Electromagnetic shielding box for radio frequency chip test

Abstract

The invention discloses a radio frequency chip test electromagnetic shielding box, and belongs to the field of electromagnetic shielding boxes. Comprising a shielding box body, a bearing plate body is arranged in the shielding box body, the right side of the shielding box body is rotationally connected with a hollow screw tube through a rotating shaft, the right end of the hollow screw tube extends into the shielding box body, the outer side wall of the hollow screw tube is in threaded connection with a threaded sleeve, and a fixing block is fixedly connected to the front of the right side in the shielding box body. The outer side wall of the fixing block is rotationally connected with a concave piece through a rotating shaft, and the rear surface of the concave piece is fixedly connected with an inclined abutting piece. The bearing plate body is used for placing a radio frequency chip and can slide in the shielding box body to form a radio frequency chip protection shell together, the cover plate is inserted into the inner side of the clamping seat through the insertion box on the cover plate and can be clamped into the clamping opening through the clamping block, so that the cover plate can cover the shielding box body, the closed shielding effect of the radio frequency chip is achieved, and the service life of the radio frequency chip is prolonged. And the subsequent test is facilitated.

Description

Technical Field

[0001] The present invention relates to the field of electromagnetic shielding boxes, in particular to an electromagnetic shielding box for radio frequency chip testing. Background Art

[0002] An electromagnetic shielding box is a metal body made of conductive or magnetic materials in various shapes such as shells, plates, and sleeves. It limits electromagnetic capabilities to a certain spatial range and is used to suppress radiation interference. It also processes conduction and radiation to provide an interference-free test environment for the wireless communication equipment under test.

[0003] Patent publication number (CN217564011U) discloses a 5G radio frequency chip shielding device, which relates to the technical field of radio frequency chip supporting devices. The utility model includes a radio frequency carrying structure, the top of the radio frequency carrying structure is clamped with a limited shielding structure, both sides of the limited shielding structure are provided with a matching lock connection structure, the bottom end of the matching lock connection structure passes through the limited shielding structure and is assembled with the radio frequency carrying structure, the radio frequency carrying structure includes a circuit board, a chip body, a mounting hole and a locking hole, the inside of the four ends of the circuit board are provided with mounting holes, the inner side of the circuit board is provided with a locking hole, and the top of the circuit board is fixedly connected to the chip body. The utility model makes it easy to shield the radio frequency chip and elastically limit the chip through the coordinated design of the radio frequency carrying structure, the limiting shielding structure and the matching lock connection structure, and the convenient assembly and clamping of the overall shielding device is greatly improved in terms of ease of use.

[0004] In the above technology, it is inconvenient to open the box, and it is not convenient to adjust the clamping according to the thickness of the chip. The applicability is small. In addition, when opening the box to take out the chip, the RF carrying structure and the limiting shielding structure need to be separated. The integrated effect is poor and needs to be improved. For this reason, we proposed an electromagnetic shielding box for RF chip testing. Summary of the Invention

[0005] Purpose of the invention: The purpose of the present invention is to provide a device for stably clamping a chip; another purpose of the present invention is to provide a device for facilitating the removal of a chip.

[0006] Technical solution: An electromagnetic shielding box for testing radio frequency chips, comprising a shielding box body, a carrying plate body being provided inside the shielding box body, a hollow spiral tube being rotatably connected to the right side of the shielding box body via a rotating shaft, the right end of the hollow spiral tube extending to the interior of the shielding box body, and a threaded sleeve being threadedly connected to the outer wall, a fixed block being fixedly connected to the front right side of the interior of the shielding box body, the outer wall of the fixed block being rotatably connected to a concave part via a rotating shaft, an inclined abutment piece being fixedly connected to the rear surface of the concave part, a rear end of the inclined abutment piece being located on the outer side of the threaded sleeve and having a recess, the inner upper surface and the inner lower surface of the recess being rotatably connected to a rotating column via a rotating shaft, and the opposite ends of the two rotating columns being rotatably connected to the outer wall of the threaded sleeve via a rotating shaft;

[0007] The front surface of the upper surface of the supporting plate body is provided with two through-type sliding grooves 1, and the interior of the sliding groove 1 is slidably connected to a slider 1. A through-type sliding groove 2 is provided at the rear surface of the upper surface of the supporting plate body, and the interior of the sliding groove 2 is slidably connected to two sliders 2. The upper surfaces of the slider 1 and the slider 2 facing each other are fixedly connected with a clamping plate, and the bottom end of the slider 2 located on the right side of the interior of the sliding groove 2 is fixedly connected with a pushed block, and the right side of the pushed block contacts the left side of the inclined abutment piece.

[0008] Furthermore, the bottom of the slider 1 is located below the supporting plate body and is fixedly connected to a rack 1, the lower surface of the supporting plate body is located between the two racks 1 and is fixedly connected to a gear 1, the gear 1 is meshed with the rack 1, and a spring 4 is fixedly connected between the slider 1 and the slide groove 1.

[0009] Furthermore, anti-slip grooves are symmetrically provided inside the shielding box, and anti-slip blocks are fixedly connected to the insides of the two anti-slip grooves at the rear of both sides of the supporting plate.

[0010] Furthermore, two transmission wheels are rotatably connected to the lower left side of the interior of the shielding box through a rotating shaft, and the outer side walls of the two transmission wheels are jointly connected to a transmission belt. Gear 2 is fixedly connected to the right side of the transmission wheel located at the front of the interior of the shielding box, and rack 2 is fixedly connected to the left side of the lower surface of the supporting plate, and gear 2 is meshed with rack 2.

[0011] Furthermore, the right side of the transmission wheel at the rear of the inside of the shielding box is fixedly connected to a hollow tube, and the interior of the hollow tube and the interior of the hollow spiral are slidably connected to a rotating rod, and the outer wall of the rotating rod is located at the opposite ends of the hollow spiral and the hollow tube and is fixedly connected to two abutment plates, and the right end of the rotating rod passes through the right end of the hollow spiral and is fixedly connected to a knob.

[0012] Furthermore, a limiting plate is provided on the outer wall of the rotating rod between the two abutment plates, a fixing bar is fixedly connected to the lower surface of the shielding box, a guide rod is slidably connected to the inside of the fixing bar, the right end of the guide rod is fixedly connected to the limiting bar, a limiting groove is provided on the top of the limiting bar on the outside of the limiting plate, and a spring is fixedly connected between the fixing bar and the limiting bar.

[0013] Furthermore, a snap-fit ​​seat is fixedly connected to the inner upper surface of the shielding box, and snap-fit ​​openings are provided on both sides of the inner side of the snap-fit ​​seat.

[0014] Furthermore, the front surface of the supporting plate is fixedly connected to a cover plate, the rear surface of the cover plate is fixedly connected to a plug-in box, two movable pieces are slidably connected to the inside of the plug-in box, the opposite sides of the two movable pieces are fixedly connected to a snap-fit ​​block, the opposite ends of the two snap-fit ​​blocks respectively pass through the front surface and the rear surface of the plug-in box, a spring 2 is fixedly connected between the two movable pieces, and the snap-fit ​​seat is adapted to the plug-in box.

[0015] Furthermore, the front surface of the cover is fixedly connected to a locking box, and the interior of the locking box is slidably connected to a locking block, the rear end of the locking block passes through the interior of the plug-in box, and the outer side wall is in contact with the opposite sides of the two movable pieces, and a plurality of springs are fixedly connected between the locking block and the locking box. The inner upper surface of the locking box is rotatably connected to a hand-held rod through a rotating shaft, and a traction rope is fixedly connected between the hand-held rod and the locking block, the bottom end of the hand-held rod passes through the bottom of the locking box, and the outer side wall is fixedly connected to a rubber sleeve.

[0016] Beneficial effects:

[0017] The carrier plate is used to place the RF chip and can slide along the shielding box to form a protective shell for the RF chip. The carrier plate is plugged into the inner side of the snap-fit ​​seat through the plug-in box on the cover plate, and can be snapped into the inner side of the snap-fit ​​port through the snap-fit ​​block, so that the cover plate can cover the shielding box to achieve a closed shielding effect for the RF chip, which is convenient for subsequent testing.

[0018] Under normal conditions, the locking block will rest between the two movable pieces, preventing the engaging block from retracting toward the inside of the plug-in box. Therefore, when the plug-in box is engaged or withdrawn into the engaging seat, it is necessary to rotate the hand-held lever and pull the locking block away from the movable piece. At this time, the plug-in box can be engaged into the engaging seat or withdrawn from the engaging seat. This method makes it easy to open the cover and withdraw the bearing plate while ensuring that the cover is not easily opened when covering the shielding box.

[0019] The adjustable tilted abutment piece has different inclinations, which controls the relative movement range of the clamping plates to different sizes, making it easier to clamp chips of different sizes. After the carrier plate is pulled out, the two clamping plates automatically separate under the push of spring 4, making it easier to remove the chip.

[0020] By pushing the knob forward or backward, the two abutment plates abut against the hollow spiral tube or hollow tube. At this time, turning the knob can control the rotation of the hollow spiral tube or the hollow tube, thereby facilitating the adjustment of the inclination of the inclined abutment piece or controlling the bearing plate to slide along the inside of the shielding box body.

[0021] Under normal conditions, under the pull of spring 1, the two contact plates will respectively move away from the hollow spiral tube and the hollow tube, to prevent the hollow spiral tube or the hollow tube from rotating when the rotating rod is rotated by accidentally touching the knob. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic structural diagram of the left side of the interior of the shielding box of the present invention;

[0024] Figure 3 It is a structural schematic diagram of the right side of the interior of the shielding box of the present invention;

[0025] Figure 4 It is a schematic diagram of the connection structure of the bearing plate, the transmission belt, the inclined abutment piece and the rotating rod of the present invention;

[0026] Figure 5 It is a bottom view structural diagram of the bearing plate body of the present invention;

[0027] Figure 6 Schematic diagram of the connection structure of the inclined abutment piece, the concave member and the threaded sleeve of the present invention;

[0028] Figure 7 It is a schematic diagram of the internal structure of the plug-in box of the present invention;

[0029] Figure 8 is a schematic side view of the connection structure of the vertical cross section of the hand-held rod and the locking box of the present invention;

[0030] Figure 9 The present invention Figure 4 A is an enlarged structural diagram of FIG.

[0031] In the figure: 1. Shielding box; 2. Load-bearing plate; 3. Hollow screw; 4. Threaded sleeve; 5. Fixed block; 6. Concave member; 7. Inclined abutment piece; 8. Notch; 9. Rotating column; 10. Slideway 1; 11. Slideway 1; 12. Slideway 2; 13. Slideway 2; 14. Clamping plate; 15. Pushing block; 16. Rack 1; 17. Gear 1; 18. Anti-slip groove; 19. Anti-slip block; 20. Transmission wheel; 21. Transmission belt; 22. Gear 2; 23. Rack 2; 24. Hollow tube; 25. Rotating rod; 26. Abutment plate; 27. Knob; 28. Limiting plate; 29. ​​Fixing bar; 30. Guide rod; 31. Limiting bar; 32. Limiting slot; 33. Spring one; 34. Engaging seat; 35. Engaging mouth; 36. Cover plate; 37. Plug-in box; 38. Engaging block; 39. Spring two; 40. Locking box; 41. Locking block; 42. Spring three; 43. Hand-held rod; 44. Pull rope; 45. Rubber sleeve; 46. Movable piece; 47. Spring four. DETAILED DESCRIPTION

[0032] In order to make the technical solution of the present invention clearer, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] Example 1

[0034] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, an electromagnetic shielding box for RF chip testing is provided, including a shielding box body 1, a supporting plate body 2 is arranged inside the shielding box body 1, anti-slip grooves 18 are symmetrically opened inside the shielding box body 1, and anti-slip blocks 19 are fixedly connected to the inside of the two anti-slip grooves 18 on both sides of the rear of the supporting plate body 2;

[0035] The carrier plate 2 is used to place the radio frequency chip and can slide along the shielding box 1 to form a radio frequency chip protection shell.

[0036] like Figure 7 and Figure 8 As shown, the inner upper surface of the shielding box 1 is fixedly connected to a snap-fit ​​seat 34, and snap-fit ​​openings 35 are opened on both sides of the inner side of the snap-fit ​​seat 34. The front surface of the carrier plate 2 is fixedly connected to a cover plate 36, and the rear surface of the cover plate 36 is fixedly connected to a plug-in box 37. Two movable pieces 46 are slidably connected to the interior of the plug-in box 37. The opposite sides of the two movable pieces 46 are fixedly connected to snap-fit ​​blocks 38. The opposite ends of the two snap-fit ​​blocks 38 respectively penetrate the front and rear surfaces of the plug-in box 37. A spring 2 39 is fixedly connected between the two movable pieces 46. The snap-fit ​​seat 34 is adapted to the plug-in box 37.

[0037] The plug-in box 37 on the cover 36 is plugged into the inner side of the snap-fit ​​seat 34, and the snap-fit ​​block 38 is snapped into the inner side of the snap-fit ​​opening 35, so that the cover 36 can cover the shielding box 1, achieving a closed shielding effect for the RF chip, which is convenient for subsequent testing;

[0038] The front surface of the cover plate 36 is fixedly connected to a locking box 40, and a locking block 41 is slidably connected to the interior of the locking box 40. The rear end of the locking block 41 extends into the interior of the plug-in box 37, and the outer side wall is in contact with the opposite sides of the two movable pieces 46. A plurality of springs 42 are fixedly connected between the locking block 41 and the locking box 40. A hand-held rod 43 is rotatably connected to the upper surface of the inner part of the locking box 40 via a rotating shaft. A traction rope 44 is fixedly connected between the hand-held rod 43 and the locking block 41. The bottom end of the hand-held rod 43 extends through the bottom of the locking box 40, and a rubber sleeve 45 is fixedly connected to the outer side wall.

[0039] Under normal conditions, under the push of spring three 42, the locking block 41 will rest between the two movable pieces 46, so that the locking block 38 cannot shrink toward the inside of the plug-in box 37. Therefore, when the plug-in box 37 is engaged or pulled out to the inside of the engaging seat 34, it is necessary to rotate the hand-held rod 43, and by reeling in the traction rope 44, pull the locking block 41 away from the movable piece 46. At this time, the plug-in box 37 can be engaged to the inside of the engaging seat 34, or pulled out from the inside of the engaging seat 34. This method can facilitate the cover 36 to open and pull out the supporting plate body 2, while ensuring that the cover 36 is not easy to open when covering the shielding box body.

[0040] like Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6As shown, the right side of the shielding box 1 is rotatably connected to a hollow spiral tube 3 through a rotating shaft, the right end of the hollow spiral tube 3 extends to the interior of the shielding box 1, and the outer wall is threadedly connected to a threaded sleeve 4, and the front right side of the interior of the shielding box 1 is fixedly connected to a fixed block 5, and the outer wall of the fixed block 5 is rotatably connected to a concave part 6 through a rotating shaft, and the rear surface of the concave part 6 is fixedly connected to an inclined abutment piece 7, and the rear end of the inclined abutment piece 7 is located on the outside of the threaded sleeve 4 and is provided with a recess 8. The inner upper surface and the inner lower surface of the recess 8 are both rotatably connected to a rotating column 9 through a rotating shaft, and the opposite ends of the two rotating columns 9 are rotatably connected to the outer wall of the threaded sleeve 4 through a rotating shaft, and two through-type slide grooves 10 are provided in the front of the upper surface of the bearing plate body 2, and the inner part of the slide groove 10 A slider 11 is slidably connected, and a through-type slide groove 2 12 is provided at the rear of the upper surface of the bearing plate body 2. Two sliders 2 13 are slidably connected inside the slide groove 2 12. The upper surfaces of the sliders 11 and sliders 2 13 facing each other are fixedly connected with a clamping plate 14. The bottom end of the slider 2 13 located on the right side of the slide groove 2 12 is fixedly connected with a pushed block 15. The right side of the pushed block 15 contacts the left side of the inclined abutment piece 7. The bottom of the slider 11 is located below the bearing plate body 2 and is fixedly connected with a rack 16. The lower surface of the bearing plate body 2 is fixedly connected with a gear 17 between the two racks 16. The gear 17 is meshed with the rack 16. A spring 47 is fixedly connected between the slider 11 and the slide groove 10.

[0041] By rotating the hollow solenoid 3, the inclination of the inclined abutment piece 7 can be adjusted, so that when the chip placed on the upper surface of the carrier plate body 2 slides toward the inside of the shielding box body 1, the push block 15 contacts the inclined abutment piece 7, and under the meshing action of the rack 16 and the gear 17, the two clamping plates 14 can be controlled to move relative to each other, thereby facilitating the clamping of the chip. The relative movement range of the clamping plates 14 can be controlled to be different according to the different inclinations of the adjusted inclined abutment piece 7, thereby facilitating the clamping of chips of different sizes. After the carrier plate body 2 is pulled out, the two clamping plates 14 are automatically separated under the push of the spring 47, making it easy to remove the chip.

[0042] Two transmission wheels 20 are rotatably connected to the lower left side of the interior of the shielding box body 1 through a rotating shaft, and the outer side walls of the two transmission wheels 20 are jointly connected to a transmission belt 21 for transmission. The right side of the transmission wheel 20 located in the front of the interior of the shielding box body 1 is fixedly connected to a gear 22, and a rack 23 is fixedly connected to the left side of the lower surface of the bearing plate body 2. The gear 22 is meshed with the rack 23. The right side of the transmission wheel 20 at the rear of the interior of the shielding box body 1 is fixedly connected to a hollow tube 24. The interior of the hollow tube 24 and the interior of the hollow spiral tube 3 are jointly slidably connected to a rotating rod 25. The outer side walls of the rotating rod 25 are located at the opposite ends of the hollow spiral tube 3 and the hollow tube 24 and are fixedly connected to two abutment plates 26. The right end of the rotating rod 25 passes through the right end of the hollow spiral tube 3 and is fixedly connected to a knob 27.

[0043] When the hollow tube 24 rotates, the control gear 22 rotates under the drive of the transmission belt 21, and meshes with the rack 23 to control the movement of the carrier plate 2. By pushing the hand-held knob 27 forward or backward, the two abutment plates 26 abut against the hollow solenoid 3 or the hollow tube 24. At this time, turning the knob 27 can control the rotation of the hollow solenoid 3 or the hollow tube 24, thereby facilitating the adjustment of the inclination of the inclined abutment piece 7 or controlling the carrier plate 2 to slide along the inside of the shielding box body 1.

[0044] A limit plate 28 is provided on the outer wall of the rotating rod 25 between the two abutment plates 26. A fixing bar 29 is fixedly connected to the lower surface of the shielding box 1. A guide rod 30 is slidably connected to the interior of the fixing bar 29. The right end of the guide rod 30 is fixedly connected to a limit bar 31. The top of the limit bar 31 is located on the outer side of the limit plate 28 and has a limit groove 32. A spring 33 is fixedly connected between the fixing bar 29 and the limit bar 31.

[0045] Under normal conditions, under the pull of spring 1 33 , the two contact plates 26 will be respectively away from the hollow spiral tube 3 and the hollow tube 24 , to avoid the hollow spiral tube 3 or the hollow tube 24 from being rotated when the knob 27 is accidentally touched and the rotating rod 25 is rotated.

[0046] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. An electromagnetic shielding box for testing radio frequency chips, comprising a shielding box body (1), characterized in that: A bearing plate (2) is arranged inside the shielding box (1), and a hollow spiral tube (3) is rotatably connected to the right side of the shielding box (1) via a rotating shaft, the right end of the hollow spiral tube (3) extends to the inside of the shielding box (1), and the outer wall is threadedly connected to a threaded sleeve (4), a fixed block (5) is fixedly connected to the front right side of the inside of the shielding box (1), the outer wall of the fixed block (5) is rotatably connected to a concave part (6) via a rotating shaft, the rear surface of the concave part (6) is fixedly connected to an inclined abutment sheet (7), the rear end of the inclined abutment sheet (7) is located on the outer side of the threaded sleeve (4) and a recess (8) is provided, the inner upper surface and the inner lower surface of the recess (8) are both rotatably connected to a rotating column (9) via a rotating shaft, and the opposite ends of the two rotating columns (9) are rotatably connected to the outer wall of the threaded sleeve (4) via a rotating shaft; Two through-type slide grooves (10) are provided in front of the upper surface of the bearing plate body (2), and a slider (11) is slidably connected inside the slide groove (10). A through-type slide groove (12) is provided at the rear of the upper surface of the bearing plate body (2), and two sliders (13) are slidably connected inside the slide groove (12). A clamping plate (14) is fixedly connected to the upper surfaces of the sliders (11) and (13) which are opposite to each other. A push block (15) is fixedly connected to the bottom end of the slider (13) located on the right side of the slide groove (12), and the right side of the push block (15) contacts the left side of the inclined abutment sheet (7).

2. The radio frequency chip test electromagnetic shielding box according to claim 1, characterized in that: The bottom of the slider (11) is located below the supporting plate (2) and is fixedly connected to a rack (16); the lower surface of the supporting plate (2) is located between the two racks (16) and is fixedly connected to a gear (17); the gear (17) is meshed with the rack (16); a spring (47) is fixedly connected between the slider (11) and the slide groove (10).

3. The radio frequency chip test electromagnetic shielding box according to claim 1, characterized in that: The shielding box (1) is symmetrically provided with anti-slip grooves (18), and anti-slip blocks (19) are fixedly connected to the inside of the two anti-slip grooves (18) at the rear of both sides of the bearing plate (2).

4. The radio frequency chip test electromagnetic shielding box according to claim 1, characterized in that: Two transmission wheels (20) are rotatably connected to the lower left side of the shielding box (1) via a rotating shaft, and the outer side walls of the two transmission wheels (20) are commonly connected to a transmission belt (21). A gear 2 (22) is fixedly connected to the right side of the transmission wheel (20) located at the front of the shielding box (1), and a rack 2 (23) is fixedly connected to the left side of the lower surface of the supporting plate (2), and the gear 2 (22) is meshingly connected with the rack 2 (23).

5. The electromagnetic shielding box for radio frequency chip testing according to claim 4, characterized in that: The right side of the transmission wheel (20) at the rear of the shielding box (1) is fixedly connected to a hollow tube (24); the interior of the hollow tube (24) and the interior of the hollow spiral tube (3) are slidably connected to a rotating rod (25); the outer wall of the rotating rod (25) is located at the opposite ends of the hollow spiral tube (3) and the hollow tube (24) and is fixedly connected to two abutment plates (26); the right end of the rotating rod (25) passes through the right end of the hollow spiral tube (3) and is fixedly connected to a knob (27).

6. The electromagnetic shielding box for radio frequency chip testing according to claim 5, characterized in that: The outer wall of the rotating rod (25) is provided with a limiting plate (28) between the two abutting plates (26); the lower surface of the shielding box (1) is fixedly connected with a fixing strip (29); the interior of the fixing strip (29) is slidably connected with a guide rod (30); the right end of the guide rod (30) is fixedly connected with a limiting strip (31); the top of the limiting strip (31) is located on the outer side of the limiting plate (28) and a limiting groove (32) is provided; a spring (33) is fixedly connected between the fixing strip (29) and the limiting strip (31).

7. The electromagnetic shielding box for radio frequency chip testing according to claim 1, characterized in that: A snap-fit ​​seat (34) is fixedly connected to the inner upper surface of the shielding box (1), and snap-fit ​​openings (35) are provided on both sides of the inner side of the snap-fit ​​seat (34).

8. The electromagnetic shielding box for radio frequency chip testing according to claim 7, characterized in that: The front surface of the bearing plate body (2) is fixedly connected with a cover plate (36), the rear surface of the cover plate (36) is fixedly connected with a plug-in box (37), the interior of the plug-in box (37) is slidably connected with two movable plates (46), the opposite sides of the two movable plates (46) are fixedly connected with a snap-fit ​​block (38), the opposite ends of the two snap-fit ​​blocks (38) respectively penetrate the front surface and the rear surface of the plug-in box (37), a spring 2 (39) is fixedly connected between the two movable plates (46), and the snap-fit ​​seat (34) is adapted to the plug-in box (37).

9. The electromagnetic shielding box for radio frequency chip testing according to claim 8, characterized in that: The front surface of the cover plate (36) is fixedly connected to a locking box (40), and the interior of the locking box (40) is slidably connected to a locking block (41), the rear end of the locking block (41) passes through the interior of the plug-in box (37), and the outer side wall is in contact with the opposite sides of the two movable sheets (46), a plurality of springs (42) are fixedly connected between the locking block (41) and the locking box (40), the inner upper surface of the locking box (40) is rotatably connected to a hand-held rod (43) via a rotating shaft, a traction rope (44) is fixedly connected between the hand-held rod (43) and the locking block (41), the bottom end of the hand-held rod (43) passes through the bottom of the locking box (40), and the outer side wall is fixedly connected to a rubber sleeve (45).

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