Portable fire-fighting connector

By using a snap-fit ​​positioning mechanism and a rotary joint design for the convenient fire hydrant connector, the problems of complex operation and kinking of existing fire hydrant quick connectors are solved, achieving the effect of quick connection and convenient rotation.

CN223782340UActive Publication Date: 2026-01-09广东粤同建设有限公司
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Patent Information

Application Number
CN202520329019.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-27
Publication Date
2026-01-09
Estimated Expiration
2035-02-27

AI Technical Summary

Technical Problem

Existing fire hydrant quick-connect couplings are inconvenient to operate, have a complex structure, and are prone to kinking.

Method used

It adopts a snap-fit ​​positioning mechanism and a rotary joint design, which achieves quick connection and limit through the cooperation of L-shaped clamp and groove. Combined with the sealed rotary connection between the rotating tube and the fixed tube, it avoids kinking.

Benefits of technology

It achieves simple operation, quick connection and convenient rotation, avoids kinking, and reduces production costs and ease of use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a portable fire-fighting joint, which relates to the technical field of fire-fighting accessories and comprises a first connecting pipe, a second connecting pipe is clamped on one side of the first connecting pipe, and a clamping positioning mechanism is mounted between the outer surface of the first connecting pipe and the outer surface of the second connecting pipe. The outer surface of one end of the second connecting pipe is fixedly connected with a rotary connector, and the inner wall of one end of the first connecting pipe is provided with an internal thread. By means of the arranged clamping and positioning mechanism, the second connecting pipe can be limited, and the situation of rotation is avoided; the L-shaped clamping rod can be separated from the clamping groove only by pressing the two pressing plates during disassembly, operation is convenient, the structure is simple, the second connecting pipe and the external firefighting pipeline can rotate separately through the arranged rotating connector, the twisting situation is avoided, and use is convenient.
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Description

TECHNICAL FIELD

[0001] The utility model relates to fire fighting accessory technical field, concretely is a portable fire hydrant. BACKGROUND

[0002] The fire hydrant is a kind of fixed fire-fighting equipment, and its main function is to control combustible material, isolate combustion-supporting material and eliminate ignition source. When the fire hydrant is used, it needs to be connected with the fire hose by the quick connector on its surface. According to the search, the patent with the patent number CN221548071U discloses a stable fire hydrant quick connector, which belongs to the technical field of fire hydrant quick connectors. The utility model discloses a first connector and a second connector, the first connector and the second connector are mutually clamped, a stable device is arranged on the arc surface of the first connector and the second connector, the stable device includes two mounting frames, the inner walls of the two mounting frames are respectively rotatably connected with rotating plates, a fixing groove is formed in the inner wall of the rotating plate,

[0003] The above technical solution solves the problem that the flowing water generates a great pressure when the fire hydrant is used, and the rotation connection of the quick connector may be reversed under the impact of the water flow. However, it is inconvenient to operate and increases the work burden to pull the pull ropes on both sides when disassembling. Moreover, the structure is complex, the production and use costs are increased, and the second connector structure is fixed, so the fire hose cannot be rotated after installation, which may cause kinking and affect normal use. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies of the prior art, the utility model provides a portable fire hydrant connector to solve the problems in the background art.

[0005] To achieve the above purpose, the utility model is implemented by the following technical scheme: a portable fire hydrant connector, including a first connecting pipe, one side of the first connecting pipe is clamped with a second connecting pipe, a clamping positioning mechanism is installed between the outer surfaces of the first connecting pipe and the second connecting pipe, the outer surface of one end of the second connecting pipe is fixedly connected with a rotary joint, and the inner wall of one end of the first connecting pipe is provided with an internal thread.

[0006] The clamping positioning mechanism includes supports fixedly connected on both sides of the outer surface of the first connecting pipe, L-shaped clamping rods are rotatably connected in the supports, and clamping grooves matched with the L-shaped clamping rods are formed in the outer surfaces of both sides of the second connecting pipe.

[0007] Preferably, torsional springs are fixedly connected between the outer surfaces of both sides of the L-shaped clamping rods and the inner walls of both sides of the supports, and the bottom end of the L-shaped clamping rod is provided with an arc surface. The torsional springs can automatically drive the L-shaped clamping rod to reset.

[0008] Preferably, one end of the L-shaped clamping rod away from the second connecting pipe is fixedly connected with a pressing plate, the pressing plate is arranged obliquely, and the outer surface of the pressing plate is provided with anti-skid lines, so that the two L-shaped clamping rods can be pressed.

[0009] Preferably, a plurality of L-shaped clamping plates are fixedly connected to the inner wall of one end of the first connecting pipe in an annular array, and the outer surface of the second connecting pipe is fixedly connected with a plurality of L-shaped clamping blocks matched with the L-shaped clamping plates on one side in an annular array, so that the first connecting pipe and the second connecting pipe can be quickly connected.

[0010] Preferably, the rotary joint comprises a fixed pipe fixedly connected to one end of the second connecting pipe, a rotating pipe rotatably connected to the inner wall of the fixed pipe through a bearing, and a sealing rubber ring embedded in the inner wall of the fixed pipe and in sealing contact with the outer surface of the rotating pipe, so that the rotating pipe can be rotated during use to avoid kinking of the external water pipe.

[0011] Preferably, the outer surface of the rotating pipe is provided with a plurality of annular protrusions in sequence, so as to increase the friction and prevent the external water pipe from falling off.

[0012] The utility model provides a kind of portable fire connection. With following beneficial effects:

[0013] 1, the portable fire connection, by the clamping positioning mechanism being set, not only can be positioned to second connecting pipe, avoid appearing rotating condition, and when disassembling, only two pressing plates can be pressed to make that L-shaped clamping rod and clamping groove separate, not only convenient operation, and simple structure, to solve the problem of inconvenient operation and complex structure of existing joint.

[0014] 2, the portable fire connection, by the rotary joint being set, second connecting pipe and external fire pipe can be rotated respectively, without kinking, convenient to use, to solve the problem of existing joint structure fixed, after fixing, inconvenient to rotate and prone to kinking. DETAILED DESCRIPTION

[0015] Figure 1 It is the overall structure schematic diagram of the utility model;

[0016] Figure 2 It is the first connecting pipe structure schematic diagram of the utility model;

[0017] Figure 3 It is the structure schematic diagram of the second connecting pipe of the utility model;

[0018] Figure 4 It is another angle structure schematic diagram of the second connecting pipe of the utility model;

[0019] Figure 5The utility model discloses a rotating pipe structure.

[0020] In the drawing, 1, first connecting pipe, 2, second connecting pipe, 3, clamping positioning mechanism, 31, support, 32, L type clamping rod, 33, clamping groove, 34, pressing plate, 4, rotary joint, 41, fixed pipe, 42, rotating pipe, 43, sealing rubber ring, 44, annular protrusion, 5, internal thread, 6, L type clamping plate, 7, L type clamping block. DETAILED DESCRIPTION

[0021] The utility model discloses an embodiment of the utility model will be clearly and completely described below with the drawings in the embodiment of the utility model to the technical scheme in the embodiment of the utility model, obviously, the described embodiment only is a part of embodiment of the utility model, instead of all the embodiment. Based on the embodiment in the utility model, all other embodiments that the ordinary skill in the art obtains without making creative labor belong to the range of protection of the utility model.

[0022] Embodiment 1:

[0023] As Figures 1 to 3 The utility model discloses a portable fire connection, including first connecting pipe 1, one side of first connecting pipe 1 is connected with second connecting pipe 2, and the inner wall annular array fixed connection of one end of first connecting pipe 1 has a plurality of L type clamping plate 6, and the outer surface one side annular array fixed connection of second connecting pipe 2 has a plurality of L type clamping block 7 that cooperates with L type clamping plate 6, and the inner wall of one end of first connecting pipe 1 is provided with internal thread 5.

[0024] When connecting, the internal thread 5 is arranged to facilitate the installation of the first connecting pipe 1 on the corresponding fire-fighting equipment, then the L-shaped clamping block 7 is inserted into the first connecting pipe 1, and then the second connecting pipe 2 is rotated, and the quick connection of the first connecting pipe 1 and the second connecting pipe 2 can be realized under the cooperation of the L-shaped clamping plate 6 and the L-shaped clamping block 7.

[0025] Embodiment 2:

[0026] As Figures 1 to 3 The utility model discloses a portable fire connection, including first connecting pipe 1, one side of first connecting pipe 1 is connected with second connecting pipe 2, and the inner wall annular array fixed connection of one end of first connecting pipe 1 has a plurality of L type clamping plate 6, and the outer surface one side annular array fixed connection of second connecting pipe 2 has a plurality of L type clamping block 7 that cooperates with L type clamping plate 6, and the inner wall of one end of first connecting pipe 1 is provided with internal thread 5.

[0027] After the first connecting pipe 1 and the second connecting pipe 2 are connected, one end of the L-shaped clamping rod 32 corresponds to the corresponding clamping groove 33, and then the one end of the L-shaped clamping rod 32 is automatically clamped into the clamping groove 33 under the action of the torsion spring, the second connecting pipe 2 can be limited, and the rotating condition can be avoided, and when disassembling, the L-shaped clamping rod 32 can be separated from the clamping groove 33 by pressing the two pressing plates 34, which is not only convenient to operate, but also simple in structure, thereby solving the problems of inconvenient operation and complex structure of the existing connector.

[0028] Embodiment 3:

[0029] As shown in Figure 1 , Figure 4 and Figure 5 , one end of the second connecting pipe 2 is fixedly connected with a rotary joint 4, the rotary joint 4 comprises a fixed pipe 41 fixedly connected to one end of the second connecting pipe 2, a rotating pipe 42 rotatably connected to the inner wall of the fixed pipe 41 through a bearing, and a sealing rubber ring 43 embedded in the inner wall of the fixed pipe 41 and in sealing contact with the outer surface of the rotating pipe 42. The outer surface of the rotating pipe 42 is provided with a plurality of annular protrusions 44 in sequence.

[0030] The annular protrusions 44 are arranged to facilitate the connection of the external fire-fighting pipeline, and the sealing and rotating connection between the rotating pipe 42 and the fixed pipe 41 allows the second connecting pipe 2 and the external fire-fighting pipeline to rotate respectively, without kinking, facilitating use, thereby solving the problem that the existing connector structure is fixed and is not convenient to rotate after being fixed and is prone to kinking.

[0031] Working principle: when connecting, the inner thread 5 is arranged to facilitate the installation of the first connecting pipe 1 on the corresponding fire-fighting equipment, then the L-shaped clamping block 7 is inserted into the inside of the first connecting pipe 1, and then the second connecting pipe 2 is rotated, and the L-shaped clamping plate 6 and the L-shaped clamping block 7 cooperate to realize the quick connection of the first connecting pipe 1 and the second connecting pipe 2.

[0032] After the first connecting pipe 1 and the second connecting pipe 2 are connected, one end of the L-shaped clamping rod 32 corresponds to the corresponding clamping groove 33, and then the one end of the L-shaped clamping rod 32 is automatically clamped into the clamping groove 33 under the action of the torsion spring, the second connecting pipe 2 can be limited, and the rotating condition can be avoided, and when disassembling, the L-shaped clamping rod 32 can be separated from the clamping groove 33 by pressing the two pressing plates 34, which is not only convenient to operate, but also simple in structure, thereby solving the problems of inconvenient operation and complex structure of the existing connector.

[0033] The annular protrusion 44 is arranged to facilitate the connection of the external fire pipe, and the sealing and rotating connection between the rotating pipe 42 and the fixed pipe 41 enables the second connecting pipe 2 and the external fire pipe to rotate respectively, without kinking, facilitating use, thereby solving the problem of the fixed structure of the existing connector, which is inconvenient to rotate after being fixed and is prone to kinking.

[0034] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above, and it is obvious for those skilled in the art that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic features of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0035] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be properly combined to form other embodiments that those skilled in the art can understand.

Claims

1. A portable fire service coupling comprising a first connecting pipe (1), characterized in that: One side of the first connecting pipe (1) is clamped with the second connecting pipe (2), the clamping positioning mechanism (3) is installed between the outer surface of the first connecting pipe (1) and the second connecting pipe (2), one end of the outer surface of the second connecting pipe (2) is fixedly connected with the rotary joint (4), and the inner wall of one end of the first connecting pipe (1) is provided with the internal thread (5). The clamping positioning mechanism (3) comprises the brackets (31) which are symmetrically and fixedly connected on the outer surface of the first connecting pipe (1), the L-shaped clamping rods (32) which are rotatably connected in the brackets (31), and the clamping grooves (33) which are formed in the outer surface of the second connecting pipe (2) and matched with the L-shaped clamping rods (32).

2. The portable fire hose coupling of claim 1, wherein: The torsional springs are fixedly connected between the outer surface of the L-shaped clamping rod (32) and the inner wall of the bracket (31), and the bottom side of the L-shaped clamping rod (32) is provided with the arc surface.

3. The portable fire hose coupling of claim 1, wherein: The L-shaped clamping rod (32) is fixedly connected with the pressing plate (34) at the end away from the second connecting pipe (2), the pressing plate (34) is inclined, and the outer surface of the pressing plate (34) is provided with the anti-skid lines.

4. The portable fire hose coupling of claim 1, wherein: The L-shaped clamping rods (32) are fixedly connected with the L-shaped clamping blocks (7) on the outer surface of the second connecting pipe (2) in an annular array.

5. The portable fire hose coupling of claim 1, wherein: The rotary joint (4) comprises the fixed pipe (41) which is fixedly connected with the second connecting pipe (2), the rotating pipe (42) which is rotatably connected with the inner wall of the fixed pipe (41) through the bearing, and the sealing rubber ring (43) which is embedded in the inner wall of the fixed pipe (41) and sealingly contacts with the outer surface of the rotating pipe (42).

6. The portable fire hose coupling of claim 5, wherein: The outer surface of the rotating pipe (42) is sequentially provided with the annular protrusions (44).

Citation Information

Patent Citations

  • Stable fire hydrant quick connector

    CN221548071U