A vented fluid supply cup

Abstract

The application discloses a vented fluid supply cup, which has a container provided with a vent hole closed by a valve, the valve comprises a valve housing arranged at a corresponding position of the container, the valve housing is configured with a closing element, the valve housing comprises at least one hollow column protruding around the periphery of the vent hole, at least one vent hole is arranged on the hollow column, and the closing element is provided with a vent hole matched with the vent hole; the closing element can rotate along the circumference of the valve housing, the vent hole and the vent hole are in a communication state, so that the pressure between the inside of the container and the outside is balanced; the vent hole and the vent hole are in a disengaged state, and the vent hole is closed by the side wall of the closing element. The linear spatter of gas from the bottom of the container is avoided, the linear spatter is intercepted by the plugging part of the closing element, and the paint spatter effect when the vent is opened is greatly reduced.

Description

TECHNICAL FIELD

[0001] The present invention relates to fluid supply for paint spray gun, in particular to a vented fluid supply cup. BACKGROUND

[0002] The liquid supply device generally refers to a paint cup, which is used to store paint and is connected with a spray gun to spray the paint in the paint cup during use. There are mainly two kinds of paint cups on the market: one is composed of a cup body and a cup cover; the other is composed of a rigid outer cup, an inner liner, a cup cover and a threaded fixing ring.

[0003] The Chinese invention patent with the patent number 201380039900.0 and the name of exhaust assembly and reservoir comprising the exhaust assembly discloses a rotating venting mode, but it arranges a plurality of vent holes on the base, and completes the closing or opening of the vent holes through the cooperation of the vent holes on the exhaust assembly. When the exhaust assembly is rotated and opened, the holes on the exhaust assembly coincide with the vent holes, which can cause the paint in the fluid supply cup to splash out of the coinciding holes. Although the balance of the internal and external air pressure of the fluid supply cup is achieved, the splashed paint can pollute the environment during the opening process.

[0004] The Chinese invention patent with the patent number 202111041366.X and the name of a fluid supply cup for a paint spray gun discloses a lifting type venting mode, and the blocking part thereof can also cause the paint in the fluid supply cup to splash out of the coinciding holes at the moment of opening.

[0005] Therefore, the prior art needs to be further improved and developed. SUMMARY

[0006] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a vented fluid supply cup, which can reduce the splashing of paint while ensuring the ventilation of the fluid supply cup.

[0007] To solve the above technical problems, the present invention provides the following solutions:

[0008] A vented fluid supply cup has a container, which is provided with a vent hole closed by a valve. The valve includes a valve housing arranged at the corresponding position of the container, and the valve housing is configured with a closing element. The valve housing includes at least one hollow column protruding around the periphery of the vent hole, and the hollow column is arranged with at least one vent hole. The closing element is provided with a vent hole adapted to the vent hole. The closing element can rotate along the circumference of the valve housing. The vent hole and the vent hole are in a communication state, so that the pressure between the inside of the container and the outside is balanced. The vent hole and the vent hole are in a disengaged state, and the vent hole is closed by the side wall of the closing element. The closing element is arranged on the valve housing by a limiting mechanism or a clamping mechanism.

[0009] The vented fluid supply cup, wherein the vent is arranged on the side wall of the hollow column; or a plurality of vents are arranged on the side wall of the hollow column to form a venting area.

[0010] The vented fluid supply cup, wherein the two vents are symmetrically arranged on the side wall of the hollow column.

[0011] The vented fluid supply cup, wherein the vent is a U-shaped port.

[0012] The vented fluid supply cup, wherein the valve housing further comprises a valve seat surrounding the outer periphery of the hollow column, the side wall of the valve seat is provided with a venting structure; and the closure element is combined with the valve seat through a limiting mechanism or a clamping mechanism.

[0013] The vented fluid supply cup, wherein the venting structure is a through hole, a notch or a slit, or a strip-shaped passage arranged along the height direction of the side wall of the valve seat, the recessed surface of the strip-shaped passage being lower than the surface of the side wall of the valve seat.

[0014] The vented fluid supply cup, wherein the closure element comprises a hollow cylindrical base body provided with a hollow cylindrical member, the hollow cylindrical member being adapted to the hollow column, and the vent is arranged on the side wall of the hollow cylindrical member.

[0015] The vented fluid supply cup, wherein the hollow cylindrical member is inserted into the hollow column, and the vent is closed by the outer surface of the side wall of the hollow cylindrical member.

[0016] The vented fluid supply cup, wherein the hollow cylindrical member is sleeved on the hollow column, and the vent is closed by the inner surface of the side wall of the hollow cylindrical member.

[0017] The vented fluid supply cup, wherein the cylindrical base body is inserted into the valve seat, or the cylindrical base body is sleeved on the valve seat.

[0018] The vented fluid supply cup, wherein the limiting mechanism or the clamping mechanism comprises an annular groove arranged on the side wall of the valve seat, and an annular ring arranged on the closure element; or an annular ring arranged on the side wall of the valve seat, and an annular groove arranged on the closure element.

[0019] The annular groove and the annular ring are adapted to each other so that the closure element can rotate along the circumference of the valve housing.

[0020] The vented fluid supply cup is characterized in that the side wall of the valve seat is provided with a first limiting structure, the closing element is provided with a second limiting structure, the first limiting structure cooperates with the second limiting structure to control the communication state or the disengagement state of the venting hole and the venting position.

[0021] The vented fluid supply cup is characterized in that the first limiting structure is two stoppers which are symmetrically arranged on the side wall of the valve seat, and the second limiting structure is two stop flaps or stoppers which are arranged on the cylindrical base body or the hollow cylindrical member of the closing element.

[0022] The vented fluid supply cup provided by the application adopts the mode of arranging a venting hole on the side wall of a hollow column, opens the venting hole by rotating the closing element, balances the pressure between the inside of the fluid supply cup and the outside, and in the opening process, the gas is not directly sprayed upward along the venting hole, but is vented through the venting hole of the side wall, so that the linear spraying of the gas from the bottom of the container is avoided, the linear spraying part is intercepted by the blocking part of the closing element, and the paint spraying effect during the opening and venting is greatly reduced. Of course, in order to further reduce the paint spraying phenomenon, a cylindrical valve seat can also be arranged on the periphery of the hollow column, and the paint sprayed from the side is closed between the hollow column and the valve seat, so that the paint spraying phenomenon during the venting is completely eliminated. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a structural schematic view of the fluid supply cup of the application;

[0024] Figure 2 It is a schematic view of one embodiment of the valve shell in the application;

[0025] Figure 3 It is a schematic view of another embodiment of the valve shell in the application;

[0026] Figure 4 It is a schematic view of a third embodiment of the valve shell in the application;

[0027] Figure 5 It is a schematic view of a fourth embodiment of the valve shell in the application;

[0028] Figure 6 It is a schematic view of the combination of the closing element and the valve shell in the application;

[0029] Figure 7 It is a schematic view of one embodiment of the closing element in the application;

[0030] Figure 8 It is a schematic view of another embodiment of the closing element in the application;

[0031] Figure 9Schematic diagram of the hollow cylindrical member inserted into the hollow column and the cylindrical base inserted into the valve seat in a connected state;

[0032] Figure 10 Schematic diagram of the hollow cylindrical member inserted into the hollow column and the cylindrical base inserted into the valve seat in a disconnected state;

[0033] Figure 11 Schematic diagram of the hollow cylindrical member inserted into the hollow column and the cylindrical base inserted into the valve seat in a connected state;

[0034] Figure 12 Schematic diagram of the hollow cylindrical member inserted into the hollow column and the cylindrical base inserted into the valve seat in a disconnected state. DETAILED DESCRIPTION

[0035] The present application provides a vented fluid supply cup, in order to make the purpose, technical scheme and effect of the present application more clear and explicit, the present application is further described in detail below. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application.

[0036] The present application provides a vented fluid supply cup, as shown in Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , the vented fluid supply cup has a container 1, which includes a barrel-shaped container and a lid that can be screwed onto the container by threads 17. Of course, there are many ways to connect the lid to the container 1. The lid has an outlet fitting with an outlet on its top side, and a connector is formed on the outside of the outlet fitting. The connector is used to attach and secure the fluid reservoir to a paint spray gun or an adapter provided between the paint spray gun and the fluid reservoir. There are many forms of specific construction of the lid and the container, which will not be described one by one here.

[0037] The above-mentioned container 1 is provided with a vent hole 2 closed by a valve, which is generally arranged at the bottom of the container. The valve includes a valve housing 18 provided at the corresponding position of the container 1, as shown in Figure 7 and Figure 8 , the valve housing is provided with a closing element 3, and the valve housing 18 includes at least one hollow column 4 protruding around the periphery of the vent hole 2. The valve housing has many forms, as shown in Figure 2 、 Figure 3 、 Figure 4 and Figure 5 , the hollow column 4 can be open at the upper end or closed at the upper end, and the closing element 3 can be inserted into the hollow column 4 or fitted on the hollow column 4. The hollow column 4 is arranged with at least one vent 5, which is generally arranged on the side wall of the air column 4, as shown inFigure 7 and Figure 8 As shown, the sealing element 3 is provided with a vent 6 adapted to the vent 5. The vent 6 has the same structure as the vent 5, and can also be a venting area composed of multiple through holes. A mesh screen can also be arranged on the vent 6, which will not be elaborated further here. The sealing element 3 can rotate circumferentially along the valve body. When the vent 5 and the vent 6 are in a connected state, the pressure between the inside and outside of the container 1 is balanced, meaning that when opened, the amount of paint splashing will be greatly reduced. When the vent 5 and the vent 6 are in a disconnected state, specifically, the vent 5 and the vent 6 are completely misaligned, with no intersection between the two venting areas. The vent 5 is sealed by the side wall of the sealing element 3, generally using an interference fit. Alternatively, a protrusion can be provided at the corresponding position on the side wall of the sealing element 3 to seal the vent 5. Furthermore, the sealing element 3 is arranged on the valve body 18 by a limiting mechanism or a locking mechanism, the specific method of which is as follows: Figures 9-12 As shown, in order to achieve the above functions, its specific structure can be appropriately modified and combined.

[0038] Furthermore, such as Figure 2 and Figure 3 As shown, the vent 5 is arranged on the side wall of the hollow column 4; of course, several vents 5 can be arranged on the side wall of the hollow column to form a ventilation area, which is not shown in the figure. Specifically, the aperture of the vent 5 can be controlled to further control the amount of paint splashing.

[0039] In a preferred embodiment of the present invention, two vents 5 are provided, and the two vents 5 are arranged symmetrically on the side wall of the hollow column 4, generally with the axis of the hollow column as the line of symmetry, so that the two vents 5 can be opened simultaneously, improving ventilation. Furthermore, the hollow column 4 is open at the top, and the vents 5 are U-shaped. Similarly, the vents 6 on the sealing element 3 can be set as the same U-shaped opening, such as... Figure 6 As shown, when the two are in a connected state, they form a through hole 19.

[0040] In another preferred embodiment of the invention, such as Figure 4 and Figure 5 As shown, the valve housing 18 also includes a valve seat 7, which surrounds the hollow column 4. For example, the valve seat 7 and the hollow column 4 can be arranged as concentric cylinders, with the diameter of the valve seat 7 being larger than the diameter of the hollow column 4. Alternatively, the valve seat 7, the hollow column 4, and the vent 2 can all be concentric. Figure 5 , Figure 9 and Figure 10As shown, that is, the inner wall of the valve seat 7 and the outer wall of the hollow column 4 form a containing space 8. And the side wall of the valve seat 7 is provided with a gas permeable structure, when the two air vents 5 and the corresponding air vents 6 are communicated, the paint splashed from the air vents 5 will be closed in the containing space 8 under the blocking of the valve seat 7, thereby avoiding the problem of paint splashing during the opening of the valve; the above-mentioned closing element 3 is combined with the valve seat 7 through a limiting mechanism or a clamping mechanism, so that the circumferential rotation of the closing element 3 is more smooth.

[0041] Further, as shown in the figure, Figure 5 The gas permeable structure is a through hole, a notch or a gap, and in this embodiment, the notch 9 is used, which aims to reduce the contact space between the containing space 8 and the outside world and ensure the smooth operation of the airflow. The containing space 8 and the outside world can always be in communication through the assembly gap between the closing element 3 and the valve housing.

[0042] Of course, a strip-shaped passage can also be provided along the height direction of the side wall of the valve seat 7, which is located on the outer surface of the valve seat 7, and the recessed surface of the strip-shaped passage is lower than the surface of the side wall of the valve seat 7, that is, the inner wall of the strip-shaped passage corresponding to the closing element 3 forms an airflow passage, which ensures the communication between the outside world and the containing space 8.

[0043] In the best embodiment of the present application, as shown in the figure, Figure 8 The closing element 3 includes a hollow cylindrical base body 10, and a hollow cylindrical part 11 is arranged on the cylindrical base body 10, which is matched with the hollow column 4, and the air vents 6 are arranged on the side wall of the hollow cylindrical part 11. More specifically, as shown in the figure, Figure 9 And Figure 10 The hollow cylindrical part 11 is inserted into the hollow column 4, the air vents 5 are closed by the outer surface of the side wall of the hollow cylindrical part 11, and the air vents 6 are symmetrically arranged on the hollow cylindrical part 11 in the form of two U-shaped openings. Generally, the outer surface of the side wall of the hollow cylindrical part 11 has a taper, and the inner surface of the hollow column 4 also has a taper, and the stability of closing or opening the air vents 5 is ensured by the cooperation of the tapers between the two surfaces. Of course, the taper can be determined according to the assembly mode of the hollow cylindrical part 11 and the hollow column 4.

[0044] When the closing element 3 is rotated to make the air vents 5 coincide with the air vents 6, the balance between the fluid supply cup and the outside air pressure is achieved, and in the process of gradually opening the air vents 5 and the air vents 6, it is a process from a gap to a through hole, which maximizes the degree of reducing paint splashing.

[0045] As shown in the figure, Figure 11 And Figure 12As shown, the hollow cylindrical component 11 can also be placed on the hollow column 4, and the vent 5 can be sealed by the inner surface of the side wall of the hollow cylindrical component 11. Its operating principle and process are the same as those described above, and will not be repeated here.

[0046] Furthermore, such as Figure 9 and Figure 10 As shown, the cylindrical base 10 is inserted into the valve seat 7, and the air passage can be realized through the assembly gap between the cylindrical base 10 and the valve seat 7. Alternatively, multiple strip-shaped passages 18 can be provided on the outer surface of the side wall of the cylindrical base 10, and the lower edge of the side wall of the cylindrical base 10 does not contact the bottom of the container 1, so that the outer surface of the side wall of the cylindrical base 10 and the inner surface of the valve seat 7 cooperate with each other to form a connection between the outside world and the containing space 8.

[0047] Of course, the cylindrical base 10 can be placed on the valve seat 7, and the strip-shaped passage 11 is set on the inner surface of the side wall of the cylindrical base 10, so that the inner surface of the side wall of the cylindrical base 10 and the outer surface of the valve seat 7 cooperate with each other, and the lower edge of the side wall of the cylindrical base 10 does not contact the bottom of the container 1, thereby forming a connection between the outside world and the containing space 8.

[0048] In another preferred embodiment of the invention, such as Figure 5 , Figure 6 , Figure 9 and Figure 10 As shown, the aforementioned limiting or locking mechanism includes an annular groove 12 disposed on the side wall of the valve seat 7 and an annular clamp 13 disposed on the sealing element 3. Specifically, the annular groove 12 is arranged on the inner surface of the side wall of the valve seat 7, and the annular clamp 13 is disposed on the outer surface of the cylindrical base 10. The annular groove 12 and the annular clamp 13 are adapted to each other. After installation, the sealing element 3 can only rotate circumferentially along the valve body and cannot move up and down on the valve seat 7. The arrangement positions of the annular groove 12 and the annular clamp 13 can be interchanged. For example, the annular clamp 13 can be disposed on the side wall of the valve seat 7, while the annular groove 12 can be disposed on the sealing element 3. Its main purpose is to adapt the annular groove 12 and the annular clamp 13 so that the sealing element 3 can rotate circumferentially along the valve body.

[0049] Of course, an annular clamp 13 can be installed only on the side wall of the valve seat 7, forming an interference fit between the annular clamp 13 and the side wall of the cylindrical base 10 to achieve the purpose of limiting or locking. Alternatively, the annular clamp 13 can be arranged on the side wall of the cylindrical base 10, forming an interference fit between the annular clamp 13 and the side wall of the valve seat 7 to achieve the purpose of limiting or locking. Other forms of limiting or locking mechanisms can also be used, which will not be listed here.

[0050] In another preferred embodiment of the invention, such as Figure 5 , Figure 9 ,Figure 10 , Figure 11 and Figure 12 As shown, a first limiting structure is arranged on the side wall of the valve seat 7, and a second limiting structure is arranged on the sealing element 3. The first and second limiting structures cooperate to control the connection or disconnection state between the vent and the vent. Specifically, the first limiting structure consists of two blocks 14, which are symmetrically arranged on the side wall of the valve seat 7. In this embodiment, the two blocks 14 are positioned opposite to the notch 9. Of course, to control the rotation angle of the sealing element 3 or to form a mark for user convenience, the arrangement of the blocks 14 can be adjusted to meet user needs. The second limiting structure consists of two baffles or blocks. In this embodiment, baffles 15 are used, and the two baffles or blocks are arranged on the cylindrical base or hollow cylindrical part of the sealing element 3. The specific arrangement of the baffle 15 depends on the matching method between the cylindrical base 10 and the valve seat 7. In this embodiment, the baffle 15 is an arc-shaped baffle. For example, if the cylindrical base 10 is inserted into the valve seat 7, then the stop block 14 is arranged on the outer surface of the side wall of the valve seat 7, and the baffle 15 is arranged on the side edge of the top of the cylindrical base 10, extending along the arc of the outer surface of the side wall of the valve seat 7, so that it also serves as a guide rail, making the rotation of the sealing element 3 smoother. When the corresponding end of the baffle 15 engages with the corresponding surface of the corresponding stop block 14, the vent 5 and the vent 6 coincide. When the other corresponding end of the baffle 15 engages with the corresponding surface of another corresponding stop block 14, the vent 5 is completely disengaged from the vent 6, and the vent 5 is closed by the side wall of the hollow cylindrical member 11, thereby realizing the closing and opening of the vent 5. Furthermore, the cooperation between the baffle 15 and the stop block 14 can limit the rotation of the sealing element 3 between 0° and 90°, thereby opening or closing the vent 5. Figure 7 , Figure 8 , Figure 9 and Figure 10 As shown, a rotating handle 16 is arranged on the sealing element 3 for easy operation by the user. The user can also determine whether the vent 5 is open or closed based on the position of the rotating handle 16. Of course, the open or closed state of the vent 5 can be clearly marked on the bottom of the container 1.

[0051] And also can be provided with interference function between the two flaps 15, such as the protrusions provided on the cylindrical base 10, can be provided with a protrusion near the corresponding end of the flap 15, a total of four protrusions provided on the closure element 3, the protrusions and the corresponding end of the flap 15 exist between the card, the card is adapted to the width of the above-mentioned stop block 14, such as in the vent 5 is in the closed state, through the protrusion on the stop block 14 positioning, prevent the closure element 3 from being randomly rotated, resulting in paint from the container 1 bottom leakage, similarly, the vent 5 is in the open state, also ensures that the closure element 3 will not be randomly closed. Of course, the protrusions can also be provided on the side wall of the valve seat 7, the specific setting position, can be determined according to the assembly mode of the valve seat 7 and the closure element 3. Of course, it can also be according to the specific needs of other settings, not here.

[0052] Of course, the above description is not a limitation of the present application, the present application is not limited to the above examples, the changes, modifications, additions or substitutions made by the person skilled in the art within the scope of the present application, also should belong to the protection scope of the present application.

Claims

1. A vented fluid supply cup having a container provided with a venting hole closed by means of a valve comprising a valve housing provided at the corresponding place of the container, the valve housing being configured with a closure element, characterized in that, The valve housing comprises at least one hollow column protruding around the periphery of the vent hole, and at least one vent hole is arranged on the hollow column. The closure element is provided with a venting position matched with the vent hole. The closure element can rotate along the circumference of the valve housing. When the vent hole and the venting position are in a connected state, the pressure between the inside of the container and the outside is balanced. When the vent hole and the venting position are in a disconnected state, the vent hole is closed by the side wall of the closure element. The closure element is arranged on the valve housing by a limiting mechanism or a clamping mechanism. The valve housing further comprises a valve seat, and the inner wall of the valve seat and the outer wall of the hollow column form an accommodation space. The valve seat is provided with a gas permeable structure on the side wall. When the vent hole and the corresponding venting position are connected, the paint sprayed therefrom is blocked in the accommodation space by the barrier of the valve seat. The gas permeable structure keeps the accommodation space in communication with the outside at all times. The vent hole is arranged on the side wall of the hollow column. Alternatively, a plurality of vent holes are arranged on the side wall of the hollow column to form a venting area.

2. The vented fluid supply cup of claim 1, wherein, The two vent holes are arranged symmetrically on the side wall of the hollow column.

3. The vented fluid supply cup of claim 1, wherein, The vent hole is a U-shaped hole.

4. The vented fluid supply cup of claim 1, wherein, The valve seat surrounds the periphery of the hollow column. The closure element is combined with the valve seat by the limiting mechanism or the clamping mechanism.

5. The vented fluid supply cup of claim 4, wherein, The gas permeable structure is a through hole or a notch.

6. The vented fluid supply cup of claim 4, wherein, The closure element comprises a hollow cylindrical base body provided with a hollow cylindrical member matched with the hollow column. The venting position is arranged on the side wall of the hollow cylindrical member.

7. The vented fluid supply cup of claim 6, wherein, The hollow cylindrical member is inserted into the hollow column to close the vent hole by the outer surface of the side wall of the hollow cylindrical member.

8. The vented fluid supply cup of claim 6, wherein, The hollow cylindrical member is sleeved on the hollow column to close the vent hole by the inner surface of the side wall of the hollow cylindrical member.

9. The vented fluid supply cup of claim 6, wherein, The cylindrical base body is inserted into the valve seat, or the cylindrical base body is sleeved on the valve seat.

10. The vented fluid supply cup of claim 4, wherein, The limiting mechanism or the clamping mechanism comprises an annular groove arranged on the side wall of the valve seat and an annular ring arranged on the closure element, or an annular ring arranged on the side wall of the valve seat and an annular groove arranged on the closure element. The annular groove and the annular ring are matched to enable the closure element to rotate along the circumference of the valve housing.

11. The vented fluid supply cup of claim 6, wherein, The side wall of the valve seat is provided with a first limiting structure, and the closure element is provided with a second limiting structure. The first limiting structure and the second limiting structure cooperate to control the connected state or the disconnected state of the vent hole and the venting position.

12. The vented fluid supply cup of claim 11, wherein, The first limiting structure is two stop blocks arranged symmetrically on the side wall of the valve seat. The second limiting structure is two stop pieces arranged on the cylindrical base body or the hollow cylindrical member of the closure element.

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