CN204785003U - Manual proportion of screw -in cartridge formula switching -over valve - Google Patents
Manual proportion of screw -in cartridge formula switching -over valve Download PDFInfo
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- CN204785003U CN204785003U CN201520459169.3U CN201520459169U CN204785003U CN 204785003 U CN204785003 U CN 204785003U CN 201520459169 U CN201520459169 U CN 201520459169U CN 204785003 U CN204785003 U CN 204785003U
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- fixed
- transmission shaft
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- knob
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Abstract
Manual proportion of screw -in cartridge formula switching -over valve, including the handle, the transmission shaft, the handle through and the cap connect and be fixed in the transmission shaft, still including stop device and locking device, stop device by last spacing, down spacing and protective sheath form, the recess that becomes of last spacing and lower limit configuration match with transfer line boss, locking device include spring, locking case, seal receptacle, valve head assembly, the valve head assembly on be fixed with the nut, the nut have the knob through threaded connection, knob and locking case threaded connection to it is fixed by the holding pin. Compared with the prior art, the utility model discloses stop device has been increased, ability effective control maximum flow, locking device has been improved, effectively prevent misuse to effectively prevent the emergence to maintenance personal's injury accident.
Description
Technical field
The utility model relates to hydraulic control executive component, relates in particular to the manual proportional reversing valve of screw thread inserting type.
Background technique
Hand-operated direction valve is the selector valve that a kind of hand carrys out control flow check port, and its feature does not need power control part, and the work field boundary being suitable for hand-guided commutation closes.But the location of common hand-operated direction valve relies on spring to add steel ball to realize, and its feature is that reliability of positioning is poor, and handle can produce commutation when running into unexpected External Force Acting, causes the misoperation of valve, thus produces safety problem.
The patent No. is a kind of hand-operated direction valve with self-locking device disclosed in 201420031247.5, by by hand axle and hinge axis hinged, and a positioning block is set, makes hand lever by hinging shaft rotary clamping in the locating slot of positioning block, thus complete locking.Although it solves the lockout issue of hand-operated direction valve to a certain extent, its poor accuracy, can not control peak rate of flow.
Summary of the invention
The purpose of this utility model is to provide a kind of peak rate of flow that can control, the manual proportional reversing valve of screw thread inserting type that structure is simple, esy to use, safe and reliable.
The utility model realizes like this, the manual proportional reversing valve of screw thread inserting type, comprise handle, transmission shaft, handle by and cap be connected and fixed on transmission shaft, also include limit stoper and locking device, described limit stoper is made up of upper limit, lower limit and protecting jacket, and the groove that described upper limit and lower limit are formed matches with drive link boss; Described locking device comprises spring, locking spool, sealing seat, valve head assembly, and described valve head assembly is fixed with nut, and described nut has been threaded connection knob, and described knob is threaded with locking spool, and is fixed by fixed pin.
Described locking spool is provided with pin; Described nut is provided with " L " shape groove coordinated with pin.
Described locking spool 12 lower end is provided with the projection matched with shaft gear groove.
Described locking spool 12 is by the forging of alloy steel products one.
Compared with prior art the utility model adds limit stoper, effectively can control peak rate of flow; Improve locking device, effectively can prevent misoperation, thus effectively prevent the generation to maintenance man's injury accident.Simultaneously because the utility model main working parts is arranged on valve inner, owing to there being the isolated of hydraulic oil, can not corrosion be produced, safe and reliable.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
In figure 1, handle, 2 and cap, 3, protecting jacket, 4, upper limit, 5, lower limit, 6, drive link, 7, knob, 8, fixed pin, 9, nut, 10 pins, 11, spring, 12, locking spool, 13, sealing seat, 14, transmission shaft, 15, valve head assembly.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further:
The manual proportional reversing valve of screw thread inserting type, comprise handle 1, valve head assembly 15, handle 1 passes through and cap 2 is connected and fixed on transmission shaft 14, also include limit stoper and locking device, described limit stoper is made up of upper limit 4, lower limit 5 and protecting jacket 3, and the groove that described upper limit 4 is formed with lower limit 5 matches with drive link boss; Described valve head assembly 15 is fixed with nut 9, and described nut 9 has been threaded connection knob 7, and described knob 7 is threaded with locking spool 12, and is fixed by fixed pin 8.
Described locking spool is provided with pin 10; Described nut 9 is provided with " L " shape groove coordinated with pin 10; Described locking spool 12 is by the forging of alloy steel products one; Described locking spool 12 lower end is provided with the projection matched with transmission shaft 14 gear grooved; Described transmission shaft 14 is provided with gear, described drive link is provided with the tooth bar be meshed with transmission shaft 14 gear.
During concrete enforcement, turn clockwise knob 7, drives locking spool 12 to move downward, thus sticked into inside the gear grooved of transmission shaft 14 by locking spool 12, prevent transmission shaft 14 from rotating; Complete locking.When needs work, be rotated counterclockwise knob 7, then knob 7 is held, the elastic pulling force overcoming spring 11 drives the pin 10 on lock valve core 12 up to move radially along " the L groove " of nut 9, and rotate 90 degree when arriving bottom nut 9, described pin 10 axial-rotation snaps in nut L-type groove bottom, locking spool 12 no longer moves down, now, locking spool 12 is thrown off with transmission shaft 14, and handle 1 can drive transmission shaft 14 to rotate.Transmission shaft 14 drives drive link 6 straight line motion, and when drive link 16 moves to topmost, the projection of drive link 16 just snaps in the groove be made up of upper limit 4 and lower limit 5, thus completes spacing.
Claims (4)
1. the manual proportional reversing valve of screw thread inserting type, comprise handle (1), transmission shaft (14), handle (1) passes through and cap (2) is connected and fixed on transmission shaft (14), it is characterized in that: also include limit stoper and locking device, described limit stoper is made up of upper limit (4), lower limit (5) and protecting jacket (3), and the groove that described upper limit (4) and lower limit (5) are formed matches with drive link boss; Described locking device comprises spring (11), locking spool (12), sealing seat (13), valve head assembly (15), described valve head assembly (15) is fixed with nut (9), described nut (9) has been threaded connection knob (7), described knob (7) is threaded with locking spool (12), and is fixed by fixed pin (8).
2. the manual proportional reversing valve of screw thread inserting type according to claim 1, is characterized in that: described locking spool is provided with pin (10); Described nut (9) is provided with " L " shape groove coordinated with pin (10).
3. the manual proportional reversing valve of screw thread inserting type according to claim 1, is characterized in that: described locking spool (12) lower end is provided with the projection matched with transmission shaft (14) gear grooved.
4. the manual proportional reversing valve of screw thread inserting type according to claim 1, is characterized in that: described locking spool (12) is by the forging of alloy steel products one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520459169.3U CN204785003U (en) | 2015-07-01 | 2015-07-01 | Manual proportion of screw -in cartridge formula switching -over valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520459169.3U CN204785003U (en) | 2015-07-01 | 2015-07-01 | Manual proportion of screw -in cartridge formula switching -over valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204785003U true CN204785003U (en) | 2015-11-18 |
Family
ID=54525052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520459169.3U Active CN204785003U (en) | 2015-07-01 | 2015-07-01 | Manual proportion of screw -in cartridge formula switching -over valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204785003U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104964087A (en) * | 2015-07-01 | 2015-10-07 | 靖江市菲尔特液压机械有限公司 | Threaded cartridge type manual proportional reversing valve |
-
2015
- 2015-07-01 CN CN201520459169.3U patent/CN204785003U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104964087A (en) * | 2015-07-01 | 2015-10-07 | 靖江市菲尔特液压机械有限公司 | Threaded cartridge type manual proportional reversing valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |