CN203456327U - Drive mechanism of switching device, and switching device - Google Patents

Abstract

The driving mechanism of the switching device and the switching device thereof include a driving shaft (10), a sliding part (20) and an elastic driving assembly (40). The drive shaft has a first drive part (12) and a second drive part (14) in its circumferential direction. The sliding piece has a first limiting part (22), a second limiting part (24) and a transmission part (26). The elastic drive assembly can be connected to the slider, which can generate an elastic restoring force acting on the slider and hindering the movement of the slider. If the driving shaft is in the disconnected position, the first driving part abuts against the first limiting part and the second driving part abuts against the transmission part. If the driving shaft is at the testing position, the first driving part abuts against the first limiting part and the second limiting part. If the driving shaft rotates from the disconnected position or the testing position to the testing position or the disconnected position, the first driving part can overcome the elastic restoring force of the elastic driving part and push the first limiting part to drive the sliding part to move along the sliding direction.

Description

Driving mechanism of switching device and switching device thereof

technical field

The utility model relates to a driving mechanism, in particular to a driving mechanism for a switching device. The utility model also provides a switching device using the driving mechanism.

Background technique

In the switching device, by rotating the drive shaft, the movable contact and the fixed contact can be contacted and separated, thereby realizing the on-off control of the power supply line. Usually, a closed position, a disconnected position and a test position are sequentially set during the rotation of the drive shaft. Point separation, test position for functional testing of switching devices. When the drive shaft is switched between the disconnected position and the test position, it is necessary to restrict the drive shaft to the disconnected position and the test position respectively, so as to ensure the reliability of the switching device.

Utility model content

The purpose of the utility model is to provide a driving mechanism of a switching device to realize the switching of the driving shaft between the disconnected position and the testing position.

Another object of the present utility model is to provide a switching device using the above-mentioned driving mechanism.

The utility model provides a driving mechanism of a switching device, which comprises a driving shaft, a sliding part and an elastic driving assembly. The drive shaft is rotatably arranged on the switching device, it has an off position for separating the movable contact of the switching device from the fixed contact and a test position for functional testing of the switching device, and the drive shaft has a A first drive unit and a second drive unit. The rotation of the driving shaft can drive the slider to move along a sliding direction, and the slider has a first limiting part, a second limiting part and a transmission part. The elastic drive assembly can be connected to the slider, which can generate an elastic restoring force acting on the slider and hindering the movement of the slider. If the driving shaft is in the disconnected position, the first driving part abuts against the first limiting part and the second driving part abuts against the transmission part. If the driving shaft is at the testing position, the first driving part abuts against the first limiting part and the second limiting part. If the drive shaft rotates from the disconnected position to the test position, or from the test position to the disconnected position, the first drive part can overcome the elastic restoring force of the elastic drive part and push the first limit part to drive the slider to move along the sliding direction, Thus, switching of the drive shaft between the disconnected position and the test position is achieved.

In yet another exemplary embodiment of the driving mechanism of the switching device, the elastic driving assembly includes a frame, an elastic member, a connecting member and a transmission member. The elastic part is arranged on the frame, and one end of the elastic part can lean against the frame. The connecting piece is arranged on the frame, and the other end of the elastic piece can lean against the connecting piece. The transmission part is arranged on the frame, and has a contact end which can be in contact with the connecting part and a transmission end which can be connected with the sliding part.

In another exemplary embodiment of the driving mechanism of the switching device, the first driving part and the second driving part are protrusions extending radially along the driving shaft.

In yet another exemplary embodiment of the driving mechanism of the switching device, the first stopper is a protrusion extending toward the drive shaft, and when the drive shaft rotates from the disconnected position to the test position, or from the test position to the When the disconnected position is rotated, the first driving part can slide along the outline of the first limiting part.

In yet another exemplary embodiment of the driving mechanism of the switching device, the first limiting part has a first sliding end surface, a second sliding end surface and a top that can be connected with the first sliding end surface and the second sliding end surface. convex.

The utility model also provides a switching device, which includes a casing and the above-mentioned driving mechanism, which is arranged on the casing.

Description of drawings

The following drawings only schematically illustrate and explain the utility model, and do not limit the scope of the utility model.

FIG. 1 is a schematic structural view illustrating an exemplary embodiment of a driving mechanism of a switching device.

2 to 7 are used to illustrate the movement process of the driving mechanism of the switching device in FIG. 1 .

Fig. 8 shows a schematic structural view of an exemplary embodiment of a switching device.

Label description

10 drive shaft

12 The first drive unit

14 Second drive unit

20 sliders

22 The first limit part

24 The second limit part

26 transmission department

40 elastic drive components

42 elastic parts

44 transmission parts

442 contact end

444 drive end

46 frame

48 Connectors.

Detailed ways

In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation of the utility model is now described with reference to the accompanying drawings, and the same symbols in each figure represent the same parts.

In this article, "schematic" means "serving as an example, example or illustration", and any illustration or implementation described as "schematic" should not be interpreted as a more preferred or more advantageous Technical solutions.

In order to make the drawings concise, the parts related to the utility model are only schematically shown in each drawing, and they do not represent the actual structure of the product. In addition, to make the drawings concise and easy to understand, in some drawings, only one of the components having the same structure or function is schematically shown, or only one of them is marked.

Herein, "a" not only means "only one", but also means "more than one". In this document, "first", "second" and so on are only used to distinguish each other, but not to indicate their importance, order and the like.

Herein, "equal", "identical" and the like are not strictly restricted in the sense of mathematics and/or geometry, but also include errors understandable by those skilled in the art and allowed in manufacture or use.

FIG. 1 is a schematic structural view illustrating an exemplary embodiment of a driving mechanism of a switching device. As shown in the figure, the driving mechanism of the switching device includes a driving shaft 10 , a sliding member 20 and an elastic driving assembly 40 .

Wherein, the driving shaft 10 is arranged in the switching device, and the driving shaft 10 can be driven to rotate by an operating handle or a driving motor so as to switch the electrical connection between the movable contact and the fixed contact. During the rotation process of the drive shaft 10, a disconnection position and a test position are provided. When the driving shaft 10 is in the disconnected position, the movable contact is separated from the fixed contact; when the driving shaft 10 is in the testing position, the switching device can realize the function test. There is a first drive part 12 and a second drive part 14 in the circumferential direction of the drive shaft 10 . In an exemplary embodiment of the driving mechanism of the switching device, the first driving part 12 and the second driving part 14 are respectively two protrusions extending along the radial direction of the driving shaft 10 .

The sliding member 20 can be driven by the rotation of the drive shaft 10 between the testing position and the disconnecting position, and move along the sliding direction indicated by the arrow in the figure. The slider 20 has a first limiting portion 22 , a second limiting portion 24 and a transmission portion 26 . When the driving shaft 10 is in the disconnected position, the first driving part 12 can be connected to the first limiting part 22 , and the second driving part 14 can be connected to the transmission part 26 . When the driving shaft 10 is at the testing position, the first driving part 12 can be in contact with the first limiting part 22 and the second limiting part 24 . In an exemplary embodiment of the driving mechanism of the switching device, the first limiting portion 22 is a protrusion extending toward the driving shaft 10 . The protrusion of the first limiting portion 22 has a first sliding end surface 222 , a second sliding end surface 224 and a top protrusion 226 , and the top protrusion 226 is connected to the first sliding end surface 222 and the second sliding end surface 224 respectively. When the drive shaft 10 rotates from the disconnected position or the test position to the test position or the disconnected position, the protrusion of the first driving part 12 can slide along the contour line of the first limit part 22, that is, along the contour of the first sliding end surface. 222 , the second sliding end surface 224 and the protrusion 226 constitute the contour line of the first limiting portion 22 to slide.

The elastic driving assembly 40 can generate a restoring force that acts on the sliding member 20 and is opposite to the sliding direction shown by the arrow in the figure. Referring to FIG. 1 and FIG. 2 , in an exemplary embodiment of the driving mechanism of the switching device, the elastic driving assembly 40 includes a frame 46 , an elastic member 42 , a connecting member 48 and a transmission member 44 . Wherein, the elastic member 42 , the connecting member 48 and the transmission member 44 are arranged in the frame 46 . One end of the elastic member 42 abuts against the frame 46 , and the other end abuts against an end surface of the connecting member 48 facing the elastic member 42 . The transmission member 44 has a contact end 442 and a transmission end 444 , the contact end 442 can be in contact with an end of the connecting member 48 facing the transmission member 44 , and the transmission end 44 is connected to the sliding member 20 .

2 to 7 are used to illustrate the movement process of the driving mechanism of the switching device in FIG. 1 . As shown in Fig. 2 and Fig. 3, Fig. 3 is a view along the direction indicated by arrow A in Fig. 2 . At this time, the switching device is in the disconnected position, the protrusion of the first driving part 12 abuts against the first sliding end surface 222 of the first limiting part 22, and the protrusion of the second driving part 14 abuts against the transmission part 26 superior. As shown in Figure 3, the drive shaft 10 is limited to the disconnected position in the figure, if the drive shaft 10 rotates counterclockwise, the protrusion of the second drive part 14 will drive the slider 20 to move in the direction shown by the arrow in the figure, and slide Part 20 pushes the transmission member 44 of the elastic driving assembly 40 to rotate so that the elastic member 42 is compressed, and the deformation of the elastic member 42 causes the elastic driving assembly 40 to generate a restoring force to act on the sliding member 20. The direction of this restoring force is consistent with the movement of the sliding member 20 In the opposite direction, if the drive shaft 10 wants to rotate counterclockwise, it must overcome this restoring force, thereby limiting the free rotation of the drive shaft 10 counterclockwise. If the drive shaft 10 rotates clockwise, the protrusion of the first drive part 12 will push the first limit part 22, thereby driving the slider 20 to move in the direction shown by the arrow in the figure, and the slider 20 pushes the transmission of the elastic drive assembly 40 The rotation of the member 44 makes the elastic member 42 compress, and the deformation of the elastic member 42 causes the elastic driving assembly 40 to generate a restoring force to act on the sliding member 20. The direction of this restoring force is opposite to the direction of motion of the sliding member 20. Clockwise rotation has to overcome this restoring force, thereby restricting the free clockwise rotation of the drive shaft 10 .

When the driving shaft 10 needs to be switched from the disconnected position to the testing position, the protrusion of the first driving part 12 moves along the first sliding end surface 222 , thereby pushing the sliding block 20 to move in the direction indicated by the arrow in the figure. The sliding member 20 pushes the transmission member 44 of the elastic driving assembly 40 to rotate so that the elastic member 42 is compressed, and the deformation of the elastic member 42 makes the elastic driving assembly 40 generate a restoring force to act on the sliding member 20. The direction of this restoring force is the same as that of the sliding member 20. The direction of movement is opposite. The drive shaft 10 has sufficient driving force so that the protrusion of the first drive part 12 can push the first stopper 22 to overcome the restoring force, so that the drive shaft 10 continues to rotate toward the test position and the slider 20 continues to move along the arrow in FIG. movement in the direction shown. As shown in FIG. 4 and FIG. 5 , wherein FIG. 5 is a view along the direction indicated by arrow A in FIG. 4 . At this time, the protrusion of the first driving part 12 is in contact with the top protrusion 226 of the first limiting part 22 . When the protrusion of the first driving part 12 passes over the top protrusion 226, driven by the restoring force, the protrusion of the first driving part 12 quickly moves along the second sliding end surface 224, so that the driving shaft 10 rotates toward the testing position.

As shown in Fig. 6 and Fig. 7, Fig. 7 is a view along the direction indicated by arrow A in Fig. 6 . At this time, the switching device is in the testing position, and the protrusions of the first driving part 12 abut against the second sliding end surface 224 of the first limiting part 22 and the second limiting part 24 respectively. As shown in FIG. 7, the drive shaft 10 is constrained in the test position shown in the figure. Due to the limitation of the second limiting portion 24 , the driving shaft 10 cannot rotate clockwise. If the drive shaft 10 rotates counterclockwise, that is, it returns to the disconnected position, the protrusion of the first drive part 12 will push the first stopper 22, thereby driving the slider 20 to move in the direction shown by the arrow in the figure, and the slider 20 pushes the transmission member 44 of the elastic driving assembly 40 to rotate so that the elastic member 42 is compressed, and the deformation of the elastic member 42 causes the elastic driving assembly 40 to generate a restoring force to act on the sliding member 20. The direction of this restoring force is the same as the moving direction of the sliding member 20 On the contrary, if the drive shaft 10 wants to rotate counterclockwise, it must overcome this restoring force, thereby limiting the free counterclockwise rotation of the drive shaft 10 .

The rotation process of the drive shaft 10 from the test position to the disconnected position is opposite to the above process, and will not be repeated here. By adjusting the elastic restoring force of the elastic driving assembly and the height of the protrusion of the first driving part, the size of the rotational torque of the drive shaft from the disconnected position or the test position to the test position or the disconnected position can be adjusted.

Fig. 8 shows a schematic structural view of an exemplary embodiment of a switching device. As shown in the figure, the switching device includes a housing 50 and the above-mentioned driving mechanism disposed in the housing 50 . The drive shaft 10 passes through the slider 20 . The elastic driving assembly 40 is connected to one end of the slider 20 .

It should be understood that although this description is described according to various embodiments, not each embodiment only includes an independent technical solution, and this description of the description is only for clarity, and those skilled in the art should take the description as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

A series of detailed descriptions listed above are only specific descriptions for the feasible embodiments of the present utility model, and they are not intended to limit the scope of protection of the present utility model. Embodiments or changes, such as combination, division or repetition of features, should be included in the protection scope of the present utility model.

Claims (6)

1. the driving mechanism of switching device shifter, is characterized in that it comprises:

A driving shaft (10) that is arranged at rotationally described switching device shifter, it has armature contact open position and a test position for described switching device shifter functional test separated with fixed contact that makes described switching device shifter, and described driving shaft upwards has first drive division (12) and second drive division (14) its week;

A sliding part (20), the rotation of described driving shaft (10) can drive this sliding part (20) to move along a glide direction, and this sliding part has first limiting section (22), second limiting section (24) and a driving section (26); With

A flexible drive assembly (40) that can be connected in described sliding part (20), it can produce an elastic restoring force that acts on described sliding part (20) and hinder described sliding part (20) motion;

If described driving shaft (10) is in described open position, described the first drive division (12) is abutted against in described the first limiting section (22) and described the second drive division (14) and is abutted against in described driving section (26),

If described driving shaft (10) is in described test position, described the first drive division (12) is abutted against in described the first limiting section (22) and described the second limiting section (24),

If described driving shaft (10) is rotated to described test position by described open position, or, by described test position, to described open position, rotated, described the first drive division (12) can overcome the elastic restoring force of described elastic drive part (40) and promote described the first limiting section (22), to drive described sliding part (20) to move along described glide direction.

2. the driving mechanism of switching device shifter as claimed in claim 1, wherein said flexible drive assembly (40) comprising:

A framework (46);

An elastic component (42) that is arranged at described framework, its one end can be resisted against described framework (46);

A connector (48) that is arranged at described framework, the other end of described elastic component (42) can be resisted against described connector (48); With

A driving member (44) that is arranged at described framework, it has the contact jaw (442) and a driving end (444) that can be connected with described sliding part (20) that can contact with described connector (48).

3. the driving mechanism of switching device shifter as claimed in claim 1, wherein said the first drive division (12) and described the second drive division (14) are the projections of radially extending along described driving shaft (10).

4. the driving mechanism of switching device shifter as claimed in claim 1, wherein said the first limiting section (22) is a projection of extending towards described driving shaft (10), and when described driving shaft (10) is rotated to described test position by described open position, or while being rotated to described open position by described test position, described the first drive division (12) can slide along the outline line of described the first limiting section (22).

5. the driving mechanism of switching device shifter as claimed in claim 4, wherein said the first limiting section (22) has a first slip end face (222), second slip end face (224) and a top protruding (226) being connected with described the second slip end face with described the first slip end face.

6. switching device shifter, is characterized in that it comprises:

A casing (60); With

Driving mechanism as described in claim 1 to 5 any one, it is arranged at described casing (60).

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