CN106881212B - Multifunctional spray jet nozzle - Google Patents

Abstract

The technology discloses a spray jet multi-function nozzle, which is used for the periphery of the roof and the façade of the outer wall of the multi-high-rise building. Under the two-stage water supply of low pressure and high pressure, it can respectively meet the needs of spray haze reduction and dust removal, facade cleaning or fire protection. It includes a nozzle outer wall with a valve cavity, a pressure control component composed of a pressure control piston, a pressure control spring and a pressure control sleeve, and a guide component composed of a guide piston, a guide spring and a guide sleeve. The pressure control piston is provided with a pressure control spray flow channel and a pressure control jet flow channel, and a guide spray flow channel is arranged in the guide piston; the spray port is communicated with the guide spray flow channel; the bypass port is connected with the guide spray flow channel; There is a diversion jet flow channel on the side wall of the valve cavity; when the water pressure entering the valve cavity is small, the water only enters the diversion spray flow channel through the pressure-controlled spray flow channel, and then sprays out through the spray port; when it enters the valve cavity When the water pressure is high, the water enters the diversion spray channel through the pressure-controlled spray channel and the pressure-controlled jet channel at the same time, and flows out through the bypass port and the diversion jet channel.

Description

Spray jet multi-function nozzle

technical field

The present technology relates to the technical field of spray equipment, in particular to a spray jet multifunctional nozzle.

Background technique

Due to the rapid development of cities, smog has become a pollution disaster that many cities must consider. However, although the spray intensity of the existing nozzles on the market is very large, they are mostly used for spraying jets, and the diameter of the sprayed water mist droplets is large, and the inhibitory effect on haze is mainly PM _2.5 is not obvious, and it is used in the use of The process requires a huge amount of water, resulting in a waste of water resources.

At the same time, once a fire occurs in a high-rise building, it often cannot be suppressed in time due to its height, causing great losses to people's life and property safety.

Based on the above reasons, this technology integrates relevant technologies in urban fire protection and sprinkler design, and develops a spray jet multi-function sprinkler that integrates spray and spray, which effectively meets the needs of spray haze reduction and dust removal, facade cleaning and fire protection.

SUMMARY OF THE INVENTION

The purpose of this technology is to propose a multi-functional spray head of spray jet in order to solve the shortcomings existing in the prior art.

In order to achieve the above purpose, the present technology adopts the following technical solutions:

The spray jet multi-functional nozzle of the present technology includes an outer wall 1 of the nozzle with a valve cavity inside, and a pressure control assembly and a flow guide assembly are sequentially arranged in the valve cavity along the valve cavity from the inlet to the outlet. The pressure control assembly includes a pressure control piston 8, a pressure control spring 7 and a pressure control sleeve 6, and the guide assembly includes a guide piston 2, a guide spring 5, a guide sleeve 4 and a nozzle striker 3;

The pressure control sleeve 6 and the guide sleeve 4 are both arranged in the valve cavity; the pressure control piston 8 and the guide piston 2 can move axially relative to the pressure control sleeve 6 and the guide sleeve 4 respectively; 8 and the pressure control sleeve 6, and between the diversion piston 2 and the diversion sleeve 4 are provided with springs, which keep the pressure control piston 8 and the diversion piston 2 away from the pressure control sleeve 6 in normal state. and the guide sleeve 4 and close to the position of the valve cavity inlet 24;

The pressure control piston 8 has a pressure control spray flow channel 11 and a pressure control jet flow channel 19, and in the guide piston 2 there is a guide spray flow channel 13; The spray port 22 communicated with the diversion spray channel 13, and the nozzle striker 3 is axially opposite to the spray port 22 on the outside of the nozzle outer wall 1;

A bypass port 18 is opened in the radial direction of the guide piston 2 and communicated with the guide spray flow channel 13; a guide jet flow channel 14 is opened on the side wall of the valve cavity;

When the water pressure entering the valve cavity is small, the pressure control piston 8 and the guide piston 2 are located away from the pressure control sleeve 6 and the guide sleeve 4 and close to the valve cavity inlet 24. The pressure control jet flow channel 19 and the guide The spray flow channel 13 is not connected, and the bypass port 18 is staggered from the guide jet flow channel 14; the water only enters the guide spray flow channel 13 through the pressure-controlled spray flow channel 11, and then sprays out through the spray port 22;

When the water pressure entering the valve cavity is large, the pressure control piston 8 and the guide piston 2 are pushed to move axially. The pressure control piston 8 and the guide piston 2 are located close to the pressure control sleeve 6 and the guide sleeve 4 and away from the valve. At the position of the cavity inlet 24, the pressure-controlled jet flow channel 19 communicates with the diversion spray flow channel 13, and the bypass port 18 is radially opposite to the diversion jet flow channel 14; the water passes through the pressure-controlled spray flow channel 11 and the pressure-controlled jet flow The channel 19 enters the diversion spray channel 13 at the same time, and flows out through the bypass port 18 and the diversion jet channel 14 .

Compared with the prior art, the beneficial effect of the present technology is that no matter where the pressure control piston 8 moves relative to the pressure control sleeve 6, the pressure control spray flow channel 11 communicates with the guide spray flow channel 13. Therefore, when water enters the valve cavity from the valve cavity inlet 24, regardless of the pressure of the water, the water flows into the guide spray flow channel 13 through the pressure-controlled spray flow channel 11.

When the water pressure is small, the pressure control piston 8 is located away from the pressure control sleeve 6 and close to the valve cavity inlet 24, and the pressure control jet flow channel 19 is not communicated with the diversion spray flow channel 13; at the same time, the diversion piston 2 is located at the position of At the position away from the guide sleeve 4 and close to the valve cavity inlet 24, the bypass port 18 is staggered from the guide jet flow channel 14, and the guide spray flow channel 13 is not communicated with the guide jet flow channel 14; therefore, water will not It enters the diversion spray channel 13 through the pressure-controlled jet flow channel 19 , and only enters the diversion spray channel 13 through the pressure-controlled spray channel 11 , and the water entering the diversion spray channel 13 will not pass through the diversion jet channel 14 The outflow can only be sprayed out through the spray port 22, and the spray head strikes the needle 3 to form a mist.

When the water pressure is high, the water pushes the pressure control piston 8 and the guide piston 2 to move in the direction of the valve cavity outlet in the axial direction. The pressure control piston 8 is located close to the pressure control sleeve 6 and away from the valve cavity inlet 24. The pressure jet flow channel 19 is also communicated with the guide spray flow channel 13; at the same time, the guide piston 2 is located close to the guide sleeve 4 and away from the valve cavity inlet 24, and the bypass port 18 and the guide jet flow channel 14 are in diameter. Oppositely, the diversion spray channel 13 communicates with the diversion jet channel 14 through the bypass port 18; therefore, the water enters the diversion spray channel 13 through the pressure-controlled spray channel 11 and the pressure-controlled jet channel 19 at the same time, and enters the Most of the water in the diversion spray flow channel 13 flows out through the bypass port 18 and the diversion jet flow channel 14; because the cross-sectional area of the spray port 22 is small and the resistance is large, only a small part of the water is sprayed through the spray port 22 at this time. out.

As a further improvement to the above-mentioned spray jet multi-function nozzle, there is a sealing ring table 26 on the inner wall of the pressure control sleeve 6, and the outer circumference of the pressure control piston 8 is in contact with the sealing ring table 26; the outlet of the pressure control spray channel 11 is located in the extrusion The pressure piston is far from the end face of the valve cavity inlet 24; the outlet of the pressure control jet flow channel 19 is located on the outer circumference of the pressure control piston 8;

When the water pressure entering the valve cavity is small, the pressure control piston 8 is located away from the pressure control sleeve 6 and close to the valve cavity inlet 24, and the outlet of the pressure control jet flow channel 19 is located between the valve cavity inlet 24 and the sealing ring table, The pressure-controlled jet flow channel 19 is not communicated with the diversion spray flow channel 13;

When the water pressure entering the valve cavity is large, the pressure control piston 8 and the guide piston 2 are pushed to move axially. The pressure control piston 8 and the guide piston 2 are located close to the pressure control sleeve 6 and the guide sleeve 4 and away from the valve. At the position of the cavity inlet 24, the outlet of the pressure-controlled jet flow channel 19 communicates with the transition cavity 28 located on the side of the sealing ring platform 26 close to the valve cavity outlet, and the pressure-controlled jet flow channel 19 communicates with the diversion spray flow through the transition cavity 28. Road 13 is connected.

As a further improvement to the above-mentioned spray jet multi-functional nozzle, it also includes a nozzle rear cover 9 that is detachably connected to the outer wall of the nozzle, and the nozzle rear cover 9 is located at the valve cavity inlet 24 and has a channel communicating with the valve cavity; The cover 9 plays a limiting role in the movement of the pressure control piston 8 in the direction of the valve cavity inlet 24 under the action of the spring.

As a further improvement to the above-mentioned spray jet multifunctional nozzle, a groove is formed on the inner side of the nozzle outer wall 1 opposite to the outer circumference of the pressure control sleeve 6 for arranging the U-shaped sealing ring.

As a further improvement to the above-mentioned spray jet multifunctional nozzle, a groove is formed on the outer periphery of the diversion piston 2 in contact with the inner hole of the outer wall 1 of the nozzle to arrange a U-shaped sealing ring.

As a further improvement to the above spray jet multifunctional nozzle, the inner hole of the nozzle outer wall 1 in contact with the guide sleeve 4 is provided with a groove for arranging a U-shaped sealing ring.

As a further improvement to the above-mentioned spray jet multifunctional nozzle, the guide jet flow channel 14 is an arc-shaped groove structure.

Description of drawings

Fig. 1 is an exploded view of the spray jet multifunctional nozzle proposed by the present technology;

Fig. 2 is the structural representation of spray jet multifunctional nozzle;

Figure 3 is a schematic diagram of the structure of the spray jet multi-function nozzle (the guide spring, pressure control spring, etc. are omitted);

Fig. 4 is the schematic diagram of the pressure control piston;

FIG. 5 is a schematic view of the diversion piston.

In the picture: 1 nozzle outer wall, 2 nozzle piston, 3 nozzle striker, 4 nozzle sleeve, 5 nozzle spring, 6 pressure control sleeve, 7 pressure control spring, 8 pressure control piston, 9 nozzle rear cover, 10 connection Parts, 11 pressure-controlled spray flow channels, 13 guide spray flow channels, 14 flow-guided jet flow channels, 15 pressure-controlled spray flow channel inlets, 16 pressure-controlled spray flow channel inlets, 18 bypass ports, 19 pressure-controlled jet flow channels , 22 spray ports, 23 valve chambers, 24 valve chamber inlets, 25 valve chamber outlets, 26 seal rings, 27 pressure-controlled spray flow channel outlets, 28 transition chambers, 29 pressure-controlled jet flow channel outlets.

Detailed ways

The technical solutions in the embodiments of the present technology will be clearly and completely described below with reference to the drawings in the embodiments of the present technology. Obviously, the described embodiments are only a part of the embodiments of the present technology, but not all of the embodiments.

1-3, the spray jet multi-function nozzle includes the outer wall 1 of the nozzle, the rear cover 9 of the nozzle, a pressure control assembly and a flow guide assembly, and the pressure control assembly includes a pressure control piston 8, a pressure control spring 7 and a pressure control sleeve 6, The guide assembly includes a guide piston 2 , a guide spring 5 , a guide sleeve 4 and a nozzle striker 3 . The rear cover 9 of the spray head is positioned on the outer wall 1 of the spray head through the outer ring protrusion and its own internal thread, and a water inlet is opened in the middle, which is connected to the connecting piece 10 through the external thread. The front end of the outer wall 1 of the sprinkler head is tapered, with a hole in the middle, and there are multiple grooves in the interior for positioning internal components. A plurality of grooves are opened on the inner side of the outer wall 1 of the shower head for arranging the U-shaped sealing ring, and a guide jet flow channel 14 is opened under the front end of the outer wall 1 of the shower head to communicate with the inside.

Referring to FIG. 4 , a through hole is opened in the middle of the pressure control piston 8 to form a pressure control spray flow channel 11 , and eight small holes are opened around the pressure control spray flow channel 11 to form a pressure control jet flow channel 19 . The outlet 29 of the pressure-controlled jet flow channel 19 is in the circumferential direction of the pressure-controlled piston. The outlet 27 of the pressure-controlled spray channel 11 is on the front end surface of the pressure-controlled piston. Both the inlet 15 of the pressure-controlled spray channel 11 and the inlet 16 of the pressure-controlled jet channel 19 are on the rear end surface of the pressure-controlled piston. The pressure control spring 7 is arranged between the pressure control piston 8 and the pressure control sleeve 6 , and in the initial state, the pressure control piston 8 is in contact with the rear cover 9 of the spray head.

In this technology, one end of the pressure control sleeve 6 is in contact with the pressure control spring 7, and is fixed on the protrusion inside the outer wall 1 of the nozzle under its pressure. Used to arrange U-shaped seals. A through hole is formed in the middle of the guide piston 2 to form a guide spray channel 13 , and the guide spring 5 is arranged between one side of the guide piston 2 and the guide sleeve 4 . A groove is formed on the outer periphery of the guide piston 2 in contact with the inner hole of the outer wall 1 of the spray head for arranging the U-shaped sealing ring. One end of the guide sleeve 4 is in contact with the guide spring 5, and is fixed on the protrusion inside the outer wall 1 of the spray head under its pressure. The inner hole of the outer wall 1 of the nozzle that is in contact with the guide sleeve 4 is provided with a groove for arranging the U-shaped sealing ring.

Referring to FIG. 5 , there is a very thin guide spray channel 13 inside the guide piston 2. When the guide piston 2 is in contact with the pressure control sleeve 6, the water is finally sprayed from the spray port 22 into a mist, and the front end of the guide piston 2 is sprayed into mist. A nozzle striker 3 is provided outside, and the tip of the nozzle striker 3 is axially aligned with the spray port 22 . The diversion spray channel 13 has a bypass port 18 in the radial direction. When the diversion piston 2 moves forward, the diversion spray channel 13 communicates with the diversion jet channel 14 on the outer wall 1 of the nozzle through the bypass port 18. The water is ejected from the guide spray flow channel 13 through the guide jet flow channel 14, and the guide jet flow channel 14 has an arc-shaped groove structure.

When this technology is used, the pressure control component is located at the water inlet to adjust the water pressure and water volume. When the water pressure is low, the compression of the pressure control spring is small, the relative movement distance between the pressure control piston and the pressure control sleeve is small, and the pressure control jet flow channel is blocked. , the water enters the transition chamber 28 from the pressure-controlled spray channel; the water pressure increases, the compression of the pressure-controlled spring increases, the relative moving distance between the pressure-controlled piston and the pressure-controlled sleeve increases, the pressure-controlled jet channel opens, and the water is released from the pressure-controlled The spray flow channel and the pressure-controlled jet flow channel enter the transition cavity, and the water passing area increases. One end of the guide spring is connected to the guide piston, and the other end is connected to the guide sleeve. The guide component controls the opening and closing of the guide jet flow channel. When the water pressure is low, the compression of the guide spring is small, and the guide piston and guide The relative moving distance of the flow sleeve is small, and the diversion jet flow channel is blocked. The water enters the spray port from the diversion spray flow channel and hits the spray needle to form droplets; the water pressure increases, the compression of the diversion spring becomes larger, and the diversion piston becomes larger. The relative moving distance with the guide sleeve becomes larger, the guide jet flow channel is connected, and the water is jetted through the guide jet flow channel. The spray jet multi-functional nozzle proposed by this technology can be applied to the outer periphery of the roof and the facade of the multi-high-rise building. Under the two-stage water supply of low pressure and high pressure, it can respectively meet the needs of spray haze reduction and dust removal, facade cleaning or fire protection.

The above is only a preferred embodiment of the present technology, but the protection scope of the present technology is not limited to this. Equivalent replacement or change of the technical concept thereof shall be included within the protection scope of the present technology.

Claims (7)

1. The spray jet multi-function nozzle, including the nozzle outer wall (1) with a valve cavity (23) inside, along the valve cavity from the inlet (24) to the outlet (25) are sequentially arranged in the valve cavity with pressure control components and flow guides assembly, characterized in that the pressure control assembly includes a pressure control piston (8), a pressure control spring (7) and a pressure control sleeve (6), and the flow guide assembly includes a flow guide piston (2), a flow guide spring (5), the guide sleeve (4) and the nozzle striker (3); The pressure control sleeve (6) and the guide sleeve (4) are both fixed in the valve cavity; the pressure control piston (8) and the guide piston (2) are respectively opposite to the pressure control sleeve (6) and the guide sleeve (4) Axially movable; springs are provided between the pressure control piston (8) and the pressure control sleeve (6), and between the diversion piston (2) and the diversion sleeve (4). The spring keeps the pressure control piston (8) and the guide piston (2) away from the pressure control sleeve (6) and the guide sleeve (4) and close to the valve cavity inlet (24) in a normal state; The pressure control piston (8) has a pressure control spray flow channel (11) and a pressure control jet flow channel (19), and the guide piston (2) has a guide spray flow channel (13); The end of the diversion piston (2) is provided with a spray port (22) that communicates with the diversion spray channel (13), and the nozzle striker (3) is axially connected to the spray port (22) on the outside of the nozzle outer wall (1). relatively; A bypass port (18) is opened in the radial direction of the guide piston (2) and communicated with the guide spray flow channel (13); a guide jet flow channel (14) is opened on the side wall of the valve cavity; When the water pressure entering the valve cavity is small, the pressure control piston (8) and the guide piston (2) are located away from the pressure control sleeve (6) and the guide sleeve (4) and close to the valve cavity inlet (24) , the pressure-controlled jet flow channel (19) is not connected with the diversion spray flow channel (13), and the bypass port (18) is staggered from the diversion jet flow channel (14); water only passes through the pressure-controlled spray flow channel (11) Enter into the diversion spray channel (13), and then spray out through the spray port (22); When the water pressure entering the valve cavity is large, the pressure control piston (8) and the guide piston (2) are pushed to move axially, and the pressure control piston (8) and the guide piston (2) are located close to the pressure control sleeve (6). ), the guide sleeve (4) and away from the valve cavity inlet (24), the pressure control jet flow channel (19) communicates with the guide spray flow channel (13), and the bypass port (18) is connected with the guide jet flow The channels (14) are diametrically opposite; the water enters the diversion spray channel (13) through the pressure-controlled spray channel (11) and the pressure-controlled jet channel (19) at the same time, and passes through the bypass port (18), the diversion channel The jet flow channel (14) flows out. 2. The spray jet multifunctional nozzle according to claim 1, characterized in that: a sealing ring platform (26) is provided on the inner wall of the pressure control sleeve (6), and the outer periphery of the pressure control piston (8) is connected to the sealing ring platform (26). ) contact; the outlet (27) of the pressure-controlled spray channel (11) is located on the end face of the extrusion piston away from the valve cavity inlet (24); the outlet (29) of the pressure-controlled spray channel (19) is located on the pressure-controlled piston (8) on the outer periphery; When the water pressure entering the valve cavity is low, the pressure control piston (8) is located away from the pressure control sleeve (6) and close to the valve cavity inlet (24), and the outlet (29) of the pressure control jet flow channel (19) is located at Between the valve cavity inlet (24) and the sealing ring platform (26), the pressure-controlled jet flow channel (19) is not communicated with the diversion spray flow channel (13); When the water pressure entering the valve cavity is large, the pressure control piston (8) and the guide piston (2) are pushed to move axially, and the pressure control piston (8) and the guide piston (2) are located close to the pressure control sleeve (6). ), the guide sleeve (4) and away from the valve chamber inlet (24), the outlet (29) of the pressure control jet flow channel (19) and the transition chamber located on the side of the sealing ring platform (26) close to the valve chamber outlet (28) communicate with each other, and the pressure-controlled jet flow channel (19) communicates with the diversion spray flow channel (13) through the transition cavity (28). 3. The spray jet multifunctional nozzle according to claim 1, characterized in that: it further comprises a nozzle rear cover (9) detachably connected to the outer wall of the nozzle, and the nozzle rear cover (9) is located at the valve cavity inlet (24) There is a channel communicating with the valve cavity; the rear cover (9) of the nozzle has a limiting effect on the movement of the pressure control piston (8) towards the valve cavity inlet (24) under the action of the spring. 4. The spray jet multifunctional nozzle according to claim 1, wherein a groove is formed on the inner side of the nozzle outer wall (1) opposite to the outer periphery of the pressure control sleeve (6) for arranging the U-shaped sealing ring. 5. The spray jet multifunctional nozzle according to claim 1, wherein a groove is formed on the outer periphery of the guide piston (2) in contact with the inner hole of the outer wall (1) of the nozzle for arranging the U-shaped sealing ring. 6. The spray jet multifunctional nozzle according to claim 1, characterized in that: the inner hole of the nozzle outer wall (1) in contact with the guide sleeve (4) is provided with a groove for arranging the U-shaped sealing ring. 7. The spray jet multifunctional nozzle according to claim 1, wherein the guide jet flow channel (14) is an arc-shaped groove structure.

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