CN202501074U - Electric valve actuator - Google Patents
Electric valve actuator Download PDFInfo
- Publication number
- CN202501074U CN202501074U CN201220111160XU CN201220111160U CN202501074U CN 202501074 U CN202501074 U CN 202501074U CN 201220111160X U CN201220111160X U CN 201220111160XU CN 201220111160 U CN201220111160 U CN 201220111160U CN 202501074 U CN202501074 U CN 202501074U
- Authority
- CN
- China
- Prior art keywords
- handwheel
- transmission shaft
- electrical switch
- latch
- push rod
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to an electric valve actuator which belongs to the technical field of valve control. The electric valve actuator comprises a machine body, a hand wheel arranged on the machine body, a transmission shaft connected with the hand wheel, an output shaft connected with the transmission shaft, and an electrical switch controlling the electric valve actuator. The electric valve actuator is characterized by being provided with a manual and electrical switch linkage device composed of a large spring, a push rod, a small spring, a baffle and a latch, wherein the hand wheel is connected with the transmission shaft through a clamping connection structure; the baffle is arranged on the hand wheel; the big spring is arranged between the machine body located on one side of the clamping connection structure and the hand wheel; the two ends of the push rod are respectively connected with one end of the small spring and a moving contact of the electrical switch in a driving manner; the other end of the small spring is connected with the machine body; and the latch is arranged on the push rod and is in contact connection with the baffle. The electric valve actuator provided by the utility model has the advantages of simple structure, low cost, high safety coefficient, easiness in production and manufacture, and convenience in operation.
Description
Technical field
The utility model relates to the manual and electronic switching mechanism of a kind of electric device for valve, particularly electric device for valve, belongs to technical field of valve control.
Background technique
The Electric actuator of valve is used very extensive at present; Switching between manual and electronic all has a cover engaging and disengaging gear, utilizes engaging and disengaging gear to select electric operating or manually-operable, but this device exists switching power that catching phenomenon greatly, is often arranged, switches unclear problem; Can't automatically switch; Need during the manually-operable that has operation all the time switch handle and need to increase hand wheel shaft to artificial thrust, what have can not correctly get back to the electric operating state, rate of fault is higher.Therefore, press for a kind of enable manual and electronic automatic switchover are provided, switch reliable, and manually-operable switches to the electric device for valve that need not the handwheel axial force when electronic.
The model utility content
The purpose of the utility model is the deficiency to above-mentioned existing technology, and for to satisfy the demand in market, it is the electronic handwheel axial force that need not that a kind of manual switchover is provided, and hand wheel shaft is to the electric device for valve of no thrust during manually-operable.
The purpose of the utility model realizes through following technological scheme: electric device for valve; Comprise body and be arranged on the electrical switch of the handwheel on the body, the transmission shaft that is connected with handwheel, the output shaft that is connected with transmission shaft and control valve Electric actuator; It is characterized in that; Be provided with the manual and electrical switch linkage that comprises that big spring, push rod, little spring, baffle plate, latch constitute, described handwheel is connected with transmission shaft through interface arrangment, and baffle plate is arranged on the handwheel; Big spring is set in place between the body and handwheel of interface arrangment one side; The end that the push rod two ends connect little spring respectively with drive the moving contact that is connected electrical switch, the other end of little spring is connected with body, said latch (10) is provided with on the push rod.
Described interface arrangment is the circular pin formation that arc groove is set respectively on handwheel and transmission shaft and matees each other with arc groove, or square groove and circular pin formation are set respectively on handwheel and transmission shaft.
Described interface arrangment is mutual coupling to be set respectively fall along wedge pawl formation on handwheel and transmission shaft.
Described is baffle plate when handwheel is set on when unclamping latch with the electrical switch linkage manually, the moving contact of little spring promotion latch and then promotion electrical switch.
Described latch (10) is connected with said baffle plate (9) contact.
The utility model is simple in structure, the manufacturing is easy, and cost is low, and is easy to operate, safety coefficient is high.When the utility model needs manually-operable, only need touch handwheel, handwheel connects transmission shaft through interface arrangment, rotates handwheel and opens or throttle down.The little spring of push rod end promotes push rod, and then promotes electrical switch, makes the electrical switch action, cuts off control circuit, and electric operating was lost efficacy, and plays the safety protection effect.After manually-operable finished, interface arrangment was thrown off under the effect of big spring power, and handwheel and transmission shaft are thrown off automatically; Handwheel is got back to reset condition, because push rod is provided with latch, latch is connected with said baffle plate contact; Make handwheel when resetting, spur push rod through baffle plate and latch; And then make electrical switch get back to original state, and recover control circuit, make the electric operating proper functioning.So just carried out manual and electronic automatic switchover smoothly, and switched clearly, do not disturbed mutually.
Description of drawings
Fig. 1 is the structural representation of the utility model manual operation state.
Fig. 2 is the structural representation of the utility model electric operating state.
Fig. 3 is for being provided with the structural representation of the circular pin formation interface arrangment of arc groove and coupling respectively on the handwheel of the utility model and the transmission shaft.
Fig. 4 is for being provided with the structural representation of square groove and circular pin formation interface arrangment respectively on the handwheel of the utility model and the transmission shaft.
Fig. 5 falls the structural representation along wedge pawl formation interface arrangment for mutual coupling is set respectively on the handwheel of the utility model and the transmission shaft.
Fig. 6 is provided with the structural representation that constitutes interface arrangment along the wedge pawl respectively on handwheel and the transmission shaft of the utility model.
Among the figure: 1 body, 2 handwheels, 3 transmission shafts, 4 output shafts, 5 big springs, 6 push rods, 7 little springs, 8 electrical switches, 9 baffle plates, 10 latches.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is done further explain.These accompanying drawings are the schematic representation of simplification, and the basic structure of the utility model only is described in a schematic way, therefore, all belong to the protection domain of the utility model with the equivalents structure of the utility model structural similarity.
Embodiment one
Electric device for valve; By body 1 and be arranged on the electrical switch 8 of the handwheel 2 on the body, the transmission shaft 3 that is connected with handwheel, the output shaft 4 that is connected with transmission shaft and control valve Electric actuator and comprise that big spring 5, push rod 6, little spring 7, baffle plate 9, latch 10 constitute manually and installation such as electrical switch linkage connect to form; Described handwheel 2 is connected with transmission shaft 3 through interface arrangment; Baffle plate 9 is arranged on the handwheel; Big spring 5 is set in place between the body 1 and handwheel 2 of interface arrangment one side; The end that the push rod two ends connect little spring 7 respectively with drive the moving contact that is connected electrical switch 8, the other end of little spring 7 is connected with body, latch 10 is provided with on the push rod to contact with said baffle plate 9 and is connected.
Described interface arrangment is arc groove to be set respectively form with the circular pin of mating each other on handwheel and transmission shaft, and is as shown in Figure 3.Described interface arrangment also can be employed in square groove and circular pin composition, structure as shown in Figure 4 are set respectively on handwheel and the transmission shaft.
Embodiment two
Electric device for valve; By body 1 and be arranged on the electrical switch 8 of the handwheel 2 on the body, the transmission shaft 3 that is connected with handwheel, the output shaft 4 that is connected with transmission shaft and control valve Electric actuator and comprise that big spring 5, push rod 6, little spring 7, baffle plate 9, latch 10 constitute manually and installation such as electrical switch linkage connect to form; Described handwheel 2 is connected with transmission shaft 3 through interface arrangment; Baffle plate 9 is arranged on the handwheel; Big spring 5 is set in place between the body 1 and handwheel 2 of interface arrangment one side; The end that the push rod two ends connect little spring 7 respectively with drive the moving contact that is connected electrical switch 8, the other end of little spring 7 is connected with body, latch 10 is provided with on the push rod to contact with said baffle plate 9 and is connected.
Described interface arrangment is mutual coupling to be set respectively fall along wedge pawl composition on handwheel and transmission shaft, and is as shown in Figure 5.Described interface arrangment also can be employed in to be provided with along the wedge pawl respectively on handwheel and the transmission shaft forms structure as shown in Figure 6.
Claims (6)
1. electric device for valve; Comprise body (1) and be arranged on the electrical switch (8) of the handwheel (2) on the body, the transmission shaft (3) that is connected with handwheel, the output shaft (4) that is connected with transmission shaft and control valve Electric actuator; It is characterized in that; Be provided with the manual and electrical switch linkage that comprises that big spring (5), push rod (6), little spring (7), baffle plate (9), latch (10) constitute, described handwheel (2) is connected with transmission shaft (3) through interface arrangment, and baffle plate (9) is arranged on the handwheel; Big spring (5) is set in place between the body (1) and handwheel (2) of interface arrangment one side; The end that the push rod two ends connect little spring (7) respectively with drive the moving contact that is connected electrical switch (8), the other end of little spring (7) is connected with body, said latch (10) is provided with on the push rod.
2. electric device for valve according to claim 1 is characterized in that, described interface arrangment is the circular pin formation that arc groove is set respectively on handwheel and transmission shaft and matees each other with arc groove.
3. electric device for valve according to claim 1 is characterized in that, described interface arrangment is that square groove and circular pin formation are set respectively on handwheel and transmission shaft.
4. electric device for valve according to claim 1 is characterized in that, described interface arrangment is mutual coupling to be set respectively fall along the wedge pawl on handwheel and transmission shaft.
5. electric device for valve according to claim 1 is characterized in that, described is baffle plate when handwheel is set on when unclamping latch with the electrical switch linkage manually, the moving contact of little spring promotion latch and then promotion electrical switch.
6. electric device for valve according to claim 1 is characterized in that, described latch (10) is connected with said baffle plate (9) contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220111160XU CN202501074U (en) | 2012-03-22 | 2012-03-22 | Electric valve actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220111160XU CN202501074U (en) | 2012-03-22 | 2012-03-22 | Electric valve actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202501074U true CN202501074U (en) | 2012-10-24 |
Family
ID=47037688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220111160XU Expired - Fee Related CN202501074U (en) | 2012-03-22 | 2012-03-22 | Electric valve actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202501074U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240605A (en) * | 2015-11-12 | 2016-01-13 | 常州兰陵自动化设备有限公司 | Manual lock device for electric device of valve |
-
2012
- 2012-03-22 CN CN201220111160XU patent/CN202501074U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240605A (en) * | 2015-11-12 | 2016-01-13 | 常州兰陵自动化设备有限公司 | Manual lock device for electric device of 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 |
Granted publication date: 20121024 Termination date: 20150322 |
|
| EXPY | Termination of patent right or utility model |