Cable protection sleeve

Abstract

The utility model discloses a cable protection sleeve, and relates to the technical field of cable protection sleeves. The steel pipe comprises a steel pipe and a protective layer, annular grooves are formed in the outer walls of the two ends of the steel pipe, the steel pipe is detachably sleeved with the protective layer, locking assemblies corresponding to the annular grooves are arranged on the inner wall of the protective layer, each locking assembly comprises a plurality of locking parts which are circumferentially arranged around the center axis of the protective layer at intervals, and the locking parts can stretch into or retreat from the annular grooves. The steel pipe is sleeved with the protection layer in the axial direction, when the locking assemblies on the inner wall of the protection layer correspond to the annular grooves in the outer walls of the two ends of the steel pipe in position, the locking assemblies on the protection layer are driven, so that the multiple circumferentially-distributed locking components synchronously stretch into the annular grooves of the steel pipe to form mechanical engagement, and therefore the protection layer cannot move in the axial direction of the steel pipe; fixing of the protection layer and the steel pipe is completed; installation and disassembly can be rapidly completed without extra tools, the maintenance efficiency is improved, and the cable protection sleeve can continuously protect the cable.

Description

TECHNICAL FIELD

[0001] The utility model relates to cable protection sleeve technical field, especially in cable protection sleeve. BACKGROUND

[0002] At present, the use of cable is more and more, and the application field is more and more extensive, and the requirement of cable type and performance is higher and higher, and in many environments, the cable needs to be protected, and generally, the steel pipe is set on the cable to protect the cable.

[0003] In order to prolong the service life of the steel pipe, a protective layer is usually wrapped on the surface of the steel pipe to protect the steel pipe, however, in the prior art, the installation of the protective layer is directly adhered to the surface of the steel pipe, and when the protective layer is damaged after long-term use, it is difficult to replace the protective layer.

[0004] Therefore, the utility model provides a cable protection sleeve to solve or at least alleviate the above problems. UTILITY MODEL CONTENTS

[0005] The utility model discloses a cable protection sleeve, which aims to solve the technical problem of difficult replacement of the protective layer of the cable protection sleeve.

[0006] To achieve the above object, the utility model provides a cable protection sleeve, which comprises:

[0007] A steel pipe, the outer wall of both ends of the steel pipe is formed with an annular groove;

[0008] A protective layer, the protective layer is detachably sleeved on the steel pipe, the inner wall of the protective layer is provided with a locking assembly corresponding to the annular groove, the locking assembly comprises a plurality of locking components which are circumferentially and intervally arranged around the central axis of the protective layer, and the locking components can extend into or exit from the annular groove.

[0009] In an embodiment, the locking component comprises an elastic member, the inner wall of the protective layer is provided with a plurality of first grooves, the protective layer is formed with a through hole which is in communication with the first grooves, the cable protection sleeve comprises a plurality of T-shaped members, the T-shaped member comprises a horizontal plate and a vertical rod which are connected with each other, the elastic member is sleeved on the vertical rod, the vertical rod is telescopically installed in the through hole, one end of the elastic member is arranged on the groove bottom of the first groove, the other end of the elastic member is connected with the horizontal plate, a clamping block is arranged on the side of the horizontal plate away from the elastic member, and the clamping block can extend into or exit from the annular groove.

[0010] In an embodiment, the elastic member is a disc spring or a wave spring, the top end of the clamping block protrudes from the first groove in a natural state, and a hemispherical guide surface is formed on the end of the clamping block away from the elastic member.

[0011] In one embodiment, a hard gasket is attached to the bottom of each first groove, and the elastic member is connected to the hard gasket.

[0012] In one embodiment, the locking component includes an electric lock tongue, the electric lock tongue is connected to an external controller signal, the inner wall of the protective layer is provided with a plurality of second grooves, the electric lock tongue is arranged in the second groove, and the second grooves and the electric lock tongues are arranged one by one.

[0013] In one embodiment, the top end of the annular groove is formed with a chamfer.

[0014] In one embodiment, a guide block is arranged outside the steel pipe, the inner wall of the protective layer is provided with a guide groove, and the guide block is slidingly installed in the guide groove.

[0015] In one embodiment, the outer wall of the protective layer is provided with an elastic buffer layer, and the outer surface is pressed with a rhombic anti-skid pattern.

[0016] In one embodiment, the cable protection sleeve further includes an insulating layer, and the insulating layer is attached to the inner wall of the steel pipe.

[0017] In one embodiment, the inner wall of the steel pipe is provided with a plurality of semicircular lubricating ribs arranged circumferentially along the central axis of the steel pipe, the lubricating ribs are polytetrafluoroethylene lubricating ribs, and the height of the lubricating ribs is less than or equal to 0.5mm.

[0018] In the above scheme, the cable protection sleeve includes a steel pipe and a protective layer, the outer wall of both ends of the steel pipe is formed with an annular groove, the protective layer is detachably sleeved on the steel pipe, the inner wall of the protective layer is provided with a locking assembly corresponding to the annular groove, the locking assembly includes a plurality of locking components arranged circumferentially and spaced apart around the central axis of the protective layer, and the locking components can extend into or exit the annular groove. Specifically, the inner wall of the protective layer is aligned with the end of the steel pipe, and then the protective layer is sleeved into the steel pipe in the axial direction. When the locking assembly on the inner wall of the protective layer corresponds to the position of the annular groove on the outer wall of both ends of the steel pipe, the locking assembly on the protective layer is driven, so that the plurality of circumferentially distributed locking components are synchronously extended into the annular groove of the steel pipe to form a mechanical engagement. In this way, the protective layer cannot move along the axial direction of the steel pipe, and the fixing of the protective layer and the steel pipe is completed. When the protective layer needs to be replaced, the locking assembly is driven to make the locking components exit the annular groove, so that the protective layer is not locked with the steel pipe, and the protective layer can move along the axial direction of the steel pipe to remove the protective layer. The utility model adopts a detachable design, and the mechanical cooperation between the locking components and the annular groove can quickly complete the installation and disassembly without additional tools. The protective layer is simple to install and disassemble, which improves the maintenance efficiency, so that the cable protection sleeve can continuously protect the cable. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to the structures shown in these drawings without creative labor.

[0020] Figure 1 The cross-sectional view of the cable protection sleeve provided by the present application at the connection between the steel pipe and the protection layer in one embodiment is shown in the figure.

[0021] Figure 2 The cross-sectional view of the cable protection sleeve provided by the present application at the connection between the steel pipe and the protection layer in another embodiment is shown in the figure. Figure 1 The enlarged view at A is shown in the figure.

[0022] Figure 3 The cross-sectional view of the cable protection sleeve provided by the present application at the connection between the steel pipe and the protection layer in another embodiment is shown in the figure.

[0023] Figure 4 The cross-sectional view of the cable protection sleeve provided by the present application in one embodiment is shown in the figure.

[0024] Figure 5 The overall structure schematic diagram of the steel pipe provided by the present application in one embodiment is shown in the figure.

[0025] Figure 6 The cross-sectional view of the cable protection sleeve provided by the present application at the connection between the steel pipe and the protection layer in another embodiment is shown in the figure. Figure 5 The enlarged view at B is shown in the figure.

[0026] Explanation of the reference numerals:

[0027] 100, cable protection sleeve; 1, steel pipe; 11, annular groove; 111, chamfer; 12, guide block; 2, protection layer; 21, first recess; 211, hard gasket; 22, through hole; 23, clamping block; 231, semispherical guide surface; 24, second recess; 25, guide groove; 3, locking assembly; 31, locking component; 311, elastic member; 312, electric lock tongue; 4, T-shaped piece; 41, horizontal plate; 42, vertical rod; 5, insulation layer; 6, lubricating convex strip.

[0028] The purposes, functional features and advantages of the present application will be further described with reference to the embodiments and the drawings. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0030] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), such directional indications are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0031] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0032] At present, the use of cables is increasing, and the application fields are becoming more and more extensive. The requirements for cable types and performance are also becoming higher and higher. In many environments, cables need to be protected. Generally, steel pipes are installed on the cables to protect them.

[0033] In order to extend the service life of steel pipes, a protective layer is usually wrapped around the surface of the steel pipe to protect the steel pipe. However, in the existing technology, the protective layer is generally directly adhered to the surface of the steel pipe. After long-term use, when the protective layer is damaged, it is difficult to replace the protective layer.

[0034] To achieve this, please refer to Figures 1 to 6The utility model provides a kind of cable protection sleeve 100, including steel pipe 1 and protective layer 2, the outer wall of both ends of steel pipe 1 is formed with annular groove 11, protective layer 2 is detachably sleeved in steel pipe 1, the inner wall of protective layer 2 is provided with the locking assembly 3 corresponding with annular groove 11, locking assembly 3 includes multiple locking components 31 around the center axis of protective layer 2 and is arranged in circle interval, locking component 31 can be extended into or exit annular groove 11.It is specifically, the inner wall of protective layer 2 is aligned with the end of steel pipe 1, then protective layer 2 is axially sleeved into steel pipe 1, when the locking assembly 3 of protective layer 2 inner wall and the annular groove 11 position of both ends of steel pipe 1 outer wall correspond, drive locking assembly 3 on protective layer 2, so that multiple circumferential distribution locking components 31 are synchronously extended into the annular groove 11 of steel pipe 1, form mechanical engagement, so protective layer 2 cannot move along the axial direction of steel pipe 1, complete the fixation of protective layer 2 and steel pipe 1, when needing to change protective layer 2, drive locking assembly 3, so that locking component 31 exits annular groove 11, so protective layer 2 is not locked with steel pipe 1, and protective layer 2 can be axially moved along steel pipe 1 and take down protective layer 2.The embodiment of the application adopts detachable design, by the mechanical cooperation of locking component 31 and annular groove 11, installation and disassembly can be quickly completed without additional tool, protective layer 2 is installed and disassembled simply, and maintenance efficiency is improved, so that cable protection sleeve 100 can continuously protect cable.

[0035] Please refer to Figure 1 and Figure 2In an embodiment, the locking component 31 comprises an elastic member 311, the inner wall of the protective layer 2 is provided with a plurality of first grooves 21, the protective layer 2 is formed with through holes 22 in communication with the first grooves 21, the cable protection sleeve 100 comprises a plurality of T-shaped members, each T-shaped member comprises a horizontal plate 41 and a vertical rod 42 connected with each other, the elastic member 311 is sleeved on the vertical rod 42, the vertical rod 42 is installed in the through hole 22 in an extendable manner, one end of the elastic member 311 is arranged at the groove bottom of the first groove 21, the other end of the elastic member 311 is connected with the horizontal plate 41, the side of the horizontal plate 41 away from the elastic member 311 is provided with a clamping block 23, the clamping block 23 can extend into or exit the annular groove 11. The inner wall of the protective layer 2 is aligned with the end of the steel pipe 1, then the T-shaped member is pulled to compress the elastic member 311, the clamping block 23 extends into the first groove 21, then the protective layer 2 is sleeved on the steel pipe 1 in the axial direction, the T-shaped member is loosened, when the clamping block 23 moves to a position corresponding to the annular groove 11 of the outer wall of the steel pipe 1, the elastic member 311 is no longer stressed, the elastic member 311 restores the deformation to generate an elastic force, which pushes the clamping block 23 to extend out of the first groove 21 and move towards the annular groove 11, the clamping block 23 extends into the annular groove 11 to form a mechanical engagement, so that the protective layer 2 cannot move in the axial direction of the steel pipe 1, and the fixing of the protective layer 2 and the steel pipe 1 is completed; when it is necessary to replace the protective layer 2, the T-shaped member is pulled to compress the elastic member 311, the clamping block 23 extends into the first groove 21, and the clamping block 23 exits the annular groove 11, so that the protective layer 2 is not locked with the steel pipe 1, and the protective layer 2 can move in the axial direction of the steel pipe 1 to be removed; the clamping block 23 is automatically reset through elastic deformation, when the protective layer 2 is sleeved on the steel pipe 1, the elastic member 311 pushes the horizontal plate 41 to automatically extend the clamping block 23 into the annular groove 11, which further reduces the operation steps of the operator, reduces the operation difficulty, and improves the replacement efficiency.

[0036] Please refer to Figure 1 and Figure 2 In an embodiment, the elastic member 311 is a disc spring or a wave spring, the top end of the clamping block 23 protrudes out of the first groove 21 in a natural state, and the end of the clamping block 23 away from the elastic member 311 is formed with a hemispherical guide surface 231. The disc spring has the characteristics of high rigidity and small deformation, and can generate a large elastic force, can provide a strong locking force in a limited space, and has excellent fatigue resistance; the wave spring adopts a wave-shaped structure, can realize elastic extension and contraction in a very small axial space, and has uniform elastic force distribution and stable clamping. The hemispherical guide surface 231 at the top end of the clamping block 23 can automatically guide the clamping block 23 to slide into the annular groove 11 through the arc-shaped surface, and the clamping block 23 and the annular groove 11 have a slight alignment deviation, and the guide surface can also correct the position through contact and extrusion, so as to avoid damage to the components caused by clamping stagnation or forced installation.

[0037] Please refer to Figure 1 and Figure 2In an embodiment, the bottom of each first groove 21 is attached with a hard gasket 211, and the elastic member 311 is connected with the hard gasket 211. The hard gasket 211 can isolate the elastic member 311 from directly contacting the groove bottom of the protective layer 2, so as to avoid the elastic member 311 from causing indentation, wear or plastic deformation to the groove bottom material when repeatedly compressed for a long time, effectively protect the structural integrity of the protective layer 2, and prolong the service life.

[0038] Please refer to Figure 3 In an embodiment, the locking component 31 includes an electric lock tongue 312, the electric lock tongue 312 is used for signal connection with an external controller, the inner wall of the protective layer 2 is provided with a plurality of second grooves 24, the electric lock tongue 312 is arranged in the second groove 24, the plurality of second grooves 24 and the plurality of electric lock tongues 312 are arranged one by one, and the lock tongue of the electric lock tongue 312 can extend into or exit the annular groove 11. The inner wall of the protective layer 2 is aligned with the end of the steel pipe 1, and then the protective layer 2 is sleeved into the steel pipe 1 along the axial direction. When the clamping block 23 moves to a position corresponding to the annular groove 11 of the outer wall of the two ends of the steel pipe 1, the electric lock tongue 312 is started, the lock tongue is extended, the clamping block 23 is driven to extend into the annular groove 11, and mechanical engagement is formed. In this way, the protective layer 2 cannot move along the axial direction of the steel pipe 1, and the fixing of the protective layer 2 and the steel pipe 1 is completed. When it is necessary to replace the protective layer 2, the electric lock tongue 312 is closed, the lock tongue is retracted, and the clamping block 23 is driven to exit the annular groove 11. In this way, the protective layer 2 is not locked with the steel pipe 1, and the protective layer 2 can move along the axial direction of the steel pipe 1 to remove the protective layer 2. The electric lock tongue 312 is connected with the external controller signal, and the automatic operation of locking / unlocking can be realized through remote instructions without manual intervention. The electric driving mode can accurately adjust the extension / retraction stroke and force of the lock tongue.

[0039] Please refer to Figure 5 and Figure 6 In an embodiment, the top end of the annular groove 11 is formed with a chamfer 111. The chamfer 111 at the top end of the annular groove 11, that is, the inclined transition surface, automatically corrects the radial deviation through the chamfer 111 inclined surface when the protective layer 2 is sleeved into the steel pipe 1, guides the clamping block 23 to smoothly slide into the annular groove 11, reduces the alignment difficulty, and reduces the clamping or component damage caused by hard collision.

[0040] Please refer to Figure 4 and Figure 5 In an embodiment, the outer side of the steel pipe 1 is provided with a guide block 12, the inner wall of the protective layer 2 is provided with a guide groove 25, and the guide block 12 is slidingly installed in the guide groove 25. The sliding cooperation of the guide block 12 and the guide groove 25 can forcibly constrain the relative movement track of the protective layer 2 and the steel pipe 1, and ensure that the two do not rotate circumferentially or deviate radially during the axial sleeving process.

[0041] In an embodiment, the outer wall of the protective layer 2 is provided with an elastic buffer layer, and the outer surface is pressed with diamond-shaped anti-skid lines. The elastic buffer layer can absorb the impact force generated by external collision, extrusion or falling, so as to avoid deformation or damage of the protective layer 2 and the internal components due to hard impact. The diamond-shaped anti-skid lines can effectively prevent slipping during installation and disassembly by increasing the friction between the hands and the outer wall of the protective layer 2.

[0042] Referring to Figure 5 and Figure 6 In an embodiment, the cable protection sleeve 100 further comprises an insulation layer 5 attached to the inner wall of the steel pipe 1. The inner wall of the steel pipe 1 is attached with the insulation layer 5, so that the use of the cable protection sleeve 100 can be prevented from affecting the use of the cable, and the use of the electric lock tongue 312 can be prevented from being interfered by the cable protection sleeve 100.

[0043] Referring to Figures 1 to 4 In an embodiment, the inner wall of the steel pipe 1 is provided with a plurality of semicircular lubricating ribs 6 arranged along the central axis of the steel pipe 1. The lubricating ribs 6 are polytetrafluoroethylene lubricating ribs, and the height of the lubricating ribs 6 is less than or equal to 0.5 mm. The lubricating ribs 6 with low friction coefficient are added to the inner wall of the steel pipe 1 to reduce the friction damage when the cable is inserted, and to improve the installation convenience. The height of the lubricating ribs 6 is less than or equal to 0.5 mm, so that the occupied height of the lubricating ribs 6 can be reduced as much as possible, and the cable diameter covered by the steel pipe 1 can be made as much as possible to be the same as the inner diameter of the steel pipe 1.

[0044] The above description is only an exemplary embodiment of the present application, and does not limit the protection scope of the present application. Any equivalent structural transformation or direct / indirect application in other related technical fields within the technical concept of the present application and the contents of the present application are included in the protection scope of the present application.

Claims

1. A cable protective cover, characterized in that: include: A steel pipe, wherein outer walls of both ends of the steel pipe are formed with annular grooves; A protective layer is detachably mounted on the steel pipe, and a locking assembly corresponding to the annular groove is provided on the inner wall of the protective layer. The locking assembly includes a plurality of locking parts circumferentially spaced around the central axis of the protective layer, and the locking parts can extend into or out of the annular groove.

2. The cable protective cover according to claim 1, wherein: The locking component includes an elastic member, a plurality of first grooves are formed on the inner wall of the protective layer, and a through hole is formed on the protective layer that is interconnected with the first grooves. The cable protective cover includes a plurality of T-shaped members, and the T-shaped members include a horizontal plate and a vertical rod that are connected to each other. The vertical rod is telescopically installed in the through hole, and the elastic member is sleeved on the vertical rod. One end of the elastic member is arranged at the bottom of the first groove, and the other end of the elastic member is connected to the horizontal plate. A clamping block is provided on the side of the horizontal plate facing away from the elastic member, and the clamping block can extend into or out of the annular groove.

3. The cable protective cover according to claim 2, wherein: The elastic member is a disc spring or a wave spring. In a natural state, the top end of the clamping block protrudes from the first groove, and a hemispherical guide surface is formed on one end of the clamping block away from the elastic member.

4. The cable protective cover according to claim 2, wherein: A hard gasket is attached to the bottom of each first groove, and the elastic member is connected to the hard gasket.

5. The cable protective cover according to claim 1, wherein: The locking component includes an electric lock tongue, which is used to connect to an external controller signal. The inner wall of the protective layer is provided with a plurality of second grooves, and the electric lock tongue is arranged in the second grooves. The plurality of second grooves are arranged in a one-to-one correspondence with the plurality of electric lock tongues, and the lock tongue of the electric lock tongue can extend into or out of the annular groove.

6. The cable protective cover according to claim 5, wherein: The top of the annular groove is formed with a chamfer.

7. The cable protective cover according to claim 1, wherein: A guide block is provided on the outside of the steel pipe, a guide groove is provided on the inner wall of the protective layer, and the guide block is slidably installed in the guide groove.

8. The cable protective cover according to any one of claims 1 to 7, characterized in that: The outer wall of the protective layer is provided with an elastic buffer layer, and the outer surface is pressed with diamond-shaped anti-slip lines.

9. The cable protective cover according to any one of claims 1 to 7, characterized in that: The cable protective cover also includes an insulating layer, and the insulating layer is adhered to and fully covers the inner wall of the steel pipe.

10. The cable protective cover according to any one of claims 1 to 7, characterized in that: The inner wall of the steel pipe is provided with a plurality of semicircular lubricating ridges arranged circumferentially along the central axis of the steel pipe. The lubricating ridges are polytetrafluoroethylene lubricating ridges, and the height of the lubricating ridges is less than or equal to 0.5 mm.

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