CN213051217U - Storage cup and spray gun liquid storage - Google Patents

Abstract

The utility model relates to a store cup and spray gun liquid storage ware, store the cup, comprising a cup body, be provided with on the cup and allow gaseous forward through getting into the cup and not allowing the reverse ventilation mechanism who passes through of liquid in the cup. When the blocking piece is opened, the blocking piece is a labor-saving lever, so that the blocking piece can be easily opened; when the blocking piece is closed, the cup body can be automatically closed only by being placed on the plane, the cup body can contact the plane to give a speed to the cup body, the blocking piece is rotated by kinetic energy of the cup body when the cup body is contacted with the plane, and the blocking piece is not required to be buckled on the air inlet valve by manual pressing, so that the force required by the method is small, and the physical strength and time of workers can be saved; if the paint spraying is not finished by using all the paint in the storage cup, the sealing piece returns to the vent plate by gravity only by rightly arranging the cup body and is pressed at the vent of the vent plate by the pressure of the liquid, so that the liquid leakage is prevented, and the operation is simple and rapid.

Description

Storage cup and spray gun liquid storage

Technical Field

The utility model relates to a store cup and spray gun liquid storage ware.

Background

At present, when a spray gun is connected with a spray gun to spray paint outwards, liquid in a storage cup is continuously reduced, so that the external air pressure difference in the spray gun liquid storage cup is continuously increased, and further the storage cup is stressed and broken to cause the paint in the storage cup to flow out.

The existing method for balancing the internal and external air pressure difference of the spray gun liquid storage device is to arrange an air vent on the cup bottom or the cup wall of a storage cup, and the air vent is detachably connected with a cover. When the storage cup is inverted for painting, the cover is opened to allow the air holes to continuously balance the air pressure difference.

However, the above method has the following problems:

1. the cover needs larger force and larger action amplitude when being buckled, and the physical strength and time of workers are wasted;

2. when the whole paint in the storage cup is not used up, the air vent and the cover are positioned below the paint. The paint dries up in the gaps between the vent holes and the lid with time, making the lid difficult to open.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems, provides a storage cup and a spray gun liquid storage device, and solves the problems that the cover needs larger force and larger action amplitude when being buckled down, and the physical strength and time of workers are wasted; the paint dries up in the gaps between the air holes and the cover along with the increase of time, and the problem that the cover is difficult to open is caused.

The storage cup comprises a cup body, and a ventilation mechanism which allows gas to pass into the cup body in a forward direction and does not allow liquid in the cup body to pass in a reverse direction is arranged on the cup body.

Further, the ventilation mechanism includes a seal that opens or closes an intake valve by a change in position and/or shape;

preferably, the sealing element is made of an elastic material;

more preferably, the elastic material is: TPU, TPE, TPR, TPV, CPE, plastic or rubber.

Further, the ventilation mechanism further comprises an air inlet valve, the air inlet valve comprises a ventilation plate, the ventilation plate is provided with a ventilation hole, and the sealing member moves relative to the ventilation plate to open or close the ventilation hole;

preferably, the cup body and the vent plate are integrally formed.

Further, the sealing element comprises a limiting part, a fixed connecting part and a sealing part; the ventilation plate is provided with a connecting hole, the fixed connecting part penetrates through the connecting hole, and the limiting part and the sealing part are respectively positioned on two sides of the ventilation plate; the seal moves relative to the vent plate to open or close the vent.

Preferably, the limiting part, the fixing connection part and the sealing part are integrally formed.

Further, the ventilation mechanism also comprises a blocking piece which is used for controlling the on and off of the gas which is positively passed through the ventilation mechanism and enters the storage cup;

preferably, the on/off of the gas entering the storage cup through the ventilation mechanism is controlled by the relative position change of the blocking member and the ventilation plate.

Further, the air vent mechanism is arranged below the bottom of the cup body, the bottom surface of the blocking piece is lower than or equal to the lowest point of the cup body when the blocking piece is closed, and the bottom surface of the blocking piece is partially or completely lower than the lowest point of the cup body when the blocking piece is opened.

Preferably, a supporting part is formed below the bottom of the cup body, and the bottom surface of the blocking part and the bottom surface of the supporting part are positioned on the same horizontal plane when the blocking part is closed.

Further, the blocking piece is connected with the air inlet valve in a rotating mode, and the rotating shaft of the blocking piece is not parallel to the moving direction of the sealing piece;

preferably, the axis of rotation of the blocking member is perpendicular to the direction of movement of the sealing member.

The air inlet valve further comprises a shell, the air vent is communicated with the interior of the shell, the barrier piece further comprises an inner sealing part which is arranged in the shell in a penetrating mode and seals the opening of the shell and/or an outer sealing part which is sleeved on the exterior of the shell and seals the opening of the shell, and the inner sealing part and the outer sealing part are in interference fit or transition fit with the shell;

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;

preferably, the outer sealing part is formed with a first vent through which gas passes, and the first vent is in gas communication with the outside of the intake valve when the barrier is opened.

Further, the air inlet valve further comprises an outer shell, and the outer shell is arranged outside the shell; the barrier further comprises an outer fixing part, and the outer fixing part is arranged on the outer sides of the inner sealing part and the outer sealing part; the outer fixing part is rotationally connected with the outer shell, and the outer fixing part is fixed with the outer shell in an interference fit manner;

preferably, the outer fixing portion is formed with a second vent that communicates with the gas outside the intake valve when the barrier is opened;

preferably, the outer shell is formed with two first hinge portions, and the outer fixing portion is formed with two second hinge portions, and the first hinge portions and the second hinge portions are connected to hinge the outer shell and the outer fixing portion;

more preferably, the barrier bottom surface is formed with sunken pressing portion, pressing portion and second vent are located the both sides of barrier rotation axis respectively, press the outer fixed part of portion one side to the distance of barrier rotation axis more than or equal to the outer fixed part of second vent one side to the distance of barrier rotation axis.

More preferably, the outer shell is provided with a pressing groove, and the pressing groove and the pressing part are arranged on the same side of the barrier rotating shaft;

preferably, the shell, the vent plate, the outer shell and the bottom of the cup body are integrally formed and made of elastic materials; preferably, the inner sealing part, the outer sealing part and the outer fixing part are integrally formed and made of elastic materials;

more preferably, 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, or rubber.

The spray gun liquid storage device using the storage cup also comprises a cup cover, and the cup cover is detachably connected with the cup body; the cup cover is provided with a liquid channel for fluid to pass through.

The cup is characterized in that when the cup is used, paint is filled in the cup, the cup cover is fixed with the cup, the spray gun is fixed on a liquid channel of the cup cover, the spray gun liquid container is rotated and inverted, the paint in the cup moves downwards under the action of gravity, the paint moves to the cup cover, the sealing part leaves the vent plate under the action of gravity, the pressing part is pressed by hands to rotate and open the blocking part, and the inside of the cup is communicated with the outside; the spray gun sprays paint when working, and as the paint in the spray cup is less and less, external air continuously enters the cup body through the second vent hole, the first vent hole, the inner part of the shell, the vent hole, the sealing part and the gap of the vent plate in sequence, so that the air pressure difference inside and outside the cup body is balanced;

when the paint is used or the paint is remained in the cup body, the spray gun liquid container is rotated and rightly placed, at the moment, the paint in the cup body moves downwards under the action of gravity, the paint moves to the sealing part, and the sealing part are pressed on the vent plate under the action of the gravity of the paint to seal the vent hole; a plane is arranged below the upright cup body, and the cup body is fed with a downward speed by hands; the barrier member in an open state is firstly contacted with the plane, then the barrier member is stressed to rotate until the bottom surface of the supporting part is also contacted with the plane, and at the moment, the barrier member just rotates to a closed position.

The utility model has the advantages of as follows:

1. when the blocking piece is closed, the cup body can be automatically closed only by being placed on the plane, the cup body can contact the plane to give a speed to the cup body, the blocking piece is rotated by kinetic energy of the cup body when the cup body is contacted with the plane, and the blocking piece is not required to be buckled on the air inlet valve by manual pressing, so that the force required by the method is small, and the physical strength and time of workers can be saved;

2. if the paint spraying is not finished, all the paint in the storage cup is only required to be rightly placed, the sealing element returns to the vent plate under the action of gravity and is pressed at the vent of the vent plate under the action of the pressure of the liquid, so that the liquid is prevented from leaking, and the operation is simple and quick;

3. the inner seal completely seals off paint in the housing, avoiding opening and closing difficulties caused by paint leaving the housing into the junction of the air inlet valve and the barrier.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawing in the following description is only an embodiment of the invention, and that for a person skilled in the art, other embodiments can be derived from the drawing provided without inventive effort.

FIG. 1: the utility model discloses a schematic diagram of one of the ventilation mechanisms;

FIG. 2: the second schematic diagram of the ventilation mechanism of the utility model;

FIG. 3: the third schematic diagram of the ventilation mechanism of the utility model;

FIG. 4: the fourth schematic diagram of the ventilation mechanism of the utility model;

FIG. 5: the overlooking structure schematic diagram of the ventilation mechanism of the utility model;

FIG. 6: the cross-sectional structure of the ventilation mechanism of the utility model is schematically shown at A;

FIG. 7: the cross-sectional structure of the ventilation mechanism at the position B is schematically shown;

FIG. 8: the cross-sectional structure of the ventilation mechanism at the position C is schematically shown;

FIG. 9: the utility model discloses a three-dimensional structure schematic diagram (closed state) of the ventilation mechanism;

FIG. 10: the structure schematic diagram of the ventilation mechanism barrier piece of the utility model;

FIG. 11: the structure schematic diagram of the air inlet valve of the ventilation mechanism of the utility model;

FIG. 12: the cross-sectional structure of the ventilation mechanism of the utility model is schematically shown (opened state);

FIG. 13: the utility model discloses a three-dimensional structure schematic diagram (open state) of the ventilation mechanism;

FIG. 14: the utility model has a five-dimensional schematic view of the ventilation mechanism;

FIG. 15: the cross-sectional view of the fifth ventilation mechanism of the utility model (the fourth fixing mode);

FIG. 16: the cross-sectional view of the fifth ventilation mechanism of the utility model (the third fixing mode);

FIG. 17: the three-dimensional structure of the utility model is shown schematically;

FIG. 18: the utility model has a three-dimensional structure schematic diagram (closed state);

FIG. 19: the utility model discloses a spatial structure sketch map (open mode).

Detailed Description

The invention will be further described with reference to the following figures and examples:

reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The first embodiment is as follows:

embodiment 1: as shown in fig. 1, the present embodiment provides a ventilation mechanism including: an inlet valve 2, said inlet valve 2 allowing gas to pass forward into the reservoir and not allowing liquid in the reservoir to pass backward through the inlet valve 2.

Preferably, said intake valve 2 comprises a breather plate 22; the vent plate 22 is formed with a vent hole 222, and the sealing member 3 moves relative to the vent plate 22 to block or open the vent hole 222;

this embodiment does not include components such as the housing 21 and the barrier 4 of fig. 1.

Closing the vent 222: when seal 3 blocks vent port 222, vent port 222 is closed by seal 3 and gas cannot pass forward through gas inlet valve 2. At this time, the lower side of the sealing member 3 may be gas, the upper side may be liquid, and the liquid above the sealing member 3 applies a downward force to the sealing member 3 by its own weight, so that the sealing member 3 is in close contact with the vent plate 22 to seal the vent hole 222.

Opening of the vent 222: when the seal 3 does not obstruct the vent 222, the vent mechanism may be rotated 180 degrees as a whole (i.e., 180 degrees in fig. 1). The sealing member 3 is moved away from the vent plate 22 by the downward gravity, and the sealing member 3 and the vent plate 22 form a gap through which gas can pass. At this time, if the gas pressure at the gravity direction of the sealing member 3 is low (may be the gas pressure caused by continuous painting by a spray gun), and the gas pressure at the gravity direction of the sealing member 3 is high (may be the atmospheric pressure), the gas at the high gas pressure passes through the vent hole 222 and the gap between the vent plate 22 and the sealing member 3 in sequence, and enters the low gas pressure.

Embodiment 2: as shown in fig. 1, the present embodiment is a further solution based on embodiment 1, and does not include components such as the housing 21 and the barrier 4 in fig. 1.

The sealing member 3 of the present embodiment includes a stopper portion 31, a fixed connection portion 32, and a sealing portion 33; the vent plate 22 is formed with a connection hole 221, the fixing connection part 32 penetrates through the connection hole 221, and the limit part 31 and the sealing part 33 are respectively located at two sides of the vent plate 22; the seal 33 moves relative to the vent panel 22 to open or close the vent opening 222.

Preferably, the fixing connection portion 32 is fixedly connected to the stopper portion 31, and the fixing connection portion 32 is fixedly connected to the sealing portion 33.

Closing the vent 222: the sealing part 3 completely covers all the vent holes 222, and the liquid presses the sealing part 3 to press the sealing part 3 to the vent holes 222, so that the liquid is prevented from leaking downwards under the action of gravity.

Opening of the vent 222: when the seal 3 does not obstruct the vent 222, the vent mechanism may be rotated 180 degrees as a whole (i.e., 180 degrees in fig. 1). The sealing member 3 moves away from the vent plate 22 by the downward gravity, the expanded stopper 31 cannot pass through the connecting hole 221 to restrict the downward displacement of the sealing member 3, and the fixing connector 32 restricts the other displacement of the sealing member 3 in the opposite direction, thereby restricting the displacement range of the sealing member 3 relative to the vent plate 22. The gas passes through the gap between the vent plate 22 and the seal 3 and then enters the liquid above the intake valve 2 through the gap between the seal 33 and the housing 21.

Embodiment 3: as shown in fig. 1, the present embodiment is a further embodiment based on embodiment 1 or 2, and does not include the components of the case 21 and the barrier 4 in fig. 1.

The sealing member 3 is made of an elastic material. The sealing member 3 made of an elastic material can be more closely attached to the air-channeled panel 22, thereby preventing air leakage or liquid leakage from the gap between the air-channeled panel 22 and the sealing member 3.

Preferably, the elastic material is: TPU, TPE, TPR, TPV, CPE, plastic or rubber.

Embodiment 4: as shown in fig. 1, this embodiment is a further embodiment based on any one of embodiments 1 to 3, and does not include components such as the case 21 and the barrier 4 in fig. 1.

The stopper portion 31, the fixing connection portion 32, and the sealing portion 33 are integrally formed.

When the stopper 31 is mounted, the stopper 31 is elastically deformed to pass through the connection hole 221, and returns to its original shape after passing through the connection hole 221, and the stopper 31 is restricted from leaving the connection hole 221 by the bottom surface of the taper.

Embodiment 5: as shown in fig. 1, this embodiment is a further embodiment based on any one of embodiments 1 to 4, including barrier 4 in fig. 1.

The venting mechanism further comprises a barrier 4, the barrier 4 being used to control the on and off of gas being passed through the venting mechanism into the reservoir;

preferably, the on and off of the gas entering the reservoir through the venting mechanism is controlled by the relative position change of the barrier 4 and the vent plate 22; the blocking member 4 blocks the gas from passing through the vent holes 222 on the vent plate 22 or stops blocking the gas from passing through the vent holes 222 on the vent plate 22 by the change of the position.

When vent 222 is closed: vent 222 is closed with barrier 4.

When vent 222 is opened: barrier 4 is moved away from vent 222.

Embodiment 6: as shown in fig. 1, the present embodiment is a further embodiment based on embodiment 5. The present embodiment does not include the housing 21 and the like in fig. 1.

The blocking member 4 may be a face with an adhesive, and the blocking member 4 blocks the vent holes 222 by adhering the face of the blocking member 4 with the adhesive to the vent plate 22, so that the gas cannot pass through the vent holes 222 on the vent plate 22.

Vent 222 may be opened by removing barrier 4 from vent panel 22, allowing gas to pass through vent 222.

Preferably, the adhesive on the barrier 4 can be applied repeatedly several times.

Embodiment 7: as shown in fig. 1 to 4, the present embodiment is a further embodiment based on embodiment 5.

The air intake valve 2 further comprises a shell 21, a vent plate 22 is arranged inside the shell 21, and the shell 21 and the vent plate 22 are integrally formed; controlling the on and off of gas entering the reservoir through the venting mechanism in the forward direction by the relative position change of the barrier 4 and the housing 21;

barrier 4 translates and/or rotates axially relative to housing 21 to block or unblock vent 222.

Preferably, barrier 4 is made of an elastic material.

Embodiment 8: as shown in fig. 1, the present embodiment is a further embodiment based on embodiment 7. This embodiment includes housing 21 and barrier 4 of fig. 1.

Barrier 4 translates axially relative to housing 21.

The blocking member 4 is inserted into the intake port of the intake valve 2 and/or fitted outside the intake port of the intake valve 2.

Preferably, the blocking member 4 is made of an elastic material, and the blocking member 4 can be in close contact with the housing 21 to prevent air leakage from a gap between the blocking member 4 and the housing 21.

The blocking piece 4 is pulled down, and the air inlet of the air inlet valve 2 is contacted with the outside air. The blocking member 4 is inserted or inserted into the housing 21 to block the air inlet of the air inlet valve 2, i.e. the air inlet 222 is not in contact with the air outside the air inlet valve 2.

Embodiment 9: as shown in fig. 4, the present embodiment is a further embodiment based on embodiment 8.

The blocking member 4 includes a blocking member limiting portion 61, a blocking member fixing and connecting portion 62 and a blocking member sealing portion 63, and both ends of the blocking member fixing and connecting portion 62 are respectively fixedly connected with the blocking member limiting portion 61 and the blocking member sealing portion 63. Preferably, the barrier stopper 61, the barrier fixing connection part 62 and the barrier sealing part 63 are integrally formed.

The blocking member vent plate 24 is fixedly connected to the housing 21 inside the housing 21, the blocking member vent hole 241 is formed in the blocking member vent plate 24, the blocking member connection hole 242 is formed in the blocking member vent plate 24, and the blocking member vent plate 24 is closer to the intake port of the intake valve 2 than the vent plate 22. The barrier securing connection 62 moves in the barrier connection hole 242 and in the barrier connection hole 242. When the device is installed, the conical and elastic barrier limiting part 61 can be extruded and deformed to pass through the barrier connecting hole 242, and the original shape is restored through the barrier connecting hole 242, and the downward movement of the barrier limiting part 62 is limited by the conical bottom surface. Thereby preventing barrier 4 from completely disengaging housing 21 and causing barrier 4 to be lost.

Preferably, the blocking member sealing portion 57 is fixedly connected to the pulling member 50.

Preferably, the barrier seal 57 is an interference fit with the inner wall of the housing 21.

When vent 222 is closed: the stopper sealing portion 63 is inserted into the housing 21, and the vent port 222 is closed with the stopper sealing portion 63.

When vent 222 is opened: the finger pulls the slider 50 to pull the stopper seal 63 out of the housing 21, and the stopper seal 63 is separated from the vent opening 222.

Embodiment 10: as shown in fig. 3, the present embodiment is a further embodiment based on embodiment 7.

The blocking member 4 rotates relative to the housing 21 and the rotation axis of the blocking member 4 is not parallel to the moving direction of the sealing member 3;

preferably, a cover plate 24 is formed at the air inlet of the intake valve 2, the cover plate 24 is formed with an air inlet opening 242, and the air inlet of the intake valve 2 is fed from the air inlet opening 242. A second opening 402 is formed at the end face of the barrier member 4, and the inner side of the end face of the barrier member 4 contacts with the outer side of the cover plate 24.

Preferably, the blocking member 4 is made of an elastic material, and plays a role of sealing the air inlet opening 211.

In the sealed state, the air inlet opening 242 and the second opening 402 do not overlap, and the barrier 4 completely blocks the air inlet opening 242.

The rotation blocking member 4, the intake opening 242 and the second opening 402 overlap, so that the intake opening 242 is in contact with the external gas, and thus the intake port of the intake valve 2 is in contact with the external gas.

Embodiment 11: as shown in fig. 2, the present embodiment is a further embodiment based on embodiment 7. The threads of barrier 4 and housing 21 are not shown in fig. 2. Barrier 4 does not include first opening 52 in fig. 2.

Blocking member 4 is axially translated and rotated relative to housing 21, i.e. blocking member 4 simultaneously performs both axial and circumferential movements relative to housing 21.

The blocking piece 4 is inserted into the air inlet of the air inlet valve 2 and is in threaded connection or is sleeved outside the air inlet of the air inlet valve 2 and is in threaded connection.

Preferably, blocking member 4 or inlet valve 2 is fitted with a sealing ring 44, said sealing ring 44 being arranged between blocking member 4 and inlet valve 2 for sealing the gap of blocking member 4 or inlet valve 2.

Blocking member 4 is completely unscrewed from intake valve 2, and the intake port of intake valve 2 comes into contact with the outside air. After the blocking piece 4 is in threaded connection with the air inlet valve 2, the air inlet of the air inlet valve 2 is isolated from outside air.

Embodiment 12: as shown in fig. 2, the present embodiment is a further embodiment based on embodiment 11. The threads of barrier 4 and housing 21 are not shown in fig. 2.

The blocking member 4 is opened with a first opening 45.

When the device is opened: the blocking member 4 is rotated to move the blocking member 4 in a direction away from the sealing member 3, so that the first opening 45 is beyond the inlet of the intake valve 2 and the inlet of the intake valve 2 is in contact with the outside air. Gas enters the housing 21 from the first opening 45 after entering the inlet of the inlet valve 2.

When closing: blocking member 4 is rotated in the reverse direction until sealing ring 44 contacts housing 21 and seals the inlet of inlet valve 2.

Embodiment 13: as shown in fig. 5 to 13, the present embodiment is a further embodiment based on embodiment 7.

The blocking member 4 rotates relative to the housing 21 and the rotational axis of the blocking member 4 is perpendicular to the moving direction of the sealing member 3.

Preferably, the intake valve 2 further includes a housing 21, the vent 222 communicates with the inside of the housing 21, the barrier 4 further includes an inner sealing portion 41 that penetrates the inside of the housing 21 to seal the opening of the housing 21 and/or an outer sealing portion 42 that is sleeved outside the housing 21 to seal the opening of the housing 21, and both the inner sealing portion 41 and the outer sealing portion 42 are in interference fit or transition fit with the housing 21;

preferably, the interference of the inner sealing portion 41 is greater than that of the outer sealing portion 42, and the height of the inner sealing portion 41 is less than that of the outer sealing portion 42;

preferably, the outer sealing portion 42 is formed with a first vent 421 through which gas passes, and the first vent 421 communicates with the gas outside the intake valve 2 when the blocking member 4 is opened.

Preferably, the intake valve 2 further comprises an outer casing 23, the outer casing 23 being outside the casing 21; the barrier 4 further comprises an outer fixing portion 43, the outer fixing portion 43 being outside the inner seal portion 41 and the outer seal portion 42; the outer fixing part 43 is rotatably connected with the outer shell 23, and the outer fixing part 43 is fixed with the outer shell 23 through interference fit;

preferably, the outer fixing portion 43 is formed with a second vent 431, and the second vent 431 is communicated with the gas outside the intake valve 2 when the barrier 4 is opened;

preferably, the outer shell 23 is formed with a first hinge 232, the outer fixing portion 43 is formed with a second hinge 432, and the first hinge 232 and the second hinge 432 are connected to hinge the outer shell 23 and the outer fixing portion 43;

more preferably, the barrier bottom surface 40 is formed with a depressed pressing portion 401, the pressing portion 401 and the second vent 431 are respectively located at two sides of the first hinge portion 232 and the second hinge portion 432, and the distance from the outer fixing portion 43 at the pressing portion 401 side to the first hinge portion 232 and the second hinge portion 432 is greater than or equal to the distance from the outer fixing portion 43 at the second vent 431 side to the first hinge portion 232 and the second hinge portion 432.

More preferably, the outer housing 23 is formed with a pressing groove 231, and the pressing groove 231 and the pressing portion 401 are on the same side of the first hinge portion 232 and the second hinge portion 432;

preferably, the housing 21, the vent plate 22 and the outer housing 23 are integrally formed and made of an elastic material; preferably, the inner sealing portion 41, the outer sealing portion 42 and the outer fixing portion 43 are integrally formed and made of an elastic material;

more preferably, 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, or rubber.

When vent 222 is opened: as shown in fig. 5 to 9, the barrier 4 is in a closed state. The pressing portion 401 is pressed by a hand, and the pressing groove 231 accommodates a finger pressing the pressing portion 401. Rotation of barrier 4 moves first vent 421 and second vent 431 out of outer housing 23. At this time, the inner sealing portion 41 is completely or partially removed from the opening of the housing 21, and the external air enters the opening of the housing 21 through the second vent 431 and the first vent 421, as shown in fig. 12 and 13.

When vent 222 is closed: as shown in fig. 12 and 13, barrier 4 is in an open state. The force of barrier 4 on the side of first vent 421 and second vent 431 toward the inside of outer housing 23 closes barrier 4. The inner sealing part 41 is inserted into the housing 21 for sealing and fixing, the outer fixing part 43 is inserted into the outer housing 23 for sealing and fixing, and the outer sealing part 42 is sleeved outside the housing 21 for fixing, so that the closed blocking member 4 cannot rotate relative to the outer housing 23.

The inner seal 41, the outer seal 42 and the outer fixing 43 are deformed to fit the housing 21 and the outer housing 23 during the process of opening or closing the barrier 4. Meanwhile, the interference fit ensures that the barrier member 4 cannot rotate under the condition of not applying external force in the opening and closing states.

Embodiment 14

As shown in fig. 14 to 16, the vent mechanism includes a seal member 3, and the seal member 3 opens and closes the vent mechanism by changing the shape.

Preferably, the sealing member 3 is made of an elastic material, the sealing member 3 is formed with a plurality of openings 33a that can change in size by elastic deformation, and the sealing member 3 opens or closes the ventilation mechanism by opening and closing the openings 33 a.

Preferably, the seal 3 includes a seal portion 33, the opening 33a is formed in the seal portion 33, the seal portion 33 is a hollow cone, and the seal portion 33 is a rotational body.

Preferably, a generatrix of the seal portion 33 is curved in a central axis direction of the seal portion 33.

Preferably, the openings 33a are circumferentially arranged along a central axis of the sealing part 33. Preferably, the openings 33a are arranged in a uniform circumferential arrangement along the central axis of the sealing part 33

Preferably, the sealing member 3 further includes a position-limiting portion 31, and the sealing portion 33 is integrally formed with the position-limiting portion 31.

Preferably, the elastic material is: TPU, TPE, TPR, TPV, CPE, plastic or rubber.

The working principle is as follows:

when the paint is above the ventilation mechanism, the paint is pressed above the side surface of the sealing element 3 by the self gravity, the sealing part 33 is deformed, the generatrix of the sealing part 33 is further bent towards the central axis direction of the sealing part 33, all the openings 33a are closed (namely, the sealing parts 33 on both sides of the openings 33a are pressed together to close the sealing part 33), and the paint is prevented from flowing out downwards through the sealing part 33.

When the gas pressure outside the tip end of the sealing part 33 is low and the gas pressure at the bottom end of the sealing part 33 is high, the gas pushes the opening 33a open (i.e., the sealing part 33 is elastically deformed by force to enlarge the sealing part 33), so that the external gas can pass through the opening 33 a.

First fixing mode of the sealing member 3:

the seal portion 33 of the seal 3 is directly bonded and fixed.

Fixing mode two of the sealing member 3:

the stopper 31 of the seal member 3 is directly bonded and fixed.

Fixing mode three of the sealing member 3:

the ventilation mechanism 3 further comprises an air inlet valve 2, the air inlet valve 2 is fixedly connected with the bottom of the cup body 1, and the limiting part 31 of the sealing element 3 is fixedly connected with the air inlet valve 2 in a clamping mode.

Fixing mode four of the sealing member 3:

the ventilation mechanism 3 further comprises an air inlet valve 2 and a fixing piece 6, a through hole is formed in the fixing piece 6, and the fixing piece 6 is fixedly connected with the air inlet valve 2 and compresses and fixes the limiting part 31 of the sealing piece 3 in the air inlet valve 2.

The stopper 31 is a projection of the seal member 3. Preferably, the stopper 31 is a flange. The air intake valve 2 is a hollow cylinder having an inner boss formed at one end thereof.

Preferably, the fixing member 6 is fixed to the intake valve 2 by clipping, bonding or welding.

Example two:

embodiment 15: as shown in fig. 1 to 19, the present embodiment provides a storage cup comprising a cup body 1, wherein the cup body 1 is provided with a ventilation mechanism which allows gas to pass into the cup body 1 in a forward direction and does not allow liquid in the cup body 1 to pass in a reverse direction.

Any of the above-described ventilation mechanisms can be applied to the storage cup of the present embodiment.

Preferably, the venting mechanism is disposed below cup bottom 10 of cup 1, barrier 4 has barrier bottom 40 lower than or equal to the lowest point of cup 1 when closed, and barrier 4 has barrier bottom 40 partially or completely lower than the lowest point of cup 1 when open.

Preferably, a support 11 is formed below the cup bottom 10, and the barrier bottom surface 40 of the barrier 4 is located at the same level as the lower end of the support 11 when the barrier is closed.

Preferably, the shell 21, the vent plate 22, the outer shell 23 and the cup bottom 10 are integrally formed and made of an elastic material.

Example three:

embodiment 16:

as shown in fig. 5 to 19, the present embodiment provides a spray gun liquid reservoir using the storage cup, and further comprises a cup cover 5, wherein the cup cover 5 is detachably connected with the cup body 1, and the cup cover 5 is provided with a liquid passage 51 for fluid to pass through.

When in use, the cup body 1 is internally provided with paint vehicle, and the cup cover 5 is fixed with the cup body 1 (can be fixed by screw thread connection). The spray gun is fixed on the liquid channel 51 of the cup cover 5 (can be fixed by screw thread connection), and the liquid container of the spray gun is rotated and inverted. At this time, the paint in the cup body 1 moves downwards under the gravity, the paint moves to the cup cover 5, and the sealing part 33 leaves the vent plate 22 under the gravity. Pressing part 401 is pressed by hand to rotate and open barrier member 4, and the inside of cup body 1 is communicated with the outside. Spray gun work sprays paint, and along with spout the paint vehicle in the cup 1 less and less, outside gas constantly enters into inside the cup 1 through second vent 431 and first vent 421, inside the casing 21, vent 222, sealing 3 and breather plate 22's space in proper order, and the inside and outside atmospheric pressure difference of balanced cup 1 prevents that the inside atmospheric pressure of cup 1 from crossing excessively to cause with external atmospheric pressure difference too big, causes cup 1 atress to damage.

When the paint is left in cup 1 or after use, the spray gun liquid reservoir is rotated to a normal position, whereupon the paint in cup 1 moves downward under the force of gravity, the paint moves to seal 33, and seal 3 and its seal 33 are pressed against vent plate 22 by the force of the gravity of the paint, sealing vent opening 222. At this point, a flat surface (which may be parallel to the bottom 10 of the cup) is given by hand to the now upright cup 1 below the cup 1 and gives the cup 1 a downward speed. As shown in fig. 16, the barrier member 4 in the open state is firstly in contact with the plane, and then the barrier member 4 is forced to rotate until the support portion 11 is also in contact with the plane, at this time, the barrier member 4 just rotates to the closed position, and the support portion 11 is also in contact with the plane to play a limiting role, so that the air vent mechanism is prevented from being damaged by the continuous downward movement of the cup body 1.

At this time, the ventilation means has three seals of the sealing member 3, the inner sealing portion 41 and the outer fixing portion 43.

The support 11 after being placed can contact the plane with the bottom surface 40 of the barrier at the same time, so that the stability of the cup body 1 during placement is improved.

The present invention has been described above by way of example, but the present invention is not limited to the above-mentioned embodiments, and any modification or variation based on the present invention is within the scope of the present invention.

Claims (23)

1. The storage cup comprises a cup body (1), and is characterized in that the cup body (1) is provided with a ventilation mechanism which allows gas to pass into the cup body (1) in the forward direction and does not allow liquid in the cup body (1) to pass in the reverse direction; the venting mechanism comprises a seal (3), the seal (3) opening or closing the inlet valve (2) by a change in position and/or shape.

2. Storage cup according to claim 1, characterized in that the sealing (3) is made of an elastic material.

3. The storage cup as claimed in claim 2, wherein the venting mechanism further comprises a gas inlet valve (2), the gas inlet valve (2) comprising a vent plate (22), the vent plate (22) forming a vent opening (222), the seal (3) moving relative to the vent plate (22) to open or close the vent opening (222).

4. A storage cup according to claim 3, characterized in that the seal (3) comprises a stop portion (31), a fixed connection portion (32) and a sealing portion (33); the ventilation plate (22) is provided with a connecting hole (221), the fixed connecting part (32) penetrates through the connecting hole (221), and the limiting part (31) and the sealing part (33) are respectively positioned on two sides of the ventilation plate (22); the seal (33) moves relative to the vent panel (22) to open or close the vent opening (222).

5. A storage cup according to claim 4, wherein the venting means further comprises a barrier (4), the barrier (4) being adapted to control the on and off of gas entering the storage cup through the venting means in a forward direction.

6. A storage cup according to claim 5, wherein the venting means is arranged below the bottom (10) of the cup body (1), and wherein the barrier (4) has a barrier floor (40) lower than or equal to the lowest point of the cup body (1) when closed, and wherein the barrier (4) has a barrier floor (40) partly or completely lower than the lowest point of the cup body (1) when open.

7. Storage cup according to claim 6, characterised in that the blocking member (4) is rotatably connected relative to the air inlet valve (2), the axis of rotation of the blocking member (4) not being parallel to the direction of movement of the sealing member (3).

8. The storage cup as claimed in claim 7, wherein the air inlet valve (2) further comprises a housing (21), the air vent (222) is communicated with the interior of the housing (21), the barrier (4) further comprises an inner sealing portion (41) which is arranged inside the housing (21) to seal the opening of the housing (21) and/or an outer sealing portion (42) which is arranged outside the housing (21) to seal the opening of the housing (21), and the inner sealing portion (41) and the outer sealing portion (42) are in interference fit or transition fit with the housing (21); the outer sealing part (42) is provided with a first vent hole (421) for gas to pass through, and the first vent hole (421) is communicated with the gas outside the gas inlet valve (2) when the barrier (4) is opened.

9. A storage cup according to claim 8, characterised in that the air inlet valve (2) further comprises an outer housing (23), the outer housing (23) being outside the housing (21); the barrier (4) further comprises an outer fixing portion (43), the outer fixing portion (43) being outside the inner seal portion (41) and the outer seal portion (42); the outer fixing portion (43) is rotatably connected with the outer shell (23), and the outer fixing portion (43) is fixed with the outer shell (23) in an interference fit mode.

10. A storage cup as claimed in claim 2, wherein the resilient material is: TPU, TPE, TPR, TPV, CPE, plastic or rubber.

11. A storage cup according to claim 3, characterised in that the cup body (1) and the aeration panel (22) are formed in one piece.

12. A storage cup according to claim 4, characterized in that the stopper portion (31), the fixed connection portion (32) and the sealing portion (33) are integrally formed.

13. A storage cup according to claim 5 wherein the on and off of gas entering the storage cup through the venting means is controlled by a change in the relative position of the barrier (4) and the vent plate (22).

14. A storage cup according to claim 6, characterized in that a support (11) is formed below the cup bottom (10), and the barrier (4) has a barrier bottom surface (40) which is at the same level as the support bottom surface (111) of the support (11) when the barrier is closed.

15. Storage cup according to claim 7, characterised in that the axis of rotation of the blocking member (4) is perpendicular to the direction of movement of the sealing member (3).

16. The storage cup as claimed in claim 8, wherein the interference of the inner seal (41) is greater than the interference of the outer seal (42), and the height of the inner seal (41) is less than the height of the outer seal (42).

17. A storage cup according to claim 9, characterized in that the outer fixing portion (43) is formed with a second vent (431), the second vent (431) being in communication with the atmosphere outside the intake valve (2) when the shutter (4) is opened.

18. The storage cup as claimed in claim 9, wherein the outer shell (23) is formed with two first hinge portions (232) and the outer fixing portion (43) is formed with two second hinge portions (432), the first hinge portions (232) and the second hinge portions (432) being connected to hinge the outer shell (23) and the outer fixing portion (43).

19. The storage cup as claimed in claim 17, wherein the barrier bottom surface (40) is formed with a depressed pressing portion (401), the pressing portion (401) and the second vent (431) are respectively located on both sides of the rotational axis of the barrier (4), and the distance from the outer fixing portion (43) on the side of the pressing portion (401) to the rotational axis of the barrier (4) is greater than or equal to the distance from the outer fixing portion (43) on the side of the second vent (431) to the rotational axis of the barrier (4).

20. A reservoir cup according to claim 19, characterized in that the outer shell (23) is formed with a pressing groove (231), the pressing groove (231) and the pressing part (401) being on the same side of the axis of rotation of the barrier (4).

21. A storage cup according to claim 9, characterized in that the shell (21), the vent plate (22), the outer shell (23) and the cup bottom (10) are integrally formed and made of an elastic material; the inner sealing part (41), the outer sealing part (42) and the outer fixing part (43) are integrally formed and made of elastic materials.

22. A storage cup as claimed in claim 21, wherein said elastomeric 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, silicone plastic or rubber.

23. A spray gun liquid reservoir using a reservoir cup as claimed in any one of claims 1 to 22 further comprising a lid (5), said lid (5) being removably connected to the cup body (1); the cup cover (5) is provided with a liquid channel (51) for fluid to pass through.

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