Fire-fighting pipeline connecting piece

Abstract

The utility model relates to the technical field of fire fighting equipment, and discloses a fire fighting pipeline connecting piece which comprises a first connecting pipe and a second connecting pipe, a convex ring is arranged on the outer surface of one end of the first connecting pipe, a reducer pipe is arranged at one end of the second connecting pipe, and one end of the reducer pipe is arranged on the outer side of one end of the first connecting pipe in a sleeving mode. A connecting ring is arranged on the inner wall of the end, away from the second connecting pipe, of the reducer pipe. According to the fire-fighting pipeline connecting piece, by rotating the first connecting pipe or the second connecting pipe, the first connecting pipe or the second connecting pipe is gradually detached from the fire-fighting pipeline, so that the distance between the first connecting pipe and the second connecting pipe can be adjusted through the reducer pipe arranged on the first connecting pipe in a sleeving manner; and the overall size of the connecting piece is reduced, and the effects that the size of the connecting pipe fitting can be reduced and adjusted, the connecting pipe fitting can be rapidly detached from the fire-fighting pipeline when a fault occurs, and the fire-fighting pipeline fault rescue efficiency is improved are achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fire-fighting equipment, in particular to a fire-fighting pipeline connecting piece. BACKGROUND

[0002] As an important component of a fire-fighting system, a fire-fighting pipeline needs to be connected to multiple fire-fighting pipes during laying by using a fire-fighting pipeline connecting piece, and the performance of the connecting piece directly affects the reliability and safety of the fire-fighting system.

[0003] The size of the existing fire-fighting pipeline connecting piece is usually fixed, and when a fault occurs, the connecting piece cannot be quickly disassembled, and the connected fire-fighting pipes need to be synchronously disassembled and adjusted, which affects the efficiency and safety of the fire-fighting system. CONTENT OF THE UTILITY MODEL

[0004] In view of the deficiencies of the prior art, the present application provides a fire-fighting pipeline connecting piece, which has the advantages of being able to reduce and adjust the size of the connecting pipe piece, allowing the connecting pipe piece to be quickly disassembled from the fire-fighting pipeline when a fault occurs, improving the efficiency of fire-fighting pipeline fault rescue, and solving the problem that the size of the existing fire-fighting pipeline connecting piece is usually fixed, and when a fault occurs, the connecting piece cannot be quickly disassembled, and the connected fire-fighting pipes need to be synchronously disassembled and adjusted, which affects the efficiency and safety of the fire-fighting system.

[0005] To achieve the above-mentioned purpose of being able to reduce and adjust the size of the connecting pipe piece and allowing the connecting pipe piece to be quickly disassembled from the fire-fighting pipeline when a fault occurs, the present application provides the following technical solution: a fire-fighting pipeline connecting piece, comprising a first connecting pipe and a second connecting pipe, wherein one end of the first connecting pipe is provided with a convex ring on the outer surface, one end of the second connecting pipe is provided with a variable-diameter pipe, one end of the variable-diameter pipe is sleeved on the outside of one end of the first connecting pipe, the inner wall of the end of the variable-diameter pipe away from the second connecting pipe is provided with a connecting ring, the inner walls of the ends of the first connecting pipe and the second connecting pipe away from each other are both provided with internal threads, the connecting ring is located between the convex ring and the internal threads of one end of the first connecting pipe, and the tail ends of the internal threads of the inner walls of the ends of the first connecting pipe and the second connecting pipe are both provided with steps.

[0006] Through the above-mentioned scheme, by rotating the first connecting pipe or the second connecting pipe, the first connecting pipe or the second connecting pipe is gradually disassembled from the fire-fighting pipes of the fire-fighting pipeline, the distance between the first connecting pipe and the second connecting pipe can be adjusted by the variable-diameter pipe sleeved on the first connecting pipe, the overall size of the connecting piece is reduced, and the effects of being able to reduce and adjust the size of the connecting pipe piece and allowing the connecting pipe piece to be quickly disassembled from the fire-fighting pipeline when a fault occurs are achieved, and the efficiency of fire-fighting pipeline fault rescue is improved.

[0007] Further, one side of the ladder of the inner wall of one end of the first connecting pipe and the second connecting pipe is provided with a first sealing gasket, and one side of the first sealing gasket is provided with a clamping ring.

[0008] Through the above scheme, the connection between the first connecting pipe and the second connecting pipe and the fire pipe can be sealed through the setting of the first sealing gasket, and the sealing property of the connection between the first connecting pipe and the second connecting pipe and the fire pipe is ensured.

[0009] Further, one side of the connecting ring is provided with a second sealing gasket, the second sealing gasket is located between the connecting ring and the convex ring, and one side of the second sealing gasket is provided with a clamping ring with the same specification as one side of the first sealing gasket.

[0010] Through the above scheme, the first connecting pipe and the second connecting pipe can be sealed through the setting of the second sealing gasket, and the sealing property of the connecting piece under the condition of size adjustment is ensured.

[0011] Further, one side of the ladder and the connecting ring is provided with a mounting groove, and the clamping ring is embedded in the mounting groove.

[0012] Through the above scheme, by embedding the clamping ring into the mounting groove, the stability of the installation of the first sealing gasket and the second sealing gasket can be improved.

[0013] Further, the clamping ring is wedge-shaped, and the width of one side of the clamping ring away from the first sealing gasket and the second sealing gasket is greater than the width of the clamping ring close to the first sealing gasket and the second sealing gasket.

[0014] Through the above scheme, the wedge-shaped clamping ring can further improve the stability of the installation of the first sealing gasket and the second sealing gasket, and avoid the displacement of the first sealing gasket and the second sealing gasket when connecting the connecting piece with the fire pipe, which causes the fire pipe to be unable to be sealed.

[0015] Further, a limiting ring is sleeved on the outer surface of the middle part of the variable diameter pipe, a plurality of limiting rods are inserted into the inner wall of the middle edge of the limiting ring, and the plurality of limiting rods are uniformly arranged on the outer surface of the middle part of the first connecting pipe through the fixing plate.

[0016] Through the above scheme, the angle between the first connecting pipe and the second connecting pipe can be fixed through the cooperation of the limiting ring and the limiting rod, the stability between the first connecting pipe and the second connecting pipe is ensured, and the first connecting pipe and the second connecting pipe can always remain horizontal when in use.

[0017] Further, the outer surface of one end of the first connecting pipe and the second connecting pipe is provided with a nut.

[0018] Through the above scheme, the nut arranged on the outer surface of one end of the first connecting pipe and the second connecting pipe can conveniently drive the first connecting pipe and the second connecting pipe to rotate by using a wrench, and then the first connecting pipe and the second connecting pipe can be conveniently connected with the fire-fighting pipeline.

[0019] Further, the outer surface of the middle part of the variable-diameter pipe is provided with two positioning rings, the two positioning rings are located on the two sides of the limiting ring, and the outer surfaces of the opposite sides of the two positioning rings are in sliding connection with the outer surfaces of the two sides of the limiting ring.

[0020] Through the above scheme, the position of the limiting ring can be limited through the arrangement of the two positioning rings, and the stability of the cooperation between the limiting ring and the limiting rod is improved.

[0021] Compared with the prior art, the technical scheme of the present application has the following beneficial effects:

[0022] The fire-fighting pipeline connecting piece can gradually disassemble the first connecting pipe or the second connecting pipe from the fire-fighting pipeline of the fire-fighting pipeline, the distance between the first connecting pipe and the second connecting pipe can be adjusted through the variable-diameter pipe sleeved on the first connecting pipe, the overall size of the connecting piece is reduced, the size of the connecting pipe piece can be reduced and adjusted, the connecting pipe piece can be quickly disassembled from the fire-fighting pipeline when a fault occurs, and the efficiency of fire-fighting pipeline fault rescue is improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a three-dimensional structure schematic diagram of the present application;

[0024] Figure 2 It is a three-dimensional sectional structure schematic diagram of the present application;

[0025] Figure 3 It is a front sectional structure schematic diagram of the present application;

[0026] Figure 4 It is an explosion structure schematic diagram of the present application;

[0027] Figure 5 It is an explosion structure schematic diagram of the first connecting pipe of the present application;

[0028] Figure 6 It is an explosion structure schematic diagram of the second connecting pipe of the present application;

[0029] Figure 7 It is a connecting structure schematic diagram of the first sealing gasket, the second sealing gasket and the clamping ring of the present application.

[0030] In the figure:

[0031] 1, first connecting pipe; 2, second connecting pipe; 3, convex ring; 4, reducing pipe; 5, connecting ring; 6, internal thread; 7, ladder; 8, first sealing pad; 9, mounting groove; 10, clamping ring; 11, limiting ring; 12, limiting rod; 13, nut; 14, second sealing pad; 15, positioning ring. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0033] Please refer to Figure 1 , Figure 2 and Figure 3 , the fire pipe connecting piece in the embodiment comprises a first connecting pipe 1 and a second connecting pipe 2, the outer surface of one end of the first connecting pipe 1 is provided with a convex ring 3, one end of the second connecting pipe 2 is provided with a reducing pipe 4, one end of the reducing pipe 4 is sleeved outside one end of the first connecting pipe 1, the inner wall of the end of the reducing pipe 4 away from the second connecting pipe 2 is provided with a connecting ring 5, the inner walls of the ends of the first connecting pipe 1 and the second connecting pipe 2 are provided with internal threads 6, the connecting ring 5 is located between the convex ring 3 and the internal thread 6 of the end of the first connecting pipe 1, and the tail ends of the internal threads 6 of the inner walls of the ends of the first connecting pipe 1 and the second connecting pipe 2 are provided with ladders 7.

[0034] Please refer to Figure 2 , Figure 5 and Figure 6 , one side of the ladder 7 of the inner wall of the end of the first connecting pipe 1 and the second connecting pipe 2 is provided with a first sealing pad 8, one side of the first sealing pad 8 is provided with a clamping ring 10, the setting of the first sealing pad 8 can seal the connection between the first connecting pipe 1 and the second connecting pipe 2 and the fire pipe, and the sealing property of the connection between the first connecting pipe 1 and the second connecting pipe 2 and the fire pipe is ensured.

[0035] Please refer to Figure 3 , Figure 6 and Figure 7 , one side of the connecting ring 5 is provided with a second sealing pad 14, the second sealing pad 14 is located between the connecting ring 5 and the convex ring 3, one side of the second sealing pad 14 is provided with a clamping ring 10 of the same specification as one side of the first sealing pad 8, the setting of the second sealing pad 14 can seal the first connecting pipe 1 and the second connecting pipe 2, and the sealing property of the connecting piece in the case of size adjustment is ensured.

[0036] Please refer to Figure 3 , Figure 5 andFigure 6 The mounting groove 9 is internally embedded with a clamping ring 10. By embedding the clamping ring 10 into the mounting groove 9, the stability of the installation of the first sealing gasket 8 and the second sealing gasket 14 can be improved.

[0037] Please refer to Figure 2 , Figure 3 and Figure 7 The clamping ring 10 is wedge-shaped, and the width of the side of the clamping ring 10 away from the first sealing gasket 8 and the second sealing gasket 14 is greater than the width of the side of the clamping ring 10 close to the first sealing gasket 8 and the second sealing gasket 14. The wedge-shaped clamping ring 10 can further improve the stability of the installation of the first sealing gasket 8 and the second sealing gasket 14, and avoid the displacement of the first sealing gasket 8 and the second sealing gasket 14 when connecting the connecting piece with the fire pipe, which can cause the fire pipe to be unable to be sealed.

[0038] Please refer to Figure 1 , Figure 2 and Figure 3 The outer surface of the middle part of the reducing pipe 4 is sleeved with a limiting ring 11. A plurality of limiting rods 12 are inserted into the inner wall of the edge of the middle part of the limiting ring 11. The plurality of limiting rods 12 are evenly arranged on the outer surface of the middle part of the first connecting pipe 1 through a fixing plate. The angle between the first connecting pipe 1 and the second connecting pipe 2 can be fixed by the limiting ring 11 cooperating with the limiting rod 12, which ensures the stability between the first connecting pipe 1 and the second connecting pipe 2, so that the first connecting pipe 1 and the second connecting pipe 2 can always remain horizontal when in use.

[0039] Please refer to Figure 1 , Figure 2 and Figure 3 The outer surface of one end of the first connecting pipe 1 and the second connecting pipe 2 is provided with a nut 13. The nut 13 arranged on the outer surface of one end of the first connecting pipe 1 and the second connecting pipe 2 can conveniently drive the first connecting pipe 1 and the second connecting pipe 2 to rotate by using a wrench, and then the first connecting pipe 1 and the second connecting pipe 2 can be conveniently connected with the fire pipe.

[0040] Please refer to Figure 1 , Figure 2 and Figure 3 Two positioning rings 15 are arranged on the outer surface of the middle part of the reducing pipe 4. The two positioning rings 15 are located on both sides of the limiting ring 11, and the outer surfaces of the opposite sides of the two positioning rings 15 are slidingly connected with the outer surfaces of the two sides of the limiting ring 11. The position of the limiting ring 11 can be limited by the arrangement of the two positioning rings 15, and the stability of the cooperation between the limiting ring 11 and the limiting rod 12 is improved.

[0041] The fire-fighting pipeline connecting piece in the embodiment can gradually dismount the first connecting pipe 1 or the second connecting pipe 2 from the fire-fighting pipeline by rotating the first connecting pipe 1 or the second connecting pipe 2, the distance between the first connecting pipe 1 and the second connecting pipe 2 can be adjusted by the variable-diameter pipe 4 sleeved on the first connecting pipe 1, the overall size of the connecting piece is reduced, the size of the connecting pipe piece can be reduced and adjusted, the connecting pipe piece can be quickly dismounted from the fire-fighting pipeline when a fault occurs, and the efficiency of fire-fighting pipeline fault rescue is improved.

[0042] The working principle of the above embodiment is as follows: one end of the inner thread 6 of the first connecting pipe 1 is sleeved on one end of the fire-fighting pipeline to be connected, a wrench is used to drive the first connecting pipe 1 to rotate through the nut 13, the first connecting pipe 1 is installed on the fire-fighting pipeline through the inner thread 6, when installing, the ladder 7 on the inner wall of one end of the first connecting pipe 1 cooperates with one end of the fire-fighting pipeline to extrude the first sealing gasket 8 in the first connecting pipe 1, and the first connecting pipe 1 and the fire-fighting pipeline are sealed, one end of the inner thread 6 of the second connecting pipe 2 is sleeved on one end of the fire-fighting pipeline to be connected, a wrench is used to drive the second connecting pipe 2 to rotate through the nut 13, the second connecting pipe 2 is installed on the fire-fighting pipeline through the inner thread 6, when installing, the ladder 7 on the inner wall of one end of the second connecting pipe 2 cooperates with one end of the fire-fighting pipeline to extrude the first sealing gasket 8 in the second connecting pipe 2, and the second connecting pipe 2 and the fire-fighting pipeline are sealed, when the second connecting pipe 2 is installed on the fire-fighting pipeline, the variable-diameter pipe 4 will drive the connecting ring 5 to gradually approach the convex ring 3, the convex ring 3 cooperates with the connecting ring 5 to extrude the second sealing gasket 14, and the first connecting pipe 1 and the second connecting pipe 2 are sealed, at the same time, when the second connecting pipe 2 is rotated, the limiting ring 11 will rotate on the outer surface of the middle part of the variable-diameter pipe 4, and the limiting rod 12 will slide in the inner wall of the middle edge of the limiting ring 11, and the installation of the connecting piece is completed, when the connecting piece needs to be dismounted, a wrench is used to drive the second connecting pipe 2 to rotate through the nut 13, the second connecting pipe 2 is gradually dismounted from the fire-fighting pipeline, at the same time, the variable-diameter pipe 4 will drive the connecting ring 5 to gradually move away from the convex ring 3, the distance between the first connecting pipe 1 and the second connecting pipe 2 is gradually shortened, and the first connecting pipe 1 and the second connecting pipe 2 can be conveniently dismounted from the fire-fighting pipeline.

[0043] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the enclosed claims. That is, although the present application is described in terms of particular embodiments and illustrative figures, it should be apparent that the application can be varied in a multitude of ways. Such alterations, many of which will be apparent to those skilled in the art, can be based on current technology, and as such, this application should not be limited to the particular embodiments described herein, but should be understood to include all embodiments that are within the scope of the appended claims and their equivalents.

[0044] While the embodiments of the application have been shown and described herein, it will be understood by those skilled in the art that many changes, modifications, substitutions and alterations to these embodiments can be made without departing from the principles and spirits of the application, which can be limited only by the scope of the appended claims and their equivalents.

Claims

1. A fire service connection comprising a first connection pipe (1), a second connection pipe (2), characterized in that: The outer surface of one end of the first connecting pipe (1) is provided with a convex ring (3), one end of the second connecting pipe (2) is provided with a reducing pipe (4), one end of the reducing pipe (4) is sleeved outside one end of the first connecting pipe (1), the inner wall of the end of the reducing pipe (4) away from the second connecting pipe (2) is provided with a connecting ring (5), the inner wall of the end of the first connecting pipe (1) and the second connecting pipe (2) away from each other is provided with an internal thread (6), the connecting ring (5) is located between the convex ring (3) and the internal thread (6) of the end of the first connecting pipe (1), and the tail end of the internal thread (6) of the inner wall of the end of the first connecting pipe (1) and the second connecting pipe (2) is provided with a ladder (7).

2. A fire hose coupling according to claim 1, wherein: One side of the ladder (7) of the inner wall of the end of the first connecting pipe (1) and the second connecting pipe (2) is provided with a first sealing gasket (8), and one side of the first sealing gasket (8) is provided with a clamping ring (10).

3. A fire hose coupling according to claim 1, wherein: One side of the connecting ring (5) is provided with a second sealing gasket (14), and the second sealing gasket (14) is located between the connecting ring (5) and the convex ring (3), and one side of the second sealing gasket (14) is provided with a clamping ring (10) with the same specification as one side of the first sealing gasket (8).

4. A fire hose coupling according to claim 1, wherein: One side of the ladder (7) and the connecting ring (5) is provided with a mounting groove (9), and the mounting groove (9) is embedded with a clamping ring (10).

5. A fire hose coupling according to claim 4, wherein: The clamping ring (10) is wedge-shaped, and the width of the side of the clamping ring (10) away from the first sealing gasket (8) and the second sealing gasket (14) is greater than the width of the side of the clamping ring (10) close to the first sealing gasket (8) and the second sealing gasket (14).

6. A fire hose coupling according to claim 4, wherein: The outer surface of the middle part of the reducing pipe (4) is sleeved with a limiting ring (11), a plurality of limiting rods (12) are inserted into the inner wall of the middle edge of the limiting ring (11), and the plurality of limiting rods (12) are uniformly arranged on the outer surface of the middle part of the first connecting pipe (1) through a fixed plate.

7. A fire hose coupling according to claim 1, wherein: The outer surface of one end of the first connecting pipe (1) and the second connecting pipe (2) is provided with a nut (13).

8. A fire hose coupling according to claim 1, wherein: The middle part of the outer surface of the reducing pipe (4) is provided with two positioning rings (15), and the two positioning rings (15) are located on the two sides of the limiting ring (11).

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