A cable duct obturator and method of obturation

Abstract

The present application relates to the technical field of pipeline fittings, and particularly relates to a cable pipeline plugging device and a plugging method. The cable pipeline plugging device comprises a pressing plate, a sleeve, a baffle and cable modules; the pressing plate is installed at a first end of the sleeve, the baffle is installed at a second end of the sleeve, the sleeve has a cylindrical outer contour, and a square module hole is formed in the sleeve; a plurality of cable modules are installed in the module hole, the cable modules have a square cross section, the cable modules are provided with cable holes through which cables pass, and the cable modules are provided with a partition groove which transversely passes through the cable holes and divides the cable modules into two halves. The plugging device solves the problem of poor sealing caused by multiple cables passing through the same reserved hole, and the cable modules can be replaced with each other, and the cable modules are easy to disassemble and assemble.

Description

Technical Field

[0001] This invention relates to the field of pipe fittings technology, and in particular to a cable duct plugging device and plugging method. Background Technology

[0002] The information disclosed in this background section is intended only to enhance understanding of the overall background of the invention and is not necessarily to be construed as an admission or in any way implying that such information constitutes prior art known to those skilled in the art.

[0003] A pipe plug is a sealing device installed inside a cable duct. It is generally made of rubber. When the rubber is stressed, it expands inward and outward, filling the cross-section between the cable duct and the cable, thereby fixing the cable and sealing the duct, eliminating safety hazards caused by water leakage or small animals entering the duct and damaging the cable.

[0004] In practice, it's common to encounter situations where multiple thin cables are passed through a pre-drilled hole. However, cable conduits on walls are generally large in diameter and don't have specially designed small-diameter holes for thinner cables. In such cases, several thin cables are often passed together through a single cable conduit, creating gaps. Traditional pipe sealers are insufficient to achieve a good seal in this situation.

[0005] The utility model patent with publication number CN210041200U discloses a cable duct sealing device, which uses multiple parallel baffles with semi-circular holes on both sides of the baffles. When the parallel baffles are spliced ​​together, multiple wire holes are formed. However, each baffle of this sealing device must be spliced ​​according to its specific position, which makes the assembly difficult and inconvenient for the installation and removal of cables. Summary of the Invention

[0006] To address the shortcomings of existing technologies, the purpose of this invention is to provide a cable duct plug to solve the problem of poor sealing caused by multiple cables passing through the same pre-drilled hole. Moreover, the cable modules can be interchanged and are easy to assemble and disassemble.

[0007] To achieve the above objectives, the embodiments of the present invention provide the following technical solutions:

[0008] A cable duct plugging device includes: a pressure plate, a sleeve, a baffle, and cable modules; the pressure plate is installed at a first end of the sleeve, the baffle is installed at a second end of the sleeve, the outer contour of the sleeve is cylindrical, and the sleeve has a square module hole inside; multiple cable modules are installed in the module hole, the cable modules have a square cross-section, the cable modules have cable holes for cable passage, and the cable modules have a dividing groove that runs through the cable hole and divides the cable module into two halves.

[0009] Preferably, the sidewall of the module hole has a set slope along the axial direction of the sleeve, and the module hole at the first end of the sleeve is smaller than the module hole at the second end; the cable module has four vertical surfaces, of which two adjacent surfaces are inclined surfaces with a set slope, and the other two are vertical surfaces; the baffle is a circular plate structure with a second square hole in the middle, and the second square hole is smaller than the module hole at the second end of the sleeve.

[0010] Preferably, the slope of the module hole sidewall is set to 1°, and the slope of the cable module inclined surface is set to 1°.

[0011] Preferably, two baffles are provided in the second square hole of the baffle, and the two baffles are arranged vertically at the center.

[0012] Preferably, the baffle divides the second square hole of the baffle into four equal-sized areas, the baffle is provided with four opening slots, each of the four opening slots is connected to one of the areas, and the width of the opening slot is greater than or equal to the diameter of the cable to be threaded.

[0013] Preferably, the sleeve is made of rubber, and the cable module is made of rubber.

[0014] Preferably, the pressure plate is provided with a first separation groove, which divides the pressure plate into two halves; the sleeve is provided with a second separation groove, which divides the sleeve into two halves.

[0015] Preferably, the baffle, sleeve, and pressure plate are all provided with through holes and are positioned correspondingly. The screw passes through the through holes of the baffle, sleeve, and pressure plate in sequence, and a nut is installed on the exposed end of the screw.

[0016] Preferably, the screw has a nut with a hexagonal cross-section, and the through hole of the baffle is provided with anti-rotation holes in sequence away from the sleeve, the anti-rotation holes having a hexagonal cross-section.

[0017] This invention also provides a sealing method for the cable duct plug described above, characterized in that the cable is installed in the cable module, the cable module is inserted into the module hole of the sleeve from the first end of the sleeve, the inclined surface of the cable module corresponds to the side wall of the module hole, and the vertical surface of the cable module faces the center of the sleeve.

[0018] One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:

[0019] 1. Because both the module holes and cable modules of this invention are square, and each cable module is independent, it can be installed into the module hole after clamping one cable. The cable modules can be interchanged arbitrarily without needing to be arranged in a specific order. This not only solves the problem of poor sealing caused by multiple cables passing through the same pre-drilled hole, but also simplifies assembly. Furthermore, when the number of cables to be pre-passed through a cable conduit is less than the number of cable holes, the excess cable modules can simply be interchanged with solid modules, making the assembly method flexible and adaptable to various situations.

[0020] 2. By setting the module hole and the slope of the cable module, as well as the cooperation of the second square hole and the cross stop bar, this invention not only avoids the problem of axial movement of the cable module, but also reduces the difficulty of installing and disassembling the cable module.

[0021] Advantages of additional aspects of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

[0022] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0023] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0024] Figure 1 This is an overall schematic diagram of the occluder according to one or more embodiments of the present invention;

[0025] Figure 2 This is a top view of a occluder according to one or more embodiments of the present invention;

[0026] Figure 3 This is a bottom view of the occluder according to one or more embodiments of the present invention;

[0027] Figure 4 yes Figure 2 Sectional view AA (rotated 90° for easier understanding);

[0028] Figure 5 This is a schematic diagram of a pressure plate according to one or more embodiments of the present invention;

[0029] Figure 6 This is a schematic diagram of a sleeve according to one or more embodiments of the present invention;

[0030] Figure 7 This is a schematic diagram of a baffle according to one or more embodiments of the present invention;

[0031] Figure 8This is a schematic diagram of a cable module according to one or more embodiments of the present invention;

[0032] Figure 9 This is a top view of a cable module according to one or more embodiments of the present invention;

[0033] In the diagram: 1. Pressure plate; 11. First square hole; 12. First separation groove; 2. Sleeve; 21. Module hole; 22. Second separation groove; 3. Baffle; 31. Stop block; 32. Anti-rotation hole; 33. Stop bar; 34. Opening groove; 35. Second square hole; 4. Cable module; 41. Cable hole; 42. Separating groove; 43. Inclined surface; 44. Vertical surface; 5. Screw; 6. Nut;

[0034] The distances or dimensions between parts have been exaggerated to show their positions; the diagram is for illustrative purposes only. Detailed Implementation

[0035] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0036] For ease of description, the words "upper" and "lower" appearing in this invention only indicate that they are consistent with the upper and lower directions of the accompanying drawings and do not limit the structure. They are merely for the purpose of facilitating the description of this invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0037] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, "many" or "a plurality of" means two or more.

[0038] Example 1

[0039] like Figures 1-9 As shown, an embodiment of the present invention describes a cable duct plugging device, characterized in that it includes: a pressure plate 1, a sleeve 2, a baffle 3, and cable modules 4; the pressure plate 1 is installed at the first end of the sleeve 2, the baffle 3 is installed at the second end of the sleeve 2, the outer contour of the sleeve 2 is cylindrical, and the sleeve 2 has a square module hole 21 inside; multiple cable modules 4 are installed in the module hole 21, the cable module 4 has a square cross-section, the cable module 4 has a cable hole 41 for passing through the cable, and the cable module 4 has a dividing groove 42 that runs through the cable hole 41 and divides the cable module 4 into two halves.

[0040] Both the sleeve 2 and the cable module 4 are made of rubber; the first end of the sleeve 2 refers to... Figure 1 The upper end of sleeve 2, the second end of sleeve 2 refers to Figure 1 The lower end of the sleeve 2; the module hole 21 of the sleeve 2 can be rectangular or square, and the shape of the cable module 4 can also be rectangular or square, as long as multiple cable modules 4 are combined to fill the cable module 4. Since the cable is circular, the shape of the module hole 21 and the shape of the cable module 4 in this embodiment are both described using a square as an example. This embodiment also provides a solid module, the only difference from the cable module 4 is that the solid module does not have a cable hole 41.

[0041] The baffle 3, sleeve 2, and pressure plate 1 are all provided with through holes and are positioned correspondingly. The screw passes through the through holes of the baffle 3, sleeve 2, and pressure plate 1 in sequence, and a nut 6 is installed on the exposed end of the screw. By tightening the nut 6, the rubber sleeve 2 is squeezed, which in turn squeezes the cable module 4 to achieve a seal in the pipe hole.

[0042] The screw has a nut 6 with a hexagonal cross-section. The through hole of the baffle 3 is provided with anti-rotation holes 32 in sequence away from the sleeve 2. The anti-rotation holes 32 have a hexagonal cross-section.

[0043] Existing plugs have circular inner holes, requiring the baffles 33 to be arranged according to their arcs during installation. Furthermore, the baffles 33 cannot be arbitrarily interchanged, and must be installed sequentially, making assembly difficult and hindering cable disassembly. In contrast, the plug of this invention features a sleeve 2 with an outer circle and an inner square. Multiple square cable modules 4 are installed in the square module holes 21 of the sleeve 2, with each cable module 4 used to install one cable. Since both the module holes 21 and the cable modules 4 are square, and each cable module 4 is independent, it can be installed by clamping one cable at a time into the module hole 21. The cable modules 4 can be arbitrarily interchanged without needing to be arranged in a specific order, solving the problem of poor sealing caused by multiple cables passing through the same pre-drilled hole, and simplifying assembly. Moreover, when the number of cables pre-penetrated in a cable conduit is less than the number of cable holes 41, the excess cable modules 4 can simply be interchanged with solid modules, making the assembly method flexible and adaptable to various situations.

[0044] When using the sealing device of the present invention, the applicant found that, because the sealing device achieves cable installation and pipe sealing by compressing the rubber sleeve 2 and the cable module 4, the gaps between the components are small, making it difficult to install and remove the cable module 4 from the sleeve 2. Furthermore, after a period of use, the cable module 4 exhibits axial movement. The reason for this is that some cables are frequently bumped during use, but the contact area between the sleeve 2 and the pipe is large, making axial movement difficult; while the cable is generally bent at both ends of the cable module 4, making axial movement also difficult; however, the contact between the cable modules 4 and between the cable module 4 and the sleeve 2 is direct and the contact area is small, leading to axial movement of the cable module 4 after a period of use.

[0045] For the two reasons mentioned above, in this embodiment, the sidewall of the module hole 21 has a set slope along the axial direction of the sleeve 2, and the module hole 21 at the first end (i.e., the upper end) of the sleeve 2 is smaller than the module hole 21 at the second end (i.e., the lower end). Figure 4 As shown, the longitudinal section of module hole 21 is a trapezoid with a smaller top and a larger bottom; as Figure 8 , Figure 9 As shown, the cable module 4 has four facades, of which two adjacent surfaces are inclined surfaces 43 with a set slope, and the other two are vertical surfaces 44; Figure 3 , Figure 5 , Figure 7 As shown, the pressure plate 1 has a first square hole 11; the baffle 3 is a circular plate structure with a second square hole 35 in the middle (the second square hole 35 refers to the square hole formed by four baffles 31, not four small square holes), and the second square hole 35 is smaller than the module hole 21 at the second end of the sleeve 2. Two baffles 33 are provided in the second square hole 35 of the baffle 3, and the two baffles 33 are vertically arranged at the center, as shown... Figure 7 As shown, the two baffles 33 are arranged in a cross shape in the second square hole 35. In this embodiment, the set slope of the side wall of the module hole 21 is 1°, and the set slope of the inclined surface 43 of the cable module 4 is 1°.

[0046] In the sealing device of this invention, the module hole 21 of the sleeve 2 is set as a square conical hole with a smaller top and a larger bottom. Simultaneously, two of the vertical surfaces of the cable module 4 are set as inclined surfaces 43. During installation, the inclined surfaces 43 of the cable module 4 are aligned with the sidewalls of the module hole 21. Initially, the gap between the cable module 4 and the sleeve 2 is relatively large, gradually decreasing as installation progresses until it is fully installed. For disassembly, the cable module 4 is easily removed by tapping it from the other end to detach it from the sleeve 2. Furthermore, because the cable module 4 and the sleeve 2 are fitted at an angle, the cable module 4 tends to move towards the baffle 3 after compression. By setting the size of the second square hole 35 to be smaller than the size of the lower module hole 21 of the sleeve 2, and by setting a cross-shaped retainer 33, the cable module 4 is compressed within the sleeve 2. Therefore, this invention, through the setting of the slope of the module hole 21 and the cable module 4, and the cooperation of the second square hole 35 and the cross-shaped retainer 33, avoids the problem of axial movement of the cable module 4 and reduces the difficulty of installing and disassembling the cable module 4.

[0047] Example 2

[0048] The difference between this embodiment and Embodiment 1 is that Embodiment 1 is for the case where the cable has not yet been laid in the cable duct, while Embodiment 2 is for the case where the cable has already been laid in the cable duct.

[0049] In this embodiment, the baffle 33 divides the second square hole 35 of the baffle 3 into four equally sized regions, such as... Figure 7 As shown, the baffle 3 has four opening slots 34, each connecting to one of the four regions. The width of each opening slot 34 is greater than or equal to the diameter of the cable to be threaded. This invention facilitates the entry of pre-laid cables into each region by providing four opening slots 34 that connect to the four regions of the second square hole 35, and by ensuring that the width of each opening slot 34 is greater than the diameter of the cable.

[0050] Further such as Figure 2 , Figure 5 As shown, the pressure plate 1 is provided with a first separation groove 12, which divides the pressure plate 1 into two halves; as Figure 1 , Figure 6 As shown, the sleeve 2 is provided with a second separation groove 22, which divides the sleeve 2 into two halves. By making both the pressure plate 1 and the sleeve 2 separate, it is convenient to seal the cable duct where cables are laid.

[0051] Example 3

[0052] This embodiment provides a method for using the cable duct plug in Embodiment 1. The cable is installed in the cable module 4. The cable module 4 is inserted into the module hole 21 of the sleeve 2 from the first end of the sleeve 2. The inclined surface 43 of the cable module 4 is aligned with the side wall of the module hole 21, and the vertical surface 44 of the cable module 4 faces the center of the sleeve 2. Then, the baffle 3 and the pressure plate 1 are installed. The screw 5 is passed through the baffle 3, the sleeve 2 and the pressure plate 1 in sequence. The nut 6 is installed. The installed plug is inserted into the cable duct. The nut 6 is tightened. The baffle 3 and the pressure plate 1 are used to squeeze the sleeve 2 to achieve the sealing of the cable duct. This method greatly reduces the difficulty of installing and disassembling the cable module 4.

[0053] While the specific embodiments of the present invention have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solutions of the present invention are still within the scope of protection of the present invention.

Claims

1. A cable duct plugging device, characterized in that, include: Pressure plates, sleeves, baffles, and cable modules; The pressure plate is installed at the first end of the sleeve, and the baffle is installed at the second end of the sleeve. The outer contour of the sleeve is cylindrical, and the sleeve has a square module hole inside. The baffle is a circular plate structure with a second square hole in the middle, which is smaller than the module hole at the second end of the sleeve. Two baffles are provided in the second square hole of the baffle, and the two baffles are perpendicular to each other at the center. The baffle divides the second square hole of the baffle into four equal-sized areas. The baffle has four opening slots, and the four opening slots are connected to one of the areas respectively. The width of the opening slots is greater than or equal to the diameter of the cable to be threaded. Multiple cable modules are installed in the module hole. The cable module has a square cross-section, a cable hole for passing through the cable, and a dividing groove that runs through the cable hole and divides the cable module into two halves.

2. The cable duct plugging device as described in claim 1, characterized in that, The sidewall of the module hole has a set slope along the axial direction of the sleeve, and the module hole at the first end of the sleeve is smaller than the module hole at the second end. The cable module has four facades, of which two adjacent facades are inclined facades with a set slope, and the other two are vertical facades.

3. The cable duct plugging device as described in claim 2, characterized in that, The slope of the module hole sidewall is set to 1°, and the slope of the cable module inclined surface is set to 1°.

4. The cable duct plugging device as described in claim 1, characterized in that, The sleeve is made of rubber, and the cable module is made of rubber.

5. The cable duct plugging device as described in claim 1, characterized in that, The pressure plate is provided with a first separation groove, which divides the pressure plate into two halves; The sleeve is provided with a second separation groove, which divides the sleeve into two halves.

6. The cable duct plugging device as described in claim 1, characterized in that, The baffle, sleeve, and pressure plate are all provided with through holes and are positioned accordingly. The screw passes through the through holes of the baffle, sleeve, and pressure plate in sequence, and a nut is installed on the exposed end of the screw.

7. The cable duct plugging device as described in claim 6, characterized in that, The screw has a nut with a hexagonal cross-section, and the through hole of the baffle is provided with anti-rotation holes in sequence away from the sleeve, the anti-rotation holes having a hexagonal cross-section.

8. The sealing method of the cable duct plug as described in claim 2, characterized in that, Install the cable in the cable module, insert the cable module into the module hole of the sleeve from the first end of the sleeve, align the inclined surface of the cable module with the side wall of the module hole, and the vertical surface of the cable module with the center of the sleeve.

Images