CN214487428U - Spray head with rotary sealing structure and spray gun - Google Patents

Abstract

The utility model discloses a take rotary seal structure's shower nozzle and spray gun, including casing, nozzle, rotatory barrel, connecting barrel and rotary seal structure, casing both ends opening and inside cavity, rotatory barrel can install with rotating in the casing, the nozzle set firmly in the front end of rotatory barrel, connecting barrel set firmly in the casing, the rear end of rotatory barrel stretches into in the first end of connecting barrel and pass through rotary seal structure with connecting the rotatory sealing connection of barrel, rotary seal structure includes a plurality of V-arrangement sealing washers that set gradually, connecting barrel's second end is used for with outside barrel intercommunication. The rotary sealing device can realize large-area and high-efficiency cleaning, and meanwhile, rotary sealing connection at a high-pressure part is realized through the rotary sealing structure, so that the connection reliability is improved.

Description

Spray head with rotary sealing structure and spray gun

Technical Field

The utility model relates to a spray gun technical field especially relates to a take rotary seal structure's shower nozzle and spray gun.

Background

The high-pressure water jet cleaning equipment uses a high-pressure generating device to pressurize water, the water reaches a nozzle through a certain pipeline, the water with high pressure and low flow rate is converted into jet with high pressure and high flow rate, and then the jet continuously acts on the surface to be cleaned with higher impact kinetic energy, so that dirt falls off, and the aim of cleaning is finally achieved.

At present, a nozzle applied to a high-pressure water jet cleaning apparatus mainly includes a housing and a nozzle fixedly disposed in the housing, one end of the nozzle is communicated with a barrel having a flow passage, and the other end of the nozzle forms a nozzle communicated with the outside.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a take rotary seal structure's shower nozzle and spray gun, it can realize that large tracts of land, high efficiency wash, simultaneously, realizes the rotary seal connection of high pressure position department through rotary seal structure to improve the connection reliability.

The purpose of the utility model is realized by adopting the following technical scheme:

the utility model provides a take rotary seal structure's shower nozzle, includes casing, nozzle, rotatory barrel, connecting barrel and rotary seal structure, casing both ends opening and inside cavity, rotatory barrel can install with rotating in the casing, the nozzle set firmly in the front end of rotatory barrel, connecting barrel set firmly in the casing, the rear end of rotatory barrel stretches into in the first end of connecting the barrel and pass through rotary seal structure with connecting the rotatory sealing connection of barrel, rotary seal structure includes a plurality of V-arrangement sealing washers that set gradually, the second end of connecting the barrel is used for with outside barrel intercommunication.

Furthermore, the rotary sealing structure further comprises a first positioning ring and a second positioning ring which are sleeved at the rear end of the rotary cylinder body, a plurality of V-shaped sealing rings are combined to form a sealing ring assembly, and the first positioning ring and the second positioning ring are respectively arranged at two ends of the sealing ring assembly to support the sealing ring assembly.

Furthermore, the nozzle with the rotary sealing structure further comprises a gland, the gland is arranged at the rear end of the rotary cylinder and is abutted against the first positioning ring so as to axially limit the first positioning ring, the end part of the connecting cylinder, which is far away from the gland, is provided with an annular positioning part, and the inner end of the annular positioning part is abutted against the second positioning ring so as to axially limit the second positioning ring.

Further, the gland comprises a first annular gland body and a second annular gland body connected with the first annular gland body, the outer diameter of the first annular gland body is larger than that of the second annular gland body, the inner diameter of the first annular gland body is smaller than that of the second annular gland body, the rotary cylinder body comprises a first rotary part, a second rotary part and a third rotary part which are sequentially connected, the outer diameters of the first rotary part and the third rotary part are smaller than that of the second rotary part, a first shoulder position is formed between the first rotary part and the second rotary part, a second shoulder position is formed between the third rotary part and the second rotary part, the first annular gland body is sleeved on the first rotary part, the first end of the first annular gland body is abutted against the first shoulder position, and the second end of the first annular gland body is abutted against the inner part of the casing body, the second annular gland body is arranged between the second rotating part and the connecting cylinder body, the second annular gland body is abutted against the first positioning ring, and the annular positioning part is abutted against the second shoulder.

Further, the outer wall of nozzle is configured with the external screw thread structure, the inner wall of rotatory barrel is configured with first internal thread structure, first internal thread structure with the external screw thread structure adaptation.

Further, a sealing tape is arranged between the external thread structure and the first internal thread structure.

Further, a second internal thread structure is arranged inside the second end of the connecting cylinder.

Further, still dispose drive mechanism in the casing, drive mechanism includes rotating electrical machines, driving gear and driven gear, the driving gear with rotating electrical machines's output shaft transmission is connected, driven gear with the driving gear meshing, rotatory barrel inlays to be located in driven gear's centre bore and with driven gear transmission is connected.

Further, the outer wall of the rotary cylinder body is provided with a first plane structure, the hole wall of a central hole of the driven gear is provided with a second plane structure, and the second plane structure is matched with the first plane structure.

A spray gun comprises the spray head with the rotary sealing structure and a gun barrel, wherein the gun barrel is communicated with the second end of the connecting cylinder.

Compared with the prior art, the beneficial effects of the utility model reside in that:

because the nozzle can rotate, in the rotating process of the nozzle, the sweeping area of the spray head in unit time can be increased, namely, the spraying impact surface is effectively enlarged, large-area operation can be realized, the cleaning efficiency is greatly improved, under the condition of energy consumption and labor force, the cost is greatly reduced, meanwhile, good rotary sealing connection between the rotary cylinder body and the connecting cylinder body can be realized by utilizing the V-shaped sealing ring, the connection reliability is improved, water leakage is effectively avoided, the sealing ring assembly can be supported by the configuration of the first positioning ring and the second positioning ring, meanwhile, the initial compression amount can be applied to the sealing ring assembly, the sealing ring assembly can be fully contacted with the outer wall surface of the rotary cylinder body and the inner wall surface of the connecting cylinder body, tight fit is realized, and reliable sealing connection between the rotary cylinder body and the connecting cylinder body is realized.

Drawings

Fig. 1 is a schematic structural view of a spray gun of the present invention;

FIG. 2 is a schematic view showing the internal structure of a spray head in the spray gun of FIG. 1, wherein a half casing is not shown for the convenience of understanding the internal structure of the spray head;

FIG. 3 is an exploded view of the spray head of the spray gun of FIG. 1;

FIG. 4 is a cross-sectional view of the spray head of the spray gun of FIG. 1;

FIG. 5 is a partial schematic view of the water-sand mixing nozzle of the sprinkler head shown in FIG. 4;

FIG. 6 is a partial schematic view of the sprinkler head of FIG. 4 at the water nozzle;

FIG. 7 is a schematic view of a water-sand mixing nozzle of the sprinkler head of FIG. 4 shown in a first view;

fig. 8 is a schematic structural view of a water-sand mixing nozzle in the spray head shown in fig. 4 at a second viewing angle.

In the figure: 1. a spray head; 11. a housing; 111. a left housing; 112. a right housing; 12. a water nozzle; 121. a first bell mouth; 122. a channel; 13. a sand mulling section; 131. a sand mixing chamber; 132. an abrasive inlet; 14. a water-sand mixing nozzle; 141. a spout; 142. a second bell mouth; 143. a third planar structure; 15. a transmission mechanism; 151. a rotating electric machine; 152. a drive shaft; 153. a first drive gear; 154. a second driving gear; 155. a first driven gear; 1551. connecting sleeves; 1552. a second planar structure; 156. a second driven gear; 16. rotating the cylinder; 161. a first planar structure; 17. connecting the cylinder body; 171. an annular positioning portion; 18. a rotary seal structure; 181. a first positioning ring; 182. a V-shaped seal ring; 183. a second positioning ring; 19. a gland; 191. a first annular gland body; 192. a second annular gland body; 110. a limiting component; 1101. a connecting portion; 1102. a limiting ring; 120. a first seal member; 130. a second seal member; 140. a third seal member; 2. a barrel.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

Referring to fig. 1, showing the utility model discloses a spray gun structure, this spray gun includes shower nozzle 1 and barrel 2, the one end and the shower nozzle 1 intercommunication of barrel 2, the other end of barrel 2 can communicate with outside high pressure generating device, and high pressure generating device is used for providing high pressure water.

Referring to fig. 2 to 4, there is shown a spray head 1 according to a preferred embodiment of the present invention, the spray head 1 is embodied as a spray head 1 with a rotary seal structure, the sand mixing device comprises a shell 11, a water nozzle 12 (namely a nozzle), a sand mixing component 13, a water-sand mixing nozzle 14 and a transmission mechanism 15, wherein two ends of the shell 11 are open and hollow, the water nozzle 12 and the water-sand mixing nozzle 14 can be respectively and rotatably installed at two ends of the shell 11, the sand mixing component 13 is fixedly arranged in the shell 11 and is positioned between the water nozzle 12 and the water-sand mixing nozzle 14, the sand mixing component 13 is provided with a sand mixing chamber 131 and an abrasive inlet 132 used for introducing abrasives and communicated with the sand mixing chamber 131, the sand mixing chamber 131 is communicated with the water nozzle 12 and the water-sand mixing nozzle 14, the transmission mechanism 15 is installed in the shell 11, and the transmission mechanism 15 is used for driving the water nozzle 12 and the water-sand mixing nozzle 14 to synchronously rotate in the same direction.

When in use, one end of the water nozzle 12 far away from the sand mixing component 13 is communicated with the barrel 2 which can be introduced with high-pressure water, the abrasive inlet 132 is communicated with the outlet of a sand blasting device which can provide abrasives, the high-pressure water is converted into high-pressure high-flow-rate water after passing through the water nozzle 12, the abrasives entering from the abrasive inlet 132 are fully mixed with the high-pressure high-flow-rate water in the sand mixing chamber 131, and finally, the high-pressure high-flow-rate water mixed with the abrasives is sprayed to the outside through the water-sand mixing nozzle 14, because the water-sand mixing nozzle 14 can rotate, the scanning area of the nozzle 1 in unit time is increased in the rotation process of the water-sand mixing nozzle 14, namely, the spraying striking surface is effectively enlarged, large-area operation can be realized, the cleaning efficiency is greatly improved, the cost is greatly reduced under the condition of same energy consumption and manpower, in addition, because the water nozzle 12 and the water-sand mixing nozzle 14 can synchronously rotate in the same direction, also, both double-linkage, make water nozzle 12 correspond with the polarity of water sand mixing nozzle 14 (also the directionality keeps unanimous), thereby make fluidic flow more smooth and easy, the resistance is little, the water kinetic energy is bigger, also effectively avoid leading to efflux kinetic energy loss because of water nozzle 12 is different with water sand mixing nozzle 14 directionality, thereby guarantee that the efflux from water sand mixing nozzle 14 spun is high velocity of flow high pressure jet, increase the efflux impact force, further improve cleaning efficiency, more importantly, the hydroenergy behind synchronous syntropy pivoted water nozzle 12 and water sand mixing nozzle 14 can form certain pulse effect in proper order, spun efflux impact force is bigger, cleaning efficiency is higher.

In the present embodiment, in order to facilitate installation of the internal structure, the housing 11 includes a left housing 111 and a right housing 112, and the left housing 111 and the right housing 112 are fastened by bolts.

Referring to fig. 6, the water nozzle 12 is provided with a flow passage including a first bell mouth 121 disposed at a front end of the water nozzle 12 and a passage 122 disposed at a rear end of the water nozzle 12, the first bell mouth 121 is opened toward the sand mixing part 13, an inner diameter of the passage 122 is larger than a minimum inner diameter of the first bell mouth 121 so that a flow rate of water passing through the water nozzle 12 is increased, and the first bell mouth 121 opened toward the sand mixing chamber 131 is provided so that water is uniformly and widely sprayed toward the sand mixing chamber 131 so that water can be sufficiently mixed with the abrasives. In the present embodiment, the front end of the flow passage of the water nozzle 12 is preferably configured in a rectangular structure so that the water passing through the water nozzle 12 forms a fan-shaped jet with a stronger impact force, and the abrasives and the water are sufficiently and uniformly mixed in the sand mulling chamber 131.

In a preferred embodiment, the transmission mechanism 15 includes a rotating electrical machine 151, a transmission shaft 152, a first driving gear 153 (i.e., a driving gear), a second driving gear 154, a first driven gear 155 (i.e., a driven gear), and a second driven gear 156, the rotating electrical machine 151 is fixed to the housing 11, the transmission shaft 152 is in transmission connection with an output shaft of the rotating electrical machine 151 through a coupling, the first driving gear 153 and the second driving gear 154 are both disposed on the transmission shaft 152 and are in transmission connection with the transmission shaft 152 through a key, wherein both ends of the transmission shaft 152 are disposed with shoulder positions, the first driving gear 153 and the second driving gear 154 are respectively limited in a first axial direction through the shoulder positions, meanwhile, both ends of the transmission shaft 152 are disposed with lock nuts, the first driving gear 153 and the second driving gear 154 are respectively limited in a second axial direction through the lock nuts, the second axial direction is opposite to the first axial direction, the first driven gear 155 is engaged with the first driving gear 153, the water nozzle 12 is in transmission fit with the central hole of the first driven gear 155, the second driven gear 156 is engaged with the second driving gear 154, and the water-sand mixing nozzle 14 is in transmission fit with the central hole of the second driven gear 156, so that the torques output by the first driven gear 155 and the second driven gear 156 respectively drive the water nozzle 12 and the water-sand mixing nozzle 14, and the water nozzle 12 and the water-sand mixing nozzle 14 synchronously rotate in the same direction.

Referring to fig. 3 and 4, a connection sleeve 1551 is formed at the front end of the first driven gear 155, the connection sleeve 1551 extends into the sand mixing component 13, and a first sealing element 120 is arranged between the outer wall of the connection sleeve 1551 and the inner wall of the sand mixing component 13, so that the connection sleeve 1551 and the sand mixing component 13 rotate relatively to realize the rotary connection of the water nozzle 12 and the sand mixing component 13, so as to ensure that the sand mixing chamber 131 is large enough, thereby facilitating the water with high pressure and high flow rate sprayed from the water nozzle 12 to be sufficiently mixed with the abrasive entering from the abrasive inlet 132 in the sand mixing chamber 131, further enabling the abrasive in the jet sprayed from the nozzle 1 to be uniformly distributed, further improving the cleaning efficiency, and the first sealing element 120 can ensure the sealing performance at the position 1101 between the connection sleeve 1551 and the sand mixing component 13, and avoiding water leakage.

With continued reference to fig. 2-4, as a preferred embodiment, the spray head 1 further comprises a rotary cylinder 16 and a connecting cylinder 17, the rotary cylinder 16 is in transmission connection with the central hole of the first driven gear 155, specifically, as shown in fig. 3, the outer wall of the rotary cylinder 16 is provided with a first planar structure 161, the central hole wall of the first driven gear 155 is provided with a second planar structure 1552, the second planar structure 1552 is matched with the first planar structure 161, so as to circumferentially limit the rotary cylinder 16 and prevent the rotary cylinder 16 from rotating relative to the first driven gear 155, the water nozzle 12 is fixedly arranged inside the front end of the rotary cylinder 16, specifically, as shown in fig. 3, the outer wall of the water nozzle 12 is provided with an external thread structure, the inner wall of the rotary cylinder 16 is provided with a first internal thread structure, the first internal thread structure is matched with the external thread structure, and a sealing tape is preferably arranged between the first internal thread structure and the external thread structure, in order to realize the sealing connection between water nozzle 12 and the rotatory barrel 16, avoid leaking, the rear end of rotatory barrel 16 stretches into the first end of connecting barrel 17 inside and rotate with connecting barrel 17 and be connected, the second end of connecting barrel 17 is used for communicating with outside barrel 2, so, realize quiet between pivoted water nozzle 12 and the outside barrel 2 through configuration rotatory barrel 16 and connecting barrel 17 and be connected, avoid barrel 2 to rotate, for the connection of making things convenient for barrel 2, the second end of connecting barrel 17 disposes the second internal thread structure, the external screw thread structure adaptation on this second internal thread structure and barrel 2.

In a preferred embodiment, a third seal 140 is disposed between the outer wall of the rotary cylinder 16 and the wall of the central hole of the first driven gear 155 to achieve a sealed connection between the rotary cylinder 16 and the first driven gear 155 and prevent water leakage.

Since the rotary cylinder 16 and the connection cylinder 17 are located at high-pressure and high-speed rotation positions, the connection portion 1101 between the two is prone to water leakage, and therefore, the sealing structure between the two is improved, as shown in fig. 4 and fig. 6, as a preferred embodiment, the first end of the connection cylinder 17 and the rear end of the rotary cylinder 16 are connected in a rotary sealing manner through the rotary sealing structure 18, the rotary sealing structure 18 includes a first positioning ring 181, a sealing ring assembly and a second positioning ring 183, the first positioning ring 181 and the second positioning ring 183 are respectively arranged at two ends of the sealing ring assembly to support the sealing ring assembly, the sealing ring assembly includes a plurality of V-shaped sealing rings 182, the V-shaped sealing rings 182 can realize good rotary sealing connection between the rotary cylinder 16 and the connection cylinder 17, effectively avoid water leakage, and the arrangement of the first positioning ring 181 and the second positioning ring 183 can support the sealing ring assembly, meanwhile, initial compression amount can be applied to the sealing ring assembly, so that the sealing ring assembly can be in full contact with the outer wall surface of the rotary cylinder 16 and the inner wall surface of the connecting cylinder 17, close fitting is achieved, and reliable sealing connection between the rotary cylinder 16 and the connecting cylinder 17 is achieved.

With continued reference to fig. 4 and 6, as a preferred embodiment, the spray head 1 further includes a pressing cover 19, the pressing cover 19 is disposed at the rear end of the rotary cylinder 16 and is abutted against the first positioning ring 181 to axially limit the first positioning ring 181, the end of the connecting cylinder 17 away from the pressing cover 19 is disposed with an annular positioning portion 171, the inner end of the annular positioning portion 171 is abutted against the second positioning ring 183 to axially limit the second positioning ring 183, reliable axial limit is implemented on the rotary seal structure 18 by the pressing cover 19 and the annular positioning portion 171, and the sealing performance of the rotary seal structure 18 can be further improved.

Referring to fig. 6 in detail, the pressing cover 19 includes a first annular pressing cover body 191 and a second annular pressing cover body 192 connected to the first annular pressing cover body 191, an outer diameter of the first annular pressing cover body 191 is larger than an outer diameter of the second annular pressing cover body 192, an inner diameter of the first annular pressing cover body 191 is smaller than an inner diameter of the second annular pressing cover body 192, the rotary cylinder 16 includes a first rotary portion, a second rotary portion and a third rotary portion connected in sequence, outer diameters of the first rotary portion and the third rotary portion are smaller than an outer diameter of the second rotary portion, a first shoulder position is formed between the first rotary portion and the second rotary portion, a second shoulder position is formed between the third rotary portion and the second rotary portion, the first annular pressing cover body 191 is sleeved on the first rotary portion, a first end of the first annular pressing cover body 191 abuts against the first shoulder position, a second end of the first annular pressing cover body 191 abuts against an inner portion of the housing 11, or, the second end of the first annular gland body 191 abuts against the first driven gear 155, the second annular gland body 192 is disposed between the second rotating portion and the connecting cylinder 17, the second annular gland body 192 abuts against the first positioning ring 181, and the annular positioning portion 171 abuts against the second shoulder position, so that the axial limiting of the rotating cylinder 16 is realized by using the gland 19 and the annular positioning portion 171, the axial movement of the rotating cylinder 16 is avoided, and the structural design is ingenious.

Referring to fig. 5, in order to further increase the scanning area, the water-sand mixing nozzle 14 is eccentrically arranged, that is, the central axis of the water-sand mixing nozzle 14 is offset from the rotational central axis thereof, and an offset distance exists between the central axis and the rotational central axis, which is beneficial to further increasing the cleaning area in unit time and further improving the cleaning efficiency.

The jet flow of the water-sand mixing nozzle 14 is set to be fan-shaped, that is, the cross-sectional shape of the nozzle 141 of the water-sand mixing nozzle 14 is rectangular, and the single-shot efficiency when the water-sand mixing nozzle 14 is fixedly disposed in the housing 11 (in the prior art) is set to be η₁Eta is then₁The single-shot efficiency when the water-sand mixing nozzle 14 is eccentrically disposed and rotatable is set to η₂Eta is then₂＝π(L/2+P)²Where L is the length of the nozzle port 141 of the water-sand mixing nozzle 14 shown in fig. 4, d is the width of the nozzle port 141 of the water-sand mixing nozzle 14 shown in fig. 4, P is the eccentricity (eccentric distance) between the central axis of the water-sand mixing nozzle 14 and the rotational central axis thereof, and the ratio of the single-shot efficiency is n, n ═ η ═₁/η₂< 1, that is, the single-shot efficiency of the head 1 when the water-sand mixing nozzle 14 is eccentrically disposed and can rotate is higher than the single-shot efficiency of the head 1 when the water-sand mixing nozzle 14 is stationary.

Of course, in other embodiments, the water sand mixing nozzle 14 may be disposed coaxially with the water nozzle 12, that is, the central axis of the water sand mixing nozzle 14 coincides with the central axis of the water nozzle 12, and large-area cleaning can be achieved as well.

The water-sand mixing nozzle 14 is in transmission connection with the central hole of the second driven gear 156, specifically, as shown in fig. 8, a third planar structure 143 is configured on the water-sand mixing nozzle 14, a fourth planar structure is configured on the hole wall of the central hole of the second driven gear 156, and the fourth planar structure is adapted to the third planar structure 143, so as to circumferentially rotate the water-sand mixing nozzle 14, and prevent the water-sand mixing nozzle 14 from rotating relative to the second driven gear 156.

Referring to fig. 7 and 8, in a preferred embodiment, the water-sand mixing nozzle 14 is provided with a flow passage penetrating both ends thereof, the flow passage includes a nozzle port 141 disposed at the front end of the water-sand mixing nozzle 14 and a second bell mouth 142 disposed at the rear end of the water-sand mixing nozzle 14, and the nozzle port 141 is preferably rectangular in cross-sectional shape so that the ejected jet flow is a fan-shaped jet flow having a high flow velocity and a large impact force, thereby achieving a higher cleaning efficiency and a better cleaning effect. It can be understood that, when the cross-sectional shapes of the front end of the flow channel of the water nozzle 12 and the front end of the flow channel of the water sand mixing nozzle 14 (i.e. the nozzle 141) are both rectangular, the front end of the flow channel of the water nozzle 12 and the front end of the flow channel of the water sand mixing nozzle 14 can be aligned with each other all the time by rotating the water nozzle 12 and the water sand mixing nozzle 14 synchronously in the same direction, so that the kinetic energy loss of the jet flow caused by the fact that the jet flow ejected from the water nozzle 12 is abutted against the rear end face of the water sand mixing nozzle 14 due to the misalignment of the two is avoided, and the jet flow impact force ejected from the water sand mixing nozzle 14 is improved.

Of course, in other embodiments, the cross-sectional shape of the nozzle 141 may also be a cylindrical shape or a trumpet shape with an outward opening, and the opening of the second trumpet port 142 faces the sand mulling part 13 to play a role of drainage, and meanwhile, the arrangement of the second trumpet port 142 is also beneficial to avoiding the kinetic energy loss of water, and is helpful to improving the cleaning efficiency.

In a preferred embodiment, the rear end of the water-sand mixing nozzle 14 extends into the sand mulling chamber 131, and a second sealing member 130 is disposed between the rear end of the water-sand mixing nozzle 14 and the sand mulling part 13, so as to achieve a sealing connection between the water-sand mixing nozzle 14 and the sand mulling part 13 and avoid water leakage.

It is understood that the first sealing member 120, the second sealing member 130 and the third sealing member 140 mentioned in the present embodiment may be sealing rings or sealing tapes, and preferably sealing rings.

Referring to fig. 5, as a preferred embodiment, the sprinkler head 1 further includes a limiting member 110, the limiting member 110 includes a connecting portion 1101 in a cylindrical shape and a limiting ring 1102 disposed at an end of the connecting portion 1101, a limiting portion is disposed at a rear end of the water-sand mixing nozzle 14, the limiting member 110 is sleeved at the rear end of the water-sand mixing nozzle 14, the limiting ring 1102 abuts against the limiting portion, the connecting portion 1101 is embedded at a front end of the sand mulling member 13, or the connecting portion 1101 is sleeved at a front end of the sand mulling member 13, and two ends of the connecting portion 1101 respectively abut against the second driven gear 156 and the sand mulling member 13, so as to axially limit the water-sand mixing nozzle 14 and prevent the water-sand mixing nozzle 14 from axially moving.

It can be understood that, the utility model discloses a take rotary seal structure's shower nozzle 1 in addition can be applicable to above-mentioned structure, this take rotary seal structure's shower nozzle 1 can also be applicable to in the middle of the single nozzle revolution mechanic.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims (10)

1. The utility model provides a take rotary seal structure's shower nozzle, its characterized in that, includes casing, nozzle, rotatory barrel, connecting barrel and rotary seal structure, casing both ends opening and inside cavity, rotatory barrel can install with rotating in the casing, the nozzle set firmly in the front end of rotatory barrel, connecting barrel set firmly in the casing, the rear end of rotatory barrel stretches into in the first end of connecting barrel and pass through rotary seal structure with connecting the rotatory sealing connection of barrel, rotary seal structure includes a plurality of V-arrangement sealing washers that set gradually, the second end of connecting the barrel is used for with outside barrel intercommunication.

2. The nozzle with the rotary sealing structure according to claim 1, wherein the rotary sealing structure further comprises a first positioning ring and a second positioning ring sleeved at the rear end of the rotary cylinder, the V-shaped sealing rings are combined to form a sealing ring assembly, and the first positioning ring and the second positioning ring are respectively disposed at two ends of the sealing ring assembly to support the sealing ring assembly.

3. The spray head with the rotary sealing structure according to claim 2, further comprising a gland disposed at a rear end of the rotary cylinder and abutting against the first positioning ring to axially limit the first positioning ring, wherein an end of the connecting cylinder away from the gland is disposed with an annular positioning portion, an inner end of the annular positioning portion abuts against the second positioning ring to axially limit the second positioning ring.

4. The nozzle of claim 3, wherein the cover comprises a first annular gland body and a second annular gland body connected to the first annular gland body, the first annular gland body has an outer diameter larger than an outer diameter of the second annular gland body, the first annular gland body has an inner diameter smaller than an inner diameter of the second annular gland body, the spin basket comprises a first spin portion, a second spin portion, and a third spin portion connected in sequence, the first spin portion and the third spin portion each have an outer diameter smaller than an outer diameter of the second spin portion, a first shoulder is formed between the first spin portion and the second spin portion, a second shoulder is formed between the third spin portion and the second spin portion, the first annular gland body is sleeved on the first spin portion, and a first end of the first annular gland body abuts against the first shoulder, the second end of the first annular gland body is abutted with the inner part of the shell, the second annular gland body is arranged between the second rotating part and the connecting cylinder body, the second annular gland body is abutted with the first positioning ring, and the annular positioning part is abutted with the second shoulder.

5. A nozzle with rotary seal structure according to claim 1, wherein the outer wall of said nozzle is provided with an external thread structure, and the inner wall of said rotary cylinder is provided with a first internal thread structure, said first internal thread structure being adapted to said external thread structure.

6. The spray head of claim 5, wherein a sealing tape is disposed between the external thread structure and the first internal thread structure.

7. A sprayhead with a rotary seal arrangement according to claim 1 wherein the second end of the connecting cylinder is internally provided with a second internal thread arrangement.

8. The nozzle with the rotary sealing structure as claimed in claim 1, wherein a transmission mechanism is further disposed in the housing, the transmission mechanism includes a rotary motor, a driving gear and a driven gear, the driving gear is in transmission connection with an output shaft of the rotary motor, the driven gear is engaged with the driving gear, and the rotary cylinder is embedded in a central hole of the driven gear and in transmission connection with the driven gear.

9. The spray head with rotary seal structure of claim 8, wherein the outer wall of said rotary cylinder is configured with a first planar structure, the wall of the central hole of said driven gear is configured with a second planar structure, and said second planar structure is matched with said first planar structure.

10. A spray gun comprising a spray head with a rotary seal structure according to any one of claims 1 to 9 and a barrel in communication with the second end of the connecting cylinder.

Images