CN220294038U - Water mist spray head - Google Patents

Abstract

The utility model discloses a fine water mist spray head, which comprises a spray head seat, a lower elastic piece and a valve core, wherein an inlet is formed at the upper end of the spray head seat, a mounting groove is formed in the spray head seat, a medicament spray hole is formed at the lower part of the mounting groove, and a fine water mist spray opening is formed in the middle of the mounting groove; one end of the lower elastic piece is arranged at the bottom of the mounting groove, the other end of the lower elastic piece is arranged at the bottom of the valve core, the valve core is movably arranged in the mounting groove, shi Yatou is formed at the upper end of the valve core, a first channel is formed in the valve core, an input port is formed at the upper end of the first channel, an output port is formed at the lower end of the first channel, a first sealing structure and a second sealing structure are formed at the outer side of the valve core, and the valve core moves so that a medicament injection hole is located between the first sealing structure and the second sealing structure or a water mist injection hole is located between the first sealing structure and the second sealing structure. According to the utility model, the valve core is movably arranged, so that the fire extinguishing agent can be sprayed, and the fine water mist can be sprayed, thereby reducing the cost.

Description

Water mist spray head

Technical Field

The utility model relates to the technical field of spray heads, in particular to a water mist spray head.

Background

The water mist fire extinguishing system is a fire-fighting facility with very wide application, has the advantages of safety, environmental protection, energy conservation and the like as an alternative technology, and has an indispensable position in the fire-fighting industry. The water mist spray head is an important component element of the water mist fire extinguishing system, water under certain pressure is sprayed out of the nozzle holes at high speed after passing through the spray head, and the water mist spray head generates strong friction with surrounding air to form water mist, so that the effects of rapidly controlling and extinguishing fire are achieved.

Before spraying the fine water mist, the fire extinguishing agent can be sprayed, and then the fine water mist is sprayed, so that the fire extinguishing effect is improved. The water mist spray head in the prior art can only spray water mist generally, such as a water mist fire-extinguishing spray head disclosed in application number 202021557597.7, and such as a water mist fire-extinguishing spray head disclosed in application number 200620041097.1, when the water mist fire-extinguishing spray head is used, water forms water mist after passing through the spray head, and when fire-extinguishing agent needs to be sprayed, the medicament spray head needs to be used, so that the installation cost is increased. In view of the above, the present inventors have made intensive studies to solve the above-mentioned drawbacks of the prior art.

Disclosure of Invention

The present utility model aims to solve at least to some extent one of the technical problems in the above-described technology. Therefore, the utility model aims to provide a water mist spray head, which can spray fire extinguishing agent and water mist by movably arranging a valve core, thereby reducing cost.

In order to achieve the above purpose, the utility model provides a fine water mist spray head, which comprises a spray head seat, a lower elastic piece and a valve core, wherein an inlet is formed at the upper end of the spray head seat, a mounting groove is formed in the spray head seat, a medicament spray hole is formed at the lower part of the mounting groove, the medicament spray hole is communicated with the mounting groove and the outside, a fine water mist spray hole is formed at the middle part of the mounting groove, and the fine water mist spray hole is communicated with the mounting groove and the outside; one end of the lower elastic piece is arranged at the bottom of the mounting groove, the other end of the lower elastic piece is arranged at the bottom of the valve core, the valve core is movably arranged in the mounting groove, shi Yatou is formed at the upper end of the valve core, a first channel is formed in the valve core, an input port is formed at the upper end of the first channel, an output port is formed at the lower end of the first channel, a first sealing structure and a second sealing structure are formed at the outer side of the valve core, and the valve core moves so that a medicament injection hole is located between the first sealing structure and the second sealing structure or a water mist injection hole is located between the first sealing structure and the second sealing structure.

Further, the nozzle base comprises a connecting part and a body part integrally formed with the connecting part, an inlet is formed at the inner side of the connecting part, and connecting threads are formed at the outer side of the connecting part.

Further, a seal ring is provided at the connection position of the body portion and the connection portion.

Further, the first sealing structure comprises a first connecting ring, a second connecting ring and a first sealing ring, a first groove is formed between the second connecting ring and the first connecting ring, and the first sealing ring is arranged in the first groove.

Further, the second sealing structure comprises a third connecting ring, a fourth connecting ring and a second sealing ring, a second groove is formed between the fourth connecting ring and the third connecting ring, and the second sealing ring is arranged in the second groove.

The connecting head comprises a connecting post and a driving plate, wherein the outer side part of the lower part of the connecting post is provided with external threads connected with the connecting part of the nozzle seat, the connecting post is provided with a second channel, the upper part of the connecting post is provided with a perforation, and the perforation is communicated with the second channel and the outside; the drive plate and the connecting column are integrally formed.

Further, a cross groove or a straight groove is arranged on the driving plate.

Further, a filter screen is arranged between the connecting part of the nozzle seat and the connecting column.

Further, the connector further comprises an upper elastic piece, wherein the upper elastic piece is an upper spring, the lower end of the upper spring is abutted against the first connecting ring, and the upper end of the upper spring is abutted against the lower end of the connector.

Further, the lower elastic piece is a lower spring, and the upper end of the lower spring is abutted against the fourth connecting ring.

Further, the side part of the pressing head is provided with a third groove, a third sealing ring is arranged in the third groove, and the pressing head can be inserted into the second channel.

Further, the input port comprises a left input port and a right input port, and the right input port and the left input port are symmetrically arranged.

After the structure is adopted, the water mist spray head has the following beneficial effects:

when the fire extinguishing device is used, the connecting pipe can be connected with the inlet of the nozzle seat, then fire extinguishing agent is input into the nozzle seat, and because the fire extinguishing agent is in a gas state, the pressure applied by the gas fire extinguishing agent to the pressure applying head is small, the water mist jet orifice is positioned between the first sealing structure and the second sealing structure, so that the fire extinguishing agent enters the first channel along the input port, is output from the output port along the first channel, and is finally output from the agent jet orifice to the outside for jetting the fire extinguishing agent. When fire extinguishing agent sprays a certain quantity, input water in to the nozzle holder, the pressure that water applyed to the pressure head is big for the case moves down, thereby makes the medicament jet orifice be located between first seal structure and the second seal structure, so, blocks up the medicament jet orifice, prevents that water from exporting from the medicament jet orifice, ensures that water is directly sprayed from thin water smoke jet orifice along the mounting groove and forms thin water smoke. Therefore, the utility model can spray fire extinguishing agent and fine water mist, thereby reducing cost.

Secondly, through setting up connecting portion and body portion, when the installation, can aim at connecting portion with the connecting pipe, then rotate connecting portion to accomplish the connection of connecting pipe and connecting portion fast. Wherein, the junction of body portion and connecting portion department sets up the sealing ring to prevent that the medium of input from leaking from body portion and connecting portion position.

Third, through setting up first sealing washer and second sealing washer, when using, first sealing washer and second sealing washer outside support and lean on the mounting groove inside wall, so, effectively prevent fire extinguishing agent from water mist jet orifice injection, prevent that water from the medicine jet orifice blowout.

Drawings

FIG. 1 is a schematic view showing the structure of a fine mist spray head according to an embodiment of the present utility model;

FIG. 2 is a schematic view of a fine mist spray head according to an embodiment of the present utility model;

FIG. 3 is an exploded view of a fine mist head according to an embodiment of the present utility model;

FIG. 4 is a schematic diagram illustrating connection between a nozzle base, a lower elastic member and a valve core according to an embodiment of the present utility model;

fig. 5 is a schematic view showing a structure in which a fine mist spray head sprays fire extinguishing agent according to an embodiment of the present utility model;

FIG. 6 is a schematic view of a structure of a fine mist spray head for spraying fine mist according to an embodiment of the present utility model;

fig. 7 is a schematic structural view of a valve cartridge according to an embodiment of the present utility model.

Description of the reference numerals

The cartridge 1, the inlet 11, the mounting groove 12, the medicine ejection hole 13, the fine mist ejection hole 14, the connection portion 15, the connection screw 151, the seal ring 152, the body portion 16, the lower elastic member 2, the valve element 3, the pressing head 31, the third groove 311, the third seal ring 312, the first passage 32, the input port 33, the output port 34, the first seal structure 35, the first connection ring 351, the second connection ring 352, the first seal ring 353, the first groove 354, the second seal structure 36, the third connection ring 361, the fourth connection ring 362, the second seal ring 363, the second groove 364, the connection head 4, the connection post 41, the second passage 411, the perforation 412, the driving plate 42, the straight groove 421, the filter screen 5, the upper elastic member 6.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

As shown in fig. 1 to 7, the fine water mist spray head of the utility model comprises a spray head seat 1, a lower elastic piece 2 and a valve core 3, wherein an inlet 11 is arranged at the upper end of the spray head seat 1, a mounting groove 12 is formed in the spray head seat 1, a medicament spray hole 13 is arranged at the lower part of the mounting groove 12, the medicament spray hole 13 is communicated with the mounting groove 12 and the outside, a fine water mist spray hole 14 is arranged at the middle part of the mounting groove 12, and the fine water mist spray hole 14 is communicated with the mounting groove 12 and the outside; one end of the lower elastic member 2 is arranged at the bottom of the mounting groove 12, the other end of the lower elastic member 2 is arranged at the bottom of the valve core 3, the valve core 3 is movably arranged in the mounting groove 12, a Shi Yatou is formed at the upper end of the valve core 3, a first channel 32 is formed in the valve core 3, an input port 33 is formed at the upper end of the first channel 32, an output port 34 is formed at the lower end of the first channel 32, a first sealing structure 35 and a second sealing structure 36 are formed at the outer side of the valve core 3, and the valve core 3 moves so that the medicament injection hole 13 is positioned between the first sealing structure 35 and the second sealing structure 36 or the fine water mist injection hole 14 is positioned between the first sealing structure 35 and the second sealing structure 36.

Thus, in the fine water mist spray head according to the present utility model, when in use, the connection pipe is connected to the inlet 11 of the spray head holder 1, and then the fire extinguishing agent is introduced into the spray head holder 1, and the fire extinguishing agent is in a gaseous form, and the gaseous fire extinguishing agent exerts a small pressure on the pressure applying head 31, so that the fine water mist spray opening 14 is positioned between the first seal structure 35 and the second seal structure 36, and thus the fire extinguishing agent enters the first passage 32 along the inlet 33, is then outputted from the outlet 34 along the first passage 32, and is finally outputted from the agent spray opening 13 to the outside, thereby spraying the fire extinguishing agent. When a certain amount of fire extinguishing agent is sprayed, water is input into the spray head seat 1, the pressure applied by the water to the pressure applying head 31 is high, so that the valve core 3 moves downwards, and the agent spraying hole 13 is positioned between the first sealing structure 35 and the second sealing structure 36, so that the agent spraying hole 13 is blocked, the water is prevented from being output from the agent spraying hole 13, and the water is ensured to be directly sprayed from the fine water mist spraying hole 14 along the mounting groove 12 to form fine water mist. Therefore, the utility model can spray fire extinguishing agent and fine water mist, thereby reducing cost.

In this example, after the medium enters the nozzle holder 1, the medium directly applies pressure to the pressure applying head 31, so as to drive the valve core 3 to move.

Alternatively, the nozzle holder 1 includes a connecting portion 15 and a body portion 16 integrally formed with the connecting portion 15, an inlet 11 is formed on an inner side of the connecting portion 15, and a connecting thread 151 is formed on an outer side of the connecting portion 15. By providing the connection portion 15 and the body portion 16, the connection pipe can be aligned to the connection portion 15 at the time of installation, and then the connection portion 15 is rotated, thereby rapidly completing the connection of the connection pipe and the connection portion 15. Wherein, a sealing ring 152 is arranged at the connection position of the body part 16 and the connection part 15 to prevent the input medium from leaking out of the position of the body part 16 and the connection part 15.

In some examples, the first sealing structure 35 includes a first connection ring 351, a second connection ring 352, and a first sealing ring 353, a first groove 354 is formed between the second connection ring 352 and the first connection ring 351, and the first sealing ring 353 is disposed within the first groove 354. The second sealing structure 36 includes a third connecting ring 361, a fourth connecting ring 362, and a second sealing ring 363, a second groove 364 is formed between the fourth connecting ring 362 and the third connecting ring 361, and the second sealing ring 363 is disposed in the second groove 364. By providing the first seal 353 and the second seal 363, the outer sides of the first seal 353 and the second seal 363 are abutted against the inner side wall of the installation groove 12 when in use, thus effectively preventing the fire extinguishing agent from being ejected from the fine mist ejection port 14 and preventing water from being ejected from the agent ejection port 13.

In this example, the connector 4 further comprises a connector 4, the connector 4 comprises a connecting column 41 and a driving plate 42, an external thread connected with the connecting part 15 of the nozzle holder 1 is arranged at the outer side part of the lower part of the connecting column 41, the connecting column 41 is provided with a second channel 411, a perforation 412 is formed at the upper part of the connecting column 41, and the perforation 412 is communicated with the second channel 411 and the outside; the driving plate 42 is integrally formed with the connection post 41.

Wherein, an internal thread may be disposed inside the connection portion 15 of the nozzle holder 1, and during installation, the external thread and the internal thread of the connection post 41 are connected, so that the connector 4 is fixed on the nozzle holder 1, and after the connector 4 is fixed on the nozzle holder 1, a medium (such as water or a gaseous fire extinguishing agent) enters the second channel 411 through the perforation 412, and then enters the installation slot 12 through the second channel 411.

In order to facilitate connection between the connector 4 and the nozzle holder 1, the driving plate 42 in this example is provided with a cross slot or a linear slot 421, so that a linear screwdriver can be used to align with the linear slot 421, or a cross screwdriver can be used to align with the cross slot, and then force is applied to the screwdriver, so that the connector 4 rotates, and quick connection between the connector 4 and the nozzle holder 1 is realized. When in use, the connector 4 can be adjusted to be screwed into the nozzle seat 1 according to the requirements, so that the fine water mist jet orifice 14 is positioned between the first sealing structure 35 and the second sealing structure 36 when fire extinguishing agent is introduced; the medicine ejection hole 13 is located between the first seal structure 35 and the second seal structure 36 when water is introduced.

In order to prevent impurities in the medium from blocking the medicament injection hole 13 or the fine water mist injection hole 14, a filter screen 5 is arranged between the connecting part 15 of the nozzle base 1 and the connecting column 41, so that the impurities cannot enter the nozzle base 1, after the impurities are accumulated to a certain degree, the connecting pipe and the nozzle base 1 can be detached, then the impurities are cleaned, and the filter screen is reinstalled after the cleaning is finished.

In this example, the device further includes an upper elastic member 6, where the upper elastic member 6 is an upper spring, the lower end of the upper spring abuts against the first connection ring 351, the upper end of the upper spring abuts against the lower end of the connection head 4, and by setting the upper spring, when the medium input is stopped, the upper spring drives Shi Yatou to recover the original shape, so as to prevent the pressure applying head 31 from striking the connection head 4. Further, the lower elastic member 2 is a lower spring, and the upper end of the lower spring abuts against the fourth connecting ring 362.

In some examples, the third groove 311 is formed on the side of the pressure applying head 31, the third sealing ring 312 is formed in the third groove 311, the pressure applying head 31 can be inserted into the second channel 411, and by providing the third sealing ring 312, the pressure applying head 31 is slowly inserted into the second channel 411 when the medium is stopped to be input, so as to realize the closing of the water mist spray head.

Further, the input port 33 includes a left input port 33 and a right input port 33, and the right input port 33 is symmetrically disposed with respect to the left input port 33, so that the fire extinguishing agent is conveniently and uniformly input into the first passage 32 from both the right input port 33 and the left input port 33 and then output from the agent injection hole 13.

The above examples and drawings are not intended to limit the form or form of the present utility model, and any suitable variations or modifications thereof by those skilled in the art should be construed as not departing from the scope of the present utility model.

Claims (10)

1. A fine water mist spray head, which is characterized in that: the device comprises a nozzle seat, a lower elastic piece and a valve core, wherein an inlet is formed at the upper end of the nozzle seat, a mounting groove is formed in the nozzle seat, a medicament injection hole is formed at the lower part of the mounting groove, the medicament injection hole is communicated with the mounting groove and the outside, a fine water mist injection hole is formed in the middle of the mounting groove, and the fine water mist injection hole is communicated with the mounting groove and the outside; one end of the lower elastic piece is arranged at the bottom of the mounting groove, the other end of the lower elastic piece is arranged at the bottom of the valve core, the valve core is movably arranged in the mounting groove, shi Yatou is formed at the upper end of the valve core, a first channel is formed in the valve core, an input port is formed at the upper end of the first channel, an output port is formed at the lower end of the first channel, a first sealing structure and a second sealing structure are formed at the outer side of the valve core, and the valve core moves so that a medicament injection hole is located between the first sealing structure and the second sealing structure or a water mist injection hole is located between the first sealing structure and the second sealing structure.

2. The fine mist nozzle of claim 1, wherein: the shower nozzle seat includes connecting portion and with connecting portion integrated into one piece's body portion, the connecting portion inboard forms the import, the connecting portion outside forms the connecting thread.

3. The fine mist nozzle of claim 2, wherein: the connecting position of the body part and the connecting part is provided with a sealing ring.

4. The fine mist nozzle of claim 1, wherein: the first sealing structure comprises a first connecting ring, a second connecting ring and a first sealing ring, a first groove is formed between the second connecting ring and the first connecting ring, and the first sealing ring is arranged in the first groove.

5. The fine mist nozzle of claim 4, wherein: the second sealing structure comprises a third connecting ring, a fourth connecting ring and a second sealing ring, a second groove is formed between the fourth connecting ring and the third connecting ring, and the second sealing ring is arranged in the second groove.

6. The fine mist nozzle of claim 5, wherein: the connecting head comprises a connecting column and a driving plate, wherein the outer side part of the lower part of the connecting column is provided with external threads connected with the connecting part of the nozzle seat, the connecting column is provided with a second channel, the upper part of the connecting column is provided with a perforation, and the perforation is communicated with the second channel and the outside; the drive plate and the connecting column are integrally formed.

7. The fine mist nozzle of claim 6, wherein: the driving plate is provided with a cross groove or a straight groove.

8. The fine mist nozzle of claim 6, wherein: a filter screen is arranged between the connecting part of the nozzle seat and the connecting column.

9. The fine mist nozzle of claim 6, wherein: the upper elastic piece is an upper spring, the lower end of the upper spring is propped against the first connecting ring, and the upper end of the upper spring is propped against the lower end of the connecting head.

10. The fine mist nozzle of claim 6, wherein: the lower elastic piece is a lower spring, and the upper end of the lower spring is abutted against the fourth connecting ring.