CN115106217B

CN115106217B - Self-service car washing intelligent induction special spray gun

Info

Publication number: CN115106217B
Application number: CN202210898017.8A
Authority: CN
Inventors: 艾宗文; 鄢荣华; 朱斌; 邓明远
Original assignee: Guangdong Chehaiyang Environmental Protection Technology Co ltd
Current assignee: Guangdong Chehaiyang Environmental Protection Technology Co ltd
Priority date: 2022-07-28
Filing date: 2022-07-28
Publication date: 2023-05-12
Anticipated expiration: 2042-07-28
Also published as: CN115106217A

Abstract

The invention discloses a self-service car washing intelligent induction special spray gun which comprises a gun shell assembly, a driving assembly, an induction coil and a gun nozzle assembly. The gun shell component comprises a gun shell body comprising a gun head part, a holding part and a spanner seat and a handshaking rubber coating; the driving assembly comprises a gun core and a movable trigger, the gun core is fixedly arranged in the gun shell, one end of the movable trigger is rotationally connected to the connecting piece, and the free end of the movable trigger penetrates through a through hole in the gun shell and stretches into the embedded spanner seat; the induction coil comprises a chip and is fixedly arranged on the inner side wall of the gun head; the gun nozzle assembly comprises a nozzle, the nozzle is fixedly connected with the second gun barrel of the gun core through a transition joint, and a plastic sheath is arranged outside the nozzle. The invention provides the special car washing spray gun for the self-service car washing scene, effectively prolongs the service life of the spray gun, improves the use experience and intelligence, shortens the car washing waiting time, and improves the utilization rate of equipment and sites, thereby bringing convenience to car owners and improving the overall performance of the self-service car washing spray gun.

Description

Self-service car washing intelligent induction special spray gun

Technical Field

The invention belongs to the field of self-service car washing equipment, and particularly relates to an intelligent induction special spray gun for self-service car washing.

Background

In recent years, a self-service car washer is a machine that washes a car with high-pressure water. Mainly comprises a control system, a circuit, an air circuit, a waterway and a mechanical structure. The car washer has the characteristics of simple operation, elegant appearance, small damage to car paint, and the like. In recent years, the method is widely applied to the automobile service industry.

Most of self-service car washing machines are cabinet-type structures, and a cleaning gun and a foam gun are directly connected through a high-pressure pump, so that the functions of spraying high-pressure clean water and washing foam are realized. Most of the existing water cleaning guns and foam guns in the market have a plurality of inconvenient problems, such as: poor discrimination of the gun shell leads to easy taking of wrong water gun or foam gun, easy abrasion and fading of the gun shell, easy water leakage of the valve core sealing part, easy falling of the quick-insert nozzle, inconvenient gun hanging and the like. Therefore, the design of the intelligent induction special spray gun for self-service car washing is a research direction.

Disclosure of Invention

In order to solve the defects in the prior art, the invention provides the intelligent induction special spray gun for self-service car washing, which prolongs the service life of the spray gun for self-service car washing, improves the experience and intelligence of the spray gun for self-service car washing, brings convenience for car owners and improves the overall performance of the spray gun through the arrangement of handshaking encapsulation, protruding nails, induction coils, ceramic valve seats and polytetrafluoroethylene valve beads.

In order to achieve the above purpose, the invention provides a self-service car washing intelligent induction special spray gun, which comprises: gun shell component, drive assembly, intelligent induction coil and rifle shower nozzle subassembly.

The gun shell assembly comprises a gun shell and a handshaking rubber coating; the gun shell comprises a gun head, a holding part and a trigger seat, wherein a plurality of hemispherical metal convex nails with upward spherical surfaces are fixedly arranged on the outer surface of the gun head; the hand-held rubber coating device comprises a holding part, a handle and a clamping part, wherein an inward sinking area which is semi-surrounded with the holding part is arranged at the palm center end of the holding part and is used for assembling the hand-held rubber coating with matched shapes, a concave part is arranged on the circumference of the hand-held rubber coating and can be clamped with a convex part at a position corresponding to the inward sinking area of the holding part so as to fix the hand-held rubber coating; the trigger seat is L-shaped, one end of the trigger seat is fixedly connected with the gun head, the other end of the trigger seat is fixedly connected with the free end of the holding part to form an embedded trigger seat, and the movable trigger is enclosed in the embedded trigger seat. The end part of the free end of the gun head is provided with a first through hole, and the end part of the free end of the holding part is provided with a second through hole; a third through hole is formed in the bottom wall of the gun head of the embedded spanner seat.

The driving assembly comprises a gun core and a movable trigger; the gun core is fixedly arranged in the gun shell and comprises a connecting piece, a first gun barrel and a second gun barrel, wherein a valve cavity is formed in the connecting piece, the connecting piece is arranged in a cavity at the communication position of the gun head and the holding part, and the connecting piece is provided with three first pipe cavities, second pipe cavities and third pipe cavities which are respectively communicated with the valve cavity; the first gun barrel is arranged in the holding part, one end of the first gun barrel is connected with the first pipe cavity in a sealing way, and the other end of the first gun barrel is connected with the water inlet pipe group; the second gun barrel is arranged in the gun head, one end of the second gun barrel is connected with the second pipe cavity in a sealing way, and the other end of the second gun barrel extends out of the gun head to be connected with the gun nozzle assembly; the third pipe cavity is positioned below the second pipe cavity, and the axis of the third pipe cavity is coincident with the axis of the valve cavity; a sealing element is arranged in the third pipe cavity and is used for sealing the third pipe cavity when the valve rod accommodated in the sealing element moves forwards and backwards; one end of the movable trigger is rotatably connected to the connecting piece, and the free end of the movable trigger penetrates through the third through hole and stretches into the embedded trigger seat; the valve cavity is internally provided with a self-locking valve group, the self-locking valve group comprises a valve rod, a valve seat, a valve ball and a plug, the plug is arranged on the inner wall of one end of the valve cavity, the valve seat is fixedly arranged in the middle of the valve cavity, the center of the valve cavity is provided with a through hole, the first end of the valve rod passing through the third pipe cavity is clamped into a clamping groove positioned at the middle upper part of the movable trigger, the second end of the valve rod can pass through the through hole to prop against the valve ball, an elastic piece is arranged between the valve ball and the plug, and the valve ball is made of polytetrafluoroethylene and the valve seat is made of ceramic.

The induction coil comprises a chip and is fixedly arranged on the inner side wall of the gun head.

The gun nozzle assembly comprises a nozzle, the nozzle is fixedly connected with the second gun barrel through a transition joint, and a plastic sheath is arranged outside the nozzle.

Further, the gun housing is formed by surrounding a left housing and a right housing which are symmetrical in shape, and each housing is provided with a half gun head part, a half holding part and a half spanner seat which are integrally formed.

Further, the left shell and the right shell of the gun shell are in threaded locking through embedded screws and nuts.

Further, the external thread of the nozzle is in sealing connection with the internal thread of the transition joint by a raw material belt;

further, the connecting piece is made of copper.

Further, the first gun tube and the second gun tube are made of stainless steel

Further, a plurality of clamping grooves formed by protruding ribs are formed in the gun shell and used for fixing the gun core.

Further, a rotary joint is arranged at the joint of the water inlet pipe group and the high-pressure water pipe.

The beneficial effects of the invention are as follows:

1. according to the invention, the ceramic valve seat and the polytetrafluoroethylene beads are adopted to replace the traditional spray gun stainless steel valve seat and stainless steel balls, so that the valve seat is easy to wear and is high in cost and difficult to replace under the condition of the same material. The ceramic valve seat is replaced by a ceramic valve seat and a polytetrafluoroethylene bead, the polytetrafluoroethylene bead is soft, has a certain deformation, is wear-resistant and corrosion-resistant, and the ceramic seat is high in hardness, wear-resistant and corrosion-resistant, so that the ceramic valve seat is more reliable in sealing due to the deformation, is softer than ceramic, is scrapped preferentially, and protects the valve seat from damage. The maintenance is more convenient, the tightness and the service life are higher, and good sealing effect can be kept with the valve seat after the valve seat is worn;

2. the induction coil is arranged in the gun shell, so that different induction information acquisition can be realized when the gun is put back to the original position and taken away, and the aim of judging whether the gun is put back to the original position is fulfilled; furthermore, the device control can be realized through the sensing information, for example, the operation of the device is stopped when the gun is put back, the operation of the device is started when the gun is taken out, and the like, so that the excellent self-service car washing experience of a user is greatly improved;

3. according to the self-service car washing machine, the hemispherical metal convex nails are arranged on the outer surface of the gun shell, and under the situation of self-service car washing, if a customer does not hang the gun back, the customer is thrown on the ground or placed on a plane, the spherical surface of the metal convex points contacts the plane, and the large surface of the gun body does not contact the plane, so that contact abrasion of the gun body is reduced;

4. according to the self-service car washing situation, the gun nozzle with the fixed spraying angle is arranged, and the gun nozzle is connected through threads to form a fixed structure. The quick-inserting nozzle is suitable for non-professionals to use, and solves the technical problems that the traditional quick-inserting nozzle is easy to lose and the switching of different spraying angles and areas is difficult to adjust.

Drawings

FIG. 1 is a schematic diagram of the construction of a clean water lance of one embodiment of a self-service car washing intelligent induction special lance of the present invention;

FIG. 2 is a schematic cross-sectional view of the internal structure of a foam lance according to one embodiment of the invention;

FIG. 3 is a schematic cross-sectional view of a clean water spray gun A-A according to one embodiment of the present invention.

In the figure:

the gun case assembly 1, the driving assembly 2, the induction coil 3, the gun nozzle assembly 4, the gun case 11, the handshake encapsulation 12, the stud 13, the gun core 21, the trigger 22, the plastic sheath 23, the identification block 24, the rotary joint 25, the hook hole 26, the ferromagnetic piece 27, the nozzle 30, the gun head 111, the grip 112, the trigger seat 113, the boss 121, the connector 211, the first barrel 212, the second barrel 213, the valve cavity 214, the valve stem 215, the valve seat 216, the valve ball 217, and the plug 218.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the following description will be made with reference to the accompanying drawings and examples.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

As shown in fig. 1 and 2, the invention provides a self-service car washing intelligent induction special spray gun, which comprises: gun housing assembly 1, drive assembly 2, induction coil 3 and gun nozzle assembly 4.

The gun housing assembly 1 comprises a gun housing 11 and a handshaking encapsulation 12; the gun shell 11 comprises a gun head 111, a holding part 112 and a trigger seat 113, and a plurality of hemispherical metal convex nails 13 with upward spherical surfaces are fixedly arranged on the outer surface of the gun head 111; the palm end of the holding part 112 is provided with an inward-sinking area which is semi-surrounded with the holding part 112 and is used for assembling the handshake encapsulation 12 with matched shapes, the circumference of the handshake encapsulation 12 is provided with a concave part which can be clamped with a convex part 121 at a position corresponding to the inward-sinking area of the holding part 112 to fix the handshake encapsulation 12; the trigger seat 113 is L-shaped, one end of the trigger seat 113 is fixedly connected with the gun head 111, the other end of the trigger seat 113 is fixedly connected with the free end of the holding part 112 to form an embedded trigger seat 113, and the movable trigger 22 is enclosed therein.

The driving assembly 2 comprises a gun core 21 and a movable trigger 22; the gun core 21 is fixedly arranged in the gun shell 11, the gun core 21 comprises a connecting piece 211, a first gun barrel 212 and a second gun barrel 213, wherein a valve cavity 214 is arranged in the connecting piece 211, the connecting piece 211 is arranged in a cavity at the communication position of the gun head 111 and the holding part 112, the connecting piece 211 is provided with three first cavities, a second cavity and a third cavity which are respectively communicated with the valve cavity 214, the first cavities and the third cavities are vertically arranged, and the third cavities and the second cavities are arranged in a V shape; the first gun barrel 212 is arranged in the holding part 112, one end of the first gun barrel 212 is connected with the first pipe cavity in a sealing way, and the other end of the first gun barrel 212 is connected with the water inlet pipe group; the second gun barrel 213 is arranged in the gun head 111, one end of the second gun barrel 213 is connected with the second pipe cavity in a sealing way, and the other end of the second gun barrel 213 extends out of the gun head 111 to be connected with the gun nozzle assembly 4; the third lumen is positioned below the second lumen with its axis coincident with the axis of the valve chamber 214; a seal is provided within the third lumen for sealing the third lumen as the valve stem 215 contained therein moves back and forth; one end of the movable trigger 22 is rotatably connected to the connecting piece 211, and the free end of the movable trigger is arranged in the embedded trigger seat 113 through the through hole on the gun shell 11; the valve cavity 214 is internally provided with a self-locking valve group, the self-locking valve group comprises a valve rod 215, a valve seat 216, a valve ball 217 and a plug 218, the plug 218 is arranged on the inner wall of one end of the valve cavity 214, the valve seat 216 is fixedly arranged in the middle of the valve cavity 214, the center of the valve cavity 214 is provided with a through hole, the first end of the valve rod 215 passing through the third pipe cavity is clamped into a clamping groove positioned at the middle upper part of the movable trigger 22, the second end of the valve rod 215 can pass through the through hole to abut against the valve ball 217, an elastic piece is arranged between the valve ball 217 and the plug 218, the valve ball is made of polytetrafluoroethylene, and the valve seat 216 is made of ceramic.

The induction coil 3 comprises a chip, and the induction coil 3 is fixedly arranged on the inner side wall of the gun head 111.

The gun head assembly 4 comprises a nozzle 30, wherein the nozzle 30 is fixedly connected with a second gun barrel 213 through a transition joint, and a plastic sheath 23 is arranged outside the nozzle 30.

Further, the gun housing 11 is formed by surrounding a left housing and a right housing which are symmetrical in shape, and each housing is provided with a half gun head 111, a half grip 112 and a half trigger seat 113 which are integrally formed.

Further, the left and right shells of the gun shell 11 are screwed by embedded screws and nuts, and the external thread of the nozzle 30 is connected with the internal thread of the transition joint in a sealing manner by a raw material belt.

Further, the connector 211 is made of copper, and the first barrel 212 and the second barrel 213 are made of stainless steel.

Further, a plurality of clamping grooves formed by protruding ribs are formed in the gun housing 11 for fixing the gun core 21.

Further, a rotary joint 25 is provided at the joint of the water inlet pipe group and the high-pressure water pipe.

The invention also provides a special clean water spray gun for intelligent induction of self-service car washing, as shown in figure 3, the spray nozzle 30 of the spray gun is fan-shaped, and the plastic sheath 23 is horn-shaped. Aiming at the water cleaning gun, the fan-shaped nozzle 30 is screwed on the transition joint of the second gun rod through the transition joint and is connected with the second gun rod of the gun body, a plastic bell mouth is arranged outside the fan-shaped nozzle 30, and the plastic sheath 23 of the nozzle 30 is used as a sheath, so that metal parts can be prevented from being contacted with a vehicle body to scratch paint. The external thread of the fan-shaped nozzle 30 and the internal thread of the transition joint are sealed by a raw material belt and can be prevented from loosening; and the fan-shaped direction of the fan-shaped nozzle 30 can be adjusted to be parallel to the large plane of the clean water gun, so that the experience of car washing is improved.

The invention also provides a foam spray gun special for intelligent induction of self-service car washing, which further comprises a spray pipe, wherein a foamer is arranged in the spray pipe, and the spray pipe is connected between the spray nozzle 30 and the transition joint. The foam gun, the nozzle of fish mouth is installed on the foam gun head assembly, is connected with the second stock of rifle core 21, is connected with the valves. The incision direction of the fish mouth spout is parallel to the big plane of the gun body, which is convenient for operation. In contrast, the old-fashioned foam gun mostly adopts the spring leaf, if the gun carelessly drops on the ground or collides with other objects, just bump out the spring leaf very easily and cause the spring leaf to drop even, influences customer experience sense.

As an embodiment, the invention discloses a self-service car washing intelligent induction special spray gun, which comprises a gun body shell, a handle hand-protecting glue, an identification block and a stainless steel locking screw, wherein the gun body shell is provided with a handle; the induction coil 3, the strong magnet, the embedded nut, the embedded trigger seat 113, the movable trigger 22, the self-locking valve group, the water inlet pipe group and the water outlet pipe group are arranged in the gun body shell; and exposed nozzle 30 combinations, hose lock fitting combinations.

The special gun consists of a left shell and a right shell with wear-resistant convex nails 13 and hanging rings, a detachable left and right recognition block, a detachable top recognition block and a detachable handle hand-protecting glue, and is locked by stainless steel locking screws to form an integral shell of the gun; then an embedded trigger seat 113, a movable trigger 22, a self-locking valve group, a water inlet pipe group and a water outlet pipe group which are arranged in the gun body shell form a liquid path, and the manual control is started and stopped; the induction coil 3 arranged in the gun shell can generate an electric signal to the external electric control induction component so as to enable the external circuit to sense the state of the gun; the foam dispersing combination realizes the foam dispersing function by dispersing water flow; the fixed nozzle 30 is fastened through internal threads, so that the quick-insertion nozzle 30 is prevented from falling off and being lost; the nozzle 30 and the plastic sheath 23 prevent the metal parts from contacting the vehicle body to scratch the vehicle paint; the hose locking joint is provided with an outer tooth joint mouth, can be connected with an inner pressure nut of an external high-pressure pipe, and is connected with a sealing ring on an inner core of the high-pressure pipe joint in a tight fit manner to prevent water leakage.

The invention realizes unmanned car washing equipment, can be quickly identified without special guidance, and can not confuse a wrong foam gun and a clear water gun; and the anti-scratch performance of the shell is realized through the wear-resistant convex nails; the wear resistance, corrosion resistance and sealing effectiveness of the gun body core control valve group are improved by the valve group component of the professional material selection, and the service life is greatly prolonged; the handguard glue of the seamless grip and the hanging hook ring of the self-contained type greatly improves the use convenience and the comfort of the product; the fixed nozzles which are tightly connected are not easy to fall off and lose; the set fixed nozzle size reduces the operation difficulty of adjusting the spraying state by a non-professional user; the defects that the traditional car washing spray gun is difficult to distinguish and identify, the movable nozzle needs to be replaced or adjusted in size, the quick-connection structure is easy to fall off, the steel ball copper valve seat is easy to wear and corrode, the sealing effect is poor, the service life is short, and the use comfort is poor are avoided; in particular, the product can realize gun body induction by combining with an electric control induction component of the device, so as to realize starting and stopping of an automatic control function, and replace the traditional button control; greatly improves the use convenience and the operation comfort level of the car washing equipment.

As an embodiment, the side and the top of the gun shell are provided with the detachable independent identification blocks, and the gun shell is distinguished by colors and characters and is easy to distinguish. The soft rubber at the hand holding part is completely encapsulated, and is not split in two halves, and has no middle bonding wire, so that the hand holding feeling is smooth, and the hand is not pressed by the shaking hand holding of the car washing. The top of the gun shell is provided with a hook hole which can be hung on a cabinet or a rocker arm pipe, so that the gun can be conveniently taken. The valve body adopts ceramic valve seat, polytetrafluoroethylene valve pearl, and wearability, corrosion resistance are stronger, and sealed effect is better rifle body wearing and tearing, and the probability of leaking greatly reduced. The side surface of the gun body is provided with wear-resistant nails, and the gun body is discarded on the ground and suspended, so that the gun body is not damaged; an induction coil 3 is arranged in the gun shell, so that parameter information of the gun can be identified; the strong magnet is arranged in the gun shell and can be adsorbed on the surface of iron metal such as a cabinet. The foam gun adopts a fixed fish mouth nozzle for dispersion spraying; the spray nozzle of the clean water gun is in threaded connection with the gun barrel, and never falls off. The side identification block may set a log flag.

In actual use, the valve body assembly is used for controlling water flow on-off, and mainly comprises a valve seat 216, a valve ball (ball), a plug 218, a valve rod 215, and accessories such as a spring, a sealing element and the like. The barrel channel is of a normally closed structure, when the trigger 22 is not buckled, the barrel channel is in a valve bead self-locking state, the trigger 22 is buckled, the valve rod 215 jacks up the valve bead, water flow is smooth, the trigger 22 is loosened, the spring presses the valve bead back to the valve seat 216, the valve bead is tightly matched with the valve seat 216 by adding the pressure of water pressure, and the water flow is stopped. The valve bead is made of polytetrafluoroethylene, has good wear resistance and certain elasticity, and can still keep good sealing effect with the valve seat 216 after being worn.

The gun body comprises a gun shell, an upper embedded identification block 24, a valve body assembly, a side embedded identification block 24, a gun barrel, a handshaking rubber coating 12, a rotary joint assembly and a water inlet joint. The gun shell is provided with the wear-resistant convex nails 13, when the gun is placed on the ground, the gun shell body cannot be ground, and the wear-resistant convex nails 13 are worn first, so that the gun shell is protected to be smooth like a new outer surface.

The induction coil 3 (including a chip) is arranged in the gun shell and can communicate with an induction card at the gun hanging position, so that the induction card at the gun inserting position of the car washer can identify parameters of the gun, and the self-service car washer can be used for intelligent service, so that an external circuit can sense the state of the gun. For example: the clean water gun (foam gun) is pulled out from the gun inserting position, the clean water function (foam function) can be started without pressing a function key, the gun is put back into the gun inserting position, and the function is stopped; if the cleaning gun and the foam gun are misplaced, the car washer can send out a voice prompt to enable an operator to be put back to the correct position.

The gun shell is internally provided with a strong magnetic sheet 27, and the gun can be adsorbed on a cabinet or a rocker arm upright post. The gun can be conveniently placed in the case without a hook or a gun inserting box. The rotary joint assembly is arranged at the joint of the water inlet joint of the gun and the high-pressure rubber pipe, and the torsion water gun cannot wind the high-pressure pipe in the use process, so that the car washing experience of a customer is improved.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

The invention and its embodiments have been described above with no limitation, and the actual construction is not limited to the embodiments of the invention as shown in the drawings. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution should not be creatively devised without departing from the gist of the present invention.

Claims

1. The utility model provides a special spray gun of self-service carwash intelligence response which characterized in that, it includes: the gun comprises a gun shell assembly, a driving assembly, an induction coil and a gun nozzle assembly;

the gun shell assembly comprises a gun shell and a handshaking rubber coating; the gun shell comprises a gun head, a holding part and a trigger seat, wherein a plurality of hemispherical metal convex nails with upward spherical surfaces are fixedly arranged on the outer surface of the gun head; the gun shell is formed by encircling a left shell and a right shell which are symmetrical in shape, and each shell is provided with a half gun head part, a half holding part and a half spanner seat which are integrally formed; the hand-shaking rubber coating is a whole piece of complete rubber coating, and the circumference of the hand-shaking rubber coating is provided with a concave part which can be clamped with a convex part at a position corresponding to the inward-sinking area of the holding part to fix the hand-shaking rubber coating; the gun shell is internally provided with a strong magnetic sheet, the side surface and the top of the gun shell are provided with independent identification blocks, and the color and the character distinction is adopted; the wrench seat is L-shaped, one end of the wrench seat is fixedly connected with the gun head, the other end of the wrench seat is fixedly connected with the free end of the holding part to form an embedded wrench seat, and the movable wrench is surrounded in the embedded wrench seat; the end part of the free end of the gun head is provided with a first through hole, and the end part of the free end of the holding part is provided with a second through hole; a third through hole is formed in the bottom wall of the gun head of the embedded spanner seat;

the driving assembly comprises a gun core and a movable trigger; the gun core is fixedly arranged in the gun shell and comprises a connecting piece, a first gun barrel and a second gun barrel, wherein a valve cavity is formed in the connecting piece, the connecting piece is arranged in a cavity at the communication position of the gun head and the holding part, and the connecting piece is provided with three first pipe cavities, second pipe cavities and third pipe cavities which are respectively communicated with the valve cavity; the first gun barrel is arranged in the holding part, one end of the first gun barrel is connected with the first pipe cavity in a sealing way, and the other end of the first gun barrel is connected with the water inlet pipe group; the second gun barrel is arranged in the gun head, one end of the second gun barrel is connected with the second pipe cavity in a sealing way, and the other end of the second gun barrel extends out of the gun head to be connected with the gun nozzle assembly; the third pipe cavity is positioned below the second pipe cavity, and the axis of the third pipe cavity is coincident with the axis of the valve cavity; a sealing element is arranged in the third pipe cavity and is used for sealing the third pipe cavity when the valve rod accommodated in the sealing element moves forwards and backwards; one end of the movable trigger is rotatably connected to the connecting piece, and the free end of the movable trigger penetrates through the third through hole and stretches into the embedded trigger seat; the valve cavity is internally provided with a self-locking valve group which comprises a valve rod, a valve seat, a valve ball and a plug, the plug is arranged on the inner wall of one end of the valve cavity, the valve seat is fixedly arranged in the middle of the valve cavity, the center of the valve cavity is provided with a through hole, the first end of the valve rod passing through the third pipe cavity is clamped into a clamping groove positioned at the middle upper part of the movable trigger, the second end of the valve rod can pass through the through hole to prop against the valve ball, an elastic piece is arranged between the valve ball and the plug, the valve ball is made of polytetrafluoroethylene, and the valve seat is made of ceramic;

the induction coil comprises a chip and is fixedly arranged on the inner side wall of the gun head and is used for communicating with an induction card at the gun hanging position, so that the induction card at the gun inserting position of the car washer can identify parameters of the gun, and the self-service car washer can perform intelligent service; if the cleaning water gun and the foam gun are misplaced, the car washing machine sends out a voice prompt to enable an operator to be put back to the correct position;

2. The intelligent induction special spray gun for self-service car washing according to claim 1, wherein the left shell and the right shell of the gun shell are in threaded locking through embedded screws and nuts.

3. The intelligent induction special spray gun for self-service car washing according to claim 1, wherein the external thread of the spray nozzle is in sealing connection with the internal thread of the transition joint by a raw material belt.

4. The intelligent induction special spray gun for self-service car washing according to claim 1, wherein the connecting piece is made of copper.

5. The self-service car washer intelligent induction special spray gun according to claim 1, wherein the first gun barrel and the second gun barrel are made of stainless steel materials.

6. The intelligent induction special spray gun for self-service car washing according to claim 1, wherein a plurality of clamping grooves formed by protruding ribs are formed in the gun shell and used for fixing the gun core.

7. The intelligent induction special spray gun for self-service car washing according to claim 1, wherein a rotary joint is arranged at the joint of the water inlet pipe group and the high-pressure water pipe.

8. The special clear water spray gun for intelligent self-service car washing induction is characterized by comprising the special spray gun for intelligent self-service car washing induction, which is characterized in that a spray nozzle of the spray gun is fan-shaped, and the plastic sheath is horn-shaped.

9. A self-service car washing intelligent induction special foam spray gun which is characterized by comprising a spray pipe and the self-service car washing intelligent induction special spray gun according to any one of claims 1 to 7, wherein a foamer is arranged in the spray pipe, and the spray pipe is connected between the spray nozzle and a transition joint.