A pump with precise discharge direction

Abstract

The present invention discloses a press pump with accurate liquid discharge direction, comprising: a main body, a pump chamber is provided inside, and a liquid suction port is provided at the bottom of the pump chamber; a liquid discharge nozzle is fixedly provided on the main body, and a liquid discharge channel is provided inside; a liquid discharge pipe group is movably provided in the pump chamber, can be raised and lowered relative to the liquid discharge nozzle, and is connected to a piston that abuts against the inner circumferential wall of the pump chamber, a fluid channel that is connected to the liquid discharge channel is provided in the liquid discharge pipe group, and a channel port that can connect the pump chamber and the fluid channel is provided in the fluid channel; a switch valve assembly is movably provided in the main body, and is used to control the on and off of the liquid suction port and the channel port; a pressing piece is movably provided in the main body, and is in contact with the upper part of the liquid discharge pipe group, and is used to drive the liquid discharge pipe group to move downward so that the switch valve assembly opens the channel port and closes the liquid suction port. The liquid discharge nozzle of the above press pump is fixedly provided on the main body, and the press pump can output liquid in a fixed direction, achieving the effect of accurate liquid discharge direction, and the user has a better pressing experience.

Description

Technical Field

[0001] The invention relates to a pressing pump with accurate liquid discharge direction. Background Art

[0002] A typical pump consists of a main body and a pump core assembly that moves upward and downward. The pump core assembly is connected to a push button that drives it downward. A spring element is connected to the push button or the pump core assembly to force it upward. When the user presses the push button downward, the push button drives the pump core assembly downward, and liquid passes through the interior of the pump core assembly and is discharged from the output end of the push button. As a result, as the push button moves up and down, the pump's discharge direction fluctuates, making it impossible to accurately direct liquid delivery to a specific object.

[0003] In addition, general compression pumps require the palm of your hand to press down on the head, which requires a lot of force, is not comfortable enough, and is not convenient to operate. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a press pump with accurate liquid discharge direction, wherein the liquid discharge nozzle of the press pump is fixedly arranged and can continuously discharge liquid in a fixed direction toward a certain object.

[0005] According to an embodiment of the present invention, a press pump with accurate liquid discharge direction includes: a main body, a pump chamber is provided inside the main body, and a liquid suction port is provided at the bottom of the pump chamber; a liquid outlet nozzle is fixed to the main body, and a liquid outlet channel is provided inside the liquid outlet nozzle; a liquid outlet pipe group is movably provided in the pump chamber and can be raised and lowered relative to the liquid outlet nozzle, the liquid outlet pipe group is connected to a piston that abuts against the inner circumferential wall of the pump chamber, a fluid channel that is maintained in communication with the liquid outlet channel is provided in the liquid outlet pipe group, and a channel port that can connect the pump chamber and the fluid channel is provided in the fluid channel; a switch valve assembly is movably provided in the main body for controlling the on and off of the liquid suction port and the channel port; a pressing member is movably provided in the main body and contacts the upper part of the liquid outlet pipe group, and is used to drive the liquid outlet pipe group to move downward so that the switch valve assembly opens the channel port and closes the liquid suction port.

[0006] The press pump with accurate liquid discharge direction according to the embodiment of the present invention has at least the following beneficial effects:

[0007] The liquid outlet nozzle of the above-mentioned pressing pump is fixedly set on the main body, and the liquid outlet tube group keeps the internal fluid channel and the liquid outlet channel of the liquid outlet nozzle connected when it moves up and down. When the pressing part drives the liquid outlet tube group and the piston to move downward, the switch valve assembly opens the channel mouth and closes the suction port. The liquid in the pump chamber passes through the fluid channel and is discharged from the liquid outlet channel. The pressing pump can output liquid in a fixed direction, achieving the effect of accurate discharge direction, and the user's pressing experience is better.

[0008] In some embodiments of the present invention, the pressing member is a lever whose one end is rotatably provided on the main body, and the lever is provided with a pushing portion that can abut against the upper part of the liquid outlet tube group, and the distance between the other end of the lever and the pushing portion is greater than the distance between the one end of the lever rotatably provided on the main body and the pushing portion.

[0009] In some embodiments of the present invention, the pushing portion is provided with a circular arc groove with an opening facing downward, and the upper end of the liquid outlet tube assembly is provided with a circular arc convex portion matching the circular arc groove.

[0010] In some embodiments of the present invention, two oppositely arranged side ears are provided at the upper end of the liquid outlet pipe group, the arc convex portion is provided on the side ear portion, and the side ear portion is provided with mounting through-holes along the radial direction of the liquid outlet pipe group. An arc-shaped plastic strip is provided between the main body and the side ear portion, and one end of the arc-shaped plastic strip is provided with a column portion inserted into the mounting through-hole, and the other end of the arc-shaped plastic strip elastically abuts against the main body.

[0011] In some embodiments of the present invention, a cover is provided on the upper portion of the main body, the cover has a accommodating cavity, the upper portion and the side of the accommodating cavity are provided with openings, the lever is plate-shaped, one end of the lever is rotatably provided on the cover and is located within the accommodating cavity, the other end of the lever extends out along the side opening of the accommodating cavity, and the cover is provided with a downwardly bent handle below the side opening of the accommodating cavity.

[0012] In some embodiments of the present invention, the liquid outlet nozzle includes a liquid discharge pipe and a vertical cylinder, one end of the liquid discharge pipe extends from the side wall of the cover shell, and the other end of the liquid outlet nozzle is connected to the upper end of the vertical cylinder, and the liquid outlet pipe group is movably arranged in the vertical cylinder for lifting and lowering movement.

[0013] In some embodiments of the present invention, the inner wall of the vertical cylinder is provided with a conical cylinder that is larger at the top and smaller at the bottom. A movable cavity is defined between the conical cylinder and one end of the discharge pipe close to the vertical cylinder. A valve core is contained in the movable cavity that can seal or open the conical cylinder.

[0014] In some embodiments of the present invention, the liquid outlet pipe group includes a sleeve and an inner tube located inside the sleeve, the inner tube is telescopically arranged in the vertical tube, the vertical tube is located in the gap between the sleeve and the inner tube, and the piston is connected to the lower end of the inner tube and abuts against the lower end of the sleeve.

[0015] In some embodiments of the present invention, the switch valve assembly includes a valve stem, the upper end of the valve stem is provided with a first sealing portion corresponding to the channel opening, and the lower end of the valve stem is provided with a second sealing portion corresponding to the liquid suction port, the valve stem can move to the first sealing portion to open the channel opening and make the second sealing portion close the liquid suction port, or the valve stem can move to the first sealing portion to close the channel opening and make the second sealing portion open the liquid suction port.

[0016] In some embodiments of the present invention, the main body is provided with a limiting sleeve which is sleeved on the outside of the liquid outlet pipe group, and the limiting sleeve can rotate relative to the liquid outlet pipe group. The side wall of the limiting sleeve is provided with a vertical guide hole extending downward from the upper end of the limiting sleeve, and the outer peripheral wall of the liquid outlet pipe group is provided with a guide column which can abut against the upper end of the limiting sleeve or enter the vertical guide hole.

[0017] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0019] Figure 1 A schematic structural diagram of an embodiment of a pressing pump with accurate liquid discharge direction according to the present invention when no pressure is applied to the pressing member;

[0020] Figure 2 for Figure 1 An internal cross-sectional schematic diagram of an embodiment;

[0021] Figure 3 for Figure 1 A schematic diagram of the internal cross-section of the pressing member of the embodiment when pressed;

[0022] Figure 4 for Figure 1 A schematic diagram of the structural decomposition of an embodiment;

[0023] Figure 5 for Figure 1 Schematic diagram of the structure of the embodiment after removing the cover and some parts. DETAILED DESCRIPTION

[0024] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0025] In the description of the present invention, it should be understood that descriptions involving orientations, such as the orientations or positional relationships indicated by terms such as "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside", are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] In the description of the present invention, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0027] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0028] See also Figures 1 to 3 The present invention provides a press pump with accurate liquid discharge direction, comprising: a body 100, a pump chamber 110 is provided inside the body 100, and a liquid suction port 120 is provided at the bottom of the pump chamber 110; a liquid discharge nozzle 200 is fixedly provided on the body 100, and a liquid discharge channel 201 is provided inside the liquid discharge nozzle 200; a liquid discharge pipe group 300 is movably provided in the pump chamber 110 and can be lifted and lowered relative to the liquid discharge nozzle 200, the liquid discharge pipe group 300 is connected to a piston 400 that abuts against the inner circumferential wall of the pump chamber 110, and a liquid discharge pipe group 300 is provided with a liquid discharge channel 201; The liquid channel 201 maintains a connected fluid channel 321, and a channel opening 322 is provided in the fluid channel 321 to connect the pump chamber 110 and the fluid channel 321; the switch valve assembly 500 is movably provided in the main body 100, and is used to control the opening and closing of the liquid suction port 120 and the channel opening 322; the pressing member 600 is movably provided in the main body 100, and contacts the upper part of the liquid outlet pipe group 300, and is used to drive the liquid outlet pipe group 300 to move downward so that the switch valve assembly 500 opens the channel opening 322 and closes the liquid suction port 120.

[0029] The liquid outlet nozzle 200 of the above-mentioned press pump is fixedly arranged on the main body 100, and the liquid outlet tube group 300 keeps the internal fluid channel 321 and the liquid outlet channel 201 of the liquid outlet nozzle 200 connected during the lifting and lowering movement. When the pressing member 600 drives the liquid outlet tube group 300 and the piston 400 to move downward, the switch valve assembly 500 opens the channel opening 322 and closes the liquid suction port 120. The liquid in the pump chamber 110 passes through the fluid channel 321 and is discharged from the liquid outlet channel 201. The press pump can output liquid in a fixed direction, achieving the effect of accurate discharge direction, and the user's pressing experience is better. When the pressing member 600 is subjected to the upward restoring force of the elastic member, the liquid outlet tube group 300 and the piston 400 move upward, the switch valve assembly 500 closes the channel opening 322 and opens the liquid suction port 120. The liquid in the bottle used in conjunction with the press pump can be replenished into the pump chamber 110 through the liquid suction port 120.

[0030] See also Figure 2 and Figure 3 In some embodiments of the present invention, the pressing member 600 is a lever with one end rotatably mounted on the body 100. The lever is provided with a pushing portion 610 capable of abutting the upper portion of the liquid discharge tube assembly 300. The distance between the other end of the lever and the pushing portion 610 is greater than the distance between the one end of the lever rotatably mounted on the body 100 and the pushing portion 610. It is understood that when a user presses the lever downward, the pushing portion 610 abuts against the upper portion of the liquid discharge tube assembly 300 to push the liquid discharge tube assembly 300 downward. Furthermore, the lever is a labor-saving lever; liquid discharge can be achieved by simply pressing downward, and the pressing feeling is relatively comfortable.

[0031] See also Figure 2 and Figure 4 In some embodiments of the present invention, the pushing portion 610 is provided with a downwardly opening circular arc groove 620, and the upper end of the liquid outlet tube assembly 300 is provided with a circular arc protrusion 311 that matches the circular arc groove 620. When the lever swings downward, the circular arc groove 620 of the pushing portion 610 abuts against the circular arc protrusion 311 of the liquid outlet tube assembly 300, facilitating the transmission of downward thrust to drive the liquid outlet tube assembly 300 downward, and preventing interference between the lever and the liquid outlet tube assembly 300.

[0032] See also Figure 2 and Figure 4In some embodiments of the present invention, the upper end of the liquid discharge tube assembly 300 is provided with two oppositely disposed side ears 312, and a circular arc convex portion 311 is provided on the side ears 312. The side ears 312 are provided with mounting holes 313 radially extending through the liquid discharge tube assembly 300. A curved plastic strip 700 is provided between the main body 100 and the side ears 312. One end of the curved plastic strip 700 is provided with a plug-in column 710 inserted into the mounting hole 313, and the other end of the curved plastic strip 700 elastically abuts against the main body 100. It should be noted that the curved plastic strip 700 is equivalent to the elastic member on an ordinary press pump. The two curved plastic strips 700 are respectively connected to the two side ears 312, which is conducive to driving the liquid discharge tube assembly 300 and the piston 400 to rise smoothly, and the above structure is easy to assemble. In addition, all components of the entire press pump are made of plastic material, which is conducive to waste recycling.

[0033] See also Figure 1 and Figure 2 In some embodiments of the present invention, a cover 130 is provided on the upper portion of the body 100. The cover 130 has a receiving cavity with openings on the upper and side portions of the receiving cavity. The lever is plate-shaped, with one end of the lever rotatably mounted on the cover 130 and located within the receiving cavity, while the other end of the lever extends out along the side opening of the receiving cavity. The cover 130 is provided with a downwardly bent handle 140 below the side opening of the receiving cavity. During use, the user grasps the handle 140 with four fingers of the hand and presses the thumb downward against the end of the lever. When the thumb pushes the lever downward, liquid is discharged from the liquid outlet 200. The operation is very convenient and the hand feel is good. The upper opening and the side opening of the receiving cavity respectively provide clearance space for the movement of the lever.

[0034] See also Figure 2 、 Figure 3 and Figure 4 In some embodiments of the present invention, the liquid outlet nozzle 200 includes a liquid discharge pipe 210 and a vertical tube 220. One end of the liquid discharge pipe 210 extends from the side wall of the housing 130, and the other end of the liquid outlet nozzle 200 is connected to the upper end of the vertical tube 220. The liquid outlet pipe assembly 300 is movably mounted on the vertical tube 220 for vertical movement. The housing 130 positions and fixes the liquid discharge pipe 210 to achieve a fixed installation of the liquid outlet nozzle 200. The liquid discharge pipe assembly 300 remains connected during vertical movement relative to the vertical tube 220, allowing liquid to pass through the fluid channel 321 and be discharged from the liquid outlet channel 201.

[0035] See also Figure 2 and Figure 3In some embodiments of the present invention, a tapered tube 221 with a larger top and smaller bottom is provided on the inner wall of the vertical tube 220. A movable chamber 222 is defined between the tapered tube 221 and the end of the discharge tube 210 near the vertical tube 220. The movable chamber 222 contains a valve core 223 that can block or open the tapered tube 221. It should be noted that when the discharge tube assembly 300 and the piston 400 move downward, liquid enters the fluid channel 321 from the pump chamber 110 and can dislodge the valve core 223, allowing the liquid to pass through the movable chamber 222 and be discharged from the discharge channel 201, thereby preventing excessive discharge. When the discharge tube assembly 300 and the piston 400 do not move downward, the valve core 223 is blocked by gravity against the tapered tube 221, thereby preventing overflow.

[0036] See also Figures 2 to 4 In some embodiments of the present invention, the liquid outlet tube assembly 300 includes a sleeve 310 and an inner tube 320 located within the sleeve 310. The inner tube 320 is telescopically disposed within the vertical cylinder 220. The vertical cylinder 220 is located in the gap between the sleeve 310 and the inner tube 320. The piston 400 is connected to the lower end of the inner tube 320 and abuts against the lower end of the sleeve 310. The sleeve 310 and the inner tube 320 are concentrically disposed, and the gap between the sleeve 310 and the inner tube 320 is annular to allow the vertical cylinder 220 to be inserted, thereby achieving a lifting and guiding function.

[0037] See also Figure 3 and Figure 4In some embodiments of the present invention, the switch valve assembly 500 includes a valve stem 510. The upper end of the valve stem 510 is provided with a first sealing portion 520 corresponding to the channel opening 322, and the lower end of the valve stem 510 is provided with a second sealing portion 530 corresponding to the liquid suction port 120. The valve stem 510 can move to the first sealing portion 520 to open the channel opening 322 and allow the second sealing portion 530 to close the liquid suction port 120, or the valve stem 510 can move to the first sealing portion 520 to close the channel opening 322 and allow the second sealing portion 530 to open the liquid suction port 120. Specifically, the body 100 is provided with a stopper 900 at the bottom of the pump chamber 110 for the lower portion of the valve stem 510 to pass through. When the second sealing portion 530 moves upward, it can abut against the stopper 900 to limit the movement range of the valve stem 510. The internal channel of the inner tube 320 constitutes the above-mentioned fluid channel 321. When the pressing member 600 drives the liquid outlet tube group 300 and the piston 400 to move downward together, the space of the pump chamber 110 shrinks and the pressure increases. The valve stem 510 moves downward a certain distance to allow the second sealing part 530 to close the liquid suction port 120. At the same time, the channel opening 322 moves relative to the first sealing part 520 to open, and the liquid can enter the fluid channel 321 from the pump chamber 110. When the liquid outlet tube group 300 and the switch valve assembly 500 of this structure are matched, the discharge pressure is relatively small, that is, the liquid can be discharged smoothly by gently pressing the liquid outlet tube group 300. When the liquid outlet tube assembly 300 and the piston 400 return to their original position and move upward together, the space in the pump chamber 110 expands, the pressure decreases, and the valve stem 510 moves upward a certain distance so that the second sealing portion 530 opens the liquid suction port 120. At the same time, the first sealing portion 520 is sealed at the channel opening 322, and the liquid can enter the pump chamber 110 from the bottle body through the liquid suction port 120.

[0038] See also Figure 4 and Figure 5 In some embodiments of the present invention, a limiting sleeve 800 is provided within the housing 130 and is sleeved on the exterior of the liquid outlet tube assembly 300. The limiting sleeve 800 is rotatable relative to the liquid outlet tube assembly 300. A vertical guide hole 810 extending downward from the upper end of the limiting sleeve 800 is provided on the sidewall of the limiting sleeve 800. A guide post 314 is provided on the outer peripheral wall of the liquid outlet tube assembly 300, which can abut against the upper end of the limiting sleeve 800 or enter into the vertical guide hole 810. It should be noted that when transporting or storing the press pump, the limiting sleeve 800 is first rotated until the vertical guide hole and the guide post 314 are misaligned. At this time, the guide post 314 abuts against the upper end surface of the limiting sleeve 800, and the pressing member 600 cannot move downward. When the press pump needs to be used normally, first rotate the limiting sleeve 800 until the vertical guide hole is aligned with the guide column 314. At this time, press the pressing member 600, and the guide column 314 moves up and down along the vertical guide hole, and the liquid outlet tube assembly 300 can be freely raised and lowered.

[0039] The technical features of the above embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0040] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A press pump with accurate discharge direction, characterized in that: include: A main body (100), wherein a pump cavity (110) is provided inside the main body (100), and a liquid suction port (120) is provided at the bottom of the pump cavity (110); A liquid outlet nozzle (200) is fixedly mounted on the body (100), and a liquid outlet channel (201) is provided inside the liquid outlet nozzle (200); a liquid outlet pipe assembly (300) movably disposed within the pump chamber (110) and capable of rising and falling relative to the liquid outlet nozzle (200); the liquid outlet pipe assembly (300) being connected to a piston (400) abutting against the inner peripheral wall of the pump chamber (110); a fluid channel (321) communicating with the liquid outlet channel (201) being provided within the liquid outlet pipe assembly (300); and a channel opening (322) for connecting the pump chamber (110) and the fluid channel (321); a switch valve assembly (500), movably disposed within the body (100), and used to control the on / off of the liquid suction port (120) and the channel port (322); A pressing member (600) is movably provided on the body (100) and contacts the upper portion of the liquid outlet pipe assembly (300), and is used to drive the liquid outlet pipe assembly (300) to move downward so that the switch valve assembly (500) opens the channel port (322) and closes the liquid suction port (120); The pressing member (600) is a lever with one end rotatably mounted on the body (100); the lever is provided with a pushing portion (610) capable of abutting against the upper portion of the liquid outlet tube assembly (300); the distance between the other end of the lever and the pushing portion (610) is greater than the distance between the end of the lever rotatably mounted on the body (100) and the pushing portion (610); the pushing portion (610) is provided with a circular arc groove (620) with an opening facing downwards; the upper end of the liquid outlet tube assembly (300) is provided with a circular arc convex portion (311) matching the circular arc groove (620); the upper end of the liquid outlet tube assembly (300) is provided with two oppositely arranged A side ear portion (312), the arc convex portion (311) is provided on the side ear portion (312), the side ear portion (312) is provided with a mounting through hole (313) along the radial direction of the liquid outlet tube group (300), an arc-shaped plastic strip (700) is provided between the main body (100) and the side ear portion (312), one end of the arc-shaped plastic strip (700) is provided with a plug-in column portion (710) inserted into the mounting through hole (313), and the other end of the arc-shaped plastic strip (700) elastically abuts against the main body (100); a cover shell (130) is provided on the upper part of the main body (100), and the cover shell (130) has a receiving cavity.

2. A press pump with accurate discharge direction according to claim 1, characterized in that: The upper part and the side of the accommodating chamber are both provided with openings. The lever is plate-shaped. One end of the lever is rotatably arranged on the cover (130) and is located within the accommodating chamber. The other end of the lever extends along the side opening of the accommodating chamber. The cover (130) is provided with a downwardly bent handle (140) below the side opening of the accommodating chamber.

3. A press pump with accurate liquid discharge direction according to claim 2, characterized in that: The liquid outlet nozzle (200) includes a liquid discharge pipe (210) and a vertical cylinder (220). One end of the liquid discharge pipe (210) extends from the side wall of the cover shell (130), and the other end of the liquid outlet nozzle (200) is connected to the upper end of the vertical cylinder (220). The liquid outlet pipe assembly (300) is movably arranged on the vertical cylinder (220) to move up and down.

4. A press pump with accurate liquid discharge direction according to claim 3, characterized in that: A tapered cylinder (221) having a larger upper portion and a smaller lower portion is provided on the inner wall of the vertical cylinder (220). An active cavity (222) is defined between the tapered cylinder (221) and an end of the liquid discharge pipe (210) close to the vertical cylinder (220). A valve core (223) capable of closing or opening the tapered cylinder (221) is housed in the active cavity (222).

5. The press pump with accurate liquid discharge direction according to claim 3, characterized in that: The liquid outlet pipe assembly (300) comprises a sleeve (310) and an inner tube (320) located inside the sleeve (310); the inner tube (320) is telescopically arranged in the vertical cylinder (220); the vertical cylinder (220) is located in the gap between the sleeve (310) and the inner tube (320); the piston (400) is connected to the lower end of the inner tube (320) and abuts against the lower end of the sleeve (310).

6. The press pump with accurate liquid discharge direction according to claim 1, characterized in that: The switch valve assembly (500) includes a valve stem (510), wherein the upper end of the valve stem (510) is provided with a first sealing portion (520) corresponding to the channel opening (322), and the lower end of the valve stem (510) is provided with a second sealing portion (530) corresponding to the liquid suction port (120), and the valve stem (510) can move to the first sealing portion (520) to open the channel opening (322) and enable the second sealing portion (530) to close the liquid suction port (120), or the valve stem (510) can move to the first sealing portion (520) to close the channel opening (322) and enable the second sealing portion (530) to open the liquid suction port (120).

7. The press pump with accurate liquid discharge direction according to claim 1, characterized in that: The body (100) is provided with a limiting sleeve (800) which is sleeved on the outside of the liquid outlet pipe group (300). The limiting sleeve (800) can rotate relative to the liquid outlet pipe group (300). The side wall of the limiting sleeve (800) is provided with a vertical guide hole (810) extending downward from the upper end of the limiting sleeve (800). The outer peripheral wall of the liquid outlet pipe group (300) is provided with a guide column (314) which can abut against the upper end of the limiting sleeve (800) or enter into the vertical guide hole (810).

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