Liquid coating tool capable of automatically discharging liquid

Abstract

A liquid coating tool capable of automatically discharging liquid is specially provided with a liquid adding opening (32) used for adding liquid, a cover does not need to be opened and closed before and after liquid adding, liquid adding is easy and convenient, and liquid discharging is stable through the measures such as arrangement of an air inlet channel (12); accessories such as a drainage valve (30), a backflow hole (23) and a flow control funnel (42) are arranged, so that accumulated liquid at the air inlet channel (12) does not drop disorderly; a limiting rotary tenon (24), positioning convex teeth (29), an indicating arrow (40), scales (15) and the like are arranged, so that the size of a liquid outlet hole in the bottom of the liquid coating container can be accurately and conveniently adjusted through rotation of the liquid control piece (4), and the purpose of adjusting the liquid outlet speed at any time is achieved; and a split charging bin (33) is arranged, so that the liquid is discharged more uniformly.

Description

Technical Field

[0001] The present invention is a tool for applying flowing liquid, including paint, emulsion, etc., to the surface of an object. In particular, when in use, the liquid is first placed in a coating container with a liquid outlet at the bottom, and the liquid outlet speed can be adjusted at any time during the coating operation and the liquid outlet can be automatically adjusted. Background Art

[0002] Generally speaking, liquid coating tools that can automatically dispense liquid include fountain pens, ballpoint pens, fountain brushes and other pens. These liquid coating tools used for writing have long been popularized to achieve automatic liquid dispensing. However, when it is necessary to apply liquids such as paint, hair dye, detergent, etc. to the surface of an object, it is difficult to find liquid coating tools that can automatically dispense liquid for these liquids on the market.

[0003] Many designs of automatic liquid dispensing tools for hair dye, paint, etc. can be retrieved. For example, the Chinese invention patent application "A feedable paint brush" with the existing application number CN201910088881.X designs an automatic liquid dispensing paint brush with a simple structure and a design concept worthy of recognition, but the cover must be added and replaced before and after adding paint, and the bottom hole for dispensing paint must be sealed before adding paint. When applying paint to objects on horizontal surfaces, the paint at the paint outlet will be contained in the paint outlet due to the combined effect of atmospheric pressure and liquid tension, and the paint will not flow down. At this time, the purpose of automatically discharging paint for painting pursued by the design will not be achieved. The structure is simple but not simple enough in actual operation, and after the bristles are worn, the wearing parts cannot be disassembled and replaced.

[0004] Liquid coating operations are widely used in all walks of life and in daily life. Human progress often starts with the improvement of tools. The innovation of tools in other fields is in full swing. At present, there are various shortcomings in the liquid coating tools used for paint, etc., and there are not enough innovative and truly practical varieties. Liquid coating tools that can automatically discharge liquid are more efficient, more uniform, and easier to use than liquid coating tools that need to be manually added from time to time during the coating process. Therefore, it is of great practical significance to realize automatic liquid discharge when coating paint, hair dye, hair conditioner, detergent, shower gel, etc. Summary of the invention

[0005] In order to overcome the shortcomings of the above-mentioned existing coating tools, we have designed a coating tool with automatic liquid discharge that is simple in structure, convenient in coating operation, easy to clean, low in cost and reusable. The coating tool with automatic liquid discharge is mainly composed of a coating container with a liquid discharge hole at the bottom, a coating brush and a liquid control part. The coating container is used to store liquid, the liquid control part is used to adjust the size of the liquid discharge hole, and the coating brush is used to evenly coat the liquid after the liquid is discharged. Since the main part that affects the performance of the coating tool with automatic liquid discharge is the combination of the coating container and the liquid control part, the technical improvement of the present invention is carried out around the optimized combination of the coating container and the liquid control part.

[0006] In order to facilitate the understanding of the specification of the present invention and the identification of the drawings, attention is first drawn to the following situations mentioned in this specification:

[0007] 1. The descriptions of the directions such as up, down, left, right, inside, outside, top, bottom, etc. in this specification are for easy understanding and distinction by comparing with the drawings in the specification, and do not represent the directions of the actual objects described. However, due to the presence of liquid, its physical property of flowing from top to bottom must be utilized or considered in the design, and the description of the up and down directions is difficult to completely avoid in either the claims or the specification. In the descriptions in the claims and the specification, the bottom of the coating container with holes and the part where the coating object is located below the bottom are uniformly described as the bottom, and other parts are described with reference to this. Because the coating tool that can automatically discharge liquid is a dynamic existence when in use, there is no fixed up, down, left, and right, and the position of each component in the description cannot be understood as a limitation of direction.

[0008] 2. In the drawings of this specification, the shapes, positions and sizes are only relative and cannot be used as absolute limitations. For example, after assembly, there are gaps between the shell and the inner shell, between the liquid control part and the bottom of the coating container, between the seal and the shell, between the cover and the shell, etc. This is for the purpose of distinguishing and identifying them in the drawings, but in fact they are close, and therefore should be regarded as close, that is, very close to each other with almost no gap, but can be rotated and displaced.

[0009] 3. A brush is provided below the liquid outlet at the bottom of the coating container described in this specification and its drawings. The brush refers to various materials that directly contact the surface of the object to be coated with liquid or the surface of the bottom of the coating container used for coating liquid during coating. It is the abbreviation of "object for brushing", which includes at least any one or a mixture of comb teeth, bristles, sponges, rollers or cloths. It is emphasized that when the bottom of the coating container is directly used to contact the object to be coated for coating, the surface of the bottom of the coating container is also the brush described in this specification and claims. In practical applications, for example, when applying shampoo or hair dye to curly hair, it is not suitable to use a comb or a brush. In this case, the outer surface of the bottom of the coating container is the brush. Sometimes, the bottom of the coating container can also be designed to be uneven and used to contact the hair for coating. The brush at the bottom of the coating container exemplified in each embodiment is only an example and can be replaced with another type according to the purpose.

[0010] 4. The liquid outlet hole mentioned in this specification refers to a hole on the bottom shell of the coating container through which liquid can be discharged, or a hole formed by overlapping the hole on the shell and the hole of the liquid control member.

[0011] 5. The inlet and outlet of the air inlet channel are described separately only for the convenience of functional distinction. The air inlet channel actually also has the function of entering the liquid, and in some embodiments, it mainly only has the function of entering the liquid. Therefore, it should be particularly noted that the air inlet channel is actually an abbreviation of "a channel for entering air or liquid", and is written as the air inlet channel for the sake of simplicity.

[0012] 6. The main function of the liquid adding port is sometimes only to raise the inlet of the air inlet channel to a position above the bottom of the coating liquid container so that it is not on the same horizontal plane as the liquid outlet. Although liquid can be added from this point, it is not necessary to add liquid from here. For example, liquid can be added to the inner shell of the coating liquid container and then assembled to make it a product pre-filled with liquid for coating. Therefore, the liquid adding port is actually an abbreviation of "the port for air intake or liquid addition". As long as there is a structure with such a function as the air intake or liquid addition port, whether liquid or gas is added from this point, it is the liquid adding port described in this specification and claims.

[0013] The following is a detailed description of the design content. A coating tool that can automatically discharge liquid, the coating container can store liquid, has a liquid discharge hole at the bottom, and a coating object is outside the liquid discharge hole at the bottom of the coating container. The three main improvement schemes adopted by the present invention are:

[0014] In order to prevent the problem that the liquid contained in the liquid outlet hole at the bottom of the coating liquid container does not flow down due to the combined effect of atmospheric pressure and liquid tension, our solution is: 1. The air inlet channel inlet and the liquid outlet hole at the bottom of the coating liquid container are not arranged on the same horizontal plane. 2. Only the distribution of the liquid outlet holes is set to be not on the same horizontal plane, and no air inlet channel is set. Our experiments show that any of the above solutions can make the liquid flow out normally.

[0015] The air inlet passage is open at both ends and hollow inside. One end is located inside the coating liquid container, and air or liquid comes out from here and enters the coating liquid container, so it is hereinafter referred to as the air inlet passage outlet; the other end is located at the lower part of the coating liquid container, and since air or liquid enters the air inlet passage from here and then enters the coating liquid container through the air inlet passage outlet, it is hereinafter referred to as the air inlet passage inlet. The length of the air inlet passage is not limited, and in some embodiments, it can be zero length.

[0016] In order to solve the problems existing in the prior art when adding liquid, we set up a liquid adding port for adding liquid. The designed liquid adding port has two forms according to the changes of the liquid control part. The first liquid adding port is characterized in that the upper part of the coating liquid container is not open, and an enlarged part is set below the inlet of the air inlet channel as the liquid adding port. The liquid adding port is connected to the air inlet channel and has the function of a funnel. The coating liquid container is turned over to add liquid from the liquid adding port. The liquid adding port does not have to be large enough to pour the liquid directly. When the liquid adding port is not too large, it can be set smaller and a funnel can be used to add liquid from here. The second liquid adding port is characterized in that the liquid adding port is set above the coating liquid container. When adding liquid, the hole of the liquid control part can be rotated to the liquid adding port to add liquid. Both of the above schemes can achieve no leakage when adding liquid and no need to open the cover. After adding liquid, there is no need to put the cover back when applying liquid. It is simple and convenient.

[0017] In order to more efficiently adjust the liquid discharge speed during the coating operation, we have designed two solutions for adjusting the liquid discharge speed. The first solution is to set a sliding valve, which can open the outlet of the air inlet channel when coating the flat surface, so that the liquid can be discharged during coating, and the outlet of the air inlet channel is closed when not coating, so that the liquid can be stopped. It is very suitable for coating tools such as dishwashing that do not need to coat upwards. The second solution is to use a rotary displacement liquid control part to move the hole of the liquid control part on the corresponding hole of the shell, so as to adjust the size of the liquid discharge hole at any time.

[0018] On the basis of the above three technical designs, we further optimized them from all aspects, comprehensively and meticulously solved the possible problems, so that the coating tool that can automatically discharge liquid can be truly practical. We chose to adopt the following eight schemes: 1. Although the size or shape of the hole of the coating container and the hole of the liquid control plate are not limited, in the embodiment of adjusting the liquid discharge speed by hand alone, it is preferred that the hole at the bottom of the coating container or one of the holes of the liquid control part is set to a narrow and long shape to increase the operating distance from small to large of the liquid discharge hole, so as to prevent the hand from adjusting too much or too little with a slight movement and being difficult to grasp. 2. Choose to add scales and corresponding indicator arrows to mark the displacement amplitude of the liquid control part, and use them for selection during regulation to achieve the purpose of accurately controlling the size of the liquid discharge hole. 3. Each embodiment can be provided with a sub-packaging bin, and several sub-packaging bins divide the interior of the coating container. There is a liquid discharge hole at the bottom of the sub-packaging bin, and the various parts of the sub-packaging bin are separated by the wall of the sub-packaging bin and are not connected to each other. The provision of a sub-packaging bin can prevent the problem that when the coating liquid container is turned horizontally for coating, the internal liquid all sinks to one place below, thereby increasing the uniformity of the liquid flowing out of the liquid outlet on the coating object. Fourth, a reflux hole is provided as needed. After filling the liquid, when the coating liquid container is turned over so that its bottom is facing downward, the liquid in the air inlet channel is drained to the reflux hole and then flows to the coating object, so that the refluxed liquid does not drip everywhere. Fifth, a drainage valve is provided. When liquid flows out of the inlet of the air inlet channel, the drainage valve can guide the liquid to the reflux hole at the bottom of the coating liquid container. Sixth, a positioning convex tooth or a rotating handle is set on the liquid control part, and the rotation limit tenon is used to limit the range of rotation during rotation, so that the opening and closing of the liquid outlet has a shortcut key. Seventh, in the embodiment where the shell and the inner shell are fitted together, the air inlet channel composed of the air inlet channel groove and the shell is preferred. It is easier to wash and difficult to break than the pipeline-type air inlet channel, and does not need to be installed separately. 8. In the embodiment where the liquid adding port is placed on the side of the bottom of the coating liquid container, it is difficult to prevent the liquid from flowing back from the air inlet channel because it is impossible to set a drainage valve, so the following solution is used to solve it: a. When a pipeline-type air inlet channel is selected, it is installed at the hole on the side of the inner shell body. A corresponding hole is opened on the shell body. To add liquid, the inner shell body is rotated so that the hole on the side of the inner shell body overlaps with the hole on the shell body to form the inlet of the air inlet channel. After adding, the inner shell body is rotated again to stagger the two holes and seal the hole. b. When the air inlet channel formed by the inner shell body and the air inlet channel groove on the shell body is selected, to add liquid, the inner shell body is rotated so that the air inlet channel groove on the shell body faces the hole on the inner shell body. After adding, the inner shell body is rotated so that the hole on it and the air inlet channel groove are staggered and sealed. Optionally, after sealing the hole, a gap is intentionally left between the shell and the inner shell below the sealed hole to allow air permeability without completely sealing the hole, so that the following purposes can be achieved: when adding liquid, the air inlet channel is opened wide to add liquid quickly, and after adding liquid, the air inlet channel is closed or reduced.

[0019] The present invention has many beneficial effects: liquid can be conveniently poured in without opening the lid, which will not stain hands. After pouring in liquid, there is no need to cover the lid. Liquid can be applied by directly turning the bottom of the coating container downward. Liquid automatically flows out during coating, and the size of the liquid outlet hole can be conveniently adjusted at any time. It is very easy to add liquid, and the liquid outlet is evenly distributed, which significantly improves the coating efficiency and coating quality. When the operation is suspended, the bottom can be turned over to store the liquid in the coating container. The liquid will not leak even if it is placed for a long time. There will be no fatigue of frequent dipping of liquid and liquid dripping during coating. It is easy to disassemble and clean, durable, and low in cost. It can be widely used in various application scenarios where liquid needs to be applied, including applying glue, applying paint, dyeing hair, shampooing, hair care, cleaning cars, bathing, laundry, washing dishes, and scrubbing glass windows. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Schematic diagram of the cross section of Example 1

[0021] Figure 2 This is a cross-sectional view of the inner shell of Example 1

[0022] Figure 3 Schematic diagram of the cross section of the liquid control component combined with the air inlet channel in Example 1

[0023] Figure 4 Schematic diagram of the cross section of the housing of Example 1

[0024] Figure 5 Schematic diagram of the cross section when the sliding valve is used in Example 1

[0025] Figure 6 Schematic diagram of the bottom surface of the liquid control member of Example 1

[0026] Figure 7 This is a bottom bottom view of the coating liquid container housing of Example 1

[0027] Figure 8 This is a perspective view of the coating liquid container of Example 1 when the bottom of the shell and the bottom of the liquid control member are overlapped and in a closed hole state

[0028] Fig. 9 This is a bottom view of Example 2

[0029] Fig.10 Schematic diagram of the cross section of Example 2

[0030] Fig.11 This is a schematic diagram of the scale on the handle of Example 1 or Example 2

[0031] Fig.12 This is a perspective view of Example 3

[0032] Fig.13 Schematic diagram of longitudinal section of embodiment 3

[0033] Fig.14 This is a schematic diagram of one end of the lid of Example 3

[0034] Fig.15 This is a schematic diagram of Example 3 when the lid hole and the rotating handle are not provided

[0035] Fig.16 Schematic diagram of a non-circular tubular liquid control member of Example 3

[0036] Fig.17 Schematic diagram of the combination of the non-circular tubular liquid control member and the circular cover in Example 3

[0037] Fig.18 Schematic diagram of the cross section of Example 4

[0038] In the accompanying drawings, 1, shell, 2, inner shell, 3, hole, 4, liquid control part, 5, liquid control part hole, 6, sliding valve, 7, bristles, 8, comb teeth, 9, cover, 10, tenon, 11, convex teeth, 12, air inlet channel, 13, air inlet channel groove, 14, rotating handle, 15, scale, 16, screw, 17, L-shaped mounting port, 18, stopper, 19, notch, 20, indicator arrow, 21, air inlet channel inlet, 22, air inlet channel outlet, 23, reflux hole, 24, rotation limit tenon, 25, liquid filling port edge, 26, handle, 27, filling bin wall, 28, inner edge convex point of inner shell, 29, positioning convex teeth, 30, drainage valve, 31, sponge, 32, liquid filling port, 33, filling bin, 34, large hole at the bottom of shell, 35, sealing cover. DETAILED DESCRIPTION

[0039] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0040] Figure 1 1 is a cross-sectional schematic diagram of embodiment 1, which is a preferred embodiment of a coating tool that can automatically discharge liquid by using a rotary displacement liquid control member 4 to adjust the size of the liquid outlet hole and a drainage valve 30. The liquid control member 4 is provided with a liquid control member hole 5, the shell 1 is in a cylindrical shape, the shell 1 is open at the top, and there are holes 3 and a large hole 34 at the bottom of the shell at the bottom. The bottom of the inner shell 2 is a circular opening, and the bottom of the top is a circle smaller than the opening, extending out of the cover 9, and is used for gripping when twisting the shell 2. The liquid control member hole 5 and the hole 3 at the bottom of the shell 1 are both arranged in a non-recessed place.

[0041] After the liquid control component 4, the air inlet passage 12 and the inner shell 2 are installed in the shell 1, the bottom of the shell 1 supports the above components, the circular mouth of the inner shell 2 is close to the circular inner wall of the shell 1, and the part of the liquid control component 4 where the liquid control component hole 5 is provided is in contact with the part of the bottom of the shell 1 where the hole 3 is provided.

[0042] When the inner housing 2 is rotated, the liquid control member 4 rotates synchronously, so that the liquid control member hole 5 moves on the corresponding hole 3 of the housing.

[0043] The cover 9 is a cover with a circular hole at the bottom, the bottom of the inner shell 2 is exposed above the cover 9, and the circular bottom of the inner shell is close to the edge of the circular hole of the cover 9. There is an L-shaped installation opening 17 on the side of the cover 9. When the tenon 10 on the edge of the shell 1 is inserted into the straight opening of the L-shaped installation opening of the cover 9, and then screwed into the horizontal opening of the L-shaped installation opening, the shell 1 and the inner shell 2 can be buckled together.

[0044] Of course, the inner shell 2 of this embodiment can also be configured to be cylindrical, so that all edges thereof fit closely with the shell 1 .

[0045] The middle part of the liquid control member 4 is recessed upwards, and an air inlet 21 is provided at the bottom of the recess. The middle part of the bottom of the shell 1 is recessed to the edge of the large hole 34 at the bottom of the shell, and the liquid filling port 32 is within the range of the liquid filling port edge 25.

[0046] On the basis of the above, a drainage valve is provided: the upwardly concave portion in the middle of the bottom of the housing 1 does not fit with the upwardly concave portion in the middle of the liquid control part 4, and there is a gap. The drainage valve 30 is located between the large hole 34 at the bottom of the housing and the liquid control part 4, and a return hole 23 is provided at the bottom of the housing 1 below the gap. When the bottom of the coating liquid container is facing downward, the drainage valve 30 will slide down, so that the large hole 34 at the bottom of the housing is completely covered by the drainage valve 30; when the bottom of the coating liquid container is facing upward to add liquid, the drainage valve 30 can slide back again. After sliding back, the drainage valve 30 and the liquid control part 4 are separated by the convex teeth 11 on the drainage valve, forming a gap that allows liquid to flow into the air inlet channel 12. It is also possible to choose to set the convex teeth 11 on the part of the liquid control part 4 where the drainage valve falls, and the effect is the same. A positioning convex tooth 29 is set at the upward concave part in the middle of the liquid control part 4, and a hole is provided on the drainage valve 30 for inserting the positioning convex tooth 29. The length of the positioning convex tooth 29 is set so that it can still extend below the hole of the drainage valve 30 after the drainage valve 30 slides down. A rotation limit tenon 24 is provided on the edge of the large hole 34 at the bottom of the shell body. After the liquid control part 4 is rotated to a set angle, the positioning convex tooth 29 will be blocked by the rotation limit tenon 24. This set angle can usually be selected in three situations: one is when the hole 3 is rotated to be completely closed by the liquid control part hole 5, the second is when the hole 3 and the liquid control part hole 5 overlap to the maximum, and the third is when the hole 3 and the liquid control part hole 5 overlap to the minimum but greater than zero, and when it is not completely closed. The same is true for the following embodiments.

[0047] Alternatively, when the positioning protruding teeth 29 are not required to limit the rotation range of the liquid control member 4, the positioning protruding teeth 29 may not be provided, and the drainage valve 30 does not need to have a hole. The brushing object shown in the figure takes the comb teeth 8 as an example, which can be used to apply liquid in hairdressing. The drainage valve 30 is not a necessary component, such as when applying liquid on a horizontal surface. It can be easily imagined that the cover 9 can also be provided with a screw on an ordinary bottle cap to replace the engagement between the L-shaped mounting opening 17 on the cover and the tenon 10 on the shell. In order to make the liquid control part 4 rotate synchronously when the inner shell 2 rotates, there are many ways to connect the inner shell 2 to the liquid control part 4. In addition to the inner shell 2 engaging the notch 19 on the edge of the liquid control part 4 through the inner shell inner edge protrusion 28 as shown in the figure, at least the following two methods can be selected: First, the liquid control part 4 is combined with the air inlet channel 12 as an integral part, and a flat head is extended at the outlet 22 of the air inlet channel without blocking the air inlet channel 12. When installing, the flat head is directly inserted into the corresponding groove added at the bottom of the upper inner shell 2. Second, a notch is set at the mouth of the inner shell 2, and a protrusion that can be inserted into the notch is set on the side of the liquid control part 4.

[0048] Figure 2 It is a cross-sectional view of the inner shell of Example 1. There is a circular opening below the inner shell 2, and the inner edge protrusion 28 of the inner shell is located on the inner side of the bottom edge of the inner shell 2.

[0049] Figure 3 It is a cross-sectional schematic diagram of embodiment 1 in combination with a liquid control component of an air intake channel. The liquid control component 4 is combined with the air intake channel 12 in the form of a pipe to form an inverted funnel shape. There is a liquid control component hole 5 on the liquid control component 4. A positioning convex tooth 29 is provided at the upwardly concave portion in the middle of the liquid control component 4. The air intake channel 12 is in the shape of a pipe, but is not limited to a circle.

[0050] The liquid control member 4 and the air inlet passage 12 may also be combined and produced as one part.

[0051] Figure 4 1 is a cross-sectional schematic diagram of the housing of Example 1. The housing 1 has a circular opening on the top. The protruding point outside the housing 1 mouth is a tenon 10. The housing 1 has a hole 3 at the bottom. A large housing bottom hole 34 is provided in the middle of the bottom of the housing 1. A rotation-limiting tenon 24 is provided on the side of the large housing bottom hole 34, but it is not shown in this figure. For the setting of the rotation-limiting tenon 24, please refer to Figure 7 and Figure 8 The liquid adding port 32 of this embodiment is within the range of the liquid adding port edge 25 at the recessed bottom of the shell 1, and a reflux hole 23 is provided on the edge of the liquid adding port edge 25.

[0052] Figure 51 is a cross-sectional schematic diagram of the embodiment 1 when the sliding valve is used. In the figure, the portion of the sliding valve 6 that can slide up and down in the air inlet channel 12 in the form of a pipe is thinner than the inner cavity of the air inlet channel 12, so that it does not hinder the air or liquid from entering the air inlet channel 12 during the sliding process or when it is stationary; the portion of the sliding valve 6 that can slide up and down in the air inlet channel 12 in the form of a pipe is also longer than the air inlet channel 12. Its upper end can be in the shape of a sphere, etc., which can seal the outlet 22 of the air inlet channel when the sliding valve 6 falls, so that the liquid outlet below does not discharge liquid; its lower end extends out of the bottom of the coating liquid container, and when coating liquid, it will be lifted up by the object to be coated with liquid, so that the upper end of the sliding valve is also lifted up and leaves the outlet 22 of the air inlet channel, so that air can enter and liquid can be discharged from the liquid outlet below.

[0053] The sliding valve 6 and the drainage valve 30 can be provided separately, or they can be combined and used as one component.

[0054] In this figure, the inner shell 2 is in a cylindrical shape, which is also an optional shape of the inner shell 2 of Embodiment 1. Instead of using a cover 9, a tenon 10 is provided on the bottom edge of the inner shell 2, and an L-shaped mounting opening 17 on the opening of the shell 1 is inserted into the tenon 10. The opening of the L-shaped mounting opening 17 can not only be an opening that penetrates the shell 1, but also an L-shaped groove that retains a small portion of the outer surface of the shell 1 and does not penetrate the shell 1.

[0055] Figure 6 It is a schematic diagram of the bottom surface of the liquid control component of Example 1. The liquid control component 4 has an air inlet 21 at the center, and a positioning convex tooth 29 is provided on the side of the air inlet 21. There are liquid control component holes 5 in other parts. There is a notch 9 at the edge of the liquid control component 4, which is used to engage with the convex point 28 on the inner edge of the inner shell.

[0056] Figure 7 This is a bottom bottom view of the coating container housing of Example 1. At the bottom of the housing 1, comb teeth 8 are distributed on the edge of the hole 3 as a coating object. The hole 3 is preferably made into a shape that gradually increases from small to large according to the arc shape of rotation. The rotation-limiting tenon 24 is located on the edge of the large hole 34 at the bottom of the housing.

[0057] Figure 8 It is a perspective view of the bottom of the shell of the coating liquid container of Example 1 and the bottom of the liquid control member after being overlapped in a closed hole state. When the portion of the bottom surface of the liquid control member 4 where the liquid control member hole 5 is arranged is in contact with the portion of the bottom of the shell 1 where the hole 3 is arranged, the positioning protruding teeth 29 on the liquid control member 4 and the inlet 21 of the air inlet channel are exposed from the large hole 34 at the bottom of the shell. At the bottom of the shell 1, when the left side of the right rotation limit tenon 24 is in contact with the right side of the positioning protruding teeth 29, each liquid control member hole 5 does not overlap with the corresponding hole 3 at the bottom of the shell 1, and is in a closed hole state; when the positioning protruding teeth 29 on the liquid control member 4 rotate toward the left rotation limit tenon 24 and approach the left rotation limit tenon 24, the overlap degree will be the largest.

[0058] Fig. 9This is a bottom view of Example 2, in which a liquid filling port 32 and a reflux hole 23 are provided on the outer side of the bottom of the coating liquid container.

[0059] Fig.10 1 is a cross-sectional view of Embodiment 2, in which the L-shaped mounting opening 17 at the upper opening of the housing 1 is inserted into the tenon 10 on the inner housing 2 and then horizontally rotated to fix the mounting. The sponge 31 is shown as a coating object, and the sponge 31 is mounted on the bottom of the coating liquid container with a bottomless cover 9. Preferably, after the shell 1 is fitted with the inner shell 2 and the liquid control member 4, the inlet channel groove 13 on the shell 1 and the inner shell 2 form a channel through which gas or liquid can flow as the inlet channel 12. The inlet channel groove 13 is located at one end of the liquid filling port 32 and has a hole, which is the inlet channel inlet 21. When adding liquid, the inner shell 2 is rotated so that the inlet channel groove 13 faces the hole on the upper inner shell 2, so that the hole becomes the inlet channel outlet 22. After adding liquid, the inner shell 2 is rotated so that the inlet channel groove 13 on the shell 1 is offset from the hole on the inner shell 2, so that the inlet channel outlet 22 can be sealed. The edge 25 of the liquid filling port on the side of the shell 1 is the liquid filling port 32 of this embodiment. If it is for air intake, after the inlet channel groove 13 is offset from the hole on the inner shell 2, a gap can be left between the shell 1 and the inner shell 2 below the hole on the inner shell 2, and a reflux hole 23 is correspondingly provided below the gap.

[0060] Since the air intake channel 12 of the present embodiment can be completely closed after liquid is added, the length of the air intake channel 12 can also be selected to be zero. When the length of the air intake channel is zero, the hole of the inner shell 2 provided in the liquid filling port 32 is open relative to the hole of the shell 1. These two holes are the air intake channel 12. If these two holes are staggered with each other, they are closed.

[0061] In the embodiment 2, the liquid filling port 32 in the embodiment 1 is changed from being located in the middle of the bottom to being located on the bottom side of the housing 1, and the other parts are basically the same. In the figure, a liquid control hole 5 is provided on the liquid control part 4, and both the housing 1 and the inner housing 2 are barrel-shaped. The housing 1 is open at the top and has a hole 3 at the bottom below. The inner housing 2 is open at the bottom and is combined with the rotating handle 14. There is no hole at the bottom above. The liquid control hole 5 corresponds to the hole 3 at the bottom of the housing 1. The liquid control part 4, the air inlet channel 12 and the inner housing 2 are installed in the housing 1, and the bottom of the housing 1 supports the above components. The liquid control part 4 fits the bottom of the housing 1. The inner housing 2 is rotated, and the liquid control part 4 rotates synchronously, so that the liquid control part hole 5 moves on the corresponding hole 3 of the housing, and the overlap degree of the liquid control part hole 5 and the hole 3 can be adjusted.

[0062] Embodiment 2 has the following advantages over embodiment 1: there is no concave portion at the bottom of the coating liquid container, the liquid outlet holes can be distributed on the entire bottom surface, and the air inlet passage can be sealed after liquid is added.

[0063] Fig.111 is a schematic diagram of the scale on the handle of embodiment 1 or embodiment 2. When the handle 26 is added to embodiment 1 and embodiment 2, a scale 15 is marked above the joint of the handle 26 and the housing 1. The scale 15 can also be set on the upper opening of the housing 1, or on other parts such as the cover 9 close to the rotating handle 14. The rotating handle 14 on the inner housing 2 is twisted and rotated to point the indicating arrow 20 to the two positions when the scale 5 indicates the minimum and maximum values, preferably corresponding to the following respectively. Figure 8 When the forward and reverse rotation positioning protruding teeth 29 hit the rotation limiting tenon 24 as shown.

[0064] Optionally, when the rotating handle 14 is set to be circular or polygonal, a scale 15 is set on it, and then an indicator arrow 20 is engraved on the upper opening of the shell 1, or on the cover 9, or on the joint between the handle 26 and the shell 1 and other parts close to the rotating handle 14, corresponding to the scale 15.

[0065] In the first and second embodiments, when the housing 1 is selected to be a cylindrical shape with one end open, the outer edge of the inner housing 2 is circular, and the inner edge of the housing 1 is also circular. The inner housing 2 and the housing 1 are close to each other at the edges, so that the inner housing 2 and the liquid control member 4 can stably rotate along the set rotation trajectory in the housing 1. When the inner housing 2 and the liquid control member 4 rotate along the defined rotation trajectory in the housing 1, it can be ensured that the hole 5 of the liquid control member corresponds to the hole 3 when rotating, so that the overlap degree of the hole 5 of the liquid control member and the hole 3 can be adjusted during rotation.

[0066] There are many combinations of the inner housing 2 and the housing 1 that can make the inner housing 2 and the liquid control member 4 rotate within the housing 1 according to a defined rotation trajectory. Therefore, there are many optional embodiments for the shapes of the inner housing 2 and the housing 1:

[0067] For example, since the inner shell 2 only needs to rotate a relatively small angle in the shell 1, the shell 1 and the inner shell 2 do not need to be circular. Fig.18 The shell 1 and the liquid control member 4 in the embodiment are in a quadrilateral shape, and the two arc-shaped sides on the shell 1 are set to be longer than the two arc-shaped sides on the inner shell 2. After the inner shell 2 is installed in the shell 1, the two arc-shaped sides on the inner shell 2 and the two arc-shaped sides on the shell 1 can rotate close to each other. The difference between the length of the arc-shaped side of the shell 1 and the length of the corresponding arc-shaped side of the inner shell 2 defines the size of the rotation angle of the inner shell 2 in the shell 1, so that when the inner shell 2 rotates, it also has the function of opening and closing the liquid outlet, which can replace the positioning convex teeth 29 and the rotation-limiting tenon 24 in the embodiment 1. In the second example, the shell 1 can also be in the shape of a barrel, while the inner shell 2 is not in the shape of a round barrel, but has a barrel mouth like a barrel. Fig.15 , Fig.16 One of the shapes of the central control liquid parts. Example 3, such as Figure 1 As shown, the circular mouth of the inner shell 2 is close to the circular inner wall on the bottom edge of the shell 1, and the circular bottom of the inner shell 2 is close to the edge of the circular hole at the bottom of the cover 9 on the periphery, so that the inner shell 2 and the liquid control member 4 rotate in the shell 1 according to the defined rotation trajectory. The above three examples can change the shell 2 into multiple different shapes. The above examples show that the inner shell 2 and the shell 1 can be selected in shapes other than the barrel shape.

[0068] Fig.12 This is a perspective view of Embodiment 3, still taking the brush bristles 7 as an example, in which the liquid control member 4 is in the shape of a circular tube with openings at both ends, and the liquid control member hole 5 on the liquid control member 4 is set in the shape of a single horizontal slit.

[0069] Of course, the liquid control hole 5 can also be configured as a plurality of holes arranged transversely. The shape of the liquid control hole 5 is not limited to the above two types. For example, it can be configured as a saw shape, which has even more advantages.

[0070] The shell 1 is a round barrel with one end open, and a handle 26 is added to the right side of the coating liquid container. The upper edge 25 of the liquid filling port is the liquid filling port 32. The hole 3 of the shell 1 can be set at the bottom or at the side. When the hole 3 is set at the bottom and the side, the liquid control part 4 is also provided with a liquid control part hole 5 corresponding to the holes 3 at these two positions. In this case, the air inlet channel 12 described in the previous embodiments can be omitted, because in this case, the liquid outlet of the coating liquid container formed by the overlapping of the liquid control part hole 5 and the hole 3 on the shell 1 is not on the same plane, and there will be no phenomenon of difficulty in liquid discharge due to atmospheric pressure and liquid tension. The outer surface of the liquid control part 4 is close to the inner surface of the shell 1. A hole is provided at the bottom of the cover 9 to expose the rotating handle 14 on the cover 35. When the hole 5 of the liquid control member is facing upwards towards the liquid filling port 32 on the shell 1, liquid can be added. At this time, the hole 3 is closed by the liquid control member 4. After adding liquid, the liquid control member 4 is rotated until the hole 5 of the liquid control member partially or completely overlaps with the hole 3 on the shell 1, and liquid is discharged for coating. At this time, the liquid filling port 32 is closed by the liquid control member 4.

[0071] Fig.12 The cover 35 and the filling chamber wall 27 are not drawn in order to make them easier to recognize. The cover 35 and the filling chamber wall 27 should exist in the figure. Fig.13 and Fig.14 These two components are explained later in the text, so you can understand them by comparing them comprehensively.

[0072] Fig.133 is a schematic longitudinal section of the third embodiment, in which the two ends of the liquid control member 4 are open and closed by the sealing caps 35. In the specific implementation, the liquid control member 4 can be manufactured as a part that is integrated with the sealing caps 35 at both ends; it can also be preferably manufactured as a part that is integrated with the liquid control member 4 at one end, and the sealing cap 35 and the liquid control member 4 at the other end are detachable and assembled. After the sealing cap 35 is combined with the liquid control member 4, it becomes a combined member that does not leak liquid at the combined part and can drive the liquid control member 4 to rotate while rotating the sealing cap. There are many specific methods to meet this combination requirement, such as: the method of tightening like a bottle cap and a bottle mouth can be selected, or referring to the method of "the inner shell 2 is inserted into the notch 19 of the edge of the liquid control member 4 through the inner edge convex point 28 of the inner shell, so that the inner shell 2 rotates and the liquid control member 4 also rotates synchronously" in the second embodiment, the sealing cap 35 is provided with a notch like the liquid control member 4, and the circular tubular liquid control member 4 is provided with an inner edge convex point accordingly.

[0073] A rotating handle 14 is provided on the sealing cover 35 at one end of the liquid control member 4. The rotating handle 14 is a gripping part for twisting the sealing cover 35 and the liquid control member 4. Its shape and size are not limited to those shown in the figure. For example, a square or round rotating handle 14 is optional. The sealing effect of the right end is not very large, and even the sealing cover 35 at the right end is not required. However, in order to prevent the liquid control member 4 from deforming, it is still better to have sealing covers 35 at both ends. After the barrel-shaped combination composed of the liquid control member 4 and the sealing cover 35 is installed in the barrel-shaped housing 1, it is covered with a cover 9. The way the cover 9 is covered can also be a spiral way of an ordinary bottle cap or other ways such as an L-shaped mounting opening and a tenon.

[0074] The coating liquid container can be divided into a plurality of sub-packaging chambers 33 like bamboo sections. Specific implementation examples of the sub-packaging chambers 33 are as follows:

[0075] 1. Assembled type: taking the liquid control part with two rows of liquid control holes 5 as an example, prepare several circular bottle cap-shaped sub-packaging chamber wall 27 components, the height of the side of the bottle cap-shaped sub-packaging chamber wall 27 components is the width of each sub-packaging chamber 33, and set two notches on the side of the bottle cap-shaped sub-packaging chamber wall 27 components as liquid control holes 5. The shape and size of the bottle cap-shaped component should match the liquid control part 4, so that its periphery is close to the inner surface of the liquid control part 4. When it is pushed into the liquid control part 4, its two notches face the liquid control holes 5 on the liquid control part 4. After it is completely pushed into the liquid control part 4, the two ends are sealed with the cover 35, and the bamboo-shaped sub-packaging chamber can be successfully manufactured. This method of setting the sub-packaging chamber 33 is also a bit like stacking a small round steamer for steaming steamed buns in the liquid control part 4, which can be assembled and disassembled and is easy to clean.

[0076] Of course, the liquid control member 4 can also be directly assembled with bottle cap-shaped components. The sealing cap 35 is also set in the shape of a bottle cap, and each component can also be connected by providing notches and convex points, so that each component rotates synchronously when assembled. The size of the bottle cap-shaped component matches the shell 1 so that its periphery is close to the inner surface of the shell 1. The bottle cap-shaped components are directly pushed into the shell 1 one by one, and finally the bottle cap-shaped sealing cap 35 with a rotating handle 14 is installed, and then covered with a lid 9. This solution is actually to cut the liquid control member 4 with the sub-packaging chamber 33 into sections and then assemble them back.

[0077] Second, integrated type, such as Fig.13 As shown, the filling chamber wall 27 and the liquid control member 4 are made into an integral part, and both ends are sealed with a cover 35. Each filling chamber 33 is not connected to each other, but is provided with a liquid control member hole 5.

[0078] It is also an optional solution to manufacture the sealing cover 35, the filling chamber wall 27 and the liquid control member as a whole.

[0079] In the figure, the liquid control hole 5 has been screwed to the hole 3 below the housing 1, and the liquid inlet 32 ​​on the housing 1 is sealed by the liquid control part 4. The sealing caps 35 are installed at the openings on both sides of the tubular liquid control part 4, the rotating handle 14 is combined with the sealing cap 35 on the left as a whole, the cover 9 covers the opening of the left housing 1, and the filling chamber wall 27 divides the inside of the liquid control part 4 into 4 filling chambers 33, each of which is provided with a liquid control hole 5. Of course, the number of filling chambers is not limited.

[0080] Fig.14 It is a schematic diagram of one end of the cover of Example 3. In the figure, the cover 9 covers the opening at one end of the shell 1. There is a hole on the cover 9. There are two rotation-limiting tenons 24 on the edge of the hole of the cover 9. The rotating handle 14 on the cover 35 is exposed at the hole.

[0081] When the indicator arrow 20 is against the lower side of the rotation limit tenon 24 on the left side of the cover 9, the liquid control member hole 5 faces the upper liquid filling port 32. When the indicator arrow 20 hits another rotation limit tenon 24 after rotating counterclockwise with the liquid control member 4, the liquid outlet hole may be at its maximum or closed. The cover 9 is provided with a scale 15, which marks several degrees of adjusting the liquid outlet hole from the maximum to the minimum.

[0082] When the handle 26 is arranged at the top, the liquid filling port 32 can be arranged on the edge of one side of the handle 26. Preferably, a hole can be opened at one end of the shell 1 to expose the rotating handle 14, and a limiting rotation tenon 24 and a scale 15 are arranged on the edge of the hole like the edge of the hole of the above-mentioned cover 9. After the liquid control part 4 and the sealing cover 35 are installed into the shell 1 from the other end of the shell 1, they are covered with the cover 9 without holes, and the rotating handle 14 is exposed at the hole of the above-mentioned shell 1.

[0083] Fig.15 is a schematic diagram of Example 3 when the lid hole and the rotating handle are not provided. Fig.13 The embodiment of the present invention is modified by removing the rotating handle 14, and providing two bottomless holes on the cover 35, and providing protrusions corresponding to the two bottomless holes on the cover 9. When the cover 9 covers the housing 1, the two protrusions will be inserted into the two holes. When the cover 9 rotates, the cover 35 and the liquid control member 4 will be driven to rotate simultaneously. The functions and principles of the rotation limit tenon 24 and the positioning protruding teeth 29 in the embodiment 1 are the same. The rotation limit tenon 24 is provided on the cover 9, and the scale 15 and the positioning protruding teeth 29 are provided on the housing 1 accordingly.

[0084] Fig.16 It is a schematic diagram of the embodiment of the non-circular tubular liquid control member of embodiment 3. When the liquid control member 4 rotates in the shell 1, as long as the portion of the liquid control member 4 provided with the liquid control member hole 5 can always be close to the inner surface of the shell 1 during rotation, the function of the coating liquid container of this embodiment can be realized, and the other portions only need to contact the inside of the circular shell 1 with the edges and corners. When the liquid control member hole 5 faces the liquid filling port 32, the lower hole 3 is sealed by the liquid control member 4 and liquid will not flow out. When the liquid control member hole 5 rotates to the hole 3, the liquid filling port 32 will be sealed by the liquid control member 4 again. The liquid filling port 32 can be divided into a large port for adding liquid and a small port for venting air. The large port and the small port are both facing the liquid control member hole 5 below, so that the liquid can be poured in smoothly without being blocked by the air inside the coating liquid container.

[0085] Fig.17 This is a schematic diagram of the combination of a non-circular liquid control part and a circular cover in Example 3. The liquid control part 4 is a triangular tube, one side of which is provided with a liquid control part hole 5 and is an arc surface. The covers 35 at both ends are made into circles, and the size is such that the circumference can be close to the inner wall of the shell 1 after being installed in the shell 1. The liquid control part 4 is fixedly combined between the two circular covers 35. After the combined parts are installed in the shell 1, the part of the liquid control part 4 where the liquid control part hole 5 is provided is close to the inner surface of the shell 1. When the liquid control part holes 5 are arranged in a single row, an air inlet channel 12 should be provided. The preferred solution is: an air inlet channel groove 13 is provided on the cover 35, one end of the air inlet channel groove is located at the junction of the liquid control part 4 and the cover 35, and the other end of the air inlet channel groove 13 is located on the cover 35, and a hole penetrating the cover 35 is punched as the air inlet channel outlet 22. Similarly, the air inlet channel 12 can also be arranged at the filling chamber wall 27 in the same way, except that if the filling chamber 33 is formed by a bottle cap-shaped component, a filling chamber wall 27 needs to be added in the middle of each component.

[0086] Fig.16 , Fig.17The embodiment of the liquid control member 4 shows that the shape of the liquid control member 4 is not only a round tube shape that can make the portion of the liquid control member 4 with the liquid control member hole 5 close to the inner surface of the housing 1 during rotation, but other shapes of liquid control members can also meet this requirement, and thus are also optional. From only including the liquid control member hole 5 and a small portion of the surface of the liquid control member 4 on the periphery to the entire surface of the liquid control member 4, as long as the portion within this range is close to the housing 1 when corresponding to the housing 1 during rotation, it is applicable.

[0087] Fig.18 : is a cross-sectional schematic diagram of Example 4, which is a variation of Example 3. In the figure, the circular shell 1 is equally missing a part on both sides, and the circular liquid control part 4 is equally missing a part larger than the shell 1 on both sides. When the upper liquid control part hole 5 faces the liquid filling port 32, the hole 3 below the shell 1 is sealed by the liquid control part 4. When the liquid control part 4 rotates clockwise, when the lower liquid control part hole 5 faces the hole 3, the upper liquid filling port 32 will be sealed by the liquid control part 4. The shape of the shell 1 can be used to limit the rotation range of the liquid control part 4, and the liquid control part hole 5 is respectively set at the position where the liquid filling port 32 and the liquid control part hole 5 and the hole 3 overlap the most or are closed when the liquid control part 4 is rotated to the left and right. In addition, the other settings of Example 4 are the same as those of Example 3.

[0088] The cover 9 may not be provided. Fig.10 According to the principle, an L-shaped mounting opening 17 is provided at one end of the housing 1 , and a tenon 10 is provided at a position of the liquid control member 4 corresponding to the L-shaped mounting opening 17 on the housing 1 .

[0089] Alternatively, the liquid control member 4 is still made into the cross-sectional shape shown in this figure, and the housing 1 is made into a circular cross-sectional shape inside. One end of the housing 1 is closed, and the other end of the housing 1 is provided with an opening with the same cross-sectional shape as the liquid control member 4 shown in this figure but slightly larger, so that the assembly of the liquid control member 4 and the sealing cover 35 can be installed into the housing 1 through this opening. After the rotating handle 14 exposed on the sealing cover 35 at the opening of the housing 1 is turned, the liquid control member 4 and the sealing cover 35 will be confined in the housing 1 by the opening of the housing 1. The indicating arrow 20 can be provided on the rotating handle 14, and the scale 15 can be provided at the opening of the housing 1. With such a design, the cover 9 is no longer needed.

[0090] In Examples 3 and 4, when several rows of liquid control holes 5 are provided on the liquid control member 4, correspondingly, the housing 1 should be provided with the same number of rows of holes 3. When only a single row of holes 3 is provided and each hole is located in the middle of the bottom, an air inlet channel 12 should be provided.

[0091] Each embodiment may choose to add a handle 26 to the part that is convenient for operation. The shape, number and distribution of the liquid control part hole 5 and the hole 3 described in each embodiment are not limited to the scope of the examples. In this specification and claims, whether it is the inner shell 2, the shell 1 or the liquid control part 4, all those described as circular or barrel-shaped mean that the inner or outer surfaces that need to rotate close to each other must be circular or barrel-shaped, and the inner surfaces that do not need to rotate close to each other, such as the inner surface of the tubular liquid control part 4 and the outer surface of the shell 1 are not necessarily circular or barrel-shaped. The liquid control part hole 5 corresponds to the hole 3, which also means that when the liquid control part 4 rotates, the liquid control part hole 5 will move correspondingly at the hole 3, thereby changing the degree of their overlap.

Claims

1. A coating tool capable of automatically discharging liquid, comprising a coating container for containing liquid, the bottom of the coating container having a hole (3), a liquid control member (4) having a liquid control member hole (5) corresponding to the hole (3), and a coating brush being arranged outside the coating container, wherein: The coating liquid container is composed of a shell (1), a liquid control member (4) and a sealing cover (35). The shell (1) is provided with a liquid filling port (32) and the hole (3). The liquid control member (4) is combined with the sealing cover (35) at the opening. After the liquid control member (4) and the sealing cover (35) are combined, they are installed in the shell (1). The portion of the liquid control member (4) provided with the liquid control member hole (5) is close to the shell (1) when corresponding. The liquid part (4) and the sealing cover (35) rotate in the housing (1); when the hole (5) of the liquid control part faces the liquid filling port (32), the hole (3) is closed by the liquid control part (4); when the hole (5) of the liquid control part faces the hole (3), the liquid filling port (32) is closed by the liquid control part (4); a rotating handle (14) and a rotation limiting tenon (24) are provided; when the rotating handle (14) rotates to the rotation limiting tenon (24), it is blocked by the rotation limiting tenon (24).

2. The liquid coating tool capable of automatically discharging liquid according to claim 1, characterized in that: The coating liquid container is divided into a plurality of sub-packaging chambers (33) by a sub-packaging chamber wall (27), and each sub-packaging chamber (33) has a liquid control hole (5) at the bottom.

3. The liquid coating tool capable of automatically discharging liquid according to claim 1 or claim 2, characterized in that: A rotation-limiting tenon (24) is provided on the cover (9). When the cover (9) is rotated so that the rotation-limiting tenon (24) hits a positioning protruding tooth (29) on the shell (1), it is blocked by the positioning protruding tooth (29).

Images