CN101216147A - Safety door lock for pressure container sealing - Google Patents
Safety door lock for pressure container sealing Download PDFInfo
- Publication number
- CN101216147A CN101216147A CNA2007103052949A CN200710305294A CN101216147A CN 101216147 A CN101216147 A CN 101216147A CN A2007103052949 A CNA2007103052949 A CN A2007103052949A CN 200710305294 A CN200710305294 A CN 200710305294A CN 101216147 A CN101216147 A CN 101216147A
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- CN
- China
- Prior art keywords
- door lock
- slide bar
- feeler lever
- seat
- handle
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- 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.)
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- Pressure Vessels And Lids Thereof (AREA)
Abstract
The invention relates to a safety door lock used for sealing a pressure container, which comprises a door lock. The invention is characterized in that the safety door lock further comprises a safety self-locking device. The safety self-locking device comprises a contact rod inserted into a contact rod seat that is threadedly connected with a door lock seat of the door lock, a spring sleeved around the contact rod, and stopping rings respectively arranged at the front and the back ends of the spring. The contact rod is positioned on the axial line of the inner hole of the contact rod seat and coaxial to the guide hole of the door lock. An eject rod is supported against the back end of the contact rod and inserted into a top cover relative to the contact rod. The top cover is fixedly connected with a frame, with a sealing gasket sandwiched therebetween. The contact rod is sized to fit well with the groove at the head part of a slide rod. The invention has the advantages of smart design, simple structure, independent operation of the self-locking mechanism, and high safety.
Description
Technical field
The present invention relates to a kind of door lock, relate in particular to a kind of safety door latch that is used for sealing for pressure vessels.
Background technique
Pressurized container on the existing market, especially for medical dressing, vessel, the Sterilizers of article such as medicine and operating theater instruments, the general high pressure steam that adopts the clean water heating that is pre-applied to the sterilizing chamber to produce the sterilization demand, article are sterilized, pressure in this mode pressurized container is higher, therefore very high to its door lock sealing requirements, present most of pressurized container door lock all is to adopt a kind of rotary door lock, as Chinese patent: 200420021743.9 disclosed a kind of door locks that are used for sealing for pressure vessels, though this door lock door lock (Chinese patent: 90205342.6 disclosed a kind of dull and stereotyped seal arrangements that have the transmission paw) than before, good airproof performance, easy to operate and appearance looks elegant, but all do not mention foolproof apparatus in these patented technologies, pressurized container does not have foolproof apparatus, when reservoir pressure rises, if operate miss, or mechanical failure, the door accident of pressurized container is opened, can cause the material of pressurized container inside to be gone out, cause the loss that brings personnel or property, consequence is very serious.
Summary of the invention
The present invention overcomes above-mentioned deficiency, purpose is to provide a kind of safety door latch that is used for sealing for pressure vessels, this door lock has foolproof apparatus, and is simple in structure, safe, and self-locking mechanism is complete independent operating, the power that self-locking needs is directed to controlling object, does not rely on other any external energy or control command, therefore can not be interfered, reliability is very high, has solved the deficiencies in the prior art part.
The present invention achieves the above object by the following technical programs: a kind of safety door latch that is used for sealing for pressure vessels, comprise door lock, be characterized in comprising and also be provided with a foolproof apparatus, described foolproof apparatus comprises a feeler lever, feeler lever is located in the feeler lever seat, the door lock seat scyewed joint of feeler lever seat and door lock, be arranged with a spring on the feeler lever, the front and back of spring are arranged with back-up ring, back-up ring, feeler lever in the feeler lever seat on the axially bored line, with the pilot hole of door lock on same axis, push rod withstands on the feeler lever rear end, push rod is located among the top cover, and is corresponding with feeler lever, and top cover connects by screw with seat, top cover and seat therebetween sealing gasket, push rod is in the sealing gasket left side, and seat is provided with the pipeline connection mouth, and pipeline connects and is communicated with container intracavity; The slide bar head of door lock is provided with groove, and the groove size of the slide bar head of feeler lever and described door lock is complementary.
Described door lock comprises one handle, is with a guiding groove, a fixing rod on the handle; One lock body, in a long-channel is arranged, there is a L shaped opening at surperficial corresponding long-channel place, the mid-slide bar of long-channel is fixed a slide bar handle on the slide bar, the slide bar handle stretches out the L shaped opening of surface of lock body, the head of slide bar is made up of two arcs; One lock, centre are with cylindrical lockhole, and lockhole and slide bar are on same axis; Described handle is fixed on the lock body by the fixing rod on it, and described slide bar negative winding stem inserts in the guiding groove of handle.
Described handle also has corresponding two arc grooves on the outside.
Beneficial effect of the present invention: the present invention increases foolproof apparatus on the basis of original door lock, foolproof apparatus designs very ingeniously, not only simple in structure, with original door lock one integrated mass, and the power that self-locking needs is directed to container inner high voltage steam, do not rely on other any external energy or control command, and self-locking mechanism is complete independent operating, can not be interfered, Security is very high.
Description of drawings
Fig. 1 is the structural representation of the safety door latch that is used for sealing for pressure vessels in the embodiment of the invention 1;
Fig. 2 is the structural representation after Fig. 1 removes handle and lock;
Fig. 3 is 2 side view;
Fig. 4 is the sectional view of door body among Fig. 2;
Fig. 5 is the structural representation of foolproof apparatus;
Fig. 6 is the structural representation after the foolproof apparatus self-locking.
Embodiment
The present invention is further elaborated by embodiment below in conjunction with accompanying drawing:
Embodiment 1: as shown in the figure, a kind of safety door latch that is used for sealing for pressure vessels comprises door lock, foolproof apparatus, and described door lock comprises one handle 2, is with a guiding groove 3, a fixing rod 4 on the handle; Handle can have different shape, to meet different demands; One lock body 1, in a long-channel is arranged, there is a L shaped opening 8 at surperficial corresponding long-channel place, the mid-slide bar 13 of long-channel is fixed a slide bar handle 7 on the slide bar 13, slide bar handle 7 stretches out the L shaped opening on lock body 1 surface, the head of slide bar 13 is made up of two arcs 28,29; One lock 9, centre are with cylindrical lockhole 14, and lockhole 14 and slide bar 13 are on same axis; Described handle 2 is fixed on the lock body 1 by the fixing rod on it 4, and described slide bar handle 7 heads insert in the guiding groove of handle 2, and described handle also has corresponding three arc grooves on the outside.The length of door body, thickness can change to adapt to different pressurized containers with width.
Described foolproof apparatus comprises a feeler lever 27, feeler lever 27 is located in the feeler lever seat 25, door lock seat 9 scyewed joint of feeler lever seat 25 and door lock, feeler lever seat 25 is fixed on pressure by screw 17 to be held on the doorframe, be arranged with a spring 24 on the feeler lever 27, spring 24 front and back are arranged with back-up ring 15, back-up ring 18, feeler lever in feeler lever seat 10 on the axially bored line, with the pilot hole 15 of door lock on same axis, push rod 18 withstands on feeler lever 27 rear ends, the axle of push rod 18 cooperates with the hole of top cover 19, and stretch out top cover, at the push rod axial direction, corresponding feeler lever 27, be located in the top cover 19, top cover 19 connects by screw with seat 21, a top cover 19 and seat 21 therebetween rubber gaskets 20, and push rod 18 is on the left of sealing gasket, seat 21 is provided with pipeline connection mouth 22, and pipeline connects and is communicated with container intracavity; The slide bar head of door lock is provided with groove 16, and feeler lever 27 is complementary with groove 16 sizes of the slide bar head of described door lock.
After the installation, the door body links to each other with container by door-hinge, sealing cover is connected by being threaded with the door body, and the door lock seat links to each other with container, and the position of door lock seat is, when door lock is tight, when promptly door was parallel with container end face, the door slide bar inserted door lock seat lockhole, and the door lock seat is vertical with the door body, Prssure lock is fixed a position, makes the pilot hole on the axes alignment door supporting base of door lock.The slide bar handle is fixedlyed connected with slide bar, can drive slide bar and slide at Men Tizhong, rotation.Door handle links to each other with the door body by stationary axle, and steering channel matches with the slide bar handle.
Prssure lock is made up of push rod 18, top cover 19, sealing gasket 20, seat 21, feeler lever seat 25, feeler lever 27, spring 24 and back-up ring 23,26; Top cover 19 connects by screw with seat 21, and therebetween sealing gasket 20, push rod 18 be in sealing gasket 20 left sides, spool the cooperating of push rod 18 with the hole of top cover 19, and stretch out top cover 19, and at push rod 18 axial directions, corresponding feeler lever 27.On the axially bored line, feeler lever seat 25 connects with door lock seat 9 by screw thread feeler lever 27 in feeler lever seat 25, and with pilot hole 15 on same axis.Back-up ring 26 is housed on feeler lever, to feeler lever 27 sports limiting of turning right, is with spring 17 on the right side of feeler lever, back-up ring 23 is equipped with on the right side of spring 17, prevents that spring 17 breaks away from, simultaneously to feeler lever 27 sports limiting of turning left.The pipeline connection mouth 22 of seat 21 connects by pipeline and is communicated with container intracavity.
The action of door lock is as follows: door handle 2 is that the axle center turns clockwise with fixing rod 4, and guiding groove 3 drives slide bar handle 7, and then drives slide bar 13, the motion of under the effect of steering channel 8, turning right, and up to the corner that arrives steering channel 8, slide bar 13 can be inserted into lockhole 14.
Be rotated further door handle 2 again, guiding groove 3 drives slide bar handle 7, and under the effect of steering channel 8, door slide bar 13 is an axle with its axis, down rotates.Be the state that the left side is lower than the right up to arc 28 edges, finish the action of locking a door.When slide bar 13 down rotates, because the elasticity of the seal ring on the sealing cover, with Men Dingxiang in the other direction, then the part in the middle of the slide bar 13 head arcs sticks together with the hole wall of lockhole 14, after slide bar 13 changes, matching with the lockhole wall in the edge section that becomes arc, is equivalent to the minimum place of a slide bar radius and becomes to the radius maximum is in the contact of lockhole wall, door-hinge will be pushed inward like this.Thereby drive the door body, and then the drive sealing cover pushes away the pretension of realization sealing cover inward.
After finishing the sealing action of door, the pressure in container begins to rise, and the pressure in the container is delivered to sealing gasket by the pipeline connection mouth of seat, by the distortion of sealing gasket, is delivered to push rod again, promotes push rod to left movement.Push rod promotes feeler lever again to left movement, feeler lever is extend in the groove of slide bar head go.Block slide bar, it can not be rotated.
If remove to rotate counterclockwise door handle this moment, door handle drives the slide bar handle and up moves, but because feeler lever has been stuck in the head of slide bar, slide bar can not rotate, so door handle also can't move.Thereby realize the safe self-locking of door.Avoided the people to open for misoperation causes door.Also can avoid the problem of mechanism self, throw off automatically, the door that causes is opened automatically.
Certainly after the pressure in the container reduced, the power that is delivered on the sealing gasket also reduced, and feeler lever moves right under the effect of spring restoring force, promoted push rod toward right motion, was reduced to 0 up to pressure, recovered.
The needed pressure of self-locking can be regulated by spring, i.e. the intensity of Regulation spring can be adjusted the setting pressure of self-locking.
Claims (4)
1. safety door latch that is used for sealing for pressure vessels, comprise door lock, it is characterized in that also including a foolproof apparatus, described foolproof apparatus comprises a feeler lever (27), feeler lever (27) is located in the feeler lever seat (25), door lock seat (9) scyewed joint of feeler lever seat (25) and door lock, be arranged with a spring (17) on the feeler lever (27), the front and back of spring (17) are arranged with back-up ring (15), back-up ring (18), feeler lever is in feeler lever seat (10) on the axially bored line, with the pilot hole (15) of door lock on same axis, push rod (18) withstands on feeler lever (27) rear end, push rod (18) is located among the top cover (19), and is corresponding with feeler lever (27), and top cover (19) connects by screw with seat (21), top cover (19) and seat (21) therebetween sealing gasket (20), push rod (18) is in the sealing gasket left side, and seat (21) is provided with pipeline connection mouth (22), and pipeline connects and is communicated with container intracavity; The slide bar head of door lock is provided with groove (16), and feeler lever (27) is complementary with groove (16) size of the slide bar head of described door lock.
2. a kind of safety door latch that is used for sealing for pressure vessels according to claim 1 is characterized in that described door lock comprises one handle (2), is with a guiding groove (3), a fixing rod (4) on the handle; One lock body (1), in a long-channel is arranged, there is a L shaped steering channel (8) at corresponding long-channel place, surface, the mid-slide bar of long-channel (13), fix a slide bar handle (7) on the slide bar (13), slide bar handle (7) stretches out the L shaped steering channel on lock body (1) surface, and the head of slide bar (13) is made up of two arcs (28), (29); One lock (9), centre are with cylindrical lockhole (14), and lockhole (14) and slide bar (13) are on same axis; Described handle (2) is fixed on the lock body (1) by the fixing rod on it (4), and described slide bar handle (7) head inserts in the guiding groove of handle (2).
3. a kind of safety door latch that is used for sealing for pressure vessels of stating according to claim 2 is characterized in that also having corresponding several arc grooves on the described handle outside.
4. a kind of safety door latch that is used for sealing for pressure vessels of stating according to claim 3 is characterized in that described several arc grooves are three arc grooves (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007103052949A CN100516628C (en) | 2007-12-30 | 2007-12-30 | Safety door lock for pressure container sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007103052949A CN100516628C (en) | 2007-12-30 | 2007-12-30 | Safety door lock for pressure container sealing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101216147A true CN101216147A (en) | 2008-07-09 |
| CN100516628C CN100516628C (en) | 2009-07-22 |
Family
ID=39622632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007103052949A Expired - Fee Related CN100516628C (en) | 2007-12-30 | 2007-12-30 | Safety door lock for pressure container sealing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100516628C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109084023A (en) * | 2018-09-18 | 2018-12-25 | 浙江工搪化工设备有限公司 | Pressure vessel for adjustable compression type glass lining equipment |
| CN110131584A (en) * | 2019-05-18 | 2019-08-16 | 张继美 | The safety conveying method of the contour dangerous chemical industry fluid of inflammability, highly corrosive |
-
2007
- 2007-12-30 CN CNB2007103052949A patent/CN100516628C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109084023A (en) * | 2018-09-18 | 2018-12-25 | 浙江工搪化工设备有限公司 | Pressure vessel for adjustable compression type glass lining equipment |
| CN110131584A (en) * | 2019-05-18 | 2019-08-16 | 张继美 | The safety conveying method of the contour dangerous chemical industry fluid of inflammability, highly corrosive |
| CN110131584B (en) * | 2019-05-18 | 2020-11-24 | 江苏广域化学有限公司 | Safety conveying method for high-risk chemical fluid with inflammability, high corrosivity and the like |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100516628C (en) | 2009-07-22 |
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Granted publication date: 20090722 Termination date: 20151230 |
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| EXPY | Termination of patent right or utility model |