Multi-posture self-adaptive double-valve atomizing pump device
Through the rotating counterweight of the main valve and the secondary valve and the control of negative pressure and gravity coordination, the problem of liquid residue and air mixing in the spray pump device in multiple postures is solved, and the stable liquid extraction effect in the front, inverted and flat states is achieved, which improves the flexibility and stability of the spray pump.
Patent Information
- Application Number
- CN202510691913.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-27
- Publication Date
- 2025-08-01
AI Technical Summary
In the front, inverted and flat position, there are problems such as liquid residue, air mixing or inability to discharge liquid. When the existing dual-valve structure is flat, it is impossible to achieve multi-position adaptive liquid extraction due to changes in liquid level and valve body inlet orientation.
The rotating counterweight of the main valve and the secondary valve and the switch valve control with negative pressure and gravity are adopted. Through the three-way structure and rotary seal design, the vertical, inverted and flat multi-position adaptive sealing liquid extraction is achieved. The secondary valve always maintains a downward posture when flat. The dual valve structure composed of the main valve and the secondary valve achieves stable liquid extraction in different postures.
The spray pump is able to achieve stable liquid extraction in any posture, avoid liquid residue and air mixing, ensure normal liquid extraction effect in the upright, inverted and flat states, and improve the flexibility and stability of the spray pump.
Smart Images

Figure CN120394232A_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of pressing spray pumps, and particularly relates to a multi-posture adaptive double-valve spray pump device. Background Art
[0002] Traditional spray pump devices mostly rely on a single valve and gravity for liquid supply, and there are significant posture limitations: when placed upright, they rely on a straw to extract the liquid at the bottom of the bottle; when inverted or placed horizontally, due to the inability of the valve to adaptively switch, it is easy to cause liquid residue, air mixing, or inability to discharge liquid. Although the existing double-valve structure improves the liquid extraction adaptability by adding a secondary valve, in the special liquid extraction situation of being placed horizontally, due to the influence of the liquid level height change and the problem of the inlet orientation of the valve body, the inlets of both the main valve and the secondary valve are above the liquid level, resulting in the inability to perform normal liquid extraction when placed horizontally, and it is difficult to achieve multi-posture adaptive liquid extraction in the upright, inverted, and horizontal postures. Summary of the Invention
[0003] Object of the Invention: In order to overcome the deficiencies in the prior art, the present invention provides a multi-posture adaptive double-valve spray pump device, which realizes multi-posture adaptive sealed liquid extraction in the upright, inverted, and horizontal postures through the rotational counterweight of the main valve and the secondary valve and the on-off valve control of the double valves in cooperation with negative pressure and gravity.
[0004] Technical Solution: To achieve the above object, a multi-posture adaptive double-valve spray pump device of the present invention includes:
[0005] A tee, which has a first liquid inlet, a second liquid inlet, and a liquid outlet, and the liquid outlet is connected to the liquid extraction pipe of the spray pump;
[0006] A main valve, which is fixedly arranged in the vertical direction, and the valve body outlet of the main valve is hermetically communicated with the first liquid inlet of the tee;
[0007] A secondary valve, the valve body outlet of which is hermetically communicated with the second liquid inlet of the tee, and an acute angle is formed between the axis of the secondary valve and the central axis of the liquid extraction pipe;
[0008] In the upright and inverted liquid extraction states, any one of the main valve or the secondary valve that faces downward is in the low position, the valve core of the low-position valve is opened for liquid inlet under negative pressure, and the valve core of the other high-position valve is closed by gravity.
[0009] Furthermore, in the horizontal liquid extraction state, the secondary valve faces downward, and the orientation of the nozzle of the spray pump is the same as the orientation of the secondary valve.
[0010] Further, it includes a rotary seal. The liquid outlet is rotatably and sealingly connected to the liquid suction pipe of the spray pump through the rotary seal; the valve body of the auxiliary valve deviates from the central axis of the liquid suction pipe in the horizontal direction, forming a lateral counterweight structure; the tee joint, the main valve and the auxiliary valve are rigidly connected to form an integral rotary assembly, which can rotate synchronously around the central axis of the liquid suction pipe;
[0011] In the horizontal liquid suction state, the gravity of the lateral counterweight structure drives the integral rotary assembly to rotate around the central axis of the liquid suction pipe, so that the auxiliary valve is adjusted below the main valve and in an inclined downward posture, the valve core of the auxiliary valve opens the liquid inlet, and the valve core of the main valve closes.
[0012] Further, in the upright liquid suction state, the main valve is below and in a downward posture, the auxiliary valve is above and in an inclined upward posture, the negative pressure received by the valve core of the main valve overcomes the gravity to open the liquid inlet, and the valve core of the auxiliary valve is closed by the gravity and the negative pressure.
[0013] Further, in the inverted liquid suction state, the main valve is above and in an upward posture, the auxiliary valve is below and in an inclined downward posture, the valve core of the main valve is closed by the gravity and the negative pressure, and the negative pressure received by the valve core of the auxiliary valve overcomes the gravity to open the liquid inlet.
[0014] Further, in the horizontal liquid suction state, the main valve is above and in a horizontal posture, the auxiliary valve is below and in an inclined downward posture, the valve core of the main valve is closed by the negative pressure, and the valve core of the auxiliary valve is opened by the negative pressure that overcomes the gravity to allow the liquid to enter.
[0015] Further, the spray pump is sealingly installed at the bottle mouth of the spray bottle. The inlet of the valve body of the main valve is butted with a straw extending to the bottom of the spray bottle; the main valve includes a main valve body and a main spherical valve core, the auxiliary valve includes an auxiliary valve body and an auxiliary spherical valve core, a cavity and a small hole are arranged inside the tee joint, and the small hole communicates with the liquid outlet channel of the tee joint through the cavity; a first tee joint conical surface is arranged at the inlet of the cavity, a second tee joint conical surface is arranged at the inlet of the small hole, a main valve body conical surface is arranged inside the main valve body, and an auxiliary valve body conical surface is arranged inside the auxiliary valve body.
[0016] Further, in the upright liquid suction state, the auxiliary spherical valve core is in sealing contact with the second tee joint conical surface under the action of gravity and negative pressure, blocking the air in the bottle from entering the cavity, and the main spherical valve core moves upward under the action of negative pressure to form a first gap with the main valve body conical surface, and the liquid enters the cavity through the straw and the first gap;
[0017] In the inverted liquid suction state, the main spherical valve core is in sealing contact with the first tee joint conical surface under the action of gravity and negative pressure, blocking the air in the bottle from entering the cavity, and the auxiliary spherical valve core moves obliquely upward under the action of negative pressure to form a second gap with the auxiliary valve body conical surface, and the liquid enters the cavity through the auxiliary valve body, the second gap and the small hole.
[0018] Further, in the horizontal liquid extraction state, the main spherical valve core moves horizontally towards the position where the first three-way conical surface is located under negative pressure until it is in sealed contact with the first three-way conical surface, blocking the air in the bottle from entering the cavity. The auxiliary spherical valve core moves obliquely upward under negative pressure to form a third gap with the auxiliary valve body conical surface, and the liquid enters the cavity through the auxiliary valve body, the third gap, and the small hole.
[0019] Further, the inner wall of the main valve body is provided with first grooves distributed in a circumferential array, and the inner wall of the auxiliary valve body is provided with second grooves distributed in a circumferential array to reduce the liquid flow resistance;
[0020] In the state where the main valve is opened, the liquid flows through the first grooves; in the state where the auxiliary valve is opened, the liquid flows through the second grooves;
[0021] In the horizontal liquid extraction state, when the main spherical valve core moves horizontally towards the position where the first three-way conical surface is located under negative pressure, when the main spherical valve core passes through the first three-way conical surface, it makes a rolling climbing motion along the slope of the first three-way conical surface until it contacts the first three-way conical surface in the circumferential direction to achieve sealing.
[0022] Beneficial effects: Through the structural design of rotational counterweight self - adaptation, the present invention can always keep the auxiliary valve facing downwards during horizontal liquid extraction, enabling the inlet of the auxiliary valve to adaptively adjust its orientation and immerse below the liquid level. Cooperating with the double - valve structure composed of the main valve and the auxiliary valve, the opening and closing of the valve are controlled through gravity and negative pressure, realizing stable liquid extraction of the spray pump in any posture and achieving the purpose of self - adaptive sealed liquid extraction in multiple postures including upright, inverted, and horizontal. Description of the Drawings
[0023] Figure 1 It is a structural schematic diagram of a three - way, a main valve, and an auxiliary valve;
[0024] Figure 2 It is a semi - sectional structural schematic diagram of a three - way, a main valve, and an auxiliary valve;
[0025] Figure 3 It is a structural schematic diagram in the upright liquid extraction state;
[0026] Figure 4 It is a structural schematic diagram in the inverted liquid extraction state;
[0027] Figure 5 It is a structural schematic diagram of Embodiment 1 in the horizontal liquid extraction state;
[0028] Figure 6 It is a structural schematic diagram of Embodiment 2 in the horizontal liquid extraction state;
[0029] Figure 7 It is a structural schematic diagram of the main valve body;
[0030] Figure 8It is a schematic structural diagram of the auxiliary valve body. Specific embodiments
[0031] The present invention will be further described below in conjunction with the accompanying drawings.
[0032] As Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 shown, a multi-posture adaptive double-valve spray pump device includes: a tee 1 having a first liquid inlet, a second liquid inlet and a liquid outlet, and the liquid outlet is connected to the liquid suction pipe 5 of the spray pump 2; a main valve 3 fixedly arranged in the vertical direction, and the valve body outlet of the main valve 3 is hermetically communicated with the first liquid inlet of the tee 1; an auxiliary valve 4, the valve body outlet of which is hermetically communicated with the second liquid inlet of the tee 1, and an acute angle is formed between the axis of the auxiliary valve 4 and the central axis of the liquid suction pipe 5; as Figure 3 and Figure 4 shown, in the upright and inverted liquid suction states, any downward valve in the main valve 3 or the auxiliary valve 4 is in the low position, the valve core of the low-position valve is opened for liquid inlet under negative pressure, and the valve core of the other high-position valve is closed by gravity.
[0033] There are two embodiments when pumping and spraying in the horizontal position, as follows:
[0034] Figure 5 Embodiment 1: As shown in , in the horizontal liquid suction state, the auxiliary valve 4 faces downward, and the orientation of the nozzle 2a of the spray pump 2 is the same as that of the auxiliary valve 4. At this time, the inlet of the auxiliary valve 4 is immersed below the liquid level, and the nozzle 2a of the spray pump 2 can perform downward spraying. Since the nozzle 2a can be rotated, when ensuring the fixed downward posture of the auxiliary valve 4, the user can manually rotate the nozzle 2a to adjust the orientation for convenient spraying. In order to ensure the above spraying can be performed, it is necessary to ensure that the auxiliary valve 4 is in the downward posture. When installing the spray pump device at the factory, a first assembly mark on the same side as the auxiliary valve 4 can be set at the bottle mouth of the spray bottle 6, and a second assembly mark on the same side as the auxiliary valve 4 can be set on the pump body of the spray pump 2. When screwing the spray pump 2 onto the bottle mouth of the spray bottle 6, when the second assembly mark rotates to the position where both are downward and aligned with the first assembly mark, it indicates that the auxiliary valve 4 is assembled in the downward posture. When the user gets the spray device after leaving the factory, if horizontal spraying is needed, hold the spray bottle 6 and rotate it so that the assembly marks are below, indicating that the auxiliary valve 4 is already in the downward posture. At this time, the orientation of the nozzle 2a is set in advance by the assembler to be the same as that of the auxiliary valve 4 during the assembly process, which is convenient for the user to use and improves the spraying stability. It is an extreme special case where downward spraying can be performed during horizontal spraying.
[0035] In Embodiment 1, the flexibility of the spray in the flat state is greatly restricted by the attitude. Therefore, the present invention provides Embodiment 2: The present invention includes a rotary seal 8, and the liquid outlet is rotatably and sealingly connected to the liquid suction pipe 5 of the spray pump 2 through the rotary seal 8; the valve body of the auxiliary valve 4 deviates from the central axis of the liquid suction pipe 5 in the horizontal direction to form a lateral counterweight structure; the tee 1, the main valve 3 and the auxiliary valve 4 are rigidly connected to form an integral rotary assembly, which can rotate synchronously around the central axis of the liquid suction pipe 5; as Figure 6 shown, in the flat liquid suction state, the gravity of the lateral counterweight structure drives the integral rotary assembly to rotate around the central axis of the liquid suction pipe 5, so that the auxiliary valve 4 is adjusted below the main valve 3 and in an inclined downward attitude, the valve core of the auxiliary valve 4 opens for liquid inlet, and the valve core of the main valve 3 closes. Through the structural design of rotary counterweight self-adaptation, the present invention can always keep the auxiliary valve 4 in a downward attitude during flat liquid suction, so that the inlet of the auxiliary valve 4 is self-adaptively adjusted to face downward and immersed below the liquid surface. Cooperating with the double-valve structure composed of the main valve 3 and the auxiliary valve 4, the opening and closing valve control is realized through gravity and negative pressure control, and the stable liquid suction of the spray pump 2 in any attitude is realized, achieving the purpose of self-adaptive sealed liquid suction in multiple attitudes of upright, inverted and flat.
[0036] It should be noted that during the spraying process, for the convenience of spraying, the use postures of inverted and horizontal spraying are generally for self-use, while the use posture of upright spraying is generally for others to spray for oneself. The multi-posture self-adaptive double-valve spray pump device of the present invention has a wide range of applications, such as mosquito repellent liquid spray, etc.
[0037] Among them, in order to avoid the problem that the sealing contact is insufficient when the ball valve is closed due to too large an angle, and to avoid the problem that the liquid flow rate may be restricted due to too small an angle, the acute angle α of the present invention is preferably 25°, which can provide a sufficient flow cross-sectional area while ensuring the sealing performance.
[0038] As Figure 1 、 Figure 2 and Figure 3 shown, the spray pump 2 is sealingly installed at the bottle mouth of the spray bottle 6, and the inlet of the valve body of the main valve 3 is butted with a straw 7 extending to the bottom of the spray bottle 6; the main valve 3 includes a main valve body 31 and a main spherical valve core 32, the auxiliary valve 4 includes an auxiliary valve body 41 and an auxiliary spherical valve core 42, a cavity 11 and a small hole 12 are arranged inside the tee 1, and the small hole 12 communicates with the liquid outlet channel 13 of the tee 1 through the cavity 11; a first tee cone surface 14 is arranged at the inlet of the cavity 11, a second tee cone surface 15 is arranged at the inlet of the small hole 12, a main valve body cone surface 16 is arranged inside the main valve body 31, and an auxiliary valve body cone surface 17 is arranged inside the auxiliary valve body 41.
[0039] In the normal non-liquid-drawing state, the main valve 3 is at the bottom and in a downward posture, and the sub-valve 4 is at the top and in an inclined upward posture. The valve cores of both the main valve 3 and the sub-valve 4 are closed under the action of gravity. More specifically, in the normal non-liquid-drawing state, the main spherical valve core 32 is in sealing contact with the main valve body conical surface 16 under the action of gravity, and the sub-spherical valve core 42 is in sealing contact with the second three-way conical surface 15 under the action of gravity.
[0040] For others to spray on themselves, such as Figure 3 As shown, in the normal liquid-drawing state, the main valve 3 is at the bottom and in a downward posture, and the sub-valve 4 is at the top and in an inclined upward posture. The negative pressure received by the valve core of the main valve 3 overcomes gravity to open the liquid inlet, and the valve core of the sub-valve 4 is closed under the action of gravity and negative pressure. More specifically, in the normal liquid-drawing state, the sub-spherical valve core 42 is in sealing contact with the second three-way conical surface 15 under the action of gravity and negative pressure, blocking the air in the bottle from entering the cavity 11. The main spherical valve core 32 moves upward under negative pressure to form a first gap 18 with the main valve body conical surface 16, and the liquid enters the cavity 11 through the straw 7 and the first gap 18.
[0041] When spraying on oneself, such as Figure 4 As shown, in the inverted liquid-drawing state, the main valve 3 is at the top and in an upward posture, and the sub-valve 4 is at the bottom and in an inclined downward posture. The valve core of the main valve 3 is closed under the action of gravity and negative pressure, and the negative pressure received by the valve core of the sub-valve 4 overcomes gravity to open the liquid inlet. More specifically, in the inverted liquid-drawing state, the main spherical valve core 32 is in sealing contact with the first three-way conical surface 14 under the action of gravity and negative pressure, blocking the air in the bottle from entering the cavity 11. The sub-spherical valve core 42 moves obliquely upward under negative pressure to form a second gap 19 with the sub-valve body conical surface 17, and the liquid enters the cavity 11 through the sub-valve body 41, the second gap 19, and the small hole 12.
[0042] When spraying on oneself, such as Figure 5 As shown, in the horizontal liquid-drawing state, the main valve 3 is at the top and in a horizontal posture, and the sub-valve 4 is at the bottom and in an inclined downward posture. The valve core of the main valve 3 is closed under negative pressure, and the negative pressure received by the valve core of the sub-valve 4 overcomes gravity to open the liquid inlet. More specifically, in the horizontal liquid-drawing state, the main spherical valve core 32 moves horizontally toward the position where the first three-way conical surface 14 is located under negative pressure until it is in sealing contact with the first three-way conical surface 14, blocking the air in the bottle from entering the cavity 11. The sub-spherical valve core 42 moves obliquely upward under negative pressure to form a third gap 20 with the sub-valve body conical surface 17, and the liquid enters the cavity 11 through the sub-valve body 41, the third gap 20, and the small hole 12.
[0043] It should be noted that precisely because in the horizontal liquid-drawing state, the sub-valve 4 of the present invention is adaptively adjusted to be inclined downward, rather than completely vertically downward, the negative pressure overcomes gravity, making it easier for the sub-ball valve 42 to move obliquely upward, achieving a faster and more stable valve-opening action, ensuring the effective execution of horizontal spraying and having sufficient spray volume.
[0044] In addition, the horizontal liquid extraction and spraying state where the spray bottle 6 is in a completely horizontal position is an extremely special case. In this extremely special case, the auxiliary valve 4 acting as a counterweight can adaptively adjust downward to ensure the smoothness and stability of liquid extraction and spraying.
[0045] Through the cooperation of the gravity and negative pressure on the valve core, it is ensured that only a single valve opens in multiple postures of upright, inverted, and horizontal positions, avoiding air mixing or liquid backflow. Moreover, the negative pressure directly acts on the valve core to control opening and closing, improving the reliability of opening and closing. When sealed, the spherical valve core contacts the conical surface to form a circumferential linear seal, adapting to multi-angle displacement and preventing liquid leakage. In addition, the auxiliary valve 4 is not directly connected to the cavity 11, but is connected to the cavity 11 through a small hole 12. The small hole 11 realizes the liquid diversion transition, avoiding the liquid directly entering the cavity 11 to form a large turbulence when the auxiliary valve 4 opens. Instead, it first conducts diversion transition through the small hole 12, thereby being able to reduce the turbulence, reduce the conveying resistance, and improve the liquid conveying efficiency.
[0046] Such as Figure 7 and Figure 8 As shown, the inner wall of the main valve body 31 is provided with first grooves 31a distributed in a circumferential array, and the inner wall of the auxiliary valve body 41 is provided with second grooves 41a distributed in a circumferential array for reducing the liquid flow resistance; when the main valve 3 is in the open state, the liquid flows through the first grooves 31a; when the auxiliary valve 4 is in the open state, the liquid flows through the second grooves 41a; when the valve is in the open state for liquid extraction, during the movement of the spherical valve core, since the spherical valve core slips and contacts the inner wall of the valve body, in order to ensure that the liquid can pass through more smoothly, the grooves are provided to reduce the liquid flow resistance while ensuring that the liquid can pass through.
[0047] In addition, in the horizontal liquid extraction state, when the main spherical valve core 32 moves laterally toward the position of the first three-way conical surface 14 under the negative pressure, when the main spherical valve core 32 passes through the first three-way conical surface 14, it makes a rolling climbing movement along the slope of the first three-way conical surface 14. This climbing movement enables the main spherical valve core 32 to more easily roll from the bottom of the slope to the top of the slope until it contacts the first three-way conical surface 14 in the circumferential direction to achieve sealing, ensuring more stable and reliable sealing.
[0048] The rigid connection of the three-way joint 1, the main valve 3, and the auxiliary valve 4 is at least one of threaded fastening, interference fit nesting, or welding.
[0049] The reason why the present invention adopts the rotatable structure design of the double valve and the counterweight is that the user's posture is not fixed during the normal use of the spray. Some are upright, some are inverted, and some are placed flat. As the use time increases and the liquid continuously decreases, the liquid level will also show different position states relative to the valve in different postures. Ordinary single-valve sprays or existing double-valve sprays in the prior art cannot meet the applicability sprays in multiple postures of upright, inverted, and flat. However, when the present invention sprays, regardless of the spray posture adopted, based on the rotatable structure design with the auxiliary valve as the counterweight, the auxiliary valve can always rotate under the action of gravity to the lower part of the main valve and the posture is downward, so that its inlet is immersed below the liquid level, ensuring the normal and stable execution of the spray.
[0050] Meanwhile, in order to ensure the stability and high-efficiency execution of the auxiliary valve as the counterweight, the auxiliary valve is made of metal. Of course, on the premise of ensuring the auxiliary valve as the counterweight, the main valve and the tee can also be made of metal.
[0051] The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.
Claims
1. A multi-posture adaptive double-valve spray pump device, characterized in that: Comprising: A tee joint (1) having a first liquid inlet, a second liquid inlet and a liquid outlet, and the liquid outlet is connected to the liquid suction pipe (5) of the spray pump (2); A main valve (3) fixedly arranged in the vertical direction, and the valve body outlet thereof is in sealed communication with the first liquid inlet of the tee joint (1); A sub-valve (4) whose valve body outlet is in sealed communication with the second liquid inlet of the tee joint (1), and an acute angle is formed between the axis of the sub-valve (4) and the central axis of the liquid suction pipe (5); In the upright and inverted liquid suction states, any downward valve in the main valve (3) or the sub-valve (4) is in the low position, the valve core of the low-position valve is opened for liquid inlet under negative pressure, and the valve core of the other high-position valve is closed by gravity.
2. The multi-posture adaptive double-valve spray pump device according to claim 1, wherein: In the horizontal liquid suction state, the sub-valve (4) faces downward, and the orientation of the nozzle (2a) of the spray pump (2) is the same as that of the sub-valve (4).
3. The multi-posture adaptive double-valve spray pump device according to claim 1, characterized in that: Comprising a rotary seal (8), the liquid outlet is rotatably and sealingly connected to the liquid suction pipe (5) of the spray pump (2) through the rotary seal (8); the valve body of the sub-valve (4) deviates from the central axis of the liquid suction pipe (5) in the horizontal direction to form a lateral counterweight structure; the tee joint (1), the main valve (3) and the sub-valve (4) are integrally formed into a rotary assembly through rigid connection and can rotate synchronously around the central axis of the liquid suction pipe (5); In the horizontal liquid suction state, the gravity of the lateral counterweight structure drives the integral rotary assembly to rotate around the central axis of the liquid suction pipe (5), so that the sub-valve (4) is adjusted below the main valve (3) and in an inclined downward posture, and the valve core of the sub-valve (4) is opened for liquid inlet, and the valve core of the main valve (3) is closed.
4. A multi-posture adaptive double-valve spray pump device according to claim 1, characterized in that: In the upright liquid suction state, the main valve (3) is below and in a downward posture, the sub-valve (4) is above and in an inclined upward posture, the negative pressure received by the valve core of the main valve (3) overcomes gravity to open for liquid inlet, and the valve core of the sub-valve (4) is closed by gravity and negative pressure.
5. A multi-posture adaptive double-valve spray pump device according to claim 1, characterized in that: In the inverted liquid suction state, the main valve (3) is above and in an upward posture, the sub-valve (4) is below and in an inclined downward posture, the valve core of the main valve (3) is closed by gravity and negative pressure, and the negative pressure received by the valve core of the sub-valve (4) overcomes gravity to open for liquid inlet.
6. The multi-posture adaptive double-valve spray pump device according to claim 2, wherein: In the horizontal liquid suction state, the main valve (3) is above and in a horizontal posture, the sub-valve (4) is below and in an inclined downward posture, the valve core of the main valve (3) is closed by negative pressure, and the valve core of the sub-valve (4) is opened for liquid inlet by negative pressure overcoming gravity.
7. The multi-posture adaptive double-valve spray pump device according to claim 6, characterized in that: The spray pump (2) is sealed and installed on the bottle mouth of the spray bottle (6); the valve body inlet of the main valve (3) is connected to a straw (7) extending to the bottom of the spray bottle (6); the main valve (3) includes a main valve body (31) and a main spherical valve core (32); the auxiliary valve (4) includes an auxiliary valve body (41) and an auxiliary spherical valve core (42); a cavity (11) and a small hole (12) are provided inside the three-way valve (1); the small hole (12) is connected to the liquid outlet channel (13) of the three-way valve (1) through the cavity (11); a first three-way conical surface (14) is provided at the inlet of the cavity (11), and a second three-way conical surface (15) is provided at the inlet of the small hole (12); a main valve body conical surface (16) is provided in the main valve body (31), and a secondary valve body conical surface (17) is provided in the secondary valve body (41).
8. The multi-posture adaptive dual-valve spray pump device according to claim 6, characterized in that: In the upright liquid pumping state, the auxiliary spherical valve core (42) is in sealed contact with the second three-way conical surface (15) under the force of gravity and negative pressure, thereby preventing the air in the bottle from entering the cavity (11); the main spherical valve core (32) is moved upward under the negative pressure to form a first gap (18) with the main valve body conical surface (16), and the liquid enters the cavity (11) through the suction tube (7) and the first gap (18); In the inverted liquid extraction state, the main spherical valve core (32) is in sealed contact with the first three-way conical surface (14) due to gravity and negative pressure, thereby preventing the air in the bottle from entering the cavity (11). The auxiliary spherical valve core (42) is moved obliquely upward by the negative pressure to form a second gap (19) with the auxiliary valve body conical surface (17), and the liquid enters the cavity (11) through the auxiliary valve body (41), the second gap (19), and the small hole (12).
9. The multi-posture adaptive dual-valve spray pump device according to claim 6, characterized in that: In the horizontal liquid pumping state, the main spherical valve core (32) is moved laterally toward the position of the first three-way conical surface (14) by the negative pressure until it is in sealing contact with the first three-way conical surface (14), thereby blocking the air in the bottle from entering the cavity (11). The auxiliary spherical valve core (42) is moved obliquely upward by the negative pressure to form a third gap (20) with the auxiliary valve body conical surface (17), and the liquid enters the cavity (11) through the auxiliary valve body (41), the third gap (20), and the small hole (12).
10. The multi-posture adaptive double-valve spray pump device according to claim 9, characterized in that: The inner wall of the main valve body (31) is provided with first grooves (31a) distributed in a circumferential array, and the inner wall of the auxiliary valve body (41) is provided with second grooves (41a) distributed in a circumferential array, for reducing liquid flow resistance; When the main valve (3) is in an open state, the liquid flows through the first tank body (31a); when the auxiliary valve (4) is in an open state, the liquid flows through the second tank body (41a); In the horizontal pumping state, the main spherical valve core (32) is subjected to negative pressure and moves laterally toward the position of the first three-way conical surface (14). When the main spherical valve core (32) passes the first three-way conical surface (14), it performs a rolling climbing motion along the slope of the first three-way conical surface (14) until it contacts the first three-way conical surface (14) in the circumferential direction to achieve sealing.