Emulsion pump head

Abstract

The utility model discloses a lotion pump head which comprises a pressing head, a central guide pipe, a lock cover and a suction pipe, a lotion outlet is formed in the pressing head, the lotion outlet, the central guide pipe and the suction pipe are communicated with one another, a through hole is formed in the rear side of the pressing head, the through hole is communicated with the lotion outlet, and the axis of the through hole coincides with the axis of the lotion outlet. A channel formed by communicating the liquid outlet with the through hole penetrates through the pressing head front and back; a rubber strip is slidably connected into the channel, a driving part is arranged at the top of the pressing head and used for driving the rubber strip to move in the channel, residual emulsion in the pressing head can be guided out, the residual emulsion is prevented from caking, and the liquid outlet is prevented from being blocked. And the middle part of the rubber strip can play a role in sealing the central guide pipe and the liquid outlet of the pressing head, so that external liquid is prevented from entering the container through the liquid outlet to pollute the emulsion in the container.

Description

Technical Field

[0001] The utility model relates to the technical field of emulsion pump heads, in particular to an emulsion pump head. Background Art

[0002] An emulsion pump is generally installed at the opening of a container and is used to pump out a liquid such as emulsion in the container for use through the manual pressing operation of a user. It is found during the use of the emulsion pump head that the emulsion will agglomerate at the liquid outlet of the pressing head. Emulsion is generally a certain proportion of the fusion of surfactants and water, and most of them will also add thickeners to adjust the consistency of the emulsion. Due to long-term exposure to the air, the evaporation of water causes the emulsion to agglomerate, which will block the liquid outlet of the pressing head. After pressing, the subsequent emulsion cannot come out, and the emulsion solidified at the liquid outlet will cause waste. External liquid may also enter the container through the pump during the operation of the emulsion pump to contaminate the product contained in the container. Summary of the Utility Model

[0003] To solve the technical problems in the background art, the utility model proposes an emulsion pump head.

[0004] An emulsion pump head proposed by the utility model includes a pressing head, a central conduit, a locking cap and a straw. An outlet is provided in the pressing head. The outlet, the central conduit and the straw are interconnected. A through hole is provided at the rear side of the pressing head. The through hole is communicated with the outlet, and the axis of the through hole coincides with the axis of the outlet. The channel formed by the communication between the outlet and the through hole penetrates through the pressing head from front to back. A rubber strip is slidably connected in the channel. A driving member is provided at the top of the pressing head, and the driving member is used to drive the rubber strip to move in the channel.

[0005] Preferably, the driving member includes a driven gear. A rack is provided at the top of the rubber strip. The driven gear is rotatably connected to the top of the pressing head, and the driven gear meshes with the rack.

[0006] Preferably, a front limiting member is installed at the top end of the rubber strip, and a rear limiting member is installed at the tail end thereof. The driven gear is located between the front limiting member and the rear limiting member. When the driven gear touches the front limiting member, the central conduit is communicated with the channel. When the driven gear touches the rear limiting member, the top end of the rubber strip is located at the front end of the channel.

[0007] Preferably, a mounting bracket is provided at the top of the pressing head. A driving gear is rotatably connected to the mounting bracket. The driving gear meshes with the driven gear, and the diameter of the driving gear is larger than that of the driven gear.

[0008] Preferably, the inner wall of the channel is in the shape of a square hole, and both the two sides and the bottom of the rubber strip are sealed with the inner wall of the channel.

[0009] Preferably, a hemispherical top head is installed at the top end of the front limiting member of the rubber strip.

[0010] In the present utility model, a lotion pump head is proposed. After each use of the lotion, when the rubber strip is moved to the position as Figure 1 described, the remaining lotion in the pressing head can be discharged, avoiding the remaining lotion from caking and blocking the liquid outlet. Moreover, the middle part of the rubber strip can seal the central conduit and the liquid outlet of the pressing head, preventing external liquid from entering the container through the liquid outlet, thereby contaminating the lotion in the container. The driving gear can drive the driven gear to rotate, thereby driving the rubber strip to move. By changing the transmission ratio, only a slight rotation of the driving gear is needed to drive the rubber strip to move. The front limiting member and the rear limiting member can limit the two extreme distances of the movement of the rubber strip and prevent the driven gear from continuing to rotate.

[0011] Additional aspects and advantages of the present utility model will be given in part in the following description, will become apparent in part from the following description, or will be understood through the practice of the present utility model. Description of the Drawings

[0012] Figure 1 is a schematic structural diagram of the present utility model;

[0013] Figure 2 is a schematic structural diagram when the liquid outlet and the central conduit of the present utility model are communicated;

[0014] Figure 3 is a top view of the pressing head of the present utility model;

[0015] Figure 4 is a schematic structural diagram of the rubber strip of the present utility model;

[0016] Reference numerals in the drawings: 1, pressing head; 101, liquid outlet; 102, central conduit; 103, lock cap; 104, straw; 2, through hole; 3, rubber strip; 301, front limiting member; 302, rear limiting member; 303, top head; 304, rack; 4, driven gear; 5, driving gear; 501, mounting bracket. Detailed Embodiments

[0017] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary only for explaining the present utility model and should not be construed as limiting the present utility model.

[0018] As Figures 1 - 4An emulsion pump head as shown includes a pressing head 1, a central conduit 102, a locking cap 103, and a straw 104. An outlet 101 is provided inside the pressing head 1. The outlet 101, the central conduit 102, and the straw 104 are in communication with each other. A through hole 2 is provided at the rear side of the pressing head 1. The through hole 2 is in communication with the outlet 101, and the axis of the through hole 2 coincides with the axis of the outlet 101. The channel formed by the communication between the outlet 101 and the through hole 2 penetrates through the pressing head 1 from front to back. A rubber strip 3 is slidably connected in the channel. A driving member is provided at the top of the pressing head 1, and the driving member is used to drive the rubber strip 3 to move in the channel.

[0019] After each use of the emulsion, when the rubber strip 3 is moved to the position as Figure 1 described, the residual emulsion in the pressing head 1 can be discharged. Moreover, the middle part of the rubber strip 3 can seal the central conduit 102 and the outlet 101 of the pressing head 1, preventing external liquid from entering the container through the outlet 101, thereby contaminating the emulsion in the container.

[0020] Preferably, the driving member includes a driven gear 4. A rack 304 is provided at the top of the rubber strip 3. The driven gear 4 is rotatably connected to the top of the pressing head 1, and the driven gear 4 meshes with the rack 304.

[0021] By rotating the driven gear 4, the teeth on the side wall of the driven gear 4 drive the rubber strip 3 to move in the channel through meshing with the rack 304 at the top of the rubber strip 3.

[0022] Preferably, a front limiting member 301 is installed at the top end of the rubber strip 3, and a rear limiting member 302 is installed at its tail end. The driven gear 4 is located between the front limiting member 301 and the rear limiting member 302. When the driven gear 4 touches the front limiting member 301, the central conduit 102 is in communication with the channel. When the driven gear 4 touches the rear limiting member 302, the top end of the rubber strip 3 is located at the front end of the channel.

[0023] The front limiting member 301 and the rear limiting member 302 can limit the two extreme distances of the movement of the rubber strip 3 and prevent the driven gear 4 from continuing to rotate.

[0024] Preferably, an installation frame 501 is provided at the top of the pressing head 1. A driving gear 5 is rotatably connected to the installation frame 501. The driving gear 5 meshes with the driven gear 4, and the diameter of the driving gear 5 is larger than the diameter of the driven gear 4.

[0025] The driving gear 5 can drive the driven gear 4 to rotate, thereby driving the rubber strip 3 to move. By changing the transmission ratio, only by slightly rotating the driving gear 5, the rubber strip 3 can be driven to move.

[0026] Preferably, the inner wall of the channel is in the shape of a square hole. Both the two sides and the bottom of the rubber strip 3 are sealed with the inner wall of the channel. The rubber strip 3 fits tightly with the square hole, playing a sealing role, and the square hole can play a role in limiting and guiding.

[0027] Preferably, a hemispherical head 303 is installed at the top of the front limiting member 301 of the rubber strip 3, and the hemispherical head 303 can play a role in pushing the residual emulsion.

[0028] It should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationship shown in the drawings, and are 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 a limitation to the present invention.

[0029] In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connection", "fix", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or communication with each other; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In the present utility model, unless otherwise clearly stipulated and defined, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is less than that of the second feature.

[0032] As described above, only the preferred specific embodiments of the present utility model are provided, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, making equivalent substitutions or changes according to the technical solution and inventive concept of the present utility model, shall be covered by the protection scope of the present utility model.

Claims

1. An emulsion pump head, comprising a pressing head (1), a central conduit (102), a locking cap (103) and a suction pipe (104). An outlet (101) is provided in the pressing head (1), and the outlet (101), the central conduit (102) and the suction pipe (104) are in communication with each other. It is characterized in that: A through hole (2) is formed at the rear side of the pressing head (1). The through hole (2) is communicated with the liquid outlet (101), and the axis of the through hole (2) coincides with the axis of the liquid outlet (101). The channel formed by the communication between the liquid outlet (101) and the through hole (2) penetrates through the pressing head (1) from front to back. A rubber strip (3) is slidably connected in the channel. A driving member is provided at the top of the pressing head (1), and the driving member is used to drive the rubber strip (3) to move in the channel.

2. The emulsion pump head according to claim 1, wherein The driving member includes a driven gear (4). A rack (304) is provided at the top of the rubber strip (3). The driven gear (4) is rotatably connected to the top of the pressing head (1), and the driven gear (4) meshes with the rack (304).

3. The emulsion pump head according to claim 2, wherein A front limiting member (301) is installed at the top end of the rubber strip (3), and a rear limiting member (302) is installed at the tail end thereof. The driven gear (4) is located between the front limiting member (301) and the rear limiting member (302). When the driven gear (4) touches the front limiting member (301), the central conduit (102) is communicated with the channel. When the driven gear (4) touches the rear limiting member (302), the top end of the rubber strip (3) is located at the front end of the channel.

4. The emulsion pump head according to claim 3, characterized in that, An installation frame (501) is provided at the top of the pressing head (1). A driving gear (5) is rotatably connected to the installation frame (501). The driving gear (5) meshes with the driven gear (4), and the diameter of the driving gear (5) is larger than that of the driven gear (4).

5. The emulsion pump head according to claim 1, characterized in that, The inner wall of the channel is in the shape of a square hole, and both the two sides and the bottom of the rubber strip (3) are sealed with the inner wall of the channel.

6. The emulsion pump head according to claim 3, characterized in that, A hemispherical top head (303) is installed at the top end of the front limiting member (301) of the rubber strip (3).

Images