Spring-free emulsion pump

Abstract

The emulsion pump without the spring comprises an upper cover and a lower cover, the upper cover is fixed on the lower cover, an opening is formed in the middle of the upper cover, an elastic element is arranged at the top of the upper cover, a protruding pressing part is arranged in the middle of the elastic element, a gap-shaped discharging port is formed in one end of the pressing part, and a discharging port is formed in the other end of the pressing part. A concave discharging channel is formed in the middle of the upper portion of the lower cover, and a feeding port is formed in one end of the discharging channel. A metal spring and a full-plastic spring are replaced by the elastic element made of the recyclable flexible rubber, so that the elastic element is more in line with the current environment-friendly concept; compared with a multi-section all-plastic spring, when the elastic element works, due to the fact that the pressing area of the elastic element is large (the number of stress points is large), the possibility of breakage of the elastic element is lower, and the service life of the all-plastic pump is longer.

Description

Technical Field

[0001] This utility model relates to the field of emulsion pump technology, and mainly to a springless emulsion pump. Background Technology

[0002] Lotion pumps are often used in conjunction with lotion bottles. Users draw out the liquid from the lotion bottle by repeatedly pressing the pump. The spring is an important component that enables the repeated pressing of the lotion pump.

[0003] Emulsion pump springs are typically made of metal. However, metal springs have drawbacks, such as high material costs and a tendency to rust and contaminate the emulsion. To address this issue, many all-plastic springs have emerged on the consumer market, such as… Figure 5 As shown, this is the elastic element in an emulsion pump. The elastic element is composed of multiple sections. During use, the connection points of each section are prone to breakage. If one section breaks, the performance of the entire elastic element will be greatly reduced, thus affecting the service life of the emulsion pump. Utility Model Content

[0004] The present invention aims to solve some problems existing in the prior art. Therefore, the purpose of the present invention is to provide a springless emulsion pump.

[0005] To achieve the above objectives, this utility model employs the following technical solution:

[0006] A springless emulsion pump includes an upper cover and a lower cover. The upper cover is fixed to the lower cover. The upper cover has an opening in the middle and an elastic element on the top. The elastic element has a raised pressing part in the middle and a slit-shaped discharge port at one end. The lower cover has a recessed discharge channel in the middle of the upper part and a feed port at one end.

[0007] Preferably, a mounting bracket is provided at the bottom of the feed inlet, a through hole is provided in the middle of the mounting bracket, a one-way valve plate is provided in the through hole, and the one-way valve plate covers the feed inlet.

[0008] Preferably, the top of the through hole has an open structure, and the bottom of the one-way valve plate has a conical head.

[0009] Preferably, a limiting ring is provided on the inner side of the bottom of the upper cover, and a notch is provided on the limiting ring to form an alignment groove. An alignment block is provided on the top of the lower cover, and the alignment block is used in conjunction with the alignment groove.

[0010] Preferably, the discharge port and the inlet are located at opposite ends.

[0011] Preferably, the discharge channel, the opening, and the pressing part are aligned.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention replaces metal springs and all-plastic springs with elastic elements made of recyclable soft rubber, making it more in line with current environmental protection concepts. Moreover, compared with multi-section all-plastic springs, the elastic element of this invention has a larger pressing area (more force points) during operation, which reduces the possibility of breakage and extends the service life of the all-plastic pump.

[0014] The features and advantages of this utility model will be described in detail through embodiments in conjunction with the accompanying drawings. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view of the entire utility model;

[0016] Figure 2 This utility model Figure 1 Enlarged view of point A in the image;

[0017] Figure 3 This is a bottom view of the top cover of this utility model;

[0018] Figure 4 This is a top view of the lower cover of this utility model;

[0019] Figure 5 It is a type of all-plastic spring in current technology.

[0020] Reference numerals: 1. Top cover, 2. Bottom cover, 3. Opening, 4. Elastic element, 5. Pressing part, 6. Discharge port, 7. Discharge channel, 8. Inlet, 9. Mounting bracket, 10. Through hole, 11. One-way valve plate, 12. Limiting ring, 13. Alignment groove, 14. Alignment block. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses consistent with some aspects of this application as detailed in the appended claims.

[0023] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless otherwise defined, the technical or scientific terms used in this application should be understood in their ordinary sense by one of ordinary skill in the art to which this utility model pertains. The words “a” or “one” and similar terms used in this application specification and claims do not indicate a limitation of quantity, but rather indicate the presence of at least one. “A plurality” includes two, equivalent to at least two. The words “comprising” or “including” and similar terms mean that the element or object preceding “comprising” or “including” covers the element or object listed following “comprising” or “including” and its equivalents, and does not exclude other elements or objects. The words “connected” or “linked” and similar terms are not limited to physical or mechanical connections and can include electrical connections, whether direct or indirect. The singular forms “a,” “the,” and “the” used in this application specification and appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0024] Please refer to the following for details. Figure 1-4 A springless emulsion pump includes an upper cover 1 and a lower cover 2. The upper cover 1 is fixed to the lower cover 2. The upper cover 1 and the lower cover 2 are sealed with sealant, which ensures the stable connection between the upper cover 1 and the lower cover 2 and increases the sealing performance. An opening 3 is provided in the middle of the upper cover 1. An elastic element 4 is provided on the top of the upper cover 1. The elastic element 4 is made of recyclable soft rubber. A raised pressing part 5 is provided in the middle of the elastic element 4. A slit-shaped discharge port 6 is provided at one end of the pressing part 5. A recessed discharge channel 7 is provided in the middle of the upper part of the lower cover 2. A feed port 8 is provided at one end of the discharge channel 7. The discharge port 6 and the feed port 8 are located at opposite ends.

[0025] Furthermore, a mounting bracket 9 is provided at the bottom of the feed inlet 8. The mounting bracket 9 and the lower cover 2 are an integral structure, formed by injection molding. A through hole 10 is provided in the middle of the mounting bracket 9, and a one-way valve plate 11 is provided in the through hole 10, covering the feed inlet 8. During discharge, the one-way valve plate 11 is pushed up on both sides, thereby opening the feed inlet 8, and the material normally enters the discharge channel 7. In the normal state, the one-way valve plate 11 seals the feed inlet 8 to prevent the emulsion from flowing out or flowing back.

[0026] Furthermore, the top of the through hole 10 is an open structure, and the bottom of the one-way valve plate 11 is a conical head. The design of the conical head and the open structure makes it easier to install the one-way valve plate 11 in the mounting bracket 9.

[0027] Furthermore, a limiting ring 12 is provided on the inner side of the bottom of the upper cover 1. The limiting ring 12 has a notch that forms an alignment groove 13. An alignment block 14 is provided on the top of the lower cover 2. The alignment block 14 works in conjunction with the alignment groove 13. The limiting ring 12 and the alignment block 14 working in conjunction with the alignment groove 13 are all for better alignment of the upper cover 1 and the lower cover 2, making their installation positions more accurate.

[0028] Furthermore, the discharge channel 7, the opening 3, and the pressing part 5 are aligned.

[0029] This utility model is a springless emulsion pump that can be used with packaging bottles. Its working principle is as follows:

[0030] By pressing the pressing part 5, the air inside the emulsion pump is discharged. At this time, the one-way valve plate 11 will be pushed up on both sides, thereby opening the feed port 8. The emulsion is sucked out from the packaging bottle, and the material normally enters the discharge channel 7 and is discharged from the discharge port 6 through the discharge channel 7 for use.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A springless cream pump comprising an upper cap and a lower cap, the upper cap being fixed to the lower cap, characterized in that, The upper cover is provided with an opening in the middle, and the top of the upper cover is provided with an elastic element, which is provided with a convex pressing part in the middle, and one end of the pressing part is provided with a slit-shaped discharge port, and the middle of the upper surface of the lower cover is provided with a recessed discharge channel, and one end of the discharge channel is provided with a feeding port.

2. The spring-less pump for a liquid product according to claim 1, characterized in that, The bottom of the feeding port is provided with a mounting bracket, the mounting bracket is provided with a through hole in the middle, and a one-way valve plate is arranged in the through hole and covers the feeding port.

3. The spring-less pump for a liquid product according to claim 2, characterized in that, The top of the through hole is in an open structure, and the bottom of the one-way valve plate is a conical head.

4. The spring-less pump for emulsions according to claim 3, characterized in that The bottom of the upper cover is provided with a limiting ring on the inner side, the limiting ring is provided with a notch, the notch forms an alignment groove, the top of the lower cover is provided with an alignment block, and the alignment block is used in cooperation with the alignment groove.

5. The spring-less pump of claim 4, wherein, The discharge port and the feeding port are located at opposite ends.

6. The spring-less pump for emulsions according to claim 5, characterized in that The discharge channel, the opening and the pressing part are aligned.

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