Nozzle assembly and fire water monitor

Abstract

The utility model discloses a nozzle assembly and a fire water monitor and belongs to the technical field of fire-fighting instruments, an inner pipe is used for being connected with a spray pipe of the fire water monitor, a through hole of an outer pipe is located in front of a spray hole of the inner pipe, and a driving device drives a first shell and a second shell to be folded to enable a flow guide plate to move to the front of the through hole. Water columns sprayed out of the spraying holes impact the flow guide plate so that the water columns can be dispersed and form water mist, and columnar spraying is switched into vaporific spraying. The first shell and the second shell are driven by the driving device to be opened, so that the flow guide plate is kept away from the position right opposite to the through hole, a water column sprayed out of the spraying hole is directly sprayed out, and mist spraying is switched into columnar spraying; the fire water monitor can be quickly switched between columnar spraying and vaporific spraying, so that the spraying state of the fire water monitor is more convenient to switch, and the operation is easy.

Description

Technical Field

[0001] The utility model relates to the technical field of fire-fighting equipment, in particular to a nozzle assembly and a fire-fighting water monitor. Background Art

[0002] Fire monitors are firefighting devices that convert pressurized water into energy, ejecting it from the monitor's nozzle at high speeds, creating a water jet that can extinguish fires at a distance. Fire monitors primarily have two spray modes: columnar and mist. Columnar spray can be used for remote, targeted firefighting, while mist spray can be used to isolate a fire and prevent its further spread. The appropriate spray mode is determined by the fire scene. However, existing fire monitors are fixed in either columnar or mist mode, requiring nozzle replacement to switch between the two modes, making switching between the two modes inconvenient. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a nozzle assembly that can quickly switch between columnar spray and mist spray, making the spray state switching of the fire water monitor more convenient and easy to operate.

[0004] The nozzle assembly according to the first embodiment of the present invention includes:

[0005] an inner tube, wherein the inner tube is provided with a spray hole;

[0006] an outer tube connected to the inner tube, the outer tube being provided with a through hole, with the position of the through hole relative to the nozzle being the front direction;

[0007] a first shell, hinged to the outer tube;

[0008] a second shell, hinged to the outer tube, with the position of the second shell relative to the first shell being the downward direction;

[0009] a deflector, provided at the bottom of the first shell or the top of the second shell;

[0010] a driving device connecting the first shell and the second shell;

[0011] The driving device drives the first shell and the second shell to close together so that the guide plate moves to the front of the through hole;

[0012] The driving device drives the first shell and the second shell to open so that the guide plate avoids a position directly facing the through hole.

[0013] The nozzle assembly according to the embodiment of the present invention has at least the following beneficial effects: the inner tube is used to connect the nozzle of the fire water monitor, the through hole of the outer tube is located in front of the spray hole of the inner tube, and the first shell and the second shell are driven to close by the driving device to move the guide plate to the front of the through hole. The water column sprayed from the spray hole hits the guide plate to disperse the water column and form water mist, so that the columnar spray is switched to mist spray; the first shell and the second shell are driven to open by the driving device to make the guide plate avoid the position directly opposite the through hole, so that the water column sprayed from the spray hole is directly sprayed out, so that the mist spray is switched to columnar spray; it can quickly switch between columnar spray and mist spray, making the spray state switching of the fire water monitor more convenient and easy to operate.

[0014] According to some embodiments of the present invention, the nozzle assembly further includes:

[0015] The spoiler is arranged at the bottom of the first shell or the top of the second shell. The spoiler is arranged above or below the axis of the through hole. When the first shell and the second shell are closed, the spoiler moves to the front of the spray hole.

[0016] According to some embodiments of the present invention, there are multiple guide plates, and the multiple guide plates are respectively arranged at the bottom of the first shell and the top of the second shell, and the multiple guide plates are located on the left and right sides of the spoiler.

[0017] According to some embodiments of the present invention, the guide plate gradually extends from the rear to the front in a direction away from the spoiler.

[0018] According to some embodiments of the present invention, the spoiler gradually protrudes from the back to the front toward the axis of the spray hole, and the protruding distance of the spoiler decreases from the middle to the left and right sides.

[0019] According to some embodiments of the present invention, there are at least two spoilers, which are respectively located at the bottom of the first shell and the top of the second shell. The bottom wall of the first shell gradually tilts downward from back to front, and the top wall of the second shell gradually tilts upward from back to front.

[0020] According to some embodiments of the present invention, an air inlet hole is provided at the rear end of the outer tube, the outer tube is sleeved on the outside of the inner tube, and an air inlet channel is left between the inner wall of the outer tube and the outer wall of the inner tube.

[0021] According to some embodiments of the present invention, the diameter of the spray hole gradually decreases from back to front.

[0022] According to some embodiments of the present invention, the driving device includes:

[0023] a transmission mechanism connecting the first shell and the second shell, linking the first shell and the second shell so as to close or open the first shell and the second shell;

[0024] The driving mechanism is connected to the first shell or the second shell, and drives the first shell to rotate or drives the second shell to rotate.

[0025] The fire-fighting water monitor according to the second embodiment of the present invention includes the nozzle assembly as described above.

[0026] The fire-fighting water monitor according to the embodiment of the present invention has at least the following beneficial effects: the nozzle of the fire-fighting water monitor is connected to the inner tube, the through hole of the outer tube is located in front of the spray hole of the inner tube, the first shell and the second shell are driven to close by the driving device to move the guide plate to the front of the through hole, the water column sprayed from the spray hole hits the guide plate so that the water column is dispersed and forms water mist, and the columnar spray is switched to the mist spray; the first shell and the second shell are driven to open by the driving device so that the guide plate avoids the position directly opposite the through hole, so that the water column sprayed from the spray hole is directly sprayed out, and the mist spray is switched to the columnar spray; it can quickly switch between columnar spray and mist spray, making the spray state switching of the fire-fighting water monitor more convenient and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic structural diagram of a nozzle assembly according to an embodiment of the present invention;

[0028] Figure 2 It is a cross-sectional schematic diagram of a nozzle assembly according to an embodiment of the present invention;

[0029] Figure 3 This is a schematic structural diagram of an embodiment of the present invention in which the first shell and the second shell are closed;

[0030] Figure 4 This is a cross-sectional schematic diagram of the first shell and the second shell being closed together in one embodiment of the present utility model;

[0031] Figure 5 It is a structural schematic diagram of a fire water monitor according to an embodiment of the present invention.

[0032] Reference numerals: nozzle 10 , inner tube 100 , nozzle hole 110 , outer tube 200 , through hole 210 , air inlet hole 220 , air inlet channel 230 , first shell 300 , second shell 400 , guide plate 500 , drive device 600 , transmission mechanism 610 , drive mechanism 620 , spoiler 700 . DETAILED DESCRIPTION

[0033] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0034] In the description of the present invention, it should be understood that the terms front, rear, up, down, axial, circumferential, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0035] In the description of this utility model, "above," "below," and "within" are understood to be exclusive of the number indicated, while "above," "below," and "within" are understood to be inclusive of the number indicated. The use of "first" and "second" is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, or implicitly specifying the number or order of the technical features indicated.

[0036] In the description of the present invention, it should be noted that terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0037] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described below are only some embodiments of the present invention, not all embodiments.

[0038] Reference Figures 1 to 4 The nozzle assembly according to the embodiment of the first aspect of the present utility model is described. The nozzle assembly is used for a fire water monitor. The nozzle assembly is described below using a specific example.

[0039] Reference Figures 1 to 4 As shown, the nozzle assembly includes an inner tube 100 , an outer tube 200 , a first shell 300 , a second shell 400 , a guide plate 500 , and a driving device 600 .

[0040] The inner tube 100 is used to connect to the nozzle 10 of the fire monitor, and a spray hole 110 is provided at the front end of the inner tube 100 .

[0041] The outer tube 200 is connected to the inner tube 100 , and a through hole 210 is provided at the front end of the outer tube 200 . The through hole 210 is located in front of the spray hole 110 , so that the nozzle 10 of the fire water monitor can spray water from the spray hole 110 through the through hole 210 .

[0042] The first shell 300 is hinged to the top of the outer tube 200 and rotates around an axis extending in the left-right direction. The second shell 400 is hinged to the bottom of the outer tube 200 and rotates around an axis extending in the left-right direction.

[0043] The drive mechanism 600 connects the first housing 300 and the second housing 400. The drive mechanism 600 can drive the first housing 300 and the second housing 400 to rotate and close or open the first housing 300 and the second housing 400. The first housing 300 and the second housing 400 close in front of the through hole 210. When the first housing 300 and the second housing 400 open, they avoid the front of the through hole 210.

[0044] There are many types of drive devices 600. For example, the first housing 300 is connected to a driving gear, and the second housing 400 is connected to a driven gear. The driving gear and the driven gear mesh together to make the first housing 300 and the second housing 400 move in a coordinated manner. Then, a cylinder pulls the first housing 300 or the second housing 400 to rotate, thereby opening or closing the first housing 300 and the second housing 400.

[0045] Alternatively, two cylinders are provided to connect the first shell 300 and the second shell 400 respectively. The two cylinders extend simultaneously to close the second shell 400 and the first shell 300, and retract simultaneously to open the second shell 400 and the first shell 300.

[0046] Alternatively, two rotating motors are provided and connected to the first shell 300 and the second shell 400 respectively, and the two rotating motors are used to respectively drive the second shell 400 and the first shell 300 to rotate, thereby realizing the opening or closing of the second shell 400 and the first shell 300.

[0047] The deflector 500 is located on the top of the first housing 300 or the top of the second housing 400. When the first housing 300 and the second housing 400 are closed, the deflector 500 moves in front of the through-hole 210, allowing the water jets ejected from the through-hole 210 to strike the deflector 500 and form a mist. When the first housing 300 and the second housing 400 are opened, the deflector 500 moves away from the front of the through-hole 210, allowing the water jets to be ejected from the through-hole 210.

[0048] The inner tube 100 is used to connect the nozzle 10 of the fire water monitor. The through hole 210 of the outer tube 200 is located in front of the spray hole 110 of the inner tube 100. The driving device 600 drives the first shell 300 and the second shell 400 to close together, driving the guide plate 500 to move in front of the through hole 210. The water column sprayed from the spray hole 110 hits the guide plate 500, causing the water column to be dispersed and form water mist, so that the columnar spray is switched to mist spray.

[0049] The driving device 600 drives the first shell 300 and the second shell 400 to open so that the guide plate 500 avoids the position facing the through hole 210, so that the water column sprayed from the spray hole 110 is sprayed directly, and the mist spray is switched to columnar spray.

[0050] It can quickly switch between columnar spray and mist spray, making the spray state switching of the fire water monitor more convenient and easy to operate.

[0051] In some embodiments, reference Figures 1 to 4 As shown, the nozzle assembly also includes a spoiler block 700, which is arranged at the bottom of the first shell 300 or the top of the second shell 400. The spoiler block 700 is arranged above or below the axis of the through hole 210. When the first shell 300 and the second shell 400 are closed, the spoiler block 700 moves to the front of the nozzle 110.

[0052] When the first shell 300 and the second shell 400 are closed, the spoiler block 700 moves in front of the nozzle 110, so that the water column sprayed from the nozzle 110 directly impacts the spoiler block 700 and splashes onto the guide plate 500, so that the water column sprayed from the nozzle 110 splashes between the spoiler block 700 and the guide plate 500 to form more water mist, producing a better mist spray effect.

[0053] In some embodiments, reference Figures 1 to 4 As shown, there are four guide plates 500, two of which are arranged at the bottom of the first shell 300, and the other two guide plates 500 are arranged at the top of the second shell 400. When the first shell 300 and the second shell 400 are closed, all the guide plates 500 are located on the left and right sides of the spoiler 700.

[0054] A plurality of guide plates 500 are arranged at the bottom of the first shell 300 and the top of the second shell 400. When the water column sprayed from the nozzle 110 hits the spoiler block 700, the multiple guide plates 500 on both sides form a barrier to the water column splashed by the spoiler block 700, which helps to form a continuously splashing water column in the space between the guide plate 500 and the spoiler block 700, thereby generating more water mist and forming a better atomization effect.

[0055] In some embodiments, the guide plate 500 extends from rear to front, and the guide plate 500 gradually moves away from the spoiler 700 from rear to front.

[0056] When the first shell 300 and the second shell 400 are closed, the multiple guide plates 500 form a conical hole structure with a smaller rear portion and a larger front portion, which helps the formed water mist to spread outward and improve the mist spraying effect.

[0057] In some embodiments, the spoiler 700 protrudes toward the axis of the spray hole 110 , and the protruding distance gradually increases from the back to the front, and the protruding distance of the spoiler 700 gradually decreases from the middle to the left and right sides.

[0058] When the first shell 300 and the second shell 400 are closed, the water column sprayed from the spray hole 110 is divided into two water columns by the gradually inclined spoiler block 700 and impacts the guide plates 500 on both sides, which helps to reduce the obstruction of the water column by the spoiler block 700 and helps to increase the spray distance of the sprayed water mist.

[0059] In some embodiments, there are two spoiler blocks 700, which are respectively arranged at the bottom of the first shell 300 and the top of the second shell 400, and the two guide plates 500 are located on the left and right sides of the spoiler blocks 700, and the bottom wall of the first shell 300 gradually tilts downward from back to front, and the top wall of the second shell 400 gradually tilts upward from back to front.

[0060] When the first shell 300 and the second shell 400 are closed, the bottom wall of the first shell 300 and the top wall of the second shell 400 form a channel that gradually decreases from back to front, which helps to further compress the channel enclosed between the spoiler 700 and the guide plate 500, and further enhance the water mist formation effect.

[0061] In some embodiments, an air inlet hole 220 is set at the rear end and outer side wall of the outer tube 200, and the outer tube 200 is sleeved on the outside of the inner tube 100, and an air inlet channel 230 is formed between the inner side wall of the outer tube 200 and the outer side wall of the inner tube 100.

[0062] When the first shell 300 and the second shell 400 are closed, a water column is sprayed out from the through hole 210 of the outer tube 200 to form water mist in the first shell 300 and the second shell 400. Since the sprayed water column forms a low pressure in front of the through hole 210, the external air flows from the air inlet hole 220 of the outer tube 200 through the air inlet channel 230 to the front of the through hole 210, which helps to mix the air and the water mist and produce an atomization effect with better diffusion effect.

[0063] In some embodiments, the diameter of the nozzle hole 110 gradually decreases from the back to the front.

[0064] The nozzle holes 110 with gradually decreasing apertures form a converging effect on the water column, so that the water column flow rate increases and impacts the guide plate 500, thereby improving the atomization effect and also increasing the distance of the mist spray and column spray.

[0065] In some embodiments, the driving device 600 includes a transmission mechanism 610 and a driving mechanism 620 .

[0066] The transmission mechanism 610 includes a first gear and a second gear. The first gear is connected to the first shell 300, and the rotating shaft of the first gear coincides with the rotating shaft of the first shell 300. The second gear is connected to the second shell 400, and the rotating shaft of the second gear coincides with the rotating shaft of the second shell 400. The first gear and the second gear are engaged to link the first shell 300 and the second shell 400.

[0067] The driving mechanism 620 is an electric push rod. The fixed end of the driving mechanism 620 is hinged to the outer wall of the outer tube 200, and the movable end of the driving mechanism 620 is hinged to the outer wall of the first shell 300. The first shell 300 is driven to rotate by the telescopic action of the driving mechanism 620. After the first shell 300 rotates, it drives the second shell 400 through the transmission mechanism 610.

[0068] Reference Figure 5 The fire-fighting water monitor according to the second embodiment of the present invention is described, which includes the nozzle assembly as described above, and the fire-fighting water monitor is further provided with a nozzle 10.

[0069] The nozzle 10 of the fire water monitor is connected to the inner tube 100, and the through hole 210 of the outer tube 200 is located in front of the spray hole 110 of the inner tube 100. The driving device 600 drives the first shell 300 and the second shell 400 to close together, driving the guide plate 500 to move in front of the through hole 210. The water column sprayed from the spray hole 110 hits the guide plate 500, so that the water column is dispersed and forms water mist, so that the columnar spray is switched to mist spray.

[0070] The driving device 600 drives the first shell 300 and the second shell 400 to open so that the guide plate 500 avoids the position facing the through hole 210, so that the water column sprayed from the spray hole 110 is sprayed directly, and the mist spray is switched to columnar spray.

[0071] It can quickly switch between columnar spray and mist spray, making the spray state switching of the fire water monitor more convenient and easy to operate.

[0072] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A nozzle assembly, characterized in that: include: an inner tube provided with a spray hole; an outer tube connected to the inner tube, the outer tube being provided with a through hole, with the position of the through hole relative to the nozzle being the front direction; a first shell, hinged to the outer tube; a second shell, hinged to the outer tube, with the position of the second shell relative to the first shell being the downward direction; a deflector, provided at the bottom of the first shell or the top of the second shell; a driving device connecting the first shell and the second shell; The driving device drives the first shell and the second shell to close together so that the guide plate moves to the front of the through hole; The driving device drives the first shell and the second shell to open so that the guide plate avoids a position directly facing the through hole.

2. The nozzle assembly according to claim 1, wherein The nozzle assembly further comprises: The spoiler is arranged at the bottom of the first shell or the top of the second shell. The spoiler is arranged above or below the axis of the through hole. When the first shell and the second shell are closed, the spoiler moves to the front of the spray hole.

3. The nozzle assembly according to claim 2, wherein: There are multiple guide plates, and the multiple guide plates are respectively arranged at the bottom of the first shell and the top of the second shell, and the multiple guide plates are located on the left and right sides of the spoiler.

4. The nozzle assembly according to claim 3, wherein: The guide plate gradually extends from the rear to the front in a direction away from the spoiler.

5. The nozzle assembly according to claim 3, wherein: The spoiler gradually protrudes from the back to the front toward the axis of the spray hole, and the protruding distance of the spoiler decreases from the middle to the left and right sides.

6. The nozzle assembly according to claim 2, wherein: There are at least two spoilers, which are respectively located at the bottom of the first shell and the top of the second shell. The bottom wall of the first shell gradually slopes downward from the back to the front, and the top wall of the second shell gradually slopes upward from the back to the front.

7. The nozzle assembly according to claim 1, wherein: An air inlet hole is provided at the rear end of the outer tube. The outer tube is sleeved on the outside of the inner tube, and an air inlet passage is left between the inner wall of the outer tube and the outer wall of the inner tube.

8. The nozzle assembly according to claim 1, wherein: The aperture of the spray hole gradually decreases from the back to the front.

9. The nozzle assembly according to claim 1, wherein: The driving device comprises: a transmission mechanism connecting the first shell and the second shell, linking the first shell and the second shell so as to close or open the first shell and the second shell; The driving mechanism is connected to the first shell or the second shell, and drives the first shell to rotate or drives the second shell to rotate.

10. A fire water monitor, characterized in that: Comprising the nozzle assembly according to any one of claims 1 to 9.

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