Liquid sprayer

Abstract

The utility model discloses a liquid sprayer which is provided with an axial and opposite top side and bottom side, and comprises a liquid storage barrel; an upper cover; a lower cover; a stirring assembly; a storage battery; the water pump is located in the mounting area, one end of the water pump is communicated with the liquid storage area, the water pump is used for discharging liquid stored in the liquid storage area, and the water pump comprises a motor and a water pump, a pump cavity is formed in the pump body, the pump body is provided with a front end and a rear end which are oppositely arranged in the axial direction, and the rear end of the pump body is connected with the motor; the liquid inlet is formed in the bottom side of the pump body and is communicated with the pump cavity; the liquid outlet is located at the front end of the pump body and communicated with the pump cavity, the central axis of the liquid inlet and the central axis of the liquid outlet are coplanar, and the included angle between the liquid inlet and the central axis of the liquid outlet is 90 degrees. The central axis of the liquid inlet and the central axis of the liquid outlet are coplanar, and the included angle between the central axis of the liquid inlet and the central axis of the liquid outlet is 90 degrees, so that liquid in the sprayer enters and flows out in the shortest flowing path, the water inlet efficiency of the water pump is high, the spraying amount is stable, and the working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sprayers, in particular to a liquid sprayer. BACKGROUND

[0002] Most of the existing electric sprayers adopt diaphragm pumps, which have the advantages of small size and light weight. The water suction capacity of the diaphragm pump basically depends on the diaphragm installed in the pump body and the water inlet and outlet valves. However, the existing diaphragm pump has opposite orientations of the liquid inlet and outlet, i.e., the water inlet and outlet are 180°. Therefore, after the liquid inlet is installed in the liquid storage barrel of the sprayer, the liquid in the liquid storage barrel needs to pass through a 90° curved flow channel to enter the water inlet. Therefore, the existing diaphragm pump has defects in the structure of the liquid inlet and outlet, which may cause the water inlet valve flow to be less, resulting in small spraying amount and affecting work efficiency. CONTENT OF THE UTILITY MODEL

[0003] In order to solve the technical problems, the present application provides a liquid sprayer having an axial, opposite top side and bottom side, comprising:

[0004] A liquid storage barrel having an upper opening, a lower opening, a side wall, and an internal partition plate, which divides the internal space of the liquid storage barrel into a liquid storage area and a mounting area;

[0005] An upper cover for buckling with the upper opening and closing the upper opening;

[0006] A lower cover for buckling with the lower opening;

[0007] A stirring assembly located in the mounting area, having a stirring end with a stirring impeller extending into the liquid storage area and a power end for providing power;

[0008] A storage battery electrically connected with the stirring assembly for providing power, the storage battery being limited between the partition plate and the lower cover;

[0009] A water pump located in the mounting area, one end of which is in communication with the liquid storage area for discharging the liquid stored in the liquid storage area, comprising:

[0010] An electric motor electrically connected with the storage battery, having a rotating shaft arranged along the axial direction inside the electric motor;

[0011] A pump body having a pump cavity inside, having a front end and a rear end arranged oppositely along the axial direction, the rear end of the pump body being connected with the electric motor;

[0012] A liquid inlet located at the bottom side of the pump body and in communication with the pump cavity;

[0013] A liquid outlet located at the front end of the pump body and in communication with the pump cavity, the central axes of the liquid inlet and outlet being coplanar and the included angle between the two being 90°.

[0014] Optionally, the pump body comprises a side wall and a left end cover and a right end cover, which enclose the pump cavity, and the liquid inlet and the liquid outlet are both arranged on the side wall.

[0015] Optionally, a water inlet pipe is arranged at the liquid inlet, and mounting grooves for nesting sealing members are arranged on the water inlet pipe at intervals.

[0016] Optionally, a water outlet pipe is arranged at the liquid outlet, and the water outlet pipe is provided with no less than two steps.

[0017] Optionally, the adjacent steps are connected by a tapered surface.

[0018] Optionally, the bottom side of the motor is symmetrically provided with a foot support.

[0019] Optionally, the foot support is located at the middle part of the water pump, and the number of the foot supports is two.

[0020] Optionally, a diaphragm member and a driving structure for driving the diaphragm member to work are arranged in the pump cavity.

[0021] Unlike the structure in the prior art in which the liquid inlet and the liquid outlet are opposite to each other, the central axes of the liquid inlet and the liquid outlet of the present application are coplanar and the included angle between the two is 90°, so that when the sprayer is normally used, the liquid inlet is in a vertical direction and the liquid outlet is in a horizontal direction, and then the liquid directly flows into the pump cavity from the liquid inlet and is horizontally discharged from the liquid outlet, without the need to pass through a 90° curved flow channel as in the prior art to enter the pump cavity. It can be seen that the liquid in the sprayer completes the entering and discharging with the shortest flow path, so that the water pump has high water inlet efficiency, stable spraying amount, and improved working efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a structural schematic diagram of the present application;

[0023] Figure 1a is a perspective view of the water pump; Figure 1

[0024] is a left view of the water pump; Figure 2 Figure 1 is a bottom view of the water pump;

[0025] Figure 3 Figure 1 is a bottom view of the water pump;

[0026] Figures 4 to 5 is a structural schematic diagram of the water pump of the present application assembled on the sprayer;

[0027] Figure 6 is a structural schematic diagram of the pump body in the present application; and

[0028] ​​Figure 7 Fig. 1 is a structural schematic diagram of a water pump in the prior art.

[0029] Reference signs in the drawings are explained as follows:

[0030] 1. water pump; 11. axial direction; 12. top side; 13. bottom side;

[0031] 2. motor; 21. rotating shaft; 22. foot stand;

[0032] 3. pump body; 31. pump cavity; 32. front end; 33. rear end; 34. left end cover; 35. right end cover; 36. side wall; 37. diaphragm member; 38. driving structure;

[0033] 4. liquid inlet; 5. liquid outlet; 6. water inlet pipe; 61. mounting groove;

[0034] 7. water outlet pipe; 71. step; 72. conical surface;

[0035] 8. sprayer; 81. liquid storage barrel; 811. upper opening; 812. lower opening; 82. partition plate; 83. liquid storage area; 84. mounting area; 85. upper cover; 86. lower cover; 87. stirring assembly; 88. battery. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0037] It should be noted that when a component is referred to as being “connected” with another component, it can be directly connected with the other component or there can be a middle component. When a component is referred to as being “disposed on” another component, it can be directly disposed on the other component or there can be a middle component.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this description, the terms “and / or” includes any and all combinations of one or more of the associated listed items.

[0039] Reference Figures 1 to 6The embodiment of the present application provides a liquid sprayer, which has an axial direction 11, opposite top and bottom sides 12 and 13. The embodiment of the present application provides a sprayer 8, which comprises a liquid storage barrel 81, an upper cover 85 and a lower cover 86. The liquid storage barrel 81 has an upper opening 811, a lower opening 812 and a side wall. Figure 1 The liquid storage barrel 81 is formed into a hollow barrel shape by the side wall, and the two ends of the barrel shape are respectively formed into the upper opening 811 and the lower opening 812.

[0040] The liquid storage barrel is internally provided with a partition plate 82, which divides the internal space of the liquid storage barrel into a liquid storage area 83 and a mounting area 84. The liquid storage area 83 is located at the upper part and corresponds to the upper opening, and is mainly used for storing liquid such as pesticides to be sprayed. The mounting area 84 is located at the lower part and corresponds to the lower opening, and is used for assembling a battery and other parts.

[0041] The upper cover 82 is used for buckling and closing the upper opening 811. The upper cover 82 can be provided with a medicine pouring port to facilitate pouring of liquid such as pesticides, and can be provided with one or more accommodation areas to facilitate storage. The lower cover 86 is used for buckling the lower opening 812, so that the upper and lower ends of the liquid storage barrel are in a closed state during use.

[0042] The water pump 1 is assembled in the mounting area 84. One end of the water pump 1 is in communication with the liquid storage area (i.e., the water pump end), and the other end penetrates through the side wall and extends out of the side wall (which can be connected to an existing pesticide discharging pipe) and is used for spraying the liquid such as pesticides stored in the liquid storage area.

[0043] The stirring assembly 87 is assembled in the mounting area 84 and has a stirring end and a power end. The stirring end extends into the liquid storage area and is provided with a stirring impeller for stirring the liquid in the liquid storage area. The power end is a small motor for providing power for the stirring impeller. The structure of the stirring assembly can refer to the structure of the stirring assembly in the prior art.

[0044] The battery 83 is electrically connected with the water pump and the stirring assembly, for example, the battery is electrically connected with the water pump and the motor to provide power. The battery is limited between the clamping groove and the lower cover and can be fixed by using the fixing structure in the prior art.

[0045] The top side and the bottom side are relative to the position of the water pump assembled in the sprayer. The side of the water pump connected with the sprayer 8 is the bottom side, and the other side is the top side. Figure 2 The axial direction can be understood as the length direction of the water pump, that is, the direction indicated by the X axis in Figure 4 The top side and the bottom side are relative to the position of the water pump assembled in the sprayer. The side of the water pump connected with the sprayer 8 is the bottom side, and the other side is the top side. Figure 1

[0046] The water pump mainly comprises a motor 2 and a pump body 3. The motor 2 is internally provided with a rotating shaft 21 arranged in the axial direction. One end of the motor is a lead-in end for connecting the power supply, and the other end is fixedly connected with the pump body.

[0047] ​The pump body 3 has a pump cavity inside, which is a flow channel for liquid. The pump body has a front end 32 and a rear end 33 arranged oppositely along the axial direction, as shown in the figure. The front end of the pump body can be mounted with a medicine discharge pipe, so as to spray the liquid out; and the rear end of the pump body is used for fixed connection with the motor. Figure 4

[0048] The liquid inlet 4 is located at the bottom side of the pump body and communicates with the pump cavity 31, and is used for sucking the liquid stored in the sprayer and making the liquid flow into the pump cavity.

[0049] The liquid outlet 5 is located at the front end of the pump body and communicates with the pump cavity 31, and is used for discharging the liquid in the pump cavity.

[0050] Referring to Figure 7 the figure, the structure of the liquid inlet and the liquid outlet in the prior art is different in that the liquid inlet and the liquid outlet are 180°, and the liquid inlet needs to pass through a connecting piece with a 90° bend to communicate with the sprayer, so that the liquid needs to pass through a flow channel with a 90° bend to enter the liquid inlet.

[0051] Unlike the prior art, the central axes of the liquid inlet and the liquid outlet of the present application are coplanar and the included angle between the two is 90°, so that when the sprayer 8 is normally used, the liquid inlet is in a vertical direction and the liquid outlet is in a horizontal direction, and then the liquid directly flows into the pump cavity from the liquid inlet and is horizontally discharged from the liquid outlet, without needing to pass through a flow channel with a 90° bend to enter the pump cavity as in the prior art. It can be seen that the liquid in the sprayer completes the entering and discharging with the shortest flow path, so that the water inlet efficiency of the water pump is high, the medicine spraying amount is stable, and the working efficiency is improved.

[0052] In some embodiments, the pump body includes a side wall 36 and left and right end covers 34 and 35, which enclose a sealed pump cavity, and the liquid inlet and the liquid outlet are both arranged on the side wall.

[0053] The water inlet pipe 6 is arranged at the liquid inlet 4, and the water inlet pipe 6 is arranged with installation grooves 61 for nesting sealing members at intervals, and the sealing members can be conventional sealing members such as O-shaped rubber rings, so as to enhance the sealing of the joint between the liquid inlet and the sprayer. As a preferred embodiment, the sprayer can also be provided with a joint and a filter matched with the liquid inlet, to further ensure the sealing and prevent leakage.

[0054] The water outlet pipe 7 is arranged at the liquid outlet 5, and the water outlet pipe can be in interference fit with the medicine discharge pipe, and the water outlet pipe is provided with not less than two steps 71, so as to not only effectively prevent leakage, but also reduce the contact area and facilitate disassembly. As a preferred embodiment, the adjacent steps are connected through a taper surface 72, and the cooperation effect is better.

[0055] In some embodiments, the bottom side of the motor is symmetrically provided with foot supports 22 to balance the acting force and reduce the shaking. As a preferred embodiment, the foot supports are located at the middle part of the water pump, and the number of the foot supports is only two.

[0056] ​In some embodiments, the pump cavity is provided with a diaphragm 37 and a driving structure 38 for driving the diaphragm to work, the driving structure is connected with the rotating shaft by eccentric connection, the number of diaphragms is two, and the diaphragms are respectively located on the left and right sides of the pump cavity and correspond to the distribution positions of the left end cover and the right end cover.

[0057] The driving structure is the structure of a common diaphragm pump and belongs to the conventional technology in the field, which is generally realized by a plunger or a cam, the diaphragm is driven by the motor to protrude or recess, so as to change the volume of the pump cavity, increase the water pressure, the pump cavity is generally provided with a water inlet cavity connected with the liquid inlet and a liquid outlet cavity connected with the liquid outlet, the water inlet cavity and the liquid outlet cavity are both provided with a one-way valve, and finally the liquid flows from the water inlet cavity to the water outlet cavity in one direction.

[0058] Compared with the prior art, the water pump of the present application is assembled behind the sprayer, the liquid inlet and outlet of the sprayer are more efficient, and the structure is more compact.

[0059] The technical features of the above-described embodiments can be combined arbitrarily, and to make the description concise, all possible combinations of the technical features in the above-described embodiments are not described, however, as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope disclosed in the present application. When the technical features in different embodiments are embodied in the same drawing, it can be considered that the drawing also discloses the combination of each embodiment involved.

[0060] The above-described embodiments only express several implementation manners of the present application, the description is more specific and detailed, but it should not be understood as a limitation on the patent application scope. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the protection scope of the present application.

Claims

1. A liquid sprayer having an axial, opposite top side and bottom side, characterized in that, The utility model relates to a liquid storage barrel, which comprises: a liquid storage barrel having an upper opening, a lower opening, a side wall, and an internal partition plate separating the internal space of the liquid storage barrel into a liquid storage area and a mounting area; an upper cover for fastening and closing the upper opening; a lower cover for fastening the lower opening; a stirring assembly located in the mounting area and having a stirring end with a stirring impeller extending into the liquid storage area and a power end for providing power; a storage battery electrically connected to the stirring assembly for providing power, the storage battery being limited between the partition plate and the lower cover; a water pump located in the mounting area and having one end in communication with the liquid storage area for discharging the liquid stored in the liquid storage area, which comprises: a motor electrically connected to the storage battery and having a rotating shaft arranged along the axial direction inside the motor; a pump body having a pump cavity, a front end, and a rear end arranged oppositely along the axial direction, the rear end of the pump body being connected to the motor; a liquid inlet located on the bottom side of the pump body and in communication with the pump cavity; a liquid outlet located on the front end of the pump body and in communication with the pump cavity, the central axes of the liquid inlet and the liquid outlet being coplanar and the angle between the liquid inlet and the liquid outlet being 90°.

2. The liquid sprayer of claim 1, wherein The pump body comprises a side wall and left and right end covers, which enclose the pump cavity, and the liquid inlet and the liquid outlet are both arranged on the side wall.

3. The liquid sprayer of claim 2, wherein, A water inlet pipe is arranged at the liquid inlet, and mounting grooves for nesting sealing members are arranged on the water inlet pipe at intervals.

4. The liquid sprayer of claim 2, wherein, A water outlet pipe is arranged at the liquid outlet, and the water outlet pipe is provided with no less than two steps.

5. The liquid sprayer of claim 4, wherein, The adjacent steps are connected by a conical surface.

6. The liquid sprayer of claim 1, wherein, The bottom side of the motor is symmetrically provided with foot supports.

7. The liquid sprayer of claim 6, wherein, The foot supports are located in the middle part of the water pump, and the number of the foot supports is two.

8. The liquid sprayer of claim 1, wherein, A diaphragm member and a driving structure for driving the diaphragm member to work are arranged in the pump cavity.

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