Waterproof cable welding head assembly

Abstract

The utility model discloses a waterproof cable welding head assembly, and relates to the technical field of cable welding heads, the waterproof cable welding head assembly comprises a first connector and a second connector, the second connector is provided with a protruding first conical block, the side surface of the first connector is provided with a first conical groove, and the second connector is provided with a second conical block. The first connector and the first conical block are connected with a locking assembly, the locking assembly comprises a first positioning disc, a screw rod, a second positioning disc and a second hexagonal nut, the first positioning disc is fixedly connected with the first connector, the second positioning disc is fixedly connected with the second connector, and the second hexagonal nut is fixedly connected with the screw rod. The screw penetrates through the first positioning disc and the second positioning disc and then is in threaded connection with the second hexagon nut, the locking assembly is selected to connect and lock the two positioning discs, axial connection of the two cables is enhanced, it is ensured that the situation that the welding position of the two cables is broken due to axial pulling force is avoided, and the service life of the cables is prolonged. And the cable joint is located in the channel of the first connector and the second connector, so that the radial run-out of the joint of the two cables can be limited.

Description

Technical Field

[0001] The utility model relates to the technical field of cable fusion joints, in particular to a waterproof cable fusion joint assembly. Background Art

[0002] To connect two cables, both ends of the connection need to be pre-processed, that is, the outer skin of the coaxial cable is cut to expose the wrapped shielding layer, and then part of the shielding layer is cut and removed, and then part of the insulator is cut to expose the core. After the pre-treatment is completed, the connection and welding of the two cables are started. The mold is clamped and fixed at the connection of the two cables, and then the mold is filled with conductive metal and burned to melt the conductive metal. Then it is left to cool, cut and polished. Subsequently, cold shrink tubing and tin foil need to be added for auxiliary heating. After heating, the excess part needs to be cut, and finally the inner semiconductor layer is restored by wrapping, and the insulating tape is wrapped around the package to form an insulating layer.

[0003] In the above process, the two cables are not sufficiently resistant to the axial force. During actual construction, when the cables are pulled, the connection between the two cables lacks a connection structure to cope with the axial tension, and the connection is broken. In addition, affected by the external environment, the insulation layer is easy to fall off in a humid environment, resulting in the failure of protection and affecting the sealing, which can easily lead to water leakage and affect the normal use of the cable. Utility Model Content

[0004] Based on this, it is necessary to provide a waterproof cable fusion joint assembly to address the problem of breakage at the connection caused by axial pulling of the two cables, which can improve the stability of the overall connection by corresponding axial pulling of the two cables.

[0005] A waterproof cable fusion joint assembly comprises a first connector and a second connector, the second connector having a protruding first conical block along the central axis direction thereof, a first conical groove cooperating with the first conical block is provided on the side of the first connector, a locking assembly is provided between the first connector and the first conical block, the locking assembly is used for the first conical block to abut seamlessly against the first conical groove;

[0006] The locking assembly includes a first positioning plate, a screw, a second positioning plate and a second hexagonal nut. The first positioning plate is fixedly connected to the first connecting head, the second positioning plate is fixedly connected to the second connecting head, and the screw passes through the first positioning plate and the second positioning plate and is threadedly connected to the second hexagonal nut.

[0007] As a preferred solution, annular grooves are provided on the inner walls of the first conical block and the first conical groove, and first annular sealing members are installed in the two annular grooves.

[0008] As a preferred solution, a first ferrule is threadedly connected in a channel on the side of the first connector, and a first strip-shaped groove is symmetrically distributed on the side of the first ferrule.

[0009] As a preferred solution, a first hexagonal nut is sleeved on the surface of the first ferrule, and the first hexagonal nut is threadedly connected to the first ferrule.

[0010] As a preferred solution, a second ferrule is threadedly connected in a channel on the side of the second connector, and a second strip-shaped groove is symmetrically distributed on the side of the second ferrule.

[0011] As a preferred solution, a third hexagonal nut is sleeved on the surface of the second ferrule, and the third hexagonal nut is threadedly connected to the second ferrule.

[0012] As a preferred solution, a first accommodating groove is formed on the inner side surface of the first ferrule, and a second annular sealing member is installed in the first accommodating groove.

[0013] The utility model is beneficial in that:

[0014] The two positioning plates are connected and locked by a locking assembly, thereby strengthening the axial connection of the two cables and ensuring that the fusion joint between the two cables will not break due to axial pulling. In addition, the two cable connections are located in the channels of the first connector and the second connector, which plays a certain protective role and can prevent the two cable connections from falling off due to radial runout. In addition, the cables are seamlessly abutted against the inner wall of the channel. In addition, the first conical groove and the first conical block cooperate to ensure that the central axes of the two connectors are in line, and the two internal channels are aligned after being in line, further avoiding misaligned installation of the two channels. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure;

[0016] Figure 2 It is a schematic diagram of the overall internal structure;

[0017] Figure 3 for Figure 2 The enlarged schematic diagram at A in the middle;

[0018] Icons: 1. First ferrule; 101. First receiving groove; 2. First hexagonal nut; 3. First connecting head; 31. First conical groove; 4. Second connecting head; 5. Locking assembly; 51. First positioning disk; 52. Screw; 53. Second positioning disk; 54. Second hexagonal nut; 6. Second ferrule; 7. Third hexagonal nut; 8. First annular seal; 9. Second annular seal. DETAILED DESCRIPTION

[0019] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0020] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0022] like Figure 1-3 As shown,

[0023] As an optional embodiment,

[0024] A waterproof cable fusion joint assembly comprises a first connector 3 and a second connector 4, wherein the second connector 4 has a protruding first conical block along the central axis direction thereof, a first conical groove 31 cooperating with the first conical block is provided on the side of the first connector 3, a locking assembly 5 is provided between the first connector 3 and the first conical block, and the locking assembly 5 is used for the first conical block to seamlessly abut against the first conical groove 31;

[0025] The locking assembly 5 includes a first positioning plate 51, a screw rod 52, a second positioning plate 53 and a second hexagonal nut 54. The first positioning plate 51 is fixedly connected to the first connecting head 3, the second positioning plate 53 is fixedly connected to the second connecting head 4, and the screw rod 52 passes through the first positioning plate 51 and the second positioning plate 53 and is threadedly connected to the second hexagonal nut 54.

[0026] Specifically, in this embodiment, the first connector 3 is connected to one end of the cable, and the second connector 4 is connected to another cable. A positioning disk is installed at each of the two cable joints, namely the first positioning disk 51 and the second positioning disk 53. After the two cables are fused, the two positioning disks are connected and locked by the locking assembly 5, thereby strengthening the axial connection of the two cables to ensure that the two will not break at the fusion joint due to pulling. In addition, the connection between the two cables is located in the channel of the first connector 3 and the second connector 4, which plays a certain protective role and can prevent the radial runout of the connection between the two cables and fall off. In addition, the cable is seamless. Abutting against the inner wall of the channel, in addition, the cooperation of the first conical groove 31 and the first conical block can ensure that the central axes of the two connectors are in line, and the two internal channels are aligned after being in line, so as to further avoid the misaligned installation of the two channels; in addition, a plurality of through holes for the screw 52 to pass through are opened on the first positioning plate 51 along its circumference, and a through hole for the screw 52 to pass through is also opened at the corresponding position of the second positioning plate 53. During subsequent positioning, the screw 52 is passed through the through holes of the first positioning plate 51 and the second positioning plate 53, and then threadedly cooperated with the second hexagonal nut 54 to complete the tightening, thereby completing the connection between the first connector 3 and the second connector 4.

[0027] Furthermore, annular grooves are provided on the inner walls of the first conical block and the first conical groove 31, and first annular seals 8 are installed in the two annular grooves. The first annular seal 8 is installed in the annular grooves, and the gap at the connection between the first connector 3 and the second connector 4 is subsequently reduced by the locking assembly 5. Then, one side of the first annular seal 8 abuts against the surface of the second connector 4, and the other side of the first annular seal 8 abuts against the groove wall in the first conical groove 31 of the first connector 3.

[0028] In order to better connect the cable of the first connector 3, a first ferrule 1 is threadedly connected in the channel on the side of the first connector 3, and a symmetrically distributed first strip groove is opened on the side of the first ferrule 1. After one end of the cable passes through the first ferrule 1, a clamp can be selected to press the first ferrule 1 against the surface of the cable, and the opened first strip groove can provide a certain adjustment space for the first ferrule 1 to facilitate better contact between the first ferrule 1 and the cable, and the first ferrule 1 is installed in the channel of the first connector 3 in a threaded connection manner to realize the detachable ferrule. In addition, a first hexagonal nut 2 is sleeved on the surface of the first ferrule 1, and the first hexagonal nut 2 is threadedly connected to the first ferrule 1. Subsequently, the first hexagonal nut 2 abuts against the side of the first connector 3, which can further prevent the first ferrule 1 from rotating itself.

[0029] The design of connecting the second connector 4 with another cable is as follows:

[0030] A second ferrule 6 is threadedly connected in the channel on the side of the second connector 4, and a second strip groove is symmetrically distributed on the side of the second ferrule 6. A third hexagonal nut 7 is sleeved on the surface of the second ferrule 6, and the third hexagonal nut 7 is threadedly connected to the second ferrule 6. As a preferred solution, a first accommodating groove is provided on the inner side surface of the first ferrule 1, and a second annular seal 9 is installed in the first accommodating groove.

[0031] Specifically, the second ferrule 6 is installed in the channel of the second connector 4 in a threaded connection manner. The second ferrule 6 can be quickly disassembled and assembled with the second connector 4 to achieve replacement. The symmetrical second strip groove on the second ferrule 6 can provide space for movement. The end of the second ferrule 6 is subsequently pressed against the surface of the cable body through a clamp. In addition, the third hexagonal nut 7 on the second ferrule 6 is threadedly connected. Subsequently, the third hexagonal nut 7 moves on the second ferrule 6 and abuts against the side of the second connector 4 to limit the rotation of the second ferrule 6 itself. The second annular seal 9 located in the first accommodating groove can form an end face seal between the second ferrule 6 and the second connector 4.

[0032] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A waterproof cable fusion joint assembly, characterized in that: The invention comprises a first connector (3) and a second connector (4), wherein the second connector (4) has a protruding first conical block along the central axis direction thereof, and the side surface of the first connector (3) is provided with a first conical groove (31) matched with the first conical block, and a locking assembly (5) is arranged between the first connector (3) and the first conical block, and the locking assembly (5) is used for the first conical block to seamlessly abut against the first conical groove (31); The locking assembly (5) comprises a first positioning plate (51), a screw rod (52), a second positioning plate (53) and a second hexagonal nut (54); the first positioning plate (51) is fixedly connected to the first connecting head (3); the second positioning plate (53) is fixedly connected to the second connecting head (4); and the screw rod (52) passes through the first positioning plate (51) and the second positioning plate (53) and is threadedly connected to the second hexagonal nut (54).

2. A waterproof cable fusion joint assembly according to claim 1, characterized in that: An annular groove is provided on the inner wall of the first conical block and the first conical groove (31), and first annular sealing members (8) are installed in the two annular grooves.

3. A waterproof cable fusion joint assembly according to claim 1, characterized in that: A first ferrule (1) is threadedly connected in a channel on the side of the first connector (3), and a first strip-shaped groove is symmetrically distributed on the side of the first ferrule (1).

4. A waterproof cable fusion joint assembly according to claim 3, characterized in that: A first hexagonal nut (2) is sleeved on the surface of the first ferrule (1), and the first hexagonal nut (2) is threadedly connected to the first ferrule (1).

5. A waterproof cable fusion joint assembly according to claim 1, characterized in that: A second ferrule (6) is threadedly connected in a channel on the side of the second connector (4), and a second strip-shaped groove is symmetrically distributed on the side of the second ferrule (6).

6. A waterproof cable fusion joint assembly according to claim 5, characterized in that: A third hexagonal nut (7) is sleeved on the surface of the second ferrule (6), and the third hexagonal nut (7) is threadedly connected to the second ferrule (6).

7. A waterproof cable fusion joint assembly according to claim 4, characterized in that: A first accommodating groove is provided on the inner side surface of the first ferrule (1), and a second annular sealing member (9) is installed in the first accommodating groove.

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