CN117292993A - Automatic switching-on and switching-off device based on current feedback - Google Patents
Automatic switching-on and switching-off device based on current feedback Download PDFInfo
- Publication number
- CN117292993A CN117292993A CN202311189312.7A CN202311189312A CN117292993A CN 117292993 A CN117292993 A CN 117292993A CN 202311189312 A CN202311189312 A CN 202311189312A CN 117292993 A CN117292993 A CN 117292993A
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- side wall
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- device based
- shell
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- 230000002457 bidirectional effect Effects 0.000 claims description 6
- 230000006978 adaptation Effects 0.000 claims 1
- 230000000903 blocking effect Effects 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 5
- 210000003437 trachea Anatomy 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000010572 single replacement reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/66—Power reset mechanisms
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/02—Housings; Casings; Bases; Mountings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/08—Terminals; Connections
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- Breakers (AREA)
Abstract
The utility model discloses an automatic tripping device based on current feedback, which belongs to the technical field of electric power facilities and comprises a shell, wherein a limit bar is fixedly arranged on the side wall of the shell, a limit groove is arranged on the other side wall of the shell, a positioning hole is formed in the inner wall of the limit groove, the limit groove is matched with the limit bar in size, a reset component and an anti-falling component are arranged on the outer surface of the shell, and a positioning component is arranged on the inner wall of the limit bar; according to the utility model, the reset assembly is arranged, the rotating disc can move towards the direction of the supporting plate under the action of the screw thread when the rotating disc rotates, the torsion spring is in a contracted state at the moment, when the limiting plate is separated from the blocking of the push plate, the rotating disc can be restored to the original position under the action of the torsion spring, the instantaneous current is automatically recorded, the follow-up maintenance of tripping and closing is convenient, and the automatic reset is carried out after the current is restored to be normal, so that the manual closing operation is saved, and the power transmission efficiency is improved.
Description
Technical Field
The utility model belongs to the technical field of electric power facilities, and particularly relates to an automatic tripping device based on current feedback.
Background
The automatic tripping gate is also called automatic reclosing, and is a facility for automatically reclosing a circuit breaker by using a mechanical device or a relay automatic device after the circuit breaker is tripped due to a certain fault, and the circuit breaker is tripped once reclosed and multiple recloses according to the number of reclosings, is tripped into three-phase and single-phase automatic recloses according to the number of phases, and is tripped into single-side power supply and double-side power supply automatic recloses according to the use occasion.
The Chinese patent discloses an automatic reclosing device (CN 209562134U) with long service life, which comprises a first electric leakage module, wherein a plurality of fixed blocks are arranged at two ends of the upper part of the first electric leakage module, limiting plates are arranged at two sides of a switch operating handle, a first connecting block is arranged at one side of the reclosing module, and a buckle is arranged at one side of the upper part of the reclosing module. According to the utility model, the reclosing self-locking handle is movably connected with the reclosing module, so that the reclosing module has a self-locking function, misoperation of a non-professional user is prevented, guarantee is provided for safety of the user, the first electric leakage module is movably connected with the reclosing module through the buckle, installation of the electric leakage module and the reclosing module is facilitated, the screw is movably connected with the fixed block, installation and disassembly in maintenance are facilitated, the production cost is low, the structure is novel, the modularized design is adopted, installation and maintenance are convenient, only plug-in splicing is needed, enough electric gap and creepage distance are available, great help is provided on EMC experiments, current automatic tripping is not available in use, instant current cannot be known when short circuit occurs, and the current automatic tripping is automatically operated, but automatic judgment is not performed according to the current, so that switching failure is easy to occur.
Disclosure of Invention
In order to solve the problems, the utility model provides the automatic tripping device based on the current feedback, which can automatically record the instantaneous current, is convenient for overhauling the tripping and closing in the later period, and automatically resets after the current is recovered to be normal, thereby saving the operation of manual closing and improving the efficiency of power transmission.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the automatic tripping device based on current feedback comprises a shell, wherein a limit bar is fixedly arranged on the side wall of the shell, a limit groove is formed in the other side wall of the shell, a positioning hole is formed in the inner wall of the limit groove, the limit groove is matched with the limit bar in size, a reset component and an anti-falling component are arranged on the outer surface of the shell, and a positioning component is arranged on the inner wall of the limit bar;
the reset assembly comprises a mounting block and a rotating disc, wherein the side wall of the mounting block is fixedly connected with the outer surface of the shell, a driving motor is fixedly arranged on the other side wall of the mounting block, a rotating cylinder is fixedly arranged at the output end of the driving motor, and a pushing plate is fixedly arranged on the outer surface of the rotating cylinder.
The side wall of the rotating disc is fixedly provided with a limiting plate, the inner wall of the rotating disc is provided with a threaded column in a threaded manner, one end of the threaded column extends to the inside of the rotating cylinder, and one end of the rotating cylinder is rotationally connected with the side wall of the rotating disc.
The outer surface of the rotating disc is fixedly provided with a reset rod, the other side wall of the rotating disc is fixedly provided with a torsion spring, and the other end of the threaded column penetrates through the interior of the torsion spring.
The outer surface fixed mounting of casing has the backup pad, backup pad lateral wall and the other end fixed connection of screw thread post, torsion spring's one end and the lateral wall fixed connection of backup pad, is provided with the travel groove on the lateral wall of backup pad.
And a fixed rod is slidably arranged on the inner wall of the travel groove, a switch is fixedly arranged at one end of the fixed rod, and one end of the switch is rotationally connected with the inner wall of the shell.
The anti-drop assembly comprises a locating plate and a clamping plate, wherein the side wall of the locating plate is fixedly connected with the outer surface of the shell, a limiting rod is fixedly installed on the inner wall of the locating plate, a pressing plate is slidably installed on the outer surface of the limiting rod, and a bidirectional threaded rod is installed on the inner wall of the pressing plate in a threaded mode.
The surface rotation of two-way threaded rod installs the mounting panel, and the upper surface of mounting panel and the top surface inner wall fixed connection of locating plate, fixed mounting has flexible gasbag on the lateral wall of clamp plate, and the trachea is installed in the upper surface intercommunication of flexible gasbag.
The tracheal one end extends to the lateral wall of clamp plate outside, and the connecting pipe is installed in tracheal surface intercommunication, and the one end intercommunication installation and the inflation gasbag of connecting pipe, the inflation gasbag extends to the lateral wall of locating plate outside, and the equal fixed mounting in both ends of two-way threaded rod has the threaded rod, and the external surface screw thread of threaded rod installs the screw thread board, the upper surface of screw thread board and the top surface inner wall fixed connection of splint, and the one end of threaded rod extends to the lateral wall of splint outside.
The locating component comprises a moving rod, one end of the moving rod is fixedly provided with a fixed plate, the side wall of the fixed plate is fixedly provided with a telescopic spring, one end of the telescopic spring is fixedly connected with the inner side wall of the limiting strip, and the other end of the moving rod extends out of the side wall of the limiting strip.
The upper surface fixed mounting of movable rod has the lug, and fixed mounting has positioning spring on the bottom surface inner wall of spacing, and positioning spring's one end fixed mounting has the connecting plate, and fixed mounting has the locating pin on the lateral wall of connecting plate, and the lower surface and the upper surface sliding connection of lug of locating pin.
The beneficial effects of the utility model are as follows:
1. according to the utility model, through the reset assembly, when the circuit is short-circuited, the switch can automatically trip, the current monitor in the shell can record instantaneous current, after the current is recovered to a proper range, the controller can control the driving motor to drive the rotating cylinder to rotate, the rotating cylinder can drive the push plate to synchronously rotate during rotation, at the moment, the push plate can drive the rotating plate to rotate on the outer surface of the threaded column through the limiting plate under the limiting of the limiting plate, the reset rod can be driven to move during rotation of the rotating plate, at the moment, the reset rod can drive the fixed rod to move in the stroke groove, the switch is opened during movement of the fixed rod, the threaded column can enable the rotating plate to move towards the direction of the supporting plate under the action of threads during rotation of the rotating plate, at the moment, the torsion spring is in a contracted state, when the limiting plate is separated from the blocking of the push plate, the rotating plate can be recovered to the original position under the action of the torsion spring, the instantaneous current is automatically recorded, the maintenance is facilitated, the tripping and the automatic reset is performed after the current is recovered normally, so that the efficiency of manual switching on is improved.
2. According to the utility model, when a circuit is installed in the shell, the circuit passes through the space between the positioning plate and the clamping plate, then the threaded rod is rotated according to the thickness of the circuit, the threaded rod can move the threaded plate under the action of the threads on the outer surface, so that the position of the clamping plate is adjusted, the bidirectional threaded rod can be driven to rotate on the inner wall of the installation plate when the threaded rod rotates, the pressing plate can move under the limit of the limiting rod through the threads on the outer surface, the telescopic airbag is extruded, gas in the extruded telescopic airbag can flow into the expansion airbag from the connecting pipe through the air pipe, the expansion airbag is expanded at the moment and then wraps the circuit, the circuit is protected, the situation that the circuit is dropped due to the jump of the electric brake when the short circuit occurs in the shell is avoided, the power transmission efficiency is reduced, the circuit is prevented from dropping, the abrasion of the circuit is reduced, and the service life of the circuit is prolonged.
3. According to the utility model, the locating component is arranged, the locating strip on one shell is aligned with the locating groove on the other shell, then the locating strip is inserted into the locating groove, after the locating pin is aligned with the locating hole in the locating groove, one end of the locating pin is clamped into the locating hole in the locating groove through the connecting plate under the action of the locating spring, so that the two shells are fixed, when the two shells are required to be separated, the moving rod is extruded into the locating strip, at the moment, the lowest end of the protruding block can move to the lower part of the locating pin, and because the locating pin loses extrusion of the protruding block, the locating spring drives the locating pin to shrink into the locating strip through the connecting plate, so that the locating pin is separated from the locating hole, and then the locating strip is separated from the locating groove, so that the two shells are separated, dismounting and mounting and dismounting are facilitated, single replacement can be carried out when the two shells are damaged in the later stage, so that the overhaul difficulty is reduced, and the use cost is saved.
Drawings
Fig. 1 is a schematic perspective view of an automatic switching-off device based on current feedback.
Fig. 2 is an enlarged schematic view of the structure at a in fig. 1 of the specification.
Fig. 3 is a schematic perspective view of another angle of the automatic brake release device based on current feedback.
Fig. 4 is an exploded view of a positioning assembly of the automatic trip device based on current feedback.
Fig. 5 is an exploded view of the reset component of the automatic trip device based on current feedback.
Fig. 6 is a schematic diagram of an internal structure of an anti-drop component in the automatic trip device based on current feedback.
Fig. 7 is an enlarged schematic view of the structure at B in fig. 6 of the specification.
Legend description:
1. a housing; 2. a limit bar; 3. a positioning assembly; 31. a moving rod; 32. a fixing plate; 33. a telescopic spring; 34. a bump; 35. a positioning pin; 36. a connecting plate; 37. a positioning spring; 4. a switch; 5. a fixed rod; 6. a support plate; 7. a travel groove; 8. a limit groove; 9. an anti-drop assembly; 91. a positioning plate; 92. a limit rod; 93. a pressing plate; 94. a telescopic air bag; 95. an air pipe; 96. a clamping plate; 97. inflating the balloon; 98. a mounting plate; 99. a two-way threaded rod; 910. a threaded rod; 911. a thread plate; 10. a reset assembly; 101. a mounting block; 102. a driving motor; 103. a rotating cylinder; 104. a push plate; 105. a rotating disc; 106. a limiting plate; 107. a reset lever; 108. a torsion spring; 109. and (5) a threaded column.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.
Referring to fig. 1-7, the automatic tripping device based on current feedback comprises a shell 1, wherein a limit bar 2 is fixedly arranged on the side wall of the shell 1, a limit groove 8 is arranged on the other side wall of the shell 1, a positioning hole is formed in the inner wall of the limit groove 8, the limit groove 8 is matched with the limit bar 2 in size, a reset component 10 and an anti-falling component 9 are arranged on the outer surface of the shell 1, and a positioning component 3 is arranged on the inner wall of the limit bar 2;
the reset assembly 10 comprises a mounting block 101 and a rotating disc 105, wherein the side wall of the mounting block 101 is fixedly connected with the outer surface of a shell 1, a driving motor 102 is fixedly arranged on the other side wall of the mounting block 101, a rotating cylinder 103 is fixedly arranged at the output end of the driving motor 102, a push plate 104 is fixedly arranged on the outer surface of the rotating cylinder 103, a limit plate 106 is fixedly arranged on the side wall of the rotating disc 105, a threaded column 109 is arranged on the inner wall of the rotating disc 105 in a threaded manner, one end of the threaded column 109 extends to the inside of the rotating cylinder 103, one end of the rotating cylinder 103 is rotationally connected with the side wall of the rotating disc 105, a reset rod 107 is fixedly arranged on the outer surface of the rotating disc 105, a torsion spring 108 is fixedly arranged on the other side wall of the rotating disc 105, the other end of the threaded column 109 penetrates through the inside of the torsion spring 108, a supporting plate 6 is fixedly arranged on the outer surface of the shell 1, a travel groove 7 is arranged on the side wall of the supporting plate 6, a fixing rod 5 is slidingly arranged on the inner wall of the travel groove 7, a switch 4 is fixedly arranged at one end of the fixing rod 5, and one end of the switch 4 is rotationally connected with the inner wall of the shell 1.
The specific examples are: when the circuit has the condition of short circuit and the like, the switch 4 can automatically trip, the current monitor in the shell 1 can record instantaneous current, after the current is restored to a proper range, the controller can control the driving motor 102 to drive the rotating cylinder 103 to rotate, the rotating cylinder 103 can drive the push plate 104 to synchronously rotate when rotating, at this moment, the rotating disc 105 is limited by the limiting plate 106, the push plate 104 can drive the rotating disc 105 to rotate on the outer surface of the threaded column 109 through the limiting plate 106, the reset rod 107 can be driven to move when the rotating disc 105 rotates, at this moment, the reset rod 107 can drive the fixed rod 5 to move in the travel groove 7, the switch 4 is opened when the fixed rod 5 moves, and the rotating disc 105 can be driven to move towards the supporting plate 6 under the action of threads when the rotating disc 105, at this moment, the torsion spring 108 is in a contracted state, and when the limiting plate 106 is separated from the blocking of the push plate 104, the rotating disc 105 can be restored to the original position under the action of the torsion spring 108 to prepare for the next reset.
The anti-drop subassembly 9 includes locating plate 91 and splint 96, the lateral wall of locating plate 91 and the surface fixed connection of casing 1, fixed mounting has gag lever post 92 on the inner wall of locating plate 91, the surface slidable mounting of gag lever post 92 has clamp plate 93, threaded mounting has two-way threaded rod 99 on the inner wall of clamp plate 93, the mounting panel 98 is installed in the surface rotation of two-way threaded rod 99, the upper surface of mounting panel 98 and the top surface inner wall fixed connection of locating plate 91, fixed mounting has flexible gasbag 94 on the lateral wall of clamp plate 93, the trachea 95 is installed in the upper surface intercommunication of flexible gasbag 94, the one end of trachea 95 extends to the lateral wall of clamp plate 93 outward, the connecting pipe is installed in the surface intercommunication of trachea 95, the one end intercommunication of connecting pipe is installed and is inflated gasbag 97, inflated gasbag 97 extends to the lateral wall outward of locating plate 91, the equal fixed mounting in both ends of two-way threaded rod 99 has threaded rod 910, threaded rod 910's external surface screw thread installs screw plate 911, the upper surface and the top surface inner wall fixed connection of splint 96 of threaded rod 910, the one end of threaded rod 910 extends to the lateral wall outward of splint 96.
The specific examples are: when the casing 1 installs the circuit, pass the circuit between locating plate 91 and splint 96, then according to the thickness of circuit, through rotating threaded rod 910, threaded rod 910 can make screw plate 911 take place to remove under the effect of surface screw thread this moment, thereby adjust splint 96's position, can drive two-way threaded rod 99 and rotate on the inner wall of mounting panel 98 when threaded rod 910 rotates, two-way threaded rod 99 makes clamp plate 93 remove under the spacing of gag lever post 92 through the screw thread of surface this moment, thereby extrude telescopic airbag 94, the gas in the telescopic airbag 94 that receives the extrusion can flow to in the inflation gasbag 97 from the connecting tube through trachea 95, the inflation gasbag 97 takes place the parcel after the inflation this moment, thereby protect the circuit.
The locating component 3 comprises a moving rod 31, one end of the moving rod 31 is fixedly provided with a fixed plate 32, the side wall of the fixed plate 32 is fixedly provided with a telescopic spring 33, one end of the telescopic spring 33 is fixedly connected with the inner side wall of the limit bar 2, the other end of the moving rod 31 extends out of the side wall of the limit bar 2, the upper surface of the moving rod 31 is fixedly provided with a convex block 34, the inner wall of the bottom surface of the limit bar 2 is fixedly provided with a locating spring 37, one end of the locating spring 37 is fixedly provided with a connecting plate 36, the side wall of the connecting plate 36 is fixedly provided with a locating pin 35, and the lower surface of the locating pin 35 is in sliding connection with the upper surface of the convex block 34.
The specific examples are: the limiting strip 2 on one shell 1 is aligned with the limiting groove 8 on the other shell 1, then the limiting strip 2 is inserted into the limiting groove 8, after the positioning pin 35 is aligned with the positioning hole in the limiting groove 8, one end of the positioning pin 35 is clamped into the positioning hole in the limiting groove 8 through the connecting plate 36 under the action of the positioning spring 37, so that the two shells 1 are fixed, when the two shells 1 are required to be separated, the moving rod 31 is extruded into the limiting strip 2, at the moment, the lowest end of the protruding block 34 can move to the lower side of the positioning pin 35, and the positioning pin 35 is retracted into the limiting strip 2 through the connecting plate 36 due to the fact that the protruding block 34 is not extruded by the positioning pin 35, so that the positioning pin 35 is separated from the positioning hole, and then the limiting strip 2 is separated from the limiting groove 8, so that the two shells 1 are separated.
Working principle: the limit bar 2 on one shell 1 is aligned with the limit groove 8 on the other shell 1, then the limit bar 2 is inserted into the limit groove 8, after the locating pin 35 is aligned with the locating hole in the limit groove 8, one end of the locating pin 35 is clamped into the locating hole in the limit groove 8 by the connecting plate 36 under the action of the locating spring 37, so that the two shells 1 are fixed, when the two shells 1 are required to be separated, the moving rod 31 is extruded into the limit bar 2, at the moment, the lowest end of the lug 34 can move to the lower part of the locating pin 35, because the locating pin 35 loses extrusion of the lug 34, the locating spring 37 drives the locating pin 35 to shrink into the limit bar 2 by the connecting plate 36, so that the locating pin 35 is separated from the locating hole, then the limit bar 2 is separated from the limit groove 8, so that the two shells 1 are separated, when the shells 1 are provided with lines, the line passes through the space between the positioning plate 91 and the clamping plate 96, then according to the thickness of the line, the threaded rod 910 is rotated, at this moment, the threaded rod 910 can move the threaded plate 911 under the action of the threads on the outer surface, so as to adjust the position of the clamping plate 96, the bidirectional threaded rod 99 can be driven to rotate on the inner wall of the mounting plate 98 when the threaded rod 910 rotates, at this moment, the bidirectional threaded rod 99 can move the pressing plate 93 under the limit of the limiting rod 92 through the threads on the outer surface, so as to squeeze the telescopic airbag 94, the gas in the squeezed telescopic airbag 94 can flow into the expansion airbag 97 from the connecting pipe through the gas pipe 95, at this moment, the expansion airbag 97 is inflated, the line is wrapped, so that the line is protected, when the line is in a short circuit or the like, the switch 4 can trip automatically, and the current monitor in the shell 1 can record instantaneous current, when the current is restored to a proper range, the controller controls the driving motor 102 to drive the rotating cylinder 103 to rotate, the rotating cylinder 103 drives the push plate 104 to synchronously rotate when rotating, at this time, the rotating disc 105 is limited by the limiting plate 106, the push plate 104 drives the rotating disc 105 to rotate on the outer surface of the threaded column 109 through the limiting plate 106, the reset rod 107 is driven to move when the rotating disc 105 rotates, at this time, the reset rod 107 drives the fixed rod 5 to move in the travel groove 7, the switch 4 is opened when the fixed rod 5 moves, the rotating disc 105 moves towards the direction of the supporting plate 6 under the action of threads when rotating, the torsion spring 108 is in a contracted state, and when the limiting plate 106 is separated from the blocking of the push plate 104, the rotating disc 105 is restored to the original position under the action of the torsion spring 108 to prepare for the next reset.
Claims (10)
1. Automatic switching-on device based on current feedback, including casing (1), fixed mounting has spacing (2) on the lateral wall of casing (1), is provided with spacing groove (8) on the another lateral wall of casing (1), is provided with the locating hole on the inner wall of spacing groove (8), spacing groove (8) and spacing (2) size adaptation, its characterized in that: the outer surface of the shell (1) is provided with a reset component (10) and an anti-falling component (9), and the inner wall of the limit strip (2) is provided with a positioning component (3);
the reset assembly (10) comprises a mounting block (101) and a rotating disc (105), wherein the side wall of the mounting block (101) is fixedly connected with the outer surface of the shell (1), a driving motor (102) is fixedly arranged on the other side wall of the mounting block (101), a rotating cylinder (103) is fixedly arranged at the output end of the driving motor (102), and a push plate (104) is fixedly arranged on the outer surface of the rotating cylinder (103).
2. The automatic switching-off device based on current feedback according to claim 1, wherein a limiting plate (106) is fixedly installed on the side wall of the rotating disc (105), a threaded column (109) is installed on the inner wall of the rotating disc (105) in a threaded manner, one end of the threaded column (109) extends to the inside of the rotating cylinder (103), and one end of the rotating cylinder (103) is rotatably connected with the side wall of the rotating disc (105).
3. The automatic brake release device based on current feedback according to claim 2, wherein a reset lever (107) is fixedly installed on the outer surface of the rotating disc (105), a torsion spring (108) is fixedly installed on the other side wall of the rotating disc (105), and the other end of the threaded column (109) penetrates through the interior of the torsion spring (108).
4. The automatic brake-tripping device based on current feedback according to claim 3, wherein the outer surface of the shell (1) is fixedly provided with a supporting plate (6), the side wall of the supporting plate (6) is fixedly connected with the other end of the threaded column (109), one end of the torsion spring (108) is fixedly connected with the side wall of the supporting plate (6), and a travel groove (7) is arranged on the side wall of the supporting plate (6).
5. The automatic switching-off device based on current feedback according to claim 4, wherein a fixed rod (5) is slidably mounted on the inner wall of the travel groove (7), a switch (4) is fixedly mounted at one end of the fixed rod (5), and one end of the switch (4) is rotatably connected with the inner wall of the shell (1).
6. The automatic brake-tripping device based on current feedback according to claim 5, wherein the anti-falling assembly (9) comprises a positioning plate (91) and a clamping plate (96), the side wall of the positioning plate (91) is fixedly connected with the outer surface of the shell (1), a limiting rod (92) is fixedly installed on the inner wall of the positioning plate (91), a pressing plate (93) is slidably installed on the outer surface of the limiting rod (92), and a bidirectional threaded rod (99) is installed on the inner wall of the pressing plate (93) in a threaded mode.
7. The automatic brake release device based on current feedback according to claim 6, wherein a mounting plate (98) is rotatably mounted on the outer surface of the bidirectional threaded rod (99), the upper surface of the mounting plate (98) is fixedly connected with the inner wall of the top surface of the positioning plate (91), a telescopic airbag (94) is fixedly mounted on the side wall of the pressing plate (93), and an air pipe (95) is mounted on the upper surface of the telescopic airbag (94) in a communicating manner.
8. The automatic brake-tripping device based on current feedback according to claim 7, wherein one end of the air pipe (95) extends out of the side wall of the pressing plate (93), a connecting pipe is installed on the outer surface of the air pipe (95) in a communicating manner, one end of the connecting pipe is installed with the expansion air bag (97) in a communicating manner, the expansion air bag (97) extends out of the side wall of the positioning plate (91), threaded rods (910) are fixedly installed at two ends of the two-way threaded rod (99), a threaded plate (911) is installed on the outer surface of the threaded rod (910) in a threaded manner, the upper surface of the threaded plate (911) is fixedly connected with the inner wall of the top surface of the clamping plate (96), and one end of the threaded rod (910) extends out of the side wall of the clamping plate (96).
9. The automatic brake-tripping device based on current feedback according to claim 8, wherein the positioning assembly (3) comprises a moving rod (31), one end of the moving rod (31) is fixedly provided with a fixed plate (32), a telescopic spring (33) is fixedly arranged on the side wall of the fixed plate (32), one end of the telescopic spring (33) is fixedly connected with the inner side wall of the limit bar (2), and the other end of the moving rod (31) extends out of the side wall of the limit bar (2).
10. The automatic brake release device based on current feedback according to claim 9, wherein the upper surface of the moving rod (31) is fixedly provided with a bump (34), the inner wall of the bottom surface of the limit bar (2) is fixedly provided with a positioning spring (37), one end of the positioning spring (37) is fixedly provided with a connecting plate (36), the side wall of the connecting plate (36) is fixedly provided with a positioning pin (35), and the lower surface of the positioning pin (35) is in sliding connection with the upper surface of the bump (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311189312.7A CN117292993A (en) | 2023-09-15 | 2023-09-15 | Automatic switching-on and switching-off device based on current feedback |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311189312.7A CN117292993A (en) | 2023-09-15 | 2023-09-15 | Automatic switching-on and switching-off device based on current feedback |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117292993A true CN117292993A (en) | 2023-12-26 |
Family
ID=89250998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311189312.7A Withdrawn CN117292993A (en) | 2023-09-15 | 2023-09-15 | Automatic switching-on and switching-off device based on current feedback |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117292993A (en) |
-
2023
- 2023-09-15 CN CN202311189312.7A patent/CN117292993A/en not_active Withdrawn
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Application publication date: 20231226 |