Storage

Abstract

The present invention relates to a reservoir, including a cup cover and a hard storage cup, wherein a liquid channel is formed on the cup cover, and the cup cover is detachably connected to the hard storage cup, and is characterized in that: the cup cover and / or the hard storage cup are provided with a ventilation mechanism that allows gas to pass into the reservoir in a positive direction and does not allow liquid in the reservoir to pass out of the reservoir in a reverse direction. The present invention has a variety of usage modes, and the usage modes can be switched arbitrarily according to the situation, saving materials and paint. The cover of the present invention can be connected to a soft storage cup and a hard storage cup at the same time, and the soft storage cup and / or the hard storage cup can be selected to be installed according to the above usage modes. It is convenient and flexible to use and can adapt to a variety of different needs during use.

Description

Technical Field

[0001] The present invention relates to a reservoir. Background Art

[0002] There are two main types of paint containers (spray cups) currently on the market.

[0003] The first method: the spray cup includes a soft storage cup 3. Advantages: the soft storage cup 3 is soft and can shrink, the spray cup can be rotated at any angle and can spray paint. Because the soft storage cup 3 is thin and low in cost, it can reduce the waste of plastic resources. Disadvantages: However, because the air inside is exhausted first during use, only paint is left, and the soft storage cup 3 shrinks slowly, the reaction force causes the loss of the suction of the spray gun, resulting in uneven paint. At the same time, after the soft storage cup 3 shrinks, there is a lot of residual paint, resulting in a waste of paint.

[0004] The second method: the spray cup does not include the soft storage cup 3. Advantages: It is not a shrinkable type. Through the air inlet, the atmospheric pressure will automatically balance the pressure inside and outside the cup to achieve consistency. The paint is evenly discharged and there is less residual paint. Disadvantages: It is impossible to spray paint at any angle of 360 degrees. Compared with the soft storage cup 3, the outer cup needs to be thrown away, and the thickness of the outer cover is more than the soft storage cup 3, resulting in a waste of resources, high cost, and more environmental pollution.

[0005] Both of the above two existing paint reservoirs (spray cups) have inherent disadvantages.

[0006] Meanwhile, the prior art cover needs to use a retaining ring 7 (such as Fig.13 as shown) for connection and fixing.

[0007] At the same time, when the spray gun liquid reservoir currently on the market is connected to the spray gun to spray paint outward, the liquid inside the storage cup continues to decrease, which will cause the air pressure difference between the inside and outside of the spray gun liquid reservoir to continue to increase, thereby causing the storage cup to rupture due to force, causing the paint in the storage cup to flow out.

[0008] The existing method for balancing the pressure difference between the inside and outside of the spray gun liquid reservoir is to set a vent hole at the bottom or wall of the storage cup, and the vent hole is detachably connected to the lid. When the storage cup is inverted for spraying, the lid is opened to allow the vent hole to ventilate and continuously balance the pressure difference.

[0009] However, the above method has the following problems:

[0010] 1. It takes a lot of force and a large range of motion to snap the lid off, wasting the staff's energy and time;

[0011] 2. When storing paint that has not been used up, the vent and lid are located below the paint. Over time, the paint will dry in the gap between the vent and lid, making it difficult to open the lid. Summary of the invention

[0012] The present invention aims to solve the above-mentioned problems and provides a storage device, which solves the problems of uneven paint discharge and large amount of residual paint in a spray cup including a soft storage cup, solves the problem that the spray cup including a soft storage cup cannot spray paint at any angle and the outer cup is thrown away, which wastes resources, and solves the problem that a connector is required when installing a hard storage cup in the existing cover; solves the problem that a large force and a large range of motion are required to buckle the lid, wasting the physical strength and time of the staff; and solves the problem that as time goes by, the paint will dry up in the gap between the air vent and the lid, making it difficult to open the lid.

[0013] A reservoir, comprising a cup cover and a hard storage cup, wherein a liquid channel is formed on the cup cover, and the cup cover and the hard storage cup are detachably connected, characterized in that: the cup cover and / or the hard storage cup are provided with a ventilation mechanism that allows gas to pass forward into the reservoir and does not allow liquid in the reservoir to pass backward and leave the reservoir.

[0014] Further, the ventilation mechanism includes an intake valve, the intake valve includes a sealing member, and the sealing member opens or closes the intake valve by changing its position and / or shape;

[0015] Preferably, the sealing member is made of elastic material;

[0016] More preferably, the elastic material is TPU, TPE, TPR, TPV, CPE, plastic and rubber.

[0017] Furthermore, the air intake valve further comprises a vent plate; the vent plate is formed with a vent, and the sealing member moves relative to the vent plate to cover or open the vent;

[0018] Preferably, the cup cover or the hard storage cup is integrally formed with the ventilation plate.

[0019] Further, the sealing member includes a limiting portion, a fixed connection portion and a sealing portion; the ventilation plate is formed with a connection hole, the fixed connection portion passes through the connection hole, and the limiting portion and the sealing portion are respectively located on both sides of the ventilation plate; the sealing portion moves relative to the ventilation plate to cover or open the ventilation port;

[0020] Preferably, the limiting portion, the fixed connection portion and the sealing portion are integrally formed.

[0021] Furthermore, the ventilation mechanism further comprises a barrier, and the barrier is used to control the on and off of the gas entering the reservoir through the ventilation mechanism in the forward direction;

[0022] Preferably, the on / off of the gas entering the reservoir through the ventilation mechanism is controlled by changing the relative position of the barrier and the ventilation plate;

[0023] Furthermore, the air inlet valve further comprises a housing, and the vent plate and the seal are partially or completely located inside the housing; the on / off of the gas entering the reservoir through the vent mechanism is controlled by changing the relative position of the barrier and the housing;

[0024] Preferably, the barrier is of a plug type or a cover type;

[0025] Preferably, the barrier is connected to the cup cover or the hard storage cup via a connecting piece;

[0026] More preferably, the barrier, the connector and the cup cover are integrally formed;

[0027] More preferably, the barrier, the connector and the hard storage cup are integrally formed;

[0028] Preferably, the cup cover, the shell and the ventilation plate are integrally formed;

[0029] Preferably, the hard storage cup, the shell and the ventilation plate are integrally formed.

[0030] Furthermore, the barrier element rotates relative to the housing to control the on and off of the gas entering the reservoir through the vent mechanism in the forward direction;

[0031] Preferably, the air intake valve further comprises an outer shell, the shell is inside the outer shell, and the blocking member is rotatably connected to the outer shell;

[0032] More preferably, the barrier is formed with an inner sealing portion, an outer sealing portion and an outer fixing portion from the inside to the outside, the inner sealing portion is interference fit or transition fit with the inner wall of the shell opening, the outer sealing portion is interference fit or transition fit with the outer wall of the shell opening, and the outer fixing portion is interference fit or transition fit with the inner wall of the shell;

[0033] Preferably, the rotation axis of the barrier is perpendicular to the moving direction of the sealing member;

[0034] More preferably, the interference of the inner sealing part is greater than that of the outer sealing part, and the height of the inner sealing part is less than that of the outer sealing part;

[0035] Preferably, the shell, the vent plate and the outer shell are integrally formed and made of elastic material, and the elastic material is PE, PP, PC, PVC, PPR, ABS plastic, PS plastic, PMMA plastic, POM plastic, PA plastic, PPO plastic, PSU plastic, PTFE plastic, ASA plastic, PPS plastic, ETFE plastic, epoxy resin, silicone plastic and rubber.

[0036] Furthermore, the sealing member is formed with a plurality of openings whose sizes can be changed by elastic deformation, and the sealing member opens or closes the ventilation mechanism by opening and closing the openings.

[0037] Preferably, the sealing member comprises a sealing portion, the opening is formed on the sealing portion, the sealing portion is a hollow cone, and the sealing portion is a rotating body;

[0038] More preferably, the generatrix of the sealing portion is a curve that bends toward the central axis of the sealing portion;

[0039] Preferably, the openings are arranged circumferentially along the central axis of the sealing portion;

[0040] More preferably, the openings are evenly arranged along the central axis of the sealing portion.

[0041] Preferably, the sealing member further comprises a limiting portion, and the sealing portion is integrally formed with the sealing member;

[0042] More preferably, the air intake valve further comprises a housing, the housing is fixedly connected to the cup cover or the hard storage cup, and the sealing member and the fixing portion are inside the housing and fixed to the housing.

[0043] Furthermore, the outer circumference of the cup cover extends outwardly and laterally to form a first horizontal ring; the outer edge of the first horizontal ring extends upwardly and vertically to form a first vertical ring; the upper edge of the first vertical ring extends outwardly and laterally to form a second horizontal ring; the outer edge of the second horizontal ring extends downwardly and vertically to form a second vertical ring for locking the hard storage cup;

[0044] Preferably, the outer edge of the first horizontal ring vertically extends upward and downward at the same time, together forming a first vertical ring; a flange surrounding the first vertical ring is formed on one side of the first vertical ring close to the second vertical ring;

[0045] Preferably, the cup cover is integrally formed by injection molding with the first horizontal ring, the second horizontal ring, the first vertical ring and the second vertical ring.

[0046] Furthermore, the ventilation mechanism is arranged below the bottom of the hard storage cup, and when the barrier is closed, the bottom surface of the barrier is lower than or equal to the lowest point of the hard storage cup, and when the barrier is opened, the bottom surface of the barrier is partially or completely lower than the lowest point of the hard storage cup;

[0047] Preferably, a support portion is formed below the bottom of the hard storage cup, and when the barrier is closed, the bottom surface of the barrier and the bottom surface of the support portion are located at the same level.

[0048] Furthermore, it also includes a soft storage cup, which is fixedly connected to the flange of the first vertical ring;

[0049] Preferably, a supporting edge is formed on the periphery of the upper port of the soft storage cup, and a pressure ring is formed on the upper port of the hard storage cup, and the supporting edge is arranged between the second horizontal ring and the pressure ring of the hard storage cup, and the second horizontal ring and the pressure ring press and fix the supporting edge of the soft storage cup;

[0050] Preferably, the cup body of the hard storage cup is open or closed.

[0051] Furthermore, the cup cover is formed with a plane, a side surface of the ventilation plate and a side surface of the plane are located in the same plane, and the sealing portion is in contact with the ventilation plate and the plane at the same time to cover the vent.

[0052] The present invention has the following advantages:

[0053] 1. It has multiple usage modes, and you can switch the usage mode at will according to the situation, saving materials and paint.

[0054] You can use soft storage cups and / or hard storage cups to store paint, which can preserve the paint for a long time.

[0055] Use a soft storage cup to spray paint at any angle. This method allows you to spray paint at any angle. You only need to discard the soft storage cup, saving materials, but more paint is wasted.

[0056] Use a soft storage cup to spray paint downwards. In this way, the soft storage cup will not shrink, no paint will be wasted, and you only need to discard the soft storage cup to save materials.

[0057] Use a hard storage cup to spray paint downwards. This method does not use a soft storage cup, does not waste paint, and does not require the hard storage cup to be discarded or cleaned for reuse.

[0058] 2. The cover can be connected to both the soft storage cup and the hard storage cup at the same time, and the soft storage cup and / or the hard storage cup can be installed according to the above usage. It is convenient and flexible to use and can meet various different needs in use.

[0059] 3. When closing the barrier, you only need to place the cup on a flat surface to close it automatically. The cup can be brought into contact with the flat surface to give the cup a speed. When the cup contacts the flat surface, the kinetic energy of the cup can be used to rotate the barrier. There is no need to manually press the barrier to snap it onto the intake valve. This method requires less force and can save the staff's physical strength and time.

[0060] 4. If the paint in the storage cup is not used up during painting, just put the cup upright, the seal will return to the vent plate by gravity and be pressed to the vent of the vent plate by the pressure of the liquid to prevent liquid leakage. The operation is simple and quick.

[0061] 5. The inner seal completely seals the paint in the housing, preventing the paint from leaving the housing and entering the connection between the air inlet valve and the barrier, causing difficulty in opening and closing. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only one embodiment of the present invention, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0063] Figure 1 : A schematic diagram of one of the ventilation mechanisms of the present invention;

[0064] Figure 2 : A schematic diagram of the second ventilation mechanism of the present invention;

[0065] Figure 3 : A schematic diagram of the third ventilation mechanism of the present invention;

[0066] Figure 4 : A schematic diagram of the fourth ventilation mechanism of the present invention;

[0067] Figure 5 : A schematic diagram of the three-dimensional structure of one of the reservoirs of the third embodiment of the present invention (top view);

[0068] Figure 6 : A schematic diagram of the three-dimensional structure of one of the storage devices according to the third embodiment of the present invention (looking from above);

[0069] Figure 7 : A schematic diagram of a top view of one of the storage devices according to the third embodiment of the present invention;

[0070] Figure 8 : A schematic cross-sectional view of the present invention taken along the C section;

[0071] Fig. 9 : A schematic diagram of the local enlarged structure of the present invention at D;

[0072] Fig.10 : Schematic diagram of the explosion structure of the second storage device according to the third embodiment of the present invention;

[0073] Fig.11 : A schematic diagram of the three-dimensional structure of the second storage device according to the third embodiment of the present invention;

[0074] Fig.12 : A schematic diagram of the top view of the second storage device according to the third embodiment of the present invention;

[0075] Fig.13: A bottom view of the structure of the second storage device according to the third embodiment of the present invention;

[0076] Fig.14 : A schematic cross-sectional view of the present invention taken along point A;

[0077] Fig.15 : A schematic cross-sectional structural diagram of a second reservoir of the third embodiment of the present invention (with a barrier member but without a vent cover);

[0078] Fig.16 : A schematic cross-sectional view of the second reservoir of the third embodiment of the present invention (without a barrier and with a vent cover);

[0079] Fig.17 : A schematic cross-sectional view of the second storage device of the third embodiment of the present invention (without the soft storage cup);

[0080] Fig.18 : A schematic diagram of the partial enlarged structure of the present invention at position B;

[0081] Fig.19 : Schematic diagram of the connection structure between the cover and the hard storage cup;

[0082] Fig. 20 : A three-dimensional schematic diagram of the fifth ventilation mechanism of the present invention;

[0083] Fig.21 : A cross-sectional schematic diagram of the fifth ventilation mechanism of the present invention (fixing method four);

[0084] Fig. 22 : A cross-sectional schematic diagram of the fifth ventilation mechanism of the present invention (fixing method three);

[0085] Fig.23 : A three-dimensional schematic diagram of the sixth ventilation mechanism of the present invention;

[0086] Fig.24 : A schematic cross-sectional front view of the sixth ventilation mechanism of the present invention (open state);

[0087] Fig.25 : A schematic cross-sectional front view of the sixth ventilation mechanism of the present invention (closed state);

[0088] Fig.26 : A schematic cross-sectional side view of the sixth ventilation mechanism of the present invention;

[0089] Fig. 27 : A second schematic cross-sectional side view of the sixth ventilation mechanism of the present invention;

[0090] Fig.28 : A schematic diagram of the three-dimensional structure of one of the reservoirs of the fifth embodiment of the present invention;

[0091] Fig.29: A schematic cross-sectional view of one of the reservoirs of the fifth embodiment of the present invention;

[0092] Fig.30 : Schematic diagram of the cross-sectional structure of the second storage device of the fifth embodiment of the present invention. DETAILED DESCRIPTION

[0093] The present invention will be further described below in conjunction with the accompanying drawings and examples:

[0094] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0095] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0096] Embodiment 1:

[0097] Implementation 1: Figure 1 As shown, this embodiment provides a ventilation mechanism, including: an air intake valve 4, wherein the air intake valve 4 allows gas to pass through the reservoir in a forward direction and does not allow liquid in the reservoir to pass through the air intake valve 4 in a reverse direction.

[0098] Preferably, the air inlet valve 4 comprises a vent plate 42 and a sealing member 43; the vent plate 42 is formed with a vent port 422, and the sealing member 43 moves relative to the vent plate 42 to cover or open the vent port 422;

[0099] This implementation does not include Figure 1 The middle shell 41 and the barrier 5 and other components.

[0100] When the seal 43 blocks the vent 422, the vent 422 is closed by the seal 43, and the gas cannot pass through the intake valve 4 in the forward direction. At this time, the intake valve 4 can have gas on the lower side and liquid on the upper side, and the liquid above the seal 43 exerts a downward force on the seal 43 due to its own gravity, so that the seal 43 is in close contact with the vent plate 42 to seal the vent 422.

[0101] When the seal 43 does not block the vent 422, the air pressure in the space above the seal 43 is low, and the air pressure in the space below the seal 43 is high. The gas below pushes the seal 43 upward at the vent 422, and the seal 43 is removed from the state of blocking the vent 422. The gas passes through the vent 422 and the gap between the vent 422 and the seal 43 in turn and enters the liquid above the seal 43.

[0102] Implementation 2: Figure 1 As shown, this embodiment is a further embodiment based on embodiment 1, and this embodiment does not include Figure 1 The middle shell 41 and the barrier 5 and other components.

[0103] The sealing member 43 of this embodiment includes a limiting portion 431, a fixed connection portion 432 and a sealing portion 433; the ventilation plate 42 is formed with a connecting hole 421, the fixed connection portion 432 passes through the connecting hole 421, and the limiting portion 431 and the sealing portion 433 are respectively located on both sides of the ventilation plate 42; the sealing portion 433 moves relative to the ventilation plate 42 to cover or open the ventilation port 422.

[0104] Preferably, the fixed connection portion 432 is fixedly connected to the limiting portion 431 , and the fixed connection portion 432 is fixedly connected to the sealing portion 433 .

[0105] When the gas passes through the vent 422 and pushes the seal 43 upward, the expanded limit portion 431 cannot pass through the connecting hole 421, and moves upward from the limit seal 43 to leave the vent plate 42. The gas passes through the gap between the vent plate 42 and the seal 43, and then passes through the gap between the seal portion 433 and the housing 41 into the liquid above the intake valve 4.

[0106] Implementation 3: Figure 1 As shown, this embodiment is a further embodiment based on embodiment 1 or 2, and this embodiment does not include Figure 1 The middle shell 41 and the barrier 5 and other components.

[0107] The sealing member 43 is made of elastic material and can fit the vent plate 42 more closely, thereby preventing air or liquid leakage from the gap between the vent plate 42 and the sealing member 43 .

[0108] Preferably, the elastic material is: TPU, TPE, TPR, TPV, CPE, plastic and rubber.

[0109] Implementation 4: Figure 1 As shown, this embodiment is a further embodiment based on embodiment 3, and this embodiment does not include Figure 1 The middle shell 41 and the barrier 5 and other components.

[0110] The limiting portion 431 , the fixing connection portion 432 and the sealing portion 433 are integrally formed.

[0111] During installation, the tapered and elastic limiting portion 431 can be squeezed and deformed to pass through the connecting hole 421 , and restore its original shape after passing through the connecting hole 421 , with the tapered bottom surface limiting the limiting portion 431 from leaving the connecting hole 421 .

[0112] Implementation 5: Figure 1 As shown, this embodiment is a further embodiment based on any one of embodiments 1 to 4, and this embodiment includes Figure 1 Middle barrier 5.

[0113] The vent mechanism further comprises a barrier 5, and the barrier 5 is used to control the on and off of the gas entering the reservoir through the vent mechanism in the forward direction;

[0114] Preferably, the passage of gas entering the reservoir in the forward direction through the ventilation mechanism is controlled by changing the relative position of the barrier 5 and the vent plate 42; the barrier 5 blocks the passage of gas through the vent 422 on the vent plate 42 or stops blocking the passage of gas through the vent 422 on the vent plate 42 by changing its position.

[0115] Preferably, the barrier 5 is made of elastic material.

[0116] Implementation 6: Figure 1 As shown, this embodiment is a further embodiment based on Embodiment 5. This embodiment does not include Figure 1 The middle shell 41 and other components.

[0117] The barrier 5 may have adhesive on one side. By sticking the adhesive side of the barrier 5 on the vent plate 42 , the barrier 5 blocks the vent 422 , so that gas cannot pass through the vent 422 on the vent plate 42 .

[0118] The vent 422 can be opened by removing the barrier 5 from the vent plate 42 , so that gas can pass through the vent 422 .

[0119] Preferably, the adhesive on the barrier 5 can be repeatedly pasted multiple times.

[0120] Implementation 7: Figures 1 to 4 As shown, this embodiment is a further embodiment based on embodiment 5.

[0121] The air inlet valve 4 further includes a housing 41, a vent plate 42 is inside the housing 41, and the housing 41 and the vent plate 42 are integrally formed; the on / off of the gas entering the reservoir through the vent mechanism is controlled by changing the relative position of the barrier 5 and the housing 41;

[0122] The blocking member 5 is axially translated and / or rotated relative to the housing 41 to cover or open the vent 422 .

[0123] Implementation 8: Figure 1 As shown, this embodiment is a further embodiment based on Embodiment 7. This embodiment includes Figure 1 The middle shell 41 and the barrier 5.

[0124] The blocking member 5 translates axially relative to the housing 41 .

[0125] The blocking member 5 is inserted into the air inlet of the air inlet valve 4 and / or is sleeved on the outside of the air inlet of the air inlet valve 4 .

[0126] Preferably, the barrier 5 is made of elastic material, and the barrier 5 can be in close contact with the shell 41 to prevent air leakage from the gap between the barrier 5 and the shell 41.

[0127] The barrier 5 is pulled off, and the air inlet of the air inlet valve 4 contacts with the external gas. The barrier 5 is sleeved or inserted into the housing 41 to block the air inlet of the air inlet valve 4, that is, the vent 422 does not contact with the gas outside the air inlet valve 4.

[0128] Implementation 9: Figure 4 As shown, this embodiment is a further embodiment based on embodiment 8.

[0129] The barrier 5 comprises a barrier limiting portion 59, a barrier fixing connection portion 58 and a barrier sealing portion 57, and both ends of the barrier fixing connection portion 58 are respectively fixedly connected to the barrier limiting portion 59 and the barrier sealing portion 57. Preferably, the barrier limiting portion 59, the barrier fixing connection portion 58 and the barrier sealing portion 57 are integrally formed.

[0130] The barrier vent plate 56 is inside the housing 41 and fixedly connected to the housing 41. The barrier vent plate 56 is formed with a barrier vent port 561. The barrier vent plate 56 is formed with a barrier connection hole 562. The barrier vent plate 56 is closer to the air inlet of the intake valve 4 than the vent plate 42. The barrier fixed connection portion 58 is in the barrier connection hole 562 and moves in the barrier connection hole 562. During installation, the tapered and elastic barrier limiting portion 59 can be squeezed and deformed to pass through the barrier connection hole 562, and then return to its original shape after passing through the barrier connection hole 562, and the tapered bottom surface limits the barrier limiting portion 59 from moving downward. This prevents the barrier 5 from being completely separated from the housing 41 and causing the barrier 5 to be lost.

[0131] Preferably, the barrier member sealing portion 57 is fixedly connected to the pulling member 50 .

[0132] When in use, the air inlet of the air inlet valve 4 is downward, the air outlet is upward, the blocking member 5 is at the bottom, and the air inlet valve 4 is at the top.

[0133] At this time, there is liquid above the air inlet valve 4 (at the air outlet), and there is gas below the air inlet valve 4 (at the air outlet). The liquid presses the seal 43 against the vent plate 42 due to its own gravity, closing the vent 422, so that the liquid will not flow downward through the air inlet valve 4.

[0134] In the sealed state, the barrier seal 57 is inserted into or fitted into the air inlet of the intake valve 4 to isolate the air inlet of the intake valve 4 from the outside gas. When in use, the puller 50 is pulled to drive the barrier 5 to move downward, and a gap is formed between the barrier seal 57 and the air inlet of the intake valve 4, so that the air inlet of the intake valve 4 contacts the outside gas. After being pulled out, the barrier 5 continues to move downward due to gravity, and the barrier limiter 59 limits the downward movement of the barrier 5. There is a pressure difference above and below the intake valve 4, and the gas enters the vent 422 through the gap between the barrier seal 57 and the air inlet of the intake valve 4 and the air inlet of the valve 4 in turn. The gas pushes the seal 43 upward through the vent 422, and the expanded limiter 431 cannot pass through the connecting hole 421, and thus restricts the seal 43 from moving upward and leaving the vent plate 42. The gas passes through the gap between the vent plate 42 and the seal 43 and then the gap between the seal 43 and the shell 41 into the air outlet of the air inlet valve 4, and enters the liquid above the air inlet valve 4 from the air outlet to balance the air pressure difference above and below the air inlet valve 4.

[0135] Implementation 10: Figure 3 As shown, this embodiment is a further embodiment based on embodiment 7.

[0136] The blocking member 5 rotates relative to the housing 41 .

[0137] Preferably, a cover plate is formed at the air inlet of the air inlet valve 4, and the cover plate is formed with an air inlet opening 411, and the air inlet of the air inlet valve 4 takes in air from the air inlet opening 411. A second opening 53 is formed at the end surface of the barrier 5, and the inner side of the end surface of the barrier 5 contacts the outer side of the cover plate.

[0138] Preferably, the barrier member 5 is made of elastic material to seal the air inlet opening 411 .

[0139] When in use, the air inlet of the air inlet valve 4 is downward, the air outlet is upward, the blocking member 5 is at the bottom, and the air inlet valve 4 is at the top.

[0140] At this time, there is liquid above the air inlet valve 4 (at the air outlet), and there is gas below the air inlet valve 4 (at the air outlet). The liquid presses the seal 43 against the vent plate 42 due to its own gravity, closing the vent 422, so that the liquid will not flow downward through the air inlet valve 4.

[0141] In the sealed state, the air inlet opening 411 and the second opening 53 do not overlap, and the barrier 5 completely blocks the air inlet opening 411. The barrier 5 is rotated, and the air inlet opening 411 overlaps the second opening 53, so that the air inlet opening 411 contacts the external gas, and thus the air inlet of the air inlet valve 4 contacts the external gas.

[0142] Implementation 11: Figure 2 As shown, this embodiment is a further embodiment based on embodiment 7. Figure 2 The threads of the barrier 5 and the housing 41 are not shown. Figure 2 The first opening 52 in the.

[0143] The blocking member 5 performs axial translation and rotation relative to the housing 41 , that is, the blocking member 5 performs both axial and circumferential movements relative to the housing 41 at the same time.

[0144] The blocking member 5 is inserted into the air inlet of the air inlet valve 4 and threadedly connected, or is sleeved on the outer side of the air inlet of the air inlet valve 4 and threadedly connected.

[0145] Preferably, the barrier member 5 or the air intake valve 4 is provided with a sealing ring 55 , and the sealing ring 55 is arranged between the barrier member 5 and the air intake valve 4 to seal the gap of the barrier member 5 or the air intake valve 4 .

[0146] The barrier 5 is completely screwed off from the air inlet valve 4, and the air inlet of the air inlet valve 4 contacts with the external gas. After the barrier 5 is threadedly connected with the air inlet valve 4, the air inlet of the air inlet valve 4 is isolated from the external gas.

[0147] Implementation 12: Figure 2 As shown, this embodiment is a further embodiment based on embodiment 11. Figure 2 The threads of the middle barrier 5 and the housing 41 are not shown.

[0148] The barrier member 5 defines a first opening 52 .

[0149] The blocking member 5 is rotated to move downward, so that the first opening 52 exceeds the air inlet of the air inlet valve 4, and the air inlet of the air inlet valve 4 contacts the external gas. After the gas enters the air inlet of the air inlet valve 4 from the first opening 52, the gas pushes the sealing member 43 upward through the vent 422. The first opening 52 is rotated upward so that the first opening 52 reaches above the air inlet of the air inlet valve 4; preferably, at this time, the sealing ring 55 contacts the housing 41 to seal the air inlet of the air inlet valve 4.

[0150] Implementation 13:

[0151] like Figure 23 to Figure 27As shown, this embodiment is a further embodiment based on Embodiment 7. The vent mechanism includes an air inlet valve 4 and a barrier 5, the air inlet valve 4 includes a sealing member 43, which is in the air inlet valve 4 and moves relative to the air inlet valve 4 to open or close the vent 422 of the air inlet valve 4, and the barrier 5 is used to control the on and off of the gas that enters the spray gun liquid reservoir cover through the vent mechanism.

[0152] Preferably, the blocking member 5 is rotatably connected to the air intake valve 4 to open or close the air intake valve 4 .

[0153] Preferably, the air inlet valve 4 comprises a vent plate 42 and an outer shell 44, the vent plate 42 is formed with a vent port 422, the sealing member 43 moves relative to the vent plate 42 to open or close the vent port 422; the blocking member 5 is in the outer shell 44 and is rotatably connected to the outer shell 44;

[0154] Preferably, the rotation axis of the barrier 5 is not parallel to the moving direction of the seal 43;

[0155] More preferably, the rotation axis of the barrier member 5 is perpendicular to the moving direction of the sealing member 43 .

[0156] Preferably, the sealing member 43 includes a limiting portion 431, a fixed connection portion 432 and a sealing portion 433; the vent plate 42 is formed with a connection hole 421, the fixed connection portion 432 passes through the connection hole 421, and the limiting portion 431 and the sealing portion 433 are respectively located on both sides of the vent plate 42; the sealing portion 433 moves relative to the vent plate 42 to open or close the vent 422;

[0157] Preferably, the limiting portion 431, the fixed connection portion 432 and the sealing portion 433 are integrally formed and made of elastic material;

[0158] More preferably, the elastic material is: TPU, TPE, TPR, TPV, CPE, plastic and rubber.

[0159] Preferably, the barrier member 5 further comprises an outer fixing portion 5c, which is outside the inner sealing portion 5a and the outer sealing portion 5b; the outer fixing portion 5c is rotatably connected to the outer shell 44, and the outer fixing portion 5c and the outer shell 44 are fixed by interference fit.

[0160] Preferably, the outer shell 44 is formed with a first hinge portion 442, and the outer fixing portion 5c is formed with a second hinge portion 532, and the first hinge portion 442 is connected with the second hinge portion 532 to hinge the outer shell 44 and the outer fixing portion 5c;

[0161] Preferably, the outer fixing portion 5 c is formed with a second vent 431 , and the second vent 431 is connected to the gas outside the intake valve 4 when the blocking member 5 is opened.

[0162] When there is liquid above the sealing portion 433 and gas below it, the sealing portion 433 is pressed against the vent plate 42 by the weight of the paint to block and close the vent 422 to prevent the paint from flowing downward from the vent 422 .

[0163] The intake valve 4 also includes a shell 41, the vent 422 is connected to the interior of the shell 41, and the barrier 5 includes an inner sealing portion 5a that is installed inside the shell 41 to seal the opening of the shell 41 and / or an outer sealing portion 5b that is installed outside the shell 41 to seal the opening of the shell 41, and the inner sealing portion 5a and the outer sealing portion 5b are both interference or transition fit with the shell 41.

[0164] Preferably, the interference of the inner sealing portion 5a is greater than that of the outer sealing portion 5b, and the height of the inner sealing portion 5a is less than that of the outer sealing portion 5b.

[0165] Preferably, the outer sealing portion 5b forms a first air vent 421 for gas to pass through, and the first air vent 421 is connected to the gas outside the intake valve 4 when the barrier 5 is opened; the outer fixing portion 43 forms a second air vent 431, and the second air vent 431 is connected to the gas outside the intake valve 4 when the barrier 5 is opened; the first air vent 421 and the second air vent 431 are connected.

[0166] Preferably, the barrier member 5 is formed with a recessed pressing portion 501.

[0167] More preferably, the outer shell 44 is formed with a pressing groove 231, and the pressing groove 231 and the pressing portion 501 are on the same side of the first hinge portion 442 and the second hinge portion 532;

[0168] Preferably, the shell 41, the vent plate 42, and the outer shell 44 are integrally formed and made of elastic material; preferably, the inner sealing part 5a, the outer sealing part 5b and the outer fixing part 43 are integrally formed and made of elastic material; the elastic material is PE, PP, PC, PVC, PPR, ABS plastic, PS plastic, PMMA plastic, POM plastic, PA plastic, PPO plastic, PSU plastic, PTFE plastic, ASA plastic, PPS plastic, ETFE plastic, epoxy resin, silicone plastic and rubber.

[0169] The housing 41 is provided to further seal the intake valve 4. To enter the vent 22, the external gas must first pass through the interference fit seal between the outer fixing portion 43 and the outer housing 44, and then pass through the interference fit seal between the inner sealing portion 5a and the housing 41. The outer sealing portion 5b plays the role of fixing with the housing 1 and maintaining the movement trajectory of the barrier 5 during rotation.

[0170] The inner sealing portion 5 a , the outer sealing portion 5 b and the outer fixing portion 43 are squeezed and deformed with the shell 41 and the outer shell 44 when the barrier 5 is opened or closed.

[0171] Implementation Plan 14

[0172] like Figure 20 to Figure 22 As shown, the vent mechanism includes a seal 43, and the seal 43 opens and closes the vent mechanism by changing its shape.

[0173] Preferably, the sealing member 43 is made of an elastic material, and is formed with a plurality of openings 433a which can change in size through elastic deformation. The sealing member 43 opens or closes the ventilation mechanism by opening and closing the openings 433a.

[0174] Preferably, the sealing member 43 includes a sealing portion 433 , the opening 433 a is formed on the sealing portion 433 , the sealing portion 433 is a hollow cone, and the sealing portion 433 is a rotating body.

[0175] Preferably, the generatrix of the sealing portion 433 is a curve that bends toward the central axis direction of the sealing portion 433 .

[0176] Preferably, the openings 433a are arranged circumferentially along the central axis of the sealing portion 433. Preferably, the openings 433a are arranged circumferentially uniformly along the central axis of the sealing portion 433.

[0177] Preferably, the sealing member 43 further includes a limiting portion 431 , and the sealing portion 433 and the limiting portion 431 are integrally formed.

[0178] Preferably, the elastic material is: TPU, TPE, TPR, TPV, CPE, plastic and rubber.

[0179] Working principle:

[0180] When the paint is above the ventilation mechanism, the paint is pressed against the side of the seal 43 by its own weight, causing the seal 433 to deform and further bend the generatrix of the seal 433 toward the center axis of the seal 433, thereby closing all the openings 433a (i.e., the seals 433 on both sides of the openings 433a are squeezed together to close the seals 433), preventing the paint from flowing downward through the seal 433.

[0181] When the air pressure outside the tip of the sealing part 433 is low and the air pressure at the bottom of the sealing part 433 is high, the gas pushes the opening 433a open (that is, the sealing part 433 is elastically deformed by force to make the sealing part 433 larger), so that the external gas can pass through the opening 433a.

[0182] The first fixing method of the seal 43 is:

[0183] The sealing portion 433 of the sealing member 43 is directly bonded and fixed.

[0184] The second fixing method of the seal 43:

[0185] The limiting portion 431 of the sealing member 43 is directly bonded and fixed.

[0186] The third fixing method of the seal 43:

[0187] The ventilation mechanism 3 further includes a shell 41 , which is fixedly connected to the bottom of the cup body 1 . The limiting portion 431 of the sealing member 43 is inside the shell 41 and is fixedly engaged with the shell 41 .

[0188] The fourth fixing method of the seal 43 is:

[0189] The ventilation mechanism further includes a shell 41 and a fixing member 8 . The fixing member 8 is formed with a through hole. The fixing member 8 is fixedly connected to the shell 41 and presses and fixes the limiting portion 431 of the sealing member 43 in the shell 41 .

[0190] The limiting portion 431 is a protruding portion of the sealing member 43. Preferably, the limiting portion 431 is a flange. The housing 41 is a hollow cylinder with an inner boss formed at one end.

[0191] Preferably, the fixing member 8 is fixed to the housing 41 by snapping, bonding or welding.

[0192] Embodiment 2:

[0193] Implementation 15:

[0194] like Figures 5 to 12 and Figures 14 to 19 As shown, this embodiment provides a spray gun liquid reservoir cover, including a cup cover 1, on which a liquid channel 11 is formed, and on which a vent mechanism is provided for allowing gas to pass forward into the reservoir and not allowing liquid in the reservoir to pass backward.

[0195] The ventilation mechanism of this embodiment can adopt the ventilation mechanism of any embodiment in Example 1.

[0196] Preferably, the cup cover 1 is funnel-shaped, and the liquid channel 11 is at the narrow end of the funnel.

[0197] When this embodiment adopts the embodiment without the shell 41 in Example 1, the ventilation plate 42 and the cup cover 1 are formed in one piece.

[0198] When this embodiment adopts the embodiment with the shell 41 in Example 1, the shell 41 and the cup cover 1 are formed in one piece.

[0199] Implementation 16:

[0200] like Figures 8 to 10 As shown, this embodiment is a further embodiment based on embodiment 15.

[0201] The cup cover 1 is formed with a plane 10 , a side surface of the vent plate 42 and a side surface of the plane 10 are located in the same plane, and the sealing portion 433 is in contact with the vent plate 42 and the plane 10 at the same time to cover the vent 422 .

[0202] like Fig. 9 As shown, the outflow direction of the liquid is that the liquid flows into the vent 422 after passing through the gap between the sealing portion 433 and the plane 10, and finally flows out from the vent 422. Since the sealing portion 433 is outside the housing 41, the area of ​​the sealing portion 433 can be larger than the cross-sectional area of ​​the inner cavity of the housing 41, so that the area where the sealing portion 433 is attached is increased, and the gap between the sealing portion 433 and the plane 10 can be set longer, thereby lengthening the flow distance of the liquid before flowing into the vent 422, preventing the liquid from flowing out, and increasing the airtightness of the intake valve 4.

[0203] And as Figures 1 to 4 and Fig.18 As shown, the vent plate 42 and the sealing portion 433 are both located inside the housing 41. The maximum area of ​​the sealing portion 433 can only be equal to the cross-sectional area of ​​the inner cavity of the housing 41, and the area of ​​the sealing portion 433 attached to the vent plate 42 is small, and the gap between the sealing portion 433 and the vent plate 42 is limited and cannot be lengthened, so that the flow distance of the liquid before flowing into the vent port 422 is short, the liquid is more likely to flow out, and the airtightness of the intake valve 4 is poor.

[0204] Fig. 9 The vent 422 is located at the edge of the vent plate 42, and the vent 422 is composed of the vent plate 42 and the shell 41 or the plane 10. Fig. 9 When the air inlet valve 4 is sealed, the portion of the sealing portion 433 between the outer edge of the sealing portion 433 and the vent 422 is only attached to the surface of the plane 10. Fig. 9 The ventilation plate 42 adopts Figures 1 to 4 and Fig.18 When the vent 422 shown is completely in the vent plate 42, the portion of the sealing portion 433 between the outer edge of the sealing portion 433 and the vent 422 can be attached to the plane 10 and the surface of the vent plate 42 at the same time, further increasing the attachment area of ​​the sealing portion 433, lengthening the flow distance of the liquid before flowing into the vent 422, and increasing the airtightness of the intake valve 4.

[0205] Implementation 17:

[0206] like Figures 5 to 12 and Figures 14 to 19As shown, this embodiment is a further embodiment based on Embodiment 15 or Embodiment 16.

[0207] The barrier member 5 is connected to the cup cover 1 via a connecting member 51;

[0208] Preferably, one end of the connecting member 51 is fixedly connected or rotatably connected to the barrier member 5, and the other end is fixedly connected or rotatably connected to the cup cover 1.

[0209] More preferably, the connecting member 51 is made of elastic material.

[0210] More preferably, the barrier member 5, the connecting member 51 and the cup cover 1 are integrally formed;

[0211] The connecting member 51 is used to limit the displacement distance between the barrier member 5 and the cup cover 1 , so as to prevent the barrier member 5 from being completely separated from the cup cover 1 and causing the barrier member 5 to be lost.

[0212] Implementation 18:

[0213] like Figures 14 to 18 As shown, this embodiment is a further embodiment based on any one of Embodiments 15 to 17.

[0214] The liquid passage 11 is connected to a liquid passage sealing member 6 , and the liquid passage sealing member 6 opens or closes the liquid passage 11 .

[0215] Preferably, the liquid channel sealing member 6 is made of elastic material.

[0216] Preferably, the liquid passage sealing member 6 is connected to the cup cover 1 via a liquid passage sealing member connecting member 61 .

[0217] Preferably, the liquid channel sealing member connector 61 is made of a bendable material or structure, one end of the liquid channel sealing member connector 61 is fixedly connected to the liquid channel sealing member 6 , and the other end of the liquid channel sealing member connector 61 is fixedly connected to the cup cover 1 .

[0218] The liquid channel seal connector 61 is used to limit the displacement distance between the liquid channel seal 6 and the cup cover 1 to prevent the liquid channel seal connector 61 from being completely separated from the cup cover 1 and causing the liquid channel seal 6 to be lost.

[0219] Implementation 19:

[0220] like Figures 5 to 10 As shown, this embodiment is a further embodiment based on any one of Embodiments 15 to 18.

[0221] The outer circumference of the cup cover 1 extends laterally outward to form a first horizontal ring 15; the outer edge of the first horizontal ring 15 extends vertically upward to form a first vertical ring 12; the upper edge of the first vertical ring 12 extends laterally outward to form a second horizontal ring 14; the outer edge of the second horizontal ring 14 extends vertically downward to form a second vertical ring 13 for locking the reservoir.

[0222] The first vertical ring 12 and the first horizontal ring 15 extending vertically upwards serve to make the funnel-shaped cup cover 1 sink, so as to reduce the volume occupied by the cover and facilitate transportation and storage.

[0223] Implementation 20:

[0224] like Figures 5 to 10 As shown, this embodiment is a further embodiment based on embodiment 19.

[0225] Preferably, the outer edge of the first horizontal ring 15 extends vertically upward and downward at the same time, together forming a first vertical ring 12; a flange 121 surrounding the first vertical ring 12 is formed on one side of the first vertical ring 12 close to the second vertical ring 13, and the flange 121 is used to be clamped and fixed with the soft storage cup 3; preferably, the cup cover 1 is integrally formed by injection molding with the first horizontal ring 15, the second horizontal ring 14, the first vertical ring 12 and the second vertical ring 13.

[0226] When in use, the second vertical ring 13 with internal threads is threadedly connected to the hard storage cup 2 with external threads. The flange 121 of the first vertical ring 12 is clamped and fixed to the soft storage cup 3.

[0227] Implementation 21:

[0228] like Figures 11 to 18 As shown, this embodiment is a further embodiment based on any one of Embodiments 15 to 18.

[0229] A first vertical ring 12 is formed on the inner side of the lower side of the cup cover 1 ; a second vertical ring 13 for locking the container is formed on the outer side of the lower side of the cup cover 1 .

[0230] Preferably, a flange is formed on the outer side of the first vertical ring 12, and the flange is clamped and fixed to the soft storage cup 3; preferably, the cup cover 1, the first vertical ring 12 and the second vertical ring 13 are integrally formed by injection molding.

[0231] Preferably, the reservoir comprises a hard storage cup 2 , and the hard storage cup 2 is detachably connected to the cover; preferably, the hard storage cup 2 is connected to the cover via a second vertical ring 13 .

[0232] Implementation 22:

[0233] like Fig.19As shown, this embodiment is a further embodiment based on any one of Embodiments 15 to 18.

[0234] A first vertical ring 12 is formed on the inner side of the lower side of the cup cover 1 .

[0235] Preferably, a flange 121 is formed on the outer side of the first vertical ring 12 , and the flange is clamped and fixed to the soft storage cup 3 .

[0236] Embodiment three:

[0237] Implementation 23:

[0238] like Figures 5 to 19 As shown, this embodiment provides a reservoir, including a cover and a reservoir, wherein the cover includes a cup cover 1, and a liquid channel 11 is formed on the cup cover 1, characterized in that the cup cover 1 is provided with a ventilation mechanism that allows gas to pass forward into the reservoir and does not allow liquid in the reservoir to pass backward.

[0239] The ventilation mechanism of this embodiment can adopt the ventilation mechanisms of all the embodiments in Example 1.

[0240] The sealing cap of this embodiment can adopt the sealing cap of all the embodiments in Example 2.

[0241] Implementation 24:

[0242] like Figures 5 to 19 As shown, this embodiment is a further embodiment based on Implementation Option 23.

[0243] The storage container includes a hard storage cup 2, which is detachably connected to a cover. The hard storage cup 2 is a closed type, that is, the bottom and side surfaces of the hard storage cup 2 have no openings, and only the top of the hard storage cup 2 is opened at the connection with the cover.

[0244] In the closure with the second vertical ring 13 : the hard storage cup 2 is connected to the closure via the second vertical ring 13 .

[0245] Preferably, the second vertical ring 13 is formed with an internal thread, the hard storage cup 2 is formed with an external thread, and the hard storage cup 2 is threadably connected to the second vertical ring 13 .

[0246] In the closure without the second vertical ring 13, a retaining ring 7 is also included, which is threadedly connected to the hard storage cup 2, and the retaining ring 7 contacts the top of the cup cover 1. The retaining ring 7 and the hard storage cup 2 respectively limit the movement of the cup cover 1 in two axial directions.

[0247] Method 1: Use hard storage cup 2 to store paint

[0248] When the hard storage cup 2 is used to store paint, the hard storage cup 2 is a closed type.

[0249] The hard storage cup 2 is detachably connected to the cup cover 1 by screw thread or other forms. When the hard storage cup 2 is a closed type, the cup cover 1 and the hard storage cup 2 form a closed cavity, which is isolated from the outside air.

[0250] Method 2: Use hard storage cup 2 for spraying

[0251] like Fig.17 As shown, the bottom of the hard storage cup 2 in this method of use is closed and does not include Fig.17 The vent cap 21 in the tank is installed. The barrier 5 is adjusted so that the barrier 5 no longer blocks the air inlet valve 4, and the air inlet of the air inlet valve 4 is connected to the outside. The inside of the closed hard storage cup 2 is isolated from the outside gas. The spray gun is connected to the liquid channel 11. The soft storage cup 3 is not installed. The reservoir is rotated so that the cup cover 1 faces down and the hard storage cup 2 faces up.

[0252] At this time, as the paint is sprayed from the spray gun, a vacuum is generated in the hard storage cup 2 above the air inlet valve 4, and the gas enters the vent 422 through the air inlet of the air inlet valve 4. The gas pushes the seal 43 upward through the vent 422, and the expanded limiter 431 cannot pass through the connecting hole 421, and moves upward from the limit seal 43 to leave the air vent plate 42. The gas passes through the gap between the air vent plate 42 and the seal 43, and then passes through the gap between the seal 43 and the housing 41 to enter the air outlet of the air inlet valve 4, and enters the hard storage cup 2 above the air inlet valve 4 from the air outlet to balance the pressure above and below the air inlet valve 4. At this time, although the air inlet valve 4 is open, the paint will not flow downward from the air inlet valve due to the air flow from bottom to top.

[0253] Implementation 25:

[0254] like Figures 5 to 19 As shown, this embodiment is a further embodiment based on Implementation Option 23.

[0255] The storage container comprises a hard storage cup 2 , and the hard storage cup 2 is detachably connected to the sealing cover; preferably, the hard storage cup 2 is connected to the sealing cover via a second vertical ring 13 .

[0256] The storage device further comprises a soft storage cup 3, which is sleeved inside the hard storage cup 2 and used for containing paint.

[0257] Preferably, the cup body of the hard storage cup 2 is open or closed. The hard storage cup 2 is closed, that is, there are no openings on the bottom and side of the hard storage cup 2, and there is only an opening at the connection between the top of the hard storage cup 2 and the cover. The hard storage cup 2 is open, that is, the bottom and / or side of the hard storage cup 2 are opened to balance the air pressure inside and outside the hard storage cup 2 and reduce the material and weight of the hard storage cup 2.

[0258] Preferably, a ventilation opening 20 is provided on the bottom surface of the open-type hard storage cup 2 ; preferably, a side ventilation opening 23 is provided on the side surface of the open-type hard storage cup 2 .

[0259] Method of use three: soft storage cup 3 to store paint

[0260] The cup body of the hard storage cup 2 is an open type or a closed type.

[0261] like Fig.14 , Fig.15 and Fig.18 As shown, paint is contained in the soft storage cup 3. The liquid passage sealing member 6 closes the liquid passage 11 so that the gas does not enter the soft storage cup 3 inside through the liquid passage 11. At the same time, the barrier member 5 is used to close the air inlet valve 4.

[0262] The soft storage cup 3 is connected to the cup cover 1 by a detachable connection such as a snap connection, and the cup cover 1 is airtightly sealed with the soft storage cup 3. Thus, the paint can be stored and preserved in the soft storage cup 3. The hard storage cup 2 plays a role of holding and supporting.

[0263] Method 4: Use the soft storage cup 3 to spray paint at a fixed angle

[0264] The cup body of the hard storage cup 2 is an open type or a closed type.

[0265] like Figure 8 and Fig.16 As shown, the barrier 5 is adjusted so that the barrier 5 no longer blocks the air inlet valve 4, and the air inlet of the air inlet valve 4 is connected to the outside. The hard storage cup 2 is not used. The spray gun is connected to the liquid channel 11. The reservoir is rotated so that the cup cover 1 faces downward and the soft storage cup 3 faces upward. The soft storage cup 3 is fixed on the cup cover 1, and the soft storage cup 3 and the cup cover 1 are airtight.

[0266] At this time, as the paint is sprayed from the spray gun, a vacuum is generated in the soft storage cup 3 above the air inlet valve 4, and the gas enters the vent 422 through the air inlet of the air inlet valve 4. The gas pushes the seal 43 upward through the vent 422, and the expanded limiter 431 cannot pass through the connecting hole 421, and moves upward from the limit seal 43 to leave the air vent plate 42. The gas passes through the gap between the air vent plate 42 and the seal 43, and then passes through the gap between the seal 43 and the shell 41 to enter the air outlet of the air inlet valve 4, and enters the soft storage cup 3 above the air inlet valve 4 from the air outlet to balance the pressure above and below the air inlet valve 4. At this time, although the air inlet valve 4 is open, the paint will not flow downward from the air inlet valve due to the air flow from bottom to top. The hard storage cup 2 plays a role in holding and supporting.

[0267] Method 5: Use the soft storage cup 3 to spray paint at any angle

[0268] The hard storage cup 2 is of an open type or the hard storage cup 2 is not installed.

[0269] like Fig.15 As shown, the vent opening 20 is opened to allow the inside of the hard storage cup 2 to communicate with the outside gas. The barrier 5 closes the air inlet valve 4. The spray gun is connected to the liquid channel 11. The soft storage cup 3 is fixed on the cup cover 1, and the soft storage cup 3 and the cup cover 1 are airtight.

[0270] At this time, as the paint is sprayed out from the spray gun, the soft storage cup 3 made of soft plastic continuously shrinks toward the liquid channel 11. In this way, the reservoir can be rotated at any angle, and the paint can be sprayed out from the spray gun. The soft storage cup 3 can be discarded after use.

[0271] When the cup body of the hard storage cup 2 is a closed type, the cover can be connected only to the hard storage cup 2. At this time, the use method of embodiment 21 is used in the same manner as the use method 2.

[0272] Implementation 26:

[0273] like Figures 13 to 18 As shown, this embodiment is a further embodiment based on embodiment 25.

[0274] The hard storage cup 2 is open type, and the hard storage cup 2 is only provided with a ventilation opening 20 on the bottom surface, and the ventilation opening 20 is detachably connected to the ventilation cover 21 .

[0275] When the vent cover 21 is installed on the vent opening 20, the vent cover 21 seals the bottom of the hard storage cup 2, which is equivalent to a closed hard storage cup 2. At this time, it can be used in any one of the methods 1 to 4.

[0276] When the vent cover 21 is away from the vent opening 20, the bottom of the hard storage cup 2 is open, which is equivalent to an open-type hard storage cup 2. At this time, it can be used in any one of the methods of use three to five.

[0277] Implementation 27:

[0278] like Figures 8 to 10 As shown, this embodiment is a further embodiment based on embodiment 25 or 26.

[0279] The top edge of the open opening of the soft storage cup 3 forms a supporting edge 31 .

[0280] A support edge 31 is formed at the periphery of the upper port of the soft storage cup 3, and a pressure ring 22 is formed at the upper port of the hard storage cup 2. When the soft storage cup 3 is fixed, the support edge 31 is arranged between the second horizontal ring 14 and the pressure ring 22 of the hard storage cup 2, and the second horizontal ring 14 and the pressure ring 22 press and fix the support edge 31 of the soft storage cup 3. The soft storage cup 3 can be fixed more reliably by pressing than by clamping only, and is not easy to fall off.

[0281] Embodiment 4:

[0282] Implementation 28: Figures 1 to 4 and Figure 20 to Figure 29 As shown, this embodiment provides a storage cup, including a hard storage cup 2, on which a venting mechanism is provided for allowing gas to pass into the hard storage cup 2 in a forward direction and not allowing liquid in the hard storage cup 2 to pass in a reverse direction.

[0283] The storage cup of this embodiment can be applied to any of the above-mentioned ventilation mechanisms.

[0284] Embodiment five:

[0285] Implementation 29:

[0286] like Figures 1 to 4 and Figure 20 to Figure 29 As shown, this embodiment provides a storage device using the storage cup of the fourth embodiment, and further includes a cup cover 1. The cup cover 1 is detachably connected to the hard storage cup 2, and the cup cover 1 is formed with a liquid channel 11 for fluid to pass through.

[0287] Implementation 30:

[0288] like Figure 23 to Figure 29 As shown, the storage cup of the reservoir uses the venting mechanism of embodiment 13.

[0289] Preferably, the ventilation mechanism is arranged below the bottom of the cup body of the hard storage cup 2, and when the barrier 5 is closed, the barrier bottom surface 502 is lower than or equal to the lowest point of the hard storage cup 2, and when the barrier 5 is opened, the barrier bottom surface 502 is partially or completely lower than the lowest point of the hard storage cup 2.

[0290] Preferably, a support portion 24 is formed below the bottom of the cup body of the hard storage cup 2, and when the barrier 5 is closed, the barrier bottom surface 502 and the lower end of the support portion 24 are located at the same horizontal plane.

[0291] Preferably, the shell 41, the ventilation plate 422, the outer shell 423 and the hard storage cup 2 are integrally formed and made of elastic material.

[0292] When in use, the hard storage cup 2 is filled with paint, and the cup cover 1 is fixed to the hard storage cup 2 (it can be fixed by thread connection). The spray gun is fixed on the liquid channel 11 of the cup cover 1 (it can be fixed by thread connection), and the spray gun liquid reservoir is turned upside down. At this time, the paint in the hard storage cup 2 moves downward due to gravity, and the paint moves to the cup cover 1, and the sealing part 433 leaves the ventilation plate 422 due to gravity. Press the pressing part 501 by hand, rotate and open the barrier 5, and the inside of the hard storage cup 2 is connected to the outside. The spray gun is working to spray paint. As the paint in the hard storage cup 2 becomes less and less, the external gas continuously enters the hard storage cup 2 through the second vent 531 and the first vent 521, the inside of the shell 41, the vent 422, the sealing portion 43 and the gap between the vent plate 422, so as to balance the air pressure difference between the inside and outside of the hard storage cup 2 and prevent the air pressure inside the hard storage cup 2 from being too low, resulting in an excessive pressure difference with the outside, causing the hard storage cup 2 to be damaged by force.

[0293] When the paint is used or there is some paint left in the hard storage cup 2, the spray gun liquid reservoir is rotated to an upright position. At this time, the paint in the hard storage cup 2 moves downward due to gravity. The paint moves to the sealing portion 433. The seal 43 and its sealing portion 433 are pressed against the vent plate 422 by the gravity of the paint, sealing the vent 4222. At this time, a plane is manually placed below the upright hard storage cup 2 (the plane can be parallel to the bottom of the hard storage cup 2) and a downward speed is given to the hard storage cup 2. Fig.28 and 29 As shown, the barrier 5 in the open state first contacts the plane, and then the barrier 5 is rotated by force until the bottom surface 241 of the support portion 24 also contacts the plane. At this time, the barrier 5 is just rotated to the closed position (as shown in FIG. Fig.28 As shown), the support portion 24 also contacts the plane to play a limiting role, preventing the hard storage cup 2 from continuing to move downward and damaging the ventilation mechanism.

[0294] At this time, the ventilation mechanism has three seals: the seal 43, the inner seal portion 5a and the outer fixing portion 5c.

[0295] After being placed, the support portion 24 and the bottom surface 502 of the barrier member can contact the plane at the same time, thereby increasing the stability of the hard storage cup 2 when placed.

[0296] Implementation 31:

[0297] like Figure 20 to Figure 22 and Fig.30 As shown, the storage cup of the reservoir uses the venting mechanism of embodiment 14.

[0298] When in use, the hard storage cup 2 is filled with paint, and the cup cover 1 is fixed to the cup body 1 (it can be fixed by thread connection). The spray gun is fixed on the liquid channel 11 of the cup cover 1 (it can be fixed by thread connection). At this time, the paint is pressed on the upper side of the seal 43 by its own gravity, causing the seal 433 to deform, so that the generatrix of the seal 433 is further bent toward the central axis of the seal 433, so that all the openings 433a are closed (that is, the seals 433 on both sides of the opening 433a are squeezed together to close the seal 433), preventing the paint from flowing downward through the seal 433 out of the hard storage cup 2.

[0299] The spray gun liquid reservoir is turned upside down. At this time, the paint in the hard storage cup 2 moves downward due to gravity, and the paint moves to the cup cover 1. The spray gun is working to spray paint. As the paint in the hard storage cup 2 becomes less and less, the pressure difference between the hard storage cup 2 and the outside becomes larger and larger. The outside air pressure is high, and the opening 433a is pushed open (that is, the sealing part 433 is elastically deformed by force to make the sealing part 433 larger), so that the outside gas can pass through the opening 433a.

[0300] Embodiment six:

[0301] Implementation 32:

[0302] The storage container uses any one of the cup covers in the second embodiment and the storage cup in the fourth embodiment at the same time.

[0303] The present invention is described above by way of examples, but the present invention is not limited to the above specific embodiments, and any changes or modifications made based on the present invention belong to the scope of protection claimed by the present invention.

Claims

1. A storage container, comprising a cup cover (1) and a hard storage cup (2), wherein the cup cover (1) is formed with a liquid channel (11), and the cup cover (1) and the hard storage cup (2) are detachably connected, characterized in that: The hard storage cup (2) is provided with a ventilation mechanism that allows gas to pass into the storage container in a forward direction and does not allow liquid in the storage container to pass out of the storage container in a reverse direction; The ventilation mechanism comprises an air intake valve (4), the air intake valve (4) comprises a sealing member (43), and the sealing member (43) opens or closes the air intake valve (4) by changing its position and / or shape; the sealing member (43) comprises a limiting portion (431), a fixed connection portion (432), and a sealing portion (433); the ventilation plate (42) is formed with a connecting hole (421), the fixed connection portion (432) passes through the connecting hole (421), and the limiting portion (431) and the sealing portion (433) are respectively located on two sides of the ventilation plate (42); The air inlet valve (4) further comprises a vent plate (42); the vent plate (42) is formed with a vent port (422); the sealing member (43) moves relative to the vent plate (42) to cover or open the vent port (422); The ventilation mechanism further comprises a barrier (5), and the barrier (5) is used to control the on / off of gas entering the reservoir through the ventilation mechanism in the forward direction; specifically, the on / off of gas entering the reservoir through the ventilation mechanism in the forward direction is controlled by changing the relative position of the barrier (5) and the ventilation plate (42); The barrier member (5) is formed with an inner sealing portion (5a), an outer sealing portion (5b) and an outer fixing portion (5c) from the inside to the outside, the inner sealing portion (5a) is interference-fitted or transition-fitted with the inner wall of the opening of the shell (41), the outer sealing portion (5b) is interference-fitted or transition-fitted with the outer wall of the opening of the shell (41), and the outer fixing portion (5c) is interference-fitted or transition-fitted with the inner wall of the outer shell (44); The ventilation mechanism is arranged below the bottom of the hard storage cup (2); when the barrier (5) is closed, the barrier bottom surface (502) is lower than or equal to the lowest point of the hard storage cup (2); when the barrier (5) is opened, the barrier bottom surface (502) is partially or completely lower than the lowest point of the hard storage cup (2).

2. The container according to claim 1, characterized in that: The sealing member (43) is made of elastic material.

3. The container according to claim 2, characterized in that: The elastic material is TPU, TPE, TPR, TPV, CPE, plastic and rubber.

4. The container according to claim 1, characterized in that: The cup cover (1) or the hard storage cup (2) is integrally formed with the ventilation plate (42).

5. The container according to claim 4, characterized in that: The sealing portion (433) moves relative to the ventilation plate (42) to cover or open the ventilation port (422).

6. The container according to claim 5, characterized in that: The limiting portion (431), the fixed connection portion (432) and the sealing portion (433) are integrally formed.

7. The container according to claim 1, characterized in that: The air inlet valve (4) further comprises a housing (41), wherein the vent plate (42) and the sealing member (43) are partially or completely located inside the housing (41); and the on / off of the gas entering the reservoir in the forward direction through the vent mechanism is controlled by changing the relative position of the barrier member (5) and the housing (41).

8. The container according to claim 7, characterized in that: The barrier (5) is of a plug type or a cover type.

9. The container according to claim 7, characterized in that: The barrier member (5) is connected to the cup cover (1) or the hard storage cup (2) via a connecting member (51).

10. The container according to claim 7, characterized in that: The barrier member (5), the connecting member (51) and the cup cover (1) are integrally formed.

11. The container according to claim 7, characterized in that: The barrier member (5), the connecting member (51) and the hard storage cup (2) are integrally formed.

12. The container according to claim 7, characterized in that: The cup cover (1), the shell (41) and the ventilation plate (42) are integrally formed.

13. The container according to claim 7, characterized in that: The hard storage cup (2), the shell (41) and the ventilation plate (42) are integrally formed.

14. The container according to claim 7, characterized in that: The blocking member (5) rotates relative to the housing (41) to control the on and off of gas entering the reservoir through the ventilation mechanism.

15. The container according to claim 14, characterized in that: The air intake valve (4) further comprises an outer shell (44), the shell (41) is inside the outer shell (44), and the blocking member (5) is rotatably connected to the outer shell (44).

16. The container according to claim 14, characterized in that: The rotation axis of the blocking member (5) is perpendicular to the moving direction of the sealing member (43).

17. The container according to claim 14, characterized in that: The interference fit of the inner sealing portion (5a) is greater than the interference fit of the outer sealing portion (5b), and the height of the inner sealing portion (5a) is less than the height of the outer sealing portion (5b).

18. The container according to claim 14, characterized in that: The shell (41), the ventilation plate (42) and the outer shell (44) are integrally formed and made of elastic material, wherein the elastic material is PE, PP, PC, PVC, PPR, ABS plastic, PS plastic, PMMA plastic, POM plastic, PA plastic, PPO plastic, PSU plastic, PTFE plastic, ASA plastic, PPS plastic, ETFE plastic, epoxy resin, silicone plastic and rubber.

19. The container according to claim 1, characterized in that: The sealing member (43) is formed with a plurality of openings (433a) whose sizes can be changed by elastic deformation, and the sealing member (43) opens or closes the ventilation mechanism by opening and closing the openings (433a).

20. The container according to claim 19, characterized in that: The sealing member (43) comprises a sealing portion (433), the opening (433a) is formed on the sealing portion (433), the sealing portion (433) is a hollow cone, and the sealing portion (433) is a rotating body.

21. The container according to claim 19, characterized in that: The generatrix of the sealing portion (433) is a curve that bends toward the central axis of the sealing portion (433).

22. The container according to claim 19, characterized in that: The openings (433a) are arranged in a circle along the central axis of the sealing portion (433).

23. The container according to claim 19, characterized in that: The openings (433a) are evenly arranged in a circumferential pattern along the central axis of the sealing portion (433).

24. The container according to claim 19, characterized in that: The sealing member (43) further comprises a limiting portion (431), and the sealing portion (433) and the limiting portion (431) are integrally formed.

25. The container according to claim 19, characterized in that: The air intake valve (4) further comprises a housing (41), wherein the housing (41) is fixedly connected to the cup cover (1) or the hard storage cup (2), and the sealing member (43) and the fixing portion (322) are inside the housing (41) and fixed to the housing (41).

26. The container according to claim 1, characterized in that: The outer circumference of the cup cover (1) extends outwardly and laterally to form a first horizontal ring (15); the outer edge of the first horizontal ring (15) extends upwardly and vertically to form a first vertical ring (12); the upper edge of the first vertical ring (12) extends outwardly and laterally to form a second horizontal ring (14); the outer edge of the second horizontal ring (14) extends downwardly and vertically to form a second vertical ring (13) for locking the hard storage cup (2).

27. The container according to claim 26, characterized in that: The outer edge of the first horizontal ring (15) extends vertically upward and downward at the same time, together forming a first vertical ring (12); a flange (121) surrounding the first vertical ring (12) is formed on one side of the first vertical ring (12) close to the second vertical ring (13).

28. The container according to claim 26, characterized in that: The cup cover (1) is integrally formed by injection molding with the first horizontal ring (15), the second horizontal ring (14), the first vertical ring (12) and the second vertical ring (13).

29. The container according to claim 1, characterized in that: A support portion (24) is formed below the bottom of the hard storage cup (2); when the barrier (5) is closed, the barrier bottom surface (40) and the support bottom surface (241) of the support portion (24) are located at the same level.

30. The container according to claim 26, characterized in that: It also comprises a soft storage cup (3), wherein the soft storage cup (3) is fixedly connected to the flange (121) of the first vertical ring (12).

31. The container according to claim 30, characterized in that: A supporting edge (31) is formed on the periphery of the upper port of the soft storage cup (3), and a pressure ring (22) is formed on the upper port of the hard storage cup (2). The supporting edge (31) is arranged between the second horizontal ring (14) and the pressure ring (22) of the hard storage cup (2), and the second horizontal ring (14) and the pressure ring (22) press and fix the supporting edge (31) of the soft storage cup (3).

32. The container according to claim 30, characterized in that: The cup body of the hard storage cup (2) is open type or closed type.

33. The container according to claim 5, characterized in that: The cup cover (1) is formed with a plane (10), a side surface of the ventilation plate (42) and a side surface of the plane (10) are located in the same plane, and the sealing portion (433) is in contact with the ventilation plate (42) and the plane (10) at the same time to cover the ventilation port (422).

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