Multi-core pre-branch cable wiring structure

Abstract

The utility model discloses a multi-core pre-branched cable wiring structure, which is characterized in that an upper shell and a lower shell are assembled to form a complete shell, a main cable is arranged in a main line hole in a penetrating manner, a branched cable is arranged in a branched line hole, the main cable and the branched cable in the shell are electrically connected, and the main cable and the branched cable are fixedly connected through a fixing piece. The fixing part comprises a screw, a locking block and a nut in threaded connection with the screw, a fixing groove is formed in one end of the screw in the axial direction of the screw, the fixing groove penetrates through the screw relative to the radial direction of the screw, the locking block is slidably arranged in the fixing groove and comprises a connecting block, and an abutting plate is arranged on the side, close to the bottom of the fixing groove, of the connecting block. A clamping plate is arranged on the other side of the connecting block, the nut is located between the abutting plate and the clamping plate, and the connecting block is rotationally arranged in the nut. The cable connector lug of the multi-core pre-branch cable wiring structure is more stable in connection, and the phenomena of loosening and heating do not occur easily.

Description

Technical Field

[0001] The utility model relates to the technical field of cable connection, in particular to a multi-core pre-branching cable connection structure. Background Art

[0002] Cables are usually rope-like cables made of several or several groups of wires twisted together. Each group of wires are insulated from each other and are often twisted around a center wire. The entire outside is covered with a highly insulating covering. The cable has the characteristics of being powered inside and insulated outside. Cable joints need to be connected, so a cable connector is needed.

[0003] The cable connectors currently on the market simply press two cable terminals together using bolts. After long-term use, they are prone to loosening and heating, and may even cause safety hazards such as fire. Utility Model Content

[0004] In order to make the cable terminal connection more stable and reduce the phenomenon of loosening and heating, the present application provides a multi-core pre-branching cable wiring structure.

[0005] The present application provides a multi-core pre-branched cable wiring structure that adopts the following technical solution:

[0006] A multi-core pre-branching cable wiring structure comprises an upper shell and a lower shell, wherein the upper shell and the lower shell are fixed by fasteners, and the upper shell and the lower shell are assembled to form a complete shell, the shell is provided with a main line hole, the main line hole passes through the shell, the shell is also provided with a branch line hole connected to the inside of the shell, a main cable is passed through the main line hole, a branch cable is provided in the branch line hole, the main cable and the branch cable in the shell are electrically connected, and the main cable and the branch cable are fixedly connected by a fixing member, the fixing member comprises a screw, a locking block and a nut threadedly connected to the screw, one end of the screw is provided with a fixing groove along its axial direction, the fixing groove passes through the screw relative to the radial direction of the screw, the locking block is slidably arranged in the fixing groove, the locking block comprises a connecting block, a pressure plate is provided on one side of the connecting block close to the bottom of the fixing groove, a clamping plate is provided on the other side of the connecting block, the nut is located between the pressure plate and the clamping plate, and the connecting block is rotatably arranged in the nut.

[0007] By adopting the above technical solution, the main cable is passed through the fixing groove, and the connector of the branch cable is also inserted into the fixing groove. The nut is rotated to drive the locking block to move together. After tightening the nut, the main cable and the branch cable can be stably fixed together, and the pressure plate is pressed against the cable connector. The setting of the pressure plate can increase the contact area with the cable connector, making the contact more stable. At the same time, after tightening the nut, the clamping plate can be clamped onto the nut, so that the nut is clamped between the pressure plate and the clamping plate, making it difficult for the nut to loosen during long-term use, thereby making the cable terminal connection more stable and reducing the phenomenon of loosening and heating.

[0008] Optionally, the upper shell is provided with a glue injection hole for injecting sealant into the interior, the glue injection hole is connected to the interior of the shell, and the upper shell is provided with a sealing cover for sealing the glue injection hole.

[0009] By adopting the above technical solution, after injecting sealant into the glue filling hole, the shell can be filled with sealant, which can improve the sealing performance inside the shell on the one hand and further prevent the nut from loosening easily on the other hand.

[0010] Optionally, a sealing groove is provided on one side of the lower shell relative to the upper shell, and a sealing strip is provided in the sealing groove.

[0011] By adopting the above technical solution, the sealing effect of the shell can be improved.

[0012] Optionally, the bottom of the fixing groove is a V-shaped structure, and the fixing groove includes a first contact surface and a second contact surface.

[0013] By adopting the above technical solution, the arrangement of the V-shaped structure can increase the contact area with the cable connector, making the contact with the cable connector more stable.

[0014] Optionally, the maximum distance between the clamping plate and the axis of the screw is greater than the maximum distance between the nut and the axis of the screw.

[0015] By adopting the above technical solution, after the clamping plate is clamped onto the nut, the edge of the clamping plate can be deformed and rotated again by using pliers, so that the clamping plate is clamped onto the side wall of the nut in the radial direction, thereby locking the nut and making it less likely to loosen.

[0016] Optionally, a first annular groove is provided at the main line hole, a first sealing ring is provided in the first annular groove, the first sealing ring is sleeved on the main cable, and a second annular groove is provided at the branch line hole, a second sealing ring is provided in the second annular groove, and the first sealing ring is sleeved on the branch cable.

[0017] By adopting the above technical solution and arranging the sealing ring and the annular groove, the sealing performance between the cable and the housing can be improved.

[0018] In summary, the present application includes at least one of the following beneficial technical effects:

[0019] A multi-core pre-branched cable wiring structure of the present application makes it difficult for the nut to loosen after being tightened through the cooperation of a pressure plate and a clamping plate. At the same time, glue is poured into the shell to improve the sealing while positioning the cable connector and the fixing parts, further improving the stability of the cable terminal connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a stereogram of an embodiment of the present application.

[0021] Figure 2 It is a three-dimensional diagram after removing the upper shell in the embodiment of the present application.

[0022] Figure 3 It is a three-dimensional diagram of the fixing member in the embodiment of the present application.

[0023] Figure 4 It is a three-dimensional diagram of the locking block in the embodiment of the present application.

[0024] Explanation of the accompanying drawings: 1. upper shell; 2. lower shell; 3. glue filling hole; 4. shell; 5. main line hole; 6. branch line hole; 7. main cable; 71. main cable core; 8. branch cable; 81. branch cable core; 9. fixing piece; 91. screw; 92. locking block; 921. connecting block; 922. pressure plate; 923. clamping plate; 93. nut; 94. fixing groove; 10. sealing cover; 11. sealing groove; 12. sealing strip; 13. first contact surface; 14. second contact surface; 15. first annular groove; 16. first sealing ring; 17. second annular groove; 18. second sealing ring. DETAILED DESCRIPTION

[0025] The following is combined with Figure 1-4 This application is described in further detail.

[0026] The present application embodiment discloses a multi-core pre-branched cable wiring structure. Figure 1 and Figure 2The wiring structure of the multi-core pre-branching cable 8 includes an upper shell 1 and a lower shell 2, which are fixed by fasteners, wherein the fasteners are bolts. The upper shell 1 and the lower shell 2 are assembled to form a complete shell 4, wherein a main line hole 5 is provided on the shell 4, and the main line hole 5 passes through the entire shell 4 from left to right. A branch line hole 6 connected to the inside of the shell 4 is also provided on the shell 4, a main cable 7 is passed through the main line hole 5, and a branch cable 8 is provided in the branch line hole 6. The main cable 7 includes three main cable cores 71, and the branch cable 8 also includes three branch cable cores 81. The main cable core 71 is ring-stripped to remove the outer insulation layer to expose the conductor, and the branch cable core 81 is also stripped to remove the outer insulation layer to expose the conductor, and the main cable core 71 and the branch cable core 81 are fixed to each other one by one by a fixing member 9, and the main cable core 71 and the branch cable core 81 are electrically connected.

[0027] The upper shell 1 is provided with a glue injection hole 3 for injecting sealant into the interior, and the glue injection hole 3 is communicated with the interior of the shell 4. The upper shell 1 is provided with a sealing cover 10 for sealing the glue injection hole 3, and the sealing cover 10 is fixed to the upper shell 1 by bolts. After the main cable 7 is fixed to the branch cable 8 by the fixing member 9, the upper shell 1 and the lower shell 2 can be fixed by fasteners, and then the sealant is filled into the shell 4 through the glue injection hole 3, and finally the sealing cover 10 is covered.

[0028] A sealing groove 11 is provided on one side of the lower shell 2 relative to the upper shell 1, and a sealing strip 12 is provided in the sealing groove 11. Thus, when the upper shell 1 and the lower shell 2 are assembled together by bolts, the sealing strip 12 is provided between the contact surfaces of the two, thereby improving the sealing performance between the upper shell 1 and the lower shell 2.

[0029] A first annular groove 15 is provided at the main line hole 5, a first sealing ring 16 is provided in the first annular groove 15, and the first sealing ring 16 is sleeved on the main cable 7. A second annular groove 17 is provided at the branch line hole 6, a second sealing ring 18 is provided in the second annular groove 17, and the first sealing ring 16 is sleeved on the branch cable 8.

[0030] Reference Figure 3 and Figure 4The fixing member 9 includes a screw 91, a locking block 92 and a nut 93 threadedly connected to the screw 91. A fixing groove 94 is opened at one end of the screw 91 along its axial direction. The fixing groove 94 penetrates the screw 91 relative to the radial direction of the screw 91. The bottom of the fixing groove 94 is a V-shaped structure. The fixing groove 94 includes a first contact surface 13 and a second contact surface 14. The locking block 92 is slidably arranged in the fixing groove 94. The locking block 92 includes a connecting block 921. A pressure plate 922 is provided on one side of the connecting block 921 close to the bottom of the fixing groove 94. A clamping plate 923 is provided on the other side of the connecting block 921. Two clamping plates 923 are provided, respectively, on the left and right sides of the connecting block 921. The nut 93 is located between the pressure plate 922 and the clamping plate 923. The connecting block 921 is rotatably arranged in the nut 93. The farthest distance between the clamping plate 923 and the axis of the screw 91 is greater than the farthest distance between the nut 93 and the axis of the screw 91.

[0031] The main cable core 71 is passed through the fixing groove 94, and the joint of the branch cable core 81 is also inserted into the fixing groove 94. The nut 93 is rotated to drive the locking block 92 to move together. After tightening the nut 93, the main cable core 71 and the branch cable core 81 can be stably fixed together, and the pressure plate 922 is pressed against the cable core. The setting of the pressure plate 922 can increase the contact area with the cable joint, making the contact more stable. At the same time, after tightening the nut 93, the clamping plate 923 can be clamped onto the nut 93, so that the nut 93 is clamped between the pressure plate 922 and the clamping plate 923. The clamping plate 923 extending outside the nut 93 can be bent again so that the clamping plate 923 is clamped to the side wall of the nut 93 in the radial direction, so that the nut 93 can be stuck by the clamping plate 923, so that the nut 93 is not easy to loosen during long-term use.

[0032] The screw rod 91 , the locking block 92 and the nut 93 are all made of copper.

[0033] The implementation principle of a multi-core pre-branching cable wiring structure in the embodiment of the present application is as follows: when the branch cable 8 needs to be electrically connected to the main cable 7, the main cable core 71 can be firstly stripped to remove the outer insulation layer to expose the conductor, and the branch cable core 81 can also be stripped to remove the outer insulation layer to expose the conductor, and the main cable core 71 and the branch cable core 81 are fixed to each other one by one through the fixing member 9 to achieve electrical connection. When fixing with the fixing member 9, the exposed conductor parts of the main cable core 71 and the branch cable core 81 are first placed in the fixing groove 94 of the screw rod 91, and then the nut 93 is screwed on and tightened so that the pressure plate 922 is pressed against the cable core, and the cable core on the other side is Tighten it against the bottom of the fixing groove 94, and then use pliers to clamp the clamping plate 923 to the nut 93. The clamping plate 923 extending outside the nut 93 can be bent again so that the clamping plate 923 extending outside the nut 93 is clamped to the side wall in the radial direction of the nut 93. After the fixing parts 9 are fixed one by one, the upper shell 1 and the lower shell 2 are assembled, and the main cable 7 passes through the main line holes 5 on the left and right sides respectively, and the branch cable 8 passes through the branch line hole 6. The upper shell 1 and the lower shell 2 are fixed by fasteners, and the sealant is filled into the shell 4 through the glue hole 3. Finally, the glue hole 3 is sealed by the sealing cover 10.

[0034] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A multi-core pre-branched cable wiring structure, comprising an upper shell (1) and a lower shell (2), wherein the upper shell (1) and the lower shell (2) are fixed by fasteners, and the upper shell (1) and the lower shell (2) are assembled to form a complete shell (4), wherein the shell (4) is provided with a main line hole (5), wherein the main line hole (5) passes through the shell (4), and the shell (4) is also provided with a branch line hole (6) connected to the inside of the shell (4), wherein a main cable (7) is passed through the main line hole (5), and wherein a branch cable (8) is provided in the branch line hole (6), wherein the main cable (7) and the branch cable (8) in the shell (4) are electrically connected, and wherein the main cable (7) and the branch cable (8) are fixedly connected by a fixing member (9), characterized in that: The fixing member (9) comprises a screw rod (91), a locking block (92) and a nut (93) threadedly connected to the screw rod (91); one end of the screw rod (91) is provided with a fixing groove (94) along its axial direction; the fixing groove (94) penetrates the screw rod (91) in a radial direction relative to the screw rod (91); the locking block (92) is slidably arranged in the fixing groove (94); the locking block (92) comprises a connecting block (921); a pressure plate (922) is arranged on one side of the connecting block (921) close to the bottom of the fixing groove (94); a clamping plate (923) is arranged on the other side of the connecting block (921); the nut (93) is located between the pressure plate (922) and the clamping plate (923); and the connecting block (921) is rotatably arranged in the nut (93).

2. A multi-core pre-branched cable wiring structure according to claim 1, characterized in that: The upper shell (1) is provided with a glue injection hole (3) for injecting sealant into the interior, the glue injection hole (3) is communicated with the interior of the shell (4), and the upper shell (1) is provided with a sealing cover (10) for sealing the glue injection hole (3).

3. A multi-core pre-branched cable wiring structure according to claim 1, characterized in that: A sealing groove (11) is provided on one side of the lower shell (2) relative to the upper shell (1), and a sealing strip (12) is provided in the sealing groove (11).

4. A multi-core pre-branched cable wiring structure according to claim 1, characterized in that: The bottom of the fixing groove (94) is a V-shaped structure, and the fixing groove (94) comprises a first contact surface (13) and a second contact surface (14).

5. A multi-core pre-branched cable wiring structure according to claim 1, characterized in that: The maximum distance between the clamping plate (923) and the axis of the screw rod (91) is greater than the maximum distance between the nut (93) and the axis of the screw rod (91).

6. A multi-core pre-branched cable wiring structure according to claim 1, characterized in that: The main line hole (5) is provided with a first annular groove (15), a first sealing ring (16) is arranged in the first annular groove (15), and the first sealing ring (16) is sleeved on the main cable (7); the branch line hole (6) is provided with a second annular groove (17), a second sealing ring (18) is arranged in the second annular groove (17), and the first sealing ring (16) is sleeved on the branch cable (8).

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