A kind of anti-bending cable of building automation is threaded in conduit

Abstract

The utility model relates to the cable pipeline field especially, more particularly to a kind of anti-bending cable duct of building automatic control cable, including mounting block, spiral pipe body one and spiral pipe body two, the mounting block one side is equipped with spiral pipe body one, the spiral pipe body one side is fixed with connecting block one, the connecting block one side is equipped with connecting block two, the connecting block two one side is equipped with spiral pipe body two, the spiral pipe body two one side is equipped with connecting block three, the connecting block two, spiral pipe body two and the connecting block three one side are equipped with notch.This device is combined by modular design, realizes the directional segmented protection of pipeline connecting end and pipe body part, and notch structure allows the radial clamping installation of protection unit, greatly improves the construction efficiency of installing protective structure on the already laid pipeline, solves the problem that the existing pipeline connecting piece cannot consider head sealing connection and pipe body multi-point flexible protection, realizes the integrated control of quick positioning installation and anti-overbending.

Description

Technical Field

[0001] This utility model relates to the field of cable conduits, and in particular to a bend-resistant conduit for building automation cables. Background Technology

[0002] Cable conduits provide crucial bend protection for internal cables through their robust outer shell structure. They distribute external pressure, preventing sharp-angle bends when cables bend at corners, pass through walls, or are under pressure, effectively preventing internal metal fatigue, insulation damage, or signal transmission attenuation caused by excessive bending. The conduits also specify the cable's bending radius, ensuring it remains within safe limits and significantly improving the durability and stability of the wiring.

[0003] A search revealed patent publication number CN220022295U, which discloses a spring-loaded waterproof cable connector. The connector includes a main connecting seat with a compression fixing assembly installed inside. A compression cap is screwed to the upper end of the main connecting seat, and an anti-bending tube is installed at the upper end of the compression cap. In use, the cable passes sequentially through the threaded ring and the chamfered compression cavity, exiting through the anti-bending tube at the upper end of the threaded cap. Rotating the threaded cap causes it to descend, compressing the pressure ring. The pressure ring compresses the conical rubber sleeve and engages with the chamfered compression cavity, deforming the conical rubber sleeve and pressing it against the outer wall of the cable, thus fixing the cable and increasing the overall sealing performance. Compared to current cable connectors, this invention offers superior sealing and waterproofing. Furthermore, the use of the anti-bending tube, with its spring force, prevents excessive bending of the cable at the installation point, thus preventing damage.

[0004] While existing technologies can achieve certain cable conduit performance, they suffer from drawbacks: current conduit connectors cannot simultaneously address the issues of head sealing and multi-point flexible protection of the conduit body, nor can they achieve integrated control for rapid positioning and installation while preventing excessive bending. Therefore, we propose a bend-resistant conduit for building automation cables, which solves the aforementioned problems. Utility Model Content

[0005] The purpose of this utility model is to address the problems existing in the background technology by proposing a bend-resistant conduit for building automation cables.

[0006] The technical solution of this utility model: a bend-resistant conduit for building automation cables, comprising an installation block, a spiral tube body one, and a spiral tube body two. The installation block has a spiral tube body one on one side, a connecting block one is fixed on one side of the spiral tube body one, a connecting block two is provided on one side of the connecting block one, a spiral tube body two is provided on one side of the connecting block two, and a connecting block three is provided on one side of the spiral tube body two. A notch is provided on one side of each of the connecting block two, the spiral tube body two, and the connecting block three.

[0007] When using this device, the mounting block has an internal spiral groove on one side, which can be used to seal and rotate the external pipe. The elastic design of the spiral tube body one ensures that the bending of the pipe connection is reduced. The spiral tube body two is connected to the spiral groove by the thread. The spiral tube body two can be rotated to separate it, and then manually pushed to the position where the pipe needs bending protection. After releasing the hand, the limiting pin under the action of the spring will press the pipe surface, fixing the spiral tube body two in the protection position. The elastic effect of the spiral tube body two can also prevent the pipe from bending excessively. In addition, the notch can be used to directly detach the spiral tube body two and then snap it into the target position, realizing the quick installation of fixed-point pipe protection. This device has a modular design, which is convenient for directional protection of the head and body of the pipe, and has high practicality.

[0008] Preferably, the mounting block has a mounting plate on one side, and the inner wall of the mounting block and the connecting block has a threaded groove. The mounting plate provides a stable mounting base surface and enhances the connection strength with external equipment. The threaded groove on the inner wall realizes a sealed threaded connection with the pipe, ensuring the sealing reliability of the connection.

[0009] Preferably, the second connecting block has a protruding part on one side, and the outer wall of the protruding part is provided with thread. The thread design of the protruding part is matched with the thread groove to form a mechanical connection that can be quickly screwed in and separated, making the second spiral tube a functional module that can be independently disassembled, thus improving the flexibility of use.

[0010] Preferably, the connecting block three has mounting grooves on both sides, and limit pins are inserted into the mounting grooves. The mounting grooves provide precise guidance and accommodation space for the limit pins. Through the inserted limit pin structure, the spiral tube body two can be quickly locked and fixed at any position in the pipeline.

[0011] Preferably, the bottom of the limiting pin is provided with a cone head, and a spring is provided between the cap of the limiting pin and the bottom of the mounting groove. The cone head design can increase the contact stress with the pipe surface and prevent slippage; the spring provides a continuous preload force, so that the limiting pin can automatically press the pipe and achieve self-adaptive fixation without the need for additional tools.

[0012] Preferably, a handle is provided on one side of the limiting pin. The handle is used by the user to pull the limiting pin outward. The handle provides the operator with a clear point of force application, which makes it easy to overcome the spring force and pull the limiting pin by hand, realizing one-button quick release, and greatly simplifying the disassembly and position adjustment operation process.

[0013] Preferably, both the first and second spiral tubes are designed with elastic materials. Elastic materials give the tubes good flexibility and fatigue resistance, which can effectively limit the bending radius of the pipe and prevent excessive bending, as well as absorb vibration energy and improve the overall durability of the pipeline system.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] I. This utility model achieves the dual functions of pipe connection and bending protection through a combined structure of spiral tube body one and spiral tube body two. The mounting block has a spiral groove one inside, which allows for a sealed rotational connection with the external pipe, improving the reliability and sealing of the connection. Spiral tube body one is designed with elastic material, providing buffering and support when the pipe bends, effectively reducing bending stress concentration and extending the pipe's service life. Spiral tube body two is detachably connected to the threaded groove on connecting block two, achieving modular and quick assembly and disassembly, facilitating flexible adjustment of the protection position according to actual usage needs. Furthermore, connecting block three has a limiting pin structure inside, which, through spring preload, keeps the cone head tightly against the pipe surface, achieving rapid positioning and fixation, preventing displacement of the protection structure under pipe vibration or external force, and improving the overall adaptability and stability of the structure.

[0016] II. Building upon the first beneficial effect, this device further enhances the ease of operation and maintenance efficiency by employing a notch design and a limiting pin handle structure, enabling rapid installation and disassembly of the pipeline protection section. The notch structure allows the second spiral tube to be directly inserted into the target position from the side of the pipeline, completing installation without disassembling the entire pipeline system. This is particularly suitable for the later reinforcement and protection retrofitting of existing pipelines. The limiting pin features a conical head structure at its bottom, increasing friction with the pipeline surface and preventing slippage. Simultaneously, the handle design facilitates the user's outward pulling of the limiting pin, overcoming spring force for rapid release, further optimizing the assembly experience. Both the first and second spiral tubes are made of elastic materials, possessing excellent bending resistance and adapting to different pipe diameters and bending radii, expanding the device's applicability and engineering practicality.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] Figure 1 This is a three-dimensional perspective view of the present invention from a first angle;

[0019] Figure 2 This is a two-dimensional perspective view of the present invention.

[0020] Figure 3 This is a partial schematic diagram of the present invention;

[0021] Figure 4 For the present utility model Figure 3 Enlarged schematic diagram of structure A in the middle.

[0022] Figure label:

[0023] 1. Mounting block; 2. Mounting disc; 3. Threaded groove; 4. Spiral tube body one; 5. Threaded wire; 6. Spiral tube body two; 7. Notch; 8. Connecting block one; 9. Spring; 10. Connecting block two; 11. Connecting block three; 12. Limit pin; 13. Cone head; 14. Mounting groove; 15. Handle. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more readily understood, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0028] Example 1

[0029] Please see Figures 1-4 As shown, this embodiment is a bend-resistant conduit for building automation cables, including a mounting block 1, a spiral tube body 4, and a spiral tube body 6. The mounting block 1 has a spiral tube body 4 on one side, a connecting block 8 is fixed on one side of the spiral tube body 4, a connecting block 2 10 is provided on one side of the connecting block 1 8, a spiral tube body 6 is provided on one side of the connecting block 2 10, a connecting block 3 11 is provided on one side of the spiral tube body 2 6, and a notch 7 is provided on one side of the connecting block 2 10, the spiral tube body 2 6, and the connecting block 3 11.

[0030] When using this device, the mounting block 1 has a spiral groove on one side, which can seal and rotate the threaded groove 3 to connect with the external pipe. Then, the elastic design of the spiral tube body 4 ensures that the bending of the pipe connection is reduced. At this time, the spiral tube body 6 is connected to the threaded groove 3 by the thread 5. The spiral tube body 6 can be rotated to separate it, and then manually pushed to the position where the pipe needs to be bent for protection. After releasing the hand, the limiting pin 12 under the action of the spring 9 will press the pipe surface, so that the spiral tube body 6 is fixed in the protection position. The elastic effect of the spiral tube body 6 can also prevent the pipe from bending excessively. In addition, the notch 7 can be used to directly detach the spiral tube body 6 and then snap it into the target position, realizing the quick installation of fixed-point protection for the pipe. This device has a modular design, which is convenient for directional protection of the head and body of the pipe, and has high practicality.

[0031] Example 2

[0032] Please see Figures 1-4 As shown, this embodiment further includes, based on embodiment 1, an installation plate 2 on one side of the installation block 1, and threaded grooves 3 on the inner walls of the installation block 1 and the connecting block 8. The installation plate 2 provides a stable installation base surface and enhances the connection strength with external equipment. The threaded grooves 3 on the inner wall realize a sealed threaded connection with the pipe, ensuring the sealing reliability of the connection.

[0033] The connecting block 2 10 has a protruding part on one side, and the outer wall of the protruding part is provided with thread 5. The thread 5 of the protruding part is designed to cooperate with the thread groove 3 to form a mechanical connection that can be quickly screwed in and separated, making the spiral tube 2 6 an independently detachable functional module, which improves the flexibility of use.

[0034] The connecting block 3 11 has mounting grooves 14 on both sides. Limiting pins 12 are inserted into the mounting grooves 14. The mounting grooves 14 provide precise guidance and accommodation space for the limiting pins 12. Through the structure of the inserted limiting pins 12, the spiral tube 2 6 can be quickly locked and fixed at any position in the pipeline.

[0035] The bottom of the limiting pin 12 is provided with a cone head 13, and the cap of the limiting pin 12 is provided with a spring 9 between the bottom of the mounting groove 14. The cone head 13 is designed to increase the contact stress with the pipe surface and prevent slippage. The spring 9 provides a continuous preload force, so that the limiting pin 12 can automatically press the pipe and achieve self-adaptive fixation without the need for additional tools.

[0036] A handle 15 is provided on one side of the limiting pin 12. The handle 15 is used by the user to pull the limiting pin 12 outward. The handle 15 provides the operator with a clear point of force application, which makes it easy to overcome the force of the spring 9 and pull the limiting pin 12 by hand, realizing one-button quick release, which greatly simplifies the disassembly and position adjustment operation process.

[0037] Both spiral tube body 1 (4) and spiral tube body 2 (6) are designed with elastic materials. The elastic material gives the tube body good flexibility and fatigue resistance, which can effectively limit the bending radius of the pipe and prevent excessive bending, as well as absorb vibration energy and improve the overall durability of the pipeline system.

[0038] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A bend-resistant conduit for building automation cables, comprising a mounting block (1), a spiral tube body one (4), and a spiral tube body two (6), characterized in that: The mounting block (1) has a spiral tube body 1 (4) on one side, a connecting block 1 (8) is fixed on one side of the spiral tube body 1 (4), a connecting block 2 (10) is provided on one side of the connecting block 1 (8), a spiral tube body 2 (6) is provided on one side of the connecting block 2 (10), a connecting block 3 (11) is provided on one side of the spiral tube body 2 (6), and a notch (7) is provided on one side of the connecting block 2 (10), the spiral tube body 2 (6), and the connecting block 3 (11).

2. The anti-bending conduit for building automation cables according to claim 1, characterized in that: The mounting block (1) has a mounting plate (2) on one side, and the inner walls of the mounting block (1) and the connecting block (8) are provided with threaded grooves (3).

3. The anti-bending conduit for building automation cables according to claim 1, characterized in that: The connecting block 2 (10) has a protruding part on one side, and the outer wall of the protruding part is provided with thread (5).

4. The anti-bending conduit for building automation cables according to claim 1, characterized in that: The connecting block three (11) has mounting grooves (14) on both sides, and limit pins (12) are inserted into the mounting grooves (14).

5. The anti-bending conduit for building automation cables according to claim 4, characterized in that: The bottom of the limiting pin (12) is provided with a cone head (13), and a spring (9) is provided between the cap of the limiting pin (12) and the bottom of the mounting groove (14).

6. The anti-bending conduit for building automation cables according to claim 5, characterized in that: The limiting pin (12) is provided with a handle (15) on one side, and the handle (15) is used by the user to pull the limiting pin (12) outward.

7. The anti-bending conduit for building automation cables according to claim 1, characterized in that: Both the first spiral tube (4) and the second spiral tube (6) are designed with elastic materials.

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