CN102563141B - Direct-acting internally piloted one-way sequence valve - Google Patents
Direct-acting internally piloted one-way sequence valve Download PDFInfo
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- CN102563141B CN102563141B CN2012100050410A CN201210005041A CN102563141B CN 102563141 B CN102563141 B CN 102563141B CN 2012100050410 A CN2012100050410 A CN 2012100050410A CN 201210005041 A CN201210005041 A CN 201210005041A CN 102563141 B CN102563141 B CN 102563141B
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- 239000007788 liquid Substances 0.000 claims abstract description 80
- 230000006872 improvement Effects 0.000 description 7
- 239000012530 fluid Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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Abstract
The invention discloses a direct-acting internally piloted one-way sequence valve, which comprises a valve body (1), a main valve spool (2), a pressure adjusting piston (3) and an adjusting rod (4). A liquid inlet (5) and a liquid outlet (6) are arranged on the valve body (1), the main valve spool (2), the pressure adjusting piston (3) and the adjusting rod (4) are arranged in the valve body (1), the outer diameter of the head at the upper end of the valve body (1) is larger than that of a portion below the head, an external thread is arranged on the portion below the head of the valve body, a pressure adjusting spring is connected between the pressure adjusting piston (3) and the main valve spool (2), the adjusting rod is abutted to the pressure adjusting piston (3), a drainage channel (8) is arranged in the valve body, and a valve spool channel (9) for communicating the liquid inlet with the liquid outlet is arranged on the main valve spool. The external shape of the valve body is equivalent to that of a hinged bolt, a hydraulic part and a pipeline can be connected by the valve body, and the hinged bolt and the direct-acting internally piloted one-way sequence valve are integrated.
Description
Technical field
The present invention relates to the hydraulic valve field, is a kind of direct-acting type internal control one way sequence valve specifically.
Background technique
Sequence valve is in having the system of two or more duplexures, to control fluid pressure, valve port is opened and closed, thereby controls the valve that executive component is realized the predetermined sequence action.Direct Segueuce Valve is divided into internal control type and externally controlled type, direct-acting type internal control sequence valve judges whether the opening sequence valve according to the fluid pressure of liquid entering hole, namely when the pressure at liquid entering hole place is greater than and overcomes the pressure of spring, main valve plug just can be under the promotion of controlling liquid, make the liquid in-out mouth communicate, sequence valve is opened, thereby makes the work of next stage hydraulic element; When needs closing sequence valve, reduce the pressure of liquid entering hole, main valve plug resets under the effect of spring.
Because direct-acting type internal control one way sequence valve generally is used in hydraulic system, and often need hollow hinge bolt to connect between the hydraulic part in hydraulic system and pipeline, when needs are used direct-acting type internal control one way sequence valve, direct-acting type internal control one way sequence valve need be installed separately on pipeline, be that direct-acting type internal control one way sequence valve separates with hinge bolt, when installing and use, location need to be installed respectively, operation bothers relatively, now rate of fault is also higher, be unfavorable for maintenance, brought inconvenience to use.
Summary of the invention
The technical problem to be solved in the present invention is, a kind of direct-acting type internal control one way sequence valve that can play connection function to hydraulic part and the pipeline of hydraulic system is provided, and namely integrates hinge bolt and direct-acting type internal control one way sequence valve.
Technical solution of the present invention is, a kind of direct-acting type internal control one way sequence valve of following structure is provided, comprise valve body, main valve plug, relief piston and adjustable lever, described valve body is provided with liquid entering hole and liquid outlet, and described main valve plug, relief piston and adjustable lever are arranged in valve body; The external diameter of described valve body upper end head is greater than the external diameter of the following part of head, the following part of described valve head is provided with outside thread, between described relief piston and main valve plug, be connected with pressure adjusting spring, described adjustable lever withstands relief piston, in described valve body, be provided with the drainage passage, described main valve plug is provided be used to being communicated with the valve core channel of liquid in-out mouth.
Adopt above structure, the present invention compared with prior art has the following advantages: adopt the present invention, on the valve wall of valve body or valve body lower end offer respectively liquid entering hole and liquid outlet, select as required the position of offering of liquid entering hole and liquid outlet, when the hydraulic pressure of liquid entering hole is less than the pressure of pressure adjusting spring, main valve plug is closed, and liquid entering hole does not communicate with liquid outlet; When the hydraulic pressure of liquid entering hole is greater than the pressure of pressure adjusting spring, main valve plug is up to certain position, liquid entering hole communicates with liquid outlet, the liquid of liquid entering hole enters liquid outlet through valve core channel, liquid flows out from liquid outlet, make next stage hydraulic element actions, when inlet pressure is less than this valve setting pressure, main valve plug can be under the effect of pressure adjusting spring return; The external shape of valve body of the present invention is equivalent to a hinge bolt, can play connection function to hydraulic part and pipeline, make the present invention integrate hinge bolt and direct-acting type internal control one way sequence valve, the location layout of the liquid in-out mouth of this valve and the import of control liquid is more reasonable simultaneously, is convenient to control fluid flow and regulates pressure.
As improvement, in described main valve plug, be provided with nonreturn valve core, spring I and be used to being communicated with the half-duplex channel of liquid in-out mouth, spring I mono-end is fixed on main valve plug, the other end is fixed on nonreturn valve core, described nonreturn valve core withstands half-duplex channel, namely on main valve plug, increase one-way valve, when the hydraulic pressure of liquid entering hole is greater than the hydraulic pressure of liquid outlet, the one-way valve cut-off, when the hydraulic pressure of liquid outlet is greater than the hydraulic pressure of liquid entering hole, the one-way valve conducting, now the liquid at liquid outlet place can be back to liquid entering hole, this product is used more convenient.
As improvement, described relief piston is the hollow shell-like, opening down, and an end of pressure adjusting spring is fixed on the inner bottom part of relief piston, and the other end withstands on main valve plug.Like this, relief piston can, preferably to the pressure adjusting spring guiding, make main valve plug stressed evenly.
As improvement, described liquid in-out mouth all is arranged on the valve wall of valve body, the valve body lower end sealing,, liquid enters from liquid entering hole, has overcome the pressure of pressure adjusting spring, thereby promote main valve plug, rise, the liquid in-out mouth on valve body is communicated with through valve core channel, use and easy to adjust.
As improvement, described liquid entering hole is arranged on the valve wall of valve body, and liquid outlet is arranged on the lower end of valve body, and liquid outlet comprises two-part, and a part directly communicates with valve body, and another part extends and communicates with valve body in the valve wall of valve body; Perhaps, liquid outlet is arranged on the valve wall of valve body, and liquid entering hole is arranged on the lower end of valve body, and liquid entering hole comprises two-part, and a part directly communicates with valve body, and another part extends and communicates with valve body in the valve wall of valve body.This is two kinds of design proposals of liquid in-out mouth, and the direction of the one-way valve of these two kinds of designs is opposite, and the design, in order to meet the specific demand of using, has enlarged the Applicable scope of product.
As improvement, described valve core channel is included in the cavity formed between groove on main valve plug and valve interior wall, and the length of cavity is greater than the beeline between the liquid in-out mouth, and the design of this passage is not only easy to process, and be convenient to regulate, improved the controllability of product.
As improvement, the lower end of described main valve plug is provided with balance spring, and described balance spring one end is connected to the lower end of main valve plug, the other end is fixed on valve body lower portion, sets up balance spring, makes the motion of main valve plug more steady, balance spring and pressure adjusting spring are used in conjunction with simultaneously, regulate convenient.
As improvement, the outer surface of described main valve plug is provided with annular protrusion, the hydraulic pressure of liquid entering hole is relevant with the end face of main valve plug to the thrust that main valve plug produces like this, after setting up annular protrusion, reduced the surface of contact of the liquid of main valve plug and liquid entering hole, thereby reduced the thrust to main valve plug, made pressure adjusting spring can adapt to higher hydraulic pressure, it is more convenient to operate, and main valve plug does not need to establish annular protrusion if system pressure is not high.
The accompanying drawing explanation
Fig. 1 is the structural representation (embodiment 1) of direct-acting type internal control one way sequence valve of the present invention.
Fig. 2 is the structural representation (embodiment 2) of direct-acting type internal control one way sequence valve of the present invention.
Fig. 3 is the structural representation (embodiment 3) of direct-acting type internal control one way sequence valve of the present invention.
As shown in the figure 1, valve body, 2, main valve plug, 3, relief piston, 4, adjustable lever, 5, liquid entering hole, 6, liquid outlet, 7, pressure adjusting spring, 8, the drainage passage, 9, valve core channel, 10, nonreturn valve core, 11, spring I, 12, half-duplex channel, 13, balance spring, 14, annular protrusion, 15, interior outer nut, 16, set screw nut, 17, handwheel.
Embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments.
As shown in Figure 1,2 and 3, direct-acting type internal control one way sequence valve of the present invention, comprise valve body 1, main valve plug 2, relief piston 3 and adjustable lever 4, described valve body 1 is provided with liquid entering hole 5 and liquid outlet 6, and described main valve plug 2, relief piston 3 and adjustable lever 4 are arranged in valve body 1; The external diameter of described valve body 1 upper end head is greater than the external diameter of the following part of head, the following part of described valve head is provided with outside thread, between described relief piston 3 and main valve plug 2, be connected with pressure adjusting spring 7, described adjustable lever 4 withstands relief piston 3, in described valve body 1, be provided with drainage passage 8, described main valve plug 2 is provided with the valve core channel 9 be used to being communicated with the liquid in-out mouth.
In described main valve plug, be provided with nonreturn valve core 10, spring I 11 and the half-duplex channel 12 be used to being communicated with the liquid in-out mouth, spring I 11 1 ends are fixed on main valve plug 2, and the other end is fixed on nonreturn valve core 10, and described nonreturn valve core 10 withstands half-duplex channel 12.
As illustrated in fig. 1 and 2, described relief piston 3 is the hollow shell-like, and opening down, an end of pressure adjusting spring 7 is fixed on the inner bottom part of relief piston 3, and the other end withstands on main valve plug 2; As shown in Figure 3, relief piston 3 and Fig. 1,2 different, be solid, and two kinds of different embodiments just, all applicable to this product.
As Fig. 1, described liquid in-out mouth all is arranged on the valve wall of valve body 1, and the valve body lower end base closed, only have the drainage aperture, and liquid entering hole is arranged near valve body lower portion one side, and liquid outlet is located at the liquid entering hole top.
As shown in Figure 2,3, it is the two schemes that the liquid in-out mouth arranges, be that described liquid entering hole 5 is arranged on the valve wall of valve body 1, liquid outlet 6 is arranged on the lower end of valve body 1, liquid outlet 6 comprises two-part, a part directly communicates with valve body 1, and another part extends and communicates with valve body 1 in the valve wall of valve body 1; Perhaps, liquid outlet 6 is arranged on the valve wall of valve body 1, and liquid entering hole 5 is arranged on the lower end of valve body 1, and liquid entering hole 5 comprises two-part, and a part directly communicates with valve body 1, and another part extends and communicates with valve body 1 in the valve wall of valve body 1.In Fig. 2, the drainage passage has two, in actual the use, can select one of them outlet, and another outlet is blocked.
Described valve core channel 9 is included in the cavity formed between groove on main valve plug 2 and valve body 1 inwall, and the length of cavity is greater than the beeline between the liquid in-out mouth; Described beeline refers to, the distance at the edge that the liquid in-out mouth is mutual close.
The lower end of described main valve plug 2 is provided with balance spring 13, and described balance spring 13 1 ends are connected to the lower end of main valve plug 2, and the other end is fixed on valve body 1 bottom.
The outer surface of described main valve plug 2 is provided with annular protrusion 14.When work system pressure is low, also can not establish annular protrusion.
Described valve body 1 upper end is arranged with interior outer nut 15, and described adjustable lever 4 screws in interior outer nut 15, and adopts 16 pairs of adjustable levers of set screw nut 4 fixing.Described adjustable lever 4 is provided with handwheel 17 in order to rotate the regulating and controlling bar.
Below only with regard to preferred embodiment of the present invention, be described, but can not be interpreted as it is limitations on claims.The present invention not only is confined to above embodiment, and its concrete structure allows to change, and as the drainage passage, according to different embodiments, the drainage passage is different in the position of valve body, etc.In a word, all various variations of doing in the protection domain of independent claims of the present invention are all in protection scope of the present invention.
Claims (5)
1. direct-acting type internal control one way sequence valve, comprise valve body (1), main valve plug (2), relief piston (3) and adjustable lever (4), described valve body (1) is provided with liquid entering hole (5) and liquid outlet (6), described main valve plug (2), relief piston (3) and adjustable lever (4) are arranged in valve body (1), it is characterized in that: the external diameter of described valve body (1) upper end head is greater than the external diameter of the following part of head, the following part of described valve head is provided with outside thread, between described relief piston (3) and main valve plug (2), be connected with pressure adjusting spring (7), described adjustable lever (4) withstands relief piston (3), in described valve body (1), be provided with drainage passage (8), described main valve plug (2) is provided with the valve core channel (9) be used to being communicated with the liquid in-out mouth, liquid outlet (6) is arranged on the valve wall of valve body (1), liquid entering hole (5) is arranged on the lower end of valve body (1), liquid entering hole (5) comprises two-part, a part directly communicates with valve body (1), and another part extends and communicates with valve body (1) in the valve wall of valve body (1), the outer surface of described main valve plug (2) is provided with annular protrusion (14).
2. direct-acting type internal control one way sequence valve according to claim 1, it is characterized in that: in described main valve plug (2), be provided with nonreturn valve core (10), spring I (11) and the half-duplex channel (12) be used to being communicated with the liquid in-out mouth, spring I (11) one ends are fixed on main valve plug (2), it is upper that the other end is fixed on nonreturn valve core (10), and described nonreturn valve core (10) withstands half-duplex channel (12).
3. direct-acting type internal control one way sequence valve according to claim 1, it is characterized in that: described relief piston (3) is the hollow shell-like, opening down, an end of pressure adjusting spring (7) is fixed on the inner bottom part of relief piston (3), and the other end withstands on main valve plug (2).
4. direct-acting type internal control one way sequence valve according to claim 1, it is characterized in that: described valve core channel (9) is included in the cavity formed between groove on main valve plug (2) and valve body (1) inwall, and the length of cavity is greater than the beeline between the liquid in-out mouth; Described beeline refers to, the distance at the edge that the liquid in-out mouth is mutual close.
5. direct-acting type internal control one way sequence valve according to claim 1, it is characterized in that: the lower end of described main valve plug (2) is provided with balance spring (13), described balance spring (13) one ends are connected to the lower end of main valve plug (2), and the other end is fixed on valve body (1) bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100050410A CN102563141B (en) | 2012-01-02 | 2012-01-02 | Direct-acting internally piloted one-way sequence valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100050410A CN102563141B (en) | 2012-01-02 | 2012-01-02 | Direct-acting internally piloted one-way sequence valve |
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| Publication Number | Publication Date |
|---|---|
| CN102563141A CN102563141A (en) | 2012-07-11 |
| CN102563141B true CN102563141B (en) | 2013-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100050410A Expired - Fee Related CN102563141B (en) | 2012-01-02 | 2012-01-02 | Direct-acting internally piloted one-way sequence valve |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223473B (en) * | 2018-01-17 | 2020-05-08 | 玉环鸿创阀门有限公司 | One-way sequence valve |
| CN108758041B (en) * | 2018-08-28 | 2019-08-23 | 上海江浪科技股份有限公司 | A kind of No leakage one way sequence valve |
| CN114576229B (en) * | 2022-03-01 | 2023-01-20 | 江苏菲尔特液压机械有限公司 | Tubular one-way sequence valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943202A (en) * | 2010-08-22 | 2011-01-12 | 林友根 | Link bolt with pilot type reducing valve |
| CN102072216A (en) * | 2011-01-30 | 2011-05-25 | 林友根 | Energy-saving reducing valve for hydraulic system |
| CN102102689A (en) * | 2011-01-30 | 2011-06-22 | 林友根 | Hydraulic one-way valve |
| CN202612761U (en) * | 2012-01-02 | 2012-12-19 | 林友根 | Direct-acting type internal-control unidirectional sequence valve |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61223304A (en) * | 1985-03-27 | 1986-10-03 | Toyoda Autom Loom Works Ltd | Pilot check valve equipped with decompression |
| JPS6249071U (en) * | 1985-09-13 | 1987-03-26 |
-
2012
- 2012-01-02 CN CN2012100050410A patent/CN102563141B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943202A (en) * | 2010-08-22 | 2011-01-12 | 林友根 | Link bolt with pilot type reducing valve |
| CN102072216A (en) * | 2011-01-30 | 2011-05-25 | 林友根 | Energy-saving reducing valve for hydraulic system |
| CN102102689A (en) * | 2011-01-30 | 2011-06-22 | 林友根 | Hydraulic one-way valve |
| CN202612761U (en) * | 2012-01-02 | 2012-12-19 | 林友根 | Direct-acting type internal-control unidirectional sequence valve |
Non-Patent Citations (2)
| Title |
|---|
| JP昭61-223304A 1986.10.03 |
| JP昭62-049071U 1987.03.26 |
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| CN102563141A (en) | 2012-07-11 |
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Granted publication date: 20131127 |