CN202834242U - Grouting pump safe valve - Google Patents
Grouting pump safe valve Download PDFInfo
- Publication number
- CN202834242U CN202834242U CN 201220567196 CN201220567196U CN202834242U CN 202834242 U CN202834242 U CN 202834242U CN 201220567196 CN201220567196 CN 201220567196 CN 201220567196 U CN201220567196 U CN 201220567196U CN 202834242 U CN202834242 U CN 202834242U
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- China
- Prior art keywords
- spring
- valve
- valve core
- room
- pressure
- 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
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Abstract
The utility model relates to the field of a grouting pump, in particular to a grouting pump safe valve. The grouting pump safe valve comprises a valve core, a spring and a valve body, wherein a spring room, a valve core room and a pressure room are sequentially communicated with the interior of the valve body, and the spring is arranged in the spring room. The valve core is arranged in the valve core room, one end of the valve core is connected with the end portion of the spring room in an inserted mode and elastically connected with the spring, and a frustum body is arranged at the other end of the valve core. The frustum body is connected with the end portion of the pressure room in a contacted mode, and the valve body is provided with a pressure hole which is communicated with the pressure room and a grouting discharging hole which is communicated with the valve core room. Enormous pressure in grout can be diffused, function force on the valve core becomes small, and the requirement for rigidity of the spring is not high. The diameter of a valve port can be expanded, hidden danger of blocking of the valve port is removed, and at the same time, a pitch of the spring can be increased. Under the equal function force, a route is lengthened so as to ensure full unloading under the condition that a grouting pipeline is blocked.
Description
Technical field
The utility model 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 utility model purpose 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 utility model can be dissolved 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 the utility model structural representation.
Embodiment
Below in conjunction with Figure of description and specific embodiment the utility model 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 utility model can be dissolved 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 |
|---|---|---|---|
| CN 201220567196 CN202834242U (en) | 2012-10-31 | 2012-10-31 | Grouting pump safe valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220567196 CN202834242U (en) | 2012-10-31 | 2012-10-31 | Grouting pump safe valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202834242U true CN202834242U (en) | 2013-03-27 |
Family
ID=47945951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220567196 Expired - Fee Related CN202834242U (en) | 2012-10-31 | 2012-10-31 | Grouting pump safe valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202834242U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996433A (en) * | 2012-10-31 | 2013-03-27 | 镇江宝城注浆设备有限公司 | Grouting pump safety valve |
| CN104864144A (en) * | 2015-05-07 | 2015-08-26 | 江苏神通阀门股份有限公司 | Self-operated anti-discharge valve |
| CN105465436A (en) * | 2016-01-23 | 2016-04-06 | 王永代 | Grouting pressure-stabilizing valve |
| CN109538793A (en) * | 2018-12-06 | 2019-03-29 | 中信重工机械股份有限公司 | A kind of one-way water stop grouting device for vertical shaft section of jurisdiction |
-
2012
- 2012-10-31 CN CN 201220567196 patent/CN202834242U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996433A (en) * | 2012-10-31 | 2013-03-27 | 镇江宝城注浆设备有限公司 | Grouting pump safety valve |
| CN104864144A (en) * | 2015-05-07 | 2015-08-26 | 江苏神通阀门股份有限公司 | Self-operated anti-discharge valve |
| CN105465436A (en) * | 2016-01-23 | 2016-04-06 | 王永代 | Grouting pressure-stabilizing valve |
| CN109538793A (en) * | 2018-12-06 | 2019-03-29 | 中信重工机械股份有限公司 | A kind of one-way water stop grouting device for vertical shaft section of jurisdiction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20141031 |
|
| EXPY | Termination of patent right or utility model |