CN113663834A - Portable spraying device - Google Patents

Abstract

The proposal provides a portable spraying device, which comprises a waist-striding brace, a battery pack component, a water tank component, a water pump component, a spray gun component and a rear cover, the protecgulum, the protecgulum coats and is stamped the panel, the battery package subassembly includes the battery package, the battery is inserted the frame, the battery package shell, the water tank subassembly includes the water tank, water tank shell, it holds the chamber to form a water pump after the battery package shell is connected with water tank shell, the battery package shell is connected the back with water tank shell and is acceptd in the intracavity of acceping by back lid and protecgulum common formation, be equipped with on the battery package shell and be used for inserting the lead wire hole of putting up the electric wire into with the battery and draw forth, water pump subassembly includes water pump, water pump suction inlet joint, water pump delivery port joint, water pump suction inlet joint one end connection water tank, the water inlet of water pump is connected to the other end, the battery package insert the frame draw forth electric wire with the water pump is established ties mutually, water pump delivery port joint be used for going out water extremely the inlet end of spray gun subassembly. The invention is simple and labor-saving, is convenient to operate, and improves the comfort and experience of users.

Description

Portable spraying device

Technical Field

The invention belongs to the field of sprayers, and particularly relates to a portable spraying device.

Background

The sprayer is a common device for spraying pesticide, disinfectant, water and the like, has the characteristics of simplicity and portability, and is mainly suitable for spraying liquid medicine in small-range orchards, farmlands, gardens, home environments, airports, stations and other occasions. With the development of spraying devices, sprayers mainly use manual and electric shoulder sprayers. When the existing electric shoulder-back sprayer is filled with liquid medicine for spraying, the weight is heavier, the physical consumption of spraying personnel is larger, the adjustability on the spraying distance and range is smaller during spraying, and the spraying workload is increased; in addition, the existing sprayer can cause the circuit disorder of the electric sprayer in the process of miniaturization, and liquid can contact with electrified components such as batteries, electric wires and the like, so that some potential safety hazards are brought; in addition, the battery is generally fixedly arranged, cannot be detached for charging, and only can the sprayer be integrally placed at a charging position; the user needs to squat and back each time when operating the shoulder-back type operation, and the experience is not friendly enough. Therefore, it is necessary to design a sprayer which is portable in movement, time-saving, labor-saving, safe and flexible, and reduces the working intensity of the spraying personnel and the workload.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, the present invention is directed to provide a portable spraying device which greatly improves the comfort and experience of users and is easy to assemble and disassemble.

In order to achieve the above purpose, the invention provides a portable spraying device, which comprises a waist-crossing brace, a battery pack assembly, a water tank assembly, a water pump assembly, a spray gun assembly, a rear cover connected to the waist-crossing brace and a front cover arranged opposite to the rear cover, wherein the front cover is covered with a panel, the battery pack assembly comprises a battery pack, a battery inserting frame and a battery pack shell for accommodating the battery pack and the battery inserting frame, the water tank assembly comprises a water tank and a water tank shell for accommodating the water tank, the battery pack shell and the water tank shell are connected to form a water pump accommodating cavity, the battery pack shell and the water tank shell are connected and then accommodated in an accommodating cavity formed by the rear cover and the front cover, the water pump assembly is arranged in the water pump accommodating cavity, the battery pack shell is provided with a lead hole for leading out an electric wire from the battery inserting frame, the water pump assembly comprises a water pump, a water pump water suction port connector and a water pump water outlet connector, one end of the water pump water suction port connector is connected with the water tank, the other end of the water pump is connected with the water inlet of the water pump, the battery pack is connected with the water tank shell to form an electric wire which is led out through the battery plug frame, the water pump water outlet connector is used for discharging water to the liquid inlet end of the spray gun assembly, the battery pack shell is connected with the water tank shell to reach the corresponding position on the surface of the panel, and the water pump water outlet connector is used for accommodating the water pump water outlet connector.

Preferably, in the portable spraying device, a transparent cover for closing the battery pack is arranged on one surface of the battery pack shell, which is far away from the surface connected with the water tank shell, one end of the transparent cover is connected to the water tank shell in a rotatable opening and closing manner through a connecting shaft and the other end of the transparent cover is connected to the water tank shell through a hasp panel, and the hasp panel comprises a metal hasp; a circle of groove is formed in the inner side of the transparent cover, and a transparent cover sealing gasket is arranged in the groove; and/or a first anti-leakage blocking device is arranged at the lead hole.

Preferably, the portable spraying device, wherein the water pump assembly comprises a corner joint, one end of the water pump water suction port joint is connected with the water outlet hole of the water tank through the corner joint, and a water suction port joint sealing ring is arranged at the joint of the water pump water suction port joint and the water pump; the water pump is an overflow valve water pump, the water pump assembly comprises an overflow nozzle, one end of the overflow nozzle is connected with a first water outlet of the overflow valve water pump, and the other end of the overflow nozzle is connected with a water return hole of the water tank; and/or the water tank shell is provided with water tank shell openings for penetrating through a water outlet hole and a water return hole of the water tank; and/or a second anti-leakage blocking device is arranged at the opening of the water tank shell.

Preferably, the portable spraying device further comprises a three-core connecting terminal and a switch, and the battery pack is connected in series with the water pump, the three-core connecting terminal and the switch through an electric wire led out from the battery inserting frame; the three-core connecting terminal is used for connecting a power supply end of the spray gun assembly, and a switch hole for accommodating a switch and a connecting wire hole for accommodating the three-core connecting terminal are respectively arranged at the connecting part of the battery pack shell and the water tank shell and the corresponding position of the surface of the panel.

Preferably, the portable spraying device, wherein the water pump assembly comprises a water pipe joint, one end of the water pump water outlet joint is connected to the second water outlet of the overflow valve water pump, the other end of the water pump water outlet joint is connected to the liquid inlet end of the spray gun assembly through the water pipe joint, and a water outlet joint sealing ring is arranged at the joint of the water pump water outlet joint and the overflow valve water pump.

Preferably, the portable spraying device, wherein the water pipe joint is fixed at the water outlet joint hole through a U-shaped lock catch, and a water pipe joint sealing ring is arranged at the joint of the water pipe joint and the water outlet joint of the water pump.

Preferably, the portable spraying device, wherein the water tank comprises a water kettle and a water kettle cover plate arranged at the bottom of the water kettle, a water kettle cover plate sealing ring is arranged at the joint of the water kettle cover plate and the water kettle, a water kettle top cover is arranged at the top of the water kettle, a water kettle top cover sealing ring is arranged in the water kettle top cover, a vent valve is arranged on the water kettle top cover, and a vent valve sealing ring is arranged at the joint of the vent valve and the water kettle top cover; and/or a water tank positioning connecting part is arranged in the battery pack shell or the water tank shell, a water tank positioning bearing part is arranged on the back of the water kettle, the water tank is connected to the water tank positioning connecting part through the water tank positioning bearing part, and/or capacity scale marks are arranged on the surface of the water kettle; and/or the capacity of the kettle is not more than 10L.

Preferably, in the portable spraying device, a first positioning element and a second positioning element are respectively arranged on two sides of a joint of the battery pack case and the water tank case, a first positioning matching element and a second positioning matching element are respectively arranged on two sides of a joint of the water tank case and the battery pack case, and the first positioning matching element and the second positioning matching element are respectively corresponding to and connected with the first positioning element and the second positioning element; and/or a water pump positioning part is arranged in the battery pack shell or the water tank shell, a positioning seat is arranged on the water pump, and the water pump is connected to the water pump positioning part through the positioning seat.

Preferably, the portable spraying device further comprises a second handle connecting part which is connected with the battery pack housing and is provided with a handle decorating part, and the second handle connecting part is connected with the battery pack housing and is provided with a second handle connecting part which is connected with the battery pack housing and is provided with a second handle connecting part.

Preferably, the portable spraying device, wherein the waist-crossing belt comprises a belt body, one end of the belt body extends to form a left belt and a right belt, and the left belt and the right belt are connected through a waist-carrying belt adjustable buckle to form a waist-carrying belt for adjusting the tightness of the waist-carrying belt; and/or a storage bag for storing articles is arranged on the waist belt.

Compared with the prior art, the implementation of the invention achieves the following obvious technical effects:

the portable atomizer of present case is through setting up the water tank shell that is used for the holding water tank, the holding battery package, the battery package shell of battery insertion frame, and battery package shell forms a water pump after being connected with water tank shell and holds the chamber, rationally with the battery package subassembly, the water tank subassembly, the water pump subassembly sets up the cavity in the difference respectively, make electrified part and water keep apart, and the three keeps apart each other, and the relative position sets up rationally, the water pump sets up between water tank and battery package, the electric wire, the reservation hole site has all correspondingly been kept to water pump delivery port joint, high durability and convenient installation, the potential safety hazard has been got rid of, stride the waist braces, do not need squat down just can directly lift portable atomizer, fix at the waist, and is simple and labor-saving, and convenient for operation, thus very big promotion user's comfort, experience is felt.

The concept, specific mold cavity and resulting technical effects of the present invention will be further described in the following with reference to the accompanying drawings to fully understand the objects, features and effects of the present invention.

Drawings

Fig. 1 is a schematic structural diagram of a portable spraying device according to an embodiment of the present invention.

Fig. 2 is a schematic view of a spray gun assembly in a portable spraying device according to an embodiment of the present invention.

Detailed Description

The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.

It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the drawings only show the components related to the present invention rather than the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated.

As shown in fig. 1, the present application provides a portable spraying device, which comprises a waist-crossing strap 1, a battery pack assembly, a water tank assembly, a water pump assembly, a spray gun assembly 100, a rear cover 4 connected to the waist-crossing strap 1, and a front cover 25 arranged opposite to the rear cover 4, wherein a panel 26 covers the front cover 25, the battery pack assembly comprises a battery pack 3, a battery plug rack 18, and a battery pack case 23 for accommodating the battery pack 3 and the battery plug rack 18, the water tank assembly comprises a water tank and a water tank case 11 for accommodating the water tank, the battery pack case 23 is connected with the water tank case 11 to form a water pump accommodating cavity, the battery pack case 23 is connected with the water tank case 11 to be accommodated in an accommodating cavity formed by the rear cover 4 and the front cover 25, the water pump assembly is arranged in the water pump accommodating cavity, the battery pack case 23 is provided with a lead hole for leading out an electric wire from the battery plug rack 18, the water pump assembly comprises a water pump 14, a water pump water suction port connector 15 and a water pump water outlet connector 13, one end of the water pump water suction port connector 15 is connected with the water tank, the other end of the water pump is connected with the water inlet of the water pump 14, an electric wire led out by the battery pack 3 through the battery plug rack 18 is connected with the water pump 14 in series, the water pump water outlet connector 13 is used for discharging water to the liquid inlet end 102 of the spray gun assembly 100, the battery pack shell 23 is connected with the water tank shell 11 to reach the corresponding position on the surface of the panel 26, and a water outlet joint hole used for containing the water pump water outlet connector 13 is formed in the corresponding position on the surface of the panel 26.

The battery pack 3 is connected with the water pump 14 in series through an electric wire led out from the battery inserting frame 18, the battery pack 3 suitable for the water pump 14 can be selected, and preferably, the battery pack can further comprise a voltage reduction pack which is also connected in a series circuit, so that the voltage of the battery pack 3 is reduced and the battery pack is suitable for the water pump 14. The pressure reducing bag is connected through an electric wire and can be contained in a pressure reducing bag containing cavity arranged at the bottom of the water pump containing cavity.

The water pump water outlet connector 13 is used for discharging water to the liquid inlet end 102 of the spray gun assembly 100, the water pump water outlet connector 13 can be connected to the liquid inlet end 102 of the spray gun assembly 100 through a water pipe, one end of the water pipe is connected to the water pump water outlet connector 13 in a threaded connection mode, the other end of the water pipe is connected to the liquid inlet end 102 of the spray gun assembly 100 through threads, and the water outlet of the water pump 14 can smoothly reach the liquid inlet end 102 of the spray gun assembly 100.

As shown in fig. 2, the spray gun assembly 100 is preferably a sanitizing electrostatic spray assembly, comprising: a sterilizing assembly; the integrated circuit board is arranged on the upper middle part of the disinfecting assembly and is used for controlling the work of the disinfecting electrostatic spraying assembly; the electrostatic module is arranged on one side of the lower part of the disinfecting assembly and is communicated with the integrated circuit board circuit, and when the electrostatic module works, fog drops can be excited and electrified, so that the fog drops are thinner, and dead-angle-free package-copy adsorption is carried out on a target object when the disinfecting electrostatic spraying assembly works. The static module is electrically connected in series with a static switch, the static switch controls the static module, an induction coil in the disinfection component is electrically connected with the static module to distribute static electricity on the induction coil, the axial flow fan, the fan switch and the resistor are electrically connected in series, and the fan switch controls the power of the axial flow fan through the resistor. The disinfecting assembly comprises: the fog drop spray head is arranged at the front end of the disinfection component; the induction coil is arranged on one side of the fog drop spray head; the silica gel sleeve is fixed at the head part of the silica gel sleeve; the front cover 25, the fog drop spray head, the induction coil and the silica gel sleeve are arranged in the front cover 25; one end of the air pipe is arranged at the rear end of the front cover 25, and the fog drop spray head is arranged on the axis of the air pipe; the other end of the air pipe is fixedly connected with the axial flow fan, the air outlet side of the axial flow fan is embedded into the cavity of the air pipe, and the air inlet side of the axial flow fan is embedded into the cavity arranged on the shell; the communication joint below the axial flow fan is connected with one end of the water pipe; the other end of the water pipe is connected with the water receiving pipe guide pipe of the water inlet quick connection. Furthermore, the induction coil is fixed on the head of the silica gel sleeve, and the front end of the fog drop nozzle is arranged on the other side of the silica gel sleeve.

The static module is electrically connected with the driving plate after being connected with a power supply, so that sprayed droplets can be excited to be charged, the droplets are thinner, the utilization rate of liquid medicine is improved, the induction coil is electrically connected with the static module, the static electricity is distributed on the induction coil, the voltage in the water tank can be stabilized while the static electricity is induced by the electricity storage module through spraying, electric energy can be slowly released, the stability of the charged quantity is ensured, the use safety is improved, the electricity storage module stores the static electricity, the high-voltage induction coil sucks out the static electricity of the electricity storage module, the static electricity is sprayed together with disinfectant, and the fog droplets can be conveyed to a longer distance by matching with the axial flow fan.

The portable atomizer of present case is through setting up the battery package shell 23 that is used for the water tank shell 11 of holding water tank, holding battery package 3, battery plug rack 18, and battery package shell 23 forms a water pump after being connected with water tank shell 11 and holds the chamber, it is reasonable to set up battery package subassembly, water tank subassembly, water pump subassembly at different cavitys respectively, make electrified part and water keep apart, and the three keeps apart each other, and the relative position sets up rationally, water pump 14 sets up between water tank and battery package 3, the electric wire, water pump delivery port joint 13 all corresponding reservation hole sites of having remain, high durability and convenient installation, the potential safety hazard has been got rid of, stride waist braces 1, do not need squat down just can directly lift portable atomizer, fix at the waist, and is simple and labor-saving, and convenient operation, thus, user's comfort has greatly been promoted, experience is felt.

Preferably, in the portable spraying device, a transparent cover 22 for closing the battery pack 3 is disposed on a surface of the battery pack case 23 away from the water tank case 11, one end of the transparent cover 22 is connected to the water tank case 11 through a connecting shaft 34, and the other end of the transparent cover is connected to the water tank case 11 through a latch panel 20 in a rotatable opening and closing manner, and the latch panel 20 includes a metal latch 17; a circle of groove is formed in the inner side of the transparent cover 22, and a transparent cover sealing gasket 19 is arranged in the groove; and/or a first anti-leakage blocking device is arranged at the lead hole, so that the waterproof effect is achieved.

One end of the transparent cover 22 is connected to the water tank shell 11 through a connecting shaft 34, and the other end is connected to the water tank shell 11 through a hasp panel 20 in a rotatable opening and closing mode, so that the transparent cover 22 can be opened at any time, and the battery pack 3 can be taken down to charge or overhaul the battery pack assembly. The metal hasp 17 is locked by a micro switch fixing shaft 21, and is a locking device, and the hasp panel 20 can be locked on the water tank shell 11 and is not easy to loosen. The transparent cover 22 is for convenience in viewing the inside of the battery pack assembly. The inner side of the transparent cover 22 is provided with a circle of groove, and the groove is internally provided with a transparent cover sealing gasket 19 so as to prevent liquid from entering the battery pack assembly and play a role of water prevention. The lead hole is provided with a first anti-leakage blocking device, and the first anti-leakage blocking device is also used for preventing water, so that the dryness and the tightness of the battery pack assembly are ensured.

Preferably, the portable spraying device, wherein the water pump assembly comprises a corner joint 12, one end of the water pump water suction port joint 15 is connected with a water outlet hole of the water tank through the corner joint 12, and a water suction port joint sealing ring 35 is arranged at the connection part of the water pump water suction port joint 15 and the water pump; the water pump 14 is an overflow valve water pump, the water pump component comprises an overflow nozzle, one end of the overflow nozzle is connected with a first water outlet of the overflow valve water pump, the other end of the overflow nozzle is connected with a water return hole of the water tank, and an overflow nozzle sealing ring 30 is arranged at the connection position; and/or the water tank shell 11 is provided with water tank shell 11 openings for passing through water outlet holes and water return holes of the water tank; and/or a second anti-leakage blocking device is arranged at the opening of the water tank shell 11.

The water pump assembly comprises a corner joint 12, one end of a water pump water suction port joint 15 is connected with a water outlet hole of the water tank through the corner joint 12, the corner joint 12 is convenient for connection between the water pump water suction port joint 15 and the water outlet hole of the water tank, and a water leakage is guaranteed by a water suction port joint sealing ring 35. The overflow valve water pump is namely a water pump with an overflow function, the water pump component comprises an overflow nozzle, namely the overflow valve water pump is provided with two water outlets which are respectively provided with two water outlet directions, a water outlet hole is added on the water pump 14, one added water outlet is connected to a water return hole of the water tank through the overflow nozzle, and the other water outlet is connected with a water outlet joint 13 of the water pump; the overflow nozzle is connected to the water return hole of the water tank, and is used for providing a stirring function for liquid in the kettle and ventilating so that the liquid can be sprayed out more quickly. Be equipped with on water tank shell 11 and be used for the break-through 11 trompils of the apopore of water tank, return water hole, the 11 trompils of water tank shell of reservation are convenient for connecting device such as corner joint 12 and pass, and the trompil intercommunication on the water tank, 11 trompils departments of water tank shell are equipped with second leak protection blocking device, prevent that liquid from entering into the water pump and hold the intracavity, ensure electrified part contactless liquid.

Preferably, the portable spraying device further comprises a three-core connection terminal 27 and a switch 24, wherein the battery pack 3 is connected in series with the water pump 14, the three-core connection terminal 27 and the switch 24 through wires led out from the battery inserting frame 18; the three-core connecting terminal 27 is used for connecting the power supply end 101 of the spray gun assembly 100, and a switch hole for accommodating the switch 24 and a connecting terminal hole for accommodating the three-core connecting terminal 27 are respectively arranged at the connecting position of the battery pack shell 23 and the water tank shell 11 and the corresponding position on the surface of the panel 26.

The switch 24 is for controlling the portable spraying device to work or stop working, the three-core connecting terminal 27 is for supplying power to the spray gun assembly 100, the electric wire led out from the battery pack 3 through the battery inserting frame 18 is connected with the water pump 14, the three-core connecting terminal 27 and the switch 24 in series, when the switch 24 is closed, the three-core connecting terminal 27 is electrified, so that the power can be supplied to the spray gun assembly 100 while the water pump is supplied by the battery pack 3, that is, the spray gun assembly 100 does not need to be electrified, the spray gun assembly 100 is miniaturized and lightened, and the electric component of the spray gun assembly 100 can work normally only by connecting an electric wire connector with the three-core connecting terminal 27. The three-core connecting terminal 27 can be externally provided with a terminal screw cap, so that the three-core connecting terminal 27 is protected when the three-core connecting terminal does not work. The battery pack shell 23 is connected with the water tank shell 11, and the corresponding position of the surface of the panel 26 is respectively provided with a switch hole for accommodating the switch 24 and a connecting wire hole for accommodating the three-core connecting wire 27, so that the assembly is convenient, and the appearance is more attractive.

Preferably, the water pump assembly comprises a water pipe connector 28, the water pipe connector 28 may be a water pipe thread connector, one end of the water pump water outlet connector 13 is connected to the second water outlet of the overflow valve water pump, the other end of the water pump water outlet connector is connected to the liquid inlet end 102 of the spray gun assembly 100 through the water pipe connector 28, and a water outlet connector sealing ring 32 is arranged at the connection position of the water pump water outlet connector 13 and the overflow valve water pump.

And one end of the water outlet connector 13 of the water pump is connected to the second water outlet of the overflow valve water pump, and the other end of the water outlet connector is connected to the liquid inlet end 102 of the spray gun assembly 100 through the water pipe connector 28, so that the water pipe connector 28 has a switching function and is convenient to assemble and connect. And a water outlet joint sealing ring 32 is arranged at the joint of the water outlet joint 13 of the water pump and the water pump of the overflow valve, so that the sealing and waterproof effects are achieved. And a water pipe joint sealing ring 31 is arranged at the joint of the water pipe joint 28 and the water outlet joint 13 of the water pump.

Preferably, the portable spraying device, wherein the water pipe connector 28 is fixed at the water outlet connector hole through a U-shaped lock catch 29, and a water pipe connector 28 sealing ring is arranged at the joint of the water pipe connector 28 and the water pump water outlet connector 13, which also plays a role in sealing and water proofing.

Preferably, the portable spraying device is characterized in that the water tank comprises a water kettle 7 and a water kettle cover plate 10 arranged at the bottom of the water kettle 7, a water kettle cover plate 10 sealing ring 9 is arranged at the joint of the water kettle cover plate 10 and the water kettle 7 to enhance the sealing performance and prevent water, a water kettle top cover 5 is arranged at the top of the water kettle 7, a water kettle top cover sealing ring 7 is arranged in the water kettle top cover 5, a vent valve is arranged on the water kettle top cover 5, and a vent valve sealing ring 6 is arranged at the joint of the vent valve and the water kettle top cover 5; the vent valve is beneficial to pressurization, and the sealing ring 6 of the vent valve further strengthens the sealing function. Furthermore, a filter screen 16 is arranged on the kettle cover plate 10, and the filter screen 16 can filter out impurities in liquid in the kettle.

Further, a water tank positioning connecting part is arranged in the battery pack shell 23 or the water tank shell 11, a water tank positioning bearing part is arranged on the back of the water kettle, and the water tank is connected to the water tank positioning connecting part through the water tank positioning bearing part; the water tank location receiving portion and the setting of water tank location connecting portion, very big simplification the installation, both connect the back, and the part reinforcement such as rethread screw can.

Furthermore, the surface of the kettle is provided with capacity scale marks, so that the residual water level can be observed conveniently, water can be added into the liquid medicine conveniently, and the proportion of the liquid medicine can be controlled.

Further, the capacity of the kettle is not more than 10L, preferably 1L, the most convenient miniaturization and light weight are realized, and 1L is the best embodiment.

Preferably, in the portable spraying device, a first positioning member and a second positioning member are respectively arranged on two sides of a joint of the battery pack case 23 and the water tank case 11, a first positioning fitting member and a second positioning fitting member are respectively arranged on two sides of a joint of the water tank case 11 and the battery pack case 23, and the first positioning fitting member and the second positioning fitting member correspond to and are connected to the first positioning member and the second positioning member respectively; the first positioning piece, the second positioning piece, the first positioning fitting piece and the second positioning fitting piece are arranged, the installation process is greatly simplified, and after the first positioning piece and the second positioning fitting piece are connected, the first positioning piece and the second positioning fitting piece can be reinforced through parts such as screws.

Furthermore, a water pump positioning part is arranged in the battery pack shell 23 or the water tank shell 11, a positioning seat is arranged on the water pump 14, and the water pump 14 is connected to the water pump positioning part through the positioning seat. The positioning seat is connected with the water pump positioning part, so that the installation process is simplified, and after the positioning seat and the water pump positioning part are connected, the water pump positioning part is reinforced through parts such as screws.

Preferably, the portable spraying device, wherein a first handle connecting part is provided on the top of the battery pack case 23, a second handle connecting part is provided on the top of the water tank case 11, the first handle connecting part is engaged with the second handle connecting part to form a handle part, and a handle decorating part 2 is provided outside the handle part. The first handle connecting part and the second handle connecting part are matched, so that the mounting process is simplified, and the first handle connecting part and the second handle connecting part are reinforced through parts such as screws after being connected. The handle member is for facilitating lifting of the spraying device.

Preferably, the portable spraying device, wherein the waist-crossing brace 1 comprises a brace body, one end of the brace body extends to form a left waistband and a right waistband, and the left waistband and the right waistband are connected through a waist-carrying belt adjustable buckle to form a waist-carrying belt for adjusting the tightness of the waist-carrying belt; the adjustable elasticity of detaining of the area is adjustable to the waist of utilizing, if the elasticity of the area is born to the waist of needs adjustment, the one hand can be operated length and adjust the elasticity of the area is born to the waist of detaining the department, is applicable to different fat thin users.

Preferably, the harness body may be provided with a hard support layer, a soft intermediate layer, and a mesh-like breathable layer. The hard supporting layer plays a shaping role, the hard supporting layer can be made of PVC plates, the soft middle layer enables the close-fitting part to be soft, breathable sponge can be generally selected, the net-shaped breathable layer is made of polyester fiber materials, and the breathability is good.

Furthermore, the waist belt is provided with a storage bag for storing articles, gloves, small tools and the like can be placed, and better convenience is brought.

The foregoing description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by those skilled in the art that the scope of the disclosure herein is not limited to the particular combination of features described above, but also encompasses other arrangements formed by any combination of the above features or their equivalents without departing from the spirit of the disclosure. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.

The foregoing examples are illustrative only of the principles and efficacy of the invention, and are not intended to be limiting. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims (10)

1. A portable spraying device is characterized by comprising a waist-crossing strap, a battery pack assembly, a water tank assembly, a water pump assembly, a spray gun assembly and a rear cover connected to the waist-crossing strap and a front cover arranged opposite to the rear cover, wherein the front cover is covered with a panel, the battery pack assembly comprises a battery pack, a battery inserting frame and a battery pack shell for containing the battery pack and the battery inserting frame, the water tank assembly comprises a water tank and a water tank shell for containing the water tank, the battery pack shell is connected with the water tank shell to form a water pump containing cavity, the battery pack shell is connected with the water tank shell and then contained in a containing cavity formed by the rear cover and the front cover, the water pump assembly is arranged in the water pump containing cavity, the battery pack shell is provided with a lead hole for leading out an electric wire from the battery inserting frame, the water pump assembly comprises a water pump, a water pump water suction port connector and a water pump water outlet connector, one end of the water pump water suction port connector is connected with the water tank, the other end of the water pump is connected with the water inlet of the water pump, the battery pack is connected with the water tank shell to form an electric wire which is led out through the battery plug frame, the water pump water outlet connector is used for discharging water to the liquid inlet end of the spray gun assembly, the battery pack shell is connected with the water tank shell to reach the corresponding position on the surface of the panel, and the water pump water outlet connector is used for accommodating the water pump water outlet connector.

2. The portable spraying device of claim 1, wherein a transparent cover for closing the battery pack is disposed on a side of the battery pack housing away from the water tank housing, and one end of the transparent cover is rotatably connected to the water tank housing via a connecting shaft and the other end of the transparent cover is rotatably opened and closed via a snap panel, and the snap panel comprises a metal snap; a circle of groove is formed in the inner side of the transparent cover, and a transparent cover sealing gasket is arranged in the groove; and/or a first anti-leakage blocking device is arranged at the lead hole.

3. The portable spraying device of claim 1, wherein the water pump assembly comprises a corner joint, one end of the water pump water suction port joint is connected with the water outlet hole of the water tank through the corner joint, and a water suction port joint sealing ring is arranged at the connection part of the water pump water suction port joint and the water pump; the water pump is an overflow valve water pump, the water pump assembly comprises an overflow nozzle, one end of the overflow nozzle is connected with a first water outlet of the overflow valve water pump, and the other end of the overflow nozzle is connected with a water return hole of the water tank; and/or the water tank shell is provided with water tank shell openings for penetrating through a water outlet hole and a water return hole of the water tank; and/or a second anti-leakage blocking device is arranged at the opening of the water tank shell.

4. The portable spraying device of claim 1, further comprising a three-core connection terminal and a switch, wherein the battery pack is connected in series with the water pump, the three-core connection terminal and the switch via wires led out from the battery holder; the three-core connecting terminal is used for connecting a power supply end of the spray gun assembly, and a switch hole for accommodating a switch and a connecting wire hole for accommodating the three-core connecting terminal are respectively arranged at the connecting part of the battery pack shell and the water tank shell and the corresponding position of the surface of the panel.

5. The portable spraying device of claim 3, wherein the water pump assembly comprises a water pipe connector, one end of the water pump water outlet connector is connected to the second water outlet of the overflow valve water pump, the other end of the water pump water outlet connector is connected with the liquid inlet end of the spray gun assembly through the water pipe connector, and a water outlet connector sealing ring is arranged at the connection position of the water pump water outlet connector and the overflow valve water pump.

6. The portable spraying device of claim 5, wherein the water pipe connector is fixed at the water outlet connector hole through a U-shaped lock catch, and a water pipe connector sealing ring is arranged at the joint of the water pipe connector and the water outlet connector of the water pump.

7. The portable spraying device of claim 1, wherein the water tank comprises a water kettle, a water kettle cover plate arranged at the bottom of the water kettle, a water kettle cover plate sealing ring is arranged at the joint of the water kettle cover plate and the water kettle, a water kettle top cover is arranged at the top of the water kettle, a water kettle top cover sealing ring is arranged in the water kettle top cover, a vent valve is arranged on the water kettle top cover, and a vent valve sealing ring is arranged at the joint of the vent valve and the water kettle top cover; and/or a water tank positioning connecting part is arranged in the battery pack shell or the water tank shell, a water tank positioning bearing part is arranged on the back of the water kettle, the water tank is connected to the water tank positioning connecting part through the water tank positioning bearing part, and/or capacity scale marks are arranged on the surface of the water kettle; and/or the capacity of the kettle is not more than 10L.

8. The portable spraying device of claim 1, wherein a first positioning member and a second positioning member are respectively disposed on two sides of a connection between the battery pack case and the water tank case, and a first positioning mating member and a second positioning mating member are respectively disposed on two sides of a connection between the water tank case and the battery pack case, and are respectively connected to the first positioning member and the second positioning member; and/or a water pump positioning part is arranged in the battery pack shell or the water tank shell, a positioning seat is arranged on the water pump, and the water pump is connected to the water pump positioning part through the positioning seat.

9. The portable spraying device of claim 1, wherein a first handle connecting part is provided on a top of the battery pack case, a second handle connecting part is provided on a top of the water tank case, the first handle connecting part is engaged with the second handle connecting part to form a handle part, and a handle decorating part is provided on an outer portion of the handle part.

10. The portable spraying device as claimed in claim 1, wherein the waist-spanning belt comprises a belt body, one end of the belt body extends to form a left belt and a right belt, and the left belt and the right belt are connected by a waist-carrying belt adjustable buckle to form a waist-carrying belt for adjusting the tightness of the waist-carrying belt; and/or a storage bag for storing articles is arranged on the waist belt.

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