CN213435114U

CN213435114U - Ultrahigh-pressure water jet cleaning spray head

Info

Publication number: CN213435114U
Application number: CN202022152102.9U
Authority: CN
Inventors: 陈世伟; 李枝城
Original assignee: Lastin Technology Shenzhen Co ltd
Current assignee: Lastin Technology Shenzhen Co ltd
Priority date: 2020-09-27
Filing date: 2020-09-27
Publication date: 2021-06-15
Anticipated expiration: 2030-09-27

Abstract

The utility model relates to the technical field of cleaning equipment, and provides an ultrahigh pressure water jet cleaning spray head, which comprises a fixed seat with a first through hole, a shell with a cavity, a rotating shaft with a second through hole and a spray head with a deflection arranged spray hole; one end of the fixed seat is used for connecting the water inlet high-pressure pipe, and the other end of the fixed seat is connected with the shell; the rotating shaft is arranged in the cavity and is in clearance fit with the inner wall of the cavity, one end of the rotating shaft extends out of the shell and is connected with the injection head, the other end of the rotating shaft is in clearance fit with the inner wall of the first through hole, and the first through hole is communicated with the second through hole; a step is arranged in the cavity, a supporting part is arranged on the rotating shaft, the supporting part is matched with the step to limit and install the rotating shaft in the cavity and form a bounce cavity, a bounce hole is arranged on the rotating shaft, and the bounce hole is communicated with the second through hole and the bounce cavity; one side of the supporting part close to the step is provided with a centripetal taper groove for reducing the centrifugal force deflection generated by the rotating shaft when the rotating shaft rotates, improving the stability of axial rotation and prolonging the service life.

Description

Ultrahigh-pressure water jet cleaning spray head

Technical Field

The utility model relates to a cleaning equipment technical field especially relates to an ultrahigh pressure water jet washs shower nozzle.

Background

With the rapid development of modern industry, the usage amount of cooling water is increasing, during the heat exchange process of the cooling water, calcium and magnesium originally dissolved in the water are separated out from carbon dioxide under the action of temperature to generate calcium carbonate and magnesium carbonate which are slightly soluble in water, when the crystals are continuously deposited in the tube bundle of the heat exchanger, hard scale is formed, the cooling efficiency is affected, and the scale needs to be periodically cleaned to enable the equipment to normally operate. Traditional chemical cleaning can discharge a large amount of acidizing fluid, and the acidizing fluid can cause the corruption formation leak to equipment, and in addition, the washing waste liquid is poisonous, needs a large amount of funds to carry out waste water treatment, causes very big pollution to the environment. High-pressure water jet cleaning belongs to physical cleaning, and becomes a mainstream cleaning technology in industrially developed countries, while chemical cleaning is mainly used in China cleaning industry, and the high-pressure water jet cleaning only accounts for a very small part. Therefore, the high-pressure water jet cleaning gradually replaces the traditional chemical cleaning with the concept of environmental protection and high efficiency, but the high-pressure water cleaning spray head in the prior art has large leakage amount, so that the output efficiency of the high-pressure pump is low, the rotating shaft can generate centrifugal deflection when rotating, the rotating stability of the rotating shaft is poor, and the service life of the rotating shaft is short.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the problem that exists among the prior art, provide an superhigh pressure water jet washs shower nozzle for it is big to solve the high pressure water washing shower nozzle leakage volume that exists among the prior art, leads to the output efficiency of high-pressure pump low, and the rotation axis can produce centrifugal beat when rotating moreover, and rotation axis pivoted stationarity is poor, leads to the technical problem that its life is short.

The utility model discloses technical scheme as to above-mentioned technical problem and propose as follows:

an ultrahigh pressure water jet cleaning spray head comprises a fixed seat with a first through hole, a shell with a cavity, a rotating shaft with a second through hole and a spray head with a spray hole, wherein the spray hole is arranged in a deflection manner;

one end of the fixed seat is used for connecting a water inlet high-pressure pipe, and the other end of the fixed seat is connected with the shell;

the rotating shaft is arranged in the cavity and is in clearance fit with the inner wall of the cavity, one end of the rotating shaft extends out of the shell and is connected with the injection head, the other end of the rotating shaft is in clearance fit with the inner wall of the first through hole, and the first through hole is communicated with the second through hole;

a step is arranged in the cavity, a supporting part is arranged on the rotating shaft, the supporting part is matched with the step to limit and install the rotating shaft in the cavity and form a bounce cavity, a bounce hole is arranged on the rotating shaft, and the bounce hole is communicated with the second through hole and the bounce cavity;

one side of the supporting part, which is close to the step, is provided with a centripetal cone groove for reducing the centrifugal force deflection generated by the rotating shaft during rotation.

According to the ultrahigh-pressure water jet cleaning nozzle, the rotating shaft comprises a rotating shaft body, the supporting parts are arranged on the periphery of the rotating shaft body in a protruding mode, and the centripetal conical groove is formed by the outer surface of the rotating shaft body and the surface of the supporting parts close to one side of the step.

According to the ultrahigh-pressure water jet cleaning nozzle, the outer surface of the rotating shaft main body, the surface of the supporting part close to one side of the step and the inner surface of the cavity form the bounce cavity, the bounce hole is formed in the rotating shaft main body, and the bounce hole is communicated with the second through hole and the bounce cavity.

According to the ultrahigh pressure water jet cleaning nozzle, the outer wall of the supporting part and the inner wall of the cavity form a water drainage gap, the water drainage gap comprises a first water drainage gap and a second water drainage gap, the first water drainage gap is gradually enlarged in conical shape, the second water drainage gap is a straight cylinder, the first water drainage gap is communicated with the second water drainage gap, the first water drainage gap is communicated with the rebounding cavity, and the second water drainage gap is communicated with a water drainage hole formed in the shell.

According to the ultrahigh-pressure water jet cleaning nozzle, a first gap is formed between the outer wall of the rotating shaft main body and the inner wall of the cavity, a first lubricating ring formed by a groove is arranged on the part, located at the first gap, of the inner wall of the cavity in the circumferential direction of the inner wall of the cavity, the first lubricating ring is communicated with the first gap, and the first gap is communicated with the rebound cavity.

According to the ultrahigh-pressure water jet cleaning sprayer, a second gap is formed between the outer wall of the rotating shaft main body and the inner wall of the first through hole, a second lubricating ring formed by a groove is formed in the circumferential direction of the part, located at the second gap, of the inner wall of the first through hole, the second lubricating ring is communicated with the second gap, and the second gap is communicated with the drain hole.

According to the ultrahigh-pressure water jet cleaning nozzle, a positioning gap is formed between the outer wall of the fixing seat and the inner wall of the shell, and the positioning gap is used for ensuring the concentricity of the axis of the first gap and the axis of the second gap.

According to the aforesaid superhigh pressure water jet washs shower nozzle, the fixing base is close to one side of shell is equipped with directional outer cone, one side that the shell is close to the fixing base be equipped with directional inner cone of directional outer cone looks adaptation, the fixing base with the back is connected to the shell, directional outer cone with directional inner cone is mutually supported and the butt for ensure the axis in first clearance with the axis concentricity in second clearance.

According to the ultrahigh-pressure water jet cleaning sprayer, the outer wall of the fixing seat is provided with the first threaded portion, the inner wall of the shell is provided with the second threaded portion, and the first threaded portion is matched with the second threaded portion to connect the fixing seat to the shell.

According to the ultrahigh-pressure water jet cleaning spray head, a third thread part is arranged on one side, extending out of the shell, of the rotating shaft, and a fourth thread part is arranged on the spray head, and the third thread part and the fourth thread part are matched to connect the spray head to the rotating shaft.

According to above-mentioned scheme the utility model discloses, its beneficial effect lies in at least:

(1) the utility model provides an ultrahigh pressure water jet washs shower nozzle, its rotary power comes from the jet orifice that the beat set up, does not need additionally to increase power unit and realizes rotatoryly to the autogyration of washing shower nozzle has been realized.

(2) The rebound hole runs through the second through hole of the rotating shaft to the rebound cavity, the axial cross section of the rebound cavity is larger than the stress area of the high-pressure water acting on the axial direction of the rotating shaft from the upper part, the rebound hole only needs to be set to be very small, the rotating shaft can overcome the axial thrust of the water to be bounced and suspended, the leakage amount is controlled in a very small range, and the output efficiency of the high-pressure pump is greatly improved.

(3) Be equipped with centripetal taper groove in one side that the supporting part is close to the step, the high pressure water is at centripetal taper groove accumulation formation centripetal thrust for reduce the centrifugal force beat that the rotation axis produced when rotatory, make clearance fit's rotation axis and cavity inner wall, rotation axis and first through-hole inner wall more steady of operation when rotatory, improve the axial rotation's stability, and then reduced the wearing and tearing that produce when rotation axis and cavity inner wall, first through-hole inner wall clearance fit, increase of service life.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments 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 it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural view of an ultrahigh pressure water jet cleaning nozzle provided in an embodiment of the present invention;

fig. 2 is an exploded schematic view of an ultrahigh pressure water jet cleaning nozzle according to an embodiment of the present invention;

fig. 3 is a schematic sectional structure view (at rest) of an ultra-high pressure water jet cleaning nozzle according to an embodiment of the present invention;

FIG. 4 is an enlarged schematic view of portion A of FIG. 3;

fig. 5 is a schematic sectional structure view (in a suspended state) of the ultrahigh-pressure water jet cleaning nozzle according to the embodiment of the present invention.

Fig. 6 is an enlarged schematic view of a portion B in fig. 5.

Wherein, in the figures, the respective reference numerals:

Detailed Description

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly or indirectly secured to the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positions based on the orientations or positions shown in the drawings, and are for convenience of description only and not to be construed as limiting the technical solution. The terms "first", "second" and "first" are used merely for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "plurality" is two or more unless specifically limited otherwise.

In order to solve the high pressure water washing shower nozzle volume of revealing that exists among the prior art big, lead to the output efficiency low of high-pressure pump, the rotation axis can produce centrifugal beat when rotating moreover, and rotation axis pivoted stationarity is poor, leads to the technical problem that its life is short, the utility model aims at providing an ultrahigh pressure water jet washs shower nozzle. The core idea is as follows: the ultrahigh pressure water jet cleaning spray head comprises a fixed seat with a first through hole, a shell with a cavity, a rotating shaft with a second through hole and a spray head with a spray hole, wherein the spray hole is arranged in a deflection manner; one end of the fixed seat is used for connecting a water inlet high-pressure pipe, and the other end of the fixed seat is connected with the shell; the rotating shaft is arranged in the cavity and is in clearance fit with the inner wall of the cavity, one end of the rotating shaft extends out of the shell and is connected with the injection head, the other end of the rotating shaft is in clearance fit with the inner wall of the first through hole, and the first through hole is communicated with the second through hole; a step is arranged in the cavity, a supporting part is arranged on the rotating shaft, the supporting part is matched with the step to limit and install the rotating shaft in the cavity and form a bounce cavity, a bounce hole is arranged on the rotating shaft, and the bounce hole is communicated with the second through hole and the bounce cavity; one side of the supporting part, which is close to the step, is provided with a centripetal cone groove for reducing the centrifugal force deflection generated by the rotating shaft during rotation. The utility model provides an ultrahigh pressure water jet cleaning spray head, the rotary power of which comes from the jet hole arranged in the deflection, and no additional power mechanism is needed to realize the rotation, thereby realizing the self-rotation of the cleaning spray head; the rebound hole penetrates through the second through hole of the rotating shaft to the rebound cavity, the axial section of the rebound cavity is larger than the force-bearing area of the high-pressure water axially acting on the rotating shaft from the upper part, the rebound hole only needs to be set to be very small, the rotating shaft can be enough to overcome the axial thrust of the water to be bounced and suspended, the leakage amount is controlled in a very small range, and the output efficiency of the high-pressure pump is greatly improved; be equipped with centripetal taper groove in one side that the supporting part is close to the step, the high pressure water is at centripetal taper groove accumulation formation centripetal thrust for reduce the centrifugal force beat that the rotation axis produced when rotatory, make clearance fit's rotation axis and cavity inner wall, rotation axis and first through-hole inner wall more steady of operation when rotatory, improve the axial rotation's stability, and then reduced the wearing and tearing that produce when rotation axis and cavity inner wall, first through-hole inner wall clearance fit, increase of service life.

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Referring to fig. 1, the present embodiment provides an ultrahigh pressure water jet cleaning nozzle 100, referring to fig. 2, including a fixing base 10 having a first through hole 11, a housing 20 having a cavity 21, a rotating shaft 30 having a second through hole 31, and a nozzle head 40 having a nozzle hole 41, wherein the nozzle hole 41 is arranged in a deflection manner; optionally, the first through hole 11 is axially disposed in the fixing seat 10, and the second through hole 31 is axially disposed on the rotating shaft 30. One end of the fixed seat 10 is used for connecting a water inlet high-pressure pipe, and the other end of the fixed seat 10 is connected with the shell 20; the rotating shaft 30 is arranged in the cavity 21 and is in clearance fit with the inner wall of the cavity 21, one end of the rotating shaft extends out of the shell 20 and is connected with the injection head 40, the other end of the rotating shaft is in clearance fit with the inner wall of the first through hole 11, and the first through hole 11 is communicated with the second through hole 31; referring to fig. 3 in combination with fig. 4, a step 22 is disposed in the cavity 21, a support portion 32 is disposed on the rotating shaft 30, the support portion 32 cooperates with the step 22 to limit and mount the rotating shaft 30 in the cavity 21, and form a rebound cavity 23, a rebound hole 341 is disposed on the rotating shaft 30, and the rebound hole 341 is communicated with both the second through hole 31 and the rebound cavity 23; a centripetal cone groove 33 (the centripetal cone groove 33 is a tapered groove formed toward the axis) is formed at one side of the support portion 32 close to the step 22, so as to reduce the centrifugal force deflection generated when the rotating shaft 30 rotates. Optionally, the nozzle 40 is provided with a plurality of second through holes 31 penetrating through the injection holes 41 to the rotating shaft 30, wherein at least one group of injection holes 41 are symmetrically arranged in a swinging manner.

The working principle of the ultra-high pressure water jet cleaning nozzle 100 provided by the embodiment can be as follows:

high-pressure water flows into a first through hole 11 arranged on a fixed seat 10 through a water inlet high-pressure pipe, the first through hole 11 is communicated with a second through hole 31 arranged on a rotating shaft 30, then the high-pressure water flows through the second through hole 31, the rotating shaft 30 extends out of a shell 20 and is connected with an injection head 40, then the high-pressure water flows through the injection head 40, the rotating shaft 30 is in clearance fit with the inner wall of a cavity 21 and the first through hole 11, meanwhile, the high-pressure water flowing through the second through hole 31 flows into a bounce cavity 23 through a bounce hole 341, the axial section of the bounce cavity 23 is larger than the axial acting stress area of the high-pressure water on the rotating shaft 30, the bounce hole 341 only needs to be arranged to be small, the rotating shaft 40 can be bounced and suspended against the axial thrust of the water, the injection hole 41 is arranged in a deflection manner, the jet hole 41 arranged in, self-rotation of the rotation shaft 30 is achieved. The rotating shaft 30 is limited and installed in the cavity 21 through the matching of the step 22 and the supporting part 32, a centripetal cone groove 33 is formed in one side, close to the step 22, of the supporting part 32, and high-pressure water provides centripetal cone force to the centripetal cone groove 33, so that centrifugal force deflection generated when the rotating shaft 30 rotates is reduced, and stability of axial rotation is improved.

The ultrahigh-pressure water jet cleaning spray head 100 provided by the embodiment has the beneficial effects that:

(1) the ultrahigh pressure water jet cleaning nozzle 100 provided by this embodiment has the rotation power from the ejection hole 41 in the deflection arrangement, and does not need to add an additional power mechanism to rotate, thereby realizing the self-rotation of the cleaning nozzle.

(2) The rebound hole 341 penetrates through the second through hole 31 of the rotating shaft 30 to the rebound cavity 23, the axial section of the rebound cavity 23 is larger than the stress area of the high-pressure water acting on the rotating shaft 30 from the upper part in the axial direction, the rebound hole 341 is only required to be arranged very small, the rotating shaft 30 can be enabled to overcome the axial thrust of the water to be bounced and suspended, the leakage amount is controlled in a very small range, and the output efficiency of the high-pressure pump is greatly improved.

(3) Be equipped with centripetal cone groove 33 in the one side that supporting part 32 is close to step 22, the high pressure water is at centripetal cone groove 33 accumulation formation centripetal thrust for reduce the centrifugal force beat that rotation axis 30 produced when rotatory, make clearance fit's rotation axis 30 and cavity 21 inner wall, rotation axis 30 and first through-hole 11 inner wall move more steadily when rotatory, improve axial rotation's stability, and then reduced rotation axis 30 and cavity 21 inner wall, the wearing and tearing that produce when first through-hole 11 inner wall clearance fit, increase of service life.

With reference to fig. 3, in an embodiment, the rotating shaft 30 includes a rotating shaft main body 34, the supporting portion 32 is protruded from the periphery of the rotating shaft main body 34, and the centripetal cone groove 33 is formed by an outer surface of the rotating shaft main body 34 and a surface of the supporting portion 32 near one side of the step 22. Alternatively, the surface of the support portion 32 is a plane, and the centripetal taper groove 33 is formed by the outer surfaces of the support portion 32 and the rotating shaft body 34, which are plane. Alternatively, the surface of the support portion 32 is a curved surface, and the centripetal conical groove 33 is formed by the support portion 32 and the outer surface of the rotating shaft body 34. Referring to fig. 4, preferably, the included angle θ of the centripetal conical groove 33 ranges from 20 ° to 80 °.

Referring to fig. 3 and 4, in an embodiment, the outer surface of the rotating shaft main body 34, the surface of the supporting portion 32 near the step 22, and the inner surface of the cavity 21 form a rebound cavity 23, the rebound hole 341 is disposed on the rotating shaft main body 34, and the rebound hole 341 is communicated with both the second through hole 31 and the rebound cavity 23. When the cleaning head 100 is in a stationary state, the support 32 abuts the step 22. Referring to fig. 5 and 6, when the cleaning nozzle 100 is in a floating state, the supporting portion 32 is not abutted to the step 22, and the bounce cavity 23 is enlarged. Because the axial section of the bounce cavity 23 is far larger than the stress area of the high-pressure water axially acting on the rotating shaft 30, the bounce hole 341 only needs to be set to be very small, the rotating shaft 30 can be bounced to suspend by overcoming the axial thrust of the water, the leakage amount is controlled in a very small range, and the output efficiency of the high-pressure pump is greatly improved. Alternatively, the number of the rebound holes 341 is one or more. Alternatively, the number of the rebound holes 341 is 3. Optionally, the diameter of the rebound holes 341 is 0.2-1 mm. Optionally, the diameter of the rebound holes 341 is 0.4-0.5 mm.

Referring to fig. 3 and 4, in an embodiment, the outer wall of the supporting portion 32 and the inner wall of the cavity 21 form a drainage gap 24, the drainage gap 24 includes a first drainage gap 241 in a gradually expanding conical shape and a second drainage gap 242 in a straight cylindrical shape, the first drainage gap 241 is communicated with the second drainage gap 242, the first drainage gap 241 is communicated with the bounce cavity 23, and the second drainage gap 242 is communicated with the drainage hole 25 disposed on the housing 20. When the high-pressure water in the bounce cavity 23 bounces the rotating shaft 30, the excess high-pressure water flows out from the drainage gap 24 to the drainage hole 25, and since the drainage gap 24 has a first drainage gap 241 with a gradually expanding conical shape, the gap thereof gradually expands, the drainage amount also gradually increases, and the flow rate of the bounce hole 341 is fixed under the same pressure, the water pressure in the bounce cavity 23 tends to be balanced, so that the lower end face of the support portion 32 of the rotating shaft 30 is suspended at the position of the first drainage gap 241.

With reference to fig. 3, in an embodiment, a first gap 26 is formed between an outer wall of the rotating shaft body 34 and an inner wall of the cavity 21, a first lubrication ring 27 formed by a groove is disposed on a portion of the inner wall of the cavity 21 at the first gap 26 along a circumferential direction thereof, the first lubrication ring 27 is in communication with the first gap 26, and the first gap 26 is in communication with the bounce cavity 23.

In one embodiment, the outer wall of the rotating shaft body 34 and the inner wall of the first through hole 11 form a second gap 12, a portion of the inner wall of the first through hole 11 at the second gap 12 is opened with a second lubricating ring 13 formed by a groove along the circumferential direction thereof, the second lubricating ring 13 is communicated with the second gap 12, and the second gap 12 is communicated with the drain hole 25. One end of the rotating shaft 30 forms a first gap 26 with the inner wall of the cavity 21, the other end of the rotating shaft 30 forms a second gap 12 with the inner wall of the first through hole 11, the first gap 26 and the second gap 12 form two points and one line for guiding the rotating shaft 30, and the first lubricating ring 27 and the second lubricating ring 13 are used for storing leaked high-pressure water and providing annular lubrication for the first gap 26 and the second gap 12, thereby replacing the traditional bearing and lubricant.

In one embodiment, a positioning gap 14 is formed between the outer wall of the fixing seat 10 and the inner wall of the housing 20, and the positioning gap 14 is used for ensuring the concentricity of the axis of the first gap 26 and the axis of the second gap 12. The positioning gap 14 can further ensure that the first gap 26 and the second gap 12 are on the same axis of two points and one line, thereby further reducing the abrasion generated when the rotating shaft 30 is in clearance fit with the inner wall of the cavity 21 and the inner wall of the first through hole 11, and prolonging the service life.

In one embodiment, a side of the fixing seat 10 close to the housing 20 is provided with an external directional cone 15, a side of the housing 20 close to the fixing seat 10 is provided with an internal directional cone 28 adapted to the external directional cone 15, and after the fixing seat 10 is connected to the housing 20, the external directional cone 15 and the internal directional cone 28 are matched with each other and abutted against each other. The fixing base 10 and the housing 20 are in taper connection through the matching of the directional outer cone 15 and the directional inner cone 28, which is used for ensuring the concentricity of the axis of the first gap 26 and the axis of the second gap 12, thereby ensuring the coaxiality of the fixing base 10 and the housing 20.

Optionally, the included angle α of the taper of the directional outer cone 15 ranges from 100 ° to 150 °.

Optionally, the included angle β of the taper of the directional inner cone 28 ranges from 30 ° to 80 °.

In one embodiment, the outer wall of the fixing base 10 is provided with a first threaded portion 16, the inner wall of the outer shell 20 is provided with a second threaded portion 29, and the first threaded portion 16 and the second threaded portion 29 cooperate to connect the fixing base 10 to the outer shell 20. The fixing base 10 and the housing 20 are stably connected by matching the first thread part 16 and the second thread part 29, and due to the adoption of threaded connection, the fixing base and the housing are firmly connected and are convenient to disassemble and assemble. Alternatively, the first threaded portion 16 is male and the second threaded portion 29 is female.

In one embodiment, a third threaded portion 35 is disposed on a side of the rotating shaft 30 extending out of the housing 20, and the spray head 40 is provided with a fourth threaded portion 42, wherein the third threaded portion 35 and the fourth threaded portion 42 cooperate to connect the spray head 40 to the rotating shaft 30. The rotation shaft 30 and the injection head 40 are stably connected by the cooperation of the third thread part 35 and the fourth thread part 42, and the connection between the rotation shaft and the injection head is firm and the disassembly and assembly are convenient due to the adoption of the threaded connection. Alternatively, the third threaded portion 35 is male and the fourth threaded portion 42 is female.

In one embodiment, a connection cavity 17 is formed at one end of the fixed seat 10 away from the outer shell 20, a fifth threaded portion 18 is formed on an inner wall of the connection cavity 17, and the fifth threaded portion 18 is used for being in threaded connection with a sixth threaded portion provided on the water inlet high-pressure pipe. Fixing base 10 and water inlet high-pressure tube realize stable connection through the cooperation of fifth screw portion 18 and sixth screw portion, and it is owing to adopt threaded connection, not only makes both firm in connection, and easy dismounting. Optionally, the fifth threaded portion 18 is an internal thread.

In summary, the ultrahigh-pressure water jet cleaning nozzle 100 provided by the embodiment has at least the following beneficial effects:

(1) the utility model provides an ultrahigh pressure water jet washs shower nozzle 100, its rotary power comes from the jet orifice 41 that the beat set up, does not need additionally to increase power unit and realizes rotatoryly to the autogyration of washing shower nozzle has been realized.

(4) When the high-pressure water in the bounce cavity 23 bounces the rotating shaft 30, the excess high-pressure water flows out from the drainage gap 24 to the drainage hole 25, and since the drainage gap 24 has a first drainage gap 241 with a gradually expanding conical shape, the gap thereof gradually expands, the drainage amount also gradually increases, and the flow rate of the bounce hole 341 is fixed under the same pressure, the water pressure in the bounce cavity 23 tends to be balanced, so that the lower end face of the support portion 32 of the rotating shaft 30 is suspended at the position of the first drainage gap 241.

(5) The fixed seat 10 and the shell 20 are in taper connection through the matching of the directional outer cone 15 and the directional inner cone 28, so that the coaxiality of the fixed seat 10 and the shell 20 is ensured.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. An ultra-high pressure water jet cleaning spray head (100), characterized by: the device comprises a fixed seat (10) with a first through hole (11), a shell (20) with a cavity (21), a rotating shaft (30) with a second through hole (31) and a spray head (40) with a spray hole (41), wherein the spray hole (41) is arranged in a deflection way;

one end of the fixed seat (10) is used for being connected with a water inlet high-pressure pipe, and the other end of the fixed seat (10) is connected with the shell (20);

the rotating shaft (30) is arranged in the cavity (21) and is in clearance fit with the inner wall of the cavity (21), one end of the rotating shaft extends out of the shell (20) and is connected with the spraying head (40), the other end of the rotating shaft is in clearance fit with the inner wall of the first through hole (11), and the first through hole (11) is communicated with the second through hole (31);

a step (22) is arranged in the cavity (21), a supporting part (32) is arranged on the rotating shaft (30), the supporting part (32) is matched with the step (22) to limit and install the rotating shaft (30) in the cavity (21) and form a rebound cavity (23), a rebound hole (341) is arranged on the rotating shaft (30), and the rebound hole (341) is communicated with the second through hole (31) and the rebound cavity (23);

and a centripetal conical groove (33) is formed in one side, close to the step (22), of the supporting part (32) and used for reducing centrifugal force deflection generated by the rotating shaft (30) during rotation.

2. The ultra-high pressure water jet cleaning spray head of claim 1, wherein: the rotating shaft (30) comprises a rotating shaft main body (34), the supporting portion (32) is arranged on the periphery of the rotating shaft main body (34) in a protruding mode, and the centripetal conical groove (33) is formed by the outer surface of the rotating shaft main body (34) and the surface of the supporting portion (32) close to one side of the step (22).

3. The ultra-high pressure water jet cleaning spray head of claim 2, wherein: the outer surface of the rotating shaft main body (34), the surface of the supporting part (32) close to one side of the step (22) and the inner surface of the cavity (21) form the rebound cavity (23), the rebound hole (341) is arranged on the rotating shaft main body (34), and the rebound hole (341) is communicated with the second through hole (31) and the rebound cavity (23).

4. The ultra-high pressure water jet cleaning showerhead of claim 3, wherein: the outer wall of supporting part (32) with cavity (21) inner wall forms sluicing clearance (24), sluicing clearance (24) are including one section and are conical first sluicing clearance (241) of divergent formula and one section and are the cylindrical second sluicing clearance (242) of straight section, first sluicing clearance (241) with second sluicing clearance (242) intercommunication, first sluicing clearance (241) with bounce-back chamber (23) intercommunication, second sluicing clearance (242) with the outlet (25) intercommunication that sets up on shell (20).

5. The ultra-high pressure water jet cleaning showerhead of claim 4, wherein: the outer wall of the rotating shaft main body (34) and the inner wall of the cavity (21) form a first gap (26), a first lubricating ring (27) formed by a groove is arranged on the inner wall of the cavity (21) in the circumferential direction of the portion of the inner wall of the first gap (26), the first lubricating ring (27) is communicated with the first gap (26), and the first gap (26) is communicated with the bounce cavity (23).

6. The ultra-high pressure water jet cleaning spray head of claim 5, wherein: the outer wall of the rotating shaft main body (34) and the inner wall of the first through hole (11) form a second gap (12), a second lubricating ring (13) formed by a groove is arranged on the part, located at the second gap (12), of the inner wall of the first through hole (11) along the annular direction of the first through hole, the second lubricating ring (13) is communicated with the second gap (12), and the second gap (12) is communicated with the water drainage hole (25).

7. The ultra-high pressure water jet cleaning spray head of claim 6, wherein: a positioning gap (14) is formed between the outer wall of the fixed seat (10) and the inner wall of the shell (20), and the positioning gap (14) is used for ensuring the concentricity of the axis of the first gap (26) and the axis of the second gap (12).

8. The ultra-high pressure water jet cleaning spray head of claim 6, wherein: fixing base (10) are close to one side of shell (20) is equipped with directional outer cone (15), shell (20) are close to one side of fixing base (10) be equipped with directional interior cone (28) of directional outer cone (15) looks adaptation, fixing base (10) with shell (20) are connected the back, directional outer cone (15) with directional interior cone (28) mutually support and butt for ensure the axis of first clearance (26) with the axis concentricity of second clearance (12).

9. The ultra-high pressure water jet cleaning spray head of any one of claims 1 to 7, wherein: the outer wall of fixing base (10) is equipped with first screw thread portion (16), the inner wall of shell (20) is equipped with second screw thread portion (29), first screw thread portion (16) with second screw thread portion (29) cooperation will fixing base (10) connect in on shell (20).

10. The ultra-high pressure water jet cleaning spray head of any one of claims 1 to 7, wherein: one side of the rotating shaft (30) extending out of the shell (20) is provided with a third thread part (35), the spraying head (40) is provided with a fourth thread part (42), and the third thread part (35) is matched with the fourth thread part (42) to connect the spraying head (40) to the rotating shaft (30).