Quick-release fire-fighting aluminum connector casting

Abstract

This utility model discloses a quick-release fire-fighting aluminum coupling casting, relating to the field of fire-fighting equipment technology, including an aluminum alloy male connector and a female connector. The male connector (1) is integrally cast from aluminum alloy, with an insertion end (11) at the front end and an interface for connecting fire hoses at the rear end; the insertion end (11) has an axial sliding groove (12) on its side; the rotary button (13) passes through the sliding groove and can rotate between a vertical insertion state and a horizontal locking state; a locking block (14) is provided at the bottom of the button; the female connector (2) A socket cavity (21) matching the insertion end (11) of the male connector (1) is provided, and a T-shaped locking groove (22) is opened in the cavity wall; the T-shaped locking groove (22) is composed of a vertical guide groove and a horizontal locking groove connected together; rotate 90° clockwise, and the locking block is inserted into the slope of the horizontal locking groove, converting the water flow impact force into axial sealing pressure, and pressing the end face sealing ring; when disassembling, the button can be turned in reverse to pull it out; realize ≤3 seconds of one-handed quick disassembly and assembly, pull-out force ≥5.2kN, and completely solve the problems of cumbersome operation, spring failure and sealing dependence of traditional fasteners.

Description

Technical Field

[0001] In the field of fire-fighting equipment technology, this invention relates in particular to a quick-release aluminum coupling casting for fire protection. Background Technology

[0002] Traditional fire hose couplings have three major drawbacks:

[0003] Threaded connections: time-consuming to tighten, prone to rusting and seizing;

[0004] Snap-on quick release: complex structure, springs are prone to failure;

[0005] Challenges in aluminum alloy applications: Castings are difficult to withstand complex locking mechanisms;

[0006] Patent number CN211816627U proposes "a fire hydrant casting with quick-connect function".

[0007] The operation is cumbersome: it requires the use of both hands (one hand to press the connecting ring and the other hand to pull off the cover), it is easy to slip off when wearing gloves, and the connection takes more than 8 seconds;

[0008] High dependence on springs: Long-term exposure can easily lead to corrosion and failure, resulting in a decrease in locking force and a risk of disengagement under the impact of high-pressure water flow;

[0009] Complex structure: It contains ≥6 parts such as springs, pins, and connecting plates. Castings are difficult to form in one piece, and assembly relies on machining, which increases the cost by 40%. Utility Model Content

[0010] The purpose of this utility model is to provide a quick-release fire-fighting aluminum coupling casting in order to solve the above-mentioned technical problems.

[0011] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0012] This utility model proposes a quick-release fire-fighting aluminum coupling casting, including: a male connector and a female connector;

[0013] The male connector is integrally cast from aluminum alloy, with an insertion end at the front end and an interface for connecting fire hoses or equipment at the rear end; the insertion end has an axial groove on its side.

[0014] The rotary button passes through the slide groove and can rotate between a vertically inserted state and a horizontally locked state; a locking block is provided at the bottom of the button.

[0015] The female connector has a socket cavity that matches the insertion end of the male connector, and a T-shaped locking groove is formed in the cavity wall; the T-shaped locking groove is composed of a vertical guide groove and a horizontal locking groove connected together;

[0016] The sealing structure is provided on the end face of the male connector insertion end or the bottom of the female connector socket cavity;

[0017] When the male connector is vertically inserted into the female connector, the rotating button moves downward along the vertical guide groove of the T-shaped locking groove; after insertion, the rotating button moves to the horizontal position, and the locking block engages with the horizontal groove to form a horizontal mechanical lock.

[0018] As a preferred embodiment of this utility model, the locking block of the rotary button is rectangular, and the shape of the horizontal slot matches it.

[0019] As a preferred embodiment of this invention, the top of the rotary button is provided with anti-slip texture.

[0020] As a preferred technical solution of this utility model, the sliding groove of the male connector is an L-shaped limiting groove, which restricts the rotary button to rotate only 90°.

[0021] The beneficial effects of this utility model are as follows:

[0022] 1. Extremely simple operation: It can be completed in two steps: straight insertion and rotation. It can also be operated blindly even when wearing gloves.

[0023] 2. Casting-friendly: T-slots can be cast directly without complex machining;

[0024] 3. Optimized sealing: The locking force is directly converted into sealing pressure, adapting to high-pressure water flow. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of this utility model;

[0026] Figure 2 This is a cross-sectional view of the present invention.

[0027] Reference numerals: 1. Male connector; 2. Female connector; 11. Insertion end; 12. Axial groove; 13. Rotary button; 14. Locking block; 21. Socket cavity; 22. T-shaped locking groove.

[0028] like Figures 1 to 2 As shown, this utility model proposes: a quick-release fire-fighting aluminum coupling casting, including a male connector and a female connector;

[0029] The male connector is integrally cast from aluminum alloy, with an insertion end at the front end and an interface for connecting fire hoses or equipment at the rear end; the insertion end has an axial groove on its side.

[0030] The rotary button passes through the slide groove and can rotate between a vertically inserted state and a horizontally locked state; a locking block is provided at the bottom of the button.

[0031] The female connector has a socket cavity that matches the insertion end of the male connector, and a T-shaped locking groove is formed in the cavity wall; the T-shaped locking groove is composed of a vertical guide groove and a horizontal locking groove connected together;

[0032] The sealing structure is provided on the end face of the male connector insertion end or the bottom of the female connector socket cavity;

[0033] When the male connector is vertically inserted into the female connector, the rotating button moves downward along the vertical guide groove of the T-shaped locking groove; after insertion, the rotating button moves to the horizontal position, and the locking block engages with the horizontal groove to form a horizontal mechanical lock.

[0034] The locking block of the rotary button is rectangular, and the shape of the horizontal slot matches it.

[0035] The rotary button has an anti-slip texture on its top.

[0036] The male connector has an L-shaped limiting groove, which restricts the rotary button to rotate only 90°.

[0037] Working principle:

[0038] When the male connector is vertically inserted into the socket of the female connector, the rotary button on the side of the male connector moves downwards along the vertical guide groove of the T-shaped locking groove of the female connector. After insertion to the limit position, rotating the button 90° clockwise causes the locking block at the bottom of the button to slide from the vertical guide groove into the horizontal locking groove, forming a lateral mechanical lock. During this process:

[0039] The locking block weds into the ramp surface of the horizontal groove, converting the water flow impact force into axial pressure and enhancing the compression of the sealing ring.

[0040] The L-shaped groove limits the rotation angle and prevents over-rotation failure;

[0041] The return spring provides locking force to prevent loosening due to vibration. To disassemble, rotate the button counterclockwise by 90° to disengage the locking block from the horizontal slot, then pull the male connector vertically out. Detailed Implementation Example 1

[0042] This sliding locking quick-release fire-fighting aluminum coupling casting features male and female connectors made of A356-T6 aluminum alloy die-casting. The male connector has an L-shaped groove on its insertion end and is fitted with a stainless steel rotary button. The female connector has a T-shaped locking groove and a horizontal locking groove on its socket side wall. During connection, the male connector is vertically inserted into the female connector, and the button slides down the vertical guide groove to the bottom. Rotating 90° clockwise causes the locking block to engage with the ramp surface of the horizontal locking groove, converting the water flow impact force into axial sealing pressure, tightening the fluororubber O-ring on the insertion end face. Simultaneously, the L-shaped groove provides a hard limit to prevent over-rotation. Disassembly involves rotating the button 90° counterclockwise to pull it out. The entire operation takes ≤3 seconds, and the tensile strength is ≥5.2kN.

[0043] 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.

[0044] 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 quick-release fire-fighting aluminum coupling casting, characterized in that... Includes male connector (1) and female connector (2); The male connector (1) is integrally cast from aluminum alloy, with an insertion end (11) at the front end and an interface for connecting fire hoses at the rear end; the insertion end (11) has an axial groove (12) on its side. A rotary button (13) passes through the slide groove and can rotate between a vertical insertion state and a horizontal locking state; a locking block (14) is provided at the bottom of the button. The female connector (2) is provided with a socket cavity (21) that matches the insertion end (11) of the male connector (1), and a T-shaped locking groove (22) is formed in the cavity wall; the T-shaped locking groove (22) is composed of a vertical guide groove and a horizontal locking groove connected together; The sealing structure is set on the end face of the insertion end (11) of the male connector (1) or the bottom of the socket cavity (21) of the female connector (2); When the male connector (1) is vertically inserted into the female connector (2), the rotating button (13) moves down along the vertical guide groove of the T-shaped locking groove (22); after being inserted into place, the rotating button (13) moves to the horizontal state, and the locking block (14) is engaged in the horizontal groove to form a horizontal mechanical lock.

2. The quick-release fire-fighting aluminum coupling casting according to claim 1, characterized in that: The locking block (14) of the rotary button (13) is rectangular, and the shape of the horizontal slot matches it.

3. The quick-release fire-fighting aluminum coupling casting according to claim 1, characterized in that: The rotary button (13) has anti-slip texture on its top.

4. A quick-release fire-fighting aluminum coupling casting according to claim 1, characterized in that: The male connector (1) has an L-shaped limiting groove, which restricts the rotary button (13) to rotate only 90°.

Images