A cable having a sealed moisture resistant cable end

Abstract

This utility model relates to the field of cable technology, specifically to a cable with a sealed moisture-proof cable end, including a female connector and a male connector; one end of the female connector is provided with a first clamping sleeve and a first insert sleeve, with a first locking screw sleeve connected to the outside of the first clamping sleeve; a first support sleeve is provided inside the female connector and is connected to the clamping screw sleeve; the male connector is fixedly connected to the clamping screw sleeve and the second support sleeve, and the other end is provided with a second clamping sleeve and a second insert sleeve, with a second locking screw sleeve connected to the outside of the second clamping sleeve; during assembly, first screw the first locking screw sleeve to retract the first clamping sleeve to clamp the outer sheath at the end; then screw the clamping screw sleeve into the female connector, so that the first support sleeve is inserted between the clamping screw sleeve and the second support sleeve to form a three-layer sealing interface; finally, screw the second locking screw sleeve to clamp the outer sheath at the other end; this design, through the synergistic effect of double-point clamping and three-layer sealing, blocks moisture penetration, and the layered protection improves moisture resistance and flame retardancy.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, specifically to a cable with a sealed, moisture-proof cable end. Background Technology

[0002] Cables with sealed moisture-proof cable ends refer to a protective system that integrates a multi-layer sealing structure at the cable terminal. Through the synergistic effect of mechanical crimping, material barrier, and geometric sealing, it prevents environmental moisture, liquid water, and corrosive media from penetrating the cable. Its necessity lies in the fact that when cables operate in humid, temperature-different, or liquid-immersed environments, moisture penetration can cause a decrease in conductor insulation resistance, electrochemical corrosion of metal components, and a surge in dielectric loss, ultimately leading to short circuits or breakdown faults. This end, through a dynamic sealing mechanism, ensures the electrical safety and service life of the cable in harsh environments.

[0003] However, under long-term thermal cycling conditions, gaps may form at the sealing interface of traditional single-layer sealing structures due to material shrinkage differences, posing a risk of liquid water seeping along the sheath-connector interface. Furthermore, in conventional synchronous locking processes, the tightening torque may be transmitted to the conductor connection through metal components, increasing the risk of conductor lattice deformation or breakage. Utility Model Content

[0004] The purpose of this invention is to provide a cable with a sealed, moisture-proof cable end to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A cable with a sealed, moisture-proof cable end includes a female connector. A first clamping sleeve is fixedly installed at one end of the female connector. A first insert is fixedly installed at the same end of the female connector and inside the first clamping sleeve. A first locking screw is threaded onto the outside of the first clamping sleeve. A first support sleeve is fixedly installed inside the opposite end of the female connector and the first clamping sleeve. A clamping screw is threaded onto the inside of the female connector. The clamping screw is fixedly installed at one end of a male connector. A second support sleeve is fixedly installed at the same end of the male connector and inside the clamping screw. When the female connector is connected to the clamping screw, the first support sleeve is inserted between the clamping screw and the second support sleeve.

[0006] Preferably, a second clamping cylinder is fixedly installed at the opposite end of the male connector and the clamping cylinder, and a second insert is fixedly installed at the same end of the male connector and the second clamping cylinder and inside the second clamping cylinder, and a second locking cylinder is installed on the outside of the second clamping cylinder by means of threads.

[0007] Preferably, the first insert and the second insert are respectively inserted into the inner side of the outer sheath, and when the first locking screw and the second locking screw are threadedly installed on the outer side of the first clamping cylinder and the second clamping cylinder, the outer sheath is clamped and fixed.

[0008] Preferably, the outer sheath is covered with a fire-retardant layer, the fire-retardant layer is covered with an outer lining layer, the outer lining layer is covered with an armor layer, and the armor layer is covered with an inner lining layer.

[0009] Preferably, the inner lining layer is covered with a waterproof layer, the waterproof layer is covered with an inner sheath, the inner sheath is covered with a wrapping layer, and the wrapping layer is filled with a cable filling layer.

[0010] Preferably, the cable filling layer has a conductor shielding layer inside, the conductor shielding layer is covered with a conductor insulation layer inside, and the conductor insulation layer has a conductor inside.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This cable with a sealed moisture-proof cable end forms a three-stage radial sealing interface by axially coupling the first and second support cylinders of the connecting female and male ends. Combined with the threaded locking stress of the clamping screw cylinder, it achieves gradient pressure blocking of the axial water vapor channel.

[0012] This cable with a sealed moisture-proof cable end adopts a step-by-step timing control of the rotation operation of the first locking screw and the second locking screw, and independently applies a balanced clamping force at both ends of the cable, which avoids local stress concentration and tearing of the sheath while eliminating the risk of torsional deformation at the conductor connection point. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the male connector of this utility model; Figure 3 This is a schematic diagram of the planar structure of the conductor of this utility model; Figure 4 This utility model Figure 2 Enlarged diagram of point B in the middle.

[0014] In the diagram: 101, female connector; 102, first clamping sleeve; 103, first insert sleeve; 104, first locking screw sleeve; 106, first support sleeve; 107, clamping screw sleeve; 108, male connector; 109, second support sleeve; 110, second clamping sleeve; 111, second insert sleeve; 112, second locking screw sleeve; 113, outer sheath; 114, fire-retardant layer; 115, outer lining layer; 116, armor layer; 117, inner lining layer; 118, waterproof layer; 119, inner sheath; 120, wrapping layer; 121, cabling filling layer; 122, conductor shielding layer; 123, conductor insulation layer; 124, conductor. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figures 1-4 As shown, this utility model provides a technical solution: A cable with a sealed and moisture-proof cable end includes a female connector 101. A first clamping sleeve 102 is fixedly installed at one end of the female connector 101. A first insert sleeve 103 is fixedly installed at the same end of the female connector 101 and the first clamping sleeve 102 and inside the first clamping sleeve 102. A first locking screw sleeve 104 is threadedly installed on the outside of the first clamping sleeve 102. A first support sleeve 106 is fixedly installed inside the opposite end of the female connector 101 and the first clamping sleeve 102. A clamping screw sleeve 107 is threadedly installed inside the female connector 101. The clamping screw sleeve 107 is fixedly installed at one end of a male connector 108. A second support sleeve 109 is fixedly installed at the same end of the male connector 108 and the clamping screw sleeve 107 and inside the clamping screw sleeve 107. When the female connector 101 is connected to the clamping screw sleeve 107, the first support sleeve 106 is inserted between the clamping screw sleeve 107 and the second support sleeve 109.

[0017] The above scheme achieves the following: the female connector serves as a carrier for other components; the first clamping cylinder functions as a clamping base for the cable end; the first insert cylinder positions and crimps the cable outer sheath; the first locking screw cylinder drives the clamping cylinder to retract radially and achieves a threaded locking effect; the female connector provides the male connector mating cavity and the mounting base for the first support cylinder; the clamping screw cylinder achieves the axial positioning and threaded connection of the male connector; the male connector supports the second support cylinder and the cable conductor channel; the second support cylinder provides the conductor mating shielding cavity; and the clearance fit between the first and second support cylinders forms a three-stage axial sealing interface.

[0018] In this embodiment, preferably, a second clamping cylinder 110 is fixedly installed at one end opposite to the connecting male head 108 and the clamping cylinder 107. A second insert cylinder 111 is fixedly installed at the same end of the connecting male head 108 and the second clamping cylinder 110 and inside the second clamping cylinder 110. A second locking cylinder 112 is threadedly installed on the outside of the second clamping cylinder 110.

[0019] The above scheme achieves the function of clamping base at the other end of the cable through the second clamping cylinder, the positioning and crimping function of the outer sheath of the cable on this side through the second insert cylinder, and the radial contraction effect of the second clamping cylinder is driven by the second locking screw.

[0020] In this embodiment, preferably, the first insert 103 and the second insert 111 are respectively inserted into the inner side of the outer sheath 113, and the first locking screw 104 and the second locking screw 112 are threadedly installed on the outer side of the first clamping cylinder 102 and the second clamping cylinder 110, so that the outer sheath 113 is clamped and fixed.

[0021] The above scheme achieves the outermost waterproof mechanical protection of the cable through the outer sheath, achieves the balanced deformation clamping effect of the sheath through the double-point crimping of the first and second plugs, and generates the deformation sealing effect of the sheath through the synchronous tightening of the first and second locking screws.

[0022] In this embodiment, preferably, the outer sheath 113 is covered with a fire-retardant layer 114, the fire-retardant layer 114 is covered with an outer lining layer 115, the outer lining layer 115 is covered with an armor layer 116, and the armor layer 116 is covered with an inner lining layer 117.

[0023] The above scheme achieves the function of a high-temperature ceramic fire barrier through a fire-retardant layer, provides a foundation and buffer effect for the installation of the armor layer through the outer lining layer, provides protection against mechanical impact through the armor layer, and forms a waterproof layer support structure and secondary water-blocking effect through the inner lining layer.

[0024] In this embodiment, preferably, the inner lining layer 117 is covered with a waterproof layer 118, the waterproof layer 118 is covered with an inner sheath 119, the inner sheath 119 is covered with a wrapping layer 120, and the wrapping layer 120 is filled with a cabling filling layer 121.

[0025] The above scheme achieves the adsorption and blocking effect of gaseous water molecules through the waterproof layer, provides the function of protecting the substrate through the inner sheath, achieves the effect of balanced stress distribution in the cable structure through the wrapping layer, and compensates for the gaps caused by thermal expansion and contraction through the cable filling layer.

[0026] In this embodiment, preferably, the cable filling layer 121 is provided with a conductor shielding layer 122, the conductor shielding layer 122 is covered with a conductor insulation layer 123, and the conductor insulation layer 123 is provided with a conductor 124.

[0027] The above scheme eliminates the electric field distortion effect on the conductor surface through the conductor shielding layer, maintains the insulation and isolation between the charged body and the outside world through the conductor insulation layer, and realizes the core function of current transmission through the conductor.

[0028] In this embodiment, a cable with a sealed moisture-proof cable end is used by first rotating the first locking screw 104. The conical surface of its inner wall engages with the variable-diameter thread of the first clamping cylinder 102, creating a wedge effect that drives the clamping cylinder to contract radially. This causes the built-in first insert 103 to press against the inner wall of the cable's outer sheath 113, forming an initial fixation. Next, the stripped conductor 124 is pressed against a metal terminal and inserted into the cavity of the male connector 108, allowing the conductor 124 to precisely penetrate the internal cavity of the second support cylinder 109. During this process, the connection point of the conductor 124 is pre-positioned in an electromagnetic shielding environment. When the clamping... When the screw cylinder 107 is screwed into the threaded connector 101, it pushes the connector 108 to press the connector 101 axially. At this time, the conductors 124 at both ends make physical contact in the metal cavity of the second support cylinder 109. During the synchronous action, the first support cylinder 106, fixed to the connector 101, is precisely inserted into the annular gap between the screw cylinder 107 and the second support cylinder 109. The radial compression of the three layers of metal cylinder walls causes the elastic sealing material to deform and compensate, forming an axial sealing interface with gradient pressure, which immediately blocks the intrusion path of external moisture. Finally, the second locking screw cylinder 112 is rotated through the same tapered thread. The structure drives the second clamping cylinder 110 to contract, uniformly clamping the outer sheath 113 at the cable tail end. At this time, the double-point locking ensures that the entire cable sheath is in a state of stress balance. The bidirectional clamping force of the outer sheath 113 works synergistically with the internal protective layer: when liquid water penetrates the outer sheath 113 (using chlorinated polyethylene rubber), the superhydrophobic microfibers of the inner lining layer 117 guide water molecules to the waterproof layer 118 (containing an aluminum-plastic composite membrane), while the aluminum-plastic composite membrane captures gaseous water vapor through molecular adsorption. In a fire scenario, the fireproof layer (using ceramicized silicone rubber) expands due to heat to form a ceramicized hard shell, which, together with the armor layer 116 (using... The galvanized steel wire mesh and other materials work together to resist structural collapse. The conductor 124 connection point is kept stable under multiple protections: the metal shielding cavity suppresses electromagnetic interference, the in-situ cured insulator is seamlessly connected to the original insulation layer (using EPDM rubber) through molecular bonding; the dynamic expansion of the cabling filling layer 121 compensates for temperature deformation, and the spiral stress of the wrapping layer 120 and the filling layer together construct a suspension support system, so that the conductor 124 is protected from vibration and micro-wear; the rigid-flexible structure of the whole process alternately dampes and resolves mechanical impact, and finally maintains the high stability and sealing protection of the conductor 124 and the insulation system under dynamic working conditions.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A cable with a sealed, moisture-proof cable end, comprising a connecting female (101), characterized in that: A first clamping sleeve (102) is fixedly installed at one end of the connecting female head (101). A first insert sleeve (103) is fixedly installed at the same end of the connecting female head (101) and the first clamping sleeve (102) and located inside the first clamping sleeve (102). A first locking screw sleeve (104) is threadedly installed on the outside of the first clamping sleeve (102). A first support sleeve (106) is fixedly installed inside the connecting female head (101) at the opposite end of the first clamping sleeve (102). (101) A clamping screw cylinder (107) is installed inside by a thread. The clamping screw cylinder (107) is fixedly installed at one end of the connecting male head (108). The connecting male head (108) is at the same end as the clamping screw cylinder (107) and is located inside the clamping screw cylinder (107). A second support cylinder (109) is fixedly installed inside the clamping screw cylinder (107). When the connecting female head (101) is connected to the clamping screw cylinder (107), the first support cylinder (106) is inserted between the clamping screw cylinder (107) and the second support cylinder (109).

2. The cable with a sealed moisture-proof cable end according to claim 1, characterized in that: The male connector (108) is fixedly installed with a second clamping cylinder (110) at one end opposite to the clamping cylinder (107). The male connector (108) and the second clamping cylinder (110) are fixedly installed with a second insert (111) at the same end and inside the second clamping cylinder (110). The second clamping cylinder (110) is threadedly installed with a second locking cylinder (112) on the outside of the second clamping cylinder (110).

3. A cable with a sealed moisture-proof cable end according to claim 2, characterized in that: The first insert (103) and the second insert (111) are respectively inserted into the inner side of the outer sheath (113), and when the first locking screw (104) and the second locking screw (112) are threadedly installed on the outer side of the first clamping cylinder (102) and the second clamping cylinder (110), the outer sheath (113) is clamped and fixed.

4. A cable with a sealed moisture-proof cable end according to claim 3, characterized in that: The outer sheath (113) is covered with a fire-retardant layer (114), the fire-retardant layer (114) is covered with an outer lining layer (115), the outer lining layer (115) is covered with an armor layer (116), and the armor layer (116) is covered with an inner lining layer (117).

5. A cable with a sealed moisture-proof cable end according to claim 4, characterized in that: The inner lining layer (117) is covered with a waterproof layer (118), the waterproof layer (118) is covered with an inner sheath (119), the inner sheath (119) is covered with a wrapping layer (120), and the wrapping layer (120) is filled with a cabling filling layer (121).

6. A cable with a sealed moisture-proof cable end according to claim 5, characterized in that: The cable filling layer (121) has a conductor shielding layer (122) inside, the conductor shielding layer (122) is covered with a conductor insulation layer (123) inside, and the conductor insulation layer (123) has a conductor (124) inside.

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