CN2136675Y - Multifunction hydraulic resistance device - Google Patents
Multifunction hydraulic resistance device Download PDFInfo
- Publication number
- CN2136675Y CN2136675Y CN 92234054 CN92234054U CN2136675Y CN 2136675 Y CN2136675 Y CN 2136675Y CN 92234054 CN92234054 CN 92234054 CN 92234054 U CN92234054 U CN 92234054U CN 2136675 Y CN2136675 Y CN 2136675Y
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- CN
- China
- Prior art keywords
- oil
- valve
- resistance
- check valve
- hydraulic
- Prior art date
- 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.)
- Expired - Lifetime
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Abstract
The utility model relates to a hydraulic resistance device for sport body-building training equipment. The shell of a hydraulic oil tank is provided with a throttling valve, an oil container, a unidirectional valve, a spill valve, a connecting oil passage, etc. to constitute the hydraulic resistance device. The utility model has miscellaneous functions such as constant resistance, steplessly regulated value of a resistance, the resistance changing along a velocity, selectable resistance direction, etc. All the elements shares one shell. The utility model has the advantages of compact structure, good manufacturability and low cost. When used, the resistance device which can increase the functions of fitness apparatus, can simplify the structure and can enhance a training effect effectively.
Description
The utility model relates to the fitness training equipment in a kind of human muscle of exercise and joint, particularly a kind of multifunction hydraulic resistance gauge.
The flowed friction device that uses on the exercise equipment generally is made up of oil cylinder and choke valve at present.Its resistance increases along with the increase of piston movement speed, and the resistance size and Orientation all can not be transferred.Therefore cause and use inconvenience, training effect is subjected to certain influence.
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of multifunction hydraulic resistance gauge with bi-directional constant resistance, two-way adjustable resistance, unidirectional resistance is provided, and its compact conformation is adjusted easy to use.
Technical solution of the present utility model is as follows: a kind of multifunction hydraulic resistance gauge, form by hydraulic jack, check valve, overflow valve, choke valve and oil container, it is characterized in that: on the housing of single-piston rod oil cylinder, be equipped with two check valves, an overflow valve, a choke valve, oil container be connected oil circuit, one of them check valve oil-in connects oil cylinder rodless cavity, oil-out connects cylinder rod chamber.Another check valve oil-in connects oil container, and oil-out connects oil cylinder rodless cavity; Overflow valve is connected with choke valve, and total oil-in connects cylinder rod chamber, and total oil-out connects oil container.The shared housing of above-mentioned all elements.Described check valve oil inlet end is equipped with can be with the push rod of spool jack-up; Leave between described check valve and overflow valve valve pocket and the valve body at interval, the hydraulic fluid port at top is communicated with the passage of root.Compressed Gas is arranged at described oil container top, and the bottom is a hydraulic oil, is separated by barrier film between the two.On the described cylinder cover, leave enough spaces, configurable pressure monitoring device.
The utility model compared with prior art, it is constant to have a resistance, the stepless adjustment of the big I of resistance, resistance can change with velocity variations, and drag direction such as can select at multiple function, because the shared housing of all elements, so this apparatus structure compactness, good manufacturability, with low cost.
Below in conjunction with accompanying drawing most preferred embodiment of the present utility model is described in further detail:
Accompanying drawing 1 is a structural representation of the present utility model.
On the housing of single-piston rod oil cylinder, arrange check valve (2), check valve (3), overflow valve (4), choke valve (5), oil container (6).The shared housing of each element.
Check valve (2) oil-in connects oil cylinder rodless cavity, and oil-out connects cylinder rod chamber.
Check valve (3) oil-in connects oil container, and oil-out connects oil cylinder rodless cavity.
Overflow valve (4) is connected with choke valve (5), and total oil-in connects cylinder rod chamber, and total oil-out connects oil container.
Oil container is an airtight hydrostatic column, and Compressed Gas is arranged at its top, and the bottom is a hydraulic oil.There is flexible film to separate between the two.All the other element internals all are full of hydraulic oil.
The utility model also comprises connector (7), technology sprue (8) and necessary seal.
Piston (1) is preferably 2:1 with the ratio of the cross-sectional area of piston rod.
At check valve (2) and check valve (3) oil inlet end the push rod of being with handle and screw thread is housed all.When push rod was screwed into, it can make check valve become passage spool jack-up.
The utlity model has following function.
1, bi-directional constant resistance.
Full trrottle, overflow valve transfers to certain pressure.When piston rod stretched out under external force, check valve (2) was closed.The hydraulic oil of rod chamber flows into oil container (6) through overflow valve (4) and choke valve (5).The pressure of rod chamber is the overflow valve setting.Simultaneously, the hydraulic oil of oil container mends rodless cavity through check valve (3).Because the pressure of Compressed Gas is very low in the oil container, the pressure of rodless cavity can be ignored.
If the set pressure of overflow valve is P, piston area is A ', and the resistance that then acts on piston is: F
1=P(A-A ') when piston rod is regained under external force, check valve (3) is closed.The hydraulic oil of rodless cavity flows into rod chamber through check valve (2).Because when piston rod was regained, the volume-diminished amount of rodless cavity was greater than the volume increase of rod chamber, rod chamber still has hydraulic oil to flow into oil container through overflow valve and choke valve.At this moment the pressure of rod chamber and rodless cavity is the overflow valve setting.The resistance that acts on piston is: F
2=PA ')
Because A=2A ', so F
1=F
2
2, two-way resistance, the resistance size is directly proportional with piston rod movement speed.
The overflow valve standard-sized sheet, the opening amount of flow regulating valve is a certain value.Under the effect of choke valve, resistance is directly proportional with piston rod movement speed.
3, unidirectional resistance
When the push rod of check valve (2) was screwed into, check valve (2) became passage.Under this state, when piston rod was regained, Resistance Value was constant.When piston rod stretched out, the hydraulic oil of rod chamber can directly enter rodless cavity by check valve (2), so resistance is zero.
When the push rod of check valve (3) was screwed into, check valve (3) became passage.Under this state, when piston rod stretched out, Resistance Value was constant.When piston rod was regained, the hydraulic oil of rodless cavity can directly enter oil container by check valve (3), so resistance is zero.
Realized the unidirectional resistance of direction on two thus.
On cylinder cover, leave enough spaces, configurable pressure monitoring device.The configurable flow monitoring device in enough big space is arranged between overflow valve and choke valve.
Claims (4)
1, a kind of multifunction hydraulic resistance gauge, by hydraulic jack, check valve, overflow valve, choke valve, oil container be connected oil circuit and form, it is characterized in that: two check valves are installed, an overflow valve on the housing of single-piston rod oil cylinder, a choke valve, an oil container; One of them check valve oil-in connects oil cylinder rodless cavity, and oil-out connects cylinder rod chamber; Another check valve oil-in connects oil container, and oil-out connects oil cylinder rodless cavity; Overflow valve is connected with choke valve, and total oil-in connects cylinder rod chamber, and total oil-out connects oil container; The shared housing of above-mentioned all elements.
2, multifunction hydraulic resistance gauge as claimed in claim 1 is characterized in that: described check valve oil inlet end is equipped with can be with the push rod of spool jack-up; Leave between described check valve and overflow valve valve pocket and the valve body at interval, the hydraulic fluid port at top is communicated with the passage of root.
3, multifunction hydraulic resistance gauge as claimed in claim 1 is characterized in that: Compressed Gas is arranged at described oil container top, and the bottom is a hydraulic oil, is separated by barrier film between the two.
4, multifunction hydraulic resistance gauge as claimed in claim 1 is characterized in that: leave enough spaces on cylinder cover, configurable pressure monitoring device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92234054 CN2136675Y (en) | 1992-09-29 | 1992-09-29 | Multifunction hydraulic resistance device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92234054 CN2136675Y (en) | 1992-09-29 | 1992-09-29 | Multifunction hydraulic resistance device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2136675Y true CN2136675Y (en) | 1993-06-23 |
Family
ID=33776224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92234054 Expired - Lifetime CN2136675Y (en) | 1992-09-29 | 1992-09-29 | Multifunction hydraulic resistance device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2136675Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107335186A (en) * | 2016-12-24 | 2017-11-10 | 重庆都英科技有限公司 | Hydraulic safe chest-developer |
| CN109139582A (en) * | 2018-09-20 | 2019-01-04 | 南京工业职业技术学院 | A kind of fitness equipment based on hydraulic system |
-
1992
- 1992-09-29 CN CN 92234054 patent/CN2136675Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107335186A (en) * | 2016-12-24 | 2017-11-10 | 重庆都英科技有限公司 | Hydraulic safe chest-developer |
| CN109139582A (en) * | 2018-09-20 | 2019-01-04 | 南京工业职业技术学院 | A kind of fitness equipment based on hydraulic system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |