CN217444234U - Handle assembly of automatic transfer switch device - Google Patents

Abstract

A handle assembly of an automatic transfer switching device, characterized in that: handle assembly (3) include handle box (3a), handle box (3a) are fixed to be adorned on support (2), and handle (3b) dress can come back and forth in the handle holding chamber (3a01) on handle box (3a), it can be right that handle holding chamber (3a01) bottom is provided with handle locking unblock piece (3c) handle (3b) lock or unblock under corresponding mode of operation. Whole device simple structure has improved the reliability that the position state realized, and manual operation needs to put back the handle after accomplishing simultaneously, just can operate, has prevented that the handle from losing.

Description

Handle assembly of automatic transfer switch device

Technical Field

The utility model belongs to the technical field of low-voltage apparatus, specifically say so and relate to an automatic change-over switch device's handle components.

Background

Along with the development of society, the requirements of people on a power grid and the power grid in the power transmission and distribution process are gradually improved, and in some important power distribution occasions, a power supply system is required to ensure the continuity, so that the power utilization safety and the production life are not interrupted; the automatic change-over switch is provided with two or more groups of mutually independent contact systems, and can respectively control the connection/disconnection of a main power supply and a standby power supply which are connected with the automatic change-over switch under the action of the controller, so that the power transmission and distribution line is changed between the main power supply and the standby power supply; automatic transfer switches are therefore widely used in this field.

The existing automatic change-over switch is generally provided with a switching device between an automatic position, a manual position and a padlock position, an operator only needs to operate an indicating member arranged on a panel to carry out operation under a corresponding mode, when the indicating member is displayed at the automatic position, the controller controls switching-on and switching-off operation of the switch, the operator cannot carry out switching-on and switching-off operation of the switch through tools such as a handle and the like, and meanwhile, a padlock plate cannot be pulled out to carry out the padlock, when the indicating member is displayed at the manual position, the controller needs to quit control, the operator can insert the tools such as the handle and the like into an operation hole of an operating mechanism to carry out operation, the padlock plate cannot be pulled out to carry out the padlock, when the indicating member is displayed at the padlock position, the controller needs to quit control, and simultaneously, the operator cannot carry out switching-on and switching-off operation of the switch through the tools such as the handle and the like, the padlock plate can be pulled out of the padlock. In some operation scenes, if a fault occurs, when maintenance is needed, in order to ensure the safety of operators, the padlock plate can be pulled out for padlock only when the padlock plate is in a double-division position. However, the above-described conventional structure has the following drawbacks: 1) The operation button on the panel is small, but the operation force value is large, and large operation force is needed; 2) the hand-operated handle is generally placed on the side surface of the switch or separated from the switch, so that the phenomenon that the handle cannot be found or is missed when leaving a factory is easy to occur during field operation; 3) the three positions of the automatic padlock, the manual padlock and the padlock are not related, so that the operation of another state is easy to be carried out in one position, and safety accidents are caused.

Chinese patent 201710833952.5 discloses a switching device for a switch, comprising: a handle including a first slot; a mode button operable to change an operation mode of the switch, the mode button including a second slot; a slider connected with the mode button and movable in a first direction in association with movement of the mode button, the slider including a first block; a lever operable to rotatably open and including a pin, wherein the first block is received in the first slot to retain the handle when the mode button is disposed in the service position, and the pin is operable to pass through the second slot to prevent movement of the mode button in response to the lever being rotatably opened. It is achieved that both electrical and manual operation is disabled by the locking mechanism when the switch is operated in the service mode, also referred to as padlock mode. However, the technical scheme provided by the patent mainly utilizes an electric system to realize three position states of automatic, manual and padlock of the automatic transfer switch device, and the padlock can be used at any position, so that the reliability is low.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an aim at exactly to the defect that above-mentioned current automatic transfer switching device exists, provide an automatic transfer switching device's handle components, reduced this switching device setting operating button's operating force on the panel, whole device simple structure has improved the reliability that position state realized, need put back the handle after manual operation accomplishes simultaneously, could operate, has prevented that the handle from losing.

Technical scheme

In order to achieve the technical purpose, the utility model provides an automatic change-over switch device's handle components, its characterized in that: the handle assembly comprises a handle box, the handle box is fixedly arranged on the support, the handle is arranged in a handle accommodating cavity in the handle box and can move back and forth, a handle locking and unlocking piece is arranged at the bottom of the handle accommodating cavity and can lock or unlock the handle in a corresponding operation mode, the upper end of the handle is linked with the operation mode control module, and the operation mode control module can lock or unlock the handle in the corresponding operation mode.

Furthermore, a connecting bulge is arranged on the handle box, a connecting groove matched with the connecting bulge is arranged on the control box, and the connecting bulge is arranged in the connecting groove to enable the handle box and the control box to be L-shaped or T-shaped.

Furthermore, a handle locking clamping groove corresponding to a handle locking hole in the shifting block is formed in the upper end of the handle, and the shifting block can be locked or unlocked under a corresponding operation mode through the hole edge of the handle locking hole in the shifting block sliding groove in the control box in the process of sliding back and forth.

Further, handle locking piece of deblocking is including the installation casing, pawl reset spring, spacing driving lever and pawl, be provided with mounting groove on the installation casing, the pawl is arranged in can the up-and-down motion in the mounting groove, set up the guide rail slotted hole on the installation casing, pawl is connected to spacing driving lever one end, and the other end can by with the guide rail slotted hole is corresponding guide rail slotted hole restriction stroke position realizes thereby the pawl is in the injecing of up-and-down motion position in the mounting groove, pawl reset spring one end dress is in the mounting groove, the other end supports the pawl does the pawl provides the restoring force.

Furthermore, an elastic claw is extended out of the pawl, a handle limiting clamping groove corresponding to the elastic claw is formed in the lower end of the handle, the handle can be linked with the pawl to move in the mounting groove in the vertical movement process in the handle containing cavity, and the elastic claw can contract into the handle limiting clamping groove or expand to withdraw from the handle limiting clamping groove in the vertical movement process in the mounting groove, so that the handle can be locked or unlocked.

Further, the mounting shell is fixedly mounted in a handle locking and unlocking piece shell mounting groove at the bottom of the handle accommodating cavity in the handle box.

Advantageous effects

The utility model provides a pair of automatic change-over switch device, through the redesign to automatic change-over switch device structure, for current automatic change-over switch device, have the advantage of following several aspects:

(1) the modular design is simple and convenient to install, and the flexible configuration can be realized;

(2) the same part is used for realizing different functions, so that the number of parts is reduced, and the cost is saved;

(3) the operating force of the operating button provided on the panel of the switch device is reduced.

Drawings

Fig. 1 is a schematic view of the assembly of a switchgear according to an embodiment of the present invention;

fig. 2 is a schematic view of a hidden door structure installation structure in an embodiment of the present invention;

FIG. 3 is a schematic view of the mask structure in the embodiment of the present invention;

fig. 4 is a schematic structural diagram of a hidden door mechanism in the embodiment of the present invention;

fig. 5 is a schematic view of a handle assembly, an operation mode control module, and an operation mode locking module according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of an operation mode control module according to an embodiment of the present invention;

FIG. 7 is a schematic structural view of a handle assembly according to an embodiment of the present invention;

FIG. 8a is a schematic structural view of a handle case according to an embodiment of the present invention;

FIG. 8b is a schematic structural diagram of a control box in an embodiment of the present invention;

FIG. 9a is a schematic view of a first structure of a shifting block in the embodiment of the present invention;

FIG. 9b is a schematic diagram of a second structure of the shifting block in the embodiment of the present invention;

FIG. 10 is a schematic view of a structure of a pull cover of a padlock plate according to an embodiment of the present invention;

FIG. 11 is a schematic diagram of a padlock plate structure according to an embodiment of the present invention;

FIG. 12 is a schematic view of a cam structure according to an embodiment of the present invention;

FIG. 13 is a schematic view of the structure of the rocker in the embodiment of the present invention;

FIG. 14 is a schematic view of the handle structure in the embodiment of the present invention;

fig. 15a is an exploded view of a handle lock release in accordance with an embodiment of the present invention;

FIG. 15b is a schematic view of an embodiment of the present invention showing the handle lock release member in a retracted state;

fig. 15c is a schematic view of an embodiment of the present invention with the handle lock release member in an expanded state;

fig. 16a is a schematic view of an embodiment of the present invention showing the handle assembly and the operation mode control module in an automatic state;

FIG. 16b is a schematic view of the handle assembly and the operation mode control module in an automatic state according to the embodiment of the present invention;

fig. 16c is a schematic view of the inner side of the operation mode control module in the automatic state according to the embodiment of the present invention;

fig. 17a is a schematic view of the handle assembly and the operation mode control module in a manual state according to the embodiment of the present invention;

fig. 17b is a schematic view of the handle assembly and the operation mode control module in a manual state according to the embodiment of the present invention;

fig. 18a is a first schematic diagram illustrating the operation mode control module and the handle assembly in a padlock state according to an embodiment of the present invention;

fig. 18b is a schematic view of the handle assembly and the operation mode control module in a padlock state according to the embodiment of the present invention;

FIG. 19 is a schematic view of the embodiment of the present invention in a double-split position;

fig. 20 is a schematic diagram of the embodiment of the present invention in a power-on state.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, 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.

In the description of the present invention, it should be noted that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, and may be, for example, 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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The present invention will be described in further detail below with reference to specific embodiments and with reference to the attached drawings.

Examples

As shown in fig. 1 and 5, an automatic transfer switch device includes a face mask 1 and a support 2, the face mask 1 and the support 2 are assembled together, a manual operation opening area 1a is provided on the face mask 1, a handle assembly 3 and an operation mode control module 4 are provided on the support 2, the handle assembly 3 is linked with the operation mode control module 4, when the operation mode control module 4 is in different operation states, the operation mode control module 4 can correspondingly lock or unlock the handle assembly 3, a hidden door mechanism 5 is provided on the support 2 corresponding to the manual operation opening area 1a, when the handle assembly 3 is in a locking or unlocking state, the hidden door mechanism 5 can correspondingly close or open the manual operation opening area 1a, the operation mode control module 4 is connected with an operation mode locking module 6, the operating mode locking module 6 enables the operating mode control module 4 to implement a padlock only when the automatic transfer switch is in the double-split position. In this embodiment, the mask 1 and the frame 2 are assembled together to form a frame-like structure, and the handle assembly 3, the operation mode control module 4, the hidden door mechanism 5 and the operation mode locking module 6 are located inside the frame-like structure.

For a better understanding of the structure and operation of the automatic transfer switch, the following is a more detailed description of the various components taken in conjunction with the accompanying drawings:

as shown in fig. 3, the mask 1 is provided with a handle receiving hole 1b, a dial block receiving hole 1c and a padlock receiving hole 1d, the handle 3b is disposed in the handle receiving hole 1b and can move back and forth, a toggle part 4b01 of the dial block 4b is disposed in the dial block receiving hole 1c and can toggle back and forth, a padlock plate pulling cover 4e is disposed in the padlock receiving hole 1d and can pull out the padlock plate 4d from the padlock receiving hole 1d, and in this embodiment, the toggle part 4b01 is convex.

The hidden door mechanism 5 comprises a hidden door 5a shown in fig. 4, as shown in fig. 2, the hidden door 5a is rotatably mounted inside the face mask 1 so as to correspondingly close or open the manual operation opening area 1a, a bent-foot protrusion 5a01 is arranged on the hidden door 5a, the handle assembly 3 can drive the hidden door 5a to rotate under a corresponding operation mode through the bent-foot protrusion 5a01, a hidden door return spring 5b connected with the hidden door 5a can enable the hidden door 5a to rotate and return, a baffle 5a02 is arranged on the hidden door 5a, and the baffle 5a02 and the shifting block 4b are linked to enable the shifting block 4b to be locked under the corresponding operation mode. The hidden door return spring 5b has one end fitted in a hidden door return spring mounting hole 5a03 on the back surface of the hidden door 5a and the other end fitted in a hidden door return spring mounting hole 1e on the visor 1.

As shown in fig. 7, the handle assembly 3 includes a handle case 3a, the handle case 3a is fixedly mounted on the support 2, a handle 3b is mounted in a handle accommodating cavity 3a01 on the handle case 3a to be movable back and forth, a handle locking and unlocking member 3c is provided at the bottom of the handle accommodating cavity 3a01 to lock or unlock the handle 3b in a corresponding operation mode, the upper end of the handle 3b is linked with the operation mode control module 4, and the operation mode control module 4 can lock or unlock the handle 3b in the corresponding operation mode. As shown in fig. 8a and 8b, the handle case 3a is provided with a coupling protrusion 3a02, the control case 4a is provided with a coupling groove 4a01 matching with the coupling protrusion 3a02, and the coupling protrusion 3a02 is fitted in the coupling groove 4a01 to make the handle case 3a and the control case 4a L-shaped or T-shaped. When the handle 3b is placed in or pulled out from the handle accommodating cavity 3a01, the handle 3b can correspondingly rotate the hidden door 5a by pressing the bent-foot protrusion 5a01 or releasing the pressing of the bent-foot protrusion 5a 01. As shown in fig. 15a, further, said handle locking and unlocking member 3c includes a mounting housing 3c01, a pawl return spring 3c02, a position limiting rod 3c03 and a pawl 3c04, said mounting housing 3c01 is fixedly mounted in a handle locking and unlocking member housing mounting groove 3a03 at the bottom of a handle accommodating chamber 3a01 in said handle box 3 a. The mounting shell 3c01 is provided with a mounting groove 3c0101, the pawl 3c04 is arranged in the mounting groove 3c0101 and can move up and down, the mounting shell 3c01 is provided with a guide rail slot hole 3c0102, one end of the limiting deflector rod 3c03 is connected with the pawl 3c04, the other end of the limiting deflector rod and the guide rail slot hole 3c0102 can be limited by the guide rail slot hole 3c0102 to limit the stroke position of the pawl 3c04 in the mounting groove 3c0101, one end of the pawl return spring 3c02 is arranged in the mounting groove 3c0101, and the other end of the pawl return spring abuts against the pawl 3c04 to provide a return force for the pawl 3c 04.

As shown in fig. 15a,15b and 15c, in this embodiment, an elastic claw 3c0401 extends from the claw 3c04, as shown in fig. 14, a handle limit catch 3b01 corresponding to the elastic claw 3c0401 is provided at a lower end of the handle 3b, the handle 3b can be linked with the claw 3c04 to move in the mounting groove 3c0101 during the up-and-down movement of the handle accommodating cavity 3a01, and during the up-and-down movement of the claw 3c04 in the mounting groove 3c0101, the elastic claw 3c0401 can be retracted into the handle limit catch 3b01 or expanded out of the handle limit catch 3b01, so as to lock or unlock the handle 3 b.

As shown in fig. 6, the operation mode control module 4 includes a control box 4a, the control box 4a is fixedly mounted on the support 2, and the dial 4b is mounted in a dial sliding groove 4a02 on the control box 4a and can slide back and forth, in this embodiment, a sliding guide 4a0201 is provided in a dial sliding groove 4a02 on the control box 4a and cooperates with a sliding slot 4b04 on the dial 4b to ensure the sliding connection between the dial 4b and the control box 4 a. A microswitch 4c is installed on the control box 4a, the dial 4b can be linked with the microswitch 4c to output a corresponding operation mode signal in the process of sliding back and forth in a dial sliding groove 4a02 on the control box 4a, as shown in fig. 6 and 9a,9b, a handle locking hole 4b02 is arranged at one end of the dial 4b, a handle locking slot 3b02 corresponding to the handle locking hole 4b02 is arranged at the upper end of the handle 3b, the dial 4b can lock or unlock the handle 3b in the corresponding operation mode through the entry and exit of the hole edge of the handle locking hole 4b02 in the handle locking slot 3b02 in the process of sliding back and forth in the dial sliding groove 4a02 on the control box 4a, a padlock sliding slot hole 4a03 is arranged on the control box 4a, and a padlock plate 4d shown in fig. 11 is installed in the padlock sliding back and forth in the padlock sliding slot hole 4a03 to realize the shielding or exposing of a padlock hole 4d01, be equipped with shifting block limiting plate 4b03 on the shifting block 4b, on the padlock board 4d with shifting block limiting plate 4b03 corresponds the department and is provided with padlock board baffle 4d02, shifting block 4b is in the in-process of making a round trip to slide in the shifting block sliding tray 4a02 on the control box 4a can pass through shifting block limiting plate 4b03 with the cooperation of padlock board baffle 4d02 realize with interlock or unblock under corresponding mode of operation between the padlock board 4d, padlock board 4d is connected with padlock board reset spring and is used for self to return padlock sliding tray hole 4a03 and provide the restoring force. Further, for convenience of operation, as shown in fig. 6, the padlock plate 4d is connected with a padlock plate pulling cover 4e as shown in fig. 10, and the padlock plate pulling cover 4e can pull the padlock plate 4d to move in the padlock sliding slot hole 4a 03.

Further, in this embodiment, in order to implement the functions of each part of the operation mode control module, as shown in fig. 8b, the specific structure of each part is as follows: an operation mode control protrusion 4a04 is disposed on the front surface of the control box 4a, an operation mode control groove 4b05 is disposed on the dial 4b corresponding to the operation mode control protrusion 4a04 as shown in fig. 9a, the operation mode control groove 4b05 is matched with the operation mode control protrusion 4a04 to ensure the switch between the corresponding operation mode positions during the back and forth sliding of the dial 4b in the dial sliding groove 4a02 on the control box 4a, the microswitch 4c is mounted in a microswitch mounting groove 4a05 on the side surface of the control box 4a, and a padlock cover limiting protrusion 4a0301 is disposed at the opening of the padlock sliding groove hole 4a03 on the control box 4a to limit the stroke position of the padlock cover 4 e. The shifting block 4b is provided with a microswitch triggering protrusion 4b06 for being linked with the microswitch 4c, and a shifting block limiting plate 4b03 is arranged at the bottom end of the tail of the shifting block 4b for preventing the shifting block 4b from falling out of the shifting block sliding groove 4a 02. The padlock plate 4d top be provided with connecting barrier 4d03 with connecting groove 4e01 on the padlock sliding cover 4e cooperatees and is connected, and backstop 4d04 sets up padlock plate 4d bottom, be equipped with padlock hole 4d01 on the padlock plate 4d and be used for the padlock. One end of the latch plate return spring is mounted in a latch plate return spring mounting hole 4d05 on the latch plate 4d, and the other end is mounted in a spring mounting hole 4a05 on the control box 4 a.

In the present embodiment, as shown in fig. 6, the operation mode locking module 6 includes a cam 6a and a rocker 6b, the cam 6a is mounted on a main shaft 7 of the automatic transfer switch operating mechanism and can be driven by the main shaft 7 to rotate back and forth, the rocker 6b is rotatably mounted on the bracket 2, as shown in fig. 12, the cam 6a is provided with a driving surface 6a01, as shown in fig. 13, the rocker 6b is provided with a coupling surface 6b01 in contact with the driving surface 6a01, the cam 6a can drive the coupling surface 6b01 to rotate the rocker 6b around the center of rotation through the driving surface 6a01 during the back and forth rotation of the main shaft 7, balancing springs 6c are connected to two sides of the rocker 6b for keeping the rocker 6b balanced in force when the rocker 6b is driven to rotate by the cam 6a, the upper end side of the rocker 6b is provided with a left limit protrusion 6b02 and a right limit protrusion 03, set up unblock breach 6b04 between left limit protrusion 6b02 and the right limit protrusion 6b03, cam 6a follows along with main shaft 7 makes a round trip to rotate the in-process, left limit protrusion 6b02 and right limit protrusion 6b03 and unblock breach 6b04 correspond respectively and act on the backstop board 4d04 on padlock board 4d thereby make padlock board 4d only can be pulled out padlock sliding groove hole 4a03 when the two split positions of automatic change-over switch realizes the padlock.

As shown in fig. 1, 4, 5 and 16a,16b,16c, when the toggle part 4b01 arranged on the front surface of the toggle block 4b is toggled to make the toggle block 4b at the uppermost end of the control box 4a, the microswitch triggering protrusion 4b06 arranged on the side surface of the toggle block 4b loosens the toggle piece of the microswitch 4c, the microswitch 4c transmits a signal to the controller, the control signal is switched in, the switch is in an "automatic" gear state, the lower end of the handle locking hole 4b02 arranged on the toggle block 4c is positioned in the handle locking slot 3b02 at the upper end of the handle 3b, the handle 3b cannot be pulled out, the bent foot protrusion 5a01 arranged on the hidden door 5a contacts with the outer edge surface of the handle 3b, the hidden door 5a is in a closed state under the pushing force of the bent foot protrusion 5a01, the manual operation opening area 1a is shielded, the padlock plate 4d is acted by the baffle 4d02 to be pulled out by the toggle block 4b03 to stop the padlock,

as shown in fig. 1, 5, 6 and 17a,17b, when the toggle part 4b01 arranged on the toggle block 4b is toggled to make the toggle block 4b in the middle position of the control box 4a in the "manual" gear position, the micro switch trigger protrusion 4b06 contacts with the toggle piece of the micro switch 4c, the micro switch 4c is switched on, the controller receives a signal to quit the control, the limit of the handle locking slot 3b02 arranged at the upper end of the handle 3b is released, the handle 3b is pressed, the handle 3b is conveniently pulled out by about 5-10 mm of the surface of the face mask pop-up 1 due to the thrust action of the handle locking and unlocking piece 3c, after the handle 3b is pulled out, the limit of the hidden door 5a is released, the handle is rotated inwards to open by the action force of the hidden door return spring 5b, the manual operation opening area 1a arranged on the face mask 1 is opened, and the manual operation rod arranged on the operation mechanism is leaked, the first power supply can be manually operated to be switched on, the second power supply can be manually operated to be switched on, and the limit of the padlock plate 4d is not released and can not be pulled out. At this time, the baffle 5a02 arranged on the hidden door 5a contacts with the sliding clamping groove 4b04 to prevent the shifting block 4b from being shifted, when the manual operation is finished, the handle 3b is placed back to the handle accommodating cavity 3a01, the bent foot bulge 5a01 arranged on the hidden door 5a is subjected to the pushing force action when the handle 3b moves downwards, the hidden door 5a is outwards rotated under the pushing force action of the bent foot bulge 5a01 until the handle 3b is placed back, the handle 3b is pressed again, the handle locking and unlocking piece 3c contracts the elastic clamping claw 3c0401 to clamp the handle limiting clamping groove 3b01 at the lower end of the handle 3b, at the moment, the handle 3b is placed back in place, the hidden door 5a is rotated to the place, the manual operation opening area 1a is shielded again, and the phenomenon that the handle 3b is easily lost in the operation field is prevented.

As shown in the attached 1,6, 18a and 18b, when the poking block 4b is in the lower end of the control box 4a and is in the 'padlock' gear position, the poking piece of the microswitch 4c is still in the pressed state, the controller is in the withdrawing state, at the moment, the upper end of a handle locking hole 4b02 arranged on the poking block 4b is positioned in a handle locking clamping groove 3b02 arranged at the upper end of a handle 3b, the handle 3b cannot be pulled out, a bent foot bulge 5a01 arranged on the hidden door 5a is contacted with the outer edge surface of the handle 3b, the hidden door 5a is in the closed state under the thrust of the bent foot bulge 5a01, the manual operation opening area 1a is shielded, at the moment, a poking block limiting plate 4b03 arranged on the poking block 4b is positioned at the lower end of a padlock plate baffle 4d02, the limit of the padlock plate 4d is released, the padlock plate 4d can be manually pulled out for carrying out the padlock, and when the padlock plate 4d is pulled out, the poking block 4b03 arranged on the padlock plate 03 arranged on the padlock baffle 4d 4d02, the lock can not be moved upwards, and the interlocking between the three gears of automatic, manual and padlock can be realized.

Meanwhile, when the cam 6a rotates to the positions of the first power supply closing, the double-split and the second power supply closing along with the operating mechanism, when the operating mechanism rotates to be at the first power supply closing position, the cam 6a rotates leftwards along with the operating mechanism, the linkage surface 6b01 of the rocker 6b rotates rightwards under the action of force, the upper end of the rocker 6b rotates rightwards under the action of the force of the balance spring 6c, so that the left limit bulge 6b02 arranged on the left side of the rocker 6b is contacted with the stop plate 4d04 arranged on the padlock plate 4d, the padlock plate 4d cannot be pulled out, as shown in figure 19, as shown in figure 20, when the operating mechanism is at the double-split position, the cam 6a rotates to the middle position, the limit of the rocker 6b is released, the rocker 6b stops to the middle position under the action of the balance springs 6c at the two ends, and the stop plate 4d04 on the padlock plate 4d is positioned at the unlocking notch 6b04 on the rocker 6b, the limit of the stop plate 4d04 is released, and the padlock plate 4d can be pulled out; when the operating mechanism is in the second power supply closing state, the cam 6a rotates towards the right side along with the operating mechanism, the linkage surface 6b01 at the lower end of the rocker 6b rotates towards the left side under the action of the driving surface 6a01, and the rocker 6b rotates towards the left under the action of the balance spring 6c, so that the right limiting protrusion 6b03 arranged on the right side of the rocker 6b is in contact with the stop plate 4d04 arranged on the padlock plate 4d, the padlock plate 4d cannot be pulled out, and the padlock plate 4d can only be pulled out at the double-split position.

This automatic change over switch device, through the redesign to automatic change over switch device structure, the operating force that this switching device set up operating button on the panel has been reduced, simultaneously automatic, the link gear between manual and the three position state of padlock is correlated with each other, the maloperation of carrying out other position states under certain position state has been avoided, whole device simple structure, the reliability that the position state realized has been improved, simultaneously need put the handle back after manual operation accomplishes, just can operate, the handle has been prevented from losing.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that; the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (7)

1. A handle assembly of an automatic transfer switching device, characterized in that: handle assembly (3) include handle box (3a), handle box (3a) are fixed to be adorned on support (2), and handle (3b) dress can come back and forth in the handle holding chamber (3a01) on handle box (3a), it can be right that handle holding chamber (3a01) bottom is provided with handle locking unblock piece (3c) handle (3b) lock or unblock under corresponding mode of operation.

2. The handle assembly of an automatic transfer switching apparatus according to claim 1, wherein: the upper end of the handle (3b) is linked with the operation mode control module (4), and the operation mode control module (4) can lock or unlock the handle (3b) in a corresponding operation mode.

3. The handle assembly of an automatic transfer switching apparatus according to claim 1, wherein: the handle box (3a) is provided with a connecting protrusion (3a02), the control box (4a) is provided with a connecting groove (4a01) matched with the connecting protrusion (3a02), and the connecting protrusion (3a02) is arranged in the connecting groove (4a01) to enable the handle box (3a) and the control box (4a) to be L-shaped or T-shaped.

4. The handle assembly of an automatic transfer switching apparatus according to claim 1, wherein: handle (3b) upper end is provided with handle locking draw-in groove (3b02) that correspond with handle locking hole (4b02) on shifting block (4b), shifting block (4b) can pass through in the back and forth slip process in shifting block sliding tray (4a02) on control box (4a) handle locking hole (4b02) the hole edge in handle locking draw-in groove (3b02) business turn over realize under the corresponding mode of operation under the locking or the unblock of handle (3 b).

5. The handle assembly of an automatic transfer switching apparatus according to claim 1, wherein: the handle locking and unlocking piece (3c) comprises a mounting shell (3c01), a pawl return spring (3c02), a limiting shift lever (3c03) and a pawl (3c04), the mounting shell (3c01) is provided with a mounting groove (3c0101), the pawl (3c04) is arranged in the mounting groove (3c0101) and can move up and down, the mounting shell (3c01) is provided with a guide rail slotted hole (3c0102), one end of a limiting shifting rod (3c03) is connected with a pawl (3c04), the other end of the limiting shifting rod and the guide rail slotted hole (3c0102) can be limited by the guide rail slotted hole (3c0102) in a stroke limiting position, so that the pawl (3c04) is limited in the up-and-down movement position in the mounting groove (3c0101), one end of a pawl return spring (3c02) is installed in the mounting groove (3c0101), and the other end of the pawl return spring abuts against the pawl (3c04) to provide return force for the pawl (3c 04).

6. The handle assembly of an automatic transfer switching apparatus according to claim 5, wherein: an elastic claw (3c0401) extends out of the pawl (3c04), a handle limiting clamping groove (3b01) corresponding to the elastic claw (3c0401) is arranged at the lower end of the handle (3b), the handle (3b) can be linked with the pawl (3c04) to move in the mounting groove (3c0101) in the up-and-down movement process in the handle accommodating cavity (3a01), and in the up-and-down movement process of the pawl (3c04) in the mounting groove (3c0101), the elastic claw (3c0401) can be retracted into the handle limiting clamping groove (3b01) or expanded out of the handle limiting clamping groove (3b01) so as to lock or unlock the handle (3 b).

7. The handle assembly of an automatic transfer switching apparatus according to claim 5, wherein: the mounting case (3c01) is fixedly mounted in a handle lock unlock case mounting groove (3a03) at the bottom of a handle receiving chamber (3a01) in the handle case (3 a).

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