High-pressure water mist nozzle

Abstract

The utility model belongs to the technical field of fire fighting equipment, and particularly relates to a high-pressure water mist spray head which comprises a spray head body, a plurality of nozzles are arranged on the periphery of the outer wall of the spray head body, an attaching cover is rotatably installed on the outer wall of the spray head body, and an inner pipe is fixed to the top of the spray head body in a penetrating mode. A connecting pipe is fixed to the position, corresponding to the inner pipe, of the top of the spray head body, the inner pipe is located in the connecting pipe, a piston sleeve is installed between the inner pipe and the connecting pipe in a sealed and sliding mode, a plurality of springs fixed to the top of the spray head body are fixed to the outer wall of the piston sleeve, and a plurality of sliding grooves are formed in one side of the connecting pipe in a penetrating mode; an L-shaped mounting rod which is in sliding connection with the sliding groove is fixed on the outer wall of the piston sleeve; according to the high-pressure water mist nozzle, the nozzle can be protected through the attaching cover, the nozzle is effectively shielded, dust and other impurities are prevented from being accumulated at the nozzle, then the nozzle is prevented from being blocked, and the high-pressure water mist nozzle can be normally used subsequently.

Description

Technical Field

[0001] The utility model belongs to the technical field of fire-fighting equipment, and particularly relates to a high-pressure fine water mist nozzle. Background Art

[0002] Among existing fire extinguishing equipment, high-pressure fine water mist nozzles are often used. The fine droplets formed by pressurized water flowing through special high-pressure fine water mist nozzles are used for fire extinguishing. The average diameter of fine water mist droplets is less than 100μm, with high specific surface area and distribution density. When encountering high temperature of flame, they vaporize rapidly and their volume can expand more than 1700 times, which greatly reduces the oxygen concentration in the protected area. They have a strong vaporization cooling effect and oxygen isolation and asphyxiation effect, and are widely used for fire extinguishing in flammable and explosive places such as archives, turbine rooms, and computer rooms.

[0003] The high-pressure fine water mist nozzles currently in use lack effective protection for the nozzles when idle, which causes the nozzles to be exposed to the outside for a long time, easily accumulating dust, which in turn causes blockage problems and has an adverse effect on the subsequent smooth operation of the high-pressure fine water mist nozzles. Utility Model Content

[0004] The purpose of this utility model is to provide a high-pressure fine water mist nozzle, which can protect the nozzle through a fitting cover, effectively shield the nozzle, prevent dust and other impurities from accumulating at the nozzle, and thus prevent the nozzle from being blocked, so as to enable the subsequent normal use of the high-pressure fine water mist nozzle.

[0005] The technical solutions adopted in this application are as follows:

[0006] A high-pressure fine water mist nozzle comprises a nozzle body, wherein a plurality of nozzles are arranged around the outer wall of the nozzle body, a fitting cover is rotatably mounted on the outer wall of the nozzle body, an inner tube is fixed through the top of the nozzle body, a connecting tube is fixed on the top of the nozzle body corresponding to the inner tube, and the inner tube is located in the connecting tube, a piston sleeve is sealingly and slidingly mounted between the inner tube and the connecting tube, a plurality of springs fixed to the top of the nozzle body are fixed on the outer wall of the piston sleeve, a plurality of sliding grooves are opened through one side of the connecting tube, an L-shaped mounting rod slidingly connected to the sliding groove is fixed on the outer wall of the piston sleeve, a limiting block is fixed on the other end of the L-shaped mounting rod and located on one side of the fitting cover, a limiting groove is opened on the outer wall of the fitting cover and is slidably connected to the limiting block, a plurality of through holes are opened on the outer wall of the fitting cover corresponding to the nozzle, and a plurality of connecting holes are opened through the outer wall of the inner tube and located above the piston sleeve.

[0007] Furthermore, the outer wall of the connecting pipe is provided with an external thread.

[0008] Furthermore, a protective cover is provided on the outer wall of the connecting pipe and below the external thread, and the limiting block and the limiting groove are located inside the protective cover.

[0009] Furthermore, the inner wall of the piston sleeve is provided with two first sealing rings in sliding contact with the inner tube.

[0010] Furthermore, the outer wall of the piston sleeve is provided with a second sealing ring that is in sliding contact with the connecting pipe.

[0011] Furthermore, a limiting frustum block is provided at the top of the inner tube and inside the connecting tube.

[0012] The technical effects achieved by this utility model are:

[0013] The utility model discloses a high-pressure fine water mist nozzle, which is provided with a fitting cover. The fitting cover utilizes water pressure to push the piston sleeve to move. The piston sleeve drives the limit block to move through the L-shaped mounting rod. The limit block cooperates with the limit groove to drive the fitting cover to rotate. When the through hole is aligned with the nozzle, the nozzle can be used normally. When the through hole and the nozzle are misaligned, the fitting cover can be used to protect the nozzle, effectively shielding the nozzle to prevent dust and other impurities from accumulating at the nozzle, thereby preventing the nozzle from being blocked, so that the high-pressure fine water mist nozzle can be used normally in the future, which is more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention;

[0015] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention when viewed from above;

[0016] Figure 3 It is a side view cutaway structural schematic diagram of the present invention.

[0017] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0018] 1. Nozzle body; 2. Inner tube; 3. Connecting tube; 4. Piston sleeve; 5. Slide groove; 6. L-shaped mounting rod; 7. Stop block; 8. Fitting cover; 9. Stop groove; 10. Through hole; 11. Connecting hole; 12. Nozzle; 13. Protective cover; 14. Spring. DETAILED DESCRIPTION

[0019] In order to make the purpose and advantages of this utility more clear, the utility is described in detail below with reference to the embodiments. It should be understood that the following text is only used to describe one or several specific implementation methods of this utility and does not strictly limit the scope of protection specifically requested by this utility.

[0020] like Figure 1-3As shown, a high-pressure fine water mist nozzle comprises a nozzle body 1, a plurality of nozzles 12 are arranged around the outer wall of the nozzle body 1, a fitting cover 8 is rotatably installed on the outer wall of the nozzle body 1, an inner tube 2 is fixed through the top of the nozzle body 1, a connecting tube 3 is fixed on the top of the nozzle body 1 corresponding to the inner tube 2, and the inner tube 2 is located in the connecting tube 3, a piston sleeve 4 is sealingly and slidably installed between the inner tube 2 and the connecting tube 3, a plurality of springs 14 fixed to the top of the nozzle body 1 are fixed on the outer wall of the piston sleeve 4, a plurality of slide grooves 5 are opened through one side of the connecting tube 3, an L-shaped mounting rod 6 slidably connected to the slide groove 5 is fixed on the outer wall of the piston sleeve 4, a limiting block 7 is fixed on the other end of the L-shaped mounting rod 6 and located on one side of the fitting cover 8, a limiting groove 9 is opened on the outer wall of the fitting cover 8 and is slidably connected to the limiting block 7, a plurality of through holes 10 are opened on the outer wall of the fitting cover 8 corresponding to the nozzle 12, the outer wall of the inner tube 2 and located above the piston sleeve 4 are through The piston sleeve 4 is provided with a plurality of connecting holes 11, which has a simple structure and is easy to operate. When water enters between the connecting pipe 3 and the inner tube 2, the water pressure drives the piston sleeve 4 to move until the connecting hole 11 leaks out, so that the water passes through the connecting hole 11 into the nozzle body 1 and is sprayed out from the nozzle 12. At the same time, during the movement of the piston sleeve 4, the L-shaped mounting rod 6 is driven to move, and the L-shaped mounting rod 6 drives the limiting block 7 to move, so that the limiting block 7 cooperates with the limiting groove 9, drives the fitting cover 8 to rotate, and makes the through hole 10 align with the nozzle 12, which is convenient for water to be sprayed out. When the water supply is stopped, the elastic force of the spring 14 drives the piston sleeve 4 to move up and reset, blocking the connecting hole 11. At the same time, the L-shaped mounting rod 6 drives the limiting block 7 to move, so that the limiting block 7 cooperates with the limiting groove 9, drives the fitting cover 8 to rotate, and makes the through hole 10 misaligned with the nozzle 12, thereby protecting the nozzle 12 and preventing the accumulation and clogging of external dust when not in use, which affects the subsequent use of the equipment.

[0021] like Figure 1-3 As shown, the outer wall of the connecting pipe 3 is provided with an external thread to facilitate the installation of the nozzle body 1;

[0022] like Figure 1-3 As shown, a protective cover 13 is provided on the outer wall of the connecting pipe 3 and below the external thread, and the limit block 7 and the limit groove 9 are located in the protective cover 13, which is convenient for protecting the limit block 7, the limit groove 9 and the L-shaped mounting rod 6, which is relatively complete;

[0023] like Figure 3 As shown, the inner wall of the piston sleeve 4 is provided with two first sealing rings in sliding contact with the inner tube 2, which increases the sealing performance of the connection between the piston sleeve 4 and the inner tube 2;

[0024] like Figure 3 As shown, the outer wall of the piston sleeve 4 is provided with a second sealing ring that is in sliding contact with the connecting pipe 3, thereby increasing the sealing performance of the connection between the piston sleeve 4 and the connecting pipe 3;

[0025] like Figure 1and 3 As shown, a limiting frustum block is provided at the top of the inner tube 2 and inside the connecting tube 3, so as to limit the movement of the piston sleeve 4 and enable the fire water to smoothly enter between the inner tube 2 and the connecting tube 3.

[0026] The working principle of the utility model is as follows: when water enters between the connecting pipe 3 and the inner tube 2, the water pressure drives the piston sleeve 4 to move until the connecting hole 11 leaks out, so that the water passes through the connecting hole 11 into the sprinkler head body 1 and is sprayed out from the nozzle 12. At the same time, during the movement of the piston sleeve 4, the L-shaped mounting rod 6 is driven to move, and the L-shaped mounting rod 6 drives the limit block 7 to move, so that the limit block 7 cooperates with the limit groove 9, drives the fitting cover 8 to rotate, and makes the through hole 10 align with the nozzle 12, which is convenient for water to be sprayed out. When the water supply is stopped, the elastic force of the spring 14 drives the piston sleeve 4 to move up and reset, blocking the connecting hole 11. At the same time, the L-shaped mounting rod 6 drives the limit block 7 to move, so that the limit block 7 cooperates with the limit groove 9, drives the fitting cover 8 to rotate, and makes the through hole 10 misaligned with the nozzle 12, thereby protecting the nozzle 12 and preventing the accumulation and blockage of external dust when not in use, thereby affecting the subsequent use of the equipment.

[0027] The above description is only a preferred embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications should also be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this application shall be implemented in accordance with conventional means in the art unless otherwise specified or limited.

Claims

1. A high-pressure water mist nozzle, characterized by: The invention comprises a nozzle body (1), wherein a plurality of nozzles (12) are arranged around the outer wall of the nozzle body (1), a fitting cover (8) is rotatably mounted on the outer wall of the nozzle body (1), an inner tube (2) is fixed through the top of the nozzle body (1), a connecting tube (3) is fixed on the top of the nozzle body (1) corresponding to the inner tube (2), and the inner tube (2) is located in the connecting tube (3), a piston sleeve (4) is sealed and slidably mounted between the inner tube (2) and the connecting tube (3), and a plurality of springs (14) fixed to the top of the nozzle body (1) are fixed on the outer wall of the piston sleeve (4). A plurality of slide grooves (5) are provided on one side of the connecting tube (3), an L-shaped mounting rod (6) is fixed on the outer wall of the piston sleeve (4) and is slidably connected to the slide groove (5), a limiting block (7) is fixed on the other end of the L-shaped mounting rod (6) and is located on one side of the fitting cover (8), a limiting groove (9) is provided on the outer wall of the fitting cover (8) and is slidably connected to the limiting block (7), a plurality of through holes (10) are provided on the outer wall of the fitting cover (8) corresponding to the nozzle (12), and a plurality of connecting holes (11) are provided on the outer wall of the inner tube (2) and are located above the piston sleeve (4).

2. A high-pressure water mist nozzle according to claim 1, characterized in that: The outer wall of the connecting pipe (3) is provided with an external thread.

3. The high-pressure water mist nozzle according to claim 1, characterized in that: A protective cover (13) is provided on the outer wall of the connecting pipe (3) and below the external thread, and the limiting block (7) and the limiting groove (9) are located inside the protective cover (13).

4. The high-pressure water mist nozzle according to claim 1, characterized in that: The inner wall of the piston sleeve (4) is provided with two first sealing rings in sliding contact with the inner tube (2).

5. The high-pressure water mist nozzle according to claim 1, characterized in that: The outer wall of the piston sleeve (4) is provided with a second sealing ring in sliding contact with the connecting pipe (3).

6. The high-pressure water mist nozzle according to claim 1, characterized in that: A limited position frustum block is provided at the top of the inner tube (2) and inside the connecting tube (3).

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