Instrument anti-electromagnetic interference shielding device

Abstract

The utility model provides an anti-electromagnetic interference shielding device for an instrument. The instrument anti-electromagnetic interference shielding device comprises a mounting base, the top of the mounting base is provided with a second rectangular groove, the top of the second rectangular groove is provided with a first groove and a second groove, the inner wall of the first groove is rotatably connected with a second bidirectional threaded rod, and the inner wall of the second groove is rotatably connected with a first bidirectional threaded rod. According to the instrument anti-electromagnetic interference shielding device provided by the utility model, by rotating the two groups of rotating blocks, the two groups of rotating blocks drive the two groups of rotating shafts to rotate, the two groups of rotating shafts respectively drive the connecting blocks to move relatively through the bidirectional threaded rod I and the bidirectional threaded rod II, and the four groups of connecting blocks respectively drive the limiting blocks to move relatively. The device can be freely adjusted according to the size of an instrument device to be installed, and is high in adaptability and easy to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic interference protection shielding equipment, in particular to an instrument electromagnetic interference protection shielding device. Background Art

[0002] Shielding box is an anti-electromagnetic interference shielding device commonly used in various instruments in substations. The shielding box is a metal box. The electromagnetic inside and outside of the closed metal shell are separated and do not interfere with each other. Shielding is a measure used to reduce the outward or inward penetration of the electromagnetic field. It is generally used to isolate and attenuate radiation interference. Shielding is divided into three types according to its principle: electrostatic shielding, electromagnetic shielding and magnetic shielding.

[0003] The existing shielding box can only be adapted to instrument devices of one model and size during use. For instrument devices of different sizes, the corresponding shielding box can only be replaced, which causes a waste of resources.

[0004] Therefore, it is necessary to provide an instrument anti-electromagnetic interference shielding device to solve the above technical problems. Utility Model Content

[0005] The utility model provides an instrument anti-electromagnetic interference shielding device, which solves the problem of resource waste caused by having to replace corresponding shielding boxes for instrument devices of different sizes.

[0006] In order to solve the above technical problems, the instrument anti-electromagnetic interference shielding device provided by the utility model comprises: a mounting seat, a rectangular groove 2 is provided on the top of the mounting seat, a groove 1 and a groove 2 are respectively provided on the top of the rectangular groove 2, the inner wall of the groove 1 is rotatably connected with a two-way threaded rod 2, the inner wall of the groove 2 is rotatably connected with a two-way threaded rod 1, the left and right ends of the outer wall of the mounting seat are rotatably connected with a rotating shaft, the outer walls of the two groups of the rotating shafts are installed with rotating blocks, the two groups of the rotating shafts pass through the mounting seat and are respectively fixedly connected to the two-way threaded rod 1 and the two-way threaded rod 2, the front and rear ends of the two-way threaded rod 1 and the two-way threaded rod 2 are threadedly connected with connecting blocks, the tops of the four groups of connecting blocks are installed with limit blocks, and the instrument devices are inserted between the four groups of limit blocks, rectangular blocks are installed on the left and right ends of the top of the mounting seat, a cover plate is in contact with the top of the mounting seat, and the left and right sides of the rear end of the cover plate are rotatably connected with the two groups of rectangular blocks.

[0007] Preferably, a rectangular groove is provided at the connection between the front end of the cover plate and the front end of the mounting seat.

[0008] Preferably, a display screen is installed on the top of the instrument device, and a plurality of groups of buttons are installed on the top of the instrument device.

[0009] Preferably, the limiting block is L-shaped, and the cover plate and the mounting seat are both made of anti-interference iron materials.

[0010] Preferably, the outer wall of the rotating block is evenly provided with anti-slip grooves.

[0011] Preferably, a plurality of groups of mounting plates are evenly mounted on the bottom of the mounting seat.

[0012] Compared with the related art, the instrument anti-electromagnetic interference shielding device provided by the utility model has the following beneficial effects:

[0013] The utility model provides an instrument electromagnetic interference shielding device, which drives two groups of rotating shafts to rotate by rotating two groups of rotating blocks, and the two groups of rotating shafts drive the connecting blocks to move relatively through the two-way threaded rod one and the two-way threaded rod two respectively, and the four groups of connecting blocks drive the limit blocks to move relatively respectively, and can be freely adjusted according to the size of the instrument device to be installed. The device has high adaptability and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic structural diagram of a preferred embodiment of the instrument electromagnetic interference shielding device provided by the utility model;

[0015] Figure 2 for Figure 1 A schematic diagram of the internal structure of the mounting base shown;

[0016] Figure 3 for Figure 1 A schematic diagram of the internal structure of the groove 2 shown;

[0017] Figure 4 for Figure 3 An enlarged schematic diagram of part A is shown.

[0018] Numbers in the figure:

[0019] 1. Mounting base, 2. Cover plate, 3. Rectangular block, 4. Mounting plate, 5. Rectangular groove one, 6. Rotating block, 7. Rotating shaft, 8. Groove one, 9. Groove two, 10. Instrument device, 11. Display screen, 12. Button, 13. Limit block, 14. Two-way threaded rod one, 15. Two-way threaded rod two, 16. Rectangular groove two, 17. Connecting block. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0021] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 ,in, Figure 1 A schematic structural diagram of a preferred embodiment of the instrument electromagnetic interference protection shielding device provided by the utility model;

[0022] Figure 2 for Figure 1 A schematic diagram of the internal structure of the mounting base shown; Figure 3 for Figure 1 A schematic diagram of the internal structure of the groove 2 shown; Figure 4 for Figure 3 The instrument anti-electromagnetic interference shielding device comprises: a mounting seat 1, a rectangular groove 2 16 is provided on the top of the mounting seat 1, a groove 1 8 and a groove 2 9 are provided on the top of the rectangular groove 2 16, the groove 1 8 and the groove 2 9 are arranged cross-shaped, the inner wall of the groove 1 8 is rotatably connected with a bidirectional threaded rod 2 15, the inner wall of the groove 2 9 is rotatably connected with a bidirectional threaded rod 14, the left and right ends of the outer wall of the mounting seat 1 are rotatably connected with a rotating shaft 7, the outer walls of the two groups of the rotating shafts 7 are installed with rotating blocks 6, and the two groups of the rotating shafts 7 all penetrate the mounting seat 1 and are fixedly connected to the two-way threaded rod 14 and the two-way threaded rod 15 respectively, the front and rear ends of the two-way threaded rod 14 and the two-way threaded rod 15 are threadedly connected with connecting blocks 17, the tops of the four groups of connecting blocks 17 are all installed with limit blocks 13, and the instrument devices 10 are inserted between the four groups of limit blocks 13. Rectangular blocks 3 are installed on the left and right ends of the top of the mounting seat 1, and the top of the mounting seat 1 is in contact with a cover plate 2, and the left and right sides of the rear end of the cover plate 2 are rotatably connected with the two groups of rectangular blocks 3.

[0023] A rectangular groove 5 is provided at the connection between the front end of the cover plate 2 and the front end of the mounting seat 1. The user inserts a finger into the rectangular groove 5 and flips the cover plate 2 upward to use the instrument device 10.

[0024] A display screen 11 is installed on the top of the instrument device 10 , and a plurality of groups of buttons 12 are installed on the top of the instrument device 10 .

[0025] The shape of the limiting block 13 is L-shaped, and the cover plate 2 and the mounting seat 1 are both made of iron materials that are resistant to interference.

[0026] The outer wall of the rotating block 6 is evenly provided with anti-skid patterns, and the anti-skid patterns are used to increase the friction between the fingers and the rotating block 6 .

[0027] A plurality of mounting plates 4 are evenly mounted on the bottom of the mounting seat 1 , and a plurality of mounting holes are evenly opened on the top of the mounting plates 4 .

[0028] The working principle of the instrument anti-electromagnetic interference shielding device provided by the utility model is as follows: open the cover 2, rotate the two groups of rotating blocks 6 respectively, drive the two groups of rotating shafts 7 to rotate through the two groups of rotating blocks 6, the two groups of rotating shafts 7 drive the connecting blocks 17 to move relatively through the two-way threaded rod 14 and the two-way threaded rod 2 15 respectively, the four groups of connecting blocks 17 drive the limit blocks 13 to move relatively, when the four groups of limit blocks 13 move to a suitable distance, stop rotating the rotating blocks 6, install the instrument device 10 inside the four groups of limit blocks 13, and finally close the cover 2 for use.

[0029] Compared with the related art, the instrument anti-electromagnetic interference shielding device provided by the utility model has the following beneficial effects:

[0030] By rotating the two groups of rotating blocks 6, the two groups of rotating blocks 6 drive the two groups of rotating shafts 7 to rotate. The two groups of rotating shafts 7 respectively drive the connecting blocks 17 to move relative to each other through the two-way threaded rod 14 and the two-way threaded rod 2 15. The four groups of connecting blocks 17 respectively drive the limit blocks 13 to move relative to each other. The device can be freely adjusted according to the size of the instrument device 10 to be installed. The device has high adaptability and is easy to operate.

[0031] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An instrument anti-electromagnetic interference shielding device, characterized in that: include: The mounting seat, the top of the mounting seat is provided with a rectangular groove 2, the top of the rectangular groove 2 is respectively provided with a groove 1 and a groove 2, the inner wall of the groove 1 is rotatably connected with a two-way threaded rod 2, the inner wall of the groove 2 is rotatably connected with a two-way threaded rod 1, the left and right ends of the outer wall of the mounting seat are rotatably connected with a rotating shaft, the outer walls of the two groups of the rotating shafts are installed with rotating blocks, the two groups of the rotating shafts pass through the mounting seat and are respectively fixedly connected to the two-way threaded rod 1 and the two-way threaded rod 2, the front and rear ends of the two-way threaded rod 1 and the two-way threaded rod 2 are threadedly connected with connecting blocks, the tops of the four groups of connecting blocks are installed with limit blocks, and instrument devices are inserted between the four groups of limit blocks, rectangular blocks are installed at the left and right ends of the top of the mounting seat, and a cover plate is in contact with the top of the mounting seat, and the left and right sides of the rear end of the cover plate are rotatably connected to the two groups of rectangular blocks.

2. The instrument anti-electromagnetic interference shielding device according to claim 1, characterized in that: A rectangular groove 1 is provided at the connection between the front end of the cover plate and the front end of the mounting seat.

3. The instrument anti-electromagnetic interference shielding device according to claim 1, characterized in that: A display screen is installed on the top of the instrument device, and a plurality of groups of buttons are installed on the top of the instrument device.

4. The instrument anti-electromagnetic interference shielding device according to claim 1, characterized in that: The shape of the limit block is L-shaped, and the cover plate and the mounting seat are both made of anti-interference iron materials.

5. The instrument anti-electromagnetic interference shielding device according to claim 1, characterized in that: The outer wall of the rotating block is evenly provided with anti-slip grooves.

6. The instrument anti-electromagnetic interference shielding device according to claim 1, characterized in that: A plurality of groups of mounting plates are evenly mounted on the bottom of the mounting seat.

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