Flame-retardant cable joint

Abstract

The utility model discloses a kind of flame-retardant cable joints, it is related to cable connection technical field, including joint main body, one end of the joint main body is fixedly connected with first threaded tube, the other end is fixedly connected with second threaded tube, hexagon nut is threadedly connected on the first threaded tube, hexagon nut is threadedly connected on the second threaded tube, positioning ring is rotatably arranged on the joint main body, the positioning ring rotatably arranged with first positioning lug, second positioning lug;Locking tongue is fixedly arranged on the first positioning lug, second positioning lug, locking ring is fixedly arranged on the hexagon nut, hexagon nut, locking groove is formed on the locking ring, the locking tongue is engaged with the locking groove, a plurality of limiting blocks are slidably arranged in the locking groove, solve the problem that existing technology is locked by bending lug, repeatedly disassembling difficult, bending part is prone to fatigue fracture.

Description

Technical Field

[0001] This utility model relates to the field of cable connection technology, specifically a flame-retardant cable connector. Background Technology

[0002] Cable joints are crucial connecting elements in power systems. Their main function is to reliably connect two or more cable segments to form a continuous electrical path, while protecting the cable connection points from environmental influences.

[0003] Chinese utility model patent CN220306577U discloses a plastic flame-retardant cable connector: it includes a connector body, a first threaded tube at the front end and a second threaded tube at the rear end, a hexagonal nut threaded onto the first threaded tube and a hexagonal nut threaded onto the second threaded tube, both the hexagonal nut and the hexagonal nut having a locking ring protruding from the outer wall surface, a locking plate rotatably connected to the connector body in the form of a closed ring extending radially along the connector body, the locking plate having a first lug and a second lug after being bent and shaped, a first locking tongue protruding from its end face and facing the hexagonal nut on the first lug, a second locking tongue protruding from its end face and facing the hexagonal nut on the second lug, a locking hook having a locking end facing the locking plate axis on the second locking tongue and a locking groove for the locking hook to be inserted at the end of the locking ring facing away from the locking plate.

[0004] However, existing technologies still have shortcomings: The above setup uses a bent lug to lock the nut, which makes repeated disassembly difficult and the bent part is prone to fatigue and breakage. Especially in frequent maintenance scenarios, repeated bending of the lug can easily lead to metal fatigue and reduce locking reliability. Utility Model Content

[0005] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a flame-retardant cable connector to solve the problems in the prior art where locking the nut by bending the lugs is difficult due to repeated disassembly and the bending part is prone to fatigue fracture.

[0006] To achieve the above objectives, this utility model proposes a flame-retardant cable connector, comprising a connector body, one end of which is fixedly connected to a first threaded tube, and the other end of which is fixedly connected to a second threaded tube. A hexagonal nut is threaded onto the first threaded tube, and a hexagonal nut is threaded onto the second threaded tube. A positioning ring is rotatably disposed on the connector body, and the positioning ring is rotatably disposed with a first positioning lug and a second positioning lug. A locking tongue is fixedly disposed on both the first and second positioning lugs, and a locking ring is fixedly disposed on both the hexagonal nut and the hexagonal nut. A locking groove is formed on the locking ring, and the locking tongue engages with the locking groove. Several limiting blocks are slidably disposed within the locking groove.

[0007] As a further embodiment of this utility model: the hexagonal nut and hexagonal bolt are both made of plastic material mixed with flame retardant.

[0008] As a further embodiment of this utility model: both the first positioning ear and the second positioning ear are provided with three pieces.

[0009] As a further embodiment of this utility model: the first positioning ear and the second positioning ear are staggered and equidistantly arranged on the positioning ring.

[0010] As a further embodiment of this utility model: a plurality of rotating shafts are fixedly provided on the positioning ring, and the first positioning ear and the second positioning ear are rotatably disposed on the rotating shafts.

[0011] As a further embodiment of this utility model: the locking tongue on the first positioning ear faces the hexagonal nut, and the locking tongue on the second positioning ear faces the hexagonal nut.

[0012] As a further embodiment of this utility model: the limiting block includes a slider and a locking block, the slider is slidably disposed in the locking groove, and locking blocks are fixedly disposed on both sides of the slider.

[0013] As a further embodiment of this utility model: slots are provided on both sides of the locking tongue, and the locking block matches the slots.

[0014] As a further embodiment of this utility model: the first positioning ear piece and the second positioning ear piece include a positioning seat and a sliding plate, wherein the sliding plate is slidably disposed within the positioning seat.

[0015] As a further embodiment of this utility model: the positioning seat is rotatably connected to the rotating shaft, and a locking tongue is fixedly provided on the sliding plate.

[0016] Compared with the prior art, the beneficial effects of this utility model are: 1. By setting a rotating shaft, the first positioning ear and the second positioning ear are rotatably set on the rotating shaft. The rotating shaft increases the flexibility of the ear and reduces the probability of fatigue fracture when the ear is repeatedly bent. Several limiting blocks are slidably set in the lock groove. The limiting blocks include sliders and locking blocks. The slider is slidably set in the lock groove. Locking blocks are fixed on both sides of the slider. Locking slots are opened on both sides of the lock tongue. Sliding the slider can make the locking blocks lock into the locking slots, further realizing the fixed connection of hexagonal nuts and hexagonal bolts.

[0017] 2. The length of the positioning lugs is adjustable, which can accommodate wiring of various cable sizes. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the state of Embodiment 1 of the present utility model. Figure 1 ; Figure 2 This is a schematic diagram of the state of Embodiment 1 of the present utility model. Figure 2 ; Figure 3 This utility model Figure 2 Enlarged view of point A; Figure 4 This is a schematic diagram of the state of Embodiment 2 of this utility model; Figure 5 This utility model Figure 4 Enlarged view of point B.

[0019] In the diagram: 1. Connector body; 2. Positioning ring; 3. First threaded tube; 4. Second threaded tube; 5. Hexagonal nut; 6. Hexagonal nut; 7. First positioning lug; 8. Locking ring; 9. Locking groove; 10. Limiting block; 11. Rotating shaft; 12. Locking tongue; 13. Sliding block; 14. Locking block; 15. Locking groove; 16. Positioning seat; 17. Sliding plate; 18. Second positioning lug. Detailed Implementation

[0020] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] Example 1: like Figure 1-3As shown, a flame-retardant cable connector includes a connector body 1. One end of the connector body 1 is fixedly connected to a first threaded tube 3, and the other end is fixedly connected to a second threaded tube 4. A hexagonal nut 5 is threaded onto the first threaded tube 3, and a hexagonal nut 6 is threaded onto the second threaded tube 4. Both the hexagonal nut 5 and the hexagonal nut 6 are made of plastic material mixed with flame retardant. A positioning ring 2 is rotatably disposed on the connector body 1. The positioning ring 2 is rotatably disposed with a first positioning ear 7 and a second positioning ear 18. Multiple first positioning ear 7 and second positioning ear 18 are provided. In this embodiment, there are three. The first positioning ear 7 and second positioning ear 18 are staggered and equidistantly disposed on the positioning ring 2. Specifically, several rotating shafts 11 are fixedly disposed on the positioning ring 2. The first positioning ear 7 and second positioning ear 18 are rotatably disposed on the rotating shafts 11. Each of the 8 pieces is fixedly equipped with a locking tongue 12. The difference between the first positioning ear 7 and the second positioning ear 18 is that the locking tongue 12 faces different directions. The locking tongue 12 on the first positioning ear 7 faces the hexagonal nut 5, and the locking tongue 12 on the second positioning ear 18 faces the hexagonal nut 6. Both the hexagonal nut 5 and the hexagonal nut 6 are fixedly equipped with locking rings 8. The locking rings 8 have locking grooves 9. The locking tongue 12 engages with the locking grooves 9, fixing both ends of the cable in the first threaded tube 3 and the second threaded tube 4 respectively. The cable core is connected in the connector body 1. Then, the hexagonal nut 5 and the hexagonal nut 6 are rotated to tighten the cable sheath. Then, the first positioning ear 7 is rotated towards the hexagonal nut 5 until the locking tongue 12 engages in the locking groove 9, and the second positioning ear 18 is rotated towards the hexagonal nut 6 until the locking tongue 12 engages in the locking groove 9, thus realizing the fixed connection of the hexagonal nut 5 and the hexagonal nut 6 and increasing the stability of the cable connection. As one implementation method in this embodiment, in order to further increase the stability of the connection between the hexagonal nut 5 and the hexagonal nut 6, a plurality of limiting blocks 10 are slidably arranged in the locking groove 9. The limiting block 10 includes a slider 13 and a locking block 14. The slider 13 is slidably arranged in the locking groove 9, and the locking blocks 14 are fixedly arranged on both sides of the slider 13. The locking tongue 12 has locking grooves 15 on both sides. The locking blocks 14 match the locking grooves 15. Sliding the slider 13 can make the locking blocks 14 lock into the locking grooves 15, thereby further realizing the connection between the hexagonal nut 5 and the hexagonal nut 6.

[0022] Example 2: like Figure 4-5As shown, a flame-retardant cable connector differs from Embodiment 1 in that the lengths of the first positioning ear 7 and the second positioning ear 18 are adjustable to accommodate cables of various sizes. Specifically, the first positioning ear 7 and the second positioning ear 18 include a positioning seat 16 and a sliding plate 17. The sliding plate 17 is slidably disposed within the positioning seat 16, and the positioning seat 16 is rotatably connected to the rotating shaft 11. A locking tongue 12 is fixedly disposed on the sliding plate 17. After tightening the hexagonal nut 5 and the hexagonal nut 6, the sliding plate 17 is pulled until the locking tongue 12 can be embedded in the locking groove 9, thereby facilitating the limiting of the hexagonal nut 5 and the hexagonal nut 6.

[0023] Working principle: Both ends of the cable are fixedly installed in the first threaded tube 3 and the second threaded tube 4 respectively. The cable core is connected in the connector body 1. Then, the hexagonal nut 5 and hexagonal nut 6 are rotated to tighten the cable sheath. Next, the first positioning lug 7 is rotated towards the hexagonal nut 5 until the locking tongue 12 is engaged in the locking groove 9. The second positioning lug 18 is rotated towards the hexagonal nut 6 until the locking tongue 12 is engaged in the locking groove 9, thus realizing the fixed connection of the hexagonal nut 5 and hexagonal nut 6 and increasing the stability of the cable connection. As needed, the sliding plate 17 can be pulled until the locking tongue 12 can be embedded in the locking groove 9. Finally, the sliding block 13 can make the locking block 14 engage in the locking groove 15, further realizing the connection of the hexagonal nut 5 and hexagonal nut 6.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A flame-retardant cable connector, comprising a connector body (1), wherein a first threaded tube (3) is fixedly connected to one end of the connector body (1), and a second threaded tube (4) is fixedly connected to the other end; a hexagonal nut (5) is threaded onto the first threaded tube (3), and a hexagonal nut (6) is threaded onto the second threaded tube (4), characterized in that, The connector body (1) is rotatably provided with a positioning ring (2), and the positioning ring (2) is rotatably provided with a first positioning ear (7) and a second positioning ear (18); the first positioning ear (7) and the second positioning ear (18) are both fixedly provided with a locking tongue (12), the hexagonal nut (5) and the hexagonal nut (6) are both fixedly provided with a locking ring (8), the locking ring (8) is provided with a locking groove (9), the locking tongue (12) engages with the locking groove (9), and a number of limiting blocks (10) are slidably provided in the locking groove (9).

2. The flame-retardant cable connector according to claim 1, characterized in that, The hexagonal nut (5) and hexagonal bolt (6) are both made of plastic material mixed with flame retardant.

3. A flame-retardant cable connector according to claim 1, characterized in that, The first positioning ear piece (7) and the second positioning ear piece (18) are each provided with three.

4. A flame-retardant cable connector according to claim 3, characterized in that, The first positioning ear piece (7) and the second positioning ear piece (18) are staggered and equidistantly arranged on the positioning ring (2).

5. A flame-retardant cable connector according to claim 4, characterized in that, The positioning ring (2) is fixedly provided with several rotating shafts (11), and the first positioning ear (7) and the second positioning ear (18) are rotatably disposed on the rotating shafts (11).

6. A flame-retardant cable connector according to claim 1, characterized in that, The latch (12) on the first positioning lug (7) faces the hexagonal nut (5), and the latch (12) on the second positioning lug (18) faces the hexagonal nut (6).

7. A flame-retardant cable connector according to claim 1, characterized in that, The limiting block (10) includes a slider (13) and a locking block (14). The slider (13) is slidably disposed in the locking groove (9), and locking blocks (14) are fixedly disposed on both sides of the slider (13).

8. A flame-retardant cable connector according to claim 7, characterized in that, The locking tongue (12) has slots (15) on both sides, and the locking block (14) matches the slots (15).

9. A flame-retardant cable connector according to claim 5, characterized in that, The first positioning ear piece (7) and the second positioning ear piece (18) include a positioning seat (16) and a sliding plate (17), wherein the sliding plate (17) is slidably disposed within the positioning seat (16).

10. A flame-retardant cable connector according to claim 9, characterized in that, The positioning seat (16) is rotatably connected to the rotating shaft (11), and a locking tongue (12) is fixedly provided on the sliding plate (17).

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