Quick coupling connector of fire-fighting pipeline

Abstract

The utility model discloses a quick coupling connector of a fire-fighting pipeline, and belongs to the technical field of fire-fighting pipeline connectors. Comprising a connecting part I and a connecting part II, the connecting part I comprises a connecting sleeve, a communicated inserting pipe is fixedly inserted into the connecting sleeve, limiting blocks are symmetrically and fixedly arranged on the outer wall of the end, away from the connecting sleeve, of the inserting pipe, the end face, away from the inserting pipe, of the connecting sleeve is fixedly connected with a communicated first fixing pipe, and the outer wall of the connecting sleeve is fixedly connected with a first threaded ring; and threads are arranged on the outer wall. The connecting part II comprises a fixing sleeve, and one end of the fixing sleeve is right opposite to the insertion pipe. The other end of the fixing sleeve is fixedly connected with a second fixing pipe communicated with the fixing sleeve, the outer wall of the fixing sleeve is fixedly connected with a second threaded ring, the outer wall of the second threaded ring is provided with threads, the outer wall of the second threaded ring is rotatably connected with a sealing threaded sleeve, the inner wall of the fixing sleeve is symmetrically provided with inserting grooves, and one side of the interior of each inserting groove is provided with a limiting groove. The limiting blocks are in sliding fit with the inserting grooves and the limiting grooves. The device is easy to install and very convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of fire-fighting pipeline connectors, in particular to a quick joint connector for fire-fighting pipelines. Background Art

[0002] The quick-connect connectors for firefighting pipes are devices used to quickly connect and disconnect firefighting water pipes. They are often used in firefighting systems to quickly provide water in case of fire or emergency. These connectors have reliable sealing performance and high pressure resistance, and can withstand high flow rates of water. They are simple in design and easy to operate, and can quickly connect or disconnect firefighting water pipes, providing convenience and efficient firefighting emergency response capabilities.

[0003] The document with the prior art announcement number CN219221590U provides a quick connection mechanism for fire-fighting pipe installation. The device pulls the first pipe and the second pipe so that the second rotating disk drives the connecting pipe to enter the interior of the first pipe, thereby enabling the first pipe and the second pipe to be quickly connected. When the sliding plate on the second rotating disk enters the interior of the rotating groove, the second rotating disk is rotated so that the sliding plate enters the interior of the sliding groove. The reset spring resets the limit plate to move to one side of the sliding plate, thereby fixing the sliding plate, thereby limiting the connection pipe after connection, thereby avoiding the inability of the existing connecting mechanism to position after connection, resulting in a loose connection when the water pressure is high.

[0004] In view of the above-mentioned related technologies, the inventor believes that when leakage occurs inside the connection, the middle of the connection cannot be sealed, which easily leads to a drop in the working pressure of the high-pressure water gun connected to the pipeline, making the water spray pressure unstable or reduced. In view of this, it is necessary to improve the existing quick connection mechanism for fire pipe installation to solve the above problems. Summary of the invention

[0005] In order to solve the problem that when leakage occurs inside the connection of the fire-fighting pipe connecting mechanism proposed in the background technology, the middle of the connection cannot be sealed, which easily leads to a decrease in the working pressure of the high-pressure water gun connected to the pipe, making the water spraying pressure unstable or reduced, the utility model provides a novel quick-connect connector for fire-fighting pipes with good sealing performance.

[0006] The utility model is realized by the following technical scheme: a quick connector for fire fighting pipe, comprising a connection part I and a connection part II, wherein the connection part I comprises a connection sleeve, wherein a connected intubation is fixedly inserted inside the connection sleeve, wherein a stopper is symmetrically fixedly provided on the outer wall of the end of the intubation away from the connection sleeve, wherein a first connected fixed pipe is fixedly connected to the end face of the connection sleeve away from the intubation, wherein a first threaded ring is fixedly connected to the outer wall of the connection sleeve, wherein a thread is provided on the outer wall of the first threaded ring. The connection part II comprises a fixed sleeve, wherein one end of the fixed sleeve is directly opposite to the intubation; wherein the other end of the fixed sleeve is fixedly connected to a connected second fixed pipe, wherein a second threaded ring is fixedly connected to the outer wall of the fixed sleeve, wherein a thread is provided on the outer wall of the second threaded ring, wherein the direction and density of the threads opened on the first threaded ring and the second threaded ring are consistent; wherein the outer wall of the second threaded ring is rotatably connected to a sealing threaded sleeve, wherein the sealing threaded sleeve also meets the requirements of threaded connection with the first threaded ring, wherein a slot is symmetrically provided on the inner wall of the fixed sleeve, wherein a stopper is provided on one side of the inner wall of the slot, wherein the stopper is slidably matched with the slot and the stopper.

[0007] The utility model is designed to be a quick connector for fire-fighting pipes, including a connection part I and a connection part II, which are connected as a whole when in use, so as to achieve the purpose of sealing connection. The connection part I includes a connection sleeve, and a connected insert is fixedly inserted inside the connection sleeve, and the insert is used to connect with the connection part II. The outer wall of the end of the insert away from the connection sleeve is symmetrically fixed with a limit block, and the end face of the connection sleeve away from the insert is fixedly connected with a connected first fixed pipe, and the first fixed pipe is used to connect with an external water pipeline. The outer wall of the connection sleeve is fixedly connected with a first threaded ring, and the first threaded ring is used to abut against the second threaded ring, so that the sealing threaded sleeve can also be screwed on the first threaded ring. The outer wall of the first threaded ring is provided with threads. The connection part II includes a fixed sleeve, and one end of the fixed sleeve is directly opposite to the insert; the other end of the fixed sleeve is fixedly connected with a connected second fixed pipe, and the second fixed pipe is also used for connecting with an external water pipeline. The outer wall of the fixed sleeve is fixedly connected to a second threaded ring, and a thread is arranged on the outer wall of the second threaded ring. The direction and density of the threads on the first threaded ring and the second threaded ring are consistent; the outer wall of the second threaded ring is rotatably connected to a sealing threaded sleeve, and the sealing threaded sleeve also meets the requirements for threaded connection with the first threaded ring. The inner wall of the fixed sleeve is symmetrically provided with slots, and a limiting groove is provided on one side inside the slot. The limiting block is slidably matched with the slot and the limiting groove. After the limiting block is inserted into the slot, the limiting block can be stuck in the limiting groove through the relative rotation of the connecting part I and the connecting part II. The specific operation of the utility model is as follows: the insert tube inside the connecting sleeve is inserted into the inside of the fixing sleeve, and the limiting block on the insert tube slides in the slot on the inner wall of the fixing sleeve. When the limiting block moves to the inside of the limiting slot, the connecting sleeve is rotated. The connecting sleeve rotates to drive the insert tube and the limiting block to rotate at the same time. The limiting block rotates to enter the other side of the limiting slot. The limiting slot limits the insert tube and the limiting block. Under the impact of high-pressure water flow, the insert tube cannot be separated from the fixing sleeve, which plays a good fixing role. Secondly, when water leakage occurs inside the connection, the cooperation between the sealing threaded sleeve and the first threaded ring will not cause the pressure of the connected high-pressure water gun to be unstable or reduced.

[0008] Preferably, the end faces of the connecting sleeve and the fixing sleeve are provided with an installation groove, and a sealing ring is installed inside the installation groove. The sealing ring on the connecting sleeve is tightly against the fixing sleeve, and the sealing ring has good elasticity, so that the limit block is tightly against the inner wall of the limit groove to prevent the device from loosening.

[0009] Preferably, the outer wall of the first fixed tube is fixedly connected with a first fixed ring, and the first fixed ring is also fixedly connected with the connecting sleeve. Further, the outer wall of the second fixed tube is fixedly connected with a second fixed ring, and the second fixed ring is also fixedly connected with the fixing sleeve. Furthermore, the outer wall of the sealing threaded sleeve is fixedly provided with a friction sleeve. The sealing threaded sleeve on the second threaded ring is rotated, and the friction sleeve is installed to increase the friction force when the sealing threaded sleeve is rotated, and prevent slipping when the sealing threaded sleeve is rotated. One end of the sealing threaded sleeve is threadedly installed with the first threaded ring on the connecting sleeve. The device is easy to install and has a good sealing effect. Even if there is water leakage, it will not affect the water pressure of the high-pressure water gun.

[0010] Compared with the prior art, the utility model has the following beneficial effects: the utility model provides a quick connector for fire-fighting pipes, by providing a slot and a limit slot on the inner wall of the fixing sleeve, inserting the insert pipe inside the connecting sleeve into the interior of the fixing sleeve, and the limit block on the insert pipe slides in the slot on the inner wall of the fixing sleeve. When the limit block moves to the interior of the limit slot and the sealing ring on the connecting sleeve is tightly attached to the fixing sleeve, the sealing ring has good elasticity, so that the limit block is tightly attached to the inner wall of the limit slot to prevent the device from loosening, and the connecting sleeve is rotated, and the rotation of the connecting sleeve drives the insert pipe and the limit block at the same time Rotate, the limit block rotates into the other side of the limit groove, the limit groove limits the insert tube and the limit block, under the impact of high-pressure water flow, the insert tube cannot be separated from the fixing sleeve, which plays a good fixing effect, secondly, when water leakage occurs inside the connection, through the cooperation of the sealing threaded sleeve and the first threaded circle, the pressure of the connected high-pressure water gun will not be unstable or reduced, finally, rotate the sealing threaded sleeve on the second threaded circle, and rotate one end of the sealing threaded sleeve to install it on the first threaded circle on the connecting sleeve. The device is simple to install and very convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the assembled specific embodiment of the utility model.

[0012] Figure 2 It is a schematic diagram of the structure of a specific embodiment of the utility model when it is opened.

[0013] Figure 3 It is a structural schematic diagram of the fixing sleeve of the utility model.

[0014] The markings in the figure are as follows: 1-connecting sleeve, 2-insertion tube, 3-limiting block, 4-installing groove, 5-sealing ring, 6-first fixed tube, 7-first fixed ring, 8-first threaded ring, 9-fixing sleeve, 10-second fixed tube, 11-second fixed ring, 12-second threaded ring, 13-sealing threaded sleeve, 14-friction sleeve, 15-slot, 16-limiting groove. DETAILED DESCRIPTION

[0015] The specific embodiments of the present utility model are described below in conjunction with the accompanying drawings.

[0016] A quick connector for fire fighting pipes, such as Figure 1 and Figure 2 As shown, it includes a connecting part I and a connecting part II, the connecting part I includes a connecting sleeve 1, a connected insert tube 2 is fixedly inserted inside the connecting sleeve 1, and a limit block 3 is symmetrically fixedly provided on the outer wall of the end of the insert tube 2 away from the connecting sleeve 1, and a connected first fixed tube 6 is fixedly connected to the end face of the connecting sleeve 1 away from the insert tube 2, and a first threaded ring 8 is fixedly connected to the outer wall of the connecting sleeve 1, and a thread is provided on the outer wall of the first threaded ring 8. The connecting part II includes a fixing sleeve 9, one end of which is directly opposite to the insert tube 2; the other end of the fixing sleeve 9 is fixedly connected to a second fixing tube 10 which is in communication with the fixing sleeve 9, the outer wall of the fixing sleeve 9 is fixedly connected to a second threaded ring 12, the outer wall of the second threaded ring 12 is provided with threads, and the direction and density of the threads on the first threaded ring 8 and the second threaded ring 12 are consistent; the outer wall of the second threaded ring 12 is rotatably connected to a sealing threaded sleeve 13, and the sealing threaded sleeve 13 also meets the requirements of threaded connection with the first threaded ring 8, the inner wall of the fixing sleeve 9 is symmetrically provided with a slot 15, one side of the slot 15 is provided with a limiting groove 16, and the limiting block 3 is slidably matched with the slot 15 and the limiting groove 16.

[0017] This embodiment adopts the following preferred scheme: the end surface of the connecting sleeve 1 facing the fixing sleeve 9 is provided with a mounting groove 4, and a sealing ring 5 is installed inside the mounting groove 4; the outer wall of the first fixing tube 6 is fixedly connected to the first fixing ring 7, and the first fixing ring 7 is also fixedly connected to the connecting sleeve 1; the outer wall of the second fixing tube 10 is fixedly connected to the second fixing ring 11, and the second fixing ring 11 is also fixedly connected to the fixing sleeve 9; the outer wall of the sealing threaded sleeve 13 is fixedly provided with a friction sleeve 14, such as Figure 2 and Figure 3 shown.

[0018] The specific operation of this embodiment is as follows: when in use, the second fixed pipe 10 is fixedly plugged into the fire-fighting pipe, and then the first fixed pipe 6 is installed to one end of the water spray pipe. When in use, the cannula 2 inside the connecting sleeve 1 is inserted into the inside of the fixing sleeve 9, and the limiting block 3 on the cannula 2 slides in the slot 15 on the inner wall of the fixing sleeve 9. When the limiting block 3 moves to the inside of the limiting groove 16, and the sealing ring 5 on the connecting sleeve 1 is close to the fixing sleeve 9, the connecting sleeve 1 is rotated, and the connecting sleeve 1 rotates to drive the cannula 2 and the limiting block 3 to rotate at the same time, and the limiting block 3 rotates to enter the other side of the limiting groove 16. The limiting groove 16 limits the cannula 2 and the limiting block 3, so that the cannula 2 cannot be separated from the fixing sleeve 9, and then the sealing threaded sleeve 13 on the second threaded ring 12 is rotated, and one end of the sealing threaded sleeve 13 is rotated and installed on the first threaded ring 8 on the connecting sleeve 1 until one end of the sealing threaded sleeve 13 is against the first fixing ring 7 on the first fixed pipe 6, so that the assembly can be quickly completed and can be put into use. Under the impact of high-pressure water flow, the insert tube 2 cannot be separated from the fixing sleeve 9, which plays a good fixing role. Secondly, when water leakage occurs inside the connection, the cooperation between the sealing threaded sleeve 13 and the first threaded ring 8 will not cause the pressure of the connected high-pressure water gun to be unstable or reduced.

[0019] The scope of protection claimed by the present invention is not limited to the above specific implementation methods. For those skilled in the art, the present invention may have various deformations and changes. Any modification, improvement and equivalent substitution made within the concept and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A quick connector for a fire-fighting pipe, characterized in that: The invention comprises a connecting part I and a connecting part II, wherein the connecting part I comprises a connecting sleeve (1), a connected insert pipe (2) is fixedly inserted into the interior of the connecting sleeve (1), a stopper (3) is symmetrically fixedly provided on the outer wall of the end of the insert pipe (2) away from the connecting sleeve (1), a connected first fixing pipe (6) is fixedly connected to the end surface of the connecting sleeve (1) away from the insert pipe (2), a first threaded ring (8) is fixedly connected to the outer wall of the connecting sleeve (1), and a thread is provided on the outer wall of the first threaded ring (8); The connecting portion II comprises a fixing sleeve (9), one end of which is directly opposite to the insertion tube (2); the other end of the fixing sleeve (9) is fixedly connected to a second fixing tube (10) in communication with the fixing sleeve (9); the outer wall of the fixing sleeve (9) is fixedly connected to a second threaded ring (12); a thread is provided on the outer wall of the second threaded ring (12); the direction and density of the threads on the first threaded ring (8) and the second threaded ring (12) are consistent; the outer wall of the second threaded ring (12) is rotatably connected to a sealing threaded sleeve (13); the sealing threaded sleeve (13) also meets the requirements of threaded connection with the first threaded ring (8); the inner wall of the fixing sleeve (9) is symmetrically provided with a slot (15); a limiting groove (16) is provided on one side of the slot (15); the limiting block (3) is slidably matched with the slot (15) and the limiting groove (16).

2. A quick connector for fire fighting pipe according to claim 1, characterized in that: An installation groove (4) is provided on the end surface of the connecting sleeve (1) facing the fixing sleeve (9), and a sealing ring (5) is installed inside the installation groove (4).

3. A quick connector for fire fighting pipe according to claim 1, characterized in that: The outer wall of the first fixed tube (6) is fixedly connected to a first fixed ring (7), and the first fixed ring (7) is also fixedly connected to the connecting sleeve (1).

4. A quick connector for fire fighting pipe according to claim 1, characterized in that: The outer wall of the second fixing tube (10) is fixedly connected to a second fixing ring (11), and the second fixing ring (11) is also fixedly connected to the fixing sleeve (9).

5. A quick connector for fire fighting pipe according to claim 1, characterized in that: A friction sleeve (14) is fixedly provided on the outer wall of the sealing threaded sleeve (13).

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