CN217544439U - Rotary switch - Google Patents

Abstract

The utility model discloses a rotary switch, which comprises a hollow cylindrical mounting groove, wherein the upper opening of the mounting groove is provided with a cover plate, a rotary button is arranged in the mounting groove in a rotary connection manner, the center of the bottom of the mounting groove is provided with an electrode plate, a plurality of potential contact pieces are circumferentially arranged, the rotary button comprises an arc extinguishing compartment and a rotary rod, the interior of the arc extinguishing compartment is hollow and is provided with an opening at least at the bottom, and two side walls of the arc extinguishing compartment are provided with side plates for cutting off electric arcs; and a C-shaped elastic contact elastic sheet is arranged in the arc extinguishing compartment, one side of the contact elastic sheet is rotatably connected with the electrode plate, and the other side of the contact elastic sheet can be independently connected with each potential contact piece through the rotation of the rotary knob. Has the advantages that: the arc extinguishing compartment can effectively block the arc formed when the switch gear is rotated, and has the excellent characteristics of high safety, stability, reliability and fire prevention; the elastic blocking arm and the stop block are matched to effectively prevent the rotating button from overturning, so that the gear shifting can be performed step by step when the gear shifting device is used.

Description

Rotary switch

Technical Field

The utility model relates to the technical field of switches, specifically indicate a rotary switch.

Background

The rotary switch is a product which is applied to alternating current power supply electrical appliances to implement multi-gear function control, and has the main characteristics that: the switch buckle is convenient to design and install, and the rotating function angle is diversified, but the rotating switch in the prior art usually rotates for 360 degrees, so that a rotating part is easy to jump over a breaking gear from a high rotating speed directly to enter a low-speed gear, or the low-speed gear crosses over the breaking gear to enter a high-speed gear directly, the rotating part is easy to damage due to large rotating speed change amplitude, and the rotating switch in the prior art is not provided with a functional mechanism of a reset key; secondly, since the arc phenomenon is not safe enough during the gear shifting process, we propose a rotary switch to solve the above problem.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is overcome above technical defect, provide a rational in infrastructure, the practicality is strong, can not appear high-low switch shelves and directly stride the shelves and adjust, be equipped with the reset key, effectively prevent electric arc, a rotary switch that safe effect is good.

In order to solve the technical problem, the utility model provides a technical scheme does: a rotary switch comprises a hollow cylindrical mounting groove, a cover plate is arranged at an opening on the upper side of the mounting groove, a rotary button is rotationally connected in the mounting groove, an electrode plate is arranged in the center of the bottom of the mounting groove, a plurality of potential contact pieces are circumferentially arranged on the mounting groove, the rotary button comprises an arc extinguishing compartment and a rotary rod, the arc extinguishing compartment is hollow and is at least provided with an opening at the bottom, and two side walls of the arc extinguishing compartment are respectively provided with a side plate for cutting off electric arcs; the arc extinguishing compartment is internally provided with a C-shaped elastic contact spring sheet, one side of the contact spring sheet is rotatably connected with the electrode plate, and the other side of the contact spring sheet can be independently connected with each potential contact piece through the rotation of the rotary knob.

The limiting and resetting mechanism comprises a stop block and a limiting block, the stop block is fixedly connected to the bottom of the cover plate, and the stop block extends into the mounting groove and is arranged on one side away from the point position contact pieces; the limiting block is fixedly arranged on the outer side of the rotating rod and used for limiting the rotation of the rotating button.

Further, the stopper includes buckle connecting portion, elasticity and blocks the arm, and buckle connecting portion block the arm with elasticity and be connected and be whole, and buckle connecting portion lock joint is rather than fixed connection at the bull stick outer wall, and elasticity blocks the arm and extends and have elasticity to the inside wall by the mounting groove central part, and when the knob antiport, elasticity blocks that the arm can block on the dog spacing.

Furthermore, the rotary button reversely rotates to the tail end of the stroke of the rotary button, and a reset contact piece is arranged at the bottom of the installation groove and is fixedly arranged.

Further, still include rotation angle equipartition mechanism, rotation angle equipartition mechanism includes that fixed setting faces a plurality of bellied dogtooths at the mounting groove bottom, still including setting up the V-arrangement contact at the contact shell fragment tip, and is a plurality of the dogtooth encircles the setting of bull stick circumference to the setting is between the electric potential contact piece, the V-arrangement contact can be gone into and form spacingly between two adjacent dogtooths.

Compared with the prior art, the utility model the advantage lie in: the rotary switch of the utility model can effectively block the electric arc formed when the transfer switch gear is rotated by arranging the arc extinguishing compartment, and has the excellent characteristics of high safety, stability, reliability and fire prevention; the rotation button can be effectively prevented from overturning by the matching of the arranged elastic blocking arm and the stop block, so that the step-by-step gear shifting can be conveniently realized during use; a reset contact piece is arranged in the reverse rotation section of the rotary knob and is used for reset control operation of the rotary switch.

Drawings

Fig. 1 is a schematic perspective view of a rotary switch according to the present invention.

Fig. 2 is an internal plan view of a rotary switch according to the present invention.

Fig. 3 is a longitudinal section structure view of the present invention.

Fig. 4 is an internal bottom view of the present invention.

Fig. 5 is a schematic view of the inside of the mounting groove of the present invention.

Fig. 6 is a schematic view of the inside of the mounting groove of the present invention.

As shown in the figure: 1. mounting grooves; 2. a cover plate; 3. an electrode sheet; 4. a potential contact piece; 5. an arc extinguishing compartment; 6. a rotating rod; 7. a side plate; 8. a contact spring; 9. a stopper; 10. a limiting block; 11. buckling; 12. an elastic barrier arm; 13. resetting the contact piece; 14. convex teeth; 15. v-shaped contacts.

Detailed Description

The following describes the present invention with reference to the accompanying drawings. In which like parts are designated by like reference numerals.

In the description of the present invention, it is to be understood that the terms "center", "lateral", "up", "down", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified. Furthermore, the term "comprises" and any variations thereof is intended to cover non-exclusive inclusions.

A rotary switch comprises a hollow cylindrical mounting groove 1, a cover plate 2 is arranged at an opening on the upper side of the mounting groove 1, a rotary button is rotationally connected in the mounting groove 1, an electrode plate 3 is arranged at the center of the bottom of the mounting groove 1, a plurality of potential contact pieces 4 are circumferentially arranged, the rotary button comprises an arc extinguishing compartment 5 and a rotary rod 6, the arc extinguishing compartment 5 is hollow and at least the bottom of the arc extinguishing compartment is provided with an opening, and side plates 7 for cutting off electric arcs are arranged on two side walls of the arc extinguishing compartment 5; a C-shaped elastic contact spring sheet 8 is arranged in the arc extinguishing compartment 5, one side of the contact spring sheet 8 is rotatably connected with the electrode plate 3, and the other side of the contact spring sheet 8 can be independently connected with each potential contact piece 4 through the rotation of a rotary button; rotate through 6 drive arc extinguishing compartment 5 of bull stick to make contact shell fragment 8 contact different electric potential contact piece 4 shift, if produce electric arc when contact shell fragment 8 rotates and leaves electric potential contact piece 4, then can carry out the check through the curb plate 7 of both sides and keep off thereby the arc extinguishing, effectively improve factor of safety.

The device further comprises a limiting reset mechanism, wherein the limiting reset mechanism comprises a stop block 9 and a limiting block 10, the stop block 9 is fixedly connected to the bottom of the cover plate 2, and the stop block 9 extends into the mounting groove 1 and is arranged on one side far away from the contact pieces at the multiple points; the limiting block 10 is fixedly arranged on the outer side of the rotating rod 6 and used for limiting the steering of the rotating button. The limiting block 10 comprises a buckle 11 connecting part and an elastic blocking arm 12, the buckle 11 connecting part and the elastic blocking arm 12 are connected into a whole, the buckle 11 connecting part is buckled on the outer wall of the rotating rod 6 and is fixedly connected with the rotating rod, the elastic blocking arm 12 extends from the central part of the mounting groove 1 to the inner side wall and has elasticity, and when the rotating button rotates reversely, the elastic blocking arm 12 can be clamped on the stop block 9 for limiting; during the use, when the knob forward rotation, elasticity blocks that arm 12 rotates along with it and can keep away from dog 9, if reverse rotation, elasticity blocks that arm 12 then can block and block at dog 9 and block the knob to it has elasticity, can the knob automatic rebound neutral gear.

The rotary button reversely rotates to the tail end of the stroke of the rotary button, a reset contact piece 13 is arranged at the bottom of the mounting groove 1, the reset contact piece 13 is arranged by utilizing the stroke space of the rotary button reversely rotating, namely, a reset contact piece 13 is arranged in the reverse direction of the neutral gear of the rotary button, the rotary button can contact the reset contact piece 13 by reversing from the neutral gear, so that the related circuit can be controlled to reset, and then the rotary button automatically rotates back to the neutral gear under the action of the elastic blocking arm 12.

The rotating angle equipartition mechanism comprises a plurality of convex teeth 14 which are fixedly arranged on the bottom surface of the mounting groove 1 and protrude upwards, and further comprises a V-shaped contact 15 arranged at the end part of the contact spring piece 8, the convex teeth 14 are circumferentially arranged around the rotating rod 6 and arranged between the potential contact pieces 4, and the V-shaped contact 15 can be clamped between two adjacent convex teeth 14 to form limiting; when the rotary knob rotates, the V-shaped contact 15 can be clamped between the convex teeth 14, so that a user is provided with a clicking hand feeling of gear shifting in rotation, and accurate gear shifting can be performed.

The present invention and the embodiments thereof have been described above, but the present invention is not limited thereto, and the embodiments shown in the detailed description are only some examples, not all examples, and the actual structure is not limited thereto. In summary, it should be understood that those skilled in the art should also understand the scope of the present invention without inventively designing the similar structure and embodiments of the present invention without departing from the spirit of the present invention.

Claims (5)

1. A rotary switch comprises a hollow cylindrical mounting groove (1), a cover plate (2) is arranged at an opening on the upper side of the mounting groove (1), a rotary button is rotationally connected in the mounting groove (1), an electrode plate (3) is arranged at the center of the bottom of the mounting groove (1), and a plurality of potential contact pieces (4) are circumferentially arranged on the bottom of the mounting groove, the rotary switch is characterized in that the rotary button comprises an arc extinguishing compartment (5) and a rotating rod (6), the arc extinguishing compartment (5) is hollow and at least the bottom of the arc extinguishing compartment is provided with an opening, and side plates (7) for cutting off electric arcs are arranged on two side walls of the arc extinguishing compartment (5); the arc extinguishing compartment (5) is internally provided with a C-shaped elastic contact spring sheet (8), one side of the contact spring sheet (8) is rotatably connected with the electrode plate (3), and the other side of the contact spring sheet can be independently connected with each potential contact piece (4) through the rotation of the rotary knob.

2. A rotary switch according to claim 1, further comprising a limit reset mechanism, wherein the limit reset mechanism comprises a stopper (9) and a limit block (10), the stopper (9) is fixedly connected to the bottom of the cover plate (2), and the stopper (9) extends into the mounting groove (1) and is arranged away from one side of the contact pieces at a plurality of points; the limiting block (10) is fixedly arranged on the outer side of the rotating rod (6) and used for limiting the steering of the rotating button.

3. A rotary switch according to claim 2, characterized in that the limiting block (10) comprises a connecting portion of the buckle (11) and an elastic blocking arm (12), the connecting portion of the buckle (11) is integrally connected with the elastic blocking arm (12), the connecting portion of the buckle (11) is buckled on the outer wall of the rotary rod (6) and is fixedly connected with the rotary rod, the elastic blocking arm (12) extends from the central portion of the mounting groove (1) to the inner side wall and has elasticity, and when the rotary knob rotates in the opposite direction, the elastic blocking arm (12) can be blocked on the block (9) for limiting.

4. A rotary switch according to claim 3, characterized in that the rotary knob is provided with a reset contact (13) in the end of its travel, said reset contact (13) being fixedly arranged at the bottom of the mounting groove (1).

5. A rotary switch according to any one of claims 1 to 4, characterized by further comprising a rotation angle equipartition mechanism, wherein the rotation angle equipartition mechanism comprises a plurality of convex teeth (14) which are fixedly arranged on the bottom surface of the mounting groove (1) and protrude upwards, and further comprises a V-shaped contact (15) arranged at the end part of the contact spring piece (8), the convex teeth (14) are circumferentially arranged around the rotating rod (6) and arranged between the potential contact pieces (4), and the V-shaped contact (15) can be clamped between two adjacent convex teeth (14) to form a limit position.

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