A steel cable connector

Abstract

This utility model discloses a steel cable connector for a horizontal lifeline device for fall protection at heights. It includes a hollow connector body with a limiting nut at its lower part. The lower end of the limiting nut is connected to a hollow threaded rod, on which a lock head with an internal tapered hole is threadedly connected. The top of the threaded rod has a frustum-shaped inner core, which can be squeezed towards the center by the lock head to initially fix the steel cable. The upper part of the connector body has a connecting device, which contains a bearing and connects to a swinging device. The swinging device is assembled and fixed by bolts and a pin ring. Furthermore, the connector body has an observation hole to confirm the position of the steel cable and a set screw as a secondary protection structure. Even if the first locking device is not installed correctly, the set screw can still provide the locking force required by the manufacturer, effectively avoiding safety hazards caused by installation errors, ensuring that the static tensile force meets the standard after locking, significantly improving the safety and reliability of the device, and meeting practical application needs.

Description

Technical Field

[0001] This utility model relates to the field of connection equipment technology, and specifically to a steel cable connector. Background Technology

[0002] In the cable locking process of horizontal lifeline devices for fall protection at heights, existing cable connectors exhibit significant safety hazards and performance defects. These connectors generally lack secondary protection structures. When installation is not performed according to specifications for cable tightening, insufficient locking force can easily occur, leading to connector failure. This failure not only renders the device inoperable but can also cause accidents due to insecure cable fixation, posing a serious threat to the personal safety of users. Furthermore, horizontal lifeline devices for fall protection at heights have strict requirements for cable locking performance, requiring stable static tensile force after locking to meet safety standards. Existing connectors without secondary protection cannot mitigate the risks associated with installation errors, cannot reliably guarantee locking effectiveness, and fail to meet the core safety performance requirements of actual usage scenarios and manufacturers.

[0003] Therefore, there is an urgent need for a steel cable connector that can solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a steel cable connector.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A steel cable connector includes a connector body, a limiting nut, a set screw, a nut, a lock head, a swinging device, a pin ring, a bolt, and a bearing; Includes a connector body; the connector body is hollow; a limiting nut is provided at the lower part of the connector body, a threaded rod is provided at the lower end of the limiting nut, the threaded rod is provided with external threads, and the threaded rod is hollow; The lock head is hollow, and the lock head has an internal thread that matches the threaded rod. The threaded rod and the lock head are threadedly connected by the matching internal and external threads on the lock head. The lock head has a tapered hole inside, and a nut is provided on the threaded rod. The nut has an internal thread that matches the threaded rod. The connector body has a connecting device on its upper part, and a bearing is provided inside the connecting device; a swinging device is provided on the bearing, and the swinging device and the connecting device are rotatably connected to the bearing; a through hole is opened on the swinging device, and a bolt is provided in the through hole; the bolt is provided with an external thread that matches the internal thread of the nut, and the bolt can be threaded into the through hole through the nut; the bolt is also provided with a pin ring.

[0006] The inner core is located at the top of the threaded rod. The inner diameter of the inner core is smaller than the outer diameter of the threaded rod, but larger than the hollow inner diameter of the threaded rod. The inner core is shaped like a frustum, narrower at the top and wider at the bottom. The taper of the frustum of the inner core matches the taper inside the lock head.

[0007] Preferably, the connector body is provided with an observation hole.

[0008] Preferably, the connector body is provided with a set screw hole, and a set screw is provided in the set screw hole. The set screw is a screw and is threaded to the connector body. The set screw has a hexagonal hole.

[0009] Preferably, the limiting nut, threaded rod, and connecting device are all integrally formed with the connector body.

[0010] Preferably, the limiting nut is hexagonal in shape.

[0011] Preferably, the lower end of the lock head is frustum-shaped, and the upper end is hexagonal nut-shaped.

[0012] Preferably, the inner core is divided into four clips, with gaps between the clips. Beneficial effects

[0013] This invention effectively solves the problem of existing products lacking secondary protection. By adding a secondary protection structure, even if the first locking device is not installed correctly, it can still provide the locking force required by the manufacturer, avoiding insufficient locking force and product failure due to installation errors. Simultaneously, it can meet the steel cable locking requirements of horizontal lifeline devices for fall protection at heights, ensuring that the static tensile force meets the standard after locking, preventing injuries to users, significantly improving the safety and reliability of the device, and fully meeting the core safety performance requirements of actual application scenarios.

[0014] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0015] Figure 1 This is a left view of the main structure of this utility model; Figure 2 This is a front view of the main structure of this utility model; Figure 3 This is a perspective view of the main structure of this utility model; Figure 4 This is a front view of the connector body structure of this utility model; Figure 5 This is a cross-sectional view of the connector body structure of this utility model; Figure 6This is a schematic diagram of the inner core structure of this utility model; Figure 7 This is a perspective view of the connector body structure of this utility model; In the diagram: 1-Connector body; 2-Limit nut; 3-Setting screw; 4-Threaded rod; 5-Nut; 6-Lock head; 7-Connecting device; 8-Observation hole; 9-Swing device; 10-Pin ring; 11-Bolt; 12-Bearing; 13-Inner core; 1301-Clamping piece; 1302-Gap. Detailed Implementation

[0016] like Figure 1 As shown, a steel cable connector includes a connector body 1, a limiting nut 2, a set screw 3, a nut 5, a lock head 6, a swinging device 9, a pin ring 10, a bolt 11, and a bearing 12. The connector body 1 is hollow and allows a steel cable to be inserted into it. A limiting nut 2 is provided at the lower part of the connector body 1. A threaded rod 4 is provided at the lower end of the limiting nut 2. The threaded rod 4 is hollow and has external threads.

[0017] The lock head 6 is hollow and is used to insert the steel cable into the lock head 6. The lock head 6 has an internal thread that matches the threaded rod 4. The threaded rod 4 and the lock head 6 can be threaded together through the matching internal and external threads on the threaded rod 4 and the lock head 6. The lock head 6 has a tapered hole inside. The threaded rod 4 is equipped with a nut 5. The nut 5 has an internal thread that matches the threaded rod 4 and is used to limit the position of the lock head 6. The limiting nut 2 is used to limit the position of the nut 5 and the lock head 6.

[0018] The connector body 1 has a connecting device 7 on its upper part, and a bearing 12 is provided inside the connecting device 7. The bearing 12 has a swing device 9, and the swing device 9 and the connecting device 7 are rotatably connected to the bearing 12. The swing device 9 has a through hole, and a bolt 11 is provided inside the through hole. The bolt 11 has an external thread that matches the internal thread of the nut 5. The bolt 11 can be threaded into the through hole through the nut 5. The bolt 11 also has a pin ring 10.

[0019] The inner core 13 is located at the top of the threaded rod 4. The inner diameter of the inner core 13 is smaller than the outer diameter of the threaded rod, but larger than the hollow inner diameter of the threaded rod 4. The inner core 13 is in the shape of a frustum, which is narrower at the top and wider at the bottom. The taper of the frustum of the inner core 13 matches the taper inside the lock head 6.

[0020] Specifically, the connector body 1 is provided with an observation hole 8 for observing the real-time position of the steel cable, which can more accurately ensure that the steel cable has reached the designated position.

[0021] Specifically, the connector body 1 is provided with a set screw hole, and a set screw 3 is provided in the set screw hole. The set screw 3 is a screw with a diameter of 10mm. The set screw 3 is threadedly connected to the connector body 1. The set screw 3 is provided with a hexagonal screw hole. The hexagonal hole is used for external hexagonal wrench to adjust the tightness. By turning the set screw 3, the steel cable is radially pressed to prevent the steel cable from sliding axially or rotating circumferentially inside the connector, thereby ensuring that the steel cable is firmly connected to the connector, avoiding loosening when under tension, and improving stability.

[0022] Specifically, the limiting nut 2, the threaded rod 4, and the connecting device 7 are all integrally formed with the connector body 1, which improves the overall rigidity, enables it to withstand higher stress, and increases its strength.

[0023] Specifically, the limiting nut 2 is hexagonal in shape, which allows it to fit better with the nut 5.

[0024] Specifically, the lower end of the lock head 6 is shaped like a frustum, and the upper end is shaped like a hexagonal nut, so that it can have a larger contact surface with the hand when manually tightening.

[0025] Specifically, the inner core 13 is divided into four clips 1301, and there is a gap 1302 between the clips 1301. When the inner core 13 is squeezed, the clips 1301 will gather towards the middle until the gap 1302 is filled by the clips 1301. The tighter the gathering, the more tightly the steel cable in the middle is fixed.

[0026] Insert the steel cable through the hollow part of the connector body 1, and pass it sequentially through the lock head 6, inner core 13, and threaded rod 4. Confirm that the steel cable has reached the designated position through the observation hole 8 on the connector body 1. Then, manually tighten the lock head 6. With the help of the threaded engagement between the lock head 6 and the threaded rod 4, the lock head 6 moves upward on the threaded rod 4. The tapered hole inside the lock head 6 will squeeze the inner core 13, causing the clamping piece 1301 of the inner core 13 to gather towards the center and tightly fit the steel cable, completing the initial fixation of the steel cable. Then, tighten the nut 5 on the threaded rod 4 to make it fit tightly against the lock head 6 to limit the position of the lock head 6 and prevent the lock head 6 from loosening. Afterward, use the adapter tool to tighten the set screw 3 in the set screw hole of the connector body 1, so that the set screw 3 gradually presses the steel cable from the radial direction to form secondary protection. According to the actual installation angle of the horizontal lifeline device for high-altitude fall protection, use the bearing 12 between the connecting device 7 and the swing device 9 to adjust the angle of the swing device 9 to adapt to the overall device.

[0027] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0028] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A steel cable connector, characterized in that, Includes connector body (1), limit nut (2), set screw (3), nut (5), lock head (6), swing device (9), pin ring (10), bolt (11), and bearing (12); Includes a connector body (1); the connector body (1) is hollow; a limiting nut (2) is provided at the lower part of the connector body (1), and a threaded rod (4) is provided at the lower end of the limiting nut (2), the threaded rod (4) is provided with external threads, and the threaded rod (4) is hollow; The lock head (6) is hollow. The lock head (6) has an internal thread that matches the threaded rod (4). The threaded rod (4) and the lock head (6) are threaded together by the matching internal and external threads on the threaded rod (4). The lock head (6) has a tapered hole. The threaded rod (4) has a nut (5). The nut (5) has an internal thread that matches the threaded rod (4). The connector body (1) is provided with a connecting device (7) on its upper part, and a bearing (12) is provided inside the connecting device (7); a swing device (9) is provided on the bearing (12), and the swing device (9) and the connecting device (7) are rotatably connected to the bearing (12); a through hole is provided on the swing device (9), and a bolt (11) is provided in the through hole. The bolt (11) is provided with an external thread that matches the internal thread of the nut (5). The bolt (11) can be threaded into the through hole through the nut (5). A pin ring (10) is also provided on the bolt (11). It also includes an inner core (13), which is located at the top of the threaded rod (4). The inner diameter of the inner core (13) is smaller than the outer diameter of the threaded rod (4), but larger than the hollow inner diameter of the threaded rod (4). The inner core (13) is a frustum shape that is narrow at the top and wide at the bottom. The taper of the frustum of the inner core (13) matches the taper inside the lock head (6).

2. A wireline connector as claimed in claim 1, wherein The connector body (1) is provided with an observation hole (8).

3. A wireline connector as claimed in claim 1, wherein, The connector body (1) is provided with a set screw hole, and a set screw (3) is provided in the set screw hole. The set screw (3) is a screw. The set screw (3) is threadedly connected to the connector body (1). A hexagonal hole is provided on the set screw (3).

4. A wireline connector as claimed in claim 1, wherein, The limiting nut (2), threaded rod (4), and connecting device (7) are all integrally formed with the connector body (1).

5. A wireline connector as claimed in claim 1, wherein, The limiting nut (2) is hexagonal.

6. A wireline connector as claimed in claim 1, wherein, The lower end of the lock head (6) is frustum-shaped, and the upper end is hexagonal nut-shaped.

7. A wireline connector as claimed in claim 1, wherein, The inner core (13) is divided into four clips (1301), and there are gaps (1302) between the clips (1301).

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