Protective sleeve and pipeline protection device

Abstract

The protective sleeve comprises an upper cover and a lower cover wrapping pipelines, and the upper cover and the lower cover are integrated corrugated hoses with corrugated profiles, the corrugated profiles are flexible, and the protective sleeve is provided to bend the upper cover side to not less than a defined curvature; the upper cover and the lower cover have similar corrugated profiles, the corrugated profiles of the upper cover and the lower cover contain wave crests, the wave crests include left and right symmetrical wave crest side abdomen portions, and wave crest middle portions are located between the wave crest side abdomen portions; the outer side surfaces of the wave crest side abdomen portions of the lower cover are provided with stops, and the adjacent stops are in contact with each other to limit the sag of the protective sleeve in the unbent state. The protective sleeve provided by the application has smaller width and smaller bending radius, and is more suitable for pipeline protection application in narrow space.

Description

TECHNICAL FIELD

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

[0002] In modern industrial production, pipeline guiding devices have become an indispensable part of electrical equipment, used to guide and protect the movement of the pipelines of the equipment, ensure movement in the same direction, and prevent the pipelines from winding and wearing each other.

[0003] For moving equipment, power cables, control cables, and fluid pipelines are indispensable components of machines, which provide energy power and signals for equipment operation and control. With the world entering the era of intelligent advanced manufacturing, high-demand cable protection systems have emerged, and more and more precise equipment requires more cable protection and control in smaller spaces.

[0004] The existing pipeline protection system does not have a good solution to the above-mentioned needs. Therefore, how to provide a pipeline protection system with narrower width and smaller bending radius is an urgent problem in the industry. SUMMARY

[0005] The protective sleeve and the pipeline protection device provided by the present application solve the problem that the prior art cannot provide a pipeline protection system with narrower width and smaller bending radius.

[0006] The purpose of the present application can be achieved through the following technical measures:

[0007] The present application provides a protective sleeve for protecting pipelines, the protective sleeve comprising an upper cover and a lower cover wrapping the pipelines, the upper cover and the lower cover are both one-piece corrugated hoses with corrugated profiles formed by alternating peaks and valleys, the corrugated profiles have flexibility, and the protective sleeve is provided to bend upwards on the side of the upper cover with a curvature not less than a defined curvature, the upper cover and the lower cover have similar corrugated profiles, the peaks of the corrugated profiles of the upper cover and the lower cover include left and right symmetrical peak side abdomen portions and peak middle portions between the peak side abdomen portions; the outer side surface of the peak side abdomen portion of the lower cover is provided with a stop, and the adjacent stops abut each other, limiting the sag of the protective sleeve in the unbent state.

[0008] Further, the stop is arranged along the peak side abdomen portion from one end close to the peak middle portion to the other end opposite to it, and the stop and the cross section of the protective sleeve along the longitudinal direction form an inclination angle, and the inclination angle is not less than 1°.

[0009] Further, the ratio of the width to the height of the cross section of the protective sleeve is greater than or equal to 1.2.

[0010] Further, the stopper is "T" shaped; the upper end of the "T" shape of the stopper is arranged at one end of the wave peak side abdomen near the middle section of the wave peak, and the length of the upper end of the "T" shape is greater than or equal to the interval between adjacent wave peaks.

[0011] Further, the wave peaks of the corrugated profiles of the upper cover and the lower cover are inverted "U" shaped; the inverted "U" shaped wave peaks of the upper cover and the lower cover are tapered from the top thereof to both sides; the interval between adjacent wave peaks of the inverted "U" shape of the upper cover and the lower cover is 4mm to 8mm.

[0012] Further, the wave peak side abdomen contained in the wave peak of the upper cover is the same as the wave peak side abdomen contained in the wave peak of the lower cover, and the wave peak middle section contained in the wave peak of the upper cover is the same as the wave peak middle section contained in the wave peak of the lower cover; the wave peak side abdomen contained in the corrugated profiles of the upper cover and the lower cover is gradually inclined from one end of the respective wave peak middle section thereof to the direction of the central axis of the protective sleeve; and, with the inclination, the transverse width of the wave peak side abdomen gradually decreases.

[0013] Further, with the gradual decrease of the transverse width of the wave peak side abdomen, the interval between adjacent wave peak side abdomens gradually increases, but is limited in that the interval between adjacent wave peak side abdomens is less than or equal to 7mm.

[0014] Further, the upper cover and the lower cover are connected in a clamping manner, and the connection is the central axis of the protective sleeve.

[0015] Further, the thickness of the wave valley in the corrugated profile is less than the thickness of the wave peak.

[0016] Further, the thickness of the wave peak is 0.8 to 1.4mm.

[0017] Further, the thickness of the wave valley is 0.5 to 1.0mm.

[0018] Further, the wave peak side abdomen of one side of the upper cover is perpendicularly extended outward from one end of the wave peak middle section thereof to form an upper cover side wing, and the wave peak side abdomen of one side of the lower cover is perpendicularly extended outward from one end of the wave peak middle section thereof to form a lower cover side wing; the upper cover side wing and the lower cover side wing are connected in a toothed manner.

[0019] Further, the upper cover side wing and the lower cover side wing connected in the toothed manner form a central axis surface of the protective sleeve; the thickness of the central axis surface is not more than 4mm.

[0020] The protective sleeve provided by the present application is used for protecting pipelines, and comprises an upper cover and a lower cover wrapping the pipelines. The upper cover and the lower cover are both integrated corrugated hoses with corrugated profiles formed by alternating peaks and valleys, and the corrugated profiles are flexible. The protective sleeve is provided to be curved on the side of the upper cover with a curvature not less than a defined curvature. The upper cover and the lower cover have similar corrugated profiles. The peaks of the corrugated profiles of the upper cover and the lower cover include left and right symmetrical peak side abdomen portions and peak middle portions between the peak side abdomen portions. The outer side surfaces of the peak side abdomen portions of the lower cover are provided with stops, and the adjacent stops abut against each other to limit the sag of the protective sleeve in the non-curved state. By arranging the stops on the peak side abdomen portions of the peaks of the corrugated profiles of the lower cover, the support and strength of the outer side of the corrugated hose type protective sleeve are strengthened, and the protective sleeve can be made narrower, so that the protective sleeve has a smaller width and a smaller bending radius, and is more suitable for pipeline protection applications in narrow spaces.

[0021] The present application also provides a pipeline protection device, which is provided with a movable fixing connector at each end of any of the above-mentioned protective sleeves. The pipelines wrapped in the protective sleeve pass through the inside of the fixing connector.

[0022] Further, the fixing connector comprises two opposite sub-connectors, and the sub-connectors are downwardly buckled to form a slot hole in which the protective sleeve is placed. The end of the sub-connector is provided with a buckle, and the buckle is matched with the valleys in the corrugated profile of the protective sleeve and clamps the protective sleeve by relying on the protrusions of the peaks.

[0023] Further, the fixing connector is provided with a wire locking sheet at the end away from the protective sleeve. The pipelines passing through the fixing connector are fixed and locked with the wire locking sheet.

[0024] Further, the fixing connector is provided with a wire locking sheet at the end away from the protective sleeve. The pipelines passing through the fixing connector are fixed and locked with the wire locking sheet.

[0025] The pipeline protection device provided by the application is provided with a movable fixing joint at each end of any one of the above-mentioned protective sleeve; the pipeline wrapped in the protective sleeve is led out through the inside of the fixing joint. The pipeline protection device provided by the application is provided with a stopper on the wave peak side abdomen of the wave peak contained in the corrugated profile of the lower cover of the protective sleeve, which strengthens the support and strength of the protective sleeve outside the corrugated hose type protective sleeve, makes the protective sleeve narrower, and realizes smaller width and bending radius of the protective sleeve, so that the protective sleeve is more suitable for pipeline protection application in narrow space. The fixing of the end of the protective sleeve by the movable fixing 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 DRAWINGS

[0026] Figure 1 is a typical application principle diagram of the protective sleeve of the application;

[0027] Figure 2 is a structure schematic diagram of the protective sleeve provided by the embodiment of the application in a curved state facing the upper cover;

[0028] Figure 3 is a structure schematic diagram of the protective sleeve provided by the embodiment of the application when the opening of the lower cover is placed downward;

[0029] Figure 4 is a local enlarged structure schematic diagram of the protective sleeve provided by the embodiment of the application when the opening of the lower cover is placed downward;

[0030] Figure 5 is a structure schematic diagram of the protective sleeve provided by the embodiment of the application when the opening of the lower cover is placed upward;

[0031] Figure 6 is a structure schematic diagram of the protective sleeve provided by the embodiment of the application when the opening of the upper cover is placed downward;

[0032] Figure 7 is a structure schematic diagram of the protective sleeve provided by the embodiment of the application when the opening of the upper cover is placed downward in a cross-sectional view;

[0033] Figure 8 is a structure schematic diagram of the protective sleeve provided by the embodiment of the application when the opening of the upper cover is placed upward;

[0034] Figure 9 is a structure schematic diagram of the protective sleeve provided by the embodiment of the application when the opening of the upper cover is placed downward in a side view;

[0035] Figure 10 is a structure schematic diagram of the protective sleeve provided by the embodiment of the application in an extended state and with the lower cover below;

[0036] Figure 11is a cross-sectional view of a protective sleeve according to an embodiment of the present application;

[0037] Figure 12 is a structural view of a protective sleeve according to an embodiment of the present application, with the lower cover opening upwardly placed and cross-sectionally cut;

[0038] Figure 13 is a partial cutaway view of a protective sleeve according to an embodiment of the present application, from a top perspective;

[0039] Figure 14 is a longitudinal cross-sectional view of a protective sleeve according to an embodiment of the present application, in an extended state and parallel to the plane of motion;

[0040] Figure 15 is Figure 14 is a partial enlarged view of I portion taken from the middle;

[0041] Figure 16 is a partial cutaway view of a protective sleeve according to an embodiment of the present application, from a side perspective;

[0042] Figure 17 is a partial cutaway view of a protective sleeve according to an embodiment of the present application, from a top perspective with the upper cover opening downwardly placed;

[0043] Figure 18 is a structural view of a protective sleeve according to an embodiment of the present application, in an extended state and with the lower cover above;

[0044] Figure 19 is a structural view of a pipeline protection device according to an embodiment of the present application;

[0045] Figure 20 is an exploded view of a pipeline protection device according to an embodiment of the present application;

[0046] Figure 21 is an exploded view of a pipeline protection device according to an embodiment of the present application, containing a line splitter. DETAILED DESCRIPTION

[0047] In order to make the objectives, technical solutions and advantages of the present application clearer, further detailed description will be given to the present application in combination with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application.

[0048] To make the description of the present disclosure more detailed and complete, the following describes the embodiments of the present application and specific examples in an illustrative manner; however, this is not the only form of implementation or use of the specific embodiments of the present application. The embodiments include the features of the specific embodiments and the method steps and their order for constructing and operating the specific embodiments. However, other specific embodiments can also be used to achieve the same or equivalent functions and step orders.

[0049] Figure 1 The working principle of the protective sleeve is schematically shown. The protective sleeve sealingly wraps the pipeline, and is fixed on the equipment at one or both ends in the longitudinal direction, and can be stationary at both ends, or stationary at one end and moving at the other end, or moving at both ends. In the moving case, the protective sleeve is deflected in one direction at no less than a defined curvature, and cannot be deflected in the other direction. As shown in the schematic diagram, the protective sleeve 1 is fixed at one end at point A and at the other end at point B. Point A is fixed and stationary, and point B moves with the equipment, and as shown by the dashed line, one end of the protective sleeve 1 at point B is deflected to move to point C within the defined curvature range.

[0050] Referring to Figures 2 to 10 The protective sleeve 1 provided by the embodiments of the present application includes a lower cover 11 and an upper cover 12 that wrap the pipeline. The upper cover 12 and the lower cover 11 are movably connected, and in an alternative embodiment, the upper cover 12 and the lower cover 11 are connected in a snap-fit manner. The lower cover 11 and the upper cover 12 are integrally formed corrugated hoses with corrugated profiles that alternate between peaks and valleys, and the corrugated profiles have a deflection property that provides the protective sleeve with a bending property facing the side of the upper cover 12 at no less than a defined curvature.

[0051] The lower cover 11 and the upper cover 12 have similar corrugated profiles. The peaks 121 contained in the upper cover 12 include left and right symmetrical peak side abdomen portions 1211, and peak middle portions 1212 between the peak side abdomen portions 1211. The peaks 111 contained in the corrugated profile of the lower cover 11 include left and right symmetrical peak side abdomen portions 1111, and peak middle portions 1112 between the peak side abdomen portions 1111. It should be noted that the peak middle portions contained in the peak profile in the present application refer to the portions of the peak that are substantially parallel or completely parallel to the profile of the protective sleeve in the longitudinal direction thereof, and the peak side abdomen portions refer to the portions of the peak that are connected to the peak middle portions and start to curve to the sides of the peak profile.

[0052] The outer side surface of the wave-peak-side abdomen 1111 of the lower cover 11 is provided with stops 114, and the stops 114 abut against each other between adjacent stops 114 to limit the sag of the protective sleeve in the unbent state. Since the bending curvature of the corrugated profile of the corrugated hose is limited in the radial direction, when the width of the cross section of the corrugated hose is reduced and the corrugated profile is designed to tend to be a right angle, the corrugated hose is prone to internal stress, thereby resulting in insufficient supporting force of the corrugated hose. In the embodiment of the present application, the stops 114 are arranged on the wave-peak-side abdomen 1111 of the lower cover 11, so that the protective sleeve can meet the supporting force requirement in a longer stroke, and the width of the cross section of the protective sleeve can be made smaller, thereby realizing a smaller width-height ratio, and the protective sleeve can be made narrower.

[0053] Please refer to Figures 11-13 , based on the stops 114 arranged on the wave-peak-side abdomen 1111 of the lower cover 11, the cross section of the protective sleeve can realize a smaller width-height ratio, but is limited in that 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 stops 114 are arranged along the wave-peak-side abdomen 1111 of the lower cover 11 from one end close to the wave-peak middle section 1112 to the opposite end, and the stop 114 and the cross section of the protective sleeve in the longitudinal direction form an inclination angle, and the inclination angle is not less than 1°. In an optional embodiment, the inclination angle of the stop 114 and the cross section of the protective sleeve in the longitudinal direction is 5°. Further, please refer to Figure 14 and 15 , the stop 114 is in the shape of “T”, and the upper end of the “T” shape of the stop 114 is arranged at one end of the wave-peak-side abdomen 1111 of the lower cover 11 close to the wave-peak middle section 1112, i.e. the top end of the wave-peak-side abdomen 1111 of the lower cover 11. The length m of the upper end of the “T” shape is greater than or equal to the interval p between adjacent wave peaks 111 of the lower cover 11, so as to help to increase the overhead length of the protective sleeve. It can be understood that the length m of the upper end of the “T” shape cannot be infinite, and the upper limit of the length m is that the upper end of the “T” shape of the adjacent stop 114 can abut against each other, and can limit the sag of the protective sleeve in the unbent state.

[0054] The crest 121 of the upper cover 12 and the crest 111 of the lower cover 11 are in the shape of an inverted "U". The inverted "U" shaped crest 121 of the upper cover 12 and the inverted "U" shaped crest 111 of the lower cover 11 are tapered from the top to both sides; the distance between the adjacent inverted "U" shaped crests 121 of the upper cover 12 and the distance between the adjacent inverted "U" shaped crests 111 of the lower cover 11 are in the range of 4mm to 8mm. In alternative embodiments, the distance between the adjacent inverted "U" shaped crests 121 of the upper cover 12 is in the range of 5mm to 7mm, and the distance between the adjacent inverted "U" shaped crests 111 of the lower cover 11 is in the range of 5mm to 7mm. The corrugated profiles of the lower cover 11 and the upper cover 12 are similar in shape, and preferably, in the embodiments of the present application, the corrugated profiles of the lower cover 11 and the upper cover 12 are identical in shape, specifically, the crest 111 and the trough 121 in the corrugated profile of the lower cover 11 are identical in shape to the crest 121 and the trough 122 in the corrugated profile of the upper cover 12, respectively. Correspondingly, the crest side abdomen 1211 and the crest middle section 1212 of the crest 121 in the upper cover 12 are identical in shape to the crest side abdomen 1111 and the crest middle section 1112 of the crest 111 in the lower cover 11, respectively.

[0055] The corrugated profiles of the upper cover 12 and the lower cover 11 in the protective sleeve are identical and in the shape of inverted "U" corrugation, which not only facilitates production, but also makes the protective sleeve have a larger elastic space and is less likely to be broken, in addition, it is convenient for cleaning and avoids dust accumulation.

[0056] Further, 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 , the trough 112 in the corrugated profile of the lower cover 11 is shown, and the thickness t3 of the trough 112 is less than the thickness t2 of the crest 111. In alternative embodiments, the thickness of the crest is 0.8 to 1.4mm, and the thickness of the trough is 0.5 to 1.0mm. Preferably, the thickness t2 of the crest is 1.0mm, and the thickness t3 of the trough is 0.6mm. The thickness difference between the trough and the crest in the corrugated profile makes the corrugated hose more flexible and natural in stretching and compression.

[0057] Further, the peak-side abdomen 1211 of the peak 121 of the corrugated profile of the upper cover 12 gradually inclines from one end of the peak middle section 1212 thereof toward the central axis of the protective sleeve; the peak-side abdomen 1111 of the peak 111 of the corrugated profile of the lower cover 11 gradually inclines from one end of the peak middle section 1112 thereof toward the central axis of the protective sleeve; and, along the direction of the inclination, the peak-side abdomen 1211 of the upper cover 12 and the peak-side abdomen 1111 of the lower cover 11 gradually decrease in transverse width. As the transverse width of the adjacent peak-side abdomen 1211 of the upper cover 12 and the adjacent peak-side abdomen 1111 of the lower cover 11 gradually decreases, the distance between the adjacent peak-side abdomen 1211 of the upper cover 12 and the distance between the adjacent peak-side abdomen 1111 of the lower cover 11 gradually increases, but limitedly, the distance is less than or equal to 7 mm, and in an alternative embodiment, the distance is 5 mm. Please refer to Figure 17 , the peak-side abdomen 1211 of the corrugated profile of the upper cover 12 is schematically shown, corresponding to the peak 121 including the peak middle section 1212 and the peak-side abdomen 1211, and the valley 122 including the valley middle section 1222 and the valley-side abdomen 1221, in the diagram, t4 is the transverse width value of the peak middle section 1212, t6 is the transverse width value of a certain point on the peak-side abdomen 1211, t5 is the transverse width value of the valley middle section 1222, and t7 is the transverse width value of a certain point on the valley-side abdomen 1221. The maximum transverse width of the peak-side abdomen 1211 of the upper cover 12 is the transverse width value t4 of the peak middle section 1212 thereof, and as the peak-side abdomen 1211 gradually inclines from the top end thereof toward the bottom end thereof, i.e., toward the central axis of the protective sleeve, the transverse width of the peak-side abdomen 1211 gradually decreases from t4 to t6 as shown in the diagram; and as the transverse width of the peak-side abdomen 1211 of the upper cover 12 gradually decreases, the distance between the adjacent peak-side abdomen 1211 of the upper cover 12 gradually increases, i.e., the transverse width of the valley 122 between the adjacent peak-side abdomen 1211 gradually increases, and as shown in the diagram, the transverse width of the valley middle section 1222 is t5, and the maximum transverse width of the valley-side abdomen 1221 is the transverse width value t5 of the valley middle section 1222, and as the transverse width of the peak-side abdomen 1211 changes from t4 to t6, the transverse width of the valley-side abdomen 1221 changes from t5 to t7, and the transverse width value gradually increases, but limitedly, the transverse width of the valley-side abdomen 1221 is less than or equal to 7 mm. It should be noted that the transverse width value of each point of the peak middle section 1212 of the upper cover 12 is the same in this embodiment, and the transverse width value of each point of the peak middle section 1112 of the lower cover 11 is the same. In an alternative embodiment, the transverse width value of each point of the peak middle section 1212 and the transverse width value of each point of the peak middle section 1112 of the lower cover 11 can also be set to be different.

[0058] Please continue to refer toFigure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 12 and Figure 18 In the embodiment of the present application, the upper cover 12 and the lower cover 11 have the same corrugated profile, and the middle axis 130 of the protective sleeve is formed at the joint of the two covers after the joint. Further, the upper cover 12 has upper cover side wings 123 formed by vertically extending outward from the ends of the side abdominal portions 1211 of the corrugated peaks away from the middle portions 1212 of the corrugated peaks, and the lower cover 11 has lower cover side wings 113 formed by vertically extending outward from the ends of the side abdominal portions 1111 of the corrugated peaks away from the middle portions 1112 of the corrugated peaks. The upper cover side wings 123 and the lower cover side wings 113 are connected by interlocking. The upper cover side wings 123 have upper cover side wing engaging holes 1231 and upper cover side wing engaging teeth 1232 formed on the surfaces thereof along the longitudinal direction, and the lower cover side wings 113 have lower cover side wing engaging holes 1131 and lower cover side wing engaging teeth 1132 formed on the surfaces thereof along the longitudinal direction. The upper cover 12 and the lower cover 11 are clamped by the interlocking of the upper cover side wing engaging holes 1231 and the lower cover side wing engaging teeth 1132, and the upper cover side wing engaging teeth 1232 and the lower cover side wing engaging holes 1131. The upper cover side wings 123 of the upper cover 12 and the lower cover side wings 113 of the lower cover 11 form supports for the side wings of the protective sleeve after being connected, and are used to support and balance the movement of the protective sleeve to prevent the protective sleeve from tilting and swinging during movement.

[0059] Please continue to read Figure 15 The upper cover side wings 123 and the lower cover side wings 113 that are connected by interlocking form the middle axis surface of the protective sleeve, and the thickness t1 of the middle axis surface is not more than 4 mm, which prevents the smooth bending of the protective sleeve from being hindered. In alternative embodiments, the thickness of the upper cover side wings 123 and the lower cover side wings 113 can be limited to not more than 2 mm during production.

[0060] The peaks 111 of the corrugated profile of the lower cover 11 and the peaks 121 of the corrugated profile of the upper cover 12 are inverted "U" shapes, which are tapered from the top to both sides, wherein the peak side abdomen 1211 of the peaks 121 of the corrugated profile of the upper cover 12 and the peak side abdomen 1111 of the peaks 111 of the corrugated profile of the lower cover 11 are gradually inclined from the top end to the central axis 130 of the protective sleeve, and as the inclination, the transverse width gradually decreases. The corrugated profile of the lower cover 11 and the upper cover 12 is distributed along the vertical diameter of the longitudinal direction of the protective sleeve, and the corrugated profile plays a length compensation role when the protective sleeve is bent. The upper cover 12 is located on the inside of the bending movement of the protective sleeve, and the radially distributed peaks 121 and valleys 122 are compressed to prevent the bending radius from being less than the limit value; the lower cover 11 is located on the outside of the bending movement of the protective sleeve, and relative to the upper cover 12, it increases the "T" shaped stop 114 at the peak side abdomen 1111 on both sides to form two lateral wings of the protective sleeve. The stop 114 and the cross section of the protective sleeve along the longitudinal direction form a certain inclination angle, which not only can enhance the lateral abdomen support of the protective sleeve, but also can maximize the use of the internal space of the protective sleeve. The length of the upper end of the "T" shape of the stop 114 is greater than or equal to the distance between the adjacent peaks 111, which can keep the balance of the protective sleeve during the movement, reduce the wear of the corrugated profile, and reduce the noise. The radially distributed peaks 111 and valleys 112 of the lower cover 11 are stretched to prevent the lower cover 11 from being stretched; when the protective sleeve is horizontally overhead, the adjacent stops 114 on the lower cover 11 abut against each other to limit the protective sleeve from sagging, thereby keeping the protective sleeve in a horizontal state.

[0061] The present application also provides a pipeline protection device, as shown in Figure 19 and 20 The pipeline protection device provided by the embodiment includes the protective sleeve 1 and the fixed joint 2.

[0062] The fixed joint 2 is arranged at both ends of the protective sleeve 1, and the pipeline aa wrapped in the protective sleeve 1 passes out through the inside of the fixed joint 2. The fixed joint 2 includes the lower sub-joint 21 arranged below and the upper sub-joint 22 arranged above and opposite to each other, and the lower sub-joint 21 and the upper sub-joint 22 are buckled to each other to form a slot hole in which the protective sleeve 1 can be placed. The end of the lower sub-joint 21 is provided with a lower buckle 211, and the end of the upper sub-joint 22 is provided with an upper buckle 221. The lower buckle 211 and the upper buckle 221 are matched with the valleys of the corrugated profile of the protective sleeve 1, and rely on the protrusions of the peaks to clamp the protective sleeve 1. At the same time, the lower buckle 211 and the upper buckle 221 also abut against each other to clamp the central axis of the protective sleeve 1, so as to limit the axial displacement of the protective sleeve 1.

[0063] Further, the fixing joint 2 is provided with a locking piece, in the embodiment, the lower sub-joint 21 is provided with a lower locking piece 212 at the end away from the protective sleeve 1, and the upper sub-joint 22 is provided with an upper locking piece 222 at the end away from the protective sleeve 1. The pipeline aa of the fixing joint 2 is fixed and locked with the locking piece, so as to avoid the pipeline aa from slipping inside the protective sleeve 1.

[0064] Further, the lower sub-joint 21 is provided with at least one locking buckle 213, and the upper sub-joint 22 is provided with a corresponding locking hole 223 at the corresponding position, so as to fasten and fix the fixing joint 2 by the cooperation of the locking buckle 213 and the locking hole 223. In the alternative embodiment, the fixing joint 2 can also be provided with a screw hole for further improving the fastening effect.

[0065] Please refer to Figure 21 The pipeline protection device further comprises a line distributor 3. The line distributor 3 comprises a first end portion 311 clamped with the inner wall of the protective sleeve 1, and a second end portion 312 clamped with the inner wall of the fixing joint 2; the first end portion 311 and the second end portion 312 are provided with cable compartments 313 in penetration, for separating and arranging the pipelines aa passing through the protective sleeve in the longitudinal direction. The cable compartments 313 can be provided with multiple ones according to the requirement, in the embodiment, the cable compartments 313 are provided with four ones, which are arranged in two layers, two in each layer.

[0066] The pipeline protection device provided by the application can make the protective sleeve narrower by arranging the stopper on the wave peak side abdomen of the wave peak of the corrugated profile of the lower cover, so as to strengthen the support and strength of the corrugated hose type protective sleeve outside, and make the protective sleeve have smaller width and smaller bending radius, so that it is more suitable for pipeline protection application in narrow space. The fixing of the end of the protective sleeve by the movable fixing joint not only facilitates the fixing and arrangement of the end of the pipeline, but also prevents the protective sleeve from loosening.

[0067] The above only describes the preferred embodiments of the application and should not be used to limit the application. Any modification, equivalent replacement and improvement within the spirit and principle of the application should be included in the protection scope of the application.

Claims

1. A protective sleeve for protecting a pipeline, said protective sleeve comprising an upper cap and a lower cap which encase the pipeline, said upper cap and lower cap each being an integral bellows hose having a bellows profile with alternating crests and troughs, the bellows profile having a flexibility, said protective sleeve being provided to bend with a curvature facing the upper cap side no less than a defined camber, characterised in that, The upper cover and the lower cover have similar corrugated profiles, the wave crests of the corrugated profiles of the upper cover and the lower cover include left and right symmetrical wave crest side abdomen portions and wave crest middle portions between the wave crest side abdomen portions; the outer side surfaces of the wave crest side abdomen portions of the lower cover are provided with stops, and the stops abut against each other between adjacent stops to limit the sag of the protective sleeve in a non-bent state; the wave crest middle portion refers to a portion in the wave crest which is substantially parallel or completely parallel to the section of the protective sleeve along the longitudinal direction of the protective sleeve, and the wave crest side abdomen portion refers to a portion in the wave crest which is connected to the wave crest middle portion and starts to bend in an arc shape to the two sides of the wave crest profile; the section of the stop is in the shape of "T", the upper end of the "T" is arranged at one end of the wave crest side abdomen portion close to the wave crest middle portion, the lower end of the "T" is arranged at the other end of the wave crest side abdomen portion opposite to the one end, and the stop is inclined to the section of the protective sleeve along the longitudinal direction of the protective sleeve.

2. The protective sleeve of claim 1, wherein, The inclination angle is not less than 1°.

3. The protective sleeve of claim 1, wherein, 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 length of the upper end of the "T" is greater than or equal to the distance between adjacent wave crests.

5. The protective sleeve of claim 1, wherein, The wave crests of the corrugated profiles of the upper cover and the lower cover are in the shape of inverted "U"; the inverted "U" shaped wave crests of the upper cover and the lower cover narrow from the top to the two sides; the distance between adjacent wave crests of the inverted "U" shaped wave crests of the upper cover and the lower cover is 4mm to 8mm.

6. The protective sleeve of claim 1 or 5, wherein, The wave crest side abdomen portions included in the wave crests of the upper cover are the same as the wave crest side abdomen portions included in the wave crests of the lower cover, and the wave crest middle portions included in the wave crests of the upper cover are the same as the wave crest middle portions included in the wave crests of the lower cover. The wave crest side abdomen portions included in the corrugated profiles of the upper cover and the lower cover are gradually inclined to the central axis of the protective sleeve from one end of each wave crest side abdomen portion close to the wave crest middle portion; and with the inclination, the transverse width of the wave crest side abdomen portion gradually decreases.

7. The protective sleeve of claim 6, wherein, With the gradual decrease of the transverse width of the wave crest side abdomen portion, the distance between adjacent wave crest side abdomen portions gradually increases, but is limited to be less than or equal to 7mm.

8. The protective sleeve of claim 1, wherein, The upper cover and the lower cover are connected in a clamping manner, and the connection is the central axis of the protective sleeve.

9. The protective sleeve of claim 6, wherein, The thickness of the wave valleys in the corrugated profile is less than the thickness of the wave crests.

10. The protective sleeve of claim 9, wherein, The thickness of the wave crests is 0.8 to 1.4mm.

11. The protective sleeve of claim 9, wherein, The thickness of the wave valleys is 0.5 to 1.0mm.

12. The protective sleeve of claim 8, wherein, The wave crest side abdomen portions of the two sides of the upper cover are perpendicularly extended outward from one end of the wave crest side abdomen portions away from the wave crest middle portion to form upper cover side wings, and the wave crest side abdomen portions of the two sides of the lower cover are perpendicularly extended outward from one end of the wave crest side abdomen portions away from the wave crest middle portion to form lower cover side wings; the upper cover side wings and the lower cover side wings are connected in a toothed manner.

13. The protective sleeve of claim 12, wherein, The upper cover side wings and the lower cover side wings connected in the toothed manner form a central axial surface of the protective sleeve; the thickness of the central axial surface is not more than 4mm.

14. A pipeline protection apparatus comprising the protective sleeve of any one of claims 1-13, characterized in that, A movable fixing connector is arranged at each end of the protective sleeve; the pipeline wrapped in the protective sleeve is led out through the inside of the fixing connector.

15. The line protector of claim 14, wherein, The fixed joint comprises two opposite sub-joints, which are buckled up and down to form a slot hole in which the protective sleeve can be placed; the end of the sub-joint is provided with a buckle which cooperates with the trough in the wave profile of the protective sleeve and is clamped to the protective sleeve by the convexity of the wave crest.

16. The line protector of claim 15, wherein, The fixed joint is provided with a locking sheet at an end away from the protective sleeve; the pipeline through the fixed joint is fixedly locked with the locking sheet.

17. The line protector of claim 14, wherein, The device further comprises a line distributor; the line distributor comprises a first end portion which is clamped to the inner wall of the protective sleeve and a second end portion which is clamped to the inner wall of the fixed joint; the first end portion and the second end portion are provided with cable compartments in penetration, which are used for separating and arranging the pipelines which pass through the protective sleeve in the longitudinal direction.

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