Millimeter wave radar testing device

Abstract

The utility model discloses a millimeter wave radar testing device, which relates to the technical field of radar testing and comprises an annular fixing frame, a supporting column, a driving motor, a rotating plate, a fixing shell, a handle, a pull rod, an abutting plate, a compression spring and a millimeter wave radar body, and a plurality of sliding grooves are formed in the top of the annular fixing frame. During use, the millimeter wave radar is driven by the driving motor to rotate, different angles are tested, when the distance of the grid baffle needs to be adjusted, a plurality of linkage shafts are driven by the control assembly to rotate synchronously, and then a plurality of screws are driven to rotate synchronously under the meshing action of a plurality of first bevel gears and a plurality of second bevel gears. Therefore, the plurality of rectangular sliding plates are driven to synchronously move close to or away from the axis under the action of the threads, so that the plurality of grid baffles are synchronously adjusted, and the influence of different movement distances on a test result is prevented. When the grid baffle needs to be disassembled and replaced, the grid baffle can be disassembled and assembled through the clamping assemblies.

Description

Technical Field

[0001] The utility model relates to the technical field of radar testing, in particular to a millimeter wave radar testing device. Background Art

[0002] Millimeter-wave radar requires various data tests during the research and development stage. The current common method is to assemble the millimeter-wave radar on a test device and then complete the test. Among them, the detection angle and detection distance tests are necessary test contents for the performance of the millimeter-wave radar itself.

[0003] In the prior art, a patent with publication number CN220289840U discloses a millimeter-wave radar test device, which can detect multiple groups of baffles of different materials at one time to test the penetration attenuation effect of the millimeter-wave radar body on objects of different materials. However, in actual use, it cannot adjust the distance between the baffle and the millimeter-wave radar, making it difficult to test the detection distance and having poor functionality. In view of the above problems, a millimeter-wave radar test device is proposed. Utility Model Content

[0004] The purpose of the present application is to provide a millimeter-wave radar testing device to solve the problems raised in the above-mentioned background technology that, in actual use, the distance between the baffle plate and the millimeter-wave radar cannot be adjusted, the detection distance is difficult to test, and the functionality is poor.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a millimeter-wave radar testing device, comprising an annular fixing frame, a support column handle, a pull rod, a tightening plate, a compression spring, and a millimeter-wave radar body, wherein the support column, the drive motor, the rotating plate, the fixed shell, the handle, the pull rod, the tightening plate, the compression spring, and the millimeter-wave radar body are all arranged on the top of the annular fixing frame, a plurality of slide grooves are provided on the top of the annular fixing frame, an annular cavity is provided in the annular fixing frame, a plurality of screws are rotatably installed on the side inner walls of the plurality of slide grooves, the other ends of the plurality of screws extend into the annular cavity and are connected through a linkage assembly, and the linkage assembly The component comprises a plurality of linkage shafts, both ends of the plurality of linkage shafts are rotatably mounted on the relative inner walls of the annular cavity, a plurality of linkage shafts are fixedly sleeved with a first bevel gear, a plurality of screw rods are fixedly sleeved with a second bevel gear, a plurality of the first bevel gears are respectively meshed and mounted with a plurality of the second bevel gears, the plurality of linkage shafts are connected via a transmission unit, a control component adapted to the transmission unit is arranged in the annular cavity, a plurality of screw rods are threadedly mounted with a rectangular slide, a plurality of the rectangular slide rods are provided with a mounting plate on their sides, an arc groove is provided on the top of the plurality of mounting plates, and a baffle plate is mounted in the plurality of arc grooves via a clamping component.

[0006] Preferably, the transmission unit includes multiple gears and an annular internal rack, the multiple gears are fixedly sleeved on the multiple linkage shafts respectively, the annular internal rack is rotatably installed on the circumferential inner wall of the annular cavity, and the multiple gears are meshed with the annular internal rack.

[0007] Preferably, the control component includes a rotating shaft, the bottom end of which is rotatably mounted on the bottom inner part of the annular cavity, the top end of which extends to the outside of the annular fixed frame and is provided with a rotating unit, a gear is fixedly sleeved on the rotating shaft, the gear is meshed with the annular inner rack, and a limiting unit adapted to the rotating shaft is provided on the circumferential inner wall of the annular cavity.

[0008] Preferably, the rotating unit comprises a crank, and the bottom end of the crank is fixedly connected to the top end of the rotating shaft.

[0009] Preferably, the limiting unit comprises a locking bolt, a threaded hole is provided on the inner wall of the circumferential side of the annular cavity, the locking bolt is threadedly installed in the threaded hole, and the locking bolt is adapted to the rotating shaft.

[0010] Preferably, the clamping assembly includes two pin shafts, two pin grooves are provided on the side of the mounting plate, and two pin holes are opened on the side of the baffle plate. One ends of the two pin shafts are respectively slidably installed in the two pin grooves and the two pin holes, and the other ends of the two pin shafts are jointly installed with a pull ring, and an elastic unit is provided on the side of the pull ring.

[0011] Preferably, the elastic unit comprises two return springs, one end of the two return springs is fixedly mounted on the side of the mounting plate, and the other end of the two return springs is fixedly mounted on the side of the pull ring.

[0012] In summary, the technical effects and advantages of the utility model are:

[0013] 1. In the utility model, when in use, the millimeter-wave radar is driven to rotate by a driving motor to test different angles. When the distance of the baffle plate needs to be adjusted, the multiple linkage shafts are driven to rotate synchronously through the control component, and then the multiple screws are driven to rotate synchronously under the meshing action of the multiple first bevel gears and the multiple second bevel gears, so that the multiple rectangular slides are driven to move synchronously toward or away from the axis under the action of the thread, thereby realizing the distance adjustment of the baffle plate. The adjustment operation is convenient, and multiple baffle plates can be adjusted synchronously to prevent their different movement distances from affecting the test results.

[0014] 2. In the utility model, when the baffle plate needs to be disassembled, it is only necessary to pull the pull ring to drive the two pin shafts to move horizontally synchronously, so that the two pin shafts are released from the limit of the two pin holes, and the baffle plate can be removed from the mounting plate. The whole disassembly process is simple and convenient, and when the limit on the pull ring is released, the elastic action of the two reset springs can drive the pull ring and the two pin shafts to reset synchronously, thereby fixing the baffle plate, thereby improving the stability of the installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] 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 will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of a millimeter wave radar testing device in an embodiment of the present application;

[0017] Figure 2 This is a partially cutaway enlarged structural schematic diagram of the annular fixing frame in the embodiment of the present application;

[0018] Figure 3 This is a schematic diagram of the partial cross-section structure of the annular frame and the mounting plate in the embodiment of the present application;

[0019] Figure 4 for Figure 3 Enlarged structural diagram at A in the middle.

[0020] In the figure: 1. annular fixing frame; 2. millimeter wave radar body; 3. screw; 4. linkage shaft; 5. first bevel gear; 6. second bevel gear; 7. rotating shaft; 8. gear; 9. annular inner rack; 10. crank handle; 11. locking bolt; 12. rectangular slide plate; 13. mounting plate; 14. baffle plate; 15. pin shaft; 16. pull ring; 17. reset spring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example: Reference Figure 1-4The millimeter-wave radar test device shown in the figure includes an annular fixing frame 1, a support column, a driving motor, a rotating plate, a fixed shell, a handle, a pull rod, a tightening plate, a compression spring, and a millimeter-wave radar body 2. The support column, the driving motor, the rotating plate, the fixed shell, the handle, the pull rod, the tightening plate, the compression spring, and the millimeter-wave radar body 2 are all arranged on the top of the annular fixing frame 1. It should be noted that in this embodiment, the installation method of the support column, the driving motor, the rotating plate, the fixed shell, the handle, the pull rod, the tightening plate, the compression spring, and the millimeter-wave radar body 2 can refer to the technical content adopted in a millimeter-wave radar test device disclosed in a Chinese patent with publication number CN220289840U in the prior art, which will not be repeated here. A plurality of slide grooves are provided on the top of the annular fixing frame 1, and an annular cavity is provided in the annular fixing frame 1. Screw rods 3 are rotatably installed on the side inner walls of each slide groove, and the other ends of multiple screw rods 3 extend into the annular cavity and are connected through a linkage component. The linkage component includes multiple linkage shafts 4, and both ends of multiple linkage shafts 4 are rotatably installed on the relative inner walls of the annular cavity. First bevel gears 5 are fixedly sleeved on multiple linkage shafts 4, and second bevel gears 6 are fixedly sleeved on multiple screw rods 3. Multiple first bevel gears 5 are respectively meshed and installed with multiple second bevel gears 6. Multiple linkage shafts 4 are connected through a transmission unit, and a control component compatible with the transmission unit is arranged in the annular cavity. Rectangular slides 12 are threadedly installed on multiple screw rods 3, and mounting plates 13 are arranged on the sides of multiple rectangular slides 12. Arc grooves are opened on the tops of multiple mounting plates 13, and baffle plates 14 are clamped and installed in multiple arc grooves through clamping components.

[0023] By means of the above structure, when in use, the millimeter wave radar is driven to rotate by the driving motor to test different angles. When the distance of the baffle plate 14 needs to be adjusted, the multiple linkage shafts 4 are driven to rotate synchronously through the control component, and then the multiple screws 3 are driven to rotate synchronously under the meshing action of the multiple first bevel gears 5 and the multiple second bevel gears 6, so that the multiple rectangular slides 12 are driven to move synchronously toward or away from the axis under the action of the thread, so as to achieve the distance adjustment of the baffle plate 14, and the adjustment operation is convenient, and multiple baffle plates 14 can be adjusted synchronously to prevent their different movement distances from affecting the test results. When the baffle plate 14 needs to be disassembled and replaced, the disassembly and installation operations of the baffle plate 14 can be achieved through the clamping assembly, which is simple and convenient to operate, and has strong installation stability.

[0024] like Figure 4 As shown, the transmission unit includes a plurality of gears 8 and an annular internal rack 9. The plurality of gears 8 are fixedly sleeved on a plurality of linkage shafts 4 respectively. The annular internal rack 9 is rotatably installed on the circumferential inner wall of the annular cavity. The plurality of gears 8 are meshed with the annular internal rack 9. The advantage of such an arrangement is that, through the arrangement of the plurality of gears 8 and the annular internal rack 9, the meshing action of the gears 8 and the annular internal rack 9 can drive the plurality of linkage shafts 4 to rotate synchronously.

[0025] Specifically, when the annular inner rack 9 rotates, the meshing action of the annular inner rack 9 and the multiple gears 8 can drive the multiple gears 8 to rotate synchronously, and then drive the multiple linkage shafts 4 to rotate synchronously, which is convenient for synchronous adjustment of the multiple rectangular slides 12 and prevents the different adjustment distances from affecting the test results.

[0026] like Figure 2 As shown, the control component includes a rotating shaft 7, the bottom end of which is rotatably mounted on the bottom inner part of the annular cavity, the top end of which extends to the outside of the annular fixing frame 1 and is provided with a rotating unit, a gear 8 is fixedly sleeved on the rotating shaft 7, the gear 8 is meshed with an annular inner rack 9, and a limiting unit adapted to the rotating shaft 7 is provided on the circumferential inner wall of the annular cavity. The advantage of such a setting is that by fixing the gear 8 on the rotating shaft 7, when the rotating shaft 7 rotates, the meshing action of the gear 8 and the annular inner rack 9 can drive the remaining multiple gears 8 to rotate synchronously.

[0027] Specifically, when the rotating shaft 7 rotates, it drives the gear 8 to rotate synchronously, and then drives the remaining multiple gears 8 to rotate synchronously through the meshing action of the gear 8 and the annular inner rack 9, thereby driving the multiple linkage shafts 4 to rotate synchronously.

[0028] like Figure 2 As shown, the rotating unit includes a crank 10, the bottom end of the crank 10 is fixedly connected to the top end of the rotating shaft 7. The advantage of such an arrangement is that the staff can conveniently rotate the rotating shaft 7 through the arrangement of the crank 10.

[0029] Specifically, when the staff needs to rotate the rotating shaft 7, the rotating shaft 7 can be driven to rotate synchronously by rotating the crank 10, which is simple to operate, labor-saving and highly practical.

[0030] like Figure 2 As shown, the limiting unit includes a locking bolt 11, and a threaded hole is opened on the inner wall of the circumferential side of the annular cavity. The locking bolt 11 is threadedly installed in the threaded hole. The locking bolt 11 is adapted to the rotating shaft 7. The advantage of such a setting is that through the setting of the locking bolt 11, the limiting function of the rotating shaft 7 can be realized to prevent the rotating shaft 7 from rotating during the toilet process.

[0031] Specifically, after the baffle plate 14 is adjusted to a suitable position, the locking bolt 11 is rotated to make it contact with the shaft 7, so as to realize the limiting function of the shaft 7 and prevent the shaft 7 from rotating during the test and affecting the test stability.

[0032] like Figure 4As shown, the snap-on assembly includes two pin shafts 15, two pin grooves are provided on the side of the mounting plate 13, and two pin holes are opened on the side of the baffle plate 14. One ends of the two pin shafts 15 are slidably installed in the two pin grooves and the two pin holes respectively, and a pull ring 16 is commonly installed at the other ends of the two pin shafts 15. An elastic unit is provided on the side of the pull ring 16. The advantage of such an arrangement is that through the arrangement of the two pin shafts 15, the baffle plate 14 can be conveniently fixed and disassembled, and the stability is relatively strong.

[0033] Specifically, when the baffle plate 14 needs to be disassembled, it is only necessary to pull the pull ring 16 to drive the two pin shafts 15 to move horizontally synchronously, so that the two pin shafts 15 are released from the limit of the two pin holes, and the baffle plate 14 can be disassembled from the mounting plate 13. The whole disassembly process is simple and convenient.

[0034] like Figure 4 As shown, the elastic unit includes two reset springs 17, one end of the two reset springs 17 is fixedly mounted on the side of the mounting plate 13, and the other end of the two reset springs 17 is fixedly mounted on the side of the pull ring 16. The advantage of such an arrangement is that, through the arrangement of the two reset springs 17, after the limit on the pull ring 16 is released, the elastic action of the reset springs 17 can drive the pull ring 16 and the two pins 15 to achieve the reset function.

[0035] Specifically, when the limit on the pull ring 16 is released, the pull ring 16 and the two pins 15 can be driven to reset synchronously under the elastic action of the two reset springs 17, thereby fixing the baffle plate 14 and improving the stability of the installation.

[0036] Finally, it should be noted that the above is only 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 can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A millimeter wave radar testing device, comprising an annular fixing frame (1), a support column, a driving motor, a rotating plate, a fixing shell, a handle, a pull rod, a clamping plate, a compression spring, and a millimeter wave radar body (2), wherein the support column, the driving motor, the rotating plate, the fixing shell, the handle, the pull rod, the clamping plate, the compression spring, and the millimeter wave radar body (2) are all arranged on the top of the annular fixing frame (1), characterized in that: A plurality of slide grooves are provided on the top of the annular fixing frame (1), an annular cavity is provided in the annular fixing frame (1), a plurality of screw rods (3) are rotatably mounted on the inner walls of the side portions of the slide grooves, the other ends of the plurality of screw rods (3) extend into the annular cavity and are connected via a linkage assembly, the linkage assembly comprises a plurality of linkage shafts (4), both ends of the plurality of linkage shafts (4) are rotatably mounted on the opposite inner walls of the annular cavity, a plurality of linkage shafts (4) are fixedly sleeved with a first bevel gear (5), and a plurality of screw rods (3) are fixedly sleeved with a second bevel gear (6). Bevel gear (6), multiple first bevel gears (5) are respectively meshed and installed with multiple second bevel gears (6), multiple linkage shafts (4) are connected through a transmission unit, a control component adapted to the transmission unit is arranged in the annular cavity, multiple screw rods (3) are threadedly installed with rectangular slides (12), multiple sides of the rectangular slides (12) are arranged with mounting plates (13), multiple tops of the mounting plates (13) are opened with arc grooves, and multiple arc grooves are clamped with baffle plates (14) through clamping components.

2. A millimeter wave radar testing device according to claim 1, characterized in that: The transmission unit comprises a plurality of gears (8) and an annular inner rack (9); the plurality of gears (8) are respectively fixedly sleeved on a plurality of linkage shafts (4); the annular inner rack (9) is rotatably mounted on the circumferential inner wall of the annular cavity; and the plurality of gears (8) are all meshedly mounted with the annular inner rack (9).

3. A millimeter wave radar testing device according to claim 2, characterized in that: The control assembly comprises a rotating shaft (7), the bottom end of the rotating shaft (7) is rotatably mounted on the bottom inner part of the annular cavity, the top end of the rotating shaft (7) extends to the outside of the annular fixing frame (1) and is provided with a rotating unit, a gear (8) is fixedly sleeved on the rotating shaft (7), the gear (8) is meshedly mounted with the annular inner rack (9), and a limiting unit adapted to the rotating shaft (7) is provided on the circumferential inner wall of the annular cavity.

4. A millimeter wave radar testing device according to claim 3, characterized in that: The rotating unit comprises a crank (10), the bottom end of the crank (10) being fixedly connected to the top end of the rotating shaft (7).

5. The millimeter wave radar testing device according to claim 3, characterized in that: The limiting unit comprises a locking bolt (11), a threaded hole is provided on the inner wall of the peripheral side of the annular cavity, the locking bolt (11) is threadedly installed in the threaded hole, and the locking bolt (11) is compatible with the rotating shaft (7).

6. A millimeter wave radar testing device according to claim 1, characterized in that: The clamping assembly comprises two pin shafts (15), two pin grooves are arranged on the side of the mounting plate (13), two pin holes are opened on the side of the baffle plate (14), one end of the two pin shafts (15) is slidably installed in the two pin grooves and the two pin holes respectively, and a pull ring (16) is installed together at the other end of the two pin shafts (15), and an elastic unit is arranged on the side of the pull ring (16).

7. A millimeter wave radar testing device according to claim 6, characterized in that: The elastic unit comprises two return springs (17), one end of the two return springs (17) is fixedly mounted on the side of the mounting plate (13), and the other end of the two return springs (17) is fixedly mounted on the side of the pull ring (16).

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