Pump head

By designing a staggered outer and inner pressing head structure, the drying and blocking problems of the inner material on the pump head nozzle are solved, and the pump head design with simple structure, convenient assembly and safe use is realized.

CN222267515UActive Publication Date: 2024-12-31ZHONGSHAN LEUNCHEONG DISPENSING PUMP
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202420655051.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-01
Publication Date
2024-12-31
Estimated Expiration
2034-04-01

AI Technical Summary

Technical Problem

When using paste or emulsion with high viscosity in the existing pump head, the material inside the nozzle contacts air for a long time and causes water loss, drying and agglomeration, and in severe cases, oxidation and deterioration, blocking the pump head, affecting the user experience. Moreover, the complex structure increases assembly difficulty and manufacturing cost.

Method used

A pump head is designed, including a pump core assembly in the main body and a horizontally rotatable outer and inner press head. The outer press head is provided with a second liquid outlet and the first liquid outlet that can be staggered, and driven by rotating the outer press head. The inner press head squeezes the liquid out of the pump core assembly and disconnects the fluid when not in use to prevent dryness and foreign matter from entering.

Benefits of technology

The inner emulsion on the nozzle is not dry, the structure is simple and the assembly is simple, the manufacturing cost is reduced, and the normal use and usage experience of the pump head is ensured.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222267515U_ABST
    Figure CN222267515U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of packaging bottles, in particular to a pump head which comprises a main body, a pump core assembly is arranged in the main body, a pressing head is arranged at the top of the pump core assembly and comprises an outer pressing head and an inner pressing head, the inner pressing head is communicated with the pump core assembly and provided with a first liquid outlet communicated with the pump core assembly, and the outer pressing head covers the inner pressing head. The outer pressing head can horizontally rotate relative to the inner pressing head, a second liquid outlet communicated with the first liquid outlet is formed in the outer pressing head, during use, by rotating the outer pressing head, the second liquid outlet is rotated to be communicated with the first liquid outlet, at the moment, by pressing the outer pressing head, the inner pressing head is driven to extrude the pump core assembly, and liquid can be discharged from the second pump nozzle; when not in use, the external pressing head is rotated to enable the second liquid outlet and the first liquid outlet to be connected and disconnected, it is guaranteed that residual emulsion in the first liquid outlet cannot flow out of the second liquid outlet, meanwhile, foreign matter can be prevented from entering the inner side of the first liquid outlet, the emulsion on the inner side of the first liquid outlet can be prevented from being dried, and the structure is simpler.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of packaging bottles, in particular to a pump head. Background Art

[0002] Packaging bottles are widely used in technical fields such as cosmetic packaging and pharmaceutical packaging to hold pastes or emulsions with high viscosity.

[0003] When the packaging bottle is filled with low-fluidity inner materials, the material remaining at the pump head outlet will gradually lose water, dry and agglomerate due to long-term contact with air during use. In severe cases, it will oxidize and deteriorate, clog the pump head, affect the normal use of the product, and affect the consumer's experience. For this reason, a pump head that prevents pump head clogging has appeared on the market.

[0004] For example, a patent document with publication number CN216660976U discloses a pump head, including an outer cover, a pressure head is fixedly connected to the inner side of the outer cover, a nozzle is connected to the inner side of the right end of the pressure head, and a sealing mechanism for protecting the nozzle is arranged on the inner side of the nozzle. Compared with the prior art, the pressure block, connecting shaft, rubber cloth, pressure block, first spring, limit plate, limit block, first wedge block, second wedge block and second spring are provided. When in use, the pressure block is pressed, and the pressure block is separated from the nozzle under the action of the pressure block, and then the emulsion can flow out through the nozzle. When not in use, the block is re-engaged with the nozzle under the action of the second spring, and the nozzle is sealed by the block to ensure that the emulsion remaining in the nozzle will not flow out of the nozzle. At the same time, foreign matter can be prevented from entering the inside of the nozzle, and the emulsion inside the nozzle can be prevented from drying.

[0005] However, in the above technology, through the cooperation between the blocking block, connecting shaft, rubber cloth, pressure block, first spring, limit plate, limit block, first wedge block, second wedge block and second spring, the pressure block is pressed during use, and the blocking block is separated from the nozzle under the action of the pressure block, and then the emulsion can flow out through the nozzle. When not in use, the blocking block is re-engaged with the nozzle under the action of the second spring, and the nozzle is sealed by the blocking block. The structure of the prior art is relatively complicated, the assembly is difficult, and the manufacturing cost is also increased.

[0006] Therefore, a pump head is proposed to solve the above technical problems. Utility Model Content

[0007] In order to solve the above technical problems, the purpose of the utility model is to provide a pump head with a simple structure and capable of preventing the emulsion inside the nozzle from drying and agglomerating.

[0008] The technical solution adopted by the utility model to solve the problem is: a pump head, including a main body, a pump core assembly is arranged in the main body, a press head is arranged on the top of the pump core assembly, the press head includes an outer press head and an inner press head, the inner press head is connected to the pump core assembly, a first liquid outlet connected to the pump core assembly is arranged on the inner press head, the outer press head cover is arranged on the inner press head, the outer press head can be horizontally rotated relative to the inner press head, the outer press head is provided with a second liquid outlet connected to the first liquid outlet, and after the outer press head is rotated by a certain angle, the first liquid outlet and the second liquid outlet can be completely staggered.

[0009] As a further improvement of the above technical solution, a protrusion is provided on the outer side of the inner pressing head, and a groove is provided on the inner side of the outer pressing head. The protrusion is snapped into the groove and is connected to the groove for horizontal rotation.

[0010] As a further improvement of the above technical solution, a stop protrusion is provided on the inner side of the top of the outer press head, and an arc-shaped protrusion is provided on the top of the inner press head. Limiting protrusions are provided at both ends of the opening of the arc-shaped protrusion, and a limiting part is formed between the limiting protrusions and the arc-shaped protrusions. When the outer press head rotates a certain angle, the stop protrusion is clamped in the limiting part.

[0011] As a further improvement of the above technical solution, the surface of the limiting protrusion is an arc-shaped surface.

[0012] As a further improvement of the above technical solution, a stop rib is provided on the inner side wall of the inner push head, and a stop groove adapted to the stop rib is provided on the upper part of the main body, and the stop rib is inserted into the stop groove.

[0013] As a further improvement of the above technical solution, the pump core assembly includes a pump core and a return spring, the inner push head is arranged at the top of the pump core, and the return spring is arranged between the inner push head and the main body.

[0014] As a further improvement of the above technical solution, it also includes a thread cover, which is sleeved on the outer side of the main body and has an internal thread on the inner side of the thread cover.

[0015] As a further improvement of the above technical solution, a gasket is provided on the inner side of the tooth cover.

[0016] As a further improvement of the above technical solution, it also includes an outer cover, which is arranged on the tooth cover, and an inward convex ring is arranged on the inner side wall of the outer cover, and the convex ring is interference fit with the side wall of the tooth cover.

[0017] As a further improvement of the above technical solution, an airtight ring is provided on the inner wall of the outer cover, and the airtight ring is located above the convex ring.

[0018] The beneficial effects of the utility model are as follows: when in use, the second liquid outlet is rotated to communicate with the first liquid outlet by rotating the outer pressing head, and at this time, the outer pressing head is pressed to drive the inner pressing head to squeeze the pump core component, so that liquid can be discharged from the second pump nozzle; when not in use, the second liquid outlet is completely staggered with the first liquid outlet by rotating the outer pressing head, ensuring that the emulsion remaining in the first liquid outlet will not flow out of the second liquid outlet, and at the same time, foreign matter can be prevented from entering the inner side of the first liquid outlet, and the emulsion inside the first liquid outlet can be prevented from drying, the structure is simpler, the assembly is easier and the manufacturing cost is lower. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further explained below in conjunction with the accompanying drawings and specific implementation methods.

[0020] Figure 1 It is a structural diagram of the utility model;

[0021] Figure 2 It is an exploded view of the utility model in a cross-section state;

[0022] Figure 3 It is a cross-sectional view of the utility model in use;

[0023] Figure 4 for Figure 3 A partial enlarged view of part A;

[0024] Figure 5 It is a partially enlarged cross-sectional view of the utility model when it is not in use;

[0025] Figure 6 This is a structural diagram of the inner button of the utility model from a top view;

[0026] Figure 7 It is a cross-sectional view of the connection between the inner pressing head and the outer pressing head of the utility model;

[0027] Figure 8 This is a structural diagram of the internal head of the utility model from an upward angle;

[0028] Fig. 9 It is a structural diagram of the main body of the utility model;

[0029] Fig.10 It is a cross-sectional view of the outer cover of the utility model.

[0030] In the figure: 1-main body, 11-stop groove, 2-pump core assembly, 21-pump core, 22-reset spring, 3-press head, 31-outer press head, 311-second liquid outlet, 312-groove, 313-stop convex point, 32-inner press head, 321-first liquid outlet, 322-clamping part, 323-arc-shaped protrusion, 324-limiting protrusion, 325-limiting part, 326-stop rib, 4-tooth cover, 5-gasket, 6-outer cover, 61-convex ring, 62-airtight ring. DETAILED DESCRIPTION

[0031] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0032] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, 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 device or element referred to 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.

[0033] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0034] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0035] Reference Figures 1 to 10A pump head comprises a main body 1, a pump core assembly 2 is movably connected in the main body 1, a pressing head 3 is arranged on the top of the pump core assembly 2, the pressing head 3 comprises an outer pressing head 31 and an inner pressing head 32, the inner pressing head 32 is connected to the pump core 21 assembly 2, a first liquid outlet 321 connected to the pump core 21 assembly 2 is arranged on the inner pressing head 32, the outer pressing head 31 is covered on the inner pressing head 32, the outer pressing head 31 can be horizontally rotated relative to the inner pressing head 32, a second liquid outlet 311 connected to the first liquid outlet 321 is arranged on the outer pressing head 31, and after the outer pressing head rotates a certain angle, the first liquid outlet and the second liquid outlet can be completely staggered;

[0036] When in use, the second liquid outlet 311 is rotated to be connected to the first liquid outlet 321 by rotating the outer pressing head 31. At this time, by pressing the outer pressing head 31, the inner pressing head 32 is driven to squeeze the pump core assembly 21, and liquid can be discharged from the second pump nozzle 311; when not in use, the second liquid outlet 311 is disconnected from the first liquid outlet 321 by rotating the outer pressing head 31.

[0037] In a preferred embodiment, in order to facilitate the stable installation of the outer press head 31 and the inner press head 32, the outer side of the inner press head 32 is provided with a clamping portion 322 protruding outward, and the inner side of the outer press head 31 is provided with a groove 312. The clamping portion 322 is clamped in the groove 312 and is connected to the groove 312 for horizontal rotation.

[0038] In the preferred embodiment, a stop convex point 313 is provided on the inner side of the top of the outer pressing head 31, and an arc-shaped protrusion 323 is provided on the top of the inner pressing head 32. Both ends of the opening of the arc-shaped protrusion 323 are provided with a limit protrusion 324, and a limit portion 325 is formed between the limit protrusion 324 and the arc-shaped protrusion 323. When the outer pressing head 31 rotates a certain angle, the stop convex point 313 is clamped in the limit portion 325.

[0039] When the stop protrusion 313 is located in the limiting portion 325 on one side, the second liquid outlet 311 is connected to the first liquid outlet 321 . When the stop protrusion 313 is separated from the limiting portion 325 and moves toward the limiting portion 325 on the other side, the second liquid outlet 311 is disconnected from the first liquid outlet 321 .

[0040] In a preferred embodiment, in order to make the rotation of the outer push head 31 smoother, the surface of the limiting protrusion 324 is an arc-shaped surface.

[0041] In a preferred embodiment, in order to prevent the inner press head 32 from rotating when the outer press head 31 is rotated, a stop rib 326 is provided on the inner side wall of the inner press head 32, and a stop groove 11 adapted to the stop rib 326 is provided on the upper part of the main body 1, and the stop rib 326 is inserted into the stop groove 11.

[0042] In a preferred embodiment, the pump core assembly 2 includes a pump core 21 and a return spring 22 , the inner push head 32 is disposed at the top of the pump core 21 , and the return spring 22 is disposed between the inner push head 32 and the main body 1 .

[0043] In a preferred embodiment, in order to facilitate installation of the pump head on the packaging bottle, a threaded cover 4 is further included. The threaded cover 4 is sleeved on the outer side of the main body 1, and an internal thread is provided on the inner side of the threaded cover 4.

[0044] In a preferred embodiment, in order to prevent contamination of the liquid in the packaging bottle, a gasket 5 is provided on the inner side of the tooth cover 4.

[0045] In a preferred embodiment, an outer cover 6 is provided, and the outer cover 6 is covered on the tooth cover 4. An inward convex ring 61 is provided on the inner side wall of the outer cover 6, and the convex ring 61 is interference fit with the side wall of the tooth cover 4.

[0046] In a preferred embodiment, in order to increase the air tightness of the pump head, an airtight ring 62 is provided on the inner wall of the outer cover 6. The airtight ring 62 is located above the convex ring 61. The airtight ring 62 is sealed to the side wall of the tooth cover 4 to prevent contamination of the pump head.

[0047] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention specification and drawings under the utility model concept, or directly or indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A pump head, comprising a main body (1), wherein a pump core assembly (2) is arranged inside the main body (1), and a push head (3) is arranged on the top of the pump core assembly (2), characterized in that: The pressing head (3) comprises an outer pressing head (31) and an inner pressing head (32); the inner pressing head (32) is provided with a first liquid outlet (321) connected to the pump core assembly (2); the outer pressing head (31) is covered on the inner pressing head (32); the outer pressing head (31) can rotate horizontally relative to the inner pressing head (32); the outer pressing head (31) is provided with a second liquid outlet (311) connected to the first liquid outlet (321); after the outer pressing head (31) rotates a certain angle, the first liquid outlet (321) and the second liquid outlet (311) can be completely staggered.

2. A pump head according to claim 1, characterized in that: The outer side of the inner pressing head (32) is provided with a clamping portion (322) protruding outward, and the inner side of the outer pressing head (31) is provided with a groove (312). The clamping portion (322) is clamped in the groove (312) and is connected to the groove (312) in a horizontal rotation manner.

3. A pump head as claimed in claim 2, characterized in that: A stop convex point (313) is provided on the inner side of the top of the outer pressing head (31), and an arc-shaped protrusion (323) is provided on the top of the inner pressing head (32). Limiting protrusions (324) are provided at both ends of the opening of the arc-shaped protrusion (323), and a limiting portion (325) is formed between the limiting protrusion (324) and the arc-shaped protrusion (323). When the outer pressing head (31) rotates at a certain angle, the stop convex point (313) is clamped in the limiting portion (325).

4. A pump head as claimed in claim 3, characterized in that: The surface of the limiting protrusion (324) is an arc-shaped surface.

5. A pump head as claimed in claim 3, characterized in that: A rotation-stopping rib (326) is provided on the inner side wall of the inner pressing head (32), and a rotation-stopping groove (11) adapted to the rotation-stopping rib (326) is provided on the upper part of the main body (1), and the rotation-stopping rib (326) is inserted into the rotation-stopping groove (11).

6. A pump head according to claim 1, characterized in that: The pump core assembly (2) comprises a pump core (21) and a return spring (22); the inner push head (32) is arranged at the top of the pump core (21); and the return spring (22) is arranged between the inner push head (32) and the main body (1).

7. A pump head according to claim 6, characterized in that: It also comprises a thread cover (4), wherein the thread cover (4) is sleeved on the outside of the main body (1), and the inner side of the thread cover (4) is provided with an internal thread.

8. A pump head according to claim 7, characterized in that: A gasket (5) is provided on the inner side of the tooth cover (4).

9. A pump head according to claim 8, characterized in that: It also comprises an outer cover (6), which is arranged on the tooth cover (4), and an inwardly facing convex ring (61) is arranged on the inner side wall of the outer cover (6), and the convex ring (61) is interference fit with the side wall of the tooth cover (4).

10. A pump head according to claim 9, characterized in that: An airtight ring (62) is provided on the inner side wall of the outer cover (6), and the airtight ring (62) is located above the convex ring (61).