Quick pumping assembly and press sprayer

Abstract

A quick pumping assembly and a press sprayer. The quick pumping assembly comprises a hollow pumping cylinder, wherein a piston of the pumping cylinder is connected to a hollow pumping pressure member, and the pumping pressure member is in communication with a nozzle. By providing three restriction orifices in the assembly, the pumping efficiency can be properly ensured. A second flow guide pipe is connected to the nozzle, the arrangement of two restriction orifices on the second flow guide pipe can properly guarantee that a fluid pumped to the nozzle does not flow back, and the fluid can be ejected from the nozzle by pressing once in the next use, which is convenient and rapid, so that the comfort level of a user is improved, and the communication between the pumping assembly and the outside atmosphere is also cut off quickly.

Description

A quick pumping assembly and a pressurized spray head TECHNICAL FIELD

[0001] The utility model relates to a pump pressurized spray head field, especially a quick pumping assembly. BACKGROUND

[0002] The pressurized spray head is a common spraying device, usually used in the pressurized sprayer, and the fluid in the container is sprayed in the form of a thin stream, mist or foam by pressing to generate pressure. This spray head design is simple, easy to operate, and suitable for cleaning, disinfection, household gardening, spraying and other occasions.

[0003] However, the pumping efficiency of the pumping assembly in the existing spray head is low, and due to the insufficient sealing during pumping, the fluid often needs to be pumped to the nozzle and sprayed by pressing several times. Especially near the nozzle, the fluid needs to overcome more gravitational potential energy because the position of the nozzle is higher and connected to the outside atmosphere. The fluid at the nozzle is more likely to fall back, and the fluid needs to be pumped several times again to reach the nozzle, which undoubtedly brings a bad user experience to the user.

[0004] UTILITY MODEL CONTENTS

[0005] In order to overcome the above problems, the utility model provides a quick pumping assembly, and the utility model solves the technical problems thereof by adopting the technical scheme of:

[0006] A quick pumping assembly, comprising a hollow pumping cylinder, a pumping cylinder piston connected with a hollow pump pressure piece, and the pump pressure piece being connected with a nozzle; the pumping cylinder comprises a cylinder body and a first flow guide pipe, the cylinder body is provided with a gas exchange hole, the first flow guide pipe is provided with a first flow limiting opening and a first flow limiting piece, and the first flow limiting piece is movable to open / seal the first flow limiting opening; the first flow guide pipe is further provided with a limiting piece, and the first flow limiting piece is located between the limiting piece and the first flow limiting opening; the pump pressure piece comprises a piston head and a second flow guide pipe, a reset elastic piece is arranged between the piston head and the bottom of the cylinder body, and the piston head moves as a piston in the cylinder body; the second flow guide pipe is connected with the nozzle, and the second flow guide pipe is provided with a second flow limiting opening and a second flow limiting piece, and the second flow limiting piece is movable to open / seal the second flow limiting opening; the second flow guide pipe is further provided with an upper valve seat, and the second flow limiting piece is located between the upper valve seat and the second flow limiting opening; the upper valve seat is hollow and is in interference fit with the inner wall of the second flow guide pipe, the upper valve seat is provided with a limiting claw and a third flow limiting opening, a third flow limiting piece is accommodated between the limiting claw and the third flow limiting opening, and the third flow limiting piece moves between the limiting claw and the third flow limiting opening to open / seal the third flow limiting opening.

[0007] Further, the first flow limiting opening is in the shape of a circular truncated cone funnel with a small opening downward, the first flow limiting piece is in the shape of a ball and located above the first flow limiting opening, and the diameter of the first flow limiting piece is greater than the diameter of the small opening of the first flow limiting opening to seal the first flow limiting opening.

[0008] Further, the limiting member is a hollow tube, the reset elastic member is sleeved on the limiting member, and the side wall of the limiting member is provided with a first opening extending to the bottom for fluid guiding; the inner diameter of the bottom of the limiting member is smaller than the diameter of the first flow limiting member, so that the first flow limiting member is limited to move between the bottom of the limiting member and the first flow limiting opening.

[0009] Further, the second flow limiting opening is in the shape of an inverted circular truncated cone funnel with a small opening upward, and the second flow limiting member is in the shape of a cone and located above the second flow limiting opening, and the upper end of the cone has a diameter larger than that of the small opening of the second flow limiting opening to seal the second flow limiting opening.

[0010] Further, the bottom of the second flow limiting member extends downward to connect a connecting rod, and the other end of the connecting rod is connected with a limiting head which is sleeved in the limiting member and can slide along the limiting member.

[0011] Further, the third flow limiting opening is in the shape of a circular truncated cone funnel with a small opening downward, and the third flow limiting member is in the shape of a ball and located above the third flow limiting opening, and the diameter of the third flow limiting member is larger than that of the small opening of the third flow limiting opening to seal the third flow limiting opening.

[0012] Further, the side wall of the upper valve seat is provided with a second opening extending to the bottom for fluid guiding, and the second opening is located below the third flow limiting opening.

[0013] A pressing nozzle comprises a holding handle, a pressing plate and the above-mentioned quick pumping assembly, the holding handle is buckled with the pumping cylinder, the pressing plate is hinged with the holding handle, and the bottom of the pressing plate abuts against the upper side of the nozzle to press the nozzle.

[0014] Further, the outer wall of the pumping cylinder is sleeved with a connecting cover to detachably connect the container bottle; the lower end of the first flow guide pipe is further connected with a guide pipe which extends to the bottom of the container bottle.

[0015] Further, the pressing nozzle further comprises a safety clip which is detachably arranged below the pressing plate to limit the pressing plate from pressing the nozzle.

[0016] The beneficial effects of the utility model are as follows:

[0017] The pumping assembly can well guarantee the pumping efficiency by arranging three flow limiting openings, the second flow guide pipe is connected with the nozzle, and the arrangement of two flow limiting openings on the second flow guide pipe can well ensure that the fluid pumped to the nozzle will not backflow, and the fluid can be sprayed out of the nozzle by pressing once next time, which is convenient and fast and improves the use comfort of the user. BRIEF DESCRIPTION OF DRAWINGS

[0018] The utility model will be further described below in combination with the drawings and specific embodiments, wherein:

[0019] Fig. 1 is a sectional view of the pumping assembly;

[0020] Fig. 2 is a cross-sectional exploded view of the pump suction assembly;

[0021] Fig. 3 is a cross-sectional view of the upper valve seat;

[0022] Fig. 4 is a perspective view of the pressurized nozzle;

[0023] Fig. 5 is a cross-sectional view of the pressurized nozzle.

[0024] Figure number mark: 100, pump suction cylinder; 101, cylinder body; 102, first flow guide pipe; 103, air exchange hole; 104, first flow limiting port; 105, first flow limiting piece; 106, limiting piece; 107, first opening; 108, snap ring; 109, guide pipe 200, pump pressure piece; 201, piston head; 202, second flow guide pipe; 203, reset elastic piece; 204, second flow limiting port; 205, second flow limiting piece; 206, connecting rod; 207, limiting head; 300, nozzle; 400, upper valve seat; 401, limiting claw; 402, third flow limiting port; 403, third flow limiting piece; 404, second opening; 500, holding handle; 600, pressing plate; 700, connecting cover; 800, safety clamp. DETAILED DESCRIPTION

[0025] In order to better understand the purpose, structure and function of the utility model, the specific embodiments of the utility model "a quick pump suction assembly and a pressurized nozzle" are described in further detail below in combination with the drawings.

[0026] Referring to Figs. 1-3, in the present embodiment, the pumping assembly comprises a hollow pumping cylinder 100, a hollow pumping piece 200 is connected to the pumping cylinder 100 through a piston, the pumping piece 200 is connected to a nozzle 300, the pumping cylinder 100 comprises a cylinder body 101 and a first flow guide pipe 102, the cylinder body 101 is provided with a gas exchange hole 103 connected to the outside for gas exchange, the first flow guide pipe 102 is provided with a first flow limiting opening 104 and a first flow limiting piece 105, the first flow limiting piece 105 moves away from the first flow limiting opening 104 under the impact of fluid, when the pumping ends, the first flow limiting piece 105 quickly abuts and seals the first flow limiting opening 104 due to its own gravity and the backflow of part of the fluid, preventing the fluid from flowing back from the first flow limiting opening 104; the first flow guide pipe 102 is further provided with a limiting piece 106, and the first flow limiting piece 105 is located between the limiting piece 106 and the first flow limiting opening 104, so as to prevent the first flow limiting piece 105 from moving too far away from the first flow limiting opening 104 during pumping and failing to timely fall back to seal the first flow limiting opening 104. The pumping piece 200 comprises a piston head 201 and a second flow guide pipe 202, the piston head 201 and the bottom of the cylinder body 101 are provided with a reset elastic piece 203, and the piston head 201 moves as a piston in the cylinder body 101; the second flow guide pipe 202 is connected to the nozzle 300, and the second flow guide pipe 202 is provided with a second flow limiting opening 204 and a second flow limiting piece 205, the second flow limiting piece 205 can move away from the second flow limiting opening 204 or timely fall back to abut and seal the second flow limiting opening 204, preventing the fluid from flowing back from the second flow limiting opening 204; the second flow guide pipe 202 is further provided with an upper valve seat 400, and the second flow limiting piece 205 is located between the upper valve seat 400 and the second flow limiting opening 204, preventing the second flow limiting piece 205 from moving too far away and failing to timely fall back to seal the second flow limiting opening 204. The upper valve seat 400 is hollow and is in interference fit with the inner wall of the second flow guide pipe 202, the upper end of the upper valve seat 400 is provided with a limiting claw 401 extending along the shaft center and a third flow limiting opening 402, a third flow limiting piece 403 is accommodated between the limiting claw 401 and the third flow limiting opening 402, and the third flow limiting piece 403 moves between the limiting claw 401 and the third flow limiting opening 402 to open / seal the third flow limiting opening 402. The present pumping assembly can well ensure the pumping efficiency by providing three flow limiting openings, the second flow guide pipe 202 is connected to the nozzle 300, and the two flow limiting openings provided on the second flow guide pipe 202 can well ensure that the fluid pumped to the nozzle 300 will not flow back, and the fluid can be sprayed out of the nozzle 300 by pressing once next time, which is convenient and fast and improves the use comfort of the user.

[0027] Further referring to FIG. 1 and FIG. 2, in the embodiment, the first flow-limiting port 104 is a circular truncated-cone funnel with a small opening facing downward, and the first flow-limiting member 105 is a sphere located above the first flow-limiting port 104. The diameter of the first flow-limiting member 105 is larger than the diameter of the small opening of the first flow-limiting port 104. The spherical first flow-limiting member 105 can well adhere to and seal the circular truncated-cone first flow-limiting port 104 from any direction, thus increasing the sealing reliability.

[0028] More specifically, in the embodiment, the limiting member 106 is a hollow tube, and the reset elastic member 203, preferably a spring, is sleeved on the limiting member 106 to prevent the reset elastic member 203 from being deviated when the pump piston moves, thus causing the pumping structure to be unstable. The sidewall of the limiting member 106 is provided with a plurality of first openings 107 extending to the bottom, through which the fluid flows from the first flow guide pipe 102 into the cylinder 101 to prevent the first flow-limiting member 105 from being stuck to the bottom of the limiting member 106 and causing blockage. The inner diameter of the bottom of the limiting member 106 is smaller than the diameter of the first flow-limiting member 105 to limit the movement of the first flow-limiting member 105 between the bottom of the limiting member 106 and the first flow-limiting port 104, thus preventing the first flow-limiting member 105 from moving too far away from the first flow-limiting port 104 and failing to timely fall to seal the first flow-limiting port 104.

[0029] Further referring to FIG. 1 and FIG. 2, in the embodiment, the second flow-limiting port 204 is an inverted circular truncated-cone funnel with a small opening facing upward. When pumping fluid, the fluid flows from the large opening end of the lower end of the second flow-limiting port 204 to the small opening end of the upper end, thus enhancing the impact force of the fluid and improving the efficiency of the fluid flowing upward through the second flow-limiting port 204. The second flow-limiting member 205 is a cone located above the second flow-limiting port 204. The upper end of the cone has a diameter larger than the diameter of the small opening of the second flow-limiting port 204, and the conical surface can adhere to the second flow-limiting port 204 to seal the second flow-limiting port 204. Meanwhile, the bottom of the cone extends downward to a connecting rod 206, and the other end of the connecting rod 206 is connected to a limiting head 207. The limiting head 207 is arranged in the limiting member 106 and can slide up and down along the limiting member 106 to limit the movement stroke of the second flow-limiting member 205 and ensure that the conical surface of the second flow-limiting member 205 can always abut and seal the second flow-limiting port 204 when falling back. The connecting rod 206 connects the pumping cylinder 100 and the pump-pressing member 200, thus further increasing the stability of the pumping fluid when the pump-pressing member 200 moves relative to the piston of the pumping cylinder 100.

[0030] Further referring to Fig. 3, in the embodiment, the third flow-limiting port 402 is in the shape of a circular truncated-cone funnel with the small opening downward, and the third flow-limiting member 403 is in the shape of a ball and is located above the third flow-limiting port 402. The diameter of the third flow-limiting member 403 is greater than the diameter of the small opening of the third flow-limiting port 402. In this way, no matter from which direction the third flow-limiting member 403 falls to the third flow-limiting port 402, it can well fit and seal the third flow-limiting port 402. At the same time, the sidewall of the upper valve seat 400 is provided with a second opening 404 extending to the bottom, and the second opening 404 is located below the third flow-limiting port 402. Fluid can enter the upper valve seat 400 from the second opening 404 of the sidewall of the upper valve seat 400 and then pass through the third flow-limiting port 402, and does not necessarily have to enter the upper valve seat 400 only through the bottom of the upper valve seat 400, preventing the second flow-limiting member 205 from being stuck to the bottom of the upper valve seat 400 when ascending.

[0031] It should be noted that in the embodiment, the design precision of the upper valve seat 400 is higher, and the distance from the limiting claw 401 to the third flow-limiting port 402 is designed more finely, that is, it can ensure that the fluid can quickly ascend through the upper valve seat 400, and it can also ensure that the third flow-limiting member 403 can quickly fall to the third flow-limiting port 402 and completely seal the third flow-limiting port 402. The communication between the pump suction assembly and the outside atmosphere is quickly cut off, the pressure difference is maintained, and the liquid suction and pumping speed is faster and the effect is more stable.

[0032] Referring to Fig. 4 and Fig. 5, a pressurized nozzle, in the embodiment, the nozzle includes a holding handle 500, a pressing plate 600 and the above-mentioned quick pump suction assembly. The holding handle 500 is buckled with the pump suction cylinder 100, and the pressing plate 600 is hinged with the holding handle 500 and abuts against the upper part of the nozzle 300 at the bottom of the pressing plate 600 so as to press the nozzle 300.

[0033] Further referring to Fig. 5, in the embodiment, the pump suction cylinder 100 is sleeved with a connecting cover 700 to detachably connect a container bottle (not shown). The outer wall of the pump suction cylinder 100 is circumferentially provided with a clasp ring 108, and the clasp ring 108 is buckled with the connecting cover 700. The connecting cover 700 can rotate relative to the pump suction cylinder 100 along the clasp ring 108. The inner wall of the connecting cover 700 is provided with a fastening thread, and the container bottle is threadedly connected with the connecting cover through the fastening thread. The lower end of the first flow guide pipe 102 is further connected with a guide pipe 109, and the guide pipe 109 extends to the bottom of the container bottle. It should be noted that in some embodiments, the outer wall of the connecting cover 700 can be provided with the fastening thread, and the threadedly connected manner is not limited. Of course, in other embodiments, the connecting manner of the container bottle and the connecting cover 700 is not limited to the threadedly connected manner, but can also be buckled connection, as long as it can achieve fastening and sealing detachable connection.

[0034] It should be noted that in the embodiment, the container bottle is pressure balanced with the outside atmosphere through the air exchange hole 103 on the pump suction assembly, when the pressing plate 600 is pressed or released, the pressure in the pump suction assembly changes, when the pressure in the pump suction assembly is less than the outside pressure, liquid suction action is generated, liquid is sucked from the container bottle into the pump suction cylinder 100 through the first flow limiting port 104; when the pressure in the pump suction assembly is greater than the outside pressure, liquid spraying action is generated, fluid is sprayed from the nozzle 300 through the second flow limiting port 204 and the third flow limiting port 402.

[0035] More specifically, in the embodiment, the pressing nozzle further comprises a safety clip 800, which is detachably arranged below the pressing plate 600, so as to limit the pressing plate 600 to press the nozzle 300, and prevent spraying caused by accidental touch when the nozzle is not needed to be used.

[0036] Further, in some embodiments, the front end of the nozzle 300 is detachably arranged with different types of spraying assemblies, so as to realize different spraying forms such as thin stream, mist or foam, and be suitable for different use scenarios.

[0037] It can be understood that the utility model is described through some embodiments, and those skilled in the art know that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the utility model.In addition, under the guidance of the utility model, these features and embodiments can be modified to adapt to specific conditions and materials without departing from the spirit and scope of the utility model.Therefore, the utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application belong to the scope protected by the utility model.

[0038] In the description of the utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model.In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

Claims

1. A rapid pumping assembly, characterized by, The pump suction cylinder (100) is connected with a hollow pump pressure part (200), and the pump pressure part (200) is communicated with a nozzle (300); wherein The pump suction cylinder (100) comprises a cylinder body (101) and a first flow guide pipe (102), the cylinder body (101) is provided with a gas exchange hole (103), the first flow guide pipe (102) is provided with a first flow limiting opening (104) and a first flow limiting part (105) inside, the first flow limiting part (105) is movable to open / seal the first flow limiting opening (104); the first flow guide pipe (102) is further provided with a limiting part (106), and the first flow limiting part (105) is located between the limiting part (106) and the first flow limiting opening (104); The pump pressure part (200) comprises a piston head (201) and a second flow guide pipe (202), the piston head (201) and the bottom of the cylinder body (101) are provided with a reset elastic part (203), the piston head (201) moves as a piston in the cylinder body (101); the second flow guide pipe (202) is communicated with the nozzle (300), and the second flow guide pipe (202) is provided with a second flow limiting opening (204) and a second flow limiting part (205) inside, the second flow limiting part (205) is movable to open / seal the second flow limiting opening (204); the second flow guide pipe (202) is further provided with an upper valve seat (400), and the second flow limiting part (205) is located between the upper valve seat (400) and the second flow limiting opening (204); The upper valve seat (400) is hollow and is in interference fit with the inner wall of the second flow guide pipe (202), the upper valve seat (400) is provided with a limiting claw (401) and a third flow limiting opening (402), a third flow limiting part (403) is accommodated between the limiting claw (401) and the third flow limiting opening (402), and the third flow limiting part (403) moves between the limiting claw (401) and the third flow limiting opening (402) to open / seal the third flow limiting opening (402). The first flow limiting opening (104) is in the shape of a circular truncated cone funnel with a small opening downward, the first flow limiting part (105) is in the shape of a ball and is located above the first flow limiting opening (104), and the diameter of the first flow limiting part (105) is greater than the diameter of the small opening of the first flow limiting opening (104) to seal the first flow limiting opening (104).

2. A rapid pumping assembly according to claim 1, wherein The limiting part (106) is in the shape of a hollow pipe, the reset elastic part (203) is sleeved on the limiting part (106), the side wall of the limiting part (106) is provided with a first opening (107) extending to the bottom to guide flow, and the inner diameter of the bottom of the limiting part (106) is smaller than the diameter of the first flow limiting part (105) to limit the movement of the first flow limiting part (105) between the bottom of the limiting part (106) and the first flow limiting opening (104).

3. A rapid pumping assembly according to claim 2, wherein, ​ 4. A rapid pumping assembly according to claim 3, wherein, The second flow-limiting port (204) is a small-mouthed inverted conical funnel, and the second flow-limiting member (205) is a cone-shaped and located above the second flow-limiting port (204), the upper end of the cone is larger than the diameter of the small mouth of the second flow-limiting port (204) to seal the second flow-limiting port (204).

5. A rapid pumping assembly according to claim 4, wherein, The bottom of the second flow-limiting member (205) extends downward to a connecting rod (206), the other end of the connecting rod (206) is connected to a limiting head (207), the limiting head (207) is arranged in the limiting member (106) and can slide along the limiting member (106).

6. A rapid pumping assembly according to claim 5, wherein, The third flow-limiting port (402) is a small-mouthed circular conical funnel, and the third flow-limiting member (403) is a sphere and located above the third flow-limiting port (402), the diameter of the third flow-limiting member (403) is larger than the diameter of the small mouth of the third flow-limiting port (402) to seal the third flow-limiting port (402).

7. A rapid pumping assembly according to claim 6, wherein The sidewall of the upper valve seat (400) is provided with a second opening (404) extending to the bottom to guide the flow, and the second opening (404) is located below the third flow-limiting port (402).

8. A push-on spray head characterized by, The quick pumping assembly comprises a holding handle (500), a pressing plate (600) and the quick pumping assembly of any one of claims 1-7, the holding handle (500) is snap-connected with the pumping cylinder (100), the pressing plate (600) is hinged with the holding handle (500), and the bottom of the pressing plate (600) abuts above the nozzle (300) so as to press the nozzle (300).

9. A squeeze head according to claim 8, wherein The outer wall of the pumping cylinder (100) is sleeved with a connecting cover (700) to detachably connect a container bottle; the lower end of the first flow guide pipe (102) is further connected with a guide pipe (109), and the guide pipe (109) extends to the bottom of the container bottle.

10. A squeeze head according to claim 9, wherein Further comprising a safety clip (800), which is detachably arranged below the pressing plate (600) to limit the pressing plate (600) to press the nozzle (300). Further comprising a safety clip (800), which is detachably arranged below the pressing plate (600) to limit the pressing plate (600) to press the nozzle (300).

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