface of the sliding rod, and brackets which are slidably connected to the sliding rod are fixedly connected to both ends of the sealing plate.

[0010] As a preferred technical solution of the present invention, a slide rail which is slidably connected to the sliding seat is arranged on the housing, and a pair of limiting blocks are fixedly connected to the rotating plate for limiting both sides of the waveguide medium.

[0011] As a preferred technical solution of the present invention, guiding ridges are symmetrically arranged on the inner wall of the rectangular waveguide, and a rectangular hole which is matched with the rectangular waveguide is arranged on the housing.

[0012] As a preferred technical solution of the present invention, a sealing strip which is hermetically matched with the waveguide medium is fixedly connected to the inner side of the sealing plate.

[0013] As a preferred technical solution of the present invention, a clamping rod is connected between the two sealing plates, and the clamping rod is used for clamping and cooperating with the brackets.

[0014] The beneficial effects in the present invention are as follows: 1. By providing a rectangular waveguide and a circular waveguide assembly in the present invention, the circular waveguide assembly includes a housing and a waveguide medium. When replacing the waveguide window, only the waveguide medium needs to be replaced, and there is no need to replace the entire waveguide window. The installation and disassembly of the waveguide medium are convenient.

[0015] 2. By providing a pressing assembly in the housing in the present invention, a sealing plate and a rotating plate are connected to the housing. After the waveguide medium is installed in the housing, the rotating plate is driven to rotate. When the rotating plate rotates, it automatically drives the pressing assembly to press and fix the waveguide medium, and at the same time drives the two sealing plates to close the opening, ensuring the sealing of the housing, so that the installation of the waveguide medium is relatively convenient. Description of the Drawings

[0016] Figure 1 It is a schematic structural diagram of a waveguide window convenient for installation proposed by the present invention.

[0017] Figure 2 It is Figure 1 a partial enlarged view of part A in

[0018] Figure 3 a schematic cross-sectional view of the circular waveguide assembly proposed by the present invention.

[0019] Figure 4 This is a schematic structural diagram of the housing proposed by the present invention.

[0020] Figure 5 For Figure 4 a partial enlarged view at position B in [the figure].

[0021] Figure 6 This is a schematic structural diagram of the pressing assembly proposed by the present invention.

[0022] Figure 7 This is a schematic structural diagram of the sliding seat proposed by the present invention.

[0023] Figure 8 This is a schematic structural diagram of the rotating plate proposed by the present invention.

[0024] Figure 9 This is a schematic structural diagram of the sealing plate proposed by the present invention.

[0025] In the figure: 1, rectangular waveguide; 2, circular waveguide assembly; 21, housing; 22, sealing plate; 221, sealing strip; 222, bracket; 23, pressing assembly; 231, fixing plate; 232, pressing plate; 233, telescopic rod; 234, slider; 235, guide rail; 24, sliding seat; 241, arc plate; 242, inclined groove; 243, sliding rod; 244, spring; 25, connecting rod; 26, notch; 27, rotating plate; 271, limiting block; 272, shaft rod; 273, guide rod; 28, slide rail; 29, rectangular hole; 210, opening; 3, waveguide medium; 4, guiding ridge; 5, waveguide space; 6, clamping rod. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0027] Embodiment: This embodiment discloses a waveguide window that is convenient for installation, as Figures 1-9As shown in the figure, it includes: a circular waveguide component 2, a rectangular waveguide 1. There is a pair of rectangular waveguides 1 which are symmetrically and fixedly installed on both sides of the circular waveguide component 2. A flange is provided on the side of the rectangular waveguide 1 to facilitate the installation of the waveguide window. The circular waveguide component 2 includes a housing 21. Inside the housing 21, a circular waveguide medium 3 is installed. There is a waveguide space 5 between the waveguide medium 3 and the inner wall of the housing 21. Electromagnetic waves enter the waveguide space 5 through the rectangular waveguide 1 and are evenly distributed through the waveguide medium 3 through the waveguide space 5, so that the electromagnetic waves are evenly dispersed. Among them, the waveguide medium 3 has the same size as the inner hole of the housing 21, so that the waveguide medium 3 can be installed in the housing 21 and fit with the inner wall of the housing 21. And a semi-circular opening 210 is provided on the housing 21. The waveguide medium 3 is installed in the housing 21 through the opening 210. A pair of arc-shaped sealing plates 22 are slidably connected to the housing 21 for closing the opening 210. And a pressing component 23 is fixedly installed on the inner wall of the housing 21 for pressing and fixing the waveguide medium 3. Two pressing components 23 are fixedly installed on each inner wall side of the housing 21, and a total of four pressing components 23 are installed in the housing 21.

[0028] Preferably, guiding ridges 4 are symmetrically provided on the inner wall of the rectangular waveguide 1 to enable better conduction of electromagnetic waves into the waveguide medium 3. A rectangular hole 29 matching the rectangular waveguide 1 is provided on the housing 21.

[0029] As Figures 4-6 shown, both ends of the opening 210 are provided with notches 26. A rotating plate 27 is rotatably connected in the notch 26. The size of the rotating plate 27 is the same as that of the notch 26, so that when the rotating plate 27 rotates into the notch 26, it can close the notch 26. The rotating plate 27 is connected to the pressing component 23 through a connecting rod 25. When the rotating plate 27 rotates towards the notch 26, it automatically drives the pressing component 23 to press and fix the waveguide medium 3. Among them, the pressing component 23 includes: a fixing plate 231 fixedly connected to the inner wall of the housing 21; a pressing plate 232 for pressing the waveguide medium 3. A telescopic rod 233 is fixedly connected between the pressing plate 232 and the fixing plate 231. And a slider 234 is slidably connected to the fixing plate 231. The connecting rod 25 is rotatably connected to the slider 234. A guide rail 235 slidably connected to the slider 234 is fixedly connected to the pressing plate 232. The thickness of the guide rail 235 gradually increases from top to bottom. When the waveguide medium 3 is installed into the housing 21 through the opening 210, the waveguide medium 3 will drive the rotating plate 27 to rotate towards the notch 26. When the rotating plate 27 rotates, it drives the slider 234 to slide downward, thereby driving the pressing plate 232 to move towards the waveguide medium 3, automatically pressing and fixing the waveguide medium to prevent the waveguide medium from shaking, and the installation is convenient.

[0030] As Figure 2 、 Figure 7 and Figure 8As shown, a shaft rod 272 is coaxially and fixedly connected to the rotating plate 27. A guide rod 273 is fixedly connected to the shaft rod 272. A pair of sliding seats 24 are connected to both ends of the sealing plate 22. The sliding seats 24 are slidably connected to the housing 21. A slide rail 28 for slidably connecting with the sliding seats 24 is provided on the housing 21. The sliding seat 24 is fixedly connected with an arc-shaped plate 241. The center of the arc-shaped plate 241 coincides with the shaft rod 272. An inclined slot 242 for slidably mating with the guide rod 273 is provided on the arc-shaped plate 241. The direction of the inclined slot 242 gradually approaches the notch 26 from top to bottom, so that when the rotating plate 27 rotates upward, it will drive the two sliding seats 24 to approach each other; a slide rod 243 is fixedly connected to the sliding seat 24. A spring 244 is connected to the surface of the slide rod 243. A support 222 for slidably connecting with the slide rod 243 is fixedly connected to both ends of the sealing plate 22. A slide hole for slidably connecting with the slide rod 243 is provided on the support 222. A limit nut is fixedly connected to the slide rod 243 for limiting the support 222. The support 222 is arranged between the limit nut and the spring 244. Among them, the spring 244 is sleeved on the surface of the slide rod 243, and the spring 244 is arranged between the support 222 and the sliding seat 24; when the sealing plate 22 is installed on the housing 21, the support 222 is at the middle position of the slide rod 243. One end of the spring 244 contacts the surface of the support 222, and the spring 244 exerts an outward elastic force on the support 222; among them, to further fix the sealing plate 22, a clamping rod 6 is connected between the two sealing plates 22. The clamping rod 6 is used for clamping and mating with the support 222. Clamping portions for engaging with the support 222 are provided at both ends of the clamping rod 6; specifically in implementation: when the waveguide medium 3 is pressed downward from the opening 210 and installed into the housing 21, the waveguide medium 3 contacts the rotating plate 27 and drives the rotating plate 27 to rotate towards the notch 26. When the rotating plate 27 rotates towards the notch 26, the end of the guide rod 273 slides upward in the inclined slot 242, thereby driving the two sliding seats 24 to approach each other. When the sliding seat 24 moves, it drives the slide rod 243 to move. When the slide rod 243 moves, the limit nut contacts the support 222 and drives the support 222 to move inward, thereby driving the two sealing plates 22 to approach each other, so that the distance between the two sealing plates 22 gradually decreases. After the waveguide medium 3 is completely installed into the housing 21, then the two ends of the clamping rod 6 are stuck outside the two supports 222. During the clamping process, the sliding seat 24 does not move, and the support 222 moves inward along the slide rod 243, so that the two sealing plates 22 are in close contact with each other, completely closing the opening 210. At this time, the spring 244 is in a state of being compressed by force. Since the spring 244 exerts an outward elastic force on the support 222, the pressure between the support 222 and the clamping rod 6 is increased, making the clamping between the clamping rod 6 and the support 222 stable.

[0031] Preferably, a pair of limit blocks 271 are fixedly connected to the rotating plate 27 for limiting both sides of the waveguide medium 3, so that the installation position of the waveguide medium 3 is accurate.

[0032] Preferably, as Figure 9As shown, a sealing strip 221 fixedly connected to the inner side of the sealing plate 22 is in sealing fit with the waveguide medium 3. When the sealing plate 22 closes the opening 210, the sealing strip 221 contacts the circumferential surface of the waveguide medium 3, thereby sealing the waveguide medium 3.

[0033] Working principle: When replacing and installing the waveguide medium 3, the waveguide medium 3 is installed into the housing 21 through the opening 210. During the installation process, the waveguide medium 3 drives the rotating plate 27 to rotate towards the notch 26, thereby driving the pressing assembly 23 to press the surface of the waveguide medium 3. When the waveguide medium 3 is completely installed into the housing 21, the pressing assembly 23 presses and fixes the surface of the waveguide medium 3. At the same time when the rotating plate 27 rotates, it drives the two sliding seats 24 to approach each other, thereby driving the two sealing plates 22 to approach each other. Then, the clamping rod 6 is stuck at the position of the bracket 222 of the two sealing plates 22, thereby clamping and fixing the sealing plates 22. The two sealing plates 22 contact and close with each other to seal the housing 21. When it is necessary to disassemble the waveguide medium 3, the clamping rod 6 can be removed first, and the two sealing plates 22 automatically bounce open under the elastic force of the spring 244, and then the waveguide medium 3 can be taken out and replaced. When the waveguide medium 3 is damaged, only the waveguide medium 3 needs to be replaced, and there is no need to replace the entire waveguide window, and the replacement cost is relatively small.

[0034] Finally, it should be noted that: In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0035] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A waveguide window that is easy to install, characterized in that: include: Circular waveguide assembly (2); A rectangular waveguide (1), wherein the rectangular waveguide (1) is provided with a pair and is symmetrically fixedly mounted on two sides of the circular waveguide component (2); The circular waveguide component (2) comprises a housing (21), a circular waveguide medium (3) is installed inside the housing (21), a waveguide space (5) is provided between the waveguide medium (3) and the inner wall of the housing (21), and a semicircular opening (210) is provided on the housing (21), and the waveguide medium (3) is installed in the housing (21) through the opening (210); A pair of arc-shaped sealing plates (22) are slidably connected to the housing (21) for closing the opening (210), and a pressing assembly (23) is fixedly mounted on the inner wall of the housing (21) for pressing and fixing the waveguide medium (3); Both ends of the opening (210) are provided with slots (26), a rotating plate (27) is rotatably connected in the slot (26), the rotating plate (27) is connected to the pressing assembly (23) via a connecting rod (25), and when the rotating plate (27) rotates in the direction of the slot (26), it drives the pressing assembly (23) to press and fix the waveguide medium (3); The clamping assembly (23) comprises: a fixed plate (231) fixedly connected to the inner wall of the housing (21); a pressing plate (232) used to press the waveguide medium (3), a telescopic rod (233) fixedly connected between the pressing plate (232) and the fixed plate (231); a sliding block (234) slidably connected to the fixed plate (231), and a connecting rod (25) rotatably connected to the sliding block (234); a guide rail (235) slidably connected to the sliding block (234) is fixedly connected to the pressing plate (232), and the thickness of the guide rail (235) gradually increases from top to bottom.

2. A waveguide window that is easy to install according to claim 1, characterized in that: The rotating plate (27) is coaxially fixedly connected to a shaft rod (272), and the shaft rod (272) is fixedly connected to a guide rod (273). A pair of slide seats (24) are connected to both ends of the sealing plate (22), and the slide seats (24) are slidably connected to the housing (21). The slide seats (24) are fixedly connected to an arc plate (241), and an inclined groove (242) slidably matched with the guide rod (273) is provided on the arc plate (241). When the rotating plate (27) rotates, the slide seats (24) are driven to slide.

3. A waveguide window that is easy to install according to claim 2, characterized in that: A slide rod (243) is fixedly connected to the slide seat (24), a spring (244) is connected to the surface of the slide rod (243), and brackets (222) slidably connected to the slide rod (243) are fixedly connected to both ends of the sealing plate (22).

4. A waveguide window that is easy to install according to claim 3, characterized in that: The housing (21) is provided with a slide rail (28) slidably connected to the slide seat (24), and the rotating plate (27) is fixedly connected with a pair of limit blocks (271) for limiting the positions of two sides of the waveguide medium (3).

5. A waveguide window that is easy to install according to claim 4, characterized in that: The inner wall of the rectangular waveguide (1) is symmetrically provided with guide ridges (4), and the housing (21) is provided with a rectangular hole (29) that matches the rectangular waveguide (1).

6. A waveguide window that is easy to install according to claim 5, characterized in that: A sealing strip (221) is fixedly connected to the inner side of the sealing plate (22) and is in sealing cooperation with the waveguide medium (3).

7. A waveguide window that is easy to install according to claim 6, characterized in that: A clamping rod (6) is connected between the two sealing plates (22), and the clamping rod (6) is used for clamping and fitting the bracket (222).

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