A portable invisible car paint repair spraying device
The design of the quick-installation device and the anti-damage mechanism solves the problem of the storage tank not being able to be installed and disassembled quickly, improves operating efficiency and protects the nozzle, and realizes the efficient use and durability of the portable spraying device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI SANTUO NEW MATERIAL TECH CO LTD
- Filing Date
- 2025-07-28
- Publication Date
- 2026-07-31
AI Technical Summary
The storage tanks of existing portable spraying devices cannot be quickly installed and disassembled after use, resulting in low operating efficiency and problems such as misalignment and loosening of components during assembly.
The quick installation device, consisting of a combination of a fixed block, a hollow shell, a telescopic clamping wedge, and a No. 1 spring, simplifies the installation process. At the same time, the linkage of components such as the slide rail, moving block, No. 2 spring, sliding plate, square hook, rotating plate, and protective cylinder ensures the stability and protection of the nozzle.
It enables rapid installation and disassembly of the storage tank, improves operational efficiency, reduces the incidence of installation errors, protects the nozzle from impact damage, and extends the service life of the device.
Smart Images

Figure CN224573969U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mechanical engineering, and more specifically, to a portable paint protection film repair and spraying device. Background Technology
[0002] The technical background of a portable invisible car wrap coating repair spraying device is formed under the multiple driving forces of upgrading automotive maintenance needs, breakthroughs in materials technology, and innovation in spraying technology.
[0003] A search revealed that Chinese Patent Publication No. CN213468301U discloses a "Portable Spraying Device for Ship Deck Coatings," comprising a spray gun and a nozzle locking mechanism. The device is characterized by: the bottom of the spray gun being connected to a storage tank via a connecting pipe; a spray tube being fixedly inserted through the left side of the spray gun; a protective cover being provided on the outside of the spray tube; the nozzle locking mechanism being fixed to the left side of the top of the spray gun; and a lifting ring being fixed to the right side of the top of the spray gun. This portable spraying device for ship deck coatings has three nozzles with different nozzle sizes. Before using the device, the fasteners need to be loosened, and the protective cover manually rotated until it deviates from the outside of the spray tube. Tightening the fasteners secures the protective cover. Then, the appropriate nozzle can be selected, removed, and placed on the outside of the left end of the spray tube. The spray gun can then be held by hand for spraying. Using different nozzles produces different spraying effects, resulting in diverse spraying results. However, the following drawbacks still exist:
[0004] (1) The above-mentioned storage tanks cannot be quickly installed and disassembled after use. Traditional installation requires tools, is inefficient, time-consuming and labor-intensive, and reduces efficiency.
[0005] (2) When the above application does not have a standardized quick docking structure, the assembly of components is prone to problems such as misalignment and loosening. Therefore, a portable invisible car wrap paint repair and spraying device is proposed. Utility Model Content
[0006] The purpose of this utility model is to address the problem that storage tanks cannot be quickly installed and disassembled after use.
[0007] To achieve the above-mentioned objectives, this utility model provides the following technical solution:
[0008] The present invention is as follows: a portable invisible car wrap paint repair spraying device, including a spray gun, a quick installation device fixedly installed on the surface of the spray gun, and a fixing block provided inside the quick installation device;
[0009] The fixing block is fixedly installed on the surface of the spray gun. A hollow shell is fixedly installed at the bottom of the fixing block. A telescopic clamping inclined block is slidably installed inside the hollow shell. A spring is set between the hollow shell and the telescopic clamping inclined block. The inclined surface of the telescopic clamping inclined block has a force-saving characteristic, which improves the clamping force and clamping stability.
[0010] As a preferred technical solution of this utility model, a base plate is fixedly installed on the surface of the spray gun, a nozzle is fixedly installed on the front side of the base plate, a connecting pipe is fixedly installed on the rear side of the spray gun, a paint bottle is slidably installed inside the spray gun, a slot is opened on the surface of the paint bottle, and two of each of the fixing block, hollow shell, telescopic clamping inclined block and spring No. 1 are provided, and they are symmetrical along the vertical central axis of the paint bottle. No further details are provided.
[0011] As a preferred technical solution of this utility model, an anti-damage device is fixedly installed on the surface of the spray gun, and a slide rail is provided inside the anti-damage device. The slide rail is fixedly installed on the surface of the spray gun. The rigid constraint of the slide rail and the precise cooperation of the slider ensure that the component moves stably along the preset trajectory.
[0012] As a preferred technical solution of this utility model, a movable block is slidably installed inside the slide rail, a second spring is provided between the slide rail and the movable block, and a sliding plate is fixedly installed on the surface of the movable block. No further details are provided.
[0013] As a preferred technical solution of this utility model, the number of the slide rail, the moving block and the second spring are respectively provided in two, and they are symmetrical along the vertical central axis of the sliding plate. The surface of the slide rail is fixedly installed with a protrusion, and the front side of the protrusion is fixedly installed with a square hook. The square hook reduces costs and provides better adaptability.
[0014] As a preferred technical solution of this utility model, a rotating plate is rotatably mounted on the surface of the base plate, a protective cylinder is fixedly mounted on the surface of the rotating plate, a connecting block is fixedly mounted on the circumferential surface of the protective cylinder, and a rope is provided between the sliding plate and the connecting block. No further details are provided.
[0015] As a preferred technical solution of this utility model, a torsion spring is provided between the rotating plate and the base plate. The number of the slide rail, the moving block, the second spring, the sliding plate, the protrusion, the square hook, the rotating plate, the protective cylinder, the connecting block and the rope are each provided in pairs and are symmetrical along the vertical central axis of the spray gun. The torsion spring transmits force to achieve mechanical linkage.
[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0017] 1. Installation is completed by the hollow shell, telescopic clamping wedge and No. 1 spring pressing and sliding inward against each other. By simplifying the process and optimizing the steps, the installation time can be greatly reduced, the skill requirements of the installers can be reduced, and installation errors caused by unfamiliarity with the operation can be reduced.
[0018] 2. By combining the slide rail, moving block, No. 2 spring, sliding plate, square hook, rotating plate, protective cylinder, connecting block and rope, the rope is pulled backward to drive the protective cylinder to open to both sides. When it is opened to be parallel to the bottom plate, the rope is placed into the square hook for limit. Since the nozzle is easily damaged by collision during storage, the anti-damage device can directly block the impact of external force to avoid the nozzle edge from cracking and the orifice from deforming. Attached Figure Description
[0019] Figure 1 A schematic diagram of the overall structure of a portable paint protection film repair and spraying device provided by this utility model;
[0020] Figure 2 A schematic diagram of the nozzle structure of a portable paint protection film repair spraying device provided by this utility model;
[0021] Figure 3 A schematic diagram of the quick-installation device of a portable invisible car wrap paint repair and spraying device provided by this utility model;
[0022] Figure 4 A schematic diagram of the slide rail and square hook structure of a portable invisible car wrap paint repair and spraying device provided by this utility model;
[0023] Figure 5 This utility model provides a schematic diagram of the anti-damage device of a portable paint protection film repair spraying device.
[0024] The diagram shows: 1. Spray gun; 2. Quick-install device; 20. Fixing block; 21. Hollow shell; 22. Telescopic clamping block; 23. Spring No. 1; 24. Paint bottle; 3. Anti-damage device; 30. Slide rail; 31. Moving block; 32. Spring No. 2; 33. Sliding plate; 34. Protrusion; 35. Square hook; 36. Rotating plate; 37. Protective cylinder; 38. Connecting block; 39. Rope; 4. Base plate; 5. Nozzle; 6. Connecting pipe. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.
[0026] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
[0027] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.
[0028] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0029] like Figure 1 , Figure 3 As shown, this embodiment proposes a portable invisible car wrap paint repair spraying device, including a spray gun 1, a quick installation device 2 fixedly installed on the surface of the spray gun 1, and a fixing block 20 provided inside the quick installation device 2;
[0030] The fixing block 20 is fixedly installed on the surface of the spray gun 1. A hollow shell 21 is fixedly installed at the bottom of the fixing block 20. A telescopic clamping inclined block 22 is slidably installed inside the hollow shell 21. A first spring 23 is set between the hollow shell 21 and the telescopic clamping inclined block 22. The first spring 23 controls the clamping force within a safe range through elastic buffering. The deformation of the spring can also absorb excess force to prevent workpiece deformation or surface damage.
[0031] like Figure 1 , Figure 2 , Figure 3 As shown, in a preferred embodiment, based on the above method, a base plate 4 is fixedly installed on the surface of the spray gun 1, a nozzle 5 is fixedly installed on the front side of the base plate 4, a connecting pipe 6 is fixedly installed on the rear side of the spray gun 1, a paint bottle 24 is slidably installed inside the spray gun 1, a slot is opened on the surface of the paint bottle 24, and two of each of the fixing block 20, hollow shell 21, telescopic clamping inclined block 22 and spring 23 are provided, and they are symmetrical along the vertical central axis of the paint bottle 24. No further additions are made.
[0032] like Figure 1 , Figure 4 As shown, in a preferred embodiment, based on the above method, a further step is to fix an anti-damage device 3 on the surface of the spray gun 1. The anti-damage device 3 has a slide rail 30 inside. The slide rail 30 is fixedly installed on the surface of the spray gun 1. The slide rail 30 reduces the frictional resistance when the object moves, making the movement smoother and avoiding jamming or shaking.
[0033] like Figure 4 As shown, in a preferred embodiment, based on the above method, a moving block 31 is further slidably installed inside the slide rail 30, a second spring 32 is provided between the slide rail 30 and the moving block 31, and a sliding plate 33 is fixedly installed on the surface of the moving block 31. No further details are provided.
[0034] like Figure 4 , Figure 5 As shown, in a preferred embodiment, based on the above method, the number of slide rail 30, moving block 31 and second spring 32 are respectively provided in two, and are symmetrical along the vertical central axis of sliding plate 33. A protrusion 34 is fixedly installed on the surface of slide rail 30, and a square hook 35 is fixedly installed on the front side of protrusion 34. The square hook 35 is convenient to pick up and operate, improving the ease of use.
[0035] like Figure 2 , Figure 5 As shown, in a preferred embodiment, based on the above method, a rotating plate 36 is rotatably mounted on the surface of the base plate 4, a protective cylinder 37 is fixedly mounted on the surface of the rotating plate 36, a connecting block 38 is fixedly mounted on the circumferential surface of the protective cylinder 37, and a rope 39 is provided between the sliding plate 33 and the connecting block 38. The protective cylinder 37 can directly block the impact of external forces and prevent the nozzle 5 from cracking at the edge and deforming at the aperture.
[0036] like Figure 1 , Figure 5 As shown, in a preferred embodiment, based on the above method, a torsion spring is further provided between the rotating plate 36 and the base plate 4. The number of slide rail 30, moving block 31, second spring 32, sliding plate 33, protrusion 34, square hook 35, rotating plate 36, protective cylinder 37, connecting block 38 and rope 39 are each provided in two, and are symmetrical along the vertical central axis of the spray gun 1. The torsion spring provides the reset power to realize the automatic return function.
[0037] Specifically, when using this portable invisible car wrap paint repair spraying device: when the spray gun 1 is in use, the paint bottle 24 is slid upwards for installation. The upper surface of the paint bottle 24 contacts the inclined surface of the telescopic clamping block 22. As the upper surface of the paint bottle 24 continues to slide upwards, the telescopic clamping block 22 presses the first spring 23 inwards. When the telescopic clamping block 22 and the groove inside the paint bottle 24 are at the same horizontal line, the telescopic clamping block 22 slides into the slot of the paint bottle 24 to complete the installation. When the paint bottle 24 is removed, the cylinder of the telescopic clamping block 22 is pulled out, causing the telescopic clamping block 22 to disengage from the slot to complete the removal. This simplifies the installation process, significantly shortens the installation time, and improves efficiency.
[0038] When painting, insert the air tube into the connecting tube 6 to spray paint. Before spraying, slide the sliding plate 33 backward to pull the rope 39 backward, opening the protective cylinder 37 to both sides. When the protective cylinder 37 opens to both sides, it drives the rotating plate 36 to rotate to both sides. When it is pulled parallel to the base plate 4, put the rope 39 into the square hook 35 to limit the rope 39. When the painting is finished, pull the rope 39 out of the square hook 35. As the torsion spring inside the rotating plate 36 resets, it causes the rope 39 to contract. When the rope 39 contracts, the protective cylinder 37 closes, thus protecting the nozzle 5. The protective cylinder 37 prevents the item from being damaged due to accidents, thereby saving the cost of maintenance and replacement.
[0039] All technical features in this embodiment can be freely combined according to actual needs.
[0040] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.
Claims
1. A portable paint protection film repair spraying device, comprising a spray gun (1), characterized in that, The surface of the spray gun (1) is fixedly equipped with a quick installation device (2), and a fixing block (20) is provided inside the quick installation device (2). The fixing block (20) is fixedly installed on the surface of the spray gun (1). A hollow shell (21) is fixedly installed at the bottom of the fixing block (20). A telescopic clamping inclined block (22) is slidably installed inside the hollow shell (21). A spring (23) is provided between the hollow shell (21) and the telescopic clamping inclined block (22).
2. The portable paint protection film repair and spraying device according to claim 1, characterized in that, A base plate (4) is fixedly installed on the surface of the spray gun (1). A nozzle (5) is fixedly installed on the front side of the base plate (4). A connecting pipe (6) is fixedly installed on the rear side of the spray gun (1). A paint bottle (24) is slidably installed inside the spray gun (1). A slot is opened on the surface of the paint bottle (24). Two of each of the fixing block (20), hollow shell (21), telescopic clamping inclined block (22) and spring (23) are provided, and they are symmetrical along the vertical central axis of the paint bottle (24).
3. The portable paint protection film repair and spraying device according to claim 2, characterized in that, The surface of the spray gun (1) is fixedly equipped with an anti-damage device (3), and the inside of the anti-damage device (3) is provided with a slide rail (30), which is fixedly installed on the surface of the spray gun (1).
4. The portable paint protection film repair and spraying device according to claim 3, characterized in that, A movable block (31) is slidably installed inside the slide rail (30), and a second spring (32) is provided between the slide rail (30) and the movable block (31). A sliding plate (33) is fixedly installed on the surface of the movable block (31).
5. A portable paint protection film repair and spraying device according to claim 3, characterized in that, The slide rail (30), the moving block (31) and the second spring (32) are each provided in two quantities and are symmetrical along the vertical central axis of the sliding plate (33). A protrusion (34) is fixedly installed on the surface of the slide rail (30), and a square hook (35) is fixedly installed on the front side of the protrusion (34).
6. The portable paint protection film repair and spraying device according to claim 4, characterized in that, A rotating plate (36) is rotatably mounted on the surface of the base plate (4), a protective cylinder (37) is fixedly mounted on the surface of the rotating plate (36), a connecting block (38) is fixedly mounted on the circumferential surface of the protective cylinder (37), and a rope (39) is provided between the sliding plate (33) and the connecting block (38).
7. A portable paint protection film repair and spraying device according to claim 6, characterized in that, A torsion spring is provided between the rotating plate (36) and the base plate (4). The number of the slide rail (30), the moving block (31), the second spring (32), the sliding plate (33), the protrusion (34), the square hook (35), the rotating plate (36), the protective cylinder (37), the connecting block (38), and the rope (39) are each provided in two, and are symmetrical along the vertical central axis of the spray gun (1).