Reset mechanism and rotary switch
By designing a reset mechanism that cooperates with the reset pressure rod and the operating shaft, the problem of unreliable reset of the tripper in the rotary switch is solved, and the effect of improving reset reliability is achieved when the interior space of the housing is limited.
Patent Information
- Application Number
- CN202420364643.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-27
- Publication Date
- 2025-02-21
- Estimated Expiration
- 2034-02-27
AI Technical Summary
In the existing rotary switches, the process of buckle driving the tripper reset is unreliable, and in the case where the inner space of the housing is limited, it is difficult to improve the reliability of the tripper reset.
A reset mechanism is designed, including a reset pressure rod and an operating shaft, and the reset pressure rod is driven to rotate through the operating shaft, so that the reset pressure rod can drive the tripper to reset, and by setting the rotation angle of the reset pressure rod is smaller than the rotation angle of the operating shaft, Reduce the area where the drive portion swept through the housing.
The reliability of the trip unit reset is improved, and excessive space is avoided because the drive unit always rotates with the operating shaft during operation, thereby saving space inside the rotary switch and reducing manufacturing costs.
Smart Images
Figure CN222514854U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of electrical equipment, and in particular to a reset mechanism and a rotary switch. Background Art
[0002] A switch is a component used to connect or disconnect a circuit. As a type of switch, rotary switches have the advantages of easy operation, strong durability and high reliability. They are widely used in the fields of electricity, machinery, mining, nuclear power and new energy power generation.
[0003] The rotary switch includes a housing and a lock and a release that cooperate with each other. The lock and the release are located in the housing. When the rotary switch needs to be released, the release acts to apply force to the lock, so that the lock rotates in the direction of opening the rotary switch. In the prior art, after the rotary switch is opened, during the process of resetting the lock, the lock drives the release to reset.
[0004] However, in the prior art, it is unreliable to use the lock to drive the release to reset. Considering that the internal space of the housing is small, a reset mechanism is urgently needed that can improve the reliability of the release reset while not occupying too much internal space of the housing. Utility Model Content
[0005] The present application provides a reset mechanism and a rotary switch, so as to improve the reset reliability of the releaser while not occupying too much internal space of the housing.
[0006] In a first aspect, the present application provides a reset mechanism, which is applied to a rotary switch, wherein the rotary switch includes a release, and the reset mechanism includes: a reset pressure rod and an operating shaft. The reset pressure rod is provided with an assembly through hole. The first end of the operating shaft passes through the assembly through hole, and the operating shaft cooperates with the reset pressure rod. When the operating shaft rotates in a first direction, the operating shaft can drive the reset pressure rod to rotate in the first direction, so that the reset pressure rod can drive the release to reset. When the operating shaft rotates in a second direction, the operating shaft can drive the reset pressure rod to rotate in the second direction, and the angle of rotation of the reset pressure rod in the second direction is less than the angle of rotation of the operating shaft in the second direction. Wherein, the first direction is opposite to the second direction.
[0007] Through the above scheme, the present application sets an assembly through hole on the reset pressure rod, and the first end of the operating shaft passes through the assembly through hole, and the operating shaft can cooperate with the reset pressure rod, so that the operating shaft can drive the reset pressure rod to rotate in the first direction to reset the release. After the rotary switch of the prior art is tripped, the lock is reset by the tension spring. Since the tension spring may fail after multiple actions, the reset reliability of the lock is reduced, and thus the reliability of the lock driving the release to reset when resetting is also reduced. After the rotary switch of the present application is tripped, the operator drives the operating shaft to rotate in the first direction by turning the knob until the reset pressure rod drives the release to reset. The power source for the operating shaft to rotate in the first direction is more reliable than that of the prior art. Therefore, the present application drives the reset pressure rod to rotate by the operating shaft, and then the reliability of resetting the release by the reset pressure rod is higher.
[0008] In addition, in the process of the operating shaft rotating in the second direction in the present application, the angle at which the reset lever rotates in the second direction driven by the operating shaft is smaller than the angle at which the operating shaft rotates in the second direction, so that the reset lever is prevented from always being driven to rotate when the operating shaft rotates in the second direction, or in other words, the reset lever is prevented from always rotating with the rotation of the operating shaft when the operating shaft rotates in the second direction. In this way, the area swept by the driving portion of the reset lever in the process of the operating shaft rotating in the second direction can be effectively reduced, thereby occupying less internal space of the housing, and it is not necessary to increase the space size inside the rotary switch to achieve normal use of the reset lever.
[0009] In a possible design, the operating shaft rotates in the second direction, so that when the rotary switch is switched from the reset position to the opening position, the rotation angle of the reset pressure rod is smaller than the rotation angle of the operating shaft.
[0010] Through the above scheme, when the rotary switch needs to be switched from the reset position to the opening position, the knob is twisted to drive the operating shaft to rotate, so that the operating shaft drives the mechanism inside the rotary switch to switch from the reset position to the opening position. In this process, the rotation angle of the reset pressure rod is smaller than the rotation angle of the operating shaft, so that the operating shaft can start to drive the reset pressure rod to rotate after rotating a certain angle, so that the driving part can be prevented from rotating with the rotation of the operating shaft during this process, thereby reducing the area swept by the driving part in the housing, so that it is not necessary to increase the size of the rotary switch housing to ensure the normal use of the reset pressure rod, saving space inside the rotary switch and reducing the manufacturing cost of the rotary switch.
[0011] In a possible design, the operating shaft rotates in the second direction so that during the process of switching the rotary switch from the opening position to the closing position, the rotation angle of the reset pressure rod is smaller than the rotation angle of the operating shaft.
[0012] Through the above solution, when the rotary switch is switched from the open position to the closed position, the operating shaft can drive the reset pressure rod to rotate only at the beginning of the process, and will not always drive the reset pressure rod to rotate during the entire process. Through such an arrangement, the area swept by the driving part in the housing can be reduced, so that it is not necessary to increase the size of the rotary switch housing to ensure the normal use of the reset pressure rod, saving space inside the rotary switch and reducing the manufacturing cost of the rotary switch.
[0013] In a possible design, the hole wall of the assembly hole is provided with a first driven part and a second driven part, and the side wall of the operating shaft is provided with a first push part and a second push part. When the operating shaft rotates in the first direction, the first push part can push the first driven part, so that the reset pressure rod rotates in the first direction. During a partial period of time when the operating shaft rotates in the second direction, the second push part pushes the second driven part, so that the reset pressure rod rotates in the second direction, and during the remaining period of time when the operating shaft rotates in the second direction, the second push part does not push the second driven part.
[0014] Through the above scheme, the first driven part and the second driven part are arranged on the hole wall of the assembly hole, and cooperate with the first push part and the second push part arranged on the side wall of the operating shaft. The first driven part and the second push part can push the first push part and the second push part respectively, so that the matching transmission between the operating shaft and the reset pressure rod is more flexible, avoiding the problem that the reset pressure rod is always rotated with the operating shaft due to the reset pressure rod being fixed on the operating shaft. During the partial period when the operating shaft rotates in the second direction, the second push part pushes the second driven part, so that the reset pressure rod rotates in the second direction. During the remaining period when the operating shaft rotates in the second direction, the second push part does not push the second driven part. In this way, it is possible to avoid the reset pressure rod always rotating with the operating shaft, reduce the occupation of the internal space of the rotary switch by the reset pressure rod during use, and thus do not need to provide enough space for the use of the reset pressure rod by increasing the rotary switch housing, thereby reducing the manufacturing cost of the rotary switch.
[0015] In a possible design, the hole wall of the assembly hole is provided with a first protrusion structure, the first driven portion is configured as the first side wall of the first protrusion structure, and the second driven portion is configured as the second side wall of the first protrusion structure. The side wall of the operating shaft is provided with a first groove structure, the first push portion is configured as the first groove wall of the first groove structure, and the second push portion is configured as the second groove wall of the first groove structure.
[0016] Through the above solution, by utilizing the cooperation between the first protrusion and the first groove, the operating shaft can effectively drive the reset pressure rod to rotate, and the cooperation between the groove and the protrusion is more stable, thereby ensuring the stability of the operation of the reset mechanism.
[0017] In a possible design, two first protrusion structures are provided, and the two first protrusion structures are symmetrically arranged on the inner wall of the assembly hole. When the operating shaft rotates in the first direction, the first push portion can push the first side walls of the two first protrusion structures at the same time. When the operating shaft rotates in the second direction, the second push portion can push the second side walls of the two first protrusion structures at the same time.
[0018] Through the above scheme, the two first pushing portions are used to push the first side walls of the two first protruding structures at the same time, and the two second pushing portions are used to push the second side walls of the two first protruding structures at the same time, which further improves the design flexibility of the matching structure of the operating shaft and the reset pressure rod, and further improves the stability of the reset pressure rod driven by the operating shaft to rotate, thereby further improving the stability of the operation of the reset mechanism.
[0019] In a possible design, the hole wall of the assembly hole is provided with a second groove structure, the first driven portion is configured as the first groove wall of the second groove structure, and the second driven portion is configured as the second groove wall of the second groove structure. The side wall of the operating shaft is provided with a second protrusion structure, the first push portion is configured as the first side wall of the second protrusion structure, and the second push portion is configured as the second side wall of the second protrusion structure.
[0020] Through the above solution, a second groove structure is formed by slotting the assembly through hole, and a second protrusion structure is provided on the operating shaft, which reduces the manufacturing difficulty of the reset mechanism, thereby improving the production speed of the rotary switch and reducing the time cost of producing the rotary switch.
[0021] In a possible design, the hole wall of the assembly hole is provided with a first stopper structure and a second stopper structure. The first driven portion is configured as the first side wall of the first stopper structure, and the second driven portion is configured as the second side wall of the second stopper structure. The side wall of the operating shaft is provided with a third protruding structure, the first push portion is configured as the first side wall of the third protruding structure, and the second push portion is configured as the second side wall of the third protruding structure.
[0022] Through the above scheme, the first block structure and the second block structure are respectively matched with the third protrusion structure, which is simpler than other forms of matching, and the first block structure and the second block structure are respectively matched with the third protrusion structure to prevent the operating shaft and the reset pressure rod from slipping, thereby ensuring the operating stability of the reset mechanism.
[0023] In a second aspect, the present application provides a rotary switch, comprising: a housing, a release, and the reset mechanism provided in the first aspect, wherein the reset mechanism and the release are both located in the housing.
[0024] Through the above scheme, since the reset pressure rod in the reset mechanism is provided with a driving part, and the abutment between the driving part and the release is more reliable, the problem of failure of the abutment between the driving part and the release will not occur, so the reliability of the reset of the release can be improved. And in the process of the operating shaft of the reset mechanism in the present application rotating toward the second direction, the angle of the reset pressure rod driven by the operating shaft to rotate toward the second direction is less than the angle of the operating shaft rotating toward the second direction, so that it can be avoided that the reset pressure rod is always driven to rotate when the operating shaft rotates toward the second direction, or in other words, it can be avoided that the reset pressure rod always rotates with the rotation of the operating shaft during the rotation of the operating shaft toward the second direction. In this way, the area swept by the driving part of the reset pressure rod during the rotation of the operating shaft toward the second direction can be effectively reduced, so that less internal space of the housing can be occupied, and the normal use of the reset pressure rod does not need to be realized by increasing the space size inside the rotary switch.
[0025] In a possible design, a limit retaining ring is provided on the inner wall of the shell, and the reset pressure rod portion of the reset mechanism is located in the space limited by the limit retaining ring.
[0026] Through the above scheme, the reset pressure rod is limited by the limit ring, which can prevent the reset pressure rod from moving in the housing of the rotary switch in a direction perpendicular to the operating axis, ensuring that the operating axis can effectively drive the reset pressure rod to rotate, thereby improving the operating reliability of the reset mechanism.
[0027] The beneficial effects provided in the above-mentioned second aspect and various possible designs of the above-mentioned second aspect can refer to the beneficial effects brought about by the above-mentioned first aspect and various possible implementation methods of the first aspect, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 A schematic diagram of the internal structure of a rotary switch provided in an embodiment of the present application when in a closed position.
[0029] Figure 2 A schematic diagram of the internal structure of a rotary switch provided in an embodiment of the present application when in an open position.
[0030] Figure 3 A schematic diagram of the internal structure of a release during a resetting process provided in an embodiment of the present application.
[0031] Figure 4 A schematic diagram of the internal structure of a release provided in an embodiment of the present application when in a reset position.
[0032] Figure 5 A schematic structural diagram of a reset pressure rod provided in an embodiment of the present application.
[0033] Figure 6A schematic diagram of the structure of an operating shaft provided in an embodiment of the present application.
[0034] Figure 7 A partial cross-sectional view of an assembly structure of a reset pressure rod and an operating shaft provided in an embodiment of the present application and a partial enlarged view of the partial cross-sectional view.
[0035] Figure 8 A partial cross-sectional view of another assembly structure of a reset pressure rod and an operating shaft provided in an embodiment of the present application and a partial enlarged view of the partial cross-sectional view.
[0036] Fig. 9 A schematic diagram of the overall structure of a rotary switch provided in an embodiment of the present application.
[0037] Fig.10 A schematic diagram of the internal structure of a top cover provided in an embodiment of the present application.
[0038] Description of reference numerals:
[0039] 100. Release device;
[0040] 200, reset pressure rod; 210, main body; 220, assembly through hole; 221, first driven part; 222, second driven part; 223, second groove structure; 224, first stop block structure; 225, second stop block structure; 230, driving part;
[0041] 300, operating shaft; 310, main shaft; 311, first end; 312, second end; 320, lever; 330, first push portion; 340, second protruding structure;
[0042] 400, housing; 410, base; 420, upper cover; 430, limit stop ring; 440, knob;
[0043] X, first direction; Y, second direction. DETAILED DESCRIPTION
[0044] 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.
[0045] 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.
[0046] 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.
[0047] 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.
[0048] 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.
[0049] The directional words appearing in the following description are all directions shown in the drawings, and do not limit a specific structure of the present application. 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", etc. 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, rather than indicating or implying 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.
[0050] 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.
[0051] In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" 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-on or snap-fit connection; the physical connection may also be an integral connection, such as a connection formed by welding, bonding or integral molding. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.
[0052] In order to enable those skilled in the art to better understand the solution of the present application, the reset mechanism provided in the embodiment of the present application will be clearly and completely described below in conjunction with the accompanying drawings.
[0053] Figure 1 A schematic diagram of the internal structure of a rotary switch provided in an embodiment of the present application when in a closed position. Figure 2 A schematic diagram of the internal structure of a rotary switch provided in an embodiment of the present application when in an open position. Figure 3 A schematic diagram of the internal structure of a release during a resetting process provided in an embodiment of the present application. Figure 4 A schematic diagram of the internal structure of a release provided in an embodiment of the present application when in a reset position.
[0054] like Figures 1 to 4 As shown, the present application provides a reset mechanism, which is applied to a rotary switch, wherein the rotary switch includes a release 100, and the reset mechanism includes a reset pressure rod 200 and an operating shaft 300. The reset pressure rod 200 is provided with an assembly through hole 220. The first end of the operating shaft 300 passes through the assembly through hole 220, and the operating shaft 300 cooperates with the reset pressure rod 200. When the operating shaft 300 rotates in a first direction X, the operating shaft 300 can drive the reset pressure rod 200 to rotate in the first direction X, so that the reset pressure rod 200 can drive the release 100 to reset. When the operating shaft 300 rotates in a second direction Y, the operating shaft 300 can drive the reset pressure rod 200 to rotate in the second direction Y, and the angle of rotation of the reset pressure rod 200 in the second direction Y is smaller than the angle of rotation of the operating shaft 300 in the second direction Y.
[0055] The first direction X is opposite to the second direction Y, and one of the first direction X and the second direction Y may be a clockwise direction, and the other may be a counterclockwise direction. From the perspective of the drawings of the present application, the first direction X in the present application is a counterclockwise direction, and the second direction Y is a clockwise direction, but this does not constitute a limitation on the technical solution of the present application.
[0056] The rotary switch includes a housing 400. The housing 400 includes a base 410 and an upper cover 420. The upper cover 420 and the base 410 are covered to form an installation space. The reset mechanism and the release 100 are both located in the installation space. The release 100 is used to trip the rotary switch, and the reset mechanism is used to reset the release 100.
[0057] Figure 5 This is a schematic diagram of the structure of a reset pressure rod provided in an embodiment of the present application. Figure 5 As shown, the reset pressure rod 200 may include a main body 210 and a driving part 230 that are connected to each other. The main body 210 may be disc-shaped. The disc-shaped main body 210 will not collide with other parts inside the rotary switch during the rotation with the operating shaft 300, thereby ensuring the use safety of the internal parts of the rotary switch and improving the service life of the rotary switch. The driving part 230 extends outward along the center of the main body 210, and the driving part 230 may be a plate-shaped structure. The assembly hole 220 is a through hole provided on the main body 210, and the assembly hole 220 may be a combination of one or more of a circular hole, a square hole, and an elliptical hole.
[0058] Figure 6 This is a schematic diagram of the structure of an operating shaft provided in an embodiment of the present application. Figure 6 As shown, the operating shaft 300 includes a main shaft 310 and a lever 320 connected to each other. The main shaft 310 can be a columnar structure, and the first end 311 of the main shaft 310 passes through the assembly hole 220 set in the reset pressure rod 200, and extends out of the housing 400 to be fixedly connected to the knob 440 set outside the housing 400. The knob 440 can be used to control the manual opening and closing of the rotary switch. The lever 320 can be a roughly disc-shaped structure, the lever 320 is located inside the housing 400, and the lever 320 is fixedly connected to the second end 312 of the main shaft 310.
[0059] It should be noted that, based on the matching relationship between the assembly hole 220 and the main shaft 310, the size of the assembly hole 220 needs to be greater than or equal to the cross-sectional area of the main shaft 310, so that the first end 311 of the main shaft 310 can smoothly pass through the assembly hole 220 and cooperate with the reset pressure rod 200 for transmission. The cross-sectional area of the main shaft 310 is perpendicular to the axis of the main shaft 310.
[0060] like Figures 1 to 4 As shown, an intermediate component 500 can be arranged between the driving part 230 of the reset pressure rod 200 and the release 100. The intermediate component 500 is slidably arranged in the base 410. The first part of the intermediate component 500 cooperates with the reset pressure rod 200, and the second part of the intermediate component cooperates with the release 100.
[0061] When the rotary switch is in the closing position and needs to be automatically opened, the release 100 is activated and the lock is pushed by the intermediate component to automatically open the rotary switch. During the automatic opening of the rotary switch and the resetting of the release 100, the operating shaft 300 rotates in the first direction X. Under the cooperation of the operating shaft 300 and the reset pressure rod 200, the main body 210 can rotate in the first direction X with the operating shaft 300, and the driving part 230 also rotates in the first direction X driven by the main body 210. During the rotation of the driving part 230 in the first direction X, the end of the driving part 230 away from the main body 210 abuts against the intermediate component 500 and can push the intermediate component 500 to operate, so that the intermediate component 500 drives the release 100 to reset.
[0062] When the release 100 completes the reset, the operating shaft 300 rotates in the second direction Y, and the operating shaft 300 can intermittently drive the reset pressure rod 200 to rotate in the second direction Y, so that the reset pressure rod 200 returns to the initial position and the rotary switch is in the closed position. The initial position refers to the position of the reset pressure rod 200 when the rotary switch is in the open position and the operating shaft 300 does not drive the reset pressure rod 200 to rotate in the first direction X.
[0063] In summary, the present application sets an assembly hole 220 on the reset pressure rod 200, and the first end 311 of the operating shaft 300 passes through the assembly hole 220, and the operating shaft 300 can cooperate with the reset pressure rod 200, so that the operating shaft 300 can drive the reset pressure rod 200 to rotate in the first direction X to reset the releaser 100. After the rotary switch of the prior art is tripped, the lock is reset by the tension spring. Since the tension spring may fail after multiple actions, the reset reliability of the lock is reduced, and thus the reliability of the lock driving the releaser 100 to reset when resetting is also reduced. After the rotary switch of the present application is tripped, the operator drives the operating shaft 300 to rotate in the first direction X by turning the knob 440 until the reset pressure rod 200 drives the releaser 100 to reset. The power source for the operating shaft 300 to rotate in the first direction X is more reliable than that of the prior art. Therefore, the present application drives the reset pressure rod 200 to rotate through the operating shaft 300, and then resets the releaser 100 through the reset pressure rod 200, which has a higher reliability.
[0064] In addition, in the process of the operating shaft 300 rotating in the second direction Y in the present application, the angle at which the reset lever 200 rotates in the second direction Y driven by the operating shaft 300 is smaller than the angle at which the operating shaft 300 rotates in the second direction Y. In this way, it is possible to avoid the reset lever 200 always being driven to rotate when the operating shaft 300 rotates in the second direction Y, or in other words, it is possible to avoid the reset lever 200 always rotating with the rotation of the operating shaft 300 when the operating shaft 300 rotates in the second direction Y. In this way, the area swept by the driving part 230 of the reset lever 200 in the process of the operating shaft 300 rotating in the second direction Y can be effectively reduced, thereby occupying less internal space of the housing 400, and it is not necessary to increase the space size inside the rotary switch to achieve normal use of the reset lever 200.
[0065] In summary, the present application utilizes the operating shaft 300 to drive the reset pressure rod 200 to rotate, so that the reset pressure rod 200 drives the release 100 to reset, which can improve the reset reliability of the release 100 while not occupying too much internal space of the housing 400.
[0066] Since the process of the operating shaft 300 rotating in the second direction Y includes two processes: the rotary switch is switched from the reset position to the open position, and the rotary switch is switched from the open position to the closed position, the angle of rotation of the reset pressure rod 200 in the second direction Y is smaller than the angle of rotation of the operating shaft 300 in the second direction Y, which may include at least the following two possible situations.
[0067] In a first possible situation, the operating shaft 300 rotates in the second direction Y, so that during the process of switching the rotary switch from the reset position to the opening position, the rotation angle of the reset pressure rod 200 is smaller than the rotation angle of the operating shaft 300 .
[0068] For example, when the rotary switch is switched from the reset position to the opening position, assuming that the rotation angle of the operating shaft 300 is 90°, the rotation angle of the reset pressure rod 200 may be 75° or 80°. The rotation angle of the reset pressure rod 200 is the angle through which the reset pressure rod 200 rotates when the operating shaft 300 rotates, and the rotation angle of the operating shaft 300 is the angle through which the operating shaft 300 rotates when the knob 440 drives the operating shaft 300 to rotate.
[0069] Through the above arrangement, when the rotary switch needs to be switched from the reset position to the opening position, the knob 440 is twisted to drive the operating shaft 300 to rotate, so that the operating shaft 300 drives the mechanism inside the rotary switch to switch from the reset position to the opening position. In this process, the rotation angle of the reset pressure rod 200 is smaller than the rotation angle of the operating shaft 300, so that the operating shaft 300 can start to drive the reset pressure rod 200 to rotate after rotating a certain angle, so that the driving part 230 can be prevented from rotating with the rotation of the operating shaft 300 during this process, thereby reducing the area swept by the driving part 230 in the housing 400, so that it is not necessary to increase the size of the rotary switch housing 400 to ensure the normal use of the reset pressure rod 200, saving space inside the rotary switch and reducing the manufacturing cost of the rotary switch.
[0070] In a second possible situation, the operating shaft 300 rotates in the second direction Y, so that during the process of switching the rotary switch from the opening position to the closing position, the rotation angle of the reset pressure rod 200 is smaller than the rotation angle of the operating shaft 300 .
[0071] For example, when the rotary switch is switched from the open position to the closed position, assuming that the rotation angle of the operating shaft 300 is 90°, the rotation angle of the reset pressure rod 200 may be 15° or 20°, etc.
[0072] Through the above arrangement, when the rotary switch is switched from the open position to the closed position, the operating shaft 300 can drive the reset pressure rod 200 to rotate only at the beginning of the process, and will not always drive the reset pressure rod 200 to rotate throughout the entire process. Through such an arrangement, the area swept by the driving part 230 in the housing 400 can be reduced, so that it is not necessary to increase the size of the rotary switch housing 400 to ensure the normal use of the reset pressure rod 200, saving space inside the rotary switch and reducing the manufacturing cost of the rotary switch.
[0073] Please continue to refer to Figures 1 to 5 As shown, the hole wall of the assembly hole 220 is provided with a first driven portion 221 and a second driven portion 222, and the side wall of the operating shaft 300 is provided with a first push portion 330 and a second push portion. When the operating shaft 300 rotates in the first direction X, the first push portion 330 can push the first driven portion 221, so that the reset pressure rod 200 rotates in the first direction X. During a partial period of time when the operating shaft 300 rotates in the second direction Y, the second push portion pushes the second driven portion 222, so that the reset pressure rod 200 rotates in the second direction Y, and during the remaining period of time when the operating shaft 300 rotates in the second direction Y, the second push portion does not push the second driven portion 222.
[0074] The first driven portion 221 may be located on the rotation track of the first resisting portion 330, so that the first resisting portion 330 can resist the first driven portion 221 when rotating in the first direction X, so that the reset pressure bar 200 rotates in the first direction X. The second driven portion 222 may be located on the rotation track of the second resisting portion, so that the second resisting portion can resist the second driven portion 222 when rotating in the second direction Y, so that the reset pressure bar 200 rotates in the second direction Y.
[0075] In some examples, part of the time period may correspond to part of the process of the rotary switch switching from the reset position to the open position, and accordingly, the remaining time period may correspond to part of the process or the entire process of the rotary switch switching from the open position to the closed position. In other examples, part of the time period may correspond to the entire process of the rotary switch switching from the reset position to the open position, and accordingly, the remaining time period may correspond to part of the process of the rotary switch switching from the open position to the closed position.
[0076] In this way, the reset pressure rod 200 can be prevented from always rotating with the operating shaft 300, thereby reducing the space occupied by the reset pressure rod 200 in the rotary switch during use, and thus there is no need to increase the size of the rotary switch housing 400 to ensure the normal use of the reset pressure rod 200, thereby saving space in the rotary switch and reducing the manufacturing cost of the rotary switch.
[0077] It should be noted that the first driven portion 221, the second driven portion 222, the first push portion 330 and the second push portion can have various design forms, and the present application does not limit the design forms of the first driven portion 221, the second driven portion 222, the first push portion 330 and the second push portion. Only some design forms of the first driven portion 221, the second driven portion 222, the first push portion 330 and the second push portion are exemplified below.
[0078] In a possible design, the hole wall of the assembly hole 220 is provided with a first protrusion structure, the first driven portion 221 is configured as the first side wall of the first protrusion structure, and the second driven portion 222 is configured as the second side wall of the first protrusion structure. The side wall of the operating shaft 300 is provided with a first groove structure, the first push portion 330 is configured as the first groove wall of the first groove structure, and the second push portion is configured as the second groove wall of the first groove structure.
[0079] The first protruding structure may be a triangular structure, a square structure, a trapezoidal structure, etc. The first protruding structure includes a first side wall and a second side wall. When the first protruding structure is a triangular structure, the first side wall and the second side wall are two adjacent side walls on the first protruding structure. When the first protruding structure is a square structure or a trapezoidal structure, the first side wall and the second side wall are two opposite side walls on the first protruding structure.
[0080] The first protruding structure may be provided as one. When the operating shaft 300 rotates in the first direction X, the first pushing portion 330 pushes the first side wall of the first protruding structure. When the operating shaft 300 rotates in the second direction Y, the second pushing portion pushes the second side wall of the first protruding structure.
[0081] Two first protruding structures may also be provided. When two first protruding structures are provided, the two first protruding structures are symmetrically provided on the inner wall of the assembly hole 220. When the operating shaft 300 rotates in the first direction X, the first push portion 330 can push the first side walls of the two first protruding structures at the same time. When the operating shaft 300 rotates in the second direction Y, the second push portion can push the second side walls of the two first protruding structures at the same time.
[0082] The first groove structure may be a square groove. The first groove wall and the second groove wall are both one side of the first groove facing the hole wall of the assembly hole 220. The first groove wall and the second groove wall are symmetrically arranged.
[0083] Figure 7 A partial cross-sectional view of an assembly structure of a reset pressure rod and an operating shaft provided in an embodiment of the present application and a partial enlarged view of the partial cross-sectional view, wherein: Figure 7 Only a portion of the operating shaft is intercepted and cut into sections to show the matching relationship between the reset lever and the operating shaft. Figure 5 and Figure 7 In the second possible design, the hole wall of the assembly hole 220 is provided with a second groove structure 223, the first driven portion 221 is configured as the first groove wall of the second groove structure 223, and the second driven portion 222 is configured as the second groove wall of the second groove structure 223. The side wall of the operating shaft 300 is provided with a second protrusion structure 340, the first push portion 330 is configured as the first side wall of the second protrusion structure 340, and the second push portion is configured as the second side wall of the second protrusion structure 340.
[0084] The second groove structure 223 may be provided with two. When the second groove structure 223 is provided with two, the two second groove structures 223 are symmetrically arranged on the inner wall of the assembly through hole 220. At the same time, the second protrusion structure 340 may also be provided with two. The two second protrusion structures 340 are symmetrically arranged on the side wall of the operating shaft 300, and the two second protrusion structures 340 are respectively located in the two second groove structures 223. When the operating shaft 300 rotates in the first direction X, the first side walls of the two second protrusion structures 340 can simultaneously push against the first groove walls of the two second groove structures 223. When the operating shaft 300 rotates in the second direction Y, the second side walls of the two second protrusion structures 340 can simultaneously push against the second groove walls of the two second groove wall structures.
[0085] The second groove structure 223 may also be provided as one. Meanwhile, the second protrusion structure 340 may also be provided as one. When the operating shaft 300 rotates in the first direction X, the first side wall of the second protrusion structure 340 pushes against the first groove wall of the second groove structure 223. When the operating shaft 300 rotates in the second direction Y, the second side wall of the second protrusion structure 340 pushes against the second groove wall of the second groove structure 223.
[0086] Figure 8 A partial cross-sectional view of another assembly structure of a reset pressure rod and an operating shaft provided in an embodiment of the present application and a partial enlarged view of the partial cross-sectional view, wherein: Figure 8 Only a portion of the operating shaft is cut and sectioned to show the matching relationship between the reset lever and the operating shaft. Figure 8 As shown, in the third possible design, the hole wall of the assembly hole 220 is provided with a first stopper structure 224 and a second stopper structure 225. The first driven portion 221 is configured as a first side wall of the first stopper structure 224, and the second driven portion 222 is configured as a second side wall of the second stopper structure 225. The side wall of the operating shaft 300 is provided with a third protruding structure, the first push portion 330 is configured as a first side wall of the third protruding structure, and the second push portion is configured as a second side wall of the third protruding structure.
[0087] The first stopper structure 224 can be a triangular structure, a square structure or a trapezoidal structure, etc. The first stopper structure 224 includes a first side wall and a second side wall. When the first stopper structure 224 is a triangular structure, the first side wall and the second side wall are two adjacent side walls on the first stopper structure 224. When the first stopper structure 224 is a square structure or a trapezoidal structure, the first side wall and the second side wall are two side walls located opposite to each other on the first stopper structure 224. The design of the second stopper structure 225 is the same as that of the first stopper structure 224, and will not be repeated here.
[0088] There can be one third protruding structure. When there is one third protruding structure, when the operating shaft 300 rotates in the first direction X, the first side wall of the third protruding structure pushes against the first side wall of the first stop block structure 224, and when the operating shaft 300 rotates in the second direction Y, the second side wall of the third protruding structure pushes against the second side wall of the second stop block structure 225.
[0089] There may also be two third protruding structures. When there are two third protruding structures, when the operating shaft 300 rotates in the first direction X, the first side walls of the two third protruding structures respectively push against the first side wall of the first stop block structure 224 and the first side wall of the second stop block structure 225, and when the operating shaft 300 rotates in the second direction Y, the second side walls of the two third protruding structures respectively push against the second side wall of the first stop block structure 224 and the second side wall of the second stop block structure 225.
[0090] In summary, when the operating shaft 300 rotates in the first direction X, the first pushing portion 330 can push the first driven portion 221, so that the operating shaft 300 drives the reset pressure rod 200 to rotate in the first direction X. When the operating shaft 300 rotates in the second direction Y, the second pushing portion can push the second driven portion 222, so that the operating shaft 300 drives the reset pressure rod 200 to rotate in the second direction Y. Through such a design, the design flexibility of the matching structure of the operating shaft 300 and the reset pressure rod 200 is increased.
[0091] Fig. 9 The overall structure diagram of a rotary switch provided in the embodiment of the present application is shown in FIG. The embodiment of the present application also provides a rotary switch, such as Fig. 9 As shown, the rotary switch comprises: a housing 400 , a release 100 and the reset mechanism mentioned in the above embodiment, and the reset mechanism and the release 100 are both located in the housing 400 .
[0092] The structures of the housing 400 , the release 100 and the reset mechanism have been described in detail in the previous embodiments, so they will not be described again in this application.
[0093] Through the above arrangement, the reset pressure rod 200 in the reset mechanism is provided with a driving part 230, which solves the problem that after the rotary switch in the prior art is released, the lock is reset by the tension spring, and since the tension spring may fail after multiple actions, the reset reliability of the lock is reduced, and thus the reliability of the lock driving the release 100 to reset when the lock is reset is also reduced, thereby improving the reset reliability of the rotary switch. In addition, in the process of the operating shaft 300 of the reset mechanism in the present application rotating toward the second direction Y, the angle of the reset pressure rod 200 driven by the operating shaft 300 to rotate toward the second direction Y is less than the angle of the operating shaft 300 rotating toward the second direction Y, so that it can be avoided that the reset pressure rod 200 is always driven to rotate when the operating shaft 300 rotates toward the second direction Y, or in other words, it can be avoided that the reset pressure rod 200 is always rotated with the rotation of the operating shaft 300 during the rotation of the operating shaft 300 toward the second direction Y. In this way, the area swept by the driving portion 230 of the reset lever 200 during the rotation of the operating shaft 300 in the second direction Y can be effectively reduced, thereby occupying less internal space of the housing 400 and eliminating the need to increase the space size inside the rotary switch to achieve normal use of the reset lever 200.
[0094] Fig.10 This is a schematic diagram of the internal structure of the upper cover provided in the embodiment of the present application. Fig.10 As shown, a limit retaining ring 430 is provided on the inner wall of the housing 400 , and a reset pressure rod 200 of the reset mechanism is partially located in the space limited by the limit retaining ring 430 .
[0095] The stop ring 430 may be a semicircular arc structure, so that the stop ring 430 has an opening for the driving part 230 to pass through. The size of the opening of the stop ring 430 is the same as the size of the area swept by the driving part 230 of the reset pressure rod 200 when rotating. The thickness of the stop ring 430 is the same as the thickness of the reset pressure rod 200, or the thickness of the stop ring 430 is slightly greater than the thickness of the reset pressure rod 200.
[0096] Through the above-mentioned arrangement, the reset pressure rod 200 is limited by the limit ring 430, so that the reset pressure rod 200 can be prevented from moving in the housing 400 of the rotary switch in a direction perpendicular to the operating shaft 300, thereby ensuring that the operating shaft 300 can effectively drive the reset pressure rod 200 to rotate, thereby improving the operating reliability of the reset mechanism.
Claims
1. A reset mechanism, applied to a rotary switch, the rotary switch comprising a release, characterized in that: The reset mechanism comprises: The reset pressure rod is provided with an assembly through hole; An operating shaft, a first end of which passes through the assembly hole, and the operating shaft cooperates with the reset pressure rod; When the operating shaft rotates in a first direction, the operating shaft can drive the reset pressure rod to rotate in the first direction, so that the reset pressure rod can drive the releaser to reset; When the operating shaft rotates in the second direction, the operating shaft can drive the reset pressure rod to rotate in the second direction, and the rotation angle of the reset pressure rod in the second direction is smaller than the rotation angle of the operating shaft in the second direction; The first direction is opposite to the second direction.
2. The reset mechanism according to claim 1, characterized in that: The operating shaft rotates in the second direction to switch the rotary switch from the reset position to the opening position, and the rotation angle of the reset pressure rod is smaller than the rotation angle of the operating shaft.
3. The reset mechanism according to claim 1, characterized in that: The operating shaft rotates in the second direction, so that when the rotary switch is switched from the opening position to the closing position, the rotation angle of the reset pressure rod is smaller than the rotation angle of the operating shaft.
4. The reset mechanism according to any one of claims 1 to 3, characterized in that: The hole wall of the assembly through hole is provided with a first driven portion and a second driven portion, and the side wall of the operating shaft is provided with a first push portion and a second push portion; When the operating shaft rotates in the first direction, the first pushing portion can push the first driven portion, so that the reset pressure rod rotates in the first direction; During a partial period when the operating shaft rotates in the second direction, the second pushing portion pushes the second driven portion, so that the reset pressure rod rotates in the second direction. During the remaining period when the operating shaft rotates in the second direction, the second pushing portion does not push the second driven portion.
5. The reset mechanism according to claim 4, characterized in that: The hole wall of the assembly via is provided with a first protruding structure, the first driven portion is configured as a first side wall of the first protruding structure, and the second driven portion is configured as a second side wall of the first protruding structure; The side wall of the operating shaft is provided with a first groove structure, the first push portion is configured as a first groove wall of the first groove structure, and the second push portion is configured as a second groove wall of the first groove structure.
6. The reset mechanism according to claim 5, characterized in that: There are two first protrusion structures, and the two first protrusion structures are symmetrically arranged on the inner wall of the assembly hole; When the operating shaft rotates toward the first direction, the first pushing portion can simultaneously push the first side walls of the two first protruding structures; when the operating shaft rotates toward the second direction, the second pushing portion can simultaneously push the second side walls of the two first protruding structures.
7. The reset mechanism according to claim 4, characterized in that: The hole wall of the assembly through hole is provided with a second groove structure, the first driven portion is configured as a first groove wall of the second groove structure, and the second driven portion is configured as a second groove wall of the second groove structure; The side wall of the operating shaft is provided with a second protruding structure, the first pushing portion is configured as the first side wall of the second protruding structure, and the second pushing portion is configured as the second side wall of the second protruding structure.
8. The reset mechanism according to claim 4, characterized in that: The hole wall of the assembly through hole is provided with a first stopper structure and a second stopper structure; The first driven portion is configured as a first side wall of the first stopper structure, and the second driven portion is configured as a second side wall of the second stopper structure; The side wall of the operating shaft is provided with a third protruding structure, the first pushing portion is configured as a first side wall of the third protruding structure, and the second pushing portion is configured as a second side wall of the third protruding structure.
9. A rotary switch, characterized in that: The invention comprises a housing, a release and a reset mechanism as claimed in any one of claims 1 to 8, wherein the reset mechanism and the release are both located in the housing.
10. The rotary switch according to claim 9, characterized in that: A limit retaining ring is arranged on the inner wall of the shell, and the reset pressure rod part of the reset mechanism is located in the space limited by the limit retaining ring.