An isolating pole shutter locking device

Abstract

The application relates to an isolating knife switch locking device, a mounting shell, an operating assembly and a driving assembly, the mounting shell is internally provided with a containing cavity, and a first insertion hole and a second insertion hole matched with a remote lever are formed in one side of the mounting shell. The operating assembly comprises a rocking handle operating rod, a connecting rod and a movable sleeve, one end of the connecting rod is connected with the rocking handle operating rod, the other end is sleeved with the movable sleeve, so that the movable sleeve can slide along the connecting rod, the driving assembly is arranged on one side of the operating assembly in the axial direction, the driving assembly comprises a driving piece, a support, a connecting piece and a transmission rod, the transmission rod is arranged through the support, the driving piece drives the transmission rod to rotate, the connecting piece moves along the transmission rod to drive the movable sleeve to move and then passes through the first insertion hole, and the second insertion hole is arranged, so that the transmission rod can be operated when the motor is damaged, thereby operating the remote lever operating rod. The locking device reduces the possibility of the operator accidentally touching the knife switch, and improves the safety and stability of the isolating knife switch.

Description

Technical Field

[0001] This application relates to the field of power equipment technology, and in particular to an isolating switch interlocking device. Background Technology

[0002] With the continuous development of power automation technology, power automation devices such as disconnector switchgear and grounding cabinets are widely used in substations, rail transit, and other fields. These power automation devices all have built-in electrically operated disconnector or grounding switches, used to change circuit connections or isolate equipment from the power supply. Specifically, after the motor is powered on, it rotates, and the motor shaft is reduced in speed by a gear reducer, driving the switch to move, thus enabling the switch to automatically open or close, replacing manual operation and realizing power automation. At the same time, in order to ensure the switch can be debugged and used in emergency situations, in addition to automatic operation, a manual operation mode must still be retained. That is, in the event of a power failure of the disconnector or grounding device or a motor failure, resulting in the switch being unable to operate, it is necessary to manually crank the motor with a manual handle to manually open or close the switch.

[0003] To prevent operators from accidentally activating the knife switch and causing an accident, a locking device is needed. Most knife switch locking devices in related technologies use a metal plate clamped on the crank operating lever to block the crank operating lever, thus preventing the crank from connecting with the crank operating lever and achieving the effect of locking the crank operating lever. However, since the metal plate only partially blocks the crank operating lever, it is prone to misoperation, resulting in low safety and stability of the locking mechanism. Summary of the Invention

[0004] Therefore, it is necessary to provide a stable isolating switch interlocking device that can combine mechanical and manual operation to improve electrical safety, addressing the problem of easy misoperation of interlocking devices in related technologies.

[0005] An isolating switch interlocking device includes:

[0006] The mounting housing has an internal cavity and a first insertion hole and a second insertion hole on one side.

[0007] An operating component is disposed in the receiving cavity and includes a crank operating lever, a connecting rod, and a movable sleeve. One end of the connecting rod is connected to the crank operating lever, and the other end is sleeved with the movable sleeve so that the movable sleeve can slide along the connecting rod. The movable sleeve is adapted to the first insertion hole.

[0008] A drive assembly is disposed on one axial side of the operating assembly. The drive assembly includes a drive member, a support, a connector, and a transmission rod. The support is disposed on the cavity wall of the receiving cavity. The transmission rod is mounted on the support. The drive member is disposed at one end of the transmission rod to drive the transmission rod to rotate. The connector passes through the transmission rod and is connected to one end of the movable sleeve. When the transmission rod rotates, the connector can drive the movable sleeve to slide axially along the connecting rod. The end of the transmission rod facing the second insertion hole is adapted to the second insertion hole.

[0009] In one embodiment, the movable sleeve has a sliding cavity arranged along the length of the movable sleeve, and the sliding cavity has an insertion slot on the side facing the connecting rod. One end of the connecting rod is provided with a positioning slide plate adapted to the sliding cavity. The positioning slide plate cooperates with the sliding cavity so that the movable sleeve can slide along the axial direction of the connecting rod.

[0010] In one embodiment, the support includes a base plate and a first support plate and a second support plate disposed opposite to each other at both ends of the base plate. Both the first support plate and the second support plate have mounting holes. The transmission rod is mounted on the support in conjunction with the mounting holes and can rotate within the mounting holes.

[0011] In one embodiment, the transmission rod includes a lead screw section and a smooth rod section. The lead screw section is disposed between the first support plate and the second support plate. The connecting member passes through the lead screw section. When the driving member drives the transmission rod to rotate, the connecting member moves axially along the lead screw section.

[0012] In one embodiment, an annular groove is formed around the wall of the movable sleeve at one end facing the connector, and a collar is provided in the annular groove. The collar is connected to the connector on the side facing the transmission rod.

[0013] In one embodiment, a third insertion hole is provided on the mounting housing opposite the end of the transmission rod away from the drive member, and the length of the transmission rod is less than the length of the receiving cavity, so that the transmission rod can be hidden in the receiving cavity.

[0014] In one embodiment, the isolating switch interlocking device further includes a rotating knob, a connecting shaft, a shielding part, and a mounting bracket. The rotating knob is rotatably connected to the third socket. The mounting bracket is mounted on one end of the support facing the third socket. One end of the connecting shaft is connected to the mounting bracket, and the other end is connected to the rotating knob. The shielding part engages with the connecting shaft so that the rotation of the connecting shaft can drive the shielding part to rotate.

[0015] In one embodiment, the shielding part includes a first gear, a second gear, a fixed shaft, and an isolation plate. The first gear passes through the connecting shaft, the fixed shaft is located at one end of the mounting bracket facing the first gear, the second gear is rotatably connected to the fixed shaft, and one side of the second gear meshes with the first gear. An isolation plate capable of shielding the transmission rod is provided on the outside of the fixed shaft.

[0016] In one embodiment, the isolating knife gate locking device further includes a limiting component disposed in the accommodating cavity and disposed relative to the first insertion hole. The limiting component includes a positioning part, an elastic element and a blocking block. The positioning part is disposed on the cavity wall of the accommodating cavity. One end of the elastic element is connected to the positioning part and the other end is connected to the blocking block. The blocking block is disposed at an angle to the movable sleeve.

[0017] In one embodiment, the isolating switch interlocking device further includes a protective cover, which is rotatably connected to the third socket via a five-proof lock.

[0018] The aforementioned isolating switch interlocking device includes a mounting housing, an operating component, and a drive component. The mounting housing has an internal cavity for accommodating the operating component and the drive component, and a first and second insertion hole are provided on one side of the mounting housing for insertion into a remote control lever. The operating component includes a crank operating lever, a connecting rod, and a movable sleeve. One end of the connecting rod is connected to the crank operating lever, and the other end is sleeved with the movable sleeve, allowing the movable sleeve to slide along the connecting rod. The movable sleeve is fitted with the first insertion hole. The drive component is located on the axial side of the operating component and includes a drive element, a support, a connecting element, and a transmission rod. The support is located on the cavity wall of the accommodating cavity, the transmission rod is mounted on the support, the drive element is located at one end of the transmission rod to drive the transmission rod to rotate, and the connecting element passes through the transmission rod and is connected to one end of the movable sleeve. When the transmission rod rotates, the connecting element can drive the movable sleeve to slide axially along the connecting rod. The end of the transmission rod facing the second insertion hole is fitted with the second insertion hole. A drive mechanism rotates a transmission rod, which is connected to a movable sleeve via a connector. When the transmission rod rotates, the movable sleeve slides axially along the connecting rod. When the isolating switch requires operation of the crank handle, the movable sleeve slides towards the first socket. A matching crank handle is fitted onto the movable sleeve, allowing the crank handle to be rotated via the connecting sleeve and rod. To lock the crank handle, the drive mechanism slides the movable sleeve away from the first socket. A second socket allows for unlocking even if the motor is damaged. A matching crank handle is inserted into the second socket to rotate the transmission rod, driving the movable sleeve and thus the crank handle. This locking device reduces the possibility of accidental operation by the operator, improving the safety and stability of the isolating switch. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the isolating switch interlocking device.

[0020] Figure 2 This is a cross-sectional view of the isolating switch interlocking device.

[0021] Figure 3 For isolating switch interlocking device Figure 2 A magnified view of part A.

[0022] Figure 4 This is a schematic diagram of the internal structure of the isolating switch interlocking device.

[0023] Figure 5 For isolating switch interlocking device Figure 4 A magnified view of section B.

[0024] Figure 6 A schematic diagram of the overall structure of the isolating switch interlocking device (with the protective cover omitted).

[0025] Reference numerals: 100, mounting housing; 110, receiving cavity; 120, first insertion hole; 130, second insertion hole; 140, third insertion hole; 150, rotating knob; 160, connecting shaft; 170, shielding part; 171, first gear; 172, second gear; 173, fixed shaft; 174, isolation plate; 180, mounting bracket; 190, protective cover; 200, operating component; 210, crank operating lever; 220, connecting rod; 221, positioning slide plate; 230. Movable sleeve; 231. Sliding cavity; 232. Insertion slot; 233. Annular groove; 234. Collar; 300. Drive assembly; 310. Drive component; 320. Support; 321. Base plate; 322. First support plate; 323. Second support plate; 330. Connector; 340. Transmission rod; 341. Lead screw section; 342. Smooth rod section; 400. Limiting assembly; 410. Positioning part; 420. Elastic element; 430. Blocking block. Detailed Implementation

[0026] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0027] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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 application.

[0028] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0029] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0030] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0031] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0032] See Figure 1 and Figure 2 One embodiment of this application provides an isolating switch locking device, including a mounting housing 100, an operating component 200, and a drive component 300. The mounting housing 100 has a receiving cavity 110 inside, and a first insertion hole 120 and a second insertion hole 130 are opened on one side of the mounting housing 100. The operating component 200 is disposed in the receiving cavity 110 and includes a crank operating rod 210, a connecting rod 220, and a movable sleeve 230. One end of the connecting rod 220 is connected to the crank operating rod 210, and the other end is sleeved with the movable sleeve 230 so that the movable sleeve 230 can slide along the connecting rod 220. The movable sleeve 230 is adapted to the first insertion hole 120. The drive assembly 300 is disposed on one axial side of the operating assembly 200. The drive assembly 300 includes a drive member 310, a support 320, a connector 330, and a transmission rod 340. The support 320 is disposed on the cavity wall of the accommodating cavity 110. The transmission rod 340 is mounted on the support 320. The drive member 310 is disposed at one end of the transmission rod 340 to drive the transmission rod 340 to rotate. The connector 330 passes through the transmission rod 340 and is connected to one end of the movable sleeve 230. When the transmission rod 340 rotates, the connector 330 can drive the movable sleeve 230 to slide axially along the connecting rod 220. The end of the transmission rod 340 facing the second insertion hole 130 is adapted to the second insertion hole 130.

[0033] The aforementioned isolating switch interlocking device includes a mounting housing 100, an operating component 200, and a drive component 300. The mounting housing 100 has an internal accommodating cavity 110 for housing the operating component 200 and the drive component 300. A first insertion hole 120 and a second insertion hole 130 are provided on one side of the mounting housing 100 to engage with a remote control lever. The operating component 200 includes a crank operating lever 210, a connecting rod 220, and a movable sleeve 230. One end of the connecting rod 220 is connected to the crank operating lever 210, and the other end is fitted into the movable sleeve 230, allowing the movable sleeve 230 to slide along the connecting rod 220. The movable sleeve 230 is adapted to the first insertion hole 120. The drive assembly 300 is located on one axial side of the operating assembly 200. The drive assembly 300 includes a drive member 310, a support 320, a connector 330, and a transmission rod 340. The support 320 is disposed on the cavity wall of the receiving cavity 110. The transmission rod 340 is mounted on the support 320. The drive member 310 is located at one end of the transmission rod 340 to drive the transmission rod 340 to rotate. The connector 330 passes through the transmission rod 340 and is connected to one end of the movable sleeve 230. When the transmission rod 340 rotates, the connector 330 can drive the movable sleeve 230 to slide axially along the connecting rod 220. The end of the transmission rod 340 facing the second insertion hole 130 is adapted to the second insertion hole 130. By setting the drive member 310 to drive the transmission rod 340 to rotate, and simultaneously connecting the transmission rod 340 to the movable sleeve 230 via the connector 330, when the transmission rod 340 rotates, the movable sleeve 230 can slide in the axial direction of the connecting rod 220.

[0034] Specifically, when the isolating switch requires operation of the crank operating lever 210, the movable sleeve 230 slides towards the first socket 120. A matching crank is fitted onto the movable sleeve 230, allowing the crank operating lever 210 to rotate via the connecting cylinder and connecting rod 220. When locking the crank operating lever 210 is required, the drive component 310 slides the movable sleeve 230 away from the first socket 120. By providing a second socket 130, unlocking can still be performed even if the motor is damaged. Specifically, a matching crank is inserted into the second socket 130 to rotate the transmission rod 340, driving the movable sleeve 230 and thus the crank operating lever. This locking device reduces the possibility of accidental operation by the operator, improving the safety and stability of the isolating switch.

[0035] See Figure 2 In some embodiments, the movable sleeve 230 is provided with a sliding cavity 231 arranged along the length of the movable sleeve 230. The sliding cavity 231 has an insertion slot 232 on the side facing the connecting rod 220. One end of the connecting rod 220 is provided with a positioning slide plate 221 adapted to the sliding cavity 231. The positioning slide plate 221 cooperates with the sliding cavity 231 so that the movable sleeve 230 can slide along the axial direction of the connecting rod 220.

[0036] Furthermore, by providing a sliding cavity 231 along the length of the movable sleeve 230, and a connecting rod 220 that is slidably sleeved with the sliding cavity 231, specifically, the cross-section of the sliding cavity 231 is set to be prismatic, the positioning slide plate 221 is adapted to the sliding cavity 231 and the diameter of the positioning slide plate 221 is larger than the insertion slot 232, when the driving member 310 drives the transmission rod 340 to rotate and drive the connecting member 330, and the connecting member 330 drives the movable sleeve 230 to slide along the axial direction of the connecting rod 220, the positioning slide plate 221 can prevent the movable sleeve 230 from disengaging from the connecting rod 220, maintain the mutual connection and sliding between the two, and thus improve the operational stability of the crank operating rod 210.

[0037] See Figure 2 In some embodiments, the support 320 includes a base plate 321 and a first support plate 322 and a second support plate 323 disposed opposite to each other at both ends of the base plate 321. The first support plate 322 and the second support plate 323 are both provided with mounting holes. The transmission rod 340 is mounted on the support 320 in accordance with the mounting holes and can rotate in the mounting holes.

[0038] Furthermore, the base plate 321 is positioned below the operating component 200 and extends along the length of the accommodating cavity 110. The first support plate 322 and the second support plate 323 are respectively positioned at both ends of the base plate 321, thus the support 320 is configured as a U-shaped seat. By extending the base plate 321 along the length of the accommodating cavity 110, sufficient movement distance is provided for the connecting member 330 connected between the first support plate 322 and the second support plate 323 when the driving member 310 drives the transmission rod 340 to rotate. Since the connecting member 330 is connected to the movable sleeve 230, the movable sleeve 230 can be fully extended through the first insertion hole 120 or completely retracted into the accommodating cavity 110, further improving the safety of the isolating switch interlocking device and preventing misoperation.

[0039] See Figure 2 In some embodiments, the transmission rod 340 includes a lead screw section 341 and a smooth rod section 342. The lead screw section 341 is disposed between the first support plate 322 and the second support plate 323. The connecting member 330 passes through the lead screw section 341. When the driving member 310 drives the transmission rod 340 to rotate, the connecting member 330 moves axially along the lead screw section 341.

[0040] Furthermore, a manual operating head is installed at the end of the smooth rod section 342 facing the second insertion hole 130. Its shape is adapted to the remote control, allowing the operator to connect the remote control to the manual operating head. This improves the connection stability between the remote control and the transmission rod 340 in case of motor failure, enabling manual rotation of the transmission rod 340. The distance between the movable sleeve 230 and the first insertion hole 120 is then adjusted via the connecting piece 330. The connecting piece 330 passes through and is threadedly connected to the lead screw section 341. When the transmission rod 340 rotates, the connecting piece 330 can move along the length of the lead screw section 341, achieving a conversion from rotary motion to linear motion.

[0041] See Figure 3 In some embodiments, the movable sleeve 230 has an annular groove 233 around the cylinder wall of the connector 330 at one end facing the connector 330, and a collar 234 is provided in the annular groove 233. The side of the collar 234 facing the transmission rod 340 is connected to the connector 330.

[0042] Furthermore, an annular groove 233 is provided on the wall of the movable sleeve 230, and a collar 234 is rotatably connected in the annular groove 233. Since the collar 234 is connected to the connecting member 330, the movement of the connecting member 330 can drive the collar 234 to rotate, thereby driving the movable sleeve 230 to move. Since both the annular groove 233 and the collar 234 are circular rings, when the movable sleeve 230 is rotated, not only can the static friction between the movable sleeve 230 and the connecting member 330 be converted into sliding friction, but the movable sleeve 230 will also not be driven by the collar 234, thus preventing the collar 234 from affecting the rotation of the movable sleeve 230, thereby ensuring the stable operation between the operating component 200 and the driving component 300.

[0043] See Figure 1 and Figure 2 In some embodiments, a third insertion hole 140 is provided on the mounting shell 100 opposite to the end of the transmission rod 340 away from the drive member 310, and the length of the transmission rod 340 is less than the length of the receiving cavity 110 so that the transmission rod 340 can be hidden in the receiving cavity 110.

[0044] Furthermore, a third socket 140 is located to one side of the second socket 130, and a rotating knob 150 is provided inside the third socket 140. The rotating knob 150 can control the energization of the contact network. Rotating the knob 150 forward de-energizes the contact network. Rotating the knob 150 in reverse energizes the contact network, allowing direct operation via the drive unit 310. By setting the length of the transmission rod 340 to be less than that of the receiving cavity 110, the transmission rod 340 can be hidden within the receiving cavity 110. When the drive unit 310 malfunctions, a matching remote lever needs to be inserted into the second socket 130 to connect with the transmission rod 340, preventing accidental operation by the operator and improving safety.

[0045] See Figure 4 In some embodiments, the isolating switch locking device further includes a rotary knob 150, a connecting shaft 160, a blocking part 170, and a mounting bracket 180. The rotary knob 150 is rotatably connected to the third socket 140. The mounting bracket 180 is located at one end of the support 320 facing the third socket 140. One end of the connecting shaft 160 is connected to the mounting bracket 180, and the other end is connected to the rotary knob 150. The blocking part 170 engages with the connecting shaft 160 so that the rotation of the connecting shaft 160 can drive the blocking part 170 to rotate.

[0046] Furthermore, the mounting bracket 180 is positioned on the side of the support 320 facing the third socket 140. By rotating the knob 150 and the shielding part 170 rotatably connected to the connecting shaft 160, and with the shielding part 170 being sized to fit the manual operation head, the manual operation head can be fully shielded. When the knob 150 is rotated, the shielding part 170 rotates with the connecting shaft 160, causing the manual operation head to be exposed or blocked relative to the second socket 130, thereby switching the manual operation mode on or off.

[0047] See Figure 5 In some embodiments, the shielding part 170 includes a first gear 171, a second gear 172, a fixed shaft 173, and an isolation plate 174. The first gear 171 passes through the connecting shaft 160, the fixed shaft 173 is located at one end of the mounting bracket 180 facing the first gear 171, the second gear 172 is rotatably connected to the fixed shaft 173, and one side of the second gear 172 meshes with the first gear 171. An isolation plate 174 capable of shielding the transmission rod 340 is provided on the outside of the fixed shaft 173.

[0048] Furthermore, by providing a first gear 171 through the connecting shaft 160 and a second gear 172, which is a crescent gear, through the fixed shaft 173 of the mounting bracket 180, and by having the first gear 171 mesh with the second gear 172 on one side, the second gear 172 can drive the isolation plate 174 to rotate. This allows the isolation plate 174 to be positioned between the second insertion hole 130 and the manual operating head, or at a position offset from the manual operating head. This enables switching between manual and electric operation modes of the crank operating lever 210, while also improving the control accuracy of the rotation angle of the isolation plate 174 when rotating the knob 150.

[0049] See Figure 2 and Figure 4 In some embodiments, the isolating knife gate locking device further includes a limiting component 400 disposed in the receiving cavity 110 and disposed relative to the first insertion hole 120. The limiting component 400 includes a positioning part 410, an elastic element 420 and a blocking block 430. The positioning part 410 is disposed in the cavity wall of the receiving cavity 110. One end of the elastic element 420 is connected to the positioning part 410 and the other end is connected to the blocking block 430. The blocking block 430 is set at an angle to the movable sleeve 230.

[0050] Furthermore, the positioning part 410 is disposed in the accommodating cavity 110 near the first insertion hole 120 and parallel to the cavity wall of the movable sleeve 230. One end of the blocking block 430 is elastically connected to the positioning part 410 through the elastic member 420, and the end of the blocking block 430 facing the movable sleeve 230 is provided with an inclined section, so that the end of the blocking block 430 facing the movable sleeve 230 is triangular.

[0051] Under normal circumstances, when the power to the contact wire is turned off, the motor starts and drives the transmission rod 340 to rotate, causing the connector 330 to move. This, in turn, drives the movable sleeve 230 to move towards the first insertion hole 120 through the collar 234. At this time, the blocking block 430 partially blocks the first insertion hole 120. The movable sleeve 230 continues to move towards the first insertion hole 120, which puts a certain amount of pressure on the blocking block 430. Since the end of the blocking block 430 facing the movable sleeve 230 has an inclined section, the blocking block 430 moves upward. Only then can the crank handle be inserted into the movable sleeve 230. After the operation is completed, the power to the contact wire is turned on.

[0052] When the motor drives the lead screw to reverse, the movable sleeve 230 moves away from the first insertion hole 120. Under the push of the elastic element 420 (such as a spring), the blocking block 430 moves downward to block the first insertion hole 120 and the movable sleeve 230. At this time, the movable sleeve 230 cannot be operated at will, thus improving the safety and stability of the locking.

[0053] See Figure 6In some embodiments, the isolating switch locking device further includes a protective cover 190, which is rotatably connected to the third socket 140 via a five-proof lock.

[0054] Furthermore, when the motor is damaged, the protective cover 190 locked by the five-proof lock must be opened first before the rotary knob 150 can be rotated to de-energize the contact wire. Rotating the rotary knob 150 drives the first gear 171 to rotate via the shaft, which in turn drives the isolation plate 174 to misalign with the rotating block via the second gear 172. At this time, the crank handle is inserted into the second socket 130 and placed on the manual operating head. Rotating the crank handle drives the transmission rod 340 to rotate, thereby moving the movable sleeve 230 toward the first socket 120, which facilitates subsequent operation of the remote control lever. By setting the five-proof lock to be rotatably connected to the protective cover 190 in the third socket 140, the operation safety is further improved, and accidental activation of the rotary knob 150 is prevented.

[0055] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0056] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A disconnector interlocking device, characterized in that, include: The mounting housing has an internal cavity and a first insertion hole and a second insertion hole on one side. An operating component is disposed in the receiving cavity and includes a crank operating lever, a connecting rod, and a movable sleeve. One end of the connecting rod is connected to the crank operating lever, and the other end is sleeved with the movable sleeve so that the movable sleeve can slide along the connecting rod. The movable sleeve is adapted to the first insertion hole. A drive assembly is disposed on one axial side of the operating assembly. The drive assembly includes a drive member, a support, a connector, and a transmission rod. The support is disposed on the cavity wall of the receiving cavity. The transmission rod is mounted on the support. The drive member is disposed at one end of the transmission rod to drive the transmission rod to rotate. The connector passes through the transmission rod and is connected to one end of the movable sleeve. When the transmission rod rotates, the connector can drive the movable sleeve to slide along the axial direction of the connecting rod. The end of the transmission rod facing the second insertion hole is adapted to the second insertion hole. The movable sleeve has a sliding cavity arranged along the length of the movable sleeve. The sliding cavity has an insertion slot on the side facing the connecting rod. One end of the connecting rod is provided with a positioning slide plate that is adapted to the sliding cavity. The positioning slide plate cooperates with the sliding cavity so that the movable sleeve can slide along the axial direction of the connecting rod. A third insertion hole is provided on the mounting shell opposite the end of the transmission rod away from the driving member. The length of the transmission rod is less than the length of the receiving cavity, so that the transmission rod can be hidden in the receiving cavity. The isolating switch interlocking device further includes a rotary knob, a connecting shaft, a shielding part, and a mounting bracket. The rotary knob is rotatably connected to the third socket. The mounting bracket is mounted on one end of the support facing the third socket. One end of the connecting shaft is connected to the mounting bracket, and the other end is connected to the rotary knob. The shielding part engages with the connecting shaft so that the rotation of the connecting shaft can drive the shielding part to rotate. The shielding part includes a first gear, a second gear, a fixed shaft, and an isolation plate. The first gear passes through the connecting shaft. The fixed shaft is located at one end of the mounting bracket facing the first gear. The second gear is rotatably connected to the fixed shaft, and one side of the second gear meshes with the first gear. An isolation plate capable of shielding the transmission rod is provided on the outside of the fixed shaft. The isolating knife gate locking device further includes a limiting component disposed in the accommodating cavity and disposed relative to the first insertion hole. The limiting component includes a positioning part, an elastic element and a blocking block. The positioning part is disposed on the cavity wall of the accommodating cavity. One end of the elastic element is connected to the positioning part and the other end is connected to the blocking block. The blocking block is set at an angle to the movable sleeve.

2. The isolating switch interlocking device according to claim 1, characterized in that, The support includes a base plate and a first support plate and a second support plate disposed opposite to each other at both ends of the base plate. Both the first support plate and the second support plate are provided with mounting holes. The transmission rod is mounted on the support in accordance with the mounting holes and can rotate in the mounting holes.

3. The isolating switch interlocking device according to claim 2, characterized in that, The transmission rod includes a lead screw section and a smooth rod section. The lead screw section is disposed between the first support plate and the second support plate. The connecting member passes through the lead screw section. When the driving member drives the transmission rod to rotate, the connecting member moves axially along the lead screw section.

4. The isolating switch interlocking device according to claim 1, characterized in that, The movable sleeve has an annular groove around its wall at one end facing the connector. A collar is provided in the annular groove, and the collar is connected to the connector on the side facing the transmission rod.

5. The isolating switch interlocking device according to claim 1, characterized in that, The isolating switch interlocking device also includes a protective cover, which is rotatably connected to the third socket via a five-proof lock.

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