Operating mechanism and circuit breaker

Abstract

The utility model provides an operating mechanism and a circuit breaker, and belongs to the technical field of electrical equipment. The operating mechanism provided by the utility model comprises a side plate, a connecting piece and a main shaft, and mounting grooves are formed in the side plates. The connecting piece is of an integrated structure and is provided with a first mounting hole. The end of the main shaft penetrates through the first mounting hole, the side wall of the main shaft makes contact with the hole wall of the first mounting hole, and the main shaft can rotate relative to the first mounting hole. At least part of the connecting piece is located in the mounting groove, and the connecting piece is connected with the side plate. According to the main shaft mounting structure, the main shaft is fixed to the side plate through the connecting piece of the integrated structure, the mounting difficulty of the main shaft is reduced, and due to the fact that the integrated connecting piece is easy to manufacture, the mounting cost of the main shaft can be reduced.

Description

Technical Field

[0001] The present application relates to the technical field of electrical equipment, and in particular to an operating mechanism and a circuit breaker. Background Art

[0002] With the continuous development of the circuit breaker industry, circuit breakers are developing towards high efficiency and high reliability. As one of the important components of the circuit breaker, the spindle directly affects the efficiency and reliability of the circuit breaker.

[0003] In the prior art, the installation process of the main shaft is relatively complicated, the installation is difficult, and the installation cost of the main shaft is also high. Therefore, an operating mechanism and a circuit breaker are urgently needed. Utility Model Content

[0004] The present application provides an operating mechanism and a circuit breaker, which reduce the installation difficulty and installation cost of the main shaft.

[0005] In a first aspect, the present application provides an operating mechanism, which includes a side plate, a connecting member, and a main shaft. The side plate is provided with a mounting groove. The connecting member is an integrated structure, and the connecting member is provided with a first mounting hole. The end of the main shaft passes through the first mounting hole, the side wall of the main shaft contacts the hole wall of the first mounting hole, and the main shaft can rotate relative to the first mounting hole. The connecting member is at least partially located in the mounting groove, and the connecting member is connected to the side plate.

[0006] Through the above scheme, when installing the main shaft, the operating mechanism of the present application only needs to sleeve the connector of the integrated structure on the main shaft, and then fix the connector on the side plate to complete the installation of the main shaft. Since the connector is an integrated structure, when the connector is sleeved on the main shaft, it is only necessary to extend the end of the main shaft into the first mounting hole on the connector. Compared with the method of fixing multiple clamps in the related art, the present application does not need to connect the end of the main shaft with the hole formed between the multiple clamps, nor does it need to connect the multiple clamps after the main shaft is inserted into the hole, so the installation steps of the main shaft are simplified, thereby reducing the difficulty of installing the main shaft. In addition, compared with the prior art, the connector of the integrated design is simpler to manufacture and takes a shorter manufacturing time, which reduces the manufacturing cost of the connector, thereby reducing the use cost of the circuit breaker.

[0007] In a possible design, the connecting member is provided with a boss, the boss is provided with a second mounting hole, the second mounting hole is connected to the first mounting hole, the end of the main shaft also passes through the second mounting hole, and the side wall of the main shaft is in rotational contact with the hole wall of the second mounting hole.

[0008] Through the above scheme, the present application sets a boss on the connecting piece, and sets a second mounting hole connected with the first mounting hole on the boss. When the main shaft is connected to the connecting piece, the main shaft contacts the hole wall of the first mounting hole and the hole wall of the second mounting hole respectively. In this way, the contact area between the main shaft and the connecting piece is increased. When the main shaft rotates, the friction coefficient between the main shaft and the connecting piece can be reduced, thereby reducing the loss of the connecting piece and the main shaft, and reducing the probability of damage to the main shaft and the connecting piece. In this way, the later maintenance cost of the circuit breaker can be reduced.

[0009] In a possible design, an oil storage groove is provided on the hole wall of the first mounting hole and / or the second mounting hole.

[0010] Through the above scheme, the main shaft and the connecting member are rotatably connected to the boss, and lubricating oil is usually injected between the main shaft and the hole wall of the first mounting hole and the hole wall of the second mounting hole. An oil storage tank is arranged on the hole wall of the first mounting hole and / or the second mounting hole, which can store the lubricating oil, thereby reducing the probability of the main shaft bringing the lubricating oil out of the first mounting hole and the second mounting hole during rotation, so that the lubricating oil can always be gathered in the oil storage tank, reducing the loss of lubricating oil, thereby reducing the use cost of the circuit breaker.

[0011] In a possible design, when the hole wall of the first mounting hole is provided with an oil storage groove, the oil storage groove penetrates the hole wall of the first mounting hole along the axis direction of the main shaft. When the hole wall of the second mounting hole is provided with an oil storage groove, the oil storage groove penetrates the hole wall of the second mounting hole along the axis direction of the main shaft.

[0012] Through the above scheme, when the oil storage tank passes through the hole wall of the first mounting hole along the axial direction of the main shaft, a small part of the lubricating oil can be brought outside the contact part between the main shaft and the connecting piece during the rotation of the main shaft, so that when the main shaft moves or shakes slightly, the lubricating oil can still lubricate the rotation of the main shaft. When the oil storage tank passes through the hole wall of the second mounting hole along the axial direction of the main shaft, a small part of the lubricating oil can be brought outside the contact part between the main shaft and the boss. Similarly, when the main shaft moves or shakes slightly, the lubricating oil can still lubricate the rotation of the main shaft. By making the oil storage tank pass through the hole walls of the first mounting hole and the second mounting hole along the axial direction of the main shaft, the fault tolerance of the operating mechanism during use can be increased, thereby increasing the reliability of the circuit breaker during use.

[0013] In a possible design, there are multiple oil storage tanks, and the multiple oil storage tanks are arranged at intervals.

[0014] Through the above scheme, multiple oil storage tanks are set. Compared with a single oil storage tank, the setting of multiple oil storage tanks can make the lubricated parts of the main shaft more uniform, and the setting of multiple oil storage tanks can bring the lubricating oil in one oil storage tank to another oil storage tank during the rotation of the main shaft, thereby reducing the loss of lubricating oil and thus reducing the use cost of the circuit breaker.

[0015] In a possible design, the side plate and the connecting member at least partially overlap, a first fixing hole is provided at the portion where the side plate and the connecting member overlap, a second fixing hole is provided at the portion where the connecting member and the side plate overlap, and the first fixing hole and the second fixing hole are located opposite to each other. The operating mechanism includes a fixing member, which passes through the first fixing hole and the second fixing hole to fix the connecting member to the side plate.

[0016] Through the above scheme, a first fixing hole is set at the overlapping part of the side plate and the connecting piece, and a second fixing hole is set at the overlapping part of the connecting piece and the side plate, and the first fixing hole and the second fixing hole are positioned opposite to each other, so that the fixing of the connecting piece can be simplified, and the connecting piece is fixed to the side plate by passing the fixing piece through the first fixing hole and the second fixing hole, so that the connecting piece can be firmly fixed to the side plate, reducing the possibility of the connecting piece falling off the side plate due to loose fixation when shaking or bumping occurs during the use of the operating mechanism, thereby increasing the reliability of the operating mechanism, thereby increasing the reliability of the circuit breaker.

[0017] In a possible design, the first fixing hole and the second fixing hole are both smooth holes, and the fixing member includes a bolt and a nut. The end of the bolt passes through the first fixing hole and the second fixing hole, and the nut is sleeved on the end of the bolt and fixes the connecting member to the side plate.

[0018] According to the above solution, since the connecting member and the side plate are connected by bolts and nuts, the first fixing hole and the second fixing hole can be smooth holes, and the smooth hole is easy to manufacture and has a low manufacturing cost, and the matching installation of the bolt and nut is also relatively simple. This can reduce the manufacturing difficulty of the connecting member and the side plate, thereby reducing the manufacturing difficulty of the operating mechanism and reducing the use cost of the circuit breaker.

[0019] In a possible design, the first fixing hole is a threaded hole, the second fixing hole is a smooth hole, the fixing member is a bolt, the end of the bolt passes through the second fixing hole and is connected to the first fixing hole. Alternatively, the second fixing hole is a threaded hole, the first fixing hole is a smooth hole, the fixing member is a bolt, the end of the bolt passes through the first fixing hole and is connected to the second fixing hole.

[0020] Through the above scheme, the fixing of the connecting member to the side plate can be achieved only by the cooperation of the fixing member and the first fixing hole or the second fixing hole, thereby reducing the use of nuts and reducing the assembly cost of the operating mechanism. Moreover, by connecting the fixing member to the first mounting hole or the second mounting hole, it is possible to intuitively observe whether the fixing member is loose. When the fixing member is loose, the fixing member can be tightened at the first time, thereby increasing the reliability of the operating mechanism and thus increasing the reliability of the circuit breaker.

[0021] In a second aspect, the present application provides a circuit breaker, which includes a housing and the operating mechanism mentioned in the first aspect, wherein the operating mechanism is disposed in the housing.

[0022] Through the above scheme, the circuit breaker provided in the present application uses an integrated connector to fix the main shaft to the side plate, thereby reducing the difficulty of installing the main shaft. In addition, since the integrated connector is simple to manufacture and has a low manufacturing cost, the manufacturing cost of the circuit breaker can be reduced.

[0023] The beneficial effects of the circuit breaker provided in the second aspect can be referred to the beneficial effects brought about by the first aspect and the possible implementation methods of the first aspect, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of the operating mechanism provided in an embodiment of the present application.

[0025] Figure 2 A schematic diagram of the structure of the side panel provided in an embodiment of the present application.

[0026] Figure 3 A schematic diagram of the structure of a connector provided in an embodiment of the present application at a certain viewing angle.

[0027] Figure 4 A schematic diagram of the structure of the connecting member provided in an embodiment of the present application from another perspective.

[0028] Figure 5 A partial structural diagram of the operating mechanism provided in an embodiment of the present application.

[0029] Figure 6 for Figure 5 Magnified view of section A.

[0030] Figure 7 for Figure 5 Schematic diagram of the structure without the main axis.

[0031] Figure 8 for Figure 7 Magnified view of section B.

[0032] Description of reference numerals:

[0033] 100, side plate; 110, mounting groove; 120, first fixing hole;

[0034] 200, connecting member; 210, first mounting hole; 220, boss; 221, second mounting hole; 230, oil storage tank; 240, second fixing hole;

[0035] 300, spindle;

[0036] 400. Fasteners; 410. Bolts. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used in the specification of the application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0039] The terms "comprising" and "having" and any variations thereof in the specification, claims and drawings of this application are intended to cover but not exclude other contents. The word "a" or "an" does not exclude the presence of a plurality.

[0040] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase "embodiments" in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0041] The term "and / or" in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0042] The directional words appearing in the following description are all directions shown in the figures, and do not limit the static contact of a circuit breaker of the present application and the specific structure of the circuit breaker. For example, in the description of the present application, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present application.

[0043] In addition, the terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects rather than to describe a specific order, and may explicitly or implicitly include one or more of the features.

[0044] In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, the "connection" or "connection" of a mechanical structure may refer to a physical connection. For example, the physical connection may be a fixed connection, such as a fixed connection through a fixing member, such as a fixed connection through a screw, bolt or other fixing member; the physical connection may also be a detachable connection, such as a mutual snap connection or snap connection; the physical connection may also be an integral connection, such as welding, bonding or integral molding to form a connection for connection. The "connection" or "connection" of a circuit structure may refer to an electrical connection or a signal connection in addition to a physical connection. For example, it may be a direct connection, that is, a physical connection, or it may be an indirect connection through at least one intermediate element, as long as the circuit is connected, or it may be the internal connection of two elements; the signal connection may refer to a signal connection through a media medium, such as a radio wave, in addition to a signal connection through a circuit. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0045] A circuit breaker is an electrical protection device that automatically disconnects a circuit when the current in the circuit exceeds a predetermined value to protect electrical equipment from damage. The main shaft of the circuit breaker is a key component in the circuit breaker. The main shaft usually works with other mechanical components to ensure that the circuit breaker can reliably close and disconnect the circuit.

[0046] In the prior art, the main shaft of the circuit breaker is usually fixed by multiple clamps, and then the main shaft is fixed in the operating mechanism of the circuit breaker by multiple clamps, which makes the installation of the main shaft more difficult, and the manufacture of multiple clamps also makes the manufacturing cost of the circuit breaker higher. Based on this, the present application provides a circuit breaker to solve the above problems.

[0047] The circuit breaker provided in the present application includes a housing and an operating mechanism, wherein the operating mechanism is arranged in the housing.

[0048] The housing includes a base and an upper cover. The upper cover and the base are combined to form an installation space, and the operating mechanism is located in the installation space. The operating mechanism is used to control the moving contact of the circuit breaker to contact or separate with the static contact of the circuit breaker, so as to control the circuit breaker to close and open the circuit.

[0049] The operating mechanism comprises a side plate, a connecting piece and a main shaft. The connecting piece is an integrated structure, and the main shaft is connected to the side plate through the connecting piece.

[0050] Through the above arrangement, the circuit breaker provided in the present application uses an integrated connector to fix the main shaft to the side plate, thereby reducing the difficulty of installing the main shaft. In addition, since the integrated connector is simple to manufacture and has a low manufacturing cost, the manufacturing cost of the circuit breaker can be reduced.

[0051] In order to enable those skilled in the art to better understand the solution of the present application, the operating mechanism in the embodiment of the present application will be clearly and completely described below in conjunction with the accompanying drawings.

[0052] Figure 1 This is a schematic diagram of the overall structure of the operating mechanism provided in an embodiment of the present application. Figure 2 A schematic diagram of the structure of the side panel provided in an embodiment of the present application. Figure 3 This is a schematic diagram of the structure of the connector provided in the embodiment of the present application at a certain viewing angle. Figures 1 to 3 As shown, the present application provides an operating mechanism, which includes a side plate 100, a connecting member 200 and a main shaft 300. The side plate 100 is provided with a mounting groove 110. The connecting member 200 is an integrated structure, and the connecting member 200 is provided with a first mounting hole 210. The end of the main shaft 300 passes through the first mounting hole 210, the side wall of the main shaft 300 contacts the hole wall of the first mounting hole 210, and the main shaft 300 can rotate relative to the first mounting hole 210. The connecting member 200 is at least partially located in the mounting groove 110, and the connecting member 200 is connected to the side plate 100.

[0053] The side plate 100 may be a plate-shaped structure, and there may be two side plates 100 , which are symmetrically arranged with a gap between the two side plates 100 .

[0054] The mounting groove 110 may be a through groove structure provided on the side panel 100. The mounting groove 110 may be circular or square. The mounting groove 110 may be provided at the edge of the side panel 100 so that a notch is formed at the edge of the side panel 100. The mounting groove 110 is provided on both side panels 100, and the mounting grooves 110 provided on the two side panels 100 are located opposite to each other and have the same size. The mounting groove 110 may be integrally formed with the side panel 100, or the mounting groove 110 may be provided on the side panel 100 by carving or grooving after the side panel 100 is formed.

[0055] The connector 200 may be an integrated structure, and the connector 200 may be plate-shaped. The connector 200 may be manufactured by casting or stamping. The connector 200 is provided with a first mounting hole 210, and the first mounting hole 210 may be a through hole structure provided on the connector 200, and the first mounting hole 210 may be a circular hole. The first mounting hole 210 may be integrally formed with the connector 200, and the first mounting hole 210 may also be provided on the connector 200 by carving or slotting after the connector 200 is formed.

[0056] The main shaft 300 may be columnar. The aperture of the first mounting hole 210 may be the same as the diameter of the main shaft 300. The main shaft 300 is partially located in the gap formed by the two side plates 100. A plurality of parts are fixedly provided on the main shaft 300 located in the gap. Since there are two mounting grooves 110, there are also two connecting members 200. One end of the main shaft 300 passes through one of the connecting members 200 and is rotatably connected thereto, and the other end of the main shaft 300 passes through the other connecting member 200 and is rotatably connected thereto.

[0057] After the two ends of the main shaft 300 are respectively installed with the two connecting members 200, the two connecting members 200 are respectively installed in the installation grooves 110 on the two side plates 100. At this time, the installation of the main shaft 300 in the operating mechanism is completed.

[0058] In summary, when installing the main shaft 300, the operating mechanism of the present application only needs to sleeve the connector 200 of the integrated structure on the main shaft 300, and then fix the connector 200 on the side plate 100 to complete the installation of the main shaft 300. Since the connector 200 is an integrated structure, when the connector 200 is sleeved on the main shaft 300, it is only necessary to extend the end of the main shaft 300 into the first installation hole 210 on the connector 200. Compared with the method of fixing multiple clamps in the related art, the present application does not need to connect the end of the main shaft 300 with the hole formed between the multiple clamps, nor does it need to connect the multiple clamps after the main shaft 300 is inserted into the hole, so the installation steps of the main shaft 300 are simplified, thereby reducing the installation difficulty of the main shaft 300. In addition, compared with the prior art, the connector 200 of the integrated design is simpler to manufacture and takes a shorter manufacturing time, which reduces the manufacturing cost of the connector 200, thereby reducing the use cost of the circuit breaker.

[0059] The present application also makes further improvements to the connecting member 200. Next, the connecting member 200 in the embodiment of the present application will be clearly and completely described in conjunction with the accompanying drawings.

[0060] Figure 4 This is a schematic diagram of the structure of the connector provided in the embodiment of the present application from another perspective. Figure 3 as well as Figure 4 As shown, the connecting member 200 is provided with a boss 220, and the boss 220 is provided with a second mounting hole 221, and the second mounting hole 221 is connected to the first mounting hole 210. Figure 1 , Figure 3 and Figure 4 The end of the main shaft 300 also passes through the second mounting hole 221 , and the side wall of the main shaft 300 is in rotational contact with the hole wall of the second mounting hole 221 .

[0061] The boss 220 may be cylindrical or prismatic. The boss 220 may be integrally formed with the connector 200, or the boss 220 and the connector 200 may be separately formed and then assembled.

[0062] The second mounting hole 221 may be a through hole provided on the boss 220. The size and shape of the second mounting hole 221 may be the same as the size and shape of the first mounting hole 210. The second mounting hole 221 is connected to the first mounting hole 210.

[0063] When the connector 200 is installed in the gap formed by the side plate 100, the end of the main shaft 300 needs to pass through the first mounting hole 210 first and then through the second mounting hole 221. When the connector 200 is installed on the outside of the side plate 100, the end of the main shaft 300 needs to pass through the second mounting hole 221 first and then through the first mounting hole 210.

[0064] Through the above arrangement, the present application sets a boss 220 on the connector 200, sets a second mounting hole 221 in communication with the first mounting hole 210 on the boss 220, and when the main shaft 300 is connected to the connector 200, the main shaft 300 is in contact with the hole wall of the first mounting hole 210 and the hole wall of the second mounting hole 221, respectively. In this way, the contact area between the main shaft 300 and the connector 200 is increased, and when the main shaft 300 rotates, the friction coefficient between the main shaft 300 and the connector 200 can be reduced, thereby reducing the loss of the connector 200 and the main shaft 300, reducing the probability of damage to the main shaft 300 and the connector 200, and thus reducing the maintenance cost of the circuit breaker in the later stage.

[0065] like Figure 3 as well as Figure 4 As shown, in some embodiments, an oil storage groove 230 is provided on the hole wall of the first mounting hole 210 and / or the second mounting hole 221 .

[0066] The oil storage tank 230 may be a groove structure disposed on the hole wall of the first mounting hole 210 and / or the second mounting hole 221 .

[0067] The oil storage tank 230 can be integrally formed with the connector 200, or the oil storage tank 230 can be disposed in the first mounting hole 210 by carving or grooving after the connector 200 is formed. Similarly, the oil storage tank 230 can be integrally formed with the boss 220, or the oil storage tank 230 can be disposed in the second mounting hole 221 by carving or grooving after the boss 220 is formed.

[0068] The oil storage tank 230 can be separately provided in the first mounting hole 210, or the oil storage tank 230 can be separately provided in the second mounting hole 110. Alternatively, the oil storage tank 230 is provided in both the first mounting hole 210 and the second mounting hole 221. When the oil storage tank 230 is provided in both the first mounting hole 210 and the second mounting hole 221, the oil storage tank 230 in the first mounting hole 210 and the oil storage tank 230 in the second mounting hole 221 can be connected or not connected.

[0069] Among them, when the hole wall of the first mounting hole 210 is provided with an oil storage groove 230, the oil storage groove 230 penetrates the hole wall of the first mounting hole 210 along the axial direction of the main shaft 300, and the oil storage groove 230 can also penetrate the hole wall of the first mounting hole 210 along other directions.

[0070] When the wall of the second mounting hole 221 is provided with an oil storage groove 230, the oil storage groove 230 penetrates the wall of the second mounting hole 221 along the axial direction of the main shaft 300. The oil storage groove 230 may also penetrate the wall of the second mounting hole 221 along other directions.

[0071] The oil storage groove 230 may also be an annular groove disposed on the hole wall of the first mounting hole 210 and / or the second mounting hole 221 .

[0072] To summarize, the main shaft 300 and the connecting member 200 are all rotationally connected with the boss 220, and lubricating oil is usually injected between the main shaft 300 and the hole wall of the first mounting hole 210 and the hole wall of the second mounting hole 221. An oil storage tank 230 is provided on the hole wall of the first mounting hole 210 and / or the second mounting hole 221, which can store the lubricating oil, thereby reducing the probability of the main shaft 300 bringing the lubricating oil out of the first mounting hole 210 and the second mounting hole 221 during rotation, so that the lubricating oil can always be gathered in the oil storage tank 230, thereby reducing the loss of the lubricating oil and reducing the use cost of the circuit breaker.

[0073] Furthermore, when the oil storage tank 230 penetrates the wall of the first mounting hole 210 along the axial direction of the main shaft 300, during the rotation of the main shaft 300, a small amount of the lubricating oil can be brought to the outside of the contact portion between the main shaft 300 and the connecting member 200. In this way, when the main shaft 300 moves or shakes slightly, the lubricating oil can still lubricate the rotation of the main shaft 300.

[0074] When the oil storage tank 230 passes through the wall of the second mounting hole 221 along the axial direction of the main shaft 300, a small amount of the lubricating oil can be brought to the outside of the contact portion between the main shaft 300 and the boss 220. Similarly, when the main shaft 300 moves or shakes slightly, the lubricating oil can still lubricate the rotation of the main shaft 300.

[0075] Therefore, by making the oil storage tank 230 penetrate the hole walls of the first mounting hole 210 and the second mounting hole 221 along the axial direction of the main shaft 300, the fault tolerance of the operating mechanism during use can be increased, thereby increasing the reliability of the circuit breaker during use.

[0076] The number of the oil storage tank 230 may be one, or the number of the oil storage tank 230 may be multiple.

[0077] When there are multiple oil storage tanks 230, the multiple oil storage tanks 230 can be arranged at intervals. For example, the multiple oil storage tanks 230 can be arranged at equal intervals, or the multiple oil storage tanks 230 can also be arranged at unequal intervals.

[0078] Through the above-mentioned arrangement, a plurality of oil storage tanks 230 are provided. Compared with a single oil storage tank 230, the arrangement of a plurality of oil storage tanks 230 can make the lubricated parts of the main shaft 300 more uniform. Moreover, with the arrangement of a plurality of oil storage tanks 230, during the rotation of the main shaft 300, the main shaft 300 can also bring the lubricating oil in one oil storage tank 230 to another oil storage tank 230, thereby reducing the loss of lubricating oil and thus reducing the use cost of the circuit breaker.

[0079] Next, the assembly method of the connecting member 200 and the side plate 100 will be described with reference to the accompanying drawings.

[0080] Figure 5 A partial structural diagram of the operating mechanism provided in an embodiment of the present application. Figure 6 for Figure 5 Magnified view of section A. Figure 7 for Figure 5 Schematic diagram of the structure without the main axis. Figure 8 for Figure 7 Magnified view of section B. Figures 2 to 8 As shown, the side plate 100 and the connecting member 200 at least partially overlap, the portion where the side plate 100 and the connecting member 200 overlap is provided with a first fixing hole 120, the portion where the connecting member 200 and the side plate 100 overlap is provided with a second fixing hole 240, and the first fixing hole 120 and the second fixing hole 240 are located opposite to each other. The operating mechanism includes a fixing member 400, which passes through the first fixing hole 120 and the second fixing hole 240 to fix the connecting member 200 on the side plate 100.

[0081] The connection member 200 , except for the first mounting hole 210 , may overlap with the side plate 100 .

[0082] The first fixing hole 120 may be a through hole structure provided on the side plate 100, and the first fixing hole 120 may be a circular hole or a square hole, etc. The first fixing hole 120 may be integrally formed with the side plate 100 when the side plate 100 is formed, or the first fixing hole 120 may be provided on the side plate 100 by carving or slotting after the side plate 100 is formed. The number of the first fixing holes 120 may be two, and the first fixing holes 120 may be symmetrically provided with the mounting groove 110 as a symmetry axis.

[0083] The second fixing hole 240 may be a through hole structure provided on the connector 200, and the second fixing hole 240 may be a circular hole or a square hole, etc. The second fixing hole 240 may be integrally formed with the side plate 100 when the connector 200 is formed, or the second fixing hole 240 may be provided on the connector 200 by carving or slotting, etc. after the connector 200 is formed. Accordingly, the number of the second fixing holes 240 may be two, and the second fixing holes 240 may be symmetrically provided with the first mounting hole 210 as the symmetry axis.

[0084] The two first fixing holes 120 and the two second fixing holes 240 can make the connecting member 200 more firmly fixed on the side plate 100, reducing the possibility of the connecting member 200 shaking on the side plate 100. The two first fixing holes 120 and the two second fixing holes 240 are symmetrically arranged, so that when the main shaft 300 is installed on the side plate 100, the force on the connecting member 200 is more evenly applied, reducing the probability of the connecting member 200 falling off the side plate 100 due to uneven force on the connecting member 200.

[0085] The fixing member 400 fixes the connecting member 200 and the side plate 100, and the fixing member 400 may be a bolt 410 or an axle pin, etc. After the first fixing hole 120 and the second fixing hole 240 are aligned, the fixing member 400 passes through the first fixing hole 120 and the second fixing hole 240, and then the connecting member 200 can be fixed on the side plate 100.

[0086] Through the above arrangement, a first fixing hole 120 is set at the overlapping portion of the side panel 100 and the connecting member 200, and a second fixing hole 240 is set at the overlapping portion of the connecting member 200 and the side panel 100, and the first fixing hole 120 and the second fixing hole 240 are positioned opposite to each other, so that the fixing of the connecting member 200 can be simpler.

[0087] By using the fixing piece 400 to pass through the first fixing hole 120 and the second fixing hole 240 to fix the connecting piece 200 on the side plate 100, the connecting piece 200 can be firmly fixed on the side plate 100, thereby reducing the possibility of the connecting piece 200 falling off the side plate 100 due to loose fixation when the operating mechanism shakes or bumps during use, thereby increasing the reliability of the operating mechanism and thus the reliability of the circuit breaker.

[0088] There are many ways to fix the connecting member 200 on the side panel 100, and the present application will exemplify two of the ways below.

[0089] In the first mode, the first fixing hole 120 and the second fixing hole 240 are both smooth holes, and the fixing member 400 includes a bolt 410 and a nut. The ends of the bolt 410 pass through the first fixing hole 120 and the second fixing hole 240, and the nut is sleeved on the ends of the bolt 410 and fixes the connecting member 200 to the side plate 100.

[0090] After aligning the first fixing hole 120 and the second fixing hole 240 , the bolt 410 is passed through the first fixing hole 120 and the second fixing hole 240 , and finally a nut is sleeved on the bolt 410 and tightened to fix the connecting member 200 on the side plate 100 .

[0091] When the side plate 100 and the connecting member 200 are fixed by using the bolt 410 and the nut, if the nut is installed in the gap between the two side plates 100, it is difficult to observe whether the nut is loose, and it is impossible to accurately determine whether the connecting member 200 is loose between the side plate 100.

[0092] However, when the first method is used, since the connection piece 200 and the side plate 100 are connected by the bolt 410 and the nut, the first fixing hole 120 and the second fixing hole 240 can be smooth holes, and the smooth hole is easy to manufacture and has a low manufacturing cost, and the matching installation of the bolt 410 and the nut is also relatively simple. This can reduce the manufacturing difficulty of the connection piece 200 and the side plate 100, thereby reducing the manufacturing difficulty of the operating mechanism and reducing the use cost of the circuit breaker.

[0093] In the second mode, the first fixing hole 120 is a threaded hole, the second fixing hole 240 is a smooth hole, the fixing member 400 is a bolt 410, the end of the bolt 410 passes through the second fixing hole 240 and is connected to the first fixing hole 120. Alternatively, the second fixing hole 240 is a threaded hole, the first fixing hole 120 is a smooth hole, the fixing member 400 is a bolt 410, the end of the bolt 410 passes through the first fixing hole 120 and is connected to the second fixing hole 240.

[0094] When the first fixing hole 120 is a threaded hole and the second fixing hole 240 is a smooth hole, when the connecting member 200 needs to be fixed to the side panel 100, the fixing member 400 is first passed through the smooth hole, that is, the fixing member 400 is first passed through the second fixing hole 240, and then the fixing member 400 is connected to the first mounting hole 210 with a thread, and the connecting member 200 can be fixed to the side panel 100 by tightening the fixing member 400.

[0095] When the second fixing hole 240 is a threaded hole and the first fixing hole 120 is a smooth hole, when the connecting member 200 needs to be fixed to the side panel 100, the fixing member 400 is first passed through the smooth hole, that is, the fixing member 400 is first passed through the first fixing hole 120, and then the fixing member 400 is connected to the second mounting hole 221 provided with a thread, and the connecting member 200 can be fixed to the side panel 100 by tightening the fixing member 400.

[0096] When the second method is selected, the fixing of the connecting member 200 and the side plate 100 can be achieved only by the cooperation of the fixing member 400 and the first fixing hole 120 or the second fixing hole 240, thereby reducing the use of nuts and reducing the assembly cost of the operating mechanism. Moreover, by connecting the fixing member 400 to the first mounting hole 210 or the second mounting hole 221, it is possible to intuitively observe whether the fixing member 400 is loose. When the fixing member 400 is loose, the fixing member 400 can be tightened at the first time, thereby increasing the reliability of the operating mechanism and thus increasing the reliability of the circuit breaker.

Claims

1. An operating mechanism, characterized in that: include: A side panel, wherein a mounting groove is provided on the side panel; A connecting piece, the connecting piece is an integrated structure, and the connecting piece is provided with a first mounting hole; A main shaft, the end of which passes through the first mounting hole, the side wall of the main shaft contacts the hole wall of the first mounting hole, and the main shaft can rotate relative to the first mounting hole; The connecting member is at least partially located in the mounting groove, and the connecting member is connected to the side plate.

2. The operating mechanism according to claim 1, characterized in that: The connecting member is provided with a boss, the boss is provided with a second mounting hole, and the second mounting hole is connected to the first mounting hole; The end of the main shaft also passes through the second mounting hole, and the side wall of the main shaft is in rotational contact with the hole wall of the second mounting hole.

3. The operating mechanism according to claim 2, characterized in that: The hole wall of the first mounting hole and / or the second mounting hole is provided with an oil storage groove.

4. The operating mechanism according to claim 3, characterized in that: When the hole wall of the first mounting hole is provided with the oil storage groove, the oil storage groove penetrates the hole wall of the first mounting hole along the axial direction of the main shaft; When the hole wall of the second mounting hole is provided with the oil storage groove, the oil storage groove penetrates the hole wall of the second mounting hole along the axial direction of the main shaft.

5. The operating mechanism according to claim 3 or 4, characterized in that: There are multiple oil storage tanks, and the multiple oil storage tanks are arranged at intervals.

6. The operating mechanism according to claim 1, characterized in that: The side plate and the connecting member at least partially overlap, a first fixing hole is provided at the portion where the side plate and the connecting member overlap, a second fixing hole is provided at the portion where the connecting member and the side plate overlap, and the first fixing hole and the second fixing hole are opposite in position; The operating mechanism includes a fixing member, and the fixing member passes through the first fixing hole and the second fixing hole to fix the connecting member on the side plate.

7. The operating mechanism according to claim 6, characterized in that: The first fixing hole and the second fixing hole are both smooth holes, and the fixing member includes a bolt and a nut; The end of the bolt passes through the first fixing hole and the second fixing hole, and the nut is sleeved on the end of the bolt and fixes the connecting member to the side plate.

8. The operating mechanism according to claim 6, characterized in that: The first fixing hole is a threaded hole, the second fixing hole is a smooth hole, the fixing member is a bolt, and the end of the bolt passes through the second fixing hole and is connected to the first fixing hole; or, The second fixing hole is a threaded hole, the first fixing hole is a smooth hole, the fixing piece is a bolt, and an end of the bolt passes through the first fixing hole and is connected to the second fixing hole.

9. A circuit breaker, characterized in that: The invention comprises a housing and the operating mechanism according to any one of claims 1 to 8, wherein the operating mechanism is arranged in the housing.

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