Quick connecting pipe fitting for building fire-fighting pipeline

By designing quick-connect fittings for building fire protection pipelines, and utilizing a combination of threads and torsion sleeves, tool-free quick connection and secondary reinforcement are achieved, solving the problems of low installation efficiency and poor safety in existing technologies, and improving installation efficiency and safety.

CN223754884UActive Publication Date: 2026-01-02SHANDONG JUJIANG WHOLE PROCESS PROJECT MANAGEMENT CO LTD
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Patent Information

Application Number
CN202520570378.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-28
Publication Date
2026-01-02
Estimated Expiration
2035-03-28

AI Technical Summary

Technical Problem

The installation of fire protection pipes in existing buildings requires the use of tools to tighten screws and nuts, resulting in low installation efficiency and the joints being prone to loosening after long-term use, affecting safety.

Method used

The quick-connect fittings for building fire protection pipelines are adopted. The design of threads and torsion sleeves enables tool-free quick connection. The combination of reinforcement structure and positioning sleeve provides secondary reinforcement to improve safety.

Benefits of technology

It enables quick pipe connection without tools, improving installation efficiency, and ensures the stability and safety of the connection through a reinforced structure, avoiding the problem of loose joints caused by height differences.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of fire-fighting pipeline installation, and discloses a building fire-fighting pipeline quick connection pipe fitting which comprises an installation pipe, a first thread is arranged on the left side of the outer wall of the installation pipe, a second thread is arranged on the right side of the outer wall of the installation pipe, and an isolation sleeve is fixedly connected to the middle of the outer wall of the installation pipe. Twisting sleeves are arranged on the outer walls of the second threads and the first threads, positioning sleeves are arranged on the sides, away from each other, of the two twisting sleeves, a plurality of fixing blocks are fixedly connected to the sides, away from each other, of the mounting pipes, second rotating shafts are rotationally connected between the adjacent fixing blocks, and rotating plates are fixedly connected to the outer walls of the second rotating shafts. According to the utility model, after the connecting pipe is inserted to be attached to the mounting pipe, the connecting pipe moves to extrude the mounting pipe, and the C-shaped plate is clamped, so that the purpose of quick connection without the help of the outside is achieved, the practicability is improved, and the mounting efficiency is accelerated.
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Description

TECHNICAL FIELD

[0001] The utility model relates to fire fighting pipeline installation technical field especially, relate to building fire fighting pipeline quick -witted connecting pipe fitting. BACKGROUND

[0002] Building fire fighting pipeline is the pipeline in building for fire fighting, its design, installation and maintenance are all for ensuring that water source can be provided quickly and effectively when fire occurs to support fire extinguishing and rescue work, it is mainly divided into fire hydrant water supply device for providing water source through fire hydrant and fire fighting water supply pipeline, automatic water spray fire extinguishing device for detecting fire and starting water spray, and other fixed fire extinguishing device for dry powder fire extinguishing and halogenated alkane fire extinguishing according to the kind of fire extinguishing agent and fire extinguishing mode, especially indispensable safety facility in building, its design and maintenance need to strictly abide by relevant norms to ensure that water source can be provided effectively when fire occurs to guarantee personnel life and property safety.

[0003] Building fire fighting pipeline needs to use connecting pipe fitting when installing, connecting pipe fitting is the key assembly for connecting pipeline, valve and equipment component in pipeline, it can be divided into flange connection through flange and bolt to connect pipeline together, welding connection through welding technology to connect pipeline and pipe fitting together, and pressure connection of clamp connection and O type ring connection, but the existing building fire fighting pipeline needs to use tool when installing through connecting pipe fitting, twists screw and nut on it, leads to installation efficiency reduction, practicality decline, and after installation is completed, if the height difference of pipeline on both sides is different, the joint will be extruded loose after long-term use, leads to safety reduction, practicality decline. UTILITY MODEL CONTENTS

[0004] In order to make up for above insufficient, the utility model provides building fire fighting pipeline quick -witted connecting pipe fitting, aims at improving the problem of building fire fighting pipeline in prior art when installing through connecting pipe fitting, needing to use tool, twisting screw and nut on it, leading to installation efficiency reduction, practicality decline.

[0005] In order to achieve the above object, the utility model discloses the following technical scheme: building fire protection pipeline quick -connecting pipe fitting, including installation pipe, the outer wall left side of installation pipe is equipped with thread no.

[0006] As a further description of the above technical scheme:

[0007] The reinforcing structure includes a fixed rod, the bottom of the fixed rod is fixedly connected with the outer wall of the positioning sleeve, the inner wall of the fixed rod is slidably connected with a sliding rod, the inner wall of the sliding rod is threadedly connected with a screw no.

[0008] As a further description of the above technical scheme:

[0009] The outer wall of the screw no.

[0010] As a further description of the above technical scheme:

[0011] The inner wall of the rotating sleeve is fixedly connected with a rubber pad no.

[0012] As a further description of the above technical scheme:

[0013] The outer wall of the positioning sleeve is fixedly connected with a nameplate near the edge, and the outer wall of the twisting sleeve is fixedly connected with an antiskid sleeve.

[0014] As a further description of the above technical scheme:

[0015] The outer wall of the isolating sleeve is fixedly connected with a C-shaped plate, and the inner wall of the C-shaped plate is threadedly connected with a plurality of screw no.

[0016] As a further description of the above technical scheme:

[0017] The inner wall of the installation pipe is slidably connected with a connecting pipe, and the inner wall of the installation pipe is fixedly connected with a sealing ring near the edge.

[0018] As a further description of the above technical solutions:

[0019] The inner side of the rotating plate is fixedly connected with a rubber pad two, and the outer wall of the rotating plate is attached to the inner wall of the positioning sleeve.

[0020] The utility model has the advantages of the following:

[0021] 1. In the utility model, after the connecting pipe is inserted into the mounting pipe, the rotating sleeve is twisted along the thread two and the thread one, so that the positioning sleeve can be moved on the outer wall of the mounting pipe, until the rotating plate is sleeved in the mounting pipe, and the mounting pipe is extruded during the movement, so that the mounting pipe can be rotated along the rotating shaft two, the C-shaped plate is clamped, the purpose of quick connection without external assistance is achieved, the practicability is improved, and the installation efficiency is improved.

[0022] 2. In the utility model, the sliding rod and the rotating sleeve connected with the sliding rod are pulled out to a suitable position by twisting the screw one, then the rotating sleeve at the bottom is rotated along the rotating shaft one, so that the upper and lower rotating sleeves are closed, and then the mounting plate is fixed by twisting the screw two, so that the purpose of secondary reinforcement of the installation is achieved, the safety and practicability are improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 The utility model provides a front side perspective drawing of building fire protection pipeline quick connecting pipe fitting;

[0024] Figure 2 The utility model provides a local structure schematic view of building fire protection pipeline quick connecting pipe fitting;

[0025] Figure 3 The utility model provides a local structure split view of building fire protection pipeline quick connecting pipe fitting;

[0026] Figure 4 The utility model provides a rotating plate local structure display view of building fire protection pipeline quick connecting pipe fitting;

[0027] Figure 5 The utility model provides a mounting plate local structure display view of building fire protection pipeline quick connecting pipe fitting.

[0028] LEGEND:

[0029] 1, installation pipe; 2, reinforcing structure; 201, fixed rod; 202, screw one; 203, sliding rod; 204, rotating sleeve; 205, rotating shaft one; 206, screw two; 207, mounting plate; 3, twisting sleeve; 4, isolation sleeve; 5, positioning sleeve; 6, thread one; 7, rotating plate; 8, fixed block; 9, rotating shaft two; 10, thread two; 11, sealing ring; 12, gasket; 13, rubber pad one; 14, nameplate; 15, connecting pipe; 16, C-shaped plate; 17, screw three; 18, anti-skid sleeve; 19, rubber pad two. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0031] Please refer to the drawings in the embodiments of the utility model Figure 1 - the drawings in the embodiments of the utility model Figure 3 An embodiment provided by the utility model: building fire-fighting pipeline quick connecting pipe fitting, including installation pipe 1, the outer wall left side of installation pipe 1 is equipped with thread one 6, the outer wall right side of installation pipe 1 is equipped with thread two 10, thread one 6 and thread two 10 are used to make the structure can move along it, the outer wall middle part of installation pipe 1 is fixedly connected with isolation sleeve 4, the outer wall of thread two 10 and thread one 6 is provided with twisting sleeve 3, isolation sleeve 4 is used to isolate two twisting sleeves 3, the side far away from each other of two twisting sleeves 3 is provided with positioning sleeve 5, the side far away from each other of installation pipe 1 is fixedly connected with a plurality of fixed blocks 8, twisting sleeve 3 can be along thread one 6 and thread two 10 screw connection two and slide with twisting, the adjacent between fixed block 8 is rotatably connected with rotating shaft two 9, the outer wall of rotating shaft two 9 is fixedly connected with rotating plate 7, the outer wall of positioning sleeve 5 upper and lower side is fixedly connected with reinforcing structure 2, reinforcing structure 2 is used to support butt joint after installation, rotating shaft two 9 is used to support rotating plate 7 rotation;

[0032] Specifically, with the twisting of the twisting sleeve 3 on the outer wall of the thread one 6 and the thread two 10, the twisting sleeve 3 can move along the thread one 6 and the thread two 10, thereby pushing the positioning sleeve 5 to move to both sides, and then the positioning sleeve 5 can sleeve the plurality of rotating plates 7 therein, so that the larger the range of the rotating plates 7 sleeved in the positioning sleeve 5 by the positioning sleeve 5, the greater the rotating angle of the rotating plates 7 pressed along the rotating shaft two 9, thereby clamping the pipeline.

[0033] Please refer to the drawings in the embodiments of the utility model Figure 2 - the drawings in the embodiments of the utility model Figure 4The reinforcing structure 2 comprises a fixed rod 201, the bottom of the fixed rod 201 is fixedly connected with the outer wall of the positioning sleeve 5, the inner wall of the fixed rod 201 is slidably connected with a sliding rod 203, the fixed rod 201 is used for guiding the sliding expansion of the sliding rod 203, the inner wall of the sliding rod 203 is threadedly connected with a screw one 202, the side away from the sliding rod 203 is fixedly connected with a rotating sleeve 204, the bottom rear side of the rotating sleeve 204 is rotatably connected with a rotating shaft one 205, the screw one 202 is used for fixing the sliding rod 203 and limiting it, preventing it from sliding at will, the bottom front side of the rotating sleeve 204 is fixedly connected with a mounting plate 207, the inner wall of the mounting plate 207 is threadedly connected with a screw two 206, the screw two 206 is used for fixing a plurality of mounting plates 207;

[0034] Specifically, by rotating the screw one 202, the extension length of the sliding rod 203 in the fixed rod 201 can be adjusted, the operator can conveniently adjust the position of the sliding rod 203 according to the actual pipeline installation position and the support force required at the joint, so as to achieve the best reinforcing effect, and by tightening and loosening the screw two 206, the fitting degree and pressure of the rotating sleeve 204 with the surface of the pipeline can be adjusted.

[0035] Please refer to the accompanying drawings Figure 2 The accompanying drawings Figure 4 The outer wall of the isolation sleeve 4 is fixedly connected with a C-shaped plate 16, the inner wall of the C-shaped plate 16 is threadedly connected with a plurality of screw threes 17, the screw threes 17 are used for fixing the C-shaped plate 16 at the required position, the outer wall of the screw two 206 is provided with a gasket 12, the inner wall of the gasket 12 is slidably connected with the outer wall of the screw two 206, the C-shaped plate 16 is used for fixing the overall structure at the required position when needed, the outer wall of the positioning sleeve 5 is fixedly connected with a nameplate 14 near the edge, the outer wall of the twisting sleeve 3 is fixedly connected with an anti-skid sleeve 18, and the nameplate 14 is used for facilitating the user to understand the related information of the device;

[0036] Specifically, the anti-skid sleeve 18 increases the friction between the hands of the operator and the twisting sleeve 3, ensures that the operator can stably apply force when rotating the twisting sleeve 3, and effectively avoids the phenomenon of slipping, the nameplate 14 can help the installer to quickly and accurately identify and use the pipe fitting on the construction site, improve the work efficiency, and ensure the normal operation and maintenance management of the entire fire pipeline system, and the gasket 12 can uniformly disperse the pressure applied by the screw two 206, so as to avoid damaging the surface of the connecting part due to too concentrated pressure.

[0037] Please refer to the accompanying drawings Figure 3 The accompanying drawings Figure 5The inner wall of the mounting pipe 1 is slidably connected with a connecting pipe 15, the inner wall of the mounting pipe 1 is fixedly connected with a sealing ring 11 near the edge, the sealing ring 11 is used for improving the sealing performance of the whole structure, the inner wall of the rotating sleeve 204 is fixedly connected with a rubber pad 1 3, the plurality of fixed rods 201 are fixedly connected to the same horizontal height, the rubber pad 1 3 is used for preventing the rotating sleeve 204 from damaging the structure attached thereto, the inward side of the rotating plate 7 is fixedly connected with a rubber pad 2 19, the outer wall of the rotating plate 7 is attached to the inner wall of the positioning sleeve 5, and the rubber pad 2 19 is used for protecting the connecting pipe 15.

[0038] Specifically, the sealing ring 11 can tightly attach the gap between the mounting pipe 1 and the connecting pipe 15 when they are connected, effectively preventing the fluid in the fire pipe from leaking, the rubber pad 1 3 mainly functions to buffer and absorb the shock when the rotating sleeve 204 contacts the relevant components, and the rubber pad 2 19 can increase the friction between the rotating plate 7 and the outer wall of the connecting pipe 15, so that the rotating plate 7 is more stably attached to the pipe, preventing displacement when the pipe is subjected to vibration or fluid impact.

[0039] Working principle: when two fire pipes need to be quickly connected, the two pipes are respectively inserted into the annulus formed by the rotating plate 7 and are attached to the two ends of the mounting pipe 1, the rotating sleeve 3 is twisted to enable it to rotate along the thread 2 and the thread 1, thereby pushing the positioning sleeves 5 on both sides to move outward, gradually extruding the rotating plates 7 to enable them to rotate along the rotating shaft 2, and then clamping the pipes, when the rotating sleeve 3 cannot be twisted, the connection is completed.

[0040] When the connection is completed and long-term use is required, the screw 1 202 is first twisted outward, so that the sliding rod 203 can slide in the fixed rod 201, thereby pulling the rotating sleeve 204 outward, when the rotating sleeve 204 reaches the appropriate position, the rotating sleeve 204 at the bottom is rotated along the rotating shaft 1 205 to be attached to the rotating sleeve 204 at the top, and finally the screw 2 206 is twisted to fix the two mounting plates 207, thereby clamping the connecting pipes 15 between the rotating sleeves 204, when the two connecting pipes 15 are installed at different heights, they can be supported to avoid pipe joint extrusion and fracture caused by the height difference.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present application and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement of some technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. Quick coupling pipe fitting for building fire protection pipes, comprising a mounting pipe (1), characterized in that: The outer wall of the installation pipe (1) is provided with a thread one (6) on the left side, the outer wall of the installation pipe (1) is provided with a thread two (10) on the right side, the outer wall of the installation pipe (1) is fixedly connected with an isolation sleeve (4) in the middle, the outer walls of the thread two (10) and the thread one (6) are provided with a twist sleeve (3), the far sides of the two twist sleeves (3) are provided with a positioning sleeve (5), the far sides of the installation pipe (1) are fixedly connected with a plurality of fixed blocks (8), the adjacent fixed blocks (8) are rotatably connected with a rotating shaft two (9), the outer wall of the rotating shaft two (9) is fixedly connected with a rotating plate (7), the outer walls of the positioning sleeve (5) are fixedly connected with a reinforcing structure (2) on the upper side and the lower side, and the reinforcing structure (2) is used for supporting the butt joint after installation.

2. The quick connect fitting for fire protection piping in buildings according to claim 1, characterized in that: The reinforcing structure (2) comprises a fixed rod (201), the bottom of the fixed rod (201) is fixedly connected with the outer wall of the positioning sleeve (5), the inner wall of the fixed rod (201) is slidably connected with a sliding rod (203), the inner wall of the sliding rod (203) is threadedly connected with a screw one (202), the far side of the sliding rod (203) is fixedly connected with a rotating sleeve (204), the bottom rear side of the rotating sleeve (204) is rotatably connected with a rotating shaft one (205), the bottom front side of the rotating sleeve (204) is fixedly connected with a mounting plate (207), and the inner wall of the mounting plate (207) is threadedly connected with a screw two (206).

3. The quick connect fitting for fire protection piping of a building according to claim 2, wherein: The outer wall of the screw two (206) is provided with a gasket (12), and the inner wall of the gasket (12) is slidably connected with the outer wall of the screw two (206).

4. The quick connect fitting for fire protection piping in buildings of claim 2, wherein: The inner wall of the rotating sleeve (204) is fixedly connected with a rubber pad one (13), and the plurality of fixed rods (201) are fixedly connected at the same horizontal height.

5. The quick connect fitting for fire protection piping in buildings of claim 1 wherein: The outer wall of the positioning sleeve (5) is fixedly connected with a nameplate (14) near the edge, and the outer wall of the twist sleeve (3) is fixedly connected with an anti-skid sleeve (18).

6. The quick connect fitting for fire protection piping in buildings of claim 1, wherein: The outer wall of the isolation sleeve (4) is fixedly connected with a C-shaped plate (16), and the inner wall of the C-shaped plate (16) is threadedly connected with a plurality of screw threes (17).

7. The quick connect fitting for fire protection piping in buildings of claim 1, wherein: The inner wall of the installation pipe (1) is slidably connected with a connecting pipe (15), and the inner wall of the installation pipe (1) is fixedly connected with a sealing ring (11) near the edge.

8. The quick connect fitting for fire protection piping in buildings of claim 1, wherein: The inward side of the rotating plate (7) is fixedly connected with a rubber pad two (19), and the outer wall of the rotating plate (7) is attached to the inner wall of the positioning sleeve (5).