A two-way cable duct plug

Abstract

The present invention discloses a two-way plugging device for cable pipelines, which relates to the technical field of pipeline equipment and includes a pipeline. A plugging mechanism is inserted into the end of the pipeline, and a cable passes through the inside of the plugging mechanism. A fixing mechanism for clamping the cable is arranged inside the plugging mechanism. The fixing mechanism includes soft sheet kits fixedly installed on both sides of each rubber pad. Two adjacent soft sheet kits are in extrusion contact and assembled into an annular structure, and the cable passes through between the two assembled soft sheet kits. The fixing mechanism is adaptively sleeved on the outer side of the cable according to the size of the cable, and then the assembled plugging mechanism is inserted into the pipeline to complete the plugging of the pipeline. The two-way plugging device for cable pipelines disclosed by the present invention has the effects of convenient operation, high stability and high structural strength.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline equipment, and particularly relates to a two-way cable pipeline plugging device. Background Art

[0002] The plugging device is used for plugging empty pipes and pipes with cables of various sizes and specifications. The product is required to have high strength, flame retardancy, simple construction and maintenance, long service life, wide application range, and good plugging effect. It realizes waterproof, anti-rat, fireproof and anti-corrosion functions, and is applicable to various power equipment accessories, plastic products, and pipeline plugging products, maintaining a good operating environment for cable pipelines. Sectional or full-section plugging can reduce the probability of cable power transmission accidents and shorten the accident repair time.

[0003] In the market for plugging between multiple cables and pipelines, for example, when plugging three cables distributed in a "pin" shape, in order to ensure the sealing between the cable and the rubber pad after plugging and to adapt to fixing cables of different diameters, a sealing structure composed of several layers of rubber rings is usually provided between the cable and the rubber pad. When installing and fixing the cable, it is necessary to tear off the corresponding number of rubber rings according to the thickness of the cable. However, under long-term immersion in water and continuous flushing under high-intensity water pressure, dislocation and degumming will occur between the rubber rings, thus affecting the sealing stability and effect; and the plugging device adapted to multiple cables is usually composed of multiple rubber pads assembled together, and several bolts for fixing on the side are directly installed on the same sealing plate. When the operator twists the bolts, horizontal dislocation will occur between the adjacent bolts. At this time, the worker needs to twist each bolt in a small amplitude and multiple times, thus affecting the construction efficiency. Summary of the Invention

[0004] The present invention discloses a two-way cable pipeline plugging device, aiming to solve the technical problem that the structural stability and operation convenience of the traditional plugging device need to be improved when plugging multiple cables in pipelines in the existing market.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A two-way cable pipeline plugging device includes a pipeline, a plugging mechanism is plugged at the end of the pipeline, and a cable passes through the inside of the plugging mechanism. The plugging mechanism includes several rubber pads plugged inside the pipeline, the rubber pads are circularly distributed around the center, one end of several rubber pads is fixedly installed with a sealing plate, and the other end of several rubber pads is fixedly installed with a pressing plate. The sealing plate and the pressing plate have the same structure;

[0007] The interior of the plugging mechanism is provided with a fixing mechanism for clamping the cable. The fixing mechanism includes soft sheet kits fixedly installed on both sides of each rubber pad. Two adjacent soft sheet kits are in extrusion contact and assembled into an annular structure, and the cable passes through between the two assembled soft sheet kits.

[0008] The fixing mechanism is adaptively sleeved on the outer side of the cable according to the size of the cable, and then the assembled plugging mechanism is inserted into the interior of the pipeline to complete the plugging of the pipeline.

[0009] By arranging the fixing mechanism to cooperate with the plugging mechanism to complete the sealing and fixing of the cable, the fixing mechanism can be automatically adjusted according to the diameter of the cable, and different from the traditional rubber ring sealing method, the fixing mechanism can continuously maintain the fixing effect on the cable after fixing the cable by using the flexible folding method, thereby greatly improving the structural stability of traditional equipment.

[0010] In a preferred solution, the pressing plates are distributed inside the pipeline. A number of uniformly distributed bolt members are installed inside the sealing plate. The bolt members penetrate out of the interior of the rubber pad and are threadedly connected to the pressing plates. The sealing plate is pressed and fitted on the outer side of the end of the pipeline, and the outer diameter of the sealing plate is larger than the inner wall diameter of the pipeline.

[0011] By arranging a number of groups of circularly distributed and mutually fitting rubber pad structures, the rubber pad structures are used to clamp on the outer side of the cable. By screwing the bolt members, the pressing plates and the sealing plate on both sides of the rubber pad move centrically, thereby squeezing the rubber pad, causing the rubber pad to expand outward under pressure and press against the inner wall of the pipeline, thereby improving the structural stability after sealing.

[0012] In a preferred solution, the fixing mechanism further includes a number of plugging sheets uniformly inserted into the interior of the soft sheet kits. The length of the plugging sheets is greater than that of the soft sheet kits, and the ends of the plugging sheets penetrate out from the sides of the soft sheet kits. Flanging is provided on the inner walls at both ends of each soft sheet kit, and two adjacent soft sheet kits are mutually extruded and clamped through the flanging.

[0013] By arranging a soft sheet kit structure on the side of the rubber pad, the soft sheet kits are used to squeeze and fit with each other in pairs to form an annular structure to initially fix the passing cable. At the same time, a number of uniformly distributed plugging sheet structures are inserted into the interior of the soft sheet kits. By extracting the corresponding number of plugging sheets according to the diameter of the cable, and cooperating with the flanging structures at both ends of the soft sheet kits, the soft sheet kits are caused to fold and contract by extrusion, thereby firmly clamping on the outer side of the cable and maintaining the stability of the cable.

[0014] In a preferred embodiment, an outer arc portion is provided on the outer side of the rubber pad. The outer arc portion is in pressing contact with the inner wall of the pipeline. An outer flat portion is provided at the end of the rubber pad. Two adjacent rubber pads are spliced by pressing against each other through the outer flat portion. Inner arc portions are symmetrically provided on both sides inside the rubber pad. The soft film kit is fixedly installed on the side of the inner arc portion. An inner flat portion is further provided in the middle of the rubber pad. A plurality of the inner flat portions are in pressing contact with each other to maintain the stability after splicing of the plurality of rubber pads. The bolt member includes two first bolt rods symmetrically distributed on the outer side of the sealing plate and a second bolt rod distributed in the middle of the sealing plate. The plurality of first bolt rods and the second bolt rod are symmetrically distributed in a triangle. The twisted first bolt rod will drive the outer arc portion and the outer flat portion to expand and press outward, and the twisted second bolt rod will drive the inner arc portion and the inner flat portion to expand and press outward.

[0015] By specially defining the shape of the rubber pad and using the first bolt rod and the second bolt rod provided to respectively press different parts of the rubber pad, the outer arc portion and the inner wall of the pipeline are pressed, the outer flat portions are pressed against each other, the inner arc portion and the soft film kit are pressed, and the inner flat portions are pressed against each other, so as to maintain the overall stability and greatly improve the stability of the equipment after installation.

[0016] A gap groove is formed inside each sealing plate. The gap groove divides the sealing plate into several intervals, so that the twisted first bolt rod and the second bolt rod do not interfere with each other.

[0017] By providing a gap groove to divide the sealing plate into several intervals, when an operator twists the bolt member, there is no need to perform small-scale operations multiple times, thus greatly improving the convenience of using the seal.

[0018] As can be seen from the above, a two-way cable pipeline seal provided by the present invention has the following technical effects.

[0019] First: By specially defining the shape of the rubber pad structure of the traditional seal and using the first bolt rod and the second bolt rod at different positions to respectively press different parts of the rubber pad, the outer arc portion and the inner wall of the pipeline are pressed, the outer flat portions are pressed against each other, the inner arc portion and the soft film kit are pressed, and the inner flat portions are pressed against each other, so that the rubber pad and the pipeline are pressed and fixed, the rubber pads are pressed and fixed to each other, and the rubber pad and the cable are pressed and fixed, thereby maintaining the overall stability and greatly improving the stability of the traditional equipment after installation.

[0020] Second: By arranging a soft sheet kit structure on the side of the rubber pads that are squeezed pairwise, the soft sheet kits are squeezed and fitted pairwise to form an annular structure, and the cables passing through are preliminarily fixed. At the same time, a number of evenly distributed plug sheet structures are inserted inside the soft sheet kits. By extracting the corresponding number of plug sheets according to the diameter of the cable, the diameter of the cable is adapted to clamp and fix different types of cables. Thereafter, in cooperation with the flanging structures at both ends of the soft sheet kit, the soft sheet kit is caused to fold and contract by extrusion, so as to firmly clamp on the outside of the cable and maintain the stability of the cable. Different from the traditional rubber ring fixation, using the folding of the soft sheet kit to clamp and fix can continuously maintain the stability and structural strength of the cable after being clamped and fixed.

[0021] Third: Based on the sealing plate structure of the traditional plugging device, a clearance groove is further arranged inside the sealing plate. The clearance groove divides the sealing plate into several intervals, so that when the operator turns the bolt parts, the bolt parts will not interfere with each other, thus ensuring that it is not necessary to turn in small increments multiple times, and further greatly improving the convenience of using the plugging device. Brief Description of the Drawings

[0022] Figure 1 It is a schematic diagram of the overall structure proposed by the present invention.

[0023] Figure 2 It is a schematic diagram of the structure of the plugging mechanism proposed by the present invention.

[0024] Figure 3 It is an exploded view of the structure of the plugging mechanism proposed by the present invention.

[0025] Figure 4 It is a side view of the sealing plate structure proposed by the present invention.

[0026] Figure 5 It is a schematic diagram of the clamping structure of the soft sheet kit proposed by the present invention.

[0027] Figure 6 Proposed by the present invention Figure 5 The enlarged view of the structure at A in

[0028] Figure 7 It is a schematic diagram of the state when the cable squeezes the soft sheet kit proposed by the present invention.

[0029] Figure 8 It is an exploded view of the structure of the soft sheet kit proposed by the present invention.

[0030] Figure 9 It is a schematic diagram of the rubber pad structure proposed by the present invention.

[0031] Figure 10 It is an exploded view of the sealing plate structure proposed by the present invention.

[0032] Figure 11 Proposed by the present invention Figure 7 The enlarged view of the structure at position B in

[0033] In the figure: 1, pipeline; 2, plugging mechanism; 201, rubber pad; 2011, outer arc part; 2012, outer flat part; 2013, inner arc part; 2014, inner flat part; 202, sealing plate; 2021, gap groove; 2022, positioning strip; 2023, positioning groove; 2024, engaging part; 2025, engaging groove; 2026, arc surface groove; 203, pressing plate; 204, bolt member; 2041, first type of bolt rod; 2042, second type of bolt rod; 3, fixing mechanism; 301, soft sheet kit; 302, plugging piece; 303, folded edge; 304, pulling groove; 4, cable. Specific embodiments

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0035] A two-way plugging device for cable pipelines disclosed by the present invention is mainly applied to the scenario of leak prevention and plugging of cable pipelines.

[0036] Refer to Figures 1 to 11 , a two-way plugging device for cable pipelines, includes a pipeline 1, a plugging mechanism 2 is plugged at the end of the pipeline 1, and a cable 4 passes through the inside of the plugging mechanism 2. The plugging mechanism 2 includes a plurality of rubber pads 201 plugged inside the pipeline 1, and the rubber pads 201 are circularly distributed around the center. One end of a plurality of rubber pads 201 is fixedly installed with a sealing plate 202, and the other end of a plurality of rubber pads 201 is fixedly installed with a pressing plate 203. The sealing plate 202 and the pressing plate 203 have the same structure;

[0037] A fixing mechanism 3 for clamping the cable 4 is arranged inside the plugging mechanism 2. The fixing mechanism 3 includes soft sheet kits 301 fixedly installed on both sides of each rubber pad 201. Two adjacent soft sheet kits 301 are in extrusion contact and assembled into an annular structure, and the cable 4 passes through between the two assembled soft sheet kits 301;

[0038] The fixing mechanism 3 is adaptively sleeved on the outer side of the cable 4 according to the size of the cable 4, and then the assembled plugging mechanism 2 is inserted into the pipeline 1 to complete the plugging of the pipeline 1.

[0039] In this embodiment: First, the worker adjusts the size of the fixing mechanism 3 according to the size of the cable 4, then holds the plugging mechanism 2 by hand, and sequentially passes the three cables 4 located inside the pipe 1 through the inside of the fixing mechanism 3. After passing through, the worker squeezes the plugging mechanism 2 forcefully and centrally, causing the plugging mechanism 2 to close while squeezing the fixing mechanism 3, making the fixing mechanism 3 fold and contract to clamp and fix the cable 4. After that, the worker aligns the assembled plugging mechanism 2 with the pipe orifice of the pipe 1 and uses a hammer to strike the outside of the plugging mechanism 2 until the plugging mechanism 2 enters the inside of the pipe 1. At this time, the worker turns the plugging mechanism 2 with a wrench, causing the plugging mechanism 2 to squeeze and fix to the inner wall of the pipe 1, completing the installation.

[0040] Referring to Figures 1 to 4 、 Figures 9 to 10 , in a preferred embodiment, the pressing plates 203 are distributed inside the pipe 1. A number of uniformly distributed bolt members 204 are installed inside the sealing plate 202. The bolt members 204 penetrate through the inside of the rubber gasket 201 and are threadedly connected to the pressing plates 203. The sealing plate 202 is pressed and fitted to the outside of the end of the pipe 1, and the outer diameter of the sealing plate 202 is larger than the inner wall diameter of the pipe 1.

[0041] First, the worker adjusts the size of the fixing mechanism 3 according to the size of the cable 4, then holds three rubber gaskets 201 by hand, and sequentially passes the three cables 4 located inside the pipe 1 through the circular structure formed by the three rubber gaskets 201. At this time, each cable 4 will be separately distributed inside the fixing mechanism 3. After that, the worker squeezes the three rubber gaskets 201 forcefully and centrally, causing the rubber gaskets 201 to squeeze and fit together while squeezing the fixing mechanism 3, making the fixing mechanism 3 fold and contract to clamp and fix the cable 4. After that, the worker aligns the assembled several rubber gaskets 201 with the pipe orifice of the pipe 1 and uses a hammer to strike the sealing plate 202 outside the rubber gasket 201 until the rubber gasket 201 and the pressing plate 203 enter the inside of the pipe 1. At this time, the worker turns the bolt member 204 with a wrench, causing the sealing plate 202 and the pressing plate 203 to move centrally, and while moving, squeezing the rubber gasket 201, causing the rubber gasket 201 to bulge outwards and squeeze and fix to the inner wall of the pipe 1, completing the installation; wherein, positioning strips 2022 and positioning grooves 2023 are respectively arranged at the end parts of the sealing plate 202. Two adjacent sealing plates 202 are initially spliced through the positioning strips 2022 and the positioning grooves 2023. A clamping member 2024 is arranged at the bottom of the positioning strip 2022, and a clamping groove 2025 is arranged inside the positioning groove 2023. As the worker squeezes the three rubber gaskets 201 forcefully and centrally, causing the rubber gaskets 201 to squeeze and fit together, the clamping member 2024 and the clamping groove 2025 will be clamped and connected to each other, thereby maintaining the initial stability after the rubber gaskets 201 are squeezed together.

[0042] Referring to Figure 3 、 Figures 5 to 8, in a preferred embodiment, the fixing mechanism 3 further includes a plurality of plugging pieces 302 evenly inserted inside the soft film kit 301. The length of the plugging piece 302 is greater than that of the soft film kit 301, and the end of the plugging piece 302 penetrates through the side of the soft film kit 301. Flanging 303 is provided on the inner walls at both ends of each soft film kit 301, and adjacent two soft film kits 301 are mutually squeezed and engaged through the flanging 303.

[0043] The worker first adjusts the size of the soft film kit 301 according to the size of the cable 4. Taking the cable 4 with a cross-sectional area of 6 square millimeters and a diameter of 276 millimeters as an example; at this time, the worker pulls out a plurality of plugging pieces 302 within the 276-millimeter interval from the inside of the soft film kit 301, causing the part of the soft film kit 301 within the 276-millimeter interval to be in a hollow state. Then, the worker holds three rubber pads 201 by hand and sequentially passes the three cables 4 inside the pipe 1 through the circular structure formed by the three rubber pads 201. At this time, each cable 4 will be separately distributed inside the ring formed by splicing two soft film kits 301. Then, the worker squeezes the three rubber pads 201 forcefully and centrally, causing the rubber pads 201 to squeeze and fit together. When the rubber pads 201 are squeezed, they will also squeeze the soft film kit 301, thereby causing the hollow part of the soft film kit 301 to fold at this time. The hollow part will fold according to the shape of the flanging 303, so as to tightly squeeze the outside of the cable 4 and form a squeezing and fixing on the cable 4. The specific state is as Figure 11 shown.

[0044] Among them, it should be supplemented and explained that: a pulling groove 304 is provided at the end of each plugging piece 302, and the pulling groove 304 is exposed outside the soft film kit 301, which is convenient for the worker to hold the pulling groove 304 to pull the plugging piece 302.

[0045] Refer to Figures 1 to 4 、 Figures 9 to 10 , in a preferred embodiment, an outer arc portion 2011 is provided on the outer side of the rubber pad 201, and the outer arc portion 2011 is in extrusion contact with the inner wall of the pipe 1. An outer flat portion 2012 is provided at the end of the rubber pad 201, and adjacent two rubber pads 201 are mutually squeezed and spliced through the outer flat portion 2012. Inner arc portions 2013 are symmetrically provided on both sides inside the rubber pad 201, and the soft film kit 301 is fixedly installed on the side of the inner arc portion 2013. An inner flat portion 2014 is further provided in the middle of the rubber pad 201, and a plurality of inner flat portions 2014 are mutually squeezed and in contact to maintain the stability after splicing of the plurality of rubber pads 201;

[0046] The bolt member 204 includes two first - type bolt rods 2041 symmetrically distributed on the outer side of the sealing plate 202 and a second - type bolt rod 2042 distributed in the middle of the sealing plate 202. A number of the first - type bolt rods 2041 and the second - type bolt rod 2042 are symmetrically distributed in a triangle. When the first - type bolt rod 2041 is turned, it will drive the outer arc part 2011 and the outer flat part 2012 to expand and extrude outward, and when the second - type bolt rod 2042 is turned, it will drive the inner arc part 2013 and the inner flat part 2014 to expand and extrude outward.

[0047] The worker aligns a number of the assembled rubber pads 201 at the nozzle of the pipeline 1 and with the help of a hammer, strikes the sealing plate 202 outside the rubber pad 201 until the rubber pad 201 and the pressing plate 203 enter the inside of the pipeline 1;

[0048] At this time, the worker turns the first - type bolt rod 2041 with a wrench. The rubber pads 201 at the positions of the outer arc part 2011 and the outer flat part 2012 will expand and extrude. The outer arc part 2011 will extrude against the inner wall of the pipeline 1, forming the relative fixation between the sealing mechanism 2 and the pipeline 1; and the rubber pads 201 at the adjacent and fitting outer flat part 2012 positions will extrude against each other, forming the relative fixation between a number of the rubber pads 201;

[0049] At this time, the worker turns the second - type bolt rod 2042 with a wrench. The rubber pads 201 at the positions of the inner arc part 2013 and the inner flat part 2014 will expand and extrude, and the rubber pad 201 at the position of the inner arc part 2013 will extrude the soft - film kit 301, causing the hollow part of the soft - film kit 301 to fold, and thus tightly extruding against the outer side of the cable 4, forming the relative fixation to the cable 4; and the adjacent and fitting inner flat part 2014 will extrude against each other, further forming the relative fixation of a number of the rubber pads 201.

[0050] Among them, it should be supplemented and explained that: a clearance groove 2021 is provided inside each sealing plate 202. The clearance groove 2021 divides the sealing plate 202 into several intervals, so that the turned first - type bolt rod 2041 and the second - type bolt rod 2042 do not interfere with each other.

[0051] Furthermore, it is supplemented and explained that: arc - shaped grooves 2026 are symmetrically arranged on the inner side of the sealing plate 202. The arc - shaped grooves 2026 and the inner arc part 2013 are symmetrically distributed in the vertical direction, and the inner - circle diameter of the arc - shaped groove 2026 is larger than the inner - circle diameter of the inner arc part 2013, providing space for the installation of the cable 4.

[0052] Working principle: When in use, the worker first adjusts the size of the soft sheet kit 301 according to the size of the cable 4. Taking the cable 4 with a cross-sectional area of 6 square millimeters and a diameter of 276 millimeters as an example; at this time, the worker pulls out several plug pieces 302 within the 276-millimeter interval from the inside of the soft sheet kit 301, causing the part of the soft sheet kit 301 within the 276-millimeter interval to be in a hollow state. Then the worker holds three rubber pads 201 and passes the three cables 4 inside the pipe 1 through the circular structure formed by the three rubber pads 201 in sequence. At this time, each cable 4 will be separately distributed inside the ring formed by splicing two soft sheet kits 301. Then the worker aligns the positioning strips 2022 and the positioning grooves 2023 at the ends of several sealing plates 202 one by one, and presses the three rubber pads 201 forcefully to the center, causing the rubber pads 201 to be squeezed and adhered to each other. While the rubber pads 201 are being squeezed, they will also squeeze the soft sheet kit 301, so that the hollow part of the soft sheet kit 301 undergoes a folding deformation, and the hollow part will fold according to the shape of the folding edge 303, thus tightly squeezing the outside of the cable 4 to form a squeezing and fixing of the cable 4. The specific state is as Figure 11 shown;

[0053] After that, the worker aligns several assembled rubber pads 201 at the pipe orifice of the pipe 1 and uses a hammer to strike the sealing plate 202 outside the rubber pad 201 until the rubber pad 201 and the pressing plate 203 enter the inside of the pipe 1. At this time, the worker turns the bolt member 204 with a wrench, causing the sealing plate 202 and the pressing plate 203 to move to the center. While moving, they squeeze the rubber pad 201, causing the rubber pad 201 to bulge outwards and be squeezed and fixed on the inner wall of the pipe 1, completing the installation;

[0054] When the worker turns the bolt member 204, the deformation direction and sequence of the rubber pad 201 of the plugging device are as follows:

[0055] First, the worker turns a type of bolt rod 2041. At this time, the outward expansion amplitude of the rubber pad 201 at the outer arc part 2011 and the outer flat part 2012 increases. The rubber pad 201 at the outer arc part 2011 will squeeze the inner wall of the pipe 1 to form a relative fixation between the plugging mechanism 2 and the pipe 1; when the rubber pads 201 at the adjacent and adhered outer flat parts 2012 expand, they will squeeze each other to form a relative squeezing and fixation between several rubber pads 201, thereby effectively improving the tightness between the plugging mechanism 2 and the pipe 1;

[0056] Then the worker turns the second-class bolt rod 2042, and the outer expansion amplitude of the rubber pad 201 at the inner arc part 2013 and the inner flat part 2014 increases. At this time, the inner arc part 2013 squeezes the soft film kit 301, resulting in the folding of the hollow part of the soft film kit 301, so as to tightly squeeze the outside of the cable 4 and relatively fix the cable 4; and the rubber pads 201 at the adjacent and fitting inner flat part 2014 will expand and squeeze each other, thereby further improving the mutual stability of several rubber pads 201.

[0057] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A two-way plugging device for cable ducts, comprising a duct (1), characterized in that, A plugging mechanism (2) is placed at the end of the pipeline (1), and a cable (4) passes through the inside of the plugging mechanism (2). The plugging mechanism (2) includes a number of rubber pads (201) placed inside the pipeline (1). The rubber pads (201) are circularly distributed around the center. One end of a number of the rubber pads (201) is fixedly installed with a sealing plate (202), and the other end of a number of the rubber pads (201) is fixedly installed with a pressing plate (203). The sealing plate (202) and the pressing plate (203) have the same structure; A fixing mechanism (3) for clamping the cable (4) is arranged inside the plugging mechanism (2). The fixing mechanism (3) includes soft sheet kits (301) fixedly installed on both sides of each rubber pad (201). Two adjacent soft sheet kits (301) are in extrusion contact and assembled into an annular structure. The cable (4) passes through between the two assembled soft sheet kits (301). The fixing mechanism (3) further includes a number of plugging sheets (302) evenly inserted into the soft sheet kits (301). The length of the plugging sheet (302) is greater than that of the soft sheet kit (301), and the end of the plugging sheet (302) penetrates out from the side of the soft sheet kit (301). Flanging (303) is arranged on the inner walls at both ends of each soft sheet kit (301). Two adjacent soft sheet kits (301) are mutually extrusion-locked through the flanging (303); The fixing mechanism (3) is adaptively sleeved on the outside of the cable (4) according to the size of the cable (4), and then the assembled plugging mechanism (2) is inserted into the inside of the pipeline (1) to complete the plugging of the pipeline (1).

2. The two-way plugging device for cable ducts according to claim 1, characterized in that, The pressing plate (203) is distributed inside the pipeline (1). A number of evenly distributed bolt parts (204) are installed inside the sealing plate (202). The bolt parts (204) penetrate out from the inside of the rubber pad (201) and are threadedly connected with the pressing plate (203). The sealing plate (202) is pressed and fitted on the outside of the end of the pipeline (1), and the outer diameter of the sealing plate (202) is greater than the inner wall diameter of the pipeline (1).

3. The two-way plugging device for cable ducts according to claim 2, wherein, An outer arc part (2011) is arranged on the outside of the rubber pad (201). The outer arc part (2011) is in extrusion contact with the inner wall of the pipeline (1). An outer flat part (2012) is arranged at the end of the rubber pad (201). Two adjacent rubber pads (201) are mutually extrusion-spliced through the outer flat part (2012). Inner arc parts (2013) are symmetrically arranged on both sides inside the rubber pad (201). The soft sheet kits (301) are fixedly installed on the side of the inner arc part (2013). An inner flat part (2014) is further arranged in the middle of the rubber pad (201). A number of the inner flat parts (2014) are in extrusion contact with each other to maintain the stability of the spliced rubber pads (201).

4. The two-way plugging device for cable ducts according to claim 3, wherein, The bolt member (204) includes two first bolt rods (2041) symmetrically distributed on the outer side of the sealing plate (202) and a second bolt rod (2042) distributed in the middle of the sealing plate (202). A plurality of the first bolt rods (2041) and the second bolt rod (2042) are symmetrically distributed in a triangle. The screwed first bolt rods (2041) will drive the outer arc portion (2011) and the outer flat portion (2012) to expand and extrude, and the screwed second bolt rod (2042) will drive the inner arc portion (2013) and the inner flat portion (2014) to expand and extrude.

5. The two-way plugging device for cable ducts according to claim 4, characterized in that A clearance groove (2021) is formed inside each sealing plate (202). The clearance groove (2021) divides the sealing plate (202) into several intervals, so that the screwed first bolt rods (2041) and the second bolt rod (2042) do not interfere with each other.

6. The two-way plugging device for cable ducts according to claim 1, wherein Positioning strips (2022) and positioning grooves (2023) are respectively arranged at the ends of the sealing plate (202). Two adjacent sealing plates (202) are spliced with each other through the positioning strips (2022) and the positioning grooves (2023).

7. The two-way plugging device for cable ducts according to claim 6, characterized in that, A clamping member (2024) is arranged at the bottom of the positioning strip (2022), and a clamping groove (2025) is arranged inside the positioning groove (2023). The clamping member (2024) and the clamping groove (2025) are clamped and connected.

8. The two-way cable duct plugging device according to claim 3, characterized in that, Arc-shaped grooves (2026) are symmetrically arranged on the inner side of the sealing plate (202). The arc-shaped grooves (2026) and the inner arc portion (2013) are symmetrically distributed in the vertical direction, and the inner circle diameter of the arc-shaped groove (2026) is larger than the inner circle diameter of the inner arc portion (2013).

9. The two-way cable duct plugging device according to claim 1, characterized in that, A pulling groove (304) is arranged at the end of each plug piece (302). The pulling groove (304) is exposed outside the soft sheet kit (301).

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