A 360-degree quick-connect wire threading device

Abstract

This utility model relates to the field of fan assembly technology and discloses a 360-degree quick-connection device for threading wires. The vacuum cleaner includes a vacuum cleaner hose, the free end of which is sealed to an extension tube via a first sealing thread assembly. The front end of the extension tube is connected to a transparent sleeve via a second sealing thread assembly. The transparent sleeve includes a transparent outer tube, inside which two transparent inner tubes are coaxially fitted. A mesh baffle is sandwiched between the two transparent inner tubes. Both ends of the transparent outer tube extend beyond the two transparent inner tubes, forming sections without inner tube coverage. The front end of the transparent sleeve is connected to a receiving tube via a third sealing thread assembly. A bend is fixed to the receiving tube, and a hollow conical tube is fixed to the front end of the bend. A flexible sealing sleeve is fitted onto the outer wall of the hollow conical tube.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to an electrical wiring device, specifically a 360-degree quick wire threading and connection device. Background Technology

[0002] In the construction field, during the main concrete construction process, when conventionally pre-embedded pipelines are installed, a lead wire (or steel wire) is usually pre-installed within the pre-embedded pipeline. Later, during the decoration and finishing stages, one end of the main electrical wire is connected to the lead wire (or steel wire), and the main electrical wire is pulled through the pre-embedded pipeline by pulling the lead wire (or steel wire), ultimately exiting from the junction box to achieve the final purpose of connecting and plugging in the power supply. Alternatively, steel slings can be used directly for wiring, leading the wire, connecting the construction wire, and connecting it to the junction box to complete the operation.

[0003] Traditional construction methods present the following problems: 1. If the lead wire is not installed during the pre-buried pipeline stage; 2. Multiple pipelines often exist within the same building, with connections between them, making it easy to install the wrong lead wire; 3. Lead wires may tear or break during construction, or break while being threaded through the main electrical wire. Therefore, it is necessary to reconnect the lead wires and re-lay the construction line. Under traditional construction methods, secondary lead wire work requires the use of steel connectors in confined spaces (φ20 PVC pipes). However, the direction of the lead wire cannot be flexibly changed within the space. If there are debris (concrete blocks or nails) in the pipe, the steel connector cannot pass through (especially after turning within the pipe), thus making it impossible to effectively lay the steel wire rope for threading.

[0004] Furthermore, if there is liquid in the pipes, such as rainwater seepage, it will pose a safety hazard of leakage if it runs into the main electrical wires.

[0005] Based on the above problems, there is an urgent need for an efficient and convenient threading tool to improve threading efficiency. Summary of the Invention

[0006] In order to solve the problems of unreliable pre-embedding of lead wires and space limitations and obstruction of debris in the current traditional process, this utility model provides a 360-degree fast lead wire connection device.

[0007] This utility model is achieved using the following technical solution:

[0008] A 360-degree quick-connect wire threading device includes a vacuum cleaner, which includes a vacuum cleaner hose. The free end of the vacuum cleaner hose is sealed to an extension tube via a first sealing thread assembly. The front end of the extension tube is connected to a transparent sleeve via a second sealing thread assembly. The transparent sleeve includes a transparent outer tube, within which two transparent inner tubes are coaxially fitted. A mesh baffle is sandwiched between the two transparent inner tubes. Both ends of the transparent outer tube extend beyond the two transparent inner tubes, forming sections without inner tube coverage. The front end of the transparent sleeve is connected to a receiving tube via a third sealing thread assembly. A bend is fixed to the receiving tube, and a hollow conical tube is fixed to the front end of the bend. A flexible sealing sleeve is fitted onto the outer wall of the hollow conical tube.

[0009] In implementation, the system includes a vacuum cleaner, which includes a vacuum cleaner hose. The free end of the vacuum cleaner hose is sealed to an extension tube via a first sealing thread assembly. Specifically, the first sealing thread assembly includes a first internal thread sealing seat and a first external thread sealing head that cooperate with each other. The interference fit of the first internal thread sealing seat with the free end of the vacuum cleaner hose is an interference fit, and the interference fit of the first external thread sealing head with the rear end of the extension tube is an interference fit. The extension tube effectively extends the working length, and different lengths are suitable for different working environments. For example, when the distance between the operator and the pre-installed conduit is close, the first internal thread sealing seat connects to the second external thread sealing head to achieve...

[0010] The front end of the extension tube is connected to the transparent sleeve through the second sealing thread assembly; specifically, the second sealing thread assembly includes a second inner thread sealing seat and a second outer thread sealing head that cooperate with each other. The interference sealing end of the second inner thread sealing seat is interference-fitted with the front end of the extension tube, and the interference sealing end of the second outer thread sealing head is interference-fitted with the rear end of the transparent sleeve. The interference sealing end of the second outer thread sealing head is installed inside the transparent outer tube.

[0011] The transparent sleeve includes a transparent outer tube, inside which two transparent inner tubes are coaxially fitted. A mesh baffle is sandwiched between the two transparent inner tubes. The transparent sleeve serves as a visual indicator of successful insertion, while the wire mesh baffle prevents nails from being sucked into the vacuum cleaner, thus avoiding mechanical failure and acting as a foreign object interceptor. Both ends of the transparent outer tube extend beyond the two transparent inner tubes, forming sections without inner tube coverage. The length of these sections without inner tube coverage at both ends of the transparent outer tube is 5cm, providing ample space for the assembly of the transparent outer tube and for the connection of the second and third sealing threaded assemblies. The transparent inner tube includes a front transparent inner tube located at the front end of the mesh baffle and a rear transparent inner tube located at the rear end of the mesh baffle. The front transparent inner tube is longer than the rear transparent inner tube. A retaining ring is fitted around the outer end of both the front and rear transparent inner tubes away from the mesh baffle, and the outer edge of the retaining ring is fastened to the inner wall of the transparent outer tube.

[0012] The front end of the transparent sleeve is connected to the receiving tube via a third sealing thread assembly. Specifically, the third sealing thread assembly includes a third inner thread sealing seat and a third outer thread sealing head that cooperate with each other. The interference sealing end of the third inner thread sealing seat cooperates with the front end of the transparent sleeve, and the interference sealing end of the third outer thread sealing head cooperates with the rear end of the receiving tube. The interference sealing end of the third inner thread sealing seat is installed inside the transparent outer tube.

[0013] The receiving pipe is fixed with a bend, and the front end of the bend is fixed with a hollow conical pipe. The outer wall of the hollow conical pipe is fitted with a flexible sealing sleeve. The flexible sealing sleeve, together with the conical pipe, can effectively seal the connection of various pre-embedded pipes such as φ20mm, reducing suction loss caused by leakage.

[0014] The first, second, and third sealing thread assemblies all use standard parts, which can realize the concept of unitized assembly.

[0015] When using the vacuum cleaner, insert the tapered tube into the port of the pre-buried conduit to clean up debris in the pre-buried conduit. Turn on the vacuum cleaner, and the negative pressure airflow will suck the loose debris through the transparent sleeve and into the front transparent inner tube. When the debris is intercepted by the mesh baffle, the debris cleaning is completed.

[0016] During the wiring operation, two workers prepare on-site. One worker prepares the lead wire at one end of the junction box and inserts it approximately 10cm into the pre-embedded conduit within the box. The worker also straightens the lead wire to prevent insufficient length requiring re-laying. The other worker holds the device, inserts the free end into the pre-defined junction box, turns on the start / stop switch, and starts the vacuum cleaner. The vacuum cleaner provides suction, and when released, it pulls the lead wire through the junction box, through the pre-embedded conduit, and out of the other end of the junction box. The lead wire is then visible in the transparent sleeve. Once the lead wire is sucked in, it is intercepted by a mesh baffle. When the lead wire appears or is intercepted, the vacuum cleaner is turned off, the third sealing thread assembly is removed, and the lead wire is taken out of the transparent sleeve.

[0017] Compared with the prior art, this application has the following advantages:

[0018] This utility model provides a 360-degree rapid wire threading connection device. By using a vacuum cleaner to obtain sufficient suction, the wire is sucked from one end of the pre-buried conduit to the other. The negative pressure of the vacuum cleaner pulls the wire, which can quickly complete the threading and achieve 360° construction without blind spots. This device uses a visible transparent tube to make the end point of the wire visible. The tube is equipped with a mesh baffle, which displays the position of the wire in real time and visually confirms the success of the threading. At the same time, it effectively intercepts stones, nails and other debris, minimizing the risk of nails or other debris being sucked in during the wire-pulling process and breaking through the visible tube, causing injury.

[0019] This device effectively realizes modular design, adopts the concept of prefabricated combination, and uses individual units in combination. It is plug-and-play, and the easily damaged parts are easy to disassemble and assemble. All extension pipes, transparent viewing pipes and adapter devices can be reused after the pipeline installation is completed and the debris is completely disassembled and cleaned. Some parts with zero damage can be used in combination to achieve full utilization. Attached Figure Description

[0020] Figure 1 This is a schematic diagram showing the overall structure of the device.

[0021] Figure 2 This diagram illustrates the installation of the transparent sleeve.

[0022] Figure 3 A schematic diagram showing the structure of the transparent sleeve.

[0023] Figure 4 This is a schematic diagram showing the installation of a bend in a pipe.

[0024] Figure 5 This is a schematic diagram showing the actual use on site.

[0025] In the diagram: 1. Transparent outer tube; 2. Front transparent inner tube; 3. Rear transparent inner tube; 4. With mesh baffle; 5. Transparent sleeve; 6. Extension tube; 7. Bend; 8. Flexible sealing sleeve; 9. Receiving tube; 10. Hollow conical tube body; 11. Vacuum cleaner; 12. Vacuum cleaner hose; 13. First sealing threaded assembly; 14. Start / stop switch; 15. Second sealing threaded assembly; 16. Third sealing threaded assembly; 17. Concrete wall; 18. Junction box; 19. Reserved conduit; 20. Lead wire. Detailed Implementation

[0026] The present invention will now be described in conjunction with specific embodiments.

[0027] A 360-degree quick-connect wire threading device, such as Figures 1-5 As shown: The system includes a vacuum cleaner 11, which includes a vacuum cleaner hose 12. The free end of the vacuum cleaner hose 12 is sealed to an extension tube via a first sealing thread assembly 13. The extension tube is made of DN50 PU tubing and is 75cm long. Specifically, the first sealing thread assembly 13 includes a first internal thread sealing seat and a first external thread sealing head that cooperate with each other. The interference fit of the first internal thread sealing seat to the free end of the vacuum cleaner hose 12, and the interference fit of the first external thread sealing head to the rear end of the extension tube, effectively extends the working length. Different lengths are suitable for different working environments. For example, when the distance between the operator and the reserved conduit 19 is close, the first internal thread sealing seat connects to the second external thread sealing head to achieve...

[0028] The front end of the extension tube is connected to the transparent sleeve 5 through the second sealing thread assembly 15. Specifically, the second sealing thread assembly 15 includes a second inner thread sealing seat and a second outer thread sealing head that cooperate with each other. The interference sealing end of the second inner thread sealing seat is interference-fitted with the front end of the extension tube, and the interference sealing end of the second outer thread sealing head is interference-fitted with the rear end of the transparent sleeve 5. The interference sealing end of the second outer thread sealing head is installed inside the transparent outer tube 1.

[0029] The transparent sleeve 5 includes a transparent outer tube 1 with a diameter of 37mm. Two transparent inner tubes, each with a diameter of 30mm, are coaxially fitted inside the outer tube 1. A mesh baffle 4 is sandwiched between the two inner tubes. The transparent sleeve 5 serves as a visual indicator of successful insertion, while the wire mesh baffle prevents nails from being sucked into the vacuum cleaner 11, thus preventing mechanical malfunctions and acting as a foreign object interceptor. Both ends of the transparent outer tube 1 extend beyond the two inner tubes, forming sections without inner tube coverage, located at both ends of the transparent outer tube 1. The length of the section without inner tube coverage is 5cm, which provides sufficient space for the assembly of transparent outer tube 1, and also provides sufficient space for the connection of the second sealing thread assembly 15 and the third sealing thread assembly 16; the transparent inner tube includes a front transparent inner tube 2 located at the front end of the mesh baffle 4 and a rear transparent inner tube 3 located at the rear end of the mesh baffle 4. The length of the front transparent inner tube 2 is greater than that of the rear transparent inner tube 3. The ends of the front transparent inner tube 2 and the rear transparent inner tube 3 away from the mesh baffle 4 are fitted with fixing rings, and the outer edge of the fixing rings is clamped on the inner wall of the transparent outer tube 1.

[0030] The front end of the transparent sleeve 5 is connected to the receiving tube 9 via a third sealing thread assembly 16. Specifically, the third sealing thread assembly 16 includes a mating third internal thread sealing seat and a third external thread sealing head. The interference-fit sealing end of the third internal thread sealing seat mates with the front end of the transparent sleeve 5, and the interference-fit sealing end of the third external thread sealing head mates with the rear end of the receiving tube 9. The interference-fit sealing end of the third internal thread sealing seat is installed inside the transparent outer tube 1. The inner surface of the glass outer tube end is coated with a silane coupling agent layer and fixed by a dissimilar material hot-melt socket seal connection.

[0031] A bend 7 is fixedly connected to the receiving pipe 9. The bend 7 is 45° or 90° and is made of nylon. A hollow conical pipe body 10 is fixedly connected to the front end of the bend 7. A flexible sealing sleeve 8 is fitted on the outer wall of the hollow conical pipe body 10. The flexible sealing sleeve 8 is made of silicone or rubber. The flexible sealing sleeve 8, together with the conical pipe body, can effectively seal the connection of various pre-embedded pipes such as φ20mm, reducing the suction loss caused by leakage.

[0032] The first sealing thread assembly 13, the second sealing thread assembly 15, and the third sealing thread assembly 16 all use standard parts, which can realize the concept of unitized assembly.

[0033] When using the vacuum cleaner, to clean the debris in the pre-embedded conduit 19, insert the tapered tube into the port of the pre-embedded conduit, turn on the vacuum cleaner 11, and the negative pressure airflow will suck the loose debris through the transparent sleeve 5 and into the front transparent inner tube 2. When the debris is intercepted by the mesh baffle 4, the debris cleaning is completed.

[0034] During the wiring operation, the construction site is prepared by two workers. One worker prepares the lead wire 20 at one end of the junction box 18 and inserts it about 10cm into the pre-embedded conduit 19 within the junction box 18. The worker also straightens the lead wire 20 on-site to avoid insufficient length requiring re-laying. The other worker holds the device and inserts the free end into the pre-determined junction box 18. The start / stop switch 14 is turned on, and the vacuum cleaner 11 is activated. The vacuum cleaner 11 provides suction, and when the suction is released, the lead wire passes through the junction box 18, through the pre-embedded conduit 19, and out of the other end of the junction box 18. Finally, it is displayed in the transparent sleeve 5. After the lead wire 20 is sucked in, it is intercepted by the mesh baffle 4. When it appears or is intercepted, the vacuum cleaner 11 is turned off, the third sealing thread assembly 16 is removed, and the lead wire 20 is taken out from the transparent sleeve 5.

[0035] The scope of protection claimed by this utility model is not limited to the specific embodiments described above. Moreover, for those skilled in the art, this utility model can have various modifications and alterations. Any modifications, improvements, and equivalent substitutions made within the concept and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A 360 degree quick poke-in wire connection device, comprising a vacuum cleaner (11), said vacuum cleaner (11) comprising a vacuum cleaner hose (12), characterized in that: The free end of the vacuum cleaner hose (12) is sealed and connected to the extension tube through the first sealing thread assembly (13), and the front end of the extension tube is connected to the transparent sleeve (5) through the second sealing thread assembly (15). The transparent sleeve (5) includes a transparent outer tube (1), and two transparent inner tubes are coaxially fitted inside the transparent outer tube (1). A mesh baffle (4) is sandwiched between the two transparent inner tubes. The two ends of the transparent outer tube (1) extend beyond the two transparent inner tubes to form a section without inner tube coverage. The front end of the transparent sleeve (5) is connected to the receiving pipe (9) through the third sealing thread assembly (16). A bend (7) is fixed on the receiving pipe (9). A hollow conical tube (10) is fixed to the front end of the bend (7). A flexible sealing sleeve (8) is fitted on the outer wall of the hollow conical tube (10).

2. A 360 degree quick poke-in wire connection device as claimed in claim 1, wherein: The first sealing thread assembly (13) includes a first inner thread sealing seat and a first outer thread sealing head that cooperate with each other. The interference sealing end of the first inner thread sealing seat is interference-fitted with the free end of the vacuum cleaner hose (12), and the interference sealing end of the first outer thread sealing head is interference-fitted with the rear end of the extension tube.

3. A 360 degree quick poke-in wire connection device as claimed in claim 1, wherein: The second sealing thread assembly (15) includes a second inner thread sealing seat and a second outer thread sealing head that cooperate with each other. The interference sealing end of the second inner thread sealing seat is interference-fitted with the front end of the extension tube, and the interference sealing end of the second outer thread sealing head is interference-fitted with the rear end of the transparent sleeve (5).

4. A 360 degree quick poke-in wire connection device as claimed in claim 3, wherein: The interference-fit sealing end of the second external thread sealing head is installed inside the transparent outer tube (1).

5. A 360 degree quick poke-in wire connection device as claimed in claim 1, wherein: The third sealing thread assembly (16) includes a third inner thread sealing seat and a third outer thread sealing head that cooperate with each other. The interference sealing end of the third inner thread sealing seat cooperates with the front end of the transparent sleeve (5), and the interference sealing end of the third outer thread sealing head cooperates with the rear end of the receiving pipe (9).

6. A 360 degree quick poke-in wire connection device as claimed in claim 5, wherein: The interference-fit sealing end of the third inner thread sealing seat is installed inside the transparent outer tube (1).

7. A 360 degree quick poke-in wire connection device as claimed in claim 1, wherein: The transparent inner tube includes a front transparent inner tube (2) located at the front end of the mesh baffle (4) and a rear transparent inner tube (3) located at the rear end of the mesh baffle (4). The length of the front transparent inner tube (2) is greater than that of the rear transparent inner tube (3). A fixing ring is fitted on the outer side of the front transparent inner tube (2) and the rear transparent inner tube (3) away from the mesh baffle (4). The outer edge of the fixing ring is clamped on the inner wall of the transparent outer tube (1).

8. The adaptable 360 degree quick poke-in wire connection device of claim 1, wherein: The length of the section without inner tube coverage at both ends of the transparent outer tube (1) is 5cm.

9. The adaptable 360 degree quick poke-in wire connection device of claim 1, wherein: When the operator is close to the reserved conduit (19), the first inner thread sealing seat is connected to the second outer thread sealing head.

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