CN104454734A - Pressure-regulating overflow valve - Google Patents
Pressure-regulating overflow valve Download PDFInfo
- Publication number
- CN104454734A CN104454734A CN201410718514.0A CN201410718514A CN104454734A CN 104454734 A CN104454734 A CN 104454734A CN 201410718514 A CN201410718514 A CN 201410718514A CN 104454734 A CN104454734 A CN 104454734A
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- China
- Prior art keywords
- valve
- hole
- pressure water
- rod
- peripheral surface
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/025—Pressure reducing valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Safety Valves (AREA)
- Lift Valve (AREA)
Abstract
A pressure-regulating overflow valve includes a valve body, a small valve rod, a spring, a valve sleeve, an overflow port connector, a handle sleeve, two handles, a butterfly spring and a large valve rod, wherein a through hole is formed in the center of the valve body, and a high-pressure water inlet and high-pressure water outlets are formed in the circumferential wall at the lower part of the valve body; the lower part of the handle sleeve is inserted into an upper end port of the through hole; the butterfly spring is arranged in the handle sleeve; the head of the large valve rod is arranged at the lower part of the butterfly spring in the handle sleeve, and a rod part of the large valve rod penetrates a circular hole in the handle sleeve and extends into the upper part of the through hole; one end of the overflow port connector is inserted into a lower end port of the through hole in the valve; the valve sleeve is arranged at the middle lower part of the through hole; the small valve rod is arranged in the through hole, the head of the small valve rod is in contact with the lower end of the large valve rod, and a rod part of the small valve rod is arranged at the middle upper part of the inside of the valve sleeve; the outer surface of the small valve rod is sleeved by the spring. The pressure-regulating overflow valve has a reasonable and compact structural design, and achieves automatic regulation and high regulation precision; moreover, as the lower end of the valve sleeve is closed, overflowing high-pressure water is discharged through overflow holes in the side wall of the valve sleeve, which can reduce the impact of the high-pressure water and achieve more stable overflow.
Description
Technical field
The invention belongs to hydraulic machinery technical field, particularly relate to a kind of pressure adjustment relief valve.
Background technique
Plunger pump is also known as reciprocating pump, for an important device of hydraulic system, it relies on plunger to-and-fro motion in cylinder body, the volume of pressurization working lumen is made to change to realize sucking medium, compressed media, the advantage such as have that rated pressure is high, compact structure, efficiency are high and Flow-rate adjustment is convenient, be widely used in the occasion that high pressure, large discharge and flow need to regulate, in such as hydraulic press, engineering machinery, oil field and boats and ships.Plunger pump conventional at present forms primarily of power end, fluid end and lubrication oil circulation cooling system, power end is used for the energy of prime mover to pass to fluid end, mainly comprises crankcase and is arranged on the high speed shaft of crankcase inside, bent axle, multiple gear ring, many connecting rods and many crossheads; The mechanical energy that fluid end is used for power end to provide is converted to fluid pressure energy, mainly comprise many plungers, multiple cylinder body, bracket, pump head, liquid in-out valve group and combination valve, wherein pump head is provided with inlet opening and outage, the outer end of outage connects one for regulating the pressure adjustment relief valve of high-pressure medium pressure, and pressure adjustment relief valve is connected with receiving vessel by pipeline again; Lubrication oil circulation cooling system, then for the lubricant oil of power end inside is carried out circulating cooling, breaks down to prevent each parts Yin Wendu of its inside too high.But there is following point in pressure adjustment relief valve conventional at present: constituent elements is many, therefore complex structure, and boundary dimension is large, so price is higher, structural design is not very reasonable simultaneously, must regulate manually, and degree of regulation is not high, and cannot automatically adjusts.
Summary of the invention
In order to solve the problem, the object of the present invention is to provide the pressure adjustment relief valve that a kind of degree of regulation is high.
In order to achieve the above object, pressure adjustment relief valve provided by the invention comprises valve body, small valve-rod, spring, valve pocket, flow-off joint, taper knob, two hand handles, butterfly spring and large valve rods; Wherein the center portion of valve body has been formed through an axial hole, its underpart peripheral wall is formed with a high pressure water import be connected with high pressure water exhaust port on pump head and at least one high-pressure water outlet, and high pressure water import is all connected with through hole with high-pressure water outlet; The bottom of taper knob is inserted in the upper end-hole inside of through hole, and its center portion, lower end surface is formed with a circular hole; Butterfly spring is arranged on the inside of taper knob; Large valve rod is nail shape structure, and its head is arranged on butterfly spring bottom in taper knob, and bar portion runs through the circular hole on taper knob and extends to the internal upper part of through hole; One end symmetry of two hand handles is inserted and is arranged on taper knob top; It is inner that the lower end mouth being arranged on through hole on valve body is inserted in one end of flow-off joint; Valve pocket is the cylinder-like structure that upper end is formed with opening, be located at the middle and lower part of through hole, in the middle part of it, peripheral wall is formed with the perforate corresponding with above-mentioned high pressure water import and high-pressure water outlet, lower circumference wall is formed with multiple overflow hole, and the position outer surface between perforate and overflow hole is fixed in flow-off joint upper inside surface; Small valve-rod is nail shape structure, and be located at the inside of through hole, its head contacts with the lower end of large valve rod, and bar portion is then arranged on middle and upper part in valve pocket; Spring housing is on the bar portion outer surface of the small valve-rod between the head and valve pocket upper end of small valve-rod.
Described high-pressure water outlet is 3, to be separately positioned in the middle part of valve body with high pressure water import at a distance of the position of 90 °, 180 °, 270 °, can to select arbitrarily a use according to mounting point.
Seal ring is equipped with between outer peripheral surface and through hole bottom inner peripheral surface in the middle part of inner peripheral surface, valve pocket middle and lower part outer peripheral surface and flow-off upper end of joint inner peripheral surface and flow-off joint in the middle part of described taper knob lower outer circumferential face and through hole top inner peripheral surface, valve pocket top outer peripheral surface and through hole.
The reasonable in design of pressure adjustment relief valve provided by the invention, compact, and can automatically carry out regulating and degree of regulation is high.In addition, the lower end due to valve pocket is closed shape, and overflow high pressure water is discharged from the overflow hole sleeve side wall, therefore can reduce the impact force of high pressure water, make overflow more stable.In addition, good sealing effect, so can bear higher pressure than traditional pressure adjustment relief valve.
Accompanying drawing explanation
Fig. 1 is pressure adjustment relief valve longitudinal construction sectional view provided by the invention.
Fig. 2 be in Fig. 1 A-A to sectional view.
Embodiment
Below in conjunction with the drawings and specific embodiments, pressure adjustment relief valve provided by the invention is described in detail.
As shown in Fig. 1-Fig. 2, pressure adjustment relief valve provided by the invention comprise valve body 1, small valve-rod 2, spring 3, valve pocket 4, flow-off joint 5, taper knob 6, two hands 7, butterfly spring 8 and large valve rod 9; Wherein the center portion of valve body 1 has been formed through an axial hole 10, its underpart peripheral wall is formed with a high pressure water import be connected with high pressure water exhaust port on pump head 11 and at least one high-pressure water outlet 12, and high pressure water import 11 is all connected with through hole 10 with high-pressure water outlet 12; The bottom of taper knob 6 is inserted in the upper end-hole inside of through hole 10, and its center portion, lower end surface is formed with a circular hole; Butterfly spring 8 is arranged on the inside of taper knob 6; Large valve rod 9 is nail shape structure, and its head is arranged on butterfly spring 8 bottom in taper knob 6, and bar portion runs through the circular hole on taper knob 6 and extends to the internal upper part of through hole 10; Two hands insert one end of 7 symmetry and are arranged on taper knob 6 top; It is inner that the lower end mouth being arranged on through hole 10 on valve body 1 is inserted in one end of flow-off joint 5; Valve pocket 4 is formed with the cylinder-like structure of opening for upper end, be located at the middle and lower part of through hole 10, in the middle part of it, peripheral wall is formed with the perforate 13 corresponding with above-mentioned high pressure water import 11 and high-pressure water outlet 12, lower circumference wall is formed with multiple overflow hole 14, and the position outer surface between perforate 13 and overflow hole 14 is fixed in flow-off joint 5 upper inside surface; Small valve-rod 2 is nail shape structure, and be located at the inside of through hole 10, its head contacts with the lower end of large valve rod 9, and bar portion is then arranged on middle and upper part in valve pocket 4; Spring 3 is enclosed within the bar portion outer surface of the small valve-rod 2 between the head and valve pocket 4 upper end of small valve-rod 2.
Described high-pressure water outlet 12 is 3, to be separately positioned in the middle part of valve body 1 with high pressure water import 11 at a distance of the position of 90 °, 180 °, 270 °, can to select arbitrarily a use according to mounting point.
Seal ring is equipped with between outer peripheral surface and through hole 10 bottom inner peripheral surface in the middle part of inner peripheral surface, valve pocket 4 middle and lower part outer peripheral surface and flow-off joint 5 upper end inner peripheral surface and flow-off joint 5 in the middle part of described taper knob 6 lower outer circumferential face and through hole 10 top inner peripheral surface, valve pocket 4 top outer peripheral surface and through hole 10.
Now pressure adjustment relief valve using method provided by the invention is described below: first utilized the pressure gauge observed and be connected with pressure adjustment relief valve by staff, while the mode of rotating hand rotary handle cover 67 regulates the position of small valve-rod 2 lower end in valve pocket 4, till making the high pressure water of discharging from high-pressure water outlet 12 reach required use pressure, at this moment the lower end of small valve-rod 2 blocks upper end-hole valve pocket 4 is positioned at below perforate 13 just.Under normal circumstances, the high pressure water of discharging in fluid end cylinder body is by the high pressure water import 11 that flowed into by high pressure water exhaust port pump head on this pressure adjustment relief valve, then relative with high pressure water import 11 from valve pocket 4 perforate 13 enters in the annular space between valve pocket 4 and small valve-rod 2, flow into high-pressure water outlet 12 by perforate 13 corresponding with high-pressure water outlet 12 on valve pocket 4 afterwards, be supplied to receiving vessel for user finally by the pipeline be connected with high-pressure water outlet 12.When the high-pressure water pressure of discharging in fluid end cylinder body is too high, the high pressure water entered in valve pocket 4 will upwards push small valve-rod 2, thus compression butterfly spring 8, the lower end of small valve-rod 2 can be made to leave valve pocket 4 is positioned at the upper end-hole below perforate 13 thus, at this moment partial high pressure water will flow in flow-off joint 5 from overflow hole 14, finally drain in overflow vessel from flow-off joint 5, reach the object of pressure release thus.When pressure recover is normal, small valve-rod 2 can rely on the elastic force of butterfly spring 8 to automatically reset.
Claims (3)
1. a pressure adjustment relief valve, is characterized in that: it comprises valve body (1), small valve-rod (2), spring (3), valve pocket (4), flow-off joint (5), taper knob (6), two hands (7), butterfly spring (8) and large valve rod (9); Wherein the center portion of valve body (1) has been formed through an axial hole (10), its underpart peripheral wall is formed with a high pressure water import (11) and at least one high-pressure water outlet (12) be connected with high pressure water exhaust port on pump head, and high pressure water import (11) is all connected with through hole (10) with high-pressure water outlet (12); The bottom of taper knob (6) is inserted in the upper end-hole inside of through hole (10), and its center portion, lower end surface is formed with a circular hole; Butterfly spring (8) is arranged on the inside of taper knob (6); Large valve rod (9) is nail shape structure, and its head is arranged on taper knob (6) interior butterfly spring (8) bottom, and bar portion runs through the circular hole on taper knob (6) and extends to the internal upper part of through hole (10); Two hands insert the one end of (7) symmetry and are arranged on taper knob (6) top; It is inner that the lower end mouth being arranged on the upper through hole (10) of valve body (1) is inserted in one end of flow-off joint (5); Valve pocket (4) is formed with the cylinder-like structure of opening for upper end, be located at the middle and lower part of through hole (10), in the middle part of it, peripheral wall is formed with the perforate (13) corresponding with above-mentioned high pressure water import (11) and high-pressure water outlet (12), lower circumference wall is formed with multiple overflow hole (14), and the position outer surface be positioned between perforate (13) and overflow hole (14) is fixed in flow-off joint (5) upper inside surface; Small valve-rod (2) is nail shape structure, and be located at the inside of through hole (10), its head contacts with the lower end of large valve rod (9), and bar portion is then arranged on valve pocket (4) interior middle and upper part; Spring (3) is enclosed within the bar portion outer surface of the small valve-rod (2) between head and valve pocket (4) upper end being positioned at small valve-rod (2).
2. pressure adjustment relief valve according to claim 1, is characterized in that: described high-pressure water outlet (12) is 3, is separately positioned on valve body (1) middle part and the position of high pressure water import 11 at a distance of 90 °, 180 °, 270 °.
3. pressure adjustment relief valve according to claim 1, is characterized in that: described taper knob (6) lower outer circumferential face and through hole (10) top inner peripheral surface, valve pocket (4) top outer peripheral surface and through hole (10) middle part inner peripheral surface, valve pocket (4) middle and lower part outer peripheral surface and flow-off joint (5) upper end inner peripheral surface and flow-off joint (5) middle part outer peripheral surface and through hole (10) bottom inner peripheral surface between be equipped with seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410718514.0A CN104454734B (en) | 2014-12-01 | 2014-12-01 | A kind of pressure adjustment relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410718514.0A CN104454734B (en) | 2014-12-01 | 2014-12-01 | A kind of pressure adjustment relief valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104454734A true CN104454734A (en) | 2015-03-25 |
| CN104454734B CN104454734B (en) | 2016-08-17 |
Family
ID=52901309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410718514.0A Expired - Fee Related CN104454734B (en) | 2014-12-01 | 2014-12-01 | A kind of pressure adjustment relief valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104454734B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438323A (en) * | 2016-10-31 | 2017-02-22 | 江阴市天润机械制造有限公司 | Oil pump oil overflow control valve facilitating oil quantity control |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5673274A (en) * | 1979-11-14 | 1981-06-17 | Daikin Ind Ltd | Electromagnetically proportional relief valve |
| JPH10153270A (en) * | 1996-11-22 | 1998-06-09 | Tokico Ltd | Valve device for air tank |
| CN201173324Y (en) * | 2008-01-15 | 2008-12-31 | 宁波恒瑞机械有限公司 | Pressure regulating unloading valve |
| JP2010255748A (en) * | 2009-04-24 | 2010-11-11 | Maruyama Mfg Co Ltd | Pressure regulating valve |
| CN103122884A (en) * | 2011-11-18 | 2013-05-29 | 广西柳工机械股份有限公司 | Adjustable pilot overflow valve |
| CN204327626U (en) * | 2014-12-01 | 2015-05-13 | 天津市通洁高压泵制造有限公司 | A kind of pressure adjustment relief valve |
-
2014
- 2014-12-01 CN CN201410718514.0A patent/CN104454734B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5673274A (en) * | 1979-11-14 | 1981-06-17 | Daikin Ind Ltd | Electromagnetically proportional relief valve |
| JPH10153270A (en) * | 1996-11-22 | 1998-06-09 | Tokico Ltd | Valve device for air tank |
| CN201173324Y (en) * | 2008-01-15 | 2008-12-31 | 宁波恒瑞机械有限公司 | Pressure regulating unloading valve |
| JP2010255748A (en) * | 2009-04-24 | 2010-11-11 | Maruyama Mfg Co Ltd | Pressure regulating valve |
| CN103122884A (en) * | 2011-11-18 | 2013-05-29 | 广西柳工机械股份有限公司 | Adjustable pilot overflow valve |
| CN204327626U (en) * | 2014-12-01 | 2015-05-13 | 天津市通洁高压泵制造有限公司 | A kind of pressure adjustment relief valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438323A (en) * | 2016-10-31 | 2017-02-22 | 江阴市天润机械制造有限公司 | Oil pump oil overflow control valve facilitating oil quantity control |
| CN106438323B (en) * | 2016-10-31 | 2018-05-04 | 江阴市天润机械制造有限公司 | A kind of oil pump oil spilling control valve easy to control oil mass |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104454734B (en) | 2016-08-17 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 Termination date: 20161201 |