CN107068455A - A kind of explosion-proof dustproof anticorrosive operation post - Google Patents
A kind of explosion-proof dustproof anticorrosive operation post Download PDFInfo
- Publication number
- CN107068455A CN107068455A CN201710528731.7A CN201710528731A CN107068455A CN 107068455 A CN107068455 A CN 107068455A CN 201710528731 A CN201710528731 A CN 201710528731A CN 107068455 A CN107068455 A CN 107068455A
- Authority
- CN
- China
- Prior art keywords
- handle
- explosion
- keeper
- key
- operation post
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/28—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member
- H01H9/285—Locking mechanisms incorporated in the switch assembly and operable by a key or a special tool
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0208—Interlock mechanisms; Means for avoiding unauthorised use or function, e.g. tamperproof
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0217—Mechanical details of casings
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0247—Electrical details of casings, e.g. terminals, passages for cables or wiring
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/06—Hermetically-sealed casings
- H05K5/061—Hermetically-sealed casings sealed by a gasket held between a removable cover and a body, e.g. O-ring, packing
Abstract
The invention discloses a kind of explosion-proof dustproof anticorrosive operation post, it is desirable to provide one kind is applied to explosive gas atmosphere（0th area, 1st area, 2nd area）And combustible dust environment（20th area, 21st area, 22nd area）Apply in places such as local power control, line maintenance, maintenance of equipment, equipment replacements, its drip irrigation device be include casing, two button heads being arranged on casing, two observation windows being arranged on above button head, division switch, the casing includes housing, the case lid with housing hinge, the division switch includes base, the handle being arranged on base, the key coordinated with handle, the handle is provided with the locked groove passed through for key, the key includes handle portion and rack, and the rack is provided with the tooth post of some vertical tooth racks.
Description
Technical field
The present invention relates to technical field of electric control, more particularly to a kind of explosion-proof dustproof anticorrosive operation post.
Background technology
In inflammable, explosive place, the gas and steam or combustible dust of various explosion hazards are frequently encountered, for example：
The control system of the departments such as oil, chemical industry, medicine, grain, military project, satellite and MISSILE LAUNCHING, using explosive operation post, at this
The many gas of a little media, the place of many water, temperature is in 40 degree of environment, and fluid, which enters, can wherein influence it normally to run.
At present, the Chinese patent of Application No. 201420270494.0 discloses a kind of explosion-proof dustproof anticorrosive operation post, it
Including by casing, button switch and incoming line, casing be fixedly connected to form by the side of the side of wire connection cavity and component chamber,
And through hole is provided with connecting side wall, the relative side wall of wire connection cavity is provided with incoming line, and wire connection cavity is equipped with component chamber matches somebody with somebody
Close the lid used to connect by screw rod, fixed connecting terminal block in wire connection cavity, on the lid used cooperatively with component chamber
Have and main make rotary switch.But protection of this explosion-proof dustproof anticorrosive operation post to rotary switch is not enough, staff may
Maloperation changes rotary switch generating state.
The content of the invention
In view of the deficienciess of the prior art, it is an object of the invention to provide a kind of explosion-proof dustproof anticorrosive operation post, having
Locking done to switch make it be difficult to be misused, simple in construction, safe advantage.
The present invention above-mentioned technical purpose technical scheme is that：A kind of explosion-proof dustproof anticorrosive operation
Post, including casing, the button head being arranged on casing, observation window and division switch, the division switch include being fixed on case
Base on body, the handle being connected with base rotation, it is inlaid on handle and is translated perpendicular to handle rotational plane
It is provided with keeper and the key for being interspersed on handle and being moved to locking keeper, handle for being pushed away before and after keeper
Run through to have to be provided with locating rod, locating rod on the locked groove passed through for key, the keeper on dynamic groove, handle and be arranged with bullet
Spring, the spring one end is fixed on the positioning element, and the other end of spring is fixed on handle, is additionally provided with the handle for fixed
The positioning hole that position part is passed through；
The key through locked groove and to be connected to the top of locating part to compression spring and locating rod passed into positioning hole,
Locating rod is rotated with base clamping with locking handle.
By above-mentioned setting, the rotation of handle can directly drive the contact switch of box house, play separating brake and combined floodgate
Control.In order to not allow handle to rotate easily, so being positioned by keeper to handle, keeper enters along groove
Row movement, keeper compression spring so that locating rod can be passed from positioning hole, and then handle is positioned on base, but
It is due to that elastic potential necessity of spring resets locating rod, so limit the reset of keeper using key, key is with interspersed
Mode insert locked groove, now keeper contradict can not be resetted on the key, the effect of locking handle is played, so as to prevent hand
Handle is arbitrarily rotated, and is difficult to be misused, and improves security.
Can be preferably as concrete scheme of the invention：The key includes setting on handle portion and rack, the rack
There are some tooth posts perpendicular to rack, the tooth post is provided with vertical tooth post and the limited block parallel with rack.
By above-mentioned setting, the structure design of key is user-friendly and difficult for drop-off in locked groove, so
The handle portion of key can hold in order to user, to the driving of key than relatively labor-saving, then for rack, tooth post and spacing
Block, has taken into full account the clamping firmness of the structural strength and key of key on handle, has been using process：Want by by
Keeper is pushed into by pressure along groove direction, and then key is penetrated into locked groove, and then key will be in the shape of rotatable handle plane
Moved under state toward groove side, the hook arrangement of limited block and tooth post formation is then caught on into handle, thus one carrys out key and is difficult
Come off, more firm stable.
Can be preferably as concrete scheme of the invention：The locked groove and groove are mutually perpendicular to.
By above-mentioned setting, locked groove and groove are mutually perpendicular to, and insert relatively convenient in locked groove for key, finger need not
Change angle.
Can be preferably as concrete scheme of the invention：The both sides of the keeper are additionally provided with fixture block, the fixture block
To with handle clamping.
By above-mentioned setting, fixture block is set on the positioning element, so that keeper passes through fixture block when sliding on groove
The positioning of keeper can be improved with increasing friction force, and can avoid positioning the probability come off.
Can be preferably as concrete scheme of the invention：The casing includes case lid and housing, between case lid and housing
Sliding turnover mechanism is provided with, the sliding turnover mechanism includes slide bar and the company of rotation that slide, sliding are connected in slide
The hinged seat of slide bar end is connected on, the slide is fixed on housing, and hinged seat is fixed on case lid.
By above-mentioned setting, case lid then needs first to enter line slip along the length direction of slide bar if necessary to open, so that
Obtain case lid and housing keeping parallelism and with after a certain distance, then case lid can be turned over by hinged seat and slide bar
Turn, case lid is to may insure that handle effectively can depart from housing in structure toward opening after a side to overturn, purpose of this design
Portion's structure, and ensure structure safety, it is to avoid occur circuit and pull apart.
Can be preferably as concrete scheme of the invention：It is provided with guide groove, the slide bar and sets on the slide
There is the guide pad coordinated with guide groove.
By above-mentioned setting, guide pad is set to improve the sliding stability of slide bar on slide bar, reduction shifts
Possibility.
Can be preferably as concrete scheme of the invention：The peace being bolted with slide is provided with the housing
Fill seat.
By above-mentioned setting, slide is installed using mounting seat, can effectively be fixed, and this detaching structure profit
In the replacing of constitutional detail, after phenomenon of rupture occurs in part or the life-span reaches, it can be individually replaced, it is not necessary to put
Total is changed, to reduce cost.
Can be preferably as concrete scheme of the invention：It is provided with contact surface position between the case lid and housing
Sealing ring.
By above-mentioned setting, sealing ring is set further to improve dust-proof, waterproof and sealing.
Can be preferably as concrete scheme of the invention：The button head includes operation button, stop button, the sight
Examining window includes operation window and stops window.
By above-mentioned setting, machine operation can be understood for user.
Can be preferably as concrete scheme of the invention：The bottom of the handle is also carried out by its vertical Plane of rotation
The mode for plugging together buckle is connected with action bars.
By above-mentioned setting, it is easy to carry out assembly and disassembly to action bars.
In summary, the invention has the advantages that：Effective limitation and lock have been carried out to the rotation that division is switched
It is fixed, it is difficult to carry out maloperation to division switch, and also it is simple in construction, cost is relatively low；Offer facility is opened or closed for casing,
And sealing is more preferably, explosion proof and corrosion protection dust-proof effect is improved.
Brief description of the drawings
Fig. 1 is the structural representation of the present embodiment；
Fig. 2 is the configuration schematic diagram of the present embodiment；
Fig. 3 is Fig. 2 A portions enlarged drawing；
Fig. 4 is the detonation configuration figure of sliding turnover mechanism；
Fig. 5 is Fig. 2 B portions enlarged drawing；
Fig. 6 is the Structure explosion diagram that division is switched；
Fig. 7 is that division is switched by the structure chart of key lockup state；
Fig. 8 is that division is switched not by the sectional view of key locking.
1, casing in figure；11st, case lid；12nd, housing；2nd, button head；21st, button is run；22nd, stop button；3rd, observation window；
31st, window is run；32nd, window is stopped；4th, division is switched；41st, base；42nd, handle；43rd, keeper；44th, key；441st, handle portion；
442nd, rack；443rd, tooth post；444th, limited block；51st, groove；52nd, locked groove；53rd, locating rod；54th, spring；55th, positioning hole；61、
Fixture block；7th, sliding turnover mechanism；71st, slide；72nd, slide bar；73rd, hinged seat；81st, guide groove；82nd, guide pad；83rd, mounting seat；
84th, sealing ring；85th, action bars.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing.
A kind of explosion-proof dustproof anticorrosive operation post, it is adaptable to the area of explosive gas atmosphere 0,1st area, 2nd area and combustible dust ring
The area of border 20,21st area, 22nd area.Its structure includes casing 1, the button head 2 being arranged on casing 1, observation window 3 and division switch
4, button head 2 includes operation button 21, stop button 22, and observation window 3 includes operation window 31 and stops window 32.Can be for user
Understand machine operation.
As shown in Fig. 2 casing 1 includes case lid 11 and housing 12, sliding turnover machine is provided between case lid 11 and housing 12
Structure 7.
Specifically, for sliding turnover mechanism 7 as shown in Figure 3 and Figure 4.Wherein, sliding turnover mechanism 7 include slide 71,
The slide bar 72 being connected in slide 71 and the hinged seat 73 for being rotatably connected on the end of slide bar 72 are slid, slide 71 is fixed on shell
On body 12, hinged seat 73 is fixed on case lid 11.Rotation is realized by bearing pin between the end of slide bar 72 and hinged seat 73.
In Fig. 4, the both sides of keeper 43 are additionally provided with fixture block 61, and fixture block 61 is used to and the clamping of handle 42.In keeper
Fixture block 61 is set on 43, so as to can be improved when keeper 43 slides on groove 51 by fixture block 61 with increasing friction force
The positioning of keeper 43, and can avoid positioning the probability come off.It is provided with guide groove 81, slide bar 72 and sets on slide 71
There is the guide pad 82 coordinated with guide groove 81.Guide pad 82 is set to improve the sliding stability of slide bar 72 on slide bar 72,
Reduce the possibility shifted.The mounting seat 83 being bolted with slide 71 is provided with housing 12.Using mounting seat 83
Slide 71 is installed, can effectively be fixed, and this detaching structure is beneficial to the replacing of constitutional detail, when part goes out
After existing phenomenon of rupture or life-span reach, it can be individually replaced, it is not necessary to replace total, to reduce cost.Case lid 11
Sealing ring 84 is provided with contact surface position between housing 12.Sealing ring 84 is set further to improve dust-proof, waterproof
And sealing.
Return in Fig. 2, division switch 4 includes the base 41 being fixed on casing 1, the handle being connected with the rotation of base 41
42nd, the keeper 43 that is inlaid on handle 42 and is translated perpendicular to the rotational plane of handle 42 and it is interspersed in handle 42
Go up and be used to the key 44 of the movement of locking keeper 43.
Wherein the structure of keeper 43 is as shown in figure 5, keeper 43 is in the shape of substantially arrow.The both sides of keeper 43 are also
Fixture block 61 is provided with, fixture block 61 is in hook, and the bottom of keeper 43 is locating rod 53.
With reference to shown in Fig. 6, it is provided with handle 42 and supplies key for promoting to run through on groove 51, handle 42 before and after keeper 43
The locked groove 52 that spoon 44 is passed through, keeper 43 is fixedly connected with locating rod 53.The bottom of handle 42 is also entered by its vertical Plane of rotation
The mode that row plugs together buckle is connected with action bars 85.It is easy to carry out assembly and disassembly to action bars 85.
Base 41 is is fixed on case lid 11 by its mounting means, and then handle 42 is arranged on the installation site of base 41
On, there are multiple holes on base 41 and by multiple annular grooves, annular groove is that hole is for positioning for being rotated for handle 42
What bar 53 was positioned.
For locked groove 52 and groove 51, both are to be mutually perpendicular to.Locked groove 52 and groove 51 are mutually perpendicular to, and are inserted for key 44
Enter relatively convenient in locked groove 52, finger need not change angle.
For key 44, key 44 includes handle portion 441 and rack 442, and rack 442 is provided with some perpendicular to rack
442 tooth post 443, tooth post 443 is provided with vertical tooth post 443 and the limited block 444 parallel with rack 442.The structure of key 44
Design is user-friendly and difficult for drop-off in locked groove 52, so the handle portion 441 of key 44 can be in order to user
Hold, to the driving of key 44 than relatively labor-saving, then for rack 442, tooth post 443 and limited block 444, taken into full account key
Clamping firmness of the structural strength and key 44 of spoon 44 on handle 42.
According to Fig. 6, installation process is：Keeper 43 is pushed into along the direction of groove 51 by pressing, that is, in Fig. 6
F1 directions, then key 44 is penetrated into locked groove 52, that is, F2 directions in Fig. 6.Then key 44 will revolve in handle 42
Turn to move downward toward position key 44 in the movement of the side of groove 51, that is, relative Fig. 6 in the state of plane, then by limited block
444 and the hook arrangement of the formation of tooth post 443 catch on handle 42, thus one to carry out key 44 difficult for drop-off, more firm stable.
The mobile route of specific key 44 along D2 directions as shown in fig. 7, first along along D1 directions insertion lockhole, then move
Handle 42 is caught on, is then moved toward D3 directions so that key 44 can effectively catch on handle 42.
As shown in figure 8, being arranged with spring 54 in locating rod 53, the one end of spring 54 is fixed on keeper 43, spring 54
The other end is fixed on handle 42, and the positioning hole 55 passed through for keeper 43 is additionally provided with handle 42.Key 44 to through
Locked groove 52 is simultaneously connected to the top of locating part to compression spring 54 and locating rod 53 is passed into positioning hole 55, locating rod 53 and bottom
41 clampings of seat are rotated with locking handle 42.
It is as follows using process analysis procedure analysis for it with reference to shown in Fig. 2：, it is necessary to case lid 11 when needing to check 1 inside of casing
Open, then first enter line slip along the length direction of slide bar 72, to cause case lid 11 and the keeping parallelism of housing 12 and have certain
Distance after, then case lid 11 can be overturn by hinged seat 73 and slide bar 72, and case lid 11 is opened toward after a side to overturn,
The purpose of this design is to may insure that handle 42 can effectively depart from the internal structure of housing 12 in structure, and ensures that structure is pacified
Entirely, it is to avoid occur circuit and pull apart.
With reference to shown in Fig. 6,7 and 8, the rotation of handle 42 can directly drive the contact switch inside casing 1, play separating brake and
The control of combined floodgate.In order to not allow handle 42 to rotate easily, so being positioned by keeper 43 to handle 42, position
Part 43 is moved along groove 51, the compression spring 54 of keeper 43, so that locating rod 53 can be passed from positioning hole 55, is entered
And handle 42 is positioned on base 41, but be due to spring 54 elastic potential necessity locating rod 53 is resetted, so using key
Spoon 44 limits the reset of keeper 43, and key 44 inserts locked groove 52 in the way of interspersed, now keeper 43 is contradicted in key
It can not be resetted on 44, play the effect of locking handle 42, so as to prevent that handle 42 from arbitrarily being rotated, be difficult to be misused, carry
High security.
This specific embodiment is only explanation of the invention, and it is not limitation of the present invention, people in the art
Member can make the modification without creative contribution to the present embodiment as needed after this specification is read, but as long as at this
All protected in the right of invention by Patent Law.
Claims (10)
1. a kind of explosion-proof dustproof anticorrosive operation post, including casing (1), the button head (2), the observation window that are arranged on casing (1)
(3) and division switch (4), it is characterised in that：Base (41) that division switch (4) includes being fixed on casing (1),
The handle (42) being connected is rotated with base (41), is inlaid on handle (42) and is put down perpendicular to handle (42) rotational plane
The keeper (43) of shifting and the key (44) for being interspersed on handle (42) and being used to locking keeper (43) movement, handle
(42) be provided with has the locked groove passed through for key (44) for promoting to run through on groove (51), handle (42) before and after keeper (43)
(52), it is provided with the keeper (43) in locating rod (53), locating rod (53) and is arranged with spring (54), the spring (54)
One end is fixed on keeper (43), and the other end of spring (54) is fixed on handle (42), is also set up on the handle (42)
There is the positioning hole (55) passed through for keeper (43)；
The key (44) is through locked groove (52) and to be connected to the top of locating part to compression spring (54) and will positioning
Bar (53) passes positioning hole (55), and locating rod (53) is rotated with base (41) clamping with locking handle (42).
2. explosion-proof dustproof anticorrosive operation post according to claim 1, it is characterised in that：The key (44) includes handle portion
(441) and rack (442), the rack (442) is provided with some tooth posts (443) perpendicular to rack (442), the tooth post
(443) vertical tooth post (443) and the limited block (444) parallel with rack (442) are provided with.
3. explosion-proof dustproof anticorrosive operation post according to claim 2, it is characterised in that：The locked groove (52) and groove (51)
It is mutually perpendicular to.
4. explosion-proof dustproof anticorrosive operation post according to claim 1, it is characterised in that：The both sides of the keeper (43) are also
Fixture block (61) is provided with, the fixture block (61) is used to and handle (42) clamping.
5. explosion-proof dustproof anticorrosive operation post according to claim 1, it is characterised in that：The casing (1) includes case lid
(11) sliding turnover mechanism (7), the sliding turnover mechanism and housing (12), are provided between case lid (11) and housing (12)
(7) slide (71), the slide bar (72) that sliding is connected in slide (71) and the hinge for being rotatably connected on slide bar (72) end are included
Joint chair (73), the slide (71) is fixed on housing (12), and hinged seat (73) is fixed on case lid (11).
6. explosion-proof dustproof anticorrosive operation post according to claim 5, it is characterised in that：It is provided with and leads on the slide (71)
To groove (81), the guide pad (82) coordinated with guide groove (81) is provided with the slide bar (72).
7. explosion-proof dustproof anticorrosive operation post according to claim 6, it is characterised in that：Be provided with the housing (12) with
The mounting seat (83) that slide (71) is bolted.
8. explosion-proof dustproof anticorrosive operation post according to claim 7, it is characterised in that：The case lid (11) and housing (12)
Between contact surface position on be provided with sealing ring (84).
9. explosion-proof dustproof anticorrosive operation post according to claim 1, it is characterised in that：The button head (2) includes operation
Button (21), stop button (22), the observation window (3) include operation window (31) and stop window (32).
10. explosion-proof dustproof anticorrosive operation post according to claim 1, it is characterised in that：The bottom of the handle (42) is also
Action bars (85) is connected with by way of its vertical Plane of rotation carries out plugging together buckle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710528731.7A CN107068455A (en) | 2017-07-01 | 2017-07-01 | A kind of explosion-proof dustproof anticorrosive operation post |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710528731.7A CN107068455A (en) | 2017-07-01 | 2017-07-01 | A kind of explosion-proof dustproof anticorrosive operation post |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107068455A true CN107068455A (en) | 2017-08-18 |
Family
ID=59613522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710528731.7A Pending CN107068455A (en) | 2017-07-01 | 2017-07-01 | A kind of explosion-proof dustproof anticorrosive operation post |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107068455A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109763991A (en) * | 2019-02-25 | 2019-05-17 | 志纳电器有限公司 | A kind of smoke controlling air-blower control equipment |
| CN109862735A (en) * | 2019-03-13 | 2019-06-07 | 辽宁海浪防爆电器有限责任公司 | A kind of explosive operation post |
| CN112396877A (en) * | 2020-11-18 | 2021-02-23 | 安徽文香信息技术有限公司 | Protection device of wisdom blackboard based on elasticity formula push-and-pull door lock structure |
| CN117218970A (en) * | 2023-11-07 | 2023-12-12 | 深圳利亚德光电有限公司 | LED display device |
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| US20110310533A1 (en) * | 2010-06-17 | 2011-12-22 | Diversified Control, Inc. | Panelboard Enclosure With External Power Cutoff Switch |
| CN203552984U (en) * | 2013-11-20 | 2014-04-16 | 燎原控股集团有限公司 | Operating knob locking device and anti-explosion distribution box provided with the same |
| CN203840649U (en) * | 2014-05-24 | 2014-09-17 | 大庆宏富来电气设备制造有限公司 | Anti-explosion and antic-corrosion operation column |
| CN204046984U (en) * | 2014-09-23 | 2014-12-24 | 合隆防爆电气有限公司 | Explosive operation post |
| CN204516620U (en) * | 2015-04-16 | 2015-07-29 | 祥华防爆电器有限公司 | A kind of new type explosion proof operation post |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20110310533A1 (en) * | 2010-06-17 | 2011-12-22 | Diversified Control, Inc. | Panelboard Enclosure With External Power Cutoff Switch |
| CN203552984U (en) * | 2013-11-20 | 2014-04-16 | 燎原控股集团有限公司 | Operating knob locking device and anti-explosion distribution box provided with the same |
| CN203840649U (en) * | 2014-05-24 | 2014-09-17 | 大庆宏富来电气设备制造有限公司 | Anti-explosion and antic-corrosion operation column |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109763991A (en) * | 2019-02-25 | 2019-05-17 | 志纳电器有限公司 | A kind of smoke controlling air-blower control equipment |
| CN109763991B (en) * | 2019-02-25 | 2023-08-18 | 志纳电器有限公司 | Prevent exhaust fan controlgear |
| CN109862735A (en) * | 2019-03-13 | 2019-06-07 | 辽宁海浪防爆电器有限责任公司 | A kind of explosive operation post |
| CN112396877A (en) * | 2020-11-18 | 2021-02-23 | 安徽文香信息技术有限公司 | Protection device of wisdom blackboard based on elasticity formula push-and-pull door lock structure |
| CN117218970A (en) * | 2023-11-07 | 2023-12-12 | 深圳利亚德光电有限公司 | LED display device |
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Application publication date: 20170818 |