A pressing pump and a liquid container

Abstract

In the technical field of pump heads, in order to reduce the contamination of the liquid in the container and at the same time reduce the accumulation of external dirt, a pressing pump is provided, which includes: a pump body; a pressing head movably connected to the pump body; a shrapnel connected between the pump body and the pressing head, and when the pressing head is pressed, the shrapnel can provide a resilience force for the pressing head; the pump body, the pressing head and the shrapnel are all made of plastic; by applying the pressing pump of the present invention, the contamination of the liquid in the container can be reduced while reducing the accumulation of external dirt; the present invention also provides a liquid container.

Description

Technical Field

[0001] The present invention relates to the technical field of pump heads, and particularly relates to a pressing pump and a liquid container. Background Art

[0002] In current life, foam skin care products and foam washing and care products are widely used, thus giving birth to a pressing pump that can spray foam by pressing. In traditional pressing pumps, metal springs are widely used. After long-term use, they are prone to chemical reactions with the liquid in the liquid container, which not only easily causes the springs to age, but also the harmful substances generated after the springs rust are likely to contaminate the liquid.

[0003] For this reason, the prior art proposes a foam pump, in which a spiral plastic spring is sleeved outside the pressing head and the pump body to replace the metal spring in the traditional pressing pump. Since the spiral part of the spring is exposed, after long-term use, dirt such as external dust and hardened liquid will accumulate, affecting the use. Summary of the Invention

[0004] The present invention aims to at least solve one of the technical problems existing in the prior art. For this purpose, the present invention proposes a pressing pump and a liquid container, which can reduce the accumulation of external dirt while reducing the contamination of the liquid in the container.

[0005] The pressing pump of the present invention includes: a pump body; a pressing head movably connected to the pump body; a shrapnel connected between the pump body and the pressing head, and when the pressing head is pressed, the shrapnel can provide a restoring force for the pressing head; the pump body, the pressing head and the shrapnel are all made of plastic.

[0006] Further, one end of the pressing head connected to the pump body is sleeved on the upper end of the pump body, and the shrapnel is arranged inside the pump body.

[0007] Further, the shrapnel is arranged in a ring shape, a first abutting portion for abutting against the pressing head is arranged on the outer circle of the shrapnel, and a second abutting portion for abutting against the pump body is arranged on the inner circle of the shrapnel.

[0008] Further, an avoidance hole is arranged on the shrapnel, and the avoidance hole axially penetrates the shrapnel along the axis of the shrapnel.

[0009] Further, an avoidance hole is arranged on the shrapnel, and the avoidance hole axially penetrates the shrapnel along the axis of the shrapnel.

[0010] Further, a plurality of avoidance holes are arranged on the shrapnel, and the plurality of avoidance holes are distributed radially along the shrapnel.

[0011] Further, an avoidance groove is arranged on the shrapnel, and the avoidance groove extends circumferentially along the shrapnel.

[0012] Further, a plurality of avoidance grooves are arranged on the shrapnel, and the plurality of avoidance grooves are distributed circumferentially along the shrapnel.

[0013] Furthermore, a plurality of relief grooves are provided on the elastic piece, and the plurality of relief grooves are distributed along the radial direction of the elastic piece.

[0014] The present invention also provides a liquid container, including: a bottle body for containing liquid, and an opening is provided at the upper end of the bottle body; the above-mentioned pressing pump, and the pump body is arranged on the opening.

[0015] When the pressing pump of the present invention is used, when the pressing head is pressed down, the liquid spraying port of the pressing head can spray liquid or foam. At this time, the elastic piece generates elastic deformation. When the pressing head is released, the pressing head is reset under the action of the resilience of the elastic piece. Since the pump body, the pressing head and the elastic piece are all made of plastic, compared with the metal spring, the plastic parts have higher stability and are not easy to react with the liquid, causing harmful substances to precipitate and polluting the liquid; at the same time, the external structure of the elastic piece is relatively simple and does not have the spiral mechanism provided on the plastic spring, so dirt such as external dust and hardened liquid is not easy to accumulate.

[0016] Some of the additional aspects and advantages of the present invention will be given in the following description, some will become obvious from the following description, or will be understood through the practice of the present invention. Description of the Drawings

[0017] The above and / or additional aspects and advantages of the present invention will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, where:

[0018] Figure 1 is an axonometric view of the foam pump according to an embodiment of the present invention;

[0019] Figure 2 is a cross-sectional view of the foam pump according to an embodiment of the present invention;

[0020] Figure 3 is an axonometric view of an elastic piece according to an embodiment of the present invention;

[0021] Figure 4 is a cross-sectional view of an elastic piece according to an embodiment of the present invention;

[0022] Figure 5 is an axonometric view of another elastic piece according to an embodiment of the present invention;

[0023] Figure 6 is a cross-sectional view of another elastic piece according to an embodiment of the present invention;

[0024] The above-mentioned drawings include the following reference numerals.

[0025]

[0026] Detailed Embodiments

[0027] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention and should not be construed as limiting the present invention.

[0028] In the description of the present invention, it should be understood that with respect to the orientation description, such as up, down, front, back, left, right, etc., the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

[0029] In the description of the present invention, the meaning of "several" is one or more, the meaning of "multiple" is two or more, "greater than", "less than", "exceeding", etc. are understood as not including the recited number, and "above", "below", "within", etc. are understood as including the recited number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and should not be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0030] In the description of the present invention, unless otherwise clearly defined, terms such as "set", "installed", "connected", etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.

[0031] Refer to Figure 1 、 Figure 2 , a pressing pump, comprising: a pump body 200; a pressing head 100 disposed on the pump body 200; a shrapnel 300 connected between the pump body 200 and the pressing head 100, and when the pressing head 100 is pressed, the shrapnel 300 can provide a resilience force for the pressing head 100; the pump body 200, the pressing head 100 and the shrapnel 300 are all made of plastic.

[0032] When the pressing pump of this embodiment is applied and in use, when the pressing head 100 is pressed down, the liquid or foam can be ejected from the liquid ejection port of the pressing head 100. At this time, the shrapnel 300 undergoes elastic deformation. When the pressing head 100 is released, the pressing head 100 is reset under the action of the resilience force of the shrapnel 300. Since the pump body 200, the pressing head 100 and the shrapnel 300 are all made of plastic, compared with a metal spring, the plastic parts have higher stability and are not likely to react with the liquid to cause the precipitation of harmful substances and contaminate the liquid; at the same time, the external structure of the shrapnel 300 is relatively simple and does not have the spiral mechanism provided on the plastic spring, so dirt such as external dust and hardened liquid is not likely to accumulate.

[0033] Among them, the plastic shrapnel 300 can be made of high-elastic plastics known in the prior art, including various known thermoplastic elastomer materials such as styrene-based SBS, SIS, SEBS, SEPS, olefin-based TP0, TPV, diene-based TPB, TPI, vinyl chloride-based TPVC, TCPE, urethane-based TPU, ester-based TPEE, amide-based TPAE, organic fluorine-based TPF, silicone-based, and ethylene-based; these materials have good stability and corrosion resistance in normal temperature environments.

[0034] It can be understood that the specific structures of the pump body 200 and the pressing head 100 can refer to the structures of common pressing pumps in the prior art, such as the structure of the pressing pump disclosed in CN111232419A, etc.

[0035] As Figure 2 shown, in order to further prevent dirt from accumulating at the shrapnel 300 while enhancing the aesthetic degree of the outside of the pressing pump, one end of the pressing head 100 connected to the pump body 200 is sleeved on the upper end of the pump body 200, and the shrapnel 300 is arranged inside the pump body 200; at this time, the shrapnel 300 is hidden inside the pressing head 100 and cannot be observed without disassembling the pressing head 100. Compared with the prior art method of sleeving the plastic spring outside the pressing head 100, the aesthetic property of the appearance of the pressing pump is effectively increased.

[0036] As Figure 2 、 Figure 3 shown, in order to prevent the pressing head 100 from undergoing eccentric movement during pressing, resulting in jamming between the pressing head 100 and the pump body 200, the shrapnel 300 is arranged in a ring shape. A first abutting portion 310 for abutting against the pressing head 100 is arranged on the outer ring of the shrapnel 300, and a second abutting portion 320 for abutting against the pump body 200 is arranged on the inner ring of the shrapnel 300; when the pressing head 100 is pressed down and the shrapnel 300 undergoes elastic deformation, the shrapnel 300 can uniformly apply a restoring force to the pressing head 100 along its circumferential direction, so that the pressing head 100 can rebound along the axial direction of the shrapnel 300, avoiding the jamming phenomenon of the pressing head 100 caused by eccentric sliding of the pressing head 100.

[0037] As Figure 3 、 Figure 4 shown, in order to ensure that the shrapnel 300 can still maintain good elasticity after undergoing multiple elastic deformations and rebounds, and is not prone to permanent deformation resulting in weakened elasticity, an avoidance hole 330 can be opened on the shrapnel 300, and the avoidance hole 330 penetrates the shrapnel 300 along the axial direction of the shrapnel 300; when the shrapnel 300 is deformed under the action of the pressing head 100, the avoidance hole 330 can enable the shrapnel 300 to deform uniformly, avoiding the situation of permanent deformation after rebound caused by non-uniform deformation of the shrapnel 300.

[0038] Among them, asFigure 3 , Figure 4 As shown, in order to increase the deformable range of the shrapnel 300, a plurality of relief holes 330 are provided on the shrapnel 300, and the plurality of relief holes 330 are distributed circumferentially along the shrapnel 300; of course, it is also possible to arrange the plurality of relief holes 330 radially along the shrapnel 300; or as Figure 3 shown, multiple layers of relief holes 330 are provided in the radial direction of the shrapnel 300, and the relief holes 330 in each layer are distributed circumferentially along the shrapnel 300, and the relief holes 330 between layers are arranged radially offset along the shrapnel 300.

[0039] As Figure 4 shown, in order to facilitate the installation of the shrapnel 300, a thread can be provided on the pump body 200, and the first abutting portion 310 can be grafted onto the thread; wherein, in order to facilitate the installation of the shrapnel 300 on the thread, the thickness a of the shrapnel 300 can be less than the pitch of the thread; specifically, the diameter s of the relief hole 330 and the outer diameter D of the elastic body satisfy 0.01s < D < 0.1s; within this range, while ensuring the elasticity and strength of the shrapnel 300, the deformable range of the shrapnel 300 can be increased to a limited extent.

[0040] As Figure 5 shown, in order to increase the deformable range of the shrapnel 300 while facilitating the manufacture of the shrapnel 300, a relief groove 340 is provided on the shrapnel 300, and the relief groove 340 extends circumferentially along the shrapnel 300.

[0041] Among them, as Figure 5 shown, a plurality of relief grooves 340 can be provided circumferentially along the shrapnel 300.

[0042] As Figure 6 shown, a plurality of relief grooves 340 can also be provided radially on the shrapnel 300; specifically, a plurality of groups of relief grooves 340 can be arranged radially along the shrapnel 300, and a plurality of relief grooves 340 are circumferentially distributed in each circle.

[0043] As Figure 6 shown, in order to facilitate the installation of the shrapnel 300, a thread can be provided on the pump body 200, and the first abutting portion 310 can be grafted onto the thread; wherein, in order to facilitate the installation of the shrapnel 300 on the thread, the thickness a of the shrapnel 300 can be less than the pitch of the thread; specifically, the groove width s of the relief groove 340 and the outer diameter D of the elastic body satisfy 0.01s < D < 0.1s; within this range, while ensuring the elasticity and strength of the shrapnel 300, the deformable range of the shrapnel 300 can be increased to a limited extent.

[0044] It can be understood that a plurality of relief holes 330 and relief grooves 340 can be provided at intervals on the shrapnel 300 as needed.

[0045] This embodiment also provides a liquid container, including: a bottle body for containing liquid, with an opening provided at the upper end of the bottle body; the above-mentioned pressing pump, and the pump main body 200 is arranged on the opening.

[0046] Specifically, as Figure 2 shown, the pump main body 200 includes a housing 210 that can be installed at the opening of the container. The pressing head 100 is arranged at the upper end of the housing 210, and the elastic sheet 300 is arranged between the housing 210 and the pressing head 100. A foam channel is arranged inside the pressing head 100. An air-liquid mixing chamber 220 is arranged inside the upper end of the housing 210. A liquid pump chamber 230 and an air pump chamber 240 are arranged at the lower end of the housing 210. The air-liquid mixing chamber 220 is communicated with the foam channel, and the air-liquid mixing chamber 220 is respectively communicated with the liquid pump chamber 230 and the air pump chamber 240. A liquid pump piston 250 is arranged in the liquid pump chamber 230, and an air pump piston 260 is arranged in the air pump chamber 240. The pressing head 100 can move downward to abut against the liquid pump piston 250 and the air pump piston 260, so that the liquid pump piston 250 and the air pump piston 260 move downward.

[0047] Among them, a liquid delivery pipe 270 is connected below the liquid pump chamber 230. The liquid delivery pipe 270 is inserted into the bottom of the inner cavity of the bottle body for extracting liquid from the periphery of the inner cavity. Among them, the liquid delivery pipe 270 can be set to be straight according to needs, or the liquid delivery pipe 270 can be set to be spiral, so that the liquid delivery pipe 270 can be jointly extruded by the pump main body 200 and the bottle body, so that the opening at the bottom end of the liquid delivery pipe 270 is firmly attached to the bottom of the inner wall of the bottle body, making full use of the liquid in the bottle body.

[0048] Regarding other detailed structures of the pressing pump, reference can be made to the structure of the liquid pump disclosed in CN111232419A, or other pump body structures widely used in other disclosed prior arts can be adopted according to needs.

[0049] The above has described the embodiments of the present invention in detail with reference to the drawings, but the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the gist of the present invention.

Claims

1. A pressing pump, characterized in that, Comprising: A pump body (200), the pump body (200) comprising a housing (210) capable of being mounted at an opening of a container; A pressing head (100), movably connected to the pump body (200); A resilient sheet (300), connected between the pump body (200) and the pressing head (100), and when the pressing head (100) is pressed, the resilient sheet (300) can provide a resilient force for the pressing head (100); The pump body (200), the pressing head (100) and the resilient sheet (300) are all made of plastic; The resilient sheet (300) is arranged in a ring shape, a first abutting portion (310) for abutting against the pressing head (100) is arranged on the outer ring of the resilient sheet (300), and a second abutting portion (320) for abutting against the pump body (200) is arranged on the inner ring of the resilient sheet (300); An avoidance groove (340) is arranged on the resilient sheet (300), and the avoidance groove (340) extends along the circumferential direction of the resilient sheet (300); a plurality of the avoidance grooves (340) are arranged on the resilient sheet (300), and the plurality of avoidance grooves (340) are distributed along the circumferential direction and / or the radial direction of the resilient sheet (300), and the avoidance groove (340) is used to increase the deformable range of the resilient sheet (300).

2. The pressing pump according to claim 1, wherein, One end of the pressing head (100) connected to the pump body (200) is sleeved on the upper end of the pump body (200), and the resilient sheet (300) is arranged inside the pump body (200).

3. A liquid container, characterized in that, Comprising: A bottle body for containing a liquid, and an opening is arranged at the upper end of the bottle body; The pressing pump according to any one of claims 1 to 2, wherein the pump body (200) is arranged at the upper end of the opening.

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