CN217029198U - Can improve sealing performance's hand oil drum pump - Google Patents
Can improve sealing performance's hand oil drum pump Download PDFInfo
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- CN217029198U CN217029198U CN202220507192.5U CN202220507192U CN217029198U CN 217029198 U CN217029198 U CN 217029198U CN 202220507192 U CN202220507192 U CN 202220507192U CN 217029198 U CN217029198 U CN 217029198U
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- valve seat
- flat gasket
- cylinder body
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- sealing flat
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Abstract
The utility model relates to a hand-press oil barrel pump capable of improving sealing performance, which comprises a valve seat body, a valve seat, a piston assembly, a movable valve plate, a sealing flat gasket and a cylinder body, wherein the upper end of the valve seat body is communicated with the cylinder body, and the lower end of the valve seat body is communicated with a liquid pumping pipe; the valve seat is arranged in the valve seat body, and the sealing flat gasket is positioned between the valve seat and the cylinder body; the piston assembly extends into the cylinder body from the upper end of the cylinder body; the sealing flat gasket and the valve seat are designed into a whole or not; when the sealing flat gasket and the valve seat are not integrated, an inner flanging is arranged at the contact part of the cylinder body and the sealing flat gasket, and the pressing area of the cylinder body and the sealing flat gasket is increased by the contact of the inner flanging and the sealing flat gasket; or, the valve seat body is provided with steps, the valve seat is arranged and restrained in a circle enclosed by the steps, the bottom surface of the sealing flat gasket is pressed on the valve seat and the steps, and the cylinder body is pressed on the top surface of the sealing flat gasket. The utility model improves the sealing property between the cylinder body and the sealing flat gasket, and has great market application and popularization value.
Description
Technical Field
The utility model relates to a hand-pressed oil barrel pump capable of improving sealing performance, and belongs to the technical field of hand-pressed oil barrel pumps.
Background
When the hand-pressed oil barrel pump works, negative pressure is generated, air in the pump is discharged, and liquid in the barrel is sucked and pumped out. The existing hand-pressed oil barrel pump comprises a valve seat body, a valve seat, a piston assembly, a movable valve plate, a sealing flat gasket and a cylinder body, wherein when the valve seat is normally installed, the radial space is large when the valve seat is installed, the valve seat is easy to move, when the cylinder body is tightly pressed with the valve seat body, the sealing between the cylinder body and the sealing flat gasket cannot be realized due to the fact that the valve seat moves to one side, and the sealing between the cylinder body and the sealing flat gasket can not be realized, so that enough negative pressure cannot be generated to extract liquid upwards in the lifting process of the piston.
Therefore, the structure of the prior manual oil barrel pump has the phenomena of poor sealing and low oil pumping efficiency. In view of the shortcomings of the prior art, there is a need to optimize and improve the sealing structure to achieve the purpose of improving the oil pumping efficiency.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems in the prior art and provides a hand-pressed oil tank pump which is reasonable in structure, easy to produce and manufacture and convenient to use and can improve the sealing performance.
The purpose of the utility model is realized as follows: a hand-press oil barrel pump capable of improving sealing performance comprises a valve seat body, a valve seat, a piston assembly, a movable valve plate, a sealing flat gasket and a cylinder body, wherein the upper end of the valve seat body is communicated with the cylinder body, and the lower end of the valve seat body is communicated with a liquid pumping pipe; the valve seat is arranged in the valve seat body, and the sealing flat gasket is positioned between the valve seat and the cylinder body; the piston assembly extends into the cylinder body from the upper end of the cylinder body;
the method is characterized in that: the sealing flat gasket and the valve seat are designed into a whole or not;
when the sealing flat gasket and the valve seat are not integrated, an inward flanging is arranged at the contact part of the cylinder body and the sealing flat gasket, and the pressing area of the cylinder body and the sealing flat gasket is increased through the contact of the inward flanging and the sealing flat gasket; or, the valve seat body is provided with steps, the valve seat is arranged and restrained in a circle enclosed by the steps, the bottom surface of the sealing flat gasket is tightly pressed on the valve seat and the steps, and the cylinder body is tightly pressed on the top surface of the sealing flat gasket.
The height of the step is less than or equal to the height of the valve seat.
The cylinder body is screwed and fixedly connected with the top thread of the valve seat body, and the liquid pumping pipe is screwed and fixedly connected with the bottom thread of the valve seat body.
The utility model has reasonable structure, easy production and manufacture and convenient use, improves the prior hand-pressed oil barrel pump, can design the sealing flat gasket and the valve seat into a whole or not in order to improve the sealing property, and ensures the reliable sealing between the cylinder body and the sealing flat gasket by making the sealing flat gasket and the valve seat into a whole. When the sealing flat gasket and the valve seat are not integrated, two modes can be provided, firstly, an inward flanging can be formed at the contact part of the cylinder body and the sealing flat gasket, and more pressing area is formed between the sealing flat gasket and the valve seat, so that the reliable sealing between the cylinder body and the sealing flat gasket is ensured; secondly, can establish a step on the valve seat body, restrain the disk seat, make the cylinder body and seal between the flat pad have the even area that compresses tightly of round to guarantee the reliable sealing between cylinder body and the sealed flat pad.
In the specific design, the height of the step may be designed to be less than or equal to the height of the valve seat. The cylinder body is fixedly connected with the top thread of the valve seat body in a screwing mode, and the liquid pumping pipe is fixedly connected with the bottom thread of the valve seat body in a screwing mode, so that the fastening performance is improved.
The utility model improves the sealing property between the cylinder body and the sealing flat gasket, and has great market application and popularization value.
Drawings
FIG. 1 is a schematic structural view of example 1;
FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;
FIG. 3 is a schematic view of the structure of embodiment 2;
FIG. 4 is an enlarged view of the structure at B in FIG. 3;
FIG. 5 is a schematic view of the structure of embodiment 3;
FIG. 6 is an enlarged view of the structure at C in FIG. 5;
FIG. 7 is a schematic diagram of a prior art structure;
FIG. 8 is an enlarged view of the structure of FIG. 7 at D;
wherein: the valve comprises a valve seat body 1, a valve seat 2, a piston assembly 3, a movable valve plate 4, a sealing flat gasket 5, a cylinder body 6, a liquid suction pipe 7, an inward flanging 8 and a step 9.
Detailed Description
The utility model is further described with reference to the accompanying drawings and the description thereof.
Example 1
As shown in fig. 1 and 2, the hand-press oil barrel pump capable of improving the sealing performance comprises a valve seat body 1, a valve seat 2, a piston assembly 3, a movable valve sheet 4, a sealing flat gasket 5 and a cylinder body 6, wherein the upper end of the valve seat body 1 is communicated with the cylinder body 6, and the lower end of the valve seat body is communicated with a liquid pumping pipe 7; the valve seat 2 is arranged in the valve seat body 1, and the sealing flat gasket 5 is positioned between the valve seat 2 and the cylinder body 6; the piston assembly 3 extends into the cylinder 6 from the upper end of the cylinder 6; the sealing flat gasket 5 and the valve seat 2 are designed into a whole, so that reliable sealing between the cylinder body 6 and the sealing flat gasket 5 is ensured.
Example 2
As shown in fig. 3 and 4, the hand-press oil barrel pump capable of improving the sealing performance comprises a valve seat body 1, a valve seat 2, a piston assembly 3, a movable valve plate 4, a sealing flat gasket 5 and a cylinder body 6, wherein the upper end of the valve seat body 1 is communicated with the cylinder body 6, and the lower end of the valve seat body is communicated with a liquid pumping pipe 7; the valve seat 2 is arranged in the valve seat body 1, and the sealing flat gasket 5 is positioned between the valve seat 2 and the cylinder body 6; the piston assembly 3 extends into the cylinder 6 from the upper end of the cylinder 6; the sealing flat gasket 5 and the valve seat 2 are not a whole, an inward flange 8 is arranged at the contact position of the cylinder body 6 and the sealing flat gasket 5, the inward flange 8 is in contact with the sealing flat gasket 5, the pressing area of the cylinder body 6 and the sealing flat gasket 5 is increased, and reliable sealing between the cylinder body 6 and the sealing flat gasket 5 is guaranteed.
Example 3
As shown in fig. 5 and 6, the hand-press oil barrel pump capable of improving the sealing performance comprises a valve seat body 1, a valve seat 2, a piston assembly 3, a movable valve sheet 4, a sealing flat gasket 5 and a cylinder body 6, wherein the upper end of the valve seat body 1 is communicated with the cylinder body 6, and the lower end of the valve seat body is communicated with a liquid pumping pipe 7; the valve seat 2 is arranged in the valve seat body 1, and the sealing flat gasket 5 is positioned between the valve seat 2 and the cylinder body 6; the piston assembly 3 extends into the cylinder 6 from the upper end of the cylinder 6; the sealing flat gasket 5 and the valve seat 2 are not a whole, the valve seat body 1 is provided with the step 9, the valve seat 2 is arranged in and constrained in a circle enclosed by the step 9, the bottom surface of the sealing flat gasket 5 is tightly pressed on the valve seat 2 and the step 9, the cylinder body 6 is tightly pressed on the top surface of the sealing flat gasket 5, so that a circle of uniform pressing area is formed between the cylinder body 6 and the sealing flat gasket 5, and reliable sealing between the cylinder body 6 and the sealing flat gasket 5 is ensured. In a particular design, the height of the step 9 is less than or equal to the height of the valve seat 2.
In embodiments 1, 2, and 3, the cylinder 6 is screwed and fixed to the top of the valve seat body 1, and the liquid suction pipe 7 is screwed and fixed to the bottom of the valve seat body 1.
Claims (3)
1. A hand-press oil barrel pump capable of improving sealing performance comprises a valve seat body (1), a valve seat (2), a piston assembly (3), a movable valve plate (4), a sealing flat gasket (5) and a cylinder body (6), wherein the upper end of the valve seat body (1) is communicated with the cylinder body (6), and the lower end of the valve seat body is communicated with an oil pumping pipe (7); the valve seat (2) is arranged in the valve seat body (1), and the sealing flat gasket (5) is positioned between the valve seat (2) and the cylinder body (6); the piston assembly (3) extends into the cylinder body (6) from the upper end of the cylinder body (6);
the method is characterized in that: the sealing flat gasket (5) and the valve seat (2) are designed into a whole or not;
when the sealing flat gasket (5) and the valve seat (2) are integrated, an inward flanging (8) is arranged at the contact part of the cylinder body (6) and the sealing flat gasket (5), and the pressing area of the cylinder body (6) and the sealing flat gasket (5) is increased by the contact of the inward flanging (8) and the sealing flat gasket (5); or, the valve seat body (1) is provided with the step (9), the valve seat (2) is arranged and restrained in a circle surrounded by the step (9), the bottom surface of the sealing flat gasket (5) is pressed on the valve seat (2) and the step (9), and the cylinder body (6) is pressed on the top surface of the sealing flat gasket (5).
2. A hand pump for increasing the sealing of an oil tank as claimed in claim 1, wherein: the height of the step (9) is less than or equal to the height of the valve seat (2).
3. A hand pump for dispensing liquids as claimed in claim 1 with improved sealing characteristics, wherein: the cylinder body (6) is fixedly connected with the top thread of the valve seat body (1) in a screwing mode, and the liquid pumping pipe (7) is fixedly connected with the bottom thread of the valve seat body (1) in a screwing mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220507192.5U CN217029198U (en) | 2022-03-10 | 2022-03-10 | Can improve sealing performance's hand oil drum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220507192.5U CN217029198U (en) | 2022-03-10 | 2022-03-10 | Can improve sealing performance's hand oil drum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217029198U true CN217029198U (en) | 2022-07-22 |
Family
ID=82453339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220507192.5U Active CN217029198U (en) | 2022-03-10 | 2022-03-10 | Can improve sealing performance's hand oil drum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217029198U (en) |
-
2022
- 2022-03-10 CN CN202220507192.5U patent/CN217029198U/en active Active
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