CN101943202B - Link bolt with pilot type reducing valve - Google Patents
Link bolt with pilot type reducing valve Download PDFInfo
- Publication number
- CN101943202B CN101943202B CN2010102642194A CN201010264219A CN101943202B CN 101943202 B CN101943202 B CN 101943202B CN 2010102642194 A CN2010102642194 A CN 2010102642194A CN 201010264219 A CN201010264219 A CN 201010264219A CN 101943202 B CN101943202 B CN 101943202B
- Authority
- CN
- China
- Prior art keywords
- guide
- bolt
- spring
- central passage
- cavity
- 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 - Fee Related
Links
Landscapes
- Safety Valves (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a link bolt with a pilot type reducing valve, which comprises a bolt head (1) and a screw (2), wherein a central passage (3) is arranged in the screw (3); and a transverse passage (4) is arranged on the screw (2) and is communicated with the central passage (3). The link bolt is characterized in that an installation passage communicated with the central passage (3) is arranged in the bolt head (1). The link bolt also comprises a pilot valve body (5), a pilot valve plug (6), a spring I (7), a spring II (8), a pressure regulating piston (9), a pressure regulating screw (10) and a main valve plug (11). A liquid leakage passage (13) is arranged on the bolt, and is communicated with a cavity I (12). The pilot valve plug (6) is pressed on a valve port on the lower end of the pilot valve body (5) under the action of the spring I (7). The invention not only can effectively reduce pressure to a hydraulic circuit, but also saves installation space, and has the advantages of high reliability, convenient installation and low fault rate.
Description
Technical field
The present invention relates to bolt field, is a kind of hinge bolt that has piloted reducer specifically.
Background technique
The hinge bolt of existing technology generally comprises bolt head and screw rod, is provided with central passage in the described screw rod, and on the screw rod wall, is provided with crosspassage and communicates with central passage.The hinge bolt purposes is comparatively extensive; Be mainly used in Hydraulic Field, as be used in the hydraulic block on the oil hydraulic circuit, oil hydraulic pump import and export etc.; The crosspassage outlet port generally communicates with hydraulic system; And in the middle of these field using processs, hinge bolt only plays hinged effect can not change the inner fluid pressure of hydraulic system, can not play the effect of decompression certainly to system yet.So usually reduction valve need be installed separately on oil hydraulic circuit, associated components such as one-way valve reduce pressure to hydraulic system with realization.
Existing hinge bolt in oil hydraulic circuit only as coupling; All inoperative to fluid pressure, flow, the flow direction etc.; Control or change pressure, flow, the flow direction of liquid etc.; All various types of valves and other component to be installed in the loop, simultaneously controlled liquid be linked up through the hydraulic unit or the actuator of various terminal (comprising hinge bolt) with other.
In the middle of existing technology, reduction valve separates with hinge bolt, because the space of assembling is limited; Reduction valve is installed has separately been brought difficulty not only for the assembling of installation and part, increased component, operation also bothers relatively; Rate of fault also can raise, and the reliability variation is unfavorable for maintenance; Brought inconvenience for the reasonable use of device, and be installed separately the overall number of components and the weight that make in the oil hydraulic circuit and all will increase, influenced using scope and working life, reached reliability.
Summary of the invention
The technical problem that the present invention will solve is, provides a kind of and can reduce pressure, save installing space, the hinge bolt that has piloted reducer that reliability is high to oil hydraulic circuit.
Technical solution of the present invention is, a kind of hinge bolt that has piloted reducer of following structure is provided, and comprises bolt head and screw rod, is provided with central passage in the described screw rod, and on screw rod, is provided with crosspassage and communicates with central passage.
Be provided with the installation channel that communicates with central passage in the described bolt head; Described hinge bolt also comprises guide's valve body, guide's spool, spring I, spring II, relief piston, screw press and main valve plug; Described guide's valve body is installed in the bolt, is provided with cavity I in guide's valve body; Described relief piston is arranged in the cavity I, and described spring I one end is fixed on the relief piston, and the other end is fixed on guide's spool; Described screw press screws in cavity I and withstands relief piston; On bolt, be provided with the drainage passage, described drainage passage communicates with cavity I; Described guide's spool withstands the valve port that is positioned at guide's valve body lower end under the effect of spring I; Described main valve plug 11 is installed in the central passage 3; Be provided with the main valve plug passage that can communicate in the main valve plug 11 with crosspassage; Form cavity II between main valve plug and the guide's valve body, the end of described spring II is fixed on guide's valve body, and the other end is fixed on the main valve plug; Be provided with feed pathway in the described screw rod, described feed pathway communicates with central passage.
Adopt above structure, the present invention compared with prior art has the following advantages: adopt structure of the present invention, piloted reducer is housed in hinge bolt; The function that makes the present invention collect reduction valve and hinge bolt is an one, and the crosspassage outlet is liquid outlet, when normally using; The hydraulic pressure of liquid outlet is that interior hydraulic pressure of cavity II and the setting power of spring I balance each other; When the hydraulic pressure of liquid outlet was higher than the setting power of spring I, guide's spool was opened, and moved on the main valve plug simultaneously; And the area that passes through between crosspassage and the feed pathway is reduced until closing, to realize the effect of decompression and voltage stabilizing.Installing space, reliability height reduced pressure, saved to the present invention can to oil hydraulic circuit effectively, and be convenient to install, and rate of fault is low.
As improvement, also be provided with remote control port on the described bolt, described remote control port is communicated with cavity II.Like this, can realize the remote control of reducing pressure through remote control port is opened,, make using scope of the present invention more extensively have more practicability.
As further improvement, in the described central passage one-way valve is housed, described one-way valve comprises spool and spring III, one-way valve is positioned at the below of main valve plug.Like this, when the liquid reverse direction operation was worked, a part of liquid came out from feed pathway, and some can be opened one-way valve and come out from central passage, has increased the circulation area of reverse flow.
Description of drawings
Accompanying drawing has the structural representation of the hinge bolt of piloted reducer for the present invention.
As shown in the figure 1, bolt head, 2, screw rod, 3, central passage, 4, crosspassage, 5, guide's valve body; 6, guide's spool, 7, spring I, 8, spring II, 9, relief piston, 10, screw press; 11, main valve plug, 12, cavity I, 13, the drainage passage, 14 damping holes, 15, the main valve plug passage; 16, cavity II, 17, feed pathway, 18 remote control port, 19, nonreturn valve core, 20, spring III.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is described further.
The hinge bolt that has piloted reducer of the present invention comprises bolt head 1 and screw rod 2, is provided with central passage 3 in the described screw rod, and on screw rod, is provided with crosspassage 4 and can communicates with central passage 3.
Be provided with the installation channel that communicates with central passage in the described bolt head; Described hinge bolt also comprises guide's valve body 5, guide's spool 6, spring I 7, spring II 8, relief piston 9, screw press 10 and main valve plug 11; Described guide's valve body 5 is installed in the bolt head 1, is provided with cavity I 12 in guide's valve body 5; Described relief piston 9 is arranged in the cavity I 12, and described spring I 7 one ends are fixed on the relief piston 9, and the other end is fixed on guide's spool 6; Described screw press 10 screws in cavity I 12 and withstands relief piston 9; On bolt, be provided with drainage passage 13, described drainage passage 13 communicates with cavity I 12; Described guide's spool 6 withstands the valve port that is positioned at guide's valve body 5 lower ends under the effect of spring I 7; Described main valve plug 11 is installed in the central passage 3; Be provided with the main valve plug passage 15 that can communicate in the main valve plug 11 with crosspassage 4; Form cavity II 16 between main valve plug 11 and the guide's valve body 5, the end of described spring II 8 is fixed on guide's valve body 5, and the other end is fixed on the main valve plug 11; Be provided with feed pathway 17 in the described screw rod 2.
Also be provided with remote control port 18 on the described bolt, described remote control port 18 is communicated with cavity II 16.
In the described central passage 3 one-way valve is housed, described one-way valve comprises nonreturn valve core 19 and spring III20, and one-way valve is positioned at the below of main valve plug 11.
Claims (3)
1. hinge bolt that has piloted reducer; Comprise bolt head (1) and screw rod (2); Be provided with central passage (3) in the described screw rod; And on screw rod, be provided with crosspassage (4) and communicate with central passage (3), it is characterized in that: be provided with the installation channel that communicates with central passage in the described bolt head, described hinge bolt also comprises guide's valve body (5), guide's spool (6), spring I (7), spring II (8), relief piston (9), screw press (10) and main valve plug (11); Described guide's valve body (5) is installed in the bolt head (1), is provided with cavity I (12) in guide's valve body (5); Described relief piston (9) is arranged in the cavity I (12), and described spring I (7) one ends are fixed on the relief piston (9), and the other end is fixed on guide's spool (6); Described screw press (10) screws in cavity I (12) and withstands relief piston (9); On bolt, be provided with drainage passage (13), described drainage passage (13) communicates with cavity I (12); Described guide's spool (6) withstands the valve port that is positioned at guide's valve body (5) lower end under the effect of spring I (7); Described main valve plug (11) is installed in the central passage (3); Be provided with the main valve plug passage (15) that can communicate in the main valve plug (11) with crosspassage (4); Form cavity II (16) between main valve plug (11) and the guide's valve body (5); The end of described spring II (8) is fixed on guide's valve body (5), and the other end is fixed on the main valve plug (11); Be provided with feed pathway (17) in the described screw rod (2), described feed pathway (17) communicates with central passage (3).
2. the hinge bolt that has piloted reducer according to claim 1 is characterized in that: also be provided with remote control port (18) on the described bolt, described remote control port (18) is communicated with cavity II (16).
3. the hinge bolt that has piloted reducer according to claim 1; It is characterized in that: described central passage is equipped with one-way valve in (3); Described one-way valve comprises nonreturn valve core (19) and spring III (20), and one-way valve is positioned at the below of main valve plug (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102642194A CN101943202B (en) | 2010-08-22 | 2010-08-22 | Link bolt with pilot type reducing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102642194A CN101943202B (en) | 2010-08-22 | 2010-08-22 | Link bolt with pilot type reducing valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101943202A CN101943202A (en) | 2011-01-12 |
| CN101943202B true CN101943202B (en) | 2012-03-14 |
Family
ID=43435356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102642194A Expired - Fee Related CN101943202B (en) | 2010-08-22 | 2010-08-22 | Link bolt with pilot type reducing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101943202B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102102689B (en) * | 2011-01-30 | 2013-04-10 | 林友根 | Hydraulic one-way valve |
| CN102072216B (en) * | 2011-01-30 | 2014-12-17 | 林友根 | Energy-saving reducing valve for hydraulic system |
| CN102563140A (en) * | 2012-01-02 | 2012-07-11 | 林友根 | Pilot-operated one-way sequence valve |
| CN102563141B (en) * | 2012-01-02 | 2013-11-27 | 林友根 | Direct-acting internally piloted one-way sequence valve |
| CN102818046A (en) * | 2012-08-30 | 2012-12-12 | 三一重型装备有限公司 | Reducing valve, roadheader water system and roadheader |
| CN108756444B (en) * | 2018-05-23 | 2024-03-22 | 盐城市佰瑞达体育用品有限公司 | Tent nail convenient to installation |
| CN111043128B (en) * | 2019-12-12 | 2021-07-06 | 绍兴山耐高压紧固件有限公司 | Self-pressure-relief bolt fastener |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191017854A (en) * | 1910-07-27 | 1911-07-13 | Rice And Company Leeds Ltd | Improvements in Valves for Controlling the Pressure Water of Hydraulic Machines. |
| CN88200110U (en) * | 1988-01-15 | 1988-10-19 | 航天工业部第十一研究所 | Pilot bellows type relief valve |
| CN201281049Y (en) * | 2008-09-19 | 2009-07-29 | 郑州宇通重工有限公司 | Swing bolt mounted with one-way throttle valve |
| CN201843881U (en) * | 2010-08-22 | 2011-05-25 | 林友根 | Hinged bolt with pilot-operated reducing valve |
-
2010
- 2010-08-22 CN CN2010102642194A patent/CN101943202B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191017854A (en) * | 1910-07-27 | 1911-07-13 | Rice And Company Leeds Ltd | Improvements in Valves for Controlling the Pressure Water of Hydraulic Machines. |
| CN88200110U (en) * | 1988-01-15 | 1988-10-19 | 航天工业部第十一研究所 | Pilot bellows type relief valve |
| CN201281049Y (en) * | 2008-09-19 | 2009-07-29 | 郑州宇通重工有限公司 | Swing bolt mounted with one-way throttle valve |
| CN201843881U (en) * | 2010-08-22 | 2011-05-25 | 林友根 | Hinged bolt with pilot-operated reducing valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101943202A (en) | 2011-01-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101943202B (en) | Link bolt with pilot type reducing valve | |
| CN201180705Y (en) | High-pressure high-volume hydraulic loop device | |
| CN103089729B (en) | Quantitative system load-sensitive multiple directional control valve | |
| CN102606554B (en) | Pressure regulating device and hydraulic system | |
| CN101655165B (en) | Novel three-way pressure reducing valve | |
| CN201215190Y (en) | Digital solenoid electric valve | |
| CN104989690A (en) | Overload relief valve | |
| CN201843881U (en) | Hinged bolt with pilot-operated reducing valve | |
| CN201269329Y (en) | Three-way pressure reducing valve | |
| CN202790680U (en) | Electronic controlled proportional multi-way valve | |
| CN102563141B (en) | Direct-acting internally piloted one-way sequence valve | |
| CN103541942B (en) | Be applicable to the bidirectional control valve of short-wall coal-winning machine height-adjusting system | |
| CN202612761U (en) | Direct-acting type internal-control unidirectional sequence valve | |
| CN101907119A (en) | Link bolt with unloading overflow valve | |
| CN101893025B (en) | Link bolt capable of maintaining stable internal hydraulic pressure | |
| CN102563140A (en) | Pilot-operated one-way sequence valve | |
| CN105840575A (en) | Slowly open-close electro-hydraulic directional valve | |
| CN213899448U (en) | Proportional pressure reducing valve with integrated pressure stabilizing function | |
| CN117386604A (en) | Small-flow double-outlet electromagnetic plunger pump | |
| CN102563183A (en) | Direct-acting externally piloted one-way sequence valve | |
| CN204704187U (en) | Overload unloading valve | |
| CN202251184U (en) | Control cover plate with pressure reduction function | |
| CN109595374A (en) | A kind of double membrane configurations hold pressure pressure release control pilot valve and control method | |
| CN212360357U (en) | Control system and transport vechicle of pump source | |
| CN2934660Y (en) | Hydraulic integral pump source valve block |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| 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: 20120314 |