Anti-interference shielding device for electrical cabinet signal control cable incoming line

Abstract

The utility model relates to an anti-interference shielding device for an electrical cabinet signal control cable incoming line, which comprises a sheath a, a sheath b, a buckle, a shielding net and check rings, the check rings are arranged at two ends of the sheath a, the sheath a and the sheath b are both half-split pipes, the shielding net is arranged on lining sides of the sheath a and the sheath b, and the buckle is arranged on the shielding net. The sheath a and the sheath b are combined to form a complete hollow sleeve, the buckles are symmetrically and uniformly arranged on the sheath b along the longitudinal cut edge of the sheath b, the sheath a is provided with corresponding buckle holes matched with the buckles, and the sheath a and the sheath b are provided with a plurality of corresponding fixing holes; according to the utility model, fastening and diameter changing of the incoming signal control cable of the electrical cabinet by the sheath a and the sheath b are realized by using the buckles and the corresponding buckle holes, and protection of cables with different thicknesses is realized by adjusting the combination of the buckles and the buckle holes at different positions; and the anti-interference shielding effect on the incoming signal control cable of the electrical cabinet is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial electrical installation, in particular to an anti-interference shielding device for an incoming line of a signal control cable of an electrical cabinet. Background Art

[0002] In the field of industrial construction, cable laying is an indispensable process in the electrical installation process. Since the production line equipment adopts automatic control, the number of control cables used to transmit various digital and analog signals is huge. The cable path from the field equipment to the electrical cabinet in the main control room is: 1 equipment terminal - 2 electrical piping - 3 upper bridge - 4 cabinet. When laying various cables in the bridge, the design stipulates that cables of different voltage levels need to be laid in layers. If ordinary control cables and signal control cables are laid on the same layer, partitions are set in the bridge to separate them. Therefore, the signal control cables on the path from the equipment terminal to the upper bridge can be free from interference from other types of cables. However, in the electrical cabinets where signal control cables such as various PLC cabinets and frequency conversion cabinets are concentrated in the main control room of the factory, the power cables, ordinary control cables, and signal control cables are intertwined from the bridge mezzanine to the cabinet. They all enter the same electrical cabinet to complete different tasks such as power supply, control, and data feedback. These cables of different voltage levels and functions are mixed together, which seriously affects the accuracy of data transmission by the signal cable, brings troubles to the debugging stage, and is inconvenient to find the cause. Therefore, it is very necessary to study a device to shield signal interference.

[0003] A Chinese patent with publication number CN207801372U discloses a side-opening cable casing. The tube wall of the cable casing is provided with an opening along the axial direction, and the two opposite surfaces of the opening are snap-fitted, a lintel is provided on one side of the opening, and a convex portion that can be embedded in the lintel is provided on the other side, and the radial cross-section of the convex portion is circular; the lintel includes a lintel base in contact with the cable casing, and a lintel card embedded in the convex portion; the lintel card is made of elastic material, and the spacing between its snap-joint points is smaller than the outer diameter of the convex portion; this new type of cable casing is designed with a side opening; it can replace any section of waste cable casing without stopping the equipment at the production site; this side-opening cable casing can adopt a soft wire structure, which effectively avoids space limitation factors during layout and is more convenient; the casing is quickly replaced and saves time; but this type of cable casing cannot change the diameter of the casing according to the total diameter of the cable, and it is necessary to set cables of different diameters according to different cables, and it is costly to customize multiple specifications, and the combination and disassembly of the lintel card and the convex portion are extremely inconvenient, and they need to be snapped one by one, which is particularly easy to scratch the hand and get stuck, increasing the difficulty of replacement and reducing the efficiency of replacement. Summary of the invention

[0004] The utility model provides an anti-interference shielding device for the incoming signal control cable of an electrical cabinet, which realizes the anti-interference shielding effect of the incoming signal control cable of the electrical cabinet, protects cables of different thicknesses by adjusting the combination of the buckle and buckle holes at different positions, and can fix the device to prevent it from falling off.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An anti-interference shielding device for the incoming line of a signal control cable of an electrical cabinet comprises a sheath a, a sheath b, a buckle and a retaining ring, wherein the retaining ring is arranged at both ends of the sheath a, the sheath a and the sheath b are both half-cut tubes, the sheath a and the sheath b both comprise a copper wire metal mesh shielding layer, a stainless steel hose layer and a polyethylene plastic coating layer from the inside to the outside, the sheath a is combined with the sheath b to form a complete hollow casing, the buckle is symmetrically and evenly arranged on the sheath b along the longitudinal cut edge of the sheath b, the sheath a is provided with corresponding buckle holes matching the buckle, and the sheath a and the sheath b are provided with a plurality of corresponding fixing holes.

[0007] Furthermore, the buckle includes a support member and a hook body, the support member is fixed on the sheath a, the hook body is fixedly connected to the support member to form an L-shaped structure, and the size of the hook body matches the size of the buckle hole.

[0008] Furthermore, the sheath a and the sheath b are plastic-coated metal hoses with the same diameter.

[0009] Furthermore, the buckle holes are arranged in plurality along the semi-circular line of the sheath a, and cooperate with the corresponding buckles to form sleeves of different diameters of the sheath a and the sheath b.

[0010] Furthermore, the retaining ring is a rubber retaining ring.

[0011] Furthermore, when the sheath b is combined with the sheath a, both ends of the sheath b are embedded in the retaining ring, and the diameter of the sheath b matches the diameter of the retaining ring.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1) By combining sheath a and sheath b, the anti-interference shielding effect of the incoming signal control cable of the electrical cabinet is achieved;

[0014] 2) The buckle and the corresponding buckle hole are used to realize the fastening and diameter change of the sheath a and the sheath b for the incoming signal control cable of the electrical cabinet, and the protection of cables of different thicknesses is realized by adjusting the combination of the buckle and the buckle holes at different positions;

[0015] 3) Fix the cable and the device by passing the fixing piece through the fixing hole to prevent the device from sliding down due to gravity;

[0016] 4) Easy to disassemble, which improves replacement efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model.

[0018] Figure 2 It is a structural schematic diagram of the buckle of the utility model combined with the outermost buckle hole.

[0019] Figure 3 It is a schematic diagram of the interface of the buckle described in the utility model combined with the farthest buckle hole.

[0020] Figure 4 It is a cross-sectional schematic diagram of the sheath a and the sheath b described in the utility model.

[0021] Figure 5 It is a structural schematic diagram of the buckle described in the utility model.

[0022] Figure 6 It is a schematic diagram of the actual application of the utility model on site.

[0023] In the figure: 1. Sheath a 2. Sheath b 3. Retaining ring 4. Buckle 5. Buckle hole 6. Fixing hole 7. Copper wire metal mesh shielding layer 8. Electrical cabinet 9. Power cable 10. Signal control cable 11. Cable tray 12. Stainless steel hose layer 13. Polyethylene plastic coating layer 14. Support 15. Hook body DETAILED DESCRIPTION

[0024] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings:

[0025] See Figure 1-4, is a schematic diagram of the structure of the utility model. The utility model is an anti-interference shielding device for the incoming line of the signal control cable of an electrical cabinet, comprising a sheath a1, a sheath b2, a buckle 4, and a retaining ring 3, wherein the retaining ring 3 is a rubber retaining ring 3, which is arranged at both ends of the sheath a1; the sheath a1 and the sheath b2 are both half-cut tubes, and the sheath a1 and the sheath b2 both include a copper wire metal mesh shielding layer 7, a stainless steel hose layer 12, and a polyethylene plastic coating layer 13 from the inside to the outside, and the sheath a1 and the sheath b2 are plastic-coated metal hoses with the same diameter, and the sheath a1 and the sheath b2 are combined to form a complete hollow casing, When the sheath b2 is combined with the sheath a1, both ends of the sheath b2 are embedded in the retaining ring 3, and the diameter of the sheath b2 matches the diameter of the retaining ring 3; the buckle 4 is symmetrically and evenly arranged on the sheath b2 along the longitudinal section of the sheath b2, and the sheath a1 is provided with a corresponding buckle hole 5 matching the buckle 4, and a plurality of buckle holes 5 corresponding to the same buckle 4 are arranged along the semi-circular line of the sheath a1, and the buckle 4 is combined with different buckle holes 5 along the corresponding semi-circular line to form cable sleeves of different diameters, and a plurality of corresponding fixing holes 6 are arranged on the sheath a1 and the sheath b2; Figure 5 The buckle 4 includes a support member 14 and a hook body 15. The support member 14 is fixed on the sheath a1. The hook body 15 is fixedly connected to the support member 14 to form an L-shaped structure. The size of the hook body 15 matches the size of the buckle hole 5.

[0026] Working principle: see Figure 6 , various types of cables entering the electrical cabinet 8 are distinguished by different identification plates in the section between the bottom of the cabinet and the interlayer of the cable tray 11. Cables of the same type are bundled and tied into the electrical cabinet 8. After all the cables in the electrical cabinet 8 are laid, the signal control cable 10 bundle is found according to the cable identification plate, and the device slightly larger than the diameter of the cable bundle is selected to pull and lock it, and the sleeve diameter change can be achieved through the buckle hole 5 farther from the buckle 4. In order to prevent the device from sliding down due to gravity, at the entrance of the signal bundle cable entering the electrical cabinet 8, the outer fixing hole 6 of the device is used to fix it to the cable bundle with a nylon binding tape and enter the electrical cabinet 8 to prevent the power cable 9 from interfering with the signal control cable 10.

[0027] The above embodiments are implemented based on the technical solution of the utility model, and detailed implementation methods and specific operation processes are given, but the protection scope of the utility model is not limited to the above embodiments. The methods used in the above embodiments are conventional methods unless otherwise specified.

Claims

1. An anti-interference shielding device for the incoming line of the signal control cable of an electrical cabinet, characterized in that: The utility model comprises a sheath a, a sheath b, a buckle and a retaining ring, wherein the retaining ring is arranged at both ends of the sheath a, the sheath a and the sheath b are both half-cut tubes, the sheath a and the sheath b both comprise a copper wire metal mesh shielding layer, a stainless steel hose layer and a polyethylene plastic coating layer from the inside to the outside, the sheath a is combined with the sheath b to form a complete hollow casing, the buckle is symmetrically and evenly arranged on the sheath b along the longitudinal cut edge of the sheath b, the sheath a is provided with corresponding buckle holes matching the buckle, and the sheath a and the sheath b are provided with a plurality of corresponding fixing holes.

2. The anti-interference shielding device for the incoming line of the signal control cable of the electrical cabinet according to claim 1 is characterized in that: The buckle comprises a support member and a hook body, wherein the support member is fixed on the sheath a, and the hook body is fixedly connected to the support member to form an L-shaped structure, and the size of the hook body matches the size of the buckle hole.

3. The anti-interference shielding device for the incoming line of the signal control cable of the electrical cabinet according to claim 1 is characterized in that: The sheath a and the sheath b are plastic-coated metal hoses with the same diameter.

4. The anti-interference shielding device for the incoming line of the signal control cable of the electrical cabinet according to claim 1 is characterized in that: The buckle holes are arranged in plurality along the semi-circular line of the sheath a, and cooperate with the corresponding buckles to form sleeves of different diameters of the sheath a and the sheath b.

5. The anti-interference shielding device for the incoming line of the signal control cable of the electrical cabinet according to claim 1 is characterized in that: The retaining ring is a rubber retaining ring.

6. The anti-interference shielding device for the incoming line of the signal control cable of the electrical cabinet according to claim 1, characterized in that: When the sheath b is combined with the sheath a, both ends of the sheath b are embedded in the retaining ring, and the diameter of the sheath b matches the diameter of the retaining ring.

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