Isolation switch

Abstract

The utility model discloses an isolating switch, which relates to the technical field of low-voltage electric appliances and comprises a shell, a handle, a contact support and an indicator. And a through hole is formed in the shell. The handle is rotationally connected to the shell. The contact support is connected to the shell in a movable mode, the contact support is in transmission connection with the handle, and a first linkage part is arranged on the contact support. The indicating piece is rotationally connected to the shell and comprises a rotating part, a first arm and a second arm, the first arm and the second arm are arranged on the rotating part in a spaced mode, a second linkage part is arranged on the first arm, and a first indicating mark and a second indicating mark are arranged on the second arm. The first linkage part is connected with the second linkage part, so that the contact support can drive the indicating piece to rotate, and in the rotating process of the indicating piece, at least one of the first indicating mark and the second indicating mark corresponds to the through hole. According to the disconnecting switch provided by the invention, the state of the disconnecting switch can be visually displayed, and the safety and reliability of the disconnecting switch are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of low-voltage electrical apparatus, in particular to an isolating switch. BACKGROUND

[0002] The isolating switch is a kind of switch electrical apparatus with isolation function in the disconnected state and can bear short-circuit current for a short time, which is widely used in power system to ensure the safe maintenance and isolation of electrical equipment.

[0003] The isolating switch usually includes handle, contact support, static contact and contact bridge and other structures, the handle drives the contact support to move by rotating, and the contact bridge is in contact or separated from the static contact under the synchronous driving of the contact support to realize the opening and closing operation.

[0004] However, the existing isolating switch cannot intuitively display the working state in the use process, and misoperation or opening and closing out of position may occur, resulting in low safety and reliability of the isolating switch. CONTENT OF THE INVENTION

[0005] The purpose of the present application is to provide an isolating switch which can intuitively display the state of the isolating switch and improve the safety and reliability of the isolating switch.

[0006] The embodiment of the present application provides an isolating switch, which comprises a shell, a handle, a contact support and an indicating piece. The shell is provided with a through hole. The handle is rotationally connected to the shell. The contact support is movably connected to the shell and is in transmission connection with the handle. The contact support is provided with a first linkage part. The indicating piece is rotationally connected to the shell and comprises a rotating part and first and second arms which are arranged at intervals on the rotating part. The first arm is provided with a second linkage part, and the second arm is provided with first and second indicating marks. The first linkage part is connected with the second linkage part to enable the contact support to drive the indicating piece to rotate. At least one of the first and second indicating marks corresponds to the through hole in the rotating process of the indicating piece.

[0007] By arranging the indicating piece in the isolating switch and connecting the indicating piece with the contact support, the linkage of the indicating piece and the contact support is realized. In the closing or opening process of the isolating switch, the indicating piece can be driven to act by the action of the contact support. The first or second indicating mark on the indicating piece corresponds to the through hole on the shell, and then corresponds to the on-off state of the isolating switch, so that the operator can intuitively check the on-off state of the isolating switch from the through hole of the shell, reduce the risk of misoperation or operation out of position, and improve the use safety and reliability of the isolating switch.

[0008] In some examples, the first linkage part comprises a support rod and a linkage shaft arranged on the support rod, and the second linkage part comprises a through hole arranged on the first arm, the linkage shaft being arranged in the through hole, and at least a part of the linkage shaft being capable of abutting a hole wall of the through hole.

[0009] Through the above design, the linkage between the first linkage part and the second linkage part is more accurate and reliable, and the operation force can be effectively transmitted to ensure smooth switching of the disconnecting switch. The cooperation of the linkage shaft and the through hole not only improves the stability of the structure, but also reduces the wear during movement, prolonging the service life of the equipment.

[0010] In some examples, the through hole is configured as a waist-shaped hole, and the linkage shaft is capable of moving relative to the waist-shaped hole in the waist-shaped hole.

[0011] Through the above design, the cooperation of the waist-shaped hole and the linkage shaft not only improves the operation flexibility and reliability of the disconnecting switch, but also reduces the friction and wear during movement, prolonging the service life of the equipment. In addition, the design of the waist-shaped hole can simultaneously adapt to the linear sliding of the contact support and the rotation of the indicating member, facilitating smooth linkage between the two.

[0012] In some examples, the second arm is provided with an extension structure at an end away from the rotating part, the first indicating mark and the second indicating mark are arranged on the extension structure and located on a side of the extension structure facing the through hole.

[0013] The extension structure provides a suitable mounting position for the first indicating mark and the second indicating mark, so that they can exactly correspond to the position of the through hole, ensuring that the user can clearly observe the on-off state of the disconnecting switch from the outside of the shell. At the same time, the extension structure makes full use of the end space of the second arm, avoiding additional occupation of the internal space of the shell.

[0014] In some examples, the extension structure is configured as an extension plate, the first indicating mark and the second indicating mark are arranged on a side of the extension plate facing the through hole, and the first indicating mark and the second indicating mark are arranged at optional intervals.

[0015] The design of the extension plate provides a stable mounting platform for the first indicating mark and the second indicating mark, and the optional interval arrangement further optimizes the visibility and functionality of the indicating marks.

[0016] In some examples, the first indicating mark and the second indicating mark are used to provide visual differentiation, and the first indicating mark and the second indicating mark comprise at least one of a color mark, a pattern mark or a word mark.

[0017] Through the above design, the first and second indication marks can significantly improve the operation convenience and safety of the disconnecting switch. Users do not need to rely on complex operation manuals or additional detection tools, and can quickly judge the switch state through visual information, thereby reducing the risk of misoperation. In addition, the durability and clarity design of the marks ensures their reliability in long-term use.

[0018] In some examples, the extension plate is arranged in an arc shape, and the center of the arc-shaped extension plate is located on the axis of the rotating part.

[0019] The design of the arc-shaped extension plate not only optimizes the spatial layout of the structure, but also ensures that the first and second indication marks can maintain stable visibility during rotation, thereby improving the operation convenience and user experience of the disconnecting switch.

[0020] In some examples, the rotating part includes a shaft body and a rotating connection hole formed in the shaft body, and the shell is provided with a rotating mounting column, and the rotating connection hole is matched with the rotating mounting column.

[0021] The rotating part is connected to the shell in a rotating connection hole and rotating mounting column matching mode, which is simple in structure, can realize quick assembly of the indicating part on the shell, and can also realize stable rotation effect to ensure that the indicating part can rotate accurately and timely under the linkage of the contact support.

[0022] In some examples, the handle is provided with a first connecting part, the first connecting part is provided with a first connecting hole, the contact support is provided with a second connecting hole, and the disconnecting switch further includes a connecting rod, a first end of the connecting rod is connected to the first connecting hole, and a second end of the connecting rod is connected to the second connecting hole.

[0023] The transmission between the handle and the contact support through the connecting rod has the characteristics of simple structure, high transmission efficiency and convenient assembly, and the rotation angle of the handle can be adjusted by adjusting the length of the connecting rod, so that the handle of the disconnecting switch can be kept consistent with the rotation angle of the assembled circuit breaker handle under the premise of ensuring the normal on-off of the disconnecting switch, thereby improving the application range of the disconnecting switch and meeting various use scenarios.

[0024] In some examples, the shell is provided with an assembly boss, the assembly boss is provided with an assembly hole, the handle is provided with a second connecting part, the second connecting part is provided with a third connecting hole, and the disconnecting switch further includes a torsion spring, a first force arm of the torsion spring is connected to the assembly hole, and a second force arm of the torsion spring is connected to the third connecting hole.

[0025] By arranging the torsion spring between the shell and the handle, the rotation of the handle on the shell can be limited by the elastic force of the torsion spring itself, so that the handle can be kept fixed in position when rotated to the open position or the closed position. Only when the handle is correctly operated, a pushing force opposite to the elastic force and greater than the elastic force is applied to the handle to realize the on-off of the disconnector, effectively reducing the influence of accidental touch on the working state of the disconnector and improving the reliability of the disconnector. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. Other related drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0027] Figure 1 The internal structure diagram of the disconnector provided by the embodiments of the present application is shown.

[0028] Figure 2 The structure diagram of the disconnector provided by the embodiments of the present application in the open state is shown.

[0029] Figure 3 The structure diagram of the disconnector provided by the embodiments of the present application in the closed state is shown.

[0030] Figure 4 The diagram of the indicating member and the contact support linkage structure provided by the embodiments of the present application is shown.

[0031] Figure 5 The structure diagram of the indicating member provided by the embodiments of the present application is shown.

[0032] Figure 6 The exploded view of the disconnector provided by the embodiments of the present application is shown.

[0033] Explanation of reference signs:

[0034] 100, disconnector; 1, shell; 11, through hole; 12, static contact; 13, rotation mounting column; 14, assembly boss; 141, assembly hole; 15, torsion spring; 2, handle; 21, first connecting part; 211, first connecting hole; 22, second connecting part; 221, third connecting hole; 3, contact support; 31, first linkage part; 311, support rod; 312, linkage shaft; 32, contact bridge; 33, second connecting hole; 4, indicating member; 41, rotation part; 411, shaft body; 412, rotation connecting hole; 42, first arm; 43, second arm; 431, extension structure; 44, second linkage part; 441, via hole; 45, first indicating mark; 46, second indicating mark; 5, connecting rod. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0036] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0037] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0038] In the description of this application, it should be noted that the terms "inner" and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0039] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0040] A disconnecting switch is a switching device that provides isolation in the open state and can carry short-time short-circuit current. A disconnecting switch typically includes a handle, contact support, stationary contact, and contact bridge. The operator can rotate the handle to move the contact support, causing the contact bridge mounted on the contact support to move synchronously and contact or separate from the stationary contact, thus achieving the opening and closing operation.

[0041] However, the existing disconnectors cannot intuitively display the working state of the disconnectors in the use process due to the absence of corresponding indicating structures, and misoperation of the operators or failure of the opening and closing to reach the position may occur, resulting in low safety and reliability of the disconnectors.

[0042] Based on this, the embodiment of the present application provides a kind of disconnectors, can intuitively display the state of the disconnector, improve the safety and reliability of the disconnector.

[0043] In order for those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings.

[0044] Please refer to Figures 1 to 3 The embodiment provides a kind of disconnectors 100, the disconnector 100 includes shell 1, handle 2, contact support 3 and indicating piece 4.Shell 1 is provided with through hole 11.Handle 2 is rotatably connected to shell 1.Contact support 3 is movably connected to shell 1, contact support 3 is drivingly connected with handle 2, and first linkage part 31 is provided on contact support 3.

[0045] Indicating piece 4 is rotatably connected to shell 1, indicating piece 4 includes rotating part 41 and first arm 42 and second arm 43 spaced apart on rotating part 41, second linkage part 44 is provided on first arm 42, and first indicating mark 45 and second indicating mark 46 are provided on second arm 43.

[0046] First linkage part 31 is connected with second linkage part 44, so that contact support 3 can drive indicating piece 4 to rotate, and at least one of first indicating mark 45 and second indicating mark 46 corresponds to through hole 11 during the rotation of indicating piece 4.

[0047] By providing indicating piece 4 in disconnector 100 and connecting indicating piece 4 with contact support 3, the linkage of indicating piece 4 and contact support 3 is realized, so that in the process of closing or opening of disconnector 100, indicating piece 4 can be driven to act by the action of contact support 3, the first indicating mark 45 or the second indicating mark 46 on indicating piece 4 is corresponded with the through hole 11 on the shell 1, and then the on-off state of the disconnector 100 is corresponded, so that the operator can intuitively check the on-off state of the disconnector 100 from the through hole 11 of the shell 1, reduce the risk of misoperation or operation not in place, and improve the use safety and reliability of the disconnector 100.

[0048] Refer to Figure 1The shell 1 serves as a load-bearing body of the disconnector 100 and has a receiving cavity, the handle 2, the contact support 3, and the indicating member 4 are all installed in the receiving cavity of the shell 1. The handle 2 is rotatably installed in the receiving cavity, and the operating part of the handle 2 extends out of the shell 1 so as to be operated by an operator. The contact support 3 is movably installed in the receiving cavity, and a contact bridge 32 is usually installed on the contact support 3, which can move with the contact support 3 to correspond to or move away from a static contact 12 also installed in the receiving cavity, thereby realizing the on-off of the disconnector 100.

[0049] The indicating member 4 is rotatably installed in the receiving cavity, and the rotating part 41 on the indicating member 4 is used to be rotatably connected with the shell 1, and the rotatable connection form is usually in the form of a shaft and a hole matching. The first arm 42 and the second arm 43 of the indicating member 4 are arranged on the rotating part 41, and the first arm 42 and the second arm 43 extend in different directions based on the rotating part 41, wherein the first arm 42 extends in the direction of the contact support 3, and the second arm 43 extends in the direction of the through hole 11.

[0050] In combination Figure 2 , the second linkage part 44 is arranged on the first arm 42, and the second linkage part 44 is connected with the first linkage part 31 on the contact support 3. In the moving process of the contact support 3, the first arm 42 is driven by the first linkage part 31 and the second linkage part 44, and then the rotating part 41 is driven to rotate by the first arm 42, and then the second arm 43 rotates with the rotating part 41.

[0051] In the rotating process of the second arm 43, the first indicating mark 45 and the second indicating mark 46 also rotate with the second arm 43, and in this process, it can be realized that the through hole 11 corresponding to the first indicating mark 45 is switched to the through hole 11 corresponding to the second indicating mark 46, or the through hole 11 corresponding to the second indicating mark 46 is switched to the through hole 11 corresponding to the first indicating mark 45. In this way, the on-off state of the disconnector 100 can be directly observed through the through hole 11 outside the shell 1, which is beneficial to reduce the risk of misoperation.

[0052] The design of the first indicating mark 45 and the second indicating mark 46 aims to help users quickly identify the state (such as open or close) of the disconnector 100 through intuitive visual information, thereby improving the safety and convenience of operation.

[0053] Specifically, in combination Figure 2 and Figure 3 , the first indicating mark 45 corresponds to the open state of the disconnector 100, when the contact support 3 keeps at the position where the contact bridge 32 is away from the static contact 12, the first indicating mark 45 corresponds to the through hole 11, and the first indicating mark 45 can be directly observed from the outside of the through hole 11, at this time, the disconnector 100 is in the open state.

[0054] The second indication mark 46 corresponds to the closed state of the disconnecting switch 100. When the contact support 3 is kept in the position where the contact bridge 32 is in full contact with the static contact 12, the second indication mark 46 corresponds to the through hole 11, and the second indication mark 46 can be directly observed from outside the through hole 11. At this time, the disconnecting switch 100 is in the closed state. The first indication mark 45 and the second indication mark 46 can be switched at the through hole 11 by moving the handle 2 from the open position to the closed position.

[0055] It should be noted that the contact support 3 can be connected in a rotating or sliding manner in the shell 1. Taking the rotating connection as an example, the contact support 3 can be rotated under the transmission of the handle 2, and the contact support 3 drives the contact bridge 32 to rotate synchronously. The static contact 12 is located on the rotating path of the contact bridge 32. Thus, the contact bridge 32 and the static contact 12 can be contacted or separated during the rotation of the contact support 3.

[0056] In the embodiment, the contact support 3 is installed in the shell 1 in a sliding connection mode. The handle 2 can drive the contact support 3 to slide up and down in the shell 1. The static contact 12 is arranged below the contact support 3. The contact support 3 can be slid downward to make the contact bridge 32 close to and contact the static contact 12, and the contact support 3 can be slid upward to make the contact bridge 32 away from the static contact 12. The setting form can reduce the activity space of the contact support 3 in the accommodating cavity, so as to improve the space utilization.

[0057] The contact support 3 is in transmission connection with the handle 2. The transmission mode can be any one of gear transmission, transmission rod transmission, or friction transmission, as long as the handle 2 can drive the contact support 3 to slide linearly during the rotation of the handle 2.

[0058] In the embodiment, the transmission rod transmission is adopted. The structure is simple, the transmission efficiency is high, and the sliding distance of the contact support 3 and the rotation angle of the handle 2 can be adjusted by adjusting the length of the transmission rod, so as to synchronize the rotation angle of the handle 2 of the disconnecting switch 100 with the rotation angle of the handle 2 of the circuit breaker assembled together, which is beneficial to improve the adaptability and reliability of the disconnecting switch 100 and the circuit breaker.

[0059] Referring to Figure 4 and Figure 5 In some examples, the first linkage part 31 includes a support rod 311 and a linkage shaft 312 arranged on the support rod 311, the second linkage part 44 includes a through hole 441 arranged on the first arm 42, the linkage shaft 312 is arranged in the through hole 441, and at least part of the linkage shaft 312 can abut against the hole wall of the through hole 441.

[0060] Through the above design, the linkage between the first linkage part 31 and the second linkage part 44 is more accurate and reliable, which can effectively transmit the operating force and ensure the smooth operation of the disconnecting switch 100. The cooperation design of the linkage shaft 312 and the through hole 441 not only improves the stability of the structure, but also reduces the wear during movement, prolonging the service life of the equipment.

[0061] With reference to Figure 4 , the support rod 311 is arranged on the side of the contact support 3 close to the indicating element 4, and the support rod 311 can be arranged in an integrated structure with the contact support 3, so as to ensure that the support rod 311 has sufficient mechanical strength and durability. The linkage shaft 312 is fixedly arranged at one end or an intermediate position of the support rod 311, and the linkage shaft 312 can be arranged in an integrated structure with the support rod 311, which also improves the mechanical strength and durability. The shape thereof can be cylindrical, square or other geometric shapes, depending on the actual application requirements. The outer diameter of the linkage shaft 312 is slightly smaller than the inner diameter of the through hole 441, so as to be smoothly arranged in the through hole 441.

[0062] With reference to Figure 5 , the through hole 441 is arranged at the end of the first arm 42 away from the rotating part 41, and the shape and size thereof are matched with the linkage shaft 312. The inner wall of the through hole 441 can be designed as a smooth surface to reduce the friction of the linkage shaft 312 during movement; or can be designed as a structure with a guide groove to further limit the movement track of the linkage shaft 312 and improve the linkage accuracy.

[0063] After the linkage shaft 312 is arranged in the through hole 441, at least part of the linkage shaft 312 can abut against the hole wall of the through hole 441. This design enables the linkage shaft 312 to keep in contact with the inner wall of the through hole 441 during movement, thereby transmitting the movement force and torque. For example, during the opening operation, the linkage shaft 312 abuts against the upper hole wall of the through hole 441 to push the first arm 42 to move; during the closing operation, the linkage shaft 312 abuts against the lower hole wall of the through hole 441 to pull the first arm 42 to move.

[0064] With reference to Figure 4 and Figure 5 , in some examples, the through hole 441 is configured as a waist-shaped hole, and the linkage shaft 312 can move in the waist-shaped hole relative to the waist-shaped hole.

[0065] Through the above design, the cooperation of the waist-shaped hole and the linkage shaft 312 not only improves the operation flexibility and reliability of the disconnecting switch 100, but also reduces the friction and wear during movement, prolonging the service life of the equipment. In addition, the design of the waist-shaped hole can simultaneously adapt to the linear sliding of the contact support 3 and the rotation of the indicating element 4, which is conducive to the smooth linkage between the two.

[0066] The linkage shaft 312 is arranged to pass through the waist-shaped hole and is movable relative to the waist-shaped hole within the length of the waist-shaped hole. For example, during the opening operation, the linkage shaft 312 can be moved to one end of the waist-shaped hole; during the closing operation, the linkage shaft 312 can be moved to the other end of the waist-shaped hole. This design enables the linkage shaft 312 to adjust the position within a certain range, thereby adapting to the linear motion of the contact support 3 and the rotational motion of the indicating member 4.

[0067] Referring to Figure 5 In some examples, the second arm 43 is provided with an extension structure 431 at one end away from the rotating part 41, and the first indicating mark 45 and the second indicating mark 46 are arranged on the extension structure 431 and located on the side of the extension structure 431 facing the through hole 11.

[0068] The provision of the extension structure 431 provides a suitable mounting position for the first indicating mark 45 and the second indicating mark 46, enabling them to exactly correspond to the position of the through hole 11, ensuring that the user can clearly observe the on-off state of the disconnecting switch 100 from outside the housing 1, while the provision of the extension structure 431 makes full use of the space at the end of the second arm 43, avoiding additional occupation of the internal space of the housing 1.

[0069] The extension structure 431 is an extension of the second arm 43, and its shape can be flat, arc-shaped or other geometric shapes, depending on the actual application requirements. The first indicating mark 45 and the second indicating mark 46 are arranged on the surface of the extension structure 431 and located on the side of the extension structure 431 facing the through hole 11. This design enables the user to directly observe the state change of the indicating marks through the through hole 11 when operating the disconnecting switch 100.

[0070] To further enhance the visibility of the indicating marks, a reflective coating or lighting device can be provided on the surface of the extension structure 431 to clearly identify the indicating marks in an environment with insufficient light.

[0071] Referring to Figure 5 In some examples, the extension structure 431 is configured as an extension plate, the first indicating mark 45 and the second indicating mark 46 are arranged on the side of the extension plate facing the through hole 11, and the first indicating mark 45 and the second indicating mark 46 are arranged at optional intervals.

[0072] The design of the extension plate provides a stable mounting platform for the first indicating mark 45 and the second indicating mark 46, and further optimizes the visibility and functionality of the indicating marks through the optional interval arrangement.

[0073] The extension plate is a plate structure, and the extension plate can be arranged as an integral structure with the second arm 43 to ensure sufficient mechanical strength and durability. The width and length of the extension plate can be adjusted according to actual requirements to adapt to different equipment sizes and installation spaces.

[0074] With reference to Figure 5 The first indication mark 45 and the second indication mark 46 are arranged on the extension plate at an optional interval. For example, the first indication mark 45 can be arranged on the left side of the extension plate, and the second indication mark 46 can be arranged on the right side of the extension plate, maintaining a certain interval therebetween. This arrangement not only facilitates the user to distinguish different indication marks, but also avoids visual interference between the marks, improving the identification efficiency.

[0075] In some examples, the first indication mark 45 and the second indication mark 46 are used to provide visual differentiation, and the first indication mark 45 and the second indication mark 46 include at least one of color marks, pattern marks, or text marks.

[0076] In the present embodiment, the first indication mark 45 and the second indication mark 46 are distinguished by different colors. The first indication mark 45 can be set to red, indicating the open state; and the second indication mark 46 can be set to green, indicating the closed state. The color mark design conforms to the internationally recognized color coding standard, facilitating the user to quickly understand the switch state. In addition, the color mark can be realized by spraying, pasting, or injection molding, etc., ensuring its durability and clarity.

[0077] The first indication mark 45 and the second indication mark 46 can also be distinguished by different patterns. For example, the first indication mark 45 can be designed as an "X" pattern, indicating the open state; and the second indication mark 46 can be designed as a "√" pattern, indicating the closed state. The pattern mark design is simple and intuitive, which can effectively reduce the understanding barriers caused by language or cultural differences. The pattern mark can be realized by engraving, printing, or laser etching, etc.

[0078] The first indication mark 45 and the second indication mark 46 can also be distinguished by words. For example, the first indication mark 45 can be marked as "OFF" or "open", and the second indication mark 46 can be marked as "ON" or "closed". The design of the text mark can be localized according to the language habits of the user, further improving the identification efficiency. The text mark can be realized by printing, engraving, or attaching a label, etc.

[0079] In some examples, the first indication mark 45 and the second indication mark 46 can be designed in combination of multiple ways of color, pattern, and text. For example, the first indication mark 45 can simultaneously adopt a red background and "OFF" text, and the second indication mark 46 can simultaneously adopt a green background and "ON" text. The design of such combined marks can provide more rich visual information, further enhancing the user's identification experience.

[0080] Through the above design, the first indication mark 45 and the second indication mark 46 can significantly improve the operation convenience and safety of the isolating switch 100. The user does not need to rely on a complex operation manual or additional detection tools, but can quickly judge the switch state through visual information, thereby reducing the risk of misoperation. In addition, the durability and clarity design of the mark ensures its reliability in long-term use.

[0081] With reference to Figure 2 to 5 In some examples, the extension plate is arranged in an arc shape, and the center of the arc-shaped extension plate is located on the axis of the rotating part 41.

[0082] The design of the arc-shaped extension plate not only optimizes the spatial layout of the structure, but also ensures that the first indication mark 45 and the second indication mark 46 can maintain stable visibility during rotation, thereby improving the operation convenience and user experience of the isolating switch 100.

[0083] The arc-shaped extension plate is a curved plate structure, and the curvature thereof matches the motion trajectory of the rotating part 41. The center of the arc-shaped extension plate is located on the axis of the rotating part 41, so that the extension plate can move stably around the axis during rotation, optimizing the spatial layout and motion stability of the device. The design of the arc-shaped extension plate enables the indication marks to remain clearly visible during rotation, thereby reducing the risk of misoperation and improving user experience.

[0084] With reference to Figure 5 and Figure 6 In some examples, the rotating part 41 includes a shaft body 411 and a rotating connection hole 412 formed on the shaft body 411, and the shell 1 is provided with a rotating mounting column 13, and the rotating connection hole 412 is matched with the rotating mounting column 13.

[0085] The rotating part 41 is connected to the shell 1 in a rotating connection hole 412 and rotating mounting column 13 matching mode, which is simple in structure, can realize quick assembly of the indicating part 4 on the shell 1, and can realize stable rotating effect, so as to ensure that the indicating part 4 can rotate accurately and timely under the linkage of the contact support 3.

[0086] Specifically, the shaft body 411 is a cylindrical structure, and the material thereof can be metal or high-strength plastic, so as to ensure the durability and stability of the rotating part 41. The rotating connection hole 412 is formed at the center of the shaft body 411, and the shape and size thereof are matched with the rotating mounting column 13, so as to realize precise rotating matching.

[0087] The rotating mounting column 13 is fixed in the accommodating cavity, and its position corresponds to the rotating connection hole 412 of the shaft body 411. The outer diameter of the rotating mounting column 13 is slightly smaller than the inner diameter of the rotating connection hole 412, so that the shaft body 411 can rotate freely around the rotating mounting column 13. In order to achieve more stable rotation effect, the outer surface of the rotating mounting column 13 can be provided with a lubricating coating or a bearing, so as to reduce friction and improve rotation efficiency.

[0088] In addition, the matching mode of the rotating connection hole 412 and the rotating mounting column 13 can be clearance fit or interference fit, depending on the actual application requirements. In the case of clearance fit, the shaft body 411 can rotate more flexibly, which is suitable for scenes that need to be frequently operated; while in the case of interference fit, the connection between the shaft body 411 and the rotating mounting column 13 is more tight, which is suitable for scenes that need high precision and stability.

[0089] In order to further enhance the reliability of the rotating part 41, a limiting structure can be further arranged between the shaft body 411 and the shell 1, for example, a flange is arranged at one end of the shaft body 411, or a limiting groove is arranged on the shell 1, so as to prevent the shaft body 411 from being axially displaced during rotation. Such design not only improves the stability of the rotating part 41, but also prolongs its service life.

[0090] Referring to Figure 6 In some examples, the handle 2 is provided with a first connecting part 21, the first connecting part 21 is provided with a first connecting hole 211, the contact support 3 is provided with a second connecting hole 33, and the disconnecting switch 100 further comprises a connecting rod 5, a first end of the connecting rod 5 is connected to the first connecting hole 211, and a second end of the connecting rod 5 is connected to the second connecting hole 33.

[0091] The transmission between the handle 2 and the contact support 3 by the connecting rod 5 has the characteristics of simple structure, high transmission efficiency and convenient assembly, and the rotation angle of the handle 2 can be adjusted by adjusting the length of the connecting rod 5, so that the handle 2 of the disconnecting switch 100 can keep the same rotation angle with the circuit breaker handle 2 assembled together under the premise of ensuring the normal on-off of the disconnecting switch 100, thereby improving the application range of the disconnecting switch 100 and meeting various use scenarios.

[0092] The first connecting part 21 is arranged on the side of the handle 2 close to the inside of the accommodating cavity, the second connecting hole 33 is arranged on the side of the contact support 3 close to the handle 2, and the connecting rod 5 is connected to the first connecting hole 211 and the second connecting hole 33, so that the contact support 3 can be directly driven to move during the rotation of the handle 2.

[0093] The length of the connecting rod 5 is reduced, which can reduce the rotation angle of the handle 2 when the contact support 3 moves to the position where the contact bridge 32 maintains contact with the stationary contact 12, so that the disconnecting switch 100 can be used with circuit breakers with small rotation angles, which is beneficial to meet different use requirements.

[0094] Referring to Figure 6 In some examples, the shell 1 is provided with an assembly boss 14, the assembly boss 14 is provided with an assembly hole 141, the handle 2 is provided with a second connecting part 22, the second connecting part 22 is provided with a third connecting hole 221, and the disconnecting switch 100 further includes a torsion spring 15, a first force arm of the torsion spring 15 is connected to the assembly hole 141, and a second force arm of the torsion spring 15 is connected to the third connecting hole 221.

[0095] By arranging the torsion spring 15 between the shell 1 and the handle 2, the rotation of the handle 2 on the shell 1 can be limited by the elastic force of the torsion spring 15 itself, so that the handle 2 can be fixed in position when rotated to the open position or the closed position. Only when the handle 2 is correctly operated, a pushing force opposite to the elastic force and greater than the elastic force is applied to the handle 2 to realize the on-off of the disconnecting switch 100, effectively reducing the influence of accidental touch on the working state of the disconnecting switch 100 and improving the reliability of the disconnecting switch 100.

[0096] The assembly boss 14 is fixedly arranged in the accommodating cavity of the shell 1, and the assembly boss 14 can be arranged in an integrated structure with the shell 1. The first force arm of the torsion spring 15 is inserted into the assembly hole 141 of the assembly boss 14, so that the first force arm is fixed. The second connecting part 22 is arranged on the handle 2 in a spaced manner from the first connecting part 21, and the second force arm is inserted into the third connecting hole 221 of the second connecting part 22. The second force arm can move with the rotation of the handle 2, and the second force arm changes the position and energy storage state of the torsion spring 15 during movement, thereby changing the direction of the elastic force applied by the torsion spring 15 to the handle 2, and ensuring that the handle 2 can be maintained in the closed position and the open position by the elastic force.

[0097] The second connecting part 22 is arranged in a spaced manner from the first connecting part 21, which can space the torsion spring 15 and the connecting rod 5 apart to avoid interference between the torsion spring 15 and the connecting rod 5 during movement of the handle 2.

[0098] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Those skilled in the art can make various modifications and changes to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A disconnector, characterized in that The utility model relates to a disconnecting switch, including: A shell is provided with a through hole; A handle is rotatably connected to the shell; A contact support is movably connected to the shell, the contact support is in transmission connection with the handle, and a first linkage part is arranged on the contact support; An indicating piece is rotatably connected to the shell, the indicating piece comprises a rotating part and first and second arms arranged at intervals on the rotating part, a second linkage part is arranged on the first arm, and first and second indicating marks are arranged on the second arm; The first linkage part is connected with the second linkage part, so that the contact support can drive the indicating piece to rotate, and at least one of the first and second indicating marks corresponds to the through hole during rotation of the indicating piece.

2. The disconnector according to claim 1, characterized in that The first linkage part comprises a support rod and a linkage shaft arranged on the support rod, the second linkage part comprises a via hole arranged on the first arm, the linkage shaft penetrates the via hole, and at least part of the linkage shaft can abut the hole wall of the via hole.

3. The disconnector according to claim 2, characterized in that The via hole is configured as a waist-shaped hole, and the linkage shaft can move relative to the waist-shaped hole in the waist-shaped hole.

4. The disconnector according to claim 1, characterized in that An extension structure is arranged at an end of the second arm away from the rotating part, the first and second indicating marks are arranged on the extension structure and located on a side of the extension structure facing the through hole.

5. The disconnector according to claim 4, characterized in that The extension structure is configured as an extension plate, the first and second indicating marks are arranged on a side of the extension plate facing the through hole, and the first and second indicating marks are arranged at optional intervals.

6. The disconnector according to claim 4, characterized in that The first and second indicating marks are used for providing visual differentiation, and the first and second indicating marks comprise at least one of color marks, pattern marks or character marks.

7. The disconnector according to claim 5, characterized in that The extension plate is arranged in an arc shape, and the center of the arc-shaped extension plate is located on the axis of the rotating part.

8. The disconnector according to any of claims 1 to 7, characterized in that The rotating part comprises a shaft body and a rotating connection hole arranged on the shaft body, the shell is provided with a rotating mounting column, and the rotating connection hole is matched with the rotating mounting column.

9. The disconnector according to claim 1, characterized in that A first connecting part is arranged on the handle, a first connecting hole is arranged on the first connecting part, a second connecting hole is arranged on the contact support, and the disconnecting switch further comprises a connecting rod, a first end of the connecting rod is connected to the first connecting hole, and a second end of the connecting rod is connected to the second connecting hole.

10. The disconnector according to claim 1, characterized in that An assembly boss is arranged on the shell, an assembly hole is arranged on the assembly boss, a second connecting part is arranged on the handle, a third connecting hole is arranged on the second connecting part, and the disconnecting switch further comprises a torsion spring, a first force arm of the torsion spring is connected to the assembly hole, and a second force arm of the torsion spring is connected to the third connecting hole.

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