Pre-embedded line pipe protection equipment

By combining the positioning mechanism and the auxiliary mechanism, the knob drives the worm gear system to slide the rubber block in an interference fit with the inner wall of the conduit. Combined with the positioning of the outer side of the slider, the problem that the existing device cannot securely clamp conduits of different inner diameters is solved, thus achieving wider applicability and protection.

CN223843449UActive Publication Date: 2026-01-27NORTHWEST ENGINEERING CORPORATION LIMITED
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Patent Information

Application Number
CN202520151307.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-22
Publication Date
2026-01-27
Estimated Expiration
2035-01-22

AI Technical Summary

Technical Problem

Existing pre-buried conduit protection devices cannot be stably inserted into conduits of different models, especially those with larger inner diameters, causing the protective sleeve to fall off and failing to provide effective protection.

Method used

It employs a positioning mechanism and an auxiliary mechanism. The worm gear system is driven by a knob to drive the slide bar and guide bar. The sliding rubber block is interference-fitted with the inner wall of the conduit. Combined with the positioning of the slider and the outer side of the rubber pad, it can adapt to conduits with different inner diameters.

Benefits of technology

It achieves a secure connection of the protective plug in conduits of different inner diameters, preventing it from falling off, enhancing the protection against foreign objects, and making it more widely applicable.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of mechanical and electrical installation, and discloses a pre-embedded wire pipe protection device, which comprises a base, a protection plug, a positioning mechanism and an auxiliary mechanism, the protection plug is fixedly arranged at the top of the base, the protection plug is hollow, and a plurality of through holes are formed in the side wall of the protection plug; rubber blocks which are in one-to-one correspondence with the through openings and can slide in and out of the through openings are arranged in the protection plug, the positioning mechanism can drive the rubber blocks to slide relative to the through openings, a plurality of sliding grooves are formed in the base, sliding blocks are inserted in the sliding grooves in a sliding mode, and the auxiliary mechanism can drive the sliding blocks to slide relative to the sliding grooves. The positioning mechanism drives the rubber block to slide, and the auxiliary mechanism synchronously and reversely drives the sliding block to move, so that the rubber block and the sliding block clamp the wall of the wire pipe, and therefore, the wire pipe protection device adapts to wire pipes of different specifications, prevents the wire pipes from falling off, and ensures the protection effect.
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Description

Technical Field

[0001] This utility model belongs to the field of electromechanical installation technology, specifically relating to a pre-embedded conduit protection device. Background Technology

[0002] Conduit is usually pre-buried before wiring is laid, and the conduit can protect the wires.

[0003] A patent document with publication number CN215990103U discloses a "splittable row-type pre-embedded conduit protection device," including a modular base and a conduit protection tube fixedly disposed on the upper surface of the modular base. The modular base is a cubic plate-like structure, with a first assembly structure at the left end and a second assembly structure at the right end, the first and second assembly structures cooperating with each other. This application mainly uses the conduit protection tube as a plug to seal the conduit port to prevent foreign objects from entering the conduit. However, there are many types of conduits, and different types of conduits have different diameters. For conduits that need to carry multiple wires, they are usually quite thick. If the inner diameter of the conduit is larger than the outer diameter of the conduit protection sleeve of the device, the conduit protection sleeve cannot be stably inserted into the conduit, easily causing the conduit protection sleeve to fall off, thus failing to provide protection. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a pre-embedded conduit protection device. A positioning mechanism drives a rubber block to slide, and an auxiliary mechanism simultaneously drives a slider to move in the opposite direction, so that the rubber block and the slider clamp the conduit wall tightly, thereby adapting to conduits of different specifications, preventing the conduit from falling off, and ensuring the protective effect.

[0005] The present invention provides a pre-embedded conduit protection device, comprising a base, a protective plug, a positioning mechanism, and an auxiliary mechanism. The protective plug is fixedly installed on the top of the base. The protective plug is hollow and has several openings on its side wall. The protective plug contains rubber blocks that correspond one-to-one with the openings and can slide in and out of the openings. The positioning mechanism can drive the rubber blocks to slide relative to the openings. The base has several sliding grooves, in which sliders are slidably inserted. The auxiliary mechanism can drive the sliders to slide relative to the sliding grooves.

[0006] Furthermore, the positioning mechanism includes a slide rod, a rotating shaft, a guide rod, an arc-shaped rod, and a drive assembly. The rotating shaft is rotatably mounted on the inner bottom surface of the base. The slide rod corresponds one-to-one with the rubber block and the two are fixedly connected. The slide rod is slidably mounted in the protective plug. The guide rod corresponds one-to-one with the slide rod and is fixedly connected to the bottom end of the slide rod. The arc-shaped rod corresponds one-to-one with the guide rod and is circumferentially distributed and fixedly connected to the side wall of the rotating shaft. The bottom end of the guide rod is slidably connected to the arc-shaped rod. The drive assembly is used to drive the rotating shaft to rotate.

[0007] Furthermore, the drive assembly includes a worm, a worm wheel, and a knob. The worm wheel is mounted on a rotating shaft, the worm is rotatably mounted on the side of the base and meshes with the worm wheel, and the knob is fixedly mounted on the end of the worm located outside the base.

[0008] Furthermore, the auxiliary mechanism includes a pin, a gear, a driven rack, and a driving rack. The pin is fixedly installed on the inner wall of the slide groove, the gear is rotatably installed on the pin, the driven rack is fixedly connected to the slider and meshes with the gear, and the driving rack is fixedly connected to the guide rod and meshes with the gear.

[0009] Furthermore, the driving rack is located above the pin, and the driven rack is located below the pin.

[0010] Furthermore, a rubber pad is fixedly installed on the side of the slider near the protective plug.

[0011] The beneficial effects of this utility model are as follows:

[0012] 1. This pre-embedded conduit protection device, when the inner diameter of the conduit is larger than the outer diameter of the protective plug, can rotate the worm gear by turning the knob, and at the same time cooperate with the worm wheel, rotating shaft, arc rod, guide rod and sliding rod, to drive the rubber block to slide out of the through-hole and tightly fit the protective plug against the inner wall of the conduit. At this time, the interference fit between the rubber block and the inner wall of the conduit can make the protective plug tightly stuck in the inner wall of the conduit, thereby preventing the protective plug from falling out of the conduit. The base can stably block the open end of the conduit, and it is suitable for conduits with different inner diameters, thus effectively preventing foreign objects from entering the interior of the conduit.

[0013] 2. This pre-embedded conduit protection device uses a sliding rod to slide towards the side closer to the opening. Simultaneously, in conjunction with the guide rod, drive rack, pin, gear, and driven rack, it can drive the slider to gradually approach the protective plug. At this time, the sliding of the slider can cause the rubber pad to tightly adhere to the outer wall of the conduit. The interference fit between the rubber pad and the outer wall of the conduit also allows the protective plug to be firmly inserted into the inner wall of the conduit. The external positioning method adopted by the slider and rubber pad is suitable for conduits with larger inner diameters, making it more applicable and more convenient to use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the positioning mechanism of this utility model in its unfolded state.

[0016] Figure 3 This is a top view of the cross-sectional structure of the present invention;

[0017] Figure 4 This is a side view of the cross-sectional structure of the present invention;

[0018] Figure 5 Here is a schematic diagram of the overall structure of the slide bar of this utility model:

[0019] Figure 6 Appendix to this utility model Figure 4 A magnified structural diagram at point A;

[0020] The markings in the diagram are: 1. Base; 2. Protective plug; 3. Through port; 4. Positioning mechanism; 41. Slide rod; 42. Rotating shaft; 43. Worm gear; 44. Rubber block; 45. Guide rod; 46. Arc rod; 47. Worm wheel; 48. Knob; 5. Auxiliary mechanism; 51. Slider; 52. Rubber pad; 53. Pin; 54. Gear; 55. Driven rack; 56. Drive rack; 6. Slide groove. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer and more understandable, the technical solutions of this utility model will be further described in detail below with reference to the accompanying drawings of the embodiments of this utility model.

[0022] Reference Figures 1 to 6 The pre-embedded conduit protection device of this utility model includes a base 1, a protective plug 2, a positioning mechanism 4 and an auxiliary mechanism 5.

[0023] The protective plug 2 is fixedly installed on the top of the base 1. When in use, the protective plug 2 is inserted into the inside of the conduit port so that the outer wall of the conduit port fits against the outer wall of the base 1, which can prevent foreign objects from entering the inside of the conduit.

[0024] The protective plug 2 is hollow and has several openings 3 on its side wall. The protective plug 2 is equipped with rubber blocks 44 that correspond one-to-one with the openings 3 and can slide in and out of the openings 3. The positioning mechanism 4 can drive the rubber blocks 44 to slide relative to the openings 3. When the diameter of the conduit is larger than the diameter of the protective plug 2, the positioning mechanism 4 drives the rubber blocks 44 to slide outward from the openings 3, so that the rubber blocks 44 can abut against the conduit port from the inside, so that the base 1 can stably block the opening end of the conduit and effectively prevent foreign objects from entering the conduit. At the same time, the base 1 is equipped with several sliding grooves 6, and sliders 51 are slidably inserted in the sliding grooves 6. The auxiliary mechanism 5 can drive the sliders 51 to slide relative to the sliding grooves 6. The sliders 51 can cooperate with the rubber blocks 44 to clamp the conduit port from the outside. The two work together to position the conduit, which can be used for conduits with larger inner diameters and has higher adaptability.

[0025] The positioning mechanism 4 includes a slide rod 41, a rotating shaft 42, a guide rod 45, an arc-shaped rod 46, and a drive assembly. The rotating shaft 42 is rotatably mounted on the inner bottom surface of the base 1. The slide rod 41 corresponds one-to-one with the rubber block 44 and the two are fixedly connected. The slide rod 41 is slidably mounted in the protective plug 2. The guide rod 45 corresponds one-to-one with the slide rod 41 and is fixedly connected to the bottom end of the slide rod 41. The arc-shaped rod 46 corresponds one-to-one with the guide rod 45 and is circumferentially distributed and fixedly connected to the side wall of the rotating shaft 42. The bottom end of the guide rod 45 is slidably connected to the arc-shaped rod 46. The drive assembly is used to drive the rotating shaft 42 to rotate. The drive assembly includes a worm gear 43, a worm wheel 47, and a knob 48. The worm wheel 47 is fitted on the rotating shaft 42. The worm gear 43 is rotatably mounted on the side of the base 1 and meshes with the worm wheel 47. The knob 48 is fixedly mounted on the end of the worm gear 47 located outside the base 1.

[0026] The user can directly rotate the worm 43 by turning the knob 48. Since the worm 43 meshes with the worm wheel 47, which is mounted on the shaft 42, the rotation of the worm 43 can drive the shaft 42 to rotate, thereby causing the arc rod 46 to rotate around the shaft 42. Since the guide rod 45 is fixedly connected to the slide rod 41, and the slide rod 41 is slidably installed in the protective plug 2, and the guide rod 45 is slidably connected to the arc rod 46, when the arc rod 46 rotates, it squeezes the guide rod 45, thereby causing the slide rod 41 to slide, which in turn causes the rubber block 44 to slide relative to the opening 3.

[0027] The auxiliary mechanism 5 includes a rubber pad 52, a pin 53, a gear 54, a driven rack 55, and a driving rack 56. A slider 51 is slidably connected to the inner wall of the slide groove 6. A rubber pad 52 is fixedly installed on the side wall of the slider 51. The sliding of the slider 51 causes the rubber pad 52 to fit tightly against the outer wall of the pipe. This external positioning method is suitable for larger inner diameter conduits and is more convenient to use. A pin 53 is fixedly installed on the inner wall of the slide groove 6. A gear 54 and a driven rack 55 are rotatably connected to the outer wall of the pin 53, and the driven rack 55 meshes with the gear 54. The driven rack 55 is located below the pin 53 and the driving rack 56 is located above the pin 53. The driving rack 56 is fixedly connected to the guide rod 45. When the slide rod 41 drives the rubber block 44 to slide out of the protective plug 2 through the port 3, the guide rod 45 can drive the driving rack 56 to move synchronously. At the same time, it will drive the gear 54 meshing with it to rotate on the outer wall of the pin 53. Then, the driven rack 55 drives the slider 51 to slide. At this time, the slider 51 and the rubber block 44 move in opposite directions, thereby clamping the tube wall from both the inner and outer sides.

[0028] In summary, the working principle of this utility model is as follows: the protective plug 2 is inserted into the inside of the conduit port, so that the outer wall of the conduit port fits against the outer wall of the base 1. When the inner diameter of the conduit is larger than the outer diameter of the protective plug 2, causing the protective plug 2 to become loose, the worm gear 43 is rotated by the knob 48. The rotation of the worm gear 43, in conjunction with the worm wheel 47 meshing with it, can drive the rotating shaft 42 to rotate. At the same time, the rotating shaft 42 will drive the arc rod 46 to rotate synchronously. The arc rod 46 will squeeze the guide rod 45 while rotating, so that the guide rod 45 will drive the slide rod 41 to slide towards the side closer to the opening 3. At the same time, the slide rod 41 will drive the rubber block 44 to slide out of the protective plug 2 through the opening 3 until the rubber block 44 is tightly attached to the inner wall of the conduit. At this time, the cooperation between the rubber block 44 and the inner wall of the conduit can make the protective plug 2 tightly stuck in the inner wall of the conduit, thereby preventing the protective plug 2 from falling off the conduit. This allows the base 1 to steadily block the opening end of the conduit, effectively preventing foreign objects from entering the inside of the conduit.

[0029] When the slide rod 41 drives the rubber block 44 to slide out of the protective plug 2 through the opening 3, the guide rod 45 can drive the drive rack 56 to move synchronously. At the same time, the drive rack 56 will drive the gear 54 meshing with it to rotate on the outer wall of the pin 53. At this time, the rotation of the gear 54 and the driven rack 55 meshing with it can drive the slider 51 to slide on the inner wall of the groove 6 towards the side closer to the protective plug 2. When the inner diameter of the conduit is too large, causing the rubber block 44 to not fit against the inner wall of the conduit, the sliding of the slider 51 can drive the rubber pad 52 to fit tightly against the outer wall of the conduit. At this time, the cooperation between the rubber pad 52 and the outer wall of the conduit can also make the protective plug 2 firmly inserted into the inner wall of the conduit, so that the base 1 firmly blocks the opening end of the conduit. The sliding of the slider 51 and the rubber pad 52 can position the conduit with an excessively large inner diameter, which is more applicable and more convenient to use.

[0030] Any content not described in detail in this specification is considered prior art within this technical field.

Claims

1. A pre-embedded conduit protection device, characterized in that, The device includes a base, a protective plug, a positioning mechanism, and an auxiliary mechanism. The protective plug is fixedly installed on the top of the base. The protective plug is hollow and has several openings on its side walls. The protective plug contains rubber blocks that correspond one-to-one with the openings and can slide in and out of the openings. The positioning mechanism can drive the rubber blocks to slide relative to the openings. The base has several sliding grooves, and sliders are slidably inserted into the sliding grooves. The auxiliary mechanism can drive the sliders to slide relative to the sliding grooves.

2. The pre-embedded conduit protection device according to claim 1, characterized in that, The positioning mechanism includes a slide rod, a rotating shaft, a guide rod, an arc-shaped rod, and a drive assembly. The rotating shaft is rotatably mounted on the inner bottom surface of the base. The slide rod corresponds one-to-one with the rubber block and the two are fixedly connected. The slide rod is slidably mounted in the protective plug. The guide rod corresponds one-to-one with the slide rod and is fixedly connected to the bottom end of the slide rod. The arc-shaped rod corresponds one-to-one with the guide rod and is circumferentially distributed and fixedly connected to the side wall of the rotating shaft. The bottom end of the guide rod is slidably connected to the arc-shaped rod. The drive assembly is used to drive the rotating shaft to rotate.

3. The pre-embedded conduit protection device according to claim 2, characterized in that, The drive assembly includes a worm, a worm wheel, and a knob. The worm wheel is mounted on a rotating shaft. The worm is rotatably mounted on the side of the base and meshes with the worm wheel. The knob is fixedly mounted on the end of the worm located outside the base.

4. The pre-embedded conduit protection device according to claim 2, characterized in that, The auxiliary mechanism includes a pin, a gear, a driven rack, and a driving rack. The pin is fixedly installed on the inner wall of the slide groove, the gear is rotatably installed on the pin, the driven rack is fixedly connected to the slider and meshes with the gear, and the driving rack is fixedly connected to the guide rod and meshes with the gear.

5. The pre-embedded conduit protection device according to claim 4, characterized in that, The driving rack is located above the pin, and the driven rack is located below the pin.

6. The pre-embedded conduit protection device according to claim 1, characterized in that, A rubber pad is fixedly installed on the side of the slider near the protective plug.

Citation Information

Patent Citations

  • Splicing type protection device for rows of pre-embedded wire pipes

    CN215990103U