Multipurpose cable head connector

Abstract

The utility model relates to a multipurpose cable head connector, which comprises a linear body made of metal materials and a T-shaped body made of metal materials, and is different from the prior art in that two ends of the linear body are respectively provided with inner screw holes with opposite spiral directions, a conductor of a cable is fixedly connected with a screw tube made of metal materials, and the screw tube can be screwed into the inner screw holes. According to the T-shaped body, a metal ball cup is fixedly connected to the middle of the linear body, the spherical surface of the ball cup is connected with a metal ball, and the ball is fixedly connected with a metal screw. And the screw rod can also be screwed into the inner screw hole. The utility model provides an economical, safe, fast, stable and reliable connection mode.

Description

Technical Field

[0001] The utility model patent relates to a cable head connector, belonging to the field of mechanical standard parts. Background Art

[0002] Connection is an indispensable part of erecting and installing various cables, especially in long-distance power transmission projects involving thousands of kilometers of UHV overhead cables, railway electrification overhead cables, submarine power cables, and underground cable projects. During the construction process, it is crucial to find a safe, efficient, material-saving, fast, and conductive cable head connection method.

[0003] At present, the connection methods of cable heads include explosion pressure, clamp pressure, transition wire clamp connection, tinning plug-in connection or overlap connection, etc. These methods have their own advantages and disadvantages, and generally have the problems of long time consumption, large number of consumables, complex operation or limited application range. Especially in high-altitude operations or long-distance cable erection projects, the connection problem of cable heads is even more difficult to solve. Utility Model Content

[0004] This utility model patent aims to provide a multi-purpose cable head connector, and the technical solution adopted is:

[0005] A multi-purpose cable head connector includes a font made of metal material. Different from the prior art, the two ends of the font are respectively provided with internal screw holes with opposite spiral directions. The conductor of the cable is fixedly connected to a spiral tube made of metal material, and the spiral tube can be screwed into the internal screw hole.

[0006] Furthermore, it also includes a T-shaped font made of metal material, wherein the T-shaped font has a ball head seat made of metal material fixedly connected in the middle of the font, the spherical surface of the ball head seat is connected to a ball head made of metal material, and the ball head is fixedly connected to a screw rod made of metal material; the screw rod can also be screwed into the inner screw hole.

[0007] Furthermore, it also includes a locking nut, which can be threadedly connected with the screw rod or the screw tube.

[0008] Furthermore, the font is in the shape of a hexagonal column.

[0009] Furthermore, the font is cylindrical, and non-circular tool torsion surfaces are provided on the circumferential circular surfaces near the two ends.

[0010] Furthermore, the ball head seat includes an upper shell and a lower shell, the upper shell and the lower shell are connected by flanges and bolts, a cavity connected to the spherical surface of the ball head is formed between the upper shell and the lower shell, the upper shell is fixed to the middle part of the font by a vertical rod, and the lower shell has a through hole to allow the screw to pass through.

[0011] Furthermore, the conductor of the cable is fixedly connected to the inner wall of the spiral tube by soldering.

[0012] Furthermore, the inner cavity of the spiral tube is truncated cone-shaped. When the spiral tube is placed on the conductor, the inner diameter of the end close to the insulating protective layer is small, and the inner diameter of the end away from the insulating protective layer is large; a fastening nail with a small inner diameter and a large outer diameter is wedged into the end of the conductor.

[0013] Furthermore, the spiral tube is discarded, and the conductor of the cable is tinned and then tapped by a die to be screwed into the inner screw hole.

[0014] Furthermore, it also includes a heat shrink tube, which covers the font, locking nut, spiral tube and a part of the insulating protective layer of the cable.

[0015] Compared with the prior art, the beneficial technical effects of the utility model are:

[0016] 1. Versatility and multi-purpose: The connector is designed to adapt to the connection of cable heads with various cross-sections and shapes, including single-strand and multi-strand cables, and can achieve quick connection between cables of different cross-sections and different metals.

[0017] 2. Safety and stability: The interlocking structure of the internal and external threads and the locking nut ensure the firmness of the connection and enhance the conductivity, stability and mechanical strength of the cable connection.

[0018] 3. High efficiency and fast connection: The I-font and T-font designs make the connection of the cable heads simple and fast. They can also be prefabricated in batches, saving on-site construction time.

[0019] 4. Economical: The use of this new connector helps to shorten the project time, thereby reducing construction costs, and has a significant cost-effectiveness advantage.

[0020] 5. Strong applicability: Whether it is ultra-high voltage, long-distance power transmission projects, or construction in complex terrain and high-altitude dangerous areas, this connector can meet the needs.

[0021] 6. Convenience: Especially in the installation of high-voltage cables or in situations where frequent cable connection and removal are required, this connector can provide a convenient and reliable means of connection.

[0022] 7. Easy to operate: Users can tighten it by simple manual rotation or using tools, which is easy to operate.

[0023] 8. The electrical conductivity and mechanical connectivity of the cable are guaranteed: The connector ensures good electrical connection and sufficient mechanical support.

[0024] In summary, this multi-purpose cable connector provides an innovative solution that can be widely used in a variety of different types of cable connection needs, providing an economical, safe, fast, stable and reliable connection method. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the cable structure.

[0026] Figure 2 It is a structural schematic diagram of a font of the utility model.

[0027] Figure 3 It is a structural schematic diagram of a T font of the utility model.

[0028] Figure 4 It is a structural schematic diagram of the spiral tube of the utility model.

[0029] Figure 5 It is a structural schematic diagram of the fastening nail of the utility model.

[0030] Figure 6 It is a structural schematic diagram of Example 1.

[0031] Figure 7 yes Figure 6 sectional view of .

[0032] Figure 8 It is a structural schematic diagram of Example 2.

[0033] Fig. 9 It is a schematic diagram of the structure when leapfrogging wiring is performed in Example 3. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0035] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are 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 position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0036] Embodiment 1, as Figure 1 , 2 , 4, 5, 6 and 7, the straight-line cable head connector comprises a metal font 1 for connecting two sections of cable 100 in a straight line, and inner screw holes 11 with opposite spiral directions are respectively provided at both ends of the font 1, and the conductor 101 of the cable 100 is fixedly connected to a screw tube 3 made of metal material, and the screw tube 3 can be screwed into the inner screw hole 11. Metal is an excellent conductive material and can effectively transmit current, which is a key function in electrical connectors. By using metal materials, it is possible to ensure a good electrical connection between the conductor of the cable and the screw tube, thereby ensuring the integrity and performance of the circuit. Metal materials have high mechanical strength, can withstand mechanical stress during connection and disassembly, and can maintain structural stability and durability under relatively harsh environmental conditions. This is crucial to ensure the long-term reliability of the connector and reduce maintenance costs.

[0037] This embodiment is based on the internal thread matching mechanism. The key feature of a font is that an internal screw hole 21 is provided at each end of it. The spiral directions of the two internal screw holes are opposite. When the font connector 1 is rotated, the ends of the cables 100 at both ends will be screwed in synchronously and quickly. Threaded connection can achieve efficient and stable mechanical connection. The joint of the metal threaded part can provide better shear resistance and fixing effect than non-metallic materials, especially when subjected to tension and vibration. According to mechanical principles, the axial length of a general thread can meet the axial tension requirement as long as ten threads are stretched. It is useless to be longer. The first three threads of the threaded connection have borne 70% of the axial load, and more threads are of little significance to the force. In this embodiment, the font 1 is made of brass material, mainly considering that the conductive resistance of the connector is small. For rod-shaped connections for other purposes, low-cost stainless steel or alloy materials can also be selected.

[0038] In this embodiment, the font 1 is cylindrical, and non-circular tool torsion surfaces 12 are provided on the circumferential circular surfaces near the two ends. In this embodiment, there are 6 non-circular tool torsion surfaces 12. It is convenient to grasp and apply force with tools such as wrenches, so that the installer can more easily and accurately control the rotation of the font 1 during the installation process. In another preferred embodiment, the font 1 is a hexagonal column. The font 1 is changed into a hexagonal column, which is a common design widely used in bolts and screws. The hexagonal column provides six flat sides, which is convenient for applying torque with standard tools such as hexagonal wrenches or sockets. This shape also increases the contact surface when using the tool, making the rotation more stable and efficient.

[0039] In this embodiment, the inner cavity of the spiral tube 3 is truncated cone-shaped. When the spiral tube 3 is placed on the conductor 101, the inner diameter of the end close to the insulating protective layer 102 is small, and the inner diameter of the end away from the insulating protective layer 102 is large; a fastening nail 5 with a small inner diameter and a large outer diameter is wedged from the end of the conductor 101. 102, while the inner diameter of the other end is large. This design can form a good wedging effect when the conductor 101 is inserted. The fastening nail 5 has two ends with different diameters, which are used to wedge from the end of the conductor 101 to form a stable mechanical connection between the conductor 101 and the spiral tube 3. In another preferred embodiment, the conductor 101 of the cable 100 is fixed together with the inner wall of the spiral tube 3 by soldering. Solder can provide very reliable electrical contact and mechanical fixation. The welding method ensures that the connection between the conductor 101 and the spiral tube 3 is both stable and has good conductivity, which is suitable for occasions where long-term stable connection is required.

[0040] In this embodiment, a locking nut 4 is also included, and the locking nut 4 can be screwed with the screw rod 21 or the screw tube 3. By rotating the locking nut until it is close to the end surface of the screw tube 3 or the screw rod 21, a strong locking effect can be achieved. This design not only ensures the stability of the mechanical connection and ensures that the connection will not loosen due to vibration or long-term use. It also provides additional protection for the cable connection and reduces the loss and failure rate of the connection part.

[0041] In another preferred embodiment, the font 1, the locking nut 4, the screw tube 3 and part of the insulating protective layer 102 of the cable 100 are covered with a heat shrink tube for rain and leakage protection. The heat shrink tube can be pre-covered on the finished connector part, and the heat shrink tube tightly hugs the connector after heating, which not only reduces oxidation and rusting but also plays a certain insulation role.

[0042] Embodiment 2, as Figure 1-8 The T-shaped cable connector shown in the figure includes a T-shaped body 2 made of metal for orthogonally connecting three sections of cables 100. The crossbar of the T-shaped body 2 is similar to the one-shaped body 1 described in Example 1, but the difference is that a ball head seat 23 made of metal is fixed in the middle thereof, the ball head seat 23 is spherically connected to a ball head 24 made of metal, and the ball head 24 is fixed to a screw rod 21 made of metal; the screw rod 21 is screwed into one of the inner screw holes 11 of another one-shaped body 1, and the other inner screw hole 11 of the one-shaped body 1 is connected to a section of cable 100 as in Example 1. The other two sections of cable 100 are connected to the two ends of the crossbar of the T-shaped body 2 as in Example 1. The ball head seat includes an upper shell and a lower shell, the upper shell and the lower shell are connected by flanges and bolts, a cavity connected to the spherical surface of the ball head is formed between the upper shell and the lower shell, the upper shell is fixed to the middle part of the one-shaped body through a vertical rod, and the lower shell is provided with a through hole to allow the screw rod to pass through.

[0043] This embodiment can not only provide good electrical connection and mechanical strength, but also the T-shaped structure is suitable for the connection of three-way cables, that is, to achieve one-in and two-out or one-out and two-in cable branches, expanding the possibility and flexibility of cable wiring. At the same time, the spherical connection between the ball head 24 and the ball head seat 23 allows the ball head to rotate freely within a certain range, which increases the flexibility of the connection, so that the cable connection can be adjusted within a certain angle to adapt to different installation environments and requirements, and improve the installation adaptability.

[0044] Embodiment 3, as Figure 1-9 A cable head connector for passing a cross arm is shown, comprising two T-shaped shapes 2 and two I-shaped shapes 1, the inner ends of the two T-shaped shapes 2 are respectively fixed to the cross arm 200 of the power facility through stud bolts 400, the outer ends of the two T-shaped shapes 2 are respectively connected to the cable 100, the upper ends of the two I-shaped shapes 1 are respectively connected to the screw rods 21, and the lower ends of the two I-shaped shapes 1 are respectively connected to the two ends of the cable 100 bent into a U shape.

[0045] This embodiment can achieve leapfrogging wiring through the combined use of a font 1 and a T font 2, so that the cable can effectively cross the crossarm or other obstacles, which helps to achieve structured and safe cable wiring.

[0046] Embodiment 4 is the same as Embodiment 1, 2 or 3 in other aspects, except that the screw tube 3 is abandoned, and the conductor 101 of the cable 100 is tinned and then tapped by a die to be screwed into the inner screw hole 11. That is, the connection between the conductor and the inner screw hole is achieved by tinning and tapping by a die, instead of using the screw tube 3. This change may be to improve the reliability of the connection and simplify the assembly process.

[0047] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-purpose cable connector, comprising a font (1) made of metal, characterized in that: Internal screw holes (11) with opposite spiral directions are respectively formed at two ends of the font (1); a conductor (101) of the cable (100) is fixedly connected to a screw tube (3) made of a metal material; and the screw tube (3) can be screwed into the internal screw hole (11).

2. A multi-purpose cable connector according to claim 1, characterized in that: It also includes a T-shaped font (2) made of metal material, wherein the T-shaped font (2) is fixedly connected to a ball head seat (23) made of metal material in the middle of the font (1), the ball head seat (23) is spherically connected to a ball head (24) made of metal material, and the ball head (24) is fixedly connected to a screw rod (21) made of metal material; the screw rod (21) can also be screwed into the inner screw hole (11).

3. A multi-purpose cable connector according to claim 2, characterized in that: It also includes a locking nut (4), which can be threadedly connected to the screw rod (21) or the screw tube (3).

4. A multi-purpose cable connector according to claim 1 or 2, characterized in that: The font (1) is in the shape of a hexagonal column.

5. A multi-purpose cable connector according to claim 1 or 2, characterized in that: The font (1) is cylindrical, and a non-circular tool twisting surface (12) is provided on the circumferential circular surface near the two ends.

6. A multi-purpose cable connector according to claim 2, characterized in that: The ball head seat (23) comprises an upper shell (231) and a lower shell (232), the upper shell (231) and the lower shell (232) being connected via a flange and bolts, a cavity connected to the spherical surface of the ball head (24) is formed between the upper shell (231) and the lower shell (232), the upper shell (231) is fixedly connected to the middle part of the font (1) via a vertical rod (22), and a through hole is provided in the lower shell (232) to allow the screw rod (21) to pass through.

7. A multi-purpose cable connector according to claim 1, characterized in that: The conductor (101) of the cable (100) and the inner wall of the spiral tube (3) are fixedly connected together by soldering.

8. The multi-purpose cable connector according to claim 1, characterized in that: The inner cavity of the spiral tube (3) is in the shape of a truncated cone. When the spiral tube (3) is placed on the conductor (101), the inner diameter of the end close to the insulating protective layer (102) is small, while the inner diameter of the end away from the insulating protective layer (102) is large. A fastening nail (5) with a small inner diameter and a large outer diameter is wedged into the end of the conductor (101).

9. The multi-purpose cable connector according to claim 1, characterized in that: The spiral tube (3) is discarded, and the conductor (101) of the cable (100) is tinned and then tapped by a die to be screwed into the inner screw hole (11).

10. A multi-purpose cable connector according to claim 1 or 2, characterized in that: It also includes a heat shrink tube, which covers the font (1), the locking nut (4), the spiral tube (3) and a portion of the insulating protective layer (102) of the cable (100).

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