Cable protection tube with high corrosion resistance

Abstract

The utility model relates to the technical field of cables, in particular to a cable protection tube with high corrosion resistance. According to the technical scheme, the device comprises an outer pipe and an inner pipe, an interlayer cavity is formed in the outer pipe, a spacer bush is fixed to an opening of the interlayer cavity, butt joint blocks are distributed on the outer sides of the two ends of the outer pipe in an annular array mode, the inner pipe is located in the outer pipe, end covers are arranged at the two ends of the outer pipe, and butt joint grooves are formed in the inner sides of the end covers; the two ends of the inner pipe are inserted into the corresponding butt joint grooves respectively, a through groove is formed in the middle of the outer end of the end cover, the through groove is connected into the butt joint grooves, connecting blocks are distributed on the outer side of the end cover in an annular array mode, backing rings are fixed to the two ends of the interior of the spacer bush, and the backing rings are connected to the outer sides of the two ends of the inner pipe in a sleeving mode. The utility model has the advantages of double-layer protection, external moistureproof to ensure the service life, and internal support reinforcement to ensure the support strength.

Description

TECHNICAL FIELD

[0001] The utility model relates to cable technical field, concretely is a kind of cable protection pipe with strong corrosion resistance. BACKGROUND

[0002] Cable protection pipe is mainly installed in the ground section where communication cable and power line cross, to prevent power line from breaking and causing short-circuit accident, causing communication cable and steel wire rope to be electrified, to protect cable, switch, core board, and even the whole machine is not burned, and also plays a certain isolation role on power line magnetic field interference.

[0003] The existing cable protection pipe is used, because cable protection pipe is buried underground for a long time, so that cable protection pipe is corroded by underground moisture, cable protection pipe is easily damaged and deformed, which seriously affects its service life;And the existing cable protection pipe is generally protected by multiple layers by installing inner and outer pipes, but the inner pipe is inconvenient to operate during assembly and connection, and the support is poor, the overall strength of the pipe body is poor, and it is easy to damage and deform. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of cable protection pipe with strong corrosion resistance, with double-layer protection, external moisture-proof to ensure service life and internal support reinforcement to ensure support strength, to solve the problems in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of cable protection pipe with strong corrosion resistance, including outer pipe and inner pipe, the inner part of the outer pipe is provided with interlayer cavity, and the opening of interlayer cavity is fixed with spacer sleeve, the outer side of the both ends of the outer pipe is annularly arrayed with butt joint block, the inner pipe is located in the inner part of the outer pipe, the both ends of the outer pipe are equipped with end cap, and the inner side of end cap is provided with butt joint groove, the both ends of the inner pipe are respectively inserted in corresponding butt joint groove, the outer end of the end cap is provided with through slot, and the through slot is connected in butt joint groove, the outer side of the end cap is annularly arrayed with connecting block.

[0006] When using the cable protection pipe with strong corrosion resistance in the technical scheme, during installation, the inner pipe is placed in the inner part of the spacer sleeve of the outer pipe, a filling space is formed between the inner pipe and the spacer sleeve by grommet, then the inner side of the outer pipe is filled with fluid cement, after the cement solidifies, a support protection layer is formed to fix the position of the inner pipe, during installation, the butt joint groove of the end cap is butt jointed with the outer end of the inner pipe, sealing is realized at the connecting place by sealing ring, then the connecting block of the end cap is corresponded with the butt joint block of the outer side of the outer pipe, corresponding screw holes are connected and fixed by fixed bolt, the connection and fixation of the end cap with the outer pipe and the inner pipe are completed, the inner part of interlayer cavity is filled with lime powder, moisture is absorbed by lime powder to avoid corrosion, the cable is placed in the inner part of the inner pipe after passing through the through slot.

[0007] Preferably, both ends of the spacer are fixed with gaskets, and the gaskets are sleeved on the outer sides of the two ends of the inner tube. The gaskets support and limit the inner tube, so that a sandwich space is reserved between the inner tube and the spacer.

[0008] Preferably, the gasket ring is provided with a circular array of circulation holes, the length of the inner tube is greater than the length of the outer tube, and the filled fluid cement is allowed to circulate between the gasket rings through the circulation holes.

[0009] Preferably, the docking block corresponds to the connecting block, and both the docking block and the connecting block are provided with screw holes, and the two corresponding screw holes are connected by fixing bolts. The screw holes are installed by fixing bolts to connect and fix the docking block and the connecting block.

[0010] Preferably, a sealing ring is provided inside the docking groove, and the sealing ring fits against the connecting end of the inner tube, and the through groove corresponds to the inner tube, thereby improving the sealing performance of the connection between the inner tube and the docking groove.

[0011] Preferably, the interlayer cavity is filled with lime powder, and the space between the outer tube and the inner tube is filled with cement. The lime powder in the interlayer cavity absorbs moisture to prevent corrosion, and the cement forms a support and fixation after solidification to ensure the stability of the device.

[0012] Preferably, the end cap is adapted to the outer tube and the inner tube, and the spacer is adapted to the interlayer cavity and the gasket. The outer tube and the inner tube are connected and assembled by the end cap.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: during installation, the inner tube is placed inside the spacer sleeve on the inner side of the outer tube, and a filling space is formed between the inner tube and the spacer sleeve through the gasket, and then the inner side of the outer tube is filled with fluid cement. When the cement solidifies, a supporting protective layer is formed to fix the position of the inner tube. During installation, the docking groove of the end cover is docked with the outer end of the inner tube, and the connection is sealed by the sealing ring. Then the connecting block of the end cover is matched with the docking block on the outside of the outer tube, and the corresponding screw holes are connected and fixed by fixing bolts to complete the connection and fixation of the end cover to the outer tube and the inner tube. The inside of the interlayer cavity is filled with lime powder, which absorbs moist water vapor to avoid corrosion. The cable is passed through the through groove and placed inside the inner tube. The device has a simple structure and is easy to assemble. Simple external protection is formed by the outer tube and the inner tube, and cement and lime powder are filled in the interlayer between them to form moisture-proof, corrosion-resistant and reinforced support, thereby ensuring its protective performance and support stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the outer tube structure of the utility model;

[0016] Figure 3The utility model discloses outer tube section structure schematic diagram shows,

[0017] Figure 4 The utility model discloses outer tube internal structure schematic diagram shows,

[0018] Figure 5 The utility model discloses end cover structure schematic diagram shows.

[0019] In the drawing: 1, end cover, 2, fixed bolt, 3, through slot, 4, butt joint block, 5, outer tube, 6, inner tube, 7, screw hole, 8, flow hole, 9, grommet, 10, spacer sleeve, 11, interlayer cavity, 12, connecting block, 13, sealing ring, 14, butt joint groove. Specific implementation

[0020] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative work belong to the range of protection of the utility model.

[0021] Embodiment one

[0022] Please refer to Figures 1 to 5 The utility model provides an embodiment: a kind of corrosion resistance strong cable protection pipe, including outer tube 5 and inner tube 6, the inside of the outer tube 5 is set with interlayer cavity 11, and the opening of interlayer cavity 11 is fixed with spacer sleeve 10, the outer side of the both ends of the outer tube 5 is annular array distribution with butt joint block 4, the inner tube 6 is located in the inside of outer tube 5, the both ends of the outer tube 5 are equipped with end cover 1, and the inside of end cover 1 is set with butt joint groove 14.

[0023] Further,

[0024] The inside of the spacer sleeve 10 is fixed with grommet 9 at both ends, and grommet 9 is sleeved on the outer side of the both ends of inner tube 6, by grommet 9 support limiting inner tube 6, make inner tube 6 and spacer sleeve 10 between the interlayer space of reservation.

[0025] Further,

[0026] Annular array is set with flow hole 8 on the grommet 9, the length of the inner tube 6 is greater than the length of outer tube 5, by flow hole 8 makes the fluid cement filled in grommet 9 interflow.

[0027] Further,

[0028] The docking block 4 corresponds to the connecting block 12. Both the docking block 4 and the connecting block 12 are provided with screw holes 7, and the two corresponding screw holes 7 are connected by fixing bolts 2. The screw holes 7 are installed by fixing bolts 2 to connect and fix the docking block 4 and the connecting block 12.

[0029] Example 2

[0030] See also Figures 1 to 5 The utility model provides an embodiment: a cable protection tube with strong corrosion resistance, including an outer tube 5 and an inner tube 6, the two ends of the inner tube 6 are respectively inserted into the corresponding docking grooves 14, a through groove 3 is opened in the middle of the outer end of the end cover 1, and the through groove 3 is connected to the docking groove 14, and a connecting block 12 is distributed in a ring array on the outer side of the end cover 1.

[0031] Further,

[0032] A sealing ring 13 is provided inside the docking groove 14 , and the sealing ring 13 fits the connection end of the inner tube 6 . The through groove 3 corresponds to the inner tube 6 , and the sealing ring 13 improves the sealing performance of the connection between the inner tube 6 and the docking groove 14 .

[0033] Further,

[0034] The interlayer cavity 11 is filled with lime powder, and the space between the outer tube 5 and the inner tube 6 is filled with cement. The lime powder in the interlayer cavity 11 absorbs moisture to prevent corrosion. After the cement solidifies, it forms a support and fixation to ensure the stability of the device.

[0035] Further,

[0036] The end cover 1 is adapted to the outer tube 5 and the inner tube 6 , the spacer 10 is adapted to the interlayer cavity 11 and the gasket 9 , and the connection and assembly of the outer tube 5 and the inner tube 6 are completed through the end cover 1 .

[0037] During operation of the present invention, during installation, the inner tube 6 is placed inside the spacer 10 on the inner side of the outer tube 5, and a filling space is formed between the inner tube 6 and the spacer 10 through the gasket 9, and then the inner side of the outer tube 5 is filled with fluid cement. When the cement solidifies, a supporting protective layer is formed to fix the position of the inner tube 6. During installation, the docking groove 14 of the end cover 1 is docked with the outer end of the inner tube 6, and the connection is sealed by the sealing ring 13. Then, the connecting block 12 of the end cover 1 is matched with the docking block 4 on the outside of the outer tube 5, and the corresponding screw holes 7 are connected and fixed by the fixing bolts 2 to complete the connection and fixation of the end cover 1 to the outer tube 5 and the inner tube 6. The inside of the interlayer cavity 11 is filled with lime powder, which absorbs moist water vapor to avoid corrosion. The cable is passed through the through groove 3 and placed inside the inner tube 6.

[0038] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cable protection tube with strong corrosion resistance, comprising an outer tube (5) and an inner tube (6), characterized in that: The outer tube (5) is provided with an interlayer cavity (11), and a spacer (10) is fixed at the opening of the interlayer cavity (11). The outer sides of both ends of the outer tube (5) are provided with docking blocks (4) in an annular array. The inner tube (6) is located inside the outer tube (5). Both ends of the outer tube (5) are provided with end covers (1), and the inner sides of the end covers (1) are provided with docking grooves (14). The two ends of the inner tube (6) are respectively inserted into the corresponding docking grooves (14). A through groove (3) is provided in the middle of the outer end of the end cover (1), and the through groove (3) is connected to the docking groove (14). The outer sides of the end cover (1) are provided with connecting blocks (12) in an annular array.

2. The corrosion-resistant cable protection tube according to claim 1, characterized in that: Gaskets (9) are fixed at both ends of the interior of the spacer (10), and the gaskets (9) are sleeved on the outsides of both ends of the inner tube (6).

3. The cable protection tube with strong corrosion resistance according to claim 2, characterized in that: The gasket (9) is provided with a circular array of flow holes (8), and the length of the inner tube (6) is greater than the length of the outer tube (5).

4. The cable protection tube with strong corrosion resistance according to claim 1, characterized in that: The docking block (4) corresponds to the connecting block (12), and screw holes (7) are provided on both the docking block (4) and the connecting block (12), and the two corresponding screw holes (7) are connected by fixing bolts (2).

5. The cable protection tube with strong corrosion resistance according to claim 1, characterized in that: A sealing ring (13) is provided inside the docking groove (14), and the sealing ring (13) is fitted with the connecting end of the inner tube (6), and the through groove (3) corresponds to the inner tube (6).

6. The cable protection tube with strong corrosion resistance according to claim 1, characterized in that: The interlayer cavity (11) is filled with lime powder, and the space between the outer tube (5) and the inner tube (6) is filled with cement.

7. The cable protection tube with strong corrosion resistance according to claim 1, characterized in that: The end cover (1) is adapted to the outer tube (5) and the inner tube (6), and the spacer (10) is adapted to the interlayer cavity (11) and the gasket (9).

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