A portable waterproof coating quantitative spraying device

Abstract

The utility model discloses a kind of portable waterproof coating quantitative spraying device, including spray gun and the nozzle of being equipped in spray gun output end, the surface of the nozzle is equipped with movable ring, the side of the movable ring is equipped with the fixed ring of being fixed to the surface of nozzle, the inside of the movable ring is equipped with protection support unit for with The fixed ring assembly;The protection support unit includes positioning arm, movable arm and protection arm, the positioning arm, movable arm and protection arm are sequentially head-to-tail connection, the surface of the fixed ring is equipped with through groove for the through of the movable arm or positioning arm.The utility model provides a kind of portable waterproof coating quantitative spraying device, in non-use state (such as equipment transportation, storage or process interval), operator can draw together to multiple protection arms inward, make it in the front end of nozzle natural enclose, form a mechanical "protective cover".This integrated design does not need to disassemble or find additional accessories, can provide circumferential protection for precision, fragile nozzle.

Description

Technical Field

[0001] This utility model relates to the field of spraying technology, and in particular to a portable waterproof coating quantitative spraying device. Background Technology

[0002] In the field of portable spraying, especially in building waterproofing, small-area repairs and fine coating operations, maintaining the optimal and constant spraying distance between the nozzle and the work surface when the operator holds the spray gun is the most critical challenge to ensure coating uniformity, adhesion and final construction quality.

[0003] The function of existing handheld spray guns is mainly focused on the atomization and spraying of paint. The nozzle is completely exposed without any corresponding protective structure. As a result, the nozzle is prone to collisions with external objects before and after spraying, which is not conducive to the protection of the nozzle and can easily cause clogging or damage to the nozzle. Utility Model Content

[0004] Therefore, it is necessary to provide a portable waterproof coating metering spraying device to address the aforementioned technical problems. When not in use (such as during equipment transportation, storage, or process breaks), the operator can bring multiple protective arms inwards, allowing them to naturally surround the front of the nozzle, forming a mechanical "protective shield." This integrated design provides circumferential physical protection for the delicate and fragile nozzle without requiring disassembly or additional accessories, effectively preventing nozzle damage caused by accidental bumps, drops, or pressure from other tools. This reduces equipment maintenance costs and the risk to coating quality caused by nozzle deformation.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A portable waterproof coating metering spraying device includes a spray gun and a nozzle located at the output end of the spray gun. A movable ring is fitted on the surface of the nozzle, and a fixed ring is fixed to the surface of the nozzle on one side of the movable ring. A protective support unit is provided on the inner side of the movable ring for assembly with the fixed ring.

[0007] The protective support unit includes a positioning arm, a movable arm, and a protective arm, which are connected end to end in sequence. The surface of the fixed ring is provided with a through groove for the movable arm or the positioning arm to pass through.

[0008] Furthermore, one end of the positioning arm is provided with a movable groove, and one end of the movable arm is placed in the movable groove.

[0009] Furthermore, a screw is fixed to the side wall of the movable groove, and a screw cylinder is threadedly connected to the outer side of the positioning arm. The screw cylinder passes through the movable arm and is threadedly connected to the screw.

[0010] Furthermore, the end of the movable arm away from the movable groove is movably connected to the protective arm via a resistance pivot, and a support block is fixed on the inner side of the protective arm.

[0011] Furthermore, a positioning bolt is threaded onto the surface of the fixed ring at the position corresponding to the movable groove.

[0012] Furthermore, the top of the spray gun is provided with a metering paint cup, the spray gun is provided with an atomizing component near the nozzle, and the bottom of the spray gun is provided with a trigger handle.

[0013] Furthermore, the spray gun is provided with a handle near the trigger handle, and the bottom of the handle is provided with an air pipe connector that communicates with the atomizing component.

[0014] Furthermore, the air pipe connector is used to connect to an external air compressor unit via an air pipe.

[0015] Furthermore, the protective support unit has three units, which are evenly distributed along the circumferential direction of the fixing ring.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The portable waterproof coating metering spraying device provided by this utility model allows the operator to bring multiple protective arms together in non-use states (such as during equipment transportation, storage, or process breaks) to naturally surround the front end of the nozzle, forming a mechanical "protective shield." This integrated design provides circumferential physical protection for the delicate and fragile nozzle without the need for disassembly or additional accessories, effectively preventing nozzle damage caused by accidental bumps, drops, or compression from other tools. This reduces equipment maintenance costs and the risk to coating quality caused by nozzle deformation.

[0018] When needed, the device's state transition is extremely convenient. Simply adjust the position of the movable ring along the nozzle axis to drive all protective arms to move outward synchronously, completely disengaging them from the nozzle's spray cone area. This design ensures that the protective structure does not obstruct or interfere with the paint atomization path, spray fan shape, or coverage area during operation, achieving "invisibility upon retraction" and guaranteeing the integrity and effectiveness of the spraying operation.

[0019] During the spraying process, the positioning arm is fixed in position within the groove of the fixing ring, and combined with the adjustable tilting mechanism of the movable arm, the user can pre-set the deployment angle of the protective arm precisely. At this point, the support block at the end of the protective arm becomes a reliable physical contact point. During application, simply touching or holding the support block at a certain distance from the work surface assists in determining the spraying distance, aligning the spraying center point, and, when working at close range or on complex surfaces, prevents the nozzle from directly impacting obstacles by ensuring the support block contacts obstacles before the nozzle does. Attached Figure Description

[0020] Figure 1 A schematic diagram of the portable waterproof coating quantitative spraying device provided by this utility model;

[0021] Figure 2 A schematic diagram of the second configuration of the portable waterproof coating quantitative spraying device provided by this utility model;

[0022] Figure 3 A schematic diagram of the third configuration of the portable waterproof coating quantitative spraying device provided by this utility model;

[0023] Figure 4 A schematic diagram of the fourth configuration of the portable waterproof coating quantitative spraying device provided by this utility model;

[0024] Figure 5 A schematic diagram of the protective support unit structure of the portable waterproof coating quantitative spraying device provided by this utility model.

[0025] The markings in the diagram are explained as follows:

[0026] 1. Spray gun; 11. Nozzle; 12. Metering paint cup; 13. Atomizing assembly; 14. Trigger handle; 15. Grip; 16. Air hose connector;

[0027] 2. Activity ring;

[0028] 3. Retaining ring; 31. Through groove; 32. Positioning bolt;

[0029] 4. Protective support unit; 41. Positioning arm; 42. Movable arm; 43. Protective arm;

[0030] 410. Movable groove; 411. Screw; 412. Screw barrel;

[0031] 430. Support block. Detailed Implementation

[0032] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0033] Example 1

[0034] Please refer to Figures 1-5 A portable waterproof coating metering spraying device includes a spray gun 1 and a nozzle 11 located at the output end of the spray gun 1. A movable ring 2 is sleeved on the surface of the nozzle 11. A fixed ring 3 is fixed to the surface of the nozzle 11 on one side of the movable ring 2. A protective support unit 4 is provided on the inner side of the movable ring 2 for assembly with the fixed ring 3.

[0035] The protective support unit 4 includes a positioning arm 41, a movable arm 42, and a protective arm 43. The positioning arm 41, the movable arm 42, and the protective arm 43 are connected end to end in sequence. The surface of the fixing ring 3 is provided with a through groove 31 for the movable arm 42 or the positioning arm 41 to pass through.

[0036] Because the portable waterproof coating quantitative spraying device of this utility model has the above structure, such as Figure 1 As shown, when the movable ring 2 is pulled backward (towards the outer end of the nozzle), each protective arm 43 is driven to retract inward, forming an enclosed protective structure at the front end of the nozzle 11, effectively protecting the nozzle 11 from collision. When the movable ring 2 is pushed forward (towards the spray gun), each protective arm 43 is driven to extend outward, moving away from the spraying area to make room for the spraying operation, while also preparing for subsequent positioning and support functions.

[0037] In non-use situations (such as equipment transport, storage, or process breaks), the operator can bring the multiple protective arms 43 inwards, allowing them to naturally surround the front end of the nozzle 11, forming a mechanical "protective shield." This integrated design provides circumferential physical protection for the delicate and fragile nozzle 11 without the need for disassembly or additional accessories, effectively preventing nozzle damage caused by accidental bumps, drops, or pressure from other tools. This reduces equipment maintenance costs and the risk to coating quality caused by nozzle deformation.

[0038] Example 2

[0039] The portable waterproof coating metering spraying device provided in Example 1 has been further optimized, specifically, as follows: Figure 4As shown, one end of the positioning arm 41 has a movable groove 410, and one end of the movable arm 42 is placed in the movable groove 410. A screw 411 is fixed to the side wall of the movable groove 410, and a screw cylinder 412 is threadedly connected to the outer side of the positioning arm 41. The screw cylinder 412 passes through the movable arm 42 and is threadedly connected to the screw 411.

[0040] Because the portable waterproof coating metering spraying device of this utility model has the above structure, by rotating the screw cylinder 412, it can form a threaded connection with the screw 411, thereby further locking the movable arm 42 in the movable groove 410. Figure 4 As shown, after the positioning arm 41 slides within the through groove 31, the protective arm 43 can rotate relative to the movable arm 42. The angle of the support block 430 can be flexibly adjusted.

[0041] Through the above operations, during the spraying process, the positioning arm 41 is fixed in position within the through groove 31 of the fixing ring. Combined with the tilting and adjusting nature of the movable arm 42, the user can pre-set and precisely set the unfolding angle of the protective arm 43. At this time, the support block 430 at the end of the protective arm 43 becomes a reliable physical contact point. During construction, simply touching or holding the support block 430 at a certain gap from the working surface can assist in adjusting the spraying distance, assist in aligning the spraying center point, and prevent the nozzle from directly hitting obstacles when working at close range or on complex surfaces.

[0042] Example 3

[0043] The portable waterproof coating metering spraying device provided in Example 2 has been further optimized, such as... Figure 3 As shown, the end of the movable arm 42 away from the movable groove 410 is movably connected to the protective arm 43 through a resistance shaft, and a support block 430 is fixed on the inner side of the protective arm 43.

[0044] The surface of the fixed ring 3 is threaded with a positioning bolt 32 at the position corresponding to the movable groove 410.

[0045] The protective support unit 4 has three units, which are evenly distributed along the circumference of the fixing ring 3.

[0046] Because the portable waterproof coating metering spraying device of this utility model has the above structure, the positioning bolt 32 can be locked and fixed after the radial position of the protective support unit 4 is adjusted, preventing displacement due to vibration during construction. At the same time, the three equally spaced protective support units 4 can provide stable and uniform three-point support for the spray gun, ensuring that it can maintain balance on complex construction surfaces and preventing shaking of the spraying path due to unstable support.

[0047] Example 4

[0048] The portable waterproof coating metering spraying device provided in Example 3 has been further optimized, such as... Figure 1 As shown, the top of the spray gun 1 is provided with a metering paint cup 12, the spray gun 1 is provided with an atomizing component 13 near the nozzle 11, and the bottom of the spray gun 1 is provided with a trigger handle 14.

[0049] The spray gun 1 is provided with a handle 15 near the trigger handle 14, and the bottom of the handle 15 is provided with an air pipe connection nozzle 16 that communicates with the atomizing component 13.

[0050] The air pipe connector 16 is used to connect to an external air compressor unit via an air pipe. It should be noted that the input air (which needs to be separated from oil and water and pressure regulated) is composed of a corresponding air tank, a three-stage filter combination, and a pressure regulating valve, etc. This is a mature existing technology and does not need to be further elaborated in this embodiment.

[0051] Because the portable waterproof coating metering spraying device of this utility model has the above structure, it constitutes a complete portable spraying operation system. The metering coating cup 12 is convenient for carrying and metering small batches of coating for metered spraying, and the atomizing component 13, in conjunction with an external air source, can fully atomize the coating. The above-mentioned atomizing component is one of the core functional components of the spray gun. Its interior typically contains one or more atomizing air channels, a coating channel, and a precise fluid control valve (such as a needle valve system). When compressed air is connected from the air pipe connector 16, the high-pressure airflow forms a high-speed jet near the nozzle 11 outlet, mixes with the coating flowing out from the metering coating cup 12, and breaks it down and disperses it into fine mist particles. This is a mature existing technology and does not need to be further elaborated in this embodiment.

[0052] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0053] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; conversely, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A portable waterproof paint dosing and spraying device, characterized in that, It includes a spray gun (1) and a nozzle (11) located at the output end of the spray gun (1). A movable ring (2) is fitted on the surface of the nozzle (11). A fixed ring (3) is fixed to the surface of the nozzle (11) on one side of the movable ring (2). A protective support unit (4) is provided on the inner side of the movable ring (2) for assembly with the fixed ring (3). The protective support unit (4) includes a positioning arm (41), a movable arm (42) and a protective arm (43). The positioning arm (41), the movable arm (42) and the protective arm (43) are connected end to end in sequence. The surface of the fixing ring (3) is provided with a through groove (31) for the movable arm (42) or the positioning arm (41) to pass through.

2. A portable, waterproof paint metering and spraying device according to claim 1, wherein, One end of the positioning arm (41) is provided with a movable groove (410), and one end of the movable arm (42) is placed in the movable groove (410).

3. A portable, water-resistant paint metering and spraying device according to claim 2, wherein, The side wall of the movable groove (410) is fixed with a screw (411), and the outer side of the positioning arm (41) is threaded with a screw cylinder (412). The screw cylinder (412) passes through the movable arm (42) and is threadedly connected to the screw (411).

4. The portable, waterproof paint metering and spraying device of claim 2, wherein, The end of the movable arm (42) away from the movable groove (410) is movably connected to the protective arm (43) through a resistance shaft, and a support block (430) is fixed on the inner side of the protective arm (43).

5. The portable, waterproof paint metering and spraying device of claim 2, wherein, The surface of the fixed ring (3) is threaded with a positioning bolt (32) at the position corresponding to the movable groove (410).

6. The portable, waterproof paint metering and spraying device of claim 1, wherein, The top of the spray gun (1) is provided with a metering paint cup (12), the spray gun (1) is provided with an atomizing component (13) near the nozzle (11), and the bottom of the spray gun (1) is provided with a trigger handle (14).

7. A portable, waterproof paint metering and spraying device according to claim 6, wherein, The spray gun (1) has a handle (15) near the trigger handle (14), and the bottom of the handle (15) has an air pipe connector (16) that communicates with the atomizing component (13).

8. A portable, waterproof paint metering and spraying device according to claim 7, wherein, The air pipe connector (16) is used to connect to an external air compressor unit via an air pipe.

9. The portable, waterproof paint metering and spraying device of claim 1, wherein, The protective support unit (4) has three units, and the three protective support units (4) are evenly distributed along the circumferential direction of the fixing ring (3).

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