CN107221869B - Propelling interlocking mechanism of low-voltage switch cabinet - Google Patents
Propelling interlocking mechanism of low-voltage switch cabinet Download PDFInfo
- Publication number
- CN107221869B CN107221869B CN201710618613.5A CN201710618613A CN107221869B CN 107221869 B CN107221869 B CN 107221869B CN 201710618613 A CN201710618613 A CN 201710618613A CN 107221869 B CN107221869 B CN 107221869B
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- sliding
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- 230000007246 mechanism Effects 0.000 title claims abstract description 49
- 230000005540 biological transmission Effects 0.000 claims abstract description 42
- 238000012360 testing method Methods 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 2
- 230000009977 dual effect Effects 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 238000005192 partition Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
- H02B11/127—Withdrawal mechanism
- H02B11/133—Withdrawal mechanism with interlock
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
- H02B11/173—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal drawer type
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanisms For Operating Contacts (AREA)
Abstract
The invention discloses a propelling interlocking mechanism of a low-voltage switch cabinet, which comprises a propelling mechanism and an interlocking mechanism, wherein the propelling mechanism comprises a rotary screw rod, and a threaded mounting plate is provided with a screw rod hole at one end, close to the outer side, of the drive screw rod; the interlocking mechanism comprises a sliding sheet provided with a shielding part and a transmission unit which drives the sliding sheet to move towards the direction close to the screw hole so that the shielding part can shield the screw hole; the interlocking mechanism further comprises a locking disc which is in linkage with the rotating screw, a locking block is further arranged on the sliding plate, a notch capable of accommodating the locking block is formed in the locking disc, the locking block can integrally move along with the sliding plate, and when the shielding part shields the screw hole, the locking block enters the notch. By adopting the technical scheme, the structure is simplified under the dual functions of shielding and locking, so that the whole device is more compact, and the production cost is reduced.
Description
Technical Field
The invention relates to a propelling interlocking mechanism of a low-voltage switch cabinet, and belongs to the technical field of low-voltage extraction type switch equipment.
Background
In modern distribution network and engineering construction, the pull-out type low-voltage distribution cabinet is widely applied to distribution systems of power plants, power substations, factories and mining enterprises, high-rise buildings and other application occasions. The power distribution cabinet plays an important role in power distribution, motor control and electric energy conversion, distribution and control of lighting lamp power distribution equipment. The power distribution cabinet has the advantages of space saving, reliable operation, convenient installation and maintenance, strong breaking capacity, multiple outgoing lines and the like. Because of its special operating characteristics, strict requirements are placed on the design of the power distribution cabinet in the power distribution industry. In the operation, overhaul and maintenance processes of the drawer type low-voltage switch cabinet, the switch cabinet has the function of preventing misoperation due to the consideration of electric industry work safety. The safety of the switch cabinet is improved by using a closing interlocking mechanism in the current market, for example, a sliding plate for shielding a crank hole is arranged in a pushing interlocking mechanism of a low-voltage power distribution cabinet disclosed in Chinese patent document CN104953497B, and the sliding plate is driven to move by rotating a crank arm, so that the crank hole is shielded, a crank cannot be inserted into a crank Kong Duichuan to rotate by a screw rod, and in addition, a locking rod can be inserted into a corresponding positioning groove for positioning after passing through the opening along with the rotation of the crank arm in a mode of arranging an opening on a front bracket. The propelling interlocking mechanism of the low-voltage switch cabinet in the prior art has complex structure and higher production cost under the dual function of shielding the crank hole and the locking position.
Disclosure of Invention
It is therefore an object of the present invention to provide a push interlock mechanism of a low voltage switchgear capable of simplifying a structure while satisfying a dual function of shielding a screw hole for driving a rotary screw to rotate and locking a position of the rotary screw.
In order to achieve the above purpose, the invention provides a push interlocking mechanism of a low-voltage switch cabinet, which comprises a push mechanism and an interlocking mechanism, wherein the push mechanism comprises a rotary screw and a mounting plate with threads, one end of the transmission screw, which is close to the outer side, is provided with a screw hole, and the screw hole is used for inserting a rotary tool capable of driving the transmission screw to rotate; the locking mechanism comprises a sliding sheet provided with a shielding part and a transmission unit which drives the sliding sheet to move towards the direction close to the screw hole so that the shielding part can shield the screw hole; the propelling mechanism comprises a locking disc which is in linkage with the rotating screw, a locking block is further arranged on the sliding plate, a notch capable of accommodating the locking block is formed in the locking disc, the locking block can integrally move along with the sliding plate, and when the shielding part shields the screw hole, the locking block enters the notch.
By adopting the technical scheme, the pushing interlocking mechanism of the low-voltage switch cabinet disclosed by the invention has the advantages that the sliding piece is enabled to move through the transmission unit until the blocking part blocks the screw hole, and the locking block enters the notch on the locking disc, so that on one hand, the blocking of the screw hole is finished, the rotating screw cannot be rotated any more, and on the other hand, the locking block locks the locking disc to enable the locking disc to be unable to rotate, so that the rotating screw is also locked, the dual functions of blocking the screw hole for driving the rotating screw to rotate and locking the position of the rotating screw are realized, meanwhile, the integral structure is simplified, and the assembly and the operation are convenient.
The interlocking mechanism further comprises a mounting bracket, the mounting bracket is at least partially a plate-shaped part, the locking disc and the sliding plate are respectively positioned on two sides of the plate-shaped part, a through groove is formed in the plate-shaped part, the end part of the locking block is inserted into the through groove and then extends to the other side of the plate-shaped part, and the locking block can move along the through groove.
The locking disc and the sliding plate are respectively positioned at two sides of the plate-shaped part, so that the effect of the through groove arranged on the plate-shaped part is not only that the locking block passes through, but also that the sliding of the sliding plate is guided, and the sliding plate can run more stably.
The locking block is a bending part on the sliding plate, so that the sliding plate can be integrally manufactured and molded during production and manufacture.
The plate-shaped part is also provided with at least one guide groove parallel to the through groove, and the plate-shaped part is provided with a guide block corresponding to the guide groove.
The guide groove and the guide block have the function of further guiding the sliding of the sliding plate, and meanwhile, the sliding plate and the mounting bracket are matched more compactly and stably.
The guide block is a bolt, and a screw hole for being screwed with the bolt is formed in the plate-shaped portion so as to facilitate assembly.
The interlocking mechanism comprises a transmission shaft, the rotating screw rod can drive the transmission shaft to rotate through the gear transmission assembly, and the locking disc is fixedly arranged on the transmission shaft. Of course, the simplest, efficient and stable transmission structure is that the locking disc is directly arranged on the rotating screw rod, but the gear transmission assembly and the transmission shaft are arranged, on one hand, the locking disc can be arranged on the transmission shaft, and on the other hand, the indicating disc can be arranged on the gear transmission assembly and used for indicating the state of the low-voltage switch cabinet.
The driving screw is provided with a poking tooth, and the gear driving assembly comprises at least one gear meshed with the poking tooth.
The two notches are distributed at intervals in the circumferential direction of the locking disc, and the two notches are aligned with the locking blocks when the pushing mechanism adjusts the low-voltage switch cabinet to a connection state and a test state respectively.
The transmission unit comprises a connecting sheet and a connecting rod, wherein an operation hole is formed in the connecting sheet and used for allowing an operation rod to be inserted into the connecting sheet and driving the connecting sheet to rotate, one end of the connecting rod is hinged with the connecting sheet so that the connecting rod can move upwards or downwards along with the rotation of the connecting sheet, a transmission block is arranged on the connecting rod, a first guide hole is formed in a plate-shaped portion, a second guide hole is formed in a sliding sheet, at least part of extension paths of the first guide hole and the second guide hole are in crossed arrangement, and the transmission block is inserted into the first guide hole and the second guide hole and can drive the sliding sheet to move relative to the plate-shaped portion along with the movement of the transmission block in the first guide hole.
The transmission block is a rivet riveted on the connecting rod.
As described above, the push interlocking mechanism of the low-voltage switch cabinet provided by the invention has the advantages that the structure is simplified under the dual functions of shielding and locking, so that the whole device is more compact, and the production cost is reduced.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a schematic structural view of a propulsion mechanism according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a propulsion mechanism gearset according to an embodiment of the invention;
FIG. 4 is a schematic diagram of the structure of the interlocking mechanism lock of an embodiment of the present invention;
fig. 5 is a schematic view of a plate-like portion of a mounting bracket of an embodiment of the present invention.
Description of the embodiments
The invention is described in further detail below with reference to the drawings and the detailed description.
As shown in fig. 1-5, the embodiment provides a push-in interlocking mechanism of a low-voltage switch cabinet, which comprises a mounting bracket 1, a connecting sheet 2, a connecting rod 3 and a sliding sheet 4, wherein an operation hole 21 is formed in the connecting sheet 2 for a switch-on/switch-off operation rod to pass through, the operation hole 21 is preferably square, and the connecting sheet 2 can rotate along with the rotation of the switch-on/switch-off operation rod through a connecting sheet sleeve 22. One end of the connecting rod 3 is hinged with a short waist hole formed in the connecting piece 2, and the connecting rod 3 can be lifted upwards when the connecting piece 2 rotates upwards. The other end of the connecting rod 3 is riveted with a connecting rod rivet 6 which is movably connected with the slide plate 4. The bracket 1 comprises a plate-shaped part 1a, a first guide hole 12 is arranged on the plate-shaped part 1a to enable the connecting rod rivet 6 to pass through, a second guide hole 43 is arranged on the sliding sheet 4, the first guide hole 12 and the second guide hole 43 are arranged in a crossing mode, and the connecting rod rivet 6 slides on the two guide holes to realize sliding of the sliding sheet 4. In addition, in this embodiment, two guide grooves 44 and 45 are formed in the sliding plate 4, rivets or bolts are respectively arranged on the bracket 1 and pass through the guide grooves 44 and 45, and the guide grooves 44 and 45 are arranged in a staggered manner, so as to support the sliding plate 4 and enhance the moving stability of the sliding plate 4. The slide sheet 4 is provided with a blocking portion 41 and a lock block 42.
The propelling mechanism comprises a rotating screw rod 7, a fixing plate 9 with threads, a first transmission shaft 8, a first driven gear 81, a second driven gear 82, a second transmission shaft 9a, a third driven gear 91 and a locking disc 5, wherein the rotating screw rod 7 is meshed with the threads on the fixing plate 9, a poking tooth 71 is arranged on the rotating screw rod 7, the bracket 1 can be integrally designed or split, in the embodiment, the bracket 1 is provided with a partition plate part 13 opposite to the plate part 1a, and a containing cavity for containing the poking tooth is formed between the plate part 1a and the partition plate part 13. The first transmission shaft 8 and the second transmission shaft 9a are respectively and rotatably arranged in the accommodating cavity, the first driven gear 81 and the second driven gear 82 are fixed on the first transmission shaft 8, the third driven gear 91 and the locking disc 5 are fixed on the second transmission shaft 9a, and the fixing mode can be used for selectively arranging the first transmission shaft and the second transmission shaft to be square shafts or adopting pins for fixing. The driving teeth 71 are meshed with the first driven gear 81 to rotate the first transmission shaft 8, and meanwhile, the second driven gear 82 is driven, and the second driven gear 82 is meshed with the third driven gear 91 to rotate the locking disc 5, so that the locking disc 5 rotates along with the rotation of the rotating screw 7. Two notches 51 are provided on the locking disk 5 to be locked in cooperation with the locking blocks 42 of the slider 4.
Through adopting above-mentioned scheme, when rotating the rotation screw rod 7 makes low-voltage switchgear be in connection or test state, through gear drive this moment, locking dish 5 also follows the breach 51 that rotates on the locking dish 5 just to be in relative position with locking piece 42, rotates and divides the switching operation pole in the closing position, then connecting piece 2 drives connecting rod 3 upwards, and connecting rod rivet 6 drives slider 4 and makes slider 4 slide, and locking piece 42 on the slider 4 also slides the breach 51 on embedding 5 together and accomplishes the locking, just can't rotate at this moment rotation screw rod 7. In addition, the shielding portion 41 on the slide plate 4 can shield the operation hole 72 of the rotation screw 7 while the slide plate 4 slides, so that the pushing mechanism cannot be operated. Only when the rotary switch-on/off operation lever is in the switch-off position, the connecting rod 3 descends to push the slide plate 4 to slide in the opposite direction, the locking block 42 is separated from the locking notch 51, the pushing mechanism is unlocked, the shielding part 41 is also separated from the operation hole 72 of the rotary screw 7, and the rotary screw 7 can be operated at this time. Therefore, the invention can achieve double protection by matching with the propelling mechanism, and can well prevent misoperation of staff or non-staff.
Considering that the slide plate 4 is disposed outside the housing chamber (outside the plate-like portion 1a away from the partition plate portion) for better interlocking, the lock block 42 is a folded portion on the slide plate 4, and the lock block 42 passes through the through groove 11 on the bracket 1 and is locked in cooperation with the lock disk 5 in the housing chamber. The shielding part 41 on the sliding plate 4 safely shields the operation hole 72 of the rotating screw rod 7 at the outer side of the accommodating cavity, and the locking block 42 locks the locking disc 5 in the accommodating cavity of the bracket, so that the operation is convenient.
The two transmission shafts are arranged in the propulsion mechanism in the embodiment so as to conveniently realize the state display of the low-voltage switch cabinet, or only one transmission shaft is arranged, the driven gear and the locking disc are fixed on one transmission shaft, the driven gear is driven by the poking teeth, and then the locking disc is driven to realize the matched locking.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While obvious variations or modifications of the design are contemplated as falling within the scope of the present invention.
Claims (7)
1. The utility model provides a propulsion interlocking mechanism of low tension switchgear which characterized in that: the device comprises a propelling mechanism and a linkage mechanism, wherein the propelling mechanism comprises a rotating screw rod and a mounting plate with threads, a screw rod hole is formed in one end, close to the outer side, of the rotating screw rod, and the screw rod hole is used for inserting a rotating tool capable of driving the rotating screw rod to rotate; the interlocking mechanism comprises a sliding sheet provided with a shielding part and a transmission unit which drives the sliding sheet to move towards the direction close to the screw hole so that the shielding part can shield the screw hole; the pushing mechanism comprises a locking disc which is linked with the rotating screw, a locking block is further arranged on the sliding plate, a notch capable of accommodating the locking block is arranged on the locking disc, the locking block can integrally move along with the sliding plate, and when the shielding part shields the screw hole, the locking block enters the notch;
the propelling interlocking mechanism of the low-voltage switch cabinet comprises a mounting bracket, a connecting sheet, a connecting rod and a sliding sheet, wherein an operation hole is formed in the connecting sheet and used for a switching-on and switching-off operation rod to pass through, the operation hole is square, and the connecting sheet can rotate along with the switching-on and switching-off operation rod through the connecting sheet;
the connecting piece is composed of two parts, one part is positioned on one side of the connecting rod and connected with the connecting rod, the other part is positioned on one side of the locking disk, the two connecting pieces are connected together through a connecting piece sleeve, a hollow shaft with an operation hole is arranged on the connecting piece close to one side of the locking disk, the inner space of a through hole of the hollow shaft is the operation hole, the inner end of the hollow shaft is connected with the connecting piece sleeve, the outer protruding outer circumferential surface of the outer end of the hollow shaft is provided with an annular limiting collar, the annular limiting collar is arranged in the annular groove in a matched mode, and a certain position of the circumference of the limiting collar extends outwards by a certain length to play a role in limiting the hollow shaft; the interlocking mechanism comprises a transmission shaft, the rotating screw rod can drive the transmission shaft to rotate through a gear transmission assembly, and the locking disc is fixedly arranged on the transmission shaft; a shifting tooth is arranged on the rotating screw rod, and the gear transmission assembly comprises at least one gear meshed with the shifting tooth; the interlocking mechanism further comprises a mounting bracket, wherein at least part of the mounting bracket is a plate-shaped part; the transmission unit comprises a connecting sheet and a connecting rod, wherein an operation hole is formed in the connecting sheet and used for allowing an operation rod to be inserted into the connecting sheet and driving the connecting sheet to rotate, one end of the connecting rod is hinged with the connecting sheet so that the connecting rod can move upwards or downwards along with the rotation of the connecting sheet, a transmission block is arranged on the connecting rod, a first guide hole is formed in a plate-shaped portion, a second guide hole is formed in a sliding sheet, at least part of extension paths of the first guide hole and the second guide hole are in crossed arrangement, and the transmission block is inserted into the first guide hole and the second guide hole and can drive the sliding sheet to move relative to the plate-shaped portion along with the movement of the transmission block in the first guide hole.
2. The push interlock mechanism of a low voltage switchgear as claimed in claim 1, wherein: the locking disc and the sliding piece are respectively positioned at two sides of the plate-shaped part, a through groove is formed in the plate-shaped part, the end part of the locking block is inserted into the through groove and then extends to the other side of the plate-shaped part, and the locking block can move along the through groove.
3. The push interlock mechanism of a low voltage switchgear as claimed in claim 2, wherein: the locking block is a bending part on the sliding piece.
4. The push interlock mechanism of a low voltage switchgear as claimed in claim 2, wherein: the plate-shaped part is also provided with at least one guide groove parallel to the through groove, and the plate-shaped part is provided with a guide block corresponding to the guide groove.
5. The push interlock mechanism of a low voltage switchgear of claim 4 wherein: the guide block is a bolt, and a screw hole for screwing the bolt is formed in the plate-shaped portion.
6. A push interlock mechanism for a low voltage switchgear as claimed in any of claims 1-5, wherein: the two notches are distributed at intervals in the circumferential direction of the locking disc, and the two notches are aligned with the locking blocks when the pushing mechanism adjusts the low-voltage switch cabinet to a connection state and a test state respectively.
7. The push interlock mechanism of a low voltage switchgear as claimed in claim 1, wherein: the transmission block is a rivet riveted on the connecting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710618613.5A CN107221869B (en) | 2017-07-26 | 2017-07-26 | Propelling interlocking mechanism of low-voltage switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710618613.5A CN107221869B (en) | 2017-07-26 | 2017-07-26 | Propelling interlocking mechanism of low-voltage switch cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107221869A CN107221869A (en) | 2017-09-29 |
| CN107221869B true CN107221869B (en) | 2023-12-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710618613.5A Active CN107221869B (en) | 2017-07-26 | 2017-07-26 | Propelling interlocking mechanism of low-voltage switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107221869B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112467590B (en) * | 2019-09-06 | 2022-04-19 | 河南森源电气股份有限公司 | Direct current switch cabinet and mechanical interlocking device of circuit breaker handcart thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104953497A (en) * | 2015-07-14 | 2015-09-30 | 温州德源电气有限公司 | Drawer push-in interlocking mechanism for low-voltage distribution cabinet |
| CN207010057U (en) * | 2017-07-18 | 2018-02-13 | 温州市中意锁具电器有限公司 | A kind of propulsion of low-tension switch cabinet, combined floodgate interlocking gear |
| CN207150002U (en) * | 2017-07-18 | 2018-03-27 | 温州市中意锁具电器有限公司 | A kind of propulsion indication mechanism of low-tension switch cabinet |
| CN207353743U (en) * | 2017-07-26 | 2018-05-11 | 上海呈星电气有限公司 | A kind of propulsion interlocking gear of low-tension switch cabinet |
-
2017
- 2017-07-26 CN CN201710618613.5A patent/CN107221869B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104953497A (en) * | 2015-07-14 | 2015-09-30 | 温州德源电气有限公司 | Drawer push-in interlocking mechanism for low-voltage distribution cabinet |
| CN207010057U (en) * | 2017-07-18 | 2018-02-13 | 温州市中意锁具电器有限公司 | A kind of propulsion of low-tension switch cabinet, combined floodgate interlocking gear |
| CN207150002U (en) * | 2017-07-18 | 2018-03-27 | 温州市中意锁具电器有限公司 | A kind of propulsion indication mechanism of low-tension switch cabinet |
| CN207353743U (en) * | 2017-07-26 | 2018-05-11 | 上海呈星电气有限公司 | A kind of propulsion interlocking gear of low-tension switch cabinet |
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| Publication number | Publication date |
|---|---|
| CN107221869A (en) | 2017-09-29 |
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Effective date of registration: 20240122 Address after: 201400 floor 5, building 11, No. 6055, Jinhai highway, Fengxian District, Shanghai Patentee after: Shanghai Chengxing Electric Technology Co.,Ltd. Country or region after: China Address before: Room 202, Building 15, No. 206 Peikun Road, Minhang District, Shanghai, 2011 Patentee before: SHANGHAI CHENGXING ELECTRIC Co.,Ltd. Country or region before: China |
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