CN218826719U

CN218826719U - Operating handle and isolating switch

Info

Publication number: CN218826719U
Application number: CN202223315680.5U
Authority: CN
Inventors: 巴飞; 付青松
Original assignee: Shanghai Liangxin Electrical Co Ltd
Current assignee: Shanghai Liangxin Electrical Co Ltd
Priority date: 2022-12-09
Filing date: 2022-12-09
Publication date: 2023-04-07
Anticipated expiration: 2032-12-09

Abstract

An operating handle and an isolating switch relate to the technical field of low-voltage electrical appliances. The operating handle comprises a base, a first sealing element, a second sealing element and a body which is rotatably connected to the base; one side of the base, which is far away from the body, is fixedly connected with the cabinet body, static sealing is realized through a first sealing element, and a second sealing element is arranged between the body and the base, so that dynamic sealing is realized; one side of the body, which is close to the base, is provided with a limiting hole matched with a main shaft of the isolating switch, and the base is provided with a first through hole which is communicated with the limiting hole and is used for the main shaft to pass through; the body is driven to rotate on the base, and the main shaft can drive the isolating switch to be switched on or switched off. The operating handle is simple in structure and can realize reliable sealing.

Description

Operating handle and isolating switch

Technical Field

The utility model relates to a low-voltage apparatus technical field particularly, relates to an operating handle and isolator.

Background

Along with the rapid development of economy, the living standard of people is remarkably improved, and the electricity safety is more comprehensively known. In order to increase the safety of electricity utilization, a disconnecting switch is usually connected in a circuit, so that when the electrical equipment is maintained, the power supply is cut off through the disconnecting switch, the electrical equipment is isolated from a live part, and an effective isolation distance is kept.

The existing disconnecting switch is usually provided with a body arranged in a cabinet body, and an operating handle arranged outside the cabinet body for facilitating operation. When the overall system provided with the isolating switch has higher protection requirements (for example, the protection level of the electrical equipment shell against the invasion of foreign matters is required to reach the IP65 protection level), the operating handle is required to reach the corresponding IP protection level, and therefore, the operating handle with a certain protection level is produced. However, most of the conventional operating handles have complicated structures, and have the problems of many air leakage points and poor reliability, so that the requirements of users are difficult to meet.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an operating handle and isolator, this operating handle and isolator simple structure, and it can realize reliable sealed.

The embodiment of the utility model is realized like this:

one aspect of the present invention provides an operating handle, which comprises a base, a first sealing member, a second sealing member, and a body rotatably connected to the base; one side of the base, which is far away from the body, is fixedly connected with the cabinet body, static sealing is realized through a first sealing element, and a second sealing element is arranged between the body and the base, so that dynamic sealing is realized; one side of the body, which is close to the base, is provided with a limiting hole matched with a main shaft of the isolating switch, and the base is provided with a first through hole which is communicated with the limiting hole and is used for the main shaft to pass through; the body is driven to rotate on the base, and the main shaft can drive the disconnecting switch to be switched on or switched off. The operating handle is simple in structure and can realize reliable sealing.

Optionally, the operating handle further comprises a pressing plate fixedly connected with the body, the pressing plate is located on one side of the body close to the base and forms a limiting portion with the body in a surrounding mode, and the base is clamped in the limiting portion.

Optionally, one surface of the body close to the base is provided with an annular protrusion, and the base is provided with an annular groove which is opposite to and matched with the annular protrusion; the operating handle also comprises a third sealing piece, and the annular bulge is embedded in the annular groove and sealed by the third sealing piece.

Optionally, the operating handle further comprises a locking mechanism arranged on the body, and the locking mechanism is used for locking or unlocking the body; one surface of the base, which is close to the body, is concavely provided with a blind hole; when the isolating switch is at the switching-on position, the stop piece of the locking mechanism penetrates through the body and is positioned outside the blind hole; when isolator is in the separating brake position, the retainer wears to locate this internal and can be driven the time at least part stretch into with the locking body in the blind hole.

Optionally, the body is provided with an accommodating cavity and a stop hole communicated with the accommodating cavity; the locking mechanism comprises a lock catch which is positioned in the accommodating cavity and is rotationally connected with the body and a stop piece which is arranged in the stop hole in a penetrating way; when the isolating switch is at the switching-on position, one end of the retainer is abutted against the lock catch, and the other end of the retainer is abutted against one surface of the base facing the body; the body is driven to rotate so that the stop hole corresponds to the blind hole, the lock catch is driven to rotate relative to the body, and when the isolating switch is located at the opening position, the lock catch can drive the stop piece to move towards the base and enable the stop piece to be partially clamped in the blind hole.

Optionally, the one end that the retainer was kept away from to the hasp is equipped with the lockhole, and locking mechanism still includes the locking piece, and the locking piece is used for hanging when the lockhole rotates outside the holding chamber and establishes in the lockhole.

Optionally, the operating handle further comprises a fourth sealing member sleeved on the periphery of the stop member, and when the stop member is partially clamped in the blind hole, the base and the stop member are sealed by the fourth sealing member.

Optionally, the fourth seal comprises two, one fourth seal for sealing the base and the stop member and the other fourth seal for sealing the body and the stop member when the stop member is partially captured within the blind hole.

Optionally, the operating handle further comprises a housing fixedly connected to a surface of the base, which faces away from the body, and a second via hole coaxial with the first via hole is formed in the center of the housing; the body is also provided with an avoiding groove communicated with the limiting hole, and the avoiding groove is matched with the positioning pin on the outer wall of the main shaft; a avoidance hole communicated with the second via hole is formed in the housing; when the isolating switch is at the brake separating position, the avoiding hole corresponds to the avoiding groove.

The utility model discloses an on the other hand provides an isolator, and this isolator includes operating device, contact element and foretell operating handle, and operating handle and operating device drive are connected, and operating device is connected with the contact element drive, and operating handle can drive the contact element through the motion of drive operating device and close a floodgate or separating brake.

The beneficial effects of the utility model include:

the operating handle comprises a base, a first sealing element, a second sealing element and a body which is rotatably connected to the base; one side of the base, which is far away from the body, is fixedly connected with the cabinet body, static sealing is realized through a first sealing element, and a second sealing element is arranged between the body and the base, so that dynamic sealing is realized; one side of the body, which is close to the base, is provided with a limiting hole matched with a main shaft of the isolating switch, and the base is provided with a first through hole which is communicated with the limiting hole and is used for the main shaft to pass through; the body is driven to rotate on the base, and the main shaft can drive the disconnecting switch to be switched on or switched off. When needing separating brake or closing a floodgate, the user only needs drive body to rotate to make the body rotation on the base, so, the spacing hole of locating the body of card just can drive the main shaft and rotate, thereby makes the main shaft drive isolator's operating device motion, and then realizes isolator's combined floodgate or separating a floodgate. According to the cabinet, the first sealing piece is arranged on one side, away from the body, of the base, so that when the base is fixedly connected with the cabinet body, the first sealing piece can realize static sealing of the cabinet body and the base; and through set up the second sealing member between base and body, so, even when the body rotates relative to the base, can also realize the dynamic seal between body and the base through the second sealing member. According to the isolating switch, the structure of the operating handle is arranged as above, so that the opening or closing of the isolating switch can be realized through simple operation; secondly, can realize reliably sealing the most two main potential gas leakage points (namely the gas leakage point between base and the cabinet body and the gas leakage point between base and the body) between operating handle and the cabinet body, relative prior art, this application has better application prospect.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of an operating handle provided in an embodiment of the present invention when switching on;

fig. 2 is one of the schematic structural diagrams of the operating handle according to the embodiment of the present invention when the brake is opened;

fig. 3 is a second schematic structural view of the operating handle according to the embodiment of the present invention when the brake is opened;

fig. 4 is a schematic structural view of the operating handle when closing and locking according to the embodiment of the present invention;

fig. 5 is a schematic structural diagram of a base according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a body according to an embodiment of the present invention;

fig. 7 is a schematic structural view of the locking mechanism, the main shaft, the pressing plate, the housing and the cabinet body provided in the embodiment of the present invention;

fig. 8 is a schematic structural diagram of a disconnecting switch according to an embodiment of the present invention.

An icon: 10-a base; 11-a first via; 12-an annular groove; 13-blind hole; 14-an oil groove; 20-a first seal; 30-a second seal; 40-a body; 41-a limiting part; 42-an annular projection; 43-a housing chamber; 44-a stop hole; 45-avoidance groove; 50-pressing plate; 51-an avoidance cavity; 60-a third seal; 70-a locking mechanism; 71-locking; 711-keyhole; 72-a stop; 80-a fourth seal; 90-a housing; 91-a second via hole; 92-avoiding holes; 200-a cabinet body; 300-a main shaft; 400-contact unit.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 4, the present embodiment provides an operating handle, which includes a base 10, a first sealing member 20, a second sealing member 30, and a body 40 rotatably connected to the base 10; one side of the base 10, which is far away from the body 40, is fixedly connected with the cabinet 200, static sealing is realized through the first sealing element 20, and the second sealing element 30 is arranged between the body 40 and the base 10 to realize dynamic sealing; one side of the body 40, which is close to the base 10, is provided with a limiting hole matched with the main shaft 300 of the isolating switch, and the base 10 is provided with a first through hole 11 which is communicated with the limiting hole and is used for the main shaft 300 to pass through; the body 40 is driven to rotate on the base 10, and the main shaft 300 can drive the disconnecting switch to be switched on or switched off. The operating handle is simple in structure and can realize reliable sealing.

The structure of the operation mechanism of the disconnector is generally installed in the cabinet 200, and the operation handle thereof is installed outside the cabinet 200 for the convenience of operation. The operating handle that this application provided just is that the operating device who is used for the isolator that the drive is located cabinet body 200 carries out the separating brake and closes the floodgate, and the structure of the operating handle of this application possesses the gas tightness of preferred than prior art.

The cabinet 200 refers to an outer casing of an electrical cabinet. In this embodiment, the operating handle of the isolating switch is exposed outside the cabinet 200 (and the rest components of the isolating switch are disposed in the cabinet 200), so that a user can operate the product switching on and off through the operating handle outside the cabinet 200.

The operating handle comprises a base 10 fixedly connected to the cabinet 200, and in order to ensure the sealing performance between the base 10 and the cabinet 200, in this embodiment, the operating handle further comprises a first sealing member 20, and the first sealing member 20 is located between the base 10 and the cabinet 200. During installation, the first sealing element 20 needs to be arranged between the base 10 and the cabinet 200, and then the cabinet 200 is fixedly connected with the base 10, so that static sealing can be realized between the operating handle and the cabinet 200 through the first sealing element 20.

Wherein, the base 10 can be embedded with the nut near the one side of the cabinet body 200, the cabinet body 200 is also provided with the through hole correspondingly, thus, the nut on the cabinet body 200 and the base 10 can be passed through the bolt and fastened.

The second sealing member 30 is disposed between the body 40 and the base 10 for sealing the body 40 and the base 10. For example, referring to fig. 1 and fig. 2, the second sealing element 30 may be specifically located on a side of the base 10 facing the body 40, and the second sealing element 30 is located at a position of the base 10 near the first via 11.

In addition, in this embodiment, in order to facilitate driving the disconnecting switch to open or close through the body 40, a limit hole adapted to the main shaft 300 of the disconnecting switch is disposed on one surface of the body 40 close to the base 10, and the base 10 is disposed with a first via hole 11 communicated with the limit hole. The central axes of the limiting hole and the first through hole 11 coincide, and together form a space for accommodating the spindle 300, as shown in fig. 1. Thus, the user can open or close the disconnecting switch by rotating the body 40 to rotate the body 40 on the base 10.

In summary, the present application provides an operating handle including a base 10, a first sealing member 20, a second sealing member 30, and a body 40 rotatably connected to the base 10; one side of the base 10, which is far away from the body 40, is fixedly connected with the cabinet 200 and sealed by a first sealing element 20, and a second sealing element 30 is arranged between the body 40 and the base 10; one side of the body 40 close to the base 10 is provided with a limiting hole matched with the main shaft 300 of the isolating switch, and the base 10 is provided with a first through hole 11 communicated with the limiting hole and used for the main shaft 300 to pass through; the body 40 is driven to rotate on the base 10, and the main shaft 300 can drive the disconnecting switch to be switched on or switched off. When needing separating brake or closing brake, the user only needs drive body 40 to rotate to make body 40 rotation on base 10, so, the spacing hole of locating body 40 of card just can drive main shaft 300 and rotate, thereby makes main shaft 300 drive isolator's operating device motion, and then realizes isolator's closing brake or separating brake. According to the cabinet, the first sealing element 20 is arranged on one side, away from the body 40, of the base 10, so that when the base 10 is fixedly connected with the cabinet 200, the first sealing element 20 can realize static sealing of the cabinet 200 and the base 10; and by providing the second sealing member 30 between the base 10 and the body 40, dynamic sealing between the body 40 and the base 10 can be achieved by the second sealing member 30 even when the body 40 is rotated relative to the base 10. According to the isolating switch, the structure of the operating handle is arranged as above, so that the opening or closing of the isolating switch can be realized through simple operation; secondly, can realize reliably sealing the two foremost potential leak gas points (namely the leak gas point between base 10 and the cabinet body 200 and the leak gas point between base 10 and the body 40) between operating handle and the cabinet body 200, relative to prior art, this application has better application prospect.

Referring to fig. 1 and fig. 3, optionally, the operating handle further includes a pressing plate 50 fixedly connected to the body 40, the pressing plate 50 is located on one side of the body 40 close to the base 10, and encloses with the body 40 to form a limiting portion 41, and the base 10 is clamped in the limiting portion 41.

That is, the pressing plate 50 is fixedly connected to the body 40 and is located on one surface of the body 40 close to the base 10. In this embodiment, the pressing plate 50 and the body 40 can be enclosed to form a limiting portion 41, and the base 10 is correspondingly clamped into the limiting portion 41, so that the base 10 can limit the body 40 to move along the axial direction of the spindle 300, and thus, the body 40 can only rotate but cannot move up and down, and the body 40 can be prevented from slipping off the base 10.

For example, referring to fig. 1, the position-limiting portion 41 may be disposed in a ring shape, so that an inner edge of the base 10 (i.e., an edge of the base 10 close to the first via 11) may be correspondingly clamped in the ring-shaped position-limiting portion 41. Of course, the annular limiting portion 41 is merely an example and is not a limitation of the present application, and in other embodiments, the limiting portion 41 may include a plurality of limiting portions 41, and the plurality of limiting portions 41 are uniformly distributed on the outer periphery of the body 40.

Referring to fig. 1 and 4, optionally, one surface of the body 40 close to the base 10 is provided with an annular protrusion 42, and the base 10 is provided with an annular groove 12 opposite to and matching with the annular protrusion 42; the operating handle further comprises a third sealing member 60, and the annular protrusion 42 is embedded in the annular groove 12 and sealed by the third sealing member 60.

According to the invention, the body 40 is provided with the annular bulge 42 which is convexly arranged towards the base 10, and the base 10 is provided with the annular groove 12 which is concavely arranged inwards, so that the body 40 and the base 10 can be relatively limited, and the rotation of the body 40 relative to the base 10 cannot be influenced because the bulge and the groove are annular; secondly, the third sealing element 60 is further arranged in the annular groove 12, so that air leakage of the base 10 and the body 40 at the annular groove 12 can be avoided, and the sealing performance of the base 10 and the body 40 can be further improved.

The second sealing element 30 of the present application is located between the third sealing element 60 and the main shaft 300, the second sealing element 30 is located at the position of the base 10 close to the main shaft 300, and the third sealing element 60 is located at the outer edge of the base 10, so that the two sealing elements can play a double protection role in sealing between the base 10 and the body 40, and the problem that the sealing performance between the body 40 and the base 10 is deteriorated due to the sealing failure at any one of the two sealing elements is avoided.

With reference to fig. 1, optionally, the operating handle further includes a locking mechanism 70 disposed on the body 40, and the locking mechanism 70 is used for locking or unlocking the body 40; a blind hole 13 is concavely arranged on one surface of the base 10 close to the body 40; when the disconnecting switch is at the switching-on position, the stopper 72 of the locking mechanism 70 penetrates through the body 40 and is positioned outside the blind hole 13, and at this time, the body 40 is in the unlocking state; when the disconnecting switch is in the opening position, the stop piece 72 penetrates through the body 40 and can at least partially extend into the blind hole 13 to lock the body 40 when being driven, and at the moment, a user can drive the stop piece 72 to move towards the blind hole 13 to lock the body 40.

Specifically, in this embodiment, the locking mechanism 70 may be configured to lock the body 40 during opening and unlock the body 40 during closing, so that it is possible to avoid that the disconnecting switch is closed due to a user performing a misoperation on the body 40 in a fault or maintenance state; and when closing, the body 40 is locked, so that the time switch is not limited in an emergency state.

Referring to fig. 2, 4 and 6, optionally, a blind hole 13 is concavely formed on one surface of the base 10 close to the body 40; the body 40 is provided with an accommodating cavity 43 and a stop hole 44 communicated with the accommodating cavity 43; the locking mechanism 70 comprises a lock catch 71 which is positioned in the accommodating cavity 43 and is rotationally connected with the body 40, and a stop piece 72 which is arranged in the stop hole 44 in a penetrating way; when the disconnecting switch is in the switching-on position, one end of the stopper 72 abuts against the lock catch 71, and the other end abuts against one surface of the base 10 facing the body 40; when the body 40 is driven to rotate so that the stop hole 44 corresponds to the blind hole 13, the lock catch 71 is driven to rotate relative to the body 40, and when the disconnecting switch is in the open position, the lock catch 71 can drive the stop piece 72 to move towards the base 10 and enable the stop piece 72 to be partially clamped in the blind hole 13.

Referring to fig. 2 and 5, it can be seen that, since no other through holes are formed on the base 10 except for the first via hole 11, the problem of poor sealing performance due to many potential air leakage points caused by the multiple holes can be substantially reduced.

The body 40 is further provided with an accommodating cavity 43 and a stop hole 44 which are communicated with each other, wherein the accommodating cavity 43 is used for accommodating a lock catch 71, the stop hole 44 is used for accommodating a stop piece 72, and one end of the lock catch 71 close to the stop piece 72 is hinged to the body 40.

In addition, the locking mechanism 70 may further optionally include a return spring (not shown) having one end connected to the stopper 72 and the other end extended toward the base 10.

When the disconnector is in a closed state, as shown in fig. 1, the latch 71 is completely accommodated in the accommodating cavity 43, the stopper 72 is located in the stopper hole 44, and one end of the stopper 72 abuts against the latch 71 and the other end abuts against the plane of the base 10. At this time, since the stopper 72 restricts the rotation of the lock catch 71, at this time, the lock catch 71 cannot rotate; when the driving body 40 rotates on the base 10 to make the disconnecting switch in a tripping state, at this time, as shown in fig. 2, the stopper 72 is driven by the body 40 to rotate to above the blind hole 13 (at this time, one end of the return spring is connected with the stopper 72, the other end of the return spring abuts against the base 10, and the stopper 72 cannot directly fall into the blind hole 13 under the action of the return spring); at this time, the lock catch 71 is driven to rotate relative to the body 40, and at this time, one end of the lock catch 71 close to the stopper 72 can push the stopper 72 to move towards the inside of the blind hole 13, so that the stopper 72 is partially clamped in the blind hole 13, as shown in fig. 4.

In order to effectively prevent the user from operating the isolating switch by mistake, optionally, one end of the lock catch 71 away from the stop member 72 is provided with a lock hole 711, as shown in fig. 4, the locking mechanism 70 further includes a locking member (not shown) for hanging in the lock hole 711 when the lock hole 711 rotates out of the accommodating cavity 43. Thus, the latch 71 is locked against rotation, and the disconnector is locked in the open position.

In order to further improve the sealing performance of the operating handle, optionally, the operating handle further includes a fourth sealing member 80 sleeved on the outer periphery of the stop member 72, and when the stop member 72 is partially clamped in the blind hole 13, the base 10 and the stop member 72 are sealed by the fourth sealing member 80. By providing the fourth sealing member 80, the sealing performance between the stopper 72 and the body 40 when the locker 71 is rotated can be improved.

For example, the first seal 20, the second seal 30, the third seal 60, and the fourth seal 80 in the present application may be O-rings, U-rings, or the like.

Referring to fig. 4, optionally, the number of the fourth sealing elements 80 is two, and when the stopper 72 is partially inserted into the blind hole 13, one of the fourth sealing elements 80 is used for sealing the base 10 and the stopper 72, and the other fourth sealing element 80 is used for sealing the body 40 and the stopper 72. Thus, the sealing performance of the operating handle can be effectively improved.

Optionally, referring to fig. 1 and fig. 7, the operating handle further includes a cover 90 fixedly connected to a surface of the base 10 away from the body 40, and a second through hole 91 coaxial with the first through hole 11 is formed in the center of the cover 90; the body 40 is also provided with an avoiding groove 45 communicated with the limiting hole, and the avoiding groove 45 is matched with a positioning pin on the outer wall of the main shaft 300; a avoidance hole 92 communicated with the second via hole 91 is formed in the housing 90; when the isolating switch is at the opening position, the avoiding hole 92 corresponds to the avoiding groove 45.

In the present embodiment, the avoiding groove 45 and the avoiding hole 92 are both square, and correspondingly, when the pressing plate 50 is provided on the operating handle, the avoiding cavity 51 should be correspondingly provided on the pressing plate 50. It should be noted that, when the disconnecting switch is at the closing position, the avoidance groove 45 corresponds to the avoidance cavity 51, but the avoidance groove and the avoidance cavity are dislocated from the avoidance hole 92, and at this time, the cabinet body 200 cannot be opened, so that the safety protection effect is achieved. When isolator was in the separating brake position, dodged groove 45, dodged chamber 51 and dodged the mutual alignment of hole 92 three and communicate, at this moment, the locating pin on the main shaft 300 just in time can be through dodging hole 92 on the housing 90, and the cabinet door can be opened this moment, convenient maintenance or maintenance.

In addition, referring to fig. 5, the base 10 is provided with radial oil grooves 14, and the oil grooves 14 are used for storing grease, so that the friction between the base 10 and the pressure plate 50 can be changed from dry friction to grease-lubricated friction. Also, the pressure plate 50 and the body 40 of the present application are fixedly coupled by a set screw, as shown in fig. 3.

The utility model discloses an on the other hand, as shown in fig. 8, provides a disconnector, and this disconnector includes operating device, contact element 400 and foretell operating handle, and operating handle and operating device drive are connected, and operating device and contact element 400 drive are connected, and operating handle can drive contact element 400 through the motion of drive operating device and close a floodgate or separating brake. Since the specific structure and the beneficial effects of the operating handle have been described in detail in the foregoing, the detailed description is omitted here.

It should be noted that, in this embodiment, the operating handle may be installed above the cabinet 200 (as shown in fig. 8), and at this time, the user may laterally operate the operating handle; or, the handle may be mounted on the front surface of the cabinet 200 (i.e., in the shaft hole on the front surface of the cabinet 200 in fig. 8), and at this time, the user may operate the operating handle in the forward direction. The user can select the mounting position of operating handle as required, and this application does not do specific restriction to the mounting position of operating handle on cabinet 200.

The above description is only an alternative embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and in order to avoid unnecessary repetition, the present invention does not need to describe any combination of the features.

Claims

1. An operating handle, characterized by comprising a base (10), a first sealing member (20), a second sealing member (30) and a body (40) rotatably connected to the base (10); one side, away from the body (40), of the base (10) is fixedly connected with a cabinet body (200) and sealed through the first sealing element (20), and the second sealing element (30) is arranged between the body (40) and the base (10); one side, close to the base (10), of the body (40) is provided with a limiting hole matched with a main shaft (300) of the isolating switch, and the base (10) is provided with a first through hole (11) which is communicated with the limiting hole and is used for the main shaft (300) to penetrate through;

the body (40) is driven to rotate on the base (10), and the main shaft (300) can drive the disconnecting switch to be switched on or switched off.

2. The operating handle according to claim 1, further comprising a pressing plate (50) fixedly connected to the body (40), wherein the pressing plate (50) is located on one side of the body (40) close to the base (10) and forms a limiting portion (41) with the body (40), and the base (10) is clamped in the limiting portion (41).

3. The operating handle according to claim 1, wherein one face of the body (40) close to the base (10) is provided with an annular projection (42), the base (10) is provided with an annular groove (12) opposite to and adapted to the annular projection (42); the operating handle further comprises a third sealing piece (60), and the annular protrusion (42) is embedded in the annular groove (12) and sealed by the third sealing piece (60).

4. The operating handle according to claim 1, further comprising a locking mechanism (70) provided on the body (40), the locking mechanism (70) being used to lock or unlock the body (40); a blind hole (13) is concavely arranged on one surface of the base (10) close to the body (40); when the disconnecting switch is in a switching-on position, a stop piece (72) of the locking mechanism (70) penetrates through the body (40) and is positioned outside the blind hole (13); when the disconnecting switch is in the opening position, the stop piece (72) penetrates through the body (40) and can at least partially extend into the blind hole (13) to lock the body (40) when being driven.

5. The operating handle according to claim 4, wherein the body (40) is provided with a housing cavity (43), a stop hole (44) communicating with the housing cavity (43); the locking mechanism (70) comprises a lock catch (71) which is positioned in the accommodating cavity (43) and is rotationally connected with the body (40), and a stop piece (72) which is arranged in the stop hole (44) in a penetrating way; when the disconnecting switch is in a switching-on position, one end of the stop piece (72) is abutted against the lock catch (71), and the other end of the stop piece is abutted against one surface, facing the body (40), of the base (10);

the body (40) is driven to rotate so that the stop hole (44) corresponds to the blind hole (13), the lock catch (71) is driven to rotate relative to the body (40), and when the isolating switch is in an opening position, the lock catch (71) can drive the stop piece (72) to move towards the base (10) and enable the stop piece (72) to be partially clamped in the blind hole (13).

6. The operating handle according to claim 5, wherein an end of the locking catch (71) away from the stopper (72) is provided with a locking hole (711), and the locking mechanism (70) further comprises a locking member for hanging in the locking hole (711) when the locking hole (711) is rotated out of the accommodating chamber (43).

7. The operating handle according to claim 4, further comprising a fourth seal (80) provided around the periphery of the stopper (72), wherein the seat (10) and the stopper (72) are sealed by the fourth seal (80) when the stopper (72) is partially engaged in the blind hole (13).

8. The operating handle according to claim 7, wherein the fourth sealing member (80) comprises two, one of the fourth sealing members (80) sealing the base (10) and the stopper (72) and the other of the fourth sealing members (80) sealing the body (40) and the stopper (72) when the stopper (72) is partially snapped into the blind hole (13).

9. The operating handle according to claim 1 or 5, characterized in that it further comprises a cover (90) fixedly connected to the side of the base (10) facing away from the body (40), the center of the cover (90) being provided with a second through hole (91) coaxial with the first through hole (11); the body (40) is also provided with an avoiding groove (45) communicated with the limiting hole, and the avoiding groove (45) is matched with the positioning pin on the outer wall of the main shaft (300); a avoiding hole (92) communicated with the second through hole (91) is formed in the housing (90); when the isolating switch is at the brake separating position, the avoiding hole (92) corresponds to the avoiding groove (45).

10. An isolating switch, characterized by comprising an operating mechanism, a contact unit and the operating handle of any one of claims 1 to 9, wherein the operating handle is in driving connection with the operating mechanism, the operating mechanism is in driving connection with the contact unit (400), and the operating handle can drive the contact unit (400) to close or open by driving the operating mechanism to move.