CN101936422B - Positioning and resetting structure of hand-operated direction valve - Google Patents
Positioning and resetting structure of hand-operated direction valve Download PDFInfo
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- CN101936422B CN101936422B CN 201010264428 CN201010264428A CN101936422B CN 101936422 B CN101936422 B CN 101936422B CN 201010264428 CN201010264428 CN 201010264428 CN 201010264428 A CN201010264428 A CN 201010264428A CN 101936422 B CN101936422 B CN 101936422B
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Abstract
The invention discloses a positioning and resetting structure of a hand-operated direction valve comprising a hand-operated direction mechanism, a valve body, a valve core, a rear end cover, a rear cover and a positioning and resetting mechanism, wherein the positioning and resetting mechanism comprises a return spring, two spring seats, a positioning spring, a pressure pad, a positioning ball group and a positioning sleeve; the left spring seat and the right spring seat are both sheathed on the valve core and can axially slide along the peripheral surface of the valve core; the positioning spring and the positioning ball group are arranged in the cavity of the valve core; the positioning sleeve is arranged in the cavity formed by the rear cover and can slide in the cavity; and the inner peripheral surface of the positioning sleeve is provided with an annular step. The invention is especially suitable for the hand-operated direction valve and has the advantages that the direction valve has both positioning function and automatic resetting function and has convenient operation, good operation hand feel, low transformation cost, easy realization and the like.
Description
Technical field
The present invention relates to a kind of location resetting structure, especially a kind of location resetting structure that is used for hand-operated direction valve.
Background technique
Hand-operated direction valve be a kind of in hydraulic system widely used hydraulic element, be mainly used in MEDIA FLOW to switching.Hand-operated direction valve generally all comprises following component: manual reverse of direction mechanism, Sealing, valve body, spool, resetting-mechanism or positioning means.Resetting-mechanism is used for after selector valve is carried out the switching-over action, making spool get back to initial bit.Positioning means is used for after selector valve is carried out the switching-over action, makes selector valve be fixed in certain working state confirmed or work gear.In prior art, hand-operated direction valve only is provided with spring reset mechanism or only is provided with positioning means.Hand-operated direction valve among Fig. 1 a comprises manual reverse of direction mechanism 1, Sealing 2, valve body 3, spool 4, spring reset mechanism 5, and spring reset mechanism 5 comprises left spring seat 19, right spring seat 20 and Returnning spring 10; In this selector valve, the staff decontrols manual reverse of direction mechanism behind manual reverse of direction, and spool automatically reverts to the home position under the effect of spring reset mechanism, has the problem that can't realize the spool location.Hand-operated direction valve among Fig. 1 b comprises manual reverse of direction mechanism 1, Sealing 2, valve body 3, spool 4, steel ball positioning means 6, and steel ball positioning means 6 comprises locking ball 11, locating column 13; In this selector valve, locating column 13 is provided with three road annular grooves, and this selector valve can switch on the gears three work, but since during the location locking ball be stuck in the annular groove, when the staff decontroled manual reverse of direction mechanism, spring can't make spool be returned to the home position; This selector valve can be realized the locating function of spool on the different operating gear, can't automatically reset problem but have.
Summary of the invention
The present invention is the deficiency that exists in the above-mentioned prior art for avoiding, and a kind of location resetting structure of hand-operated direction valve is provided, so that selector valve has locating function and auto-reset function concurrently.
The present invention adopts following technological scheme for the technical solution problem.
The location resetting structure of hand-operated direction valve; Hand-operated direction valve comprises manual reverse of direction mechanism, valve body, spool, rear end cover, bonnet and location resetting-mechanism; The left part of spool is connected with manual reverse of direction mechanism, and its structural feature is that the right part of spool is set to locate resetting-mechanism; Said location resetting-mechanism is positioned at rear end cover and the formed cavity of bonnet that sets gradually from left to right; Said location resetting-mechanism comprises Returnning spring, spring seat, retaining spring, pressure pad, place kick group and setting sleeve; Spring seat comprises left spring seat and right spring seat, and left spring seat and right spring seat all are sheathed on the spool and can endwisely slip along the spool outer circumferential face, and Returnning spring is located between left spring seat and the right spring seat; Be provided with retaining spring, place kick group in the cavity of establishing in the spool right part from left to right successively; The setting sleeve that is sheathed on the spool right part is positioned at the cavity that bonnet forms and also can slides at this cavity, and the inner peripheral surface of setting sleeve is provided with ring-shaped step.
The structural feature of the location resetting structure of hand-operated direction valve of the present invention also is:
The cavity of establishing in the said spool right part is step-like cavity, and the diameter of cavity increases from left to right successively, and retaining spring is located in the minimum cavity part of diameter; The place kick group comprises a big place kick and a plurality of little place kick, and the right-hand member of retaining spring connects with big place kick; Big place kick is positioned at the bigger cavity part of diameter and some extend out to the maximum cavity part of diameter to the right; On the wall of the maximum cavity part of the diameter of spool, be provided with a plurality of circular holes, be provided with a little place kick in each circular hole, the sphere of little place kick is tangent with the sphere of big place kick.
Said pressure pad is sheathed on the spool, and pressure pad is clipped between rear end cover and the bonnet.
Said left spring seat and right spring seat are step-like, also are provided with the step that matches with spring seat on the periphery of the spool part of sheathed spring seat.
The inner peripheral surface of said setting sleeve is provided with the twice ring-shaped step.
Said big place kick and little place kick are steel ball.
Compared with present technology, beneficial effect of the present invention is embodied in:
Among the present invention; Owing to adopt spring seat, Returnning spring as resetting means; Adopt place kick group and the inner setting sleeve that is provided with step as positioning device, make the spool of hand-operated direction valve in certain stroke, have auto-reset function, and have locating function at diverse location; And easy to operate, operating handle is good.Location of the present invention resetting structure is parts such as spring seat, Returnning spring, place kick group and setting sleeve to be set through the spool end at existing hand-operated direction valve realize, and is little to the structural change of selector valve, the low and easy realization of reforming cost.The present invention adopts spring seat, Returnning spring, place kick group, component such as setting sleeve movably, makes selector valve have locating function and auto-reset function concurrently, and have easy to operate, operating handle good, reforming cost is low and advantage such as easy realization.
The present invention is particularly useful for hand-operated direction valve.
Description of drawings
Fig. 1 a is the sectional view that adopts the hand-operated direction valve of spring reset mechanism in the prior art.
Fig. 1 b is the sectional view that adopts the hand-operated direction valve of place kick positioning means in the prior art.
Fig. 2 is the sectional view of spool when meta of hand-operated direction valve of the present invention.
Fig. 3 be manual reverse of direction of the present invention mechanism when spring reset, the spool sectional view when putting in place that commutates left.
Fig. 4 is a manual reverse of direction of the present invention mechanism at spring reset during to the transition of place kick location, the spool sectional view when putting in place that commutates left.
Fig. 5 for manual reverse of direction of the present invention mechanism when place kick is located, the sectional view when spool is positioned at the left side.
Label in accompanying drawing 1a, accompanying drawing 1b, accompanying drawing 2, accompanying drawing 3, accompanying drawing 4, the accompanying drawing 5: 1 manual reverse of direction mechanism, 2 Sealings, 3 valve bodies, 4 spools, 5 spring reset mechanisms; 6 steel ball positioning meanss, 7 location resetting structures, 8 setting sleeves, 9 bonnets, 10 Returnning springs; 11 locking balls, 12 retaining springs, 13 locating columns, 14 pressure pads, 15 big place kick; 16 little place kick, 17 rear end covers, 18 ring-shaped steps, 19 left spring seats, 20 right spring seats.
Below pass through embodiment, and combine accompanying drawing that the present invention is described further.
Embodiment
Referring to Fig. 2, Fig. 3, Fig. 4, Fig. 5; The location resetting structure of hand-operated direction valve; Hand-operated direction valve comprises manual reverse of direction mechanism 1, valve body 3, spool 4, rear end cover 17, bonnet 9 and location resetting-mechanism 7; The left part of spool 4 is connected with manual reverse of direction mechanism 1, it is characterized in that the right part of spool 4 is set to locate resetting-mechanism 7; Said location resetting-mechanism 7 is positioned at the rear end cover 17 and bonnet 9 formed cavitys that sets gradually from left to right; Said location resetting-mechanism 7 comprises Returnning spring 10, spring seat, retaining spring 12, pressure pad 14, place kick group and setting sleeve 8; Spring seat comprises left spring seat 19 and right spring seat 20, and left spring seat 19 all is sheathed on the spool 4 with right spring seat 20 and can endwisely slips along spool 4 outer circumferential faces, and Returnning spring 10 is located between left spring seat 19 and the right spring seat 20; Be provided with retaining spring 12, place kick group in the cavity of establishing in spool 4 right parts from left to right successively; The setting sleeve 8 that is sheathed on spool 4 right parts is positioned at the cavity that bonnet forms and also can slides at this cavity, and the inner peripheral surface of setting sleeve 8 is provided with ring-shaped step 18.The cavity of establishing in said spool 4 right parts is step-like cavity, and the diameter of cavity increases from left to right successively, and retaining spring 12 is located in the minimum cavity part of diameter; The place kick group comprises a big place kick 15 and a plurality of little place kick 16, and the right-hand member of retaining spring 12 connects with big place kick 15; Big place kick 15 is positioned at the bigger cavity part of diameter and some extend out to the maximum cavity part of diameter to the right; On the wall of the maximum cavity part of the diameter of spool 4, be provided with a plurality of circular holes, be provided with a little place kick 16 in each circular hole, the sphere of little place kick 16 is tangent with the sphere of big place kick 15.Said pressure pad 14 is sheathed on the spool 4, and pressure pad 14 is clipped between rear end cover 17 and the bonnet 9.Said left spring seat 19 and right spring seat 20 are step-like, also are provided with the step that matches with spring seat on the periphery of spool 4 parts of sheathed spring seat.The inner peripheral surface of said setting sleeve 8 is provided with twice ring-shaped step 18.Said big place kick 15 is steel ball with little place kick 16.
Among Fig. 2, spool 4 is in meta, promptly remains static, and this moment, Returnning spring and retaining spring all were in original state.
As shown in Figure 3, when manual reverse of direction mechanism 1 manipulation spool 4 was pulled out left, spool 4 drove right spring seat 20 and is moved to the left together with locating column 13 and big or small place kick.Setting sleeve 8 is slidably in bonnet 9 the insides, has only after setting sleeve 8 abuts to pressure pad 14 and just can not move again.After the little place kick 16 in the locating column 13 arrived to the ring-shaped step 18 in setting sleeve 8 left sides, drive setting sleeve 8 was moved to the left until setting sleeve and abuts to pressure pad 14.Because stopping of ring-shaped step 18, at this moment little place kick 16 can't drive setting sleeve 8 again and continue to slide, and manual reverse of direction mechanism receives certain resistance, and at this moment manually switching-over left puts in place.After this operation has two kinds of situation:
If 1 at this moment the staff unclamp manual reverse of direction mechanism 1, spool 4 can be got back to meta automatically under the active force of Returnning spring 10.
If 2 at this moment the staff continue firmly to spur spool 4 left, the little place kick 16 of spool 4 drives is moved to the left, after little place kick 16 receives the extruding of ring-shaped step 18 in setting sleeve 8 left sides; Little place kick 16 will be pushed big place kick 15; Big place kick 15 compression set springs 12, at this moment little place kick 16 are with regard to the retraction circular hole, and spool 4 drives little place kick 16 and crosses ring-shaped step 18; Then little place kick 16 is under the effect of retaining spring 12; Again eject circular hole and be connected on the left side one side of ring-shaped step 18, then right spring seat 20 will connect with left spring seat 19 if continue to spur spool 4 left this moment; Spool 4 can't continue to be moved to the left again, and promptly spool 4 is in the limit position (as shown in Figure 4) of high order end.If the staff unclamps manual reverse of direction mechanism 1 at this moment; Right spring seat 20 is under the effect of Returnning spring 10; Drive spool 4, place kick group and setting sleeve 8 and move right together, arrive on the bonnet 9 up to setting sleeve 8, little place kick 16 simultaneously is connected on the left side one side of ring-shaped step 18.Because the resistance of 18 pairs of little place kick 16 of ring-shaped step is greater than the thrust of Returnning spring 10, thereby little place kick 16 can't cross the ring-shaped step 18 of setting sleeve 8 automatically, and this moment, spool 4 was fixed on the position of switching-over left (as shown in Figure 5).If make spool 4 return to meta, need the staff to apply external force in manual reverse of direction mechanism 1, make little place kick 16 cross ring-shaped step 18 to the right, spool 4 could return to meta shown in Figure 2 under the effect of Returnning spring 10 then.
When manual reverse of direction mechanism 1 manipulation spool 4 advances to the right, can realize the location that spool 4 commutates to the right, the course of action of each parts is similar to switching-over left.
Among the present invention; Owing to adopt spring seat, Returnning spring as resetting means; Adopt place kick group and the inner setting sleeve that is provided with step as positioning device, make the spool of hand-operated direction valve in certain stroke, have auto-reset function, and have locating function at diverse location; And easy to operate, operating handle is good.Location of the present invention resetting structure is parts such as spring seat, Returnning spring, place kick group and setting sleeve to be set through the spool end at existing hand-operated direction valve realize, and is little to the structural change of selector valve, the low and easy realization of reforming cost.The present invention adopts spring seat, Returnning spring, place kick group, component such as setting sleeve movably, makes selector valve have locating function and auto-reset function concurrently, and have easy to operate, operating handle good, reforming cost is low and advantage such as easy realization.
The present invention is particularly useful for hand-operated direction valve.
Claims (5)
1. the location resetting structure of hand-operated direction valve; Hand-operated direction valve comprises manual reverse of direction mechanism (1), valve body (3), spool (4), rear end cover (17), bonnet (9) and location resetting structure (7); The left part of spool (4) is connected with manual reverse of direction mechanism (1), it is characterized in that the right part of spool (4) is set to locate resetting structure (7); Said location resetting structure (7) is positioned at rear end cover (17) and the formed cavity of bonnet (9) that sets gradually from left to right; Said location resetting structure (7) comprises Returnning spring (10), spring seat, retaining spring (12), pressure pad (14), place kick group and setting sleeve (8); Spring seat comprises left spring seat (19) and right spring seat (20), and left spring seat (19) and right spring seat (20) all are sheathed on the spool (4) and can endwisely slip along spool (4) outer circumferential face, and Returnning spring (10) is located between left spring seat (19) and the right spring seat (20); Be provided with retaining spring (12), place kick group from left to right successively in the cavity of establishing in spool (4) right part; The setting sleeve (8) that is sheathed on spool (4) right part is positioned at the cavity that bonnet forms and also can slides at this cavity, and the inner peripheral surface of setting sleeve (8) is provided with ring-shaped step (18);
The cavity of establishing in said spool (4) right part is step-like cavity, and the diameter of cavity increases from left to right successively, and retaining spring (12) is located in the minimum cavity part of diameter; The place kick group comprises a big place kick (15) and a plurality of little place kick (16), and the right-hand member of retaining spring (12) connects with big place kick (15); Big place kick (15) is positioned at the bigger cavity part of diameter and some extend out to the maximum cavity part of diameter to the right; On the wall of the maximum cavity part of the diameter of spool (4), be provided with a plurality of circular holes, be provided with a little place kick (16) in each circular hole, the sphere of little place kick (16) is tangent with the sphere of big place kick (15).
2. the location resetting structure of hand-operated direction valve according to claim 1 it is characterized in that said pressure pad (14) is sheathed on the spool (4), and pressure pad (14) is clipped between rear end cover (17) and the bonnet (9).
3. the location resetting structure of hand-operated direction valve according to claim 1, it is step-like to it is characterized in that said left spring seat (19) and right spring seat (20) are, and also is provided with the step that matches with spring seat on the periphery of the spool of sheathed spring seat (4) part.
4. the location resetting structure of hand-operated direction valve according to claim 1 is characterized in that the inner peripheral surface of said setting sleeve (8) is provided with twice ring-shaped step (18).
5. the location resetting structure of hand-operated direction valve according to claim 1 is characterized in that said big place kick (15) and little place kick (16) are steel ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010264428 CN101936422B (en) | 2010-08-19 | 2010-08-19 | Positioning and resetting structure of hand-operated direction valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010264428 CN101936422B (en) | 2010-08-19 | 2010-08-19 | Positioning and resetting structure of hand-operated direction valve |
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| Publication Number | Publication Date |
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| CN101936422A CN101936422A (en) | 2011-01-05 |
| CN101936422B true CN101936422B (en) | 2012-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010264428 Active CN101936422B (en) | 2010-08-19 | 2010-08-19 | Positioning and resetting structure of hand-operated direction valve |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106369185B (en) * | 2016-08-27 | 2019-03-26 | 中国煤炭科工集团太原研究院有限公司 | One kind not only can Self-resetting but also orientable multifunctional manual reversal valve |
| CN106402070B (en) * | 2016-09-13 | 2019-04-09 | 江苏恒立液压科技有限公司 | Spool position reset device |
| CN109707888A (en) * | 2019-02-19 | 2019-05-03 | 新乡市德恩智能工业有限公司 | A kind of hydraulic trigger-type automatic reset mechanism |
| CN109779997A (en) * | 2019-02-19 | 2019-05-21 | 新乡市德恩智能工业有限公司 | A kind of hydraulic trigger-type automatically resets hydraulic valve |
| CN112963579A (en) * | 2021-02-03 | 2021-06-15 | 合肥协力液压科技有限公司 | Reversing valve and valve plate type hydraulic valve set with inching adjustment control function |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201013683Y (en) * | 2007-03-16 | 2008-01-30 | 上海立新液压有限公司 | Hand-driven change valve |
| CN201031827Y (en) * | 2007-04-20 | 2008-03-05 | 焦集群 | Manual reversing bidirectional controlling valve |
| CN201753783U (en) * | 2010-08-19 | 2011-03-02 | 合肥长源液压件有限责任公司 | Positioning reset structure of manual reversing valve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7775405B2 (en) * | 2006-12-22 | 2010-08-17 | Meadwestvaco Calmar, Inc. | Sprayer including pressure build-up discharge valve assembly with poppet valve having integrated spring |
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- 2010-08-19 CN CN 201010264428 patent/CN101936422B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201013683Y (en) * | 2007-03-16 | 2008-01-30 | 上海立新液压有限公司 | Hand-driven change valve |
| CN201031827Y (en) * | 2007-04-20 | 2008-03-05 | 焦集群 | Manual reversing bidirectional controlling valve |
| CN201753783U (en) * | 2010-08-19 | 2011-03-02 | 合肥长源液压件有限责任公司 | Positioning reset structure of manual reversing valve |
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| CN101936422A (en) | 2011-01-05 |
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