Reel cable reversing protection device

Abstract

The utility model discloses a reel cable reversing protection device which comprises a box body, rotating shafts are arranged on two sides of the box body, two cover plates are hinged to the top of the box body, a plurality of guide rods are evenly and fixedly connected to two sides in the box body, buffer plates are connected to the guide rods in a sliding mode, and first buffer springs are arranged between the buffer plates and the bottom of the box body. The first buffer spring sleeves the guide rod; the buffer plate is fixedly connected with a cable fixing device, the center of the cable fixing device is provided with a wire duct, and the bottom of the box body, the buffer plate and the cover plate are provided with through holes for cables to pass through. The protection device has a buffer effect, can reduce the tension on the cable during reversing and the fatigue strength during bending, protects the cable, and prolongs the service life of the cable.

Description

Technical Field

[0001] This utility model relates to the field of cable protection equipment technology, and in particular to a reel cable reversing protection device. Background Technology

[0002] When using cable reels to supply power to distant power points, it is sometimes necessary to reverse the cable direction to meet the power needs of multiple points. Conventional cable reversing devices can only bend the cable back and forth, which can easily cause the cable to break, leading to insulation failure and, in severe cases, cable breakage. Such cable reversing devices pose certain safety hazards and are not conducive to cable protection. Utility Model Content

[0003] The purpose of this invention is to provide a cable reversing protection device. This protection device has a buffering effect, which can reduce the tension on the cable during reversal and the fatigue strength during bending, thereby protecting the cable and extending its service life.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a reversing protection device for a reel cable, comprising a housing, rotating shafts on both sides of the housing, two cover plates hinged to the top of the housing, a plurality of guide rods uniformly fixedly connected to both sides inside the housing, buffer plates slidably connected to the guide rods, a first buffer spring provided between the buffer plate and the bottom of the housing, the first buffer spring being sleeved on the guide rod; a cable fixing device fixedly connected to the buffer plate, a wire groove provided at the center of the cable fixing device, and through holes for cables to pass through provided at the bottom of the housing, the buffer plate, and the cover plates.

[0005] Optionally, a support plate is fixedly connected to the top of the guide rod, and a second buffer spring is provided between the buffer plate and the support plate. The second buffer spring is sleeved on the guide rod, and when the cover is closed, the support plate is in contact with the bottom of the cover.

[0006] Optionally, a displacement sensor is installed at the bottom of the support plate.

[0007] Optionally, the cable fixing device includes two semi-circular fixing plates, with connecting plates fixedly connected to the edges of the fixing plates. The connecting plates are locked together by bolts and nuts. A connecting flange is provided at the bottom of the fixing plate, and the connecting flange is locked together with the buffer plate by bolts and nuts.

[0008] Optionally, a buffer layer is provided on the inner side of the fixing plate.

[0009] The reel cable reversing protection device of this utility model has the following advantages:

[0010] (1) The box is rotated at the reversing point and plays the main role of reversing. When reversing, the operator pulls the cable, which will cause the buffer plate to slide inside the box. The tension on the cable will be offset by the elastic force of the first buffer spring, avoiding excessive force and damage to the cable. When reversing, the cable has a certain amount of space to move in the length direction, so that when the cable is bent, the stress concentration is reduced, avoiding fatigue fracture of the cable and ensuring the normal operation of power supply.

[0011] (2) The displacement sensor can measure the displacement distance of the buffer plate, thereby obtaining the magnitude of the tension on the cable. When the tension is too large, it will promptly provide a feedback signal to avoid causing significant damage to the cable.

[0012] (3) The two fixing plates are detachable, which facilitates the installation, disassembly and maintenance of the cable fixing device. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a top view of the present invention. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] like Figures 1-2 As shown, a reversing protection device for a reel cable includes a housing 1. Rotating shafts 2 are located on both sides of the housing 1, hinged at the reversing points, allowing the housing 1 to rotate as a whole. The top of the housing 1 is open, with cover plates 3 hinged to both sides of the top. Several guide rods 4 are evenly fixedly connected to both sides inside the housing 1. Support plates 5 are fixedly connected to the top of the guide rods 4. When the cover plates 3 are closed, the support plates 5 are in contact with the bottom of the cover plates 3, providing support. A buffer plate 6 is slidably connected to the guide rods 4. A first buffer spring 7 is located between the buffer plate 6 and the bottom of the housing 1, and a second buffer spring 8 is located between the buffer plate 6 and the support plate 5. Both the first and second buffer springs 7 and 8 are sleeved on the guide rods 4. A displacement sensor 9 is installed at the bottom of the support plate 5, measuring the sliding distance of the buffer plate 6 to obtain the deformation of the first and second buffer springs 7 and 8.

[0017] A cable fixing device is fixedly connected to the buffer plate 6. The cable fixing device includes two semi-circular fixing plates 10. A cable groove 11 is provided on the inner side of the fixing plate 10. A buffer layer 12 is provided inside the cable groove 11. The buffer layer 12 is made of rubber, which can not only protect the cable, but also has a large coefficient of friction, thus providing a good fixing effect for the cable. A connecting plate 13 is fixedly connected to the edge of the fixing plate 10. The connecting plates 13 are locked together by bolts and nuts. A connecting flange 14 is provided at the bottom of the fixing plate 10. The connecting flange 14 is locked to the buffer plate 6 by bolts and nuts. A cable groove 11 is provided at the center of the cable fixing device. Through holes 15 for cables to pass through are provided on the bottom of the box 1, the buffer plate 6, and the cover plate 3.

[0018] After the cable passes through the through hole 15, the fixing plate 10 is clamped on both sides of the cable to secure it. The fixing plate 10 is then fixedly connected to the buffer plate 6, and finally the cover 3 is closed. The detachable structure of the fixing plate 10 facilitates cable installation and maintenance. When the cable reverses direction, it causes the entire housing 1 to rotate. When the operator pulls the cable, the buffer plate 6 slides within the housing 1, causing deformation of the first buffer spring 7 and the second buffer spring 8. This deformation generates elastic force in the first and second buffer springs 7 and 8, counteracting the tension on the cable. The displacement sensor 9 measures the movement distance of the buffer plate 6, thus obtaining the deformation of the first and second buffer springs 7 and 8. The displacement sensor 9 transmits the data back to the controller, which calculates the tension on the cable based on the measurement data. If the tension exceeds a set value, an alarm is issued to prevent excessive force from damaging the cable. During the cable bending process, due to the presence of the first buffer spring 7 and the second buffer spring 8, the cable has a certain amount of movement space in its length direction. The cable bending space is larger, which can reduce stress concentration, avoid fatigue fracture of the cable, and ensure the normal operation of power supply.

[0019] The embodiments described above are merely some embodiments of this utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the protection scope of this utility model.

Claims

1. A reel cable reversing protection device, characterized in that: The enclosure includes a housing with rotating shafts on both sides. Two cover plates are hinged to the top of the housing. Several guide rods are evenly fixedly connected to both sides inside the housing. Buffer plates are slidably connected to the guide rods. A first buffer spring is installed between the buffer plate and the bottom of the housing and is sleeved on the guide rod. A cable fixing device is fixedly connected to the buffer plate. A cable groove is provided in the center of the cable fixing device. Through holes for cables to pass through are provided on the bottom of the housing, the buffer plate, and the cover plates.

2. The cable reversing protection device as described in claim 1, characterized in that: A support plate is fixedly connected to the top of the guide rod. A second buffer spring is installed between the buffer plate and the support plate. The second buffer spring is sleeved on the guide rod. When the cover is closed, the support plate is in contact with the bottom of the cover.

3. The cable reversing protection device as described in claim 2, characterized in that: A displacement sensor is installed at the bottom of the support plate.

4. The reel cable reversing protection device as described in claim 1, characterized in that: The cable fixing device includes two semi-circular fixing plates, with connecting plates fixedly connected to the edges of the fixing plates. The connecting plates are locked together by bolts and nuts. A connecting flange is provided at the bottom of the fixing plate, and the connecting flange is locked together with the buffer plate by bolts and nuts.

5. The cable reversing protection device as described in claim 4, characterized in that: A buffer layer is provided on the inside of the fixing plate.

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