A detachable and reusable hose connector and fire hose

Abstract

A detachable and reusable hose connector and a fire hose, the hose connector comprises a connector body, a control button movably arranged on the connector body, a slidably arranged locking ring, a traction mechanism arranged between the control button and the locking ring and controlling the movement of the locking ring, the locking ring is provided with a convex ring, the connector body comprises an outer tube sleeved on the outside of the hose, an inner tube for being inserted into the inside of the hose, the outer end of the inner tube uniformly extends outwardly along the circumferential direction with a plurality of elastic positioning teeth, an inner extrusion sealing ring is sleeved on the outer side wall of the elastic positioning teeth, the control button is adjusted so that the locking ring has a locking position and an unlocking position, when the locking ring is in the locking position, the convex ring abuts against the inner side wall of the elastic positioning teeth, when the locking ring is in the unlocking position, the convex ring is separated from the inner side wall of the elastic positioning teeth, two hose bodies can be quickly connected or separated by rotating the control button, the setting of the hose connector can quickly change the hose length, it is suitable for a variety of fire fighting occasions, and the hose connector is reusable.

Description

Technical Field

[0001] The invention relates to a detachable and reusable hose connector and a fire hose. Background Art

[0002] The hoses in the prior art usually need to be fixedly connected to the pipe fittings, and the connection between the hoses also needs to be achieved through hose connectors fixed on the hoses. The connections between the hoses and the pipe fittings and between the hoses are fixed by professional equipment through tying or winding with steel wires, etc. With such connection, the hoses are not easy to disassemble, so that the length of the hoses cannot be changed according to actual needs. Forcible removal will damage the connector, reduce the sealing of the hose, and reduce the service life of the hose and the hose connector. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a detachable and reusable hose connector.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a detachable and reusable hose connector, comprising a connector body formed as an integral whole, a control button movably arranged on the connector body, a locking ring slidably arranged along the center line direction, and a traction mechanism arranged between the control button and the locking ring and controlling the movement of the locking ring, the locking ring having a circle of convex rings arched radially outward, the connector body comprising an outer tube sleeved on the outside of the hose, an inner tube located inside the outer tube for being inserted into the hose, the outer end of the inner tube having a plurality of elastic positioning teeth extending outward uniformly along the circumferential direction, an inner extrusion sealing ring sleeved on the outer side walls of the plurality of elastic positioning teeth, the control button being adjusted so that the locking ring has a locking position and an unlocking position, when the locking ring is in the locking position, the convex ring abuts against the inner side wall of the elastic positioning tooth, and when the locking ring is in the unlocking position, the convex ring is separated from the inner side wall of the elastic positioning tooth.

[0005] In some embodiments, the locking ring includes a pulling portion located on the inner side of the plurality of elastic positioning teeth, a blocking portion located on the axially outer side of the inner extrusion sealing ring, and an inclined wall connected between the pulling portion and the blocking portion, and the convex ring is arranged on the radial outer side wall of the inclined wall.

[0006] In some embodiments, a reinforced sealing ring is sleeved on the locking ring. When the locking ring is in a locked position, the reinforced sealing ring is sealingly fitted with the inner extrusion sealing ring, and the reinforced sealing ring is sealingly fitted with the blocking portion. When the locking ring is in an unlocked position, the reinforced sealing ring is detached from the inner extrusion sealing ring.

[0007] In some embodiments, a control cavity is provided on the connector body, and the control button is rotatably provided in the control cavity. The rotation centerline of the control button is perpendicular to the centerline of the connector body. At least one sealing ring is provided on the control button, and the sealing ring is tightly against the inner wall of the control cavity.

[0008] In some embodiments, a plurality of traction channels connected to the control cavity are provided on the connector body, and the openings of the traction channels are respectively located on the cross-sectional end surfaces of the inner tube. The traction mechanism includes a plurality of traction ropes fixed on the control button, and the other ends of the traction ropes extend out of the cross-sectional end surface of the inner tube and are connected to the pulling portion.

[0009] In some embodiments, the outer end portion of the outer tube has a plurality of connecting teeth extending uniformly outward along the circumferential direction, and the plurality of connecting teeth are cooperatively provided with a circle of external threads. The detachable and reusable hose connector also includes an extruded sleeve for cooperating with the threads of the plurality of connecting teeth, and the extruded sleeve is screwed relative to the threads of the connecting teeth to cause the plurality of connecting teeth to radially retract.

[0010] In certain embodiments, the inner extrusion sealing ring at least partially corresponds to the connecting tooth in radial direction, and the inner extrusion sealing ring is at least partially located on the inner side of the connecting tooth.

[0011] In some embodiments, there are two locking control rings, which are respectively distributed on both sides of the connector body. The control button is located in the middle of the connector body. Rotating the control button synchronously controls the two locking control rings through a traction mechanism.

[0012] Another technical problem to be solved by the present invention is to provide a fire hose.

[0013] In order to solve the above technical problems, the technical solution adopted by the present invention is: a fire hose, comprising a detachable and reusable hose connector as described in any one of the above embodiments, the hose also includes at least two hose bodies, and every two hose bodies are connected by the detachable and reusable hose connector.

[0014] The scope of the present invention is not limited to the technical solutions formed by a specific combination of the above technical features, but also includes other technical solutions formed by any combination of the above technical features or their equivalent features. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in this application.

[0015] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: the detachable and reusable hose connector and fire hose provided by the present invention can quickly connect or separate the ends of the two hose bodies by rotating the control button, and the setting of the hose connector can quickly change the length of the hose, which is easy to use and is particularly suitable for firefighting occasions. The length of the fire hose can be quickly adjusted to extinguish the fire in the first time to prevent the disaster from expanding and protect the safety of people and property, and the hose connector can be reused. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Attached Figure 1 This is a schematic diagram of the hose connector structure in the connected state;

[0017] Attached Figure 2 This is a schematic diagram of the hose connector structure in a disassembled state;

[0018] Attached Figure 3 It is a schematic diagram of the locking control circle structure;

[0019] Among them: 1. joint body; 11. outer tube; 12. inner tube; 13. elastic positioning teeth; 14. inner extrusion sealing ring; 15. connecting teeth; 16. extrusion sleeve; 2. control button; 21. sealing ring; 3. locking control ring; 31. convex ring; 32. pulling part; 33. blocking part; 4. traction mechanism; 41. traction rope; 5. reinforced sealing ring. DETAILED DESCRIPTION

[0020] The present invention is analyzed in detail below with reference to the accompanying drawings.

[0021] As attached Figure 1-2 A detachable and reusable hose connector is shown, which is arranged between two hoses to connect the two hoses. The connector includes a connector body 1 that is integrally formed to form a whole. The connector body 1 includes an outer tube 11 that is sleeved on the outside of the hose, and an inner tube 12 that is located inside the outer tube 11 and is used to be inserted into the hose. The outer end of the inner tube 12 is uniformly extended outward along the circumferential direction with a plurality of elastic positioning teeth 13, and the outer side walls of the plurality of elastic positioning teeth 13 are sleeved with an inner extrusion sealing ring 14. The connector body 1 is also provided with a plurality of traction channels connected to the control cavity, and the openings of the traction channels are respectively located on the cross-sectional end surface of the inner tube. The traction mechanism 4 includes a plurality of traction ropes 41 fixed on the control button 2, and the other end of the traction rope 41 extends out of the cross-sectional end surface of the inner tube and is connected to the pulling portion 32. The outer end of the outer tube 11 is uniformly extended outward along the circumferential direction with a plurality of connecting teeth 15, and the plurality of connecting teeth 15 are cooperatively provided with a circle of external threads.

[0022] The joint also has a control button 2 movably arranged on the joint body 1, a locking ring 3 slidably arranged along the center line direction, and a traction mechanism 4 arranged between the control button 2 and the locking ring 3 and controlling the movement of the locking ring 3. Figure 3 As shown, the locking ring 3 includes a pulling portion 32 located on the inner side of the plurality of elastic positioning teeth 13, a blocking portion 33 located on the axial outer side of the inner extrusion sealing ring 14, and an inclined wall connected between the pulling portion 32 and the blocking portion 33, wherein the radial outer side wall of the inclined wall has a circle of radially outwardly arched convex rings 31.

[0023] A circle of reinforced sealing ring 5 is sleeved on the locking control ring 3, a control cavity is set on the joint body 1, and the control button 2 is rotatably set in the control cavity. The rotation center line of the control button 2 is perpendicular to the center line of the joint body 1. A sealing ring 21 is sleeved on the control button 2, and the sealing ring 21 is tightly against the inner wall of the control cavity.

[0024] A reinforcing sealing ring 5 is sleeved on the locking ring 3. By adjusting the control button 2, the locking ring 3 can have a locking position and an unlocking position. When the locking ring 3 is in the locking position, as shown in the attached Figure 1 As shown, the convex ring 31 abuts against the inner wall of the elastic positioning teeth 13, and the sealing ring 5 is strengthened to fit with the inner squeeze sealing ring 14. The convex ring 31 overcomes the elastic deformation force of the elastic positioning teeth 13 and the inner squeeze sealing ring 14 and radially squeezes outward so that the inner squeeze sealing ring 14 squeezes the hose. The extrusion sleeve 16 at the outer end of the outer tube 11 is screwed relative to the connecting teeth 15 to cause the multiple connecting teeth 15 to radially contract and squeeze the hose. The inner squeeze sealing ring 14 and the connecting teeth 15 are relatively squeezed so that the hose connector is sealed and connected to the hose. The sealing ring 5 is strengthened to fit with the blocking portion 33 to strengthen the sealing of the hose connector. At the same time, when the locking ring 3 is in the unlocking position, the convex ring 31 is separated from the inner wall of the elastic positioning teeth 13, and the inner squeeze sealing ring 14 and the connecting teeth 15 are no longer relatively squeezed, so that the hose connector can be removed from the hose.

[0025] In this embodiment, there are two locking control rings 3, which are respectively distributed on both sides of the connector body 1. The control button 2 is located in the middle of the connector body 1. Rotating the control button 2 synchronously controls the two locking control rings 3 through the traction mechanism 4.

[0026] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A detachable and reusable hose connector, characterized in that: The invention comprises a joint body (1) formed as a whole by integral molding, a control button (2) movably arranged on the joint body (1), a locking ring (3) slidably arranged along the center line direction, and a traction mechanism (4) arranged between the control button (2) and the locking ring (3) and controlling the movement of the locking ring (3), wherein the locking ring (3) has a convex ring (31) that arches radially outward, the joint body (1) comprises an outer tube (11) sleeved on the outside of a hose, and an inner tube (12) located inside the outer tube (11) and inserted into the inside of the hose, the outer end of the inner tube (12) uniformly extending outwardly along the circumferential direction has a plurality of elastic positioning teeth (13), and an inner extrusion sealing ring (14) is sleeved on the outer side wall of the plurality of elastic positioning teeth (13), and the control button (2) is adjusted so that the locking ring (3) is in a state of being pressed into the outer side of the hose. The locking ring (3) has a locking position and an unlocking position. When the locking ring (3) is in the locking position, the convex ring (31) abuts against the inner side wall of the elastic positioning tooth (13). When the locking ring (3) is in the unlocking position, the convex ring (31) is separated from the inner side wall of the elastic positioning tooth (13). The locking ring (3) comprises a blocking portion (33) located axially outside the inner extrusion sealing ring (14). A reinforcing sealing ring (5) is sleeved on the locking ring (3). When the locking ring (3) is in the locking position, the reinforcing sealing ring (5) is in sealing contact with the inner extrusion sealing ring (14). The reinforcing sealing ring (5) is in sealing contact with the blocking portion (33). When the locking ring (3) is in the unlocking position, the reinforcing sealing ring (5) is separated from the inner extrusion sealing ring (14).

2. The detachable and reusable hose connector according to claim 1, characterized in that: The locking ring (3) further comprises a pulling portion (32) located inside the plurality of elastic positioning teeth (13), an inclined wall connected between the pulling portion (32) and the blocking portion (33), and the convex ring (31) is arranged on the radially outer side wall of the inclined wall.

3. The detachable and reusable hose connector according to claim 2, characterized in that: The connector body (1) is provided with a control cavity, the control button (2) is rotatably arranged in the control cavity, the rotation center line of the control button (2) is perpendicular to the center line of the connector body (1), and the control button (2) is sleeved with at least one circle of sealing ring (21), and the sealing ring (21) is tightly abutted against the inner wall of the control cavity.

4. The detachable and reusable hose connector according to claim 3, characterized in that: The connector body (1) is provided with a plurality of traction channels connected to the control chamber, and the openings of the traction channels are respectively located on the cross-sectional end surfaces of the inner tube. The traction mechanism (4) comprises a plurality of traction ropes (41) fixed to the control button (2), and the other ends of the traction ropes (41) extend out of the cross-sectional end surface of the inner tube and are connected to the pulling portion (32).

5. The detachable and reusable hose connector according to claim 4, characterized in that: The outer end portion of the outer tube (11) is provided with a plurality of connecting teeth (15) extending uniformly outwardly in the circumferential direction, and the plurality of connecting teeth (15) are provided with a circle of external threads in cooperation with each other. The detachable and reusable hose connector further comprises an extruded outer sleeve (16) for threadably cooperating with the plurality of connecting teeth, and the extruded outer sleeve (16) is screwed relative to the thread of the connecting teeth (15) to cause the plurality of connecting teeth (15) to be radially retracted.

6. The detachable and reusable hose connector according to claim 5, characterized in that: The inner extrusion sealing ring (14) at least partially corresponds radially to the connecting tooth (15), and the inner extrusion sealing ring (14) is at least partially located on the inner side of the connecting tooth (15).

7. The detachable and reusable hose connector according to claim 1, characterized in that: The locking control rings (3) are provided in two pieces and are respectively distributed on both sides of the joint body (1); the control button (2) is located in the middle of the joint body (1); the control button (2) is rotated to synchronously control the two locking control rings (3) through the traction mechanism (4).

8. A fire hose, comprising the detachable and reusable hose connector according to any one of claims 1 to 7, characterized in that: The fire hose comprises at least two hose bodies, and every two hose bodies are connected via the detachable and reusable hose connector.

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