Switch self-resetting mechanism, switch function member and self-resetting switch

Abstract

The utility model discloses a switch self-reset mechanism which comprises an inner button, a shifting block, a switch shifting arm and a reset spring used for applying forward thrust to the inner button, a hinge shaft head is movably arranged in a corresponding hinge limiting hole, the upper side and the lower side of the shifting block are respectively and correspondingly provided with a balance elastic piece, and the balance elastic piece comprises an elastic piece body. The rear portion of the elastic piece body is attached to the shifting block through the elastic restoring force of the elastic piece body, the balance elastic piece comprises a handle piece part, the handle piece part is clamped between the corresponding elastic piece positioning block and the bottom of the groove, and the switch self-resetting mechanism is beneficial for enabling the switch to act flexibly and stably. Meanwhile, the switch function piece and the self-reset switch provided by the utility model comprise the switch self-reset mechanism, so that the switch action is flexible and stable.

Description

TECHNICAL FIELD

[0001] The utility model relates to switch reset mechanism, switch function spare and wall switch field, concretely relates to a kind of switch self-resetting mechanism and switch function spare and self-resetting switch. BACKGROUND

[0002] At present, the control switch of electric lamp is mostly button type switch, that is, the moving of switch is controlled by the way of dialing or pressing, thereby the on-off state of electric lamp circuit is controlled, but button cannot be reset automatically, which leads to the different form of button opening and closing, and affects the appearance coordination of wall switch;Some existing switch products have self-resetting structure to improve user experience, for example, Chinese invention patent publication No.CN108039299B "self-resetting switch";However, the reset mechanism of existing self-resetting switch is relatively complex, and there is error in the size of parts of reset mechanism, if the gap between parts is set too small, it will lead to the situation that the switch action of part of products is stuck, if the gap between parts is set larger, it will lead to the feeling of loose and slack when operating switch, or lead to the failure of switch action, which is not conducive to user experience, so it is necessary to improve the self-resetting mechanism of switch of prior art. SUMMARY

[0003] The utility model aims at overcoming the deficiency of prior art, first provides a kind of switch self-resetting mechanism, it is favorable to make switch action flexible and stable.

[0004] The utility model aims at overcoming the deficiency of prior art, first provides a kind of switch self-resetting mechanism, it is favorable to make switch action flexible and stable.

[0005] The utility model discloses a switch self-resetting mechanism, including inner button, dial block, switch dial arm and be used for to the inner button forward thrust of applying reset spring, the inner button is slidably arranged, the front end of reset spring is connected with the inner button, the rear end of dial block is driven and is connected with the switch dial arm, wherein, the inner button is formed with hinged limiting hole, the front end of dial block is formed with hinged shaft head, the hinged shaft head is movably arranged in the corresponding hinged limiting hole, the upper and lower sides of dial block are correspondingly provided with balance spring piece, the balance spring piece includes spring body, the rear part of spring body is attached to the dial block by the elastic recovery force of spring body, the balance spring piece includes handle piece, one end of handle piece is integrally connected with the front end of spring body, the front side of inner button is formed with recess, spring positioning block is fitted and inserted in the recess, handle piece is clamped between the corresponding spring positioning block and the bottom of recess.

[0006] Preferably, the inner wall of the recess is formed with a button, and the spring positioning block is formed with a button engaging recess, and the button engages the corresponding button engaging recess.

[0007] Preferably, the other end of the handle piece part is correspondingly bent to form a hook piece part, and the hook piece part is adapted to be arranged between the inner wall of the groove and the elastic piece positioning block in the up-down direction.

[0008] Preferably, the two balance elastic pieces are symmetrical to each other.

[0009] The utility model discloses still open a switch function spare, including any one of the above technical scheme's switch self-resetting mechanism, still include bottom shell, lid shell and switch switching suite, the lid shell cover is located the front side of bottom shell, the switch switching suite sets up in bottom shell, the switch dial arm up-down swing articulates in lid shell, the inside button is forward and backward sliding and arranged in lid shell, the rear end of reset spring is connected lid shell.

[0010] The utility model discloses still open a switch, including the switch function spare of above technical scheme, still include face frame and button assembly, the button assembly includes outside button and transmission arm, the transmission arm forward and backward swing articulates in outside button, the transmission arm is up-down symmetrical and is arranged at the rear side of outside button, one end of transmission arm forms the touch press end for pushing back inside button, the other end of transmission arm forms passive end correspondingly, the touch press end is arranged at the front side of the middle part of inside button, passive end is attached to the front side of face frame, the articulation point of transmission arm and outside button is located between touch press end and passive end.

[0011] The utility model discloses still open a switch, including the switch function spare of above technical scheme, still include face frame and button assembly, the button assembly includes outside button and transmission arm, the transmission arm forward and backward swing articulates in outside button, the transmission arm is up-down symmetrical and is arranged at the rear side of outside button, one end of transmission arm forms the touch press end for pushing back inside button, the other end of transmission arm forms passive end correspondingly, the touch press end is arranged at the front side of the middle part of inside button, passive end is attached to the front side of face frame, the articulation point of transmission arm and outside button is located between touch press end and passive end. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the front perspective structural schematic diagram of switch self-resetting mechanism of the utility model.

[0013] Figure 2 It is the right view direction's section structure schematic diagram of switch self-resetting mechanism of the utility model.

[0014] Figure 3 It is the exploded schematic view of the switch self-resetting mechanism of the switch of the utility model.

[0015] Figure 4 It is the cross-sectional structure schematic view of the balance spring, the block and the switch arm combination of the utility model.

[0016] Figure 5 It is the front surface three-dimensional structure schematic view of the switch function piece of the utility model.

[0017] Figure 6 It is the front view structure schematic view of the switch function piece of the utility model.

[0018] Figure 7 It is the cross-sectional structure schematic view of the A-A direction of the utility model. Figure 6

[0019] Figure 8 It is the front surface exploded schematic view of the switch function piece of the utility model.

[0020] Figure 9 It is the back surface exploded schematic view of the switch function piece of the utility model.

[0021] Figure 10 It is the front surface three-dimensional structure schematic view of the self-resetting switch of the utility model.

[0022] Figure 11 It is the back surface exploded schematic view of the self-resetting switch of the utility model.

[0023] Figure 12 It is the cross-sectional structure schematic view of the self-resetting switch of the utility model.

[0024] Figure 13 It is the back surface three-dimensional structure schematic view of the face frame and the key assembly combination of the utility model.

[0025] Figure 14 It is the three-dimensional structure schematic view of the transmission arm of the utility model.

[0026] ​Explanation of reference numerals: face frame 1; key assembly 2; outer key 21; hinged support shaft 211; limiting hook 212; transmission arm 22; touch end 221; slider portion 222; elastic bow portion 223; passive end 224; support frame 3; switch functional part 4; bottom shell 41; cover shell 42; inner key 43; hinged limiting hole 432; light hole 433; groove 434; button 4341; shift block 44; fork leg 4401; balance spring 441; spring body 4410; handle piece 4412; hook piece 4413; hinged shaft head 442; switch switching kit 45; switch swing piece 452; moving contact 4521; shift spring 453; swing support piece 454; static contact 455; reset spring 46; spring positioning block 48; buckling recess 481; switch shift arm 49; pushed inner step 491. DETAILED DESCRIPTION

[0027] The present invention will be further described below in conjunction with the accompanying drawings.

[0028] The switch self-reset mechanism of the utility model is as follows Figures 1 to 4 As shown, it includes an inner button 43, a shift block 44, a switch arm 49, and a return spring 46 for applying a forward thrust to the inner button 43. The inner button 43 is arranged to slide back and forth. The front end of the return spring 46 is connected to the inner button 43, and the rear end of the shift block 44 is driven to connect to the switch arm 49. Figure 3 As shown, the inner button 43 is formed with a hinged limit hole 432, and the front end of the shift block 44 is formed with a hinged shaft head 442. In order to balance the force, the left and right sides of the shift block 44 are each formed with the above-mentioned hinged shaft head 442; Figure 1 Combine Figure 3 As shown, the hinge shaft head 442 is movably arranged in the corresponding hinge limit hole 432, that is, the inner diameter of the hinge limit hole 432 is slightly larger than the diameter of the hinge shaft head 442, so that the hinge shaft head 442 can move radially within the hinge limit hole 432 to a certain extent. More specifically, the inner diameter of the hinge limit hole 432 is 0.2 to 0.3 mm larger than the diameter of the hinge shaft head 442. Since the connection between the shift block 44 and the inner button 43 is an inner and outer circle connection, the shift block 44 has better micro-movement performance relative to the inner button 43. Figures 2 to 4 As shown, the upper and lower sides of the shift block 44 are respectively provided with a balancing spring piece 441, and the balancing spring piece 441 includes a spring piece body 4410. The rear part of the spring piece body 4410 is pressed against the shift block 44 by the elastic restoring force of the spring piece body 4410. The balancing spring piece 441 includes a handle piece 4412. One end of the handle piece 4412 is connected to the front end of the spring piece body 4410. Figure 2In the embodiment, the handle piece part 4412 is arranged along the up-down direction, and the spring body 4410 forms an obtuse angle with the handle piece part 4412, so that the front end of the spring body 4410 is away from the knob 44, and the rear part of the spring body 4410 contacts the knob 44, thus the knob 44 is clamped between the two spring bodies 4410, and the contact part of the spring body 4410 with the knob 44 is at the rear side of the hinge shaft head 442. As shown in Figure 3 , the front side of the inner key 43 is formed with a groove 434, as shown in Figure 1 and Figure 2 , a spring positioning block 48 is fitted and inserted in the groove 434, and the handle piece part 4412 is clamped between the corresponding spring positioning block 48 and the bottom of the groove 434. Specifically, the groove 434 is open at one end close to the hinge limiting hole 432 (it can be understood as having a notch), thus when the balance spring 441 is put into the groove 434 from front to back, the above-mentioned notch can avoid the connecting part of the spring body 4410 and the handle piece part 4412, then the handle piece part 4412 abuts against the bottom of the groove 434, and then the spring positioning block 48 is inserted into the groove 434 from front to back, thus the spring positioning block 48 combines with the bottom of the groove 434 to position the handle piece part 4412 in the front-rear direction, and the inner wall of the groove 434 also positions the handle piece part 4412 in the left-right direction. As shown in Figure 4 , the two balance springs 441 suspend the knob 44 on the hinge limiting hole 432, that is, the knob 44 is arranged in a floating manner. As shown in Figure 9 , the switch switching set 45 includes a switch swing piece 452, a push spring 453, a swing support piece 454, and a static contact 455. The front part of the push spring 453 is arranged in the switch knob arm 49, the rear end of the push spring 453 is sleeved outside the tab of the front end part of the switch swing piece 452, the rear end of the switch swing piece 452 abuts against the front side of the swing support piece 454, and the front end part of the switch swing piece 452 is also provided with a dynamic contact 4521.

[0029] As shown in Figure 4 and Figure 9 , since the push spring 453 generates a tangential component force on the switch swing piece 452 along the swing direction of the switch swing piece 452, the dynamic contact 4521 can abut against one of the two static contacts 455 through the elastic force of the push spring 453, as shown in Figure 7 , when the inner key 43 is pressed backward, the inner key 43 moves backward, and the reset spring 46 is elastically compressed and deformed. Since the hinge shaft head 442 is movably arranged in the corresponding hinge limiting hole 432, the inner key 43 can drive the knob 44 to move backward, as shown in Figure 4As shown, at this time, the switch lever 49 is in an inclined state relative to the horizontal plane, thus causing the front upper end of the switch lever 49 to be located in front of the front lower end of the switch lever 49, for example, so that the rear end of the plunger 44 is first in contact with the front upper end of the switch lever 49, and the swing center of the plunger 44 is substantially at the same height as the swing center of the switch lever 49, thus the rearward pushing force of the inner key 43 on the switch lever 49 generates a clockwise moment on the switch lever 49, for example, so that the rear end of the switch lever 49 swings downward, the switch lever 49 drives the plunger spring 453 to swing downward, and the plunger spring 453 can drive the switch swing piece 452, thereby realizing the switching contact of the movable contact 4521 with the static contact 455. When the inner key 43 is released, the elastic restoring force of the return spring 46 pushes the inner key 43 forward, specifically, the upper portion of the inner key 43 and the lower portion of the inner key 43 are each provided with a return spring 46, which is beneficial to balance the upward and downward forces of the inner key 43 and facilitate the flexible resetting of the inner key 43. As can be seen from the above, in fact, the plunger 44 drives the switch lever 49 to swing to realize the switch action, by floatingly arranging the plunger 44, when the plunger 44 and the switch lever 49 are in contact with each other, the plunger 44 can elastically yield, avoiding the plunger 44 from hindering the activity of the switch lever 49, that is, the plunger 44 drives the switch lever 49 to swing more flexibly, which is beneficial to the flexible switch action. Since the elastic restoring force of the balance spring 441 supports the plunger 44, avoiding the plunger 44 from loosening, thus being beneficial to the effective force transmission, thereby being beneficial to the stable switch function. Since the balance spring 441 is of a plate structure, compared with a spiral compression spring structure, the elastic swing of the spring body 4410 is stable as up-and-down swing, and the spring body 4410 is not prone to torsional deformation, so the support of the spring body 4410 to the plunger 44 is relatively stable.

[0030] Further, as shown in Figure 3 The inner wall of the groove 434 is formed with a buckle 4341, and the spring positioning block 48 is formed with a buckle receiving recess 481, the buckle 4341 buckles the corresponding buckle receiving recess 481, so that during assembly of the spring positioning block 48, the spring positioning block 48 is first slightly squeezed to open the groove 434, when the buckle 4341 reaches the buckle receiving recess 481, the groove 434 elastically recovers the shape, so that the buckle 4341 enters the corresponding buckle receiving recess 481, and the forward movement of the spring positioning block 48 is blocked by the buckle 4341, thereby avoiding the spring positioning block 48 from falling out. The above structure can quickly install and position the spring positioning block 48 on the inner key 43.

[0031] Further, as shown in Figure 3 The other end of the handle piece portion 4412 is bent forward to form a hook piece portion 4413, in other words, the hook piece portion 4413 is perpendicular to the handle piece portion 4412, as shown in Figure 2As shown, the hook piece part 4413 is adapted between the inner wall of the groove 434 and the elastic piece positioning block 48 in the up-down direction, so as to avoid the up-down loosening of the balance elastic piece 441, and facilitate the effective elastic restoring force of the elastic piece body 4410 to act on the push block 44.

[0032] Further, as shown in Figure 2 and Figure 4 , the two balance elastic pieces 441 are symmetrical to each other, so as to facilitate the force balance of the push block 44, avoid the hinged shaft head 442 being driven to be biased on one side of the hinged limiting hole 432, and facilitate the effective floating arrangement of the push block 44.

[0033] The switch function part 4 of the utility model, as shown in Figures 5 to 9 , comprises a bottom shell 41, a cover shell 42 and a switch switching sleeve 45, the cover shell 42 is covered on the front side of the bottom shell 41, the cover shell 42 is buckled with the front part of the bottom shell 41, the switch switching sleeve 45 is arranged in the bottom shell 41, the structure of the switch switching sleeve 45 is as above, the switch switching sleeve 45 belongs to the prior art, the switch function part of the utility model further comprises the switch self-resetting mechanism described above, the front part of the switch push arm 451 is up-down swing hinged to the cover shell 42, specifically, the push block 44 pushes the switch push arm 49 backward to make the switch push arm 49 swing up-down, the inner key 43 is front-rear sliding arranged in the cover shell 42, that is to say, the inner wall of the cover shell 42 plays a guiding role on the front-rear movement of the inner key 43, as shown in Figure 7 , the rear end of the reset spring 46 is connected with the cover shell 42. Since the switch function part 4 of the utility model is provided with the switch self-resetting mechanism of the utility model, the switch action of the switch function part 4 is flexible and stable.

[0034] The self-resetting switch of the utility model, as shown in Figures 10 to 14 , comprises the switch function part 4 described above; the self-resetting switch of the utility model further comprises a face frame 1 and a key assembly 2, the key assembly 2 comprises an outer key 21 and a transmission arm 22, the transmission arm 22 is front-rear swing hinged to the outer key 21, the transmission arm 22 is up-down symmetrically arranged on the rear side of the outer key 21, one end of the transmission arm 22 is formed with a touch press end 221 for pushing the inner key 43 backward, the other end of the transmission arm 22 is formed with a passive end 224, the touch press end 221 is arranged on the front side of the middle part of the inner key 43 in the up-down direction, so that the transmission arm 22 is up-down symmetrically distributed about the horizontal plane of the swing axis of the push block 44, as shown in Figure 12 , the gap between the two touch press ends 221 is small, but needs to avoid the interference between the two touch press ends 221, for example, the gap between the two touch press ends 221 can be 1mm to 3mm, as shown in Figure 12 and Figure 13As shown, the passive end 224 is attached to the front side of the face frame 1 , and the hinge point between the transmission arm 22 and the external button 21 is located between the touch end 221 and the passive end 224 .

[0035] Specifically, if Figure 13 As shown, a hinged support shaft 211 is formed behind the outer button 21, and the V-shaped groove in the middle of the transmission arm 22 in the vertical direction is engaged with the hinged support shaft 211. In fact, the arc-shaped bottom of the V-shaped groove contacts the hinged support shaft 211, so that the transmission arm 22 forms a seesaw structure with respect to the hinged support shaft 211. As shown in Figure 12, the rear part of the face frame 1 is engaged with the support frame 3, and the front part of the cover shell 42 is arranged in the support frame 3, and the cover shell 42 is engaged with the support frame 3. Figure 12 In the case of a self-reset switch, the self-reset switch is in a free reset state. Figure 10 As shown, at this time, the outer button 21 is flush with the front of the face frame 1. When the person's finger presses the middle part of the outer button 21 in the vertical direction backward, since the transmission arms 22 are symmetrically arranged on the rear side of the outer button 21, the touch ends 221 of the upper and lower transmission arms 22 move backward roughly synchronously, and since the passive end 224 is close to the front side of the face frame 1, the face frame 1 pushes the passive end 224 forward relatively, so that the touch end 221 swings backward relative to the outer button 21, so that the touch end 221 contacts and pushes the inner button 43 backward, thereby realizing the switch switching; when the finger releases the outer button 21, the inner button 43 moves forward and resets due to the elastic restoring force of the reset spring 46, so that the front of the inner button 43 pushes the touch end 221 forward, so that the button assembly 2 is reset forward. During the reset process of the button assembly 2, since the transmission arms 22 are symmetrically arranged on the rear side, the outer button 21 returns to its original position due to force balance. Figure 10 For example, when a person's finger reaches backward to touch and press the lower part of the outer button 21, since the front part of the face frame 1 blocks the passive end 224, the hinged support shaft 211 at the lower position can push the transmission arm 22 at the lower position backward, so that the touch end 221 of the transmission arm 22 at the lower position is obviously swung backward relative to the outer button 21, and the touch end 221 at the lower position presses the inner button 43 backward, thereby realizing the switch switching. When the person releases the outer button 21, the inner button 43 pushes the touch end 221 at the lower position forward, and since the passive end 224 at the lower position is supported by the face frame 1, the transmission arm 22 at the lower position can push the hinged support shaft 211 at the lower position forward, and finally the outer button 21 is reset to the Figure 10 The state shown in FIG. 1 can also be understood as follows: since the hinge support shaft 211 is symmetrically distributed up and down, the outer button 21 in the free state is prevented from being biased up and down, so that the outer button 21 can always be reset to the position. Figure 10The balance state is shown. Since the self-resetting switch is provided with the switch function part 4, the switch action of the self-resetting switch is flexible and stable.

[0036] As described above, since the transmission arms 22 are symmetrically arranged on the upper and lower sides of the rear side of the outer key 21 and the front side of the middle part of the inner key 43 is arranged at the combined pressing end 221, the pushing force applied to the upper part of the outer key 21 or the lower part of the outer key 21 can be transmitted to the middle part of the inner key 43 through the corresponding transmission arm 22, so that the inner key 43 is not obviously biased and stressed, and the inner key 43 can be flexibly and stably moved forward and backward, which is beneficial to the flexible and stable switching of the switch. The utility model sets up one swing structure on the upper and lower sides, that is, the transmission arm 22 can transmit the biased stress of the outer key 21 to the middle part of the inner key 43, so that the transmission structure is relatively simple, and the function of the self-resetting switch is stable.

[0037] Further, as shown in Figure 14 The transmission arm 22 is formed with an elastic bow part 223 for generating an elastic restoring force in the upward and downward directions, one end of the elastic bow part 223 is integrally connected with the transmission arm 22 body, and the other end of the elastic bow part 223 is formed with a sliding block part 222, as shown in Figure 13 The sliding block part 222 is linearly slidably connected with the face frame 1, that is, the sliding block part 222 is guided by the face frame 1. Specifically, the back of the face frame 1 is formed with a groove extending in the front and rear directions, and the sliding block part 222 is slidably arranged in the corresponding groove. Since the elastic bow part 223 has an elastic opening tendency, that is, the elastic restoring force of the elastic bow part 223 generates a pushing force in the upward and downward directions on the groove, and the pushing force is supported by the hinged support shaft 211. Since the transmission arm 22 is symmetrically arranged in the upward and downward directions, the outer key 21 can be floatingly positioned in the upward and downward directions, that is, when the outer key 21 moves relative to the face frame 1, the elastic bow part 223 can be elastically deformed, which avoids loosening of the outer key 21 and enables the outer key 21 to be flexibly moved relative to the face frame 1. As shown in Figure 11 The rear side of the outer key 21 is formed with a limiting hook 212, the middle part of the face frame 1 is formed with a rectangular through hole, and the limiting hook 212 is buckled on the rear side of the edge part of the rectangular through hole, so that the outer key 21 is prevented from being separated from the face frame 1.

[0038] Further, as shown in Figure 4 And Figure 7As shown, the switch lever 49 is arranged to swing up and down, and a recess is formed in the front end of the switch lever 49, and the upper and lower ends of the recess are respectively formed with a pushed inner step 491, and the rear end of the lever block 44 is formed with a prong 4401, which is adapted to be connected with the corresponding pushed inner step 491. In other words, in the free state of the self-resetting switch after the switch is switched, for example, the prong 4401 in the upper position is adapted to be connected with the pushed inner step 491 in the upper position, at this time, the inner key 43 is moved backward to drive the lever block 44 to move backward, and the prong 4401 in the upper position pushes the pushed inner step 491 in the upper position backward, so that the switch lever 49 swings clockwise in the visual direction of Figure 4 , and thus the switch is switched to the prong 4401 in the lower position being adapted to be connected with the pushed inner step 491 in the lower position. The arrangement of the pushed inner step 491 can avoid the rear end of the lever block 44 from being separated from the switch lever 49, and thus is conducive to the stable and reliable function of the self-resetting switch of the utility model. As described above, since the lever block 44 and the inner key 43 are floatingly hinged, when the prong 4401 and the pushed inner step 491 are in contact with each other, the lever block 44 can be elastically floated in a small range, so as to avoid the occurrence of jamming.

[0039] As shown in Figure 13 and Figure 14 , each transmission arm 22 is provided with two left and right distributed touch press ends 221 and two left and right distributed passive ends 224, so as to be conducive to increasing the force range of the inner key 43 in the left and right directions, avoiding the obvious bias of the inner key 43 in the left and right directions, and thus being conducive to the flexible movement of the inner key 43 in the front and back directions.

Claims

1. A switch self-resetting mechanism, comprising an inner button (43), a shift block (44), a switch shift arm (451), and a return spring (46) for applying a forward thrust to the inner button (43), wherein the inner button (43) is arranged to slide back and forth, a front end of the return spring (46) is connected to the inner button (43), and a rear end of the shift block (44) is drivingly connected to the switch shift arm (451), characterized in that: The inner button (43) is formed with a hinged limiting hole (432), the front end of the shift block (44) is formed with a hinged shaft head (442), the hinged shaft head (442) is movably arranged in the corresponding hinged limiting hole (432), and the upper and lower sides of the shift block (44) are respectively provided with a balancing spring (441), the balancing spring (441) includes a spring body (4410), the rear part of the spring body (4410) is elastically supported by the spring body (4410). The restoring force is applied to the shift block (44), the balancing spring (441) includes a handle portion (4412), one end of the handle portion (4412) is integrally connected to the front end of the spring body (4410), a groove (434) is formed on the front side of the inner button (43), a spring positioning block (48) is adapted to be inserted into the groove (434), and the handle portion (4412) is sandwiched between the corresponding spring positioning block (48) and the bottom of the groove (434).

2. The switch self-resetting mechanism according to claim 1, characterized in that: A button (4341) is formed on the inner wall of the groove (434), and a buckling recess (481) is formed on the spring positioning block (48), and the button (4341) buckles with the corresponding buckling recess (481).

3. The switch self-resetting mechanism according to claim 1 or 2, characterized in that: The other end corresponding to the handle portion (4412) is bent forward to form a hook portion (4413), and the hook portion (4413) is adapted to be arranged between the inner wall of the groove (434) and the spring positioning block (48) in the up-down direction.

4. The switch self-resetting mechanism according to claim 1 or 2, characterized in that: The upper and lower balancing springs (441) are symmetrical to each other.

5. A switch function component, comprising a bottom shell (41), a cover shell (42) and a switch switching kit (45), wherein the cover shell (42) is arranged on the front side of the bottom shell (41), and the switch switching kit (45) is arranged in the bottom shell (41), characterized in that: The switch self-resetting mechanism comprises the switch self-resetting mechanism according to any one of claims 1 to 4, wherein the switch arm (451) is hinged to the cover shell (42) for swinging up and down, the inner button (43) is arranged in the cover shell (42) for sliding back and forth, and the rear end of the reset spring (46) is connected to the cover shell (42).

6. A self-resetting switch, characterized in that: The invention comprises the switch functional part according to claim 5; and further comprises a face frame (1) and a key assembly (2), wherein the key assembly (2) comprises an outer key (21) and a transmission arm (22), wherein the transmission arm (22) swings forward and backward and is hinged to the outer key (21), and the transmission arm (22) is symmetrically arranged on the rear side of the outer key (21) in an upper and lower direction, and a touch end (221) for pushing the inner key (43) backward is formed at one end of the transmission arm (22), and a passive end (224) is formed at the other corresponding end of the transmission arm (22), wherein the touch end (221) is arranged on the front side of the middle part of the inner key (43), and the passive end (224) is abutted against the front side of the face frame (1), and the hinge point between the transmission arm (22) and the outer key (21) is located between the touch end (221) and the passive end (224).

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