CN102536730A - Constant-pressure inflator - Google Patents
Constant-pressure inflator Download PDFInfo
- Publication number
- CN102536730A CN102536730A CN2010105955576A CN201010595557A CN102536730A CN 102536730 A CN102536730 A CN 102536730A CN 2010105955576 A CN2010105955576 A CN 2010105955576A CN 201010595557 A CN201010595557 A CN 201010595557A CN 102536730 A CN102536730 A CN 102536730A
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- China
- Prior art keywords
- elastic washer
- pressure
- steel ball
- air
- pump
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The invention provides a constant-pressure inflator, which comprises an inflator body, an air tube and a decompression valve. An air tank is arranged in the inflator body, pressure of the air tank can be changed by the aid of movement of a piston, the air tube is communicated with the air tank and connected to an inflated object, the decompression valve comprises a shell, an elastic washer, a steel ball and a pressure spring, the shell is arranged on the inflator body, an air channel which is communicated with the air tank is arranged in the shell, the elastic washer is arranged on a side, which is close to the air tank, of the air channel, and the outer side wall of the elastic washer is sealed with the air channel; and the steel ball is arranged on a side, which faces to the air channel, of the elastic washer, and the pressure spring is abutted onto the steel ball and leads the steel ball to cling to the edge of an inner ring of the elastic washer. Due to the decompression valve, when the pressure of air in the air tank achieves a preset value, the air can be released via the decompression valve, at the moment, pressure in the inflated object can be determined to achieve a preset value, manual judgment by means of repeatedly squeezing the object is omitted, and the constant-pressure inflator is convenient in use.
Description
Technical field
The present invention relates to a kind of pump, the especially a kind of pump that can set highest pressure.
Background technique
Pump is the article that often can use in a kind of people's daily life, and its structure is fairly simple usually, function singleness.When inflating for through pump elastic articles such as tire, ball, people need ceaselessly to push article with hand, judge according to the hardness of article whether gas beats foot or excess, and are pretty troublesome.
Summary of the invention
The present invention is directed to existing pump in the process of inflating, need people not stop manually to detect the trouble of degree of inflation, propose a kind of pump of setting highest pressure that has.
The technological scheme that the present invention adopted is: a kind of level pressure pump; Comprise the pump body, comprise the gas tank that can change pressure through the motion of piston in the said pump body, said pump also comprises the tracheae that is communicated with gas tank; Said tracheae is connected to and is inflated object; This level pressure pump also comprises reduction valve, and this reduction valve comprises: be arranged on the housing on the pump body, have the gas circuit that is communicated with gas tank in the said housing; Be arranged on the elastic washer near gas tank one side of said gas circuit, the outer side wall of said elastic washer and gas circuit sealing; Be arranged on elastic washer towards the steel ball of gas circuit one side, be resisted against on the steel ball and make steel ball be fitted in the pressure spring at elastic washer inner ring edge.
Preferably, the bolt that has been threaded on the said housing, the portion slightly that an end of said pressure spring is resisted against on the steel ball, the other end is resisted against bolt.
Preferably, be communicated with whistle on the said gas circuit.
The beneficial effect that the present invention reached is: through the setting of reduction valve; When gas reaches predetermined pressure in the gas tank, promptly lose heart through reduction valve, can learn that the pressure that is inflated in the object reaches predetermined value this moment; Do not need to overstock article repeatedly and carry out artificial judgment, easy to use.The setting of bolt can so that the setting pressure of reduction valve can regulate.Can send sound when whistle has air-flow in gas circuit, be convenient to people learn inflate enough.
Description of drawings
Through the more specifically explanation of the preferred embodiments of the present invention shown in the accompanying drawing, above-mentioned and other purpose, characteristic and advantage of the present invention will be more clear.Reference character identical in whole accompanying drawings is indicated identical part.Painstakingly do not draw accompanying drawing, focus on illustrating purport of the present invention by actual size equal proportion convergent-divergent.
Fig. 1 is the sectional view of the level pressure pump of the present invention's proposition.
Embodiment
Referring to level pressure pump shown in Figure 1; With existing pump similarly be; It has pump body 10; Comprise the gas tank 11 that can change pressure through the motion of piston in the said pump body 10, said pump also comprises the tracheae 12 that is communicated with gas tank 11, and said tracheae 12 is connected to and is inflated object.
The level pressure pump that the present invention proposes also comprises the reduction valve 2 that is communicated with gas tank 11.This reduction valve 2 comprises the housing 21 that is arranged on the pump body 10, has the gas circuit 23 that is communicated with gas tank 11 in the said housing 21; Also comprise the elastic washer 22 that is arranged on said gas circuit 23, the outer side wall of said elastic washer 22 and gas circuit 23 sealings near gas tank 11 1 sides; And be arranged on elastic washer 22 towards the steel ball 24 of gas circuit 23 1 sides, be resisted against on the steel ball 24 and make steel ball 24 be fitted in the pressure spring 25 at elastic washer 22 inner ring edges.Said housing 21 can be made from a variety of materials with elastic washer 22, for example housing 21 for metal, elastic washer 22 for to inlay rubber wherein, also can be one-body molded by same material, for example be the rubber material.
The bolt 26 that has been threaded on the said housing 21, the portion slightly that an end of said pressure spring 25 is resisted against on the steel ball 24, the other end is resisted against bolt 26.Can adjust the decrement of pressure spring 25 through swivel bolt 26, promptly adjust the pressure of pressure spring 25.
Also be communicated with whistle 27 on the said gas circuit 23, in case the air communication mistake is arranged in the gas circuit 23, whistle 27 is just blowed.
Above-mentioned working principle with pump of reduction valve 2 is; Need before using to give pressure spring 25 setting pressures through bolt 26; Pressure spring 25 is with preset propagation of pressure to steel ball 24; Steel ball 24 fits tightly the inner ring edge at elastic washer 22, thereby with gas circuit 23 relative gas tank 11 sealings, does not have air-flow in the gas circuit 23; The method for using of pump is identical with existing method; When the pressure in the gas tank 11 raise gradually, the pressure that acts on the steel ball 24 also increased gradually, got into the gas circuits 23 from gas tank 11 until 22 separation of steel ball 24 relative resilient packing rings, air-flow; Pressure in this moment gas tank 11 is by pressure release and remain on a certain fixed pressure; Inflow gas in the gas circuit 23, whistle 27 are blowed, and the user learnt and inflated enough this moment, can stop to inflate.
Though the present invention with preferred embodiment openly as above; But it is not to be used for limiting claim; Any those skilled in the art are not breaking away from the spirit and scope of the present invention; Can make possible change and modification, so protection scope of the present invention should be as the criterion with the scope that claim of the present invention was defined.
Claims (4)
1. a level pressure pump comprises the pump body, comprises the gas tank that can change pressure through the motion of piston in the said pump body; Said pump also comprises the tracheae that is communicated with gas tank; Said tracheae is connected to and is inflated object, it is characterized in that, this level pressure pump also comprises reduction valve; This reduction valve comprises: be arranged on the housing on the pump body, have the gas circuit that is communicated with gas tank in the said housing; Be arranged on the elastic washer near gas tank one side of said gas circuit, the outer side wall of said elastic washer and gas circuit sealing; Be arranged on elastic washer towards the steel ball of gas circuit one side, be resisted against on the steel ball and make steel ball be fitted in the pressure spring at elastic washer inner ring edge.
2. level pressure pump as claimed in claim 1 is characterized in that said housing and elastic washer are one-body molded.
3. level pressure pump as claimed in claim 1 is characterized in that, the bolt that has been threaded on the said housing, the portion slightly that an end of said pressure spring is resisted against on the steel ball, the other end is resisted against bolt.
4. level pressure pump as claimed in claim 1 is characterized in that, is communicated with whistle on the said gas circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105955576A CN102536730A (en) | 2010-12-17 | 2010-12-17 | Constant-pressure inflator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105955576A CN102536730A (en) | 2010-12-17 | 2010-12-17 | Constant-pressure inflator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102536730A true CN102536730A (en) | 2012-07-04 |
Family
ID=46344492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105955576A Pending CN102536730A (en) | 2010-12-17 | 2010-12-17 | Constant-pressure inflator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102536730A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591012A (en) * | 2018-06-22 | 2018-09-28 | 张卫 | Hand Miniature inflating pump |
| CN109505752A (en) * | 2018-12-27 | 2019-03-22 | 昆山十全塑胶五金产品有限公司 | Can preset pressure value inflator |
| CN112893807A (en) * | 2021-01-25 | 2021-06-04 | 绍兴汇铭汽配有限公司 | Low-pressure casting machine |
-
2010
- 2010-12-17 CN CN2010105955576A patent/CN102536730A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591012A (en) * | 2018-06-22 | 2018-09-28 | 张卫 | Hand Miniature inflating pump |
| CN109505752A (en) * | 2018-12-27 | 2019-03-22 | 昆山十全塑胶五金产品有限公司 | Can preset pressure value inflator |
| CN109505752B (en) * | 2018-12-27 | 2023-12-12 | 昆山十全塑胶五金产品有限公司 | Inflator capable of presetting pressure value |
| CN112893807A (en) * | 2021-01-25 | 2021-06-04 | 绍兴汇铭汽配有限公司 | Low-pressure casting machine |
| CN112893807B (en) * | 2021-01-25 | 2022-07-08 | 绍兴汇铭汽配有限公司 | Low-pressure casting machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120704 |