A portable spray device
By adding a shield and clamping part to the portable spraying device, the problem of spray dispersion was solved, enabling precise control of the spray and convenient maintenance of the device, thus improving the accuracy of spraying and the reliability of the test.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGXI ZHUANG AUTONOMOUS REGION ACAD OF AGRI SCI
- Filing Date
- 2025-07-16
- Publication Date
- 2026-07-03
AI Technical Summary
The water mist sprayed from existing electric water sprayers is easily affected by external factors such as wind force during the spraying process, which can cause the spray to not be accurately applied to the target area, resulting in errors in the dosage of the pesticide and affecting the test results.
A portable spraying device was designed, which adds a shield and a clamping part. The shield is fixed to the connecting tube by a fastening cap. Together with the atomizing nozzle and the micro water pump, it can achieve precise control of spraying and prevent diffusion.
It effectively reduces the spray's diffusion into non-target areas, improves spraying accuracy, enhances the device's practicality and the accuracy of test results, and facilitates component disassembly, cleaning, and maintenance.
Smart Images

Figure CN224443363U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of spraying devices, specifically relating to a portable spraying device. Background Technology
[0002] A watering can is a common misting device used for watering plants and spraying pesticides, offering advantages such as compact size and ease of use. Watering cans include manual and electric types, with electric watering cans being more convenient than traditional manual ones. Electric watering cans are disclosed in existing technology; for example, patent CN214132305U discloses an electric watering can comprising a body and a nozzle on the body. The nozzle is equipped with a water pump for drawing and spraying water from the body and a nozzle structure. The nozzle structure includes a water outlet, a connecting pipe, an atomizing core, and a nozzle. By improving the relative positions and connections of the water outlet, connecting pipe, atomizing core, and nozzle, it enhances production and assembly efficiency while providing better sealing and greater stability.
[0003] In addition, existing patent CN214599885U also discloses an electric water sprayer, including a body, a lid that seals onto the spout of the body, a water pump and battery installed inside the lid, and a one-way valve installed at an air hole on the lid that communicates with the body. This enables the electric water sprayer to spray water while maintaining a water pressure within the body that is not significantly different from atmospheric pressure, thus preventing deformation of the body.
[0004] Undeniably, the electric water sprayer disclosed in this patent can indeed achieve the above-mentioned effects, but it still has some shortcomings: during the spraying process, the sprayed water mist is easily affected by external factors such as wind force and diffuses, causing the spray to not accurately act on the target area, or diffuse into the surrounding non-target areas. Especially in the test with multiple different treatments, the diffusion will cause errors in the dosage of the sprayed liquid in the target area, which will have a certain impact on the test results.
[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content
[0006] The purpose of this invention is to provide a portable spraying device to solve the problems existing in the prior art.
[0007] To achieve the above objectives, the present invention provides the following technical solution:
[0008] A portable spray device, comprising:
[0009] Liquid storage container;
[0010] A lid is used to seal the top opening of the liquid storage vessel, and one side of the lid is fixed to a connecting pipe that communicates with its interior.
[0011] Atomizing nozzle fixed to the outer end of the connecting pipe;
[0012] A shield is provided on the connecting pipe, and a sleeve is integrally formed on the inner end of the shield. The wall of the sleeve gradually thins at the end away from the shield to form a clamping part.
[0013] The threaded connection of the sleeve tube is secured by a fastening cap. When the fastening cap is tightened, the outer end of the fastening cap presses against the clamping part, thereby fixing the sleeve tube onto the connecting pipe.
[0014] Furthermore, the clamping part is provided with a plurality of slots extending along its axial direction.
[0015] Furthermore, the fastening cap is divided into a connection area that is threadedly connected to the sleeve and a tapered area that is integrally formed with the connection area and whose diameter gradually decreases outward; wherein, the diameter of the outer end of the tapered area is larger than the outer diameter of the outer end of the clamping part, and the diameter of the outer end of the tapered area is smaller than the outer diameter of the inner end of the clamping part; when the fastening cap is tightened, the outer end of the tapered area compresses the outer wall of the clamping part, so that the inner wall of the clamping part is tightly attached to the connecting pipe.
[0016] Furthermore, the shield is in the shape of an outwardly expanding trumpet; an arc-shaped shield plate is fixed to the outer end of the shield, and the outer end of the shield plate is bent inward.
[0017] Furthermore, the portable spray device also includes a spray structure, which includes a miniature water pump fixed inside the lid, a water supply pipe with its outlet end connected to the inlet of the miniature water pump and its inlet end passing through the lid and extending into the bottom of the liquid storage tank, a connector connected to the outer end of the connector pipe, and a water delivery pipe with its inlet end connected to the outlet of the miniature water pump and its outlet end connected to the inlet end of the connector; the atomizing nozzle is connected to the outlet end of the connector.
[0018] Furthermore, the lid of the kettle is provided with a sealing cap that is threadedly connected to it.
[0019] Furthermore, a battery compartment is fixed to the side of the lid away from the connecting tube, the battery compartment contains a battery connected to the micro water pump, and the top of the battery compartment is provided with a cover that is snapped onto it.
[0020] Furthermore, the bottom of the battery compartment is provided with a grip, and the grip is provided with a control switch for controlling the start and stop of the micro water pump.
[0021] Furthermore, the bottom of the lid is provided with a first through hole communicating with the liquid storage vessel; the side wall of the lid is provided with a second through hole communicating with its interior.
[0022] Compared with the prior art, the present invention has the following beneficial effects:
[0023] (1) The present invention adds a shielding cover, which can shield the spray from the atomizing nozzle and reduce the spray from spreading to non-target areas; the arc-shaped shielding plate design at the outer end of the shielding cover can guide the shielded droplets to gather at the bottom of the shielding plate, which can avoid waste and prevent liquid from dripping randomly, thus helping to improve the accuracy of the test results; in addition, the shielding cover is fixed to the connecting pipe through the sleeve, clamping part and fastening cap, and the position of the shielding cover can be easily adjusted through the fastening cap, which can flexibly adjust and control the shielding range according to the size of the target area, thus improving the practicality of the device.
[0024] (2) The clamping part of the sleeve pipe of this utility model is designed with pipe wall reduction and groove, and with the tapered area of the fastening cap, when the fastening cap is tightened, the inside of the clamping part is tightly attached to the connecting pipe, which can not only ensure the fixation is firm, but also adjust the position of the shield by loosening and tightening, without the need for additional tools.
[0025] (3) The atomizing nozzle of this utility model is connected to the connecting pipe through the connecting seat, the lid is connected to the liquid storage tank by thread, and the sealing cover, the compartment cover, etc. are all connected by thread or snap. Each part can be disassembled independently and the corresponding part can be replaced separately, which is convenient for daily cleaning and maintenance.
[0026] (4) The first and second through holes of the lid of this utility model can balance the air pressure inside and outside the liquid storage tank and prevent the spraying from being interrupted due to internal negative pressure. Attached Figure Description
[0027] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0028] Figure 2 for Figure 1 Enlarged view of point A in the middle;
[0029] Figure 3 To remove Figure 1 Front view behind the central occlusion mask;
[0030] Figure 4 for Figure 3 Enlarged view at point B in the middle;
[0031] Figure 5 This is a schematic diagram of the connection structure of the lid, shield, and spray structure of this utility model;
[0032] Figure 6 This is a schematic diagram of the structure of the connector of this utility model;
[0033] Figure 7 This is a cross-sectional view of the shield of this utility model.
[0034] Figure 8 This is a cross-sectional view of the fastening cap of this utility model.
[0035] Explanation of key figure labels:
[0036] 1. Liquid reservoir; 2. Reservoir lid; 21. Connecting pipe; 22. Sealing cap; 23. Battery compartment; 24. Battery; 25. Compartment lid; 26. Grip part; 27. Control switch; 28. First through hole; 29. Second through hole; 3. Atomizing nozzle; 4. Shield; 41. Sleeve; 42. Clamping part; 43. Groove; 44. Shielding plate; 5. Fastening cap; 51. Connection area; 52. Gradient area; 6. Spray structure; 61. Miniature water pump; 62. Water supply pipe; 63. Connecting seat; 64. Water delivery pipe. Detailed Implementation
[0037] The technical solution of this utility model patent will be clearly and completely described below. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0038] Example
[0039] See appendix Figure 1-8 A portable spray device, comprising:
[0040] Storage container 1;
[0041] A lid 2 is attached to the top opening of the liquid storage container 1, and one side of the lid 2 is fixed to a connecting pipe 21 that communicates with its interior; in this embodiment, the lid 2 is threadedly connected to the top opening of the liquid storage container 1.
[0042] Atomizing nozzle 3 is fixed to the outer end of connecting pipe 21;
[0043] The shield 4 is installed on the connecting pipe 21. The inner end of the shield 4 is integrally formed with a sleeve 41 that is sleeved on the connecting pipe 21. The pipe wall of the sleeve 41 gradually thins at the end away from the shield 4 to form a clamping part 42. Multiple slots 43 extending along its axial direction are evenly opened on the clamping part 42. The shield 4 is in the shape of an outwardly expanding trumpet. An arc-shaped shield 44 is fixed at the outer end of the shield 4, and the outer end of the shield 44 is bent inward.
[0044] The fastening cap 5 of the threaded connecting sleeve 41 is divided into a connecting area 51 that is threadedly connected to the sleeve 41 and a tapered area 52 that is integrally formed with the connecting area 51 and whose diameter gradually decreases outward. The diameter of the outer end of the tapered area 52 is larger than the outer diameter of the outer end of the clamping part 42, and the diameter of the outer end of the tapered area 52 is smaller than the outer diameter of the inner end of the clamping part 42. When the fastening cap 5 is tightened, the inner wall of the outer end of the tapered area 52 compresses the outer wall of the clamping part 42, so that the inner wall of the clamping part 42 fits tightly against the connecting pipe 21, thereby fixing the sleeve 41 to the connecting pipe 21.
[0045] The spray structure 6 includes a miniature water pump 61 fixed inside the lid 2, a water supply pipe 62 whose outlet end is connected to the inlet of the miniature water pump 61 and whose inlet end passes through the lid 2 and extends into the bottom of the liquid storage tank 1, a connecting seat 63 threaded to the outer end of the connecting pipe 21, and a water delivery pipe 64 whose inlet end is connected to the outlet of the miniature water pump 61 and whose outlet end is connected to the inlet end of the connecting seat 63; in this embodiment, the atomizing nozzle 3 is threaded to the outlet end of the connecting seat 63.
[0046] In this embodiment, the top of the lid 2 is provided with a sealing cap 22 that is threadedly connected to it; a battery compartment 23 is fixed on the side of the lid 2 away from the connecting pipe 21, and a battery 24 connected to the micro water pump 61 is provided inside the battery compartment 23; a compartment cover 25 is provided on the top of the battery compartment 23 that is snapped together with it; a grip part 26 is provided at the bottom of the battery compartment 23, and a control switch 27 for controlling the start and stop of the micro water pump 61 is provided on the grip part 26. It should be further noted that a socket for connecting to the micro water pump 61 is fixed on the side wall of the battery compartment 23, and the socket is connected to the micro water pump 61 through a wire, and the control switch 27 is connected in series in the wire line; the output end of the battery 24 is connected to a plug corresponding to the socket;
[0047] In this embodiment, the bottom of the lid 2 is provided with a first through hole 28 that communicates with the liquid storage vessel 1; the side wall of the lid 2 is provided with a second through hole 29 that communicates with its interior.
[0048] Secondly, in this embodiment, the micro water pump 61 is the HRSSD370 micro water pump from Shenzhen Huarui Fluid Technology Co., Ltd.
[0049] In use, rotate the reservoir 1 to separate it from the lid 2. Add water or prepared medicine to the reservoir 1, then connect the reservoir 1 to the lid 2, which seals the top opening of the reservoir 1. When spraying water or medicine onto plant leaves, hold the handle 26 and start the micro water pump 61 via the control switch 27. The liquid in the reservoir 1 enters the inlet of the micro water pump 61 through the water supply pipe 62, then enters the water delivery pipe 64 and the connecting seat 63 from the outlet of the micro water pump 61, and finally is sprayed out from the atomizing nozzle 3.
[0050] When the atomized liquid diffuses outward, the shield 4 blocks this portion of the atomized liquid, effectively preventing it from spreading into non-target areas. Furthermore, this blocked portion of the atomized liquid is contained within the shield 4 and eventually collects at the bottom of the shield plate 44. This liquid can then be recovered, preventing it from flowing out from the bottom of the shield 4, thus avoiding waste or affecting the test results.
[0051] In this embodiment, the position of the shield 4 on the connecting pipe 21 is adjustable. Specifically, when the fastening cap 5 is loosened, the inner wall of the outer end of the tapered section 52 separates from the outer wall of the clamping part 42, and the tapered section 52 no longer squeezes the clamping part 42. At this point, a shield 4 of appropriate size can be moved or replaced. When it is necessary to fix the shield 4, the fastening cap 5 is tightened, and the inner wall of the outer wall of the tapered section 52 squeezes the outer wall of the clamping part 42, so that the inner wall of the clamping part 42 fits tightly against the connecting pipe 21, thereby fixing the sleeve 41 to the connecting pipe 21. The slot 43 provided on the clamping part 42 is to facilitate better fit of the clamping part 42 against the connecting pipe 21 when it is squeezed, thereby achieving a firm fixation of the sleeve 41.
[0052] After spraying is completed, the micro water pump 61 can be turned off by controlling switch 27.
[0053] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the present invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the present invention, as well as various different choices and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.
Claims
1. A portable spray device, characterized in that, include: Liquid storage container; A lid is used to seal the top opening of the liquid storage vessel, and one side of the lid is fixed to a connecting pipe that communicates with its interior. Atomizing nozzle fixed to the outer end of the connecting pipe; A shield is provided on the connecting pipe, and a sleeve is integrally formed on the inner end of the shield. The wall of the sleeve gradually thins at the end away from the shield to form a clamping part. The threaded connection of the sleeve tube is secured by a fastening cap. When the fastening cap is tightened, the outer end of the fastening cap presses against the clamping part, thereby fixing the sleeve tube onto the connecting pipe.
2. The portable spray device of claim 1, wherein, The clamping part is provided with a plurality of slots that extend along its axial direction.
3. The portable spray device of claim 1, wherein, The fastening cap is divided into a connection area that is threadedly connected to the sleeve and a tapered area that is integrally formed with the connection area and whose diameter gradually decreases outward. The diameter of the outer end of the tapered area is larger than the outer diameter of the outer end of the clamping part, and the diameter of the outer end of the tapered area is smaller than the outer diameter of the inner end of the clamping part. When the fastening cap is tightened, the outer end of the tapered area compresses the outer wall of the clamping part, causing the inner wall of the clamping part to fit tightly against the connecting pipe.
4. The portable spray device of claim 1, wherein, The shield is shaped like an outwardly expanding trumpet; an arc-shaped shield plate is fixed to the outer end of the shield, and the outer end of the shield plate is bent inward.
5. The portable spray device of claim 1, wherein, The portable spray device further includes a spray structure, which includes a miniature water pump fixed inside the lid, a water supply pipe with its outlet end connected to the inlet of the miniature water pump and its inlet end passing through the lid and extending into the bottom of the liquid storage tank, a connector connected to the outer end of the connector pipe, and a water delivery pipe with its inlet end connected to the outlet of the miniature water pump and its outlet end connected to the inlet end of the connector; the atomizing nozzle is connected to the outlet end of the connector.
6. The portable spray device of claim 5, wherein, The lid of the kettle is provided with a sealing cap that is threadedly connected to it.
7. The portable spray device of claim 5, wherein, A battery compartment is fixed to the side of the lid away from the connecting pipe. The battery compartment contains a battery connected to the micro water pump, and a cover is snapped onto the top of the battery compartment.
8. The portable spray device of claim 7, wherein, The bottom of the battery compartment is provided with a grip, and the grip is provided with a control switch to control the start and stop of the micro water pump.
9. The portable spray device of claim 1, wherein, The bottom of the lid has a first through hole that communicates with the liquid storage vessel; the side wall of the lid has a second through hole that communicates with its interior.