High-protection-grade visual straight-through cable T-connection device

Abstract

The utility model relates to the field of cable butt joint devices, in particular to a high-protection-grade visual straight-through cable T joint device, which comprises a top cover and a base, a plug-in type flange for a cable to penetrate through is arranged on the side wall of the base, and the plug-in type flange comprises a first plug-in block and a second plug-in block. The opposite inner sides of the first inserting block and the second inserting block are connected with a first sealing sleeve and a second sealing sleeve correspondingly. A wiring module is arranged in the base and comprises a wiring base and a wiring terminal, the wiring terminal comprises a terminal base and a compression bolt, a cable to be wired penetrates through the terminal base, and the compression bolt compresses the cable from the upper portion of the cable. According to the utility model, through the split and detachable plug-in type flanges, the through connection requirements of cables with different sizes can be met; and the top cover is designed visually, so that the connection and use conditions of internal cables can be checked at any time without opening the cover, and the maintenance is convenient.

Description

Technical Field

[0001] The utility model relates to the field of cable docking devices, in particular to a high-protection-level visual straight-through cable T-connection device. Background Art

[0002] The concept of cable T-junction stems from the need for flexibility and efficiency in power distribution networks. In traditional power distribution systems, power is delivered to various destinations via a main cable. However, T-junction technology allows branches to be created on the main cable, thus supplying power to multiple users or areas. This eliminates the need for laying separate cable runs, saving costs and simplifying network layout.

[0003] With the advancement of global urbanization, the demand for electricity continues to grow. As a key component of urban underground cable networks, the market demand for cable T-junctions is also increasing. Cable T-junctions can be performed on-site according to actual needs, typically using specialized tools and materials such as wire splitters, piercing clamps, or T-junction boxes. However, due to environmental constraints, such as humidity and flooding, T-junction cable terminals are at risk of water immersion and oxidation, resulting in increased resistance and heat at the cable junctions, and even cable burnouts and power outages. Water immersion can also cause leakage at the cable T-junctions, potentially resulting in electric shock hazards. Utility Model Content

[0004] The utility model aims to solve the above problems and provides a high protection level visual straight-through cable T-connector, which adopts the following technical solutions:

[0005] A high-protection-level visual straight-through cable T-connection device comprises a top cover and a base, wherein the top cover and the base form a closed chamber when they are buckled together, and the top cover is made of a transparent material; a plug-in flange for allowing the cable to pass through is installed on the side wall of the base, and the plug-in flange comprises a first plug-in block and a second plug-in block which are separated and arranged above and below, and the opposite inner sides of the first plug-in block and the second plug-in block are respectively connected to a first sealing sleeve and a second sealing sleeve, and the opposite inner sides of the first sealing sleeve and the second sealing sleeve are enclosed to form a cable through-hole, and the inner diameter of the cable through-hole is consistent with the outer diameter of the cable; a wiring module is arranged inside the base, and the wiring module comprises a wiring base and a wiring terminal, and the wiring terminal is fixedly connected to the base through the wiring base, and the wiring terminal comprises a terminal base, a sliding fixing plate and a tightening bolt, the sliding fixing plate is detachably mounted on the terminal base, and the tightening bolt is threadedly connected to the sliding fixing plate, the cable to be connected is placed between the terminal base and the sliding fixing plate, and the cable is tightened from above by the tightening bolt.

[0006] On the basis of the above solution, the first sealing sleeve is detachably connected to the first plug-in block, and the second sealing sleeve is detachably connected to the second plug-in block.

[0007] Preferably, the first plug-in block is fixedly connected to the second plug-in block on one side thereof, and a positioning groove is provided on the second plug-in block on the other side thereof, and when the first plug-in block is connected to the second plug-in block, the plug-in block is clamped in the positioning groove.

[0008] Preferably, first clamping grooves are provided on both sides of the first plug-in block, second clamping grooves are provided on both sides and the bottom of the second plug-in block, and flange clamping grooves are provided on the side walls of the base. The plug-in flange can be detachably clamped in the flange clamping groove, and the side walls of the base on both sides and the bottom of the flange clamping groove are clamped in the first clamping groove and the second clamping groove.

[0009] On the basis of the above scheme, a first sealing protrusion is provided on the upper edge of the base, and a second sealing protrusion is provided on the upper edge of the plug-in flange. When the plug-in flange is installed in the flange slot, the first sealing protrusion is flush with the upper edge of the second sealing protrusion; a top cover sealing groove is provided on the inner side of the top cover, and a sealing ring is provided in the top cover sealing groove. The lower edge of the sealing ring is lower than the edge of the sealing groove. When the top cover is buckled on the base, the first sealing protrusion and the second sealing protrusion abut and press against the sealing ring.

[0010] Preferably, the terminal block also includes a connecting rivet and a cable pressing plate. The cable pressing plate is arranged below the clamping bolt and does not rotate synchronously with the clamping bolt. The connecting rivet passes through the lower part of the cable pressing plate and the clamping bolt, and keeps the axial position of the clamping bolt and the cable pressing plate fixed.

[0011] Based on the above solution, the bottom surface of the cable pressing plate is arc-shaped, and the arc-shaped opening faces downward.

[0012] Preferably, a plurality of wiring terminals are provided on the wiring base, partitions are provided between adjacent wiring terminals, and the partitions are fixedly connected to the wiring base; a plurality of clamping bolts are provided on the terminal base, and the plurality of clamping bolts are distributed along the length direction of the cable.

[0013] Preferably, the closed chamber is filled with electronic sealant.

[0014] Preferably, a plurality of knockout holes of standard sizes are provided on the side wall of the base.

[0015] The beneficial effects of the utility model are as follows: the split and detachable plug-in flange can meet the through-connection requirements of cables of different sizes; the visual design of the top cover can check the connection and use of the internal cables at any time without opening the cover, which is convenient for maintenance; the sealing effect is good and the sealing level is high, which can effectively prevent the cable connection points from being corroded by external dust and water vapor; the structure is simple and compact, the installation is simple and reliable, and the equipment use and installation costs are effectively reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1: Schematic diagram of the appearance structure of the utility model;

[0017] Figure 2 : Schematic diagram of the structure of the utility model when the top cover is opened;

[0018] Figure 3 : Schematic diagram of the internal structure of the top cover of the utility model;

[0019] Figure 4 : Schematic diagram of the internal structure of the base of the utility model;

[0020] Figure 5 : Exploded view of the plug-in flange structure of the utility model;

[0021] Figure 6 : Schematic diagram of the wiring module structure of the utility model;

[0022] Figure 7 : Schematic diagram of the structure of the wiring terminal of the utility model;

[0023] Figure 8 : A cross-sectional view of the wiring terminal structure of the utility model;

[0024] Figure 9 : Schematic diagram of the connection state of the tightening bolt and the cable pressing piece of the utility model. DETAILED DESCRIPTION

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0026] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; they can refer to direct connection or indirect connection through an intermediate medium; they can refer to internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0027] In the description of the present invention, it should be understood that the terms "center", "length", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and 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, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0028] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0029] like Figures 1 to 9 As shown, a high-protection-level visual straight-through cable T-connection device includes a top cover 11 and a base 21. When the top cover 11 and the base 21 are buckled together, a closed chamber is formed inside. The top cover 11 is made of transparent material, which is convenient for observing the internal situation of the closed chamber. In a relatively harsh use environment, after the cable docking is completed, electronic sealant is filled in the closed chamber to effectively prevent dust and moisture from entering. A plurality of top cover connecting holes 12 are provided on the top cover 11, and a plurality of base connecting holes 22 are provided on the base 21. The base connecting holes 22 correspond to the positions of the top cover connecting holes 12. The connecting bolts 14 pass through the top cover connecting holes 12 and are connected to the base connecting holes 22, thereby completing the relative fixed installation of the top cover 11 and the base 21.

[0030] The sidewalls of the base 21 are mounted with plug-in flanges for cable insertion. Multiple plug-in flanges can be installed on the corresponding sidewalls of the base 21 according to actual installation requirements. Preferably, there are three plug-in flanges, arranged in a T-shape. The plug-in flanges include a first plug-in block 31 and a second plug-in block 36, separated from each other. The first plug-in block 31 is fixedly connected to a plug-in block 35 on the side facing the second plug-in block 36. The second plug-in block 36 has a positioning groove 39 on the side facing the first plug-in block 31. When the first plug-in block 31 and the second plug-in block 36 are connected, the plug-in block 35 snaps into the positioning groove 39 to achieve positioning and connection. The opposing inner sides of the first plug-in block 31 and the second plug-in block 36 are connected to a first sealing sleeve 34 and a second sealing sleeve 38, respectively. The opposing inner sides of the first sealing sleeve 34 and the second sealing sleeve 38 enclose a cable through-hole, the inner diameter of which matches the outer diameter of the cable. The plug-in flanges are made of silicone material, which has insulating properties and relatively good toughness and elasticity. The first plug-in block 31 and the second plug-in block 36 are made of hard silicone to connect with the side wall of the base 21 and have sufficient strength. The first sealing sleeve 34 and the second sealing sleeve 38 are made of soft silicone to tightly enclose the cable.

[0031] Preferably, the first sealing sleeve 34 is detachably connected to the first plug-in block 31, and the second sealing sleeve 38 is detachably connected to the second plug-in block 36, so that the first sealing sleeve 34 and the second sealing sleeve 38 of different sizes can be replaced according to the installation needs of cables of different sizes.

[0032] First engaging grooves 33 are provided on both sides of the first plug-in block 31, second engaging grooves 37 are provided on both sides and at the bottom of the second plug-in block 36, and flange engaging grooves 23 are provided on the side walls of the base 21. The plug-in flanges are removably engaged in the flange engaging grooves 23. The side walls of the base 21 on both sides and at the bottom of the flange engaging grooves 23 engage in the first engaging grooves 33 and the second engaging grooves 37. By removing and replacing different plug-in flanges, the device can be reused or replaced in the event of an operational error.

[0033] A first sealing protrusion 24 is provided on the upper edge of the base 21, and a second sealing protrusion 32 is provided on the upper edge of the plug-in flange. When the plug-in flange is installed in the flange slot 23, the first sealing protrusion 24 is flush with the upper edge of the second sealing protrusion 32. A top cover sealing groove 13 is provided on the inner side of the top cover 11, and a sealing ring is provided in the top cover sealing groove 13. The lower edge of the sealing ring is lower than the edge of the sealing groove 13. When the top cover 11 is buckled onto the base 21, the first sealing protrusion 24 and the second sealing protrusion 32 abut and press against the sealing ring, thereby meeting the sealing requirements of the device.

[0034] like Figures 6 to 9As shown, the terminal includes a terminal base 51, a sliding fixing plate 53, and a clamping bolt 54. The sliding fixing plate 53 is detachably mounted on the terminal base 51. Preferably, a sliding groove is provided on the terminal in the horizontal direction, and the sliding fixing plate 53 is slidably disposed in the sliding groove. The two sides of the sliding fixing plate 53 are tilted upward to improve the connection stability. The clamping bolt 54 is threadedly connected to the sliding fixing plate 53. The cable to be connected is placed between the terminal base 51 and the sliding fixing plate 53, and the clamping bolt 54 clamps the cable from above. During the connection process, the main cable can be peeled off without disconnecting the line. After removing the sliding fixing plate 53, the main cable is pressed into the terminal base 51. Then, the sliding fixing plate 53 is installed, and the position of the clamping bolt 54 is adjusted to complete the pressing.

[0035] Specifically, the terminal block also includes a connecting rivet 55 and a cable pressing piece 56. The cable pressing piece 56 is arranged below the clamping bolt 54 and does not rotate synchronously with the clamping bolt 54. The connecting rivet 55 passes through the lower part of the cable pressing piece 56 and the clamping bolt 54, and keeps the axial position of the clamping bolt 54 and the cable pressing piece 56 fixed. Through the above-mentioned connecting device, the bottom of the cable pressing piece 56 can always contact the surface of the cable and prevent relative rotation during the rotation of the clamping bolt 54, thereby ensuring the reliability of the crimping. Preferably, the bottom surface of the cable pressing piece 56 is arc-shaped, and the arc opening is downward, thereby increasing the contact area between the cable pressing piece 56 and the cable and ensuring the current carrying capacity of the cable docking.

[0036] Preferably, the terminal base 51 is provided with multiple clamping bolts 54, which are distributed along the length of the cable, thereby improving the compression effect on the cable, increasing the compression area, and ensuring the quality of cable connection. The wiring base 41 is provided with multiple wiring terminals, and partitions 43 are provided between adjacent wiring terminals. The partitions are fixedly connected to the wiring base 41 to replace the traditional five-finger sleeve structure, facilitating wire separation operations.

[0037] A plurality of standard-sized knockout holes 25 are provided on the side wall of the base 21. According to the needs of the operation site, the knockout holes 25 of different standard sizes at different positions can be knocked out to install cable pipe joints or cable sealing joints for T-connecting the cables.

[0038] The present invention is described above by way of examples, but the present invention is not limited to the above specific embodiments. Any changes or modifications based on the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A high protection level visual straight-through cable T-connector, characterized in that: The invention comprises a top cover (11) and a base (21), wherein the top cover (11) and the base (21) are buckled together to form a closed chamber inside, and the top cover (11) is made of a transparent material; a plug-in flange for allowing a cable to pass through is installed on the side wall of the base (21), and the plug-in flange comprises a first plug-in block (31) and a second plug-in block (36) which are separated and arranged up and down, and the relative inner sides of the first plug-in block (31) and the second plug-in block (36) are respectively connected to a first sealing sleeve (34) and a second sealing sleeve (38), and the relative inner sides of the first sealing sleeve (34) and the second sealing sleeve (38) are enclosed to form a cable through hole, and the inner side of the cable through hole is The diameter is consistent with the outer diameter of the cable; a wiring module is provided inside the base (21), the wiring module includes a wiring base (41) and a wiring terminal, the wiring terminal is fixedly connected to the base (21) through the wiring base (41), the wiring terminal includes a terminal base (51), a sliding fixing plate (53) and a clamping bolt (54), the sliding fixing plate (53) is detachably mounted on the terminal base (51), the clamping bolt (54) is threadedly connected to the sliding fixing plate (53), the cable to be connected is placed between the terminal base (51) and the sliding fixing plate (53), and the clamping bolt (54) is used to clamp the cable from above the cable.

2. A high protection level visual straight-through cable T-connector according to claim 1, characterized in that: The first sealing sleeve (34) is detachably connected to the first plug-in block (31), and the second sealing sleeve (38) is detachably connected to the second plug-in block (36).

3. A high protection level visual straight-through cable T-connector according to claim 1, characterized in that: The first plug-in block (31) is fixedly connected to the plug-in block (35) on one side facing the second plug-in block (36), and a positioning groove (39) is provided on the second plug-in block (36) on one side facing the first plug-in block (31). When the first plug-in block (31) is connected to the second plug-in block (36), the plug-in block (35) is clamped in the positioning groove (39).

4. The high protection level visual straight-through cable T-connector according to claim 1, characterized in that: First clamping grooves (33) are provided on both sides of the first plug-in block (31), second clamping grooves (37) are provided on both sides and the bottom of the second plug-in block (36), a flange clamping groove (23) is provided on the side wall of the base (21), the plug-in flange is detachably clamped in the flange clamping groove (23), and the side walls of the base (21) on both sides and the bottom of the flange clamping groove (23) are clamped in the first clamping groove (33) and the second clamping groove (37).

5. A high protection level visual straight-through cable T-connector according to claim 4, characterized in that: A first sealing protrusion (24) is provided on the upper edge of the base (21), and a second sealing protrusion (32) is provided on the upper edge of the plug-in flange. When the plug-in flange is installed in the flange slot (23), the first sealing protrusion (24) is flush with the upper edge of the second sealing protrusion (32). A top cover sealing groove (13) is provided on the inner side of the top cover (11), and a sealing ring is provided in the top cover sealing groove (13). The lower edge of the sealing ring is lower than the edge of the sealing groove (13). When the top cover (11) is buckled onto the base (21), the first sealing protrusion (24) and the second sealing protrusion (32) abut against and press the sealing ring.

6. The high protection level visual straight-through cable T-connector according to claim 1, characterized in that: The terminal further comprises a connecting rivet (55) and a cable pressing piece (56), wherein the cable pressing piece (56) is arranged below the clamping bolt (54) and does not rotate synchronously with the clamping bolt (54), and the connecting rivet (55) penetrates the lower part of the cable pressing piece (56) and the clamping bolt (54), and keeps the axial position of the clamping bolt (54) and the cable pressing piece (56) fixed.

7. A high protection level visual straight-through cable T-connector according to claim 6, characterized in that: The bottom surface of the cable pressing piece (56) is arc-shaped, and the arc-shaped opening faces downward.

8. The high protection level visual straight-through cable T-connector according to claim 1, characterized in that: A plurality of wiring terminals are provided on the wiring base (41), and a partition (43) is provided between adjacent wiring terminals, wherein the partition is fixedly connected to the wiring base (41); a plurality of clamping bolts (54) are provided on the terminal base (51), and the plurality of clamping bolts (54) are distributed along the length direction of the cable.

9. The high protection level visual straight-through cable T-connector according to claim 1, characterized in that: The closed chamber is filled with electronic sealant.

10. The high protection level visual straight-through cable T-connector according to claim 1, characterized in that: A plurality of knockout holes (25) of standard size are provided on the side wall of the base (21).

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