CN103674096B - Explosion isolation device - Google Patents
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- CN103674096B CN103674096B CN201210334514.1A CN201210334514A CN103674096B CN 103674096 B CN103674096 B CN 103674096B CN 201210334514 A CN201210334514 A CN 201210334514A CN 103674096 B CN103674096 B CN 103674096B
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Abstract
The invention belongs to flame-proof electric equipment field, and specifically related to a kind of explosion isolation device (1) with double flame-proof housing, it includes：First explosion-proof casing (2), it is used to accommodate electrical equipment；And second explosion-proof casing (3), the first explosion-proof casing (2) is arranged in the inner space of the second explosion-proof casing (3).The explosion insulation performance of for example, electrical equipment of transmitter with the explosion isolation device according to the present invention is greatly improved, so as to can be applied to require explosion-proof performance in higher use environment.In the case of the first explosion-proof casing (2) partly or entirely failure, further flame proof function can be realized by the second explosion-proof casing (3), so as to prevent the spark of inside electric appliance or blast from leaking into applications environment.
Description
Technical field
The present invention relates to a kind of explosion isolation device.
Background technology
At present, transmitter is more and more extensive in the application of industrial control field, its be mainly used in by the temperature of measured target,
The physical quantitys such as pressure, concentration, flow, liquid level are converted into available standards signal.Transmitter is in the field such as oil, chemical industry, weaving quilt
It is widely used, because oils, chemicals and fibrous material etc. are mostly and the transmitters with flammable dangerous goods
Supply electric current is generally required, thus electric fault occurs in the inside of transmitter unavoidably, in fact it could happen that spark or the situation of short circuit,
Therefore the transmitter applied to these fields must have explosion insulation performance, so that by the spark produced inside transmitter or short circuit etc.
Unsafe factor is fully enclosed in housing, prevents it from the outside that leaks into transmitter.
Flame proof transmitter of the prior art typically has single explosion-proof casing, and it is not too that it, which is only used for flame proof requirement,
In high environment, such as it is only used for 1st area or 2nd area in the danger zone classification grade that is divided according to International Electrotechnical Commission.
And in explosion insulation performance requirement very high application environment, such as in the danger zone classification divided according to International Electrotechnical Commission
In 0th area in grade, when single explosion-proof casing bursts or partial failure occurs in use, for surrounding environment
To be breakneck.Therefore, this transmitter with single explosion-proof casing can not meet application environment to flame proof sometimes
The high standards of energy.
Therefore, need in the prior art it is a kind of can improve explosion insulation performance be used for for example, electrical equipment of transmitter
Explosion isolation device so that electrical equipment can be used in the application environment stricter to explosion insulation performance requirement.
The content of the invention
The goal of the invention of the present invention be there is provided it is a kind of aim to solve the problem that or at least mitigate above-mentioned prior art in the presence of
The explosion isolation device of at least one shortcoming.
According to an aspect of the present invention there is provided a kind of explosion isolation device, it includes：First explosion-proof casing, it is used to accommodate
Electrical equipment；And second explosion-proof casing, the first explosion-proof casing is arranged in the inner space of the second explosion-proof casing.
Using the electrical equipment of for example, transmitter according to above-mentioned explosion isolation device of the invention due to double layer flame-proof
Housing, therefore with the explosion insulation performance improved, can be used in in explosion-proof requirement very high environment, even if in the first flame proof
Remain able to provide explosion prevention function by the second explosion-proof casing in the case of housing explosion-proof performance partial failure, so it can be used in
General electric apparatus for explosive atmospheres in the environment of not applicable high requirement of explosion proof.Therefore, using according to flame proof of the present invention
The electrical equipment of for example, transmitter of device can be used in the field that the explosion insulation performances such as oil, chemical industry, weaving require strict
In the collection and transmission that carry out various data and information.
Brief description of the drawings
, will more easily by the description to the embodiment part according to the present invention provided referring to the drawings
Understand the features and advantages of the present invention, in the accompanying drawings：
Fig. 1 is the perspective view for the decomposition for showing the explosion isolation device according to the present invention；
Fig. 2 is the longitudinal sectional view for showing the explosion isolation device according to the present invention.
Embodiment
Exemplary embodiment of the invention is described in detail with reference to the accompanying drawings.Description to illustrative embodiments
Merely for the sake of demonstration purpose, and it is definitely not to the present invention and its application or the limitation of usage.
As shown in figure 1, including the first explosion-proof casing 2 and the second explosion-proof casing 3, first according to the explosion isolation device 1 of the present invention
The inside of explosion-proof casing 2 has accommodation space, for accommodating electrical equipment for needing to carry out flame proof etc., such as accommodating circuit
Plate, connecting part etc. are possible to the electronic unit for producing spark or short circuit, and the first explosion-proof casing 2 is arranged on the second explosion-proof casing 3
Inner space in.First explosion-proof casing 2 includes housing section 21 and is arranged on the front end cap 22 on the top of housing section 21, its
In, housing section 21 can be formed in one part, and this is beneficial to the globality and sealing that keep explosion-proof casing.In addition, root
According to a preferred embodiment of the present invention, housing section 21 can be made up of two parts, i.e. the circumferential wall part of housing section 21 and setting
Rear end cap 23 in the bottom of circumferential wall part, is such as shown more clearly that in fig. 2.Housing section 21 is arranged to two compositions
Part can be conducive to installation of the electrical equipment of for example, circuit board, connecting part etc. into the first explosion-proof casing 2, particularly
When the first explosion-proof casing 2 has deeper depth, the explosion-proof casing of integral type will be difficult to bottom close to its inner chamber, so that difficult
So that circuit board, connecting part etc. are installed on the bottom of housing.And use split type first explosion-proof casing 2 then to install
Rear end cap 23 and the circumferential wall of housing section 21 are taken apart before the electrical equipments such as circuit board, connecting part, by for example, circuit
Circumferential wall part is assembled to rear end cap 23 by the electrical equipment of plate, connecting part etc. again after being installed on rear end cap 23
On, so as to realize circuit board, connecting part etc. to the installation of the bottom with the explosion-proof casing more deeply spent.
In the preferred embodiment of the first explosion-proof casing 2 with Split type casing portion 21 according to the present invention, front end
Cap 22 and rear end cap 23 are connected through a screw thread the circumferential wall that mode is attached to housing section 21.In order to ensure the first flame proof shell
The sealing of body 2, in rear end, the joint of cap 23 and the circumferential wall of housing section 21 is provided with seal 26.Equally, in front end
Joint between cap 22 and housing section 21 is provided with seal 25, so that it is guaranteed that between front end cap 22 and housing section 21
Tight seal, and thus limit what is be fully sealed between front end cap 22, the circumferential wall of housing section 21 and rear end cap 23
Space, for housing the electrical equipments such as circuit board, connecting part.Wherein, seal 25 and seal 26 preferably can be by
The sealing ring that the materials such as rubber, polytetrafluoroethylene (PTFE) are made, or can be fluid sealant.When being contained in the first explosion-proof casing 2
The electrical equipments such as circuit board, connecting part produce spark or occur explosion time, and the first explosion-proof casing 2 first seals spark or blast
Close inside it, it is to avoid spark explodes to external diffusion, so that it is guaranteed that the security of the outside of the first explosion-proof casing 2.
The front end cap 22 of first explosion-proof casing 2 can be integral type end cap, can also be as illustrated in fig. 2 by being threaded
Staged connecting portion 221, top plate 222 and top plate shackle member 223 assembling constitute.The lower end of staged connecting portion 221 passes through spiral shell
Line is connected to the circumferential wall of housing section 21, and the upper end of staged connecting portion 221 is assembled in one by screw thread and bottom plate shackle member 223
Rise, the top plate 222 for hermetically covering the top of staged connecting portion 221 is arranged on staged connecting portion 221 and top plate shackle member
Between 223., can be respectively in staged connecting portion 221 and top plate clamping in order to ensure the good sealing of front end cap 22
Joint between part 223 and the joint between top plate shackle member 223 and top plate 222 set seal 224 and sealing
Part 225, here, seal 224 and seal 225 can be by being made with seal 25 and the identical material of seal 26.
Further, the first explosion-proof casing 2 is additionally provided with cable introducing member 24, and cable introducing member 24 can be arranged on
On the circumferential wall of the front end cap 22 of first explosion-proof casing 2, rear end cap 23 or housing section 21, this can be according to practical application
Need optionally to be set.According in a preferred embodiment of the present invention, two cable introducing members 24 are arranged on
On the circumferential wall of the housing section 21 of one explosion-proof casing 2, and the outer wall of the circumferential wall from housing section 21 stretches out.Cable is introduced
Part 24 can be used for accessing cable to electrical equipments such as circuit board, the connecting parts in the first explosion-proof casing 2, so as to be
It provides power supply or transmission signal.Special cable introducing member 24 can provide good sealing for cable introducing portion, from
And the electrical equipment for for example, circuit board, connecting part etc. using the first explosion-proof casing 2 provides more preferable explosion insulation performance.
As shown in Fig. 2 according to the explosion isolation device 1 for transmitter of the present invention also including the second explosion-proof casing 3, second every
Quick-fried housing 3 has the volume bigger than the first explosion-proof casing 2, and the first explosion-proof casing 2 is contained in its inner space.The
Two explosion-proof casings 3 can have with the identical structure of the first explosion-proof casing 2, certainly, its structure can also be with the first explosion-proof casing 2
It is different.According to the present invention as in the embodiment illustrated in figures 1 and 2, the second explosion-proof casing 3 include enclosure body 31 and front ends
Lid 32, anterior end cap 32 is monolithic construction, passes through injection or molded one-shot forming.Certainly, anterior end cap 32 can also have
Such as the structure of the front end cap 22 of the first explosion-proof casing 2.Anterior end cap 32, which is connected through a screw thread, is attached to enclosure body 31, together
Reason, in order to ensure the good sealing of the second explosion-proof casing 3, can set in anterior end cap 32 and the joint of enclosure body 31
Put seal.In addition, the enclosure body 31 of the second explosion-proof casing 3 can also have the phase of housing section 21 with the first explosion-proof casing 2
Same structure, i.e. enclosure body 31 can be made up of circumferential wall part and rear portion end cap, and rear portion end cap can be connected through a screw thread
Mode is assembled in the circumferential wall part of enclosure body 31, and preferably can enclosure body 31 circumferential wall part with after
Seal is set between portion's end cap., can be by the way that rear portion end cap be pulled down by setting the enclosure body 31 with rear portion end cap
The various electrical equipments being arranged in the second explosion-proof casing 3 are operated, and be conducive to the second explosion-proof casing 3 wiring and
Other associative operations.
As illustrated in fig. 1 and 2, the second explosion-proof casing 3 also includes the cable being arranged in anterior end cap 32 or enclosure body 31
Introducing portion 34, cable introducing portion 34 stretches out from the outer wall of anterior end cap 32 or enclosure body 31, for cable to be introduced into the
The inside of two explosion-proof casings 3, so as to provide power supply or transmission letter for electrical equipments such as the transmitters in the second explosion-proof casing 3
Number.It should be noted that the cable introducing portion 34 being arranged on the second explosion-proof casing 3 should be with being arranged on the first explosion-proof casing 2
On cable introducing member 24 be adapted, to enable cable to be smoothly through the second explosion-proof casing 3 and the first explosion-proof casing 2
It is connected to the electrical equipment inside explosion-proof casing.In an embodiment according to the present invention, two cable introducing portions 34 are arranged on
On the circumferential wall of the enclosure body 31 of two explosion-proof casings 3.When the first explosion-proof casing 2 is contained in the second explosion-proof casing 3, first
Cable introducing member 24 on explosion-proof casing 2 is generally aligned with the cable introducing portion 34 on the second explosion-proof casing 3, consequently facilitating
Electrical equipment of the cable from outside for example, circuit board, connecting part etc. being introduced directly into the first explosion-proof casing 2.The
One explosion-proof casing 2 can be arranged in the second explosion-proof casing 3 by various modes known in the art, such as passes through bonding, weldering
Connect, bolt is fixed and the connected mode such as clamping is installed, so as to form the shell of transducer with double flame-proof housing.With basis
The electrical equipment of the double flame-proof housing of the present invention can be used in requirement of explosion proof very high environment.Even if with flame proof work(
Can the first explosion-proof casing 2 producing spark or blast using process internal, first by the first explosion-proof casing 2 isolate spark or
Blast, even if having partial spark or blast to be leaked from the first explosion-proof casing 2, the second explosion-proof casing 3 can also be further by fire
Flower and blast are enclosed in the second explosion-proof casing 3.Therefore, the transmitter with double flame-proof housing can greatly improve pick-up
The explosion insulation performance of device, can be used in requirement of explosion proof very high field.
Although employing columnar explosion isolation device 1, and explosion isolation device 1 according to the embodiment shown in the drawings of the present invention
The first explosion-proof casing 2 and the second explosion-proof casing 3 there is similar shape substantially, but those of ordinary skill in the art can think
Arrive, explosion isolation device 1 can use other shapes, such as, can be the shapes such as cube, cone, spheroid, and explosion isolation device 1
The first explosion-proof casing 2 and the second explosion-proof casing 3 can have different shapes, such as, the second explosion-proof casing 3 can be cylinder
Shape, and the first explosion-proof casing 2 can be cube or rectangular shape, now only need to the cable on the first explosion-proof casing 2
Cable introducing portion 34 on the explosion-proof casing 3 of introducing member 24 and second is aligned substantially.
In addition, in the description of above-described embodiment, the explosion isolation device 1 for transmitter include double housing, i.e., first every
The quick-fried explosion-proof casing 3 of housing 2 and second, but can be including triple or more according to the explosion isolation device 1 for transmitter of the present invention
The housing of weight, the installation relation of each housing is as according to the explosion-proof casing 3 of the first explosion-proof casing 2 and second of the present invention
Installation relation, multiple housing is set in together, and higher application environment is required to flame proof it is possible thereby to meet.User can root
The shell tuple or the number of plies of transmitter are selected according to specific application demand.
Although during present invention is described by taking transmitter as an example, can be with according to the explosion isolation device of the present invention
For other electrical equipments, such as it can be used for the flame proof of some sensors, electronic circuit and similar device.In addition, in basis
The present invention explosion isolation device in, for the ease of observing the electrical equipment being contained in explosion isolation device, can by first every
The anterior end cap 32 of the explosion-proof casing 3 of front end cap 22 or second of quick-fried housing 2 is arranged to transparent.Further, using such as
In the case of split type front end cap 22 shown in Fig. 2, then top plate 222 can be arranged to transparent.
Below to making brief overview according to a preferred embodiment of the invention.
In an aspect in accordance with the invention, cable introducing member is provided with the first explosion-proof casing, and
Cable introducing portion is provided with two explosion-proof casings.Due to being respectively provided with cable on the first explosion-proof casing and the second explosion-proof casing
Introducing member and cable introducing portion, it is possible thereby to easily by for for the electrical equipment in explosion isolation device provide power supply and
The cable of transmission signal is incorporated into the inside of the first explosion-proof casing and the second explosion-proof casing, and can be special cable pathways
Tight sealing is provided, so that it is guaranteed that the explosion insulation performance of the first explosion-proof casing and the second explosion-proof casing.
Preferably, the first explosion-proof casing includes housing section and front end cap, and the second explosion-proof casing includes enclosure body
With anterior end cap., can be in order to the manufacture and assembling of explosion isolation device by the way that explosion-proof casing is arranged into the form with lid.
According to a further aspect of the invention, cable introducing member is arranged on the circumferential wall of the housing section of the first explosion-proof casing
On, cable introducing portion is arranged on the circumferential wall of the enclosure body of the second explosion-proof casing.The cable being arranged on circumferential wall is introduced
Part and cable introducing portion can be such that the access of cable more facilitates, and advantageously in the stability of anti-electrical equipment.
Preferably, when the first explosion-proof casing is arranged in the second explosion-proof casing, cable introducing member and cable introducing portion
Rough alignment.The cable formed in cable introducing member and the second explosion-proof casing on the first explosion-proof casing of rough alignment is introduced
Portion can make cable have most short length between the first explosion-proof casing and the second explosion-proof casing, it is possible thereby to save cable use
Amount, and be conducive to providing good sealing at cable access.
According to a further aspect of the present invention, the housing section of the first explosion-proof casing also includes rear end cap.It is preferred that
Ground, rear end cap is connected through a screw thread mode and is assembled on the circumferential wall of housing section.The housing section of first explosion-proof casing is set
Into rear end cap and circumferential wall two parts advantageously in the installation and fixation of the electrical equipments such as circuit board, connecting part, this is right
It is advantageously, because depth too big shell of transducer will be not easy for the first explosion-proof casing with larger depth
From inside close to the bottom wall of shell of transducer, housing is fixed to so as to be difficult to install the electrical equipments such as circuit board, connecting part
Bottom wall on.Can electrically it be set by pulling down bottom wall, and then by circuit board, connecting part etc. according to the shell of transducer of the present invention
It is standby to be installed on bottom wall.
According to the still another aspect of the present invention, housing section and the front end cap of the first explosion-proof casing are connected through a screw thread mode
It is assembled together.Housing section and this connected mode of front end cap can effectively ensure that sealing between the two, thus
It may insure the explosion insulation performance of transmitter in itself.Preferably, the joint between housing section and front end cap is provided with sealing
Part, so as to provide tighter sealing therebetween, thus provided for the explosion-proof casing of flame proof first further improve every
Quick-fried performance.It is further preferred that seal can be sealing ring or fluid sealant.
According to another aspect of the present invention, the front end cap of the first explosion-proof casing includes screwed staged
Connecting portion, top plate and top plate shackle member, the bottom of staged connecting portion are connected through a screw thread mode and are assembled to the first explosion-proof casing
Housing section, the top of staged connecting portion is connected through a screw thread mode with top plate shackle member and is assembled together, and top plate is assemblied in
Between staged connecting portion and top plate shackle member.By molding or stamping forming monomer-type end cap due to moulding process without
, can be using the split type front end cap according to the present embodiment, front end cap when can meet some high-level requirement of explosion proof
Each part between using threaded connection disclosure satisfy that requirement of the shell of transducer to explosion-proof performance.In addition, split type
Front end cap each part can use different materials, such as can be used by the big top of potential impact
The bigger material of intensity, and the relatively smaller material of intensity can be used by the side wall of the less front end cap of potential impact,
It is possible thereby to each building block of different material manufacture front end caps be used according to actual needs, so as to save material
Cost.
According to another aspect of the present invention, between staged connecting portion and housing section joint, connect in staged
Joint between socket part and top plate shackle member and the joint between top plate and top plate shackle member are respectively arranged with sealing
Part.Seal is set to improve the sealing effectiveness of thread seal at each thread engaging position, so as to strengthen transmitter enclosure
The explosion insulation performance of body, thus lifts its explosive-proof grade.Preferably, seal can be sealing ring or fluid sealant.
According to the still another aspect of the present invention, the enclosure body of the second explosion-proof casing also includes rear portion end cap.Preferably, after
Portion's end cap is connected through a screw thread mode and is assembled on the circumferential wall of enclosure body.Enclosure body includes the second flame proof of rear portion end cap
Then housing can be grasped by the way that rear portion end cap is pulled down from enclosure body to the electronic component inside the second explosion-proof casing
Make, so that operation more facilitates.Furthermore it is also possible to be operated by dismantling rear portion end cap to cable access section, such as
Cable access section is installed and set, cable is accessed by cable access section and cable access section is sealed etc..
According to a further aspect of the invention, explosion isolation device also include be located at the second explosion-proof casing outside one layer or
More layers explosion-proof casing.Multiple explosion-proof casing is had according to the explosion isolation device of the technical scheme of the present invention, thus, it is possible to enter one
Step improves the explosive-proof grade of for example, electrical equipment of transmitter using this explosion isolation device, can be used for explosion-proof
Energy is required in higher use environment.User can be selected according to specific requirement of explosion proof with appropriate tuple or the number of plies every
The explosion isolation device of quick-fried housing.
It is further preferred that can be used for housing circuit board for transmitter, wiring according to the explosion isolation device of the present invention
The various electrical equipments such as part.It can be used in using according to the transmitter of explosion isolation device of the present invention to flame proof requirement very
In high environment, its can effectively prevent in use spark, burning or blast to external diffusion, so as to play very
Good explosion-proof.
Although with reference to illustrative embodiments, invention has been described, but it is to be understood that the present invention does not limit to
The specific embodiment that Yu Wenzhong is described in detail and shown, in the case of without departing from claims limited range, ability
Field technique personnel can make various improvement or modification to the exemplary embodiment.
Claims (16)
1. a kind of explosion isolation device (1), including：
First explosion-proof casing (2), for accommodating electrical equipment；And
Second explosion-proof casing (3), first explosion-proof casing (2) is arranged in the inner space of second explosion-proof casing (3),
Wherein, first explosion-proof casing (2) includes housing section (21) and front end cap (22),
Wherein, the front end cap (22) of first explosion-proof casing (2) includes screwed staged connecting portion
(221), top plate (222) and top plate shackle member (223), the bottom of the staged connecting portion (221) is connected through a screw thread mode
The housing section (21) of first explosion-proof casing (2) is assembled to, the top plate shackle member (223) is threadably
It is assemblied in the top on the top of the staged connecting portion (221) and positioned at the top of the staged connecting portion (221)
Outside, the top plate (222) is assemblied between the staged connecting portion (221) and the top plate shackle member (223) and position
It is internal in the top plate shackle member (223).
2. explosion isolation device (1) as claimed in claim 1, wherein, cable introducing is provided with first explosion-proof casing (2)
Part (24), and it is provided with cable introducing portion (34) on second explosion-proof casing (3).
3. explosion isolation device (1) as claimed in claim 2, wherein, second explosion-proof casing (3) include enclosure body (31) and
Anterior end cap (32).
4. explosion isolation device (1) as claimed in claim 3, wherein, the cable introducing member (24) be arranged on described first every
On the circumferential wall of the housing section (21) of quick-fried housing (2), the cable introducing portion (34) is arranged on second explosion-proof casing
(3) on the circumferential wall of the enclosure body (31).
5. explosion isolation device (1) as claimed in claim 4, wherein, when first explosion-proof casing (2) be arranged on described second every
When quick-fried housing (3) is interior, the cable introducing member (24) and cable introducing portion (34) rough alignment.
6. explosion isolation device (1) as claimed in claim 3, wherein, the housing section (21) of first explosion-proof casing (2) is also
Including rear end cap (23).
7. explosion isolation device (1) as claimed in claim 6, wherein, rear end cap (23) mode of being connected through a screw thread is assembled
Onto the circumferential wall of the housing section (21).
8. explosion isolation device (1) as claimed in claim 3, wherein, the housing section (21) of first explosion-proof casing (2) with
Front end cap (22) mode of being connected through a screw thread is assembled together.
9. explosion isolation device (1) as claimed in claim 8, wherein, the housing section (21) and the front end cap (22) it
Between joint be provided with seal (25).
10. explosion isolation device (1) as claimed in claim 9, wherein, the seal is sealing ring or fluid sealant.
11. explosion isolation device (1) as claimed in claim 1, wherein, in the staged connecting portion (221) and the housing section
(21) joint between, the joint between the staged connecting portion (221) and the top plate shackle member (223) and
Joint between the top plate (222) and the top plate shackle member (223) is respectively arranged with seal (25,224,225).
12. explosion isolation device (1) as claimed in claim 11, wherein, the seal (25,224,225) is sealing ring or close
Sealing.
13. explosion isolation device (1) as claimed in claim 3, wherein, the enclosure body of second explosion-proof casing (3)
(31) rear portion end cap is also included.
14. explosion isolation device (1) as claimed in claim 13, wherein, the rear portion end cap is connected through a screw thread mode and is assembled to
On the circumferential wall of the enclosure body (31).
15. the explosion isolation device (1) as any one of claim 1-14, wherein, the explosion isolation device (1) also includes being located at
One layer of explosion-proof casing outside second explosion-proof casing (3).
16. the explosion isolation device (1) as any one of claim 1-14, wherein, the electrical equipment is used for transmitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210334514.1A CN103674096B (en) | 2012-09-11 | 2012-09-11 | Explosion isolation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210334514.1A CN103674096B (en) | 2012-09-11 | 2012-09-11 | Explosion isolation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103674096A CN103674096A (en) | 2014-03-26 |
| CN103674096B true CN103674096B (en) | 2017-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210334514.1A Active CN103674096B (en) | 2012-09-11 | 2012-09-11 | Explosion isolation device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108705983A (en) * | 2018-05-08 | 2018-10-26 | 苏州博众机器人有限公司 | A kind of explosion isolation device and AGV |
| CN109061604B (en) * | 2018-08-29 | 2021-06-08 | 燕山大学 | Explosion-proof shell of laser range finder |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202869523U (en) * | 2012-09-11 | 2013-04-10 | 艾默生过程控制流量技术有限公司 | An explosion-isolating device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5727110A (en) * | 1995-09-29 | 1998-03-10 | Rosemount Inc. | Electro-optic interface for field instrument |
| US6754067B2 (en) * | 2002-09-06 | 2004-06-22 | Mine Safety Appliances Company | Instrument assembly systems, housing and methods of mounting instrument assemblies |
| US8227692B2 (en) * | 2009-04-13 | 2012-07-24 | Precision Digital Corporation | Explosion-proof enclosure |
| CN201945327U (en) * | 2011-01-31 | 2011-08-24 | 嘉兴市立特电子科技有限公司 | Explosion-proof box of transmitter |
| CN201974330U (en) * | 2011-02-18 | 2011-09-14 | 李发起 | Explosion-proof instrument for measuring moisture content of crude oil |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202869523U (en) * | 2012-09-11 | 2013-04-10 | 艾默生过程控制流量技术有限公司 | An explosion-isolating device |
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| CN103674096A (en) | 2014-03-26 |
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