Cable threading equipment
By using a cable threading device with fixed and rotating rings on the cable, rollers and dampers are used to decompose friction, solving the problems of cable wear and jamming in the channel and achieving a highly efficient cable threading process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU JINJIANG CABLE GRP CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-08
AI Technical Summary
In existing technologies, the cables come into direct contact with the inner wall of the channel during installation, resulting in rigid friction, which causes wear and jamming, and reduces construction efficiency.
The cable threading device uses a fixed ring and a rotating ring. The fixed ring has a rotating mechanism consisting of rollers, and the rotating ring has a damper and a spring. The rollers are tilted to decompose the friction force, and the distance of the rotating mechanism is adjusted by the damper to adapt to channels with different diameters and shapes.
It effectively reduces the friction between cables and the inner wall of the channel, avoids jamming and tangling, improves construction efficiency, and adapts to channels of different shapes and sizes.
Smart Images
Figure CN224217997U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cable threading technology, and specifically to a cable threading device. Background Technology
[0002] In power engineering and infrastructure construction, cable laying often requires passing through narrow spaces such as pre-buried pipes and trenches. Due to the limited size of the passage, construction workers cannot directly enter the interior to work, and usually adopt a cable-laying method of continuously pushing the cable from one end or pulling it from the other end.
[0003] This traditional cable-threading method lacks buffering, causing the cable to directly rub against the inner wall of the channel during installation. This friction not only exacerbates the wear on the cable's outer sheath but also causes the cable to get stuck and tangled in the channel, thus reducing construction efficiency. Utility Model Content
[0004] To address the aforementioned technical shortcomings, the purpose of this utility model is to provide a cable threading device that solves the problem in the prior art where the cable directly contacts the inner wall of the channel, resulting in rigid friction, which exacerbates wear, jamming, and entanglement, ultimately reducing construction efficiency.
[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides a cable threading device, comprising: a fixed ring with a first opening, wherein the cable is inserted into the first opening; a rotating ring rotatably disposed on the outer periphery of the fixed ring, wherein the rotating ring is provided with a plurality of rotating mechanisms for driving the rotating ring to rotate around the fixed ring; wherein the rotating mechanism includes a plurality of first rollers, the first rollers being attached to the inner wall of the channel through which the cable is threaded.
[0006] Preferably, a damper is fixed on the rotating ring, one end of the damper is rotatably connected to the fixed ring, and the other end of the damper is connected to the first roller.
[0007] Preferably, the damper has a fixed end and a telescopic end, the fixed ring is fixed on the fixed end of the damper, the fixed end of the damper and the fixed ring are rotatably connected, and the telescopic end of the damper is connected to the first roller.
[0008] Preferably, the outer circumference of the fixed ring is provided with a roller groove, and a plurality of second rollers are provided in the roller groove and roll therein. These second rollers are connected by a second wheel seat, and the second wheel seat is fixed on the fixed end of the damper.
[0009] Preferably, a first wheel seat is fixed on the telescopic end of the damper, the first roller is rotatably mounted on the first wheel seat, and a spring is sleeved on the outside of the telescopic end of the damper, with the two ends of the spring abutting against the rotating ring and the first wheel seat respectively.
[0010] Preferably, the first roller is inclined and forms a contact position with the inner wall of the channel it passes through, and the contact position forms an angle α with the plane of the cross section of the channel it passes through.
[0011] Preferably, the included angle α decomposes the radial force β of the first roller moving along the channel into a tangential component θ that drives the first roller to rotate, and an axial component γ that drives the rotating ring to rotate around the fixed ring.
[0012] Preferably, it also includes a fixing base, the fixing base having a second opening, and the cable being secured in the second opening.
[0013] Preferably, a plurality of third rollers are rotatably disposed within the second port, and the third rollers are attached to the surface of the cable.
[0014] Preferably, it further includes a cable conveying mechanism located on the side of the fixed base away from the fixed ring.
[0015] The beneficial effects of this utility model are as follows:
[0016] This utility model features a fixed ring that is secured to the outside of the cable, and a rotating ring that is rotatably mounted on the outer periphery of the fixed ring. This allows the cable to be suspended in the channel and not in direct contact with the inner wall of the channel, thus preventing damage to the outer sheath of the cable. Furthermore, the rotating ring is equipped with a rotating mechanism consisting of first rollers, which effectively reduces the friction of the cable during its movement and avoids problems such as jamming and tangling during cable threading.
[0017] Next, this invention also includes a damper located between the fixed ring and the rotating ring. The damper works in conjunction with the spring to change the distance between each rotating mechanism and the rotating ring, so that the device can be applied to channels with different apertures or non-circular channels.
[0018] Furthermore, the first roller of this invention is inclined, forming an inclined contact position with the inner wall of the channel it passes through, creating an angle. This angle decomposes the radial force of the cable's movement along the channel into a tangential component that enables the first roller to rotate and an axial component that enables the rotating ring to rotate. The rotation of the first roller effectively reduces friction between the channel and the device. The rotation of the rotating ring allows the device to dynamically spiral forward within the pipe, automatically adjusting its posture to adapt to pipe bends or axial deviations, preventing sluggishness or jamming. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the structure of a cable threading device according to the present invention.
[0021] Figure 2 This is a schematic diagram of some components of a cable threading device according to the present invention. Figure 1 .
[0022] Figure 3 This utility model relates to a cable threading device. Figure 2 Enlarged view of point A in the middle.
[0023] Figure 4 This utility model relates to a cable threading device. Figure 2 Enlarged view of point B in the middle.
[0024] Figure 5 This is a front view of the rotating mechanism of a cable threading device according to the present invention.
[0025] Figure 6 This is a schematic diagram of some components of a cable threading device according to the present invention. Figure 2 .
[0026] Explanation of reference numerals in the attached figures:
[0027] 1. Fixed ring; 11. First port; 12. Roller groove; 2. Rotating ring; 3. Rotating mechanism; 31. First roller; 32. First wheel seat; 4. Damper; 41. Spring; 5. Second wheel seat; 51. Second roller; 6. Fixed seat; 61. Second port; 62. Third roller. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0029] As mentioned earlier, cable laying often requires traversing narrow spaces such as buried pipes and trenches. Due to the limited size of the passage, construction workers cannot directly enter to work inside, and a common method is to continuously push the cable from one end or pull it from the other. This traditional cable-laying method lacks cushioning, causing the cable to directly rub against the inner wall of the passage during the laying process. This friction not only aggravates the wear of the cable's outer sheath but also causes the cable to get stuck and tangled in the passage, thus reducing construction efficiency.
[0030] In view of this, the present invention provides a cable threading device that solves the above-mentioned technical problems. The present invention solves the problem in the following way.
[0031] Example 1:
[0032] Please refer to the instruction manual appendix. Figures 1 to 5 As shown in the figure, this utility model provides a cable threading device, which includes at least a fixed ring 1, a rotating ring 2, and a rotating mechanism 3. The fixed ring 1 has a first opening 11, and the cable is inserted into the first opening 11. The rotating ring 2 is provided with several dampers 4, each damper having a fixed end and a telescopic end, and the damper 4 is fixed to the rotating ring 2 via the fixed end.
[0033] Meanwhile, a roller groove 12 is formed on the fixed ring 1, and several second rollers 51 are arranged in the roller groove 12. These second rollers 51 are connected by second wheel seats 5, which are fixed to the fixed end of the damper 4. The opening of the roller groove 12 has a narrowed end, and a limiting piece is provided at the fixed end of the damper 4 near the narrowed end. The limiting piece works in conjunction with this narrowed end, such as... Figure 3 As shown.
[0034] In this first embodiment, as Figure 2 or Figure 4 As shown, the rotating mechanism 3 includes several first rollers 31, which are evenly arranged and whose roller surfaces are in contact with the inner wall of the passage. These first rollers 31 are connected together by first wheel seats 32, which are fixed to the telescopic end of the damper 4. At the same time, a spring 41 is also sleeved on the outside of the telescopic end of the damper 4. The two ends of the spring 41 abut against the outer circumferential surface of the rotating ring 2 and the first wheel seat 32, respectively. This allows the first wheel seat 32 to change its distance from the rotating ring 2, thereby using the environment of different passages.
[0035] Therefore, in the specific implementation of this embodiment, the operator first places the cable to be threaded into the first opening 11 of the fixing ring 1, and then places the device along with the cable into the channel to be threaded, and applies a force to move the cable (through a cable conveying mechanism, such as a conveyor, or manual conveying). This force drives the cable to move radially along the channel. During the movement, since the cable is placed inside the fixing ring 1, its outer sheath avoids direct contact with the inner wall of the channel, thus avoiding friction-induced damage and threading resistance. At the same time, the first roller 31 adheres to the inner wall of the channel and rolls along it. Through the rolling of the first roller 31, the original friction of the cable is changed into rolling force, further reducing threading resistance and thus improving threading efficiency.
[0036] Example 2:
[0037] Based on the above embodiments, in order to further clarify and completely explain the technical solutions therein, this utility model also provides an embodiment two. In this embodiment two, the first roller 31 is arranged at an angle, such as... Figure 4 or Figure 5 As shown, the first roller 31 fits against the inner wall of the channel it passes through, forming a contact position (e.g., Figure 5 (As shown by the dashed line in the image), the plane containing the contact point and the cross-section of the channel it passes through (as shown by the dashed line in the image). Figure 5 (As shown by the horizontal dashed line in the image) forms an included angle α.
[0038] When a force is applied to the cable, causing it to move within the channel, the fixed ring 1 and the rotating ring 2 also move radially along the channel due to this force. During this movement, the first roller 31 contacts the inner wall of the channel, generating a normal reaction force. Since the first roller 31 is inclined, this normal reaction force is decomposed into a tangential component and an axial component (i.e.,...). Figure 5 The forces θ and γ in the equation are: tangential force θ drives the first roller 31 to roll along the inner wall of the fixed ring 1, while axial force γ generates a torque on the rotating ring 2 around the axis of the fixed ring 1. All the axial forces γ of the first roller 31 together form a resultant torque, overcoming the frictional resistance between the rotating ring 2 and the fixed ring 1, ultimately driving the rotating ring 2 to rotate around the fixed ring 1 as they travel together.
[0039] When the passage has bends or irregular inner walls, the rotation of the rotating ring 2 allows the first roller 31 to adjust the contact angle in real time, ensuring that the equipment always moves stably radially along the passage and avoiding jamming or deviation.
[0040] Example 3:
[0041] Based on the above embodiments, in order to further clarify and completely explain the technical solutions therein, this utility model also provides Embodiment Three. For example... Figure 1 or Figure 6 As shown in Embodiment 3, the cable threading device provided by this utility model further includes a fixing base 6, which has a second opening 61. The cable is secured within the second opening 61. A plurality of third rollers 62 are rotatably disposed within the second opening 61, and the third rollers 62 are in contact with the surface of the cable. This ensures that the cable is suspended at the opening of the threading channel. When the user evenly feeds the cable through the aforementioned cable conveying mechanism, the cable suspended at the opening avoids direct contact with the edge of the opening, thus preventing wear on the cable's outer sheath.
[0042] In summary, the cable threading device provided by this utility model and its various embodiments has the following advantages over the prior art, including but not limited to:
[0043] This utility model features a fixed ring 1 that is secured to the outside of the cable, and a rotating ring 2 that is rotatably disposed around the outer periphery of the fixed ring 1. This allows the cable to be suspended in the channel and not to directly contact the inner wall of the channel, thus preventing damage to the outer sheath of the cable. Furthermore, the rotating ring 2 is equipped with a rotating mechanism 3 consisting of a first roller 31, which effectively reduces the friction of the cable during its movement and avoids problems such as jamming and tangling during cable threading.
[0044] Next, this utility model also provides a damper 4 located between the fixed ring 1 and the rotating ring 2. The damper 4 works in conjunction with the spring 41 to change the distance between each rotating mechanism 3 and the rotating ring 2, so that this device can be applied to channels with different apertures or non-circular channels.
[0045] Furthermore, the first roller 31 of this invention is inclined, forming an inclined contact position with the inner wall of the channel it passes through, and forming an angle. This angle decomposes the radial force of the cable's movement along the channel into a tangential component that enables the first roller 31 to rotate and an axial component that enables the rotating ring 2 to rotate. The rotation of the first roller 31 effectively reduces the friction between the channel and the device. The rotation of the rotating ring 2 enables the device to dynamically spiral forward within the pipe, thereby automatically adjusting its posture to adapt to the pipe's curvature or axial deviation, avoiding sluggishness or jamming.
[0046] Finally, the fixing base 6 of this utility model also suspends the cable located at the edge of the channel, effectively reducing the friction of the cable during its movement and avoiding the problems of jamming and tangling during the cable threading process.
[0047] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of this utility model and its equivalents, this utility model also intends to include these modifications and variations.
Claims
1. A cable threading device, characterized in that, include: A retaining ring (1) with a first opening (11) is provided, and the cable is secured in the first opening (11); A rotating ring (2) is rotatably disposed on the outer periphery of the fixed ring (1), and the rotating ring (2) is provided with a plurality of rotating mechanisms (3) that drive the rotating ring (2) to rotate around the fixed ring (1). The rotating mechanism (3) includes a plurality of first rollers (31), which are attached to the inner wall of the passage.
2. The cable threading device as described in claim 1, characterized in that, A damper (4) is fixed on the rotating ring (2). One end of the damper (4) is rotatably connected to the fixed ring (1), and the other end of the damper (4) is connected to the first roller (31).
3. The cable threading device as described in claim 2, characterized in that, The damper (4) has a fixed end and a telescopic end. The fixed ring (1) is fixed on the fixed end of the damper (4). The fixed end of the damper (4) and the fixed ring (1) are rotatably connected. The telescopic end of the damper (4) is connected to the first roller (31).
4. The cable threading device as described in claim 3, characterized in that, The fixed ring (1) has a roller groove (12) on its outer periphery. The roller groove (12) has a number of second rollers (51) that roll inside it. These second rollers (51) are connected by a second wheel seat (5), which is fixed on the fixed end of the damper (4).
5. A cable threading device as described in claim 3, characterized in that, The first wheel seat (32) is fixed on the telescopic end of the damper (4), and the first roller (31) is rotatably mounted on the first wheel seat (32). A spring (41) is sleeved on the outside of the telescopic end of the damper (4), and the two ends of the spring (41) abut against the rotating ring (2) and the first wheel seat (32) respectively.
6. A cable threading device as described in claim 1, characterized in that, The first roller (31) is inclined and forms a contact position with the inner wall of the channel it passes through. The contact position and the plane of the cross section of the channel it passes through form an angle α.
7. A cable threading device as described in claim 6, characterized in that, The included angle α decomposes the radial force β of the first roller (31) moving along the channel into a tangential force θ that drives the first roller (31) to rotate, and an axial force γ that drives the rotating ring (2) to rotate around the fixed ring (1).
8. A cable threading device as described in claim 1, characterized in that, It also includes a fixing seat (6), which has a second opening (61) and the cable is clamped in the second opening (61).
9. A cable threading device as described in claim 8, characterized in that, A plurality of third rollers (62) are rotatably disposed inside the second port (61), and the third rollers (62) are attached to the surface of the cable.
10. A cable threading device as described in claim 8, characterized in that, It also includes a cable conveying mechanism located on the side of the fixed base (6) away from the fixed ring (1).