CN102956394B - Rocker switch - Google Patents

Abstract

A seesaw switch of the present invention comprises a housing and a button mounted on the upper end of the housing so as to be swingable to both sides of the housing, and a first button block and a second button are respectively arranged on both sides of the lower end surface of the button block, the housing below the first key block is provided with a first conduction assembly, the housing below the second key block is provided with a second conduction assembly, and the rocker switch also includes a The self-locking component in the housing, the self-locking component includes a barb part arranged under the first protrusion and connected to the bottom of the button through a first spring, and a barb on the side close to the second conduction component. The lower end of the button extends downward and the slider guide rail mechanism is arranged at the lower end of the housing. The slider guide rail mechanism is close to the upper end of the second conduction component and cooperates with the oblique guide post, away from the second One end of the lead-through component cooperates with the barb.

Description

A rocker switch

technical field

The invention relates to a rocker switch.

Background technique

At present, most of the rocker switches used in the control of various electrical appliances, especially in the control of automotive electrical appliances, are single reset rocker switches or single self-locking rocker switches, but sometimes, according to the actual needs of electrical control, the same electrical appliance has different However, the state needs to be controlled by a reset rocker switch and a self-locking rocker switch. At present, almost all rocker switches only realize reset control or self-locking control alone, so that the same rocker switch cannot meet the various control needs of electrical appliances. Only by increasing the number of rocker switches can electrical appliances The number of components in the control structure increases, the structure is more complicated, the operation is more cumbersome, and the cost is increased.

Contents of the invention

Aiming at the problem that the same seesaw switch that controls the electric appliance can only realize self-locking or reset alone, which makes the control structure of the electric appliance more complex and the operation more cumbersome, the present invention provides a kind of self-locking switch that can realize self-locking on the same seesaw switch. A rocker switch with a new structure with two functions of lock and reset.

A seesaw switch of the present invention comprises a housing and a button mounted on the upper end of the housing so as to be swingable to both sides of the housing, and a first button block and a second button are respectively arranged on both sides of the lower end surface of the button block, the housing below the first key block is provided with a first conduction assembly, and the housing below the second key block is provided with a second conduction assembly, and the keys pass through the first key block and the The second button block controls the conduction of the first conduction component and the second conduction component, and the rocker switch also includes a self-locking component disposed in the housing, and the self-locking component is disposed close to the The lower end surface of the key on the side of the first key block is connected to the barb member on the lower end surface of the key through the first spring, the inclined guide column extending downward from the lower end surface of the key on the side close to the second conduction component, and The slider guide rail mechanism arranged at the lower end of the housing, the upper end of the slider guide rail mechanism close to the second conduction component cooperates with the inclined guide post, and the end far away from the second conduction component cooperates with the barb parts fit.

Further, the slider guide rail mechanism includes a guide rail disposed on the housing and a slider disposed on the guide rail that can slide between a self-locking position and a reset position.

Further, the slider includes a body part and a sliding part arranged at the lower end of the body part and matched with the guide rail, and one end of the sliding part close to the second conducting component is connected to the On the side wall of the casing, and the second spring is always in a compressed state.

Further, the barb piece includes a base, a hook-shaped portion extends outward from the lower end of the base, the upper end surface of the hook-shaped portion is a plane perpendicular to the side surface of the base, and the hook-shaped portion The lower end surface is an inclined surface inclined upward along the direction away from the base and fitted with the upper end surface of the slider body part away from the second conducting component.

Further, the upper end surface of the slider body part near the second conduction component is a second inclined surface matched with the lower end surface of the inclined guide post, and the second inclined surface is along the direction away from the second guide post. An inclined surface inclined downward in the direction of the through component, the end of the slider body part away from the second conductive component has a protruding part, and the protruding part has a first inclined surface on its upper end surface and a first inclined surface on its lower end surface The lower contact plane of the first inclined surface and the lower end surface of the hooked part of the barb fit and cooperate with each other to form a reset position, and the lower end surface of the protruding part cooperates with the upper end surface of the hooked part of the barb to form a self-locking position.

Further, the end of the guide rail away from the second conduction component has a limiting protrusion, and the sliding part of the slider is slidably arranged on the side of the limiting protrusion and the second conducting component. on the rails between the housings.

Further, the upper end of the base has a second protrusion, and there is also a first protrusion on the lower end surface of the key between the first key block and the second key block and close to the first key block. The protrusion is connected to the first protrusion through a first spring, and a pipe is sleeved on the second protrusion, and the other end of the pipe is sleeved on the first protrusion.

Furthermore, a guide structure with a vertical hole and a base with a groove extend inwards from the housing on one side of the first conduction assembly, and the housing on the side of the second conduction assembly respectively A guide structure with a vertical hole and a base with a groove extend inwardly, and the base is arranged under the guide structure.

Further, the first conduction component and the second conduction component respectively include a guide block, the lower end of the guide block is connected with a third spring, and the lower end of the third spring abuts against the bottom of the groove of the base , and the guide block passes through the vertical hole of the guide structure and abuts against the lower end surface of the button block, and the lower ends of the two guide blocks are respectively fixedly installed with a moving conductive sheet, and the two moving conductive sheets have respectively Two tentacles.

Further, two static conductive sheets are respectively fixedly installed on the shell on the side of the first conduction component and on the shell on the side of the second conduction component, and the dynamic conductor on the side of the first conduction component The two contact pins of the conductive sheet respectively contact and cooperate with the two static conductive sheets on one side of the first conduction component to realize switch conduction, and the two contact pins of the movable conductive sheet on the side of the second conduction component respectively Contacting and cooperating with two static conductive sheets on one side of the second conduction component realizes switch conduction.

Further, a balance mechanism is provided below the middle position of the lower end surface of the key, and the balance mechanism includes a third protrusion extending downward along the middle position of the lower end surface of the key, and the third protrusion has an opening A downward blind hole, a guide column is movably sleeved in the blind hole, and a fourth spring is also arranged in the blind hole between the closed end of the blind hole and the guide column, and the fourth One end of the spring is connected to the guide post, and the other end is against the closed end of the blind hole.

Further, the balance mechanism also includes a V-shaped groove provided on the shell at the lower end of the blind hole, the lower end surface of the guide column is against the upper end surface of the V-shaped groove, and can be positioned on the V-shaped groove. The upper surface of the groove slides.

The beneficial effect of the present invention is that a self-locking component is arranged in the rocker switch, the barb part cooperates with the slider guide rail mechanism, and the button is pressed to the first conduction component. side to realize the self-locking conduction function of the rocker switch; through the cooperation of the inclined guide column and the slider guide rail mechanism, and pressing the button to the side of the second conduction component, the unlocking of the rocker switch is realized , and can further realize the reset conduction function of the rocker switch; thus, two functions of self-locking conduction and reset conduction can be realized on the same rocker switch, which effectively simplifies the structure of electrical control and optimizes the operation of electrical control , while effectively reducing costs.

Description of drawings

Fig. 1 is a schematic structural diagram of an embodiment of a rocker switch provided by the present invention.

Fig. 2 is a schematic cross-sectional view of a completely disconnected state structure of an embodiment of a rocker switch provided by the present invention.

Fig. 3 is a schematic cross-sectional structural view of a self-latching conduction state of an embodiment of a rocker switch provided by the present invention.

FIG. 4 is a schematic cross-sectional view of a rocker switch in a reset conduction state according to an embodiment of the present invention.

Fig. 5 is a structural schematic diagram of a button of an embodiment of a rocker switch provided by the present invention.

Fig. 6 is a structural schematic diagram of a housing of an embodiment of a rocker switch provided by the present invention.

Fig. 7 is a schematic structural diagram of a slider of an embodiment of a rocker switch provided by the present invention.

Detailed ways

In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

In describing the invention, it is to be understood that the terms "central", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical The orientations or positional relationships indicated by "straight", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description , rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and should not be understood as indicating or implying relative importance.

As shown in Fig. 1, Fig. 5, Fig. 6 and Fig. 7, an embodiment of a rocker switch according to the present invention includes a housing 27 and a key 6, and a protrusion is provided in the middle of both sides of the upper end of the housing 27. The key 6 is mounted on the pin shaft 35 at the upper end of the housing 27 so that it can swing to both sides of the housing 27 . A first key block 10 and a second key block 1 are respectively arranged on both sides of the lower end surface of the key 6 . The housing 27 below the first key block 10 is provided with a first conduction assembly 28, and the housing 27 below the second key block 1 is provided with a second conduction assembly 26; The first key block 10 and the second key block 1 control the conduction of the first conduction component 28 and the second conduction component 26 . The rocker switch also includes a self-locking assembly arranged in the housing 27 , the self-locking assembly is arranged below the lower end surface of the button 6 on the side close to the first button block 10 and passed through the first spring 11 The barb 19 connected to the lower end surface of the button 6 , the inclined guide post 2 extending downward from the lower end surface of the button 6 near the second conducting component 26 , and the slider provided at the lower end of the housing 27 Rail mechanism 29. The upper end of the slider guide rail mechanism 29 close to the second guide assembly 26 cooperates with the inclined guide post 2 , and the end far away from the second guide assembly 26 cooperates with the barb member 19 . The self-locking component is used for self-locking after the conduction of the first conduction component 28, press the button 6 to the first conduction component 28, through the barb 19 and the slide The cooperation of the block guide rail mechanism 29 realizes the self-locking function of the switch. By pressing the key 6 to the second conduction component 26, through the cooperative movement of the inclined guide post 2 and the slider guide rail mechanism 29, the unlocking function of the first conduction component 28 can be realized, and Further pressing can realize the reset conduction of the second conduction component 26, so that two functions of reset and self-locking can be realized on a rocker switch.

Please continue to show in FIG. 1 and FIG. 7 that the slider guide rail mechanism 29 includes a guide rail 22 arranged on the housing 27 and a slide rail arranged on the guide rail 22 that can slide between the self-locking position and the reset position. slider. The slider includes a body portion 25 and a sliding portion 23 disposed at a lower end of the body portion 25 and matched with the guide rail 22 . The end of the guide rail 22 away from the second conducting component 26 has a limiting protrusion 33, and the sliding portion 23 of the slider is slidably disposed on the limiting protrusion 33 and the second conducting component. On the guide rail 22 between the shells 27 on one side of the component 26. One end of the sliding part 23 close to the second conduction assembly 26 is connected to the side wall of the housing 27 through a second spring 24, and the second spring 24 is always in a compressed state, so that the second spring 24 always provides a thrust along the sliding direction of the slider to the slider.

The barb 19 includes a base 18, a hook 20 extends outward from the lower end of the base 18, the upper end of the hook 20 is a plane perpendicular to the side surface of the base 18, the The lower end surface of the hook portion 20 is an inclined surface inclined upward along the direction away from the base portion 18 and fitted with the upper end surface of the end of the slider body 25 away from the second conducting component 26 . The hook portion 20 is used to cooperate with the slider body portion 25 to form a self-locking effect. The upper end of the base 18 has a second protrusion 17 for connecting the first spring 11 . There is also a first protrusion 9 between the first key block 10 and the second key block 1 and on the lower end surface of the key 6 near the first key block 10, and the second protrusion 17 passes through the first spring 11 It is connected to the first protrusion 9 , and a pipe 8 is sleeved on the second protrusion 17 , and the other end of the pipe 8 is sleeved on the first protrusion 9 . The first protrusion 9 controls the movement of the barb 19 through the first spring 11 and the pipe 8 respectively. When the button 6 is pressed to the side of the first conduction component 28, The first protrusion 9 is pressed to the pipe 8, and the pipe 8 transmits the movement of the first protrusion 9 to the barb member 19, and moves to the part that cooperates with the slider body part 25. In the self-locking position, the first spring 11 is used to enable the button 6 to be pressed to the side of the second conduction component 26 during the unlocking process.

The end of the slider body part 25 away from the second conducting assembly 26 has a protruding part 34, and the protruding part 34 has a first slope 31 on its upper end face and a lower contact plane on its lower end face , the first inclined surface 31 and the lower end surface of the hooked portion 20 of the barb member 19 fit together to form a reset position, and the lower end surface of the protruding portion 34 and the hooked portion 20 of the barb member 19 The upper end faces cooperate to form a self-locking position. The protruding portion 34 is used to cooperate with the hook portion 20 to play a self-locking function. The button 6 is pressed to the side of the first conduction component 28, the barb 19 moves downward, the first inclined surface 31 slides relative to the lower end surface of the barb 19, and the The slider moves in a direction away from the barb 19, when the first slope 31 is no longer in contact with the lower end surface of the barb 19 and the barb 19 moves to the body of the slider 25 below the protruding part 34 of the slider body part 25, the protruding part 34 of the slider body part 25 moves to the upper end surface of the barb part 19 under the pushing force of the second spring 24 to limit the backward movement of the barb part 19 , so as to realize the self-locking of the switch. The upper end surface of the slider body part 25 close to the second conducting assembly 26 is a second inclined surface 32 matched with the lower end surface of the inclined guide post 2, and the second inclined surface 32 is along the direction away from the The direction of the second conduction component 26 is a slope inclined downward. The button 6 is pressed to the side of the second conduction component 26, the inclined guide post 2 moves downward, and the lower end surface of the inclined guide post 2 slides relative to the second inclined surface 32, so that the The slider moves in a direction away from the barb member 19, and moves until the barb portion 20 of the barb member 19 disengages from the slider extension 34, and the barb member 19 is in the first Under the action of a spring 11, it moves upwards, so as to realize the unlocking of the pair of rocker switches.

Please continue to show in FIG. 1 to FIG. 7 that the housing 27 on one side of the first conduction assembly 28 respectively extends inwardly a guide structure 12 with a vertical hole 30 and a base 16 with a groove, A guide structure 12 with a vertical hole 30 and a base 16 with a groove extend inwardly from the housing 27 on one side of the second conduction component 26, and the base 16 is arranged on the guide structure. 12 below. The first conduction assembly 28 and the second conduction assembly 26 respectively include a guide block 13, the lower end of the guide block 13 is connected with a third spring 15, and the lower end of the third spring 15 abuts against the The bottom of the groove of the base 16 , and the guide block 13 passes through the vertical hole 30 of the guide structure 12 and abuts against the lower end surface of the button block. By setting the third spring 15, when the switch button 6 is pressed to the side of the second conduction assembly 26, the third spring 15 provides an upward force to the guide block 13, so that After the external force is removed, the reset function of the rocker switch can be realized under the action of the upward force of the third spring 15 . The lower ends of the two guide blocks 13 are respectively fixed with a moving conductive piece 14, and the two moving conductive pieces 14 respectively have two contact feet. Two static conductive strips 21 are fixedly installed on the housing 27 on the side of the first conduction assembly 28 and on the housing 27 on the side of the second conduction assembly 26 respectively. The first conduction assembly 28 The two contact pins of the movable conductive sheet 14 on one side respectively contact and cooperate with the two static conductive sheets 21 on one side of the first conduction component 28 to realize switch conduction, and the movable contact pins on one side of the second conduction component 26 The two contact legs of the conductive sheet 14 respectively contact and cooperate with the two static conductive sheets 21 on one side of the second conduction component 26 to realize switch conduction.

Please refer to Fig. 1 to Fig. 4 again, there is a balance mechanism below the middle position of the lower end surface of the button 6, and the balance mechanism includes a third protrusion extending downward along the middle position of the lower end surface of the button 6. 4, the third protrusion 4 has a blind hole with an opening downward, and a guide post 3 is movably sleeved in the blind hole, and the closed end of the blind hole and the guide post 3 A fourth spring 5 is also arranged in the blind hole, one end of the fourth spring 5 is connected to the guide column 3, and the other end is against the closed end of the blind hole.

The balance mechanism also includes a V-shaped groove 7 arranged on the housing 27 at the lower end of the blind hole, the lower end surface of the guide column 3 is against the upper end surface of the V-shaped groove 7, and can The upper end surface of the V-shaped groove 7 slides. When the rocker switch button 6 is pressed to both sides, the guide column 3 moves to the side surface corresponding to the V-shaped groove 7, so that the fourth spring 5 is in a compressed state, so that the guide The column 3 has a tendency to return to a balanced state, so as to keep the rocker switch button 6 in a balanced state when it is completely disconnected.

In summary and combined with the accompanying drawings, the working process of the rocker switch:

During the process of the rocker switch from the balance position of the fully disconnected state to the self-locking position of the self-locking conduction state, when the button 6 is pressed to one side of the first conduction component 28 under the action of an external force, The guide block 13 of the first conduction component 28 moves downward under the action of the first key block 10 and moves to the movable conductive sheet 14 on one side of the first conduction component 28 and the first conduction component The static conductive sheet 21 on one side of 28 is in contact with the conduction position. At the same time, the first protrusion 9 is pressed to the pipe 8, and the barb 19 is moved downward through the pipe 8, because the lower end surface of the barb 19 is in contact with the sliding block. The cooperation of the first inclined surface 31 of the outlet portion 34 makes the slider move along the direction of the guide rail 22 to the side away from the barb member 19 . When the barb member 19 moves to the lower contact plane of the slider extension 34, the slider moves back along the guide rail 22 under the push force of the second spring 24, and moves to the The lower contact plane of the slider extension 34 matches the upper end surface of the barb 20 of the barb 19 , so that the barb 20 of the barb 19 cooperates with the slider extension 34 to form a Self-locking, at this time the first spring 11 is in a stretched state, and there is an upward pulling force on the barb 19, and the switch is in a self-locking state at this time.

During the process of the rocker switch from the self-locking position to the unlocking position, when the button 6 is pressed to the side of the second conduction component 26 under the action of an external force, the inclined guide post 2 moves downwards, passing through the Under the cooperative action of the inclined guide column 2 and the second inclined surface 32; the slider moves along the direction away from the guide rail 22 of the barb member 19, and the slider moves to the same direction as the barb member 19 After disengagement, the barb member 19 moves upward under the action of the first spring 11 , and at the same time, the first conduction component 28 is disconnected.

During the process of the rocker switch from the unlocked position to the reset conduction state position and then to the equilibrium position, the button 6 is further pressed to the second conduction component 26 under the action of an external force to make the second conduction component 26 The guide block 13 of the assembly 26 moves downward in the second key block 1 . The moving conductive strip 14 on one side of the second conducting component 26 is in contact with the static conducting strip 21 on one side of the second conducting component 26 at the conduction position, and the second conductive strip 14 on one side of the second conducting component 26 Three springs 15 are in compressed state. At this time, the switch is in the reset conduction state. After the external force is removed, under the action of the restoring force of the third spring 15, the moving conductive sheet 14 and the static conductive sheet 21 of the second conduction component 26 are disconnected, and the The rocker switch returns to the balanced state immediately. Therefore, two functions of self-locking and reset are realized on the same switch, which effectively simplifies the structure of the electric appliance control, optimizes the operation of the electric appliance control, and effectively reduces the cost at the same time.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the claims of the present invention. within the scope of protection.

Claims (12)

1. A rocker switch, comprising a housing (27) and a button (6) mounted on the upper end of the housing (27) so as to be able to swing to both sides of the housing (27), the lower end surface of the button (6) The first key block (10) and the second key block (1) are respectively arranged on both sides, and the housing (27) below the first key block (10) is provided with a first conduction component (28), so The casing (27) below the second button block (1) is provided with a second conduction assembly (26), and the buttons (6) pass through the first button block (10) and the second button block (1) respectively. ) to control the conduction of the first conduction component (28) and the second conduction component (26), characterized in that the rocker switch further includes a self-locking component disposed in the housing (27), The self-locking assembly includes a barb (19) arranged below the lower end surface of the key on the side close to the first key block (10) and connected to the lower end surface of the key (6) through a first spring (11) ), the oblique guide post (2) extending downward from the lower end of the button (6) on the side close to the second conduction component (26), and the slider guide rail mechanism (29) arranged at the lower end of the housing (27) , the upper end of the slider rail mechanism (29) close to the second conduction component (26) cooperates with the inclined guide post (2), and the end far away from the second conduction component (26) cooperates with the barb pieces (19) fit. 2. A rocker switch according to claim 1, characterized in that, the slider guide mechanism (29) includes a guide rail (22) arranged on the housing (27) and a guide rail arranged on the guide rail Slider on (22) that can slide between self-locking position and reset position. 3. A rocker switch according to claim 2, characterized in that, the slider includes a body part (25) and is arranged at the lower end of the body part (25) and cooperates with the guide rail (22). The sliding part (23), the end of the sliding part (23) close to the second conduction assembly (26) is connected to the side wall of the housing (27) through the second spring (24), and the The second spring (24) is always in a compressed state. 4. A rocker switch according to claim 3, characterized in that, the barb (19) includes a base (18), and a hook-shaped portion extends outward from the lower end of the base (18) (20), the upper end surface of the hook-shaped part (20) is a plane perpendicular to the side surface of the base (18), and the lower end surface of the hook-shaped part (20) is along the direction away from the base (18) An inclined surface that is inclined upward and fits and fits with the upper end surface of the end of the slider body (25) away from the second conduction component (26). 5. A rocker switch according to claim 4, characterized in that, the upper end surface of the slider body (25) on the side close to the second conduction component (26) is aligned with the inclined guide The second inclined surface (32) matched with the lower end surface of the column (2), and the second inclined surface (32) is an inclined surface inclined downward along the direction away from the second conduction component (26), and the slider body part (25) The end away from the second conduction component (26) has a protruding part (34), and the protruding part (34) has a first slope (31) on its upper end face and a first slope (31) on its lower end face The lower contact plane of the first inclined surface (31) and the lower end surface of the hooked part (20) of the barb (19) fit together to form a reset position, and the lower end surface of the protruding part (34) is in contact with the The upper end surface of the hook portion (20) of the barb (19) cooperates to form a self-locking position. 6. The rocker switch according to claim 3, characterized in that, the end of the guide rail (22) away from the second conduction component (26) has a limit protrusion (33), the The sliding part (23) of the slider is slidably arranged on the guide rail (22) between the limiting protrusion (33) and the housing (27) on one side of the second conducting assembly (26). 7. A rocker switch according to claim 4, characterized in that, the upper end of the base (18) has a second protrusion (17), between the first button block (10) and the second button There is also a first protrusion (9) on the lower end surface of the key (6) between the blocks (1) and close to the first key block (10), and the second protrusion (17) passes through the first spring (11) It is connected to the first protrusion (9), and a pipe (8) is sleeved on the second protrusion (17), and the other end of the pipe (8) is sleeved on the first protrusion up (9). 8. A rocker switch according to claim 1, characterized in that, the housing (27) on one side of the first conduction component (28) respectively extends inwards with a vertical hole (30 ) guide structure (12) and a base (16) with a groove, the housing (27) on one side of the second conduction assembly (26) respectively extends inwards with a vertical hole (30) The guide structure (12) and the base (16) with a groove, and the base (16) is arranged under the guide structure (12). 9. A rocker switch according to claim 8, characterized in that, the first conduction component (28) and the second conduction component (26) respectively include a guide block (13), so The lower end of the guide block (13) is connected with a third spring (15), the lower end of the third spring (15) is against the bottom of the groove of the base (16), and the guide block (13) passes through the The vertical hole (30) of the guide structure (12) abuts against the lower end surface of the key block, and the lower ends of the two guide blocks (13) are respectively fixed with a movable conductive sheet (14), and the two movable conductive sheets The pieces ( 14 ) each have two contact feet. 10. A rocker switch according to claim 9, characterized in that, the shell (27) on one side of the first conduction component (28) is connected to the second conduction component (26). Two static conductive sheets (21) are respectively fixedly installed on the shell (27) on the side of the first conduction component (28). The two static conductive sheets (21) on one side of a conduction component (28) contact and cooperate to realize switch conduction, and the two contact pins of the movable conductive sheet (14) on the side of the second conduction component (26) respectively Contacting and cooperating with two static conductive sheets (21) on one side of the second conduction component (26) realizes switch conduction. 11. A rocker switch according to claim 1, characterized in that a balance mechanism is arranged below the middle position of the lower end surface of the button (6), and the balance mechanism includes The third protrusion (4) extending downward at the middle position of the lower end surface, the third protrusion (4) has a blind hole with an opening downward, and a guide column (3) is movably sleeved in the blind hole ), and a fourth spring (4) is provided in the blind hole between the closed end of the blind hole and the guide post (3), and one end of the fourth spring (4) is connected to the guide post ( 3), the other end abuts against the closed end of the blind hole. 12. A rocker switch according to claim 11, characterized in that, the balance mechanism further comprises a V-shaped groove (7) provided on the housing (27) at the lower end of the blind hole, and the guide The lower end surface of the column (3) abuts against the upper end surface of the V-shaped groove (7), and can slide on the upper end surface of the V-shaped groove (7).