Anti-cracking multi-core communication cable

Abstract

The utility model relates to the technical field of cables, and provides an anti-cracking multi-core communication cable, which comprises a mounting seat and cable assemblies, the cable assemblies are arranged in the mounting seat, pressing assemblies are arranged at two ends of the mounting seat, a supporting and fixing assembly is arranged outside the mounting seat, and the supporting and fixing assembly comprises a pair of fixing frames. The fixing frames are fixed to the upper surface and the lower surface of the mounting base, the two ends of the interior of each fixing frame are movably connected with a pair of supporting columns in a sleeved mode, and one ends of the supporting columns are fixedly connected with clamping frames. Through the technical scheme, the problems that the aluminum foil or copper foil shielding layer is easy to crack due to large thermal stress change caused by difference of thermal expansion coefficients when the cable is in a working state in the related technology, particularly, the material is easy to deform due to long-time bending at the position of a bending corner, and the cable cannot be fixed by using an existing tool are solved. And the problems of high signal transmission attenuation, unstable shielding performance and poor durability due to excessive extrusion of the skin of the cable in the prior art are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, and in particular to an anti-cracking multi-core communication cable. Background Art

[0002] On industrial production lines, an important carrier of electromagnetic noise transmission is the various cables used in production line equipment. Some of them are noise sources, while others are disturbed objects. To combat electromagnetic noise interference on electrical lines, a very important way is to use shielded cables. For example, in multi-core communication cables, according to the requirements of thin-diameter preparation, the shielding layer is mostly shielded with copper foil or aluminum foil. When the cable is in working condition, due to the difference in thermal expansion coefficient, a large thermal stress change will occur, causing the aluminum foil or copper foil shielding layer to crack easily, especially at the bending corners. Long-term bending can easily cause material deformation. When fixed with existing tools, the skin will be over-extruded, which greatly weakens the anti-interference ability, the signal transmission attenuation is large, the shielding performance is unstable, and the durability is poor.

[0003] Therefore, improvements are made to address the above problems. Utility Model Content

[0004] The utility model proposes an anti-cracking multi-core communication cable, which solves the problem that when the cable in the related technology is in a working state, due to the difference in thermal expansion coefficient, a large thermal stress change will occur, which makes the aluminum foil or copper foil shielding layer easy to crack, especially at the bending corners. Long-term bending can easily cause material deformation. When fixed with existing tools, the surface will be excessively squeezed, which greatly weakens the anti-interference ability, the signal transmission attenuation is large, the shielding performance is unstable, and the durability is poor.

[0005] The technical solution of the utility model is as follows:

[0006] A mounting seat and a cable assembly, wherein the cable assembly is disposed in the mounting seat;

[0007] A clamping assembly, the clamping assembly being arranged at both ends of the mounting seat;

[0008] A support and fixing component is arranged outside the mounting seat, and the support and fixing component includes a pair of fixing frames, and the fixing frames are fixed to the upper and lower surfaces of the mounting seat. Both ends of the fixing frames are movably connected to a pair of support columns, and one end of the support column is fixedly connected to a clamping frame.

[0009] As a further technical solution, a fastening bolt is rotatably connected inside the side surface of the fixing frame, and a pushing frame is externally connected to the fastening bolt through threaded cooperation, and the pushing frame is attached to the end surface of the supporting column.

[0010] As a further technical solution, the clamping assembly includes a pair of slots, which are opened at both ends of the surface of the mounting seat. A clamping frame is installed in the slot, and the inner surface of the clamping frame and the inner surface of the mounting seat are both provided with fixing teeth. The clamping frame and the slot are screwed together with fixing bolts.

[0011] As a further technical solution, the cable assembly includes a polyurethane elastomer outer sheath, a FEP insulating lining layer is sheathed inside the polyurethane elastomer outer sheath, a polyethylene isolation core frame is sheathed inside the FEP insulating lining layer, a signal conductor and a resin core strip are installed inside the polyethylene isolation core frame, and a star-stranded wire is arranged in the center part of the polyethylene isolation core frame.

[0012] As a further technical solution, the mounting seat is an overall L-shaped right-angle structure, and the appearance of the fixing frame is the same as the overall structure of the mounting seat.

[0013] As a further technical solution, the surface of the clamping frame is a multi-section toothed structure with an inclined angle, and the inclined angles of the tooth surfaces of the clamping frame at the two ends of the fixing frame are opposite.

[0014] As a further technical solution, the fixed tooth portion structure is inserted into the surface of the polyurethane elastomer outer sheath.

[0015] As a further technical solution, the inner diameter of the mounting seat is lower than the outer maximum diameter of the polyurethane elastomer outer sheath.

[0016] The working principle and beneficial effects of the utility model are:

[0017] 1. The utility model is provided with a supporting and fixing assembly. Through the interaction of structures such as a fixing frame, a supporting column, a clamping frame, a fastening bolt and a pushing frame, the clamping frame of the toothed structure surface can be firmly supported between the two walls of the corner of the wall. It does not require accessories such as screws, and can be supported on right-angle structural surfaces of a variety of different materials. It has good stability and strong practicality.

[0018] 2. The utility model is provided with a clamping assembly, which can firmly and tightly clamp the cable in the mounting seat through the internal fixing teeth through the interaction of the slots, the clamping frame and the fixing teeth, so that the cable cannot be pulled loose, and has a good protective effect, which can effectively avoid cracking. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 This is the axonometric drawing of the utility model;

[0022] Figure 3 This is a cross-sectional view of the utility model;

[0023] In the figure: 1. mounting base; 2. supporting and fixing assembly; 2-1. fixing frame; 2-2. supporting column; 2-3. clamping frame; 2-4. fastening bolt; 2-5. pushing frame; 3. clamping assembly; 3-1. slot; 3-2. clamping frame; 3-3. fixing tooth; 3-4. fixing bolt; 4. cable assembly; 4-1. polyurethane elastomer outer sheath; 4-2. FEP insulating inner lining; 4-3. polyethylene isolation core frame; 4-4. signal conductor; 4-5. resin core strip; 4-6. star-twisted wire. DETAILED DESCRIPTION

[0024] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figure 1~Figure 3 As shown, this embodiment provides an anti-cracking multi-core communication cable, including

[0026] A mounting seat 1 and a cable assembly 4, wherein the cable assembly 4 is arranged in the mounting seat 1;

[0027] A clamping assembly 3, which is arranged at both ends of the mounting seat 1;

[0028] The supporting and fixing component 2 is arranged outside the mounting base 1. The supporting and fixing component 2 includes a pair of fixing frames 2-1, which are fixed on the upper and lower surfaces of the mounting base 1. Both ends of the fixing frames 2-1 are movably connected with a pair of supporting columns 2-2. One end of the supporting column 2-2 is fixedly connected with a clamping frame 2-3. The side surface of the fixing frame 2-1 is rotatably connected with a fastening bolt 2-4. The outside of the fastening bolt 2-4 is connected with a pushing frame 2-5 through threaded cooperation. The pushing frame 2-5 is attached to the end surface of the supporting column 2-2.

[0029] In this embodiment, in order to achieve the effect of firmly supporting the mounting base 1 at the corner of the wall, a supporting and fixing component 2 is designed. A fixing frame 2-1 is provided on the upper surface and the lower surface of the mounting base 1. Two supporting columns 2-2 are movably connected to the two ends of the fixing frame 2-1. One end of the support column 2-2 is fixedly connected to a clamping frame 2-3. The surface of the fixing frame 2-1 is rotatably connected to a fastening bolt 2-4, which can be twisted and rotated. A pushing frame 2-5 is connected to the outside of the fastening bolt 2-4 through a threaded fit. The fastening bolt 2-4 can be twisted to drive the pushing frame 2-5 to move, and it is supported on the surfaces on both sides of the corner of the wall and is clamped on the wall through the surface structure.

[0030] Furthermore, the clamping assembly 3 includes a pair of slots 3-1, the slots 3-1 are opened at both ends of the surface of the mounting seat 1, a clamping frame 3-2 is installed in the slots 3-1, the inner surface of the clamping frame 3-2 and the inner surface of the mounting seat 1 are both provided with fixing teeth 3-3, and a fixing bolt 3-4 is screwed and connected between the clamping frame 3-2 and the slots 3-1.

[0031] In the present embodiment, in order to realize that the cable assembly 4 can be tightly compressed in the mounting seat 1, a compression assembly 3 is designed, and grooves 3-1 are provided at both ends of the surface of the mounting seat 1, and a compression frame 3-2 is installed in the groove 3-1, and the inner surface of the compression frame 3-2 and the inner surface of the mounting seat 1 are provided with fixing teeth 3-3, and the fixing teeth 3-3 can fix the cable assembly 4 in the mounting seat 1, and fixing bolts 3-4 are installed on the compression frame 3-2, which can firmly connect the compression frame 3-2 to the mounting seat 1.

[0032] Furthermore, the cable assembly 4 includes a polyurethane elastomer outer sheath 4-1, a FEP insulating lining layer 4-2 is sheathed inside the polyurethane elastomer outer sheath 4-1, a polyethylene isolation core frame 4-3 is sheathed inside the FEP insulating lining layer 4-2, a signal conductor 4-4 and a resin core strip 4-5 are installed inside the polyethylene isolation core frame 4-3, and a star-stranded wire 4-6 is arranged in the central part of the polyethylene isolation core frame 4-3.

[0033] In this embodiment, in order to achieve the anti-cracking effect, a cable assembly 4 is designed. By installing a polyurethane elastomer outer sheath 4-1, a FEP insulating lining layer 4-2, a polyethylene isolation core frame 4-3, a signal conductor 4-4, a resin core strip 4-5 and a star-twisted wire 4-6, the cable can be prevented from excessive thermal expansion through the barrier of the polyethylene isolation core frame 4-3 when the cable is in working condition, thereby reducing thermal stress and avoiding cracking, thereby ensuring stable and reliable shielding performance and better durability.

[0034] Furthermore, the mounting seat 1 as a whole is an L-shaped right-angle structure, and the appearance of the fixing frame 2 - 1 is the same as the overall structure of the mounting seat 1 .

[0035] In this embodiment, the L-shaped structure enables the mounting base 1 to fit on two surfaces at the corner of the wall, thereby improving the fitting and stabilizing effect.

[0036] Furthermore, the surface of the clamping frame 2-3 is a multi-section toothed structure with an inclined angle, and the inclination angles of the tooth surfaces of the clamping frame 2-3 located at the two ends of the fixed frame 2-1 are opposite.

[0037] In this embodiment, the reverse toothed structural surfaces of the two clamping frames 2 - 3 can be inserted into the wall surface when moving outward, and achieve the effect of mutual support and fixation through two relative inclination angles.

[0038] Furthermore, a partial structure of the fixed teeth 3-3 is inserted into the surface of the polyurethane elastomer outer sheath 4-1.

[0039] In this embodiment, the raised tooth surface of the fixed tooth 3 - 3 is directly inserted into the surface of the polyurethane elastomer outer sheath 4 - 1 during installation, thereby pressing the cable so that it cannot be pulled and moved.

[0040] Furthermore, the inner diameter of the mounting seat 1 is lower than the outer maximum diameter of the polyurethane elastomer outer sheath 4 - 1 .

[0041] In this embodiment, the small size of the mounting seat 1 is used to press against the surface of the polyurethane elastic outer sheath 4-1, so that the surface shrinks and the entire cable is wrapped inside, thereby effectively avoiding cracks.

[0042] When installation is required, the cable assembly 4 is inserted into the mounting base 1 as a whole. According to the cable laying position, the mounting base 1 is moved and adjusted. After adjustment, the clamping frame 3-2 is inserted into the groove 3-1, and the fixed teeth 3-3 are pressed on the surface of the polyurethane elastomer outer sheath 4-1. Then the fixing bolts 3-4 are passed through the clamping frame 3-2 and screwed to the mounting base 1, and then it is fitted to the corner of the wall. After pressing and tightening, the fastening bolts 2-4 are tightened, and the pushing frame 2-5 is adjusted forward. The pushing frame 2-5 pushes the support column 2-2 so that the toothed structural surface of the clamping frame 2-3 is inserted into the wall or other structural surfaces, and the metal surface can be directly clamped on the surface through the tooth surface, which has a stable and firm effect.

[0043] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A crack-proof multi-core communication cable, characterized in that: include A mounting seat (1) and a cable assembly (4), wherein the cable assembly (4) is arranged in the mounting seat (1); A clamping assembly (3), wherein the clamping assembly (3) is arranged at two ends of the mounting seat (1); A support fixing assembly (2), the support fixing assembly (2) being arranged outside the mounting seat (1), the support fixing assembly (2) comprising a pair of fixing frames (2-1), the fixing frames (2-1) being fixed to the upper and lower surfaces of the mounting seat (1), the fixing frames (2-1) being movably connected to a pair of support columns (2-2) at both ends inside the fixing frames (2-1), and one end of the support column (2-2) being fixedly connected to a clamping frame (2-3).

2. The anti-cracking multi-core communication cable according to claim 1, characterized in that: A fastening bolt (2-4) is rotatably connected to the inner side surface of the fixing frame (2-1), and a pushing frame (2-5) is externally connected to the fastening bolt (2-4) through threaded engagement, and the pushing frame (2-5) is fitted onto the end surface of the supporting column (2-2).

3. The anti-cracking multi-core communication cable according to claim 1, characterized in that: The clamping assembly (3) comprises a pair of slots (3-1), the slots (3-1) being arranged at both ends of the surface of the mounting seat (1), a clamping frame (3-2) being installed in the slots (3-1), the inner surface of the clamping frame (3-2) and the inner surface of the mounting seat (1) being provided with fixing teeth (3-3), and a fixing bolt (3-4) being screwed and connected between the clamping frame (3-2) and the slots (3-1).

4. The anti-cracking multi-core communication cable according to claim 3, characterized in that: The cable assembly (4) comprises a polyurethane elastomer outer sheath (4-1), a FEP insulating lining layer (4-2) is sleeved and connected inside the polyurethane elastomer outer sheath (4-1), a polyethylene insulating core frame (4-3) is sleeved and connected inside the FEP insulating lining layer (4-2), a signal conductor (4-4) and a resin core strip (4-5) are installed inside the polyethylene insulating core frame (4-3), and a star-twisted wire (4-6) is arranged in the central part of the polyethylene insulating core frame (4-3).

5. The anti-cracking multi-core communication cable according to claim 1, characterized in that: The mounting seat (1) is an L-shaped right-angle structure as a whole, and the fixing frame (2-1) has an appearance that is identical to the overall structure of the mounting seat (1).

6. The anti-cracking multi-core communication cable according to claim 1, characterized in that: The surface of the clamping frame (2-3) is a multi-section toothed structure with an inclined angle, and the tooth surfaces of the clamping frame (2-3) located at the two ends inside the fixing frame (2-1) have opposite inclined angles.

7. The anti-cracking multi-core communication cable according to claim 4, characterized in that: The fixed teeth (3-3) are partially structured and inserted into the surface of the polyurethane elastomer outer sheath (4-1).

8. The anti-cracking multi-core communication cable according to claim 4, characterized in that: The inner diameter of the mounting seat (1) is smaller than the outer maximum diameter of the polyurethane elastomer outer sheath (4-1).

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