CN204783916U - Voltage limiting valve - Google Patents
Voltage limiting valve Download PDFInfo
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- CN204783916U CN204783916U CN201520506783.0U CN201520506783U CN204783916U CN 204783916 U CN204783916 U CN 204783916U CN 201520506783 U CN201520506783 U CN 201520506783U CN 204783916 U CN204783916 U CN 204783916U
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Abstract
The utility model provides a voltage limiting valve, belongs to machinery, have for solving present voltage limiting valve that structure complicacy, processing expect much, the volume and the difficult shortcoming of installation, this voltage limiting valve includes valve body 1, valve body 1 is " T " font, and the inside pipeline that is " T " font together that is equipped with of valve body, " T " venturi tube say that "|" font part of lower part divide into two parts of diameter variation in size, as required the utility model discloses voltage limiting valve can assemble at pump body oil -out for adjustment oil pressure and protection system, this voltage limiting valve simple structure, processing requires lowly, and is small, the installation of being convenient for.
Description
Technical field
The invention belongs to mechanical field, relate to valve type, particularly a kind of pressure-limit valve.
Background technique
Pressure-limit valve is used in the public part in hydraulic system usually, and after oil pump input oil pressure reaches requirement pressure or oil cylinder stroke puts in place, oil pressure raises, and pressure-limit valve starts to work, unloading oil pressure.Pressure-limit valve in water route is identical with the effect of the pressure-limit valve in oil circuit.
Current pressure-limit valve exists that complex structure, processing request are high, volume compared with and the shortcoming of installing not easily.
Summary of the invention
In order to solve the pressure-limit valve Problems existing described in background technique, the invention provides a kind of pressure-limit valve.
The present invention's adopted technological scheme that solves the problem is as follows: a kind of pressure-limit valve, described pressure-limit valve comprises valve body, be arranged on the valve core cap of valve inner, be arranged on the clamping cap on valve body, be arranged on the compression axis that valve inner coordinates with clamping cap, two ends connect the spring of valve core cap and compression axis respectively, be arranged on the superpressure drain tap on the valve body of compression axis between valve core cap, described valve body is " T " font, valve body 1 inside is provided with the pipeline being all " T " font, two-part that " ︱ " glyph part of "T"-shaped pipeline bottom is divided into diameter different, valve core cap props up the little part of " ︱ " glyph part diameter of "T"-shaped pipeline bottom, wherein, the part that on valve body, pipe diameter is large is provided with the first internal thread away from one end of diameter fraction, the part that on valve body, pipe diameter is little is connected with the middle part of " T " font top " one " glyph part away from one end of the large part of diameter, one end of " T " font top " one " glyph part internal pipeline is provided with internal thread, the other end interior smooth of internal pipeline, one end that " T " font top " one " glyph part internal pipeline is smooth is provided with outside thread.
Described internal thread is identical with externally threaded diameter, i.e. " T " font top " one " glyph part two parts being divided into diameter different, and the partial interior pipeline that diameter is large is provided with internal thread, and diameter is little that portion of external be provided with outside thread.Described valve core cap is column, the equal diameters of the diameter of valve core cap and the large part of " ︱ " font diameter of "T"-shaped pipeline bottom.An end face of described valve core cap is provided with cylindrical protrusion, the diameter of cylindrical protrusion is less than the diameter of valve core cap, another end face of valve core cap is provided with conical recess, the tapering of conical recess is 30 degree, the maximum diameter of conical recess is less than the diameter of cylindrical protrusion, is greater than the diameter of the little part of " ︱ " font diameter of "T"-shaped pipeline bottom.One end end face that described valve core cap is provided with conical recess points to the little part of " ︱ " font diameter of "T"-shaped pipeline bottom and the dead in line of the little part of " ︱ " font diameter of the axis of conical recess and "T"-shaped pipeline bottom.Be provided with steel ball in described conical recess, the diameter that the diameter of steel ball is greater than the little part of " ︱ " font diameter of "T"-shaped pipeline bottom is less than the maximum diameter of conical recess, and cylindrical protrusion is provided with spring.Described clamping cap is arranged on the first internal thread, the part that on "T"-shaped clamping cap, diameter is little is provided with the first outside thread, first outside thread and the first internal thread engage each other, compression axis is through clamping cap and the spring contact be arranged in cylindrical protrusion, and the moieties into close that compression axis makes the steel ball on valve core cap little with " ︱ " font diameter of "T"-shaped pipeline bottom by extrusion spring contacts.The described compression stretching part gone out outside valve body is provided with the second outside thread, and the second outside thread is provided with adjusting nut.
The invention has the beneficial effects as follows: pressure-limit valve of the present invention can be assemblied in pump housing oil outlet as required, for adjusting oil pressure and protective system, this pressure limiting valve structure is simple, and processing request is low, and volume is little, is convenient to install.
Accompanying drawing explanation
Fig. 1 is pressure limiting valve structure sectional drawing of the present invention;
Wherein, 1-valve body, 2-steel ball, 3-valve core cap, 4-spring, 5-compression axis, 6-clamping cap, 7-adjusting nut, 8-superpressure drain tap.
Embodiment
Contrast accompanying drawing below, by the description to embodiment, the specific embodiment of the present invention is as the effect of the mutual alignment between the shape of involved each component, structure, each several part and annexation, each several part and working principle, manufacturing process and operation using method etc., be described in further detail, have more complete, accurate and deep understanding to help those skilled in the art to inventive concept of the present invention, technological scheme.
A kind of pressure-limit valve, comprise valve body 1, described valve body 1 is " T " font, valve body 1 inside is provided with the pipeline being all " T " font, two-part that " ︱ " glyph part of "T"-shaped pipeline bottom is divided into diameter different, wherein, the part that on valve body 1, pipe diameter is large is provided with the first internal thread away from one end of diameter fraction, in order to the pressure in valve body 1 during removal superpressure, the sidewall of the part that diameter is large is also provided with superpressure drain tap (8).The part that on valve body 1, pipe diameter is little is connected with the middle part of " T " font top " one " glyph part away from one end of the large part of diameter.In order to pressure-limit valve is installed in oil circuit, one end of " T " font top " one " glyph part internal pipeline is provided with internal thread, the other end interior smooth of internal pipeline, one end that " T " font top " one " glyph part internal pipeline is smooth is provided with outside thread, internal thread is identical with externally threaded diameter, i.e. " T " font top " one " glyph part two parts being divided into diameter different, the partial interior pipeline that diameter is large is provided with internal thread, and diameter is little that portion of external be provided with outside thread.
Valve core cap 3 is provided with in the part that " ︱ " font diameter of the inner "T"-shaped pipeline bottom of valve body 1 is large, described valve core cap 3 is column, the equal diameters of the diameter of valve core cap 3 and the large part of " ︱ " font diameter of "T"-shaped pipeline bottom, an end face of valve core cap 3 is provided with cylindrical protrusion, the diameter of cylindrical protrusion is less than the diameter of valve core cap 3, another end face of valve core cap 3 is provided with conical recess, the tapering of conical recess is 30 degree, the maximum diameter of conical recess is less than the diameter of cylindrical protrusion, be greater than the diameter of the little part of " ︱ " font diameter of "T"-shaped pipeline bottom.One end end face that valve core cap 3 is provided with conical recess points to the little part of " ︱ " font diameter of "T"-shaped pipeline bottom and the dead in line of the little part of " ︱ " font diameter of the axis of conical recess and "T"-shaped pipeline bottom.Be provided with steel ball 2 in conical recess, the diameter that the diameter of steel ball 2 is greater than the little part of " ︱ " font diameter of "T"-shaped pipeline bottom is less than the maximum diameter of conical recess.Cylindrical protrusion is provided with spring 4.
First internal thread is provided with "T"-shaped clamping cap 6, and the part that on "T"-shaped clamping cap 6, diameter is little is provided with the first outside thread, and the first outside thread and the first internal thread engage each other.Compression axis 5 is also provided with in valve body 1, compression axis 5 contacts with the spring 4 be arranged in cylindrical protrusion through clamping cap 6, and the moieties into close that compression axis 5 makes the steel ball 2 on valve core cap 3 little with " ︱ " font diameter of "T"-shaped pipeline bottom by extrusion spring 4 contacts.Described superpressure drain tap (8) is arranged on the valve body 1 of compression axis 5 between valve core cap 3.
In order to adjust the dynamics of compression axis 5 extrusion spring 4, described compression is taken out 5 parts of stretching out outside valve body 1 and is provided with the second outside thread, and the second outside thread is provided with adjusting nut 7.
Above by reference to the accompanying drawings to invention has been exemplary description; obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present invention is conceived and technological scheme is carried out; or design of the present invention and technological scheme directly applied to other occasion, all within protection scope of the present invention without to improve.The protection domain that protection scope of the present invention should limit with claims is as the criterion.
Claims (8)
1. a pressure-limit valve, it is characterized in that: described pressure-limit valve comprises valve body (1), be arranged on the valve core cap (3) of valve body 1 inside, be arranged on the clamping cap (6) on valve body (1), be arranged on the compression axis (5) that valve body 1 inside coordinates with clamping cap (6), two ends connect the spring (4) of valve core cap (3) and compression axis (5) respectively, be arranged on the superpressure drain tap (8) on the valve body (1) of compression axis (5) between valve core cap (3), described valve body (1) is " T " font, valve body (1) inside is provided with the pipeline being all " T " font, two-part that " ︱ " glyph part of "T"-shaped pipeline bottom is divided into diameter different, valve core cap (3) props up the little part of " ︱ " glyph part diameter of "T"-shaped pipeline bottom, wherein, valve body (1) part that above pipe diameter is large is provided with the first internal thread away from one end of diameter fraction, the little part of the upper pipe diameter of valve body (1) is connected with the middle part of " T " font top " one " glyph part away from one end of the large part of diameter, one end of " T " font top " one " glyph part internal pipeline is provided with internal thread, the other end interior smooth of internal pipeline, one end that " T " font top " one " glyph part internal pipeline is smooth is provided with outside thread.
2. pressure-limit valve according to claim 1, it is characterized in that: described internal thread is identical with externally threaded diameter, i.e. " T " font top " one " glyph part two parts being divided into diameter different, the partial interior pipeline that diameter is large is provided with internal thread, and diameter is little that portion of external is provided with outside thread.
3. pressure-limit valve according to claim 1, is characterized in that: described valve core cap (3) is column, the equal diameters of the diameter of valve core cap (3) and the large part of " ︱ " font diameter of "T"-shaped pipeline bottom.
4. pressure-limit valve according to claim 3, it is characterized in that: an end face of described valve core cap (3) is provided with cylindrical protrusion, the diameter of cylindrical protrusion is less than the diameter of valve core cap (3), another end face of valve core cap (3) is provided with conical recess, the tapering of conical recess is 30 degree, the maximum diameter of conical recess is less than the diameter of cylindrical protrusion, is greater than the diameter of the little part of " ︱ " font diameter of "T"-shaped pipeline bottom.
5. pressure-limit valve according to claim 4, is characterized in that: one end end face that described valve core cap (3) is provided with conical recess points to the little part of " ︱ " font diameter of "T"-shaped pipeline bottom and the dead in line of the little part of " ︱ " font diameter of the axis of conical recess and "T"-shaped pipeline bottom.
6. pressure-limit valve according to claim 5, it is characterized in that: in described conical recess, be provided with steel ball 2, the diameter that the diameter of steel ball (2) is greater than the little part of " ︱ " font diameter of "T"-shaped pipeline bottom is less than the maximum diameter of conical recess, and cylindrical protrusion is provided with spring (4).
7. pressure-limit valve according to claim 1-6 any one, it is characterized in that: described clamping cap (6) is arranged on the first internal thread, the part that the upper diameter of "T"-shaped clamping cap (6) is little is provided with the first outside thread, first outside thread and the first internal thread engage each other, compression axis (5) contacts with the spring be arranged in cylindrical protrusion (4) through clamping cap (6), and the moieties into close that compression axis (5) makes the steel ball (2) on valve core cap (3) little with " ︱ " font diameter of "T"-shaped pipeline bottom by extrusion spring (4) contacts.
8. pressure-limit valve according to claim 1-6 any one, is characterized in that: described compression is taken out (5) and stretched out valve body (1) part outward and be provided with the second outside thread, and the second outside thread is provided with adjusting nut (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520506783.0U CN204783916U (en) | 2015-07-14 | 2015-07-14 | Voltage limiting valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520506783.0U CN204783916U (en) | 2015-07-14 | 2015-07-14 | Voltage limiting valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204783916U true CN204783916U (en) | 2015-11-18 |
Family
ID=54523972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520506783.0U Expired - Fee Related CN204783916U (en) | 2015-07-14 | 2015-07-14 | Voltage limiting valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204783916U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840841A (en) * | 2016-05-09 | 2016-08-10 | 贵州大学 | Multifunctional hydraulic combination valve |
-
2015
- 2015-07-14 CN CN201520506783.0U patent/CN204783916U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840841A (en) * | 2016-05-09 | 2016-08-10 | 贵州大学 | Multifunctional hydraulic combination valve |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151118 Termination date: 20160714 |