High-stability fire hose coupling

Abstract

The utility model relates to fire water gun technical field, concretely relates to a high stability fire water gun joint, including water gun body and water hose, the both ends of water gun body are inlet and outlet respectively, still include the joint subassembly, the joint subassembly includes the support ring of fixed setting in the water gun body near one side of inlet, the support ring is equipped with a plurality of first slot in the circumferential direction, first lock block is rotatably connected in the first slot, the end of water hose is fixedly set up with a plurality of and the first slot is adapted to insert the block, second lock block is rotatably connected on the insert block, still be provided with the locking piece on the water gun body, and it drives first lock block and second lock block to rotate to lock water gun body and water hose. The insert block inserts the corresponding first slot, when water gun body and water hose abut, first lock block and second lock block abut, and the fireman drives first lock block and second lock block to rotate through the locking piece to lock water gun body and water hose.

Description

Technical Field

[0001] This utility model relates to the field of fire hose technology, specifically to a highly stable fire hose coupling. Background Technology

[0002] Chinese patent publication number "CN215387204U" entitled "A Snap-on Fire Hose" includes a fire hose body, a snap-on component, and a hose end. The fire hose body has several notches along its edge, each containing a rotating shaft. The snap-on component has a shaft hole. A spring is located on the inner wall of the fire hose body, and the snap-on component is installed within the notches. One end of the spring is connected to the inner wall of the fire hose body, and the other end is connected to an upper extension plate. The snap-on component has a downwardly extending lower extension plate, and an outer triangular block on the outer side of the lower extension plate. The outer triangular block has a first inclined surface that gradually slopes outward from bottom to top. The hose end has a locking slot. The fire hose body is inserted into the hose end, and the snap-on component positions the fire hose body and hose end. Inserting the fire hose body into the hose end completes the connection between the fire hose body and the hose end, making installation convenient and efficient.

[0003] However, when installing the water gun body and the water hose, the buckles inside the water gun body will remain in an initial position under the action of the spring. This will prevent the water hose from being inserted into the water gun body. Therefore, firefighters need to manually rotate each buckle inward before they can complete the insertion of the water hose and the water gun body. This will undoubtedly greatly increase the difficulty of installation and slow down the connection speed of the water gun body and the water hose. Utility Model Content

[0004] The purpose of this invention is to provide a highly stable fire hose coupling to address the aforementioned shortcomings in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A high-stability fire hose coupling includes a hose nozzle body and a hose. The hose nozzle body has an inlet and an outlet at its two ends, respectively. The coupling assembly includes a support ring fixedly disposed on the hose nozzle body near the inlet. The support ring has multiple first slots circumferentially formed. A first locking block is rotatably connected to each of the first slots. Multiple inserts adapted to the first slots are fixedly disposed at the ends of the hose. A second locking block is rotatably connected to each insert. The hose nozzle body also has a locking element that drives the first and second locking blocks to rotate, thereby locking the hose nozzle body and the hose.

[0007] Furthermore, both the first and second locking blocks are semi-circular in shape and can form a circular locking block.

[0008] Furthermore, the locking element includes a drive gear fixedly connected to one end of the rotating shaft of the first locking block, a drive rack slidably connected inside the support ring, the drive gear and the drive rack meshing together, and one end of each drive rack being connected to the control unit for transmission.

[0009] Furthermore, the control unit includes a control ring threadedly connected to the water gun body, and each of the drive racks has a slider fixedly connected to one end near the control ring. Each slider is slidably connected in a groove on the control ring, and the groove is arranged in a ring shape.

[0010] Furthermore, when the control ring abuts against the support ring, the contact surfaces of the first locking block and the second locking block are perpendicular to the axial direction of the water gun body.

[0011] Furthermore, a reset torsion spring is fixedly installed between the first locking block and the support ring.

[0012] In the above technical solution, the high-stability fire hose coupling provided by this utility model has the following beneficial effects:

[0013] When connecting the water gun body and the water hose using the set fastener assembly, the insert block is inserted into the corresponding first slot. When the water gun body and the water hose come into contact, the first locking block and the second locking block come into contact. The firefighter drives the first locking block and the second locking block to rotate through the locking component, thereby locking the water gun body and the water hose.

[0014] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this disclosure.

[0015] This application provides an overview of various implementations or examples of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0017] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0018] Figure 2 This is a schematic diagram of the water gun body structure provided in an embodiment of the present utility model;

[0019] Figure 3 This is a partially enlarged structural diagram of embodiment A of the present utility model;

[0020] Figure 4 A schematic diagram of the water hose structure provided for an embodiment of this utility model;

[0021] Figure 5 This is a cross-sectional view of the water gun body and water hose connection provided in an embodiment of the present utility model;

[0022] Figure 6 This is a schematic diagram of the locking component structure provided in an embodiment of the present utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] Water gun body; 11. Water outlet; 12. Water inlet;

[0025] Water hose;

[0026] 31. Connecting assembly; 32. Support ring; 33. First slot; 34. First locking block; 35. Insert block; 36. Second locking block;

[0027] Locking element; 41. Drive gear; 42. Drive rack; 43. Control ring; 44. Slider; 45. Slide groove;

[0028] Return torsion spring. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0030] Please see Figure 1-6 A high-stability fire hose coupling includes a fire hose body 1 and a hose 2. The fire hose body 1 has an inlet 12 and an outlet 11 at its two ends. The coupling assembly 3 includes a support ring 31 fixedly disposed on the side of the fire hose body 1 near the inlet 12. The support ring 31 has multiple first slots 32 in the circumferential direction. A first locking block 33 is rotatably connected in the first slot 32. Multiple inserts 34 adapted to the first slots 32 are fixedly disposed at the ends of the hose 2. A second locking block 35 is rotatably connected to the inserts 34. The fire hose body 1 is also provided with a locking member 4, which drives the first locking block 33 and the second locking block 35 to rotate, so as to lock the fire hose body 1 and the hose 2.

[0031] Furthermore, both the first locking block 33 and the second locking block 35 are semi-circular and can form a circular locking block. Since the first locking block 33 and the second locking block 35 are two identical semi-circles, when the water gun body 1 and the water hose 2 come into contact, the first locking block 33 and the second locking block 35 are completely in contact and fit together. Therefore, the locking member 4 can drive the first locking block 33 and the second locking block 35 to rotate. The locking block formed by the rotated first locking block 33 and the second locking block 35, together with the first slot 32 and the insert block 34, forms a locking block. The locking block is limited by the first slot 32 and the insert block 34, thereby locking the water gun body 1 and the water hose 2.

[0032] Understandably, the rotation axis of the first locking block 33 and the rotation axis of the second locking block 35 are respectively set on opposite sides to avoid interference; and the connection between the rotation axis and the corresponding locking block is also set in a semi-circle to further avoid motion interference.

[0033] Furthermore, the locking member 4 includes a drive gear 41 fixedly connected to one end of the rotating shaft of the first locking block 33, and a drive rack 42 slidably connected inside the support ring 31. The drive gear 41 and the drive rack 42 are meshed together, and one end of each drive rack 42 is connected to the control unit. The control unit includes a control ring 43 threadedly connected to the water gun body 1. Each drive rack 42 has a slider 44 fixedly connected to one end near the control ring 43, and each slider 44 is slidably connected to a groove 45 on the control ring 43. The groove 45 is annularly arranged.

[0034] The control ring 43 rotates and moves toward the water belt 2. The movement of the control ring 43 drives the drive rack 42 to move through the slide groove 45. The movement of the drive rack 42 drives the drive gear 41 to rotate. The rotation of the drive gear 41 drives the first locking block 33 to rotate. The first locking block 33 drives the second locking block 35 to rotate, thereby forming a lock.

[0035] Furthermore, when the control ring 43 abuts against the support ring 31, the abutting surfaces of the first locking block 33 and the second locking block 35 are perpendicular to the axial direction of the water gun body 1.

[0036] When the control ring 43 rotates and moves onto the support ring 31 (it is limited by the support ring 31 and cannot continue to rotate), the surfaces of the first locking block 33 and the second locking block 35 that abut against each other are set perpendicular to the axial direction of the water gun body 1, and its locking effect is stronger.

[0037] Understandably, a limiting ring (not shown in the figure) can also be fixedly installed on the water gun body 1. When the control ring 43 abuts against the limiting ring and cannot move, the surfaces of the first locking block 33 and the second locking block 35 that abut against each other are flush with the bottom surface of the first slot 32, which can release the connection between the water hose 2 and the fire gun; or an indicator mark can be set on the control ring 43 and the support ring 31 to remind firefighters that when they turn to this position, the connection between the water hose 2 and the fire gun can be released. This is a common technical means used by those skilled in the art and will not be described in detail here.

[0038] Furthermore, a reset torsion spring 5 is fixedly provided between the first locking block 33 and the support ring 31. The reset torsion spring 5 is used to give the first locking block 33 an initial position, thereby preventing the arc-shaped surface of the first locking block 33 from affecting the insertion of the insert block 34 during the insertion of the insert block 34 into the first slot 32; similarly, a torsion spring (not shown in the figure) can also be provided between the second locking block 35 and the insert block 34 to give the second locking block 35 an initial position.

[0039] The above description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A high-stability fire hose coupling, comprising a hose body (1) and a hose (2), wherein the two ends of the hose body (1) are an inlet (12) and an outlet (11), characterized in that: It also includes a fastening assembly (3), which includes a support ring (31) fixedly disposed on the side of the water gun body (1) near the water inlet (12). The support ring (31) has multiple first slots (32) in the circumferential direction. A first locking block (33) is rotatably connected in the first slot (32). Multiple inserts (34) that are adapted to the first slots (32) are fixedly disposed at the end of the water hose (2). A second locking block (35) is rotatably connected on the inserts (34). A locking member (4) is also provided on the water gun body (1), which drives the first locking block (33) and the second locking block (35) to rotate, so as to lock the water gun body (1) and the water hose (2).

2. The high-stability fire hose coupling according to claim 1, characterized in that, The first locking block (33) and the second locking block (35) are both semi-circular and can form a circular locking block.

3. The high-stability fire hose coupling according to claim 1, characterized in that, The locking member (4) includes a drive gear (41) fixedly connected to one end of the rotating shaft of the first locking block (33), and a drive rack (42) slidably connected inside the support ring (31). The drive gear (41) and the drive rack (42) are meshed and connected, and one end of each drive rack (42) is connected to the control unit for transmission.

4. A high-stability fire hose coupling according to claim 3, characterized in that, The control unit includes a control ring (43) threaded onto the water gun body (1). Each drive rack (42) has a slider (44) fixedly connected to one end near the control ring (43). Each slider (44) is slidably connected to a groove (45) on the control ring (43). The groove (45) is arranged in a ring shape.

5. A high-stability fire hose coupling according to claim 4, characterized in that, When the control ring (43) abuts against the support ring (31), the contact surfaces of the first locking block (33) and the second locking block (35) are perpendicular to the axial direction of the water gun body (1).

6. A high-stability fire hose coupling according to claim 1, characterized in that, A reset torsion spring (5) is fixedly provided between the first locking block (33) and the support ring (31).

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