CN203248826U - Normally-open electric heating actuator - Google Patents
Normally-open electric heating actuator Download PDFInfo
- Publication number
- CN203248826U CN203248826U CN 201220746505 CN201220746505U CN203248826U CN 203248826 U CN203248826 U CN 203248826U CN 201220746505 CN201220746505 CN 201220746505 CN 201220746505 U CN201220746505 U CN 201220746505U CN 203248826 U CN203248826 U CN 203248826U
- Authority
- CN
- China
- Prior art keywords
- connecting cylinder
- thermometer bulb
- push rod
- housing
- opening
- 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
Links
- 238000005485 electric heating Methods 0.000 title claims abstract description 11
- 238000010438 heat treatment Methods 0.000 claims abstract description 29
- 229920003023 plastic Polymers 0.000 claims description 8
- 239000004033 plastic Substances 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 abstract 4
- 239000000463 material Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000008676 import Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Mechanically-Actuated Valves (AREA)
Abstract
The utility model provides a normally-open electric heating actuator and belongs to the field of mechanical techniques. The actuator solves a problem that stability of electric heating actuator is affected by an action of valve rod heat of present electric heating actuator transmitted to a temperature bulb. The normally-open electric heating actuator comprises a pedestal and a cylindrical shell, wherein the shell is fastened on the pedestal; a cavity is arranged between the shell and the pedestal; the cavity is provided with a temperature bulb; the temperature bulb is provided with a heating member; the pedestal is provided with a cylindrical connecting cylinder; the temperature bulb is disposed in the connecting cylinder; springs are arranged between the temperature bulb and the shell; the temperature bulb is positioned in the connecting cylinder under an action of elastic force of the springs; the connecting cylinder is further provided with an ejector pin capable of moving up and down along the connecting cylinder; a positioning structure is arranged between the ejector pin and the shell; the ejector pin can move in a preset route by the use of the positioning structure; and a gap is arranged between the ejector pin and the temperature bulb when the heating member is disconnected. Heat of the valve body of the normally-open electric heating actuator cannot be transmitted to the temperature bulb, thereby generating relative greater working stability.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of final controlling element, particularly a kind of electrical actuator of often opening for the control valve switching.
Background technique
Electrical actuator is called again electric heating constant temperature controller, is a kind of device that is used for remote control system flow, heat (cold) of novel concept, is applicable to the heating in dwelling house, market, hotel and temperature control, the measure by door of central air-conditioner.Electrical actuator is mainly used in the floor heating heating system, controls closing and opening of pipeline.Specifically be applied to the electric drive part of the electrical actuator of water collecting and diversifying device branch road valve, valvelet, transient equiliblium valve.Work operation noise free, nut connection mode is simple, convenient disassembly is installed rapidly
Temp controller is installed on the room interior wall wall, is connected with electrical actuator with elastic cable paper, generally with the long cable of 100cm final controlling element is connected to selected control point (temp controller, programmable device, timer or other remote-control device).Final controlling element is connected on the valve with nut.When room temperature reached the temperature of temperature controller setting, positive thermistor was started working in the electrical actuator, and the heat hot expansion gear makes valve open, otherwise room temperature reduces, and temp controller disconnects, and final controlling element is lowered the temperature, and expansion gear shrinks, valve closing.General import and domestic brand all have the outage auto-reset function.Existing electrical actuator thermometer bulb directly and valve rod link, the heat at valve rod place can be passed to the thermometer bulb place, affects the stability of electrical actuator.
Its publication number of Chinese patent CN102095021A provide " a kind of electrical actuator ", it comprises fixed base and the base that can be connected mutually with valve body, be fixed with thermometer bulb and electrical heating elements in the described fixed base, described electrical heating elements links to each other with the body of thermometer bulb, has all the time to the flexible connection mechanism that is resisted against base direction mobile trend continuous by an end that can make fixed base between described fixed base and the base.Although its compact structure,, during use or valve rod directly contacts with thermometer bulb, the stability of final controlling element or can be affected.
Existing other electrical actuator also all exists similar problem.
Summary of the invention
The purpose of this utility model is the problems referred to above that exist for prior art, provides a kind of stability in use high, the electrical actuator of often opening simple in structure.
The purpose of this utility model can realize by following technical proposal: a kind of electrical actuator of often opening, comprise base and tubular housing, described housing is connected on the base and between has cavity, has thermometer bulb in the described cavity, has heating element on the described thermometer bulb, it is characterized in that, has tubular connecting cylinder on the described base, above-mentioned thermometer bulb is provided with spring in connecting cylinder and between thermometer bulb and housing, thermometer bulb is positioned in the connecting cylinder under the elastic force effect of spring, also having in the described connecting cylinder can be along its push rod that moves up and down, has limit structure between described push rod and the housing, can make push rod mobile in setting stroke by this limit structure, when above-mentioned heating element no electric circuit, have the gap between push rod and the thermometer bulb.
The Ben Changkai electrical actuator is connected on the valve body of valve, and push rod is between the thermometer bulb of the valve rod of valve and final controlling element.During the final controlling element no electric circuit, push rod be resisted against on the valve rod and push rod and valve rod between have the gap.Valve is in opening state.
In case after the final controlling element energising, owing to heating element links by wire and power supply, so the heating element heating, thermometer bulb extends at the thermosensitive element of the heat effect that is subjected to above-mentioned heating element on it, thermosensitive element top after the elongation is pressed on the push rod, and push rod remakes and is used on the valve rod, thereby makes valve realize closing.
Above-mentioned often opening in the electrical actuator, described connecting cylinder sidepiece axially has the bar hole that runs through along it, above-mentioned limit structure comprises pin and the inboard gear edge of protruding of housing of push rod sidepiece, and described pin is through at the bar hole place and its outer end is positioned under the gear edge.
After the gear edge stopped pin, the shift motion of push rod just was defined, and avoids push rod by coming off in the connecting cylinder.
Above-mentioned often opening in the electrical actuator, described housing sidepiece has the attachment hole that runs through, described connection hole be fixed with take the shape of the letter U and have a flexible fastener, the two ends of described fastener have the clasp that protrudes laterally, are formed for the gear edge that stops that pin moves up and down between the described fastener two ends.
Fastener snaps onto the connection hole by two clasps on it, and simultaneously, pin is positioned at the U-shaped opening of fastener.
Above-mentioned often opening in the electrical actuator, described thermometer bulb top cover has thermometer bulb cover, the two ends of above-mentioned spring to push up respectively to be pressed in thermometer bulb cover and housing inboard.
By the thermometer bulb cover spring and thermometer bulb are intercepted, thermometer bulb is heat insulation plastic materials.Obviously, the temperature at temperature place can not conduct to the spring place.
Above-mentioned often opening in the electrical actuator, described heating element is the metal electric heating wire.
Above-mentioned often opening in the electrical actuator, described heating element is heating pipe.
No matter be metal electric heating wire or metal electric heating tube, heating element can both generate heat after the energising.
Above-mentioned often opening in the electrical actuator, described base edge has the positioned edge of ringwise protrusion, and inboard, described housing port has recessed ringwise locating slot and above-mentioned positioned edge and is positioned at the locating slot place.
Positioned edge cooperates with locating slot makes the port of housing snap onto chassis outer side.
As another scheme, above-mentioned often opening in the electrical actuator, described limit structure comprise connecting cylinder inboard protrude that convex edge one and the push rod outside protrude can with one contacted convex edge two, convex edge.
Above-mentioned often opening in the electrical actuator, described push rod is working of plastics.
Push rod adopts working of plastics can intercept the heat at valve rod place, avoids the heat at valve body place to conduct to the thermometer bulb place.
Compared with prior art, the Ben Changkai electrical actuator is owing to intercepting by the valve rod of push rod with thermometer bulb and valve rod, and the heat in the valve body can not conduct to the thermometer bulb place, so that this final controlling element working stability is higher.Simultaneously, avoid push rod skew or come off by limit structure, further improve its stability.
In addition, housing and base all adopt plastic materials to make, and both adopt snapping, and it is easy to assembly, has higher use value.
Description of drawings
Fig. 1 is the form structure schematic diagram of Ben Changkai electrical actuator.
Fig. 2 is the sectional structure schematic diagram of Ben Changkai electrical actuator.
Fig. 3 is the sectional structure schematic diagram at push rod place in the Ben Changkai electrical actuator.
Fig. 4 is the structural representation of fastener in the Ben Changkai electrical actuator.
Among the figure, 1, housing; 1a, locating slot; 1b, attachment hole; 2, base; 2a, positioned edge; 2b, connecting cylinder; 2c, bar hole; 3, spring; 4, heating element; 5, push rod; 5a, pin; 6, thermometer bulb cover; 7, fastener; 7a, clasp; 8, gear edge; 9, thermometer bulb.
Embodiment
As shown in Figure 1, the Ben Changkai electrical actuator comprises base 2 and tubular housing 1, base 2 and housing 1 all are plastic materials, housing 1 is connected on the base 2 and between has cavity, in the present embodiment, base 2 edges have the positioned edge 2a of ringwise protrusion, and inboard, housing 1 port has recessed ringwise locating slot 1a and above-mentioned positioned edge 2a and is positioned at locating slot 1a place.
As shown in Figures 2 and 3, has tubular connecting cylinder 2b on the base 2, in the cavity of connecting cylinder 2b between housing 1 and base 2.Be provided with spring 3 between thermometer bulb 9 and the housing 1 and under the elastic force effect of spring 3 thermometer bulb 9 be positioned in connecting cylinder 2b place, have on the thermometer bulb 9 for the heating element 4 that is connected with electric wire.In the present embodiment, heating element 4 is the PCT thermistor.
Also have the push rod 5 of energy protuberate basic unit in the connecting cylinder 2b, push rod 5 is plastic materials, and push rod 5 links with making its limit structure mobile in setting stroke, has the gap between push rod 5 and the thermometer bulb 9 when above-mentioned heating element 4 no electric circuit.Thermometer bulb 9 tops cover has the thermometer bulb cover 6 of plastic materials, and the two ends of spring 3 are pushed up respectively and are pressed in thermometer bulb cover 6 and housing 1 inboard.
Connecting cylinder 2b sidepiece axially has the bar hole 2c that runs through along it, and limit structure comprises the pin 5a of push rod 5 sidepieces and the housing 1 inboard gear that protrudes along 8, and pin 5a passes above-mentioned bar hole 2c and can contact along 8 with keeping off when above-mentioned pin 5a moves to lowest part.In the present embodiment, housing 1 sidepiece has the attachment hole 1b that runs through, attachment hole 1b place be fixed with take the shape of the letter U and have a flexible fastener 7, the two ends of fastener 7 have the clasp 7a that protrudes laterally, be formed between fastener 7 two ends stopping that gear that pin 5a moves up and down along 8, sees Fig. 3 and shown in Figure 4.According to actual conditions, limit structure also can adopt another mode, namely limit structure comprise connecting cylinder inboard protrude that convex edge one and the push rod outside protrude can with one contacted convex edge two, convex edge.
The Ben Changkai electrical actuator is connected on the valve body of valve, and push rod 5 is between the thermometer bulb 9 of the valve rod of valve and final controlling element.During heating piece 4 no electric circuit, push rod 5 be resisted against on the valve rod and push rod 5 and valve rod between have the gap.At this moment, valve is in opening state.
After the final controlling element energising, heating element 4 heatings, the thermosensitive element on the thermometer bulb 9 expands, and promotes the bar in the thermometer bulb, thus the top is pressed on the push rod 5, and push rod 5 remakes and is used on the valve rod, thereby makes valve realize closing.
Claims (9)
1. often open electrical actuator for one kind, comprise base (2) and tubular housing (1), described housing (1) is connected in base (2) upward and between has cavity, has thermometer bulb (9) in the described cavity, has heating element (4) on the described thermometer bulb (9), it is characterized in that, has tubular connecting cylinder (2b) on the described base (2), above-mentioned thermometer bulb (9) is positioned at connecting cylinder (2b) and is provided with spring (3) between thermometer bulb (9) and housing (1), thermometer bulb (9) is positioned in the connecting cylinder (2b) under the elastic force effect of spring (3), also having in the described connecting cylinder (2b) can be along its push rod that moves up and down (5), has limit structure between described push rod (5) and the housing (1), can make push rod (5) mobile in setting stroke by this limit structure, when above-mentioned heating element (4) no electric circuit, have the gap between push rod (5) and the thermometer bulb (9).
2. the electrical actuator of often opening according to claim 1, it is characterized in that, described connecting cylinder (2b) sidepiece axially has the bar hole (2c) that runs through along it, above-mentioned limit structure comprises the pin (5a) of push rod (5) sidepiece and the inboard gear that protrudes of housing (1) along (8), and described pin (5a) is through at that bar hole (2c) is located and its outer end is positioned at gear under (8).
3. the electrical actuator of often opening according to claim 2, it is characterized in that, described housing (1) sidepiece has the attachment hole (1b) that runs through, described attachment hole (1b) is located to be fixed with and is taken the shape of the letter U and have flexible fastener (7), the two ends of described fastener (7) have the clasp (7a) that protrudes laterally, are formed for the gear edge (8) that stops that pin (5a) moves up and down between described fastener (7) two ends.
4. according to claim 1 and 2 or the 3 described electrical actuators of often opening, it is characterized in that, described thermometer bulb (9) top cover has thermometer bulb cover (6), the two ends of above-mentioned spring (3) to push up respectively to be pressed in thermometer bulb cover (6) and housing (1) inboard.
5. according to claim 1 and 2 or the 3 described electrical actuators of often opening, it is characterized in that, described heating element (4) is the metal electric heating wire.
6. according to claim 1 and 2 or the 3 described electrical actuators of often opening, it is characterized in that, described heating element (4) is heating pipe.
7. according to claim 1 and 2 or the 3 described electrical actuators of often opening, it is characterized in that, described base (2) edge has the positioned edge (2a) of ringwise protrusion, and described housing (1) inboard, port has ringwise recessed locating slot (1a) and above-mentioned positioned edge (2a) and is positioned at locating slot (1a) and locates.
8. the electrical actuator of often opening according to claim 1 is characterized in that, described limit structure comprise connecting cylinder (2b) inboard protrude that convex edge one and push rod (5) outside protrude can with one contacted convex edge two, convex edge.
9. according to claim 1 and 2 or the 3 described electrical actuators of often opening, it is characterized in that, described push rod (5) is working of plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220746505 CN203248826U (en) | 2012-12-28 | 2012-12-28 | Normally-open electric heating actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220746505 CN203248826U (en) | 2012-12-28 | 2012-12-28 | Normally-open electric heating actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203248826U true CN203248826U (en) | 2013-10-23 |
Family
ID=49375265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220746505 Expired - Fee Related CN203248826U (en) | 2012-12-28 | 2012-12-28 | Normally-open electric heating actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203248826U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742706A (en) * | 2014-01-09 | 2014-04-23 | 昆明理工大学 | Electric heating type flow intelligent adjusting valve and control method thereof |
| CN110873010A (en) * | 2018-08-31 | 2020-03-10 | 曼胡默尔滤清器（上海）有限公司 | Elastic buckle connecting mechanism for plastic intake manifold |
-
2012
- 2012-12-28 CN CN 201220746505 patent/CN203248826U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742706A (en) * | 2014-01-09 | 2014-04-23 | 昆明理工大学 | Electric heating type flow intelligent adjusting valve and control method thereof |
| CN103742706B (en) * | 2014-01-09 | 2016-06-08 | 昆明理工大学 | A kind of electroheating type flow quantity intelligent regulates valve and control method thereof |
| CN110873010A (en) * | 2018-08-31 | 2020-03-10 | 曼胡默尔滤清器（上海）有限公司 | Elastic buckle connecting mechanism for plastic intake manifold |
| CN110873010B (en) * | 2018-08-31 | 2024-04-16 | 曼胡默尔滤清器（上海）有限公司 | Elastic buckle connecting mechanism of plastic intake manifold |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203248826U (en) | Normally-open electric heating actuator | |
| CN105304408A (en) | Shape memory alloy temperature control current switch | |
| CN204332830U (en) | The reset bimetallic temperature controller that a kind of high temperature resistant sensitivity is adjustable | |
| CN103822009A (en) | Actuator | |
| US10132300B2 (en) | Actuator device | |
| CN107173302A (en) | The temp auto-controlled heater of tropical aquarium | |
| CN201655569U (en) | Gate closing and opening actuator of automatic circuit breaker | |
| CN206516564U (en) | A kind of compression-type temperature controller forced shutdown structure | |
| CN209675197U (en) | A kind of inserted bar type temperature controller | |
| CN202650983U (en) | Temperature switch | |
| CN218294693U (en) | Electric heating actuator | |
| CN205140865U (en) | Liquid expansion type temperature controller | |
| CN219329217U (en) | Household appliance temperature controller capable of realizing fire and heat protection | |
| CN210805617U (en) | Inserted rod type temperature controller with double-sided temperature sensing structure | |
| CN216120073U (en) | Plug-in temperature controller | |
| CN2800173Y (en) | Bearing water tank with overheating prevention function for solar water heater | |
| CN114899043A (en) | Novel liquid expansion temperature controller | |
| CN201121973Y (en) | Compound control valve and instant electric water heater equipped with the same | |
| CN217562474U (en) | Novel liquid temperature controller that expands | |
| CN209263149U (en) | A kind of electrical actuator | |
| CN217468288U (en) | Miniature liquid expanding temperature controller | |
| CN210318780U (en) | Novel frequency conversion linear electric heating actuator | |
| CN201695999U (en) | Wellhead temperature-control electricity-saving device | |
| CN204467795U (en) | Electric heating water boiling device | |
| CN220121743U (en) | Temperature controller capable of automatically powering off |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: VOLDA ENVIRONMENTAL TECHNOLOGY JIANGSU CO., LTD. Free format text: FORMER OWNER: ZHUO DANCHUN Effective date: 20140418 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 317608 TAIZHOU, ZHEJIANG PROVINCE TO: 223900 SUQIAN, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140418 Address after: Suqian City, Jiangsu province Shuang'gou 223900 west of Sihong County Economic Development Zone No. 388 Patentee after: WOERDA ENVIRONMENTAL TECHNOLOGY JIANGSU CO., LTD. Address before: Taizhou City, Zhejiang province 317608 Yuhuan County Lu Pu Industrial Park Zhejiang world HVAC technology Co Ltd Patentee before: Zhuo Danchun |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170216 Address after: Jiangdong Road Jianye District of Nanjing City, Jiangsu province 210019 C Wanda Center No. 108 Room 501 Patentee after: Jiangsu Wo Hui Industrial Technology Group Limited Address before: Suqian City, Jiangsu province Shuang'gou 223900 west of Sihong County Economic Development Zone No. 388 Patentee before: WOERDA ENVIRONMENTAL TECHNOLOGY JIANGSU CO., LTD. |
|
| 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: 20131023 Termination date: 20171228 |