A multi-purpose water pump adapter

By adding a wrench to the water pump coupling body, the problem of accidental valve opening or closing is solved, enabling quick and labor-saving operation and improving the practicality of the multi-purpose water pump coupling.

CN224352088UActive Publication Date: 2026-06-12FUJIAN JIFA FIRE PROTECTION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FUJIAN JIFA FIRE PROTECTION TECH CO LTD
Filing Date
2025-06-16
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

The valves of existing multi-purpose water pump connections are easily opened or closed by unauthorized personnel, and may rust and jam after being unused for a long time, making them difficult to turn and affecting the normal use of fire-fighting equipment.

Method used

A wrench is added to the water pump coupling body. The wrench's protrusion is inserted into the arc-shaped notch of the hand dial and fixed with bolts and nuts to prevent misoperation. When needed, the wrench can rotate the hand dial to achieve quick opening and closing.

Benefits of technology

It effectively prevents the valve from being opened or closed accidentally, ensuring the normal use of the water pump coupling, and allows for quick and effortless turning of the hand dial when needed, improving the practicality of operation.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224352088U_ABST
    Figure CN224352088U_ABST
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Abstract

This utility model discloses a multi-purpose water pump connector, including a water pump connector body, a wrench, and bolts. The water pump connector body includes a base and a flange, with a hand dial in the middle of the flange. The hand dial has an arc-shaped notch. The wrench includes a front half and a rear half. The bottom of the front half has a protrusion that engages with the arc-shaped notch. The lower part of the rear half has a bolt hole. The front side of the base has a protruding plate with a horizontal notch in the middle. The lower part of the rear half passes through the horizontal notch and is fixed by a bolt through the bolt hole. This utility model adds a wrench to the multi-purpose water pump connector body. In the normal state, the protrusion of the front half of the wrench is embedded in the arc-shaped notch of the hand dial, and the lower half is fixed to the horizontal notch by bolts and nuts, thus locking the hand dial in place. When the hand dial needs to be opened, the rear half of the wrench is rotated upwards, forming a straight structure that drives the hand dial to rotate, which is very quick. This utility model has a novel structure and ingenious design, and is suitable for widespread application.
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Description

Technical Field

[0001] This utility model relates to the field of fire-fighting equipment technology, and more specifically to a multi-purpose water pump connector. Background Technology

[0002] A water pump connection is a device used in fire protection in conjunction with a water pump. In the event of a fire, the fire truck's water pump can quickly and easily connect to the fire protection equipment inside the building through the interface of the connection, and pressurize the water supply. This ensures that the indoor fire protection equipment receives sufficient pressurized water to extinguish fires on different floors, effectively solving the problem of fire trucks having difficulty extinguishing fires or indoor fire protection equipment being unable to extinguish fires due to insufficient pressurized water supply. Water pump connections come in various types, including underground, above-ground, and multi-purpose types. Multi-purpose water pump connections have a valve added to the middle of the top. This structure often encounters two problems in daily use: first, the valve is easily turned by unauthorized personnel, leading to accidental opening or closing, or even damage to the valve; second, the valve cannot be turned when needed. The valve is usually a hand-operated dial, which is prone to rust and jamming after long periods of disuse, making it difficult to turn by hand when needed. To address the two issues mentioned above, the inventors have proposed a multi-purpose water pump connector. By adding a wrench to the multi-purpose water pump connector, the valve can be locked and opened, making the water pump connector easier to use and enabling rapid fire extinguishing.

[0003] To improve the usability of multi-purpose water pump couplings, enabling quick installation and avoiding operational difficulties, Chinese Patent (Authorization Announcement No.: CN220600075U) discloses an easy-to-install multi-purpose water pump coupling. This utility model includes a coupling body, a protective device fixedly connected to the lower part of the outer surface of the coupling body, a control valve installed at the upper end of the coupling body, a first connector fixedly connected to the left side of the outer surface of the coupling body, and a second connector fixedly connected to the right side of the outer surface of the coupling body. Both the first and second connectors are L-shaped. A first sealing device is movably connected to the outer surface of the first connector, and a second sealing device is movably connected to the right side of the outer surface of the second connector. The second sealing device has the same structure as the first sealing device. This utility model, through its protective devices, prevents dust and rainwater from contacting the flange and causing corrosion.

[0004] The solution still has some shortcomings in application. Since the flange of the water pump connection is usually in the closed state and needs to be opened by professional firefighters when needed, it is rarely opened by others. On the other hand, the valves, most of which are hand-operated, are easily turned accidentally, leading to accidental opening or closing. In addition, they are also prone to becoming difficult to turn due to prolonged disuse. Therefore, it is necessary to add a tool to the multi-purpose water pump connection. This tool can lock and turn the hand-operated disc to prevent accidental opening and closing and assist firefighters in opening and closing valves, effectively improving the practicality of the fire pump connection. Utility Model Content

[0005] This utility model discloses a multi-purpose water pump connector, the main purpose of which is to overcome the above-mentioned shortcomings and disadvantages of the existing technology:

[0006] The technical solution adopted in this utility model is as follows:

[0007] A multi-purpose water pump connector includes a water pump connector body, a wrench, and bolts. The water pump connector body includes a base and a flange. A hand dial is provided in the middle of the flange. The hand dial has four symmetrically arranged arc-shaped notches. The wrench includes a front half and a rear half that are hinged to each other. The bottom of the front half has a protrusion that is adapted to engage with the arc-shaped notches. The lower part of the rear half has a bolt hole. The front side of the base has a protruding plate with a horizontal notch in the middle. The lower part of the rear half passes through the horizontal notch and the bolt passes through the bolt hole to fix the wrench.

[0008] Furthermore, the hand-operated turntable has a rotating rod in the middle, and an arc-shaped strip is provided between the rotating rod and the hand-operated turntable, forming the arc-shaped notch between the arc-shaped strip.

[0009] Furthermore, the protrusion consists of two pieces arranged one in front of the other, and the protrusion is adapted to cover the arc-shaped notch.

[0010] Furthermore, a carrying handle is provided at the top of the front half.

[0011] Furthermore, a hinge buckle is provided between the front half and the rear half, allowing the rear half to rotate up and down along the front half via the hinge buckle.

[0012] Furthermore, the bolt is fitted with a nut, which is located on one side of the bolt opening.

[0013] As can be seen from the above description of this utility model, compared with the prior art, the advantages of this utility model are as follows:

[0014] This invention first adds a wrench to the body of a multi-purpose water pump connector. In normal operation, the protrusion of the front half of the wrench is embedded in the arc-shaped notch of the hand dial, while the lower half is fixed to the horizontal notch by bolts and nuts. The wrench secures the hand dial, preventing accidental opening or closing by unauthorized personnel and ensuring the normal use of the multi-purpose water pump connector. Next, when the hand dial needs to be opened, the rear half of the wrench is rotated upwards, forming a straight structure. The protrusion embeds into the arc-shaped notch, and rotating the wrench drives the hand dial to rotate quickly, making it quite practical. Finally, after use, the rear half of the wrench is rotated downwards to secure the hand dial again. The operation is simple yet highly practical. This invention features a novel structure and ingenious design, enabling both secure and rapid rotation of the hand dial, making it suitable for widespread adoption. Attached Figure Description

[0015] Figure 1 This is a top view of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the structure of the wrench of this utility model. Figure 1 .

[0017] Figure 3 This is a schematic diagram of the structure of the wrench of this utility model. Figure 2 .

[0018] Figure 4 This is a front view structural diagram of the present invention. Detailed Implementation

[0019] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0020] like Figures 1 to 4 As shown, a multi-purpose water pump connector includes a water pump connector body 1, a wrench 2, and a bolt 3. The water pump connector body 1 includes a base 4 and a flange 5. A hand dial 6 is provided in the middle of the flange 5. The hand dial 6 has four symmetrically arranged arc-shaped notches 7. The wrench 2 includes a front half 21 and a rear half 22 that are hinged to each other. The bottom of the front half 21 has a protrusion 8 that is adapted to engage with the arc-shaped notches 7. The lower part of the rear half 22 has a bolt hole 9. The front side of the base 4 has a protruding plate 10 with a horizontal notch 11 in the middle. The lower part of the rear half 22 passes through the horizontal notch 11 and the bolt 3 passes through the bolt hole 9 to fix the wrench 2.

[0021] Furthermore, the hand dial 6 has a rotating rod 12 in the middle, and an arc-shaped strip 13 is provided between the rotating rod 12 and the hand dial 6, forming the arc-shaped notch 7 between the arc-shaped strip 13.

[0022] Furthermore, the protrusion 8 consists of two pieces arranged one in front of the other, and the protrusion 8 is adapted to cover the arc-shaped notch 7.

[0023] Furthermore, a handle 14 is provided at the top of the front half 21.

[0024] Furthermore, a hinge buckle 15 is provided between the front half 21 and the rear half 22, and the rear half 22 can rotate up and down along the front half 21 through the hinge buckle 15.

[0025] Furthermore, the bolt 3 is adapted to be equipped with a nut 16, which is located on one side of the bolt opening 9.

[0026] [Example]

[0027] First, when the water pump coupling body 1 is in a normal, unused state, the protrusion 8 of the front half 21 of the wrench 2 is engaged with two symmetrically arranged arc-shaped notches 7 on the hand dial 6. The lower part of the rear half 22 of the wrench 2 passes through the horizontal notch 11, and the bolt 3 passes through the bolt hole 9 and the nut 16, thus fixing the wrench 2 in a fixed state. At this time, the hand dial 6 cannot be rotated by unauthorized personnel. Next, when there is a fire or maintenance, the bolt 3 and nut 16 are unscrewed, and the wrench 2 is lifted upwards by the handle 14, and the rear plate 22 is rotated along the front plate 21, so that the front half 21 and the rear half 22 are in a straight line structure. The protrusion 8 is engaged in the arc-shaped notch 7 again. At this time, the wrench 2 is rotated, and the hand dial 6 is rotated by the wrench 2, which is very fast and effortless. Finally, after use, the rear half 22 is rotated downwards along the front half 21, and the rear half 22 passes through the horizontal notch 11 again, and is fixed again by the bolt 3 and nut 16.

[0028] As can be seen from the above description of this utility model, compared with the prior art, the advantages of this utility model are as follows:

[0029] This invention first adds a wrench to the body of a multi-purpose water pump connector. In normal operation, the protrusion of the front half of the wrench is embedded in the arc-shaped notch of the hand dial, while the lower half is fixed to the horizontal notch by bolts and nuts. The wrench secures the hand dial, preventing accidental opening or closing by unauthorized personnel and ensuring the normal use of the multi-purpose water pump connector. Next, when the hand dial needs to be opened, the rear half of the wrench is rotated upwards, forming a straight structure. The protrusion embeds into the arc-shaped notch, and rotating the wrench drives the hand dial to rotate quickly, making it quite practical. Finally, after use, the rear half of the wrench is rotated downwards to secure the hand dial again. The operation is simple yet highly practical. This invention features a novel structure and ingenious design, enabling both secure and rapid rotation of the hand dial, making it suitable for widespread adoption.

[0030] The above are merely specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial improvements made to this utility model using this concept should be considered as infringing on the protection scope of this utility model.

Claims

1. A multi-purpose water pump coupling, characterized in that: The device includes a water pump connector body, a wrench, and bolts. The water pump connector body includes a base and a flange. A hand dial is provided in the middle of the flange. The hand dial has four symmetrically arranged arc-shaped notches. The wrench includes a front half and a rear half that are hinged to each other. The bottom of the front half has a protrusion that fits into the arc-shaped notches. The lower part of the rear half has a bolt hole. The front side of the base has a protruding plate with a horizontal notch in the middle. The lower part of the rear half passes through the horizontal notch and the bolt passes through the bolt hole to fix the wrench.

2. The multi-purpose water pump connector according to claim 1, characterized in that: The hand-operated turntable has a rotating rod in the middle, and an arc-shaped strip is provided between the rotating rod and the hand-operated turntable, forming an arc-shaped notch between the arc-shaped strip.

3. The multi-purpose water pump connector according to claim 1, characterized in that: The protrusion consists of two pieces arranged one in front of the other, and the protrusion is adapted to cover the arc-shaped notch.

4. A multi-purpose water pump coupling according to claim 1, characterized in that: The front half is equipped with a carrying handle at the top.

5. A multi-purpose water pump coupling according to claim 1, characterized in that: A hinge is provided between the front half and the rear half, and the rear half can rotate up and down along the front half through the hinge.

6. A multi-purpose water pump coupling according to claim 1, characterized in that: The bolt is fitted with a nut, which is located on one side of the bolt opening.