Rotating shaft structure, transmission system, operating mechanism and switch equipment assembly
By designing a rotating shaft structure and combining microswitches and blocking components, the axial free movement and restriction of the rotating shaft are realized, solving the problem of preventing accidental contact in the rotating shaft structure, ensuring that the equipment is operated in the correct position, and improving the reliability and safety of operation.
Patent Information
- Application Number
- CN202520237856.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-14
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2035-02-14
AI Technical Summary
In a rotating shaft structure, it is quite difficult to achieve free axial movement while restricting axial movement and preventing accidental contact, especially to prevent the unexpected rotation or translation of the rotating shaft from causing further operation of the equipment.
A rotating shaft structure is designed, comprising a rotating shaft rotatably mounted on a housing, capable of rotating and translating between different positions. A combination of a microswitch and a blocking element enables position limitation and accidental activation prevention. This structure includes a microswitch and a blocking element to ensure that the rotating shaft triggers a specific switch at different positions, preventing accidental operation.
It achieves a smooth switching between free axial movement and restriction of the rotating shaft, prevents accidental contact, ensures that the equipment only operates when it is in the correct position, and improves the reliability and safety of operation.
Smart Images
Figure CN223624870U_ABST
Abstract
Description
Technical Field
[0001] This application relates to a rotary shaft structure, a transmission system, an operating mechanism, and a switchgear assembly. Background Technology
[0002] In some rotating shaft structures, it is necessary to allow free axial movement of the rotating shaft while simultaneously restricting its axial movement. Achieving this functionality is challenging if the rotating shaft structure is complex. In particular, it is also necessary to implement a function to prevent accidental contact, that is, to prevent accidental rotation or translation of the rotating shaft from causing further operation of the equipment to which it is applied. Utility Model Content
[0003] To overcome the above problems, this application provides a rotating shaft structure, comprising:
[0004] A rotating shaft, rotatably mounted on the housing, is capable of rotating between a first rotational position and a second rotational position. The rotating shaft is also configured to translate inwardly from an initial position toward a first translational position and a second translational position along its rotational axis, the first translational position being located between the initial position and the second translational position.
[0005] In the first rotational position, the rotation axis is configured to be able to translate only from the initial position to the first translational position, and in the second rotational position, the rotation axis is configured to be able to translate from the initial position to the second translational position.
[0006] The first micro switch is fixedly mounted on the housing. The first micro switch is positioned so that it can be triggered by a part of the rotating shaft when the rotating shaft is in the first rotating position.
[0007] A second microswitch is fixedly mounted on the housing. The second microswitch is positioned such that it is triggered by the first part of the rotating shaft structure when the rotating shaft is in the first translational position, and triggered by the second part of the rotating shaft structure (different from the first part) when the rotating shaft is in the second translational position.
[0008] The third micro switch is fixedly mounted on the housing. The third micro switch is positioned so that it can be triggered by pressing another part of the rotating shaft when the rotating shaft is in the second rotating position.
[0009] Advantageously, the rotating shaft structure further includes a first blocking member and a second blocking member fixedly mounted on the housing, the second blocking member being positioned further inward than the first blocking member. The rotating shaft has a first mating member and a second mating member, the second mating member being positioned further inward than the first mating member.
[0010] When the rotating shaft is in the first rotational position, the first blocking member and the first mating member at least partially overlap along the rotation axis, such that when the rotating shaft is translated to the first translational position, the first blocking member abuts against the first mating member.
[0011] When the rotating shaft is in the second rotational position, the first blocking member and the first mating member do not overlap along the rotation axis, and the second blocking member and the second mating member overlap at least partially along the rotation axis, such that when the rotating shaft is translated to the second translational position, the second blocking member abuts against the second mating member.
[0012] Advantageously, the rotating shaft structure has:
[0013] The first plate is fixed to the rotation axis and extends perpendicular to the rotation axis;
[0014] The second plate, rotatably mounted to the rotation axis, extends parallel to the first plate and is positioned closer to the second microswitch than the first plate. The second plate is configured to rotate relative to the first plate between a first posture and a second posture.
[0015] When the rotating shaft is in the first rotational position, the second plate and the second micro switch at least partially overlap along the rotation axis, such that when the rotating shaft is in the first translational position, the second micro switch is pressed and triggered by the second plate.
[0016] When the rotating shaft is in the second rotational position, the second plate and the second micro switch do not overlap along the rotational axis, while the first plate and the second micro switch at least partially overlap along the rotational axis, such that when the rotating shaft is in the second translational position, the second micro switch is pressed and triggered by the first plate.
[0017] Advantageously, during the rotation of the rotation axis in the second translation position from the second rotation position toward the first rotation position, the second plate can be externally blocked and rotate relative to the first plate in a direction opposite to the rotation direction of the rotation axis, so that the second plate moves from the first posture to the second posture. After the rotation axis rotates to the first rotation position and returns to the initial position, the second plate rotates relative to the first plate back to the first posture under the action of its reset member.
[0018] Advantageously, the rotating shaft has a first protrusion and a second protrusion, which are arranged in a longitudinal direction parallel to the axis of rotation, and the dimension of the first protrusion perpendicular to the longitudinal direction is smaller than the dimension of the second protrusion perpendicular to the longitudinal direction.
[0019] This disclosure also provides a transmission system, including:
[0020] In the rotating shaft structure described above, the rotating shaft is the driving element;
[0021] The driven member is rotatably mounted on the housing, and the driving member is operably connected to the driven member so that when the driving member moves, it can drive the driven member to move.
[0022] This disclosure also provides an operating mechanism for a switchgear, the operating mechanism being mounted on the switchgear, characterized in that the operating mechanism comprises:
[0023] The transmission system as described above;
[0024] The operating handle is fixedly installed on the driving component and can rotate between the closed and open positions, indicating the closed and open positions.
[0025] The driven element is operably connected to the driving element on one hand and to the switching device on the other.
[0026] The first rotational position of the active component corresponds to the closed state of the switchgear, and the second rotational position of the active component corresponds to the open state of the switchgear.
[0027] Advantageously, the driven member has a first groove and a second groove communicating with each other, the first groove being located on a first end side and the second groove being located on a second end side, the first groove being sized to accommodate a first protrusion but not a second protrusion, and the second groove being sized to accommodate a second protrusion.
[0028] At the first rotational position of the driving component, when the driving component translates to the first translational position, the first protrusion inserts into the second groove.
[0029] In the second rotational position of the active member, when the active member translates to the second translational position, the second protrusion is inserted into the second groove.
[0030] Advantageously, the first micro switch, the second micro switch and the third micro switch are all electrically connected to the electronic controller of the switching device.
[0031] This disclosure further provides a switchgear assembly, including a switchgear and an operating mechanism as described above, the operating mechanism being mounted to the switchgear. Attached Figure Description
[0032] The above and other features and advantages of exemplary embodiments of this disclosure will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, which are for illustrative purposes only and are not intended to limit the scope of this disclosure in any way, wherein:
[0033] Figure 1 A schematic diagram of a switchgear assembly according to the present disclosure is shown.
[0034] Figure 2 Show Figure 1The enlarged view of detail A shows the rotating shaft structure, with the rotating shaft in its first rotating position and initial position, and the switching device in the closed state.
[0035] Figure 3 The diagram shows a schematic of the first protrusion inserted into the first groove after the rotating shaft is translated from its initial position to the first translational position while the rotating shaft is still in the first rotating position during the switching of the switching equipment from the closed state to the open state.
[0036] In the second rotational position of the active member, when the active member translates to the second translational position, the second protrusion is inserted into the second groove.
[0037] Figure 4 The diagram illustrates the process of rotating the shaft from a first rotational position to a second rotational position during the switching of the switchgear from a closed state to an open state, at which point the shaft has not yet rotated to the second rotational position.
[0038] Figure 5 The diagram illustrates the switching equipment in the open state during the switching process from the closed position to the open position, where the rotating shaft is rotated to the second rotation position and then moved back from the first translation position to the initial position.
[0039] Figure 6 The diagram shows a process during which the switching equipment switches from the open state to the closed state, and the rotating shaft is still in the second rotating position, after which the rotating shaft is translated from the initial position to the second translational position, at which point the second protrusion is inserted into the second groove.
[0040] Figure 7 A perspective view of the axis of rotation is shown.
[0041] Figure 8 A perspective view of the driven member is shown. Detailed Implementation
[0042] To make the objectives, technical solutions, and advantages of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.
[0043] Compared to the embodiments shown in the accompanying drawings, feasible embodiments within the scope of this disclosure may have fewer components, other components not shown in the drawings, different components, components arranged differently, or components with different connections, etc. Furthermore, two or more components in the drawings may be implemented in a single component, or a single component shown in the drawings may be implemented as multiple separate components.
[0044] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure pertains. The terms “first,” “second,” and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Where the number of components is not specified, the number of components may be one or more; similarly, terms such as “a,” “the,” and “described” do not necessarily indicate a quantity limitation. Terms such as “comprising” or “including” mean that the element or object preceding the word encompasses the element or object listed following the word and its equivalents, without excluding other elements or objects. Terms such as “upper,” “lower,” “left,” and “right” are used only to indicate relative orientations when the equipment is in use or as shown in the accompanying drawings; these relative orientations may change accordingly when the absolute position of the described object changes.
[0045] Figure 1 A schematic diagram of a switchgear assembly according to this disclosure is shown, including an operating mechanism and a switchgear. The switchgear can be any type of switch. The operating mechanism is mounted to the switchgear for operating the switchgear to switch between a closed state and an open state.
[0046] The operating mechanism includes a transmission system and an operating handle. The transmission system includes a rotating shaft structure 1 and a driven member 2. The driven member can rotate under the drive of the rotating shaft structure, which is described in detail below.
[0047] The structure of the rotating shaft is described below. For example... Figure 2 As shown, the rotating shaft structure 1 includes a rotating shaft 11, also referred to as the driving element. The rotating shaft 11 is rotatably mounted on the housing 12, and can be positioned in a first rotational position (e.g., Figure 2 (as shown) and second rotation position (as shown) Figure 5 (as shown). In addition to rotational motion, the rotation axis 11 is also configured to rotate from its initial position (as shown) in the direction along its axis of rotation. Figure 2 As shown) towards the first translation position (e.g. Figure 3 (as shown) and the second translation position (as shown) Figure 6As shown, the axis of rotation is translated inward, with the first translation position located between the initial position and the second translation position. In other words, the distance from the initial position to the first translation position is less than the distance from the initial position to the second translation position.
[0048] The rotating shaft structure also includes a first micro switch 13 (also called a closing micro switch when used in switching equipment), which is fixedly mounted on the housing 12. The first micro switch 13 is positioned so that it can be triggered by a part of the rotating shaft 11 when the rotating shaft 11 is in a first rotating position.
[0049] The second micro switch 14 is fixedly mounted on the housing. The second micro switch 14 is positioned such that it is triggered by the first part of the rotating shaft when the rotating shaft 11 is in the first translational position, and is triggered by the second part of the rotating shaft, which is different from the first part, when the rotating shaft is in the second translational position.
[0050] Similar to the first micro switch, the third micro switch 15 (also referred to as the tripping micro switch when used in switching equipment) is fixedly mounted on the housing 12. The third micro switch 15 is positioned so that it can be triggered by pressing another part of the rotating shaft when the rotating shaft 11 is in the second rotating position.
[0051] like Figure 2 As shown, the rotating shaft is in the initial position and the first rotation position. When the rotating shaft structure is used for switching equipment, the switching equipment is in the closed state. Figure 3 The diagram shows the rotating shaft translating from its initial position to a first translational position, but still remaining in the first rotational position. At this point, a portion of the rotating shaft presses against the second microswitch 14, thereby triggering the second microswitch.
[0052] In this example, the rotating shaft structure includes a first plate 111 fixedly mounted to the rotating shaft 11 and extending perpendicular to the axis of rotation; and a second plate 112 rotatably mounted to the rotating shaft, extending parallel to the first plate 111, positioned closer to the second microswitch 14 than the first plate, and configured to rotate relative to the first plate between a first posture and a second posture. Figure 3 As shown, the second plate 112 of the rotating shaft 11 presses against the second micro switch 14. That is, when the rotating shaft 11 is in the first rotational position, the second plate 112 and the second micro switch 14 at least partially overlap along the rotation axis, such that when the rotating shaft is in the first translational position, the second micro switch is pressed and triggered by the second plate. Then, the rotating shaft 11 rotates from the first rotational position toward the second rotational position, as... Figure 4 As shown, at this time, the rotating shaft 11 rotates to a position between the first and second rotation positions, and the rotating shaft 11 disengages from the first micro switch 13. As the rotating shaft 11 continues to rotate, as... Figure 5As shown, the rotating shaft 11 rotates to the second rotational position and then moves back to the initial position from the first translational position. At this time, the rotating shaft 11 presses against the third micro switch 15. In the case of a switching device, the switching device is in the open state at this time.
[0053] Figure 6 The diagram shows the rotating shaft 11 translating from its initial position to a second translational position, but still within the second rotational position. At this point, the first plate 111 of the rotating shaft 11 presses against the second micro switch, thereby triggering the second micro switch. That is, when the rotating shaft 11 is in the second rotational position, the second plate and the second micro switch do not overlap along the rotational axis, while the first plate and the second micro switch at least partially overlap along the rotational axis, such that when the rotating shaft is in the second translational position, the second micro switch is pressed by the first plate and triggered.
[0054] The process of rotating shaft 11 from the second rotation position toward the first rotation position is similar to the process from the first rotation position toward the second rotation position, and will not be described again here.
[0055] During the rotation of the rotation axis from the second rotation position toward the first rotation position while the rotation axis is in the second translation position, the second plate 112 can be blocked by an external obstruction (e.g., a blocking member provided on the housing) and rotate relative to the first plate 111 in the opposite direction to the rotation direction of the rotation axis, so that the second plate moves from the first posture to the second posture. After the rotation axis rotates to the first rotation position and returns to the initial position, the second plate rotates back to the first posture relative to the first plate under the action of its reset member (e.g., a spring, not shown).
[0056] During the rotation of the rotation axis in the first translation position from the first rotation position to the second rotation position, the second plate 112 is not obstructed, thereby maintaining the first posture relative to the first plate.
[0057] In order to define the first translational position and the second translational position of the rotating shaft 11, the rotating shaft structure of this disclosure further includes a first blocking member 121 and a second blocking member 122 fixedly mounted on the housing 12. The second blocking member 122 is positioned further inward than the first blocking member 121. The rotating shaft has a first mating member 113 and a second mating member 114. The second mating member 114 is positioned further inward than the first mating member 113.
[0058] When the rotating shaft is in the first rotational position, the first blocking member 121 and the first mating member 113 at least partially overlap along the rotation axis, such that when the rotating shaft is translated to the first translational position, as Figure 3 As shown, the first blocking member abuts against the first mating member, thereby limiting the first translational position.
[0059] When the rotating shaft is in the second rotational position, the first blocking member 121 and the first mating member 113 do not overlap along the rotation axis, while the second blocking member 122 and the second mating member 114 at least partially overlap along the rotation axis, such that when the rotating shaft is translated to the second translational position, as Figure 6 As shown, the second blocking member abuts against the second mating member, thereby limiting the second translational position.
[0060] like Figure 7 As shown, the rotating shaft also has a first protrusion 115 and a second protrusion 116, which are arranged in a longitudinal direction parallel to the axis of rotation. The dimension of the first protrusion 115 perpendicular to the longitudinal direction is smaller than the dimension of the second protrusion 116 perpendicular to the longitudinal direction.
[0061] As previously described, this disclosure also provides a transmission system including a rotating shaft structure, wherein the rotating shaft of the rotating shaft structure is the driving member. The driven member 2 is rotatably disposed on the housing 12, and the driving member is operatively connected to the driven member so that the driven member can be driven to move when the driving member moves.
[0062] This drive system can be applied to switchgear as part of its operating mechanism. In addition to the drive system, the operating mechanism includes an operating handle (not shown), fixedly mounted to the driving member, capable of rotating between the closed and open positions, and indicating the closed and open positions. The driven member is operably connected to both the driving member and the switchgear; a first rotational position of the driving member corresponds to the closed state of the switchgear, and a second rotational position corresponds to the open state of the switchgear.
[0063] In the operating mechanism for the switching device, the driven member 2 further has a first groove 21 and a second groove 22 that communicate with each other. The first groove 21 is located on a first end side, and the second groove 22 is located on a second end side. The first groove is sized to accommodate a first protrusion 115 but not a second protrusion 116, and the second groove 22 is sized to accommodate a second protrusion 116. Thus, in the first rotational position of the driving member, when the driving member translates to the first translational position, the first protrusion is inserted into the second groove. In the second rotational position of the driving member, when the driving member translates to the second translational position, the second protrusion is inserted into the second groove.
[0064] In particular, the operating mechanism of this disclosure is a two-way operating mechanism, meaning it can be manually operated by actuating the operating handle to perform opening and closing operations on the switchgear, or it can be operated through the internal operating mechanism of the switchgear itself. In the latter case, the rotating shaft structure and driven member structure of this disclosure are particularly advantageous for achieving the function of free tripping, ensuring that the rotating shaft does not hinder the rotation of the driven member under the drive of the internal operating mechanism of the switchgear itself.
[0065] In the operating mechanism of the switchgear, a first microswitch, a second microswitch, and a third microswitch are all electrically connected to the electronic controller of the switchgear. When the first microswitch and the second microswitch are triggered simultaneously, they send a closing signal to the electronic controller of the switchgear. When the second microswitch and the third microswitch are triggered simultaneously, they send a opening signal to the electronic controller of the switchgear.
[0066] Thus, the electronic controller of the switchgear will only issue a closing signal when both the first and second microswitches are triggered simultaneously, preventing accidental activation that could trigger either the first or second microswitch and trigger a closing signal. Similarly, the electronic controller will only issue a opening signal when both the third and second microswitches are triggered simultaneously, preventing accidental activation that could trigger either the third or second microswitch and trigger a opening signal.
[0067] This disclosure uses a switching device as an example for illustration, but those skilled in the art should understand that the rotating shaft structure of this disclosure is not limited to this and can also be applied to other scenarios that require "dual determination" of microswitches.
[0068] Although this disclosure has been described in the specification and illustrated in the accompanying drawings with reference to various embodiments, those skilled in the art will understand that the above embodiments are merely preferred embodiments, and some technical features in the embodiments may not be necessary for solving specific technical problems, so these technical features may be omitted or omitted without affecting the solution of the technical problem or the formation of the technical solution; moreover, the features, elements and / or functions of one embodiment may be appropriately combined, combined or coordinated with the features, elements and / or functions of one or more other embodiments, unless such combination, combination or coordination is obviously not feasible.
Claims
1. A rotating shaft structure (1), characterized in that, The rotating shaft structure (1) includes: A rotating shaft (11), rotatably mounted on the housing (12), is capable of rotating between a first rotating position and a second rotating position. The rotating shaft (11) is also configured to translate inwardly from an initial position toward a first translational position and a second translational position along its axis of rotation, the first translational position being located between the initial position and the second translational position. In the first rotational position, the rotation axis (11) is configured to be able to translate only from the initial position to the first translational position, and in the second rotational position, the rotation axis (11) is configured to be able to translate from the initial position to the second translational position; The first micro switch (13) is fixedly mounted on the housing. The first micro switch is positioned so that it can be triggered by a part of the rotating shaft when the rotating shaft is in the first rotating position. The second micro switch (14) is fixedly mounted on the housing. The second micro switch is positioned such that it is triggered by the first part of the rotating shaft structure when the rotating shaft is in the first translational position, and triggered by the second part of the rotating shaft structure, which is different from the first part, when the rotating shaft is in the second translational position. The third micro switch (15) is fixedly mounted on the housing. The third micro switch is positioned so that it can be triggered by pressing another part of the rotating shaft when the rotating shaft is in the second rotating position.
2. The rotating shaft structure as described in claim 1, characterized in that, The rotating shaft structure (1) also includes a first blocking member (121) and a second blocking member (122) fixedly mounted on the housing. The second blocking member is positioned further inward than the first blocking member. The rotating shaft (11) has a first mating member (113) and a second mating member (114). The second mating member is positioned further inward than the first mating member. When the rotating shaft is in the first rotational position, the first blocking member (121) and the first mating member (113) at least partially overlap along the rotation axis, such that when the rotating shaft is translated to the first translational position, the first blocking member abuts against the first mating member. When the rotating shaft is in the second rotation position, the first blocking member and the first mating member do not overlap along the rotation axis, and the second blocking member (122) and the second mating member (114) overlap at least partially along the rotation axis, such that when the rotating shaft is translated to the second translation position, the second blocking member abuts against the second mating member.
3. The rotating shaft structure as described in claim 1, characterized in that, The rotating shaft structure has: The first plate (111) is fixed to the rotation axis and extends perpendicular to the rotation axis; The second plate (112), rotatably mounted to the rotation axis, extends parallel to the first plate, and is positioned closer to the second microswitch than the first plate. The second plate is configured to rotate relative to the first plate between a first posture and a second posture. When the rotating shaft is in the first rotational position, the second plate and the second micro switch at least partially overlap along the rotation axis, such that when the rotating shaft is in the first translational position, the second micro switch is pressed and triggered by the second plate. When the rotating shaft is in the second rotational position, the second plate and the second micro switch do not overlap along the rotational axis, while the first plate and the second micro switch at least partially overlap along the rotational axis, such that when the rotating shaft is in the second translational position, the second micro switch is pressed and triggered by the first plate.
4. The rotating shaft structure as described in claim 3, characterized in that, During the rotation of the rotation axis from the second rotation position toward the first rotation position while in the second translation position, the second plate can be blocked by an external force and rotate relative to the first plate in the opposite direction to the rotation direction of the rotation axis, so that the second plate moves from the first posture to the second posture. After the rotation axis rotates to the first rotation position and returns to the initial position, the second plate rotates back to the first posture relative to the first plate under the action of its reset member.
5. The rotating shaft structure as described in claim 1, characterized in that, The rotating shaft has a first protrusion (115) and a second protrusion (116), which are arranged in a longitudinal direction parallel to the axis of rotation. The dimension of the first protrusion perpendicular to the longitudinal direction is smaller than that of the second protrusion perpendicular to the longitudinal direction.
6. A transmission system, comprising: The rotating shaft structure (1) as described in any one of claims 1 to 5, wherein the rotating shaft of the rotating shaft structure is the driving member; The driven member (2) is rotatably mounted on the housing, and the driving member is operably connected to the driven member so that when the driving member moves, it can drive the driven member to move.
7. An operating mechanism for a switchgear, the operating mechanism being mounted on the switchgear, characterized in that, The operating mechanism includes: The transmission system as described in claim 6; The operating handle is fixedly installed on the driving component and can rotate between the closed and open positions, indicating the closed and open positions. The driven element is operably connected to the driving element on one hand and to the switching device on the other. The first rotational position of the active component corresponds to the closed state of the switchgear, and the second rotational position of the active component corresponds to the open state of the switchgear.
8. The operating mechanism as described in claim 7, characterized in that, The driven member has a first groove (21) and a second groove (22) that communicate with each other. The first groove is located on a first end side, and the second groove is located on a second end side. The first groove is sized to accommodate a first protrusion but not a second protrusion, and the second groove is sized to accommodate a second protrusion. At the first rotational position of the driving component, when the driving component translates to the first translational position, the first protrusion inserts into the second groove. In the second rotational position of the active member, when the active member translates to the second translational position, the second protrusion is inserted into the second groove.
9. The operating mechanism as described in claim 8, characterized in that, The first micro switch (13), the second micro switch (14) and the third micro switch (15) are all electrically connected to the electronic controller of the switching device.
10. A switchgear assembly, characterized in that, The switchgear assembly includes a switchgear and an operating mechanism as described in any one of claims 7 to 9, the operating mechanism being mounted to the switchgear.