Emulsion pump with water inflow prevention mechanism

Abstract

The invention relates to the technical field of emulsion pumps, and discloses an emulsion pump with a water inflow prevention mechanism, which comprises a pressure head and a pump shell, a pump rod is inserted between the pressure head and the pump shell, the outer wall of the pump rod is movably sleeved with a spring, the bottom of the pump shell is inserted with a first liquid guide pipe, and the outer wall of the pump shell is provided with a bottle locking cap. A pump chamber is arranged in the pump shell, a liquid suction channel is formed in the pump chamber, and the pump rod and the first liquid guide pipe are both communicated with the pump chamber. The protective sleeve is used for protecting the pressure head and the pump shell, so that sewage cannot easily enter the pump shell and a bottle, the protective shell is pushed to drive the hinge plate to rotate around the hinge point, the protective shell covers the pressure head and the pump shell, the pressure head and the pump shell are further protected, the waterproof performance of the emulsion pump is improved, and the service life of the emulsion pump is prolonged. The emulsion is prevented from being polluted by sewage.

Description

Technical Field

[0001] The present invention relates to the technical field of lotion pumps, in particular to a lotion pump with a water inlet prevention mechanism. Background Art

[0002] Lotion pumps have been widely used in daily chemical and pharmaceutical industries due to their exquisite design and convenient use. Traditional lotion pumps generally include a pressure head, a nozzle, a pump body, etc. When the pressure head is pressed, the liquid is ejected from the nozzle through the pressure head, and the pressure head is released and reset under the action of a spring. However, the existing lotion pumps must have an air circulation channel on the pump body because they need to keep the air pressure in the bottle and the atmospheric pressure balanced to work properly. As a result, water will enter the bottle from the air flow channel during daily use of the lotion pump, contaminating the lotion in the bottle. Therefore, a lotion pump with a water ingress prevention mechanism is proposed to solve the above-mentioned problem. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a lotion pump with a water ingress prevention mechanism in view of the above-mentioned deficiencies in the prior art.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a lotion pump with a water inlet prevention mechanism, comprising a pressure head and a pump housing, a pump rod is inserted between the pressure head and the pump housing, a spring is provided on the outer wall movable sleeve of the pump rod, a first liquid inlet tube is inserted at the bottom of the pump housing, a bottle lock cap is provided on the outer wall of the pump housing, a pump chamber is provided in the pump housing, a liquid suction channel is provided in the pump chamber, the pump rod and the first liquid inlet tube are both connected to the pump chamber, a piston is connected to the bottom of the pump rod, and the piston is slidably connected to the liquid suction channel, a discharge channel is provided inside the pump rod, and is connected to the liquid outlet of the pressure head, a protective sleeve is fixedly connected to the bottom of the pressure head, and the inner wall of the protective sleeve is slidably connected to the upper part of the outer wall of the pump housing, and a protective mechanism is provided on the bottle lock cap; The protective mechanism includes: a connecting ring, which is fixedly connected to the top of the bottle lock cap, a connecting plate is fixedly connected to the outer wall of the connecting ring, a hinge groove is opened on the right side of the connecting plate, a hinge plate is hinged in the hinge groove, and a protective shell is fixedly connected to the right side of the hinge plate.

[0005] Preferably, a sealing mechanism and a clamping mechanism are provided between the pump housing and the bottle lock cover, the sealing mechanism comprises: an upper sealing plate and a fixing ring, the upper sealing plate is fixedly connected to the top inner wall of the bottle lock cover, the fixing ring is fixedly sleeved on the outer wall of the pump housing, the top of the fixing ring is fixedly connected to a lower sealing plate, the top of the lower sealing plate is fixedly connected to a sealing gasket, a slot is provided at the bottom of the upper sealing plate, and the lower sealing plate and the sealing gasket are both inserted into the slot.

[0006] Preferably, the clamping mechanism comprises: a plastic spring piece and a wedge-shaped clamping block, the plastic spring piece is fixedly connected to the top inner wall of the bottle lock cover, the wedge-shaped clamping block is fixedly connected to the outer wall of the fixing ring, and the wedge-shaped clamping block is clamped with the plastic spring piece.

[0007] Preferably, a slot is provided on the outer wall of the plastic spring, and the wedge-shaped block is snapped into the slot.

[0008] Preferably, there are four groups of the clamping mechanisms, and the four groups of the clamping mechanisms are equidistantly arranged on the outer wall of the fixing ring.

[0009] Preferably, an upper locking ring is provided on the fixed sleeve above the outer wall of the first drainage tube, a lower locking ring is provided on the fixed sleeve below the outer wall of the first drainage tube, a sliding sleeve is provided on the movable sleeve of the outer wall of the first drainage tube, and the second drainage tube is fixedly connected to the bottom of the sliding sleeve.

[0010] Preferably, the inner wall of the sliding sleeve is provided with an internal thread, and the outer walls of the upper locking ring and the lower locking ring are both provided with external threads that match the sliding sleeve.

[0011] Preferably, a first sealing ring is provided on the upper fixed sleeve of the outer wall of the upper locking ring, and a second sealing ring is provided on the lower fixed sleeve of the outer wall of the lower locking ring.

[0012] The present invention adopts the above technical solution to bring the following beneficial effects: 1. The lotion pump with a water ingress prevention mechanism uses a protective sleeve to protect the pressure head and the pump housing, so that sewage will not easily enter the pump housing and the bottle. The protective sleeve is pushed to drive the hinge plate to rotate around the hinge point, so that the protective sleeve covers the pressure head and the pump housing, further protecting the pressure head and the pump housing, improving the waterproof performance of the lotion pump, and preventing the lotion from being contaminated by sewage.

[0013] 2. The lotion pump with a water ingress prevention mechanism utilizes a wedge-shaped clamping block to clamp with a plastic spring sheet, so that the wedge-shaped clamping block fixes the fixing ring and the pump housing, thereby connecting and fixing the pump housing and the bottle lock cover, and is easy to assemble and disassemble. The upper sealing plate, the lower sealing plate, and the sealing gasket are used to seal the pump housing and the bottle lock cover to prevent sewage from entering the bottle from the gap between the pump housing and the bottle lock cover, thereby further improving the waterproof performance.

[0014] 3. The lotion pump with a water ingress prevention mechanism utilizes the sliding sleeve to slide up and down to drive the second liquid introduction tube to move, so that the second liquid introduction tube extends the first liquid introduction tube. The user can adjust the length of the liquid introduction tube according to the depth of the container and the remaining amount of liquid, ensuring that the pump body can always absorb liquid, thereby improving the applicability of the lotion pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the front structure of the present invention; Figure 2 It is a front cross-sectional view of the present invention; Figure 3 This is an appearance diagram of the pump housing in the present invention; Figure 4 for Figure 2 A magnified image of point A; Figure 5 for Figure 2 The enlarged view of point B; Figure 6 for Figure 2 Enlarged view of point C; Figure 7 for Figure 2 Enlarged view of point D.

[0016] In the figure: 1. pressure head; 2. pump housing; 3. pump rod; 4. spring; 5. first liquid introduction tube; 6. locking bottle cap; 7. sealing mechanism; 71. upper sealing plate; 72. fixing ring; 73. lower sealing plate; 74. sealing gasket; 8. clamping mechanism; 81. plastic spring; 82. wedge-shaped clamping block; 83. bayonet; 9. protective mechanism; 91. connecting ring; 92. connecting plate; 93. hinge groove; 94. hinge plate; 95. protective shell; 10. pump chamber; 11. suction channel; 12. piston; 13. discharge channel; 14. protective sleeve; 15. upper locking ring; 16. lower locking ring; 17. sliding sleeve; 18. second liquid introduction tube; 19. first sealing ring; 20. second sealing ring. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, 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 referred device or element 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.

[0019] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "setting" should be understood in a broad sense, for example, they can be fixedly connected or set, or detachably connected or set, or integrally connected or set. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0021] See also Figure 1-7 One embodiment of the present invention is: a lotion pump with a water inlet prevention mechanism, comprising a pressure head 1 and a pump housing 2, a pump rod 3 is inserted between the pressure head 1 and the pump housing 2, a spring 4 is movably sleeved on the outer wall of the pump rod 3, a first liquid inlet tube 5 is inserted at the bottom of the pump housing 2, a bottle lock cap 6 is arranged on the outer wall of the pump housing 2, a pump chamber 10 is arranged in the pump housing 2, a liquid suction channel 11 is opened in the pump chamber 10, the pump rod 3 and the first liquid inlet tube 5 are both connected to the pump chamber 10, and a piston 12 is connected to the bottom of the pump rod 3, The piston 12 is slidably connected with the suction channel 11, and a discharge channel 13 is provided inside the pump rod 3, which is connected with the liquid outlet of the pressure head 1. By pressing the pressure head 1, the pump rod 3 is driven to move, and the pump rod 3 drives the piston 12 to move along the suction channel 11 while compressing the spring 4, so that negative pressure is generated in the pump chamber 10. When the spring 4 rebounds, the pump rod 3 drives the piston 12 to move in the opposite direction. At this time, the one-way valve on the first liquid inlet pipe 5 is opened, and the liquid enters the pump chamber 10 through the first liquid inlet pipe 5. At the same time, the liquid is pressed into the discharge channel 13 of the pump rod 3 through the reciprocating motion of the piston 12, and is discharged through the discharge port of the pressure head 1. A protective sleeve 14 is fixedly connected to the bottom of the pressure head 1, and the inner wall of the protective sleeve 14 is slidably connected to the upper outer wall of the pump housing 2. The protective sleeve 14 is used to protect the pressure head 1 and the pump housing 2, so that sewage will not easily enter the pump housing 2 and the bottle. A protective mechanism 9 is provided on the bottle lock cap 6; the protective mechanism 9 includes: a connecting ring 91, which is fixedly connected to At the top of the locking bottle cap 6, the outer wall of the connecting ring 91 is fixedly connected with a connecting plate 92, a hinge groove 93 is opened on the right side of the connecting plate 92, a hinge plate 94 is hinged in the hinge groove 93, and a protective shell 95 is fixedly connected to the right side of the hinge plate 94. The hinge plate 94 is driven to rotate around the hinge point by pushing the protective shell 95, so that the protective shell 95 covers the pressure head 1 and the pump housing 2, further protecting the pressure head 1 and the pump housing 2, improving the waterproof performance of the lotion pump, and preventing the emulsion from being contaminated by sewage.

[0022] Working principle: by pressing the pressure head 1, the pump rod 3 is driven to move, and the pump rod 3 drives the piston 12 to move along the suction channel 11 while compressing the spring 4, so that negative pressure is generated in the pump chamber 10. When the spring 4 rebounds, the pump rod 3 drives the piston 12 to move in the opposite direction. At this time, the one-way valve on the first liquid inlet pipe 5 is opened, and the liquid enters the pump chamber 10 through the first liquid inlet pipe 5. At the same time, the liquid is pressed into the discharge channel 13 of the pump rod 3 through the reciprocating motion of the piston 12, and is discharged through the discharge port of the pressure head 1, thereby completing the liquid discharge. In the process of the pressure head 1 moving up and down, the pressure head 1 drives the protective sleeve 14 to slide along the outer wall of the pump housing 2, and the protective sleeve 14 is used to protect the pressure head 1 and the pump housing 2, so that sewage will not easily enter the pump housing 2 and the bottle. By pushing the protective shell 95, the hinged plate 94 is driven to rotate around the hinge point, so that the protective shell 95 covers the pressure head 1 and the pump housing 2, further protecting the pressure head 1 and the pump housing 2, and improving the waterproof performance of the lotion pump.

[0023] See also Figure 1-7 On the basis of the above embodiment, in another embodiment of the present invention, a sealing mechanism 7 and a clamping mechanism 8 are provided between the pump housing 2 and the bottle lock cover 6. The sealing mechanism 7 comprises: an upper sealing plate 71 and a fixing ring 72. The upper sealing plate 71 is fixedly connected to the top inner wall of the bottle lock cover 6. The fixing ring 72 is fixedly sleeved on the outer wall of the pump housing 2. The top of the fixing ring 72 is fixedly connected to a lower sealing plate 73. The top of the lower sealing plate 73 is fixedly connected to a sealing gasket 74. A slot is provided at the bottom of the upper sealing plate 71. The lower sealing plate 73 and the sealing gasket 74 are both inserted into the slot. The upper sealing plate 71, the lower sealing plate 73 and the sealing gasket 74 are used to seal the pump housing 2 and the bottle lock cover 6 to prevent sewage from entering the gap between the pump housing 2 and the bottle lock cover 6. The plastic spring 81 is fixedly connected to the inner wall of the top of the bottle lock cover 6, and the wedge-shaped block 82 is fixedly connected to the outer wall of the fixing ring 72, and the wedge-shaped block 82 is clamped with the plastic spring 81, and the outer wall of the plastic spring 81 is provided with a bayonet 83, and the wedge-shaped block 82 is clamped in the bayonet 83. There are four groups of the clamping mechanisms 8, and the four groups of clamping mechanisms 8 are equidistantly arranged on the outer wall of the fixing ring 72. The wedge-shaped block 82 is clamped with the plastic spring 81, so that the wedge-shaped block 82 fixes the fixing ring 72 and the pump housing 2, so that the pump housing 2 is connected and fixed to the bottle lock cover 6, and the assembly and disassembly are convenient.

[0024] Working principle: by inserting the pump casing 2 into the bottle lock cover 6 from bottom to top, the pump casing 2 drives the fixing ring 72 and the wedge-shaped block 82 to move, so that the wedge-shaped block 82 is clamped in the clamping mouth 83 of the plastic spring 81, and the wedge-shaped block 82 is clamped with the plastic spring 81, so that the wedge-shaped block 82 fixes the fixing ring 72 and the pump casing 2, so that the pump casing 2 and the bottle lock cover 6 are connected and fixed, the assembly is convenient, and the connection is stable. At the same time, the lower sealing plate 73 and the sealing gasket 74 are inserted into the slot of the upper sealing plate 71, and the upper sealing plate 71, the lower sealing plate 73, and the sealing gasket 74 are used to seal the pump casing 2 and the bottle lock cover 6 to prevent sewage from entering the bottle from the gap between the pump casing 2 and the bottle lock cover 6.

[0025] See also Figure 1-7 On the basis of the above embodiment, in another embodiment of the present invention, an upper locking ring 15 is fixedly sleeved on the upper part of the outer wall of the first liquid introduction tube 5, a lower locking ring 16 is fixedly sleeved on the lower part of the outer wall of the first liquid introduction tube 5, a sliding sleeve 17 is movably sleeved on the outer wall of the first liquid introduction tube 5, a second liquid introduction tube 18 is fixedly connected to the bottom of the sliding sleeve 17, an internal thread is provided on the inner wall of the sliding sleeve 17, and an external thread matching the sliding sleeve 17 is provided on the outer walls of the upper locking ring 15 and the lower locking ring 16, and the second liquid introduction tube 18 is driven to move by sliding the sliding sleeve 17 up and down, so that the second liquid introduction tube 18 is aligned with the first liquid introduction tube 5 can be extended, and the user can adjust the length of the liquid introduction tube according to the depth of the container and the remaining amount of liquid, so as to ensure that the pump body can always absorb the liquid, thereby improving the applicability of the lotion pump. A first sealing ring 19 is fixedly sleeved on the upper outer wall of the upper locking ring 15, and the connection between the sliding sleeve 17 and the upper locking ring 15 can be sealed by the first sealing ring 19. A second sealing ring 20 is fixedly sleeved on the lower outer wall of the lower locking ring 16, and the connection between the sliding sleeve 17 and the lower locking ring 16 can be sealed by the second sealing ring 20, so that the liquid can better enter the first liquid introduction tube 5.

[0026] Working principle: the sliding sleeve 17 slides downward and drives the second liquid introduction tube 18 to move, and then the sliding sleeve 17 is threadedly connected to the lower locking ring 16 to fix the second liquid introduction tube 18. At the same time, the second sealing ring 20 is provided to seal the connection between the sliding sleeve 17 and the lower locking ring 16, so that the liquid can better enter the first liquid introduction tube 5, so that the second liquid introduction tube 18 extends the first liquid introduction tube 5. Conversely, the sliding sleeve 17 is threadedly connected to the upper locking ring 15, and at the same time, the first sealing ring 19 is provided to seal the connection between the sliding sleeve 17 and the upper locking ring 15, so that the second liquid introduction tube 18 is stored and put on the first liquid introduction tube 5. The user can adjust the length of the liquid introduction tube according to the depth of the container and the remaining amount of liquid.

[0027] The present invention provides a lotion pump with a water inlet prevention mechanism. There are many methods and ways to implement the technical solution. The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be considered as the protection scope of the present invention. All components not specified in this embodiment can be implemented by existing technologies.

Claims

1. A lotion pump with a water ingress prevention mechanism, comprising a pressure head (1) and a pump housing (2), characterized in that: A pump rod (3) is inserted between the pressure head (1) and the pump housing (2), a spring (4) is provided on the outer wall of the pump rod (3), a first liquid introduction tube (5) is inserted at the bottom of the pump housing (2), a bottle lock cover (6) is provided on the outer wall of the pump housing (2), a pump chamber (10) is provided in the pump housing (2), a liquid suction channel (11) is provided in the pump chamber (10), the pump rod (3) and the first liquid introduction tube (5) are both connected to the pump chamber (10), a piston (12) is connected to the bottom of the pump rod (3), and the piston (12) is slidably connected to the liquid suction channel (11), a liquid discharge channel (13) is provided inside the pump rod (3), and is connected to the liquid outlet of the pressure head (1), a protective sleeve (14) is fixedly connected to the bottom of the pressure head (1), and the inner wall of the protective sleeve (14) is slidably connected to the upper part of the outer wall of the pump housing (2), and a protective mechanism (9) is provided on the bottle lock cover (6); The protective mechanism (9) comprises: a connecting ring (91), the connecting ring (91) being fixedly connected to the top of the bottle lock cover (6), a connecting plate (92) being fixedly connected to the outer wall of the connecting ring (91), a hinge groove (93) being provided on the right side of the connecting plate (92), a hinge plate (94) being hinged in the hinge groove (93), and a protective shell (95) being fixedly connected to the right side of the hinge plate (94).

2. The lotion pump with a water ingress prevention mechanism according to claim 1, characterized in that: A sealing mechanism (7) and a clamping mechanism (8) are provided between the pump housing (2) and the bottle lock cover (6). The sealing mechanism (7) comprises an upper sealing plate (71) and a fixing ring (72). The upper sealing plate (71) is fixedly connected to the inner wall of the top of the bottle lock cover (6). The fixing ring (72) is fixedly sleeved on the outer wall of the pump housing (2). The top of the fixing ring (72) is fixedly connected to a lower sealing plate (73). The top of the lower sealing plate (73) is fixedly connected to a sealing gasket (74). A slot is provided at the bottom of the upper sealing plate (71). The lower sealing plate (73) and the sealing gasket (74) are both inserted into the slot.

3. The lotion pump with a water ingress prevention mechanism according to claim 2, characterized in that: The clamping mechanism (8) comprises: a plastic spring (81) and a wedge-shaped clamping block (82); the plastic spring (81) is fixedly connected to the top inner wall of the bottle lock cover (6); the wedge-shaped clamping block (82) is fixedly connected to the outer wall of the fixing ring (72); and the wedge-shaped clamping block (82) is clamped to the plastic spring (81).

4. The lotion pump with a water ingress prevention mechanism according to claim 3, characterized in that: The outer wall of the plastic spring (81) is provided with a snap-in opening (83), and the wedge-shaped snap-in block (82) is snap-connected in the snap-in opening (83).

5. The lotion pump with a water ingress prevention mechanism according to claim 2, characterized in that: There are four groups of the clamping mechanisms (8), and the four groups of the clamping mechanisms (8) are circumferentially arranged at equal intervals on the outer wall of the fixing ring (72).

6. The lotion pump with a water ingress prevention mechanism according to claim 1, characterized in that: An upper locking ring (15) is fixedly sleeved on the upper part of the outer wall of the first liquid introduction tube (5), a lower locking ring (16) is fixedly sleeved on the lower part of the outer wall of the first liquid introduction tube (5), a sliding sleeve (17) is movable on the outer wall of the first liquid introduction tube (5), and a second liquid introduction tube (18) is fixedly connected to the bottom of the sliding sleeve (17).

7. The lotion pump with a water ingress prevention mechanism according to claim 6, characterized in that: The inner wall of the sliding sleeve (17) is provided with an internal thread, and the outer walls of the upper locking ring (15) and the lower locking ring (16) are both provided with an external thread matching the sliding sleeve (17).

8. The lotion pump with a water ingress prevention mechanism according to claim 6, characterized in that: A first sealing ring (19) is provided on the upper fixed sleeve of the outer wall of the upper locking ring (15), and a second sealing ring (20) is provided on the lower fixed sleeve of the outer wall of the lower locking ring (16).

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