CN219575427U - Yield mechanism and dual-power control mechanism - Google Patents

Abstract

The utility model provides a yielding mechanism and a dual-power control mechanism, and relates to the technical field of electric switches. The device comprises a yielding mechanism, wherein the yielding mechanism comprises a fixed shaft, a sliding shaft and a resetting piece, the fixed shaft and the sliding shaft are arranged between two turntables, sliding holes matched with the sliding shaft are formed in the two turntables, and the resetting piece is arranged on the sliding shaft and used for driving the sliding shaft to reset after yielding in the sliding holes. When the sliding shaft is subjected to the acting force of the supporting arm connected with the electromagnet, the sliding shaft slides in the sliding hole so as to avoid the supporting arm, so that the supporting arm continuously moves downwards, and when the supporting arm connected with the electromagnet is reset, the sliding shaft can be reset in the sliding hole due to the existence of the reset piece, so that the supporting arm of the electromagnet drives the turntable to rotate when being pressed downwards again, and the sliding shaft, the sliding hole and the reset piece are matched, so that the interference on the supporting arm is avoided, and the defect that the rotation of the turntable is influenced is overcome.

Description

Yield mechanism and dual-power control mechanism

Technical Field

The utility model relates to the technical field of electrical switches, in particular to a yielding mechanism and a dual-power control mechanism.

Background

Important places such as high-rise buildings, communities, hospitals, airports, wharfs, fire-fighting places and the like are not allowed to be powered off, and in order to realize continuous power supply, the switching of a common power supply and a standby power supply is needed, and a double-power switch is needed. The double power supply change-over switch (called double power supply for short) mainly adopts a molded case circuit breaker (CB level) or a disconnecting switch (PC level) element. According to the specification of the national standard GB/T14048.11-2008, the method is divided into a CB level, a PC level and a CC level. As an executive component, the automatic controller with the singlechip as a core and the control mechanism with the base point linkage are a double-power transfer switch with perfect performance, safety, reliability, high automation degree and wide application range. The product is suitable for three-phase four-wire power grid systems with alternating current of 50Hz, rated working voltage of 690V and rated current of 800A and below, and can realize automatic switching between power supplies when one power supply fails.

At present, most of the dual power supply structures are driven by three electromagnets, the structure is complex, the control logic is complex, the operation and the maintenance are inconvenient, the utility model patent with the application number of CN202121039508.4 discloses a dual power supply control mechanism and a dual power supply switch thereof, and the utility model patent introduces the dual power supply control mechanism in detail.

However, when the support arm connected with the electromagnet in the dual-power control mechanism is pressed down to drive the turntable to rotate, the support arm is easy to interfere with the turntable connecting shaft, and the support arm cannot be pressed down well (the support arm is easy to generate a clamping phenomenon), so that the rotation of the turntable is influenced, the rotation of a rotating shaft positioned at the center of the turntable is further influenced, and the starting and closing of the dual-power switch are further influenced.

Disclosure of Invention

Therefore, one of the purposes of the present utility model is to provide a yielding mechanism, which solves the technical problems that in the prior art, when a support arm connected with an electromagnet is pressed down, the support arm is easily interfered by a connecting shaft of a turntable, and a clamping phenomenon occurs, which affects the rotation of the turntable, and further affects the starting and closing of a dual power switch.

The second object of the present utility model is to provide a dual power control mechanism.

In order to achieve one of the above purposes, the utility model provides a yielding mechanism, which comprises a fixed shaft, a sliding shaft and a resetting piece, wherein the fixed shaft and the sliding shaft are arranged between two turntables, sliding holes matched with the sliding shaft are respectively arranged on the two turntables, and the resetting piece is arranged on the sliding shaft and is used for driving the sliding shaft to reset after yielding in the sliding holes.

According to an alternative embodiment, the restoring element is designed as a restoring torsion spring.

According to an alternative embodiment, the sliding shafts comprise two, one end of the reset torsion spring is arranged on one sliding shaft, and the other end of the reset torsion spring is arranged on the other sliding shaft.

According to an alternative embodiment, one end of the reset torsion spring is inserted into or sleeved on the sliding shaft, and the other end of the reset torsion spring is inserted into or sleeved on the sliding shaft.

According to an alternative embodiment, the number of sliding holes on each turntable corresponds to the number of sliding shafts, which are inserted vertically into the sliding holes.

According to an alternative embodiment, two of said sliding holes are arranged adjacent to each other and close to the edge of said turntable.

According to an alternative embodiment, the sliding hole is provided with an arc shape.

According to an alternative embodiment, the fixed shafts comprise two fixed shafts, and the tail end of each fixed shaft is respectively arranged on the two turntables.

According to an alternative embodiment, the fixed shaft and the sliding shaft are mounted on opposite sides of the turntable.

In order to achieve the second objective, the present utility model provides a dual power control mechanism, which includes any one of the above yielding mechanisms.

The yielding mechanism and the dual-power control mechanism provided by the utility model have the following technical effects:

the utility model relates to a yielding mechanism, which mainly comprises a fixed shaft, a sliding shaft and a resetting piece, wherein the fixed shaft and the sliding shaft are arranged between two turntables, sliding holes matched with the sliding shaft are formed in the two turntables, the resetting piece is arranged on the sliding shaft and is used for driving the sliding shaft to reset after yielding in the sliding holes.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a perspective view of the internal structure of a dual power control mechanism according to an embodiment of the present utility model;

FIG. 2 is a front view of the internal structure of the dual power control mechanism of FIG. 1;

FIG. 3 is a perspective view of another internal structure of the dual power control mechanism of FIG. 1;

FIG. 4 is a schematic diagram of a yielding mechanism according to an embodiment of the utility model.

Wherein, fig. 1-4:

1. a yielding mechanism; 11. a sliding shaft; 12. a fixed shaft; 13. a reset torsion spring; 2. a drive shaft; 3. a turntable; 31. a sliding hole; 4. an electromagnet; 5. and a support arm.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, based on the examples herein, which are within the scope of the utility model as defined by the claims, will be within the scope of the utility model as defined by the claims.

Referring to fig. 1-4, a schematic structural diagram of a dual power control mechanism according to an embodiment of the present utility model is shown, where the dual power control mechanism refers to a control mechanism capable of controlling a dual power switch.

The control mechanism of the dual power switch of the embodiment comprises a yielding mechanism.

The yielding mechanism 1 is further described below.

Referring to fig. 4, the yielding mechanism 1 of the present embodiment includes a fixed shaft 12, a sliding shaft 11, and a reset member, where the reset member is preferably a reset torsion spring 13, where the fixed shaft 12 and the sliding shaft 11 are disposed between two turntables 3 and are used for connecting the two turntables 3, the middle of the turntables 3 is a driving shaft 2, the driving shaft 2 is used for connecting the turntables 3 and other structures of the control mechanism of the dual power switch, that is, the supporting arm 5 of the electromagnet 4 drives the turntables 3 to rotate, the turntables 3 drives the driving shaft 2 to rotate, and the driving shaft 2 rotates to realize opening and closing of the dual power switch.

Wherein, fixed axle 12 and sliding shaft 11 are located between two turntables 3, and here fixed axle 12 and sliding shaft 11 are used for connecting two turntables 3, can make two turntables 3 connect, but still can keep certain interval simultaneously, and fixed axle 12 and sliding shaft 11 all include two, all are close to the edge of turntables 3, and the end of every fixed axle 12 is installed respectively on two turntables 3, and fixed axle 12 and sliding shaft 11 are installed on the opposite both sides on turntables 3, see the fig. 3 and show.

Referring to fig. 1 and 2, two turntables 3 are provided with sliding holes 31, each turntable 3 is provided with two sliding holes 31, the sliding holes 31 are preferably arc-shaped and close to the edges of the turntables 3, the sliding holes 31 are matched with the sliding shafts 11, namely, the sliding shafts 11 are vertically and simultaneously inserted into the sliding holes 31 of the two turntables 3, and can slide in the sliding holes 31 under the driving of external force, and a reset torsion spring 13 is arranged on the sliding shafts 11 and is used for driving the reset of the sliding shafts 11 after the yielding in the sliding holes 31.

Specifically, one end of the return torsion spring 13 is disposed on one sliding shaft 11, and the other end of the return torsion spring 13 is disposed on the other sliding shaft 11, where the end of the return torsion spring 13 is inserted into or sleeved on the sliding shaft 11.

The connection mode of the tail end of the reset torsion spring 13 and the sliding shaft 11 is not limited, and the elastic force of the reset torsion spring 13 can drive the sliding shaft 11 to slide in the sliding hole 31, so long as the connection mode is within the protection scope of the utility model.

The yielding mechanism 1 can effectively avoid interference, and can ensure normal reset and effective action of the mechanism again after reset.

The specific process comprises the following steps:

referring to fig. 1 and 2, when the supporting arm 5 of the electromagnet 4 is pressed down, the sliding shaft 11 can avoid interference with the supporting arm 5, and when the supporting arm 5 is lifted up, the sliding shaft 11 can rebound to the original position due to the action of the reset torsion spring 13, so that the supporting arm 5 of the electromagnet 4 drives the turntable 3 to rotate when being pressed down again. At this time, the mechanism is in a common closing state, the electromagnet 4 automatically rebounds after being pressed down, at this time, the mechanism is divided into two parts again after the right electromagnet 4 is attracted once, and the mechanism is in a standby closing state if the mechanism is attracted once again.

In the description of the present utility model, it is to be noted that, unless otherwise indicated, the meaning of "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model can be understood as appropriate by those of ordinary skill in the art.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims (10)

1. The utility model provides a mechanism of stepping down, its characterized in that includes fixed axle, sliding shaft and piece that resets, the fixed axle with the sliding shaft is located between two turntables, two all be equipped with on the turntables with the sliding hole of sliding shaft adaptation, the piece that resets is located on the sliding shaft, be used for the drive the sliding shaft is in reset after stepping down in the sliding hole.

2. The yield mechanism of claim 1, wherein the return member is provided as a return torsion spring.

3. The yield mechanism of claim 2, wherein the sliding shafts comprise two, one end of the return torsion spring is disposed on one of the sliding shafts, and the other end of the return torsion spring is disposed on the other sliding shaft.

4. A yielding mechanism according to claim 3, wherein one end of the return torsion spring is inserted into or sleeved on the sliding shaft and the other end of the return torsion spring is inserted into or sleeved on the sliding shaft.

5. A yielding mechanism according to claim 3, wherein the number of sliding holes on each turntable corresponds to the number of sliding shafts, which sliding shafts are inserted vertically into the sliding holes.

6. The yield mechanism of claim 5, wherein two of the slide holes are disposed adjacent to one another and near an edge of the turntable.

7. The yield mechanism of claim 6, wherein the sliding aperture is arcuate.

8. The yielding mechanism according to claim 2, wherein said fixed shafts comprise two, and wherein each of said fixed shafts is mounted at its distal end on two of said turntables, respectively.

9. The yield mechanism of claim 8, wherein the fixed shaft and the sliding shaft are mounted on opposite sides of the turntable.

10. A dual power control mechanism comprising a yielding mechanism as claimed in any one of claims 1 to 9.