Combined emulsion pump pressing head and emulsion pump

Abstract

The combined emulsion pump pressing head and the emulsion pump are easy to manufacture and not prone to damage. The combined emulsion pump pressing head comprises an outer pressing head, the outer pressing head is provided with a top plate, a first inner cylinder and a first outer cylinder, the first inner cylinder and the first outer cylinder extend downwards from the top plate, and the first outer cylinder extends downwards from the top plate on the peripheral side of the first inner cylinder at intervals; the inner pressing head is provided with a second inner cylinder which extends up and down and a second outer cylinder which is closer to the peripheral side than the second inner cylinder, and the outer pressing head and the inner pressing head are fixedly connected through the first inner cylinder and the second inner cylinder; one of the first outer cylinder and the second outer cylinder is arranged to be inserted into the other one and be in clearance-free fit with the other one.

Description

TECHNICAL FIELD

[0001] The utility model relates to combined emulsion pump head and emulsion pump. BACKGROUND

[0002] Many daily use and skin care products on the market are stored in containers equipped with emulsion pumps. Emulsion pumps are convenient to use, and users can pump out the liquid in the container quantitatively by pressing the head. Therefore, daily use products equipped with emulsion pumps are more popular than products equipped with ordinary caps. With increasingly fierce market competition, many manufacturers are designing unique appearance models for the head in the hope of attracting the attention of consumers from the appearance.

[0003] However, ordinary heads are only a single part, and it is difficult to achieve a complex shape that takes into account both aesthetics and convenient assembly through a mold and to demold. Currently, some manufacturers equip emulsion pumps with specific colors, and some use gold stamping, spraying, electroplating, rendering, etc. or double-color injection molding to attract the attention of consumers.

[0004] However, these processes with decorative functions often need to be outsourced, have a high loss rate, and require reliable packaging, otherwise the decorative part may be damaged during transportation, resulting in increased costs and many inconveniences. SUMMARY

[0005] The utility model is made based on the problems existing in the prior art. The purpose of the utility model is to provide a combined emulsion pump head that is easy to manufacture and not easy to damage and an emulsion pump including the combined emulsion pump head.

[0006] The first aspect of the utility model provides a combined emulsion pump head, which includes: an outer head having a top plate, a first inner cylinder extending downward from the top plate, and a first outer cylinder extending downward from the top plate with a gap on the outer periphery of the first inner cylinder; and an inner head having a second inner cylinder extending upward and downward and a second outer cylinder on the outer periphery of the second inner cylinder, the outer head and the inner head being fixedly connected by the first inner cylinder and the second inner cylinder, one of the first outer cylinder and the second outer cylinder being arranged to be inserted into the other and to be gaplessly matched with the other.

[0007] The combined emulsion pump head according to the first aspect of the utility model is composed of two parts, the outer head and the inner head, which is beneficial to mold forming, can realize unique shape design and meet the needs of users, and is not easy to be damaged compared with the head composed of separate parts. In addition, since the outer head and the inner head are fixedly connected through the first inner cylinder and the second inner cylinder, one of the first outer cylinder and the second outer cylinder is arranged to be inserted into the other and matched with the other without gap, thereby, the outer head and the inner head can be combined firmly, anti-falling and resistant to transportation. Furthermore, the first outer cylinder extends downward from the top plate at the outer circumferential side of the first inner cylinder with a gap, thereby, the shrinkage of the top plate of the outer head can be inhibited or avoided to affect the aesthetic appearance of the head.

[0008] For example, the inner head is an integral forming structure, and the outer head is an integral forming structure.

[0009] In the combined emulsion pump head, one of the first inner cylinder and the second inner cylinder is provided with a convex rib, and the other is provided with a groove, and the outer head and the inner head are fixedly connected through the convex rib and the groove. According to the above structure, the two parts are convenient to assemble, and the outer head and the inner head can be firmly fixed with a simple structure.

[0010] In the combined emulsion pump head, the outer head further has an outer wall extending downward from the outer periphery of the top plate, the inner head formed by injection molding has a first gate mark on the outer side of the second outer cylinder, and the first gate mark is shielded by the outer wall after the outer head and the inner head are assembled. According to the above structure, the aesthetic appearance of the head can be improved.

[0011] In the combined emulsion pump head, the inner head further has a liquid outlet pipe extending in a direction intersecting the up-down direction, the second inner cylinder is in liquid communication with the liquid outlet pipe, the first outer cylinder is provided with a positioning notch for positioning the liquid outlet pipe during assembly, the outer head further has a reinforcing rib extending outward from a position in the first outer cylinder above the positioning notch and connected with the lower surface of the top plate, and the outer head formed by injection molding has a second gate mark on the reinforcing rib. According to the above structure, the strength and the aesthetic appearance can be improved.

[0012] In the combined emulsion pump head, the outer head has a protruding portion protruding outward from the top plate, and the protruding portion is located above the liquid outlet pipe. According to the above structure, the aesthetic appearance of the head can be improved, and the protruding portion can protect the liquid outlet pipe.

[0013] In the combined emulsion pump head, an anti-skid strip is arranged on the upper surface of the top plate. Thus, the user can press the outer head conveniently.

[0014] Also, in the combined type emulsion pump head described above, the outer head has a protruding portion protruding obliquely upward from the top plate toward the outer periphery. Thus, the protruding portion can increase the pressing area and facilitate pressing.

[0015] The second aspect of the present application provides an emulsion pump including any of the combined type emulsion pump heads described above and a fixed portion, the head being movable relative to the fixed portion.

[0016] Also, in the emulsion pump described above, the inner head main body of the inner head has the second inner cylinder, the second outer cylinder, and the sliding cylinder, the sliding cylinder being provided at a position below the second outer cylinder at the outer periphery of the second inner cylinder with a gap, the fixed portion has an aperture into which the sliding cylinder is slidably inserted, the inner head has a flange extending from the inner head main body toward the outer periphery, and the emulsion pump further includes a clip that is insertable between the flange and the fixed portion to prevent movement of the head relative to the fixed portion. Thus, movement of the head relative to the fixed portion can be reliably prevented. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A cross-sectional view of the emulsion pump of the present application is shown.

[0018] Figure 2 An enlarged view of I portion of Figure 1 is shown.

[0019] Figure 3 A perspective view of the outer head of the combined type emulsion pump head of the present application is shown.

[0020] Figure 4 A cross-sectional view of the outer head of the combined type emulsion pump head of the present application is shown.

[0021] Figure 5 A perspective view of the outer head of the combined type emulsion pump head of the present application is shown from a different angle. Figure 3

[0022] Figure 6 A perspective view of the inner head of the combined type emulsion pump head of the present application is shown.

[0023] Figure 7 A cross-sectional view of the inner head of the combined type emulsion pump head of the present application is shown.

[0024] (SYMBOL DESCRIPTION)

[0025] 10 combined type emulsion pump head

[0026] 11 outer head

[0027] ​12 inner pressing head

[0028] 60 clip

[0029] 100 emulsion pump

[0030] 111 top plate

[0031] 112 first inner cylinder

[0032] 113 first outer cylinder

[0033] 114 outer wall

[0034] 115 extension

[0035] 116 positioning notch

[0036] 117 reinforcing rib

[0037] 121 second inner cylinder

[0038] 122 second outer cylinder

[0039] 124 sliding cylinder

[0040] 125 flange

[0041] 126 liquid outlet pipe

[0042] 1121 convex rib

[0043] 1211 concave groove

[0044] F anti-skid strip DETAILED DESCRIPTION

[0045] In order to facilitate the understanding of the present utility model, the specific embodiments of the emulsion pump of the present utility model will be described in detail below in combination with the drawings. It should be understood that the preferred embodiments shown in the drawings are merely the preferred embodiments of the present utility model, which should not be understood as limiting the scope of the present utility model. Those skilled in the art can make various obvious modifications, variations, equivalent replacements to the present utility model on the basis of the embodiments shown in the drawings, and under the premise of not being contradictory, the technical features described in the following different embodiments can be combined with each other arbitrarily, and all of these fall within the scope of the present utility model.

[0046] In the following specific description of the present utility model, the terms indicating direction and orientation such as "upper", "lower", "inner", "outer" are based on the general orientation of the emulsion pump shown in the drawings when it is in use, and it can be understood that in situations such as transportation, storage, etc., the orientation of the emulsion pump may change.

[0047] <First Embodiment>

[0048] Overall structure of emulsion pump

[0049] Figure 1 A sectional view of the present application is shown. The lotion pump 100 includes a combined lotion pump head (sometimes simply referred to as "head") 10 and a fixed portion. The head 10 is movable relative to the fixed portion by being pressed. The fixed portion is a portion which is fixedly provided relative to a container (not shown) in which the lotion pump 100 is used. The fixed portion includes a holder 20 and a cylinder 30. The holder 20 and the cylinder 30 are fixedly attached together and fastened to the container in which the lotion pump 100 is used. The head 10 is connected below with a piston rod 40 which extends into the inside of the cylinder 30 through an orifice 21 of the holder 20. The head 10 is movable together with the piston rod 40 relative to the fixed portion composed of the holder 20, the cylinder 30, etc. of the lotion pump 100 in the axial direction of the lotion pump 100. The head 10 and the piston rod 40 become movable portions of the lotion pump 100.

[0050] In addition, the lotion pump 100 includes an elastic return mechanism 50. The elastic return mechanism 50 can be, for example, a metal coil spring or a plastic spring. The elastic return mechanism 50 is supported at its upper end directly or indirectly to the piston rod 40 and at its lower end to a support provided on the inner surface of the cylinder 30 (but not limited thereto, the lower end can be directly supported to the cylinder 30). The elastic return mechanism 50 is supported between the movable portions and the fixed portion of the lotion pump 100, so that after the pressing force applied to the head 10 is removed, the elastic return mechanism 50 can return the head 10 to its upper standby position.

[0051] Combined lotion pump head

[0052] Figure 2 An enlarged view of the I portion of Figure 1 is shown. Figure 3 A perspective view of the outer head 11 of the combined lotion pump head 10 is shown. Figure 4 A sectional view of the outer head 11 is shown. Figure 5 A perspective view of the outer head 11 is shown from a different angle than Figure 3 . Figure 6 A perspective view of the inner head 12 of the combined lotion pump head 10 is shown. Figure 7 A sectional view of the inner head 12 is shown.

[0053] The combined lotion pump head 10 is made of, for example, plastic. The combined lotion pump head 10 includes an outer head 11 and an inner head 12. The outer head 11 and the inner head 12 are provided separately and fixed.

[0054] The outer head 11 is a one-piece structure. The outer head 11 is manufactured, for example, by injection molding. The outer head 11 has a top plate 111, a first inner cylinder 112, and a first outer cylinder 113. The first inner cylinder 112 and the first outer cylinder 113 each have a circular shape when viewed from above. The first inner cylinder 112 extends downward from a lower surface of the top plate 111. The first outer cylinder 113 extends downward from the top plate 111 with a gap from the outer periphery of the first inner cylinder 112 (a gap is provided between the first inner cylinder 112 and the first outer cylinder 113). For example, the lower end of the first outer cylinder 113 is lower than the lower end of the first inner cylinder 112.

[0055] Further, the outer head 11 has an outer wall 114 extending downward from the outer periphery of the top plate 111. The outer wall 114 is provided with a gap from the outer periphery of the first outer cylinder 113.

[0056] Further, the outer head 11 has a protruding portion 115 protruding outward from the top plate 111. More specifically, the protruding portion 115 protrudes obliquely upward from the outer periphery of the top plate 111. In the assembled state, the protruding portion 115 is positioned above the liquid outlet pipe 126 (when viewed from above, the position of the protruding portion 115 in the circumferential direction centered on the central axis of the inner cylinder overlaps the liquid outlet pipe 126).

[0057] A non-slip strip F can be provided on the upper surface of the top plate 111. In the illustrated example, the non-slip strip F is formed as a convex strip protruding from the upper surface of the top plate 111. However, the non-slip strip F can also be formed as a structure recessed from the upper surface of the top plate 111. Further, the number of non-slip strips F is not particularly limited and can be multiple or one.

[0058] The inner head 12 is a one-piece structure. The inner head 12 is manufactured, for example, by injection molding. The inner head 12 has an inner head main body. The inner head main body has a second inner cylinder 121 extending upward and downward, a second outer cylinder 122 on the outer periphery of the second inner cylinder, and a sliding cylinder 124. The second inner cylinder 121 and the second outer cylinder 122 each have a circular shape when viewed from above. The lower portion of the second inner cylinder 121 is fixed to the piston rod 40. The piston rod 40 is in fluid communication with the second inner cylinder 121. The piston rod 40 being in fluid communication with the second inner cylinder 121 means that the liquid in the piston rod 40 can flow into the second inner cylinder 121.

[0059] The inner pusher main body also has a ring plate 123 that protrudes from the outer circumferential surface of the second inner cylinder 121 to the outer circumferential side (in the example shown, protrudes in a direction orthogonal to the axial direction). The second outer cylinder 122 extends upward from the upper surface of the ring plate 123. In the assembled state, the upper surface of the ring plate 123 is positioned above the lower end of the outer wall 114. The second outer cylinder 122 is provided at a gap from the outer circumferential side of the second inner cylinder 121. In the example shown, in the assembled state, the second inner cylinder 121 enters the gap between the first outer cylinder 113 and the first inner cylinder 112, and the first outer cylinder 113 enters the gap between the second outer cylinder 122 and the second inner cylinder 121. For example, the upper end of the second outer cylinder 122 is positioned lower than the upper end of the second inner cylinder 121.

[0060] Although not shown in detail, the injection-molded inner pusher 12 has a first gate mark on the outer side of the second outer cylinder 122, and when the outer pusher 11 and the inner pusher 12 are assembled, the first gate mark is positioned inside the outer wall 114, and the first gate mark is blocked by the outer wall 114.

[0061] The sliding cylinder 124 is provided at a gap from the outer circumferential side of the second inner cylinder 121 at a position lower than the second outer cylinder 122. The sliding cylinder 124 extends downward from the lower surface of the ring plate 123. The aperture 21 of the fixed portion (mouthpiece 20) is provided so that the sliding cylinder 124 is slidably inserted.

[0062] In addition, the inner pusher 12 also has a flange 125 that extends from the inner pusher main body to the outer circumferential side. As shown in Figure 2 The flange 125 further extends outward from the ring plate 123 to a position on the outer circumferential side than the sliding cylinder 124.

[0063] The outer pusher 11 and the inner pusher 12 are fixedly connected by the first inner cylinder 112 and the second inner cylinder 121. A protrusion 1121 is provided on the outer circumferential surface of the first inner cylinder 112, and a recess 1211 is provided on the inner circumferential surface of the second inner cylinder 121, and the protrusion 1121 and the recess 1211 are engaged and fixed. The outer pusher 11 and the inner pusher 12 are fixedly connected by the protrusion 1121 and the recess 1211. The number of protrusions 1121 and recesses 1211 is preferably a plurality, but can also be one. In addition, instead of the protrusion 1121 and the recess 1211 described above, a recess can be provided on the outer circumferential surface of the first inner cylinder 112, and a protrusion that engages with the recess can be provided on the inner circumferential surface of the second inner cylinder 121. That is, one of the first inner cylinder 112 and the second inner cylinder 121 can be provided with a protrusion, and the other can be provided with a recess.

[0064] The first outer cylinder 113 is arranged to be inserted into the second outer cylinder 122 and to be fitted without clearance with the second outer cylinder 122. In the assembled state, the outer circumferential surface of the first outer cylinder 113 is fitted without clearance with the inner circumferential surface of the second outer cylinder 122. Alternatively, the second outer cylinder 122 can be arranged to be inserted into the first outer cylinder 113 and to be fitted without clearance with the first outer cylinder 113. That is, one of the first outer cylinder 113 and the second outer cylinder 122 can be arranged to be inserted into the other and to be fitted without clearance with the other. Thus, the outer head 11 and the inner head 12 can be more firmly combined, and are less likely to be disassembled even when being transported or dropped.

[0065] Further, the inner head 12 has a liquid outlet pipe 126 extending in a direction intersecting the up-down direction. The liquid outlet pipe 126 is in the shape of a cylinder located lower as it goes toward the outer circumferential side. The second inner cylinder 121 is in liquid communication with the liquid outlet pipe 126. The second inner cylinder 121 being in liquid communication with the liquid outlet pipe 126 means that liquid in the second inner cylinder 121 can flow into the liquid outlet pipe 126.

[0066] The first outer cylinder 113 is provided with a positioning notch 116 that positions the liquid outlet pipe 126 when assembled. The positioning notch 116 is formed in the shape of a recess upward from the lower end of the first outer cylinder 113 to avoid the liquid outlet pipe 126. In the assembled state, the positioning notch 116 can position the liquid outlet pipe 126, and thus the outer head 11 and the inner head 12 are not likely to rotate relative to each other.

[0067] The outer head 11 also has a reinforcing rib 117. The reinforcing rib 117 extends outward from a position in the first outer cylinder 113 that is higher than the positioning notch 116 and is connected to the lower surface of the top plate 111. The reinforcing rib 117 is located below the top plate 111. The reinforcing rib 117 is shielded by the top plate 111. By providing the reinforcing rib 117, the first outer cylinder 113, particularly the portion provided with the positioning notch 116, can be reinforced.

[0068] Although not shown in detail, the injection-molded outer head 11 has a second gate mark on the reinforcing rib. Thus, the second gate mark is shielded by the top plate 111. The second gate mark is hidden inside the outer head 11, ensuring the aesthetic appearance of the outer head.

[0069] Returning to Figure 1 The lotion pump 100 also includes a clip 60. The clip 60 is detachably mounted between the movable portion and the fixed portion of the lotion pump 100. The clip 60 can be inserted between the flange 125 and the fixed portion (the holder 20) to prevent movement of the head 10 relative to the fixed portion (limit downward movement of the head 10 relative to the holder 20 and the cylinder 30), for example, to prevent the product from leaking out due to accidental pressing of the head 10 during transportation.

[0070] The clip 60 contacts the outer peripheral surface of the sliding cylinder 124, for example, from the outer peripheral side. The upper end of the clip 60 is supported on the lower surface of the flange 125. The clip 60 and the flange 125 form a surface contact, and the movement of the pusher head 10 relative to the fixed portion is reliably prevented even if a large impact force is applied.

[0071] The mouthpiece 20 includes a mouthpiece body 20a that is fastened to a container that is not shown. The orifice 21 is provided on a body top plate 22 of the mouthpiece body 20a. The mouthpiece 20 is also formed with a flange 23 that extends upward from the body top plate 22 at the periphery of the orifice 21. The lower end of the clip 60 is supported on the flange 23.

[0072] The above describes an exemplary preferred structure of the present application. Other obvious modifications and changes can be made by those skilled in the art based on the above.

[0073] For example, the mouthpiece 20 shown in the drawing is of a one-piece type. Those skilled in the art will know that there are cases in which the cylinder head and the mouthpiece are formed separately in the prior art. In the case in which the cylinder head and the mouthpiece are formed separately, the flange 23 described above is formed on the cylinder head.

[0074] Further, the drawing shows a case in which the sliding cylinder 124 of the pusher head 10 is located inside the orifice 21 of the mouthpiece 20. Those skilled in the art will know that the structure of the present application can also be applied in a case in which the sliding cylinder 124 of the pusher head 10 is located outside the orifice 21 of the mouthpiece 20.

[0075] The above describes the specific embodiments of the present application in detail with reference to the drawings. However, it is understood that the above description does not limit the present application in any form, and the technical features in each embodiment can be combined in any manner to form new embodiments. Further, those skilled in the art can make various other modifications and changes to the present application as needed after understanding the above specific embodiments. These do not deviate from the essential content of the present application.

Claims

1. A combination lotion pump dispenser head characterized by, including: an outer push head having a top plate, a first inner cylinder extending downward from the top plate, and a first outer cylinder extending downward from the top plate with a gap on the outer periphery side of the first inner cylinder; and an inner push head having a second inner cylinder extending upward and downward, and a second outer cylinder on the outer periphery side of the second inner cylinder, the outer push head and the inner push head being fixedly connected by the first inner cylinder and the second inner cylinder, one of the first outer cylinder and the second outer cylinder being configured to be inserted into the other and to be fitted with no gap to the other.

2. The combined lotion pump push head according to claim 1, wherein the inner push head is a one-piece structure, the outer push head is a one-piece structure.

3. The combined lotion pump push head according to claim 1, wherein one of the first inner cylinder and the second inner cylinder is provided with a protrusion, and the other is provided with a recess, and the outer push head and the inner push head are fixedly connected by the protrusion and the recess.

4. The combined lotion pump push head according to claim 1, wherein the outer push head further has an outer wall extending downward from the outer periphery of the top plate, the injection-molded inner push head has a first gate mark on the outer side of the second outer cylinder, the first gate mark is hidden by the outer wall when the outer push head and the inner push head are assembled.

5. The combined lotion pump push head according to claim 1, wherein the inner push head further has a liquid outlet pipe extending in a direction intersecting the upward and downward directions, the second inner cylinder is in liquid communication with the liquid outlet pipe, the first outer cylinder is provided with a positioning notch for positioning the liquid outlet pipe when assembled, the outer push head further has a reinforcing rib extending outward from a position in the first outer cylinder above the positioning notch and connected to the lower surface of the top plate, the injection-molded outer push head has a second gate mark on the reinforcing rib.

6. The combined lotion pump push head according to claim 5, wherein the outer push head has a protruding portion protruding outward from the top plate, the protruding portion is located above the liquid outlet pipe.

7. The combined lotion pump push head according to claim 1, wherein an anti-slip strip is provided on the upper surface of the top plate.

8. The combined lotion pump push head according to claim 1, wherein the outer push head has a protruding portion protruding obliquely upward from the outer periphery side of the top plate.

9. A pump for dispensing a liquid, comprising: The combined lotion pump push head according to any one of claims 1 to 8 and a fixed portion, the combined lotion pump push head being movable relative to the fixed portion.

10. The lotion pump according to claim 9, wherein the inner push head main body of the inner push head has the second inner cylinder, the second outer cylinder, and a sliding cylinder provided with a gap on the outer periphery side of the second inner cylinder at a position below the second outer cylinder, the fixed portion has a hole into which the sliding cylinder is slidably inserted, the inner push head has a flange extending outward from the inner push head main body, the outer push head has a reinforcing rib extending outward from the first outer cylinder, and the injection-molded outer push head has a second gate mark on the reinforcing rib. The emulsion pump further comprises a clip capable of being inserted between the flange and the fixed portion to prevent movement of the combined emulsion pump head relative to the fixed portion.

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