Protective device and waterproof and humidity-proof processing mechanism used for cable ground exposing position

[0047] Example 1:

[0048] A protective device for the bare ground of a cable, including a protective shell. The protective shell includes a paired outer end protective shell 4 and a paired middle protective shell 5. Line cavity, the middle protective shell 5 is set at one end of the outer protective shell 4 and is movably connected to it. The outer protective shell 4 is set on the cable sheath at the outer end of the bare cable ground when in use. Cover the bare ground of the cable. Wherein, there may be one outer protective shell 4 of the outer aligning type, the middle protective shell is arranged at one end thereof, or two, and the middle protective shell is arranged between the outer protective shells. The outer end protective shell 4 includes two or more outer end sub-shells, a pair of adjacent two outer end sub-shells are hinged on the sides, and the corresponding pairs form two outer end sub-shells of a circular cavity. The sides are movably connected by a buckle/butting buckle/sleeve 6, wherein the sides of the two outer ends of the composite circular cavity can also be movably connected by the buckle/butting buckle, and then connected to the outer shell The ferrule 6 can lock the outer shell separately. The middle protective shell 5 includes two or more middle sub-shells. Either end of each middle sub-shell is hinged to the outer protective shell 4, and the other end is a movable end. The movable ends of two or more middle sub-shells pass The locking device is locked, and the butting connection forms a cable passing cavity. Because most of the cables that need to be grounded are infinitely extending, the outer protective shell must be two or more split shells movably connected, the outermost structure is preferably connected by two split shells, the structure is simple and easy The advantage of processing and hinge connection is that it is convenient to open and close. Sealing strips 7 are arranged between two adjacent middle sub-shells and between them and the outer protective shell. The sealing strips 7 are arranged in the grooves corresponding to the middle sub-shells to prevent moisture or rain from entering. The protective shell can seal the bare part of the cable. The locking device includes two locking shells 8 with screw holes 11, and one end of the two locking shells is hinged to two opposite sides of a middle sub-shell, and the other end of the two locking shells is On the free ends, they are fastened and connected to the rest of the middle sub-shells with screws 9. A clasp 10 can be provided on the movable end of the middle split shell to facilitate opening the middle shell.

[0049] A water-proof and moisture-proof treatment mechanism for the bare ground of a cable. The mechanism includes a roll of separate metal foil 1. The metal foil 1 is wrapped around the bare wire part of the cable that needs to be grounded during use, and the metal foil 1 The wrapping range extends to the cable sheath 2 outside of the bare wire. A protective shell is provided on the periphery of the wrapped metal foil 1. The protective shell includes a paired outer end protective shell 4 and a paired middle protective shell 5. A cable passing cavity with open ends and closed sides is formed. The middle protective shell 5 is arranged at one end of the outer protective shell 4 and is movably connected to it. The outer protective shell 4 is wrapped around the cable at the outer end of the bare cable ground when in use. On the wire sheath, the middle protective shell 5 is wrapped around the bare ground of the cable when in use. Among them, the metal foil 1 is aluminum foil, copper foil, silver foil, gold foil, metal conductive composite material foil, or a combination of foils. Because the above-mentioned metal foils all have the characteristics of high conductivity, high moisture resistance, soft texture, and good plasticity, Therefore, it can not only achieve the functions of waterproof and moisture-proof when processing the cable, but also ensure the power transmission capacity of the connection. When the cable is repaired, the grounding clamp can be directly clamped on the metal foil wrapped around the bare wire, which is easy to operate . An adhesive tape 3 is wound on the outer surface of the wrapped metal foil 1, and the adhesive tape is preferably an elastic tape with adhesive material on one or both sides. When the elastic tape is wound on the metal foil at least once, it not only has the function of protecting the metal foil, but also can be further waterproof and moisture-proof. The part where the tape 3 is wound is on the metal foil 1 at the junction of the grounding part and the cable sheath 2. At the same time, the grounding part and the metal foil wrapped on the cable sheath 2 are covered, or the part where the tape 3 is wound is metal foil 1 The junction between the end and the cable sheath 2, and at the same time cover the end of the metal foil 1 and the cable sheath 2, to protect the metal foil, preferably the place where the tape 3 is wound is the metal foil at the junction of the grounding part and the cable sheath 2 1. At the same time, cover the grounding part with the metal foil wrapped on the cable sheath 2. Because the metal foil wrapped at the junction has a gradient and is easy to be damaged, the junction is the best place to wrap the tape to protect it Metal foil wrapped at the junction of bare wire and cable sheath. The outer protective shell 4 can be arranged on the outer end of the metal foil 3 or the cable outside, the outer protective shell 4 can also be arranged on the tape 3 or the cable at the outer end, and the middle protective shell 5 is arranged on two Between the outer protective shells 4, and the two ends are respectively movably connected with the outer protective shell, the protective shell plays a role of protecting the metal foil. Preferably, the outer protective shell 4 is arranged on the tape. At this time, the protective shell has the best waterproof effect. The outer end protective shell 4 includes two or more outer end sub-shells, a pair of adjacent two outer end sub-shells are hinged on the sides, and the corresponding pair is formed into certain two outer end sub-shells of the circular cavity. The side of the shell is movably connected by a buckle/butting buckle/sleeve 6, or the sides of the other two outer ends of the composite circular cavity are first movably connected by a buckle/butting buckle, and then set outside Fasten the card sleeve 6. The middle protective shell 5 includes two or more middle sub-shells. Either end of the middle sub-shell is hinged to the outer protective shell 4 respectively. The advantage of the hinge is that it is convenient to open and close. The other end is a movable end, two or more The middle sub-shells are movably connected by locking devices. A sealing strip 7 is provided between two adjacent middle sub-shells and between it and the outer protective shell, and the outer diameter of the wound elastic tape is consistent with the inner diameter of the outer protective shell 4, which can realize the protective shell and The sealing of the bare part of the cable has the best waterproof and moisture-proof effect. The locking device includes two locking shells 8 with screw holes 11, and one end of the two locking shells is hinged to two opposite sides of a middle sub-shell, and the other end of the two locking shells is On the free ends, they are fastened and connected to the rest of the middle sub-shells with screws 9. A clasp 10 is provided on the movable end of the middle sub-shell to facilitate opening the middle sub-shell when wiring. When protecting the bare place where the cable needs to be grounded, wrap the metal foil 1 first, set the tape 3, and then set the outer protective shell 4, the middle protective shell 5, and then use the locking device to lock the middle sub-shell. When grounding is required for maintenance, first remove the screw 9, open the locking shell 8, open the middle sub-shell, and connect the ground wire to the outer surface of the wrapped metal foil.

[0050] Example 2:

[0051] On the basis of Embodiment 1, this embodiment has made the following improvements:

[0052] An automatic spring-opening device for the middle sub-shell, such as a torsion spring mechanism 12, is provided at the hinged joint between the middle sub-shell and the outer end protective casing 4 of a protective device for the bare grounding of the cable.

[0053] An automatic spring-opening device for the middle sub-shell, such as a torsion spring mechanism 12, is provided at the hinged joint between the middle sub-shell and the outer protective casing 4 of a waterproof and moisture-proof processing mechanism used for the bare grounding of the cable.

[0054] When grounding is required for maintenance, the difference from Embodiment 1 is that after opening the locking shell 8, the middle sub-shell automatically pops open, exposing the metal foil wrapped around the grounding part, and then the grounding wire can be used. Clasp to open the shell 10.

[0055] Example 3:

[0056] On the basis of Embodiment 2, this embodiment has made the following improvements:

[0057] A locking device for a protective device for the bare ground of a cable is changed to include two locking half shells 13, which are movably connected, and the inner diameter of the cavity formed by the coincidence is the same as that of the middle protective shell 5. The outer diameter matches. One end of the locking device is arranged on the outer periphery of the outer protective shell 4, and the other end is arranged on the outer periphery of the middle protective shell 5. At least one locking half shell 13 is provided with a first baffle 16 on the inner side close to the middle protective shell 5. 16 The inner arc is matched with the outer diameter of the outer end protective shell 4, the outer end protective shell 4 is provided with a limiting baffle 15, and a compression spring 14 is provided on the outside of the outer protective shell, corresponding to the limiting baffle 15 and the first block Between the plates 16, the inner diameter of the compression spring is adapted to the outer diameter of the outer protective shell 4, which can realize the automation of the opening and closing of the middle protective shell. Preferably, a second baffle is provided on the other inner side of the at least one locking half shell 13 17. The inner arc of the second baffle 17 is matched with the outer diameter of the outer protective shell 4, the second baffle 17 is located outside the limit baffle 15, and the second baffle 17 and the compression spring are respectively located on the limit baffle 15 The advantage of this structure is that the locking shell can be limited, so that the locking shell always keeps covering the outer periphery of the junction of the outer protective shell and the movable end of the middle protective shell when there is no external force. The difference between this structure and the first and second embodiments is that there must be two outer protective shells 4, which are respectively arranged on the cable sheaths at the two outer ends of the bare wire portion.

[0058] A locking device for a waterproof and moisture-proof processing mechanism used for the bare ground of the cable is also improved as described above. The method of use is: when protecting the bare exposed part of the cable that needs to be grounded, first wrap the metal foil 1, set the tape 3, then set the outer protective shell 4, the middle protective shell 5, set the compression spring outside the outer shell 4, and then use the lock The locking device locks the middle sub-shell. When grounding is required for maintenance, pull the locking device to the middle protective shell in the opposite way, the middle sub-shell will automatically pop open, exposing the metal foil wrapped around the grounding part, and then the grounding wire can be inspected and repaired. After the repair is completed, lock the device Connect to the opposite direction of the middle protective shell, close the middle split shell, loosen the locking device, and automatically lock the middle split shell.