CN102437712A - Frequency converter flameproof housing having door lock - Google Patents
Frequency converter flameproof housing having door lock Download PDFInfo
- Publication number
- CN102437712A CN102437712A CN2011103157913A CN201110315791A CN102437712A CN 102437712 A CN102437712 A CN 102437712A CN 2011103157913 A CN2011103157913 A CN 2011103157913A CN 201110315791 A CN201110315791 A CN 201110315791A CN 102437712 A CN102437712 A CN 102437712A
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- Prior art keywords
- frequency converter
- housing
- door lock
- reversing handle
- flame proof
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Abstract
The invention discloses a flameproof housing of a frequency converter, wherein the flameproof housing has a door lock. The flameproof housing comprises a housing, a cavity door and a door lock, wherein the cavity door and the door lock are installed in the housing. The door lock includes a reversing handle that is installed on the housing and is used for changing a working state of a frequency converter; the reversing handle is fixed on the housing by a spindle and is provided with a locker. A support is fixedly installed on the housing; a lock tongue that is movably connected with the support is installed on the support. When the reversing handle is rotated to a disconnected position of the frequency converter, the lock tongue is opposite to the locker position that is opened on the reversing handle. According to the invention, the flameproof housing has a simple structure; further, only when a reversing handle is rotated to a disconnected position of a frequency converter can a cavity door be opened; a working state of the reversing handle is fixed by a door lock, so that a function of safe opening or closing of the cavity door is realized and thus personal safety of construction personnel on the site can be ensured.
Description
Technical field
The present invention relates to the housing of frequency converter, be meant a kind of frequency converter flame proof housing especially with door lock.
Background technology
Be flooded with a large amount of inflammable and explosive methane gas under the coal mine, these gases are easy to blast under such as conditions such as high temperature, burning-points.Mine-used frequency-converter adopts one deck housing that frequency converter and external isolation are come, and its objective is the methane gas that prevents to light when frequency converter from blasting the outside.On the flame proof housing of mine-used frequency-converter, door lock is installed, is used to control the open and close of the chamber door on the flame proof housing.According to standard GB 3836 and safety of coal mines supervision rules, on the chamber door of mine explosion-suppression frequency converter flame proof housing door lock must be arranged.
This door lock should make the reversing handle of mine-used frequency-converter be under " disjunction " state, and the chamber door just allows to be opened; When the reversing handle of mine-used frequency-converter in running order (power frequency or frequency conversion), guarantee that the chamber door can't be opened, thereby prevent operating personnel to be strayed in the flame proof housing and cause security incident.
At present the chamber door of frequency converter flame proof housing drives chamber door translation through eccentric shaft, realizes holding or throwing off of chamber door and flame proof housing, thereby opens or closes the chamber door; The the opening or closing in the process of door in the chamber do not influence the handle operating state of frequency converter.Therefore, above-mentioned housing lacks the function that opens or closes that realizes the chamber door according to the operating state of reversing handle.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of frequency converter flame proof housing, lack the problem that opens or closes that realizes the chamber door according to the operating state of reversing handle to solve above-mentioned flame proof housing with door lock.
For addressing the above problem, the present invention adopts following technical scheme:
A kind of frequency converter flame proof housing with door lock comprises housing and is installed on chamber door and the door lock on the housing; Said door lock comprises and is installed in the reversing handle that is used to switch said frequency converter operating state on the said housing, and this reversing handle is fixed on the said housing through rotating shaft, and said reversing handle is provided with locker; Be installed with bearing on the said housing, the dead bolt with its flexible connection is installed on the said bearing; When said reversing handle turned to the off-state of frequency converter, dead bolt was over against the locker position that is opened on the reversing handle.
The present invention further improves and is: said locker is the blind hole that is identical bearing of trend with said reversing handle.
The present invention further improves and is: said dead bolt is for having externally threaded threaded guide rod;
The present invention further improves and is: said bearing is the thread support with screwed hole;
The present invention further improves and is: said threaded guide rod passes said screwed hole, forms with said thread support to be threaded.
The present invention further improves and is: the circumference of said threaded guide rod is provided with and is used for the Ka Tai that spanner holds.
The present invention further improves and is: the corresponding said reversing handle of the disjunction state of said frequency converter rotates and is the transverse horizontal position.
The present invention further improves and is: be connected through a pair of first hinge between said chamber door and the said housing.
The present invention further improves and is: the side of said chamber door also is equipped with second hinge that drives its translation, has eccentric shaft.
The present invention further improves and is: reversing handle comprises cylinder-shaped end and the rotating handles that is connected cylinder-shaped end, and said cylinder-shaped end is fixed on the said housing through rotating shaft, and said locker is arranged on the sidewall of said cylinder-shaped end.
The present invention further improves and is: the sidewall of chamber door is provided with the blind hole that supplies dead bolt to stretch into.
The present invention further improves and is: when reversing handle turned to the operating state of frequency converter, said dead bolt stretched in the blind hole of chamber reveal wall.
With respect to prior art, the present invention has the following advantages: flame proof housing of the present invention, and through a door lock is set on housing, this door lock comprises reversing handle, bearing and dead bolt; Reversing handle is installed in and is used to switch the frequency converter operating state on the housing, and this reversing handle is fixed on the housing through rotating shaft, and reversing handle is provided with locker; Bearing is fixedly mounted on the housing, and the dead bolt with its flexible connection is installed on the bearing; When reversing handle turned to the off-state of frequency converter, dead bolt was over against the locker position that is opened on the reversing handle; Can rotate dead bolt and dead bolt is changed in the reversing handle through spanner, the sidewall of dead bolt door from the chamber detaches simultaneously; Make the wall door only when reversing handle rotates to the open position of frequency converter like this, can open the chamber door; The present invention passes through the fixedly operating state of reversing handle of door lock, and the function that the safety of realization chamber door opens or closes is avoided security incident.
Description of drawings
Fig. 1 is the front view of the chamber door that connects on the mining flame proof housing among the embodiment;
Fig. 2 is the structure chart at the door lock position of installing on Fig. 1 middle shell;
Fig. 3 is the structural representation of threaded guide rod and reversing handle among Fig. 2;
Fig. 4 is the vertical view of the chamber door that connects on the mine explosion-suppression housing among the embodiment;
Fig. 5 is an I place broken section zoomed-in view among Fig. 3 among the embodiment;
Fig. 6 is an II place broken section zoomed-in view among Fig. 3 among the embodiment.
Embodiment
For clearly demonstrating the technical scheme among the present invention, provide preferred embodiment below and be described with reference to the accompanying drawings.
Referring to Fig. 1, the frequency converter flame proof housing with door lock in the preferred embodiment of the invention comprises: chamber door 1 and door lock are installed on housing;
Referring to Fig. 2, door lock comprises: be installed in the reversing handle 10 that is used to switch the frequency converter operating state on the housing, an end of reversing handle 10 is cylindrical, and the center of circle of this cylinder-shaped end is fixed on the housing through rotating shaft, offers locker on the circumference of cylinder-shaped end;
Be installed with bearing on the housing, the dead bolt with its flexible connection is installed on the bearing;
On-state and chamber door 1 that reversing handle 10 turns to frequency converter are closed condition, and the position on an end of dead bolt and the circumference of reversing handle 10 except that locker contacts, and the other end of dead bolt contacts with the side of chamber door 1;
Preferably, locker is for being the blind hole 6 of identical bearing of trend among Fig. 2 with reversing handle 10.
Preferably, dead bolt is for having externally threaded threaded guide rod 7;
Bearing is the thread support 8 with screwed hole;
Threaded guide rod 7 passes thread support 8 upper screwed holes, forms with thread support 8 to be threaded.
Be formed with on the circumference of threaded guide rod 7 and be used for the card platform 9 that spanner holds.
On the housing of reversing handle 10 positions, third gear direction board 5 is installed, be designated " power frequency ", " frequency conversion ", " disjunction " respectively; Wherein " power frequency ", " frequency conversion " are charged operating state; Be on-state, " disjunction " is outage non operating state, i.e. off-state.
When reversing handle 10 is the level of state, point to " disjunction " mode bit of third gear state direction board 5, referring to Fig. 3, the axis in the hole of blind hole 6 and the axis of threaded guide rod 7 are coaxial state at this moment.External spanner holds card platform 9 and rotates threaded guide rod 7; Rotation and screw thread guiding through guide rod 7; Threaded guide rod 7 can move right gradually, gets in the blind hole 6 in reversing handle 10 left sides, and the displacement that screws out to the right along with threaded guide rod 7 increases gradually; Reversing handle 10 can be limited in " disjunction " mode bit by threaded guide rod 7, thereby makes reversing handle 10 can not turn to the position of " power frequency " or " frequency conversion " electriferous state.
When the displacement that screws out to the right when threaded guide rod 7 reached maximum, threaded guide rod 7 was away from the side of chamber door 1.Operating grip 23 on second hinge 22 among outside pull-up Fig. 1; Make 23 the axis of operating grip and the axis of second hinge axis 22 be vertical relation; Rotations can take place in rotating operation handle 23, the second hinge axis 22 on the plane that is parallel to the chamber door, and the boss that can drive self two ends rotates.Because second hinge axis 22 has the eccentric shaft of boss for two ends, the meeting of boss produces displacement, is subjected to displacement 1 translation of push chamber door in the horizontal direction.
Chamber door 1 is that through relevant position on self side and side with end face of flange and the flame proof housing one has the side of end face of flange and the relation of holding each other of a side forms the state that holds when closure state.
Referring to Fig. 4, Fig. 5, second head clamp 4 is installed on the flame proof housing, end face of flange second head clamp 4 in flame proof housing left side is affixed through bolt, and with chamber door 1 on the left side of first head clamp 3 hold and be connected; Referring to Fig. 4, Fig. 6, the end face of flange on right side is connected through bolt with first head clamp 3 on the chamber door 1, and holds with the right edge of second head clamp 4 and to be connected.
When chamber door 1 moves to maximum displacement to the right; On this moment chamber door 1 on the left side of first head clamp 3 and the flame proof housing end face of flange in second head clamp, 4 left sides stagger; On the flame proof housing on the right edge of second head clamp 4 and the chamber door 1 end face of flange on first head clamp, 3 right sides stagger, this moment, chamber door 1 serve as a rotating opening with a pair of first hinge 21.
After chamber door 1 closure; Can threaded guide rod 7 be screwed out left; Threaded guide rod 7 can be moved to the left gradually, and the side of the chamber door 1 after the threaded guide rod 7 contact closures screws out in the blind hole 6 in reversing handle 10 left sides simultaneously; Thereby make reversing handle 10 can turn to the position of " power frequency " or " frequency conversion " electriferous state, the bearing of trend of reversing handle 10 points to " power frequency " or " frequency conversion " position of third gear state direction board 5 at this moment.
Above implementation is not unique, and handle changes to off-state with the frequency converter state, maybe be towards any direction; Such as vertically; Tilt etc., as long as when off-state, the blind hole on the handle circular end is relative with the threaded guide rod position; The axially bored line and the threaded guide rod central axis that are blind hole are coaxial state, and threaded guide rod can extend in the blind hole and get final product.
Flame proof housing among the embodiment can pass through the fixedly operating state of reversing handle of door lock, and the function that the safety of realization chamber door opens or closes is avoided security incident.
For the housing of being set forth among each embodiment of the present invention, all within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the frequency converter flame proof housing with door lock is characterized in that, comprises housing and is installed on chamber door and the door lock on the housing;
Said door lock comprises and is installed in the reversing handle that is used to switch said frequency converter operating state on the said housing, and this reversing handle is fixed on the said housing through rotating shaft, and said reversing handle is provided with locker;
Be installed with bearing on the said housing, the dead bolt with its flexible connection is installed on the said bearing;
When said reversing handle turned to the off-state of frequency converter, dead bolt was over against the locker position that is opened on the reversing handle.
2. a kind of frequency converter flame proof housing with door lock according to claim 1 is characterized in that, said locker is the blind hole that is identical bearing of trend with said reversing handle.
3. a kind of frequency converter flame proof housing with door lock according to claim 2 is characterized in that said dead bolt is for having externally threaded threaded guide rod;
Said bearing is the thread support with screwed hole;
Said threaded guide rod passes said screwed hole, forms with said thread support to be threaded.
4. a kind of frequency converter flame proof housing with door lock according to claim 3 is characterized in that the circumference of said threaded guide rod is provided with and is used for the Ka Tai that spanner holds.
5. a kind of frequency converter flame proof housing with door lock according to claim 2 is characterized in that, the corresponding said reversing handle of the disjunction state of said frequency converter rotates and is the transverse horizontal position.
6. a kind of frequency converter flame proof housing with door lock according to claim 1 is characterized in that, is connected through a pair of first hinge between said chamber door and the said housing.
7. a kind of frequency converter flame proof housing with door lock according to claim 6 is characterized in that, the side of said chamber door also is equipped with second hinge that drives its translation, has eccentric shaft.
8. a kind of frequency converter flame proof housing according to claim 1 with door lock; It is characterized in that; Reversing handle comprises cylinder-shaped end and the rotating handles that is connected cylinder-shaped end; Said cylinder-shaped end is fixed on the said housing through rotating shaft, and said locker is arranged on the sidewall of said cylinder-shaped end.
9. according to each described a kind of frequency converter flame proof housing in the claim 1 to 8, it is characterized in that the sidewall of chamber door is provided with the blind hole that supplies dead bolt to stretch into door lock.
10. a kind of frequency converter flame proof housing with door lock according to claim 9 is characterized in that when reversing handle turned to the operating state of frequency converter, said dead bolt stretched in the blind hole of chamber reveal wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103157913A CN102437712A (en) | 2011-10-18 | 2011-10-18 | Frequency converter flameproof housing having door lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103157913A CN102437712A (en) | 2011-10-18 | 2011-10-18 | Frequency converter flameproof housing having door lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102437712A true CN102437712A (en) | 2012-05-02 |
Family
ID=45985626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103157913A Pending CN102437712A (en) | 2011-10-18 | 2011-10-18 | Frequency converter flameproof housing having door lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102437712A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201122528Y (en) * | 2007-12-05 | 2008-09-24 | 阜新金昊空压机有限公司 | Dynamoelectric association closedown explosion-proof control box |
| US7518076B1 (en) * | 2008-04-01 | 2009-04-14 | Eaton Corporation | Electrical switching apparatus, and charging assembly and interlock assembly therefor |
| CN201984976U (en) * | 2011-01-20 | 2011-09-21 | 江苏八达真空电气有限公司 | Mine explosion-proof combined switch with locking function |
-
2011
- 2011-10-18 CN CN2011103157913A patent/CN102437712A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201122528Y (en) * | 2007-12-05 | 2008-09-24 | 阜新金昊空压机有限公司 | Dynamoelectric association closedown explosion-proof control box |
| US7518076B1 (en) * | 2008-04-01 | 2009-04-14 | Eaton Corporation | Electrical switching apparatus, and charging assembly and interlock assembly therefor |
| CN201984976U (en) * | 2011-01-20 | 2011-09-21 | 江苏八达真空电气有限公司 | Mine explosion-proof combined switch with locking function |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C12 | Rejection of a patent application after its publication | ||
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Application publication date: 20120502 |