Manual operation mechanism and circuit breaker

Abstract

The manual operation mechanism comprises a shell, a handle assembly is rotationally assembled on the shell, a transmission assembly and a sliding assembly are assembled in the shell, the handle assembly comprises a handle body, and the handle body and the shell are matched to rotate around a shaft so as to switch a closing position, a tripping position and an opening position. A transmission structure connected to the handle body drives the sliding assembly to move along a straight line through the transmission assembly, the transmission assembly comprises a gear set and a rack set which are connected in a meshed mode, the gear set is driven by the transmission structure to rotate, the rack set is fixed to the sliding assembly, the gear set comprises at least two gears arranged in a stacked mode, and the gear set is connected with the transmission assembly. The rack set comprises at least two racks which are arranged in a stacked mode. According to the utility model, the gear set and the rack set in the transmission assembly respectively adopt at least two gears and racks which are arranged in a stacked manner, so that the transmission driving force is uniformly transmitted, and the matching precision and the transmission stability are improved.

Description

Technical Field

[0001] This utility model relates to the field of low-voltage electrical appliances, specifically to a manual operating mechanism and a circuit breaker. Background Technology

[0002] A circuit breaker is a switching device that can close, carry, and interrupt current under normal circuit conditions and close, carry, and interrupt current under abnormal circuit conditions within a specified time. The manual operating mechanism, as an auxiliary device of the circuit breaker, is used to manually operate the operating components in the circuit breaker, thereby realizing the manual operation of the circuit breaker's opening and closing.

[0003] In existing products, the handle assembly in the manual operating mechanism typically rotates around an axis, switching between the closed, tripped, and open positions. A transmission component converts this rotation into linear movement of a sliding component, which in turn drives the operating element to close or open the circuit breaker. However, existing manual operating mechanisms have the following drawbacks: First, the transmission component typically uses meshing gears and racks, with a single gear and rack engaging, which is detrimental to transmission stability. Second, the handle assembly's swing amplitude is small when switching between the closed and open positions, resulting in a short linear travel of the sliding component, which is not conducive to accurately driving the circuit breaker's operating element to the closed or open position. Third, the lack of a limit structure when the handle assembly is in the closed or open position leads to poor fixation of the handle assembly. Summary of the Invention

[0004] The purpose of this utility model is to overcome at least one defect of the prior art and provide a manual operating mechanism and a circuit breaker.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This utility model provides a manual operating mechanism, including a housing. A handle assembly is rotatably mounted on the housing. A transmission assembly and a sliding assembly are assembled inside the housing. The handle assembly includes a handle body, which rotates around an axis in cooperation with the housing to switch between a closed position, a tripped position, and a closed position. A transmission structure connected to the handle body drives the sliding assembly to move linearly via the transmission assembly. The transmission assembly includes a gear set and a rack set that are meshed together. The gear set is driven to rotate by the transmission structure, and the rack set is fixed to the sliding assembly. The gear set includes at least two stacked gears, and the rack set includes at least two stacked racks.

[0007] Furthermore, the sliding assembly includes a guide rod and a slider. The guide rod is disposed inside the housing, and the slider slides in cooperation with the guide rod. The rack assembly is fixed on the slider for driving the slider to move linearly along the guide rod. The slider is provided with an operating part.

[0008] Furthermore, the sliding assembly also includes at least one pair of support members, and the guide rod is fixed between the pair of support members.

[0009] Furthermore, the sliding assembly also includes a reset component, the two ends of which are connected to the slider and the housing respectively, for driving the slider to reset.

[0010] Furthermore, the slider is a hollow frame structure, and guide grooves are provided on the outer edges of the slider on both sides. The guide grooves slide in cooperation with the guide rods. Two parallel operating rods are provided in the hollow area of ​​the slider, and the axis of each operating rod is perpendicular to the axis of the guide rod. The two operating rods and the gap between the two operating rods form an operating part. The rack set is stacked and fixed on the slider. A connecting part is provided at the corner of the slider, and a reset member is connected between the connecting part and the housing.

[0011] Furthermore, the slider is provided with an insert groove, and each rack has an insert part protruding from the middle of one side. The insert part is fitted into the insert groove. The other side of each rack is provided with a straight gear part, and the gear part of the rack corresponds to the central area of ​​the slider.

[0012] Furthermore, the rotation angle of the handle assembly is an obtuse angle of less than 130°.

[0013] Furthermore, the angle at which the handle body rotates from the closed position to the tripped position is 60°, the angle at which the handle body rotates from the open position to the tripped position is 60°, and the tripped position is located between the open position and the closed position.

[0014] Furthermore, each gear has a fan-shaped gear portion on one side, which meshes with the straight gear portion in the rack. The gear has at least one slot in the middle, and the transmission structure has a protruding insertion portion that engages with the slot at one end facing the gear set.

[0015] Furthermore, the handle assembly also includes a locking structure, which locks the handle body in the closed or open position. The locking structure includes a fixed cover fixed to the housing, with an external marking on the fixed cover. The handle body corresponds to the marking for indication. A limiting plate is slidably provided inside the fixed cover, and a return spring is provided between the limiting plate and the fixed cover. A linkage hole is provided in the middle of the limiting plate, and the rotating shaft of the transmission structure passes through the linkage hole and is linked to the transmission assembly. The rotating shaft drives the limiting plate to slide inside the fixed cover. Two locking parts are also provided inside the fixed cover. The edge of the limiting plate restricts the locking parts from sliding towards the handle body. The sliding trajectory of the locking parts is parallel to the radial direction of the handle body. The handle body has a locking groove, which limits one of the locking parts, so that the handle assembly is locked on the fixed cover.

[0016] Furthermore, the handle body includes a handle portion, a linkage portion, and a rotating portion. The handle portion is located outside the housing, the rotating portion is assembled inside the fixed cover, the linkage portion is connected between the handle portion and the rotating portion, the linkage portion passes through the linkage hole and drives the limiting plate to slide, the outer side wall of the rotating portion is provided with a locking groove, the middle part of the rotating portion is provided with a driving hole, and one end of the transmission structure is installed in the driving hole.

[0017] Furthermore, the fixed cover includes a face mask and a bottom shell. The face mask is disposed on the shell and has a central hole. A first track groove and a second track groove are provided on one side of the central hole, and the first track groove and the second track groove are spaced apart. The first track groove is fan-shaped, and the linkage part rotates in the fan-shaped groove. One locking part corresponds to one end of the first track groove, and the other locking part corresponds to the second track groove.

[0018] Furthermore, the housing also has a button hole, in which a trip button is slidably mounted. A button spring is also sleeved on the outside of the trip button, and the button spring provides a reset force for the trip button.

[0019] This utility model also provides a circuit breaker, including a circuit breaker body, an operating member provided in the circuit breaker body, an operating mechanism provided inside the circuit breaker body, the operating member and the operating mechanism being linked to drive the opening and closing of the circuit breaker body, and also including a manual operating mechanism as described above, the operating member being located inside the housing and being driven to swing by the sliding component.

[0020] Preferably, the circuit breaker body is further provided with a trip button, which is used to trigger the tripping of the operating mechanism. The housing of the manual operating mechanism is slidably equipped with a trip button, which corresponds to the trip button. Pressing the trip button causes the trip button to move within the housing to press the trip button.

[0021] The manual operating mechanism and circuit breaker of this utility model employ at least two stacked gears and racks in the transmission assembly, which facilitates uniform transmission of driving force, improves matching accuracy and transmission stability.

[0022] In addition, by setting a separate guide rod, the slider can cooperate with the guide rod, which helps to ensure the movement trajectory of the sliding component and improve the stability of the cooperation between the sliding component and the operating parts in the circuit breaker.

[0023] In addition, the guide rod is equipped with a separate support frame, which makes the slider assembly a modular structure and facilitates assembly.

[0024] In addition, the rack and slider are installed through the mounting slot and mounting part to ensure the connection stability between the rack and slider.

[0025] In addition, by rotating the handle assembly at a larger angle, the linear travel of the sliding component is extended, which can ensure that the operating parts in the circuit breaker can be moved into place in products that require a large driving force.

[0026] In addition, the locking structure locks the handle body when it is in the closed or open position, limiting its rotation range and improving operational stability. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the circuit breaker of this utility model;

[0028] Figure 2 This is a schematic diagram of the manual operating mechanism and the operating mechanism in this utility model;

[0029] Figure 3 This is an exploded view of the manual operation mechanism in this utility model;

[0030] Figure 4 This is a structural schematic diagram of the manual operation mechanism in this utility model (with the housing removed);

[0031] Figure 5 This is an exploded view of the manual operating mechanism in this utility model (with the housing removed);

[0032] Figure 6 This is a schematic diagram of the sliding component in this utility model;

[0033] Figure 7 This is a schematic diagram of the slider structure in this utility model;

[0034] Figure 8 This is a schematic diagram of the gear structure in this utility model;

[0035] Figure 9 This is a schematic diagram of the rack structure in this utility model;

[0036] Figure 10 This is a schematic diagram of the locking structure in this utility model;

[0037] Figure 11 This is a schematic diagram showing the cooperation between the locking structure and the handle assembly in this utility model;

[0038] Figure 12 This is a schematic diagram of the internal structure of the locking structure in this utility model;

[0039] Figure 13 This is a schematic diagram of the structure of the face mask in this utility model;

[0040] Figure 14 This is a schematic diagram of the bottom shell structure of this utility model;

[0041] Figure label:

[0042] 1-Manual operating mechanism, 10-Housing, 11-Handle assembly, 111-Handle part, 112-Linkage part, 113-Rotating part, 114-Shaft, 115-Driven part, 12-Transmission assembly, 121-Gear set, 1210-Gear, 1211-Slot, 122-Rack and pinion assembly, 1220-Rack, 1221-Insertion part, 13-Sliding assembly, 131-Guide rod, 132-Slider, 1321-Guide groove, 1322-Connecting part, 1323 - Mounting slot, 133 - Reset component, 134 - Operating lever, 135 - Support component, 14 - Locking structure, 141 - Face mask, 1411 - Central hole, 1412 - First track groove, 1413 - Second track groove, 142 - Bottom shell, 143 - Limiting plate, 144 - Unlock button, 145 - Reset spring, 146 - Locking part, 15 - Trip button, 151 - Button spring, 2 - Circuit breaker body, 21 - Operating component, 22 - Operating mechanism, 23 - Trip button. Detailed Implementation

[0043] The following description, in conjunction with the accompanying drawings, further illustrates the specific implementation of the manual operating mechanism and circuit breaker of this utility model. The manual operating mechanism and circuit breaker of this utility model are not limited to the descriptions in the following embodiments.

[0044] like Figure 1 As shown, the circuit breaker includes a circuit breaker body 2. An operating element 21 is provided on one side of the circuit breaker body 2. An operating mechanism 22 is provided inside the circuit breaker body 2. The operating element 21 and the operating mechanism 22 are linked and connected to drive the opening and closing of the circuit breaker body 2. A trip button 23 is also provided on one side of the circuit breaker body 2. The trip button 23 and the operating element 21 are located on the same side of the circuit breaker body 2. The trip button 23 is located inside the circuit breaker body 2 and is opposite to the operating mechanism 22. Pressing the trip button 23 can trigger the operating mechanism 22 to trip. The circuit breaker body 2 can adopt existing technology.

[0045] The circuit breaker also includes a manual operating mechanism 1, which includes a housing 10. The housing 10 covers the side of the circuit breaker body 2 where the operating element 21 and the trip button 23 are located. A handle assembly 11 is rotatably mounted on the housing 10. Typically, the handle assembly 11 includes a handle body. A connecting hole is provided in the middle of the housing 10. The handle body is rotatably mounted in the connecting hole. One end of the handle body is located outside the housing 10, and the other end of the handle body is located inside the housing 10 through the connecting hole. The handle body and the housing 10 cooperate to rotate around an axis to switch the closing position, the tripping position, and the opening position. The handle body located inside the housing 10 is connected to a transmission structure. The transmission structure, the transmission component 12, and the sliding component 13 are sequentially linked. When the handle assembly 11 is rotated, the handle body drives the sliding component 13 to move in a straight line through the transmission component 12. The sliding component 13 drives the circuit breaker body 2 to open or close.

[0046] The improvement of this application is that the transmission assembly 12 includes a gear set 121 and a rack set 122 that are meshed together. The gear set 121 is driven to rotate by the transmission structure, and the rack set 122 is fixed on the sliding assembly 13. The gear set 121 includes at least two stacked gears 1210, and the rack set 122 includes at least two stacked racks 1220.

[0047] Thus, the gear set 121 and rack set 122 in the transmission assembly 12 respectively adopt at least two stacked gears 1210 and racks 1220, which is conducive to uniform transmission of driving force, improving the matching accuracy and transmission stability.

[0048] Preferably, the rotation angle range of the handle assembly 11 is an obtuse angle less than 130°. That is, in the manual operating mechanism 1, the central angle between the handle body in the closed position and the open position is an obtuse angle. For example, the rotation angle range of the handle body is 0 to 120°. Usually, the tripping position is located between the closed position and the open position. That is, the central angle between the closed position and the tripping position is 60°, and the central angle between the open position and the tripping position is 60°. By rotating a larger angle, the linear travel of the sliding assembly 13 is extended. In products that require a larger driving force, it can be ensured that the operating element 21 in the circuit breaker can be moved into place.

[0049] Specifically, the sliding assembly 13 includes a guide rod 131 and a slider 132. Preferably, the guide rods 131 are arranged in pairs to ensure the stability of the cooperation between the slider 132 and the guide rods 131. The guide rods 131 can slide and cooperate with the side of the slider 132, or the guide rods 131 can slide and cooperate through the slider 132. The rack assembly 122 is fixed on the slider 132. When the rack assembly 121 is driven to rotate, the gear assembly 121 and the rack assembly 122 mesh and connect, causing the sliding assembly 13 to be driven to move in a straight line. The operating part provided on the slider 132 is used to drive the operating member 21 of the circuit breaker body 2 to move. The operating part is preferably a groove structure into which the operating member 21 extends.

[0050] Furthermore, the sliding assembly 13 also includes at least one pair of support members 135, with each guide rod 131 fixed between the pair of support members 135. The support members 135 provide an assembly position for the guide rod 131, eliminating the need to fix the guide rod 131 to the circuit breaker body 2. This makes the manual operating mechanism 1 a modular structure, facilitating the integral assembly of the manual operating mechanism 1 onto the circuit breaker body 2. The sliding assembly 13 also includes a reset member 133, which is made of an elastic material, such as a spring. The two ends of the reset member 133 are connected to the slider 132 and the housing 10, respectively, to drive the slider 132 to reset, thereby causing the slider 132 to drive the handle assembly 11 to the correct position via the transmission assembly 12.

[0051] Preferably, the housing 10 also has a button hole, in which a trip button 15 is slidably mounted. The trip button 15 corresponds to the trip button 23 of the circuit breaker body 2. A button spring 151 is sleeved on the outside of the trip button 15, and the button spring 151 provides a reset force for the trip button 15. Pressing the trip button 15 can trigger the circuit breaker body 2 to trip.

[0052] Preferably, the handle assembly 11 further includes a locking structure 14, which locks the handle body in the closed or open position. The locking structure 14 includes a fixed cover fixed to the housing 10. The fixed cover has markings, such as a closed marking, a trip marking, and an open marking, to indicate the position of the handle body. A limit plate 143 is provided inside the fixed cover. A return spring 145 is provided between the limit plate 143 and the fixed cover. A linkage hole is provided in the middle of the limit plate 143. The handle body passes through the linkage hole and is linked to the transmission structure. The rotating handle body can drive the limit plate 143 to slide inside the fixed cover. A locking part 146 is provided inside the fixed cover. The edge of the limit plate 143 restricts the locking part 146 from sliding towards the handle body. The sliding trajectory of the locking part 146 is parallel to the radial direction of the handle body. A locking groove is provided on the side wall of the handle body. The locking groove and the locking part 146 limit each other, so that the handle assembly 11 is locked on the fixed cover.

[0053] Combination Figures 1-14 A specific embodiment of a manual operating mechanism 1 is provided.

[0054] like Figures 2-4 As shown, the manual operating mechanism 1 includes a housing 10, with a connecting hole in the middle of the housing 10. The connecting hole is preferably located at an eccentric position. A handle assembly 11 is rotatably mounted in the connecting hole. The handle assembly 11 is located at an eccentric position to facilitate its application on the circuit breaker body 2 (e.g., a circuit breaker body 2 with a 1600 frame) that requires a large operating force. A transmission assembly 12 and a sliding assembly 13 are mounted inside the housing 10. The transmission assembly 12 is linked between the handle assembly 11 and the sliding assembly 13. The transmission assembly 12 converts the driving force generated by the rotation of the handle assembly 11 around the axis into a driving force for driving the sliding assembly 13 to move linearly. The sliding assembly 13 drives the operating member 21 of the circuit breaker body 2 to perform opening and closing actions.

[0055] According to the relationship P(power) = F(force)·S(stroke), under the premise of the same work done, increasing the stroke can effectively reduce the force value. In this embodiment, the rotation angle of the handle assembly 11 is an obtuse angle less than 130°. In particular, when the manual operating mechanism 1 is applied to the circuit breaker body 2 with a 1600 frame product, its operating force is relatively large. The rotation angle of the handle assembly 11 is preferably set to 120°. That is, in this embodiment, the rotation angle range of the handle assembly 11 is 0 to 120°. Compared with the existing manual operating mechanism 1, the rotation angle of the handle assembly 11 is larger, which can extend the linear movement stroke of the sliding component 13, thereby ensuring that the operating component 21 in the circuit breaker can be accurately moved into place. In this embodiment, the tripping position is located between the closing position and the opening position. The rotation angle of the handle body from the closing position to the tripping position is 60°, and the rotation angle of the handle body from the opening position to the tripping position is 60°. The tripping position is located between the opening position and the closing position.

[0056] Specifically, such as Figures 2-5As shown in Figures 10-14, the handle assembly 11 includes a handle body and a transmission structure. The handle body rotates through the connecting hole and can rotate around an axis. The handle body includes a handle portion 111, a linkage portion 112, and a rotating portion 113. The handle portion 111 is located outside the housing 10 and is used to manually drive the handle assembly 11 to open and close the brake. The rotating portion 113 is located inside the housing 10, and a drive hole is provided in the middle of the rotating portion 113. The linkage portion 112 connects the handle portion 111 and the rotating portion 113, so that the handle portion 111 and the rotating portion 113 are connected. 113 forms a whole; the transmission structure includes a rotating shaft 114 and a driven part 115. A square shaft is provided in the middle of the rotating shaft 114. One end of the square shaft is connected to the drive hole, and the other end of the square shaft is connected to the driven part 115. The rotating shaft 114, the square shaft, and the driven part 115 are coaxial. Preferably, a protruding insertion part is provided on the end face of the driven part 115 away from the rotating shaft 114, so that the handle body and the transmission structure rotate together around the axis. In this embodiment, the rotation axis of the handle assembly 11 is the central axis of the square shaft. Of course, as other embodiments, the rotating shaft 114, the driven part 115, and the square shaft in the transmission structure are an integral structure, or the handle body and the transmission structure are an integral structure. In this case, the insertion part is provided at the end of the transmission structure facing the gear set 121.

[0057] Furthermore, such as Figures 10-14As shown, the handle assembly 11 also includes a locking structure 14, which includes a fixed cover. In this embodiment, the fixed cover is a hollow cylindrical structure. The fixed cover is fixed to the connecting hole, and the outside of the fixed cover is marked. In the figure, the markings are for closing, tripping, and opening. The handle body and the markings are used to indicate the state of the manual operation mechanism 1. In this embodiment, the handle part 111 is used as an indicator to cooperate with the markings for indication. A limiting plate 143 is slidably provided inside the fixed cover. A return spring 145 is provided between the limiting plate 143 and the fixed cover. A linkage hole is provided in the middle of the limiting plate 143. In the figure, the linkage hole is irregularly shaped. The protruding structure at the edge of the linkage hole is used to cooperate with the transmission structure in the handle assembly 11. That is, the edge of the linkage hole contacts the square shaft. When the square shaft rotates, it can drive the linkage plate in the fixed cover. Sliding within the housing; two locking parts 146 are provided inside the fixed housing, and the locking parts 146 are restricted from sliding towards the handle body by the edge of the limiting plate 143. In this embodiment, the limiting plate 143 is approximately a rectangular plate. One of the shorter right-angled sides of the limiting plate 143 cooperates with one of the locking parts 146, and one of the longer sides of the limiting plate 143 is recessed near the corner to cooperate with the two locking parts 146. The sliding trajectory of each locking part 146 is parallel to the radial direction of the handle body. Preferably, the fixed housing is also provided with a groove to restrict the movement of the locking parts 146, and a locking groove is provided on the handle body. In this embodiment, the locking groove is located on the circumferential side wall of the rotating part 113. When one of the locking parts 146 moves to the locking groove, the handle assembly 11 is locked on the fixed housing, thereby completing the locking of the handle assembly 11. In addition, an unlocking button 144 is connected to the limiting plate 143. The unlocking button 144 extends out of the cover and cooperates with the reset spring 145. By pressing the unlocking button 144, the limiting plate 143 can be driven to move inside the cover, thereby releasing the edge of the limiting plate 143 from the locking part 146.

[0058] like Figures 10-14The fixed cover in this embodiment includes a face mask 141 and a bottom shell 142 that overlap each other. The face mask 141 is disposed on the housing 10, and an indicator for indicating the position of the handle assembly 11 is also disposed on the face mask 141. The bottom shell 142 is located inside the housing 10 and provides an assembly position for the locking structure 14. The rotating part 113 of the handle assembly 11 is located inside the fixed cover and is located above the limiting plate 143. A central hole 1411 is provided in the middle of the face mask 141. A first track groove 1412 and a second track groove 1413 are provided on one side of the handle assembly 11. The first track groove 1412 and the second track groove 1413 are spaced apart. The first track groove 1412 is fan-shaped. The linkage part 112 of the handle assembly 11 passes through the first track groove 1412. During the rotation of the handle body, the linkage part 112 rotates in the track groove. One locking part 146 corresponds to one end of the first track groove 1412, and the other locking part 146 corresponds to the second track groove 1413. As another embodiment, the handle assembly 11 may not have a locking structure 14, and the rotating part 113 may simply be assembled into the fixed cover.

[0059] The transmission assembly 12 includes a gear set 121 and a rack set 122 that are meshed together. The gear set 121 is driven to rotate by the transmission structure. Preferably, one side of the gear set 121 has a sector-shaped gear portion, and the middle of the gear set 121 has a slot 1211. The slot 1211 is engaged with the insertion portion in the transmission structure (driven portion 115), thereby driving the gear set 121 to rotate with the handle assembly 11. The rack set 122 is fixed on the slider 132 in the sliding assembly 13. One side of the rack set 122 has a straight gear portion. Through the mutual engagement of the sector-shaped gear portion and the straight gear portion, the slider 132 assembly is driven to move in a straight line.

[0060] In this embodiment, the gear set 121 includes at least two stacked gears 1210, each gear 1210 having the same structure. Figure 8 In the process, gear 1210 is an incomplete gear 1210, and each gear 1210 has a sector-shaped gear section on one side. The central angle of the sector-shaped gear section is preferably greater than or equal to 120° to ensure that the rotation angle of the handle assembly 11 between the closed and open positions is 120°. The rack assembly 122 includes at least two stacked racks 1220, and each rack 1220 has the same structure. Figure 9In the design, a straight gear section is provided on one side of the rack 1220, and an insert section 1221 protrudes from the middle of the other side of the rack 1220. In the figure, the insert section 1221 is similar to a rectangular boss. The insert section 1221 can be used to fix and connect with the sliding component 13, which is beneficial to fix the rack assembly 122 on the sliding component 13. Preferably, the meshing gear 1210 and the rack 1220 have the same thickness. By stacking two or more gears 1210 (rack 1220) to form a gear assembly 121 (rack assembly 122), it is beneficial to uniformly transmit driving force, improve the matching accuracy and transmission stability. By stacking two or more gears 1210 (rack 1220), the manufacturing difficulty of each gear 1210 (rack 1220) is reduced. The thinner material can effectively ensure the accuracy of the gear section and the flatness of the cut surface, reduce meshing noise, and improve meshing life. It should be noted that the connection between the gear set 121 and the transmission structure, and the fixed connection between the rack set 122 and the sliding component 13, can also be secured with fasteners such as screws, thereby improving assembly stability.

[0061] In this embodiment, the sliding assembly 13 includes a slider 132 and two pairs of spaced-apart support members 135. A guide rod 131 is provided between each pair of support members 135. The slider 132 is located between the two pairs of support members 135, and the two side edges of the slider 132 slide in engagement with the guide rod 131. The gear set 121 is fixed on the slider 132. When the manual operating mechanism 1 is provided on the circuit breaker body 2, the guide rod 131 does not need to be provided on the circuit breaker body 2, which facilitates assembly. Preferably, the slider 132 is provided with an insert groove 1323 that mates with the insert part 1221, which improves the connection between the slider 132 and the rack set 122. The stability of the fit; in this embodiment, each support member 135 is a plate structure, and the support member 135 is arranged along the central axis parallel to the handle body. The guide rod 131 can adopt a rod-shaped structure such as a pin. The two sides of the slider 132 are provided with guide grooves 1321. Each guide groove 1321 is slidably engaged with the guide rod 131, so that the slider 132 moves linearly along the guide rod 131. A trigger part is provided in the middle of the slider 132. The trigger part is usually a groove into which the operating member 21 extends. In addition, a reset member 133 is connected between the slider 132 and the housing 10. The reset member 133 is a spring.

[0062] like Figures 2-7As shown, the slider 132 is approximately a hollow rectangular frame structure. Guide grooves 1321 are provided on the outer edges of opposite sides of the slider 132. The guide grooves 1321 slide in conjunction with the guide rod 131. Two parallel operating rods 134 are provided in the hollow area of ​​the slider 132. The operating rods 134 can be pins, and the axis of each operating rod 134 is perpendicular to the axis of the guide rod 131. The two operating rods 134 and the gap between them form the operating part. A rack assembly 122 is stacked and fixed on the slider 132. Connecting parts 1322 are provided at the corners of the slider 132. A reset member 133 is connected to the housing 10. The slider 132 is provided with an insert groove 1323. Preferably, a thick boss is provided on one side of the slider 132, and the boss has an insert groove 1323. An insert part 1221 protrudes from the middle of one side of each rack 1220. All insert parts 1221 are correspondingly assembled in the insert groove 1323, so that each gear part in the rack group 122 corresponds to the central area of ​​the slider 132. In this embodiment, in the moving direction of the slider 132, the length of the slider 132 is less than the length of the rack 1220, which helps to ensure that the slider 132 has sufficient moving stroke.

[0063] In this embodiment, the housing 10 is also provided with a button hole. The button hole and the connecting hole are located on the same side wall of the housing 10. A trip button 15 is slidably installed in the button hole. The end of the trip button 15 near the circuit breaker body 2 corresponds to the trip button 15 of the circuit breaker body 2. A button spring 151 is sleeved on the outside of the trip button 15 for resetting the trip button 15.

[0064] The circuit breaker includes a circuit breaker body 2, which is equipped with an operating component 21. Inside the circuit breaker body 2, there is an operating mechanism 22, a contact mechanism, and an arc extinguishing system. The operating component 21 is linked to the operating mechanism 22, causing the operating mechanism 22 to drive the contact mechanism to perform opening and closing actions. The operating mechanism 22 typically includes a latch assembly and a pull rod. The latch assembly includes a trip latch, a locking latch, and a re-latch. The trip latch and the locking latch engage, and the locking latch and the re-latch are in a limiting engagement. The pull rod is rotatably mounted on one side of the locking latch. When the pull rod is driven to rotate, it triggers the locking latch to rotate, causing the latch assembly to release the latch engagement, thereby realizing the tripping of the operating mechanism 22. The circuit breaker body 2 is typically equipped with a trip button 23. One end of the trip button 23 is located inside the circuit breaker body 2 and is used to trigger the rotation of the pull rod to achieve manual tripping.

[0065] When the circuit breaker body 2 is equipped with the manual operation mechanism 1 in the above embodiment, the operating member 21 is located inside the housing 10, and the operating mechanism 22 is driven by the trigger part of the slider 132 to swing open and close. That is, the operating member 21 is located in the gap between the two operating rods 134, and the trip button 15 and the trip button 23 are corresponding to each other inside the housing 10.

[0066] It should be noted that in the description of this utility model, the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used during use. They are only for ease of description and do not indicate that the device or component referred to must have a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating relative importance.

[0067] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the protection scope of the present invention.

Claims

1. A manually operated mechanism, comprising a housing (10) rotatably equipped with a handle assembly (11), the housing (10) equipped with a transmission assembly (12) and a sliding assembly (13) inside, the handle assembly (11) comprising a handle body, the handle body cooperating with the housing (10) to rotate around an axis to switch between a closed position, an open position and an off position, a transmission structure connected to the handle body driving the sliding assembly (13) to move linearly through the transmission assembly (12), characterized in that: The transmission assembly (12) comprises a gear set (121) and a rack set (122) connected in meshing, the gear set (121) is driven to rotate by a transmission structure, the rack set (122) is fixed on the sliding assembly (13), the gear set (121) comprises at least two stacked gears (1210), and the rack set (122) comprises at least two stacked racks (1220). ​ 2. The manually operated mechanism of claim 1, wherein: The sliding assembly (13) comprises a guide rod (131) and a sliding block (132), the guide rod (131) is arranged in the shell, the sliding block (132) is in sliding fit with the guide rod (131), and the rack set (122) is fixed on the sliding block (132) and used for driving the sliding block (132) to move linearly along the guide rod (131); and the sliding block (132) is provided with an operation part.

3. A manually operated mechanism according to claim 2, characterised in that: The sliding assembly (13) further comprises at least one pair of supporting members (135), and the guide rod (131) is fixed between the pair of supporting members (135).

4. The manually operated mechanism of claim 2, wherein: The sliding assembly (13) further comprises a reset member (133), and two ends of the reset member (133) are connected with the sliding block (132) and the shell (10) respectively and used for driving the sliding block (132) to reset.

5. A manually operated mechanism according to any one of claims 2 to 4, characterised in that: The sliding block (132) is a hollow frame structure, outer edges of opposite sides of the sliding block (132) are provided with guide grooves (1321) in sliding fit with the guide rod (131), the hollow region of the sliding block (132) is provided with two parallel operation rods (134), the axis of each operation rod (134) is perpendicular to the axis of the guide rod (131), the operation part is formed by the two operation rods (134) and the gap between the two operation rods (134), the rack set (122) is fixed on the sliding block (132) in stacking, and the sliding block (132) is provided with a connecting part (1322) at a corner, and the reset member (133) is connected between the connecting part (1322) and the shell (10).

6. A manually operated mechanism according to claim 5, characterised in that: The sliding block (132) is provided with an embedding groove (1323), one side of each rack (1220) is provided with an embedding part (1221) protruding in the middle, the embedding part (1221) is correspondingly assembled in the embedding groove (1323), and the other side of each rack (1220) is provided with a linear gear part, and the gear part of the rack (1220) corresponds to the central region of the sliding block (132).

7. The manually operated mechanism of claim 1, wherein: The handle assembly (11) has an obtuse angle of less than 130°.

8. A manually operated mechanism according to claim 1 or 7, characterised in that: The handle body has an angle of 60° from the closing position to the tripping position, and an angle of 60° from the opening position to the tripping position, and the tripping position is between the closing position and the opening position.

9. The manually operated mechanism of claim 1, wherein: One side of each gear (1210) is provided with a sector-shaped gear part in meshing connection with the linear gear part of the rack (1220), the middle part of the gear (1210) is provided with at least one insertion groove (1211), and one end of the transmission structure protruding towards the gear set (121) is provided with an insertion part in insertion fit with the insertion groove (1211).

10. The manually operated mechanism of claim 1, wherein: The handle assembly (11) further comprises a locking structure (14) for locking the handle body in the closed position or the open position, the locking structure (14) comprises a fixed cover fixed to the shell (10), the outer side of the fixed cover is provided with an identification, the handle body and the identification are used for indication, the inner side of the fixed cover is slidably provided with a limiting plate (143), the limiting plate (143) and the fixed cover are provided with a reset spring (145), the middle part of the limiting plate (143) is provided with a linkage hole, the rotating shaft (114) of the transmission structure passes through the linkage hole and is linked with the transmission assembly (12), the rotating rotating shaft (114) drives the limiting plate (143) to slide in the fixed cover, the fixed cover is further provided with two locking portions (146), the edge of the limiting plate (143) limits the sliding direction of the locking portion (146) to the handle body, the sliding track of the locking portion (146) is parallel to the radial direction of the handle body, the handle body is provided with a locking groove, the locking groove is limited with one of the locking portions (146), so that the handle assembly (11) is locked on the fixed cover.

11. A manually operated mechanism according to claim 10, characterised in that: The handle body comprises a handle portion (111), a linkage portion (112) and a rotating portion (113), the handle portion (111) is located outside the shell (10), the rotating portion (113) is assembled in the fixed cover, the linkage portion (112) is connected between the handle portion (111) and the rotating portion (113), the linkage portion (112) passes through the linkage hole and drives the limiting plate (143) to slide, the outer side wall of the rotating portion (113) is provided with a locking groove, the middle part of the rotating portion (113) is provided with a driving hole, one end of the transmission structure is installed in the driving hole.

12. The manually operated mechanism of claim 11, wherein: The fixed cover comprises a face cover (141) and a bottom shell (142), the face cover (141) is arranged on the shell (10), the face cover (141) is provided with a central hole (1411), one side of the central hole (1411) is provided with a first track groove (1412) and a second track groove (1413), and the first track groove (1412) and the second track groove (1413) are arranged at intervals, the first track groove (1412) is a fan-shaped groove, the linkage portion (112) rotates in the fan-shaped groove, one of the locking portions (146) corresponds to one end of the first track groove (1412), and the other locking portion (146) corresponds to the second track groove (1413).

13. The manually operated mechanism of claim 1, wherein: The shell (10) is further provided with a button hole, a trip button (15) is slidably assembled in the button hole, and a button spring (151) is further sleeved outside the trip button (15), the trip button (15) is provided with a reset force by the button spring (151).

14. A circuit breaker comprising a circuit breaker body (2) provided with an operating member (21), the interior of the circuit breaker body (2) being provided with an operating mechanism (22), the operating member (21) being linked to the operating mechanism (22) for driving the opening and closing of the circuit breaker body (2), characterized in that: Further comprising the manual operating mechanism according to any one of claims 1-13, the operating member (21) is located in the shell (10), and the operating member (21) is driven to swing by the sliding assembly (13).

15. The circuit breaker of claim 14, wherein: The circuit breaker body (2) is further provided with a tripping button (23) for triggering the operation mechanism (22) to trip, and the shell (10) of the manual operation mechanism (1) is slidingly assembled with a tripping button (15) corresponding to the tripping button (23). Pressing the tripping button (15) makes the tripping button (15) move in the shell (10) to press the tripping button (23).

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