Isolation switch mechanism with handle limiting function and switch device
By introducing a handle limit structure in the disconnector mechanism, the problem of inadequate closing and opening operations is solved, ensuring normal circuit operation and preventing misoperation.
Patent Information
- Application Number
- CN202422787367.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-15
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-11-15
AI Technical Summary
In the prior art, the closing and opening operations of the isolating switch are prone to failure, which affects the normal operation of the circuit.
An isolating switch mechanism with handle limit is designed. By setting a ring groove and a limit part on the operating handle, it is ensured that the operating handle can only be removed after closing, opening or grounding. The anti-mistake function is realized by using the limit structure of the locking part and the rotating shaft.
It effectively prevents improper operation, ensures the normal operation of the circuit, and makes it easier for the operator to judge whether the operation is in place to avoid misoperation.
Smart Images
Figure CN223390430U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of isolating switch mechanisms, in particular to an isolating switch mechanism with a handle limiter and a switch device. Background Art
[0002] With the widespread use of electricity today, circuits are often connected to safety circuits using isolating switches with handle limits to perform closing, opening, and grounding operations. When closed, the circuit is conducting; when open, the circuit is disconnected; and when grounded, the circuit is grounded.
[0003] However, in the prior art, the closing and opening operations are often not performed properly, which may affect the normal operation of the circuit. Utility Model Content
[0004] The technical problem solved by the utility model is how to improve the technical problem in the prior art that improper operation easily affects the normal operation of the circuit.
[0005] The embodiment of the present utility model can be implemented as follows:
[0006] The utility model provides an isolating switch mechanism with handle limit, comprising:
[0007] Bearing body;
[0008] a first operating shaft rotatably disposed on the carrying body;
[0009] an output shaft, drivingly connected to the first operating shaft and used to execute closing and opening of the circuit breaker;
[0010] a transition shaft rotatably connected to the first operating shaft and capable of freely rotating relative to the first operating shaft; the transition shaft is drivingly connected to the output shaft;
[0011] a first operating handle, adapted to be detachably connected to the first operating shaft and configured to rotate the first operating shaft to a first position to close the circuit breaker, and to rotate the first operating shaft to a second position to open the circuit breaker; a first annular groove being defined on the first operating handle;
[0012] The handle limit assembly includes a rotating shaft and a locking member. The rotating shaft is rotatably connected to the carrying body and is in driving connection with the transition shaft. The locking member is provided on the rotating shaft and can rotate with the rotating shaft. The radial outer periphery of the locking member is provided with a first limit portion and a first avoidance groove and a second avoidance groove located on both sides of the first limit portion.
[0013] Wherein, when the first operating shaft rotates to a state between the first state and the second state, the first limiting portion is screwed into the first annular groove; when the first operating shaft is in the first state, the first operating handle corresponds to the first avoidance groove to avoid the first operating handle being removed; when the first operating shaft is in the second state, the first operating handle corresponds to the second avoidance groove to avoid the first operating handle being removed.
[0014] The advantages of the isolating switch mechanism with handle limit provided by the present invention over the prior art include:
[0015] In this disconnect switch mechanism with handle limiters, during a closing operation, a first operating handle is mounted on a first operating shaft. Rotating the first operating handle drives the first operating shaft to rotate, which in turn drives the output shaft to rotate to achieve closing and opening. Simultaneously, the output shaft rotates the transition shaft, which in turn drives the rotation shaft via the transition shaft, which in turn drives the locking member to rotate. During rotation of the first operating shaft from the second state to the first state, the first limiter screws into the first annular groove, preventing the first operating handle from being removed from the first operating shaft. This means that the first operating handle cannot be removed until the closing position is achieved. Only after the first operating shaft rotates to the first state and achieves the closing position does the first avoidance groove align with the first operating handle, preventing removal of the first operating handle. Similarly, only after the first operating shaft rotates from the first state to the second state and achieves the opening position does the second avoidance groove align with the first operating handle, preventing removal of the first operating handle. Based on this, in the isolating switch mechanism with handle limit, the first operating handle can only be removed when the switch is in the closed or opened position. On the one hand, this makes it easier for the operator to determine whether the operation is in place, and on the other hand, it also provides a foolproof function to avoid the situation where the first operating handle is removed when the operation is not in place. Based on this, the isolating switch mechanism with handle limit provided by the utility model can improve the technical problem in the prior art that improper operation can easily affect the normal operation of the circuit.
[0016] Optionally, the isolating switch mechanism with handle limit further includes a second operating shaft and a second operating handle, the second operating shaft being rotatably disposed on the carrying body and spaced apart from the first operating shaft, the second operating handle being configured to be detachably connected to the second operating shaft and configured to drive the second operating shaft to rotate to a third state to achieve grounding; a second annular groove is formed on the second operating handle;
[0017] A second limiting portion is also provided on the radial outer periphery of the locking member, and the second limiting portion and the first limiting portion are respectively located on both sides of the first avoidance groove; the second limiting portion is used to screw into the second annular groove during the process of the second operating shaft rotating to the third state, and when the second operating shaft rotates to the third state, the first avoidance groove corresponds to the second operating handle to avoid the second operating handle from being removed.
[0018] Optionally, the diameter of the circular path where the inner wall of the first avoidance groove is located is greater than the diameter of the first operating handle.
[0019] Optionally, the handle limiting assembly further includes a positioning member, wherein the positioning member is connected to the rotating shaft to rotate along with the rotating shaft;
[0020] When the first operating shaft rotates to the second state, the positioning member abuts against the outer periphery of the first operating handle.
[0021] Optionally, the handle limiting assembly further includes a gasket, which is arranged between the positioning member and the locking member.
[0022] Optionally, the locking member, the positioning member and the gasket are all in sheet shape, the area of the gasket is smaller than the area of the positioning member, and the area of the gasket is smaller than the area of the locking member.
[0023] Optionally, an eccentric first through hole is provided on the locking member, and a second through hole is provided on the positioning member, and the first through hole and the second through hole are coaxially arranged.
[0024] Optionally, the rotating shaft and the transition shaft are connected via gear transmission.
[0025] A switch device comprises the above-mentioned isolating switch mechanism with handle limit.
[0026] The switch device provided by the present invention adopts the above-mentioned isolating switch mechanism with handle limit. The beneficial effects of the switch device relative to the prior art are the same as the beneficial effects of the above-mentioned isolating switch mechanism with handle limit relative to the prior art, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.
[0028] Figure 1This is a structural schematic diagram of an isolating switch mechanism with handle limit provided in an embodiment of the present application;
[0029] Figure 2 This is a schematic structural diagram of the first operating handle provided in an embodiment of the present application;
[0030] Figure 3 This is a schematic structural diagram of a handle locking assembly provided in an embodiment of the present application;
[0031] Figure 4 This is a schematic diagram of the partial structure of the handle locking assembly provided in an embodiment of the present application.
[0032] Icon: Isolating switch mechanism 10 with handle limit, carrying body 100, first operating shaft 200, output shaft 300, first operating handle 500, first annular groove 510, handle limit assembly 600, locking member 610, first limit portion 611, first avoidance groove 612, second avoidance groove 613, second limit portion 614, first through hole 615, rotating shaft 620, positioning member 630, second through hole 631, gasket 640, second operating shaft 700. DETAILED DESCRIPTION
[0033] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.
[0034] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.
[0035] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.
[0036] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the utility model product is usually placed when in use. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.
[0037] In addition, the terms "first", "second", etc., if used, are merely used to distinguish and describe, and should not be understood as indicating or implying relative importance.
[0038] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention can be combined with each other.
[0039] See also Figure 1-Figure 4 In an embodiment of the present application, an isolating switch mechanism 10 with a handle limit and a switch device using the isolating switch mechanism 10 with a handle limit are provided. The isolating switch mechanism 10 with a handle limit and the switch device can be applied to an isolating switch, and the isolating switch can be applied to a circuit. The isolating switch mechanism 10 with a handle limit can operate the isolating switch so that the isolating switch can perform functions such as closing, opening, and grounding. When the isolating switch mechanism 10 with a handle limit and the switch device close the circuit, the circuit is connected; when opening the circuit, the circuit is disconnected; and when grounding the circuit, the circuit is grounded. The isolating switch mechanism 10 with a handle limit and the switch device provided in this embodiment can improve the technical problem in the prior art where improper operation easily affects the normal operation of the circuit.
[0040] In this embodiment, the disconnector mechanism 10 with handle limit includes a carrier body 100, a first operating shaft 200, an output shaft 300, a transition shaft, a first operating handle 500, and a handle limit assembly 600. The first operating shaft 200 is rotatably mounted on the carrier body 100. The output shaft 300 is in transmission connection with the first operating shaft 200 and is used to perform closing and opening operations. The transition shaft is rotatably connected to the first operating shaft 200 and can rotate freely relative to the first operating shaft 200; the transition shaft is in transmission connection with the output shaft 300. The first operating handle 500 is used for detachable connection with the first operating shaft 200, and is used to drive the first operating shaft 200 to rotate to a first state to achieve closing, and is also used to drive the first operating shaft 200 to rotate to a second state to achieve opening. That is, when closing or opening the circuit breaker is required, the first operating handle 500 can be installed on the first operating shaft 200, and then the first operating handle 500 can be operated to drive the first operating shaft 200 to rotate, thereby driving the output shaft 300 through the first operating shaft 200 to achieve closing, opening, and grounding. The first operating handle 500 is provided with a first annular groove 510. In addition, the handle limit assembly 600 includes a rotating shaft 620 and a locking member 610. The rotating shaft 620 is rotatably connected to the carrier body 100 and is in transmission connection with the transition shaft. The locking member 610 is provided on the rotating shaft 620 and can rotate with the rotating shaft 620. The radial outer periphery of the locking member 610 is provided with a first limiting portion 611 and a first avoidance groove 612 and a second avoidance groove 613 located on both sides of the first limiting portion 611. Among them, when the first operating shaft 200 rotates to a state between the first state and the second state, the first limit portion 611 is screwed into the first annular groove 510; when the first operating shaft 200 is in the first state, the first operating handle 500 corresponds to the first avoidance groove 612 to avoid the first operating handle 500 from being removed; when the first operating shaft 200 is in the second state, the first operating handle 500 corresponds to the second avoidance groove 613 to avoid the first operating handle 500 from being removed.
[0041] As described above, in the disconnector mechanism 10 with handle limiters, during the closing operation, the first operating handle 500 is mounted on the first operating shaft 200. Rotating the first operating handle 500 drives the first operating shaft 200 to rotate, which in turn drives the output shaft 300 to rotate, thereby achieving closing and opening. Rotation of the output shaft 300 simultaneously drives the transition shaft to rotate, which in turn drives the rotating shaft 620 to rotate, and the rotating shaft 620 in turn drives the locking member 610 to rotate. During the process of the first operating shaft 200 rotating from the second state to the first state, the first limiting portion 611 is screwed into the first annular groove 510, so that the first operating handle 500 cannot be removed from the first operating shaft 200. In other words, the first operating handle 500 cannot be pulled out before the closing position is achieved. Only when the first operating shaft 200 rotates to the first state and the closing position is achieved, the first avoidance groove 612 is aligned with the first operating handle 500 to prevent the first operating handle 500 from being removed. Similarly, only after the first operating shaft 200 rotates from the first state to the second state and the opening position is achieved, the second avoidance groove 613 is aligned with the first operating handle 500 to prevent the first operating handle 500 from being removed. Based on this, in the disconnector mechanism 10 with handle limiting, the first operating handle 500 can be removed only when the closing position or the opening position is achieved. This not only makes it easier for the operator to determine whether the operation is in place, but also provides a foolproof function to prevent the first operating handle 500 from being removed due to improper operation. Based on this, the isolating switch mechanism 10 with handle limit provided by the present invention can improve the technical problem in the prior art that improper operation may affect the normal operation of the circuit.
[0042] Furthermore, in this embodiment, the disconnector mechanism 10 with handle limit further includes a second operating shaft 700 and a second operating handle. The second operating shaft 700 is rotatably disposed on the carrier body 100 and spaced apart from the first operating shaft 200. The second operating handle is configured to be detachably connected to the second operating shaft 700 and configured to drive the second operating shaft 700 to rotate to a third position for grounding. A second annular groove is defined on the second operating handle. A second limiting portion 614 is further disposed on the radial outer periphery of the locking member 610. The second limiting portion 614 and the first limiting portion 611 are respectively located on either side of the first avoidance groove 612. The second limiting portion 614 is configured to rotate into the second annular groove during rotation of the second operating shaft 700 to the third position. When the second operating shaft 700 rotates to the third position, the first avoidance groove 612 corresponds to the second operating handle to prevent the second operating handle from being removed.
[0043] Similarly, during the grounding operation of the second operating handle, if the second operating shaft 700 has not rotated to the third position, it indicates that the grounding is not in place. At this time, the second limit portion 614 is screwed into the second annular groove, making it impossible to remove the second operating handle. When the second operating shaft 700 rotates to the third position, indicating that the grounding is in place, the first avoidance groove 612 can be aligned with the second operating handle, and the second operating handle can be removed. This also serves to prevent mistakes and facilitates the operator to determine whether the grounding is in place.
[0044] It should be noted that, in some embodiments, the first operating handle 500 and the second operating handle can be the same operating handle. Based on this, when performing closing or opening, the grounding operation cannot be performed at the same time, which can play a fool-proof role and avoid operator errors.
[0045] In this embodiment, the diameter of the circular path defined by the inner wall of the first avoidance groove 612 is greater than the diameter of the first operating handle 500. Consequently, when the first operating shaft 200 rotates to the first position, achieving full closing, a certain gap is created between the inner wall of the first avoidance groove 612 and the outer side of the first operating handle 500, facilitating and reducing the difficulty of removing the first operating handle 500. Similarly, the diameter of the circular path defined by the inner wall of the first avoidance groove 612 is also greater than the diameter of the second operating handle, facilitating its removal when the ground is in place.
[0046] Furthermore, to facilitate determining whether the switch is in the open position, in this embodiment, the handle limit assembly 600 further includes a position member 630, which is connected to the rotating shaft 620 so as to rotate with the rotating shaft 620. When the first operating shaft 200 rotates to the second state, the position member 630 abuts against the outer periphery of the first operating handle 500. In other words, during the switch opening operation, the operator can determine whether the switch opening operation is in place based on whether the position member 630 abuts against the first operating handle 500. When the position member 630 abuts against the first operating handle 500, it indicates that the second avoidance groove 613 corresponds to the second operating handle and the switch is in the open position, at which point the first operating handle 500 can be directly removed. If the position member 630 does not abut against the first operating handle 500, the first operating handle 500 can still rotate, and the first limit portion 611 remains in the first annular groove 510, which means that the first operating handle 500 cannot be removed, thus also serving as a foolproofing measure.
[0047] In addition, in this embodiment, the handle limit assembly 600 further includes a gasket 640, which is disposed between the positioning member 630 and the locking member 610. Generally, to facilitate the locking member 610 to be inserted into the first annular groove 510 and the second annular groove, the width of the first annular groove 510 and the width of the second annular groove are slightly larger than the thickness of the locking member 610. In this case, the provision of the gasket 640 ensures a certain distance between the locking member 610 and the positioning member 630, preventing the positioning member 630 from being inserted into the first annular groove 510 or the second annular groove during rotation, thereby preventing the brake from being held in place.
[0048] Furthermore, the locking member 610, the positioning member 630, and the gasket 640 are all in the form of sheets, and the area of the gasket 640 is smaller than that of the positioning member 630, and the area of the gasket 640 is also smaller than that of the locking member 610. Thus, the locking member 610 and the positioning member 630 can completely cover the gasket 640, preventing the gasket 640 from being stuck in the first annular groove 510 or the second annular groove, and also preventing the gasket 640 from abutting against the first operating handle 500.
[0049] In this embodiment, the locking member 610 has an eccentric first through-hole, and the positioning member 630 has a second through-hole. The first through-hole and the second through-hole are coaxially arranged. The coaxial arrangement of the first through-hole and the second through-hole facilitates the insertion of a disassembly tool, thereby facilitating the disassembly of the handle locking assembly.
[0050] In this embodiment, the rotating shaft 620 is connected to the transition shaft through gear transmission.
[0051] In summary, in the disconnector mechanism 10 and switch device with handle limiter provided in this embodiment, during the closing operation, the first operating handle 500 is mounted on the first operating shaft 200. Rotating the first operating handle 500 drives the first operating shaft 200 to rotate, which in turn drives the output shaft 300 to rotate, thereby achieving closing and opening. Rotation of the output shaft 300 simultaneously drives the transition shaft to rotate, thereby driving the rotation shaft 620 via the transition shaft, which in turn drives the locking member 610 to rotate. During the process of the first operating shaft 200 rotating from the second state to the first state, the first limiting portion 611 is screwed into the first annular groove 510, so that the first operating handle 500 cannot be removed from the first operating shaft 200. In other words, the first operating handle 500 cannot be pulled out before the closing position is achieved. Only when the first operating shaft 200 rotates to the first state and the closing position is achieved, the first avoidance groove 612 is aligned with the first operating handle 500 to prevent the first operating handle 500 from being removed. Similarly, only after the first operating shaft 200 rotates from the first state to the second state and the opening position is achieved, the second avoidance groove 613 is aligned with the first operating handle 500 to prevent the first operating handle 500 from being removed. Based on this, in the disconnector mechanism 10 with handle limiting, the first operating handle 500 can be removed only when the closing position or the opening position is achieved. This not only makes it easier for the operator to determine whether the operation is in place, but also provides a foolproof function to prevent the first operating handle 500 from being removed due to improper operation. Based on this, the isolating switch mechanism 10 with handle limit provided by the present invention can alleviate the technical problem in the prior art of easily misoperating and affecting the normal operation of the circuit. Similarly, during the grounding operation of the second operating handle, if the second operating shaft 700 has not rotated to the third state, it indicates that the grounding is not in place. At this time, the second limiter 614 is screwed into the second annular groove, making it impossible to remove the second operating handle. When the second operating shaft 700 rotates to the third state, indicating that the grounding is in place, the first avoidance groove 612 can be aligned with the second operating handle, and the second operating handle can be removed. This also serves to prevent mistakes and facilitates the operator to determine whether the grounding is in place.
[0052] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.
Claims
1. An isolating switch mechanism with handle limit, characterized in that: include: A carrier body (100); A first operating shaft (200) is rotatably disposed on the carrying body (100); An output shaft (300) is transmission-connected to the first operating shaft (200) and is used to perform closing and opening operations; a transition shaft rotatably connected to the first operating shaft (200) and capable of freely rotating relative to the first operating shaft (200); the transition shaft is in transmission connection with the output shaft (300); A first operating handle (500) is used for being detachably connected to the first operating shaft (200), and is used to drive the first operating shaft (200) to rotate to a first state to achieve closing, and is also used to drive the first operating shaft (200) to rotate to a second state to achieve opening; a first annular groove (510) is provided on the first operating handle (500); A handle limiting assembly (600) comprises a rotating shaft (620) and a locking member (610), wherein the rotating shaft (620) is rotatably connected to the carrier body (100) and is in transmission connection with the transition shaft, and the locking member (610) is provided on the rotating shaft (620) and can rotate along with the rotating shaft (620); a first limiting portion (611) and a first avoidance groove (612) and a second avoidance groove (613) are provided on a radial outer periphery of the locking member (610); Wherein, when the first operating shaft (200) rotates to a state between the first state and the second state, the first limiting portion (611) is screwed into the first annular groove (510); when the first operating shaft (200) is in the first state, the first operating handle (500) corresponds to the first avoidance groove (612) to avoid the first operating handle (500) being removed; when the first operating shaft (200) is in the second state, the first operating handle (500) corresponds to the second avoidance groove (613) to avoid the first operating handle (500) being removed.
2. The isolating switch mechanism with handle limit according to claim 1, characterized in that: The isolating switch mechanism (10) with handle limit further comprises a second operating shaft (700) and a second operating handle, wherein the second operating shaft (700) is rotatably disposed on the bearing body (100) and is spaced apart from the first operating shaft (200), and the second operating handle is used for being detachably connected to the second operating shaft (700) and for driving the second operating shaft (700) to rotate to a third state to achieve grounding; a second annular groove is provided on the second operating handle; A second limiting portion (614) is further provided on the radial outer periphery of the locking member (610), and the second limiting portion (614) and the first limiting portion (611) are respectively located on both sides of the first avoidance groove (612); the second limiting portion (614) is used to be screwed into the second annular groove when the second operating shaft (700) rotates to the third state, and when the second operating shaft (700) rotates to the third state, the first avoidance groove (612) corresponds to the second operating handle to avoid the second operating handle from being removed.
3. The isolating switch mechanism with handle limit according to claim 1, characterized in that: The diameter of the circular path where the inner wall of the first avoidance groove (612) is located is greater than the diameter of the first operating handle (500).
4. The isolating switch mechanism with handle limit according to claim 1, characterized in that: The handle limiting assembly (600) further includes a positioning member (630), wherein the positioning member (630) is connected to the rotating shaft (620) to rotate along with the rotating shaft (620); When the first operating shaft (200) rotates to the second state, the positioning member (630) abuts against the outer periphery of the first operating handle (500).
5. The isolating switch mechanism with handle limit according to claim 4, characterized in that: The handle limiting assembly (600) further comprises a gasket (640), wherein the gasket (640) is arranged between the positioning member (630) and the locking member (610).
6. The isolating switch mechanism with handle limit according to claim 5, characterized in that: The locking member (610), the positioning member (630) and the gasket (640) are all in sheet form, the area of the gasket (640) is smaller than the area of the positioning member (630), and the area of the gasket (640) is smaller than the area of the locking member (610).
7. The isolating switch mechanism with handle limit according to claim 4, characterized in that: An eccentric first through hole is provided on the locking member (610), and a second through hole is provided on the positioning member (630), wherein the first through hole and the second through hole are coaxially arranged.
8. The isolating switch mechanism with handle limit according to claim 1, characterized in that: The rotating shaft (620) is connected to the transition shaft via gear transmission.
9. A switch device, characterized in that: It comprises an isolating switch mechanism (10) with handle limit according to any one of claims 1 to 8.