Butt joint connection device for bwfrp flame-retardant traction pipe

Abstract

The application belongs to the technical field of cable protection pipe construction, and discloses a butt joint connecting device of BWFRP flame-retardant traction pipe, which comprises a fixing sleeve, a traction protection pipe is arranged at the bottom of the fixing sleeve, a support pipe pillow is arranged on the traction protection pipe, a sealing rubber ring is arranged on the traction protection pipe, a joint pipe is arranged on the sealing rubber ring, and the butt joint connecting device further comprises a double-pipe synchronous butt joint part arranged in the inside of the fixing sleeve. The fixing sleeve is fixed by driving a moving plug plate to be inserted into a pipe groove formed by land excavation through a transmission motor and a screw rod, a screw sleeve and a backing plate are driven to move by a speed reducer and a screw rod, the screw sleeve and the backing plate drive an arc plate to synchronously clamp the traction protection pipe through a bevel and a slide rod, the backing plate and the arc plate synchronously push and butt joint the two traction protection pipes, manual pushing for installation is not needed, the labor intensity is low, the construction efficiency is improved, and a single person can quickly complete the butt joint installation of the BWFRP flame-retardant pipe.

Description

Technical Field

[0001] This invention belongs to the field of cable protection pipe construction technology, specifically a docking connection device for BWFRP flame-retardant traction pipe. Background Technology

[0002] BWFRP flame-retardant traction pipe is a fiber-braided pultruded integrated cable protection pipe. It uses alkali-free glass fiber as the reinforcing skeleton and flame-retardant modified thermosetting resin as the matrix. It has the characteristics of high ring stiffness, excellent tensile strength, self-extinguishing after flame removal, and smooth inner wall with low friction. It is widely used in municipal power grid and pipeline cable traction laying projects. The pipe is suitable for underground buried fire protection needs and is the mainstream cable protection pipe material to replace MPP and ordinary fiberglass pipes. During on-site construction, special joints and sealing rings are required to seal the connection between the two sections of the pipe.

[0003] Currently, the connection construction of BWFRP flame-retardant pipes relies on straight connectors and rubber rings to achieve sealing. The conventional operation method is to manually push the pipe by hand, pressing one end of the BWFRP flame-retardant pipe with the rubber ring into the connector. The contact between the rubber ring and the inner wall of the connector generates a large frictional resistance. The manual pushing is labor-intensive, usually requiring two people to lift both ends of the BWFRP flame-retardant pipe for installation. It is impossible to connect the two pipes simultaneously, resulting in low connection construction efficiency. Summary of the Invention

[0004] To address the problems mentioned in the background art, the present invention provides a docking connection device for BWFRP flame-retardant traction pipes, including a fixing sleeve, a traction protection pipe disposed at the bottom of the fixing sleeve, a support pipe pillow sleeved on the traction protection pipe, a sealing ring sleeved on the traction protection pipe, and a connector pipe sleeved on the sealing ring, and further comprising:

[0005] The dual-tube synchronous docking component is located inside the fixed sleeve and is used to improve the docking efficiency of the traction protection tube.

[0006] The dual-tube synchronous docking component includes a geared motor fixedly connected inside the fixed sleeve. The output end of the geared motor is fixedly connected to a screw rod. A screw sleeve is threaded onto the screw rod. The bottom of the screw sleeve extends to the bottom of the fixed sleeve and is fixedly connected to a pad. An automatic clamping component is provided on the screw sleeve. A sliding fixing component is provided inside the fixed sleeve.

[0007] The self-rotating alignment component, mounted on the fixed sleeve, is used to improve the alignment speed between the traction protection tube and the connector tube.

[0008] In the above technical solution, preferably, the automatic clamping component includes two sleeve plates fixedly connected to the screw sleeve. The top and bottom of the fixed sleeve are provided with two horizontal openings, and two oblique openings are provided inside the horizontal openings. A sliding rod is provided inside the oblique openings. A fixing groove is provided on the sliding rod. The sleeve plate is sleeved on the sliding rod through the fixing groove. An arc-shaped plate is fixedly connected to the bottom of the sliding rod, and a rubber pad is fixedly connected inside the arc-shaped plate.

[0009] In the above technical solution, preferably, a guide plate is fixedly connected inside the sleeve plate, the slide rod is sleeved on the guide plate, a circular sleeve is fixedly connected inside the fixed sleeve, and one end of the screw extends into the interior of the circular sleeve.

[0010] In the above technical solution, preferably, the sliding fastener includes two movable inserts disposed inside the fixed sleeve, a drive motor is disposed inside the fixed sleeve, one side of the drive motor is fixedly connected to the movable inserts, the output end of the drive motor is fixedly connected to a screw rod, and one of the movable inserts is threadedly connected to the screw rod.

[0011] In the above technical solution, preferably, one end of the screw is fixedly connected to a retaining ring, and the inside of the fixed sleeve is fixedly connected to two symmetrically arranged buffer pads.

[0012] In the above technical solution, preferably, the self-rotating alignment component includes a toothed plate fixedly connected to the slide rod, two toothed cylinders are hinged to the fixed sleeve via a shaft, the toothed plate meshes with the toothed cylinders, a rotating plate is fixedly connected to one side of the toothed cylinder, one end of the rotating plate extends to the bottom of the fixed sleeve, one side of the rotating plate contacts one end of the sealing ring, and the other side of the rotating plate contacts one end of the connector tube.

[0013] In the above technical solution, preferably, four baffles are fixedly connected to the bottom of the fixed sleeve, one side of the baffles is in contact with the surface of the rotating plate, a guide rod is fixedly connected inside the fixed sleeve, and the movable insert plate is sleeved on the guide rod.

[0014] In the above technical solution, preferably, the bottom of the fixed sleeve is provided with a support positioning component, the support positioning component includes four arc-shaped sleeves fixedly connected to the bottom of the fixed sleeve, the arc-shaped sleeves are fitted onto the traction protection tube, the inside of the arc-shaped plate is hinged to a roller through a shaft, and a mudguard plate located on the outside of the fixed sleeve is fixedly connected to the movable insert plate.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] This invention uses a drive motor and a screw to move a plate into a trench formed by excavation to fix the fixing sleeve. A reduction motor and a screw drive the screw sleeve and a pad to move. The screw sleeve and the pad move through a bevel and a sliding rod to drive an arc plate to simultaneously clamp the traction protection pipe. This allows the pad and the arc plate to push and connect the two traction protection pipes simultaneously. No manual pushing is required for installation, reducing labor intensity and improving construction efficiency. A single person can quickly complete the connection and installation of BWFRP flame-retardant pipes.

[0017] Furthermore, the difficulty in quickly aligning the traction protection pipe with the connector pipe can lead to discrepancies in insertion depth between the two traction protection pipes, affecting the overall sealing and straightness of the pipeline. However, by incorporating a toothed plate, toothed cylinder, and rotating plate structure in the self-rotating alignment component, the rotating plate can limit the traction protection pipe, ensuring that the end faces of the two traction protection pipes are flush. As the slide rod moves along the inclined opening, the meshing transmission between the toothed plate and the toothed cylinder drives the rotating plate to rotate synchronously around the shaft, preventing the rotating plate from obstructing the clamping and moving traction protection pipe. This ensures that the force is evenly distributed during the advancement of the dual-pipe synchronous docking component, effectively avoiding the problem of over-insertion or under-insertion of a single pipe, and guaranteeing the consistency of the docking depth and the reliability of the construction quality.

[0018] Furthermore, the fixed sleeve is only fixed by a sliding fastener, lacking a positioning benchmark, and cannot be stably placed on the traction protection pipe. It is prone to tilting, requiring repeated manual support and correction of the device, which is inconvenient for quick positioning. However, through the structural design of the arc-shaped sleeve, rollers, and mudguards in the support and positioning components, four arc-shaped sleeves are directly fitted onto the traction protection pipe, providing stable support for the fixed sleeve. This allows it to quickly self-position at the junction of the two traction protection pipes without the need for long-term manual support. At the same time, the arc-shaped plate has rollers hinged to it through a shaft, which reduces frictional resistance when the traction protection pipe is pushed. The mudguard increases the contact area between the moving insert plate and the soil, preventing the moving insert plate from being over-inserted into the pipe groove. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the arc-shaped plate of the present invention;

[0021] Figure 3 This is a partial cross-sectional view of the fixing sleeve of the present invention;

[0022] Figure 4 This is a schematic diagram of the structure of the threaded sleeve of the present invention;

[0023] Figure 5 This is a schematic diagram of the structure of the rotating plate after rotation according to the present invention;

[0024] Figure 6 This is a cross-sectional schematic diagram of the connector tube of the present invention.

[0025] In the diagram: 1. Fixed sleeve; 2. Traction protection pipe; 3. Support pipe pillow; 4. Sealing ring; 5. Connector pipe; 6. Double pipe synchronous docking component; 61. Gear motor; 62. Screw one; 63. Screw sleeve; 64. Pad; 65. Automatic clamping component; 651. Sleeve plate; 652. Horizontal opening; 653. Slanted opening; 654. Slide rod; 655. Fixed groove; 656. Arc plate; 657. Rubber pad; 66. Sliding fixing component; 661. Moving insert plate; 662. Drive motor; 663. Screw two; 7. Self-rotating alignment component; 71. Toothed plate; 72. Toothed cylinder; 73. Rotating plate; 8. Guide plate; 9. Round sleeve; 10. Retaining ring; 11. Buffer pad; 12. Baffle; 13. Guide rod; 14. Support positioning component; 141. Arc sleeve; 142. Roller; 143. Mudguard. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] like Figures 1 to 4 As shown, the present invention provides a docking connection device for a BWFRP flame-retardant traction pipe, including a fixing sleeve 1, a traction protection pipe 2 disposed at the bottom of the fixing sleeve 1, a support pipe pillow 3 sleeved on the traction protection pipe 2, a sealing ring 4 sleeved on the traction protection pipe 2, and a connector pipe 5 sleeved on the sealing ring 4, and further including:

[0028] The dual-tube synchronous docking component 6 is located inside the fixed sleeve 1 and is used to improve the docking efficiency of the traction protection tube 2.

[0029] The dual-tube synchronous docking component 6 includes a geared motor 61 fixedly connected inside the fixed sleeve 1. The output end of the geared motor 61 is fixedly connected to a screw 62. A screw sleeve 63 is threadedly connected to the screw 62. The bottom of the screw sleeve 63 extends to the bottom of the fixed sleeve 1 and is fixedly connected to a pad 64. An automatic clamping component 65 is provided on the screw sleeve 63. A sliding fixing component 66 is provided inside the fixed sleeve 1.

[0030] The self-rotating alignment component 7 is mounted on the fixed sleeve 1 and is used to improve the alignment speed between the traction protection tube 2 and the connector tube 5.

[0031] Specifically, the traction protection pipe 2 is a BWFRP pipe for cable laying, which has excellent flame retardant effect. The fixing sleeve 1 has an opening for the sliding of the threaded sleeve 63. The double pipe synchronous docking component 6 drives the screw 62 to rotate through the reduction motor 61. The rotational motion is converted into the linear displacement of the threaded sleeve 63 by the thread transmission principle, which drives the pad 64 and the automatic clamping component 65 to synchronously advance the two traction protection pipes 2 axially. Compared with the traditional manual one-sided push operation mode, this design eliminates the pipe skew problem caused by uneven force application, realizes the force balance and synchronous feed of the two pipes, and integrates the propulsion power into the fixing sleeve 1. A single person can operate to complete the high-intensity docking operation, reduce labor intensity, and improve construction efficiency and docking quality. The side of the pad 64 closest to the traction protection pipe 2 is in contact with the surface of the traction protection pipe 2.

[0032] like Figures 3 to 6 As shown, the automatic clamping component 65 includes two sleeve plates 651 fixedly connected to the screw sleeve 63. The top and bottom of the fixed sleeve 651 are provided with two horizontal openings 652. The inside of the horizontal openings 652 is provided with two oblique openings 653. The inside of the oblique openings 653 is provided with a slide rod 654. The slide rod 654 is provided with a fixing groove 655. The sleeve plates 651 are sleeved on the slide rod 654 through the fixing groove 655. The bottom of the slide rod 654 is fixedly connected with an arc plate 656. The inside of the arc plate 656 is fixedly connected with a rubber pad 657.

[0033] Specifically, a reinforcing rib is fixedly connected to the slide rod 654 and connected to the arc plate 656. The reinforcing rib can improve the connection strength between the slide rod 654 and the arc plate 656 and prevent the arc plate 656 from deforming. When the screw sleeve 63 moves, it will drive the sleeve plate 651 to move. The sleeve plate 651 drives the slide rod 654 to move along the first inclined opening 653 through the fixing groove 655. The slide rod 654 drives the arc plate 656 and the rubber pad 657 to clamp the traction protection tube 2. Since one side of the traction protection tube 2 is in contact with the surface of the pad 64, when the slide rod 654 enters the interior of the horizontal opening 652, the pad 64 and the arc plate 656 will drive the traction protection tube 2 to move. The rubber pad 657 increases the friction with the outer wall of the traction protection tube 2 to prevent slippage. When the slide rod 654 enters the interior of the second inclined opening 653, the slide rod 654 will drive the arc plate 656 away from the traction protection tube 2, and the installation is completed.

[0034] like Figures 3 to 6 As shown, a guide plate 8 is fixedly connected inside the sleeve 651, and a slide rod 654 is sleeved on the guide plate 8. A circular sleeve 9 is fixedly connected inside the fixed sleeve 1, and one end of the screw 62 extends into the interior of the circular sleeve 9.

[0035] Specifically, by setting the guide plate 8, the movement trajectory of the slide bar 654 is precisely constrained, preventing the slide bar 654 from rotating during movement. This ensures the parallelism and concentricity of the arc plate 656 during clamping, improving the stability of clamping. At the same time, by setting the circular sleeve 9, one end of the screw 62 can be supported, improving the stability of the screw 62 during rotation and preventing deformation of the screw 62.

[0036] like Figures 1 to 3 As shown, the sliding fastener 66 includes two movable insert plates 661 disposed inside the fixed sleeve 1. A drive motor 662 is disposed inside the fixed sleeve 1. One side of the drive motor 662 is fixedly connected to the movable insert plate 661. The output end of the drive motor 662 is fixedly connected to a screw rod 663. One movable insert plate 661 is threadedly connected to the screw rod 663.

[0037] Specifically, during startup, the drive motor 662 moves together with the movable insert plate 661. A screw 663 drives the movable insert plate 661 to move, realizing the bidirectional opening or closing of the two movable insert plates 661. After the movable insert plate 661 is inserted into the soil layer on the side wall of the pipe trench, it provides a strong anchoring force for the entire fixed sleeve 1, effectively offsetting the reaction force generated when the double-pipe synchronous docking piece 6 is pushed forward, preventing the device from moving as a whole, and ensuring the effective transmission of the propulsion force. When the two traction protection pipes 2 are not in the center position of the pipe trench, the position of the two movable insert plates 661 can be slidably adjusted.

[0038] like Figures 1 to 3 As shown, a retaining ring 10 is fixedly connected to one end of the screw 663, and two symmetrically arranged buffer pads 11 are fixedly connected inside the fixed sleeve 1.

[0039] Specifically, by setting the retaining ring 10, it is possible to prevent the screw 663 from detaching from the movable insert plate 661, and the buffer pad 11 can play a role in buffering and shock absorption, preventing the drive motor 662 and the screw 663 from colliding with the inner wall of the fixed sleeve 1.

[0040] like Figure 5 and Figure 6 As shown, the self-rotating alignment member 7 includes a toothed plate 71 fixedly connected to the slide rod 654. Two toothed cylinders 72 are hinged to the fixed sleeve 1 via a shaft. The toothed plate 71 meshes with the toothed cylinders 72. A rotating plate 73 is fixedly connected to one side of the toothed cylinder 72. One end of the rotating plate 73 extends to the bottom of the fixed sleeve 1. One side of the rotating plate 73 contacts one end of the sealing ring 4, and the other side of the rotating plate 73 contacts one end of the connector tube 5.

[0041] Specifically, the rotating plate 73 can limit the traction protection pipe 2, ensuring that the end faces of the two traction protection pipes 2 are flush. During the movement of the slide rod 654 along the inclined plate 653, the meshing transmission between the toothed plate 71 and the toothed cylinder 72 drives the rotating plate 73 to rotate synchronously around the shaft, so that the rotating plate 73 will not obstruct the clamping and moving traction protection pipe 2. In this way, the force on the double pipe synchronous docking part 6 is uniform during the advancement, effectively avoiding the problem of excessive or incomplete insertion of a single pipe, ensuring the consistency of the docking depth and the reliability of the construction quality.

[0042] like Figures 3 to 6 As shown, four baffles 12 are fixedly connected to the bottom of the fixed sleeve 1. One side of the baffle 12 is in contact with the surface of the rotating plate 73. A guide rod 13 is fixedly connected inside the fixed sleeve 1, and the movable insert plate 661 is sleeved on the guide rod 13.

[0043] Specifically, by setting baffle 12, the rotating plate 73 can be limited, improving the impact resistance of the rotating plate 73 and preventing breakage at the connection between the rotating plate 73 and the toothed cylinder 72. By setting guide rod 13, the moving insert plate 661 can be supported and guided, improving the stability of the moving insert plate 661.

[0044] like Figures 1 to 3 As shown, a support positioning component 14 is provided at the bottom of the fixed sleeve 1. The support positioning component 14 includes four arc-shaped sleeves 141 fixedly connected to the bottom of the fixed sleeve 1. The arc-shaped sleeves 141 are fitted onto the traction protection tube 2. Rollers 142 are hinged inside the arc plate 656 through a shaft. A mudguard 143 located on the outside of the fixed sleeve 1 is fixedly connected to the movable insert plate 661.

[0045] Specifically, four arc-shaped sleeves 141 are directly fitted onto the traction protection pipe 2, providing stable support for the fixed sleeve 1, enabling it to quickly self-position at the junction of the two traction protection pipes 2 without the need for long-term manual support. At the same time, rollers 142 are hinged inside the arc-shaped plate 656 via shafts, reducing frictional resistance when the traction protection pipe 2 is pushed. The mudguard 143 increases the contact area between the movable insert plate 661 and the soil, preventing the movable insert plate 661 from being over-inserted into the pipe groove.

[0046] Working principle and usage process of this invention:

[0047] When in use, a pipe groove is dug out in advance, sealing rings 4 are installed on the ends of the two traction protection pipes 2, the connector pipe 5 is sleeved on the outside of the sealing rings 4, the support pipe pillow 3 is sleeved on the traction protection pipe 2, the two traction protection pipes 2 are then placed in the docking position, the fixing sleeve 1 is placed on the traction protection pipe 2 through the arc sleeve 141, the fixing sleeve 1 is pushed so that the other side of the rotating plate 73 contacts one end of the connector pipe 5, and then the traction protection pipe 2 is pushed so that the sealing ring 4 at one end of the traction protection pipe 2 contacts the other side of the rotating plate 73.

[0048] Start the drive motor 662, which drives the screw 663 to rotate, driving the two sets of movable insert plates 661 to extend in both directions along the guide rod 13 and insert into the soil layer on the side wall of the pipe trench to complete the anchoring of the fixing sleeve 1.

[0049] Start the reduction motor 61, which drives the screw 62 to rotate stably inside the sleeve 9. The screw 62 drives the sleeve 63 to move horizontally. The sleeve 63 drives the sleeve plate 651 and the pad 64 to move. When the sleeve plate 651 drives the slide rod 654 to move along the first inclined opening 653 through the fixing groove 655, the slide rod 654 drives the arc plate 656 and the rubber pad 657 to clamp the traction protection tube 2. Since one side of the traction protection tube 2 is in contact with the surface of the pad 64, when the slide rod 654 enters the interior of the horizontal opening 652, the pad 64 and the arc plate 656 will drive the traction protection tube 2 to move. The rubber pad 657 increases the friction with the outer wall of the traction protection tube 2 to prevent slippage. When the slide rod 654 enters the interior of the second inclined opening 653, the slide rod 654 will drive the arc plate 656 away from the traction protection tube 2, thus completing the synchronous docking of the two traction protection tubes 2.

[0050] When the slide bar 654 moves along the first inclined opening 653, the toothed plate 71 will drive the toothed cylinder 72 and the rotating plate 73 to rotate, so that the rotating plate 73 avoids the feed path and does not block the pushing action; no manual pushing is required throughout the process, and a single person can complete the construction.

[0051] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0052] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A docking connection device for a BWFRP flame-retardant traction pipe, comprising a fixing sleeve (1), a traction protection pipe (2) provided at the bottom of the fixing sleeve (1), a support pipe pillow (3) sleeved on the traction protection pipe (2), a sealing ring (4) sleeved on the traction protection pipe (2), and a connector pipe (5) sleeved on the sealing ring (4), characterized in that, Also includes: The dual-tube synchronous docking component (6) is set inside the fixed sleeve (1) to improve the docking efficiency of the traction protection tube (2); The dual-tube synchronous docking component (6) includes a geared motor (61) fixedly connected inside the fixed sleeve (1). The output end of the geared motor (61) is fixedly connected to a screw rod (62). A screw sleeve (63) is threadedly connected to the screw rod (62). The bottom of the screw sleeve (63) extends to the bottom of the fixed sleeve (1) and is fixedly connected to a pad (64). An automatic clamping component (65) is provided on the screw sleeve (63). A sliding fixing component (66) is provided inside the fixed sleeve (1). The self-rotating alignment component (7) is set on the fixed sleeve (1) to improve the alignment speed of the traction protection tube (2) and the connector tube (5).

2. The docking connection device for BWFRP flame-retardant traction pipe according to claim 1, characterized in that: The automatic clamping component (65) includes two sleeve plates (651) fixedly connected to the screw sleeve (63). The top and bottom of the fixed sleeve (1) are provided with two horizontal openings (652). The inside of the horizontal openings (652) are provided with two oblique openings (653). The inside of the oblique openings (653) is provided with a slide rod (654). The slide rod (654) is provided with a fixing groove (655). The sleeve plate (651) is sleeved on the slide rod (654) through the fixing groove (655). The bottom of the slide rod (654) is fixedly connected with an arc plate (656). The inside of the arc plate (656) is fixedly connected with a rubber pad (657).

3. The docking connection device for BWFRP flame-retardant traction pipe according to claim 2, characterized in that: The sleeve (651) is fixedly connected to a guide plate (8), the slide rod (654) is sleeved on the guide plate (8), the fixed sleeve (1) is fixedly connected to a round sleeve (9), and one end of the screw (62) extends into the round sleeve (9).

4. The docking connection device for BWFRP flame-retardant traction pipe according to claim 1, characterized in that: The sliding fastener (66) includes two movable inserts (661) disposed inside the fixed sleeve (1). A drive motor (662) is disposed inside the fixed sleeve (1). One side of the drive motor (662) is fixedly connected to the movable insert (661). The output end of the drive motor (662) is fixedly connected to a screw (663). One of the movable inserts (661) is threadedly connected to the screw (663).

5. The docking connection device for BWFRP flame-retardant traction pipe according to claim 4, characterized in that: One end of the screw (663) is fixedly connected to a retaining ring (10), and the inside of the fixed sleeve (1) is fixedly connected to two symmetrically arranged buffer pads (11).

6. The docking connection device for BWFRP flame-retardant traction pipe according to claim 4, characterized in that: The self-rotating alignment member (7) includes a toothed plate (71) fixedly connected to the slide rod (654). Two toothed cylinders (72) are hinged to the fixed sleeve (1) via a shaft. The toothed plate (71) meshes with the toothed cylinders (72). A rotating plate (73) is fixedly connected to one side of the toothed cylinders (72). One end of the rotating plate (73) extends to the bottom of the fixed sleeve (1). One side of the rotating plate (73) contacts one end of the sealing ring (4), and the other side of the rotating plate (73) contacts one end of the connector tube (5).

7. The docking connection device for BWFRP flame-retardant traction pipe according to claim 6, characterized in that: The bottom of the fixed sleeve (1) is fixedly connected to four baffles (12), one side of the baffles (12) is in contact with the surface of the rotating plate (73), and the inside of the fixed sleeve (1) is fixedly connected to a guide rod (13), and the movable insert plate (661) is sleeved on the guide rod (13).

8. The docking connection device for BWFRP flame-retardant traction pipe according to claim 4, characterized in that: The bottom of the fixed sleeve (1) is provided with a support positioning component (14). The support positioning component (14) includes four arc-shaped sleeves (141) fixedly connected to the bottom of the fixed sleeve (1). The arc-shaped sleeves (141) are sleeved on the traction protection tube (2). The inside of the arc-shaped plate (656) is hinged with a roller (142) through a shaft. The movable insert plate (661) is fixedly connected with a mudguard (143) located outside the fixed sleeve (1).

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