Molded case electric operation interlocking structure

Abstract

The utility model relates to a plastic housing electric operation interlocking structure comprising a support, an operation shaft is arranged on the support, an indicating dial is installed at the upper end of the operation shaft, a housing is arranged on the support, and a manual operation port and an indicating port are arranged on the housing. The manual operation baffle moves horizontally on the support and is suitable for shielding the manual operation opening; the padlock plate moves up and down on the bracket; the first microswitch and the second microswitch are connected with the electric mechanism; the lifted padlock plate can interlock the on-off of the circuit of the manual operation baffle and the electric mechanism, the electric operation is prevented from being switched to be switched on due to manual misoperation when the electric operation is in a non-switching-on station, the situation that the electric operation is switched on in a manual mode or an electric mode through the electric operation is thoroughly avoided, danger is prevented, and the overall reliability is improved.

Description

Technical Field

[0001] The utility model relates to the field of electrical equipment, in particular to a plastic case electric operation interlocking structure. Background Art

[0002] Molded case switch is a very important electrical appliance with plastic shell in low voltage power distribution network and electric traction system. It integrates control and multiple protection functions. In addition to completing the contact and disconnection of the circuit, it can also protect the circuit or electrical equipment from short circuit, severe overload and undervoltage, and can also be used to start the motor infrequently. Molded case switch has the advantages of safe operation, convenient use, reliable operation, simple installation, and no need to replace components (such as fuse) after operation (such as after the short circuit fault is eliminated). Therefore, it is widely used in industry, housing and other fields.

[0003] The molded case electric operator is used to control the molded case switch to do the opening and closing movement. The current molded case electric operator mainly includes an operating shaft, a manual mechanism and an electric mechanism. The output end of the operating shaft is connected to the molded case switch. Both the manual mechanism and the electric mechanism can control the operating shaft to rotate to open and close, thereby controlling the molded case switch to do the opening and closing movement. The current molded case electric operator is not very safe. When the electrician needs to repair the circuit, the molded case electric operator switches to the opening position. At this time, the molded case electric operator lacks an interlock for the operating shaft. Other workers can still drive the operating shaft to rotate to close through the manual mechanism or the electric mechanism without knowing it, thereby affecting the safety of the workers repairing the circuit. Utility Model Content

[0004] The technical problem to be solved by the utility model is: to overcome the deficiencies of the prior art, to provide a molded case electric operator interlocking structure, and to solve the problem that the current molded case electric operator is misoperated when in a non-closing position.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A molded case electric interlocking structure is provided, comprising:

[0007] A bracket, an operating shaft is arranged on the bracket, an indicating plate is installed on the upper end of the operating shaft, a cover is arranged on the bracket, and a manual operation port and an indicating port are provided on the cover;

[0008] A hand-operated baffle plate moves horizontally on the bracket and is suitable for covering the hand-operated port;

[0009] A padlock plate that moves up and down on the bracket;

[0010] A first micro switch and a second micro switch, wherein the two micro switches are connected to the electric mechanism;

[0011] When the operating shaft is in the closing position, the indicator plate abuts against the padlock plate to limit the padlock plate from lifting upward;

[0012] When the closing position is disengaged after operation, the padlock plate is lifted and moved to the upper position. At this time, one end of the padlock plate triggers the first microswitch to cut off the power of the motor of the electric mechanism, and the other end of the padlock plate abuts against the manual baffle to limit the manual baffle from separating from the manual operation port; the padlock plate descends to the lower position. At this time, the manual baffle can be moved away from under the manual operation port and trigger the second microswitch to cut off the power of the motor of the electric mechanism.

[0013] Furthermore, the padlock plate comprises

[0014] A first plate body, on which a first trigger block, a second trigger block and a lock plate are disposed, and a lock hole is provided on the lock plate;

[0015] When the padlock plate is lifted to the upper position, the lock hole on the lock plate extends from the upper end of the cover shell, and the lock hole is connected to the lock, thereby limiting the downward movement of the padlock plate; and the first trigger block abuts against the first micro switch, and the second trigger block abuts against the hand-operated baffle.

[0016] Furthermore, a sliding hole is provided on the first plate body, a sliding rod is fixedly provided on the bracket, the sliding rod passes through the sliding hole, and the first plate body moves up and down along the sliding rod.

[0017] Furthermore, a stop pin is fixedly provided at the lower end of the indicator plate;

[0018] When the indicator disc is in the closing position along with the operating shaft, the lower end of the stop pin is suitable for abutting against the padlock plate to limit the lifting of the padlock plate.

[0019] Furthermore, the hand-operated baffle includes

[0020] The second plate body is provided with a third trigger part, a clamping part and a shielding part, the shielding part is suitable for shielding the hand operation port, the clamping part is suitable for abutting against the lifted padlock plate, and the third trigger part is suitable for abutting against the second micro switch.

[0021] Furthermore, a lever is disposed on the second plate body, and the lever extends from the upper end of the cover shell.

[0022] Furthermore, a mounting frame is arranged on the bracket, the second micro switch is arranged on the mounting frame, a guide groove is arranged on the mounting frame, and the hand-operated baffle moves horizontally along the guide groove.

[0023] The beneficial effects of the utility model are:

[0024] The plastic shell electric operator interlocking structure of the utility model can ensure that the padlock plate is lifted only when the electric operator is out of the opening position, and the lifted padlock plate can interlock the hand-operated baffle and the circuit on-off of the electric mechanism, preventing the electric operator from switching to the closing position due to human error when the electric operator is in the non-closing position, completely avoiding the electric operator from closing the switch through the manual mode or the electric mode, preventing danger and improving the overall reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The utility model is further described below in conjunction with the accompanying drawings.

[0026] Figure 1 This is a schematic diagram of the plastic case electric interlocking structure of the utility model;

[0027] Figure 2 and Figure 3 This is a schematic diagram of the plastic case electric interlocking structure (without cover) of the utility model;

[0028] Figure 4 It is the structural diagram of the padlock plate, the manual baffle plate and two micro switches;

[0029] Figure 5 It is a schematic diagram of the mounting plate;

[0030] Figure 6 It is a schematic diagram of the hand-operated baffle;

[0031] Figure 7 It is a schematic diagram of a padlock plate;

[0032] Among them, 1, bracket, 11, mounting frame, 111, guide groove, 12, slide bar;

[0033] 2. hand-operated baffle, 21. third triggering part, 22. clamping part, 23. shielding part, 24. lever;

[0034] 3. padlock plate, 31. first trigger block, 32. second trigger block, 33. lock plate, 331. lock hole, 34. slide hole;

[0035] 41. a first micro switch, 42. a second micro switch;

[0036] 5. operating shaft, 51. indicator plate, 52. stop pin;

[0037] 6. Cover, 61. Hand operation port, 62. Indicator port;

[0038] 7. Motor. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] The present application provides a molded case electric interlocking structure, which is described in detail below. It should be noted that the description order of the following embodiments does not limit the preferred order of the embodiments of the present application. In the following embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0041] In order to solve the technical problem in the prior art that a molded case electric operator may be misoperated when in a non-closing position, an embodiment of the present application provides a molded case electric operator interlocking structure, which is described in detail below.

[0042] like Figures 1 to 7 As shown, a molded case electric interlocking structure is provided, comprising

[0043] A bracket 1, an operating shaft 5 is arranged on the bracket 1, an indicating plate 51 is installed on the upper end of the operating shaft 5, a cover 6 is arranged on the bracket 1, and a manual operation port 61 and an indicating port 62 are provided on the cover 6;

[0044] A hand-operated baffle 2, which moves horizontally on the bracket 1 and is suitable for shielding the hand-operated opening 61;

[0045] The padlock plate 3 moves up and down on the bracket 1;

[0046] A first micro switch 41 and a second micro switch 42, both micro switches are connected to the electric mechanism;

[0047] When the operating shaft 5 is in the closing position, the indicator plate 51 abuts against the padlock plate 3 to limit the padlock plate 3 from lifting upward;

[0048] When the closing position is disengaged after operation, the padlock plate 3 is lifted to the upper position. At this time, one end of the padlock plate 3 triggers the first microswitch 41 to cut off the power of the motor 7 of the electric mechanism, and the other end of the padlock plate 3 abuts against the manual baffle 2 to limit the manual baffle 2 from being separated from the manual operation port 61; the padlock plate 3 drops to the lower position. At this time, the manual baffle 2 can be moved away from under the manual operation port 61 and trigger the second microswitch 42 to cut off the power of the motor 7 of the electric mechanism.

[0049] In this embodiment, the electric mechanism includes a motor 7, a gear mechanism and a controller, the controller is electrically connected to two micro switches, and the two micro switches are connected in series with the motor 7. As long as one of the micro switches is triggered, the circuit of the entire electric mechanism will be disconnected, so that the motor 7 cannot work. When the motor 7 is working, the motor 7 drives the operating shaft 5 to rotate through the gear mechanism.

[0050] The molded case switch is installed at the lower end of the entire molded case electric operator. The switch key of the molded case switch cooperates with the lower end of the operating shaft 5. A cam is set at the lower end of the operating shaft 5. The cam is located in the switch key. When the operating shaft 5 drives the cam to rotate in the switch key, it can drive the switch key to open and close.

[0051] Specifically, as an optional implementation in this embodiment, Figure 7 As shown, the padlock plate 3 includes

[0052] A first plate body, on which a first trigger block 31, a second trigger block 32 and a lock plate 33 are disposed, and a lock hole is formed on the lock plate 33;

[0053] When the padlock plate 3 is lifted to the upper position, the lock hole on the lock plate 33 extends from the upper end of the cover shell 6, and the lock hole is connected to the lock, thereby limiting the downward movement of the padlock plate 3; and the first trigger block 31 abuts against the first micro switch 41, and the second trigger block 32 abuts against the manual baffle 2.

[0054] The lock plate 33 is vertically arranged, and the lock hole is located at the upper end of the lock plate 33. When the lock plate 33 is lifted to the upper position, the lock hole on the lock plate 33 extends out from the cover shell 6. After the lock hole is connected to the lock, the lock plate can be restricted from moving downward.

[0055] In this embodiment, the first trigger block 31, the second trigger block 32 and the first plate body are an integral structure.

[0056] Specifically, as an optional implementation in this embodiment, Figure 7 As shown, a sliding hole 34 is provided on the first plate body, a sliding rod 12 is fixedly provided on the bracket 1 , the sliding rod 12 passes through the sliding hole 34 , and the first plate body moves up and down along the sliding rod 12 .

[0057] Specifically, as an optional implementation in this embodiment, Figure 4 As shown, a stop pin 52 is fixedly provided at the lower end of the indicator plate 51;

[0058] When the indicator plate 51 is in the closing position along with the operating shaft 5 , the lower end of the stop pin 52 is adapted to abut against the padlock plate 3 to limit the padlock plate 3 from lifting.

[0059] Specifically, as an optional implementation in this embodiment, Figures 4 to 6 As shown, the hand-operated baffle 2 includes

[0060] The second plate body is provided with a third trigger part 21, a clamping part 22 and a shielding part 23, the shielding part 23 is suitable for shielding the hand operation port 61, the clamping part 22 is suitable for abutting against the raised padlock plate 3, and the third trigger part 21 is suitable for abutting against the second micro switch 42.

[0061] In this embodiment, the bottom surface of the third triggering portion 21 is located on an inclined surface. When the hand-operated baffle 2 is in the translation process, the inclined surface cooperates with the second micro switch 42 to trigger the second micro switch 42 .

[0062] In this embodiment, a lever 24 is disposed on the second plate body, and a corresponding rod hole is formed on the cover shell 6 . The lever 24 extends out of the rod hole, and the length of the rod hole corresponds to the moving length of the hand-operated baffle 2 .

[0063] Specifically, as an optional implementation in this embodiment, Figure 3 to Figure 2 As shown, a mounting frame 11 is arranged on the bracket 1 , the second micro switch 42 is arranged on the mounting frame 11 , a guide groove 111 is arranged on the mounting frame 11 , and the hand-operated baffle 2 moves horizontally along the guide groove 111 .

[0064] There are three positions on the molded case switch, the closing position, the opening position and the tripping position. When a circuit malfunction occurs, the switch will jump to the tripping position. The molded case electric operator drives the molded case switch to close and open the switch through the operating shaft 5. When the molded case switch trips, the molded case electric operator rotates to the tripping position.

[0065] When the electric operator is under maintenance, the molded case switch must be in the tripped position or the open position, that is, the non-closing position mentioned above. In order to ensure the safety of the electrician, an interlocking mechanism is added. The working principle of the interlocking mechanism is as follows: when the operating shaft 5 is in the closing position, the indicator plate 51 is also in the closing position. At this time, the stop pin 52 is located above the padlock plate 3, and the padlock plate 3 cannot be lifted. Therefore, the padlock plate 3 cannot trigger the first microswitch 41. At this time, the molded case electric operator can operate normally to drive the operating shaft 5 to switch from the closing position to the opening position.

[0066] When workers are needed for maintenance, the plastic shell electric operator switches to the opening position. At this time, the stop pin 52 is removed from above the padlock plate 3, and the padlock plate 3 is lifted and connected to the lock. At this time, the first microswitch 41 is triggered, and the motor 7 is disconnected from the power supply, and the electric mechanism cannot work, ensuring the safety of electrician maintenance. At the same time, the lifted padlock plate 3 also blocks the manual baffle 2, so that the manual baffle 2 continues to block the manual operating port 61 on the cover shell 6, restricting other workers from closing the operating shaft 5 through the manual operating port 61, further ensuring the safety of electrician maintenance.

[0067] The various devices selected in this application (components whose specific structures are not described) are all universal standard parts or components known to technical personnel in this field, and their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods.

[0068] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0069] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0070] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interfaces, and the indirect coupling or communication connection of devices or units can be electrical, mechanical or other forms.

[0071] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0072] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0073] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without departing from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A molded case electric interlocking structure, characterized in that: include A bracket (1), an operating shaft (5) is arranged on the bracket (1), an indicating plate (51) is installed on the upper end of the operating shaft (5), a cover (6) is arranged on the bracket (1), and a manual operation port (61) and an indicating port (62) are provided on the cover (6); A hand-operated baffle (2) which moves horizontally on the bracket (1) and is suitable for shielding the hand-operated opening (61); A padlock plate (3) that moves up and down on the bracket (1); A first micro switch (41) and a second micro switch (42), the two micro switches being connected to the electric mechanism; When the operating shaft (5) is in the closing position, the indicator plate (51) abuts against the padlock plate (3) to limit the padlock plate (3) from lifting upward; When the closing position is disengaged after operation, the padlock plate (3) is adapted to be lifted and moved to an upper position. At this time, one end of the padlock plate (3) triggers a first micro switch (41) to cut off the power supply to the motor of the electric mechanism, and the other end of the padlock plate (3) abuts against a manual baffle (2) to restrict the manual baffle (2) from separating from the manual operation opening (61); when the padlock plate (3) is lowered to a lower position, the manual baffle (2) can be moved away from below the manual operation opening (61) and triggers a second micro switch (42) to cut off the power supply to the motor of the electric mechanism.

2. The molded case electric interlocking structure according to claim 1 is characterized in that: The padlock plate (3) comprises A first plate body, on which a first trigger block (31), a second trigger block (32) and a lock plate (33) are arranged, and a lock hole is provided on the lock plate (33); When the padlock plate (3) is lifted and moved to the upper position, the lock hole on the lock plate (33) extends from the upper end of the cover shell (6), and the lock hole is connected to a lock, thereby limiting the downward movement of the padlock plate (3); and the first trigger block (31) abuts against the first micro switch (41), and the second trigger block (32) abuts against the hand-operated baffle (2).

3. The molded case electric interlocking structure according to claim 2 is characterized in that: A sliding hole (34) is provided on the first plate body, a sliding rod (12) is fixedly arranged on the bracket (1), the sliding rod (12) passes through the sliding hole (34), and the first plate body moves up and down along the sliding rod (12).

4. The molded case electric interlocking structure according to claim 1 is characterized in that: A stop pin (52) is fixedly arranged at the lower end of the indicator plate (51); When the indicator plate (51) is in the closing position along with the operating shaft (5), the lower end of the stop pin (52) is suitable for abutting against the padlock plate (3) to limit the lifting of the padlock plate (3).

5. The molded case electric interlocking structure according to claim 1 is characterized in that: The hand-operated baffle (2) comprises A second plate body, wherein the second plate body is provided with a third trigger portion (21), a clamping portion (22) and a shielding portion (23), wherein the shielding portion (23) is suitable for shielding the hand operation port (61), the clamping portion (22) is suitable for abutting against the raised padlock plate (3), and the third trigger portion (21) is suitable for abutting against the second micro switch (42).

6. The molded case electric interlocking structure according to claim 5 is characterized in that: A shifting rod (24) is arranged on the second plate body, and the shifting rod (24) extends from the upper end of the cover shell (6).

7. The molded case electric interlocking structure according to claim 2 is characterized in that: A mounting frame (11) is arranged on the bracket (1), the second micro switch (42) is arranged on the mounting frame (11), a guide groove (111) is arranged on the mounting frame (11), and the hand-operated baffle (2) moves horizontally along the guide groove (111).

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