A cable bending protection device

Abstract

This invention discloses a cable bending protection device, installed on a cable for bending protection, comprising: a ring, a limiting module, and a connecting module. The limiting module includes a fixed frame, with a supporting spring, a wheel, and a sliding rod extending into the fixed frame inside. The ring has a flexible shaft mounting seat on its surface, and two fixed frame mounting seats and two fixed plate mounting seats. The connecting module includes a connecting block, with two connecting parts and four sliding rod mounting seats on its surface. Two flexible shafts are respectively mounted on the two connecting parts and connected and fixed by adjusting nuts. One end of the sliding rod is located inside the fixed frame, and the other end is located inside the sliding rod mounting seat. Both ends of the flexible shafts are located inside the flexible shaft mounting seats. This invention, through the combined action of the sliding rod, supporting spring, and flexible shafts, reduces the degree of cable bending and protects the cable from insulation damage caused by bending.

Description

Technical Field

[0001] This invention relates to the field of cable protection devices, and specifically to a cable bending protection device. Background Technology

[0002] Cables are crucial transportation equipment used in power information transmission and electromagnetic energy conversion. They are essential for power delivery in industrial manufacturing, construction, agricultural production, scientific research, space and ocean exploration, and even in daily life. Current technology protects cables by installing protective tubes on their surface to prevent surface damage from external forces. While this method prevents direct damage from external forces, cables are susceptible to bending under pressure. When the bending exceeds the minimum permissible radius, insulation damage may occur, leading to internal cable failure and affecting cable usability. Therefore, we need to propose a cable bending protection device to address these issues. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a cable bending protection device that ensures that the actual working radius of the cable is greater than the minimum bending radius of the cable during the use of the cable, and limits the degree of bending of the cable so as not to affect the cable surface and the internal structure of the cable.

[0004] The technical problem to be solved by this invention is achieved by the following technical solution: a cable bending protection device, comprising...

[0005] A limiting structure set on the surface of the cable.

[0006] The limiting structure consists of two rings, four limiting modules, and one connecting module.

[0007] Both the loop and the connecting module are disposed on the cable surface. The connecting module has loops spaced apart at both ends. Two limiting modules are symmetrically arranged on a plane for each loop.

[0008] The connecting module is provided with two flexible shafts, an adjusting nut, a connector, and a connecting block. The connecting block is disposed on the surface of the cable, and the flexible shaft is disposed on the surface of the connecting block. The two ends of the flexible shaft are connected to the ring sleeve through the connector, and the adjusting nut is disposed in the middle of the flexible shaft.

[0009] The limiting module consists of a wheel, a support spring, a fixing plate, and a fixing frame. The limiting module is set on a plane perpendicular to the connecting module. The fixing plate is connected and fixed to the fixing frame along the outer side of the ring via a shaft. The support spring and the wheel are provided on the inner side of the fixing frame. The wheel is connected to the connecting block via a sliding rod.

[0010] Preferably, the lower end of the fixing frame is disposed inside the ring sleeve, and the upper end of the fixing frame is disposed outside the ring sleeve.

[0011] Preferably, the support spring limits the wheel to the upper inner side of the fixed frame.

[0012] Preferably, the upper end of the fixing frame is provided with a notch to accommodate the sliding rod, the sliding rod can move within the notch, and the sliding rod can adjust the position of the wheel inside the fixing frame.

[0013] Preferably, the sliding rod is telescopic.

[0014] Preferably, a spring is provided inside the sliding rod.

[0015] Preferably, the flexible shaft is capable of bending in all directions.

[0016] Preferably, the flexible axis is symmetrically arranged at both ends of the connecting block.

[0017] The beneficial effects of this invention are:

[0018] By installing cable bending protection devices on the cable, the degree of bending of the cable is limited when the cable is subjected to bending force, ensuring that the degree of bending does not affect the internal structure of the cable. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention.

[0020] Figure 2 This is a perspective view of the structure of the limiting module of the present invention.

[0021] Figure 3 This is a schematic diagram of the connector connection of the present invention.

[0022] Figure 4 Perspective view of the ring structure of the present invention

[0023] Figure 5 This is a schematic diagram of the connector structure of the present invention.

[0024] Figure 6 Perspective view of the ring connection of the present invention

[0025] In the diagram: 1-ring, 101-flexible shaft mounting base, 2-restriction module, 201-wheel, 202-support spring, 203-fixed plate, 204-fixed bracket, 205-connecting shaft, 206-sliding rod, 3-connecting module, 301-flexible shaft, 302-adjusting nut, 303-connector, 304-connecting block, 305-sliding rod mounting base Detailed Implementation

[0026] To facilitate a clear understanding of the technical means, creative features, objectives, and effects of this invention, the invention will be further described below in conjunction with specific embodiments.

[0027] Example 1, as Figures 1-6 As shown.

[0028] A cable bending protection device includes a limiting device 2, which consists of a ring 1, a limiting module 2, and a connecting module 3. There are two rings 1, four limiting modules 2, and one connecting module 3. Two limiting modules 2 are symmetrically arranged in a plane within the ring 1. Both the rings 1 and the connecting module 3 are mounted on the cable. The connecting module 3 is positioned between the two rings 1 at a fixed distance, and the limiting modules 2 between the two rings 1 are all on the same plane.

[0029] Ring 1, refer to Figure 4 The ring sleeve 1 has a hole at its center to accommodate a cable passing through. Two mounting slots for fixing brackets and two mounting slots for fixing plates are symmetrically arranged on a plane. The two mounting slots for fixing brackets are located at the top of the ring sleeve 1, and the two mounting slots for fixing plates are located on the same side of the ring sleeve 1. A groove for accommodating a connecting shaft 205 is provided between the mounting slots for fixing brackets and the mounting slots for fixing plates. Flexible shaft mounting seats 101 are symmetrically arranged on a plane perpendicular to the mounting slots for fixing brackets and the mounting slots for fixing plates on the ring sleeve 1. Both ends of the flexible shaft 301 can be installed within the flexible shaft mounting seats 101.

[0030] The limiting module 2 is disposed within the mounting slots of the fixing frame and the fixing plate of the ring sleeve 1. The limiting module 2 includes a wheel 201, a support spring 202, a fixing plate 203, a fixing frame 204, a connecting shaft 205, and a sliding rod 206. The connecting shaft 205 is located at the rear bottom of the fixing frame 204, and the fixing frame 204 and the connecting shaft 205 are connected by a shaft. The rear top of the fixing plate 203 is connected to the connecting shaft 205, fixing the connecting shaft 205 below the fixing plate 203. The connecting shaft 205 and the fixing frame 204 form a single unit disposed within the mounting slots of the fixing frame and the connecting shaft. The other end of the connecting shaft 205 is connected to the fixing plate 203. During installation, the fixing plate 203 can be placed in the mounting groove inside the ring 1 first, and then the fixing bracket 204 and the connecting shaft 205 can be installed in the fixing bracket mounting groove outside the ring 1. After installation, the connecting shaft 205 is connected to the fixing plate 203. The connecting shaft 205 and the fixing plate 203 are connected by fixing pins or fixing screws.

[0031] The inner side of the fixing frame 204 of the limiting module 2 is provided with a support spring 202, a wheel 201, and a sliding rod 206 with one end inserted into the inner side of the fixing frame 204. The inner side of the fixing frame 204 is a hollow structure. An opening is provided at the top of the short side of the fixing frame 204, and an inclined surface is provided at the bottom of the inner side of the fixing frame 204 to cooperate with the opening on the side of the fixing frame. The support spring 202 is fixed on the inclined surface of the bottom of the inner side of the fixing frame 204 at one end, and the other end is connected to the wheel 201. The angle between the support spring 202 and the wheel 201 remains unchanged. A portion of the sliding rod 206 is inserted into the inner side of the fixing frame 204 through the opening on the side of the fixing frame 204 and is connected to the wheel 201. The support spring 202 provides elastic force to the wheel 201, and under the action of the support spring 202, the wheel 201 remains in a compressed state.

[0032] The lower half of the fixing frame 204 is located inside the ring 1, and the upper half of the fixing frame 204 is located outside the ring 1. The inner side of the fixing frame 201 is a hollow structure, with an opening at the top to accommodate the sliding rod 206. Grooves are provided on both sides of the top opening to restrict the movement of the sliding rod 206, allowing the sliding rod 206 to move along the grooves within the fixing frame 204. The sliding rod 206 has a T-shaped structure, with a wheel 201 at one end of the T. Circular bosses are symmetrically arranged at both ends of the T. The sliding rod 206 interacts with the grooves on both sides of the fixing frame 206 through the bosses on the sliding rod 206, restricting the path of the sliding rod 206 within the grooves of the fixing frame 204.

[0033] Connecting module 3, refer to Figure 3 The connecting module 3 includes a flexible shaft 301, an adjusting nut 302, a connector 303, a connecting block 304, and a sliding rod mounting base 305. The connecting block 304 has a hole in the middle to accommodate a cable. Two connectors 303 are symmetrically arranged in one plane of the connecting block 304. Each connector 303 has a channel to accommodate the flexible shaft 301, and two adjusting nuts 302 are located at the top of the channel. Four sliding rod mounting bases 305 are located on a plane perpendicular to the connectors 303. The end of the sliding rod 206 without a boss is connected to one of the sliding rod mounting bases 305.

[0034] Reference Figure 6 One side of the fixing frame 204 is detachable. When installing the support spring 202, wheel 201, and sliding rod 206, the side plate of the fixing frame 204 needs to be removed. After fixing the positions of the support spring 202, wheel 201, sliding rod 206, and connecting shaft 205, the side plate of the fixing frame 204 is installed. The support spring 202 provides thrust, restricting the wheel 201 to the top of the fixing frame 204. The connecting shaft 205 is connected to the fixing frame 204 by a pin or other fixing method; in this embodiment, a pin connection is used for connection and fixation.

[0035] After the fixing bracket 204 and the connecting shaft 205 are installed inside the ring sleeve 1, the fixing plate 203 is installed. The other end of the connecting shaft 205 is connected and fixed to the fixing plate 203. The fixing plate 203 and the connecting shaft 205 are connected and fixed by means of shaft or glue. In this embodiment, glue is used for fixing.

[0036] After the four limiting modules are installed on the ring sleeve 1, two ring sleeves 1 and one connecting module 3 are set on the cable to be protected. After the connecting module 3 is fixed on the cable at the position to be protected, the end of the sliding rod 206 without the boss is set in the sliding rod mounting seat 305.

[0037] The middle section of the flexible shaft 301 is made of rigid material, and two holes for accommodating adjusting nuts 302 are provided on the surface of the middle section. The upper and lower sections of the flexible shaft 301 are made of flexible material, allowing it to be bent in all directions. Both ends of the flexible shaft 301 are respectively mounted in flexible shaft mounting seats on two ring sleeves 1. The sliding rod 206 is length-adjustable, and a spring is installed inside the sliding rod 206 to limit its length to a fixed value.

[0038] The working principle of this invention is as follows.

[0039] A cable bend protection device is installed on the cable. After the cable is placed in the working area, it will deflect when subjected to some external force. The cable bend protection device can protect the cable from bending beyond the minimum bending radius.

[0040] When the cable deflects and bends, it causes a change in the flexible shaft 301 where the adjusting nut 302 is located. The flexible shaft 301 deflects in the direction of the cable bend. After the cable deflects, the lengths of the sliding rods 206 all change. The lengths of the two sliding rods 206 on the inner side decrease, at which point the two inner sliding rods 206 provide a certain elastic force. The lengths of the two sliding rods 206 on the outer side increase, at which point the two outer sliding rods 206 provide a certain tensile force, and the support spring 202 installed in the fixing frame 204 on the outer side is compressed by the force of the sliding rods 206.

[0041] The cable bending protection device uses multiple springs to prevent the cable from bending under a certain amount of external force. When the external force exceeds the cable bending protection device's capacity, the sliding rod 206 and flexible shaft 301 transmit the force, preventing the cable from bending in one place. After the force acting on the cable is released, the cable bending protection device can bend the cable back to its starting position or allow it to move back to that position on its own.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and various changes and modifications can be made without departing from the spirit and scope of the invention, all of which fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cable bending protection device, comprising: A limiting structure set on the surface of the cable. Its features are: The limiting structure consists of two rings, four limiting modules, and one connecting module. Both the loop and the connecting module are disposed on the cable surface. The connecting module has loops spaced apart at both ends. Two limiting modules are symmetrically arranged on a plane for each loop. The connecting module is provided with two flexible shafts, an adjusting nut, a connector, and a connecting block. The connecting block is disposed on the surface of the cable, and the flexible shaft is disposed on the surface of the connecting block. The two ends of the flexible shaft are connected to the ring sleeve through the connector, and the adjusting nut is disposed in the middle of the flexible shaft. The limiting module consists of a wheel, a support spring, a fixing plate, and a fixing frame. The limiting module is set on a plane perpendicular to the connecting module. The fixing plate is connected and fixed to the fixing frame along the outer side of the ring via a shaft. The support spring and the wheel are arranged on the inner side of the fixing frame. The wheel is connected to the connecting block via a sliding rod.

2. The cable bending protection device according to claim 1, characterized in that: The lower end of the fixing frame is located inside the ring sleeve, and the upper end of the fixing frame is located outside the ring sleeve.

3. The cable bending protection device according to claim 1, characterized in that: The support spring limits the wheel to the upper inner side of the fixed frame.

4. The cable bending protection device according to claim 1, characterized in that: The upper end of the fixed frame is provided with a notch to accommodate the sliding rod, the sliding rod can move horizontally within the notch, and the sliding rod can adjust the position of the wheel inside the fixed frame.

5. A cable bending protection device according to any one of claims 1-4, characterized in that: The sliding rod is retractable.

6. A cable bending protection device according to claim 1, characterized in that: A spring is installed inside the sliding rod.

7. A cable bending protection device according to claim 1, characterized in that: The flexible shaft can be bent in all directions.

8. A cable bending protection device according to claim 1, characterized in that: The flexible axis is symmetrically arranged at both ends of the connecting block.

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