CN218160117U - Rotary switch operating mechanism - Google Patents

Abstract

The utility model discloses a rotary switch operating mechanism, wherein an energy storage component is arranged in an inner cavity of a fixed shell, a handle shaft of a knob handle component is inserted into the fixed shell, and a drive plate connected with the handle shaft synchronously rotates and is switched between a first operating position and a second operating position; the driving plate comprises a driving rod formed by extending along a first direction and two pressure rods formed by extending in a first surface; two side parts of the shifting lever are respectively abutted against two working ends of the energy storage spring so as to transmit the operating acting force to the energy storage spring to generate corresponding deformation; the two pressure levers are respectively arranged corresponding to the two groups of lock catches so as to respectively drive the corresponding lock catches to release the constructed rotation switching limit. This scheme can effectively improve the reliability and promote mechanical life through configuration optimization.

Description

Rotary switch operating mechanism

Technical Field

The utility model relates to a low-voltage apparatus technical field, concretely relates to rotary switch operating device.

Background

The rotary switch is used as an isolating switch, so that the safety requirement is high; generally, the operator of a rotary switch can be locked in an operating position corresponding to both the open and closed states. The structure is complex and the operation reliability is low due to the limitation of the existing structure.

In view of the above, it is desirable to optimize the design of the rotary switch operating mechanism to overcome the above technical drawbacks.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a rotary switch operating device can effectively improve reliability and promote mechanical life through configuration optimization.

The utility model provides a rotary switch operating mechanism, which comprises a fixed shell, an energy storage component and a knob handle component; the energy storage assembly is arranged in the inner cavity of the fixed shell and comprises a rotary disc, an energy storage spring and two latches, the rotary disc is used for outputting opening and closing driving force, the rotary disc can be switched between a first working position and a second working position in a rotating mode, the two latches can intermittently establish rotation switching limit of the rotary disc, and the energy storage spring can drive the rotary disc to perform corresponding rotation switching by releasing elastic deformation energy; the knob handle assembly comprises a knob handle, a handle shaft and a drive plate, wherein the knob handle is positioned outside the fixed shell, and the handle shaft is fixedly connected with the knob handle and extends along a first direction to be inserted into the fixed shell; the drive plate is connected with the handle shaft and can be synchronously rotated and switched between a first operation position and a second operation position along with the knob handle and the handle shaft; the drive plate comprises a driving rod formed by extending along a first direction and two pressure rods formed by extending in a first surface; two side parts of the shifting lever are respectively abutted against two working ends of the energy storage spring so as to transmit the operating acting force to the energy storage spring to generate corresponding deformation; the two pressure levers are respectively arranged corresponding to the two groups of lock catches so as to respectively drive the corresponding lock catches to release the constructed rotation switching limit; wherein the first direction intersects the first face.

Optionally, a draw-in groove has been seted up to the periphery wall of carousel, the hasp includes the hasp body and the elasticity piece that resets, the hasp body with fixed casing pin joint, the elasticity piece that resets sets up the hasp body with between the fixed casing, the lock lever part of the hasp body can be arranged in found in the draw-in groove correspondingly the rotation switches spacingly to the configuration is: under the drive of the corresponding pressure lever, the lock catch body can rotate to a release working position, and the lock rod part of the lock catch body is separated from the clamping groove; and the lock catch body which rotates to the working position releasing position can drive the corresponding elastic reset piece to generate corresponding deformation, and can release elastic deformation energy when the lock rod part and the clamping groove are centered, so as to drive the lock catch body to rotate to the limiting working position, and the lock rod part of the lock catch body is arranged in the clamping groove.

Optionally, the energy storage spring is a torsion spring, and a first cantilever and a second cantilever extend from two ends of a spring body of the torsion spring respectively to form two working ends respectively; the driving lever extends towards the rotary disc and is inserted between the first cantilever and the second cantilever which are circumferentially arranged at intervals, the rotary disc comprises a stand column which extends towards the driving disc and is formed, the stand column is located on the radial outer side of the driving lever, and the first cantilever and the second cantilever are respectively located on the two circumferential sides of the stand column and are configured as follows: when the shifting lever is pressed against the first cantilever clockwise or pressed against the second cantilever counterclockwise, the upright post can correspondingly construct the rotation limit of the second cantilever or the first cantilever, so that the torsion spring can be correspondingly deformed.

Optionally, in a projection plane passing through a rotation center of the turntable, the first cantilever and the second cantilever are arranged in a crossed manner, the extending ends of the first cantilever and the second cantilever respectively include limiting hooks formed by bending in opposite directions, the top of the upright column includes a boss extending radially outward, and the boss can form a limit for limiting the displacement of the limiting hooks along the first direction.

Optionally, the turntable further includes a convex ring, a torsion spring installation space is formed between the convex ring and the outer wall surface of the turntable, a spring body of the torsion spring is sleeved outside the convex ring, the outer wall surface has an opening, and the first cantilever and the second cantilever extend outwards through the opening.

Optionally, the elastic resetting piece is a spring piece, and the elastic resetting piece and the lock catch body are integrally formed or can be detachably and fixedly connected.

Optionally, the two latches are a first latch and a second latch, both of which are pivoted with the fixed shell through a rotating shaft, and the two pressing rods are a first pressing rod and a second pressing rod; the lock catch body of the first lock catch comprises a first contact surface matched with the first pressure rod, the lock catch body of the second lock catch comprises a second contact surface matched with the second pressure rod, and the lock catch body is configured as follows: when the knob handle is located at the first operation position, the lock rod part of the first lock catch is arranged in the clamp groove, and the lock rod part of the second lock catch abuts against the outer wall surface of the rotary disc; when the handle shaft at the first operation position drives the drive plate to rotate clockwise to a first preset position, the first pressure lever is pressed against the first contact surface and drives the corresponding lock catch body to rotate to the release working position; when the knob handle rotates to a second operation position, the lock rod part of the second lock catch is aligned with the clamping groove; when the knob handle is located at the second operation position, the lock rod part of the second lock catch is arranged in the clamp groove, and the lock rod part of the first lock catch abuts against the outer wall surface of the rotary disc; when the handle shaft at the second operation position drives the drive plate to rotate anticlockwise to a second preset position, the second pressure lever is pressed against the second contact surface and drives the corresponding lock catch body to rotate to the release working position; when the knob handle rotates to a first operation position, the lock rod part of the first lock catch is aligned with the clamping groove.

Optionally, the first contact surface and the second contact surface are both configured to: from the initial end to the tail end which are in pressing contact with the corresponding pressure rods, the corresponding contact surfaces are gradually changed slopes or cambered surfaces.

Optionally, the carousel still includes first boss face and second boss face, both certainly the outer wall of carousel radially outwards extends to form, just first boss face with second boss face circumference interval sets up, the last corresponding spacing portion of first spacing portion and the spacing portion of second that is provided with of fixed casing to the configuration is: when the knob handle rotates to a first operation position, the first boss surface and the first limiting part are circumferentially abutted and limited; when the knob handle rotates to a second operation position, the second boss surface is circumferentially abutted against and limited by the second limiting part.

Optionally, the body of the dial is a sheet structure, and the internal cavity of the fixed housing is enclosed by an outer cover body and a cover plate.

Aiming at the prior art, a new method is provided for the rotary switch operating mechanism with an optimized structure, and the mechanism can be simplified and is convenient to assemble on the basis of effectively improving the use reliability and the service life. Specifically, the energy storage assembly is arranged in the inner cavity of the fixed shell, the rotary disc for outputting opening and closing driving force can be switched between a first working position and a second working position in a rotating mode, the energy storage spring releases elastic deformation energy to drive the rotary disc to perform corresponding rotation switching, the rotation switching limit of the rotary disc is established intermittently through the two lock catches, and the structure is simple and reliable; meanwhile, a dial plate is fixedly arranged on a handle shaft of the knob handle assembly and can be switched between a first operation position and a second operation position through synchronous rotation along with the knob handle, and the dial plate comprises a dial rod formed by extending along a first direction and two pressure rods formed by extending in a first surface; the two sides of the shifting rod are respectively abutted against the two working ends of the energy storage spring, so that the operating acting force is transmitted to the energy storage spring to generate corresponding deformation based on the rotating direction of the handle, and elastic deformation energy capable of driving the turntable to rotate is stored; meanwhile, two pressure levers of the drive plate are respectively arranged corresponding to the two groups of lock catches so as to respectively drive the corresponding lock catches to release the constructed rotation switching limit, and corresponding operation is realized; in a specific application, the first working position and the second working position of the knob handle can be an open position, and the other one is a closed position.

Compared with the prior art, the fixed driver plate that sets up at handle epaxial is adopted to this scheme, and on the one hand, this driver plate realizes switching the effort with the work position with the cooperation of energy storage component and transmits to the carousel, and this driver plate has concurrently simultaneously and relieves the spacing function of hasp, compares in the mode that independently sets up the functional component respectively, and spare part quantity reduces, conveniently assembles. By applying the scheme, the process cost can be effectively reduced, the assembly precision of the product is improved, the reliability and the service life of the product can be improved, the size of the product in the height direction can be reduced, and a good technical guarantee is provided for the electricity utilization safety of a user on the whole.

In the alternative of the utility model, the lock catch body of each lock catch is pivoted and fixed on the shell, which is convenient for assembly operation; the clamping groove matched with the lock rod part of the lock catch body is formed in the peripheral wall of the rotary disc, and the elastic reset piece arranged between the lock catch body and the fixed shell body resets, so that the structure is further optimized, and the service life of a product is prolonged.

Drawings

Fig. 1 is a schematic view showing an overall structure of a rotary switch operating mechanism according to an embodiment;

FIG. 2 is an exploded assembly view of the rotary switch operating mechanism shown in FIG. 1;

FIG. 3 is a schematic diagram of the assembly relationship between the energy storage assembly and the turntable shown in FIG. 2;

FIG. 4 is a top view of FIG. 3;

FIG. 5 is a schematic diagram of an overall structure of the energy storage assembly according to an embodiment;

FIG. 6 is a schematic structural diagram of the turntable according to an embodiment;

FIG. 7 is a schematic structural view of the stored energy spring in accordance with an exemplary embodiment;

FIG. 8 is a schematic structural view of the first and second latches in accordance with an embodiment;

FIG. 9 is a schematic view of the knob handle in a first operating position;

FIG. 10 is a schematic view showing the mating relationship of the dials when the knob handle is in a first predetermined position;

FIG. 11 is a schematic view showing the positional relationship of the catch and the catch when the knob handle is in the first predetermined position;

FIG. 12 is a schematic view of the knob handle in a second operating position;

fig. 13 is a schematic view showing the fitting relationship of the dial when the knob handle is located at the second predetermined position.

In the figure:

a knob handle assembly 10, a knob handle 11, a handle shaft 12, a drive plate 13, a deflector rod 131, a first pressure rod 132 and a second pressure rod 132';

the energy storage assembly 20, the turntable 21, the clamping groove 211, the upright column 212, the first boss surface 213, the second boss surface 213', the convex ring 214, the outer wall surface 215, the opening 216, the boss 217, the torsion spring 22, the first cantilever 221, the first limit hook 222, the second cantilever 221', the second limit hook 222', the first latch 23, the first latch part 231, the first rotating shaft 232, the first contact surface 233, the first elastic reset part 234, the second latch 23', the second latch part 231', the second rotating shaft 232', the second contact surface 233', and the second elastic reset part 234';

the fixing housing 30, the outer cover 31, the cover plate 32, the first limiting portion 321, the second limiting portion 321', and the fastening connector 33.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the present invention is further described in detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 and 2, fig. 1 is a schematic view of an overall structure of a rotary switch operating mechanism according to the present embodiment, and fig. 2 is an exploded view of the rotary switch operating mechanism shown in fig. 1.

The rotary switch operating mechanism mainly comprises a knob handle assembly 10, an energy storage assembly 20 and a fixed housing 30.

The stationary housing 30 has an internal receiving cavity in which the energy storage assembly 20 and associated transmission components are disposed. In this scheme, fixed casing 30 includes the dustcoat body 31 and apron 32, and both enclose to close and form this inside chamber that holds. As shown in fig. 2, the outer cover 31 and the cover plate 32 are fastened by four fastening connectors 33; in a particular implementation, the fastening connection 33 may be a rivet, or may also be a threaded fastener.

It is understood that in other implementations, the fastening connector 33 may be a separate connector or a structural part on the outer cover 31. In addition, the fastening connection between the outer cover 31 and the cover plate 32 can be realized by other methods, not limited to the fastening connection body 33 shown in the figures, for example, but not limited to, the fastening connection body is assembled by a snap structure, so that the disassembly and assembly operations are facilitated.

The knob handle assembly 10 comprises a knob handle 11, a handle shaft 12 and a dial 13, wherein the knob handle 11, the handle shaft 12 and the dial 13 are positioned outside a fixed shell 30, one end of the handle shaft 12 is fixedly connected with the knob handle 11, and the other end of the handle shaft extends along a first direction X and is inserted into the fixed shell 30; the dial 13 is connected to the handle shaft 12 and can be switched between a first operation position and a second operation position as the knob handle 11 and the handle shaft 12 rotate synchronously. When the operator turns knob handle 11, a corresponding driving force is transmitted to the associated structure of energy storage assembly 20 through dial 13.

The energy storage assembly 20 comprises a rotary disc 21 for outputting opening and closing driving force, an energy storage spring (22) and two latches (a first latch 23 and a second latch 23'), wherein the rotary disc 21 can be rotationally switched between a first working position and a second working position. In a specific application, the first working position and the second working position of the rotating disc 21 may be an open position, and the other one may be a closed position.

Specifically, two lock clasps (a first lock clasp 23 and a second lock clasp 23') are circumferentially spaced and can intermittently establish a rotation switching limit of the turntable 13. Here, both the lock catches may constitute a rotation switching limit for the rotary plate 13, and when one forms the rotation switching limit for the rotary plate 13, the other does not constitute a limit, and vice versa; the intermittent construction means that the handle and the rotary switch are constructed in a non-sequential and non-continuous manner within the range of the rotary amplitude of the switching working position of the handle. In other words, after one of the two sets of rotational limits is established, the middle of the two sets of rotational limits has a transition section without rotational limits, and the other set of rotational limits is established again.

Energy storage spring 22 can drive rotary table 13 to carry out corresponding rotation switching by releasing elastic deformation, that is to say, the interval of rotation limiting is relieved at both lock catches, and energy storage spring 22 provides the acting force of rotary table 13 to another work position. In order to clearly describe the action mechanism of the manual operating mechanism, the embodiment takes the turning knob handle 11 shown in the figure as an example to be turned and switched between the 0 ° position (first working position, closed position) and the 90 ° position (second working position, open position), and is described in detail with reference to the drawings in the specification.

Please refer to fig. 3 and fig. 4 together, wherein fig. 3 is a schematic diagram illustrating an assembly relationship between the energy storage assembly 20 and the turntable 13, and fig. 4 is a top view of fig. 3. Wherein, the knob handle 11 can rotate clockwise from the 0 degree position to the 90 degree position and can rotate counterclockwise from the 90 degree position to the 0 degree position.

In this scheme, driver plate 13 includes that extend the depression bar that forms and two extend in first face along the driving lever 131 that first direction X formed: a first pressure bar 132 and a second pressure bar 132'; here, a first plane is defined to intersect with the first direction X, and as shown in fig. 2 and fig. 3, the first plane is a body plate surface of the dial 13, and the extending directions of the first pressing rod 132 and the second pressing rod 132' are substantially perpendicular to the extending direction of the shift lever 131. It will be understood that the intersection of the first plane with the first direction X is sufficient for the functional implementation of the dial 13, and is not limited to being perpendicular as shown in the figures.

The shift lever 131 is used for pushing the rotary disc 21 to rotate, and two side portions of the shift lever are respectively abutted to two working ends of the energy storage spring 22 so as to transmit an operating acting force to the energy storage spring 22 to generate corresponding deformation, that is, when the rotary disc 21 is in a rotation limiting state, the energy storage spring 22 deforms and stores energy in the rotation process of the knob handle 11; the two pressure levers are used for realizing the function of releasing the rotation limit of the turntable 21, wherein the first pressure lever 132 is arranged corresponding to the first latch 23, and the second pressure lever 132 'is arranged corresponding to the second latch 23' so as to respectively drive the rotation switching limit established by the corresponding latch release.

In the course of the work, driver plate 13 realizes switching the effort with the work position with the cooperation of energy storage component 20 and transmits to the carousel, and this driver plate has concurrently and relieves the spacing function of hasp simultaneously, and spare part quantity reduces, conveniently assembles. As shown in the figure, the body of the drive plate 13 is of a sheet structure, so that the manufacturability is better; of course, in other implementations, the body shape of the dial 13 may be determined according to the actual product design. On the whole, the process cost can be effectively reduced, the assembly precision of the product is improved, the reliability of the product is improved, and the service life of the product is prolonged.

Please refer to fig. 5, fig. 6 and fig. 7 together, wherein fig. 5 is a schematic structural diagram of the energy storage assembly in the present embodiment, fig. 6 is a schematic structural diagram of the turntable in the present embodiment, and fig. 7 is a schematic structural diagram of the energy storage spring in the present embodiment.

In this scheme, the energy storage spring is torsional spring 22, simple structure and the equipment of being convenient for. As shown in fig. 7, a first suspension arm 221 and a second suspension arm 221' extend from two ends of the spring body of the torsion spring 22 to form two working ends respectively; in other specific applications, the energy storage spring may also be in the form of a compression spring, or a plate spring or a rubber spring, and can also achieve the function of storing energy and transmitting the energy to the turntable 21.

Accordingly, the rotary plate 21 includes a protruding ring 214, a torsion spring mounting space is formed between the protruding ring 214 and an outer wall surface 215 of the rotary plate 21, a spring body of the torsion spring 22 is fitted on an outer side of the protruding ring 214, the outer wall surface has an opening 216, and the first and second suspension arms 221 and 221' are protruded outwardly through the opening 216. Meanwhile, the turntable 21 includes a column 212 formed to extend toward the dial 21, the column 212 is located radially outside the shift lever 131, and the first and second cantilevers 221 and 221' are located at both circumferential sides of the column 212, respectively.

After assembly, the handle shaft 12 is inserted into the central bore of the collar 214. The driving lever 131 of the driving plate 13 extends toward the rotary plate 21 and is inserted between the first cantilever 221 and the second cantilever 221' which are circumferentially spaced, as shown in fig. 3. When the knob handle 11 is operated clockwise, and the rotation of the rotary disc 21 is limited by the lock catch, the driving lever 131 on the driving disc 13 presses against the first cantilever 221 and drives the first cantilever 221 to synchronously rotate, and the second cantilever 221 'is kept still under the circumferential limiting action of the upright column 212, that is, the upright column 212 limits the second cantilever 221', and in this state, the torsion spring 22 deforms and stores energy; conversely, the knob handle 11 rotates counterclockwise, the driving lever 131 on the driving plate 13 presses against the second suspension arm 221' and drives it to rotate synchronously, the upright 212 limits the first suspension arm 221, and the torsion spring 22 deforms to store energy.

As shown in fig. 5 and 6, the outer peripheral wall of the rotary plate 21 is formed with a locking groove 211 for establishing the above-mentioned rotation limiting pair with the lock, i.e., at the initial stage of the handle operation, limiting the rotation of the rotary plate 21. Referring also to fig. 8, a schematic view of the first locking device 23 and the second locking device 23' is shown.

In this embodiment, the main bodies of the first latch 23 and the second latch 23 'are identical, and both include a latch body and an elastic reset member (a first elastic reset member 234 and a second elastic reset member 234'), the latch body of the first latch 23 is pivoted to the fixed housing 30 through a first rotating shaft 232, so that the first latch portion 231 is disposed in the latch groove 211 of the rotary table 21, and the rotation of the rotary table is switched to be limited, and the first latch portion 231 can be disengaged from the latch groove 211 along with the rotation of the latch body, so as to release the limitation. Similarly, the lock body of the second lock 23' is pivotally connected to the fixed housing 30 via the second shaft 232', and the second lock rod 231' can be placed in the lock slot 211 to form a limit along with the rotation of the lock body, and can be released from the lock slot 211 to release the limit.

Two elastic restoring members (234, 234') are respectively disposed between the corresponding latch bodies and the fixed housing 30, and are configured to: driven by the corresponding pressure levers (132, 132 '), the lock catch body can rotate to the release working position, and the corresponding lock rod parts (231, 231') are separated from the clamping groove 211; the lock catch body which is rotated to the release working position can drive the corresponding elastic reset pieces (234, 234 ') to generate corresponding deformation, and can release the elastic deformation energy when the lock rod parts (231, 231 ') are aligned with the clamping groove 211 to drive the corresponding lock catch body to rotate to the limit working position, in other words, under the action of the elastic reset pieces, the corresponding lock rod parts (231, 231 ') are placed in the clamping groove 211.

Here, the elastic reset pieces (234, 234') are in a spring piece structure form, the structure is simple, and the assembly space occupation is relatively small. In specific application, the elastic restoring piece can be integrally formed with the corresponding lock catch body, or a detachable fixed connection mode can be adopted.

In order to prevent the torsion spring 22 from coming off the rotating disc 21, as shown in fig. 5, 6 and 7, in the present embodiment, the top of the upright 212 includes a boss 217 extending outward in the radial direction, and accordingly, the extending end of the first cantilever 221 includes a first limiting hook 222, the extending end of the second cantilever 221' includes a second limiting hook 222', the first limiting hook 222 and the second limiting hook 222' are formed by bending in opposite directions, and the boss 217 at the top of the upright 212 can form a limiting position for limiting the displacement of the limiting hooks along the first direction X.

Further, in a projection plane passing through the rotation center of the turntable 21, the first suspension arm 221 and the second suspension arm 221' are arranged crosswise, so that the space in the height direction can be fully utilized, and the assembly interference can be avoided.

In this scheme, two hasps are through the contact surface on its hasp body and corresponding depression bar adaptation, and then two depression bars through driver plate 13 relieve the rotation spacing to carousel 21 at corresponding work node.

As shown in fig. 8, the latch body of the first latch 23 includes a first contact surface 233 adapted to the first pressing rod 132, and the latch body of the second latch 23' includes a second contact surface 233' adapted to the second pressing rod 132 '. The dynamic cooperation of the rotary switch operating mechanism will be described in detail with reference to fig. 9 to 13.

The operating mechanism is in the off position and referring to fig. 9, a schematic view of the knob handle in the first operating position is shown. The knob handle 11 is located at the 0 ° position, the first locking rod 231 of the first locking catch 23 is disposed in the locking slot 211, and the second locking rod 231' of the second locking catch 23' abuts against the outer wall surface 215 of the rotary disc 21, that is, the second locking rod 231' is stopped on the circumferential outer wall surface 215 of the rotary disc 21, and is in the unlocked state and does not play a limiting role.

When the knob handle 11 is rotated clockwise at the 0 ° position, and the handle shaft 12 drives the dial 13 clockwise, the first suspension arm 221 on the torsion spring 22 is driven to realize torsion spring energy storage, because the first lock lever part 231 is located in the slot 211, the rotating disc 21 is kept stationary, and the second suspension arm 221' of the torsion spring 22 acts on the upright post 212 of the rotating disc 21 and also keeps stationary. Referring to fig. 10, the figure shows a schematic diagram of the fitting relationship of the dial 13 when the knob handle 11 is rotated clockwise to the first predetermined position. When the first lever is rotated to the first predetermined position, the first pressing rod 132 on the driving plate 13 presses against the first contact surface 233, and can drive the lock body of the first lock 23 to rotate to the release position; that is, the first pressing rod 132 on the driving plate 13 contacts and presses the first contact surface 233 on the first locking catch 23, the first locking rod 231 rotates around the rotating shaft 232, the first locking rod 231 moves out of the locking slot 211 until the first locking catch 23 no longer limits the rotating disc 21, at this time, the torsion spring 22 releases the elastic deformation energy, and the upright 212 on the rotating disc 21 is pulled by the second suspension arm 221' thereon, so that the rotating disc 21 starts to rotate clockwise. As mentioned before, the stored energy of the torsion spring 22 is here converted into kinetic energy of the turntable 21.

The "first predetermined position" can be realized by adjusting the circumferential relative positions of the first pressing rod 132 and the second pressing rod 132', and referring to fig. 11 together, a schematic diagram of the position relationship between the dial and the lock catch when the knob handle is located at the first predetermined position is shown.

When the knob handle 11 is further rotated to the 90 ° position, the second locking bar portion 231 'of the second locking bar 23' is aligned with the locking groove 211 of the rotary disc 21, and the locking body of the second elastic restoring member 234 'is rotated until the second locking bar portion 231' is placed in the locking groove 211. At this time, the second locker 23' constitutes a rotation limit to the turntable 21. The knob handle 11 is held in the same angular position, i.e. 90 deg., of the upright 212 by the action of the first and second cantilever arms 221 and 221' of the torsion spring 22 on the toggle lever 131 of the dial 21. The operating mechanism is in a closed position. Referring to fig. 12 and fig. 13 together, fig. 12 is a schematic view showing the knob handle located at the second working position, and fig. 13 is a schematic view showing the fitting relationship of the dial when the knob handle is located at the second predetermined position.

Further, the operating mechanism is rotated counterclockwise from the closed position to the open position, and accordingly, the knob handle 11 is rotated from the 90 ° position to the 0 ° position. Specifically, when the knob handle 11 is located at the 90 ° position, the second lock rod portion 231 'of the second lock catch 23' is disposed in the lock slot 211, and the first lock rod portion 231 of the first lock catch 23 abuts against the outer wall surface 215 of the rotary disc 21; when the handle shaft 12 at the 90 ° position drives the driving plate 13 to rotate counterclockwise to the second predetermined position, the second pressing rod 132 'presses against the second contact surface 233' and drives the locking body to rotate to the releasing position; similarly, when the knob handle 11 rotates to the 0 ° position, the first lock rod 231 of the first lock catch 23 is aligned with the lock slot 211, and under the action of the first elastic reset member 234, the first lock rod 231 is placed in the lock slot 211, so as to limit the rotation of the rotary disc 21.

It should be understood that the operation process of the operating mechanism from the closed position to the open position corresponds to the operation process from the open position to the closed position, and therefore, the detailed description is omitted.

To further improve the press-against actuation performance, the first and second contact surfaces 233, 233' are each configured to: the corresponding contact surface is a gradually changed inclined surface or cambered surface from the initial end to the tail end which is in pressing contact with the corresponding pressure rod. Here, the "start end" refers to an initial portion where the contact surface is pressed by the corresponding pressing lever, and correspondingly, the "end" refers to an end portion where the contact surface is pressed by the corresponding pressing lever. On the whole, satisfy and promote the pivoted basis of hasp body, can rationally control resistance friction.

In addition, in order to improve the operability, as shown in fig. 6, the turntable 21 may further include a first boss surface 213 and a second boss surface 213', both of which are formed to radially extend outward from an outer wall surface 215 of the turntable 21, and the first boss surface 213 and the second boss surface 213' are provided at a circumferential interval. The cover plate 32 of the fixed housing 30 is provided with a first limiting portion 321 and a second limiting portion 321', respectively, and is configured to: when the knob handle 11 rotates to the 0 ° position, the first boss surface 213 can circumferentially abut against the first limiting portion 321 for limiting; when the knob handle 11 is rotated to 90 °, the second boss surface 213 'can be circumferentially abutted against the second limiting portion 321' for limiting.

Like this, based on above-mentioned circumference is balanced spacing, can obtain corresponding hasp spacing portion and the centering of draw-in groove 211 on the carousel 21, has reduced the operation degree of difficulty, and can accomplish corresponding operation of opening and shutting fast accurately.

The ordinal numbers "first" and "second" used herein are used only to describe a structure or acts of like function in the claims. It is to be understood that the use of the ordinal numbers "first" and "second" does not constitute an understandable limitation on the claimed technical solution.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (10)

1. A rotary switch operating mechanism comprising:

a fixed housing;

the energy storage assembly is arranged in the inner cavity of the fixed shell and comprises a rotary disc for outputting opening and closing driving force, an energy storage spring and two lock catches, the rotary disc can be rotationally switched between a first working position and a second working position, the two lock catches can intermittently establish rotation switching limit of the rotary disc, and the energy storage spring can drive the rotary disc to perform corresponding rotation switching by releasing elastic deformation energy;

the knob handle assembly comprises a knob handle, a handle shaft and a drive plate, wherein the knob handle is positioned outside the fixed shell, and the handle shaft is fixedly connected with the knob handle and extends along a first direction to be inserted into the fixed shell; the drive plate is connected with the handle shaft and can be synchronously rotated and switched between a first operation position and a second operation position along with the knob handle and the handle shaft;

the driving plate comprises a driving rod formed by extending along a first direction and two pressing rods formed by extending in a first surface; two side parts of the shifting rod are respectively abutted against two working ends of the energy storage spring so as to transmit operating acting force to the energy storage spring to generate corresponding deformation; the two pressure levers are respectively arranged corresponding to the two groups of lock catches so as to respectively drive the corresponding lock catches to release the constructed rotation switching limit;

wherein the first direction intersects the first face.

2. The rotary switch operating mechanism according to claim 1, wherein a locking groove is formed in an outer peripheral wall of the rotary plate, the lock catch includes a lock catch body and an elastic restoring member, the lock catch body is pivotally connected to the fixed housing, the elastic restoring member is disposed between the lock catch body and the fixed housing, a lock lever portion of the lock catch body can be disposed in the locking groove to construct the corresponding rotation switching limit, and the lock lever portion is configured to: under the drive of the corresponding pressure lever, the lock catch body can rotate to a release working position, and the lock rod part of the lock catch body is separated from the clamping groove; and the lock catch body which rotates to the working position releasing position can drive the corresponding elastic reset piece to generate corresponding deformation, and can release elastic deformation energy when the lock rod part and the clamping groove are centered, so as to drive the lock catch body to rotate to the limiting working position, and the lock rod part of the lock catch body is arranged in the clamping groove.

3. The rotary switch operating mechanism according to claim 2, wherein the energy storage spring is a torsion spring, and a first cantilever and a second cantilever extend from two ends of a spring body of the torsion spring respectively to form two working ends respectively; the driving lever extends towards the rotary disc and is inserted between the first cantilever and the second cantilever which are circumferentially arranged at intervals, the rotary disc comprises an upright post which extends towards the driving disc to form, the upright post is positioned on the radial outer side of the driving lever, and the first cantilever and the second cantilever are respectively positioned on two circumferential sides of the upright post and are configured as follows: when the shifting lever presses against the first cantilever clockwise or presses against the second cantilever anticlockwise, the upright post can correspondingly construct the rotation limit of the second cantilever or the first cantilever, so that the torsion spring generates corresponding deformation.

4. The rotary switch operating mechanism according to claim 3, wherein the first suspension arm and the second suspension arm are arranged in a cross manner in a projection plane passing through a rotation center of the rotary plate, the outward extending ends of the first suspension arm and the second suspension arm respectively comprise limit hooks formed by bending in opposite directions, the top of the column comprises a boss extending outward in a radial direction, and the boss can form a limit for limiting the displacement of the limit hooks along the first direction.

5. The rotary switch operating mechanism according to claim 4, wherein the rotary plate further comprises a protruding ring, a torsion spring installation space is formed between the protruding ring and an outer wall surface of the rotary plate, a spring body of the torsion spring is sleeved outside the protruding ring, the outer wall surface has an opening, and the first cantilever and the second cantilever are extended outwards through the opening.

6. The rotary switch operating mechanism according to claim 2, wherein the elastic restoring member is a spring, and the elastic restoring member is integrally formed with the latch body or detachably and fixedly connected with the latch body.

7. The rotary switch operating mechanism according to any one of claims 3 to 6, wherein the two latches are a first latch and a second latch, both of which are pivotally connected to the stationary housing through a rotating shaft, and the two pressing rods are a first pressing rod and a second pressing rod;

the lock catch body of the first lock catch comprises a first contact surface matched with the first pressure rod, the lock catch body of the second lock catch comprises a second contact surface matched with the second pressure rod, and the lock catch body is configured as follows:

when the knob handle is located at the first operation position, the lock rod part of the first lock catch is arranged in the clamp groove, and the lock rod part of the second lock catch abuts against the outer wall surface of the rotary disc; when the handle shaft at the first operation position drives the drive plate to rotate clockwise to a first preset position, the first pressure lever is pressed against the first contact surface and drives the corresponding lock catch body to rotate to the release working position; when the knob handle rotates to a second operation position, the lock rod part of the second lock catch is aligned with the clamping groove;

when the knob handle is located at the second operation position, the lock rod part of the second lock catch is arranged in the clamp groove, and the lock rod part of the first lock catch abuts against the outer wall surface of the rotary disc; when the handle shaft at the second operation position drives the drive plate to rotate anticlockwise to a second preset position, the second pressure lever is pressed against the second contact surface and drives the corresponding lock catch body to rotate to the release working position; when the knob handle rotates to a first operation position, the lock rod part of the first lock catch is aligned with the clamping groove.

8. The rotary switch operating mechanism of claim 7, wherein the first contact surface and the second contact surface are each configured to: from the initial end to the tail end which are in pressing contact with the corresponding pressure rods, the corresponding contact surfaces are gradually changed slopes or cambered surfaces.

9. The rotary switch operating mechanism according to claim 8, wherein the rotary plate further includes a first boss surface and a second boss surface, both of which are formed by radially extending outward from an outer wall surface of the rotary plate, and the first boss surface and the second boss surface are circumferentially spaced apart from each other, and the stationary housing is provided with a first limit portion and a second limit portion, respectively, and is configured to: when the knob handle rotates to a first operation position, the first boss surface and the first limiting part are circumferentially abutted and limited; when the knob handle rotates to the second operation position, the second boss surface and the second limiting part are circumferentially abutted and limited.

10. The rotary switch operating mechanism according to claim 1, wherein the body of the dial is a sheet-like structure, and the interior cavity of the stationary housing is enclosed by an outer cover and a cover plate.

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