CN210365042U - Emulsion pump with body provided with avoiding cavity position - Google Patents
Emulsion pump with body provided with avoiding cavity position Download PDFInfo
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- CN210365042U CN210365042U CN201920757149.2U CN201920757149U CN210365042U CN 210365042 U CN210365042 U CN 210365042U CN 201920757149 U CN201920757149 U CN 201920757149U CN 210365042 U CN210365042 U CN 210365042U
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- piston
- cavity
- avoidance
- cavity position
- way valve
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Abstract
A lotion pump with an avoidance cavity position on a body comprises the body, an auxiliary column and a piston, wherein a one-way valve cavity is arranged at the lower end of the body; an avoidance cavity position is arranged at the position, adjacent to the one-way valve cavity, of the inner cavity of the body; the lower part of the piston is matched with the avoidance cavity position, and the upper part of the piston is matched with the inner wall of the body at the upper part of the avoidance cavity position. The arrangement of the cavity avoiding position reduces the interference magnitude between the lower part of the piston and the cavity avoiding position in a locking state; after the piston is stored and the elasticity of the piston is kept, the suction force during design is kept when the piston is used after being unlocked.
Description
Technical Field
The utility model relates to a lotion pump.
Background
In the prior art, the emulsion pump comprises a press head, a lock cover, threads, a body, a main column, an auxiliary column, a piston, a spring and a glass ball, wherein the inner wall of the body is cylindrical, and the interference magnitude between the piston and the inner wall of the body is 0.20 mm when the press head and the lock cover are locked. There are problems in that: the product is in a locked state before being transported and used by consumers in the market; the contact part of the piston and the body is always in a compressed and contracted state. The actual interference is reduced, and the suction force is unstable or is not normal when the consumer uses the product.
SUMMERY OF THE UTILITY MODEL
The utility model aims at: the emulsion pump with the body provided with the avoiding cavity position has the characteristics of keeping the elasticity of the piston and stabilizing the suction force.
The utility model discloses a realize like this: the utility model provides a body sets up emulsion pump of dodging chamber position, includes body, auxiliary column and piston, and the lower extreme of body is equipped with one-way valve chamber, and under the closure state, the lower extreme of auxiliary column stretches into in the one-way valve chamber upper end, piston and body inner wall interference fit, and its special character lies in: an avoidance cavity position is arranged at the position, adjacent to the one-way valve cavity, of the inner cavity of the body;
the lower part of the piston is matched with the avoidance cavity position, and the upper part of the piston is matched with the inner wall of the body at the upper part of the avoidance cavity position.
The emulsion pump with the body provided with the avoiding cavity position is characterized in that: the avoidance cavity is in a cone frustum shape.
The emulsion pump with the body provided with the avoiding cavity position is characterized in that: the avoidance cavity comprises a cone frustum-shaped part and a cylindrical part positioned at the lower part of the cone frustum-shaped part;
the lower portion of the piston is in interference fit with the cylindrical portion.
The emulsion pump with the body provided with the avoiding cavity position is characterized in that: the interference between the lower part of the piston and the avoidance cavity position is smaller than that between the lower part of the piston and the avoidance cavity position.
The utility model relates to a lotion pump with a body provided with an avoiding cavity position, which is characterized in that the interference magnitude between the lower part of a piston and the avoiding cavity position is reduced in a locking state due to the arrangement of the avoiding cavity position; after the piston is stored and the elasticity of the piston is kept, the suction force during design is kept when the piston is used after being unlocked.
Drawings
Fig. 1 is a cross-sectional view showing the locked state of the present invention.
Fig. 2 is a cross-sectional view of the body of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1, the emulsion pump with the body provided with the avoidance cavity comprises a press head 1, a lock cover 2, threads 3, a body 4, a main column 5, an auxiliary column 6, a piston 7, a spring 8 and a glass ball 9, wherein the press head 1 comprises a liquid inlet pipe 11, a liquid outlet nozzle 12 communicated with the liquid inlet pipe and a locking sleeve 13 surrounding the liquid inlet pipe, and the lock cover 2 comprises a central locking sleeve 21 arranged at the center of a top plate of the lock cover, a guide sleeve 22 arranged in the central locking sleeve and a connecting sleeve 23 surrounding the central locking sleeve; the body 4 comprises a circular ring baffle 41 arranged at the upper part, a one-way valve cavity 42 arranged at the lower end and a step 43 arranged on the one-way valve cavity; the upper end of the body 4 penetrates through a through hole on a top plate of the screw thread 3, the annular baffle 41 is attached to the top plate of the screw thread 3, the central locking sleeve 21 is inserted into the body 4, and the upper end of the body 4 is screwed with the connecting sleeve 23; the upper end of the main column 5 passes through the guide sleeve 22 to be connected with the liquid inlet pipe 11 of the press head 1, the upper end of the auxiliary column 6 is connected with the main column 5, and the piston 7 is arranged on the auxiliary column 6; the lower end of the spring 8 is matched with the step 43, and the upper end of the spring is matched with a spring cavity at the lower end of the auxiliary column 6; in the locked state, the lower end of the auxiliary column 5 is inserted into the one-way valve cavity 41, and the piston 7 is in interference fit with the lower part of the inner wall of the body 4.
An avoidance cavity position 44 is arranged at the position, adjacent to the one-way valve cavity 41, of the inner cavity of the body 4;
the lower part of the piston 7 is matched with the avoidance cavity position 44, and the upper part is matched with the inner wall of the body 4 at the upper part of the avoidance cavity position 44.
The avoidance cavity 44 is in the shape of a truncated cone.
The avoidance cavity portion 44 includes a truncated cone-shaped portion 441 and a cylindrical portion 442 located at a lower portion of the truncated cone-shaped portion;
the lower portion of the piston 7 is interference fitted with the cylindrical portion 442.
The interference magnitude between the lower part of the piston 7 and the avoidance cavity position is 0.08 mm. In practice it will be smaller relative to the upper end.
What has been described above is only a preferred embodiment of the present invention. It should be noted that, for a person skilled in the art, several modifications and variations can be made without departing from the principle of the invention, which is also considered as the protection scope of the invention.
Claims (4)
1. The utility model provides a body sets up emulsion pump of dodging chamber position, includes body, auxiliary column and piston, and the lower extreme of body is equipped with one-way valve chamber, and under the closure state, the lower extreme of auxiliary column stretches into in the one-way valve chamber upper end, piston and body inner wall interference fit, its characterized in that: an avoidance cavity position is arranged at the position, adjacent to the one-way valve cavity, of the inner cavity of the body;
the lower part of the piston is matched with the avoidance cavity position, and the upper part of the piston is matched with the inner wall of the body at the upper part of the avoidance cavity position.
2. The emulsion pump with the body provided with the avoiding cavity position as claimed in claim 1, wherein: the avoidance cavity is in a cone frustum shape.
3. The emulsion pump with the body provided with the avoiding cavity position as claimed in claim 1, wherein: the avoidance cavity comprises a cone frustum-shaped part and a cylindrical part positioned at the lower part of the cone frustum-shaped part;
the lower portion of the piston is in interference fit with the cylindrical portion.
4. A lotion pump with an avoiding cavity on the body as claimed in claim 1, 2 or 3, wherein: the interference magnitude between the lower part of the piston and the avoidance cavity position is smaller than that between the lower part of the piston and the avoidance cavity position and the upper end of the piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920757149.2U CN210365042U (en) | 2019-05-23 | 2019-05-23 | Emulsion pump with body provided with avoiding cavity position |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920757149.2U CN210365042U (en) | 2019-05-23 | 2019-05-23 | Emulsion pump with body provided with avoiding cavity position |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210365042U true CN210365042U (en) | 2020-04-21 |
Family
ID=70261688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920757149.2U Active CN210365042U (en) | 2019-05-23 | 2019-05-23 | Emulsion pump with body provided with avoiding cavity position |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210365042U (en) |
-
2019
- 2019-05-23 CN CN201920757149.2U patent/CN210365042U/en active Active
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| GR01 | Patent grant | ||
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