Electrically operated mechanism with interlock

Abstract

The application discloses a kind of electric operating mechanism with interlock, motor drives main shaft rotation, main shaft rotation drives driving block left and right movement, driving block left and right movement drives operating handle left and right action to realize combination brake, driving block outside is provided with detent, detent is with for blocking driving block blocker, the outside of detent is correspondingly provided with interlock swing piece erected on shell frame, interlock swing piece is driven to rotate, interlock swing piece is with positioning rod, positioning rod is pushed in and is clamped into the positioning portion of detent in the process of interlock swing piece swing, after pushing, it makes detent swing and drives blocker to be clamped in the left and right movement direction of driving block, and in the mode for preventing driving block to move, operation locking is realized, and operation locking state includes the double interruption of electric and manual operation.The electric operating mechanism of the application realizes interlock to operating mechanism with simple and efficient mechanism.

Description

Technical Field

[0001] This invention relates to an interlocked electric operating mechanism, particularly an interlocked electric operating mechanism for operating low-voltage electrical appliances such as circuit breakers. Its main application is to be installed on low-voltage electrical equipment with a swing handle, thereby driving and interlocking the handle by swinging it back and forth. Background Technology

[0002] Utility model patent document CN201149964Y discloses an electric operating mechanism with mechanical interlocking, the structure of which is as follows: The mechanism is mounted on the drawer bottom plate. A cylindrical cam groove is placed within a bearing seat pin mounted on the drawer divider plate. The operating shaft is fitted into the central hole of the cylindrical cam. A positioning steel ball is riveted to the front end of the cylindrical cam. A locking mechanism mounting bracket and a locking rod positioning bracket are mounted on the left side of the mechanism mounting bracket. A push rod fixing sleeve is mounted on the locking mechanism mounting bracket. The push rod and locking rod are connected in a cross shape. The left side of the locking rod is placed in the locking rod stroke groove, and the right side is connected to the locking disc shaft groove. A two-open, two-closed micro switch is also mounted on the mechanism mounting bracket. The interlocking structure of this operating mechanism is relatively complex, and the locking operation is difficult to achieve through a fully open structure, making operation extremely inconvenient. Summary of the Invention

[0003] In view of the shortcomings of the prior art, the technical problem to be solved by the present invention is to provide an interlocked electric operating mechanism, which can realize the interlocking of the operating mechanism in a simpler and more efficient manner.

[0004] Therefore, the present invention is implemented using the following technical solution:

[0005] An interlocked electric operating mechanism includes a housing, a motor and a drive block driven by the motor are disposed inside the housing. The motor drives a main shaft to rotate, and the rotation of the main shaft causes the drive block to move left and right. The left and right movement of the drive block causes the operating handle to move left and right to realize the closing and opening of the circuit breaker. A locking member is disposed on the outside of the drive block. The locking member is equipped with a swing guide mechanism and an elastic reset mechanism. The locking member has a positioning part on the side away from the drive block. The locking member has a blocking member for blocking the drive block. The swing guide mechanism guides the locking member to swing back and forth in the horizontal direction. The elastic reset mechanism pushes the locking member to swing outward. An interlocked swing member is disposed on the outside of the locking member and mounted on the housing frame. The interlocked swing member is driven by rotation. The interlocked swing member has a positioning rod. During the swing of the interlocked swing member, the positioning rod pushes inward and locks into the positioning part. During the pushing process, the locking member swings inward and causes the blocking member to lock in the left and right movement direction of the drive block, thereby locking the operation by preventing the drive block from moving.

[0006] Preferably, the main shaft has a mating groove into which an operating handle can be inserted. The operating handle can be manually rotated when inserted into the mating groove. The upper end of the interlocking swing member has a knob that protrudes upwards from the cover.

[0007] Preferably, the swing guide mechanism includes an upper clamping plate and a lower clamping plate on the locking member facing the driving block, and the inner frame of the housing has a guide support plate inserted between the upper clamping plate and the lower clamping plate. The elastic reset mechanism includes a spring, with both ends of the spring respectively sleeved on the inner sleeve rod of the guide support plate and the outer sleeve rod inside the locking member. One end of the locking member is pivotally connected to the inner frame of the housing, and the pivotally connected end of the locking member is separated from the positioning rod on the left and right. The front side of the locking member has a locking block, and the inner frame has a blocking part that blocks the locking block, preventing the locking member from swinging outward.

[0008] Preferably, the transmission mechanism is disposed within the transmission mechanism cover plate, the transmission mechanism base plate, and the surrounding plate. The guide support plate is the transmission mechanism cover plate. The transmission mechanism cover plate has a relief groove on the side facing the locking member. The inner sleeve rod protrudes outward from the middle of the relief groove. The transmission mechanism cover plate is inserted between the upper clamping plate and the lower clamping plate. The inner side of the locking member has an outer sleeve rod located between the upper clamping plate and the lower clamping plate. The two ends of the spring are respectively sleeved on the inner sleeve rod and the outer sleeve rod.

[0009] Preferably, the interlocking swing member is further provided with a blocking plate. During the rotation of the interlocking swing member, the positioning rod is simultaneously engaged with the positioning part and the blocking plate enters below the test button. When the blocking plate is below the test button, it prevents the test button from being pressed down.

[0010] Preferably, the blocking plates are arranged in an arc shape, located below the positioning rod and vertically offset, and the blocking plates are positioned in front of the positioning rod in the direction of locking of the interlocking swing member.

[0011] Preferably, the main shaft is equipped with a toggle element, and the end of the toggle element is equipped with a toggle post. The toggle post is located in the toggle groove of the drive block. The rotation of the main shaft causes the toggle element and the toggle post to swing. During the swinging process, the toggle post causes the drive block to move back and forth.

[0012] Preferably, the drive block guiding mechanism includes at least two guide rods, with each side of the drive block respectively sleeved on at least one guide rod.

[0013] Preferably, the main shaft has a mating groove into which an operating handle can be inserted. The operating handle can be manually rotated when inserted into the mating groove. A movable cover plate is covered above the mating groove. The movable cover plate has a toggle switch that passes through a track groove on the cover. During the movement of the movable cover plate, a micro switch is triggered to indicate the open or closed state of the manual socket.

[0014] Preferably, the locking member is located on the translation path of the movable cover plate. The movable cover plate has an insertion slot corresponding to the mating slot of the operating handle. After the movable cover plate moves forward to the bottom, the insertion slot and the mating slot are aligned. When the positioning rod swings and pushes inward to lock into the positioning part, the locking member swings inward and blocks the movable cover plate, preventing the movable cover plate from reaching the position where the insertion slot and the mating slot can be aligned.

[0015] This invention offers the following technical advantages: Through the simple cooperation of a drive block, a locking component, and an interlocking swing component, it achieves efficient interlocking, locking the main shaft driving the drive block from the source, thus achieving interlocking in both manual and electric paths. Simultaneously, the interlocking swing component's movement of the locking component locks the drive block, and the cover plate shields the mating groove on the operating handle. This locks the electric drive due to the blocking component, while also preventing the manual drive handle from inserting into the mating groove, thus achieving locking as well. Therefore, its interlocking mechanism is more efficient and safer, providing multiple layers of protection. Attached Figure Description

[0016] The present invention includes the following figures:

[0017] Figure 1 This is a schematic diagram of the structure of the interlocked electric operating mechanism provided by the present invention after it is assembled on a circuit breaker.

[0018] Figure 2 for Figure 1 A schematic diagram of the electric operating mechanism after the face cover has been removed.

[0019] Figure 3 for Figure 2 A top view of the electric operating mechanism after the cover plate has been removed.

[0020] Figure 4 for Figure 3 A three-dimensional structural diagram of the electric operating mechanism after the indicator plate and transmission mechanism cover plate have been removed.

[0021] Figure 5 for Figure 4 A top-down view.

[0022] Figure 6 for Figure 4 A three-dimensional structural diagram of the electric operating mechanism after the base plate and enclosure plate of the transmission mechanism have been removed.

[0023] Figure 7 for Figure 6 A three-dimensional structural diagram of the electric operating mechanism after the upper side shell has been removed.

[0024] Figure 8 for Figure 1 A structural cross-sectional view.

[0025] Figure 9 for Figure 2 A schematic diagram of the electric operating mechanism after the upper side housing has been removed.

[0026] Figure 10 This is a schematic diagram of the interlocked electric operating mechanism provided by the present invention in the unlocked state, with the cover removed in the diagram.

[0027] Figure 11 This is a schematic diagram of the interlocked electric operating mechanism provided by the present invention in a locked state, with the face cover removed in the diagram. Detailed Implementation

[0028] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0029] See attached document Figure 1-11 As shown, this invention provides an interlocked electric operating mechanism, including a housing 1. A motor 2 and a drive block 3 driven by the motor 2 are disposed within the housing 1. The motor 2 drives a main shaft 4 to rotate, which in turn causes the drive block 3 to move left and right. The left and right movement of the drive block 3 causes the operating handle 5 to move left and right to achieve closing and opening of the circuit breaker. A locking member 6 is disposed on the outer side of the drive block 3. The locking member 6 is equipped with a swing guide mechanism and an elastic reset mechanism. The swing guide mechanism guides the locking member to move back and forth in a direction away from and close to the drive block 3 (i.e., swinging inward and outward). The swing guide mechanism also guides the locking member to swing back and forth horizontally. The elastic reset mechanism pushes the locking member to swing outward. The locking member 6 has a positioning part 61 on the side away from the driving block 3. The positioning part 61 is an arc-shaped or V-shaped recess on the surface of the locking member 6. The locking member 6 has a blocking member 62 for blocking the driving block 3. A locking swing member 8 mounted on the frame of the housing 1 is correspondingly provided on the outer side of the locking member 6. The locking swing member 8 is driven by rotation and has a positioning rod 81. During the swinging process of the locking swing member 8, the positioning rod 81 pushes inward and locks into the positioning part 61. During the pushing process, the locking member 6 swings inward and drives the blocking member 62 to lock in the left and right movement direction of the driving block 3, and achieves operation locking by preventing the driving block 3 from moving. The operation locking state includes double blocking of electric and manual operation, that is, realizing the disengagement of the drive mechanism.

[0030] To clearly explain the orientation issue, this application uses the centerline between the interlocking swing member 8 and the locking member 6 as the reference, with the side facing the locking member 6 as "inner" and the side facing the interlocking swing member 8 as "outer".

[0031] Reference Figure 1-4As shown, to enable manual operation, the main shaft 4 has a mating groove 41 into which an operating handle can be inserted for manual rotation. To allow direct rotation control of the interlocking swing member 8 from the control panel, the upper end of the interlocking swing member 8 has a knob 82, which protrudes upwards from the cover 9.

[0032] Reference Figure 2-7 As shown in Figures 9-11, to achieve the swing guidance and stable reset of the locking component, the swing guiding mechanism includes an upper clamping plate 64 and a lower clamping plate 65 on the locking component 6 facing the driving block 3 (the two can be aligned vertically or staggered). The inner frame of the housing 1 has a guide support plate inserted between the upper clamping plate 64 and the lower clamping plate 65. The elastic reset mechanism includes a spring 12, with both ends of the spring 12 respectively sleeved on the inner sleeve rod 72 of the guide support plate and the outer sleeve rod 66 on the inner side of the locking component 6. One end of the locking component 6 is pivotally connected to the inner frame of the housing 1, and the pivot connection end 69 of the locking component 6 is positioned left and right separately from the positioning rod 81 (the left and right directions are attached). Figure 10 , 11 (Observed from left and right); the front side of the locking member 6 has a locking block 67, and the inner frame has a blocking part 68 that blocks the locking block 67, and the blocking part 68 prevents the locking member 6 from continuing to swing outward.

[0033] The transmission mechanism is housed within the transmission mechanism cover plate 101, the transmission mechanism base plate 102, and the surrounding plate 103. The guide support plate is the transmission mechanism cover plate 101. A fixing frame 7 is provided on the transmission mechanism cover plate 101. The fixing frame 7 has a clearance groove 71 on the side facing the locking member 6. An inner sleeve rod 72 protrudes outward from the middle of the clearance groove 71. The locking member 6 has an upper clamping plate 64 and a lower clamping plate 65 protruding from the clearance groove 71. The transmission mechanism cover plate 101 is inserted between the upper clamping plate 64 and the lower clamping plate 65. This structure also serves as a swing guide. The inner side of the locking member has an outer sleeve rod 66 located between the upper clamping plate and the lower clamping plate.

[0034] Reference Figure 3-7 As shown, to accommodate the interlocking of the test button 13, a blocking plate 83 is also provided on the interlocking swing member 8. During the rotation of the interlocking swing member 8, the positioning rod 81 simultaneously engages with the positioning part 61 and the blocking plate 83 moves below the test button 13. The positioning part 61 is an arc-shaped recess or a V-shaped recessed area with a smooth transition at the connection. When the blocking plate 83 is below the test button 13, it prevents the test button 13 from being pressed down. The blocking plate 83 is arc-shaped and is located below the positioning rod 81 with a vertically offset distribution. In the direction of locking of the interlocking swing member 8, the blocking plate 83 is in front of the positioning rod 81.

[0035] Reference Figure 4-7 As shown, in order to achieve flexible driving of the drive block 3, the main shaft 4 is equipped with a toggle member 42, and the end of the toggle member 42 is equipped with a toggle post 43. The toggle post 43 is located in the toggle groove 31 of the drive block 3. The toggle post 43 is usually formed by a rotatable column. The rotation of the main shaft 4 drives the toggle member and the toggle post to swing. During the swinging process, the toggle post 43 drives the drive block 3 to move back and forth. It has a small range of movement space in the toggle groove 31. This movement space ensures that the toggle post can swing to drive the drive block and ensures that it does not disengage from the toggle groove 31.

[0036] Reference Figure 7 As shown, in order to achieve stable guidance of the drive block 3, the drive block guiding mechanism includes at least two guide rods 14, and the two sides of the drive block 3 are respectively sleeved on at least one guide rod 14.

[0037] Reference Figure 2-7 As shown, in order to achieve both interlocking and locking of the mating groove 41 on the main shaft 4, the main shaft 4 has a mating groove 41 into which an operating handle can be inserted. The operating handle can be manually rotated by inserting it into the mating groove 41. A movable cover plate 15 covers the mating groove 41, and the movable cover plate 15 has a toggle switch 151 that passes through the track groove 91 on the faceplate 9. During the movement of the movable cover plate 15, a micro switch 16 is triggered to indicate the open or closed state of the manual socket. The locking member 6 is located on the translational path of the movable cover plate 15. The movable cover plate 15 has an insertion groove 152 corresponding to the mating groove 41 of the operating handle. After the movable cover plate 15 moves forward to the bottom, the insertion groove 152 is aligned with the mating groove 41. When the positioning rod 81 swings and pushes inward to engage the positioning part 61, the locking member 6 swings inward and blocks the movable cover plate 15, preventing the movable cover plate 15 from reaching the position where the insertion groove 152 and the mating groove 41 can be aligned.

[0038] The above embodiments can be modified and varied in many ways. Therefore, the above description should not be considered as a complete limitation, but only as a preferred example. Those skilled in the art can implement other construction schemes without departing from the scope and spirit of this application. In addition, those skilled in the art can also make other modifications within the scope and spirit of the appended features and advantages.

Claims

1. An interlocked electric operating mechanism, comprising a housing, a motor and a drive block driven by the motor disposed within the housing, characterized in that: The motor drives the main shaft to rotate, which in turn causes the drive block to move left and right. The left and right movement of the drive block causes the operating handle to move left and right to achieve the opening and closing of the circuit breaker. A locking component is provided on the outside of the drive block. The locking component is equipped with a swing guide mechanism and an elastic reset mechanism. The side of the locking component away from the drive block has a positioning part. The locking component has a blocking part for blocking the drive block. The swing guide mechanism guides the locking component to swing back and forth in the horizontal direction. The elastic reset mechanism pushes the locking component to swing outward. A corresponding interlocking swing component mounted on the housing frame is provided on the outside of the locking component. The interlocking swing component is driven by rotation. The interlocking swing component has a positioning rod. During the swing of the interlocking swing component, the positioning rod pushes inward and locks into the positioning part. During the pushing process, the locking component swings inward and causes the blocking part to lock in the left and right movement direction of the drive block, thereby achieving operation locking by preventing the drive block from moving. The swing guide mechanism includes an upper clamping plate and a lower clamping plate on the locking member facing the driving block. The inner frame of the housing has a guide support plate inserted between the upper clamping plate and the lower clamping plate. The elastic reset mechanism includes a spring, with both ends of the spring respectively sleeved on the inner sleeve rod of the guide support plate and the outer sleeve rod inside the locking member. One end of the locking member is pivotally connected to the inner frame of the housing, and the pivotally connected end of the locking member is separated from the positioning rod on the left and right. The front side of the locking member has a locking block, and the inner frame has a blocking part that blocks the locking block, preventing the locking member from swinging outward.

2. The interlocked electric operating mechanism according to claim 1, characterized in that: The main shaft has a mating groove into which an operating handle can be inserted. The operating handle can be manually rotated when inserted into the mating groove. The upper end of the interlocking swing member has a knob that protrudes upwards from the cover.

3. The interlocked electric operating mechanism according to claim 1 or 2, characterized in that: The transmission mechanism is housed within the transmission mechanism cover plate, the transmission mechanism base plate, and the surrounding plate. The guide support plate is the transmission mechanism cover plate. The transmission mechanism cover plate has a clearance groove on the side facing the locking member. The inner sleeve rod protrudes outward from the middle of the clearance groove. The transmission mechanism cover plate is inserted between the upper clamping plate and the lower clamping plate. The locking member has an outer sleeve rod located between the upper clamping plate and the lower clamping plate on its inner side. The two ends of the spring are respectively sleeved on the inner sleeve rod and the outer sleeve rod.

4. The interlocked electric operating mechanism according to claim 1 or 2, characterized in that: The interlocking swing member is also provided with a blocking plate. During the rotation of the interlocking swing member, the positioning rod is simultaneously engaged in the positioning part and the blocking plate enters below the test button. When the blocking plate is below the test button, it prevents the test button from being pressed down.

5. The interlocked electric operating mechanism according to claim 4, characterized in that: The blocking plates are arranged in an arc shape, located below the positioning rod and vertically offset. The blocking plates are positioned in front of the positioning rod in the direction of the locking interlocking swing member.

6. The interlocked electric operating mechanism according to claim 1 or 2, characterized in that: The main shaft is equipped with a toggle element, and the end of the toggle element is equipped with a toggle post. The toggle post is located in the toggle groove of the drive block. The rotation of the main shaft causes the toggle element and the toggle post to swing. During the swinging process, the toggle post causes the drive block to move back and forth.

7. The interlocked electric operating mechanism according to claim 1 or 2, characterized in that: The drive block guiding mechanism includes at least two guide rods, with each side of the drive block respectively fitted onto at least one guide rod.

8. The interlocked electric operating mechanism according to claim 1, characterized in that: The main shaft has a mating groove into which an operating handle can be inserted. The operating handle can be manually rotated by inserting it into the mating groove. A movable cover plate is covered above the mating groove. The movable cover plate has a toggle switch that passes through a track groove on the cover. During the movement of the movable cover plate, a micro switch is triggered to indicate the open or closed state of the manual socket.

9. The interlocked electric operating mechanism according to claim 8, characterized in that: The locking member is located on the translation path of the movable cover plate. The movable cover plate has an insertion slot corresponding to the mating slot of the operating handle. After the movable cover plate moves forward to the bottom, the insertion slot and the mating slot are aligned. When the positioning rod swings and pushes inward to lock into the positioning part, the locking member swings inward and blocks the movable cover plate, preventing the movable cover plate from reaching the position where the insertion slot and the mating slot can be aligned.

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