Atomizing pump and atomizing bottle in non-one-way working state

Abstract

The invention discloses an atomizing pump in a non-one-way working state and an atomizing bottle using the atomizing pump. The atomizing pump comprises a split piston, a sealing cavity, a reset piece I and a reset piece II. A limiting part is arranged on the inner wall of the sealing cavity and used for limiting the split pistons, the split pistons are separated in the compression stroke, and the sealing cavity communicates with the pumping channel; a gas-liquid groove is formed in the inner wall of the sealing cavity, in the expansion stroke, the split piston passes through the gas-liquid groove, so that the sealing cavity is communicated with the container through the gas-liquid groove, the sealing cavity is communicated with a gas-liquid channel, and the gas-liquid channel is used for sucking liquid or supplementing gas; a liquid suction channel is arranged at one end, far away from the pumping channel, of the sealing cavity; a steel ball I and a steel ball II are arranged on the sealing cavity and the liquid suction channel in a matched mode, are arranged at the communication position of the sealing cavity and the oil suction channel and are provided with hole channels used for abutting sealing in a matched mode. And the spray pump sprays forwards and reversely.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of pump spray, and particularly relates to a non-unidirectional working state spray pump and a spray bottle. BACKGROUND

[0002] The principle of the press pumping of the traditional spray pump is as follows: after initial pressing, a closed cavity is compressed to form a positive pressure cavity; at the end of the stroke, the exhaust passage of the closed cavity is triggered to open to complete exhaust; after reset, the closed cavity expands to form a negative pressure cavity, the one-way passage connected to the bottle body is opened to complete air intake, and the cycle is executed; in the compression to form the positive pressure cavity, exhaust continues, and the cycle is executed to the expansion to form the negative pressure cavity to suck liquid; since the liquid is incompressible, the liquid compression rigidity is used to open another liquid discharge passage to form spray, so that the cycle of press spraying is formed.

[0003] The one-way valve between the closed cavity and the bottle body generally adopts a gravity type ball type one-way valve to form a one-way passage by gravity; therefore, in the case of reverse spraying or non-normal spraying, the one-way valve fails to form the closed cavity to complete the positive pressure cavity and the negative pressure cavity.

[0004] Moreover, due to the flowability of the liquid, the liquid suction inlet cannot suck liquid when the bottle body is inverted, which also causes the failure of spraying.

[0005] Therefore, when the existing spray pump is inverted, the liquid below the suction pipe position causes the failure of liquid spraying. SUMMARY

[0006] The present application aims to provide a non-unidirectional working state spray pump, which can be used for normal spraying and reverse spraying, and is used for spraying medicine to the effective part between the nasal cavity and the throat, and can be used when the patient lies down to rest.

[0007] The present application provides a non-unidirectional working state spray pump, which comprises a split piston, a sealed cavity, a reset member I, and a reset member II, the reset member II is used for resetting the split piston, the reset member I is used for separating the split piston, the sealed cavity forms a positive pressure in the compression stroke and forms a negative pressure in the reset stroke,

[0008] A limiting part is arranged on the inner wall of the sealed cavity and is used for limiting the split piston; in the compression stroke, the split piston is separated, and the sealed cavity is connected to the pumping passage;

[0009] A gas-liquid groove is arranged on the inner wall of the sealed cavity; in the expansion stroke, the split piston passes through the gas-liquid groove, the sealed cavity is connected to the container through the gas-liquid groove, the sealed cavity is connected to the gas-liquid passage, and the gas-liquid passage is used for liquid suction or air supplement;

[0010] A liquid suction passage is arranged at the end of the sealed cavity away from the pumping passage;

[0011] Steel ball I, steel ball II are arranged at the communication position of the sealed cavity and the oil suction channel, and a hole for abutting sealing is arranged in cooperation;

[0012] Steel ball I is close to or far from the abutting position by the reset member II, forming at least two working conditions:

[0013] When the steel ball I is free to move away from the position of the oil suction channel, the oil suction channel and the sealed cavity are bidirectional communication;

[0014] When the steel ball I is free to move or is abutted by the reset member close to the position of the oil suction channel, a one-way valve is formed, so that the oil suction channel is unidirectional communication with the sealed cavity;

[0015] Steel ball II and the oil suction channel cooperate to form at least two working conditions:

[0016] When the steel ball II is away from the position of the sealed cavity, a one-way valve is formed, so that the oil suction channel is unidirectional communication with the sealed cavity;

[0017] When the steel ball II is close to the position of the sealed cavity, a one-way valve is formed, so that the sealed cavity is unidirectional communication with the oil suction channel;

[0018] In order to solve the problem that the traditional spray pump cannot be used in reverse, the structure of non-unidirectional working state is used, the split piston, the sealed cavity and the double steel ball structure are arranged, the closed chamber for liquid suction and spray can be completed in forward and reverse spraying, the defects of the gravity type one-way valve in non-forward state are overcome, and the technical effect of stable spraying in multiple postures (forward spraying / reverse spraying) is achieved.

[0019] The technical scheme provided by the application also has the following technical features:

[0020] Preferably, in an embodiment of the application, the abutting sealing of the split piston and the sealed cavity includes two working conditions:

[0021] During the compression stroke, the fluid in the sealed cavity cannot flow through the abutting position to the outside;

[0022] During the expansion stroke, when the steel ball I and the steel ball II make the sealed cavity and the oil suction channel not communicate, the negative pressure in the sealed cavity sucks the external fluid through the abutting position.

[0023] Preferably, in an embodiment of the application, the split piston includes a secondary piston and a piston; the sealed cavity is formed by a flange and a body, and the body is arranged in cooperation with the secondary body for connecting or forming part of the oil suction channel.

[0024] Preferably, in an embodiment of the application, the flange is arranged in cooperation with the body, and the flange and the body form the sealed cavity.

[0025] Preferably, in an embodiment of the present application, one end of the auxiliary race is arranged in the main column, the main column is in contact with the auxiliary race through the spring I, the auxiliary race is in contact with the piston, the main column drives the auxiliary race and the piston to move through the spring I, a compression stroke is formed, and the compression end is limited, the main column overcomes the elastic force of the spring I, is in contact with the auxiliary race to make it move, and the auxiliary race and the piston are separated.

[0026] Preferably, in an embodiment of the present application, a moving pair is formed between the main column and the leading piece, and the contact position is not sealed for air supplement.

[0027] Preferably, in an embodiment of the present application, a seal is formed at the lower end of the piston and the auxiliary race.

[0028] Preferably, in an embodiment of the present application, the piston and the inner wall of the body are in contact to form a seal, and the gas-liquid groove of the inner wall of the body is in communication with the outside and the sealed cavity respectively according to the position of the piston.

[0029] Preferably, in an embodiment of the present application, the upper and lower ends of the piston are provided with outer skirts for contact with the body to form a seal.

[0030] When spraying, the outer skirt at the end away from the sealed cavity of the piston moves below the gas-liquid groove when the piston is at the lower limit position of compression, so that the gas-liquid groove is in communication with the inside of the container to form a gas-liquid channel for air supplement.

[0031] When spraying, the outer skirt at the end away from the sealed cavity of the piston moves below the gas-liquid groove when the piston is at the lower limit position of compression, so that the gas-liquid groove is in communication with the inside of the container to form a gas-liquid channel for air supplement.

[0032] Preferably, in an embodiment of the present application, a spray bottle comprises a container, the container is provided with a non-unidirectional working state spray pump, and a seal is arranged on the inlet side of the container for liquid suction and air supplement by the non-unidirectional working state spray pump.

[0033] Additional aspects and advantages of the application will be made apparent from the following description.

[0034] The reverse spraying nasal spray pump of the present application can realize the function of spraying liquid medicine in both forward and reverse directions, so that the patient can realize accurate nasal administration regardless of the state, solve the embarrassing situation of traditional forward spraying and reverse use failure, spraying failure and dose not reached, and break the limitation of traditional pump always spraying forward.

[0035] The traditional spray pump relies on a gravity type one-way valve to control the liquid suction direction, and the structure is only suitable for the upright state of the bottle body, and cannot realize stable spraying in the inverted or arbitrary angle state.

[0036] The application can be used at corresponding angles by adjusting the arrangement of the steel ball and the liquid suction channel, and the arrangement can meet the liquid suction requirement relative to the gravity, the liquid flow direction, and the use angle of the bottle body;

[0037] The prior art cannot be used upside down, resulting in failure of spraying when pressed and inability to use; the application proposes a non-unidirectional working state spray pump, which introduces a split piston structure, a double-spring driving mechanism, a double-steel-ball valve control structure, and a gas-liquid groove channel switching structure, and through the cooperation of the above structures, positive pressure exhaust and negative pressure liquid suction circulation are established in the compression and expansion strokes respectively, and the gas supplement and liquid suction channels are automatically switched according to the pump body posture, effective work in the positive spraying and reverse spraying states is realized; the scheme overcomes the dependence of the traditional spray pump on a single posture and the fixedness of the liquid suction path, achieves the technical effects of non-single posture spraying, continuous and stable mist exhaust, and precise control of the dose, thereby improving the applicability, safety, and user friendliness of the spray product, and having wide application prospects in the fields of medical treatment, daily chemicals, and the like. BRIEF DESCRIPTION OF DRAWINGS

[0038] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

[0039] Figure 1 It is a perspective view of a non-unidirectional working state spray pump of the present application;

[0040] Figure 2 It is a front view of a non-unidirectional working state spray pump of the present application;

[0041] Figure 3 It is an A-A sectional view of Figure 2

[0042] Figure 4 It is an initial state diagram of positive spraying of a non-unidirectional working state spray pump of the present application;

[0043] Figure 5 It is a positive pressure exhaust or liquid spraying schematic diagram of positive spraying pressing of a non-unidirectional working state spray pump of the present application;

[0044] Figure 6 It is a negative pressure suction schematic diagram of positive spraying reset of a non-unidirectional working state spray pump of the present application;

[0045] Figure 7 It is a state diagram after positive spraying cycle pressing reset of a non-unidirectional working state spray pump of the present application;

[0046] Figure 8 It is an initial state diagram of reverse spraying of a non-unidirectional working state spray pump of the present application; ​

[0047] Figure 9 A reverse injection pressurized exhaust or liquid injection schematic diagram of a non-unidirectional working state spray pump of the present application;

[0048] Figure 10 A reverse injection reset negative pressure suction schematic diagram of a non-unidirectional working state spray pump of the present application;

[0049] Figure 11 A reverse injection cycle press reset state diagram of a non-unidirectional working state spray pump of the present application;

[0050] Elements in the figure:

[0051] 1, main column

[0052] 2, secondary race

[0053] 3, lead piece

[0054] 4, body

[0055] 401, gas-liquid groove

[0056] 5, piston

[0057] 6, spring I

[0058] 7, spring II

[0059] 8, steel ball I

[0060] 9, secondary body

[0061] 10, steel ball II. DETAILED DESCRIPTION

[0062] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings. These embodiments are only used to illustrate the present application, and are not limiting to the present application.

[0063] In the description of the present application, it should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance.

[0064] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0065] In addition, in the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0066] As Figures 1-3 A non-unidirectional working state spray pump, comprising split piston, sealed cavity, reset component I, reset component II, reset component II is used for resetting split piston, reset component I is used for separating split piston, sealed cavity is formed by split piston in compression stroke Positive pressure, negative pressure is formed in expansion stroke,

[0067] The inner wall of the sealed cavity is provided with a limiting part for limiting the split piston, and in the compression stroke, the split piston is separated, and the sealed cavity is communicated with the pumping channel;

[0068] The inner wall of the sealed cavity is provided with a gas-liquid groove, in the expansion stroke, the split piston passes through the gas-liquid groove, the sealed cavity is communicated with the container through the gas-liquid groove, the sealed cavity is communicated with the gas-liquid channel, and the gas-liquid channel is used for liquid suction or air supplement;

[0069] The end of the sealed cavity away from the pumping channel is provided with a liquid suction channel;

[0070] The sealed cavity and the liquid suction channel are matched with steel ball I and steel ball II, the steel ball I and the steel ball II are arranged at the communication position of the sealed cavity and the oil suction channel, and are matched with a hole for abutting and sealing;

[0071] The steel ball I is close to or far away from the steel ball II by the reset component II, forming at least two working conditions:

[0072] When the steel ball I is free to move away from the position state of the liquid suction channel, the liquid suction channel and the sealed cavity are bidirectionally communicated;

[0073] When the steel ball I is free to move or abutted by the reset component close to the position state of the liquid suction channel, a one-way valve is formed, so that the liquid suction channel is unidirectionally communicated with the sealed cavity;

[0074] The steel ball II and the liquid suction channel cooperate to form at least two working conditions:

[0075] When the steel ball II is away from the position state of the sealed cavity, a one-way valve is formed, so that the liquid suction channel is unidirectionally communicated to the sealed cavity;

[0076] When the steel ball II is in a position close to the sealed cavity, a one-way valve is formed to enable the sealed cavity to communicate with the liquid suction channel in one direction;

[0077] The application adopts a combination of a gas-liquid groove, a switchable flow channel and a return spring to solve the problem of liquid suction failure of the spray pump in different postures, to ensure that a negative pressure liquid suction path can be formed during normal spraying and reverse spraying, to overcome the limitation that the liquid suction port is always above the liquid surface in the traditional structure and cannot suck liquid, and to achieve the technical effect of reliable liquid suction in double postures.

[0078] The application sets a limiting structure and a return member I / II to solve the problem of unstable sealing and exhaust control during pressing, to overcome the problem of disordered compression, exhaust and liquid suction rhythm in the traditional pump structure by accurately controlling the piston stroke and the separation node, to achieve the technical effects of stable exhaust and smooth liquid spraying;

[0079] The application sets a main column, a piston, a secondary piston and other multi-stage transmission and elastic structures to solve the problem that the sealed space cannot be accurately restored during structure resetting, to overcome the problem of spray failure or dripping caused by insufficient resetting, and to achieve the technical effects of stable resetting and continuous spraying;

[0080] To solve the limitation of the spray bottle in drug administration, the spray pump structure supporting normal spraying / reverse spraying is adopted, which is suitable for drug administration on the nose and throat of a supine patient, to overcome the phenomenon of inaccurate dose or spray failure caused by improper posture, and to achieve the technical effects of accurate, fast and safe drug administration;

[0081] Specifically, in an embodiment of the application, the abutting sealing of the split piston and the sealed cavity includes two working conditions:

[0082] During the compression stroke, the fluid in the sealed cavity cannot flow to the outside through the abutting position;

[0083] During the expansion stroke, when the steel ball I and the steel ball II make the sealed cavity and the liquid suction channel not communicate, the negative pressure in the sealed cavity sucks the external fluid through the abutting position;

[0084] On this basis, the gas-liquid groove structure is set through the cooperation of the piston and the inner wall of the sealed cavity, so that the piston can switch the on-off state of the gas-liquid channel when moving to different positions. During normal spraying, the skirt on the side away from the sealed cavity of the piston moves below the gas-liquid groove at the end of the compression stroke, opening the air supplement channel. During reverse spraying, the upper and lower skirts of the piston are located on both sides of the gas-liquid groove respectively, so that the gas-liquid groove communicates with the space above the liquid surface in the bottle body, forming a liquid suction path, thereby ensuring that the sealed cavity can effectively exhaust and suck liquid in different postures, ensuring the continuous and stable work of the spray pump in normal and reverse states, and achieving the expected technical effects of posture independence and accurate drug administration.

[0085] Specifically, in one embodiment of the present application, the split piston comprises a secondary piston 2, a piston 5; a sealed cavity is formed by a flange 3 and a body 4, the body 4 is provided with a secondary body 9 for connecting or forming part of the liquid suction channel; the flange 3 is matched with the body 4, and the flange 3 and the body 4 form the sealed cavity; one end of the secondary piston 2 is inserted into the main column 1, the main column 1 abuts against the secondary piston 2 through the spring I 6, the secondary piston 2 abuts against the piston 5, the main column 1 drives the secondary piston 2 and the piston 5 to move through the spring I 6, a compression stroke is formed, and compression continues to overcome the elastic force of the spring II 7, the piston 5 is limited at the end of the compression, the main column 1 overcomes the elastic force of the spring I 6, abuts against the secondary piston 2 to make it move, and the secondary piston 2 and the piston 5 are separated; a moving pair is formed between the main column 1 and the flange 3, and the abutting position is not sealed for air supplement; the lower end of the piston 5 and the secondary piston 2 abuts to form a seal; the piston 5 and the inner wall of the body 4 abut to form a seal, and the gas-liquid groove 401 of the inner wall of the body 4 is connected to the outside and the sealed cavity respectively according to the position of the piston 5; the upper and lower ends of the piston 5 are provided with outer skirts for abutting against the body 4 to form a seal;

[0086] During normal spraying, the outer skirt at the end of the piston 5 away from the sealed cavity moves below the gas-liquid groove 401 when the piston 5 is at the lower limit position of compression, so that the gas-liquid groove 401 is connected to the inside of the container to form a gas-liquid channel for air supplement;

[0087] During reverse spraying, the outer skirts at both ends of the piston 5 are located above and below the gas-liquid groove 401 respectively during the expansion stroke of the piston 5, so that the gas-liquid groove 401 is connected to the inside of the container to form a gas-liquid channel for liquid suction.

[0088] Specifically, in one embodiment of the present application, a spray bottle comprises a container, the container is provided with a non-uni-directional working state spray pump, and the inlet side of the container is provided with a seal for liquid suction and air supplement by the non-uni-directional working state spray pump.

[0089] Specifically, in one embodiment of the present application, the spray pump capable of normal and reverse spraying mainly comprises 10 components: 1 main column, 1 flange, 1 body, 1 secondary body, 1 secondary piston, 1 piston, 1 long spring, 1 short spring, and 2 steel balls; the functions are as follows:

[0090] Main column: liquid spraying channel, plays a connecting and sealing role;

[0091] Flange: fixes the body and the main column;

[0092] Body: supports other components, and forms a constant volume chamber in the normal spraying state and a liquid inlet channel in the reverse spraying state;

[0093] Secondary body: supports the body and forms a constant volume chamber in the reverse spraying state;

[0094] Piston: forms a sealed space with the pump chamber, and plays a role of movable sealing;

[0095] Sub-piston: support the main column, play a connection and sealing;

[0096] Long spring: elastic element to press the pump reciprocating;

[0097] Short spring: elastic element to press the pump reciprocating;

[0098] Steel ball: with the body, the body together to form a sealed chamber and play a one-way valve sealing element;

[0099] Product workflow and principles:

[0100] Positive spray process:

[0101] 1, the pump core in the absence of any action to maintain the original state, the pump cavity by ① ② ③ sealing position formed (such as Figure 4 ) ;

[0102] 2, when the pump core is pressed, the air in the chamber will be compressed, compressed to the sub-piston and piston in the open state (such as Figure 5 ), the air will be discharged along the direction of the arrow, complete exhaust;

[0103] 3, continue to press the pump core, the air in the chamber is discharged, the chamber formed a partial vacuum state, the liquid top open steel ball is absorbed into the chamber, because the liquid can not be compressed, so when the liquid to overcome the spring force, will be lifted piston, spray liquid (such as Figure 6 the arrow direction shown) ;

[0104] 4, when the stop press action, the nozzle, piston, sub-piston due to the spring force and reset, at this time again to form a sealed space, the chamber is in a vacuum state, for the next start to spray preparation (such as Figure 7 ).

[0105] Back spray process:

[0106] 1, the pump core in the absence of any action to maintain the original state, the pump cavity by ① ③ sealing position formed (such as Figure 8 ) ;

[0107] 2, when the pump core is pressed, the air in the chamber will be compressed, compressed to the sub-piston and piston in the open state (such as Figure 9 ), the air will be discharged along the direction of the arrow, complete exhaust;

[0108] 3, continue to press the pump core, the air in the chamber is discharged, the chamber forms a partial vacuum state, the liquid from the body vent into the chamber, because the liquid can not be compressed, so when the liquid overcomes the elastic force of the long spring, the piston will be lifted, and the liquid will be sprayed (such as Figure 10 );

[0109] 4, when the stop pressing action, the nozzle, piston, vice piston due to the elastic force of the long spring and reset, at this time, the sealing space is formed again, the chamber is in a vacuum state, a small amount of liquid is sucked in, ready for the next time (such as Figure 11 );

[0110] The application achieves the following technical effects:

[0111] The application overcomes the defects that the traditional spray pump cannot form effective sealing in different postures, and achieves the technical effect that both normal spraying and reverse spraying can work stably through the structure design of the split piston and the sealing cavity cooperating with each other.

[0112] The application overcomes the problem that the gravity type one-way valve fails in the inverted state through the combination of the double steel ball and the spring to form a multi-working-condition one-way / two-way valve control structure, and achieves the technical effect that the liquid suction path can be controlled in any direction.

[0113] The application overcomes the defects that the traditional structure cannot automatically switch the air supplementing / liquid suction channel through the dynamic cooperation of the gas-liquid groove and the outer skirt of the piston, and achieves the technical effect of automatic on-off control and bidirectional pumping.

[0114] In summary, the application aims to solve the technical problems of the existing spray pump, such as being only applicable to normal spraying, being unable to work stably in reverse spraying or other postures, one-way valve failure, poor liquid suction, and spraying failure, and provides a novel structure and reliable function non-one-way working state spray pump. Through the synergistic effect of the split piston, double steel ball valve control structure, reset spring, and gas-liquid groove, stable sealed cavity can be formed in normal spraying and reverse spraying states, and the liquid suction and air exhaust process can be automatically completed, which overcomes the defects of the traditional spray pump, such as strong posture dependence, discontinuous spraying, and liquid residue, and achieves the technical effects of multi-angle spraying, stable output, and precise drug delivery, which significantly improves the applicability, safety, and user experience of the spray pump.

[0115] The above is only the preferred embodiment of the application, and it should be noted that those skilled in the art can make some improvements and substitutions without departing from the technical principles of the application, and these improvements and substitutions should be regarded as the protection scope of the application.

Claims

1. A non-unidirectional spray pump comprising a split piston, a sealed chamber, a reset member I, and a reset member II. The reset member II is used to reset the split piston, and the reset member I is used to separate the split piston. The sealed chamber is pressurized by the split piston during the compression stroke and expands to form a negative pressure during the reset stroke. The pump is characterized by: A limiting portion is provided on the inner wall of the sealing cavity for limiting the position of the split piston. During the compression stroke, the split piston is separated and the sealing cavity is connected to the pumping channel. An air-liquid groove is provided on the inner wall of the sealed cavity. During the expansion stroke, the split piston passes through the air-liquid groove, so that the sealed cavity is connected to the container through the air-liquid groove. The sealed cavity is connected to the air-liquid channel, which is used for absorbing liquid or replenishing air. A liquid suction channel is provided at one end of the sealing cavity away from the pumping channel; The sealing cavity and the liquid suction channel are equipped with steel balls I and II. Steel balls I and II are arranged at the connection between the sealing cavity and the oil suction channel, and are equipped with holes for resisting sealing. The steel ball I is moved closer to the reset element II to resist or away from it, forming at least two working conditions: When the steel ball I is free to move away from the position of the liquid suction channel, the liquid suction channel and the sealing chamber are bidirectionally connected; When the steel ball I moves freely or is in a position close to the liquid suction channel against the reset member, a one-way valve is formed, so that the liquid suction channel is connected to the sealing chamber in one direction; The steel ball II and the liquid suction channel cooperate to form at least two working conditions: When the steel ball II is far away from the sealing chamber, a one-way valve is formed, so that the suction channel is connected to the sealing chamber in one direction; When the steel ball II is close to the sealing chamber, a one-way valve is formed, so that the sealing chamber is connected to the liquid suction channel in one direction.

2. A non-unidirectional working spray pump according to claim 1, characterized in that: The contact seal between the split piston and the sealing chamber includes two working conditions: During the compression stroke, the fluid in the sealing cavity cannot flow to the outside through the friction point; During the expansion stroke, when steel balls I and II disconnect the sealing cavity and the liquid suction channel, the negative pressure in the sealing cavity absorbs external fluid through the friction point.

3. A non-unidirectional working spray pump according to claim 2, characterized in that: The split piston comprises a sub-piston (2) and a piston (5); a sealing cavity is formed by a collar (3) and a main body (4); and the main body (4) is equipped with a sub-body (9) for connecting or forming a part of a liquid suction channel.

4. A non-unidirectional working spray pump according to claim 3, characterized in that: The collar piece (3) matches the body (4), and the collar piece (3) and the body (4) form a sealed cavity.

5. A non-unidirectional working spray pump according to claim 4, characterized in that: One end of the auxiliary piston (2) is placed in the main column (1), the main column (1) contacts the auxiliary piston (2) through the spring I (6), the auxiliary piston (2) contacts the piston (5), the main column (1) drives the auxiliary piston (2) and the piston (5) to move through the spring I (6), forming a compression stroke, and continues to compress by overcoming the elastic force of the spring II (7). At the end of the compression, the piston (5) is limited, and the main column (1) overcomes the elastic force of the spring I (6) and contacts the auxiliary piston (2) to make it move, so that the auxiliary piston (2) and the piston (5) are separated, and the pumping channel is opened.

6. A non-unidirectional working spray pump according to claim 41, characterized in that: A moving pair is formed between the main column (1) and the collar piece (3), and the contact portion is non-sealed for air replenishment.

7. The non-unidirectional spray pump according to claim 5, characterized in that: The lower ends of the piston (5) and the auxiliary piston (2) contact each other to form a seal.

8. The non-unidirectional spray pump according to claim 5, characterized in that: The piston (5) and the inner wall of the body (4) contact each other to form a seal, and depending on the position of the piston (5), the gas-liquid groove (401) on the inner wall of the body (4) is connected to the outside and the sealed cavity respectively.

9. The non-unidirectional spray pump according to claim 5, characterized in that: The piston (5) is provided with outer skirts at both the upper and lower ends for contacting the body (4) to form a seal; During positive spraying, when the piston (5) is at the lower limit position of compression, the outer skirt at one end away from the sealing chamber moves to the bottom of the gas-liquid groove (401), so that the gas-liquid groove (401) is connected to the interior of the container, forming a gas-liquid channel for gas replenishment; During reverse spraying, when the piston (5) is in the expansion stroke, the outer skirts at both ends of the piston (5) are respectively located above and below the gas-liquid groove (401), so that the gas-liquid groove (401) is connected to the interior of the container, forming a gas-liquid channel for liquid suction.

10. A spray bottle, using the non-unidirectional working spray pump according to any one of claims 1 to 9, comprising a container, characterized in that: The container is equipped with a non-unidirectional working spray pump, and a seal is provided on the inlet side of the container, and the non-unidirectional working spray pump is used for absorbing liquid and replenishing air.

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