Microwave anechoic chamber measurement supporting rotary table with shockproof structure

Abstract

The utility model discloses a microwave anechoic chamber measurement supporting rotary table with a shockproof structure, which comprises a rotary table and a bottom ring which are arranged in a microwave anechoic chamber, the bottom ring is fixed on the ground of the microwave anechoic chamber through bolts, a plurality of supporting columns are arranged on one end face of the rotary table facing the bottom ring, and universal wheels are arranged at the other ends of the supporting columns. The universal wheels are sleeved with supporting cylinders, a plurality of channels allowing the universal wheels and the supporting cylinders to pass through are formed in the outer circle of the bottom ring, a top ring is installed on the end face, facing the bottom ring, of the rotary table, and the top ring is sleeved with a connecting ring. The device is simple in structure, the connecting ring can rotate downwards and is in threaded connection with the bottom ring, the extrusion part can push the supporting barrel to descend along with descending of the connecting ring until the supporting barrel abuts against the ground, the necking end of the supporting barrel abuts against the top face of a support on the universal wheel, and therefore the supporting barrel is pressed on the ground, and the supporting barrel is not prone to falling. And the rotary table can be axially positioned through the bottom ring, the connecting ring and the top ring, so that the test stability is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of microwave darkroom testing, in particular to a microwave darkroom measurement support turntable with a shockproof structure. Background Art

[0002] Microwave anechoic chambers are commonly used to test and measure the performance of microwave components, antennas, communications equipment, and other wireless communication systems. Accurate testing and measurement in microwave anechoic chambers often requires the use of a rotating test fixture, commonly called a "rotating table" or "turntable." This fixture should possess precise rotation capabilities, allowing the object under test to be rotated both horizontally and vertically. This allows testers to simulate signal reception or radiation in different directions.

[0003] However, current turntables generally have universal wheels installed underneath, which are used to move the turntable into the microwave darkroom. However, the universal wheels are not connected to the floor of the microwave darkroom. During the rotation of the object to be tested, the turntable will shake and vibrate slightly, resulting in a decrease in test accuracy. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a microwave darkroom measurement support turntable with a shock-proof structure, which is movable and can also be connected to the ground, avoiding vibration and swing during the use of the turntable, so as to solve the problems raised in the above-mentioned background technology.

[0005] The utility model is realized through the following technical solutions: a microwave darkroom measurement support turntable with a shockproof structure, comprising a turntable and a bottom ring arranged inside the microwave darkroom, the bottom ring being fixed to the floor of the microwave darkroom by bolts, a plurality of support columns being installed on one end face of the turntable facing the bottom ring, universal wheels being installed on the other ends of the support columns, the universal wheels being extended to the interior of the bottom ring and being arranged in contact with the ground, support tubes being sleeved on the outside of the universal wheels, a plurality of channels for the universal wheels and the support tubes to pass through being provided on the outer ring of the bottom ring, a top ring being installed on one end face of the turntable facing the bottom ring, and a connecting ring being sleeved on the outside of the top ring.

[0006] As a preferred technical solution, a first external thread is provided on the outer ring surface of the top ring, a first internal thread is provided on the inner ring surface of the connecting ring, the connecting ring is meshed with the first external thread on the top ring through the first internal thread, a second external thread is provided on the outer ring surface of the connecting ring, and a second internal thread matching the second external thread is provided on the inner ring surface of the bottom ring.

[0007] As a preferred technical solution, one end of the support tube is bent outward to form a pressure-bearing portion of an annular structure, and one end of the second connecting ring is bent inward to form an extrusion portion of an annular structure, and the extrusion portion is arranged above the multiple pressure-bearing portions.

[0008] As an optimal technical solution, the other end of the support tube is set to be inwardly contracted and in contact with the outer wall surface of the support column. The outer wall surface of the support column is vertically provided with a positioning groove, and the inner wall surface of the opening at the other end of the support tube is protruded to form a positioning part, and the positioning part is slidably set in the positioning groove.

[0009] As a preferred technical solution, a compression spring is sleeved on the outside of the support column, one end of the compression spring is installed on the turntable, and the other end is installed on the support tube.

[0010] As a preferred technical solution, a plurality of gripping rods are installed in an annular structure on one end surface of the connecting ring.

[0011] The beneficial effects of the present invention are as follows: the present invention has a simple structure, the turntable can be moved along the channel to the inside of the bottom ring or moved out of the bottom ring; during testing, the connecting ring can be rotated downward and threadedly connected to the bottom ring; and as the connecting ring descends, the extrusion portion can push the support tube down until the support tube contacts the ground, and the shrinking end of the support tube contacts the top surface of the bracket on the universal wheel, thereby pressing the support tube to the ground; and the turntable can be axially positioned by the bottom ring, the connecting ring and the top ring to ensure the stability of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a side view of the utility model;

[0015] Figure 3 It is a bottom view of the utility model;

[0016] Figure 4 This is a top view of the utility model after removing the turntable.

[0017] Among them, 1. bottom ring; 2. turntable; 3. channel; 4. top ring; 5. connecting ring; 6. grip rod; 7. support tube; 8. pressure part; 9. universal wheel; 10. extrusion part; 11. compression spring; 12. positioning groove; 13. support column. DETAILED DESCRIPTION

[0018] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0019] All features disclosed in this specification, or all steps in the disclosed methods or processes, except mutually exclusive features and / or steps, can be combined in any manner.

[0020] Any feature disclosed in this specification (including any appended claims, abstract and drawings), unless otherwise stated, may be replaced by other equivalent or similar features. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0021] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, the utility model is a microwave darkroom measurement support turntable with a shock-proof structure, comprising a turntable 2 and a bottom ring 1 arranged inside the microwave darkroom, the bottom ring 1 being fixed to the floor of the microwave darkroom by bolts, a plurality of support columns 13 being installed on one end face of the turntable 2 facing the bottom ring 1, and a universal wheel 9 being installed on the other end of the support column 13, the universal wheel 9 being extended to the interior of the bottom ring 1 and being arranged in contact with the ground, the outside of the universal wheel 9 being sleeved with a support tube 7, the outer ring of the bottom ring 1 being provided with a plurality of channels 3 for the universal wheel 9 and the support tube 7 to pass through, a top ring 4 being installed on one end face of the turntable 2 facing the bottom ring 1, and a connecting ring 5 being sleeved on the outside of the top ring 4.

[0022] In this embodiment, a first external thread is provided on the outer ring surface of the top ring 4, and a first internal thread is provided on the inner ring surface of the connecting ring 5. The connecting ring 5 is meshed with the first external thread on the top ring 4 through the first internal thread. A second external thread is provided on the outer ring surface of the connecting ring 5, and a second internal thread matching the second external thread is provided on the inner ring surface of the bottom ring 1.

[0023] In this embodiment, one end of the support tube 7 bends outward to form a pressure-bearing portion 8 of an annular structure, and one end of the second connecting ring 5 bends inward to form an extrusion portion 10 of an annular structure. The extrusion portion 10 is arranged above the multiple pressure-bearing portions 8.

[0024] In the embodiment, the other end of the supporting cylinder 7 is inwardly tapered and in contact with the outer wall surface of the supporting column 13, and the outer wall surface of the supporting column 13 is vertically provided with a positioning groove 12, and the inner wall surface of the other end of the supporting cylinder 7 is outwardly protruded to form a positioning part, and the positioning part is slidably arranged in the positioning groove 12, so that the supporting cylinder is positioned and can only move up and down along the positioning groove after being pressed, thereby avoiding rotation of the supporting cylinder.

[0025] In the embodiment, the supporting column 13 is externally provided with a compression spring 11, one end of the compression spring 11 is mounted on the rotary table 2, and the other end is mounted on the supporting cylinder 7, and after the connecting ring is upwardly rotated, the supporting cylinder can be lifted upward by the rebound of the compression spring, so that the rollers on the universal wheels can be exposed to facilitate pushing of the rotary table.

[0026] In the embodiment, a plurality of handle bars 6 are annularly arranged on one end surface of the connecting ring 5, which facilitates rotation of the connecting ring, and after the connecting ring is higher than the bottom ring, the universal wheels on the rotary table can be smoothly moved out of the passage.

[0027] In use, the rotary table can be moved by the universal wheels and can be pushed along the passage into the inside of the bottom ring, after entering, the connecting ring can be rotated by the handle bar, so that the connecting ring moves downward along the thread until the connecting ring is threadedly connected with the bottom ring, and with the descending of the connecting ring, the pressing part on the connecting ring can press the pressure receiving part, so that the supporting cylinder moves downward along the positioning groove until the pressure receiving part on the supporting cylinder is in contact with the ground, and one end of the tapered supporting cylinder is in contact with the support on the universal wheel, so that the rotary table can be placed on the ground, and the rotary table can be axially positioned by the bottom ring, the connecting ring and the top ring to ensure stability of the test.

[0028] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any change or replacement without creative labor should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be limited by the protection scope defined in the claims.

Claims

1. A microwave darkroom measurement support turntable with a shockproof structure, characterized by: The invention comprises a turntable (2) and a bottom ring (1) arranged inside a microwave darkroom, wherein the bottom ring (1) is fixed to the floor of the microwave darkroom by bolts, a plurality of support columns (13) are installed on one end surface of the turntable (2) facing the bottom ring (1), a universal wheel (9) is installed on the other end of each support column (13), the universal wheel (9) extends to the inside of the bottom ring (1) and is arranged in contact with the ground, a support cylinder (7) is sleeved on the outside of each universal wheel (9), a plurality of channels (3) for the universal wheel (9) and the support cylinder (7) to pass through are provided on the outer ring of the bottom ring (1), a top ring (4) is installed on one end surface of the turntable (2) facing the bottom ring (1), and a connecting ring (5) is sleeved on the outside of the top ring (4).

2. The microwave darkroom measurement support turntable with a shockproof structure according to claim 1, characterized in that: A first external thread is provided on the outer ring surface of the top ring (4), a first internal thread is provided on the inner ring surface of the connecting ring (5), the connecting ring (5) is meshed and connected with the first external thread on the top ring (4) via the first internal thread, a second external thread is provided on the outer ring surface of the connecting ring (5), and a second internal thread matching the second external thread is provided on the inner ring surface of the bottom ring (1).

3. The microwave darkroom measurement support turntable with a shockproof structure according to claim 1, characterized in that: One end of the support tube (7) is bent outward to form a pressure-bearing portion (8) of an annular structure, and one end of the second connecting ring (5) is bent inward to form an extrusion portion (10) of an annular structure. The extrusion portion (10) is arranged above the plurality of pressure-bearing portions (8).

4. The microwave darkroom measurement support turntable with a shockproof structure according to claim 1, characterized in that: The other end of the support tube (7) is set to be inwardly contracted and contacts the outer wall surface of the support column (13). The outer wall surface of the support column (13) is vertically provided with a positioning groove (12). The inner wall surface of the opening at the other end of the support tube (7) is protruded to form a positioning part, and the positioning part is slidably set in the positioning groove (12).

5. The microwave darkroom measurement support turntable with a shockproof structure according to claim 1, characterized in that: The outside of the support column (13) is sleeved with a compression spring (11), one end of the compression spring (11) is installed on the turntable (2), and the other end is installed on the support cylinder (7).

6. The microwave darkroom measurement support turntable with a shockproof structure according to claim 1, characterized in that: A plurality of gripping rods (6) are mounted on one end surface of the connecting ring (5) in an annular structure.

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