Foam pump capable of being operated by one hand

Abstract

The utility model relates to a foam pump capable of being operated by one hand, and belongs to the technical field of daily chemical products. The foam pump comprises a handle, a middle cover, a pipe body, a pump core and a bottle body, the middle cover is connected with the bottle body, the pump core is located in the bottle body and connected with the middle cover, the tail end of the handle is connected to the middle cover through a hinge structure, the middle cover is provided with a liquid outlet channel and a through hole, one end of the liquid outlet channel extends outwards to form an insertion pipe, and the other end of the liquid outlet channel extends outwards to form a through hole. The two ends of the pipe body are bent in the same direction, the first end of the pipe body is nested with the insertion pipe, the other end of the liquid outlet channel extends outwards to form a liquid outlet connector, the liquid outlet connector is opposite to one end of the handle, the second end of the liquid outlet connector is communicated with the pump core through a through hole, and the pipe body is hinged to the middle of the handle. According to the scheme provided by the utility model, the handle and the middle cover are connected through the hinge structure, and the bent nesting of the pipe body and the layout of the liquid outlet channel are combined, so that stable liquid outlet can be realized through single-hand pressing, and both operation convenience and structural reliability are considered.

Description

Technical Field

[0001] This utility model relates to the field of daily chemical products technology, and in particular to a foam pump that can be operated with one hand. Background Technology

[0002] Foam pumps are common liquid dispensing devices in the daily chemical and cleaning product industries, and their ease of operation directly impacts the user experience. Traditional foam pumps mostly adopt a push-button design, requiring the user to use both hands to operate them—one hand applies pressure to press the pump head while the other hand collects the foam or liquid. However, in practical usage scenarios (such as when one-handed operation is limited or when other items need to be held simultaneously), this design has significant limitations, leading to inconvenience and reduced efficiency. Utility Model Content

[0003] To overcome the problems existing in related technologies, this utility model provides a foam pump that can be operated with one hand. The handle and the middle cover are connected by a hinge structure. Combined with the bent and nested tube body and the layout of the liquid outlet channel, the pressing and liquid receiving operations can be performed with one hand, taking into account both the convenience of operation and the reliability of the structure.

[0004] This utility model provides a foam pump that can be operated with one hand, characterized in that it includes a handle, a middle cover, a tube, a pump core, and a bottle body;

[0005] The middle cover is connected to the bottle body, and the pump core is located inside the bottle body and connected to the middle cover;

[0006] The tail end of the handle is connected to the middle cover via a hinge structure. The middle cover is provided with a liquid outlet channel and a through hole. One end of the liquid outlet channel extends outward to form a connector. Both ends of the tube are bent in the same direction, and the first end of the tube is nested in the connector. The other end of the liquid outlet channel extends outward to form a liquid outlet interface. The liquid outlet interface is opposite to one end of the handle, and the second end is connected to the pump core through the through hole. The middle part of the handle is hinged to the tube body.

[0007] In some embodiments, the first end of the handle is provided with two first extension wings symmetrically, the middle cover is provided with a support wing, the outer side of the support wing is provided with a first hinge shaft, and the first extension wing is provided with a hinge hole that mates with the first hinge shaft.

[0008] In some embodiments, the tube body includes a first right-angled double-ended pipe and a second right-angled double-ended pipe connected to each other, the first right-angled double-ended pipe communicating with the pump core, the second right-angled double-ended pipe nesting the insertion pipe, and a handle hinged to the top of the first right-angled double-ended pipe.

[0009] In some embodiments, the end of the first right-angle double-pass pipe away from the pump core is provided with a second hinge shaft, and the handle is symmetrically provided with two second extension wings. The second extension wings are provided with a recessed structure for engaging the second hinge shaft, and the cross-sectional area of ​​the second hinge shaft is smaller than the area of ​​the recessed structure.

[0010] In some embodiments, the outer periphery of the first right-angle double-through pipe is provided with a limiting rib extending axially, and the inner wall of the through hole is provided with a groove that cooperates with the limiting rib.

[0011] In some embodiments, one end of the second right-angle double-through pipe nested connector expands radially to form a sealing structure.

[0012] In some embodiments, the first right-angle double-ended pipe is connected to the second right-angle double-ended pipe by a wire.

[0013] In some embodiments, a bottle cover is also included, with openings at the bottom and one side wall of the bottle cover, the bottle cover being inserted into a middle cap, and a second end of the handle protruding from the opening in the side wall of the bottle cover.

[0014] In some embodiments, the middle cap is inserted into the bottle body.

[0015] In some embodiments, a gasket is provided at the connection between the middle cap and the bottle body.

[0016] The technical solution provided by this utility model can include the following beneficial effects:

[0017] The foam pump provided by this utility model can be operated with one hand. The handle is hinged to the middle cover and the tube body, forming a lever-type pressing structure. When the handle is pressed, one end of the tube body drives the pump core to work, while the other end slides in the insertion tube. With the layout of the liquid outlet channel, the user's thumb can press the handle to trigger the pump core to work, while the palm is below the liquid outlet to collect the foam, thus balancing ease of operation and structural reliability. Attached Figure Description

[0018] The above and other objects, features and advantages of the present invention will become more apparent from the accompanying drawings, in which like reference numerals generally represent like parts.

[0019] Figure 1 This is a cross-sectional view of a foam pump that can be operated with one hand, as shown in an embodiment of this utility model;

[0020] Figure 2 This is an explosion diagram of a foam pump that can be operated with one hand, as shown in an embodiment of this utility model;

[0021] Figure 3This is a schematic diagram showing the cooperation between the handle and the middle cover in an embodiment of this utility model;

[0022] Figure 4 This is a schematic diagram of the handle structure shown in an embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the tube structure shown in an embodiment of the present invention;

[0024] Figure 6 This is a schematic diagram of the structure of the middle cover shown in an embodiment of this utility model.

[0025] Figure label:

[0026] 1. Handle; 10. First extension wing; 100. Hinge hole; 11. Second extension wing; 110. Recessed structure;

[0027] 2. Middle cover; 20. Liquid outlet channel; 200. Insert pipe; 201. Liquid outlet interface; 21. Through hole; 22. Support wing; 220. First hinge shaft;

[0028] 3. Pipe body; 30. First right-angle double-through pipe; 300. Second hinge shaft; 301. Limiting rib; 31. Second right-angle double-through pipe;

[0029] 4. Pump core; 5. Bottle body; 6. Bottle cover; 7. Gasket. Detailed Implementation

[0030] Preferred embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the scope of the present invention to those skilled in the art.

[0031] The technical solutions of the embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0032] See Figures 1-6 This utility model proposes a foam pump that can be operated with one hand, including a handle 1, a middle cover 2, a tube 3, a pump core 4 and a bottle body 5;

[0033] The middle cover 2 is connected to the bottle body 5, and the pump core 4 is located inside the bottle body 5 and connected to the middle cover 2;

[0034] The tail end of the handle 1 is connected to the middle cover 2 by a hinge structure. The middle cover 2 is provided with a liquid outlet channel 20 and a through hole 21. One end of the liquid outlet channel 20 extends outward to form a plug tube 200. Both ends of the tube body 3 are bent in the same direction, and the first end of the tube body 3 is nested in the plug tube 200. The other end of the liquid outlet channel 20 extends outward to form a liquid outlet interface 201. The liquid outlet interface 201 is opposite to one end of the handle 1, and the second end is connected to the pump core 4 through the through hole 21. The middle part of the handle 1 is hinged to the tube body 3.

[0035] The handle 1 is a long, lever-shaped structure, with its tail end connected to the middle cover 2 via a hinge shaft, and its middle section connected to the tube body 3 via a hinge point. The middle cover 2 has a liquid outlet channel 20 and a through hole 21 inside. One end of the liquid outlet channel 20 extends vertically outward to form a connector 200, and the other end forms a liquid outlet interface 201, which protrudes from the outer surface of the bottle body. The tube body 3 forms a liquid passage through the connector 200 and the through hole 21. The first end of the tube body 3 is nested within the connector 200, and the second end connects to the pump core 4 through the through hole 21. The pump core 4 is located inside the bottle body 5, and the middle cover 2 covers the bottle opening and is inserted and fixed to the bottle body 5.

[0036] Understandably, the shape of bottle 5 can also be a prism, cylinder, or frustum, etc. Figure 2 The rectangular structure shown should not be construed as the only implementation of this utility model.

[0037] It should be noted that since the pump core 4 is not an innovative modification of this utility model, the specific structure of the pump core 4 can be referred to the existing technology.

[0038] The operating procedure for this foam pump, which can be operated with one hand, is as follows:

[0039] Initial state: Handle 1 is in the natural unpressed position, and pump core 4 is in the off state.

[0040] Press handle 1: The user presses down one end of handle 1 with one hand, and handle 1 rotates around the hinge point between the tail end and the middle cover 2, while driving the tube body 3, which is hinged in the middle, to move towards the bottle body 5.

[0041] Triggering pump core 4: When the tube body 3 moves, the first right-angle double-pass tube 30 squeezes the pump core 4, generating negative pressure inside the pump core 4, which draws the liquid in the bottle body 5 into the pump core 4. During the process of the liquid flowing through the pump core 4, it mixes with the air to form foam.

[0042] Liquid transport: The foam enters the liquid outlet channel 20 through the pipe body 3 and is finally discharged from the liquid outlet 201.

[0043] Reset process: After releasing handle 1, the internal spring of pump core 4 rebounds, driving tube body 3 and handle 1 back to their original positions, ready for the next pressing operation.

[0044] The foam pump provided by this utility model can be operated with one hand. The handle 1 is hinged to the middle cover 2 and the tube body 3 respectively, forming a lever-type pressing structure. When the handle 1 is pressed, one end of the tube body 3 drives the pump core 4 to work, and the other end slides in the insertion tube 200. With the layout of the liquid outlet channel 20, the user's thumb can press the handle 1 to trigger the pump core 4 to work, while the palm is below the liquid outlet 201 to collect the foam, which takes into account both the convenience of operation and the reliability of the structure.

[0045] The present invention further proposes that the first end of the handle 1 is symmetrically provided with two first extension wings 10, the middle cover 2 is provided with a support wing 22, the outer side of the support wing 22 is provided with a first hinge shaft 220, and the first extension wing 10 is provided with a hinge hole 100 that cooperates with the first hinge shaft 220.

[0046] The handle 1 has two first extension wings 10 symmetrically arranged at its first end. The middle cover 2 has support wings 22 on both sides. The first hinge shaft 220 is fixed on the outside of the support wings 22. The extension wings are close to the outside of the support wings 22. The extension wings have circular hinge holes 100 that match the hinge shaft. The hinge shaft passes through the extended hinge holes 100 to form a rotary pair, which restricts the lateral displacement of the handle 1.

[0047] The present invention further proposes that the pipe body 3 includes a first right-angle double-pass pipe 30 and a second right-angle double-pass pipe 31 connected to each other. The first right-angle double-pass pipe 30 is connected to the pump core 4, and the second right-angle double-pass pipe 31 is nested in the insertion pipe 200. The top of the first right-angle double-pass pipe 30 is hinged to the handle 1.

[0048] The tube body 3 consists of a first right-angled double-pass tube 30 and a second right-angled double-pass tube 31, which can be connected by a wire. The first double-pass tube is vertically connected to the pump core 4, and the second double-pass tube is horizontally nested in the connector 200. The top of the first double-pass tube is hinged to the handle 1 to form a lever fulcrum, reducing the force required to press.

[0049] This utility model further proposes that the end of the first right-angle double-through pipe 30 away from the pump core 4 is provided with a second hinge shaft 300, and the handle 1 is symmetrically provided with two second extension wings 11. The second extension wings 11 are provided with a recessed structure 110 for engaging the second hinge shaft 300. The cross-sectional area of ​​the second hinge shaft 300 is smaller than the area of ​​the recessed structure 110. The second hinge shaft 300 is engaged with the recessed structure 110 of the handle 1, which allows for rotational freedom and prevents axial displacement, ensuring smooth operation.

[0050] This utility model further proposes that the outer periphery of the first right-angle double-through pipe 30 is provided with a limiting rib 301 extending along the axial direction, and the inner sidewall of the through hole 21 is provided with a groove that cooperates with the limiting rib 301. The cooperation between the limiting rib 301 and the groove of the through hole 21 restricts the rotation of the pipe body 3, ensuring that the liquid path is always aligned, while facilitating rapid assembly and reducing production errors.

[0051] This utility model further proposes that one end of the nested insertion tube 200 of the two right-angle double-pipes expands radially to form a sealing structure, and the radial expansion structure of the nested end of the second right-angle double-pipe 31 is tightly fitted to the insertion tube 200 to prevent liquid leakage.

[0052] This utility model further proposes a wire connection between the first right-angle double-through pipe 30 and the second right-angle double-through pipe 31. The wire connection between the first and second right-angle double-through pipes 31 can improve the connection strength between the two, thereby increasing the number of uses of the pipe body 3.

[0053] This utility model further proposes a foam pump that can be operated with one hand, which also includes a bottle cover 6. The bottle cover 6 covers the middle cover 2 and the non-operating end of the handle 1 to avoid dust contamination or accidental collision damage to the internal structure. The bottom and one side wall of the bottle cover 6 are open. The bottle cover 6 is inserted and fitted with the middle cover 2. The second end of the handle 1 protrudes from the side wall opening of the bottle cover 6, which makes it easy for the user to quickly locate the pressing position. When in use, the user's thumb presses the operating end of the handle 1, with the palm facing the liquid outlet 201.

[0054] This utility model further proposes a plug-in fit between the middle cover 2 and the bottle body 5. The bottom of the middle cover 2 is provided with an annular plug-in groove, and the outer side of the bottle mouth of the bottle body 5 is provided with a corresponding plug-in flange. The plug-in fit can simplify the assembly process and eliminate the need for additional fasteners.

[0055] Correspondingly, when the bottle body 5 has a cylindrical or similar structure, the middle cap 2 and the bottle body 5 can be sealed by a threaded connection.

[0056] This utility model further proposes that a gasket 7 is provided at the connection between the middle cover 2 and the bottle body 5. The gasket 7 can be made of polyethylene. Polyethylene has a certain elasticity and can fill the tiny gap at the connection between the middle cover 2 and the bottle body 5, thus doubly ensuring the sealing of the foam pump.

[0057] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A foam pump that is single-handedly operable, characterized in that, It includes a handle (1), a middle cap (2), a tube (3), a pump core (4), and a bottle body (5); The middle cover (2) is connected to the bottle body (5), and the pump core (4) is located inside the bottle body (5) and connected to the middle cover (2); The tail end of the handle (1) is connected to the middle cover (2) by a hinge structure. The middle cover (2) is provided with a liquid outlet channel (20) and a through hole (21). One end of the liquid outlet channel (20) extends outward to form a plug pipe (200), and the other end of the liquid outlet channel (20) extends outward to form a liquid outlet interface (201). The liquid outlet interface (201) is opposite to one end of the handle (1). The two ends of the tube body (3) are bent in the same direction, and the first end of the tube body (3) is nested with the plug pipe (200), and the second end is connected to the pump core (4) through the through hole (21). The middle part of the handle (1) is hinged to the tube body (3).

2. The one-hand operable foam pump of claim 1, wherein, The first end of the handle (1) is symmetrically provided with two first extension wings (10), the middle cover (2) is provided with a support wing (22), the outer side of the support wing (22) is provided with a first hinge shaft (220), and the first extension wing (10) is provided with a hinge hole (100) that cooperates with the first hinge shaft (220).

3. The one-hand operable foam pump of claim 2, wherein, The tube body (3) includes a first right-angle double-pass tube (30) and a second right-angle double-pass tube (31) connected to each other. The first right-angle double-pass tube (30) is connected to the pump core (4). The second right-angle double-pass tube (31) is nested in the insertion tube (200). The top of the first right-angle double-pass tube (30) is hinged to a handle (1).

4. The one-hand operable foam pump of claim 3, wherein, The first right-angle double-through pipe (30) is provided with a second hinge shaft (300) at one end away from the pump core (4). The handle (1) is symmetrically provided with two second extension wings (11). The second extension wing (11) is provided with a recessed structure (110) for engaging the second hinge shaft (300). The cross-sectional area of ​​the second hinge shaft (300) is smaller than the area of ​​the recessed structure (110).

5. The one-hand operable foam pump of claim 3, wherein, The first right-angle double-through pipe (30) has a limiting rib (301) extending axially on its outer periphery, and the inner wall of the through hole (21) has a groove that cooperates with the limiting rib (301).

6. The one-hand operable foam pump of claim 3, wherein, The second right-angle double-through pipe (31) is nested in the insertion pipe (200), and one end of the insertion pipe (200) expands radially to form a sealing structure.

7. The foam pump that can be operated with one hand according to claim 3, characterized in that, The first right-angle double-through pipe (30) and the second right-angle double-through pipe (31) are connected by a wire.

8. The one-hand operable foam pump of claim 1, wherein, It also includes a bottle cover (6), with openings at the bottom and one side wall of the bottle cover (6), the bottle cover (6) being inserted into the middle cap (2), and the second end of the handle (1) protruding from the opening of the side wall of the bottle cover (6).

9. The one-hand operable foam pump of claim 1, wherein, The middle cover (2) is inserted into the bottle body (5).

10. The one-hand operable foam pump of claim 1, wherein, A gasket (7) is provided at the connection between the middle cover (2) and the bottle body (5).

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