Interlocking mechanism and electric device

Abstract

The utility model provides an interlocking mechanism. The interlocking mechanism comprises a fixed shell; the first state piece can be switched between a first position and a second position; the second state piece can be switched between a locking position and a releasing position; the sliding plate is configured to move in the first direction relative to the fixed shell. Wherein when the first state piece is located at the first position and the second state piece is located at the locking position, the sliding plate is prevented from moving in the first direction; when the first state piece is located at the first position and the second state piece is located at the release position, the sliding plate can move in the first direction; when the first state piece is located at the second position, the sliding plate can move in the first direction. The utility model further provides an electrical device which comprises the interlocking mechanism. When the circuit breaker is switched on, the first state piece is located at a first position, and when the circuit breaker is switched off, the first state piece is located at a second position; and the operation part is arranged close to the sliding plate.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the electrical field, in particular to an interlocking mechanism and an electrical device comprising the same. BACKGROUND

[0002] For some electrical devices, such as gas insulated switchgear, if the main circuit grounding function is realized, the conventional operation is to ground the switch and then step by step to close the circuit breaker to realize. The applicant proposes a concept of linkage between the grounding switch and the circuit breaker, and develops a complete set of implementation device. This function can ensure the completeness and automation of the grounding circuit connection and disconnection operation. To connect the grounding circuit, the circuit breaker must be reliably triggered by closing the grounding switch, and the grounding switch is closed before the circuit breaker. To disconnect the grounding circuit, the circuit breaker must be triggered by opening the grounding switch, and the grounding switch is opened later than the circuit breaker. The electrical device with automatic linkage function can realize the automatic linkage of the grounding switch opening and closing action triggering the circuit breaker opening and closing action.

[0003] According to the electrical device with automatic linkage function, in the case of connecting the grounding circuit, the circuit breaker must be reliably triggered by closing the grounding switch; in the case of disconnecting the grounding circuit, when the circuit breaker is in the closed state for the purpose of connecting the grounding circuit, the grounding switch is allowed to be operated to trigger the circuit breaker to open. Another common working condition is that the circuit breaker is closed for the purpose of connecting the grounding circuit, and the grounding switch is not allowed to be operated for safety needs and the self-function operation logic of the device when the circuit breaker is in the closed position.

[0004] Therefore, the electrical device with automatic linkage function needs to be interlocked to prevent undesirable operation of the electrical device in certain situations, causing damage to the device and personal injury. CONTENT OF THE INVENTION

[0005] The purpose of the present disclosure is to at least solve the shortcomings in the prior art, and the present disclosure proposes an interlocking mechanism comprising a fixed housing, a first state piece capable of switching between a first position and a second position, a second state piece capable of switching between a locked position and a released position, and a sliding plate configured to move in a first direction relative to the fixed housing. Wherein, when the first state piece is in the first position, the sliding plate is prevented from moving in the first direction when the second state piece is in the locked position; when the first state piece is in the first position, the sliding plate can move in the first direction when the second state piece is in the released position; and when the first state piece is in the second position, the sliding plate can move in the first direction.

[0006] For example, according to some embodiments of the present disclosure, the interlocking mechanism further comprises a limiting member configured to switch between a limiting position and a avoiding position; a coupling assembly coupling the limiting member and the first status member, such that when the first status member is in the first position, the limiting member is in the limiting position, and when the first status member is in the second position, the limiting member is in the avoiding position; a locking assembly comprising the second status member, the locking assembly cooperating with the limiting member such that, when the limiting member is in the avoiding position, the locking assembly allows the slide plate to move in the first direction; when the limiting member is in the limiting position, the locking assembly prevents the slide plate from moving in the first direction when the second status member is in the locking position; and the locking assembly allows the slide plate to move in the first direction when the second status member is in the releasing position.

[0007] For example, according to some embodiments of the present disclosure, the locking assembly comprises a pivot portion pivotally mounted to the fixed housing about the pivot axis. When the limiting member is in the avoiding position, the pivot portion is able to pivot.

[0008] When the limiting member is in the limiting position, the pivot portion is locked when the second status member is in the locking position, and the pivot portion is able to pivot when the limiting member is in the limiting position and the second status member is in the releasing position.

[0009] When the pivot portion is able to pivot, the pivot portion allows the slide plate to move in the first direction, and when the pivot portion is locked, the pivot portion blocks the slide plate from moving in the first direction.

[0010] For example, according to some embodiments of the present disclosure, the locking assembly further comprises a blocking portion, and the second status member is pivotally mounted to the blocking portion, wherein when the second status member is in the locking position, the blocking portion moves synchronously with the pivot portion, and when the second status member is in the releasing position, the pivot portion is able to move relative to the blocking portion.

[0011] For example, according to some embodiments of the present disclosure, the limiting member comprises a limiting slot, the limiting slot comprises a limiting section and an avoiding section, the slot width of the avoiding section is wider than the limiting section, and the blocking portion comprises a protruding portion extending into the limiting slot.

[0012] When the limiting member is in the limiting position, the protruding portion is in the limiting section, limiting the blocking portion from pivoting about the pivot axis, and when the limiting member is in the avoiding position, the protruding portion is in the avoiding section, allowing the blocking portion to pivot about the pivot axis.

[0013] For example, according to some embodiments of the present disclosure, the second status piece is provided with a slot in the circumferential direction, and the pivoting part is provided with an interference part matched with the slot.

[0014] When the second status piece is pivoted to the release position, the slot faces the interference part, the interference part can extend into the slot so that the pivoting part can move relative to the blocking part, thereby the pivoting part can be pivoted relative to the blocking part around the pivoting shaft,

[0015] When the second status piece is pivoted to the locking position, the slot is misaligned with the interference part so that the interference part abuts against the second status piece, the pivoting part can only move synchronously with the blocking part, and the locking assembly can be pivoted as a whole around the pivoting shaft.

[0016] For example, according to some embodiments of the present disclosure, the coupling assembly comprises

[0017] a pinning cam, which moves synchronously with the first status piece,

[0018] a pivoting connector, which is pivotally mounted to the fixed shell, and is connected to the limiting piece, the pivoting of the pivoting connector drives the linear movement of the limiting piece between the limiting position and the avoiding position,

[0019] a transmission piece, one end of which is connected to the pinning cam, and the other end of which is connected to the pivoting connector, the pivoting of the pinning cam drives the linear movement of the transmission piece, and in turn the transmission piece drives the pivoting of the pivoting connector.

[0020] For example, according to some embodiments of the present disclosure, the linear movement direction of the transmission piece is perpendicular to the linear movement direction of the limiting piece.

[0021] The present disclosure also proposes an electrical device, which comprises the interlocking mechanism according to any one of the embodiments of the present disclosure, a circuit breaker, which causes the first status piece to be located at the first position when the circuit breaker is closed, and to be located at the second position when the circuit breaker is opened, and an operating part, which is arranged adjacent to the sliding plate.

[0022] The sliding plate is configured to move along the first direction between an operating position and a covering position, when the sliding plate is located at the covering position, the operating part is covered to prevent the operating part from being operated, and when the sliding plate is located at the operating position, the operating part is exposed and can be operated.

[0023] For example, according to some embodiments of the present disclosure, the electrical device further comprises a grounding switch, and the operating part is configured to be used for closing or opening operation of the grounding switch.

[0024] For example, according to some embodiments of the present disclosure, the second status piece is caused to move to a release position when the grounding switch is closed,

[0025] The second status piece is caused to move to a lock position when the grounding switch is opened.

[0026] For example, according to some embodiments of the present disclosure, the electrical device is a gas insulated switchgear. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 A perspective view showing a partial structure of an electrical device including an interlocking mechanism according to an embodiment of the present disclosure;

[0028] Figure 2 A perspective view showing a partial structure of an electrical device including an interlocking mechanism according to an embodiment of the present disclosure; Figure 1

[0029] Figure 3a An enlarged view showing a cooperation of a limiting groove and a protruding part at one side of the limiting piece, Figure 3b An enlarged view showing a cooperation of a limiting groove and a protruding part at one side of the limiting piece,

[0030] wherein the limiting piece is located at a release position;

[0031] Figure 4a An enlarged view showing a cooperation of a limiting groove and a protruding part at one side of the limiting piece, Figure 4b An enlarged view showing a cooperation of a limiting groove and a protruding part at one side of the limiting piece,

[0032] Figure 5a An enlarged view showing a cooperation of a limiting groove and a protruding part at one side of the limiting piece, Figure 5b An enlarged view showing a cooperation of a limiting groove and a protruding part at one side of the limiting piece,

[0033] Figure 6 A slot and a protruding part are shown.

[0034] REFERENCE NUMERALS

[0035] 1 first status piece, 2 second status piece, 21 slot, 3 fixed housing, 4 sliding plate,

[0036] 5 limiting piece, 51 limiting groove, 511 limiting section, 512 release section,

[0037] 6 coupling assembly, 61 nail belt cam, 62 pivot connecting piece, 63 transmission piece,

[0038] ​7. Locking assembly, 71. Pivoting part, 711. Interference part, 72. Blocking part, 721. Protrusion, 73. Pivoting shaft. Detailed Implementation

[0039] To make the objectives, solutions, and advantages of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Unless otherwise stated, the terms used herein have their ordinary meanings in the art. The same reference numerals in the drawings represent the same parts.

[0040] In the description of this disclosure, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0041] In this disclosure, the direction of motion of the skateboard is designated as the first direction D1. The fixed housing 3 in this disclosure refers to a plurality of stationary components used to provide support or to mount other moving parts.

[0042] This disclosure proposes an interlocking mechanism for electrical installations, comprising a first state element 1 (such as...) Figure 1 (as shown) and second state member 2 (as shown) Figure 3b , 4b As shown in Figure 5b), the first state element 1 and the second state element 2 are respectively connected to the circuit breaker (not shown) and the grounding switch (not shown) of the electrical device, so that the first state element 1 and the second state element 2 switch states according to the open and closed states of the circuit breaker and the grounding switch, respectively. Specifically, when the circuit breaker is closed, the first state element 1 is in the first position; when the circuit breaker is open, the first state element 1 is in the second position. Figure 2 The arc-shaped arrow at the first state element 1 indicates the direction of movement from the second position to the first position. When the grounding switch is closed, it causes the second state element 2 to move to the release position (e.g., Figure 5b As shown); when the grounding switch is tripped, the second state element 2 moves to the locked position (as shown). Figure 3b and 4b (As shown).

[0043] The interlocking mechanism of the present disclosure controls whether the sliding plate 4 can move through the state combination of the first state piece 1 and the second state piece 2 in a mechanical structure. The sliding plate 4 is used to realize protection of an operating part (not shown), and the sliding plate 4 can move relative to the fixed housing 3 in the first direction D1, in particular between a covering position and an operating position. Specifically, when the sliding plate 4 is in the covering position, the operating part is covered by the sliding plate 4 to prevent the operating part from being operated, and when the sliding plate 4 is in the operating position, the operating part is exposed and can be operated. The operating part is used to realize the closing or opening operation of the grounding switch in the electrical device.

[0044] Therefore, through the mechanical structure, when the circuit breaker is closed, i.e., the first state piece 1 is in the first position, and when the grounding switch is opened, i.e., the second state piece 2 is in the locking position, the sliding plate 4 is prevented from moving in the first direction D1, preventing the operating part from being operated; when the circuit breaker is closed, i.e., the first state piece 1 is in the first position, and when the grounding switch is closed, i.e., the second state piece 2 is in the releasing position, the sliding plate 4 is allowed to move in the first direction D1, allowing the operating part to be operated; when the circuit breaker is opened, i.e., the first state piece 1 is in the second position, the sliding plate 4 is allowed to move in the first direction D1, allowing the operating part to be operated. In the case where the circuit breaker is closed in linkage with the closing operation of the grounding switch, the opening operation of the grounding switch is allowed, and the circuit breaker is opened in linkage, and in the case where the circuit breaker is closed independently of the grounding switch, the closing operation of the grounding switch is prevented, avoiding disturbing the logic of the electrical device and / or causing damage.

[0045] Specifically, the interlocking mechanism according to the present disclosure can include a limiting piece 5, a coupling assembly 6, and a locking assembly 7, as shown in Figure 1 、 Figure 2 、 Figure 3a and Figure 3b to realize the mechanical interlocking described above. The limiting piece 5 can be used to limit the locking assembly 7, which is used to limit the sliding plate 4. The limiting piece 5 is coupled to the first state piece 1 through the coupling assembly 6, so that the limiting piece 5 can be switched between the limiting position and the avoiding position.

[0046] For example, the coupling assembly 6 couples the limiting piece 5 and the first state piece 1, so that when the first state piece 1 is in the first position, the limiting piece 5 is in the limiting position, and when the first state piece is in the second position, the limiting piece is in the avoiding position. For example, the coupling assembly 6 can include a pin cam 61, a pivot connection piece 62, and a transmission piece 63. Figure 1 and Figure 2 The multiple arrows shown in the figures show the movement directions of the first state piece 1, the pin cam 61, the pivot connection piece 62, and the transmission piece 63 during the movement of the first state piece 1 from the second position to the first position, and the movement connections of these components are described in detail below.

[0047] Specifically, the nail belt cam 61 can be synchronously moved with the first status member 1, as shown in Figure 2 For example, the nail belt cam 61 is provided with a polygonal hole, and the first status member 1 is a pivotable member, and the pivot axis of the first status member 1 is provided with a polygonal profile for cooperating with the polygonal hole of the nail belt cam 61 to drive the nail belt cam 61 to pivot synchronously.The nail belt cam 61 is further provided with a protruding nail part 611 for cooperating with the transmission member 63, as shown in Figure 2

[0048] The pivot connection member 62 is pivotally mounted to the fixed housing 3, and the pivot connection member 62 is connected to the limiting member 5, so that the pivoting of the pivot connection member 62 can drive the limiting member 5 to move linearly between the limiting position and the avoiding position, as shown in Figure 1 One protruding part of the pivot connection member 62 is connected to the transmission member 63, as shown in Figure 2 so that the linear movement of the transmission member 63, as shown by the linear arrow in Figure 2 , can drive the pivot connection member 62 to pivot.

[0049] One end of the transmission member 63 can be connected to the nail part of the nail belt cam 61, and the other end can be connected to the pivot connection member 62, and the pivoting of the nail belt cam 61 (two arc-shaped arrows in Figure 2 ) can drive the transmission member 63 to move linearly, and in turn, the transmission member 63 drives the pivot connection member 62 to pivot, and further, the pivot connection member 62 drives the limiting member 5 to move linearly. In particular, the transmission member 63 can be perpendicular to the linear movement direction of the limiting member 5, so as to realize the conversion of linear movement in two different orientations, which is determined by the overall structural layout of the electrical device, and thus the position and orientation of the transmission member 63 and the limiting member 5 can be freely selected according to the needs.

[0050] As shown in Figure 1 , the limiting member 5 is provided with a limiting groove 51. As shown in Figure 3a , 4a and 5a, the limiting groove 51 includes a limiting section 511 and an avoiding section 512, and the two sections are schematically shown by the dashed lines in the figure, and the groove width of the avoiding section 512 is wider than that of the limiting section 511, and the direction of the groove width is perpendicular to the movement direction of the limiting member.

[0051] Therefore, when the first status member 1 is located at the second position, the limiting member 5 is located at the avoiding position, as shown in FIG. 3, and in the avoiding position, the protruding part 721 is placed in the avoiding section 512 of the limiting groove 51. Through the coupling assembly 6, when the first status member 1 moves from the second position to the first position, the limiting member 5 is placed in the limiting position, that is, the limiting member 5 moves relative to the protruding part 721, as shown in Figure 4a and 5aAs shown, in the limiting position, the protruding portion 721 is placed in the limiting section 511 of the limiting groove 51.

[0052] Figure 3b , 4b Figs. 5a and 5b show the structure of the locking assembly 7 for realizing the locking and avoiding of the sliding plate 4. Specifically, the locking assembly 7 cooperates with the limiting member 5 to realize the locking and avoiding functions. Specifically, when the limiting member 5 is in the avoiding position, the locking assembly 7 allows the sliding plate 4 to move in the first direction D1; when the limiting member 5 is in the limiting position, the locking assembly 7 prevents the sliding plate 4 from moving in the first direction D1 in the case that the second state member 2 is in the locking position; when the limiting member 5 is in the limiting position, the locking assembly 7 allows the sliding plate 4 to move in the first direction D1 in the case that the second state member 2 is in the releasing position.

[0053] The locking assembly 7 can include a pivoting portion 71, which is pivotally mounted to the fixed housing about a pivoting shaft 73, and which can be in abutting cooperation with the sliding plate 4.

[0054] Part of the pivoting portion 71 is located in the movement track of the sliding plate 4 in the first direction D1, and when the sliding plate 4 moves in the first direction D1 relative to the fixed housing 3, the pivoting portion 71 will hinder the sliding plate 4. When the pivoting portion 71 can pivot about the pivoting shaft 73, the pivoting portion 71 has the avoiding function, and the sliding plate 4 moves in the first direction D1 to expose the operating portion past the pivoting portion 71; on the contrary, when the pivoting portion 71 cannot pivot about the pivoting shaft 73, the pivoting portion 71 has the locking function, and the sliding plate 4 is prevented from moving in the first direction D1 past the pivoting portion 71, so that the operating portion is always kept covered.

[0055] According to the interlocking mechanism of the present disclosure, it is also necessary to realize the covering of the operating portion according to the state of the second state member 2. The locking assembly 7 can further include a blocking portion 72, which can include a protruding portion 721, and the second state member 2 can be pivotally mounted on the blocking portion 72. The pivoting of the pivoting portion 71 can be controlled through the mutual cooperation of the limiting member 5 and the blocking portion 72 of the locking assembly 7. So that when the limiting member 5 is in the avoiding position, the protruding portion 721 is located in the avoiding section 512, as shown, the groove width of the avoiding section 512 is wider, and the pivoting of the pivoting portion 71 about the pivoting shaft 73 is not limited by the protruding portion 721. When the limiting member 5 is in the limiting position, the protruding portion 721 is located in the limiting section 511, as shown, the groove width of the limiting section 511 is smaller, and the pivoting of the pivoting portion 71 about the pivoting shaft 73 can be limited by the protruding portion 721 (to be described in detail later). Figure 3a Figure 4a 5a

[0056] ​​​Further, the state of the second state piece 2 can be associated with whether the pivoting portion 71 can pivot, to realize the locking of the second state piece 2 to the movement of the slide plate 4. Specifically, when the limiting piece 5 is in the limiting position, in the case that the second state piece 2 is in the locking position, the pivoting portion 71 is locked, preventing the slide plate 4 from moving in the first direction D1; when the limiting piece 5 is in the limiting position, in the case that the second state piece is in the releasing position, the pivoting portion 71 is allowed to pivot, thereby allowing the slide plate 4 to move in the first direction D1.

[0057] Specifically, the pivoting portion 71 and the blocking portion 72 can be switched between a common movement and a relative movement. For example, when the second state piece 2 is in the locking position, the blocking portion 72 and the pivoting portion 71 abut against each other, and the two can move synchronously, as shown in Figure 3b and Figure 4b When the second state piece 2 is in the releasing position, the pivoting portion 72 can move relative to the blocking portion 71, as shown in Figure 5b . Thus, when the limiting piece 5 is in the limiting position (the protruding portion 721 is in the limiting section 511), if the pivoting portion 71 and the blocking portion 72 move together, the pivoting portion 71 and the blocking portion 72 are restricted from pivoting together around the pivoting shaft, as shown in Figure 4b ; if the pivoting portion 71 and the blocking portion 72 can move relative to each other, only the blocking portion 72 is restricted from pivoting around the pivoting shaft 73, and the pivoting portion 71 can pivot around the pivoting shaft 73 relative to the blocking portion 72, as shown in Figure 4b . When the limiting piece 5 is in the avoiding position, whether the pivoting portion 72 and the blocking portion 71 can move relative to each other or not, the blocking portion 72 is allowed to pivot around the pivoting shaft.

[0058] In order to realize the switching of the relative movement between the pivoting portion 71 and the blocking portion 72 through the state of the second state piece 2, a slot 21 can be provided on the second state piece 2 in the circumferential direction (around its own pivoting axis), and correspondingly, an interference portion 711 is provided on the pivoting portion 71 to cooperate with the slot 21, as shown in Figure 6 . The locking piece 7 is configured such that when the second state piece 2 is pivoted to the releasing position, the slot 21 faces the interference portion 711, and the interference portion 711 can extend into the slot 21 so that the pivoting portion 71 can pivot around the pivoting shaft 73 relative to the blocking portion 72, as shown in Figure 5b ; when the second state piece 2 is pivoted to the locking position, the slot 21 is misaligned with the interference portion 711, so that the interference portion 711 abuts against the second state piece 2 (the part without the slot 21), as shown in Figure 3b and Figure 4b , thereby the pivoting portion 71 can only move synchronously with the blocking portion 72, and the locking assembly 7 as a whole pivots around the pivoting shaft 73.

[0059] Thus, as previously described, by the mechanical structure, in the case that the circuit breaker is linked to be closed by the closing operation of the grounding switch, the opening operation of the grounding switch is allowed, and further the circuit breaker is linked to be opened; in the case that the circuit breaker is closed independently of the grounding switch, the closing operation of the grounding switch is prevented, and disturbance of the logic of the electrical device and / or damage is avoided.

[0060] The present disclosure also proposes an electrical device, which can include a circuit breaker, a grounding switch, and an operating part for closing and opening the grounding switch, such as a gas-insulated enclosed switchgear.

[0061] In particular, the electrical device can have the function of linking the circuit breaker to be closed and opened by the closing and opening operation of the grounding switch. For example, in order to turn on the grounding circuit, the closing of the circuit breaker must be triggered reliably by the closing of the grounding switch, and the grounding switch is closed prior to the circuit breaker; in order to turn off the grounding circuit, the opening of the circuit breaker must be triggered by the opening of the grounding switch, and the grounding switch is opened later than the circuit breaker. Such an electrical device with automatic linkage function can realize the automatic linkage of the grounding switch opening and closing action triggering the circuit breaker opening and closing action. The automatic linkage is not the focus of the present disclosure, and will not be described in detail here.

[0062] The electrical device can include the interlocking mechanism according to the present disclosure, and is arranged to couple the circuit breaker with the first status member 1, so that when the circuit breaker is closed, the first status member 1 is caused to be located at the first position; when the circuit breaker is opened, the first status member 1 is caused to be located at the second position, Figure 2 The arc-shaped arrow at the first status member 1 indicates the direction of movement from the second position to the first position. When the grounding switch is closed, the second status member 2 is caused to move to the release position (as shown in Figure 5b When the grounding switch is opened, the second status member 2 is caused to move to the locking position (as shown in Figure 3b and 4b ).

[0063] The operating part is adjacent to the sliding plate, so that when the circuit breaker is closed, i.e. the first status member 1 is located at the first position, and when the grounding switch is opened, i.e. the second status member 2 is located at the locking position, the sliding plate 4 is prevented from moving in the first direction D1, and the operating part is prevented from being operated; when the circuit breaker is closed, i.e. the first status member 1 is located at the first position, and when the grounding switch is closed, i.e. the second status member 2 is located at the release position, the sliding plate 4 is allowed to move in the first direction D1, and the operating part is allowed to be operated; when the circuit breaker is opened, i.e. the first status member 1 is located at the second position, the sliding plate 4 is allowed to move in the first direction D1, and the operating part is allowed to be operated.

[0064] Thus, in the case that the circuit breaker is closed in linkage with the closing operation of the grounding switch, the grounding switch is allowed to be opened, and the circuit breaker is opened in linkage; in the case that the circuit breaker is closed independently of the grounding switch, the grounding switch is prevented from being closed, so as to avoid disturbing the logic of the electrical device and / or causing damage.

[0065] The present disclosure, in order to meet the requirements of two different interlocking logics between the circuit breaker and the grounding switch when the circuit breaker is in the closed position in two working conditions respectively, reliably directly grasps the opening and closing states of the circuit breaker and the grounding switch through a special mechanical structure, and realizes the interlocking logics in the two working conditions through a special interlocking structure.

[0066] It should be understood that the above description is intended for illustration and not limitation. For example, the above-described embodiments (and / or aspects thereof) can be used in combination with each other. In addition, many modifications can be made to adapt a particular situation or material to the teachings of the present disclosure without departing from the scope thereof. The functions or performances of various elements or modules described herein are only for illustration and are by no means limiting, but are merely exemplary embodiments. After 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 the present disclosure should be determined with reference to the appended claims and the full scope of equivalents to which these claims are entitled.

[0067] In the appended claims, the terms "comprise" and "wherein" are used as simple English equivalents of the respective terms "include" and "in which." Furthermore, 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 by, comprising a fixed housing, a first status member switchable between a first position and a second position, a second status member switchable between a locked position and a released position, a slide plate configured to move in a first direction relative to the fixed housing, wherein the slide plate is prevented from moving in the first direction when the second status member is in the locked position when the first status member is in the first position, the slide plate is allowed to move in the first direction when the second status member is in the released position when the first status member is in the first position, the slide plate is allowed to move in the first direction when the first status member is in the second position.

2. The interlock mechanism of claim 1, wherein, further comprising a limiting member configured to switch between a limiting position and a avoiding position, a coupling assembly coupling the limiting member and the first status member such that the limiting member is in the limiting position when the first status member is in the first position and the limiting member is in the avoiding position when the first status member is in the second position, a locking assembly comprising the second status member, the locking assembly cooperating with the limiting member such that the locking assembly allows the slide plate to move in the first direction when the limiting member is in the avoiding position, the locking assembly prevents the slide plate from moving in the first direction when the second status member is in the locked position when the limiting member is in the limiting position, the locking assembly allows the slide plate to move in the first direction when the second status member is in the released position when the limiting member is in the limiting position.

3. The interlocking mechanism according to claim 2, wherein the locking assembly comprises a pivot portion pivotally mounted to the fixed housing about a pivot axis, wherein the pivot portion is allowed to pivot when the limiting member is in the avoiding position, the pivot portion is locked when the second status member is in the locked position when the limiting member is in the limiting position, the pivot portion is allowed to pivot when the second status member is in the released position when the limiting member is in the limiting position, the pivot portion allows the slide plate to move in the first direction when the pivot portion is allowed to pivot, the pivot portion blocks the slide plate from moving in the first direction when the pivot portion is locked.

4. The interlocking mechanism according to claim 3, wherein the locking assembly further comprises a blocking portion to which the second status member is pivotally mounted, wherein the blocking portion moves synchronously with the pivot portion when the second status member is in the locked position, the pivot portion is allowed to move relative to the blocking portion when the second status member is in the released position.

5. The interlocking mechanism according to claim 4, wherein the limiting member comprises a limiting slot comprising a limiting section and an avoiding section, the avoiding section having a wider slot width than the limiting section, the blocking portion comprises a protruding portion extending into the limiting slot, the protruding portion is located in the limiting section when the limiting member is in the limiting position, restricting the blocking portion from pivoting about the pivot axis. When the limiting member is in the avoiding position, the protruding part is in the avoiding section, allowing the blocking part to pivot around the pivot axis.

6. The interlocking mechanism according to claim 4, wherein, the second status member is provided with a slot in the circumferential direction, and the pivot part is provided with an interference part cooperating with the slot, when the second status member is pivoted to the releasing position, the slot faces the interference part, and the interference part can extend into the slot so that the pivot part can move relative to the blocking part, whereby the pivot part can pivot relative to the blocking part around the pivot axis, when the second status member is pivoted to the locking position, the slot is misaligned with the interference part so that the interference part abuts against the second status member, and the pivot part can only move synchronously with the blocking part, and the locking assembly can pivot as a whole around the pivot axis.

7. An interlock mechanism according to any one of claims 2-6, characterized in that, The coupling assembly comprises a nail cam moving synchronously with the first status member, a pivot connecting member pivotally mounted to the fixed housing, the pivot connecting member being connected to the limiting member, and the pivot of the pivot connecting member driving the linear movement of the limiting member between the limiting position and the avoiding position, a transmission member having one end connected to the nail cam and the other end connected to the pivot connecting member, the pivot of the nail cam driving the linear movement of the transmission member, and the transmission member in turn driving the pivot of the pivot connecting member.

8. The interlocking mechanism according to claim 7, wherein, the linear movement directions of the transmission member and the limiting member are perpendicular to each other.

9. An electrical device, characterized by comprising the interlocking mechanism according to any one of claims 1-8, a circuit breaker, when the circuit breaker is closed, causing the first status member to be in the first position, and when the circuit breaker is opened, causing the first status member to be in the second position, an operating part adjacent to the sliding plate, the sliding plate is configured to move in a first direction between an operating position and a covering position, when the sliding plate is in the covering position, the sliding plate covers the operating part to prevent the operating part from being operated, and when the sliding plate is in the operating position, the operating part is exposed and can be operated.

10. The electrical device according to claim 9, wherein, the electrical device further comprises a grounding switch, and the operating part is configured to perform closing or opening operation on the grounding switch.

11. The electrical device according to claim 10, wherein, when the grounding switch is closed, causing the second status member to move to the releasing position, when the grounding switch is opened, causing the second status member to move to the locking position.

12. The electrical device according to any one of claims 9-11, wherein, the electrical device is a gas insulated switchgear.

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