CN218752400U - Emulsion pump capable of preventing tooth socket from storing water - Google Patents

Abstract

The utility model provides a prevent emulsion pump that facing retaining includes pressure head, facing and cylinder, wherein, is connected with the piston rod in the below of pressure head, is connected with the cylinder stopper on the cylinder, and the cylinder stopper still links together with the facing, and the facing cooperation is on the bottleneck of container. Wherein a drainage structure is formed on the mouthpiece, the drainage structure communicating with a space between the mouthpiece and the bottle mouth, so that water accumulated on the mouthpiece is discharged from the space between the mouthpiece and the bottle mouth to the outside of the container. The emulsion pump can guide water to a space between the tooth socket and the bottle mouth, and prevents the water from flowing into a container from a gap between the piston rod and the cylinder plug, thereby preventing the product in the container from being polluted.

Description

Emulsion pump capable of preventing tooth socket from storing water

Technical Field

The utility model relates to an emulsion pump, it is arranged in coming out liquid, the semi-liquid product pump sending in the container for use, especially relates to an emulsion pump that can prevent the tooth socket retaining.

Background

In the field of daily chemical products, products such as hand sanitizers, body washes, shampoos, conditioners, etc. are generally filled in containers such as bottles, on which a lotion pump is mounted, and the products are pumped out for use by pressing the lotion pump. Problems are found in the use of emulsion pumps, such as the creation of negative pressure in the container after each product pump-out, and if no external air is added to the container, which is usually made of plastic, collapses, and as the negative pressure gradually rises, it eventually becomes difficult to continue pumping product out of the container.

In order to solve the problem that the container is shriveled, one solution is to arrange an air inlet on one side of an air cylinder of the emulsion pump, and in the process of pressing the emulsion pump, outside air can be supplemented into the container through the air inlet through a gap between an air cylinder plug and a piston rod so as to compensate negative pressure in the container.

However, the daily chemical products are used in various environments, and for example, a body wash, a shampoo, and the like are generally used in a shower room. In the shower process, water sprayed by the shower head is difficult to be prevented from being sprayed on the emulsion pump. For a lotion pump where the mouthpiece includes an upper ring, water may accumulate in the upper ring of the mouthpiece, as shown schematically in figures 1a and 1 b. Fig. 1a and 1b show a prior art lotion pump 1, wherein fig. 1b is an enlarged view of a part of fig. 1 a.

As can be seen from the figures, when water is poured onto lotion pump 1 during showering, water enters mouthpiece 20 from the gap between pressure head 10 and the upper ring of mouthpiece 20 and accumulates in the upper ring of mouthpiece 20. When accumulated to a certain depth, water present in the upper ring of mouthpiece 20 may overflow into the gap between piston rod 30 and cylinder plug 40 and then flow from air intake holes 51 on the middle cylinder 50 into the container, as shown by path P1 in fig. 1.

The inflow of water into the container can have an effect on the quality of the product in the container, such as the product going mouldy and deteriorating, which can lead to problems such as skin irritation for the consumer.

Therefore, there is a need for further improvement in the structure of the emulsion pump to overcome the technical problems of the prior art emulsion pumps described above.

SUMMERY OF THE UTILITY MODEL

The present invention is made in order to solve the above-mentioned problems existing in the prior art. The utility model aims at providing a lotion pump with improve structure, this lotion pump can be outside the lotion pump with the log raft that accumulates in the facing to prevent that the water that accumulates from flowing into the container and polluting product wherein in the facing.

Therefore, the utility model discloses a prevent emulsion pump of facing retaining includes pressure head, facing and cylinder, wherein, is connected with the piston rod in the below of pressure head, is connected with the cylinder stopper on the cylinder, and the cylinder stopper still links together with the facing, and the facing cooperation is on the bottleneck of container. Wherein a drainage structure is formed on the mouthpiece, the drainage structure communicating with a space between the mouthpiece and the bottle mouth, so that water accumulated on the mouthpiece is discharged from the space between the mouthpiece and the bottle mouth to the outside of the container.

Through this structure of emulsion pump, can lead the space between facing and the bottleneck with water, arrange outside the container again to can avoid water to flow into in the container from the clearance between piston rod and the cylinder stopper, thereby prevent to cause the pollution to the product in the container.

In a specific structure, the tooth socket comprises an upper ring positioned on the upper part and a lower ring positioned on the lower part, a spacing rib ring is formed between the upper ring and the lower ring, and the drainage structure is at least one drainage groove formed in the spacing rib ring. Typically, water will accumulate above the spacer rib ring, i.e. in the space of the upper ring, and by providing a drainage channel, water can flow into the space between the lower ring and the mouth of the container and thus be drained to the outside.

Preferably, an internal thread is formed on an inner surface of the lower ring, the internal thread being capable of cooperating with an external thread formed on an outer surface of a mouth of the container to couple the mouthpiece to the mouth, wherein a fitting clearance between the internal thread and the external thread forms a spiral flow path. The helical path formed by the clearance between the internal and external screw thread may act to move to the water flow, helping to reduce the risk of water flowing into the container.

Preferably, the drainage channel is in communication with the thread channel of the internal thread. Thus, the flow guiding effect on water can be further improved.

Preferably, the drain channel opens at the lowest position of the spacer rib ring. Thus, the water can be discharged to the drain groove, thereby improving the drainage efficiency.

In one specific structure, the upper surface of the spacer rib ring is formed to be inclined upward in the outside-in direction. Thus, the portion of the spacer rib ring that intersects the inner surface of the mouthpiece is at the lowest position and the drainage channel can be provided at the location where the spacer rib ring intersects the inner surface of the mouthpiece. In this way, water can be made to flow away from the gap between the piston rod and the cylinder plug, facilitating water drainage, while the risk of water flowing into the container can be further reduced.

Preferably, four water drainage grooves are uniformly arranged along the circumferential direction of the spacing rib ring, and the adjacent two water drainage grooves are spaced at an angle of 90 degrees. In this way, it is ensured that water flowing into the mouthpiece over substantially the entire circumference of the mouthpiece can be drained from a nearby drainage channel in a timely manner.

In a concrete structure of the cylinder plug, a sleeve is arranged at the upper part of the cylinder plug, a buckling part is formed at the top of the sleeve, and when the cylinder plug is installed on the cylinder, the buckling part is buckled on the upper surface of the spacing rib ring of the tooth socket.

Preferably, when the buckling part is buckled on the upper surface of the spacing rib ring of the tooth socket, the buckling part is positioned above the upper surface of the spacing rib ring. Thereby, the top of the cylinder plug may be made higher than the upper surface of the spacer rib ring, whereby this raised portion of the cylinder plug (e.g. the snap-in portion) may act as a water stop, further reducing the risk of water flowing into the container.

Drawings

The embodiments of the invention will become more apparent from the structure illustrated in the accompanying drawings, in which:

FIG. 1a shows a cross-sectional view of a prior art lotion pump.

FIG. 1b shows an enlarged partial cross-sectional view of the lotion pump shown in FIG. 1 a.

Figure 2a shows a cross-sectional view of the emulsion pump of the present invention.

Figure 2b shows an enlarged partial cross-sectional view of the lotion pump shown in figure 2 a.

Fig. 3a shows a cross-sectional view of a mouthpiece of the lotion pump of fig. 2 a.

Figure 3b illustratesbase:Sub>A cut-away perspective view of the mouthpiece taken along line A-A in figure 3base:Sub>A.

FIG. 4 shows a cross-sectional view of a cylinder plug of the lotion pump of FIG. 2 a.

Detailed Description

In order to facilitate understanding of the present invention, the following description will be made in detail with reference to the accompanying drawings. It is understood that only the preferred embodiment of the present invention has been shown in the drawings and should not be considered as limiting the scope of the invention. Various obvious modifications, variations and equivalent substitutions which can be made by those skilled in the art can be made on the embodiments of the invention shown in the drawings and fall within the scope of the invention.

Figure 2a shows a cross-sectional view of a lotion pump 100 of the present invention. The lotion pump 100 includes a pressing head 110 and a mouthpiece 120, and a piston rod 130 is connected to a lower portion of the pressing head 110. The emulsion pump 100 also includes a cylinder plug 140, and the cylinder plug 140 is connected to a cylinder 150, such as by a flange-and-groove arrangement or other means known in the art, secured within the cylinder 150. And the cylinder plug 140 is also coupled with the mouthpiece 120. The piston 160 is sleeved on the piston rod 130, at least the part of the piston rod 130 including the piston 160 extends into the cylinder 150, and the piston 160 is hermetically fitted on the inner wall of the cylinder 150.

Ram 110 may cause piston rod 130 and piston 160 on piston rod 130 to reciprocate relative to mouthpiece 120, cylinder plug 140, and cylinder 150, thereby effecting a pumping action on product entering cylinder 150.

Referring further to FIG. 2b, a close-up view of the emulsion pump 100 of FIG. 2a is shown. It can be seen that water may be accumulated on the mouthpiece 120 through a gap between the mouthpiece 120 and the pressure head 110 when showering, and in the present invention, a drainage structure capable of discharging water accumulated in the mouthpiece 120 to a space between the mouthpiece 120 and the mouth of the container 2 and finally to the outside of the container 2 where the lotion pump 100 is installed is provided in the mouthpiece 120.

Fig. 3base:Sub>A and 3b more specifically illustrate the structure of the mouthpiece 120 of the lotion pump 100 of the present invention, wherein fig. 3base:Sub>A isbase:Sub>A cross-sectional view of the mouthpiece 120, and fig. 3b isbase:Sub>A cut-away perspective view taken along linebase:Sub>A-base:Sub>A in fig. 3base:Sub>A. As shown in fig. 3a, the mouthpiece 120 includes an upper ring 121 at an upper portion and a lower ring 122 at a lower portion, and an internal thread 123 is formed on an inner surface of the lower ring 122, and the mouthpiece 120 is mounted to the container 2 by the engagement of the internal thread 123 with an external thread on a mouth of the container 2.

A spacer rib ring 124 is formed between the upper ring 121 and the lower ring 122, the spacer rib ring 124 being used for connection of the cylinder plug 140 to the mouthpiece 120, as will be described in more detail below. The spacer rib ring 124 may protrude radially inward from the inner surface of the mouthpiece 120, and at least one water discharge groove 125 is formed on the spacer rib ring 124. For example, in the exemplary configuration shown in fig. 3b, four drainage channels 125 are provided, and these drainage channels 125 are equally spaced apart from each other along the circumference of the spacer rib ring 124, i.e. the angular spacing between two adjacent drainage channels 125 is 90 °. Four equiangularly spaced drainage channels 125 are preferred which ensure that water flowing into the mouthpiece 120 around the entire circumference of the mouthpiece 120 is drained from a nearby one of the drainage channels 125 in a timely manner.

Of course, in addition to the preferred number and arrangement of drainage channels 125 described above, other numbers of drainage channels 125, such as one, two, three, five or other numbers, may be provided as desired, and the spacing between adjacent drainage channels 125 need not be equal.

In addition, in the structure shown in the figure, the drainage groove 125 has a slot shape, but it is known to those skilled in the art that other forms of drainage structures, such as a through hole, may be formed on the spacer rib ring 124, and the shape thereof may be any suitable shape, such as a circle, a rectangle, etc., as long as water can be smoothly drained.

Returning to figure 2b, it can be seen that water accumulated in mouthpiece 120 flows through drain channel 125 into the gap between mouthpiece 120 and the mouth of container 2, as shown by path P2.

More specifically, water discharged from the water discharge groove 125 enters the space of the lower ring 122 of the mouthpiece 120 where the internal thread 123 is formed, thereby flowing in the fitting gap between the internal thread 123 of the mouthpiece 120 and the external thread of the mouth of the container 2. Thus, water discharged from mouthpiece 120 flows along a spiral path formed by the fit clearance, as shown by the dotted line portion of path P2 in fig. 2 b. By providing drainage channels 125 on mouthpiece 120 to direct standing water to the portion of internal thread 123 in lower ring 122 of mouthpiece 120, the helical path formed by the thread fit between mouthpiece 120 and the mouth of container 2 can be used to direct the direction of flow of water, so that standing water can be better drained, further reducing the risk of water entering the interior of the container.

Further preferably, the drainage groove 125 or other drainage structures may be disposed to communicate with the thread groove of the internal thread 123 in the lower ring 122, so as to achieve a better flow guiding effect.

Preferably, the drain groove 125 is formed at the lowermost position of the spacer rib ring 124, so that water can be guided to the drain groove 125, reducing the risk of water overflowing into the gap between the piston rod 130 and the cylinder plug 140. For example, the upper surface of the spacer rib ring 124 may be formed to be inclined upward in the outside-in direction such that the portion of the spacer rib ring 124 that intersects the inner surface of the mouthpiece 120 is the lowest and the water discharge groove 125 is provided at the portion of the spacer rib ring 124 that intersects the inner surface of the mouthpiece 120.

Turning to FIG. 4, a cross-sectional view of the cylinder plug 140 is shown. As can be seen in fig. 4, the upper portion of the cylinder plug 140 is formed with a sleeve 141 that fits within the internal bore of the spaced rib ring 124 of the mouthpiece 120 (see fig. 2 b). A locking portion 142 is formed at the top of the sleeve 141, and when the cylinder plug 140 is mounted on the mouthpiece 120 and the cylinder 150, the locking portion 142 is locked to the spacer rib ring 124 of the mouthpiece 120. Also, as schematically shown in fig. 2b, the latch 142 is arranged such that when the latch 142 is snapped onto the spacer rib ring 124 of the mouthpiece 120, the latch 142 is located above the spacer rib ring 124, that is, when the top of the cylinder plug 140 is higher than the upper surface of the spacer rib ring 124. In this way, the portion of cylinder plug 140 that is raised above spacer rib ring 124 may act as a water dam, preventing water that enters mouthpiece 120 from escaping into the space between piston rod 130 and cylinder plug 140 before flowing into drain 125.

The tooth socket 120 of the emulsion pump 100 of the present invention can be molded in the following manner:

the shell 120 is molded using a fixed die core and a movable die threaded core in cooperation. Wherein at least one protrusion or bump is provided on the top surface of the fixed mold core, and the top surface of the movable mold threaded core is provided as a flat surface. When molding the mouthpiece 120, the fixed die core and the movable die threaded core are clamped so that the projection or bump on the fixed die core abuts on the flat surface of the movable die threaded core. In this way, the above-mentioned drainage channels 125 will be formed at the location of the projections or bumps after moulding.

Claims (9)

1. An emulsion pump for preventing tooth socket from storing water is arranged on a container and comprises a pressure head, a tooth socket and an air cylinder, wherein a piston rod is connected below the pressure head, an air cylinder plug is connected on the air cylinder, the air cylinder plug is also connected with the tooth socket together, the tooth socket is matched on a bottle mouth of the container,

wherein a drainage structure is formed on the mouthpiece, the drainage structure communicating with a space between the mouthpiece and the bottle mouth so as to drain water accumulated on the mouthpiece out of the container from the space between the mouthpiece and the bottle mouth.

2. The emulsion pump of claim 1, wherein the mouthpiece includes an upper ring at an upper portion and a lower ring at a lower portion, a spacer rib ring being formed between the upper ring and the lower ring, and the drainage structure is at least one drainage groove provided on the spacer rib ring.

3. The emulsion pump of claim 2, wherein an internal thread is formed on an inner surface of the lower ring, the internal thread being capable of mating with an external thread formed on an outer surface of the mouth of the container to couple the mouthpiece to the mouth, wherein a mating gap between the internal thread and the external thread forms a helical flow path.

4. The emulsion pump of claim 3, wherein the drainage channel is in communication with the thread channel of the internal thread.

5. The emulsion pump of claim 2, wherein the drain channel opens at a lowermost position of the spacer rib ring.

6. The emulsion pump of claim 5, wherein the upper surface of the spacer rib ring is formed to be inclined upward in an outside-in direction, and the water discharge groove is provided at a portion where the spacer rib ring meets the inner surface of the mouthpiece.

7. The emulsion pump of claim 2, wherein four of said water discharge grooves are uniformly arranged along the circumference of said spacer rib ring, and two adjacent water discharge grooves are spaced at an angular interval of 90 °.

8. The emulsion pump of claim 2, wherein a sleeve is provided at an upper portion of the cylinder plug, and a catching portion is formed at a top portion of the sleeve, the catching portion being caught on an upper surface of the spacer rib ring of the mouthpiece when the cylinder plug is mounted on the cylinder.

9. The emulsion pump of claim 8, wherein the catch is located above an upper surface of the spacer rib ring of the mouthpiece when the catch is snapped onto the upper surface of the spacer rib ring.

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