Operating mechanism interlock with auxiliary contact output

Abstract

The utility model discloses an operating mechanism interlocking device with auxiliary contact output relates to the lock technology field for high voltage switch cabinet, including lock box, the front side left end of lock box is provided with horizontal through slot, still include operating hole switch lock mechanism, lock bolt elastic locking control mechanism and interlocking contact mechanism, and operating hole switch lock mechanism contains switch lock sliding plate, and the left side in lock box is equipped with switch lock sliding plate, this operating mechanism interlocking device with auxiliary contact output, operating personnel one hand rightward wrench operation column, can with switch lock sliding plate and lock bolt right pull, and the other hand will operating lever insert switch operating hole, can carry out the control of motor start -stop switch, when operating lever leaves switch operating hole, and the tension of stretch spring makes lock bolt automatic reset, when lock bolt is pulled apart to right, interlocking contact mechanism and interlocking cancel trigger mechanism cooperation, make the control system of high voltage switch cabinet can grasp operating hole switch lock mechanism lockdown or not state.

Description

Technical Field

[0001] This utility model relates to the field of locks for high-voltage switchgear, specifically to an interlocking device for an operating mechanism with auxiliary contact output. Background Technology

[0002] Motor start-stop switches are installed inside high-voltage switchgear. As a key switch in high-voltage switchgear, existing technology generally provides a switch lock for the motor start-stop switch. This lock prevents accidental operation by locking the corresponding switch operation hole on the front side of the high-voltage switchgear. Specifically, when the switch lock is locked, the locking tongue inserts into the side of the switch operation hole, preventing the operating rod from entering the operation hole, thus achieving the locking function.

[0003] However, existing switches and locks are merely mechanical devices without any electrical linkage. The control system cannot know whether the switch or lock is locked or not, making it difficult to monitor and perform more control functions. Utility Model Content

[0004] The technical problem this utility model aims to solve is to overcome existing defects and provide an interlocking device for an operating mechanism with auxiliary contact output. The operator can pull the switch lock plate and latch to the right by moving the operating column with one hand, while inserting the operating lever into the switch operating hole with the other hand to control the motor start / stop switch. When the operating lever leaves the switch operating hole, the tension of the spring causes the latch to automatically reset. When the latch is pulled open to the right, the interlocking contact mechanism and the interlock release trigger mechanism work together to connect terminal two and terminal one, enabling the high-voltage switchgear control system to monitor the locking status of the operating hole switch lock mechanism. This effectively solves the problems in the background technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an interlocking device for an operating mechanism with auxiliary contact output, comprising a lock box, wherein a horizontal through groove is provided at the front left end of the lock box, and further comprising: The operating hole switch lock mechanism includes a switch lock slide plate, an operating column, a horizontal guide groove, a guide post, and a lock tongue. The switch lock slide plate is located on the left side of the lock box. Two horizontal guide grooves are opened on the switch lock slide plate. Two guide posts are fixedly connected to the left side of the lock box. The two guide posts are slidably connected to the two horizontal guide grooves respectively. A horizontal lock tongue is fixedly connected to the left side of the switch lock slide plate. The lock tongue passes through the tongue hole on the left side of the lock box. An operating column is fixedly connected to the front side of the switch lock slide plate at the position corresponding to the horizontal through groove. The front end of the operating column passes through the horizontal through groove. A bolt spring-loaded locking control mechanism is installed inside the top of the lock box, and the bolt spring-loaded locking control mechanism is connected to the top of the switch plate. The interlocking contact mechanism is installed on the right side inside the lock box, and the top of the interlocking contact mechanism is connected to the interlocking release trigger mechanism.

[0006] The front of the high-voltage switchgear features a high-voltage switchgear panel with a rectangular mounting slot. A lock box is installed within this slot. A switch operation hole is located to the left of the mounting slot on the front of the switchgear panel. A motor start / stop switch is installed on the rear of the panel, corresponding to the switch operation hole. The left end of the locking tongue is inserted into the switch operation hole from the right side. This prevents the operator from directly inserting an external operating lever to operate the motor start / stop switch, thus locking it. To operate the switch, the operating column is moved to the right, causing the switch lock plate and locking tongue to move to the right. A horizontal guide groove and guide column guide and limit the movement of the switch lock plate, ensuring smooth movement. The locking tongue moves to the right... When the switch operating hole is withdrawn from the side, the operator can insert the external operating lever into the switch operating hole to control the motor start / stop switch. At this time, the interlocking release trigger mechanism can activate the circuit in the interlocking contact mechanism. The interlocking contact mechanism is electrically connected to the control system of the high-voltage switchgear. The activation of the circuit in the interlocking contact mechanism allows the control system of the high-voltage switchgear to know whether the operating hole switch lock mechanism is locked or not. That is: when the locking tongue moves to the right and withdraws from the switch operating hole, the circuit in the interlocking contact mechanism is broken, and the control system exits the motor switching state. At this time, the operating handle can be inserted for manual operation of the switch; when the manual operating lever is withdrawn from the operating hole, the locking tongue automatically moves to the left to block the switch operating hole, the circuit in the interlocking contact mechanism is activated, and the motor control system automatically returns to the switching state. After operation, pull the operating lever out of the switch operating hole. The lock tongue elastic locking control mechanism will pull the switch lock plate and lock tongue to the left again, and the lock tongue will re-insert into the switch operating hole, thus preventing the operating lever from inserting into the switch operating hole to operate the motor start / stop switch.

[0007] Furthermore, the operating hole switch lock mechanism also includes an anti-loosening nut and a washer. The rear end of the guide post is threaded with an anti-loosening nut, and the section of the guide post located between the anti-loosening nut and the switch lock slide plate is fitted with a washer. The anti-loosening nut prevents the switch lock slide plate from detaching from the guide post, and the washer prevents the anti-loosening nut from directly rubbing against the switch lock slide plate, filling the gap between the anti-loosening nut and the switch lock slide plate, thus promoting the smooth lateral movement of the switch lock slide plate.

[0008] Furthermore, the latch elastic locking control mechanism includes a support, mounting bolt one, a tension spring, a crossbar, a locking nut, and mounting bolt two. The support is fixedly connected to the left end of the lock box, and the top of the support is threaded with vertical mounting bolt one. A crossbar is fixedly connected to the top of the right end of the switch lock slide plate, and vertical mounting bolt two is inserted through the middle of the crossbar. Locking nuts are threaded to the upper and lower sides of mounting bolt two, respectively. Mounting bolt two is connected to one end of the tension spring, and the other end of the tension spring is connected to mounting bolt one. Mounting bolt two and mounting bolt one connect the two ends of the tension spring. When the operating column is used to move the switch lock slide plate and latch to the right, the crossbar moves to the right with the switch lock slide plate, stretching the tension spring. After releasing the operating column, the tension spring returns to its original position and shortens, pulling the switch lock slide plate and latch to the left again via the crossbar, causing the latch to re-insert into the switch operating hole from the side, locking the switch operating hole.

[0009] Furthermore, the interlocking contact mechanism includes a mounting base, fixing bolts, a contact box, and a contact assembly. The mounting base is fixedly connected to the middle of the right end of the lock box. The mounting base is fixedly connected to the top of the contact box by two fixing bolts. The contact assembly is installed inside the contact box. The fixing bolts enable detachable installation of the contact box and the mounting base, with the contact box serving as the main body for installing the contact assembly.

[0010] Furthermore, the contact assembly includes pillars, a trigger insulating plate, a first movable contact, a second movable contact, a wire, a first stationary contact, a second stationary contact, an insulating fixing plate, a second terminal, and a first terminal. Two pillars are fixedly connected to the top two sides of the contact box. Sliding holes on both sides of the trigger insulating plate are slidably connected to the two pillars. The bottom ends of the trigger insulating plate are respectively provided with the first movable contact and the second movable contact. The first movable contact is connected to the second movable contact via a wire. An insulating fixing plate is installed at the bottom of the contact box. The top ends of the insulating fixing plate are respectively provided with the first stationary contact and the second stationary contact. The first stationary contact is located directly below the first movable contact, and the second stationary contact is located directly below the second movable contact. The bottom ends of the contact box are respectively provided with the second terminal and the first terminal. The top of the second terminal is connected to the second stationary contact, and the top of the first terminal is connected to the first stationary contact. The second terminal is connected to the negative terminal of the control system via a negative wire, and the first terminal is connected to the positive terminal of the control system via a positive wire.

[0011] Furthermore, the interlocking release trigger mechanism includes an arc-shaped trigger plate, a movable arm, a roller, a circular sleeve, a trigger slide, and a compression spring. The top left end of the contact box is movably connected to one end of the movable arm, and the other end of the movable arm is rotatably connected to the roller. A circular sleeve is installed at the top center of the contact box, and a trigger slide is inserted inside the circular sleeve. The inner diameter of the circular sleeve is larger than the diameter of the trigger slide. The bottom end of the trigger slide is movably connected to the top center of the trigger insulating plate through a pin. The top of the trigger slide is movably connected to the lower side of the movable arm through a pin. A compression spring is sleeved on the column section of the trigger slide located between the movable arm and the circular sleeve. An arc-shaped trigger plate is integrally formed and connected to the right end of the horizontal bar, and the right end of the arc-shaped trigger plate is bent upward.

[0012] The inner diameter of the circular sleeve allows the trigger slide to swing left and right, moving the operating column to the right, which in turn moves the switch lock slide plate and the latch to the right. The switch lock slide plate also moves the horizontal bar and the arc-shaped trigger plate to the right. The arc surface at the bottom of the arc-shaped trigger plate is connected to the roller, which pushes the right end of the movable arm downward, thereby pushing the trigger slide downward. The trigger slide pushes the trigger insulating plate downward along the column. At this time, stationary contact one and movable contact one are in contact and conducting electricity, and stationary contact two and movable contact two are in contact and conducting electricity. Terminal one, stationary contact one, movable contact one, wire, movable contact two, stationary contact two, and terminal two form a conductive loop. The control system can know that the operating hole switch lock mechanism has been unlocked, that is, the latch has opened the switch operating hole, when released. The operating column, the tension of the tension spring causes the switch lock slide plate, latch, crossbar, and arc-shaped trigger plate to move to the left. The arc surface at the bottom of the arc-shaped trigger plate no longer applies pressure to the roller, the compression spring returns to its original position and extends, pushing the right end of the movable arm upward, thereby causing the trigger slide and trigger insulating plate to move upward along the column. Movable contact one moves upward away from stationary contact one, and movable contact two moves upward away from stationary contact two. The loop formed by terminal one, stationary contact one, movable contact one, wire, movable contact two, stationary contact two, and terminal two is broken. The control system can know that the operating hole switch lock mechanism has been locked through the broken loop, that is, the latch has been inserted into the switch operating hole from the side. The method of the control system to obtain the locking status of the operating hole switch lock mechanism by whether the loop is open or closed adopts the existing technology.

[0013] Furthermore, the system also includes a lock box mounting assembly, which comprises a first fixing plate, a second fixing plate, and fixing nuts. The first fixing plate is fixedly connected to the rear right end of the lock box, and the second fixing plate is fixedly connected to the rear left end of the lock box. Fixing nuts are embedded in both the first and second fixing plates. The first fixing plate has a fixing nut at its upper and lower ends, and the second fixing plate has a fixing nut in its middle section. The lock box can be installed on the front side of the high-voltage switchgear using the cooperation of bolts and fixing nuts.

[0014] Compared with existing technologies, the advantages of this interlocking device for operating mechanisms with auxiliary contact outputs are: 1. The interlocking device of the operating mechanism with auxiliary contact output moves the operating column to the right, thereby driving the switch lock slide and the lock tongue to move to the right. The switch lock slide also drives the horizontal bar and the arc-shaped trigger plate to move to the right. The arc surface at the bottom of the arc-shaped trigger plate is connected to the roller. The roller pushes the right end of the movable arm to move down, thereby pushing the trigger slide column to move down. The trigger slide column pushes the trigger insulating plate to move down along the column. At this time, stationary contact one and movable contact one are in contact and conducting electricity, and stationary contact two and movable contact two are in contact and conducting electricity. Terminal one, stationary contact one, movable contact one, wire, movable contact two, stationary contact two and terminal two form a conductive loop. The control system can know that the operating hole switch lock mechanism has been unlocked by connecting the loop.

[0015] 2. The interlocking device of the operating mechanism with auxiliary contact output allows the operator to pull the switch lock slide and lock tongue to the right by turning the operating column to the right with one hand, while inserting the operating lever into the switch operating hole with the other hand to control the motor start and stop switch. When the operating lever leaves the switch operating hole, the tension of the tension spring causes the lock tongue to automatically reset. When the lock tongue is pulled open to the right, the interlocking contact mechanism and the interlock release trigger mechanism work together to connect terminal two and terminal one, enabling the control system of the high-voltage switchgear to know whether the operating hole switch lock mechanism is locked or not. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the rear structure of this utility model; Figure 3 This utility model Figure 2 A magnified view of the structure at point A in the middle; Figure 4 This is a schematic diagram of the structure of this utility model in use; In the diagram: 1. Lock box; 2. Horizontal through groove; 3. Operating hole switch lock mechanism; 31. Switch lock slide plate; 32. Operating column; 33. Horizontal guide groove; 34. Guide column; 35. Anti-loosening nut; 36. Washer; 37. Lock tongue; 4. Lock tongue elastic locking control mechanism; 41. Support; 42. Mounting bolt one; 43. Tension spring; 44. Horizontal bar; 45. Locking nut; 46. Mounting bolt two; 5. Interlocking contact mechanism; 51. Mounting base; 52. Fixing bolt; 53. Contact box; 54. Column; 55. Trigger insulation plate; 56. Movable contact one; 57. 58. Active contact 2, 59. Wire, 510. Stationary contact 1, 511. Insulating fixing plate, 512. Terminal block 2, 513. Terminal block 1, 6. Interlock release trigger mechanism, 61. Arc-shaped trigger plate, 62. Movable seat, 63. Movable shaft, 64. Movable arm, 65. Roller, 66. Circular sleeve, 67. Trigger slide, 68. Compression spring, 7. Lock box mounting assembly, 71. Fixing plate 1, 72. Fixing plate 2, 73. Fixing nut, 8. High voltage switch cabinet panel, 9. Switch operation hole, 10. Motor start / stop switch. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Example 1, please refer to Figures 1 to 4 This utility model provides a technical solution: an interlocking device for an operating mechanism with auxiliary contact output, including a lock box 1, a horizontal through groove 2 on the front left end of the lock box 1, and also including an operating hole switch lock mechanism 3, a lock tongue elastic locking control mechanism 4 and an interlocking contact mechanism 5.

[0019] The operating hole switch lock mechanism 3 includes a switch lock slide plate 31, an operating column 32, a horizontal guide groove 33, a guide column 34, and a lock tongue 37. The switch lock slide plate 31 is provided on the left side of the lock box 1. Two horizontal guide grooves 33 are provided on the switch lock slide plate 31. Two guide columns 34 are fixedly connected to the left side of the lock box 1. The two guide columns 34 are slidably connected to the two horizontal guide grooves 33 respectively. A horizontal lock tongue 37 is fixedly connected to the left side of the switch lock slide plate 31. The lock tongue 37 passes through the tongue hole on the left side of the lock box 1. An operating column 32 is fixedly connected to the front side of the switch lock slide plate 31 at the position corresponding to the horizontal through groove 2. The front end of the operating column 32 passes through the horizontal through groove 2. The operating hole switch lock mechanism 3 also includes an anti-loosening nut 35 and a washer 36. The rear end of the guide post 34 is threadedly connected to the anti-loosening nut 35, and the section of the guide post 34 located between the anti-loosening nut 35 and the switch lock slide plate 31 is fitted with a washer 36. The anti-loosening nut 35 prevents the switch lock slide plate 31 from detaching from the guide post 34, and the washer 36 prevents the anti-loosening nut 35 from directly rubbing against the switch lock slide plate 31, filling the gap between the anti-loosening nut 35 and the switch lock slide plate 31, thus promoting the smooth lateral movement of the switch lock slide plate 31.

[0020] The bolt spring-loaded locking control mechanism 4 is installed inside the top of the lock box 1, and the bolt spring-loaded locking control mechanism 4 is connected to the top of the switch lock slide plate 31; The latch elastic locking control mechanism 4 includes a support 41, mounting bolt 1 42, tension spring 43, crossbar 44, locking nut 45, and mounting bolt 2 46. The support 41 is fixedly connected to the left end of the lock box 1. The top of the support 41 is threaded with a vertical mounting bolt 1 42. The top of the right end of the switch lock slide plate 31 is fixedly connected with a crossbar 44. A vertical mounting bolt 2 46 is inserted through the middle of the crossbar 44. The mounting bolt 2 46 is threaded with a locking nut 45 at the upper and lower sides of the crossbar 44. The mounting bolt 2 46 is connected to one end of the tension spring 43, and the other end of the tension spring 43 is connected to the mounting bolt 1 42. Mounting bolt 46 and mounting bolt 42 connect the two ends of the tension spring 43. When the operating column 32 drives the switch lock slide 31 and the locking tongue 37 to move to the right, the horizontal bar 44 moves to the right along with the switch lock slide 31, and the tension spring 43 is stretched. After the operating column 32 is released, the tension spring 43 returns to its original position and shortens. It then pulls the switch lock slide 31 and the locking tongue 37 to the left again through the horizontal bar 44, so that the locking tongue 37 is reinserted into the switch operating hole 9 from the side, locking the switch operating hole 9.

[0021] The interlocking contact mechanism 5 is installed at the right end inside the lock box 1, and the top of the interlocking contact mechanism 5 is connected to the interlocking release trigger mechanism 6.

[0022] The interlocking contact mechanism 5 includes a mounting base 51, fixing bolts 52, a contact box 53, and contact components. The mounting base 51 is fixedly connected to the middle of the right end of the lock box 1. The mounting base 51 is fixedly connected to the top of the contact box 53 by two fixing bolts 52. The contact components are installed inside the contact box 53. The fixing bolts 52 enable the contact box 53 to be detachably installed from the mounting base 51. The contact box 53 serves as the main body for installing the contact components. The contact box 53 can be made of insulating material and can be a plastic box.

[0023] The contact assembly includes a column 54, a trigger insulating plate 55, a first movable contact 56, a second movable contact 57, a wire 58, a first stationary contact 59, a second stationary contact 510, an insulating fixing plate 511, a second terminal 512, and a first terminal 513. Two columns 54 are fixedly connected to the top sides of the contact box 53. Sliding holes on both sides of the trigger insulating plate 55 are slidably connected to the two columns 54. The bottom ends of the trigger insulating plate 55 are respectively provided with a first movable contact 56 and a second movable contact 57. The first movable contact 56 is connected to a wire 58. 8. Connecting movable contact 57, an insulating fixing plate 511 is installed at the bottom of the contact box 53. Static contact 59 and static contact 510 are respectively located at the top two ends of the insulating fixing plate 511. Static contact 59 is located directly below movable contact 56, and static contact 510 is located directly below movable contact 57. Terminal 2 512 and terminal 513 are respectively located at the bottom two ends of the contact box 53. The top of terminal 2 512 is connected to static contact 510, and the top of terminal 1 513 is connected to static contact 59. Terminal 2 512 is connected to the negative terminal of the control system via a negative wire, and terminal 1 513 is connected to the positive terminal of the control system via a positive wire.

[0024] The interlocking release trigger mechanism 6 includes an arc-shaped trigger plate 61, a movable arm 64, a roller 65, a circular sleeve 66, a trigger slide 67, and a compression spring 68. The top left end of the contact box 53 is movably connected to one end of the movable arm 64, and the other end of the movable arm 64 is rotatably connected to the roller 65. The circular sleeve 66 is installed at the top center of the contact box 53, and the trigger slide 67 is inserted inside the circular sleeve 66. The inner diameter of the circular sleeve 66 is larger than the diameter of the trigger slide 67. The bottom end of the trigger slide 67 is movably connected to the top center of the trigger insulating plate 55 through a pin. The top of the trigger slide 67 is movably connected to the lower side of the movable arm 64 through a pin. The section of the trigger slide 67 located between the movable arm 64 and the circular sleeve 66 is fitted with a compression spring 68. The right end of the horizontal bar 44 is integrally formed with the arc-shaped trigger plate 61, and the right end of the arc-shaped trigger plate 61 is bent upward.

[0025] Specifically, the interlock release trigger mechanism 6 also includes a movable seat 62 and a movable shaft 63. The movable seat 62 is fixedly connected to the top left end of the contact box 53, and the movable seat 62 is movably connected to the end of the movable arm 64 through the movable shaft 63.

[0026] The inner diameter of the sleeve 66 allows the trigger slide 67 to sway left and right, moving the operating column 32 to the right, thereby causing the switch lock slide plate 31 and the lock tongue 37 to move to the right. The switch lock slide plate 31 also causes the crossbar 44 and the arc-shaped trigger plate 61 to move to the right. The arc surface at the bottom of the arc-shaped trigger plate 61 is connected to the roller 65, which pushes the right end of the movable arm 64 downward through the roller 65, thereby pushing the trigger slide 67 downward. The trigger slide 67 pushes the trigger insulating plate 55 along the column 54. When the switch moves downwards, stationary contact 59 and moving contact 56 become conductive, and stationary contact 510 and moving contact 57 become conductive. Terminal 513, stationary contact 59, moving contact 56, wire 58, moving contact 57, stationary contact 510, and terminal 512 form a conductive loop. The control system can determine that the operating hole switch lock mechanism 3 has been unlocked, i.e., the latch 37 has opened the switch operating hole 9, when... Releasing the operating column 32 causes the tension of the stretching spring 43 to move the switch lock slide plate 31, the latch 37, the crossbar 44, and the arc-shaped trigger plate 61 to the left. The arc surface at the bottom of the arc-shaped trigger plate 61 no longer applies pressure to the roller 65. The compression spring 68 returns to its original position and extends, pushing the right end of the movable arm 64 upward. This causes the trigger slide column 67 and the trigger insulating plate 55 to move upward along the column 54. The movable contact 1 56 moves upward away from the stationary contact 1 59, and the movable contact 2 57 moves upward away from the stationary contact 2 510. The loop formed by the terminal 1 513, the stationary contact 1 59, the movable contact 1 56, the wire 58, the movable contact 2 57, the stationary contact 2 510, and the terminal 2 512 is broken. The control system can know that the operating hole switch lock mechanism 3 has been locked through the broken loop, that is, the latch 37 has been inserted into the switch operating hole 9 from the side. The method of the control system to obtain the locked state of the operating hole switch lock mechanism 3 by the continuity of the loop adopts the existing technology.

[0027] In practical use, a high-voltage switchgear panel 8 is provided on the front side of the high-voltage switchgear. A rectangular mounting slot is provided on the high-voltage switchgear panel 8, and the lock box 1 is installed in the rectangular mounting slot. A switch operation hole 9 is provided on the left side of the high-voltage switchgear panel 8 at the position of the rectangular mounting slot. A motor start / stop switch 10 is installed on the rear side of the high-voltage switchgear panel 8 corresponding to the position of the switch operation hole 9. The left end of the locking tongue 37 is inserted into the switch operation hole 9 from the right side. At this time, the operator cannot directly insert the external operating rod into the switch operation hole 9 to operate the motor start / stop switch 10, thus achieving the locking effect of the motor start / stop switch 10. When it is necessary to operate the motor start / stop switch 10, the operating column 32 is moved to the right, thereby driving the switch lock slide plate 31 and the locking tongue 37 to move to the right. The horizontal guide groove 33 and the guide column 34 cooperate to control the movement direction of the switch lock slide plate 31. The guide limit ensures smooth movement. When the locking tongue 37 moves to the right, it exits the switch operation hole 9 from the side. At this time, the operator can insert the external operating rod into the switch operation hole 9 to control the motor start / stop switch 10. At this time, the interlock release trigger mechanism 6 can make the circuit in the interlock contact mechanism 5 conduct. The interlock contact mechanism 5 is electrically connected to the control system of the high-voltage switchgear. The conduction of the circuit in the interlock contact mechanism 5 allows the control system of the high-voltage switchgear to know whether the operation hole switch lock mechanism is locked or not. That is: when the locking tongue 37 moves to the right and exits the switch operation hole 9, the circuit in the interlock contact mechanism 5 is conducted, and the control system can know that the operation hole switch lock mechanism has been unlocked. When the locking tongue 37 moves to the left and blocks the switch operation hole 9, the circuit in the interlock contact mechanism 5 is disconnected, and the control system can know that the operation hole switch lock mechanism has been locked. After the operation is completed, the operating lever is pulled out from the switch operation hole 9. The lock tongue elastic locking control mechanism 4 pulls the switch lock slide plate 31 and the lock tongue 37 to the left again. The lock tongue 37 is reinserted into the switch operation hole 9, which again prevents the operating lever from being inserted into the switch operation hole 9 to operate the motor start / stop switch 10.

[0028] The loop formed by terminal block 513, stationary contact 59, movable contact 56, wire 58, movable contact 57, stationary contact 510, and terminal block 512 sends signals to the control system of the high-voltage switchgear, indicating the status of the interlocking device. When the interlocking device is mechanically locked, i.e., the left end of the locking tongue 37 is inserted into the switch operating hole 9 from the right side, the manual operating hole is blocked, the motor control circuit is connected, and the motor automatically returns to the switching state. When the interlocking device is mechanically opened, i.e., the left end of the locking tongue 37 is withdrawn from the right side of the switch operating hole 9, the motor control circuit is disconnected, the switchgear operating hole is opened, and the operating handle can be inserted for manual closing and opening operations. Through this device, the mechanical and electrical linkage of starting and stopping the high-voltage switchgear motor is realized.

[0029] Example 2, please refer to Figures 1 to 4This utility model provides a technical solution: an interlocking device for an operating mechanism with auxiliary contact output. This embodiment is structurally similar to Embodiment 1, with the difference being: A lock box mounting assembly 7 is also provided. The lock box mounting assembly 7 includes a first fixing plate 71, a second fixing plate 72, and a fixing nut 73. The first fixing plate 71 is fixedly connected to the rear right end of the lock box 1, and the second fixing plate 72 is fixedly connected to the rear left end of the lock box 1. Fixing nuts 73 are embedded in both the first fixing plate 71 and the second fixing plate 72. A fixing nut 73 is provided at the top and bottom ends of the first fixing plate 71, and a fixing nut 73 is provided in the middle of the second fixing plate 72. With the cooperation of bolts and fixing nuts 73, the lock box 1 can be installed on the front side of the high-voltage switchgear, which enables the lock box 1 to be detachably installed from the high-voltage switchgear.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An interlocking device for an operating mechanism with auxiliary contact output, comprising a lock box (1), wherein a horizontal through groove (2) is provided at the front left end of the lock box (1), characterized in that, Also includes: The operating hole switch lock mechanism (3) includes a switch lock slide plate (31), an operating column (32), a horizontal guide groove (33), a guide column (34), and a lock tongue (37). The switch lock slide plate (31) is provided on the left side of the lock box (1). Two horizontal guide grooves (33) are opened on the switch lock slide plate (31). Two guide columns (34) are fixedly connected to the left side of the lock box (1). The two guide columns (34) are slidably connected to the two horizontal guide grooves (33) respectively. A horizontal lock tongue (37) is fixedly connected to the left side of the switch lock slide plate (31). The lock tongue (37) passes through the tongue hole on the left side of the lock box (1). An operating column (32) is fixedly connected to the front side of the switch lock slide plate (31) at the position corresponding to the horizontal through groove (2). The front end of the operating column (32) passes through the horizontal through groove (2). A bolt elastic locking control mechanism (4) is installed inside the top of the lock box (1), and the bolt elastic locking control mechanism (4) is connected to the top of the switch lock slide plate (31); The interlocking contact mechanism (5) is installed on the right side inside the lock box (1), and the top of the interlocking contact mechanism (5) is connected to the interlocking release trigger mechanism (6).

2. The interlocking device for an operating mechanism with auxiliary contact output according to claim 1, characterized in that: The operating hole switch lock mechanism (3) also includes an anti-loosening nut (35) and a washer (36). The rear end of the guide post (34) is threaded with the anti-loosening nut (35), and the section of the guide post (34) between the anti-loosening nut (35) and the switch lock slide plate (31) is fitted with a washer (36).

3. The interlocking device for an operating mechanism with auxiliary contact output according to claim 1, characterized in that: The locking tongue elastic locking control mechanism (4) includes a support (41), mounting bolt one (42), tension spring (43), horizontal bar (44), locking nut (45) and mounting bolt two (46). The support (41) is fixedly connected to the left end of the lock box (1). The top of the support (41) is threaded with a vertical mounting bolt one (42). The top of the right end of the switch lock slide plate (31) is fixedly connected with a horizontal bar (44). The middle of the horizontal bar (44) is interspersed with a vertical mounting bolt two (46). The mounting bolt two (46) is threaded with a locking nut (45) at the upper and lower sides of the horizontal bar (44). The mounting bolt two (46) is connected to one end of the tension spring (43), and the other end of the tension spring (43) is connected to the mounting bolt one (42).

4. The interlocking device for an operating mechanism with auxiliary contact output according to claim 3, characterized in that: The interlocking contact mechanism (5) includes a mounting base (51), fixing bolts (52), a contact box (53), and a contact assembly. The mounting base (51) is fixedly connected to the middle of the right end of the lock box (1). The mounting base (51) is fixedly connected to the top of the contact box (53) by two fixing bolts (52). The contact assembly is installed inside the contact box (53).

5. The interlocking device for an operating mechanism with auxiliary contact output according to claim 4, characterized in that: The contact assembly includes a column (54), a trigger insulating plate (55), a first movable contact (56), a second movable contact (57), a wire (58), a first stationary contact (59), a second stationary contact (510), an insulating fixing plate (511), a second terminal (512), and a first terminal (513). Two columns (54) are fixedly connected to the top sides of the contact box (53). The sliding holes on both sides of the trigger insulating plate (55) are slidably connected to the two columns (54). The bottom ends of the trigger insulating plate (55) are respectively provided with a first movable contact (56) and a second movable contact (57). The first movable contact (56) is connected to the wire. (58) Connect the active contact 2 (57). An insulating fixing plate (511) is installed at the bottom of the contact box (53). The top two ends of the insulating fixing plate (511) are respectively provided with stationary contact 1 (59) and stationary contact 2 (510). Stationary contact 1 (59) is located directly below the active contact 1 (56), and stationary contact 2 (510) is located directly below the active contact 2 (57). The bottom two ends of the contact box (53) are respectively provided with terminal 2 (512) and terminal 1 (513). The top of terminal 2 (512) is connected to stationary contact 2 (510), and the top of terminal 1 (513) is connected to stationary contact 1 (59).

6. The interlocking device for an operating mechanism with auxiliary contact output according to claim 5, characterized in that: The interlock release trigger mechanism (6) includes an arc-shaped trigger plate (61), a movable arm (64), a roller (65), a circular sleeve (66), a trigger slide (67), and a compression spring (68). The top left end of the contact box (53) is movably connected to one end of the movable arm (64), and the other end of the movable arm (64) is rotatably connected to the roller (65). A circular sleeve (66) is installed at the top center of the contact box (53), and a trigger slide (67) is inserted inside the circular sleeve (66). The inner diameter of the sleeve (66) is larger than the diameter of the trigger slide (67). The bottom end of the trigger slide (67) is movably connected to the top center of the trigger insulating plate (55) through a pin. The top of the trigger slide (67) is movably connected to the lower side of the movable arm (64) through a pin. The column segment of the trigger slide (67) located between the movable arm (64) and the sleeve (66) is fitted with a compression spring (68). The right end of the crossbar (44) is integrally formed and connected to an arc-shaped trigger plate (61).

7. The interlocking device for an operating mechanism with auxiliary contact output according to claim 1, characterized in that: It also includes a lock box mounting assembly (7), which includes a fixing plate one (71), a fixing plate two (72) and a fixing nut (73). The right rear end of the lock box (1) is fixedly connected to the fixing plate one (71), and the left rear end of the lock box (1) is fixedly connected to the fixing plate two (72). The fixing plate one (71) and the fixing plate two (72) are both inlaid with fixing nuts (73).

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