Quick fire coupling device

Abstract

The utility model discloses a quick fire-fighting connector device, which belongs to the field of fire-fighting equipment and comprises a fixing head mounted on a fire hydrant and a connector inserted into the fixing head and fixedly connected with a fire hose. Clamping beads which move in the radial direction of the fixing head and are distributed in an annular array mode penetrate through the outer wall of the end, close to the connector, of the fixing head, and the end, close to the connector, of the fixing head is sleeved with a movable sleeve which moves to be close to or away from the connector and is used for enabling the clamping beads to be gathered inwards. And a first spring for resetting the movable sleeve is arranged on the inner side of the movable sleeve. According to the quick fire coupling device, by designing the movable clamping ball and the auxiliary mechanism, connection can be instantly completed through simple insertion and extrusion actions when the connector is inserted into the fixed head, so that the connection efficiency of the fire coupling is greatly improved, precious time is saved, and emergency rescue work is quicker and more effective.

Description

Technical Field

[0001] The utility model relates to the field of fire fighting equipment, in particular to a quick fire fighting interface device. Background Art

[0002] Firefighting equipment refers to various equipment and tools used to prevent, control and extinguish fires. They are important facilities to protect the safety of people's lives and property, and are widely used in various types of buildings, vehicles and industrial facilities.

[0003] The Chinese utility model patent with publication number CN220980600U discloses a convenient and fast fire interface device, in which a rotating rod in a fixed structure drives a screw rod to rotate on the inner wall of a support plate, and the rotating screw rod drives a clamp plate to move inward, so that the front and rear sides of the inner wall of the clamp plate are respectively fitted with the connecting pipes on the front and rear sides, and the straight rod plays a limiting role when the clamp plate moves inward to prevent the clamp plate from rotating with the screw rod. The rotating rod can make the operator hold the rotating rod and rotate it continuously without a guide due to its own characteristics. It is convenient and fast, ensuring the stable connection of the fire interface device and avoiding leakage during the use of the fire interface device. However, the operation of rotating the rotating rod still needs to continue for a certain period of time, and precious rescue time will be wasted regardless of disassembly and assembly. Therefore, it is easy to miss the best rescue opportunity in actual application, and the practicality is poor.

[0004] Therefore, a quick fire protection interface device is provided to solve the above problems. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The utility model provides a quick fire interface device, aiming to solve the problem of poor practicability caused by much time wasted in connection of the existing fire interface device proposed in the background technology.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a quick fire interface device, comprising a fixed head installed on a fire hydrant and a connecting head plugged into the fixed head and fixedly connected to the fire hose.

[0009] In order to improve the connection efficiency of the fire protection interface, the outer wall of one end of the fixed head close to the connecting head is penetrated by a card bead which moves radially along the fixed head and is distributed in a ring array, and the end of the fixed head close to the connecting head is provided with a movable sleeve which moves close to or away from the connecting head to make the card bead gather inward, the inner side of the movable sleeve is provided with a first spring for resetting the movable sleeve, an annular groove is provided on the connecting head at the position corresponding to the card bead, and the fixed head is provided with an elastic sealing gasket which abuts against the interface of the connecting head.

[0010] The movable sleeve is provided with an auxiliary mechanism for driving the movable sleeve to move, and the auxiliary mechanism includes a gear lever that gathers inwardly or disperses outwardly and is distributed in an annular array on the movable sleeve, a second spring that is sleeved on the outside of the gear lever and whose two ends are respectively connected to the inner wall of the movable sleeve and the gear lever, and a groove arranged on the gear lever near one end of the fixed head; movable clamping beads are provided in the fixed head, and these clamping beads are distributed in an annular array and can be gathered inwardly to lock the connecting head, and at the same time, cooperate with the auxiliary mechanism so that when the connecting head is inserted into the fixed head, the movable sleeve can be pushed back synchronously by the gear lever to unlock the clamping beads, until the connecting head is pressed against the elastic sealing gasket, the gear lever is guided outward by the port of the fixed head through the groove, so that the movable sleeve loses thrust and resets under the action of the first spring, so that the clamping beads are gathered inward again and clamped into the annular groove of the connecting head. The entire connection operation only requires an insertion and extrusion action, which can be completed instantly, thereby improving the connection efficiency of the fire interface, saving time, and making it easier to seize the best rescue opportunity.

[0011] Preferably, in order to achieve locking and unlocking of the card bead by the movable sleeve, the inner wall of the movable sleeve has a top ring protruding inwardly for squeezing the card bead toward the inside of the fixed head; when the first spring is not under force, the top ring on the movable sleeve is kept aligned with the card bead, thereby keeping the card bead gathered inwardly, and when the movable sleeve is moved, the top ring and the card bead are staggered to achieve unlocking.

[0012] Preferably, in order to ensure that the first spring can push the movable sleeve to reset, the two ends of the first spring are respectively connected to the outer wall of the fixed head and the top ring.

[0013] Preferably, in order to prevent the movable sleeve from falling off the fixed head, a limiting ring is embedded on the outside of one end of the fixed head close to the connecting head and contacts the side of the top ring away from the first spring; when the first spring pushes the movable sleeve outward, the top ring is prevented from passing over the card bead, so that the limiting ring prevents the movable sleeve from continuing to be pushed outward, thereby preventing it from falling off.

[0014] Preferably, in order to facilitate the insertion of the connecting head into the fixed head and the connection of the water hose, the connecting head includes a middle section, an insertion section fixedly connected to the middle section at one end close to the fixed head for insertion into the fixed head, and a water hose joint fixedly connected to the middle section at one end away from the insertion section for connecting the water hose; the design of the connecting head allows the two operations of inserting the fixed head and connecting the water hose to be performed independently, which greatly improves the convenience of use.

[0015] Preferably, in order to facilitate the insertion of the connecting head into the fixed head interface, the outer diameter of the insertion section is smaller than the inner diameter of the fixed head interface; since the outer diameter of the insertion section is smaller than the inner diameter of the fixed head interface, the connecting head can be easily inserted into the fixed head without excessive force or tools, thereby improving the convenience of operation.

[0016] Preferably, in order to facilitate the insertion of the connecting head so that the shift rod can be pressed to drive the movable sleeve to move, the insertion section has a latching protrusion with an outer diameter equal to the outer diameter of the fixed head; through the design of the latching protrusion, the user can directly press the shift rod to drive the movable sleeve to move without the need for other tools or complicated operations, thereby greatly improving the convenience of connection.

[0017] Preferably, in order to facilitate the application of force, handles are symmetrically arranged on the outer wall of the middle section; when the connecting head is inserted into the fixing head, force can be applied through the two handles, which makes it easier to hold, thereby saving effort and being more stable.

[0018] (III) Beneficial effects

[0019] This quick fire interface device is designed with movable card beads and auxiliary mechanisms. When the connecting head is inserted into the fixed head, the connection can be completed instantly through a simple insertion and squeezing action, which greatly improves the connection efficiency of the fire interface, saves precious time, and makes emergency rescue work more rapid and effective.

[0020] After the connection of the quick fire-fighting interface device is completed, the card bead will be tightly inserted into the ring groove of the connector under the action of the first spring, ensuring the stability and sealing of the connection. Together with the elastic sealing pad, the leakage of liquids such as water or foam can be prevented.

[0021] The quick fire-fighting interface device has handles symmetrically arranged on the outer wall of the middle section of the connector, which facilitates the application of force when inserting the connector, making the operation more labor-saving and stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a quick fire protection interface device;

[0023] Figure 2 It is a schematic diagram of the explosion structure of a quick fire-fighting interface device;

[0024] Figure 3 It is a schematic diagram of the cross-sectional structure of a quick fire-fighting interface device;

[0025] Figure 4 for Figure 3 Schematic diagram of the structure enlarged at point A in the middle.

[0026] In the figure:

[0027] 1. Fixed head; 11. Movable sleeve; 111. Top ring; 12. Card bead; 13. First spring;

[0028] 14. Limiting ring; 15. Elastic sealing pad;

[0029] 2. Connector; 21. Middle section; 22. Insertion section; 221. Ring groove; 222. Clamping protrusion;

[0030] 23. Hose joint; 24. Handle;

[0031] 3. Auxiliary mechanism; 31. Shift lever; 311. Bevel; 32. Second spring. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] See also Figure 1-Figure 4 The utility model provides a technical solution: a quick fire interface device, including a fixed head 1 installed on a fire hydrant and a connecting head 2 plugged into the fixed head 1 and fixedly connected to a fire hose.

[0034] The outer wall of one end of the fixed head 1 close to the connecting head 2 is penetrated by a card bead 12 which moves radially along the fixed head 1 and is distributed in a ring array. The end of the fixed head 1 close to the connecting head 2 is provided with a movable sleeve 11 which moves close to or away from the connecting head 2 and is used to gather the card beads 12 inward. The inner side of the movable sleeve 11 is provided with a first spring 13 for resetting the movable sleeve 11. The two ends of the first spring 13 are respectively connected to the outer wall of the fixed head 1 and the top ring 111. An annular groove 221 is provided at the position of the connecting head 2 corresponding to the card bead 12, wherein the inner wall of the movable sleeve 11 has a top ring 111 which protrudes inward and is used to squeeze the card bead 12 to gather toward the inner side of the fixed head 1. The fixed head 1 has an elastic sealing gasket 15 which abuts against the interface of the connecting head 2.

[0035] An auxiliary mechanism 3 for driving the movable sleeve 11 to move is provided on the movable sleeve 11, and the auxiliary mechanism 3 includes a gear rod 31 that gathers inward or disperses outward and is distributed in a ring array on the movable sleeve 11, a second spring 32 that is sleeved on the outside of the gear rod 31 and whose two ends are respectively connected to the inner wall of the movable sleeve 11 and the gear rod 31, and a groove 311 arranged on the end of the gear rod 31 close to the fixed head 1.

[0036] When in use, movable card beads 12 are arranged in the fixed head 1. These card beads are distributed in a ring array and can gather inward to lock the connector 2. At the same time, with the auxiliary mechanism 3, when the connector 2 is inserted into the fixed head 1, the movable sleeve 11 can be pushed back synchronously by the gear rod 31, thereby unlocking the card beads 12. Until the connector 2 is pressed against the elastic sealing pad 15, the gear rod 31 is guided outward by the port of the fixed head 1 through the groove 311, so that the movable sleeve 11 loses its thrust and resets under the action of the first spring 13, so that the card beads 12 are gathered inward again and stuck in the annular groove 221 of the connector 2. The entire connection operation only requires an insertion and squeezing action, which can be completed instantly. The connection efficiency of the fire-fighting interface is improved, time is saved, and it is easier to seize the best rescue opportunity. During disassembly, it is only necessary to push the movable sleeve 11 away from the connector 2 to drive the top ring 111 to disengage from the position of the card bead 12, unlock the card bead 12, and lift the connector 2 a short distance under the reaction force of the elastic sealing pad 15 until the movable sleeve 11 drives the shift rod 31 to move to the front end of the protrusion on the outer wall of the connector 2, and under the action of the second spring 32, the shift rod 31 is reset and inserted between the port of the fixed head 1 and the protrusion on the outer wall of the connector 2, and the movable sleeve 11 is released to reset it under the action of the first spring 13, thereby pushing the connector 2 out of the fixed head 1 through the shift rod 31 to complete the disassembly.

[0037] It should be noted that a limiting ring 14 is embedded on the outside of one end of the fixed head 1 close to the connecting head 2 and contacts the side of the top ring 111 away from the first spring 13; when the first spring 13 pushes the movable sleeve 11 outward, the top ring 111 is prevented from passing over the card bead 12, so that the limiting ring 14 is used to prevent the movable sleeve 11 from continuing to be pushed outward, thereby preventing it from falling off.

[0038] Specifically, the connecting head 2 includes an intermediate section 21, an insertion section 22 fixedly connected to the intermediate section 21 at one end close to the fixed head 1 for being inserted into the fixed head 1, and a water hose connector 23 fixedly connected to the intermediate section 21 at one end away from the insertion section 22 for connecting the water hose, wherein the outer diameter of the insertion section 22 is smaller than the inner diameter of the interface of the fixed head 1, and the insertion section 22 has a clamping protrusion 222 with an outer diameter equal to the outer diameter of the fixed head 1; when connecting the water hose, the water hose can be installed and bound through the water hose connector 23, which greatly improves the convenience of use, because the outer diameter of the insertion section 22 is smaller than the inner diameter of the interface of the fixed head 1, the connecting head 2 can be easily inserted into the fixed head 1 without excessive force or tools, thereby improving the convenience of operation, and through the design of the clamping protrusion 222, the user can directly press the gear lever 31 to drive the movable sleeve 11 to move without the need for other tools or complicated operations, thereby greatly improving the convenience of connection.

[0039] Furthermore, handles 24 are symmetrically arranged on the outer wall of the middle section 21; when the connector 2 is inserted into the fixing head, force can be applied through the two handles 24, which makes it easier to hold, thereby saving effort and being more stable.

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A quick fire interface device, comprising a fixed head (1) mounted on a fire hydrant and a connector (2) plugged into the fixed head (1) and fixedly connected to a fire hose, characterized in that: The outer wall of one end of the fixed head (1) close to the connecting head (2) is penetrated by beads (12) which move radially along the fixed head (1) and are distributed in a ring array; the end of the fixed head (1) close to the connecting head (2) is sleeved with a movable sleeve (11) which moves closer to or away from the connecting head (2) and is used to make the beads (12) gather inward; the inner side of the movable sleeve (11) is provided with a first spring (13) for resetting the movable sleeve (11); an annular groove (221) is provided on the connecting head (2) at a position corresponding to the beads (12); and the fixed head (1) is provided with an elastic sealing pad (15) which abuts against the interface of the connecting head (2); The movable sleeve (11) is provided with an auxiliary mechanism (3) for driving the movable sleeve (11) to move, and the auxiliary mechanism (3) comprises a gear rod (31) which gathers inwardly or disperses outwardly and is distributed in a ring array on the movable sleeve (11), a second spring (32) which is sleeved on the outside of the gear rod (31) and whose two ends are respectively connected to the inner wall of the movable sleeve (11) and the gear rod (31), and a groove (311) provided on one end of the gear rod (31) close to the fixed head (1).

2. A quick fire protection interface device according to claim 1, characterized in that: The inner wall of the movable sleeve (11) has a top ring (111) protruding inwardly and used for squeezing the clamping bead (12) to be retracted toward the inner side of the fixed head (1).

3. A quick fire protection interface device according to claim 2, characterized in that: Two ends of the first spring (13) are respectively connected to the outer wall of the fixing head (1) and the top ring (111).

4. A quick fire protection interface device according to claim 3, characterized in that: A limiting ring (14) is embedded on the outside of one end of the fixing head (1) close to the connecting head (2) and is in contact with a side of the top ring (111) away from the first spring (13).

5. A quick fire protection interface device according to claim 4, characterized in that: The connecting head (2) comprises a middle section (21), an insertion section (22) fixedly connected to an end of the middle section (21) close to the fixed head (1) and used for being inserted into the fixed head (1), and a water hose connector (23) fixedly connected to an end of the middle section (21) far from the insertion section (22) and used for connecting a water hose.

6. A quick fire protection interface device according to claim 5, characterized in that: The outer diameter of the insertion section (22) is smaller than the inner diameter of the interface of the fixing head (1).

7. A quick fire protection interface device according to claim 6, characterized in that: The insertion section (22) has a locking protrusion (222) with an outer diameter equal to the outer diameter of the fixing head (1).

8. A quick fire protection interface device according to claim 7, characterized in that: A handle (24) is symmetrically arranged on the outer wall of the middle section (21).

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