WO2018098872A1

WO2018098872A1 - Support platform and antenna measurement isolation room

Info

Publication number: WO2018098872A1
Application number: PCT/CN2016/111866
Authority: WO
Inventors: 韩栋
Original assignee: 深圳市新益技术有限公司
Priority date: 2016-12-01
Filing date: 2016-12-24
Publication date: 2018-06-07
Also published as: CN108132391A; CN108132391B

Abstract

A support platform and an antenna measurement isolation room, solving the technical problem that, with an upwardly-spiked wave absorbing material (81) being densely arranged on the ground, the wave absorbing material (81) is prone to be stepped on by a testing staff member. The technical solution primarily comprises: a test table (11), several middle plates (12) slidably stacked on the test table (11), and a support plate (13) sliding on the middle plate (12) at the top position. The test table (11), the middle plates (12), and the support plate (13) are provided therebetween with sliding components used for restricting vertical sliding relative to each other. The sliding components comprise barrier components restricting the test table (11), the middle plates (12), and the support plate (13) from slipping off each other. Mounted on the test table (11) is a power component for pushing the support plate (13) to slide and thereby implementing stepped telescoping of the support plate (13) and the middle plates (12), thus achieving the effect of reducing damages to the wave absorbing material (81) by means of telescopingly transporting outdoors an electronic device on the test table (11).

Description

Carrying station and antenna measuring isolation room

Technical field

The present invention relates to a carrier and an isolation chamber, and more particularly to a carrier and an isolation chamber for use in antenna measurements.

Background technique

A Chinese patent document with the publication number CN101097234A is now retrieved, which is called the test room of the dual test antenna. The program describes the isolation room, the test table placed in the isolation room, the test antenna installed in the isolation room, and the test antenna emission test. The signal detects the electronic device placed on the test table.

In order to reduce the amount of reflection of the test signal on the wall of the isolation chamber, the designer sets the absorbing material on the ground, the top and the side walls of the isolation chamber to improve the detection accuracy.

Some of the electronic devices to be tested weigh up to 200 kilograms. When the inspectors move the electronic devices into the isolation room, they are more difficult to cause the steps to be unstable. The ground barbed absorbing materials are densely arranged, and the testers are easy to wear and absorb the waves. material.

Summary of the invention

A first object of the present invention is to provide a carrying platform for transporting an electronic device on a test table from the outside to the inside by telescopic means, thereby reducing damage of the absorbing material.

The above technical object of the present invention is achieved by the following technical solutions:

A loading platform includes a test table, a test table superimposed and sliding, a plurality of intermediate plates, and a receiving plate sliding at the top position of the intermediate plate, wherein the test table, the intermediate plate and the receiving plate are respectively arranged to limit each other a sliding assembly for sliding, the sliding assembly comprising a baffle assembly for restricting the test table, the intermediate plate and the receiving plate from slipping off each other, the test table being mounted with a push plate sliding to realize the stepping of the receiving plate and the intermediate plate Telescopic power components.

By adopting the above technical solution, since the electronic device is placed on the receiving plate, the receiving plate receives downward pressure, so that the receiving plate has a tendency to detach from the intermediate plate vertically, and the sliding assembly is used between the intermediate plate and the receiving plate. The slippage, but it limits the vertical sliding, so that the receiving plate and the intermediate plate are difficult to separate under the action of gravity.

The intermediate plate slides on the test table, and the receiving plate slides on the intermediate plate, and the intermediate plate can be 2, 3, 4, 5, 6, 7 and the like. First, when both the intermediate plate and the receiving plate are outwardly slipped The plurality of intermediate plates and the receiving plate form a stepwise extension, and the tester places the electronic device on the receiving plate, and then slides the intermediate plate and the receiving plate inward, and the intermediate plate and the receiving plate are superposed on each other, and the electronic The advantage of this design is that the tester does not need to directly transport the electronic device directly above the test table, and the movement of the support plate reduces the handling of the tester and the stepping on the ground, reducing the number of the device as it moves to the top of the test table. For damage to the floor paving material, the material may be an absorbing material.

The slip assembly is used for the stable slip of the intermediate plate and the receiving plate, and the baffle assembly functions as a baffle, so that the intermediate plate and the receiving plate are difficult to slip off each other in the contraction slip or the extension slip.

The power component is for driving the slippage of the receiving plate, wherein the baffle assembly is blocked from each other, so that the receiving plate and the intermediate plate can be mutually slidably moved to form a ladder when the receiving plate and the intermediate plate slide out. shape.

Preferably, the sliding assembly comprises a T-shaped sliding groove and a sliding block, and a bottom of the sliding groove is rotatably connected with a roller for receiving the sliding block.

By adopting the above technical solution, the T-shaped arrangement enables the slider and the chute to be restrained from each other in the vertical direction, and the receiving plate and the intermediate plate are difficult to be separated in the vertical direction, and the sliding groove and the sliding block cooperate with the sliding plate of the receiving plate and the intermediate plate. Play the effect of positioning.

The rolling friction between the roller and the slider makes the slip of the intermediate plate and the receiving plate smoother and faster.

Preferably, the baffle assembly comprises a stop fixed to the test table and the intermediate plate, the block blocks the upper intermediate plate and the receiving plate to block the intermediate plate and the receiving plate in the retracted position;

The baffle assembly further includes a sliding cavity opened on the test table and the intermediate plate, a wedge block sliding in the sliding cavity, a spring driving the wedge block against the upper intermediate plate, the receiving plate, and a lower surface of the intermediate plate and the receiving plate Opening a wedge-shaped hole that is inserted into the wedge block; when the receiving plate and the intermediate plate are extended, the wedge-shaped block is inserted into the wedge-shaped hole to limit the protruding slip of the receiving plate and the intermediate plate;

When the receiving plate and the intermediate plate are contracted, the inclined surface of the tapered hole abuts against the wedge hole and slides toward the compression spring to separate the wedge block from the wedge hole.

By adopting the above technical solution, the stopper restricts further slippage of the intermediate plate and the receiving plate in a manner of resisting, and functions as a positioning.

The wedge block is placed in the sliding cavity, the wedge block is used to block the intermediate plate above it and the receiving plate. When the intermediate plate and the receiving plate are contracted, the wedge block is blocked by the upper plate, and the spring is in a compressed state, the middle Both the plate and the receiving plate can slide against the wedge block. When the wedge hole is aligned with the wedge block, the wedge block slides upward on the spring force of the spring and is inserted into the wedge hole. At this time, the intermediate plate and the receiving plate are in an extended state. And both of them are difficult to slide outward by the barrier. At this time, if the contraction slips, the pressure generated by the wedge-shaped hole and the inclined surface of the wedge plate presses the wedge block against the spring to retract into the sliding cavity, and loses the wedge shape. The partition of the plate, the intermediate plate and the receiving plate can be further inwardly contracted and slipped.

Preferably, the upper surface of the receiving plate is provided with a locking groove arranged in a crosswise manner, the locking groove is fixed with a clamping plate, a locking block is slidably locked in the locking groove, and the locking block is screwed with a screw placed on the surface of the receiving plate, and the screw is tightened The screw is moved relative to the lock block to clamp the clamp plate to fix the screw.

By adopting the above technical solution, the screw is loosened, the cap portion of the screw is separated from the lock block, the screw and the lock block are slid in the lock groove to adjust the position, and then the screw is tightened, and the cap portion of the screw and the lock block clamp plate are realized. Fixed; lock slot cross The screws can be fixed in four positions that are not in the same straight line. The four screws can clamp the electronic device on the receiving board, which reduces the occurrence of the electronic device slipping off the receiving plate.

Preferably, the cap portion of the screw is covered with a soft rubber sleeve.

By adopting the above technical solution, the soft rubber sleeve is relatively soft, the tester is more comfortable to screw, and the cap portion is less likely to be indented when pressed against the electronic device.

Preferably, the lower end of the receiving plate is fixed with a support rod, a roller mounted on the lower end of the support rod, and a track laid on the ground for the roller to walk.

By adopting the above technical solution, the support rod plays a supporting role on the underside of the receiving plate, reduces the unevenness of the receiving plate and is inclined, and the sliding of the receiving plate is smoother and smoother; the cooperation of the roller and the track has a sliding track for limiting the supporting rod. The purpose is to indirectly make the slip path of the receiving plate and the intermediate plate accurate and stable.

Preferably, the support rod includes an upper rod and a lower rod that slide with each other, and the sliding ends of the upper rod and the lower rod are screwed to fix the axial position of the upper and lower rods, and the roller comprises a mounting bracket, the lower portion A rod is inserted into the mounting bracket to achieve rotational fixation of both.

By adopting the above technical solution, the shrinkage of the upper rod and the lower rod can shorten the overall length of the support rod, and facilitate the handling of the support rod; the track and the roller have errors in the installation process, and the roller is easily suspended above the rail, at this time The rotation of the upper and lower rods enables fine adjustment of the axial spacing, enabling rapid installation of the rollers and tracks.

Preferably, the receiving plate is provided with a receiving cavity, and the sliding cavity is inserted into the receiving cavity;

After the slide slides out of the accommodating cavity, one end of the slide is in contact with the ground, and the other end is stuck to the cavity wall of the accommodating cavity to realize the inclined setting of the slide;

The slide comprises a frame and a round roller disposed within the frame, and a ratchet and a pawl are disposed between the round roller and the frame to achieve a one-way rotation of the round roller above the slide.

By adopting the above technical solution, when not in use, the slide is inserted into the accommodating cavity in a sliding manner, thereby saving space.

When the receiving plate slides out, the slide slides out from the accommodating cavity, and the downward tilting of the slide is formed to form a landslide, and the slide is positioned on the receiving plate and the ground. At this time, the electronic device can slide along the slide to the receiving plate due to The slide takes up part of the gravity of the electronic device, and it is easier to carry the electronic device to the receiving plate;

The electronic device can move on the round roller, and the round roller generates rolling friction, which makes the moving electronic device easier;

The ratchet and the ratchet act, causing the round roller to lock when rolling down and moving down when the electronic device moves up. When the detecting personnel slides the hand of the electronic device, the sliding device generates sliding friction between the electronic device and the round roller, and has the slowing electron. The effect of the product slip speed is to give the tester a response time for avoiding the falling electronic device, and the safety performance is better when the electronic device is transported.

Preferably, the power assembly includes a cylinder fixed to a test table, and a piston rod of the cylinder is fixed to the bearing Board.

By adopting the above technical solution, the cylinder is driven stably and easily controlled, and the medium is gas, and timely leakage does not cause pollution to various components.

A second object of the present invention is to provide an antenna measuring isolation chamber that transports electronic devices on a test table from the outside to the inside by telescopic means to reduce breakage of the absorbing material.

An antenna measuring isolation chamber includes an opening, wherein the loading platform is placed indoors, and when the receiving plate of the loading platform is extended, the edge of the receiving plate is placed outside the opening.

By adopting the above technical solution, the receiving plate on the carrying platform protrudes from the opening, the electronic device is shipped, and is retracted directly above the test table, so that the electronic device outside the isolation room is transported into the isolation room, and the detecting personnel does not need to enter the isolation room. Internally, the pedaling of the absorbing material is reduced; since the distance for manually transporting the electronic device to the test table is shortened, the fatigue strength of the inspector is reduced.

The test results are more accurate by mechanically transporting the electronic devices on the test bench from the outside to the indoor fixed position (the center of the antenna measurement isolation room).

DRAWINGS

1 is a schematic structural view of the intermediate plate and the receiving plate of Embodiment 1 after being extended;

2 is a schematic structural view of a test table, an intermediate plate, and a receiving plate in the embodiment;

3 is a schematic structural view of the intermediate plate and the receiving plate of the first embodiment after contraction;

4 is a schematic cross-sectional view showing the connection relationship between the wedge block and the wedge hole after the intermediate plate protrudes from the test table in Embodiment 1;

Figure 5 is a schematic view showing the connection relationship between the lock groove and the screw of the upper surface of the embodiment 1;

Figure 6 is a schematic structural view of the screw cap portion of the first embodiment after longitudinal sectioning;

Figure 7 is a schematic structural view of a support rod in Embodiment 1;

Figure 8 is a schematic view showing the assembly of the sliding chamber and the slide in the first embodiment;

Figure 9 is a schematic view showing the connection structure of the round rod and the frame in the first embodiment;

Figure 10 is a schematic view showing the structure of the antenna measuring isolation chamber of the second embodiment.

In the picture:

11, test table; 12, the middle board; 13, the receiving board;

21, chute; 22, slider; 23, roller;

311, sliding cavity; 312, wedge block; 313, spring; 314, wedge hole;

32, the block;

41, lock groove; 411, splint; 42, lock block; 43, screw; 431, cap; 432, soft rubber sleeve;

51, support rod; 511, upper rod; 512, lower rod; 52, roller; 53, mounting frame; 54, track;

61, accommodating cavity; 62, slide; 63, frame; 64, round roller; 65, ratchet; 66, pawl; 67, round rod; 68, card slot; 691, channel steel; 692, compression spring;

7, the cylinder;

81, absorbing material; 82, opening; 83, sealing plate; 84, test needle.

detailed description

The invention will be further described in detail below with reference to the accompanying drawings.

The present invention is only an explanation of the present invention, and is not intended to limit the present invention. Those skilled in the art can make modifications without innovating the present embodiment as needed after reading the present specification, but as long as the present invention is in the right of the present invention. All requirements are protected by patent law.

Embodiment 1, the carrying platform, as shown in FIG. 1, includes a test table 11 having four legs for supporting. The upper surface of the test table 11 is sequentially superposed with an intermediate plate 12, and the intermediate plate 12 is superimposed thereon. a receiving plate 13; the sliding plate intermediate plate 12 can be slid on the test table 11, and the receiving plate 13 can slide on the intermediate plate 12; the test table 11, the intermediate plate 12 and the receiving plate are restricted by the baffle assembly 13 receives constraints from each other along its sliding direction; the power receiving unit 13 pushes the receiving plate 13 and the intermediate plate 12 outwardly to form a step or inward contraction to the stacking position.

The power assembly includes a cylinder 7, the cylinder of the cylinder 7 is fixed to the side wall of the test table 11 by screws, and the piston rod of the cylinder 7 is hinged to the side wall of the receiving plate 13, and when the cylinder 7 is ejected, the receiving plate 13 and the intermediate plate 12 is mutually driven to slide out, so that the intermediate plate 12 and the receiving plate 13 are extended and slipped; when the cylinder 7 is retracted, the intermediate plate 12 and the receiving plate 13 are slipped and superposed.

As shown in FIG. 2, the sliding assembly includes a T-shaped chute 21 formed on the upper surface of the test table 11, and the wider end of the chute 21 faces the groove bottom of the chute 21 inside the test table 11, and the groove of the chute 21. A roller 23 is inserted at the bottom, and the roller 23 can be freely rotated; the lower surface of the intermediate plate 12 is integrally formed with a slider 22, and the slider 22 and the sliding groove 21 are gap-fitted, and the slider 22 is supported by the roller 23, and slides. When the block 22 slides on the roller 23, the sliding friction between the slider 22 and the roller 23 causes the slider 22 to slip more smoothly. The wider end of the chute 21 faces downward, that is, the bottom surface of the test table 11, and the wide end of the slider 22 is vertically engaged with the chute 21, so that the slider 22 and the chute 21 are hard to be separated in the vertical direction.

The intermediate plate 12 is slid along the end of the opening 82 of the chute 21 to test the table 11 to form a stepped shape; and the other end of the test table 11 is to block the intermediate plate 12 such that the intermediate plate 12 is superimposed directly above the test table 11.

The slip assembly between the receiving plate 13 and the intermediate plate 12 is the same as the slip group between the test table 11 and the intermediate plate 12 The receiving plate 13 can be along the sliding groove 21 of the intermediate plate 12, and finally the intermediate plate 12 and the receiving plate 13 form a stepped sliding structure.

The baffle assembly, the test table 11 is integrally formed with a strip 32 formed by a strip, and the block 32 is placed at the other end of the chute 21, and when the intermediate plate 12 is slid to the test table 11, the intermediate plate 12 is further The slip path is blocked; there is also a stop 32 on the intermediate plate 12 which is equivalent to the test table 11, which blocks the receiving plate 13 which slides on the intermediate plate 12.

As shown in FIG. 3, the action of the stopper 32 causes the intermediate plate 12 and the receiving plate 13 to be superimposed vertically on the test table 11, and at this time, the receiving plate 13 is placed at the station to be inspected.

As shown in FIG. 4, the baffle assembly also includes a wedge block 312 that limits the position of the intermediate plate 12 from sliding out of the test table 11.

The upper surface of the test table 11 is provided with a sliding chamber 311 with an opening upward. The wedge block 312 has a cylindrical shape. The upper end of the wedge block 312 is provided with a slope, and a spring 313 is placed in the sliding chamber 311. The spring 313 is in contact with the bottom of the sliding chamber 311 and the wedge block 312, and the spring 313 drives the wedge block 312 to move upward; and since the upper surface of the test table 11 is slipped with the intermediate plate 12, when the intermediate plate 12 is slipped, the intermediate plate 12 against the wedge block 312, the wedge block 312 is difficult to slide further upwards, at which time the intermediate plate 12 is free to slide on the test table 11.

The intermediate plate 12 is provided with a wedge-shaped hole 314. When the intermediate plate 12 slides out of the test table 11 to a predetermined position, the wedge-shaped hole 314 is aligned with the wedge-shaped block 312, and the wedge-shaped block 312 is divided into the wedge-shaped hole 314. At this time, the wedge-shaped block 312 is opposed to the middle. The panel 12 is blocked such that it is difficult for the intermediate panel 12 to slide further out of the test table 11.

When the intermediate plate 12 slides into the test table 11, the inclined surface of the wedge hole 314 abuts against the inclined surface of the wedge block 312, the wedge block 312 receives a downward thrust, and the wedge block 312 is retracted into the sliding cavity 311, so that the intermediate plate 12 can The retraction movement to the test table 11 is retracted.

Between the receiving plate 13 and the intermediate plate 12, there are wedge-shaped holes 314 and wedge-shaped blocks 312 equivalent to the intermediate plate 12 and the test table 11, and the final position of the receiving plate 13 sliding out of the intermediate plate 12 is restricted.

The upper surface of the receiving plate 13 is used to house an electronic device.

As shown in FIG. 5 and FIG. 6, the upper surface of the receiving plate 13 is provided with a cross-shaped locking groove 41. The upper opening of the locking groove 41 is integrally formed with a clamping plate 411. The clamping plate 411 has a T-shaped cross section of the locking groove 41. The four corners of the lock groove 41 are slid by the lock block 42; the lock block 42 is square, and the two sides of the lock block 42 are in contact with the side walls of the lock groove 41, so that the lock block 42 cannot rotate in the lock groove 41, and the lock block 42 A screw 43 is attached to the upper thread, and a cap portion 431 of the screw 43 is placed at the upper end of the clamp plate 411.

When the screw 43 is screwed into the lock block 42, the cap portion 431 of the screw 43 and the lock block 42 hold the clamp plate 411 to fix the cap portion 431 of the screw 43, and the four screws 43 clamp the electronic device on the receiving plate 13. Fixed, reducing the slip of the electronic device on the receiving plate 13.

The cap portion 431 is heat-sealed with a soft rubber sleeve 432, and the soft rubber sleeve 432 is in contact with the electronic device to reduce scratches on the surface of the electronic device by the screw 43.

The lower end of the receiving plate 13 is fixed with a support rod 51 by a screw 43.

As shown in FIG. 7, the support rod 51 includes a larger diameter upper rod 511 and a smaller diameter lower rod 512. The upper rod 511 is hollowed out inside, so that the lower rod 512 can be vertically slid inside the upper rod 511. An internal thread is formed at a lower end portion of the upper rod 511, and an upper end portion of the lower rod 512 is provided with an external thread, and the internal and external threads are threadedly engaged with each other. The upper rod 511 is screwed to the lower rod 512, and fine adjustment of the vertical position of the upper rod 511 and the lower rod 512 is achieved by thread rotation.

The lower end of the lower rod 512 is inserted into the mounting bracket 53, and the mounting bracket 53 is rotated about the axis of the lower rod 512. Below the mounting frame 53, a roller 52 is mounted, and a rail 54 for moving the roller 52 is laid on the floor.

As shown in FIG. 8, an outwardly facing end of the receiving plate 13, that is, an end adjacent to the supporting rod 51, is provided with a receiving cavity 61. The receiving cavity 61 is slid into a slide 62, and the slide 62 is hidden in the receiving cavity 61. Inside.

A round rod 67 extends outwardly from the two ends of the slide 62. The cavity of the receiving cavity 61 is recessed downwardly with a card slot 68. When the slide 62 slides out of the receiving plate 13, the round bar 67 is snapped into the card slot, and the slide 62 is wound around the round bar. Rotating downward, the slide 62 is inclined downward, the round rod 67 of the slide 62 is snapped into the slot 68, and the lower end of the slide 62 is in contact with the ground (as shown in FIG. 1); the design advantage is that the electronic device is along the slide 62. Sliding to the upper end of the receiving plate 13 reduces the fatigue strength of the inspector.

The slide 62 includes a rectangular frame 63 into which the circular rollers 64 are inserted, and the round rollers 64 are arranged in parallel to facilitate rolling of the electronic product.

As shown in FIG. 9, the two ends of the circular roller 64 are welded and fixed to the ratchet 65. The inner wall of the frame 63 is welded and fixed with a channel 691. The channel 691 is hinged with a pawl 66. The channel 691 is also in contact with a compression spring 692. The compression spring 692 drives the pawl 66 against the ratchet 65.

The round roller 64 can rotate upward in a unidirectional manner under the action of the ratchet 65 and the ratchet, and when the electronic device moves up the slide 62, the round roller 64 rotates with rolling friction between the two; and when the electronic product moves down The round roller 64 is locked, and there is sliding friction between the two.

Embodiment 2, the antenna measuring isolation chamber, as shown in FIG. 10, includes a rectangular chamber body, and six sides of the chamber are arranged with a conical absorbing material 81, and one side of the chamber body is provided with a square opening 82, the opening 82 Used to place an electronic device into the isolation room. The opening 82 is then threaded by a sealing plate 83 with a absorbing material 81.

The carrying platform of Embodiment 1 is placed in the chamber. It can be seen that after the receiving plate 13 of the carrying platform is extended, the slide 62 slides out of the isolated outdoor, and the slide 62 is placed obliquely on the ground.

A test pin 84 is mounted inside the chamber body. After the receiving plate 13 is retracted into the chamber body, the test pin 84 detects the electronic device on the receiving plate 13.

Claims

A carrying platform comprising a test table (11), characterized in that: the test table (11) is superimposed and slipped with a plurality of intermediate plates (12), and a receiving plate (13) which slides at the top position intermediate plate (12), A sliding assembly for restricting vertical sliding of each other is provided between the test table (11), the intermediate plate (12) and the receiving plate (13), the sliding assembly including a limit test table (11), the middle The baffle assembly of the plate (12) and the receiving plate (13) slides off each other, and the test table (11) is mounted with the sliding of the push receiving plate (13) to realize the stepwise expansion and contraction of the receiving plate (13) and the intermediate plate (12). Power components.
The platform according to claim 1, wherein the sliding assembly comprises a T-shaped chute (21) and a slider (22), and the bottom of the sliding slot (21) is rotatably connected for receiving sliding The roller (23) of the block (22).
A platform according to claim 1 or 2, wherein said baffle assembly comprises a stop (32) fixed to the test table (11) and the intermediate plate (12), said stop (32) being separated The upper intermediate plate (12) and the receiving plate (13) are arranged to block the intermediate plate (12) and the receiving plate (13) in the retracted position;

The baffle assembly further includes a sliding cavity (311) opened on the test table (11) and the intermediate plate (12), a wedge block (312) sliding in the sliding cavity (311), and a driving wedge block (312). The upper middle plate (12), the spring (313) of the receiving plate (13), the intermediate plate (12) and the lower surface of the receiving plate (13) are provided with a wedge-shaped hole (314) that is inserted into the wedge block (312);

When the receiving plate (13) and the intermediate plate (12) are extended, the wedge block (312) is inserted into the wedge hole (314) to restrict the protruding slip of the receiving plate (13) and the intermediate plate (12);

When the receiving plate (13) and the intermediate plate (12) are contracted, the inclined surface of the tapered hole (314) abuts against the tapered hole (314) and slides toward the compression spring (313) to separate the wedge block (312) from the wedge hole (314). .
The loading platform according to claim 3, wherein the upper surface of the receiving plate (13) is provided with a locking groove (41) arranged in an intersecting manner, and the locking groove (41) is fixed with a clamping plate (411) and a locking groove ( 41) The inner slide has a lock block (42), the lock block (42) is screwed with a screw (43) placed on the surface of the receiving plate (13), and the screw (43) is screwed to realize the screw (43) and the lock block (42). Moving the clamping plate (411) toward each other to achieve the fixing of the screw (43).
The platform according to claim 4, characterized in that the cap portion (431) of the screw (43) is sheathed with a soft rubber sleeve (432).
The platform according to claim 1, wherein the lower end of the receiving plate (13) is fixed with a support rod (51) and a roller (52) attached to the lower end of the support rod (51), which is laid on the ground for use. A track (54) that travels on the roller (52).
The platform according to claim 6, wherein the support rod (51) includes upper and lower rods (511) and 512 (512) sliding from each other, and sliding of the upper rod (511) and the lower rod (512) The end threaded connection secures the axial position of the upper and lower rods (512), and the roller (52) includes a mounting bracket (53) into which the lower rod (512) is inserted to achieve both The rotation is fixed.
The loading platform according to claim 1, wherein the receiving plate (13) is provided with a receiving cavity (61), and the sliding cavity (62) is inserted into the receiving cavity (61);

After the slide (62) slides out of the accommodating cavity (61), one end of the slide (62) abuts against the ground, and the other end is stuck to the cavity wall of the accommodating cavity (61) to realize the inclined setting of the slide (62);

The slide (62) includes a frame (63) and a round roller (64) disposed in the frame (63), and a ratchet (65) and a pawl (66) are disposed between the round roller (64) and the frame (63) To achieve a one-way rotation of the round roller (64) above the slide (62).
The platform according to claim 1, wherein said power assembly comprises a cylinder (7) fixed to a test table (11), and a piston rod of said cylinder (7) is fixed to said receiving plate (13) .
An antenna measuring isolation chamber includes an opening (82), characterized in that: a loading platform according to claim 1 is placed indoors, and when the receiving plate (13) of the carrying platform is extended, the receiving plate (13) The edge is placed outside the opening (82).