Bidirectional plugging device for cable conduit

Abstract

The invention discloses a bidirectional plugging device for a cable pipeline, and relates to the technical field of pipeline equipment, the bidirectional plugging device comprises a pipeline, the end part of the pipeline is plugged with a plugging mechanism, and a cable penetrates out from the interior of the plugging mechanism; the plugging mechanism is internally provided with a fixing mechanism for clamping a cable, the fixing mechanism comprises flexible sheet suites which are fixedly mounted on the two sides of each rubber mat, every two adjacent flexible sheet suites are in extrusion contact and are spliced to form an annular structure, and the cable penetrates through the space between the two spliced flexible sheet suites; according to the size of the cable, the fixing mechanism is adaptively connected to the outer side of the cable in a sleeving mode, then the spliced plugging mechanism is plugged into the pipeline, and plugging of the pipeline is completed. The two-way plugging device for the cable pipeline has the advantages of being convenient to operate, high in stability and high in 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. It is required that the product has 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, is applicable to various auxiliary components of power equipment, plastic products, and pipeline plugging products, maintains a good operating environment for cable pipelines, and 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 with different diameters, a sealing structure composed of several layers of rubber rings is usually arranged 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, the rubber rings will be misaligned and de-bonded from each other, 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 turns the bolts, the bolts close to each other will be misaligned horizontally. At this time, the worker needs to turn 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] Inside the plugging mechanism, a fixing mechanism for clamping the cable is provided. The fixing mechanism includes soft sheet sets fixedly installed on both sides of each rubber pad. Two adjacent soft sheet sets are in extrusion contact and assembled into an annular structure, and the cable passes through between the two assembled soft sheet sets.

[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 inside of the pipeline to complete the plugging of the pipeline.

[0009] By providing a 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 from the inside 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 providing a number of groups of rubber pad structures that are circularly distributed and mutually fitted, 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 pressing 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 pieces uniformly inserted into the soft sheet sets. The length of the plugging pieces is greater than that of the soft sheet sets, and the ends of the plugging pieces penetrate out from the sides of the soft sheet sets. Flanging is provided on the inner walls at both ends of each soft sheet set, and two adjacent soft sheet sets are mutually extruded and clamped through the flanging.

[0013] By providing a soft sheet set structure on the side of the rubber pad, the soft sheet sets are mutually extruded and fitted to form an annular structure to preliminarily fix the passing cable. At the same time, a number of uniformly distributed plugging piece structures are inserted into the soft sheet sets. By extracting the corresponding number of plugging pieces according to the diameter of the cable, and cooperating with the flanging structures at both ends of the soft sheet sets, the soft sheet sets are caused to fold and contract by extrusion, so as to firmly clamp on the outer side of the cable and maintain 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-type bolt rods symmetrically distributed on the outer side of the sealing plate and a second-type bolt rod distributed in the middle of the sealing plate. A plurality of the first-type bolt rods and the second-type bolt rod are symmetrically distributed in a triangle. The rotated first-type bolt rod will drive the outer arc portion and the outer flat portion to expand and press outward, and the rotated second-type bolt rod will drive the inner arc portion and the inner flat portion to expand and press outward.

[0015] By specifically defining the shape of the rubber pad and using the first-type bolt rod and the second-type bolt rod provided to press on different parts of the rubber pad respectively, it causes the outer arc portion to be pressed against the inner wall of the pipeline, the outer flat portions to press against each other, the inner arc portion to be pressed against the soft film kit, and the inner flat portions to press against each other, thereby maintaining the overall stability and greatly improving 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 rotated first-type bolt rod and the second-type 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 rotates the bolt member, there is no need to perform small-scale operations multiple times, thereby 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 specifically defining the shape of the rubber pad structure of the traditional seal and using the first-type bolt rod and the second-type bolt rod at different positions to press on different parts of the rubber pad respectively, it causes the outer arc portion to be pressed against the inner wall of the pipeline, the outer flat portions to press against each other, the inner arc portion to be pressed against the soft film kit, and the inner flat portions to press against each other, resulting in the rubber pad being pressed and fixed to the pipeline, the rubber pads being pressed and fixed to each other, and the rubber pad being pressed and fixed to the cable, thereby maintaining the overall stability and greatly improving the stability of the traditional equipment after installation.

[0020] Second: By providing 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 initially fixed. At the same time, several evenly distributed plug sheet structures are inserted inside the soft sheet kits. By pulling out 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 kits, the soft sheet kits are 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 kits 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 gap groove is further provided inside the sealing plate. The gap groove divides the sealing plate into several intervals, so that when the operator twists the bolt parts, the bolt parts will not interfere with each other, thus ensuring that there is no need to twist 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 Enlarged view of the structure at 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 implementation mode

[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] Referring to Figures 1 to 11 , a two-way plugging device for cable pipelines, includes a pipeline 1. A plugging mechanism 2 is placed at the end of the pipeline 1. A cable 4 passes through the inside of the plugging mechanism 2. The plugging mechanism 2 includes a plurality of rubber pads 201 placed inside the pipeline 1. 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. 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 pipeline 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 pipeline 1 and uses a hammer to strike the outside of the plugging mechanism 2 until the plugging mechanism 2 enters the inside of the pipeline 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 pipeline 1, completing the installation.

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

[0041] First, the worker adjusts the size of the fixing mechanism 3 according to the size of the cable 4, then holds the three rubber gaskets 201 by hand, and sequentially passes the three cables 4 located inside the pipeline 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. Then, 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 pipeline 1 and uses a hammer to strike the sealing plate 202 outside the rubber gaskets 201 until the rubber gaskets 201 and the pressing plates 203 enter the inside of the pipeline 1. At this time, the worker turns the bolt members 204 with a wrench, causing the sealing plates 202 and the pressing plates 203 to move centrally. During the movement, they squeeze the rubber gaskets 201, causing the rubber gaskets 201 to bulge outwards and squeeze and fix to the inner wall of the pipeline 1, completing the installation; wherein, positioning strips 2022 and positioning grooves 2023 are respectively arranged at the end parts of the sealing plates 202. 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, thus maintaining the initial stability after the rubber gaskets 201 are squeezed together.

[0042] Refer to Figure 3 、 Figures 5 to 8, in a preferred embodiment, the fixing mechanism 3 further includes a plurality of plug pieces 302 evenly inserted inside the soft film kit 301. The length of the plug piece 302 is greater than that of the soft film kit 301, and the end of the plug piece 302 penetrates out from 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] First, the worker adjusts the size of the soft film kit 301 according to the size of the cable 4. Taking the cable 4 with a size of 6 square millimeters and a diameter of 276 millimeters as an example; at this time, the worker pulls out a plurality of plug pieces 302 within the 276 - millimeter range from the inside of the soft film kit 301, causing the part of the soft film kit 301 within the 276 - millimeter range to be in a hollow state. Then, the worker holds three rubber pads 201 and sequentially passes the three cables 4 located inside the pipeline 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 at this time to fold. 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 effect 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 plug 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 plug piece 302.

[0045] Referring to Figures 1 to 4 、 Figures 9 to 10 , in a preferred embodiment, an outer arc part 2011 is provided on the outer side of the rubber pad 201, and the outer arc part 2011 is in extrusion contact with the inner wall of the pipeline 1. An outer flat part 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 part 2012. Inner arc parts 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 part 2013. An inner flat part 2014 is further provided in the middle of the rubber pad 201, and a plurality of inner flat parts 2014 are mutually squeezed and contacted 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 first - type bolt rods 2041 and second - type bolt rods 2042 are symmetrically distributed in a triangular shape. 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, 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.

[0047] The worker aligns a number of assembled rubber pads 201 at the pipe orifice of the pipe 1 and, with the help of a hammer, uses the hammer to strike the sealing plate 202 on the outer side of the rubber pad 201 until the rubber pad 201 and the pressing plate 203 enter the inside of the pipe 1;

[0048] At this time, the worker turns the first - type bolt rod 2041 with a wrench. The rubber pad 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 pipe 1, forming the relative fixation between the sealing mechanism 2 and the pipe 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 rubber pads 201;

[0049] At this time, the worker turns the second - type bolt rod 2042 with a wrench. The rubber pad 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 inner arc part 2013 position will extrude the soft - film kit 301, causing the hollow part of the soft - film kit 301 to fold, so as to tightly extrude 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 to a number of 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 second - type bolt rod 2042 do not interfere with each other.

[0051] Furthermore, it is supplemented and explained that: arc - surface grooves 2026 are symmetrically arranged on the inner side of the sealing plate 202. The arc - surface grooves 2026 and the inner arc part 2013 are symmetrically distributed in the vertical direction, and the inner - circle diameter of the arc - surface 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 size 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 range from the inside of the soft sheet kit 301, causing the part of the soft sheet kit 301 within the 276-millimeter range 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 positioning grooves 2023 at the ends of several sealing plates 202 one by one, and forcefully squeezes the three rubber pads 201 in the middle, causing the rubber pads 201 to squeeze and fit with 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. The hollow part will fold according to the shape of the folding edge 303, so as to tightly squeeze the outside of the cable 4 and form a squeezing and fixing of the cable 4. The specific state is as Figure 11 shown;

[0053] After that, the worker aligns several spliced 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 part 204 with a wrench, causing the sealing plate 202 and the pressing plate 203 to move centrally. 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 part 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, forming a relative fixation between the plugging mechanism 2 and the pipe 1; when the rubber pads 201 at the adjacent and fitting outer flat parts 2012 expand, they will squeeze each other, forming 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 - type bolt rod 2042, and the expansion amplitude of the rubber pad 201 located 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, causing the folded parts of the hollow part of the soft film kit 301 to fold, so as to tightly squeeze the outer side of the cable 4, forming a relative fixation for the cable 4; and the rubber pads 201 at the adjacent and attached inner flat part 2014 will expand and squeeze each other, further improving the mutual stability among several rubber pads 201.

[0057] The above - mentioned is only the preferred specific implementation mode 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 and inventive concept of the present invention, making equivalent replacements or changes should be covered within the protection scope of the present invention.

Claims

1. A bidirectional plugging device for a cable conduit, comprising a conduit (1), characterized in that: A plugging mechanism (2) is inserted at the end of the pipe (1), and the cable (4) passes through the inside of the plugging mechanism (2). The plugging mechanism (2) comprises a plurality of rubber pads (201) inserted inside the pipe (1), and the rubber pads (201) are arranged in a circular shape around the center of the circle. A sealing plate (202) is fixedly mounted on one end of the plurality of rubber pads (201), and a pressing plate (203) is fixedly mounted on the other end of the plurality of rubber pads (201). 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 blocking mechanism (2), the fixing mechanism (3) comprising a soft film set (301) fixedly mounted on both sides of each rubber pad (201), two adjacent soft film sets (301) being pressed and contacted and assembled to form a ring structure, and the cable (4) passes between the two assembled soft film sets (301); The fixing mechanism (3) is adapted to be connected to the outside of the cable (4) according to the size of the cable (4), and the assembled blocking mechanism (2) is then inserted into the interior of the pipe (1) to complete the blocking of the pipe (1).

2. A bidirectional plugging device for cable duct according to claim 1, characterized in that: The pressure plate (203) is distributed inside the pipe (1), and a plurality of evenly distributed bolt members (204) are installed inside the sealing plate (202). The bolt members (204) penetrate through the inside of the rubber pad (201) and are threadedly connected to the pressure plate (203). The sealing plate (202) is pressed and fitted to the outer side 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).

3. A bidirectional plugging device for cable duct according to claim 1, characterized in that: The fixing mechanism (3) further comprises a plurality of plugs (302) uniformly inserted into the interior of the film set (301); the length of the plugs (302) is greater than that of the film set (301); and the ends of the plugs (302) extend through the sides of the film set (301); and the inner walls at both ends of each film set (301) are provided with folded edges (303); and two adjacent film sets (301) are mutually squeezed and engaged via the folded edges (303).

4. A bidirectional plugging device for cable duct according to claim 2, characterized in that: The outer side of the rubber pad (201) is provided with an outer arc portion (2011), the outer arc portion (2011) is in compression contact with the inner wall of the pipe (1), the end of the rubber pad (201) is provided with an outer flat portion (2012), two adjacent rubber pads (201) are mutually extruded and spliced ​​through the outer flat portions (2012), inner arc portions (2013) are symmetrically provided on both sides of the inside of the rubber pad (201), the film kit (301) is fixedly mounted on the side of the inner arc portion (2013), and the middle of the rubber pad (201) is provided with an inner flat portion (2014), and a plurality of the inner flat portions (2014) are mutually extruded and contacted, so as to maintain the stability of the plurality of rubber pads (201) after splicing.

5. A bidirectional plugging device for cable duct according to claim 4, characterized in that: The bolt member (204) comprises two first-class bolt rods (2041) symmetrically distributed on the outside of the sealing plate (202) and a second-class bolt rod (2042) distributed in the middle of the sealing plate (202), and a plurality of the first-class bolt rods (2041) and the second-class bolt rods (2042) are symmetrically distributed in a triangular shape, and twisting the first-class bolt rod (2041) will drive the outer arc portion (2011) and the outer flat portion (2012) to expand and extrude outwards, while twisting the second-class bolt rod (2042) will drive the inner arc portion (2013) and the inner flat portion (2014) to expand and extrude outwards.

6. A bidirectional plugging device for cable duct according to claim 5, characterized in that: Each of the sealing plates (202) is provided with a gap groove (2021) inside, and the gap groove (2021) divides the sealing plate (202) into a plurality of sections, so that the first type of bolt rod (2041) and the second type of bolt rod (2042) that are being screwed do not interfere with each other.

7. A bidirectional plugging device for cable duct according to claim 1, characterized in that: The ends of the sealing plates (202) are respectively provided with positioning strips (2022) and positioning grooves (2023), and two adjacent sealing plates (202) are spliced ​​with each other via the positioning strips (2022) and the positioning grooves (2023).

8. A bidirectional plugging device for cable duct according to claim 7, characterized in that: A snap-fitting piece (2024) is provided at the bottom of the positioning bar (2022), a snap-fitting groove (2025) is provided inside the positioning groove (2023), and the snap-fitting piece (2024) and the snap-fitting groove (2025) are snap-fitted and connected.

9. A bidirectional plugging device for cable duct according to claim 4, characterized in that: The inner side of the sealing plate (202) is symmetrically provided with an arc surface groove (2026), the arc surface groove (2026) and the inner arc portion (2013) are symmetrically distributed along the vertical direction, and the inner circle diameter of the arc surface groove (2026) is greater than the inner circle diameter of the inner arc portion (2013).

10. A bidirectional plugging device for cable duct according to claim 3, characterized in that: The end of each plug sheet (302) is provided with a drawing groove (304), and the drawing groove (304) is exposed to the outside of the soft film kit (301).

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