An electric spray can

Abstract

This utility model discloses an electric spray can, including an electric spray can body. The electric spray can body is equipped with a nozzle, which includes a first structural component, a second structural component, a third structural component, and a spray pipe. The first structural component, the second structural component, the third structural component, and the spray pipe are coaxially arranged. A liquid connecting pipe is provided in the middle of the first structural component, a circular hole is provided in the middle of the second structural component, and a liquid connecting channel is provided in the middle of the third structural component. The rear end of the liquid connecting pipe is connected to the electric spray can body for liquid delivery, the front end of the liquid connecting pipe is connected to the rear end of the liquid connecting channel for liquid delivery, and the front end of the liquid connecting channel is connected to the rear end of the spray pipe for liquid delivery. The front end of the spray pipe passes through the circular hole. This utility model creates a negative pressure environment in the direction of the nozzle's front end, resulting in uniform atomization of the liquid sprayed from the nozzle.

Description

Technical Field

[0001] This utility model relates to the field of electric spray can technology, and in particular to an electric spray can. Background Technology

[0002] In practical applications, current electric spray cans typically use an electric air pump to supply high-pressure air into the liquid tank via an air inlet pipe. This forces the liquid in the tank upwards through the liquid pipe to the nozzle and spray it outwards as a mist under high pressure. However, the atomization of the liquid is not uniform when spraying it outwards from the nozzle of this type of electric spray can. Utility Model Content

[0003] The purpose of this invention is to provide an electric spray can to solve the technical problem that the atomization of liquid is not uniform when the nozzle of the electric spray can sprays liquid outward in the prior art.

[0004] To achieve the above objectives, the present invention provides an electric spray can, comprising an electric spray can body, a nozzle on the electric spray can body, the nozzle comprising a first structural component, a second structural component, a third structural component, and a spray pipe, the first structural component being coaxially arranged with the second structural component, the third structural component, and the spray pipe; a liquid connecting pipe is provided in the middle of the first structural component, a circular hole is provided in the middle of the second structural component, and a liquid connecting channel is provided in the middle of the third structural component; the rear end of the liquid connecting pipe is engaged with the electric spray can body for liquid delivery, the front end of the liquid connecting pipe is engaged with the rear end of the liquid connecting channel for liquid delivery, the front end of the liquid connecting channel is engaged with the rear end of the spray pipe for liquid delivery, and the front end of the spray pipe passes through the... The circular hole is described above, and an annular gap is provided between the spray pipe and the circular hole to allow gas to pass through. The rear end of the third structural component is fitted outside the front end of the liquid connection channel. The third structural component is fitted inside the second structural component, and the rear end of the second structural component is fitted inside the front end of the first structural component. An annular gap is provided behind the third structural component and the second structural component, surrounding the liquid connection pipe. A gas connection pipe is provided at the bottom end of the first structural component. The bottom end of the gas connection pipe is engaged with the electric sprinkler body for gas delivery. An air inlet channel is provided between the outer wall of the third structural component and the inner wall of the second structural component. The gas connection pipe communicates with the annular gap, the air inlet channel and the annular gap in sequence, so that a negative pressure environment can be formed in front of the spray pipe.

[0005] Further, the first structural component includes a first cylinder extending axially along the front and rear, the first cylinder having a first opening at its front end and a first wall at its rear end, the liquid connecting pipe being coaxially disposed in the middle of the first wall; the front end of the liquid connecting pipe protruding into the interior of the first cylinder, the annular gap being located between the outer side of the liquid connecting pipe and the inner side of the first cylinder, the gas connecting pipe extending downward from the bottom end of the first cylinder; an internally threaded assembly cylinder being coaxially disposed on the outer edge of the first opening, the internally threaded assembly cylinder extending forward, the diameter of the internally threaded assembly cylinder being larger than the diameter of the first cylinder, and the front end of the liquid connecting pipe protruding into the interior of the internally threaded assembly cylinder.

[0006] Furthermore, the second structural component includes a second cylinder extending axially in a front-rear direction. The front end of the second cylinder is provided with a second cylinder wall, and the rear end of the second cylinder is provided with a second cylinder opening. The circular hole is coaxially disposed in the middle of the second cylinder wall. The outer edge of the second cylinder opening is provided with a coaxially disposed external threaded assembly cylinder. The external threaded assembly cylinder extends rearward, and the diameter of the external threaded assembly cylinder is larger than the diameter of the second cylinder. The front end of the third structural component extends into the interior of the second cylinder, and the rear end of the third structural component is located inside the external threaded assembly cylinder. The rear end of the external threaded assembly cylinder is fitted inside the internal threaded assembly cylinder and forms a threaded connection.

[0007] Furthermore, the third structural component includes a cylinder extending axially along the front and rear, the liquid connection channel being coaxially disposed in the middle of the cylinder, and a structural assembly cylinder being coaxially disposed on the outer edge of the rear end of the cylinder, the structural assembly cylinder extending rearward, the diameter of the structural assembly cylinder being larger than the diameter of the cylinder; the front end of the cylinder extending into the interior of the second cylinder, the structural assembly cylinder being located inside the externally threaded assembly cylinder, the structural assembly cylinder being sleeved outside the front end of the liquid connection pipe, and the annular gap being located behind the structural assembly cylinder and the externally threaded assembly cylinder.

[0008] Furthermore, there is a converging space between the front end of the cylinder and the second cylindrical wall. The outer circumferential surface of the cylinder is provided with a plurality of straight ventilation slots extending forward and backward, and the plurality of straight ventilation slots are distributed sequentially along the circumferential direction of the cylinder. The outer side of the structural assembly cylinder is provided with a plurality of inclined ventilation slots extending gradually towards the cylinder from back to front, and the plurality of inclined ventilation slots are distributed sequentially along the circumferential direction of the structural assembly cylinder. The plurality of inclined ventilation slots are respectively located behind the plurality of straight ventilation slots, and the inclined ventilation slots and the straight ventilation slots cooperate to form the air intake channel.

[0009] Furthermore, the outer circumferential surface of the front end of the cylinder is in close contact with the inner circumferential surface of the second cylinder, and there is a ventilation space between the outer circumferential surface of the rear end of the cylinder, the outer circumferential surface of the structural assembly cylinder, and the inner circumferential surface of the internally threaded assembly cylinder. The inner circumferential surface of the second cylinder is provided with a rearwardly penetrating air inlet groove, and the plurality of air inlet channels and the air inlet groove are ventilated and cooperate with each other through the ventilation space. The rear end of the air inlet groove passes between the rear end of the structural assembly cylinder and the rear end of the externally threaded assembly cylinder and communicates with the annular gap.

[0010] Furthermore, the outer edge of the rear end of the structural assembly cylinder is provided with two spiral plates and two notches, and the two spiral plates and two notches are alternately distributed along the circumference of the structural assembly cylinder. The inner edge of the rear end of the external thread assembly cylinder is provided with two spiral grooves and two air inlet grooves, and the two spiral grooves and two air inlet grooves are alternately distributed along the circumference of the external thread assembly cylinder. The two spiral plates are respectively assembled with the two spiral grooves, and the two notches are respectively located behind the two air inlet grooves.

[0011] Furthermore, the outer circumferential surface of the rear end of the cylinder is provided with four limiting stops extending forward and backward. The four limiting stops are distributed sequentially along the circumferential direction of the cylinder. The rear ends of the four limiting stops extend backward to the outer circumferential surface of the structural assembly cylinder. The air inlet channel is located between two adjacent limiting stops. The front ends of the four limiting stops are limited and engaged with the inner wall of the front end of the external thread assembly cylinder.

[0012] Furthermore, the inner wall of the second cylinder is conical in shape with a diameter that gradually decreases from back to front, and the front edge of the liquid connection channel has a conical surface with a diameter that gradually increases outward. The rear end of the injection pipe is inserted into the front end of the liquid connection channel. The inner diameter of the liquid connection channel is smaller than the inner diameter of the liquid connection pipe, and there is a transition space between the front end of the liquid connection pipe and the rear end of the liquid connection channel. The rear end of the liquid connection pipe protrudes backward to the outside of the first cylinder wall. The upper front end of the gas connection pipe is connected to the bottom end of the internally threaded assembly cylinder, and the upper rear end of the gas connection pipe has a connecting hole with the bottom of the annular spacer. The connecting hole is inclined from bottom to top and forward.

[0013] Furthermore, the electric sprinkler body has a liquid tank at its bottom and the nozzle at its top. The electric sprinkler body includes a cylindrical shell and an electric air pump, a battery, a feeding pipe, and an air inlet pipe disposed inside the cylindrical shell. The electric air pump is powered by the battery and connected to the bottom of the gas connection pipe. The rear end of the liquid connection pipe is connected to the liquid tank through the feeding pipe. An air inlet structure is provided below the front of the nozzle and is connected to the liquid tank through the air inlet pipe.

[0014] In summary, the technical solution of this utility model has the following beneficial effects: The structural design of this utility model is reasonable. (1) By setting an electric sprinkler body, the electric sprinkler body is provided with a nozzle. The nozzle includes a first structural component, a second structural component, a third structural component, and a spray pipe. The first structural component is coaxially arranged with the second structural component, the third structural component, and the spray pipe. A liquid connecting pipe is provided in the middle of the first structural component, a round hole is provided in the middle of the second structural component, and a liquid connecting channel is provided in the middle of the third structural component. The rear end of the liquid connecting pipe is connected to the electric sprinkler body for liquid material transportation, and the front end of the liquid connecting pipe is connected to the rear end of the liquid connecting channel for liquid material transportation. The liquid connection channel and the rear end of the spray pipe work together to transport liquid. The front end of the spray pipe passes through a circular hole, and there is an annular gap between the spray pipe and the circular hole that allows gas to pass through. When gas is sprayed from the inside to the outside through the annular gap, the gas will create a negative pressure environment in the direction of the front end of the spray pipe. Driven by the negative pressure, the liquid will pass through the electric sprinkler body, the liquid connection pipe, the liquid connection channel, and the spray pipe in sequence to form a mist. Since the structure of the annular gap is uniformly distributed in a ring shape, the negative pressure force on the liquid (i.e., liquid material) is also evenly distributed when the spray pipe sprays out the liquid, and the atomization of the liquid will be uniform. (2) By setting the rear end of the third structural component to fit outside the front end of the liquid connection channel, the third structural component to fit inside the second structural component, and the rear end of the second structural component to fit inside the front end of the first structural component, an annular gap is provided behind the third structural component and the second structural component to form around the liquid connection pipe. A gas connection pipe is provided at the bottom end of the first structural component, and the bottom end of the gas connection pipe is connected to the electric sprinkler body for gas delivery. An air inlet channel is provided between the outer wall of the third structural component and the inner wall of the second structural component. The gas connection pipe is connected to the annular gap through the annular gap and the air inlet channel in sequence, so that a negative pressure environment can be formed in front of the spray pipe. Thus, under the drive of the electric sprinkler body, the gas will pass through the electric sprinkler body, the gas connection pipe, the annular gap, and the air inlet channel in sequence to reach the annular gap, and the gas will be sprayed from the inside to the outside in the annular gap, and a negative pressure environment will be formed in the direction of the front end of the spray pipe. As can be seen from the above analysis, by setting the annular gap, this utility model forms a negative pressure environment in the direction of the front end of the nozzle, so that the liquid sprayed by the nozzle is atomized evenly. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the nozzle of this utility model; Figure 3 This is a three-dimensional structural diagram of the first structural component of this utility model from a first perspective; Figure 4 This is a two-dimensional structural diagram of the first structural component of this utility model from a second perspective; Figure 5 This is a three-dimensional structural diagram of the second structural component of this utility model from a first perspective; Figure 6 This is a three-dimensional structural diagram of the second structural component of this utility model from a second perspective; Figure 7 This is a three-dimensional structural diagram of the third structural component of this utility model from a first perspective. Figure 8 This is a three-dimensional structural diagram of the third structural component of this utility model from a second perspective; Figure 9 This is a three-dimensional structural diagram of the first and third structural components of this utility model when they are combined. Figure 10 This is a three-dimensional structural diagram of the second and third structural components of this utility model when they are combined. Figure 11 This is a cross-sectional structural diagram of the nozzle of this utility model, showing the liquid flow direction and the air flow direction; Figure 12 This is a three-dimensional structural diagram of the present invention when the cylindrical shell is installed; Explanation of reference numerals in the attached drawings: Electric sprinkler body (1), nozzle (2), first structural component (3), second structural component (4), third structural component (5), spray pipe (6), annular gap (7), annular interval (8), air inlet channel (9), converging space (10), ventilation space (11), transition space (12), liquid tank (13), push switch (14), protective cover (15); liquid connection pipe (301), gas connection pipe (302), first cylinder (303), first cylinder opening (304), first cylinder wall (305), internally threaded assembly cylinder (306), connecting hole (307) ; Circular hole (401), second cylinder (402), second cylinder wall (403), second cylinder opening (404), external thread assembly cylinder (405), air inlet groove (406), spiral groove (407); liquid connection channel (501), cylinder (502), structural assembly cylinder (503), straight ventilation groove (504), inclined ventilation groove (505), spiral plate (506), notch (507), limit stop bar (508); cylindrical shell (101), electric air pump (102), battery (103), feeding pipe (104), air inlet pipe (105), air inlet structure (106). Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model, but this does not constitute a limitation on the scope of protection of the present utility model.

[0017] In this utility model, for clearer description, the following explanation is provided: The observer faces the attached... Figure 1 In this observation, the left side of the observer is designated as front, the right side as rear, the front of the observer as right, the rear of the observer as left, the top of the observer as up, and the bottom of the observer as down. It should be noted that the terms "front end," "rear end," "left side," "right side," "middle," "above," and "below" used in this document indicate the orientation or positional relationship based on the accompanying drawings. These are merely for the purpose of clearly describing the present invention and do not indicate or imply that the structure or component referred to must have a specific orientation or be constructed in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," "third," and "fourth" are used only for the purpose of clarity or simplification of description and should not be construed as indicating or implying relative importance or quantity.

[0018] See Figures 1 to 12This embodiment provides an electric spray can, including an electric spray can body 1. The electric spray can body 1 is equipped with a nozzle 2. The nozzle 2 includes a first structural component 3, a second structural component 4, a third structural component 5, and a spray pipe 6. The first structural component 3, the second structural component 4, the third structural component 5, and the spray pipe 6 are coaxially arranged. A liquid connecting pipe 301 is provided in the middle of the first structural component 3. A circular hole 401 is provided in the middle of the second structural component 4. A liquid connecting channel 501 is provided in the middle of the third structural component 5. The rear end of the liquid connecting pipe 301 is connected to the electric spray can body 1 for liquid delivery. The front end of the liquid connecting pipe 301 is connected to the rear end of the liquid connecting channel 501 for liquid delivery. The front end of the liquid connecting channel 501 is connected to the rear end of the spray pipe 6 for liquid delivery. The front end of the spray pipe 6 passes through the circular hole 401. 1. There is an annular gap 7 between the spray pipe 6 and the circular hole 401, which allows gas to pass through; the rear end of the third structural component 5 is sleeved outside the front end of the liquid connection channel 501, the third structural component 5 is sleeved inside the second structural component 4, the rear end of the second structural component 4 is sleeved inside the front end of the first structural component 3, and an annular interval 8 is provided behind the third structural component 5 and the second structural component 4, which surrounds the liquid connection pipe 301. The bottom end of the first structural component 3 is provided with a gas connection pipe 302, and the bottom end of the gas connection pipe 302 is connected to the electric sprinkler body 1 for gas delivery. An air inlet channel 9 is provided between the outer wall of the third structural component 5 and the inner wall of the second structural component 4. The gas connection pipe 302 is connected to the annular gap 7 through the annular interval 8 and the air inlet channel 9 in sequence, so that a negative pressure environment can be formed in front of the spray pipe 6. Function: (1) By setting up an electric sprinkler body, the electric sprinkler body is equipped with a nozzle, the nozzle includes a first structural component, a second structural component, a third structural component, and a spray pipe. The first structural component, the second structural component, the third structural component, and the spray pipe are coaxially arranged; the first structural component has a liquid connection pipe in the middle, the second structural component has a round hole in the middle, and the third structural component has a liquid connection channel in the middle. The rear end of the liquid connection pipe is connected to the electric sprinkler body for liquid material transportation, the front end of the liquid connection pipe is connected to the rear end of the liquid connection channel for liquid material transportation, and the front end of the liquid connection channel is connected to the rear end of the spray pipe for liquid material transportation. The liquid material is transported in conjunction with the nozzle. The front end of the nozzle passes through a circular hole, and there is an annular gap between the nozzle and the circular hole that allows gas to pass through. When gas is sprayed from the inside to the outside through the annular gap, the gas will create a negative pressure environment at the front end of the nozzle. Driven by the negative pressure, the liquid material will pass through the electric sprinkler body, the liquid connection pipe, the liquid connection channel, and the nozzle in sequence to form a mist. Since the structure of the annular gap is uniformly distributed in a ring shape, the negative pressure force on the liquid material (i.e., liquid material) is also uniformly distributed when the nozzle sprays the liquid material outward, and the atomization of the liquid material will be uniform.(2) By setting the rear end of the third structural component to fit outside the front end of the liquid connection channel, the third structural component to fit inside the second structural component, and the rear end of the second structural component to fit inside the front end of the first structural component, an annular gap is provided behind the third structural component and the second structural component to form around the liquid connection pipe. A gas connection pipe is provided at the bottom end of the first structural component, and the bottom end of the gas connection pipe is connected to the electric sprinkler body for gas delivery. An air inlet channel is provided between the outer wall of the third structural component and the inner wall of the second structural component. The gas connection pipe is connected to the annular gap through the annular gap and the air inlet channel in sequence, so that a negative pressure environment can be formed in front of the spray pipe. Thus, under the drive of the electric sprinkler body, the gas will pass through the electric sprinkler body, the gas connection pipe, the annular gap, and the air inlet channel in sequence to reach the annular gap, and the gas will be sprayed from the inside to the outside in the annular gap, and a negative pressure environment will be formed in the direction of the front end of the spray pipe. As can be seen from the above analysis, by setting the annular gap, this utility model forms a negative pressure environment in the direction of the front end of the nozzle, so that the liquid sprayed by the nozzle is atomized evenly.

[0019] Specifically, the first structural component 3 includes a first cylinder 303 extending axially back and forth. The front end of the first cylinder 303 is provided with a first cylinder opening 304, and the rear end of the first cylinder 303 is provided with a first cylinder wall 305. A liquid connecting pipe 301 is coaxially arranged in the middle of the first cylinder wall 305. The front end of the liquid connecting pipe 301 protrudes into the interior of the first cylinder 303. An annular gap 8 is located between the outer side of the liquid connecting pipe 301 and the inner side of the first cylinder 303. A gas connecting pipe 302 extends downward from the bottom end of the first cylinder 303. An internally threaded assembly cylinder 306 is coaxially arranged on the outer edge of the first cylinder opening 304. The internally threaded assembly cylinder 306 extends forward. The diameter of the internally threaded assembly cylinder 306 is larger than the diameter of the first cylinder 303. The front end of the liquid connecting pipe 301 protrudes into the interior of the internally threaded assembly cylinder 306. Function: The specific structure of the first structural component 3 is set here, so that the gas connecting pipe 302 can be connected to the annular spacer 8 at the bottom of the first cylinder 303 by utilizing the annular spacer 8; the front end of the liquid connecting pipe 301 can also be protruded into the internal thread assembly cylinder 306, so that the liquid connecting pipe 301 and the third structural component 5 are connected, and the internal thread assembly cylinder 306 and the second structural component 4 are connected.

[0020] Specifically, the second structural component 4 includes a second cylinder 402 extending axially in the front and rear directions. The front end of the second cylinder 402 is provided with a second cylinder wall 403, and the rear end of the second cylinder 402 is provided with a second cylinder opening 404. A circular hole 401 is coaxially disposed in the middle of the second cylinder wall 403. An externally threaded assembly cylinder 405 is coaxially disposed on the outer edge of the second cylinder opening 404. The externally threaded assembly cylinder 405 extends rearward, and the diameter of the externally threaded assembly cylinder 405 is larger than the diameter of the second cylinder 402. The front end of the third structural component 5 extends into the interior of the second cylinder 402, and the rear end of the third structural component 5 is located inside the externally threaded assembly cylinder 405. The rear end of the externally threaded assembly cylinder 405 is fitted inside the internally threaded assembly cylinder 306 and forms a threaded connection. Function: The specific structure of the second structural component 4 is set here, so that the second cylinder 402 can cooperate with the front end of the third structural component 5, while the rear end of the third structural component 5 can be placed inside the external thread assembly cylinder 405. At the same time, the external thread assembly cylinder 405 can also be threadedly connected with the internal thread assembly cylinder 306, so that the second structural component 4 and the third structural component 5 can be disassembled and replaced together, while the first structural component 3 remains unchanged.

[0021] Specifically, the third structural component 5 includes a cylinder 502 extending axially along the front and rear sides. A liquid connection channel 501 is coaxially disposed in the middle of the cylinder 502. A structural assembly cylinder 503 is coaxially disposed on the outer edge of the rear end of the cylinder 502. The structural assembly cylinder 503 extends rearward, and its diameter is larger than that of the cylinder 502. The front end of the cylinder 502 extends into the interior of the second cylinder 402. The structural assembly cylinder 503 is located inside the externally threaded assembly cylinder 405. The structural assembly cylinder 503 is sleeved on the outside of the front end of the liquid connection pipe 301. An annular gap 8 is located behind the structural assembly cylinder 503 and the externally threaded assembly cylinder 405. Function: The specific structure of the third structural component 5 is designed so that the front end of the cylinder 502 can fit into the interior of the second cylinder 402, while the rear end of the cylinder 502 and the structural assembly cylinder 503 can be placed inside the externally threaded assembly cylinder 405, thereby achieving the connection between the structural assembly cylinder 503 and the front end of the liquid connection pipe 301.

[0022] Specifically, a converging space 10 is provided between the front end of the cylinder 502 and the second cylinder wall 403. The outer circumferential surface of the cylinder 502 is provided with several straight ventilation slots 504 extending forward and backward, and these slots are distributed sequentially along the circumference of the cylinder 502. The outer surface of the structural assembly cylinder 503 is provided with several inclined ventilation slots 505 extending gradually from back to front towards the cylinder 502, and these slots are distributed sequentially along the circumference of the structural assembly cylinder 503. The inclined ventilation slots 505 are respectively located behind the straight ventilation slots 504, and the inclined ventilation slots 505 and straight ventilation slots 504 cooperate to form an air inlet channel 9. Function: The converging space 10 facilitates the convergence of air discharged from the straight ventilation slots 504 and its outward spray from the annular gap; the even distribution through the air inlet channels 9 ensures a more balanced gas distribution and more efficient transport during the transport phase.

[0023] Specifically, the outer circumferential surface of the front end of the cylinder 502 is in close contact with the inner circumferential surface of the second cylinder 402. A ventilation space 11 exists between the outer circumferential surface of the rear end of the cylinder 502, the outer circumferential surface of the structural assembly cylinder 503, and the inner circumferential surface of the internally threaded assembly cylinder 306. The inner circumferential surface of the second cylinder 402 is provided with a rearwardly penetrating air inlet groove 406. Several air inlet channels 9 are ventilated and coordinated with the air inlet groove 406 through the ventilation space 11. The rear end of the air inlet groove 406 passes between the rear end of the structural assembly cylinder 503 and the rear end of the externally threaded assembly cylinder 405 and communicates with the annular gap 8. Function: Gas in the annular gap 8 can enter the ventilation space 11 from the air inlet groove 406, and then be distributed to several air inlet channels 9 using the ventilation space 11. Finally, the gas reaches the annular gap through the inclined ventilation groove 505, the straight ventilation groove 504, and the converging space 10 of the air inlet channel 9, and is then ejected outwards.

[0024] Specifically, the outer edge of the rear end of the structural assembly cylinder 503 is provided with two spiral plates 506 and two notches 507, which are alternately distributed along the circumference of the structural assembly cylinder 503. The inner edge of the rear end of the external thread assembly cylinder 405 is provided with two spiral grooves 407 and two air inlets 406, which are alternately distributed along the circumference of the external thread assembly cylinder 405. The two spiral plates 506 are respectively assembled with the two spiral grooves 407, and the two notches 507 are respectively located behind the two air inlets 406. Function: The structural assembly cylinder 503 and the external thread assembly cylinder 405 are assembled together by the spiral plates 506 and the spiral grooves 407 to achieve radial and axial limiting, and also to make the second structural component 4 and the third structural component 5 form a whole, which is convenient for replacement together. The air inlets 406 are connected to the annular gap 8 through the notches 507.

[0025] Specifically, the outer circumferential surface of the rear end of the cylinder 502 is provided with four limiting rods 508 extending forward and backward. The four limiting rods 508 are distributed sequentially along the circumferential direction of the cylinder 502, and the rear ends of the four limiting rods 508 extend backward to the outer circumferential surface of the structural assembly cylinder 503. The air inlet channel 9 is located between two adjacent limiting rods 508, and the front ends of the four limiting rods 508 are in a limiting engagement with the inner wall of the front end of the external thread assembly cylinder 405. Function: By limiting the movement of the third structural component 5 into the second structural component 4 through the limiting engagement of the limiting rods 508 with the inner wall of the front end of the external thread assembly cylinder 405, the axial movement of the third structural component 5 is restricted, thereby achieving further axial limitation. Of course, the limiting rods 508 are only used for limiting and will not cause blockage of the air inlet of the air duct 406.

[0026] Specifically, the inner wall of the second cylinder wall 403 is a cone shape with a diameter that gradually decreases from back to front. The front edge of the liquid connection channel 501 is provided with a conical surface with a diameter that gradually increases outward. The rear end of the injection pipe 6 is inserted into the front end of the liquid connection channel 501. The inner diameter of the liquid connection channel 501 is smaller than the inner diameter of the liquid connection pipe 301. There is a transition space 12 between the front end of the liquid connection pipe 301 and the rear end of the liquid connection channel 501. The rear end of the liquid connection pipe 301 protrudes backward to the outside of the first cylinder wall 305. The upper front end of the gas connection pipe 302 is connected to the bottom end of the internal thread assembly cylinder 306. The upper rear end of the gas connection pipe 302 has a connecting hole 307 at the bottom of the annular gap 8. The connecting hole 307 is inclined forward from bottom to top. Functions: The conical shape allows the gas on the inner side of the second cylinder wall 403 to gather forward, while the front edge of the liquid connection channel 501 on the conical surface facilitates the installation of the spray pipe; the transition space 12 facilitates the transition and transportation of liquid materials, the rear end of the liquid connection pipe 301 protrudes backward to facilitate connection with the external electric spray tank body, and the connecting hole 307 is inclined forward and upward to facilitate the forward movement of gas.

[0027] Specifically, the electric sprinkler body 1 has a liquid tank 13 at its bottom and a nozzle 2 at its top. The electric sprinkler body 1 includes a cylindrical housing 101 and an electric air pump 102, a battery 103, a feeding pipe 104, and an air inlet pipe 105 housed inside the cylindrical housing 101. The electric air pump 102 is powered by the battery 103 and connected to the bottom of a gas connection pipe 302. The rear end of the liquid connection pipe 301 is connected to the liquid tank 13 via the feeding pipe 104. An air inlet structure 106 is located below the front of the nozzle 2 and is connected to the liquid tank 13 via the air inlet pipe 105. Functions: The electric air pump 102 provides high-pressure gas to the gas connection pipe 302, while the feeding pipe 104 transports the liquid from the liquid tank 13 to the liquid connection pipe 301. The cylindrical housing 101 provides protection. Of course, depending on different actual needs, a push-button switch 14 can be set to make the nozzle spray outwards, or a protective cover 15 can be set to protect the nozzle and air intake structure 106 (such as the air inlet) when spraying is not needed. Other structures, such as the control board and charging port, are conventional designs. However, by setting the nozzle 2 to the side or upwards relative to the electric sprinkler body 1, a side-spray electric spray can be formed or a direct-spray electric spray can be formed, depending on the actual needs. These will not be described in detail here.

[0028] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. An electric spray can comprising an electric spray can body (1), characterized in that: The electric sprinkler body (1) is provided with a nozzle (2), which includes a first structural component (3), a second structural component (4), a third structural component (5), and a spray pipe (6). The first structural component (3), the second structural component (4), the third structural component (5), and the spray pipe (6) are coaxially arranged. A liquid connecting pipe (301) is provided in the middle of the first structural component (3), a circular hole (401) is provided in the middle of the second structural component (4), and a liquid connecting channel (501) is provided in the middle of the third structural component (5). The rear end of the liquid connecting pipe (301) is connected to the electric sprinkler body (1) for liquid delivery, the front end of the liquid connecting pipe (301) is connected to the rear end of the liquid connecting channel (501) for liquid delivery, the front end of the liquid connecting channel (501) is connected to the rear end of the spray pipe (6) for liquid delivery, and the front end of the spray pipe (6) passes through the circular hole (401). The spray pipe (6) and the circular hole... There is an annular gap (7) between (401) for gas to pass through; the rear end of the third structural member (5) is sleeved outside the front end of the liquid connection channel (501), the third structural member (5) is sleeved inside the second structural member (4), the rear end of the second structural member (4) is sleeved inside the front end of the first structural member (3), an annular gap (8) is provided behind the third structural member (5) and the second structural member (4) to form around the liquid connection pipe (301), a gas connection pipe (302) is provided at the bottom end of the first structural member (3), the bottom end of the gas connection pipe (302) is connected to the electric sprinkler body (1) for gas delivery, an air inlet channel (9) is provided between the outer wall of the third structural member (5) and the inner wall of the second structural member (4), and the gas connection pipe (302) is connected to the annular gap (7) in sequence through the annular gap (8), the air inlet channel (9), so that a negative pressure environment can be formed in front of the spray pipe (6).

2. The electrically powered spray can of claim 1, wherein: The first structural component (3) includes a first cylinder (303) extending axially along the front and rear. The front end of the first cylinder (303) is provided with a first cylinder opening (304), and the rear end of the first cylinder (303) is provided with a first cylinder wall (305). The liquid connecting pipe (301) is coaxially disposed in the middle of the first cylinder wall (305). The front end of the liquid connecting pipe (301) protrudes into the interior of the first cylinder (303), and the annular gap (8) is located outside the liquid connecting pipe (301). Between the side and the inner side of the first cylinder (303), the gas connecting pipe (302) extends downward from the bottom end of the first cylinder (303); the outer edge of the first cylinder opening (304) is provided with a coaxially arranged internal thread assembly cylinder (306), the internal thread assembly cylinder (306) extends forward, the diameter of the internal thread assembly cylinder (306) is larger than the diameter of the first cylinder (303), and the front end of the liquid connecting pipe (301) protrudes into the interior of the internal thread assembly cylinder (306).

3. The electric spray can according to claim 2, characterized in that: The second structural component (4) includes a second cylinder (402) extending axially in the front and rear directions. The front end of the second cylinder (402) is provided with a second cylinder wall (403), and the rear end of the second cylinder (402) is provided with a second cylinder opening (404). The circular hole (401) is coaxially disposed in the middle of the second cylinder wall (403). The outer edge of the second cylinder opening (404) is provided with a coaxially disposed external threaded assembly cylinder (405). The external threaded assembly cylinder (405) extends rearward, and the diameter of the external threaded assembly cylinder (405) is larger than the diameter of the second cylinder (402). The front end of the third structural component (5) extends into the interior of the second cylinder (402), and the rear end of the third structural component (5) is located inside the external threaded assembly cylinder (405). The rear end of the external threaded assembly cylinder (405) is fitted inside the internal threaded assembly cylinder (306) and forms a threaded connection.

4. The electric spray can according to claim 3, characterized in that: The third structural component (5) includes a cylinder (502) extending axially along the front and rear. The liquid connection channel (501) is coaxially disposed in the middle of the cylinder (502). A structural assembly cylinder (503) is coaxially disposed on the outer edge of the rear end of the cylinder (502). The structural assembly cylinder (503) extends rearward and its diameter is larger than that of the cylinder (502). The front end of the cylinder (502) extends into the interior of the second cylinder (402). The structural assembly cylinder (503) is located inside the external thread assembly cylinder (405). The structural assembly cylinder (503) is sleeved outside the front end of the liquid connection pipe (301). The annular gap (8) is located behind the structural assembly cylinder (503) and the external thread assembly cylinder (405).

5. The electric spray can according to claim 4, characterized in that: The front end of the cylinder (502) and the second cylinder wall (403) have a converging space (10). The outer circumferential surface of the cylinder (502) is provided with a number of straight ventilation slots (504) extending forward and backward. The number of straight ventilation slots (504) are distributed sequentially along the circumferential direction of the cylinder (502). The outer side of the structural assembly cylinder (503) is provided with a number of inclined ventilation slots (505) extending gradually from back to front towards the cylinder (502). The number of inclined ventilation slots (505) are distributed sequentially along the circumferential direction of the structural assembly cylinder (503). The number of inclined ventilation slots (505) are respectively located behind the number of straight ventilation slots (504). The inclined ventilation slots (505) and the straight ventilation slots (504) cooperate to form the air inlet channel (9).

6. The electric spray can according to claim 5, characterized in that: The outer circumferential surface of the front end of the cylinder (502) is in close contact with the inner circumferential surface of the second cylinder (402). There is a ventilation space (11) between the outer circumferential surface of the rear end of the cylinder (502), the outer circumferential surface of the structural assembly cylinder (503), and the inner circumferential surface of the internal thread assembly cylinder (306). The inner circumferential surface of the second cylinder (402) is provided with a rearward through air receiving groove (406). Several air inlet channels (9) and the air receiving groove (406) are ventilated and cooperate with each other through the ventilation space (11). The rear end of the air receiving groove (406) passes between the rear end of the structural assembly cylinder (503) and the rear end of the external thread assembly cylinder (405) and communicates with the annular gap (8).

7. An electric spray can according to claim 6, characterized in that: The outer edge of the rear end of the structural assembly cylinder (503) is provided with two spiral plates (506) and two notches (507). The two spiral plates (506) and the two notches (507) are alternately distributed along the circumferential direction of the structural assembly cylinder (503). The inner edge of the rear end of the external thread assembly cylinder (405) is provided with two spiral grooves (407) and two air inlet grooves (406). The two spiral grooves (407) and the two air inlet grooves (406) are alternately distributed along the circumferential direction of the external thread assembly cylinder (405). The two spiral plates (506) are respectively assembled with the two spiral grooves (407), and the two notches (507) are respectively located behind the two air inlet grooves (406).

8. The electric spray can according to claim 7, characterized in that: The outer circumferential surface of the rear end of the cylinder (502) is provided with four limiting stops (508) extending along the front and rear. The four limiting stops (508) are distributed sequentially along the circumferential direction of the cylinder (502). The rear ends of the four limiting stops (508) extend rearward to the outer circumferential surface of the structural assembly cylinder (503). The air inlet channel (9) is located between two adjacent limiting stops (508). The front ends of the four limiting stops (508) are limited and engaged with the inner wall of the front end of the external thread assembly cylinder (405).

9. An electric spray can according to claim 3, characterized in that: The inner wall of the second cylinder wall (403) is a cone shape with a diameter that gradually decreases from back to front. The front edge of the liquid connection channel (501) is provided with a conical surface with a diameter that gradually increases outward. The rear end of the injection pipe (6) is inserted into the front end of the liquid connection channel (501). The inner diameter of the liquid connection channel (501) is smaller than the inner diameter of the liquid connection pipe (301). There is a transition space (12) between the front end of the liquid connection pipe (301) and the rear end of the liquid connection channel (501). The rear end of the liquid connection pipe (301) protrudes backward to the outside of the first cylinder wall (305). The upper front end of the gas connection pipe (302) is connected to the bottom end of the internal thread assembly cylinder (306). The upper rear end of the gas connection pipe (302) has a connecting hole (307) at the bottom of the annular spacer (8). The connecting hole (307) is inclined from bottom to top and forward.

10. An electric spray can according to any one of claims 1 to 9, characterized in that: The electric sprinkler body (1) has a liquid tank (13) at its bottom end and a nozzle (2) at its top end. The electric sprinkler body (1) includes a cylindrical shell (101) and an electric air pump (102), a battery (103), a feeding pipe (104), and an air inlet pipe (105) disposed inside the cylindrical shell (101). The electric air pump (102) is powered by the battery (103) and is connected to the bottom end of the gas connecting pipe (302). The rear end of the liquid connecting pipe (301) is connected to the liquid tank (13) through the feeding pipe (104). An air inlet structure (106) is provided below the front of the nozzle (2) and is connected to the liquid tank (13) through the air inlet pipe (105).

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