Cable silicon core pipe convenient for butt joint

Abstract

The utility model relates to the technical field of butt joint of silicon core pipes, in particular to a cable silicon core pipe convenient for butt joint, which is stable in connection and convenient to maintain and check. Comprising pipe bodies, the two ends of each pipe body are fixedly connected with a first splicing ring and a second splicing ring respectively, and when the adjacent pipe bodies are connected end to end, the adjacent first splicing rings and second splicing rings are spliced with each other; the connecting structure is used for connecting the first splicing ring and the second splicing ring which are spliced with each other; and the detection structure is used for detecting the leakproofness between the first splicing ring and the second splicing ring which are connected.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of silicon core pipe butt joint, especially to a cable silicon core pipe convenient for butt joint. BACKGROUND

[0002] The silicon core pipe is a kind of pipe material for protecting and guiding cable laying, usually made of high molecular material such as polyethylene (PE), with silica gel solid lubricant on inner wall, hence the name "silicon core pipe". This layer of silica gel solid can greatly reduce the friction between cable and inner wall of pipe, so that the cable is more easily put in or taken out, and also has good moisture-proof and corrosion-resistant effect. Silicon core pipe is widely used in communication, power and other fields, especially in long-distance cable laying occasions. In actual engineering, the length of a single silicon core pipe is often insufficient to cover the entire laying path, so it is necessary to connect multiple silicon core pipes to form a complete channel.

[0003] However, for the existing silicon core pipe, the following problems exist when connecting pipes to pipes:

[0004] 1. The traditional butt joint method is not firm after butt joint, and the silicon core pipes after butt joint may fall off each other;

[0005] 2. After the existing pipe is connected, it cannot judge whether its airtightness is qualified, and dust and other pollutants may invade. UTILITY MODEL CONTENTS

[0006] To solve the above technical problems, the utility model provides a cable silicon core pipe convenient for butt joint, which is stable in connection and convenient for maintenance and inspection.

[0007] The utility model discloses a cable silicon core pipe convenient for butt joint, which comprises:

[0008] The pipe body is fixedly connected with a first splicing ring and a second splicing ring at both ends, and when the adjacent pipe bodies are connected end to end, the adjacent first splicing ring and second splicing ring are spliced with each other.

[0009] The connecting structure is used for connecting the first splicing ring and the second splicing ring spliced with each other.

[0010] The detection structure is used for detecting the airtightness between the first splicing ring and the second splicing ring after connection.

[0011] Further, the first splicing ring comprises an inner adapter pipe and an outer adapter pipe, and the inner adapter pipe and the outer adapter pipe form an annular butt joint cavity therebetween; the second splicing ring comprises a plug-in sleeve, the plug-in sleeve is inserted into the matched annular butt joint cavity and abuts against the inner sidewalls of the inner adapter pipe and the outer adapter pipe, and the plug-in sleeve and the annular butt joint cavity are connected through the connecting structure.

[0012] Further, a ring-shaped groove is arranged in communication with an end of the ring-shaped docking cavity away from the insertion opening, and a first sealing ring is movably installed in the ring-shaped groove and elastically connected to an inner wall of the ring-shaped groove away from the ring-shaped docking cavity by a first elastic member.

[0013] Further, the movable end of the inner adapter tube is matched with the inner wall structure of the insertion barrel, and the end of the inner adapter tube is provided with a second sealing ring.

[0014] Further, the first sealing ring and the second sealing ring are both ring-shaped structures of a continuous wrinkle type and a gel material.

[0015] Further, the outer wall of the insertion barrel is provided with a protruding part extending along the axial direction thereof, and the inner wall of the outer adapter tube is provided with a first clamping groove matched with the protruding part, and when the insertion barrel is inserted into the ring-shaped docking cavity, the protruding part is inserted into the first clamping groove.

[0016] Further, the connecting structure comprises:

[0017] A mounting groove is arranged on the outer wall of the second splicing ring and internally provided with a second elastic member;

[0018] A wedge-shaped block is slidably arranged in the mounting groove, the bottom of the wedge-shaped block is connected to the second elastic member, and the inclined surface of the wedge-shaped block faces the free end of the second splicing ring;

[0019] A second clamping groove is arranged on the first splicing ring and matched with the wedge-shaped block.

[0020] Further, the bottom of the wedge-shaped block is provided with a limiting plate, and the mounting groove is provided with a clamping plate matched with the limiting plate.

[0021] Further, the connecting structure is arranged in multiple groups and uniformly distributed on the outer periphery of the pipe body.

[0022] Further, the detection structure comprises a flexible film, the periphery of the flexible film is fixed to the outer side of the first splicing ring by a fixing member, a closed space is formed between the flexible film and the side wall of the first splicing ring, and the space is in communication with the ring-shaped groove through a pipeline.

[0023] Compared with the prior art, the utility model has the beneficial effects that:

[0024] By the first splicing ring and the second splicing ring and in combination with the connecting structure, the connection of the two sections of the silicon core pipe after docking can be ensured to be more stable, and the risk of mutual falling off can be reduced; the design of the detection structure allows the construction personnel to check the airtightness of the connection part after completing the docking, so that no dust or other pollutants enter the inside of the pipeline, thereby improving the overall reliability and service life; the splicing design and the connecting structure simplify the connection operation between the silicon core pipes, improve the work efficiency, and reduce the probability of incorrect connection caused by improper operation. BRIEF DESCRIPTION OF DRAWINGS

[0025] The utility model makes further illustration in combination with the drawings.

[0026] Figure 1 It is the structure schematic drawing of the utility model;

[0027] Figure 2 It is the sectional view schematic drawing of the utility model;

[0028] Figure 3 It is Figure 2 The enlarged structure schematic drawing of A part in middle;

[0029] Figure 4 It is Figure 2 The enlarged structure schematic drawing of B part in middle;

[0030] Mark in drawing: 100, pipe body;110, first splicing ring;111, inner connecting pipe;112, outer connecting pipe;113, annular butt joint cavity;114, annular groove;115, first sealing ring;116, first elastic piece;117, second sealing ring;118, first clamping groove;120, second splicing ring;121, insertion barrel;122, protruding portion;200, connecting structure;210, installation groove;211, second elastic piece;220, wedge-shaped block;221, limiting plate;230, second clamping groove;231, clamping plate;300, detection structure;310, flexible film;320, fixing piece;330, pipeline. Specific implementation

[0031] The specific implementation of the utility model is described in further detail in combination with the drawings and examples. The following examples are used to illustrate the utility model, but not to limit the scope of the utility model.

[0032] As Figures 1 to 4 Indicated, a cable with silicon core pipe convenient for butt joint of the utility model, include: pipe body 100, two ends are fixedly connected with first splicing ring 110 and second splicing ring 120 respectively, when adjacent pipe body 100 is connected head to tail, adjacent first splicing ring 110 and second splicing ring 120 splice each other;Connecting structure 200 is used to connect first splicing ring 110 and second splicing ring 120 spliced each other;Detection structure 300 is used to detect the airtightness between first splicing ring 110 and second splicing ring 120 after being connected;

[0033] The pipe body 100 is responsible for protecting and guiding the laying of the cable, and the first splice ring 110 and the second splice ring 120 are connected quickly and safely between the pipe bodies 100, and the first splice ring 110 and the second splice ring 120 can be closely combined together to reduce the risk of mutual falling off in combination with the connecting structure 200; the detection structure 300 verifies whether there is leakage between the first splice ring 110 and the second splice ring 120 after connection, and through this structure, the complete sealing of the connection point can be ensured, and damage to the internal cable caused by external environmental factors such as moisture, dust, etc. is avoided.

[0034] The first splice ring 110 includes an inner adapter pipe 111 and an outer adapter pipe 112, and an annular docking cavity 113 is formed between the inner adapter pipe 111 and the outer adapter pipe 112, the second splice ring 120 includes a plug-in barrel 121, the plug-in barrel 121 is inserted into the matched annular docking cavity 113 and abuts with the inner side wall of the inner adapter pipe 111 and the outer adapter pipe 112, and the plug-in barrel 121 and the annular docking cavity 113 are connected through the connecting structure 200; the plug-in barrel 121 is in close contact with the inner side wall of the inner adapter pipe 111 and the outer adapter pipe 112, forming a multi-point contact to ensure the stability of the plug-in; the cooperation design of the plug-in barrel 121 and the annular docking cavity 113 enables the two sections of the silicon core pipe to be quickly docked, simplifying the installation process.

[0035] As a preferred embodiment of the above embodiment, the annular docking cavity 113 is provided with an annular groove 114 at an end away from the insertion port, a first sealing ring 115 is movably installed in the annular groove 114, and the first sealing ring 115 is elastically connected to the inner wall of the annular groove 114 away from the annular docking cavity 113 through a first elastic member 116; after the plug-in barrel 121 is inserted into the annular docking cavity 113, the plug-in barrel 121 is in close contact with the outer surface of the first sealing ring 115, the first sealing ring 115 moves in the annular groove 114, and the first elastic member 116 is compressed under stress, and the elastic property enables the first sealing ring 115 to maintain good sealing performance under different temperature conditions.

[0036] As a preferred embodiment of the above embodiment, the movable end of the inner adapter pipe 111 cooperates with the inner wall structure of the plug-in barrel 121, and the end of the inner adapter pipe 111 is provided with a second sealing ring 117; through the contact between the second sealing ring 117 and the inner wall of the plug-in barrel 121, an additional sealing barrier is formed, and together with the first sealing ring 115, a double-layer sealing system is formed to further improve the sealing performance of the connection.

[0037] As a preferred embodiment of the above, the first sealing ring 115 and the second sealing ring 117 are both annular structures of a continuous pleated type of colloid material; the pleated structure provides more elastic deformation space, so that the sealing ring can better restore its original shape when under pressure, maintaining long-term sealing effect; the pleated structure can absorb external vibration or impact, reducing the relative movement between the splicing barrel 121 and the annular docking cavity 113 or the inner connection pipe 111, improving the stability of the connection; the continuous pleated structure can freely stretch and shrink when the temperature changes, adapting to the thermal expansion and contraction of the material, maintaining the sealing effect unaffected; the selection of high-quality colloid material enables the sealing ring to maintain good performance within a wide temperature range.

[0038] As a preferred embodiment of the above, the splicing barrel 121 is provided with a protrusion 122 extending along its axis, and the inner wall of the outer connection pipe 112 is provided with a first clamping groove 118 adapted to the protrusion 122; when the splicing barrel 121 is inserted into the annular docking cavity 113, the protrusion 122 is inserted into the first clamping groove 118; the cooperation of the protrusion 122 and the first clamping groove 118 ensures the precise alignment of the splicing barrel 121 and the annular docking cavity 113, reduces the error during docking, improves the stability of the connection, and at the same time prevents the splicing barrel 121 from rotating in the annular docking cavity 113, ensuring the fixity and reliability of the connection point.

[0039] As a preferred embodiment of the above, the connection structure 200 includes: a mounting groove 210 opened on the outer wall of the second splicing ring 120, with a second elastic member 211 inside; a wedge block 220 sliding in the mounting groove 210, with its bottom connected to the second elastic member 211, and the slope of the wedge block 220 facing the free end of the second splicing ring 120; a second clamping groove 230 opened on the first splicing ring 110, adapted to the wedge block 220; when the splicing barrel 121 is inserted into the annular docking cavity 113, the wedge block 220 will automatically slide into the second clamping groove 230, achieving quick docking and simplifying the installation process; the cooperation of the wedge block 220 and the second clamping groove 230 provides a mechanical locking function, ensuring that the splicing barrel 121 will not easily come out after being inserted into the annular docking cavity 113, improving the stability of the connection; the elastic properties of the second elastic member 211 enable the wedge block 220 to always be tightly clamped in the second clamping groove 230, preventing loosening caused by vibration or external force; the design of the wedge block 220 and the second elastic member 211 enables the connection structure 200 to be easily disassembled and reconnected, facilitating maintenance and inspection when needed; during installation, whether the connection is in place can be judged by observing whether the wedge block 220 is completely clamped into the second clamping groove 230, ensuring the installation quality.

[0040] As the preferred of the above embodiment, the bottom of the wedge-shaped block 220 is provided with a limiting plate 221, and a clamping plate 231 matched with the limiting plate 221 is arranged in the mounting groove 210; the limiting plate 221 and the clamping plate 231 are matched to provide limiting, so that the wedge-shaped block 220 cannot be easily taken out when moving in the mounting groove 210, and the stability of the connection is further improved.

[0041] As the preferred of the above embodiment, the connecting structure 200 is arranged in multiple groups and uniformly distributed on the outer periphery of the pipe body 100; through this design, multi-point locking between the plug-in barrel 121 and the annular butt joint cavity 113 is ensured, the stability of the connection is further improved, the force on the connection point is uniformly distributed in each direction, local stress concentration is reduced, and connection failure caused by external force in a certain direction is prevented.

[0042] As the preferred of the above embodiment, the detection structure 300 includes a flexible film 310, the four sides of the flexible film 310 are fixed to the outside of the first splicing ring 110 through a fixing piece 320, a closed space is formed between the flexible film 310 and the side wall of the first splicing ring 110, and the space is communicated with the annular groove 114 through a pipeline 330; by observing the state of the flexible film 310, the sealing property of the connection can be judged in real time, and if there is leakage at the connection, the flexible film 310 will be deformed due to the change of internal pressure, thereby providing real-time visual feedback.

[0043] The utility model discloses a cable silicon core pipe convenient to butt joint, which works as follows: first, a second splicing ring 120 of a section of silicon core pipe is aligned with an annular butt joint cavity 113 of a first splicing ring 110 of another section of silicon core pipe, and then slowly inserted; during the insertion process, a protruding part 122 of an outer wall of a plug-in barrel 121 will gradually slide into a first clamping groove 118 in an inner wall of an outer connecting pipe 112, ensuring accurate alignment of the plug-in barrel 121 and the annular butt joint cavity 113; as the plug-in barrel 121 goes deeper, a wedge-shaped block 220 in a mounting groove 210 will abut against the inner wall of the outer connecting pipe 112 and gradually slide into the mounting groove 210 under the action of a second elastic piece 211; after the plug-in barrel 121 is completely inserted, the mounting groove 210 and a second clamping groove 230 are matched, the wedge-shaped block 220 is in the second clamping groove 230 under the action of the second elastic piece 211, and mechanical locking is realized; a limiting plate 221 at the bottom of the wedge-shaped block 220 is matched with a clamping plate 231 to prevent the wedge-shaped block 220 from falling off; an end of the plug-in barrel 121 abuts against a first sealing ring 115, the first sealing ring 115 moves towards the inside of an annular groove 114, a first elastic piece 116 is compressed under stress, and gas in the annular groove 114 flows outwards to the space between the flexible film 310 and the side wall of the first splicing ring 110 through the pipeline 330; the state of the flexible film 310 is observed to judge the sealing property of the connection, and if the connection is sealed, the gas will make the flexible film 310 be lifted up.

[0044] The silicon core pipe for cable convenient for butt joint has installation mode, connection mode or setting mode which are common mechanical modes, and as long as the beneficial effects can be achieved, implementation can be carried out.

[0045] The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the technical principles of the present application, a number of improvements and modifications can be made, and these improvements and modifications should be considered as the protection scope of the present application.

Claims

1. A silicon core tube for a cable facilitating mating, characterized by, The utility model relates to a pipe body (100) is connected with first splicing ring (110) and second splicing ring (120) respectively, when adjacent pipe body (100) is connected end to end, adjacent first splicing ring (110) and second splicing ring (120) splice each other, connecting structure (200) is used for connecting first splicing ring (110) and second splicing ring (120) that splice each other, detection structure (300) is used for detecting the airtightness between first splicing ring (110) and second splicing ring (120) after being connected. The first splicing ring (110) includes an inner adapter pipe (111) and an outer adapter pipe (112), an annular docking cavity (113) is formed between the inner adapter pipe (111) and the outer adapter pipe (112), the second splicing ring (120) includes a plug-in barrel (121), the plug-in barrel (121) is inserted into the matching annular docking cavity (113) and abuts against the inner sidewalls of the inner adapter pipe (111) and the outer adapter pipe (112), and the plug-in barrel (121) and the annular docking cavity (113) are connected through the connecting structure (200). A ring-shaped groove (114) is provided at an end of the annular docking cavity (113) away from an insertion opening, a first sealing ring (115) is movably mounted in the ring-shaped groove (114), and the first sealing ring (115) is elastically connected to the inner wall of the ring-shaped groove (114) away from the annular docking cavity (113) through a first elastic member (116). The detection structure (300) includes a flexible film (310), the flexible film (310) is fixed to the outer side of the first splicing ring (110) through a fixing member (320), a closed space is formed between the flexible film (310) and the sidewall of the first splicing ring (110), and the space is communicated with the ring-shaped groove (114) through a pipeline (330).

2. The silicon core tube for cable facilitating interfacing as claimed in claim 1 wherein, The movable end of the inner adapter pipe (111) is matched with the inner wall structure of the plug-in barrel (121), and a second sealing ring (117) is arranged at the end of the inner adapter pipe (111).

3. The silicon core tube for cable facilitating interfacing as claimed in claim 2, wherein, The first sealing ring (115) and the second sealing ring (117) are both annular structures made of a continuous wrinkle type of gel material.

4. The silicon core tube for cable facilitating interfacing as recited in claim 3, wherein, A protruding portion (122) extending along the axis of the plug-in barrel (121) is arranged on the outer wall of the plug-in barrel (121), a first clamping groove (118) matched with the protruding portion (122) is arranged on the inner wall of the outer adapter pipe (112), and when the plug-in barrel (121) is inserted into the annular docking cavity (113), the protruding portion (122) is inserted into the first clamping groove (118).

5. The silicon core tube for cable facilitating interfacing as recited in claim 3, wherein, The connecting structure (200) includes:

6. The silicon core tube for cables facilitating interfacing of claim 5, wherein, a mounting groove (210) formed in the outer wall of the second splicing ring (120) and provided with a second elastic member (211) inside, 7. The silicon core tube for cable facilitating interfacing as recited in claim 2, wherein, a wedge-shaped block (220) sliding in the mounting groove (210) and connected to the second elastic member (211) at the bottom, and the inclined surface of the wedge-shaped block (220) faces the free end of the second splicing ring (120), 8. The silicon core tube for cable facilitating interfacing as recited in claim 2, wherein, ​ ​ ​ A second clamping groove (230) is arranged on the first joint ring (110) and is matched with the wedge-shaped block (220).

9. The silicon core tube for a cable facilitating interfacing as defined in claim 8, wherein, A limiting plate (221) is arranged at the bottom of the wedge-shaped block (220), and a clamping plate (231) matched with the limiting plate (221) is arranged in the mounting groove (210).

10. The silicon core tube for cables facilitating interfacing of claim 1, wherein, The connecting structure (200) is arranged in multiple groups and is uniformly distributed on the outer periphery of the pipe body (100).

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