Electric starting impact type water mist nozzle

Abstract

The utility model relates to the technical field of fire-fighting equipment, in particular to an electric starting impact type water mist nozzle which comprises a frame, an atomizing plate, a fastening screw, a water inlet pipe, a sealing element, fusible alloy, an actuating mechanism, a thermosensitive element and a power connection assembly, the actuating mechanism and the thermosensitive element form a triangular supporting structure, and the triangular supporting structure is arranged between the atomizing plate and the water inlet pipe. The sealing element is arranged at the water outlet end of the water inlet pipe through a triangular supporting structure, and the thermosensitive element comprises a first connecting piece, a second connecting piece and a heating piece. A first welding hole is formed in the first connecting sheet; a second welding hole is formed in the second connecting sheet; the second connecting piece is arranged between the first connecting piece and the heating piece, and the first welding hole corresponds to the second welding hole in position; the fusible alloy is filled in the first welding hole and the second welding hole and is fixedly connected with the lower end of the heating sheet; and the heating sheet is fixedly connected with the power connection assembly through the fusible alloy. The production efficiency and the yield of the water mist spray head can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fire fighting equipment, and specifically relates to an electrically started impact type water mist sprinkler. Background Art

[0002] Fire water mist nozzle is a kind of nozzle that controls the fire at the fire scene by spraying. Its working principle is to use high-pressure pump or gas to push water flow, spray water mist from the nozzle, and push the water mist to the area where the fire needs to be extinguished through compressed air or gas. The water mist forms an atomized area through the nozzle, effectively controlling the fire, reducing the temperature, and blocking the spread of smoke and harmful gases.

[0003] In the prior art, for example, the applicant's patent discloses a temperature-sensing starting device and a nozzle including the device, with announcement number CN211068866U, which realizes the intelligence of the nozzle by adding an electrically controlled hot-melt assembly between the nozzle and the atomizing plate. The lower heat absorbing plate and the upper heat absorbing plate of the hot-melt assembly of the nozzle are connected and fixed by the first fusible alloy layer therebetween, and the connecting part is also connected to the power connection column provided on the nozzle support part through the second fusible alloy layer. In the actual production process of the nozzle, the applicant found that due to the large filling area of ​​the first fusible alloy layer and the second fusible alloy layer, and the filling uniformity is difficult to control, the production efficiency and yield rate of the hot-melt assembly are ultimately not ideal. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide an electrically started impact water mist nozzle, which can improve the production efficiency and yield rate of the water mist nozzle.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an electrically started impact water mist nozzle, comprising a frame, an atomizing plate, a fastening screw, a water inlet pipe, a sealing element, a fusible alloy, an actuating mechanism, a thermistor and an electrical connection assembly, wherein the atomizing plate, the fastening screw, the water inlet pipe and the electrical connection assembly are all arranged on the frame, the actuating mechanism and the thermistor form a triangular support structure, the triangular support structure is arranged between the atomizing plate and the water inlet pipe, and the sealing element is arranged at the water outlet end of the water inlet pipe through the triangular support structure, the thermistor comprises a first connecting plate, a second connecting plate and a heating plate; a first welding hole is provided on the first connecting plate; a second welding hole is provided on the second connecting plate; the second connecting plate is arranged between the first connecting plate and the heating plate, wherein the first welding hole corresponds to the second welding hole; the fusible alloy is filled in the first welding hole and the second welding hole and the fusible alloy is fixedly connected to the lower end of the heating plate; the heating plate is fixedly connected to the electrical connection assembly through the fusible alloy.

[0006] Preferably, a plurality of the first welding holes and the second welding holes are provided, and the first welding holes and the second welding holes correspond to each other one by one.

[0007] Preferably, the diameter of the first welding hole is the same as the diameter of the second welding hole.

[0008] Preferably, the first welding hole is coaxial with the second welding hole.

[0009] Preferably, the heating plate comprises a heating plate body and two conductive plates, the heating plate body is fixedly connected to the second connecting plate; the two conductive plates are respectively disposed at the left and right ends of the heating plate body; the power connection components are provided in two groups, and the two groups of power connection components correspond one-to-one to the two conductive plates; the conductive plates and the power connection components are fixedly connected by a fusible alloy.

[0010] Preferably, through holes are provided on both of the two conductive sheets.

[0011] Preferably, the second connecting piece includes a second connecting piece body and a connecting ear; the connecting ear is arranged at the upper end of the second connecting piece body; the heating piece body is crimped to the second connecting piece body through the connecting ear.

[0012] Preferably, the heating plate body is in surface contact with the second connecting plate body.

[0013] Preferably, the power connection assembly comprises a power connection plate and a power connection screw; the power connection plate is fixed to the frame by the power connection screw; and the conductive plate is fixed to the power connection plate at the corresponding position by a fusible alloy.

[0014] Preferably, the action mechanism includes a first support rod and a second support rod; the thermistor is mounted on the upper ends of the first support rod and the second support rod; a limiting protrusion is provided on the upper portion of the second support rod; and the thermistor is crimped with the limiting protrusion.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows: by opening welding holes in both the first connecting piece and the second connecting piece, when producing the water mist nozzle, especially for the assembly of the thermal sensitive element, when the first connecting piece and the second connecting piece are connected by the fusible alloy, the filling uniformity of the fusible alloy can be better controlled, and the filling efficiency is greatly improved, which ultimately improves the production efficiency and yield rate of the nozzle; in addition, since there is no need to fill the fusible alloy over a large area, the production cost of the nozzle is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the front side of the water mist nozzle;

[0017] Figure 2 This is a schematic diagram of the structure of the rear side of the water mist nozzle;

[0018] Figure 3 This is a schematic diagram of the structure of the upper side of the thermal element of the water mist nozzle;

[0019] Figure 4 for Figure 3 Schematic diagram of the structure of the hot melt assembly after removing the heating plate;

[0020] Figure 5 This is a schematic diagram of the structure of the lower side of the thermal element of the water mist nozzle;

[0021] Figure 6 This is a cross-sectional schematic diagram of the first connecting piece of the water mist nozzle being connected to the second connecting piece via a fusible alloy.

[0022] In the figure: 1 frame, 2 atomizing plate, 3 fastening screws, 4 water inlet pipe, 5 sealing element, 6 first support rod, 7 second support rod, 8 first connecting plate, 9 second connecting plate, 10 heating plate, 11 power connecting plate, 12 power connecting screws, 13 fusible alloy, 701 limiting protrusion, 801 first welding hole, 802 first positioning hole, 901 second welding hole, 902 second positioning hole, 903 connecting ear, 101 conductive plate. DETAILED DESCRIPTION

[0023] The following describes the specific implementation of the utility model in detail in conjunction with the accompanying drawings so that those skilled in the art can more clearly understand how to practice the utility model. Although the utility model is described in conjunction with its preferred specific embodiments, these embodiments are only illustrative, rather than limiting the scope of the utility model.

[0024] Specific embodiment 1: Please refer to Figure 1-6 An electrically started impact water mist nozzle comprises: a frame 1, an atomizing plate 2, a fastening screw 3, a water inlet pipe 4, a sealing element 5, a fusible alloy 13, an actuating mechanism, a thermistor and an electrical connection assembly, wherein the water inlet pipe 4 is arranged at the top of the frame 1, the electrical connection assembly is arranged on the frame 1 and at the lower end of the water inlet pipe 4, the atomizing plate 2 is arranged at the lower end of the frame 1 and at the lower side of the water inlet pipe 4 through the fastening screw 3, and it can also be understood that the water inlet pipe 4 is coaxial with the atomizing plate 2 and the fastening screw 3, and when in use, the water inlet pipe 4 is connected to the municipal water pipe, and water can be sprayed toward the atomizing plate 2 and the fastening screw 3 after entering from the water inlet pipe 4; further, the actuating mechanism and the thermistor form a stable triangular support structure, the sealing element 5 is arranged at the lower end of the water inlet pipe 4 through the triangular support structure to close the water inlet pipe 4, and at the same time the thermistor and the electrical connection assembly are connected through the fusible alloy.

[0025] The action mechanism includes a first support rod 6 and a second support rod 7. The lower end of the first support rod 6 is crimped with the fastening screw 3, and the lower end of the second support rod 7 is crimped with the lower end of the first support rod 6. At the same time, the contact point between the first support rod 6 and the fastening screw 3 is not colinear with the contact point between the first support rod 6 and the second support rod 7; the upper end of the second support rod 7 is crimped with the sealing element 5; the upper end of the first support rod 6 and the upper end of the second support rod 7 are connected by a thermistor to maintain the stability of the triangular support structure; in addition, in order to ensure the stability after assembly, a limiting protrusion 701 is also provided on the upper part of the second support rod 7, so that the upper part of the second support rod 7 is in a Y-shaped structure; the thermistor is crimped with the limiting protrusion 701.

[0026] The thermistor comprises a first connecting piece 8, a second connecting piece 9 and a heating piece 10, which are arranged in sequence from bottom to top; a first welding hole 801 and a first positioning hole 802 are provided on the first connecting piece 8, and after installation, the upper end of the first support rod 6 is arranged through the first positioning hole 802; a second welding hole 901 and a second positioning hole 902 are provided on the second connecting piece 9, and after installation, the upper end of the second support rod 7 is passed through the second positioning hole 902 and the second connecting piece 9 is crimped with the limiting protrusion 701, and in addition, the first welding hole 801 and the second welding hole 901 are coaxially arranged, that is, the first welding hole 801 and the second welding hole 901 overlap each other; further, during implementation, the first welding hole 801 and the second welding hole 901 are each provided with two, and the first welding hole 801 and the second welding hole 901 are arranged one by one; it should be noted that the aperture of the first welding hole 801 is the same as the aperture of the second welding hole 901;

[0027] In addition, the second connecting piece 9 further includes two connecting ears 903, and the two connecting ears 903 protrude from the upper end of the second connecting piece 9 body; the heating piece 10 includes a heating piece body and two conductive sheets 101, and the two conductive sheets 101 are symmetrically arranged at the left and right ends of the heating piece body, and the heating piece body is fixed to the upper end of the second connecting piece 9 body through the two connecting ears 903. Specifically, the heating piece body is crimped with the second connecting piece body through the connecting ears, and at the same time, the heating piece body and the second connecting piece 9 body are in surface contact, so that the first welding hole 801 is closed on the upper side of the second welding hole 901; square through holes are longitudinally opened on the two conductive sheets 101;

[0028] See also Figure 6During assembly, the heating plate 10 is first fixed on the second connecting plate 9, and then the first connecting plate 8 is attached to the lower end of the second connecting plate 9 and the first welding hole 801 is aligned with the second welding hole 901. Finally, the fusible alloy 13 is heated and melted, and then filled into the first welding hole 801 and the second welding hole 901. After cooling, the fusible alloy 13 at the first welding hole 801 and the second welding hole 901 is in a rivet shape. The fusible alloy 13 can not only be connected to the heating plate 10, but also the fusible alloy 13 can fix the first connecting plate 8 and the second connecting plate 9 to each other. In this way, compared with the existing nozzles of the applicant, it is no longer necessary to fill the fusible alloy 13 in a large area between the connecting plates. Moreover, since the fusible alloy 13 is filled into the hole after melting, during implementation, from the perspective of processing technology, in the pores at a specific position, not only the filling uniformity is better controlled, but also the filling efficiency is greatly improved, and finally the production efficiency and yield rate of the nozzle are improved.

[0029] In other embodiments, the number and shape of the first welding holes 801 and the second welding holes 901 can be adjusted according to actual needs. For example, in order to increase the stability of the structure, the number of the first welding holes 801 and the second welding holes 901 can be increased, and the apertures of the first welding holes 801 and the second welding holes 901 can be enlarged.

[0030] Furthermore, in order to further improve production efficiency, through holes are longitudinally opened on the two conductive sheets 101. The function of the through holes is the same as that of the first welding hole 801 and the second welding hole 901, which is also to improve filling uniformity and filling efficiency, which will not be repeated here.

[0031] The power connection assembly includes a power connection plate 11 and a power connection screw 12. The power connection plate 11 is fixed to the frame 1 by the power connection screw 12. In the present embodiment, the power connection assembly is provided with two groups, and the two groups of power connection assemblies are respectively arranged on both sides of the heating plate 10. The power connection plates 11 at corresponding positions are connected to the conductive plate 101 by a fusible alloy 13. When in use, the power connection assembly is connected to the circuit of the external fire detection control unit.

[0032] The working principle of this water mist nozzle: When a fire occurs, the fire detection control unit detects signals such as temperature and smoke, and automatically transmits 24V DC to the power connection component. The heating plate on the thermistor melts the fusible alloy, the action mechanism and the sealing element are separated, and the water flow is sprayed onto the impact atomization plate, atomized into droplets for cooling and fire extinguishing.

[0033] Through the technical solution, by opening welding holes in the first connecting piece and the second connecting piece, when the water mist nozzle is produced, especially for the assembly of the thermal sensitive element, when the first connecting piece and the second connecting piece are connected by the fusible alloy, the filling uniformity of the fusible alloy can be better controlled, and the filling efficiency is greatly improved, which ultimately improves the production efficiency and yield rate of the nozzle; in addition, since there is no need to fill the fusible alloy over a large area, the production cost of the nozzle is reduced.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electrically activated impact water mist nozzle, comprising a frame (1), an atomizing plate (2), a fastening screw (3), a water inlet pipe (4), a sealing element (5), a fusible alloy (13), an actuating mechanism, a thermal element and an electrical connection assembly, wherein the atomizing plate (2), the fastening screw (3), the water inlet pipe (4) and the electrical connection assembly are all arranged on the frame (1), the actuating mechanism and the thermal element form a triangular support structure, the triangular support structure is arranged between the atomizing plate (2) and the water inlet pipe (4), and the sealing element (5) is arranged at the water outlet end of the water inlet pipe (4) through the triangular support structure, characterized in that: The thermal element comprises a first connecting piece (8), a second connecting piece (9) and a heating piece (10); the first connecting piece (8) is provided with a first welding hole (801); the second connecting piece (9) is provided with a second welding hole (901); the second connecting piece (9) is arranged between the first connecting piece (8) and the heating piece (10), wherein the first welding hole (801) and the second welding hole (901) correspond in position; the fusible alloy (13) is filled in the first welding hole (801) and the second welding hole (901), and the fusible alloy (13) is fixedly connected to the lower end of the heating piece (10); and the heating piece (10) is fixedly connected to the electrical connection component via the fusible alloy (13).

2. The electrically activated impact water mist nozzle according to claim 1, characterized in that: A plurality of the first welding holes (801) and the second welding holes (901) are provided, and the first welding holes (801) and the second welding holes (901) correspond one to one.

3. The electrically activated impact water mist nozzle according to claim 1, characterized in that: The hole diameter of the first welding hole (801) is the same as the hole diameter of the second welding hole (901).

4. The electrically activated impact water mist nozzle according to claim 1, characterized in that: The first welding hole (801) and the second welding hole (901) are coaxial.

5. The electrically activated impact water mist nozzle according to claim 1, characterized in that: The heating plate (10) comprises a heating plate body and two conductive plates, the heating plate body being fixedly connected to the second connecting plate (9); the two conductive plates being respectively arranged at the left and right ends of the heating plate body; the power connection components being provided in two groups, and the two groups of power connection components corresponding to the two conductive plates one by one; the conductive plates and the power connection components being fixedly connected via a fusible alloy (13).

6. The electrically activated impact water mist nozzle according to claim 5, characterized in that: Through holes are provided on the two conductive sheets.

7. The electrically activated impact water mist nozzle according to claim 5, characterized in that: The second connecting piece (9) comprises a second connecting piece body and a connecting ear; the connecting ear is arranged at the upper end of the second connecting piece body; the heating piece body is crimped to the second connecting piece body via the connecting ear.

8. The electrically activated impact water mist nozzle according to claim 7, characterized in that: The heating plate body is in surface contact with the second connecting plate body.

9. The electrically activated impact water mist nozzle according to claim 5, characterized in that: The power connection assembly comprises a power connection plate (11) and a power connection screw (12); the power connection plate (11) is fixed to the frame (1) via the power connection screw (12); and the conductive plate is fixedly connected to the power connection plate (11) at a corresponding position via a fusible alloy (13).

10. The electrically activated impact water mist nozzle according to claim 1, characterized in that: The action mechanism comprises a first support rod (6) and a second support rod (7); the thermosensitive element is mounted on the upper ends of the first support rod (6) and the second support rod (7); a limiting protrusion is provided on the upper part of the second support rod (7); and the thermosensitive element is crimped to the limiting protrusion.

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