Inner and outer layer pressure-resistant flexible cable

Abstract

The application provides an inner and outer layer pressure-resistant flexible cable, which comprises an inner protective layer, an electric unit, an outer protective layer, a buffer assembly and a supporting assembly. The electric unit is located in the inner protective layer. The outer protective layer is arranged at the outer periphery of the inner protective layer at intervals. The buffer assembly is located between the outer protective layer and the inner protective layer and comprises an outer sliding member and a horizontal moving member. One end of the outer sliding member is elastically connected to a first zone of the inner protective layer, and the other end of the outer sliding member is slidably connected to the outer protective layer. The supporting assembly is located in the inner protective layer and comprises a supporting member, an inner sliding member and a swinging member. The electric unit is clamped between the supporting member and the swinging member. One end of the inner sliding member is slidably connected to the supporting member, and the other end of the inner sliding member abuts against a second zone of the inner protective layer. The swinging member is rotatably connected to the inner sliding member. When the outer sliding member slides towards the side close to the inner protective layer, the outer sliding member can abut against the horizontal moving member to slide around the inner protective layer and provide an internal pressure to the inner sliding member. Based on the internal pressure, the inner sliding member slides towards the side away from the inner protective layer.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of flexible cable, in particular to an inner and outer layer pressure-resistant flexible cable. BACKGROUND

[0002] Flexible cables are often applied in dynamic environments, such as frequently moving, dragging or vibrating environments. However, the current flexible cable has weak pressure resistance, and will be damaged when subjected to a large pressure. SUMMARY

[0003] The present application provides an inner and outer layer pressure-resistant flexible cable to solve the problem of weak pressure resistance of the flexible cable in the known technology.

[0004] The present application provides an inner and outer layer pressure-resistant flexible cable, comprising an inner protective layer, an electrical unit, an outer protective layer, a buffer assembly and a support assembly. The inner protective layer is provided with a receiving cavity. The electrical unit is located in the receiving cavity. The outer protective layer is spaced apart from the outer periphery of the inner protective layer. The buffer assembly is located between the outer protective layer and the inner protective layer, and comprises an outer sliding member and a horizontal moving member. One end of the outer sliding member is elastically connected to a first zone of the inner protective layer, and the other end of the outer sliding member is slidably connected to the outer protective layer. The support assembly is located in the receiving cavity, and comprises a support member, an inner sliding member and a swinging member. The electrical unit is clamped between the support member and the swinging member. One end of the inner sliding member is slidably connected to the support member, and the other end of the inner sliding member abuts a second zone of the inner protective layer. The swinging member is rotatably connected to the inner sliding member. When the outer sliding member slides towards the side close to the inner protective layer, the outer sliding member can abut the horizontal moving member to slide around the inner protective layer and provide an internal pressure to the inner sliding member. Based on the internal pressure, the inner sliding member slides away from the inner protective layer.

[0005] In a possible implementation, the second zone is provided with an elastic protrusion on the side close to the outer protective layer. The elastic protrusion is located on the sliding path of the horizontal moving member. The horizontal moving member can at least partially pass over the elastic protrusion and abut the elastic protrusion to move away from the outer protective layer.

[0006] In a possible implementation, the outer sliding member comprises an outer sliding part and a wedge part. One end of the outer sliding part is elastically connected to the first zone of the inner protective layer, and the other end of the outer sliding part is slidably connected to the outer protective layer.

[0007] Along the circumference of the inner protective layer, one side of the wedge part is connected to the sliding part. The wedge part is configured to abut the horizontal moving member to slide along the circumference of the inner protective layer.

[0008] In a possible implementation, along the circumferential direction of the inner protective layer, one side of the wedge portion away from the outer sliding portion is provided with a first inclined surface, one side of the transverse moving piece close to the wedge portion is provided with a second inclined surface, the first inclined surface and the second inclined surface are arranged in parallel, and the first inclined surface is configured to abut against the second inclined surface.

[0009] In a possible implementation, the buffer assembly further includes a first elastic member, one end of the first elastic member is elastically connected to the inner protective layer, and the other end of the first elastic member is elastically connected to the outer sliding member.

[0010] In a possible implementation, the inner sliding member includes an inner sliding portion and a supporting portion, one end of the inner sliding portion is slidably connected to the supporting member, the supporting portion is connected to the other end of the inner sliding portion, and the supporting portion is configured to support the second region of the inner protective layer.

[0011] In a possible implementation, the supporting member abuts against one side of the electric unit away from the inner protective layer, the swinging member is clamped between the inner protective layer and one side of the electric unit away from the supporting member, and the swinging member is rotatably connected to the supporting portion.

[0012] In a possible implementation, the supporting assembly further includes a second elastic member, one end of the second elastic member is elastically connected to the supporting member, and the other end of the second elastic member is elastically connected to one end of the inner sliding portion away from the supporting portion.

[0013] In a possible implementation, the number of the electric units is set to be multiple, the inner protective layer is provided with multiple first regions, multiple first regions and multiple electric units are arranged correspondingly, the number of the buffer assemblies is the same as the number of the electric units, and the outer sliding member of any one of the multiple buffer assemblies is elastically connected to the first region corresponding to one of the electric units.

[0014] In a possible implementation, the number of the electric units is set to be multiple, the supporting assembly includes multiple inner sliding members, multiple inner sliding members and multiple electric units are arranged correspondingly, one inner sliding member is arranged between any two adjacent electric units, and the swinging member corresponding to any two adjacent electric units is rotatably connected to the inner sliding member.

[0015] The inner and outer layer pressure-resistant flexible cable of the present application can buffer the pressure when the corresponding part of the flexible cable and the outer sliding piece is pressed. When the outer sliding piece is pressed and slides inward, the outer sliding piece can resist the circumferential sliding of the transverse moving piece, and the transverse moving piece further makes the inner sliding piece slide away from the inner protective layer. Based on the slidable connection between the inner sliding piece and the support piece, the external force on the flexible cable can be buffered. In addition, the electrical unit is clamped between the swing piece and the support piece, which can further protect the electrical unit from pressure. The swing piece and the inner sliding piece are slidable connected, which can buffer the pressure on the electrical unit through the swing of the swing piece when the first part corresponding to the electrical unit is pressed, and avoid the swing of the swing piece driving the inner sliding piece to move and unable to support the second part through the inner sliding piece, further ensuring the pressure resistance of the entire flexible cable. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 FIG. 1 is a structural schematic diagram of an inner and outer layer pressure-resistant flexible cable in an embodiment of the present application.

[0017] Main element symbol explanation: 100, inner and outer layer pressure-resistant flexible cable; P1, first inclined surface; P2, second inclined surface; 1, first part; 2, second part; 10, inner protective layer; 11, accommodation cavity; 12, containing groove; 13, elastic protrusion; 20, electrical unit; 21, conductor; 22, insulating layer; 30, buffer assembly; 31, outer sliding piece; 311, outer sliding part; 312, inclined wedge part; 32, transverse moving piece; 33, first elastic piece; 40, support assembly; 41, support piece; 411, center part; 412, extension part; 4120, sliding groove; 42, inner sliding piece; 421, inner sliding part; 422, support part; 43, second elastic piece; 44, swing piece; 45, hinge shaft; 50, outer protective layer; 51, shielding layer; 52, shielding insulating layer; 53, outer protective sleeve; 60, guide seat; 61, guide hole.

[0018] The following detailed description will further describe the present application in combination with the above-mentioned drawings. DETAILED DESCRIPTION

[0019] The following description will refer to the accompanying drawings to more fully describe the present application. The drawings show exemplary embodiments of the present application. However, the present application can be implemented in many different forms and should not be interpreted as being limited to the exemplary embodiments set forth herein. These exemplary embodiments are provided to make the present application thorough and complete, and to fully convey the scope of the present application to those skilled in the art. The same reference numbers are used to represent the same or similar components.

[0020] The terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to limit the application. As used herein, unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “the” are intended to also include the plural forms. Furthermore, when used herein, “comprising” and / or “including” and / or “having,” integers, steps, operations, components, and / or components, but does not exclude the presence or addition of one or more other features, regions, integers, steps, operations, components, and / or groups thereof.

[0021] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. Furthermore, unless expressly defined herein, terms such as those defined in a general dictionary should be interpreted as having the same meaning as they have in the relevant art and in the content of this application, and will not be interpreted as having an idealized or overly formal meaning.

[0022] The specific embodiments of this application will be further described in detail below with reference to the accompanying drawings.

[0023] like Figure 1 As shown, this embodiment provides an inner and outer layer pressure-resistant flexible cable 100, including an inner sheath 10, an electrical unit 20, an outer sheath 50, a buffer assembly 30, and a support assembly 40.

[0024] The inner sheath 10 is made of insulating plastic and is generally a hollow cylindrical structure, with a receiving cavity 11 inside. The electrical unit 20 is located within the receiving cavity 11. The outer sheath 50 is spaced apart on the outer periphery of the inner sheath 10 to form a gap between the inner sheath 10 and the outer sheath 50. The buffer assembly 30 is located within the gap between the outer sheath 50 and the inner sheath 10, and includes an outer sliding member 31 and a lateral moving member 32. One end of the outer sliding member 31 is elastically connected to the first section 1 of the inner sheath 10, and the other end of the outer sliding member 31 is slidably connected to the outer sheath 50. The support assembly 40 is located within the receiving cavity 11 and includes a support member 41, an inner sliding member 42, and a swinging member 44. The electrical unit 20 is clamped between the support member 41 and the swinging member 44. One end of the inner sliding member 42 is slidably connected to the support member 41, and the other end abuts against the second section 2 of the inner sheath 10. The swing member 44 is rotatably connected to the inner sliding member 42. When the outer sliding member 31 slides toward the side closer to the inner protective layer 10, the outer sliding member 31 can resist the lateral member 32 sliding around the inner protective layer 10 and provide internal pressure to the inner sliding member 42. Based on the internal pressure, the inner sliding member 42 slides toward the side away from the inner protective layer 10.

[0025] Therefore, when the part of the soft cable corresponding to the outer sliding piece 31 is compressed, the outer sliding piece 31 can play a buffering role, and when the outer sliding piece 31 is compressed and slides inward, the outer sliding piece 31 can resist the circumferential sliding of the transverse moving piece 32, the transverse moving piece 32 further makes the inner sliding piece 42 slide away from the inner protective layer 10, and based on the slidable connection between the inner sliding piece 42 and the support piece 41, the external force received by the soft cable can be buffered. In addition, the electric unit 20 is clamped between the swing piece 44 and the support piece 41, which can further play a compression protection role for the electric unit 20, and the swing piece 44 and the inner sliding piece 42 are slidable connected, which can buffer the swing piece 44 when the first part 1 corresponding to the electric unit 20 is compressed and acts on the electric unit 20, on the one hand, and on the other hand, avoid the swing piece 44 from moving the inner sliding piece 42 to support the second part 2 through the inner sliding piece 42, and further ensure the compression performance of the entire soft cable.

[0026] Please combine Figure 1 In an embodiment, the number of electric units 20 is set to be multiple, the inner protective layer 10 is provided with multiple first parts 1, the multiple first parts 1 are arranged corresponding to the multiple electric units 20, the number of buffer assemblies 30 is the same as that of the electric units 20, and the outer sliding piece 31 of any one of the multiple buffer assemblies 30 is elastically connected to the first part 1 corresponding to one electric unit 20.

[0027] In the embodiment, the number of electric units 20 is set to be four, and the four electric units 20 are arranged at equal intervals around the central axis of the inner protective layer 10. The number of buffer assemblies 30 is also set to be four, and the inner protective layer 10 includes four first parts 1 and four second parts 2. Along the circumference of the inner protective layer 10, the four first parts 1 and the four second parts 2 are arranged in staggered intervals. That is, one second part 2 is arranged between any two adjacent first parts 1, and one first part 1 is arranged between any two adjacent second parts 2, so as to form the inner protective layer 10 by connecting the four first parts 1 and the four second parts 2 to each other. It should be noted that the four first parts 1 and the four second parts 2 are integrally formed, and are only regarded as a part of the inner protective layer 10 for ease of description.

[0028] It can be understood that in other embodiments, the number of electric units 20 can also be set to three or five or other numbers, and the buffer assemblies 30, the first parts 1 and the second parts 2 are arranged correspondingly. The number of electric units 20 can be selected according to actual needs.

[0029] In the embodiment, the electric unit 20 comprises a conductor 21 and an insulation layer 22. The conductor 21 is made of conductive material such as aluminum or copper. The insulation layer 22 is made of insulating material and covers the outer periphery of the conductor 21 to play an insulation role. It is worth noting that the electric unit 20 can also be provided with a shielding structure or a protective structure according to actual design requirements. The other structural components of the electric unit 20 except the conductor 21 and the insulation layer 22 are not limited in the present application.

[0030] The support assembly 40 comprises a plurality of inner sliding members 42, which are provided corresponding to the plurality of electric units 20. One inner sliding member 42 is arranged between any two adjacent electric units 20, and the swing members 44 corresponding to any two adjacent electric units 20 are rotatably connected to the inner sliding member 42.

[0031] In the embodiment, the number of inner sliding members 42 is four, and the four inner sliding members 42 are respectively abutted on the four second zone parts 2. The support member 41 comprises a central part 411 and a plurality of extension parts 412. The number of the plurality of extension parts 412 is the same as the number of the electric units 20, that is, the number of the plurality of extension parts 412 is four. The four extension parts 412 are arranged at equal intervals around the outer periphery of the central part 411. The extension directions of any two adjacent extension parts 412 are perpendicular to each other, and a receiving space is formed between any two adjacent extension parts 412. The electric unit 20 is at least partially located in the receiving space, and the two sides of the electric unit 20 are respectively abutted on the two adjacent extension parts 412 to jointly support and position the electric unit 20 by the two extension parts 412.

[0032] The central part 411 is coaxially arranged with the inner protective layer 10. One end of the extension part 412 is connected to the outer periphery of the central part 411, and the other end of the extension part 412 is spaced apart from the inner protective layer 10. The four inner sliding members 42 are correspondingly arranged with the four extension parts 412. One end of each inner sliding member 42 is slidably connected to the end of the corresponding extension part 412 away from the central part 411, and the sliding direction of the inner sliding member 42 is parallel to the extension direction of the extension part 412 where the inner sliding member 42 is located.

[0033] Please refer to Figure 1 In an embodiment, the side of the second zone part 2 close to the outer protective layer 50 protrudes an elastic protrusion 13. The elastic protrusion 13 is located on the sliding path of the horizontal moving member 32, and the horizontal moving member 32 can at least partially pass over the elastic protrusion 13 and abut the elastic protrusion 13 to move away from the outer protective layer 50.

[0034] The side of the second zone part 2 close to the outer protective layer 50 protrudes an elastic protrusion 13. The elastic protrusion 13 is located on the sliding path of the horizontal moving member 32, and the horizontal moving member 32 can at least partially pass over the elastic protrusion 13 and abut the elastic protrusion 13 to move away from the outer protective layer 50.

[0035] The plurality of outer sliding members 31 are arranged in one-to-one correspondence with the plurality of electrical units 20. In the radial direction of the inner sheath 10, the outer sliding member 31 and the electrical unit 20 are respectively located on opposite sides of the same first section 1.

[0036] The number of the elastic protrusions 13 is set to be multiple, and the number of the elastic protrusions 13 is the same as the number of the electrical units 20, that is, the number of the elastic protrusions 13 is also set to be four. In the circumferential direction of the inner sheath 10, the plurality of outer sliding members 31 are arranged at equal intervals, the plurality of elastic protrusions 13 are arranged at equal intervals, and one elastic protrusion 13 is arranged at the middle position between any two adjacent outer sliding members 31. Two transverse members 32 are arranged between any adjacent outer sliding member 31 and elastic protrusion 13, and in the circumferential direction of the inner sheath 10, the outer sliding member 31, the two transverse members 32, and the elastic protrusion 13 abut each other.

[0037] It can be understood that in other embodiments, the number of transverse members 32 between any adjacent outer sliding member 31 and elastic protrusion 13 can also be set to three or more, and the specific number can be selected according to actual design requirements.

[0038] Please refer to Figure 1 In an embodiment, the outer sliding member 31 includes an outer sliding portion 311 and a wedge portion 312, one end of the outer sliding portion 311 is elastically connected to the first section 1 of the inner sheath 10, and the other end of the outer sliding portion 311 is slidably connected to the outer sheath 50. In the circumferential direction of the inner sheath 10, the wedge portion 312 is connected to one side of the sliding portion, and the wedge portion 312 is configured to abut the transverse member 32 to slide in the circumferential direction of the inner sheath 10.

[0039] In the present embodiment, each first section 1 is provided with a guide seat 60 near the side of the outer sheath 50, the guide seat 60 is connected to the first section 1, and the material of the guide seat 60 is an insulating plastic material. The guide seat 60 is provided with a guide hole 61, which penetrates the guide seat 60 in the radial direction of the inner sheath 10. One end of the outer sliding portion 311 abuts the side of the outer sheath 50 close to the inner sheath 10, and the other end of the outer sliding portion 311 is slidably arranged in the guide hole 61. The number of the wedge portions 312 is set to two, and in the circumferential direction of the inner sheath 10, the two wedge portions 312 are respectively connected to the opposite sides of the outer sliding portion 311. In addition, the surface of the wedge portion 312 close to the outer sheath 50 is attached to the inner wall of the outer sheath 50, so as to support the outer sheath 50 through the wedge portion 312, and the pressure generated when the outer sliding portion 311 is subjected to the pressure action of the outer sheath 50 is reduced through the arrangement of the wedge portion 312.

[0040] Further, along the circumferential direction of the inner sheath 10, the inclined wedge part 312 is provided with a first inclined surface P1 on the side away from the outer sliding part 311, and the lateral moving part 32 is provided with a second inclined surface P2 on the side close to the inclined wedge part 312, the first inclined surface P1 and the second inclined surface P2 are arranged in parallel, and the first inclined surface P1 is configured to abut against the second inclined surface P2.

[0041] Along the sliding direction of the outer sliding part 311, the first inclined surface P1 extends obliquely from the end close to the outer sheath 50 of the outer sliding part 311 to the side of the outer sliding part 311 and to the inner sheath 10. The cross-sectional shape of the lateral moving part 32 is a parallelogram, and the inside of the lateral moving part 32 can be hollowly arranged to improve the flexibility of the flexible cable. The side of the lateral moving part 32 close to the outer sheath 50 is attached to the outer sheath 50, and the side of the lateral moving part 32 close to the inner sheath 10 is attached to the inner sheath 10. Along the circumferential direction of the inner sheath 10, the surface of the side of the lateral moving part 32 close to the inclined wedge part 312 it abuts against is provided with a second inclined surface P2, the second inclined surface P2 is parallel to the first inclined surface P1, and the first inclined surface P1 abuts against the second inclined surface P2. The surface of the side of the lateral moving part 32 away from the inclined wedge part 312 it abuts against is provided with a third inclined surface, the third inclined surface is parallel to the second inclined surface P2, and the third inclined surface abuts against the second inclined surface P2 of the adjacent lateral moving part 32.

[0042] The inclined wedge part 312 and the lateral moving part 32 form a wedge structure through the first inclined surface P1 and the second inclined surface P2, so that when the outer sliding part 31 is moved to the side of the inner sheath 10 under the action of an external force, the inclined wedge part 312 can abut against the lateral moving parts 32 on both sides, and then the lateral moving parts 32 are moved to the side away from the inclined wedge part 312 along the circumferential direction of the inner sheath 10, and then the lateral moving parts 32 abut against the adjacent lateral moving parts 32 to move to the elastic protrusion 13, and then the lateral moving parts 32 move to partially over the elastic protrusion 13.

[0043] The two lateral moving parts 32 located on both sides of the elastic protrusion 13 are arranged at intervals to form a space between the two lateral moving parts 32 for accommodating the elastic protrusion 13. The elastic protrusion 13 is made of elastic plastic material, and along the radial direction of the inner sheath 10, one side of the elastic protrusion 13 is connected to the outer wall of the inner sheath 10, and the other side is arranged at intervals from the outer sheath 50, so that a space for the lateral moving part 32 to move can be formed between the elastic protrusion 13 and the outer sheath 50. The surface of the side of the elastic protrusion 13 away from the inner sheath 10 is a slope, so that the lateral moving part 32 abutting against the elastic protrusion 13 can move over the elastic protrusion 13 along the slope. At the same time, when the lateral moving part 32 moves over the elastic protrusion 13, the lateral moving part 32 exerts pressure on the elastic protrusion 13, and then the elastic protrusion 13 and the second part 2 where it is located move to the side away from the outer sheath 50, thereby exerting pressure on the inner sliding part 42. In addition, the elastic protrusion 13 is made of elastic material, which can also well buffer the pressure from the lateral moving part 32.

[0044] It is worth noting that, along the radial direction of the inner sheath 10, the part of the transverse member 32 adjacent to the elastic protrusion 13 is always located in the space on the side of the elastic protrusion 13 close to the outer sheath 50 and abuts against the outer sheath 50, so that when the part of the outer sheath 50 corresponding to the elastic protrusion 13 is pressed, the pressure can act on the transverse member 32, and then the transverse member 32 presses the elastic protrusion 13 inwardly, so that the elastic protrusion 13 and the second part 2 where the elastic protrusion 13 is located move away from the side of the outer sheath 50, thereby exerting pressure on the inner sliding member 42.

[0045] Further, the buffer assembly 30 further comprises a first elastic member 33, one end of the first elastic member 33 is elastically connected to the inner sheath 10, and the other end of the first elastic member 33 is elastically connected to the outer sliding member 31.

[0046] The side of the first part 1 close to the outer sheath 50 is provided with a plurality of accommodating grooves 12, and the accommodating grooves 12 are formed by recessing inwardly from the side of the first part 1 close to the outer sheath 50. Each accommodating groove 12 is used to install a first elastic member 33, one end of the first elastic member 33 is located in the accommodating groove 12 and connected to the bottom wall of the accommodating groove 12, and the other end of the first elastic member 33 is elastically connected to the end of the outer sliding part 311 away from the outer sheath 50. The first elastic member 33 is a compression spring, so that the first elastic member 33 always provides the outer sliding member 31 with an elastic force to move away from the side of the outer sheath 50, thereby making the outer sliding member 31 fit and support the outer sheath 50. In addition, the first elastic member 33 can also buffer the pressure received by the outer sliding member 31, thereby improving the pressure resistance of the flexible cable.

[0047] Please also refer to Figure 1 In an embodiment, the inner sliding member 42 comprises an inner sliding part 421 and a support part 422, one end of the inner sliding part 421 is slidably connected to the support member 41, the support part 422 is connected to the other end of the inner sliding part 421, and the support part 422 is configured to support the second part 2 of the inner sheath 10.

[0048] In this embodiment, the inner sliding part 421 is substantially a rod structure, the extension part 412 is provided with a sliding groove 4120 at one end away from the center part 411, and the extension direction of the sliding groove 4120 is parallel to the extension direction of the extension part 412 where the sliding groove 4120 is located. One end of the extension part 412 is slidably accommodated in the sliding groove 4120, and the other end of the extension part 412 is exposed to the sliding groove 4120 and connected to the support part 422.

[0049] Further, the support assembly 40 further comprises a second elastic member 43, one end of the second elastic member 43 is elastically connected to the support member 41, and the other end of the second elastic member 43 is elastically connected to the end of the inner sliding part 421 away from the support part 422.

[0050] The second elastic members 43 are in number of four, and are arranged in correspondence with the four inner sliding members 42, and are respectively located in the four sliding grooves 4120. The second elastic members 43 are compression springs, and the extending direction of the second elastic members 43 is parallel to the extending direction of the extending portions 412 where the second elastic members 43 are located. One end of the second elastic members 43 is elastically connected to the abutting portion of the sliding groove 4120, and the other end of the second elastic members 43 is elastically connected to one end of the inner sliding portion 421 located in the sliding groove 4120. The second elastic members 43 always provide the inner sliding members 42 with elastic force for moving away from the support member 41, so that the support portions 422 of the inner sliding members 42 can abut against the inner protective layer 10, and the inner protective layer 10 is supported by the support portions 422.

[0051] In particular, the support portions 422 are in the shape of a curve, and the surface of the side of the support portions 422 away from the inner sliding portions 421 is attached to the inner surface of the inner protective layer 10, so as to improve the stability of the support portions 422 supporting the inner protective layer 10, and avoid the inner sliding members 42 being subjected to excessive pressure when the inner protective layer 10 is subjected to excessive force. It is worth noting that the material of the support portions 422 has a certain elasticity, so that the support portions 422 can elastically deform in response to the inner protective layer 10 being deformed under pressure.

[0052] In the embodiment, the support member 41 abuts against the side of the electric unit 20 away from the inner protective layer 10, the swing members 44 are arranged between the inner protective layer 10 and the side of the electric unit 20 away from the support member 41, and the swing members 44 are rotatably connected to the support portions 422.

[0053] The swing members 44 are in the shape of a fan, and along the radial direction of the inner protective layer 10, one side of the swing members 44 is attached to the inner surface of the inner protective layer 10, and the other side of the swing members 44 is attached to the outer surface of the electric unit 20, so as to improve the stability of the swing members 44 supporting the inner protective layer 10 and the electric unit 20.

[0054] In the embodiment, the swing members 44 are in number of eight, and each electric unit 20 corresponds to two swing members 44. The swing members 44 are made of insulating plastic material, and the support member 41 is also made of insulating plastic material. Along the circumferential direction of the inner protective layer 10, the proximal sides of the two swing members 44 corresponding to the same electric unit 20 abut against each other, and the distal sides of the two swing members 44 corresponding to the same electric unit 20 are rotatably connected to the support portions 422 of two adjacent inner sliding members 42.

[0055] In the embodiment, the swing members 44 and the support portions 422 are hingedly connected to each other. Specifically, the swing members 44 can be provided with swing grooves, and the two ends of the support portion 422 are rotatably received in the swing grooves of the two adjacent swing members 44 along the circumferential direction of the inner sheath 10, and the part of the support portion 422 located in the swing grooves is rotatably connected to the swing members 44 through the hinge shaft 45. The extension direction of the hinge shaft 45 is parallel to the extension direction of the flexible cable. In addition, the space size of the swing grooves should be set based on the rotation amplitude of the support portion 422 and the swing member 44 to avoid interference and other problems when the support portion 422 and the swing member 44 rotate.

[0056] In this way, the same electrical unit 20 is supported on the support member 41 by two swing members 44, which can ensure the stability of the position of the electrical unit 20, and more parts of the side of the electrical unit 20 close to the inner sheath 10 are covered by the swing members 44, further improving the pressure resistance of the electrical unit 20. At the same time, the eight swing members 44 cooperate with the four support portions 422 to fit the entire inner surface of the inner sheath 10, thereby improving the support effect on the inner sheath 10 and also improving the pressure resistance of the inner sheath 10, and ensuring the roundness of the inner sheath 10, so that the above-mentioned transverse moving member 32 can stably move along the outer circumferential surface of the inner sheath 10.

[0057] In the embodiment, when one second part 2 is located at the top end of the flexible cable, the upper half part corresponding to the second part 2 of the flexible cable is subjected to external force, the external force acts on the second part 2 through the transverse moving member 32 and the elastic protrusion 13, and the second part 2 makes the inner sliding member 42 slide towards the support member 41 after being subjected to force, and the second elastic member 43 plays a buffering role, and in the sliding process of the inner sliding member 42, the inner sliding member 42 will rotate relative to the swing member 44, avoiding the swing member 44 from sliding with the inner sliding member 42, which can ensure that the swing member 44 continues to fit the side of the electrical unit 20 close to the inner sheath 10 to protect the electrical unit 20 from pressure. In addition, when the upper half part of the flexible cable is subjected to external force, the first part 1 is also subjected to force and acts on the electrical unit 20, which on the one hand disperses and buffers the pressure through the cooperation of the outer sliding member 31 and the transverse moving member 32, and on the other hand the swing member 44 itself has a certain elastic material to buffer the external force, and on the other hand the swing member 44 slides relative to the inner sliding member 42 with the deformation of the inner sheath 10 to realize the dispersion of the external force, thereby avoiding that a large force directly presses the electrical unit 20 to cause damage.

[0058] In addition, when the bottom end of the flexible cable is placed on the ground, the top end of the flexible cable is subjected to force, and the bottom end of the flexible cable is also subjected to force to make the corresponding inner sliding member 42 slide, and the corresponding second elastic member 43 of the inner sliding member 42 buffers the pressure, thereby relieving the pressure on the top end of the flexible cable by simultaneously providing buffering through the two second elastic members 43.

[0059] It is worth noting that the other second part 2 corresponding to the soft cable part is subjected to external force, and the compression resistance mechanism is roughly the same as the above, and will not be repeated.

[0060] When a first part 1 is located at the top end of the soft cable (or the first part 1 as the main stress point), the upper half part corresponding to the first part 1 of the soft cable is subjected to external force, on the one hand, through the cooperation of the outer sliding part 31 and the horizontal moving part 32 to disperse and buffer the pressure, on the other hand, the inner protective layer 10 is stressed to extrude the swing part 44 and move it inward, the swing part 44 itself has a certain elastic material to buffer the external force, avoiding the direct action of the external force on the electric unit 20, and on the other hand, the swing part 44 slides with the inner sliding part 42 to realize the dispersion of the external force. At the same time, the same electric unit 20 is in contact with two swing parts 44, so that the electric unit 20 has a larger stress area, which can make the external force transmitted by the first part 1 to the two swing parts 44 when transmitted to the electric unit 20, based on the larger contact area between the electric unit 20 and the two swing parts 44, thereby avoiding the external force concentrated on the smaller area of the electric unit 20 and causing the electric unit 20 to be stressed.

[0061] Please refer to Figure 1 In an embodiment, the inner and outer layer compression-resistant soft cable 100 further comprises an outer protective layer 50, which is wrapped around the outer periphery of the inner protective layer 10. The outer protective layer 50 includes a shielding layer 51, a shielding insulation layer 52, an outer protective sleeve 53 and the like. In addition, according to the specific application scenario of the inner and outer layer compression-resistant soft cable 100, the outer protective layer 50 can also include a waterproof layer, a fireproof layer and other necessary layer structures for constructing a soft cable.

[0062] In the foregoing, the specific embodiments of the present application are described with reference to the accompanying drawings. However, those skilled in the art can understand that various changes and replacements can be made to the specific embodiments of the present application without departing from the scope of the present application. These changes and replacements are within the scope defined by the present application.

Claims

1. A flexible cable with inner and outer layers resistant to compression, characterized in that, include: Inner protective layer, which has a receiving cavity inside; An electrical unit is located within the receiving cavity; An outer protective layer is provided at intervals on the outer periphery of the inner protective layer; A buffer assembly is located between the outer protective layer and the inner protective layer. The buffer assembly includes an outer sliding member and a lateral sliding member. One end of the outer sliding member is elastically connected to a first section of the inner protective layer, and the other end of the outer sliding member is slidably connected to the outer protective layer. A support assembly located within the receiving cavity includes a support member, an inner sliding member, and a swing member. The electrical unit is clamped between the support member and the swing member. One end of the inner sliding member is slidably connected to the support member, and the other end abuts against a second portion of the inner protective layer. The swing member is rotatably connected to the inner sliding member. An elastic protrusion is provided on the side of the second portion near the outer protective layer. The elastic protrusion is located on the sliding path of the transverse member. The transverse member can at least partially pass over the elastic protrusion and abut against the elastic protrusion to move away from the outer protective layer. When the outer sliding member slides towards the side closer to the inner protective layer, the outer sliding member can resist the sliding of the transverse member around the inner protective layer and provide internal pressure to the inner sliding member. Based on the internal pressure, the inner sliding member slides towards the side away from the inner protective layer. The outer sliding member includes an outer sliding portion and a wedge portion. One end of the outer sliding portion is elastically connected to a first region of the inner protective layer, and the other end of the outer sliding portion is slidably connected to the outer protective layer. Along the circumference of the inner protective layer, the wedge portion is connected to one side of the sliding portion. The wedge portion is configured to resist the sliding of the transverse member along the circumference of the inner protective layer. Along the circumference of the inner protective layer, the side of the wedge portion away from the outer sliding portion is provided with a first inclined surface, and the side of the transverse member close to the wedge portion is provided with a second inclined surface. The first inclined surface and the second inclined surface are arranged parallel to each other, and the first inclined surface is configured to resist the second inclined surface.

2. The inner and outer layer pressure-resistant flexible cable as described in claim 1, characterized in that, The buffer assembly further includes a first elastic element, one end of which is elastically connected to the inner protective layer, and the other end of which is elastically connected to the outer sliding element.

3. The inner and outer layer pressure-resistant flexible cable as described in claim 1, characterized in that, The inner sliding member includes an inner sliding portion and a support portion. One end of the inner sliding portion is slidably connected to the support portion, and the support portion is connected to the other end of the inner sliding portion. The support portion is configured to support the second region of the inner protective layer.

4. The inner and outer layer pressure-resistant flexible cable as described in claim 3, characterized in that, The support member abuts against the side of the electrical unit away from the inner protective layer, the swing member is sandwiched between the inner protective layer and the side of the electrical unit away from the support member, and the swing member is rotatably connected to the support portion.

5. The inner and outer layer pressure-resistant flexible cable as described in claim 3, characterized in that, The support assembly further includes a second elastic element, one end of which is elastically connected to the support member, and the other end of which is elastically connected to the end of the inner sliding portion away from the support member.

6. The inner and outer layer pressure-resistant flexible cable as described in claim 5, characterized in that, The number of electrical units is set to multiple, the inner protective layer is provided with multiple first sections, the multiple first sections are corresponding to the multiple electrical units, the number of buffer components is the same as the number of electrical units, and the outer sliding member of any one of the multiple buffer components is elastically connected to the first section corresponding to one of the electrical units.

7. The inner and outer layer pressure-resistant flexible cable as described in claim 1, characterized in that, The number of electrical units is set to multiple, and the support assembly includes multiple inner sliding members. The multiple inner sliding members are correspondingly arranged with the multiple electrical units. An inner sliding member is provided between any two adjacent electrical units, and the swing member corresponding to any two adjacent electrical units can be rotatably connected to the inner sliding member.

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