Interlocking mechanism and electric device

Abstract

The utility model provides an interlocking mechanism. The interlocking mechanism comprises a fixed part; the shifting rod can be pivotally mounted to the fixed part and comprises an actuating part; the actuating part of the shifting rod is matched with one end of the pull rod assembly, so that the pivoting movement of the shifting rod can enable the pull rod assembly to move between a blocking position and an avoiding position in the first direction, and the other end of the pull rod assembly is far away from the shifting rod and comprises a limiting part; and a slide plate assembly configured to move in a second direction transverse to the first direction. When the pull rod assembly is located at the blocking position, the limiting part blocks the sliding plate assembly from moving in the second direction; when the pull rod assembly is located at the avoiding position, the limiting part avoids the sliding plate assembly so that the sliding plate assembly can freely move in the second direction. The utility model further discloses an electrical device comprising the interlocking mechanism.

Description

Technical Field

[0001] The present disclosure relates to the electrical field, and in particular to an interlocking mechanism and an electrical device including the interlocking mechanism. Background Art

[0002] In conventional GIS (gas-insulated switchgear), when the ground loop is active, the disconnector is typically open, allowing the cable compartment door to be opened. Once the cable compartment door is open, temporary measures may be necessary to disconnect the ground loop in certain circumstances (such as testing cable insulation performance before equipment installation and commissioning). This involves opening the circuit breaker or both the circuit breaker and grounding switch. In these situations, conventional interlocking logic allows the disconnector to operate. However, closing the disconnector exposes the busbar to voltage, which, with the cable compartment door open, could cause equipment damage or even personal injury.

[0003] Therefore, in order to solve the safety problem of closing the disconnector while the cable room door is open, a mechanism with excellent performance is needed to solve these problems. Utility Model Content

[0004] The purpose of the present disclosure is to at least solve the shortcomings existing in the prior art. The present disclosure proposes an interlocking mechanism, which includes a fixed part; a lever, which can be pivotally mounted to the fixed part and includes an actuating part; a pull rod assembly, the actuating part of the lever cooperates with one end of the pull rod assembly, so that the pivotal movement of the lever can cause the pull rod assembly to move between a blocking position and an avoidance position along a first direction, and the other end of the pull rod assembly is away from the lever and includes a limiting part; a slide plate assembly, which is configured to move in a second direction transverse to the first direction.

[0005] When the pull rod assembly is located at the blocking position, the limiting portion blocks the slide plate assembly from moving along the second direction; when the pull rod assembly is located at the avoiding position, the limiting portion avoids the slide plate assembly so that the slide plate assembly can move freely along the second direction.

[0006] For example, according to some embodiments of the present disclosure, the interlocking mechanism further includes a return spring, two ends of which are respectively connected to the fixing portion and the pull rod assembly to bias the pull rod assembly to a blocking position or an avoidance position.

[0007] For example, according to some embodiments of the present disclosure, the interlocking mechanism further includes a torsion spring, which is disposed at the shifting rod to bias the shifting rod to a position corresponding to a biased position of the pull rod assembly.

[0008] For example, according to some embodiments of the present disclosure, the return spring biases the pull rod assembly in the blocking position.

[0009] For example, according to some embodiments of the present disclosure, the first direction is perpendicular to the second direction.

[0010] For example, according to some embodiments of the present disclosure, the tie rod assembly includes a plurality of detachable tie rods.

[0011] The present disclosure further provides an electrical device comprising the interlock mechanism described in any of the aforementioned embodiments; a door panel disposed adjacent to the lever, wherein the lever is pivoted upon opening and closing the door panel; and an operating portion disposed adjacent to the slide assembly. The slide assembly is configured to move in a second direction between an operating position and a covering position. When the slide assembly is in the covering position, the slide assembly covers the operating portion to prevent it from being operated. When the slide assembly is in the operating position, the operating portion is exposed and can be operated.

[0012] For example, according to some embodiments of the present disclosure, when the door panel is open, the pull rod assembly is located at the blocking position, and the door panel is blocked at the covering position; when the door panel is closed, the pull rod assembly is located at the avoiding position.

[0013] For example, according to some embodiments of the present disclosure, the operating portion is configured to perform a closing or opening operation on a disconnector of the electrical device, and the door panel is configured to open and close a cable compartment of the electrical device.

[0014] For example, according to some embodiments of the present disclosure, the electrical device is a gas-insulated enclosed switchgear. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A perspective schematic diagram showing a partial structure of an electrical device including an interlocking mechanism according to an embodiment of the present disclosure;

[0016] Figure 2 A perspective schematic diagram showing an interlocking mechanism according to an embodiment of the present disclosure

[0017] Figure 3 A partial enlarged view showing the cooperation between the shift lever and the pull rod assembly according to an embodiment of the present disclosure;

[0018] Figure 4 A partial enlarged view showing the cooperation between the skateboard assembly and the pull rod assembly according to an embodiment of the present disclosure is shown.

[0019] Reference numerals

[0020] 1 fixed part,

[0021] 2 levers,

[0022] 21 actuator,

[0023] 3 tie rod assembly,

[0024] 31 First pull rod,

[0025] 32 The second pull rod,

[0026] 33 limit part,

[0027] 34 hook,

[0028] 4 skateboard components,

[0029] 5 return spring,

[0030] 6 torsion springs,

[0031] 7. Operation Department,

[0032] 8 door panels,

[0033] D1 first direction,

[0034] D2 Second direction DETAILED DESCRIPTION

[0035] In order to make the purpose, scheme and advantages of the technical solution of the present disclosure more clear, the technical solution of the embodiment of the present disclosure will be clearly and completely described below in conjunction with the drawings of the specific embodiment of the present disclosure. Unless otherwise specified, the terms used herein have the common meanings in the art. The same reference numerals in the drawings represent the same components.

[0036] In the description of this disclosure, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this disclosure based on the specific circumstances.

[0037] In the present disclosure, the movement direction of the pull rod assembly is designated as the first direction D1, and the movement direction of the slide plate assembly is designated as the second direction D2. Figure 1 As shown in .

[0038] The present disclosure provides an interlocking mechanism for interlocking the movement of a door panel and a slide assembly. In particular, the interlocking mechanism is applied to an electrical device, for example, the door panel is used to close a cable room and the slide assembly is used to shield an operating portion of a disconnector.

[0039] like Figure 1 and Figure 2 As shown, the interlocking mechanism according to the present disclosure includes a fixing portion 1, a lever 2, a pull rod assembly 3 and a slide assembly 4. Figure 1The solid line part shows the interlocking mechanism, and the dotted line part shows other components outside the interlocking mechanism (such as the operating part 8). In this disclosure, the fixed and static components are collectively referred to as the fixed part 1, which is used to install and support the other moving components. Figure 1 and Figure 2 As shown, the lever 2 and the slide assembly 4 can be mounted on either end of a pull rod assembly 3. The pull rod assembly 3 serves to connect the two components at different locations. The pull rod assembly 3 can be configured to move in a first direction D1, for example, to transmit the movement of the lever 2 to the slide assembly 4, thereby obstructing or avoiding the movement of the slide assembly 4.

[0040] The tie rod assembly 3 may be as follows Figure 2 The elongated rod shape shown extending along the first direction D1 may also be a curved or multi-section bent shape. For example, the pull rod assembly 3 may also include a plurality of sub-pull rods, such as Figure 2 The diagram shows a first sub-tie rod 31 and a second sub-tie rod 32 connected by a pin. In particular, these sub-tie rods are detachable, thereby facilitating transportation. They can also be specifically assembled according to the distance between the lever 2 and the slide assembly 4 or the specific structural arrangement within the electrical device, so as to be used for various types of electrical devices.

[0041] Furthermore, if Figure 3 As shown, the lever 2 is pivotally mounted to the fixing portion 1, and the lever 2 is formed by the door panel 8 ( Figure 3 The door panel 8 is only shown in the figure) and is dialed so that the dial lever 2 is pivoted. Specifically, the opening operation and the closing operation of the door panel 8 can dial the plate lever 2 to pivot to different positions.

[0042] The lever 2 includes an actuating portion 21, which is used to cooperate with one end of the pull rod assembly 3, so that the pivoting movement of the lever 2 can drive the pull rod assembly 3 to move along the first direction D1, for example, between the blocking position and the avoidance position. Figure 3 As shown, a hook portion 34 is provided at one end of the first sub-rod 31 away from the second sub-rod 32. The actuating portion 21 is a protrusion that inserts into the hook portion 34. The pivoting of the actuating portion 21 about the pivot center of the lever 2 drives the hook portion 34 to move. The lever assembly 3 can be configured to move in a first direction D1. Thus, opening and closing the door panel 8 drives the lever 2 to pivot, thereby driving the lever assembly 3 to move in the first direction D1 between the blocking position and the avoidance position.

[0043] The slide assembly 4 is configured to move in a second direction D2 that is transverse to the first direction D1. For example, the first direction D1 may be perpendicular to the second direction D2. In particular, the slide assembly 4 is configured to switch between an operating position and a covering position along the second direction D2. The slide assembly 4 is used to protect the operating portion 7. Specifically, as Figure 1 As shown, when the slide assembly 4 is located at the covering position, the slide assembly 4 covers the operating portion 7 to prevent the operating portion 7 from being operated. When the slide assembly 4 is located at the operating position, the operating portion 7 is exposed and can be operated.

[0044] like Figure 4 As shown, the end of the pull rod assembly 3 away from the hook portion 34 can be provided with a limiting portion 33, and the limiting portion 23 is configured to block the slide assembly 4 ( Figure 3 Only a portion of the slide assembly 4 is shown in the figure. Specifically, when the rod assembly 3 is in the blocking position, the limiting portion 33 blocks interference with the slide assembly 4 in the second direction D2. When the rod assembly 3 is in the avoiding position, the limiting portion 33 moves away in the first direction D1 to avoid interference, allowing the slide assembly 4 to move freely in the second direction D2.

[0045] Therefore, according to the interlocking device disclosed in the present invention, the opening and closing state of the door panel 8 can be linked to the covering state of the slide assembly 4, thereby realizing the interlocking of the door panel 8 and the operation object of the operating part 7.

[0046] Specifically, the interlocking device is configured such that opening the door panel 8 causes the lever 2 to pivot, causing the pull rod assembly 3 to switch to the blocking position, while closing the door panel 8 causes the lever 2 to pivot, causing the pull rod assembly 3 to switch to the avoidance position. Thus, when the door panel 8 is open, the operating portion 7 is blocked, preventing it from being operated; and when the door panel 8 is closed, the operating portion 7 is exposed, allowing it to be operated.

[0047] For example, the door panel 8 is configured to open and close the cable compartment of an electrical device, and the operating unit 7 is configured to close or open the disconnector (not shown) of the electrical device. In particular, the electrical device is a gas-insulated switchgear (GIS). This interlocking mechanism allows the cable compartment door and disconnector to be closed when the cable compartment is closed, but prohibited when the cable compartment is open. This facilitates the protection of equipment and personnel during cable insulation performance testing prior to installation and commissioning.

[0048] Furthermore, the interlocking mechanism may also include a return spring 5 for the barrier assembly 3 and / or a torsion spring 6 for the detent lever 2 to further enhance the interlocking mechanism's stability and safety. Specifically, the return spring 5 can be connected at both ends to the fixed portion 1 and the pull rod assembly 3, respectively, to bias the pull rod assembly 3 into a blocking position or a reversing position. The torsion spring 6 can be installed on the detent lever 2 to bias the detent lever 2 to a position corresponding to the biased position of the pull rod assembly 3. This allows the door panel to move the detent lever 2 away from its biased position, and in turn, the pull rod assembly 3 back to its biased position away from the biased position. Both can then be reset without force, and the biasing effects of the return spring 5 and the detent lever 2 do not oppose each other. This further benefits the door panel 8 by enabling bidirectional movement of the detent lever 2 with only a unidirectional force applied to the detent lever 2 (e.g., one direction of movement is achieved by pressure from the door panel 8, and the reverse direction is achieved by the force of the torsion spring 6). This also applies to the detent lever 2 and the pull rod assembly 3.

[0049] Further, for example, the return spring 5 can bias the pull rod assembly 3 in the blocking position, thereby Figure 3 As shown, the actuator 21 only needs to apply a force to the hook portion 34, for example, directed from the stop portion 33 toward the hook portion 34. This force can drive the pull rod assembly 3 from the blocking position to the avoidance position. The elastic force of the return spring 5 can cause the pull rod assembly 3 to return from the avoidance position to the blocking position when the lever is reset. In this case, closing the door panel 8 requires overcoming the torsion spring 6. When opening the door panel 8, the torsion spring 6 causes the lever 2 to pivot and return. This arrangement sets the blocking position as a biased position. Even if the interlocking mechanism fails, the operating portion is always shielded, further enhancing the safety of the electrical device and the stability of the interlocking mechanism.

[0050] The present disclosure also proposes an electrical device, which may include a door panel 8, an operating portion 7, an isolating switch, and the above-mentioned interlocking mechanism. The door panel 8 can be configured to open and close a cable chamber (not shown) of the electrical device, and is, for example, disposed adjacent to the lever 2 so that the opening and closing of the door panel causes the lever to pivot. The operating portion 7 is disposed adjacent to the slide assembly 4, and as described above, can be used to close and open the isolating switch. The slide assembly 4 of the interlocking mechanism is used to protect the operating portion 7. As described above, when the slide assembly 4 is in the covering position, the slide assembly 4 covers the operating portion 7 to prevent the operating portion 7 from being operated. When the slide assembly 4 is in the operating position, the operating portion 7 is exposed and can be operated.

[0051] Therefore, according to the electrical device disclosed in the present invention, the opening and closing state of the door panel 8 can be linked to the covering state of the slide assembly 4, thereby realizing the interlocking of the door panel 8 and the operating object of the operating part 7. Specifically, when the door panel 8 is open, the operating part 7 is blocked to prevent the operating part 7 from being operated; when the door panel 8 is closed, the operating part 7 is exposed to allow the operating part 7 to be operated. In this way, the interlocking of the cable room door and the isolating switch can be achieved, so that when the cable room is closed, the isolating switch can be closed, and when the cable room is open, the isolating switch is prohibited from being closed. This is beneficial for protecting equipment and personnel when testing the insulation performance of cables before the equipment is installed and put into operation.

[0052] In particular, the electrical device according to the present disclosure may also be an electrical device other than the gas-insulated enclosed switchgear, including a cable room (or other chamber) and a disconnector (or other switch or other operated object).

[0053] It should be understood that the above description is intended to be illustrative and not restrictive. For example, the above-described embodiments (and / or aspects thereof) may be used in combination with one another. In addition, many modifications may be made to adapt a particular situation or material to the teachings of this disclosure without departing from the scope of this disclosure. The functions or performance of the various elements or modules described herein are intended to be illustrative only and are in no way restrictive, but are merely exemplary embodiments. Upon reading the above description, many other embodiments and modifications within the spirit and scope of the claims will be apparent to those skilled in the art. Therefore, the scope of this disclosure should be determined by reference to the appended claims and the full scope of equivalents to which such claims are entitled.

[0054] In the following claims, the terms “including” and “in which” are used as the plain-English equivalents of the respective terms “comprising” and “wherein.” Moreover, in the following claims, the terms “first,” “second,” and “third,” etc. are used merely as labels and are not intended to impose numerical requirements on their objects.

Claims

1. An interlocking mechanism, characterized in that: include Fixed part, a lever pivotally mounted to the fixed portion and comprising an actuating portion, A pull rod assembly, wherein the actuating portion of the lever cooperates with one end of the pull rod assembly so that the pivotal movement of the lever can cause the pull rod assembly to move between a blocking position and an avoidance position along a first direction, and the other end of the pull rod assembly is away from the lever and includes a limit portion. a slide assembly configured to move in a second direction transverse to the first direction, When the pull rod assembly is located at the blocking position, the limiting portion blocks the slide assembly from moving in the second direction. When the pull rod assembly is located at the avoidance position, the limiting portion avoids the slide assembly so that the slide assembly can move freely along the second direction.

2. The interlocking mechanism according to claim 1, wherein: Also includes The return spring has two ends respectively connected to the fixing portion and the pull rod assembly to bias the pull rod assembly to a blocking position or an avoiding position.

3. The interlocking mechanism according to claim 2, wherein: Also includes A torsion spring is provided at the shift lever to bias the shift lever to a position corresponding to a biased position of the pull rod assembly.

4. The interlocking mechanism according to claim 2 or 3, characterized in that: The return spring biases the drawbar assembly in a blocking position.

5. The interlocking mechanism according to claim 1, wherein: The first direction is perpendicular to the second direction.

6. The interlocking mechanism according to claim 1, wherein: The tie rod assembly includes a plurality of detachable sub-tie rods.

7. An electrical device, characterized in that: include The interlocking mechanism according to any one of claims 1 to 6, A door panel is arranged adjacent to the lever, and the opening and closing of the door panel causes the lever to pivot. An operating portion is provided adjacent to the slide assembly. The slide assembly is configured to move between an operating position and a covering position along a second direction. When the slide assembly is located at the covering position, the slide assembly covers the operating portion to prevent the operating portion from being operated. When the slide assembly is located at the operating position, the operating portion is exposed and can be operated.

8. The electrical device according to claim 7, characterized in that When the door panel is opened, the pull rod assembly is located at the blocking position, and the door panel is blocked at the covering position. When the door panel is closed, the pull rod assembly is located in the avoidance position.

9. The electrical device according to claim 8, characterized in that The operating portion is configured to perform a closing or opening operation on the disconnector of the electrical device, and the door panel is configured to open and close the cable chamber of the electrical device.

10. The electrical device according to any one of claims 7 to 9, characterized in that: The electrical device is a gas-insulated enclosed switchgear.

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