CN202816731U - Mechanical interlocking device of explosion-proof control box - Google Patents
Mechanical interlocking device of explosion-proof control box Download PDFInfo
- Publication number
- CN202816731U CN202816731U CN 201220474576 CN201220474576U CN202816731U CN 202816731 U CN202816731 U CN 202816731U CN 201220474576 CN201220474576 CN 201220474576 CN 201220474576 U CN201220474576 U CN 201220474576U CN 202816731 U CN202816731 U CN 202816731U
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- explosion
- control box
- proof control
- hole
- protective frame
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Abstract
The utility model discloses a mechanical interlocking device of an explosion-proof control box, comprising a locking shaft movably connected with a main switch on an explosion-proof control box door plank, a protective frame hinged with a first side wall of the explosion-proof control box door plank, and a locking device arranged close to a free end of the locking shaft. The locking device includes an elastic lock catch component fixedly arranged on a second side wall of the explosion-proof control box door plank and a press locking component fixedly arranged on a second frame edge of the protective frame. The press locking component and the elastic lock catch component are matched with each other when the protective frame is closed, and the press locking component and the elastic lock catch component are provided with through holes for the free end of the locking shaft to pass through. When the main switch is arranged on the explosion-proof control box door plank, powering-on and cover closing can be ensured not to happen at the same time and requirements of safety operation in underground mine and other dangerous occasions can be satisfied by arranging the dedicated mechanical interlocking device disclosed by the utility model.
Description
Technical field
The utility model relates to the explosion-proof control box technical field, relates in particular to a kind of mechanical interlocks that is arranged on the explosion-proof control box door-plate.
Background technology
Explosion-proof control box is mainly used in the hazardous areas such as explosive gas atmosphere, combustible dust.According to the regulation among the GB3836, the control circuit voltage of mine anti-explosion control cabinet need be taked mechanical locking structure when＞127V, can not uncap when the energising to guarantee it, can not switch on when uncapping.
At present, the master switch of existing mine anti-explosion control cabinet all is arranged on the side, and master switch is arranged on the existing problem in side and is: cause the width of whole explosion-proof control box larger, it is large to take up room.Therefore, on the necessary door-plate that master switch is arranged on explosion-proof control box, in order to reduce the width of explosion-proof control box, the space that it is taken is little, and compact conformation.When on the door-plate that master switch is arranged on explosion-proof control box, need the special-purpose mechanical interlocks of design one cover.
Summary of the invention
Technical problem to be solved in the utility model is: be arranged on situation on the explosion-proof control box door-plate for master switch, a cover explosion-proof control box mechanical interlocks is provided, can not uncap when guaranteeing to switch on, can not switch on when uncapping.
For solving the problems of the technologies described above, the technical solution of the utility model is: the explosion-proof control box mechanical interlocks comprises:
Lock shaft, described lock shaft are slidably disposed on the door-plate of explosion-proof control box, and described lock shaft has link and free end, and described link is flexibly connected with the master switch that is arranged on the explosion-proof control box door-plate;
Protective frame, the first edge of described protective frame and the first side wall of explosion-proof control box door-plate are articulated and connected;
Locking device, described locking device is near the free end setting of described lock shaft, and described locking device comprises
Elastic lock assembly, described elastic lock assembly are fixedly installed on second sidewall relative with described the first side wall of explosion-proof control box door-plate,
Press latch assembly, described pressing on second edge relative with described the first edge that latch assembly is fixedly installed on described protective frame, when the described protective frame of closure, the described latch assembly of pressing matches with described elastic lock assembly,
Described pressing is equipped with on latch assembly and the described elastic lock assembly when pressing the described through hole that passes for the free end of described lock shaft when pressing latch assembly.
As preferably, described elastic lock assembly comprises: the interlocking guide, described interlocking guide is fixedly installed on the second sidewall of explosion-proof control box door-plate, described interlocking guide is the tubular structure of end sealing other end opening, its blind end is provided with the through hole that passes for following interlocking latch, and the sidewall of described interlocking guide is provided with the interlocking guide through hole that the free end for described lock shaft passes; Interlocking latch, described interlocking latch are installed in the described interlocking guide, and described interlocking latch has force side and positive stop end, and described positive stop end stretches out outside the through hole of described interlocking latch cover blind end, and described positive stop end is provided with limiting through hole, described limiting through hole interpolation limited location pin; Back-moving spring, described back-moving spring are arranged in the described interlocking guide and are set on the described interlocking latch.
As preferably, the described latch assembly of pressing comprises: channel, and described channel cover is buckled and is fixed on the described protective frame, and described protective frame is provided with the breach that described lock shaft altogether passes through corresponding to described channel place; Connecting plate, described connecting plate is fixed in the outside of described channel; The cylindricality piece, described cylindricality piece is fixed on the described connecting plate, and described cylindricality piece is provided with cylindricality piece through hole; When the described protective frame of closure and when pressing described connecting plate, described cylindricality piece through hole and described interlocking guide through hole are in the position of coaxial line.
As preferably, described mechanical interlocks also comprises a linking arm, and an end of described linking arm is fixedly connected with described master switch, and the other end of described linking arm is provided with the linking arm through hole; Described lock shaft comprise main part and with the vertically disposed connecting portion of described main part, described lock shaft is the L shape, the connecting portion of described lock shaft inserts in the described linking arm through hole.
As preferably, be provided with the guide sleeve that the main part for described lock shaft passes at the door-plate of explosion-proof control box.
As preferably, the cross section of the edge of described protective frame structure in the form of slot, when described protective frame was in closure state, the fastening bolt that described groove shape radome structure is buckled on the explosion-proof control box door-plate was outside.
Owing to adopted technique scheme, the beneficial effects of the utility model are: because explosion-proof control box mechanical interlocks of the present utility model comprises: the lock shaft that is flexibly connected with master switch on the explosion-proof control box door-plate, the protective frame hinged with the first side wall of explosion-proof control box door-plate, with the locking device that arranges near the lock shaft free end, this locking device comprises the elastic lock assembly that is fixedly installed on explosion-proof control box door-plate the second sidewall and the latch assembly of pressing that is fixedly installed on protective frame the second edge, when closed protective frame, press latch assembly and match with the elastic lock assembly, press and be equipped with the through hole that the free end for lock shaft passes on latch assembly and the elastic lock assembly.Be provided with the explosion-proof control box of mechanical interlocks of the present utility model, during initial condition, master switch on the explosion-proof control box door-plate is in the position of " dividing ", behind the closed protective frame, the elastic lock module position that is fixed on the pressing latch assembly and being fixed in door-plate the second sidewall on the protective frame is corresponding, manually press latch assembly with hand, make and press latch assembly and overlap with lead to the hole site on the elastic lock assembly, at this moment, manual master switch, it is forwarded to the position of " closing ", be in "on" position this moment, in the master switch rotation process, the lock shaft that is flexibly connected with master switch axially outwards slides along it, and its free end insertion is also stretched out the through hole of pressing on latch assembly and the elastic lock assembly, bearer bar and explosion-proof control box door-plate are pinned and can not open, because the framework of bearer bar shelters from the fastening bolt of explosion-proof control box door periphery, thereby can not open door-plate, the purpose that can not uncap when having realized energising; When manual master switch; it is forwarded to the position of " dividing "; be in off-position this moment; in the master switch rotation process; the lock shaft that is flexibly connected with master switch is along its axial inside slip rollback; its free end withdraws from the through hole of pressing on latch assembly and the elastic lock assembly; through hole is in not coincidence status, because the elastic lock assembly is to the barrier effect of lock shaft, lock shaft can not normal travel; even this moment is master switch manually; master switch can not be forwarded to the position of " closing ", bearer bar can be opened, unclamp the fastening bolt of explosion-proof control box door periphery; door-plate can be opened and carry out Maintenance and Repair etc., realize the purpose that to switch on when uncapping.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is protective frame and press the structural representation of latch assembly among Fig. 1;
Fig. 3 is the A-A cross-sectional schematic among Fig. 2;
Fig. 4 is the B-B cross-sectional schematic among Fig. 2;
Fig. 5 is the E-E cross-sectional schematic (being the structure cross-sectional schematic of elastic lock assembly) among Fig. 1;
Fig. 6 is the structural representation of pressing latch assembly among Fig. 1;
Fig. 7 is that schematic diagram is looked on the left side among Fig. 6;
Fig. 8 is the schematic top plan view among Fig. 6;
Fig. 9 is the lock shaft structural representation among Fig. 1;
Among the figure: the 1-door-plate; The 2-protective frame; The 3-lock shaft; The 31-main part; The 32-connecting portion; The 4-guide sleeve; The 5-linking arm; 51-linking arm through hole; The 6-hinge; The 7-master switch; 8-elastic lock assembly; The 81-guide of interlocking; 811-interlocking guide through hole; The 82-back-moving spring; The 83-interlocking latch; The 84-spacer pin; 9-presses latch assembly; The 91-channel; The 92-connecting plate; 93-cylindricality piece; 931-cylindricality piece through hole; The 10-fastening bolt.
Embodiment
Below in conjunction with drawings and Examples the utility model is made further non-limitative illustration.
As shown in Figure 1, embodiment for the utility model explosion-proof control box mechanical interlocks, the explosion-proof control box mechanical interlocks of present embodiment comprises: be slidably disposed on the lock shaft 3 on the explosion-proof control box door-plate 1, this lock shaft 3 has link and free end, and its link is flexibly connected with the master switch 7 that is arranged on the explosion-proof control box door-plate 1; A square protective frame 2, the first edge of this protective frame 2 and the first side wall of explosion-proof control box door-plate 1 are articulated and connected by hinge 6, and when this protective frame 2 closure, the edge around it shelters from the fastening bolt 10 of explosion-proof control box door-plate 1 periphery; Free end near lock shaft 3 is provided with locking device, this locking device comprises elastic lock assembly 8 and presses latch assembly 9, wherein, elastic lock assembly 8 is fixedly installed on second sidewall relative with its first side wall of explosion-proof control box door-plate 1, press on second edge relative with its first edge that latch assembly 9 is fixedly installed on protective frame 2, when closed protective frame 2, press latch assembly 9 and match with elastic lock assembly 8, the through hole that passes at the free end of pressing latch assembly 9 and elastic lock assembly 8 and be equipped with confession lock shaft 3 when press latch assembly 9.
As shown in Figure 5, in the present embodiment, the elastic lock assembly comprises: be fixedly installed on the interlocking guide 81 on explosion-proof control box door-plate 1 second sidewall, interlocking guide 81 is the tubular structure of end sealing other end opening, its blind end is provided with the through hole that passes for following interlocking latch 83, is provided with the interlocking guide through hole 811 that the free end for lock shaft 3 passes at the sidewall of interlocking guide 81; In interlocking guide 81, interlocking latch 83 is installed, this interlocking latch 83 has force side and positive stop end, and its positive stop end stretches out outside the through hole of interlocking guide 81 blind ends, is provided with limiting through hole at positive stop end, limiting through hole interpolation limited location pin 84, this spacer pin 84 adopts split pin; In interlocking guide 81 back-moving spring 82 that is set on the interlocking latch 83 is installed, back-moving spring 82 is stage clip.
Such as Fig. 6, Fig. 7 and shown in Figure 8, in the present embodiment, pressing latch assembly comprises: the channel 91 on protective frame 2 second edges is detained and be weldingly fixed on to cover, the cross section of channel 91 can be the transverse shape of semi arch shape, bearing shell shape or channel-section steel, wherein, the edge of protective frame 2 is provided with the breach (as shown in Figure 3) that common lock shaft 3 passes through corresponding to channel 91 places; Be fixed with connecting plate 92 in the outside of channel 91, in the present embodiment, connecting plate 92 comprise transverse slat and with the vertically disposed riser of transverse slat, transverse slat and riser can be formed by the bending of plate, also can be that two boards is welded as a whole, connecting plate 92 roughly is the L shape; Transverse slat at connecting plate 92 is fixed with cylindricality piece 93, is provided with the cylindricality piece through hole 931 that radially extends along it at cylindricality piece 93; When closed protective frame 2 and when pressing the transverse slat of connecting plate 92, cylindricality piece through hole 931 and interlocking guide through hole 811 are in the position of coaxial line, cylindricality piece through hole 931(has been shown among Fig. 5 has dotted) situation during with interlocking guide through hole 811 coaxial line.
As shown in Figure 1, the mechanical interlocks of present embodiment also comprises a linking arm 5, and an end of this linking arm 5 and master switch 7 are fixedly connected with through bolt, is provided with microscler linking arm through hole 51 at the other end of linking arm 5.As shown in Figure 9, the lock shaft 3 of present embodiment comprise main part 31 and with main part 31 vertically disposed connecting portions 32, whole lock shaft 3 roughly is the L shape, the end of the connecting portion 31 of lock shaft 3 is inserted in the linking arm through hole 51.
As shown in Figure 1, on the door-plate 1 of explosion-proof control box, also be provided with the guide sleeve 4 that the main part for lock shaft 3 passes.
Such as Fig. 2, Fig. 3 and shown in Figure 4, the cross section of the edge of protective frame 2 structure in the form of slot, when protective frame 2 was in closure state, groove shape radome structure was buckled in fastening bolt 10 outsides on the explosion-proof control box door-plate 1.
The operation principle of explosion-proof control box mechanical interlocks of the present utility model: during initial condition; master switch 7 on the explosion-proof control box door-plate 1 is in the position of " dividing " shown in Fig. 1; behind closed protective frame 2; elastic lock assembly 8 positions of being fixed on the pressing latch assembly 9 and being fixed in door-plate 1 second sidewall on the protective frame 2 are corresponding; cylindricality piece 93 inserts in the interlocking guide 81; manually press the transverse slat of connecting plate 92 with hand; cylindricality piece 93 forces in the force side of interlocking latch 83; and overcome the elastic force of back-moving spring 82; make the interlocking guide through hole 811 on interlocking guide 81 sidewalls be in coaxial position with the cylindricality piece through hole 931 that cylindricality piece 93 footpaths make progress; at this moment; rotate counterclockwise master switch 7 with hand; it is screwed into the position of " closing "; this moment, explosion-proof control box was in "on" position; in master switch 7 rotation processes; outwards slide along guide sleeve 4 through the lock shaft 3 that linking arm 5 is flexibly connected with master switch 7; its free end inserts and stretches out cylindricality piece through hole 931 and the guide through hole 811 of interlocking; thereby bearer bar 2 and explosion-proof control box door-plate 1 are pinned and can not open; because the edge of the groove shape structure of bearer bar 2 shelters from the fastening bolt 10 of explosion-proof control box door-plate 1 periphery; check or keep in repair thereby can not open door-plate 1, the purpose that can not uncap when having realized energising.When manual master switch 7; it is gone back to clockwise the position of " dividing "; be in off-position this moment; in master switch 7 rotation processes; the lock shaft 3 that is flexibly connected through linking arm 5 with master switch 7 is along guide sleeve 4 inside slip rollbacks; its free end withdraws from cylindricality piece through hole 931 and interlocking guide through hole 811; under the resilient force of back-moving spring 82; interlocking latch 83 resets and cylindricality piece 93 is outwards pushed up; cylindricality piece through hole 931 and interlocking guide through hole 811 are in not coincidence status, and the free end of lock shaft 3 is subject to barrier effect, can not normal travel; namely use this moment hand to rotate master switch 7; it can not be forwarded to the position of " closing ", bearer bar 2 can be opened, unclamp the fastening bolt 10 of explosion-proof control box door-plate 1 periphery; door-plate 1 can be opened and carry out Maintenance and Repair etc., realize the purpose that to switch on when uncapping.
Be arranged on situation on the explosion-proof control box door-plate for master switch, special-purpose machinery interlock of the present utility model is set after, can not uncap in the time of can guaranteeing to switch on, can not switch on when uncapping, guaranteed the safety operation requirement of inferior hazardous area, ore deposit.
The above only is giving an example of the utility model preferred embodiments, and the part of wherein not addressing in detail is those of ordinary skills' common practise.Protection range of the present utility model is as the criterion with the content of claim, and any equivalent transformation that carries out based on technology enlightenment of the present utility model is also within protection range of the present utility model.
Claims (6)
1. the explosion-proof control box mechanical interlocks is characterized in that, comprising:
Lock shaft, described lock shaft are slidably disposed on the door-plate of explosion-proof control box, and described lock shaft has link and free end, and described link is flexibly connected with the master switch that is arranged on the explosion-proof control box door-plate;
Protective frame, the first edge of described protective frame and the first side wall of explosion-proof control box door-plate are articulated and connected;
Locking device, described locking device is near the free end setting of described lock shaft, and described locking device comprises
Elastic lock assembly, described elastic lock assembly are fixedly installed on second sidewall relative with described the first side wall of explosion-proof control box door-plate,
Press latch assembly, described pressing on second edge relative with described the first edge that latch assembly is fixedly installed on described protective frame, when the described protective frame of closure, the described latch assembly of pressing matches with described elastic lock assembly,
Described pressing is equipped with on latch assembly and the described elastic lock assembly when pressing the described through hole that passes for the free end of described lock shaft when pressing latch assembly.
2. explosion-proof control box mechanical interlocks as claimed in claim 1 is characterized in that, described elastic lock assembly comprises:
The interlocking guide, described interlocking guide is fixedly installed on the second sidewall of explosion-proof control box door-plate, described interlocking guide is the tubular structure of end sealing other end opening, its blind end is provided with the through hole that passes for following interlocking latch, and the sidewall of described interlocking guide is provided with the interlocking guide through hole that the free end for described lock shaft passes;
Interlocking latch, described interlocking latch are installed in the described interlocking guide, and described interlocking latch has force side and positive stop end, and described positive stop end stretches out outside the through hole of described interlocking latch cover blind end, and described positive stop end is provided with limiting through hole, described limiting through hole interpolation limited location pin;
Back-moving spring, described back-moving spring are arranged in the described interlocking guide and are set on the described interlocking latch.
3. explosion-proof control box mechanical interlocks as claimed in claim 2 is characterized in that, the described latch assembly of pressing comprises:
Channel, described channel cover is buckled and is fixed on the described protective frame;
Connecting plate, described connecting plate is fixed in the outside of described channel;
The cylindricality piece, described cylindricality piece is fixed on the described connecting plate, and described cylindricality piece is provided with cylindricality piece through hole;
When the described protective frame of closure and when pressing described connecting plate, described cylindricality piece through hole and described interlocking guide through hole are in the position of coaxial line.
4. explosion-proof control box mechanical interlocks as claimed in claim 1, it is characterized in that: described mechanical interlocks also comprises a linking arm, and an end of described linking arm is fixedly connected with described master switch, and the other end of described linking arm is provided with the linking arm through hole;
Described lock shaft comprise main part and with the vertically disposed connecting portion of described main part, described lock shaft is the L shape, the connecting portion of described lock shaft inserts in the described linking arm through hole.
5. explosion-proof control box mechanical interlocks as claimed in claim 4 is characterized in that: be provided with the guide sleeve that the main part for described lock shaft passes at the door-plate of explosion-proof control box.
6. explosion-proof control box mechanical interlocks as claimed in claim 1, it is characterized in that: the cross section of the edge of described protective frame structure in the form of slot, when described protective frame was in closure state, the fastening bolt that described groove shape radome structure is buckled on the explosion-proof control box door-plate was outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220474576 CN202816731U (en) | 2012-09-17 | 2012-09-17 | Mechanical interlocking device of explosion-proof control box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220474576 CN202816731U (en) | 2012-09-17 | 2012-09-17 | Mechanical interlocking device of explosion-proof control box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202816731U true CN202816731U (en) | 2013-03-20 |
Family
ID=47875576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220474576 Withdrawn - After Issue CN202816731U (en) | 2012-09-17 | 2012-09-17 | Mechanical interlocking device of explosion-proof control box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202816731U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102867666A (en) * | 2012-09-17 | 2013-01-09 | 潍坊华光通讯股份有限公司 | Mechanical interlock device of explosion-proof control box |
-
2012
- 2012-09-17 CN CN 201220474576 patent/CN202816731U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102867666A (en) * | 2012-09-17 | 2013-01-09 | 潍坊华光通讯股份有限公司 | Mechanical interlock device of explosion-proof control box |
| CN102867666B (en) * | 2012-09-17 | 2014-10-29 | 潍坊华光通讯股份有限公司 | Mechanical interlock device of explosion-proof control box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130320 Effective date of abandoning: 20141029 |
|
| RGAV | Abandon patent right to avoid regrant |