Crosslinked polyethylene insulated cable joint and cable

Abstract

The invention provides a crosslinked polyethylene insulated cable joint and a cable, and belongs to the technical field of cables. The invention provides a cross-linked polyethylene insulated cable joint. The cross-linked polyethylene insulated cable joint comprises a male joint, a female joint and a sealing device, the male joint is arranged at one end of the first cross-linked polyethylene insulated cable; the female joint is arranged at one end of the second cross-linked polyethylene insulated cable; the sealing device is arranged on the male joint and the female joint; the sealing device comprises a sealing protective cylinder and a pressing assembly, the sealing protective cylinder is arranged on the male connector, and the sealing protective cylinder is made of a soft rubber material and can be turned over; the pressing assembly is arranged on the female connector and used for pressing the closed pile casing. After the male connector and the female connector are in butt joint, the sealing protection barrel is turned over to completely surround the male connector and the female connector, then the sealing protection barrel is pressed through the pressing assembly, sealing treatment can be achieved, operation is easy and convenient, and the sealing effect is good.

Description

Technical Field

[0001] This invention belongs to the field of cable technology, and more specifically, relates to a cross-linked polyethylene insulated cable joint and cable termination. Background Technology

[0002] Cable joints, also known as cable heads, are an indispensable component in cable laying. Their existence ensures that cable segments can be smoothly connected to form a continuous, integrated circuit. These connection points not only bear the responsibility of ensuring unobstructed circuitry but also must guarantee the cable's sealing and insulation levels to ensure its safe and reliable operation.

[0003] Currently, various types of cable connectors are available on the market. However, installing these connectors onto the ends of two cables is often time-consuming. Chinese Patent Publication No. CN118970524B discloses a detachable cable connector. The entire device simply involves inserting the female connector into the male connector to lock the connection, making disassembly and installation much easier. No special tools are required, making it suitable for confined spaces and emergency situations, thus reducing maintenance difficulty and improving repair efficiency. Simultaneously, the optimized structural design ensures superior sealing and connection stability during cable connection, effectively preventing adverse effects from external factors on the system and further enhancing the reliability of the entire cable transmission system. While the disassembly and installation process of the aforementioned patent is simplified, its sealing performance is not fully guaranteed, and the male and female connectors still carry the risk of disconnection.

[0004] Based on this, the applicant's application relates to a cross-linked polyethylene insulated cable joint and cable. Summary of the Invention

[0005] The purpose of this invention is to provide a cross-linked polyethylene insulated cable joint and cable to solve the technical problem that the sealing performance of cable joints in the prior art is not sufficiently guaranteed and there is still a risk of disconnection.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: In a first aspect, a cross-linked polyethylene (XLPE) insulated cable connector is provided, comprising a male connector, a female connector, and a sealing device; the male connector is disposed at one end of a first XLPE insulated cable, the end face of the male connector having a first threading plate with a plurality of first threading holes; the female connector is disposed at one end of a second XLPE insulated cable, the end face of the female connector having a second threading plate with a plurality of second threading holes; the sealing device is disposed on the male connector and the female connector; wherein, the sealing device comprises a sealing sleeve and a pressing assembly; the sealing sleeve is disposed on the male connector, the sealing sleeve being made of soft rubber to allow for flipping; the pressing assembly is disposed on the female connector for pressing the sealing sleeve.

[0007] In a second aspect, a cross-linked polyethylene (XLPE) insulated cable is provided, comprising a first XLPE insulated cable, a second XLPE insulated cable, and the aforementioned XLPE insulated cable connector; one end of the first XLPE insulated cable and one end of the second XLPE insulated cable are connected via the XLPE insulated cable connector.

[0008] The beneficial effects of the cross-linked polyethylene insulated cable joint provided by the present invention are as follows: Compared with the prior art, the cable joint proposed by the present invention includes a male joint, a female joint, and a sealing device. The sealing device includes a sealing sleeve and a pressing component. The sealing sleeve is made of soft rubber. After the male and female joints are connected, the cross-linked polyethylene insulated cable joint can be sealed. At this time, the sealing sleeve is flipped over so that it completely surrounds the connection between the male and female joints. Then, the pressing component is used to press the sealing sleeve tightly to achieve the sealing treatment. The operation is simple and the sealing effect is good.

[0009] The beneficial effects of the cross-linked polyethylene (XLPE) insulated cable provided by this invention are as follows: Compared with the prior art, the cross-linked polyethylene (XLPE) insulated cable proposed by this invention includes a first XLPE insulated cable, a second XLPE insulated cable, and the aforementioned XLPE insulated cable connector. One end of the first XLPE insulated cable and one end of the second XLPE insulated cable are connected through the aforementioned XLPE insulated cable connector, and the XLPE insulated cable connector is sealed by a sealing device, thus ensuring its sealing effect. Furthermore, one end of the first XLPE insulated cable and one end of the second XLPE insulated cable can achieve multi-level locking, improving the connection stability between the two. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of the structure of a cross-linked polyethylene insulated cable joint provided in an embodiment of the present invention; Figure 2 This is a structural schematic diagram from another perspective of a cross-linked polyethylene insulated cable joint provided in an embodiment of the present invention; Figure 3 A cross-sectional view of a cross-linked polyethylene insulated cable joint provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of a male connector of a cross-linked polyethylene insulated cable joint provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of a male connector of a cross-linked polyethylene insulated cable joint from another perspective, provided as an embodiment of the present invention. Figure 6 This is a schematic diagram of the structure of a female connector of a cross-linked polyethylene insulated cable joint provided in an embodiment of the present invention; Figure 7 This is a schematic diagram of the structure of a female connector of a cross-linked polyethylene insulated cable joint after removing the clamping component and the drainage component, provided in an embodiment of the present invention. Figure 8 This is a schematic diagram of the pressing mechanism of a cross-linked polyethylene insulated cable joint provided in an embodiment of the present invention; Figure 9 This is a schematic diagram of the compression assembly and drainage assembly of a cross-linked polyethylene insulated cable joint provided in an embodiment of the present invention; Figure 10 A structural schematic diagram of a cross-linked polyethylene insulated cable connector's clamping assembly and drainage assembly provided in an embodiment of the present invention; Figure 11 This is a schematic diagram of the structure of a cross-linked polyethylene insulated cable connector when the drainage sleeve, push-pull post, and pull ring are connected, according to an embodiment of the present invention. Figure 12 This is a schematic diagram of the structure of a cross-linked polyethylene insulated cable connector with its clamping body installed on a fixed truncated cone, according to an embodiment of the present invention. Figure 13 for Figure 3 Enlarged view of point A in the middle; Figure 14 for Figure 3 Enlarged view of point B in the middle; Figure 15 for Figure 3 Enlarged view of point C in the middle; Figure 16 for Figure 2 The method diagram at point D; Figure 17 for Figure 3 Enlarged view of point E in the middle.

[0012] The labels for the attached figures are as follows: 100. Male connector; 110. First wire guide plate; 111. First wire guide hole; 120. First protrusion; 121. First slot; 122. First movable slot; 123. Pressing hole; 124. First telescopic hole; 125. Second annular groove; 1251. Slide rail; 1252. Stop block; 130. Pressing mechanism; 131. Pressing cylinder; 1311, First stop surface; 132, Pressing post; 1321, Second abutment surface; 1322, Second stop surface; 1323, Push ring; 200, Female connector; 210, Second cable guide plate; 211, Second cable hole; 220. Second protrusion; 221. Second movable groove; 222. First telescopic groove; 2221. Telescopic column; 22221, Second push groove; 22222, Third abutment surface; 223, Through groove; 2231, Movable block; 22311, Fourth abutment surface; 224, First annular groove; 225, Groove; 230, Arc-shaped drainage groove; 300, First locking assembly; 310, First locking element; 311, Engaging teeth; 312, First push groove; 3121, First abutment surface; 320, Second locking element; 321, Engaging groove; 400, Second locking assembly; 410. Third locking element; 411. Telescopic cylinder; 4111. Second telescopic groove; 4112. Snap-fit ​​block; 412. Positioning pin; 420. Fourth locking element; 421. Insertion hole; 500. Sealing device; 510. Sealing sleeve; 511. Conical cylinder; 512. Folded stretching cylinder; 513. Sealing plate; 5131. Annular groove; 520. Clamping assembly; 521. Fixed frustum; 5211. Third telescopic groove; 5212, Push-pull hole; 5213, Water-blocking rubber block; 522, Pressing body; 5221, Push block; 530. Fixing groove; 540. Drainage assembly; 541. Drainage sleeve; 542. Push-pull column; 5421, Pull ring; 543, Push block; 600, Support assembly; 610, First fixing seat; 620. First clamp and ring; 630. Second clamp and ring; 640. Second fixed seat; 650. Rotating column. Detailed Implementation

[0013] To make the technical problems, technical solutions, and beneficial effects of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the described embodiments are only a part of the embodiments of this application, not all of them. The specific embodiments described herein are only used to explain the invention and are not intended to limit the invention. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0014] It should be further noted that the accompanying drawings and embodiments of the present invention mainly describe the concept of the present invention. Based on this concept, some specific forms and arrangements of connection relationships, positional relationships, power mechanisms, power supply systems, hydraulic systems and control systems may not be fully described. However, under the premise that those skilled in the art understand the concept of the present invention, they can implement the above-mentioned specific forms and arrangements in a well-known manner.

[0015] When a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0016] The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself. The terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0017] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways, and the spatial relative descriptions used herein will be interpreted accordingly.

[0018] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, and "several" means one or more, unless otherwise explicitly specified.

[0019] The present invention will now describe a cross-linked polyethylene insulated cable connector.

[0020] like Figures 1 to 17 As shown, the present invention provides a cross-linked polyethylene insulated cable connector, including a male connector 100, a female connector 200, and a sealing device 500; the male connector 100 is disposed at one end of a first cross-linked polyethylene insulated cable, and the end face of the male connector 100 is provided with a first threading plate 110, and the first threading plate 110 is provided with a plurality of first threading holes 111; the female connector 200 is disposed at one end of a second cross-linked polyethylene insulated cable, and the end face of the female connector 200 is provided with a second threading plate 210, and the second threading plate 210 is provided with a plurality of second threading holes 211; the sealing device 500 is disposed on the male connector 100 and the female connector 200; wherein, the sealing device 500 includes a sealing sleeve 510 and a pressing assembly 520; the sealing sleeve 510 is disposed on the male connector 100, and the sealing sleeve 510 is made of soft rubber so that it can be flipped over; the pressing assembly 520 is disposed on the female connector 200 and is used to press the sealing sleeve 510.

[0021] This invention provides a cross-linked polyethylene insulated cable connector. Compared with the prior art, the cable connector proposed in this invention includes a male connector 100, a female connector 200, and a sealing device 500. The sealing device 500 includes a sealing sleeve 510 and a pressing component 520. The sealing sleeve 510 is made of soft rubber. After the male connector 100 and the female connector 200 are connected, the cross-linked polyethylene insulated cable connector can be sealed. At this time, the sealing sleeve 510 is flipped over so that it completely surrounds the connection between the male connector 100 and the female connector 200. Then, the pressing component 520 is used to press the sealing sleeve 510 tightly, thus achieving the sealing process. The operation is simple and the sealing effect is good.

[0022] like Figures 1-3 As shown, in a specific embodiment of the cross-linked polyethylene insulated cable connector provided in this invention, the sealing sleeve 510 includes a conical sleeve 511, a folded stretching sleeve 512, and a sealing plate 513. The end of the conical sleeve 511 is connected to the outer periphery of the male connector 100. The conical sleeve 511, the folded stretching sleeve 512, and the sealing plate 513 are connected in sequence. The folded stretching sleeve 512 is provided with folding stretching pleats so that the folded stretching sleeve 512 can be stretched and folded.

[0023] like Figure 3 , Figures 9 to 12 as well as Figure 15 As shown, in a specific embodiment of the cross-linked polyethylene insulated cable connector provided in this invention, the clamping assembly 520 includes a fixed frustum 521 and a clamping body 522. The fixed frustum 521 is bonded to the outer surface of the female connector 200, and the fixed frustum 521 has a third telescopic groove 5211. The clamping body 522 is disposed in the third telescopic groove 5211. A pushing block 5221 is provided on the outer surface of the clamping body 522, and an eighth elastic element is provided between the clamping body 522 and the bottom wall of the third telescopic groove 5211. An annular groove (5131) is provided on one side of the sealing plate 513. The end of the clamping body 522 is arc-shaped and matches the annular groove (5131). The fixed frustum 521 and the clamping body 522 are provided with a cooperating fixing groove 530. A fastener is provided in the fixing groove 530. The fastener can be a post or the like, to prevent the clamping body 522 from moving.

[0024] Here, after the male connector 100 and female connector 200 are locked, to ensure the sealing performance of this cable connector, a sealing sleeve 510 is integrally formed and connected to one side of the first protrusion 120 of the male connector 100. This sleeve includes a conical cylinder 511, a folding tension cylinder 512, and a sealing plate 513, all made of soft rubber, possessing a certain degree of elasticity and deformation capability. When sealing this cable connector is required, the sealing plate is pulled towards the female connector 200, causing the conical cylinder 511 to fit over the end face of the first protrusion 120, and the folding tension cylinder 512 to fit over the outer surfaces of the first protrusion 120 and the second protrusion 220. Because the folding tension pleats on the folding tension cylinder 512 have good tensile and folding properties, they can adapt to the length of the first protrusion 120 and the second protrusion 220 in real time, ensuring complete enclosure. During this process, the conical cylinder 511 and the folding stretching cylinder 512 are flipped over. When the sealing plate 513 reaches the fixed frustum 521, the sealing plate 513 is flipped over again so that the sealing plate 513 is located between the fixed frustum 521 and the second protrusion 220. At this time, by pushing the push block 5221, the push block 5221 is pushed into the third telescopic groove 5211, and the specific position of the sealing plate can be adjusted. When the pressing body 522 and the annular groove (5131) are opposite, the push block 5221 can be released, and the pressing body 522 is pressed into the annular groove (5131) to complete the seal. After the seal is completed, in order to prevent the pressing body 522 from moving, a fixing groove 530 is provided on the fixed frustum 521 and the pressing body 522. Fasteners are provided in the fixing groove 530 so that the pressing body 522 and the fixed frustum 521 are fixedly connected.

[0025] like Figure 1 and Figure 3 As shown, in a specific embodiment of the cross-linked polyethylene insulated cable connector provided in this invention, a locking device is further included. The locking device includes a first protrusion 120, a second protrusion 220, and a plurality of locking structures. The first protrusion 120 is disposed at the end of the male connector 100; the second protrusion 220 is disposed at the end of the female connector 200; and a plurality of locking structures are disposed on the first protrusion 120 and the second protrusion 220. The locking structure includes a first locking component 300 and a second locking component 400. The first locking component 300 is disposed on the first protrusion 120 and the second protrusion 220 to achieve a first-level locking of the male connector 100 and the female connector 200. The second locking component 400 is disposed on the first protrusion 120 and the second protrusion 220 to achieve a second-level locking of the male connector 100 and the female connector 200.

[0026] Specifically, when connecting one end of the first cross-linked polyethylene insulated cable and one end of the second cross-linked polyethylene insulated cable through this cable connector, it is only necessary to insert the male connector 100 into the female connector 200, and then lock the first locking component 300 to achieve a first-level lock on the male connector 100 and the female connector 200; then lock the second locking component 400 to achieve a second-level lock on the male connector 100 and the female connector 200. By achieving multi-level locking between the male connector 100 and the female connector 200 through the first locking component 300 and the second locking component 400, the situation of the male connector 100 and the female connector 200 being disconnected due to pulling the cable can be greatly avoided, ensuring the normal operation of the cable. When it is necessary to connect the first cross-linked polyethylene insulated cable and the second cross-linked polyethylene insulated cable, the portion inside the insulation layer of the first cross-linked polyethylene insulated cable is inserted into the female connector 200 through the first through hole 111 and the second through hole 211, and the portion inside the insulation layer of the second cross-linked polyethylene insulated cable is connected.

[0027] like Figure 3 , Figure 6 , Figure 8 and Figure 13 As shown, in a specific embodiment of the cross-linked polyethylene insulated cable connector provided in this invention, the first locking assembly 300 includes a first locking member 310 and a second locking member 320. A first slot 121 is provided in the first protrusion 120, and a first movable groove 122 is connected in the first slot 121. The first locking member 310 is movably disposed in the first movable groove 122. A second movable groove 221 is provided in the second protrusion 220, and the second locking member 320 is movably disposed in the second movable groove 221. The first locking member 310 is provided with a plurality of engagement teeth 311, and the second locking member 320 is provided with a plurality of engagement grooves 321. The end of the second locking member 320 has an arc-shaped structure, and the outer surface of the plurality of engagement teeth 311 forms a near-arc-shaped structure to prevent damage to the engagement teeth 311 when the end of the second locking member 320 contacts the plurality of engagement teeth 311.

[0028] It should be noted that when the male connector 100 and the female connector 200 need to be locked at the first level, the male connector 100 and the female connector 200 need to be aligned so that their end faces are aligned and the male connector 100 is inserted into the female connector 200. This allows the second locking member 320 to enter the first slot 121 of the first protrusion 120. During the alignment process, the second locking member 320 can press against the first locking member 310 and squeeze it, causing the biting teeth 311 to move. When the biting groove 321 of the second locking member 320 contacts the biting teeth 311, the biting teeth 311 will bite into the biting groove 321, locking the second locking member 320. When the second locking member 320 is inserted into the first slot 121 and contacts the engaging teeth 311, the second locking member 320 may directly damage the engaging teeth 311. Therefore, in order to reduce damage to the engaging teeth 311, the end of the second locking member 320 is designed as an arc-shaped structure, and the outer surfaces of several engaging teeth 311 are formed into an arc-shaped structure. Thus, when the second locking member 320 moves in the first slot 121, the arc-shaped structure at its end will first contact the engaging teeth 311. 1. Contact, and because the outer surface of the biting tooth 311 is an arc-shaped structure, the arc-shaped structure of the second locking member 320 will push the biting tooth 311 into the first movable groove 122, and will not directly damage the biting tooth 311. This design improves the stability between the first locking member 310 and the second locking member 320. When the biting groove 321 of the second locking member 320 contacts the biting tooth 311 of the first locking member 310, the biting tooth 311 will bite into the biting groove 321.

[0029] like Figure 3 , Figure 8 and Figure 13 As shown, in a specific embodiment of the cross-linked polyethylene insulated cable connector provided in this invention, a plurality of pressing holes 123 are provided on one side of the first protrusion 120, and a pressing mechanism 130 is provided in the plurality of pressing holes 123. The pressing mechanism 130 includes a pressing cylinder 131 and a pressing post 132. The pressing cylinder 131 can be fixed in the pressing hole 123 by adhesive or snap-fit. The pressing post 132 is movably disposed in the pressing cylinder 131, and a push ring 1323 is connected to the end of the pressing post 132. The first locking member 310 has a first push groove 312, the first push groove 312 has a first abutting surface 3121, the end of the pressing column 132 has a second abutting surface 1321, the first abutting surface 3121 and the second abutting surface 1321 abut against each other; a first elastic member is provided between the first locking member 310 and the pressing cylinder 131, a first stop surface 1311 is provided inside the pressing cylinder 131, a second stop surface 1322 is provided on the pressing column 132, and a second elastic member is provided between the first stop surface 1311 and the second stop surface 1322; More specifically, to ensure precise engagement of the meshing teeth 311 with the meshing groove 321, a pressing hole 123 is provided on one side of the first protrusion 120. A pressing mechanism 130 is provided within the pressing hole 123, which includes a pressing cylinder 131 and a pressing post 132. The pressing post 132 is movably disposed within the pressing cylinder 131 and is blocked by a baffle at the end of the pressing cylinder 131 to prevent the pressing post 132 from disengaging from the pressing cylinder 131. If the push ring 1323 is pressed inward, it will cause the pressing post 132 to move. When the abutting surface 3121 and the second abutting surface 1321 abut against each other, the first locking member 310 will move and retract into the pressing cylinder 131. At this time, the second locking member 320 will not be blocked by the biting teeth 311. When the biting groove 321 of the second locking member 320 fully reaches the side of the biting teeth 311, the pressing post 132 is released. The pressing post 132 will be pushed back to its original position by the second elastic member. The first locking member 310 will also be pushed back to its original position by the first elastic member, so that the biting teeth 311 are fully bitten into the biting groove 321.

[0030] like Figure 3 , Figure 6 and Figure 17 As shown, the second protrusion 220 is provided with a first telescopic groove 222, the first telescopic groove 222 is provided with a telescopic post 2221, a third elastic member is provided between the telescopic post 2221 and the bottom wall of the first telescopic groove 222, and the end face of the telescopic post 2221 is spherical; a second push groove 22221 is provided on the telescopic post 2221, the second push groove 22221 is provided with a third abutment surface 22222, a through groove 223 is also provided in the second protrusion 220, the through groove 223 communicates with the first telescopic groove 222, a movable block 2231 is provided in the through groove 223, a fourth elastic member is provided between the movable block 2231 and the through groove 223, the movable block 2231 is provided with a fourth abutment surface 22311, the third abutment surface 22222 and the fourth abutment surface 22311 abut against each other, and the through groove 223 communicates with the second movable groove 221, and the movable block 2231 is connected to the second locking member 320.

[0031] It should be understood that, to prevent the second locking member 320 from being accidentally broken because it is located on the outer end face of the second protrusion 220, the second locking member 320 is movably located inside the second protrusion 220. When the male connector 100 and the female connector 200 are installed, the end of the male connector 100 will contact the end face of the telescopic column 2221 during the insertion of the female connector 200. Because the end face of the telescopic column 2221 is spherical, the telescopic column 2221 will be squeezed and retracted into the first telescopic groove 222. During the retraction process, due to the third abutment surface 222... 22 and the fourth abutment surface 22311 abut against each other, so the movable block 2231 will also move. When the movable block 2231 moves, since the movable block 2231 and the end of the second locking member 320 are connected, the second locking member 320 will be pushed out of the second movable groove 221 and into the first slot 121 of the first protrusion 120. Thus, when the male connector 100 and the female connector 200 do not need to be installed together, the second locking member 320 is always located in the second movable groove 221, avoiding damage or breakage of the second locking member 320 due to accidental situations.

[0032] like Figure 3 , Figure 4 , Figure 6 and Figure 14 As shown, in a specific embodiment of the cross-linked polyethylene insulated cable connector provided in this invention, the second locking assembly 400 includes a third locking member 410 and a fourth locking member 420. A plurality of first telescopic holes 124 are provided in the first protrusion 120, and the third locking member 410 is disposed within the plurality of first telescopic holes 124. A first annular groove 224 and a second annular groove 125 are provided in the second protrusion 220. The fourth locking member 420 is movably disposed within the first annular groove 224 and... The movable block 2231 is connected, the third locking member 410 includes a movable telescopic cylinder 411, the fourth locking member 420 has an insertion hole 421, the second annular groove 125 has a slide 1251, the slide 1251 has a stop block 1252, the stop block 1252 is located on one side of the telescopic cylinder 411, and is used to block the telescopic cylinder 411 before the second locking is performed, so as to prevent it from extending into the second annular groove 125. A fifth elastic member is provided between one side of the stop block 1252 and the bottom wall of the second annular groove 125. Here, the primary and secondary locking of the male connector 100 and the female connector 200 are performed simultaneously. When the secondary locking of the male connector 100 and the female connector 200 is required, the male connector 100 and the female connector 200 need to be aligned so that their end faces are aligned. The male connector 100 is then inserted into the female connector 200. The end face of the male connector 100 will continuously press the telescopic column 2221, causing it to retract into the first telescopic groove 222. This will drive the movable block 2231 to move. The movable block 2231 will then drive the fourth locking member 420 into the second annular groove 125 of the first protrusion 120. When it moves within the second annular groove 125, it will push the stop block 1252 to move. When the insertion hole 421 of the fourth locking member 420 is aligned with the first telescopic hole 124, the telescopic cylinder 411 of the third locking member 410 will be inserted into the insertion hole 421 of the fourth locking member 420, thus completing the secondary locking.

[0033] like Figure 14 As shown, the third locking member 410 also includes a positioning post 412, which is threadedly connected to the first telescopic hole 124, and the telescopic cylinder 411 is sleeved and snapped onto the positioning post 412. A sixth elastic member is provided between the end of the positioning post 412 and the end of the telescopic cylinder 411. A plurality of second telescopic grooves 4111 are provided at the other end of the telescopic cylinder 411. A snap-fit ​​block 4112 is provided in the second telescopic groove 4111, and a seventh elastic member is provided between the snap-fit ​​block 4112 and the bottom wall of the second telescopic groove 4111.

[0034] It should be explained in detail that the circumferential thread of the positioning post 412 is connected to the first telescopic hole 124. When the insertion hole 421 of the fourth locking member 420 is opposite to the first telescopic hole 124, the telescopic cylinder 411 quickly enters the insertion hole 421 under the pushing force of the sixth elastic member. Several locking blocks 4112 are movably provided at the end of the telescopic cylinder 411. When the end of the telescopic cylinder 411 penetrates the insertion hole 421, the locking blocks 4112 will be pushed out of the second telescopic groove 4111 to lock the fourth locking member 420, further ensuring the locking effect.

[0035] like Figure 2 and Figure 16As shown, in a specific embodiment of the cross-linked polyethylene insulated cable connector provided in this invention, a plurality of mutually cooperating support components 600 are provided on the first protrusion 120 and the second protrusion 220. The support component 600 includes a locking structure and a rotating structure. The locking structure is provided on the outer periphery of the first protrusion 120. The locking structure includes a first fixed seat 610, a first latch and ring 620 and a second latch and ring 630. The ends of the first latch and ring 620 and the second latch and ring 630 are coaxially hinged to the first fixed seat 610. A ninth elastic member is provided between the ends of the first fixed seat 610 and the first latch and ring 620, and between the ends of the first fixed seat 610 and the second latch and ring 630. The first latch and ring 620 and the second latch and ring 630 form a locking space. The rotating structure includes a second fixed seat 640 and a rotating column 650. The end of the rotating column 650 is hinged to the second fixed seat 640.

[0036] Specifically, before the sealing sleeve 510 is fitted onto the first protrusion 120 and the second protrusion 220, the rotating column 650 needs to be rotated to lock it into the locking space. During rotation, the outer surface of the rotating column 650 contacts the upper ends of the first locking ring 620 and the second locking ring 630. Then, by pressing down, the rotating column 650 will enter the locking space, and the first locking ring 620 and the second locking ring 630 will be reset under the action of the ninth limiting member, locking the rotating column 650. This is achieved by setting the support assembly 600. On the one hand, it can further enhance the connection stability between the male connector 100 and the female connector 200. On the other hand, it can support the sealing sleeve 510. If the sealing sleeve 510 is not supported, it may stick to the first protrusion 120 and the second protrusion 220 under the influence of the external environment. If it remains in this state for a long time, it will easily cause the sealing sleeve 510 to lose its elasticity. Furthermore, if an object squeezes the sealing sleeve 510, it will directly cause damage to the sealing sleeve 510 and the cable connector. By setting the support component 600, the sealing sleeve 510 can be supported, allowing it to maintain its original state as much as possible, avoiding loss of elasticity, and ensuring the normal operation of the cable connector.

[0037] like Figure 3 , Figure 7 , Figures 9 to 12 as well as Figure 15As shown, in a specific embodiment of the cross-linked polyethylene insulated cable connector provided in this invention, the sealing device 500 further includes a drainage assembly 540. The drainage assembly 540 includes a drainage sleeve 541 and a plurality of push-pull posts 542. The drainage sleeve 541 is disposed in the groove 225 on the second protrusion 220 and connected to the plurality of push-pull posts 542. One side of the drainage sleeve 541 has an arc-shaped structure. A plurality of push-pull holes 5212 are opened on the fixed truncated cone 521, and the plurality of push-pull posts 542... 2. Several push-pull holes 5212 are passed through, and the end of the push-pull column 542 is connected to a pull ring 5421; several arc-shaped drainage grooves 230 are provided on the outer surface of the female connector 200, and a water-pushing block 543 is provided on the drainage sleeve 541. The water-pushing block 543 is located in the arc-shaped drainage groove 230 and fits against the arc-shaped drainage groove 230. Several water-blocking blocks 5213 are provided on the fixed truncated cone 521. The water-blocking blocks 5213 are located in the arc-shaped drainage groove 230 and fit against the arc-shaped drainage groove 230.

[0038] To minimize the possibility of water entering between the first protrusion 120, the second protrusion 220, and the folding stretching cylinder 512 from between the sealing plate 513 and the second protrusion 220, a drainage component 540 is provided. When the pull ring 5421 is pulled outward, it will pull the push-pull column 542, which in turn will move the drainage sleeve 541, thereby scraping away the water droplets accumulated on the outer surface of the female connector 200. It should be noted that one side of the drainage sleeve 541 has an arc-shaped structure. When the drainage sleeve 541 is pulled to contact the fixed truncated cone 521, the arc-shaped structure of the drainage sleeve 541 is squeezed and deformed, thereby squeezing most of the water droplets into the arc-shaped drainage groove 230. Then, the water-pushing block 543 on the drainage sleeve 541 pushes it out of the water-blocking block 5213 and discharges it through the arc-shaped drainage groove 230. After that, the water-blocking block 5213 resets to prevent external water from entering again. In addition, the first, second, third, fourth, fifth, sixth, seventh, eighth, and ninth elastic elements mentioned above can be springs or elastic rubber, etc.

[0039] Based on the same inventive concept, a cross-linked polyethylene insulated cable is provided, comprising a first cross-linked polyethylene insulated cable, a second cross-linked polyethylene insulated cable, and the aforementioned cross-linked polyethylene insulated cable connector; one end of the first cross-linked polyethylene insulated cable and one end of the second cross-linked polyethylene insulated cable are connected by the cross-linked polyethylene insulated cable connector.

[0040] The present invention provides a cross-linked polyethylene (XLPE) insulated cable. Compared with the prior art, the cross-linked polyethylene (XLPE) insulated cable proposed in this invention includes a first XLPE insulated cable, a second XLPE insulated cable, and the aforementioned XLPE insulated cable connector. One end of the first XLPE insulated cable and one end of the second XLPE insulated cable are connected through the aforementioned XLPE insulated cable connector, and the XLPE insulated cable connector is sealed by a sealing device 500, ensuring its sealing effect. Furthermore, one end of the first XLPE insulated cable and one end of the second XLPE insulated cable can achieve multi-level locking, improving the connection stability between the two.

[0041] The above are merely 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 within the scope of protection of the present invention.

Claims

1. A cross-linked polyethylene insulated cable joint, characterized in that, include: A male connector (100) is provided at one end of a first cross-linked polyethylene insulated cable. The end face of the male connector (100) is provided with a first threading plate (110), and the first threading plate (110) is provided with a plurality of first threading holes (111). A female connector (200) is provided at one end of a second cross-linked polyethylene insulated cable. The end face of the female connector (200) is provided with a second wire guide plate (210), and the second wire guide plate (210) is provided with a plurality of second wire guide holes (211). A sealing device (500) is provided on the male connector (100) and the female connector (200); The sealing device (500) includes: A sealing sleeve (510) is provided on the male connector (100). The sealing sleeve (510) is made of soft rubber so that it can be flipped over. A clamping assembly (520) is provided on the female connector (200) for clamping the sealing sleeve (510).

2. The cross-linked polyethylene insulated cable joint as described in claim 1, characterized in that: The sealing sleeve (510) includes a conical sleeve (511), a folded stretching sleeve (512), and a sealing plate (513). The end of the conical sleeve (511) is sealed to the outer surface of the male connector (100). The conical sleeve (511), the folded stretching sleeve (512), and the sealing plate (513) are connected in sequence. The folded stretching sleeve (512) is provided with folding stretching pleats so that the folded stretching sleeve (512) can be stretched and folded.

3. The cross-linked polyethylene insulated cable joint as described in claim 2, characterized in that: The clamping assembly (520) includes a fixed frustum (521) and a clamping body (522). The fixed frustum (521) is located on the outer surface of the female connector (200), and the fixed frustum (521) has a third telescopic groove (5211). The clamping body (522) is located in the third telescopic groove (5211). A pushing block (5221) is provided on the outer surface of the clamping body (522), and the clamping body (522) and the female connector (200) are connected. An eighth elastic element is provided between the bottom walls of the third telescopic groove (5211). An annular groove (5131) is provided on one side of the sealing plate (513). The end of the pressing body (522) is arc-shaped and matches the annular groove (5131). The fixed truncated cone (521) and the pressing body (522) are provided with a fixing groove (530) for cooperation. Fasteners are provided in the fixing groove (530) to prevent the pressing body (522) from moving.

4. The cross-linked polyethylene insulated cable joint as described in claim 3, characterized in that: It also includes a locking device, the locking device comprising: The first protrusion (120) is provided at the end of the male connector (100); The second protrusion (220) is located at the end of the female connector (200); Several locking structures are provided on the first protrusion (120) and the second protrusion (220); The locking structure includes: A first locking component (300) is disposed on the first protrusion (120) and the second protrusion (220) to achieve a first-level locking of the male connector (100) and the female connector (200); The second locking component (400) is disposed on the first protrusion (120) and the second protrusion (220) to achieve a two-level locking of the male connector (100) and the female connector (200).

5. The cross-linked polyethylene insulated cable joint as described in claim 4, characterized in that: The first locking assembly (300) includes a first locking member (310) and a second locking member (320). The first protrusion (120) is provided with a first slot (121), and the first slot (121) is connected to a first movable groove (122). The first locking member (310) is movably disposed in the first movable groove (122). The second protrusion (220) is provided with a second movable groove (221), and the second locking member (320) is movably disposed in the second movable groove (221). The first locking member (310) is provided with a plurality of engagement teeth (311), and the second locking member (320) is provided with a plurality of engagement grooves (321). The end of the second locking member (320) is an arc-shaped structure, and the outer surfaces of the plurality of engagement teeth (311) form an arc-shaped structure to prevent damage to the engagement teeth (311) when the end of the second locking member (320) contacts the plurality of engagement teeth (311).

6. The cross-linked polyethylene insulated cable joint as described in claim 5, characterized in that: The first protrusion (120) has several pressing holes (123) on one side, and a pressing mechanism (130) is provided in each of the pressing holes (123). The pressing mechanism (130) includes a pressing cylinder (131) and a pressing post (132). The pressing cylinder (131) is bonded or snapped into the pressing hole (123). The pressing post (132) is movably disposed in the pressing cylinder (131), and a push ring (1323) is connected to the end of the pressing post (132). A first push groove (312) is provided on the first locking member (310). The first push groove (312) is provided with a first abutment surface (3121), and the end of the pressing column (132) is provided with a second abutment surface (1321). The first abutment surface (3121) and the second abutment surface (1321) abut against each other. A first elastic element is provided between the first locking member (310) and the pressing cylinder (131). A first stop surface (1311) is provided inside the pressing cylinder (131), and a second stop surface (1322) is provided on the pressing column (132). A second elastic element is provided between the first stop surface (1311) and the second stop surface (1322). The second protrusion (220) is provided with a first telescopic groove (222), and a telescopic column (2221) is provided in the first telescopic groove (222). A third elastic element is provided between the bottom wall of the telescopic column (2221) and the first telescopic groove (2222), and the end face of the telescopic column (2221) is spherical. A second push groove (22221) is provided on the telescopic column (2221), and a third abutment surface (22222) is provided in the second push groove (22221). A through groove (223) is also provided in the second protrusion (220). The through groove (223) communicates with the first telescopic groove (222). A movable block (2231) is provided in the through groove (223). A fourth elastic member is provided between the movable block (2231) and the through groove (223). The movable block (2231) is provided with a fourth abutment surface (22311). The third abutment surface (22222) and the fourth abutment surface (22311) abut against each other. The through groove (223) communicates with the second movable groove (221). The movable block (2231) is connected to the second locking member (320).

7. The cross-linked polyethylene insulated cable joint as described in claim 6, characterized in that: The second locking assembly (400) includes a third locking member (410) and a fourth locking member (420). The first protrusion (120) has a plurality of first telescopic holes (124), and the third locking member (410) is disposed within the plurality of first telescopic holes (124). The second protrusion (220) has a first annular groove (224), and the first protrusion (120) has a second annular groove (125). The fourth locking member (420) is movably disposed within the first annular groove (224) and... The movable block (2231) is connected, the third locking member (410) includes a telescopic cylinder (411) that is movably set, the fourth locking member (420) is provided with a hole (421), the second annular groove (125) is provided with a slide (1251), the slide (1251) is provided with a stop (1252) that is movably set on the slide (1251), the stop (1252) is provided on one side of the telescopic cylinder (411), and a fifth elastic member is provided between one side of the stop (1252) and the bottom wall of the second annular groove (125); The third locking member (410) further includes a positioning post (412), which is disposed in the first telescopic hole (124), and the telescopic cylinder (411) is sleeved and snapped onto the positioning post (412). A sixth elastic member is provided between the end of the positioning post (412) and the end of the telescopic cylinder (411). A plurality of second telescopic grooves (4111) are provided at the other end of the telescopic cylinder (4111). A snap-fit ​​block (4112) is provided in the second telescopic groove (4111), and a seventh elastic member is provided between the snap-fit ​​block (4112) and the bottom wall of the second telescopic groove (4111).

8. The cross-linked polyethylene insulated cable joint as described in claim 4, characterized in that: The first protrusion (120) and the second protrusion (220) are provided with a plurality of mutually cooperating support components (600). The support component (600) includes a locking structure and a rotating structure. The locking structure is provided on the outer periphery of the first protrusion (120). The locking structure includes a first fixing seat (610), a first locking ring (620), and a second locking ring (630). The ends of the first locking ring (620) and the second locking ring (630) are coaxially hinged to the first... A ninth elastic element is provided on the fixed base (610) between the ends of the first fixed base (610) and the first clip and ring (620) and between the ends of the first fixed base (610) and the second clip and ring (630). The first clip and ring (620) and the second clip and ring (630) form a clip and space. The rotating structure includes a second fixed base (640) and a rotating column (650). The end of the rotating column (650) is hinged to the second fixed base (640).

9. A cross-linked polyethylene insulated cable joint as described in claim 4, characterized in that: The sealing device (500) further includes a drainage assembly (540), which includes a drainage sleeve (541) and a plurality of push-pull posts (542). The drainage sleeve (541) is disposed in a groove (225) on the second protrusion (220) and connected to the plurality of push-pull posts (542). One side of the drainage sleeve (541) has an arc-shaped structure. A plurality of push-pull holes (5212) are opened on the fixed truncated cone (521), and the plurality of push-pull posts (542) pass through the plurality of push-pull holes (5212). (542) has a pull ring (5421) connected to its end; the outer surface of the female connector (200) is provided with a number of arc-shaped drainage grooves (230); the drainage sleeve (541) is provided with a water pusher (543); the water pusher (543) is located in the arc-shaped drainage groove (230) and fits against the arc-shaped drainage groove (230); and the fixed truncated cone (521) is provided with a number of water-blocking rubber blocks (5213); the water-blocking rubber blocks (5213) are located in the arc-shaped drainage groove (230) and fit against the arc-shaped drainage groove (230).

10. A cross-linked polyethylene insulated cable, characterized in that, include: First cross-linked polyethylene insulated cable; Second cross-linked polyethylene insulated cable; The cross-linked polyethylene insulated cable joint as described in claims 1-9, wherein one end of the first cross-linked polyethylene insulated cable and one end of the second cross-linked polyethylene insulated cable are connected through the cross-linked polyethylene insulated cable joint.

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