CN216857066U

CN216857066U - Long-range nozzle and spray gun

Info

Publication number: CN216857066U
Application number: CN202220369408.6U
Authority: CN
Inventors: 孟松
Original assignee: Xuzhou Fengshou Sprinkling Irrigation Equipment Co ltd
Current assignee: Xuzhou Fengshou Sprinkling Irrigation Equipment Co ltd
Priority date: 2022-02-23
Filing date: 2022-02-23
Publication date: 2022-07-01
Anticipated expiration: 2032-02-23

Abstract

The utility model relates to the technical field of spray guns, and discloses a long-range nozzle and a spray gun. Wherein the nozzle of far range includes base and nozzle body, the base is used for fixed setting on the body, be equipped with the hemisphere groove on the base, a tip of nozzle body is the location ball, be equipped with the direction arch on the inner wall in hemisphere groove and the outer wall of location ball one of the two, be equipped with the guide way on another one of the two, be equipped with the guide vane that two at least intervals set up in the location ball, guide vane or direction arch on every guide vane all squints the location ball, every guide vane all extends along the central axis direction of nozzle body. The long-range nozzle disclosed by the utility model has the advantages that on the premise of ensuring that the injection angle is adjustable, the at least two additional guide vanes play a role in stabilizing the water in the positioning ball, so that the transverse circulation of the water in the nozzle body is blocked, the secondary flow of the water is reduced, the water sprayed out of the nozzle body is as stable and straight as possible, and the range of a water column is increased.

Description

Long-range nozzle and spray gun

Technical Field

The utility model relates to the technical field of spray guns, in particular to a long-range nozzle and a spray gun.

Background

When the existing nozzle with the adjustable angle is applied to a spray gun, when the spray angle of the nozzle is in the maximum state and the minimum state, water flowing through the nozzle can rotate under the influence of the structure of the nozzle, and finally water columns sprayed out of the nozzle are dispersed and have relatively short range.

SUMMERY OF THE UTILITY MODEL

Based on the above, the utility model aims to provide a nozzle and a spray gun with a long range, which solve the problems that water columns sprayed in the nozzle are dispersed and the range is relatively short.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a long-range nozzle, which comprises a base and a nozzle body, wherein the base is fixedly arranged on a tube body, the base is provided with a semispherical groove, one end part of the nozzle body is provided with a positioning ball which can be matched with the semispherical groove, one of the inner wall of the semispherical groove and the outer wall of the positioning ball is provided with a guide bulge, the other of the semispherical groove and the outer wall of the positioning ball is provided with a guide groove matched with the guide bulge, the positioning ball can rotate in the hemispherical groove along a preset direction relative to the base under the action of external force and can be positioned at any position when the external force is removed, the nozzle body is characterized in that at least two guide vanes are arranged in the positioning ball at intervals, each guide vane deviates from the guide groove or the guide protrusion on the positioning ball, and each guide vane extends along the direction of the central axis of the nozzle body.

As a preferred scheme of the long-range nozzle, a first flow channel is arranged on the base, a second flow channel communicated with the first flow channel is arranged in the nozzle body in a penetrating mode along the axial direction, a spray head is arranged at the other end portion of the nozzle body, the guide vanes are arranged in the second flow channel and protrude out of the positioning ball in the radial direction, and water sprayed out of the pipe body can sequentially pass through the first flow channel and the second flow channel and then is sprayed out of the spray head.

As the preferred scheme of the nozzle of a long range, the second runner is including the first loudspeaker runner and the second loudspeaker runner of intercommunication, first loudspeaker runner is located in the location ball, the second loudspeaker runner is located the location ball with in the shower nozzle, the main aspects diameter of first loudspeaker runner the main aspects diameter of second loudspeaker runner reaches the tip diameter of second loudspeaker runner reduces in proper order, be equipped with in the first loudspeaker runner guide vane, guide vane's one end with the internal face smooth connection of second loudspeaker runner, the other end extends to the entry of first loudspeaker runner.

As a preferred scheme of the long-range nozzle, a wall surface of the guide vane close to the central axis of the nozzle body is a guide inner wall surface, the guide inner wall surface is parallel to the central axis of the nozzle body, and distances from each guide inner wall surface to the central axis of the nozzle body are equal.

As a preferred scheme of the nozzle with the long range, the end face of the guide vane, which is positioned at the inlet of the first horn-shaped flow passage, is a guide end face, and the guide end face and the guide inner wall face are intersected into a straight line, or the guide end face and the guide inner wall are smoothly connected through a curved surface.

As a preferred scheme of the long-range nozzle, the long-range nozzle further comprises a fixing sleeve, the fixing sleeve is detachably fixed on the base, and the fixing sleeve can extrude the base to enable the positioning ball to be positioned in the hemispherical groove.

As the preferred scheme of the nozzle of a long range, state the direction arch and set up on the inner wall in hemisphere groove, the guide way sets up on the outer wall of location ball, be equipped with on the inner wall of second runner just right the deformation groove of guide way, guide vane with the deformation groove interval sets up, is located location ball with wall between the deformation groove can be in fixed cover extrusion orientation during the base the second runner internal deformation.

As the preferred scheme of the nozzle of a long range, it is upper and lower direction to predetermine the direction, the number of guide way is two, two the guide way is located respectively on the left side inner wall and the right side inner wall of location ball, every the guide way all with one the deformation groove corresponds the setting, at least two guide vane divide into two guide vane groups, every guide vane group all includes at least two equidistant setting guide vane, guide vane group with the deformation groove sets up in proper order at interval.

As a preferred scheme of the long-range nozzle, the two guide vane groups are integrally formed on the nozzle body, and the two guide vane groups are symmetrically arranged about a horizontal plane passing through the central axis of the nozzle body.

A spray gun comprises a tube body and the long-range nozzle in any scheme, wherein a base is fixedly arranged on the tube body.

The utility model has the beneficial effects that: according to the long-range nozzle disclosed by the utility model, on the premise of ensuring that the injection angle is adjustable, the at least two additional guide vanes arranged at intervals can play a role in stabilizing the water in the positioning ball, so that the transverse circulation of the water in the nozzle body is blocked, the secondary flow of the water is reduced, the water sprayed by the nozzle body is as stable and straight as possible, the water columns sprayed from the nozzle body are concentrated, and the range of the water columns is increased.

The spray gun disclosed by the utility model comprises the long-range nozzle, so that the spray gun has the characteristics of easiness in adjustment of the spray angle, more centralized water columns and longer range of the water columns.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.

FIG. 1 is a schematic illustration of a nozzle body and guide vanes for a long-range nozzle provided by an embodiment of the present invention;

FIG. 2 is a schematic, broken-away view of a wide-range nozzle provided by an embodiment of the utility model.

In the figure:

1. a base; 101. a hemispherical groove; 102. a first flow passage; 11. a guide projection; 12. a first internal thread; 13. a second external thread; 14. a first anti-slip projection;

2. a nozzle body; 201. a second flow passage; 2011. a first horn flow channel; 2012. a second horn flow channel; 21. a positioning ball; 2101. a guide groove; 21011. a first wall surface; 21012. a second wall surface; 21013. a third wall surface; 21014. a fourth wall surface; 2102. a deformation groove; 2103. an angle scale; 211. a guide vane; 21101. a flow guide inner wall surface; 21102. a flow guide end face; 22. a spray head;

3. fixing a sleeve; 31. a second internal thread; 32. a second anti-slip projection.

Detailed Description

In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The embodiment provides a nozzle for long range of spray gun, as shown in fig. 1 and 2, including base 1 and nozzle body 2, base 1 is used for fixed setting on the body, be equipped with hemisphere groove 101 on base 1, an tip of nozzle body 2 is for can with hemisphere groove 101 complex locating ball 21, be equipped with guide protrusion 11 on the inner wall of hemisphere groove 101, be equipped with on the outer wall of locating ball 21 with guide protrusion 11 complex guide groove 2101, locating ball 21 can rotate along the predetermined direction in hemisphere groove 101 under the effect of external force for base 1, can also fix a position in the optional position when removing external force, be equipped with six guide vanes 211 that the interval set up in the locating ball 21, guide groove 2101 on every guide vane 211 all deviates from the locating ball 21, every guide vane 211 all extends along the central axis direction of nozzle body 2. In other embodiments, the guide protrusions 11 may be disposed on the outer wall of the positioning ball 21, the guide grooves 2101 may be disposed on the inner wall of the hemispherical groove 101, the number of the guide vanes 211 is not limited to six in this embodiment, and other numbers may also be used, where each guide vane 211 is offset from the guide protrusion 11 on the positioning ball 21, and the guide protrusions 11 may be disposed specifically according to actual requirements.

The nozzle of far range that this embodiment provided, under the prerequisite that guarantees that injection angle is adjustable, the guide vane 211 that sets up of six intervals that add plays the effect of stationary flow to the water in the locating ball 21, has hindered the transverse circulation of the interior water of nozzle body 2, has subdued the secondary flow of water for nozzle body 2 spun water is steady straight as far as possible, makes finally from nozzle body 2 interior spun water column relatively concentrate, has increased the range of water column.

As shown in fig. 1 and 2, the base 1 is provided with a first flow channel 102 which penetrates through the base along the axial direction, a second flow channel 201 which is communicated with the first flow channel 102 penetrates through the nozzle body 2 along the axial direction, the other end of the nozzle body 2 is a spray head 22, a guide vane 211 protrudes in the second flow channel 201 along the radial direction of the positioning ball 21, and water sprayed from the pipe body can sequentially pass through the first flow channel 102 and the second flow channel 201 and then is sprayed out of the spray head 22. It should be noted that, as shown in fig. 1 and fig. 2, the nozzle 22 of the present embodiment is a conical nozzle, the cross-sectional area of the second flow passage 201 of the conical nozzle is gradually reduced along the direction of the water flow, and the conical nozzle is favorable for increasing the speed of the water flowing out through the second flow passage 201, so that the water flow sprayed by the conical nozzle is sprayed outward for a longer distance.

Specifically, as shown in fig. 1, the second flow channel 201 of this embodiment includes a first horn flow channel 2011 and a second horn flow channel 2012 which are communicated with each other, the first horn flow channel 2011 is disposed in the positioning ball 21, the second horn flow channel 2012 is disposed in the positioning ball 21 and the spray head 22, a diameter of a large end of the first horn flow channel 2011, a diameter of a large end of the second horn flow channel 2012 and a diameter of a small end of the second horn flow channel 2012 are sequentially reduced, a guide vane 211 is disposed in the first horn flow channel 2011, one end of the guide vane 211 is smoothly connected with an inner wall surface of the second horn flow channel 2012, and the other end of the guide vane 211 extends to an inlet of the first horn flow channel 2011.

Further, as shown in fig. 1, an end surface of the guide vane 211 at the inlet of the first trumpet runner 2011 in the present embodiment is a guide end surface 21102, a wall surface of the guide vane 211 close to the central axis of the nozzle body 2 is a guide inner wall surface 21101, the guide inner wall surface 21101 is parallel to the central axis of the nozzle body 2, and distances from each guide inner wall surface 21101 to the central axis of the nozzle body 2 are equal. The flow guide end surface 21102 and the flow guide inner wall surface 21101 of the present embodiment intersect in a straight line. In other embodiments, the flow guide end surface 21102 and the flow guide inner wall surface 21101 may also be smoothly connected by a curved surface, specifically, disposed according to actual needs. Because the axial contained angle of the wall of first loudspeaker runner 2011 and nozzle body 2 is greater than the axial contained angle of the wall of second loudspeaker runner 2012 and nozzle body 2, when water gets into second loudspeaker runner 2012 from first loudspeaker runner 2011, because water can strike on the internal wall of nozzle body 2, make water turn round, finally lead to the water column that gets into in second loudspeaker runner 2012 to take place to rotate, the guide vane 211 that adds makes the water column that gets into second loudspeaker runner 2012 through first loudspeaker runner 2011 flow along the straight line direction, the possibility that rivers take place to rotate in second loudspeaker runner 2012 has been reduced, make the water column that gets into in second loudspeaker runner 2012 more concentrated, finally make nozzle body 2 spun water column more concentrated and the range farther.

As shown in fig. 2, the long-range nozzle further comprises a fixing sleeve 3, the fixing sleeve 3 is detachably fixed on the base 1, and the fixing sleeve 3 can press against the base 1 to position the positioning ball 21 in the hemispherical groove 101. The long-range nozzle provided by the embodiment has a simple structure, the production cost is low, the operation is simple when the angle of the nozzle is adjusted, firstly, the nozzle body 2 is pushed under the action of external force to enable the positioning ball 21 to rotate in the hemispherical groove 101 until the angle is adjusted to a required angle, the external force is removed, the positioning ball 21 is preliminarily positioned in the hemispherical groove 101 under the action of friction force, at the moment, the positioning ball 21 is in contact with the inner wall of the hemispherical groove 101, the water in the first flow channel 102 can be reduced to flow out through a gap between the positioning ball 21 and the hemispherical groove 101, then, the fixing sleeve 3 is arranged on the base 1, the fixing sleeve 3 can extrude the base 1 to enable the positioning ball 21 to be clung to the hemispherical groove 101, so that the friction force between the positioning ball 21 and the hemispherical groove 101 is increased, the positioning ball 21 is ensured not to rotate relative to the hemispherical groove 101, the possibility that the water flows out through the gap between the positioning ball 21 and the hemispherical groove 101 is further reduced, so that the positioning ball 21 is in sealing connection with the hemispherical groove 101.

As shown in fig. 1, a deformation groove 2102 facing the guide groove 2101 is formed on an inner wall of the second flow channel 201 of the present embodiment, the guide vane 211 and the deformation groove 2102 are arranged at an interval, a wall surface between the positioning ball 21 and the deformation groove 2102 can be deformed toward the second flow channel 201 when the fixing sleeve 3 presses the base 1, and the additionally arranged deformation groove 2102 makes the wall surface where the guide groove 2101 is located easy to deform inward, so that the phenomenon that the guide protrusion 11 applies too much force to the guide groove 2101 to damage each other is avoided.

Specifically, as shown in fig. 1, the guide groove 2101 of the present embodiment includes a first wall surface 21011, a second wall surface 21012, a third wall surface 21013, and a fourth wall surface 21014, the first wall surface 21011 is perpendicular to an axis of the nozzle body 2 and is disposed at an interval from the guide projection 11, the second wall surface 21012 is perpendicular to the first wall surface 21011 and is parallel to the axis of the nozzle body 2, the second wall surface 21012 is attached to the guide projection 11 with a frictional force therebetween, the third wall surface 21013 and the fourth wall surface 21014 are respectively located on both sides of the first wall surface 21011, the third wall surface 21013 and the fourth wall surface 21014 are perpendicular to the second wall surface 21012, the third wall surface 21013 is located below the first wall surface 21011 and can be attached to the guide projection 11 to restrict downward rotation of the nozzle body 2, and the fourth wall surface 21014 is located above the first wall surface 21011 and can be attached to the guide projection 11 to restrict upward rotation of the nozzle body 2.

Further, as shown in fig. 1, in this embodiment, the first wall surface 21011 and the second wall surface 21012 are both vertical surfaces, the second wall surface 21012 is a sector-shaped annular surface, the third wall surface 21013 forms an angle of 66 ° with the second wall surface 21012, and the fourth wall surface 21014 forms an angle of 66 ° with the second wall surface 21012, that is, the nozzle body 2 can be rotated by 48 ° at most with respect to the base 1. When the nozzle body 2 rotates downward to a maximum angle relative to the base 1, the third wall 21013 is fitted with the guide projection 11, that is, the third wall 21013 plays a role in limiting the nozzle body 2 to rotate downward; when the nozzle body 2 is rotated upward to a maximum angle with respect to the base 1, the fourth wall surface 21014 is fitted to the guide projection 11, that is, the fourth wall surface 21014 functions to restrict the nozzle body 2 from continuing to rotate upward. In other embodiments, the included angles between the third wall 21013 and the fourth wall 21014 and the second wall 21012 are not limited to the definition of the embodiment, and may be set to other angle values according to actual requirements.

The predetermined direction of the present embodiment is an up-down direction, that is, the nozzle body 2 can rotate upward or downward relative to the base 1 along a vertical direction, so that an included angle between the water flow sprayed from the nozzle body 2 and a horizontal plane is changed. The number of the guide way 2101 of this embodiment is two, two guide ways 2101 are located positioning ball 21's left side inner wall and right side inner wall respectively, every guide way 2101 all corresponds the setting with a deformation groove 2102, six guide vane 211 divide into two guide vane groups, every guide vane group all includes the guide vane 211 that three equidistant set up, guide vane group and deformation groove 2102 interval set up in proper order, all form the guiding gutter between two adjacent guide vane 211 of every guide vane group, the guiding gutter not only plays the effect of water conservancy diversion, the pressure of water has still been increased, the water pressure of 2 water sprays of nozzle body has further been promoted, the range of water column has been increased.

It should be noted that, two guide vane sets of this embodiment are all integrated into one piece on nozzle body 2 for guide vane 211 and nozzle body 2 are easily fashioned, and six guide vane 211 homogeneous bodies of this embodiment are on nozzle body 2 promptly, and nozzle body 2 and six guide vane 211 are the current stabilizer through the integrated into one piece that moulds plastics, and two guide vane sets are about the horizontal plane symmetry setting through the central axis of nozzle body 2, have guaranteed that the water column that flows from nozzle body 2 is comparatively concentrated.

In order to facilitate the examination of the size of the included angle formed by the nozzle body 2 and the horizontal plane, as shown in fig. 2, an angle scale 2103 is disposed on the outer wall of the positioning ball 21, and the angle value represented by the intersection point of the base 1 and the angle scale 2103 is the included angle value between the nozzle body 2 and the horizontal plane. Specifically, the range of the angle scale 2103 of the present embodiment is 48 °, that is, the angle between the nozzle body 2 and the horizontal plane may be any degree from 0 ° to 48 °. In other embodiments, the maximum included angle between the nozzle body 2 of the long-range nozzle of the present invention and the horizontal plane is not limited to 48 ° in this embodiment, and may be other angles, and is specifically set according to actual needs.

As shown in fig. 2, the base 1 of the present embodiment is provided with a first internal thread 12 matching with the first external thread on the tube, the base 1 can be screwed on the tube, the base 1 is further provided with a second external thread 13, the fixing sleeve 3 is provided with a second internal thread 31 matching with the second external thread 13, and the fixing sleeve 3 can be screwed on the base 1. In order to facilitate screwing the base 1 on the tube, the base 1 of the present embodiment is provided with a plurality of first anti-slip protrusions 14 arranged at intervals along the axial extension of the base 1, and in order to facilitate screwing the fixing sleeve 3 on the base 1, the fixing sleeve 3 is provided with a plurality of second anti-slip protrusions 32 arranged at intervals along the axial extension of the fixing sleeve 3.

The embodiment also provides a spray gun, which comprises a pipe body (not shown in the figure) and a long-range nozzle of the technical scheme, wherein the base 1 is fixedly arranged on the pipe body. The spray gun provided by the embodiment comprises the long-range nozzle, so that the spray gun has the characteristics of easiness in adjustment of a spray angle, more concentrated water column and long range.

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. The long-range nozzle is characterized by comprising a base (1) and a nozzle body (2), wherein the base (1) is fixedly arranged on a pipe body, a semispherical groove (101) is formed in the base (1), one end of the nozzle body (2) is a positioning ball (21) capable of being matched with the semispherical groove (101), a guide protrusion (11) is arranged on one of the inner wall of the semispherical groove (101) and the outer wall of the positioning ball (21), a guide groove (2101) matched with the guide protrusion (11) is formed in the other one of the inner wall of the semispherical groove (101) and the outer wall of the positioning ball (21), the positioning ball (21) can rotate in the semispherical groove (101) along a preset direction relative to the base (1) under the action of external force and can also be positioned at any position when the external force is removed, at least two guide vanes (211) arranged at intervals are arranged in the positioning ball (21), each guide vane (211) is deviated from the guide groove (2101) or the guide protrusion (11) on the positioning ball (21), and each guide vane (211) extends along the central axis direction of the nozzle body (2).

2. The long-range nozzle according to claim 1, characterized in that a first flow passage (102) is provided on the base (1), a second flow passage (201) communicated with the first flow passage (102) axially penetrates the nozzle body (2), the other end of the nozzle body (2) is a nozzle (22), the guide vane (211) protrudes in the second flow passage (201) along the radial direction of the positioning ball (21), and water ejected from the nozzle body can sequentially pass through the first flow passage (102) and the second flow passage (201) and then be ejected from the nozzle (22).

3. The nozzle with the long range according to claim 2, wherein the second flow channel (201) comprises a first horn flow channel (2011) and a second horn flow channel (2012) which are communicated with each other, the first horn flow channel (2011) is disposed in the positioning ball (21), the second horn flow channel (2012) is disposed in the positioning ball (21) and the nozzle (22), the diameter of the large end of the first horn flow channel (2011), the diameter of the large end of the second horn flow channel (2012) and the diameter of the small end of the second horn flow channel (2012) are sequentially reduced, the guide vane (211) is disposed in the first horn flow channel (2011), one end of the guide vane (211) is smoothly connected with the inner wall surface of the second horn flow channel (2012), and the other end of the guide vane extends to the inlet of the first horn flow channel (2011).

4. The long-range nozzle of claim 3, wherein a wall surface of the guide vane (211) near the central axis of the nozzle body (2) is a guide inner wall surface (21101), the guide inner wall surface (21101) is parallel to the central axis of the nozzle body (2), and a distance from each guide inner wall surface (21101) to the central axis of the nozzle body (2) is equal.

5. The long-range nozzle of claim 4, wherein an end surface of the guide vane (211) at the inlet of the first horn runner (2011) is a guide end surface (21102), the guide end surface (21102) and the guide inner wall surface (21101) meet in a straight line, or the guide end surface (21102) and the guide inner wall surface are smoothly connected by a curved surface.

6. The long-range nozzle of claim 2, further comprising a harness (3), said harness (3) being removably secured to said base (1), said harness (3) being capable of squeezing said base (1) to position said positioning ball (21) within said hemispherical groove (101).

7. The long-range nozzle of claim 6, wherein the guide projection (11) is disposed on an inner wall of the hemispherical groove (101), the guide groove (2101) is disposed on an outer wall of the positioning ball (21), a deformation groove (2102) facing the guide groove (2101) is disposed on an inner wall of the second flow channel (201), the guide blade (211) is spaced apart from the deformation groove (2102), and a wall surface between the positioning ball (21) and the deformation groove (2102) is deformable toward the inside of the second flow channel (201) when the fixing sleeve (3) presses the base (1).

8. The long-range nozzle of claim 7, wherein the predetermined direction is an up-down direction, the number of the guide grooves (2101) is two, the two guide grooves (2101) are respectively located on the left inner wall and the right inner wall of the positioning ball (21), each guide groove (2101) is arranged corresponding to one of the deformation grooves (2102), at least two guide vanes (211) are divided into two guide vane groups, each guide vane group comprises at least two guide vanes (211) arranged at equal intervals, and the guide vane groups and the deformation grooves (2102) are arranged at intervals in sequence.

9. The extended-range nozzle of claim 8, wherein both of the sets of guide vanes are integrally formed on the nozzle body (2), and the two sets of guide vanes are symmetrically disposed about a horizontal plane passing through a central axis of the nozzle body (2).

10. A spray gun comprising a barrel and a long-range nozzle as claimed in any one of claims 1 to 9, said base (1) being fixedly mounted on said barrel.