Microwave frequency calibration tool

Abstract

The utility model relates to the technical field of measurement, in particular to a microwave frequency calibration tool, which comprises an upper half cavity, a lower half cavity, an input end waveguide coaxial converter, an output end waveguide coaxial converter and a connecting assembly, a connecting rod penetrates through a first sliding groove and a second sliding groove for connection, the connecting rod limits the up-down moving position of an upper half cavity and a lower half cavity, then sliding rods at the two ends are pulled, the sliding rods slide in the connecting rod to extend the position, a limiting piece is rotated, and left-right moving of the upper half cavity and the lower half cavity is limited through the limiting piece; and finally, the connection of the input end waveguide coaxial converter and the output end waveguide coaxial converter is completed through the assembly of the connecting component, and the assembly is more convenient and faster through a sliding mode.

Description

Technical Field

[0001] The utility model relates to the technical field of measurement, in particular to a microwave frequency calibration tool. Background Art

[0002] Microwave communication is the use of electromagnetic microwaves with a wavelength between 1 mm and 1 m. When used, the measurement accuracy of this communication is not high and the performance is unstable.

[0003] The current prior art (CN103592510B) discloses a microwave frequency calibrator and a calibration method thereof, comprising an upper cavity, a lower cavity, an input-end waveguide coaxial converter, and an output-end waveguide coaxial converter; after the upper cavity and the lower cavity are threadedly fastened together, a square resonant cavity is formed inside, the two inner walls of the resonant cavity parallel to each other in the longitudinal direction are both square, the two inner walls parallel to each other in the transverse direction are both rectangular and respectively have symmetrically distributed input coupling windows and output coupling windows for connecting the waveguide coaxial converter; the four longitudinal edges on the inner wall of the resonant cavity have rounded corners, so that the electromagnetic field of the resonant cavity is a TE011 mode; the influence of the measurement errors of many variables in the frequency deviation calculation formula on the calculation result is converted into the change of the resonant frequency of the high-resolution calibrator under the current environmental conditions compared with the theoretical value, thereby correcting the calculation result of the frequency deviation calculation formula, which is not only simple in structure and easy to use, but also significantly improves the measurement accuracy and has stable and reliable performance.

[0004] However, in the above solution, the upper cavity and the lower cavity are connected by multiple bolts, which results in that multiple bolts need to be screwed when assembling the upper cavity and the lower cavity, which is rather troublesome. Utility Model Content

[0005] The utility model aims to provide a microwave frequency calibration tool, which can facilitate the assembly and disassembly of an upper cavity and a lower cavity.

[0006] To achieve the above-mentioned purpose, the utility model provides a microwave frequency calibration tool, comprising an upper cavity, a lower cavity, an input waveguide coaxial converter, an output waveguide coaxial converter and a connecting component, the connecting component comprising a connecting rod, a sliding rod and a limiter, the upper cavity is located on one side of the lower cavity, the input waveguide coaxial converter is arranged on one side of the lower cavity, the output waveguide coaxial converter is arranged on the side of the lower cavity away from the input waveguide coaxial converter, the upper cavity has a first slide groove, the first slide groove is located on one side of the upper cavity, the lower cavity has a second slide groove, the second slide groove is located on one side of the lower cavity, the connecting rod is slidably connected to the upper cavity and the lower cavity respectively, and is located between the first slide groove and the second slide groove, the sliding rod is located on the inner side of the connecting rod, and the limiter is fixedly connected to the sliding rod and is located on one side of the sliding rod.

[0007] Wherein, the connection assembly further includes a connection cap, which is slidably connected to the upper cavity and is located at one side of the upper cavity.

[0008] In which, the connecting assembly includes a first limiting ring, a first mounting ring, a first rotating rod and a first mounting plate, the first limiting ring is fixedly connected to the input end waveguide coaxial converter and is located on one side of the input end waveguide coaxial converter, the first mounting ring is rotatably connected to the first limiting ring and is located on one side of the first limiting ring, the first rotating rod is fixedly connected to the first mounting ring and is located on one side of the first mounting ring, and the first mounting plate is fixedly connected to the first rotating rod and is located on one side of the first rotating rod.

[0009] In which, the connecting assembly includes a second limiting ring, a second mounting ring, a second rotating rod and a second mounting plate, the second limiting ring is fixedly connected to the output end waveguide coaxial converter and is located on one side of the output end waveguide coaxial converter, the second mounting ring is rotatably connected to the second limiting ring and is located on one side of the second limiting ring, the second rotating rod is fixedly connected to the second mounting ring and is located on one side of the second mounting ring, and the second mounting plate is fixedly connected to the second rotating rod and is located on one side of the second rotating rod.

[0010] Wherein, the microwave frequency calibration tool also includes an adjustment component, the adjustment component includes a first adjustment gear, the first mounting plate has a first tooth groove, the first tooth groove is located on one side of the first mounting plate, and the first adjustment gear is slidably connected to the input end waveguide coaxial converter and is located on one side of the input end waveguide coaxial converter.

[0011] Wherein, the adjustment assembly also includes a second adjustment gear, the second mounting plate has a second tooth groove, the second tooth groove is located on one side of the second mounting plate, and the second adjustment gear is slidingly connected to the output end waveguide coaxial converter and is located on one side of the output end waveguide coaxial converter.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. By setting the connecting rod, the sliding rod, the limiting piece and the connecting member, the connecting rod passes through the first slide groove and the second slide groove as a connection, the connecting rod limits the up and down movement position of the upper cavity and the lower cavity, and then pulls the sliding rods at both ends, the sliding rods slide in the connecting rod to extend the position, rotates the limiting piece, and limits the left and right movement of the upper cavity and the lower cavity through the limiting piece, and finally assembles the connection between the input end waveguide coaxial converter and the output end waveguide coaxial converter through the connecting member, and it is more convenient and quick to assemble by sliding.

[0014] 2. By setting the first limiting ring, the first mounting ring, the first rotating rod and the first mounting plate, the first rotating rod is hollow to facilitate the passage of the line, the first mounting ring is fixed to the top of the first rotating rod, and the first mounting ring will rotate in the first limiting ring to limit the relative position of the input waveguide coaxial converter, so that the first mounting plate is combined and connected with the upper cavity and the lower cavity, wherein the direction of the first rotating rod can be adjusted while being connected to the input waveguide coaxial converter, and the sliding method can make it easier to assemble and disassemble.

[0015] 3. By setting the first adjusting gear and the second adjusting gear, the first adjusting gear can be moved up and down on the input waveguide coaxial converter and the second adjusting gear can be moved up and down on the output waveguide coaxial converter. After adjusting to the required angle, the first adjusting gear and the second adjusting gear are slid downward to the first tooth groove and the second gear groove for limiting. Since the output waveguide coaxial converter and the input waveguide coaxial converter are square, they cannot continue to rotate when the first tooth groove and the second gear groove limit the rotation, thereby achieving a fixing effect and completing quick assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

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

[0018] Figure 2 It is a structural schematic diagram of the lower cavity of the first embodiment of the utility model.

[0019] Figure 3 It is a structural schematic diagram of the upper cavity, the lower cavity, the connecting assembly, the first slide groove, the second slide groove and the connecting cap of the first embodiment of the utility model.

[0020] Figure 4 It is a structural schematic diagram of a connecting rod, a sliding rod and a limiting member in the first embodiment of the utility model.

[0021] Figure 5 It is a cross-sectional view of the input-end waveguide coaxial converter, the first limiting ring, the first mounting ring, the first rotating rod and the first mounting plate of the first embodiment of the utility model.

[0022] Figure 6 It is a cross-sectional view of the output end waveguide coaxial converter, the second limiting ring, the second mounting ring, the second rotating rod and the second mounting plate of the first embodiment of the utility model.

[0023] Figure 7 It is a schematic diagram of the overall structure of the second embodiment of the utility model.

[0024] Figure 8 It is an overall right side view of the second embodiment of the utility model.

[0025] 101-upper cavity, 102-lower cavity, 103-input end waveguide coaxial converter, 104-output end waveguide coaxial converter, 105-connecting assembly, 106-connecting rod, 107-sliding rod, 108-limiting piece, 110-first slide groove, 111-second slide groove, 112-connecting cap, 113-first limiting ring, 114-first mounting ring, 115-first rotating rod, 116-first mounting plate, 117-second limiting ring, 118-second mounting ring, 119-second rotating rod, 120-second mounting plate, 201-adjusting assembly, 202-first adjusting gear, 203-second adjusting gear, 204-first tooth groove, 205-second tooth groove. DETAILED DESCRIPTION

[0026] The first embodiment of the present application is:

[0027] See also Figure 1-Figure 6 ,in, Figure 1 The overall structural diagram of the first embodiment of the utility model is as follows: Figure 2 This is a schematic diagram of the lower cavity structure of the utility model. Figure 3It is a structural schematic diagram of the upper cavity, the lower cavity, the connecting assembly, the first slide groove, the second slide groove and the connecting cap of the utility model. Figure 4 It is a structural schematic diagram of the connecting rod, sliding rod and limiting member of the utility model. Figure 5 It is a cross-sectional view of the input-end waveguide coaxial converter, the first limiting ring, the first mounting ring, the first rotating rod and the first mounting plate of the utility model. Figure 6 It is a cross-sectional view of the output-end waveguide coaxial converter, the second limiting ring, the second mounting ring, the second rotating rod and the second mounting plate of the utility model.

[0028] The utility model provides a microwave frequency calibration tool, including an upper cavity 101, a lower cavity 102, an input-end waveguide-coaxial converter 103, an output-end waveguide-coaxial converter 104 and a connecting assembly 105, wherein the connecting assembly 105 includes a connecting rod 106, a sliding rod 107, a limiting member 108, and a connecting cap 112, a first limiting ring 113, a first mounting ring 114, a first rotating rod 115, a first mounting plate 116, a second limiting ring 117, a second mounting ring 118, a second rotating rod 119 and a second mounting plate 120. By changing the bolting method through the above-mentioned scheme, disassembly or assembly can be performed more quickly.

[0029] According to this specific embodiment, it includes an upper cavity 101, a lower cavity 102, an input end waveguide coaxial converter 103 and an output end waveguide coaxial converter 104, wherein the upper cavity 101 is located on one side of the lower cavity 102, the input end waveguide coaxial converter 103 is arranged on one side of the lower cavity 102, and the output end waveguide coaxial converter 104 is arranged on the side of the lower cavity 102 away from the input end waveguide coaxial converter 103. After the upper cavity 101 and the lower cavity 102 are buckled together, a square resonant cavity is formed inside, and the resonant cavities are parallel to each other in the longitudinal direction. The two inner walls in a row are both square, and the two inner walls parallel to each other in the transverse direction are both rectangular and have symmetrically distributed input coupling windows and output coupling windows respectively, which are used to connect the waveguide coaxial converter; the four longitudinal edges on the inner wall of the resonant cavity have rounded corners, so that the electromagnetic field of the resonant cavity is TE011 mode, and the specific structure and use method of the upper cavity 101, the lower cavity 102, the input end waveguide coaxial converter 103 and the output end waveguide coaxial converter 104 are recorded in the patent document with publication number CN103592510B, which is not within the protection scope of this application and will not be repeated here.

[0030] The upper cavity 101 has a first slide groove 110, and the first slide groove 110 is located on one side of the upper cavity 101. The lower cavity 102 has a second slide groove 111, and the second slide groove 111 is located on one side of the lower cavity 102. One end of the connecting rod 106 is slidably connected to the upper cavity 101 and the lower cavity 102, respectively, and is located between the first slide groove 110 and the second slide groove 111. The sliding rod 107 is located on the inner side of the connecting rod 106. The limiting member 108 is fixedly connected to the sliding rod 107 and is located on one side of the limiting member 108. The connecting member 109 is arranged on one side of the lower cavity 102. The connecting rod 106 passes through the first slide groove 110 and the second slide groove 111 as a connection, and the connecting rod limits the up and down movement position of the upper cavity 101 and the lower cavity 102, and then pulls the sliding rods 107 at both ends, and the sliding rods 107 slide in the connecting rod 106 to extend the position, and rotates the limit member 108 to limit the left and right movement of the upper cavity 101 and the lower cavity 102 through the limit member 108, and finally assembles the connection between the input end waveguide coaxial converter 103 and the output end waveguide coaxial converter 104 through the connecting member 109, and it is more convenient and quick to assemble by sliding.

[0031] Secondly, the connecting cap 112 is slidably connected to the upper cavity 101 and is located on one side of the upper cavity 101, wherein the input end waveguide coaxial converter 103 and the output end waveguide coaxial converter 104 are convex as a whole, and the other end is covered and fixed by the connecting cap 112 to complete the assembly.

[0032] At the same time, the first limiting ring 113 is fixedly connected to the input end waveguide coaxial converter 103 and is located on one side of the input end waveguide coaxial converter 103. The first mounting ring 114 is rotatably connected to the first limiting ring 113 and is located on one side of the first limiting ring 113. The first rotating rod 115 is fixedly connected to the first mounting ring 114 and is located on one side of the first mounting ring 114. The first mounting plate 116 is fixedly connected to the first rotating rod 115 and is located on one side of the first rotating rod 115. 115 is hollow to facilitate the passage of the line. The top of the first rotating rod 115 is fixed with the first mounting ring 114. The first mounting ring 114 will rotate in the first limiting ring 113 to limit the relative position of the input waveguide coaxial converter 103, so that the first mounting plate 116 is combined and connected with the upper cavity 101 and the lower cavity 102. The direction of the first rotating rod 115 can be adjusted while being connected to the input waveguide coaxial converter 103, and the sliding method can make it easier to assemble and disassemble.

[0033] In addition, the second limiting ring 117 is fixedly connected to the output end waveguide coaxial converter 104 and is located on one side of the output end waveguide coaxial converter 104. The second mounting ring 118 is rotatably connected to the second limiting ring 117 and is located on one side of the second limiting ring 117. The second rotating rod 119 is fixedly connected to the second mounting ring 118 and is located on one side of the second mounting ring 118. The second mounting plate 120 is fixedly connected to the second rotating rod 119 and is located on one side of the second rotating rod 119. 119 is hollow to facilitate the passage of the line. The second mounting ring 118 is fixed to the top of the second rotating rod 119. The second mounting ring 118 will rotate in the second limiting ring 117 to limit the relative position of the output waveguide coaxial converter 104, so that the second mounting plate 120 is combined and connected with the upper cavity 101 and the lower cavity 102. The second rotating rod 119 can be adjusted in direction while being connected to the output waveguide coaxial converter 104, and can be assembled and disassembled more conveniently by sliding.

[0034] When using the utility model, the protruding ends of the upper cavity 101 and the lower cavity 102 are connected through the connecting cap 112, and the other ends are connected through the connecting rod 106. The connecting rod 106 passes through the first slide groove 110 and the second slide groove 111 as a connection. The connecting rod 106 limits the up and down movement of the upper cavity 101 and the lower cavity 102, and then pulls the sliding rods 107 at both ends. The sliding rods 107 slide in the connecting rod 106 to extend the position, and the limiting member 108 is rotated to limit the left and right movement of the upper cavity 101 and the lower cavity 102. Finally, the first rotating rod 115 and the waveguide coaxial converter 103 passing through the input end are connected. The first rotating rod 115 is hollow to facilitate the passage of the line. The first mounting ring 114 is fixed on the top of the first rotating rod 115. The first mounting ring 114 will rotate in the first limiting ring 113 to limit the relative position of the input waveguide coaxial converter 103. The first mounting plate 116 combines and connects the upper cavity 101 and the lower cavity 102, so that the first rotating rod 115 can be connected to the input waveguide coaxial converter 103 while adjusting the direction. The second limiting ring 117, the second mounting ring 118, the second rotating rod 119, the second mounting plate 120 and the second rotating rod 119 at the other end are fixed by the same process operation, and can be more convenient to assemble and disassemble by sliding.

[0035] The second embodiment of the present application is:

[0036] Based on the first embodiment, please refer to Figure 7-Figure 8 ,in Figure 7 It is a schematic diagram of the overall structure of the second embodiment of the utility model. Figure 8 It is an overall right view of the second embodiment of the utility model. The microwave frequency calibration tool provided by the utility model also includes an adjustment component 201, and the adjustment component 201 includes a first adjustment gear 202 and a second adjustment gear 203.

[0037] For this specific embodiment, the first tooth groove 204 is located on one side of the first mounting plate 116, and the first adjusting gear 202 is slidably connected to the input-end waveguide coaxial converter 103 and is located on one side of the input-end waveguide coaxial converter 103. After adjusting to the required angle, the first adjusting gear 202 is slid downward to the first tooth groove 204 for limiting. The input-end waveguide coaxial converter 103 is square and cannot continue to rotate when the first tooth groove 204 restricts the rotation, thereby achieving a fixing effect and completing quick assembly.

[0038] In addition, the second tooth groove 205 is located on one side of the second mounting plate 116, and the second adjusting gear 203 is slidably connected to the output waveguide coaxial converter 104 and is located on one side of the output waveguide coaxial converter 104. After adjusting to the required angle, the second adjusting gear 203 is slid downward to the second tooth groove 205 for limiting. The output waveguide coaxial converter 104 is square and cannot continue to rotate when the second gear groove 205 limits the rotation, thereby achieving a fixing effect and completing quick assembly.

[0039] When using the utility model, the protruding ends of the upper cavity 101 and the lower cavity 102 are connected through the connecting cap 112, and the other ends are connected through the connecting rod 106. The connecting rod 106 passes through the first slide groove 110 and the second slide groove 111 as a connection. The connecting rod 106 limits the up and down movement of the upper cavity 101 and the lower cavity 102, and then pulls the sliding rods 107 at both ends. The sliding rods 107 slide in the connecting rod 106 to extend the position, and the limiting member 108 is rotated to limit the left and right movement of the upper cavity 101 and the lower cavity 102. Finally, the first rotating rod 115 passes through the input end waveguide coaxial converter 103. The first rotating rod 115 is hollow to facilitate the passage of the line. The top of the first rotating rod 115 is fixed with the first rotating rod 115. A mounting ring 114, the first mounting ring 114 will rotate in the first limiting ring 113 to limit the relative position of the input end waveguide coaxial converter 103, so that the first mounting plate 116 combines and connects the upper cavity 101 and the lower cavity 102, so that the first rotating rod 115 can adjust the direction while being connected to the input end waveguide coaxial converter 103, and then slide the first adjusting gear 202 downward, and insert the first adjusting gear 202 into the first tooth groove 204 for limiting, and the second limiting ring 117, the second mounting ring 118, the second rotating rod 119, the second mounting plate 120 and the second rotating rod 119 at the other end are adjusted by the same process operation, and then fixed by the cooperation of the second adjusting gear 203 and the second tooth groove 205, and the sliding method can make it easier to assemble and disassemble.

[0040] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A microwave frequency calibration tool, comprising an upper cavity, a lower cavity, an input waveguide coaxial converter and an output waveguide coaxial converter, wherein the upper cavity is located on one side of the lower cavity, the input waveguide coaxial converter is arranged on one side of the lower cavity, and the output waveguide coaxial converter is arranged on a side of the lower cavity away from the input waveguide coaxial converter, characterized in that: Also included are connection components; The connecting assembly comprises a connecting rod, a sliding rod and a limiting member; The upper cavity has a first slide groove, which is located on one side of the upper cavity; the lower cavity has a second slide groove, which is located on one side of the lower cavity; the connecting rod is slidingly connected to the upper cavity and the lower cavity respectively, and is located between the first slide groove and the second slide groove; the sliding rod is located on the inner side of the connecting rod; the limit member is fixedly connected to the sliding rod and is located on one side of the sliding rod.

2. A microwave frequency calibration tool as claimed in claim 1, characterized in that: The connection assembly further comprises a connection cap, which is slidably connected to the upper cavity and is located at one side of the upper cavity.

3. A microwave frequency calibration tool as claimed in claim 2, characterized in that: The connecting assembly also includes a first limiting ring, a first mounting ring, a first rotating rod and a first mounting plate. The first limiting ring is fixedly connected to the input waveguide to coaxial converter and is located on one side of the input waveguide to coaxial converter. The first mounting ring is rotatably connected to the first limiting ring and is located on one side of the first limiting ring. The first rotating rod is fixedly connected to the first mounting ring and is located on one side of the first mounting ring. The first mounting plate is fixedly connected to the first rotating rod and is located on one side of the first rotating rod.

4. A microwave frequency calibration tool as claimed in claim 3, characterized in that: The connecting assembly also includes a second limiting ring, a second mounting ring, a second rotating rod and a second mounting plate, the second limiting ring is fixedly connected to the output end waveguide to coaxial converter and is located on one side of the output end waveguide to coaxial converter, the second mounting ring is rotatably connected to the second limiting ring and is located on one side of the second limiting ring, the second rotating rod is fixedly connected to the second mounting ring and is located on one side of the second mounting ring, and the second mounting plate is fixedly connected to the second rotating rod and is located on one side of the second rotating rod.

5. A microwave frequency calibration tool as claimed in claim 4, characterized in that: The microwave frequency calibration tool also includes an adjustment component, which includes a first adjustment gear. The first mounting plate has a first tooth groove, and the first tooth groove is located on one side of the first mounting plate. The first adjustment gear is slidably connected to the input end waveguide coaxial converter and is located on one side of the input end waveguide coaxial converter.

6. A microwave frequency calibration tool as claimed in claim 5, characterized in that: The adjustment assembly also includes a second adjustment gear, the second mounting plate has a second tooth groove, the second tooth groove is located on one side of the second mounting plate, and the second adjustment gear is slidably connected to the output end waveguide coaxial converter and is located on one side of the output end waveguide coaxial converter.

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