CN211788787U - Manual locking device of three-station operating mechanism - Google Patents
Manual locking device of three-station operating mechanism Download PDFInfo
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- CN211788787U CN211788787U CN202020958878.7U CN202020958878U CN211788787U CN 211788787 U CN211788787 U CN 211788787U CN 202020958878 U CN202020958878 U CN 202020958878U CN 211788787 U CN211788787 U CN 211788787U
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Abstract
The utility model discloses a manual blocking device of three station operating mechanisms uses the electro-magnet as manual and electrically operated's shutting component, and the electro-magnet comprises two pairs of independent coils and movable iron core, keeps apart side and one of them a pair of mechanism ground connection side power control respectively by the mechanism. The locking of the electric operation loop when the three-station electric mechanism with the double-nut screw structure is manually operated and the locking of the manual operation function of the mechanism when the interlocking condition is not met are realized. Meanwhile, when one side of the isolation or grounding is in an operation state, the other side is locked to be incapable of operating. Therefore, the electric operation loop of the locking mechanism during manual operation can be realized, the locking manual operation when the interlocking condition in the aspect of the electric loop is not met is realized, and the independent power supply control of the isolation side and the grounding side of the mechanism is realized.
Description
Technical Field
The utility model relates to a power equipment technical field especially relates to a manual blocking device of three station operating mechanisms.
Background
In order to realize the miniaturization of a high-voltage electric appliance, in a gas insulated metal totally-enclosed combined electric appliance (GIS) product, the operation of a high-voltage isolating switch (DS) and a high-voltage grounding switch (ES) is respectively improved from the operation of two operating mechanisms to the operation of one three-station operating mechanism, so that the isolation switch and the grounding switch are separated; the disconnecting switch is switched on and the grounding switch is switched off; the isolating switch is divided into three different switch states of the grounding switch and the grounding switch.
At present, most of three-station electric mechanisms on the market adopt double motors to respectively drive an isolation screw nut and a grounding screw nut to finish power output. When manual operation is needed, the handle is inserted into the mechanism box body and connected with the lead screw, and the rotation of the motor is replaced by rotating the handle, so that the operation of the mechanism is realized. In the aspect of electric operation control, four contactors respectively control the switching-on and switching-off actions of each motor.
Because the high-voltage power industry has high requirements on safe operation, the possibility that the equipment is operated by mistake in function is required to be avoided as much as possible, and for a three-station electric mechanism, the mechanism is required to be isolated, the other side of the mechanism is not allowed to act when one side of the mechanism is operated by grounding, and the other operation cannot be carried out when one of the electric operation and the manual operation is carried out. Meanwhile, in order to avoid manual misoperation, part of users require that an operation power supply is provided for a certain device during maintenance operation, and for a three-station mechanism, a situation that power is independently supplied to a certain side of the mechanism exists, so that independent power supplies need to be provided for an isolation side and a grounding side of the three-station mechanism respectively, and the manual interlocking of the isolation side and the manual interlocking of the grounding side of the existing three-station mechanism share an electromagnet and a power supply loop, so that the operation condition that the user provides the power supply independently cannot be met.
Therefore, how to provide a manual locking device for a three-station operating mechanism to achieve locking mechanism electric operation loop during manual operation, and achieve locking manual operation when interlocking conditions in the electric loop are not satisfied, and achieve independent power control of an isolation side and a grounding side of the mechanism, is a technical problem to be solved urgently by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a manual blocking device of three station operating mechanisms to blocked mechanical system electrically-operated circuit when realizing manual operation realizes blocking manual operation when the aspect interlocking condition of electric circuit is unsatisfied simultaneously, realizes that the mechanism keeps apart side, the independent power control of ground connection side.
In order to achieve the above object, the utility model provides a following technical scheme:
a manual locking device of a three-station operating mechanism comprises a side plate, a locking plate, a pull pin, a first electromagnet, a second electromagnet, a locking rod, a guide rod, a padlock plate, a magnetic blow microswitch, an isolation side microswitch and a grounding side microswitch, wherein,
the first electromagnet and the second electromagnet are both arranged between the locking plate and the side plate, the first electromagnet is connected in a control loop at the isolating side of the mechanism, the second electromagnet is connected in a control loop at the grounding side of the mechanism,
the locking plate is arranged on the side plate in a sliding manner, a first bulge, a first groove and a second bulge are sequentially arranged from left to right below the locking plate, the grounding side micro switch, the magnetic blow micro switch and the isolation side micro switch are sequentially arranged on the side plate from left to right, the first bulge is matched with the grounding side micro switch for use, the first groove is matched with the magnetic blow micro switch for use, and the second bulge is matched with the isolation side micro switch for use,
the lock plate is provided with a first through hole, the side plate is provided with a second through hole, the first through hole and the second through hole are matched with a pull pin, the first groove is arranged right below the first through hole, the locking rod is arranged on the side plate and is matched with a lock groove arranged on the lock plate for use,
the locking plate is provided with a third through hole, the side plate is provided with a guide rod, the guide rod is matched with the third through hole for use,
and a fourth through hole for inserting the operating handle is formed in the locking plate.
Preferably, a spring is sleeved on the pulling pin, and the top of the pulling pin is inserted into the first through hole and the second through hole under the action of the spring, so that the locking plate cannot move relative to the side plate.
Preferably, one side of the lock plate facing the side plate is provided with an elongated slot for accommodating the movable iron core of the first electromagnet and the movable iron core of the second electromagnet.
Preferably, the first groove is a triangular groove.
Preferably, the first protrusion is a triangular protrusion.
Preferably, the second protrusion is a triangular protrusion.
Preferably, the locking rod and the locking groove are both two and distributed on both sides of the center line of the locking plate.
Preferably, the first electromagnet and the second electromagnet are distributed on two sides of a center line of the lock plate.
Preferably, the locking plate is provided with a hanging locking plate,
the guide rod is provided with a fifth through hole, the padlock plate is provided with a sixth through hole, and the fifth through hole and the sixth through hole are the same in size.
Preferably, the guide rods and the hanging and locking plates are two and distributed on two sides of the center line of the locking plate.
The utility model provides a manual locking device of a three-station operating mechanism, which comprises a side plate, a lock plate, a pull pin, a first electromagnet, a second electromagnet, a locking rod, a guide rod, a hanging lock plate, a magnetic blow micro switch, an isolation side micro switch and a grounding side micro switch, wherein,
the first electromagnet and the second electromagnet are both arranged between the locking plate and the side plate, the first electromagnet is connected in a control loop at the isolating side of the mechanism, the second electromagnet is connected in a control loop at the grounding side of the mechanism,
the locking plate is arranged on the side plate in a sliding manner, a first bulge, a first groove and a second bulge are sequentially arranged from left to right below the locking plate, the grounding side micro switch, the magnetic blow micro switch and the isolation side micro switch are sequentially arranged on the side plate from left to right, the first bulge is matched with the grounding side micro switch for use, the first groove is matched with the magnetic blow micro switch for use, and the second bulge is matched with the isolation side micro switch for use,
the lock plate is provided with a first through hole, the side plate is provided with a second through hole, the first through hole and the second through hole are matched with a pull pin, the first groove is arranged right below the first through hole,
the locking rod is arranged on the side plate and is matched with a locking groove arranged on the locking plate for use,
the locking plate is provided with a third through hole, the side plate is provided with a guide rod, the guide rod is matched with the third through hole for use,
and a fourth through hole for inserting the operating handle is formed in the locking plate.
The utility model provides a manual blocking device of three station operating mechanisms uses the electro-magnet as manual and electrically operated's shutting component, and the electro-magnet comprises two pairs of independent coils and moves the iron core, keeps apart side and mechanism ground connection side power control one of them by the mechanism respectively. The locking of the electric operation loop when the three-station electric mechanism with the double-nut screw structure is manually operated and the locking of the manual operation function of the mechanism when the interlocking condition is not met are realized. Meanwhile, when one side of the isolation or grounding is in an operation state, the other side is locked to be incapable of operating. Therefore, the electric operation loop of the locking mechanism during manual operation can be realized, the locking manual operation when the interlocking condition in the aspect of the electric loop is not met is realized, and the independent power supply control of the isolation side and the grounding side of the mechanism is realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a manual locking device of a three-position operating mechanism provided in an embodiment of the present invention;
fig. 2 is a schematic structural view of the manual locking device of the three-position operating mechanism according to the embodiment of the present invention after the locking plate is moved to the left;
fig. 3 is a schematic side view of the manual locking device of the three-position operating mechanism provided in the embodiment of the present invention.
In the above fig. 1-3:
the device comprises a guide rod 1, an electromagnet 2, a locking rod 3, an isolation side micro switch 4, a pull pin 5, a lock plate 6, a side plate 7, a grounding side micro switch 8, a magnetic blow micro switch 9, a padlock plate 10 and a spring 11.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 3, fig. 1 is a schematic structural diagram of a manual locking device of a three-position operating mechanism according to an embodiment of the present invention; fig. 2 is a schematic structural view of the manual locking device of the three-position operating mechanism according to the embodiment of the present invention after the locking plate is moved to the left; fig. 3 is a schematic side view of the manual locking device of the three-position operating mechanism provided in the embodiment of the present invention.
Interpretation of terms:
three station electric mechanism: the motor operating mechanism is used for driving the three-position isolating grounding switch. The motor can drive the output shaft to drive the three-position isolation grounding switch to move to three working positions, namely closing, opening and closing of the isolation switch.
Mechanism isolation side: and the three-station mechanism is used for driving the switch to move between the closing and opening of the isolating switch.
Mechanism grounding side: and the three-station mechanism is used for driving the switch to move between the closing and opening of the grounding switch.
The brake separating position: the mechanism drives a lead screw nut through a motor to drive an output shaft to rotate to a position where a high-voltage switch is opened.
The switching-on position: the mechanism drives a screw nut through a motor to drive an output shaft to rotate to a position where a high-voltage switch is switched on.
The manual locking device of the three-station operating mechanism provided by the embodiment of the utility model comprises a side plate 7, a locking plate 6, a pulling pin 5, a first electromagnet, a second electromagnet, a locking rod 3, a guide rod 1, a padlock plate 10, a magnetic blow microswitch 9, an isolation side microswitch 4 and a grounding side microswitch 8, wherein,
the first electromagnet and the second electromagnet are both arranged between the locking plate 6 and the side plate 7, the first electromagnet is connected in a control loop at the isolating side of the mechanism, the second electromagnet is connected in a control loop at the grounding side of the mechanism,
the locking plate 6 is arranged on the side plate 7 in a sliding way, a first bulge, a first groove and a second bulge are sequentially arranged from left to right below the locking plate 6, the grounding-side microswitch 8, the magnetic blow microswitch 9 and the isolation-side microswitch 4 are sequentially arranged on the side plate 7 from left to right, the first bulge is matched with the grounding-side microswitch 8 for use, the first groove is matched with the magnetic blow microswitch 9 for use, the second bulge is matched with the isolation-side microswitch 4 for use,
the locking plate 6 is provided with a first through hole, the side plate 7 is provided with a second through hole, the first through hole and the second through hole are matched with a pull pin 5, the first groove is arranged right below the first through hole,
the locking rod 3 is arranged on the side plate 7 and is matched with a locking groove arranged on the locking plate 6 for use,
a third through hole is arranged on the locking plate 6, a guide rod 1 is arranged on the side plate 7, the guide rod 1 is matched with the third through hole for use,
the locking plate 6 is provided with a fourth through hole for inserting the operating handle.
The embodiment of the utility model provides a manual blocking device of three station operating mechanisms uses electro-magnet 2 as manual and electrically operated's shutting component, and electro-magnet 2 comprises two pairs of independent coils and movable iron core, divide into first electro-magnet and second electro-magnet promptly, keeps apart side and mechanism ground connection side power control one of them by the mechanism respectively and to a pair of. The locking of the electric operation loop when the three-station electric mechanism with the double-nut screw structure is manually operated and the locking of the manual operation function of the mechanism when the interlocking condition is not met are realized. Meanwhile, when one side of the isolation or grounding is in an operation state, the other side is locked to be incapable of operating. Therefore, the electric operation loop of the locking mechanism during manual operation can be realized, the locking manual operation when the interlocking condition in the aspect of the electric loop is not met is realized, and the independent power supply control of the isolation side and the grounding side of the mechanism is realized.
Wherein, the cover is equipped with spring 11 on the pull pin 5, and its top of pull pin 5 inserts first through-hole and second through-hole under the effect of spring 11 makes jam plate 6 can not move with curb plate 7 relatively. One side of the locking plate 6 facing the side plate 7 is provided with a long groove for accommodating the movable iron core of the first electromagnet and the second electromagnet. The first groove is a triangular groove. The first protrusion is a triangular protrusion. The second protrusion is a triangular protrusion.
Wherein, the locking rod 3 and the locking groove are both two and are distributed on both sides of the central line of the locking plate 6. The first electromagnet and the second electromagnet are distributed on two sides of the central line of the locking plate 6. The padlock plate 6 is provided with a padlock plate 10, the guide rod 1 is provided with a fifth through hole, the padlock plate 10 is provided with a sixth through hole, and the fifth through hole and the sixth through hole are the same in size. The guide rods 1 and the padlock plates 10 are two and distributed on two sides of the center line of the padlock plate 6.
The embodiment of the utility model provides a manual blocking device of three station operating mechanisms, when concrete implementation:
when the centre line of the locking plate 6 coincides with the centre line of the side plate 7, the device is in the electrically operated position. In this position, the magnetic blow microswitch 9 under the locking plate 6 is in an un-triggered natural state, its internal normally closed contact is connected in series in the electric operating circuit of the operating mechanism, the circuit is in a connected state, and the mechanism can be electrically operated.
The device is provided with a pull pin 5, and when the device is in an electric operation position, the top of the pull pin 5 is inserted into a round hole of a side plate 7 under the action of a spring 11, namely a second through hole, so that a locking plate 6 cannot move left and right. When manual operation is needed, an operator can pull the pull pin 5 out of the side plate 7 by hand and drive the lock plate 6 to move towards the direction of the isolation side or the grounding side by using the pull pin.
The device is provided with a lock plate 6, the lock plate 6 is provided with three elliptical long grooves, wherein the long groove in the middle upper direction can accommodate the electromagnet 2 moving iron core, if the electric interlocking condition is not met, the electromagnet 2 cannot be electrified normally for suction, and the lock plate 6 cannot move continuously to a manual operation position where the manual operation hole coincides with the screw rod because the lock plate is blocked by the electromagnet 2 moving iron core when moving. The long grooves, namely the locking grooves, arranged on the two sides above the locking rod 3 are used for accommodating the locking rod, and the two parts of the oval long grooves with different depths can realize the interlocking of the isolation side and the grounding side during manual operation. Two long grooves, i.e., third through holes, located at the lower portion of the locking plate 6 are used to accommodate the guide rods 1, and the guide rods 1 block the locking plate 6 so that it can move only in the horizontal direction as shown in fig. 1.
The left side and the right side of the locking plate 6 are provided with round holes, namely a fourth through hole, the round holes can accommodate the insertion of an operating handle, when the locking plate 6 moves to the position where the fourth through hole coincides with the manual operating hole on the side plate 7, the device is located at the manual operating position, and the mechanism can be manually operated through the handle.
A triangular groove, namely a first groove, is formed under the locking plate 6, and when the locking plate is positioned at an electric operation position, the first groove avoids a contact rod of the magnetic blow microswitch 9, so that the first groove is not triggered; when the locking plate 6 moves towards any direction of the isolation side or the grounding side, the locking plate 6 passes through a section of slope and then is contacted with the contact rod of the magnetic blow microswitch 9 through the horizontal plane of the locking plate, so that the locking plate is triggered.
Two symmetrical triangular bulges, namely a first bulge and a second bulge, are arranged on the left side and the right side below the locking plate 6 and used for switching the isolating side micro-switch 4 and the grounding side micro-switch 8 which are arranged at corresponding positions on the two sides of the lower end of the side plate. In the electrically operated position, the triangular projection is not in contact with the microswitch, and the isolation side microswitch 4 and the ground side microswitch 8 are in an un-triggered natural state. When the locking plate 6 moves towards any direction of the isolation side or the grounding side, the locking plate 6 passes through a section of slope and then is triggered by the contact of the highest point position of the triangular protrusion and the contact rods of the isolation side micro switch 4 and the grounding side micro switch 8. At this time, the locking plate 6 is continuously moved to the same direction, and after passing through a section of slope, the plane which is in the same horizontal plane with the electric operation position is contacted with the contact rods of the isolating side micro switch 4 and the grounding side micro switch 8, so that the locking plate is restored to the non-triggering state.
The device is provided with a locking rod 3, and the function of the locking rod is that when one side of the isolating or grounding switch is not in an opening position, namely the position of the other side of the isolating or grounding switch is not allowed to act, a main locking plate 6 of the card cannot move towards the direction capable of operating the other side.
The device is provided with a magnetic blow microswitch 9, which is formed by overlapping two identical magnetic blow microswitches and is arranged at the position right in the middle below a lock plate 6, each microswitch controls one side of the mechanism to be isolated or grounded respectively, and the action of the device is that when the lock plate 6 moves towards the direction of the isolated or grounded side, the contact surface of the lock plate 6 and the magnetic blow microswitch 9 is changed into a plane by a triangular notch, the plane is lower in position and can compress a contact rod of the magnetic blow microswitch 9 to trigger and switch, at the moment, a mechanism electric operation loop which is connected in series with a normally closed contact of the magnetic blow microswitch 9 is disconnected by switching a closed contact after the magnetic blow microswitch 9 is triggered, and therefore, the mechanism can not realize electric operation through the electric operation loop.
The device possesses guide bar 1 fixed on curb plate 7 and fixes padlock board 10 on jam plate 6, and the round hole that has the same size is opened on guide bar 1 and the padlock board 10, and its function lies in when padlock board 10 moves to above-mentioned two round hole coincidence positions along with jam plate 6, can use the padlock to pass two parts from the round hole coincidence position and lock for jam plate 6 can't continue to move. In this position, the magnetic blow microswitch 9 has triggered the opening of the electrically operated circuit, but at the same time the locking plate 6 has not yet moved to the manually operated position in which its circular hole coincides with the circular hole of the side plate 7, so that the mechanism is locked in a state in which it is neither electrically nor manually operable.
The device has two microswitches, namely an isolation side microswitch 4 and a grounding side microswitch 8, which are arranged at the left side and the right side below a side plate 7. The two microswitches are respectively provided with a pair of normally open contacts which are respectively connected in series in the control loop of the electromagnet 2 corresponding to the two microswitches, under the condition that the external interlocking condition is met (namely, the external condition allows manual operation of a mechanism), when the locking plate 6 moves to enable any one of the microswitches to be triggered, the electromagnet 2 corresponding to the microswitches is electrified to attract the movable iron core due to the connection of the control loop, and when the locking plate 6 continues to move to the isolating side microswitch 4 and the grounding side microswitch 8 and is not triggered, the electromagnet 2 loses power due to the disconnection of the loop to release the movable iron core.
The device has combined type electromagnet 2 which is formed by arranging two electromagnets with the same style and mutually independent side by side, wherein each electromagnet has an independent coil and a movable iron core and is respectively connected in a mechanism isolation control loop and a grounding side control loop. In the electric operation position, when any electromagnet is electrified and attracted, the operator can be allowed to move the locking plate 6 to the allowed direction until the manual operation position. Otherwise, manual operation is not possible.
In order to further facilitate understanding, the embodiment of the utility model provides a manual blocking device of three station operating mechanisms's theory of operation does:
when the embodiment of the utility model provides a manual blocking device of three station operating mechanisms department is in the position that figure 1 shows:
the mechanism is in an electric operation state, at the moment, the magnetic blow microswitch 9 is not triggered, the normally closed contact of the magnetic blow microswitch is respectively connected in series in the mechanism isolation and grounding side control loop, the loop is in a conduction state, and the mechanism can be normally operated electrically. On the other hand, the lock plate 6 does not move to the left and right, and the manual operation holes on both sides are not opened, so that the mechanism cannot be manually operated.
When the embodiment of the utility model provides a manual blocking device of three station operating mechanisms is located the position that fig. 2 shows:
from the position shown in fig. 1, when an operator pulls out the pull pin 5 and drives the lock plate 6 to move to the left, the triangular protrusion below the lock plate 6 triggers the isolating-side microswitch 4 to switch on the electromagnet arranged near the left in the combined electromagnet 2, so that the moving iron core of the electromagnet is attracted, and the lock plate 6 is allowed to move to the left continuously. Meanwhile, the feeler lever of the magnetic blow microswitch 9 is not positioned in the triangular groove of the locking plate 6 any more, and is compressed and triggered to disconnect the electric operation loop of the mechanism. When the locking plate 6 moves to the tail end of the left side stroke, the locking plate is limited by the locking rod 3 and the guide rod 1, the round hole in the right side of the locking plate 6 is concentric with the round hole in the right side of the side plate 7, an operator can insert the handle and operate the screw rod in the right side of the mechanism, and the closing or opening operation of the isolation side of the mechanism is completed. If the grounding side (left screw) is required to be operated, the lock plate 6 is moved in the reverse direction.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A manual locking device of a three-station operating mechanism is characterized by comprising a side plate, a locking plate, a pull pin, a first electromagnet, a second electromagnet, a locking rod, a guide rod, a locking plate, a magnetic blow microswitch, an isolation side microswitch and a grounding side microswitch, wherein,
the first electromagnet and the second electromagnet are both arranged between the locking plate and the side plate, the first electromagnet is connected in a control loop at the isolating side of the mechanism, the second electromagnet is connected in a control loop at the grounding side of the mechanism,
the locking plate is arranged on the side plate in a sliding manner, a first bulge, a first groove and a second bulge are sequentially arranged from left to right below the locking plate, the grounding side micro switch, the magnetic blow micro switch and the isolation side micro switch are sequentially arranged on the side plate from left to right, the first bulge is matched with the grounding side micro switch for use, the first groove is matched with the magnetic blow micro switch for use, and the second bulge is matched with the isolation side micro switch for use,
the lock plate is provided with a first through hole, the side plate is provided with a second through hole, the first through hole and the second through hole are matched with a pull pin, the first groove is arranged right below the first through hole,
the locking rod is arranged on the side plate and is matched with a locking groove arranged on the locking plate for use,
the locking plate is provided with a third through hole, the side plate is provided with a guide rod, the guide rod is matched with the third through hole for use,
and a fourth through hole for inserting the operating handle is formed in the locking plate.
2. The manual locking device of a three-position operating mechanism according to claim 1, wherein a spring is sleeved on the pull pin, and the top of the pull pin is inserted into the first through hole and the second through hole under the action of the spring, so that the locking plate cannot move relative to the side plate.
3. The manual locking device of a three-position operating mechanism according to claim 1, wherein a side of the locking plate facing the side plate is provided with an elongated slot for accommodating the movable iron core of the first electromagnet and the second electromagnet.
4. The manual three-position actuator latch of claim 1, wherein the first recess is a triangular recess.
5. The manual three-position actuator latch of claim 1, wherein the first projection is a triangular projection.
6. The manual three-position actuator latch of claim 1, wherein said second projection is a triangular projection.
7. The manual locking device of claim 1, wherein the locking rod and the locking groove are two and are distributed on two sides of the center line of the locking plate.
8. The manual locking device of a three-position operating mechanism according to claim 1, wherein the first electromagnet and the second electromagnet are distributed on both sides of a center line of the locking plate.
9. The manual locking device of a three-position operating mechanism according to claim 1, wherein the locking plate is provided with a hanging locking plate,
the guide rod is provided with a fifth through hole, the padlock plate is provided with a sixth through hole, and the fifth through hole and the sixth through hole are the same in size.
10. The manual locking device of a three-position operating mechanism according to claim 9, wherein the guide rod and the padlock plate are two and distributed on two sides of a center line of the padlock plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020958878.7U CN211788787U (en) | 2020-05-29 | 2020-05-29 | Manual locking device of three-station operating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020958878.7U CN211788787U (en) | 2020-05-29 | 2020-05-29 | Manual locking device of three-station operating mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN211788787U true CN211788787U (en) | 2020-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020958878.7U Active CN211788787U (en) | 2020-05-29 | 2020-05-29 | Manual locking device of three-station operating mechanism |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115206725A (en) * | 2022-08-22 | 2022-10-18 | 泰安市泰和电力设备有限公司 | Locking pin device of double-motor three-station operating mechanism |
-
2020
- 2020-05-29 CN CN202020958878.7U patent/CN211788787U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115206725A (en) * | 2022-08-22 | 2022-10-18 | 泰安市泰和电力设备有限公司 | Locking pin device of double-motor three-station operating mechanism |
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