Cable termination device

Abstract

The present invention provides a cable termination device, comprising: a wire duct having at least two oppositely arranged support walls and an inlet hole provided on the bottom of the wire duct; and at least one arc adjustment assembly provided on the support wall, the arc adjustment assembly including an adjustment rod movably inserted through the support wall and a cable core fixing member provided at a position where the adjustment rod is close to the cable, and an external force acts on the adjustment rod to drive the cable core fixing member to move towards the support wall. In the present invention, by providing the arc adjustment assembly, it is convenient for an operator to more quickly and accurately adjust the cable core, reduce the difficulty of docking the cable core with the cable lug, and reduce the time and operation difficulty of cable docking.

Description

Technical Field

[0001] The present invention relates to the technical field of cable connection tooling, in particular to a cable termination device. Background Art

[0002] During the terminal termination construction process of the high-voltage power cable in the power engineering project, the high-voltage cable needs to be terminated in the cable room (the cable room is an electrical box with busbar terminals installed). The cable room is processed with a wire entry hole, and the terminal of the high-voltage cable enters the cable room through the above-mentioned wire entry hole. A busbar is installed in the cable room. The general busbar is a wire nose structure commonly used in the industry. The high-voltage cable generally has three cable cores, which are respectively plugged into the three wire noses, and then a wire crimping tool is used to fix the wire nose and the cable core together.

[0003] However, the three wire noses in the cable room are generally arranged in parallel with equal intervals, and among the three cable cores exposed from the high-voltage cable, the two outer cable cores have a certain angle with the middle cable core. In the process of connecting the cable core with the wire nose, the cable cores on both sides need to be bent in order to achieve a good fit between the cable core and the wire nose to ensure the quality of wiring. However, since the high-voltage cable terminal head is relatively short, generally 50-60cm long, and most of them are hard-core cables, coupled with the heavy weight of the cable and the small operating space, it is very difficult to bend the cable core, and it requires high skills, experience, strength and responsibility of the staff. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect of difficulty in terminating high-voltage cables in the prior art, thereby providing a cable termination device.

[0005] In order to solve the above problems, the present invention provides a cable termination device including: a wire trough having at least two oppositely arranged support walls and a wire entry hole arranged on the bottom of the wire trough; and at least one curvature adjustment component arranged on the support wall, the curvature adjustment component including an adjustment rod movably connected to the support wall and a cable core fixing arranged on the adjustment rod near the cable, and an external force acting on the adjustment rod drives the cable core fixing to move toward the support wall.

[0006] Furthermore, the wire trough is constructed as a "U"-shaped trough, the supporting walls are constructed as two symmetrical trough walls of the "U"-shaped trough, and the wire inlet hole is arranged in the middle position of the bottom of the "U"-shaped trough.

[0007] Furthermore, it also includes a cable fixing assembly, which is arranged on the wire entry hole.

[0008] Further, the cable fixing assembly includes: a first hinge, the leaf shape of the first hinge being arc-shaped, and after closing, a circular through groove adapted to the cable is formed; a first fastener disposed on the first hinge to lock the first hinge.

[0009] Further, at both ends of the first hinge along its axial direction, there are flanges bending away from the direction of the arc surface.

[0010] Further, the wire groove is divided into two separate parts by the inlet hole and is respectively connected to the two movable leaf pieces of the first hinge at the dividing position of the inlet hole.

[0011] Further, the adjusting rod is a bolt assembly, and a mounting hole is formed on the support wall, and the bolt assembly is disposed in the mounting hole.

[0012] Further, a plurality of the mounting holes are formed on the support wall at equal intervals.

[0013] Further, a plurality of the mounting holes are symmetrically formed on the two support walls with respect to the center axis of the air inlet hole.

[0014] Further, the cable core fixing member includes: a second hinge, the leaf shape of the second hinge being arc-shaped, and after closing, a circular through groove adapted to the cable core is formed; a second fastener disposed on the second hinge to lock the second hinge.

[0015] Further, the cable core fixing member further includes a connecting member disposed on the second hinge for connecting the second hinge to the adjusting rod.

[0016] Further, a width adjusting assembly is further included and is disposed at the notch of the wire groove.

[0017] Further, the width adjusting device includes: a setscrew, two setscrews are respectively disposed on the two support walls; a rotating rod, and threaded holes with the same rotation direction are provided at both ends of the rotating rod, the threaded holes are matched with the threaded rod, and the rotating rod is connected to the setscrew through the threaded holes.

[0018] The technical solution of the present invention has the following advantages:

[0019] 1. The cable termination device in the present invention includes: a wire groove having at least two oppositely arranged support walls and an inlet hole provided on the bottom of the wire groove; and at least one arc adjusting assembly disposed on the support wall, the arc adjusting assembly includes an adjusting rod movably inserted through the support wall and a cable core fixing member disposed at a position where the adjusting rod is close to the cable, and an external force acts on the adjusting rod to drive the cable core fixing member to move towards the support wall.

[0020] The head of the cable to be terminated enters the wire duct through the above-mentioned wire passing hole. The cable head is stripped to expose the cable core, and the cable core is fixed by the cable core fixing member in the present invention. The adjusting rod is driven by an external force to drive the cable core to bend and deform in the direction of the support wall. During the adjustment process, the operator compares the positions of the three wire noses in the cable compartment and gradually adjusts the cable core to be parallel and corresponding to the jacks of the wire noses to meet the installation standards required by the country. By setting the arc adjustment assembly in the present invention, it is convenient for the operator to adjust the cable core more quickly and accurately, reduce the difficulty of docking the cable core with the wire nose, and reduce the time and operation difficulty of cable docking.

[0021] 2. The wire duct in the cable termination device of the present invention is configured as a "U"-shaped groove, and the support wall is configured as two symmetric groove walls of the "U"-shaped groove, wherein the wire inlet hole is arranged at the middle position of the bottom of the "U"-shaped groove. The freshly stripped cable cores are generally three in number as described in the background art, and the two on the edges are symmetrically arranged with respect to the middle one. In the present invention, the wire duct is designed as a "U" shape, and the wire inlet hole is designed at the central position, ensuring that the cable cores entering the wire duct through the wire inlet hole are located at the center of the wire duct. The advantage of this position is that when performing arc adjustment, it refers to adjusting the two wires on the edges. Since the support wall and the cable cores at the edges are both symmetric with respect to the wire inlet hole, when one side of the cable core is adjusted, the adjustment amount of the cable core on the other side is the same as it, which can speed up the adjustment speed.

[0022] 3. The cable termination device of the present invention further includes a cable fixing assembly arranged on the wire inlet hole. As one of the implementation objects - high-voltage cables, they are heavy. During the termination process, if the operator needs to hold them, it is time-consuming and laborious, and the manual holding stability is poor, which will also affect the subsequent wiring. The cable fixing assembly fixes the cable at the wire inlet hole position, ensuring the stability of the cable head during the wiring process, saving manpower and providing a good operating environment for the subsequent wiring operation.

[0023] 4. The cable fixing assembly in the cable termination device of the present invention includes: a first hinge, the leaf shape of the first hinge is arc-shaped, and after it is closed, it forms a circular through groove adapted to the cable; a first fastener arranged on the first hinge to lock the first hinge. The hinge structure can be directly opened and the cable can be clipped in. Compared with the threading method through holes, it is more labor-saving to fix high-weight cables, and its structure is simple and convenient to assemble.

[0024] 5. At both ends of the first hinge in the axial direction thereof, there are flanges that bend away from the arc surface bending direction, which are approximately beveled at the hypotenuse to form an expanding opening to facilitate the cable to be introduced into the cable fixing assembly.

[0025] 6. In the cable termination device of the present invention, the wire groove is divided into two separate parts by the inlet hole and is respectively connected to the two movable blades of the first hinge at the dividing position of the inlet hole. As one of the implementation manners, this design divides the wire groove into two parts that can be opened and closed. The first hinge is used to achieve the openable and closable design, and at the same time, the inlet hole is designed at the opening and closing position, which further facilitates the placement of the high-voltage cable into the wire groove.

[0026] 7. In the cable termination device of the present invention, a plurality of the mounting holes are formed at equal intervals on the support wall. Firstly, the multiple mounting holes represent that the cable core can be adjusted at multiple positions to make its cooperation with the wire nose more perfect. In addition, the equal-spacing implementation can ensure the consistency of the adjustment positions. For example, if the equal spacing is 5 cm, when one position is adjusted, it can provide an effective reference for the adjustment distance of another position, further improving the adjustment efficiency.

[0027] 8. In the cable termination device of the present invention, a plurality of the mounting holes are symmetrically formed on the two support walls with respect to the center axis of the air inlet hole. As described above, the main adjustment object of the cable core of the high-voltage cable is the two outer cable cores. For the symmetrically formed support wall structure, only the position of the adjusting rod on one support wall needs to be adjusted accurately, and the other side is the same, which can speed up the cable termination.

[0028] 9. The cable termination device of the present invention further includes a width adjustment component, which is arranged at the notch of the wire groove, mainly to strengthen the structural strength at the notch and ensure that the wire groove will not deform during the process of adjusting the arc of the cable core. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific implementation manners of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific implementation manners or the prior art. Obviously, the following drawings are some implementation manners of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0030] Figure 1 Structural schematic diagram of the cable assembly in the cable termination device in the embodiment provided by the present invention;

[0031] Figure 2 Structural schematic diagram of the cable termination device in the embodiment provided by the present invention;

[0032] Figure 3 Structural schematic diagram of the arc adjustment component in the embodiment provided by the present invention;

[0033] Figure 4 Structural schematic diagram of the width adjustment component in the embodiment provided by the present invention.

[0034] Description of the reference numerals:

[0035] 1 - wire groove; 11 - support wall; 111 - mounting hole;

[0036] 2 - cable fixing assembly; 21 - first hinge; 22 - first fastener; 211 - flanging;

[0037] 3 - radian adjustment assembly; 31 - adjustment rod; 32 - cable core fixing assembly; 321 - second hinge; 322 - second fastener; 323 - connecting piece;

[0038] 4 - width adjustment assembly; 41 - setscrew; 42 - rotating rod. Detailed implementation manners

[0039] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0040] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0041] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0042] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0043] Embodiment

[0044] Figures 1 to 4As shown in the figure, a cable termination device provided in this embodiment includes: a wire groove 1 having at least two oppositely arranged support walls 11 and an inlet hole provided at the bottom of the wire groove 1; and at least one arc adjustment component 3 is provided on the support wall 11. The arc adjustment component includes an adjustment rod 31 movably inserted through the support wall 11 and a core fixing member 32 provided at the end of the adjustment rod 31 close to the cable. An external force acts on the adjustment rod 31 to drive the core fixing member 32 to move towards the support wall 11.

[0045] The object of use of the cable termination device in this embodiment is an external high-voltage cable, the core of which generally has three cores and is relatively heavy.

[0046] Of course, in order to improve the consistency or accuracy of termination, the cable termination device in this embodiment is also applicable to ordinary cables.

[0047] The wire groove 1 in this embodiment has two support walls 11. The support walls 11 are the groove walls in the corresponding groove structure. The two support walls 11 and the bottom of the groove form a wire groove space for accommodating the head of the cable.

[0048] During use, the head of the high-voltage cable to be terminated is placed in the wire groove 1 through the inlet hole. The core of the cable is stripped out from the cable head, and the core is fixed by the core fixing member 32 in this embodiment. An external force drives the adjustment rod 31 to drive the core to bend and deform towards the support wall 11. During the adjustment process, the operator compares the positions of the three wire noses in the cable compartment and gradually adjusts the core to be parallel to the jacks of the wire noses to meet the installation standards required by the state. By setting the arc adjustment component 3 in this embodiment, it is convenient for the operator to adjust the core more quickly and accurately, reduce the difficulty of docking the core with the wire nose, and reduce the time and operation difficulty of cable docking.

[0049] As Figure 2 As shown in the figure, the wire groove 1 in this embodiment is processed into a "U"-shaped groove. The support walls 11 are used as the two symmetric groove walls of the "U"-shaped groove, and the inlet hole is provided at the middle position of the bottom of the "U"-shaped groove. The freshly stripped core is generally three in number as described in the background art, and the two on the edges are symmetrically arranged with respect to the middle one. The wire groove is designed as a "U" shape, and the inlet hole is designed at the center position, ensuring that the core entering the wire groove through the inlet hole is located at the center of the wire groove. The advantage of this position is that during arc adjustment, only the two outer cores are adjusted. Since the support wall and the outer cores are symmetric with respect to the inlet hole, when one side of the core is adjusted, the adjustment amount of the other side of the core is the same, which can speed up the adjustment speed.

[0050] Of course, in some other embodiments, the shape of the wire groove 1 can also be circular, square, "V"-shaped, etc., as long as it can accommodate the cable.

[0051] As described above, the implementation object of this embodiment is a high-voltage cable, which is heavy. During the termination process, if the operator needs to hold it, it is time-consuming and laborious, and the manual holding stability is poor, which will also affect the subsequent wiring. Therefore, in this embodiment, a cable fixing component 2 is installed at the position of the inlet hole. The cable fixing component 2 fixes the cable at the inlet hole position, ensuring the stability of the cable head during the wiring process, saving manpower and providing a good operating environment for the subsequent wiring operation.

[0052] In some other implementation manners, such as when the height of some high-voltage cables from the ground is very low during implementation and there is no need for the operator to lift them or the lifting height is very low and can be supported by a backing plate, the cable fixing component 2 in this embodiment can be not provided to make the structure simple and maintain a low manufacturing cost.

[0053] Figure 1 and Figure 2 The structure of the cable fixing component 2 is shown in. First, the inlet hole in this embodiment divides the wire groove 1 into two separate parts at the bottom of its groove. The fixing component 2 installs a first hinge 21 at the inlet hole and is respectively connected to the two movable blades of the first hinge 21 at the dividing position of the inlet hole, so that the wire groove 1 can be opened and closed under the action of the first hinge 21. Combining the wire groove 1 with the cable fixing component 2 enables it to be opened and closed in a split manner. Compared with threading the cable through the inlet hole, the requirements for the cable placement operation are lower.

[0054] To adapt to the shape of the cable, the leaf shape of the first hinge 21 is arc-shaped. After closing, it forms a circular through groove that fits the cable to maximize the contact area and thus ensure the fixing strength. Further, a first fastener 22 is also installed at the closed end of the first hinge 21 to lock the first hinge 21. Specifically, a pair of mounting rings are respectively welded on the two movable blades of the first hinge 21. The first fastener 22 is a bolt, which is inserted into the mounting ring, and the first hinge 21 is locked by screwing the nut.

[0055] To conveniently introduce the cable into the cable fixing component 2, flanges 211 that bend away from the arc surface direction are processed at both ends of the first hinge 21 along its axial direction to form a flared structure at both ends of the first hinge 21, and at the same time, it can also prevent the edge of the first hinge 21 from cutting the cable.

[0056] The following elaborates on the radian adjustment device:

[0057] As Figure 3As shown, the adjusting rod 31 is a bolt assembly. An installation hole 111 is formed on the support wall 11. The bolt assembly is movably inserted through the installation hole 111. The cable core fixing assembly 32 is fixed to one end of the screw rod. Rotating the nut on the outer side of the support wall 11 drives the screw rod to rotate outwards, thereby driving the cable core fixing member 32 to move towards the support wall 11.

[0058] Furthermore, the four installation holes 111 are formed on the support wall 11 at equal intervals. Firstly, multiple installation holes represent that the cable core can be adjusted at multiple positions to make its cooperation with the wire nose more perfect. Secondly, the equal-spacing implementation can ensure the consistency of the adjustment positions. For example, if the equal spacing is 5 cm, when one position is adjusted, it can provide an effective reference for the adjustment distance of another position, further improving the adjustment efficiency.

[0059] Even further, the installation holes 111 are symmetrically formed on the two support walls 11 with respect to the center axis of the incoming wire hole. As mentioned above, the main objects to be adjusted for the cable cores of high-voltage cables are the two outer cable cores. For the symmetrically formed support wall structure, only the position of the adjusting rod on one side of the support wall needs to be adjusted accurately, and the other side is the same, which can speed up the termination of the cable.

[0060] In this embodiment, the cable core fixing member 32 includes: a second hinge 321, the leaf shape of the second hinge 321 is arc-shaped, and after its closure, a circular through groove adapted to the cable core is formed; a second fastener 322, installed on the second hinge 321 to lock the second hinge 321, and its structure is the same as that of the first hinge 21, so it will not be elaborated here.

[0061] The cable core fixing member 32 in this embodiment further includes a connecting member 323, installed on the second hinge 321, for connecting the second hinge 321 to the adjusting rod 31. In this embodiment, the connecting member 323 is an installation ring, and the above-mentioned screw rod is inserted through the installation ring. Since the bolt in this embodiment is a T-shaped bolt, limit fixation within the installation ring can be achieved. <{

[0062] In some other embodiments, for the simplicity of the structure and the simplicity of the installation operation, the adjusting rod 31 can be directly welded to the second hinge 321.

[0063] To strengthen the structural strength at the notch and ensure that the wire groove does not deform during the process of adjusting the curvature of the cable core, a width-adjusting component 4 is further included in this embodiment, installed at the notch of the wire groove 1.

[0064] Such as Figure 4As shown in the figure, the width adjustment device 4 includes: a setscrew 41, on which clamping grooves are machined and which is clamped on the two support walls 11; a rotating rod 42, at both ends of which threaded holes with the same thread direction are provided, the threaded holes are matched with the threaded rods, and the rotating rod 42 is connected to the setscrew 41 through the threaded holes. By rotating the rotating rod 42, the distance between the two support walls 11 can be adjusted to ensure that the position of the notch does not deform.

[0065] Obviously, the above embodiments are merely examples for clear illustration and not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. A cable termination device, characterized in that, Comprising: A wire duct (1), having at least two oppositely arranged support walls (11) and an inlet hole provided on the bottom of the wire duct (1); And at least one arc adjustment component (3) is provided on the support wall (11), the arc adjustment component includes an adjustment rod (31) movably inserted through the support wall (11) and a cable core fixing member (32) provided at a position of the adjustment rod (31) close to the cable, and an external force acts on the adjustment rod (31) to drive the cable core fixing member (32) to move towards the support wall (11); It further includes a cable fixing component (2), provided on the inlet hole; It further includes a width adjustment component (4), provided at the notch of the wire duct (1); The width adjustment component (4) includes: Set screws (41), two of the set screws (41) are respectively provided on the two support walls (11); A rotating rod (42), both ends of which are provided with threaded holes with the same rotation direction, the threaded holes are matched with the threaded rods, and the rotating rod (42) is connected to the set screw (41) through the threaded holes.

2. The cable termination device according to claim 1, wherein The wire duct (1) is configured as a "U" - shaped groove, and the support wall (11) is configured as two symmetric groove walls of the "U" - shaped groove, wherein the inlet hole is provided at the middle position of the bottom of the "U" - shaped groove.

3. The cable termination device according to claim 1, wherein, The cable fixing component (2) includes: A first hinge (21), the leaf shape of the first hinge (21) is arc - shaped, and after it is closed, it forms a circular through - slot adapted to the cable; A first fastener (22), provided on the first hinge (21) to lock the first hinge (21).

4. The cable termination device according to claim 3, characterized in that, Both ends of the first hinge (21) along its axis are provided with flanges (211) deviating from the bending direction of the arc surface.

5. The cable termination device according to claim 3, characterized in that, The wire duct (1) is divided into two separate parts by the inlet hole and is respectively connected to two movable leaf pieces of the first hinge (21) at the dividing position of the inlet hole.

6. The cable termination device according to claim 1, wherein The adjustment rod (31) is a bolt assembly, and an installation hole (111) is formed on the support wall (l1), and the bolt assembly is arranged in the installation hole (111).

7. The cable termination device according to claim 6, wherein A plurality of the installation holes (111) are formed on the support wall (11) at equal intervals.

8. The cable termination device according to any one of claims 6 or 7, characterized in that, A plurality of the installation holes (111) are symmetrically formed on the two support walls (11) with respect to the center axis of the inlet hole.

9. The cable termination device according to claim 8, wherein, The cable core fixing member (32) includes: A second hinge (321), the leaf shape of the second hinge (321) is arc - shaped, and after it is closed, it forms a circular through - slot adapted to the cable core; A second fastener (322), provided on the second hinge (321) to lock the second hinge (321).

10. The cable termination device according to claim 9, wherein, The cable core fixing member (32) further includes a connecting member (323), provided on the second hinge (321) for connecting the second hinge (321) to the adjustment rod (31).

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