Shielding window rapid clamping structure

Abstract

The utility model discloses a shielding window rapid clamping structure, and relates to the technical field of test devices, the shielding window rapid clamping structure comprises a fixing frame, a shielding tool plate and a fixing piece, the fixing frame is used for being fixed on the outer wall of test equipment, and the fixing frame comprises a middle through hole; the shielding tool plate is used for mounting a workpiece and can cover and seal the through hole; the multiple fixing pieces are arranged on the fixing frame, and each fixing piece comprises an abutting part which can movably abut against the side, away from the fixing frame, of the shielding tool plate so as to clamp the shielding tool plate with the fixing frame. The shielding window tool plate has the effect of improving the efficiency of connection and disassembly of the shielding window tool plate.

Description

Technical Field

[0001] The present application relates to the technical field of test devices, and in particular to a shielding window quick clamping structure. Background Art

[0002] The shielding window is a window used by the electromagnetic compatibility laboratory to test the electromagnetic compatibility performance of samples. Through different technical means, the test samples installed on the shielding window tooling board are tested to confirm the electromagnetic compatibility performance of the test samples.

[0003] In order to make the connection of the tooling plate more stable and reduce the impact on the test sample, the shielding window is usually fixed with multiple bolts. Each adjustment requires disassembly and installation of all the fixing bolts. The process is complicated and tedious, and the efficiency needs to be further improved. Utility Model Content

[0004] In order to improve the efficiency of connecting and disassembling the shielding window tooling plate, the present application provides a shielding window quick clamping structure.

[0005] The present application provides a shielding window quick clamping structure, which adopts the following technical solution:

[0006] A shielding window quick clamping structure, comprising:

[0007] A fixing frame, the fixing frame is used to be fixed to the outer wall of the test equipment and includes a through hole in the middle;

[0008] A shielding tooling plate, which is used to install the workpiece and can cover and close the through hole;

[0009] A plurality of fixing members are arranged on the fixing frame, including a contact portion that can be moved to contact the side of the shielding tooling plate away from the fixing frame to clamp the shielding tooling plate with the fixing frame.

[0010] By adopting the above technical solution, the fixing frame provides installation space for the shielding tooling plate. After the workpiece is installed on the shielding tooling plate, the workpiece can be passed through the through hole of the fixing frame into the test equipment, and the through hole is completely closed by the shielding tooling plate to reduce the electromagnetic leakage. Then, by operating the fixing part, the abutment part is moved to the side of the shielding tooling plate away from the fixing frame to clamp the shielding tooling plate with the fixing frame. Since the fixing part is moved by operating the abutment part and the bolt connection is replaced by the abutment method, the efficiency of installation and disassembly is greatly improved.

[0011] Optionally, a plurality of the fixing members are disposed on a surface of the fixing frame close to the shielding tooling plate and are spaced apart around the through hole.

[0012] By adopting the above technical solution, the fixing piece surrounds the circumference of the through hole, and the shielding tooling plate can be clamped from various angles, thereby improving the clamping effect.

[0013] Optionally, a shielding member is also included, which is annular, surrounds the through hole and is fixed to the surface of the fixing frame close to the shielding tooling plate. When the fixing member fixes the shielding tooling plate, the shielding tooling plate and the fixing frame clamp the shielding member.

[0014] By adopting the above technical solution, the shielding member can fill the gap between the shielding tooling plate and the fixed frame when the shielding tooling plate closes the through hole, thereby further reducing the possibility of electromagnetic leakage and improving the shielding effect.

[0015] Optionally, the fixing member also includes a fixing portion, an operating portion, a fulcrum portion and a mounting portion, the fixing portion is used to connect to the fixing frame, the fulcrum portion is rotatably connected to the fixing portion, the middle portion of the operating portion is rotatably connected to the fulcrum portion, and the other end is rotatably connected to the mounting portion, one end of the mounting portion away from the operating portion is rotatably connected to the fixing portion, a protrusion in the middle portion of the mounting portion forms a connecting portion, and the abutting portion is connected to the connecting portion.

[0016] By adopting the above technical solution, when one end of the operating part is rotated, the connecting part can be driven to rotate through the connecting rod structure, so that the abutting part presses against the shielding tooling plate or releases the shielding tooling plate. By increasing the rotational friction force of multiple rotation positions, a better pressing and fixing effect can be achieved.

[0017] Optionally, the abutment portion includes an abutment head and a screw segment connected to one end of the abutment head, the screw segment is passed through the connection portion, and two limit members are threadedly connected to the screw segment, the two limit members are located on both sides of the connection portion and are used to abut against the connection portion.

[0018] By adopting the above technical solution, by providing a screw segment and two limit members, the position of the screw segment at the connecting portion can be adjusted, thereby adjusting the distance between the abutment head and the connecting portion, thereby improving the force condition of the abutment.

[0019] Optionally, the abutment head is an elastic member and is in the shape of a truncated cone with a diameter decreasing in a direction away from the screw section.

[0020] By adopting the above technical solution, the abutment head is an elastic member, which can reduce the possibility of damage caused by rigid extrusion. The abutment head is set to a truncated cone shape, which can further reduce position interference and improve the force effect.

[0021] Optionally, the fixing member includes a fixing portion connected to the fixing frame, the fixing portion is provided with a slide groove, the slide groove is a dovetail groove or a T-shaped groove, and the abutting portion is slidably connected in the slide groove to press against the outer wall of the shielding tooling plate.

[0022] By adopting the above technical solution, the abutting portion is tightened by sliding, and because the slide groove is a dovetail groove or a T-shaped groove, the abutting portion can provide support for the shielding tooling plate, and the abutting portion is not easy to separate from the slide groove.

[0023] Optionally, an elastic guide block is provided on one side of the abutment portion facing the fixed frame, and a surface of the guide block away from the fixed portion is provided as an inclined guide surface, and the guide surface gradually moves away from the fixed frame in a direction close to the middle of the through hole.

[0024] By adopting the above technical solution, when the abutting portion moves toward the middle of the through hole, the elastic guide block can gradually provide a clamping force to the shielding tooling plate, thereby improving the clamping effect and further making the abutting block difficult to move.

[0025] Optionally, the fixing frame is evenly provided with a plurality of threaded holes on the surface around the through hole, and the fixing portion is penetrated with bolts for threaded connection with the threaded holes.

[0026] By adopting the above technical solution, the fixing member can be fixed by connecting the bolts through the fixing part and the threaded hole, and a plurality of threaded holes are provided on the fixing frame, so that the fixing position can be adjusted to improve the applicability.

[0027] Optionally, a positioning pin is further provided on the surface of the fixing frame facing the shielding tooling plate, and the positioning pin is used to abut against the side wall of the shielding tooling plate.

[0028] By adopting the above technical solution, the positioning pins are arranged to abut against the side walls of the shielding tooling plate for positioning, which facilitates the installation of the shielding tooling plate.

[0029] In summary, the present application includes at least one of the following beneficial effects:

[0030] 1. The fixing part is moved by operating the abutment part, and the bolt connection is replaced by abutment, thereby greatly improving the efficiency of installation and disassembly;

[0031] 2. The shielding member can fill the gap between the shielding tooling plate and the fixing frame when the shielding tooling plate closes the through hole, thereby further reducing the possibility of electromagnetic leakage and improving the shielding effect;

[0032] 3. By providing a screw segment and two stoppers, the position of the screw segment at the connection portion can be adjusted, thereby adjusting the distance between the abutment head and the connection portion, thereby improving the abutment force condition;

[0033] 4. The fixing piece can be fixed by connecting the fixing part and the threaded hole through a bolt, and a plurality of threaded holes are provided on the fixing frame, so that the fixing position can be adjusted to improve the applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the present application;

[0035] Figure 2 It is a schematic diagram of the explosion structure of Example 1 of the present application;

[0036] Figure 3 is a schematic structural diagram of a fixing member in Example 1 of the present application;

[0037] Figure 4 It is a schematic diagram of the overall structure of Example 2 of the present application;

[0038] Figure 5 It is a partial structural schematic diagram showing the fixing structure of Example 2 of the present application.

[0039] Explanation of the accompanying drawings: 1. fixing frame; 11. threaded hole; 12. shielding member; 13. through hole; 14. positioning pin; 2. shielding tooling plate; 3. fixing member; 31. fixing portion; 311. slide groove; 32. operating portion; 33. mounting portion; 34. nut; 35. abutment portion; 351. abutment head; 352. screw segment; 353. elastic guide block; 354. guide surface; 36. connecting portion; 37. fulcrum portion. DETAILED DESCRIPTION

[0040] The following is combined with Figure 1-5 This application is described in further detail.

[0041] Example 1

[0042] A shielding window quick clamping structure disclosed in the embodiment of the present application, referring to Figure 1 and Figure 2 The shielding window quick clamping structure includes a fixing frame 1, a shielding tooling plate 2 and a fixing part 3, wherein the fixing frame 1 is used to be fixed to the outer wall of the electromagnetic compatibility test chamber, and the fixing method can be welding or bolt connection. The fixing frame 1 provides an installation position for the shielding tooling plate 2. When the workpiece and the shielding tooling plate 2 are replaced later, the fixing frame 1 does not need to perform corresponding installation and disassembly operations.

[0043] Specifically, the fixing frame 1 includes a through hole 13 in the middle. In this embodiment, the through hole 13 and the shielding tooling plate 2 are both rectangular. Of course, in other embodiments of the present application, the through hole 13 and the shielding tooling plate 2 can also be other shapes to meet the corresponding work requirements. The workpiece can be fixed on one surface of the shielding tooling plate 2 to extend into the through hole 13 for corresponding testing. At this time, the shielding tooling plate 2 can completely cover the through hole 13 to shield the electromagnetic and reduce the possibility of electromagnetic leakage.

[0044] Reference Figure 1 and Figure 2 A shielding member 12 is fixed on the surface of the fixed frame 1 facing the shielding tooling plate 2. The shielding member 12 is annular and surrounds the side of the through hole 13. It can be made of conductive foam material. When the shielding tooling plate 2 is fixed, the shielding member 12 is clamped by the shielding tooling plate 2 and the fixed frame 1, that is, the conductive foam can fill the gap between the shielding tooling plate 2 and the fixed frame 1, thereby further shielding the electromagnetic and reducing the possibility of electromagnetic leakage.

[0045] Reference Figure 1 and Figure 3 , there are multiple fixing members 3, which are connected to the surface of the fixing frame 1 close to the shielding tooling plate 2 and surround the through hole 13. The fixing member 3 includes a fixing portion 31, which is plate-shaped, and bolts are penetrated at positions close to the four corners of the surface. A plurality of threaded holes 11 are evenly opened on the surface of the fixing frame 1, and a bolt can be threadedly connected with a threaded hole 11, so that the fixing member 3 is fixed to the fixing frame 1. Since a plurality of threaded holes 11 are evenly arranged, the position where the fixing member 3 can be fixed can be adjusted, thereby improving applicability.

[0046] Reference Figure 1 and Figure 3 The fixing part 31 also includes a fixing part 31, an operating part 32, a fulcrum part 37 and a mounting part 33. The fixing part 31 is used to connect with the fixing frame 1. One end of the fulcrum part 37 is rotatably connected to the fixing part 31. The middle of the operating part 32 is rotatably connected to the other end of the fulcrum part 37, and the other end of the operating part 32 is rotatably connected to the mounting part 33. One end of the mounting part 33 away from the operating part 32 is rotatably connected to the fixing part 31. The middle part of the mounting part 33 is convex to form a connecting part 36, and the abutting part 35 is connected to the connecting part 36. When the operator rotates the operating part 32, the connecting part 36 can be rotated by the above-mentioned connecting rod structure, so that the abutting part 35 moves to abut the shielding tooling plate 2, or moves out of the moving path of the shielding tooling plate 2.

[0047] Reference Figure 1 and Figure 3, a rubber sleeve is provided on the operating part 32 to facilitate the operator to hold and apply force. The abutment part 35 includes an abutment joint 351 and a screw segment 352 fixedly connected to the abutment joint 351. The screw segment 352 is vertically penetrated through the connecting part 36 and is threadedly connected to two limiters. The two limiters are nuts 34 and are located on both sides of the connecting part 36. The connecting part 36 can be tightened after rotation, thereby limiting the position of the screw segment 352. Of course, the distance from the abutment joint 351 to the connecting part 36 can also be adjusted by adjusting the positions of the two limiters to meet the needs of different usage scenarios. The abutment joint 351 is elastic, for example, it can be a rubber head, and the diameter gradually shortens to a truncated cone shape in the direction away from the screw segment 352, thereby reducing the possibility of force damage caused by rigid extrusion. The abutment joint 351 is set to a truncated cone shape, which can further reduce position interference and improve the force effect.

[0048] A positioning pin 14 is also provided on the surface of the fixing frame 1 facing the shielding tooling plate 2 , and the positioning pin 14 is used to abut against the side wall of the shielding tooling plate 2 for positioning, so as to facilitate the installation of the shielding tooling plate 2 .

[0049] The implementation principle of a quick clamping structure of a shielding window in an embodiment of the present application is as follows: when in use, the workpiece is mounted on the shielding tooling plate 2 and enters the device through the through hole 13, until the shielding tooling plate 2 covers the through hole 13 and the surface abuts against the shielding member 12, multiple operating parts 32 are rotated in sequence to make the abutment joint 351 abut against the shielding tooling plate 2. A larger rotation damping can be set for each rotation area of ​​the fixed part 31, but it is sufficient to allow the operator to rotate, so that when multiple abutment joints 351 abut against the shielding tooling plate 2, support and clamping force can be provided for the shielding tooling plate 2 to limit the movement of the shielding tooling plate 2. Similarly, when disassembling, only the operating part 32 needs to be rotated. The operation process is convenient and quick, which can improve work efficiency.

[0050] Example 2

[0051] The difference between Example 2 of the present application and Example 1 is that the structure of the fixing member 3 is different.

[0052] Reference Figure 4 and Figure 5 The fixing member 3 includes a fixing portion 31 and an abutting portion 35. The fixing portion 31 is provided with a slide groove 311 parallel to the fixing frame 1. The slide groove 311 is a T-slot or a dovetail groove structure. The corresponding abutting portion 35 is also a structure adapted to the slide groove 311 and slides in the slide groove 311, so that the abutting portion 35 can slide to the side of the shielding tooling plate 2 away from the fixing frame 1 after the shielding tooling plate 2 is installed to limit the movement of the shielding tooling plate 2.

[0053] Furthermore, an elastic guide block 353 is provided at one end of the abutting portion 35 facing the fixed frame 1, and the surface of the guide block away from the fixed portion 31 is provided as an inclined guide surface 354, and the guide surface 354 gradually moves away from the fixed frame 1 in a direction close to the middle of the through hole 13. When the abutting portion 35 moves, the guide surface 354 abuts against the surface of the shielding fixture plate 2, and the abutting portion 35 continues to move, thereby further tightening the shielding fixture plate 2. Since the slide groove 311 is a T-slot or dovetail groove structure, it provides a reverse force for the abutting portion 35, thereby also increasing the sliding friction of the abutting portion 35, so that the shielding fixture plate 2 is more secure after installation.

[0054] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A shielding window quick clamping structure, characterized in that: include: A fixing frame (1), the fixing frame (1) being used to be fixed to an outer wall of the test equipment and comprising a through hole (13) in the middle; A shielding tooling plate (2), the shielding tooling plate (2) being used to mount a workpiece and being capable of covering and closing the through hole (13); A plurality of fixing members (3) are provided on the fixing frame (1), comprising an abutment portion (35) capable of moving to abut against a side of the shielding tooling plate (2) away from the fixing frame (1) so as to clamp the shielding tooling plate (2) with the fixing frame (1).

2. A shielding window quick clamping structure according to claim 1, characterized in that: The plurality of fixing members (3) are arranged on a surface of the fixing frame (1) close to the shielding tooling plate (2), and are arranged at intervals around the through hole (13).

3. The shielding window quick clamping structure according to claim 1, characterized in that: It also includes a shielding member (12), which is annular, surrounds the outside of the through hole (13) and is fixed to the surface of the fixing frame (1) close to the shielding tooling plate (2); when the fixing member (3) fixes the shielding tooling plate (2), the shielding tooling plate (2) and the fixing frame (1) clamp the shielding member (12).

4. The shielding window quick clamping structure according to claim 1, characterized in that: The fixing member (3) further comprises a fixing portion (31), an operating portion (32), a fulcrum portion (37) and a mounting portion (33); the fixing portion (31) is used to be connected to the fixing frame (1); the fulcrum portion (37) is rotatably connected to the fixing portion (31); a middle portion of the operating portion (32) is rotatably connected to the fulcrum portion (37), and the other end is rotatably connected to the mounting portion (33); an end of the mounting portion (33) away from the operating portion (32) is rotatably connected to the fixing portion (31); a middle portion of the mounting portion (33) is protruding to form a connecting portion (36); and the abutting portion (35) is connected to the connecting portion (36).

5. A shielding window quick clamping structure according to claim 4, characterized in that: The abutting portion (35) comprises an abutting head (351) and a screw segment (352) connected to one end of the abutting head (351); the screw segment (352) is inserted through the connecting portion (36); and two stoppers are threadedly connected to the screw segment (352); the two stoppers are located on both sides of the connecting portion (36) and are used to abut against the connecting portion (36).

6. A shielding window quick clamping structure according to claim 5, characterized in that: The abutment head (351) is an elastic member and is in the shape of a truncated cone with a diameter that decreases in a direction away from the screw section (352).

7. The shielding window quick clamping structure according to claim 1, characterized in that: The fixing member (3) comprises a fixing portion (31) connected to the fixing frame (1), the fixing portion (31) being provided with a slide groove (311), the slide groove (311) being a dovetail groove or a T-shaped groove, the abutting portion (35) being slidably connected in the slide groove (311) and being used to abut against the outer wall of the shielding tooling plate (2).

8. The shielding window quick clamping structure according to claim 7, characterized in that: An elastic guide block (353) is provided at one end of the abutting portion (35) facing the fixed frame (1); a surface of the elastic guide block (353) away from the fixed portion (31) is provided as an inclined guide surface (354); and the guide surface (354) gradually moves away from the fixed frame (1) in a direction close to the middle of the through hole (13).

9. A shielding window quick clamping structure according to claim 4 or 7, characterized in that: The fixing frame (1) is evenly provided with a plurality of threaded holes (11) on the surface around the through hole (13), and bolts for threaded connection with the threaded holes (11) are passed through the fixing portion (31).

10. The shielding window quick clamping structure according to claim 1, characterized in that: A positioning pin (14) is also provided on the surface of the fixing frame (1) facing the shielding tooling plate (2), and the positioning pin (14) is used to abut against a side wall of the shielding tooling plate (2).

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