CN110213916B - Linkage self-locking explosion-proof control cabinet - Google Patents

Linkage self-locking explosion-proof control cabinet Download PDF

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Publication number
CN110213916B
CN110213916B CN201910508917.5A CN201910508917A CN110213916B CN 110213916 B CN110213916 B CN 110213916B CN 201910508917 A CN201910508917 A CN 201910508917A CN 110213916 B CN110213916 B CN 110213916B
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CN
China
Prior art keywords
rod
cabinet
locking
contact
reset
Prior art date
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Active
Application number
CN201910508917.5A
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Chinese (zh)
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CN110213916A (en
Inventor
金敦水
王仟
胡斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ergong Explosion Proof Technology Co ltd
Original Assignee
Ergong Explosion Proof Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ergong Explosion Proof Technology Co ltd filed Critical Ergong Explosion Proof Technology Co ltd
Priority to CN201910508917.5A priority Critical patent/CN110213916B/en
Publication of CN110213916A publication Critical patent/CN110213916A/en
Application granted granted Critical
Publication of CN110213916B publication Critical patent/CN110213916B/en
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Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00Mechanisms for operating contacts
    • H01H3/02Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/16Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. for a door switch, a limit switch, a floor-levelling switch of a lift
    • H01H3/161Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. for a door switch, a limit switch, a floor-levelling switch of a lift for actuation by moving a closing member, e.g. door, cover or lid
    • H01H3/163Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. for a door switch, a limit switch, a floor-levelling switch of a lift for actuation by moving a closing member, e.g. door, cover or lid associated with locking or manipulating means of the closing member
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00Casings, cabinets or drawers for electric apparatus
    • H05K5/02Details
    • H05K5/0217Mechanical details of casings
    • H05K5/0221Locks; Latches
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00Casings, cabinets or drawers for electric apparatus
    • H05K5/06Hermetically-sealed casings
    • H05K5/069Other details of the casing, e.g. wall structure, passage for a connector, a cable, a shaft

Abstract

The invention discloses a linkage self-locking explosion-proof control cabinet which comprises a cabinet body (1), wherein one side of the cabinet body (1) is rotatably connected with a cabinet door (2), a vertically arranged mounting frame (3) is arranged at the bottom of the inner side of the cabinet door (2), a main power switch (31) is arranged on the mounting frame (3), and a locking device and a linkage device are arranged on the cabinet body (1). The invention has the advantages that: according to the invention, on one hand, the linkage device can control the linkage to close the main power switch when the cabinet door is closed, and the linkage device can also control the locking device to lock the cabinet door through the contact switch linkage.

Description

Linkage self-locking explosion-proof control cabinet
Technical Field
The invention relates to the technical field of electrical explosion prevention, in particular to a linkage self-locking explosion-proof control cabinet.
Background
With the rapid development of industries such as kerosene chemical industry, metal smelting, chemical pharmacy and the like, the explosion-proof control cabinet is more and more widely used in system control. How to accurately utilize an explosion-proof control cabinet in an explosive gas injury occasion, as the electrical equipment is deployed at the time of affairs, electric sparks are generated unleasedly or a hot appearance is formed, and once the electrical equipment meets with the explosive gas confuser on the spot, the electrical equipment can cause the generation of explosion disorder, thereby directly endangering the property and the calmness of the life of a user. The explosion-proof control cabinet has the advantages that the power supply in the cabinet can be automatically cut off when the cabinet door is opened, the safety is high, the power supply can be cut off instantly in the explosion-proof control cabinet, the external combustible and explosive gas can easily enter the cabinet in the instant when the cabinet door of the control cabinet is opened, and the potential safety hazard is still large.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a linkage self-locking explosion-proof control cabinet.
In order to achieve the purpose, the invention adopts the following technical scheme:
a linkage self-locking explosion-proof control cabinet comprises a cabinet body, wherein one side of the cabinet body is rotatably connected with a cabinet door, the bottom of the inner side of the cabinet door is provided with a vertically arranged mounting rack, a main power switch is arranged on the mounting rack, and the cabinet body is provided with a locking device and a linkage device;
the linkage device comprises bearing seats symmetrically fixed on the inner wall of the cabinet body, a rotating rod is connected between the two bearing seats in a rotating fit manner, a rotating disc is sleeved on the outer side of the rotating rod, a T-shaped groove is formed in one side of the rotating disc, a switch poke rod of the main power switch extends into the T-shaped groove, a sliding rod is connected to the bottom of the inner side of the cabinet body in a sliding fit manner, a rack is fixedly connected to the middle of the upper side of the sliding rod, a toothed ring is sleeved on the outer side of the rotating rod and meshed with the rack, and a;
the locking device comprises a first vertical plate and a second vertical plate which are fixedly connected to the bottom of the inner side of the cabinet body, round holes are formed in one sides of the first vertical plate and the second vertical plate, the two round holes are coaxially arranged, push rods are slidably connected in the two round holes, one end of each push rod is hinged and fixed with a locking piece for locking the cabinet door, each locking piece comprises a rotating column, the rotating columns are rotatably connected in the rotating holes in the bottom of the inner side of the cabinet body, a torsional spring for controlling the resetting of the rotating columns is arranged in each rotating hole, a fixed rod is fixedly connected to one side of each rotating column, a locking rod is fixedly connected to one side of each fixed rod, a locking plate is fixedly connected to one side of each cabinet door, locking holes are formed in the locking plates, the locking rods are arranged opposite to the locking holes, the locking rods can be inserted into the locking holes along, the second connecting rod is hinged and fixed with the push rod, the other end of the push rod is fixedly connected with an iron plate, one side of the first vertical plate is fixedly connected with an electromagnet ring, the electromagnet ring is arranged towards the iron plate, the electromagnet ring can generate suction force on the iron plate after being electrified and is used for driving the push rod to slide in the two circular holes, the push rod is sleeved and fixed with a reset ring, the reset ring is arranged between the first vertical plate and the second vertical plate, the push rod is sleeved and connected with a first reset spring, the first reset spring is arranged between the reset ring and the second vertical plate, and the push rod is reset after the electromagnet ring is powered off;
the main power switch is connected with the electromagnet ring through a power line, a contact switch is further mounted on the power line, the contact switch is fixedly connected to the bottom plate of the cabinet body, a contact piece is fixedly connected to one side of the turntable, the contact piece and the contact switch are arranged oppositely, and the turntable drives the contact piece to rotate so as to control the disconnection or the closing of the contact switch.
Preferably, a limiting groove is formed in one side of the fixing rod, the bottom of the inner side of the cabinet body is fixedly connected with the vertically arranged limiting rod, and the limiting rod and the limiting groove are arranged oppositely and used for limiting the rotation angle of the rotating column.
Preferably, one side in the cabinet body is fixedly connected with the positioning block, one side of the positioning block is provided with a positioning hole, one side of the iron plate, facing the positioning block, is provided with a positioning rod, the positioning rod and the positioning hole are coaxially arranged correspondingly, and the positioning rod can be in sliding fit in the positioning hole.
Preferably, one side in the cabinet body is fixedly connected with a guide plate, one side of the guide plate is provided with a guide hole, the sliding rod penetrates through the guide hole, and the sliding rod can slide in the guide hole in a reciprocating mode and is used for guiding the sliding rod.
Preferably, the sliding rod is fixedly sleeved with a first blocking ring, and the first blocking ring is arranged between the guide plate and the rack.
Preferably, resetting means includes the post that resets, and the post fixed connection that resets is internal at the cabinet, and the post that resets is equipped with the reset hole towards one side of cabinet door, and second reset spring is equipped with to the bottom in the reset hole, the slide bar is pegged graft and is in the reset hole is downthehole, the slide bar can the downthehole reciprocal slip that resets.
Preferably, one end of the sliding rod extending into the return hole is fixedly connected with a central rod, and the central rod is inserted into the center of the second return spring.
Preferably, a second stop ring is fixedly sleeved on the sliding rod and arranged between the reset column and the rack.
Preferably, the contact piece comprises a cross rod fixedly connected to one side of the turntable, one side of the cross rod is fixedly connected with a contact rod, the contact rod and the contact switch are correspondingly arranged, and the contact rod can rotate along with the turntable to contact or be far away from the contact switch.
Preferably, one end of the contact rod facing the contact switch is fixedly connected with a round ball, and the contact rod is in contact with the contact switch through the round ball.
The invention has the advantages that: according to the invention, on one hand, the linkage device can control the linkage to close the main power switch when the cabinet door is closed, and the linkage device can also control the locking device to lock the cabinet door through the contact switch linkage.
Drawings
FIG. 1 is a schematic diagram of the basic structure of the present invention;
FIG. 2 is a schematic view of the connection between the turntable and the main power switch when the cabinet door is opened;
FIG. 3 is a schematic view showing the connection between the turntable and the main power switch when the cabinet door is closed;
FIG. 4 is an enlarged view of portion A of FIG. 1;
FIG. 5 is a view showing the construction of the locking device when the door is closed;
FIG. 6 is an enlarged view of section B of FIG. 1 with the cabinet door open;
fig. 7 is an enlarged view of portion B of fig. 1 when the cabinet door is closed.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
As shown in fig. 1-7, the linkage self-locking explosion-proof control cabinet provided by the invention comprises a cabinet body 1, wherein one side of the cabinet body 1 is rotatably connected with a cabinet door 2, a vertically arranged mounting frame 3 is arranged at the bottom of the inner side of the cabinet door 2, a main power switch 31 is arranged on the mounting frame 3, and a locking device and a linkage device are arranged on the cabinet body 1.
The aggregate unit includes that the symmetry fixes bearing frame 71 on the internal wall of cabinet 1, two bearing frames 71 set up relatively, connect dwang 7 through bearing normal running fit between two bearing frames 71, carousel 72 is cup jointed in the dwang 7 outside, carousel 72 one side is equipped with T type groove 721, total switch 31's switch poker rod stretches into to T type inslot 721, slide bar 6 is connected in cabinet 1 inboard bottom sliding fit, one side fixed connection deflector 4 in the cabinet body 1, deflector 4 one side is equipped with the guiding hole, slide bar 6 passes from the guiding hole, slide bar 6 can be at the downthehole reciprocal slip of guiding, be used for leading slide bar 6. The slide lever 6 is prevented from being displaced when sliding. The middle part of the upper side of the sliding rod 6 is fixedly connected with a rack 61, a toothed ring 76 is sleeved outside the rotating rod 7, and the toothed ring 76 is meshed with the rack 61. A resetting device 5 is arranged at one end of the sliding rod 6 far away from the cabinet door 2. Reset device 5 includes reset post 51, and reset post 51 fixed connection is inboard at the cabinet body 1, and reset post 51 is equipped with reset hole 511 towards one side of cabinet door 2, and second reset spring 52 is equipped with to the bottom in reset hole 511, and slide bar 6 is pegged graft in reset hole 511, and slide bar 6 can be in reset hole 511 reciprocal slip. One end of the slide rod 6 extending into the return hole 511 is fixedly connected to the center rod 64, and the center rod 64 is inserted into the center of the second return spring 52. The sliding rod 6 is fixedly sleeved with a second retaining ring 63, and the second retaining ring 63 is arranged between the reset column 51 and the rack 61.
The locking device comprises a first vertical plate 8 and a second vertical plate 8a which are fixedly connected with the bottom of the inner side of the cabinet body 1, round holes are arranged on one sides of the first vertical plate 8 and the second vertical plate 8a, the two round holes are coaxially arranged, push rods 81 are slidably connected in the two round holes, one ends of the push rods 81 are fixedly hinged with locking parts for locking the cabinet door, the locking parts comprise rotating columns 12, the rotating columns 12 are rotatably connected in the rotating holes at the bottom of the inner side of the cabinet body 1, torsional springs for controlling the rotating columns 12 to reset are arranged in the rotating holes, the installation mode between the torsional springs and the rotating columns 12 is the prior art, a fixed rod 13 is fixedly connected on one side of the rotating columns 12, arc-shaped locking rods 14 are fixedly connected on one side of the fixed rod 13, locking plates 16 are fixedly connected on the cabinet door 2, arc-shaped locking holes 161 are arranged on the locking plates 16, the locking, the cabinet door locking device is used for locking the cabinet door 2, one side of the rotating column 12 is also fixedly connected with a first connecting rod 17, the first connecting rod 17 is hinged and fixed with a second connecting rod 84, and the second connecting rod 84 is hinged and fixed with the push rod 81. The dead lever 13 one side is equipped with spacing groove 131, at the vertical gag lever post 15 of setting of 1 inboard bottom fixed connection of the cabinet body, gag lever post 15 sets up with spacing groove 131 relatively for carry on spacingly to the turned angle of post 12.
At push rod 81 other end fixed connection iron plate 9, at 8 one side fixed connection electromagnetism ring 10 of first riser, electromagnetism ring 10 sets up towards iron plate 9, can produce suction to iron plate 9 after electromagnetism ring 10 circular telegram for drive push rod 81 slides in two round holes, cabinet body 1 in one side fixed connection locating piece 91, locating piece 91 one side is equipped with the locating hole, iron plate 9 is equipped with locating lever 92 towards locating piece 91 one side, locating lever 92 corresponds coaxial setting with the locating hole, locating lever 92 can be in locating hole sliding fit.
A fixed reset ring 82 is sleeved on the push rod 81, the reset ring 82 is arranged between the first vertical plate 8 and the second vertical plate 8a, a first reset spring 83 is sleeved on the push rod 81, the first reset spring 83 is arranged between the reset ring 82 and the second vertical plate 8a, and the push rod 81 is reset after the electromagnet ring 10 is powered off.
The main power switch 31 is connected with the electromagnet ring 10 through a power line control, a contact switch 75 is further mounted on the power line, the contact switch 75 is fixedly connected to the bottom plate of the cabinet body 1, a contact member is fixedly connected to one side of the turntable 72 and comprises a cross rod 73 fixedly connected to one side of the turntable 72, a contact rod 74 is fixedly connected to one side of the cross rod 73, the contact rod 74 and the contact switch 75 are correspondingly arranged, and the contact rod 74 can rotate along with the turntable 72 to be in contact with or be far away from the contact switch 75. A spherical ball 741 is fixedly connected to an end of the contact lever 74 facing the contact switch 75, and the contact lever 74 contacts the contact switch 75 through the spherical ball 741. The contact piece is rotated by the turntable 72 to control the round ball 741 to contact or separate from the contact switch 75, so as to control the opening or closing of the contact switch 75.
The working principle of the invention is as follows: when the cabinet door 2 is opened, the sliding rod 6 extends out of the cabinet body 1, the main power switch 31 is in an off state, and the contact switch is also in an off state. When the cabinet door is closed, the cabinet door 2 generates inward thrust to the sliding rod 6, the sliding rod 6 is pushed to slide towards the cabinet body 1 along the guide hole of the guide plate 4, the sliding rod 6 compresses the spring, and when the second stop ring 63 contacts with the reset column 51, the cabinet door 2 is just in a closed state. In the moving process of the sliding rod 6, the rack 61 on the upper side of the sliding rod 6 drives the gear ring 76 to rotate, so as to drive the rotating rod 7 to rotate, the rotating disk 72 also rotates along with the rotating rod 7, and in the rotating process of the rotating disk 72, on one hand, the switch poke rod of the main power switch 31 can be poked through the T-shaped groove 721, so as to close the main power switch 31; on the other hand, can drive horizontal pole 73 and rotate, thereby make ball 741 contact with contact switch 75, thereby through contact switch control electromagnetism ring 10 circular telegram, the circular telegram of electromagnetism ring 10 circular telegram back adsorbs iron plate 9 and removes to electromagnetism ring 10 direction, iron plate 9 is after the elasticity of first spring 83 is overcome at the removal in-process, produce thrust to push rod 81, promote first connecting rod 17 through push rod 81, thereby it rotates to drive rotation post 12, at rotation post 12 rotation in-process, in the check lock pole 14 can insert the locking hole 161, lock cabinet door 2, under the condition of continuous power supply in the cabinet body 1, the cabinet door will unable the opening.
When the cabinet door 2 needs to be opened, the circuit of the explosion-proof control cabinet is cut off in the control room, the electromagnet ring 10 loses magnetic force, the push rod 81 resets under the action of the elastic force of the first spring 83, the first connecting rod 17 loses the thrust of the push rod 81, the rotating column 12 rotates under the action of the torsion spring, and the locking rod 14 moves out of the locking hole 161 in the rotating process of the rotating column 12. If the locking device of the present invention fails, when the cabinet door 2 is opened accidentally, the sliding rod 6 moves outward under the elastic force of the second spring 52, and in the moving process, the rack 61 on the upper side of the sliding rod 6 drives the toothed ring 76 to rotate, and the switch toggle rod of the main power switch 31 is toggled through the T-shaped slot 721, so that the main power switch 31 is disconnected, and the present invention has the advantages of double protection and high safety.

Claims (9)

1. The utility model provides an explosion-proof switch board of linkage auto-lock, includes the cabinet body (1), and cabinet body (1) one side is rotated and is connected cabinet door (2), and cabinet door (2) inboard bottom is equipped with mounting bracket (3) of vertical setting, is equipped with total switch (31) on mounting bracket (3), its characterized in that: the cabinet body (1) is provided with a locking device and a linkage device;
the linkage device comprises bearing seats (71) symmetrically fixed on the inner wall of the cabinet body (1), a rotating rod (7) is connected between the two bearing seats (71) in a rotating fit manner, a rotating disc (72) is sleeved on the outer side of the rotating rod (7), a T-shaped groove (721) is formed in one side of the rotating disc (72), a switch poke rod of the main power switch (31) extends into the T-shaped groove (721), a sliding rod (6) is connected to the bottom of the inner side of the cabinet body (1) in a sliding fit manner, a rack (61) is fixedly connected to the middle of the upper side of the sliding rod (6), a toothed ring (76) is sleeved on the outer side of the rotating rod (7), the toothed ring (76) is meshed with the rack (61), and a reset device (5);
the locking device comprises a first vertical plate (8) and a second vertical plate (8 a) which are fixedly connected to the bottom of the inner side of the cabinet body (1), round holes are formed in one sides of the first vertical plate (8) and the second vertical plate (8 a), the two round holes are coaxially arranged, a push rod (81) is slidably connected in the two round holes, one end of the push rod (81) is hinged and fixedly provided with a locking piece for locking the cabinet door, the locking piece comprises a rotating column (12), the rotating column (12) is rotatably connected in the rotating hole in the bottom of the inner side of the cabinet body (1), a torsion spring for controlling the rotating column (12) to reset is arranged in the rotating hole, a fixing rod (13) is fixedly connected to one side of the rotating column (12), a locking rod (14) is fixedly connected to one side of the fixing rod (13), a locking plate (16) is fixedly connected to the cabinet door (2), a locking hole (161) is formed in the, the locking rod (14) can be inserted into the locking hole (161) along with the rotation of the rotating column (12) and used for locking the cabinet door (2), one side of the rotating column (12) is fixedly connected with a first connecting rod (17), the first connecting rod (17) is hinged and fixed with a second connecting rod (84), the second connecting rod (84) is hinged and fixed with the push rod (81), the other end of the push rod (81) is fixedly connected with an iron plate (9), one side of the first vertical plate (8) is fixedly connected with an electromagnet ring (10), the electromagnet ring (10) is arranged towards the iron plate (9), the electromagnet ring (10) can generate suction to the iron plate (9) after being electrified and is used for driving the push rod (81) to slide in the two circular holes, a reset ring (82) is fixedly sleeved and connected on the push rod (81), the reset ring (82) is arranged between the first vertical plate (8) and the second vertical plate (8 a), and a first reset spring (83) is sleeved and connected on the push rod, the first reset spring (83) is arranged between the reset ring (82) and the second vertical plate (8 a), and resets the push rod (81) after the electromagnet ring (10) is powered off;
the main power switch (31) is connected with the electromagnet ring (10) in a control mode through a power line, a contact switch (75) is further mounted on the power line, the contact switch (75) is fixedly connected to a bottom plate of the cabinet body (1), a contact piece is fixedly connected to one side of the rotary disc (72), the contact piece is opposite to the contact switch (75), and the contact piece is driven to rotate through the rotary disc (72) to control the contact switch (75) to be switched off or switched on;
resetting means (5) are including restoring post (51), and restoring post (51) fixed connection is inboard at cabinet body (1), and one side that restoring post (51) are towards cabinet door (2) is equipped with reset hole (511), and second reset spring (52) are equipped with to the bottom in reset hole (511), slide bar (6) are pegged graft in reset hole (511), and slide bar (6) can reciprocating sliding in reset hole (511).
2. The linkage self-locking explosion-proof control cabinet according to claim 1, characterized in that: dead lever (13) one side is equipped with spacing groove (131) the vertical gag lever post (15) that sets up of cabinet body (1) inboard bottom fixed connection, gag lever post (15) with spacing groove (131) set up relatively for carry on spacingly to the turned angle of post (12).
3. The linkage self-locking explosion-proof control cabinet according to claim 1, characterized in that: one side fixed connection locating piece (91) in the cabinet body (1), locating piece (91) one side is equipped with the locating hole, iron plate (9) are equipped with locating lever (92) towards locating piece (91) one side, locating lever (92) with the locating hole corresponds coaxial setting, locating lever (92) can be in locating hole sliding fit.
4. The linkage self-locking explosion-proof control cabinet according to claim 1, characterized in that: one side fixed connection deflector (4) in the cabinet body (1), deflector (4) one side is equipped with the guiding hole, slide bar (6) are followed pass in the guiding hole, slide bar (6) can reciprocating sliding in the guiding hole for lead slide bar (6).
5. The linkage self-locking explosion-proof control cabinet according to claim 4, characterized in that: a first blocking ring (62) is fixedly sleeved on the sliding rod (6), and the first blocking ring (62) is arranged between the guide plate (4) and the rack (61).
6. The linkage self-locking explosion-proof control cabinet according to claim 1, characterized in that: one end of the sliding rod (6) extending into the reset hole (511) is fixedly connected with a central rod (64), and the central rod (64) is inserted into the center of the second reset spring (52).
7. The linkage self-locking explosion-proof control cabinet according to claim 1, characterized in that: and a second retaining ring (63) is fixedly sleeved on the sliding rod (6), and the second retaining ring (63) is arranged between the reset column (51) and the rack (61).
8. The linkage self-locking explosion-proof control cabinet according to claim 1, characterized in that: the contact piece comprises a cross rod (73) fixedly connected to one side of the rotary disc (72), one side of the cross rod (73) is fixedly connected with a contact rod (74), the contact rod (74) and the contact switch (75) are arranged correspondingly, and the contact rod (74) can rotate along with the rotary disc (72) to be in contact with or be far away from the contact switch (75).
9. The linkage self-locking explosion-proof control cabinet according to claim 8, characterized in that: one end of the contact rod (74) facing the contact switch (75) is fixedly connected with a round ball (741), and the contact rod (74) is in contact with the contact switch (75) through the round ball (741).
CN201910508917.5A 2019-06-13 2019-06-13 Linkage self-locking explosion-proof control cabinet Active CN110213916B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910508917.5A CN110213916B (en) 2019-06-13 2019-06-13 Linkage self-locking explosion-proof control cabinet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910508917.5A CN110213916B (en) 2019-06-13 2019-06-13 Linkage self-locking explosion-proof control cabinet

Publications (2)

Publication Number Publication Date
CN110213916A CN110213916A (en) 2019-09-06
CN110213916B true CN110213916B (en) 2020-08-11

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Application Number Title Priority Date Filing Date
CN201910508917.5A Active CN110213916B (en) 2019-06-13 2019-06-13 Linkage self-locking explosion-proof control cabinet

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Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203966880U (en) * 2014-04-02 2014-11-26 安徽埃菲科电气设备制造有限公司 A kind of explosion-proof control mechanical interlock mechanism
CN204464835U (en) * 2015-02-17 2015-07-08 四川省南充晶塔变压器有限公司 A kind of cabinet door interlocking device of switch cabinet
CN108648935B (en) * 2018-05-31 2020-07-21 二工防爆科技股份有限公司 High explosion-proof switch board of security
CN108695079A (en) * 2018-05-31 2018-10-23 二工防爆科技股份有限公司 A kind of explosion proof control case that can be automatically cut off the power
CN208623141U (en) * 2018-08-02 2019-03-19 珠海鼎冠电气有限公司 Electrical cabinet couplet on the door lock construction

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