CN207261649U - Safety interlock - Google Patents
Safety interlock Download PDFInfo
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- CN207261649U CN207261649U CN201720913413.8U CN201720913413U CN207261649U CN 207261649 U CN207261649 U CN 207261649U CN 201720913413 U CN201720913413 U CN 201720913413U CN 207261649 U CN207261649 U CN 207261649U
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- piston
- cylinder body
- lid
- safety interlock
- tank body
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Abstract
It the utility model is related to a kind of safety interlock, for installation on pressure vessel, wherein pressure vessel includes lid and tank body, lid is used for the upper simultaneously sealed shell of tank of an opening for being covered on tank body, quick-opening device is installed between lid and tank body, the basic structure of quick-opening device is arranged on the flange of lid and the end flange of opening, safety interlock includes cylinder body, end cap, piston and check plate, safety interlock is vertically installed at top or the sidepiece of end flange, piston is arranged in the cavity of cylinder body, piston includes piston rod and piston seat, piston rod is arranged on piston seat, end cap is covered on cylinder body top, the locking through hole walked for piston rod is equipped with end cap and check plate；Cylinder body is fixedly installed relative to tank body, and check plate is fixedly installed relative to lid, and an inlet channel is provided with the base outside the cavity of cylinder body, and inlet channel is used for the cavity and tank body for connecting cylinder body.The utility model uses mechanical interlocks, and security performance is higher.
Description
Technical field
It the utility model is related to a kind of automation equipment, more particularly to a kind of safety interlock.
Background technology
Pressure vessel has explosion hazard, and (lid) OR gate (lid) that opens the door when internal with pressure boosts and can endanger when not completely closing
And personal safety, lead to serious accident.The safety interlock of quick operating valve (lid) formula pressure vessel need to ensure pressure vessel
Internal pressure completely release after could open, then could open quick operating valve (lid).
Chinese patent literature CN106763763A discloses a kind of safety interlock of fast opening blind, the safety interlocking
Device include with lock ring jaggy, tensioning block corresponding with the notch of lock ring, the latch lever being connected with blind plate and with it is chain
The handle that bar coordinates, limit chamber, plunger shaft and the venthole of connection are equipped with inside latch lever from top to bottom, and blind plate is equipped with logical
Hole, blocking lever lower end are fixed in through hole, are equipped with piston rod in plunger shaft, piston rod epimere is stretched into limit chamber, on piston rod
Equipped with spring, step is set, spring upper end is connected with blocking lever, and lower end is connected with step, is fixed with nervous block on piston rod
Connecting plate, connecting plate are fixedly connected with blocking lever, and blocking lever upper end is equipped with the handle hole coordinated with handle, handle hole and limit chamber
Connection.Safety interlock in the utility model, when air pressure is close to atmospheric pressure in equipment, active force of the piston rod in spring
Decline and reset, handle may be inserted into operation and within the walls take out blocking lever at this time, you can open quick operating valve.
Chinese patent literature CN204312699U discloses a kind of Quick opening safety interlocking device for pressure vessel, the device
Main panel is installed on inside seal casinghousing, is fixed with motor and retarder on main panel, the motor shaft of motor and retarder it is defeated
Enter axis to be connected, the output shaft of retarder passes through main panel, and the output shaft end of retarder is provided with gear, the bottom of main panel
Portion is fixed with L-type plate, and L-type plate and main panel surround loose slot, locking bar are provided with loose slot, and locking bar is extended to outside seal casinghousing
Portion, locking bar rear end are provided with rack, and rack and pinion is meshed, and electric machine controller, electric machine controller are provided with the top of locking bar
Installation is provided with the first spring on the home panel, between standing screw and adjustment screw, seals and is provided between blend stop and rack
Second spring, the rear end of rack are provided with spring housing.
However, above-mentioned safety interlock carries out rebound reset using spring, with the increase of number of use, spring
Elasticity can be gradually reduced, cause piston rod spring back after, can not confirm whether the pressure in container discharges completely, service life
It is short, it is difficult to accurately manipulated, and constructional device is complicated, production cost is high.
Utility model content
To solve the above-mentioned problems, the purpose of this utility model is to propose a kind of safety interlock, completely using machine
Tool interlock, is opened by gravity, simple in structure, easy to operate, it can be ensured that the pressure in pressure volume pot is complete
Lid could be opened after release, improves security during operating pressure container.
The utility model proposes a kind of safety interlock, for installation on pressure vessel, pressure vessel includes lid
Body and tank body, lid are used for the upper simultaneously sealed shell of tank of an opening for being covered on tank body, quick operating valve dress are provided between lid and tank body
Put, the basic structure of quick-opening device is arranged on the flange of lid and the end flange of opening, safety interlock include cylinder body,
End cap, piston and check plate, safety interlock are vertically installed at top or the sidepiece of end flange, and piston is arranged at cylinder body
In cavity, piston includes piston rod and piston seat, and piston rod is arranged on piston seat, and end cap is covered on cylinder body top, end cap and
The locking through hole walked for piston rod is equipped with check plate；Cylinder body is fixedly installed relative to tank body, and check plate is relative to lid
Body is fixedly installed, and is provided with an inlet channel on the base outside the cavity of cylinder body, inlet channel be used for the cavity for connecting cylinder body and
Tank body.
Preferably, it is clearance fit between the perisporium of the cavity surrounding of the perisporium of piston seat and cylinder body.
Preferably, safety interlock further includes sealing ring, and the upper surface of piston seat is additionally provided with a circle card slot, and sealing ring is set
It is placed in card slot.
Preferably, it is additionally provided with exhaust hole on end cap, exhaust hole corresponds to vertical direction of the sealing ring in end cap
Within orthographic projection region.
Preferably, the material of piston is hard aluminium alloy.
Preferably, end cap is fixed on the upper end of cylinder body by sealing ring bolt.
The pressure straight up that the safety interlock of the utility model can produce piston in the gas in tank body
More than piston gravity when by promote upwards movement, make piston rod at the same time insertion end cover locking through hole and check plate locking
Through hole, so that the lid of pressure vessel is locked with tank body and can not opened, and the gas pressure in tank body discharges completely
Afterwards, the pressure straight up that the gas in tank body produces piston moves downward when being less than the gravity of piston, makes piston rod
Exited from the locking through hole of end cap and check plate, so as to open lid, so improve and lid is carried out to pressure vessel
The security of opening operation.
The above to allow the utility model can become apparent, and preferred embodiment cited below particularly is simultaneously detailed with reference to attached drawing
Explanation.
Brief description of the drawings
Fig. 1 is the structure diagram of the safety interlock of one embodiment of the utility model.
Fig. 2 is the utility model fast opening type pressure container structure diagram.
Fig. 3 is the utility model quick-opening device structure diagram.
Embodiment
Illustrate the embodiment of the utility model by particular specific embodiment below, those skilled in the art can be by this theory
The bright revealed content of book understands other advantages and effect of the utility model easily.Although the description of the utility model will tie
Close preferred embodiment to introduce together, but this feature for not representing this utility model is only limitted to the embodiment.On the contrary, knot
It is to be possible to extend to cover based on the claim of the utility model to close the purpose that embodiment makees utility model introduction
The other selections or transformation gone out.It will be included in order to provide the depth understanding to the utility model, in being described below many specific
Details.The utility model can not also be implemented using these details.In addition, the weight in order to avoid chaotic or fuzzy the utility model
Point, some details will be omitted in the de-scription.
" on ", " under ", "left", "right", " top ", " bottom " in addition, used in the following description, should not be construed as pair
The limitation of the utility model.
A kind of safety interlock provided by the utility model, for installation on pressure vessel, wherein pressure vessel bag
Lid 7 and tank body 10 are included, lid 7 is used for the upper simultaneously sealed shell of tank 10 of an opening for being covered on tank body 10.As shown in Fig. 2, lid 7
Quick-opening device is installed between tank body 10, the basic structure of quick-opening device is arranged on flange 8 and the end of opening of lid
Portion's flange 9, uniform tooth is processed in the circumferencial direction of flange 8 and end flange 9, as shown in figure 3, the flange by flange 8
Engagement between tooth 13 and the flange tooth 12 of end flange 9 and stagger, so as to achieve the purpose that high-speed switch lid.
As shown in Figure 1, the safety interlock in vertical direction A includes cylinder body 1, end cap 2, piston 3, check plate 4 and close
Seal 5, piston 3 are arranged in the cavity of cylinder body 1, and piston 3 includes piston rod 31 and piston seat 32, and piston rod 31 is arranged at work
On obturating plug 32, the perisporium of piston seat 32 and the perisporium of the cavity surrounding of cylinder body 1 are clearance fit.End cap 2 is covered on cylinder body 1,
And the upper end of cylinder body 1 is fixed on by sealing ring bolt 22, to form completely enclosed space, it is all provided with end cap 2 and check plate 4
There is the locking through hole walked for piston rod.
Cylinder body 1 is fixedly installed on tank body 10 by bolt 6, and check plate 4 is arranged on lid 7 by bolt, check plate 4
Locking through hole 41 and the locking through hole of end cap 2 be correspondingly arranged so that piston rod 31 can be also cross the locking through hole of end cap 2
With the locking through hole 41 of check plate 4, and the direction where the longitudinal center line of the locking through hole 41 of check plate 4 and end cap 2
Direction where locking the longitudinal center line of through hole is vertical direction.
An inlet channel 11 is provided with base outside the cavity of cylinder body 1, inlet channel 11 is used for the cavity for connecting cylinder body 1
With tank body 10, in this way, gas in pressure vessel can enter in the cavity of cylinder body 1.
When the pressure straight up that the gas in tank body 10 produces piston 3 is more than the gravity of piston 3,3 quilt of piston
Promote movement upwards so that piston rod 31 is inserted into the locking through hole 41 of the locking through hole and check plate 4 on end cap 2 at the same time；Work as tank
When the pressure straight up that gas in body 10 produces piston 3 is less than the gravity of piston 3, piston 3 moves downward so that living
Stopper rod 31 is exited from the locking through hole 41 of check plate 4.
Wherein, safety interlock further includes sealing ring 5, and the upper end of piston seat 32 is additionally provided with card slot, and sealing ring 5 is set
In card slot, card slot is located on the horizontal stand of piston seat 32.The gas that sealing ring 5 is used in tank body 10 produces piston 3
Pressure straight up be more than piston 3 vertical direction gravity and by promote upwards movement when, contact and compress with end cap 2
The bottom of end cap 2.
End cap 2 further includes exhaust hole 21, and exhaust hole 21 corresponds to sealing ring 5 and thrown in the positive of vertical direction of end cap 2
Within the domain of shadow zone；The pressure straight up that the gas that exhaust hole 21 is used in tank body 10 produces piston 3 is more than piston 3
Gravity and by promote upwards movement when, discharge 2 bottom of 32 upper end of piston seat and end cap between air.
Specifically, safety interlock is vertically arranged to outside pressure vessel, it is preferable that safety interlock is installed on
The top of the end flange 9 of opening or sidepiece.When chamber of the gas with pressure by air inlet 11 into cylinder body 1 in tank body 10
In vivo, and piston 3 be subject to the pressure of gas straight up be more than piston 3 gravity when, gas push piston 3 moves up, cylinder
The gas of the top of body 1, i.e. gas between 32 upper end of 2 bottom of end cap and piston seat are discharged by exhaust hole 21.Piston
It is close by the compressed gas clamping piston 3 of the lower section of piston seat 32, extruding when the upper end of seat 32 is contacted with the bottom of end cap 2
Seal 5, makes to form seal cavity in cylinder body 1.Piston rod 31 after moving up is inserted into locking through hole and check plate on end cap 2
4 locking through hole 41 is to complete safety interlocking.The end flange 9 of opening is fixed on tank body 10,9 phase of end flange of opening
Remain constant for the position of tank body 10, by the way that the flange 8 of lid is rotated a certain angle, realize the flange tooth 13 of lid
Engagement between the end flange tooth 12 of opening so that completely enclosed inside pressure vessel.
When needing to open pressure vessel, the air bleeding valve that need to be first turned on pressure vessel, but when in pressure vessel
After compressed gas release completely, when the gravity of itself of piston 3 upwards pressure more than gas, piston 3 slides downwards, piston rod 31
Exited from the locking through hole 41 of check plate 4, so as to release safety interlocking.The end flange 9 of opening is fixed on tank body 10,
It remains constant relative to the position of tank body 10, by the way that the flange 8 of lid is rotated a certain angle, realizes the flange of lid
Staggering between tooth 13 and the end flange tooth 12 of opening, lid could be opened at this time, achievees the purpose that Rapid opening.So as to carry
The high security of pressure vessel.
It should be noted that due to piston 3 gravity and be subject to the pressure F=PS of gas straight up to pass through meter
Pressure when calculating gained, thus can accurately calculate startup and release safety interlocking in tank body 10, wherein P is gas pressure, S
For the bottom area of piston seat 32.From formula it can be seen that, it is to be ensured that pressure is sufficiently small to close to 0 in tank body, piston 3
Weight needs are light enough, but must have enough rigidity, piston rod when preventing operation error positive opening lid 7 at the same time
31 risks being interrupted, thus the material of piston 3 can select hard aluminium alloy, still, the material of piston 3 is not limited to
This, can make choice according to actual conditions, no longer repeat one by one here.
In conclusion the safety interlock that the utility model embodiment provides, for installation on pressure vessel, completely
Using mechanical interlocks, structure member is few, easy to operate, and complete according to piston rod falls, it is ensured that the band in pressure vessel
Body of calming the anger discharges completely, just releases safety interlocking, and safety opens quick operating valve, can effectively improve safety during operating pressure container
Property.The above embodiments are only illustrative of the principle and efficacy of the utility model, rather than limits the present invention.It is any
Those skilled in the art can all modify above-described embodiment or changed under the spirit and scope without prejudice to the utility model
Become.Therefore, such as those of ordinary skill in the art without departing from the utility model it is revealed spirit and technology
All equivalent modifications completed under thought or change, should be covered by the claim of the utility model.
Claims (6)
1. a kind of safety interlock, for installation on pressure vessel, the pressure vessel includes lid and tank body, the lid
Body is upper for the opening for being covered on the tank body and seals the tank body, is provided between the lid and the tank body and opens soon
Door gear, the basic structure of the quick-opening device are arranged on the flange of the lid and the end flange of opening, its feature exists
In the safety interlock includes cylinder body, end cap, piston and check plate, and the safety interlock is vertically installed at described
The top of end flange or sidepiece, the piston are arranged in the cavity of the cylinder body, and the piston includes piston rod and piston
Seat, the piston rod are arranged on the piston seat, and the end cap is covered on the cylinder body top, the end cap and the stop
The locking through hole walked for the piston rod is equipped with plate；The cylinder body is fixedly installed relative to the tank body, described to stop
Movable plate is fixedly installed relative to the lid, and an inlet channel is provided with the base outside the cavity of the cylinder body, described
Inlet channel is used to connect the cavity of the cylinder body and the tank body.
2. safety interlock as claimed in claim 1, it is characterised in that the institute of the perisporium of the piston seat and the cylinder body
It is clearance fit to state between the perisporium of cavity surrounding.
3. safety interlock as claimed in claim 2, it is characterised in that further include sealing ring, the upper end of the piston seat
Face is additionally provided with a circle card slot, and the sealing ring is arranged in the card slot.
4. safety interlock as claimed in claim 3, it is characterised in that exhaust hole, institute are additionally provided with the end cap
State exhaust hole and correspond to the sealing ring within the orthographic projection region of the vertical direction of the end cap.
5. the safety interlock as described in any one in Claims 1-4, it is characterised in that the material of the piston is
Hard aluminium alloy.
6. safety interlock as claimed in claim 1, it is characterised in that the end cap is fixed on institute by sealing ring bolt
State the upper end of cylinder body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720913413.8U CN207261649U (en) | 2017-07-26 | 2017-07-26 | Safety interlock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720913413.8U CN207261649U (en) | 2017-07-26 | 2017-07-26 | Safety interlock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207261649U true CN207261649U (en) | 2018-04-20 |
Family
ID=61927579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720913413.8U Active CN207261649U (en) | 2017-07-26 | 2017-07-26 | Safety interlock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207261649U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108895160A (en) * | 2018-07-20 | 2018-11-27 | 盐城市大明化工机械有限公司 | A kind of pressure vessel of pressure adjustable |
| CN109307073A (en) * | 2017-07-26 | 2019-02-05 | 宁波乐惠国际工程装备股份有限公司 | Safety interlock |
-
2017
- 2017-07-26 CN CN201720913413.8U patent/CN207261649U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109307073A (en) * | 2017-07-26 | 2019-02-05 | 宁波乐惠国际工程装备股份有限公司 | Safety interlock |
| CN108895160A (en) * | 2018-07-20 | 2018-11-27 | 盐城市大明化工机械有限公司 | A kind of pressure vessel of pressure adjustable |
| CN108895160B (en) * | 2018-07-20 | 2024-03-15 | 江苏大明生物工程装备有限公司 | Pressure-adjustable pressure container |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |