Spraying device

Abstract

The spraying device comprises a liquid storage tank, a tank opening is formed in the top end of the liquid storage tank, a plurality of liquid guide holes are formed in a tank body at the top end of the liquid storage tank, a limiting cylinder is fixedly connected to the top of an inner cavity of the liquid storage tank, a liquid guide assembly is arranged in the liquid storage tank, a top cover is installed on the tank opening, and a liquid outlet is formed in the top cover. The inner diameter of the top cover is correspondingly equal to the outer diameter of the tank opening, the surface of the inner wall of the top cover and the surface of the outer wall of the tank opening are provided with internal threads and external threads which are matched with each other respectively, the side wall of the top cover is fixedly connected with a grip, a pressurizing hole is formed in the center of the top of the top cover, and a pressurizing mechanism is arranged in the pressurizing hole. The spraying device is wide in spraying range, solid particles or impurities in liquid can be filtered during spraying so as to prevent the nozzle from being blocked, and each spraying component can be detached according to needs so as to clean residues on the surfaces of the components and in the liquid storage tank after being used for a long time.

Description

Technical Field

[0001] This utility model belongs to the technical field of spraying devices, and in particular relates to a spraying device. Background Technology

[0002] A spray device is a device that disperses liquids into small particles or atomized state through pressure or other technical means. In laboratories or scientific research, spray devices can be used to disperse liquids, generate aerosols, or facilitate chemical reactions under special conditions.

[0003] There are many types of spraying devices on the market. For example, a nutrient solution spraying device for Artemisia argyi cultivation with publication number CN210226199U is disclosed on the Chinese Patent Network. This spraying device has the advantage of preventing falling and improves the practicality of the spraying device. However, there are some defects and shortcomings that need to be improved: (1) Due to the structural design of some existing spraying devices, the spray can often only be sprayed along the front direction of the spraying device, and it is difficult to cover a large area or a long distance of target area, thus limiting the spraying range of the spraying device; (2) Some existing spraying devices do not filter the liquid. During use, solid particles or impurities are easy to clog the nozzle, resulting in uneven spraying or complete failure; (3) Some existing spraying devices adopt an integrated design, which is relatively complex in structure. The related parts are difficult to disassemble. After long-term use, it is not convenient to clean the residue on the surface of the parts and inside the device, thus affecting the subsequent use effect of the spraying device. Therefore, in view of the above problems, the spraying device provided by this utility model is of great significance. Utility Model Content

[0004] This invention provides a spraying device that, through the combined action of a liquid guiding component and a pressurizing mechanism, sprays liquid from a storage tank to form a spray. Multiple liquid guiding holes and pipes allow the spray to diffuse in a fan shape, covering a large area around the storage tank and distant target areas, thus effectively expanding the spray range. A filter screen on the nozzle filters solid particles or impurities in the liquid during spraying, effectively preventing nozzle clogging that could lead to uneven spraying or complete failure. The modular design allows for the removal of individual spraying components as needed, facilitating the cleaning of residues on the component surfaces and inside the storage tank after prolonged use. In summary, this invention solves the problems in the prior art.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model discloses a spraying device, including a liquid storage tank. The top of the liquid storage tank has an opening, and the top of the tank body has several liquid guiding holes. A limiting cylinder is fixedly connected to the top of the inner cavity of the liquid storage tank, and a liquid guiding component is provided inside the liquid storage tank. A top cover is installed on the opening, and the inner diameter of the top cover is equal to the outer diameter of the opening. The inner wall surface of the top cover and the outer wall surface of the opening are respectively provided with mating internal threads and external threads. A handle is fixedly connected to the side wall of the top cover, and a pressure hole is provided at the center of the top of the top cover. A pressure mechanism is provided in the pressure hole.

[0007] The liquid guiding assembly includes a diversion chamber and several liquid guiding pipes. The diversion chamber is annular and fixedly connected to the inner wall of the bottom end of the storage tank. Several liquid inlets are opened on the inner side of the diversion chamber. The bottom end of the liquid guiding pipe is fixedly connected to the top of the diversion chamber and communicates with the inner cavity of the diversion chamber. The top end of the liquid guiding pipe passes through the corresponding liquid guiding hole and extends to the outside of the storage tank. A nozzle is installed at the end of each liquid guiding pipe. Several spray holes are opened on the surface of the nozzle.

[0008] The pressurizing mechanism includes a pressurizing rod, which is inserted into a pressurizing hole, and a pressurizing block and a piston are fixedly connected to its top and bottom ends, respectively.

[0009] Furthermore, the liquid guiding holes are distributed in an equidistant ring along the circumference of the liquid storage tank, and the liquid guiding tubes are L-shaped, with the same number as the liquid guiding holes, and the outer diameter of the liquid guiding tubes is equal to the diameter of the liquid guiding holes.

[0010] Furthermore, the center of the limiting cylinder and the center of the can opening are on the same straight line, and the inner diameter of the limiting cylinder is equal to the inner diameter of the can opening. The piston is circular, and its diameter is equal to the inner diameter of the limiting cylinder. The diameter of the pressure rod is equal to the diameter of the pressure hole.

[0011] Furthermore, the piston has a groove on its side wall. The groove is an annular groove structure, and an anti-wear ring is provided inside the groove. The width of the anti-wear ring is equal to the width of the groove.

[0012] Furthermore, the nozzle is cylindrical, with its inner diameter being equal to the outer diameter of the liquid guide tube, and the inner wall surface of the nozzle and the outer wall surface of the top opening of the liquid guide tube are respectively provided with mutually mating internal and external threads.

[0013] Furthermore, a filter nozzle is installed at the top end of each of the liquid guiding tubes. The filter nozzle is stepped and has a circular cross-section. The major diameter and minor diameter of the filter nozzle correspond to the outer diameter and inner diameter of the liquid guiding tube, respectively. A filter screen is installed on the filter nozzle.

[0014] Furthermore, the handle is L-shaped, and a number of anti-slip grooves are formed on the side wall surface near the liquid storage tank. The anti-slip grooves are arc-shaped and are distributed linearly at equal intervals along the length of the handle.

[0015] The present invention has the following advantages over the prior art:

[0016] (1) When the spraying device of this utility model is used, the liquid in the storage tank can be sprayed out and formed into a spray by the combined action of the liquid guiding component and the pressurizing mechanism. Through multiple liquid guiding holes and liquid guiding pipes, the spray can spread in a fan shape and cover a large area and a distant target area around the storage tank, thereby effectively expanding the spray range.

[0017] (2) When the spraying device of this utility model is used, the filter screen on the filter nozzle can filter solid particles or impurities in the liquid during spraying, so as to effectively prevent the nozzle from becoming clogged and causing uneven spraying or complete failure.

[0018] (3) When using the spray device of this utility model, through modular design, each spray component can be disassembled as needed so that the residue on the surface of the component and inside the liquid storage tank can be cleaned after long-term use.

[0019] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of a spraying device according to the present invention;

[0022] Figure 2 This is a schematic diagram of the liquid storage tank in this utility model;

[0023] Figure 3 This is a front sectional view of the liquid storage tank in this utility model;

[0024] Figure 4 This is a schematic diagram of the liquid guiding component in this utility model;

[0025] Figure 5 This is a schematic diagram of the top cover structure in this utility model;

[0026] Figure 6This is a schematic diagram of the pressurization mechanism in this utility model;

[0027] Figure 7 This is a schematic diagram of the anti-wear ring in this utility model;

[0028] Figure 8 This is a schematic diagram of the nozzle structure in this utility model;

[0029] Figure 9 This is a schematic diagram of the filter tip in this utility model.

[0030] The attached diagram lists the components represented by each number as follows:

[0031] 1. Storage tank; 2. Tank opening; 3. Liquid guide hole; 4. Limiting cylinder; 5. Top cover; 6. Handle; 7. Pressurization hole; 8. Diversion chamber; 9. Liquid guide pipe; 10. Liquid inlet; 11. Nozzle; 12. Pressurization rod; 13. Pressurization block; 14. Piston; 15. Slot; 16. Anti-wear ring; 17. Filter tip; 18. Filter screen; 19. Anti-slip groove. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0033] In the description of this utility model, it should be understood that the terms "relative", "one end", "inner", "lateral", "end", "both ends", "both sides", "front", "one end face", "the other end face", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0034] Please see Figure 1-9As shown, a spraying device of this utility model includes a liquid storage tank 1, which is used to store liquids to be sprayed, such as water, pesticides, paint, disinfectants, etc. The top of the liquid storage tank 1 is provided with a tank opening 2, and the top of the tank body of the liquid storage tank 1 is provided with several liquid guiding holes 3. The top of the inner cavity of the liquid storage tank 1 is fixedly connected to a limiting cylinder 4, and a liquid guiding component is provided inside the liquid storage tank 1. A top cover 5 is installed on the tank opening 2. The inner diameter of the top cover 5 is equal to the outer diameter of the tank opening 2. The inner wall surface of the top cover 5 and the outer wall surface of the tank opening 2 are respectively provided with mutually matching internal threads and external threads. A handle 6 is fixedly connected to the side wall of the top cover 5. The top cover 5 can be fixed to the tank opening 2 by means of threaded connection. When the top cover 5 is fixed to the tank opening 2, the spraying device can be held in the hand and used by holding the handle 6. The liquid in the liquid storage tank 1 can be replenished by unscrewing the top cover 5. A pressure hole 7 is provided at the center of the top of the top cover 5, and a pressure mechanism is provided in the pressure hole 7.

[0035] The liquid guiding assembly includes a diversion chamber 8 and several liquid guiding pipes 9. The diversion chamber 8 is annular and is fixedly connected to the inner wall of the bottom end of the liquid storage tank 1. Several liquid inlets 10 are opened on the inner side of the diversion chamber 8. The bottom end of the liquid guiding pipe 9 is fixedly connected to the top of the diversion chamber 8 and communicates with the inner cavity of the diversion chamber 8. The top end of the liquid guiding pipe 9 passes through the corresponding liquid guiding hole 3 and extends to the outside of the liquid storage tank 1. A nozzle 11 is installed at the end of each liquid guiding pipe 9. Several spray holes are opened on the surface of the nozzle 11.

[0036] The pressurizing mechanism includes a pressurizing rod 12, which is inserted into the pressurizing hole 7. A pressurizing block 13 and a piston 14 are fixedly connected to its top and bottom ends, respectively. By pressing down on the pressurizing block 13, the pressurizing rod 12, along with the piston 14, moves downwards along the pressurizing hole 7. When the piston 14 enters the limiting cylinder 4 and moves downwards along it, the interior of the storage tank 1 is pressurized, increasing the internal air pressure. At this time, the liquid in the storage tank 1 can be forced into the distribution tank through the various inlets 10 under pressure. The liquid is ejected at high speed through nozzles 11 at the top of each liquid guide tube 9 into the flow chamber 8 and each liquid guide tube 9. When the high-pressure liquid is ejected through the nozzle holes on the surface of the nozzle 11, the sudden drop in pressure causes the liquid to split into fine droplets. At this time, the compressed air and the liquid mix at the nozzle 11 and disperse the liquid into mist droplets through the airflow, thereby forming a spray. The entire pressurizing mechanism can be removed from the liquid storage tank 1 by unscrewing the top cover 5 so that the residue on the surface of the pressurizing mechanism and inside the liquid storage tank 1 can be cleaned after long-term use.

[0037] Among them, the liquid guiding holes 3 are distributed in an equidistant ring along the circumference of the liquid storage tank 1, and the liquid guiding tubes 9 are L-shaped, with the same number as the liquid guiding holes 3. The outer diameter of the liquid guiding tubes 9 is equal to the diameter of the liquid guiding holes 3. When the liquid in the liquid storage tank 1 is sprayed out through the liquid guiding assembly and forms a spray, the multiple liquid guiding holes 3 and liquid guiding tubes 9 can make the spray spread in a fan shape and cover a large area and a distant target area around the liquid storage tank 1, thereby effectively expanding the spray range.

[0038] The center of the limiting cylinder 4 and the center of the tank opening 2 are on the same straight line, and the inner diameter of the limiting cylinder 4 is equal to the inner diameter of the tank opening 2. The piston 14 is circular, and its diameter is equal to the inner diameter of the limiting cylinder 4. The diameter of the pressure rod 12 is equal to the diameter of the pressure hole 7. When the pressure mechanism is used to pressurize the inside of the liquid storage tank 1, the piston 14 and the pressure rod 12 can be tightly fitted to the inner walls of the limiting cylinder 4 and the pressure hole 7, respectively, to play a limiting role, thereby preventing the pressure mechanism from shifting or tilting during the pressurization process. At the same time, it can also play a sealing role to prevent gaps from forming between the pressure mechanism and the pressure hole 7, which would cause air leakage during pressurization.

[0039] The piston 14 has a groove 15 on its side wall. The groove 15 is an annular groove structure and an anti-wear ring 16 is provided in the groove 15. The width of the anti-wear ring 16 is equal to the width of the groove 15. The anti-wear ring 16 can be made of elastic material such as rubber and is fixed in the groove 15 by plugging. When the piston 14 moves up and down along the inner wall of the limiting cylinder 4, the anti-wear ring 16 can play an anti-wear protection role to prevent the piston 14 from being worn due to direct contact with the inner wall surface of the limiting cylinder 4 for a long time.

[0040] The nozzle 11 is cylindrical, with its inner diameter corresponding to the outer diameter of the liquid guide tube 9. The inner wall surface of the nozzle 11 and the outer wall surface of the top opening of the liquid guide tube 9 are respectively provided with matching internal and external threads. The nozzle 11 can be fixed to the top opening of each liquid guide tube 9 by means of threaded connection. After long-term use, each nozzle 11 can be unscrewed from the corresponding liquid guide tube 9 in order to clean the residue on the surface of each nozzle 11 and the liquid guide tube 9.

[0041] Each liquid guide tube 9 has a filter nozzle 17 installed at its top end. The filter nozzle 17 is stepped and has a circular cross-section. The major and minor diameters of the filter nozzle 17 correspond to the outer and inner diameters of the liquid guide tube 9, respectively. A filter screen 18 is installed on the filter nozzle 17. The filter nozzle 17 can be fixed to the top end of each liquid guide tube 9 by insertion. When the liquid in the storage tank 1 enters each liquid guide tube 9 under the action of the liquid guide assembly and the pressurizing mechanism and is sprayed out through the nozzle 11, it will first come into contact with the filter screen 18 on each filter nozzle 17. At this time, the filter screen 18 can filter solid particles or impurities in the liquid to effectively prevent the nozzle 11 from becoming clogged, resulting in uneven spraying or complete failure. After the nozzle 11 is removed from the top end of the liquid guide tube 9, the filter nozzle 17 can be pulled out from the top end of the liquid guide tube 9 so that the impurities on the surface of the filter screen 18 can be cleaned regularly.

[0042] The handle 6 is L-shaped, and several anti-slip grooves 19 are provided on the side wall surface near the liquid storage tank 1. The anti-slip grooves 19 are arc-shaped and are distributed linearly at equal intervals along the length of the handle 6. When the spray device is held in the hand for use, each finger can fit in the corresponding anti-slip groove 19. At this time, the anti-slip grooves 19 can play an anti-slip role, making the grip more stable and preventing slipping and dropping.

[0043] All standard parts used in the application documents can be purchased from the market. All components in this application documents can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art.

[0044] The working principle of this utility model is as follows:

[0045] In use, one hand holds the handle 6 while the other hand presses down on the pressure block 13, causing the pressure rod 12 and piston 14 to move downwards along the pressure hole 7. When the piston 14 enters the limiting cylinder 4 and moves downwards along it, the inside of the storage tank 1 is pressurized, increasing the internal air pressure. Under this pressure, the liquid in the storage tank 1 is forced into the distribution chamber 8 and the guide pipes 9 through the inlets 10, and then ejected at high speed through the nozzles 11 at the top of the guide pipes 9. When the high-pressure liquid is ejected through the nozzle holes on the surface of the nozzles 11, the sudden drop in pressure causes the liquid to break into fine droplets. At this time, compressed air mixes with the liquid at the nozzles 11, and the airflow disperses the liquid into mist droplets, thus forming a spray. When the liquid in the storage tank 1 is ejected through the guide assembly and forms a spray, the multiple guide holes 3 and guide pipes 9 allow the spray to spread in a fan shape, covering a large area and a long distance around the storage tank 1. The target area is effectively expanded, thus increasing the spray range. Each liquid guide tube 9 is equipped with a filter nozzle 17 at its top end. When the liquid in the storage tank 1 enters each liquid guide tube 9 under the action of the liquid guide assembly and the pressurizing mechanism and is sprayed out through the nozzle 11, it will first come into contact with the filter screen 18 on each filter nozzle 17. At this time, the filter screen 18 can filter solid particles or impurities in the liquid to effectively prevent the nozzle 11 from becoming clogged, resulting in uneven spraying or complete failure. After the spraying device has been used for a long time, each nozzle 11 can be unscrewed from the corresponding liquid guide tube 9 to clean the residue on the surface of each nozzle 11 and the liquid guide tube 9. After the nozzle 11 is removed from the top end of the liquid guide tube 9, the filter nozzle 17 can be pulled out from the top end of the liquid guide tube 9 to clean the impurities on the surface of the filter screen 18 regularly. At the same time, the entire pressurizing mechanism can be removed from the storage tank 1 by unscrewing the top cover 5 to clean the residue on the surface of the pressurizing mechanism and inside the storage tank 1.

[0046] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A spray device, characterized in that The utility model provides a liquid storage tank, the top of the liquid storage tank is provided with a tank mouth, and the top of the liquid storage tank is provided with a plurality of liquid guide holes; a limiting cylinder is fixedly connected to the top of the liquid storage tank; a liquid guide assembly is arranged in the liquid storage tank; a top cover is arranged on the tank mouth; the inner diameter of the top cover is equal to the outer diameter of the tank mouth; the inner wall surface of the top cover is provided with an inner thread, and the outer wall surface of the tank mouth is provided with an outer thread; a handle is fixedly connected to the side wall of the top cover; a pressurizing hole is formed in the center of the top of the top cover; and a pressurizing mechanism is arranged in the pressurizing hole. The liquid guide assembly comprises a shunt bin and a plurality of liquid guide pipes; the shunt bin is annular and is fixedly connected to the inner wall of the bottom of the liquid storage tank; a plurality of liquid inlet openings are formed in the inner side of the shunt bin; the bottom of each liquid guide pipe is fixedly connected to the top of the shunt bin and is in communication with the inner cavity of the shunt bin; the top of each liquid guide pipe extends out of the liquid storage tank through a corresponding liquid guide hole; a nozzle is arranged at the end of each liquid guide pipe; and a plurality of spray holes are formed in the surface of the nozzle. The pressurizing mechanism comprises a pressurizing rod; the pressurizing rod is inserted into the pressurizing hole; a pressurizing block is fixedly connected to the top end of the pressurizing rod; and a piston is fixedly connected to the bottom end of the pressurizing rod.

2. A spray device according to claim 1, wherein The liquid guide holes are equidistantly and annularly distributed along the circumferential direction of the liquid storage tank; the liquid guide pipes are L-shaped; the number of the liquid guide pipes is equal to the number of the liquid guide holes; and the outer diameter of each liquid guide pipe is equal to the diameter of each liquid guide hole.

3. A spray device according to claim 1, wherein The center of the limiting cylinder is on the same straight line as the center of the tank mouth; the inner diameter of the limiting cylinder is equal to the inner diameter of the tank mouth; the piston is circular; the diameter of the piston is equal to the inner diameter of the limiting cylinder; and the diameter of the pressurizing rod is equal to the diameter of the pressurizing hole.

4. A spray device according to claim 1, wherein A clamping groove is formed in the side wall of the piston; the clamping groove is annular; and an anti-abrasion ring is arranged in the clamping groove.

5. A spray device according to claim 1, wherein The nozzle is cylindrical; the inner diameter of the nozzle is equal to the outer diameter of the liquid guide pipe; and the inner wall surface of the nozzle is provided with an inner thread, and the outer wall surface of the top end of the liquid guide pipe is provided with an outer thread.

6. A spray device according to claim 1, wherein A filter tip is arranged at the top end of each liquid guide pipe; the filter tip is ladder-shaped; the cross section of the filter tip is circular; the large diameter of the filter tip is equal to the outer diameter of the liquid guide pipe; the small diameter of the filter tip is equal to the inner diameter of the liquid guide pipe; and a filter screen is arranged on the filter tip.

7. A spray device according to claim 1, wherein The handle is L-shaped; a plurality of anti-skid grooves are formed in the side wall surface of the handle close to the liquid storage tank; the anti-skid grooves are arc-shaped; and the anti-skid grooves are equidistantly and linearly distributed along the length direction of the handle.

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