CN114985145A - Nozzle and high-pressure cleaning equipment - Google Patents

Abstract

The application discloses nozzle and high pressure cleaning equipment, the nozzle includes: the spray nozzle comprises a spray pipe, a rotary connecting piece, a nozzle body and a shell. The ejector tube has opposite forward and rearward ends. The rotary connecting piece is rotatably arranged on the outer peripheral surface of the front end of the injection pipe around the injection pipe. The nozzle body is internally provided with a liquid channel, and one end of the nozzle body is fixedly connected with the front end of the jet pipe so that the liquid channel is communicated with the inner cavity of the jet pipe. The shell is sleeved on the rotary connecting piece and the nozzle body and is jointed with the rotary connecting piece, the shell is provided with a front end and a rear end which are opposite, the front end of the shell is provided with a plurality of spraying cores which are used for communicating liquid channels, and the shell is switched to communicate different spraying cores of the liquid channels after rotating. Through set up swivelling joint spare and nozzle body on the injection pipe, drive a plurality of differences through rotatory shell and spout the liquid passage on the core corresponds the connection nozzle body respectively to the change is from the water type of the liquid injection that carries out in the injection pipe.

Description

Nozzle and high-pressure cleaning equipment

Technical Field

The application relates to the technical field of cleaning equipment, in particular to a nozzle and high-pressure cleaning equipment.

Background

The nozzle is connected at the play water end of water pipe for change spun water type, present nozzle divide into two kinds, one kind is the independent nozzle of formula of inserting soon, every nozzle has different water type spray angle, according to the use scene of difference when using, needs the user to change different nozzles, and the operation is inconvenient, and another kind is duckbilled piece formula nozzle, and the core that spouts in this kind of nozzle can not be replaced, only changes the water type through the interior spring pressing piece of nozzle, greatly reduced the cleaning performance of nozzle. The current nozzle is inconvenient to replace water type when in use and can not meet the actual requirement.

Therefore, there is still a need for a nozzle that solves the above problems.

Disclosure of Invention

It is an object of the present application to provide a nozzle and a high pressure cleaning device for solving the above problems.

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

a nozzle, comprising: the spray nozzle comprises a spray pipe, a rotary connecting piece, a nozzle body and a shell. The ejector tube has opposite forward and rearward ends. The rotary connecting piece is rotatably arranged on the outer peripheral surface of the front end of the injection pipe around the injection pipe. The nozzle body is internally provided with a liquid channel, and one end of the nozzle body is fixedly jointed with the front end of the spray pipe so that the liquid channel is communicated with the inner cavity of the spray pipe. The shell is sleeved on the rotary connecting piece and the nozzle body and is jointed with the rotary connecting piece, the shell is provided with a front end and a rear end which are opposite, the front end of the shell is provided with a plurality of spraying cores which are used for communicating the liquid channels, and the shell is switched and communicated with different spraying cores of the liquid channels after rotating.

In one embodiment, the nozzle further comprises a spray sealing assembly, the spray sealing assembly comprises a first elastic piece and an abutting piece, the first elastic piece and the abutting piece are arranged in the liquid channel, the abutting piece is provided with a through hole communicated with the liquid channel, the abutting piece is an elastic body, the first elastic piece is used for elastically abutting against the abutting piece to enable an outlet end of the abutting piece to abut against the inner side face of the front end of the shell, and liquid sequentially flows to the spray core after passing through the liquid channel and the through hole of the abutting piece.

In one embodiment, the plurality of spray cores are arranged on the same circumferential line at the front end of the shell.

The liquid channel comprises a first channel and a second channel which are communicated, the liquid flows to the spray core after sequentially passing through the first channel, the second channel and the through hole of the abutting part, and the second channel deviates from the axis of the rotation of the shell.

In one embodiment, the jet seal assembly further comprises a first sealing element, which is sleeved on the outer circumferential surface of the abutting element and is positioned between the abutting element and the inner circumferential surface of the liquid channel.

In one embodiment, the nozzle further comprises a positioning assembly, the positioning assembly comprises a second elastic piece and a positioning piece, an accommodating groove is formed in the outer peripheral surface of the nozzle body, a plurality of positioning grooves are formed in the inner peripheral surface of the outer shell, the second elastic piece is accommodated in the accommodating groove, and the positioning piece is connected with the second elastic piece and exposed out of the accommodating groove.

The positions of the positioning grooves and the positions of the liquid channels in different spray cores are in one-to-one correspondence, and when the liquid channels are communicated with one of the spray cores, the positioning piece is accommodated in one of the positioning grooves to limit the rotation of the shell. When the shell rotates under the action of external force, the positioning piece moves out of the positioning groove.

In one embodiment, the second elastic member is a spring, the positioning member is a positioning ball, and the positioning groove is smoothly transited to the inner circumferential surface of the housing so that the positioning member is moved out of the positioning groove.

In one embodiment, a first limiting portion is arranged on the rotary connecting piece, a second limiting portion is arranged on the injection pipe, and when the rotary connecting piece is arranged on the outer peripheral surface of the front end of the injection pipe, the first limiting portion and the second limiting portion are matched with each other to limit the rotary connecting piece to move along the length direction of the injection pipe.

In one embodiment, the rotary connecting piece is provided with a radial hole penetrating through the inner part and the outer part, the first limiting part is a U-shaped bayonet passing through the radial hole, and the second limiting part is a limiting groove arranged on the outer peripheral surface of the jet pipe close to the front end.

In one embodiment, the shell is in threaded connection or clamped connection with the rotating connecting piece, when the shell is in threaded connection with the rotating connecting piece, a first anti-disassembly portion is arranged on the rotating connecting piece, a second anti-disassembly portion is arranged on the shell, and when the shell is sleeved on the rotating connecting piece, the first anti-disassembly portion and the second anti-disassembly portion are matched to prevent the shell from being disassembled from the rotating connecting piece.

In one embodiment, the first anti-detachment portion is an anti-detachment protrusion disposed on the rotary connector, the second anti-detachment portion is an anti-detachment groove disposed on an inner circumferential surface of the housing, and when the housing is sleeved on the rotary connector, a top end of the anti-detachment protrusion abuts against the anti-detachment groove.

In one embodiment, the anti-dismantling protrusion is obliquely arranged on the rotary connecting piece, a plurality of anti-dismantling grooves are arranged on the inner circumferential surface of the shell, the anti-dismantling grooves are provided with structures matched with the shapes of the top ends of the anti-dismantling protrusions, and the anti-dismantling protrusions can slide into one anti-dismantling groove from the other anti-dismantling groove when the rotary connecting piece is screwed into the shell in the forward direction; when the rotary connecting piece is reversely screwed out of the shell, the anti-disassembly bulge is abutted to one of the anti-disassembly grooves to prevent the shell from being disassembled from the rotary connecting piece.

In one embodiment, the nozzle further includes a second seal member and a third seal member, one end of the nozzle body is received at the front end inner edge of the injection pipe, the second seal member is provided between the outer peripheral surface of the nozzle body and the front end inner edge of the injection pipe, and the third seal member is provided between the front end outer edge of the nozzle body and the inner peripheral surface of the outer shell.

In one embodiment, the front end of the spray pipe is provided with a key groove, the outer peripheral surface of one end of the nozzle body is provided with a positioning key, and the key groove and the positioning key are matched to enable one end of the nozzle body to be detachably and fixedly engaged with the front end of the spray pipe.

In one embodiment, at least two of the cores on the housing have different spray patterns, the spray patterns being at least one of spray pressure, spray flow rate, spray pattern, and preferably, each of the cores on the housing has a different spray pattern.

In one embodiment, the front end of the shell is provided with a plurality of through holes penetrating through the inside and the outside, and each through hole of the shell is internally provided with a spray core.

The nozzle still includes the back lid, the fixed cover of back lid is established on the injection pipe, back lid is provided with annular arch towards swivel connected coupler one side, the rear end movable sleeve of shell is established annular is protruding last.

A high-pressure cleaning device comprises a main machine and the nozzle in any one of the embodiments, wherein the rear end of the injection pipe is connected with a liquid outlet of the main machine.

Compared with the prior art, the beneficial effects of this application include at least:

this application drives the liquid passage on the core corresponds the nozzle body of spouting of a plurality of differences through rotating the shell through setting up swivel connected coupler and nozzle body on the injection pipe to change the liquid route of carrying out from the injection pipe, and then make the different water types of water stable switching, satisfy user's in-service use demand, have good injection effect.

Drawings

Fig. 1 is a schematic structural view of a high-pressure cleaning apparatus according to an embodiment of the present application.

FIG. 2 is an exploded view of a nozzle in accordance with an embodiment of the present application;

FIG. 3 is a cross-sectional view of a nozzle of an embodiment of the present application;

FIG. 4 is a schematic structural view of a nozzle body according to an embodiment of the present application;

FIG. 5 is a schematic structural view of a rotary joint according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of a housing according to an embodiment of the present application.

In the figure: 1. an injection pipe; 11. a second limiting part; 12. a keyway; 2. a rotating connector; 21. a first limiting part; 22. a radial bore; 23. a first anti-removal portion; 3. a nozzle body; 31. a liquid channel; 311. a first channel; 312. a second channel; 32. accommodating grooves; 33. a positioning key; 4. a housing; 41. spraying a core; 42. positioning a groove; 43. a second tamper portion; 44. a through hole; 5. a jet seal assembly; 51. a first elastic member; 52. an abutting member; 53. a first seal member; 6. a positioning assembly; 61. a second elastic member; 62. a positioning member; 7. a second seal member; 8. a third seal member; 9. and a rear cover.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their repetitive description will be omitted.

The words used in this application to describe positions and orientations are provided by way of example in the drawings and can be changed as desired and are intended to be encompassed by the present application.

Referring to fig. 1-6, the present application discloses a nozzle usable on a high pressure cleaning apparatus, such as a high pressure cleaner or a high pressure cleaning gun, the nozzle comprising: a spray tube 1, a swivel connection 2, a nozzle body 3 and a housing 4.

The ejector tube 1 has opposite front and rear ends. The rotary joint 2 is rotatably provided on the outer peripheral surface of the front end of the ejector tube 1 around the ejector tube 1. The nozzle body 3 is internally provided with a liquid channel 31, and one end of the nozzle body 3 is fixedly jointed with the front end of the spray pipe 1 so that the liquid channel 31 is communicated with the inner cavity of the spray pipe 1. The shell 4 is sleeved on the rotary connecting piece 2 and the nozzle body 3 and is connected with the rotary connecting piece 2, the shell 4 is provided with a front end and a rear end which are opposite to each other, the front end of the shell 4 is provided with a plurality of spraying cores 41 which are used for communicating the liquid channel 31, and the shell 4 is switched and communicated with different spraying cores 41 of the liquid channel 31 after rotating. By arranging the rotary connecting piece 2 on the circumferential side wall of the injection pipe 1 and connecting the nozzle body 3 at the front end of the injection pipe 1, in operation, liquid flows through the inside of the nozzle through the liquid channel 31 with the only path and is finally sprayed out through the spraying core 41 arranged on the shell 4, and by rotating the shell 4, different spraying cores 41 on the shell 4 are driven to correspond to one end of the liquid channel 31, so that the water flow type sprayed out from the nozzle is stably switched. The user can be according to specific user demand when using, and different water types are switched to manually rotate shell 4, and the step is simple, and safe in operation, and convenience of customers switches nozzle spun water type, and unique liquid channel 31 carries rivers and through the sole core 41 blowout of spouting simultaneously, and spun rivers have stronger impact effect, and stability is stronger.

In one embodiment, at least two spray cores 41 on the housing 4 have different spray patterns, and the spray patterns are at least one of spray pressure, spray flow rate, and spray form, and preferably, the spray patterns of each spray core 41 on the housing 4 are different, wherein the inner apertures and cross sections of the different spray cores 41 are different, and on the premise of ensuring reasonable spacing of the plurality of spray cores 41 on the same ring during design, the appropriate number and types of spray cores 41 can be arranged on the housing 4 according to specific needs. The diversified use requirements of the user are met, and the method is suitable for working in different use scenes.

In one embodiment, the front end of the housing 4 is provided with a plurality of through holes 44 penetrating through the inside and the outside, and each through hole 44 of the housing 4 is provided with one spray core 41. The axial section of the through hole 44 is preferably an isosceles trapezoid structure, and the spraying core 41 is connected in the through hole 44 with a large end and a small end, so that the spraying core 41 can be effectively prevented from falling off from the through hole 44 in the working process and being sprayed out along with water flow.

The nozzle can also include back lid 9, the fixed cover of back lid 9 is established on injection pipe 1, back lid 9 can be through the round pin strong cooperation mode can dismantle fixed cooperation with injection pipe 1, back lid 9 is provided with the annular arch towards 2 one sides of swivel connected coupler, the rear end activity cover of shell 4 is established annular is protruding. Connect shell 4 through setting up behind lid 9 and the 2 locks of rotating connector, the rear end movable sleeve of shell 4 is protruding on the annular, and the annular of back lid 9 is protruding to have a supporting role to shell 4's rotation, and stable in structure is difficult for taking place to rock during the rotation.

In a preferred embodiment, the nozzle further includes a jet seal assembly 5, the jet seal assembly 5 includes a first elastic member 51 and an abutting member 52 disposed in the liquid passage 31, the abutting member 52 has a through hole communicating with the liquid passage 31, the abutting member 52 is an elastic body, such as a plastic member or a rubber member, the first elastic member 51 is used for elastically abutting against the abutting member 52 so that an outlet end of the abutting member 52 abuts against an inner side surface of the front end of the housing 4, and the liquid flows to the jet core 41 after passing through the through holes of the liquid passage 31 and the abutting member 52 in sequence. The first elastic member 51 is, for example, a spring, one end of the spring is connected to the abutting member 52, the other end of the spring is connected to and abutted against the inner side of the liquid channel 31, wherein the path of the liquid channel 31 is preferably an L-shape with a corner, the abutting member 52 is a tubular part with two opposite ends, one end of the abutting member 52 abuts against the inner wall of the housing 4, when the housing 4 is manually rotated by a user to switch the water type sprayed from the nozzle, the abutting member 52 made of an elastic material always abuts against the inner wall of the housing 4, and when the water flow in the nozzle is switched between two water types, the water flow passes through the process from opening to closing and then opening, and in the switching process, the whole tightness of the nozzle is strong, the water seepage and leakage phenomenon cannot occur, and good use experience of the user is ensured.

In one embodiment, the plurality of nozzles 41 are arranged on the same circumferential line at the front end of the housing 4. Wherein the plurality of nozzles 41 are connected on the same circumferential line and are preferably uniformly distributed. The user rotates the fixed angle with shell 4 according to a direction of rotation, just can realize that different core 41 and the liquid channel 31 of spouting correspond, and convenience of customers switches the spun water type in the nozzle.

The liquid passage 31 includes a first passage 311 and a second passage 312 which are communicated with each other, the liquid flows to the nozzle core 41 after passing through the first passage 311, the second passage 312 and the through hole of the abutting member 52 in sequence, and the second passage 312 deviates from the axis of rotation of the housing 4. Wherein the abutting member 52 abuts against the second channel 312 through the first elastic member 51, the abutting member 52 is supported by the elastic force of the first elastic member 51 and abuts against the inner wall of the housing 4 all the time, and abuts against different positions of the inner wall of the housing 4 along with the rotation of the housing 4, and in the process of switching different water types, good sealing performance is ensured, and water leakage or water overflow of the whole nozzle is prevented. By providing the second channel 312 offset from the axis of rotation of the housing 4, it is convenient to distribute the positions of the plurality of nozzles 41 to different positions at the front end of the housing 4.

In a further preferred embodiment, the jet sealing assembly 5 further comprises a first sealing member 53, wherein the first sealing member 53 is sleeved on the outer circumferential surface of the abutment member 52 and is located between the abutment member 52 and the inner circumferential surface of the liquid channel 31. The first sealing member 53 may be a plastic sealing ring, a rubber ring or a silicone ring, and when the first sealing member 53 is connected, the first sealing member 53 is adhered or otherwise connected to the abutting member 52, and is pressed against the inner wall of the housing 4 by the abutting member 52. Through setting up first sealing member 53, prevent that liquid from oozing from the gap between the contact piece 52 and the inner wall of shell 4, no matter the contact piece 52 is when the nozzle is worked, when the water type switches over, the contact is on the inner wall of shell 4 all the time, prevents that rivers from flowing out from other spouting cores 41 on the shell 4 after passing through the contact piece 52 inside, leads to required water type water pressure unstability, influences the result of use.

In one embodiment, the nozzle further includes a positioning assembly 6, the positioning assembly 6 includes a second elastic member 61 and a positioning member 62, the nozzle body 3 is provided with a receiving groove 32 on an outer circumferential surface thereof, the housing 4 is provided with a plurality of positioning grooves 42 on an inner circumferential surface thereof, the second elastic member 61 is received in the receiving groove 32, and the positioning member 62 is connected to the second elastic member 61 and exposed from the receiving groove 32. The second elastic member 61 is, for example, a spring, one end of the spring abuts against the inner wall of the receiving groove 32, and the other end abuts against the positioning member 62, wherein the positioning member 62 is, for example, a spherical or hemispherical component, and the positioning member 62 is pushed by the second elastic member 61 to abut against the receiving groove 32, the receiving groove 32 is formed on the outer circumferential surface of the nozzle body 3, the axial direction of the receiving groove 32 can be perpendicular to the axial direction of the nozzle body 3, and a certain included angle can also exist, which is not limited herein.

The positioning grooves 42 correspond to positions of the liquid passages 31 when the liquid passages 31 communicate with different spray cores 41, and when the liquid passages 31 communicate with one of the spray cores 41, the positioning member 62 is accommodated in one of the positioning grooves 42 to restrict the rotation of the housing 4. This water type during operation of nozzle in the one hand chooseing for use, locating component 6 and constant head tank 42 cooperation can prevent that shell 4 from rotatory certain angle by oneself in the relative nozzle body 3, the spun water type has been changed, on the other hand, when the user adjusts, manual rotation shell 4, after rotatory a position, second elastic component 61 pushes into constant head tank 42 with setting element 62 in, certain stereovision can appear, give the hand that the user adjusted through the vibration feedback, convenience of customers confirms that should spout core 41 and liquid channel 31 position and correspond completely. When the housing 4 rotates under the action of external force, the positioning element 62 is moved out of the positioning groove 42, and in the process of switching water types of the rotating housing 4, the positioning element 62 is extruded through the side wall of the positioning groove 42, so that the length of the second elastic element 61 abutting against the positioning element 62 is compressed, and when the positioning element is rotated into the next positioning groove 42, the second elastic element 61 pushes the positioning element 62 into the positioning groove 42 again, and the relative angle of rotation of the housing 4 and the nozzle body 3 is fixed.

Preferably, the second elastic member 61 is a spring, the positioning member 62 is a positioning ball, the positioning groove 42 is smoothly transited between the inner circumferential surface of the housing 4 to enable the positioning member 62 to move out of the positioning groove 42, the positioning ball can be a steel ball made of stainless steel or a ball made of plastic, when the housing 4 is rotated, the contact area between the positioning ball and the positioning groove 42 is small, and a user can rotate the housing 4 by a certain angle through a small force, so that the water type switching of the nozzle is realized.

In one embodiment, a first limiting portion 21 is disposed on the rotary connector 2, a second limiting portion 11 is disposed on the injection pipe 1, and when the rotary connector 2 is disposed on the outer peripheral surface of the front end of the injection pipe 1, the first limiting portion 21 and the second limiting portion 11 cooperate to limit the movement of the rotary connector 2 along the length direction of the injection pipe 1. First spacing portion 21 and the spacing portion 11 cooperation of second restrict the position of swivelling joint spare 2 length direction on injection pipe 1, prevent at the in-process of rotation regulation shell 4, fix shell 4 on injection pipe 1 through swivelling joint spare 2 and follow swivelling joint spare 2 and drop from injection pipe 1 to guarantee that the nozzle can stable conversion when switching different water types, can not disintegrate.

In a further embodiment, the rotating connector 2 is provided with a radial hole 22 penetrating through the inner part and the outer part, the first limiting part 21 is a U-shaped bayonet passing through the radial hole 22, and the second limiting part 11 is a limiting groove, such as an annular groove, provided on the outer circumferential surface of the injection pipe 1 near the front end. The first limit portion 21 is, for example, a slot provided on the rotary connector 2, the second connection portion is, for example, an annular groove provided on the side wall of the injection pipe 1, and the U-shaped bayonet locks are respectively connected to the limit groove and the radial hole 22, so that the rotary connector 2 and the injection pipe 1 are locked in the axial direction of the injection pipe 1, and the rotary connector 2 is prevented from dropping off from the injection pipe 1 with the housing 4 when the water type of the nozzle is switched.

In one embodiment, the housing 4 is in threaded connection or clamped connection with the rotary connecting piece 2, when the housing 4 is in threaded connection with the rotary connecting piece 2, a first anti-disassembly portion 23 is arranged on the rotary connecting piece 2, a second anti-disassembly portion 43 is arranged on the housing 4, and when the housing 4 is sleeved on the rotary connecting piece 2, the first anti-disassembly portion 23 and the second anti-disassembly portion 43 are matched to prevent the housing 4 from being disassembled from the rotary connecting piece 2. When the installation, the installer passes through the thread connection with shell 4 on swivel connected coupler 2, at the in-process of twisting, shell 4 is close to the other end on swivel connected coupler 2 slowly on the axial direction, prevent to tear portion 23 and the butt joint of second portion 43 of tearing open until first, prevent through setting up that first portion 23 and the cooperation of second portion 43 of tearing open are torn open, prevent that the user from when twisting the spun water type of shell 4 adjusting nozzle, lead to shell 4 to drop from swivel connected coupler 2, influence the normal work of nozzle, reduce user's use experience. On the other hand, use forward rotation shell 4 to be the screwing direction of shell 4, rotatory shell 4 when shell 4 twists to the end, shell 4 can drive swivel connected coupler 2 rotatoryly, and then realize the water type and switch, during reverse rotation shell 4, receive first portion 23 and the second of preventing tearing open portion 43 mating reaction, shell 4 can't be pulled down from swivel connected coupler 2, and reverse rotation shell 4 can drive swivel connected coupler 2 rotatoryly, and then realize the water type and switch, therefore, forward and reverse rotation shell 4, the water type can be realized and switched.

In a specific embodiment, the anti-detachment protrusions are obliquely arranged on the rotating connector 2, an included angle exists between the anti-detachment protrusions and the normal direction of the ring at the position, a plurality of anti-detachment grooves are arranged on the inner circumferential surface of the shell 4, the anti-detachment grooves have structures matched with the shapes of the top ends of the anti-detachment protrusions, when the rotating connector 2 is screwed into the shell 4 in the forward direction, the anti-detachment protrusions can slide into another anti-detachment groove from one anti-detachment groove, specifically, when the shell 4 is rotated and assembled in the direction, the anti-detachment protrusions can sequentially slide into the anti-detachment grooves distributed in an annular shape and then slide out until the shell 4 is screwed to the bottom. When the shell 4 is rotated reversely, the anti-disassembly protrusion abuts against one of the anti-disassembly grooves to prevent the shell 4 from being disassembled from the rotary connecting piece 2, so that the shell 4 cannot be screwed down along the thread line on the rotary connecting piece 2 again, and meanwhile, the rotary connecting piece 2 can be driven to overcome the friction force with the injection pipe 1 to rotate. The two directions for screwing the housing 4 can stably realize the butt joint of different spraying cores 41 on the housing 4 and the liquid channel 31, thereby realizing the water type switching.

When shell 4 and rotating connector 2 are the joint and connect, for example, set up annular protruding on rotating connector 2's the outer peripheral face, set up on shell 4's the inner wall with the protruding complex annular groove of annular, when the assembly, produce corresponding elastic deformation through shell 4, thereby after the installation, make annular groove and the protruding joint of annular, shell 4 can drive when adjusting and spout core 41 rotatoryly, and make the difference spout core 41 and liquid passage 31 intercommunication, thereby switch different water spray modes.

In a preferred embodiment, the nozzle further includes a second seal 7 and a third seal 8, one end of the nozzle body 3 is received at a front end inner edge of the injection pipe 1, the second seal 7 is provided between an outer peripheral surface of the nozzle body 3 and the front end inner edge of the injection pipe 1, and the third seal 8 is provided between a front end outer edge of the nozzle body 3 and an inner peripheral surface of the outer shell 4. The second sealing element 7 and the third sealing element 8 can be rubber rings or silica gel rings made of the same material, wherein the second sealing element 7 is connected between the inner edge of the front end of the injection pipe 1 and the nozzle body 3, so that water flow is prevented from flowing out through a gap between the front end of the injection pipe 1 and the nozzle body 3, the third sealing element 8 is connected between the outer edge of the front end of the nozzle body 3 and the inner circumferential surface of the shell 4, the waterproof sealing effect is also achieved, water flow is prevented from flowing out to the rear of the nozzle through the outer edge of the front end of the nozzle body 3 and the gap between the inner circumferential surface of the shell 4 after passing through a gap on the inner side of the shell 4, water seepage and leakage inside the nozzle are caused, the sealing performance is improved, and the use experience of a user is improved.

In a preferred embodiment, the front end of the injection pipe 1 is provided with a key groove 12, the outer circumferential surface of one end of the nozzle body 3 is provided with a positioning key 33, and the key groove 12 and the positioning key 33 cooperate to detachably fix the one end of the nozzle body 3 to the front end of the injection pipe 1. When connecting, the navigation key 33 inserts in keyway 12, makes the relative angle locking after nozzle body 3 and injection pipe 1 dock to when user's rotatory shell 4, inside nozzle body 3 can not be rotatory along with shell 4, thereby can realize that the liquid passage 31 in the nozzle body 3 corresponds different core 41 that spouts, reaches the purpose of switching different waters, and this mating mode makes things convenient for the assembly in addition.

The application also provides high-pressure cleaning equipment, which comprises a host and the nozzle in any one of the embodiments, wherein the rear end of the injection pipe 1 is connected with a liquid outlet of the host. Water pump or squirt can be chooseed for use to the host computer, use the squirt as an example for use to the host computer, the water source is connected to the one end of squirt, the other end passes through the pipe connection nozzle, at the during operation, the water pump passes through the pipeline transportation after with the water source pressurization, finally spout core 41 blowout through the nozzle, want under the prerequisite that does not change the output of water pump, when changing the spun water type, the user revolves soon shell 4 through manual, make the rotatory certain angle of shell 4, rivers spout the different water type of core 41 blowout through the difference, satisfy and use under the situation of multiple different needs.

Although embodiments of the present application have been shown and described, it will be understood that the embodiments are illustrative and not restrictive, and that various changes, modifications, substitutions and alterations can be made herein without departing from the spirit and scope of the application by those skilled in the art, and all such changes should fall within the scope of the appended claims.

Claims (13)

1. A nozzle, comprising:

an ejector tube having opposite front and rear ends;

a rotary connector rotatably disposed on an outer circumferential surface of a front end of the injection pipe around the injection pipe;

the nozzle comprises a nozzle body, a liquid channel is arranged in the nozzle body, and one end of the nozzle body is fixedly jointed with the front end of the jet pipe so that the liquid channel is communicated with the inner cavity of the jet pipe;

the shell, the shell cover is established on swivel connected coupler and the nozzle body and with the swivel connected coupler joint, the shell has relative front end and rear end, the front end of shell is provided with and is used for the intercommunication a plurality of cores that spout of liquid passage, the shell switches the intercommunication after the rotation the different cores that spout of liquid passage.

2. The nozzle of claim 1, further comprising a jet seal assembly, wherein the jet seal assembly comprises a first elastic member and an abutting member arranged in the liquid channel, the abutting member has a through hole communicated with the liquid channel, the abutting member is an elastic body, the first elastic member is elastically abutted against the abutting member so that an outlet end of the abutting member is abutted against an inner side surface of the front end of the housing, and the liquid flows to the jet core after sequentially passing through the liquid channel and the through hole of the abutting member.

3. The nozzle of claim 2 wherein said plurality of wicks are disposed on the same circumferential line at the forward end of said housing;

the liquid channel comprises a first channel and a second channel which are communicated, the liquid flows to the spray core after sequentially passing through the first channel, the second channel and the through hole of the abutting part, and the second channel deviates from the axis of the rotation of the shell.

4. The nozzle of claim 2 wherein said jet seal assembly further comprises a first seal member disposed about an outer peripheral surface of said abutment member and between said abutment member and an inner peripheral surface of said liquid passageway.

5. The nozzle of claim 1, further comprising a positioning assembly, wherein the positioning assembly comprises a second elastic member and a positioning member, an accommodating groove is formed on an outer circumferential surface of the nozzle body, a plurality of positioning grooves are formed on an inner circumferential surface of the outer housing, the second elastic member is accommodated in the accommodating groove, and the positioning member is connected to the second elastic member and exposed from the accommodating groove;

the positions of the positioning grooves and the positions of the liquid channels when the liquid channels are communicated with different spray cores are in one-to-one correspondence, and when the liquid channels are communicated with one of the spray cores, the positioning piece is accommodated in one of the positioning grooves to limit the shell to rotate; when the shell rotates under the action of external force, the positioning piece moves out of the positioning groove.

6. The nozzle of claim 5, wherein the second resilient member is a spring, the positioning member is a positioning ball, and the positioning groove is smoothly transitioned with the inner circumferential surface of the housing to allow the positioning member to be removed from the positioning groove.

7. The nozzle of claim 1, wherein the rotary connector is provided with a first limiting portion, the spray tube is provided with a second limiting portion, and when the rotary connector is arranged on the outer circumferential surface of the front end of the spray tube, the first limiting portion and the second limiting portion cooperate to limit the rotary connector to move along the length direction of the spray tube.

8. The nozzle of claim 7, wherein the rotary connector has a radial hole extending therethrough, the first stopper is a U-shaped pin extending through the radial hole, and the second stopper is a stopper groove formed on the outer circumferential surface of the injection pipe near the front end.

9. The nozzle of claim 1, wherein the housing is in threaded or snap-fit engagement with the rotational connector, and when the housing is in threaded engagement with the rotational connector, a first anti-removal portion is provided on the rotational connector, and a second anti-removal portion is provided on the housing, and when the housing is fitted over the rotational connector, the first and second anti-removal portions cooperate to prevent the housing from being removed from the rotational connector.

10. The nozzle of claim 9, wherein the first detachment preventing portion is a detachment preventing projection provided on the rotary joint, and the second detachment preventing portion is a detachment preventing recess provided on an inner peripheral surface of the housing, and a tip of the detachment preventing projection abuts in the detachment preventing recess when the housing is fitted over the rotary joint.

11. The nozzle of claim 10, wherein the anti-removal protrusions are provided obliquely on the rotary joint, and a plurality of anti-removal grooves having a structure matching the shape of the tips of the anti-removal protrusions are provided on the inner peripheral surface of the housing, the anti-removal protrusions being able to slide from one anti-removal groove into the other anti-removal groove when the rotary joint is forwardly screwed into the housing; when the rotary connecting piece is reversely screwed out of the shell, the anti-dismounting bulge abuts against one of the anti-dismounting grooves to prevent the shell from being dismounted from the rotary connecting piece.

12. The nozzle of claim 1, further comprising a second seal and a third seal, wherein one end of the nozzle body is received at a forward end inner edge of the injection tube, the second seal is disposed between an outer circumferential surface of the nozzle body and the forward end inner edge of the injection tube, and the third seal is disposed between the forward end outer edge of the nozzle body and an inner circumferential surface of the outer shell;

the front end of the injection pipe is provided with a key groove, the peripheral surface of one end of the nozzle body is provided with a positioning key, and the key groove and the positioning key are matched to enable one end of the nozzle body to be detachably and fixedly connected with the front end of the injection pipe; the spraying modes of at least two spraying cores on the shell are different, and the spraying modes are at least one of spraying pressure, spraying flow and spraying forms;

the front end of the shell is provided with a plurality of through holes penetrating through the inside and the outside, and each through hole of the shell is internally provided with a spraying core;

the nozzle still includes the back lid, the fixed cover of back lid is established on the injection pipe, back lid is provided with annular arch towards swivel connected coupler one side, the rear end movable sleeve of shell is established annular is protruding last.

13. A high pressure cleaning apparatus, comprising a main body and a nozzle as claimed in any one of claims 1 to 12, wherein the rear end of the injection pipe is connected to the liquid outlet of the main body.

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