Fire hose fastener

Abstract

This utility model discloses a fire hose fastening coupling, including a male connector and a female connector. The male connector has a tapered guide head at its end, with a samarium cobalt permanent magnet with a semi-circular notch embedded in its end face and connected to a sliding handle. The sliding handle passes through an L-shaped track groove. The female connector has a reverse magnet embedded in its inner wall and a guide groove. When connecting, the opposite pole magnet automatically corrects the notch. After insertion, the sliding handle is rotated 90° and pulled down, and the locking block is engaged in the recess to form a mechanical self-lock. The horizontal position of the sliding handle prevents loosening due to gravity. When unlocking, the sliding handle is pushed up and rotated to reset. The magnetic blind connection is accurate, the springless electromechanical structure requires no maintenance for life, the samarium cobalt magnet does not fail at -50℃, and the drainage hole and self-cleaning scraper ensure reliable operation in icy, snowy, and muddy environments. It is comprehensively superior to traditional fire hose couplings, redefining the reliability standard of fire hose couplings with three major breakthroughs: magnetic correction for faster blind connection, mechanical reverse hook for absolute anti-detachment, and no electromechanical components requiring no maintenance for life.

Description

Technical Field

[0001] This utility model relates to the field of fire protection equipment technology, specifically to a fastening fastener for connecting fire hoses to each other or to a fire hose and a fire hose interface, and in particular, a fire hose fastening fastener. Background Technology

[0002] Existing fire hose couplings mostly use threaded tightening or snap-on connections, which have the following drawbacks:

[0003] Low connection efficiency: Threaded connections require multiple rotations, resulting in time-consuming operation;

[0004] Easy to come loose accidentally: The snap-on mechanism can easily detach under dragging or water pressure impact;

[0005] Poor durability: The buckle lugs or threads are prone to wear and deformation, leading to failure.

[0006] Patent number CN202421173361.1 proposes a "fast-connecting anti-detachment type for fire hoses" telescopic spring that is prone to getting stuck in mud and sand. Utility Model Content

[0007] The purpose of this utility model is to provide a fire hose fastening buckle in order to solve the above-mentioned technical problems.

[0008] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0009] This utility model proposes a fire hose fastening buckle, including a male connector and a female connector; the male connector is provided with a tapered guide head at its end, and a permanent magnet with a semi-circular notch is embedded in its end face. The magnet is connected to a sliding handle, and the sliding handle passes through an L-shaped track groove inside the male connector.

[0010] The female connector has a semi-circular second permanent magnet inside, and the second permanent magnet and the male connector have opposite poles. The top of the female connector has a second track groove.

[0011] As a preferred embodiment of this utility model, the inlet of the female connector guide groove is covered with an elastic scraper, and a drainage hole is provided at the bottom.

[0012] As a preferred technical solution of this utility model, the inner wall of the female connector is provided with a limiting boss corresponding to the movement trajectory of the permanent magnet of the male connector.

[0013] As a preferred technical solution of this utility model, the permanent magnet is made of neodymium iron boron material, with nickel plating on the surface, and the magnetic induction intensity is ≥0.35T.

[0014] As a preferred embodiment of this utility model, the second permanent magnet is fixed to the limiting boss and can rotate with the permanent magnet.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. Rapid blind docking positioning: The semi-circular opposite pole magnet automatically corrects the gap, enabling precise docking within 2 seconds with one hand while wearing gloves, greatly improving the success rate in heavy smoke environments at night;

[0017] 2. Intuitive and efficient operation: Push in → Pull down to lock in two steps, the sliding handle is gravity-locked in the horizontal position, and the status is clear at a glance;

[0018] 3. Zero maintenance and durable: The all-metal locking structure has no springs / threads, is resistant to mud and sand wear, has a lifespan of over 10 years, and reduces maintenance costs by 80%. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the female connector structure;

[0021] Figure 3 This is a schematic diagram of a public connector.

[0022] Reference numerals: 1. Male connector; 2. Female connector; 11. Conical guide head; 12. Permanent magnet; 13. Sliding handle; 14. L-shaped track groove; 21. Second permanent magnet; 22. Limiting boss; 23. Drain hole; 24. Elastic scraper; 25. Guide groove. Detailed Implementation

[0023] like Figures 1 to 3 As shown, this utility model proposes: a fire hose fastening buckle, including a male connector and a female connector; the male connector is provided with a tapered guide head at its end, and a permanent magnet with a semi-circular notch is embedded in its end face. The magnet is connected to a sliding handle, and the sliding handle passes through an L-shaped track groove inside the male connector.

[0024] The female connector has a semi-circular second permanent magnet inside, and the second permanent magnet and the male connector have opposite poles, and the notch position matches the male connector.

[0025] The female connector guide groove inlet is covered with an elastic scraper, and a drainage hole is provided at the bottom.

[0026] The inner wall of the female connector is provided with a limiting boss that corresponds to the movement trajectory of the permanent magnet of the male connector.

[0027] The permanent magnet is made of neodymium iron boron with a nickel-plated surface and a magnetic induction intensity ≥0.35T.

[0028] The second permanent magnet is fixed to the limiting boss and can rotate with the permanent magnet.

[0029] Working principle:

[0030] When the male connector is inserted into the female connector, the embedded semi-circular permanent magnet with opposite poles automatically corrects the notch position through magnetic attraction, achieving pre-positioning. The operator pushes the sliding handle along the L-shaped track groove of the male connector: pulling down the sliding handle drives the locking block to slide into the 110° anti-hook recess on the inner wall of the female connector, forming a mechanical self-lock; at this time, the sliding handle is in a horizontal position, using gravity to prevent loosening; to unlock, the sliding handle needs to be pushed up to disengage from the recess, and the sliding handle needs to be manually lifted to a vertical position to separate the connector; with three major breakthroughs—magnetic correction for faster blind connection, mechanical anti-hook for absolute anti-loosening, and no electromechanical components for lifetime maintenance-free—the reliability standard of fire hose couplings is redefined. Example 1

[0031] The male connector body is made of 6061-T6 aluminum alloy, with a 15° tapered guide head machined at the end and embedded with a samarium cobalt magnet. The magnet is connected to a 304 stainless steel sliding handle, which passes through an L-shaped track groove on the side wall of the male connector and is fixed at the end with a 110° inclined wedge-shaped locking block. The female connector has an embedded magnet of the same specification in opposite direction, an inner wall guide groove, and a drainage hole at the bottom. During operation, the male and female connectors are magnetically aligned and inserted. After rotating the sliding handle 90° and pulling it down to the horizontal position, the locking block will click into the recess and make a "click" sound to lock it in place.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0033] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A fire hose fastening coupling, characterized in that: Includes male connector (1) and female connector (2); The male connector (1) is provided with a tapered guide head (11) at the end, and a permanent magnet (12) with a semi-circular notch is embedded in the end face. The magnet is connected to a sliding handle (13), and the sliding handle passes through the L-shaped track groove (14) inside the male connector (1). The female connector (2) is provided with a semi-circular second permanent magnet (21) inside, and the second permanent magnet (21) and the permanent magnet (12) of the male connector (1) are opposite poles facing each other. The top of the female connector is provided with a second track groove (26).

2. The fire hose fastening buckle according to claim 1, characterized in that: The female connector (2) has an elastic scraper (24) covering the inlet of the guide groove (25) and a drainage hole (23) at the bottom.

3. A fire hose fastening coupling according to claim 1, characterized in that: The inner wall of the female connector (2) is provided with a limiting boss (22) corresponding to the movement trajectory of the permanent magnet (12) of the male connector (1).

4. A fire hose fastening buckle according to claim 1, characterized in that: The permanent magnet (12) is made of neodymium iron boron and has a nickel-plated surface with a magnetic induction intensity ≥0.35T.

5. A fire hose fastening coupling according to claim 1, characterized in that: The second permanent magnet (21) is fixed to the limiting boss (22) and can rotate with the permanent magnet (12).

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