CN107465139B - Handcart propulsion mechanism of switch cabinet - Google Patents
Handcart propulsion mechanism of switch cabinet Download PDFInfo
- Publication number
- CN107465139B CN107465139B CN201710700648.3A CN201710700648A CN107465139B CN 107465139 B CN107465139 B CN 107465139B CN 201710700648 A CN201710700648 A CN 201710700648A CN 107465139 B CN107465139 B CN 107465139B
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- screw rod
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- 230000007246 mechanism Effects 0.000 title claims abstract description 38
- 238000005452 bending Methods 0.000 claims abstract description 18
- 230000009471 action Effects 0.000 claims description 9
- 238000012360 testing method Methods 0.000 description 11
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003068 static effect 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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Motorcycle And Bicycle Frame (AREA)
Abstract
The invention discloses a handcart propulsion mechanism of a switch cabinet, which comprises: the device comprises a screw rod, a nut seat, a cross beam bracket, an inner bending plate, a left bolt, a left sliding plate, a right bolt, a right sliding plate, a ground knife interlocking plate, a front support plate, a rear support plate, a front locking plate, a rear locking plate, a middle locking plate, a limiting block, an interlocking rotating shaft, an interlocking top sleeve, a position square cap, a locking piece, a rear rotating plate and an auxiliary switch; the inner bending plate is arranged in the beam bracket, and the screw rod penetrates through the beam bracket, the inner bending plate and the nut seat; the right end of the ground knife interlocking plate is placed in a sliding groove of the cross beam bracket, and the left end of the ground knife interlocking plate is arranged at the outer side of the inner bending plate; the nut seat is fixed with the front support plate and the rear support plate through bolts; the interlocking rotating shaft penetrates through the front support plate and the rear support plate, and the front lock plate, the rear lock plate and the middle lock plate are fixed on the interlocking rotating shaft; the locking piece is arranged on the head of the screw rod; the rear rotating plate is arranged on the rear support plate through the shaft sleeve, and the state of the auxiliary switch can be switched by rotating the rear rotating plate.
Description
Technical Field
The invention relates to the technical field of propelling mechanisms, in particular to a handcart propelling mechanism of a switch cabinet.
Background
In the existing KYN61-40.5 high-voltage switch cabinet, for convenient maintenance and improving the reliability of power supply, a breaker and various electrical appliance units are often manufactured into a switch cabinet handcart, so that the switch cabinet handcart is a movable part. The common switch cabinet handcart comprises a breaker handcart, an isolation handcart, a voltage transformer handcart and the like, wherein the switch cabinet handcart is required to adopt a necessary propulsion mechanism to realize the propulsion and the pulling-out of the handcart in the switch cabinet, and has a necessary error-preventing interlocking function.
At present, a handcart propulsion mechanism of a switch cabinet basically adopts a screw rod and a nut to transmit power to enable a handcart to be propelled or pulled out, and the existing handcart propulsion mechanism is electrically operated or manually operated and is provided with an interlocking shaft operation piece and an interlocking square rod to realize various anti-misoperation interlocks of the handcart. The electric propulsion mechanism of the 40.5KV circuit breaker handcart disclosed in patent publication No. 201521101769.9 and patent publication No. 201220416980.X is characterized in that when manual operation is adopted, an interlocking shaft operation piece is required to be pressed down to enable an interlocking square rod to rotate to a horizontal position, and when the interlocking square rod rotates to be parallel to the position of a square hole above a mounting frame, a handle is used for rotating a screw rod to realize propulsion and pulling of the handcart; when the electric operation is adopted, the motor rotates, and the interlocking shaft operation piece is pulled first, so that the interlocking square rod can be pushed in and pulled out after being kept horizontal. When the handcart propulsion mechanism reaches a designated position, the screw rod needs to be fixed so as to prevent faults and accidents caused by screw rod rotation due to vibration of switching on and off, transportation and the like of the circuit breaker. In order to prevent the screw from rotating, the existing handcart propelling mechanism is prevented from being realized in a spring clamping mode, the mode is quite unreliable, when the screw is subjected to vibration force exceeding the friction force of spring clamping, the screw can be rotated by mistake, the handcart is caused to be in fault, and the moving and static contacts in the switch cabinet are separated to cause an electricity utilization accident. In order to solve the problem, a propulsion mechanism with an interlocking function is disclosed in patent publication No. 201521101769.9, a ratchet wheel and a pawl matched with the ratchet wheel are arranged at the tail end of a screw rod, when the screw rod rotates to a working position, an interlocking square rod is rotated by lifting an interlocking shaft operation piece, and then the screw rod can be limited to rotate by a certain interlocking matching of the pawl and the ratchet wheel.
The existing switch cabinet handcart propulsion mechanism not only realizes the pushing and pulling functions of the handcart, but also has to be provided with necessary anti-misoperation interlocking functions, and comprises: when the breaker handcart is switched on, the propulsion mechanism cannot be pushed in and pulled out; in the advancing process of the propelling mechanism, the breaker handcart cannot be switched on; when the grounding switch in the switch cabinet is closed, the propelling mechanism cannot propel the cabinet to the cabinet; after leaving the test position, the pushing mechanism cannot be pulled out of the switchgear and the earthing switch in the switchgear cannot be operated. The existing handcart propelling mechanism realizes the error-preventing interlocking function through the interlocking shaft operation piece and the interlocking square rod, and the mode is complex and unreliable, and particularly has technical defects and potential safety hazards, so that the design of the handcart propelling mechanism with comprehensive and reliable interlocking function has certain necessity.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the handcart pushing mechanism of the switch cabinet, which has the advantages of simple and reasonable structural design, complete and reliable interlocking function and convenient use.
The invention is realized by the following technical scheme:
1. a switchgear cart propulsion mechanism, comprising: the device comprises a screw rod, a nut seat, a cross beam bracket, an inner bending plate, a left bolt, a left sliding plate, a right bolt, a right sliding plate, a ground knife interlocking plate, a front support plate, a rear support plate, a front locking plate, a rear locking plate, a middle locking plate, a limiting block, an interlocking rotating shaft, an interlocking top sleeve, a position square cap, a locking piece, a rear rotating plate and an auxiliary switch; the inner bending plate is arranged in the beam bracket, and the screw rod penetrates through the beam bracket, the inner bending plate and the nut seat; the left bolt and the right bolt are provided with 2 groups, are respectively arranged on the left slide plate and the right slide plate, are arranged in the sliding grooves of the inner bending plate, and can extend or retract into the cross beam bracket by pulling the handles on the left slide plate and the right slide plate; the right end of the ground knife interlocking plate is placed in a chute at the right side of the cross beam bracket, the left end of the ground knife interlocking plate is arranged at the outer side of the inner bending plate through a shaft sleeve, and the head of the ground knife interlocking plate can extend out of or retract into the cross beam bracket by pulling a handle on the ground knife interlocking plate; the nut seat is fixed with the front support plate and the rear support plate through bolts, and two limiting blocks are respectively welded on the front support plate and the rear support plate; the front lock plate, the rear lock plate, the middle lock plate and the interlocking rotating shaft can rotate in a certain position, and springs are arranged on the interlocking rotating shaft and the middle lock plate to reset the interlocking rotating shaft; the two position square caps are respectively arranged at the front part and the rear part of the screw rod; the locking piece is arranged on the head of the screw rod and positioned on the outer side of the beam bracket; the rear rotary plate is arranged on the rear support plate through a shaft sleeve, the position of the rear rotary plate corresponds to the position of the limiting block, the auxiliary switch is fixed on the rear support plate, and the state of the auxiliary switch can be switched by rotating the rear rotary plate.
Preferably, the front lock plate of the switch cabinet handcart pushing mechanism comprises a locking plate, a front position plate welded on the locking plate and a screw arranged on the locking plate, wherein the position of the front position plate corresponds to that of the front limit block.
Preferably, the interlocking top sleeve comprises a top sleeve, a limit screw and a top sleeve reset spring, the limit screw and the top sleeve reset spring are arranged in the top sleeve, the limit screw is fixed on a beam bracket through a nut, the top sleeve is provided with steps and grooves, the positions of the limit screw and the grooves of the left slide plate, the right slide plate and the ground knife interlocking plate are consistent, the top sleeve locks the left slide plate, the right slide plate and the ground knife interlocking plate under the action of the top sleeve reset spring, and the top sleeve is pressed to enable the steps of the top sleeve to pass through the left slide plate, the right slide plate and the ground knife interlocking plate to unlock the left slide plate, the right slide plate and the ground knife interlocking plate.
Preferably, the notch part of the switch cabinet handcart propelling mechanism comprises a notch plate, a limiting part and notch compression springs, wherein the limiting part is fixed at the head of a screw rod, the two notch compression springs are respectively arranged at two ends of the notch plate, the notch plate and the notch compression springs are arranged on a beam bracket, and the head of the screw rod can be leaked by pressing the notch plate.
Drawings
The invention is described in detail below with reference to the attached drawing figures and the detailed description:
FIG. 1 is a schematic view of the structure of the present invention in a test position;
FIG. 2 is a schematic view of the present invention in an operative position;
FIG. 3 is a rear view of FIG. 1;
FIGS. 4 and 5 are schematic views showing the assembly of parts of the present invention, wherein the lock plate (9) is in an extended state;
FIGS. 6 and 7 are cross-sectional views of the present invention;
FIGS. 8 and 9 are partial views of the present invention;
in the figure, lead screw (1), nut seat (2), crossbeam support (3), interior bent plate (4), left bolt (5), left slide (6), right bolt (7), right slide (8), ground sword interlocking board (9), preceding mounting panel (10), back mounting panel (11), preceding locking plate (12), back locking plate (13), well locking plate (14), stopper (15), interlocking pivot (16), interlocking top cover (17), position square cap (18), fore shaft piece (19), back position revolving plate (20), auxiliary switch (21).
Detailed Description
The invention is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
Referring to fig. 1-9, the present embodiment adopts the following technical scheme:
the pushing mechanism of the handcart of the switch cabinet is characterized in that the inner bending plate (4) is arranged in the cross beam bracket (3), and the screw rod (1) penetrates through the cross beam bracket (3), the inner bending plate (4) and the nut seat (2); the left bolt (5) and the right bolt (7) are provided with 2 groups, and are respectively arranged on the left sliding plate (6) and the right sliding plate (8), the left sliding plate (6) and the right sliding plate (8) are arranged in the sliding groove of the inner bending plate (4), and the left bolt (5) and the right bolt (7) can extend out of or retract into the beam bracket (3) by pulling the handles on the left sliding plate (6) and the right sliding plate (8); the right end of the ground knife interlocking plate (9) is arranged in a chute at the right side of the cross beam bracket (3), the left end is arranged at the outer side of the inner bending plate (4) through a shaft sleeve, and the head of the ground knife interlocking plate (9) can extend or retract into the cross beam bracket (3) by pulling a handle on the ground knife interlocking plate (9); the nut seat (2) is fixed with the front support plate (10) and the rear support plate (11) through bolts, and two limiting blocks (15) are respectively welded on the front support plate (10) and the rear support plate (11); the interlocking rotating shaft (16) penetrates through the front support plate (10) and the rear support plate (11), the front lock plate (12), the rear lock plate (13) and the middle lock plate (14) are fixed on the interlocking rotating shaft (16) and are respectively positioned at the front part, the rear part and the middle part of the front support plate (10) and the rear support plate (11), the front lock plate (12), the rear lock plate (13), the middle lock plate (14) and the interlocking rotating shaft (16) can rotate in a certain position, and springs are arranged on the interlocking rotating shaft (16) and the middle lock plate (14) to enable the interlocking rotating shaft (16) to reset; the two position square caps (18) are respectively arranged at the front part and the rear part of the screw rod; the locking piece (19) is arranged at the head of the screw rod and positioned at the outer side of the beam bracket (3); the rear rotating plate (20) is arranged on the rear supporting plate (11) through a shaft sleeve, the position of the rear rotating plate corresponds to the limiting block (15-2), the auxiliary switch (21) is fixed on the rear supporting plate (11), and the state of the auxiliary switch (21) can be switched when the rear rotating plate (20) is rotated.
Preferably, the front lock plate (12) of the switch cabinet handcart pushing mechanism comprises a locking plate (12-1), a front position plate (12-2) welded on the locking plate (12-1), and a screw (12-3) arranged on the locking plate (12-1), wherein the position of the front position plate (12-2) corresponds to the position of the front limit block (15-1).
Preferably, the interlocking top cover (17) comprises a top cover (17-1), a limit screw (17-2) and a top cover reset spring (17-3), the limit screw (17-2) and the top cover reset spring (17-3) are arranged inside the top cover (17-1), the limit screw (17-2) is fixed on the beam bracket (3) through a nut, the top cover (17-1) is provided with a step and a groove, the positions of the step and the groove are consistent with the positions of the sliding grooves of the left sliding plate (6), the right sliding plate (8) and the ground knife interlocking plate (9), the top cover (17-1) locks the left sliding plate (6), the right sliding plate (8) and the ground knife interlocking plate (9) under the action of the top cover reset spring (17-3), and the top cover (17-1) is pressed to enable the step to pass over the left sliding plate (6), the right sliding plate (8) and the ground knife interlocking plate (9) to unlock the left sliding plate (6), the right sliding plate (8) and the ground knife interlocking plate (9).
Preferably, the notch locking piece (19) of the switch cabinet handcart pushing mechanism comprises a notch locking plate (19-1), a limiting piece (19-2) and a notch locking pressure spring (19-3), wherein the limiting piece (19-2) is fixed at the head of the screw rod (3), the two notch locking pressure springs (19-3) are respectively arranged at two ends of the notch locking plate (19-1), the notch locking plate (19-1) and the notch locking pressure spring (19-3) are arranged on the cross beam bracket (3), and the head of the screw rod (3) can be leaked by pressing the notch locking plate (19-1).
The specific embodiment realizes that the switch cabinet handcart is pushed or pulled out in the switch cabinet under the drive of the pushing mechanism and is provided with the following anti-misoperation interlocking:
1. in the advancing process of the propelling mechanism, the breaker handcart cannot be switched on;
2. when the breaker handcart is switched on, the propulsion mechanism cannot be pushed in and pulled out;
3. when the grounding switch in the switch cabinet is closed, the propelling mechanism cannot propel the cabinet to the cabinet;
4. after leaving the test position, the pushing mechanism cannot be pulled out of the switchgear and the earthing switch in the switchgear cannot be operated.
The following describes the specific embodiments of the present invention with reference to the drawings.
The nut seat (2) is arranged on a matched switch cabinet handcart, when the switch cabinet handcart is in a test position, the locking piece (19) is pressed, the limiting piece (19-2) arranged at the head of the lead screw (1) is separated from the locking plate (19-1), the lead screw (1) is unlocked, the special operating handle rotates the lead screw (1) to drive the nut seat (2) to drive the switch cabinet handcart to move in the direction away from the beam bracket (3), when the position cap (18-2) contacts the limiting piece (15-2), the lead screw (1) is limited, the switch cabinet handcart reaches a working position, the special operating handle is taken out at the moment, the locking plate (19-1) returns under the action of the locking pressure spring (19-3), and the limiting piece (19-2) is limited by the locking plate (19-1), so that the lead screw (1) can not rotate, the switch cabinet handcart is driven by a pushing mechanism to push or pull out in the switch cabinet, and faults caused by reverse rotation of the lead screw can be avoided during working;
when the handcart of the switch cabinet reaches a working position, the position square cap (18-2) pushes the rear rotary plate (20) to enable the rear rotary plate (20) to press the auxiliary switch (21) to switch on the switch state of the auxiliary switch (21), a circuit breaker switching-on loop in the auxiliary switch (21) is conducted, meanwhile, the rear rotary plate (20) is upwards and upwards jacked to enable the front locking plate (12), the rear locking plate (13), the middle locking plate (14) and the interlocking rotary shaft (16) to rotate, the middle locking plate (14) outputs a certain angle to be unlocked with a matched circuit breaker switching-on interlocking part, and the matched circuit breaker can be switched on.
When the handcart of the switch cabinet is in a working position, the nut seat (2) can move towards a direction close to the beam bracket (3) by the reverse rotation screw rod (1), after the position square cap (18-2) leaves the rear rotary plate (20), the state of the auxiliary switch (21) is recovered, a circuit breaker closing loop in the auxiliary switch (21) is disconnected, the front lock plate (12), the rear lock plate (13), the middle lock plate (14) and the interlocking rotary shaft (16) are reset under the action of a spring, the middle lock plate (14) outputs a certain angle towards the reverse direction, and is combined with a matched circuit breaker closing interlocking part, and the matched circuit breaker can not be closed. When the handcart of the switch cabinet reaches a test position, the position cap (18-1) contacts the limiting block (15-1), and meanwhile, the position cap (18-1) pushes the front position plate (12-2) to enable the front lock plate (12), the rear lock plate (13), the middle lock plate (14) and the interlocking rotating shaft (16) to rotate, the middle lock plate (14) outputs a certain angle, and the middle lock plate is unlocked with a matched breaker closing interlocking part, so that the matched breaker can be closed. Therefore, the function that the circuit breaker handcart cannot be switched on in the advancing process of the propelling mechanism is realized, the special operating handle is taken out after the switch cabinet handcart reaches the test position, the fore shaft plate (19-1) returns under the action of the fore shaft pressure spring (19-3), the limiting piece (19-2) is limited by the fore shaft plate (19-1), and the screw rod (1) cannot rotate.
When the switch cabinet handcart is in a test or working position, the switch-on interlocking part of the switch cabinet handcart moves upwards to limit the middle locking plate (14) to a certain position, the front locking plate (12), the rear locking plate (13), the middle locking plate (14) and the interlocking rotating shaft (16) are limited and cannot reset under the action of a spring, at the moment, the screw rod (1) is operated, when in the test position, the position square cap (18-1) is limited by the locking plate (12-1), when in the working position, the position square cap (18-2) is limited by the rear locking plate (13), and the screw rod (1) cannot continue to rotate, so that the pushing mechanism cannot push and pull out when the switch-on of the switch cabinet handcart is realized.
When the handcart of the switch cabinet is in a test position and the ground knife locking plate (9) is in an unextended state, the ground switch in the switch cabinet can be operated, when the ground switch in the switch cabinet is closed, the ground knife locking plate (9) is blocked by the ground knife locking member in the switch cabinet, so that the ground knife locking plate (9) cannot extend a certain distance, at the moment, the screw (12-3) is limited by the ground knife locking plate (9), the front locking plate (12), the rear locking plate (13), the middle locking plate (14) and the interlocking rotating shaft (16) are limited, the screw (1) cannot be reset under the action of a spring, the screw (1) cannot be operated, after the ground switch is opened, the ground knife locking member in the switch cabinet leaves the position of the ground knife locking plate (9), the ground knife locking plate (9) is pulled to be completely extended, the left end of the ground knife locking plate (9) leaves the position of the screw (12-3), the front locking plate (12), the rear locking plate (13), the middle locking plate (14) and the interlocking rotating shaft (16) are released, and meanwhile, the screw (1) can not be operated, and the ground switch can not be pushed into the switch cabinet, so that the switch-on can not be pushed into the ground switch cabinet.
When the switch cabinet handcart is in a test position, the top sleeve (17-1) is pressed by components in the switch cabinet handcart, the notch position of the top sleeve (17-1) corresponds to the sliding groove positions of the left sliding plate (6), the right sliding plate (8) and the ground knife interlocking plate (9), the left sliding plate (6), the right sliding plate (8) and the ground knife interlocking plate (9) can be pulled left and right, after the switch cabinet handcart leaves the test position, the top sleeve (17-1) resets under the action of the top sleeve reset spring (17-3), the step position of the top sleeve (17-1) corresponds to the sliding grooves of the left sliding plate (6), the right sliding plate (8) and the ground knife interlocking plate (9), the left bolt (5), the right bolt (7) and the ground knife interlocking plate (9) are limited in the switch cabinet, and the function that the switch cabinet handcart cannot be pulled out from the switch cabinet and the ground switch in the switch cabinet cannot be operated is realized.
The internal structure of the specific implementation mode is simple, the interlocking function is complete and reliable, various complex error-preventing interlocking functions are realized only through the connection of the screw rod from the experimental position to the working position, the use is convenient, and the switch cabinet handcart is a good substitute product in the current industry and has wide market application prospect.
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. A switchgear trolley propulsion mechanism, comprising: the device comprises a screw rod (1), a nut seat (2), a beam bracket (3), an inner bending plate (4), a left bolt (5), a left sliding plate (6), a right bolt (7), a right sliding plate (8), a ground knife interlocking plate (9), a front support plate (10), a rear support plate (11), a front locking plate (12), a rear locking plate (13), a middle locking plate (14), a limiting block (15), an interlocking rotating shaft (16), an interlocking top sleeve (17), a position square cap (18), a locking piece (19), a rear rotating plate (20) and an auxiliary switch (21); the inner bending plate (4) is arranged in the beam bracket (3), and the screw rod (1) penetrates through the beam bracket (3), the inner bending plate (4) and the nut seat (2); the left bolt (5) and the right bolt (7) are provided with 2 groups, and are respectively arranged on the left sliding plate (6) and the right sliding plate (8), the left sliding plate (6) and the right sliding plate (8) are arranged in the sliding groove of the inner bending plate (4), and the left bolt (5) and the right bolt (7) can extend out of or retract into the beam bracket (3) by pulling the handles on the left sliding plate (6) and the right sliding plate (8); the right end of the ground knife interlocking plate (9) is arranged in a chute at the right side of the cross beam bracket (3), the left end is arranged at the outer side of the inner bending plate (4) through a shaft sleeve, and the head of the ground knife interlocking plate (9) can extend or retract into the cross beam bracket (3) by pulling a handle on the ground knife interlocking plate (9); the nut seat (2) is fixed with the front support plate (10) and the rear support plate (11) through bolts, and two limiting blocks (15) are respectively welded on the front support plate (10) and the rear support plate (11); the interlocking rotating shaft (16) penetrates through the front support plate (10) and the rear support plate (11), the front lock plate (12), the rear lock plate (13) and the middle lock plate (14) are fixed on the interlocking rotating shaft (16) and are respectively positioned at the front part, the rear part and the middle part of the front support plate (10) and the rear support plate (11), the front lock plate (12), the rear lock plate (13), the middle lock plate (14) and the interlocking rotating shaft (16) can rotate in a certain position, and springs are arranged on the interlocking rotating shaft (16) and the middle lock plate (14) to enable the interlocking rotating shaft (16) to reset; the two position square caps (18) are respectively arranged at the front part and the rear part of the screw rod; the locking piece (19) is arranged at the head of the screw rod and positioned at the outer side of the beam bracket (3); the rear rotating plate (20) is arranged on the rear supporting plate (11) through a shaft sleeve, the position of the rear rotating plate corresponds to the position of the limiting block (15), the auxiliary switch (21) is fixed on the rear supporting plate (11), and the state of the auxiliary switch (21) can be switched when the rear rotating plate (20) is rotated.
2. A switch cabinet trolley propulsion mechanism in accordance with claim 1, characterized in that the front lock plate (12) comprises a lock plate (12-1), a front position plate (12-2) welded on the lock plate (12-1), and a screw (12-3) mounted on the lock plate (12-1), the front position plate (12-2) corresponding to the front limit block (15-1).
3. The pushing mechanism of the switch cabinet handcart according to claim 1, wherein the interlocking top cover (17) comprises a top cover (17-1), a limit screw (17-2) and a top cover reset spring (17-3), the limit screw (17-2) and the top cover reset spring (17-3) are arranged inside the top cover (17-1), the limit screw (17-2) is fixed on the cross beam bracket (3) through a nut, the top cover (17-1) is provided with steps and grooves, the positions of the limit screw and the grooves are consistent with the positions of the sliding grooves of the left sliding plate (6), the right sliding plate (8) and the ground knife interlocking plate (9), the top cover (17-1) locks the left sliding plate (6), the right sliding plate (8) and the ground knife interlocking plate (9) under the action of the top cover reset spring (17-3), and the top cover (17-1) is pressed to enable the steps of the limit screw to pass over the left sliding plate (6), the right sliding plate (8) and the ground knife interlocking plate (9) to unlock the left sliding plate (6), the right sliding plate (8) and the ground knife interlocking plate (9).
4. The pushing mechanism of the switch cabinet handcart according to claim 1, wherein the fore shaft piece (19) comprises a fore shaft plate (19-1), a limiting piece (19-2) and fore shaft pressure springs (19-3), the limiting piece (19-2) is fixed at the head of the screw rod (1), the two fore shaft pressure springs (19-3) are respectively arranged at two ends of the fore shaft plate (19-1), the fore shaft plate (19-1) and the fore shaft pressure springs (19-3) are arranged on the cross beam bracket (3), and the fore shaft plate (19-1) is pressed to enable the head of the screw rod (1) to leak.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710700648.3A CN107465139B (en) | 2017-08-16 | 2017-08-16 | Handcart propulsion mechanism of switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710700648.3A CN107465139B (en) | 2017-08-16 | 2017-08-16 | Handcart propulsion mechanism of switch cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107465139A CN107465139A (en) | 2017-12-12 |
| CN107465139B true CN107465139B (en) | 2023-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710700648.3A Active CN107465139B (en) | 2017-08-16 | 2017-08-16 | Handcart propulsion mechanism of switch cabinet |
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| CN (1) | CN107465139B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113013769B (en) * | 2021-01-27 | 2023-09-12 | 许继电气股份有限公司 | Breaker handcart propelling device with buckle device |
| CN117767139B (en) * | 2024-02-22 | 2024-06-21 | 国网湖北省电力有限公司技术培训中心 | Safe self-driven electrical cabinet suitable for novel power system |
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| JP2006149043A (en) * | 2004-11-18 | 2006-06-08 | Terasaki Electric Co Ltd | Interlock device of distribution panel |
| CN101697402A (en) * | 2009-10-23 | 2010-04-21 | 江苏大全长江电器股份有限公司 | Interlocking device of breaker handcart advancing mechanism |
| CN205265123U (en) * | 2015-12-28 | 2016-05-25 | 温州兴机电器有限公司 | Advancing mechanism with interlocking function |
| CN206389055U (en) * | 2016-12-28 | 2017-08-08 | 施耐德电气(厦门)开关设备有限公司 | The handcart advancing mechanism of console mode breaker |
| CN207251051U (en) * | 2017-08-16 | 2018-04-17 | 上海洪电电气有限公司 | A kind of switch cabinet handcart propulsion mechanism |
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2017
- 2017-08-16 CN CN201710700648.3A patent/CN107465139B/en active Active
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|---|---|---|---|---|
| JP2006149043A (en) * | 2004-11-18 | 2006-06-08 | Terasaki Electric Co Ltd | Interlock device of distribution panel |
| CN101697402A (en) * | 2009-10-23 | 2010-04-21 | 江苏大全长江电器股份有限公司 | Interlocking device of breaker handcart advancing mechanism |
| CN205265123U (en) * | 2015-12-28 | 2016-05-25 | 温州兴机电器有限公司 | Advancing mechanism with interlocking function |
| CN206389055U (en) * | 2016-12-28 | 2017-08-08 | 施耐德电气(厦门)开关设备有限公司 | The handcart advancing mechanism of console mode breaker |
| CN207251051U (en) * | 2017-08-16 | 2018-04-17 | 上海洪电电气有限公司 | A kind of switch cabinet handcart propulsion mechanism |
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| CN107465139A (en) | 2017-12-12 |
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