CN205371787U - A execute component for self -operated regulator - Google Patents
A execute component for self -operated regulator Download PDFInfo
- Publication number
- CN205371787U CN205371787U CN201520929210.9U CN201520929210U CN205371787U CN 205371787 U CN205371787 U CN 205371787U CN 201520929210 U CN201520929210 U CN 201520929210U CN 205371787 U CN205371787 U CN 205371787U
- Authority
- CN
- China
- Prior art keywords
- cavity
- push rod
- joint
- operated regulator
- cylinder
- 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 discloses an execute component for self -operated regulator to solution fluid runs off, the malfunctioning problem of actuating mechanism. A execute component for self -operated regulator, including the cylinder, it has the cavity to open in the cylinder, is equipped with sealed corrugated metal pipe in the cavity, and the one end of cylinder is equipped with the end cover, is equipped with the pressure spring between corrugated metal pipe and end cover, and it has the guiding hole to open on the end cover, and the capillary passes the guiding hole stretches into the appearance intracavity of the tubular one -tenth of corrugated metal, is equipped with and follows the push rod that holds the motion of chamber length direction holding the intracavity, and the front end of push rod passes and holds the chamber protractile outside the cavity, and the periphery that is located the push rod in the cavity is equipped with the reset spring who is used for the push rod to reset.
Description
Technical field
This utility model relates to regulating valve technology, is specifically related to a kind of executive component for direct-operated regulator.
Background technology
The direct-operated regulator of temperature-driven is dependent in pipeline the fluid temperature variations of flowing to control valve, regulates valve also referred to as direct acting type.By in the mechanism that variations in temperature drives, including the valve directly utilizing actuator operation.This valve adopts capillary tube actuator and sensing element to be coupled together, and sensing element is placed in fluid media (medium), and arranges fluid in sensing element, is raised by temperature of fluid medium and makes fluid expand, and fluid flows through capillary tube and is pushed to actuator action.
But the adjustment valve that said temperature drives there is a problem in that if it occur that fluid leakage, as capillary tube breaks suddenly, then actuator will be unable to drive valve opening or closedown, it will malfunctioning, causes system safety hazards.
Utility model content
This utility model is intended to provide a kind of executive component for direct-operated regulator, to solve fluid loss, the problem that actuator is malfunctioning.
Executive component for direct-operated regulator, including cylinder, cavity is had in cylinder, Packed metal bellows is set in cavity, cylindrical one end is provided with end cap, stage clip it is provided with between metal bellows and end cap, end cap has pilot hole, capillary tube extend in the cavity volume that metal bellows is formed through described pilot hole, the push rod that can move it is provided with along cavity volume length direction in cavity volume, the front end of push rod projects over outside cavity through cavity volume, and the periphery being positioned at push rod in cavity is provided with the back-moving spring resetted for push rod.
Operation principle of the present utility model is as follows: when with executive component with the use of sensing element experience oil liquid temperature in fluid media (medium) raise or reduce time, fluid can flow into capillary tube in the chamber of sensing element or flow into the chamber of sensing element from capillary tube, when being flowed in capillary tube and be flowed in the cavity volume of metal bellows through capillary tube, fluid volume in cavity volume increases will force push rod to move out along cavity volume inwall, the rod end of push rod stretches out cavity, thus promoting valve opening and closing.
The utility model has the advantage of: owing to this programme is being provided with stage clip between metal bellows and end cap, namely have employed pressure spring force and be pressed on the metal bellows of variable volume, metal bellows always can be forced to be in maximum volume state, even when fluid runs off from metal bellows, metal bellows also can have corresponding volume under the effect of stage clip, pressure spring force can compensate the active force of the fluid of loss, the execution unit making actuator is in normal operating position, reduces the impact on system.
Further, being provided with the first joint in cavity, the first joint has the first via, push rod is through described first via, and the end of metal bellows is fixed on the end face of joint.When pushrod movement, its motion is played the effect of guiding by the first via.
Further, fix at be laterally provided with liner, liner and the push rod of the first joint, one end of back-moving spring is fixed on liner, and the cylindrical other end is provided with the second joint, and the second joint has the second via, push rod is through the second via, and the other end of back-moving spring is against on the end face of the second joint.Owing to liner is fixed on push rod, and one end of back-moving spring is fixed on liner, and therefore push rod is played the effect of reset by the active force of back-moving spring, and the second via of the second joint plays the effect of guiding when pushrod movement.
Further, the second joint is provided with external screw thread, and the inwall of cavity is provided with female thread, and the second joint is threadeded with cylinder.Convenient dismounting the second joint, owing to back-moving spring life-time service easily lost efficacy, is therefore also convenient for changing back-moving spring.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model embodiment.
Detailed description of the invention
Below by detailed description of the invention, this utility model is described in further detail:
Accompanying drawing labelling in Figure of description includes: hollow cylinder the 1, first joint 2, end cap 3, capillary tube 4, shoulder 5, push rod 6, corrugated tube 7, welding ring 8, back-moving spring the 9, second joint 10, liner 11, stage clip 12.
Embodiment is substantially as shown in Figure 1: the present embodiment is for the executive component of direct-operated regulator, and the body of executive component is a cylinder, has cavity in cylinder, and cylindrical one end is provided with end cap, and end cap is connected with cylindrical outer wall thread.The inner side being positioned at end cap in cavity is provided with shoulder, shoulder be laterally provided with the first joint, metal bellows between shoulder and the first joint, junction respectively two welding ring of metal bellows and shoulder and the first joint.Having pilot hole on end cap, capillary tube extend in the cavity volume that metal bellows is formed through described pilot hole, and cavity volume seals, and the cavity volume of metal bellows is the cavity volume of variable volume, and is filled with fluid in cavity volume.
The present embodiment is provided with stage clip between metal bellows and end cap, and one end of stage clip is fixed on packing ring, and packing ring is fixed on corrugated tube, and the other end is fixed on shoulder.Being provided with the push rod that can move along cavity volume length direction in cavity volume, the front end of push rod projects over outside cavity through cavity volume, and the periphery being positioned at push rod in cavity is provided with the back-moving spring resetted for push rod.
Laterally be provided with liner, liner and push rod at the first joint are fixed, and one end of back-moving spring is fixed on liner, the cylindrical other end is provided with the second joint, second joint is provided with external screw thread, and the inwall of cavity is provided with female thread, and the second joint is threadeded with cylinder.
Having the first via in the present embodiment on first joint, push rod is through the first via, and the end of metal bellows is fixed on the end face of joint.Having the second via on second joint, push rod is through the second via, and the other end of back-moving spring is against on the end face of the second joint.
Above-described is only embodiment of the present utility model, and in scheme, the general knowledge such as known concrete structure and characteristic does not do too much description at this.Should be understood that; for a person skilled in the art, under the premise without departing from this utility model structure, it is also possible to make some deformation and improvement; these also should be considered as protection domain of the present utility model, and these are all without affecting effect and the practical applicability that this utility model is implemented.The protection domain that this application claims should be as the criterion with the content of its claim, and the detailed description of the invention in description etc. records the content that may be used for explaining claim.
Claims (4)
1. for the executive component of direct-operated regulator, it is characterized in that, including cylinder, cavity is had in cylinder, Packed metal bellows is set in cavity, cylindrical one end is provided with end cap, stage clip it is provided with between metal bellows and end cap, end cap has pilot hole, capillary tube extend in the cavity volume that metal bellows is formed through described pilot hole, being provided with the push rod that can move along cavity volume length direction in cavity volume, the front end of push rod projects over outside cavity through cavity volume, and the periphery being positioned at push rod in cavity is provided with the back-moving spring resetted for push rod.
2. the executive component for direct-operated regulator according to claim 1, it is characterized in that: in cavity, be provided with the first joint, having the first via on first joint, push rod is through described first via, and the end of metal bellows is fixed on the end face of joint.
3. the executive component for direct-operated regulator according to claim 2, it is characterized in that: be laterally provided with liner at the first joint, liner and push rod are fixed, one end of back-moving spring is fixed on liner, the cylindrical other end is provided with the second joint, having the second via on second joint, push rod is through the second via, and the other end of back-moving spring is against on the end face of the second joint.
4. the executive component for direct-operated regulator according to claim 3, it is characterised in that: described second joint is provided with external screw thread, and the inwall of cavity is provided with female thread, and the second joint is threadeded with cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520929210.9U CN205371787U (en) | 2015-11-20 | 2015-11-20 | A execute component for self -operated regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520929210.9U CN205371787U (en) | 2015-11-20 | 2015-11-20 | A execute component for self -operated regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205371787U true CN205371787U (en) | 2016-07-06 |
Family
ID=56260703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520929210.9U Expired - Fee Related CN205371787U (en) | 2015-11-20 | 2015-11-20 | A execute component for self -operated regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205371787U (en) |
-
2015
- 2015-11-20 CN CN201520929210.9U patent/CN205371787U/en not_active Expired - Fee Related
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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: 20160706 Termination date: 20161120 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |