Fire hose joint

Abstract

The utility model discloses a fire hose connector which comprises a fixing assembly, the fixing assembly comprises a connector, an open hole is formed in the center of the connector, a quick connector is installed at one end of the connector, a connecting groove is formed in the quick connector, a clamping block is arranged on one side of the quick connector, and a connecting flange is arranged at the other end of the connector. A limiting frame is fixedly arranged on the outer wall of the connecting flange in a welded mode, threaded holes are formed in the limiting frame, multiple sets of threaded holes are sequentially arranged and installed, threaded rods are detachably installed through the threaded holes, the threaded rods are matched with the threaded holes, a rotating handle is arranged at one end of each threaded rod, and a switch assembly used for controlling a water supply switch is arranged on one side of the connector. The switch assembly comprises a supporting frame, the supporting frame is fixed to the outer wall of the top of the connector, a control motor is arranged on the outer wall of the top of the supporting frame, a valve rod is connected to the bottom of the control motor, one end of the valve rod is rotatably connected into the connector, a switch valve is arranged at one end of the valve rod, and the switch valve is matched with the connector.

Description

Technical Field

[0001] The utility model relates to the technical field of fire hoses, in particular to a fire hose joint. Background Art

[0002] Fire hoses are hoses used to transport fire-retardant liquids such as high-pressure water or foam. Traditional fire hoses are lined with rubber and covered with woven linen. Advanced fire hoses are made of polymer materials such as polyurethane. Fire hoses are equipped with metal joints to assist in connecting the fire hose to the joints of fire hydrants or water supply trucks, making it easier to supply water.

[0003] After searching, the Chinese patent application number 201420638122.9 discloses a fire hose connector, including a main body and an appendage, the outer side of one end of the main body is a docking interface, the docking interface is connected to the interface of a water gun or a water source, an annular ring is welded on the side edge of the annular cavity at the center of the outer side of the other end of the main body, the outer ring body of the annular ring is provided with a thread, the annular inner edge of one end of the pipe is aligned with the inner edge of one end of the annular surrounding edge, and is sealed by electric welding, one end of the appendage is an interface, the inner ring body inside the interface is provided with screws, one end of the sleeve is welded on the side edge of the annular cavity outside the other end of the appendage, one end of the belt body passes through the sleeve cavity, the outer port of one end of the belt body passes along the inner ring body of the sleeve, and covers the outer ring body of the pipe at one end of the main body, and the screws on the inner ring body at one end of the appendage are screwed into the threads on the outer ring body of the annular surrounding edge at one end of the main body. A fire hose connector in the above patent has the following shortcomings: the device does not have an effective limiting device at the fixed position, and is prone to falling off when the hose is pulled quickly, resulting in failure to connect normally for water supply. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and provides a fire hose connector.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A fire hose joint comprises a fixing assembly, wherein the fixing assembly comprises a connecting head, an opening is arranged in the center of the connecting head, a quick connector is installed at one end of the connecting head, the quick connector is provided with a connecting groove, a clamping block is arranged on one side of the quick connector, a connecting flange is arranged at the other end of the connecting head, a limiting frame is fixedly arranged on the outer wall of the connecting flange by welding, the limiting frame is provided with threaded holes, a plurality of groups of threaded holes are arranged in sequence, a threaded rod is detachably installed through the threaded holes, the threaded rod is adapted to the threaded holes, a turning handle is arranged at one end of the threaded rod, and a switch assembly for controlling the water supply switch is arranged on one side of the connecting head.

[0007] As a further solution of the present utility model: The switch assembly includes a support frame, which is fixed on the outer wall of the top of the connection head. A control motor is arranged on the outer wall of the top of the support frame. A valve rod is connected to the bottom of the control motor. One end of the valve rod is rotatably connected inside the connection head. A switching valve is arranged at one end of the valve rod, and the switching valve is adapted to the connection head.

[0008] As a further solution of the present utility model: A connecting shaft is connected to the top of the control motor, and a handwheel is installed at one end of the connecting shaft.

[0009] As a further solution of the present utility model: A protective sleeve is arranged on the outer wall of the handwheel. The protective sleeve is made of rubber material, and anti-slip patterns are evenly arranged on the protective sleeve.

[0010] As a further solution of the present utility model: The connecting flange is provided with an installation groove, and a gasket is installed through the installation groove. The gasket is made of rubber material.

[0011] As a further solution of the present utility model: The outer wall of the quick connector is provided with threads. A sealing cover is arranged on one side of the quick connector, and the sealing cover is adapted to the threads of the quick connector.

[0012] As a further solution of the present utility model: A pull ring is fixedly arranged on one side of the sealing cover by welding.

[0013] As a further solution of the present utility model: Handles are fixedly arranged on the outer wall of the connection head by bolts. There are two groups of handles, which are respectively installed on both sides of the connection head.

[0014] The beneficial effects of the present utility model are as follows:

[0015] There are openings provided on the connecting flange of the fire hydrant or the water supply vehicle. After the connection head is installed and fixed, the threaded rod is inserted through the threaded hole of the limiting frame and rotated to tighten it so that it is stuck into the provided opening for limiting and fixing, which can achieve effective fixation, reinforce the connection part, and avoid the situation that the connection part falls off when quickly dragging the water hose or the water pressure is too high, affecting the normal water supply.

[0016] By providing a gasket made of rubber material, the gaps at the connection part can be filled after the device is installed, avoiding the situation of water leakage through the gaps.

[0017] By providing a sealing cover, the quick connector can be closed when it is not connected to the fire hose, thereby preventing foreign objects from entering the connection head through the quick connector and causing blockage, affecting the normal use. Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of the main view angle of a fire hose connector proposed by the present utility model;

[0019] Figure 2 Structural schematic diagram of a quick - connection part of a fire hose joint proposed by the present utility model;

[0020] Figure 3 Structural schematic diagram of a water - supply part of a fire hose joint proposed by the present utility model;

[0021] Figure 4 Structural schematic diagram of a sealing part of a fire hose joint proposed by the present utility model;

[0022] Figure 5 Structural schematic diagram of another perspective of a fire hose joint proposed by the present utility model.

[0023] In the figure: 1 - connector, 2 - handle, 3 - sealing cover, 4 - quick - connector, 5 - support frame, 6 - control motor, 7 - handwheel, 8 - connecting shaft, 9 - protective sleeve, 10 - valve stem, 11 - threaded rod, 12 - limit frame, 13 - connecting flange, 14 - gasket, 15 - turning handle, 16 - installation groove, 17 - threaded hole, 18 - switch valve, 19 - pull ring. Specific implementation manners

[0024] The technical solutions of the present utility model will be further described in detail below in conjunction with specific implementation manners.

[0025] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model. Embodiment 1

[0026] A fire hose joint, as Figures 1-5 shown, includes a fixing component. The fixing component includes a connector 1. An opening is provided in the center of the connector 1. A quick - connector 4 is installed at one end of the connector 1. The quick - connector 4 is provided with a connecting groove, and a clamping block is provided on one side of the quick - connector 4. A connecting flange 13 is fixedly arranged at the other end of the connector 1 by welding. A limit frame 12 is fixedly arranged on the outer wall of the connecting flange 13 by welding. The limit frame 12 is provided with threaded holes 17, and multiple groups of threaded holes 17 are arranged in sequence. A threaded rod 11 is detachably installed through the threaded holes 17. The threaded rod 11 is adapted to the threaded holes 17. One end of the threaded rod 11 is fixedly arranged with a turning handle 15 by welding. A switch component for controlling the switch of the water supply is provided on one side of the connector 1;

[0027] During use, the quick connector 4 at one end of the connecting head 1 can be quickly connected to the fire hose. The fire hose is also provided with a quick connector 4 at one end. Align the two groups of quick connectors 4, insert the clamping block into the connecting groove and rotate to complete the connection between the fire hose and the connecting head 1. It can be quickly installed and disassembled. Align the connecting flange 13 with the connecting flange of the fire hydrant or water supply vehicle and fix it to complete the connection. After connection, the limiting frame 12 can wrap the connecting flange of the fire hydrant or water supply vehicle. The connecting flange of the fire hydrant or water supply vehicle is provided with an opening according to the position of the threaded hole 17. After wrapping it with the limiting frame 12, the opening provided is aligned with the threaded hole 17. Insert the threaded rod 11 through the threaded hole 17, and control the rotation of the threaded rod 11 by the turning handle 15 to make it snap into the provided opening, thereby completing the fixation of the connection point. It can be limited and fixed after the connecting head 1 is installed to prevent the connection point from falling off when the hose is quickly dragged or the water pressure is too high, affecting the normal water supply;

[0028] The switch assembly includes a support frame 5. The support frame 5 is fixed to the outer wall of the top of the connecting head 1 by bolts. A control motor 6 is fixed to the outer wall of the top of the support frame 5 by bolts. The bottom of the control motor 6 is connected to a valve rod 10. One end of the valve rod 10 is rotatably connected to the inside of the connecting head 1. A switch valve 18 is provided at one end of the valve rod 10. The switch valve 18 is adapted to the connecting head 1;

[0029] During use, the control motor 6 can be used to control the rotation of the valve rod 10, thereby controlling the opening and closing of the switch valve 18. The start and stop of the water supply can be controlled by the opening and closing of the switch valve 18. Control by an electric control method is more convenient and fast;

[0030] To manually control the switch in case of an electrical control failure, as Figure 3 shown, a connecting shaft 8 is connected to the top of the control motor 6, and a handwheel 7 is installed at one end of the connecting shaft 8;

[0031] During use, when the control motor 6 fails and cannot normally control the water supply switch, the handwheel 7 can be held to control the rotation of the connecting shaft 8 to manually control the valve rod 10, thereby performing emergency manual control of the water supply switch;

[0032] To prevent slipping when manually controlling, as Figure 2 shown, an anti-slip sleeve 9 is provided on the outer wall of the handwheel 7. The anti-slip sleeve 9 is made of rubber material, and the anti-slip sleeve 9 is evenly provided with anti-slip lines;

[0033] During use, by holding the anti-slip sleeve 9 with anti-slip lines, the handwheel 7 can be controlled to rotate for manual control, which can increase the friction when contacting the hand, thereby preventing the situation of slipping during control;

[0034] To prevent water leakage during water transmission, as Figure 3 、4 As shown, the connecting flange 13 is provided with an installation groove 16, and a gasket 14 is installed through the installation groove 16. The gasket 14 is made of rubber material;

[0035] When in use, when connecting and fixing through the connecting flange 13, the gasket 14 made of rubber material is used to reinforce the connection part, making the fixation more firm and filling the gap at the connection part at the same time, avoiding water leakage through the gap;

[0036] In order to be closed when not in use, as Figure 1 、 2 shown, the outer wall of the quick connector 4 is provided with threads, and a sealing cover 3 is arranged on one side of the quick connector 4. The sealing cover 3 is adapted to the threads of the quick connector 4;

[0037] When in use, the sealing cover 3 can be installed on the quick connector 4 by rotation, and the quick connector 4 can be closed when it is not connected to the fire hose, thus preventing foreign objects from entering the connector 1 through the quick connector 4 and causing blockage to affect normal use;

[0038] In order to facilitate the installation and removal of the sealing cover 3, as Figure 5 shown, a pull ring 19 is fixedly arranged on one side of the sealing cover 3 by welding;

[0039] When in use, holding the pull ring 19 can conveniently control the rotation of the sealing cover 3, making it more convenient to exert force and avoiding slipping during installation or disassembly, thus making the installation and disassembly more convenient. Embodiment 2

[0040] In order to facilitate the movement and installation of the device, referring to Figure 2 , a fire hose connector. In this embodiment, the following improvements are made compared with Embodiment 1. The outer wall of the connector 1 is fixedly provided with handles 2 through bolts. There are two groups of handles 2, which are respectively installed on both sides of the connector 1;

[0041] When in use, holding the handles 2 facilitates lifting the device for movement, making it more convenient to exert force, and at the same time facilitating holding the handles 2 to adjust the position of the device during installation.

[0042] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent replacements or changes, and should be covered by the protection scope of the present invention.

Claims

1. A fire hose joint, comprising a fixing assembly, characterized in that: The fixing assembly comprises a connector (1), the center of which is provided with an opening, a quick connector (4) is installed at one end of the connector (1), the quick connector (4) is provided with a connecting groove, a clamping block is provided on one side of the quick connector (4), a connecting flange (13) is provided at the other end of the connector (1), a limiting frame (12) is fixedly provided on the outer wall of the connecting flange (13) by welding, the limiting frame (12) is provided with threaded holes (17), a plurality of groups of threaded holes (17) are arranged in sequence, a threaded rod (11) is detachably installed through the threaded holes (17), the threaded rod (11) is adapted to the threaded holes (17), a turning handle (15) is provided at one end of the threaded rod (11), and a switch assembly for controlling a water supply switch is provided on one side of the connector (1).

2. A fire hose joint according to claim 1, characterized in that: The switch assembly comprises a support frame (5), the support frame (5) being fixed to the top outer wall of the connector (1), a control motor (6) being arranged on the top outer wall of the support frame (5), a valve stem (10) being connected to the bottom of the control motor (6), one end of the valve stem (10) being rotatably connected to the connector (1), one end of the valve stem (10) being arranged with a switch valve (18), and the switch valve (18) being adapted to the connector (1).

3. A fire hose joint according to claim 2, characterized in that: The top of the control motor (6) is connected to a connecting shaft (8), and a hand wheel (7) is mounted on one end of the connecting shaft (8).

4. A fire hose joint according to claim 3, characterized in that: The outer wall of the hand wheel (7) is provided with a protective sleeve (9), the protective sleeve (9) is made of rubber material, and the protective sleeve (9) is evenly provided with anti-slip patterns.

5. A fire hose joint according to claim 1, characterized in that: The connecting flange (13) is provided with a mounting groove (16), and a gasket (14) is mounted through the mounting groove (16), wherein the gasket (14) is made of rubber material.

6. A fire hose joint according to claim 1, characterized in that: The outer wall of the quick connector (4) is provided with threads, and a sealing cover (3) is provided on one side of the quick connector (4), wherein the sealing cover (3) is adapted to the threads of the quick connector (4).

7. A fire hose joint according to claim 6, characterized in that: A pull ring (19) is fixedly provided on one side of the sealing cover (3) by welding.

8. A fire hose joint according to claim 1, characterized in that: The outer wall of the connecting head (1) is provided with a handle (2) fixed by bolts, and the handle (2) is provided in two groups, which are respectively installed on both sides of the connecting head (1).

Images