Handle assembly and isolating switch

Abstract

The utility model provides a handle assembly, which is used in an isolating switch and comprises an operating handle, a retainer and a base, when the retainer is at a first position, the retainer is separated from the base, and the operating handle can rotate relative to the base; when the retainer is located at the second position, the retainer is clamped in the retaining hole of the base, rotation of the operating handle relative to the base is locked, the retaining hole is a blind hole, and compared with the situation that in other schemes, the retaining hole is a through hole, and a sealing piece needs to be arranged between the retainer and the retaining hole, the retaining hole in the scheme is the blind hole, so that the sealing piece can be arranged between the retainer and the retaining hole. Therefore, a sealing piece does not need to be arranged between the stop piece and the stop hole, the structure is simplified, and the manufacturing cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to switch device technical field, concretely relates to a handle assembly and disconnecting switch. BACKGROUND

[0002] The disconnecting switch is used for isolating in the circuit, and is mainly used for connecting and cutting off the circuit, that is, disconnecting the part needing power-off from the live part in the circuit to ensure that the maintenance work can be safely carried out, and is widely used in fire control, hospital, bank and other places where large-area power-off is not allowed. The disconnecting switch comprises a handle body for controlling closing or opening of the disconnecting switch. The handle body is usually exposed to the outside to facilitate operation, and the disconnecting switch is arranged in an electrical cabinet. The electrical cabinet usually needs to reach a certain protection level, so the handle assembly needs to have certain air tightness. In order to prevent the handle body from being touched by mistake, a locking pin is arranged in the handle body. However, the arrangement of the locking pin makes the sealing structure of the existing handle assembly complex, resulting in complex overall structure of the product. In addition, when the handle body is operated, the rotating position of the handle body cannot be clearly perceived to determine the closing or opening state of the disconnecting switch. SUMMARY

[0003] Therefore, the utility model provides a handle assembly and disconnecting switch aiming at at least one of the above problems.

[0004] The utility model adopts the following scheme to realize:

[0005] The utility model provides a handle assembly for the disconnecting switch, which comprises an operating handle, a stopper and a base. The operating handle is rotatable relative to the base, so that the disconnecting switch can be switched between the closing and opening states by rotating the operating handle. The stopper is displaceably arranged on the operating handle. The stopper has a first position and a second position relative to the base. The stopper can be actuated to move from the first position to the second position. When the stopper is in the first position, the stopper is disengaged from the base, and the operating handle is rotatable relative to the base. When the stopper is in the second position, the stopper is clamped in a stop hole of the base, and the rotation of the operating handle relative to the base is locked. The stop hole is a blind hole.

[0006] In one embodiment, a first matching protrusion and a second matching protrusion are arranged on the side of the operating handle facing the base. A first matching groove and a second matching groove are arranged on the base. The first matching protrusion can match the first matching groove, and the second matching protrusion can match the second matching groove. A first sealing element is arranged in the first matching groove, and a second sealing element is arranged in the second matching groove.

[0007] Wherein, in one embodiment, further comprising a limiting shaft, the operating handle is further provided with a pin installation groove, the limiting shaft is displaceably installed in the pin installation groove, and a pushing piece is arranged between the limiting shaft and the operating handle, the pushing piece pushes the limiting shaft towards the base, the base is provided with a plurality of positioning grooves, and the limiting shaft can be slidably clamped into the positioning grooves with rotation of the operating handle.

[0008] Wherein, in one embodiment, four positioning grooves are arranged around the center of the base.

[0009] Wherein, in one embodiment, a first mark and a second mark are arranged on the outer surface of the base, corresponding to the positions of the operating handle rotating to the closed and open positions of the disconnecting switch respectively.

[0010] Wherein, in one embodiment, the pushing piece is a spring.

[0011] Wherein, in one embodiment, further comprising a padlock, the padlock is provided with a pivot shaft, the padlock is pivotally installed on the operating handle through the pivot shaft, a pushing protrusion is arranged on one side of the pivot shaft of the padlock, and when the padlock rotates relative to the operating handle, the pushing protrusion can push the stopper to move from the first position to the second position.

[0012] Wherein, in one embodiment, the stopper comprises a pushing end face and a guide inclined surface connected to the pushing end face.

[0013] Wherein, in one embodiment, the stopper comprises a cylindrical body and a reset portion connected to one end of the cylindrical body, the reset portion is provided with two reset portions respectively located on both sides of the cylindrical body, and the handle assembly further comprises two reset pieces, the two ends of the reset piece abut against the reset portion and the operating handle respectively.

[0014] The utility model further provides a disconnecting switch comprising the handle assembly according to any one of the preceding embodiments.

[0015] The technical scheme provided by the utility model has the following technical effects:

[0016] 1. The utility model provides a handle assembly for disconnecting switch, including operation handle, stop piece and base, when stop piece is in first position, stop piece is separated with base, and operation handle is rotatable relative to base, when stop piece is in second position, stop piece is clamped in the stop hole of base, and the rotation of operation handle relative to base is locked, the stop hole is blind hole, compared with the stop hole being through hole in some other scheme, it is necessary to set sealing element between stop piece and stop hole, the stop hole is blind hole in the scheme, so that sealing element between stop piece and stop hole can not be set, thereby simplifying the structure, and reducing manufacturing cost.

[0017] 2. Handle assembly further includes limiting shaft, and is equipped with pusher between limiting shaft and operation handle, pusher pushes limiting shaft towards base, base is equipped with a plurality of positioning slot, limiting shaft can slide and be clamped into positioning slot along with the rotation of operation handle, and the sound of limiting shaft sliding and being clamped into positioning slot can be felt obviously by operator, so that the position of rotation can be judged, to assist in judging the on-off state of disconnecting switch. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the front view of handle assembly of the embodiment of the utility model;

[0019] Figure 2 It is the side view of handle assembly of the embodiment;

[0020] Figure 3 It is the partial explosion drawing of handle assembly of the embodiment;

[0021] Figure 4 It is the perspective view of padlock, stop piece, reset piece and base of the embodiment;

[0022] Figure 5 It is the full section view of padlock, stop piece, reset piece and base of the embodiment;

[0023] Figure 6 It is the perspective view of stop piece and reset piece of the embodiment;

[0024] Figure 7 It is the perspective view of stop piece of the embodiment;

[0025] Figure 8 It is the full section view of operation handle, limiting shaft and pusher of the embodiment;

[0026] Figure 9 It is the perspective view of base, first sealing element and second sealing element of the embodiment;

[0027] Figure 10is the full section view of the handle, the limiting shaft, the base, the first sealing element, the second sealing element and the pushing element of this embodiment. DETAILED DESCRIPTION

[0028] To further illustrate the embodiments, the drawings are provided. These drawings are part of the disclosure of the present application, which mainly serve to illustrate the embodiments, and can be used to explain the operating principle of the embodiments in conjunction with the related description of the specification. With reference to these contents, those skilled in the art should be able to understand other possible implementations and the advantages of the present application. The components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0029] The present application will be further described in conjunction with the drawings and specific embodiments.

[0030] Referring to Figures 1-10 , the present embodiment provides a handle assembly 1 used in an isolating switch, which comprises an operating handle 10, a padlock 20, a stopper 30, a reset element 40 and a base 50. The operating handle 10 is rotatable relative to the base 50, so that the isolating switch can be switched between the closed state and the open state by rotating the operating handle 10.

[0031] The stopper 30 is displaceably installed on the operating handle 10. The operating handle 10 is provided with a stopper installation groove (not shown) for accommodating the stopper 30. The stopper 30 has a first position and a second position relative to the base 50, and the stopper 30 can be actuated to move from the first position to the second position. When the stopper 30 is in the first position, the operating handle 10 is rotatable relative to the base 50, as shown in the stopper 30 in the first position. Figure 5 When the stopper 30 is in the second position, the rotation of the operating handle 10 relative to the base 50 is locked.

[0032] Referring to Figures 1-7 , the padlock 20 is pivotally installed on the operating handle 10, and the operating handle 10 is further provided with a padlock installation groove 11 for accommodating the padlock 20. The padlock 20 is provided with a pivot shaft 21, and the padlock 20 is pivotally installed on the operating handle 10 through the pivot shaft 21. The padlock 20 is provided with a pushing protrusion 22 on one side of the pivot shaft 21. When the padlock 20 rotates relative to the operating handle 10, for example, rotates in the direction M from the initial position as shown, the pushing protrusion 22 can push the stopper 30 to move from the first position to the second position, so that the stopper 30 is clamped on the base 50, and the rotation of the operating handle 10 relative to the base 50 is locked. Specifically, the stopper 30 is clamped in the stopper hole 51 of the base 50, so that the rotation of the operating handle 10 relative to the base 50 is locked. Figure 5

[0033] ​The stop hole 51 is a blind hole. Compared with some other solutions where the stop hole 51 is a through hole and a seal needs to be provided between the stop member 30 and the stop hole 51, in this embodiment, the stop hole 51 is a blind hole, so it is not necessary to provide a seal between the stop member 30 and the stop hole 51, thereby simplifying the structure and reducing manufacturing costs.

[0034] The stop 30 includes a cylindrical body 32 and a reset part 31 connected to one end of the cylindrical body 32. Two reset parts 31 are provided, located on opposite sides of the cylindrical body 32. Two reset members 40 are also provided, with their ends abutting against the reset part 31 and the operating handle 10, respectively, thereby providing a restoring force to return the stop 30 to its initial position, i.e., providing a restoring force for the stop 30 to return from the second position to the first position. In this embodiment, the reset member 40 is a spring, but it is not limited to this. For example, the reset member 40 could also be a reset push rod, etc. In the first position, the stop 30 is disengaged from the base 50, and the operating handle 10 is rotatable relative to the base 50.

[0035] Reference Figures 1-7 The stop 30 also includes a push end face 33 and a guide ramp 34 inclinedly connected to the push end face 33. The padlock 20 is relative to the operating handle 10 by... Figure 5 When the initial position is rotated along the M direction, the pushing protrusion 22 first contacts and presses against the guide slope 34, thereby providing an initial thrust for the movement of the stop 30, making it easier to push the stop 30. The operating handle 10 continues to rotate along the M direction until the pushing protrusion 22 contacts and firmly abuts against the push end face 33. At this point, the padlock 20 stably holds the stop 30 in the second position, thereby locking the rotation of the operating handle 10 relative to the base 50. The locked state is stably maintained, preventing the operating handle 10 from being accidentally rotated.

[0036] In this embodiment, the stop 30 is moved from the first position to the second position by the padlock 20, and the reset member 40 provides a restoring force for the stop 30 to return from the second position to the first position. However, this is not the only embodiment. In other embodiments, the stop 30 can be actuated and its position returned in other ways, such as by a push cylinder.

[0037] Reference Figures 8-10In the embodiment, the operation handle 10 is provided with a first matching protrusion 12 and a second matching protrusion 13 on the side facing the base 50, and the base 50 is provided with a first matching groove 53 and a second matching groove 54. The first matching protrusion 12 matches with the first matching groove 53, and the second matching protrusion 13 matches with the second matching groove 54, so that the operation handle 10 can rotate relative to the base 50. In the embodiment, the first matching protrusion 12 and the second matching protrusion 13 are both circular protrusions, but are not limited thereto. For example, in some other embodiments, the first matching protrusion 12 can be a circular protrusion, and the second matching protrusion 13 can be a circular ring protrusion.

[0038] In the embodiment, the first matching groove 53 is provided with a first sealing member 61, and the second matching groove 54 is provided with a second sealing member 62. The first sealing member 61 and the second sealing member 62 can be annular sealing rings, such as O-rings, so as to seal the gap between the operation handle 10 and the base 50, and improve the sealing performance of the handle assembly 1.

[0039] The operation handle 10 is further provided with a pin mounting groove 14, and the limiting shaft 60 is displaceably mounted in the pin mounting groove 14. A pushing member 70 is arranged between the limiting shaft 60 and the operation handle 10. In the embodiment, the pushing member 70 is a spring, but is not limited thereto. The pushing member 70 can also be a push rod or the like.

[0040] The pushing member 70 pushes the limiting shaft 60 towards the base 50. The base 50 is provided with a plurality of positioning grooves 52, which are uniformly arranged around the center of the base 50. In the embodiment, there are four positioning grooves 52, which are uniformly arranged around the center of the base 50. However, the number and positions of the positioning grooves 52 can be adjusted according to actual needs. The limiting shaft 60 can slide into the positioning groove 52 when the operation handle 10 rotates. At this time, the operator can feel the sound of the limiting shaft 60 sliding into the positioning groove 52, so as to determine the position of rotation and assist in determining the on-off state of the disconnecting switch. When the limiting shaft 60 slides out of the positioning groove 52, there is no sound.

[0041] Further, with reference to Figures 1-2 The base 50 is provided with a first mark 101 and a second mark 102 on the outer surface, which correspond to the positions of the operation handle 10 when the operation handle 10 rotates to the on and off positions of the disconnecting switch, so as to further assist the operator in determining the on-off state of the disconnecting switch in combination with the aforementioned sound.

[0042] The embodiment further provides a disconnecting switch, which comprises the handle assembly 1 as described above.

[0043] Although the utility model is specifically shown and introduced in combination with the preferred embodiments, it should be understood by those skilled in the art that various changes can be made to the utility model in form and details without departing from the spirit and scope of the utility model defined in the appended claims, and all of them are within the protection scope of the utility model.

Claims

1. A handle assembly for use in a disconnecting switch, comprising an operating handle, a stopper and a base, the operating handle being rotatable relative to the base so that the disconnecting switch can be switched between a closed or an open state by rotating the operating handle; characterized in that, The stopper is displaceably mounted on the operating handle, the stopper has a first position and a second position relative to the base, the stopper can be actuated to move from the first position to the second position, when the stopper is in the first position, the stopper is disengaged from the base, the operating handle is rotatable relative to the base; when the stopper is in the second position, the stopper is clamped in the stop hole of the base, the rotation of the operating handle relative to the base is locked, and the stop hole is a blind hole.

2. The handle assembly of claim 1, wherein: The side of the operating handle facing the base is provided with a first matching protrusion and a second matching protrusion, and the base is provided with a first matching groove and a second matching groove, the first matching protrusion can match the first matching groove, and the second matching protrusion can match the second matching groove; a first sealing member is mounted in the first matching groove, and a second sealing member is mounted in the second matching groove.

3. The handle assembly of claim 1, wherein: Further comprising a limiting shaft, the operating handle is further provided with a pin mounting groove, the limiting shaft is displaceably mounted in the pin mounting groove, and a pushing member is arranged between the limiting shaft and the operating handle, the pushing member pushes the limiting shaft towards the base, the base is provided with a plurality of positioning grooves, and the limiting shaft can be clamped into the positioning grooves by rotating the operating handle.

4. The handle assembly of claim 3, wherein: There are four positioning grooves, which are evenly distributed around the center of the base.

5. The handle assembly of claim 3, wherein: A first mark and a second mark are arranged on the outer surface of the base, corresponding to the positions of the operating handle rotating to the closed and open positions of the disconnecting switch respectively.

6. The handle assembly of claim 3, wherein: The pushing member is a spring.

7. The handle assembly of claim 1, wherein: Further comprising a padlock, the padlock is provided with a pivot shaft, the padlock is pivotally mounted on the operating handle through the pivot shaft, a pushing protrusion is arranged on one side of the pivot shaft of the padlock, and when the padlock rotates relative to the operating handle, the pushing protrusion can push the stopper to move from the first position to the second position.

8. The handle assembly of claim 7, wherein: The stopper comprises a pushing end face and a guide inclined surface connected to the pushing end face.

9. The handle assembly of claim 7, wherein: The stopper comprises a cylindrical body and a reset portion connected to one end of the cylindrical body, the reset portion is provided with two reset portions respectively located on both sides of the cylindrical body; the handle assembly further comprises two reset members, the two ends of the reset members abut against the reset portions and the operating handle respectively.

10. A disconnector, characterized in that The handle assembly comprises the handle assembly according to any one of claims 1-9.

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