CN115716572A - Pressure storage type spray pump, spray device and continuous spray method - Google Patents

Abstract

The invention relates to a pressure storage type spray pump, a spray device and a continuous spray method, wherein the volume of a liquid suction cavity is continuously changed, liquid in a storage container enters the liquid suction cavity, the liquid in the liquid suction cavity is pressed into the liquid storage cavity, the liquid in the liquid storage cavity is gradually increased, a small piston is pushed, a first elastic member is compressed until a gap is formed between the small piston and a liquid outlet hole, the liquid in the liquid storage cavity is sprayed out from the liquid outlet hole at a certain speed, in the process, the volume change of the liquid suction cavity is continued, the liquid in the liquid storage cavity is continuously increased, when the volume of the liquid suction cavity stops changing, the first elastic member acts on the small piston to move the small piston, the liquid in the liquid outlet hole is continuously sprayed out at a certain speed, and continuous spray is formed until a sealing column of the small piston seals the liquid outlet hole, at the moment, the first elastic member is still in a compressed state, and the liquid finally entering the liquid outlet hole from the liquid storage cavity has a certain speed, so that the phenomenon that the tail end atomization effect of the spray is not good is avoided.

Description

Storage pressure spray pump, spray device and continuous spray method

technical field

The invention relates to the field of spray pumps, in particular to a storage pressure spray pump, a spray device and a continuous spray method.

Background technique

Spray pumps are widely used in daily life, such as shampoo, insecticide, and cosmetics. Generally, in order to form a continuous spray, a pressure vessel is required. After filling the liquid in the pressure vessel, the inside of the vessel needs to be pressurized. In this way, a container with a certain strength must be used to withstand the pressure inside the container, which will increase the production cost and be inconvenient during use and carrying, such as not being able to carry it on special places such as airplanes.

Contents of the invention

Based on this, it is necessary to provide a storage pressure spray pump, a spray device and a continuous spray method to solve the problems in the prior art.

A pressure storage spray pump, characterized in that it comprises

The main body is provided with a hollow part, and the two ends of the hollow part of the main body are respectively provided with an upper through hole and a lower through hole,

The cover plate is fixed to the main body, and the upper through hole is located to seal the hollow part of the main body with the outside world. The cover plate is provided with a cover plate through hole communicating with the hollow part of the main body.

The outer one-way valve is located at the position of the lower through hole, the liquid outside the main body can flow to the hollow part of the main body through the outer one-way valve,

The piston abuts against the inner wall of the main body, moves up and down in the hollow part of the main body, divides the hollow part of the main body into an upper chamber and a liquid suction chamber, and the piston is provided with a piston through hole for connecting the upper chamber and the liquid suction chamber,

The inner one-way valve is located at the position of the piston through hole, the liquid in the suction chamber can flow to the upper chamber through the inner one-way valve,

The upper pump rod includes a connecting column and a side. The connecting column is provided with a liquid outlet hole. The connecting column passes through the through hole of the cover plate, and the side moves up and down in the hollow part of the main body.

The small piston is located between the upper pump rod and the piston in the main body. There is a sealing column on the upper side of the small piston, which extends to the liquid outlet hole of the upper pump rod connecting column to seal the liquid outlet hole. A storage tank is formed between the small piston and the upper pump rod. The liquid chamber, the communication channel of the lower piston, the communication channel connects the liquid storage chamber with the lower side of the lower piston,

The first elastic member is located between the small piston and the piston.

In one of the embodiments, when the liquid in the liquid storage chamber is increasing or decreasing, when the sealing column of the small piston and the liquid outlet hole are in a critical state of separation/closing, the first elastic member is compressed.

In one of the embodiments, the pressure storage spray pump further includes a lower pump rod, the upper side of the lower pump rod is fixed to the side of the upper pump rod, the lower side of the lower pump rod is fixed to the piston, and the lower pump rod The middle part of the rod is a hollow structure, and the small piston is located in the hollow structure of the lower pump rod, and moves up and down in the hollow structure of the lower pump rod.

In one of the embodiments, a lower communication hole is provided on the lower side of the lower pump rod, and the lower communication hole is arranged opposite to the outer one-way valve at the position of the piston.

In one of the embodiments, the small piston includes a piston body, the lower side of the piston body is provided with an upper communication hole, the upper communication hole is socketed with the lower communication hole, and the outer side of the upper communication hole is provided with a piston The side wall, the piston side wall is in contact with the inner wall of the main body/the inner wall of the lower pump rod, and the piston body is provided with a communication hole for connecting the upper communication hole with the upper side of the piston body.

In one of the embodiments, the sealing column includes a blocking portion and a connecting portion, the connecting portion is tapered and has an inclined surface on the outside, the blocking portion is connected to the main body of the piston through the connecting portion, and the upper An inclined portion is provided at the joint between the connecting column and the side of the pump rod, and when the connecting portion of the sealing column contacts the inclined portion of the upper pump rod, the sealing column extends into the liquid outlet hole.

In one of the embodiments, the pressure storage spray pump further includes a return elastic member, the return elastic member is located on the outside of the cover plate, and when the upper pump rod moves downward, the return elastic member is compressed/pulled Stretching, after eliminating the downward external force applied to the upper pump rod, under the action of the reset elastic member, the upper pump rod moves upward and returns to the original position,

Or the return elastic member is located in the liquid suction chamber on the lower side of the piston, and the return elastic member is located on the outside of the cover plate. When the upper pump rod moves downward, the return elastic member is compressed to eliminate the pressure applied to the upper pump. After the downward external force on the rod, under the action of the return elastic member, the upper pump rod moves upward and returns to the initial position.

In one of the embodiments, the first elastic member and the reset elastic member are made of metal or non-metal.

In one embodiment, the side of the main body is provided with an exhaust hole, the exhaust hole communicates the inner side of the main body with the outside, and the exhaust hole is located on the upper side of the main body close to the cover plate.

In one of the embodiments, the contact position between the connecting column of the upper pump rod and the through hole of the cover plate is an inclined structure, and the corresponding position of the through hole of the cover plate is provided with the same inclined structure. When the upper pump rod is pressed down and moves A gap is formed between the upper pump rod and the through hole of the cover plate, and when the upper pump rod is not subjected to external force, the upper pump rod and the through hole of the cover plate are abutted by an inclined structure to form a seal.

A spraying device adopts the above-mentioned pressure storage spray pump.

The above-mentioned pressure storage spray pump and spray device are equipped with a liquid suction chamber. During the process of moving the upper pump rod up and down, the liquid in the storage container enters the liquid suction chamber through the outer one-way valve, and the liquid in the liquid suction chamber increases. When the upper pump rod continues to move up and down, the liquid in the suction chamber will enter the liquid storage chamber through the inner one-way valve. With the increase of the liquid in the liquid storage chamber, it will push the small piston to move down, and the first elastic member will be compressed. At the same time, the sealing column of the small piston is gradually removed from the liquid outlet hole. After the sealing column is completely removed and the liquid storage chamber is connected with the liquid outlet hole, the liquid in the liquid storage chamber may be ejected from the liquid outlet hole at a certain speed. After the upper pump rod continues to move up and down, the liquid in the liquid suction chamber will continue to enter the liquid storage chamber, and the liquid in the liquid storage chamber will increase. After the upper pump rod stops moving, the first elastic member needs to recover its deformation, and the small piston moves upward. The liquid in the liquid storage chamber continues to enter the liquid outlet hole at a certain speed until the sealing column of the small piston completely seals the liquid outlet hole. The liquid entering the liquid outlet hole from the liquid storage chamber also has a certain speed, so that during the use of the spray pump, the atomization effect at the end will not be weakened, and it will be sprayed out at a certain speed, thereby forming a good atomization effect.

At the same time, after the small piston sealing post forms a seal with the liquid outlet hole, the liquid storage chamber can be separated from the outside world, preventing the liquid in the liquid storage chamber from contacting the outside world without affecting the quality of the liquid in the liquid storage chamber.

A continuous spray method comprising:

a storage container with liquid in it, and

The liquid suction chamber, the storage container and the liquid suction chamber are separated by an external one-way valve, and the liquid in the storage container enters the liquid suction chamber under pressure, and

The liquid storage chamber is separated from the liquid suction chamber by an inner one-way valve. The liquid in the liquid suction chamber enters the liquid storage chamber under the action of pressure, and the volume of the liquid storage chamber increases. The increase makes the small piston on one side of the liquid storage chamber move to increase the volume of the liquid storage chamber, the small piston is provided with a sealing column, and

The liquid outlet is in communication with the liquid storage chamber and is in a normally closed state under the action of the sealing column of the small piston, and

The first elastic member acts on the small piston. When the volume of the liquid storage chamber increases, the small piston compresses the first elastic member.

Wherein, the liquid in the liquid storage chamber increases, the small piston moves, the first elastic member is compressed, and the liquid in the liquid storage chamber is in a compressed state at this time,

The liquid in the liquid storage chamber continues to increase until there is a gap between the small piston and the liquid outlet hole, and the liquid enters the liquid outlet hole from the gap. At this time, the liquid ejected from the liquid outlet hole has a certain speed.

The liquid in the liquid storage chamber decreases until the sealing column of the small piston closes the liquid outlet hole, thereby closing the liquid outlet hole. At this time, the liquid in the liquid storage chamber is in a compressed state.

In one of the embodiments, the first elastic member is compressed when the sealing rod of the small piston and the liquid outlet hole are in a critical state of separating/closing.

In one of the embodiments, when the liquid is ejected through the liquid outlet hole, the liquid in the storage container can continuously enter the liquid suction chamber, and/or the liquid in the liquid suction chamber can continuously enter the liquid storage chamber.

The above-mentioned continuous spraying method continuously changes the volume of the liquid suction chamber, sucks the liquid in the storage container into the liquid suction chamber, and presses the liquid in the liquid suction chamber into the liquid storage chamber, so that the liquid in the liquid storage chamber will gradually increase, the small piston is pushed, and the first elastic member is compressed until there is a gap between the small piston and the liquid outlet hole, so that the liquid in the liquid storage chamber will be ejected from the liquid outlet hole at a certain speed. During the process, the volume change of the liquid suction chamber continues, the liquid in the liquid storage chamber continues to increase, and when the volume of the liquid suction chamber stops changing, the first elastic member acts on the small piston to make it move. The liquid is continuously ejected at a certain speed to form a continuous spray until the sealing column of the small piston seals the liquid outlet. At this time, the first elastic member is still in a compressed state, so that the final The liquid entering the liquid outlet hole from the liquid storage chamber has a certain speed, so that the phenomenon of poor atomization effect at the spray tail end can be avoided.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the first embodiment of the pressure storage spray pump of the present invention;

Fig. 2 is a schematic diagram of the overall structure of the second embodiment of the pressure storage spray pump of the present invention;

Fig. 3 is a structural schematic diagram of the exploded view of the first embodiment of the pressure storage spray pump of the present invention;

Fig. 4 is a structural schematic diagram of the exploded view of the second embodiment of the pressure storage spray pump of the present invention;

Fig. 5 is a structural schematic diagram of a partial sectional view of the small piston of the pressure storage spray pump of the present invention;

Fig. 6 is a structural schematic diagram of a partial sectional view of the upper pump rod of the pressure storage spray pump of the present invention;

Fig. 7 is a structural schematic diagram of a partial sectional view of the lower pump rod of the pressure storage spray pump of the present invention;

Fig. 8 is a structural schematic diagram of a cross-sectional view of the first embodiment of the pressure storage spray pump of the present invention;

Fig. 9 is a structural schematic diagram of a cross-sectional view of the pump rod being pressed down in the first embodiment of the pressure storage spray pump of the present invention;

Fig. 10 is a schematic cross-sectional view of the first embodiment of the pressure storage spray pump according to the present invention, in which the upper pump rod is pressed down and the liquid is stored in the liquid storage chamber;

Fig. 11 is a cross-sectional structural schematic diagram of the first embodiment of the pressure storage spray pump according to the present invention, where the pump rod is in the initial position and the liquid is stored in the liquid storage chamber;

Fig. 12 is a structural schematic diagram of the explosion diagram when the first elastic part and the reset elastic part of the pressure storage spray pump of the present invention are made of non-metallic materials;

Fig. 13 is a structural schematic diagram of an explosion diagram when the first elastic part and the reset elastic part of the pressure storage spray pump of the present invention are made of non-metallic materials;

Among them, 1, main body; 100, upper through hole; 101, lower through hole; 2, cover plate; 200, cover plate through hole; 3, outer one-way valve; 4, piston; 110, liquid suction cavity; 401, piston Through hole; 5, inner one-way valve; 6, upper pump rod; 600, connecting column; 601, side; 602, liquid outlet; 603, inclined part; 7, small piston; 700, sealing column; 7001, sealing Blocking part; 7002, connecting part; 701, piston main body; 702, upper communication hole; 703, piston side wall; 704, communication hole; 12, liquid storage cavity; 8, first elastic member; 9, lower pump rod; 900 , the lower connecting hole; 10, the reset elastic piece; 11, the exhaust hole.

Detailed ways

In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes of illustration only."

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terminology used herein in the description of the present invention is only for the purpose of describing specific embodiments, and is not intended to limit the present invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in Figures 1 to 11, a storage pressure spray pump, including

The main body 1 is provided with a hollow portion, and the two ends of the hollow portion of the main body 1 are respectively provided with an upper through hole 100 and a lower through hole 101,

The cover plate 2 is fixed to the main body 1, and the upper through hole 100 is located to seal the hollow part of the main body 1 from the outside world. The cover plate 2 is provided with a cover plate through hole 200 communicating with the hollow part of the main body 1,

The outer one-way valve 3 is located at the position of the lower through hole 101, the liquid outside the main body 1 can flow to the hollow part of the main body 1 through the outer one-way valve 3,

The piston 4 abuts against the inner wall of the main body 1, moves up and down in the hollow part of the main body 1, and divides the hollow part of the main body 1 into an upper chamber and a liquid suction chamber 110. The piston 4 is provided with a piston through hole 401 for connecting the upper chamber and the liquid suction chamber 110. The suction chamber 110 communicates,

The inner one-way valve 5 is located at the position of the piston through hole 401, the liquid in the suction chamber 110 can flow to the upper chamber through the inner one-way valve 5,

The upper pump rod 6 includes a communication column 600 and a side. The communication column 600 is provided with a liquid outlet hole 602. The communication column 600 passes through the through hole 200 of the cover plate, and the side moves up and down in the hollow part of the main body 1.

The small piston 7 is located between the upper pump rod 6 and the piston 4 in the main body 1, and the upper side of the small piston 7 is provided with a sealing column 700, which extends to the liquid outlet hole 602 of the upper pump rod 6 communicating with the column 600 to seal the liquid outlet hole 602, A liquid storage chamber 12 is formed between the small piston 7 and the upper pump rod 6, and the lower piston 4 communicates with a channel, and the communication channel communicates the liquid storage chamber 12 with the lower side of the lower piston 4,

The first elastic member 8 is located between the small piston 7 and the piston 4 .

By setting the liquid suction chamber 110, when the upper pump rod 6 moves up and down, the liquid in the storage container enters the liquid suction chamber 110 through the outer one-way valve 3, and the liquid in the liquid suction chamber 110 increases, and the upper pump rod 6 continues to When moving up and down, the liquid in the liquid suction chamber 110 will enter the liquid storage chamber 12 through the inner one-way valve 5, and as the liquid in the liquid storage chamber 12 increases, it will push the small piston 7 to move downward, and the first elastic member 8 will be moved At the same time, the sealing column 700 of the small piston 7 is gradually moved out from the liquid outlet hole 602. After the sealing column 700 is completely removed and the liquid storage chamber 12 is connected with the liquid outlet hole 602, the liquid in the liquid storage chamber 12 may be released at a certain rate. The speed is ejected from the liquid outlet hole 602. After the upper pump rod 6 continues to move up and down, the liquid in the liquid suction chamber 110 will continue to enter the liquid storage chamber 12, the liquid in the liquid storage chamber 12 will increase, and the upper pump rod 6 will stop moving. Afterwards, the first elastic member 8 needs to restore its deformation, the small piston 7 moves upward, and the liquid in the liquid storage chamber 12 continues to enter the liquid outlet hole 602 at a certain speed until the sealing column 700 of the small piston 7 completely covers the liquid outlet hole 602. At this time, the first elastic member 8 is still in a compressed state, that is to say, the liquid that finally enters the liquid outlet hole 602 from the liquid storage chamber 12 also has a certain speed, so that during the use of the spray pump, the end The atomization effect at the end will not be weakened, and it will be sprayed at a certain speed to form a good atomization effect.

At the same time, after the small piston 7 sealing column 700 forms a seal with the liquid outlet hole 602, the liquid storage chamber 12 can be separated from the outside world, so as to prevent the liquid in the liquid storage chamber 12 from contacting the outside world and will not affect the liquid in the liquid storage chamber 12. the quality of the liquid.

In the initial use, the upper pump rod 6 moves downward, the piston 4 moves downward, then the upper pump rod 6 moves upward, and the piston 4 moves upward. At this time, the outer one-way valve is opened, and the liquid in the storage container passes through the outer one-way valve. The valve enters the liquid suction chamber 110, the upper pump rod 6 moves downward, the piston 4 moves downward, and the outer one-way valve is closed. Since there is a certain amount of liquid in the liquid suction chamber 110, the inner one-way valve is opened at this time, and the suction The liquid in the liquid chamber 110 enters the liquid storage chamber 12, the upper pump rod 6 moves upward, the piston 4 moves upward, the outer one-way valve opens, the inner one-way valve closes, and the liquid in the storage container enters the liquid suction chamber through the outer one-way valve 110, the upper pump rod 6 moves downward, the piston 4 moves downward, the outer one-way valve is closed, the inner one-way valve is opened, and the liquid in the suction chamber 110 enters the liquid storage chamber 12, so that the upper pump rod 6 up and down During the moving process, the piston 4 also moves up and down at the same time, and the liquid in the storage container enters the liquid storage chamber 12 through the outer one-way valve, the liquid suction chamber 110 and the inner one-way valve. And there is liquid remaining in the liquid storage chamber 12, so when it is used again, it can quickly form a spray.

In the process of use, in order to ensure that the liquid ejected from the liquid outlet hole 602 has a certain speed, the liquid in the liquid storage chamber 12 needs to be in a compressed state at this time, so that the liquid in the liquid storage chamber 12 increases or decreases. During the process, when the sealing column 700 of the small piston 7 and the liquid outlet hole 602 are in a critical state of separation/closing, the first elastic member 8 is compressed. That is to say, whether the liquid in the liquid storage chamber 12 increases or decreases, the first elastic member 8 is in a compressed state, so that even if the liquid is sprayed out in the liquid outlet hole 602, the liquid in the liquid storage chamber 12 gradually decreases. During the process, since the first elastic member 8 is always in a compressed state, that is, the first elastic member 8 will always have a force acting on the small piston 7, so that the small piston 7 moves toward the cover plate 2, and the liquid in the liquid storage chamber 12 Always in a compressed state, when the liquid outlet hole 602 is disconnected from the liquid storage chamber 12 (the small piston 7 sealing column 700 seals the liquid outlet hole 602), the liquid that finally enters the liquid outlet hole 602 has a certain speed , so that it can be guaranteed that when the pump is used for spraying, the liquid sprayed from the end also has a certain speed, so that the atomization effect will be better.

In order to avoid direct contact between the first elastic member 8 and the liquid, at this time, the pressure storage spray pump also includes a lower pump rod 9, the upper side of the lower pump rod 9 is fixed to the side of the upper pump rod 6, and the lower pump rod 9 is fixed to the side of the upper pump rod 6. The lower side of the pump rod 9 is fixed with the piston 4, the middle part of the lower pump rod 9 is a hollow structure, the small piston 7 is located in the hollow structure of the lower pump rod 9, and moves up and down in the hollow structure of the lower pump rod 9, further, The lower side of the lower pump rod 9 is provided with a lower communication hole 900 , and the lower communication hole 900 is arranged opposite to the outer one-way valve 3 at the position of the piston 4 .

At the same time, the small piston 7 includes a piston body 7011, the lower side of the piston body 7011 is provided with an upper communication hole 702, the upper communication hole 702 is socketed with the lower communication hole 900, and the outer side of the upper communication hole 702 is provided with There is a piston side wall 703, the piston side wall 703 abuts against the inner wall of the main body 1/the inner wall of the lower pump rod 9, and the piston main body 7011 is provided with a communication hole 704 for communicating the upper communication hole 702 with the upper side of the piston main body 7011 .

That is to say, at this time, by setting the lower pump rod 9, the hollow part (upper chamber part) in the main body 1 can be divided again to form the accommodation space of the first elastic member 8 and the flow space of the liquid. The flow at this time The space is realized by the upper communication hole 702 and the lower communication hole 900. The upper communication hole 702 and the lower communication hole 900 are nested with each other, which can prevent the liquid in the flow space from overflowing to the outside of the flow space, thus ensuring that the liquid will not interfere with the first elastic When the upper pump rod 6 moves up and down, the lower pump rod 9 moves up and down synchronously with the upper pump rod 6. When the liquid in the liquid storage chamber 12 increases, the small piston 7 moves downward relative to the lower pump rod 9 Movement, that is, the upper communication hole 702 moves downward relative to the lower communication hole 900. Through the setting of the upper communication hole 702 and the lower communication hole 900, it can be used to limit the up and down movement of the small piston 7. At the same time, the upper communication hole 702 and the lower communicating hole 900 are only partially overlapped, so that the position space for the upper communicating hole 702 to move downward can be reserved.

At the same time, the upper communication hole 702 communicates with the upper side of the piston body 7011 through the communication hole 704, that is, the upper communication hole 702 communicates with the liquid storage chamber 12 through the communication hole 704, and the liquid in the liquid suction chamber 110 communicates with the inner one-way valve 5 and the lower. The hole 900, the upper communication hole 702, and the communication hole 704 communicate with the liquid storage chamber 12. When the inner one-way valve 5 is opened, the liquid in the liquid suction chamber 110 can pass through the inner one-way valve 5, the lower communication hole 900, the upper The communication hole 702 and the communication hole 704 flow into the liquid storage chamber 12 .

At this time, there is a gap between the piston side wall 703 in the small piston 7 and the outside of the upper communication hole 702, so that the first elastic member 8 can be clamped in the gap, and when the small piston 7 moves up and down, the first elastic member 8. No positional offset will occur, and the stability during the movement of the small piston 7 will not be affected.

The small piston 7 is mainly used to form the liquid storage chamber 12. At the same time, it is necessary to control the opening and closing of the liquid outlet hole 602. The opening and closing of the liquid outlet hole 602 is controlled by the position of the small piston 7. In the small piston 7 The seal moves to the position of the liquid outlet hole 602. When the liquid outlet hole 602 is blocked, the liquid outlet hole 602 can be sealed, thereby closing the liquid outlet hole 602. When the small piston 7 sealing column 700 moves to separate from the liquid outlet hole 602, There is a gap between the sealing column 700 of the small piston 7 and the liquid outlet hole 602, the liquid outlet hole 602 communicates with the liquid storage chamber 12, and the liquid outlet hole 602 is opened. At this time, the sealing column 700 includes a plugging part 7001, a connecting part 7002, the connecting portion 7002 is tapered, with an inclined surface on the outside, the blocking portion 7001 is connected to the piston body 7011 through the connecting portion 7002, and the connecting column 600 of the upper pump rod 6 and the side connection are provided There is an inclined portion 603 , and when the connecting portion 7002 of the sealing column 700 is in contact with the inclined portion 603 of the upper pump rod 6 , the sealing column 700 extends into the liquid outlet hole 602 . At this time, the outer diameter of the plugging part 7001 is adapted to the inner diameter of the liquid outlet hole 602. When the plugging part 7001 moves into the liquid outlet hole 602, the liquid outlet hole 602 can be blocked, and the liquid storage chamber 12 and the The liquid outlet holes 602 are separated. In order to improve the separation effect between the liquid storage chamber 12 and the liquid outlet holes 602, at this time, a connecting portion 7002 is provided on the lower side of the blocking portion 7001, and the connecting portion 7002 is conical. The upper pump rod 6 is provided with an opposite inclined part 603, so that when the sealing column 700 (blocking part 7001) of the small piston 7 is sealed with the outlet hole 602 of the upper pump rod 6, the connecting part 7002 of the sealing part is in contact with the The position of the inclined part 603 of the upper pump rod 6 can increase the contact area and achieve better sealing. When the liquid outlet hole 602 is sealed by the sealing column 700, the sealing effect can be improved. When the use (stop spraying) is stopped, the static The state of the seal is to separate the liquid storage chamber 12 from the liquid outlet hole 602, that is, to separate the liquid storage chamber 12 from the outside world, to prevent the liquid in the liquid storage chamber 12 from communicating with the outside world, and to contaminate the liquid in the liquid storage chamber 12. The problem.

During use, the upper pump rod 6 needs to move up and down. In this embodiment, as shown in Figure 1 and Figure 3, it is the first embodiment of the pressure storage spray pump, and the pressure storage spray pump also includes The return elastic member 10 is located on the outside of the cover plate 2. When the upper pump rod 6 moves downward, the return elastic member 10 is compressed/stretched to eliminate the pressure exerted on the upper pump rod 6. After the external force, under the action of the reset elastic member 10, the upper pump rod 6 moves upwards and returns to the initial position,

Or as shown in Figure 2 and Figure 4, it is the second embodiment of the pressure storage spray pump. The reset elastic member 10 is located in the liquid suction chamber 110 on the lower side of the piston 4, and the reset elastic member 10 is located on the cover plate 2. On the outside, when the upper pump rod 6 moves downward, the reset elastic member 10 is compressed, and after eliminating the downward external force applied to the upper pump rod 6, under the action of the reset elastic member 10, the upper pump rod 6 Move up and return to the original position. That is, the reset elastic member 10 can be arranged in different positions according to actual needs, and it is only necessary to ensure that after the upper pump rod 6 moves down, the upper pump rod 6 will return to its original position under the action of the reset elastic member 10 .

Meanwhile, the first elastic member 8 and the reset elastic member 10 are made of metal or non-metal. As shown in Figure 12 and Figure 13, non-metallic materials are used. For the first elastic member 8 and the reset elastic member 10, as long as they can store a certain elastic potential energy, after extrusion or stretching deformation, they will Return to original shape, like this, realize exactly the reset of small piston 7 and last pump rod 6 positions.

Of course, the specific shapes of the first elastic member and the reset elastic member are not limited to the shapes recorded in the drawings, and other structures/shapes that can provide elastic force and recover from deformation after compression are all available.

In the process of the upper pump rod 6 moving up and down, in order to further improve the sealing effect, the side of the main body 1 is provided with a vent hole 11, and the vent hole 11 communicates the inside of the main body 1 with the outside world. 11 is located on the upper side of the main body 1 close to the cover plate 2 . The contact position between the connecting column 600 of the upper pump rod 6 and the through hole 200 of the cover plate is an inclined structure, and the corresponding position of the through hole 200 of the cover plate is provided with the same inclined structure. When the upper pump rod 6 is pressed and moved downward, the A gap is formed between the upper pump rod 6 and the through hole 200 of the cover plate, and when the upper pump rod 6 is not subjected to external force, the upper pump rod 6 and the through hole 200 of the cover plate contact to form a seal through an inclined structure. At this time, the outer side of the upper pump rod 6 is in contact with the inclined structure provided between the through hole 200 of the cover plate to achieve sealing. A gap is formed between the holes 200, which are communicated with the exhaust holes 11 to realize air return and ensure the normal pressing and up and down movement of the lower pump rod 9.

At this time, the central axes of all parts are set on the same vertical axis, and during use, the moving parts also move up and down along the vertical axis, so that the volume of the accumulator spray pump takes up less Small, only need to set the press head on the upper side of the upper pump body, it can be used for normal use, the overall structure is simple, and because the axes of each component are on the same axis, fully automated assembly can be realized during the production process , greatly improving production efficiency.

A spraying device adopts the above-mentioned pressure storage spray pump. By adopting the above-mentioned spray pump, the spray device can realize continuous spraying without pressurizing the storage container, thus eliminating the need to use metal tanks and reducing production costs.

A continuous spray method comprising:

a storage container with liquid in it, and

The liquid suction chamber 110, the storage container and the liquid suction chamber 110 are separated by the outer one-way valve 3, the liquid in the storage container enters the liquid suction chamber 110 under pressure, and

The liquid storage chamber 12 is separated from the liquid suction chamber 110 by the inner one-way valve 5. The liquid in the liquid suction chamber 110 enters the liquid storage chamber 12 under the action of pressure, and the volume of the liquid storage chamber 12 increases. The increase of liquid entering the liquid storage chamber 12 causes the small piston 7 on one side of the liquid storage chamber 12 to move to increase the volume of the liquid storage chamber 12. The small piston 7 is provided with a sealing column 700, and

The liquid outlet hole 602 communicates with the liquid storage chamber 12 and is in a normally closed state under the action of the sealing column 700 of the small piston 7, and

The first elastic member 8 acts on the small piston 7. When the volume of the liquid storage chamber 12 increases, the small piston 7 compresses the first elastic member 8,

Wherein, the liquid in the liquid storage chamber 12 increases, the small piston 7 moves, and the first elastic member 8 is compressed. At this time, the liquid in the liquid storage chamber 12 is in a compressed state.

The liquid in the liquid storage chamber 12 continues to increase until there is a gap between the small piston 7 and the liquid outlet hole 602, and the liquid enters the liquid outlet hole 602 from the gap. At this time, the liquid ejected from the liquid outlet hole 602 has a certain speed.

The liquid in the liquid storage chamber 12 decreases until the sealing column 700 of the small piston 7 closes with the liquid outlet hole 602, thereby closing the liquid outlet hole 602. At this time, the liquid in the liquid storage chamber 12 is in a compressed state.

By constantly changing the volume of the liquid suction chamber 110, the liquid in the storage container is sucked into the liquid suction chamber 110, and the liquid in the liquid suction chamber 110 is pressed into the liquid storage chamber 12, so that the liquid in the liquid storage chamber 12 will gradually increase, the small piston 7 is pushed, and the first elastic member 8 is compressed until there is a gap between the small piston 7 and the liquid outlet hole 602. In this process, the volume change of the liquid suction chamber 110 is still continuing, the liquid in the liquid storage chamber 12 continues to increase, and when the volume of the liquid suction chamber 110 stops changing, the first elastic member 8 acts on the small piston 7, so that It moves, and in this way, there will still be liquid in the liquid outlet hole 602 that will continue to spray out at a certain speed, thereby forming a continuous spray until the sealing column 700 of the small piston 7 blocks the liquid outlet hole 602. At this time, the first An elastic member 8 is still in a compressed state, so that the liquid that finally enters the liquid outlet hole 602 from the liquid storage chamber 12 can be guaranteed to have a certain speed, thereby avoiding the phenomenon that the atomization effect of the spray tail is not good.

At this time, in order to ensure a better atomization effect at the spray tail end, when the sealing column 700 of the small piston 7 and the liquid outlet hole 602 are in a critical state of separation/closing, the first elastic member 8 is compressed. When in the close state (close position), the first elastic member 8 is also in a compressed state, so that it can ensure that the liquid that finally enters the liquid outlet hole 602 from the liquid storage chamber 12 has a certain speed, so that the spray tail can be avoided. Poor atomization effect. Specifically, the length of the sealing column 700 of the small piston 7/the initial compressed amount of the first elastic member 8 can be set according to needs, so as to adjust the speed of the liquid ejected from the liquid outlet hole 602 in the approaching state (adjacent position).

In order to prolong the continuous spraying time, when the liquid is sprayed out through the liquid outlet 602 , the liquid in the storage container can continuously enter the liquid suction chamber 110 , and/or the liquid in the liquid suction chamber 110 can continuously enter the liquid storage chamber 12 . That is, after the spraying occurs at the spray port, continue to change the volume of the liquid suction chamber 110, more liquid in the storage container enters the liquid suction chamber 110, and more liquid in the liquid suction chamber 110 enters the liquid storage chamber 12, even if the liquid storage chamber 12 Liquid is ejected through the liquid outlet hole 602. Since the liquid in the liquid suction chamber 110 enters the liquid storage chamber 12 at a faster speed, the liquid in the liquid storage chamber 12 will continue to increase, so that after the subsequent stop changing the volume of the liquid suction chamber 110 , the liquid in the liquid storage chamber 12 will continue to be sprayed out until the liquid storage chamber 12 is separated from the liquid outlet hole 602 .

For the first elastic member 8 involved in the above method, it acts on the small piston 7. When the volume of the liquid storage chamber 12 increases, the small piston 7 compresses the first elastic member 8. It can also be that when the volume of the liquid storage chamber 12 increases, the small The piston 7 stretches the first elastic member 8, that is, the first elastic member 8 is stretched. At this time, the direction in which the first elastic member 8 stretches the small piston 7 is the direction in which the volume of the liquid storage chamber 12 is reduced, that is, no matter how it is set When the volume of the first elastic member 8 and the liquid storage chamber 12 increases, the elastic potential energy on the first elastic member 8 increases, and the constant need of the first elastic member 8 causes the volume of the liquid storage chamber 12 to decrease and change.

The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, should be considered as within the scope of this specification.

The above-mentioned embodiments only express several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but should not be construed as limiting the patent scope of the invention. It should be pointed out that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for the present invention should be based on the appended claims.

Claims (14)

1. A pressure storage type spray pump is characterized by comprising

A main body provided with a hollow part, wherein both ends of the hollow part of the main body are respectively provided with an upper through hole and a lower through hole,

a cover plate fixed with the main body, wherein the upper through hole is positioned to seal the hollow part of the main body with the outside, the cover plate is provided with a cover plate through hole communicated with the hollow part of the main body,

the outer one-way valve is positioned at the position of the lower through hole, the liquid outside the main body can flow to the hollow part of the main body through the outer one-way valve,

a piston which is abutted against the inner wall of the main body and moves up and down in the hollow part of the main body, the hollow part of the main body is divided into an upper chamber and a liquid suction cavity, the piston is provided with a piston through hole which is used for communicating the upper chamber with the liquid suction cavity,

the inner one-way valve is positioned at the position of the through hole of the piston, the liquid in the liquid suction cavity can flow to the upper cavity through the inner one-way valve,

the upper pump rod comprises a communication column and a side edge, the communication column is provided with a liquid outlet, the communication column penetrates through the through hole of the cover plate, the side edge moves up and down in the hollow part of the main body,

a small piston which is arranged between the upper pump rod and the piston in the main body, a sealing column is arranged on the upper side of the small piston, the sealing column extends to the liquid outlet hole of the upper pump rod communicating column to seal the liquid outlet hole, a liquid storage cavity is formed between the small piston and the upper pump rod, the lower piston is communicated with a channel, the communicating channel communicates the liquid storage cavity with the lower side of the lower piston,

the first elastic piece is positioned between the small piston and the piston.

2. The pressure-storing spray pump of claim 1, wherein the first resilient member is compressed when the small piston sealing post is in a critical separation/closure state with respect to the liquid outlet during the increase or decrease of the liquid in the liquid storage chamber.

3. The pressure storage type spray pump of claim 2, further comprising a lower pump rod, wherein the upper side of the lower pump rod is fixed to the side of the upper pump rod, the lower side of the lower pump rod is fixed to the piston, the middle of the lower pump rod is of a hollow structure, and the small piston is located in the hollow structure of the lower pump rod and moves up and down in the hollow structure of the lower pump rod.

4. A pressure accumulating type spray pump according to claim 3, wherein a lower communication hole is provided at a lower side of the lower pump rod, and the lower communication hole is disposed opposite to the outer check valve at the position of the piston.

5. The pressure storage type spray pump according to claim 4, wherein the small piston comprises a piston body, an upper communication hole is formed in the lower side of the piston body, the upper communication hole is sleeved with a lower communication hole, a piston side wall is arranged on the outer side of the upper communication hole, the piston side wall abuts against a body inner wall/a lower pump rod inner wall, and the piston body is provided with a communication hole for communicating the upper communication hole with the upper side of the piston body.

6. The pressure storage type spray pump of claim 5, wherein the sealing post comprises a plugging portion and a connecting portion, the connecting portion is conical, an inclined surface is arranged on the outer side of the connecting portion, the plugging portion is connected with the piston main body through the connecting portion, an inclined portion is arranged at the connecting position of the connecting post and the side edge of the upper pump rod, and when the connecting portion of the sealing post contacts with the inclined portion of the upper pump rod, the sealing post extends into the liquid outlet.

7. The pressure-storing type atomizing pump according to claim 6, further comprising a restoring elastic member, the restoring elastic member being located at an outer side of the cover plate, the restoring elastic member being compressed/stretched when the upper pump rod moves downward, and the upper pump rod moves upward to be restored to an original position by the restoring elastic member after the downward external force applied to the upper pump rod is removed;

or the return elastic part is positioned in the liquid suction cavity on the lower side of the piston, the return elastic part is positioned on the outer side of the cover plate, when the upper pump rod moves downwards, the return elastic part is compressed, after the downward external force applied to the upper pump rod is eliminated, the upper pump rod moves upwards under the action of the return elastic part, and the upper pump rod returns to the initial position.

8. The pressure-storing atomizing pump of claim 7, wherein said first elastic member and said elastic return member are made of metal or nonmetal.

9. The pressure storage type spray pump of claim 1, wherein the side of the main body is provided with an air vent which communicates the inside of the main body with the outside, and the air vent is located at the upper side of the main body close to the cover plate.

10. The pressure storage type spray pump of claim 9, wherein the contact position of the upper pump rod communication column and the cover plate through hole is an inclined structure, the same inclined structure is arranged at the corresponding position of the cover plate through hole, when the upper pump rod is pressed downwards, a gap is formed between the upper pump rod and the cover plate through hole, and when the upper pump rod is not acted by external force, the upper pump rod and the cover plate through hole are abutted by the inclined structure to form a seal.

11. A spray device using the pressure storage type spray pump according to any one of claims 1 to 10.

12. A continuous spray method comprising:

a storage container having a liquid therein, an

A liquid suction chamber, the storage container being separated from the liquid suction chamber by an external one-way valve, liquid in the storage container entering the liquid suction chamber under pressure, an

The stock solution chamber separates through interior check valve between with the imbibition chamber, and the liquid in the imbibition chamber gets into the stock solution chamber under the effect of pressure, and stock solution chamber volume increases, and wherein, the increase through getting into stock solution intracavity liquid makes the little piston of stock solution chamber one side remove and increases stock solution chamber volume, little piston is equipped with sealed post to and

a liquid outlet hole communicated with the liquid storage cavity and kept in a normally closed state under the action of a sealing column of the small piston, an

The first elastic part acts on the small piston, when the volume of the liquid storage cavity is increased, the small piston compresses the first elastic part,

wherein, the liquid in the liquid storage cavity is increased, the small piston moves, the first elastic piece is compressed, and at the moment, the liquid in the liquid storage cavity is in a compressed state,

the liquid in the liquid storage cavity continues to increase until a gap is formed between the small piston and the liquid outlet hole, the liquid enters the liquid outlet hole from the gap, and the liquid sprayed from the liquid outlet hole has a certain speed,

liquid in the liquid storage cavity is reduced until the sealing column of the small piston is closed with the liquid outlet hole, so that the liquid outlet hole is closed, and the liquid in the liquid storage cavity is in a compressed state at the moment.

13. The continuous spray method of claim 12, wherein the first resilient member is compressed when the small piston sealing post is in a separation/closure threshold with the exit orifice.

14. The continuous spray method of claim 12, wherein the liquid in the reservoir is continuously introduced into the suction chamber and/or the liquid in the suction chamber is continuously introduced into the reservoir as the liquid is discharged through the outlet.

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