Marking paint nozzle and spraying tank comprising same

By arranging the middle guide surface and the side guide surface on the nozzle connecting hole, the problem of poor paint flow is solved, and the effect of smooth paint spraying and simple manufacturing is achieved.

CN223351936UActive Publication Date: 2025-09-19ZHONGSHAN DATIAN CAR CARE IND
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Patent Information

Application Number
CN202422410189.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-30
Publication Date
2025-09-19
Estimated Expiration
2034-09-30

AI Technical Summary

Technical Problem

The existing nozzle design results in uneven paint flow, which easily causes paint to accumulate and deposit in dead corners. It is also difficult and costly to manufacture.

Method used

An additional body is arranged on the communicating hole of the nozzle, including a middle guide surface and two side guide surfaces, to construct a guide surface group, thereby improving the smoothness of the paint flow and keeping the structure simple.

Benefits of technology

The smoothness of paint flow is improved, and the manufacturing difficulty and cost are reduced.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a marking paint nozzle which comprises a main body shell, an inserting part and a rod-shaped nozzle part, the inserting part is arranged on the main body shell, the inserting part is provided with an inserting hole and a communicating hole, and the upper end of the inserting hole is communicated with the lower end of the communicating hole. The rod-shaped nozzle part is arranged on the main body shell, a spraying hole is formed in the rod-shaped nozzle part, the spraying hole is communicated with the communicating hole, one end of the spraying hole penetrates through the hole wall of the communicating hole and forms a communicating opening, the other end of the spraying hole is a paint spraying outlet, an increasing body is arranged at the upper end of the communicating hole, and the increasing body is provided with a middle guide face and two side guide faces. According to the marking paint nozzle with the structure, the paint spraying smoothness can be improved, and meanwhile production and manufacturing are easy.
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Description

Technical Field

[0001] The utility model relates to a spraying technology, in particular to a marking paint nozzle and a spray can containing the nozzle. Background Art

[0002] A conventional spray can for marking includes a can body, a spray valve, and a nozzle. The spray valve is mounted on the can body, and the nozzle is mounted on the spray valve. The nozzle is provided with a rod-shaped nozzle portion. When the nozzle is pressed, the paint in the spray can is discharged through the spray valve and sprayed out through the spray hole of the rod-shaped nozzle portion, thereby enabling marking operations. The nozzle is provided with a plug-in hole and a connecting hole. The lower end of the connecting hole is connected to the upper end of the plug-in hole. The spray valve is provided with a valve stem portion, which is inserted into the plug-in hole. The valve stem portion is provided with a valve paint outlet. The spray hole of the rod-shaped nozzle portion extends through the side wall of the connecting hole. The paint is sprayed through the valve paint outlet of the valve stem portion, passes through the connecting hole, enters the spray hole of the rod-shaped nozzle portion, and is sprayed outwardly.

[0003] In the aforementioned nozzles, the paint output from the spray valve must bend before entering the spray hole, creating a tortuous path that results in less than smooth flow, affecting the paint spraying effect. Furthermore, it is prone to accumulation of deposits in blind spots, hindering subsequent use. While prior art techniques can improve the smoothness of paint spraying by adding a circular hole to connect the connecting hole and the spray hole, this addition is difficult and costly to manufacture. Furthermore, the relatively small size of the nozzle makes it difficult to accommodate such a hole. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems in the prior art. To this end, the present invention provides a marking paint nozzle that can improve the smoothness of paint spraying and is simple to manufacture.

[0005] The utility model also provides a spray can with the marking paint nozzle.

[0006] According to the marking paint nozzle of the first embodiment of the present utility model, it includes: a main body shell; a plug-in part, which is arranged on the main body shell, the plug-in part is provided with a plug-in hole and a connecting hole, the upper end of the plug-in hole is connected with the lower end of the connecting hole; a rod-shaped nozzle part, which is arranged on the main body shell, the rod-shaped nozzle part is provided with a spray hole, the spray hole is connected with the connecting hole, one end of the spray hole passes through the hole wall of the connecting hole and forms a connecting port, and the other end of the spray hole is a paint outlet; wherein, the hole wall surface of the connecting hole where the connecting port is located is defined as the hole mouth surface, and the hole wall surfaces of the connecting hole located on the left and right sides of the hole mouth surface are defined as side surfaces Surface, defining the hole wall surface of the communicating hole opposite to the orifice surface as the opposite surface; an additional body is provided at the upper end of the communicating hole, and the additional body has an intermediate guide surface and two side guide surfaces, the upper end of the intermediate guide surface is connected to the upper hole wall surface of the one end of the spray hole, the intermediate guide surface extends downward in an arc shape and is connected to the opposite surface, the two side guide surfaces are respectively located on the left and right sides of the intermediate guide surface, one side edge of the side guide surface is connected to the side edge of the corresponding side of the intermediate guide surface, the side guide surface extends downward in an arc shape and is connected to the side surface of the corresponding side, and the front end of the side guide surface extends and is connected to the orifice surface.

[0007] The marking paint nozzle according to the embodiment of the present invention has at least the following beneficial effects: the additional body is provided with an arc-shaped extending middle guide surface and two side guide surfaces, which are correspondingly connected to the spray hole, the opposite surface of the connecting hole, the orifice surface, and the side surface through the middle guide surface and the two side guide surfaces, thereby constructing a guide surface group that guides and converges to the spray hole, so that the process of spraying paint from the connecting hole to the spray hole is smooth; in addition, since the above-mentioned improvement only requires the provision of an additional body at the upper end of the connecting hole, compared with the need to open an arc-shaped extension hole, the changes to the original structure are small, it will not occupy too much space, and the manufacturing and production is relatively simple.

[0008] According to some embodiments of the present invention, the intermediate guide surface is tangentially connected to the upper hole wall surface of the one end of the spray hole, and the intermediate guide surface is tangentially connected to the opposite surface.

[0009] According to some embodiments of the present invention, one side edge of the side guide surface is tangentially connected to the side edge of the corresponding side of the middle guide surface, and the side guide surface is tangentially connected to the lateral side surface of the corresponding side.

[0010] According to some embodiments of the present invention, a default groove is formed on the orifice surface, and the default groove extends through the hole wall of the spray hole.

[0011] According to some embodiments of the present invention, a peripheral edge of the lower end opening of the communicating hole is provided with a downward-facing step surface.

[0012] According to some embodiments of the present invention, the rod-shaped nozzle portion extends from the outside to the inside and is connected to the outer periphery of the plug-in portion.

[0013] According to some embodiments of the present invention, a reinforcing rib is connected between the plug-in portion and the main body shell.

[0014] According to some embodiments of the present invention, the upper end of the main body shell is provided with a concave surface and anti-slip grooves.

[0015] According to some embodiments of the present invention, the adding body and the plug-in portion are an integrally formed structure.

[0016] According to the spray can of the second embodiment of the present invention, it includes: a tank body; a spray valve, which is arranged on the tank body, the spray valve is provided with a valve stem portion, and the valve stem portion is provided with a valve paint outlet; the marking paint nozzle of the first embodiment of the present invention, the marking paint nozzle is plug-fitted with the valve stem portion of the spray valve through the plug-in hole, and the communicating hole is connected to the valve paint outlet.

[0017] The spray can according to the embodiment of the present invention has at least the following beneficial effects: due to the use of the marking paint nozzle of the first embodiment of the present invention, the smoothness of spraying the paint can be improved, and the production and manufacturing are simple.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 A three-dimensional schematic diagram of a marking paint nozzle according to an embodiment of the present invention;

[0021] Figure 2 for Figure 1 A perspective schematic diagram of the structure shown as viewed from the bottom side;

[0022] Figure 3 for Figure 2 A magnified schematic diagram of point A;

[0023] Figure 4 A cross-sectional view of the marking paint nozzle according to the embodiment of the present invention after being installed on a spray can, taken along the central plane in the front-to-back direction;

[0024] Figure 5 A cross-sectional view of the marking paint nozzle according to an embodiment of the present invention after being installed on a spray can, taken along the central plane in the left-right direction;

[0025] Figure 6 A three-dimensional schematic diagram of an embodiment of the utility model in which a default groove is opened on the orifice surface;

[0026] Figure 7 This is a schematic diagram of the explosion of a spray can according to an embodiment of the present invention.

[0027] Reference numerals:

[0028] Main body shell 100, concave surface 110;

[0029] Insertion portion 200, insertion hole 210, communication hole 220, hole surface 221, opposite surface 222, side surface 223, default groove 230, step surface 240;

[0030] Rod-shaped nozzle portion 300, spray hole 310, communication port 311, paint spray outlet 312;

[0031] Add body 400, middle guide surface 410, side guide surface 420;

[0032] Reinforcement 500;

[0033] Tank 600;

[0034] Spray valve 700, valve stem 710, valve paint outlet 711. DETAILED DESCRIPTION

[0035] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0036] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0037] In the description of this utility model, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0038] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0039] Reference Figures 1 to 6 The marking paint nozzle includes a main body shell 100, a plug-in portion 200, and a rod-shaped nozzle portion 300. The plug-in portion 200 is disposed on the main body shell 100. The plug-in portion 200 is provided with a plug hole 210 and a communication hole 220. The upper end of the plug hole 210 is connected to the lower end of the communication hole 220. The rod-shaped nozzle portion 300 is disposed on the main body shell 100. The rod-shaped nozzle portion 300 has a spray hole 310 formed therein. The spray hole 310 is connected to the communication hole 220. One end of the spray hole 310 penetrates the wall of the communication hole 220 to form a communication port 311. The other end of the spray hole 310 is a paint spray outlet 312. The hole wall surface of the communicating hole 220 where the communicating port 311 is located is defined as the hole opening surface 221, the hole wall surfaces of the communicating hole 220 located on the left and right sides of the hole opening surface 221 are defined as the side surfaces 223, and the hole wall surface of the communicating hole 220 opposite to the hole opening surface 221 is defined as the opposite surface 222; the upper end of the communicating hole 220 is provided with an additional body 400, and the additional body 400 has a middle guide surface 410 and two side guide surfaces 420, and the upper end of the middle guide surface 410 is opposite to the side surface 222. The upper hole wall surface of one end of the spray hole 310 is connected, the middle guide surface 410 extends downward in an arc shape and is connected to the opposite surface 222, the two side guide surfaces 420 are respectively located on the left and right sides of the middle guide surface 410, and one side edge of the side guide surface 420 is connected to the side edge of the corresponding side of the middle guide surface 410, the side guide surface 420 extends downward in an arc shape and is connected to the side surface 223 on the corresponding side, and the front end of the side guide surface 420 extends and is connected to the orifice surface 221.

[0040] In the above structure, the additional body 400 is provided with an arc-shaped extending middle guide surface 410 and two side guide surfaces 420, which are correspondingly connected with the nozzle 310, the opposite surface 222 of the connecting hole 220, the orifice surface 221, and the side surface 223, thereby constructing a guide surface group that guides and converges to the nozzle 310, so that the process of spraying paint from the connecting hole 220 to the nozzle 310 is smooth; in addition, since the above improvement only requires an additional body 400 to be provided at the upper end of the connecting hole 220, compared with the need to open an arc-shaped extension hole, the changes to the original structure are small, it will not occupy too much space, and the manufacturing and production is relatively simple.

[0041] In an embodiment, the intermediate guide surface 410 is tangentially connected to the upper hole wall surface of the one end of the spray hole 310 , and the intermediate guide surface 410 is tangentially connected to the opposite surface 222 , thereby guiding the flow of the spray paint more smoothly.

[0042] In an embodiment, one side of the side guide surface 420 is tangentially connected to the side of the corresponding side of the middle guide surface 410, and the side guide surface 420 is tangentially connected to the side surface 223 of the corresponding side, so as to guide the flow of the paint more smoothly.

[0043] In this embodiment, the orifice surface 221 is provided with a default groove 230, which extends through the wall of the spray hole 310. This structure can facilitate increasing the flow rate of the paint through the default groove 230 and improve the smoothness of the paint passing through the orifice surface 221 and entering the spray hole 310.

[0044] In the embodiment, the opposing surface 222 and the side surfaces 223 are connected arc surfaces, and the orifice surface 221 is a plane.

[0045] In the embodiment, a downward-facing step surface 240 is provided on the periphery of the lower end opening of the communicating hole 220 , thereby facilitating the vertical positioning and installation of the valve stem portion 710 of the spray valve 700 through the step surface 240 .

[0046] In an embodiment, the rod-shaped nozzle portion 300 extends from the outside to the inside and is connected to the outer periphery of the plug-in portion 200. The above structure is simple and can save materials.

[0047] In an embodiment, a reinforcing rib 500 is connected between the plug-in portion 200 and the main body shell 100 , thereby increasing the connection strength between the plug-in portion 200 and the main body shell 100 .

[0048] In an embodiment, the upper end of the main body shell 100 is provided with a concave surface 110 and anti-slip grooves, so as to facilitate operation.

[0049] In the embodiment, the additional body 400 and the plug-in portion 200 are integrally formed, thereby facilitating production. Of course, it is conceivable that in some embodiments, the additional body 400 and the plug-in portion 200 may also be manufactured as separate bodies, with the additional body 400 being mounted on the upper end of the communication hole 220.

[0050] In the embodiment, the main body shell 100, the plug-in portion 200, the rod-shaped nozzle portion 300, the increasing body 400 and the reinforcing rib 500 are an integrally formed structure, thereby facilitating production.

[0051] Reference Figure 7, a spray can according to the second embodiment of the present invention, comprises: a can body 600, a spray valve 700, and the marking paint nozzle according to the first embodiment of the present invention. The spray valve 700 is mounted on the can body 600 and has a valve stem 710, which is provided with a valve paint outlet 711. The marking paint nozzle is pluggable with the valve stem 710 of the spray valve 700 via the plug hole 210, and the communication hole 220 is connected to the valve paint outlet 711. The marking paint nozzle according to the first embodiment of the present invention can improve the smoothness of paint spraying and simplify manufacturing.

[0052] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0053] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A marking paint nozzle, characterized in that: include: Main body shell (100); A plug-in portion (200) is provided on the main body shell (100), wherein the plug-in portion (200) is provided with a plug-in hole (210) and a communication hole (220), wherein the upper end of the plug-in hole (210) is communicated with the lower end of the communication hole (220); A rod-shaped nozzle portion (300) is provided on the main body shell (100), the rod-shaped nozzle portion (300) is provided with a spray hole (310), the spray hole (310) is communicated with the communicating hole (220), one end of the spray hole (310) penetrates the hole wall of the communicating hole (220) and forms a communicating port (311), and the other end of the spray hole (310) is a paint spray outlet (312); The hole wall surface of the communicating hole (220) where the communicating port (311) is located is defined as the hole opening surface (221), the hole wall surfaces of the communicating hole (220) located on the left and right sides of the hole opening surface (221) are defined as the side surfaces (223), and the hole wall surface of the communicating hole (220) opposite to the hole opening surface (221) is defined as the opposite surface (222); an additional body (400) is provided at the upper end of the communicating hole (220), and the additional body (400) has a middle guide surface (410) and two side guide surfaces (420), and the middle guide surface (410) The upper end of the guide surface (410) is connected to the upper hole wall surface of the one end of the spray hole (310), the middle guide surface (410) extends downward in an arc shape and is connected to the opposite surface (222), the two side guide surfaces (420) are respectively located on the left and right sides of the middle guide surface (410), one side edge of the side guide surface (420) is connected to the side edge of the corresponding side of the middle guide surface (410), the side guide surface (420) extends downward in an arc shape and is connected to the side surface (223) of the corresponding side, and the front end of the side guide surface (420) extends and is connected to the orifice surface (221).

2. The marking paint nozzle according to claim 1, characterized in that: The intermediate guide surface (410) is tangentially connected to the upper hole wall surface of the one end of the spray hole (310), and the intermediate guide surface (410) is tangentially connected to the opposite surface (222).

3. The marking paint nozzle according to claim 1 or 2, characterized in that: One side edge of the side guide surface (420) is tangentially connected to the side edge of the corresponding side of the middle guide surface (410), and the side guide surface (420) is tangentially connected to the side surface (223) of the corresponding side.

4. The marking paint nozzle according to claim 1, characterized in that: The orifice surface (221) is provided with a default groove (230), and the default groove (230) extends through the hole wall of the spray hole (310).

5. The marking paint nozzle according to claim 1, characterized in that: The peripheral edge of the lower end opening of the communication hole (220) is provided with a step surface (240) facing downward.

6. The marking paint nozzle according to claim 1, characterized in that: The rod-shaped nozzle portion (300) extends from the outside to the inside and is connected to the outer periphery of the plug-in portion (200).

7. The marking paint nozzle according to claim 1, characterized in that: A reinforcing rib (500) is connected between the plug-in portion (200) and the main body shell (100).

8. The marking paint nozzle according to claim 1, characterized in that: The upper end of the main body shell (100) is provided with a concave surface (110) and anti-slip grooves.

9. The marking paint nozzle according to claim 1, characterized in that: The increasing body (400) and the plug-in portion (200) are an integrally formed structure.

10. A spray can, characterized in that: include: Tank (600); A spray valve (700) is provided on the tank body (600), wherein the spray valve (700) is provided with a valve stem (710), and the valve stem (710) is provided with a valve paint outlet (711); The marking paint nozzle according to any one of claims 1 to 9, wherein the marking paint nozzle is plug-fitted with the valve stem portion (710) of the spray valve (700) through the plug-in hole (210), and the communicating hole (220) is connected to the valve paint outlet (711).