Round rotary switch with reset function

Abstract

The utility model belongs to the technical field of switches, and discloses a circular rotary switch with a reset function, which comprises a shell seat, the shell seat is provided with a plurality of pin ports, the shell seat is provided with a shell cover, the shell cover is provided with a spring groove, the central position of the shell cover is provided with a knob port, and the shell cover is provided with a rotary groove by taking the knob port as the center. Limiting bosses are arranged on the edge of the rotating groove at equal intervals, a blocking table is arranged between the rotating groove and the spring groove, and a clamping opening is formed in the blocking table. A rotary disc is installed between the shell base and the shell cover, the rotary disc is connected with a rotary knob located in the rotary knob opening, the rotary disc is provided with an abutting sliding table, an annular spring is connected between the abutting sliding table and the blocking table, a containing groove is formed in the lower side of the rotary disc, a contact piece is placed in the containing groove, and the contact piece is provided with a contact. A through hole is formed in the rotary disc, a straight spring is placed in the through hole, the two ends of the straight spring are connected with round balls, and the round balls make contact with the limiting bosses.

Description

Technical Field

[0001] The utility model belongs to the technical field of switches, and in particular relates to a circular rotary switch with reset function. Background Art

[0002] A circular rotary switch is a common electrical control component with a rotating handle used to control the on / off state of a circuit or adjust the parameters of a device. The following is a detailed introduction to circular rotary switches: Circular rotary switches are often used as manual control signal sources in electrical automatic control circuits to control electrical devices such as contactors and relays.

[0003] However, common circular rotary switches do not have a reset function, and manual reset is relatively unintelligent. For example, when used as a restart button, a circular rotary switch that cannot be reset needs to be manually reset again. Utility Model Content

[0004] In view of the problems raised by the above background technology, the purpose of the present invention is to provide a circular rotary switch with reset function.

[0005] In order to achieve the above technical objectives, the technical solutions adopted by this utility model are as follows:

[0006] A circular rotary switch with reset, comprising a housing, the housing being provided with a plurality of pin openings, the pin openings being located at the center and the peripheral sides of the housing, the middle being provided with one pin opening, the middle being provided with a first pin, the peripheral being provided with twelve pin openings, the peripheral being provided with a second pin, the housing being provided with a housing cover, the housing being provided with a spring groove, the housing being provided with a knob opening at the center, the housing being provided with a rotation groove centered on the knob opening, the edges of the rotation groove being provided with limiting bosses at equal distances, a blocking platform being provided between the rotation groove and the spring groove, the blocking platform being provided with a bayonet connected to the rotation groove;

[0007] A rotary disk is installed between the shell seat and the shell cover, the rotary disk is connected to a knob located in the knob mouth, the rotary disk is provided with a resistance slide, the resistance slide is located in the spring groove, an annular spring is connected between the resistance slide and the blocking platform, a placement groove is provided on the lower side of the rotary disk, a contact piece is placed in the placement groove, and the contact piece is provided with contacts corresponding to the first pin and the second pin;

[0008] A through hole is provided in the rotating disk, a straight spring is placed in the through hole, two ends of the straight spring are connected with balls, and the balls contact the limiting boss.

[0009] It is further defined that a number of arc-shaped bosses corresponding to the pin openings are provided inside the shell seat, and the arc-shaped bosses are located between two adjacent pin openings. With such a design, during rotation, the arc-shaped bosses will lift the contact piece, thereby preventing the contacts on the contact piece from wearing during rotation.

[0010] It is further defined that the contact surface of the limiting boss is arc-shaped, and such a design is easier to cooperate with the ball.

[0011] It is further defined that the shell cover and the shell base are connected by a snap-fit ​​connection, the shell cover is provided with an anti-foolproof strip, and the shell base is provided with an anti-foolproof groove. Such a design is quick and convenient to install and the installation position is not easy to make mistakes.

[0012] It is further defined that the placement groove is connected to two slots, the contact piece is integrally provided with an insert whose specifications and dimensions match the slots, and a circular spring is installed between the contact piece and the placement groove. This design limits the movement of the contact piece while the circular spring can resist the contact piece to ensure the contact strength between the contact piece and the first pin and the second pin.

[0013] The beneficial effects of adopting the utility model are:

[0014] The structural design of the utility model and the setting of the twelve second pins indicate that the switch can have twelve gears and has a wide range of uses;

[0015] With the structural design of the utility model, under the effect of the annular spring, when there is no external force on the knob, the knob will be pushed back to its original position by the annular spring to achieve the purpose of reset;

[0016] The utility model has the advantages of compact structure, small volume and good installation adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention can be further described by way of non-limiting examples given in the accompanying drawings;

[0018] Figure 1 This is a structural diagram of an embodiment of a circular rotary switch with reset function of the utility model;

[0019] Figure 2 This is a schematic diagram of the explosion structure of the embodiment of the utility model with a reset circular rotary switch Figure 1 ;

[0020] Figure 3 This is a schematic diagram of the explosion structure of the embodiment of the utility model with a reset circular rotary switch Figure 2 ;

[0021] Figure 4 This is a schematic cross-sectional view of the perforation position of an embodiment of a circular rotary switch with reset function according to the present invention;

[0022] The main component symbols are described as follows:

[0023] Shell base 1; pin opening 2; first pin 31; second pin 32; shell cover 4; spring slot 5; knob opening 6; rotation slot 7; limiting boss 8; blocking platform 9; bayonet 10; rotary disk 11; knob 12; contact slide 13; annular spring 14; placement slot 15; contact piece 16; contact point 17; through hole 18; straight spring 19; round ball 20; anti-foolproof strip 21; anti-foolproof slot 22; slot 23; insert 24; round spring 25; arc-surface boss 26. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0025] like Figures 1 to 4 As shown, the circular rotary switch with reset of the utility model includes a shell base 1, which is provided with a plurality of pin openings 2. The pin openings 2 are located at the center position and the peripheral position of the bottom of the shell base 1. There is one pin opening 2 at the middle position, and the pin opening 2 at the middle position is installed with a first pin 31. There are twelve pin openings 2 at the peripheral side, and the second pin 32 is placed in the pin opening 2 at the peripheral side. The shell base 1 is installed with a shell cover 4, which is provided with a spring groove 5. The shell cover 4 is provided with a knob opening 6 at the center position. The shell cover 4 is provided with a rotation groove 7 centered on the knob opening 6. The edge of the rotation groove 7 is equidistantly provided with limiting bosses 8. A blocking platform 9 is provided between the rotation groove 7 and the spring groove 5. The blocking platform 9 is provided with a bayonet 10 connected to the rotation groove 7.

[0026] A rotary disk 11 is installed between the housing base 1 and the housing cover 4. The rotary disk 11 is connected to a knob 12 located in the knob opening 6. The rotary disk 11 is provided with a resistance slide 13. The resistance slide 13 is located in the spring groove 5. An annular spring 14 is connected between the resistance slide 13 and the blocking platform 9. A placement groove 15 is provided on the lower side of the rotary disk 11. A contact piece 16 is placed in the placement groove 15. The contact piece 16 is provided with a contact point 17 corresponding to the first pin 31 and the second pin 32;

[0027] A through hole 18 is provided in the rotary disc 11 , and a straight spring 19 is placed in the through hole 18 . Both ends of the straight spring 19 are connected to balls 20 , and the balls 20 contact the limiting boss 8 .

[0028] In this embodiment, when using the circular rotary switch with reset, rotating the knob 12 drives the rotary disk 11 to rotate in the shell base 1 and the shell cover 4. Under the effect of the straight spring 19, the balls 20 at both ends of the straight spring 19 always contact the limit boss 8. When the balls 20 at both ends are located in the gap between the two adjacent limit bosses 8, a sound is generated. When climbing another limit boss 8, resistance is given, so the user is given good rotation feedback, indicating that the rotation has entered the next gear. The setting of the twelve second pins 32 indicates that this structure has twelve gears and is highly adaptable. Each change in gear, that is, each rotation, will drive the contact piece 16 installed in the placement groove 15 to rotate accordingly, so that the first pin 31 changes the contact with the second pin 32, thereby ensuring the purpose of gear adjustment.

[0029] When there is no external force on the knob 12, under the effect of the annular spring 14, the abutment slide 13 returns to its position in the spring groove 5. When the ball 20 returns to the position of the bayonet 10, because the depth of the bayonet 10 is greater than the depth of the gap between the two adjacent limiting bosses 8, after the ball 20 is stuck in the bayonet 10, the annular spring 14 will not be able to push it again, causing the turntable 11 to stay in position, and this position is the reset position, thus achieving the purpose of automatic reset.

[0030] Preferably, the shell base 1 is provided with a number of arc-shaped bosses 26 corresponding to the number of pin holes 2, and the arc-shaped bosses 26 are located between two adjacent pin holes 2. With this design, during rotation, the arc-shaped bosses 26 will lift the contact piece 16, thereby preventing the contacts 17 on the contact piece 16 from wearing during the rotation process. In fact, the structural shape of the arc-shaped bosses 26 can also be considered according to specific circumstances.

[0031] Preferably, the contact surface of the limiting boss 8 is arc-shaped. Such a design makes it easier to cooperate with the ball 20. In fact, the shape of the contact surface of the limiting boss 8 can also be considered according to specific circumstances.

[0032] Preferably, a snap-fit ​​connection is adopted between the shell cover 4 and the shell base 1. The shell cover 4 is provided with an anti-foolproof strip 21 and the shell base 1 is provided with an anti-foolproof groove 22. Such a design is quick and convenient to install and the installation position is not easy to make mistakes. In fact, the anti-foolproof connection structure of the shell cover 4 and the shell base 1 can also be considered according to specific circumstances.

[0033] Preferably, the placement slot 15 is connected to two slots 23, and the contact piece 16 is integrally provided with an insert 24 whose specifications and dimensions match the slot 23. A circular spring 25 is installed between the contact piece 16 and the placement slot 15. This design limits the movement of the contact piece 16 while the circular spring 25 can resist the contact piece 16 to ensure the contact strength between the contact piece 16 and the first pin 31 and the second pin 32. In fact, the limiting structure of the contact piece 16 and the structure that ensures the contact strength of the contact piece 16 can also be considered according to specific circumstances.

[0034] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by persons skilled in the art without departing from the spirit and technical principles disclosed herein shall be covered by the claims of the present invention.

Claims

1. A circular rotary switch with reset function, comprising a housing (1), characterized in that: The shell seat (1) is provided with a plurality of pin openings (2), the pin openings (2) are located at the center position and the peripheral position of the bottom of the shell seat (1), there is one pin opening (2) located at the middle position, the pin opening (2) located at the middle position is installed with a first pin (31), there are twelve pin openings (2) located at the peripheral side, and a second pin (32) is placed in the pin opening (2) located at the peripheral side, the shell seat (1) is installed with a shell cover (4), the shell cover (4) is provided with a spring groove (5), the shell cover (4) is provided with a knob opening (6) at the center position, the shell cover (4) is provided with a rotation groove (7) with the knob opening (6) as the center, the edge of the rotation groove (7) is provided with a limiting boss (8) at equal distances, a blocking platform (9) is provided between the rotation groove (7) and the spring groove (5), and the blocking platform (9) is provided with a bayonet (10) connected to the rotation groove (7); A rotary disk (11) is installed between the shell base (1) and the shell cover (4), and the rotary disk (11) is connected to a knob (12) located in the knob opening (6). The rotary disk (11) is provided with a contact slide (13), and the contact slide (13) is located in the spring groove (5). An annular spring (14) is connected between the contact slide (13) and the blocking platform (9). A placement groove (15) is provided on the lower side of the rotary disk (11), and a contact piece (16) is placed in the placement groove (15). The contact piece (16) is provided with a contact point (17) whose position corresponds to the first pin (31) and the second pin (32). The rotary disc (11) is provided with a through hole (18), a straight spring (19) is placed in the through hole (18), two ends of the straight spring (19) are connected to round balls (20), and the round balls (20) contact the limiting boss (8).

2. The circular rotary switch with reset function according to claim 1, characterized in that: The shell seat (1) is provided with arc-surface bosses (26) whose number corresponds to the pin openings (2), and the arc-surface bosses (26) are located between two adjacent pin openings (2).

3. The circular rotary switch with reset function according to claim 1, characterized in that: The contact surface of the limiting boss (8) is arc-shaped.

4. The circular rotary switch with reset function according to claim 1, characterized in that: The shell cover (4) and the shell base (1) are connected by snap fastening, the shell cover (4) is provided with an anti-crash strip (21), and the shell base (1) is provided with an anti-crash groove (22).

5. The circular rotary switch with reset function according to claim 1, characterized in that: The placement groove (15) is connected to two slots (23), the contact piece (16) is integrally provided with an inserting piece (24) whose specifications and dimensions match the slots (23), and a round spring (25) is installed between the contact piece (16) and the placement groove (15).

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