CN102996433A - Grouting pump safety valve - Google Patents
Grouting pump safety valve Download PDFInfo
- Publication number
- CN102996433A CN102996433A CN2012104272294A CN201210427229A CN102996433A CN 102996433 A CN102996433 A CN 102996433A CN 2012104272294 A CN2012104272294 A CN 2012104272294A CN 201210427229 A CN201210427229 A CN 201210427229A CN 102996433 A CN102996433 A CN 102996433A
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- spring
- valve
- chamber
- valve core
- pressure
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Abstract
The invention relates to the technical field of grouting pumps, and in particular relates to a grouting pump safety valve which comprises a valve core, a spring and a valve body; the valve body is internally provided with a spring chamber, a valve core chamber and a pressure chamber which are communicated sequentially; the spring is arranged in the spring chamber; the valve core is arranged in the valve core chamber, one end of the valve core is inserted into the end part of the spring chamber and is elastically connected with the spring, and the other end of the valve core is provided with a frustum body and is in contact and connected with the end part of the pressure chamber; and the valve body has a pressure hole communicated with the pressure chamber and a grout discharge hole communicated with the valve core chamber. According to the invention, great pressure in grout liquids can be relieved; applied force acting on the valve core changes tiny, and has low rigidity requirement on the spring; the valve port diameter can be expanded, and the hazard of valve port blocking is removed; and moreover, the pitch of the spring can be increased, and under the equal applied force, the stroke is lengthened, and full-quantity unload can be ensured under the condition of grouting pipeline blocking.
Description
Technical field
The present invention relates to the grouting pump field, especially is a kind of grouting pump safety valve.
Background technique
The safety valve that uses on the existing grouting pump, when slurries pressure was higher, active force was just larger, rigidity requirement to spring is also just higher, and therefore, pressure is higher, the volume of spring is just larger, in order to limit the volume of safety valve, can only reduce valve port diameter, valve port diameter is too small, and safety valve can only play warning effect, can not be in the situation that grouting pipeline stops up, the full dose off-load, and because the particularity of slurries, the too small meeting of valve port causes obstruction, safety valve can not in time be opened, and potential safety hazard is arranged.
Summary of the invention
The object of the invention is to solve the problems of the technologies described above, and a kind of grouting pump safety valve that can the full dose off-load is provided, and is specifically realized by following technological scheme.
A kind of grouting pump safety valve, comprise spool, spring and valve body, be provided with the spring housing, valve core chamber and the pressure chamber that are communicated with successively in the described valve body, described spring places in the spring housing, described spool places valve core chamber, the one end is plugged in the end of spring housing and is connected with spring, and its other end is provided with cone table and is connected with the contact of end, pressure chamber, and described valve body is provided with the pressure port that is communicated with the pressure chamber and the slurry discharging hole that is communicated with valve core chamber.
Described grouting pump safety valve, it further designs and is, described spool comprises the coaxial cone table that is fixedly connected with and cylindrical body, cone table is provided with waney large end face and small end face, described large end face be fixedly connected with cylindrical body and this large end face greater than cylindrical cross section, cylindrical body one end of described spool is plugged in the corresponding end of spring housing and connects in spring, and this splicing position is provided with a seal ring; The internal diameter of pressure chamber forms a step between the two less than valve core chamber, and the conical surface of described cone table is connected with this step contact.
The present invention can dissolve the immense pressure in the slurries, and the active force that acts on the spool can become very little, and is less demanding to the rigidity of spring.Can enlarge valve port diameter, remove the hidden danger that valve port stops up, and can increase the pitch of spring, under the equivalent effect power, stroke lengthens, and guarantees in the situation that grouting pipeline stops up, can the full dose off-load.
Description of drawings
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with Figure of description and specific embodiment the present invention is further specified.
This grouting pump safety valve, comprise spool 1, spring 2 and valve body 3, be provided with the spring housing 31, valve core chamber 32 and the pressure chamber 33 that are communicated with successively in the valve body, spring 2 places in the spring housing 31, spool 1 places valve core chamber 32, spool 1 comprises the coaxial cone table that is fixedly connected with 11 and cylindrical body 12, cone table is provided with waney large end face and small end face, large end face be fixedly connected with cylindrical body and this large end face greater than cylindrical cross section, cylindrical body one end of spool 1 is plugged in the corresponding end of spring housing 31 and connects in spring, and this splicing position is provided with a seal ring 4; The internal diameter of pressure chamber forms a step 5 between the two less than valve core chamber, and the conical surface of cone table is connected with this step contact.Valve body 3 is provided with the pressure port 34 that is communicated with the pressure chamber and the slurry discharging hole 35 that is communicated with valve core chamber.
The high pressure slurries enter from high-pressure mouth, in the pressure chamber 33, after part is backed down spool 1, slurries enter valve core chamber, because the large end face of cone table is greater than cylindrical cross section, so that spool is subject to entering the pressure of slurries in the valve core chamber in a cylindrical side, the pressure of slurries acts on the bi-side of spool 1 simultaneously, namely one side is the one side relative with the pressure chamber, and another side is the stress surface that above-mentioned cone table large end face has more than the cylindrical body cross section, forms active force and reaction force, when the difference of final active force surpasses the pretightening force of spring, spool separates with valve seat, and slurries are through valve port, from letting out slurry mouthful discharge.
The present invention can dissolve the immense pressure in the slurries, and the active force that acts on the spool can become very little, and is less demanding to the rigidity of spring.Can enlarge valve port diameter, remove the hidden danger that valve port stops up, and can increase the pitch of spring, under the equivalent effect power, stroke lengthens, and guarantees in the situation that grouting pipeline stops up, can the full dose off-load.
Claims (2)
1. grouting pump safety valve, comprise spool, spring and valve body, be provided with the spring housing, valve core chamber and the pressure chamber that are communicated with successively in the described valve body, described spring places in the spring housing, described spool places valve core chamber, the one end is plugged in the end of spring housing and is connected with spring, and its other end is provided with cone table and is connected with the contact of end, pressure chamber, and described valve body is provided with the pressure port that is communicated with the pressure chamber and the slurry discharging hole that is communicated with valve core chamber.
2. grouting pump safety valve according to claim 1, it is characterized in that, described spool comprises the coaxial cone table that is fixedly connected with and cylindrical body, cone table is provided with waney large end face and small end face, described large end face be fixedly connected with cylindrical body and this large end face greater than cylindrical cross section, cylindrical body one end of described spool is plugged in the corresponding end of spring housing and is connected with spring, and this splicing position is provided with a seal ring; The internal diameter of pressure chamber forms a step between the two less than valve core chamber, and the conical surface of described cone table is connected with this step contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104272294A CN102996433A (en) | 2012-10-31 | 2012-10-31 | Grouting pump safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104272294A CN102996433A (en) | 2012-10-31 | 2012-10-31 | Grouting pump safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102996433A true CN102996433A (en) | 2013-03-27 |
Family
ID=47925421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104272294A Pending CN102996433A (en) | 2012-10-31 | 2012-10-31 | Grouting pump safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102996433A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4706705A (en) * | 1986-04-01 | 1987-11-17 | The Lee Company | Check valve |
| CN2276014Y (en) * | 1996-01-31 | 1998-03-11 | 邱金城 | Pneumatic controlled multifunctional hydraulic lift valve |
| US5782259A (en) * | 1994-06-16 | 1998-07-21 | Ledbetter; Harold J. | Pressure relief valve |
| US20010052361A1 (en) * | 2000-06-16 | 2001-12-20 | Bosch Automative System Corporation | Pressure relief valve |
| EP1251266A1 (en) * | 2001-04-18 | 2002-10-23 | Robert Bosch Gmbh | Pressure limiting device and fuel system with such a pressure limiting device |
| US20040134539A1 (en) * | 2001-03-27 | 2004-07-15 | Horst Ressel | Pressure limiting valve for fuel injection devices |
| US20050051218A1 (en) * | 2003-01-17 | 2005-03-10 | Kenzo Oba | Relief valve |
| CN201236983Y (en) * | 2008-01-18 | 2009-05-13 | 上海裕歆电器有限公司 | Overflow valve of high-pressure pump |
| CN201891882U (en) * | 2010-10-12 | 2011-07-06 | 杭州春江阀门有限公司 | Adjustable pressure relief and pressure holding valve |
| CN202834242U (en) * | 2012-10-31 | 2013-03-27 | 镇江宝城注浆设备有限公司 | Grouting pump safe valve |
-
2012
- 2012-10-31 CN CN2012104272294A patent/CN102996433A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4706705A (en) * | 1986-04-01 | 1987-11-17 | The Lee Company | Check valve |
| US5782259A (en) * | 1994-06-16 | 1998-07-21 | Ledbetter; Harold J. | Pressure relief valve |
| CN2276014Y (en) * | 1996-01-31 | 1998-03-11 | 邱金城 | Pneumatic controlled multifunctional hydraulic lift valve |
| US20010052361A1 (en) * | 2000-06-16 | 2001-12-20 | Bosch Automative System Corporation | Pressure relief valve |
| US20040134539A1 (en) * | 2001-03-27 | 2004-07-15 | Horst Ressel | Pressure limiting valve for fuel injection devices |
| EP1251266A1 (en) * | 2001-04-18 | 2002-10-23 | Robert Bosch Gmbh | Pressure limiting device and fuel system with such a pressure limiting device |
| US20050051218A1 (en) * | 2003-01-17 | 2005-03-10 | Kenzo Oba | Relief valve |
| CN201236983Y (en) * | 2008-01-18 | 2009-05-13 | 上海裕歆电器有限公司 | Overflow valve of high-pressure pump |
| CN201891882U (en) * | 2010-10-12 | 2011-07-06 | 杭州春江阀门有限公司 | Adjustable pressure relief and pressure holding valve |
| CN202834242U (en) * | 2012-10-31 | 2013-03-27 | 镇江宝城注浆设备有限公司 | Grouting pump safe valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130327 |