A paint can
By employing a connecting and sealing structure between the adapter and the spray bottle body, the problems of hygiene pollution and low material utilization during the disassembly and assembly of the spray bottle are solved, achieving convenient disassembly and assembly and efficient material utilization, and enhancing the uniformity of spraying.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO KEHE TOOLS CO LTD
- Filing Date
- 2025-08-13
- Publication Date
- 2026-07-21
AI Technical Summary
Existing paint cans are prone to causing hygiene pollution during disassembly and assembly, have low material utilization, and their limited internal space leads to paint waste.
A paint sprayer was designed, which adopts a snap-fit and sealed connection structure between the adapter and the sprayer body. The adapter is a dome-shaped structure to increase the internal space. It is connected to the spray gun through the snap-fit connection. After the paint is sprayed, it is rotated in the opposite direction to separate, so as to achieve sealed disassembly and assembly and avoid paint residue.
It achieves convenient and hygienic assembly and disassembly, improves material utilization, avoids paint waste, and enhances the uniformity of paint spraying.
Smart Images
Figure CN224525090U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a paint can device for holding paint for use with a paint spray gun, specifically a paint can. Background Technology
[0002] A paint can is used to hold paint and is connected to a spray gun via a connector. Existing paint cans generally consist of a can body and an adapter, which are detachably connected. The spray gun is connected to the adapter via a connector. When in use, the paint in the can is drawn out and atomized by the external force of the spray gun.
[0003] Utility patent CN 219377668 U discloses a spray paint can, including a lid, a first can body detachably connected to the lid, and a second can body detachably connected to the lid. The lid and the second can body are connected by a plug-in connection. After spraying, the lid is removed, leaving the first can body in the second can body. When replacing or discarding the first can body, it needs to be manually removed from the second can body, which can easily cause paint contamination and hygiene problems. In addition, if the force is not controlled properly when plugging and unplugging the lid and the second can body, the paint residue in the first can body can easily spill out.
[0004] US Patent No. US20170203887A1 discloses a liquid storage system for a handheld spray gun and its usage method. The liquid storage system includes a cup-shaped container, a cap, a cap body, and a retaining ring. The cup-shaped container and the cap body need to be connected by the retaining ring. The number of connecting parts increases the mold opening cost and operation steps. In addition, the internal space of the cap body is limited, and paint is easy to be retained, reducing the material utilization rate.
[0005] Furthermore, in existing paint cans, when the internal air is drawn out by the spray gun, causing the first can to collapse, the paint inside cannot be completely sprayed out due to the limited space in the can lid, resulting in material waste. Summary of the Invention
[0006] To address the shortcomings of existing technologies, this utility model provides a paint sprayer that is easy to assemble and disassemble, hygienic, and has a high material utilization rate.
[0007] The above-mentioned objective of this utility model is achieved through the following technical solution:
[0008] This utility model provides a spray paint can, comprising:
[0009] The first pot body contains the second pot body. The first pot body includes a pot body and a locking part. The inner wall of the locking part is provided with multiple sets of locking strips, and each set of locking strips is inclined along the inner wall of the locking part.
[0010] The adapter includes an integrally formed body, a snap-fit connection part, and a sealing connection part. The body has a dome-shaped structure. The snap-fit connection part is adapted to the snap-fit part of the first pot body. The adapter part is detachably connected to the first pot body through the snap-fit connection part. The adapter part is detachably connected to the second pot body through the sealing connection part. The adapter part has a liquid outlet. A spray gun connection part is arranged around the liquid outlet, and the spray gun connection part is detachably connected to the spray gun.
[0011] By adopting the above technical solution, during use, the second container is placed inside the first container. The rotating adapter's locking connection is used to mate it with the locking strip, thus achieving a seal between the adapter and the first container. Simultaneously, the adapter, through its sealing connection, has an interference fit with the upper edge of the second container, preventing paint leakage during use. The adapter is fixedly connected to the spray gun via its spray gun connection. After painting, the adapter is rotated in the opposite direction, disengaging the locking connection and the locking strip, separating the adapter from the first container. At this point, the second container and the adapter remain in an interference fit seal. Pulling the adapter separates the second container from the first container. Separating the two by pinching the outer wall of the second container and pulling the adapter prevents paint from getting inside the second container, making disassembly and assembly convenient and hygienic. Because the adapter has a dome-shaped structure, its internal space is significantly increased, allowing the paint inside the second container to completely enter the dome-shaped space of the adapter, avoiding paint residue and resulting in high material utilization.
[0012] Furthermore, the body of the pot is a cylindrical shape that is wider at the top and narrower at the bottom, with a first opening on the side of the body and a second opening on the bottom.
[0013] By adopting the above technical solution, the uniformity of the paint in the second pot or the remaining amount can be observed through the first and second openings. Additionally, when the adapter is opened, the second pot can be held by pinching it with one hand through the first and second openings while the adapter is pulled to detach it from the second pot.
[0014] Furthermore, a locking platform is integrally provided between the locking part and the body of the pot, and the second pot body extends outward along its opening circumferentially to form an outer edge, which is adapted to the locking platform.
[0015] By adopting the above technical solution, the second pot body is secured to the mounting platform of the first pot body through its outer edge, and the lower surface of the outer edge abuts against the mounting platform. Since the second pot body is a deformable flexible material product, the above operation can provide support for the second pot body.
[0016] Furthermore, the multiple sets of card strips are equally spaced on the inner wall of the card-connecting part, and each set of card strips includes multiple card blocks, which are inclined relative to the inner wall of the card-connecting part.
[0017] By adopting the above technical solution, when the adapter is connected to the first pot body, the adapter is first supported on the locking strip. The adapter is rotated relative to the first pot body, and the locking connection slides along the lower surface of the locking block of each set of locking strips and finally abuts against it. When it is necessary to open the adapter, the adapter is rotated in the opposite direction, and the locking connection disengages from the locking block in turn, so that the adapter is rotated out of the first pot body and the adapter is separated from the first pot body.
[0018] Furthermore, the latching part has multiple windows, which are located below the latching block, and the upper surface of the windows is flush with the lower surface of the latching block.
[0019] By adopting the above technical solution, the opening window is a right-angled trapezoidal shape. Because the locking block is set at an angle relative to the inner wall of the locking part, the longer side of the window is inclined relative to the inner wall of the locking part. The window increases the contact area between the locking part and the locking part, making the connection between the adapter and the first pot body more stable.
[0020] Furthermore, ribs are provided between adjacent windows, and the ribs protrude from the outer wall of the snap-fit portion.
[0021] By adopting the above technical solution, multiple ribs are formed on the outer wall of the snap-fit part, which increases the friction when the snap-fit part is held, resulting in good grip stability.
[0022] Furthermore, the engaging connection includes multiple sets of arc-shaped ribs, which are inclined relative to the horizontal plane, and the lower end of the arc-shaped ribs is provided with a guide slope.
[0023] By adopting the above technical solution, when the adapter is connected to the first pot body, the lower end of the arc-shaped rib approaches the locking block first when the adapter is rotated relative to the first pot body, and the guide slope of the arc-shaped rib slides into the lower surface of the locking block first and finally abuts against it, thereby increasing the smoothness of the locking connection; when it is necessary to open the adapter, the adapter is rotated in the opposite direction, the arc-shaped rib slides out along the lower surface of the locking block and finally disengages from the locking block, thereby the adapter is rotated out of the first pot body and the adapter is separated from the first pot body.
[0024] Furthermore, the sealing connection part is provided with parallel annular ribs, and the upper end of the second pot body is provided with an annular recess. When the transition part is connected to the second pot body, the lower surface of the sealing connection part abuts against the upper surface of the annular recess.
[0025] By adopting the above technical solution, when the adapter is connected to the second pot body, the sealing connection extends into the upper end of the second pot body until the lower surface of the sealing connection abuts against the upper surface of the annular recess. The sealing connection and the second pot body are interference-fitted, and the annular rib increases the tightness of the connection between the second pot body and the sealing connection. At the same time, the upper surface of the outer edge of the second pot body abuts against the lower surface of the locking connection, and the adapter and the second pot body are sealed together.
[0026] Furthermore, the spray gun connection portion is provided with threads, which are formed on the inner wall and / or outer wall of the spray gun connection portion.
[0027] By adopting the above technical solutions, different paint sprayers or adapters can be adapted to increase the applicability of the product.
[0028] Furthermore, it also includes a filter element, which is detachably connected to the inner wall of the adapter.
[0029] By adopting the above technical solution, when spraying paint, the paint enters the upper space of the dome of the paint transfer part through the filter and is discharged at the outlet, which improves the uniformity and dispersion of paint distribution and avoids the appearance of air bubbles, thereby improving the uniformity of paint spraying.
[0030] In summary, this utility model has at least one of the following beneficial technical effects: The paint can of this utility model is provided with a connecting part, unlike conventional paint cans which are provided with a lid. The connecting part of this utility model not only has the function of a lid but also serves as a connecting part for the spray gun; the dome-shaped design of the connecting part increases its internal space, preventing the paint from not being completely discharged when the second can collapses, thus making full use of the material and increasing efficiency; in addition, the outer wall of the second can can be pinched through the first and second openings to restore its shape or separate it from the connecting part, making disassembly and assembly convenient and hygienic. Attached Figure Description
[0031] Figure 1 This is an exploded view of the overall structure of this embodiment;
[0032] Figure 2 This is a schematic diagram of the overall structure of the first pot body in this embodiment;
[0033] Figure 3 yes Figure 2 Sectional view at BB;
[0034] Figure 4 This is a schematic diagram of the first pot body from another perspective in this embodiment;
[0035] Figure 5 This is a schematic diagram of the overall structure of the second pot body in this embodiment;
[0036] Figure 6 yes Figure 5 Sectional view at EE;
[0037] Figure 7 yes Figure 6 Enlarged view of a section at point D;
[0038] Figure 8 This is a schematic diagram of the overall structure of the adapter in another embodiment;
[0039] Figure 9 yes Figure 8 Sectional view at CC;
[0040] Figure 10 yes Figure 1 Sectional view at point AA;
[0041] Figure 11 This is a top view of the adapter in another embodiment;
[0042] Figure 12 This is a cross-sectional view of the adapter in another embodiment;
[0043] Figure 13 yes Figure 12 A magnified view of a portion of point H in the middle;
[0044] Figure 14 This is a schematic diagram of the connection structure between the first pot body and the adapter in this embodiment;
[0045] Figure 15 yes Figure 14 Sectional view at FF;
[0046] Figure 16 This is a schematic diagram of the structure of the first pot body, the second pot body, and the connecting part in this embodiment;
[0047] Figure 17 yes Figure 16 Sectional view at point GG;
[0048] Figure 18 This is a schematic diagram of the filter element in this embodiment.
[0049] In the diagram, 1. First pot body; 11. Pot body; 111. First opening; 112. Second opening; 12. Snap-fit part; 121. Snap-fit block; 122. Viewing window; 123. Rib; 13. Snap-fit platform; 2. Second pot body; 21. Outer edge; 22. Annular recessed platform; 23. Ventilation part; 3. Adapter part; 31. Main body; 32. Snap-fit connection part; 321. Arc-shaped rib; 3211. Guide slope; 33. Sealing connection part; 331. Annular rib; 332. Sealing flange; 333. Water sealing rib; 34. Liquid outlet; 35. Spray gun connection part; 351. Thread; 36. Snap-fit groove; 37. Snap-fit protrusion; 38. Snap-fit ring; 4. Filter element; 41. Frame; 42. Filter screen. Detailed Implementation
[0050] The present invention will be further described in detail below with reference to the accompanying drawings.
[0051] To facilitate understanding of this utility model by those skilled in the art, the following description is provided in conjunction with the accompanying drawings. Figure 1-18The specific embodiments of this utility model are described below.
[0052] Reference Figure 1 The present invention discloses a spray paint can, which includes a first can body 1, a second can body 2 and an adapter 3. The second can body 2 can be accommodated in the first can body 1. The first can body 1 and the adapter 3 are detachably connected, and the second can body 2 and the adapter 3 are detachably connected.
[0053] The first pot body 1 can be a barrel shape that is larger at the top and smaller at the bottom. The first pot body 1 includes a pot body 11 and a snap-fit part 12.
[0054] A first opening 111 is provided on the side of the pot body 11, and a second opening 112 is provided on the bottom surface of the pot body 11. Through the first opening 111 and the second opening 112, it is possible to observe whether the paint in the second pot body 2 is uniform or to observe the remaining amount. In addition, when the adapter 3 is opened, the second pot body 2 can be held by pinching it with one hand through the first opening 111 and the second opening 112, and the adapter 3 can be pulled to detach it from the second pot body 2.
[0055] Multiple sets of locking strips are provided on the inner wall of the locking part 12, and each set of locking strips is inclined along the inner wall of the locking part 12. In this embodiment, there are four sets of locking strips, which are equally spaced. When the adapter 3 is connected to the first pot body 1 through the locking part 12 in the initial state, the multiple sets of locking strips can support the adapter 3 and prevent the adapter from shifting or tilting. Each set of locking strips includes at least one locking block 121. In this embodiment, each set of locking strips includes three locking blocks 121, and the three locking blocks 121 are inclined along the inner wall of the locking part 12.
[0056] The latching portion 12 also has multiple windows 122, which are located below the latching block 121, and the upper surface of the windows 122 is flush with the lower surface of the latching block 121. In this embodiment, the windows 122 are right-angled trapezoids. Because the latching block 121 is inclined relative to the inner wall of the latching portion 12, the longer side of the window 122 is inclined relative to the inner wall of the latching portion 12. The windows 122 increase the contact area between the latching portion 12 and the connecting portion 3, making the connection between the connecting portion 3 and the first pot body 1 more stable. Ribs 123 are provided between adjacent windows 122. The ribs 123 protrude from the outer wall of the latching portion 12, thereby forming multiple ribs 123 on the outer wall of the latching portion 12. When the latching portion 12 is held, the friction is increased, and the stability of the grip is increased.
[0057] A locking platform 13 is integrally provided between the locking part 12 and the body 11, and the second body 2 is locked onto the locking platform 13 of the first body 1.
[0058] Typically, the second vessel body 2 is made of a plastic transparent material and is deformable, collapsing during the painting process. The second vessel body 2 extends outwards along its opening circumference to form an outer edge 21, which fits into the mounting platform 13. The second vessel body 2 is secured to the mounting platform 13 of the first vessel body 1 via the outer edge 21, with the lower surface of the outer edge 21 abutting against the mounting platform 13. An annular recessed platform 22 is also provided at the upper end of the second vessel body 2.
[0059] Furthermore, to conserve raw materials, in another embodiment, the second container 2 can also be made of a rigid plastic material, thus allowing for repeated use. In this case, a ventilation section 23 is provided at the bottom of the second container 2. Normally, the ventilation section 23 is sealed. When the paint spraying device is connected to the spray gun and the spraying action begins, with the bottoms of the first container 1 and the second container 2 facing upwards, the ventilation section 23 is opened to allow the interior of the second container 2 to communicate with the air. Under the combined action of the paint's own gravity and the suction of the spray gun, the paint inside the second container 2 is sprayed out. When the spraying action is completed, the ventilation section 23 is closed to return the second container 2 to a sealed state to prevent leakage.
[0060] Specifically, the ventilation section 23 includes a ventilation through-hole and a sealing element. The ventilation through-hole is located at the bottom of the second vessel body 2, and the sealing element is fixedly connected to the second vessel body 2, with an interference fit between the sealing element and the ventilation through-hole. The sealing element can be a sealing plug or other push-pull sealing components, which will not be described in detail here.
[0061] The adapter 3 includes an integrally formed body 31, a snap-fit connection part 32, and a sealing connection part 33. The body 31 has a dome-shaped structure to increase the accommodating space within the adapter 3. In this embodiment, the body 31 is as follows: Figure 1 As shown; in another embodiment, the body 31 is as follows Figure 8-9 As shown; the degree of protrusion of the body 31 can be set according to the actual situation. The snap-fit connection part 32 is adapted to the snap-fit part 12 of the first pot body 1. The adapter part 3 is detachably connected to the first pot body 1 through the snap-fit connection part 32. The adapter part 3 is detachably connected to the second pot body 2 through the sealing connection part 33. The adapter part 3 is provided with a liquid outlet 34. A spray gun connection part 35 is provided around the liquid outlet 34. The spray gun connection part 35 is detachably connected to the spray gun.
[0062] The engaging connection part 32 includes multiple sets of arc-shaped ribs 321. The number of arc-shaped ribs 321 is the same as the number of sets of locking strips. In this embodiment, four sets of arc-shaped ribs 321 are provided. The arc-shaped ribs 321 are inclined relative to the horizontal plane, and a guide slope 3211 is provided at the lower end of the arc-shaped ribs 321. When the adapter 3 is connected to the first pot body 1, the arc-shaped rib 321 is supported on the retaining strip of the first pot body 1. Relative to the first pot body 1, the adapter 3 rotates, and the lower end of the arc-shaped rib 321 first approaches the retaining block 121. The guide slope 3211 of the arc-shaped rib 321 first slides into the lower surface of the retaining block 121 and finally abuts against it, thereby increasing the smoothness of the engagement. When it is necessary to open the adapter 3, the adapter 3 is rotated in the opposite direction, and the arc-shaped rib 321 slides out along the lower surface of the retaining block 121 and finally disengages from the retaining block 121, thereby the adapter 3 is rotated out of the first pot body 1 and the adapter 3 is separated from the first pot body 1.
[0063] In this embodiment, the sealing connection part 33 is provided with parallel annular ribs 331. When the adapter part 3 is connected to the second pot body 2, the outer surface of the sealing connection part 33 abuts against the inner surface of the upper end of the second pot body 2, and the annular ribs 331 are pressed between the sealing connection part 33 and the second pot body 2 to form a sealing structure and prevent paint leakage. At the same time, the lower surface of the sealing connection part 33 abuts against the upper surface of the annular recess 22. When the adapter part 3 is connected to the second pot body 2, the sealing connection part 33 extends into the upper end of the second pot body 2 until the lower surface of the sealing connection part 33 abuts against the upper surface of the annular recess 22. The sealing connection part 33 and the second pot body 2 are interference-fitted, and the annular ribs 331 increase the tightness of the connection between the second pot body 2 and the sealing connection part 33. Meanwhile, the upper surface of the outer edge 21 of the second pot body 2 abuts against the lower surface of the engaging connection part 32, and a sealing connection is achieved between the adapter part 3 and the second pot body 2.
[0064] In another embodiment, the sealing connection 33 is provided with an annular sealing flange 332. When the adapter 3 is connected to the second pot body 2, the lower surface of the sealing connection 33 abuts against the upper surface of the annular recess 22. When the adapter 3 is connected to the second pot body 2, the sealing connection 33 extends into the upper end of the second pot body 2 until the lower surface of the sealing connection 33 abuts against the upper surface of the annular recess 22. The sealing connection 33 and the second pot body 2 are interference-fitted, and the sealing flange 332 increases the tightness of the connection between the second pot body 2 and the sealing connection 33. At this time, in order to further improve the sealing performance, an annular water-sealing rib 333 is provided on the lower surface of the locking connection 32. When the upper surface of the outer edge 21 of the second pot body 2 abuts against the lower surface of the locking connection 32, the annular water-sealing rib 333 is pressed between the upper surface of the outer edge 21 and the lower surface of the locking connection 32, thereby achieving a secondary seal between the adapter 3 and the second pot body 2.
[0065] In addition, the lower end of the sealing flange 332 is set as an inclined surface to form a pattern of lower outside and higher inside. When the lower end of the sealing connection part 33 is inserted into the second pot body 2, it can be smoothly introduced into the sealing connection part 33 and adapted to the inner diameter setting of the second pot body 2 which is larger at the top and smaller at the bottom.
[0066] The spray gun connection 35 is connected to the liquid outlet 34, and the spray gun connection 35 is provided with a thread 351. In one embodiment, the thread 351 is formed on the outer wall of the spray gun connection 35, in which case it can be directly or indirectly connected to the spray gun thread 351 through the spray gun link. To increase the firmness of the connection with the spray gun, the spray gun connection 35 is also provided with a retaining ring 38, and the spray gun with the retaining ring can further fix its retaining ring to the retaining ring 38.
[0067] In another embodiment, the spray gun connection 35 has an internal thread at one end and an external thread at the other end to accommodate spray guns of different specifications. The paint can of this invention also includes a filter element 4, which is detachably connected to the inner wall of the adapter 3. Specifically, the filter element 4 includes an annular frame 41 and a filter screen 42, with the filter screen 42 bonded to the frame 41. The inner wall of the adapter 3 has a circumferentially circumferentially formed groove 36, along which a plurality of locking protrusions 37 are provided. In use, the annular frame 41 is engaged within the groove 36 and restrained by the locking protrusions 37, thus the filter element 4 can be securely installed within the internal space of the adapter 3. The filter element 4 can also be removed for use as needed.
[0068] The implementation principle of this embodiment is as follows: During use, the second pot body 2 is placed inside the first pot body 1. The engaging connection 32 of the rotating adapter 3 is rotated to mate with the locking strip of the locking part 12, thereby achieving a seal between the adapter 3 and the first pot body 1. Simultaneously, the adapter 3 is press-fitted with the upper edge of the second pot body 2 via the sealing connection 33 to prevent paint leakage during use. The adapter 3 is fixedly connected to the spray gun via the spray gun connection 35. After painting is completed, the adapter 3 is rotated in the opposite direction, causing the engaging connection 32 to disengage from the locking part 12. When the adapter 3 separates from the first pot body 1, the second pot body 2 and the adapter 3 are still in an interference fit and sealed state. Pulling the adapter 3, the second pot body 2 separates from the first pot body 1 along with the adapter 3. By pinching the outer wall of the second pot body 2 and pulling the adapter 3, the two can be separated without getting paint inside the second pot body 2. The disassembly and assembly are convenient and clean. Because the adapter 3 has a dome-shaped structure, its internal space is significantly increased. The paint inside the second pot body 2 can completely enter the dome-shaped space of the adapter 3, avoiding paint residue and resulting in high material utilization.
[0069] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0070] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0071] The embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of the claims of this utility model.
Claims
1. A spray paint can, characterized in that, include: The first pot body (1) contains the second pot body (2). The first pot body (1) includes a pot body (11) and a snap-fit part (12). The inner wall of the snap-fit part (12) is provided with multiple sets of snap-fit strips, and each set of snap-fit strips is inclined along the inner wall of the snap-fit part (12). The adapter (3) includes an integrally formed body (31), a snap-fit connection part (32), and a sealing connection part (33). The body (31) has a dome-shaped structure. The snap-fit connection part (32) is adapted to the snap-fit part (12) of the first pot body (1). The adapter (3) is detachably connected to the first pot body (1) through the snap-fit connection part (32). The adapter (3) is detachably connected to the second pot body (2) through the sealing connection part (33). The adapter (3) has a liquid outlet (34). A spray gun connection part (35) is arranged around the liquid outlet (34). The spray gun connection part (35) is detachably connected to the spray gun.
2. A spray paint can according to claim 1, characterized in that: The body of the pot (11) is a barrel shape that is larger at the top and smaller at the bottom. The side of the body of the pot (11) has a first opening (111) and the bottom of the body of the pot (11) has a second opening (112).
3. A spray paint can according to claim 1, characterized in that: A locking platform (13) is integrally provided between the locking part (12) and the body of the pot (11). The second pot body (2) extends outward along its opening circumferential direction to form an outer edge (21), which is adapted to the locking platform (13).
4. A spray paint can according to claim 1, characterized in that: The multiple sets of card strips are equally spaced on the inner wall of the card receiving part (12). Each set of card strips includes multiple card blocks (121), and the multiple card blocks (121) are inclined relative to the inner wall of the card receiving part (12).
5. A spray paint can according to claim 4, characterized in that: The latching part (12) has multiple windows (122), which are located below the latch block (121). The upper surface of the window (122) is flush with the lower surface of the latch block (121).
6. A spray paint can according to claim 5, characterized in that: A rib (123) is provided between adjacent windows (122), and the rib (123) protrudes from the outer wall of the snap-fit part (12).
7. A paint sprayer according to any one of claims 1-6, characterized in that: The engaging connection part (32) includes multiple sets of arc-shaped ribs (321), which are inclined relative to the horizontal plane, and the lower end of the arc-shaped ribs (321) is provided with a guide slope (3211).
8. A spray paint can according to claim 7, characterized in that: The sealing connection part (33) is provided with parallel annular ribs (331), and the upper end of the second pot body (2) is provided with an annular recess (22). When the connecting part (3) is connected to the second pot body (2), the lower surface of the sealing connection part (33) abuts against the upper surface of the annular recess (22).
9. A spray paint can according to claim 7, characterized in that: The sealing connection part (33) is provided with a sealing flange (332), and the lower surface of the locking connection part (32) is provided with a water-sealing rib (333). The sealing flange (332) and the water-sealing rib (333) form a secondary sealing structure.
10. A spray paint can according to claim 1, characterized in that: The spray gun connection part (35) is provided with a thread (351), which is formed on the inner wall and / or outer wall of the spray gun connection part (35).
11. A spray paint can according to claim 1, characterized in that: It also includes a filter element (4), which is detachably connected to the inner wall of the adapter (3).