Cable, cable accessory installation structure and installation process thereof

Abstract

The present invention discloses a cable, a cable accessory installation structure, and an installation process thereof. The cable comprises an inner sheath, the inner sheath being wrapped with a conductor, the conductor being inserted into the inner sheath axially along the inner sheath, the outer sheath being wrapped with an outer sheath on the outer wall of the inner sheath, the inner sheath being inserted into the outer sheath, the inner sheath and the outer sheath being coaxially arranged, the inner sheath being provided with a first groove, the first groove being located on both sides of the inner sheath, the first groove being axially extending through the inner sheath, the inner sheath including second outer wall surfaces located on both sides, the first groove being traversed through the second outer wall surface. The present invention provides a cable, a cable accessory installation structure, and an installation process thereof, which improve the service life of the cable.

Description

Technical Field

[0001] The present invention relates to the technical field of cables, and more particularly to a cable, a cable accessory installation structure, and an installation process thereof. Background Art

[0002] With the development of new energy vehicles, robotics, and other fields, the application scenarios of cables are constantly expanding. The wires at the end of the cable extend outwards and are then connected to the plug-in components. This part of the wire is not covered by the cable's outer sheath and is generally wrapped only with insulating tape. During use, the cable is subjected to external forces such as squeezing and pulling. Due to the lack of fixation, the wires at the end of the cable are easily damaged by bending or squeezing, causing poor contact or disconnection. Summary of the Invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a cable, an auxiliary installation structure for the cable and an installation process thereof, so as to increase the service life of the cable.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a cable, including an inner sheath, the inner sheath is wrapped with a conductor, the conductor penetrates into the inner sheath axially along the inner sheath, the outer wall of the inner sheath is wrapped with an outer sheath, the inner sheath penetrates into the outer sheath, the inner sheath and the outer sheath are coaxially arranged, the inner sheath is provided with a groove body one, the groove body one is located on both sides of the inner sheath, the groove body one penetrates the inner sheath axially along the inner sheath, the inner sheath includes two outer wall surfaces located on both sides, and the groove body one penetrates the two outer wall surfaces.

[0005] The present invention is further configured such that the outer cladding layer includes a second groove body, and the outer wall surface of the inner cladding layer is in close contact with the wall surface of the second groove body.

[0006] The present invention is further configured such that the inner cladding includes outer wall surface 1 located on both sides, the line connecting the two outer wall surfaces 1 is perpendicular to the line connecting the two outer wall surfaces 2, outer wall surface 1 is a straight surface, and outer wall surface 2 is an arc surface, and the groove body 2 includes inner wall surface 1 and inner wall surface 2, the inner wall surface 1 and the outer wall surface 1 are in close contact with each other, and at least part of the inner wall surface 2 and the outer wall surface 2 are in close contact with each other.

[0007] The present invention is further configured such that the outer cladding layer further includes an extension groove, the extension groove is located on both sides of the second groove body, the extension groove is connected to the second groove body, the extension groove is connected to the first groove body, and a gap cavity is formed between the wall surface of the extension groove and the second outer wall surface.

[0008] The present invention is further configured such that the groove body 1 is provided with an inclined surface 1, and the inclined surface 1 gradually inclines toward the outer wall surface 1 which is closest to the inner cladding axis.

[0009] The present invention also adopts the following technical solution: an auxiliary component installation structure for a cable, wherein auxiliary component bodies are installed on both sides of the outer sheath, and the two auxiliary component bodies are connected to each other so that the inner wall of the auxiliary component body presses the outer wall of the outer sheath, an insert is inserted into the groove body, and the side walls of the groove body press the side walls of the insert, and the auxiliary component body is installed with a fastener, which passes through the auxiliary component body and is threadedly connected to the insert.

[0010] The present invention is further configured such that the auxiliary component body includes an extension block 1, and the extension block 1 is inserted into the outer covering layer.

[0011] The present invention is further configured such that the insert includes a second inclined surface located on both sides, and the second inclined surface is in close contact with a wall surface of the trough body.

[0012] The present invention also adopts the following technical solution: a cable accessory installation process, which installs the cable into a cable accessory installation structure, specifically including the following process steps:

[0013] ① Drill holes on both sides of the outer cladding to form through holes on both sides of the outer cladding;

[0014] ②Insert the insert into the slot body 1 from the end of the inner cladding. When inserting, the inclined surface 3 fits the corresponding inclined surface 1. After insertion, the insert faces the through hole.

[0015] ③ Install the auxiliary parts, connect the two auxiliary parts and insert them into the outer layer, and press the inner wall of the auxiliary parts against the outer wall of the outer layer;

[0016] ④ Install the fastener, insert the fastener thread into the insert, and after the fastener is screwed to the bottom of the insert thread, continue to rotate the fastener so that the fastener drives the insert to rotate, so that the second bevel and the first bevel are in close contact with each other.

[0017] In summary, the present invention has the following beneficial effects:

[0018] 1. By installing accessories at the end of the cable, the accessories and other connectors form a fixed installation to prevent the wires extending out of the inner and outer sheaths of the cable from being deformed or damaged due to squeezing or bending when subjected to external forces, thereby improving the position stability of the wires at the end of the cable and thus extending the service life of the cable.

[0019] 2. By setting the insert, the axial fixing force between the two auxiliary parts used to clamp the outer sheath and the outer sheath is improved, the fixing strength of the two is improved, and the possibility of the end cable becoming loose is reduced, thereby reducing the bending of the internal wires and providing good protection for the wires. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a cross-sectional schematic diagram of embodiment 1;

[0021] Figure 2 A cross-sectional view of the second embodiment Figure 1 ;

[0022] Figure 3 for Figure 2 Schematic diagram of the left side;

[0023] Figure 4 A cross-sectional view of the second embodiment Figure 2 ;

[0024] Figure 5 for Figure 4 Schematic diagram of the P direction;

[0025] Figure 6 for Figure 4 Schematic diagram of the middle block in the direction.

[0026] Figure numerals: inner cladding 1, outer wall surface one 11, outer wall surface two 12, groove body one 13, inclined surface one 131, outer cladding 2, groove body two 21, inner wall surface one 211, inner wall surface two 212, extension groove 213, outer wall surface three 22, through hole 23, gap cavity 24, wire 3, auxiliary body 4, extension block one 41, extension block two 42, fastener 5, embedment block 6, inclined surface two 61, inclined surface three 62. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] Example 1:

[0029] like Figure 1 As shown, this embodiment discloses a cable comprising an inner sheath 1, which is wrapped around a plurality of conductors 3. The conductors 3 are copper conductors with a diameter greater than 3 mm. The inner sheath 1 is a rubber layer, and the conductors 3 penetrate the inner sheath 1 axially, tightly wrapping the plurality of conductors 3. The inner sheath 1 includes outer wall surfaces 12 on the left and right sides, and outer wall surfaces 11 on the top and bottom sides. The line connecting the two outer wall surfaces 11 is perpendicular to the line connecting the two outer wall surfaces 12. The outer wall surface 11 is a straight surface, while the outer wall surface 12 is a curved surface.

[0030] The inner cladding 1 is provided with grooves 13, located on the left and right sides of the inner cladding 1. Grooves 13 extend axially through the inner cladding 1, i.e., their length is axially aligned with the inner cladding 1 and extends through the outer wall 12. Slanted surfaces 131 are provided on the upper and lower sides of the grooves 13. Slanted surfaces 131 gradually slope toward the outer wall 11, proximate the inner cladding 1 axis, as they approach the inner cladding 1 axis.

[0031] like Figure 1 As shown, the outer wall of the inner cladding 1 is wrapped around the outer cladding 2. The inner cladding 1 penetrates the outer cladding 2, and the inner cladding 1 and the outer cladding 2 are arranged coaxially. The outer cladding 2 includes a second groove body 21, which axially extends through the outer cladding 2. The outer wall surface of the inner cladding 1 and the wall surface of the second groove body 21 are closely attached to each other. Specifically, the second groove body 21 includes an inner wall surface 1 211 and an inner wall surface 212. The inner wall surface 1 211 and the outer wall surface 1 11 are closely attached to each other, and at least a portion of the inner wall surface 212 and the outer wall surface 2 12 are closely attached to each other, so that the inner cladding 1 and the outer cladding 2 are not misaligned in the circumferential direction.

[0032] like Figure 1 As shown, the outer cladding 2 also includes an extension groove 213, which is located on the left and right sides of the second groove body 21. The extension groove 213 is connected to the second groove body 21, and the extension groove 213 is connected to the first groove body 13. A gap cavity 24 is formed between the wall of the extension groove 213 and the outer wall surface 12.

[0033] When the cable is being processed, the conductor 3 is passed into a screw extruder to wrap the inner sheath 1 around the conductor 3. After the inner sheath 1 is cooled and formed, it is passed into another screw extruder and the outer sheath 2 is wrapped around the outer surface of the inner sheath 1. Since the temperature of the outer sheath 2 is relatively high during wrapping, it will simultaneously melt the outer surface of the inner sheath 1, allowing the outer surface of the inner sheath 1 to fuse with the outer sheath 2, thereby improving the bonding ability between the two.

[0034] By providing the gap cavity 24, a distance is formed between the outer wall surface 12 and the inner wall of the outer cladding 2. When the inclined surfaces 131 on both sides are expanded away from each other, the gap cavity 24 reserves space for the deformation protrusion of the outer wall surface 12, and also reserves space for the outer cladding 2 to be locked into the gap cavity 24.

[0035] The outer wall of the outer cladding layer 2 is cylindrical, and the outer cladding layer 2 further includes outer wall surfaces 22 located on the left and right sides. The outer wall surfaces 22 are straight surfaces to facilitate subsequent punching operations and position limiting.

[0036] Example 2:

[0037] like Figure 2-Figure 6As shown, an accessory installation structure for a cable according to a first embodiment includes accessory bodies 4 mounted on both sides of the outer sheath 2. The accessory bodies 4 include upper and lower extension blocks 42, which are directly connected by bolts. This allows the inner wall of the accessory body 4 to press against the outer wall of the outer sheath 2. During this compression, the outer sheath 2 can move toward the gap cavities 24 due to the provision of the gap cavities 24, preventing the conductors 3 inside the inner sheath 1 from being damaged by excessive pressure.

[0038] like Figure 4 As shown, the auxiliary component body 4 includes an extension block 41, which is inserted into the outer cladding 2. During installation, a through hole 23 is drilled in the outer cladding 2, located near the end of the outer cladding 2. The extension block 41 is inserted into the through hole 23. The outer diameter of the extension block 41 is slightly larger than the inner diameter of the through hole 23, forming a clamping force. During insertion, a hard plate is inserted into the gap cavity 24 to abut the inner wall of the extension slot 213, thereby facilitating the insertion of the extension block 41.

[0039] like Figure 4 As shown, the slot 13 is inserted with the insert 6, and the two side walls of the slot 13 press the two side walls of the insert 6. Specifically, Figure 4 、 Figure 6 The insert 6 includes a second inclined surface 61 and a third inclined surface 62. The second inclined surface 61 and the third inclined surface 62 are arranged in pairs. The distance between the two second inclined surfaces 61 is L1, and L1 changes with the taper of the inclined surface. The distance between the two third inclined surfaces 62 is L2, and L2 also changes with the taper of the inclined surface. Figure 4 In the example, the spacing L1 between the two second bevels 61 matches the spacing L2 between the two first bevels 131. In the same cross-section, the spacing L1 between the two second bevels 61 is greater than the spacing L2 between the two third bevels 62. When the insert 6 is inserted into the first slot 13, the third bevel 62 is inserted parallel to the first bevel 131. Because L2 is slightly smaller than the spacing L2 between the two first bevels 131, the insert 6 is easily inserted into the first slot 13. The insert 6 is then rotated to align the second bevel 61 with the first bevel 131. The second bevels 61 slightly spread the first bevel 131 apart, creating a tight fit between the second bevel 61 and the first bevel 131.

[0040] Since both the inner and outer covering layers 1 and 2 are made of rubber, it is difficult to ensure the dimensional accuracy of the groove body 13 during molding. Therefore, the two second inclined surfaces 61 and the two third inclined surfaces 62 are provided at different intervals to prevent insertion difficulties. At the same time, the provision of the through hole 23 also helps to spread the inclined surfaces 131 on both sides of the groove body 13, which is also for the convenience of installing the insert 6.

[0041] The accessory body 4 is mounted with a fastener 5, which passes through the accessory body 4 and is threadedly inserted into the insert 6. The fastener 5 and the accessory body 4 are not radially compressed. If the accessory body 4 is pulled away from the inner cladding 1, the fastener 5 prevents it from pulling away. After the fastener 5 reaches the bottom of the insert 6's threads, continued tightening of the fastener 5 causes the insert 6 to rotate, forcing the second bevel 61 and the first bevel 131 to abut against each other.

[0042] A process for installing cable accessories includes the following steps:

[0043] ① Such as Figure 2 As shown, holes are drilled on the left and right sides of the outer cladding 2 to form through holes 23 on both sides of the outer cladding 2.

[0044] ② Insert the insert 6 into the slot 13 from the end of the inner cladding 1. During insertion, the bevel 3 62 abuts the corresponding bevel 131. To facilitate insertion of the insert 6 into the slot 13, a tool can be used to extend through the through hole 23 and expand the slot 13. After insertion, the insert 6 is aligned with the through hole 23.

[0045] ③ Install the auxiliary component body 4, connect the two auxiliary component bodies 4 and insert them into the outer layer 2, and directly fix the extension blocks 42 of the two auxiliary component bodies 4 with bolts, and press the inner wall of the auxiliary component body 4 against the outer wall of the outer layer 2.

[0046] ④ Install the fastener 5, which is threadedly connected and inserted into the insert 6. After the fastener 5 is screwed to the bottom of the thread of the insert 6, continue to rotate the fastener 5 so that the fastener 5 drives the insert 6 to rotate, and the second bevel 61 rotates to the original position of the third bevel 62, thereby forming a state in which the second bevel 61 and the first bevel 131 are tightly attached to each other. Since the distance L1 between the two second bevels 61 is greater than the distance L2 between the two third bevels 62, the clamping force of the first bevel 131 on the insert 6 is increased.

[0047] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, various improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A cable, characterized in that: The invention comprises an inner cladding (1), wherein the inner cladding (1) is wrapped with a conductor (3), wherein the conductor (3) penetrates into the inner cladding (1) axially along the inner cladding (1), wherein the outer wall of the inner cladding (1) is wrapped with an outer cladding (2), wherein the inner cladding (1) penetrates into the outer cladding (2), wherein the inner cladding (1) and the outer cladding (2) are coaxially arranged, wherein the inner cladding (1) is provided with a groove body (13), wherein the groove body (13) is located on both sides of the inner cladding (1), wherein the groove body (13) penetrates through the inner cladding (1) axially along the inner cladding (1), wherein the inner cladding (1) comprises two outer wall surfaces (12) located on both sides, wherein the groove body (13) penetrates through the two outer wall surfaces (12); The outer cladding (2) includes a second groove body (21), and the outer wall surface of the inner cladding (1) and the wall surface of the second groove body (21) are in close contact with each other; The inner cladding (1) includes outer wall surfaces (11) located on both sides, the line connecting the two outer wall surfaces (11) is perpendicular to the line connecting the two outer wall surfaces (12), the outer wall surface (11) is a straight surface, and the outer wall surface (12) is an arc surface, and the trough body (21) includes inner wall surface (211) and inner wall surface (212), the inner wall surface (211) and the outer wall surface (11) are in close contact with each other, and at least part of the inner wall surface (212) and the outer wall surface (12) are in close contact with each other; The outer cladding (2) further comprises an extension groove (213), the extension groove (213) being located on both sides of the second groove body (21), the extension groove (213) being in communication with the second groove body (21), the extension groove (213) being in communication with the first groove body (13), and a gap cavity (24) being formed between the wall surface of the extension groove (213) and the second outer wall surface (12).

2. A cable according to claim 1, characterized in that: The groove body (13) is provided with an inclined surface (131), and the inclined surface (131) gradually tilts toward the side of the outer wall surface (11) closest to the inner cladding (1) along the axis direction.

3. An auxiliary component installation structure for a cable according to any one of claims 1-2, characterized in that: Auxiliary parts bodies (4) are installed on both sides of the outer covering layer (2), and the two auxiliary parts bodies (4) are connected to each other so that the inner wall of the auxiliary parts body (4) presses the outer wall of the outer covering layer (2). The groove body (13) is inserted with an insert (6), and the side walls of the groove body (13) press the side walls of the insert (6). The auxiliary parts body (4) is installed with a fastener (5), and the fastener (5) passes through the auxiliary parts body (4) and is threadedly connected and inserted into the insert (6).

4. The auxiliary component installation structure for a cable according to claim 3, characterized in that: The auxiliary component body (4) includes an extension block (41), and the extension block (41) is inserted into the outer covering layer (2).

5. The auxiliary component installation structure for a cable according to claim 3, characterized in that: The insert (6) includes a second inclined surface (61) located on both sides, and the second inclined surface (61) is in close contact with the wall surface of the first trough body (13).

6. An installation process for the cable accessory installation structure according to claim 5, characterized in that: The specific process steps include: ① drilling holes on both sides of the outer cladding (2) to form through holes (23) on both sides of the outer cladding (2); ② Insert the insert (6) into the slot body 1 (13) from the end of the inner cladding (1). During the insertion, the inclined surface 3 (62) fits the corresponding inclined surface 1 (131). After the insertion, the insert (6) faces the through hole (23). ③ Install the auxiliary component main body (4), the two auxiliary component main bodies (4) are butted together and inserted into the outer layer (2), and the inner wall of the auxiliary component main body (4) is pressed against the outer wall of the outer layer (2); ④ Install the fastener (5), the fastener (5) is threadedly connected and inserted into the insert (6), and after the fastener (5) is screwed to the bottom of the thread of the insert (6), the fastener (5) is continuously rotated so that the fastener (5) drives the insert (6) to rotate, thereby forming a state in which the second inclined surface (61) and the first inclined surface (131) are in close contact with each other.

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