CN108631203B - Draw-out type power distribution cabinet and auxiliary switch triggering mechanism on draw-out type power distribution cabinet - Google Patents
Draw-out type power distribution cabinet and auxiliary switch triggering mechanism on draw-out type power distribution cabinet Download PDFInfo
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- CN108631203B CN108631203B CN201810569060.3A CN201810569060A CN108631203B CN 108631203 B CN108631203 B CN 108631203B CN 201810569060 A CN201810569060 A CN 201810569060A CN 108631203 B CN108631203 B CN 108631203B
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- drawer
- auxiliary switch
- mounting
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- rotating rod
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
- H02B11/127—Withdrawal mechanism
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
- H01H3/16—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. for a door switch, a limit switch, a floor-levelling switch of a lift
- H01H3/161—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. for a door switch, a limit switch, a floor-levelling switch of a lift for actuation by moving a closing member, e.g. door, cover or lid
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- Computer Security & Cryptography (AREA)
- Power Engineering (AREA)
- Drawers Of Furniture (AREA)
- Trip Switchboards (AREA)
Abstract
The invention provides a draw-out type power distribution cabinet and an auxiliary switch triggering mechanism on the draw-out type power distribution cabinet; the auxiliary switch triggering mechanism comprises: the display mechanism is provided with a display mark fixed on the drawer and a display structure for displaying the position of the drawer relative to the cabinet body along with the movement of the drawer; the transmission mechanism is arranged on the drawer, and the input end is provided with a matching structure which is matched with the touch of the traction structure on the cabinet body along with the movement of the drawer, and the transmission mechanism drives the display structure to move to the corresponding display mark along with the movement position of the drawer relative to the cabinet body; the triggering structure is arranged on a part corresponding to the auxiliary switch in the transmission mechanism and triggers the corresponding auxiliary switch at the corresponding functional position. The auxiliary switch is triggered by a triggering structure arranged on a transmission mechanism in the three-position display assembly, so that the installation space is reasonably utilized, and the auxiliary switch cannot interfere with movement of other parts; and the traction surface is not required to be specially arranged on the traction plate, so that the structure is simplified, and the manufacturing cost is reduced.
Description
Technical Field
The invention relates to the technical field of low-voltage control appliances, in particular to an auxiliary switch triggering mechanism for a draw-out type power distribution cabinet.
Background
The low-voltage power distribution cabinet is used for power transmission, power distribution and electric energy conversion, and is suitable for industries such as power plants, petroleum, chemical industry, metallurgy, spinning, high-rise buildings and the like. The low-voltage power distribution cabinet is divided into a fixed type power distribution cabinet and a drawing type power distribution cabinet according to a structural mode. The draw-out power distribution cabinet consists of a fixed cabinet body and a drawer unit provided with electrical elements.
The power distribution industry has strict requirements on the design of a draw-out low-voltage power distribution cabinet. In the draw-out type low-voltage power distribution cabinet, drawers of each loop are provided with an operating mechanism for pushing and drawing out at three positions of connection, test and isolation. The mechanism can be freely pushed in and pulled out at the corresponding positions and the positions are self-locking.
In the prior art, chinese patent publication No. CN104362533A discloses a novel push interlocking mechanism for a low-voltage pull-out drawer, which comprises a position control auxiliary contact structure unit 4 and a three-position display structure unit 5. The position control auxiliary contact structure unit 4 includes a position control auxiliary switch 41 and an operation lever 42 provided on the position control auxiliary switch 41. The three-position display structure unit 5 comprises a three-position traction plate 51, a rack 52, a gear 53 and a three-position positioning display traction surface 26-7. The three-position positioning display traction plate 26 is provided with an auxiliary contact first traction surface 26-1a, an auxiliary contact second traction surface 26-1b and a three-position positioning display traction surface 26-3; wherein the three position locating display traction surface 26-3 includes a connection position traction surface 26-3b, a test position traction surface 26-3a, a first transition surface 26-3d, and a second transition surface 26-3c. The three-position traction plate 51 is provided with a traction column 51-1, a traction column 51-2 and a limiting hole 51-3, the limiting hole 51-3 limits the rotation of the three-position traction plate 51, the traction column 51-1 is matched with the three-position positioning display traction surface 26-7, and the traction hole 51-2 is used for traction of the rack 52.
In the drawer pushing process, the three-position positioning display traction surface 26-3 drives the traction plate 51 to rotate through the traction column 51-2, the traction column 51-2 drives the rack 52 to move so as to drive the gear 53 to rotate, the gear 53 is provided with the indicator 53-1, and the indicator 53-1 points to a position mark on the position display plate, so that the position of the drawer relative to the cabinet body is displayed. The auxiliary contact first traction surface 26-1a and the auxiliary contact second traction surface 26-1b trigger different operating levers 42 during movement with the drawer, thereby triggering the position control auxiliary switch.
The above prior art, although achieving the purpose of triggering the corresponding auxiliary switch, has certain drawbacks.
Firstly, the three-position positioning display traction plate is arranged on the cabinet body at the bottom of the drawer, and the auxiliary switch is arranged on the mechanism cover, namely the top end of the three-position display mechanism outer shell. Therefore, the operation lever for the auxiliary switch needs to penetrate the whole outer casing, and a long operation lever is needed. In addition, the rotating parts including the traction plates and rotatably arranged on the bottom plate are arranged in the outer shell, so that the operating rod penetrating through the outer shell does not interfere with other parts, and the respective movement areas are required to be distinguished, so that the size of the whole device is increased.
Secondly, the three-position positioning display traction plate is generally formed by die casting, an auxiliary contact traction surface for triggering an auxiliary contact is arranged on the three-position positioning display traction plate, and different auxiliary contacts are triggered by arranging different traction surfaces, so that the structure of the three-position positioning display traction plate is complex, and the processing cost is increased; and the requirements on the installation precision and the processing precision of the traction plates for positioning and displaying three positions of the traction faces with different functions are high, and the overall cost is increased.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defects of large occupied space, complex structure, high cost and the like in the prior art, thereby providing an auxiliary switch triggering mechanism for a draw-out power distribution cabinet. The invention also provides a drawing-out type power distribution cabinet.
The invention provides an auxiliary switch triggering mechanism for a draw-out power distribution cabinet, which comprises the following components:
the display mechanism is provided with a display mark fixed on the drawer and a display structure for displaying the position of the drawer relative to the cabinet body along with the movement of the drawer;
the transmission mechanism is arranged on the drawer, and the input end of the transmission mechanism is provided with a matching structure which is matched with the touch of the traction structure on the cabinet body along with the movement of the drawer, and the transmission mechanism drives the display structure to move to the corresponding position of the display mark along with the movement position of the drawer relative to the cabinet body;
the triggering structure is arranged on a part corresponding to the auxiliary switch in the transmission mechanism, and the corresponding auxiliary switch is triggered at a corresponding functional position.
Optionally, the triggering structure is a protruding structure protruding from a transmission member of the transmission mechanism toward the auxiliary switch.
Optionally, the transmission mechanism has a rotating rod assembly rotatable relative to a rotation axis perpendicular to the drawer bottom, and the trigger structure is disposed on one of the rods in the rotating rod assembly.
Optionally, the rotating rod assembly includes a first rotating rod and a second rotating rod which are rotatably installed around a direction perpendicular to the drawer bottom plate, one end of the first rotating rod, which is opposite to the rotating shaft, is provided with a matching structure matched with the traction structure, and the other end of the first rotating rod is in sliding fit with one end of the second rotating rod; the other end of the second rotating rod is a driving structure for driving the display structure to act; the trigger structure is arranged on the first rotating rod.
Optionally, the sliding fit includes a sliding groove structure provided on one of the first rotating rod and the second rotating rod, and a sliding pin provided on the other and sliding in the sliding groove structure.
Optionally, the number of the auxiliary switches is two, and the corresponding functional positions are respectively a test position and a connection/electric operation position; the two auxiliary switches are arranged on the drawer at corresponding test positions and connection/electric operation positions along the moving path of the trigger structure; the transmission mechanism triggers the corresponding auxiliary switch when the drawer moves to the test position and the connection/electric operation position.
Optionally, the automatic control device further comprises an installation bottom plate corresponding to the drawer bottom plate and an installation top cover buckled on the installation bottom plate, wherein the transmission mechanism is installed on the installation bottom plate and located between the installation top cover and the installation bottom plate, and the auxiliary switch is installed on the installation top cover.
Optionally, the matching structure is a shaft-like structure penetrating through the mounting bottom plate and extending to a matching height with the traction structure; the mounting bottom plate is correspondingly provided with an arc-shaped extending path groove.
Optionally, the auxiliary switch is arranged on the outer side of the installation top cover relative to the trigger structure, and an intermediate acting piece is arranged between the trigger structure and the auxiliary switch.
Optionally, the intermediate acting piece including set up in the shell fragment in the installation top cap outside, shell fragment one end fixed mounting in the installation top cap, the free end is provided with and runs through the installation top cap orientation trigger structure extension's action pole, action pole opposite side top is provided with auxiliary switch.
Optionally, the display mechanism comprises a mounting bottom plate arranged corresponding to the drawer bottom plate and a mounting vertical plate arranged corresponding to the drawer outer side plate and vertically arranged on the mounting bottom plate, and the display mechanism comprises a rack and a gear matched with the rack; the gear is rotatably arranged on the mounting vertical plate, and a gear shaft linked with the gear is provided with the display structure for indicating position information; the rack slides relative to the mounting riser in a direction parallel to the mounting baseplate under the drive of the transmission mechanism.
The invention also provides a drawing-out type power distribution cabinet which comprises the auxiliary switch triggering mechanism.
The technical scheme of the invention has the following advantages:
the invention provides an auxiliary switch triggering mechanism for a draw-out power distribution cabinet, which utilizes a triggering structure arranged on a transmission mechanism in a three-position display assembly to trigger an auxiliary switch, and when two or more auxiliary switches exist, a plurality of triggering structures can be respectively triggered or arranged in the transmission mechanism process through the triggering structure. The design of the device reasonably utilizes the installation space, and does not interfere with the movement of other parts; and the traction surface of the auxiliary switch is not required to be specially arranged on the traction plate, so that the structure is simplified, and the manufacturing cost is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of a drawer in a draw-out power distribution cabinet provided by the invention;
FIG. 2 is a schematic structural view of a first embodiment of the present invention;
FIG. 3 is a schematic view of another angle of the first embodiment of the present invention;
fig. 4 is a schematic structural diagram of an auxiliary switch triggering mechanism according to a first embodiment of the present invention;
FIG. 5 is a schematic view of a mounting base according to a first embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a three-position display assembly according to a first embodiment of the present invention;
FIG. 7 is a schematic view of the first rotating lever of FIG. 6;
FIG. 8 is a schematic view of the second rotating lever of FIG. 6;
FIG. 9 is a schematic view of the intermediate acting element of FIG. 6;
fig. 10 is a schematic structural view of a positioning block according to a first embodiment of the present invention;
FIG. 11 is a schematic view of an operation interlocking mechanism according to a first embodiment of the present invention;
FIG. 12 is a schematic view of the mounting riser of FIG. 11;
FIG. 13 is a schematic view of the first reaction member of FIG. 11;
FIG. 14 is a schematic view of the rotary cam of FIG. 11;
FIG. 15 is a schematic view of an operation locking mechanism according to a first embodiment of the present invention;
FIG. 16 is a schematic view of the structure of the operating locking mechanism with the lock housing removed;
FIG. 17 is a schematic view of the push rod of FIG. 16;
FIG. 18 is a schematic view of the lock lever of FIG. 16;
FIG. 19 is a schematic view of a second embodiment of the present invention;
FIG. 20 is a schematic view of an operational interlock mechanism according to a second embodiment of the present invention;
FIG. 21 is a schematic view of the mounting riser of FIG. 20;
fig. 22 is a schematic view of the first acting element of fig. 20.
Fig. 23 is a schematic view of the second reaction member of fig. 20.
Reference numerals illustrate:
1-drawer outer panel, 2-drawer left panel, 3-drawer bottom panel, 4-operating button, 5-push-pull handle, 6-rotary handle, 7-push rod, 71-push rod protrusion, 72-electric operation protrusion, 73-push rod slope, 74-inner end, 75-outer end, 8-display structure, 9-auxiliary riser, 10-mounting cap, 11-mounting riser, 111-rotary cam mounting hole, 112-through slot, 12-intermediate acting member, 121-spring piece, 122-acting lever, 13-auxiliary switch, 14-mounting bottom panel, 141-path slot, 15-first rotating lever, 16-triggering structure, 17-mating structure, 18-gear, 19-gear shaft, 20-rack 21-first biasing member, 22-second rotating lever, 23-first sliding slot, 24-first sliding pin, 25-driving structure, 26-positioning block, 261-first limiting hole, 262-second limiting hole, 263-blocking projection, 27-rotating cam, 271-eccentric projection, 28-first acting member, 281-plate-like body 282-first interlock projection, 283-second interlock projection, 29-drive bias, 30-lock housing, 31-lock lever, 32-lock lever drive shaft, 33-push rod bias, 34-lock lever bias, 35-rotary drive mechanism, 351-drive shaft, 36-second action member, 361-drive chute, 362-blocking portion, 101-display the mark.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Fig. 1 to 23 show an embodiment of a draw-out power distribution cabinet provided by the invention.
The draw-out type power distribution cabinet comprises a cabinet body and a drawer, wherein the cabinet body is fixedly arranged, and the drawer is installed on the cabinet body in a drawing mode. Corresponding electrical components are placed in the drawer. The drawer has three positions of separation, test and connection/electric operation in the process of drawing out relative to the cabinet body. The direction of the push-pull motion of the drawer relative to the cabinet is referred to as the drawer moving direction.
As can be seen from fig. 1, the drawer comprises a cuboid box structure for providing a containing space for corresponding electric elements, and the top surface of the box structure is open, and specifically comprises a drawer bottom plate 3 positioned on the bottom side surface of the cuboid structure, a drawer outer side plate 1 positioned on the outer side surface, a drawer left side plate 2 positioned on the left side surface and a drawer right side plate positioned on the right side surface. The drawer outer plate 1, the drawer right plate and the drawer left plate 2 are arranged perpendicular to the drawer bottom plate 3. The drawer outer panel 1 is provided with an operation button 4, a push-pull handle 5, a rotary handle 6 and a display mark 101 for identifying three positions. The push-pull operation of the drawer relative to the cabinet body is realized through the push-pull handle 5.
In the accommodation space of the drawer, the drawer is provided with a mounting base, a mounting riser 11 and a mounting top cover 10. The mounting base and the mounting riser 11 are fixedly mounted to the drawer bottom 3. The mounting base comprises a mounting base plate 14 and an auxiliary riser 9. The mounting base plate 14 is a plate-like structure provided corresponding to the drawer base plate 3 with an extension plane parallel to the drawer base plate 3. The mounting riser 11 is a plate-like structure provided in correspondence with the drawer outside plate 1 with an extension surface parallel to the drawer outside plate 1. The auxiliary riser 9 has a plate-like structure bent upward from the edge of the mounting floor 14 and parallel to the mounting riser 11. The mounting top cover 10 is buckled above the mounting bottom plate 14 and forms a mounting cavity with the mounting base.
The drawer comprises a three-position display assembly, an auxiliary switch 13 triggering mechanism, an operation locking mechanism and an operation interlocking mechanism.
Referring to fig. 2 to 10, the three-position display assembly includes a driving mechanism and a display mechanism mounted to the drawer, and a blocking protrusion 263 mounted to the cabinet. The transmission mechanism includes a rotating lever assembly rotatable relative to a rotational axis perpendicular to the mounting base plate 14. The rotating lever assembly includes a first rotating lever 15 and a second rotating lever 22 rotatably mounted to the drawer bottom 3 through a first rotating shaft and a second rotating shaft, respectively. The first rotary lever 15 and the second rotary lever 22 are each of a V-shaped lever structure, and the rotary plane is parallel to the extension plane of the drawer bottom 3. The openings of the two V-shaped rods face to one side. One end of the first rotating rod 15 opposite to the first rotating shaft is provided with a matching structure 17. The engaging structure 17 is a shaft-like structure extending downward to a height engaging with the blocking projection 263 through the mounting base plate 14 and the drawer base plate 3, and an arc-like path groove 141 is formed in the mounting base plate 14 and the drawer base plate 3 corresponding to the movement locus of the engaging structure 17. The other end of the first rotating rod 15 opposite to the first rotating shaft is provided with a first chute 23, and the first chute 23 is a chute structure extending for a set distance along the extending direction of the rod body at the corresponding position of the first rotating rod 15.
One end of the second rotating rod 22 opposite to the second rotating shaft is provided with a first sliding pin 24 which is in sliding fit with the first sliding groove 23, and the other end is provided with a driving structure 25 for driving the display mechanism to act. The first slide pin 24 is freely slidable in the first slide groove 23, and the sliding fit between the first rotation lever 15 and the second rotation lever 22 is achieved by the sliding fit of the first slide groove 23 and the first slide pin 24. The first rotating rod 15 rotates to drive the second rotating rod 22 to rotate around the second rotating shaft, and the driving structure 25 drives the display mechanism to act in the process of rotating along with the second rotating rod 22.
The cabinet body is provided with a positioning block 26 corresponding to the drawer bottom plate 3, and the positioning block 26 is provided with a protruding structure for blocking the matching structure 17, namely a blocking protrusion 263, namely a traction structure of the transmission mechanism. During the drawer moving direction relative to the cabinet, the blocking protrusion 263 blocks the engaging structure 17, so that the engaging structure 17 is driven by the driving force in the moving direction relative to the drawer, and the first rotating rod 15 is driven to rotate around the first rotating shaft relative to the mounting base plate 14. The first rotating lever 15 drives the second rotating lever 22 to rotate about the second rotation axis.
A first biasing member 21 is also provided between the second rotatable lever 22 and the mounting base plate 14, the first biasing member 21 providing a biasing force tending to urge the engagement structure 17 against the blocking projection 263, so that the engagement structure 17 engages with the blocking projection 263 during withdrawal with the drawer in the drawer moving direction relative to the cabinet.
The display mechanism comprises a rack 20, a gear 18 matched with the rack 20 in structure, a gear shaft 19 linked with the gear 18, a display structure 8 and a display mark 101 fixed on the outer side plate 1 of the drawer. The gear 18 is rotatably installed on the installation vertical plate 11, the gear shaft 19 extends to the outer side of the drawer outer side plate 1 through the gear shaft 19 extending holes formed on the auxiliary vertical plate 9 and the drawer outer side plate 1, and the tail end of the gear shaft is provided with a display structure 8 for indicating position information. The auxiliary vertical plate 9 is provided with a rack 20 sliding groove extending along the direction parallel to the mounting bottom plate 14, and the rack 20 is correspondingly provided with a rack 20 sliding protrusion. The sliding mounting of the rack 20 is achieved by the cooperation of the sliding projection of the rack 20 and the sliding groove of the rack 20. The rack 20 slides relative to the auxiliary riser 9 in a direction parallel to the mounting floor 14 under the drive of the swivelling lever assembly. The rack 20 slides relative to the mounting base plate 14 to drive the gear 18 to rotate, and the rotation of the gear 18 drives the gear shaft 19 to synchronously rotate. The display structure 8 on the gear shaft 19 cooperates with the display mark 101 of the drawer outer panel 1 to display the position of the drawer relative to the cabinet.
The mounting of the gear 18 is not limited to the mounting riser 11, but may be mounted to the auxiliary riser 9, may be mounted to the auxiliary riser 9 and the mounting riser 11, or may be mounted to other mounting structures for which the drawer is provided. Similarly, the rack 20 is not limited to the auxiliary riser 9, but may be mounted to the mounting riser 11, may be mounted to the auxiliary riser 9 and the mounting riser 11, and may be mounted to other mounting structures for which the drawer is provided. Whatever the structure, the operation function is realized.
The side of the rack 20 facing the second rotating rod 22 is provided with an open square groove. The end of the second rotating rod 22 matched with the rack 20 is an arc-shaped bulge, and the arc-shaped bulge is movably matched with the square groove of the opening. The provision of the arcuate projections allows the second rotating lever 22 to be movably provided with an open square groove during the swinging process, thereby driving the rack 20 to slide relative to the mounting riser 11. The arcuate projections are the drive structures 25.
The engagement structure 17 is an input end of the transmission mechanism, which is engaged with the blocking projection 263, and receives a driving force in a moving direction of the relative drawer during the moving of the drawer. The driving structure 25 is the output end of the transmission mechanism. The rotating lever assembly works together to convert the driving force of the blocking projection 263 on the mating structure 17 into a driving force acting on the display mechanism to drive the movement of the display structure 8, and is therefore also called a reversing mechanism.
As another embodiment of the reversing mechanism, the reversing mechanism includes a reversing slide slidably mounted to the drawer in the direction of movement of the drawer. The reversing slide is provided with a mating structure 17 which mates with the blocking projection 263 and a driving structure 25 which drives the movement of the rack 20. The first biasing member is disposed between the slide plate structure and the drawer. The driving structure 25 is a driving sliding chute with a certain extending length, which is formed by a sliding plate structure, and the extending direction of the driving sliding chute is located between the moving direction of the drawer and the moving direction of the rack 20. The rack 20 is provided with a mating pin in sliding engagement with the drive chute.
As another embodiment of the reversing mechanism, the reversing mechanism comprises a rotating rod which rotates relative to a rotating shaft perpendicular to the drawer bottom 3, and the rotating rod is arranged at an included angle relative to the rotating shaft so that two ends are respectively in a matching position with the blocking protrusion 263 and the rack 20.
In this embodiment, the first biasing member 21 acts to subject the mating structure 17 to a biasing force tending to bear against the blocking projection 263, and may be disposed between any of the components of the transmission and the mounted component. Can be a tension spring, a torsion spring, or other parts capable of providing a biasing force.
Obviously, the transmission mechanism and the display mechanism of the three-position display assembly can be mounted on the cabinet, and the blocking projection 263 can be mounted on the drawer, and the working principle is the same as that described above.
Two auxiliary switches 13, namely a first auxiliary switch 13 and a second auxiliary switch 13, which are respectively arranged corresponding to the test position and the connection/electric operation position are arranged on the top surface of the installation top cover 10 along the moving direction of the drawer. The first pivoting lever 15 is provided with a projection structure extending upward, i.e. a trigger structure 16, toward the upper top side. An intermediate acting member 12 is arranged between the corresponding trigger structure 16 and the auxiliary switch 13.
The middle acting piece 12 comprises a spring piece 121 arranged on the outer side of the installation top cover 10, one end of the spring piece 121 is fixedly arranged on the top surface of the installation top cover 10, the free end of the spring piece is provided with an acting rod 122 penetrating the installation top cover 10 and extending towards the triggering structure 16, and the installation top cover 10 is provided with a through hole corresponding to the acting rod 122. The action bars 122 extend through the through holes to a height that mates with the trigger structure 16. When the first rotating rod 15 swings to the set position, the triggering structure 16 abuts against and jacks up the acting rod 122, and the corresponding auxiliary switch 13 is triggered against the elastic force of the elastic piece 121.
When the drawer is pushed to the test position, the trigger structure 16 moves to a position for triggering the first auxiliary switch 13 to trigger the first auxiliary switch 13. When pushed to the connection/electrical operation position, the trigger structure 16 moves to a position to trigger the second auxiliary switch 13.
As another embodiment of the trigger 16, the trigger 16 may be provided to the second rotating lever 22. Of course, the form of the transmission mechanism in the triggering mechanism of the auxiliary switch 13 is not limited to the embodiment described herein, and may be a transmission mechanism in a three-position display assembly in the prior art. When the form of the transmission is changed, the triggering mechanism 16 may be provided on other transmission members of the transmission.
As an alternative embodiment of the triggering mechanism 16, a separate triggering mechanism 16 may be provided for each auxiliary switch 13, the triggering mechanism 16 being provided in a different transmission piece of the transmission mechanism or in a different position on the same transmission piece.
As another embodiment of the auxiliary switch 13, the auxiliary switch 13 may be disposed on an inner side surface of the mounting top cover 10 near the triggering structure 16, and may be directly triggered by the triggering structure 16.
The operation locking mechanism is mounted to the mounting base plate 14, and referring to fig. 15 to 19, includes a locking housing 30 fixedly mounted to the mounting base plate 14, and a push rod 7 and a lock lever 31 slidably mounted to the locking housing 30. Specifically, the lock housing 30 is a rectangular parallelepiped housing structure extending in the drawer moving direction. The push rod 7 is slidably mounted to the lock housing 30 in the drawer moving direction. The lock lever 31 slidably mounts the lock housing 30 in a direction perpendicular to the drawer moving direction.
The push rod 7 and the lock housing 30 are provided with a push rod biasing member 33 that provides a biasing force for the push rod 7 outwardly in the drawer moving direction.
The push rod 7 includes a rod-shaped body extending in the drawer moving direction, and both ends of the rod-shaped body in the extending direction are an outer end 75 and an inner end 74, respectively. The outer end 75 of the push rod 7 extends to the outside of the drawer through the auxiliary vertical plate 9 and the push rod 7 through hole on the drawer outer plate 1, and is connected with the operation button 4. The push rod 7 can be pushed to slide inward with respect to the lock housing 30 by pressing the operation button 4. A push rod biasing member 33 is provided between the inner end 74 of the push rod 7 and the lock housing 30. The push rod biasing member 33 provides a biasing force for the push rod 7 to slide outward.
The rod-shaped body is also provided with a push rod inclined surface 73 whose height decreases from outside to inside in the extending direction. The upper structure of the rod-shaped body is also provided with an upwardly extending electric operating protrusion 72 and a push rod protrusion 71.
The lock lever 31 is provided in a square plate-like structure, and both side surfaces thereof are mounted with a lock lever drive shaft 32 fitted with a push rod inclined surface 73. The operating locking mechanism further includes a lock lever biasing member 34 disposed between the lock housing 30 and the lock lever 31, the lock lever biasing member 34 providing a biasing force to the lock lever drive shaft 32 against the push rod ramp 73.
The push rod 7 drives the lock rod 31 to slide upwards relative to the drawer bottom plate 3 through the cooperation of the push rod inclined surface 73 and the shaft of the lock rod 31 in the process of sliding inwards under the action of the operation button 4.
Under the action of the push rod biasing member 33, the push rod 7 is slid outward to the initial position, and the lock lever 31 is slid downward under the action of the lock lever biasing member 34 and gravity.
The positioning block 26 is provided with a first limiting hole 261 and a second limiting hole 262 along the moving direction of the drawer, respectively. When the drawer moves to the connection/electric operation position, the locking lever 31 is inserted into the first limit hole 261 to fix the drawer at the connection/electric operation position. When the drawer moves to the testing position, the lock lever 31 is inserted into the second limiting hole 262 to fix the drawer in the testing position. The matching of the positioning block 26 and the lock rod 31 realizes the position locking of the drawer.
Referring to fig. 11-14, the operating interlock mechanism includes a drive mechanism mounted to the mounting riser 11 and a first reaction member 28. The first acting member 28 is slidably mounted to the mounting riser 11 in a direction perpendicular to the mounting base plate 14, with the top and bottom ends of the slide being in the unlocked and locked positions, respectively.
The first acting element 28 comprises a plate-shaped body 281, wherein a chute structure is arranged on the plate-shaped body 281, and the first acting element is slidably mounted on a slide column structure fixedly arranged on the mounting vertical plate 11. The lower side of the plate-shaped body 281 is provided with a plate-shaped protrusion extending downward, i.e., a first interlocking protrusion 282. The right side is provided with a plate-shaped protrusion extending toward the right side, i.e., a second interlocking protrusion 283.
When the first acting piece 28 slides downwards to the locking position, the first interlocking protrusion 282 descends and penetrates through holes correspondingly formed in the mounting bottom plate 14 and the drawer bottom plate 3 to be matched with a first locking structure on the cabinet body, so that the drawer and the cabinet body are locked. The first locking structure may be a through hole formed in the cabinet body, or may be a blocking member, and the first locking structure cooperates with the first locking protrusion 282 to limit the drawer. The second interlock projection 283 descends to a position of engagement with the push pedal projection, preventing the push rod projection 71 from sliding inward by the operation button 4, thereby effecting locking of the operation locking mechanism. The push rod protrusion 71 is a second locking structure that is engaged with the second interlocking protrusion 283, and the second locking structure may be an open upward groove structure provided on the push rod 7.
When the first acting piece 28 slides upwards to the unlocking position, the first interlocking protrusion 282 and the second interlocking protrusion 283 move upwards, and are respectively separated from the matching positions of the first locking structure and the second locking structure, so that the unlocking of the cabinet body and the drawer is realized, and the unlocking of the first acting piece 28 and the operation locking structure is realized.
The first acting portion of the first interlocking protrusion 282 and the first locking structure, and the second acting portion of the second interlocking protrusion 283 and the second locking structure may be disposed on different sides of the corresponding component according to the sliding direction of the first acting member 28, and may be located on the same side of the sliding direction of the first acting member 28 near the unlocking position.
The driving means comprises a rotating cam 27 and a driving bias 29. The mounting riser 11 is provided with a rotary cam mounting hole 111. The rotary cam 27 is rotatably mounted to the mounting riser 11, and the eccentric end is provided with an eccentric protrusion 271 acting on the top end of the first acting member 28. The rotary cam 27 is connected with the rotary handle 6 on the drawer outer panel 1 through a connecting shaft. A drive bias 29 is provided between the mounting riser 11 and the first acting member 28 to provide a biasing force for the first acting member 28 to move to the unlocked position. The rotating cam 27 is rotated by the rotating handle 6, and the eccentric protrusion 271 acts on the tip of the first acting member 28, pushing the first acting member 28 to slide downward against the biasing force of the driving biasing member 29. The first acting member 28 is provided at a top end side thereof with a limit projection extending upward to limit a movement range of the eccentric projection 271.
As another embodiment of the present invention, the drawer is a hand-operated drawer, please refer to fig. 19-23, specifically including a rotary pushing mechanism 35 mounted on the mounting base plate 14. The rotary pushing mechanism 35 comprises an action mechanism, the action mechanism comprises a transmission shaft 351, a connector connected with a power device is arranged at the end 75 of the outer side of the transmission shaft 351, and a hand piece is detachably connected with the connector.
The operating interlock mechanism further comprises a second reaction member 36. The second reaction member 36 is slidably mounted to the mounting riser 11 in a direction parallel to the mounting floor 14. A linkage is provided between the first acting element 28 and the second acting element 36. The end of the second acting element 36 adjacent to the drive shaft 351 is a shielding portion 362. The first acting element 28 moves to the locking position to drive the second acting element 36 to move, and the shielding part 362 at least partially shields the transmission shaft 351 for connecting with the power device connector so as to prevent the transmission shaft 351 from being matched with the power device; when the first acting member 28 is slid to the unlocked position, the blocking portion 362 moves away from the connector with the second acting member 36.
The linkage mechanism comprises a driving chute 361 which is arranged on the second acting piece 36 and has a certain included angle with the movement direction of the first acting piece 28 and the second acting piece 36, and a driving shaft which is fixed on the first acting piece 28 and passes through a through groove 112 on the mounting vertical plate 11 to be matched with the driving chute 361.
As another embodiment of the shielding portion 362, the shielding portion 362 is a portion of the first acting element 28, is a plate-like projection extending in the lateral direction, and shields or avoids the joint in the sliding direction of the first acting element 28.
In this embodiment, the push rod biasing member 33, the lock rod biasing member 34 and the driving biasing member 29 may be any spring structure, or may be any other structure capable of providing a suitable biasing force.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.
Claims (9)
1. An auxiliary switch triggering mechanism for a draw-out power distribution cabinet, comprising:
a display mechanism having a display mark (101) fixed on the drawer and a display structure (8) for displaying the position of the drawer relative to the cabinet body along with the movement of the drawer;
the transmission mechanism is arranged on the drawer, and the input end of the transmission mechanism is provided with a matching structure (17) which is matched with the touch of the traction structure on the cabinet body along with the movement of the drawer, and the transmission mechanism drives the display structure (8) to move to the corresponding position of the display mark (101) along with the movement position of the drawer relative to the cabinet body;
the triggering structure (16) is arranged on a part corresponding to the auxiliary switch (13) in the transmission mechanism, and triggers the corresponding auxiliary switch (13) at a corresponding functional position;
the transmission mechanism is provided with a rotating rod assembly capable of rotating relative to a rotating shaft perpendicular to the drawer bottom plate (3), and the triggering structure (16) is arranged on one rod piece in the rotating rod assembly;
the rotating rod assembly comprises a first rotating rod (15) and a second rotating rod (22) which are rotatably arranged around a shaft perpendicular to the drawer bottom plate (3), one end of the first rotating rod (15) relative to a rotating shaft of the first rotating rod is provided with a matching structure (17) matched with the traction structure, and the other end of the first rotating rod is in sliding fit with one end of the second rotating rod (22); the other end of the second rotating rod (22) is provided with a driving structure (25) for driving the display structure (8) to act; the triggering structure (16) is arranged on the first rotating rod (15);
the drawer also comprises an installation bottom plate (14) arranged corresponding to the drawer bottom plate (3) and an installation vertical plate (11) which is arranged corresponding to the drawer outer side plate (1) and is vertically arranged on the installation bottom plate (14);
the display mechanism comprises a rack (20) and a gear (18) matched with the rack (20); the gear (18) is rotatably arranged on the mounting vertical plate (11), and a gear shaft (19) linked with the gear (18) is provided with the display structure (8) for indicating position information; the rack (20) slides relative to the mounting riser (11) in a direction parallel to the mounting floor (14) driven by the transmission mechanism.
2. The auxiliary switch triggering mechanism as recited in claim 1 wherein: the triggering structure (16) is a protruding structure protruding from a transmission member of the transmission mechanism towards the auxiliary switch (13).
3. The auxiliary switch triggering mechanism as recited in claim 1 wherein: the sliding fit comprises a sliding groove structure arranged on one side of the first rotating rod (15) and the second rotating rod (22), and a sliding pin arranged on the other side and sliding in the sliding groove structure.
4. An auxiliary switch triggering mechanism as recited in any one of claims 1-3, wherein: the number of the auxiliary switches (13) is two, and the corresponding functional positions are respectively a test position and a connection/electric operation position; the two auxiliary switches (13) are arranged on the drawer at corresponding test positions and connection/electric operation positions along the moving path of the trigger structure (16); the drive mechanism triggers the corresponding auxiliary switch (13) when the drawer moves to the test position and the connection/electric operation position.
5. An auxiliary switch triggering mechanism as recited in any one of claims 1-3, wherein: the automatic control device is characterized by further comprising a mounting bottom plate (14) and a mounting top cover (10), wherein the mounting bottom plate (14) is arranged corresponding to the drawer bottom plate (3), the mounting top cover (10) is buckled on the mounting bottom plate (14), the transmission mechanism is mounted on the mounting bottom plate (14) and is located between the mounting top cover (10) and the mounting bottom plate (14), and the auxiliary switch (13) is mounted on the mounting top cover (10).
6. The auxiliary switch triggering mechanism as recited in claim 5, wherein: the matching structure (17) is a shaft-shaped structure penetrating through the mounting bottom plate (14) and extending to a matching height with the traction structure; the mounting base plate (14) is correspondingly provided with an arc-shaped extending path groove (141).
7. The auxiliary switch triggering mechanism as recited in claim 5, wherein: the auxiliary switch (13) is arranged on the outer side of the installation top cover (10) relative to the trigger structure (16), and an intermediate acting piece (12) is arranged between the trigger structure (16) and the auxiliary switch (13).
8. The auxiliary switch triggering mechanism as recited in claim 7 wherein: the middle acting piece (12) comprises an elastic piece (121) arranged on the outer side of the installation top cover (10), one end of the elastic piece (121) is fixedly installed on the installation top cover (10), an acting rod (122) penetrating through the installation top cover (10) and extending towards the triggering structure (16) is arranged at the free end of the elastic piece, and an auxiliary switch (13) is arranged above the other side of the acting rod (122).
9. The utility model provides a pull-out type switch board which characterized in that: comprising an auxiliary switch triggering mechanism as claimed in any one of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810569060.3A CN108631203B (en) | 2018-06-05 | 2018-06-05 | Draw-out type power distribution cabinet and auxiliary switch triggering mechanism on draw-out type power distribution cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810569060.3A CN108631203B (en) | 2018-06-05 | 2018-06-05 | Draw-out type power distribution cabinet and auxiliary switch triggering mechanism on draw-out type power distribution cabinet |
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| Publication Number | Publication Date |
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| CN108631203A CN108631203A (en) | 2018-10-09 |
| CN108631203B true CN108631203B (en) | 2023-05-30 |
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| CN201810569060.3A Active CN108631203B (en) | 2018-06-05 | 2018-06-05 | Draw-out type power distribution cabinet and auxiliary switch triggering mechanism on draw-out type power distribution cabinet |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112216540B (en) * | 2020-09-25 | 2023-05-09 | 国网江苏省电力有限公司南通市海门区供电分公司 | Manual connecting rod touch switch |
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| DE202017001712U1 (en) * | 2017-03-30 | 2017-08-16 | Tamer Özbas | Mirror cabinet with electrically opening drawers |
| CN208299312U (en) * | 2018-06-05 | 2018-12-28 | 温州隆森电气有限公司 | A kind of drawer type power distributing cabinet and auxiliary switch trigger mechanism thereon |
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| CN101005199A (en) * | 2006-12-25 | 2007-07-25 | 郭树海 | Novel low voltage drawer operation mechanism |
| CN104300410A (en) * | 2014-09-27 | 2015-01-21 | 浙江正泰电器股份有限公司 | Withdrawable circuit breaker with position indication function |
| CN104752981A (en) * | 2015-04-03 | 2015-07-01 | 山东春旭电气有限公司 | Pushing interlocking mechanism for drawer unit of power distribution cabinet |
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|---|---|
| CN108631203A (en) | 2018-10-09 |
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