CN100343157C - Ventilation valve for a hydraulic jack - Google Patents
Ventilation valve for a hydraulic jack Download PDFInfo
- Publication number
- CN100343157C CN100343157C CNB031021638A CN03102163A CN100343157C CN 100343157 C CN100343157 C CN 100343157C CN B031021638 A CNB031021638 A CN B031021638A CN 03102163 A CN03102163 A CN 03102163A CN 100343157 C CN100343157 C CN 100343157C
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- CN
- China
- Prior art keywords
- valve
- oil
- hydraulic jack
- connection
- cap
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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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Abstract
The present invention relates to the structure of a ventilation valve of a hydraulic jack, particularly to a ventilation valve arranged on the outer wall of an oil storage tank of a hydraulic jack. The present invention mainly comprises a valve seat, valve bodies, a valve ball, a cap, etc., wherein the cap is provided with a through hole; an oil chamber used for temporarily storing oil liquid is arranged between the valve seat and the cap; the opening or the closure of a hole between the valve bodies is controlled by the valve ball. When the valve hole is opened, the oil storage tank is communicated with the outside so as to maintain the balanced state of atmospheric pressure. The present invention utilizes the action of pressure difference that the atmospheric pressure is larger than the pressure of a pump oil chamber to make the oil liquid in the oil storage tank easily absorbed by a pump piston. Therefore, the present invention achieves the effect of completely plump optimal oil absorption.
Description
Technical field
The present invention provides a kind of connection for bbreather pipe structure of hydraulic jack, for specializing in the oil cistern outer wall that is installed in hydraulic jack, particularly when pump piston strike the oil, can oil cistern be communicated with the external world and obtain the bar pressure balance, so oil cistern pressure is promptly greater than pump grease chamber pressure, to make pump can fullly sink oil cistern fluid, reach best strike the oil effect.
Background technology
Known hydraulic jack when rising, is to utilize the pump piston earlier fluid to be drawn people's pump grease chamber from oil cistern, again fluid is pushed inner oil sump, and continuous action repeatedly thus is to reach the jack purpose that progressively rises; The oil cistern of right known hydraulic jack is to be complete air-tight state, after pump begins start, the oil mass of oil cistern is because of advancing people's inner oil sump again by the pump grease chamber, so the oil cistern oil mass will reduce gradually, its oil mass heals the pressure of little then oil cistern will be more near vacuum, because this differential pressure action makes so, therefore the work of pump strike the oil more shows the effort difficulty, cause the pump piston can't smooth and easy oil suction, and oil absorption can't reach best degree of saturation, and stroke also can't produce greatest benefit so it rises at every turn.
Summary of the invention
Main purpose of the present invention, be to provide a kind of connection for bbreather pipe structure of hydraulic jack, be located at hydraulic jack oil cistern outer wall for specializing in, its composition comprises: valve seat, valve body, primary member such as valve ball and cap, this cap is to offer an air extractor vent, and be by the valve opening of valve ball control valve body and open or to close, when jack will rise, valve opening is to be unlatching, oil cistern can be communicated with the external world and keep the bar pressure balance, utilize the differential pressure action of this bar pressure, make oil cistern fluid be sinked by the pump piston easily greater than pump grease chamber pressure, to obtain full best strike the oil effect fully, make its stroke that at every turn rises all can bring into play greatest benefit.
Secondary objective of the present invention, be to provide a kind of connection for bbreather pipe structure of hydraulic jack, but between described valve seat and the cap and have a temporary grease chamber of a fuel feeding liquid, when jack descends, when carrying out oil return, valve ball is upwards lifted and the valve opening of SELF CL valve body on the top by fluid, preventing that fluid from going out, and valve ball top moment of lifting upwards, because of a little excessive fluid of high-voltage high-speed, promptly can temporarily retain in this grease chamber, when treating that jack rises, utilize its inner vacuum effect next time, residual fluid can be sucked back oil cistern more again, and the unlatching air extractor vent, in making, outer barometric pressure returns to identical state of equilibrium.
The object of the present invention is achieved like this, a kind of connection for bbreather pipe of hydraulic jack, and it is to specialize in to be installed in hydraulic jack oil cistern outer wall, composition comprises: members such as valve seat, valve body, valve ball and cap,
Valve seat is a hollow base frame, and an end is locked on jack oil cistern outer wall and communicates with oil cistern, and this valve seat inside also holds a valve body;
Valve body is a ducted body, is to hold in the valve seat, and a valve opening is offered in its upper end, a built-in valve ball, and in the valve body bottom and be provided with one and stop the stop section that valve ball is deviate from;
Valve ball is to be with the valve opening of control valve body by its ascending, descending to close or open;
Cap is urgent being nested with and be incorporated into the valve seat other end, and offers the air extractor vent that one or more can communicate with the external world in select location;
The composition of above-mentioned connection for bbreather pipe, in jack not during start, described valve opening is to be unlatching, the air extractor vent of cap and jack oil cistern are inside and outside communicating and keep the bar pressure state of equilibrium, so oil cistern pressure is promptly greater than pump grease chamber pressure, make the pump piston can smooth and easy oil suction, fluid is sucked into the pump grease chamber easily and is full fully from oil cistern.
A sealed end of this valve seat and jack oil cistern outer wall has thread segment.
This valve seat and a sheathed O shape oil sealing and form airtight the combination with jack oil cistern outer wall.
This valve body upper end is provided with a card and ends clasp.
But this valve seat epimere portion extends to form the temporary grease chamber of a fuel feeding liquid.
The stop section of this valve body bottom is one to run through the backing pin that plants.
This valve outer wall has an annular groove that supplies an O shape oil-sealing sleeve to plant.
This cap inwall has a circumferential rib.
This cap upper end has a lug.
This cap is the flexible plastic cement material of tool.
Remarkable result of the present invention is, when jack will rise, valve opening is to be unlatching, oil cistern can be communicated with the external world and keep the bar pressure balance, utilize the differential pressure action of this bar pressure greater than pump grease chamber pressure, make oil cistern fluid be sinked by the pump piston easily,, make its stroke that at every turn rises all can bring into play greatest benefit to obtain full best strike the oil effect fully.
Description of drawings
Fig. 1 is installed in the combination scheme drawing of jack for the present invention.
Fig. 2 is a combination stereogram of the present invention.
Fig. 3 is an exploded perspective view of the present invention.
Fig. 4 is the combination section of opening for valve opening of the present invention.
Fig. 5 is lifted by the fluid top for valve ball of the present invention momentary status scheme drawing.
Fig. 6 is the closed condition scheme drawing for valve opening of the present invention is lifted by the fluid top.
The specific embodiment
As shown in Figure 1 to Figure 3, the present invention is the connection for bbreather pipe of hydraulic jack, is to specialize in to be installed in hydraulic jack 10 oil cistern outer walls, and its composition comprises: primary members such as valve seat 1, valve body 2, valve ball 3 and cap 4, wherein:
The connection for bbreather pipe that utilizes above-mentioned member to form, after its installing being incorporated into oil cistern 101 outer walls of hydraulic jack 10, in jack 10 not during start, the valve ball 3 of connection for bbreather pipe falls (as Fig. 4) because of action of gravity, so valve opening 21 is unlatching, this moment cap 4 air extractor vent 42 with jack 10 oil cisterns 101 be in, be interlinked to the outside, oil cistern 101 is promptly kept and extraneous identical bar pressure balance, because this bar pressure is greater than pump grease chamber pressure, differential pressure action can make the 20 smooth and easy oil suctions of pump piston thus, and fluid is sucked the grease chamber 201 of pump 20 easily and is full fully from oil cistern 101, make the stroke that at every turn rises of jack 10, all can bring into play greatest benefit.
The above-mentioned temporary grease chamber 14 of fluid that is located at 4 of valve seat 1 and caps, mainly be when jack 10 carries out oil return, because of a large amount of fluid of inner oil sump 102 are to be high pressure to be back to oil cistern 101 fast, so valve ball 3 can upwards be lifted and the valve opening 21 (promptly shown in Figure 6) of SELF CL valve body 2 on the top by fluid, go out to prevent fluid, and valve ball 3 is upwards pushing up the moment of lifting fast, the temporary grease chamber 14 of described fluid can provide high-voltage high-speed and a little excessive fluid temporarily retains, to jack 10 oil returns finish (fully descend to back), this valve ball 3 reduces because of oil cistern 101 pressure, promptly fall with own wt, valve opening 21 is opened, and unnecessary gas disengaged, so the oil cistern 101 of jack 10 and the extraneous state of equilibrium that returns back to identical bar pressure again; When only treating that jack 10 rises next time, the aforementioned fluid that residues in grease chamber 14 promptly utilizes the inner vacuum effect, and these residual fluid are sucked back oil cistern 101 again again.
The connection for bbreather pipe combination form of above-mentioned hydraulic jack, only be preferred embodiment of the present invention, precisely because be not in order to limiting the technology of the present invention scope, other equivalent application or based on preceding paragraph technological means do structural simple and easy change or displacer, from the technical characterictic that still is contained in this case such as.
In sum, the connection for bbreather pipe of really visible this hydraulic jack, it is whole form really belong to novel, and reach the pump piston can smooth and easy oil suction and be the intended purposes of complete full state, so the remarkable practicality of tool does not have blackmail.
Claims (10)
1, a kind of connection for bbreather pipe of hydraulic jack, it is to specialize in to be installed in hydraulic jack oil cistern outer wall, composition comprises: valve seat (1), valve body (2), valve ball (3) and cap (4) is characterized in that:
Valve seat (1) is a hollow base frame, and an end is locked on jack (10) oil cistern outer wall and communicates with oil cistern (101), and this valve seat (1) inside also holds a valve body (2);
Valve body (2) is a ducted body, is to hold in the valve seat (1), and a valve opening (21) is offered in its upper end, a built-in valve ball (3), and in valve body (2) bottom and be provided with one and stop the stop section that valve ball (3) is deviate from;
Valve ball (3) is to be with the valve opening (21) of control valve body (2) by its ascending, descending to close or open;
Cap (4) is urgent being nested with and be incorporated into valve seat (1) other end, and offers the air extractor vent (42) that one or more can communicate with the external world in select location;
The composition of above-mentioned connection for bbreather pipe, in jack (10) not during start, described valve opening (21) is to be unlatching, the air extractor vent (42) of cap (4) and jack (10) oil cistern (101) are inside and outside communicating and keep the bar pressure state of equilibrium, so oil cistern (101) pressure is promptly greater than pump grease chamber pressure, make the pump piston (20) can smooth and easy oil suction, fluid is sucked into pump grease chamber (201) easily and is full fully from oil cistern (101).
2, the connection for bbreather pipe of hydraulic jack according to claim 1 is characterized in that: this valve seat (1) has thread segment (11) with a sealed end of jack (10) oil cistern outer wall.
3, the connection for bbreather pipe of hydraulic jack according to claim 1 is characterized in that: this valve seat (1) and a sheathed O shape oil sealing (12) and form airtight the combination with jack (10) oil cistern outer wall.
4, the connection for bbreather pipe of hydraulic jack according to claim 1 is characterized in that: this valve body (2) upper end is provided with a card and ends clasp (13).
5, the connection for bbreather pipe of hydraulic jack according to claim 1 is characterized in that: this valve seat (1) but epimere portion extends to form the temporary grease chamber (14) of a fuel feeding liquid.
6, the connection for bbreather pipe of hydraulic jack according to claim 1 is characterized in that: the stop section of this valve body (2) bottom is one to run through the backing pin (22) that plants.
7, the connection for bbreather pipe of hydraulic jack according to claim 1 is characterized in that: this valve body (2) outer wall has an annular groove (23) of planting for an O shape oil sealing (24) cover.
8, the connection for bbreather pipe of hydraulic jack according to claim 1, it is characterized in that: this cap (4) inwall has a circumferential rib (41).
9, the connection for bbreather pipe of hydraulic jack according to claim 1 is characterized in that: this cap (4) upper end has a lug (43).
10, the connection for bbreather pipe of hydraulic jack according to claim 1, it is characterized in that: this cap (4) is the flexible plastic cement material of tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031021638A CN100343157C (en) | 2003-02-09 | 2003-02-09 | Ventilation valve for a hydraulic jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031021638A CN100343157C (en) | 2003-02-09 | 2003-02-09 | Ventilation valve for a hydraulic jack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1521112A CN1521112A (en) | 2004-08-18 |
| CN100343157C true CN100343157C (en) | 2007-10-17 |
Family
ID=34281625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031021638A Expired - Lifetime CN100343157C (en) | 2003-02-09 | 2003-02-09 | Ventilation valve for a hydraulic jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100343157C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106545529B (en) * | 2016-12-22 | 2018-10-09 | 杭州天恒机械有限公司 | Can adjust automatically oil cylinder internal pressure hydraulic jack dynamical system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2088023A (en) * | 1980-05-02 | 1982-06-03 | Plastiers Ltd | Anti-syphon valves |
| US4467827A (en) * | 1982-02-02 | 1984-08-28 | Lacrex Brevetti S.A. | Venting and degasifying valve for a liquid-filled system |
| CN2434293Y (en) * | 2000-06-12 | 2001-06-13 | 信孚产业股份有限公司 | Oil cylinder ventilation valve of hydraulic jack |
| CN2603063Y (en) * | 2003-02-09 | 2004-02-11 | 信孚产业股份有限公司 | Ventilation valve for hydraulic jack |
-
2003
- 2003-02-09 CN CNB031021638A patent/CN100343157C/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2088023A (en) * | 1980-05-02 | 1982-06-03 | Plastiers Ltd | Anti-syphon valves |
| US4467827A (en) * | 1982-02-02 | 1984-08-28 | Lacrex Brevetti S.A. | Venting and degasifying valve for a liquid-filled system |
| CN2434293Y (en) * | 2000-06-12 | 2001-06-13 | 信孚产业股份有限公司 | Oil cylinder ventilation valve of hydraulic jack |
| CN2603063Y (en) * | 2003-02-09 | 2004-02-11 | 信孚产业股份有限公司 | Ventilation valve for hydraulic jack |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1521112A (en) | 2004-08-18 |
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| PB01 | Publication | ||
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20071017 |
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| CX01 | Expiry of patent term |