CN102227056B - Drawer interlocking mechanism of low-voltage load switch box - Google Patents
Drawer interlocking mechanism of low-voltage load switch box Download PDFInfo
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- CN102227056B CN102227056B CN201110094870.6A CN201110094870A CN102227056B CN 102227056 B CN102227056 B CN 102227056B CN 201110094870 A CN201110094870 A CN 201110094870A CN 102227056 B CN102227056 B CN 102227056B
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- drawer
- push rod
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- locking plate
- load switch
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Abstract
The invention provides a drawer interlocking mechanism of a low-voltage load switch box, comprising a left push rod, a right push rod and a locking plate between the left push rod and the right push rod in a drawer on the low-voltage load switch box, wherein one end of the locking plate is movably connected with an installation part which is fixed on the upper surface of a drawer bottom plate, and the other end of the locking plate corresponds to a though hole on the drawer bottom plate; the drawer bottom plate is provided with a reset part connected with the locking plate; the reset part comprises a connecting piece and a tension spring; the connecting piece is fixed on the lower surface of the drawer bottom plate; and one end of the tension spring is arranged on the connecting piece and the other end of the tension spring is connected with the locking plate. The drawer interlocking mechanism is convenient to operate and reliable in structure, can protect operators effectively, and meets requirements in safety specifications.
Description
Technical field
The present invention relates to a kind of low voltage load switch box, specifically a kind of drawer interlocking mechanism of low voltage load switch box.
Background technology
Low voltage load switch box is a kind of load control unit worked on low-voltage network line.Under present distribution technique condition, carrying out that can not be safe when power network line is charged operates, otherwise easily brings danger to operating personnel, even jeopardizes life time serious.Therefore, usually in switch-box, be provided with corresponding interlocking device, make the power supply in switch-box disconnect or connect, to realize the work that line upkeep, maintenance are carried out in first power-off again.Interlocking device is provided with in current partial switch case, but troublesome poeration, mechanism design is complicated, and volume is comparatively large, assembling difficulty.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of drawer interlocking mechanism of easy to operate, safe and reliable low voltage load switch box.
In order to solve the problems of the technologies described above, the present invention takes following technical scheme:
A kind of drawer interlocking mechanism of low voltage load switch box, the locking plate comprising the left push rod in the drawer that is arranged on low voltage load switch box, right push rod and be positioned between left push rod and right push rod, locking plate one end be fixed on the installed part activity attaching of drawer-bottom board upper surface, the other end and the through hole offered on drawer-bottom board corresponding.
Described drawer-bottom board is also provided with the return unit be connected with locking plate, this return unit comprises connector and extension spring, and connector is fixedly loaded on drawer-bottom board lower surface, and extension spring one end is loaded on connector, the other end is connected with locking plate one end.
Described installed part bottom is installed with rotating shaft, and one end movable set of the locking plate be connected with extension spring is in this rotating shaft.
On described locking plate, the position of corresponding left push rod is fixedly equiped with an alignment pin.
Described installed part upper end is fixedly equiped with No. two alignment pins for limiting locking plate stroke.
The left plate that described left push rod penetrates drawer extends in drawer, and the exposed one end fixed cover outside drawer left plate of left push rod is equipped with left washer, left push rod is also set with the left stage clip be positioned between this left washer and drawer left plate; The right plate that right push rod penetrates drawer extends in drawer, and the exposed one end fixed cover outside drawer right plate of right push rod is equipped with right washer, right push rod is also set with the right stage clip be positioned between this right washer and drawer right plate.
The upper surface of described drawer-bottom board is also fixed with left pusher bar support and right pusher bar support, left push rod is successively through drawer left plate and left pusher bar support, and right push rod is successively through drawer right plate and right pusher bar support.
Structure of the present invention is reliable, easy to operate, and only need promote left push rod and right push rod and can realize having a power failure and the work of power transmission, safe and reliable, the personal safety of available protecting staff, reaches safety standard requirements.
Accompanying drawing explanation
Accompanying drawing 1 is the perspective view after the present invention assembles mutually with the drawer of low voltage load switch box;
The main TV structure schematic diagram of the power transmission state that is in after accompanying drawing 2 the present invention and the drawer of low voltage load switch box assemble mutually;
Main TV structure schematic diagram during the interruption maintenance state that is in after accompanying drawing 3 the present invention and the drawer of low voltage load switch box assemble mutually.
Embodiment
For the ease of the understanding of those skilled in the art, below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1, a kind of drawer interlocking mechanism of low voltage load switch box, the locking plate 3 comprising the left push rod 21 in the drawer that is arranged on low voltage load switch box, right push rod 22 and be positioned between left push rod 21 and right push rod 22, locking plate 3 one end be fixed on the installed part 4 activity attaching of drawer-bottom board upper surface, the other end and the through hole 5 offered on drawer-bottom board corresponding, the position of this through hole 5 is positioned at the front upper place of the screw mandrel 18 of the bottom surface being contained in drawer-bottom board.Drawer-bottom board is also provided with the return unit be connected with locking plate 3, and this return unit comprises connector 6 and extension spring 7, and connector 6 is fixedly loaded on drawer-bottom board lower surface, and extension spring 7 one end is loaded on connector 6, the other end is connected with locking plate 3 one end.Installed part 4 bottom is installed with rotating shaft 8, and one end movable set of the locking plate 3 be connected with extension spring 7 is in this rotating shaft 8, and locking plate 3 can rotate around this rotating shaft 8.
On locking plate 3, the position of corresponding left push rod 21 is fixedly equiped with an alignment pin 91, and when promoting left push rod 21, left push rod 21 blocks an alignment pin 91.Installed part 4 upper end is fixedly equiped with No. two alignment pins 92 for limiting locking plate 3 stroke.
When left push rod 21 and right push rod 22 are installed, the left plate 10 that left push rod 21 penetrates drawer extends in drawer, the exposed one end fixed cover outside drawer left plate 10 of left push rod 21 is equipped with left washer 11, left push rod 21 is also set with the left stage clip 12 be positioned between this left washer 11 and drawer left plate 10; The right plate 13 that right push rod 22 penetrates drawer extends in drawer, and the exposed one end fixed cover outside drawer right plate 13 of right push rod 22 is equipped with right washer 14, right push rod 22 is also set with the right stage clip 15 be positioned between this right washer 14 and drawer right plate 13.
In order to make left push rod 21 and right push rod 22 more reliable and more stable, the upper surface of drawer-bottom board is also fixed with left pusher bar support 16 and right pusher bar support 17, left push rod 21 is successively through drawer left plate 10 and left pusher bar support 16, and right push rod 22 is successively through drawer right plate 13 and right pusher bar support 17.
Operating state of the present invention is as follows,
When needing interruption maintenance, as shown in Figure 3, first sub-switching operation is carried out to the on-load switch of power network line, then a rocking bar is got, rocking bar is inserted the screw mandrel being loaded on drawer-bottom board bottom surface, by counterclockwise shaking screw mandrel, the travel switch shaken on low voltage load switch box can take out rocking bar after sending the index signal that puts in place.Again to left push rod applying power to the right, left push rod level is moved right, and left push rod promotes an alignment pin on locking plate, locking plate is forced to rotate around the shaft, along with the continuous movement of left push rod, the locking plate other end moves downwardly through through hole bumping post screw hole, and extension spring is stretched; Promote right push rod with horizontal thrust left again, make right push rod block locking plate, thus locking plate is tightly blocked by left push rod and right push rod simultaneously, locking plate one end shelters from again screw hole position, now rocking bar can not insert in screw mandrel, avoids misoperation, the safety of safeguard work personnel.
When needing power transmission, as shown in Figure 2, first the horizontal thrust to right push rod is removed, right push rod automatically resets due to the elastic force being subject to the stage clip filled thereon, right push rod is made no longer to stick locking plate, remove the horizontal thrust to left push rod again, the elastic force that left push rod is subject to the stage clip filled thereon automatically resets, and makes an alignment pin on the not tight snapclose sheet of left push rod.Now locking plate is under the pulling force effect of extension spring, upwards rotates reset around the shaft, and original clip portion through through hole moves up again, and then removes blocking screw hole.Now can insert inserts in screw mandrel by rocking bar, and move in the direction of the clock screw mandrel, and drawer advances, and shakes after travel switch sends the index signal that puts in place, can take out rocking bar, complete transmission process.
Above-described embodiment is the present invention's preferably execution mode, it should be noted that, under the prerequisite not departing from inventive concept of the present invention, any apparent replacement is all within protection scope of the present invention.
Claims (2)
1. the drawer interlocking mechanism of a low voltage load switch box, the locking plate (3) comprising the left push rod (21) in the drawer that is arranged on low voltage load switch box, right push rod (22) and be positioned between left push rod and right push rod, locking plate one end be fixed on installed part (4) the activity attaching of drawer-bottom board upper surface, the other end and the through hole (5) offered on drawer-bottom board corresponding, described drawer-bottom board is also provided with the return unit be connected with locking plate, this return unit comprises connector (6) and extension spring (7), connector is fixedly loaded on drawer-bottom board lower surface, extension spring one end is loaded on connector, the other end is connected with locking plate one end, installed part bottom is installed with rotating shaft (8), one end movable set of the locking plate be connected with extension spring is in this rotating shaft, on described locking plate, the position of corresponding left push rod is fixedly equiped with an alignment pin (91), installed part upper end is fixedly equiped with No. two alignment pins (92) for limiting locking plate stroke, it is characterized in that: the left plate (10) that described left push rod penetrates drawer extends in drawer, the exposed one end fixed cover outside drawer left plate of left push rod is equipped with left washer (11), left push rod is also set with the left stage clip (12) be positioned between this left washer and drawer left plate, the right plate (13) that right push rod penetrates drawer extends in drawer, and the exposed one end fixed cover outside drawer right plate of right push rod is equipped with right washer (14), right push rod is also set with the right stage clip (15) be positioned between this right washer and drawer right plate.
2. the drawer interlocking mechanism of low voltage load switch box according to claim 2, it is characterized in that: the upper surface of described drawer-bottom board is also fixed with left pusher bar support (16) and right pusher bar support (17), left push rod is successively through drawer left plate and left pusher bar support, and right push rod is successively through drawer right plate and right pusher bar support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110094870.6A CN102227056B (en) | 2011-04-15 | 2011-04-15 | Drawer interlocking mechanism of low-voltage load switch box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110094870.6A CN102227056B (en) | 2011-04-15 | 2011-04-15 | Drawer interlocking mechanism of low-voltage load switch box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102227056A CN102227056A (en) | 2011-10-26 |
| CN102227056B true CN102227056B (en) | 2015-07-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110094870.6A Active CN102227056B (en) | 2011-04-15 | 2011-04-15 | Drawer interlocking mechanism of low-voltage load switch box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102227056B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR102020006307A2 (en) * | 2020-03-27 | 2021-09-28 | Melquisedec Francisquini | END OF SOURCE LOCK WITH HANDLE FOR CCM DRAWER |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2206055Y (en) * | 1994-08-04 | 1995-08-30 | 张君平 | Locking device for suitcase |
| CN2308689Y (en) * | 1997-07-03 | 1999-02-24 | 王鑫霞 | Anti-prizing security device of rolling shutter |
| CN201946905U (en) * | 2011-04-15 | 2011-08-24 | 广东北江开关厂有限公司 | Drawer interlocking mechanism of low voltage load switch box |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4074038B2 (en) * | 1999-11-10 | 2008-04-09 | 三菱電機株式会社 | Circuit breaker insertion / extraction device |
-
2011
- 2011-04-15 CN CN201110094870.6A patent/CN102227056B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2206055Y (en) * | 1994-08-04 | 1995-08-30 | 张君平 | Locking device for suitcase |
| CN2308689Y (en) * | 1997-07-03 | 1999-02-24 | 王鑫霞 | Anti-prizing security device of rolling shutter |
| CN201946905U (en) * | 2011-04-15 | 2011-08-24 | 广东北江开关厂有限公司 | Drawer interlocking mechanism of low voltage load switch box |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102227056A (en) | 2011-10-26 |
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Effective date of registration: 20191113 Address after: 511500 Guangdong Qingcheng District Qingyuan City, North Road No. 38 Patentee after: QINGYUAN POWER SUPPLY BUREAU, GUANGDONG POWER GRID CO., LTD. Address before: 511517 District seven, hi tech Industrial Development Zone, Guangdong, Qingyuan Patentee before: Guangdong Beijiang Switch Factory Co., Ltd. |