CN219463731U - Universal shower nozzle with arc hole - Google Patents

Abstract

The utility model discloses a universal nozzle with an arc hole, which comprises a water inlet base, a spray cylinder and a connecting sleeve, wherein the spray cylinder is arranged on the water inlet base; a water inlet channel is arranged in the water inlet base in a penetrating way, and a connecting channel is arranged in the connecting sleeve in a penetrating way; one end of the injection column body is provided with a diversion hole, the other end of the injection column body is provided with an arc-shaped groove water spray hole, and the arc-shaped groove water spray hole extends in the injection column body and is communicated with the diversion hole; the connecting sleeve is internally provided with a first ball head accommodating cavity in the connecting cavity channel, the water inlet base is internally provided with a second ball head accommodating cavity in the water inlet cavity channel, and the first ball head accommodating cavity and the second ball head accommodating cavity enclose a rotary cavity; the injection cylinder is provided with a universal ball head at one end of the diversion hole, and the universal ball head is accommodated in the rotary cavity and can rotate in the rotary cavity. The utility model avoids the bifurcation of the water column sprayed by the spray head, improves the flushing effect of the wound cutting chips on the lathe, and can flexibly and conveniently adjust the flushing angle.

Description

Universal shower nozzle with arc hole

Technical Field

The utility model relates to the technical field of spray heads, in particular to a universal spray head with arc-shaped holes, which is used for flushing a numerical control cutter and processing parts in machine tool processing.

Background

The lathe often encounters the condition of chip winding during turning, and chip winding can influence lathe tool life-span, also can influence product quality. The cutting fluid is pressurized by a high-pressure water pump arranged on a lathe, high-pressure flushing is performed by aligning a copper water pipe with the lathe tool, generated winding scraps during turning are flushed by utilizing the impact force of water, a spray head is arranged at the water spraying end of the copper water pipe, and a circular hole spray head is commonly used in the prior art.

When the existing circular Kong Pentou is used for spraying high-pressure water, the high-pressure water forms a force gathered towards the center of the circular hole after being acted by the inner wall of the hole in the circular hole, and meanwhile, a water column at the center of the circular hole also forms a corresponding counter force to achieve balance and flow forwards in the spray head.

Meanwhile, the existing spray head is fixed and cannot rotate after being installed on the copper water pipe, so that the flushing angle cannot be conveniently and rapidly adjusted.

Accordingly, the prior art is in need of improvement.

Disclosure of Invention

In view of the shortcomings of the prior art, the utility model aims to provide a universal spray head with an arc hole, which aims to prevent a water column sprayed by the spray head from being branched, improve the flushing effect of winding chips on a lathe and flexibly and conveniently adjust the flushing angle.

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

the universal nozzle with the arc-shaped holes comprises a water inlet base, a spray cylinder and a connecting sleeve;

a water inlet channel is axially arranged in the water inlet base in a penetrating way, and a connecting channel is axially arranged in the connecting sleeve in a penetrating way;

one end of the injection cylinder is provided with a diversion hole, the other end of the injection cylinder is provided with an arc-shaped groove water spray hole, and the arc-shaped groove water spray hole extends in the injection cylinder and is communicated with the diversion hole;

the connecting sleeve is detachably connected with the water inlet base, a first ball head accommodating cavity is formed in the connecting cavity channel of the connecting sleeve, a second ball head accommodating cavity is formed in the water inlet cavity channel of the water inlet base, and the first ball head accommodating cavity and the second ball head accommodating cavity enclose a rotary cavity;

the injection cylinder is provided with a universal ball head at one end of the diversion hole, and the universal ball head is accommodated in the rotary cavity and can rotate in the rotary cavity.

The injection column body comprises an injection rod and the universal ball head arranged at one end of the injection rod; the spray rod is axially provided with the arc-shaped groove water spray hole in a penetrating mode, and the universal ball head is provided with the guide hole in a penetrating mode.

Wherein the ratio of the length of the arc-shaped groove water spraying hole in the spraying rod to the groove width of the arc-shaped groove water spraying hole is more than 7.

Wherein the ratio of the arc length of the arc-shaped groove water spraying hole to the groove width of the arc-shaped groove water spraying hole is 10-16.

Wherein the central angle of the water spraying hole of the arc-shaped groove is 120-245 degrees.

The spray rod is provided with a plurality of arc-shaped groove water spray holes in a penetrating mode, and the arc-shaped groove water spray holes are distributed on the end face of the spray rod in a circumferential mode.

Wherein, a plurality of the arc-shaped groove water spray holes are distributed on the end face of the spray rod in a staggered way and are equally distributed on the end face of the spray rod;

one of the two ends of the arc-shaped groove water spraying hole is led out from the arc inner side area of the adjacent arc-shaped groove water spraying hole, and the other end of the arc-shaped groove water spraying hole extends outwards from the center to the edge area of the end face of the spraying rod.

The connecting sleeve is sleeved outside the water inlet base and is in threaded connection with the water inlet base;

the connecting sleeve is provided with a first ball head limiting cambered surface on the side wall of the first ball head accommodating cavity, the water inlet base is provided with a second ball head limiting cambered surface on the side wall of the second ball head accommodating cavity, one of opposite sides of the universal ball head is abutted to the first ball head limiting cambered surface, and the other side is abutted to the second ball head limiting cambered surface.

Wherein, the diversion holes are holes with gradually smaller inner diameters along the water flow direction.

It should be understood that within the scope of the present utility model, the above technical features of the present utility model and the technical features specifically described in the following (embodiment) may be combined with each other, so as to constitute a new or preferred technical solution, which is not described in detail herein.

According to the universal nozzle with the arc-shaped holes, the water inlet base, the spray cylinder and the connecting sleeve are arranged, the connecting sleeve is detachably connected with the water inlet base and is connected with the water inlet base to form the rotary cavity, the universal ball head is arranged on the spray cylinder and is contained in the rotary cavity and can rotate, so that the spray cylinder can rotate universally relative to the water inlet base and the connecting sleeve, meanwhile, the spray cylinder is provided with the arc-shaped groove water spraying holes and the diversion holes in a penetrating mode, and high-pressure water entering from the water inlet channel of the water inlet base enters the spray cylinder through the diversion hole end of the spray cylinder and is sprayed out from the other end of the spray cylinder after passing through the arc-shaped groove water spraying holes of the spray cylinder. Because the arc-shaped slot water spraying hole is similar to an arc-shaped gap, the arc-shaped slot water spraying hole does not have the center of a circular hole, so that the pressure of a water column in the arc-shaped slot water spraying hole is not easy to gather in a certain area, and the pressure in each area is relatively average, so that the phenomenon of splitting of the sprayed water column cannot occur, the spray water column can be concentrated in the flushing direction, the flushing effect on winding chips on a lathe is improved, and meanwhile, the flushing angle on the winding chips can be flexibly and conveniently adjusted due to the action of the universal ball head.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a universal nozzle with an arcuate hole according to the present utility model;

FIG. 2 is an exploded view of the structure of FIG. 1;

FIG. 3 is a schematic view of the water inlet base in FIG. 2;

FIG. 4 is a schematic view of the connecting sleeve in FIG. 2;

FIG. 5 is a schematic view of the structure of the connecting sleeve and the water inlet base after being connected;

FIG. 6 is a schematic diagram showing the distribution of the holes for spraying water in the arc-shaped grooves on the end face of the spraying cylinder;

fig. 7 is a schematic cross-sectional view of the spray cylinder of fig. 2.

Reference numerals illustrate:

100-spray heads, 10-water inlet bases, 11-water inlet channels, 111-second ball head accommodating cavities, 112-second ball head limiting cambered surfaces, 113-second connecting threads, 114-high-pressure pipe connecting threads, 20-spray cylinders, 21-universal ball heads, 211-guide holes, 22-spray rods, 221-arc-shaped groove water spraying holes, 221 (a) -first arc-shaped groove water spraying holes, 221 (b) -second arc-shaped groove water spraying holes, 221 (c) -third arc-shaped groove water spraying holes, 30-connecting sleeves, 31-connecting cavities, 311-first ball head accommodating cavities, 312-first ball head limiting cambered surfaces, 313-first connecting threads and 40-rotating cavities.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

In the present utility model, unless explicitly specified and limited otherwise, the terms "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be either a fixed connection or a removable connection or integrated; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.

Referring to fig. 1 to 6, the present utility model provides a universal nozzle 100 with an arc hole, which includes a water inlet base 10, a spray column 20 and a connecting sleeve 30. The water inlet base 10 is used for introducing a high-pressure water source, the spraying cylinder 20 is used for spraying high-pressure water, and the connecting sleeve 30 connects the water inlet base 10 and the spraying cylinder 20 together.

Specifically, as shown in fig. 3, the water inlet channel 11 is axially perforated in the water inlet base 10, and the water inlet channel 11 makes an external high-pressure water source flow in from the right end of the water inlet base 10 and flow out from the left end. Preferably, the right end of the water inlet base 10 is provided with a high pressure pipe connecting screw 114, and the high pressure pipe connecting screw 114 is in threaded connection with a high pressure water pipe such as a copper pipe on a lathe.

As shown in fig. 4, a connecting cavity 31 is axially perforated in the connecting sleeve 30, and the connecting cavity 31 is used for accommodating a part of the water inlet base 10 and a part of the injection cylinder 20 to realize connection.

As shown in fig. 2, one end of the injection cylinder 20 is provided with a diversion hole 211, the other end of the injection cylinder 20 is provided with an arc-shaped groove water spray hole 221, and the arc-shaped groove water spray hole 221 extends in the injection cylinder 20 and is communicated with the diversion hole 211. In this embodiment, the water flow enters from the diversion hole 211 of the spray cylinder 20, and is then pressurized by the arc-shaped slot water spraying hole 221 and then sprayed out from the other end of the spray cylinder 20.

In the present utility model, as shown in fig. 3 to 5, the connecting sleeve 30 is detachably connected to the water inlet base 10, a first ball accommodating cavity 311 is formed in the connecting cavity 31, a second ball accommodating cavity 111 is formed in the water inlet base 10 in the water inlet cavity 11, and the first ball accommodating cavity 311 and the second ball accommodating cavity 111 enclose a rotating cavity 40. As shown in fig. 1 and 2, the injection column 20 is provided with a universal ball head 21 at one end of the guide hole 211, and the universal ball head 21 is accommodated in the rotary cavity 40 and can rotate in the rotary cavity 40, so that the whole injection column 20 can rotate at multiple angles relative to the connecting sleeve 30 and the water inlet base 10, and the angle of the arc-shaped slot water spray hole 221 on the injection column 20 is adjusted, so as to adjust the flushing angle of the wound chip on the lathe, and the universal ball head 21, the first ball head accommodating cavity 311 and the second ball head accommodating cavity 111 are combined to form a joint bearing, thereby flexibly and conveniently adjusting the rotation angle of the injection column 20 and realizing convenient and quick adjustment of the flushing angle.

As shown in fig. 2, the installation process of the spray head 100 of the present utility model is that the right side of the universal ball 21 of the spray cylinder 20 is placed into the second ball receiving cavity 111 on the left side of the water inlet base 10, the connecting sleeve 30 is penetrated from the left end of the spray cylinder 20 such that the connecting sleeve 30 is located outside the universal ball 21 of the spray cylinder 20, and the left side of the universal ball 21 is placed into the first ball receiving cavity 311 of the connecting sleeve 30, and then the right end of the connecting sleeve 30 is connected with the left end of the water inlet base 10 to obtain the assembled structure shown in fig. 1, wherein the flow guiding hole 211 of the spray cylinder 20 is communicated with the water cavity 11 of the water inlet base 10. The high-pressure water source enters from the right end of the water inlet base 10, enters the diversion hole 211 at the right end of the injection cylinder 20 through the water inlet channel 11 of the water inlet base 10, and then is sprayed out from the left end of the injection cylinder 20 after passing through the arc-shaped groove water spraying hole 221 in the injection cylinder 20.

As shown in fig. 6, the arc-shaped slot water spraying hole 221 is a hollow slot with a circular arc shape on the end surface of the spraying cylinder 20, the circular arc-shaped slot has no center of a circular hole, and high-pressure water flowing into the arc-shaped slot water spraying hole 221 in the spraying cylinder 20 is not easy to gather in a certain area, but is relatively uniformly distributed in the whole section of the circular arc slot area, so that the phenomenon of splitting of the sprayed water column does not occur. Thus, the water sprayed from the arc-shaped groove water spraying holes 221 can be concentrated into a section of line without being split, and the impact force of high-pressure water can be kept, so that the flushing effect on the wound chips on the lathe can be improved. Meanwhile, the drill bit is easy to break in machining of the circular small holes on the spray head, the machining cost is higher as the holes are smaller, the circular holes are changed into arc-shaped groove water spraying holes 221, the arc-shaped groove water spraying holes 221 are narrow curve grooves, and the machining cost is reduced by adopting linear cutting machining.

Specifically, as shown in fig. 7, the injection cylinder 20 of the present utility model includes an injection rod 22 and the universal ball head 21 disposed at one end of the injection rod 22, the injection rod 22 is axially perforated with the arc-shaped slot water spraying hole 221, and the universal ball head 21 is perforated with the diversion hole 211. Since the arc-shaped slot water spray hole 221 is formed to penetrate the solid spray bar 22, the arc-shaped slot water spray hole 221 has a length, and the proper length in combination with the proper slot width can improve the impact force and concentration of water spray.

In the present utility model, the ratio of the length of the arc-shaped slot water spray hole 221 in the spray bar 22 to the slot width of the arc-shaped slot water spray hole 221 is an aspect ratio, as shown in fig. 7, the length of the arc-shaped slot water spray hole 221 in the spray bar 22 is L, and the slot width of the arc-shaped slot water spray hole 221 is d, the aspect ratio e=l/d.

Preferably, the ratio of the length of the arc-shaped slot spraying hole 221 in the spraying bar 22 to the slot width of the arc-shaped slot spraying hole is greater than 7. That is, when the aspect ratio of the present embodiment is more than 7, the impact force of water sprayed from the arc-shaped slot water spraying holes 221 of the spray cylinder 20 is large, the concentration is high, the split is avoided, and the flushing effect on the chips wound on the lathe is good.

Compared with the circular holes in the prior art, the circular holes with the same area are replaced with the circular holes with the same specific length, so that the length-width ratio E can be obviously enlarged, and the impact force and concentration of water spraying are effectively improved.

Assuming an L length of 13.74mm and a circular orifice diameter of 2.6mm in the prior art, the aspect ratio e=13.74/2.6=5.28 of the circular outlet orifice jet,

the area of the circular hole is 5.3mm2, and the product of the circular shape Kong Dengmian is converted into an arc-shaped hole with the width of 0.5mm, so that the aspect ratio E=13.74/0.5=27.4 and 27.4/5.28=5.2 of the arc-shaped water outlet hole. Namely, under the condition that the area of the water outlet hole is unchanged, the length-width ratio of the arc-shaped groove water spraying hole is enlarged by 5.2 times compared with that of a circular hole in the prior art, so that the impact force and the concentration of water columns can be greatly improved.

Preferably, the arc length of the arc-shaped slot water spraying hole 221 and the slot width ratio of the arc-shaped slot water spraying hole 221 are 10 to 16, so that the chip washing effect of the water sprayed from the arc-shaped slot water spraying hole 221 on the chip wound on the lathe can be further improved.

Preferably, the central angle of the water spraying hole 221 of the arc-shaped groove of the present utility model is 120-245 degrees. The central angle is the arc length of the arc-shaped slot water spraying hole 221, when the round hole with equal area is replaced by the arc-shaped hole of the utility model, the length of the arc influences the width of the arc-shaped slot water spraying hole 221, and further influences the length-width ratio E, and the utility model selects the central angle of the arc-shaped slot water spraying hole 221 to be in the range of 120-245 degrees, and has the proper length-width ratio E.

The spray rod 22 of the present utility model is provided with a plurality of the arc-shaped slot water spray holes 221 in a penetrating manner, and the plurality of the arc-shaped slot water spray holes 221 are circumferentially distributed at the end surface of the spray rod 22. The plurality of arc-shaped slot water spray holes 221 include two, three or more arc-shaped slot water spray holes 221

Preferably, as shown in fig. 7, in the present embodiment, the spray rod 22 is perforated with three arc-shaped slot water spray holes 221, which are respectively a first arc-shaped slot water spray hole 221 (a), a second arc-shaped slot water spray hole 221 (b), and a third arc-shaped slot water spray hole 221 (c), and the three arc-shaped slot water spray holes 221 (a), 221 (b), and 221 (c) are circumferentially distributed on the end surface of the spray rod 22. The three arc-shaped groove water spray holes can increase the coverage area of the sprayed water column, so that the flushing effect is improved.

Because the impact force is large when the diameter of the circular hole of the spray head is small, but the Kong Xiaofu cover surface is also small, when the impact force is large and the cover surface is large, the spray head is made into a shower head type porous arrangement structure in the prior art, but the impact force is weakened due to the fact that the total area of water outlet is increased due to the fact that the number of holes is large, and the cover surface is sparsely influenced due to the fact that the number of holes is small. The utility model replaces the round Kong Dengmian product with Qu Xianhu grooves, and the three arc-shaped groove water spraying holes 221 are arranged, so that the large coverage can be realized, and the impact force is large.

The plurality of arc-shaped slot water spray holes 221 of the present utility model are alternately distributed on the end surface of the spray bar 22 and equally distributed on the end surface of the spray bar 22.

As an embodiment, as shown in fig. 7, three arc-shaped slot water spray holes 221 are staggered on the end surface of the spray bar 22, and are distributed at an included angle of 120 degrees or the like on the end surface of the spray bar 22; one of the two ends of the arc-shaped slot water spraying hole 221 is led out from the arc inner side area of the adjacent arc-shaped slot water spraying hole 221, and the other end is extended outwards from the center to the edge area of the end face of the spray rod 22. Specifically, as shown in fig. 7, the first end 2211 of the second arc-shaped slot water spray hole 221 (b) is led out from the arc inner side region of the first arc-shaped slot water spray hole 221 (a), and the second end 2211 of the second arc-shaped slot water spray hole 221 (b) extends to the edge region of the end face of the spray rod 22; the first end 2211 of the third arc-shaped slot water spraying hole 221 (c) is led out from the arc inner side area of the second arc-shaped slot water spraying hole 221 (b), and the second end 2211 of the third arc-shaped slot water spraying hole 221 (c) extends to the edge area of the end surface of the spray rod 22; the first end 2211 of the first arc-shaped slot water spray hole 221 (a) is led out from the arc inner side region of the third arc-shaped slot water spray hole 221 (c), and the second end 2211 of the first arc-shaped slot water spray hole 221 (a) extends to the edge region of the end surface of the spray rod 22. The three arc-shaped slot water spraying holes 221 are staggered, so that the coverage area of the arc-shaped slot water spraying holes 221 on the end face of the spraying rod 22 is increased, and the coverage area of the water column sprayed by the spray head 100 on the lathe is also increased. In this embodiment, three of the arc-shaped slot water spraying holes 221 (a), 221 (b), 221 (c) are circumferentially distributed at an angle of 120 ° on the end face of the spray rod 22, and do not intersect.

In other embodiments, the number, width, arc length, length of the arc-shaped slot water spray holes 221 and the like can be flexibly set according to design requirements, such as spray pressure and flow rate.

As a way, in this embodiment, the connecting sleeve 30 is sleeved outside the water inlet base 10 and is screwed with the water inlet base 10. As shown in fig. 3 and 4, the connection sleeve 30 is provided with a first connection screw 313 on the inner wall of the connection channel 31, the water inlet base 10 is provided with a second connection screw 113 on the outer wall of the water inlet base 10, and the right end of the water inlet base 10 is inserted into the connection channel 31 of the connection sleeve 30 while the second connection screw 113 of the outer wall of the water inlet base 10 is screw-connected with the first connection screw 313 of the inner wall of the connection sleeve 30. The threaded connection can adjust the tightness of the universal ball head 21 in the rotary cavity 40, and the threaded connection also has a sealing effect.

In the present utility model, the connecting sleeve 30 is provided with a first ball limiting cambered surface 312 on a side wall of the first ball accommodating cavity 311, the water inlet base 10 is provided with a second ball limiting cambered surface 112 on a side wall of the second ball accommodating cavity 111, one of opposite sides of the universal ball 21 is abutted with the first ball limiting cambered surface 312, and the other side is abutted with the second ball limiting cambered surface 112.

Specifically, as shown in fig. 1 and 5, a first ball limiting cambered surface 312 is disposed on the left side of the connecting sleeve 30, a second ball limiting cambered surface 112 is disposed on the left side of the water inlet base 10, when the universal ball 21 is installed in the rotating cavity 40, the right side of the universal ball 21 abuts against the second ball limiting cambered surface 112, and the left side of the universal ball 21 abuts against the first ball limiting cambered surface 112, so that the left-right direction of the universal ball 21 is limited, and the universal ball 21 is prevented from moving left and right to deviate from the connecting sleeve 30 or the water inlet base 10.

Preferably, the diversion holes 211 are holes with gradually smaller inner diameters along the water flow direction, so that the diversion holes 211 with variable diameters can raise the pressure of water column and increase the impact force.

According to the universal nozzle 100 with the arc-shaped holes, the water inlet base 10, the injection column body 20 and the connecting sleeve 30 are arranged, the connecting sleeve 30 is detachably connected with the water inlet base 10 and is connected with the water inlet base 10 to form the rotary cavity 40, the universal ball head 21 is arranged on the injection column body 20, the universal ball head 21 is contained in the rotary cavity 40 and can rotate, the injection column body 20 can universally rotate relative to the water inlet base 10 and the connecting sleeve 30, meanwhile, the injection column body 20 is provided with the arc-shaped groove water spraying holes 221 and the diversion holes 211 in a penetrating mode, and high-pressure water entering from the water inlet channel 11 of the water inlet base 10 enters the injection column body 20 through the diversion holes 211 of the injection column body 20 and is sprayed out from the other end of the injection column body 20 after passing through the arc-shaped groove water spraying holes 221 of the injection column body 20. The arc-shaped slot water spraying hole 221 is similar to an arc-shaped gap, does not have the center of a circular hole, does not generate a split phenomenon of a water column sprayed by the arc-shaped slot water spraying hole, can improve the flushing effect on wound chips on a lathe, and simultaneously, the universal nozzle 100 can flexibly and conveniently adjust the flushing angle on the wound chips on the lathe.

The foregoing is illustrative of the present utility model and is not to be construed as limiting the scope of the utility model, which is defined by the appended claims, rather, as the description of the utility model covers all embodiments of the utility model.

Claims (9)

1. The universal nozzle with the arc-shaped holes is characterized by comprising a water inlet base, a spray cylinder and a connecting sleeve;

a water inlet channel is axially arranged in the water inlet base in a penetrating way, and a connecting channel is axially arranged in the connecting sleeve in a penetrating way;

one end of the injection cylinder is provided with a diversion hole, the other end of the injection cylinder is provided with an arc-shaped groove water spray hole, and the arc-shaped groove water spray hole extends in the injection cylinder and is communicated with the diversion hole;

the connecting sleeve is detachably connected with the water inlet base, a first ball head accommodating cavity is formed in the connecting cavity channel of the connecting sleeve, a second ball head accommodating cavity is formed in the water inlet cavity channel of the water inlet base, and the first ball head accommodating cavity and the second ball head accommodating cavity enclose a rotary cavity;

the injection cylinder is provided with a universal ball head at one end of the diversion hole, and the universal ball head is accommodated in the rotary cavity and can rotate in the rotary cavity.

2. The universal nozzle with arc-shaped holes according to claim 1, wherein the spray cylinder comprises a spray rod and the universal ball head arranged at one end of the spray rod;

the spray rod is axially provided with the arc-shaped groove water spray hole in a penetrating mode, and the universal ball head is provided with the guide hole in a penetrating mode.

3. The universal nozzle with arcuate slot as claimed in claim 2, wherein the ratio of the length of said arcuate slot jet in said spray bar to the slot width of said arcuate slot jet is greater than 7.

4. The universal nozzle with an arc hole as claimed in claim 1, wherein the arc length of the arc slot water spraying hole and the slot width ratio of the arc slot water spraying hole are 10 to 16.

5. The universal nozzle with the arc-shaped hole according to claim 1, wherein the central angle of the arc-shaped groove water spraying hole is 120-245 degrees.

6. The universal nozzle with arc-shaped holes as claimed in claim 2, wherein the spray rod is perforated with a plurality of arc-shaped slot water spray holes, and the arc-shaped slot water spray holes are circumferentially distributed on the end surface of the spray rod.

7. The universal nozzle with arc-shaped holes according to claim 6, wherein a plurality of the arc-shaped slot water spray holes are distributed at the end face of the spray rod in a staggered manner and are equally distributed at the end face of the spray rod;

one of the two ends of the arc-shaped groove water spraying hole is led out from the arc inner side area of the adjacent arc-shaped groove water spraying hole, and the other end of the arc-shaped groove water spraying hole extends outwards from the center to the edge area of the end face of the spraying rod.

8. The universal nozzle with the arc-shaped holes according to claim 1, wherein the connecting sleeve is sleeved outside the water inlet base and is in threaded connection with the water inlet base;

the connecting sleeve is provided with a first ball head limiting cambered surface on the side wall of the first ball head accommodating cavity, the water inlet base is provided with a second ball head limiting cambered surface on the side wall of the second ball head accommodating cavity, one of opposite sides of the universal ball head is abutted to the first ball head limiting cambered surface, and the other side is abutted to the second ball head limiting cambered surface.

9. The universal nozzle with the arc-shaped holes as claimed in claim 1, wherein the diversion holes are holes with gradually smaller inner diameters along the water flow direction.