Eccentrically fixed galvanized sheet cable joint

Abstract

The utility model discloses an eccentric fixed galvanized plate cable joint, including the whole is the cylindrical joint casing and the outer ring of the outer joint end of casing, the joint casing adopts high strength galvanized sheet integrated stamping, including the outer joint end for connecting with the terminal box, the inner joint end for fixed cable and the intermediate annular protruding of connecting outer joint end and inner joint end, the outer joint end outer sleeve sets the outer ring, and the inner joint end realizes the eccentric fixed cable of fastening bolt. The utility model discloses through the outer ring buckle and realizes quick clamping with terminal box, replaces traditional screw tightening mode, and can complete installation without special tool, and the inner joint end adopts eccentric fixed design, and realizes the close clamping of cable through unilateral extrusion, and the joint casing adopts high strength galvanized sheet integrated stamping, has excellent corrosion resistance and structural strength.

Description

Technical Field

[0001] This utility model relates to the field of pipe connector technology, and in particular to an eccentric fixed galvanized plate cable connector. Background Technology

[0002] In home renovation and various electrical installation projects, junction boxes, as key electrical accessories, are widely used at wire connection points (such as where the wiring is long or where the conduit bends). They serve as the transition connection between the conduit and the wire, and provide effective protection for the wire, making them an important component for ensuring the safe and stable operation of the electrical system. Cable connectors, as the core component connecting cables and junction boxes, directly affect the installation efficiency and maintenance costs of the entire electrical system due to their connection reliability and ease of operation.

[0003] Currently, the existing connection methods between cable connectors and junction boxes have many shortcomings:

[0004] First, the connection structure lacks stability. Some connectors use a single snap-fit ​​or simple socket connection to the junction box, lacking multiple limiting designs. During long-term use, vibration, temperature changes, or external pulling forces can easily cause relative displacement between the connector and the junction box, leading to uneven stress on the cable and even problems such as poor contact and signal transmission interruption. This can pose a serious safety risk, especially in scenarios such as wall wiring in building construction or high- and low-voltage cable connections in power systems. Second, the cable fixing method is unreasonable. Traditional connectors often use symmetrical bolt fixing or clamp-type clamping structures, resulting in uneven distribution of fixing force on the cable. At the same time, some connector fixing components are made of single-layer ordinary board, which is prone to deformation after long-term stress, further increasing the risk of cable loosening and affecting the stability of the electrical system. Third, installation and maintenance efficiency is low. Among the mainstream connection methods, screw tightening structures still account for a large proportion. During installation, the screw holes must be precisely aligned, which makes the operation extremely difficult in confined spaces (such as inside a suspended ceiling or in a wall cavity). During disassembly, the screws are prone to seizing due to rust and oxidation, which means that the original components must be damaged when replacing the connector, increasing maintenance costs and time.

[0005] Therefore, in view of the problems of insufficient connection stability, unreliable cable fixing, and cumbersome installation and maintenance in existing cable joints, there is an urgent need to design a new type of cable joint with a high-strength connection structure, strong adaptability and convenient operation, so as to meet the needs of the construction, power, communication and other fields for the safety and efficiency of cable wiring. Utility Model Content

[0006] The purpose of this utility model is to provide an eccentrically fixed galvanized sheet cable connector to solve the technical problems existing in the prior art.

[0007] To achieve the above objectives, the specific technical solution of this utility model is as follows:

[0008] An eccentrically fixed galvanized steel cable connector includes a cylindrical connector housing and an outer ring fitted onto the outer end of the connector housing. The connector housing is integrally stamped from high-strength galvanized steel sheet and includes an outer end for connecting to a junction box, an inner end for fixing the cable, and a central annular protrusion connecting the outer end and the inner end. The outer ring is fitted over the outer end, and the cable is eccentrically fixed to the inner end by fastening bolts.

[0009] Preferably, the inner end includes an arc-shaped surface, a first flat surface, and a second flat surface, wherein the first flat surface and the second flat surface are perpendicular to each other; the first flat surface is a reinforced double-layer structure and has a fastening threaded hole, wherein a fastening bolt is installed in the fastening threaded hole, and the fastening force of the fastening bolt is offset from the center of the arc-shaped surface, thereby achieving tight fixation of the cable through unilateral compression.

[0010] Preferably, the outer end includes an outer ring mounting part, the upper end of which is fixedly connected to the upper edge of the outer ring by a bending connection, and the diameter of the upper edge of the outer ring is larger than the diameter of the outer ring mounting part; a bending clearance is formed between the outer ring mounting part and the upper edge of the outer ring.

[0011] Preferably, the intermediate annular protrusion is an annular protrusion located between the outer end and the inner end, including an upper plane and a lower inclined plane; the upper plane is used to abut the lower end of the outer ring and cooperate with the upper edge of the outer ring to realize the upper and lower limit of the outer ring; the lower end of the lower inclined plane is fixedly connected to the upper end of the inner end.

[0012] Preferably, the outer ring is arc-shaped, with one outer ring buckle and two retaining buckles arranged opposite each other on its side wall; the outer ring buckle is used to engage with the junction box, and the retaining buckles abut against the upper surface of the middle annular protrusion and can form an elastic fit with the junction box mounting hole.

[0013] Preferably, the upper end of the connector housing has a "racetrack" shaped opening for the cable to pass through.

[0014] This utility model has the following advantages:

[0015] 1. This utility model achieves quick connection with the junction box through an outer ring buckle, replacing the traditional screw tightening method, and can be installed without special tools.

[0016] 2. The inner connection end adopts an eccentric fixing design. The force direction of the fastening bolt is deviated from the center of the arc surface, and the cable is tightly clamped by unilateral compression.

[0017] 3. The connector housing is made of high-strength galvanized sheet by one-piece stamping, which has excellent corrosion resistance and structural strength and can adapt to complex working conditions such as humid and dusty environments. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a bottom view of the overall structure of this utility model;

[0020] Figure 3 This is a three-dimensional schematic diagram of the overall outer ring structure of this utility model;

[0021] Figure 4 This is a three-dimensional schematic diagram of the overall structure of the connector housing of this utility model;

[0022] Figure 5 This is a bottom view of the overall structure of the connector housing of this utility model;

[0023] Figure 6 This is a side view of the overall structure of the connector housing of this utility model.

[0024] Explanation of reference numerals in the attached drawings: 10, outer ring; 11, outer ring buckle; 12, retaining buckle; 20, connector housing; 21, external end; 211, bent connection; 212, upper retaining edge of outer ring; 213, outer ring mounting part; 214, bent clearance; 22, middle annular protrusion; 221, upper plane; 222, lower inclined plane; 23, internal end; 231, arc-shaped surface; 232, first straight surface; 233, second straight surface; 234, fastening threaded hole; 30, fastening bolt. Detailed Implementation

[0025] To better understand the purpose, structure, and function of this utility model, the following description, in conjunction with the accompanying drawings, provides a more detailed account of an eccentrically fixed galvanized steel cable connector.

[0026] like Figure 1-6 As shown, this utility model provides an eccentric fixed galvanized sheet cable connector, including a connector housing 20 that is cylindrical in shape, and an outer ring 10 that is sleeved on the outer end 21 of the connector housing 20. The two work together to fix the cable and achieve a stable connection with the junction box.

[0027] The connector housing 20 is the core component of the cable connector. It is made of high-strength galvanized sheet through integral stamping, possessing excellent structural strength and corrosion resistance. It is cylindrical in shape with a "racetrack"-shaped opening at the top. It includes an external end 21 for connecting to a junction box, an internal end 23 for fixing the cable, and a central annular protrusion 22 connecting the external end 21 and the internal end 23. The external end 21 is located at the upper end of the connector housing 20 and is fitted with an outer ring 10. The external end 21 can be snapped onto the junction box through the outer ring 10. The external end 21 includes an outer ring mounting part 213 for mounting the outer ring 10. The upper end of the outer ring mounting part 213 is fixedly connected to the upper edge 212 of the outer ring via a bending connection 211. The diameter of edge 212 is larger than the diameter of outer ring mounting part 213. After the outer ring 10 is installed on the outer ring mounting part 213, the upper edge 212 of the outer ring abuts against the upper end of the outer ring 10 to prevent the outer ring 10 from moving upward. A bend clearance 214 is formed between the outer ring mounting part 213 and the upper edge 212 of the outer ring. The middle annular protrusion 22 is an annular protrusion located between the outer end 21 and the inner end 23. Its upper part is connected to the outer end 21 and its lower part is connected to the inner end 23, which plays a role in structural transition and limiting. It includes an upper plane 221 and a lower inclined plane 222. After the outer ring 10 is installed on the outer ring mounting part 213, the upper plane 221 abuts against the lower end of the outer ring 10 to prevent the outer ring 10 from moving downward. It cooperates with the upper edge 212 of the outer ring to fix the outer ring 10 vertically.

[0028] The inner end 23 is located at the lower end of the connector housing 20 and is used to fix the cable from the inside. Its upper end is fixedly connected to the lower end of the lower inclined surface 222. The inner end 23 includes an arc-shaped surface 231 (fitting the outer wall of the cable), and a first flat surface 232 and a second flat surface 233. The first flat surface 232 and the second flat surface 233 are perpendicular to each other. The first flat surface 232 is a reinforced double-layer structure design (to improve the stress strength). A fastening threaded hole 234 is opened in the middle of the first flat surface 232 for the fastening bolt 30 to be installed therein. In particular, when the fastening bolt 30 applies a fastening force, the direction of its fastening force is deviated from the center of the arc surface 231, forming an "eccentric fixing" structure, which can achieve tight fixing of the cable through unilateral compression.

[0029] The outer ring 10 is generally arc-shaped and is fitted onto the outer ring mounting part 213 of the connector housing 20. Its upper end abuts against the upper edge 212 of the outer ring, and its lower end abuts against the upper surface 221 of the middle annular protrusion 22. A pair of outer ring buckles 11 are provided opposite to each other on the side wall of the outer ring 10. The outer ring buckles 11 are used to engage with the junction box. At the same time, two retaining buckles 12 are provided opposite to each other on the side wall of the outer ring 10. The retaining buckles 12 abut against the upper surface 221 of the middle annular protrusion 22 and play a role in fixing the outer ring 10. At the same time, the retaining buckles 12 can form an elastic fit with the junction box mounting hole, making the connection between the connector and the junction box more stable.

[0030] In use, first, fit the outer ring 10 onto the outer ring mounting part 213 of the connector housing 20, so that the upper end of the outer ring 10 abuts against the upper edge 212 of the outer ring, and the lower end abuts against the upper surface 221 of the middle annular protrusion 22, thus completing the installation of the outer ring 10. Next, insert the cable into the inner end 23 of the connector housing 20, so that the end of the cable exits from the "racetrack" shaped opening in the middle of the outer end 21. Then, install the fastening bolt 30 into the fastening threaded hole 234 of the first flat surface 232 of the inner end 23, and tighten the fastening bolt 30. Since the tightening force of the fastening bolt 30 is offset from the center of the arc surface 231, it can eccentrically fix the cable from the inside, ensuring that the cable is stable and does not loosen. Finally, align the external terminal 21 with the connection port of the junction box, and engage it with the junction box through the outer ring buckle 11 on the side wall of the outer ring 10, so that the retaining buckle 12 and the mounting hole of the junction box form a tight fit, thereby achieving a stable connection between the connector and the junction box.

[0031] The beneficial effects of this utility model are:

[0032] 1. This utility model achieves quick connection between the outer ring buckle 11 and the junction box, replacing the traditional screw tightening method. Installation can be completed without special tools, making it especially convenient to operate in confined spaces (such as ceilings and wall cavities). At the same time, the snap-fit ​​structure avoids the disassembly difficulties caused by screw corrosion, significantly reducing the time and cost of later maintenance, and solving the pain points of cumbersome installation and difficult disassembly in the prior art.

[0033] 2. The inner end 23 adopts an eccentric fixing design, with the force direction of the fastening bolt 30 deviating from the center of the arc surface 231, achieving tight clamping of the cable through unilateral compression. Compared with the traditional symmetrical fixing method, this structure has stronger adaptability to cables of different diameters and can effectively avoid local loosening; at the same time, the first flat surface 232 adopts a reinforced double-layer structure to improve the stress strength, prevent deformation problems during long-term use, and further ensure the reliability of the fixation.

[0034] 3. The connector housing 20 is made of high-strength galvanized sheet through a single stamping process, possessing excellent corrosion resistance and structural strength, and can adapt to complex working conditions such as humidity and dust. The overall structural design takes into account both mechanical stability and material durability, significantly extending the service life of the connector, reducing the frequency of replacement, and is suitable for long-term cabling needs in multiple fields such as construction, power, and communications.

[0035] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within 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.

[0037] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. An eccentrically fixed galvanized steel cable connector, comprising a connector housing (20) that is integrally cylindrical and an outer ring (10) sleeved on the outer end (21) of the connector housing (20), characterized in that, The connector housing (20) is integrally stamped from a high-strength galvanized sheet, including an external end (21) for connecting to the junction box, an internal end (23) for fixing the cable, and a middle annular protrusion (22) connecting the external end (21) and the internal end (23); the external end (21) is fitted with an outer ring (10), and the internal end (23) is eccentrically fixed to the cable by fastening bolts (30).

2. The eccentrically fixed galvanized steel cable connector according to claim 1, characterized in that, The inner end (23) includes an arc-shaped surface (231), a first flat surface (232) and a second flat surface (233). The first flat surface (232) and the second flat surface (233) are perpendicular to each other. The first flat surface (232) is a reinforced double-layer structure and has a fastening threaded hole (234). A fastening bolt (30) is installed in the fastening threaded hole (234). The fastening force of the fastening bolt (30) is deviated from the center of the arc-shaped surface (231). The cable is tightly fixed by unilateral extrusion.

3. The eccentrically fixed galvanized steel cable connector according to claim 2, characterized in that, The outer end (21) includes an outer ring mounting part (213), the upper end of which is fixedly connected to the upper edge of the outer ring (212) by a bending connection (211), and the diameter of the upper edge of the outer ring (212) is larger than the diameter of the outer ring mounting part (213); a bending clearance (214) is formed between the outer ring mounting part (213) and the upper edge of the outer ring (212).

4. The eccentrically fixed galvanized steel cable connector according to claim 3, characterized in that, The intermediate annular protrusion (22) is an annular protrusion located between the outer end (21) and the inner end (23), including an upper plane (221) and a lower inclined plane (222); the upper plane (221) is used to abut against the lower end of the outer ring (10) and cooperate with the upper edge (212) of the outer ring to realize the upper and lower limit of the outer ring (10); the lower end of the lower inclined plane (222) is fixedly connected to the upper end of the inner end (23).

5. The eccentrically fixed galvanized steel cable connector according to claim 4, characterized in that, The outer ring (10) is arc-shaped, and a pair of outer ring buckles (11) and two retainers (12) are provided on its side wall. The outer ring buckles (11) are used to engage with the junction box, and the retainers (12) abut against the upper plane (221) of the middle annular protrusion (22) and can form an elastic fit with the junction box mounting hole.

6. The eccentrically fixed galvanized steel cable connector according to claim 5, characterized in that, The upper end of the connector housing (20) is provided with a "racetrack" shaped opening for the cable to pass through.

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