Multi-dimensional test supporting table

Abstract

The invention discloses a multi-dimensional test supporting table, and relates to the technical field of test equipment, and the multi-dimensional test supporting table comprises a lifting platform, a base is fixed on the lifting platform, a rotating disc is rotatably installed on the base, a protruding unit is fixed on the rotating disc, and a trigger unit is movably installed on the base. The trigger unit has a first stroke and a second stroke which are opposite to each other, the first stroke and the second stroke are each provided with a position sensor fixed to the base, and the position sensors switch the rotating direction of the rotating disc when sensing the trigger unit. The protruding unit can provide driving force for movement of the triggering unit on the first stroke and the second stroke along with rotation of the rotating disc, the rotating stroke of the rotating disc is not limited by two sensors any more, the rotating disc can deflect by more than 360 degrees, and therefore the testing blind area of a tested object can be further eliminated, and the testing accuracy of the tested object is improved. And the comprehensiveness of the test result is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of test equipment, and particularly to a multi-dimensional test support platform. Background Art

[0002] Some communication devices such as antennas (e.g., routers, etc.) need to perform corresponding signal tests in a microwave anechoic chamber, and a support platform for supporting the object to be tested is often provided in the microwave anechoic chamber, so that the object to be tested is in a specific position in the microwave anechoic chamber;

[0003] In the prior art, for example, the Chinese patent publication number is: CN210037896U, and the patent name is "a test bench for an anechoic chamber with an adjustment function". This patent includes "a base, two vertically arranged support plates are welded at both ends of the top of the base, a vertically arranged sliding groove is opened in the middle of the two support plates, a horizontally arranged linkage plate is arranged above the base, both ends of the linkage plate are slidably sleeved inside the sliding groove, two vertically arranged threaded columns are rotatably connected to both sides of the top of the base, and sleeves are threadedly sleeved on the outer walls of the two threaded columns. The sleeves are embedded in the inner wall of the linkage plate, and the height of the test bench can be adjusted, and the angle of the test bench can be adjusted";

[0004] In practice, in order to improve the comprehensiveness and effectiveness of test results, it is usually necessary for the object under test to rotate horizontally to a certain extent during the test. However, since corresponding transmission cables are connected to the object under test, the turntable cannot rotate continuously in the same direction. Currently, a common method is to set a turntable for supporting the object under test on a lifting platform, and a position sensor is provided at each of the starting position and the ending position of the turntable, so that the turntable reciprocates and deflects between the two position sensors;

[0005] However, the disadvantage of the existing solution is that since the rotation path of the turntable is circular arc-shaped, the rotation stroke of the turntable is limited by the two sensors. No matter how the two sensors are arranged, the rotation angle of the turntable is always less than 360 degrees, so that there is always a test blind area for the object under test on the turntable, resulting in incomplete test results. Summary of the Invention

[0006] The purpose of the present invention is to provide a multi-dimensional test support platform to solve the deficiencies in the above-mentioned prior art.

[0007] To achieve the above purpose, the present invention provides the following technical solutions:

[0008] A multi-dimensional test support platform, comprising a lifting platform, a base seat is fixed on the lifting platform, a rotating disk is rotatably installed on the base seat, a protruding unit is fixed on the rotating disk, a triggering unit is movably installed on the base seat, the triggering unit has a first stroke and a second stroke that are opposite to each other, and position sensors fixed to the base seat are provided on each of the first stroke and the second stroke. When the position sensor senses the triggering unit, the rotation direction of the rotating disk is switched, and the protruding unit can provide a driving force for the movement of the triggering unit on the first stroke and the second stroke as the rotating disk rotates.

[0009] Preferably, the base seat includes a bottom plate fixed to the lifting platform, a support box fixed in the middle of the bottom plate and rotatably connected to the rotating disk, and a support tube rotatably installed on the support box and fixed to the rotating disk.

[0010] Preferably, the triggering unit includes a column plate fixed to the bottom plate, a shaft rod is rotatably installed between the column plate and the outer side surface of the support box, a gear disk is rotatably installed on the shaft rod, and a triggering strip capable of entering the sensing area of the position sensor is fixed on the gear disk. The protruding unit can drive the gear disk to deflect so that the triggering strip enters the sensing area of the sensor.

[0011] Preferably, a plurality of uniformly distributed through holes are formed in the disk body of the rotating disk, and a cylindrical socket is rotatably installed in each through hole. The bottom end of each cylindrical socket extends out of the bottom of the rotating disk to form a protruding unit.

[0012] Preferably, the insertion ends of the cylindrical sockets are all located in the through holes, and two oppositely distributed convex point blocks are installed on the inner wall of the through hole above the insertion ends of the cylindrical sockets. The axial rotation of the cylindrical socket can drive the inserted plug to be squeezed against the convex point blocks.

[0013] Preferably, the bottom side of the cylindrical socket is electrically connected to a transmission cable. When the transmission cable is pulled, it can provide a driving force for the axial rotation of the cylindrical socket. A through hole for the transmission cable to pass through is formed on the side surface of the support tube, and the pulling direction of the transmission cable is perpendicular to the axis of the cylindrical socket.

[0014] Preferably, a plurality of wire passing holes penetrating the lifting platform are formed at the bottom of the support box, and each wire passing hole can allow a single transmission cable to pass through.

[0015] Preferably, a shielding baffle is covered on the circumference of the base seat, and the shielding baffle is fixed to the column plate.

[0016] Preferably, the triggering unit includes a mounting bracket fixed to the base seat. A triggering rod is movably mounted on the mounting bracket. A branch block is fixed on the triggering rod. The branch block is located on the movement track line of the protruding unit. The protruding unit can push the branch block to make the triggering rod enter the sensing area of the position sensor.

[0017] Preferably, a return spring sleeved on the triggering rod is provided between the branch block and the mounting bracket. The return spring can withdraw the triggering rod from the sensing area of the position sensor after the protruding unit moves away.

[0018] In the above technical solution, a multi-dimensional test support platform provided by the present invention movably mounts a triggering unit on the base seat, and position sensors are respectively arranged on two strokes of the triggering unit. The position sensors are signal-controlled and connected to the driving unit of the rotating disk. When any one of the position sensors senses the triggering unit, the rotating disk will make a steering switch. Compared with the existing switching method of the rotating disk, in the present application, the rotating disk does not directly sense the position sensor, and the movement paths of the rotating disk and the protruding unit are both outside the sensing range of the position sensor. Therefore, the rotation stroke of the rotating disk is no longer limited by the two sensors, and the rotating disk can be deflected by more than 360 degrees, which is beneficial to further eliminating the test blind area of the object to be tested and improving the comprehensiveness of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings.

[0020] Figure 1 It is a schematic diagram of the deflection angle range of the rotating disk on the existing support platform;

[0021] Figure 2 It is a schematic diagram of the deflection angle range of the rotating disk of a multi-dimensional test support platform of the present invention;

[0022] Figure 3 It is an overall schematic diagram of a multi-dimensional test support platform of the present invention;

[0023] Figure 4 It is a schematic structural diagram of the triggering unit of a multi-dimensional test support platform of the present invention;

[0024] Figure 5 For the present invention Figure 4 The sectional view taken along line A-A;

[0025] Figure 6Schematic diagram of the support box of a multi-dimensional test support platform according to the present invention;

[0026] Figure 7 Schematic diagram of the installation of the shielding baffle of a multi-dimensional test support platform according to the present invention;

[0027] Figure 8 Schematic diagram of the trigger unit structure in another embodiment of a multi-dimensional test support platform according to the present invention.

[0028] Explanation of reference numerals:

[0029] 1. Lifting platform; 2. Base pedestal; 2.1. Bottom plate; 2.2. Support box; 2.3. Support tube; 2.4. Threading hole; 2.5. Shielding baffle; 3. Rotating disk; 3.1. Through hole; 3.2. Cylindrical socket; 3.3. Bump block; 3.4. Transmission cable; 3.5. Through opening; 3.6. Wiring port; 3.7. Support mesh frame; 4. Protruding unit; 5. Trigger unit; 5.1. Column plate; 5.2. Shaft rod; 5.3. Gear disk; 5.4. Trigger bar; 6. Position sensor; 7. Mounting frame; 8. Trigger rod; 9. Branch block; 10. Return spring; 11. Tooth ring; 12. Gear; 13. Driving motor. Detailed implementation manners

[0030] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0031] The microwave anechoic chamber is a special room composed of anechoic materials and a metal shielding body. There is a receiving antenna near the wall in the room. The platform that can be lifted and rotated is generally located in the middle of the room. When performing corresponding signal tests on communication devices such as antennas (such as routers) in the microwave anechoic chamber, the object to be tested such as a router is placed on the platform that can be lifted and rotated, and then the object to be tested is connected to the RF cable on the platform that can be lifted and rotated, so that the object to be tested can emit signals and can be received by the receiving antenna. The rotating object to be tested can make its various surfaces face the receiving antenna in turn, realizing the omnidirectional measurement of electromagnetic radiation;

[0032] However, since there is a corresponding transmission cable, that is, an RF cable, connected to the object to be tested, the rotating disk cannot rotate continuously in the same direction. The currently common method is to set a rotating disk on the lifting platform to support the object to be tested, and a position sensor is provided at each of the starting position and the ending position of the rotating disk, so that the rotating disk reciprocates and deflects between the two position sensors;

[0033] However, the disadvantage of the existing solution is that, as shown in the accompanying drawings of the specification Figure 1As shown in the figure, since the rotation path of the rotating disk is arc-shaped, the rotation stroke of the rotating disk is limited by two sensors. No matter how the two sensors are arranged, the rotation angle of the rotating disk is always less than 360 degrees, resulting in a test blind area for the object to be measured on the rotating disk and making the test results incomplete.

[0034] Please refer to Figures 1 - 8 , a multi-dimensional test support platform provided by an embodiment of the present invention includes a lifting platform 1, a base 2 is fixed on the lifting platform 1, a rotating disk 3 is rotatably installed on the base 2, a protruding unit 4 is fixed on the rotating disk 3, a trigger unit 5 is movably installed on the base 2, the trigger unit 5 has a first stroke and a second stroke that are opposite to each other, and position sensors 6 fixed to the base 2 are provided on each of the first stroke and the second stroke. When the position sensor 6 senses the trigger unit 5, the rotation direction of the rotating disk 3 is switched, and the protruding unit 4 can provide a driving force for the movement of the trigger unit 5 on the first stroke and the second stroke as the rotating disk 3 rotates;

[0035] Specifically, the lifting platform 1 can be adjusted in height in the vertical direction. The lifting mechanism part of the lifting platform 1 is not shown in the accompanying drawings of the specification, only the platform board of the lifting platform 1. The number of bases 2 on the lifting platform 1 is 3 to 5. The rotating disk 3 can support the object to be tested, and the object to be tested can also rotate synchronously with the rotating disk 3. There is a spaced space between the bottom surface of the rotating disk 3 and the top surface of the lifting platform 1. The protruding unit 4 is installed on the bottom surface of the rotating disk 3. When the trigger unit 5 is pushed by an external force, it can move on the base 2. The position sensor 6 is connected to the control unit of the driving motor that drives the rotating disk 3 for signal control. When the position sensor 6 senses the trigger unit 5, the driving motor will change the driving direction;

[0036] In actual use, the protruding unit 4 rotates synchronously clockwise with the rotating disk 3. When the protruding unit 4 reaches the position where the trigger unit 5 is located, at this time, the protruding unit 4 positively presses one side of the trigger unit 5 under the drive of the continuous clockwise rotation of the rotating disk 3, so that the trigger unit 5 undergoes a positive displacement on the first stroke. The trigger unit 5 moves from the origin position towards the direction of the corresponding position sensor 6. When the position sensor 6 senses the trigger unit 5, at this time, the position sensor 6 feeds back the signal to the control unit of the driving motor, so that the control unit makes the driving motor switch the driving direction, thereby changing the rotation direction of the rotating disk 3 and making the rotating disk 3 rotate counterclockwise to realize switching the rotation direction of the rotating disk 3;

[0037] Then the protruding unit 4 rotates synchronously counterclockwise with the rotating disk 3, and the protruding unit 4 moves away from the trigger unit 5 as the rotating disk 3 rotates, so that the trigger unit 5 moves towards the origin position on the first stroke;

[0038] When the protruding unit 4 that rotates counterclockwise synchronously with the rotating disk 3 reaches the position of the trigger unit 5 again, at this time, the protruding unit 4 presses the other side of the trigger unit 5 in the reverse direction under the drive of the continuous counterclockwise rotation of the rotating disk 3, so that the trigger unit 5 undergoes a reverse displacement in the second stroke. The trigger unit 5 moves from the origin position towards the direction of another corresponding position sensor 6. When the other position sensor 6 senses the trigger unit 5, at this time, the position sensor 6 feeds back a signal to the control unit of the drive motor, so that the control unit causes the drive motor to switch the drive direction, thereby changing the rotation direction of the rotating disk 3 and making the rotating disk 3 rotate clockwise, realizing the switching of the rotation direction of the rotating disk 3;

[0039] Then the protruding unit 4 rotates clockwise synchronously with the rotating disk 3, and the protruding unit 4 moves away from the trigger unit 5 as the rotating disk 3 rotates, so that the trigger unit 5 moves towards the origin position in the second stroke;

[0040] In the whole process, whether the rotating disk 3 rotates clockwise or counterclockwise, the protruding unit 4 switches the rotation direction of the rotating disk 3 only after passing over the origin position of the trigger unit 5, so as to realize the expansion of the rotation stroke of the rotating disk 3. The rotation angle of the rotating disk 3 is always greater than 360 degrees, as shown in the Figure 2 figure shown in the specification drawings. The rotating disk 3 completes a full revolution, which is beneficial to further eliminating the test blind area of the measured object on the rotating disk 3 and improving the comprehensiveness of the test results.

[0041] Another embodiment provided by the present invention, the base base 2 includes a bottom plate 2.1 fixed to the lifting platform 1. The bottom plate 2.1 is a circular plate. A support box 2.2 rotatably connected to the rotating disk 3 is fixed in the middle of the bottom plate 2.1. A support tube 2.3 fixed to the rotating disk 3 is rotatably installed on the support box 2.2. The support tube 2.3 vertically rotates through the top surface of the support box 2.2, and the bottom end of the support tube 2.3 is in contact with the inner bottom surface of the support box 2.2. Preferably, a plurality of support wheels in contact with the inner bottom surface of the support box 2.2 are installed at the bottom end of the support tube 2.3 to reduce the frictional resistance of the axial rotation of the support tube 2.3. The plate surface of the bottom plate 2.1 is parallel to the plate surface of the rotating disk 3, and there is a spaced space between the plate surface of the bottom plate 2.1 and the plate surface of the rotating disk 3. The rotating disk 3 can rotate in the support box 2.2 with the axis of the support tube 2.3 as the center of the circle;

[0042] It should be further noted that a toothed ring 11 is fixedly sleeved on the pipe body of the support pipe 2.3. A gear 12 is meshed and driven on the ring body of the toothed ring 11. A driving motor 13 is fixed on the support box 2.2. The output shaft of the driving motor 13 is fixed to the gear 12. Thus, the driving motor 13 can provide driving force for the rotation of the rotating disc 3 through the meshing transmission of the gear 12 and the toothed ring 11, so that the rotating disc 3 can change its rotation direction according to the switching of the driving direction of the driving motor 13.

[0043] Another embodiment provided by the present invention, the trigger unit 5 includes a column plate 5.1 fixed on the bottom plate 2.1. The column plate 5.1 is an L-shaped strip body. The plate surface of the column plate 5.1 is parallel to the side surface of the support box 2.2. A shaft rod 5.2 is rotatably installed between the column plate 5.1 and the outer side surface of the support box 2.2. The axis line of the shaft rod 5.2 is perpendicular to the plate surface of the column plate 5.1 and the outer side surface of the support box 2.2. A toothed disc 5.3 is rotatably installed on the shaft rod 5.2. The disc surface of the toothed disc 5.3 is parallel to the outer side surface of the support box 2.2. A trigger strip 5.4 that can enter the sensing area of the position sensor 6 is fixed on the toothed disc 5.3. The trigger strip 5.4 is located on the symmetry line between the two position sensors 6 in the initial state. The trigger strip 5.4 is located at the bottom position of the toothed disc 5.3. The protruding unit 4 can drive the toothed disc 5.3 to deflect so that the trigger strip 5.4 enters the sensing area of the sensor 6;

[0044] Furthermore, a plurality of uniformly distributed through holes 3.1 are formed in the disc body of the rotating disc 3. The through holes 3.1 are uniformly distributed along the circular line of the rotating disc 3. The center of the circular line of the rotating disc 3 coincides with the center of the rotating disc 3. A cylindrical socket 3.2 is rotatably installed in each through hole 3.1. The bottom end of each cylindrical socket 3.2 extends out of the bottom of the rotating disc 3 to form the protruding unit 4. At this time, the entire protruding unit 4 has an arc-shaped rack structure at the bottom of the rotating disc 3. The arc-shaped rack structure can be meshed and matched with the toothed disc 5.3. That is to say, each cylindrical socket 3.2 protruding from the bottom end of the rotating disc 3 forms a protruding unit 4 with an arc-shaped rack structure as a whole. The teeth of the protruding unit 4 with the rack structure are composed of a plurality of cylindrical sockets 3.2 protruding from the bottom end of the rotating disc 3;

[0045] In actual use, for example, when the protruding unit 4 passes through the triggering unit 5 as the rotating disk 3 rotates clockwise, the protruding unit 4 with an arc-shaped rack structure meshes and rotates forward with the gear disk 5.3, so that the gear disk 5.3 deflects forward around the shaft rod 5.2. The forward-deflected gear disk 5.3 drives the trigger bar 5.4 to move towards the sensing area of the position sensor 6. Until the position sensor 6 senses the trigger bar 5.4, and then the rotation direction of the rotating disk 3 is reversed, realizing the switching of the rotation direction of the rotating disk 3. Then the protruding unit 4 rotates counterclockwise synchronously with the rotating disk 3, and the protruding unit 4 with an arc-shaped rack structure meshes and rotates reversely with the gear disk 5.3, causing the gear disk 5.3 to deflect reversely around the shaft rod 5.2, and the trigger bar 5.4 disengages from the sensing area of the position sensor 6;

[0046] Similarly, when the protruding unit 4 passes through the triggering unit 5 as the rotating disk 3 rotates counterclockwise, the triggering and switching process of the rotation process of the rotating disk 3 is the same as the above principle and will not be elaborated.

[0047] In another embodiment provided by the present invention, the insertion ends of the cylindrical sockets 3.2 are all located within the through holes 3.1. The insertion end of the cylindrical socket 3.2 is the end for plugging into the plug of the object to be tested. Two oppositely distributed convex blocks 3.3 are installed on the inner wall of the through hole 3.1 above the insertion end of the cylindrical socket 3.2. The convex blocks 3.3 are preferably spherical bead structures movably embedded in the wall surface of the through hole 3.1, and the convex blocks 3.3 can freely rotate on the wall surface of the through hole 3.1. The axial rotation of the cylindrical socket 3.2 can drive the plugged-in plug to squeeze against the convex blocks 3.3. Among them, an annular groove is opened on the inner wall surface of the through hole 3.1, and a limiting block fixed to the cylindrical socket 3.2 is slidably fitted in the annular groove, so as to realize the rotational installation of the cylindrical socket 3.2 within the through hole 3.1;

[0048] Furthermore, the bottom side of the cylindrical socket 3.2 is electrically connected to a transmission cable 3.4. The transmission cable 3.4 is a radio frequency cable, and the transmission cable 3.4 is perpendicular to the side of the cylindrical socket 3.2. When the transmission cable 3.4 is pulled, it can provide a driving force for the axial rotation of the cylindrical socket 3.2. A through hole 3.5 for the transmission cable 3.4 to pass through is opened on the side of the support tube 2.3. Among them, a wiring port 3.6 connected to the transmission cable 3.4 is opened on the bottom side of the cylindrical socket 3.2, and the wiring port 3.6 and the through hole 3.5 are on the same horizontal plane, so as to ensure that the pulling direction of the transmission cable 3.4 is perpendicular to the axis of the cylindrical socket 3.2. In addition, a plurality of wire passing holes 2.4 penetrating through the lifting platform 1 are opened at the bottom of the support box 2.2, and each wire passing hole 2.4 can allow a single transmission cable 3.4 to pass through. A support mesh frame 3.7 for separating the transmission cables 3.4 is fixed inside the support tube 2.3;

[0049] It should be further noted that a transmission cable 3.4 is connected to the side of each cylindrical socket 3.2 through a wiring port 3.6. Each transmission cable 3.4 extends into the interior of the support tube 2.3 through a through hole 3.5, and then each transmission cable 3.4 respectively passes through the bottom of the support box 2.2 and the tabletop of the lifting platform 1 through a wire passing hole 2.4, so that a plurality of transmission cables 3.4 are concentrated inside the support tube 2.3, which is beneficial to wire harness management;

[0050] During actual use, the plug of the object to be measured is inserted into the insertion end of the cylindrical socket 3.2. At this time, a part of the plug of the object to be measured also extends into the through hole 3.1, and the plug of the object to be measured is located between the two convex point blocks 3.3. At this time, the transmission cable 3.4 between the wiring port 3.6 and the through hole 3.5 is in a bent state, the orientation of the wiring port 3.6 is not directly facing the through hole 3.5, and there is a certain deflection angle between the wiring port 3.6 and the through hole 3.5;

[0051] When the support tube 2.3 rotates axially relative to the support box 2.2, since a part of the transmission cable 3.4 passes through the wire passing hole 2.4 on the support box 2.2, and the other part of the transmission cable 3.4 passes through the through hole 3.5 of the support tube 2.3, the transmission cable 3.4 inside the support tube 2.3 will be twisted in a certain spiral, and the transmission cable 3.4 will shrink to a certain extent. During the shrinkage process of the transmission cable 3.4, a certain pulling force can be generated on the deflection of the axis direction of the cylindrical socket 3.2, so that the transmission cable 3.4 between the wiring port 3.6 and the through hole 3.5 changes from a bent state to a straightened state, and the orientation of the wiring port 3.6 is also directly facing the through hole 3.5. Since the cylindrical socket 3.2 has an axial deflection, the plug of the object to be measured also rotates synchronously with the cylindrical socket 3.2. The cross section of the plug of the object to be measured is oval, so the plug of the object to be measured is squeezed and limited by the convex point blocks 3.3, which is equivalent to further locking the plug of the object to be measured, which is beneficial to improving the fastening degree of the insertion between the cylindrical socket 3.2 and the plug of the object to be measured. On the other hand, the axial deflection of the cylindrical socket 3.2 also increases the maximum angle of the spiral twist of the transmission cable 3.4 and reduces the resistance of the transmission cable 3.4 to the deflection of the support tube 2.3.

[0052] In other words, when the plug of the object to be measured is inserted into the cylindrical socket 3.2 and the support tube 2.3 rotates, the transmission cable 3.4 inside the support tube 2.3 is twisted in a certain spiral, and the twisted transmission cable 3.4 will shrink to a certain extent. The cylindrical socket 3.2 is axially deflected in the through hole 3.1 under the contraction force generated by the spiral twist of the transmission cable 3.4;

[0053] Since the plug of the object under test is inserted into the cylindrical socket 3.2, the plug of the object under test will deflect synchronously with the cylindrical socket 3.2. And the cross-section of the plug of the object under test is oval. Therefore, during the deflection, the plug of the object under test will be squeezed by the bump block 3.3, thereby limiting the axial deflection of the cylindrical socket 3.2. Also, during the deflection, the plug of the object under test being squeezed by the bump block 3.3 also has a locking effect on the insertion between the plug of the object under test and the cylindrical socket 3.2 to a certain extent, which is beneficial to improving the tightness of the insertion between the cylindrical socket 3.2 and the plug of the object under test;

[0054] On the other hand, the cylindrical socket 3.2 undergoes axial deflection within the through-hole 3.1 due to the contraction force generated by the spiral twist of the transmission cable 3.4, which also increases the maximum angle of the spiral twist of the transmission cable 3.4 to a certain extent. For example, if the support tube 2.3 originally rotates 90 degrees, then the transmission cable 3.4 also needs to be spirally twisted 90 degrees. Since the cylindrical socket 3.2 can accept the contraction force generated by the spiral twist of the transmission cable 3.4 and undergoes an axial deflection angle a within the through-hole 3.1, now when the support tube 2.3 rotates 90 degrees, the degree of spiral twist required for the transmission cable 3.4 is 90 - a degrees. And the smaller the spiral twist angle of the transmission cable 3.4, the more beneficial it is to reduce the resistance to the deflection of the support tube 2.3 and also beneficial to improving the protection of the transmission cable 3.4.

[0055] In another embodiment provided by the present invention, a shielding baffle 2.5 is covered on the circumference of the base base 2, and the shielding baffle 2.5 is fixed to the column plate 5.1, thereby shielding and blocking other objects that are not the object under test, reducing the off-frequency influence on the receiving antenna, and being beneficial to improving the accuracy of the test result of the object under test.

[0056] In another embodiment provided by the present invention, the trigger unit 5 includes a mounting bracket 7 fixed to the base base 2. A trigger rod 8 is movably mounted on the mounting bracket 7. A branch block 9 is fixed on the trigger rod 8, and the branch block 9 is located on the movement track line of the protruding unit 4. The protruding unit 4 can push the branch block 9 to make the trigger rod 8 enter the sensing area of the position sensor 6;

[0057] Furthermore, a return spring 10 sleeved on the trigger rod 8 is provided between the branch block 9 and the mounting bracket 7. The return spring 10 can withdraw the trigger rod 8 from the sensing area of the position sensor 6 after the protruding unit 4 moves away;

[0058] Specifically, the trigger rod 8 is a cross bar parallel to the horizontal plane. The branch block 9 is fixed in the middle of the trigger rod 8. There are two mounting brackets 7, which are respectively located on both sides of the branch block 9. The two mounting brackets 7 are fixed to the side surface of the support box 2.2. The mounting bracket 7 is a limit ring sleeve that is slidably sleeved and adapted to the trigger rod 8. One end of the return spring 10 is fixed to the mounting bracket 7, and the other end of the return spring 10 is connected and fixed to the branch block 9;

[0059] In actual use, when the protruding unit 4 passes through the trigger unit 5, at this time, the protruding unit 4 will apply a horizontal thrust along the axis direction of the trigger rod 8 to the branch block 9, so that the trigger rod 8 moves horizontally along the axis direction, and the return spring 10 also undergoes elastic compression deformation, so that the trigger rod 8 extends into the sensing area of the position sensor 6, so that the rotation direction of the rotating disk 3 can be switched. Then, the protruding unit 4 moves away from the branch block 9 as the rotating disk 3 moves. At the same time, under the action of the elastic release of the return spring 10, the branch block 9 and the trigger rod 8 return to the initial position, and the trigger rod 8 withdraws from the sensing area of the position sensor 6.

[0060] Only some exemplary embodiments of the present invention are described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present invention, the described embodiments can be modified in various different ways. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the protection scope of the claims of the present invention.

Claims

1. A multi-dimensional test support platform, comprising a lifting platform (1), characterized in that, A base base (2) is fixed on the lifting platform (1). A rotating disk (3) is rotatably installed on the base base (2). A protruding unit (4) is fixed on the rotating disk (3). A trigger unit (5) is movably installed on the base base (2). The trigger unit (5) has a first stroke and a second stroke that are opposite to each other. Position sensors (6) fixed to the base base (2) are provided on each of the first stroke and the second stroke. When the position sensor (6) senses the trigger unit (5), the rotation direction of the rotating disk (3) is switched. As the rotating disk (3) rotates, the protruding unit (4) can provide a driving force for the movement of the trigger unit (5) on the first stroke and the second stroke.

2. The multi-dimensional test support platform according to claim 1, characterized in that, The base base (2) includes a bottom plate (2.1) fixed to the lifting platform (1). A support box (2.2) rotatably connected to the rotating disk (3) is fixed in the middle of the bottom plate (2.1). A support tube (2.3) fixed to the rotating disk (3) is rotatably installed on the support box (2.2).

3. The multi-dimensional test support platform according to claim 2, characterized in that, The trigger unit (5) includes a column plate (5.1) fixed to the bottom plate (2.1). A shaft rod (5.2) is rotatably installed between the column plate (5.1) and the outer side surface of the support box (2.2). A toothed disk (5.3) is rotatably installed on the shaft rod (5.2). A trigger strip (5.4) capable of entering the sensing area of the position sensor (6) is fixed on the toothed disk (5.3). The protruding unit (4) can drive the toothed disk (5.3) to deflect so that the trigger strip (5.4) enters the sensing area of the sensor (6).

4. The multi-dimensional test support platform according to claim 3, wherein, A plurality of uniformly distributed through holes (3.1) are formed in the disk body of the rotating disk (3). A cylindrical socket (3.2) is rotatably installed in each through hole (3.1). The bottom end of each cylindrical socket (3.2) extends out of the bottom of the rotating disk (3) to form the protruding unit (4).

5. A multi-dimensional test support platform according to claim 4, characterized in that The plug-in end of each cylindrical socket (3.2) is located in the through hole (3.1). Two oppositely distributed convex point blocks (3.3) are installed on the inner wall of the through hole (3.1) above the plug-in end of the cylindrical socket (3.2). Axial rotation of the cylindrical socket (3.2) can drive the inserted plug to squeeze against the convex point block (3.3).

6. The multi-dimensional test support platform according to claim 4, wherein The bottom side of the cylindrical socket (3.2) is electrically connected to a transmission cable (3.4). When the transmission cable (3.4) is pulled, it can provide a driving force for the axial rotation of the cylindrical socket (3.2). A through hole (3.5) for the transmission cable (3.4) to pass through is formed in the side surface of the support tube (2.3). The pulling direction of the transmission cable (3.4) is perpendicular to the axis of the cylindrical socket (3.2).

7. The multi-dimensional test support platform according to claim 6, characterized in that, A plurality of wire passing holes (2.4) penetrating through the lifting platform (1) are formed at the bottom of the support box (2.2). Each wire passing hole (2.4) can allow a single transmission cable (3.4) to pass through.

8. The multi-dimensional test support platform according to claim 3, characterized in that, A shielding baffle (2.5) covers the circumference of the base base (2). The shielding baffle (2.5) is fixed to the column plate (5.1).

9. The multi-dimensional test support platform according to claim 1, characterized in that The trigger unit (5) includes a mounting bracket (7) fixed to the base seat (2). A trigger rod (8) is movably mounted on the mounting bracket (7). A branch block (9) is fixed to the trigger rod (8). The branch block (9) is located on the movement track line of the protruding unit (4). The protruding unit (4) can push the branch block (9) so that the trigger rod (8) enters the sensing area of the position sensor (6).

10. The multi-dimensional test support platform according to claim 9, characterized in that, A return spring (10) sleeved on the trigger rod (8) is provided between the branch block (9) and the mounting bracket (7). The return spring (10) can withdraw the trigger rod (8) from the sensing area of the position sensor (6) after the protruding unit (4) moves away.

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