Interlocking Structure between Padlock of Electric Operating Mechanism and Manual Lock

Abstract

The present invention provides an interlocking structure for a padlock and a manual lock of an electric operating mechanism, which includes a padlock plate and a connecting plate that reciprocates with the reciprocating sliding of the padlock plate. A first contact member capable of closing and disconnecting the circuit is provided at the front end of the connecting plate, and a mounting seat suspended above the connecting plate is provided on the bracket; it also includes a cover plate and a second contact member capable of closing and disconnecting the circuit that reciprocates with the reciprocating sliding of the cover plate; when the first contact member slides to close the microswitch, the first contact member is in the moving direction of the second contact member and blocks its movement; when the second contact member slides to close the microswitch, the second contact member is in the moving direction of the first contact member and blocks its movement; through the mutual blocking of the first and second contact members in the spatial structure, the interlocking of the padlock and the manual lock is realized, with high safety and simple structure. At the same time, the design of arranging the microswitch above the connecting plate saves more space.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit breaker control, and particularly to an interlocking structure between a padlock and a manual lock of an electric operating mechanism. Background Art

[0002] A circuit breaker is a switching device for connecting or disconnecting a circuit. The opening and closing operations of the circuit breaker can be locally manually controlled or remotely controlled through an electric operating mechanism, that is, automatic control is achieved. The remote control is realized by giving a rotation signal to the motor in the electric operating mechanism, and the local manual control is achieved by toggling a brake handle to cut off the circuit. Before the brake handle cuts off the circuit, it is necessary to first cut off the remote control. Usually, a sliding cover plate is arranged below the panel, and the operation hole is covered by a dial post arranged on the cover plate. Sliding the cover plate exposes the operation hole, and the micro switch is closed by a contact arranged on the cover plate hitting the micro switch, and the remote control terminal circuit is disconnected, and the user can perform the opening operation.

[0003] When performing maintenance, it is first necessary to disconnect the circuit and pull up the padlock. Usually, the cover plate is first slid to close the micro switch to disconnect the remote control, then the circuit is disconnected by the brake handle, and finally the padlock is pulled up for maintenance; or the remote control is first turned off, then the circuit is disconnected by the brake handle, and finally the padlock is pulled up for maintenance. In actual use, there is a risk of accidentally operating to connect the remote control to energize the circuit, which poses a safety threat to both the equipment and the maintenance personnel. Summary of the Invention

[0004] The purpose of the present invention is to provide an interlocking structure between a padlock and a manual lock of an electric operating mechanism to solve the above problems.

[0005] The technical solution adopted by the present invention is as follows:

[0006] An interlocking structure between a padlock and a manual lock of an electric operating mechanism is arranged on a bracket of the electric operating mechanism. The interlocking structure between the padlock and the manual lock of the electric operating mechanism includes a padlock assembly and a manual / automatic switching assembly;

[0007] The padlock assembly includes a padlock plate and a connecting plate that reciprocates with the reciprocating sliding of the padlock plate. A first contact is arranged at the front end of the connecting plate. The closing and opening of the circuit can be realized by the contact and separation of the first contact and the micro switch. An installation seat for installing the micro switch is arranged on the bracket, and the installation seat is suspended above the connecting plate;

[0008] The manual / automatic switching assembly includes a slidable cover plate arranged on the panel of the electric operating mechanism and a second contact that reciprocates with the reciprocating sliding of the cover plate. The closing and opening of the circuit can be realized by the contact and separation of the second contact and the micro switch;

[0009] When the first contact slides to close the micro switch, the first contact is located in the movement direction of the second contact and prevents the second contact from moving;

[0010] When the second contact piece slides to close the micro switch, the second contact piece is located in the moving direction of the first contact piece and prevents the first contact piece from moving.

[0011] Further specifically, a guide groove is provided on the padlock plate, and a guide column extending toward the padlock plate is provided at the rear end of the connecting plate, and the guide column can slide freely in the guide groove, and the guide groove includes a first guide groove and a second guide groove, the first guide groove and the second guide groove are connected, the first guide groove is inclined to the movement direction of the first contact piece, and the second guide groove is perpendicular to the movement direction of the first contact piece, and the movement of the guide column from the first guide groove to the second guide groove causes the first contact piece to move toward the direction of the micro switch.

[0012] More specifically, a guide post rebound groove is provided on the connecting plate, and the guide post is provided on one side of the guide post rebound groove.

[0013] More specifically, the height of the first contact member is higher than the connecting plate.

[0014] More specifically, a first position-limiting member is disposed on the connecting plate, the first position-limiting member is higher than the lowest position of the mounting seat, and the first position-limiting member is disposed on a side of the mounting seat away from the first contact member.

[0015] More specifically, a second limiter is disposed on the bracket, the second limiter is higher than the lowest position of the first contact member, and the second limiter is disposed on a side of the first contact member away from the micro switch.

[0016] More specifically, a third limiting member is provided below the connecting plate, and the third limiting member is an L-shaped extending end, and one side edge of the bracket is clamped in a sliding groove formed by the L-shaped extending end and the connecting plate and can slide therein.

[0017] More specifically, a fourth limiting member is disposed on the side surface of the connecting plate, and an upper surface of the fourth limiting member abuts against a lower surface of the bracket.

[0018] More specifically, the connecting plate is provided with a clearance groove, and the clearance groove can accommodate the installation seat to pass through.

[0019] More specifically, a contact slope is provided on the second contact member, and the contact slope contacts the micro switch from the side.

[0020] The beneficial effects of the present invention are:

[0021] The technical solution provided by the present invention realizes the interlock between the padlock and the manual lock by mutually blocking the first contact member and the second contact member in the spatial structure, making the two circuit-breaking methods for the remote control terminal relatively independent, with high safety and simple structure. At the same time, the design of arranging the microswitch above the connecting plate is adopted, which saves more internal space of the circuit breaker. Description of the Drawings

[0022] Figure 1 It is a schematic structural diagram of the electric operating mechanism without a panel;

[0023] Figure 2 It is a schematic structural diagram of the padlock plate;

[0024] Figure 3 It is a schematic upper perspective view of the connecting plate;

[0025] Figure 4 It is a schematic lower perspective view of the connecting plate;

[0026] Figure 5 It is a schematic diagram of the padlock assembly;

[0027] Figure 6 It is a bottom view of the panel;

[0028] Figure 7 It is a schematic upper perspective view of the cover plate;

[0029] Figure 8 It is a schematic lower perspective view of the cover plate;

[0030] Figure 9 It is a top view of the manual / automatic switching component;

[0031] Figure 10 It is a bottom view of the manual / automatic switching component;

[0032] Figure 11 It is a schematic position diagram when both the padlock assembly and the manual / automatic switching component are closed;

[0033] Figure 12 It is a schematic diagram of the farthest position that the second contact member can move to when the padlock plate is pulled up;

[0034] Figure 13 It is a schematic diagram of the farthest position that the first contact member can move to when the cover plate is opened.

[0035] Wherein: 1 - bracket, 2 - padlock plate, 3 - connecting plate, 4 - first contact, 5 - micro switch, 6 - mounting seat, 7 - panel, 8 - cover plate, 9 - second contact, 901 - contact inclined surface, 10 - guide post, 1101 - first guide groove, 1102 - second guide groove, 12 - guide post return groove, 13 - first limiting member, 14 - second limiting member, 15 - third limiting member, 16 - fourth limiting member, 17 - relief groove, 18 - operation hole, 19 - cover plate sliding groove, 20 - pushing portion, 21 - positioning sliding groove, 22 - buckle member, 23 - buckle return groove, 24 - positioning protrusion, 2501 - first positioning groove, 2502 - second positioning groove. Detailed implementation manners

[0036] The present invention will be described in detail below in conjunction with the specific implementation manners shown in the drawings. However, these implementation manners do not limit the present invention, and any structural, method, or functional transformation made by those of ordinary skill in the art based on these implementation manners is included within the protection scope of the present invention.

[0037] If the present invention involves orientations (such as up, down, left, right, front, back, outside, inside, etc.) during the description, the involved orientations need to be defined. For example, "To clearly express the positions and directions described within the present invention, with the instrument operator as a reference, the end closer to the operator is the proximal end, and the end farther from the operator is the distal end." Or define it with reference to the paper surface or others. Of course, if the positional relationship between the two is defined by mutual reference in the subsequent description, it may not be defined here.

[0038] Define "front" as Figure 5 the direction where "front" is marked in Figure 5 Define "rear" as Figure 5 the direction where "rear" is marked in Figure 5 Define "upper" as

[0039] An interlocking structure for a padlock and a manual lock of an electric operating mechanism is provided on the bracket 1 of the electric operating mechanism. The bracket 1 is used to support and install various components. The interlocking structure for the padlock and the manual lock of the electric operating mechanism includes a padlock assembly and a manual / automatic switching assembly;

[0040] The padlock assembly includes a padlock plate 2 and a connecting plate 3 that reciprocates with the reciprocating sliding of the padlock plate 2. A first contact member 4 is provided at the front end of the connecting plate 3. The height of the first contact member 4 is higher than that of the connecting plate 3. The closing and opening of the circuit can be achieved by the contact and separation between the first contact member 4 and the microswitch 5. An installation seat 6 for installing the microswitch 5 is provided on the bracket 1, and the installation seat 6 is suspended above the connecting plate 3. In this embodiment, the installation seat 6 and the bracket 1 are integrally formed;

[0041] The manual / automatic switching assembly includes a slidable cover plate 8 provided on the panel 7 of the electric operating mechanism and a second contact member 9 that reciprocates with the reciprocating sliding of the cover plate 8. The closing and opening of the circuit of the remote control end can be achieved by the contact and separation between the second contact member 9 and the microswitch 5;

[0042] When the first contact member 4 slides to close the microswitch 5, the first contact member 4 is located in the moving direction of the second contact member 9 and blocks the movement of the second contact member 9;

[0043] When the second contact member 9 slides to close the microswitch 5, the second contact member 9 is located in the moving direction of the first contact member 4 and blocks the movement of the first contact member 4.

[0044] The moving direction of the padlock plate 2 is perpendicular to the moving direction of the first contact member 4. In this embodiment, the padlock plate 2 reciprocates in the vertical direction, and the first contact member 4 reciprocates in the front-rear direction.

[0045] A guiding groove is provided on the padlock plate 2. A guiding column 10 extending towards the padlock plate 2 is provided at the rear end of the connecting plate 3. The guiding column 10 can slide freely in the guiding groove. The guiding groove includes a first guiding groove 1101 and a second guiding groove 1102. The first guiding groove 1101 and the second guiding groove 1102 are connected. The connection between the first guiding groove 1101 and the second guiding groove 1102 is in an arc-shaped transition, making the sliding direction change of the guiding column 10 between the two more smooth and easy.

[0046] The first guiding groove 1101 is inclined to the moving direction of the first contact member 4, and the second guiding groove 1102 is perpendicular to the moving direction of the first contact member 4. The movement of the guiding column 10 from the first guiding groove 1101 to the second guiding groove 1102 makes the first contact member 4 move towards the microswitch 5.

[0047] The working principle of the padlock assembly is as follows:

[0048] When the padlock plate 2 is pulled upward, under the action of force, the guide post 10 moves away from the microswitch 5 in the first guide groove 1101, thereby driving the first contact 4 to move towards the microswitch 5 to achieve the closing of the microswitch 5.

[0049] The padlock plate 2 continues to move upward, and the guide post 10 slides through the junction of the first guide groove 1101 and the second guide groove 1102 and enters the second guide groove 1102. During this process, due to the supporting force provided by the bracket 1, the position of the guide post 10 remains unchanged relative to the circuit breaker, the position of the connecting plate 3 remains unchanged, the position of the first contact 4 remains unchanged, the microswitch 5 remains in the closed state, the padlock plate 2 is locked by a padlock, and the remote control terminal circuit remains disconnected.

[0050] A guide post rebound groove 12 is provided on the connecting plate 3. The guide post 10 is arranged on one side of the guide post rebound groove 12, which avoids jamming when pulling up or lowering the padlock. When the guide post 10 is stressed, it can deform towards the guide post rebound groove 12, making the operation smoother.

[0051] In order to limit the first contact 4 in the moving direction thereof, a first limiting member 13 is provided on the connecting plate 3. The first limiting member 13 is higher than the lowest position of the mounting seat 6. The first limiting member 13 is arranged on the side of the mounting seat 6 away from the first contact 4. In this embodiment, the first limiting member 13 is a retaining wall extending upward from the connecting plate 3. When moving to the front limit position, the front side wall of the retaining wall abuts against the rear side wall of the mounting seat 6, and the first contact 4 cannot move forward any further.

[0052] A second limiting member 14 is provided on the bracket 1. The second limiting member 14 is higher than the lowest position of the first contact 4. The second limiting member 14 is arranged on the side of the first contact 4 away from the microswitch 5. In this embodiment, the second limiting member 14 is a block extending upward from the bracket 1. When moving to the rear limit position, the rear side wall of the block abuts against the front side wall of the first contact 4, and the first contact 4 cannot move backward any further.

[0053] In order to limit the connecting plate 3 in the vertical direction and prevent the connecting plate 3 from moving upward along with the guide post 10, a third limiting member 15 is provided below the connecting plate 3. The third limiting member 15 is an L-shaped protruding end. One side of the bracket 1 is clamped in the chute formed by the L-shaped protruding end and the connecting plate 3 and can slide therein. When an upward external force acts on the connecting plate 3, the bracket 1 generates a downward reaction force on the L-shaped protruding end, so that the connecting plate 3 does not undergo upward displacement, and the sliding between the L-shaped protruding end and the bracket 1 also keeps the connecting plate 3 stable in the horizontal direction.

[0054] A fourth limit member 16 is provided on the side of the connecting plate 3, and the upper surface of the fourth limit member 16 abuts against the lower surface of the bracket 1. In the present embodiment, the fourth limit member 16 is two rectangular blocks extending horizontally outward from the side of the connecting plate 3, and the rectangular blocks are symmetrically distributed at both ends of the side of the connecting plate 3. When the connecting plate 3 is subjected to an upward external force, the bracket 1 generates a downward reaction force on the rectangular blocks, so that the connecting plate 3 does not move upward.

[0055] The connecting plate 3 is provided with a clearance groove 17, and the clearance groove 17 can accommodate the mounting seat 6. When installing the connecting plate 3, it is necessary to install it from the top to the bracket 1. Since the mounting seat 6 is integrally formed with the bracket 1, the position of the mounting seat 6 needs to be avoided. The design of the clearance groove 17 in this design solution makes the installation of the connecting plate 3 more convenient and conforms to the design of other components, making full use of the space.

[0056] The panel 7 is arranged above the bracket 1 and the circuit breaker box, and an operation hole 18 is arranged on the panel 7. The cover plate 8 is used to cover the operation hole 18. A cover plate slide groove 19 is arranged between the cover plate 8 and the panel 7. The cover plate 8 is provided with a pushing part 20 for driving the cover plate 8 to slide in the cover plate slide groove 19. In this embodiment, the cover plate slide groove 19 is arranged in the panel 7, and a slider matching the cover plate slide groove 19 is arranged on the cover plate 8.

[0057] In this embodiment, the pushing portion 20 disposed on the cover plate 8 is a strip-shaped groove, and force is applied to the bottom or side wall of the strip-shaped groove to achieve movement of the cover plate 8 .

[0058] In addition, the pushing portion 20 may also be a protrusion based on the cover plate 8 and extending upward, and force is applied to the protrusion to achieve movement of the cover plate 8.

[0059] A limit buckle assembly is provided on the panel 7, and the limit buckle assembly includes a positioning slot 21 provided on the panel 7, a buckle is provided on one side of the positioning slot 21, and the buckle includes a buckle part 22 extending into the positioning slot 21 and a buckle rebound groove 23 provided next to the buckle part 22.

[0060] The cover plate 8 is provided with a positioning member that cooperates with the position-limiting buckle assembly. When the cover plate 8 is in the open or closed position, the position of the cover plate 8 is limited by the position-limiting buckle assembly. The positioning member includes a positioning protrusion 24 provided at the lower part of the cover plate 8 and a positioning groove provided on the positioning protrusion 24. The positioning groove includes a first positioning groove 2501 and a second positioning groove 2502. The buckle 22 can be clamped in the positioning groove and does not move without external force.

[0061] A contact inclined surface 901 is provided on the second contact member 9, and the contact inclined surface 901 contacts the microswitch 5 from the side.

[0062] Define the open position as the position of the cover plate 8 when the operation hole 18 is completely exposed, and define the closed position as the position of the cover plate 8 when the operation hole 18 is completely blocked.

[0063] The working principle of the manual / automatic switching component is as follows:

[0064] By applying an external force to the pushing portion 20, the cover plate 8 is moved toward the open position. The first positioning groove 2501 presses the buckle member 22 to deform in the direction of the buckle return groove 23. The first positioning groove 2501 and the buckle member 22 are gradually separated. The cover plate 8 continues to move toward the open position. The second contact member 9 moves toward the microswitch 5. The contact inclined surface 901 of the second contact member 9 contacts the microswitch 5 to close the microswitch 5 until the buckle member 22 is engaged in the second positioning groove 2502. Without applying a force to the pushing portion 20, the buckle member 22 and the second positioning groove 2502 will not be separated, and the microswitch 5 remains closed, and the remote control terminal circuit remains open.

[0065] By applying an external force to the pushing portion 20, the cover plate 8 is moved toward the closed position. The second positioning groove 2502 presses the buckle member 22 to deform in the direction of the buckle return groove 23. The second positioning groove 2502 and the buckle member 22 are gradually separated. The cover plate 8 continues to move toward the closed position. The second contact member 9 moves away from the microswitch 5. The contact inclined surface 901 of the second contact member 9 is separated from the microswitch 5 to open the microswitch 5 until the buckle member 22 is engaged in the first positioning groove 2501. Without applying a force to the pushing portion 20, the buckle member 22 and the first positioning groove 2501 will not be separated, and the microswitch 5 remains open, and the remote control terminal circuit is in an on state.

[0066] The working principle of the padlock and manual lock interlocking structure is as follows:

[0067] When the user pulls up the padlock plate 2, the first contact member 4 abuts against the microswitch 5 to close the microswitch 5, and the remote control terminal circuit is opened. If a force is applied to the pushing portion 20 to slide the cover plate 8 toward the open position, the left side surface of the second contact member 9 contacts the right side surface of the first contact member 4. The first contact member 4 blocks the movement of the second contact member 9 so that the cover plate 8 cannot slide to the open position, and others cannot operate through the operation hole 18.

[0068] When the user slides the cover plate 8 to the open position, the second contact 9 abuts against the microswitch 5 to close the microswitch 5, and the remote control terminal circuit is disconnected. If the padlock plate 2 is pulled up, the rear side of the first contact 4 contacts the front side of the second contact 9, and the second contact 9 blocks the movement of the first contact 4 so that the padlock plate 2 cannot be pulled up to the specified position.

[0069] The technical solution provided by the present invention realizes the interlock between the padlock and the manual lock by mutually blocking the first contact 4 and the second contact 9 in the spatial structure, making the two ways of opening the circuit of the remote control terminal relatively independent, with high safety and simple structure. At the same time, the design of arranging the microswitch 5 above the connecting plate 3 saves more internal space of the circuit breaker.

[0070] It should be understood that although this specification is described according to the embodiments, not every embodiment only includes an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0071] The series of detailed descriptions listed above are only specific descriptions of the feasible embodiments of the present invention, and they are not used to limit the protection scope of the present invention. Any equivalent embodiments or changes made without departing from the technical spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. An interlocking structure for a padlock and a manual lock of an electric operating mechanism, which is arranged on a bracket (1) of the electric operating mechanism. The interlocking structure for the padlock and the manual lock of the electric operating mechanism includes a padlock assembly and a manual / automatic switching assembly. It is characterized in that: The padlock assembly includes a padlock plate (2) and a connecting plate (3) that reciprocates as the padlock plate (2) reciprocates. A first contact member (4) is provided at the front end of the connecting plate (3). By the contact and separation between the first contact member (4) and a microswitch (5), the closing and opening of a circuit can be achieved. An installation seat (6) for installing the microswitch (5) is arranged on the bracket (1), and the installation seat (6) is suspended above the connecting plate (3); a guiding groove is arranged on the padlock plate (2), and a guiding post (10) extending towards the padlock plate (2) is provided at the rear end of the connecting plate (3). The guiding post (10) can slide freely in the guiding groove. The guiding groove includes a first guiding groove (1101) and a second guiding groove (1102), and the first guiding groove (1101) and the second guiding groove (1102) are communicated with each other. The first guiding groove (1101) is inclined with respect to the movement direction of the first contact member (4), and the second guiding groove (1102) is perpendicular to the movement direction of the first contact member (4). The movement of the guiding post (10) from the first guiding groove (1101) to the second guiding groove (1102) causes the first contact member (4) to move towards the microswitch (5); a first limiting member (13) is arranged on the connecting plate (3), and the first limiting member (13) is higher than the lowest position of the installation seat (6). The first limiting member (13) is arranged on the side of the installation seat (6) away from the first contact member (4); The manual / automatic switching assembly includes a slidable cover plate (8) arranged on a panel (7) of the electric operating mechanism and a second contact member (9) that reciprocates as the cover plate (8) reciprocates. By the contact and separation between the second contact member (9) and the microswitch (5), the closing and opening of a circuit can be achieved; When the first contact member (4) slides to close the microswitch (5), the first contact member (4) is located in the movement direction of the second contact member (9) and blocks the movement of the second contact member (9); When the second contact member (9) slides to close the microswitch (5), the second contact member (9) is located in the movement direction of the first contact member (4) and blocks the movement of the first contact member (4).

2. The interlocking structure for a padlock and a manual lock of an electric operating mechanism according to claim 1, characterized in that: A guiding post return groove (12) is arranged on the connecting plate (3), and the guiding post (10) is arranged on one side of the guiding post return groove (12).

3. The interlocking structure for a padlock and a manual lock of an electric operating mechanism according to claim 2, characterized in that: The height of the first contact member (4) is higher than that of the connecting plate (3).

4. The interlocking structure for a padlock and a manual lock of an electric operating mechanism according to claim 1, characterized in that: The bracket (1) is provided with a second limiter (14), the second limiter (14) being higher than the lowest position of the first contact member (4), and the second limiter (14) being provided on a side of the first contact member (4) away from the micro switch (5).

5. The interlocking structure of the padlock and manual lock of the electric operating mechanism according to claim 4 is characterized in that: A third limiting member (15) is provided below the connecting plate (3), and the third limiting member (15) is an L-shaped protruding end. One side edge of the bracket (1) is clamped in a sliding groove formed by the L-shaped protruding end and the connecting plate (3) and can slide therein.

6. The interlocking structure of the padlock and manual lock of the electric operating mechanism according to claim 1, characterized in that: A fourth limiting member (16) is provided on the side surface of the connecting plate (3), and the upper surface of the fourth limiting member (16) abuts against the lower surface of the bracket (1).

7. The interlocking structure of the padlock and manual lock of the electric operating mechanism according to claim 1, characterized in that: The connecting plate (3) is provided with a clearance groove (17), and the clearance groove (17) can accommodate the installation seat (6) to pass through.

8. The interlocking structure of the padlock and manual lock of the electric operating mechanism according to claim 1, characterized in that: The second contact piece (9) is provided with a contact bevel (901), and the contact bevel (901) contacts the micro switch (5) from the side.

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