Quick connector assembly for distribution box cable

Abstract

The invention relates to the technical field of cable quick connectors, in particular to a distribution box cable quick connector assembly. Comprising an insulating connecting pipe with threads on the outer portion, a cable connecting assembly is arranged in the middle of the insulating connecting pipe and used for being connected with a conductive core of a cable to be connected, a connecting sleeve is connected to the outer portion of the insulating connecting pipe in a threaded mode, and the insulating connecting pipe is rotationally connected with a first pressing assembly and a second pressing assembly. The connecting sleeve is used for sequentially pushing the first pressing assembly to press the cable connecting assembly and the conductive core and pushing the second pressing assembly to press the insulating part of the cable; the second pressing assembly comprises two clamping blocks which are oppositely arranged, when the connecting sleeve moves to the outside of the second pressing assembly, the two clamping blocks push the insulation part of the cable to be bent to be S-shaped, and when the cable is pulled outwards, the clamping force of the two clamping blocks is increased. The device is easy to operate and convenient and fast to use, and construction efficiency is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of cable quick connectors, in particular to a distribution box cable quick connector assembly. Background Art

[0002] The traditional cable connection method is to tighten the two ends of the cable to be connected and wrap them with insulating tape. During this process, the resistance of the cable connection is prone to overheating, which is easy to overheat during use. Additional tools are needed for operation, and the operation is more laborious.

[0003] To solve the above problems, the cable quick connector with Chinese patent publication number CN103401206B has symmetrical cable plug interfaces at both ends of the insulating rod, one end face of the cable plug interface is flush with the end face of the insulating rod, and the other end is connected by a connecting cable. The cable plug interface is a hollow metal rod, and a threaded hole for fixing the cable is provided on the cable plug interface. The side wall of the insulating rod is provided with a bolt insertion hole corresponding to the threaded hole, and at least one groove is provided behind the bolt insertion hole. The device can quickly assemble the cable and is quick and convenient to operate.

[0004] However, when this application is used in practice, it is still necessary to use fastening bolts to fasten the cable and the cable plug interface, and it is necessary to put a rubber protective cover on the end of the cable to be connected. After the connection is completed, the rubber protective cover and the cable need to be fixed, and the operation is still relatively cumbersome.

[0005] Therefore, the present application provides a distribution box cable quick connector assembly to solve the problem of inconvenient cable quick connection operation in the prior art and improve the efficiency of cable quick connection. Summary of the invention

[0006] In order to solve the above problems, the present invention provides a cable quick connector assembly for a distribution box.

[0007] The technical solution adopted by the present invention to solve the technical problem is: a distribution box cable quick connector assembly, comprising an insulating connecting tube with threads on the outside, a cable connecting assembly is arranged in the middle of the insulating connecting tube, which is used to connect with the conductive core of the cable to be connected, a connecting sleeve is connected to the external threads of the insulating connecting tube, and the insulating connecting tube is rotatably connected with a first pressing assembly and a second pressing assembly, and the connecting sleeve is used to push the first pressing assembly to press the cable connecting assembly and the conductive core, and push the second pressing assembly to press the insulating part of the cable in turn; The second clamping assembly includes two clamping blocks arranged opposite to each other. When the connecting sleeve moves to the outside of the second clamping assembly, the two clamping blocks push the insulating part of the cable to bend into an S shape. When the cable is pulled outward, the clamping force of the two clamping blocks increases.

[0008] As an optimization, the cable connection assembly, the insulating connecting tube and the connecting sleeve are coaxially arranged, and a positioning piece is threadedly connected to the middle part of the insulating connecting tube. When in use, the positioning piece is fitted into the distribution box, and the two ends of the insulating connecting tube are respectively located on the outside and the inside of the distribution box casing.

[0009] As an optimization, the cable connection assembly includes a transmission rod and a connection part connected to both ends of the transmission rod, the connection part includes a plurality of connection springs, the middle part of the connection springs is bent toward the axis of the insulating connection tube, and the outer end of the connection springs extends toward the inner wall direction of the insulating connection tube; The first pressing assembly is used to push the connecting spring piece to move toward the axis of the insulating connecting tube. When the first pressing assembly pushes the connecting spring piece to move, the middle part of the connecting spring piece is in contact with and squeezed against the conductive core.

[0010] As an optimization, the insulating connecting tube is provided with a first connecting hole, and the first clamping assembly includes a clamping block, the middle limiter of the clamping block is movably arranged in the first connecting hole, the tip of the clamping block is in contact with the cable connecting assembly, and when the connecting sleeve moves to the outside of the clamping block, the clamping block moves along the axis of the first connecting hole toward the direction of the cable assembly.

[0011] As an optimization, the insulating connecting tube is provided with a second connecting hole, the second clamping assembly is movably arranged in the second connecting hole, a limiting seat is arranged on the inner side of the insulating connecting tube, a reset spring is arranged inside the limiting seat, and a connecting ear is arranged outside the second clamping assembly, the connecting ear is slidably arranged inside the limiting seat and is connected to the reset spring.

[0012] As an optimization, the outer edge of the clamping block is provided with a chamfer to facilitate the rotation and movement of the connecting sleeve to the outer side of the second clamping assembly; A guide rod is arranged inside the insulating connecting tube, a guide groove is opened inside the clamping block, the guide rod is slidably arranged inside the guide groove, and the length direction of the guide groove is perpendicular to the axis of the insulating connecting tube.

[0013] As an optimization, the side of the clamping block opposite to the axis of the insulating connecting tube is S-shaped, and the two clamping blocks can be relatively engaged; The two clamping blocks are respectively a first clamping block and a second clamping block. A first recess and a first protrusion are provided on the side of the first clamping block opposite to the axis of the insulating connecting tube, and a second protrusion and a second recess are correspondingly provided on the side of the second clamping block opposite to the axis of the insulating connecting tube. The first recess and the second protrusion are located at one end of the clamping block close to the cable connecting assembly. The first recess is a circular arc depression with uniform curvature, and the curvature of the middle part of the second protrusion gradually increases toward the direction of the cable connecting assembly.

[0014] The scheme provides a distribution box cable quick connector assembly, which has the following benefits: The cable quick connector assembly of the present application has a simple structure, and the cable is quickly connected through the insulating connecting tube, and the conductive part is connected through the first clamping assembly, and the insulating part of the cable is held by the second clamping assembly, so as to avoid overheating or breakage of the wire caused by excessive local force, and when the cable is subjected to outward pulling force, the clamping force of the second clamping assembly will increase, which can effectively prevent the cable connection line from being disengaged and ensure the connection effect; A connecting sleeve is arranged on the outside of the insulating connecting pipe, and the cable can be efficiently connected by rotating the connecting sleeve. The operation is simple, the use is convenient and quick, and the construction efficiency is effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an axial schematic diagram of the present invention.

[0016] Figure 2 It is a main schematic diagram of the present invention.

[0017] Figure 3 For the present invention Figure 2 Schematic diagram of the AA section structure.

[0018] Figure 4 It is a schematic diagram of the position structure of the first clamping assembly and the second clamping assembly of the present invention.

[0019] Figure 5 It is a schematic diagram of the use state of the present invention.

[0020] Among them, 1. insulating connecting tube, 2. conductive core, 3. connecting sleeve, 4. insulating part, 5. positioning sheet, 6. distribution box shell, 7. transmission rod, 8. connecting spring, 9. first connecting hole, 10. clamping block, 11. limit seat, 12. reset spring, 13. guide rod, 14. guide groove, 15. first clamping block, 16. second clamping block, 17. first recess, 18. first protrusion, 19. second protrusion, 20. second recess. DETAILED DESCRIPTION

[0021] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the invention is usually placed when in use. 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 position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0022] like Figure 1-Figure 5 As shown, a distribution box cable quick connector assembly includes an insulating connecting tube 1 with threads on the outside, a cable connecting assembly is arranged in the middle of the insulating connecting tube 1 for connecting with a conductive core 2 of a cable to be connected, a connecting sleeve 3 is connected to the external threads of the insulating connecting tube 1, a first pressing assembly and a second pressing assembly are rotatably connected to the insulating connecting tube 1, and the connecting sleeve 3 is used to push the first pressing assembly to press the cable connecting assembly and the conductive core 2, and push the second pressing assembly to press the insulating portion 4 of the cable in sequence; The second clamping assembly includes two clamping blocks arranged opposite to each other. When the connecting sleeve 3 moves to the outside of the second clamping assembly, the two clamping blocks push the insulating part 4 of the cable to bend into an S shape. When the cable is pulled outward, the clamping force of the two clamping blocks increases.

[0023] The width of the first clamping assembly is smaller than that of the second clamping assembly. The first clamping assembly is pointed toward the cable connection assembly. When the first clamping assembly is pushed inward, the cable connection assembly can be clamped. The second clamping assembly is used to connect the insulating part 4 to increase the contact area with the cable. The width of the clamping block is not less than the diameter of the cable to ensure the connection effect of the cable.

[0024] like Figure 5 As shown, the cable connection assembly, the insulating connecting tube 1 and the connecting sleeve 3 are coaxially arranged, and a positioning piece 5 is threadedly connected to the middle part of the insulating connecting tube 1. When in use, the positioning piece 5 is set in contact with the distribution box, and the two ends of the insulating connecting tube 1 are respectively located on the outside and the inside of the distribution box shell 6.

[0025] Two positioning pieces 5 are respectively arranged on the left and right sides of the distribution box housing 6 to connect and fix the position of the insulating connecting pipe 1. The connecting sleeve 3 can rotate along the length direction of the insulating connecting pipe 1. In order to ensure the connection and sealing effect, the inner wall of the connecting sleeve 3 and the outer layer of the insulating connecting pipe 1 can be made of elastic material. When the connecting sleeve 3 is threadedly connected to the insulating connecting pipe 1, sealing can be achieved to prevent external rainwater from entering the inside of the insulating connecting pipe 1 through the connecting sleeve 3.

[0026] like Figure 3 and Figure 4 As shown, the cable connection assembly includes a transmission rod 7 and a connection portion connected to both ends of the transmission rod 7, the connection portion includes a plurality of connection springs 8, the middle portion of the connection springs 8 is bent toward the axis of the insulating connection tube 1, and the outer end of the connection spring 8 extends toward the inner wall direction of the insulating connection tube 1; The first pressing assembly is used to push the connecting spring piece 8 to move toward the axis of the insulating connecting tube 1. When the first pressing assembly pushes the connecting spring piece 8 to move, the middle part of the connecting spring piece 8 is in contact with and squeezed against the conductive core 2.

[0027] The middle part of the connecting spring piece 8 is bent toward the axial direction of the insulating connecting tube 1 to form a connecting bend, and when not connected, the connecting bend can be in contact with or not in contact with the conductive core 2. When the cable is connected to the insulating connecting tube 1, the first clamping assembly clamps the connecting spring piece 8, and the connecting bend is in a clamped state with the conductive core 2 of the cable.

[0028] like Figure 3 As shown, the insulating connecting tube 1 is provided with a first connecting hole 9, and the first clamping assembly includes a clamping block 10. The middle limiter of the clamping block 10 is movably arranged in the first connecting hole 9, and the tip of the clamping block 10 is in contact with the cable connecting assembly. When the connecting sleeve 3 moves to the outside of the clamping block 10, the clamping block 10 moves along the axis of the first connecting hole 9 toward the direction of the cable assembly.

[0029] The middle part of the clamping block 10 protrudes outward to form a limiting ring, which is movably arranged in the first connecting hole 9 to prevent the clamping block 10 from escaping from the first connecting hole 9; the corresponding end opening of the first connecting hole 9 should be smaller than the internal diameter of the first connecting hole 9 to limit the clamping block 10.

[0030] like Figure 3 As shown, the insulating connecting tube 1 is provided with a second connecting hole, the second clamping assembly is movably arranged in the second connecting hole, a limiting seat 11 is arranged on the inner side of the insulating connecting tube 1, a reset spring 12 is arranged inside the limiting seat 11, and a connecting ear is arranged outside the second clamping assembly, the connecting ear is slidably arranged inside the limiting seat 11, and is connected to the reset spring 12.

[0031] The movable range of the second clamping assembly is the internal length of the limit seat 11. The second clamping assembly can maintain an outward pop-up state under the action of the reset spring 12. When the cable needs to be clamped, the second clamping assembly can be squeezed inward through the connecting sleeve 3.

[0032] like Figure 4 As shown, the outer edge of the clamping block is provided with a chamfer to facilitate the connection sleeve 3 to rotate and move to the outside of the second clamping assembly; A guide rod 13 is provided inside the insulating connecting tube 1 , a guide groove 14 is provided inside the clamping block, the guide rod 13 is slidably arranged inside the guide groove 14 , and the length direction of the guide groove 14 is perpendicular to the axis of the insulating connecting tube 1 .

[0033] according to Figure 4In the direction shown, when the connecting sleeve 3 is pushed upward from the bottom to the lower part of the clamping block, the clamping block rotates inwardly with the position of the guide rod 13 as the axis, so that the insulating part 4 of the cable is squeezed to form a C-bend. When the connecting sleeve 3 continues to be moved, the clamping block moves inwardly along the guide rod 13, and the cable is squeezed and held by the clamping block, so that the cable is S-shaped.

[0034] like Figure 4 As shown, the side of the clamping block opposite to the axis of the insulating connecting tube 1 is S-shaped, and the two clamping blocks can be relatively engaged; The two clamping blocks are respectively a first clamping block 15 and a second clamping block 16. The first clamping block 15 is provided with a first recess 17 and a first protrusion 18 on the side opposite to the axis of the insulating connecting tube 1. The second clamping block 16 is provided with a second protrusion 19 and a second recess 20 on the side opposite to the axis of the insulating connecting tube 1. The first recess 17 and the second protrusion 19 are located at one end of the clamping block close to the cable connection assembly. The first recess 17 is a circular arc depression with uniform curvature, and the curvature of the middle part of the second protrusion 19 gradually increases toward the direction of the cable connection assembly.

[0035] according to Figure 4 In the direction shown, the curvature of the middle and upper part of the second protrusion 19 is the same as the curvature of the first recess 17, and the outermost end of the second protrusion 19 can fit tightly inside the first recess 17, so that the upper part of the second protrusion 19 can fit and connect with the first recess 17, and the curvature of the lower part of the second protrusion 19 gradually increases. When the cable is pulled outward, the cable pulls the clamping block to rotate around the position of the guide rod 13 toward the outer end of the cable, so that the second protrusion 19 is stuck in the first recess 17 and gradually clamped to prevent the cable from falling out.

[0036] Directions: When the device is used, the insulating connecting tube 1 is inserted into the assembly hole of the distribution box housing 6, and the connection between the insulating connecting tube 1 and the distribution box housing 6 is positioned by the positioning piece 5. The positioning piece 5 is threadedly connected with the insulating connecting tube 1 to prevent the insulating connecting tube 1 from shaking and displacement. The connecting sleeve 3 is rotated to the middle of the insulating connecting tube 1, the pressing block 10 and the clamping block are exposed to the outside, the end of the cable is ring-stripped to expose the conductive core 2 at the end of the cable, and the cable is inserted into the axis of the insulating connecting tube 1, so that the conductive core 2 is inserted between the multiple connecting springs 8 and contacts the connecting springs 8; The connecting sleeve 3 is rotated to make the connecting sleeve 3 press the pressing block 10 inwards, and the pressing block 10 pushes the connecting spring piece 8 inwards to make the connecting spring piece 8 and the conductive core 2 squeeze tightly; The connecting sleeve 3 is continuously rotated to squeeze the end of the clamping block, so that the end of the clamping block rotates inward, and the first clamping block 15 and the second clamping block 16 squeeze the insulating portion 4 of the cable tightly. The connecting sleeve 3 is continuously rotated to hold the cable through the first clamping block 15 and the second clamping block 16, so that the cable is in an S-shaped structure. Just connect the two cables to be connected to the two ends of the insulating connecting tube 1. To ensure the sealing effect of the insulating connecting tube 1, the ends of the insulating connecting tube 1 can also be provided with sealing end caps or sealing putty to prevent water from entering the ends of the insulating connecting tube 1. The setting of the sealing end caps or sealing putty is a detachable connection and does not affect the disassembly of the cable.

[0037] When the staff makes an error in operation or the cable is pulled externally, the cable pulls the first clamping block 15 and the second clamping block 16 to rotate, so that the end of the clamping block adjacent to the middle of the insulating connecting tube 1 rotates inward and toward the outer end of the insulating connecting tube 1, so that the second protrusion 19 is clamped into the first recess 17. Since the curvature of the outer end of the second protrusion 19 gradually increases, the clamping force of the two is further increased, preventing the cable from detaching from between the two clamping blocks.

[0038] The above-mentioned specific embodiments are only specific cases of the present invention. The patent protection scope of the present invention includes but is not limited to the product form and style of the above-mentioned specific embodiments. Any distribution box cable quick connector assembly that complies with the claims of the present invention and any appropriate changes or modifications made to it by ordinary technicians in the corresponding technical field shall fall within the patent protection scope of the present invention.

Claims

1. A distribution box cable quick connector assembly, characterized in that: The invention comprises an insulating connecting tube (1) with threads on the outside, a cable connecting assembly is arranged in the middle of the insulating connecting tube (1) for connecting with the conductive core (2) of the cable to be connected, a connecting sleeve (3) is connected to the external threads of the insulating connecting tube (1), a first pressing assembly and a second pressing assembly are rotatably connected to the insulating connecting tube (1), and the connecting sleeve (3) is used to push the first pressing assembly to press the cable connecting assembly and the conductive core (2), and push the second pressing assembly to press the insulating part (4) of the cable in turn; The second clamping assembly comprises two clamping blocks arranged opposite to each other. When the connecting sleeve (3) moves to the outside of the second clamping assembly, the two clamping blocks push the insulating portion (4) of the cable to bend into an S shape. When the cable is pulled outward, the clamping force of the two clamping blocks increases.

2. A distribution box cable quick connector assembly according to claim 1, characterized in that: The cable connection assembly, the insulating connection tube (1) and the connection sleeve (3) are coaxially arranged, and a positioning piece (5) is threadedly connected to the middle of the insulating connection tube (1). When in use, the positioning piece (5) is arranged in contact with the distribution box, and the two ends of the insulating connection tube (1) are respectively located on the outside and the inside of the distribution box shell (6).

3. A distribution box cable quick connector assembly according to claim 1, characterized in that: The cable connection assembly comprises a transmission rod (7) and a connection portion connected to both ends of the transmission rod (7), the connection portion comprising a plurality of connection springs (8), the middle portion of the connection springs (8) being bent toward the axis of the insulating connection tube (1), and the outer ends of the connection springs (8) extending toward the inner wall of the insulating connection tube (1); The first clamping assembly is used to push the connecting spring (8) to move toward the axis of the insulating connecting tube (1); when the first clamping assembly pushes the connecting spring (8) to move, the middle of the connecting spring (8) contacts and squeezes the conductive core (2).

4. A distribution box cable quick connector assembly according to claim 1, characterized in that: The insulating connecting tube (1) is provided with a first connecting hole (9), and the first clamping assembly includes a clamping block (10). The middle limiter of the clamping block (10) is movably arranged in the first connecting hole (9), and the tip of the clamping block (10) contacts the cable connecting assembly. When the connecting sleeve (3) moves to the outside of the clamping block (10), the clamping block (10) moves along the axis of the first connecting hole (9) toward the direction of the cable assembly.

5. A distribution box cable quick connector assembly according to claim 1, characterized in that: The insulating connecting tube (1) is provided with a second connecting hole, the second clamping assembly is movably arranged in the second connecting hole, a limiting seat (11) is arranged on the inner side of the insulating connecting tube (1), a return spring (12) is arranged inside the limiting seat (11), and a connecting ear is arranged outside the second clamping assembly, the connecting ear is slidably arranged inside the limiting seat (11) and is connected to the return spring (12).

6. A distribution box cable quick connector assembly according to claim 1, characterized in that: The outer edge of the clamping block is provided with a chamfer to facilitate the rotation and movement of the connecting sleeve (3) to the outer side of the second clamping assembly; A guide rod (13) is arranged on the inner side of the insulating connecting tube (1), a guide groove (14) is provided inside the clamping block, the guide rod (13) is slidably arranged inside the guide groove (14), and the length direction of the guide groove (14) is perpendicular to the axis of the insulating connecting tube (1).

7. A distribution box cable quick connector assembly according to claim 6, characterized in that: The side of the clamping block opposite to the axis of the insulating connecting tube (1) is S-shaped, and the two clamping blocks can be relatively engaged; The two clamping blocks are respectively a first clamping block (15) and a second clamping block (16); a first recess (17) and a first protrusion (18) are provided on the side of the first clamping block (15) opposite to the axis of the insulating connecting tube (1); a second protrusion (19) and a second recess (20) are correspondingly provided on the side of the second clamping block (16) opposite to the axis of the insulating connecting tube (1); the first recess (17) and the second protrusion (19) are located at one end of the clamping block close to the cable connecting assembly; the first recess (17) is a circular arc depression with uniform curvature; and the curvature of the middle part of the second protrusion (19) gradually increases toward the direction of the cable connecting assembly.

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