Shielding device for preventing electromagnetic interference in weak current

Abstract

The utility model relates to the technical field of electronic protection, in particular to a shielding device for preventing electromagnetic interference in weak current. The utility model provides a shielding device for preventing electromagnetic interference in weak current, which can shield electromagnetic waves near a line joint, reduce interference of an external electromagnetic field on the line joint, reduce signal distortion and improve signal quality. A shielding device for preventing electromagnetic interference in weak current comprises upper and lower inner covers, first half tubes and the like, and the front and rear sides of the inner covers are connected with the first half tubes. According to the utility model, the clamping blocks move outwards to clamp and fix the line, so that the connection part of the line is located inside the inner cover, then the outer cover is sleeved outside the inner cover, and then the edge sealing plate is clamped on the convex blocks, thereby achieving the purposes of shielding electromagnetic waves near the connection part of the line, reducing the interference of an external electromagnetic field on the connection part of the line, and improving the reliability of the line. The signal distortion is reduced; and the signal quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic protection, in particular to a shielding device for preventing weak current from electromagnetic interference. Background Art

[0002] Weak current equipment refers to electronic equipment used in the fields of communication, control, security, and protection outside the power field. It is widely used in various fields including home, business, and industry. They mainly transmit information through cables, optical cables, etc. to achieve information transmission and communication. However, during the operation and use of weak current equipment, the line connections are easily affected by external electromagnetic interference, which can easily lead to signal distortion, thereby affecting the signal quality and is relatively inconvenient.

[0003] Therefore, it is necessary to design a shielding device for preventing weak current electromagnetic interference that can shield electromagnetic waves near the line connection, reduce the interference of external electromagnetic fields on the line connection, reduce signal distortion, and improve signal quality. Utility Model Content

[0004] In order to overcome the disadvantage that weak current equipment is easily affected by external electromagnetic interference during operation and use, which easily leads to signal distortion and thus affects the quality of the signal, the utility model provides a weak current shielding device for preventing electromagnetic interference, which can shield electromagnetic waves near the line connection, reduce the interference of external electromagnetic fields on the line connection, reduce signal distortion, and improve signal quality.

[0005] The technical implementation scheme of the utility model is: a shielding device for preventing electromagnetic interference of weak electricity, including an inner cover, a first half tube, a spring, a clamping block and a connecting piece. The inner cover is provided with two upper and lower parts, the front and rear sides of the inner cover are connected to the first half tube, the front and rear parts of the inner cover are both slidably connected to two clamping blocks, the clamping blocks are connected to the adjacent inner covers with two springs, the lower side of the front part of the upper inner cover is connected to the connecting piece, and the connecting piece is rotatably connected to the lower inner cover.

[0006] More preferably, it further includes buckles, and both the front and rear parts of the upper inner cover are connected with buckles, and the buckles are buckled with the lower inner cover.

[0007] More preferably, it further includes an outer cover and a second half tube, the outer cover is sleeved between the left and right parts of the inner cover, the front and rear sides of the outer cover are connected to the second half tube, and the second half tube is in contact with the adjacent first half tube.

[0008] More preferably, the outer cover and the inner cover are both made of aluminum alloy.

[0009] More preferably, it further comprises a protrusion, and the front and rear sides of the outer cover are connected with two upper and lower protrusions.

[0010] More preferably, an edge sealing plate is further included, and the edge sealing plate is clamped between the upper protrusions and the edge sealing plate is also clamped between the lower protrusions.

[0011] Compared with the prior art, the utility model has the following advantages: 1. The utility model clamps and fixes the circuit by moving the clamping block outward, so that the connection of the circuit is located inside the inner cover, and then the outer cover is put on the outside of the inner cover, and then the edge sealing plate is clamped on the protrusion, so as to achieve the effect of shielding the electromagnetic waves near the connection of the circuit, reducing the interference of the external electromagnetic field on the connection of the circuit, reducing the distortion of the signal, and improving the signal quality.

[0012] 2. The utility model removes the edge sealing plate so that the edge sealing plate no longer contacts the outer cover, then removes the outer cover so that the second half pipe no longer contacts the first half pipe, then rotates the inner cover on the connector so that the buckle no longer engages with the lower inner cover, and then takes out the line, thereby achieving the effect of being able to quickly install and disassemble the device, simple operation, and improving the convenience of using the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0014] Figure 2 It is a schematic exploded view of the three-dimensional structure of the utility model.

[0015] The markings of the components in the accompanying drawings are as follows: 1. inner cover, 2. first half pipe, 3. spring, 4. clamping block, 5. buckle, 6. connector, 7. outer cover, 8. second half pipe, 9. protrusion, 10. edge sealing plate. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] A shielding device for weak current to prevent electromagnetic interference, such as Figure 1 and Figure 2As shown, it includes an inner cover 1, a first half pipe 2, a spring 3, a clamping block 4, a buckle 5, a connecting piece 6, an outer cover 7, a second half pipe 8, a protrusion 9 and an edge sealing plate 10. The inner cover 1 is provided with two upper and lower parts, and the front and rear sides of the inner cover 1 are connected to the first half pipe 2. The front and rear parts of the inner cover 1 are both slidably connected to two clamping blocks 4, and the clamping blocks 4 are connected to two springs 3 between the adjacent inner covers 1. The front and rear parts of the upper inner cover 1 are both connected to buckles 5, and the buckles 5 are clamped with the lower inner cover 1. The front lower part of the upper inner cover 1 The side is connected with a connecting piece 6, and the connecting piece 6 is rotatably connected to the inner cover 1 at the bottom. An outer cover 7 is sleeved between the left and right parts of the inner cover 1. The outer cover 7 and the inner cover 1 are both made of aluminum alloy and can effectively shield electromagnetic waves within a wide frequency range. The front and rear sides of the outer cover 7 are connected with a second half pipe 8, and the second half pipe 8 is in contact with the adjacent first half pipe 2. The front and rear sides of the outer cover 7 are connected with upper and lower protrusions 9, and an edge sealing plate 10 is clamped between the upper protrusions 9, and an edge sealing plate 10 is also clamped between the lower protrusions 9.

[0018] When using the device, first rotate the inner cover 1 on the connecting member 6 so that the buckle 5 is no longer engaged with the lower inner cover 1, then place the line on the first half pipe 2 so that the line contacts the clamping block 4, then rotate the inner cover 1 on the connecting member 6 so that the buckle 5 is engaged with the lower inner cover 1, so that the clamping block 4 moves outward, the spring 3 is squeezed and contracted, and the line is clamped and fixed so that the connection of the line is located inside the inner cover 1, and then the outer cover 7 is sleeved on the outer side of the inner cover 1, and then the edge sealing plate 10 is engaged with the protrusion 9 so that the edge sealing plate 10 contacts the outer cover 7 to fix the outer cover 7. Both the outer cover 7 and the inner cover 1 are made of aluminum alloy and can effectively shield a wide frequency range. The electromagnetic waves inside can be shielded, thereby shielding the electromagnetic waves near the line connection, reducing the interference of the external electromagnetic field on the line connection, reducing the distortion of the signal, and improving the signal quality. When it is necessary to disassemble the device, the edge sealing plate 10 can be removed so that the edge sealing plate 10 no longer contacts the outer cover 7, and then the outer cover 7 is removed so that the second half pipe 8 no longer contacts the first half pipe 2, and then the inner cover 1 on the connecting member 6 is rotated so that the buckle 5 is no longer engaged with the lower inner cover 1, and then the line is taken out, the spring 3 is restored, and the clamping block 4 is driven to move inward and reset, so that the device can be quickly installed and disassembled, the operation is simple, and the convenience of using the device is improved.

[0019] Although the present invention has been described with reference to exemplary embodiments, it should be understood that the present invention is not limited to the disclosed exemplary embodiments. The scope of the following claims is to be accorded the broadest interpretation so as to encompass all modifications and equivalent structures and functions.

Claims

1. A shielding device for weak current to prevent electromagnetic interference, characterized in that: The invention comprises an inner cover (1), a first half tube (2), a spring (3), a clamping block (4) and a connecting piece (6); the inner cover (1) is provided with two upper and lower parts, the front and rear sides of the inner cover (1) are both connected to the first half tube (2); the front and rear parts of the inner cover (1) are both slidably connected to two clamping blocks (4); two springs (3) are connected between the clamping blocks (4) and the adjacent inner covers (1); the lower side of the front part of the upper inner cover (1) is connected to the connecting piece (6); and the connecting piece (6) is rotatably connected to the lower inner cover (1).

2. A weak current shielding device for preventing electromagnetic interference according to claim 1, characterized in that: It also includes a buckle (5), and the front and rear parts of the upper inner cover (1) are both connected with the buckle (5), and the buckle (5) is buckled with the lower inner cover (1).

3. A weak current shielding device for preventing electromagnetic interference according to claim 2, characterized in that: It also comprises an outer cover (7) and a second half pipe (8), the outer cover (7) being sleeved between the left and right parts of the inner cover (1), the front and rear sides of the outer cover (7) being connected to the second half pipe (8), and the second half pipe (8) being in contact with the adjacent first half pipe (2).

4. A weak current shielding device for preventing electromagnetic interference according to claim 3, characterized in that: The outer cover (7) and the inner cover (1) are both made of aluminum alloy.

5. A weak current shielding device for preventing electromagnetic interference according to claim 4, characterized in that: It also includes a protrusion (9), and the front and rear sides of the outer cover (7) are both connected with two upper and lower protrusions (9).

6. A weak current shielding device for preventing electromagnetic interference according to claim 5, characterized in that: It also includes an edge sealing plate (10), the edge sealing plate (10) being clamped between the upper protrusions (9), and the edge sealing plate (10) being clamped between the lower protrusions (9).

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