A snap-on cable joint

Abstract

The utility model relates to cable connection technical field, specifically disclose buckle type cable joint, including the cable for butt joint, the end of two cable mutual approach is provided with butt joint, the inside of butt joint and the end part of cable are adapted, and the connecting ring is provided with between two butt joint, the connecting ring is used for fixing two butt joint, butt joint includes the thread cylinder, one end of thread cylinder is provided with round platform fastener, the middle part of round platform fastener is provided with the thimble, the thimble and the end part of cable are adapted, are used for keeping the need of cable end fixed, the utility model discloses through the connecting ring rotation extrusion round platform fastener, makes the thimble close, lets cable joint and thimble close and touch, effectively resist stretching, bending and vibration and other external force, reduce the risk of joint fracture or loosening.

Description

Technical Field

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

[0002] The most basic function of a cable joint is to reliably connect the conductors of two cable segments together, allowing current to flow smoothly and ensuring continuous power or signal transmission. For example, in urban power grid supply lines, due to the limited cable length, cable joints are needed to connect multiple cable segments to achieve long-distance power transmission.

[0003] Traditional cable joints rely on relatively weak mechanical connections. Under external forces such as tension, bending, and vibration, the joint is prone to breakage or loosening. Furthermore, poor sealing is a common problem with traditional cable joints. External moisture, dust, and corrosive gases can easily enter the joint, damaging the insulation and conductor. In humid or corrosive environments, poor sealing significantly shortens the joint's lifespan. Therefore, this application provides a snap-fit ​​cable joint. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a snap-fit ​​cable connector, which solves the problems of weak mechanical connection methods, easy breakage or loosening of the connector, and poor sealing that can easily damage insulation materials and conductors, thus significantly shortening the service life of the connector.

[0005] The present invention relates to a snap-fit ​​cable connector, comprising cables for mating, wherein a mating connector is provided at one end of two cables that are close to each other, the inner side of the mating connector is adapted to the end of the cable, and a connecting ring is provided between the two mating connectors for fixing the two mating connectors. The mating joint includes a threaded cylinder, one end of which is provided with a frustum fastener, and the middle of the frustum fastener is provided with a collar, which is adapted to the end of the cable to maintain the cable end in place. The outer side of the frustum fastener is inclined at a preset angle and engages with the outer side of the collar. The outer side of the frustum fastener abuts against the inner side of the connecting ring. When the connecting ring rotates in a direction close to the threaded cylinder, it squeezes the outer side of the frustum fastener, forcing the cable connector to abut tightly against the collar.

[0006] As a further improvement of this utility model, a connecting nut is provided in the middle of the threaded cylinder, and the connecting nut divides the connecting cylinder into two areas.

[0007] As a further improvement of this utility model, the two regions of the threaded cylinder are provided with two sets of threaded grooves of different lengths with the connecting nut as the dividing line. One of the threaded grooves is adapted to the connecting ring, and the other threaded groove is connected to the threaded ring.

[0008] As a further improvement of this utility model, a washer is provided at the bottom of the threaded cylinder near one of the threaded grooves, and the washer is adapted to the threaded ring.

[0009] As a further improvement of this utility model, the inner side of the connecting cylinder is provided with a pressing area, which is connected to the cable. The threaded ring and the washer are used to press one of the areas, so that the inner side of one of the areas presses and fixes the cable.

[0010] As a further improvement of this utility model, a snap-fit ​​card is provided on one side of the collar, and the snap-fit ​​card is adapted to the snap-fit ​​area opened on the inner side of the collar.

[0011] As a further improvement of this utility model, the collar includes a ring body, and a through-hole area is provided in the middle of the inner side of the ring body for fixing the cable joint.

[0012] As a further improvement of this utility model, an insulating layer is provided on the inner side of the through-hole area, and the insulating layer is in contact with and adapted to the outer side of the cable.

[0013] As a further improvement of this utility model, a groove is provided between the ring body and the through area, and one or more spring retaining beads are provided on one side of the inner wall of the groove, the spring retaining beads being adapted to the outer side of the card.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model uses the rotating and pressing of the connecting ring to compress the frustum fastener, thereby tightening the collar and ensuring that the cable joint is in close contact with the collar. This effectively resists external forces such as tension, bending, and vibration, reducing the risk of joint breakage or loosening. The insertion card of the collar mates with the snap-fit ​​area, and the spring-loaded ball holds the card in place, ensuring the stability of the collar structure itself, thereby improving the reliability of the cable joint connection. Furthermore, the connecting ring squeezes the frustum fastener to make the collar tightly fit with the cable end, forming a good initial seal to prevent external moisture, dust and corrosive gases from entering. The threaded ring presses the washer, and the washer deforms to fill the gap, further preventing external substances from entering the joint and protecting the insulation material and conductor. Meanwhile, the insulation layer inside the loop connection area is in close contact with the outside of the cable, which can effectively prevent leakage at the cable joint, ensure the safety of power transmission, and also buffer the vibration and impact during cable operation. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the combined structure of the cable and the connecting joint of this utility model; Figure 2 This is a schematic diagram of the exploded structure of the butt joint of this utility model; Figure 3 This is a schematic diagram of the combined structure of the butt joint and connecting ring of this utility model; Figure 4 This is a top view of the butt joint structure of this utility model; Figure 5 This is a top view of the collar structure of this utility model.

[0016] In the diagram: 1. Cable; 2. Connecting ring; 3. Connecting joint; 31. Threaded groove; 32. Insert clip; 33. Clamping area; 34. Threaded ring; 35. Washer; 36. Threaded cylinder; 37. Connecting nut; 38. Collar; 39. Frustum fastener; 381. Ring body; 382. Through-hole area; 383. Insulation layer; 384. Spring retainer. Detailed Implementation

[0017] The following illustrations will reveal several embodiments of the present invention. For clarity, many physical details will be described in the following description. However, it should be understood that these physical details should not be used to limit the present invention. That is, in some embodiments of the present invention, these physical details are not essential. Furthermore, for the sake of simplicity, some conventional structures and components will be shown in the illustrations in a simple schematic manner.

[0018] Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0019] Please see Figure 1 , Figure 2 , Figure 3 as well as Figure 4 Traditional cable connectors play a fundamental role in power and signal transmission by reliably connecting two cable conductors and ensuring smooth current flow for long-distance power transmission. However, they have significant drawbacks: for example, the mechanical connection is weak, and the connector is prone to breakage or loosening when subjected to external forces such as tension, bending, and vibration.

[0020] Poor sealing is a common problem, allowing external moisture, dust, corrosive gases, and other contaminants to easily enter the joint, damaging the insulation material and conductor. This can significantly shorten the joint's lifespan, especially in humid or corrosive environments.

[0021] Based on this, this application proposes a snap-fit ​​cable connector 1, including cables 1 for docking, and a docking connector 3 is provided at one end of the two cables 1 that are close to each other. The inner side of the docking connector 3 is adapted to the end of the cable 1. A connecting ring 2 is provided between the two docking connectors 3 for fixing the two docking connectors 3. The mating joint 3 includes a threaded cylinder 36, one end of which is provided with a frustum fastener 39, and the middle of the frustum fastener 39 is provided with a collar 38, which is adapted to the end of the cable 1 to maintain the end of the cable 1. The outer side of the frustum fastener 39 is set at a preset angle and is engaged with the outer side of the collar 38. The outer side of the frustum fastener 39 abuts against the inner side of the connecting ring 2. When the connecting ring 2 rotates in a direction close to the threaded cylinder 36, it squeezes the outer side of the frustum fastener 39, forcing the cable 1 connector to abut tightly against the collar 38.

[0022] The snap-fit ​​cable connector 1 is used to connect two cables 1. The two cables 1 are equipped with a connector 3 at their closest ends. The two connectors 3 are connected and fixed by a connecting ring 2, thereby achieving a reliable connection between the two cables 1.

[0023] The threaded cylinder 36 is part of the mating joint 3, located at the end of the mating joint 3 closest to the main body of the cable 1. The outer surface of the threaded cylinder 36 is machined with threads, which are used to mate with the connecting ring 2. The relative movement and fixation between the connecting ring 2 and the mating joint 3 are achieved by rotating the threads.

[0024] The frustum fastener 39 is located at one end of the threaded cylinder 36, and a collar 38 is installed in the middle of it. The frustum fastener 39 is in the shape of a frustum. The inner diameter of the collar 38 is matched with the outer diameter of the end of the cable 1. When the end of the cable 1 is inserted into the collar 38, the collar 38 can tightly wrap around the end of the cable 1, which plays a role in initially fixing the end of the cable 1 and preventing the cable 1 from shaking or shifting during the connection process.

[0025] The outer side of the frustum fastener 39 is an outer ring inclined at a preset angle. This inclined outer ring engages with the outer side of the collar 38, ensuring that the frustum fastener 39 and the collar 38 form a single integrated structure. At the same time, the outer side of the frustum fastener 39 abuts against the inner side of the connecting ring 2.

[0026] The connecting ring 2 is a cylindrical component with internal threads that match the external threads of the threaded cylinder 36. When the connecting ring 2 rotates toward the threaded cylinder 36, it moves toward the threaded cylinder 36 along the threads. Since the inner side of the connecting ring 2 abuts against the outer side of the frustum fastener 39, the connecting ring 2 will squeeze the outer side of the frustum fastener 39 as it moves toward the threaded cylinder 36.

[0027] Clean the ends of the two cables 1 that need to be connected, removing dirt, oxide layers and other impurities from the surface to ensure that the conductors at the ends of the cables 1 can conduct electricity well. At the same time, according to the size of the connector 3, appropriately peel off the insulation layer 383 at the ends of the cables 1 to expose a certain length of conductor.

[0028] Place the collar 38 of the mating connector 3 onto the end of the cable 1, ensuring that the end of the cable 1 is accurately inserted into the collar 38, so that the collar 38 tightly wraps around the end of the cable 1. At this time, the frustum fastener 39 is also installed at the appropriate position on the end of the cable 1 along with the collar 38.

[0029] Bring the ends of the two cables 1 with the two mating connectors 3 installed close together, so that the frustum fasteners 39 of the two mating connectors 3 are facing each other. Then, put the connecting ring 2 onto the threaded cylinder 36 of one of the mating connectors 3 and start rotating the connecting ring 2 so that it moves along the threaded cylinder 36 toward the other mating connector 3.

[0030] As the connecting ring 2 rotates and moves, the inner side of the connecting ring 2 will gradually exert a squeezing effect on the outer side of the frustum fastener 39. Since the outer side of the frustum fastener 39 is inclined, when squeezed, the frustum fastener 39 will generate a force that contracts towards the center. This force will be transmitted to the collar 38, forcing the collar 38 to tighten further, thereby making the cable 1 connector and the collar 38 contact more tightly, and realizing a reliable connection between the two cables 1.

[0031] By squeezing the frustum fastener 39 through the connecting ring 2, the collar 38 is tightly connected to the end of the cable 1. This connection method can effectively resist the influence of external forces such as tension, bending and vibration, greatly improve the mechanical strength of the cable 1 joint, and reduce the risk of joint breakage or loosening.

[0032] During the process of the connecting ring 2 pressing the frustum fastener 39, the tight fit between the collar 38 and the end of the cable 1 can form a good sealing effect, effectively preventing external moisture, dust and corrosive gases from entering the joint, protecting the insulation material and conductor from damage, and extending the service life of the cable 1 joint.

[0033] Please see Figure 1 , Figure 2 , Figure 3A connecting nut 37 is provided in the middle of the threaded cylinder 36, which divides the connecting cylinder into two areas.

[0034] The threaded cylinder 36 has two sets of threaded grooves 31 of different lengths, with the connecting nut 37 as the dividing line. One threaded groove 31 is adapted to the connecting ring 2, and the other threaded groove 31 is connected to the threaded ring 34.

[0035] A washer 35 is provided at the bottom of the threaded cylinder 36 near one of the threaded grooves 31, and the washer 35 is adapted to the threaded ring 34.

[0036] A connecting nut 37 is installed in the middle of the threaded cylinder 36, dividing the threaded cylinder 36 into two different areas. The connecting nut 37 can be fixed to the middle position of the threaded cylinder 36 by welding, threaded connection, or other methods to ensure its positional stability.

[0037] With the connecting nut 37 as the dividing line, a set of threaded grooves 31 are provided in one area of ​​the threaded cylinder 36, which can achieve a good fit with the connecting ring 2; When the connecting ring 2 is fitted onto the threaded groove 31 and rotates, the connecting ring 2 can move smoothly along the threaded groove 31, thereby compressing the frustum fastener 39 and completing the connection of the cable 1 connector.

[0038] Another set of threaded grooves 31 is provided in another area of ​​the threaded cylinder 36 for connecting the threaded ring 34. The threaded ring 34 can be rotatably mounted on the threaded groove 31 and can move on the threaded groove 31.

[0039] At the bottom of the threaded cylinder 36, near the threaded groove 31 that connects to the threaded ring 34, a washer 35 is installed. The inner diameter of the washer 35 matches the outer diameter of the threaded cylinder 36, while its outer diameter is slightly larger than that of the threaded ring 34. The washer 35 can be made of materials with certain elasticity and sealing properties, such as rubber or silicone. Its function is to cooperate with the threaded ring 34 to achieve a better sealing and fixing effect.

[0040] When installing the cable 1 connector, first put the connecting ring 2 on the threaded groove 31 that is compatible with the connecting ring 2, and then rotate the connecting ring 2 as described above so that it moves along the threaded groove 31 toward the frustum fastener 39. By pressing the frustum fastener 39 with the connecting ring 2, the initial connection and fixation of the cable 1 is achieved.

[0041] After the connecting ring 2 is installed, install the threaded ring 34 onto another threaded groove 31. Rotate the threaded ring 34 so that it moves along the threaded groove 31 toward the washer 35. As the threaded ring 34 continues to rotate, it will gradually press against the washer 35.

[0042] When the threaded ring 34 presses against the washer 35, the washer 35 deforms to fill the gap between the threaded cylinder 36 and the threaded ring 34, thus providing a good seal and preventing external moisture, dust, and corrosive gases from entering the joint. Simultaneously, the tightening effect of the threaded ring 34 further enhances the stability and mechanical strength of the entire cable 1 joint, enabling it to better resist external forces and reducing the risk of loosening and breakage.

[0043] By cooperating with the threaded ring 34 and the washer 35, the cable 1 joint is further reinforced on the basis of the initial connection achieved by the connecting ring 2. This makes the cable 1 joint more stable in maintaining the connection state when subjected to external forces such as tension, bending and vibration, which greatly improves the mechanical reliability of the cable 1 joint.

[0044] The sealing effect of gasket 35 effectively prevents the intrusion of external substances, providing better protection for the conductor and insulation materials inside the cable 1 joint, reducing the probability of failure caused by factors such as moisture and corrosion, and extending the service life of the cable 1 joint.

[0045] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 as well as Figure 5 The inner side of the connecting cylinder is provided with a pressing area 33, which is connected to the cable 1. The threaded ring 34 and the washer 35 are used to press one of the areas, so that the inner side of one of the areas presses and fixes the cable 1.

[0046] A snap-fit ​​card 32 is provided on one side of the collar 38, and the snap-fit ​​card 32 is adapted to the snap-fit ​​area opened on the inner side of the collar 38.

[0047] The collar 38 includes a ring body 381, and a through-hole area 382 is provided in the middle of the inner side of the ring body 381 for fixing the cable 1 connector.

[0048] An insulating layer 383 is provided on the inner side of the splice area 382, ​​and the insulating layer 383 is in contact with and adapted to the outer side of the cable 1.

[0049] A groove is provided between the ring body 381 and the through area 382, ​​and one or more spring beads 384 are provided on one side of the inner wall of the groove. The spring beads 384 are adapted to the outer side of the card.

[0050] The inner side of the connecting cylinder is provided with a clamping area 33. When the cable 1 passes through the clamping area 33 of the connecting cylinder, the threaded ring 34 and the washer 35 compress one area of ​​the connecting cylinder. Due to the elasticity of the connecting cylinder, the inner side of this area will deform after being compressed, thereby compressing the cable 1 passing through it and firmly fixing the cable 1 inside the connecting cylinder. This fixing method can effectively prevent the cable 1 from shaking or shifting during use, ensuring the stability of the cable 1 connection.

[0051] A snap-fit ​​card 32 is provided on one side of the collar 38, while a snap-fit ​​area is provided on the inner side of the collar 38. The shape and size of the snap-fit ​​card 32 are adapted to the snap-fit ​​area. When installing the collar 38, the snap-fit ​​card 32 is aligned with the snap-fit ​​area and inserted. Through the cooperation of the two, the initial connection and positioning between the various parts of the collar 38 can be achieved, ensuring the integrity of the collar 38 structure.

[0052] The collar 38 is composed of a ring body 381. A through-hole area 382 is provided in the middle of the inner side of the ring body 381. The inner diameter of the through-hole area 382 is adapted to the outer diameter of the cable 1 connector. When the cable 1 connector is inserted into the through-hole area 382, ​​the through-hole area 382 can wrap the cable 1 connector and play the role of fixing the cable 1 connector.

[0053] An insulation layer 383 is provided on the inner side of the splice area 382. The insulation layer 383 is usually made of materials such as rubber or plastic with good insulation properties. The insulation layer 383 is in close contact with the outer side of the cable 1, and its function is to prevent leakage at the cable 1 splice and ensure the safety of power transmission. At the same time, the insulation layer 383 also plays a certain role in buffering, reducing the vibration and impact on the cable 1 during operation.

[0054] A groove is formed between the ring body 381 and the through area 382. One or more spring-loaded retaining beads 384 are provided on one side of the inner wall of the groove. The spring-loaded retaining beads 384 are spherical structures with springs, similar to the way a washing machine's water inlet pipe connects to a faucet. When the insert card 32 is inserted into the retaining area, the spring-loaded retaining beads 384 will contact the outer side of the card. Due to the action of the spring, the spring-loaded retaining beads 384 will exert a certain pressure on the card, firmly fixing the card in the retaining area, further enhancing the stability and reliability of the collar 38 structure.

[0055] When installing cable 1 connector, first pass cable 1 through the clamping area 33 of the connecting cylinder, then rotate the threaded ring 34 to clamp the washer 35, thus fixing cable 1 inside the connecting cylinder. Next, align the insertion area 382 of the collar 38 with the cable 1 connector and insert it, while simultaneously inserting the insertion clip 32 into the locking area. At this time, the spring-loaded ball 384 will automatically lock the clip, completing the installation of the collar 38. Finally, install the connecting ring 2 as described above to complete the connection of the entire cable 1 connector.

[0056] Through the multiple structural designs of the clamping area 33 of the connecting cylinder and the collar 38, the mechanical stability and insulation performance of the cable 1 connector are further enhanced. The compression and fixation of the cable 1 by the connecting cylinder prevents the cable 1 from shifting, the insertion clip 32 and spring bead 384 structure of the collar 38 ensure the stability of the collar 38 itself, and the insulation layer 383 effectively prevents leakage. The combined effect of these structures enables this snap-fit ​​cable 1 connector to better solve the problems existing in traditional cable 1 connectors, and improve the reliability and safety of the cable 1 connection.

[0057] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A snap-fit ​​cable connector, comprising cables (1) for mating, wherein two cables (1) are provided with mating connectors (3) at their close ends, the inner side of the mating connectors (3) being adapted to the end of the cables (1), and a connecting ring (2) is provided between the two mating connectors (3) for fixing the two mating connectors (3). Its features are: The mating joint (3) includes a threaded cylinder (36), one end of which is provided with a frustum fastener (39), and a collar (38) is provided in the middle of the frustum fastener (39). The collar (38) is adapted to the end of the cable (1) to maintain the need for fixing the end of the cable (1). The outer side of the frustum fastener (39) is set at a preset angle and is engaged with the outer side of the collar (38). The outer side of the frustum fastener (39) abuts against the inner side of the connecting ring (2). When the connecting ring (2) rotates in a direction close to the threaded cylinder (36), it squeezes the outer side of the frustum fastener (39), forcing the cable (1) connector to abut tightly against the collar (38).

2. A snap-fit ​​cable connector according to claim 1, characterized in that: A connecting nut (37) is provided in the middle of the threaded cylinder (36), which divides the connecting cylinder into two areas.

3. A snap-fit ​​cable connector according to claim 1, characterized in that: The threaded cylinder (36) has two sets of threaded grooves (31) of different lengths, with the connecting nut (37) as the dividing line. One of the threaded grooves (31) is adapted to the connecting ring (2), and the other threaded groove (31) is connected to the threaded ring (34).

4. A snap-fit ​​cable connector according to claim 1, characterized in that: A washer (35) is provided at the bottom of the threaded cylinder (36) near one of the threaded grooves (31), and the washer (35) is adapted to the threaded ring (34).

5. A snap-fit ​​cable connector according to claim 1, characterized in that: The inner side of the threaded cylinder (36) is provided with a pressing area (33), which is connected to the cable (1). The threaded ring (34) and the washer (35) press one of the areas, so that the inner side of one of the areas presses and fixes the cable (1).

6. A snap-fit ​​cable connector according to claim 1, characterized in that: A snap-fit ​​card (32) is provided on one side of the collar (38), and the snap-fit ​​card (32) is adapted to the snap-fit ​​area opened on the inner side of the collar (38).

7. A snap-fit ​​cable connector according to claim 1, characterized in that: The collar (38) includes a ring body (381), and a through-hole area (382) is provided in the middle of the inner side of the ring body (381) for fixing the cable (1) joint.

8. A snap-fit ​​cable connector according to claim 7, characterized in that: An insulating layer (383) is provided on the inner side of the penetration area (382), and the insulating layer (383) is in contact with and adapted to the outer side of the cable (1).

9. A snap-fit ​​cable connector according to claim 7, characterized in that: A groove is provided between the ring (381) and the through area (382), and one or more spring beads (384) are provided on one side of the inner wall of the groove. The spring beads (384) are adapted to the outer side of the card.

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