Protective device for power cable

Abstract

The utility model relates to the technical field of cable protection devices, and provides a power cable protection device which comprises a mounting rack and a plurality of protection shells mounted on the mounting rack, the mounting rack is mounted on a cable support, and the protection shells are detachably connected with the mounting rack; the protective shell jointly wraps two half shells on the outer wall of the cable, and rubber pads are arranged on the sides, close to each other, of the two half shells. One ends of the two half shells are hinged, and the other ends of the two half shells are connected through a connecting assembly. According to the protection device for the cable, the possibility that the cable is abraded on the cable support is reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of cable protection devices, in particular to a protection device for power cables. BACKGROUND

[0002] Power cables are cables used for transmitting and classifying electric energy, which are composed of single or multiple wires and insulation layers and are used for connecting circuits and electrical appliances. When the cables are laid, they are often laid on cable supports, which can bear, isolate and prevent moisture of the cables.

[0003] However, when the cables laid on the cable supports are touched and shaken, the cables are prone to rubbing against the cable supports, so that the contact positions of the cables and the cable supports are prone to wear, thereby reducing the service life of the cables. Therefore, a protection device for power cables is needed to reduce the wear of the cables and improve the service life of the cables. CONTENT OF THE INVENTION

[0004] In order to reduce the possibility of wear of the cables on the cable supports, the application provides a protection device for power cables.

[0005] The protection device for power cables provided by the application adopts the following technical scheme:

[0006] The protection device for power cables comprises a mounting frame and a plurality of protective shells mounted on the mounting frame, the mounting frame is mounted on a cable support, and the protective shells are detachably connected with the mounting frame; the protective shells are two half shells collectively wrapped on the outer wall of the cable, and the side of each of the two half shells close to each other is provided with a rubber pad; one end of each of the two half shells is hingedly connected, and the other end of each of the two half shells is connected through a connecting assembly.

[0007] Through the above technical scheme, the cooperation of the mounting frame and the cable support realizes the stable installation of the entire protection device, and the design of the protective shell makes it flexible to wrap the outer wall of the cable, which can effectively reduce the friction between the cable and the cable support due to shaking during laying, thereby avoiding the wear of the outer wall of the cable and significantly improving the service life of the cable; the setting of the rubber pad further reduces the risk of mechanical damage to the cable.

[0008] Optionally, the connecting assembly comprises a bolt and a nut, each of the two half shells is provided with a first mounting hole, the mounting frame is provided with a second mounting hole, and the bolt is arranged in the first mounting hole and the second mounting hole on one side and matched with the nut.

[0009] By adopting the technical scheme, the connecting assembly can not only realize the close connection of the free ends of the two half shells, but also stably install the protective shell on the mounting rack. This design effectively reduces the separate fixing steps, simplifies the overall installation process, and improves the operation efficiency. In addition, the cooperation of the bolt and the nut makes the installation process more convenient and reliable, and improves the practicality and stability of the device.

[0010] Optionally, the connecting assembly comprises a plug-in rod, an anti-disengagement plate, a fixing block and a spring, the anti-disengagement plate is fixed to one end of the plug-in rod; both of the half shells are provided with plug-in holes, and the mounting rack is provided with a plug-in slot, the plug-in rod is inserted into the plug-in holes and the plug-in slot in plug-in cooperation; the outer wall of the plug-in rod is provided with a movable slot, the fixing block is movably installed in the movable slot, and a fixing groove for the fixing block is formed in the plug-in slot; the two ends of the spring are connected with the fixing block and the inner wall of the plug-in slot respectively, and the elastic force of the spring is used to drive the fixing block to be inserted into the fixing groove in a normal state.

[0011] By adopting the technical scheme, not only the stable connection between the two half shells and the mounting rack can be realized, but also the installation and positioning of the two half shells can be completed synchronously. Specifically, in the process of inserting the plug-in rod into the plug-in hole and cooperating with the plug-in slot, the spring drives the fixing block to be clamped into the fixing groove, so as to quickly lock the position of the two half shells and avoid loosening or misplacement. This design effectively improves the assembly efficiency, ensures the overall stability of the protective device, reduces the wear of the cable caused by shaking, and prolongs the service life of the cable.

[0012] Optionally, the two ends of the plug-in slot are respectively penetrated through the upper and lower sides of the mounting rack, and when the anti-disengagement plate abuts against the upper wall of one of the half shells, the movable slot and the fixing groove are arranged opposite to each other.

[0013] By adopting the technical scheme, the two ends of the plug-in slot are respectively penetrated through the upper and lower sides of the mounting rack, which not only facilitates the operation and installation of the plug-in rod, but also effectively reduces the possibility of accumulation of sundries in the plug-in slot, thereby reducing the risk that the fixing block and the fixing groove cannot be normally inserted and cooperated due to the interference of sundries. At the same time, when the anti-disengagement plate abuts against the upper wall of one of the half shells, the movable slot and the fixing groove are arranged opposite to each other, which further ensures that the fixing block can be accurately inserted into the fixing groove, and improves the stability and reliability of the structure.

[0014] Optionally, the fixing block is provided with a guide surface for guiding the fixing block into the movable slot, and the anti-disengagement plate and the plug-in rod are detachably connected.

[0015] By adopting the technical scheme, when the protective shell needs to be disassembled, the anti-disassembly plate can be disassembled from the insertion rod first, and then the downward force is continuously applied to the insertion rod. In this process, the fixed block is guided by the guide surface and smoothly slides into the movable groove, so that the insertion rod moves further downward. This action can release the locking state between the fixed block and the fixed groove, and then realize the separation between the two half shells and between the two half shells and the mounting frame, so as to facilitate the replacement or adjustment of the position of the protective shell.

[0016] Optionally, one of the half shells is provided with a mounting block, and the mounting frame is provided with a mounting groove for inserting the mounting block.

[0017] By adopting the technical scheme, the cooperation of the mounting block and the mounting groove enables the half shell to be quickly and accurately positioned on the mounting frame, improving the assembly efficiency of the protective device.

[0018] Optionally, the mounting block is provided with a first magnetic sheet, and the mounting groove is provided with a second magnetic sheet matched with the first magnetic sheet.

[0019] By adopting the technical scheme, the cooperation of the first magnetic sheet and the second magnetic sheet between the mounting block of the protective shell and the mounting groove of the mounting frame realizes the adsorption connection. This design makes the installation of the protective shell more convenient, and the preliminary positioning and fixing can be completed without additional tools, improving the assembly efficiency. At the same time, the magnetic connection increases the connection stability between the protective shell and the mounting frame, to a certain extent, prevents the protective shell from loosening and falling off due to external vibration or impact, so as to better protect the power cable from wear and tear.

[0020] Optionally, the protective shell is provided with a temperature sensor.

[0021] By adopting the technical scheme, the temperature sensor in the protective shell can monitor the temperature change of the cable in real time during operation. This helps to timely find the abnormal heating phenomenon of the cable caused by overload or failure, so as to effectively prevent potential safety hazards and improve the stability and reliability of the entire power system. This design further improves the functionality of the protective device through the state monitoring of the cable temperature, and provides a strong guarantee for the safe operation of the cable.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. By providing the protective shell, the design of the protective shell enables it to flexibly wrap the outer wall of the cable, effectively reducing the friction between the cable and the cable support during laying due to shaking, thereby avoiding the wear of the outer wall of the cable and significantly improving the service life of the cable.

[0024] 2. By setting the connecting assembly, the connecting assembly can not only realize the close connection of the free ends of the two half shells, but also stably install the protective shell on the mounting frame at the same time; this design effectively reduces the steps of separate fixation, simplifies the overall installation process, and improves the operation efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a partial sectional view of Example 1;

[0026] Figure 2 is a partial enlarged view of a at Figure 1

[0027] Figure 3 is a partial sectional view of Example 2;

[0028] Figure 4 is a partial enlarged view of b at Figure 3

[0029] BRIEF DESCRIPTION OF DRAWINGS1, mounting frame; 11, mounting slot; 12, second mounting hole; 13, plug-in slot; 14, fixing slot; 2, protective shell; 21, half shell; 22, mounting block; 23, rubber pad; 24, first mounting hole; 25, plug-in hole; 3, connecting assembly; 31, bolt; 32, nut; 33, plug-in rod; 34, anti-drop plate; 35, fixing block; 36, spring; 37, guide surface; 38, movable slot. DETAILED DESCRIPTION

[0030] The application will be further described below in conjunction with the accompanying Figures 1-4 The application will be further described below in conjunction with the accompanying

[0031] Example 1:

[0032] The application discloses a protective device for power cable.

[0033] With reference to Figure 1 A protective device for power cable, comprising a mounting frame 1 and a plurality of protective shells 2, wherein the mounting frame 1 is used for being fixed on a cable support, and the protective shell 2 is detachably connected with the mounting frame 1. Specifically, the protective shell 2 is provided with a mounting block 22, and the mounting block 22 is provided with a first magnetic sheet; the mounting frame 1 is provided with a mounting slot 11 for plug-in of the mounting block 22, and the mounting slot 11 is provided with a second magnetic sheet matched with the first magnetic sheet, and the magnetic connection increases the connection stability between the protective shell 2 and the mounting frame 1, and to a certain extent, prevents the protective shell 2 from loosening and falling off due to external vibration or impact.

[0034] ​The protective shell 2 is composed of two half shells 21 capable of collectively wrapping the outer wall of the cable, each half shell 21 being made of metal alloy or engineering plastic and having high strength and durability, and the plug-in block being arranged on the outer layer of one of the half shells 21. One end of the two half shells 21 is connected in a hinged manner through a rotating shaft, and the other end of the two half shells 21 is connected through the connecting assembly 3.

[0035] In addition, rubber pads 23 are arranged on the side of the two half shells 21 close to each other, so as to avoid damage caused by direct contact of the cable. At the same time, a temperature sensor is arranged in the protective shell 2 to monitor the temperature change of the cable in real time and timely warn potential safety hazards; the temperature sensor can be in the form of a thermistor or an infrared temperature sensor, for example, an NTC type negative temperature coefficient thermistor, which has fast response speed, high sensitivity and can accurately detect local temperature abnormal fluctuations of the cable.

[0036] With reference to Figure 2 The connecting assembly 3 includes a bolt 31 and a nut 32 in this example, and the first mounting hole 24 is arranged in each half shell 21, and the second mounting hole 12 is arranged in the mounting rack 1, and the bolt 31 is sequentially threaded through the first mounting hole 24 and the second mounting hole 12 and is tightly fixed with the nut 32. The connecting assembly 3 not only can tightly connect the free ends of the two half shells 21, but also can stably mount the protective shell 2 on the mounting rack 1, thereby simplifying the overall mounting process and improving the operation efficiency. In addition, the plug-in groove 13 and the plug-in block are matched to facilitate the opposite arrangement of the first mounting hole 24 and the second mounting hole 12, thereby improving the mounting efficiency.

[0037] The implementation principle of the protective device for the power cable in Embodiment 1 is as follows:

[0038] The protective device not only realizes good protection of the cable and avoids excessive wear caused by external touching, but also takes into account the simple and convenient disassembly and assembly, thereby greatly facilitating the later maintenance work. The added temperature sensor can timely feedback the running state information of the cable, which is helpful to prevent the risk caused by overload or other faults in advance and ensure the safe and stable operation of the cable.

[0039] Embodiment 2:

[0040] The embodiment of the present application discloses a protective device for a power cable.

[0041] With reference to Figure 3 and Figure 4The difference between the embodiment 2 and the embodiment 1 is that the connecting assembly 3 comprises a plug rod 33, an anti-off plate 34, a fixing block 35 and a spring 36, the anti-off plate 34 is threadedly connected with one end of the plug rod 33, both of the two half shells 21 are provided with plug holes 25, the mounting rack 1 is provided with a plug slot 13, and both ends of the plug slot 13 are respectively penetrated through the upper and lower sides of the mounting rack 1, and one end of the plug rod 33 away from the anti-off plate 34 is inserted into the plug hole 25 and the plug slot 13.

[0042] With reference to Figure 4 The outer wall of the plug rod 33 is provided with a movable slot 38, the fixing block 35 is movably installed in the movable slot 38, and the plug slot 13 is provided with a fixing slot 14 for the plug of the fixing block 35, one side of the fixing block 35 away from the anti-off plate 34 is provided with a guide surface 37, one side of the fixing block 35 close to the anti-off plate 34 is provided with a reference surface, the distance between the fixing surface and the reference surface gradually decreases from the side close to the movable slot 38 to the side away from the movable slot 38, and the guide surface 37 is used for guiding the fixing block 35 to enter the movable slot 38.

[0043] Both ends of the spring 36 are respectively connected with the movable slot 38 and the fixing block 35, and the elastic force of the spring 36 is used for driving the fixing block 35 to move towards the side away from the movable slot 38 so as to be plugged into the fixing slot 14. When the anti-off plate is in contact with the surface of one of the two half shells 21, the movable slot 38 is just aligned with the fixing slot 14, so as to ensure the smooth operation.

[0044] When it is needed to disassemble the protective shell 2, the anti-off plate can be first disassembled from the plug rod 33, and then the downward force is continuously applied to the plug rod 33. In this process, the fixing block 35 will be smoothly slid into the movable slot 38 under the guiding action of the guide surface 37, so as to further move the plug rod 33 downwards. This action can release the locking state between the fixing block 35 and the fixing slot 14, and then realize the separation between the two half shells 21 and between the two half shells 21 and the mounting rack 1, so as to facilitate the replacement or adjustment of the position of the protective shell 2.

[0045] The implementation principle of the protective device for the power cable according to the embodiment 2 is as follows:

[0046] In the process of inserting the plug rod 33 into the plug hole 25 and cooperating with the plug slot 13, the spring 36 drives the fixing block 35 to be clamped into the fixing slot 14, so as to quickly lock the position of the two half shells 21, and avoid the loosening or misplacement of the two half shells 21. This design effectively improves the assembly efficiency, not only can realize the close connection of the free ends of the two half shells 21, but also can simultaneously stably install the protective shell 2 on the mounting rack 1, simplifies the overall installation process, and improves the operation efficiency.

[0047] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, and thus: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A protective device for power cables, characterized in that: The utility model provides a cable protection shell, including mounting frame (1) and install a plurality of protective shell (2) of mounting frame (1), mounting frame (1) is installed to cable support, protective shell (2) is detachably connected with mounting frame (1), two half shells (21) of protective shell (2) are collectively wrapped in the outer wall of cable, and rubber pad (23) is arranged on the side of two half shells (21) and each other is close, one end of two half shells (21) is hinged, and the other end of two half shells (21) is connected through connecting assembly (3).

2. A power cable protection device according to claim 1, characterized in that: Connecting assembly (3) includes bolt (31) and nut (32), and first installation hole (24) is formed in two half shells (21), second installation hole (12) is formed in mounting frame (1), and the side of bolt (31) is arranged in first installation hole (24) and second installation hole (12) and is matched with nut (32).

3. A power cable protection device according to claim 1, characterized in that: Connecting assembly (3) includes plug-in rod (33), anti-drop plate (34), fixed block (35) and spring (36), anti-drop plate (34) is fixed on one end of plug-in rod (33), plug-in hole (25) is formed in two half shells (21), plug-in slot (13) is formed in mounting frame (1), plug-in rod (33) is arranged in plug-in hole (25) and is matched with plug-in slot (13), movable slot (38) is formed in the outer wall of plug-in rod (33), fixed block (35) is movably installed in movable slot (38), fixed groove (14) is formed in plug-in slot (13) for the plug-in of fixed block (35), and the both ends of spring (36) are connected with fixed block (35) and the inner wall of plug-in slot (13) respectively, and the elasticity of spring (36) is used to drive fixed block (35) to be inserted in fixed groove (14) in normal state.

4. A power cable protection device according to claim 3, wherein: The both ends of plug-in slot (13) are respectively penetrated through the upper and lower sides of mounting frame (1), when anti-drop plate (34) abuts on the upper wall of one of half shells (21), movable slot (38) is arranged opposite to fixed groove (14).

5. A power cable protection device according to claim 4, wherein: Fixed block (35) is provided with guide surface (37) for guiding fixed block (35) to enter movable slot (38), and anti-drop plate (34) is detachably connected with plug-in rod (33).

6. A power cable protection device according to claim 1, characterized in that: One of half shells (21) is provided with mounting block (22), and mounting slot (11) is formed in mounting frame (1) for the plug-in of mounting block (22).

7. A power cable protection device according to claim 6, wherein: Mounting block (22) is provided with first magnetic sheet, and second magnetic sheet is arranged in mounting slot (11) and matched with first magnetic sheet.

8. A power cable protection device according to claim 1, characterized in that: Temperature sensor is arranged in protective shell (2).

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