A flexible rubber sealing device for cable ducts

Abstract

The application discloses a cable conduit flexible rubber plugging device and belongs to the technical field of cable conduit plugging equipment. The cable conduit and a plugging hole are pre-fixed through an installation device, and the installation device is used for assisting in pushing a plugging device into the plugging hole and completing final locking. The installation device is accurate in positioning, and it is not necessary to hold the cable conduit for installing the plugging hole. The plugging device can improve the installation efficiency of the plugging cylinder, and compared with manual installation, the plugging device does not need more people to hold the cable conduit and carry installation tools, thereby saving time and effort.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of cable duct plugging equipment, and particularly relates to a flexible rubber plugging device for cable ducts. BACKGROUND

[0002] With the rapid development of China's economy, the urban infrastructure is gradually improved, and the service life and maintenance of underground cable pipelines are gradually valued. The plugging quality of cable ducts has gradually become the top priority. When the cable ducts pass through the wall surface, a hole larger than the cable duct needs to be arranged on the wall surface to facilitate the insertion of the cable duct. After the cable duct is inserted, the cable duct and the hole in the wall surface need to be plugged to avoid water leakage and insect damage. When plugging the hole in the wall surface, the plugging part is generally directly used for plugging. Since the self-weight of the cable duct is large, when the cable duct passes through the hole in the wall surface and the plugging part is installed, the cable duct needs to be manually lifted and fixed, and then the plugging part is installed, and finally fixed. When supporting the cable duct, the duct is difficult to keep in the center of the hole in the wall surface, which is not conducive to the pre-installation of the plugging part. After the plugging part is installed, it also needs to be locked and fixed, and tools need to be carried, and fixed multiple times. Therefore, the manual installation has poor precision, low efficiency, and is time-consuming and laborious. SUMMARY

[0003] Therefore, the present application aims to provide a flexible rubber plugging device for cable ducts to solve the problems of unstable positioning and difficult locking of the plugging part when the cable duct is perforated.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0005] The present application comprises an installation device and a plugging cylinder. The installation device comprises an outer cylinder shell, which is formed by folding two half shells that are hingedly connected to each other. Three pipe clamping blocks are coaxially slidably arranged in the outer cylinder shell. A positioning steel ring with an outer diameter equal to the inner diameter of the plugging hole and a positioning plate for abutting against the wall surface are arranged at the front end of the outer cylinder shell. An object hole is arranged on the top side of the outer cylinder shell. A motor is fixedly arranged on the pipe clamping block. A gear is arranged at the output end of the motor. The plugging cylinder comprises a rubber ring, a rear plate, and a front plate. A plurality of threaded connecting columns are fixedly arranged on the rear plate. The front plate and the rear plate are clamped on the front side and the rear side of the rubber ring. The threaded connecting columns pass through the rubber ring and are threadedly connected with a locking piece. The outer side of the locking piece is toothed. The plugging cylinder is placed in the outer cylinder shell from the object hole. The plugging cylinder is located at the moving front end of the pipe clamping block. With the movement of the pipe clamping block, the pipe clamping block pushes the plugging cylinder into the plugging hole. The gear is engaged with the locking piece.

[0006] Further, the pipe clamping block comprises a slide, a locking stud and four rollers, the slide is in the shape of a long strip, a slot is formed in the slide, the roller comprises a wheel body and a rotating shaft, the rotating shaft is rotatably arranged in the slot, a protruding table is arranged at the bottom of the slot, an elastic triangular clamping key is arranged on the protruding table, a ring of one-way triangular teeth is arranged on the rotating shaft, the one-way triangular teeth are engaged with the elastic triangular clamping key, so that the roller rotates in one direction only, a slide beam is arranged at the back of the slide, a slide groove is formed in the side of the outer cylinder shell, the slide beam is slidably arranged in the slide groove, and the locking stud is threadedly connected to the side of the outer cylinder shell and abuts against the back of the slide.

[0007] Further, the outer cylinder shell is fixed with two arc-shaped pieces supporting the bottom side of the plugging cylinder, a top plate is hingedly arranged at the cable storage hole, the top plate covers the cable storage hole, a slide column is slidably arranged on the top plate, a pressing piece pressing the top side of the plugging cylinder is fixed to the bottom end of the slide column, and a spring is arranged between the pressing piece and the top plate.

[0008] Further, the outer cylinder shell is fixed with two arc-shaped pieces supporting the bottom side of the plugging cylinder, a top plate is hingedly arranged at the cable storage hole, the top plate covers the cable storage hole, a slide column is slidably arranged on the top plate, a pressing piece pressing the top side of the plugging cylinder is fixed to the bottom end of the slide column, and a spring is arranged between the pressing piece and the top plate.

[0009] Further, the outer side of the wheel body is wrapped with a rubber layer.

[0010] Further, a rotatable steel ball is arranged in the end of the locking stud

[0011] The beneficial effects of the present application are:

[0012] The present application can improve the installation efficiency of the plugging cylinder, and compared with manual installation, it does not need more people to hold the cable pipe and carry installation tools, which saves time and effort.

[0013] Other advantages, objects and features of the present application will be clarified in the following description, and will be apparent to those skilled in the art to some extent, or can be taught by those skilled in the art from the practice of the present application. The objects and other advantages of the present application can be achieved and obtained by the following description. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to make the objects, technical solutions and beneficial effects of the present application clearer, the present application provides the following drawings for illustration:

[0015] Figure 1 This is an overall schematic diagram of the installer according to an embodiment of the present invention;

[0016] Figure 2 This is a schematic diagram illustrating the use of the sealing device according to an embodiment of the present invention;

[0017] Figure 3 This is a schematic diagram of the internal structure of the installer according to an embodiment of the present invention;

[0018] Figure 4 This is a schematic diagram of the sealing cylinder according to an embodiment of the present invention;

[0019] Figure 5 This is a schematic diagram of the pipe clamping block according to an embodiment of the present invention;

[0020] Figure 6 This is a cross-sectional view of the elastic triangular key in an embodiment of the present invention;

[0021] Figure 7 This is a cross-sectional view of the arc-shaped piece in an embodiment of the present invention;

[0022] Figure 8 This is a schematic diagram of the locking stud structure according to an embodiment of the present invention;

[0023] Figure 9 This is a cross-sectional view of the sealing device of the present invention on a wall surface according to an embodiment of the invention;

[0024] The following markings are used in the attached diagram: 1. Installer; 11. Outer shell; 111. Half shell; 112. Storage hole; 113. Slide groove; 114. Arc-shaped piece; 115. Top plate; 116. Sliding column; 117. Pressure plate; 12. Pipe clamping block; 121. Slide seat; 1211. Groove; 1212. Protrusion; 1213. Elastic triangular key; 1214. Sliding beam; 122. Locking stud; 1221. Steel ball; 123. Roller 1. Wheel; 1231. Wheel body; 1232. Shaft; 1233. One-way triangular tooth; 1234. Rubber layer; 13. Positioning steel ring; 14. Positioning plate; 15. Motor; 151. Gear; 16. Push plate; 161. Half plate; 17. Electric cylinder; 2. Sealing cylinder; 21. Rubber ring; 22. Rear plate; 221. Threaded connecting column; 222. Locking part; 23. Front plate; 3. Wall surface; 31. Sealing hole; 4. Cable duct. Detailed Implementation

[0025] like Figures 1-9 As shown, this invention discloses a flexible rubber sealing device for cable duct 4, including an installer 1 and a sealing cylinder 2, as shown in the reference. Figure 4The blocking cylinder 2 is used to block the gap between the wall surface 3 and the blocking hole 31, and the blocking cylinder 2 comprises a rubber ring 21, a rear plate 22 and a front plate 23. The rubber ring 21 is a ring body made of flexible rubber material, the outer diameter of the rubber ring 21 is slightly smaller than the inner diameter of the blocking hole 31, and the inner diameter of the rubber ring 21 is slightly larger than the outer diameter of the cable conduit 4. When the front plate 23 and the rear plate 22 press the rubber ring 21, the rubber ring 21 can expand and be larger than the cable conduit 4 and the blocking hole 31, so as to achieve the effect of closing and fixing. Figure 1 The installation device 1 is used to install the blocking cylinder 2 into the blocking hole 31 when the cable conduit 4 is in place, and the installation device 1 comprises an outer cylinder shell 11 which is folded by two half shells 111 which are hinged to each other. The two half shells 111 can be provided with a clamping piece for fixed connection. Referring to Figure 3 The outer cylinder shell 11 is provided with three pipe clamping blocks 12 which are coaxially arranged in the outer cylinder shell 11. The three pipe clamping blocks 12 are uniformly arranged in an annular array. Referring to Figure 9 The outer cylinder shell 11 is provided with a positioning steel ring 13 with an outer diameter equal to the inner diameter of the blocking hole 31 and a positioning plate 14 used for abutting against the wall surface 3. During installation, the entire installation device 1 can be positioned at the position of the blocking hole 31 through the positioning plate 14 and the positioning steel ring 13. Referring to Figure 7 The outer cylinder shell 11 is provided with a storage hole 112 which is arranged on the top side of the outer cylinder shell 11. The storage hole 112 is used for falling the blocking cylinder 2 into the installation device 1 from top to bottom, as shown in Figure 3 The pipe clamping blocks 12 are fixedly provided with four motors 15. The three pipe clamping blocks 12 are arranged in an inverted triangular array, and the four motors 15 are arranged on the opposite sides of the upper two pipe clamping blocks 12 and on the two sides of the bottom pipe clamping block 12. The output end of each motor 15 is provided with a gear 151. The rear plate 22 is fixedly provided with a plurality of threaded connecting columns 221. The front plate 23 and the rear plate 22 are clamped on the front and rear sides of the rubber ring 21. The threaded connecting columns 221 pass through the rubber ring 21 and are threadedly connected with locking pieces 222. The outer side of the locking piece 222 is toothed. The threaded connecting columns 221 and the locking pieces 222 are provided with four, and the positions of the four locking pieces 222 are located at the meshing positions of the gears 151 when the three pipe clamping blocks 12 are close to the blocking cylinder 2. The specific distribution is shown in Figure 3 and Figure 4 The blocking cylinder 2 is placed into the outer cylinder shell 11 from the storage hole 112. The blocking cylinder 2 is located at the moving front end of the pipe clamping block 12. With the movement of the pipe clamping block 12, the pipe clamping block 12 pushes the blocking cylinder 2 into the blocking hole 31. The gear 151 is engaged with the locking piece 222.

[0026] In the scheme, the plugging barrel 2 and the mounting device 1 for mounting the plugging barrel 2 are provided, and the two devices are configured in a set, and the plugging barrel 2 can be multiple, which is determined according to the plugging hole 31 to be plugged; when the device is used, first, the two half shells 111 of the mounting device 1 are folded, and the mounting device 1 is fixed on the wall surface 3 in the state that the storage hole 112 of the whole outer barrel shell 11 is upward, at this time, the positioning steel ring 13 is inserted into the plugging hole 31, and the positioning plate 14 is attached to the wall surface 3, then the plugging barrel 2 is placed into the mounting device 1 from the storage hole 112; then the cable conduit 4 is inserted between the three pipe clamping blocks 12 along the rear end of the mounting device 1, and the cable conduit 4 passes through the pipe clamping part, the plugging barrel 2 and the plugging hole 31 respectively, after the length is determined, the three pipe clamping blocks 12 are pushed, so that the three pipe clamping blocks 12 continue to push the plugging barrel 2 into the plugging hole 31, at this time, the gear 151 on the motor 15 is engaged with the locking part 222 on the plugging barrel 2, the motor 15 is started, the locking part 222 is locked by the motor 15, the front plate 23 and the rear plate 22 compress the rubber ring 21, the rubber ring 21 expands and fixes the cable conduit 4 and the plugging hole 31, after the plugging is completed, the two half shells 111 are opened, and the mounting device 1 can be taken down, and the installation of the next plugging hole 31 is continued. Through the mounting device 1, the cable conduit 4 and the plugging hole 31 are pre-fixed, and the plugging device is assisted to be pushed into the plugging hole 31, and the final locking is completed, the mounting device 1 is accurately positioned, and the cable conduit 4 is not needed to be held for the installation of the plugging hole 31, and the installation efficiency of the plugging barrel 2 can be improved by using the plugging device, compared with manual installation, more people are not needed to hold the cable conduit 4 and carry the installation tool, time and labor are saved.

[0027] In the embodiment, the pipe clamping block 12 includes a sliding seat 121, a locking stud 122 and four rollers 123, as shown in Figure 5 and Figure 6As shown, the slide 121 is long strip-shaped, a strip groove 1211 is formed on the slide 121, the roller 123 comprises a wheel body 1231 and a rotating shaft 1232, the rotating shaft 1232 penetrates out from two sides of the wheel body 1231, the rotating shaft 1232 is rotationally arranged in the strip groove 1211, a protruding table 1212 is arranged at the bottom of the strip groove 1211, an elastic triangular clamping key 1213 is arranged on the protruding table 1212, a ring of one-way triangular teeth 1233 is arranged on the rotating shaft 1232, the one-way triangular teeth 1233 are engaged with the elastic triangular clamping key 1213, so that the roller 123 can only rotate in one direction when rotating, the one-way triangular teeth 1233 can only compress the elastic triangular clamping key 1213 from one side, so that the elastic triangular clamping key 1213 moves downward and gives way to the one-way triangular teeth 1233, thereby completing the rotation of the roller 123, the reverse rotation of the roller 123 is the insertion direction of the cable pipe 4, a slide beam 1214 is arranged at the back of the slide 121, a slide groove 113 is formed on the side of the outer cylinder shell 11, the slide beam 1214 is slidably arranged in the slide groove 113, the slide beam 1214 and the slide groove 113 can limit the moving direction of the entire pipe clamping block 12, the locking stud 122 is threadedly connected to the side of the outer cylinder shell 11, the locking stud 122 abuts against the back of the slide 121, and rotating the locking stud 122 can slightly adjust the clamping tightness of the pipe clamping block 12, so that it is adapted to the slight thickness change of the cable pipe 4, and is used for clamping the cable pipe 4 after the cable pipe 4 is inserted between the pipe clamping blocks 12, thereby avoiding the recovery of the cable pipe 4; in this structure, the one-way rotating roller 123 is also used for avoiding the recovery of the cable pipe 4, and can assist the advancement of the cable pipe 4.

[0028] In this embodiment, as shown in the drawings, Figure 7 two arc-shaped pieces 114 supporting the bottom side of the plugging cylinder 2 are fixed to the outer cylinder shell 11, the two arc-shaped pieces 114 are located at the two sides of the bottommost pipe clamping block 12 after the plugging cylinder 2 is in place, and can give way to the pipe clamping block 12 while supporting the plugging cylinder 2, a top plate 115 is hingedly arranged at the storage hole 112, the top plate 115 covers the storage hole 112, a slide column 116 is slidably arranged on the top plate 115, a pressing piece 117 pressing the top side of the plugging cylinder 2 is fixed to the bottom end of the slide column 116, and a spring is arranged between the pressing piece 117 and the top plate 115; in this structure, the plugging cylinder 2 can be pre-fixed in front of the three pipe clamping blocks 12 through the arc-shaped pieces 114 and the pressing piece 117, thereby avoiding the deviation of the plugging cylinder 2, and the plugging cylinder 2 can also be fixed in position when the gear 151 and the locking piece 222 are engaged.

[0029] In this embodiment, as shown in the drawings, Figure 3 and Figure 9As shown, it also includes a push plate 16, which has a hole for the cable conduit 4 to pass through. The push plate 16 is slidably disposed at the rear end of the outer shell 11 and abuts against the rear end of the pipe clamping block 12. The push plate 16 is divided into two half plates 161, which are slidably disposed inside the half shell 111. An electric cylinder 17 is fixed to the outside of the half shell 111. The electric cylinder 17 drives the push plate 16 to move inside the outer shell 11. The two push plates 16 are also connected by a pin structure after the half shell 111 is closed. Under the push of the electric cylinder 17, the three pipe clamping blocks 12 can be pushed forward synchronously.

[0030] In this implementation, refer to Figure 6 The outer side of the wheel body 1231 is wrapped with a rubber layer 1234. The rubber layer 1234 is used to increase the friction between the wheel body 1231 and the cable pipe 4, so as to prevent the cable pipe 4 from being retracted.

[0031] In this implementation, refer to Figure 8 The locking stud 122 has a rotatable steel ball 1221 inside its end. The steel ball 1221 is used to improve the smoothness between the locking stud 122 and the pipe clamping block 12, so that the pipe clamping block 12 can move smoothly when the locking stud 122 is pressed against the pipe clamping block 12.

[0032] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of the present invention.

Claims

1. A flexible rubber sealing device for cable ducts, characterized in that: The device includes an installer (1) and a sealing cylinder (2). The installer (1) includes an outer shell (11), which is formed by two hinged half-shells (111). Three pipe clamping blocks (12) are slidably arranged in the same direction inside the outer shell (11). The front end of the outer shell (11) is provided with a positioning steel ring (13) with an outer diameter equal to the inner diameter of the sealing hole and a positioning plate (14) for adhering to the wall. The top side of the outer shell (11) has a placement hole (112). A motor (15) is fixed on the pipe clamping block (12). The output end of the motor (15) is provided with a gear (151). The sealing cylinder (2) includes a rubber ring (21), a rear plate (22), and a front plate (23). 3) The rear plate (22) is fixed with several threaded connecting posts (221). The front plate (23) and the rear plate (22) are clamped on the front and rear sides of the rubber ring (21). The threaded connecting posts (221) pass through the rubber ring (21) and are threadedly connected to the locking member (222). The locking member (222) has teeth on the outside. The sealing cylinder (2) is inserted into the outer shell (11) through the placement hole (112). The sealing cylinder (2) is located at the front end of the moving pipe clamping block (12). As the pipe clamping block (12) moves, the pipe clamping block (12) pushes the sealing cylinder (2) into the sealing hole. The gear (151) meshes with the locking member (222).

2. The flexible rubber plugging device for cable ducts according to claim 1, characterized in that: The pipe clamping block (12) includes a slide (121), a locking stud (122), and four rollers (123). The slide (121) is elongated and has a groove (1211) on it. Each roller (123) includes a wheel body (1231) and a rotating shaft (1232). The rotating shaft (1232) is rotatably mounted in the groove (1211). The bottom of the groove (1211) has a protrusion (1212), and the protrusion (1212) has a spring-loaded triangular locking key (1213). The rotating shaft (1232) is mounted on the rollers. 232) is provided with a ring of one-way triangular teeth (1233), which mesh with the elastic triangular key (1213) so that the roller (123) rotates only in one direction. The slide block (121) is provided with a slide beam (1214) on the back. The outer cylinder shell (11) is provided with a slide groove (113) on the side. The slide beam (1214) slides in the slide groove (113). The locking stud (122) is threaded to the side of the outer cylinder shell (11) and abuts against the back of the slide block (121).

3. The flexible rubber plugging device for cable ducts according to claim 1, characterized in that: The outer shell (11) is fixed with two arc-shaped pieces (114) supporting the bottom side of the sealing cylinder (2). A top plate (115) is also hinged at the storage hole (112). The top plate (115) covers the storage hole (112). A sliding column (116) is slidably provided on the top plate (115). A pressure plate (117) is fixed at the bottom end of the sliding column (116) to press the top side of the sealing cylinder (2). A spring is provided between the pressure plate (117) and the top plate (115).

4. The flexible rubber plugging device for cable ducts according to claim 1, characterized in that: It also includes a push plate (16), which has a hole for the cable pipe to pass through. The push plate (16) is slidably disposed at the rear end of the outer shell (11). The push plate (16) abuts against the rear end of the pipe clamping block (12). The push plate (16) is divided into two half plates (161). The two half plates (161) are connected by a pin. The two half plates (161) are slidably disposed inside the half shell (111). An electric cylinder (17) is fixed on the outside of the half shell (111). The electric cylinder (17) drives the push plate (16) to move inside the outer shell (11).

5. The flexible rubber plugging device for cable ducts according to claim 2, characterized in that: The outer side of the wheel body (1231) is covered with a rubber layer (1234).

6. The flexible rubber plugging device for cable ducts according to claim 2, characterized in that: The locking stud (122) has a rotatable steel ball (1221) inside its end.

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