Threading elbow with inspection opening
By designing a bend with an inspection port, the problems of cable springback and displacement at corners and difficulties in cable pulling were solved, achieving both construction stability and convenience.
Patent Information
- Application Number
- CN202520119184.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-01-17
AI Technical Summary
Existing conduit systems are prone to springback and displacement after being bent, and threading is difficult.
Design a wire threading elbow with an inspection port, including an elbow body, an inlet section, an outlet section and a transition section, with a built-in included angle, fixed in position by bolts, and equipped with an inspection port and a cover plate for easy wire threading and maintenance.
It achieves stability and convenience in conduit installation, avoids springback and displacement, simplifies the construction process, and improves the convenience of wiring and maintenance.
Smart Images
Figure CN223898903U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of conduit technology, and in particular to a conduit elbow with an inspection port. Background Technology
[0002] Currently, wiring needs to pass through conduits. If the line needs to turn, the conduit needs to be bent accordingly. Because conduits have good flexibility, if the bent conduit is not fixed, it will slowly spring back and shift, affecting the safety of the line. In addition, the existing conduits are integrally formed, and if there are too many turns, wiring becomes very difficult. Utility Model Content
[0003] To address the shortcomings of existing conduit systems that use bending methods to turn the wiring, such as easy springback and displacement of the conduit, and inconvenience in wire pulling, this invention proposes a wire puller with an inspection port, which avoids springback and displacement and facilitates wire pulling.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A wire threading elbow with an inspection port includes an elbow body, which includes an inlet section, an outlet section, and a transition section. The inlet section transitions to the outlet section through the transition section. There is an angle between the axis of the inlet section and the axis of the outlet section. An inspection port is provided on one side of the transition section. An installation hole is provided on the side of the elbow body near the inspection port. The installation hole penetrates the elbow body along the side wall of the elbow body. A boss is fixedly connected to the inner circumference of the end of the installation hole away from the inspection port to form a narrowing. The wire threading elbow also includes a bolt that penetrates the narrowing and abuts against the boss, and a cover plate that seals the inspection port. A locking key is fixedly connected to the cover plate and is embedded in the installation hole.
[0006] With the above settings, the inlet and outlet sections of the elbow body have an inherent angle, eliminating the need for temporary bending during construction and resulting in better shape stability; the bolt-fixed position prevents the elbow from shifting during construction; and the built-in inspection port facilitates cable management, maintenance, and cable threading.
[0007] Furthermore, the axis of the incoming line segment is perpendicular to the axis of the outgoing line segment, and the transition section has a fan-shaped structure to allow for a rounded transition between the incoming and outgoing line segments.
[0008] The above settings further facilitate threading.
[0009] Furthermore, the inspection port is designed as a fan-shaped ring to fit the transition section, and there are two mounting holes, which are respectively located at both ends of the outer periphery of the inspection port.
[0010] With the above setup, the cover plate is stably secured to the inspection port via the latches at both ends.
[0011] Furthermore, the cover plate is provided with a fan-shaped protrusion that matches the inspection port. A rubber layer is provided on the outside of the protrusion. The protrusion is embedded into the inspection port, and the rubber layer is in contact with the inner circumference of the inspection port.
[0012] The above settings increase the sealing between the cover and the access port.
[0013] Furthermore, the end of the key is rounded so that the key can be inserted into the mounting hole.
[0014] Furthermore, the elbow body is a one-piece molded structure. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of a wire bend as an example.
[0016] Figure 2 This is a schematic diagram of the elbow body in an embodiment.
[0017] Figure 3 This is a schematic diagram of the cover plate in an embodiment.
[0018] Figure 4 This is a cross-sectional view of the wire bend in the embodiment. Detailed Implementation
[0019] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.
[0020] like Figures 1 to 4 As shown, a wire threading elbow with an inspection port includes an elbow body, which includes an inlet section 2, an outlet section 3, and a transition section 4. The inlet section 2 transitions to the outlet section 3 through the transition section 4. There is an angle between the axis of the inlet section 2 and the axis of the outlet section 3. An inspection port 5 is provided on one side of the transition section 4. An installation hole 6 is provided on the side of the elbow body near the inspection port 5. The installation hole 6 penetrates the elbow body along the side wall of the elbow body. A boss 7 is fixedly connected to the inner circumference of the end of the installation hole 6 away from the inspection port 5 to form a narrowing. The wire threading elbow also includes a bolt 8 that penetrates the narrowing and abuts against the boss 7, and a cover plate 9 that seals the inspection port 5. A locking key 10 is fixedly connected to the cover plate 9 and is embedded in the installation hole 6.
[0021] With the above settings, the inlet section 2 and outlet section 3 of the elbow body have an angle, so there is no need to bend them temporarily during construction, and the shape stability is better; the position is fixed by bolts 8, so the wire bend is not easy to move during construction; it has an inspection port 5, which is convenient for cable management, maintenance and wire threading.
[0022] Both the inlet section 2 and the outlet section 3 of this application are circular pipes, connected by a transition section 4 to facilitate the passage of the line from the inlet section 2 to the outlet section 3. An angle of 30°-120° exists between the axis of the inlet section 2 and the axis of the outlet section 3 to facilitate line bends, which can be set according to the requirements of the engineering line route. In use, the elbow body is first fixed to the installation position on the ground or wall using bolts 8. The studs of bolts 8 are tightened into the installation position, and the head of bolts 8 presses against the boss 7 to fix the elbow body in the installation position. The inspection port 5 faces away from the installation position. When threading the cable, after the cable enters the transition section 4, the operator can reach into the inspection port 5 to help push the cable forward, making it easier to thread. After the cable passes through the cable bend, cover plate 9 is placed on top, and key 10 is inserted into the mounting hole 6. Key 10 prevents cover plate 9 from falling off. Cover plate 9 seals inspection port 5, providing dust and water protection. Key 10 also seals mounting hole 6 to prevent external moisture from entering and to prevent bolt 8 from rusting. Later, if a cable fault occurs, cover plate 9 can be opened to inspect the internal cable without disassembling the entire cable conduit.
[0023] As one implementation method, the axis of the incoming line segment 2 is perpendicular to the axis of the outgoing line segment 3, and the transition segment 4 is a fan-shaped structure to make the transition between the incoming line segment 2 and the outgoing line segment 3 rounded.
[0024] The above settings further facilitate threading.
[0025] In the top view of this application, the transition section 4 is basically a fan-shaped ring. The two ends of the inner wall of the transition section 4 are connected to the inner wall of the inlet section 2 and the inner wall of the outlet section 3, respectively. The inner wall of the transition section 4 is curved to prevent the end of the line from getting stuck in the transition section 4. After the line passes through the transition section 4 from the inlet section 2, the end of the line can enter the outlet section 3 under the action of the inner wall of the transition section 4. In addition, the inner wall of the transition section 4 is smooth, which reduces the friction between the line and the transition section 4 and reduces the wear of the line during the threading process.
[0026] As one implementation, the inspection port 5 is set as a fan-shaped ring that is adapted to the transition section 4, and there are two mounting holes 6, which are respectively set at both ends of the outer periphery of the inspection port 5.
[0027] With the above setup, the cover plate 9 is stably placed on the inspection port 5 by the latches 10 at both ends.
[0028] The inspection port 5 in this application is a fan-shaped ring, so that the area of the inspection port 5 is basically equal to the area of one side of the transition section 4. The area of the inspection port 5 is maximized to facilitate maintenance and wiring.
[0029] As one implementation, the cover plate 9 is provided with a fan-shaped protruding edge 11 that is adapted to the inspection port 5. A rubber layer 12 is provided on the outside of the protruding edge 11. The protruding edge 11 is embedded in the inspection port 5, and the rubber layer 12 is in contact with the inner circumference of the inspection port 5.
[0030] The above settings increase the sealing between the cover plate 9 and the inspection port.
[0031] As one implementation method, the end of the key 10 is provided with rounded corners so that the key 10 can be embedded in the mounting hole 6.
[0032] As one implementation method, the elbow body is a one-piece molded structure.
[0033] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.
Claims
1. A wire bend with an inspection port, characterized in that, The device includes an elbow body, which comprises an inlet section, an outlet section, and a transition section. The inlet section transitions to the outlet section via the transition section. An angle exists between the axis of the inlet section and the axis of the outlet section. An inspection port is provided on one side of the transition section. A mounting hole is provided on the side of the elbow body near the inspection port. The mounting hole penetrates the elbow body along its sidewall. A boss is fixedly connected to the inner circumference of the mounting hole away from the inspection port, forming a constriction. The elbow also includes a bolt that penetrates the constriction and abuts against the boss, and a cover plate that seals the inspection port. A locking key is fixedly connected to the cover plate and is embedded in the mounting hole.
2. A threading elbow with an inspection port according to claim 1, characterized in that, The axis of the incoming line section is perpendicular to the axis of the outgoing line section, and the transition section is a fan-shaped structure to allow for a rounded transition between the incoming line section and the outgoing line section.
3. A threading elbow with an inspection port according to claim 2, characterized in that, The inspection port is configured as a fan-shaped ring that is adapted to the transition section, and there are two mounting holes, which are respectively located at both ends of the outer periphery of the inspection port.
4. A threading elbow with an inspection port according to claim 3, characterized in that, The cover plate is provided with a fan-shaped protruding edge that is adapted to the inspection port. A rubber layer is provided on the outer side of the protruding edge. The protruding edge is embedded in the inspection port, and the rubber layer is in contact with the inner circumference of the inspection port.
5. A threading elbow with an inspection port according to claim 1, characterized in that, The end of the key is rounded so that the key can be inserted into the mounting hole.
6. A threading elbow with an inspection port according to claim 1, characterized in that, The elbow body is a one-piece molded structure.