Flexible power cable convenient to install

Abstract

The utility model provides a flexible power cable convenient to install, which can be connected with a shell of electrical equipment, and the shell is provided with a through hole. The flexible power cable convenient to install comprises a flexible cable and a corrugated pipe arranged outside the flexible cable in a sleeving mode. At least one end of the corrugated pipe is provided with a connecting part. The connecting part comprises a transfer pipe and a mounting piece; one end of the transfer pipe is connected with the end part of the corrugated pipe; the mounting piece comprises a sleeve, the sleeve and the adapter tube are both arranged outside the flexible cable in a sleeving manner, and the sleeve and the adapter tube are detachably connected; the sleeve is used for being inserted into a through hole in the shell; a flange part is arranged on the outer wall of the sleeve in a protruding mode, and the flange part is used for abutting against the outer wall of the shell and is fixed to the shell. According to the flexible power cable convenient to install, the corrugated pipe can be conveniently connected with the shell of the electrical equipment, and the sealing performance between the corrugated pipe and the flexible cable and the sealing performance between the corrugated pipe and the shell of the electrical equipment are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to cable structure technical field especially is related to a flexible power cable convenient to installation. BACKGROUND

[0002] The flexible power cable is a kind of commonly used cable, it is widely used in power transmission, data transmission, communication control etc. scene.Currently commonly used flexible power cable generally includes outer protective layer (i.e. armored layer) and the multiple core wires of setting in outer protective layer.In part application scene (for example, in outdoor application scene), in order to improve the waterproof dustproof, weather resistance etc. of flexible power cable, a layer of bellows is generally set on the flexible power cable to protect the flexible power cable (specifically can refer to CN222338948U etc. patent).

[0003] At present, when connecting flexible power cable and electrical equipment, for example, when connecting flexible power cable and distribution box, flexible power cable needs to pass through the shell of distribution box and be electrically connected with the element in distribution box;Since the end of bellows is not provided with the structure for connecting with shell, when flexible power cable is provided with bellows, bellows is difficult to be connected and assembled with shell, not only reduces installation efficiency, but also affects the sealing between bellows and flexible power cable and the sealing of shell of distribution box (if bellows is not connected with shell, external rain, dust etc. can easily enter between bellows and flexible power cable and inside the shell of distribution box). CONTENT OF UTILITY MODEL

[0004] The utility model aims at providing a flexible power cable convenient to installation, it can connect the shell of electrical equipment with bellows, and guarantee the sealing between bellows and flexible cable and the shell of electrical equipment.

[0005] The utility model provides a flexible power cable convenient to installation, it can be connected with the shell of electrical equipment, the shell is equipped with through -hole;The flexible power cable convenient to installation includes flexible cable and the bellows of setting in the flexible cable outside, at least one end of the bellows is equipped with connecting portion;

[0006] The connecting portion includes adapter pipe and mounting piece, one end of the adapter pipe is connected with the end of the bellows;The mounting piece includes sleeve pipe, the sleeve pipe and the adapter pipe are all set in the flexible cable outside, and the sleeve pipe and the adapter pipe are detachably connected;

[0007] The sleeve pipe is used for inserting into the through -hole on the shell;Flange portion is protruded on the outer wall of the sleeve pipe, and the flange portion is used for abutting with the outer wall of the shell and being fixed with the shell.

[0008] In an implementable mode, the adapter pipe is integrally connected with the bellows pipe, and the inner wall and the outer wall of the adapter pipe are flat structures.

[0009] In an implementable mode, the sleeve pipe comprises a first pipe segment and a second pipe segment which are integrally connected, the first pipe segment is sleeved with the adapter pipe, and the first pipe segment is detachably connected with the adapter pipe; the second pipe segment is located on the side of the first pipe segment away from the adapter pipe, and is used for being inserted into the through hole on the shell; and the flange part is located between the first pipe segment and the second pipe segment.

[0010] In an implementable mode, the mounting part further comprises a clamp, the clamp is sleeved outside the first pipe segment and outside the adapter pipe, and the first pipe segment and the adapter pipe are fixed by the clamp.

[0011] In an implementable mode, the first pipe segment and the adapter pipe are connected by threads.

[0012] In an implementable mode, a sealing layer is clamped between the first pipe segment and the adapter pipe.

[0013] In an implementable mode, the mounting part further comprises a fastening nut, the outer wall of the second pipe segment is provided with external threads, and the fastening nut is connected with the second pipe segment by threads; and the fastening nut is used for cooperating with the flange part to clamp the shell between the fastening nut and the flange part.

[0014] In an implementable mode, a sealing gasket is sleeved on the second pipe segment, and the sealing gasket is used for being clamped between the flange part and the outer wall of the shell.

[0015] In an implementable mode, the flange part is provided with a first screw hole, and the first screw hole is used for fixing the flange part and the shell by a screw.

[0016] In an implementable mode, the difference between the inner diameter of the sleeve pipe and the inner diameter of the bellows pipe is not more than 3 mm.

[0017] The flexible power cable convenient to install has the advantages that the bellows pipe is sleeved outside the flexible cable, the bellows pipe can protect the flexible cable, and the waterproof and dustproof performance and weather resistance of the flexible cable are improved; and the bellows pipe has good flexibility and bending resistance, so that the bending of the flexible cable is not affected.

[0018] Meanwhile, by providing a connecting part at the end of the corrugated pipe, the connecting part includes an adapter pipe and an mounting component. The mounting component includes a sleeve with a flange protruding from its outer wall. During installation, simply insert the sleeve into the through hole on the housing, allowing the flange to abut against the outer wall of the housing and fix the flange to the housing, thus achieving a sealed connection between the mounting component and the housing of the electrical equipment. This installation structure not only facilitates the connection between the corrugated pipe and the housing of the electrical equipment but also ensures the sealing between the corrugated pipe and the flexible cable, as well as between the corrugated pipe and the housing of the electrical equipment, thereby guaranteeing the airtightness of the electrical equipment housing.

[0019] Meanwhile, since the sleeve and the adapter are detachably connected, it is not only convenient to disassemble and replace the installation parts, but also to replace different types of installation parts according to different usage scenarios, thereby meeting the installation needs of different electrical equipment and improving the versatility of flexible power cables. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of a flexible power cable that is easy to install, as described in this utility model embodiment.

[0021] Figure 2 for Figure 1 A partial cross-sectional schematic diagram.

[0022] Figure 3 This is a schematic diagram of the assembly structure of the mounting component and the housing in an embodiment of this utility model.

[0023] Figure 4 This is a partial cross-sectional schematic diagram of a flexible power cable that is easy to install, according to another embodiment of the present invention.

[0024] Figure 5 for Figure 4 A schematic diagram of the assembly structure of the mounting components and the housing.

[0025] Figure 6 This is a partial cross-sectional schematic diagram of a flexible power cable that is easy to install, according to another embodiment of the present invention.

[0026] Figure 7 This is a schematic diagram of the assembly structure of the mounting component and the housing in another embodiment of the present invention. Detailed Implementation

[0027] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0028] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification and claims of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0029] The directional terms such as "up," "down," "left," "right," "front," "back," "top," and "bottom" (if present) used in the specification and claims of this utility model are defined according to the position of the structures in the drawings and the relative positions of the structures, and are only for the purpose of clarity and convenience in expressing the technical solution. It should be understood that the use of directional terms should not limit the scope of protection claimed by this utility model.

[0030] like Figures 1 to 3 As shown, this embodiment of the present invention provides a flexible power cable that is easy to install and can be connected to the housing 5 of an electrical device. The housing 5 has a through hole 51. The electrical device can be, for example, an electrical box (generally an electrical device with a housing or enclosure). The easy-to-install flexible power cable includes a flexible cable 1 and a corrugated tube 2 sleeved on the flexible cable 1. The flexible cable 1 includes an insulation layer (not shown; the insulation layer is generally made of rubber) and a core wire (not shown) disposed within the insulation layer. The corrugated tube 2 is generally a plastic corrugated tube (e.g., a corrugated tube made of polyethylene, polypropylene, etc.). The structure of the corrugated tube 2 can be found in the prior art and will not be described in detail here.

[0031] At least one end of the corrugated pipe 2 is provided with a connecting part M. The connecting part M includes an adapter pipe 3 and a mounting member 4, one end of the adapter pipe 3 being connected to the end of the corrugated pipe 2. The mounting member 4 includes a sleeve 41, both the sleeve 41 and the adapter pipe 3 being sleeved over the flexible cable 1, and the end of the flexible cable 1 extending out of the sleeve 41; the sleeve 41 and the adapter pipe 3 are detachably connected.

[0032] The sleeve 41 is used to be inserted into the through hole 51 on the housing 5; a flange 42 is provided on the outer wall of the sleeve 41 (that is, the flange 42 is formed by the outer wall of the sleeve 41 protruding radially outward), the flange 42 is a disc-shaped structure, and the flange 42 is used to abut against the outer wall of the housing 5 and be fixed to the housing 5.

[0033] The flexible power cable provided in this embodiment of the utility model is easy to install. By installing a corrugated tube 2 over the flexible cable 1, the corrugated tube 2 can protect the flexible cable 1 and improve the waterproof, dustproof, and weather-resistant properties of the flexible cable 1. Moreover, since the corrugated tube 2 has good flexibility and bending resistance, it does not affect the bending of the flexible cable 1.

[0034] Meanwhile, by providing a connecting part M at the end of the corrugated pipe 2, the connecting part M includes a transfer pipe 3 and a mounting component 4. The mounting component 4 includes a sleeve 41, and a flange 42 protrudes from the outer wall of the sleeve 41. During installation, simply insert the sleeve 41 into the through hole 51 on the housing 5, so that the flange 42 abuts against the outer wall of the housing 5 and is fixed to the housing 5, thus achieving a sealed connection between the mounting component 4 and the housing 5 of the electrical equipment. This installation structure not only facilitates the connection between the corrugated pipe 2 and the housing 5 of the electrical equipment, but also ensures the sealing between the corrugated pipe 2 and the flexible cable 1, as well as between the corrugated pipe 2 and the housing 5 of the electrical equipment, thereby ensuring the sealing of the housing 5 of the electrical equipment (because the flange 42 abuts against the outer wall of the housing 5, external moisture, dust, etc., will not enter the housing 5 through the gap between the sleeve 41 and the inner wall of the through hole 51).

[0035] Meanwhile, since the sleeve 41 and the adapter pipe 3 are detachably connected, it is not only convenient to disassemble and replace the mounting part 4, but also to replace different types of mounting parts 4 according to different usage scenarios, thereby meeting the installation requirements of different electrical equipment and improving the versatility of flexible power cables.

[0036] like Figures 1 to 3 As shown, in one embodiment, the adapter pipe 3 and the corrugated pipe 2 are integrally connected, that is, the adapter pipe 3 and the corrugated pipe 2 are an integral structure (the adapter pipe 3 and the corrugated pipe 2 can be integrally molded by injection molding). The inner and outer walls of the adapter pipe 3 are both flat structures (that is, the adapter pipe 3 is a smooth tubular structure), that is, the adapter pipe 3 is not a corrugated structure with unevenness like the corrugated pipe 2, which facilitates the assembly and connection of the sleeve 41 and the adapter pipe 3.

[0037] like Figure 1 As shown, in one embodiment, the bellows 2 has connecting portions M at both opposite ends, so that both ends of the bellows 2 can be connected to electrical equipment through the connecting portions M. Of course, in other embodiments, the connecting portion M may only be provided at one end of the bellows 2.

[0038] like Figures 1 to 3 As shown, in one embodiment, both the sleeve 41 and the corrugated pipe 2 are circular pipes. The difference between the inner diameter of the sleeve 41 and the inner diameter a of the corrugated pipe 2 (specifically, the inner diameter a of the corrugated pipe 2 refers to the minimum inner diameter of the corrugated pipe 2, i.e., the inner diameter at the corresponding trough position of the corrugated pipe 2) does not exceed 3mm, meaning that the inner diameter of the sleeve 41 and the inner diameter a of the corrugated pipe 2 are close. This arrangement ensures that when the outer diameter of the flexible cable 1 is close to the inner diameter a of the corrugated pipe 2, the inner diameter of the sleeve 41 is also close to the outer diameter of the flexible cable 1, allowing the sleeve 41 and the flexible cable 1 to fit tightly together, improving the connection stability between the sleeve 41 and the flexible cable 1 (and preventing the sleeve 41 from shifting relative to the flexible cable 1).

[0039] like Figures 1 to 3 As shown, in one embodiment, the sleeve 41 includes an integrally connected first pipe section 411 and second pipe section 412, with the same inner diameter of the first pipe section 411 and the second pipe section 412. The first pipe section 411 is sleeved with the adapter pipe 3, and the first pipe section 411 and the adapter pipe 3 are detachably connected; the second pipe section 412 is located on the side of the first pipe section 411 away from the adapter pipe 3, and the second pipe section 412 is used to be inserted into the through hole 51 on the housing 5; the flange portion 42 is located between the first pipe section 411 and the second pipe section 412. The mounting component 4 also includes a clamp 43, which is sleeved on the outside of the first pipe section 411 and the adapter pipe 3, and the first pipe section 411 and the adapter pipe 3 are fixed by the clamp 43.

[0040] Specifically, in this embodiment, the adapter pipe 3 is sleeved outside the first pipe section 411, and the clamp 43 is sleeved outside the adapter pipe 3. When assembling the sleeve 41 and the adapter pipe 3, simply connect the first pipe section 411 to the adapter pipe 3 first, and then use the clamp 43 to secure the first pipe section 411 and the adapter pipe 3 together. In another embodiment, the first pipe section 411 and the adapter pipe 3 can also be connected by threads. For example, an external thread can be provided on the outer wall of the first pipe section 411, and an internal thread can be provided on the inner wall of the adapter pipe 3. The external thread and the internal thread are screwed together to achieve a threaded connection between the first pipe section 411 and the adapter pipe 3. Of course, in other embodiments, the first pipe section 411 and the adapter pipe 3 can also be detachably connected in other ways.

[0041] like Figures 1 to 3 As shown, in one embodiment, the mounting component 4 also includes a fastening nut 45. The outer wall of the second pipe section 412 is provided with an external thread 410, and the fastening nut 45 is threadedly connected to the second pipe section 412 (the inner wall of the fastening nut 45 is provided with an internal thread). The fastening nut 45 is used to cooperate with the flange portion 42 to clamp the housing 5 between the fastening nut 45 and the flange portion 42.

[0042] Specifically, the fastening nut 45 and the sleeve 41 are preferably made of insulating material (the sleeve 41 and the fastening nut 45 can be made of polyethylene, polypropylene, etc.) to ensure the insulation between the mounting part 4 and the housing 5. During installation, simply assemble the sleeve 41 and the adapter pipe 3 first, then insert the end of the flexible cable 1 and the second pipe section 412 of the sleeve 41 together into the through hole 51 on the housing 5 (that is, the end of the flexible cable 1 and the second pipe section 412 of the sleeve 41 extend into the housing 5), and make the flange part 42 abut against the outer wall of the housing 5. Then screw the fastening nut 45 onto the second pipe section 412, and make the housing 5 tightly clamped between the fastening nut 45 and the flange part 42, so that the fastening nut 45 and the flange part 42 are fixed to the housing 5, thus fixing the mounting part 4 to the housing 5.

[0043] like Figure 4 and Figure 5 As shown, in another embodiment, the flange 42 is provided with a first screw hole 421, which is used to fix the flange 42 to the housing 5 by screws 47. Specifically, the housing 5 is provided with a second screw hole 52 (both the inner walls of the first screw hole 421 and the second screw hole 52 are threaded). During installation, it is only necessary to first assemble the sleeve 41 and the adapter pipe 3, then insert the end of the flexible cable 1 and the second pipe section 412 of the sleeve 41 together into the through hole 51 on the housing 5, and make the flange 42 abut against the outer wall of the housing 5. Then, the flange 42 and the housing 5 are fixed by screws 47, so that the mounting part 4 is fixed to the housing 5.

[0044] like Figure 6 As shown, in another embodiment, a sealing layer 44 is sandwiched between the first pipe section 411 and the transfer pipe 3, thereby further improving the sealing performance between the first pipe section 411 and the transfer pipe 3 and preventing external moisture, dust, etc. from entering between the flexible cable 1 and the corrugated pipe 2. The sealing layer 44 can specifically be PTFE tape, a sealing ring, a sealing adhesive layer, etc.

[0045] like Figure 7 As shown, in another embodiment, a sealing gasket 46 is fitted on the second pipe section 412. The sealing gasket 46 is used to clamp between the flange 42 and the outer wall of the housing 5, thereby further improving the sealing between the flange 42 and the housing 5 and preventing external moisture, dust and other substances from entering the housing 5 through the gap between the sleeve 41 and the inner wall of the through hole 51.

[0046] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A flexible power cable for easy installation, capable of being connected to a housing (5) of an electrical device, said housing (5) being provided with a through hole (51), characterized in that, The flexible power cable convenient to install comprises a flexible cable (1) and a bellows (2) sleeved outside the flexible cable (1), at least one end of the bellows (2) is provided with a connecting part (M); The connecting part (M) comprises an adapter pipe (3) and a mounting part (4), one end of the adapter pipe (3) is connected with the end of the bellows (2); the mounting part (4) comprises a sleeve pipe (41), the sleeve pipe (41) and the adapter pipe (3) are both sleeved outside the flexible cable (1), and the sleeve pipe (41) is detachably connected with the adapter pipe (3); The sleeve pipe (41) is used for being inserted into a through hole (51) on the shell (5); a flange part (42) is protruded on the outer wall of the sleeve pipe (41), and the flange part (42) is used for abutting against and fixing with the outer wall of the shell (5).

2. The flexible power cord for easy installation of claim 1, wherein, The adapter pipe (3) is integrally connected with the bellows (2), and the inner wall and the outer wall of the adapter pipe (3) are both flat structures.

3. The flexible power cord for easy installation of claim 1, wherein, The sleeve pipe (41) comprises a first pipe segment (411) and a second pipe segment (412) which are integrally connected, the first pipe segment (411) is sleeved with the adapter pipe (3), and the first pipe segment (411) is detachably connected with the adapter pipe (3); the second pipe segment (412) is located on the side of the first pipe segment (411) away from the adapter pipe (3), and the second pipe segment (412) is used for being inserted into the through hole (51) on the shell (5); and the flange part (42) is located between the first pipe segment (411) and the second pipe segment (412).

4. The flexible power cord for easy installation of claim 3, wherein, The mounting part (4) further comprises a clamp (43), the clamp (43) is sleeved outside the first pipe segment (411) and outside the adapter pipe (3), and the first pipe segment (411) and the adapter pipe (3) are fixed by the clamp (43).

5. The flexible power cord for easy installation of claim 3, wherein, The first pipe segment (411) and the adapter pipe (3) are connected by threads.

6. The flexible power cord for easy installation of claim 3, wherein, A sealing layer (44) is clamped between the first pipe segment (411) and the adapter pipe (3).

7. The flexible power cord for easy installation of claim 3, wherein, The mounting part (4) further comprises a fastening nut (45), an outer thread (410) is arranged on the outer wall of the second pipe segment (412), the fastening nut (45) is connected with the second pipe segment (412) by threads; and the fastening nut (45) is used for cooperating with the flange part (42) to clamp the shell (5) between the fastening nut (45) and the flange part (42).

8. The flexible power cord for easy installation of claim 3, wherein, A sealing gasket (46) is sleeved on the second pipe segment (412), and the sealing gasket (46) is used for being clamped between the flange part (42) and the outer wall of the shell (5).

9. The flexible power cord for easy installation of claim 1, wherein, A first screw hole (421) is arranged on the flange part (42), and the first screw hole (421) is used for fixing the flange part (42) and the shell (5) by a screw (47).

10. The flexible power cord for easy installation of any one of claims 1-9, wherein, The difference between the inner diameter of the sleeve pipe (41) and the inner diameter of the bellows (2) is not more than 3 mm.

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