Optical cable inner core for strain clamp

Abstract

The utility model discloses an optical cable inner core used for a strain clamp, comprising an inner core body, the inner core body is composed of a clamping piece I and a clamping piece II, the inner core body is provided with an installation structure which enables the clamping piece I and the clamping piece II to be aligned and spliced, the inner core body is provided with a wire duct used for inserting an optical cable, and the wire duct is provided with a wire clamp. A meshing structure used for fastening an optical cable is arranged in the wire groove, and a tensioning groove enabling the inner core body to be installed on a strain clamp in a tensioning mode is formed in the inner core body. The strain clamp is simple in structure, an optical cable can be clamped more firmly than a straight tube type wire duct through the meshing structure and the wire duct with the wavy meshing surface, the anti-skid effect of the optical cable is stronger by matching with the convex teeth, the tensioning groove is arranged, the tensioning groove can be supported outwards through the tensioning sheet, an inner core is tensioned in the strain clamp, and the anti-skid effect of the optical cable is improved. And meanwhile, the inner core is integrally trapezoidal, so that the inner core can be placed in a strain clamp with a trapezoidal cavity, and the occlusion force of the optical cable can be tighter by the occlusion structure after the optical cable is tensioned.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of optical cable accessories, especially to an optical cable inner core for strain clamp. BACKGROUND

[0002] In the power grid, the strain clamp can fix the optical cable on the strain pole, is used for overhead insulated conductor and insulating cover matched use, plays the role of insulation protection, and some strain clamps are not used as a single body, and also need to be used with the inner core, the inner core is clamped on the optical cable, and the strain clamp and the inner core are fixedly connected to realize the overhead insulation of the optical cable, the inner core of the strain clamp in the prior art often has the following shortcomings in actual use: because the inner core simply adopts the clamping pressure to clamp and fix the optical cable, the line slip occurs sometimes, and the clamping and fixing are not reliable, therefore, it is necessary to improve. SUMMARY

[0003] In view of the defects in the prior art, the technical problem to be solved by the utility model is to provide an inner core of a strain clamp capable of stably clamping the cable, which does not need a complex structure, is low in cost and simple in structure.

[0004] In order to achieve the above purpose, the utility model provides the following scheme:

[0005] An optical cable inner core for a strain clamp, comprising an inner core body, the inner core body is composed of a clamping piece one and a clamping piece two, an installation structure for aligning and splicing the clamping piece one and the clamping piece two is arranged on the inner core body, a wire slot for inserting the optical cable is arranged on the inner core body, a clamping structure for fastening the optical cable is arranged in the wire slot, and a tensioning groove for tensioning and installing the inner core on the strain clamp is arranged on the inner core body.

[0006] Further, the clamping structure in the utility model comprises wave-shaped clamping surfaces arranged on the left and right walls of the wire slot, and convex teeth are arranged on the wave-shaped clamping surfaces.

[0007] Further, the wire slot in the utility model is composed of two wall surfaces opposite to each other of the clamping piece one and the clamping piece two, and the cross section of the slot is semicircular.

[0008] Further, the clamping piece one and the clamping piece two in the utility model are spliced to form a trapezoidal shape.

[0009] Further, the installation structure in the utility model comprises concave-convex blocks arranged on the opposite side wall surfaces of the clamping piece one and the clamping piece two, the concave-convex blocks are arranged on the upper and lower sides of the wall surfaces of the clamping piece one and the clamping piece two, and the concave-convex blocks on the clamping piece one and the clamping piece two are arranged in an interlaced manner and can be embedded into each other.

[0010] Further, the utility model discloses a tight groove includes setting on the side of clamping piece one and clamping piece two upside side enclose composition, two the side enclose V-shaped setting is provided with the clamping groove on the opposite side wall of two side enclose, is provided with the inlaying spare on the side enclose front side.

[0011] Further, the utility model discloses a clamping groove is used for clamping into the tight piece and makes two side enclosures separate from each other to be tight on the strain clamp.

[0012] Summarized above, the utility model discloses relative to prior art its beneficial effect is:

[0013] The utility model discloses simple structure passes through the occlusion structure, sets up the wave -shaped occlusion surface line groove, can hold the more fastening of the cable than the straight -tube type line groove, cooperates the convex tooth, increases the friction force and bears the axial tension that high span brought about, reaches the purpose of protecting the cable, makes the antiskid effect of cable stronger, and is provided with the tight groove, can through the tight piece and let the inner core tight in the strain clamp outside the tight groove, simultaneously because the whole shape of inner core is trapezoidal, can be inserted into the strain clamp with trapezoidal cavity, after tight, the occlusion structure will occlude the cable more tightly, in addition, the tight groove also can through the tight piece and let the inner core separate from the strain clamp, convenient to dismantle. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the three -dimensional schematic view of the utility model with strain clamp, tight piece installation;

[0015] Figure 2 It is the three -dimensional schematic view of the utility model with strain clamp, tight piece installation;

[0016] Figure 3 It is the three -dimensional schematic view of the utility model;

[0017] Figure 4 It is the three -dimensional exploded schematic view of the utility model;

[0018] Figure 5 It is the plane exploded schematic view of the utility model. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the description and specific implementation of the drawings:

[0020] As Figures 1 to 5The utility model discloses the embodiment preferably provides a kind of optical cable inner core for strain clamp, including inner core body 1, the inner core body 1 is made of clamp piece one 11 and clamp piece two 12, installation structure 2 is arranged on the inner core body 1, clamp piece one 11 and clamp piece two 12 are aligned and split, groove 3 for inserting optical cable is provided on the inner core body 1, and the groove 3 is equipped with the occlusion structure 4 for fastening optical cable, and the inner core body 1 is provided with the tensioning groove 5 that it is tensioned and installed on strain clamp.The inner core in the technical solution can be clamped on optical cable and can be installed and connected with strain clamp, specifically, clamp piece one and clamp piece two are separated, optical cable is inserted in groove, and the occlusion structure is used to tightly bite and fix optical cable, to complete the connection of inner core and strain clamp;Tensioning groove can make inner core tension on strain clamp to realize installation, and also can be used to separate clamp piece one and clamp piece two.Installation structure is used for the close connection installation stability of clamp piece one and clamp piece two.Optical cable is made of skin, aramid, internal optical fiber core.

[0021] The occlusion structure 4 in the utility model includes wave-shaped occlusion surface 41 arranged on the left and right two walls of the groove 3, and convex teeth 42 are arranged on the wave-shaped occlusion surface 41.The wave-shaped occlusion surface cooperates with the convex teeth to increase the friction, so that the wall surface has strong occlusion force on the optical cable, and the aramid of the optical cable has stronger friction when clamped to prevent the inner core body from slipping on the optical cable.

[0022] The groove 3 in the utility model is composed of two wall surfaces opposite to the clamp piece one 11 and the clamp piece two 12, and the cross section of the groove is semicircular, which is used to adapt to the shape of the optical cable, so that the wave-shaped occlusion surface and the convex teeth can closely contact the optical cable.

[0023] The clamp piece one 11 and the clamp piece two 12 are split to form a trapezoidal shape after splitting.The clamp piece one and the clamp piece two are split to form a trapezoidal shape after splitting, which can be inserted into the strain clamp, and the strain clamp in the prior art is provided with a trapezoidal groove for installing the inner core body, so that the strain clamp and the inner core body are closely connected.

[0024] The installation structure 2 in the utility model includes concave-convex blocks 21 arranged on the opposite side wall surfaces of the clamp piece one 11 and the clamp piece two 12, the concave-convex blocks 21 are arranged on the upper and lower sides of the wall surfaces of the clamp piece one 11 and the clamp piece two 12, and the concave-convex blocks 21 on the clamp piece one 11 and the clamp piece two 12 are staggered and can be embedded in each other.The concave-convex blocks of the clamp piece one and the clamp piece two can be tightly installed after being split, the concave-convex blocks have a Great Wall-shaped concave-convex shape, the concave position can be inserted into the convex position, and the stable installation and positioning effect are realized.

[0025] The utility model discloses a tensioning groove 5 includes setting up in the side surrounding 51 group that clamps piece one 11 and clamps piece two 12 upside, two the side surrounding 51 is set up V-shaped, is provided with the clamping slot 52 on the side wall opposite of two side surrounding 51, is provided with the inlay 53 in the side surrounding 51 front side. The V-shaped of side surrounding can let the clamping slot after clamping into the tensioning piece, let the side surrounding be separated and be tensioned in the groove of strain clamp trapezoidal.

[0026] The utility model discloses a clamping slot 52 is used for clamping into the tensioning piece and makes two side surrounding 51 separate each other and be tensioned on strain clamp. The trapezoidal groove of strain clamp and tensioning piece are all conventional prior art, and the tensioning piece can adopt arbitrary sheet object.

[0027] The utility model discloses a clamping slot 52 is used for clamping into the tensioning piece and makes two side surrounding 51 separate each other and be tensioned on strain clamp. The trapezoidal groove of strain clamp and tensioning piece are all conventional prior art, and the tensioning piece can adopt arbitrary sheet object.

Claims

1. An optical cable inner core for a strain clamp, comprising an inner core body (1), characterized in that: The inner core body (1) is composed of the clamping piece one (11) and the clamping piece two (12), the mounting structure (2) for aligning and splicing the clamping piece one (11) and the clamping piece two (12) is arranged on the inner core body (1), the wire slot (3) for inserting the optical cable is arranged on the inner core body (1), the clamping structure (4) for fastening the optical cable is arranged in the wire slot (3), and the tensioning slot (5) for tensioning and mounting the inner core body (1) on the strain clamp is arranged on the inner core body (1).

2. An optical cable inner core for a strain clamp according to claim 1, characterized in that: The clamping structure (4) comprises the wavy clamping surfaces (41) arranged on the left and right walls of the wire slot (3), and the convex teeth (42) are arranged on the wavy clamping surfaces (41).

3. An optical cable inner core for a strain clamp according to claim 1, characterized in that: The wire slot (3) is composed of the slots with semicircular cross sections arranged on the two opposite walls of the clamping piece one (11) and the clamping piece two (12).

4. An optical cable inner core for a strain clamp according to claim 1, characterized in that: The clamping piece one (11) and the clamping piece two (12) are in the shape of trapezoid after being spliced.

5. An optical cable inner core for a strain clamp according to claim 1, wherein: The mounting structure (2) comprises the concave-convex blocks (21) arranged on the opposite side walls of the clamping piece one (11) and the clamping piece two (12), the concave-convex blocks (21) are arranged on the upper and lower sides of the walls of the clamping piece one (11) and the clamping piece two (12), and the concave-convex blocks (21) on the clamping piece one (11) and the clamping piece two (12) are arranged in staggered positions and can be mutually embedded.

6. An optical cable inner core for a strain clamp according to claim 1, characterized in that: The tensioning slot (5) comprises the side enclosures (51) arranged on the upper sides of the clamping piece one (11) and the clamping piece two (12), the two side enclosures (51) are arranged in V shape, the clamping grooves (52) are arranged on the opposite side walls of the two side enclosures (51), and the embedding pieces (53) are arranged on the front sides of the side enclosures (51).

7. An inner core for an optical cable for use in a strain clamp according to claim 6, characterized in that: The clamping grooves (52) are used for clamping the tensioning pieces to separate the two side enclosures (51) from each other and to be tensioned on the strain clamp.

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