Protective sleeve and wire protection device

Abstract

The present invention provides a protective sleeve, comprising an upper cover and a lower cover which cover wires, wherein the upper cover and the lower cover are both integrated corrugated hoses having a corrugated contour, and the corrugated contour has flexibility so as to enable the protective sleeve to bend towards one side of the upper cover at a curvature not smaller than a defined curvature; the upper cover and the lower cover have similarly shaped corrugated contours, and each wave crest of the corrugated contours of the upper cover and the lower cover comprises bilaterally symmetrical wave-crest flank parts and a wave-crest middle part located between the wave-crest flank parts; and stoppers are provided on the outer side surfaces of the wave-crest flank parts of the lower cover, and adjacent stoppers abut against each other to limit the sagging of the protective sleeve in a non-bent state. By means of the protective sleeve provided in the present invention, the protective sleeve can have a smaller width and a smaller bending radius, and thus the protective sleeve is more suitable for wire protection applications in narrow spaces.

Description

Protective casing and pipeline protection device Technical Field

[0001] The present invention relates to the technical field of pipeline guiding, and in particular to a protective sleeve and a pipeline protection device. Background Art

[0002] In modern industrial production, pipeline guide devices have become an indispensable component of electrical equipment. They are used to guide and protect the movement of equipment pipelines, ensuring movement in the same direction while preventing the pipelines from becoming entangled and worn.

[0003] For sports equipment, cables such as power cables, control cables, and fluid pipelines are essential components, providing energy, power, and signals for equipment operation and control. As the world enters the era of intelligent and advanced manufacturing, demanding cable protection systems have emerged. Increasingly sophisticated equipment requires more cable protection and confinement within ever-tighter spaces.

[0004] Existing pipeline protection systems do not have a good solution to the above requirements. Therefore, how to provide a pipeline protection system with a narrower width and smaller bending radius is an urgent problem in the industry.

[0005] Summary of the Invention

[0006] The protective sleeve and pipeline protection device provided by the present invention are used to solve the problem in the prior art that it is impossible to provide a pipeline protection system with a narrower width and a smaller bending radius.

[0007] The purpose of the present invention can be achieved by the following technical measures:

[0008] The present invention provides a protective sleeve for protecting a pipeline. The protective sleeve includes an upper cover and a lower cover that wrap the pipeline. The upper cover and the lower cover are both integral corrugated hoses with a corrugated profile formed by alternating crests and troughs. The corrugated profile is flexible, allowing the protective sleeve to bend toward one side of the upper cover with a curvature not less than a specified value. The upper cover and the lower cover have corrugated profiles of similar shapes. The crests contained in the corrugated profiles of the upper cover and the lower cover include left and right symmetrical crest flanks and a crest middle section located between the crest flanks. The outer surface of the crest flanks of the lower cover is provided with a stopper, and adjacent stops conflict with each other to limit the sagging of the protective sleeve in a non-bent state.

[0009] Furthermore, the stopper is provided along the side of the crest from one end close to the middle portion of the crest to the other end opposite thereto, and the cross section of the stopper and the protective sleeve along its longitudinal direction forms an inclination angle, which is not less than 1°.

[0010] Furthermore, the ratio of the width to the height of the cross section of the protective sleeve is greater than or equal to 1.2.

[0011] Furthermore, the stopper is "T"-shaped; the "T"-shaped upper end of the stopper is arranged at one end of the side abdomen of the crest near the middle part of the crest, and the length of the "T"-shaped upper end is greater than or equal to the spacing between adjacent crests.

[0012] Furthermore, the crests of the corrugated profiles of the upper cover and the lower cover are in an inverted "U" shape; the inverted "U"-shaped crests of the upper cover and the lower cover narrow from their tops to both sides; and the spacing between adjacent inverted "U"-shaped crests of the upper cover and the lower cover is 4mm to 8mm.

[0013] Furthermore, the wave crest flanks contained in the wave crest of the upper cover are the same as the wave crest flanks contained in the wave crest of the lower cover, and the wave crest middle section contained in the wave crest of the upper cover is the same as the wave crest middle section contained in the wave crest of the lower cover; the wave crest flanks contained in the corrugated profiles of the upper cover and the lower cover are gradually inclined from one end near the wave crest middle section toward the central axis of the protective sleeve; and, as they are inclined, the lateral width of the wave crest flanks gradually becomes smaller.

[0014] Furthermore, as the transverse width of the flanks of the crests gradually decreases, the spacing between the flanks of adjacent crests gradually increases, but is limited to being less than or equal to 7 mm.

[0015] Furthermore, the upper cover and the lower cover are buckled and connected up and down, and the connection point is the central axis of the protective sleeve.

[0016] Furthermore, the thickness of the trough in the corrugated profile is smaller than the thickness of the peak.

[0017] Furthermore, the thickness of the wave crest is 0.8 to 1.4 mm.

[0018] Furthermore, the thickness of the trough is 0.5 to 1.0 mm.

[0019] Furthermore, the crest side abdomens on both sides of the upper cover extend vertically outward away from one end of the crest middle section to form upper cover side wings, and the crest side abdomens on both sides of the lower cover extend vertically outward away from one end of the crest middle section to form lower cover side wings; the upper cover side wings and the lower cover side wings are meshed with each other.

[0020] Furthermore, the upper cover side wings and the lower cover side wings that are meshed with each other form a central axis surface of the protective sleeve; the thickness of the central axis surface does not exceed 4 mm.

[0021] The present invention provides a protective sleeve for protecting pipelines. The protective sleeve includes an upper cover and a lower cover that wrap the pipeline. Both the upper cover and the lower cover are integrally formed into a corrugated hose with a corrugated profile formed by alternating crests and troughs. The corrugated profile is flexible, allowing the protective sleeve to bend toward the upper cover at a curvature not less than a specified value. The upper and lower covers have similar corrugated profiles. The crests of the corrugated profiles of the upper and lower covers include left and right symmetrical crest flanks and a crest midsection located between the crest flanks. Stoppers are provided on the outer surfaces of the crest flanks of the lower cover, and adjacent stops abut against each other, thereby limiting the sagging of the protective sleeve when not bent. The protective sleeve provided by the present invention strengthens the support and strength of the outer side of the corrugated hose-type protective sleeve by arranging the stoppers on the crest flanks of the crests of the corrugated profile of the lower cover. This allows the protective sleeve to be made narrower, thereby achieving a smaller width and a smaller bending radius, making it more suitable for pipeline protection applications in narrow spaces.

[0022] The present invention also provides a pipeline protection device, wherein a movably mounted fixed joint is provided at both ends of any of the above-mentioned protective sleeves; the pipeline wrapped in the protective sleeve passes through the interior of the fixed joint.

[0023] Furthermore, the fixed joint includes two opposing sub-joints, which are buckled together to form a groove in which the protective sleeve can be placed; a clip is provided at the end of the sub-joint, which cooperates with the trough in the corrugated profile of the protective sleeve and relies on the protrusion of the crest to clamp the protective sleeve.

[0024] Furthermore, a wire locking piece is provided on one end of the fixed joint away from the protective sleeve; the pipeline passing through the fixed joint is fixed and locked with the wire locking piece.

[0025] Furthermore, it also includes a splitter; the splitter includes a first end that engages with the inner wall of the protective sleeve, and a second end that engages with the inner wall of the fixed joint; a cable compartment is provided through the first end and the second end, which is used to separate and organize the pipelines passing through the protective sleeve along the longitudinal direction.

[0026] The pipeline protection device provided by the present invention is provided with a movably mounted fixed joint at both ends of any of the protective sleeves mentioned above; the pipeline wrapped in the protective sleeve passes through the interior of the fixed joint. The pipeline protection device provided by the present invention is used, by setting the stopper on the side of the crest of the crest contained in the corrugated profile of the lower cover on the protective sleeve, while strengthening the support and strength of the outer side of the corrugated hose-type protective sleeve, the protective sleeve can be made narrower, thereby achieving a smaller width and a smaller bending radius for the protective sleeve, making it more suitable for pipeline protection applications in narrow spaces. At the same time, the fixing of the end of the protective sleeve by the movably mounted fixed joint not only facilitates the fixing and combing of the end of the pipeline, but also prevents the protective sleeve from loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] FIG1 is a typical application principle diagram of the protective sleeve of the present invention;

[0028] FIG2 is a schematic structural diagram of a protective sleeve provided by an embodiment of the present invention in a bent state facing the upper cover;

[0029] FIG3 is a schematic structural diagram of the protective sleeve provided by an embodiment of the present invention when the lower cover opening is placed downward;

[0030] FIG4 is a partially enlarged structural diagram of the protective sleeve provided by an embodiment of the present invention when the lower cover opening is placed downward;

[0031] FIG5 is a schematic structural diagram of the protective sleeve provided by an embodiment of the present invention when the lower cover opening is placed upward;

[0032] FIG6 is a schematic structural diagram of the protective sleeve provided by an embodiment of the present invention when the upper cover opening is placed downward;

[0033] 7 is a schematic structural diagram of a cross section of the protective sleeve provided by an embodiment of the present invention when the upper cover opening is placed downward;

[0034] FIG8 is a schematic structural diagram of the protective sleeve provided by an embodiment of the present invention when the upper cover opening is placed upward;

[0035] 9 is a schematic side view of the structure of the protective sleeve provided by an embodiment of the present invention when the upper cover opening is placed downward;

[0036] 10 is a schematic structural diagram of a protective sleeve provided in an embodiment of the present invention in an extended state with the lower cover at the bottom;

[0037] FIG11 is a schematic cross-sectional view of a protective sleeve provided in an embodiment of the present invention;

[0038] 12 is a schematic structural diagram of a cross section of the protective sleeve provided in an embodiment of the present invention when the lower cover opening is placed upward;

[0039] FIG13 is a partial truncated view from a top view of a protective sleeve provided by an embodiment of the present invention;

[0040] 14 is a schematic longitudinal sectional view of the protective sleeve provided in an embodiment of the present invention in an extended state parallel to the motion plane;

[0041] FIG15 is a partial enlarged view of portion I taken in FIG14;

[0042] FIG16 is a partial truncated schematic diagram of a side view of a protective sleeve provided by an embodiment of the present invention;

[0043] FIG17 is a partial truncated schematic diagram of a top view of the protective sleeve provided by an embodiment of the present invention when the upper cover opening is placed downward;

[0044] FIG18 is a schematic diagram showing the axial side structure of the protective sleeve provided in an extended state with the lower cover at the top according to an embodiment of the present invention;

[0045] FIG19 is a schematic diagram of the overall structure of a pipeline protection device provided in an embodiment of the present invention;

[0046] FIG20 is an exploded view of the structure of a pipeline protection device provided in an embodiment of the present invention;

[0047] FIG21 is an exploded view of the structure of a pipeline protection device including a splitter provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0049] To provide a more complete and detailed description of this disclosure, the following illustrative descriptions of embodiments and examples of the present invention are provided; however, these descriptions are not intended to be the only ways to implement or use the embodiments of the present invention. The embodiments cover features of various embodiments, as well as the method steps and sequences for constructing and operating these embodiments. However, other embodiments may be used to achieve the same or equivalent functionality and sequence of steps.

[0050] Figure 1 schematically shows the working principle of the protective sleeve. The protective sleeve seals and wraps around the pipeline. One or both ends along the longitudinal direction are fixed to the equipment. Both ends can be stationary, or one end can be stationary and the other end can move, or both ends can move. When in motion, the protective sleeve bends in one direction with a curvature not less than a specified value, and cannot bend in other directions. As shown in the schematic diagram, one end of the protective sleeve 1 is fixed at point A, and the other end is fixed at point B. Point A is fixed and stationary, and point B moves with the equipment. As indicated by the dotted line, the protective sleeve 1 is located at one end of point B and bends to point C within the specified curvature range.

[0051] Referring to Figures 2 through 10 , a protective sleeve 1 provided in an embodiment of the present invention comprises a lower cover 11 and an upper cover 12 for enclosing the pipeline. The upper cover 12 and the lower cover 11 are movably connected. In an optional embodiment, the upper cover 12 and the lower cover 11 are snap-fitted together. The lower cover 11 and the upper cover 12 form a one-piece corrugated hose with alternating peaks and troughs forming a corrugated profile. This corrugated profile is flexible, allowing the protective sleeve to bend toward the upper cover 12 at a curvature not less than a specified value.

[0052] The lower cover 11 and the upper cover 12 have similarly shaped corrugated profiles. The crest 121 contained in the upper cover 12 includes left and right symmetrical crest flanks 1211, and a crest middle section 1212 located between the crest flanks 1211. The crest 111 contained in the corrugated profile of the lower cover 11 includes left and right symmetrical crest flanks 1111, and a crest middle section 1112 located between the crest flanks 1111. It should be noted that the crest middle section contained in the crest profile in the scheme of the present invention refers to a section of the crest that is substantially parallel or completely parallel to the cross-section of the protective sleeve along its longitudinal direction, and the crest flanks refer to a section of the crest that is connected to the crest middle section and begins to bend in an arc toward both sides of the crest profile.

[0053] Unlike the corrugated flanks 1211 of the upper cover 12, the outer surface of the corrugated flanks 1111 of the lower cover 11 is provided with stops 114, and adjacent stops 114 interfere with each other, limiting the sagging of the protective sleeve when it is not bent. Due to the limitation of the radial curvature of the corrugated profile of the corrugated hose, when the width of the corrugated hose cross section is reduced and the corrugated profile is designed to tend to a right angle, the corrugated hose is prone to internal stress, resulting in insufficient support force for the corrugated hose. In the embodiment of the present invention, by providing the stops 114 on the corrugated flanks 1111 of the lower cover 11, not only can the protective sleeve meet the support force requirements under longer travel, but the width of the cross section of the protective sleeve can also be made smaller, thereby achieving a smaller aspect ratio and allowing the protective sleeve to be made narrower.

[0054] Please refer to Figures 11 to 13. Based on the stopper 114 provided on the wave crest flank 1111 of the lower cover 11, the cross-section of the protective sleeve can achieve a smaller aspect ratio, but limitedly, the ratio of the width a to the height b of the cross-section of the protective sleeve is greater than or equal to 1.2. In an optional embodiment, the ratio of the width to the height of the cross-section of the protective sleeve is 1.53. The stopper 114 is provided along the wave crest flank 1111 of the lower cover 11 from one end close to the wave crest middle section 1112 to the other end opposite thereto, and the stopper 114 and the cross-section of the protective sleeve along its longitudinal direction are at an inclination angle of not less than 1°. In an optional embodiment, the inclination angle of the stopper 114 and the cross-section of the protective sleeve along its longitudinal direction is 5°. Further, referring to Figures 14 and 15 , stopper 114 is T-shaped, with the upper end of the T-shape disposed on one end of the corrugated flank 1111 of the lower cover 11, near the midsection 1112 of the corrugated flank. This is the top end of the corrugated flank 1111 of the lower cover 11. The length m of the upper end of the T-shape is greater than or equal to the spacing p between adjacent corrugated flanks 111 of the lower cover 11, thereby increasing the unsupported length of the protective sleeve. It is understood that the length m of the upper end of the T-shape is not infinite; rather, the upper limit of m must ensure that the upper ends of adjacent T-shapes of the stoppers 114 can interfere with each other, thereby limiting sagging of the protective sleeve when not bent.

[0055] The wave crests 121 of the upper cover 12 and the wave crests 111 of the lower cover 11 are in an inverted "U" shape. Both the inverted "U"-shaped wave crests 121 of the upper cover 12 and the inverted "U"-shaped wave crests 111 of the lower cover 11 taper from their tops toward the sides. The spacing between adjacent inverted "U"-shaped wave crests 121 of the upper cover 12 and the spacing between adjacent inverted "U"-shaped wave crests 111 of the lower cover 11 are both within a range of 4 mm to 8 mm. In an optional embodiment, the spacing between adjacent inverted "U"-shaped wave crests 121 of the upper cover 12 and the spacing between adjacent inverted "U"-shaped wave crests 111 of the lower cover 11 are both within a range of 5 mm to 7 mm. The corrugated profiles of the lower cover 11 and the upper cover 12 have similar shapes. Preferably, in the embodiment of the present invention, the corrugated profiles of the lower cover 11 and the upper cover 12 have the same shape. Specifically, the crests 111 and troughs 121 included in the corrugated profile of the lower cover 11 are identical to the crests 121 and troughs 122 included in the corrugated profile of the upper cover 12. Correspondingly, the crest flanks 1211 and crest midsections 1212 included in the crests 121 of the upper cover 12 are also identical to the crest flanks 1111 and crest midsections 1112 included in the crests 111 of the lower cover 11.

[0056] The upper cover 12 and the lower cover 11 in the protective sleeve have the same corrugated profile and adopt an inverted "U"-shaped corrugated shape, which is not only convenient for production, but also makes the protective sleeve have a larger elastic space and is less likely to break. In addition, it is easy to clean and avoids dust accumulation.

[0057] Furthermore, the thickness of the trough 122 in the corrugated profile of the upper cover 12 is less than the thickness of the crest 121, and the thickness of the trough 112 in the corrugated profile of the lower cover 11 is less than the thickness of the crest 111. Please refer to Figure 16, which illustrates the crest 111 and trough 112 contained in the corrugated profile of the lower cover 11. The thickness t3 of the trough 112 is less than the thickness t2 of the crest 111. In an optional embodiment, the thickness of the crest is 0.8 to 1.4 mm, and the thickness of the trough is 0.5 to 1.0 mm. Preferably, the thickness t2 of the crest is 1.0 mm, and the thickness t3 of the trough is 0.6 mm. The thickness difference between the trough and the crest in the corrugated profile allows the corrugated hose to expand and compress more flexibly and naturally.

[0058] Furthermore, the wave crest side abdomen 1211 of the wave crest 121 contained in the corrugated profile of the upper cover 12 gradually tilts from one end near the wave crest middle section 1212 toward the central axis of the protective sleeve; the wave crest side abdomen 1111 of the wave crest 111 contained in the corrugated profile of the lower cover 11 gradually tilts from one end near the wave crest middle section 1112 toward the central axis of the protective sleeve; and, with the trend of tilting, the lateral widths of the wave crest side abdomen 1211 of the upper cover 12 and the wave crest side abdomen 1111 of the lower cover 11 gradually become smaller. As the lateral widths of adjacent wave crest side abdomens 1211 of the upper cover 12 and adjacent wave crest side abdomens 1111 of the lower cover 11 gradually become smaller, the spacing between adjacent wave crest side abdomens 1211 of the upper cover 12 and the spacing between adjacent wave crest side abdomens 1111 of the lower cover 11 gradually become larger, but limitedly, the spacing is less than or equal to 7 mm. In an optional embodiment, the value of the spacing is 5 mm. Please refer to Figure 17, which illustrates the crest side 1211 contained in the corrugated profile of the upper cover 12. The crest 121 includes the crest middle section 1212 and the crest side 1211, and the trough 122 includes the trough middle section 1222 and the trough side 1221. In the figure, t4 is the lateral width value of the crest middle section 1212, t6 is the lateral width value of a certain point on the crest side 1211, t5 is the lateral width value of the trough middle section 1222, and t7 is the lateral width value of a certain point on the trough side 1221. The maximum transverse width of the crest side abdomen 1211 of the upper cover 12 is the transverse width value t4 of the middle section 1212 of the crest. As the crest side abdomen 1211 gradually tilts from its top to its bottom, that is, toward the central axis of the protective sleeve, as shown in the figure, the transverse width of the crest side abdomen 1211 changes from t4 to t6, and its transverse width value gradually becomes smaller; and as the transverse width of the crest side abdomen 1211 of the upper cover 12 gradually becomes smaller, the spacing between adjacent crest side abdomens 1211 of the upper cover 12 gradually becomes larger, that is, the relative width of the crest side abdomen 1211 is gradually reduced. The lateral width of the trough 122 between adjacent wave crest side abdomens 1211 gradually increases. As shown in the figure, the lateral width of the trough middle section 1222 is t5, and the maximum value of the lateral width 1222 of the trough side abdomen is the lateral width value t5 of the trough middle section 1222. As the lateral width of the wave crest side abdomen 1211 changes from t4 to t6, the lateral width of the wave crest side abdomen 1221 changes from t5 to t7, and its lateral width value gradually increases, but is limited to the lateral width of the trough side abdomen 1221 being less than or equal to 7 mm. It should be noted that in this embodiment, the lateral width values ​​of each point of the wave crest middle section 1212 of the upper cover 12 are the same, and the lateral width values ​​of each point of the wave crest middle section 1112 of the lower cover 11 are the same. In an optional embodiment, the lateral width values ​​of each point of the wave crest middle section 1212 and the lateral width values ​​of each point of the wave crest middle section 1112 of the lower cover 11 can also be set to be different.

[0059] Please continue to refer to Figures 4, 5, 6, 7, 12 and 18. In the embodiment of the present invention, the upper cover 12 and the lower cover 11 have the same corrugated profile. After the two are snap-fitted together, the snap-fitting connection is the central axis 130 of the protective sleeve. Furthermore, the crest side abdomen 1211 on both sides of the upper cover 12 extends vertically outwards away from one end of the crest middle section 1212 to form an upper cover side wing 123, and the crest side abdomen 1111 on both sides of the lower cover 11 extends vertically outwards away from one end of the crest middle section 1112 to form a lower cover side wing 113; the upper cover side wing 123 and the lower cover side wing 113 are meshed with each other, wherein the surface of the upper cover side wing 123 is respectively along its longitudinal direction. The upper cover wing has engaging holes 1231 and engaging teeth 1232. The lower cover wing 113 also has engaging holes 1131 and engaging teeth 1132 along its longitudinal direction. The upper cover wing engaging holes 1231 and the lower cover wing engaging teeth 1132 are aligned, respectively, with the upper cover wing engaging holes 1231 and the lower cover wing engaging teeth 1132, and the upper cover wing engaging teeth 1232 and the lower cover wing engaging holes 1131, respectively, to secure the upper cover 12 and the lower cover 11. When the upper cover wing 123 of the upper cover 12 is connected to the lower cover wing 113 of the lower cover 11, it forms a support for the protective sleeve wing, which is used to support and balance the movement of the protective sleeve and prevent it from tilting and swinging during movement.

[0060] Continuing with Figure 15 , the meshing upper and lower cover wings 123, 113 form the central axis of the protective sleeve. The thickness t1 of this central axis does not exceed 4 mm, preventing the smooth bending of the protective sleeve from being hindered. In an alternative embodiment, the thickness of each of the upper and lower cover wings 123, 113 can be limited to no more than 2 mm during production.

[0061] In the protective sleeve provided in this embodiment, the peaks 111 and 121 of the corrugated profile of the lower cover 11 and the upper cover 12 are in an inverted "U" shape, narrowing from the top to the sides. The flanks 1211 of the peaks 121 of the upper cover 12 and the flanks 1111 of the peaks 111 of the lower cover 11 gradually incline from their top toward the central axis 130 of the protective sleeve, and their lateral widths gradually decrease as they incline. The corrugated profiles of the lower cover 11 and the upper cover 12 are distributed radially, perpendicular to the longitudinal length of the protective sleeve. When the protective sleeve bends, the corrugated profiles compensate for the length expansion and contraction of the lower cover 11 and the upper cover 12 at different bending radii. The upper cover 12 is located on the inner side of the protective sleeve during bending. Its radially distributed wave crests 121 and wave troughs 122 are compressed to prevent the bending radius from being less than the specified value. The lower cover 11 is located on the outer side of the protective sleeve during bending. Compared to the upper cover 12, it has added "T"-shaped stops 114 on the flanks 1111 of the wave crests on both sides, forming two lateral wings of the protective sleeve. The stops 114 are inclined at a certain angle to the cross-section of the protective sleeve along its longitudinal direction. This not only enhances the flank support force of the protective sleeve, but also maximizes the use of the internal space of the protective sleeve. The length of the "T"-shaped upper end of the stop 114 is greater than or equal to the distance between adjacent wave crests 111. This allows the protective sleeve to maintain left-right balance during movement, reduces wear on the corrugations, and reduces noise. The radially distributed wave crests 111 and wave troughs 112 on the lower cover 11 are stretched to prevent the lower cover 11 from stretching; when the protective sleeve is horizontally suspended, adjacent stoppers 114 on the lower cover 11 conflict with each other, limiting the protective sleeve from sagging downward, thereby keeping the protective sleeve in a horizontal state.

[0062] The present invention further provides a pipeline protection device. As shown in Figures 19 and 20, the pipeline protection device provided in this embodiment includes the above-mentioned protection sleeve 1 and fixed joint 2.

[0063] Fixed joints 2 are provided at both ends of the protective sleeve 1. The pipeline aa, encased in the protective sleeve 1, passes through the interior of the fixed joints 2. The fixed joints 2 include a lower sub-joint 21, located below during installation, and an upper sub-joint 22, located above and opposite each other. The lower sub-joint 21 and the upper sub-joint 22 interlock to form a slot for placing the protective sleeve 1. The lower sub-joint 21 has a lower clip 211 at its end, and the upper sub-joint 22 has an upper clip 221 at its end. The lower clips 211 and the upper clips 221 respectively engage the troughs of the corrugated profile of the protective sleeve 1 and, relying on the protrusions of the crests, secure the protective sleeve 1. Simultaneously, the lower clips 211 and the upper clips 221 clamp the central axis of the protective sleeve 1, restricting axial displacement of the protective sleeve 1.

[0064] Furthermore, the fixed joint 2 is provided with a locking piece. In this embodiment, the lower end of the sub-joint 21, away from the protective sleeve 1, is provided with a lower locking piece 212, and the upper end of the sub-joint 22, away from the protective sleeve 1, is provided with an upper locking piece 222. The pipeline aa through the fixed joint 2 is fixed and locked with the locking piece, preventing the pipeline aa from slipping inside the protective sleeve 1.

[0065] Furthermore, at least one locking buckle 213 is provided on the lower sub-joint 21, and a corresponding locking hole 223 is provided on the upper sub-joint 22. The locking buckle 213 cooperates with the locking hole 223 to secure the fixed joint 2. In an optional embodiment, the fixed joint 2 may also be provided with screw holes to further enhance the securing effect.

[0066] Referring to Figure 21 , the pipeline protection device also includes a cable divider 3. The cable divider 3 includes a first end 311 that engages with the inner wall of the protective sleeve 1 and a second end 312 that engages with the inner wall of the fixed joint 2. A cable compartment 313 is provided between the first end 311 and the second end 312, which is used to separate and organize the pipelines aa passing through the protective sleeve in the longitudinal direction. Multiple cable compartments 313 can be provided as needed. In this embodiment, four cable compartments 313 are provided, divided into two layers, with two cable compartments on each layer.

[0067] The pipeline protection device provided by the present invention positions the stopper on the protective sleeve at the flank of the wave crests contained in the corrugated profile of the lower cover. This not only enhances the support and strength of the outer side of the corrugated hose-type protective sleeve, but also allows the sleeve to be made narrower, resulting in a smaller width and a smaller bending radius, making it more suitable for pipeline protection applications in confined spaces. Furthermore, the flexible fixed joint secures the end of the protective sleeve, facilitating the securing and arrangement of the pipeline end and preventing the sleeve from loosening.

[0068] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A protective sleeve for protecting a pipeline, the protective sleeve comprising an upper cover and a lower cover for wrapping the pipeline, the upper cover and the lower cover are both an integrated corrugated hose with a corrugated profile formed by alternating crests and troughs, the corrugated profile is flexible, and the protective sleeve is provided with a curvature not less than a specified curvature facing the upper cover side, characterized in that: The upper cover and the lower cover have corrugated profiles of similar shapes, and the crests contained in the corrugated profiles of the upper cover and the lower cover include left and right symmetrical crest side abdomens, and a crest middle section located between the crest side abdomens; the outer surface of the crest side abdomen of the lower cover is provided with a stopper, and adjacent stoppers are in conflict with each other, thereby limiting the sagging of the protective sleeve in an unbent state.

2. The protective sleeve according to claim 1, characterized in that: The stopper is arranged along one end of the side abdomen of the crest close to the middle section of the crest toward the other end opposite thereto, and the cross section of the stopper and the protective sleeve along its longitudinal direction forms an inclination angle, and the inclination angle is not less than 1°.

3. The protective sleeve according to claim 1, characterized in that: The ratio of the width to the height of the cross section of the protective sleeve is greater than or equal to 1.

2.

4. The protective sleeve according to claim 1 or 2, characterized in that: The stopper is "T" shaped; the "T" shaped upper end of the stopper is arranged at one end of the side abdomen of the crest near the middle section of the crest, and the length of the "T" shaped upper end is greater than or equal to the spacing between adjacent crests.

5. The protective sleeve according to claim 1, characterized in that: The wave crests contained in the corrugated profiles of the upper cover and the lower cover are in an inverted "U" shape; the inverted "U"-shaped wave crests of the upper cover and the lower cover narrow from the top to both sides; the spacing between adjacent inverted "U"-shaped wave crests of the upper cover and the lower cover is 4mm to 8mm.

6. The protective sleeve according to claim 1 or 5, characterized in that: The crest side abdomen of the crest of the upper cover is the same as the crest side abdomen of the crest of the lower cover, and the crest middle section of the crest of the upper cover is the same as the crest middle section of the crest of the lower cover; The crest side abdomens contained in the corrugated profiles of the upper cover and the lower cover are formed from their respective near-crest middle sections. One end of the protective sleeve gradually inclines toward the central axis direction of the protective sleeve; and, along with the inclination, the transverse width of the side abdomen of the wave crest gradually decreases.

7. The protective sleeve according to claim 6, characterized in that: As the lateral width of the corrugated crest flanks gradually decreases, the spacing between adjacent corrugated crest flanks gradually increases, but limitedly, the spacing between adjacent corrugated crest flanks is less than or equal to 7 mm.

8. The protective sleeve according to claim 1 or 6, characterized in that: The upper cover and the lower cover are buckled and connected up and down, and the connection point is the central axis of the protective sleeve.

9. The protective sleeve according to claim 6, characterized in that: The thickness of the troughs in the corrugated profile is smaller than the thickness of the peaks.

10. The protective sleeve according to claim 9, characterized in that: The thickness of the wave crest is 0.8-1.4 mm.

11. The protective sleeve according to claim 9, characterized in that: The thickness of the trough is 0.5-1.0 mm.

12. The protective sleeve according to claim 8, characterized in that: The crest side abdomen on both sides of the upper cover extends vertically outward from one end of the crest middle section to form an upper cover side wing, and the crest side abdomen on both sides of the lower cover extends vertically outward from one end of the crest middle section to form a lower cover side wing; the upper cover side wings and the lower cover side wings are meshed with each other.

13. The protective sleeve according to claim 12, characterized in that: The upper cover side wings and the lower cover side wings that are meshed with each other form a central axis surface of the protective sleeve; the thickness of the central axis surface does not exceed 4mm.

14. A pipeline protection device, comprising the protection sleeve according to any one of claims 1 to 13, characterized in that: A movably mounted fixed joint is provided at both ends of the protective sleeve; the pipeline wrapped in the protective sleeve passes through the interior of the fixed joint.

15. The pipeline protection device according to claim 14, characterized in that: The fixed joint includes two opposing sub-joints, which are buckled together to form a groove in which the protective sleeve can be placed; a buckle is provided at the end of the sub-joint, which cooperates with the trough in the corrugated profile of the protective sleeve and clamps the protective sleeve by relying on the protrusion of the crest.

16. The pipeline protection device according to claim 15, characterized in that: A wire locking piece is provided on one end of the fixed joint away from the protective sleeve; the pipeline passing through the fixed joint is fixedly locked with the wire locking piece.

17. The pipeline protection device according to claim 14, characterized in that: It also includes a wire splitter; the wire splitter includes a first end engaged with the inner wall of the protective sleeve, and a second end engaged with the inner wall of the fixed joint; a cable compartment is provided through the first end and the second end for separating and organizing the pipelines passing through the protective sleeve in the longitudinal direction.

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