CN215986200U

CN215986200U - Drawbridge drawer type electromagnetic shielding box

Info

Publication number: CN215986200U
Application number: CN202121976223.3U
Authority: CN
Inventors: 韩朱明; 李银虎; 李银龙; 张延旺
Original assignee: Shenzhen Tojoin Communication Technology Co ltd
Current assignee: Shenzhen Tojoin Communication Technology Co ltd
Priority date: 2021-08-20
Filing date: 2021-08-20
Publication date: 2022-03-08
Anticipated expiration: 2031-08-20

Abstract

The utility model provides a draw-out electromagnetic shielding box of a suspension bridge, which comprises a box body, a door opening and closing assembly and an opposite insertion mechanism, wherein a door plate is connected with an output end of a first power source, the first power source drives the door plate to turn around the edge of an opening so as to open or close the door plate, a sliding plate is connected with an output end of a second power source, a jig plate is detachably fixed on the sliding plate, electronic equipment to be tested is arranged on the jig plate, the second power source is used for driving the sliding plate to move towards the direction close to the opening and extend out of the opening, or driving the sliding plate to move towards the direction far from the opening and be inserted into the opposite insertion mechanism so as to realize electrification, the draw-out electromagnetic shielding box of the suspension bridge further comprises a pressing mechanism which is suspended in a containing cavity in a vertically movable mode, and the pressing mechanism presses the electronic equipment to be tested downwards when the sliding plate moves towards the direction far from the opening. The utility model can facilitate the mechanical arm to take and place the electronic equipment to be tested, and reduce the obstacle winding requirement of the mechanical arm.

Description

Drawbridge drawer type electromagnetic shielding box

Technical Field

The utility model belongs to the technical field of shielding tests, and particularly relates to a drawbridge drawer type electromagnetic shielding box.

Background

In the prior art, signal transmission between various electronic devices tends to develop in a wireless direction, for example: cell phones, tablet devices, watches, and the like. In order to ensure that various electronic devices have good wireless transmission functions, the transmission functions of the products need to be tested in the development and manufacturing stages of the products, and in order to provide accuracy of test results and prevent the products from being influenced by other external signal test environments, the products to be tested need to be placed in a signal shielding device. The shielding box is used as a signal shielding device, and utilizes shielding bodies in various shapes such as shells, plates and sleeves made of conductive or magnetic conductive materials to limit the electromagnetic capacity in a certain space range, so as to inhibit radiation interference and process conduction and radiation, thereby realizing that the tested wireless communication equipment can be tested in an interference-free testing environment. When the traditional electromagnetic shielding box is used for taking out electronic equipment, the electromagnetic shielding box is in a problem with the matching of the mechanical arm, so that the mechanical arm is obstructed in taking out action.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the embodiment of the utility model is to provide a drawbridge drawer type electromagnetic shielding box, which can facilitate a manipulator to take and place electronic equipment to be tested and reduce the obstacle-winding requirement of the manipulator.

The embodiment of the utility model is realized in such a way that the draw-out electromagnetic shielding box of the suspension bridge comprises a box body with an accommodating cavity, a door opening and closing component and a plug-in mechanism, wherein the door opening and closing component and the plug-in mechanism are arranged in the accommodating cavity, the door opening and closing component comprises a first power source, a second power source, a sliding plate and a door plate, the box body is provided with an opening communicated with the accommodating cavity and the outside air, one side of the door plate is hinged with the edge of the opening, the door plate is connected with the output end of the first power source, the first power source drives the door plate to turn around the edge of the opening so as to open or close the door plate, the sliding plate is connected with the output end of the second power source, a jig plate is detachably fixed on the sliding plate, electronic equipment to be tested is arranged on the jig plate, and the second power source is used for driving the sliding plate to move towards the direction close to the opening and extend out of the opening, or the sliding plate is driven to move towards the direction far away from the opening and is connected with the opposite insertion mechanism in an inserting mode to achieve electrification, the drawbridge drawer type electromagnetic shielding box further comprises a pressing mechanism which can be suspended in the accommodating cavity in a vertically moving mode, and the pressing mechanism presses the electronic equipment to be tested downwards when the sliding plate moves towards the direction far away from the opening.

Furthermore, the pressing mechanism comprises a cross rod, a horizontal adjusting slider, a vertical adjusting slider, an adjusting cylinder and a pressing mechanism, two ends of the cross rod are respectively connected with two inner walls opposite to the box body, the moving direction of the cross rod is perpendicular to that of the sliding plate, the horizontal adjusting slider is horizontally and slidably connected to the cross rod, a connecting rod extending downwards is arranged at the bottom of the horizontal adjusting slider, the vertical adjusting slider is vertically and slidably sleeved on the connecting rod, the adjusting cylinder is fixed to the vertical adjusting slider, the pressing mechanism is arranged at the bottom of the adjusting cylinder, the pressing mechanism is connected with an output end of the adjusting cylinder, and the adjusting cylinder drives the pressing mechanism to move up and down along the vertical direction.

Further, hold-down mechanism includes transmission piece, spring positioning needle, fixing base and bearing, the transmission piece with adjust cylinder's output is connected, the fixing base sets up transmission piece bottom, the fixing base with the transmission piece passes through the spring positioning needle is connected, the bearing is rotationally connected fixing base bottom.

Further, the opening and closing door assembly further comprises a bottom plate, the first power source and the second power source are installed on the bottom plate, a sliding rail is arranged at the bottom of the sliding plate, a sliding block matched with the sliding rail is arranged on the bottom plate, and the sliding block is connected with the sliding rail in a sliding mode.

Furthermore, locking knobs are arranged on two sides of the sliding plate and comprise a base, a rotating block and a stop bolt, the base is fixed to the top surface of the sliding plate, grooves are formed in the edge of the jig plate corresponding to the base, the base is embedded in the grooves, the rotating block is rotatably connected to the top surface of the base through the stop bolt, ball plungers are arranged at the bottoms of two ends of the rotating block, positioning holes matched with the ball plungers are formed in the jig plate, and the ball plungers are embedded into the positioning holes to fix the jig plate.

Further, to inserting the mechanism and including mount pad, lift guide arm, fixed frame, data joint installing frame and data joint, the mount pad is fixed on the bottom plate, the lift guide arm can be installed along vertical direction removal on the mount pad, the lift guide arm extends along vertical direction, fixed frame is fixed lift guide arm top, the data joint installing frame is installed being close to of fixed frame tool board one side, set up a plurality of fixed orificess of arranging along the horizontal direction on the data joint installing frame, the data joint passes through the fixed orifices is fixed on the data joint installing frame.

Furthermore, the fixing frame is connected with the data connector mounting frame through a spring positioning pin.

Furthermore, a plurality of limiting blocks matched with electronic equipment to be tested with different sizes are arranged on the jig plate, and the electronic equipment to be tested is fixed on the jig plate through the limiting blocks.

Further, the box includes the chassis, sets up casing and the lid of chassis top connect the upper cover at casing top, casing one side with the chassis edge is articulated, the casing opposite side with the chassis can be dismantled and be connected, be provided with in the chassis and accept the chamber, it is provided with the air spring to accept the intracavity, the casing with the chassis can dismantle the one end of being connected with the output of air spring is connected, the air spring can upwards support the casing.

Further, the housing and the upper cover are connected by quick-clip fixing.

Compared with the prior art, the embodiment of the utility model has the advantages that: according to the draw-out electromagnetic shielding box of the suspension bridge, when the door is opened, the door plate is driven to be turned downwards by the first power source, the sliding plate is driven by the second power source to extend outwards through the opening, the opposite insertion mechanism is separated from the electronic equipment to be tested on the sliding plate, and meanwhile, the pressing mechanism moves upwards to be separated from the electronic equipment to be tested; when closing the door, the second power supply is inwards contracted to enable the sliding plate to move towards the inside of the box body, meanwhile, the pressing mechanism moves downwards and presses the electronic equipment to be tested, the sliding plate moves inwards to be plugged with the inserting mechanism to achieve power-on and communication connection, and finally, the first power supply is contracted to drive the door plate to upwards turn over to achieve closing of the shielding box.

Drawings

Fig. 1 is a schematic view of an overall structure of a drawbridge drawer-type electromagnetic shielding box provided in an embodiment of the present invention;

fig. 2 is a schematic structural view of a door panel of a drawbridge drawer-type electromagnetic shielding box according to an embodiment of the present invention when opened;

fig. 3 is a schematic structural view of the drawbridge drawer-type electromagnetic shielding box according to the embodiment of the present invention when the shell is opened;

fig. 4 is a partial structural schematic view of a drawbridge drawer-type electromagnetic shielding box provided in the embodiment of the present invention;

FIG. 5 is a schematic structural view of the hold-down mechanism of FIG. 2;

FIG. 6 is a schematic structural view of the opposite insertion mechanism of FIG. 4;

fig. 7 is a schematic structural view of the jig plate in fig. 2;

fig. 8 is a schematic structural view of the locking knob in fig. 4.

In the drawings, each reference numeral denotes:

10. a box body; 11. an upper cover; 12. a lower housing; 13. a chassis; 131. an electrical box; 132. an air source interface; 14. quickly clamping; 15. a gas spring; 16. a hinge structure; 20. an opening and closing door assembly; 21. a first power source; 22. a sliding plate; 221. a handle; 222. locking the knob; 2221. a base; 2222. rotating the block; 2223. a stop bolt; 2224. a ball plunger; 23. a second power source; 231. a cylinder transmission sheet; 24. a door panel; 241. a button box; 25. a base plate; 26. a slide rail; 27. a slider; 30. a jig plate; 31. positioning holes; 32. a limiting block; 33. a groove; 40. an electronic device to be tested; 50. a plug-in mechanism; 51. a mounting seat; 52. a lifting guide rod; 53. a fixing frame; 54. a data connector mounting frame; 541. a fixing hole; 55. a data connector; 56. a second spring locator pin; 60. a pressing mechanism; 61. a cross bar; 62. a horizontal adjusting slide block; 63. a vertical adjustment slide block; 64. an adjusting cylinder; 651. a transmission block; 652. a first spring locator pin; 653. a fixed seat; 654. and a bearing.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

As shown in fig. 1 to 8, a drawbridge drawer-type electromagnetic shielding box according to an embodiment of the present invention includes a box body 10 having a receiving cavity, a door opening and closing assembly 20 and a plug-in mechanism 50 disposed in the receiving cavity, where the door opening and closing assembly 20 includes a first power source 21, a second power source 23, a sliding plate 22, and a door plate 24, the box body 10 has an opening communicating the receiving cavity and external air, one side of the door plate 24 is hinged to an edge of the opening, the door plate 24 is connected to an output end of the first power source 21, the first power source 21 drives the door plate 24 to turn around the edge of the opening so as to open or close the door plate 24, the sliding plate 22 is connected to an output end of the second power source 23, a jig plate 30 is detachably fixed on the sliding plate 22, an electronic device 40 to be tested is disposed on the jig plate 30, the second power source 23 is configured to drive the sliding plate 22 to move towards a direction close to the opening and extend out of the opening, or the sliding plate 22 is driven to move towards the direction away from the opening and is inserted into the inserting mechanism 50 to realize electrification, the drawbridge drawer type electromagnetic shielding box further comprises a pressing mechanism 60 which can be suspended in the accommodating cavity in a vertically moving mode, and the pressing mechanism 60 presses the electronic device 40 to be tested downwards when the sliding plate 22 moves towards the direction away from the opening.

When the door is opened, the door plate 24 is driven to be turned downwards by the first power source 21, the sliding plate 22 is driven to extend outwards by the second power source 23 through the opening, the inserting mechanism 50 is separated from the electronic equipment 40 to be tested on the sliding plate 22, and meanwhile, the pressing mechanism 60 moves upwards to be separated from the electronic equipment 40 to be tested; when the door is closed, the second power source 23 contracts inwards to enable the sliding plate 22 to move towards the interior of the box body 10, meanwhile, the pressing mechanism 60 moves downwards and presses the electronic device 40 to be tested, the sliding plate 22 moves inwards to be connected with the inserting mechanism 50 in an inserting mode to achieve power-on and communication connection, finally, the first power source 21 contracts to drive the door plate 24 to turn upwards to achieve closing of the shielding box, and through the mode, the jig plate 30 provided with the electronic device 40 to be tested extends outwards after the door plate 24 is turned and unfolded, so that the manipulator can conveniently take and place the electronic device 40 to be tested, and the obstacle winding requirement of the manipulator is reduced.

Alternatively, the first power source 21 and the second power source 23 are both air cylinders, and the second power source 23 is a rodless air cylinder, and the sliding plate 22 is connected with the rodless air cylinder through the air cylinder driving plate 231, so that the rodless air cylinder can save space and has better operation and stop performance. A pull handle 221 is provided at an end of the slide plate 22 remote from the second power source 23 to facilitate the operator to pull the slide plate 22 outward.

In this embodiment, the pressing mechanism 60 includes a cross rod 61, a horizontal adjusting slider 62, a vertical adjusting slider 63, an adjusting cylinder 64 and a pressing mechanism, two ends of the cross rod 61 are respectively connected with two inner walls of the box 10, the cross rod 61 is perpendicular to the moving direction of the sliding plate 22, the horizontal adjusting slider 62 is connected to the cross rod 61 in a horizontal sliding manner, the bottom of the horizontal adjusting slider 62 is provided with a connecting rod extending downwards, the vertical adjusting slider 63 is sleeved on the connecting rod in a vertical sliding manner, the adjusting cylinder 64 is fixed on the vertical adjusting slider 63, the pressing mechanism is arranged at the bottom of the adjusting cylinder 64, the pressing mechanism is connected with the output end of the adjusting cylinder 64, the adjusting cylinder 64 drives the pressing mechanism to move up and down along the vertical direction, thereby the driving pressing mechanism presses the electronic device 40 to be tested or separates from the electronic device 40 to be tested.

Preferably, the pressing mechanism comprises a transmission block 651, a first spring positioning pin 652, a fixing base 653 and a bearing 654, the transmission block 651 is connected with the output end of the adjusting cylinder 64, the fixing base 653 is arranged at the bottom of the transmission block 651, the fixing base 653 is connected with the transmission block 651 through the first spring positioning pin 652, the bearing 654 is rotatably connected at the bottom of the fixing base 653, the fixing base 653 is elastically connected with the transmission block 651, rolling contact is realized between the bearing 654 and the electronic device 40 to be tested, and the electronic device 40 to be tested is guaranteed not to be damaged when the electronic device 40 to be tested is pressed. Further, the bearing 654 may be made of a soft plastic material, and the bearing 654 may be provided in plural numbers, and the plural bearings 654 are arranged on both sides of the fixing base 653, so as to further prevent the pressing mechanism from damaging the electronic device 40 to be tested.

The door opening and closing assembly 20 of this embodiment further includes a bottom plate 25, the first power source 21 and the second power source 23 are installed on the bottom plate 25, the bottom of the sliding plate 22 is provided with a slide rail 26, the bottom plate 25 is provided with a slide block 27 matched with the slide rail 26, the slide block 27 is connected with the slide rail 26 in a sliding manner, the sliding plate 22 is relatively smooth and smooth when moving back and forth through the slide block 27 and the slide rail 26, and the pause is reduced. Locking knobs 222 are disposed on two sides of the sliding plate 22, each locking knob 222 includes a base 2221, a rotating block 2222 and a stop bolt 2223, the base 2221 is fixed to the top surface of the sliding plate 22, a groove 33 is formed in the edge of the jig plate 30 corresponding to the base 2221, the base 2221 is embedded in the groove 33, the rotating block 2222 is rotatably connected to the top surface of the base 2221 through the stop bolt 2223, two ends of the rotating block 2222 extend to the top surface of the jig plate 30, a ball plunger 2224 is disposed at the bottom of the rotating block 2222, a positioning hole 31 adapted to the ball plunger 2224 is formed in the jig plate 30, and the ball plunger 2224 is embedded in the positioning hole 31 to fix the jig plate 30. When the jig plate 30 needs to be replaced, the rotating block 2222 is only required to be rotated to be separated from the jig plate 30, which is convenient and fast.

Further, be provided with a plurality of stoppers 32 with the not unidimensional electronic equipment 40 adaptation that awaits measuring on the tool board 30, the electronic equipment 40 that awaits measuring is fixed on tool board 30 through stopper 32 to be provided with a plurality of hole sites on the tool board 30, a plurality of hole sites on stopper 32 accessible tool board 30 are installed in different positions, thereby can be according to the nimble fixed position of adjusting stopper 32 of the size of the electronic equipment 40 that awaits measuring, reinforcing tool board 30's adaptability and flexibility.

In addition, the inserting mechanism 50 includes an installation base 51, a lifting guide rod 52, a fixed frame 53, a data connector installation frame 54 and a data connector 55, the installation base 51 is fixed on the bottom plate 25, the lifting guide rod 52 is movably installed on the installation base 51 along the vertical direction, the lifting guide rod 52 extends along the vertical direction, the fixed frame 53 is fixed on the top of the lifting guide rod 52, so that the height of the fixed frame 53 can be adjusted up and down, the data connector installation frame 54 is installed on one side of the fixed frame 53 close to the jig plate 30, a plurality of fixing holes 541 are formed in the data connector installation frame 54 and arranged along the horizontal direction, and the data connector 55 is fixed on the data connector installation frame 54 through the fixing holes 541, so that the positions of the data connector 55 in the horizontal and vertical directions can be adjusted flexibly according to actual conditions. Preferably, the fixing frame 53 and the data connector mounting frame 54 are connected through the second spring positioning pin 56, and when the data connector 55 fails to be inserted into the electronic device 40 to be tested, the second spring positioning pin 56 is compressed, so that the acting force of the data connector 55 on the electronic device 40 to be tested is reduced, and the electronic device 40 to be tested is prevented from being damaged.

The box 10 of this embodiment includes chassis 13, set up the casing and the upper cover 11 of lid joint at the casing top above chassis 13, casing one side is articulated with 13 edges on chassis, and the casing opposite side can be dismantled with chassis 13 and be connected, is provided with in the chassis 13 and accepts the chamber, accepts the intracavity and is provided with air spring 15, and the casing can be dismantled with chassis 13 and be connected one end and be connected with the output of air spring 15, and the casing can be upwards opened when the shielded cell is maintained, and air spring 15 upwards supports the casing this moment. Further, the housing and the upper cover 11 are fixedly connected through the quick clamp 14, the quick clamp 14 can be opened when needed, and the upper cover 11 is directly taken off, so that the inside of the box body 10 is convenient to maintain. The number of the snap clips 14 is four, and two snap clips 14 are provided at both side edges of the upper cover 11, and the snap clips 14 can quickly lock the upper cover 11 and the lower housing 12 or quickly open the upper cover 11.

One side of the door panel 24 can be hinged with the opening edge through the hinge structure 16, the hinge structure 16 comprises a first leaf and a second leaf, the first leaf is fixedly connected with the opening edge, the second leaf is fixedly connected with the door panel 24, and the other side of the door panel 24 is detachably connected with the opening edge. The rear end of chassis 13 is provided with air supply interface 132, and electrical apparatus box 131 is installed to the front end of chassis 13, is provided with switch and button pilot lamp etc. on the electrical apparatus box 131 to the top of door plant 24 also is provided with button box 241, and the button that is equipped with on the button box 241 is unanimous with the button function on the electrical apparatus box, and electrical apparatus box 131 and button box 241 can make things convenient for operating personnel to operate.

In summary, in the drawbridge drawer-type electromagnetic shielding box of the present invention, when the door is opened, the first power source 21 drives the door panel 24 to be opened downward, and the second power source 23 drives the sliding plate 22 to extend outward through the opening, at this time, the inserting mechanism 50 is separated from the electronic device 40 to be tested on the sliding plate 22, and the pressing mechanism 60 moves upward to be separated from the electronic device 40 to be tested; when the door is closed, the second power source 23 contracts inwards to enable the sliding plate 22 to move towards the interior of the box body 10, meanwhile, the pressing mechanism 60 moves downwards and presses the electronic device 40 to be tested, the sliding plate 22 moves inwards to be connected with the inserting mechanism 50 in an inserting mode to achieve power-on and communication connection, finally, the first power source 21 contracts to drive the door plate 24 to turn upwards to achieve closing of the shielding box, and through the mode, the jig plate 30 provided with the electronic device 40 to be tested extends outwards after the door plate 24 is turned and unfolded, so that the manipulator can conveniently take and place the electronic device 40 to be tested, and the obstacle winding requirement of the manipulator is reduced.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. The draw-out electromagnetic shielding box for the suspension bridge is characterized by comprising a box body (10) with an accommodating cavity, an opening and closing door assembly (20) and a plug-in mechanism (50), wherein the opening and closing door assembly (20) and the plug-in mechanism (50) are arranged in the accommodating cavity, the opening and closing door assembly (20) comprises a first power source (21), a second power source (23), a sliding plate (22) and a door plate (24), the box body (10) is provided with an opening communicated with the accommodating cavity and external air, one side of the door plate (24) is hinged to the edge of the opening, the door plate (24) is connected with the output end of the first power source (21), the first power source (21) drives the door plate (24) to turn over around the edge of the opening so as to open or close the door plate (24), the sliding plate (22) is connected with the output end of the second power source (23), and a jig plate (30) is detachably fixed on the sliding plate (22), the jig plate (30) is provided with electronic equipment (40) to be tested, the second power source (23) is used for driving the sliding plate (22) to move towards the direction close to the opening and extend out of the opening, or driving the sliding plate (22) to move towards the direction far away from the opening and be plugged with the plugging mechanism (50) to realize electrification, the drawbridge drawer type electromagnetic shielding box further comprises a pressing mechanism (60) which is suspended in the accommodating cavity in a vertically movable mode, and the pressing mechanism (60) presses the electronic equipment (40) to be tested downwards when the sliding plate (22) moves towards the direction far away from the opening.

2. The draw-in electromagnetic shielding box of suspension bridge according to claim 1, wherein the pressing mechanism (60) comprises a cross bar (61), a horizontal adjusting slider (62), a vertical adjusting slider (63), an adjusting cylinder (64), and a pressing mechanism, both ends of the cross bar (61) are respectively connected to two opposite inner walls of the box body (10), the cross bar (61) is perpendicular to the moving direction of the sliding plate (22), the horizontal adjusting slider (62) is horizontally slidably connected to the cross bar (61), the bottom of the horizontal adjusting slider (62) has a connecting rod extending downwards, the vertical adjusting slider (63) is vertically slidably sleeved on the connecting rod, the adjusting cylinder (64) is fixed on the vertical adjusting slider (63), and the pressing mechanism is disposed at the bottom of the adjusting cylinder (64), the pressing mechanism is connected with the output end of the adjusting cylinder (64), and the adjusting cylinder (64) drives the pressing mechanism to move up and down along the vertical direction.

3. The draw-in electromagnetic shielding box of claim 2, wherein the pressing mechanism comprises a driving block (651), a first spring positioning pin (652), a fixing base (653) and a bearing (654), the driving block (651) is connected to the output end of the adjusting cylinder (64), the fixing base (653) is disposed at the bottom of the driving block (651), the fixing base (653) is connected to the driving block (651) through the first spring positioning pin (652), and the bearing (654) is rotatably connected to the bottom of the fixing base (653).

4. The draw-in electromagnetic shielding box of hanging bridge as claimed in claim 1, wherein the switch door assembly (20) further comprises a bottom plate (25), the first power source (21) and the second power source (23) are mounted on the bottom plate (25), a slide rail (26) is disposed at the bottom of the sliding plate (22), a sliding block (27) adapted to the slide rail (26) is disposed on the bottom plate (25), and the sliding block (27) is slidably connected to the slide rail (26).

5. The draw-in electromagnetic shielding box of suspension bridge according to claim 1, wherein the sliding plate (22) is provided with locking knobs (222) on both sides, the locking knob (222) comprises a base (2221), a rotating block (2222) and a stop bolt (2223), the base (2221) is fixed on the top surface of the sliding plate (22), a groove (33) is arranged on the edge of the jig plate (30) corresponding to the base (2221), the base (2221) is embedded in the groove (33), the rotating block (2222) is rotatably connected to the top surface of the base (2221) through the stop bolt (2223), the bottoms of the two ends of the rotating block (2222) are provided with ball plungers (2224), the jig plate (30) is provided with positioning holes (31) matched with the ball plungers (2224), the ball plunger (2224) is embedded into the positioning hole (31) to fix the jig plate (30).

6. The draw-in electromagnetic shielding box for suspension bridges of claim 4, wherein the inserting mechanism (50) comprises a mounting seat (51), a lifting guide rod (52), a fixing frame (53), a data connector mounting frame (54) and a data connector (55), the mounting seat (51) is fixed on the bottom plate (25), the lifting guide rod (52) is movably mounted on the mounting seat (51) along the vertical direction, the lifting guide rod (52) extends along the vertical direction, the fixed frame (53) is fixed at the top of the lifting guide rod (52), the data joint mounting frame (54) is mounted on one side of the fixed frame (53) close to the jig plate (30), a plurality of fixing holes (541) which are distributed along the horizontal direction are arranged on the data joint mounting frame (54), the data connector (55) is fixed on the data connector mounting frame (54) through the fixing hole (541).

7. The draw-in electromagnetic shielding box for suspension bridges of claim 6, wherein the fixing frame (53) and the data connector mounting frame (54) are connected by a second spring positioning pin (56).

8. The draw-type electromagnetic shielding box of claim 1, wherein the jig plate (30) is provided with a plurality of stoppers (32) adapted to electronic devices (40) to be tested with different sizes, and the electronic devices (40) to be tested are fixed on the jig plate (30) through the stoppers (32).

9. The draw-in electromagnetic shielding box of hanging bridge according to any one of claims 1 to 8, wherein the box (10) comprises a chassis (13), a housing disposed above the chassis (13), and an upper cover (11) covering the top of the housing, one side of the housing is hinged to the edge of the chassis (13), the other side of the housing is detachably connected to the chassis (13), a receiving cavity is disposed in the chassis (13), a gas spring (15) is disposed in the receiving cavity, one end of the housing detachably connected to the chassis (13) is connected to an output end of the gas spring (15), and the gas spring (15) can support the housing upward.

10. The draw-in electromagnetic shielding box according to claim 9, wherein said housing and said upper cover (11) are fixedly connected by a snap clip (14).