A two-component spray can

Abstract

This utility model belongs to the field of aerosol can technology, specifically disclosing a two-component aerosol can, including a can body. The can body is internally divided from top to bottom by a partition to form a raw material chamber and an additive chamber. The partition extends and bends into the raw material chamber to form a guide tube. The additive chamber is connected to the raw material chamber through the guide tube. A plug is sealed at the additive outlet of the guide tube. A nozzle is installed at the top of the can body, and a female valve for pushing the plug into the raw material chamber is installed at the bottom of the can body. A cover is provided at the bottom of the can body, and a press cap for the female valve is installed on the cover and partially exposed. In this utility model, the partition extending into the raw material chamber to form a guide tube makes the additive flow smoother and reduces the resistance to the additive entering the raw material chamber; placing the plug at the additive outlet makes it easier for the operator to push out the plug; and installing the press cap on the cover and partially exposing it allows the user to directly press the female valve without removing the cover.

Description

Technical Field

[0001] This utility model belongs to the field of spray can technology, and particularly relates to a two-component spray can. Background Technology

[0002] Spray cans, as a common packaging and spraying equipment, are widely used in cosmetics, coatings, cleaning agents, and many other fields. Two-component spray cans, in particular, hold a significant market position due to their ability to mix two different raw materials before or immediately after spraying, thereby producing specific properties or effects. Existing two-component spray cans typically employ internal partitions to divide the can into different chambers for storing the raw materials and additives separately, allowing for mixing and spraying when needed. However, existing two-component spray cans have the following drawbacks: (a) Impaired flow of additives In existing two-component spray can structures, the additive outlet of the separator often bends and extends into the additive chamber to form a guide tube. While this design guides the flow of additives to some extent, it also introduces serious problems. The presence of the guide tube makes the flow path of the additives tortuous and complex, increasing the resistance to the additives entering the raw material chamber. Especially when the additive viscosity is high or the flow rate requirement is high, the inner tube can cause the additives to flow poorly, failing to enter the raw material chamber in a timely and sufficient manner to mix with the raw materials, thus affecting the quality and performance of the final sprayed mixed liquid.

[0003] (ii) Difficulty in pushing out the plug

[0004] In existing two-component spray cans, the stopper is typically located in the center of the feed tube. This layout makes operation extremely inconvenient when the stopper needs to be ejected to mix the additives and raw materials. Due to the limited space in the feed tube, operators find it difficult to apply sufficient and uniform force to the stopper accurately, leading to difficulty in ejection, and even the possibility that the stopper may become stuck in the feed tube. This not only affects the normal use of the spray can but may also result in the additives and raw materials not being mixed in a timely manner, causing product waste.

[0005] (iii) The operation of the male valve is cumbersome.

[0006] Existing two-component spray cans use a male valve to eject the stopper, and the male valve's press cap is typically located inside the cap at the bottom of the can. Before using the spray can, the user needs to open the cap to access the press cap and press the male valve to eject the stopper and mix the additives and raw materials. This method of operation increases the steps and complexity of use, especially in situations requiring rapid use of the spray can, such as emergency rescue and on-site construction. The process of opening the cap can waste valuable time and affect efficiency.

[0007] Therefore, the inventors dedicated themselves to designing a spray can to solve the above problems. Utility Model Content

[0008] The purpose of this invention is to provide a two-component spray can that has the advantages of smooth agent flow, convenient plug ejection, and simple valve operation, which can better meet the needs of the market and users.

[0009] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A two-component spray can includes a can body. The interior of the can body is divided from top to bottom by a partition to form a raw material chamber and an additive chamber. The partition bends and extends into the raw material chamber to form a guide tube. The additive chamber is connected to the raw material chamber through the guide tube. A plug is sealed to the additive outlet of the guide tube. A nozzle for spraying the mixed liquid in the raw material chamber is installed at the top of the can body. A female valve for pushing the plug into the raw material chamber is installed at the bottom of the can body. A cover is provided at the bottom of the can body. A pressing cap of the pressing end of the female valve is installed on the cover and partially exposed in the cover.

[0010] As an improvement of the two-component spray can of this utility model, the cover body is provided with a through hole in the center to form an annular shape, and the press cap is located in the through hole.

[0011] As an improvement of the two-component spray can of this utility model, the plug is T-shaped and sealed and attached to the auxiliary agent outlet of the feed tube.

[0012] As an improvement of the two-component spray can of this utility model, the guide cylinder and the separator are integrally formed from the same metal material. The auxiliary agent outlet edge of the guide cylinder is rolled outward to form a first rolled edge with an annular cross-section, and the plug is attached to the first rolled edge.

[0013] As an improvement of the two-component spray can of this utility model, the can body includes a can body, a bottom cover and a top cover. The can body is cylindrical, and the top cover and the bottom cover are respectively placed on the top and bottom of the can body. The separator is located inside the can body.

[0014] As an improvement to the two-component spray can of this utility model, the bottom opening edge of the separator and the bottom opening edge of the can body are both engaged with the edge of the bottom cover.

[0015] As an improvement of the two-component spray can of this utility model, the bottom opening edge of the separator is rolled outward to form a closed ring with a U-shaped cross section, the bottom opening edge of the can body is rolled outward to form a closed ring with a U-shaped cross section, the edge of the bottom cover is rolled outward to form a closed ring with a spiral cross section, and the third and second hooks are both engaged with the fourth hook.

[0016] As an improvement of the two-component spray can of this utility model, a portion of the bottom cover protrudes into the auxiliary agent cavity and forms an annular groove at the bottom of the bottom cover.

[0017] As an improvement of the two-component spray can of this utility model, the bottom cover has a mounting port at its center, the female valve is sealed and installed in the mounting port, and the edge of the mounting port is curled to form a second rolled edge, which is located in the through hole of the press cover.

[0018] As an improvement of the two-component spray can of this utility model, the bottom opening edge of the top cover is bent upward to form a cover groove and then rolled outward to form a closed ring with a spiral cross-section, forming a fifth coiled hook. The top opening edge of the can body is rolled outward to form a closed ring with a U-shaped cross-section, forming a first coiled hook. The first coiled hook and the fifth coiled hook are engaged.

[0019] Compared with the prior art, in the two-component spray can of this utility model, the separator extends into the raw material chamber to form a guide tube, and the additive chamber is directly connected to the raw material chamber through the guide tube, making the flow path of the additive smoother and reducing the resistance of the additive entering the raw material chamber; the plug is set at the additive outlet of the guide tube, rather than in the guide tube, making it easier for the operator to push out the plug; the press cap is installed on the cover and partially exposed, so that the user can press the female valve directly without removing the cover, improving the convenience of operation and better meeting the needs of the market and users. Attached Figure Description

[0020] Figure 1 This is a partial enlarged cross-sectional view of the two-component spray can of this utility model; Figure 2 yes Figure 1 Enlarged view of point A in the middle; Figure 3 yes Figure 1 Enlarged view of point B in the middle; Figure 4 yes Figure 1 Enlarged view of point C in the middle; Figure 5 This is an enlarged cross-sectional view of the tank body and the partition of this utility model; Figure 6 yes Figure 5 Enlarged view at point D; Figure 7 yes Figure 5 Enlarged view at point E in the middle; Figure 8 This is an exploded perspective view of the tank body and the partition in this utility model; Figure 9This is another exploded perspective view of the tank body and the partition in this utility model; Figure 10 This is an enlarged cross-sectional view of the can body of this utility model; Figure 11 This is an enlarged cross-sectional view of the top cover of this utility model; Figure 12 This is an enlarged cross-sectional view of the separator of this utility model; Figure 13 This is an enlarged cross-sectional view of the bottom cover of this utility model; Figure 14 This is a three-dimensional enlarged view of the cover of this utility model.

[0021] Illustration: 1. Tank body; 11. First coiled hook; 12. Second coiled hook; 2. Divider; 21. Additive outlet; 22. First rolled edge; 23. Third coiled hook; 24. Feed guide cylinder; 3. Bottom cover; 31. Mounting port; 32. Groove; 33. Second rolled edge; 34. Fourth coiled hook; 4. Top cover; 41. Mounting hole; 42. Third rolled edge; 43. Fifth coiled hook; 44. Cover groove; 5. Tank body; 51. Raw material chamber; 52. Additive chamber; 6. Cover body; 61. Through hole; 7. Female valve; 71. Valve stem; 72. Valve sealing cup; 721. Fixing tube; 73. Spring; 74. Push rod; 8. Plug body; 81. Sealing ring; 9. Press cover; 91. Nozzle; 911. Spray nozzle. Detailed Implementation

[0022] The embodiments of this utility model are described in detail below with reference to the accompanying drawings. The drawings are for reference and illustration only and do not constitute a limitation on the scope of patent protection of this utility model.

[0023] Reference Figures 1 to 14 A two-component spray can includes a can body 5, a separator 2, a female valve 7, a nozzle 91, a cover 6, and a plug 8. The interior of the can body 5 is divided from top to bottom by the separator 2 to form a raw material chamber 51 and an additive chamber 52. The separator 2 bends and extends into the raw material chamber 51 to form a guide tube 24. The additive chamber 52 is connected to the raw material chamber 51 through the guide tube 24. The plug 8 is sealed at the additive outlet 21 of the guide tube 24. The nozzle 91 is installed on the top of the can body 5 and is used to spray the mixed liquid in the raw material chamber 51. The female valve 7 is installed on the bottom of the can body 5 and is used to push the plug 8 into the raw material chamber 51. The cover 6 is placed on the bottom of the can body 5. The pressing cap 9 of the pressing end of the female valve 7 is installed on the cover 6 and is partially exposed on the cover 6.

[0024] Reference Figure 1 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 and Figure 13 The tank body 5 includes a tank body 1, a bottom cover 3 and a top cover 4. The top cover 4 and the bottom cover 3 are respectively placed on the top and bottom of the tank body 1. The separator 2 is located inside the tank body 1. The bottom cover 3, the female valve 7, the separator 2 and the plug 8 together form the additive cavity 52. ​​The separator 2, the tank body 1, the top cover 4 and the nozzle 91 together form the raw material cavity 51.

[0025] Reference Figure 1 , Figure 4 , Figure 8 , Figure 9 and Figure 10 The can body 1 is cylindrical in shape and made of metal. The top and bottom of the can body 1 are hollowed out. The bottom opening edge of the can body 1 is rolled outward to form a closed ring and the cross section (i.e., the axial cross section) is U-shaped. The top opening edge of the can body 1 is rolled outward to form a closed ring and the cross section (i.e., the axial cross section) is U-shaped.

[0026] Reference Figure 5 , Figure 7 , Figure 8 , Figure 9 , Figure 10 and Figure 11 The top cover 4 is generally shaped like a frustum. The top of the top cover 4 has a mounting hole 41. The bottom of the top cover 4 is hollowed out. The bottom opening edge of the top cover 4 bends upward to form a cover groove 44 and then curls outward to form a closed ring with a spiral cross section (i.e., axial cross section) and a fifth hook 43. The first hook 11 and the fifth hook 43 are engaged to engage the top cover 4 with the tank body 1. The edge of the mounting hole 41 at the top of the top cover 4 curls outward to form a closed ring with a circular cross section (i.e., axial cross section) and a third rolled edge 42. The nozzle 91 is installed at the mounting hole 41 at the top of the top cover 4. The nozzle 91 can be an existing spray head, such as the valve with a valve nozzle in the Chinese utility model patent for a two-component storage and mixing device (application number: 201922380549.9). The suction tube of the nozzle 91 of this utility model extends into the raw material chamber 51.

[0027] Reference Figure 1 , Figure 4 and Figure 13The bottom cover 3 has an installation opening 31 at its center along its axial direction, forming an annular shape. The bottom cover 3 is made of metal material. A part of the bottom cover 3 protrudes into the additive cavity 52 and forms an annular groove 32 at the bottom of the bottom cover 3. The groove 32 surrounds the installation opening 31 in a circle. The bottom edge of the bottom cover 3 curls outward to form a closed annular shape and a fourth spiral hook 34 with a cross-section (i.e., axial cross-section). The edge of the installation opening 31 of the bottom cover 3 curls inward into the groove 32 to form a closed annular shape and a second spiral edge 33 with a cross-section (i.e., axial cross-section) of annular.

[0028] Reference Figure 1 , Figure 4 , Figure 5 , Figure 7 , Figure 8 , Figure 9 and Figure 12 The top and bottom of the separator 2 are hollowed out. The sidewall of the separator 2 is arc-shaped. The separator 2 is made of metal. The bottom opening edge of the separator 2 is rolled outward to form a closed ring with a U-shaped cross section (axial cross section) and a third hook 23. The third hook 23 and the second hook 12 are both engaged with the fourth hook 34 (the third hook 23 is sleeved outside the second hook 12) so that the bottom opening edge of the separator 2 and the bottom opening edge of the can body 1 are engaged with the bottom edge of the bottom cover 3. The guide cylinder 24 is set on the top of the separator 2 along the axial direction of the separator 2. The guide cylinder 24 and the separator 2 are integrally formed from the same metal material. The edge of the additive outlet 21 at the top of the guide cylinder 24 is rolled outward to form a first rolled edge 22 with a ring-shaped cross section (i.e., axial cross section).

[0029] Reference Figure 1 and Figure 2 The plug body 8 is T-shaped and is sealed and hung at the additive outlet 21 of the feed tube 24. Specifically, the upper diameter of the plug body 8 is larger than the lower diameter. A sealing ring 81 is fitted on the lower end of the plug body 8. The plug body 8 is hung on the first rolled edge 22 (the upper end of the plug body 8 is located outside the feed tube 24) and is sealed and connected to the inner wall of the feed tube 24 through the sealing ring 81.

[0030] Reference Figure 1 and Figure 3Because traditional spray cans typically use a male valve with a pin at the bottom to push out the stopper 8, and the pin protrudes from the bottom of the male valve, the spray can cannot stand upright on the ground or table after the bottom cap is removed. Therefore, the spray can of this invention uses a female valve 7 at the bottom. The bottom of the female valve 7 is flat, allowing the spray can to stand upright on the ground or table even with the bottom cap 6 removed. The female valve 7 is installed at the mounting opening 31 of the bottom cap 3, and the pressing cap 9 is located directly below the female valve 7. The female valve 7 includes a push rod 74, a fixing tube 721, a valve sealing cup 72, and a spring 73. The valve sealing cup 72 is sealed and fitted onto the second rolled edge 33 of the bottom cover 3. The fixing tube 721 is located in the auxiliary agent cavity 52 and is vertically locked into the insertion port of the valve sealing cup 72. The fixing tube 721 is sealed and connected to the valve sealing cup 72. The push rod 74 is located in the auxiliary agent cavity 52. ​​The lower end of the push rod 74 is inserted into the fixing tube 721 and is elastically connected to the fixing tube 721 through the spring 73. The spring 73 is located in the fixing tube 721 and fitted onto the push rod 74. The upper end of the push rod 74 is close to the plug body 8. The entire push rod 74 is located directly below the plug body 8. The female valve 7 of this utility model can also be other valves available on the market.

[0031] Reference Figure 1 , Figure 3 and Figure 14 The cover 6 has a through hole 61 in the center to form an annular shape. The press cover 9 is located in the through hole 61. A T-shaped valve stem 71 is vertically fixed in the center of the press cover 9. The upper end of the valve stem 71 is rod-shaped. The upper end of the valve stem 71 passes through the valve sealing cup 72 and is inserted into the bottom groove of the push rod 74. The valve stem 71 and the push rod 74 are coaxially arranged. The lower end of the valve stem 71 is located outside the valve sealing cup 72 and is vertically inserted into the press cover 9.

[0032] Reference Figures 1 to 14 The working principle of the two-component spray can of this utility model is as follows: (1) Initial state: The raw material chamber 51 is filled with gas solvent paint, the auxiliary agent chamber 52 is filled with curing agent, and the plug body 8 is sealed and hung on the guide tube 24 of the separator 2. The gas solvent paint and the curing agent are separated by the separator 2 and the plug body 8 to prevent mixing. (2) Activation stage: Press the cover 9, and the cover 9 pushes the push rod 74 to move radially upward along the fixed tube 721 through the valve rod 71. The spring 73 is compressed, and the top of the push rod 74 pushes the plug 8 open, opening the fluid channel, so that the auxiliary agent chamber 52 is connected to the raw material chamber 51, and the curing agent in the auxiliary agent chamber 52 is released. (3) Mixing stage: Invert the entire spray can so that the curing agent in the auxiliary agent chamber 52 enters the raw material chamber 51 through the guide tube 24. The curing agent and the gas solvent paint are mixed in the raw material chamber 51 to form a mixed liquid. (4) Spraying stage: The propellant in the gas phase space at the top of the raw material chamber 51 is vaporized and generates high pressure, which forces the mixture to rise through the suction tube of the nozzle 91 to the aerosol valve. The mixture is sprayed out through the fine hole at the nozzle 911 of the nozzle 91 to form a liquid film. At the same time, the propellant gas expands rapidly in the atmosphere, breaking the liquid film into fine droplets.

[0033] (5) Pressure maintenance and discharge termination: Pressure compensation: As the mixture is discharged, the gas phase space inside the spray nozzle increases, and the propellant continues to vaporize to maintain pressure until the contents are exhausted.

[0034] Automatic sealing: After the aerosol valve is closed, the valve resets to prevent propellant leakage.

[0035] The two-component spray can of this utility model has the following technical effects: (a) Optimizing the flow of additives using feed cylinder 24 In this invention, the separator 2 extends into the raw material cavity 51 to form a guide cylinder 24, and the additive cavity 52 is directly connected to the raw material cavity 51 through the guide cylinder 24. This design makes the flow path of the additive smoother and reduces the resistance of the additive entering the raw material cavity 51. The guide cylinder 24 can effectively guide the additive to flow into the raw material cavity 51 quickly and evenly, ensuring that the additive can contact the raw material in a timely and sufficient manner when mixing is required, thereby improving the mixing effect and the quality of the sprayed liquid.

[0036] (ii) Position 8 of the plug body facilitates its ejection.

[0037] This invention positions the plug 8 at the additive outlet 21 of the feed tube 24. This arrangement allows the operator to apply force to the plug 8 more conveniently and accurately when pushing it out. Since the plug 8 is located at the outlet of the feed tube 24, the operator can operate the plug 8 directly from the outside, without having to fumble around in the narrow inner tube space, greatly improving the efficiency and success rate of pushing out the plug 8.

[0038] (iii) The design of the pressing cover 9 on the female valve 7 improves the ease of operation.

[0039] This invention improves the design of the pressing cap 9 on the female valve 7 by installing the pressing cap 9 on the cover body 6 and partially exposing it. This design allows the user to press the female valve 7 directly without removing the cover body 6. When using the spray can, the user only needs to gently press the exposed pressing cap 9 to push out the stopper 8 to mix the additives and raw materials, greatly simplifying the operation and improving efficiency.

[0040] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of protection of the present utility model. Therefore, any equivalent changes made in accordance with the scope of the patent application of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A two-component spray can comprising a can body, characterized in that, The interior of the tank is divided from top to bottom by a partition to form a raw material chamber and an additive chamber. The partition bends and extends into the raw material chamber to form a guide tube. The additive chamber is connected to the raw material chamber through the guide tube. A plug is sealed to the additive outlet of the guide tube. A nozzle for spraying the mixed liquid in the raw material chamber is installed at the top of the tank. A female valve for pushing the plug into the raw material chamber is installed at the bottom of the tank. A cover is provided at the bottom of the tank. The pressing cap of the pressing end of the female valve is installed on the cover and partially exposed in the cover.

2. The two-component spray can according to claim 1, characterized in that The cover has a through hole in the center to form a ring, and the press cover is located inside the through hole.

3. The two-component spray can according to claim 1, characterized in that The plug is T-shaped and is sealed and attached to the additive outlet of the feed tube.

4. The two-component spray can according to claim 3, characterized in that The feed tube and the separator are integrally formed from the same metal material. The additive outlet edge of the feed tube is rolled outward to form a first rolled edge with an annular cross-section, and the plug is attached to the first rolled edge.

5. The two-component spray can according to claim 1, characterized in that The tank body includes a tank body, a bottom cover, and a top cover. The tank body is cylindrical, and the top cover and the bottom cover are respectively placed on the top and bottom of the tank body. The partition is located inside the tank body.

6. The two-component spray can according to claim 5, characterized in that The bottom opening edge of the separator and the bottom opening edge of the tank body are both engaged with the edge of the bottom cover.

7. The two-component spray can according to claim 6, characterized in that The bottom opening edge of the separator curls outward to form a closed loop with a U-shaped cross-section, forming a third hook. The bottom opening edge of the can body curls outward to form a closed loop with a U-shaped cross-section, forming a second hook. The edge of the bottom cover curls outward to form a closed loop with a spiral cross-section, forming a fourth hook. The third hook and the second hook are both engaged with the fourth hook.

8. The two-component spray can according to claim 5, characterized in that A portion of the bottom cover protrudes into the auxiliary agent cavity and forms an annular groove at the bottom of the bottom cover.

9. The two-component spray can according to claim 8, characterized in that The bottom cover has a mounting opening at its center, and the female valve is sealed and installed in the mounting opening. The edge of the mounting opening is curled to form a second rolled edge, which is located in the through hole of the press cover.

10. The two-component spray can according to claim 5, characterized in that The bottom opening edge of the top cover bends upward to form a cover groove and then curls outward to form a closed ring with a spiral cross-section, forming a fifth coiled hook. The top opening edge of the can body curls outward to form a closed ring with a U-shaped cross-section, forming a first coiled hook. The first coiled hook and the fifth coiled hook are engaged.

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