CN103423484B - valve and chromatograph - Google Patents
valve and chromatograph Download PDFInfo
- Publication number
- CN103423484B CN103423484B CN201310411412.XA CN201310411412A CN103423484B CN 103423484 B CN103423484 B CN 103423484B CN 201310411412 A CN201310411412 A CN 201310411412A CN 103423484 B CN103423484 B CN 103423484B
- Authority
- CN
- China
- Prior art keywords
- groove
- attachment hole
- center
- communicated
- valve
- 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.)
- Active
Links
Landscapes
- Multiple-Way Valves (AREA)
Abstract
The invention provides a kind of valve and chromatograph.Valve comprises stators and rotators, and the center of stator is provided with the first attachment hole, and stator Shang Raoqi center is provided with multiple second attachment hole, stator is also provided with the 3rd attachment hole; The center of rotor is provided with the first groove, rotor is provided with arc-shaped slot, the second groove and the 3rd groove around its center, second groove is communicated with formation first groove by the first connecting groove that rotor is arranged with the first groove, and the 3rd groove is communicated with formation second groove by the second connecting groove that rotor is arranged with arc-shaped slot; Rotor is attached on stator, and the first groove is communicated with the first attachment hole, and the second groove is communicated with the second corresponding attachment hole with the 3rd groove, and arc-shaped slot is communicated with the 3rd attachment hole.By being provided with arc-shaped slot on rotor, realizing the first groove and being communicated with the second corresponding attachment hole respectively with the second groove, obtaining more kinds of mode of communicating, realize enriched valve selection function, enhance versatility.
Description
Technical field
The present invention relates to mechanical device, particularly relate to a kind of valve and chromatograph.
Background technique
Chromatograph application chromatography carries out the instrument of qualitative and quantitative analysis to material.Chromatograph is equipped with valve usually, selects different quantity tubes by valve.As Figure 1-Figure 2, valve of the prior art comprises stator 100 and rotor 200, stator 100 is along the circumferential direction provided with multiple through hole 101, and rotor 200 is provided with many grooves 201, stator 100 to be provided with six through holes 101, on rotor 200, correspondence is provided with three grooves 201, by rotary rotor 200, can realize being communicated with between two through holes 101 adjacent on stator 100.See Fig. 1 and Fig. 2, by rotary rotor 200, can only realize two kinds of connected states, cause the selection function of valve in prior art single, versatility is poor, uses inconvenience.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of valve and chromatograph, and the selection function solving valve in prior art is single, and versatility is poor, uses inconvenient defect, realizes selection function, the enhancing versatility of enriching valve, with easy to use.
Technological scheme provided by the invention is, a kind of valve, comprises stators and rotators, and the center of described stator is provided with the first attachment hole, and described stator Shang Raoqi center is provided with multiple second attachment hole, described stator is also provided with the 3rd attachment hole; The center of described rotor is provided with the first groove, described rotor is provided with arc-shaped slot, the second groove and the 3rd groove around its center, described second groove is communicated with formation first groove by the first connecting groove that described rotor is arranged with described first groove, and described 3rd groove is communicated with formation second groove by the second connecting groove that described rotor is arranged with described arc-shaped slot; Described rotor is attached on described stator, and described first groove is communicated with described first attachment hole, and described second groove is communicated with corresponding described second attachment hole with described 3rd groove, and described arc-shaped slot is communicated with described 3rd attachment hole.
Further, the center of circle of described second attachment hole is distributed in in the circular trace that is the center of circle of the center of described stator.
Further, multiple described second attachment hole is divided into multiple second attachment hole one and multiple second attachment hole two, the center of circle of multiple described second attachment hole one is distributed in the center of described stator as in the center of circle radius circular trace that is r1, the center of circle of multiple described second attachment hole two is distributed in the center of described stator as in the center of circle radius circular trace that is r2, described second groove is communicated with corresponding described second attachment hole one, and described 3rd groove is communicated with corresponding described second attachment hole two; Wherein, r1 is not equal to r2.
Further, described stator is provided with the auxiliary circle curve bath be communicated with described 3rd attachment hole, the radius of described auxiliary circle curve bath is identical with the radius of described arc-shaped slot, and described arc-shaped slot is communicated with described 3rd attachment hole by described auxiliary circle curve bath.
Further, the arc length of described auxiliary circle curve bath is not less than the arc length of described arc-shaped slot.
Further, described first groove, described first connecting groove and described second groove are an integral channel structure, and described arc-shaped slot, described second connecting groove and described 3rd groove are an integral channel structure.
Further, described stator is provided with boss structure, described first attachment hole, described second attachment hole and described 3rd attachment hole are distributed on the surface of described boss structure, and described rotor is attached on the surface of described boss structure.
Further, described stator is also fixedly connected with valve head, the center of described valve head is provided with the first external tapping, described valve head Shang Raoqi center is provided with multiple second external tapping, described valve head is also provided with the 3rd external tapping, described first external tapping is communicated with described first attachment hole, described second external tapping is communicated with corresponding described second attachment hole, described 3rd external tapping is communicated with corresponding described 3rd attachment hole, multiple described second external tapping is that divergent shape setting or multiple described second external tapping are distributed on the circumferential side wall of described valve head along the internal surface of described valve head to outer surface direction.
Further, described valve is mortor operated valve or manually operated valve.
The present invention also provides a kind of chromatograph, comprises many quantity tubes, also comprises above-mentioned valve, and described quantity tube to be connected in described valve between two the second attachment holes; Described chromatograph is Ion Chromatograph or liquid chromatograph.
Valve provided by the invention and chromatograph, by being provided with arc-shaped slot on rotor, in rotor turns process, the first groove can be realized be communicated with the second corresponding attachment hole respectively with the second groove, thus more kinds of mode of communicating can be obtained, realize can selecting multiple quantity tube by valve, realize the function of many turns, operator can according to the quantity of quantity tube, corresponding setting second attachment hole that connect corresponding to quantity tube, just can realize different quantity tubes by rotary rotor to work, realize having enriched the selection function of valve, enhance versatility, with easy to use.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the assembling schematic diagram one of stators and rotators in valve in prior art;
Fig. 2 is the assembling schematic diagram two of stators and rotators in valve in prior art;
Fig. 3 is the structural representation of valve embodiments of the present invention;
Fig. 4 is the assembling schematic diagram one of stators and rotators in valve embodiments of the present invention;
Fig. 5 is the structural representation one of stator in valve embodiments of the present invention;
Fig. 6 is the structural representation one of valve embodiments rotor of the present invention;
Fig. 7 is the assembling schematic diagram two of stators and rotators in valve embodiments of the present invention;
Fig. 8 is the structural representation two of stator in valve embodiments of the present invention;
Fig. 9 is the structural representation two of valve embodiments rotor of the present invention;
Figure 10 is the assembling schematic diagram three of stators and rotators in valve embodiments of the present invention;
Figure 11 is the structural representation three of stator in valve embodiments of the present invention;
Figure 12 is the structural representation three of valve embodiments rotor of the present invention.
Embodiment
For making the object of the embodiment of the present invention, technological scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technological scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As shown in figures 3 to 6, the present embodiment valve, comprises stator 1 and rotor 2, and the center of stator 1 is provided with the first attachment hole 11, and stator 1 Shang Raoqi center is provided with multiple second attachment hole 12, stator 1 is also provided with the 3rd attachment hole 13; The center of rotor 2 is provided with the first groove 21, rotor 2 is provided with arc-shaped slot 22, second groove 23 and the 3rd groove 24 around its center, second groove 23 is communicated with formation first groove the 201, three groove 24 by the first connecting groove 25 that rotor 2 is arranged with the first groove 21 and is communicated with formation second groove 202 by the second connecting groove 26 that rotor 2 is arranged with arc-shaped slot 22; Rotor 2 pastes on the stator 1, and the first groove 21 is communicated with the first attachment hole 11, and the second groove 23 is communicated with the second corresponding attachment hole 12 with the 3rd groove 24, and arc-shaped slot 22 is communicated with the 3rd attachment hole 13.Paste on the stator 1 in rotation process at rotor 2, the spin axis of rotor 2, being centrally located on same straight line of the center of circle of arc-shaped slot 22 and stator 1.
Specifically, the present embodiment valve can be mortor operated valve also can be manually operated valve, the present embodiment valve does not limit its driving mode, in addition, the present embodiment valve can be high pressure valve, also can be low pressure valve, the present embodiment valve does not limit its Environmental Conditions, the present embodiment valve is described for the assembly relation of mortor operated valve to stator 1 and rotor 2, and the stator 1 in the present embodiment valve and rotor 2 are arranged in shell 4 usually, and motor 5 drives rotor 2 to rotate.First groove 201 and the second groove 202 will be followed rotor 2 and together be rotated, and the first groove 201 is communicated with the second corresponding attachment hole 12 with the second groove 202.Wherein, the first groove 201 that the first groove 21, first connecting groove 25 and the second groove 23 are formed is an integral channel structure, and the second groove 202 that arc-shaped slot 22, second connecting groove 26 and the 3rd groove 24 are formed is an integral channel structure.Rotor 2 is in rotation process, and the first groove 21 in the first groove 201 will be communicated with the first attachment hole 11 all the time, thus guarantees that the first attachment hole 11 can be communicated with second attachment hole 12 at diverse location place by the first groove 201; Meanwhile, arc-shaped slot 22 in second groove 202 can be communicated with the 3rd attachment hole 13 all the time, thus guarantee that the 3rd attachment hole 13 can be communicated with second attachment hole 12 at diverse location place by the second groove 202, realize the present embodiment valve and can realize multiple mode of communicating, stator can connect many quantity tubes as required, and realize select specific quantity tube to work as required, realize enriched valve selection function, enhance versatility, with easy to use.Such as: for the stator 1 in accompanying drawing 5, there are 10 the second attachment holes 12, then the stator 1 in accompanying drawing 5 can be connected with five quantity tubes, thus realize five kinds of mode of communicating.
Wherein, as Figure 4-Figure 6, the center of circle of the second attachment hole 12 in the present embodiment is distributed in in the circular trace that is the center of circle of the center of stator 1, concrete, second attachment hole 12 is distributed in in the same circular trace that is the center of circle of the center of stator 1, corresponding, rotor 2 fits to after on stator 1, second groove 23 and the 3rd groove 24 are also distributed in in the same circular trace at the second attachment hole 12 place, in rotor 2 rotation process, the second groove 23 is communicated with from the second different attachment holes 12 with the 3rd groove 24.Or, as shown in figs. 7 to 9, multiple second attachment hole is divided into multiple second attachment hole 1 and multiple second attachment hole 2 122, the center of circle of multiple second attachment hole 1 is distributed in the center of stator 1 as in the center of circle radius circular trace that is r1, the center of circle of multiple second attachment hole 2 122 is distributed in the center of stator 1 as in the center of circle radius circular trace that is r2, second groove 23 is communicated with the second corresponding attachment hole 1, and the 3rd groove 24 is communicated with the second corresponding attachment hole 2 122; Wherein, r1 is not equal to r2.Concrete, second attachment hole 1 and the second attachment hole 2 122 are distributed in in the different circular traces that are the center of circle of the center of stator 1 respectively, corresponding, rotor 2 fits to after on stator 1, second groove 23 is distributed in in the same circular trace at the second attachment hole 1 place, and the 3rd groove 24 is distributed in in the same circular trace at the second attachment hole 2 122 place, in rotor 2 rotation process, correspondence is communicated with the second attachment hole 2 122 with the second attachment hole 1 with the 3rd groove 24 by the second groove 23.In addition, as Figure 4-Figure 6, the second groove 23 and the 3rd groove 24 can be acute angle with the line angle at rotor 2 center, or as shown in figs. 7 to 9, the second groove 23 and the 3rd groove 24 can be the straight angle with the line angle at rotor 2 center.
Further, in order to reduce the frictional force between stator 1 and rotor 2, stator 1 is provided with boss structure 10, the first attachment hole 11, second attachment hole 12 and the 3rd attachment hole 13 are distributed on the surface of boss structure 10, and rotor 2 is attached on the surface of boss structure 10.Concrete, boss structure 10 on stator 1 contacts with rotor 2, effectively reduce the area of contact between rotor 2 and stator 1, after rotor 2 contacts with boss structure 10, seal up the groove structure on rotor 2 and the hole structure on stator 1 by the surface of contact between rotor 2 and boss structure 10.Preferably, the stator 1 in the present embodiment and rotor 2 can adopt polyether-ether-ketone (to be called for short: PEEK) high-abrasive material such as resin, nylon is made, and with more effective reduction friction factor, reduces wear.In addition, when the present embodiment valve is used for high pressure valve, the first attachment hole 11, second attachment hole 12 in the present embodiment and the diameter of the 3rd attachment hole 13 can be 0.1mm ~ 1.5mm, the groove width of the first groove 201 and the second groove 202 can be 0.1mm ~ 1.5mm, and the groove depth of the first groove 201 and the second groove 202 can be 0.1mm ~ 1.5mm.
Further, stator 1 is also fixedly connected with valve head 3, the center of valve head 3 is provided with the first external tapping (not shown), valve head 3 Shang Raoqi center is provided with multiple second external tapping 31, valve head 3 is also provided with the 3rd external tapping (not shown), first external tapping is communicated with the first attachment hole 11, second external tapping 31 is communicated with the second corresponding attachment hole 12, 3rd external tapping is communicated with the 3rd corresponding attachment hole 13, multiple second external tapping 31 is that divergent shape setting or multiple second external tapping 31 are distributed on the circumferential side wall of valve head 3 along the internal surface of valve head 3 to outer surface direction.Concrete, first external tapping can be the straight hole along valve head 3 axial direction, and the second external tapping 31 is arranged in divergent shape on valve head 3, thus when blocking occurs appearance second attachment hole 12, fine needle can be adopted to be inserted in the second attachment hole 12 along the second external tapping 31 clear up, thus without the need to dismantling the present embodiment valve, the second attachment hole 12 blocked just can be cleared up easily.And the second external tapping 31 being distributed on the circumferential side wall of described valve head 3, the cross section of the second external tapping 31 is L-type structure, more convenient processing.
Further again, as shown in figs. 10-12, in order to avoid there is the remaining liquid of the tail end of arc-shaped slot 22, stator 1 is provided with the auxiliary circle curve bath 131 be communicated with the 3rd attachment hole 13, the radius of auxiliary circle curve bath 131 is identical with the radius of arc-shaped slot 22, and arc-shaped slot 22 is communicated with the 3rd attachment hole 13 by auxiliary circle curve bath 131.Concrete, rotor 2 is fitted on the stator 1, the tail end of arc-shaped slot 22 will overlap with auxiliary circle curve bath 131, liquid in arc-shaped slot 22 will enter into the 3rd attachment hole 13 by auxiliary circle curve bath 131, due in rotor 2 rotation process, the tail end of arc-shaped slot 22 will overlap with auxiliary circle curve bath 131 all the time, avoids occurring the remaining liquid of the tail end of arc-shaped slot 22, improves the precision of the present embodiment valve.Preferably, the arc length of auxiliary circle curve bath 131 is not less than the arc length of arc-shaped slot 22.
The present invention also provides a kind of chromatograph, comprises many quantity tubes, also comprises above-mentioned valve, and quantity tube to be connected in valve between two the second attachment holes; Chromatograph is Ion Chromatograph or liquid chromatograph.
Valve provided by the invention and chromatograph, by being provided with arc-shaped slot on rotor, in rotor turns process, the first groove can be realized be communicated with the second corresponding attachment hole respectively with the second groove, thus more kinds of mode of communicating can be obtained, realize can selecting multiple quantity tube by valve, realize the function of many turns, operator can according to the quantity of quantity tube, corresponding setting second attachment hole that connect corresponding to quantity tube, just can realize different quantity tubes by rotary rotor to work, realize having enriched the selection function of valve, enhance versatility, with easy to use.
Last it is noted that above embodiment is only in order to illustrate technological scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technological scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technological scheme.
Claims (9)
1. a valve, comprises stators and rotators, it is characterized in that, the center of described stator is provided with the first attachment hole, and described stator Shang Raoqi center is provided with multiple second attachment hole, described stator is also provided with the 3rd attachment hole; The center of described rotor is provided with the first groove, described rotor is provided with arc-shaped slot, the second groove and the 3rd groove around its center, described second groove is communicated with formation first groove by the first connecting groove that described rotor is arranged with described first groove, and described 3rd groove is communicated with formation second groove by the second connecting groove that described rotor is arranged with described arc-shaped slot; Described rotor is attached on described stator, and described first groove is communicated with described first attachment hole, and described second groove is communicated with corresponding described second attachment hole with described 3rd groove, and described arc-shaped slot is communicated with described 3rd attachment hole; Described stator is provided with the auxiliary circle curve bath be communicated with described 3rd attachment hole, the radius of described auxiliary circle curve bath is identical with the radius of described arc-shaped slot, and described arc-shaped slot is communicated with described 3rd attachment hole by described auxiliary circle curve bath.
2. valve according to claim 1, is characterized in that, the center of circle of described second attachment hole is distributed in in the circular trace that is the center of circle of the center of described stator.
3. valve according to claim 1, it is characterized in that, multiple described second attachment hole is divided into multiple second attachment hole one and multiple second attachment hole two, the center of circle of multiple described second attachment hole one is distributed in the center of described stator as in the center of circle radius circular trace that is r1, the center of circle of multiple described second attachment hole two is distributed in the center of described stator as in the center of circle radius circular trace that is r2, described second groove is communicated with corresponding described second attachment hole one, and described 3rd groove is communicated with corresponding described second attachment hole two; Wherein, r1 is not equal to r2.
4. valve according to claim 1, is characterized in that, the arc length of described auxiliary circle curve bath is not less than the arc length of described arc-shaped slot.
5. valve according to claim 1, is characterized in that, described first groove, described first connecting groove and described second groove are an integral channel structure, and described arc-shaped slot, described second connecting groove and described 3rd groove are an integral channel structure.
6. valve according to claim 1, it is characterized in that, described stator is provided with boss structure, and described first attachment hole, described second attachment hole and described 3rd attachment hole are distributed on the surface of described boss structure, and described rotor is attached on the surface of described boss structure.
7. valve according to claim 1, it is characterized in that, described stator is also fixedly connected with valve head, the center of described valve head is provided with the first external tapping, described valve head Shang Raoqi center is provided with multiple second external tapping, described valve head is also provided with the 3rd external tapping, described first external tapping is communicated with described first attachment hole, described second external tapping is communicated with corresponding described second attachment hole, described 3rd external tapping is communicated with corresponding described 3rd attachment hole, multiple described second external tapping is that divergent shape setting or multiple described second external tapping are distributed on the circumferential side wall of described valve head along the internal surface of described valve head to outer surface direction.
8. valve according to claim 1, is characterized in that, described valve is mortor operated valve or manually operated valve.
9. a chromatograph, comprises many quantity tubes, it is characterized in that, also comprise as arbitrary in claim 1-8 as described in valve, described quantity tube to be connected in described valve between two the second attachment holes; Described chromatograph is Ion Chromatograph or liquid chromatograph.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310411412.XA CN103423484B (en) | 2013-09-11 | 2013-09-11 | valve and chromatograph |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310411412.XA CN103423484B (en) | 2013-09-11 | 2013-09-11 | valve and chromatograph |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103423484A CN103423484A (en) | 2013-12-04 |
| CN103423484B true CN103423484B (en) | 2015-08-26 |
Family
ID=49648649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310411412.XA Active CN103423484B (en) | 2013-09-11 | 2013-09-11 | valve and chromatograph |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103423484B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4158630A (en) * | 1978-02-24 | 1979-06-19 | Stearns Stanley D | Chromatographic multi-sample valving apparatus |
| JPS63163076A (en) * | 1986-12-26 | 1988-07-06 | Furonto Eng Kk | Valve |
| WO2009101695A1 (en) * | 2008-02-14 | 2009-08-20 | Shimadzu Corporation | Flow channel switching valve |
| CN101617225A (en) * | 2007-02-22 | 2009-12-30 | 通用电气健康护理生物科学股份公司 | Selector valve |
| CN101680861A (en) * | 2007-05-15 | 2010-03-24 | 通用电气健康护理生物科学股份公司 | Flow divider valve |
| CN102918309A (en) * | 2010-05-20 | 2013-02-06 | 生物辐射实验室股份有限公司 | Rotary column selector valve |
| CN203463722U (en) * | 2013-09-11 | 2014-03-05 | 青岛普仁仪器有限公司 | Valve and chromatograph |
-
2013
- 2013-09-11 CN CN201310411412.XA patent/CN103423484B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4158630A (en) * | 1978-02-24 | 1979-06-19 | Stearns Stanley D | Chromatographic multi-sample valving apparatus |
| JPS63163076A (en) * | 1986-12-26 | 1988-07-06 | Furonto Eng Kk | Valve |
| CN101617225A (en) * | 2007-02-22 | 2009-12-30 | 通用电气健康护理生物科学股份公司 | Selector valve |
| CN101680861A (en) * | 2007-05-15 | 2010-03-24 | 通用电气健康护理生物科学股份公司 | Flow divider valve |
| WO2009101695A1 (en) * | 2008-02-14 | 2009-08-20 | Shimadzu Corporation | Flow channel switching valve |
| CN102918309A (en) * | 2010-05-20 | 2013-02-06 | 生物辐射实验室股份有限公司 | Rotary column selector valve |
| CN203463722U (en) * | 2013-09-11 | 2014-03-05 | 青岛普仁仪器有限公司 | Valve and chromatograph |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103423484A (en) | 2013-12-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103423483B (en) | valve and chromatograph | |
| CN107255175A (en) | A kind of triple valve of strong permanent magnet driving | |
| CN204487448U (en) | A kind of screwdriver of controllable magnetic | |
| CN103423484B (en) | valve and chromatograph | |
| CN203463722U (en) | Valve and chromatograph | |
| CN203463692U (en) | Valve and chromatograph | |
| CN205928440U (en) | Screwdriver appurtenance and use this appurtenance's screwdriver | |
| KR200471406Y1 (en) | axis support | |
| CN202992268U (en) | Double-helical-groove rotary four-way fluid reversing valve | |
| CN103991713A (en) | Rotation type powder suction head | |
| CN213145662U (en) | Connecting structure for exhaust pipe with good sealing effect | |
| CN211082948U (en) | Manual reversing valve with enhanced sealing | |
| CN208214341U (en) | It is a kind of for processing the lathe of Fluorine-lined ball valve core | |
| CN104879525A (en) | Electric reverse three-channel fluid valve | |
| CN214404758U (en) | Rotary core and water valve | |
| CN205978350U (en) | Motor pulley structure | |
| CN104209915B (en) | A kind of locking screwdriver bit | |
| CN106253602B (en) | It is a kind of for assembling the operating device of surface-mount type p-m rotor | |
| CN212959932U (en) | Water tap | |
| CN204772299U (en) | Instrument connects magnetism of end to inhale structure | |
| CN204516700U (en) | A kind of Manual circuit breaker device for permanent magnet mechanism | |
| CN103591156A (en) | Rotor type driving shaft | |
| CN110371278B (en) | Blade hole plugging tool and plugging method | |
| CN213332537U (en) | Rotary switching type four-way valve | |
| CN217272206U (en) | Valve body |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |