CN211140195U - Universal limiting structure for built-in pump body and external pump body - Google Patents

Abstract

The utility model discloses a general limiting structure of an internal pump body and an external pump body, which comprises a limiting sleeve and a pump body, wherein the limiting sleeve is in interference fit with the pump body; the inner wall surface of the lower end of the limiting sleeve or the inner wall surface of the upper end of the pump body is provided with a groove structure, the outer wall surface of the upper end of the pump body or the outer wall surface of the lower end of the limiting sleeve is provided with a bulge structure, and the groove structure of the inner wall surface of the limiting sleeve is matched with the bulge structure of the outer wall surface of the pump body or the groove structure of the inner wall surface of the pump body is matched with the bulge. The utility model discloses can accomplish the pump pole and the pole spring on it spacing, the pump of completion emulsion pumps the use of spare parts such as cooperation pump pole. Stop collar and pump body interference fit in this application, connect closely, it is more reliable.

Description

Universal limiting structure for built-in pump body and external pump body

[ technical field ] A method for producing a semiconductor device

The utility model relates to a technical field of the pump body structure of cosmetic bottle, especially built-in and general limit structure's of external pump body technical field.

[ background of the invention ]

Bottles for containing cosmetics are called cosmetic bottles. The cosmetics are chemical industrial products or fine chemical products which are applied, sprayed or the like on any part of the surface of the human body, such as skin, hair, nails, lips, teeth and the like, so as to achieve the purposes of cleaning, maintaining, beautifying, decorating and changing the appearance, or correcting the odor of the human body and keeping the good state. Most of the cosmetics exist in the state of emulsion, and a bottle containing the emulsion-like cosmetics is called an emulsion bottle. The emulsion bottle can convey the emulsion up mainly by a pump body structure at the upper end of the emulsion bottle. In the prior art, a limit structure of a pump body of an emulsion bottle has a plurality of problems, such as easy damage of the structure and complex structures of an inner pump and an outer pump. Therefore, a more reliable limiting structure of the general built-in and external pump bodies is needed.

[ Utility model ] content

The utility model aims at solving the problem among the prior art, provide a built-in and general limit structure of external pump body, can accomplish the pump pole and go up the pole spring spacing, the pump that accomplishes the emulsion pumps the pump to use with spare parts such as cooperation pump pole. Stop collar and pump body interference fit in this application, connect closely, it is more reliable.

In order to achieve the purpose, the utility model provides a limiting structure which is universal for an internal pump body and an external pump body, comprising a limiting sleeve and a pump body, wherein the limiting sleeve is in interference fit with the pump body; the inner wall surface of the lower end of the limiting sleeve or the inner wall surface of the upper end of the pump body is provided with a groove structure, the outer wall surface of the upper end of the pump body or the outer wall surface of the lower end of the limiting sleeve is provided with a bulge structure, and the groove structure of the inner wall surface of the limiting sleeve is matched with the bulge structure of the outer wall surface of the pump body or the groove structure of the inner wall surface of the pump body is matched with the bulge.

Preferably, the middle of the limiting sleeve penetrates through a pump rod, a rod spring is sleeved on the pump rod, and the pump rod is a cross hollow tube; the upper end surface and the lower end surface of the rod spring are respectively contacted with the pump rod and the sliding sleeve, the sliding sleeve is sleeved at the lower end of the pump rod, the lower end of the sliding sleeve is matched with a thimble, the lower end of the thimble is sleeved with a thimble spring, the lower end of the thimble spring is matched with a ball, and the ball is arranged at the lower end of the cavity in the pump body; and the outer wall surface of the pump body is provided with a ventilation hole which is a circular through hole.

Preferably, the middle of the limiting sleeve penetrates through the pump rod, a rod spring is sleeved on the pump rod, the pump rod is a T-shaped hollow tube, the upper end face and the lower end face of the rod spring are respectively contacted with the pump rod and the limiting sleeve, a liquid guide tube is matched in the pump rod, the lower end of the pump rod is matched with the sliding sleeve, and the lower end face of the sliding sleeve is matched with the lower part of the liquid guide tube; a partition plate is arranged below the inside of the pump body, and a plurality of through holes are formed in the partition plate.

Preferably, the protruding structure is an annular protruding structure, the groove structure is an annular groove structure, the cross sections of the protruding structure and the groove structure are arc-shaped surfaces, and the protruding structure is matched with the groove structure.

The utility model has the advantages that: the utility model discloses can accomplish the pump pole and the pole spring on it spacing, the pump of completion emulsion pumps the use of spare parts such as cooperation pump pole. Stop collar and pump body interference fit in this application, connect closely, it is more reliable.

The features and advantages of the present invention will be described in detail by embodiments with reference to the accompanying drawings.

[ description of the drawings ]

Fig. 1 is a schematic view of a main view structure of an internal pump body of a limit structure commonly used for the internal pump body and an external pump body of the present invention;

fig. 2 is a schematic view of a main sectional structure of an internal pump body of a general limiting structure for the internal and external pump bodies of the present invention;

FIG. 3 is an enlarged view of the portion A of FIG. 2 according to the present invention;

fig. 4 is a schematic view of a main view structure of an external pump body of a limit structure commonly used for an internal pump body and an external pump body of the present invention;

fig. 5 is a schematic view of a main view cross-sectional structure of an external pump body of a limit structure commonly used for an internal pump body and an external pump body of the present invention;

fig. 6 is an enlarged view of a portion B of fig. 5 according to the present invention.

In the figure: 1-a limiting sleeve, 2-a pump body, 21-a ventilating hole, 3-a pump rod, 4-a rod spring, 5-a sliding sleeve, 6-a liquid guide pipe, 7-an ejector pin, 8-an ejector pin spring, 9-a ball, 10-a convex structure and 11-a concave structure.

[ detailed description ] embodiments

Referring to fig. 1-6, the present invention comprises a position-limiting sleeve 1 and a pump body 2, wherein the position-limiting sleeve 1 is in interference fit with the pump body 2; the inner wall surface of the lower end of the limiting sleeve 1 or the inner wall surface of the upper end of the pump body 2 is provided with a groove structure 11, the outer wall surface of the upper end of the pump body 2 or the outer wall surface of the lower end of the limiting sleeve 1 is provided with a bulge structure 10, the groove structure 11 of the inner wall surface of the limiting sleeve 1 is matched with the bulge structure 10 of the outer wall surface of the pump body 2 or the groove structure 11 of the inner wall surface of the pump body 2 is matched with the bulge structure 10 of.

Specifically, the middle of the limiting sleeve 1 penetrates through a pump rod 3, a rod spring 4 is sleeved on the pump rod 3, and the pump rod 3 is a cross hollow tube; the upper end surface and the lower end surface of the rod spring 4 are respectively contacted with the pump rod 3 and the sliding sleeve 5, the sliding sleeve 5 is sleeved at the lower end of the pump rod 3, the lower end of the sliding sleeve 5 is matched with the thimble 7, the lower end of the thimble 7 is sleeved with the thimble spring 8, the lower end of the thimble spring 8 is matched with the ball 9, and the ball 9 is arranged at the lower end of the cavity in the pump body 2; the outer wall surface of the pump body 2 is provided with a ventilation hole 21, and the ventilation hole 21 is a circular through hole.

Specifically, the middle of the limiting sleeve 1 penetrates through a pump rod 3, a rod spring 4 is sleeved on the pump rod 3, the pump rod 3 is a T-shaped hollow tube, the upper end face and the lower end face of the rod spring 4 are respectively contacted with the pump rod 3 and the limiting sleeve 1, a liquid guide tube 6 is matched in the pump rod 3, the lower end of the pump rod 3 is matched with a sliding sleeve 5, and the lower end face of the sliding sleeve 5 is matched with the lower part of the liquid guide tube 6; a partition plate is arranged below the inside of the pump body 2, and a plurality of through holes are formed in the partition plate.

Specifically, protruding structure 10 is annular protruding structure, and groove structure 11 is annular groove structure, and protruding structure 10 and groove structure 11's cross-section is the arcwall face, and protruding structure 10 cooperatees with groove structure 11.

The utility model discloses the working process: the utility model relates to a built-in and general limit structure of external pump body explains in the course of the work, combines the figure.

For an internal pump body: the outer part of the upper part of the pump rod 3 is sleeved with a pipe body part of the pressing head, close fit is completed by interference force of interference fit, and after connection is completed, emulsion sucked by a pump body structure pump can be extruded out of the pressing head; the lower end of the pump body 2 is connected to the bottom of the emulsion bottle through a hose; through constantly pressing the press head, realize the pump of emulsion, specific process is: the pressing head is pressed, so that the pump rod 3 continuously moves up and down (restoring force is generated by the rod spring 4), the up-and-down movement of the pump rod 3 drives the up-and-down movement of the sliding sleeve 5 and the ejector pin 7, the ejector pin spring 8 is sleeved under the ejector pin 7, and during the up-and-down movement, the ejector pin spring 8 is compressed and restored in a matched mode, and when the sliding sleeve 5 moves up, due to the characteristic that the middle of the sliding sleeve is small and the two ends of the sliding sleeve are large, the sliding sleeve is sealed with the pump body 2, vacuum suction force is.

For an outboard pump body: the pipe body part inserted into the pressing head is embedded into the opening at the upper part of the pump rod 3, the pipe body is fastened in an interference fit mode, and after connection is completed, emulsion pumped up by a pump body structure can be extruded out of the pressing head; the lower end of the pump body 2 is connected to the bottom of the emulsion bottle through a hose; through constantly pressing the press head, realize the pump of emulsion, specific process is: the pressing head is pressed, so that the pump rod 3 continuously moves up and down (restoring force is generated by the rod spring 4), the limiting sleeve 1 is fixedly connected with the pump body 2, therefore, the liquid guide pipe 6 and the sliding sleeve 5 move up and down along with the liquid guide pipe 6, when the liquid guide pipe 6 moves down, emulsion flows in from a transverse through hole at the lower end of the liquid guide pipe 6 and is conveyed to the upper part through an internal channel, and when the sliding sleeve 5 returns upwards, the liquid guide pipe is sealed with the pump body 2 due to the characteristics of small middle and large two ends, vacuum suction force is generated.

The utility model discloses, can accomplish the pump pole and the pole spring on it spacing, the pump of completion emulsion pumps the use of spare parts such as cooperation pump pole. Stop collar and pump body interference fit in this application, connect closely, it is more reliable.

The above-mentioned embodiment is right the utility model discloses an explanation, it is not right the utility model discloses a limited, any right the scheme after the simple transform of the utility model all belongs to the protection scope of the utility model.

Claims (4)

1. The utility model provides a limit structure that built-in and external pump body are general which characterized in that: the pump comprises a limiting sleeve (1) and a pump body (2), wherein the limiting sleeve (1) is in interference fit with the pump body (2); the pump is characterized in that a groove structure (11) is arranged on the inner wall surface of the lower end of the limiting sleeve (1) or the inner wall surface of the upper end of the pump body (2), a protrusion structure (10) is arranged on the outer wall surface of the upper end of the pump body (2) or the outer wall surface of the lower end of the limiting sleeve (1), the groove structure (11) of the inner wall surface of the limiting sleeve (1) is matched with the protrusion structure (10) of the outer wall surface of the pump body (2) or the groove structure (11) of the inner wall surface of the pump body (2) is matched with the protrusion structure.

2. The structure of claim 1, wherein the limiting structure is used for both internal and external pump bodies: the middle of the limiting sleeve (1) penetrates through the pump rod (3), the pump rod (3) is sleeved with a rod spring (4), and the pump rod (3) is a cross hollow tube; the upper end face and the lower end face of the rod spring (4) are respectively contacted with the pump rod (3) and the sliding sleeve (5), the sliding sleeve (5) is sleeved at the lower end of the pump rod (3), the lower end of the sliding sleeve (5) is matched with the ejector pin (7), the lower end of the ejector pin (7) is sleeved with the ejector pin spring (8), the lower end of the ejector pin spring (8) is matched with the ball (9), and the ball (9) is arranged at the lower end of the inner cavity of the pump body (2); and the outer wall surface of the pump body (2) is provided with a ventilation hole (21), and the ventilation hole (21) is a circular through hole.

3. The structure of claim 1, wherein the limiting structure is used for both internal and external pump bodies: the middle of the limiting sleeve (1) penetrates through the pump rod (3), a rod spring (4) is sleeved on the pump rod (3), the pump rod (3) is a T-shaped hollow tube, the upper end face and the lower end face of the rod spring (4) are respectively contacted with the pump rod (3) and the limiting sleeve (1), a liquid guide tube (6) is matched inside the pump rod (3), the lower end of the pump rod (3) is matched with the sliding sleeve (5), and the lower end face of the sliding sleeve (5) is matched with the lower part of the liquid guide tube (6); a partition plate is arranged below the inside of the pump body (2), and a plurality of through holes are formed in the partition plate.

4. The structure of claim 1, wherein the limiting structure is used for both internal and external pump bodies: protruding structure (10) are annular protruding structure, and groove structure (11) are annular groove structure, and the cross-section of protruding structure (10) and groove structure (11) is the arcwall face, and protruding structure (10) cooperate with groove structure (11).

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