Emulsion pump with freshness locking function

Abstract

The application provides a lotion pump with a fresh-keeping function, comprising a shoulder sleeve, a head cap and a pump body, the pump body is fixed in the shoulder sleeve and connected to an external bottle body at the bottom, the pump body is connected with the head cap through a piston rod, the piston rod is externally sleeved with a first reset spring, a sealing element is movably installed in the head cap, the sealing element is sleeved with a second reset spring, one end of the sealing element is provided with a driving groove, and the shoulder sleeve is provided with a corresponding driving block. The lotion pump with the fresh-keeping function provided by the application can automatically seal the liquid outlet of the head cap in the unused state, so that the external air cannot enter the internal bottle body along the liquid outlet channel to cause the oxidation and pollution of the lotion in the bottle, thereby achieving the fresh-keeping effect, and when the head cap is pressed, the sealing element can be automatically unlocked through the driving block on the shoulder sleeve, and then the liquid outlet is realized.

Description

Technical Field

[0001] This application relates to the field of emulsion pump technology, specifically to an emulsion pump with a freshness-locking function. Background Technology

[0002] With the continuous improvement of people's living standards, the sales volume of skin care products such as foundation and sunscreen has been increasing among various cosmetics. The demand for packaging materials for foundation has also become more prominent. These liquids are generally packaged in small-diameter plastic blow bottles or glass bottles with plastic stoppers at the opening. Patent application number CN201810270997.0 discloses a lotion bottle, including a bottle body, a suction tube inside the bottle body, a head seat at the upper end of a vertical pump tube, a flared tube below the vertical pump tube, a first one-way valve in the liquid outlet channel, a second one-way valve in the suction tube, a balance one-way valve on the bottle body, an upper spring and spring seat inside the suction tube, a cylindrical positioning groove and a positioning sealing ring on the bottle body, and an adjusting cap on the cylindrical seat. The adjusting cap and the lower end of the cylindrical seat together form an adjusting air chamber, which is connected to the cylindrical positioning groove through an adjusting air pipe. The emulsion bottle's outlet is open to the outside, making it impossible to achieve a complete seal. This allows air to enter through the bottle opening during use, oxidizing the emulsion inside the bottle. Consequently, the emulsion deteriorates after prolonged use, affecting product quality. Summary of the Invention

[0003] (a) Technical problems to be solved The problem to be solved by this application is to provide an emulsion pump with a freshness-locking function, which can overcome the defects in the prior art.

[0004] (II) Technical Solution The embodiments in this specification provide the following technical solutions: This specification provides an embodiment of a lotion pump with a freshness-locking function, including a shoulder sleeve, a cap, and a pump body. The pump body is fixed inside the shoulder sleeve and its bottom is connected to an external bottle. The pump body is connected to the cap via a piston rod. A first return spring is fitted outside the piston rod. A sealing element is movably installed inside the cap. A second return spring is fitted on the sealing element. One end of the sealing element has a drive groove. A corresponding drive block is provided on the shoulder sleeve. When the cap is pressed down, the drive block pushes the sealing element through the drive groove to unlock the cap. After the cap is reset, the second return spring pushes the sealing element to seal the cap.

[0005] In some embodiments, the cap has a movable groove, the seal is installed in the movable groove, one end of the movable groove has a liquid outlet, and the end of the seal has a sealing part corresponding to the liquid outlet.

[0006] In some embodiments, a sealing ring is installed at one end of the seal near the drive groove, the sealing ring fits into the movable groove, and one end of the movable groove has an opening through which the drive block can pass.

[0007] In some embodiments, the drive groove is a triangular groove, the end of the drive block is an inclined surface corresponding to the drive groove, and when the seal is locked, a portion of the drive groove is located above the opening.

[0008] In some embodiments, the cap is provided with a stop portion, one end of the second return spring abuts against the stop portion, the cap is provided with a connecting tube, the connecting tube is inserted into the piston rod, and a liquid outlet channel is formed between the liquid outlet and the connecting tube.

[0009] In some embodiments, the first return spring is a plastic spring, and the lower end of the piston rod is movably connected to the pump body via a piston.

[0010] (III) Beneficial Effects Compared with the prior art, the beneficial effects that can be achieved by at least one of the above-mentioned technical solutions adopted in the embodiments of this specification include: the sealing element inside the cap can automatically seal the liquid outlet of the cap when not in use, so that external air cannot enter the bottle through the liquid outlet channel and cause oxidation and contamination of the emulsion inside the bottle, thereby achieving the effect of locking in freshness; when the cap is pressed, the sealing element can be automatically unlocked by the drive block on the shoulder sleeve to achieve liquid dispensing. Attached Figure Description

[0011] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a sectional view in this application; Figure 2 This is a perspective view in this application; Figure 3 This is a perspective view of the seal in this application; Figure 4 This is a sectional view of the headgear in this application; Figure 5 This is a three-dimensional view of the shoulder cover in this application; Figure 6 This is a perspective view of the pump body and the first reset spring in Embodiment 2 of this application; Figure 7 This is a cross-sectional view of the pump body and the first reset spring in Embodiment 2 of this application.

[0013] The component names corresponding to the various labels in the figure are: 1. Shoulder sleeve; 2. Head cap; 3. Pump body; 4. Piston rod; 5. First return spring; 6. Seal; 7. Second return spring; 8. Drive groove; 9. Drive block; 10. Movable groove; 11. Liquid outlet; 12. Liquid outlet channel; 13. Sealing part; 14. Sealing ring; 15. Opening; 16. Stop part; 17. Connecting pipe; 18. Piston. Detailed Implementation

[0014] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0015] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0016] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this application, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.

[0017] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The illustrations only show the components related to this application and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0018] Additionally, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that practice can be carried out without these specific details. Example

[0019] Combination Figures 1-5 As shown, this application provides a lotion pump with a freshness-locking function, including a shoulder cover 1, a cap 2, and a pump body 3. The pump body 3 is fixed inside the shoulder cover 1 and its bottom is connected to an external bottle. The pump body 3 is connected to the cap 2 via a piston rod 4. The lower end of the piston rod 4 is movably connected inside the pump body 3 via a piston 18. A first return spring 5 is fitted outside the piston rod 4. A sealing member 6 is movably installed inside the cap 2, and a second return spring 7 is fitted on the sealing member 6. In this embodiment, both the first return spring 5 and the second return spring 7 are ordinary springs. One end of the sealing member 6 is provided with a drive groove 8, and the shoulder cover 1 is provided with a corresponding drive block 9. Specifically, the drive groove 8 is a triangular groove, and the end of the drive block 9 is an inclined surface and is connected to the drive block 9. Corresponding to the movable groove 8, the cap 2 has a movable groove 10 inside, and the seal 6 is installed in the movable groove 10. One end of the movable groove 10 has a liquid outlet 11, and the end of the seal 6 has a sealing part 13 corresponding to the liquid outlet 11. When the cap 2 is pressed down, the inclined surface of the drive block 9 contacts the inclined surface of the drive groove 8. The drive groove 8 pushes the seal 6 to slide along the movable groove 10 so that the sealing part 13 at its end is disengaged from the liquid outlet 11. At this time, the cap 2 is unlocked, and liquid can be discharged from the pump body 3. After the cap 2 is released, the first return spring 5 will drive the cap 2 to return, and the second return spring 7 will push the seal 6 to return so that it re-seals the liquid outlet 11 of the cap 2, preventing external air from entering the pump body 3.

[0020] In some embodiments, such as Figure 1 , Figure 3 and Figure 4 As shown, a sealing ring 14 is installed at one end of the seal 6 near the drive groove 8. The sealing ring 14 fits into the movable groove 10. A connecting pipe 17 is provided on the cap 2. The connecting pipe 17 is inserted into the piston rod 4. An outlet channel 12 is formed between the outlet 11 and the connecting pipe 17. An opening 15 is provided at one end of the movable groove 10. The sealing ring 14 can prevent the emulsion in the outlet channel 12 from entering the end of the movable groove 10 located at the opening 15. When the seal 6 is unlocked, it pushes the emulsion in the movable groove 10 toward the outlet 11. The drive block 9 can pass through the opening 15. When the seal 6 is locked, a part of the drive groove 8 is located above the opening 15. Therefore, after the drive block 9 passes through the opening 15, it will cooperate with the drive groove 8. A stop part 16 is provided on the cap 2. One end of the second return spring 7 abuts against the stop part 16, so that the second return spring 7 can push the seal 6. Example

[0021] Combination Figures 6-7 As shown, the difference between this embodiment and Embodiment 1 is that the first reset spring 5 is a plastic spring. The bottom of the plastic spring abuts against one end of the pump body 3, and the top abuts against the piston rod 4. When the piston rod 4 descends, it is compressed, thereby rebounding and driving the piston rod 4 and the piston 18 to reset.

[0022] In this specification, the same or similar parts between the various embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the descriptions of the embodiments described later are relatively simple, and relevant parts can be referred to the descriptions of the foregoing embodiments.

[0023] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A lotion pump with freshness-locking function, comprising a shoulder cover (1), a head cap (2), and a pump body (3), characterized in that: The pump body (3) is fixed inside the shoulder sleeve (1) and its bottom is connected to the outer bottle body. The pump body (3) is connected to the cap (2) through the piston rod (4). A first return spring (5) is fitted on the outside of the piston rod (4). A seal (6) is movably installed inside the cap (2). A second return spring (7) is fitted on the seal (6). A drive groove (8) is provided at one end of the seal (6). A corresponding drive block (9) is provided on the shoulder sleeve (1). When the cap (2) is pressed down, the drive block (9) pushes the seal (6) through the drive groove (8) to unlock the cap (2). After the cap (2) is reset, the second return spring (7) will push the seal (6) to seal the cap (2).

2. The emulsion pump with freshness-locking function according to claim 1, characterized in that, The cap (2) has a movable groove (10) inside, and the seal (6) is installed in the movable groove (10).

3. The emulsion pump with freshness-locking function according to claim 2, characterized in that, One end of the movable groove (10) is provided with a liquid outlet (11), and the end of the sealing member (6) is provided with a sealing part (13) corresponding to the liquid outlet (11).

4. The emulsion pump with freshness-locking function according to claim 2, characterized in that, A sealing ring (14) is installed at one end of the seal (6) near the drive groove (8), and the sealing ring (14) fits into the movable groove (10).

5. The emulsion pump with freshness-locking function according to claim 2, characterized in that, One end of the movable groove (10) is provided with an opening (15), through which the drive block (9) can pass.

6. The emulsion pump with freshness-locking function according to claim 5, characterized in that, The drive groove (8) is a triangular groove, the end of the drive block (9) is an inclined surface and corresponds to the drive groove (8), and when the seal (6) is locked, a part of the drive groove (8) is located above the opening (15).

7. The emulsion pump with freshness-locking function according to claim 1, characterized in that, The cap (2) is provided with a stop (16), and one end of the second return spring (7) abuts against the stop (16).

8. The emulsion pump with freshness-locking function according to claim 3, characterized in that, The cap (2) is provided with a connecting tube (17), which is inserted into the piston rod (4). A liquid outlet channel (12) is formed between the liquid outlet (11) and the connecting tube (17).

9. The emulsion pump with freshness-locking function according to claim 1, characterized in that, The first reset spring (5) is a plastic spring.

10. The emulsion pump with freshness-locking function according to claim 1, characterized in that, The lower end of the piston rod (4) is movably connected inside the pump body (3) via the piston (18).

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