CN216288162U

CN216288162U - Mechanical locking device for opening and closing of strut type switch

Info

Publication number: CN216288162U
Application number: CN202122934634.2U
Authority: CN
Inventors: 秦忠宇; 宋琳; 金海峰; 程银龙
Original assignee: Shaanxi Senbao Power Switch Co ltd
Current assignee: Shaanxi Senbao Power Switch Co ltd
Priority date: 2021-11-26
Filing date: 2021-11-26
Publication date: 2022-04-12
Anticipated expiration: 2031-11-26

Abstract

The utility model discloses a mechanical locking device for opening and closing a column type switch, and relates to the field of switch circuit safety equipment. The pull rod is rotatably connected with a switch shell and penetrates through the switch shell, a baffle is installed at one end, extending into the switch shell, of the pull rod, a pair of first and second baffle rods perpendicular to the axis of the pull rod are installed on the baffle, the end parts of the first and second baffle rods are respectively in abutting contact with a brake separating plate and a brake closing plate in the switch shell, the length of the second baffle rod is greater than that of the first baffle rod, and the pull rod is in transmission connection with the switch shell through a ring sleeve with a lock; the purpose of mechanically locking and opening the switch-on/off of the switch-off switch is achieved.

Description

Mechanical locking device for opening and closing of strut type switch

Technical Field

The utility model relates to the field of switch circuit safety equipment, in particular to a strut type switch opening and closing mechanical locking device.

Background

The pole-mounted vacuum switch is widely applied to 10kV overhead lines in cities and villages to realize switching and protection of lines and loads. The special working condition of the overhead line causes that the line and the equipment often have faults, and along with the continuous development of national economy and the improvement of the power utilization quality requirement of users, the faults are eliminated more and more by adopting a live working mode.

In order to ensure the safety of live working, the power department operation instruction clearly requires that the switching equipment related to the operation content is kept in the pre-operation position state, and strictly forbids the switching-on and switching-off operations.

In order to ensure that the switch cannot be switched on or switched off, the scheme adopted at present is to withdraw a pressure plate in a switching-on and switching-off control loop of a power distribution terminal (FTU) corresponding to the switch, so that an opening point of the switching-on and switching-off control loop occurs artificially, and the switch misoperation caused by error instruction, operation or FTU protection starting is avoided.

However, at present, the problem of the disconnection of the pressing plate in the FTU control circuit and the disconnection of the closing control circuit is solved only by the error disconnection and the error closing caused by electric operation, and the misoperation caused by manual operation or interference is not locked.

At the moment, the manual operation of an operator or the mistaken touch of the opening and closing operating rod in the operation and the electromagnetic interference still cause the misoperation of the switch, thereby causing operation accidents and even endangering the personal safety of the operator.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a strut type mechanical locking device for opening and closing a switch so as to achieve the purpose of mechanically locking and opening the switch.

In order to achieve the purpose, the utility model adopts the following technical means:

the utility model provides a strut type switch divides, combined floodgate mechanical locking device, includes to rotate with the switch casing and is connected and pass the pull rod of switch casing, the pull rod stretches into the baffle is installed to the one end of switch casing, install on the baffle a pair of with pull rod axis vertically first shelves pole and second shelves pole, first shelves pole and the tip of second shelves pole respectively with separating brake tripping plate and combined floodgate tripping plate in the switch casing support and keep out the contact, just the length of second shelves pole is greater than the length of first shelves pole, the pull rod with the switch casing is connected through the ring cover transmission of taking the lock.

Preferably, the closing tripping plate comprises a closing base ring, a vertical first plate and a horizontal second plate are arranged on the outer wall of the closing base ring, the first plate and the second plate are perpendicular to the axis of the closing base ring, a closing moving iron core of the closing tripping device faces the first plate, and the end of the second blocking rod is in contact with the top surface of the second plate in a blocking manner.

Further, the separating brake tripping plate comprises a separating brake base ring, a vertical separating brake plate is installed on the outer wall of the separating brake base ring, a separating brake moving iron core of the separating brake tripping device faces towards the separating brake plate, and the end portion of the first stop lever is back to the separating brake moving iron core and is abutted to contact with one surface of the separating brake moving iron core.

Furthermore, the ring sleeve comprises a copper sleeve seat arranged on the surface of the switch shell, a copper sleeve is arranged in the copper sleeve seat, the pull rod rotates to penetrate through the copper sleeve, and a locking limiting device is arranged between the copper sleeve and the pull rod.

Furthermore, the locking and limiting device comprises a clamping groove arranged on the copper sleeve, the clamping groove extends along the axis direction of the copper sleeve and penetrates through the end part of the copper sleeve, and a clamping pin vertical to the axis of the pulling rod is arranged on the outer wall of the pulling rod.

Furthermore, the clamping grooves are four and two adjacent clamping grooves are arranged at equal intervals, and the number and the positions of the clamping pins correspond to those of the clamping grooves.

Furthermore, the clamping groove and the clamping pin are arranged outside the switch shell, one side of the pull rod extending into the switch shell is sleeved with a compression spring, and two ends of the compression spring are respectively connected with the baffle and the inner wall of the switch shell.

In the using process, the utility model has the following beneficial effects:

when the switch is in an opening and stored energy state, and in a normal state, after the closing and tripping device is electrified, a closing movable iron core on the closing and tripping device impacts a closing and tripping plate, so that a link mechanism in the switch, which is in an opening state, is unlocked, and closing is completed. When the switch is in a closing state, and in a normal state, after the switching-off detacher is electrified, the switching-off movable iron core on the switching-off detacher impacts the switching-off detaching plate, so that the connecting rod structure in the switch which is kept in a closing state is unlocked, and the switch is enabled to complete the switching-off action. In the process of switching on and off, the pull rod needs to be rotated, the ends of the first gear rod and the second gear rod connected to the baffle at the end of the pull rod unlock the switching-off tripping plate and the switching-on tripping plate, specifically, when the ends of the first gear rod and the second gear rod are respectively contacted with the switching-off tripping plate and the switching-on tripping plate, the bottom ends of the first gear rod and the second gear rod are used for mechanically limiting the switching-off tripping plate and the switching-on tripping plate, the switching-off tripping plate and the switching-on tripping plate can not rotate, and further switching on or switching off can not be performed. When the switching-off and switching-on actions are needed, the pull rod is rotated to enable the first gear rod and the second gear rod to rotate, and then the switching-off tripping plate is in contact locking with the switching-on tripping plate, so that switching-on and switching-off operations can be carried out. The mechanical device is adopted to realize the simultaneous locking of the opening and closing of the strut type vacuum switch in live working, the defect that only the electric locking is realized in the prior art is overcome, the electric operation can be locked, and the reliable locking can be realized for manual misoperation of an operator or misoperation under the condition that the opening and closing operating rod is touched by mistake in the working process and the electromagnetic interference occurs, so that the safety of equipment and personnel in the live working process is ensured.

Drawings

FIG. 1 is a schematic view of the structure of the present invention.

Fig. 2 is a schematic top view of the structure of fig. 1.

FIG. 3 is a schematic view of a locked state structure according to the present invention.

Fig. 4 is a structural schematic diagram of the unlocking state of the present invention.

Fig. 5 is a schematic view of the installation structure of the tie rod of the present invention.

Fig. 6 is a schematic structural view of the copper bush of the present invention.

The automatic switching device comprises a switch shell 1, a pull rod 2, a baffle 3, a first gear rod 5, a second gear rod 6, a switching-off tripping plate 7, a switching-off base ring 71, a switching-off plate 72, a switching-on tripping plate 8, a switching-on base ring 81, a first plate 82, a second plate 83, a switching-on tripping device 9, a switching-on movable iron core 10, a switching-off tripping device 11, a switching-off movable iron core 12, a copper sleeve seat 13, a copper sleeve 14, a clamping groove 15, a clamping pin 16 and a compression spring 17.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that are conventionally placed when the products of the present invention are used, or orientations or positional relationships that are conventionally understood by those skilled in the art, and are used only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element that is referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 4, a strut-type mechanical locking device for opening and closing of a switch includes a pull rod 2 rotatably connected to a switch housing 1 and penetrating through the switch housing 1, a baffle 3 is installed at one end of the pull rod 2 extending into the switch housing 1, a pair of a first shift lever 5 and a second shift lever 6 perpendicular to an axis of the pull rod 2 are installed on the baffle 3, ends of the first shift lever 5 and the second shift lever 6 are respectively in abutting contact with an opening tripping plate 7 and a closing tripping plate 8 in the switch housing 1, a length of the second shift lever 6 is greater than a length of the first shift lever 5, and the pull rod 2 is in transmission connection with the switch housing 1 through a ring sleeve with a lock.

Therefore, when the switch is in an opening and stored energy state, and in a normal state, after the closing and tripping device is electrified, the closing movable iron core on the closing and tripping device impacts the closing and tripping plate 8, so that the link mechanism in the switch, which is in the opening state, is unlocked, and closing is completed. When the switch is in a closing state, and in a normal state, after the switching-off detacher is electrified, the switching-off movable iron core on the switching-off detacher impacts the switching-off detaching plate 7, so that the connecting rod structure in the switch which is kept in a closing state is unlocked, and the switch is enabled to complete the switching-off action. In the process of switching on and off, the pull rod 2 needs to be rotated, the end parts of the first gear rod 5 and the second gear rod 6 connected to the baffle 3 at the end part of the pull rod 2 unlock the switching-off tripping plate 7 and the switching-on tripping plate 8, specifically, when the end parts of the first gear rod 5 and the second gear rod 6 are respectively contacted with the switching-off tripping plate 7 and the switching-on tripping plate 8, the bottom ends of the first gear rod 5 and the second gear rod 6 are used for carrying out mechanical limitation on the switching-off tripping plate 7 and the switching-on tripping plate 8, the switching-off tripping plate 7 and the switching-on tripping plate 8 can not rotate, and switching-on or switching-off can not be carried out. When the action of switching off and switching on is needed, the pull rod 2 is rotated to enable the first gear rod 5 and the second gear rod 6 to rotate, and then the switching-off tripping plate 7 is in contact locking with the switching-on tripping plate 8, so that switching-on and switching-off operation can be carried out. The mechanical device is adopted to realize the simultaneous locking of the opening and closing of the strut type vacuum switch in live working, the defect that only the electric locking is realized in the prior art is overcome, the electric operation can be locked, and the reliable locking can be realized for manual misoperation of an operator or misoperation under the condition that the opening and closing operating rod is touched by mistake in the working process and the electromagnetic interference occurs, so that the safety of equipment and personnel in the live working process is ensured.

The closing tripping plate 8 comprises a closing base ring 81, a vertical first plate 82 and a horizontal second plate 83 are arranged on the outer wall of the closing base ring 81, the first plate 82 and the second plate 83 are perpendicular to the axis of the closing base ring 81, a closing movable iron core 10 of the closing tripping device 9 faces the first plate 82, and the end of the second gear lever 6 is in contact with the top surface of the second plate 83 in a blocking mode.

Simultaneously, separating brake dropout board 7 includes separating brake base ring 71, vertical separating brake plate 72 is installed to separating brake base ring 71's outer wall, and separating brake movable iron core 12 orientation of separating brake decoupler 11 divides flashboard 72, the tip of first shelves pole 5 with divide flashboard 72 dorsad the contact is kept out to the one side of separating brake movable iron core 12.

Further, please refer to fig. 5 and 6, the ring sleeve includes a copper sleeve seat 13 installed on the surface of the switch housing 1, a copper sleeve 14 is installed in the copper sleeve seat 13, the pull rod 2 rotatably penetrates through the copper sleeve 14, and a locking and limiting device is arranged between the copper sleeve 14 and the pull rod 2.

Meanwhile, the locking and limiting device comprises a clamping groove 15 arranged on the copper sleeve 14, the clamping groove 15 extends along the axial direction of the copper sleeve 14 and penetrates through the end part of the copper sleeve 14, and a clamping pin 16 vertical to the axial direction of the outer wall of the pull rod 2 is installed on the outer wall of the pull rod.

And, there are four card slots 15, and two adjacent card slots 15 equidistance sets up, the quantity and the position of bayonet 16 with the quantity and the position of card slot 15 correspond.

Meanwhile, the clamping groove 15 and the clamping pin 16 are arranged outside the switch shell 1, the pull rod 2 extends into one side of the switch shell 1 and is sleeved with a compression spring 17, and two ends of the compression spring 17 are respectively connected with the baffle 3 and the inner wall of the switch shell 1.

Thus, the locking state of the pull rod 2 is achieved by the matching of the clamping pin 16 and the clamping groove 15, namely, when the clamping pin 16 is matched with the clamping groove 15, the pull rod 2 cannot rotate. When pull rod 2 is rotated to needs, outside pulling pull rod 2 lets bayonet lock 16 deviate from in draw-in groove 15, thereby can rotate pull rod 2 promptly and adjust the position of first baffle 3 and second baffle 3, when adjusting the completion back, loosens pull rod 2, and pull rod 2 moves towards switch housing 1 inside under compression spring 17's effect to let bayonet lock 16 get into draw-in groove 15 once more, let pull rod 2 be in the unable pivoted state of lock once more.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the utility model can be made, and equivalents and modifications of some features of the utility model can be made without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a mechanical locking device that a pillar type switch divides, closes a floodgate which characterized in that: include to rotate with switch housing (1) and be connected and pass pull rod (2) of switch housing (1), pull rod (2) stretch into baffle (3) are installed to the one end of switch housing (1), install on baffle (3) a pair of with pull rod (2) axis vertically first shelves pole (5) and second shelves pole (6), first shelves pole (5) and the tip of second shelves pole (6) respectively with separating brake dropout board (7) and closing a floodgate dropout board (8) in switch housing (1) support and block the contact, just the length of second shelves pole (6) is greater than the length of first shelves pole (5), pull rod (2) with switch housing (1) is connected through the ring cover transmission of taking the lock.

2. The mechanical locking device for opening and closing a column switch according to claim 1, wherein: the closing tripping plate (8) comprises a closing base ring (81), the outer wall of the closing base ring (81) is provided with a vertical first plate (82) and a horizontal second plate (83), the first plate (82) and the second plate (83) are perpendicular to the axis of the closing base ring (81), a closing movable iron core (10) of a closing tripping device (9) faces towards the first plate (82), and the end part of the second stop lever (6) is in abutting contact with the top surface of the second plate (83).

3. The mechanical locking device for opening and closing a column switch according to claim 1, wherein: separating brake tripping plate (7) is including separating brake base ring (71), vertical branch flashboard (72) are installed to the outer wall of separating brake base ring (71), and the separating brake movable iron core (12) orientation of separating brake unhooking device (11) divide flashboard (72), the tip of first shelves pole (5) with divide flashboard (72) dorsad the one side of separating brake movable iron core (12) is kept out of contact.

4. The mechanical locking device for opening and closing a column switch according to claim 1, wherein: the ring cover is including installing copper sheathing seat (13) on switch housing (1) surface, install copper sheathing (14) in copper sheathing seat (13), pull rod (2) rotate and pass copper sheathing (14), just copper sheathing (14) with be provided with locking stop device between pull rod (2).

5. The mechanical locking device for opening and closing a column switch according to claim 4, wherein: the locking and limiting device comprises a clamping groove (15) formed in the copper sleeve (14), the clamping groove (15) extends along the axis direction of the copper sleeve (14) and penetrates through the end portion of the copper sleeve (14), and a clamping pin (16) perpendicular to the axis is installed on the outer wall of the pull rod (2).

6. The mechanical locking device for opening and closing a column switch according to claim 5, wherein: the clamping grooves (15) are four and two adjacent clamping grooves (15) are arranged at equal intervals, and the quantity and the position of the clamping pins (16) correspond to the quantity and the position of the clamping grooves (15).

7. The mechanical locking device for opening and closing a column switch according to claim 5, wherein: draw-in groove (15) with bayonet lock (16) set up the outside of switch casing (1), pull rod (2) stretch into one side cover of switch casing (1) is equipped with compression spring (17), the both ends of compression spring (17) respectively with baffle (3) and the inner wall of switch casing (1) is connected.