Welding-free communication coaxial cable joint

Abstract

The utility model provides a welding-free communication coaxial cable joint which comprises a connector lug, the inner end of the connector lug is provided with a wiring terminal, the outer end of the connector lug is provided with a jack, a connecting core is arranged in the connector lug, the inner end of the connecting core is connected with the wiring terminal, and the outer end of the connecting core extends into the jack. One end, far away from the connecting core, of the wiring terminal is provided with a cable jack, a locking screw hole and a screw, the end, far away from the connecting core, of the wiring terminal is connected with a shielding pressing pipe through a conical sleeve, one end of the connector lug is provided with a shell, and the other end of the connector lug is movably sleeved with a sheath. The coaxial cable with the stripped central conductor is inserted through one end of the shielding pressure tube, the central conductor is inserted into the cable jack on the wiring terminal and is locked and fixed by the locking screw, so that the rapid connection between the coaxial cable and the connector lug is realized, and the problems of difficulty in operation, low efficiency, sealing-off and poor contact caused by adopting a welding mode in the prior art are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a cable joint, especially a welding-free communication coaxial cable joint, and belongs to the technical field of electronic communication. BACKGROUND

[0002] Coaxial cables are often used in communication to transmit 2Mbit / s level services, such cables are also called 2M cables, and are widely used in various power grid operation environments such as interconnection of transmission equipment and routers, interconnection of transmission equipment and relay protection interface devices. When interconnecting devices with communication needs, the interconnection is completed through a coaxial cable joint, and the core of the interconnection is to spot weld or crimp an L9 or BCN coaxial cable joint (also called a 2M joint) to form a coaxial cable terminal, and then interconnect the required communication devices and cables through the terminal to form a path and realize information interconnection.

[0003] At present, the following problems exist in the use of L9 or BNC coaxial cable joints to make 2M terminals:

[0004] 1. The 2M terminal needs to use an electric soldering iron to weld the core wire of the coaxial cable signal transmission on the terminal post of the center pin of the joint, and the copper wire of the shielding layer wrapped outside the coaxial cable is fixed on the joint shell using a crimping plier. When welding the core wire, the welding surface is small, and the insulation layer of the cable core wire and the shielding wire is easily melted and shrunk by heat, so there are high requirements for the welding operation precision and welding time of the operator, the operation is difficult, and defects such as virtual welding, disconnection, and short circuit of the welding may occur, which may cause problems such as service interruption or error code. In some cases of virtual welding, the mechanical strength may decrease after a period of normal operation, resulting in poor contact and causing the service to be interrupted, which often takes a long time to troubleshoot and often causes long-term damage to the service.

[0005] 2. Welding of the coaxial cable joint needs two people to operate, one person uses a clamping tool to fix the cable joint at a suitable position, and the other person uses an electric soldering iron to weld. The welding quality is affected by both people, and it is inefficient for two people to make a joint. In the engineering stage, a set of 64 2M output lines of the convergence layer transmission equipment need to be made, which is a big challenge to the welding quality and physical fitness of the operators. In the later stage of production, the welding quality may become unstable due to the long-time repeated work of the operators and the long-time heating of the welding tool, resulting in welding defects and rework, and reducing the operation efficiency.

[0006] 3. The current 2M joint can only be welded once, and if a welding defect occurs, it can only be discarded, causing waste. Therefore, it is necessary to improve the existing technology. SUMMARY

[0007] In order to solve the problems of difficult operation, easy to weld, poor contact at the welding position, high requirement for welding operation and the like of the existing coaxial cable end welding, the utility model provides a welding-free communication coaxial cable joint.

[0008] The utility model discloses a welding-free communication coaxial cable joint, including the binding post, the binding post inside end is equipped with the binding post terminal, the outside is equipped with the jack, the binding post is equipped with the connecting core, the connecting core inside end is connected with the binding post terminal, and the outside extends to the jack, and the one end of binding post terminal and away from the connecting core is equipped with the cable jack and locking screw hole and screw, and the one end of binding post terminal and away from the connecting core is connected with the shielding pressure pipe through the conical cover, and the one end of binding post is equipped with the shell, and the other end is equipped with the sheath, so as to be inserted through the sheath and the shielding pressure pipe in it to the coaxial cable that exposes the center conductor by stripping the outer layer, until the center conductor is inserted into the cable jack of binding post 7, and is locked and fixed through the screw in locking screw hole, realizes the quick connection of coaxial cable and the one end of binding post, solves the problems of difficult operation, low efficiency, welding, poor contact brought by the welding mode of the previous.

[0009] The connecting core is axially arranged in the binding post, the inner end of the connecting core is fixedly connected with the binding post terminal, and the outer end is arranged in the jack of the connecting head, so that after the jack of the binding post is inserted with the binding female head, the connecting core and the binding post terminal are used to quickly connect the other end of the binding post with the binding female head, and finally the utility model is used to quickly connect the coaxial cable with the binding female head.

[0010] The binding post terminal is a cylinder, the cable jack is arranged at the axis of the binding post terminal, the inner end of the cable jack is fixedly connected with the inner end of the binding post, the outer end of the cable jack is open, and the locking screw hole and the screw are arranged on the corresponding side walls of the binding post terminal, so that after the center conductor of the coaxial cable is inserted, the center conductor enters the cable jack of the binding post terminal through the opening, and then the screw in the locking screw hole is locked and fixed, so that the coaxial cable is prevented from being separated from the binding post.

[0011] The binding post terminal and the connecting core are conductors, so that the electric signal can be transmitted between the coaxial cable and the connecting core through the connecting terminal, and the electric signal is ensured to be smooth.

[0012] The shielding pressure pipe is provided as a cylindrical sleeve with a diameter smaller than that of the coaxial cable, an axial through slot is formed in the side wall of the cylindrical sleeve, the outer end of the shielding pressure pipe is provided as an open end, the inner end is connected to the outer end of a conical sleeve with gradually decreasing diameter and is not connected to the conical sleeve, the inner end of the conical sleeve is sleeved on the terminal, after the coaxial cable is inserted into the shielding pressure pipe, the surface shielding layer of the coaxial cable is folded back under the blocking of the outer end of the conical sleeve, the central conductor is exposed and inserted into the cable insertion hole of the terminal, the coaxial cable is fixed, and good insulation is achieved, the shielding pressure pipe can be expanded through the axial through slot, and the shielding pressure pipe is matched with the coaxial cable.

[0013] The sheath is provided as a cylindrical sleeve with open ends at the front end and the rear end, the cylindrical sleeve is sleeved with the coaxial cable through the open end at the front end, the inner side of the open end at the rear end is provided with an internal thread, the internal thread is screwed with an external thread arranged on the terminal, and the sheath is provided as an insulating sheath, so that the terminal and the central conductor are protected through the sheath.

[0014] The utility model has the following advantages and effects:

[0015] 1. The reliability of the coaxial cable end-to-wire connection is improved, the high welding skill requirement of the operation personnel is reduced, the connection quality is improved, and the reliable operation of the power grid business is ensured.

[0016] 2. The head-to-wire connection mode is changed from welding to crimping, the operation complexity is greatly reduced, the end forming time of a single head is shortened, the end forming work can be completed by one person, and the operation efficiency is greatly improved.

[0017] 3. The welding-free coaxial cable connector is developed to realize the reusability of the connector, and the waste caused by the welding defects which are difficult to correct is avoided. DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, other drawings can be obtained by the ordinary skilled in the art without creative labor.

[0019] Figure 1 It is a front view of the utility model;

[0020] Figure 2 It is a rear view of the utility model;

[0021] Figure 3 It is an internal structure diagram of the utility model;

[0022] Figure 4 It is a sectional view of the utility model;

[0023] Figure 5 The use state diagram of the utility model.

[0024] In the figure, 1, terminal, 2, sheath, 3, coaxial cable, 4, center conductor, 5, connecting core, 6, jack, 7, terminal, 8, locking screw, 9, axial slot, 10, shielding pressure pipe, 11, conical sleeve, 12, shielding layer, 13, cable jack, 14, connecting female head. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model. EMBODIMENT

[0026] The welding-free communication coaxial cable joint provided by the utility model, including terminal 1, the inner end of terminal 1 is equipped with terminal 7, and the outer end is equipped with jack 6, terminal 1 is equipped with connecting core 5 in it, the inner end of connecting core 5 is connected with terminal 7, and the outer end extends into jack 6, one end of terminal 7 away from connecting core 5 is equipped with cable jack 13, locking screw hole and screw 8, and one end of terminal 7 away from connecting core 5 is connected with shielding pressure pipe 10 through conical sleeve 11, one end of terminal 1 is equipped with shell 15, and the other end is movably equipped with sheath 2, so as to insert coaxial cable 3 with outer layer stripped and center conductor 4 exposed into sheath 2 and shielding pressure pipe 10 in it, until the center conductor 4 is inserted into cable jack 13 of terminal 7, and is locked and fixed through screw 8 in locking screw hole, realizing the rapid connection of coaxial cable 3 and one end of terminal 1, solving the problems of operation difficulty, low efficiency, disconnection and poor contact caused by the welding mode in the past;

[0027] Connecting core 5 is axially arranged in terminal 1, the inner end of connecting core 5 is fixedly connected with terminal 7, and the outer end is arranged in jack 6 of terminal 1, so as to realize the rapid connection of the other end of terminal 1 and connecting female head 14 through connecting core 5 and terminal 7 after the plug-in connection of jack 6 of terminal 1 and connecting female head 14, finally realizing the rapid connection of coaxial cable 3 and connecting female head 14 through the utility model;

[0028] The terminal 7 is a cylinder, the cable insertion hole 13 is arranged at the center of the terminal 7, the inner end of the cable insertion hole 13 is fixedly connected with the inner end of the terminal 1, the outer end of the cable insertion hole 13 is open, the locking screw holes and the screws 8 are two and symmetrically arranged on the corresponding side walls of the terminal 7, so that after the center conductor 4 of the coaxial cable 3 is inserted, the coaxial cable 3 enters the cable insertion hole 13 of the terminal 7 through the opening, and then is locked and fixed by the screws 8 in the locking screw holes, thereby preventing the coaxial cable 3 from being separated from the terminal 1;

[0029] The terminal 7 and the connecting core 5 are conductors, so that the electric signal can be transmitted between the coaxial cable 3 and the connecting core 5 through the terminal 7, and the electric signal is ensured to be smooth;

[0030] The shielding pressure pipe 10 is a cylindrical sleeve with a diameter smaller than that of the coaxial cable 3, the side wall of the cylindrical sleeve is provided with an axial through slot 9, the outer end of the shielding pressure pipe 10 is open, the inner end is connected with the outer end of the conical sleeve 11 with gradually decreasing diameter and is not connected, the inner end of the conical sleeve 11 is sleeved on the terminal 7, so that after the coaxial cable 3 is inserted into the shielding pressure pipe 10, the surface shielding layer 12 of the coaxial cable 3 is folded back under the blocking action of the outer end of the conical sleeve 11, the center conductor 4 is exposed and inserted into the cable insertion hole 13 of the terminal 7, the coaxial cable 3 is fixed, and good insulation is achieved, the shielding pressure pipe 10 can be expanded through the axial through slot 9, so that the shielding pressure pipe 10 is matched with the coaxial cable 3;

[0031] The sheath 2 is a cylindrical sleeve with open front and rear ends, the cylindrical sleeve is sleeved with the coaxial cable 3 through the open front end, the inner side of the open rear end is provided with an internal thread, the internal thread is screwed with an external thread arranged on the terminal 1, the sheath 2 is an insulating sheath, so as to protect the terminal and the center conductor through the sheath 2.

[0032] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0033] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A solderless communication coaxial cable joint, characterized by The connector includes a connector head, an inner end of the connector head is provided with a connector terminal, an outer end of the connector head is provided with a jack, and a connecting core is arranged in the connector head, an inner end of the connecting core is connected with the connector terminal, and an outer end of the connecting core extends into the jack, one end of the connector terminal away from the connecting core is provided with a cable jack, a locking screw hole and a screw, and a shielding pressure pipe is connected to the end of the connector terminal away from the connecting core through a conical sleeve, one end of the connector head is provided with a shell, and the other end is movably sleeved with a sheath.

2. The weldless communication coaxial cable junction of claim 1, wherein The connecting core is arranged in the connector head in an axial direction, an inner end of the connecting core is fixedly connected with the connector terminal, and an outer end of the connecting core is arranged in the jack of the connector head.

3. The weldless communications coaxial cable junction of claim 1, wherein The connector terminal is in the shape of a cylinder, the cable jack is arranged at the center of the connector terminal, an inner end of the cable jack is fixedly connected with the inner end of the connector head, an outer end of the cable jack is open, and the locking screw hole and the screw are arranged on the side walls of the connector terminal in a symmetrical manner.

4. The weldless communications coaxial cable junction of claim 1, wherein The connector terminal and the connecting core are conductors.

5. The weldless communications coaxial cable junction of claim 1, wherein The shielding pressure pipe is in the shape of a cylindrical sleeve with a diameter smaller than that of the coaxial cable, an axial through groove is arranged on the side wall of the cylindrical sleeve, an outer end of the shielding pressure pipe is open, an inner end of the shielding pressure pipe is connected with an outer end of the conical sleeve with a gradually decreasing diameter, and the inner end of the conical sleeve is sleeved on the connector terminal.

6. The weldless communications coaxial cable junction of claim 1, wherein The sheath is in the shape of a cylindrical sleeve with open front and rear ends, the cylindrical sleeve is sleeved with the coaxial cable through the open front end, an inner side of the open rear end is provided with an internal thread, the internal thread is screwed with an external thread arranged on the connector head, and the sheath is an insulating sheath.

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