Cable tube plugging device
By designing a cable conduit plug with a rubber sealing ring and snap-fit assembly, the problems of poor sealing effect and inconvenient disassembly are solved, achieving efficient sealing and convenient assembly and disassembly, thus improving the performance of the cable conduit plug.
Patent Information
- Application Number
- CN202520744336.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-17
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-04-17
AI Technical Summary
Existing cable duct plugs suffer from poor sealing performance, insecure installation, and difficult disassembly. Furthermore, traditional materials are wasteful and difficult to remove and clean.
A cable conduit plugging device including a tubular insert and a plugging cap is designed. The insert is surrounded by a rubber sealing ring on its side, extends obliquely outward, and is equipped with a snap-fit component and a reinforcement component. The snap-fit component snaps into the inner wall of the cable conduit through a snap block, and the rubber sealing ring engages with the inner wall through friction. The plugging cap is provided with a disassembly and assembly auxiliary hole for easy disassembly.
It achieves good sealing effect, stable structure, convenient assembly and disassembly, reduces material waste, and improves installation firmness and disassembly efficiency.
Smart Images

Figure CN223843493U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cable fittings technology, specifically to a cable conduit plug. Background Technology
[0002] Cable conduit plugs are accessories used to seal the openings of cable conduits. Current technology commonly uses traditional methods such as fireproof putty, cement, and sand to seal conduits. These methods are wasteful of materials and labor, and are particularly inefficient, often resulting in cracks or even detachment due to thermal expansion and contraction, cable vibration, and surrounding vibrations. Furthermore, when removing the plug for emergency repairs and maintenance, the hardened sealing material is difficult to remove and clean, causing inconvenience. While plastic or flexible sealants are currently used for pipe sealing, they still suffer from poor sealing, insecure installation, and difficult disassembly, indicating a need for structural improvement. Summary of the Invention
[0003] The purpose of this invention is to solve the problems in the prior art and provide a cable pipe plug with good sealing effect, stable structure, and convenient assembly and disassembly.
[0004] To achieve the above objectives, the technical solution of this utility model is as follows:
[0005] A cable conduit plug includes a tubular insert and a plugging cap disposed at one end of the insert. A rubber sealing ring is arranged around the side of the insert, the inner side of the rubber sealing ring is fixedly connected to the insert, and the outer side of the rubber sealing ring extends obliquely toward the plugging cap.
[0006] Preferably, the side of the insert is provided with snap-fit components arranged in a ring array, the snap-fit components including at least two through slots opened on the side of the insert and snap-fit blocks disposed on the outer wall of the insert between two adjacent through slots.
[0007] Preferably, the rubber sealing ring is located between the sealing cap and the snap-fit assembly.
[0008] Preferably, the end of the card block near the sealing cover is a wider snap-fit end, and the end of the card block away from the sealing cover is a narrower insertion end. The outer surface of the card block between the snap-fit end and the insertion end is an inclined guide surface.
[0009] Preferably, the number of the snap-fit components is four and they are evenly spaced.
[0010] Preferably, the inner side of the rubber sealing ring is provided with a reinforcing member, and the two ends of the reinforcing member are fixedly connected to the inner wall of the rubber sealing ring and the outer wall of the insert, respectively.
[0011] Preferably, the reinforcing members are arranged at equal intervals around the insert.
[0012] Preferably, the sealing cap has a T-shaped disassembly and assembly auxiliary hole at the center of the side away from the insert, and the inner wall of the opening of the disassembly and assembly auxiliary hole has an arc transition with the internal space.
[0013] Preferably, a positioning hole is provided on the sealing cover on one side of the disassembly and assembly auxiliary hole.
[0014] The beneficial effects of this utility model are:
[0015] This utility model discloses a cable conduit plug, comprising a tubular insert and a plugging cap disposed at one end of the insert. A rubber sealing ring is arranged around the side of the insert, with the inner side of the rubber sealing ring fixedly connected to the insert, and the outer side of the rubber sealing ring extending obliquely towards the plugging cap. The outer diameter of the rubber sealing ring can be set to be the same as or similar to the diameter of the plugging cap. Combined with the overall oblique structure, when the cable conduit plug is installed on the cable conduit, the rubber sealing ring can have a large contact surface with the inner wall of the cable conduit, thereby improving the sealing effect. The side of the insert is provided with snap-fit components arranged in a ring array. The snap-fit components include at least two through slots formed on the side of the insert and snap-fit blocks disposed on the outer wall of the insert between two adjacent through slots. The through slot design reduces the rigidity of the snap-fit components, allowing them to deform to a certain extent during the installation and removal of the cable conduit plug, and preventing damage. A shallow groove corresponding to the locking block can be opened on the inner wall of the cable conduit end. When the locking block is inserted into the cable conduit, the wider locking end engages with the corresponding groove. Combined with the friction between the rubber sealing ring and the inner wall of the cable conduit, the cable conduit plug can be stably installed. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a structural schematic diagram of the present invention from a frontal view.
[0018] Figure 3 for Figure 2 Sectional view along the middle AA direction;
[0019] Figure 4 This is a schematic diagram of another embodiment of the present utility model;
[0020] Figure 5 for Figure 4 Enlarged view of point B in the middle. Detailed Implementation
[0021] To enable those skilled in the art to better understand the present invention, the following detailed description of the invention is provided in conjunction with embodiments.
[0022] like Figures 1-3 The cable conduit plug shown includes a tubular insert 1 and a plugging cap 2 disposed at one end of the insert 1. A rubber sealing ring 3 is arranged around the side of the insert 1. The inner side of the rubber sealing ring 3 is fixedly connected to the insert 1, and the outer side of the rubber sealing ring 3 extends obliquely towards the plugging cap 2. The outer diameter of the rubber sealing ring 3 can be set to be the same as or similar to the diameter of the plugging cap 2. Combined with the overall oblique structure, when the cable conduit plug is installed on the cable conduit, the rubber sealing ring 3 can have a large contact surface with the inner wall of the cable conduit, thereby improving the sealing effect.
[0023] The insert 1 has a ring-shaped array of snap-fit components 4 on its side. The number of snap-fit components 4 can be increased or decreased according to needs and pipe diameter, but generally there are four, evenly spaced. The rubber sealing ring 3 is located between the sealing cap 2 and the snap-fit components 4. The snap-fit components 4 include at least two through slots 41 on the side of the insert 1 and snap blocks 42 on the outer wall of the insert 1 between two adjacent through slots 41. The number of through slots 41 can be three or four, and the number of snap blocks 42 is one less than the number of through slots 41. The design of the through slots 41 can reduce the rigidity of the snap-fit components 4, allowing them to deform to a certain extent during the installation and removal of the cable pipe plug, and making them less prone to damage. The end of the snap block 42 closest to the sealing cap 2 is a wider snap-fit end 43, and the end of the snap block 42 furthest from the sealing cap 2 is a narrower insertion end 44. The outer surface of the snap block 42 between the snap-fit end 43 and the insertion end 44 is an inclined guide surface 45. A shallow groove corresponding to the locking block 42 can be made on the inner wall of the cable conduit end. For example, the groove depth can be 1-2mm. When the locking block 42 is inserted into the cable conduit, the wider locking end 43 engages with the corresponding groove. Combined with the friction between the rubber sealing ring 3 and the inner wall of the cable conduit, the cable conduit plug can be stably installed. In addition, the insert 1, the sealing cover 2, and the locking assembly 4 can be integrally molded, and the rubber sealing ring 3 and the insert 1 can be connected by adhesive.
[0024] As another preferred option, such as Figures 4-5 As shown, a reinforcing member 5 is provided on the inner side of the rubber sealing ring 3. The two ends of the reinforcing member 5 are fixedly connected to the inner wall of the rubber sealing ring 3 and the outer wall of the insert 1, respectively. The reinforcing member 5 can be a single annular structure or a structure consisting of multiple members evenly spaced around the insert 1. The reinforcing member 5 strengthens the rubber sealing ring 3, making its installation structure more stable and reducing overall deformation of the rubber sealing ring 3 after repeated disassembly and reassembly of the cable conduit plug. Furthermore, the reinforcing member 5 and the rubber sealing ring 3 can be made of the same material, such as rubber.
[0025] The sealing cap 2 has a T-shaped disassembly / removal auxiliary hole 6 at its center on the side away from the insert 1. The inner wall of the opening of the disassembly / removal auxiliary hole 6 forms an arc transition with the internal space. When the cable pipe plug needs to be disassembled, due to the relatively sturdy overall installation structure, a hook-shaped tool can be inserted into the disassembly / removal auxiliary hole 6 and engaged, facilitating the overall pulling of the cable pipe plug from the end of the cable pipe. A positioning hole 7 is provided on the sealing cap 2 on one side of the disassembly / removal auxiliary hole 6. The positioning hole 7 can correspond to the position of the disassembly / removal auxiliary hole 6 or the engaging component 4, providing guidance for the disassembly and reassembly of the cable pipe plug.
[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A cable conduit plug, characterized in that: It includes a tubular insert (1) and a sealing cap (2) disposed at one end of the insert (1). A rubber sealing ring (3) is provided around the side of the insert (1). The inner side of the rubber sealing ring (3) is fixedly connected to the insert (1), and the outer side of the rubber sealing ring (3) extends obliquely toward the sealing cap (2).
2. The cable conduit plug according to claim 1, characterized in that: The side of the insert (1) is provided with snap-fit components (4) arranged in a ring array. The snap-fit components (4) include at least two through slots (41) opened on the side of the insert (1) and snap-fit blocks (42) disposed on the outer wall of the insert (1) between two adjacent through slots (41).
3. The cable conduit plug according to claim 2, characterized in that: The rubber sealing ring (3) is located between the sealing cap (2) and the snap-fit assembly (4).
4. The cable conduit plug according to claim 2, characterized in that: The end of the card block (42) near the sealing cap (2) is a wider snap-fit end (43), and the end of the card block (42) away from the sealing cap (2) is a narrower insertion end (44). The outer surface of the card block (42) located between the snap-fit end (43) and the insertion end (44) is an inclined guide surface (45).
5. The cable conduit plug according to claim 2, characterized in that: The number of the snap-fit components (4) is four and they are evenly spaced.
6. The cable conduit plug according to claim 1, characterized in that: The rubber sealing ring (3) is provided with a reinforcing member (5) on its inner side. The two ends of the reinforcing member (5) are fixedly connected to the inner wall of the rubber sealing ring (3) and the outer wall of the insert (1), respectively.
7. The cable conduit plug according to claim 6, characterized in that: The reinforcement (5) is arranged at equal intervals around the insert (1).
8. The cable conduit plug according to claim 1, characterized in that: The sealing cap (2) has a T-shaped disassembly and assembly auxiliary hole (6) at the center of the side away from the insert (1), and the inner wall of the opening of the disassembly and assembly auxiliary hole (6) and the internal space are in a rounded transition.
9. The cable conduit plug according to claim 8, characterized in that: A positioning hole (7) is provided on the sealing cover (2) on one side of the disassembly and assembly auxiliary hole (6).