Integral bottom plug no-wash paint canister

Abstract

The application discloses an integrated bottom plug no-washing paint spraying pot, and relates to the technical field of paint spraying pot. The spraying pot body is connected to the top of the spraying pot base; the bottom of the spraying pot base is connected with a bottom plug, and the spraying pot base and the bottom plug are in an integrated structure; the top of the spraying pot body is provided with a gas permeation hole, and the gas permeation hole of the spraying pot body is movably connected with a gas permeation valve plug assembly; the gas permeation valve plug assembly comprises an elastic connecting piece and a valve plug; the valve plug is connected to the center of the elastic connecting piece opposite to the gas permeation hole; the valve plug is configured to be in an open state with a preset gap from the gas permeation hole when the paint spraying gun sprays paint, and in a closed state in plug-in connection with the gas permeation hole when the paint spraying gun stops spraying paint.

Description

Technical Field

[0001] This application belongs to the technical field of spray gun oil cans, specifically relating to an integrated bottom-stopper no-wash paint spray can. Background Technology

[0002] As a commonly used tool in painting operations, the spray gun has an oil can for storing paint, coatings and other painting media, which is a key component to ensure continuous operation of the spray gun.

[0003] To prevent the evaporation, leakage, and contamination of external impurities, existing spray gun oil cans are typically designed as sealed structures, supplying the medium only through the oil outlet channel connected to the spray gun. The problems with these sealed spray gun oil cans are as follows: First, as the coating medium inside the can is gradually consumed, the internal space increases. If air cannot be replenished in time, the internal pressure will gradually fall below the external atmospheric pressure, creating a negative pressure state. Furthermore, temperature changes in the coating environment can cause the gas inside the can to contract, further exacerbating the negative pressure. When the negative pressure difference reaches a certain threshold, for oil cans made of flexible plastic, the external atmospheric pressure will directly act on the outer wall of the can, causing irreversible dents and deformation. This not only affects the appearance of the oil can but may also block the oil outlet channel, causing interruptions in the spray gun's material supply and severely impacting the continuity of the coating operation. For oil cans made of rigid materials, although significant deformation is less likely, negative pressure will increase the oil outlet resistance, hindering the flow of the coating medium and leading to problems such as spray interruptions and uneven atomization, thus reducing coating quality. Utility Model Content This application provides an integrated bottom-stop, no-wash paint sprayer to solve the problem that external atmospheric pressure can directly act on the outer wall of the paint can, causing irreversible dents and deformations, which not only affect the appearance integrity of the paint can but may also block the oil outlet channel, causing interruption of the spray gun's material supply.

[0004] The technical solution adopted in this application is as follows: An integrated bottom-plug no-wash paint sprayer, connected to a paint spray gun, includes: a sprayer body and a sprayer base; the sprayer body is connected to the top of the sprayer base; a bottom plug is connected to the bottom of the sprayer base, and the sprayer base and the bottom plug are integrated into one structure. The top of the spray bottle body has a vent hole, and a vent valve plug assembly is movably connected to the vent hole. The vent valve plug assembly includes an elastic connector and a valve plug. The valve plug is connected to the center of the elastic connector opposite the vent hole. The valve plug is configured to be in an open state with a preset gap when the spray gun sprays paint, and in a closed state with an inserted connection when the spray gun stops spraying paint.

[0005] This application discloses an integrated bottom-plug no-wash paint sprayer for connection to a paint spray gun. The paint sprayer includes a sprayer body and a sprayer base connected to the bottom of the sprayer body. Preferably, the bottom periphery of the sprayer body is threaded, and the inner periphery of the sprayer base is provided with a threaded groove that mates with the thread, allowing the sprayer base to connect to the sprayer body. A bottom plug is connected to the bottom of the sprayer base. Traditionally, the bottom plug is inserted into the oil hole of the sprayer base; however, in this application, the bottom plug and sprayer base are connected as an integrated structure, allowing direct connection between the sprayer base and the spray gun. A vent is provided at the top of the sprayer body. The purpose of the vent is to allow external gas to enter the inner cavity of the sprayer body during use, thereby creating air pressure on the paint and preventing the sprayer body from collapsing inwards or becoming locally crushed. This prevents increased oil flow resistance, obstructed flow of the coating medium, and spray defects. This invention avoids issues such as flow interruption and uneven atomization. By creating a vent, the air pressure inside the spray bottle remains constant, matching atmospheric pressure. This allows the paint inside the bottle to be smoothly sprayed outwards through the spray gun without collapsing, ensuring continuous and efficient paint output and improving spraying efficiency. Furthermore, the vent valve assembly includes an elastic connector and a valve plug. The elastic connector is flexible and can move relative to the top of the spray bottle, causing the valve plug to open or close relative to the vent. When the valve plug is open relative to the vent, a pre-set gap is formed between the valve plug and the top surface of the vent. This gap allows communication between the vent and the outside, while the valve plug prevents dust, particles, and other impurities from entering the vent and contaminating the paint inside the spray bottle, thus preventing wear and tear and extending the lifespan of the spray bottle.

[0006] The valve plug includes a valve plug cap, a reinforcing member, and a valve plug rod; the middle part of the valve plug rod is connected to the elastic connecting member, one end of the valve plug rod extends outward and is connected to the valve plug cap, and the other end of the valve plug rod extends toward the vent hole; the reinforcing member is connected to the valve plug rod, one end of the reinforcing member extends to the bottom of the valve plug cap, and the other end of the reinforcing member extends to the top surface of the elastic connecting member.

[0007] In this application, the valve plug includes a valve plug cap and a valve plug rod. The valve plug rod is connected to the side of the valve plug cap facing the spray bottle body. The valve plug rod is used to block or open the vent hole. During the use of the spray bottle body, the valve plug rod is pulled out of the vent hole by holding the elastic connector or the valve plug cap. Under the action of the elastic connector, the valve plug rod is separated from the vent hole by a preset gap. This ensures that the spray bottle body is connected to the outside atmosphere, preventing the spray bottle body from collapsing due to low internal air pressure, thus allowing paint to be sprayed smoothly from the spray gun. It also prevents external dust and other impurities from entering the vent hole under the blocking effect of the valve plug cap, ensuring the quality of the paint. The reinforcing rod is connected to the valve plug rod and between the valve plug cap and the elastic connector. It not only enhances the tightness of the connection between the valve plug cap and the valve plug rod, but also further supports the valve plug cap, allowing the valve plug cap to maintain a certain gap relative to the vent hole under the support of the elastic connector and the reinforcing rod, ensuring the normal and continuous output of paint.

[0008] When the spray bottle body is not needed to work, the valve plug rod is inserted into the vent hole by pressing the valve plug cap. At this time, the elastic connector is in a compressed state. When the spray bottle body needs to work, the compressed elastic connector is released by lifting the valve plug cap. Under the reset action of the elastic connector, the valve plug cap can maintain the preset gap between itself and the vent hole.

[0009] The top surface of the valve plug cap is provided with a plurality of first grooves arranged circumferentially and second grooves arranged radially. The first grooves and the second grooves are interconnected, so that the top of the valve plug cap forms a plurality of hexahedral protrusions.

[0010] In this application, the top surface of the valve plug cap is provided with a first groove and a second groove. The first groove can be distributed circumferentially on the top surface of the valve plug cap, and the second groove can be distributed radially on the top surface of the valve plug cap. The purpose of connecting the first groove and the second groove is to form a hexahedral protrusion in the shape of a hexahedron on the top of the valve plug cap, thereby increasing the roughness of the top surface of the valve plug cap, which is beneficial to increasing the friction between the operator's hand and the valve plug cap, and quickly operating the valve plug cap.

[0011] The radial dimension of the valve plug cap is larger than the radial dimension of the valve plug rod.

[0012] The spray bottle body has a cone-shaped structure.

[0013] The radial dimension of the spray bottle body gradually decreases from the bottom to the top.

[0014] The top of the spray bottle body is connected to a conical part, which is a ring-shaped protrusion connected to the periphery of the spray bottle body, so that the top of the spray bottle body has an inwardly recessed positioning end face.

[0015] In this application, the top of the spray bottle body is provided with a conical part, and the conical part is protruded on the top surface of the spray bottle body, so that the top surface of the spray bottle body forms an inwardly recessed positioning end face, thereby forming an installation position for the vent valve plug assembly, which plays a role in protecting the vent valve plug assembly. Moreover, by providing a protruding conical part, it is also convenient for workers to hold the conical part to install and position the spray bottle body.

[0016] The conical part has multiple grooves on its circumference.

[0017] In this application, the purpose of providing multiple grooves on the periphery of the conical part is to facilitate storage of the conical part. The grooves can be matched with the positioning parts to fix the conical part to the positioning parts, making the conical part easy to store and preventing it from easily tilting. Furthermore, by providing multiple grooves, it is also beneficial to allow water to flow out through the multiple grooves when there is water accumulation on the top surface of the spray bottle body, avoiding long-term water retention.

[0018] The positioning end face is connected to a first positioning protrusion and a second positioning protrusion; the first positioning protrusion and the second positioning protrusion are separated by a preset distance.

[0019] In the solution of this application, the purpose of setting a first positioning protrusion and a second positioning protrusion separated by a preset distance on the positioning end face is to facilitate the installation of the vent valve plug assembly at a certain distance above the top surface of the spray bottle body, so that the vent valve plug assembly can have a relative movement distance relative to the vent hole, so that the valve plug rod is at a preset gap from the vent hole.

[0020] The elastic connector is connected between the first positioning protrusion and the second positioning protrusion, such that the elastic connector is higher than the positioning end face by a preset distance.

[0021] In the solution of this application, an elastic connector is connected between the first positioning protrusion and the second positioning protrusion. The elastic connector can be set at a preset height relative to the top surface of the spray bottle body by the first positioning protrusion and the second positioning protrusion, thereby reserving space for the valve stem to move relative to the vent hole.

[0022] A positioning boss protruding from the positioning end face is connected above the vent hole. The inner cavity of the positioning boss is connected to the vent hole to form an insertion channel for the valve plug to be inserted into the vent hole.

[0023] In this application, a positioning boss protruding above the vent hole is connected. The positioning boss is higher than the top surface of the vent hole by a preset height, and at the same time forms a barrier around the vent hole to further prevent external dust or particulate matter from entering the vent hole. Moreover, the valve plug rod can be inserted into the vent hole through the positioning boss, thereby forming a valve plug insertion channel. The insertion channel further enhances the contact area between the vent hole and the valve plug rod, thereby further improving the connection sealing and connection strength.

[0024] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows: 1. This application discloses an integrated bottom-plug self-cleaning paint sprayer for connection to a paint spray gun. The paint sprayer includes a sprayer body and a sprayer base connected to the bottom of the sprayer body. Preferably, the bottom periphery of the sprayer body is threaded, and the inner periphery of the sprayer base is provided with a threaded groove that matches the thread, so that the sprayer base is connected to the sprayer body. A bottom plug is connected to the bottom of the sprayer base. Traditionally, the bottom plug is inserted into the oil hole of the sprayer base. However, in this application, the bottom plug and the sprayer base are connected to form an integrated structure, which allows direct connection of the sprayer base to the spray gun. A vent is provided on the top of the sprayer body. The purpose of the vent is to allow external gas to enter the inner cavity of the sprayer body through the vent during the use of the paint sprayer, thereby creating air pressure on the paint and preventing the sprayer body from denting inward or being locally crushed, thus preventing increased oil flow resistance, poor flow of the coating medium, and spraying problems. This invention addresses issues such as paint flow interruption and uneven atomization. By creating a vent, the air pressure inside the spray bottle remains constant at atmospheric pressure, allowing the paint inside to flow smoothly through the spray gun without collapsing, thus ensuring continuous and efficient paint output and improving spraying efficiency. Furthermore, the vent valve assembly includes an elastic connector and a valve plug. The elastic connector is flexible and can move relative to the top of the spray bottle, causing the valve plug to open or close relative to the vent. When the valve plug is open relative to the vent, a pre-set gap is formed between the valve plug and the top surface of the vent. This gap allows the vent to connect to the outside while preventing dust, particles, and other impurities from entering the vent and contaminating the paint inside the spray bottle. This also prevents wear between the valve plug and the spray bottle, extending the lifespan of the spray bottle. Attached Figure Description

[0025] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1This is a schematic diagram of the structure of an integrated bottom-stopper no-wash paint sprayer according to one embodiment of this application; Figure 2 This is a schematic diagram of the top structure of the spray bottle body of an integrated bottom-stopper no-wash paint spray bottle according to one embodiment of this application; Figure 3 This is a partial structural diagram of the top of the spray bottle body of an integrated bottom-stop no-wash paint spray bottle according to one embodiment of this application. In the picture, 1. Sprayer bottle body; 2. Vent hole; 3. Vent valve plug assembly; 31. Flexible connector; 32. Valve plug; 4. Valve plug cap; 5. Reinforcing member; 6. Valve plug rod; 7. Hexahedral protrusion; 8. First groove; 9. Second groove; 10. Conical part; 11. Groove; 12. First positioning protrusion; 13. Second positioning protrusion; 14. Positioning boss. Detailed Implementation

[0026] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0027] Furthermore, it should be understood in the description of this application that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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 application.

[0028] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," 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 communication connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0029] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "implementation," "example," "a particular embodiment," "example," or "specific example," etc., indicate that the specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0030] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.

[0031] This application relates to an integrated bottom-stopper no-wash paint spray bottle, such as... Figure 1-3 As shown, it is connected to a paint spray gun and includes: a spray bottle body 1 and a spray bottle base; the spray bottle body 1 is connected to the top of the spray bottle base; a bottom plug is connected to the bottom of the spray bottle base, and the spray bottle base and the bottom plug are integrated into one structure. The top of the spray bottle body 1 is provided with a vent hole 2, and a vent valve plug assembly 3 is movably connected to the vent hole 2 of the spray bottle body 1. The vent valve plug assembly 3 includes an elastic connector 31 and a valve plug 32. The valve plug 32 is connected to the center of the elastic connector 31 opposite to the vent hole 2. The valve plug 32 is configured to be in an open state with a preset gap with the vent hole 2 when the spray gun sprays paint, and in a closed state with a plug-in connection with the vent hole 2 when the spray gun stops spraying paint.

[0032] This application discloses an integrated bottom-plug no-wash paint sprayer for connection to a paint spray gun. The paint sprayer includes a sprayer body 1 and a sprayer base connected to the bottom of the sprayer body 1. Preferably, the bottom periphery of the sprayer body 1 is threaded, and the inner periphery of the sprayer base is provided with a threaded groove that mates with the thread, allowing the sprayer base to connect to the sprayer body 1. A bottom plug is connected to the bottom of the sprayer base. Traditionally, the bottom plug is inserted into the oil hole of the sprayer base; however, in this application, the bottom plug and sprayer base are connected as an integrated structure, allowing direct connection between the sprayer base and the spray gun. A vent 2 is provided at the top of the sprayer body 1. The purpose of the vent 2 is to allow external gas to enter the inner cavity of the sprayer body 1 during use, thereby creating air pressure on the paint and preventing the sprayer body 1 from collapsing inwards or becoming locally crushed. This prevents increased oil flow resistance, poor flow of the coating medium, and issues such as spray interruption and uneven atomization. The present application addresses these issues by creating a vent hole 2, ensuring that the air pressure inside the spray bottle body 1 remains the same as atmospheric pressure. This allows the paint inside the spray bottle body 1 to be smoothly sprayed out through the spray gun without being crushed, achieving continuous and smooth paint output and improving paint spraying efficiency. Furthermore, the vent valve plug assembly 3 of this application includes an elastic connector 31 and a valve plug 32. The elastic connector 31 is elastic and can move relative to the top of the spray bottle body 1, thereby causing the valve plug 32 to block or open relative to the vent hole 2. When the valve plug 32 is open relative to the vent hole 2, a preset gap is formed between the valve plug 32 and the top surface of the vent hole 2. This preset gap allows the vent hole 2 to communicate with the outside, and the valve plug 32 prevents external dust, particles, and other impurities from entering the vent hole 2 and contaminating the paint inside the spray bottle body 1, thus preventing wear between the valve plug 32 and the spray bottle body 1 and extending its service life.

[0033] It should be noted that the spray bottle body of this application may be made of materials such as high-density polyethylene, polypropylene, polyamide, and polycarbonate, and is not limited to the materials listed in this application.

[0034] Furthermore, an annular protrusion is connected to the bottom periphery of the spray bottle body 1, and a thread is connected to the annular protrusion, which is connected to the threaded groove of the spray bottle base through the thread.

[0035] The valve plug 32 includes a valve plug cap 4, a reinforcing member 5, and a valve plug rod 6; the middle part of the valve plug rod 6 is connected to the elastic connecting member 31, one end of the valve plug rod 6 extends outward and is connected to the valve plug cap 4, and the other end of the valve plug rod 6 extends toward the vent hole 2; the reinforcing member 5 is connected to the valve plug rod 6, one end of the reinforcing member 5 extends to the bottom of the valve plug cap 4, and the other end of the reinforcing member 5 extends to the top surface of the elastic connecting member 31.

[0036] In this application, the valve plug 32 includes a valve plug cap 4 and a valve plug rod 6. The valve plug rod 6 is connected to the side of the valve plug cap 4 facing the spray bottle body 1. The valve plug rod 6 is used to block or open the vent hole 2. During the use of the spray bottle body 1, the valve plug rod 6 is pulled out of the vent hole 2 by holding the elastic connector 31 or the valve plug cap 4. Under the action of the elastic connector 31, the valve plug rod 6 is separated from the vent hole 2 by a preset gap, thereby ensuring that the spray bottle body 1 is connected to the outside atmosphere and that the spray bottle body 1 will not experience problems due to low internal air pressure. The crushing phenomenon allows paint to be smoothly sprayed from the spray gun, and also prevents external dust and other impurities from entering the vent hole 2 under the blocking effect of the valve plug cap 4, ensuring the quality of paint use; the reinforcing rod is connected to the valve plug rod 6 and between the valve plug cap 4 and the elastic connector 31, which can not only enhance the tightness of the connection between the valve plug cap 4 and the valve plug rod 6, but also further support the valve plug cap 4, so that the valve plug cap 4 can maintain a certain gap relative to the vent hole 2 under the support of the elastic connector 31 and the reinforcing member 5, ensuring the normal and continuous output of paint.

[0037] When the spray bottle body 1 is not needed to work, the valve plug rod 6 is inserted into the vent hole 2 by pressing the valve plug cap 4. At this time, the elastic connector 31 is in a compressed state. When the spray bottle body 1 needs to work, the compressed elastic connector 31 is released by lifting the valve plug cap 4 upward. Under the reset action of the elastic connector 31, the valve plug cap 4 can maintain the preset gap with the vent hole 2.

[0038] The top surface of the valve plug cap 4 is provided with a plurality of first grooves 8 arranged in the circumferential direction and second grooves 9 arranged in the radial direction. The first grooves 8 and the second grooves 9 are interconnected, so that the top of the valve plug cap 4 forms a plurality of hexahedral protrusions 7.

[0039] In this application, the top surface of the valve plug cap 4 is provided with a first groove 8 and a second groove 9. The first groove 8 can be distributed circumferentially on the top surface of the valve plug cap 4, and the second groove 9 can be distributed radially on the top surface of the valve plug cap 4. The purpose of connecting the first groove 8 and the second groove 9 is to form a hexahedral protrusion 7 in the shape of a hexahedron on the top of the valve plug cap 4, thereby increasing the roughness of the top surface of the valve plug cap 4, which is beneficial for the operator to increase the friction between the hand and the valve plug cap 4 and to operate the valve plug cap 4 quickly.

[0040] The first groove 8 and the second groove 9 have a U-shaped structure.

[0041] The radial dimension of the valve plug cap 4 is larger than the radial dimension of the valve plug rod 6.

[0042] The spray bottle body 1 has a cone-shaped structure.

[0043] The radial dimension of the spray bottle body 1 gradually decreases from the bottom to the top.

[0044] The top of the spray bottle body 1 is connected to a conical part 10, which is a ring-shaped protrusion connected to the periphery of the spray bottle body 1, so that the top of the spray bottle body 1 has an inwardly recessed positioning end face.

[0045] In this application, a conical portion 10 is provided on the top of the spray bottle body 1, and the conical portion 10 is protruded on the top surface of the spray bottle body 1, so that the top surface of the spray bottle body 1 forms an inwardly recessed positioning end face, thereby forming an installation position for the vent valve plug assembly 3, which plays a role in protecting the vent valve plug assembly 3. Moreover, by providing the protruding conical portion 10, it is also convenient for the staff to hold the conical portion 10 to install and position the spray bottle body 1.

[0046] The conical portion 10 has multiple grooves 11 on its circumference.

[0047] In this application, the purpose of providing multiple grooves 11 on the periphery of the conical part 10 is to facilitate the storage of the conical part 10. The grooves 11 can be matched with the positioning parts to fix the conical part 10 to the positioning parts, making the conical part 10 easy to store and preventing it from easily tilting. Furthermore, by providing multiple grooves 11, it is also beneficial to allow water to flow out through the multiple grooves 11 when there is water accumulation on the top surface of the spray bottle body 1, thus avoiding long-term water retention.

[0048] A first positioning protrusion 12 and a second positioning protrusion 13 are connected to the positioning end face; the first positioning protrusion 12 and the second positioning protrusion 13 are separated by a preset distance.

[0049] In the solution of this application, the purpose of setting the first positioning protrusion 12 and the second positioning protrusion 13 at a preset distance on the positioning end face is to facilitate the installation of the vent valve plug assembly 3 at a certain distance above the top surface of the spray bottle body 1, so that the vent valve plug assembly 3 can have a relative movement distance relative to the vent hole 2, so that the valve plug rod 6 is at a preset gap from the vent hole 2.

[0050] An elastic connector 31 is connected between the first positioning protrusion 12 and the second positioning protrusion 13, such that the elastic connector 31 is higher than the positioning end face by a preset distance.

[0051] In the solution of this application, an elastic connector 31 is connected between the first positioning protrusion 12 and the second positioning protrusion 13. The elastic connector 31 can be set at a preset height relative to the top surface of the spray bottle body 1 by the first positioning protrusion 12 and the second positioning protrusion 13, thereby reserving space for the valve stem to move relative to the vent hole 2.

[0052] A positioning boss 14 protruding from the positioning end face is connected above the vent hole 2. The inner cavity of the positioning boss 14 is connected to the vent hole 2, forming an insertion channel for the valve plug 32 to be inserted into the vent hole 2.

[0053] In this application, a positioning boss 14 protruding from the positioning end face is connected above the vent hole 2. The positioning boss 14 can be higher than the top surface of the vent hole 2 by a preset height, and at the same time form a barrier around the vent hole 2 to further prevent external dust or particulate matter and other impurities from entering the vent hole 2. Moreover, the valve plug rod 6 can be inserted into the vent hole 2 through the positioning boss 14, thereby forming an insertion channel for the valve plug 32. The setting of the insertion channel further enhances the contact area between the vent hole 2 and the valve plug rod 6, thereby further improving the connection sealing and connection strength.

[0054] For any parts not mentioned in this application, existing technologies may be used or referenced.

[0055] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0056] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. An integrated bottom-stop, no-wash paint spray bottle, connected to a paint spray gun, characterized in that... include: The spray bottle body and the spray bottle base; The spray bottle body is connected to the top of the spray bottle base; the bottom of the spray bottle base is connected to a bottom plug, and the spray bottle base and the bottom plug are integrated into one piece. The top of the spray bottle body has a vent hole, and a vent valve plug assembly is movably connected to the vent hole. The vent valve plug assembly includes an elastic connector and a valve plug. The valve plug is connected to the center of the elastic connector opposite the vent hole. The valve plug is configured to be in an open state with a preset gap when the spray gun sprays paint, and in a closed state with an inserted connection when the spray gun stops spraying paint.

2. The one-piece bottom-stopper no-wash paint sprayer according to claim 1, characterized in that, The valve plug includes a valve plug cap, a reinforcing member, and a valve plug rod; the middle part of the valve plug rod is connected to the elastic connecting member, one end of the valve plug rod extends outward and is connected to the valve plug cap, and the other end of the valve plug rod extends toward the vent hole; the reinforcing member is connected to the valve plug rod, one end of the reinforcing member extends to the bottom of the valve plug cap, and the other end of the reinforcing member extends to the top surface of the elastic connecting member.

3. The one-piece bottom-stopper no-wash paint sprayer according to claim 2, characterized in that, The top surface of the valve plug cap is provided with a plurality of first grooves arranged circumferentially and second grooves arranged radially. The first grooves and the second grooves are interconnected, so that the top of the valve plug cap forms a plurality of hexahedral protrusions.

4. The one-piece bottom-stopper no-wash paint sprayer according to claim 2, characterized in that, The radial dimension of the valve plug cap is larger than the radial dimension of the valve plug rod.

5. The one-piece bottom-stop no-wash paint sprayer according to claim 1, characterized in that, The spray bottle body has a conical structure; the radial dimension of the spray bottle body gradually decreases from the bottom to the top.

6. The one-piece bottom-stopper no-wash paint sprayer according to claim 1, characterized in that, The top of the spray bottle body is connected to a conical part, which is a ring-shaped protrusion connected to the periphery of the spray bottle body, so that the top of the spray bottle body has an inwardly recessed positioning end face.

7. The one-piece bottom-stop no-wash paint sprayer according to claim 6, characterized in that, The conical part has multiple grooves on its circumference.

8. The one-piece bottom-stopper no-wash paint sprayer according to claim 6, characterized in that, The positioning end face is connected to a first positioning protrusion and a second positioning protrusion; the first positioning protrusion and the second positioning protrusion are separated by a preset distance.

9. The one-piece bottom-stopper no-wash paint sprayer according to claim 8, characterized in that, The elastic connector is connected between the first positioning protrusion and the second positioning protrusion, such that the elastic connector is higher than the positioning end face by a preset distance.

10. The one-piece bottom-stop no-wash paint sprayer according to claim 6, characterized in that, A positioning boss protruding from the positioning end face is connected above the vent hole. The inner cavity of the positioning boss is connected to the vent hole to form an insertion channel for the valve plug to be inserted into the vent hole.

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