CN107237356A - A kind of mechanical fire prevention biological shielding automatic closing cover plate - Google Patents
A kind of mechanical fire prevention biological shielding automatic closing cover plate Download PDFInfo
- Publication number
- CN107237356A CN107237356A CN201710519669.5A CN201710519669A CN107237356A CN 107237356 A CN107237356 A CN 107237356A CN 201710519669 A CN201710519669 A CN 201710519669A CN 107237356 A CN107237356 A CN 107237356A
- Authority
- CN
- China
- Prior art keywords
- cover plate
- balancing weight
- fire prevention
- automatic closing
- biological shielding
- 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.)
- Pending
Links
- 230000002265 prevention Effects 0.000 title claims abstract description 31
- 230000005540 biological transmission Effects 0.000 claims abstract description 24
- 230000008018 melting Effects 0.000 claims description 9
- 238000002844 melting Methods 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- 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 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000002955 isolation Methods 0.000 abstract description 6
- 230000005855 radiation Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 6
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
- E02D29/14—Covers for manholes or the like; Frames for covers
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
- E02D29/14—Covers for manholes or the like; Frames for covers
- E02D29/1418—Covers for manholes or the like; Frames for covers with implements to assist in lifting, e.g. counterweights, springs
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
- E02D29/14—Covers for manholes or the like; Frames for covers
- E02D29/1427—Locking devices
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
Abstract
The present invention relates to a kind of mechanical fire prevention biological shielding automatic closing cover plate, including support, transmission mechanism, cover plate, balancing weight and fuse；The transmission mechanism is arranged on support, and the cover plate, balancing weight are arranged on the transmission mechanism, and is connected between the cover plate and balancing weight by transmission mechanism, and the cover plate is locked at the upper end of the support by fuse.The present invention has in nuclear facilities etc. under the conditions of radiation, fireproof, independent of motor or crane operation, but relies on the structure design of physical characteristics of materials to realize mechanically automatic closing, so as to realize the effect of fire prevention isolation.
Description
Technical field
The present invention relates to fire equipment technical field, more particularly to a kind of mechanical fire prevention biological shielding automatic closing cover
Plate.
Background technology
Under conditions of the radiation of the nuclear facilities such as nuclear power plant, fuel treatment factory and fire-preventive environment, in order to realize that fire prevention will
Ask, it usually needs closing isolation is carried out to some building channels or hole of factory building.
Under normal circumstances, because fire equipment needs to have the performance of radiation proof, therefore, building channel or hole are sealed
The weight of cover plate must be very big, typically can reach 500kg to 1500kg.It is required to for the heavy cover plate of this kind of comparison by making
Opened and closed with motor or crane, and motor is installed or using crane lifting cover plate respectively to outside confession
Electricity, crane operation space and personnel's operating condition propose restrictive condition, for example, need spacious crane operation environment and
Radiation proof high temperature-proof processing is carried out to operating personnel, therefore adds the complexity of nuclear facilities internal structure, and operation maintenance
Workload is also greatly increased, or even it is difficult to auxiliary facility be installed, so as to cause the limitation of application under some field conditions.
If shielding and fire-proof function can be realized by the design of cover plate itself, so as to reduce to outside auxiliary facility
Dependence, then be greatly improved its applicability.
The content of the invention
Based on this, it is an object of the invention to overcome the deficiencies of the prior art and provide one kind nuclear facilities etc. have radiation,
Under the conditions of fireproof, independent of motor or crane operation, but rely on the structure design of physical characteristics of materials to realize by machine
The fire-proof shield cover plate that tool mode is closed automatically, so as to realize the effect of fire prevention isolation.
To achieve these goals, the technical solution adopted by the present invention is：
A kind of mechanical fire prevention biological shielding automatic closing cover plate, including support, transmission mechanism, cover plate, balancing weight and
Fuse；The transmission mechanism is arranged on support, and the cover plate, balancing weight are arranged on the transmission mechanism, and described
It is connected between cover plate and balancing weight by transmission mechanism, the cover plate is locked at the upper end of the support by fuse.
Thus, mechanical fire prevention biological shielding automatic closing cover plate of the present invention, has in nuclear facilities etc. and radiates, prevents
Under conditions of fire, independent of motor or crane operation, but the structure design of physical characteristics of materials is relied on, cover plate passes through fuse
The top of support is locked at, when occurring the condition of a fire, air themperature rise causes fuse to melt, and cover plate is automatic in the presence of deadweight
Hole is closed, so as to realize the effect of fire prevention isolation.In addition, the mechanical fire prevention biological shielding automatic closing cover plate of the present invention leads to
The other end crossed in support sets balancing weight, so as to operate cover plate with the external force of very little, with very high flexibility.
Further, the transmission mechanism includes being arranged on the cover plate rotate gear of pedestal lower end, is arranged on pedestal upper end
Balancing weight rotate gear, the driving chain for connecting cover plate rotate gear and balancing weight rotate gear, with cover plate turning gear
Take turns the cover plate cursor being coaxially disposed and the balancing weight cursor being coaxially disposed with balancing weight rotate gear.By limiting herein
It is fixed, using transmission mechanism connecting cover plate and balancing weight, power when advantageously reducing cover plate lifting and falling.
Further, the dorsal part of the cover plate is fixed on the outside of the cover plate cursor end, and the balancing weight is fixed
Outside in the balancing weight cursor end.By limiting herein, be conducive to keeping the balance of transmission mechanism.
Further, the pedestal upper end side is provided with the first projection, the first projection and is provided with first through hole；The cover plate
The end of cursor is provided with the second projection, the second projection and is provided with the second through hole；Pass through between the cover plate and the support
Fuse is each passed through first through hole and the second through hole fixes locking.By limiting herein, be conducive to the connection of cover plate and support
More convenient, once fuse melts, cover plate is easily with regard to that can depart from support.
Further, the fuse is low melting point temperature-conditioned metal pin.By limiting herein, Air Temperature is advantageously ensured that
When degree is increased to certain limit, fuse can melt in time；Further, since the weight of cover plate itself utilizes metal than larger
Pin is conducive to strengthening the bearing capacity of fuse.
Further, the cover plate is the steel barricade with fireprotection layer.By limiting herein, be conducive to improving cover plate
Fire protecting performance.
Further, the dorsal part of the cover plate is provided with draw ring.By limiting herein, be conducive to facilitating the pull-up of cover plate.
Further, the support is the vertical structure of cubic framework.By limiting herein, be conducive to assembling transmission mechanism
And cover plate, balancing weight.
Brief description of the drawings
Fig. 1 is the locking state schematic diagram of the mechanical fire prevention biological shielding automatic closing cover plate of the present invention；
Fig. 2 is the half-open position schematic diagram of the mechanical fire prevention biological shielding automatic closing cover plate of the present invention；
Fig. 3 is the closed mode schematic diagram of the mechanical fire prevention biological shielding automatic closing cover plate of the present invention.
Embodiment
To further illustrate each embodiment, the present invention is provided with accompanying drawing.These accompanying drawings are the invention discloses the one of content
Point, it is mainly to illustrate embodiment, and can coordinate the associated description of specification to explain the operation principles of embodiment.Coordinate ginseng
These contents are examined, one of ordinary skill in the art will be understood that other may obtain embodiment and advantages of the present invention.
Please refer to Fig. 1, Fig. 2 and Fig. 3, wherein, Fig. 1 is mechanical fire prevention biological shielding automatic closing cover plate of the invention
Locking state schematic diagram；Fig. 2 is the half-open position schematic diagram of mechanical fire prevention biological shielding automatic closing cover plate of the invention；Figure
3 be the closed mode schematic diagram of mechanical fire prevention biological shielding automatic closing cover plate of the invention.
A kind of mechanical fire prevention biological shielding automatic closing cover plate, including support 10, transmission mechanism 20, cover plate 30, counterweight
Block 40 and fuse 50；The transmission mechanism 20 is set over the mount 10, and the cover plate 30, balancing weight 40 are arranged at described
It is connected on transmission mechanism 20, and between the cover plate 30 and balancing weight 40 by transmission mechanism 20, the cover plate 30 passes through
Fuse 50 is locked at the upper end of the support 10.
Assemble for convenience in transmission mechanism 20, cover plate 30, balancing weight 40 and fuse 50, the present embodiment, the branch
Frame 10 is the vertical structure of cubic framework.
The transmission mechanism 20 includes being arranged on the cover plate rotate gear 21 of the lower end of support 10, is arranged on the upper end of support 10
Balancing weight rotate gear 22, driving chain 23 and cover plate for connecting cover plate rotate gear 21 and balancing weight rotate gear 22
Cover plate cursor 24 that rotate gear 21 is coaxially disposed and the balancing weight cursor being coaxially disposed with balancing weight rotate gear 22
25。
Preferably, in order that obtaining more steady stress, the cover plate rotate gear 21 of the present embodiment when transmission mechanism 20 works
Number be two, correspondingly, the balancing weight rotate gear 22, the number of driving chain 23 also be two.In addition, the lid
Plate cursor 24 includes two cross bars in above two montants of two montants and connection and centre position, and the balancing weight turns
Swing arm 25 also includes two cross bars in above two montants of two montants and connection and centre position.And, it is preferable that institute
The length of cover plate cursor 24 is stated as the length of the balancing weight cursor 25.
The dorsal part of the cover plate 30 is fixed on the outside of the end of cover plate cursor 24, and the balancing weight 40 is fixed on institute
State the outside of the end of balancing weight cursor 25.In the present embodiment, in order to reduce power when cover plate 30 is lifted, while in fuse 50
The gravity fall of itself can be utilized again by melting back shroud 30, it is preferable that keep balancing weight 40 relative to balancing weight rotate gear
22 torque is slightly less than torque of the cover plate 30 relative to cover plate rotate gear 21.
Preferably, the cover plate 30 is bolted on the cover plate cursor 24.Also, the cover plate 30 is band
There is the steel barricade of fireprotection layer.In addition, in order to more facilitate lifting cover plate 30, the dorsal part of the cover plate 30 is provided with draw ring 31.
Specifically, the upper end side of support 10 is provided with the first projection 11, the first projection 11 and is provided with first through hole；It is described
The end of cover plate cursor 24 is provided with the second projection 26, the second projection 26 and is provided with the second through hole；The cover plate 30 with it is described
First through hole is each passed through by fuse 50 between support 10 and the second through hole is fixed and locked.In addition, in the present embodiment due to
Cover plate cursor 24 includes two montants, and correspondingly, first projection 11, the number of the second projection 26 are preferably two pieces.
In addition, the fuse 50 is low melting point temperature-conditioned metal pin.Because the weight of cover plate itself is than larger, this implementation
In example, it is preferable that the diameter of the low melting point temperature-conditioned metal pin can meet 800kg to 1200kg cover plate in more than 16mm
The intensity requirement of weight locking, in practice can also be according to the chi of the weight of cover plate 30 to low melting point temperature-conditioned metal pin in engineering
The adjustment of little progress row suitably.
Wherein, support 10 of the invention is vertically installed on the platform of the building channel of the occasions such as nuclear power plant or hole.
Illustrate the operation principle of the mechanical fire prevention biological shielding automatic closing cover plate of the present invention below：
In normal conditions, cover plate 30 is in an open position, i.e., perpendicular to 90 ° of ground is installed, pass through two low melting point controls
Cover plate 30 is locked by warm metal pin with support 10.
When the condition of a fire occurs for region, air themperature is persistently raised, when environment temperature reaches 75 DEG C, and the two of locking cover plate 30
Individual low melting point temperature-conditioned metal pin will melt, the thawing time between 60 seconds to 120 seconds, now, work of the cover plate 30 in deadweight
Drive balancing weight 40 to rotate with lower automatic whereabouts, and by transmission mechanism 20, building channel or hole are fallen under last cover plate 30
Top and the building channel or hole is completely covered so that realize fire prevention isolation effect.
After having handled the condition of a fire and having ensured safety, technical staff is lifted cover plate 30 by the draw ring 31 on cover plate 30 again
To original position, and ressemble two low melting point temperature-conditioned metal pins cover plate 30 is locked with support 10.Wherein, by
Balancing weight 40 is provided with the opposite side in support 10, and balancing weight 40 is smaller relative to the torque of balancing weight rotate gear 22
In torque of the cover plate 30 relative to cover plate rotate gear 21, therefore it may only be necessary to the lifting of the external force of very little just operable cover plate 10.
Compared with prior art, mechanical fire prevention biological shielding automatic closing cover plate of the present invention, in nuclear facilities etc.
Under the conditions of radiation, fireproof, independent of motor or crane operation, but the structure design of physical characteristics of materials is relied on, lid
Plate is locked at the top of support by fuse, when occurring the condition of a fire, and air themperature rise causes fuse to melt, and cover plate is in deadweight
In the presence of it is automatic close hole, so as to realize the effect of fire prevention isolation.In addition, the mechanical fire prevention biological shielding of the present invention is certainly
Dynamic cover plate of closing sets balancing weight by the other end in support, so as to operate cover plate with the external force of very little, with very
High flexibility.
Embodiment described above only expresses the several embodiments of the present invention, and it describes more specific and detailed, but simultaneously
Can not therefore it be construed as limiting the scope of the patent.It should be pointed out that coming for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Scope.
Claims (8)
1. a kind of mechanical fire prevention biological shielding automatic closing cover plate, it is characterised in that：Including support, transmission mechanism, cover plate, match somebody with somebody
Pouring weight and fuse；The transmission mechanism is arranged on support, and the cover plate, balancing weight are arranged at the transmission mechanism
On, and be connected between the cover plate and balancing weight by transmission mechanism, the cover plate is locked at the branch by fuse
The upper end of frame.
2. mechanical fire prevention biological shielding automatic closing cover plate according to claim 1, it is characterised in that：The driver
Structure includes being arranged on the cover plate rotate gear of pedestal lower end, is arranged on the balancing weight rotate gear of pedestal upper end, for connection cover
The driving chain of plate rotate gear and balancing weight rotate gear, the cover plate cursor being coaxially disposed with cover plate rotate gear and with
The balancing weight cursor that balancing weight rotate gear is coaxially disposed.
3. mechanical fire prevention biological shielding automatic closing cover plate according to claim 2, it is characterised in that：The cover plate
Dorsal part is fixed on the outside of the cover plate cursor end, and the balancing weight is fixed on the outer of the balancing weight cursor end
Side.
4. mechanical fire prevention biological shielding automatic closing cover plate according to claim 3, it is characterised in that：On the support
Hold side to be provided with the first projection, the first projection and be provided with first through hole；The end of the cover plate cursor is provided with the second projection,
The second through hole is provided with second projection；First through hole and second are each passed through by fuse between the cover plate and the support
Through hole fixes locking.
5. the mechanical fire prevention biological shielding automatic closing cover plate according to any one of Claims 1-4, it is characterised in that：
The fuse is low melting point temperature-conditioned metal pin.
6. mechanical fire prevention biological shielding automatic closing cover plate according to claim 5, it is characterised in that：The cover plate is
Steel barricade with fireprotection layer.
7. mechanical fire prevention biological shielding automatic closing cover plate according to claim 6, it is characterised in that：The cover plate
Dorsal part is provided with draw ring.
8. mechanical fire prevention biological shielding automatic closing cover plate according to claim 5, it is characterised in that：The support is
The vertical structure of cubic framework.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710519669.5A CN107237356A (en) | 2017-06-30 | 2017-06-30 | A kind of mechanical fire prevention biological shielding automatic closing cover plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710519669.5A CN107237356A (en) | 2017-06-30 | 2017-06-30 | A kind of mechanical fire prevention biological shielding automatic closing cover plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107237356A true CN107237356A (en) | 2017-10-10 |
Family
ID=59990807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710519669.5A Pending CN107237356A (en) | 2017-06-30 | 2017-06-30 | A kind of mechanical fire prevention biological shielding automatic closing cover plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107237356A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA914034A (en) * | 1972-11-07 | Daito Mfg. Co. | Fuse melt type damper device for intercepting flow through a duct | |
| CN101624852A (en) * | 2008-07-07 | 2010-01-13 | 吴雳鸣 | Balanced type interlocking hoisting hole safety cover plate |
| CN103244729A (en) * | 2012-02-08 | 2013-08-14 | 张琦 | Fire protection exhaust valve |
| CN205226519U (en) * | 2015-12-30 | 2016-05-11 | 东莞市博雅实业有限公司 | Smoke exhaust fireproof valve |
| CN207003490U (en) * | 2017-06-30 | 2018-02-13 | 台山平安五金制品有限公司 | A kind of mechanical fire prevention biological shielding automatic closing cover plate |
-
2017
- 2017-06-30 CN CN201710519669.5A patent/CN107237356A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA914034A (en) * | 1972-11-07 | Daito Mfg. Co. | Fuse melt type damper device for intercepting flow through a duct | |
| CN101624852A (en) * | 2008-07-07 | 2010-01-13 | 吴雳鸣 | Balanced type interlocking hoisting hole safety cover plate |
| CN103244729A (en) * | 2012-02-08 | 2013-08-14 | 张琦 | Fire protection exhaust valve |
| CN205226519U (en) * | 2015-12-30 | 2016-05-11 | 东莞市博雅实业有限公司 | Smoke exhaust fireproof valve |
| CN207003490U (en) * | 2017-06-30 | 2018-02-13 | 台山平安五金制品有限公司 | A kind of mechanical fire prevention biological shielding automatic closing cover plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171010 |