CN207740336U - A kind of constant force pressing device based on butterfly spring - Google Patents
A kind of constant force pressing device based on butterfly spring Download PDFInfo
- Publication number
- CN207740336U CN207740336U CN201721814736.8U CN201721814736U CN207740336U CN 207740336 U CN207740336 U CN 207740336U CN 201721814736 U CN201721814736 U CN 201721814736U CN 207740336 U CN207740336 U CN 207740336U
- Authority
- CN
- China
- Prior art keywords
- butterfly spring
- nut
- lower flange
- constant force
- pressing device
- 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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- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
A kind of constant force pressing device based on butterfly spring, including upper and lower flange and gasket, gasket is placed between lower flange, is uniformly provided with bolt hole on circumference of flange, and bolt hole is placed in by screw bolt and nut and fixes upper lower flange, butterfly spring piece or butterfly spring assembly are equipped between upper and lower flange face and nut；By the fixed upper lower nut of the torque rotation of given fixing nut.
Description
Technical field
The utility model is related to a kind of pressing devices more particularly to a kind of constant force using butterfly spring assembly to press compact package
It sets.
Background technology
This application involves reaction vessel (reaction kettle etc.) sealing, the especially seal request to the temperature change of flange
Sealing when high.The sealing of existing reaction vessel (reaction kettle etc.) is using flange and gasket, especially fluorine, silicon rubber
Equal gaskets participate in preparing, but the resistance to temperature of the materials gasket such as fluorine, silicon rubber is limited, are being reacted if using steel sealing circle
Temperature, pressure and stress inside container have the possibility of leakage when being varied from.
For disc spring when in use when there is temperature change, the stress of generation has corresponding variation, adds the difference of rigidity,
Therefore it can be had an unexpected effect in the sealing of reaction vessel using disc spring combination patch applications.Some important events can be with
It is solved the problems, such as with application scheme.
Utility model content
The technical problems to be solved in the utility model is：A kind of butterfly spring seal assembly is provided, to the temperature change of flange
Sealing when seal request is high.In particular for being all had under condition of different temperatures for existing reaction vessel (reaction kettle etc.)
Preferable sealing.
Scheme is used by order to overcome the deficiencies in the prior art, the utility model to solve technical problem：One
Kind of the constant force pressing device based on butterfly spring, including upper and lower flange and gasket, gasket is placed between lower flange, flange circle
It is uniformly provided with bolt hole on week, and bolt hole is placed in by screw bolt and nut and fixes upper lower flange, between upper and lower flange face and nut
It is equipped with butterfly spring piece or butterfly spring assembly；By the fixed upper lower nut of the torque rotation of given fixing nut.By given fixation
The fixed upper lower nut of torque rotation of nut, then ensure to still ensure that suitable sealed pressure when the temperature changes such as heated, cooling.
I.e. reaction vessel expanded by heating when, be transmitted to flange, butterfly spring piece or butterfly spring assembly is heated compresses, compensation sealing pressure, compensation
Nut-screw it is heated when the reduced sealed pressure of expansion, when container contract on cooling, tab (s) spring is cooled reinstatement, close
Seal pressure is constant.
Advantageous effect：Application scheme compensates nut in butterfly spring piece or the heated compression of butterfly spring assembly, compensation sealing pressure
Screw rod it is heated when the reduced sealed pressure of expansion, when container contract on cooling, tab (s) spring is cooled reinstatements, and sealing is pressed
Power is constant.For the sealing of the container in the temperature change of flange and when seal request is high, such as accurate and requirement sealing is tight
Reaction kettle etc..Reaction kettle all has preferable sealing under condition of different temperatures.It is solved using the utility model and uses hard
Gasket material is under condition of different temperatures the problem of uniform pressure.Ensure that the compression of gasket is uniform.
Description of the drawings
Fig. 1 is the structural schematic diagram of the preferred embodiment of the utility model.
Specific implementation mode
The utility model is described in further detail presently in connection with attached drawing and preferred embodiment.These attached drawings are letter
The schematic diagram of change, only illustrates the basic structure of the utility model in a schematic way, thus its only show it is related with the utility model
Composition.
As shown in Figure 1, constant force controls pressing device, including upper lower flange 1,6, gasket 4, gasket 4 are placed in upper flange
1, (plane) between lower flange 6, be uniformly provided with bolt hole on circumference of flange, and be placed in bolt hole by bolt 5 and nut 2,2-1 and consolidated
Surely upper lower flange, is equipped with butterfly spring piece 3,3-1 or butterfly spring assembly between upper lower flange and nut.8 be reaction kettle.
The dimensions of embodiment according to the present utility model, butterfly spring piece isInternal diameter ×When outer diameter；
Washer is steel ring, thickness 3.5mm.
It is enlightenment, through the above description, art technology with the above-mentioned desirable embodiment according to the utility model
Personnel can carry out various changes and amendments in the range of without departing from this item utility model technological thought completely.This item
The range of utility model is not limited to the contents of the specification, it is necessary to determine its range according to right.
Claims (2)
1. a kind of constant force pressing device based on butterfly spring, including upper and lower flange and gasket, gasket be placed in lower flange it
Between, be uniformly provided with bolt hole on circumference of flange, and bolt hole is placed in by screw bolt and nut and fixes upper lower flange, upper and lower flange face with
Butterfly spring piece is equipped between nut；By the fixed upper lower nut of the torque rotation of given fixing nut.
2. the constant force pressing device according to claim 1 based on butterfly spring, it is characterized in that the specification of butterfly spring piece is internal diameter φ
20.6mm × outer diameter φ 50mm；Thickness is 3.5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721814736.8U CN207740336U (en) | 2017-12-22 | 2017-12-22 | A kind of constant force pressing device based on butterfly spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721814736.8U CN207740336U (en) | 2017-12-22 | 2017-12-22 | A kind of constant force pressing device based on butterfly spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207740336U true CN207740336U (en) | 2018-08-17 |
Family
ID=63119346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721814736.8U Expired - Fee Related CN207740336U (en) | 2017-12-22 | 2017-12-22 | A kind of constant force pressing device based on butterfly spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207740336U (en) |
-
2017
- 2017-12-22 CN CN201721814736.8U patent/CN207740336U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| 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: 20180817 Termination date: 20201222 |