CN202834244U - Small-flow direct-acting relief valve - Google Patents
Small-flow direct-acting relief valve Download PDFInfo
- Publication number
- CN202834244U CN202834244U CN 201220412562 CN201220412562U CN202834244U CN 202834244 U CN202834244 U CN 202834244U CN 201220412562 CN201220412562 CN 201220412562 CN 201220412562 U CN201220412562 U CN 201220412562U CN 202834244 U CN202834244 U CN 202834244U
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- valve
- push rod
- valve body
- flow direct
- left end
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Abstract
The utility model relates to the technical field of a relief valve, in particular to a small-flow direct-acting relief valve. The small-flow direct-acting relief valve comprises a valve body, a valve hole, a valve base and a valve core, the valve core is arranged in the valve hole in a sliding mode, the right end of the valve core is connected with an adjusting push rod by a spring, the adjusting push rod is connected with the valve body in a threaded mode, a handle is arranged at the right end of the adjusting rod, and a communicating hole is formed in the valve base. The left end of the valve core blocks the communicating hole under the function of the spring. An oil inlet and an oil outlet are arranged at the bottom of the valve body, the communicating hole is communicated with the oil inlet, and the lateral face of the left end of the valve hole is communicated with the oil outlet. When in use, hydraulic oil enters from the oil inlet and provides a right pressure for the left end of the valve core, when the pressure intensity of the oil inlet is large enough, the pressure overcomes elasticity of the spring, and enables the valve core to move right, the oil inlet is communicated with the oil outlet, and the hydraulic oil drains from the oil outlet, so that the pressure of the oil inlet does not continue to increase. The small-flow direct-acting relief valve is scientific in structure, small in size, and convenient to install and use.
Description
Technical field
The utility model relates to the relief valve technical field, particularly relates to a kind of small flow direct-acting overflow valve.
Background technique
Relief valve is a kind of pressure controlled valve, mainly plays level pressure overflow, voltage stabilizing, system unloaded and safety protection effect in hydraulic equipment.Its working principle is: when system worked, valve closing only had Open valve when system pressure surpasses set pressure; make the hydraulic oil overflow; carry out overload protection, system pressure is no longer increased, the relief valve set pressure can be adjusted by adjusting handle.Existing structure of relief valve is complicated, and volume is larger, uses inconvenience.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, and a kind of small flow direct-acting overflow valve is provided, its scientific structure, and small volume, easy to install and use.
The technological scheme that its technical problem that solves the utility model adopts is: a kind of small flow direct-acting overflow valve, it comprises valve body, valve opening, valve seat, spool, described spool slides and is arranged in the described valve opening, described spool right-hand member is connected with the adjustment push rod by spring, described adjustment push rod is connected with described valve body screw thread, described adjustment push rod right-hand member is provided with handle, described valve seat is provided with intercommunicating pore, described spool left end stops up described intercommunicating pore under the effect of spring, described valve body bottom is provided with filler opening, oil outlet, described intercommunicating pore is communicated with described filler opening, and described valve opening left end side is communicated with described oil outlet.
Described valve body left end is provided with the second filler opening, and described the second filler opening is provided with plug.
Described plug is connected with described valve body screw thread.
Described valve body is provided with handle set, and described adjustment push rod is threaded with described handle set, and described adjustment pushing rod sleeve is connected to positioning boss, hold-doun nut, and described positioning boss is positioned at described handle set left side, and described hold-doun nut is conflicted and connected described handle set right-hand member.
Described adjustment push rod side is provided be used to the seal ring that prevents the oil infiltration.
The beneficial effects of the utility model are: a kind of small flow direct-acting overflow valve, it comprises valve body, valve opening, valve seat, spool, described spool slides and is arranged in the described valve opening, described spool right-hand member is connected with the adjustment push rod by spring, described adjustment push rod is connected with described valve body screw thread, described adjustment push rod right-hand member is provided with handle, described valve seat is provided with intercommunicating pore, and described spool left end stops up described intercommunicating pore under the effect of spring, and described valve body bottom is provided with filler opening, oil outlet, described intercommunicating pore is communicated with described filler opening, described valve opening left end side is communicated with described oil outlet, and during use, hydraulic oil enters from filler opening, provide a pressure to the right to the spool left end, when the pressure of filler opening was enough large, this pressure overcame the elastic force of spring, and spool is moved right, filler opening is communicated with oil outlet, hydraulic oil releases from oil outlet, thereby makes the pressure of filler opening no longer continue to increase the utility model scientific structure, small volume, easy to install and use.
Description of drawings
Fig. 1 is the structural representation of small flow direct-acting overflow valve of the present utility model.
Description of reference numerals:
1---valve body 11---filler opening
12---oil outlets 13---the second filler opening
14---plug 15---handle set
2---valve opening 3---valve seat
4---spool 5---spring
6---adjusting push rod 61---handle
62---hold-doun nut 63---seal ring.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model being described in further detail, is not that practical range of the present utility model is limited to this.
As shown in Figure 1, the small flow direct-acting overflow valve of the present embodiment, comprise valve body 1, valve opening 2, valve seat 3, spool 4, described spool 4 slides and is arranged in the described valve opening 2, described spool 4 right-hand members are connected with adjustment push rod 6 by spring 5, described adjustment push rod 6 is threaded with described valve body 1, described adjustment push rod 6 right-hand members are provided with handle 61, described valve seat 3 is provided with intercommunicating pore, described spool 4 left ends stop up described intercommunicating pore under the effect of spring 5, described valve body 1 bottom is provided with filler opening 11, oil outlet 12, described intercommunicating pore is communicated with described filler opening 11, and described valve opening 2 left end side are communicated with described oil outlet 12.During use, hydraulic oil enters from filler opening 11, provide a pressure to the right to spool 4 left ends, when the pressure of filler opening 11 is enough large, this pressure overcomes the elastic force of spring 5, spool 4 is moved right, and filler opening 11 is communicated with oil outlet 12, and hydraulic oil releases from oil outlet 12, thereby the pressure that makes filler opening 11 no longer continues to increase, can adjust push rod 6 by rotation, the initial pressure of Regulation spring 5, thus the regulator solution force feed overcomes the needed pressure of the elastic force of spring 5, easy to adjust, the utility model scientific structure, small volume, easy to install and use.
Further, described valve body 1 left end is provided with the second filler opening 13, can select hydraulic oil to enter from one of filler opening 11 or second filler opening 13, and when hydraulic oil entered from filler opening 11, the second filler opening 13 was provided with plug 14.
Further, described plug 14 is threaded with described valve body 1.
Further, described valve body 1 is provided with handle set 15, and described adjustment push rod 6 is threaded with described handle set 15, and described adjustment push rod 6 is socketed with positioning boss, hold-doun nut 62, described positioning boss is positioned at described handle set 15 left ends, described hold-doun nut 62 is conflicted and is connected described handle set 15 right-hand members, during adjustment, unclamps first hold-doun nut 62, rotatable handle 61 again, thereby regulate the position of adjusting push rod 6, after adjustment was finished, nut 62 again was tightened.
Further, described adjustment push rod 6 sides are provided be used to the seal ring 63 that prevents the oil infiltration, and seal ring 63 prevents hydraulic fluid leak, pollutes and wastes.
Should be noted that at last; above embodiment is only in order to illustrate the technical solution of the utility model; but not to the restriction of the utility model protection domain; although with reference to preferred embodiment the utility model has been done to explain; those of ordinary skill in the art is to be understood that; can make amendment or be equal to replacement the technical solution of the utility model, and not break away from essence and the scope of technical solutions of the utility model.
Claims (5)
1. small flow direct-acting overflow valve, it is characterized in that: comprise valve body, valve opening, valve seat, spool, described spool slides and is arranged in the described valve opening, described spool right-hand member is connected with the adjustment push rod by spring, described adjustment push rod is connected with described valve body screw thread, described adjustment push rod right-hand member is provided with handle, described valve seat is provided with intercommunicating pore, described spool left end stops up described intercommunicating pore under the effect of spring, described valve body bottom is provided with filler opening, oil outlet, described intercommunicating pore is communicated with described filler opening, and described valve opening left end side is communicated with described oil outlet.
2. small flow direct-acting overflow valve according to claim 1, it is characterized in that: described valve body left end is provided with the second filler opening, and described the second filler opening is provided with plug.
3. small flow direct-acting overflow valve according to claim 2, it is characterized in that: described plug is connected with described valve body screw thread.
4. small flow direct-acting overflow valve according to claim 1, it is characterized in that: described valve body is provided with handle set, described adjustment push rod is threaded with described handle set, described adjustment pushing rod sleeve is connected to positioning boss, hold-doun nut, described positioning boss is positioned at described handle set left side, and described hold-doun nut is conflicted and connected described handle set right-hand member.
5. small flow direct-acting overflow valve according to claim 4 is characterized in that: described adjustment push rod side is provided be used to the seal ring that prevents the oil infiltration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220412562 CN202834244U (en) | 2012-08-20 | 2012-08-20 | Small-flow direct-acting relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220412562 CN202834244U (en) | 2012-08-20 | 2012-08-20 | Small-flow direct-acting relief valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202834244U true CN202834244U (en) | 2013-03-27 |
Family
ID=47945953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220412562 Expired - Fee Related CN202834244U (en) | 2012-08-20 | 2012-08-20 | Small-flow direct-acting relief valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202834244U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106090362A (en) * | 2016-08-11 | 2016-11-09 | 中国海洋大学 | A kind of direct-acting overflow valve |
| CN108692080A (en) * | 2017-04-10 | 2018-10-23 | 朱艳青 | It is a kind of to control quantitative fuel-displaced valve body structure |
-
2012
- 2012-08-20 CN CN 201220412562 patent/CN202834244U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106090362A (en) * | 2016-08-11 | 2016-11-09 | 中国海洋大学 | A kind of direct-acting overflow valve |
| CN106090362B (en) * | 2016-08-11 | 2018-03-23 | 中国海洋大学 | A kind of direct-acting overflow valve |
| CN108692080A (en) * | 2017-04-10 | 2018-10-23 | 朱艳青 | It is a kind of to control quantitative fuel-displaced valve body structure |
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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: 20140820 |
|
| EXPY | Termination of patent right or utility model |