Vacuum circuit breaker operating mechanism
By setting a locking component and a mounting component on the operating mechanism of the vacuum circuit breaker, and using a scale to adjust the installation angle and position, the problems of low versatility and complex maintenance of existing protective devices are solved, achieving efficient and convenient protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU SHENZHIJIANG ELECTRICAL APPLIANCE CO LTD
- Filing Date
- 2025-07-22
- Publication Date
- 2026-06-19
Smart Images

Figure CN224384186U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vacuum circuit breaker technology, and in particular to the operating mechanism of a vacuum circuit breaker. Background Technology
[0002] Vacuum circuit breakers are critical control and protection devices in power systems, and the reliability and safety of their operating mechanisms directly affect the stable operation of the entire power system. During transportation, installation, and long-term use, the operating mechanism (especially at corners) is highly susceptible to deformation and damage due to collisions, vibrations, or accidental impacts, leading to serious consequences such as circuit breaker malfunction, decreased arc-extinguishing performance, or even equipment failure. Therefore, effective collision protection for vacuum circuit breaker operating mechanisms has become a pressing technical problem for the industry.
[0003] In existing technologies, the protective devices of vacuum circuit breaker operating mechanisms mostly adopt a fixed design, that is, the protective plate or anti-collision block is directly fixed to the circuit breaker body by welding, bolting or other methods. This type of solution has the following drawbacks:
[0004] First, the size and shape of fixed protective devices need to be customized according to specific circuit breaker models, making them incompatible with equipment of different specifications or models, resulting in low versatility of protective devices. Second, if the protective device is damaged by a collision, it needs to be completely disassembled and replaced, which is a complicated and time-consuming maintenance process that may cause equipment downtime losses and inconvenience to actual use.
[0005] Therefore, it is necessary to provide a new vacuum circuit breaker operating mechanism to solve the above-mentioned technical problems. Utility Model Content
[0006] To solve the above-mentioned technical problems, this utility model provides a vacuum circuit breaker operating mechanism.
[0007] The vacuum circuit breaker operating mechanism provided by this utility model includes: a vacuum circuit breaker body, wherein each corner of the vacuum circuit breaker body is provided with a locking component for adapting to protective components of different sizes and two insertion components, wherein multiple protective components are sleeved on the corner of the vacuum circuit breaker body, one end of each of the multiple protective components is inserted into the two insertion components, and the other end of each of the multiple protective components is locked with the top of the locking component, and the corner of the vacuum circuit breaker body is also provided with a scale for facilitating the installation of the locking component and the two insertion components.
[0008] Preferably, a plurality of rubber pads are fixed to the outer side of the vacuum circuit breaker body, and the surface of each of the plurality of rubber pads is equipped with a plurality of protrusions.
[0009] Preferably, the vacuum circuit breaker body has multiple through holes at the corner for mounting two mounting components, and the scale is located on one side of the multiple through holes.
[0010] Both mounting components include mounting plates, and the surfaces of both mounting plates are engraved with multiple through holes II, the diameters of which match those of multiple through holes I. The surfaces of the mounting plates are provided with fasteners for fixing the mounting plates. The adjacent sides of the two mounting plates are rotatably connected by a pivot. A mounting box is fixed to the top of the two mounting plates. The inner wall of the mounting box is recessed inward to form a limiting groove II. A retaining plate I is slidably disposed on the inner wall of the mounting box. Both ends of the retaining plate I slide on the inner wall of the limiting groove II. The retaining plate I and the mounting box are connected by a spring II, the two ends of which are fixedly connected to the bottom of the retaining plate I and the bottom wall of the mounting box, respectively. One end of the protective component is inserted into the retaining plate I.
[0011] Preferably, one end of the fastener passes through multiple through holes two and reaches into multiple through holes one in sequence;
[0012] The fastener includes multiple screws, one end of each screw passing through multiple through holes two and reaching into multiple through holes one, and the surfaces of the multiple screws are threadedly connected to the surfaces of the multiple through holes one and the multiple through holes two, respectively.
[0013] Preferably, the protective component includes a triangular pyramid-shaped anti-collision block, which is sleeved at the corner of the vacuum circuit breaker body. Two connecting plates are fixed to one end of the anti-collision block, and insert plates are fixed to the bottom of the two connecting plates. Insert blocks are fixed to the bottom of the two insert plates, and the two insert blocks are respectively engaged with the surfaces of the two locking plates.
[0014] Preferably, the other end of the anti-collision block is provided with a rotating plate via a rotating rod. The end of the rotating plate away from the rotating rod has a latching groove. Both sides of the rotating plate are fixed with second locking plates. The other end of the anti-collision block is engaged with the surface of the engaging assembly via the second locking plates.
[0015] Preferably, the engaging assembly includes a mounting base, which is fixed to the outside of the vacuum circuit breaker body. The top of the mounting base is recessed inward to form a mounting groove. A limiting groove is formed on the inner side wall of the mounting groove. A pressure block is slidably disposed on the inner wall of the mounting groove. Both ends of the pressure block are fixed with limiting blocks. The pressure block slides on the inner wall of the limiting groove through the limiting blocks. The pressure block and the mounting groove are connected by a spring. Both ends of the spring are fixedly connected to one side of the pressure block and the bottom wall of the mounting groove, respectively. Multiple locking slots are arrayed on the side of the vacuum circuit breaker body near the mounting groove. The multiple locking slots are all connected to the interior of the mounting groove, and the bottom of the locking plate engages with the bottom wall of the locking slot.
[0016] Compared with related technologies, the vacuum circuit breaker operating mechanism provided by this utility model has the following advantages:
[0017] This invention features a locking assembly and two insertion assemblies at the corner of the vacuum circuit breaker body. The protective assembly can be fixed using a composite connection method with one end inserted and the other locked, without relying on the body's structural dimensions. Furthermore, by providing a scale at the corner of the vacuum circuit breaker body, users can customize the installation angle of the two insertion assemblies within the scale range according to actual needs, thereby changing the installation angle of the protective assembly. One end of the protective assembly is inserted from the top of the pre-installed insertion assembly. By adjusting the installation position of the insertion assembly, the installation position of the protective assembly is adjusted, thus ensuring compatibility with protection modules of different thicknesses, lengths, or shapes. This avoids installation misalignment caused by visual deviations. Through the dual protection of scale positioning, insertion fixing, and locking, the risk of protection failure caused by installation deviations is significantly reduced. This solves the problem of low versatility in protective devices, while this device offers good performance, ease of installation and disassembly, and high applicability. Attached Figure Description
[0018] Figure 1 A schematic diagram of the overall structure of the vacuum circuit breaker operating mechanism provided by this utility model;
[0019] Figure 2 Schematic diagram of the operating mechanism of the vacuum circuit breaker provided by this utility model Figure 1 ;
[0020] Figure 3 This is a schematic diagram of the scale structure;
[0021] Figure 4 This is a schematic diagram of the protective component.
[0022] Figure 5 This is a cross-sectional structural diagram of the protective component;
[0023] Figure 6This is a schematic diagram of the locking assembly.
[0024] The following are the labeling elements in the diagram: 1. Vacuum circuit breaker body; 11. Rubber pad; 111. Protrusion; 12. Through hole one; 13. Scale; 2. Mounting base; 21. Mounting groove; 22. Spring one; 23. Limiting groove one; 24. Pressure block; 241. Limiting block; 25. Slot; 3. Mounting plate; 31. Through hole two; 32. Screw; 33. Rotating shaft; 34. Mounting box; 341. Limiting groove two; 342. Slot one; 343. Spring two; 4. Anti-collision block; 41. Connecting plate; 42. Insert plate; 421. Inserting block; 43. Rotating plate; 431. Snap groove; 432. Slot two. Detailed Implementation
[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0026] Please refer to the following: Figures 1 to 6 ,in, Figure 1 A schematic diagram of the overall structure of the vacuum circuit breaker operating mechanism provided by this utility model; Figure 2 Schematic diagram of the operating mechanism of the vacuum circuit breaker provided by this utility model Figure 1 ; Figure 3 This is a schematic diagram of the scale structure; Figure 4 This is a schematic diagram of the protective component. Figure 5 This is a cross-sectional structural diagram of the protective component; Figure 6 This is a schematic diagram of the locking assembly.
[0027] In some embodiments, such as Figures 1 to 6 As shown, the device includes a vacuum circuit breaker body 1. Each corner of the vacuum circuit breaker body 1 is provided with a locking component for adapting to protective components of different sizes and two insertion components. Multiple protective components are sleeved on the corners of the vacuum circuit breaker body 1. One end of each protective component is inserted into the two insertion components, and the other end of each protective component is locked with the top of the locking component. The corners of the vacuum circuit breaker body 1 are also provided with a scale 13 to facilitate the installation of the locking component and the two insertion components.
[0028] Specifically, by setting a locking component and two insertion components at the corner of the vacuum circuit breaker body 1, the protective component can adopt a composite connection method of insertion at one end and locking at the other end, which can be fixed without relying on the structural dimensions of the vacuum circuit breaker body 1. Furthermore, by setting a scale 13 at the corner of the vacuum circuit breaker body 1, users can customize the installation angle of the two insertion components within the range of scale 13 according to actual needs, thereby changing the installation angle of the protective component. One end of the protective component is inserted from the top of the pre-installed insertion component. By adjusting the installation position of the insertion component, the installation position of the protective component can be adjusted, thus being compatible with protection modules of different thicknesses, lengths, or shapes, such as anti-collision blocks, buffer pads, or dust covers, avoiding installation misalignment caused by visual deviation. With the dual protection of positioning by scale 13, insertion fixation, and locking, the risk of protection failure caused by installation deviation is significantly reduced. The installable and detachable protective components can be maintained and replaced individually without disassembling the entire circuit breaker, reducing the complexity and cost of maintenance. This makes the device effective, easy to install and disassemble, and highly applicable.
[0029] In some embodiments, reference is made to Figures 1 to 2 As shown, multiple rubber pads 11 are fixed on the outer side of the vacuum circuit breaker body 1. The surface of each rubber pad 11 is equipped with multiple protrusions 111. The protrusions 111 are elastic, preferably made of rubber, which can reduce noise generation during collisions and has a certain ability to deform and recover deformation, thereby generating a certain buffering effect.
[0030] Specifically, during use, the multiple rubber pads 11 are made of rubber, which has a certain degree of flexibility and elasticity, and can protect the vacuum circuit breaker body 1 when it is hit.
[0031] In some embodiments, reference is made to Figure 1 , Figure 2 , Figure 4 , Figure 5 as well as Figure 6 As shown, the vacuum circuit breaker body 1 has multiple through holes 12 at the corner for mounting two mounting components, and the scale 13 is located on one side of the multiple through holes 12.
[0032] Both mounting components include a mounting plate 3. The surfaces of both mounting plates 3 are engraved with multiple through holes 31, the diameters of which match the diameters of multiple through holes 12. The surfaces of the mounting plates 3 are provided with fasteners for fixing the mounting plates 3. One end of each fastener passes through the multiple through holes 31 and reaches into the multiple through holes 12. Each fastener includes multiple screws 32, one end of which passes through the multiple through holes 31 and reaches into the multiple through holes 12. The surfaces of the screws 32 are respectively screwed into the surfaces of the multiple through holes 12 and the multiple through holes 31. The two mounting plates 3 are connected by a pivot 33. The top of the two mounting plates 3 is fixed with a mounting box 34. The inner wall of the mounting box 34 is recessed to form a limiting groove 341. A locking plate 342 is slidably provided on the inner wall of the mounting box 34. The two ends of the locking plate 342 slide on the inner wall of the limiting groove 341. The locking plate 342 and the mounting box 34 are connected by a spring 343. The two ends of the spring 343 are fixedly connected to the bottom of the locking plate 342 and the bottom wall of the mounting box 34, respectively. One end of the protective component is inserted into the locking plate 342.
[0033] Specifically, in use, firstly, multiple screws 32 are used to screw and fix the two mounting plates 3 to the corner of the vacuum circuit breaker body 1. The number of screws 32 can be used according to actual needs. Then, according to the requirements of the protective component, the mounting plate 3 is placed at the corner of the vacuum circuit breaker body 1. By observing the scale 13, the through hole 2 31 on the surface of the mounting plate 3 is aligned with the through hole 1 12. Then, one end of the screw 32 is turned and passed through the through hole 2 31 and the through hole 1 12 in sequence. The mounting plate 3 is then firmly fixed to the vacuum circuit breaker body 1 by the threaded connection. Since the two mounting plates 3 are connected by the rotating shaft 33, the relative position of the two mounting plates 3 can be flexibly adjusted according to the actual space and angle requirements during the installation process. When the protective component needs to be installed, one end of the protective component is aligned with the clamping plate 1 342 and a certain pressure is applied. Under the action of pressure, the clamping plate 1 342 overcomes the elastic force of the spring 2 343 and moves downward in the limiting groove 2 341, so that the protective component can be inserted smoothly.
[0034] Furthermore, the design of scale 13 provides a positioning reference for the installation of the mounting components. Operators can accurately install the mounting plate 3 according to the indication of scale 13, which helps the protective components to be accurately installed at the corner of the vacuum circuit breaker body 1, thereby achieving effective protection of the operating mechanism, reducing blind spots caused by installation deviations, and improving the reliability of the protective device.
[0035] Furthermore, the first clamping plate 342 and the mounting box 34 are elastically connected by the second spring 343, which can adapt to protective components of different sizes and shapes. When installing the protective components, the elastic deformation of the second spring 343 can provide a certain amount of buffering and adjustment space, so that the first clamping plate 342 can better clamp the protective components. At the same time, it can also facilitate the installation and disassembly of protective components of different specifications, further enhancing the versatility and compatibility of the protective components.
[0036] In some embodiments, reference is made to Figure 1 , Figure 2 , Figure 4 , Figure 5 as well as Figure 6 As shown, the protective component includes a triangular pyramid-shaped anti-collision block 4, which is an embodiment of the protective module. The anti-collision block 4 is preferably made of rubber. The anti-collision block 4 is sleeved on the corner of the vacuum circuit breaker body 1. Two connecting plates 41 are fixed to one end of the anti-collision block 4. Insert plates 42 are fixed to the bottom of the two connecting plates 41. Insert blocks 421 are fixed to the bottom of the two insert plates 42. The two insert blocks 421 are respectively engaged with the surfaces of the two clamping plates 342.
[0037] The other end of the anti-collision block 4 is provided with a rotating plate 43 via a rotating rod. The end of the rotating plate 43 away from the rotating rod is provided with a buckle groove 431. Both sides of the rotating plate 43 are fixed with a second clamping plate 432. The other end of the anti-collision block 4 is engaged with the surface of the engaging assembly via the second clamping plate 432.
[0038] The engaging assembly includes a mounting base 2, which is fixed to the outside of the vacuum circuit breaker body 1. The top of the mounting base 2 is recessed inward to form a mounting groove 21. A limiting groove 23 is opened on the inner side wall of the mounting groove 21. A pressure block 24 is slidably arranged on the inner wall of the mounting groove 21. Both ends of the pressure block 24 are fixed with limiting blocks 241. The pressure block 24 slides on the inner wall of the limiting groove 23 through the limiting blocks 241. The pressure block 24 and the mounting groove 21 are connected by a spring 22. Both ends of the spring 22 are fixedly connected to one side of the pressure block 24 and the bottom wall of the mounting groove 21, respectively. Multiple slots 25 are arrayed on the side of the vacuum circuit breaker body 1 near the mounting groove 21. The multiple slots 25 are all connected to the inside of the mounting groove 21, and the bottom of the second locking plate 432 engages with the bottom wall of the slot 25.
[0039] Specifically, when installing the anti-collision block 4, place the anti-collision block 4 on the corner of the vacuum circuit breaker body 1, aligning the two insert blocks 421 with the two retaining plates 342 respectively. Since the retaining plates 342 and the mounting box 34 are connected by a spring 343, during insertion, the insert blocks 421 will press the retaining plates 342, causing them to move downwards within the limiting groove 341, thus clamping the insert blocks 421. At this time, manually rotate the rotating plate 43 by holding the retaining groove 431, and manually push the pressure block 24. The spring 22 is compressed, aligning the retaining plates 432 with the mounting box 34. Slot 21, press down on the rotating plate 43 so that the second clamping plate 432 is inserted into the slot 25. At this time, release the pressure block 24, the spring 22 restores its elastic deformation, and drives the pressure block 24 to move towards the second clamping plate 432 and squeeze the rotating plate 43. Since the pressure block 24 slides on the inner wall of the limiting slot 23 through the limiting block 241, the pressure block 24 will not deflect during the squeezing, thus ensuring the stability of the insertion process and realizing the connection between the other end of the anti-collision block 4 and the locking assembly, thereby completing the overall installation of the anti-collision block 4 at the corner of the vacuum circuit breaker body 1.
[0040] Furthermore, the anti-collision block 4 achieves a double stable connection through the engagement of the insert block 421 with the first card plate 342 and the engagement of the second card plate 432 with the card slot 25. This design can withstand greater external impact and vibration, and to a certain extent ensures that the anti-collision block 4 will not loosen or fall off in complex working environments, and always provides reliable protection for the vacuum circuit breaker operating mechanism.
[0041] Furthermore, it is common knowledge in the art that spring 22 and spring 343 are adapted to the protective components during use. In actual use, the elastic force can be determined according to the type of spring selected, which will not be described here.
[0042] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.
[0043] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A vacuum circuit breaker operating mechanism, comprising a vacuum circuit breaker body (1), characterized in that, The corner of the vacuum circuit breaker body (1) is provided with a locking component and two insertion components for adapting to protective components of different sizes. Multiple protective components are sleeved on the corner of the vacuum circuit breaker body (1). One end of multiple protective components is inserted into the two insertion components. The other end of multiple protective components is locked with the top of the locking component. The corner of the vacuum circuit breaker body (1) is also provided with a scale (13) for easy installation of the locking component and the two insertion components.
2. The vacuum circuit breaker operating mechanism according to claim 1, characterized in that, Multiple rubber pads (11) are fixed on the outside of the vacuum circuit breaker body (1), and the surface of each of the multiple rubber pads (11) is equipped with multiple protrusions (111).
3. The vacuum circuit breaker operating mechanism according to claim 2, characterized in that, The vacuum circuit breaker body (1) has multiple through holes (12) at the corner for mounting two mounting components, and the scale (13) is located on one side of the multiple through holes (12). Both mounting components include mounting plates (3), and the surfaces of both mounting plates (3) are engraved with a plurality of through holes II (31). The diameters of the plurality of through holes II (31) match those of the plurality of through holes I (12). The surfaces of the mounting plates (3) are provided with fasteners for fixing the mounting plates (3). The adjacent sides of the two mounting plates (3) are rotatably connected by a pivot (33). The tops of the two mounting plates (3) are fixed with mounting boxes (34), and the inner walls of the mounting boxes (34) are recessed inward to form a... The second limiting groove (341) has a first retaining plate (342) slidably disposed on the inner wall of the mounting box (34). The two ends of the first retaining plate (342) slide on the inner wall of the second limiting groove (341). The first retaining plate (342) and the mounting box (34) are connected by a second spring (343). The two ends of the second spring (343) are fixedly connected to the bottom of the first retaining plate (342) and the bottom wall of the mounting box (34), respectively. One end of the protective component is inserted into the first retaining plate (342).
4. The vacuum circuit breaker operating mechanism according to claim 3, characterized in that, One end of the fastener passes through multiple through holes two (31) and reaches into multiple through holes one (12); The fastener includes a plurality of screws (32), one end of which passes through a plurality of through holes two (31) and reaches into a plurality of through holes one (12), and the surfaces of the plurality of screws (32) are threadedly connected to the surfaces of the plurality of through holes one (12) and the plurality of through holes two (31) respectively.
5. The vacuum circuit breaker operating mechanism according to claim 4, characterized in that, The protective component includes a triangular cone-shaped anti-collision block (4), which is sleeved on the corner of the vacuum circuit breaker body (1). Two connecting plates (41) are fixed at one end of the anti-collision block (4), and insert plates (42) are fixed at the bottom of the two connecting plates (41). Insert blocks (421) are fixed at the bottom of the two insert plates (42), and the two insert blocks (421) are respectively engaged with the surfaces of the two locking plates (342).
6. The vacuum circuit breaker operating mechanism according to claim 5, characterized in that, The other end of the anti-collision block (4) is provided with a rotating plate (43) through a rotating rod. The end of the rotating plate (43) away from the rotating rod is provided with a buckle groove (431). Both sides of the rotating plate (43) are fixed with a second card plate (432). The other end of the anti-collision block (4) is engaged with the surface of the engaging assembly through the second card plate (432).
7. The vacuum circuit breaker operating mechanism according to claim 6, characterized in that, The engaging assembly includes a mounting base (2), which is fixed to the outside of the vacuum circuit breaker body (1). The top of the mounting base (2) is recessed inward to form a mounting groove (21). A limiting groove (23) is formed on the inner wall of the mounting groove (21). A pressure block (24) is slidably disposed on the inner wall of the mounting groove (21). Both ends of the pressure block (24) are fixed with limiting blocks (241). The pressure block (24) slides on the inner wall of the limiting groove (23) through the limiting blocks (241). The pressure block (24) and the mounting groove (21) are connected by a spring (22) to extend and retract. The two ends of the spring (22) are respectively fixedly connected to one side of the pressure block (24) and the bottom wall of the mounting groove (21). The vacuum circuit breaker body (1) has multiple slots (25) arranged in an array on the side near the mounting groove (21). The multiple slots (25) are all connected to the interior of the mounting groove (21), and the bottom of the second card plate (432) is engaged with the bottom wall of the slot (25).