Torque locking shunt wire clamp
Technical Field
The utility model relates to the technical field of splicing wire clamps in overhead lines, in particular to a torque locking shunt wire clamp.
Background
The overhead line mainly refers to an overhead open line, is erected above the ground and is a power transmission line for transmitting electric energy by fixing a power transmission conductor on a tower erected on the ground through an insulator. During T connects among driven overhead distribution lines, adopt directly to twine the branch line on overhead line conductor usually, this kind of mode often can lead to the wiring insecure, takes place the broken string.
Chinese patent document CN209329194U discloses a torque lock clamp, including the fastener main part, be equipped with the wire casing in the fastener main part, be equipped with the protruding form thorn groove of a plurality of in the wire casing, be equipped with the torque bolt in the fastener main part, torque bolt below is equipped with the flow distribution plate that can with torque bolt swing joint, be equipped with the protruding groove of a plurality of on the flow distribution plate, be equipped with branch line wiring mouth in the fastener main part, be equipped with the screw thread in the branch line wiring mouth, branch line wiring mouth top is equipped with the connecting hole, and branch line pretension bolt passes through connecting hole and the cooperation of branch line wiring mouth.
However, the moment locking wire clamp has the following problems in practical use:
1. because the flow distribution plate and the torque bolt are riveted and connected, the flow distribution plate is easily influenced by external wind power to cause the deflection problem when being used for a long time, so that the stress of the overhead line is uneven when being extruded, the contact area of the flow distribution plate and the overhead line is reduced, namely, the problem of poor contact occurs, the resistance between the wire clamp main body and the overhead line is large, the local overheating phenomenon is formed, and certain potential safety hazards exist.
SUMMERY OF THE UTILITY MODEL
Therefore, the technical problem to be solved by the utility model is to overcome the problems that the shunt plate in the prior art is deflected when being used for a long time, so that the shunt plate is in poor contact with an overhead line and is easy to generate local overheating, so that the torque locking shunt wire clamp with the wire clamping force kept stable when being used for a long time, the wire clamping force tightly contacted with the overhead line and the local overheating cannot occur is provided.
The utility model provides a torque locking shunt wire clamp which comprises a wire clamp body, a main wire cavity and a branch wire cavity, wherein the main wire cavity and the branch wire cavity are arranged on the wire clamp body, an opening is formed in the top of the main wire cavity, an insertion block is fixed at the opening, a crimping structure used for extruding a main wire in a matched mode with the main wire cavity is arranged on the insertion block, the crimping structure comprises a first torque bolt connected to the insertion block in a threaded mode, a crimping block arranged at one end of the first torque bolt and a spring sleeved on the first torque bolt, and two ends of the spring are abutted to the crimping block and the insertion block respectively.
In foretell moment locking reposition of redundant personnel fastener, the inserted block is fixed in through direction limit structure the opening part, direction limit structure is including setting up relatively two guide ways on the lateral wall of opening part both sides, and set up respectively the inserted block both sides with two guide rails of guide way grafting complex, and set up respectively two the two spacing bolts of guide rail one end tip, spacing bolt along with the guide rail inserts with the fastener body offsets during the guide way.
In the moment locking shunt wire clamp, the cross section of the main wire cavity is arc-shaped, the bottom of the main wire cavity is provided with a plurality of convex teeth, and the convex teeth and the crimping block are matched to clamp the main wire.
In the torque locking shunt wire clamp, the top of the branch wire cavity is provided with a threaded hole, and a second torque bolt for extruding and fixing the branch wire is connected in the threaded hole in a threaded manner.
In the torque locking shunt wire clamp, the first torque bolt and the second torque bolt are provided with a first bolt head and a second bolt head at one end of the first torque bolt and the second torque bolt along the height direction of the first torque bolt and the second torque bolt, and the first bolt head can be broken when the first torque bolt or the second torque bolt is installed in place and separated from the second bolt head.
In the torque locking shunt wire clamp, a positioning groove is formed between the head of the first bolt and the head of the second bolt, and a positioning sealing ring is arranged in the positioning groove.
In the torque locking shunt wire clamp, the side walls of the two sides of the branch wire cavity are provided with observation windows for observing the installation condition of the branch wires.
In the torque locking shunt wire clamp, the crimping block is riveted and connected with the first torque bolt.
Compared with the prior art, the technical scheme of the utility model has the following advantages:
1. when the shunt wire clamp is installed, a first torque bolt, a crimping block and a spring are fixed on an insertion block, then the insertion block is fixed at the opening, then the crimping block is driven to extrude a main conductor by rotating the first torque bolt, so that the main conductor is fixed in a main conductor cavity, then the spring sleeved on the first torque bolt is utilized to apply an elastic force moving towards the main conductor to the crimping block, so that the crimping block can be tightly attached to the main conductor, and finally a branch conductor is fixed in a branch conductor cavity, so that the installation of the shunt wire clamp is completed, the design has the advantages that the elastic force of the spring is utilized to keep the crimping block at a constant pressing force, the crimping block is ensured to be tightly contacted with the main conductor, so that the problem of local heating caused by poor contact is avoided, improve the stability of the product in long-term use.
2. According to the torque locking shunt wire clamp provided by the utility model, the insertion and the fixation of the insertion block are realized by the insertion and the matching of the guide groove and the guide rail, and meanwhile, the insertion of the insertion block is limited by arranging the limiting bolt so as to remind workers that the insertion block is inserted in place.
Drawings
In order to more clearly illustrate the detailed description of the utility model or the technical solutions in the prior art, the drawings that are needed in the detailed description of the utility model or the prior art will be briefly described below.
FIG. 1 is a front view of a torque locking shunt clamp provided by the present invention;
FIG. 2 is a schematic structural diagram of the insert shown in FIG. 1;
FIG. 3 is an exploded view of a torque locking shunt clamp provided by the present invention;
description of reference numerals:
1-a wire clamp body; 11-main leader lumen; 12-branch guide wire cavity; 13-opening; 14-a guide groove; 15-convex teeth; 16-a threaded hole; 17-a second torque bolt; 18-a viewing window;
2-inserting blocks; 21-a first torque bolt; 22-a crimp block; 23-a spring; 24-a guide rail; 25-a limit bolt; 26-head of first bolt; 27-second bolt head; 28-positioning grooves; 29-positioning the sealing ring.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Example 1
The present embodiment is described in detail below with reference to the accompanying drawings:
the utility model provides a torque locking shunt wire clamp as shown in fig. 1-3, which comprises a wire clamp body 1, and a main wire cavity 11 and a branch wire cavity 12 which are arranged on the wire clamp body 1, wherein an opening 13 is arranged at the top of the main wire cavity 11, an insertion block 2 is fixed at the opening 13, a crimping structure which is used for being matched with the main wire cavity 11 to extrude a main wire is arranged on the insertion block 2, the crimping structure comprises a first torque bolt 21 which is in threaded connection with the insertion block 2, a crimping block 22 which is arranged at one end of the first torque bolt 21, and a spring 23 which is sleeved on the first torque bolt 21, and two ends of the spring 23 are respectively abutted against the crimping block 22 and the insertion block 2.
The above embodiment is a core technical solution of this embodiment, when installing the shunt wire clamp, first fixing the first torque bolt 21, the crimping block 22 and the spring 23 on the insert block 2, then fixing the insert block 2 at the opening 13, then rotating the first torque bolt 21 to drive the crimping block 22 to extrude the main conductor, so that the main conductor is fixed in the main conductor cavity 11, then applying an elastic force moving towards the main conductor to the crimping block 22 by using the spring 23 sleeved on the first torque bolt 21, so as to ensure that the crimping block 22 can be tightly attached to the main conductor, and finally fixing the branch conductor in the branch conductor cavity 12, thereby completing installation of the shunt wire clamp, and the advantage of this design is that the elastic force of the spring 23 is used to keep the constant pressing force of the crimping block 22, so as to ensure that the crimping block 22 and the main conductor are tightly contacted, thereby avoiding the problem of local heating caused by poor contact and improving the stability of the product in long-term use.
As a specific structure, the plug block 2 is fixed at the opening 13 through a guiding limit structure, the guiding limit structure comprises two guide grooves 14 oppositely arranged on the side walls at the two sides of the opening 13 and two guide rails 24 respectively arranged at the two sides of the plug block 2 and in splicing fit with the guide grooves 14, the plug block 2 is quickly installed and fixed by utilizing the splicing fit of the guide grooves 14 and the guide rails 24, because two limit bolts 25 are respectively arranged at the end parts of one ends of the two guide rails 24, when the guide rails 24 are inserted into the guide grooves 14, the limit bolts 25 move along with the guide rails 24 to abut against the wire clamp body 1 to play a role of limiting installation, thereby reminding workers that the plug block 2 is spliced in place, the structure is simple, the installation is convenient, the further arrangement is realized, the cross section of the main wire cavity 11 is arc-shaped, and the bottom of the main wire cavity is provided with a plurality of convex teeth 15, the contact area between the main guide wire cavity 11 and the main guide wire is increased by arranging the convex teeth 15, so that the friction force between the main guide wire cavity 11 and the main guide wire is increased, and the main guide wire is reliably clamped in the main guide wire cavity 11.
As shown in fig. 3, a threaded hole 16 is formed in the top of the branch conductor cavity 12, a second torque bolt 17 for extruding a fixed branch conductor is connected to the threaded hole 16 in an internal thread manner, and after the branch conductor is inserted into the branch conductor cavity 12, the branch conductor is extruded by rotating the second torque bolt 17, so that the branch conductor is fixed in the branch conductor cavity 12, and the structure is simple and the installation is convenient.
As a specific structure, the first torque bolt 21 and the second torque bolt 17 are provided with a first bolt head 26 and a second bolt head 27 at one end of the first torque bolt 21 and the second torque bolt 17 along the height direction thereof, because the torque values set by the first torque bolt 21 and the second torque bolt 17 are constant, when the first torque bolt 21 and the second torque bolt 17 are rotated to reach the preset torque value, the first bolt head 26 will break and be separated from the second bolt head 27, that is, the first torque bolt 21 or the second torque bolt 17 is installed in place, further, a positioning groove 28 is provided between the first bolt head 26 and the second bolt head 27, a positioning sealing ring 29 is provided in the positioning groove 28, and a limit protrusion appears between the first bolt head 26 and the second bolt head 27 by providing the positioning sealing ring 29, therefore, the position of the socket wrench is limited, and the problem that the first bolt head 26 cannot be normally broken because the socket wrench is sleeved on the first bolt head 26 and the second bolt head 27 at the same time is avoided.
As shown in fig. 1, the side walls of the two sides of the branch conductor cavity 12 are provided with observation windows 18 for observing the installation condition of the branch conductor, so that a worker can see whether the branch conductor is pressed by the second torque bolt 17 through the observation windows 18, and the installation efficiency is improved.
As a specific structural arrangement, the crimping block 22 is riveted with the first torque bolt 21, so that the installation is convenient, the connection is reliable, and the splicing block 2, the crimping block 22 and the wire clamp body 1 need to be tinned when the torque locking shunt wire clamp is used for the transition use of copper-aluminum wires.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the utility model.