CN110165584A - A kind of pressure-relief explosion-proof switchgear - Google Patents
A kind of pressure-relief explosion-proof switchgear Download PDFInfo
- Publication number
- CN110165584A CN110165584A CN201910574251.3A CN201910574251A CN110165584A CN 110165584 A CN110165584 A CN 110165584A CN 201910574251 A CN201910574251 A CN 201910574251A CN 110165584 A CN110165584 A CN 110165584A
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- China
- Prior art keywords
- center
- pressure
- disk
- relief explosion
- switchgear
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/025—Safety arrangements, e.g. in case of excessive pressure or fire due to electrical defect
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Pressure Vessels And Lids Thereof (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention discloses a kind of pressure-relief explosion-proof switchgears, including cabinet body, linking disk and capping disk；It is provided with top plate at the top of the cabinet body, there is the installing port for being communicated to the interior of the cabinet on the top plate；The linking disk setting is detachably connected at the installing port, and with the edge of the installing port, is provided with venthole on the linking disk；The top of the linking disk is arranged in the capping disk, and covers the venthole, and the edge of the capping disk is attached by elastic component with the disk that is connected.The present invention effectively can be evacuated and be drained to the high temperature and high pressure gas in switchgear, play the role of quickly, timely pressure-relief explosion-proof, have excellent safety.
Description
Technical field
The present invention relates to electrical equipment technical field, especially a kind of pressure-relief explosion-proof switchgear.
Background technique
Switchgear is a kind of switchgear suitable for electricity consumption occasion, its main function is sent out in electric system
Electricity, transmission of electricity, distribution and electric energy are opened and closed, controlled and are protected during converting, and power plant, substation, stone are mainly used in
The various different occasions such as oiling work, metallurgical steel rolling, industry light industry textile industry, industrial enterprise and residential quarters, skyscraper.
Switchgear during use, interior unit cell model be circuit caused by various reasons short circuit, be switchgear most
Serious failure, electric arc generates fuel factor and pressure effect, if high temperature and high pressure gas cannot be when extremely short in narrow cabinet body
It is interior to be released effectively, it will cause switchgear and burst, injure personal safety.
Existing pressure relief device is that cover board is arranged at the top of switchgear, and one end of cover board is connected by a hinge in switchgear
On, the other end is fixed by nylon screw, when short circuit accident occurs in switchgear, interior gas temperature and pressure in switchgear
It increasing, nylon screw melts because of the high-temperature gas in switchgear, and cover board impact is bounced pressure release by the high pressure gas in switchgear,
But this traditional pressure relief device is influenced by the size of the cover plate, often because pressure release passage is smaller, causes high temperature and high pressure gas
It cannot exclude that switchgear is caused to deform in time, or even the danger burst；In addition, this traditional pressure relief device is in nylon spiral shell
In this period that silk melts, the high temperature and high pressure gas in switchgear is further accumulated, when high temperature and high pressure gas accumulation is too fast,
Although imperial screw can occur not melt completely also, switchgear cannot bear the pressure of internal high temperature high pressure gas and occur quick-fried
Fried, even if nylon screw can be completely melt, high temperature and high pressure gas has accumulated a period of time in inside switch cabinet, and pressure is still
So very big, high temperature and high pressure gas can bounce cover board high speed at this time, cover board around hinge high speed rotation, it is easy to make hinge break,
To which cover board flies out, it is easy to accidentally injure staff, there are security risks；In addition, sealing joint strip can not be arranged at cover board frame
Etc close measure, be easier to that dust is made to enter high pressure compartment pollution high voltage electric conductor, influence built-in electrical insulation intensity, increase short circuit
Failure.
Summary of the invention
The purpose of this section is to summarize some aspects of the embodiment of the present invention and briefly introduce some preferable implementations
Example.It may do a little simplified or be omitted to avoid our department is made in this section and the description of the application and the title of the invention
Point, the purpose of abstract of description and denomination of invention it is fuzzy, and this simplification or omit and cannot be used for limiting the scope of the invention.
The problem of in view of above-mentioned and/or existing switchgear, propose the present invention.
Therefore, the one of purpose of the present invention is to provide a kind of pressure-relief explosion-proof switchgear, can be in switchgear
High temperature and high pressure gas is quickly and efficiently evacuated and is drained.
In order to solve the above technical problems, the invention provides the following technical scheme: a kind of pressure-relief explosion-proof switchgear comprising cabinet
Body, linking disk and capping disk；It is provided with top plate at the top of the cabinet body, has on the top plate and is communicated to the interior of the cabinet
Installing port；The linking disk setting is detachably connected at the installing port, and with the edge of the installing port, described
Venthole is provided on linking disk；The top of the linking disk is arranged in the capping disk, and covers the venthole, described
The edge of capping disk is attached by elastic component with the disk that is connected.
A kind of preferred embodiment as pressure-relief explosion-proof switchgear of the present invention, in which: the linking disk includes in first
Heart district and the first outer zone positioned at first center outer rim, first center is relative to first outer zone
It is recessed；The venthole is distributed in first center, and first center is matched with the internal diameter of the installing port, and embedding
Enter in the installing port；First outer zone is detachably connected by the edge of bolt and the installing port.
A kind of preferred embodiment as pressure-relief explosion-proof switchgear of the present invention, in which: the capping disk includes in second
Heart district and the second outer zone positioned at second center outer rim；Second center is relative to second outer zone
It is convex, form cavity；The outer diameter of second outer zone is less than first center, and in the pulling force effect of the elastic component
It is lower to be contacted with the upper surface of first center.
A kind of preferred embodiment as pressure-relief explosion-proof switchgear of the present invention, in which: the edge of second outer zone
It is provided with fixed block, the fixed block is connect by the elastic component with the linking disk.
A kind of preferred embodiment as pressure-relief explosion-proof switchgear of the present invention, in which: the upper table of first center
Face is provided with a pair of first free bearing, and the lower surface of second center is provided with the second hinge corresponding to first free bearing
Seat passes through connection bar connection between first free bearing and the second free bearing.
A kind of preferred embodiment as pressure-relief explosion-proof switchgear of the present invention, in which: the center of first center
Place is provided with reset Buffer Unit；The reset Buffer Unit includes the outer barrel being fixed on first center and wears
It is inserted in the inner cylinder that inside the outer barrel and upper end is exposed, the lower surface of the upper end of the inner cylinder and second center
It is flexibly connected.
A kind of preferred embodiment as pressure-relief explosion-proof switchgear of the present invention, in which: the outer barrel includes outer tube wall,
The inside of the outer tube wall has first passage, and the upper end of the outer tube wall has the first stop collar, and bottom has cylinder bottom, described
There is first through hole on first stop collar, there is the second through-hole on the cylinder bottom；The inner cylinder includes being matched with described first
The inner tube wall of stop collar internal diameter and the second stop collar positioned at the inner tube wall bottom, the upper end of the inner tube wall are pierced by described
First stop collar, the major diameter fit of second stop collar is in the internal diameter of the outer tube wall.
A kind of preferred embodiment as pressure-relief explosion-proof switchgear of the present invention, in which: the inside of the inner cylinder has
Downwardly open second channel, has the guide cylinder protruded into inside the second channel on the cylinder bottom, the guide cylinder it is interior
The third channel that portion has both ends penetrating；The second channel is internally provided with ball sealer, and the ball sealer is located at described lead
To the top of cylinder, and the outer diameter of the ball sealer is greater than the internal diameter of the third channel.
A kind of preferred embodiment as pressure-relief explosion-proof switchgear of the present invention, in which: on the inner sidewall of the guide cylinder
It is provided with vertical throttling channel.
A kind of preferred embodiment as pressure-relief explosion-proof switchgear of the present invention, in which: the following table of second center
Face is provided with track, and the two sides of the track are provided with guide chute, and the bottom of the track has to be connected with the guide chute
Logical cooperation sliding slot；The upper end of the inner cylinder is fixed with vertical outer boom, and the upper end of the outer boom, which has, corresponds to institute
The sliding block of guide chute is stated, the upper end of the outer boom passes through the cooperation sliding slot, and the sliding block is embedded in the guide chute
It is interior.
Beneficial effects of the present invention: the present invention effectively can be evacuated and be arranged to the high temperature and high pressure gas in switchgear
Let out, play the role of quickly, timely pressure-relief explosion-proof, have excellent safety.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment
Attached drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this
For the those of ordinary skill of field, without any creative labor, it can also be obtained according to these attached drawings other
Attached drawing.Wherein:
Fig. 1 is the scheme of installation of pressure relief mechanism.
Fig. 2 is the overall structure figure of the pressure-relief explosion-proof switchgear.
Fig. 3 is the chart at the bottom of and top structure figure of pressure relief mechanism.
Fig. 4 is the internal structure chart and fragmentary detail view of pressure relief mechanism installation diagram on the cabinet, pressure relief mechanism.
Fig. 5 is the sectional view of pressure relief mechanism.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, right with reference to the accompanying drawings of the specification
A specific embodiment of the invention is described in detail.
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, but the present invention can be with
Implemented using other than the one described here other way, those skilled in the art can be without prejudice to intension of the present invention
In the case of do similar popularization, therefore the present invention is not limited by the specific embodiments disclosed below.
Secondly, " one embodiment " or " embodiment " referred to herein, which refers to, may be included at least one realization side of the invention
A particular feature, structure, or characteristic in formula." in one embodiment " that different places occur in the present specification not refers both to
The same embodiment, nor the individual or selective embodiment mutually exclusive with other embodiments.
It referring to Fig.1~5, is one embodiment of the present of invention, this embodiment offers a kind of pressure-relief explosion-proof switchgear, energy
The high temperature and high pressure gas that enough effective, quick drain interior of the cabinet generate in a short time.
The pressure-relief explosion-proof switchgear includes cabinet body 100, and cabinet body 100 can use general switch cabinet in the prior art
Body, top are provided with horizontal top plate 101, and have the installing port 101a being communicated to inside cabinet body 100 on top plate 101, peace
Dress mouth 101a is circular through-hole.
The pressure-relief explosion-proof switchgear further includes the linking disk 200 and capping disk 300 being mounted at installing port 101a, linking
The setting of disk 200 is detachably connected at installing port 101a, and with the edge of installing port 101a, is connected on disk 200 and is provided with
Venthole 201a.The top of linking disk 200 is arranged in capping disk 300, and covers venthole 201a, covers the edge of disk 300
It is attached by elastic component 302a with disk 200 is connected.The present invention can will be connected disk 200 and cover the combination definition of disk 300
For pressure relief mechanism.
In its natural state, capping disk 300 can block venthole 201a, prevent dust from entering, and have protective action；When
After generating high temperature and high pressure gas in cabinet body 100, then covers the compression of disk 300 and automatically turn on, divulge information explosion-proof.
Specifically, linking disk 200 includes being located in the middle the first center 201 and positioned at 201 outer rim of the first center
The first outer zone 202.First center 201 is the panel of border circular areas, and the first outer zone 202 is the outer ring of border circular areas,
First center 201 is recessed relative to the first outer zone 202, forms " the storing region in place " of capping disk 300.
Venthole 201a is penetrating circular hole, and is provided with multiple, is distributed in 201 range of the first center.First
Center 201 is matched with the internal diameter of installing port 101a, and is embedded in installing port 101a downwards；First outer zone 202 passes through bolt
The edge of 202a and installing port 101a are detachably connected, convenient for installation and removal maintenance, the replacement of pressure relief mechanism.Therefore,
The edge distribution of installing port 101a has screw hole, corresponding perforation is distributed on the first outer zone 202.
The whole outer diameter of disk 300 is covered less than the first center 201, and above-mentioned " storing region in place " can be shelved on
Interior, capping disk 300 includes being located in the middle the second center 301 and the second outer zone positioned at 301 outer rim of the second center
302.Second center 301 is the panel of border circular areas, and the second outer zone 302 is the outer ring of border circular areas, the second center 301
It is convex relative to the second outer zone 302, when the upper surface of the second outer zone 302 and the first center 201 contacts, convex
Hollow cavity 303 can be collectively formed with the upper surface of the first center 201 in two centers 301.
The outer diameter of second outer zone 302 is less than the first center 201, and with first under the pulling force effect of elastic component 302a
The upper surface of center 201 contacts.Preferably, elastic component 302a uses extension spring or elastic string etc., the second outer zone 302
Convex fixed block 302b is provided on edge, fixed block 302b is connect by elastic component 302a with linking disk 200.Elastic component
The upper end of 302a is fixed with fixed block 302b, and lower end is fixed with the upper surface for being connected disk 200.
After generating high temperature and high pressure gas in cabinet body 100, air pressure increases in cabinet body 100, gas pass through venthole 201a into
Enter in cavity 303, and capping disk 300 is pushed to move upwards, realizes pressure release.After the completion of pressure release, the pulling force of elastic component 302a will be drawn
Dynamic capping disk 300 resets.The present invention can according to need the elastic component 302a of replacement varying strength, to change in cabinet body 100
Pressure release threshold value of warning, that is, gas could push capping disk 300 to occur only after air pressure increases to the threshold value in cabinet body 100
Movement.
Further, the upper surface of the first center 201 is provided with the first free bearing 201b of a pair, the second center 301
Lower surface is provided with the second free bearing of a pair 301a, each first free bearing 201b and corresponding second corresponding to the first free bearing 201b
Pass through connection bar 201c connection between free bearing 301a.Connection bar 201c is straight-bar structure, and the upper end and the first free bearing 201b are cut with scissors
It connects, lower end and the second free bearing 301a are hinged, and two connection bar 201c are parallel to each other.The setting of connection bar 201c can assist sealing
Shrouding disc 300 is run, and limits the stroke of its movement, convenient for opening and resetting storage.
Further, it is provided at the center of the first center 201 and resets Buffer Unit 203.Reset Buffer Unit 203
It is arranged and is not only able to guarantee that the opening process of capping disk 300 is unaffected, is rapidly completed and (to adapt to the sharply expansion of air pressure, drops
Low-risk), while can also ensure that capping disk 300 is slowly completed in reseting procedure, prevent electric arc high frequency, the frequency in the short time
The risk of numerous generation, therefore increase the opening time of capping disk 300, increase the period of pressure release, more safety.
Buffer Unit 203 is resetted to include the outer barrel 203a being fixed on the first center 201 and be interspersed in outer barrel
The lower surface activity of the exposed inner cylinder 203b in inside 203a and upper end, the upper end of inner cylinder 203b and the second center 301 connect
It connects.
Specifically, outer barrel 203a includes outer tube wall 203a-1, the inside of outer tube wall 203a-1 has first passage 203a-
The upper end of 2, outer tube wall 203a-1 have the first stop collar 203a-3 of a ring shape, and the bottom of outer tube wall 203a-1 has cylinder bottom
203a-4.The internal diameter of first stop collar 203a-3 is less than the internal diameter of outer tube wall 203a-1, in the ring segment of the first stop collar 203a-3
Multiple vertical first through hole 203a-31 are distributed with, multiple the second vertical through-hole 203a-41 are distributed on the 203a-4 of cylinder bottom.
Inner cylinder 203b includes being matched with the inner tube wall 203b-1 of the first stop collar 203a-3 internal diameter and positioned at inner tube wall
Second stop collar 203b-2 of the bottom 203b-1.The upper end of inner tube wall 203b-1 blocks, and the upper end is pierced by the first stop collar 203a-
It 3 and is connect with the lower surface of the second center 301, the second stop collar 203b-2 is annular, and major diameter fit is in outer tube wall 203a-
1 internal diameter forms fitting, and opposite slide can occur.The setting energy of first through hole 203a-31 and the second through-hole 203a-41
Enough guarantee that inner cylinder 203b is hindered relative to the sliding stroke of outer barrel 203a without air pressure.
Further, the inside of inner cylinder 203b has downwardly open second channel 203b-3, and on the 203a-4 of cylinder bottom
With the guide cylinder 203a-5 that can be inserted upwardly into inside second channel 203b-3.Guide cylinder 203a-5 is hollow sleeve tubular knot
In the internal diameter of second channel 203b-3 opposite upper downslide can occur in second channel 203b-3 for structure, major diameter fit
It is dynamic.
The third channel 203a-51 that the inside of guide cylinder 203a-5 has upper and lower ends penetrating.Second channel 203b-3's
Inside be additionally provided with can movable ball sealer 203c, ball sealer 203c is located at the top of guide cylinder 203a-5 to be pushed up with inner cylinder 203b
Position zone (being defined as " active chamber ") between portion.It is to be noted that ball sealer 203c is sphere, outer diameter is less than interior
The internal diameter of cylinder 203b, greater than the internal diameter of third channel 203a-51, therefore, ball sealer 203c just can in its natural state
It is shelved on the top of guide cylinder 203a-5, the upper end of third channel 203a-51 is formed and is blocked.In addition, guide cylinder 203a-5
Be provided with vertical throttling channel 203a-52 on inner sidewall, throttling channel 203a-52 be can will " active chamber " in cabinet body 100
The vertical slots that portion space is connected to, groove depth and cross section are smaller, into the gas slowly row that can allow in " active chamber "
It puts to cabinet body 100 in communication.
Further, the lower surface of the second center 301 is provided with track 301b (preferably integral type), and the two of track 301b
Side is provided with horizontal guide chute 301b-1, and the bottom of track 301b also has the cooperation being connected to guide chute 301b-1 sliding
Slot 301b-2.Correspondingly, the upper end of inner cylinder 203b is fixed with vertical outer boom 203b-4, and outer boom 203b-4's is upper
The upper end with sliding block 203b-5, outer boom 203b-4 corresponding to guide chute 301b-1 is held to pass through cooperation sliding slot 301b-2,
And in sliding block 203b-5 insertion guide chute 301b-1.Therefore, the upper end of outer boom 203b-4 can be along the side of track 301b
The sliding opposite to progress.
Based on above-mentioned, the pressure leak process of pressure-relief explosion-proof switchgear is as follows:
When generating high temperature and high pressure gas in cabinet body 100, gas passes through venthole 201a and enters in cavity 303, and pushes
Capping disk 300 moves upwards, and the capping disk 300 moved upwards drives outer boom 203b-4 to move upwards, meanwhile, outer boom
The sliding of adaptability can occur in track 301b for the upper end of 203b-4.The outer boom 203b-4 moved upwards can be by inner cylinder
The upward withdrawing of body 203b, at this point, the air in cabinet body 100 can impact ball sealer 203c by third channel 203a-51, by it
It opens, and enters " active chamber ", since third channel 203a-51 bore is larger, air-flow can be can smoothly enter into, in guarantee
Cylinder 203b upward withdrawing process is quickly, smoothly.That is, the process that capping disk 300 moves upwards can be quickly successfully complete
At guaranteeing the timeliness of pressure release.
After the completion of pressure release, capping disk 300 is gradually resetted and (is moved downward) by the pulling force of elastic component 302a, is moved downward
Capping disk 300 drive outer boom 203b-4 to move downward, while the upper end of outer boom 203b-4 can be sent out in track 301b
The sliding of raw adaptability.The outer boom 203b-4 moved downward has the trend of inner cylinder 203b push-in outer barrel 203a, this
When, the air in " active chamber " will be squeezed and ball sealer 203c tight closure is in the upper end of third channel 203a-51, because
Air in this " active chamber " can only be discharged into cabinet body 100 from throttling channel 203a-52.Since throttling channel 203a-52 is transversal
Face is smaller, and the gas slowly in " active chamber " only can allow for be emitted into cabinet body 100, and therefore, outer boom 203b-4 is downward
The process of movement is slow process, increases the opening time of capping disk 300, extends the period of pressure release, so that switch
The decompression function of cabinet has more reliability and safety.
It should be noted that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to preferable
Embodiment describes the invention in detail, those skilled in the art should understand that, it can be to technology of the invention
Scheme is modified or replaced equivalently, and without departing from the spirit and scope of the technical solution of the present invention, should all be covered in this hair
In bright scope of the claims.
Claims (10)
1. a kind of pressure-relief explosion-proof switchgear, it is characterised in that: including,
Cabinet body (100), top are provided with top plate (101), are had on the top plate (101) and are communicated in the cabinet body (100)
The installing port (101a) in portion；
It is connected disk (200), is arranged at the installing port (101a), and is carried out detachably with the edge of the installing port (101a)
It connects, is provided with venthole (201a) on the linking disk (200)；And
It covers disk (300), is arranged on the top of linking disk (200), and cover the venthole (201a), the capping
The edge of disk (300) is attached by elastic component (302a) with the disk (200) that is connected.
2. pressure-relief explosion-proof switchgear as described in claim 1, it is characterised in that: the linking disk (200) includes the first center
Area (201) and the first outer zone (202) for being located at the first center (201) outer rim, the first center (201) phase
It is recessed for first outer zone (202)；
The venthole (201a) is distributed in first center (201), and first center (201) is matched with the peace
The internal diameter of mouth (101a) is filled, and is embedded in the installing port (101a)；First outer zone (202) by bolt (202a) with
The edge of the installing port (101a) is detachably connected.
3. pressure-relief explosion-proof switchgear as claimed in claim 2, it is characterised in that: the capping disk (300) includes the second center
Area (301) and the second outer zone (302) for being located at the second center (301) outer rim；Second center (301) phase
It is convex for second outer zone (302), it is formed cavity (303)；
The outer diameter of second outer zone (302) is less than first center (201), and in the drawing of the elastic component (302a)
Power effect is lower to be contacted with the upper surface of first center (201).
4. pressure-relief explosion-proof switchgear as claimed in claim 3, it is characterised in that: the edge of second outer zone (302) is set
It is equipped with fixed block (302b), the fixed block (302b) is connect by the elastic component (302a) with the linking disk (200).
5. pressure-relief explosion-proof switchgear as claimed in claim 4, it is characterised in that: the upper surface of first center (201)
It is provided with a pair of first free bearing (201b), the lower surface of second center (301) is provided with corresponding to first free bearing
Second free bearing (301a) of (201b) passes through connection bar (201c) between first free bearing (201b) and the second free bearing (301a)
Connection.
6. the pressure-relief explosion-proof switchgear as described in claim 3~5 is any, it is characterised in that: first center (201)
It is provided at center and resets Buffer Unit (203)；
Described reset Buffer Unit (203) include the outer barrel (203a) being fixed on first center (201) and wear
Be inserted in the inner cylinder (203b) that the outer barrel (203a) is internal and upper end is exposed, the upper end of the inner cylinder (203b) with it is described
The lower surface of second center (301) is flexibly connected.
7. pressure-relief explosion-proof as claimed in claim 6 is opened, cabinet is closed, it is characterised in that: the outer barrel (203a) includes outer tube wall
(203a-1), the inside of the outer tube wall (203a-1) have first passage (203a-2), the outer tube wall (203a-1) it is upper
End has the first stop collar (203a-3), and bottom has cylinder bottom (203a-4), has the on first stop collar (203a-3)
One through-hole (203a-31) has the second through-hole (203a-41) on the cylinder bottom (203a-4)；
The inner cylinder (203b) include be matched with the first stop collar (203a-3) internal diameter inner tube wall (203b-1) and
The upper end of the second stop collar (203b-2) positioned at the bottom the inner tube wall (203b-1), the inner tube wall (203b-1) is pierced by institute
It states the first stop collar (203a-3), the major diameter fit of second stop collar (203b-2) is in the interior of the outer tube wall (203a-1)
Diameter.
8. pressure-relief explosion-proof switchgear as claimed in claim 7, it is characterised in that: the inside of the inner cylinder (203b) have to
The second channel (203b-3) of under shed, has that protrude into the second channel (203b-3) internal on the cylinder bottom (203a-4)
Guide cylinder (203a-5), the third channel (203a-51) that the inside of the guide cylinder (203a-5) has both ends penetrating；
The second channel (203b-3) is internally provided with ball sealer (203c), and the ball sealer (203c) is located at the guiding
The top of cylinder (203a-5), and the outer diameter of the ball sealer (203c) is greater than the internal diameter of the third channel (203a-51).
9. pressure-relief explosion-proof switchgear as claimed in claim 8, it is characterised in that: on the inner sidewall of the guide cylinder (203a-5)
It is provided with vertical throttling channel (203a-52).
10. the pressure-relief explosion-proof switchgear as described in claim 7~9 is any, it is characterised in that: second center (301)
Lower surface be provided with track (301b), the two sides of the track (301b) are provided with guide chute (301b-1), the track
The bottom of (301b) has the cooperation sliding slot (301b-2) being connected to the guide chute (301b-1)；
The upper end of the inner cylinder (203b) is fixed with vertical outer boom (203b-4), the upper end of the outer boom (203b-4)
With the sliding block (203b-5) for corresponding to the guide chute (301b-1), the upper end of the outer boom (203b-4) passes through described
Cooperate sliding slot (301b-2), and the sliding block (203b-5) is embedded in the guide chute (301b-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910574251.3A CN110165584B (en) | 2019-06-28 | 2019-06-28 | Pressure release explosion-proof switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910574251.3A CN110165584B (en) | 2019-06-28 | 2019-06-28 | Pressure release explosion-proof switch cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110165584A true CN110165584A (en) | 2019-08-23 |
| CN110165584B CN110165584B (en) | 2020-07-28 |
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ID=67636937
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910574251.3A Active CN110165584B (en) | 2019-06-28 | 2019-06-28 | Pressure release explosion-proof switch cabinet |
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| Country | Link |
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| CN (1) | CN110165584B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110601020A (en) * | 2019-09-30 | 2019-12-20 | 上海置信电气非晶有限公司 | Low-voltage cabinet protection structure for prefabricated substation |
| CN112867349A (en) * | 2020-12-31 | 2021-05-28 | 南京升平通信设备有限公司 | Network rack convenient to heat dissipation |
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| US4160304A (en) * | 1978-01-10 | 1979-07-10 | Imc Magnetics Corp. | Hold-open accessory for a door closer |
| CN204663227U (en) * | 2015-06-02 | 2015-09-23 | 葛志成 | Air cavity telescopic type fastening devices |
| CN207490419U (en) * | 2017-11-10 | 2018-06-12 | 天津市诚源电器有限公司 | A kind of switchgear explosion-protection equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4160304A (en) * | 1978-01-10 | 1979-07-10 | Imc Magnetics Corp. | Hold-open accessory for a door closer |
| CN204663227U (en) * | 2015-06-02 | 2015-09-23 | 葛志成 | Air cavity telescopic type fastening devices |
| CN207490419U (en) * | 2017-11-10 | 2018-06-12 | 天津市诚源电器有限公司 | A kind of switchgear explosion-protection equipment |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110601020A (en) * | 2019-09-30 | 2019-12-20 | 上海置信电气非晶有限公司 | Low-voltage cabinet protection structure for prefabricated substation |
| CN112867349A (en) * | 2020-12-31 | 2021-05-28 | 南京升平通信设备有限公司 | Network rack convenient to heat dissipation |
| CN112867349B (en) * | 2020-12-31 | 2022-02-18 | 南京升平通信设备有限公司 | Network rack convenient to heat dissipation |
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| Publication number | Publication date |
|---|---|
| CN110165584B (en) | 2020-07-28 |
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