Spliceable cable laying protection pipe

Abstract

The utility model relates to cable laying protection pipe fitting technical field, concretely is a spliced cable laying protection pipe fitting, including cable main part, the outside of adjacent cable main part junction is provided with connecting assembly, two locking assemblies are provided on the connecting assembly symmetry, the clamping assembly for locking is provided between adjacent protection assembly end, in the utility model, through the clamping and fixing of cable end portion in the connecting sleeve when multiple clamping blocks contract to the inboard simultaneously, then utilize multiple first screw rod to fasten the corresponding first fixed ear of both sides, under the pull together of one screw rod to both sides connecting sleeve, the tensile effect of two cable main part joint is promoted, when cable maintenance, only need to remove the protection assembly outside the cable of trouble place, only need to remove the clamping assembly fixed with both ends when fixed point removal can open the protection assembly to the cable trouble position maintenance and overhaul, and the overhaul is more convenient.

Description

Technical Field

[0001] This utility model relates to the technical field of cable laying protective pipe fittings, specifically a splicing cable laying protective pipe fitting. Background Technology

[0002] With the rapid development of the electric vehicle industry, charging piles, as a key infrastructure, have seen their construction scale and coverage density continue to expand. Construction standardization and cost control have become the core demands for industry promotion. In the construction of charging piles, cable laying, as a key link connecting the power supply system and equipment terminals, directly affects the safety of equipment operation and the service life of cables due to its protection quality.

[0003] Currently, cable laying protection mainly involves using protective conduits to isolate the cable from the external environment and provide auxiliary support. For example, a Chinese patent with publication number CN219394386U discloses a cable laying protection pipe that uses concentric inner and outer protective pipes and several connecting buffer components to provide double-layer protection and buffer pressure relief. This greatly improves the pressure resistance and service life of the cable protection pipe, making it less prone to damage and thus providing protection.

[0004] In the aforementioned literature, cables are often spliced ​​due to insufficient length during installation, and multiple cables are sometimes laid in parallel. Cable joints are weak points in conductor connections. During cable laying, the cables are pulled, and existing protective pipes cannot secure the joints. Consequently, excessive tension during installation can easily cause the joints to loosen, affecting cable safety. Furthermore, existing cable laying protective pipes are inconvenient to disassemble and reassemble for later maintenance, making it impossible to remove individual sections for localized cable repairs. This inconvenience and damage to the overall pipe structure can increase maintenance costs. Therefore, a spliced ​​cable laying protective pipe is proposed to address these issues. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology and address the problems existing in the existing technology, this utility model proposes a splicing cable laying protective pipe fitting.

[0006] The technical solution adopted by this utility model to solve its technical problem is: the splicing cable laying protection pipe of this utility model includes a cable body, a connecting component is provided on the outside of the connection of adjacent cable bodies, two locking components are symmetrically arranged on the connecting component, and the working ends of the two locking components extend into the connecting component and clamp the ends of adjacent cable bodies respectively.

[0007] The cable body is provided with uniformly distributed protective components along its laying direction, and a locking snap-fit ​​component is provided between the ends of adjacent protective components, and a locking snap-fit ​​component is also provided between the two ends of the connecting component and the ends of the adjacent protective components.

[0008] The connecting assembly includes two connecting sleeves respectively disposed at the ends of adjacent cable bodies. Each of the two connecting sleeves has a sliding cavity at its opposite port, and a sliding sleeve is slidably disposed in both of the opposite sliding cavities. The sliding sleeve is located outside the connection point of the adjacent cable bodies. Each of the two connecting sleeves is fixed with a first fixing lug evenly distributed thereon, and a first screw for fastening is disposed between the first fixing lugs on both sides.

[0009] Preferably, threaded sleeves are threadedly connected to opposite ports of the two connecting sleeves, and a No. 1 end plate is fixedly connected to the end of each threaded sleeve. The threaded sleeve and the No. 1 end plate are both formed by splicing two corresponding semicircular parts. Positioning holes and positioning pins are provided at the splicing points of the two parts of the threaded sleeve for positioning.

[0010] Preferably, the locking assembly includes a fixed disk fixed to the connecting sleeve, a rotating disk rotatably disposed on the side of the fixed disk, and the rotating disk rotatably mounted on the outside of the connecting sleeve. The fixed disk has evenly distributed strip grooves on its side, and the rotating disk has arc grooves on its side that correspond to the multiple strip grooves.

[0011] Preferably, the locking assembly includes clamping blocks evenly distributed on the outer side of the cable body, each clamping block is fixedly connected to a pull rod, and the ends of the pull rods are all slidably disposed on the outer side of the connecting sleeve. The multiple clamping blocks are all attached to the outer wall of the cable body. A connecting rod is fixedly connected between the ends of two pull rods located on the same clamping block, and each connecting rod is simultaneously disposed in the corresponding strip groove and arc groove.

[0012] Preferably, the fixed disk has evenly distributed No. 2 pin holes on its side, the rotating disk has a No. 1 pin hole on its side, and a No. 2 screw is provided through both the No. 1 pin hole and its corresponding No. 2 pin hole.

[0013] Preferably, the protective component includes an inner sleeve, an outer sleeve is provided on the outside of the inner sleeve, and uniformly distributed support ribs are fixed between the inner sleeve and the outer sleeve. The gap between the inner sleeve and the outer sleeve is filled with lightweight fireproof filler particles such as fly ash and slag. A second end plate is fixed to the end of both the inner sleeve and the outer sleeve. A sealing ring is fixed to the end face of the second end plate. The inner sleeve, the outer sleeve, and the second end plate are all spliced ​​together from two corresponding semicircular parts. The splicing points of the corresponding two semicircular parts of the inner sleeve, the outer sleeve, and the support ribs are all provided with interlocking teeth.

[0014] Preferably, the snap-fit ​​assembly includes two semi-circularly spliced ​​clamps, which are snapped onto the outer sides of two adjacent No. 2 end plates. Each of the two semi-circular splicing ends of the clamps is fixed with a No. 2 fixing lug, and a No. 3 screw for fastening is provided between the two corresponding No. 2 fixing lugs. The No. 1 end plate in the connecting assembly and the No. 2 end plate in the adjacent protective assembly are both snapped and fixed by the semi-circularly spliced ​​clamps. The inner side of the clamp is provided with two inclined surfaces, and the cross-sectional edges of the two inclined surfaces are inclined inward and fit against the adjacent No. 2 end plates.

[0015] The advantages of this utility model are:

[0016] 1. This utility model involves attaching a connecting component to the outside of one of the cable ends. After the cables are connected, the two connecting sleeves are moved to the outside of the ends of the two cables respectively. When multiple clamping blocks retract inward simultaneously, the cable ends located inside the connecting sleeves are clamped and fixed. Then, multiple No. 1 screws are used to tighten the corresponding No. 1 fixing ears on both sides. At this time, under the clamping and fixing of the two locking components, the distance between the two connecting sleeves is fixed. Furthermore, under the pull of the No. 1 screws on the connecting sleeves on both sides, the tensile strength at the joint of the two cable bodies is improved, so as to avoid the cable joint from loosening due to excessive tension during cable laying and to ensure the safety of cable use.

[0017] 2. This utility model allows for cable maintenance by simply removing the protective components on the outside of the cable at the fault location. For point removal, the protective components can be opened by disassembling the snap-fit ​​components fixed at both ends, so as to inspect and maintain the cable fault location. The components can also be reused after maintenance, thus avoiding the overall disassembly that would increase maintenance costs and making inspection and maintenance more convenient. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the first three-dimensional structure in this embodiment;

[0020] Figure 2 This is a cross-sectional enlarged schematic diagram of the main structure of the connecting component and the locking component in this embodiment;

[0021] Figure 3 This is a cross-sectional enlarged schematic diagram of the main mounting structure of the locking component in this embodiment;

[0022] Figure 4 This is a cross-sectional enlarged view of the main structure of the connecting component in this embodiment;

[0023] Figure 5 This is a cross-sectional enlarged schematic diagram of the main structure of the protective component in this embodiment.

[0024] In the diagram: 1. Cable body;

[0025] 2. Connecting assembly; 21. Connecting sleeve; 22. Sliding cavity; 23. Sliding sleeve; 24. Fixing lug No. 1; 25. Screw No. 1; 26. Threaded sleeve; 27. Positioning hole; 28. Positioning pin; 29. ​​End plate No. 1;

[0026] 3. Locking assembly; 31. Fixed plate; 32. Rotating plate; 33. Strip groove; 34. Arc groove; 35. Connecting rod; 36. Pull rod; 37. Clamping block; 38. No. 1 pin hole; 39. No. 2 pin hole; 310. No. 2 screw;

[0027] 4. Protective components; 41. Inner sleeve; 42. Outer sleeve; 43. Support rib; 44. No. 2 end plate; 45. Engaging teeth;

[0028] 5. Clip-on assembly; 51. Clamp; 52. Second fixing lug; 53. Third screw. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0030] Please see Figure 1-5As shown, a splicing cable laying protective pipe includes a cable body 1, a connecting component 2 is provided on the outside of the connection of adjacent cable bodies 1, and two locking components 3 are symmetrically arranged on the connecting component 2, and the working ends of the two locking components 3 extend into the connecting component 2 and clamp the ends of adjacent cable bodies 1 respectively.

[0031] The cable body 1 is provided with uniformly distributed protective components 4 along its laying direction, and a locking snap-fit ​​component 5 is provided between the ends of adjacent protective components 4, and a locking snap-fit ​​component 5 is also provided between the two ends of the connecting component 2 and the ends of adjacent protective components 4.

[0032] The connecting assembly 2 includes two connecting sleeves 21 respectively disposed at the ends of adjacent cable bodies 1. Each of the two connecting sleeves 21 has a sliding cavity 22 at its opposite port, and a sliding sleeve 23 is slidably disposed in both of the two opposite sliding cavities 22. The sliding sleeve 23 is located outside the connection of the adjacent cable bodies 1. Each of the two connecting sleeves 21 is fixed with a first fixing lug 24 evenly distributed, and a first screw 25 for fastening is disposed between the first fixing lugs 24 on both sides.

[0033] Both of the two connecting sleeves 21 have threaded sleeves 26 threadedly connected to their opposite ports. Each threaded sleeve 26 has a first end plate 29 fixedly attached to its end. Both the threaded sleeve 26 and the first end plate 29 are formed by splicing two corresponding semicircular parts. The splicing point of the two parts of the threaded sleeve 26 is provided with a positioning hole 27 and a positioning post 28 for positioning.

[0034] The locking assembly 3 includes a fixed disk 31 fixed to the connecting sleeve 21. A rotating disk 32 is rotatably disposed on the side of the fixed disk 31, and the rotating disk 32 is rotatably mounted on the outside of the connecting sleeve 21. The fixed disk 31 has evenly distributed strip grooves 33 on its side, and the rotating disk 32 has arc grooves 34 on its side that correspond to the multiple strip grooves 33.

[0035] The locking assembly 3 includes clamping blocks 37 evenly distributed on the outside of the cable body 1. Each clamping block 37 is fixedly connected to a pull rod 36, and the ends of the pull rods 36 are all through and slidably disposed on the outside of the connecting sleeve 21. Multiple clamping blocks 37 are attached to the outer wall of the cable body 1. A connecting rod 35 is fixedly connected between the ends of two pull rods 36 located on the same clamping block 37, and each connecting rod 35 is simultaneously disposed through the corresponding strip groove 33 and arc groove 34.

[0036] The fixed disk 31 has evenly distributed second pin holes 39 on its side, and the rotating disk 32 has a first pin hole 38 on its side. A second screw 310 is installed through both the first pin hole 38 and the corresponding second pin hole 39.

[0037] The protective component 4 includes an inner sleeve 41, an outer sleeve 42 is provided on the outside of the inner sleeve 41, and evenly distributed support ribs 43 are fixed between the inner sleeve 41 and the outer sleeve 42. The gap between the inner sleeve 41 and the outer sleeve 42 is filled with lightweight fireproof filler particles such as fly ash and slag. A second end plate 44 is fixed to the end of both the inner sleeve 41 and the outer sleeve 42. A sealing ring is fixed to the end face of the second end plate 44. The inner sleeve 41, the outer sleeve 42 and the second end plate 44 are all spliced ​​together from two corresponding semicircular parts. The splicing points of the corresponding two semicircular parts of the inner sleeve 41, the outer sleeve 42 and the support ribs 43 are all provided with interlocking teeth 45.

[0038] The snap-fit ​​assembly 5 includes two semi-circularly spliced ​​clamps 51, which are snapped onto the outer sides of two adjacent second end plates 44. Each of the two semi-circular splicing ends of the clamps 51 is fixed with a second fixing ear 52, and a third screw 53 for fastening is provided between the two corresponding second fixing ears 52. The first end plate 29 in the connecting assembly 2 and the second end plate 44 in the adjacent protective assembly 4 are both snapped and fixed by the semi-circularly spliced ​​clamps 51. The inner side of the clamps 51 is provided with two inclined surfaces, and the cross-sectional edges of the two inclined surfaces are inclined inward and attached to the adjacent second end plates 44.

[0039] During operation, cables are often spliced ​​due to insufficient length, and multiple cables are sometimes laid side-by-side. Cable joints are weak points in conductor connections. The pulling action during cable laying, coupled with the inability of existing protective conduits to secure the joints, makes them prone to loosening due to excessive tension, compromising cable safety. Furthermore, existing cable protection conduits are inconvenient for later maintenance, hindering the ability to disassemble and reassemble sections for localized cable repairs. This inconvenience, coupled with the increased maintenance costs due to structural damage, further complicates the process. In this scheme, when connecting adjacent cables, the connecting component 2 is first sleeved on the outside of one cable end, and then the two adjacent cables are connected. After the cables are connected, the two connecting sleeves 21 are moved to the outside of the ends of the two cables respectively, and the distance between the two connecting sleeves 21 is adjusted to adjust the clamping position of the two locking components 3. When the distance between the two connecting sleeves 21 is adjusted, the sliding sleeve 23 will slide and extend within the sliding cavity 22 between the two connecting sleeves 21, thereby ensuring the protection of the cable joint. Then, the two locking components 3 are rotated to clamp the ends of the two cables respectively. When the fixing and locking assembly 3 clamps, the rotating disk 32 is rotated. When the rotating disk 32 rotates, it uses the arc-shaped groove 34 on its side to push the connecting rod 35, causing the connecting rod 35 to slide in the strip groove 33. The sliding of multiple connecting rods 35 in their respective strip grooves 33 causes the pull rods 36 connected to their ends to drive multiple clamping blocks 37 to expand outward or contract inward simultaneously. When multiple clamping blocks 37 contract inward simultaneously, the cable end located in the connecting sleeve 21 is clamped and fixed. Then, the second screw 310 is inserted and installed in a second screw corresponding to the first pin hole 38. The pin hole 39 is used to lock the fixed plate 31 and the rotating plate 32, so that the rotating plate 32 cannot rotate again, so as to ensure that the multiple clamping blocks 37 can always clamp the cable. Then, multiple No. 1 screws 25 are used to tighten the corresponding No. 1 fixing ears 24 on both sides. At this time, under the clamping and fixing of the two locking components 3, the distance between the two connecting sleeves 21 is fixed. Under the pull of the No. 1 screw 25 on the connecting sleeves 21 on both sides, the tensile strength of the two cable body 1 joints is improved, so as to avoid the cable joints from loosening due to excessive tension during cable laying, and to ensure the safety of cable use.

[0040] After the cable joint is secured using two locking components 3, two semi-circular threaded sleeves 26 are respectively fastened and spliced ​​onto the two cables, located at both ends of the connecting component 2. During splicing, the positioning pins 28 are fitted into the corresponding positioning holes 27 to ensure the continuity of the threads on the outer wall of the threaded sleeves 26. Then, the two spliced ​​threaded sleeves 26 are tightened into the ports of the two connecting sleeves 21. Finally, the protective component 4, consisting of two semi-circular splices, is installed along the cable laying direction, and the protective component 4 is spliced... The two semicircular splicing points are engaged with the interlocking teeth 45. Then, the two semicircular parts of the clamp 51 are spliced ​​together and clamped on the outside of the two adjacent No. 2 end plates 44 and the outside of the No. 2 end plate 44 adjacent to the No. 1 end plate 29. The two semicircular parts of the clamp 51 are fastened together by the No. 3 screw 53. Under the pressure of the two inclined surfaces on the inside of the clamp 51 on the adjacent No. 2 end plates 44, the adjacent No. 2 end plates 44 are tightly fitted together, and the two semicircular parts of the protective component 4 are spliced ​​and fixed to protect the cable.

[0041] Furthermore, during cable maintenance, it is only necessary to remove the protective component 4 on the outside of the cable at the fault location. When removing it at a fixed point, it is only necessary to disassemble the snap-fit ​​component 5 fixed at both ends to open the protective component 4, so as to inspect and maintain the cable fault location. It can also be reused after maintenance to avoid overall disassembly, which would increase maintenance costs, and inspection and maintenance are more convenient.

[0042] It achieves the function of cable laying protection, can tie and protect the cable joint, effectively avoids excessive tension during laying construction that may cause the joint to loosen, ensures the safety of cable use, and can be disassembled and maintained at fixed points, making maintenance construction more convenient and effectively avoiding the increase in maintenance costs caused by overall disassembly.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A splicing cable laying protective conduit, characterized in that: Includes a cable body (1), and a connecting component (2) is provided on the outside of the connection between adjacent cable bodies (1). Two locking components (3) are symmetrically arranged on the connecting component (2), and the working ends of the two locking components (3) extend into the connecting component (2) and are respectively clamped at the ends of adjacent cable bodies (1). The cable body (1) is provided with uniformly distributed protective components (4) along its laying direction, and a locking snap-fit ​​component (5) is provided between the ends of adjacent protective components (4), and a locking snap-fit ​​component (5) is also provided between the two ends of the connecting component (2) and the ends of adjacent protective components (4). The connecting assembly (2) includes two connecting sleeves (21) respectively disposed at the ends of adjacent cable bodies (1). Each of the two connecting sleeves (21) has a sliding cavity (22) at its opposite port. A sliding sleeve (23) is slidably disposed in both of the two opposite sliding cavities (22). The sliding sleeve (23) is located outside the connection of the adjacent cable bodies (1). Each of the two connecting sleeves (21) has a uniformly distributed first fixing lug (24) fixed on it. A first screw (25) for fastening is disposed between the first fixing lugs (24) on both sides.

2. The splicing cable laying protective conduit according to claim 1, characterized in that: Both of the two connecting sleeves (21) have threaded sleeves (26) threaded to their opposite ports. The ends of the threaded sleeves (26) are fixed to end plates (29). The threaded sleeves (26) and end plates (29) are formed by splicing two corresponding semicircular parts. The splicing points of the two parts of the threaded sleeves (26) are provided with positioning holes (27) and positioning pins (28) for positioning.

3. The spliced ​​cable laying protective conduit according to claim 1, characterized in that: The locking assembly (3) includes a fixed disk (31) fixed to the connecting sleeve (21), a rotating disk (32) is rotatably provided on the side of the fixed disk (31), and the rotating disk (32) is rotatably installed on the outside of the connecting sleeve (21). The fixed disk (31) has evenly distributed strip grooves (33) on its side, and the rotating disk (32) has arc grooves (34) corresponding to the multiple strip grooves (33) on its side.

4. The splicing cable laying protective conduit according to claim 1, characterized in that: The locking assembly (3) includes clamping blocks (37) evenly distributed on the outside of the cable body (1). Each clamping block (37) is fixedly connected to a pull rod (36), and the ends of the pull rods (36) are all slidably disposed on the outside of the connecting sleeve (21). Multiple clamping blocks (37) are attached to the outer wall of the cable body (1). The ends of two pull rods (36) located on the same clamping block (37) are respectively fixedly connected to a connecting rod (35), and each connecting rod (35) is simultaneously disposed in the corresponding strip groove (33) and arc groove (34).

5. A spliced ​​cable laying protective conduit according to claim 3, characterized in that: The fixed disk (31) has evenly distributed second pin holes (39) on its side, and the rotating disk (32) has a first pin hole (38) on its side. A second screw (310) is installed through the first pin hole (38) and the corresponding second pin hole (39).

6. A spliced ​​cable laying protective conduit according to claim 1, characterized in that: The protective component (4) includes an inner sleeve (41), an outer sleeve (42) is provided on the outside of the inner sleeve (41), and evenly distributed support ribs (43) are fixed between the inner sleeve (41) and the outer sleeve (42). The gap between the inner sleeve (41) and the outer sleeve (42) is filled with lightweight fireproof filler particles. The ends of the inner sleeve (41) and the outer sleeve (42) are both fixed with a second end plate (44). A sealing ring is fixed on the end face of the second end plate (44). The inner sleeve (41), the outer sleeve (42) and the second end plate (44) are all spliced ​​together by two corresponding semicircular parts. The splicing points of the corresponding two semicircular parts of the inner sleeve (41), the outer sleeve (42) and the support rib (43) are all provided with interlocking teeth (45).

7. A splicing cable laying protective conduit according to claim 1, characterized in that: The snap-fit ​​assembly (5) includes two semi-circular spliced ​​clamps (51), and the clamps (51) are snapped onto the outside of two adjacent second end plates (44). The two semi-circular splicing ends of the clamps (51) are fixed with second fixing ears (52), and a third screw (53) for fastening is provided between the two corresponding second fixing ears (52). The first end plate (29) in the connecting assembly (2) and the second end plate (44) in the adjacent protective assembly (4) are both snapped and fixed by the semi-circular spliced ​​clamps (51). The inner side of the clamps (51) is provided with two inclined surfaces, and the cross-sectional edges of the two inclined surfaces are inclined inward and attached to the adjacent second end plates (44).

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