CN215644279U - Counting device, circuit breaker and switchgear - Google Patents

Abstract

The utility model provides a counting device, a circuit breaker and switch equipment, wherein the counting device comprises a counter body, and the counting device also comprises: the counting arm is connected with the counter body in a swinging manner; the driving part is used for driving the counting arm to swing under the driving action of the external force driving part or driving the driving part to reset under the action of self gravity. By adopting the technical scheme provided by the utility model, the technical problem that the counting device in the prior art is complex in structure can be solved.

Description

Counting device, circuit breaker and switchgear

Technical Field

The utility model relates to the technical field of circuit breakers, in particular to a counting device, a circuit breaker and a switch device.

Background

Currently, a vacuum circuit breaker in the prior art generally includes a counter device, and the counter device mostly uses a spring or a link to pull a crank arm of a counter so as to make the crank arm reach a certain angle, so as to implement a counting process of the counter. Generally, in a vacuum circuit breaker, a transmission structure for driving a crank arm of a counter to move mostly adopts the matching of multiple groups of parts, and the number of parts to be used is large, so that the structure of a counting device in the prior art is complex.

However, the number of operations in the mechanism is increased, problems such as operation jamming and failure may occur, a large space is occupied in the mechanism, and the production cost is high.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a counting device, a circuit breaker and switch equipment, which are used for solving the technical problem that the counting device in the prior art is complex in structure.

In order to achieve the above object, according to one aspect of the present invention, there is provided a counting device including a counter body, the counting device further including: the counting arm is connected with the counter body in a swinging manner; the driving part is used for driving the counting arm to swing under the driving action of the external force driving part or driving the driving part to reset under the action of self gravity.

Further, the counting arm is detachably connected with the transmission piece; or the counting arm and the transmission piece are of an integrally formed structure.

Further, be provided with the mounting groove on the count arm, the driving medium is installed in the mounting groove.

Further, the driving medium is the bar shaped plate, and the one end and the count arm of bar shaped plate are connected, and the other end of bar shaped plate is used for cooperating with external force drive part.

Further, the transmission member is a bent plate or a straight plate.

Furthermore, the transmission part comprises a first plate body and a second plate body which are spliced with each other, one end of the first plate body, which is far away from the second plate body, is connected with the counting arm, and one end of the second plate body, which is far away from the first plate body, is used for being matched with the external force driving part; wherein, an avoiding space is formed between the first plate body and the second plate body.

Further, first plate body and second plate body distribute along the extending direction of perpendicular to count arm, dodge the space including first groove and the second groove of dodging, first groove of dodging sets up towards the counter body, and the second dodges the groove and sets up towards the external force driver part.

According to another aspect of the present invention, there is provided a circuit breaker including: the counting device is the provided counting device; and the closing driving part is used for driving a transmission part of the counting device to move.

According to another aspect of the present invention, there is provided a switching apparatus including: the transmission part is used for being connected with the to-be-driven part; the closing driving part is movably arranged; the transmission part is provided with a connecting end and a driving end which are arranged at intervals, the connecting end is connected with the to-be-driven part, and the driving end is used for being connected with or separated from the switching-on driving part, so that the transmission part drives the to-be-driven part to move under the driving action of the switching-on driving part or drives the transmission part to reset under the action of self gravity.

Further, the closing driving part includes: a rotating cam rotatably provided; the rotary cam comprises a body part and a flange part, wherein the flange part protrudes out of the body part, and the flange part is used for driving the transmission part to move.

Further, the closing driving part includes: the rotary cam is rotatably arranged and comprises a body part and a flange part, and the flange part is arranged by protruding out of the body part; the runner rotationally sets up on flange portion, and the rotating part of runner is used for driving the driving medium motion.

By applying the technical scheme of the utility model, the counting arm can drive the machine core in the counter body to carry out counting operation through the matching of the driving component and the transmission piece, and the transmission piece and the counting arm can be restored to the initial positions under the combined action of the self gravity of the transmission piece and the internal reset torsion of the machine core in the counter body after the counting process is finished. The counting device is simple in structure and reliable in function.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:

fig. 1 is a schematic structural diagram of a counting device according to an embodiment of the present invention;

FIG. 2 illustrates a front view of a counting device provided in accordance with an embodiment of the present invention;

FIG. 3 illustrates a schematic view of a drive and a counter arm provided in accordance with an embodiment of the present invention in an initial position;

fig. 4 shows a schematic structural diagram of a transmission member of a counting device provided according to an embodiment of the present invention, which is about to switch from a first motion state to a second motion state.

Wherein the figures include the following reference numerals:

10. a counter body; 20. a counting arm; 30. a transmission member; 31. a first plate body; 32. a second plate body; 40. a closing drive part; 41. an energy storage shaft; 42. rotating the cam; 421. a body portion; 422. a flange portion; 43. a rotating wheel; 50. a fixed mount; 60. and fixing the screw.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

Example one

As shown in fig. 1 to 4, the present invention provides a counting device including a counter body 10. The counting device in the embodiment further comprises a counting arm 20 and a transmission piece 30, wherein the counting arm 20 is connected with the counter body 10 in a swinging mode so as to complete the counting operation in the movement process of the counting arm 20. The transmission member 30 has a connection end and a driving end arranged at an interval, the connection end is connected with the counting arm 20, and the driving end is used for being connected with or separated from an external force driving part, so that the transmission member 30 drives the counting arm 20 to swing under the driving action of the external force driving part or the transmission member 30 drives the counting arm 20 to reset under the action of self gravity. In particular, the counting device in the present embodiment may be used in a circuit breaker. When the counting device is applied to a circuit breaker, a closing driving part 40 (the closing driving part 40 is used for performing a closing operation) in the circuit breaker is an external driving part, and can be driven by the closing driving part 40 (the closing driving part 40 may include a structure such as an energy storage shaft 41, a rotating cam 42, and a rotating wheel 43), so as to perform a counting operation during closing.

Adopt this counting assembly, through installation driving medium 30 on count arm 20, driving medium 30 drives driving medium 30 motion under the exogenic action of external force drive part, so that driving medium 30 drives count arm 20 and rotates, can drive the core in the counter body 10 rather than the locking after count arm 20 rotates to certain angle and begin the count, along with the continuous motion of external force drive part, count arm 20 drives the core in the counter body 10 and accomplishes a count process, move to break away from with driving medium 30 until external force drive part. When external force drive part and driving medium 30 break away from, driving medium 30 receives to make driving medium 30 and count arm 20 all resume to initial position under the effect of the inside torsion that resets of the core in self gravity and the counter body 10, need not the external force effect and can let the core in the counter body 10 reset. Therefore, the counting device provided by the embodiment can solve the technical problem that the counting device in the prior art is complex in structure.

In the present embodiment, it can be understood that the transmission member 30 has a first motion state and a second motion state, when the transmission member 30 is in the first motion state, the transmission member 30 drives the counting arm 20 to move under the action of the external force to complete the counting operation; when the transmission member 30 is in the second motion state, the transmission member 30 is disengaged from the external force driving part, so as to drive the counting arm 20 to reset under the gravity of the transmission member 30.

In particular, the counting arm 20 can be detachably connected to the transmission member 30 for easy mounting and dismounting.

Alternatively, the counting arm 20 and the transmission member 30 may be integrally formed to facilitate manufacturing and installation. When the counting arm 20 and the transmission member 30 are integrally formed, the length of the integral structure formed by the counting arm 20 and the transmission member 30 should be long enough to ensure the stability of the driving and the arm of force with enough gravity to reset.

Preferably, a mounting groove may be provided on the counting arm 20, in which the transmission member 30 is mounted. By adopting the structure, the convenience of installation can be improved conveniently. Specifically, the transmission member 30 has a connecting end and a driving end which are arranged oppositely, the connecting end is installed in the installation groove, the driving end extends out of the installation groove, and the driving end is used for being matched with an external force driving part in a driving mode. Preferably, a fastener is further inserted into the counting arm 20 and the connecting end after the connecting end is installed in the installation groove, so as to improve the stability of the connection, wherein the fastener may be a fixing screw 60.

Specifically, the transmission member 30 in this embodiment may be a transmission plate, and a plate surface of the transmission plate is used for contacting with the external force driving component. By adopting the structure, the contact area between the external force driving part and the transmission part 30 can be increased conveniently, so that the stability of the driving action of the external force driving part on the transmission part 30 is improved.

In this embodiment, the transmission member 30 may be a strip-shaped plate, one end of the strip-shaped plate is connected to the counting arm 20, and the other end of the strip-shaped plate is used for being matched with the external force driving component. By adopting the structure, the structure is simple, and the production, the manufacture and the installation are convenient.

Alternatively, the driving member 30 in this embodiment is a bent plate or a straight plate, which is simple in structure and convenient to manufacture and install. Specifically, the bending plate may have a strip structure.

Preferably, the transmission member 30 in this embodiment includes a first plate 31 and a second plate 32 that are spliced together, wherein an end of the first plate 31 away from the second plate 32 is connected to the counting arm 20, and an end of the second plate 32 away from the first plate 31 is used for cooperating with an external force driving component. Wherein, an avoidance space is formed between the first plate 31 and the second plate 32. By adopting the structure, the avoidance space formed by splicing the first plate body 31 and the second plate body 32 in a staggered manner can be used for avoiding other parts, so that the overall structure layout is facilitated, and the structural stability is improved.

Specifically, the first plate 31 and the second plate 32 are distributed along the extending direction perpendicular to the counting arm 20, the avoiding space includes a first avoiding groove and a second avoiding groove, the first avoiding groove is arranged toward the counter body 10, and the second avoiding groove is arranged toward the external force driving component. By adopting the structure, other parts can be avoided conveniently through the first avoidance groove and the second avoidance groove, so that the transmission member 30 can move smoothly, and the optimization of the structural layout is facilitated.

Example two

The utility model provides a circuit breaker, which comprises a counting device and a closing driving part 40, wherein the counting device is the counting device provided in the first embodiment. The closing driving part 40 is used for driving the transmission part 30 of the counting device to move, and the closing driving part 40 is an external force driving part for driving the transmission part 30 to move. With the structure, the closing driving part 40 is an existing structure inside the circuit breaker, so that the counting device can be smoothly driven to perform counting operation when the closing driving part 40 performs closing operation. The circuit breaker in this embodiment's inner structure is simple, and the effect is reliable, has reduced manufacturing cost.

Specifically, the closing driving part 40 in this embodiment includes an energy storage shaft 41 and a rotating cam 42, the energy storage shaft 41 is rotatably disposed, and the rotating cam 42 is disposed on the energy storage shaft 41, so that the energy storage shaft 41 drives the rotating cam 42 to rotate. The energy storage shaft 41 and the rotating cam 42 are related parts during closing operation, and the counting operation during closing operation can be facilitated by adopting the above-mentioned structure.

Specifically, the energy storage shaft 41 drives the rotating cam 42 to rotate, when the rotating cam 42 rotates to make at least a part of the rotating cam 42 (for example, an outer edge or a convex portion of the rotating cam 42) contact with the transmission member 30, the rotating cam 42 pushes the transmission member 30 to move, so that the transmission member 30 is in a first moving state and drives the counting arm 20 to rotate, when the counting arm 20 rotates to a certain angle, the counting arm 20 drives the movement locked with the counting arm to start counting, and along with the continuous rotation of the rotating cam 42, the counting arm 20 drives the movement in the counter body 10 to complete a counting process until the rotating cam 42 rotates to be separated from the transmission member 30. When the rotating cam 42 is disengaged from the transmission member 30, the transmission member 30 is in the second motion state, and both the transmission member 30 and the counter arm 20 perform the reset motion to return to the initial position.

In this embodiment, the rotating cam 42 includes a main body 421 and a flange 422, the flange 422 is an arc structure, and the flange 422 is protruded from the main body 421, so that the flange 422 can be conveniently contacted with the transmission member 30, so that the flange 422 drives the transmission member 30 to move. With such a structural arrangement, it is possible to facilitate the movement of the rotating cam 42 to a position in contact with the transmission member 30 or the movement of the rotating cam 42 to a position separated from the transmission member 30. Specifically, through setting up flange portion 422 into the arc structure for flange portion 422's outer fringe is the arc outer fringe, can be convenient for drive driving medium 30 motion smoothly through arc outer fringe and the contact of driving medium 30. The construction of the present embodiment also provides better reduction in wear to the transmission member 30 than angular rim constructions. The body 421 in this embodiment is a ring structure.

EXAMPLE III

The present invention provides a circuit breaker, which is different from the circuit breaker of the second embodiment in the matching parts of the closing driving part 40 and the transmission part 30. The closing driving component 40 in this embodiment includes a rotating cam 42 and an energy storage shaft 41, and further includes a rotating wheel 43, and the energy storage shaft 41, the rotating cam 42 and the rotating wheel 43 are all existing components in the circuit breaker. The rotating wheel 43 is rotatably arranged on the rotating cam 42, and the outer edge of the rotating part of the rotating wheel 43 is used for driving the transmission member 30 to move. With such a structure, the rotating wheel 43 is rotatably arranged on the rotating cam 42, and the outer edge of the rotating part of the rotating wheel 43 is in contact with the transmission member 30, so that the friction on the transmission member 30 can be reduced, and the transmission member 30 can be more smoothly pushed to move under the combined action of the rotating cam 42 and the rotating wheel 43, so that the counting arm 20 can smoothly move to the counting position. In addition, in the counting process, through setting up runner 43, can make runner 43 stir the core in count arm 20 and the counter body 10 with the rotatory mode of slow rotation to avoid among the prior art to drive the impact damage that the rotatory mode of core brought the core in the counter body 10 through the circuit breaker divide-shut brake process fast. Therefore, in the counting device in the embodiment, in the counting process, the movement in the counter body 10 is rarely damaged by external force, and the service life of the counting device is greatly prolonged.

With the circuit breaker in this embodiment, during the energy storage process of the circuit breaker, the energy storage shaft 41 will drive the rotating cam 42 and the rotating wheel 43 installed on the rotating cam 42 to rotate together and push the transmission member 30 to move, so as to drive the counting arm 20 to rotate through the transmission member 30, and thus the transmission member 30 and the counting arm 20 rotate in the clockwise direction. After the counting arm 20 rotates to a certain angle, the counting arm can drive the movement in the counter body 10 locked with the counting arm to start counting, and along with the continuous rotation of the rotating part, a counting process is completed in the counter body 10 until the rotating wheel 43 rotates to be separated from the transmission part 30, and the transmission part 30 is restored to the initial position under the action of the self gravity and the internal resetting torque of the movement of the counter body 10 so as to be ready for counting next time.

In this embodiment, the rotating cam 42 includes a body 421 and a flange 422, the flange 422 is disposed to protrude from the body 421, and the runner 43 is rotatably disposed on the flange 422. With this arrangement, it is possible to facilitate the transmission member 30 to be smoothly switched between the first movement state and the second movement state by the rotation action of the rotating cam 42. Specifically, the body 421 in this embodiment is a ring structure, and the flange 422 is an arc structure.

As shown in fig. 3, the transmission member 30 in the present embodiment is in the first motion state, and the rotating wheel 43 contacts with the transmission member 30 and drives the counting arm 20 to rotate through the transmission member 30, so that the transmission member 30 and the counting arm 20 rotate in the clockwise direction. After the counting arm 20 rotates to a certain angle, a counting process can be completed until the rotating wheel 43 rotates to a position separated from the transmission member 30 (as shown in fig. 4, that is, the transmission member 30 is in the second motion state), and then, the rotating wheel can be restored to the initial position (as shown in fig. 3) under the combined action of the gravity of the transmission member 30 and the internal reset torque of the counter body 10 for the next counting.

In this embodiment, when the transmission member 30 is formed by splicing a first plate 31 and a second plate 32, an end of the second plate 32 away from the first plate 31 is used for contacting the rotating wheel 43. Preferably, the face of the second plate 32 is adapted to contact the wheel 43.

In the second and third embodiments, the counter body 10 is fixed to the frame of the internal operating mechanism of the circuit breaker by the fixing frame 50 and the fixing screw 60, and the energy storage shaft 41 is the energy storage shaft 41 of the internal spring operating mechanism of the circuit breaker. The closing driving component 40, the counter body 10 and the counting arm 20 in the counting device in the above embodiment may all be essential components for other functions in the circuit breaker, wherein the rotating cam 42 is an essential component for realizing the closing movement of the circuit breaker, and the rotating wheel 43 is an essential component for maintaining the energy storage function of the circuit breaker. The counting operation of the counting arm 20 is realized by the transmission of the transmission piece 30 only by adding the transmission piece 30, and the resetting movement of the counting arm 20 is realized by the gravity resetting action of the transmission piece 30. Like this, simple structure has reduced manufacturing cost, has reduced the occupation space of whole device, has also directly reduced the fault rate and the manufacturing cost of the transmission structure among the counting assembly.

Example four

The fourth embodiment of the present invention provides a switching apparatus, which includes a transmission member 30 and a closing driving part 40, wherein the transmission member 30 is used for being connected with a member to be driven. The closing driving part 40 is movably provided. The transmission member 30 has a connection end and a driving end which are arranged at intervals, the connection end is connected with the to-be-driven member, and the driving end is used for being connected with or separated from the closing driving part 40, so that the transmission member 30 drives the to-be-driven member to move under the driving action of the closing driving part 40 or drives the to-be-driven member to drive the counting arm 20 to reset under the action of self gravity.

Specifically, it can be understood that the transmission member 30 in the present embodiment has a first motion state and a second motion state, and when the transmission member 30 is in the first motion state, the transmission member 30 drives the member to be driven to move under the action of the closing driving part 40; when the transmission member 30 is in the second motion state, the transmission member 30 is separated from the closing driving part 40, so as to drive the to-be-driven member to reset under the action of the gravity of the transmission member 30.

By adopting the switching equipment provided by the embodiment, when the switching equipment is switched on, the switching-on driving part 40 moves, and after the switching-on driving part 40 moves to a position contacting with the transmission part 30, the transmission part 30 is in the first moving state, so that the transmission part 30 drives the to-be-driven part to move under the action of the switching-on driving part 40. With the continued movement of the closing driving part 40, the transmission member 30 will be switched from the first movement state to the second movement state, so that the transmission member 30 drives the to-be-driven member to return to the initial position under the action of gravity. Thus, the switch device in the embodiment has simple structure and reliable function.

In particular, the member to be actuated in this embodiment may be a counting arm 20 or other structure inside the switchgear.

In this embodiment, the closing driving part 40 may include a rotating cam 42, and the rotating cam 42 may be rotatably provided. The rotating cam 42 includes a main body 421 and a flange 422, the flange 422 is disposed to protrude from the main body 421, and the flange 422 is used to drive the transmission member 30 to move. With such a structural arrangement, when the transmission member 30 is in the first motion state, the flange portion 422 contacts with the transmission member 30 and drives the transmission member 30 to move; with the continuous rotation of the rotating cam 42, the transmission member 30 will be switched from the first motion state to the second motion state, and the transmission member 30 is separated from the flange portion 422, so that the transmission member 30 drives the member to be driven to return to the initial position under the action of gravity.

Alternatively, the closing driving unit 40 in this embodiment includes a rotating cam 42 and a turning wheel 43, the rotating cam 42 is rotatably disposed, the rotating cam 42 includes a body 421 and a flange portion 422, and the flange portion 422 is disposed to protrude from the body 421. The rotating wheel 43 is rotatably disposed on the flange portion 422, and the rotating portion of the rotating wheel 43 is used for driving the transmission member 30 to move. With the structure, when the transmission member 30 is in the first motion state, the outer edge of the rotating part of the rotating wheel 43 contacts with the transmission member 30 and drives the transmission member 30 to move; with the continuous rotation of the rotating cam 42, the transmission member 30 will be switched from the first motion state to the second motion state, and the transmission member 30 is separated from the rotating wheel 43, so that the transmission member 30 drives the member to be driven to return to the initial position under the action of gravity.

Specifically, the driving member to be driven in this embodiment may be a counting arm 20, and the counting arm 20 is rotatably disposed on the counter body 10, so that the transmission member 30 drives the counting arm 20 to perform the counting operation and the resetting movement. The transmission member 30 in this embodiment may be a transmission plate structure, and the transmission plate structure may be a strip plate structure.

Specifically, the transmission member 30 may include a first plate 31 and a second plate 32 that are spliced together, where an end of the first plate 31 away from the second plate 32 is used for being connected to a to-be-driven member, and an end of the second plate 32 away from the first plate 31 is used for being matched with the closing driving part 40. Wherein, an avoidance space is formed between the first plate 31 and the second plate 32. By adopting the structure, the avoidance space formed by splicing the first plate body 31 and the second plate body 32 in a staggered manner can be used for avoiding other parts, so that the overall structure layout is facilitated, and the structural stability is improved.

Preferably, the first plate 31 and the second plate 32 in this embodiment are both of a strip structure, the first plate 31 and the second plate 32 both extend along the same direction, the first plate 31 and the second plate 32 are distributed along the extending direction perpendicular to the first plate 31, the avoidance space includes a first avoidance groove and a second avoidance groove, the first avoidance groove is disposed toward the driving member to be driven, and the second avoidance groove is disposed toward the closing driving member 40. By adopting the structure, other parts can be avoided conveniently through the first avoidance groove and the second avoidance groove, so that the transmission member 30 can move smoothly, and the optimization of the structural layout is facilitated.

In this embodiment, the transmission member 30 and the member to be driven may be detachably disposed, so as to be easily disassembled. Alternatively, the transmission member 30 and the member to be driven are integrally formed to facilitate manufacturing.

Specifically, the switch device in this embodiment may be a load switch, an isolation switch, or the like.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects: only one transmission part is added on the existing structure, the structure is simple, the action is reliable, and the counting process is completed by utilizing the existing rotating cam and rotating wheel structure in the circuit breaker to drive the counting arm to perform counting operation through the transmission part; the rotation through the runner can drive this internal core of counter and carry out slow rotation at the counting in-process, and need not external force and can resume to initial angle, like this at whole counting in-process, the core does not receive impact damage.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. 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, further discussion thereof is not required in subsequent figures.

In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited.

The above description is only a preferred 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.

Claims (11)

1. A counting device comprising a counter body (10), characterized in that it further comprises:

a counting arm (20), wherein the counting arm (20) is connected with the counter body (10) in a swinging way;

the counting mechanism comprises a transmission piece (30), wherein the transmission piece (30) is provided with a connecting end and a driving end which are arranged at intervals, the connecting end is connected with the counting arm (20), and the driving end is used for being connected with or separated from an external force driving part, so that the transmission piece (30) drives the counting arm (20) to swing under the driving action of the external force driving part or drives the transmission piece (30) to reset the counting arm (20) under the action of self gravity.

2. Counting device according to claim 1, wherein the counting arm (20) is detachably connected to the transmission (30); or the counting arm (20) and the transmission piece (30) are of an integrally formed structure.

3. Counting device according to claim 1, wherein the counting arm (20) is provided with a mounting slot in which the transmission (30) is mounted.

4. Counting device according to any one of claims 1 to 3, wherein the transmission element (30) is a strip, one end of which is connected to the counting arm (20) and the other end of which is intended to cooperate with an external force-driven member.

5. Counting device according to any one of claims 1 to 3, wherein the transmission member (30) is a bent or straight plate.

6. Counting device according to any one of claims 1 to 3, wherein the transmission member (30) comprises a first plate (31) and a second plate (32) which are joined to each other, the end of the first plate (31) remote from the second plate (32) being connected to the counting arm (20), the end of the second plate (32) remote from the first plate (31) being intended to cooperate with an external drive means; wherein an avoidance space is formed between the first plate body (31) and the second plate body (32).

7. The counting device according to claim 6, characterized in that the first plate body (31) and the second plate body (32) are distributed perpendicular to the extension direction of the counting arm (20), the avoiding space comprises a first avoiding groove and a second avoiding groove, the first avoiding groove is arranged towards the counter body (10), and the second avoiding groove is arranged towards the external force driving part.

8. A circuit breaker, characterized in that the circuit breaker comprises:

a counting device according to any one of claims 1 to 7;

the closing driving part (40) is used for driving a transmission part (30) of the counting device to move.

9. A switchgear, characterized in that it comprises:

the transmission piece (30) is used for being connected with a to-be-driven piece;

a closing drive part (40), wherein the closing drive part (40) is movably arranged;

the transmission piece (30) is provided with a connecting end and a driving end which are arranged at intervals, the connecting end is connected with the to-be-driven piece, and the driving end is used for being connected with or separated from the switching-on driving part (40) so that the transmission piece (30) drives the to-be-driven piece to move under the driving action of the switching-on driving part (40) or the transmission piece (30) drives the to-be-driven piece to reset under the action of self gravity.

10. The switchgear device according to claim 9, characterized in that said closing drive means (40) comprise:

a rotating cam (42), the rotating cam (42) being rotatably provided; the rotating cam (42) comprises a body part (421) and a flange part (422), the flange part (422) protrudes out of the body part (421), and the flange part (422) is used for driving the transmission part (30) to move.

11. The switchgear device according to claim 9, characterized in that said closing drive means (40) comprise:

a rotating cam (42), wherein the rotating cam (42) is rotatably arranged, the rotating cam (42) comprises a body part (421) and a flange part (422), and the flange part (422) is arranged by protruding out of the body part (421);

the rotating wheel (43) is rotatably arranged on the flange part (422), and the rotating part of the rotating wheel (43) is used for driving the transmission piece (30) to move.

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