Isolation switch mechanism and switch device

Abstract

The utility model provides an isolating switch mechanism and a switch device, and relates to the technical field of isolating switch mechanisms. In the disconnecting switch mechanism, a grounding operation shaft is rotatably connected to a mounting main body. The grounding transition shaft is sleeved on the grounding operation shaft and can rotate freely. The output shaft is in transmission connection with the grounding operation shaft and the grounding transition shaft. The output shaft is used for executing closing. The cam structure is fixedly arranged on the grounding transition shaft and is provided with an abutting part. The side, facing the cam structure, of the closing microswitch is provided with a first trigger switch. And the abutting part abuts against the first trigger switch during closing. The closing microswitch is configured to send out a first electric signal representing the closing state when the first trigger switch is abutted. The switch device provided by the utility model adopts the isolating switch mechanism. The isolating switch mechanism and the switch device provided by the utility model can improve the problem of potential safety hazards caused by incapability of accurately judging in-place closing, in-place opening and in-place grounding.

Description

Technical Field

[0001] This utility model relates to the technical field of disconnecting switch mechanisms, and more specifically, to a disconnecting switch mechanism and a switching device. Background Technology

[0002] In today's world where electricity is widely used, disconnecting switches are typically installed in circuits to perform closing, opening, and grounding operations in order to ensure safe use of the circuits. When closed, the circuit is connected; when opened, the circuit is disconnected; and when grounded, the circuit is grounded.

[0003] In the existing technology, when the disconnecting switch mechanism performs closing, opening, and grounding, the operator's own experience or external circuits are used to determine whether the disconnecting switch mechanism is in place. This cannot accurately determine whether the mechanism is in place, thus posing a safety hazard. Utility Model Content

[0004] The technical problem solved by this utility model is the inability to accurately determine when the circuit is closed, opened, or grounded, which leads to potential safety hazards.

[0005] The embodiments of this utility model can be implemented as follows:

[0006] This utility model provides an isolating switch mechanism, comprising:

[0007] Installation main body;

[0008] A grounding operating shaft is rotatably connected to the mounting body;

[0009] A grounding transition shaft is sleeved on the grounding operating shaft and can rotate freely relative to the grounding operating shaft;

[0010] The output shaft is drivenly connected to the grounding operation shaft and also to the grounding transition shaft; the output shaft is used to perform closing, opening, and grounding operations.

[0011] A cam structure is fixedly mounted on the grounding transition shaft to rotate with the grounding transition shaft; the cam structure has a protruding supporting portion;

[0012] A closing micro switch is fixedly mounted on the mounting body. The closing micro switch is located near the cam structure, and the side of the closing micro switch facing the cam structure has a first trigger switch.

[0013] When the output shaft performs closing, the abutting part abuts against the first trigger switch; the closing micro switch is configured to emit a first electrical signal when the first trigger switch is abutted, and the first electrical signal is used to indicate that the isolating switch mechanism is in the closed state.

[0014] The advantages of the disconnecting switch mechanism provided by this utility model compared to the prior art include:

[0015] When the disconnecting switch mechanism performs the closing action, the output shaft rotates relative to the mounting body, and the closing action is performed through the output shaft. At the same time, the output shaft drives the cam structure to rotate, which in turn drives the supporting part to rotate synchronously. After the disconnecting switch mechanism completes the closing action, the supporting part abuts against the first trigger switch of the closing micro switch, thereby triggering the closing micro switch to send out the first electrical signal. The operator can determine that the disconnecting switch mechanism has completed the closing action based on the first electrical signal, thus accurately determining that the disconnecting switch mechanism has been closed in place. Based on this, the disconnecting switch mechanism provided by this utility model can improve the problem in the prior art where the operator cannot accurately determine whether the closing action is in place, which leads to safety hazards.

[0016] Optionally, the disconnecting switch mechanism further includes a grounding micro switch, which is fixedly mounted on the mounting body and spaced apart from the closing micro switch; a second trigger switch is provided on the side of the grounding micro switch facing the cam structure; when the output shaft is grounded, the abutting part abuts against the second trigger switch, and the grounding micro switch is configured to emit a second electrical signal when the second trigger switch is abutted, the second electrical signal being used to characterize that the disconnecting switch mechanism is in a grounded state.

[0017] Optionally, the disconnecting switch mechanism further includes a tripping micro switch, which is fixedly mounted on the mounting body. The tripping micro switch is spaced apart from the closing micro switch and the grounding micro switch. A third trigger switch is provided on the side of the tripping micro switch facing the cam structure. When the output shaft performs tripping, the abutment abuts against the third trigger switch. The tripping micro switch is configured to emit a third electrical signal when the third trigger switch is abutted. The third electrical signal is used to indicate that the disconnecting switch mechanism is in the tripping state.

[0018] Optionally, the closing micro switch, the grounding micro switch, and the opening micro switch are arranged around the cam structure, and the opening micro switch is located between the closing micro switch and the grounding micro switch.

[0019] Optionally, the outer periphery of the supporting part has a supporting surface and two guide surfaces; in the rotation direction of the supporting part, the two guide surfaces are respectively located on both sides of the supporting surface, and an arc transition surface is provided between the guide surface and the supporting surface.

[0020] Optionally, the cam structure includes an integrally formed main body and a supporting part, the supporting part being disposed on one side of the main body, the outer contour of the cross-section of the main body being circular, and the guide surface being tangent to the outer side surface of the main body.

[0021] A switching device includes the aforementioned disconnecting switch mechanism.

[0022] The switching device provided by this utility model adopts the above-mentioned isolating switch mechanism. The beneficial effects of this switching device compared with the prior art are the same as the beneficial effects of the above-mentioned isolating switch mechanism compared with the prior art, and will not be repeated here. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the disconnecting switch mechanism provided in the embodiments of this application;

[0025] Figure 2 This is a cross-sectional view of the disconnecting switch mechanism provided in the embodiments of this application;

[0026] Figure 3 This is a cross-sectional view of the cam structure provided in the embodiments of this application.

[0027] Icons: Isolating switch mechanism 10, mounting body 100, grounding operating shaft 200, grounding transition shaft 300, output shaft 400, cam structure 500, supporting part 510, supporting surface 511, guide surface 512, main body part 520, closing micro switch 610, first trigger switch 611, grounding micro switch 620, second trigger switch 621, opening micro switch 630, third trigger switch 631. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0030] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0031] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0032] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0033] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0034] Please refer to the following: Figure 1 and Figure 2 This application provides a disconnecting switch mechanism 10 and a switching device using the disconnecting switch mechanism 10. The disconnecting switch mechanism 10 and the switching device can be applied to a disconnecting switch, which in turn is applied to a circuit. The disconnecting switch mechanism may operate the disconnecting switch to perform closing, opening, and grounding functions. Specifically, when the disconnecting switch mechanism 10 and the switching device perform closing, the circuit is connected; when performing opening, the circuit is disconnected; and when performing grounding, the circuit is grounded. Optionally, the switching device can be a disconnecting switch or other switches composed of a disconnecting switch mechanism. In this embodiment, the disconnecting switch mechanism 10 and the switching device can improve the safety hazards caused by the inability to accurately determine when closing, opening, and grounding are in place in the prior art.

[0035] In this embodiment, the disconnecting switch mechanism 10 includes a mounting body 100, a grounding operating shaft 200, a grounding transition shaft 300, an output shaft 400, a cam structure 500, and a closing micro switch 610. The grounding operating shaft 200 is rotatably connected to the mounting body 100; the grounding transition shaft 300 is sleeved on the grounding operating shaft 200 and can rotate freely relative to the grounding operating shaft 200. The output shaft 400 is drivenly connected to the grounding operating shaft 200 and to the grounding transition shaft 300; the output shaft 400 is used to perform closing, opening, and grounding operations. It is worth noting that in this embodiment, the disconnecting switch mechanism 10 may also include a closing operating shaft, which is rotatably mounted on the mounting body 100 and drivenly connected to the output shaft 400. Optionally, in this embodiment, the grounding operating shaft 200 is used to perform grounding operations, while the closing operating shaft is used to perform closing and opening operations. Alternatively, in this embodiment, after the closing operation shaft performs the closing operation, the grounding operation shaft 200 cannot directly perform the grounding operation. The grounding operation shaft 200 can only perform the grounding operation after the closing operation shaft performs the opening operation. Further, the cam structure 500 is fixedly mounted on the grounding transition shaft 300 to rotate with it; the cam structure 500 has a protruding abutment portion 510. The closing microswitch 610 is fixedly mounted on the mounting body 100, located near the cam structure 500, and has a first trigger switch 611 on the side facing the cam structure 500. When the output shaft 400 performs the closing operation, the abutment portion 510 abuts against the first trigger switch 611; the closing microswitch 610 is configured to emit a first electrical signal when the first trigger switch 611 is abutted, the first electrical signal indicating that the isolating switch mechanism 10 is in the closed state.

[0036] As described above, when the disconnecting switch mechanism 10 performs the closing action, the output shaft 400 rotates relative to the mounting body 100, and the closing action is performed through the output shaft 400. At the same time, the output shaft 400 drives the cam structure 500 to rotate, which in turn drives the supporting part 510 to rotate. After the disconnecting switch mechanism 10 completes the closing action, the supporting part 510 abuts against the first trigger switch 611 of the closing micro switch 610, thereby triggering the closing micro switch 610 to send out the first electrical signal. The operator can judge that the disconnecting switch mechanism 10 has completed the closing action based on the first electrical signal, and can accurately judge that the disconnecting switch mechanism 10 has been closed in place. Based on this, the disconnecting switch mechanism 10 provided by this utility model can improve the problem in the prior art where the operator cannot accurately judge whether the closing is in place, which leads to safety hazards.

[0037] It should be noted that the disconnecting switch mechanism 10 may also include a control device for receiving the first electrical signal. The control device may be equipped with a display device or a prompting device. When the control device receives the first signal, it issues a prompting signal through the display device or the prompting device to prompt the user that the circuit breaker is closed, thereby facilitating accurate judgment of whether the circuit breaker is closed.

[0038] Optionally, in this embodiment, the disconnecting switch mechanism 10 further includes a grounding micro switch 620, which is fixedly mounted on the mounting body 100 and spaced apart from the closing micro switch 610. A second trigger switch 621 is provided on the side of the grounding micro switch 620 facing the cam structure 500. When the output shaft 400 is grounded, the holding part 510 abuts against the second trigger switch 621. The grounding micro switch 620 is configured to emit a second electrical signal when the second trigger switch 621 is abutted. The second electrical signal is used to indicate that the disconnecting switch mechanism 10 is in a grounded state.

[0039] In addition, in this embodiment, the disconnecting switch mechanism 10 also includes a tripping micro switch 630, which is fixedly mounted on the mounting body 100. The tripping micro switch 630 is spaced apart from the closing micro switch 610 and the grounding micro switch 620. A third trigger switch 631 is provided on the side of the tripping micro switch 630 facing the cam structure 500. When the output shaft 400 performs tripping, the holding part 510 abuts against the third trigger switch 631. The tripping micro switch 630 is configured to emit a third electrical signal when the third trigger switch 631 is abutted. The third electrical signal is used to indicate that the disconnecting switch mechanism 10 is in the tripping state.

[0040] In other words, a closing microswitch 610, a grounding microswitch 620, and a opening microswitch 630 can be simultaneously installed on the main installation body 100 to generate a first electrical signal, a second electrical signal, and a third electrical signal respectively when closing, opening, and grounding occur. The control device can receive these first, second, and third electrical signals and issue corresponding prompt signals upon receiving them to indicate to the operator that the operation has been completed. Therefore, the installation of the closing microswitch 610, the opening microswitch 630, and the grounding microswitch 620 helps the operator accurately determine whether closing, opening, and grounding are complete, thereby avoiding safety hazards caused by inaccurate judgments.

[0041] It should be understood that in other embodiments of this application, one or both of the tripping microswitch 630 and the grounding microswitch 620 may be omitted.

[0042] In this embodiment, the closing microswitch 610, the grounding microswitch 620, and the opening microswitch 630 are arranged around the cam structure 500, with the opening microswitch 630 located between the closing microswitch 610 and the grounding microswitch 620. When the grounding operation shaft 200 or the closing operation shaft is operated, power is output to the output shaft 400 to rotate it. The output shaft 400 can achieve closing, opening, and grounding respectively at different rotation angles. Based on this, by placing the closing microswitch 610, the grounding microswitch 620, and the opening microswitch 630 in different positions and arranging them around the cam structure 500, they can correspond to the positions where the output shaft 400 performs different functions. This allows the output shaft 400 to abut against the closing microswitch 610, the opening microswitch 630, and the grounding microswitch 620 respectively via the abutment part 510 during closing, opening, and grounding.

[0043] Generally, within the rotational stroke range of the output shaft 400, the closing position and the grounding position are located at the two ends of the stroke range, while the opening position is located in the middle of the stroke range. Based on this, the opening micro switch 630 is located in the middle of the closing micro switch 610 and the grounding micro switch 620, so that the closing position, the opening position, and the grounding position correspond one-to-one with the closing micro switch 610, the opening micro switch 630, and the grounding micro switch 620, respectively.

[0044] In this embodiment, please refer to the following: Figure 2 and Figure 3 The supporting part 510 has a supporting surface 511 and two guide surfaces 512 on its outer periphery. In the rotation direction of the supporting part 510, the two guide surfaces 512 are located on both sides of the supporting surface 511, and an arc transition surface is provided between the guide surface 512 and the supporting surface 511. By setting the arc transition surface, the first trigger switch 611 can slide smoothly between the guide surface 512, the arc transition surface and the supporting surface 511, ensuring that the closing micro switch 610, the opening micro switch 630 and the grounding micro switch 620 are not damaged, and extending the service life of the closing micro switch 610, the opening micro switch 630 and the grounding micro switch 620.

[0045] Taking the cooperation between the abutment part 510 and the first trigger switch 611 as an example, during the rotation of the cam structure 500 following the output shaft 400, the abutment part 510 first contacts the first trigger switch 611 through one of the guide surfaces 512; as the cam structure 500 continues to rotate, the first trigger switch 611 slides on the guide surface 512 and gradually approaches the abutment surface 511. At the same time, since the abutment part 510 is in a convex state, it will gradually press down on the first trigger switch 611; when the cam structure 500 rotates to the point where the abutment surface 511 contacts the first trigger switch 611, the degree of pressing down on the first trigger switch 611 is the highest, realizing the triggering of the closing micro switch 610, and the closing micro switch 610 sends out the first electrical signal. During the process from closing to opening, the first trigger switch 611 moves off the abutment surface 511 and onto the guide surface 512, gradually moving away from the abutment surface 511. This causes the first trigger switch 611 to gradually return to its original state until the abutment part 510 is completely separated from the first trigger switch 611. Similarly, when the second trigger switch 621 and the third trigger switch 631 are pressed down or disengaged, the cam structure 500 and the abutment part 510 perform the same actions as described above, which will not be repeated here.

[0046] Optionally, in this embodiment, the cam structure 500 includes an integrally formed main body 520 and a supporting part 510. The supporting part 510 is disposed on one side of the main body 520. The outer contour of the cross-section of the main body 520 is circular, and the guide surface 512 is tangent to the outer side of the main body 520. In this embodiment, the main body 520 is sleeved on the grounding transition shaft 300, while the supporting part 510 is disposed on the outer side of the main body 520. To ensure synchronous rotation of the main body 520 and the grounding transition shaft 300, the cross-section of the inner contour of the main body 520 is non-circular. Similarly, the cross-section of the part of the grounding transition shaft 300 that mates with the main body 520 is non-circular, and the two have the same shape. In this embodiment, the cross-section of the inner contour of the main body 520 is a shape composed of two arcs and two straight lines; similarly, the outer contour of the cross-section of the grounding transition shaft 300 is a shape formed by two arcs and two straight lines. It should be understood that in other embodiments, the main body 520 and the ground transition shaft 300 may also adopt other shapes. In addition, having the guide surface 512 tangent to the outer contour of the main body 520 facilitates the fabrication of the cam structure 500, and also facilitates the smooth movement of the first trigger switch 611 onto the guide surface 512 when it contacts the outer contour of the main body 520.

[0047] In summary, in the disconnecting switch mechanism 10 and switching device provided in this embodiment, when the disconnecting switch mechanism 10 performs the closing action, the output shaft 400 rotates relative to the mounting body 100, and the closing action is performed through the output shaft 400. At the same time, the output shaft 400 drives the cam structure 500 to rotate, which in turn drives the supporting part 510 to rotate. After the disconnecting switch mechanism 10 completes the closing action, the supporting part 510 abuts against the first trigger switch 611 of the closing micro switch 610, thereby triggering the closing micro switch 610 to send out the first electrical signal. The operator can judge that the disconnecting switch mechanism 10 has completed the closing action based on the first electrical signal, and can accurately judge that the disconnecting switch mechanism 10 has been closed in place. Based on this, the disconnecting switch mechanism 10 provided by this utility model can improve the problem in the prior art where the operator cannot accurately judge whether the closing action is in place, which leads to safety hazards. Furthermore, a closing microswitch 610, a grounding microswitch 620, and a opening microswitch 630 are simultaneously installed on the main installation body 100 to generate a first electrical signal, a second electrical signal, and a third electrical signal respectively when closing, opening, and grounding occur. The control device can receive these first, second, and third electrical signals and issue corresponding prompt signals upon receiving them to indicate to the operator that the operation has been completed. Therefore, the installation of the closing microswitch 610, the opening microswitch 630, and the grounding microswitch 620 helps the operator accurately determine whether closing, opening, and grounding are complete, thereby avoiding safety hazards caused by inaccurate judgments.

[0048] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A disconnector switch mechanism, characterized in that, include: Install the main body (100); A grounding operating shaft (200) is rotatably connected to the mounting body (100). A grounding transition shaft (300) is sleeved on the grounding operating shaft (200) and can rotate freely relative to the grounding operating shaft (200); The output shaft (400) is drivenly connected to the grounding operation shaft (200) and the grounding transition shaft (300); the output shaft (400) is used to perform closing, opening and grounding. A cam structure (500) is fixedly mounted on the grounding transition shaft (300) to rotate with the grounding transition shaft (300); the cam structure (500) has a protruding abutment (510). A closing micro switch (610) is fixedly mounted on the mounting body (100). The closing micro switch (610) is located near the cam structure (500), and the closing micro switch (610) has a first trigger switch (611) on the side facing the cam structure (500). When the output shaft (400) performs closing, the abutment (510) abuts against the first trigger switch (611); the closing micro switch (610) is configured to emit a first electrical signal when the first trigger switch (611) is abutted, the first electrical signal being used to indicate that the isolating switch mechanism (10) is in the closed state.

2. The disconnecting switch mechanism according to claim 1, characterized in that, The disconnecting switch mechanism (10) further includes a grounding micro switch (620), which is fixedly mounted on the mounting body (100) and spaced apart from the closing micro switch (610). A second trigger switch (621) is provided on the side of the grounding micro switch (620) facing the cam structure (500). When the output shaft (400) is grounded, the abutment (510) abuts against the second trigger switch (621). The grounding micro switch (620) is configured to emit a second electrical signal when the second trigger switch (621) is abutted. The second electrical signal is used to indicate that the disconnecting switch mechanism (10) is in a grounded state.

3. The disconnecting switch mechanism according to claim 2, characterized in that, The disconnecting switch mechanism (10) further includes a tripping micro switch (630), which is fixedly mounted on the mounting body (100). The tripping micro switch (630) is spaced apart from the closing micro switch (610) and the grounding micro switch (620). A third trigger switch (631) is provided on the side of the tripping micro switch (630) facing the cam structure (500). When the output shaft (400) performs tripping, the abutment (510) abuts against the third trigger switch (631). The tripping micro switch (630) is configured to emit a third electrical signal when the third trigger switch (631) is abutted. The third electrical signal is used to indicate that the disconnecting switch mechanism (10) is in the tripping state.

4. The disconnecting switch mechanism according to claim 3, characterized in that, The closing micro switch (610), the grounding micro switch (620), and the opening micro switch (630) are arranged around the cam structure (500), and the opening micro switch (630) is located between the closing micro switch (610) and the grounding micro switch (620).

5. The disconnecting switch mechanism according to claim 3, characterized in that, The outer periphery of the abutting part (510) has an abutting surface (511) and two guide surfaces (512); in the rotation direction of the abutting part (510), the two guide surfaces (512) are respectively located on both sides of the abutting surface (511), and an arc transition surface is provided between the guide surface (512) and the abutting surface (511).

6. The disconnector mechanism according to claim 5, characterized in that, The cam structure (500) includes an integrally formed main body (520) and a supporting part (510). The supporting part (510) is located on one side of the main body (520). The outer contour of the cross section of the main body (520) is circular. The guide surface (512) is tangent to the outer side surface of the main body (520).

7. A switching device, characterized in that, Includes the disconnecting switch mechanism (10) as described in any one of claims 1-6.

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