CN103016828B - Mechanical normally-closed pressure valve - Google Patents
Mechanical normally-closed pressure valve Download PDFInfo
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- CN103016828B CN103016828B CN201310005218.1A CN201310005218A CN103016828B CN 103016828 B CN103016828 B CN 103016828B CN 201310005218 A CN201310005218 A CN 201310005218A CN 103016828 B CN103016828 B CN 103016828B
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- bar
- slide plate
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Abstract
The invention relates to a mechanical normally-closed pressure valve, which comprises more than twenty parts including a valve body, a sliding plate, a circular sleeve and the like, and is a pressure control valve used in a mechanical pressure machine. In the working state, the valve is opened, when the pressure of a squeezed material in pressure machinery achieves a pressure value set by a spring, the valves of a pressure control valve are pulled open by a delay switch, the squeezed material achieving certain pressure is squeezed out, and therefore the squeezed material can achieve a form base; and when the pressure of the squeezed material in the pressure machinery does not achieve the pressure value set by the spring, the upper and lower valves of the pressure control valve are closed and are in an off working state. The mechanical normally-closed pressure valve has a simple principle, is convenient to use, has a pressure control role and a safety protection role, and is an ideal pressure control device of the mechanical pressure machinery. Compared with the hydraulic system, the mechanical normally-closed pressure valve has the advantages of no environment pollution, simple structure, reliable pressure, safety, durability and low cost.
Description
Technical field
The present invention relates to valve mechanism, be specially the normally closed pressure valve of a kind of mechanical type.
Background technique
China is a developing country that has people more than 1,200,000,000, the consumption of food, medicine and demand are very large, wherein the exploitation of agricultural products processing also has very large development space, the exploitation of the food such as vegetables, fruit, aquatic product, poultry has very large potentiality, and the processing of shaping food and pharmaceutical all be unable to do without press.According to the present situation of this development and trend, can affirm that the demand of China's press is by increasing.And the press market of current China, product type is a lot, and structural type is various, and application area is narrower, and purposes is single, and delivery pressure, just by the structures shape of press own, can not regulate at all, causes energy waste and the idleness of equipment.
Summary of the invention
Technical problem solved by the invention is to provide a kind of mechanical type normally closed pressure valve, to solve the shortcoming in above-mentioned background technology.
Technical problem solved by the invention realizes by the following technical solutions:
The normally closed pressure valve of a kind of mechanical type, comprise valve body, slide plate and circular sleeve, described slide plate is arranged on the right side of valve body, circular sleeve is through slide plate and valve body, be arranged on the neutral position of slide plate and valve body, at upside and the downside of described circular sleeve, be separately installed with pressure and adjust bolt through valve body and slide plate, described pressure is adjusted the position cover of bolt between valve body and slide plate pressure-adjusting spring, described pressure is adjusted bolt and circular sleeve is arranged in parallel, on described slide plate, the position that is close to circular sleeve is provided with upper and lower two cotter pins, the inside is installed with respectively bar, described bar is by being fixed on the rocking arm connecting rocker arm rocking bar on rocker bar bearing, rocking arm rocking bar connects rocking bar one end by connecting rod, the other end of rocking bar is fixed, the joint of described upper and lower two groups of connecting rods and rocking bar is close to valve and half elliptic lower valve on half elliptic, on half elliptic, valve and half elliptic lower valve form the opening of described pressure valve, at the tail end of described circular sleeve, on half elliptic, the left side of valve and half elliptic lower valve is provided with outlet sleeve, described outlet sleeve is fixed on valve body by clamping bolt.
Tail end at described rocking arm rocking bar is connected with thin cord, and described thin cord connects delay switch by one group of static pulley, and delay switch makes the valve and half elliptic lower valve on half elliptic can Time Delay Opening by thin cord to the pulling force of rocking arm rocking bar.
Position on described slide plate and between valve body is also provided with upper and lower two safe pressure heads, the opposite position of described safe pressure head on valve body is provided with safe rocker-arm link, safe rocker-arm link is by being fixed on the rocking arm connecting rocker arm connecting rod one end on rocker bar bearing, and the other end of rocker-arm link fixes on half elliptic on valve and half elliptic lower valve by hinges fixing.
On described safe rocker-arm link, rocking arm rocking bar and bar, be all provided with spring, can play the effect of active homing.
Beneficial effect: the principle of the invention is simple, easy to use, not only there is pressure control action but also there is safety protection effect, be the desirable pressure control device of mechanical compression machinery; compared with hydraulic system, have free from environmental pollution, simple in structure; pressure is reliable, safety durable, low-cost advantage.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is that A-A of the present invention is to left view.
In figure: valve body 1, circular sleeve 2, slide plate 3, pressure are adjusted valve 13 on bolt 4, safe pressure head 5, safe rocker-arm link 6, pressure-adjusting spring 7, bar 8, rocking arm rocking bar 9, rocking arm 10, rocker bar bearing 11, rocker-arm link 12, half elliptic, half elliptic lower valve 14, static pulley 15, thin cord 16, connecting rod 17, rocking bar 18, delay switch 19, cotter pin 20, hinge axis 21, tight fixed bolt 22, outlet sleeve 23.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
Referring to Fig. 1, 2 the normally closed pressure valve of a kind of mechanical type, the normally closed pressure valve of a kind of mechanical type, comprise valve body 1, slide plate 3 and circular sleeve 2, described slide plate 3 is arranged on the right side of valve body 1, circular sleeve 2 is through slide plate 3 and valve body 1, be arranged on the neutral position of slide plate 3 and valve body 1, at upside and the downside of described circular sleeve 2, be separately installed with pressure and adjust bolt 4 through valve body 1 and slide plate 3, described pressure is adjusted the position cover of bolt 4 between valve body 1 and slide plate 4 pressure-adjusting spring 7, described pressure is adjusted bolt 4 and is arranged in parallel with circular sleeve 2, on described slide plate 3, the position that is close to circular sleeve 2 is provided with upper and lower two cotter pins 20, the inside is installed with respectively bar 8, described bar 8 is by being fixed on the rocking arm 10 connecting rocker arm rocking bars 9 on rocker bar bearing 11, rocking arm rocking bar 9 connects rocking bar 18 one end by connecting rod 17, the other end of rocking bar 18 is fixed, described upper and lower two groups of connecting rods 17 are close to valve 13 and half elliptic lower valve 14 on half elliptic with the joint of rocking bar 18, on half elliptic, valve 13 and half elliptic lower valve 14 form the opening of described pressure valve, at the tail end of described circular sleeve 2, on half elliptic, valve 13 is provided with outlet sleeve 23 with the left side of half elliptic lower valve 14, described outlet sleeve 23 is fixed on valve body 1 by clamping bolt 22, be connected with thin cord 16 at the tail end of described rocking arm rocking bar 9, described thin cord 16 connects delay switch 19 by one group of static pulley 15, position on described slide plate 3 and between valve body 1 is also provided with upper and lower two safe pressure heads 5, the opposite position of described safe pressure head 4 on valve body 1 is provided with safe rocker-arm link 6, safe rocker-arm link 6 is by being fixed on rocking arm 10 connecting rocker arm connecting rod 12 one end on rocker bar bearing 11, and the other end of rocker-arm link 12 fixes on half elliptic on valve 13 and half elliptic lower valve 14 by hinges fixing.
The normally closed pressure valve of a kind of mechanical type of the present invention is in the time of work, press machine work, screw axis rotation, compacting thing is pushed through in circular sleeve 2, now valve 13 on the half elliptic of valve, half elliptic lower valve 14 is closed, the interior working pressure of airtight circular sleeve 2 raises along with increasing of extrudate, in the time that pressure reaches pressure and adjusts the pressure of the pressure-adjusting spring 7 set up of bolt 4, extrudate promote slide plate 3 on valve body 1 to left movement, slide plate 3 is connected with bar 8 cotter pins 20, because the moving left of slide plate drives bar 8 to be moved to the left, bar 8 is connected by cotter pin 20 with rocking arm 10, therefore rocking arm 10 is under the promotion left of bar 8, rocking arm 10 around rocker bar bearing 11 to pressing down rocking arm rocking bar 9, rocking arm rocking bar 9, connecting rod 17, rocking bar 18 and valve body composition double rocker mechanism, because driving rocking bar 18, the downward promotion of rocking bar 9 pushes to half elliptic valve 13 to left movement, now going up delay switch 19 is pressed, in delay switch 19, a spring is resiled by original elongation state, spring shortens and generation pulling force, pull valve, by valve Time Delay Opening.Upper lower valve symmetry, controls working principle the same, and two valves are simultaneously by Time Delay Opening, and now valve is in running order.
If it is less to be extruded the less cover cylinder pressure that causes of material in circular sleeve 2, in the time being less than pressure and adjusting the pressure of the pressure-adjusting spring 7 set up of bolt 4, pressure-adjusting spring 7 promotes slide plate 3 and moves right, slide plate 3 bars 8 connect by cotter pin 20, therefore slide plate 3 drives bar 8 to move right, drive rocking arm 10 to rise around rocker bar bearing 11, rocking arm 10 is connected by cotter pin with rocking arm rocking bar 9, thereby can drive rocking arm rocking bar 9 to move upward, rocking arm rocking bar 9 is hinged with connecting rod 17, and connecting rod 17 is hinged with rocking bar 18, can find out, rocking bar is no longer pushed valve 13 on half elliptic and is left valve, because moving upward of rocking arm rocking bar 9, drive and upwards draw around the thin cord 16 of static pulley 15, pull delay switch 19 by three static pulley 15 break-ins, the spring generation thrust that resiles of a compression in delay switch, valve on half elliptic 13 is closed.Upper lower valve symmetry, controls working principle the same, and two valves are closed simultaneously, and now valve is in off working state.Valve pressure in circular sleeve 2 in the time of closed condition passes to outlet sleeve 23 by upper lower valve, and outlet sleeve 23 is connected by tight fixed bolt 22 with valve body 1, and the pressure of final valve body 1 is passed to press.
Pressure controlled valve is in the time of normal working state, safe pressure head 5 on slide plate 3 is can touch-safe rocker-arm link 6, only have the valve of working as in the hole, pressure under normal operation has reached pressure that pressure control spring 7 sets up and valve while not opening, now in circular sleeve 2, the pressure that increases along with extrudate increases, slide plate 3 amount of movement has left exceeded normal amount of movement, safe pressure head 5 is being pressed safe rocker-arm link 6, drive rocker-arm link 12 to move downward by rocking arm, the downward thrust of rocker-arm link 12 is pushed valve open, upper and lower transmission principle is the same, lower valve is also open, extrudate is excluded.Now valve, in safe work state, has been avoided, because the increase of pressure damages mechanical device, having played safety protection effect.This working state warning operator will shut down, maintenance pressure controlled valve.
The principle of delay switch is: be a kind of special combination spring, by A, B two spring assemblies.In the time that A spring is subject to pressure outside, A spring is resiled by original elongation state, and (now lever by another B spring by compressed) spring produces pulling force, draws (pushing away) bar to pull valve, by valve Time Delay Opening; In the time that B spring is subject to certain pulling force, the B spring of another compression resiles (now lever is stretched another spring), and spring produces thrust, pushes away (drawing) bar and promotes valve, by valve closing.Delay time can regulate as requested, the valve closing when blank that the interior extrusion moulding of press forming sleeve has certain structural capacity, certain size is just extruded.Delay switch is time-delay closing only, but not time delay is opened.Circulation and so forth, by valve open-close, close-open.
In the time that press machine delivery outlet pressure need to be adjusted, adjust pressure and adjust bolt 4, thereby adjusted the pressure of pressure-adjusting spring 7, reach conversion pressure and the object of pilot pressure.
More than show and described basic principle of the present invention and major character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof
.
Claims (5)
1. the normally closed pressure valve of mechanical type, it is characterized in that, comprise valve body, slide plate and circular sleeve, described slide plate is arranged on the right side of valve body, circular sleeve is through slide plate and valve body, be arranged on the neutral position of slide plate and valve body, at upside and the downside of described circular sleeve, be separately installed with pressure and adjust bolt through valve body and slide plate, described pressure is adjusted the position cover of bolt between valve body and slide plate pressure-adjusting spring, described pressure is adjusted bolt and circular sleeve is arranged in parallel, on described slide plate, the position that is close to circular sleeve is provided with upper and lower two cotter pins, the inside is installed with respectively bar, described bar is by being fixed on the rocking arm connecting rocker arm rocking bar on rocker bar bearing, rocking arm rocking bar connects rocking bar one end by connecting rod, the other end of rocking bar is fixed, the joint of described upper and lower two groups of connecting rods and rocking bar is close to valve and half elliptic lower valve on half elliptic, on half elliptic, valve and half elliptic lower valve form the opening of described pressure valve, at the tail end of described circular sleeve, on half elliptic, the left side of valve and half elliptic lower valve is provided with outlet sleeve, described outlet sleeve is fixed on valve body by clamping bolt.
2. the normally closed pressure valve of a kind of mechanical type according to claim 1, it is characterized in that, tail end at described rocking arm rocking bar is connected with thin cord, described thin cord connects delay switch by one group of static pulley, and delay switch makes valve and half elliptic lower valve time-delay closing on half elliptic by thin cord to the pulling force of rocking arm rocking bar.
3. the normally closed pressure valve of a kind of mechanical type according to claim 1, it is characterized in that, position on described slide plate and between valve body is also provided with upper and lower two safe pressure heads, the opposite position of described safe pressure head on valve body is provided with safe rocker-arm link, safe rocker-arm link is by being fixed on the rocking arm connecting rocker arm connecting rod one end on rocker bar bearing, and the other end of rocker-arm link fixes on half elliptic on valve and half elliptic lower valve by hinges fixing.
4. the normally closed pressure valve of a kind of mechanical type according to claim 1, is characterized in that, on described rocking arm rocking bar and bar, is all provided with spring.
5. the normally closed pressure valve of a kind of mechanical type according to claim 3, is characterized in that, on described safe rocker-arm link, is provided with spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310005218.1A CN103016828B (en) | 2013-01-08 | 2013-01-08 | Mechanical normally-closed pressure valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310005218.1A CN103016828B (en) | 2013-01-08 | 2013-01-08 | Mechanical normally-closed pressure valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103016828A CN103016828A (en) | 2013-04-03 |
| CN103016828B true CN103016828B (en) | 2014-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310005218.1A Expired - Fee Related CN103016828B (en) | 2013-01-08 | 2013-01-08 | Mechanical normally-closed pressure valve |
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| CN (1) | CN103016828B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108980373B (en) * | 2018-08-30 | 2019-08-06 | 浙江宏博汽配有限公司 | A kind of regulating valve being easily installed |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6619325B2 (en) * | 2001-12-04 | 2003-09-16 | The United States Of America As Represented By The Administrator Of The U.S. Environmental Protection Agency | Hydraulic hybrid accumulator shut-off valve |
| US6755213B1 (en) * | 2003-07-14 | 2004-06-29 | Jih-Ching Lai | Timing switch for gas stove |
| CN201013918Y (en) * | 2007-02-13 | 2008-01-30 | 刘廷玉 | Quick-acting shutoff valve |
| CN202040405U (en) * | 2011-05-09 | 2011-11-16 | 宁波克泰液压有限公司 | Thread plug-in two-position two-way normally closed electromagnetic valve |
| CN203189851U (en) * | 2013-01-08 | 2013-09-11 | 湖南工业职业技术学院 | Mechanical normally-closed pressure valve |
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2013
- 2013-01-08 CN CN201310005218.1A patent/CN103016828B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN103016828A (en) | 2013-04-03 |
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